Automatic gluing device for circuit board

Abstract

The invention discloses an automatic gluing device for a circuit board, which comprises a main body frame, a conveying assembly is arranged on the main body frame, and a positioning cylinder is arranged on the side surface of the conveying assembly; a front-and-back linear conveying module is arranged on the main body frame, a left-and-right linear conveying module is arranged on a sliding block of the front-and-back linear conveying module, and an up-and-down linear conveying module is arranged on a sliding block of the left-and-right linear conveying module; a horizontal adjusting frame is arranged on a sliding block of the up-down linear conveying module, and an equipment platform is arranged on the horizontal adjusting frame; an ionic air knife, an air outlet assembly and a visual detection device are arranged on the equipment platform, a rotary air cylinder is arranged on the side face of the equipment platform, and a gluing device is arranged on the rotary air cylinder; the main body frame is further provided with a control assembly, and the control assembly is electrically connected with the ion air knife, the air outlet assembly, the visual detection device and the gluing device. Static electricity is removed through the ionic air knife, and dust is removed in cooperation with the air outlet assembly; the working modes of the gluing device can be switched, the glue feeding amount can be adjusted in a matched mode, and the universality is good.

Description

Technical Field

[0001] The invention belongs to the field of integrated circuit processing, and particularly relates to an automatic gluing device for circuit boards. Background Art

[0002] During the processing of integrated circuit boards, alignment and gluing are often required. The gluing serves to secure components, provide moisture-proof insulation, and provide shock protection. It also enhances the bonding strength between components and circuit boards, reducing the risk of component detachment due to vibration or temperature changes. Patent publication number CN119208205A discloses an integrated circuit production and processing device, comprising a base, the base being provided with a positioning mechanism for facilitating the fixing of the integrated circuit board, the base being provided with a gluing mechanism for facilitating the gluing and packaging, and the base being provided with a collection mechanism for facilitating the recovery of the colloid, the positioning mechanism comprising a vertical rod, the gluing mechanism comprising a bracket, a first T-shaped slider, a glue storage barrel, and a valve plate, and the collection mechanism comprising a constant temperature box, a collection box, a second motor, an arc-shaped slide bar, and an arc-shaped scraper. The existing publicly available gluing devices do not have dust removal and static electricity removal functions, so dust easily gathers on the circuit board, affecting the gluing effect; if dust removal or static electricity removal is required, manual operation is required, which is cumbersome and has a low degree of automation; at the same time, the working mode of the gluing device is relatively single, and the amount of glue cannot be accurately controlled; the amount of glue required is often different in different areas of the circuit board; sometimes continuous gluing is required, and sometimes intermittent gluing is required. The existing gluing device has a single function and cannot be switched between continuous mode and intermittent mode, and has poor versatility. Secondly, the existing gluing device has a lot of glue overflow, and a collection mechanism needs to be set up to deal with the excess glue, resulting in poor gluing effect. Therefore, it is necessary to design an automatic gluing device for circuit boards to overcome the above difficulties. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention designs an automatic gluing device for circuit boards. This device utilizes an ion air knife installed on the platform to remove static electricity, combined with an exhaust assembly to remove dust. The device's operating modes can be easily switched, and the amount of glue fed can be adjusted, resulting in excellent versatility. Furthermore, the device also features a cleaning function to prevent glue from solidifying and sticking.

[0004] The object of the present invention is achieved through the following technical solutions: an automatic gluing device for circuit boards, comprising a main frame, a conveying component for conveying products is provided on the main frame, and a positioning cylinder is provided on the side of the conveying component; a front and rear linear conveying module is provided on the main frame, a left and right linear conveying module is provided on the slider of the front and rear linear conveying module, and an upper and lower linear conveying module is provided on the slider of the left and right linear conveying module; a horizontal adjustment frame is provided on the slider of the upper and lower linear conveying module, and an equipment platform is provided on the horizontal adjustment frame; an ion air knife, an air outlet component and a visual detection device are provided on the equipment platform, a rotating cylinder is provided on the side of the equipment platform, and a gluing device is provided on the rotating cylinder; a control component is also provided on the main frame, and the control component is electrically connected to the ion air knife, air outlet component, visual detection device and gluing device.

[0005] Preferably, a compressor is further provided on the equipment platform, and a storage tank is further provided in the main frame; the compressor is electrically connected to the control component, and the compressor is connected to the air outlet component through a pipeline; the compressor is connected to the storage tank through a pipeline, and the storage tank is connected to the gluing device through a pipeline.

[0006] Preferably, the main frame is provided with a limiting track, and the slider of the front and rear linear transport module is slidably installed on the limiting track; the conveying assembly includes a conveyor belt for placing materials, and the conveyor belts are arranged in pairs; the positioning cylinder is arranged adjacent to the conveyor belt; the horizontal adjustment frame is provided with an equipment platform that can move horizontally relative to it, and the horizontal adjustment frame is fixedly installed with a guide rod, and a screw rod rotatably connected to the horizontal adjustment frame is provided below the guide rod, and a handle is fixedly installed at the end of the screw rod; the equipment platform is sleeved and installed on the guide rod, and the equipment platform and the screw rod are engaged with each other, and the equipment platform moves relative to the horizontal adjustment frame when the handle is rotated.

