Glue pouring device for heat-conducting gel production

By introducing a transition box for vacuum degassing and a three-way valve for switching the dispensing head in the thermal conductive gel dispensing device, the problems of air bubble influence and dispensing head failure during the thermal conductive gel dispensing process are solved, achieving efficient and accurate dispensing operation.

CN223902210UActive Publication Date: 2026-02-13JIANGSU JINGHE ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202520380032.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-13
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Air bubbles are easily mixed into the thermal conductive gel during the dispensing process, resulting in poor dispensing accuracy and difficulty in troubleshooting dispensing head failures, thus affecting dispensing efficiency.

Method used

A dispensing device comprising a transition box, a vacuum pump, a movable plate, and a three-way valve was designed. The device removes gel bubbles by creating a vacuum in the transition box and switches the dispensing head via the three-way valve to facilitate replacement and movement of the dispensing head. The device also incorporates a motor-driven stirring rod and an electric heater to improve gel flowability.

Benefits of technology

It improves the accuracy and efficiency of glue dispensing, reduces maintenance time when the glue dispensing head fails, and enhances the flexibility and efficiency of the glue dispensing head.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a glue filling device for heat conduction gel production, which comprises a bottom plate, a control valve, a transition box, a fixed frame, a movable plate, a three-way valve and a glue filling head, the control valve and the transition box are arranged on the bottom plate, a glue inlet head is arranged at the bottom of the left side of the transition box, and a glue outlet head is arranged at the top of the right side of the transition box. An outlet of the control valve is communicated with the glue inlet head, an exhaust port is formed in the top of the transition box, a valve is arranged on the exhaust port, and the other end of the valve is communicated with an air pump; a fixing frame is arranged on the right side of the transition box, a movable plate is slidably connected to the fixing frame, the sliding direction of the movable plate is in the left-right direction, a three-way valve is arranged at the top of the movable plate, a pair of glue pouring heads is detachably connected to the bottom of the movable plate, and a connector is arranged at an upper port of the three-way valve and communicates with a glue outlet head through a telescopic pipe; and the other two ports of the three-way valve are respectively communicated with the glue pouring head through connecting pipes. The glue filling device has the advantages of good glue filling accuracy, fast troubleshooting of the glue filling head and flexible movement.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gel, specifically relates to a glue filling device for heat-conducting gel production. BACKGROUND

[0002] The heat-conducting gel is a new type of interface heat-conducting material derived from heat-conducting gaskets and heat-conducting silicone grease, and has the advantages of no stress, good plasticity, no oil separation, good storage, and automatic dispensing.

[0003] The heat-conducting gel has high viscosity and is easy to mix with air to generate bubbles, so the accuracy of glue filling operation using the heat-conducting gel containing many bubbles is poor, which affects the quality of the final product. In addition, when the glue filling head fails and cannot smoothly dispense glue, more time is consumed to troubleshoot the glue filling head, which reduces the glue filling efficiency. SUMMARY

[0004] The utility model aims at providing a glue filling device for heat-conducting gel production, which has the advantages of good glue filling accuracy, fast troubleshooting of the glue filling head, and flexible movement of the glue filling head.

[0005] The technical scheme of the utility model is as follows:

[0006] A glue filling device for heat-conducting gel production includes a bottom plate, a control valve, a transition box, a fixed frame, a movable plate, a three-way valve, and a glue filling head. The control valve and the transition box are arranged on the bottom plate. The left side of the bottom of the transition box is provided with a glue inlet head, and the right side of the top of the transition box is provided with a glue outlet head. The inlet of the control valve is connected with a glue conveying pipe leading to a glue filling machine. The outlet of the control valve is connected with the glue inlet head. The top of the transition box is provided with an exhaust port. The exhaust port is provided with a valve. The other end of the valve is connected with an air suction pump. The right side of the transition box is provided with a fixed frame. The fixed frame is slidably connected with a movable plate. The sliding direction of the movable plate is along the left-right direction. The top of the movable plate is provided with a three-way valve. The bottom of the movable plate is detachably connected with a pair of glue filling heads. The upper port of the three-way valve is provided with a connecting head. The connecting head is connected with the glue outlet head through an extension pipe. The other two ports of the three-way valve are respectively connected with the glue filling heads through connecting pipes.

