PCB edge rubber coating mechanism

Abstract

The invention relates to a PCB edge rubber coating mechanism, and belongs to the field of PCB processing equipment.The PCB edge rubber coating mechanism comprises a mounting frame, a supporting table, a pressing plate and a gluing device, the supporting table is fixedly arranged on the mounting frame, and a horizontal supporting face is formed on the upper surface of the supporting table; the pressing plate is arranged on the mounting frame in a lifting manner, and the four side walls of the pressing plate form abutting walls; the number of the gluing devices is four, the gluing devices correspond to the abutting walls one to one, each gluing device comprises a first extrusion block and a second extrusion block, the upper surface of each first extrusion block is lower than the height of the supporting face, and each second extrusion block is located over the corresponding first extrusion block; the first extrusion block is connected with a pressing block through a spring structure, the pressing block is located between the abutting wall and the first extrusion block, and the spring structure can be compressed in the moving direction of the first extrusion block where the spring structure is located. According to the invention, the stability and the consistency of the rubber coating operation can be obviously improved, the quality fluctuation caused by manual operation errors is reduced, and the processing precision and the reliability of the laminated plate structure in the subsequent drilling process can be further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of PCB processing equipment, in particular to a PCB board edge rubberizing mechanism. BACKGROUND

[0002] PCB drilling process is one of the key steps in the PCB manufacturing process, and the hole precision directly affects the quality of subsequent plug-in, welding and whole machine assembly. Before drilling, the PCB board is usually stacked together with auxiliary materials such as wood backing plate and aluminum sheet according to a certain rule, and is fixed by PIN needle positioning to ensure the position stability and stress uniformity between the layers of materials during drilling.

[0003] Since the PIN needle is usually fixed only at several hole positions (generally 2-4 points), it cannot provide uniform clamping force on the entire board surface. During drilling, the edges of the PCB, aluminum sheet and wood backing plate may separate from each other due to stress, resulting in warping and swinging, which will affect the drilling process and reduce the drilling precision. Therefore, adhesive tape is used to fix the edges of the PCB, wood backing plate and aluminum sheet together to provide stable support and fixation for the edge position of the PCB, so that the drilling process is not affected.

[0004] In current production activities, the rubberizing process of the PCB board still mainly relies on manual work, and workers need to manually paste adhesive tape to fix the board around one by one. During the manual rubberizing process, the paste position, stretching force and paste angle of the adhesive tape all depend on manual experience, which is difficult to keep consistent, and may result in inconsistent rubberizing tightness. In addition, the fingers of the workers may contact the adhesive surface during operation, which reduces the adhesion strength. Moreover, long-time work may cause workers to make operation mistakes, which will affect the rubberizing quality and thus affect the drilling process, and may result in insufficient drilling precision.

[0005] Therefore, the present application provides a PCB board edge rubberizing mechanism to solve the above-mentioned problems. SUMMARY

[0006] Based on this, the application provides a PCB board edge rubberizing mechanism, which comprises a mounting frame, a supporting table, a pressing plate and a rubberizing device, the supporting table is fixedly arranged on the mounting frame, and a horizontal supporting surface is formed on the upper surface of the supporting table; the pressing plate is arranged on the mounting frame in a lifting manner and is located directly above the supporting table, the pressing plate is horizontally arranged and is square-shaped, and four side walls of the pressing plate form abutting walls; the rubberizing device comprises four first extrusion blocks and second extrusion blocks which are arranged in one-to-one correspondence with the abutting walls and can move horizontally along a direction perpendicular to the corresponding abutting wall, the upper surface of the first extrusion block is lower than the height of the supporting surface, the height difference is a, the second extrusion block is located directly above the first extrusion block, and the height difference between the lower surface of the second extrusion block and the supporting surface is b; a pressing block is connected to the first extrusion block through a spring structure, the pressing block is located between the abutting wall and the first extrusion block, the height of the lower surface of the pressing block is higher than the height of the upper surface of the first extrusion block, the height of the upper surface of the pressing block is lower than the height of the lower surface of the second extrusion block, and the spring structure can be compressed along the moving direction of the first extrusion block.

