A production line for automatic sorting and discharging of PCB boards after slitting

Abstract

The present invention provides an automatic classification and unloading production line for PCB boards after slitting, which relates to a classification and unloading production line, comprising a slitting product transition conveyor line, a tray loading line, a tray unloading line and at least one group of NG lines which are arranged side by side, wherein one end of the tray loading line, the tray unloading line and the NG line is provided with a group of tray transition lines, and the product unloading line is arranged across the slitting product transition conveyor line, the tray loading line, the tray unloading line and the NG line on both sides; the slitting product transition conveyor line is used for receiving PCB board component subunits after slitting and conveying them to the bottom of the product unloading line, the tray loading line is used for sequentially loading stacked trays onto the transition line, the transition line is used for respectively conveying the received trays to the tray unloading line and the NG line, and the product unloading line is used for correspondingly placing the PCB board component subunits into trays in the tray unloading line or the NG line. The present invention has reasonable structural distribution, better unloading efficiency and better unloading stability.

Description

Technical Field

[0001] The invention relates to a classification discharging production line, in particular to an automatic classification discharging production line after PCB board slitting. Background Art

[0002] In the existing PCB board production line, after the PCB board is cut, the cut sub-units and frames need to be classified and placed in different discharge lines. Trays for coding are arranged on the discharge lines. In the prior art, the products and pallets are generally transported by robots, such as a patented board separation device and board separation method (patent number: CN114620436B). Not only is the operation time-consuming, which greatly reduces the discharge efficiency, but also if the robot is used for long-distance transportation, there is a risk of materials or pallets falling. The equipment cost of the robot itself is also high. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide an automatic classification and unloading production line for PCB boards after slitting. By setting reasonably distributed transition components, automatic classification loading of the tray and corresponding classification unloading of the PCB board component sub-units after slitting can be achieved, which has better unloading efficiency and better unloading stability.

[0004] The present invention provides the following technical solutions:

[0005] A production line for automatic sorting and unloading after PCB board slitting, comprising a slitting product transition conveyor line, a tray loading line, a tray unloading line and at least one group of NG material lines arranged side by side, wherein one end of the tray loading line, the tray unloading line and the NG material line is further provided with a group of tray transition lines, wherein the conveying direction of the tray transition lines is perpendicular to the conveying direction of the tray loading line, the tray unloading line and the NG material line and is arranged parallel to the conveying direction of the product unloading line, wherein at least one group of the product unloading lines is provided and is arranged as a span on both sides of the slitting product transition conveyor line, the tray loading line, the tray unloading line and the NG material line;

[0006] The slitting product transition conveyor line is used to receive the slitting PCB board component sub-units and convey them to the bottom of the product unloading line. The tray loading line is used to load the stacked trays onto the transition line in sequence. The transition line is used to convey the received trays to the tray unloading line and the NG line respectively. The product unloading line is used to place the PCB board component sub-units sucked from the slitting product transition conveyor line into the trays in the tray unloading line or the NG line.

[0007] At this point, automatic classification and loading of pallets can be realized. During this process, there is no need for the participation of complex robots, so there is no risk of pallets falling, so the stability and discharge efficiency can be greatly improved.

[0008] Preferably, the pallet loading line comprises two sets of relatively distributed support grooves 1 and a pushing member 1 and a clamping pushing member 1 located between the support grooves 1, four sets of material guide grooves 1 and four sets of pushing blocks 1 driven back and forth by a support cylinder 1 are fixed above the material receiving end of the support groove 1, the four sets of material guide grooves 1 are used to limit the positions of the edges and corners of the pallets for stacking the pallets, the pushing member 1 is used to support the stacked pallets and support them to descend so that the pallet at the bottom is placed on the support groove 1, the pushing block 1 is used to be driven by the support cylinder 1 to extend out when the pallet descends one layer height so as to be supported above the pallet at the bottom, so as to separate the stacked pallet from the pallet at the bottom, and the clamping pushing member 1 is used to push the pallet at the bottom placed on the support groove 1 to the pallet transition line;

[0009] At this point, the support channel only plays the role of docking with the pallet transition line and supporting and limiting the pallet, and its combination with the independent pushing part and clamping push part realizes the pallet separation and conveying actions. The various components are more independent of each other, the structural cost is lower, and it is also more convenient for later maintenance.

[0010] Preferably, the pushing member includes a pushing cylinder and a pushing block installed at a driving end of the pushing cylinder, the pushing block is used to push the stacked pallet upward along a material guide trough under the drive of the pushing cylinder, the clamping member includes a slide rail, a slider slidably configured on the slide rail, and a supporting plate installed on the slider and extending toward one end of the pallet transition line, a conveyor belt driven to rotate by a motor is installed on one side of the slide rail, and a connecting plate fixed to the conveyor belt is connected to one side of the supporting plate, and the connecting plate is used to drive the supporting plate supporting the pallet to slide into the pallet transition line. Because the supporting plate extends toward one end of the pallet transition line, It can ensure that the pallet transition line and the slide rail do not interfere with each other, and the support plate 1 can also slide to the pallet transition line to be taken over by the pallet transition line, and it can also ensure that the taking over of the pallet transition line is unpowered to reduce the taking over cost. Two sets of clamps are installed at both ends of the support plate 1 through hinges. The clamps are driven by a clamping cylinder 1 hinged under the support plate 1 to rotate and engage to clamp the pallet, and after driving the pallet to be placed on the docking pallet transition line, they expand outward to relax the clamping of the pallet and rotate to below the level of the pallet. At this point, it can be ensured that when the support plate 1 returns, the clamps will not interfere with the pallet entering the pallet transition line, so that the support plate 1 can return smoothly.

[0011] Preferably, the pallet discharge line and the NG material line have the same structure, which are respectively used to receive qualified PCB board component subunits and to receive unqualified PCB board component subunits, and both include two groups of relatively distributed support grooves 2 and two pushing members and two clamping push members located between the two support grooves. The two clamping push members are used to clamp the pallet on the pallet transition line and move it onto the two support grooves. Four groups of guide grooves 2 and four groups of pushing blocks 2 driven back and forth by two support cylinders are fixed above the two support grooves. The four groups of guide grooves 2 are used to limit the positions of the pallets at the corners for stacking the pallets. The two pushing members are used to support the pallet on the two support grooves to rise along the two guide grooves until it rises above the two pushing blocks so as to support the limit of the two pushing blocks that are extended again.

