CN215158789U - Buffer memory type conveying device - Google Patents
Buffer memory type conveying device Download PDFInfo
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- CN215158789U CN215158789U CN202120647104.7U CN202120647104U CN215158789U CN 215158789 U CN215158789 U CN 215158789U CN 202120647104 U CN202120647104 U CN 202120647104U CN 215158789 U CN215158789 U CN 215158789U
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- buffer conveyor
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- 239000000872 buffer Substances 0.000 title claims abstract description 173
- 230000007306 turnover Effects 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims description 51
- 230000000903 blocking effect Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The utility model relates to a buffer memory formula conveyor, it is used for transportation and buffer memory circuit board turnover basket, include: the buffer type conveyors are parallel to each other; a selection input unit, adjacent to the first end of each buffer type conveyor, for receiving the circuit board turnover basket and selectively conveying the circuit board turnover basket to any one of the plurality of buffer type conveyors; and a selection output unit adjacent to the second end of each buffer conveyor, capable of selecting and receiving the circuit board turnover basket output by any one of the plurality of buffer conveyors, and outputting the circuit board turnover basket. The utility model discloses a buffer memory formula conveyor can be at the more circuit board turnover baskets of condition buffer memory that do not increase self length to satisfy the production demand of upper and lower reaches.
Description
Technical Field
The utility model belongs to the technical field of circuit board production, concretely relates to buffer memory formula conveyor.
Background
A circuit board is one of important parts in the electronic industry, and it is required to load the circuit board into a circuit board transfer basket and transfer the circuit board transfer basket to a subsequent assembly process in a production process of the circuit board represented by a PCB board. Because the speed of loading the circuit board into the circuit board turnover basket is different from the assembly speed of the circuit board, in order to avoid that the circuit board turnover basket cannot be obtained in time in the subsequent assembly process, the number of the circuit boards loaded into the circuit board turnover basket is required to be more than that of the circuit boards required by the subsequent assembly process, and the excessive circuit board turnover baskets are cached. The buffer type conveying device in the prior art comprises a buffer type conveyor and a blocking mechanism arranged at one end of the buffer type conveyor. The blocking mechanism can prevent the circuit board turnover basket from being output when a subsequent assembly process does not need to acquire a new circuit board, so that the buffer type conveyor buffers the circuit board turnover basket, can allow the circuit board turnover basket to be output when the subsequent assembly process needs to acquire the new circuit board, and can ensure that the subsequent assembly process can acquire the circuit board turnover basket in time. However, when the throughput of the circuit boards is larger, the number of circuit board turnover baskets that the buffer type conveying device can carry is more, so that the buffer type conveyor is forced to be longer to meet the use requirement. Therefore, how to increase the buffer amount of the buffer conveyor to the circuit board turnover basket without increasing the length becomes a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned whole or partial problem, the utility model aims to provide a buffer memory formula conveyor, it is used for solving buffer memory formula conveyer can't buffer memory the problem of more circuit board turnover baskets under the condition that does not increase self length.
The utility model provides a buffer memory formula conveyor for transportation and buffer memory circuit board turnover basket, include: a plurality of buffer type conveyors, the plurality of buffer type conveyors being parallel to each other; a selection input unit adjacent to a first end of each buffer conveyor for receiving the circuit board turnaround basket and enabling selection of conveyance of the circuit board turnaround basket onto any one of the plurality of buffer conveyors; and a selection output unit adjacent to the second end of each buffer conveyor, and capable of selecting and receiving a circuit board turnaround basket output by any one of the plurality of buffer conveyors, and outputting the selected circuit board turnaround basket.
Further, the selection input unit comprises a first linear driving mechanism vertically adjacent to a first end of the buffer conveyor and an input conveyor arranged on the first linear driving mechanism and driven by the first linear driving mechanism, and the conveying direction of the input conveyor is parallel to the conveying direction of the buffer conveyor.
Further, first linear drive mechanism includes the support, the fixed setting is in rotation source on the support, set up and be in rotation source last driving pulley and rotationally set up on the support and by the driven pulleys of rotation source drive to and the cover is established the belt on driving pulley and the driven pulleys, the fixed setting of input transmission machine is in on the belt.
Further, the selective output unit comprises a second linear driving mechanism vertically adjacent to the second end of the buffer type conveyor and an output conveyor arranged on the second linear driving mechanism and driven by the second linear driving mechanism, and the conveying direction of the output conveyor is parallel to the conveying direction of the buffer type conveyor.
