An adhesive leakage-proof dispensing machine for processing circuit board

Abstract

The utility model relates to the field of circuit board point gum machine, specifically is a kind of point gum machine for preventing glue leakage of circuit board processing, including point gum machine body, the side fixed communication of point gum machine body has trachea, one end fixed communication of trachea has rubber pipe, the bottom of rubber pipe is fixedly provided with point gum needle head, the inner wall slidingly connected of point gum machine body has adjusting lever;The utility model can accurately control the temperature in the process of point gum under the action of temperature adjusting mechanism by setting temperature adjusting mechanism, effectively avoid the glue leakage phenomenon caused by temperature fluctuation, when external temperature is lower, temperature adjusting mechanism can heat the glue in rubber pipe, increase its fluidity, prevent the influence of point gum process, simultaneously, in high-temperature environment, the mechanism can cool the glue in rubber pipe, prevent the glue too thin due to temperature being too high, thereby avoid the condition of excessive glue leakage when dripping.

Description

Technical Field

[0001] This utility model relates to the field of circuit board dispensing machines, specifically a dispensing machine for circuit board processing that prevents glue leakage. Background Technology

[0002] A PCB dispensing machine, also called a PCB glue dispensing machine, PCB automatic dispensing machine, PCB coating machine, or PCB glue applicator, is an automated device specifically designed for precise fluid control of printed circuit boards (PCBs). Its core function is to precisely and evenly apply or drip specific adhesives or other fluid materials onto predetermined locations on the circuit board through programmed control.

[0003] In the process of circuit board manufacturing, dispensing is a crucial step, directly affecting the sealing, insulation, and overall quality of the circuit board. However, traditional dispensing machines often face a problem during operation: glue leakage is prone to occur due to temperature fluctuations during dispensing. This not only wastes glue but may also contaminate the circuit board and affect its electrical performance. Especially in the manufacturing of circuit boards with high precision requirements, glue leakage has become a bottleneck restricting production efficiency and product quality. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional dispensing machines often face a problem during operation: glue leakage is prone to occur due to temperature fluctuations during dispensing. This not only wastes glue but may also contaminate the circuit board and affect its electrical performance. Especially in the processing of circuit boards with high precision requirements, the glue leakage problem has become a bottleneck restricting production efficiency and product quality. This utility model proposes a glue-leakage-proof dispensing machine for circuit board processing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a dispensing machine for circuit board processing that prevents glue leakage, including a dispensing machine body, an air pipe fixedly connected to one side of the dispensing machine body, a glue tube fixedly connected to one end of the air pipe, a dispensing needle fixedly sleeved at the bottom of the glue tube, an adjusting rod slidably connected to the inner wall of the dispensing machine body, a clamping plate fixedly connected to the bottom of the adjusting rod, the inner wall of the clamping plate contacting the surface of the glue tube, and a temperature regulating mechanism provided on the surface of the glue tube; The temperature regulating mechanism includes two heat-conducting blocks. One side and the inner wall of each heat-conducting block are in contact with the surfaces of the hose and the clamping plate, respectively. Heating wires are fixedly installed on the inner walls of opposite sides of the two heat-conducting blocks. Cooling plates are fixedly installed on opposite sides of the two heat-conducting blocks. A cooling fan is fixedly installed on one side of each cooling plate. There are two cooling fans.

[0006] Preferably, a first mounting plate and a second mounting plate are fixedly connected to both sides of the cooling chip and the heat-conducting block, respectively. Bolts are threaded between the inner walls of the first mounting plate and the second mounting plate, and the opposite sides of the first mounting plate and the second mounting plate are in close contact.

[0007] Preferably, a support plate is fixedly connected to both sides of the dispensing machine body, a first reinforcing block is fixedly connected to one side of the support plate, a second reinforcing block is rotatably connected to one side of the first reinforcing block via a rotating shaft, an electric telescopic rod is provided between the inner walls of the first and second reinforcing blocks, and the telescopic end of the electric telescopic rod is fixedly connected to one side of the cooling chip.

[0008] Preferably, rubber pads are fixedly connected to the inner walls of both the first and second reinforcing blocks, and the opposite sides of the two rubber pads are in close contact with the surface of the electric telescopic rod.

[0009] Preferably, a semi-circular reinforcing shell is fixedly connected to one side of both the first and second reinforcing blocks, and the opposite side of the two semi-circular reinforcing shells is in contact with the surface of the electric telescopic rod.

