Method and equipment for detecting material stacking and material leakage of coiled tape package

Abstract

The invention discloses a method and equipment for detecting material stacking and material leakage of a coiled tape package. The method comprises the following steps: conveying a material to a material conveying track; when the materials are conveyed to a capacitance detection device on the material conveying track, the capacitance value of the capacitance detection device is obtained; according to the capacitance value, whether material stacking or material leakage occurs on the material conveying track or not is judged; and stacked materials or leaked materials are treated. According to the invention, whether material stacking or material leakage occurs is judged according to the capacitance value when the material passes through the capacitance detection device, full-automatic detection is realized, and compared with a manual detection mode, the detection efficiency and accuracy can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of tape packaging detection, and in particular relates to a method and equipment for detecting stacking and leakage of tape packaging. Background Art

[0002] In the LED packaging process, tape packaging is the last process after the spectrophotometric test. Materials of different BINs are packaged separately, and materials of the same BIN are packaged on the same carrier tape. During the tape packaging process, each hole on the carrier tape corresponds to a material. There must be no shortage of materials, material flipping, or stacking. Current equipment cannot detect this. Currently, stacking and missing materials can only be detected through manual visual inspection, and there is a phenomenon of manual missed inspection. Summary of the invention

[0003] In order to overcome the above technical defects, the present invention provides a method and device for detecting stacking and leakage of tape packaging, which can improve the accuracy of detection.

[0004] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0005] A method for detecting stacking and leakage of tape packaging, comprising the steps of:

[0006] Transport materials to the conveyor track;

[0007] When the material is transported to the capacitance detection device on the conveyor track, the capacitance value of the capacitance detection device is obtained;

[0008] Judging whether there is material overlap or leakage on the feeding track according to the capacitance value;

[0009] Deal with overlapping or leaking materials.

[0010] As a further improvement of the present invention, when the capacitance value increases and the increase is greater than the set capacitance value, it is determined to be stacked material;

[0011] The stacked material is subjected to adsorption treatment.

[0012] As a further improvement of the present invention, when the capacitance value decreases and the decrease is greater than the set capacitance value, it is determined to be a material leakage;

[0013] Refill the leaked material.

[0014] As a further improvement of the present invention, the present invention further comprises the steps of:

[0015] When the conveyor track is judged to have material overlap or leakage, an alarm is issued.

[0016] As a further improvement of the present invention, the present invention further comprises the steps of:

[0017] If the conveyor track is not judged as overlapping or leaking materials, the materials will be packaged.

[0018] Compared with the prior art, the present invention has the following beneficial effects: considering that when there is no material overlap or leakage, the capacitance value of the material feed track does not change much when passing through the capacitance detection device, and when there is material overlap or leakage, the capacitance value of the material feed track will change greatly when passing through the capacitance detection device. Therefore, the capacitance value of the material when passing through the capacitance detection device during transportation is used to judge whether there is leakage or overlap, and based on the judgment result, the corresponding stacking or leakage processing is carried out in time. The detection process is fully automated, and compared with the manual detection of the prior art, it has higher accuracy and more accurate detection results.

[0019] The present invention also provides a device for detecting stacking and leakage of tape packaging, which is used to implement the above method, including: a feeding device, a capacitance detection device, a processing device, a control device, and a control device;

[0020] The material conveying device is connected to the control device and is controlled by the control device to transport the material;

[0021] The capacitance detection device is arranged on the feeding device, and is used to detect the capacitance value of the material passing through the feeding device;

[0022] The control device is connected to the capacitance detection device and the processing device, and is used to issue control information according to the capacitance value;

[0023] The processing device is arranged beside the feeding device, and is used for absorbing materials or replenishing materials according to the control information.

[0024] As a further improvement of the present invention, the feeding device comprises: a feeder, a feeding track, a ratchet wheel and a carrier belt;

[0025] The control device is connected to the ratchet and is used to control the rotation of the ratchet or to control the ratchet to stop rotating;

[0026] The feeder is located above the carrier belt and is used to place the material down to the carrier belt;

[0027] The carrier belt is located on the conveyor track, is wound around the outside of the ratchet wheel, and slides on the conveyor track when the ratchet wheel rotates.