[0012] Preferably, the second pushing member includes a second pushing cylinder and a second pushing block installed at the driving end of the second pushing cylinder, the second pushing block is used to push the pallet upward along the second material guide groove under the drive of the second pushing cylinder, the second clamping pushing member includes a second slide rail, a second slider slidably configured on the second slide rail, and a second supporting plate installed on the second slider and extending toward one end of the pallet transition line, a second conveyor belt driven to rotate by a second motor is installed on one side of the second slide rail, a second connecting plate fixed on the second conveyor belt is connected to one side of the second supporting plate, the second connecting plate is used to support the pallet transitioned from the pallet transition line and drive it to be sent from the pallet transition line to the second slide rail, Because the support plate 2 extends toward one end of the pallet transition line, it can ensure that the pallet transition line and the slide rail 2 do not interfere with each other, and the support plate 2 can also slide to the pallet transition line to be taken over by the pallet transition line, and it can also ensure that the taking over of the pallet transition line is unpowered to reduce the taking over cost. Two sets of chucks 2 are hingedly installed at both ends of the support plate 2. One set of chucks 2 is driven by the clamping cylinder 2 hinged under the support plate 2 to rotate and expand outward, and pass under the pallet on the pallet transition line, and is used to cooperate with the other set of chucks 2 placed on both sides of the pallet, and rotates again under the drive of the clamping cylinder 2 to clamp and position the pallet to bring the pallet onto the slide rail 2.

[0013] Preferably, the pallet transition line comprises two groups of transition channels driven by a transition linear module, and the transition channels are used to dock with the first support channel under the drive of the transition linear module to receive the sliding pallet or dock with the second support channel to clamp the received pallet by the second clamping and pushing member and send it into the second support channel;

[0014] So far, in actual operation, the assembly line for automatic pallet receiving and loading is as follows: first, the stacked pallets are placed at the receiving end of the pallet loading line, and the receiving end of the pallet loading line is within the limit area of ​​the four groups of guide slots. When automatic loading of the pallet is required, it is only necessary to start the push cylinder 1 in the pallet loading line, so that the push block 1 is supported on the bottom layer of the pallet, and the push block 1 is retracted, so that the push block 1 drives the pallet to descend, and when descending one pallet layer height, the push block 1 is extended again to support the bottom pallet Between the pallet of the second-to-last layer, the top material block 1 continues to drive the bottom pallet down until the pallet is placed on the support channel 1, and then the clamping and pushing member 1 drives the pallet close to the pallet transition line until the pallet is sent into the docking transition channel. At this time, the transition channel can be docked with the support channel 2 under the drive of the transition linear module, and then the clamping and pushing member 2 can drive the pallet to slide under the product unloading line. When there are multiple NG material lines, a pallet is pushed by the clamping and pushing member 2 under the product unloading line of each NG material line to receive NG products.

[0015] And because the pallets for stacking and coding are the same, they have slots for placing multiple groups of PCB board component sub-units. The qualified PCB board component sub-units are placed one by one in the pallet slots on the pallet unloading line, and the unqualified PCB board component sub-units are placed one by one in the pallet slots on the NG material line. Multiple groups of NG material lines can be set up, each group is used to pack different types of unqualified products. For example, one NG material line can accommodate unqualified products for cutting, and another NG material line can accommodate unqualified products for packaging. In the process of placing, the clamping and pushing part 2 is also used to push the pallet to shift, so that after a row of slots is full, the next row of slots can be moved to the bottom of the product unloading line. The overall flexibility is better, the use is more convenient, and the maintenance cost is also lower. The pallet can be continuously transported and waited during the whole process, so the time of material discharge transition can be greatly shortened.

[0016] Preferably, the product unloading line includes a group of gantries that span across the slitting product transition conveyor line, the pallet loading line, the pallet discharging line and the NG material line. A group of transverse linear modules are arranged on the crossbeam of the gantry, and its driving end drives a group of adsorption groups that slide back and forth along the transverse direction. Here, since the slitting product transition conveyor line is to provide a discharging transition buffer position for discharging, when the clamping and pushing member pushes and pulls the pallets on the pallet discharging line and the NG material line to the bottom of the gantry, they are respectively at the qualified or unqualified product receiving position. At this time, the transition buffer position and the product receiving position are on the same straight line. When the products are classified and discharged, it can be ensured to be accurate and fast, thereby saving the time of the intermediate transition, thereby improving the discharging efficiency.

[0017] Preferably, the adsorption group 1 includes a plurality of groups of buffer suction heads corresponding to a row of component subunits adsorbed after the PCB board is cut, and the top of each group of buffer suction heads is connected to a group of hollow shaft rods, the ends of the hollow shaft rods are connected to the adsorption tubes, and the connecting blocks are installed outside thereof to connect to a group of lifting belts, and the lifting belts are installed on the adsorption mounting frame through pulleys, and the buffer suction heads are driven to rise and fall under the drive of the driving motor;

[0018] The connecting block is installed outside the hollow shaft rod for transfer, and a rotating motor is also installed on the adsorption mounting frame. The rotating motor is connected to a group of transfer pulleys installed outside the hollow shaft rod through a rotating belt drive, and the pulleys are installed outside the hollow shaft rod through a key connection. The adsorption mounting frame is also installed with a group of limiting pressure plates that press the transfer pulleys axially against the adsorption mounting frame. Therefore, by starting the rotating motor, the angle of the adsorption element subunit placed in the tray slot cavity can be readjusted, and at the same time, it will not affect the lifting and lowering of each buffer suction head driven by the hollow shaft rod.