[0007] The rubberizing mechanism in the application is used for rubberizing the edges of the laminated plate structure formed after the wood base plate, the PCB board and the aluminum plate are positioned by the PIN pin, so as to further enhance the fixing effect between the plate materials and prevent the laminated plate structure from warping and swinging in the subsequent drilling process.

[0008] In the application, the supporting table is used for bearing the laminated plate structure to be rubberized, the pressing plate is arranged directly above the supporting table and is used for pressing and fixing the laminated plate structure on the supporting surface during the rubberizing operation, in order to facilitate the rubberizing device to work on the four edges of the laminated plate structure, the area of the supporting surface needs to be smaller than the area of the laminated plate structure, so that when the laminated plate structure is placed on the supporting surface, the four side edges of the laminated plate structure extend to the outside of the supporting surface, and after the laminated plate structure is placed on the supporting table, the four side walls of the laminated plate structure are parallel to the four side walls of the pressing plate.

[0009] The rubberizing device is used for covering the edges of the laminated plate structure with the adhesive tape, when the rubberizing device performs the covering operation of the adhesive tape, the adhesive tape needs to be arranged between the rubberizing device and the supporting table and the adhesive surface of the adhesive tape needs to face the supporting table, and the rubberizing process is as follows: Firstly, the first extrusion block moves horizontally towards the supporting table, in this process, the pressing block abuts on the adhesive tape before the first extrusion block and pushes the adhesive tape, so that the adhesive tape is pressed and fixed on the side wall of the laminated plate structure, preferably, the upper and lower end edges of the pressing block are aligned with the upper and lower end edges of the laminated plate structure, respectively. Then, with the continuous movement of the first extrusion block, the spring structure connected with the pressing block is compressed, the pressing block continuously presses the edge of the laminated structure, and the first extrusion block moves to the lower side of the laminated structure until abutting against the support table, in the process, the first extrusion block pushes the adhesive tape to gradually press and adhere to the lower surface of the laminated structure; Then, the second extrusion block moves horizontally towards the support table, passes through the pressing block and moves to the upper side of the laminated structure until abutting against the abutting wall of the pressing plate, in the process, the second extrusion block pushes the adhesive tape to gradually press and adhere to the upper surface of the laminated structure; Finally, the adhesive device is reset, and the adhesive work of the laminated structure is completed.

[0010] The height difference a between the upper surface of the first extrusion block and the support surface needs to be the same as the thickness of the adhesive tape or slightly smaller than the thickness of the adhesive tape, so as to ensure that the adhesive tape can be pushed and pressed to the lower surface of the laminated structure by the first extrusion block, and the height difference b between the lower surface of the second extrusion block and the support surface needs to be the same as the sum of the thickness of the laminated structure and the adhesive tape or slightly smaller than the sum of the thickness of the laminated structure and the two layers of adhesive tape, so as to ensure that the adhesive tape can be pushed and pressed to the upper surface of the laminated structure by the second extrusion block.

[0011] In the present application, the adhesive tape covering process of the laminated structure is automatically completed by the adhesive device, compared with the manual operation mode, the workers no longer need to manually paste the adhesive tape, thereby avoiding the problems of position deviation, uneven stretching force and inconsistent angle caused by operation difference in the manual adhesive process. It can be seen that the present application can ensure the consistency of the pasting position, stretching force and pasting angle of the adhesive tape on the laminated structure, and can avoid the phenomenon of local loosening. That is, the present application can significantly improve the stability and consistency of the adhesive work, reduce the quality fluctuation caused by manual operation errors, and further improve the processing precision and reliability of the laminated structure in the subsequent drilling process.

[0012] Further, the working space is formed between the pressing block and the abutting wall; the adhesive device further comprises a glue supply assembly, the glue supply assembly comprises a first mounting seat arranged on the mounting frame, and a mounting shaft and a limiting shaft arranged on the first mounting seat and parallel to each other, the mounting shaft is arranged perpendicular to the moving direction of the first extrusion block, and the limiting shaft is located below the mounting shaft and above the working space.