[0028] As a further improvement of the present invention, the capacitance detection device comprises: an upper capacitance plate and a lower capacitance plate arranged opposite to each other;

[0029] The upper capacitor plate and the lower capacitor plate are both connected to a power source;

[0030] The upper capacitor plate is arranged above the carrier tape;

[0031] The lower capacitor plate is arranged on the feeding track;

[0032] The material passes between the upper capacitor plate and the lower capacitor plate.

[0033] As a further improvement of the present invention, the processing device includes: a slide rail, a mechanical arm, a vacuum pump, a vacuum pump pipe, a suction nozzle, a slider, and an infrared detection device;

[0034] The slide rail and the infrared detection device are respectively arranged on different sides of the feeding device, the slider is movably arranged on the slide rail, the mechanical arm is arranged on the slider, and the mechanical arm is arranged in the direction of the feeding device;

[0035] One end of the vacuum exhaust pipe is connected to the vacuum exhaust machine, and the other end is connected to the suction nozzle, and the suction nozzle is placed at one end of the mechanical arm close to the feeding device;

[0036] The infrared detection device is arranged opposite to the mechanical arm and is used to obtain the position information of the mechanical arm;

[0037] The control device is connected to the slider, and is used to start or shut down according to the control information. The control device controls the ratchet to rotate or stops rotating according to the control information and the position information.

[0038] As a further improvement of the present invention, the present invention further comprises: an alarm device and a packaging device;

[0039] The alarm device is connected to the control device and is used to be activated according to the control information;

[0040] The packaging device is located at the end of the feeding device and is used for packaging materials.

[0041] Compared with the prior art, the present invention has the following beneficial effects: considering that when there is no material overlap or leakage, the capacitance value of the feed track does not change much when passing through the capacitance detection device; when there is material overlap or leakage, the capacitance value of the feed track will change greatly when passing through the capacitance detection device; by arranging a capacitance detection device on the feed device, the capacitance value of the material transported on the feed device is detected, and the detection result of material overlap or leakage is obtained; based on the detection result, the processing device is controlled to process the material overlap or leakage; through the above structure, automatic detection and automatic processing of material overlap or leakage can be realized, which can greatly improve work efficiency and accuracy compared with manual detection in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0043] Figure 1 This is a flow chart of the method for detecting stacking and leakage of tape packaging described in Example 1;

[0044] Figure 2 This is a schematic diagram of the structure of the device for detecting stacking and leakage of tape packaging as described in Example 2;

[0045] Figure 3 It is a side schematic diagram of the device for detecting stacking and leakage of tape packaging according to Example 2;

[0046] Figure 4 A top view of the device for detecting stacking and leakage of tape packaging as described in Example 2;

[0047] Figure 5 This is a schematic diagram of the structure of the processing device described in Example 2;

[0048] Figure 6 This is a connection diagram of the control device and the alarm device described in Example 2;

[0049] Figure 7 This is a diagram of the working process of the equipment for detecting stacking and leakage of roll packaging as described in Example 2.

[0050] Explanation of the accompanying drawings: 1. feeding device; 11. feeder; 12. feeding track; 13. ratchet; 14. carrier tape; 2. capacitance detection device; 21. upper capacitor plate; 22. lower capacitor plate; 3. processing device; 31. slide rail; 32. robot arm; 33. vacuum pump; 34. vacuum pump pipe; 35. suction nozzle; 36. slider; 37. infrared detection device; 4. control device; 5. alarm device; 6. packaging device; 61. first fixed pulley; 62. cover tape; 63. second fixed pulley; 64. sealing knife. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0052] Example 1

[0053] This embodiment provides a method for detecting stacking and leakage of tape packaging. Figure 1 As shown, the steps include:

[0054] S1. Transport materials to the conveyor track.

[0055] S2. When the material is transported to the capacitance detection device on the conveyor track, the capacitance value of the capacitance detection device is obtained.

[0056] S3. Determine whether there is material overlap or leakage on the conveyor track based on the capacitance value. The specific detection principle is: according to the capacitance formula C=εS / 4πkd, ε is the dielectric constant, S is the facing area of ​​the capacitor plates, d is the distance between the capacitor plates, and k is the electrostatic force constant.