[0019] Preferably, one end of the slitting product transition conveyor line is located below the gantry one, for providing a discharging transition buffer position for discharging, and the other end is located below the gantry two, for providing a slitting transition buffer position for loading the slitting products. The gantry two is connected to a group of adsorption groups two by driving through the transverse linear module two, and the slitting product transition conveyor line includes two groups of driving linear modules, and the driving ends of the two groups of driving linear modules are respectively connected to a group of lifting slideways through a mounting plate, the two groups of lifting slideways are arranged opposite to each other, and each slidingly mounted with a group of adsorption fixtures for aligning to the bottom of the adsorption group one, and the mounting plate is also equipped with a group of lifting drive cylinders, the lifting drive cylinders are connected to the adsorption fixture drive to realize the upper and lower dislocation distribution of the two groups of adsorption fixtures when the movements overlap, and the adsorption fixture is arranged with an adsorption groove for aligning a group of component subunits after slitting of the PCB board, and is used for transporting materials back and forth between the discharging transition buffer position and the slitting transition buffer position;

[0020] At this point, the slitting product transition conveyor line can realize the simultaneous loading and unloading of slitting products, thereby improving efficiency.

[0021] Preferably, the adsorption group 2 is used to transfer the PCB board cut on the slitting jig to the slitting transition buffer position to prepare for the adsorption jig to receive the material, which includes a suction cup 2 driven to rise and fall by an adsorption cylinder 1, and the suction cup 2 is provided with a frame suction nozzle and a sub-unit suction nozzle for corresponding to a group of PCB board cuts, the frame suction nozzle is used to adsorb a group of frames after PCB board cuts, and the sub-unit suction nozzle is used to adsorb each PCB board component sub-unit in the corresponding frame, and a group of frame waste boxes are also arranged between the slitting jig and the slitting product transition conveyor line, and when the suction cup 2 moves to the top of the frame waste box, the frame suction nozzle releases the adsorption so that the frame of the PCB board cut is separated from the frame waste box;

[0022] At this point, after a group of PCB boards are cut on the cutting jig, the adsorption group 2 adsorbs the cut PCB boards, first passes through the frame waste box, and performs the blanking of the frame after the PCB board is cut, and then moves to the cutting transition buffer position, and a group of adsorption jigs moves to the bottom of the suction cup 2 of the transition buffer position, corresponding to the component sub-unit after the PCB board is cut, and the adsorption jig then moves to the discharge transition buffer position for the adsorption group 1 to adsorb and discharge. Since the adsorption group 1 needs to discharge the component sub-units of the PCB board one by one after the PCB board is cut, it takes a long time, so another group of adsorption jigs can be synchronized to the cutting transition buffer position to receive the component sub-unit again.

[0023] The beneficial effects of the present invention are:

[0024] In the present invention, after a group of PCB boards are cut on the cutting jig, the adsorption group 2 adsorbs the cut PCB boards, passes through the frame waste box first, and performs the blanking of the frame after the PCB board is cut, and then moves to the cutting transition buffer position, and a group of adsorption jigs moves to the bottom of the suction cup 2 of the transition buffer position, correspondingly receiving the component sub-unit after the PCB board is cut, and then the adsorption jig moves to the discharge transition buffer position for the adsorption group 1 to adsorb and discharge. Since the adsorption group 1 needs to discharge the component sub-units after the PCB board is cut one by one, it takes a long time, so another group of adsorption jigs can be synchronized to the cutting transition buffer position to receive the component sub-unit again;

[0025] At the same time, the pallet also completes the loading operation synchronously. Specifically, first, the stacked pallets are placed at the receiving end of the pallet loading line. The receiving end of the pallet loading line is within the limiting area of ​​the four groups of guide slots. When automatic loading of the pallet is required, only the push cylinder 1 in the pallet loading line needs to be started, so that the push block 1 is supported on the bottom layer of the pallet, and the push block 1 is retracted, so that the push block 1 drives the pallet to descend, and when descending by one pallet layer height, the push block 1 extends out again to support between the bottom layer pallet and the second to last layer pallet, and the push block 1 continues to drive the bottom layer pallet to descend until the pallet is placed on the support channel 1, and then the clamping and pushing member 1 drives the pallet close to the pallet transition line until the pallet is sent into the docking transition channel, at this time, the transition channel can be docked with the support channel 2 under the drive of the transition linear module, and then the clamping and pushing member 2 can drive the pallet to slide below the product unloading line, and when there are multiple NG material lines, a pallet is pushed by the clamping and pushing member 2 below the product unloading line of each NG material line to receive NG products;

[0026] And because the stacked material pallets are the same, they have slots for placing multiple groups of PCB component sub-units. The qualified PCB component sub-units are placed one by one in the tray slots on the tray outfeed line, and the unqualified PCB component sub-units are placed one by one in the tray slots on the NG material line. The NG material line can be set up with multiple groups, each group is used to pack different kinds of unqualified products. For example, one NG material line can accommodate unqualified products for cutting, and another NG material line can accommodate unqualified products for packaging. In the process of placement, the second clamp pusher is also used to push the pallet to shift, so that after a row of slots is full, the next row can be moved. The slot cavity is connected to the bottom of the product unloading line, which has better overall flexibility, is more convenient to use, and has lower maintenance costs. The pallets can be continuously transported and waited during the whole process, so the time of material discharging transition can be greatly shortened. And because the transition conveyor line for slitting products is to provide a material discharging transition buffer position for discharging, when the clamp pusher pushes and pulls the pallets on the pallet discharging line and the NG material line to the bottom of the gantry, they are respectively at the qualified or unqualified product receiving position. At this time, the transition buffer position and the product receiving position are on the same straight line. When the products are classified and discharged, it can be ensured to be carried out accurately and quickly, thereby saving the time of the intermediate transition, so as to improve the discharging efficiency.

