Automatic wobble plate packaging machine

Abstract

The invention discloses an automatic wobble plate packaging machine which comprises a lifting wobble plate mechanism, a double-layer conveying line and an automatic wobble plate returning mechanism, and the double-layer conveying line comprises an upper-layer conveying line and a lower-layer wobble plate returning line. And the lifting limit positions of the lifting tray placing mechanism and the automatic tray returning mechanism correspond to the height positions of the upper-layer conveying line and the lower-layer tray returning line of the double-layer conveying line respectively, and the conveying surfaces are flush. A backflow circulation line of the jig is formed by the lifting tray placing mechanism and the automatic tray returning mechanism which are arranged at the two ends of the double-layer conveying line, the situation that the overall working efficiency is low due to manual carrying is avoided, and the requirement for large-batch production and machining is met. And meanwhile, the working areas are arranged on the double-layer conveying line, so that the PCB is subjected to corresponding processing procedures such as adherence packaging and the like during conveying, the overall processing efficiency is effectively improved, the situation that a packaging film is damaged or the surface of the circuit board is scratched due to excessive picking and moving can be avoided, and the product yield is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB automated production and processing, and in particular to an automatic tray packaging machine. Background Art

[0002] There are currently two solutions on the market for connecting sorting points to close packaging machines:

[0003] 1. The sorting and counting machine performs sorting and counting, sorting qualified (OK) PCBs from defective (NG) PCBs, placing qualified PCBs on the OK table, and placing defective PCBs on the NG table. When the OK table is full, the OK table is lowered to discharge the material, and a conveying section is extended from the OK table as a temporary storage section for the OK boards, storing the qualified PCB boards that have been sorted. Then, the PCBs sorted on the sorting and counting machine are transferred to the tray of the close-fitting packaging machine by manual handling, and then the close-fitting packaging process is carried out. This solution relies on manual handling, which is labor-intensive, increases the working hours of operators, increases the overall production cost, and is inefficient, making it difficult to meet the requirements of mass production activities.

[0004] 2. The sorting and counting machine performs sorting and counting, sorting qualified (OK) PCBs and defective (NG) PCBs, placing qualified PCBs on the OK material table, and placing defective PCBs on the NG material table. When the OK material table is full, the OK material table is lowered to discharge the material, and a conveying section is extended from the OK material table as a temporary storage section for OK boards to store the qualified PCB boards that have been sorted. Then, the automatic material picking device transfers the PCBs sorted by the sorting and counting machine to the tray of the close-fitting packaging machine through mechanical structure transportation, and then performs the close-fitting packaging process. There is a problem with this solution. The close-fitting packaging tray needs to be placed with bubble film of the corresponding size in advance. If the sorted PCBs are transferred to the tray in piles, and then the plate suction device is removed, it is easy to scratch the bubble film above the tray, affecting the packaging quality, and even causing the surface of the PCB board to be scratched, resulting in poor appearance.

[0005] Therefore, the prior art has defects and needs to be improved. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatic tray packaging machine.

[0007] The technical solution of the present invention is as follows: an automatic tray packaging machine is provided, comprising: a lifting tray mechanism arranged in the OK material table area of ​​a sorting and counting machine, a double-layer transport line arranged at the rear end of the lifting tray mechanism, and an automatic tray return mechanism arranged at the rear end of the double-layer transport line, the double-layer transport line comprises an upper transport line and a lower tray return line, the lifting and lowering limit positions of the lifting tray mechanism and the automatic tray return mechanism respectively correspond to the height positions of the upper transport line and the lower tray return line of the double-layer transport line and the transport surface is flush, a processing area is arranged in the middle section of the upper transport line of the double-layer transport line, processing equipment is arranged beside the processing area, and the processing equipment performs processing operations on the upper transport line.

[0008] Furthermore, the sorting and counting machine is provided with a material picking robot corresponding to the lifting and swinging plate mechanism, and the material picking robot comprises: a multi-axis moving mechanism arranged beside the lifting and swinging plate mechanism, and a gripper unit arranged on the output end of the multi-axis moving mechanism, the multi-axis moving mechanism drives the gripper unit to move, the gripper unit adopts a plurality of pneumatic clamps or a plurality of vacuum suction cups, and the multi-axis moving mechanism drives the gripper unit to move to the top of the lifting and swinging plate mechanism for sorting and placement.