[0007] Preferably, a plurality of rotating rods along the vertical direction are uniformly arranged in the transition box. The upper and lower ends of the rotating rods are respectively rotatably connected with the transition box. The top of the transition box is provided with a motor corresponding to each rotating rod. The drive rod of the motor is coaxially connected with the upper end of the rotating rod. The side wall of the rotating rod is uniformly provided with a stirring rod from top to bottom.

[0008] Preferably, an electric heater is arranged on the side wall of the inside of the transition box, and a protective cover covers the electric heater.

[0009] Preferably, the movable plate is provided with two upper and lower communicating installation openings, the upper end of the installation opening is communicated with the connecting pipe, the inner wall of the lower end of the installation opening is provided with internal threads, the outer wall of the upper end of the glue pouring head is provided with external threads corresponding to the internal threads of the installation opening, and the thread connection between the installation opening and the glue pouring head is realized through the external threads and the internal threads.

[0010] Preferably, the upper end of the glue pouring head is provided with a sealing ring along the outer edge, the sealing ring is below the external thread part of the upper end of the glue pouring head, and the sealing ring abuts on the installation opening.

[0011] Preferably, the inner part of the upper end of the glue pouring head is provided with a fixing ring along the circumference, the fixing ring is provided with a filter cover plate, the filter hole part of the filter cover plate overlaps the inner ring opening part of the fixing ring, the bottom of the filter cover plate is uniformly provided with buckles along the outer edge, the fixing ring is provided with buckle grooves corresponding to the buckles, and the detachable connection between the filter cover plate and the fixing ring is realized by buckling the buckles into the buckle grooves.

[0012] Preferably, the inner side of the front and rear sides of the fixing frame is respectively provided with a slide rail along the left-right direction, the two slide rails are on the same horizontal plane, and the front and rear ends of the movable plate are respectively provided with slide grooves in sliding connection with the slide rails.

[0013] The utility model has the beneficial technical effect:

[0014] 1. The gel is temporarily stored in the transition box before entering the glue pouring head, the air pump is used to create a vacuum in the transition box to remove the air bubbles in the gel, and then the gel is sent into the glue pouring head, thereby improving the glue pouring accuracy; first, the three-way valve is operated to close the communication state of the connecting head and the glue pouring head, then the control valve is opened, the gel flows into the transition box but does not overflow into the exhaust port, the control valve is closed, the valve is opened and the air pump is started, a vacuum is created in the transition box, the air bubbles in the gel are removed, then the valve and the air pump are closed, the three-way valve is operated to connect the connecting head and the glue pouring head, the control valve is opened to add the gel into the transition box, the gel in the transition box flows into the glue pouring head along the glue outlet, the telescopic pipe, the connecting head, the three-way valve and the connecting pipe, and finally the gel flows out of the glue pouring head; when the transition box is vacuumized, the gel liquid level in the transition box keeps a distance from the exhaust port, so that the gel is not sucked out of the exhaust port.

[0015] 2. The connecting head can switch the connected glue pouring head through the three-way valve; if the currently used glue pouring head cannot be normally used due to the current situation, the staff can operate the three-way valve to connect the connecting head with another glue pouring head, then the part to be glued is moved to the glue pouring head connected with the connecting head, and the glue pouring can be continued, so that the time is saved and the glue pouring efficiency is improved.

[0016] 3. The position of the glue pouring head is changed through the movable plate which can slide along the left-right direction, so that the staff can move the glue pouring head according to the glue pouring needs. Attached Figure Description

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0018] Appendix Fig. 1 This is the front view of the present invention.

[0019] Appendix Fig. 2 This is a front-view cross-sectional view of the present invention.

[0020] Appendix Fig. 3 This is a top view of the present invention.