[0013] In the embodiment, the adhesive supply assembly is used to supply adhesive tape for the adhesive device: the adhesive tape roll is sleeved on the mounting shaft to complete the installation of the adhesive tape roll on the adhesive supply assembly, and then the adhesive tape on the adhesive tape roll is torn off, and after the adhesive tape passes the limiting shaft, it falls in the working space, so that the adhesive tape is located between the adhesive device and the support table, and the adhesive supply for the adhesive device is realized; when the adhesive tape passes the limiting shaft, the back surface of the adhesive tape (the surface without adhesion) needs to abut against the limiting shaft.

[0014] Further, the second mounting seat is movably arranged on the mounting frame through a guide rail, and the first extrusion block is mounted on the second mounting seat through a first support; the mounting frame is further provided with a first driving device corresponding to the second mounting seat, which is used to drive the second mounting seat to reciprocate along the guide rail.

[0015] In the embodiment, the guide rail where the second mounting seat is arranged is arranged along a direction perpendicular to the corresponding abutting wall, and the first driving device is used to drive the second mounting seat to reciprocate along the guide rail, so that the first extrusion block can reciprocate horizontally along a direction perpendicular to the corresponding abutting wall.

[0016] Further, the third mounting seat is movably arranged on the mounting frame through a guide rail, and the second extrusion block is mounted on the third mounting seat through a second support; the mounting frame is further provided with a second driving device corresponding to the third mounting seat, which is used to drive the third mounting seat to reciprocate along the guide rail.

[0017] In the embodiment, the guide rail where the third mounting seat is arranged is arranged along a direction perpendicular to the corresponding abutting wall, and the second driving device is used to drive the third mounting seat to reciprocate along the guide rail, so that the second extrusion block can reciprocate horizontally along a direction perpendicular to the corresponding abutting wall.

[0018] Further, the side wall of the second extrusion block facing the support table is vertically arranged to form a pressing surface, and a cutter is arranged on the abutting wall corresponding to the pressing surface, and the cutter is horizontally arranged.

[0019] In the embodiment, the cutting edge of the cutter is located away from the abutting wall, which is used to cut the adhesive tape during the rubber coating operation of the adhesive device. The specific process is as follows: during the horizontal movement of the second extrusion block towards the support table, when the pressing surface of the second extrusion block pushes the adhesive tape and abuts against the cutter, the adhesive tape is cut. Since the adhesive tape is cut between the abutting wall and the pressing surface, the end of the adhesive tape will not be adhered to the laminated plate structure after being cut, or will not be firmly adhered to the laminated plate structure, so that the worker can easily tear off the adhesive tape from the laminated plate structure through the end of the adhesive tape after completing the subsequent drilling operation.

[0020] Further, the cutting knife is provided with a receiving groove, and the bottom of the receiving groove is provided with a rubber layer.

[0021] In the embodiment, during the movement of the pressing surface towards the abutting wall, the cutting knife on the abutting wall is inserted into the receiving groove, and the cutting edge of the cutting knife abuts against the rubber layer, so that the cutting edge of the cutting knife is protected while ensuring that the cutting knife can cut the adhesive tape.

[0022] Further, the first mounting seat is movably arranged on the mounting frame through a guide rail, and the mounting frame is provided with a third driving device corresponding to the first mounting seat, which is used to drive the first mounting seat to reciprocate along the guide rail.

[0023] In the embodiment, the guide rail on which the first mounting seat is arranged is arranged along the up-down direction, and the reciprocating movement of the first mounting seat in the vertical direction can be realized through the driving of the third driving device, so that the automatic supply of the adhesive tape can be realized. Specifically, when the first extrusion block moves to abut against the support table, the first mounting seat moves upward by a preset distance c, at this time, the adhesive tape is pulled out, and then, after the resetting of the gluing device after completing the gluing work, the first mounting seat moves downward to reset, so that the adhesive tape pulled out in the upward movement falls back into the working space, and the automatic supply of the adhesive tape is realized. It can be seen that the gluing mechanism can also realize the automatic supply of the adhesive tape, and manual preparation of the adhesive tape is not required. Therefore, the adhesive surface of the adhesive tape will not be touched by fingers during the gluing process, and the adhesion strength of the adhesive surface of the adhesive tape can be effectively ensured.

