A PCB board gluing device

Abstract

The present invention relates to the technical field of PCB board gluing, and specifically discloses a PCB board gluing device, comprising: a housing and a mobile frame, wherein the mobile frame is provided with a gluing nozzle and a positioning detection mechanism; the housing is further provided with a carrying module and a loading and unloading module; the carrying module comprises a base slidably assembled on the housing, a carrying plate is rotatably mounted on the base along an axis extending in the left and right directions, a connecting platform is provided on both sides of the carrying plate, rollers are rotatably mounted on the opposite surfaces of the connecting platform along a vertical axis, a sliding plate is elastically slidably mounted on the upper surface of the connecting platform in the left and right directions, the sliding plate passes through the connecting platform, and a pressing member is provided on the bottom of the side where the two sliding plates are close to each other. The beneficial effects of the present invention are: the process of positioning and detecting the PCB board can be used to realize the loading and unloading operations of the PCB board, and no special loading and unloading processing is required, which effectively improves the work efficiency and realizes the continuous gluing of the PCB board.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board gluing, and in particular to a PCB board gluing device. Background Art

[0002] In recent years, electronic devices have become increasingly indispensable tools in people's lives. PCB circuit boards, as the carrier for connecting electronic components in electronic devices, can simplify the manufacturing of electronic devices, reduce wiring between electronic parts and reduce costs. In the production of the electronics industry, some electronic components of PCB circuit boards usually need to be coated with silicone. Silicone has good electrical insulation and thermal conductivity, acting as a heat conduction medium and having moisture-proof, dust-proof, corrosion-resistant and shock-proof functions.

[0003] A Chinese patent with authorization announcement number CN115007392B discloses a PCB circuit board silicone coating device, comprising a support base with a placement slot on the right side of the top of the support base; a first support frame, with the first support frame rotatably connected to the left side of the support base, the right side of the bottom of the first support frame contacting the top of the placement slot, and two guide slots on the right side of the first support frame; a coating mechanism, with a coating mechanism provided on the upper right side of the first support frame; and a positioning mechanism, with a positioning mechanism provided in the middle of the right side of the first support frame. This patent achieves the effect of positioning the coating position by turning a handwheel, which drives the first screw to rotate. The first screw drives the pressure plate to move to the left, and the left side of the pressure plate contacts the right side of the template and squeezes the template to the left, fixing the template in the slot and preventing the template from shifting.

[0004] When the existing double-sided gluing device for PCB boards is in operation, the PCB board has three working stations: a gluing station, a flipping station, and a positioning detection station. The PCB board needs to continuously reciprocate between the three stations. After gluing is completed on both sides of the PCB board, a clamping member is required to release the PCB board, and then a new PCB board is replaced for gluing. When the PCB board is replaced, the gluing mechanism and the positioning detection mechanism need to stop working and wait. They can only start working after the new PCB board is replaced, which reduces work efficiency. Summary of the Invention

[0005] The present invention provides a PCB board gluing device, which aims to solve the technical problem of existing PCB board double-sided gluing devices in the related art. When working, after gluing is completed on both sides of the PCB board, a clamping member needs to loosen the PCB board, and then a new PCB board needs to be replaced for gluing. When the PCB board is replaced, the gluing mechanism and the positioning detection mechanism need to stop working and wait, and can only start working after the new PCB board is replaced, which reduces the working efficiency.

[0006] The cam is provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels.

[0007] Beneficial effect: After the PCB board is flipped over, the base starts to move along the track toward the positioning and detection station on the rear side. The expansion portion will be inserted between the pressure plate and the connection table, the compression spring will be stretched, and the PCB board on the upper surface of the unloading table will be completely placed between the pressure plate and the load-bearing surface. The positioning detection mechanism then performs positioning detection on the PCB board that is located on the upper side after flipping over. After the positioning detection is completed, the base moves forward along the track to the gluing station, and the gluing nozzle begins to glue the back of the first PCB board. The base then moves forward along the track to the flipping station for flipping again. At this time, the load-bearing plate is in its initial state, the PCB board that has been glued on both sides is located at the bottom, and the newly installed PCB board is located at the top. The base then moves again toward the positioning and inspection station on the rear side. At this time, the insertion rod is just inserted into the insertion channel, and the rack engages with the one-way gear, driving the roller to rotate. The rotation of the roller will drive the PCB board that has completed the gluing process to slide toward the rear side. The PCB board gradually enters the discharge hole. The push block abuts against the sliding plate, forcing the sliding plates on both sides to slide toward both sides at the same time, so that the PCB board on the supporting surface falls between the two connecting platforms below. The positioning and inspection mechanism then performs positioning inspection on the PCB board. The base moves forward along the track to the gluing station, and the gluing nozzle begins to apply glue to the first side of the PCB board, and this cycle continues. The process of positioning and inspecting the PCB board can be used to realize the loading and unloading operations of the PCB board, eliminating the need for special loading and unloading processes, effectively improving work efficiency and realizing continuous gluing of the PCB board.