[0010] Preferably, the bottom of both the first and second reinforcing blocks is fixedly connected to a first fixing plate, and a knob is threaded between the inner walls of the two first fixing plates.

[0011] Preferably, the inner wall of the heat-conducting block is provided with a mating groove, which is in contact with the surface of the clamping plate.

[0012] The advantages of this utility model are: This invention, by incorporating a temperature regulation mechanism, can precisely control the temperature during the dispensing process, effectively preventing glue leakage caused by temperature fluctuations. When the ambient temperature is low, the temperature regulation mechanism can heat the glue in the tube to increase its fluidity and prevent the dispensing process from being affected. At the same time, in high-temperature environments, the mechanism can cool the glue in the tube to prevent it from becoming too thin due to excessive temperature, thereby avoiding excessive glue leakage during dripping. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the temperature regulating mechanism and the hose of this utility model; Figure 3 This is an exploded view of the temperature regulating mechanism and the hose of this utility model; Figure 4 This is a three-dimensional schematic diagram of a partial structure of the present invention; Figure 5 This is a bottom-view perspective view of a partial structure of this utility model.

[0015] In the diagram: 1. Dispensing machine body; 2. Temperature adjustment mechanism; 201. Heat-conducting block; 202. Cooling fan; 203. Cooling element; 204. Heating wire; 3. Adjusting rod; 4. Clamping plate; 5. Support plate; 6. Electric telescopic rod; 7. First reinforcing block; 8. Adhesive hose; 9. Air hose; 10. Bolt; 11. Dispensing needle; 12. First mounting plate; 13. Second mounting plate; 14. Semi-circular reinforcing shell; 15. Second reinforcing block; 16. Knob; 17. First fixing plate; 18. Rubber pad; 19. Connecting groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a dispensing machine for circuit board processing that prevents adhesive leakage. (See also...) Figures 1-3 A dispensing machine for circuit board processing with anti-leakage adhesive includes a dispensing machine body 1. An air pipe 9 is fixedly connected to one side of the dispensing machine body 1. An adhesive tube 8 is fixedly connected to one end of the air pipe 9. A dispensing needle 11 is fixedly sleeved at the bottom of the adhesive tube 8. An adjusting rod 3 is slidably connected to the inner wall of the dispensing machine body 1. A clamping plate 4 is fixedly connected to the bottom of the adjusting rod 3. The inner wall of the clamping plate 4 is in contact with the surface of the adhesive tube 8. A temperature regulating mechanism 2 is provided on the surface of the adhesive tube 8. The temperature regulating mechanism 2 includes two heat-conducting blocks 201. One side and the inner wall of each heat-conducting block 201 are in contact with the surfaces of the hose 8 and the clamping plate 4, respectively. Heating wires 204 are fixedly installed on the inner walls of opposite sides of the two heat-conducting blocks 201. Cooling plates 203 are fixedly installed on opposite sides of the two heat-conducting blocks 201. A cooling fan 202 is fixedly installed on one side of each cooling plate 203. There are two cooling fans 202.