[0007] The compressor supplies air to the exhaust assembly and the gluing device, and the control assembly sends operating instructions to the compressor. This automatically removes dust from the exhaust assembly, and the compressor ventilates the storage tank, allowing the white glue in the tank to flow smoothly into the gluing device. The front-to-back linear transport module, the left-to-right linear transport module, and the top-to-bottom linear transport module work together to allow the horizontal adjustment frame to move freely within three dimensions, facilitating the gluing device's gluing of the integrated circuit board (IC) mounted on the transport assembly. The initial position of the equipment platform is adjusted using a handle and screw to prevent the gluing device from moving significantly left or right during the actual gluing process. When the IC board passes directly under the equipment platform, the positioning cylinder activates, securing the IC board relative to the transport assembly. Then the air outlet component will start working first, and then the ion air knife will remove static electricity from the surface of the integrated circuit board; after the dust removal and static electricity removal processes are completed, the visual inspection device will scan the integrated circuit board to determine whether the dust removal and static electricity removal are qualified; the visual inspection device here is an existing standard part, and the specific working principle is to collect images through image magnification, and then analyze whether there is dust on the integrated circuit board through the control component; after the surface treatment process of the integrated circuit board is qualified, the gluing device can start the gluing process.

[0008] Preferably, the gluing device includes a main shell, which is provided with a gluing head assembly fixedly connected to the main shell; the gluing head assembly includes a main feed channel, and the main feed channel is provided with a branch channel connected to the main feed channel; the main feed channel is provided with a one-way valve assembly, and the main feed channel is connected to the storage tank through a pipeline; the open end of the branch channel is provided with a adapter assembly; the gluing device also includes a valve stem, and a sealing ball is fixedly installed at the end of the valve stem, and the gluing head assembly includes a discharge head and a sealing gasket, which is installed on the discharge head; a first spring is provided between the valve stem and the main shell, and the sealing ball rests on the sealing gasket in the default state; a sliding switch is provided in the main shell that is slidably connected to the main shell, and the sliding switch is fixedly installed on the valve stem, and the outer layer of the main shell is provided with a first cylinder that pushes the sliding switch to move; an infrared sensor is also provided on the main frame, and the infrared sensor is also electrically connected to the control component, and the infrared sensor is arranged close to the positioning cylinder.

[0009] Preferably, the gluing head assembly also includes a gluing head body, a sealing ring and a fixed sleeve, and the gluing head body is respectively provided with a main feed channel and a branch channel that are interconnected; the gluing head body is also provided with a discharge head threadedly connected thereto, and the sealing gasket is arranged between the discharge head and the gluing head body; a valve stem is inserted into the gluing head body, and a sealing ring is provided between the gluing head body and the valve stem; a fixed sleeve is provided between the sealing ring and the gluing head body, and the fixed sleeve is tightly fitted with the gluing head body; the discharge head is respectively connected to the main feed channel and the branch channel; a circumferential limiting portion is provided in the main shell body, a retaining spring is installed on the valve stem, and a first spring is provided between the retaining spring and the circumferential limiting portion.

[0010] Preferably, a one-way valve assembly is provided on the main feed channel, and the one-way valve assembly includes a valve seat and a diaphragm; the valve seat is fixedly mounted on the main feed channel, and a diaphragm is fixedly mounted on the valve seat, and the diaphragm can be elastically deformed relative to the valve seat.

[0011] A one-way valve assembly is installed here to prevent glue backflow. When glue enters the main feed channel from the storage tank, the diaphragm elastically deforms, allowing the glue to flow along the main feed channel into the discharge head and then be ejected from the discharge head. When the valve stem closes the discharge head, the diaphragm returns to its original state, preventing glue from flowing back into the storage tank and preventing used glue from mixing with the glue in the storage tank and contaminating it.

[0012] Preferably, the open end of the branch channel is provided with an adapter assembly; the adapter assembly includes a pipe joint, a seal, a second spring, and an axial plug, and the pipe joint is threadedly connected to the branch channel; the open end of the branch channel is tightly fitted with a seal, and the axial plug is arranged in the branch channel and close to the seal; a water outlet is provided in the branch channel, and a second spring is provided between the water outlet and the step of the axial plug; in the default state, the axial plug rests on the seal; the pipe joint is provided with a cylindrical protrusion toward the inside of the axial plug, and the cylindrical protrusion can move relative to the axial plug when the pipe joint and the branch channel rotate.

[0013] In the default state, the pipe joint and branch channel are not fully rotated. The second spring forces the axial plug against the seal, closing the branch channel. When the sealing ball at the end of the valve stem rests against the discharge head, the discharge head is closed, preventing glue from dispensing. When the valve stem is away from the discharge head, the discharge head is open. When glue application is complete, the valve stem automatically approaches the discharge head, creating negative pressure within the head body. This forces glue to flow back into the head body, preventing it from dripping onto the integrated circuit board. After glue application is complete, the head assembly is often cleaned to prevent glue clumping. By rotating the pipe joint and branch channel into position, the cylindrical protrusion on the pipe joint pushes the cylindrical plug away from the seal, opening the branch channel. The pipe joint is then connected to a water source via a pipe, and the first cylinder controls the opening of the head body, allowing water to flow from the discharge head during cleaning. Since a one-way valve assembly is provided on the main feed channel, water will not flow into the storage tank.

[0014] Preferably, an open groove is provided on the main shell, and the outer wall of the sliding switch and the side wall of the open groove are arranged in contact with each other; the outer layer of the main shell is provided with a cylinder bracket and a guide bracket arranged side by side, and a first cylinder is fixedly mounted on the cylinder bracket; a columnar limiter that can move axially relative to the guide bracket is provided on the guide bracket, and a second cylinder is provided in the groove of the sliding switch, and a limit protrusion is provided on the piston shaft of the second cylinder; the second cylinder and the columnar limiter are arranged perpendicular to each other, and the second cylinder controls the radial movement of the limit protrusion relative to the columnar limiter when working.