[0008] Preferably, the driving assembly includes two insertion rods fixedly mounted on a fixed frame, a rack is provided on the insertion rod, and front-to-back insertion channels are opened on the connecting platforms on both sides at positions corresponding to the insertion rods. A one-way gear is fixedly mounted on the roller, and the one-way gear extends into the insertion channel. When the insertion rod enters the insertion channel, the rack can engage with the one-way gear.

[0009] The effect is that when the insertion rod is inserted into the insertion channel, the rack can engage with the one-way gear, thereby driving the roller to rotate and transporting the PCB board with glue coating.

[0010] Preferably, the pushing member is a pushing block installed on both sides of the fixing frame near the upper end, the pushing block has an inclined pushing surface, the pushing surfaces on both sides are arranged in an eight-shaped shape, and the pushing blocks correspond to the sliding plates on both sides respectively.

[0011] The effect is that the pushing block abuts against the sliding plate, thereby forcing the sliding plates on both sides to slide to both sides at the same time, so that the PCB board on the bearing surface falls between the two connecting platforms below.

[0012] Preferably, the pressing member is a spring block vertically elastically slidably connected to the sliding plate, and the lower end of the spring block extends to the bottom of the sliding plate.

[0013] Preferably, the lower end of the elastic block is a hemispherical structure, and the elastic block is made of a flexible material.

[0014] The effect is that when the spring block contacts the PCB, it can effectively protect the surface of the PCB and avoid scratching the PCB.

[0015] Preferably, a flexible protective layer is provided on the outer peripheral wall of the roller.

[0016] The effect is that the flexible protective layer can increase the friction of the roller, thereby better transporting the PCB board.

[0017] Preferably, a telescopic cylinder is fixedly installed at the bottom of the loading rack, a movable plate is fixedly installed on the telescopic part of the telescopic cylinder, an inclined guide groove is provided on the side wall of the fixed rack, one end of the movable plate penetrates into the guide groove and cooperates with the groove wall of the guide groove.

[0018] Preferably, the supporting plate has a through hole extending vertically therethrough, and the through hole is a rectangular structure.

[0019] Preferably, a compression spring is fixedly mounted on the upper surface of the connecting platform, and a pressure plate is fixedly mounted on the upper end of the compression spring.

[0020] Preferably, an X / Y / Z three-axis motion platform is installed inside the housing, and the mobile frame is installed at the motion end of the X / Y / Z three-axis motion platform.

[0021] By adopting the above technical solution, the present invention has the following beneficial effects: after the PCB board is flipped over, the base begins to move along the track toward the positioning and detection station on the rear side. The expansion portion is inserted between the pressure plate and the connection table, the compression spring is stretched, and the PCB board on the upper surface of the unloading table is completely placed between the pressure plate and the support surface. The positioning detection mechanism then performs a positioning detection on the flipped PCB board located at the top. After the positioning detection is completed, the base moves forward along the track to the gluing station, and the gluing nozzle begins to apply glue to the back of the first PCB board. The base then moves forward along the track to the flipping station for another flip. At this time, the support plate is in its initial state, with the PCB board that has been glued on both sides located at the bottom and the newly installed PCB board located at the top. The base then moves again toward the positioning and inspection station on the rear side. At this time, the insertion rod is just inserted into the insertion channel, and the rack engages with the one-way gear, driving the roller to rotate. The rotation of the roller will drive the PCB board that has completed the gluing process to slide toward the rear side. The PCB board gradually enters the discharge hole. The push block abuts against the sliding plate, forcing the sliding plates on both sides to slide toward both sides at the same time, so that the PCB board on the supporting surface falls between the two connecting platforms below. The positioning and inspection mechanism then performs positioning inspection on the PCB board. The base moves forward along the track to the gluing station, and the gluing nozzle begins to apply glue to the first side of the PCB board, and this cycle continues. The process of positioning and inspecting the PCB board can be used to realize the loading and unloading operations of the PCB board, eliminating the need for special loading and unloading processes, effectively improving work efficiency and realizing continuous gluing of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a cross-sectional view of the present invention.