Further, the second linear driving mechanism comprises a support, a fixed type arranged on a rotating source on the support, a driving belt wheel arranged on the rotating source, a driven belt wheel rotationally arranged on the support and driven by the rotating source, and a belt sleeved on the driving belt wheel and the driven belt wheel, wherein the output transmission machine is fixedly arranged on the belt.
Further, the input conveyor, the buffer conveyor and the output conveyor are speed-multiplying chain conveyors.
Furthermore, the buffer type conveying device also comprises a plurality of blocking mechanisms, the blocking mechanisms are arranged on the second end parts of the buffer type conveying machines in a one-to-one correspondence mode, and the blocking mechanisms can prevent the circuit board turnover basket from being separated from the buffer type conveying machines and allow the buffer type conveying machines to output the circuit board turnover basket.
Further, the blocking mechanism is a cylinder.
The buffer type conveying device further comprises a sensing assembly and a control module, wherein the sensing assembly is arranged on the buffer type conveyor and used for sensing the number of the circuit board turnover baskets on the buffer type conveyor, the control module is electrically connected with the sensing assembly, and the control module is arranged to control the buffer type conveyor, the selection input unit and/or the selection output unit which are connected with the control module according to the detection result of the sensing assembly.
Further, the sensing assembly comprises photoelectric sensors respectively arranged at two ends of each buffer type conveyor.
According to the above technical scheme, the utility model provides a during buffer memory formula conveyor can distribute many buffer memory formula transmitters with circuit board turnover basket with the help of selecting input unit, borrow again to select output unit to export circuit board turnover basket. Therefore, when the length of buffer memory formula conveyer is restricted on the spot, the utility model provides a buffer memory formula conveyor can reach the purpose of the more circuit board turnover basket of buffer memory through the mode that increases the quantity of buffer memory formula conveyer. Therefore, the utility model discloses a buffer memory formula conveyor can buffer memory more circuit board turnover baskets under the condition that does not increase self length. Meanwhile, the buffer memory type conveying device is simple in structure, convenient to manufacture, practical, safe, reliable and convenient to implement, popularize and apply.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the figure:
fig. 1 is a top view of a buffer type conveying device according to an embodiment of the present invention;
fig. 2 schematically shows a buffer type conveying device according to an embodiment of the present invention in a use state.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a top view of a buffer type conveying device according to an embodiment of the present invention. Fig. 2 schematically shows a buffer type conveying device according to an embodiment of the present invention in a use state. As shown in fig. 1 and fig. 2, a buffer storage type conveying device 100 according to an embodiment of the present invention is used for transporting and buffering a circuit board turnover basket 200. The buffer conveyor 100 includes a plurality of buffer conveyors 1, a selection input unit 2, and a selection output unit 3. Wherein a plurality of buffer conveyors 1 are parallel to each other. The selection input unit 2 is adjacent to a first end of each buffer conveyor 1, and is configured to receive the circuit board turnaround basket 200 and to be able to selectively convey the circuit board turnaround basket 200 to any one of the plurality of buffer conveyors 1. The selection output unit 3 is adjacent to the second end of each buffer conveyor 1, and can select and output the board turnaround basket 200 that receives the output of any of the plurality of buffer conveyors 1. Wherein, the distance between the adjacent fingers is less than or equal to 1 cm. The circuit board is preferably, but not limited to, a PCB board. The length of the buffer conveyor 1 is preferably any value from 1.5m to 3 m. However, in this embodiment, the length of the board turnaround basket 200 in the conveying direction of the buffer conveyor 1 is 0.44m, and the length of the buffer conveyor 1 is preferably 2.2m, which is just capable of buffering 5 board turnaround baskets 200. The number of buffer conveyors 1 may be adjusted according to the actual production scale of the circuit board, but in the present embodiment, the number of buffer conveyors 1 is preferably 5.
According to the above technical solution, the buffer type conveying device 100 of the embodiment of the present invention can distribute the circuit board turnover basket 200 to the plurality of buffer type conveying machines 1 by means of the selection input unit 2, and then output the circuit board turnover basket 200 by means of the selection output unit 3. Therefore, when the length of the buffer conveyor 1 is limited in the field, the buffer conveyor 100 according to the embodiment of the present invention can buffer more circuit board turnover baskets 200 by increasing the number of the buffer conveyors 1. Therefore, the utility model discloses buffer memory formula conveyor 100 can buffer memory more circuit board turnover baskets under the condition that does not increase self length to satisfy the production demand of upper and lower reaches. Meanwhile, the buffer memory type conveying device is simple in structure, convenient to manufacture, practical, safe, reliable and convenient to implement, popularize and apply.