[0015] Preferably, a first magnet is provided in the limiting protrusion, and a limiting groove is provided in the cylindrical limiting body; the outer contour of the limiting protrusion and the outer contour of the limiting groove are adapted to each other; a first Hall switch is provided at the end of the limiting groove and is arranged facing the first magnet, and the first Hall switch is electrically connected to the control component; a limiting channel is provided on the guide bracket, and the cylindrical limiting body is slidably installed in the limiting channel; a first knob is provided on the side of the guide bracket and is rotatably connected to the guide bracket, and the first knob is threadedly connected to the cylindrical limiting body; when the first knob is rotated, the cylindrical limiting body moves along the axial direction of the limiting channel, and the limiting channel and the valve stem are arranged parallel to each other; the first cylinder is also electrically connected to the control component.

[0016] Preferably, the end of the main shell is provided with a cover body fixedly connected thereto, and the cover body is provided with a second knob threadedly connected thereto; the sliding switch is fixedly connected to the valve stem, and a second magnet is installed at the end of the valve stem, and a second Hall switch is provided at the end of the second knob, the second magnet is set toward the second Hall switch, and the second Hall switch is also electrically connected to the control component; a push block is provided on the piston shaft of the first cylinder, and the push block is arranged adjacent to the sliding switch; a third magnet is provided on the push block, and the head of the first cylinder is provided with a third Hall switch set toward the third magnet, and the third Hall switch is electrically connected to the control component.

[0017] By providing a sealing ring and a fixed sleeve on the glue head body, a better seal is achieved between the glue head body and the valve stem, and the valve stem and the glue head body can move axially relative to each other. The equipment sealing ring prevents glue from overflowing, so that glue can only be sprayed from the discharge head. By providing a first spring, a retaining ring, and a circumferential limiter, the valve stem can automatically reset when the sliding switch on the valve stem is not pushed by the first cylinder. In this way, the sealing ball on the valve stem can abut against the discharge head by default, facilitating the control of glue spraying.

[0018] When gluing the edges of integrated circuit boards, the glue feed volume is often large, necessitating the use of continuous gluing mode. The second cylinder controls the extension of the limit protrusion, which then fits snugly within the limit groove of the cylindrical limiter. Rotating the first knob adjusts the movement of the cylindrical limiter along the limit channel. A first Hall switch is located at the end of the limit groove, adjusting the spacing between the first Hall switch and the limit protrusion. In continuous gluing mode, only the first Hall switch is energized; the second and third Hall switches are de-energized. When the first cylinder controls the movement of the valve stem, the stem moves the sliding switch, which in turn moves the first magnet on the limit protrusion relative to the first Hall switch. When the first magnet and the first Hall switch align, the first Hall switch sends an electrical signal to the control assembly, which in turn sends a working instruction to maintain the first cylinder in the extended position, pushing the sliding switch away from the dispensing head. The gluing head assembly is now in continuous gluing mode, and the glue discharge volume can be adjusted adaptively. Here, the position of the first Hall switch can be used to conveniently control the extension stroke of the first cylinder, thereby controlling the amount of glue output; when the overall gluing of a single integrated circuit board is completed, the positioning cylinder releases the integrated circuit board; then the integrated circuit board is driven away from the gluing device by the conveying component. When the positioning cylinder is working, the infrared sensor detects the movement of the integrated circuit board, and the control component sends a stop working instruction to the first cylinder, and the first cylinder contracts, so that the gluing head assembly is always in the closed state. During the continuous gluing process, the visual inspection device scans the components on the integrated circuit board. When the position where gluing is required changes, the visual inspection device sends an electrical signal to the control component; the control component then sends a working instruction to the first cylinder, so that the first cylinder can control the on and off state of the gluing head assembly at any time.