[0024] Figure 3 It is an exploded schematic diagram of the fixing frame and the base of the present invention.

[0025] Figure 4 It is a front view of the base of the present invention.

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0027] Figure 6 It is a cross-sectional view of the connection platform of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the roller of the present invention.

[0029] Figure 8 It is an exploded schematic diagram of the fixing rack, loading rack and movable plate of the present invention.

[0030] Figure 9 This is a schematic diagram of the state when the insertion rod of the present invention is inserted into the insertion channel.

[0031] Figure 10 This is a schematic diagram of the state when the opening portion of the present invention opens the pressure plate.

[0032] Reference numerals:

[0033] 10. Housing; 11. Moving frame; 12. Gluing nozzle; 13. Positioning detection mechanism; 20. Track; 21. Base; 22. Loading plate; 23. Connecting platform; 24. Sliding plate; 25. Return spring; 26. Spring block; 28. Loading surface; 30. Pressing plate; 31. Compression spring; 32. Chamfered surface; 40. Insertion channel; 41. Mounting cavity; 42. Roller; 43. One-way gear; 50. Fixed Fixed frame; 51. Side plate; 52. Vertical plate; 53. Feed hole; 54. Discharge hole; 60. Loading rack; 61. Unloading table; 62. Perforation; 63. Telescopic cylinder; 64. Moving plate; 65. Sliding part; 66. Guide groove; 67. Positioning plate; 68. Slot; 69. Opening part; 70. Insert rod; 71. Rack; 72. Push block; 80. Support; 81. Drive motor; 83. PCB board. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 10 As shown, a specific embodiment of a PCB board gluing device of the present invention is shown. For ease of understanding, a PCB board 83 is used as an application scenario of the present invention. The PCB board gluing device includes a housing 10, a working module, a carrying module, and a loading and unloading module.

[0036] The working module, the carrying module and the loading and unloading module are all installed in the casing 10. The working module is used to apply glue and perform positioning detection on the PCB board 83. The carrying module is used to clamp the PCB board 83 and drive the PCB board 83 to move and flip. The loading and unloading module is used to load or unload the PCB board 83.

[0037] like Figure 1 As shown, the interior of the casing 10 is a hollow structure, and the shape of the casing 10 is square. The front and rear sides of the casing 10 are provided with rectangular through holes that pass through the front and rear, so as to facilitate the maintenance and replacement of internal parts; the left and right sides of the casing 10 are provided with transparent observation windows, which are convenient for all-round observation of the working conditions inside the device.

[0038] like Figure 1 and Figure 2 As shown, the working module includes a moving frame 11 , a gluing nozzle 12 and a positioning detection mechanism 13 .

[0039] An X / Y / Z three-axis motion platform (not shown in the figure) is installed on the inside of the housing 10, and the mobile frame 11 is installed at the moving end of the X / Y / Z three-axis motion platform, so that the X / Y / Z three-axis motion platform can drive the mobile frame 11 to move up and down, left and right, and front and back.

[0040] The gluing nozzle 12 and positioning detection mechanism 13 are fixedly mounted on the mobile frame 11. The mobile frame 11 can drive the gluing nozzle 12 and positioning detection mechanism 13 to move vertically, horizontally, and forward and backward. The gluing nozzle 12 can apply glue to the PCB board 83 on the lower support module, and the positioning detection mechanism 13 can detect the positioning of the PCB board 83. The above structures are all prior art and will not be described in detail here.

[0041] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 as well as Figure 7 As shown, the carrying module includes a clamping and flipping unit and an upper fixing unit.

[0042] The clamping and flipping unit includes a track 20 , a base 21 , a bearing plate 22 , a connecting platform 23 , a sliding plate 24 , a return spring 25 , a spring block 26 , a bearing surface 28 , a support 80 and a driving motor 81 .

[0043] Rails 20 are fixedly mounted within the housing 10. Two rails 20 are spaced apart on the left and right sides, with each rail 20 extending longitudinally in the front-to-back direction. Bases 21 are slidably mounted on the rails 20 in the front-to-back direction. Slide grooves that mate with the rails 20 are spaced apart on the left and right sides of the bottom of the bases 21, allowing the bases 21 to be assembled on the rails 20 and slide forward and backward along the rails 20.

[0044] A driving structure (not shown in the figure) is also installed in the housing 10 to drive the base 21 to slide back and forth along the track 20. The driving structure can be a cylinder or a screw structure to drive the base 21 to slide.