[0018] Reference Figure 2 and Figure 3 The first mounting plate 12 and the second mounting plate 13 are fixedly connected to the two sides of the cooling plate 203 and the heat-conducting block 201, respectively. Bolts 10 are threaded between the inner walls of the first mounting plate 12 and the second mounting plate 13. The opposite sides of the first mounting plate 12 and the second mounting plate 13 are in close contact. By setting the first mounting plate 12 and the second mounting plate 13 and the bolts 10, the cooling plate 203 and the heat-conducting block 201 can be firmly connected together, ensuring the stability and reliability of the temperature regulation mechanism 2 structure. In actual use, when it is necessary to adjust the temperature of the glue in the glue tube 8, the heating wire 204 or the cooling plate 203 works, and the heat or cold generated is quickly transferred to the glue tube 8 through the heat-conducting block 201, thereby achieving precise control of the glue temperature and ensuring that the flowability of the glue during the dispensing process is always kept at the best state. This effectively avoids problems such as glue leakage caused by unsuitable glue temperature and improves the working quality and efficiency of the dispensing machine body 1 for circuit board processing. Reference Figure 1 , Figure 4 and Figure 5 Support plates 5 are fixedly connected to both sides of the dispensing machine body 1. A first reinforcing block 7 is fixedly connected to one side of the support plate 5. A second reinforcing block 15 is rotatably connected to one side of the first reinforcing block 7 via a rotating shaft. An electric telescopic rod 6 is provided between the inner walls of the first reinforcing block 7 and the second reinforcing block 15. The telescopic end of the electric telescopic rod 6 is fixedly connected to one side of the cooling plate 203. By setting the electric telescopic rod 6, the first reinforcing block 7 and the second reinforcing block 15 in cooperation, the electric telescopic rod 6 can extend and retract according to actual needs during the operation of the dispensing machine body 1. When it is necessary to adjust the position of the cooling plate 203 to better control the glue temperature, the electric telescopic rod 6 extends and retracts, driving the cooling plate 203 to move. The first reinforcing block 7 and the second reinforcing block 15 are rotatably connected via a rotating shaft, providing flexible support for the extension and retraction of the electric telescopic rod 6. This further ensures the accuracy and stability of the temperature adjustment mechanism 2 in adjusting the glue temperature, thereby effectively preventing glue leakage and improving the working performance of the entire circuit board processing dispensing machine body 1. Reference Figure 4 Rubber pads 18 are fixedly connected to the inner walls of the first reinforcing block 7 and the second reinforcing block 15. The opposite side of the two rubber pads 18 is in close contact with the surface of the electric telescopic rod 6. By setting the rubber pads 18, the rubber pads 18 can play a buffering and protective role when the electric telescopic rod 6 is telescopic. On the one hand, it can reduce the friction between the electric telescopic rod 6 and the inner walls of the first reinforcing block 7 and the second reinforcing block 15, reduce wear, and extend the service life of the electric telescopic rod 6. On the other hand, the elasticity of the rubber pads 18 can better adapt to the telescopic movement of the electric telescopic rod 6, ensuring the stability of the electric telescopic rod 6 during the telescopic process. Reference Figure 4 and Figure 5 A semi-circular reinforcing shell 14 is fixedly connected to one side of both the first reinforcing block 7 and the second reinforcing block 15. The opposite sides of the two semi-circular reinforcing shells 14 are in contact with the surface of the electric telescopic rod 6. By setting the semi-circular reinforcing shells 14, not only is additional support provided for the electric telescopic rod 6, further enhancing the stability of the electric telescopic rod 6 during the telescopic process, but the arc design of the semi-circular reinforcing shells 14 can better fit the surface of the electric telescopic rod 6, dispersing the stress generated when the electric telescopic rod 6 telescopics, and avoiding stress concentration that could damage the electric telescopic rod 6. At the same time, the semi-circular reinforcing shells 14 are fixedly connected to the first reinforcing block 7 and the second reinforcing block 15, forming a complete reinforcement system, which effectively improves the structural strength of the entire temperature regulation mechanism 2. Reference Figure 4 and Figure 5 The bottom of the first reinforcing block 7 and the second reinforcing block 15 are both fixedly connected to the first fixing plate 17. The inner walls of the two first fixing plates 17 are threadedly connected to the knob 16. By setting the threaded connection structure between the knob 16 and the first fixing plate 17, the installation and disassembly of the first reinforcing block 7 and the second reinforcing block 15 become extremely convenient, which facilitates the maintenance or replacement of the electric telescopic rod 6 and related components in the later stage. At the same time, the fastening effect of the knob 16 can effectively prevent the first reinforcing block 7 and the second reinforcing block 15 from loosening during use, ensuring that they are always firmly fixed in the required position, thereby continuously providing reliable support and reinforcement for the electric telescopic rod 6, and further ensuring the overall stability and reliability of the temperature regulation mechanism 2. Reference Figure 3 The inner wall of the heat-conducting block 201 is provided with a docking groove 19, which contacts the surface of the clamping plate 4. By setting the docking groove 19 to contact the surface of the clamping plate 4, the heat-conducting block 201 can dock more accurately with the clamping plate 4, ensuring the efficiency and stability of heat transfer. At the same time, this design can also effectively prevent the heat-conducting block 201 from shifting or misaligning during heat transfer, thereby ensuring the accuracy and consistency of temperature control of the entire dispensing machine body 1 when processing circuit boards, further improving the quality and efficiency of circuit board processing.