[0024] Further, the spring structure comprises a mounting block fixedly arranged on the upper surface of the first extrusion block, at least two mounting holes are arranged on the mounting block and penetrate the mounting block, a connecting rod is slidably inserted into the mounting holes, one end of the connecting rod is fixedly connected to the extrusion block, and a cylindrical spring is further sleeved on the connecting rod, and the two ends of the cylindrical spring abut against the extrusion block and the mounting block, respectively.

[0025] In the embodiment, the connecting rod is slidably inserted into the mounting hole through a linear bearing, so as to ensure that the connecting rod can smoothly slide relative to the mounting hole. Preferably, a limiting block is arranged on the section of the connecting rod away from the extrusion block, so as to avoid the disengagement of the connecting rod from the mounting hole.

[0026] Further, the pressing plate is drivingly connected to a fourth driving device arranged on the mounting frame, and the fourth driving device is used to drive the pressing plate to reciprocate upward and downward.

[0027] In the embodiment, the fourth driving device is a driving air cylinder.

[0028] Further, the support table is further provided with a limiting fence, the limiting fence comprises four limiting plates respectively parallel to the abutting walls of the pressing plate, the limiting plates are installed on the support table through connecting arms, and lower ends of the limiting plates extend below the support surface.

[0029] In the embodiment, the limiting fence is used for limiting the stack structure placed on the support surface, specifically, the four limiting plates are respectively used for abutting against four side walls of the stack structure, so that the position of the stack structure on the support surface is fixed, the four side walls of the stack structure are parallel to the four side walls of the pressing plate respectively, and the glue sticking device is facilitated to perform the glue coating operation.

[0030] The principle and effect of the present application are further described below in combination with the above technical solutions and the drawings: In the present application, the process of coating the stack structure with adhesive tape is automatically completed by the glue sticking device, compared with the mode of relying on manual operation, workers no longer need to manually paste adhesive tape, so that the problems of position deviation, uneven stretching force and inconsistent pasting angle caused by operation difference in the manual glue coating process are avoided. It can be seen that the present application can ensure the consistency of the pasting position, stretching force and pasting angle of the adhesive tape on the stack structure, and can avoid the phenomenon of local loosening. That is, the present application can significantly improve the stability and consistency of the glue coating operation, reduce the quality fluctuation caused by manual operation errors, and thus can improve the machining precision and reliability of the stack structure in the subsequent drilling process. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a cross-sectional structure schematic view of the PCB edge glue coating mechanism of the embodiment of the present application (only one glue sticking device is shown); Figure 2 It is a motion schematic view of the pressing plate when pressing the stack structure on the support surface; Figure 3 It is a motion schematic view of the pressing block when abutting against the side wall of the stack structure; Figure 4 It is a motion schematic view of the first extrusion block when abutting against the support table; Figure 5 It is a motion schematic view of the glue supply assembly when rising; Figure 6 It is a motion schematic view of the second extrusion block when abutting against the pressing plate; Figure 7 It is a partial enlarged view of Figure 6 ; Figure 8 It is a motion schematic view of the glue supply assembly when descending and resetting; Figure 9A top view structural schematic diagram of the support table according to the embodiment of the present application; Figure 10 A structural schematic diagram of the support table according to the embodiment of the present application when the support table is placed with the laminated plate structure. Reference signs