[0045] Two supports 80 are provided on the upper surface of the base 21 at intervals along the left-right direction. The supports 80 are fixedly mounted on the base 21, and the two supports 80 are respectively close to the left and right sides of the base 21. A support plate 22 is rotatably mounted on the inner side of the two supports 80 via a rotating shaft, and the support plate 22 rotates along an axis extending in the left-right direction. In other words, the left end of the support plate 22 rotates and engages with the support 80 on the left, and the right end of the support plate 22 rotates and engages with the support 80 on the right. A drive motor 81 is fixedly mounted on the left side surface of the left support 80, and the drive motor 81 is fixedly connected to the support plate 22, so that the drive motor 81 can drive the support plate 22 to rotate.

[0046] The carrier plate 22 has a through hole that passes through from top to bottom, and the through hole is a rectangular structure. When the PCB board 83 is fixed on the carrier plate 22, the through hole can facilitate the gluing process on the back of the PCB board 83 after the PCB board 83 is turned over.

[0047] like Figure 4 and Figure 5 As shown, connecting platforms 23 are fixedly mounted on the upper surface of the carrier plate 22, on both the left and right sides of the through hole. The space between the two connecting platforms 23 is used to accommodate the PCB 83, and the distance between the two connecting platforms 23 is the same as the width of the PCB 83. In other words, the opposing surfaces of the left and right connecting platforms 23 serve as clamping surfaces for securing the PCB 83.

[0048] Two sliding plates 24 are slidably installed on the connecting platform 23 on each side. The sliding plates 24 slide horizontally on the connecting platform 23 in the left and right directions. A return spring 25 is provided on the sliding plate 24. One end of the return spring 25 is fixedly connected to the sliding plate 24, and the other end of the return spring 25 is fixedly connected to the connecting platform 23, thereby providing elastic force for returning the sliding plate 24. The two sliding plates 24 on each side are connected together by a fixed plate.

[0049] The moving ends of the sliding plates 24 pass through the inner side of the connecting platform 23 and extend to the placement space for accommodating the PCB board 83. The lower end surface of the sliding plate 24 near the moving end is provided with a plurality of spring blocks 26 (such as Figure 5 As shown in the figure, the spring block 26 is vertically elastically slidably connected to the sliding plate 24, the lower end of the spring block 26 extends to the bottom of the sliding plate 24, and a spring (not shown in the figure) is provided on the spring block 26 to help it reset. In this embodiment, the lower end of the spring block 26 is a hemispherical structure, and the spring block 26 is made of a flexible material.

[0050] When the PCB board 83 is placed on the carrier plate 22, the bottom of the spring block 26 just abuts against the upper surface of the PCB board 83, and the spring on the spring block 26 will be compressed, so that the spring block 26 can limit the PCB board 83, and when the PCB board 83 is turned over, it can prevent the PCB board 83 from falling off.

[0051] In other embodiments, the spring block 26 structure can also be a flexible pad fixed to the bottom of the sliding plate 24. When the PCB board 83 is installed on the supporting plate 22, the flexible pad will be squeezed and deformed by the PCB board 83, that is, the flexible pad will generate friction with the PCB board 83, thereby limiting the movement of the PCB board 83 and preventing the PCB board 83 from slipping when it is flipped.

[0052] The moving end of the sliding plate 24 is located above the PCB board 83, and its purpose is to limit the upper part of the PCB board 83. By limiting the left and right directions and the up and down directions of the PCB board 83, the PCB board 83 is positioned.

[0053] like Figure 5 、 Figure 6 as well as Figure 7 As shown, the left and right connecting platforms 23 are both provided with plug-in channels 40 that pass through from front to back, and the opposite side walls of the two connecting platforms 23 are both provided with installation cavities 41. The installation cavities 41 are located near the rear side and are connected to the plug-in channels 40.

[0054] A roller 42 is rotatably mounted within the mounting cavity 41 and rotates along a vertically extending axis. The outer wall of the roller 42 is flush with the clamping surface of the connecting platform 23 and is provided with a flexible protective layer. In this embodiment, the protective layer may be sponge or rubber.

[0055] A one-way gear 43 is fixedly mounted on the bottom of the roller 42. The one-way gear 43 is coaxial with the roller 42, and the teeth of the one-way gear 43 penetrate into the insertion channel 40. When the roller 42 rotates, it can drive the PCB board 83 inside to slide out to the rear side, thereby realizing the function of unloading the PCB board 83. The details will be explained later.