[0021] Appendix Fig. 4 This is a cross-sectional view of the dispensing head.

[0022] In the diagram: 1-Base plate, 2-Control valve, 3-Transfer box, 4-Fixed frame, 5-Modible plate, 6-Three-way valve, 7-Dispensing head, 8-Inlet head, 9-Outlet head, 10-Dispensing pipe, 11-Exhaust port, 12-Valve, 13-Air pump, 14-Connector, 15-Telescopic pipe, 16-Connecting pipe, 17-Rotating rod, 18-Stirring rod, 19-Motor, 20-Heater, 21-Protective cover, 22-Mounting port, 23-Sealing ring, 24-Fixing ring, 25-Filter cover, 26-Snap fastener, 27-Slot, 28-Slide rail, 29-Slide groove. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Example:

[0025] like Figs. 1 to 4 As shown, this embodiment provides a dispensing device for producing thermally conductive gel, including a base plate 1, a control valve 2, a transition box 3, a fixed frame 4, a movable plate 5, a three-way valve 6, and a dispensing head 7. The base plate 1 is equipped with the control valve 2 and the transition box 3. The bottom left side of the transition box 3 is equipped with a glue inlet 8, and the top right side is equipped with a glue outlet 9. The inlet of the control valve 2 is connected to a glue delivery pipe 10 leading to the dispensing machine, and the outlet of the control valve 2 is connected to the glue inlet 8. The top of the transition box 3 is equipped with an exhaust port 11. A valve 12 is provided, and the other end of the valve 12 is connected to the air pump 13. A fixed frame 4 is provided on the right side of the transition box 3. A movable plate 5 is slidably connected to the fixed frame 4. The movable plate 5 slides in the left and right direction. A three-way valve 6 is provided at the top of the movable plate 5 and a pair of dispensing heads 7 are detachably connected to the bottom. A connector 14 is provided at the upper port of the three-way valve 6. The connector 14 is connected to the dispensing head 9 through the telescopic tube 15. The other two ports of the three-way valve 6 are each connected to the dispensing head 7 through the connecting tube 16.

[0026] The gel is temporarily stored in the transition box 3 before entering the glue filling head 7, and the air bubbles in the gel are removed by creating a vacuum in the transition box 3 through the air pump 13, and then the gel is sent into the glue filling head 7, which improves the glue filling accuracy; first operate the three-way valve 6 to close the communication state of the connecting head 14 and the glue filling head 7, then open the control valve 2, let the gel flow into the transition box 3 but not overflow into the exhaust port 11, close the control valve 2, open the valve 12 and start the air pump 13, create a vacuum in the transition box 3, remove the air bubbles in the gel, then close the valve 12 and the air pump 13, operate the three-way valve 6 to connect the connecting head 14 and the glue filling head 7, open the control valve 2 to add the gel into the transition box 3, make the gel in the transition box 3 flow into the glue filling head 7 along the glue outlet head 9, the telescopic pipe 15, the connecting head 14, the three-way valve 6 and the connecting pipe 16, and finally the gel flows out from the glue filling head 7, when the transition box 3 is vacuumized, the gel liquid level in the transition box 3 keeps a distance from the exhaust port 11 to avoid the gel being sucked out from the exhaust port 11. The connecting head 14 can switch the glue filling head 7 connected through the operation of the three-way valve 6, if the currently used glue filling head 7 cannot be normally used due to the situation, the staff can operate the three-way valve 6 to make the connecting head 14 connected with another glue filling head 7, then move the part to be filled with glue to the glue filling head 7 connected with the connecting head 14, and continue to fill the glue, which delays the time and improves the glue filling efficiency. The position of the glue filling head 7 is changed by the movable plate 5 which can slide left and right, which is convenient for the staff to move the glue filling head 7 according to the needs of glue filling.

[0027] Generally, as the amount of gel treated by bubble removal decreases gradually as the glue filling operation continues, to avoid too many air bubbles in the gel, the transition box 3 needs to be vacuumized regularly to remove the air bubbles in the gel, and the control valve 2 needs to be closed and the three-way valve 6 needs to be operated to close the communication state of the connecting head 14 and the glue filling head 7 before vacuumization, and the control valve 2 and the three-way valve 6 are restored after vacuumization is completed.