[0009] Furthermore, a visual recognition module is provided on the output end of the multi-axis moving mechanism, the multi-axis moving mechanism drives the visual recognition module to move, and the visual recognition module is suspended above the upper transport line.

[0010] Furthermore, the lifting and lowering mechanism of the swing plate includes: a swing plate fixing seat, a swing plate lifting motor arranged on the swing plate fixing seat, a synchronous belt pulley transmission mechanism connected to the output end of the swing plate lifting motor, screws arranged on both sides of the swing plate fixing seat, a screw slider sleeved on the screw, a lifting frame connected to the screw sliders on both sides, and a lifting and transporting line arranged on the lifting frame, the input end of the synchronous belt pulley transmission mechanism is connected to the output end of the swing plate lifting motor, and the output ends on both sides of the synchronous belt pulley transmission mechanism are respectively connected to the screws on both sides, and the swing plate lifting motor drives the screws on both sides to rotate through the synchronous belt pulley transmission mechanism, thereby driving the screw slider to move up and down.

[0011] Furthermore, the automatic return mechanism includes: a return frame connected to the double-layer transport line, a return lift platform that moves up and down in the middle of the return frame, a return lift motor arranged at the bottom of the return lift platform, an output gear connected to the output end of the return lift motor, and a rack arranged on the return frame, the output gear and the rack are meshed with each other, and a return conveyor line is arranged on the return lift platform.

[0012] Furthermore, the processing equipment includes a close packaging mechanism, which includes a feed line, a heating zone and a discharge line arranged beside the double-layer transport line, and the feed line, the heating zone and the discharge line are arranged in sequence along the conveying direction of the upper transport line.

[0013] Furthermore, the processing equipment also includes an automatic desiccant placement mechanism, and the automatic desiccant placement mechanism is arranged beside the feeding line.

[0014] Furthermore, the processing equipment also includes a humidity card automatic placement mechanism, and the humidity card automatic placement mechanism is arranged beside the feeding line.

[0015] By adopting the above scheme, the present invention forms a reflux circulation line for the jig by setting the lifting and swinging plate mechanism and the automatic return plate mechanism at both ends of the double-layer transport line. This setting mode has the following advantages:

[0016] 1. Reduce operational errors in manual plating:

[0017] The automatic sorting and tray placement method can completely eliminate common errors in the manual tray placement process through a fully automated operation process, such as PCB board mixing, label information errors or omissions, etc. Especially for products with high precision requirements, such as new energy vehicle boards, HDI boards, 5G / 6G communication boards and high-layer boards, the automatic tray placement and error prevention can ensure that each board is accurately handled throughout the packaging process, avoiding quality problems caused by manual negligence, and ensuring that the product meets the strict standards of end customers.

[0018] 2. Significantly improve packaging efficiency:

[0019] Automatic tray placement technology not only reduces the number of manual operations, but also greatly improves packaging efficiency. Fully automated operations make the sorting, stacking, and packaging of PCB boards smoother and more efficient, reducing friction, scratches, and other problems caused by manual handling or placement. By reducing manual intervention, companies can significantly increase production speed, especially under large-scale, high-standard production requirements. The automatic tray placement system can ensure that production tasks are completed continuously and efficiently, avoiding production bottlenecks.

[0020] 3. Improve product safety:

[0021] When dealing with circuit boards with different functional characteristics and complexity requirements, intelligent sorting and automatic tray placement can ensure that each batch of products is packaged accurately and uniformly, and can avoid problems such as PCB damage and oxidation that may be caused by manual handling. For boards with extremely high product quality requirements, such as new energy vehicle boards or 5G / 6G communication boards, automatic tray placement technology can ensure that they receive the highest degree of protection during the packaging process, ensuring the safety and final quality of the product.