[0056] like Figure 3 and Figure 5 As shown, the upper fixing unit includes a pressing plate 30 , a pressing spring 31 and a chamfered surface 32 .

[0057] A compression spring 31 is fixedly installed on the upper surface of the connecting platform 23 on both sides of the left and right sides, and a pressure plate 30 is fixedly installed on the upper end of the compression spring 31. In this embodiment, the pressure plate 30 is a U-shaped structure, and the pressure plate 30 has two opposite pressing parts. The two pressing parts are arranged horizontally at intervals along the front and rear directions. The two pressing parts on the pressure plate 30 correspond to the front and rear sliding plates 24 on this side respectively.

[0058] The upper surface of the sliding plate 24 close to the moving end is the bearing surface 28, which corresponds to the pressing part up and down. In the initial state, the distance between the bearing surface 28 and the pressing part is less than the thickness of the PCB board 83, so that another PCB board 83 can be placed on the bearing surface 28 on the four sliding plates 24, and the pressing plate 30 can be pressed tightly on the upper surface of the PCB board 83 to fix the PCB board 83. That is, two PCB boards 83 can be clamped on the top of the bearing plate 22 at the same time. The two PCB boards 83 are arranged at an interval up and down, one PCB board 83 is located on the upper surface of the bearing plate 22, and the other PCB board 83 is located on the bearing surface 28 of the sliding plate 24.

[0059] A chamfered surface 32 is provided at the bottom of the front side surface of the pressing plate 30. The chamfered surface 32 is an inclined surface and gradually tilts downward from the front to the back, so as to facilitate the opening of the pressing plate 30 and the conveying of the PCB board 83 to between the bearing surface 28 and the pressing part. How to convey the PCB board 83 to between the bearing surface 28 and the pressing part will be described in detail later.

[0060] It should be noted that the base 21 slides back and forth along the track 20, so that the carrier plate 22 drives the PCB board 83 to move back and forth. The PCB board 83 has three working stations. When the base 21 is in the middle position, the PCB board 83 is located at the gluing station, and the gluing nozzle 12 applies glue to the PCB board 83; when the base 21 moves to the front side, the PCB board 83 is located at the flipping station, and the driving motor 81 drives the carrier plate 22 to flip 180 degrees, completing the flipping process of the PCB board 83; then the base 21 moves to the back side, and the PCB board 83 is located at the positioning detection station, and the positioning detection mechanism 13 performs positioning detection on the PCB board 83. The PCB board 83 needs to undergo positioning detection before it can be glued.

[0061] like Figure 3 、 Figure 8 、 Figure 9 as well as Figure 10 As shown, the loading and unloading module includes a fixed frame 50, a side plate 51, a vertical plate 52, a loading frame 60, a discharge platform 61, a telescopic cylinder 63, a movable plate 64, a sliding part 65, a positioning plate 67, a support part 69, an insertion rod 70, a rack 71 and a pushing block 72.

[0062] The mounting bracket 50 is fixedly mounted within the housing 10 and is located at the rear of the housing 10, that is, at the rear of the support plate 22. The mounting bracket 50 is U-shaped and comprises two side panels 51 and a vertical panel 52. The vertical panel 52 is vertically disposed and fixed to the housing 10, with the length of the vertical panel 52 extending in the left-right direction. The two side panels 51 are fixedly mounted to the front side of the vertical panel 52, and the two side panels 51 are spaced apart from each other, perpendicular to the vertical panel 52, and arranged in the front-to-back direction.

[0063] The vertical plate 52 is provided with a feed hole 53 and a discharge hole 54. Both the feed hole 53 and the discharge hole 54 are rectangular in structure and extend from front to back through the vertical plate 52. The length of the feed hole 53 and the discharge hole 54 extends in the left-right direction. The discharge hole 54 is spaced apart from the feed hole 53, that is, the discharge hole 54 is located above the feed hole 53.

[0064] The feed hole 53 is used to deliver the PCB board 83 to be processed into the interior of the fixed frame 50, and the discharge hole 54 is used to transport the glue-coated PCB board 83 to the outside of the device. It should be noted that the vertical plate 52 corresponds to the through-hole on the rear side of the housing 10, so a loading mechanism (not shown) is provided on the rear side of the housing 10. The loading mechanism corresponds to the feed hole 53 and can pass the PCB board 83 to be processed through the feed hole 53 and into the interior of the fixed frame 50. The rear side of the housing 10 is also provided with a conveying mechanism (not shown) that corresponds to the discharge hole 54. After the glue-coated PCB board 83 passes through the discharge hole 54, it can be placed on the conveying mechanism, thereby transporting the glue-coated PCB board 83 to the next processing station.