In the present embodiment, the selection input unit 2 includes a first linear driving mechanism 21 vertically adjacent to the first end portion of the buffer conveyor 1 and an input conveyor 22 provided on the first linear driving mechanism 21 and driven by the first linear driving mechanism 21. The transport direction of the input conveyor 22 is parallel to the transport direction of the buffer conveyor 1. This enables the input conveyor 22 to receive the circuit board turnaround basket 200 and to selectively convey the circuit board turnaround basket 200 onto any one of the plurality of buffer conveyors 1 under the drive of the first linear drive mechanism 21. The input conveyor 22 may be a double-speed chain conveyor or a synchronous belt conveyor, but is preferably a double-speed chain conveyor that has low energy consumption and low noise and can carry a large load.
In the present embodiment, the first linear driving mechanism 21 preferably includes a bracket, a rotation source fixedly disposed on the bracket, a driving pulley disposed on the rotation source, a driven pulley rotatably disposed on the bracket and driven by the rotation source, and a belt disposed on the driving pulley and the driven pulley. The input conveyor 22 is fixedly disposed on the belt. The first linear drive mechanism 21 can perform relatively precise transmission to the input conveyor 22. Wherein, the rotation source can be selected as a device capable of outputting rotation, such as an electric motor, an engine, a hydraulic motor or a combination of one of the electric motor, the engine and the hydraulic motor and a speed reducer. Preferably a motor which is small in size and mature in technology.
In the present embodiment, the selection output unit 3 includes a second linear driving mechanism 31 vertically adjacent to the second end portion of the buffer conveyor 1 and an output conveyor 32 provided on the second linear driving mechanism 31 and driven by the second linear driving mechanism 31. The conveying direction of the output conveyor 32 is parallel to the conveying direction of the buffer conveyor 1. This enables the output conveyor 32 to select the board turnaround basket 200 that receives the output of any one of the plurality of buffer conveyors 1 and output it, under the drive of the second linear drive mechanism 31. The output conveyor 32 may be a double-speed chain conveyor or a synchronous belt conveyor, but is preferably a double-speed chain conveyor that has low energy consumption and low noise and can bear a large load.
In the present embodiment, the second linear driving mechanism 31 preferably includes a bracket, a rotation source fixedly disposed on the bracket, a driving pulley disposed on the rotation source, a driven pulley rotatably disposed on the bracket and driven by the rotation source, and a belt disposed on the driving pulley and the driven pulley. The output conveyor 32 is fixedly disposed on the belt. The second linear driving mechanism 31 can perform relatively accurate transmission to the output conveyor 32. Wherein, the rotation source can be selected as a device capable of outputting rotation, such as an electric motor, an engine, a hydraulic motor or a combination of one of the electric motor, the engine and the hydraulic motor and a speed reducer. Preferably a motor which is small in size and mature in technology.
In this embodiment, the buffer conveyor 1 may be selected as a double-speed chain conveyor or a synchronous belt conveyor. However, since the maximum weight that the buffer conveyor 1 needs to bear is large, in order to reduce the risk of the buffer conveyor 1 failing due to the heavy load, it is preferable to use a double speed chain capable of bearing a large load.
In this embodiment, the buffer conveyor 100 further includes a plurality of blocking mechanisms 4. The plurality of blocking mechanisms 4 are provided on the second end portions of the plurality of buffer conveyors 1 in one-to-one correspondence. The blocking mechanism 4 can both prevent the circuit board transfer basket 200 from coming off the buffer conveyor 1 and allow the buffer conveyor 1 to output the circuit board transfer basket 200. That is, when a subsequent assembly process does not require a new circuit board to be obtained, blocking mechanism 4 can prevent circuit board turnaround basket 200 from being disengaged from buffer conveyor 1 and force buffer conveyor 1 to buffer circuit board turnaround basket 200. When a new circuit board needs to be obtained in a subsequent assembly process, the blocking mechanism 4 can allow the buffer conveyor 1 to output the circuit board turnover basket 200, and ensure that the assembly work of the circuit board can be continuously performed. The blocking mechanism 4 is preferably, but not limited to, a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, or an electric motor, etc., but in the present embodiment, the blocking mechanism 4 is preferably an environmentally friendly, energy-saving, and low-cost cylinder.