[0027] When the adsorption group 1 adsorbs the component sub-units after the PCB board is cut and placed on the corresponding tray, since it includes multiple groups of buffer suction heads for adsorbing a row of component sub-units after the PCB board is cut, and each buffer suction head can also be independently lifted and rotated, it can ensure efficiency while ensuring better flexibility. That is, due to the axial combination of the buffer suction head and the hollow shaft, the space occupied by the unit assembly can be greatly reduced, so it can adapt to the simultaneous adsorption of a row of component sub-units, but when placing the discharge material, it can be sent to different trays according to the specific qualified status of each component sub-unit detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the top view of the structure of the present invention;

[0030] Figure 2 yes Figure 1 Structural diagram showing the positions of the middle tray loading line, tray unloading line and two sets of NG material lines;

[0031] Figure 3 yes Figure 2 A schematic diagram showing the structure of the intermediate tray loading line and the tray transition line;

[0032] Figure 4 This is a schematic diagram showing the structure of stacked pallets at one end of the pallet loading line;

[0033] Figure 5 It is a structural schematic diagram of one end of the clamping and pushing member;

[0034] Figure 6 1 is a schematic diagram of the structure of the push member 1;

[0035] Figure 7 is a schematic diagram of the structure of the support channel 1 and the support channel 2;

[0036] Figure 8 It is a structural diagram of the pallet transition line;

[0037] Fig. 9 It is a structural diagram of the transition conveyor line for slitting products;

[0038] Fig.10 is a schematic diagram of the structure of adsorption group 2;

[0039] Fig.11 is a schematic diagram of the structure of adsorption group 1;

[0040] Markings in the figure:

[0041] 1. Slitting product transition conveyor line; 2. Pallet loading line; 3. Pallet unloading line; 4. NG material line; 5. Pallet transition line; 6. Product unloading line; 7. Slitting fixture; 8. Gantry two; 9. Adsorption group two; 10. Horizontal linear module two; 21. Support channel one; 22. Push piece one; 23. Clamp push piece one; 24. Material guide trough one; 25. Push block one; 26. Support cylinder one; 221. Material push block one; 231. Slide rail one; 232. Sliding block one; 233. Material support plate one; 234. Conveyor belt one; 235. Clamp one; 236. Clamp cylinder one; 31. Support channel two; 32, push piece two; 33, clamp push piece two; 51, transition linear module; 52, transition channel; 61, gantry one; 62, horizontal linear module one; 63, adsorption group one; 631, buffer suction head; 632, hollow shaft; 633, connecting block; 634, lifting belt; 635, adsorption mounting frame; 636, rotating belt; 637, limiting pressure piece; 11, driving linear module; 12, lifting slide; 13, adsorption fixture; 14, lifting drive cylinder; 91, adsorption cylinder one; 92, suction cup two; 93, frame suction nozzle; 94, subunit suction nozzle. DETAILED DESCRIPTION

[0042] Example 1

[0043] like Figure 1-11 As shown, a production line for automatic classification and unloading of PCB boards after slitting, in this embodiment, includes a slitting product transition conveyor line 1, a tray loading line 2, a tray unloading line 3 and two groups of NG material lines 4 arranged side by side, and a group of tray transition lines 5 are arranged at one end of the tray loading line 2, the tray unloading line 3 and the NG material line 4, and the conveying direction of the tray transition line 5 is perpendicular to the conveying direction of the tray loading line 2, the tray unloading line 3 and the NG material line 4 and is arranged parallel to the conveying direction of the product unloading line 6, and at least one group of product unloading lines 6 is provided, and is arranged across the slitting product transition conveyor line 1, the tray loading line 2, the tray unloading line 3 and the NG material line 4 on both sides;

[0044] The slitting product transition conveyor line 1 is used to receive the slitting PCB board component sub-units and convey them to the bottom of the product unloading line 6. The tray loading line 2 is used to load the stacked trays onto the transition line in sequence. The transition line is used to convey the received trays to the tray unloading line 3 and the NG line 4 respectively. The product unloading line 6 is used to place the PCB board component sub-units sucked from the slitting product transition conveyor line 1 into the trays in the tray unloading line 3 or the NG line 4.

[0045] At this point, automatic classification and loading of pallets can be realized. During this process, there is no need for the participation of complex robots, so there is no risk of pallets falling, so the stability and discharge efficiency can be greatly improved.

[0046] The pallet loading line 2 includes two groups of relatively distributed supporting grooves 21 and a pushing member 22 and a clamping pushing member 23 located between the supporting grooves 21. Four groups of material guide grooves 24 and four groups of pushing blocks 25 driven back and forth by a supporting cylinder 26 are fixed above the material receiving end of the supporting groove 21. The four groups of material guide grooves 24 are used to limit the positions of the edges and corners of the pallets for pallet stacking. The pushing member 22 is used to support the stacked pallets and support them to descend so that the bottom pallet is placed on the supporting groove 21. The pushing block 25 is driven by the supporting cylinder 26 to extend out when the pallet descends one layer height to support the top of the bottom pallet at intervals, so as to achieve the separation of the stacked pallet and its bottom pallet. The clamping pushing member 23 is used to push the bottom pallet placed on the supporting groove 21 to the pallet transition line 5.

[0047] At this point, the support groove 21 only serves to connect with the pallet transition line 5 and support and limit the pallet. Its combination with the independent pushing member 22 and clamping member 23 can realize the pallet separation and conveying actions. The various components are more independent of each other, the structural cost is lower, and it is also more convenient for later maintenance.

[0048] The pushing member 22 includes a pushing cylinder and a pushing block 221 installed at the driving end of the pushing cylinder. The pushing block 221 is used to push the stacked pallets upward along the guide groove 24 under the drive of the pushing cylinder. The clamping member 23 includes a slide rail 231, a slider 232 slidably configured on the slide rail 231, and a supporting plate 233 installed on the slider 232 and extending toward one end of the pallet transition line 5. A conveyor belt 234 driven to rotate by a motor is installed on one side of the slide rail 231. A connecting plate 1 fixed to the conveyor belt 234 is connected to one side of the supporting plate 233. The connecting plate 1 is used to drive the supporting plate 233 supporting the pallet to slide onto the pallet transition line 5. Because the supporting plate 233 extends toward one end of the pallet transition line 5, It can ensure that the pallet transition line 5 and the slide rail 231 do not interfere with each other, and the support plate 233 can also slide onto the pallet transition line 5 to prepare for the pallet transition line 5 to take over, and it can also ensure that the pallet transition line 5 is taken over without power to reduce the taking over cost. Two sets of clamps 235 are hingedly installed at both ends of the support plate 233. The clamp 235 is driven by a clamp cylinder 236 hinged under the support plate 233 to rotate and engage to clamp the pallet, and after driving the pallet to be placed on the docking pallet transition line 5, it expands outward to relax the clamping of the pallet and rotates to below the pallet level. At this point, it can be ensured that when the support plate 233 returns, the clamp 235 will not interfere with the pallet entering the pallet transition line 5, so that the support plate 233 can return smoothly.