[0057] When the material enters the capacitance interval track, it is equivalent to inserting an insulating medium in the middle of the parallel plate capacitor, then the dielectric constant ε will increase, and the capacitance C will also increase accordingly. After testing, when a material passes through the capacitance detection device, the capacitance value change is within the set capacitance value. When the capacitance value change is not within the set capacitance value range, it can be judged as overlapping or leaking material. The set capacitance value can be set according to the actual material.

[0058] When the capacitance value increases and the increase is greater than the set capacitance value, it is determined to be stacked.

[0059] When the capacitance value decreases and the decrease is greater than the set capacitance value, it is determined to be a leakage.

[0060] S4. If material overlap occurs, the overlapped material is adsorbed; if material leakage occurs, the leaked material is supplemented.

[0061] S5. When the conveying track is judged to have material overlap or leakage, an alarm is issued.

[0062] S6. If the conveying track is not judged as overlapping or leaking materials, the materials are packaged.

[0063] To sum up, this embodiment has the following technical effects: considering that when there is no stacking or leakage, the capacitance value of the feed track does not change much when passing the capacitance detection device, and when there is stacking or leakage, the capacitance value of the feed track will change greatly when passing the capacitance detection device. Therefore, for the capacitance value of the material when it passes the capacitance detection device during transportation, this embodiment judges the capacitance value to obtain whether there is leakage or stacking, and based on the judgment result, the corresponding stacking or leakage processing is performed in time. The detection process is fully automated, and compared with the manual detection in the prior art, it has higher accuracy and more accurate detection results.

[0064] Example 2

[0065] This embodiment provides a device for detecting stacking and leakage of tape packaging, which is used to implement the method of embodiment 1. Figures 2 to 4, including: a feeding device 1, a capacitance detection device 2, a processing device 3, a control device 4, and a control device 4; the feeding device 1 is connected to the control device 4, and is controlled by the control device 4 to transport materials; the capacitance detection device 2 is arranged on the feeding device 1, and is used to detect the capacitance value of the material passing through the feeding device 1; the control device 4 is connected to the capacitance detection device 2 and the processing device 3, and is used to issue control information according to the capacitance value; the processing device 3 is arranged next to the feeding device 1, and is used to absorb materials or replenish materials according to the control information.

[0066] Furthermore, the feeding device 1 includes: a feeder 11, a feeding track 12, a ratchet 13 and a carrier belt 14; the control device 4 is connected to the ratchet 13, and is used to control the rotation of the ratchet 13 or control the ratchet 13 to stop rotating; the feeder is located above the carrier belt 14, and is used to lower the material to the carrier belt 14; the carrier belt 14 is located on the feeding track 12, and the carrier belt 14 is wrapped around the outside of the ratchet 13, and slides on the feeding track 12 under the rotation of the ratchet 13. It should be noted that there are raised points on the outer ring of the ratchet 13 and small holes on the carrier belt 14. Based on this, the carrier belt 14 can be stuck on the ratchet 13, and the ratchet 13 drives the carrier belt 14 to rotate.

[0067] The control device 4 can be implemented by PLC. For the relevant structure and control method of PLC, please refer to the prior art, which will not be described in detail here.

[0068] Specifically, the feeder 11 can be implemented by a turntable feeder 11. Every time the feeder 11 rotates an angle, a material is placed in one of the holes of the carrier belt 14. It should be noted that the rotation angle of the feeder 11 needs to match the movement speed of the carrier belt 14. This part of the content can be referred to the prior art and will not be repeated here.

[0069] The capacitance detection device includes: an upper capacitor plate 21 and a lower capacitor plate 22 which are arranged opposite to each other; the upper capacitor plate 21 and the lower capacitor plate 22 are both connected to a power supply; the upper capacitor plate 21 is arranged above the carrier 14; the lower capacitor plate 22 is arranged on the feed track 12; the area of ​​the upper capacitor plate 21 and the lower capacitor plate 22 is formed, and the material passes through the middle of the capacitance value detection area.