In this embodiment, the buffer conveyor 100 further includes a sensor assembly (not shown) disposed on the buffer conveyor 1 for sensing the number of circuit board transfer baskets 200 on the buffer conveyor 1, and a control module (not shown) electrically connected to the sensor assembly. The control module is configured to: the buffer conveyor 1, the selection input unit 2 and/or the selection output unit 3 connected with the sensor assembly can be controlled according to the detection result of the sensor assembly. The buffer conveyor 1 may be configured to continuously convey the circuit board turnaround basket 200 in a direction approaching the blocking mechanism 4 after being turned on, or may be configured to convey the circuit board turnaround basket 200 in a direction approaching the blocking mechanism 4 after receiving a signal from the control module.
For example, the buffer conveyors 1 may be configured to continuously convey the circuit board turnaround baskets 200 in a direction approaching the blocking mechanism 4 after being turned on, and the control module may be configured to control the selection input unit 2 to select one buffer conveyor 1 according to a predetermined conveyance sequence and convey the circuit board turnaround baskets 200 onto the buffer conveyor 1 when the sensing assembly detects that no circuit board turnaround baskets 200 are present on all the buffer conveyors 1, and control the blocking mechanism 4 to prevent the circuit board turnaround baskets 200 from being separated from the buffer conveyors 1, thereby buffering the circuit board turnaround baskets 200. When the sensing component detects that circuit board turnover baskets 200 are arranged on any buffer type conveyor 1 and the number of the circuit board turnover baskets 200 is less than the maximum number of the circuit board turnover baskets 200 which can be accommodated by the buffer type conveyor 1, the selection input unit 2 is controlled to convey the circuit board turnover baskets 200 onto the buffer type conveyor 1. When the sensor unit detects that the number of turnaround baskets on the buffer conveyor 1 is equal to the maximum number of circuit board turnaround baskets 200 that can be accommodated by the buffer conveyor 1, it can control the selection input unit 2 to upload the circuit board turnaround baskets 200 to the next buffer conveyor 1 in a predetermined transfer order. When it is necessary to transfer the circuit board turnaround basket 200 to a subsequent assembly process, the control module may select the buffer conveyor 1 that outputs the circuit board turnaround basket 200 according to a predetermined transfer sequence, and control the blocking mechanism 4 provided on the buffer conveyor 1 so that the blocking mechanism 4 allows the buffer conveyor 1 to output the circuit board turnaround basket 200. Meanwhile, the control module controls the selection output unit 3 to receive and output the circuit board turnover basket 200 output by the buffer type conveyor 1. When the sensing component detects that there is no circuit board turnover basket 200 on the buffer type conveyor 1, the control module can select the next buffer type conveyor 1 for outputting the circuit board turnover basket 200 according to a predetermined transmission sequence, and control the blocking mechanism 4 arranged on the buffer type conveyor 1, so that the blocking mechanism 4 allows the buffer type conveyor 1 to output the circuit board turnover basket 200. Meanwhile, the selection output unit 3 receives the circuit board turnaround basket 200 output by the buffer conveyor 1 and outputs it. When the circuit board turnover basket 200 does not need to be transferred to a subsequent assembly process, the control module can control the blocking mechanism 4 to prevent the circuit board turnover basket 200 from being separated from the buffer type conveyor 1, so that the buffer type conveyor 1 buffers the circuit board turnover basket 200, and records the buffer type conveyor 1 which finally outputs the circuit board turnover basket 200. When the circuit board turnaround basket 200 needs to be transferred to the subsequent assembly process next time, the control module can select the buffer conveyor 1 to output the circuit board turnaround basket 200, and select the next buffer conveyor 1 according to a predetermined transfer sequence after all the circuit board turnaround baskets 200 on the buffer conveyor 1 are output.
The predetermined transmission sequence can be set according to actual requirements. For example, the buffer conveyor 1 adjacent to the input conveyor 22 when the input conveyor 22 is conveyed to one end of the first linear driving mechanism 21 is set as the first buffer conveyor 1, and the buffer conveyors extend in the direction in which the input conveyor 22 is conveyed. The control module may include a programmable logic control unit (such as a PLC or a CPU), a memory, and an electronic component connected to the programmable logic control unit, etc., which are well known to those skilled in the art and will not be described in detail herein.