[0049] The pallet discharge line 3 and the NG material line 4 have the same structure, and are respectively used to receive the qualified PCB board component subunits and the unqualified PCB board component subunits to be loaded onto the pallet, and both include two groups of relatively distributed support grooves 31 and a push piece 32 and a clamp push piece 33 located between the support grooves 31. The clamp push piece 33 is used to clamp the pallet on the pallet transition line 5 and move it to the support groove 31. Four groups of guide grooves 2 and four groups of push blocks 2 driven back and forth by support cylinders 2 are fixed above the support groove 31. The four groups of guide grooves 2 are used to limit the corners of the pallet for position limiting of pallet stacking. The push piece 2 32 is used to support the pallet on the support groove 31 to rise along the guide groove 2 until it rises above the push block 2 to support the limit of the push block 2 that is extended again.

[0050] The second pushing member 32 includes a second pushing cylinder and a second pushing block installed at the driving end of the second pushing cylinder. The second pushing block is used to push the pallet upward along the guide groove 2 under the drive of the second pushing cylinder. The second clamping member 33 includes a second slide rail, a second slider slidably configured on the second slide rail, and a second supporting plate installed on the second slider and extending toward one end of the pallet transition line 5. A conveyor belt 2 driven to rotate by a second motor is installed on one side of the second slide rail. A connecting plate 2 fixed to the second conveyor belt is connected to one side of the second supporting plate. The connecting plate 2 is used to support the pallet transitioning from the pallet transition line 5 and drive it from the pallet transition line 5 to the second slide rail. Because the supporting plate 2 extends toward one end of the pallet transition line 5, it can ensure that the pallet transition line 5 and the second slide rail do not interfere with each other. The support plate 2 can also slide onto the pallet transition line 5 to prepare for the pallet transition line 5 to take over, and it can also ensure that the pallet transition line 5 is taken over without power to reduce the taking over cost. Two sets of clamps 2 are hingedly installed at both ends of the support plate 2. One set of clamps 2 is driven by the clamping cylinder 2 hinged under the support plate 2 to rotate and expand outward, and pass under the pallet on the pallet transition line 5 to cooperate with the other set of clamps 2 placed on both sides of the pallet, and rotate again to clamp and position the pallet under the drive of the clamping cylinder 2 to bring the pallet onto the slide rail 2. Since the push member 2 32 has the same structure as the push member 1 22, and the clamping member 1 23 has the same structure as the clamping member 2 33, only the position is different, and the specific structure in the figure is not shown here, and it is also convenient for later maintenance and replacement.

[0051] The pallet transition line 5 includes two groups of transition channels 52 driven by the transition linear module 51. The transition channels 52 are used to dock with the support channel 1 21 under the drive of the transition linear module 51 to receive the sliding pallet or dock with the support channel 2 31 to clamp the received pallet by the clamping and pushing member 2 33 and send it into the support channel 2 31.

[0052] At this point, in actual operation, the assembly line for automatic pallet receiving and loading is as follows: first, the stacked pallets are placed on the receiving end of the pallet loading line 2, and the receiving end of the pallet loading line 2 is within the limiting area of ​​the four groups of guide grooves 24. When automatic loading of the pallet is required, it is only necessary to start the push cylinder 1 in the pallet loading line 2, so that the push block 121 is supported on the bottom layer of the pallet, and the push block 125 is retracted, so that the push block 121 drives the pallet to descend, and when descending one pallet layer height, the push block 125 is extended again to support the bottom pallet and the second to last pallet. Between the layers of pallets, the top material block 1 221 continues to drive the bottom layer of pallets to descend until the pallet is placed on the support channel 1 21, and then the clamping and pushing member 1 23 drives the pallet close to the pallet transition line 5 until the pallet is sent into the docking transition channel 52. At this time, the transition channel 52 can dock with the support channel 2 31 under the drive of the transition linear module 51, and then the clamping and pushing member 2 33 can drive the pallet to slide under the product unloading line 6, and when there are multiple NG material lines 4, a pallet is pushed by the clamping and pushing member 2 33 under the product unloading line 6 of each NG material line 4 to receive NG products;

[0053] And because the stacked material pallets are the same, they have slots for placing multiple groups of PCB board component sub-units. The qualified PCB board component sub-units are placed one by one in the pallet slots on the pallet discharge line 3, and the unqualified PCB board component sub-units are placed one by one in the pallet slots on the NG material line 4. The NG material line 4 can be provided with multiple groups, each group being used to pack different types of unqualified products. For example, one NG material line 4 can accommodate unqualified products for cutting, and another NG material line 4 can accommodate unqualified products for packaging. In the process of placing, the clamping and pushing member 2 33 is also used to push the pallet to shift, so that after a row of slots is full, the next row of slots can be moved to the bottom of the product unloading line 6. The overall flexibility is better, the use is more convenient, and the maintenance cost is also lower. The pallet can be continuously transported and waited during the whole process, so the time of material discharge transition can be greatly shortened.