[0032] 1 - support table, 11 - connecting plate, 12 - limiting plate, 2 - pressing plate, 21 - cutter, 31 - first extrusion block, 311 - mounting block, 312 - connecting rod, 32 - pressing block, 33 - second extrusion block, 331 - accommodating groove, 41 - first mounting seat, 42 - mounting shaft, 43 - limiting shaft, 51 - second mounting seat, 511 - first support, 52 - third mounting seat, 521 - second support, 6 - laminated plate structure, 7 - adhesive tape. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of those skilled in the art, the present application will be further described in detail below in combination with the drawings and embodiments: As Figures 1-10 A PCB edge gluing mechanism, comprising a mounting frame (not shown in the figure), a support table 1, a pressing plate 2 and an adhesive device, the support table 1 is fixedly arranged on the mounting frame, and the upper surface thereof forms a horizontal support surface; the pressing plate 2 is arranged on the mounting frame in a liftable manner and is located directly above the support table 1, the pressing plate 2 is horizontally arranged and is square-shaped, and the four side walls thereof form abutting walls; the adhesive device comprises four first extrusion blocks 3231 and second extrusion blocks 33, which are arranged in one-to-one correspondence with the abutting walls, respectively, and can move horizontally along a direction perpendicular to the corresponding abutting wall, the upper surface of the first extrusion block 3231 is lower than the height of the support surface, the height difference is a, the second extrusion block 33 is located directly above the first extrusion block 3231, and the height difference between the lower surface of the second extrusion block 33 and the support surface is b; the pressing block 32 is connected to the first extrusion block 3231 through a spring structure, the pressing block 32 is located between the abutting wall and the first extrusion block 3231, the height of the lower surface of the pressing block 32 is higher than the height of the upper surface of the first extrusion block 3231, the height of the upper surface of the pressing block 32 is lower than the height of the lower surface of the second extrusion block 33, and the spring structure can be compressed along the moving direction of the first extrusion block 3231 on which the spring structure is located.

[0034] The gluing mechanism in the present application is used for gluing the edges of the laminated plate structure 6 formed by positioning the wood cushion plate, the PCB and the aluminum plate through the PIN pin, so as to further enhance the fixing effect between the layers of plate materials and prevent the laminated plate structure from warping and swinging in the subsequent drilling process.

[0035] In the present application, the support table 1 is used to carry the laminated plate structure 6 to be coated, and the pressing plate 2 is arranged directly above the support table 1, which is used to press and fix the laminated plate structure 6 on the support surface during the coating operation. In order to facilitate the operation of the glue sticking device on the four side edges of the laminated plate structure 6, the area of the support surface needs to be smaller than the area of the laminated plate structure 6, so that when the laminated plate structure 6 is placed on the support surface, the four side edges of the laminated plate structure 6 extend to the outside of the support surface. At the same time, after the laminated plate structure 6 is placed on the support table 1, the four side walls of the laminated plate structure 6 need to be parallel to the four side walls of the pressing plate 2.

[0036] The glue sticking device is used to wrap the adhesive tape 7 around the edge of the laminated plate structure 6. When the glue sticking device performs the wrapping operation of the adhesive tape 7, the adhesive tape 7 needs to be placed between the glue sticking device and the support table 1, and the adhesive surface of the adhesive tape 7 needs to face the support table 1. The coating process is as follows: Firstly, the first extrusion block 3231 moves horizontally towards the support table 1. In this process, the pressing block 32 will abut on the adhesive tape 7 before the first extrusion block 3231, and push the adhesive tape 7 to press and fix the adhesive tape 7 on the side wall of the laminated plate structure 6. Preferably, the upper and lower end edges of the pressing block 32 are aligned with the upper and lower end edges of the laminated plate structure 6, respectively. Then, with the continuous movement of the first extrusion block 3231, the spring structure connected with the pressing block 32 will be compressed, and the pressing block 32 will continue to press on the edge of the laminated plate structure 6. At the same time, the first extrusion block 3231 will move to the lower side of the laminated plate structure 6 until it abuts on the support table 1. In this process, the first extrusion block 3231 will push the adhesive tape 7 to gradually press and adhere to the lower surface of the laminated plate structure 6. Then, the second extrusion block 33 moves horizontally towards the support table 1, passes through the pressing block 32 and moves to the upper side of the laminated plate structure 6 until it abuts on the abutting wall of the pressing plate 2. In this process, the second extrusion block 33 will press and adhere the adhesive tape 7 to the upper surface of the laminated plate structure 6. Finally, the glue sticking device is reset, and the coating operation of the laminated plate structure 6 is completed.

[0037] In the present application, the height difference a between the upper surface of the first extrusion block 3231 and the support surface needs to be the same as the thickness of the adhesive tape 7, or slightly smaller than the thickness of the adhesive tape 7, so as to ensure that the adhesive tape 7 can be pushed and pressed to the lower surface of the laminated plate structure 6 by the first extrusion block 3231. The height difference b between the lower surface of the second extrusion block 33 and the support surface needs to be the same as the sum of the thickness of the laminated plate structure 6 and the adhesive tape 7, or slightly smaller than the sum of the thickness of the laminated plate structure 6 and the two layers of adhesive tape 7, so as to ensure that the adhesive tape 7 can be pushed and pressed to the upper surface of the laminated plate structure 6 by the second extrusion block 33.