The sensing component can be selected as a laser ranging sensor, an infrared ranging sensor or a photoelectric sensor. In the present embodiment, however, the sensing unit preferably includes photosensors, preferably diffusion reflection type photoelectric switches, provided at both ends of each buffer conveyor 1. Taking the diffuse reflection type photoelectric switch as an example, when none of the diffuse reflection type photoelectric switches disposed at the two ends of the buffer type conveyor 1 receives the optical signal, the control module can determine that there is no circuit board turnover basket 200 on the buffer type conveyor 1 according to the detection result. When the diffuse reflection type photoelectric switch disposed at one end of the buffer type conveyor 1 close to the selection input unit 2 receives an optical signal, and the diffuse reflection type photoelectric switch at one end close to the selection output unit 3 does not receive the optical signal, the control module can determine that the first circuit board turnaround basket 200 is input to the buffer type conveyor 1 according to the detection result, and start counting. The control module can judge that a circuit board turnover basket 200 is added to the buffer type conveyor 1 every time the diffuse reflection type photoelectric switch arranged at one end of the buffer type conveyor 1 close to the selection input unit 2 receives an optical signal. When the diffuse reflection type photoelectric switches disposed at both ends of the buffer type transmitter 1 receive the optical signal, the control module can determine that the number of the circuit board turnaround baskets 200 on the buffer type transmitter 1 reaches the maximum value according to the detection result.
To sum up, the utility model discloses buffer memory formula conveyor 100 can solve buffer memory formula conveyer and can't buffer memory the problem of more circuit board turnover baskets under the condition that does not increase self length.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily make changes or variations within the technical scope of the present invention, and such changes or variations should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. A buffer memory type conveying device is used for transporting and buffering circuit board turnover baskets and is characterized by comprising:
a plurality of buffer type conveyors, the plurality of buffer type conveyors being parallel to each other;
a selection input unit adjacent to a first end of each buffer conveyor for receiving the circuit board turnaround basket and enabling selection of conveyance of the circuit board turnaround basket onto any one of the plurality of buffer conveyors;
and a selection output unit adjacent to the second end of each buffer conveyor, and capable of selecting and receiving a circuit board turnaround basket output by any one of the plurality of buffer conveyors, and outputting the selected circuit board turnaround basket.
2. The buffer conveyor according to claim 1, wherein the selection input unit comprises a first linear drive mechanism vertically adjacent to a first end of the buffer conveyor and an input conveyor disposed on and driven by the first linear drive mechanism, a conveying direction of the input conveyor being parallel to a conveying direction of the buffer conveyor.
3. The buffer conveyor according to claim 2, wherein the first linear drive mechanism comprises a support, a rotation source fixedly disposed on the support, a driving pulley rotatably disposed on the rotation source, a driven pulley rotatably disposed on the support and driven by the rotation source, and a belt fitted over the driving pulley and the driven pulley, the input conveyor being fixedly disposed on the belt.
4. The buffer conveyor according to claim 2, wherein the selection output unit comprises a second linear drive mechanism vertically adjacent to the second end of the buffer conveyor and an output conveyor disposed on and driven by the second linear drive mechanism, the conveying direction of the output conveyor being parallel to the conveying direction of the buffer conveyor.
5. The buffer conveyor of claim 4, wherein the second linear drive mechanism comprises a support, a rotation source fixedly disposed on the support, a driving pulley rotatably disposed on the rotation source, a driven pulley rotatably disposed on the support and driven by the rotation source, and a belt disposed over the driving pulley and the driven pulley, the output conveyor being fixedly disposed on the belt.
6. The buffer conveyor of claim 4, wherein the input conveyor, buffer conveyor and output conveyor are double speed chain conveyors.
7. The buffer conveyor according to any one of claims 1 to 6, further comprising a plurality of blocking mechanisms provided on second ends of the plurality of buffer conveyors in one-to-one correspondence, which are capable of both preventing the circuit board transfer basket from coming off the buffer conveyor and allowing the buffer conveyor to output the circuit board transfer basket.
8. The buffer transport apparatus according to claim 7, wherein the blocking mechanism is a pneumatic cylinder.
9. The buffer conveyor device according to claim 7, further comprising a sensing assembly arranged on the buffer conveyor and used for sensing the number of circuit board turnover baskets on the buffer conveyor, and a control module electrically connected with the sensing assembly, wherein the control module is arranged to control the buffer conveyor, the selection input unit and/or the selection output unit connected with the sensing assembly according to the detection result of the sensing assembly.
10. The buffer conveyor of claim 9, wherein the sensing assembly comprises a photo sensor disposed at each end of each buffer conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120647104.7U CN215158789U (en) | 2021-03-30 | 2021-03-30 | Buffer memory type conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120647104.7U CN215158789U (en) | 2021-03-30 | 2021-03-30 | Buffer memory type conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215158789U true CN215158789U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120647104.7U Active CN215158789U (en) | 2021-03-30 | 2021-03-30 | Buffer memory type conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215158789U (en) |
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2021
- 2021-03-30 CN CN202120647104.7U patent/CN215158789U/en active Active
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