[0019] Working Principle: When the dispensing machine body 1 for circuit board processing is working, the adjusting rod 3 will drive the clamping plate 4, glue tube 8, air tube 9, and dispensing needle 11 to move accordingly, thereby realizing the dispensing operation. In this process, the temperature adjustment mechanism 2 plays an important role. When heating or cooling the glue in the glue tube 8, the external electric telescopic rod 6 drives the heat-conducting block 201 to contact the mating groove 19 structure on the surface of the clamping plate 4, which can accurately transfer heat to the required parts, ensuring that the temperature of the glue is within a suitable range during the dispensing process, and ensuring that the viscosity and fluidity of the glue meet the processing requirements. Under the fastening action of the knob 16, the first reinforcing block 7 and the second reinforcing block 15 are always firmly fixed around the electric telescopic rod 6, providing reliable support and reinforcement, making the extension and retraction of the electric telescopic rod 6 more stable and accurate. This ensures that the entire dispensing machine body 1 can complete the dispensing task efficiently and accurately when processing circuit boards, effectively preventing glue leakage and improving the quality of circuit board processing.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A dispensing machine for circuit board processing with anti-leakage adhesive, comprising a dispensing machine body (1), wherein an air pipe (9) is fixedly connected to one side of the dispensing machine body (1), and an adhesive tube (8) is fixedly connected to one end of the air pipe (9), wherein a dispensing needle (11) is fixedly sleeved at the bottom of the adhesive tube (8), and an adjusting rod (3) is slidably connected to the inner wall of the dispensing machine body (1), wherein a clamping plate (4) is fixedly connected to the bottom of the adjusting rod (3), and the inner wall of the clamping plate (4) is in contact with the surface of the adhesive tube (8), characterized in that: The surface of the hose (8) is provided with a temperature regulating mechanism (2); The temperature regulating mechanism (2) includes a heat-conducting block (201), and there are two heat-conducting blocks (201). One side and the inner wall of the heat-conducting block (201) are in contact with the surface of the rubber tube (8) and the clamping plate (4), respectively. Heating wires (204) are fixedly installed on the inner walls of opposite sides of the two heat-conducting blocks (201). Cooling chips (203) are fixedly installed on opposite sides of the two heat-conducting blocks (201). A cooling fan (202) is fixedly installed on one side of the cooling chip (203). There are two cooling fans (202).

2. The dispensing machine for circuit board processing with anti-leakage adhesive as described in claim 1, characterized in that: The cooling plate (203) and the heat-conducting block (201) are respectively fixedly connected to the first mounting plate (12) and the second mounting plate (13). The inner walls of the first mounting plate (12) and the second mounting plate (13) are threaded together with bolts (10). The opposite sides of the first mounting plate (12) and the second mounting plate (13) are in close contact.

3. The dispensing machine for circuit board processing with anti-leakage adhesive as described in claim 1, characterized in that: The dispensing machine body (1) is fixedly connected to both sides of a support plate (5). A first reinforcing block (7) is fixedly connected to one side of the support plate (5). A second reinforcing block (15) is rotatably connected to one side of the first reinforcing block (7) via a rotating shaft. An electric telescopic rod (6) is provided between the inner walls of the first reinforcing block (7) and the second reinforcing block (15). The telescopic end of the electric telescopic rod (6) is fixedly connected to one side of the cooling plate (203).

4. The dispensing machine for circuit board processing with anti-leakage adhesive as described in claim 3, characterized in that: The inner walls of the first reinforcing block (7) and the second reinforcing block (15) are both fixedly connected with rubber pads (18), and the opposite side of the two rubber pads (18) is in close contact with the surface of the electric telescopic rod (6).

5. A dispensing machine for circuit board processing with anti-leakage adhesive as described in claim 4, characterized in that: The first reinforcing block (7) and the second reinforcing block (15) are each fixedly connected to a semi-circular reinforcing shell (14) on one side, and the opposite side of the two semi-circular reinforcing shells (14) is in contact with the surface of the electric telescopic rod (6).

6. The dispensing machine for circuit board processing with anti-leakage adhesive as described in claim 5, characterized in that: The bottom of the first reinforcing block (7) and the second reinforcing block (15) are both fixedly connected to a first fixing plate (17), and a knob (16) is threaded between the inner walls of the two first fixing plates (17).

7. The dispensing machine for circuit board processing with anti-leakage adhesive as described in claim 1, characterized in that: The inner wall of the heat-conducting block (201) is provided with a docking groove (19), which is in contact with the surface of the clamping plate (4).

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