[0070] like Figure 5As shown, the processing device 3 includes: a slide rail 31, a mechanical arm 32, a vacuum pump 33, a vacuum pump pipe 34, a suction nozzle 35, a slider 36, and an infrared detection device 37; the slide rail 31 and the infrared detection device 37 are respectively arranged on different sides of the feeding device 1, the slider 36 is movably arranged on the slide rail 31, the mechanical arm 32 is arranged on the slider 36, and the mechanical arm 32 is arranged in the direction of the feeding device 1; the vacuum pump 33 is connected at one end of the vacuum pump pipe 34, and the other end is connected to the suction nozzle 35, and the suction nozzle 35 is placed at one end of the mechanical arm 32 close to the feeding device 1; the infrared detection device 37 is arranged opposite to the mechanical arm 32, and is used to obtain the position information of the mechanical arm 32; the control device 4 is connected to the slider 36, and is used to start or shut down according to the control information and the position information, and the control device 4 controls the ratchet 13 to rotate or controls the ratchet 13 to stop rotating according to the control information and the position information.

[0071] In the specific working process, when material overlap or leakage occurs, the control device 4 generates control information, and controls the robot arm 32 in combination with the position information. At the same time, the control device 4 controls the ratchet 13 to stop working and the carrier belt 14 to stop moving. When the robot arm 32 moves to the corresponding position, the vacuum pump 33 is turned on, and the stacked materials are adsorbed through the vacuum suction pipe 34 and the suction nozzle 35, or the leaked materials are supplemented through the vacuum suction pipe 34 and the suction nozzle 35; after the processing is completed, the robot arm 32 is reset, and the infrared detection device 37 detects and obtains the real-time position information of the robot arm 32. After receiving the position information, the control device 4 controls the ratchet 13 to resume working, and the material continues to be transported forward.

[0072] Furthermore, each time the ratchet 13 rotates a gear, it represents that the carrier 14 rotates one grid. When it stops, it defaults to step one grid again, so that each processing is at a fixed position. When stacking or leaking occurs, the control device 4 controls the ratchet 13 to roll forward one grid and stop working. At this time, the stacked or leaking carrier 14 grid enters the processing position of the robot 32, and the carrier 14 stops moving. At the same time, the control device 4 generates control information and controls the robot 32 in combination with the position information. The robot 32 moves to the corresponding processing position, turns on the vacuum pump 33, and adsorbs the stacked materials through the vacuum pump pipe 34 and the suction nozzle 35, or supplements the leaked materials through the vacuum pump pipe 34 and the suction nozzle 35; after the processing is completed, the robot 32 is reset, and the infrared detection device 37 detects and obtains the real-time position information of the robot 32. After receiving the position information, the control device 4 confirms that the robot 32 is reset, controls the ratchet 13 to continue working, and the material continues to be transported forward.

[0073] In addition, in order to warn of material leakage or overlap, such as Figure 6As shown, this embodiment also includes: an alarm device 5, which is connected to the control device 4 and is used to be activated according to the control information. The alarm device 5 can be a buzzer, a red indicator light, etc. After the feeding or adsorption operation is completed, the alarm device 5 is disconnected.

[0074] The present embodiment further includes a packaging device 6; the packaging device 6 is located above the end of the feeding device 1 and is used to package the material. The packaging device 6 includes: a first fixed pulley 61, a cover tape 62, a second fixed pulley 63 and a sealing knife 64. The cover tape 62 is wound around the outside of the first fixed pulley 61 and the second fixed pulley 63, and one end of the cover tape 62 covers the surface of the carrier tape 14. The sealing knife 64 is located on the side of the first fixed pulley 61 facing the conveying direction and is used to fix the cover tape 62 to the carrier tape 14. Next, this embodiment will be explained in conjunction with a specific implementation process. Figure 7 As shown:

[0075] The rotation of the ratchet drives the carrier to move forward. When passing through the capacitance detection device, the capacitance value of each grid of the carrier is detected. When the capacitance value decreases by more than the set capacitance value, it is determined to be material leakage, and the mechanical arm is moved to perform the material replenishment operation. When the capacitance value decreases by less than the set capacitance value, it is determined to be material stacking, and the mechanical arm is moved to perform the adsorption operation. At the same time, an alarm for material leakage or stacking is issued. If the change in capacitance value is within the set capacitance value range, it proves that there is no material leakage or stacking, and no processing is required at this time.