[0038] In the present application, the process of covering the adhesive tape 7 on the laminated plate structure 6 is automatically completed by the adhesive device, compared with the manual operation mode, the workers no longer need to manually paste the adhesive tape 7, thereby avoiding the problems of position deviation, uneven stretching force, inconsistent pasting angle and the like caused by operation difference in the manual adhesive process. It can be seen that the present application can ensure the consistency of the pasting position, stretching force and pasting angle of the adhesive tape 7 on the laminated plate structure 6, and can avoid the phenomenon of local loosening, that is, the present application can significantly improve the stability and consistency of the adhesive operation, reduce the quality fluctuation caused by manual operation errors, and thus can improve the processing precision and reliability of the laminated plate structure 6 in the subsequent drilling process.

[0039] In one embodiment, a working space is formed between the pressing block 32 and the abutting wall; the adhesive device further comprises a glue supply assembly, which comprises a first mounting seat 41 arranged on the mounting frame, and a mounting shaft 42 and a limiting shaft 43 arranged on the first mounting seat 41 and parallel to each other, the mounting shaft 42 is arranged perpendicular to the moving direction of the first pressing block 3231, and the limiting shaft 43 is located below the mounting shaft 42 and above the working space.

[0040] In this embodiment, the glue supply assembly is used to provide the adhesive tape 7 for the adhesive device: the adhesive tape 7 is wound on the mounting shaft 42 to complete the installation of the adhesive tape 7 on the glue supply assembly, then the adhesive tape 7 on the adhesive tape 7 roll is torn off, and after winding around the limiting shaft 43, it falls into the working space, so that the adhesive tape 7 is located between the adhesive device and the support table 1, and the glue supply for the adhesive device is realized; when the adhesive tape 7 winds around the limiting shaft 43, the back surface of the adhesive tape 7 (the surface without adhesion of the adhesive tape 7) needs to abut against the limiting shaft 43.

[0041] In one embodiment, a second mounting seat 51 is arranged on the mounting frame corresponding to the first pressing block 3231, the second mounting seat 51 is movably arranged on the mounting frame through a guide rail, and the first pressing block 3231 is installed on the second mounting seat 51 through a first support 511; a first driving device is further arranged on the mounting frame corresponding to the second mounting seat 51, for driving the second mounting seat 51 to reciprocate along the guide rail.

[0042] In this embodiment, the guide rail on which the second mounting seat 51 is arranged is arranged along a direction perpendicular to the corresponding abutting wall, and the first driving device drives the second mounting seat 51 to reciprocate along the guide rail, so that the first pressing block 3231 reciprocates horizontally along a direction perpendicular to the corresponding abutting wall.

[0043] In one embodiment, the mounting frame is provided with a third mounting seat 52 corresponding to the second pressing block 33, the third mounting seat 52 is movably arranged on the mounting frame through a guide rail, and the second pressing block 33 is mounted on the third mounting seat 52 through a second support 521; the mounting frame is further provided with a second driving device corresponding to the third mounting seat 52, which is used to drive the third mounting seat 52 to reciprocate along the guide rail.

[0044] In this embodiment, the guide rail where the third mounting seat 52 is arranged is arranged along a direction perpendicular to the corresponding abutting wall, and the second driving device is used to drive the third mounting seat 52 to reciprocate along the guide rail, so that the second pressing block 33 can reciprocate horizontally along a direction perpendicular to the corresponding abutting wall.

[0045] In one embodiment, the second pressing block 33 is vertically arranged towards a side wall of the support table 1 to form a pressing surface, the abutting wall is provided with a cutter 21 corresponding to the pressing surface, and the cutter 21 is horizontally arranged.