[0054] Example 2

[0055] A production line for automatic classification and unloading of PCB boards after slitting. In this embodiment, it is further limited based on Example 1. The product unloading line 6 includes a group of gantries 61 that span the slitting product transition conveyor line 1, the tray loading line 2, the tray unloading line 3 and the NG material line 4 on both sides. A group of horizontal linear modules 62 are arranged on the crossbeam of the gantry 61, and its driving end drives a group of adsorption groups 63 that slide back and forth along the horizontal direction. At this point, since the slitting product transition conveyor line 1 is to provide a discharging transition buffer position for discharging, when the clamping and pushing member 23 pushes and pulls the pallets on the tray unloading line 3 and the NG material line 4 to the bottom of the gantry 61, they are respectively at the qualified or unqualified product receiving position. At this time, the transition buffer position and the product receiving position are on the same straight line. When the products are classified and discharged, it can be ensured to be accurate and fast, thereby saving the time of the intermediate transition, thereby improving the discharging efficiency.

[0056] The adsorption group 1 63 includes a plurality of groups of buffer suction heads 631 for adsorbing a row of component subunits corresponding to the PCB board after cutting. The top of each group of buffer suction heads 631 is connected with a group of hollow shafts 632. The ends of the hollow shafts 632 are connected to the adsorption tubes, and the connecting blocks 633 are installed outside to connect to a group of lifting belts 634. The lifting belts 634 are installed on the adsorption mounting frame 635 through pulleys, and the buffer suction heads 631 are driven by the driving motor to move up and down.

[0057] The connecting block 633 is installed on the outside of the hollow shaft 632 for transfer, and a rotating motor is also installed on the adsorption mounting frame 635. The rotating motor is connected to a group of transfer pulleys installed on the outside of the hollow shaft 632 through a rotating belt 636. The pulleys are installed on the outside of the hollow shaft 632 through a key connection, and the adsorption mounting frame 635 is also installed with a group of limiting pressure plates 637 that press the transfer pulleys axially against the adsorption mounting frame 635. Therefore, by starting the rotating motor, the angle of the adsorption element sub-unit placed in the tray slot cavity can be readjusted, and at the same time, it will not affect the lifting and lowering of each buffer suction head 631 driven by the hollow shaft 632.

[0058] One end of the slitting product transition conveyor line 1 is located below the gantry 1 61, and is used to provide a discharging transition buffer position for discharging, and the other end is located below the gantry 2 8, and is used to provide a slitting transition buffer position for loading the slitting products. The gantry 2 8 is connected to a group of adsorption groups 2 9 through a transverse linear module 2 10, and the slitting product transition conveyor line 1 includes two groups of driving linear modules 11, and the driving ends of the two groups of driving linear modules 11 are respectively connected to a group of lifting slides 12 through a mounting plate. The two groups of lifting slides 12 are arranged opposite to each other, and each slidingly installs a group of adsorption fixtures 13 for aligning to the bottom of the adsorption group 1 63, and a group of lifting drive cylinders 14 are also installed on the mounting plate. The lifting drive cylinders 14 are connected to the adsorption fixtures 13 to achieve the upper and lower dislocation distribution of the two groups of adsorption fixtures 13 when the movements overlap, and the adsorption fixtures 13 are arranged with adsorption grooves for aligning a group of component subunits after slitting of the PCB board, and are used to transport materials back and forth between the discharging transition buffer position and the slitting transition buffer position;

[0059] At this point, the slitting product transition conveyor line 1 can realize the simultaneous loading and unloading of slitting products, thereby improving efficiency.

[0060] The adsorption group 2 9 is used to adsorb the PCB board cut on the slitting fixture 7 and transfer it to the slitting transition buffer position to prepare for the adsorption fixture 13 to receive the material. It includes a suction cup 2 92 driven to rise and fall by the adsorption cylinder 1 91. The suction cup 2 92 is provided with a frame suction nozzle 93 and a subunit suction nozzle 94 for corresponding to a group of PCB board cuts. The frame suction nozzle 93 is used to adsorb a group of PCB board cut frames, and the subunit suction nozzle 94 is used to adsorb each PCB board component subunit in the corresponding frame. A group of frame waste boxes are also provided between the slitting fixture 7 and the slitting product transition conveyor line 1. When the suction cup 2 92 moves to the top of the frame waste box, the frame suction nozzle 93 releases the adsorption so that the frame of the PCB board cut is separated from the frame waste box.

[0061] At this point, after a group of PCB boards are cut on the cutting jig 7, the adsorption group 2 9 adsorbs the cut PCB boards, first passes through the frame waste box, and performs the blanking of the frame after the PCB board is cut, and then moves to the cutting transition buffer position, and a group of adsorption jigs 13 moves to the bottom of the suction cup 2 92 of the transition buffer position, corresponding to the component sub-unit after the PCB board is cut, and the adsorption jig 13 then moves to the discharge transition buffer position for the adsorption group 1 63 to adsorb and discharge. Since the adsorption group 1 63 needs to discharge the component sub-units of the PCB board one by one after the PCB board is cut, it takes a long time. Therefore, another group of adsorption jigs 13 can be synchronized to the cutting transition buffer position to receive the component sub-unit again.

[0062] The working principle of the present invention is as follows: in the present invention, after a group of PCB boards are cut on the cutting jig 7, the adsorption group 2 9 adsorbs the cut PCB boards, first passes through the frame waste box, and performs the blanking of the frame after the PCB board is cut, and then moves to the cutting transition buffer position, and a group of adsorption jigs 13 moves to the bottom of the suction cup 2 92 of the transition buffer position, correspondingly receiving the component sub-unit after the PCB board is cut, and the adsorption jig 13 then moves to the discharge transition buffer position for the adsorption group 1 63 to adsorb and discharge. Since the adsorption group 1 63 needs to discharge the component sub-units after the PCB board is cut one by one, it takes a long time, so another group of adsorption jigs 13 can be synchronized to the cutting transition buffer position to receive the component sub-unit again;

[0063] At the same time, the pallet also completes the loading operation synchronously. Specifically, the stacked pallets are first placed on the receiving end of the pallet loading line 2. The receiving end of the pallet loading line 2 is within the limiting area of ​​the four groups of guide grooves 24. When automatic loading of the pallet is required, it is only necessary to start the pushing cylinder 1 in the pallet loading line 2, so that the pushing block 221 is supported on the bottom layer of the pallet, and the pushing block 25 is retracted, so that the pushing block 221 drives the pallet to descend, and when descending one pallet layer height, the pushing block 25 is extended again to support the bottom layer of the pallet and the second to last layer of the pallet Between the trays, the top material block 1 221 continues to drive the bottom tray down until the tray is placed on the support groove 1 21, and then the clamping and pushing member 1 23 drives the tray close to the tray transition line 5 until the tray is sent into the docking transition groove 52. At this time, the transition groove 52 can dock with the support groove 2 31 under the drive of the transition linear module 51, and then the clamping and pushing member 2 33 can drive the tray to slide under the product unloading line 6. When there are multiple NG material lines 4, a tray is pushed by the clamping and pushing member 2 33 under the product unloading line 6 of each NG material line 4 to receive NG products.