[0076] Taking into account that when there is no material overlap or leakage, the capacitance value of the feed track does not change much when passing the capacitance detection device, and when there is material overlap or leakage, the capacitance value of the feed track will change greatly when passing the capacitance detection device, this embodiment sets a capacitance detection device on the feed device to detect the capacitance value of the material transported on the feed device, and obtains the detection result of material overlap or leakage. Based on the detection result, the processing device is controlled to process the material overlap or leakage. Through the above structure, automatic detection and automatic processing of material overlap or leakage can be realized, which can greatly improve work efficiency and accuracy compared with manual detection in the prior art.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for detecting stacking and leakage of tape packaging, characterized in that: Includes steps: Transport materials to the conveyor track; When the material is transported to the capacitance detection device on the conveyor track, the capacitance value of the capacitance detection device is obtained; Judging whether there is material overlap or leakage on the feeding track according to the capacitance value; Deal with overlapping or leaking materials.

2. The method according to claim 1, characterized in that When the capacitance value increases and the increase is greater than the set capacitance value, it is determined to be stacked; The stacked material is subjected to adsorption treatment.

3. The method according to claim 1, characterized in that When the capacitance value decreases and the decrease is greater than the set capacitance value, it is judged as leakage; Refill the leaked material.

4. The method according to claim 1, characterized in that Also includes the steps: When the conveyor track is judged to have material overlap or leakage, an alarm is issued.

5. The method according to claim 1, characterized in that: Also includes the steps: If the conveyor track is not judged as overlapping or leaking materials, the materials will be packaged.

6. A device for detecting stacking and leakage of tape packaging, characterized in that: Used to implement the method as claimed in any one of claims 1 to 5, comprising: a feeding device, a capacitance detection device, a processing device, a control device, and a control device; The material conveying device is connected to the control device and is controlled by the control device to transport the material; The capacitance detection device is arranged on the feeding device, and is used to detect the capacitance value of the material passing through the feeding device; The control device is connected to the capacitance detection device and the processing device, and is used to issue control information according to the capacitance value; The processing device is arranged beside the feeding device, and is used for absorbing materials or replenishing materials according to the control information.

7. The device according to claim 6, characterized in that The feeding device comprises: a feeder, a feeding track, a ratchet wheel and a carrier belt; The control device is connected to the ratchet and is used to control the rotation of the ratchet or to control the ratchet to stop rotating; The feeder is located above the carrier belt and is used to place the material down to the carrier belt; The carrier belt is located on the conveyor track, is wound around the outside of the ratchet wheel, and slides on the conveyor track when the ratchet wheel rotates.

8. The device according to claim 7, characterized in that The capacitance detection device comprises: an upper capacitance plate and a lower capacitance plate which are arranged opposite to each other; The upper capacitor plate and the lower capacitor plate are both connected to a power source; The upper capacitor plate is arranged above the carrier tape; The lower capacitor plate is arranged on the feeding track; The material passes between the upper capacitor plate and the lower capacitor plate.

9. The device according to claim 6, characterized in that The processing device comprises: a slide rail, a mechanical arm, a vacuum pump, a vacuum pump pipe, a suction nozzle, a slider, and an infrared detection device; The slide rail and the infrared detection device are respectively arranged on different sides of the feeding device, the slider is movably arranged on the slide rail, the mechanical arm is arranged on the slider, and the mechanical arm is arranged in the direction of the feeding device; One end of the vacuum exhaust pipe is connected to the vacuum exhaust machine, and the other end is connected to the suction nozzle, and the suction nozzle is placed at one end of the mechanical arm close to the feeding device; The infrared detection device is arranged opposite to the mechanical arm and is used to obtain the position information of the mechanical arm; The control device is connected to the slider, and is used to start or shut down according to the control information and the position information. The control device controls the ratchet to rotate or stops rotating according to the control information and the position information.

10. The device according to any one of claims 6 to 9, characterized in that Also includes: Alarm devices and packaging devices; The alarm device is connected to the control device and is used to be activated according to the control information; The packaging device is located at the end of the feeding device and is used for packaging materials.

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