[0065] A loading rack 60 is installed on the inner side of the two side panels 51 for sliding up and down. A discharge platform 61 is provided on the upper surface of the loading rack 60. Side ears are provided on the left and right sides of the bottom of the loading rack 60. The side ears are provided with through holes 62 that pass through the left and right sides. The through holes 62 are rectangular structures, and the length direction of the through holes 62 extends along the front and back direction.

[0066] The two side panels 51 have guide grooves 66 formed on their opposite surfaces. The guide grooves 66 are tilted and gradually tilt upward from the front to the back.

[0067] A telescopic cylinder 63 is fixedly installed at the bottom of the loading rack 60, and a movable plate 64 is fixedly installed on the telescopic part of the telescopic cylinder 63. Both ends of the movable plate 64 have sliding parts 65. The sliding parts 65 at both ends pass through the corresponding through-holes 62 on both sides respectively, and the sliding parts 65 pass into the corresponding guide grooves 66, and the sliding parts 65 slide horizontally with the through-holes 62.

[0068] When the telescopic cylinder 63 extends and retracts, it drives the movable plate 64 to slide forward and backward, and the movable plate 64 rises and falls along the guide slot 66, thereby raising and lowering the loading rack 60. When loading is required, the loading rack 60 rises, and the upper surface of the unloading platform 61 is flush with the lower edge of the feed hole 53. The PCB board 83 to be processed passes through the feed hole 53 and reaches the upper surface of the unloading platform 61. The loading rack 60 then continues to raise the PCB board 83 to the appropriate height, waiting to transfer the PCB board 83 to the sliding plate 24.

[0069] like Figure 8As shown, vertically arranged positioning plates 67 are provided on the left and right sides of the unloading platform 61. There is a slot 68 on the positioning plate 67. The slot 68 is a structure that passes through the left and right sides and is open on the front side. There is a support part 69 above the slot 68, and the length direction of the support part 69 extends along the front-to-back direction.

[0070] Two insertion rods 70 are fixedly mounted on the front side of the vertical plate 52, one on either side of the discharge hole 54. These rods 70 are rectangular in shape, extending longitudinally in the front-to-back direction. They correspond to the insertion channels 40 on the connecting platform 23 on either side. Racks 71 are fixedly mounted on the opposing surfaces of the two insertion rods 70. When the insertion rods 70 are inserted into the insertion channels 40, the racks 71 mesh with the one-way gear 43.

[0071] Pushing blocks 72 are fixedly mounted near the upper ends of both sides of the vertical plate 52. These pusher blocks 72 have inclined pushing surfaces arranged in a figure-eight shape. The pusher blocks 72 correspond to the sliding plates 24 on either side. When the base 21 moves rearward, the pusher blocks 72 abut against the sliding plates 24, forcing the sliding plates 24 to slide simultaneously. This increases the distance between the two sliding plates 24, causing the moving ends of the sliding plates 24 to retract into the interior of the connecting platform 23, thereby causing the PCB 83 on the supporting surface 28 to fall downward.

[0072] At the beginning of the process, the PCB board 83 to be processed must be manually placed on the carrier plate 22, that is, the PCB board 83 is fixed to the inner side of the two connecting platforms 23. At this time, the upper positioning detection mechanism 13 is programmed to first perform positioning detection on the PCB board 83 in this position, and then the glue nozzle 12 begins to apply glue to the PCB board 83. After the glue application on the first side is completed, the base 21 moves forward along the track 20 to the flipping station. The drive motor 81 then drives the carrier plate 22 to flip 180 degrees, completing the flipping of the PCB board 83. The base 21 then begins to move along the track 20 to the positioning detection station on the rear side, which is the location of the fixing frame 50. At the same time, the loading rack 60 rises, and the upper surface of the discharge table 61 is flush with the lower edge of the feed hole 53. The PCB board 83 to be processed passes through the feed hole 53 and reaches the upper surface of the discharge table 61. Then the loading rack 60 continues to drive the PCB board 83 to be processed to rise to a suitable height, waiting to transfer the PCB board 83 to the sliding plate 24.