[0046] In this embodiment, the cutting edge of the cutter 21 is located at a position away from the abutting wall, which is used to cut the adhesive tape 7 during the encapsulation operation of the adhesive device. Specifically, during the horizontal movement of the second pressing block 33 towards the support table 1, when the pressing surface of the second pressing block 33 pushes the adhesive tape 7 and abuts on the cutter 21, the adhesive tape 7 can be cut. Since the adhesive tape 7 is cut between the abutting wall and the pressing surface, the end of the adhesive tape 7 will not be adhered to the laminated structure 6 after being cut, or will not be firmly adhered to the laminated structure 6, so that the worker can easily remove the adhesive tape 7 from the laminated structure 6 through the end of the adhesive tape 7 after completing the subsequent drilling operation.

[0047] In one embodiment, a receiving groove 331 is formed on the pressing surface corresponding to the cutter 21, and a rubber layer is arranged on the bottom of the receiving groove 331.

[0048] In this embodiment, during the movement of the pressing surface towards the abutting wall, the cutter 21 on the abutting wall is inserted into the receiving groove 331, and the cutting edge of the cutter 21 abuts on the rubber layer, so that the cutting edge of the cutter 21 can be protected while ensuring that the cutter 21 can cut the adhesive tape 7.

[0049] In one embodiment, the first mounting seat 41 is movably arranged on the mounting frame through a guide rail, and the mounting frame is provided with a third driving device corresponding to the first mounting seat 41, which is used to drive the first mounting seat 41 to reciprocate along the guide rail.

[0050] In the embodiment, the guide rail where the first mounting seat 41 is located is arranged along the up-down direction, and the reciprocating movement of the first mounting seat 41 in the vertical direction can be realized through the driving of the third driving device, so that the automatic supply of the adhesive tape 7 by the adhesive supply assembly can be realized. Specifically, when the first extrusion block 3231 moves to abut against the support table 1, the first mounting seat 41 moves upward by a preset distance c, at this time, the adhesive tape 7 is pulled out, and then, after the adhesive device completes the gluing work and resets, the first mounting seat 41 moves downward to reset, so that the adhesive tape 7 pulled out in the upward movement process falls into the working space, and the automatic supply of the adhesive tape 7 is realized. It can be seen that the gluing mechanism can also realize the automatic supply of the adhesive tape 7, and manual preparation of the adhesive tape 7 is not required. Therefore, the adhesive surface of the adhesive tape 7 will not be touched by fingers during the coating process, and the adhesion strength of the adhesive surface of the adhesive tape 7 can be effectively ensured.

[0051] In one embodiment, the spring structure includes a mounting block 311 fixedly arranged on the upper surface of the first extrusion block 3231, at least two mounting holes are formed in the mounting block 311 and extend through the mounting block 311, a connecting rod 312 is slidably inserted into the mounting holes, one end of the connecting rod 312 is fixedly connected to the pressing block 32, and a cylindrical spring is further sleeved on the connecting rod 312, and the two ends of the cylindrical spring abut against the pressing block 32 and the mounting block 311, respectively.

[0052] In the embodiment, the connecting rod 312 is slidably inserted into the mounting hole through the linear bearing, so as to ensure that the connecting rod 312 can smoothly slide relative to the mounting hole. Preferably, a limiting block is arranged on the section of the connecting rod 312 away from the pressing block 32, so as to avoid the connecting rod 312 from being pulled out of the mounting hole.

[0053] In one embodiment, the pressing plate 2 is drivingly connected with a fourth driving device arranged on the mounting frame, and the fourth driving device is used to drive the pressing plate 2 to reciprocate up and down.

[0054] In the embodiment, the fourth driving device is a driving air cylinder.

[0055] In one embodiment, a limiting fence is further arranged on the support table 1, and the limiting fence includes four limiting plates 12 parallel to the abutting walls of the pressing plate 2, the limiting plates 12 are mounted on the support table 1 through connecting arms, and the lower ends of the limiting plates 12 extend below the support surface.

[0056] In the embodiment, the limiting fence is used to limit the stack structure 6 placed on the support surface. Specifically, the four limiting plates 12 are respectively used to abut against the four side walls of the stack structure 6, so as to fix the position of the stack structure 6 on the support surface, and make the four side walls of the stack structure 6 parallel to the four side walls of the pressing plate 2, so as to facilitate the gluing work of the adhesive device.