[0019] When interval gluing is required on a specific area of ​​the integrated circuit board, the second cylinder retracts the stopper protrusion, ensuring it is completely within the groove of the sliding switch. This prevents the stopper protrusion from interfering with the cylindrical stopper, allowing the valve stem and sliding switch to extend and retract normally. In interval gluing mode, the first Hall effect switch is de-energized, while the second and third Hall effect switches are energized. Before the first cylinder is activated, the distance between the second magnet and the second Hall effect switch is adjusted by turning the second knob, thereby controlling the maximum extension and retraction stroke of the valve stem. The visual inspection device sends an initial working instruction to the first cylinder through the control component, so that the first cylinder extends, and the push block of the first cylinder pushes the sliding switch to move, so that the second magnet at the end of the valve stem approaches the second Hall switch; then the second Hall switch sends an electrical signal to the control component, and the control component controls the first cylinder to retract; so that the valve stem approaches the discharge head and blocks the discharge head; when the first cylinder retracts into place, the third magnet approaches the third Hall switch; the third Hall switch sends an electrical signal to the control component, and the control component controls the first cylinder to extend, so that the valve stem moves away from the discharge head and the glue head body is in an open state; then the electrical signal is detected by the second and third Hall switches, thereby controlling the reciprocating extension and contraction of the first cylinder, so that intermittent glue can be applied. When the intermittent glue application of a module on the integrated circuit board is completed, the visual inspection device sends an electrical signal to the control component, and the control component sends a stop working instruction to the first cylinder, and the first cylinder is in a retracted state, so that the glue head body is in a closed state.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting an ion air knife, an air outlet component and a gluing device, static electricity removal, dust removal and gluing processes can be realized when the equipment platform moves, with higher integration and better versatility; at the same time, the working state is detected by a visual detection device, and an electrical signal is sent to the control component through the visual detection device, so that the control component can send different working instructions in time; 2. The gluing device has two modes: continuous gluing and intermittent gluing, which is convenient for switching the working mode through the second cylinder and the limit protrusion, and has good versatility; 3. In the continuous gluing mode, the stroke of the valve stem is adjusted by the first knob, In interval mode, the stroke of the valve stem is adjusted by the second knob. The glue feeding amount can be adjusted separately in both modes, which allows for a wider range of usage scenarios. 4. The glue head assembly includes a main feed channel and a branch channel, which can control glue feeding and water feeding respectively. The one-way valve assembly is used to prevent glue backflow and prevent water from entering the storage tank when the glue head body is cleaned. The adapter assembly is used to easily connect to an external water source to clean the glue head body, preventing glue from clumping and affecting subsequent glue application. 5. The movement of the sliding switch can be controlled by a single first cylinder. When the sliding switch moves, the valve stem moves, and when the valve stem moves, the conduction state of the discharge head can be easily controlled. There is a chamber inside the glue head body. When the discharge head is closed, negative pressure is generated inside the glue head body, so that the glue does not drip out, and a large amount of glue is prevented from dripping onto the integrated circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention; Figure 2 A three-dimensional diagram of the present invention with the main frame hidden; Figure 3 This is a schematic diagram of the working status of the ion air knife, air outlet assembly and glue device; Figure 4 It is a three-dimensional diagram of the gluing device; Figure 5 This is the internal structure diagram of the glue-spraying device; Figure 6 for Figure 5 A partial enlarged view of position A in the middle; Figure 7 for Figure 5 A partial enlarged view of position B in the middle; Figure 8 This is a diagram of the internal structure of the glue head assembly; Figure 9 This is an exploded view of the gluing device; Figure 10 A perspective view of the main housing; Markings in the figure: 1. Main frame; 2. Conveying assembly; 201. Conveyor belt; 3. Positioning cylinder; 4. Front and rear linear transport module; 5. Left and right linear transport module; 6. Up and down linear transport module; 7. Horizontal adjustment frame; 71. Guide rod; 72. Screw rod; 73. Handle; 8. Equipment platform; 9. Gluing device; 91. Main shell; 92. Gluing head assembly; 921. Main feed channel; 922. Branch channel; 923. Discharge head; 924. Sealing gasket; 925. Gluing head body; 926. Sealing ring; 927. Fixed sleeve; 928. Water outlet; 93. Valve stem; 94. Sealing ball; 95. First spring; 96. Sliding switch; 97. Circumferential limit part; 98. Retaining spring; 99. Opening groove; 910. Columnar limit body; 911. Second cylinder; 912. Limiting protrusion ;913. First magnet;914. Limiting groove;915. First Hall switch;10. Ion air knife;11. Air outlet assembly;12. Visual detection device;13. Rotating cylinder;14. Control assembly;15. Compressor;16. Storage tank;17. Limiting track;18. One-way valve assembly;181. Valve seat;182. Diaphragm;19. Adapter assembly;191. Pipe joint;192. Seal;193. Second spring;194. Shaft plug;195. Column protrusion;20. First cylinder;21. Infrared sensor;22. Cylinder bracket;23. Guide bracket;24. Limiting channel;25. First knob;26. Cover;27. Second knob;28. Second magnet;29. Second Hall switch;30. Push block;31. Third magnet;32. Third Hall switch. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings: like Figures 1 to 10 As shown, this embodiment discloses an automatic gluing device 9 for circuit boards, including a main frame 1, a conveying component 2 for conveying products is provided on the main frame 1, and a positioning cylinder 3 is provided on the side of the conveying component 2; a front and rear linear conveying module 4 is provided on the main frame 1, and a left and right linear conveying module 5 is provided on the slider of the front and rear linear conveying module 4, and an upper and lower linear conveying module 6 is provided on the slider of the left and right linear conveying module 5; a horizontal adjustment frame 7 is provided on the slider of the upper and lower linear conveying module 6, and an equipment platform 8 is provided on the horizontal adjustment frame 7; an ion air knife 10, an air outlet component 11 and a visual detection device 12 are provided on the equipment platform 8, a rotating cylinder 13 is provided on the side of the equipment platform 8, and a gluing device 9 is provided on the rotating cylinder 13; a control component 14 is also provided on the main frame 1, and the control component 14 is electrically connected to the ion air knife 10, the air outlet component 11, the visual detection device 12 and the gluing device 9.

[0023] A compressor 15 is also provided on the equipment platform 8, and a storage tank 16 is also provided in the main frame 1; the compressor 15 is electrically connected to the control component 14, and the compressor 15 is connected to the air outlet component 11 through a pipeline; the compressor 15 is connected to the storage tank 16 through a pipeline, and the storage tank 16 is connected to the gluing device 9 through a pipeline. The main frame 1 is provided with a limiting rail 17, and the slider of the front and rear linear transport module 4 is slidably installed on the limiting rail 17; the conveying assembly 2 includes a conveyor belt 201 for placing materials, and the conveyor belts 201 are arranged in pairs; the positioning cylinder 3 is arranged adjacent to the conveyor belt 201; the horizontal adjustment frame 7 is provided with an equipment platform 8 that can move horizontally relative to it, and the horizontal adjustment frame 7 is fixedly installed with a guide rod 71, and a screw rod 72 rotatably connected to the horizontal adjustment frame 7 is provided below the guide rod 71, and a handle 73 is fixedly installed at the end of the screw rod 72; the equipment platform 8 is sleeved and installed on the guide rod 71, and the equipment platform 8 and the screw rod 72 are engaged with each other. When the handle 73 is rotated, the equipment platform 8 moves relative to the horizontal adjustment frame 7.