[0022] 4. Error proofing involves:

[0023] Automatic tray placement can achieve error-proofing and fool-proofing functions, ensuring that each PCB board is correctly identified and processed during packaging. By automatically reading and verifying the unique identification code of the board, the system can automatically avoid label errors, missing information and other problems during the entire packaging process. Even complex multi-batch, multi-model circuit boards can be accurately processed by the system to ensure that each board is correctly sorted and packaged, avoiding the risks that may be caused by manual intervention.

[0024] 5. Reduce packaging costs and risks:

[0025] Automatic tray placement not only reduces reliance on manual operations through fully automated processes, but also significantly reduces the risks of packaging rework and returns caused by manual errors. By reducing the complexity and labor intensity of manual operations, companies can reduce labor costs and reduce potential economic losses caused by packaging errors. In addition, the efficient operation and error-proofing functions of automatic tray placement also reduce the time for maintenance and adjustment of machines, improve the utilization rate of equipment, and enable the entire production line to operate stably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention.

[0027] Figure 2 It is a structural diagram of the double-layer transport line and the automatic return mechanism.

[0028] Figure 3 This is a structural diagram of the lifting and lowering mechanism of the sorting and counting machine. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 3 The present invention provides an automatic tray packaging machine, comprising: a lifting tray mechanism 2 arranged in an OK material table area of ​​a sorting and counting machine 1, a double-layer transportation line 3 arranged at the rear end of the lifting tray mechanism 2, and an automatic tray return mechanism 4 arranged at the rear end of the double-layer transportation line 3, the double-layer transportation line 3 includes an upper transportation line 31 and a lower tray return line 32, the lifting and lowering limit positions of the lifting tray mechanism 2 and the automatic tray return mechanism 4 respectively correspond to the height positions of the upper transportation line 31 and the lower tray return line 32 of the double-layer transportation line 3 and the transportation surface is flush, the middle section of the upper transportation line 31 of the double-layer transportation line 3 is provided with a processing area 30, and the side of the processing area 30 is provided with a processing equipment 5, and the processing equipment 5 performs processing operations on the upper transportation line 31.

[0031] During operation, the sorting and counting machine 1 inspects and sorts the PCB boards processed in the upstream equipment, and then places qualified products in the jig on the lifting and swinging plate mechanism 2 located in the OK material table area. When the PCB board products in the jig are full, the lifting and swinging plate mechanism 2 transports the jig containing the PCB boards to the double-layer transport line 3, and transports the jig forward through the double-layer transport line 3. When the upper transport line 31 of the double-layer transport line 3 lifts and transports the jig full of PCB board products to the processing area 30, the PCB boards on the jig are processed by the processing equipment 5, and then the jig that has completed the PCB board processing is transported to the automatic return plate mechanism 4, and the processed PCB boards are picked up and moved out manually or by a robot. After all the PCB boards on the jig are discharged, the automatic return mechanism 4 moves the empty jig downward, so that the automatic return mechanism 4 corresponds to the height of the lower return line 32, and transfers the empty jig to the lower return line 32, and transports the empty jig toward the lifting and swinging mechanism 2 through the lower return line 32. At this time, the lifting and swinging mechanism 2 descends to the height corresponding to the lower return line 32, so as to move the empty jig to the lifting and swinging mechanism 2, and then the lifting and swinging mechanism 2 lifts the empty jig upward, so that the sorting and counting machine 1 can transfer the next batch of qualified PCB boards to the empty jig for placement on the plate, and so on.

[0032] In some embodiments, see Figure 3 The sorting and counting machine 1 is provided with a material picking robot 11 corresponding to the lifting and swinging plate mechanism 2. The material picking robot 11 includes: a multi-axis moving mechanism 111 arranged beside the lifting and swinging plate mechanism 2, and a gripper unit 112 arranged on the output end of the multi-axis moving mechanism 111. The multi-axis moving mechanism 111 drives the gripper unit 112 to move. The gripper unit 112 adopts a plurality of pneumatic clamps or a plurality of vacuum suction cups. The multi-axis moving mechanism 111 drives the gripper unit 112 to move to the top of the lifting and swinging plate mechanism 2 for sorting and placement.