[0064] And because the stacked material pallets are the same, they are provided with slots for placing multiple groups of PCB component sub-units, and the qualified PCB component sub-units are placed one by one into the pallet slots on the pallet discharge line 3, and the unqualified PCB component sub-units are placed one by one into the pallet slots on the NG material line 4. The NG material line 4 can be provided with multiple groups, each group being used for packaging different types of unqualified products. For example, one NG material line 4 can accommodate unqualified products for cutting, and another NG material line 4 can accommodate unqualified products for packaging. In the process of placement, the clamping and pushing member 2 33 is also used to push the pallet to shift, so that after a row of slots is full, the next row of slots can be moved. The cavity is moved to the bottom of the product unloading line 6, which has better overall flexibility, is more convenient to use, and has lower maintenance costs. The tray can be continuously transported and waited during the whole process, so the time of material discharging transition can be greatly shortened; and because the slitting product transition conveyor line 1 is to provide a material discharging transition buffer position for discharging, when the clamping and pushing member 23 pushes and pulls the trays on the tray discharging line 3 and the NG material line 4 to the bottom of the gantry 61, they are respectively at the qualified or unqualified product receiving position. At this time, the transition buffer position and the product receiving position are on the same straight line. When the products are classified and discharged, it can be ensured to be accurate and fast, thereby saving the time of the intermediate transition, so as to improve the discharging efficiency;

[0065] When the adsorption group 63 adsorbs the component sub-units after the PCB board is cut and places them on the corresponding tray, since it includes multiple groups of buffer suction heads 631 for adsorbing a row of component sub-units after the PCB board is cut, and each buffer suction head 631 can also be independently lifted and rotated, it can ensure efficiency while ensuring better flexibility. That is, due to the axial combination of the buffer suction head 631 and the hollow shaft 632, the space occupied by the unit assembly can be greatly reduced. Therefore, it can adapt to the simultaneous adsorption of a row of component sub-units, but when the material is discharged and placed, it can be sent to different trays according to the specific qualified status of each component sub-unit detected.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A production line for automatic sorting and discharging of PCB boards after slitting, characterized in that: The invention comprises a slitting product transition conveyor line (1), a tray loading line (2), a tray discharging line (3) and at least one group of NG material lines (4) which are arranged side by side. A group of tray transition lines (5) are arranged at one end of the tray loading line (2), the tray discharging line (3) and the NG material line (4). The conveying direction of the tray transition line (5) is perpendicular to the conveying direction of the tray loading line (2), the tray discharging line (3) and the NG material line (4) and is arranged parallel to the conveying direction of the product unloading line (6). At least one group of the product unloading line (6) is arranged and is arranged across the slitting product transition conveyor line (1), the tray loading line (2), the tray discharging line (3) and the NG material line (4). The slitting product transition conveyor line (1) is used to receive the slitting PCB board component sub-units and convey them to the bottom of the product unloading line (6); the tray loading line (2) is used to load the stacked trays onto the transition line in sequence; the transition line is used to convey the received trays to the tray unloading line (3) and the NG material line (4) respectively; the product unloading line (6) is used to place the PCB board component sub-units sucked from the slitting product transition conveyor line (1) into the trays in the tray unloading line (3) or the NG material line (4); The pallet loading line (2) comprises two sets of supporting grooves (21) arranged opposite to each other and a pushing member (22) and a clamping member (23) located between the supporting grooves (21). Four sets of material guide grooves (24) and four sets of pushing blocks (25) driven back and forth by a supporting cylinder (26) are fixed above the material receiving end of the supporting groove (21). The four sets of material guide grooves (24) are used to limit the positions of the pallets at the corners for stacking the pallets. The pushing member (22) is used to support the stacked pallets and support them to descend so that the pallet at the bottom is placed on the supporting groove (21). The pushing block (25) is used to be driven by the supporting cylinder (26) to extend out when the pallet descends one layer height so as to be supported above the pallet at the bottom, so as to separate the stacked pallet from the pallet at the bottom. The clamping member (23) is used to push the pallet at the bottom placed on the supporting groove (21) to the pallet transition line (5).

2. The automatic sorting and discharging production line after PCB board slitting according to claim 1 is characterized in that: The pushing member (22) comprises a pushing cylinder and a material pushing block (221) mounted at a driving end of the pushing cylinder. The material pushing block (221) is used to push the stacked pallets upward along a material guide groove (24) under the drive of the pushing cylinder. The clamping member (23) comprises a slide rail (231), a slider (232) slidably arranged on the slide rail (231), and a support plate (233) mounted on the slider (232) and extending toward one end of the pallet transition line (5). A conveyor belt (234) driven to rotate by a motor is mounted on one side of the slide rail (231). One side of the support plate (233) is connected to a connecting plate fixed on a conveyor belt (234), and the connecting plate is used to drive the support plate (233) supporting the pallet to slide onto the pallet transition line (5). Two sets of clamps (235) are hingedly mounted at both ends of the support plate (233). The clamps (235) are driven by a clamping cylinder (236) hinged under the support plate (233) to rotate and engage to clamp the pallet, and after driving the pallet to be placed on the docking pallet transition line (5), they expand outward to release the clamping of the pallet and rotate to below the pallet level.