[0024] The glue-spraying device 9 includes a main housing 91, on which a glue-spraying head assembly 92 is fixedly connected; the glue-spraying head assembly 92 includes a main feed channel 921, on which a branch channel 922 is connected; the main feed channel 921 is provided with a one-way valve assembly 18, and the main feed channel 921 is connected to the storage tank 16 through a pipeline; the open end of the branch channel 922 is provided with an adapter assembly 19; the glue-spraying device 9 also includes a valve stem 93, at the end of which a sealing ball 94 is fixedly installed, and the glue-spraying head assembly 92 includes a discharge head 923 and a Sealing gasket 924, sealing gasket 924 is installed on the discharge head 923; a first spring 95 is provided between the valve stem 93 and the main shell 91, and the sealing ball 94 rests on the sealing gasket 924 in the default state; a sliding switch 96 is provided in the main shell 91 and is slidably connected to it, and the sliding switch 96 is fixedly installed on the valve stem 93, and the outer layer of the main shell 91 is provided with a first cylinder 20 for pushing the sliding switch 96 to move; an infrared sensor 21 is also provided on the main frame 1, and the infrared sensor 21 is also electrically connected to the control component 14, and the infrared sensor 21 is arranged close to the positioning cylinder 3. The glue head assembly 92 also includes a glue head body 925, a sealing ring 926 and a fixed shaft sleeve 927. The glue head body 925 is provided with a main feed channel 921 and a branch channel 922 that are interconnected. The glue head body 925 is also provided with a discharge head 923 that is threadedly connected to it. The sealing gasket 924 is provided between the discharge head 923 and the glue head body 925. A valve stem 93 is inserted into the glue head body 925. The glue head body 925 is connected to the valve stem 93. A sealing ring 926 is provided between the rods 93; a fixed sleeve 927 is provided between the sealing ring 926 and the caulking head body 925, and the fixed sleeve 927 is tightly connected to the caulking head body 925; the discharge head 923 is connected to the main feed channel 921 and the branch channel 922 respectively; a circumferential limiter 97 is provided within the main housing 91, and a retaining spring 98 is mounted on the valve stem 93, with a first spring 95 disposed between the retaining spring 98 and the circumferential limiter 97. A one-way valve assembly 18 is provided on the main feed channel 921, comprising a valve seat 181 and a diaphragm 182; the valve seat 181 is fixedly mounted on the main feed channel 921, and a diaphragm 182 is fixedly mounted on the valve seat 181, and the diaphragm 182 can elastically deform relative to the valve seat 181.The open end of the branch channel 922 is provided with an adapter assembly 19; the adapter assembly 19 includes a pipe joint 191, a seal 192, a second spring 193, and an axial plug 194, and the pipe joint 191 is threadedly connected to the branch channel 922; the open end of the branch channel 922 is tightly fitted with a seal 192, and the axial plug 194 is arranged in the branch channel 922 and close to the seal 192; a water outlet 928 is provided in the branch channel 922, and a second spring 193 is provided between the water outlet 928 and the step of the axial plug 194; in the default state, the axial plug 194 rests on the seal 192; the pipe joint 191 is provided with a columnar protrusion 195 facing the inside of the axial plug 194, and the columnar protrusion 195 can move relative to the axial plug 194 when the pipe joint 191 and the branch channel 922 rotate.

[0025] An opening groove 99 is provided on the main shell 91, and the outer wall of the sliding switch 96 is fitted with the side wall of the opening groove 99; the outer layer of the main shell 91 is provided with a cylinder bracket 22 and a guide bracket 23 arranged side by side, and the first cylinder 20 is fixedly installed on the cylinder bracket 22; a columnar limiter 910 that can move axially relative to the guide bracket 23 is provided, and a second cylinder 911 is provided in the groove of the sliding switch 96, and a limiting protrusion 912 is provided on the piston shaft of the second cylinder 911; the second cylinder 911 and the columnar limiter 910 are arranged perpendicular to each other, and the second cylinder 911 controls the radial movement of the limiting protrusion 912 relative to the columnar limiter 910 when working. A first magnet 913 is provided in the limiting protrusion 912, and a limiting groove 914 is provided in the columnar limiting body 910; the outer contour of the limiting protrusion 912 is adapted to the outer contour of the limiting groove 914; the end of the limiting groove 914 is provided with a first Hall switch 915 arranged toward the first magnet 913, and the first Hall switch 915 is electrically connected to the control component 14; a limiting channel 24 is provided on the guide bracket 23, and the columnar limiting body 910 is slidably installed in the limiting channel 24; a first knob 25 is provided on the side of the guide bracket 23 for rotation therewith, and the first knob 25 is threadedly connected to the columnar limiting body 910; when the first knob 25 is rotated, the columnar limiting body 910 moves along the axial direction of the limiting channel 24, and the limiting channel 24 and the valve stem 93 are arranged parallel to each other; the first cylinder 20 is also electrically connected to the control component 14. The end of the main shell 91 is provided with a cover body 26 fixedly connected to it, and the cover body 26 is provided with a second knob 27 threadedly connected to it; the sliding switch 96 is fixedly connected to the valve stem 93, and the end of the valve stem 93 is installed with a second magnet 28, and the end of the second knob 27 is provided with a second Hall switch 29, the second magnet 28 is set toward the second Hall switch 29, and the second Hall switch 29 is also electrically connected to the control component 14; a push block 30 is provided on the piston shaft of the first cylinder 20, and the push block 30 is arranged adjacent to the sliding switch 96; a third magnet 31 is provided on the push block 30, and the head of the first cylinder 20 is provided with a third Hall switch 32 set toward the third magnet 31, and the third Hall switch 32 is electrically connected to the control component 14.