[0033] By setting a material picking robot 11 at the sorting and counting machine 1, the gripper unit 112 is moved to the PCB board product to be sorted through the multi-axis moving mechanism 111. When the current PCB board product is identified as a qualified product, the PCB board is picked up by the gripper unit 112, and the gripper unit 112 is moved above the lifting and swinging plate mechanism 2 through the multi-axis moving mechanism 111, and the picked PCB board is placed at the corresponding placement position on the jig for sorting and discharging.

[0034] In some optional embodiments, the gripper unit 112 uses a pneumatic gripper, which is driven by a cylinder to expand and clamp the pneumatic gripper, thereby effectively clamping the PCB board from both sides of the PCB board, so as to facilitate picking up the PCB board from the sorting and counting machine 1. The gripper unit 112 is then driven by the multi-axis moving mechanism 111 to move above the lifting and swinging machine, and the PCB board is released on the fixture to complete the picking, moving and placement of the PCB board.

[0035] In some optional embodiments, the gripper unit 112 uses a vacuum suction cup, and forms a negative pressure at the vacuum suction cup to suck the upper surface of the PCB board, thereby picking up the PCB board on the sorting and counting machine 1. The gripper unit 112 is then driven by the multi-axis moving mechanism 111 to move above the lifting and swinging machine, and the PCB board is released on the fixture to complete the picking, moving and placement of the PCB board.

[0036] In some embodiments, a visual recognition module 113 is provided on the output end of the multi-axis moving mechanism 111, and the multi-axis moving mechanism 111 drives the visual recognition module 113 to move, and the visual recognition module 113 is suspended above the upper transport line 31. Before the PCB board is clamped, the image of the PCB board is acquired by the visual recognition module 113, and the image information is sent to the control system, so as to identify and judge the image information, thereby identifying whether the PCB board has a defective condition. If the PCB board product that has not detected a defective condition is judged as a qualified product, the PCB board is moved to the fixture on the lifting and swinging plate mechanism 2 by the material picking robot 11. When a defective condition is detected on the current PCB board, the PCB board is moved to the NG material table area of ​​the sorting and counting machine 1 by the material picking robot 11.

[0037] In some embodiments, the lifting and lowering swing plate mechanism 2 includes: a swing plate fixing seat 21, a swing plate lifting motor 22 arranged on the swing plate fixing seat 21, a synchronous belt pulley transmission mechanism 23 connected to the output end of the swing plate lifting motor 22, screws 24 arranged on both sides of the swing plate fixing seat 21, a screw slider 25 sleeved on the screw 24, a lifting frame 26 connected to the screw sliders 25 on both sides, and a lifting and lowering transportation line 27 arranged on the lifting frame 26, the input end of the synchronous belt pulley transmission mechanism 23 is connected to the output end of the swing plate lifting motor 22, and the output ends on both sides of the synchronous belt pulley transmission mechanism 23 are respectively connected to the screws 24 on both sides, and the swing plate lifting motor 22 drives the screws 24 on both sides to rotate through the synchronous belt pulley transmission mechanism 23, thereby driving the screw sliders 25 to move up and down.

[0038] When the number of PCB boards placed in the jig on the lifting and swinging plate mechanism 2 has reached the upper limit, the automatic lifting and transporting line 27 is used to send the fully loaded jig to the upper transporting line 31 of the double-layer transporting line 3, so as to realize the subsequent feeding and processing of the PCB boards. Then the swinging plate lifting motor 22 is started, and the screws 24 on both sides are driven to rotate through the synchronous belt pulley transmission mechanism 23, so that the screw slider 25 moves downward along the screw 24, and the lifting and transporting line 27 is lowered to a height position flush with the lower return plate line 32. The lower return plate line 32 moves the empty jig to the lifting and transporting line 27, and then the swinging plate lifting motor 22 is started in the reverse direction, and the screws 24 on both sides are driven to rotate through the synchronous belt pulley transmission mechanism 23, so that the screw slider 25 moves upward along the screw 24, and the lifting and transporting line 27 is raised to a height position flush with the upper transporting line 31, which is convenient for the sorting and placement of the next group of PCB boards.