3. A PCB board automatic classification and discharging production line after slitting according to claim 1 or 2, characterized in that: The pallet discharging line (3) and the NG material line (4) have the same structure, and are respectively used for receiving the loading of qualified PCB board component subunits onto the pallet and receiving the loading of unqualified PCB board component subunits onto the pallet, and both include two sets of relatively distributed support grooves (31) and a push member (32) and a clamping push member (33) located between the support grooves (31). The clamping push member (33) is used for clamping the pallet on the pallet transition line (5) and moving it onto the support grooves (31). Four sets of guide grooves (2) and four sets of push blocks (2) driven back and forth by support cylinders (2) are fixed above the support grooves (31). The four sets of guide grooves (2) are used for limiting the positions of the pallets at the corners for stacking the pallets. The push member (32) is used for supporting the pallet on the support grooves (31) to rise along the guide grooves (2) until it rises above the push block (2) so as to support the limit position of the push block (2) for extending again.

4. The automatic sorting and discharging production line after PCB board slitting according to claim 3 is characterized in that: The second pushing member (32) includes a second pushing cylinder and a second pushing block installed at the driving end of the second pushing cylinder. The second pushing block is used to push the tray upward along the second material guide groove under the drive of the second pushing cylinder. The second clamping member (33) includes a second slide rail, a second slider slidably configured on the second slide rail, and a second supporting plate installed on the second slider and extending toward one end of the tray transition line (5). A conveyor belt driven by a second motor is installed on one side of the second slide rail. A second supporting plate is connected to a conveyor belt fixed on the conveyor belt. A connecting plate 2 on the belt 2 is used to support the pallet transitioned from the pallet transition line (5) and drive it from the pallet transition line (5) to the slide rail 2. Two sets of chucks 2 are hingedly installed at both ends of the supporting plate 2. One set of chucks 2 is driven by a clamping cylinder 2 hinged under the supporting plate 2 to rotate and expand outward, and pass under the pallet on the pallet transition line (5) to cooperate with another set of chucks 2 placed on both sides of the pallet, and rotate again to clamp and position the pallet under the drive of the clamping cylinder 2 to bring the pallet onto the slide rail 2.

5. The automatic sorting and discharging production line after PCB board slitting according to claim 4 is characterized in that: The pallet transition line (5) comprises two groups of transition channels (52) driven by a transition linear module (51). The transition channels (52) are used to dock with the first support channel (21) under the drive of the transition linear module (51) to receive a sliding pallet or dock with the second support channel (31) to clamp the received pallet by the second clamping and pushing member (33) and send it into the second support channel (31).

6. The automatic sorting and discharging production line after PCB board slitting according to claim 5 is characterized in that: The product unloading line (6) comprises a group of gantry frames (61) distributed across the two sides of the slitting product transition conveyor line (1), the tray loading line (2), the tray unloading line (3) and the NG material line (4), and a group of transverse linear modules (62) are arranged on the crossbeam of the gantry frame (61), and the driving end of the module drives a group of adsorption groups (63) that slide back and forth in the transverse direction.

7. The automatic sorting and discharging production line after PCB board slitting according to claim 6 is characterized in that: The adsorption group 1 (63) comprises a plurality of groups of buffer suction heads (631) for adsorbing a row of component subunits corresponding to the PCB board after cutting, and the top of each group of buffer suction heads (631) is connected to a group of hollow shafts (632), the ends of the hollow shafts (632) are connected to the adsorption tubes, and the connecting blocks (633) are installed outside to be connected to a group of lifting belts (634), and the lifting belts (634) are installed on the adsorption mounting frame (635) through pulleys, and the buffer suction heads (631) are driven by the driving motor to move up and down; The connecting block (633) is installed outside the hollow shaft (632) for transfer, and a rotating motor is also installed on the adsorption mounting frame (635). The rotating motor is connected to a set of transfer pulleys installed outside the hollow shaft (632) through a rotating belt (636). The pulleys are installed outside the hollow shaft (632) through a key connection, and a set of limiting pressing plates (637) are also installed on the adsorption mounting frame (635) for pressing the transfer pulleys axially against the adsorption mounting frame (635).

8. The automatic sorting and discharging production line after PCB board slitting according to claim 6 is characterized in that: One end of the slitting product transition conveyor line (1) is located below the first gantry (61) for providing a discharging transition buffer position for discharging, and the other end is located below the second gantry (8) for providing a slitting transition buffer position for loading the slitting products. The second gantry (8) is connected to a group of adsorption groups (9) through a second transverse linear module (10) driving, and the slitting product transition conveyor line (1) includes two groups of driving linear modules (11), and the driving ends of the two groups of driving linear modules (11) are each connected to a group of lifting slideways (12) through a mounting plate. ), two groups of lifting slideways (12) are arranged opposite to each other, and each slide is installed with a group of adsorption fixtures (13) for aligning to the bottom of the adsorption group (63), and a group of lifting drive cylinders (14) are also installed on the mounting plate, and the lifting drive cylinders (14) are connected to the adsorption fixtures (13) to achieve the two groups of adsorption fixtures (13) being staggered up and down when the movement overlaps, and the adsorption fixture (13) is arranged with an adsorption groove for aligning a group of component subunits after the PCB board is cut, and is used to transport materials back and forth between the discharge transition buffer position and the cutting transition buffer position.

9. The automatic sorting and discharging production line after PCB board slitting according to claim 8 is characterized in that: The adsorption group 2 (9) is used to adsorb the PCB board cut on the slitting jig (7) and transfer it to the slitting transition buffer position to prepare for the adsorption jig (13) to receive the material. It includes a suction cup 2 (92) driven to rise and fall by the adsorption cylinder 1 (91). The suction cup 2 (92) is provided with a frame suction nozzle (93) and a sub-unit suction nozzle (94) for corresponding to a group of PCB board cuts. The frame suction nozzle (93) is used to adsorb a group of frames after the PCB board is cut. The sub-unit suction nozzle (94) is used to adsorb each PCB board component sub-unit in the corresponding frame. A frame waste box is also provided between the slitting jig (7) and the slitting product transition conveyor line (1). When the suction cup 2 (92) moves to the top of the frame waste box, the frame suction nozzle (93) releases the adsorption so that the frame of the PCB board cut is separated from the frame waste box.

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