[0026] The specific operation process of this embodiment is as follows: the compressor 15 can supply air to the air outlet assembly 11 and the gluing device 9, and the control assembly 14 sends a work instruction to the compressor 15; in this way, the air outlet assembly 11 can automatically remove dust, and the compressor 15 ventilates the storage tank 16, so that the white glue in the storage tank 16 can smoothly enter the gluing device 9. Through the cooperation of the front and rear linear transport modules 4, the left and right linear transport modules 5 and the upper and lower linear transport modules 6, it is convenient to move the horizontal adjustment frame 7 to any position in the three-dimensional space, so as to facilitate the gluing process of the integrated circuit board on the conveying assembly 2 by the gluing device 9. The initial position of the equipment platform 8 is adjusted by the handle 73 and the screw rod 72 to prevent the gluing device 9 from moving left and right significantly during the formal gluing. When the integrated circuit board passes directly under the equipment platform 8, the positioning cylinder 3 works, so that the integrated circuit board remains fixed relative to the conveying assembly 2. Then the air outlet component 11 will start working first, and then the ion air knife 10 will perform static electricity removal on the surface of the integrated circuit board; after the dust removal and static electricity removal processes are completed, the visual inspection device 12 scans the integrated circuit board to determine whether the dust removal and static electricity removal are qualified; the visual inspection device 12 here is an existing standard part, and the specific working principle is to collect through image magnification, and then analyze whether there is dust on the integrated circuit board through the control component 14; after the surface treatment process of the integrated circuit board is qualified, the gluing device 9 can start the gluing process.

[0027] A one-way valve assembly 18 is provided to prevent glue from flowing back. When glue enters the main feed channel 921 from the storage tank 16, the diaphragm 182 undergoes elastic deformation, and then the glue can enter the discharge head 923 along the main feed channel 921, and then be ejected from the discharge head 923. When the valve stem 93 closes the discharge head 923, the diaphragm 182 is reset to its initial state, and the glue will not flow back into the storage tank 16, thus preventing the used glue from mixing and contaminating the glue in the storage tank 16. In the default state, the pipe joint 191 and the branch channel 922 are not rotated into place. At this time, the axial plug 194 rests on the seal 192 under the action of the second spring 193, so that the branch channel 922 is in a closed state. When the sealing ball 94 at the end of the valve stem 93 rests on the discharge head 923, the discharge head 923 is in a closed state and glue cannot be ejected. When the end of the valve stem 93 is away from the discharge head 923, the discharge head 923 is in an open state. When the glue application is completed, the valve stem 93 will automatically approach the discharge head 923, so that a negative pressure will be generated in the glue head body 925, so that the glue will flow back from the discharge head 923 into the glue head body 925, and the glue will not drip onto the integrated circuit board. After the entire glue application is completed, in order to avoid glue caking, it is often necessary to clean the glue head assembly 92; here, by rotating the pipe joint 191 and the branch channel 922 into place, the columnar protrusion 195 on the pipe joint 191 will push the columnar plug 194 away from the seal 192, and the branch channel 922 will be in an open state; then the pipe joint 191 is connected to the water source through a water pipe, and the glue head body 925 is controlled to open by the first cylinder 20, so that during the cleaning process, water can flow out of the discharge head 923. Since the one-way valve assembly 18 is provided on the main feed channel 921 , the water flow will not flow into the storage tank 16 .

[0028] By providing a sealing ring 926 and a fixed sleeve 927 on the glue head body 925, a better seal is achieved between the glue head body 925 and the valve stem 93, and the valve stem 93 and the glue head body 925 can move axially relative to each other; the equipment sealing ring 926 prevents glue from overflowing, so that glue can only be sprayed out from the discharge head 923. By providing a first spring 95, a retaining ring 98 and a circumferential limiter 97, the valve stem 93 can automatically reset when the sliding switch 96 on the valve stem 93 is not pushed by the first cylinder 20. In this way, the sealing ball 94 on the valve stem 93 can abut against the discharge head 923 in the default state, facilitating the control of the glue spraying state.

[0029] When gluing the edge of an integrated circuit board, the amount of glue applied is often large, and in this case, a continuous gluing mode is required. The second cylinder 911 controls the extension of the limiting protrusion 912, at which point the limiting protrusion 912 is just stuck in the limiting groove 914 of the columnar limiting body 910; by rotating the first knob 25, the columnar limiting body 910 can be adjusted to move along the limiting channel 24; a first Hall switch 915 is provided at the end of the limiting groove 914, thereby adjusting the distance between the first Hall switch 915 and the limiting protrusion 912. In the continuous gluing mode, only the first Hall switch 915 is energized, and the second Hall switch 29 and the third Hall switch 32 are not energized. When the first cylinder 20 controls the movement of the valve stem 93, the valve stem 93 drives the sliding switch 96 to move. When the sliding switch 96 moves, it drives the first magnet 913 on the limit protrusion 912 to move relative to the first Hall switch 915. When the first magnet 913 and the first Hall switch 915 are in contact with each other, the first Hall switch 915 sends an electrical signal to the control component 14, so that the control component 14 sends a working instruction to keep the first cylinder 20 in the extended state, so that the sliding switch on the first cylinder 20 will be pushed away from the discharge head 923. Then, the glue head assembly 92 can be in a continuous glue-spraying mode, and the glue output can be adjusted. Here, the position of the first Hall switch 915 can be used to conveniently control the extension stroke of the first cylinder 20, thereby controlling the amount of glue output. When the glue-spraying of the single integrated circuit board is completed, the positioning cylinder 3 releases the integrated circuit board. Then, the integrated circuit board is driven away from the glue-spraying device 9 by the conveying component 2. When positioning cylinder 3 is operating, infrared sensor 21 detects movement of the integrated circuit board. The control component sends a stop command to first cylinder 20, causing it to retract, keeping the glue head assembly 92 permanently closed. During the continuous glue application process, visual inspection device 12 scans the components on the integrated circuit board. When the glue application location changes, visual inspection device 12 sends an electrical signal to control component 14, which in turn sends an operating command to first cylinder 20. This allows first cylinder 20 to control the on / off state of glue head assembly 92 at any time.