[0028] Further, a plurality of rotating rods 17 in the vertical direction are uniformly arranged in the transition box 3, the upper and lower ends of the rotating rod 17 are respectively rotationally connected with the transition box 3, the top of the transition box 3 is provided with a motor 19 corresponding to the rotating rod 17, the driving rod of the motor 19 is coaxially connected with the upper end of the rotating rod 17, and the side wall of the rotating rod 17 is uniformly provided with stirring rods 18 from top to bottom.

[0029] The rotating rod 17 is driven to rotate by the motor 19, the rotating rod 17 drives the stirring rod 18 to rotate, and the rotating stirring rod 18 stirs the gel, which is beneficial to improve the fluidity of the gel and increase the glue filling efficiency.

[0030] Further, an electric heater 20 is arranged on the side wall inside the transition box 3, and a protective cover 21 covers the electric heater 20.

[0031] The electric heater 20 heats the gel in the transition box 3 through the protective cover 21, increases the temperature of the gel, and is favorable to improve the flowability of the gel and increase the glue pouring efficiency.

[0032] Further, the movable plate 5 is provided with two installation openings 22 communicating with each other, the upper end of the installation opening 22 is communicated with the connecting pipe 16, the inner wall of the lower end of the installation opening 22 is provided with an internal thread, the outer wall of the upper end of the glue pouring head 7 is provided with an external thread corresponding to the internal thread of the installation opening 22, and the screw thread connection between the installation opening 22 and the glue pouring head 7 is realized through the external thread and the internal thread.

[0033] The glue pouring head 7 is screw-connected with the installation opening 22, the glue pouring head 7 is convenient to assemble and disassemble, and is convenient to replace and clean.

[0034] Further, the upper end of the glue pouring head 7 is provided with a sealing ring 23 along the outer edge, the sealing ring 23 is below the external thread part of the upper end of the glue pouring head 7, and the sealing ring 23 abuts on the installation opening 22.

[0035] The gap between the installation opening 22 and the glue pouring head 7 is blocked by the sealing ring 23, the sealing property is improved, and the risk of material leakage is reduced.

[0036] Further, the inner part of the upper end of the glue pouring head 7 is provided with a fixing ring 24 along the circumference, the fixing ring 24 is provided with a filter cover plate 25, the filter hole part of the filter cover plate 25 overlaps the inner ring opening part of the fixing ring 24, the bottom of the filter cover plate 25 is uniformly provided with buckles 26 along the outer edge, the fixing ring 24 is provided with buckle grooves 27 corresponding to the buckles 26, and the detachable connection between the filter cover plate 25 and the fixing ring 24 is realized by buckling the buckles 26 into the buckle grooves 27.

[0037] The impurities possibly mixed in the gel are blocked by the filter cover plate 25, the glue pouring quality is improved, and the filter cover plate 25 is convenient to assemble and disassemble and is convenient to replace and clean.

[0038] Further, the inner sides of the front and rear sides of the fixing frame 4 are respectively provided with sliding rails 28 in the left-right direction, the two sliding rails 28 are on the same horizontal plane, and the front and rear ends of the movable plate 5 are respectively provided with sliding grooves 29 in sliding connection with the sliding rails 28.

[0039] The front and rear ends of the movable plate 5 are respectively in sliding connection with the fixing frame 4 through the cooperation of the sliding grooves 29 and the sliding rails 28, the sliding directions of the front and rear ends of the movable plate 5 are parallel to each other and are on the same horizontal plane, and the movable plate 5 can be stably moved in the left-right direction.