[0073] At this time, the support portion 69 faces the top of the connecting platform 23 and corresponds to the chamfered surface 32 at the bottom of the pressing plate 30. As the base 21 moves toward the rear side, the support portion 69 is inserted between the pressing plate 30 and the connecting platform 23 (as shown in FIG. Figure 10As shown, the pressing plate 30 is simultaneously pushed downward, stretching the compression spring 31 and causing the pressing plate 30 to fit neatly into the slot 68. At this point, the PCB 83 on the upper surface of the unloading platform 61 is completely positioned between the pressing plate 30 and the supporting surface 28. The positioning detection mechanism 13 then performs a positioning detection on the flipped PCB 83, which is now positioned upward. After this positioning detection is complete, the base 21 moves forward along the track 20 to the gluing station, where the gluing nozzle 12 begins gluing the back surface of the first PCB 83, completing the gluing process on both sides of the first PCB 83.

[0074] Then the base 21 moves forward along the track 20 to the flipping station, and the driving motor 81 drives the carrier plate 22 to flip 180 degrees, completing the flipping of the PCB board 83 again. At this time, the carrier plate 22 is in the initial state, the PCB board 83 with glue applied on both sides is located at the bottom, and the newly installed PCB board 83 is located at the top. Then the base 21 moves to the positioning and detection station on the rear side again. At this time, the insertion rod 70 is just inserted into the insertion channel 40 (as shown in FIG. Figure 9 As shown in the figure, the rack 71 is engaged with the one-way gear 43, driving the roller 42 to rotate. The rotation of the roller 42 drives the PCB board 83 that has been glued to slide to the rear side, and the PCB board 83 gradually enters the discharge hole 54. When the insertion rod 70 is fully inserted into the insertion channel 40, the PCB board 83 that has been glued to pass through the discharge hole 54 and reaches the conveying mechanism on the rear side, and is then conveyed to the next processing station.

[0075] As the insertion rod 70 is inserted to the extreme position of the insertion channel 40, the pushing block 72 abuts against the sliding plate 24, thereby forcing the sliding plates 24 on both sides to slide to both sides at the same time, and the moving end on the sliding plate 24 will shrink into the inside of the connecting platform 23, so that the PCB board 83 on the bearing surface 28 falls between the two connecting platforms 23 below, and then the positioning detection mechanism 13 performs positioning detection on the PCB board 83, and the base 21 moves forward along the track 20 to the gluing station, and the gluing nozzle 12 starts to perform gluing treatment on the first side of the PCB board 83, and this cycle is repeated continuously.

[0076] The working principle of the present invention is as follows: at the beginning of operation, the PCB board 83 to be processed must first be manually placed on the carrier plate 22, that is, fixed to the inner side of the two connecting platforms 23. At this time, through a set program, the upper positioning detection mechanism 13 first performs positioning detection on the PCB board 83 in this position, and then the glue nozzle 12 begins to apply glue to the PCB board 83. After the glue application on the first side is completed, the base 21 moves forward along the track 20 to the flipping station. The driving motor 81 then drives the carrier plate 22 to flip 180 degrees, completing the flipping of the PCB board 83. The base 21 then begins to move along the track 20 to the positioning detection station on the rear side, which is the location of the fixing frame 50. At the same time, the loading rack 60 rises, and the upper surface of the discharge platform 61 is flush with the lower edge of the feed hole 53. The PCB board 83 to be processed passes through the feed hole 53 and reaches the upper surface of the discharge platform 61. Then the loading rack 60 continues to drive the PCB board 83 to be processed to a suitable height, waiting to transfer the PCB board 83 to the sliding plate 24. At this time, the support portion 69 faces the top of the connecting platform 23 and corresponds to the chamfered surface 32 at the bottom of the pressing plate 30. As the base 21 moves toward the rear, the support portion 69 will be inserted between the pressing plate 30 and the connecting platform 23 (as shown in the figure). Figure 10 As shown), the pressure plate 30 is pushed downward at the same time, the compression spring 31 will be stretched, and the pressure plate 30 just enters the slot 68. At this time, the PCB board 83 on the upper surface of the discharge table 61 is completely placed between the pressure plate 30 and the bearing surface 28. Then the positioning detection mechanism 13 performs positioning detection on the PCB board 83 located at the top after being turned over. After completing the positioning detection, the base 21 moves forward along the track 20 to the gluing station, and the gluing nozzle 12 begins to glue the back of the first PCB board 83, completing the gluing process on both sides of the first PCB board 83. Then the base 21 moves forward along the track 20 to the flipping station, and the driving motor 81 drives the carrier plate 22 to flip 180 degrees, completing the flipping of the PCB board 83 again. At this time, the carrier plate 22 is in the initial state, the PCB board 83 that has been glued on both sides is located at the bottom, and the newly installed PCB board 83 is located at the top. Then the base 21 moves to the positioning detection station on the rear side again. At this time, the insertion rod 70 is just inserted into the insertion channel 40 (as shown Figure 9As shown in the figure, the rack 71 is engaged with the one-way gear 43, driving the roller 42 to rotate. The rotation of the roller 42 drives the PCB board 83 that has been glued to slide to the rear side, and the PCB board 83 gradually enters the discharge hole 54. When the insertion rod 70 is fully inserted into the insertion channel 40, the PCB board 83 that has been glued to pass through the discharge hole 54 and reaches the conveying mechanism on the rear side, and is then conveyed to the next processing station. As the insertion rod 70 is inserted to the extreme position of the insertion channel 40, the pushing block 72 abuts against the sliding plate 24, thereby forcing the sliding plates 24 on both sides to slide to both sides at the same time, and the moving end on the sliding plate 24 will shrink into the inside of the connecting platform 23, so that the PCB board 83 on the bearing surface 28 will fall between the two connecting platforms 23 below, and then the positioning detection mechanism 13 will perform positioning detection on the PCB board 83, and the base 21 will move forward along the track 20 to the gluing station, and the gluing nozzle 12 will start to perform gluing treatment on the first side of the PCB board 83, and this cycle will be repeated.