[0030] When interval gluing is required on a certain area of ​​the integrated circuit board, the second cylinder 911 controls the retraction of the limit protrusion 912, so that the limit protrusion 912 is completely within the groove of the sliding switch 96; at this time, the limit protrusion 912 will not interfere with the cylindrical limit body 910, so that the valve stem 93 and the sliding switch 96 can extend and retract normally. In the interval gluing mode, the first Hall switch 915 is in the off state, and the second Hall switch 29 and the third Hall switch 32 are in the on state. Before the first cylinder 20 is activated, the distance between the second magnet 28 and the second Hall switch 29 is adjusted by turning the second knob 27, so that the maximum extension and retraction stroke of the valve stem 93 can be controlled. The visual inspection device 12 sends an initial working instruction to the first cylinder 20 through the control component 14, so that the first cylinder 20 extends, and the push block of the first cylinder 20 pushes the sliding switch 96 to move, so that the second magnet 28 at the end of the valve stem 93 is close to the second Hall switch 29; then the second Hall switch 29 will send an electrical signal to the control component 14, and the control component 14 controls the first cylinder 20 to retract; in this way, the valve stem 93 will be close to the discharge head 923 and block the discharge head 923; when the first cylinder 20 is retracted into place, the third magnet 31 is close to the third Hall switch 32; the third Hall switch 32 sends an electrical signal to the control component 14, and the control component 14 controls the first cylinder 20 to extend, so that the valve stem 93 is away from the discharge head 923, and the glue head body 925 is in an open state; then the electrical signal is detected by the second Hall switch 29 and the third Hall switch 32, thereby controlling the reciprocating extension and retraction of the first cylinder 20, so that intermittent glueing can be achieved. When the glue coating of a module interval on the integrated circuit board is completed, the visual inspection device 12 sends an electrical signal to the control component 14, and the control component 14 sends a stop working instruction to the first cylinder 20, and the first cylinder 20 is in a retracted state, so that the glue head body 925 will be in a closed state.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An automatic gluing device (9) for circuit boards, comprising a main frame (1), a conveying assembly (2) for conveying products being provided on the main frame (1), and a positioning cylinder (3) being provided on the side of the conveying assembly (2); characterized in that: A front and rear linear transport module (4) is provided on the main frame (1); a left and right linear transport module (5) is provided on the slider of the front and rear linear transport module (4); and an upper and lower linear transport module (6) is provided on the slider of the left and right linear transport module (5); a horizontal adjustment frame (7) is provided on the slider of the upper and lower linear transport module (6); and an equipment platform (8) is provided on the horizontal adjustment frame (7); an ion air knife (10), an air outlet component (11) and a visual detection device (12) are provided on the equipment platform (8); a rotating cylinder (13) is provided on the side of the equipment platform (8), and a gluing device (9) is provided on the rotating cylinder (13); and a control component (14) is further provided on the main frame (1); and the control component (14) is electrically connected to the ion air knife (10), the air outlet component (11), the visual detection device (12) and the gluing device (9).

2. The automatic gluing device (9) for circuit boards according to claim 1, characterized in that: A compressor (15) is also provided on the equipment platform (8), and a storage tank (16) is also provided in the main frame (1); the compressor (15) is electrically connected to the control component (14), and the compressor (15) is connected to the air outlet component (11) through a pipeline; the compressor (15) is connected to the storage tank (16) through a pipeline, and the storage tank (16) is connected to the glue-spraying device (9) through a pipeline.

3. The automatic gluing device (9) for circuit boards according to claim 1, characterized in that: The main frame (1) is provided with a limiting rail (17), and the slider of the front and rear linear transport module (4) is slidably installed on the limiting rail (17); the conveying assembly (2) includes a conveyor belt (201) for placing materials, and the conveyor belts (201) are arranged in pairs; the positioning cylinder (3) is arranged adjacent to the conveyor belt (201); the horizontal adjustment frame (7) is provided with an equipment platform (8) that can move horizontally relative to it, and a guide rod (71) is fixedly installed on the horizontal adjustment frame (7), and a screw rod (72) rotatably connected to the horizontal adjustment frame (7) is provided below the guide rod (71), and a handle (73) is fixedly installed at the end of the screw rod (72); the equipment platform (8) is sleeved and installed on the guide rod (71), and the equipment platform (8) and the screw rod (72) are engaged with each other. When the handle (73) is rotated, the equipment platform (8) moves relative to the horizontal adjustment frame (7).

4. The automatic gluing device (9) for circuit boards according to claim 2, characterized in that: The glue applying device (9) comprises a main housing (91), the main housing (91) is provided with a glue applying head assembly (92) fixedly connected thereto; the glue applying head assembly (92) comprises a main feed channel (921), the main feed channel (921) is provided with a branch channel (922) communicating therewith; the main feed channel (921) is provided with a one-way valve assembly (18), the main feed channel (921) is connected to the storage tank (16) through a pipeline; the open end of the branch channel (922) is provided with an adapter assembly (19); the glue applying device (9) further comprises a valve stem (93), the end of the valve stem (93) is fixedly mounted with a sealing ball (94), the glue applying head assembly (92) comprises a discharge head (923) and a sealing ball (94). A sealing gasket (924) is installed on the discharge head (923); a first spring (95) is provided between the valve stem (93) and the main shell (91), and the sealing ball (94) rests on the sealing gasket (924) in the default state; a sliding switch (96) is provided in the main shell (91) and is slidably connected to it, and the sliding switch (96) is fixedly installed on the valve stem (93), and the outer layer of the main shell (91) is provided with a first cylinder (20) for pushing the sliding switch (96) to move; an infrared sensor (21) is also provided on the main frame (1), and the infrared sensor (21) is also electrically connected to the control component (14), and the infrared sensor (21) is set close to the positioning cylinder (3).