[0039] In some optional embodiments, a plurality of guide posts 28 are provided on the side of the lead screw 24 and are parallel to the lead screw 24. The guide posts 28 pass through the lifting frame 26, so that when the lifting frame 26 is lifted and lowered along with the lead screw slider 25, the guide posts 28 provide a guiding function for the lifting frame 26, guide the moving direction of the lifting frame 26, and avoid the occurrence of deviation. The guide posts 28 are provided with corresponding photoelectric sensors 29 at the upper limit position and the lower limit position of the lifting and lowering movement of the lifting frame 26, respectively, so that when the lifting frame 26 moves to the upper limit position or the lower limit position, the photoelectric sensors 29 can send a corresponding detection signal to the control system, so that the control system sends a corresponding control signal to the swing plate lifting motor 22, and the lifting frame 26 stops at the corresponding height position, so that the lifting and transporting line 27 can be kept at a height position flush with the upper transporting line 31 or the lower return plate line 32.

[0040] In some embodiments, see Figure 2 The automatic return mechanism 4 includes: a return frame 41 connected to the double-layer transport line 3, a return lift 42 that moves up and down in the middle of the return frame 41, a return lift motor 43 arranged at the bottom of the return lift 42, an output gear 44 connected to the output end of the return lift motor 43, and a rack 45 arranged on the return frame 41, the output gear 44 and the rack 45 are meshed with each other, and a return conveyor line 46 is arranged on the return lift 42.

[0041] When the fully loaded jig is moved to the automatic return tray mechanism 4, the PCB board on the jig is unloaded by an external manipulator. Alternatively, on the double-layer transport line 3, the PCB board on the jig is unloaded by an external manipulator, and then the empty jig is moved to the automatic return tray mechanism 4. Then the return tray lifting motor 43 is started, so that the output gear 44 starts to rotate, so that the return tray conveyor line 46 of the return tray lifting platform 42 is lowered to a height position flush with the lower return tray line 32 through the meshing of the output gear 44 and the rack 45, and the return tray conveyor line 46 is started to move the empty jig to the lower return tray line 32. Then the return tray lifting motor 43 is started in the reverse direction, so that the output gear 44 rotates in the opposite direction, so that the return tray conveyor line 46 on the return tray lifting platform 42 is raised to a height position flush with the upper transport line 31 through the meshing of the output gear 44 and the rack 45.

[0042] In some embodiments, the processing equipment 5 includes a close packaging mechanism, which includes a feed line 51, a heating zone 52, and a discharge line 53 arranged beside the double-layer transport line 3, and the feed line 51, the heating zone 52, and the discharge line 53 are arranged in sequence along the transport direction of the upper transport line 31. The materials required for close packaging are transported to the jig through the feed line 51, the packaging film is covered on the PCB board, and the packaging film is heated and heated in the heating zone 52, so that the packaging film shrinks due to the heat, and is tightly wrapped on the PCB board.

[0043] In some embodiments, the processing equipment 5 further includes a desiccant automatic placement mechanism, which is disposed beside the feed line 51. Before close packaging, the desiccant is placed on the PCB board on the jig or beside the PCB board by the desiccant automatic placement mechanism, so that after close packaging, the desiccant and the PCB board are wrapped in the packaging film together, so that the desiccant absorbs the moisture in the packaging film through the desiccant to prevent the moisture from adhering to the PCB board and causing damage to the surface of the PCB board or the circuit components on the PCB board.

[0044] In some embodiments, the processing equipment 5 further includes a humidity card automatic placement mechanism, which is disposed beside the feed line 51. Before close packaging, the humidity card is placed on the PCB board on the fixture or beside the PCB board by the humidity card automatic placement mechanism, so that after close packaging, the humidity card and the PCB board are wrapped in the packaging film together, so that the humidity in the packaging film is detected by the humidity card to avoid damage to the surface of the PCB board or circuit components on the PCB board due to excessive moisture in the packaging film.