[0077] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A PCB board gluing device, comprising: The housing and the mobile frame are provided with a glue coating nozzle and a positioning detection mechanism; the housing is also provided with a carrying module and a loading and unloading module; The carrying module includes a base that is slidably mounted on the casing in the front and rear directions, a carrying plate is rotatably mounted on the base along an axis extending in the left and right directions, connecting platforms are provided on the left and right sides of the carrying plate, rollers are rotatably mounted on the opposite surfaces of the connecting platforms along the vertical axis, sliding plates are elastically slidably mounted on the upper and left sides of the connecting platforms, the sliding plates pass through the connecting platforms, and a pressing piece is provided at the bottom of the side where the sliding plates on both sides are close to each other, and a pressure plate is elastically connected to the upper and lower surfaces of the connecting platforms, and a slope is provided on the front side of the pressure plate; The loading and unloading module includes a fixed frame arranged in the casing, with a discharge hole and a feed hole vertically spaced apart on the fixed frame, a loading frame slidingly mounted on the inner side of the fixed frame, positioning plates are provided on the left and right sides of the loading frame, and the positioning plates have slots and a support portion, a driving component that drives the roller to rotate is provided on the fixed frame, and a pushing member that can push the sliding plate to slide so that the sliding plates on both sides are away from each other is also provided on the fixed frame; The drive assembly includes two plug rods fixedly mounted on a fixed frame, each of which is provided with a rack. Connecting channels that pass through the connectors are provided on the connecting platforms on both sides at positions corresponding to the plug rods. A one-way gear is fixedly mounted on the roller, and the one-way gear extends into the connecting channel. When the plug rod enters the connecting channel, the rack can mesh with the one-way gear. The pushing member is a pushing block installed on both sides of the fixed frame near the upper end. The pushing block has an inclined pushing surface. The pushing surfaces on both sides are arranged in an eight-shaped shape, and the pushing blocks correspond to the sliding plates on both sides respectively. A telescopic cylinder is fixedly installed at the bottom of the loading rack, a movable plate is fixedly installed on the telescopic part of the telescopic cylinder, an inclined guide groove is provided on the side wall of the fixed rack, one end of the movable plate penetrates into the guide groove and cooperates with the groove wall of the guide groove.

2. A PCB board gluing device according to claim 1, characterized in that: The pressing member is a spring block vertically elastically slidably connected to the sliding plate, and the lower end of the spring block extends to the bottom of the sliding plate.

3. A PCB board gluing device according to claim 2, characterized in that: The lower end of the elastic block is a hemispherical structure, and the elastic block is made of a flexible material.

4. A PCB board gluing device according to any one of claims 1 to 3, characterized in that: A flexible protective layer is provided on the outer peripheral wall of the roller.

5. A PCB board gluing device according to claim 1, characterized in that: The supporting plate is provided with a through hole which passes through from top to bottom, and the through hole is a rectangular structure.

6. A PCB board gluing device according to claim 5, characterized in that: A compression spring is fixedly installed on the upper surface of the connecting platform, and a pressure plate is fixedly installed on the upper end of the compression spring.

7. The PCB board gluing device according to claim 1, characterized in that: An X / Y / Z three-axis motion platform is installed inside the casing, and the mobile frame is installed at the motion end of the X / Y / Z three-axis motion platform.

Images