[0040] The working principle and use process of the utility model are as follows:

[0041] The worker pre-injects the temporary box with a proper amount of gel, then vacuums the temporary box to remove the gel bubbles, moves the part to be filled with the gel to the filling head 7 connected to the connector 14, then closes the valve 12 and the vacuum pump 13, opens the control valve 2 and operates the three-way valve 6 to connect the connector 14 to the filling head 7, and starts the gel filling operation. When a certain amount of gel is consumed in the gel filling operation, such as a certain number of parts are processed, the worker vacuums the transition box 3 to remove the bubbles, so as to avoid too many bubbles in the gel and ensure the accuracy of the gel filling. When the filling head 7 connected to the connector 14 fails to affect the gel filling, the worker can operate the three-way valve 6 to switch the filling head 7 connected to the connector 14, so that the gel filling operation can be resumed in a short time, and the gel filling efficiency is improved.

[0042] The above is only a specific application example of the present application, and does not constitute any limitation on the protection scope of the present application. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the present application.

Claims

1. A dispensing apparatus for producing thermally conductive gel, characterized in that: It includes a bottom plate, a control valve, a transition box, a fixed frame, a movable plate, a three-way valve and a glue filling head, the bottom plate is provided with the control valve and the transition box, the left bottom of the transition box is provided with a glue inlet head and the right top is provided with a glue outlet head, the inlet of the control valve is connected with a glue conveying pipe leading to a glue filling machine, the outlet of the control valve is connected with the glue inlet head, the top of the transition box is provided with an exhaust port, the exhaust port is provided with a valve, the other end of the valve is connected with an air pump in communication, the right side of the transition box is provided with a fixed frame, the fixed frame is slidably connected with a movable plate, the sliding direction of the movable plate is along the left-right direction, the top of the movable plate is provided with a three-way valve and the bottom is detachably connected with a pair of glue filling heads, the upper port of the three-way valve is provided with a connecting head, the connecting head is connected with the glue outlet head through an extension pipe, the other two ports of the three-way valve are respectively connected with the glue filling heads through connecting pipes.

2. The glue filling device for producing heat-conducting gel according to claim 1, characterized in that: The transition box is uniformly provided with a plurality of rotating rods in the vertical direction, the upper and lower ends of the rotating rods are respectively rotatably connected with the transition box, the top of the transition box is provided with a motor corresponding to the rotating rods, the driving rod of the motor is coaxially connected with the upper end of the rotating rod, and the side wall of the rotating rod is uniformly provided with a stirring rod from top to bottom.

3. The glue filling device for producing heat-conducting gel according to claim 1, characterized in that: The side wall of the transition box is provided with an electric heater and a protective cover covering the electric heater.

4. The glue filling device for producing heat-conducting gel according to claim 1, characterized in that: The movable plate is provided with two mounting ports communicating with each other, the upper end of the mounting port is connected with the connecting pipe, the inner wall of the lower end of the mounting port is provided with an internal thread, the outer wall of the upper end of the glue filling head is provided with an external thread corresponding to the internal thread of the mounting port, and the thread connection between the mounting port and the glue filling head is realized through the external thread and the internal thread.

5. The glue filling device for producing heat-conducting gel according to claim 4, characterized in that: The upper end of the glue filling head is provided with a sealing ring along the outer edge, the sealing ring is below the external thread part of the upper end of the glue filling head, and the sealing ring abuts on the mounting port.

6. The glue filling device for producing heat-conducting gel according to claim 4, characterized in that: The inner part of the upper end of the glue filling head is provided with a fixing ring along the circumference, the fixing ring is provided with a filter cover plate, the filter hole part of the filter cover plate overlaps with the inner ring port part of the fixing ring, the bottom of the filter cover plate is uniformly provided with a buckle along the outer edge, the fixing ring is provided with a clamping groove corresponding to the buckle, and the detachable connection between the filter cover plate and the fixing ring is realized by clamping the buckle into the clamping groove.

7. The glue filling device for producing heat-conducting gel according to claim 1, characterized in that: The inner side of the front and rear sides of the fixed frame is respectively provided with a sliding rail along the left-right direction, and the two sliding rails are on the same horizontal plane, the front and rear ends of the movable plate are respectively provided with sliding grooves, and the sliding grooves are slidably connected with the sliding rails.