[0045] In summary, the present invention forms a reflux circulation line for the jig by setting up a lifting and swinging plate mechanism and an automatic return plate mechanism at both ends of the double-layer transport line, thereby avoiding the overall low work efficiency caused by manual handling and meeting the requirements of mass production and processing. At the same time, by setting up a working area on the double-layer transport line, the PCB board can be subjected to corresponding processing procedures such as close packaging while being transported, effectively improving the overall processing efficiency, and avoiding the situation where the packaging film is damaged or the circuit board surface is scratched due to excessive picking and moving, thereby ensuring the product yield.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic plate packaging machine, characterized in that: include: A lifting and swinging plate mechanism is arranged in the OK material table area of ​​the sorting and counting machine, a double-layer transportation line is arranged at the rear end of the lifting and swinging plate mechanism, and an automatic return plate mechanism is arranged at the rear end of the double-layer transportation line, the double-layer transportation line includes an upper transportation line and a lower return plate line, the lifting and lowering limit positions of the lifting and swinging plate mechanism and the automatic return plate mechanism respectively correspond to the height positions of the upper transportation line and the lower return plate line of the double-layer transportation line and are flush with the transportation surface, a processing area is arranged in the middle section of the upper transportation line of the double-layer transportation line, processing equipment is arranged beside the processing area, and the processing equipment performs processing operations on the upper transportation line.

2. The automatic plate packaging machine according to claim 1, characterized in that: The sorting and counting machine is provided with a material picking robot corresponding to the lifting and swinging plate mechanism, and the material picking robot comprises: a multi-axis moving mechanism arranged beside the lifting and swinging plate mechanism, and a gripper unit arranged on the output end of the multi-axis moving mechanism, the multi-axis moving mechanism drives the gripper unit to move, the gripper unit adopts a plurality of pneumatic clamps or a plurality of vacuum suction cups, and the multi-axis moving mechanism drives the gripper unit to move above the lifting and swinging plate mechanism for sorting and placement.

3. The automatic plate packaging machine according to claim 2, characterized in that: A visual recognition module is arranged on the output end of the multi-axis moving mechanism, and the multi-axis moving mechanism drives the visual recognition module to move, and the visual recognition module is suspended above the upper transport line.

4. The automatic plate packaging machine according to claim 1, characterized in that: The lifting and lowering mechanism of the swing plate includes: a swing plate fixing seat, a swing plate lifting motor arranged on the swing plate fixing seat, a synchronous belt pulley transmission mechanism connected to the output end of the swing plate lifting motor, lead screws arranged on both sides of the swing plate fixing seat, a lead screw slider sleeved on the lead screw, a lifting frame connected to the lead screw sliders on both sides, and a lifting and lowering transportation line arranged on the lifting frame, the input end of the synchronous belt pulley transmission mechanism is connected to the output end of the swing plate lifting motor, and the output ends on both sides of the synchronous belt pulley transmission mechanism are respectively connected to the lead screws on both sides, and the swing plate lifting motor drives the lead screws on both sides to rotate through the synchronous belt pulley transmission mechanism, thereby driving the lead screw slider to move up and down.

5. The automatic plate packaging machine according to claim 1, characterized in that: The automatic return mechanism includes: a return frame connected to the double-layer transport line, a return lift platform that moves up and down in the middle of the return frame, a return lift motor arranged at the bottom of the return lift platform, an output gear connected to the output end of the return lift motor, and a rack arranged on the return frame, the output gear and the rack are meshed with each other, and a return conveyor line is arranged on the return lift platform.

6. The automatic plate packaging machine according to claim 1, characterized in that: The processing equipment includes a close packaging mechanism, which includes a feed line, a heating zone and a discharge line arranged beside the double-layer transport line. The feed line, the heating zone and the discharge line are arranged in sequence along the conveying direction of the upper transport line.

7. The automatic plate packaging machine according to claim 6, characterized in that: The processing equipment also includes a desiccant automatic placement mechanism, which is arranged beside the feeding line.

8. The automatic plate packaging machine according to claim 6, characterized in that: The processing equipment also includes a humidity card automatic placement mechanism, and the humidity card automatic placement mechanism is arranged beside the feeding line.

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