5. The automatic gluing device (9) for circuit boards according to claim 4, characterized in that: The glue head assembly (92) further includes a glue head body (925), a sealing ring (926) and a fixed shaft sleeve (927). The glue head body (925) is provided with a main feed channel (921) and a branch channel (922) that are interconnected. The glue head body (925) is also provided with a discharge head (923) threadedly connected thereto. The sealing gasket (924) is provided between the discharge head (923) and the glue head body (925). A valve stem (93) is inserted into the glue head body (925). The glue head body (925) and the valve stem ( 93); a sealing ring (926) is provided between the sealing ring (926) and the glue head body (925); a fixed shaft sleeve (927) is provided between the sealing ring (926) and the glue head body (925), and the fixed shaft sleeve (927) is tightly connected to the glue head body (925); the discharge head (923) is connected to the main feed channel (921) and the branch channel (922) respectively; a circumferential limit portion (97) is provided in the main shell (91), a retaining spring (98) is installed on the valve stem (93), and a first spring (95) is provided between the retaining spring (98) and the circumferential limit portion (97).

6. The automatic gluing device (9) for circuit boards according to claim 5, characterized in that: A one-way valve assembly (18) is provided on the main feed channel (921), and the one-way valve assembly (18) includes a valve seat (181) and a diaphragm (182); the valve seat (181) is fixedly mounted on the main feed channel (921), and a diaphragm (182) is fixedly mounted on the valve seat (181), and the diaphragm (182) can be elastically deformed relative to the valve seat (181).

7. The automatic gluing device (9) for circuit boards according to claim 5, characterized in that: The open end of the branch channel (922) is provided with an adapter assembly (19); the adapter assembly (19) comprises a pipe joint (191), a sealing member (192), a second spring (193), and a shaft-shaped plug (194); the pipe joint (191) is threadedly connected to the branch channel (922); the open end of the branch channel (922) is tightly fitted with the sealing member (192); the shaft-shaped plug (194) is arranged in the branch channel (922) and close to the sealing member (192); A water outlet (928) is provided in the branch channel (922), and a second spring (193) is provided between the water outlet (928) and the step of the shaft-shaped plug (194); in a default state, the shaft-shaped plug (194) abuts against the sealing member (192); and a columnar protrusion (195) is provided on the pipe joint (191) toward the interior of the shaft-shaped plug (194); when the pipe joint (191) and the branch channel (922) rotate, the columnar protrusion (195) can move relative to the shaft-shaped plug (194).

8. The automatic gluing device (9) for circuit boards according to claim 4, characterized in that: The main housing (91) is provided with an opening groove (99), and the outer wall of the sliding switch (96) and the side wall of the opening groove (99) are arranged to fit each other; the outer layer of the main housing (91) is provided with a cylinder bracket (22) and a guide bracket (23) arranged side by side, and a first cylinder (20) is fixedly installed on the cylinder bracket (22); a columnar limiter (910) capable of axial movement relative to the guide bracket (23) is provided, and a second cylinder (911) is provided in the groove of the sliding switch (96), and a limit protrusion (912) is provided on the piston shaft of the second cylinder (911); the second cylinder (911) and the columnar limiter (910) are arranged perpendicular to each other, and when the second cylinder (911) is in operation, it controls the radial movement of the limit protrusion (912) relative to the columnar limiter (910).

9. The automatic gluing device (9) for circuit boards according to claim 8, characterized in that: A first magnet (913) is provided in the limiting protrusion (912), and a limiting groove (914) is provided in the columnar limiting body (910); the outer contour of the limiting protrusion (912) and the outer contour of the limiting groove (914) are adapted to each other; a first Hall switch (915) is provided at the end of the limiting groove (914) and is arranged toward the first magnet (913), and the first Hall switch (915) is electrically connected to the control component (14); a limiting channel (24) is provided on the guide bracket (23) The columnar limiting body (910) is slidably installed in the limiting channel (24); a first knob (25) is provided on the side of the guide bracket (23) and is rotatably connected thereto, and the first knob (25) is threadedly connected to the columnar limiting body (910); when the first knob (25) is rotated, the columnar limiting body (910) moves along the axial direction of the limiting channel (24), and the limiting channel (24) and the valve stem (93) are arranged parallel to each other; the first cylinder (20) is also electrically connected to the control component (14).

10. The automatic gluing device (9) for circuit boards according to claim 8, characterized in that: The end of the main housing (91) is provided with a cover body (26) fixedly connected thereto, and the cover body (26) is provided with a second knob (27) threadedly connected thereto; the sliding switch (96) is fixedly connected to the valve stem (93), and the end of the valve stem (93) is provided with a second magnet (28), and the end of the second knob (27) is provided with a second Hall switch (29), and the second magnet (28) is arranged toward the second Hall switch (29), and the second Hall switch (29) is also electrically connected to the control component (14); a push block (30) is provided on the piston shaft of the first cylinder (20), and the push block (30) is arranged adjacent to the sliding switch (96); a third magnet (31) is provided on the push block (30), and the head of the first cylinder (20) is provided with a third Hall switch (32) arranged toward the third magnet (31), and the third Hall switch (32) is electrically connected to the control component (14).

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