[0057] The above embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A PCB board edge encapsulation mechanism, characterized in that, The application relates to a mounting rack, a support table fixedly arranged on the mounting rack, a support surface horizontally formed on the upper surface of the support table, a pressing plate vertically arranged on the mounting rack and located directly above the support table, the pressing plate being horizontally arranged and square-shaped, four side walls of the pressing plate forming abutting walls, four glue sticking devices corresponding to the abutting walls, each glue sticking device comprising a first extruding block and a second extruding block horizontally reciprocating along a direction perpendicular to the corresponding abutting wall, the upper surface of the first extruding block being lower than the height of the support surface, the height difference being a, the second extruding block being located directly above the first extruding block, and the height difference between the lower surface of the second extruding block and the support surface being b, a pressing block being connected to the first extruding block through a spring structure, the pressing block being located between the abutting wall and the first extruding block, the lower surface of the pressing block being higher than the upper surface of the first extruding block, the upper surface of the pressing block being lower than the lower surface of the second extruding block, and the spring structure being compressed along the moving direction of the first extruding block. A working space is formed between the pressing block and the abutting wall, and the glue sticking device further comprises a glue supply assembly, the glue supply assembly comprising a first mounting seat arranged on the mounting rack, and mounting shafts and limiting shafts arranged on the first mounting seat and parallel to each other, the mounting shafts being arranged perpendicularly to the moving direction of the first extruding block, the limiting shafts being located below the mounting shafts and above the working space. A second mounting seat corresponding to the first extruding block is arranged on the mounting rack, the second mounting seat being movably arranged on the mounting rack through a guide rail, the first extruding block being mounted on the second mounting seat through a first support, a first driving device corresponding to the second mounting seat is further arranged on the mounting rack, and the first driving device is used for driving the second mounting seat to reciprocate along the guide rail. A third mounting seat corresponding to the second extruding block is arranged on the mounting rack, the third mounting seat being movably arranged on the mounting rack through a guide rail, the second extruding block being mounted on the third mounting seat through a second support, and a second driving device corresponding to the third mounting seat is further arranged on the mounting rack, and the second driving device is used for driving the third mounting seat to reciprocate along the guide rail. A side wall of the second extruding block facing the support table is vertically arranged, forming a pressing surface, and a cutter corresponding to the pressing surface is arranged on the abutting wall.

2. The PCB edge encapsulating mechanism of claim 1, wherein, An accommodating groove corresponding to the cutter is arranged on the pressing surface, and a rubber layer is arranged on the bottom of the accommodating groove.

3. The PCB edge encapsulating mechanism of claim 2, wherein, The first mounting seat is movably arranged on the mounting rack through a guide rail, and a third driving device corresponding to the first mounting seat is arranged on the mounting rack, and the third driving device is used for driving the first mounting seat to reciprocate along the guide rail.

4. The PCB edge encapsulating mechanism of claim 3, wherein, ​ 5. The PCB edge encapsulating mechanism according to any one of claims 2-4, characterized in that, ​ 6. The PCB edge encapsulating mechanism of claim 5, wherein, ​ 7. The PCB edge encapsulating mechanism of claim 5, wherein, ​ 8. The PCB edge encapsulating mechanism of claim 1, wherein, The spring structure comprises a mounting block fixedly arranged on the upper surface of the first extrusion block, at least two mounting holes penetrating through the mounting block are formed on the mounting block, a connecting rod is slidably inserted into the mounting holes, one end of the connecting rod is fixedly connected to the pressing block, and a cylindrical spring is further sleeved on the connecting rod, and the two ends of the cylindrical spring are respectively abutted against the pressing block and the mounting block.

9. The PCB edge encapsulating mechanism of claim 1, wherein, The pressing plate is drivingly connected with a fourth driving device arranged on the mounting frame, and the fourth driving device is used to drive the pressing plate to reciprocatingly move up and down.

10. The PCB edge encapsulating mechanism of claim 1, wherein, The supporting table is further provided with a limiting fence, the limiting fence comprises four limiting plates parallel to the abutting walls of the pressing plates, the limiting plates are mounted on the supporting table through connecting arms, and the lower ends of the limiting plates extend below the supporting surface.

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