Thermally conductive paste extrusion device

Abstract

The utility model relates to heat conducting glue packing technical field discloses heat conducting glue extruding device, including material pipe, the fixed connection of material pipe lower extreme extruding head, the fixed connection of material pipe outside holds the suit, the material pipe still movably connects with the pipe of the pipe of holding the suit inside position, the screw thread pipe is connected between material pipe and the pipe of holding the suit, the fixed connection of screw thread pipe inner top push rod, the fixed connection of push rod lower extreme sealing plug, sealing plug passes through push rod and inserts connection in material pipe, the lower extreme of holding the suit is connected with material pipe, the upper extreme of holding the suit is not connected with material pipe, namely can provide the adjustment for the installation movement rotation of the pipe of holding the suit. The axial rotation of screw thread pipe is limited with the cooperation of slide and second limit block and sliding slot, and through the screw thread drive of the pipe of holding the suit cooperation screw thread pipe, realize sealing plug even -speed down -shift, realize the controllable of the glue output, thereby avoid too much to cause the heat conducting layer to be too thick, overflow pollution or short circuit, also prevent too little unable to fill the gap.

Description

Technical Field

[0001] This utility model relates to the field of thermally conductive adhesive packaging technology, and in particular to a thermally conductive adhesive extrusion device. Background Technology

[0002] Thermally conductive adhesive is a polymer composite material that combines thermal conductivity and adhesion. It can fill the tiny gaps between heat-generating devices and heat-dissipating components, reduce contact thermal resistance, and achieve efficient heat conduction. Thermally conductive adhesives are made from organic silicone, epoxy resin, and other base materials, with added thermally conductive fillers such as alumina and boron nitride. They can be categorized by form, including paste, gel, and sheet forms, and are widely used in the electronics and electrical appliance fields, such as CPU and heatsink fixing, LED lighting heat dissipation encapsulation, and power module thermal bonding. Currently, when using thermally conductive adhesives, individuals typically use a press-type tube to extrude the adhesive. However, the tube lacks a metering mechanism, relying entirely on feel for control. The pressure and speed of pressing affect the amount of adhesive dispensed. The sealing gasket at one end of the push rod creates friction with the tube; excessive force can easily extrude too much adhesive, resulting in an overly thick thermally conductive layer, which increases thermal resistance, reduces heat dissipation, and may even overflow and contaminate motherboard components. Conductive thermally conductive adhesives can even cause short circuits. Conversely, insufficient force may prevent the adhesive from being extruded. Utility Model Content

[0003] The purpose of this invention is to provide a thermally conductive adhesive extrusion device, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A thermally conductive adhesive extrusion device includes a feed tube, an extrusion head fixedly connected to the lower end of the feed tube, a gripping sleeve fixedly connected to the outer side of the feed tube, a push tube movably connected to the feed tube located inside the gripping sleeve, an external threaded tube threadedly connected between the feed tube and the push tube, a push rod fixedly connected to the top of the external threaded tube, a sealing plug fixedly connected to the lower end of the push rod, and the sealing plug being inserted into the feed tube through the push rod.

[0005] As a further preferred embodiment of this utility model, the lower end of the grip sleeve is connected to the material tube, while the upper end of the grip sleeve is not connected to the material tube. This provides adjustment for the installation, movement, and rotation of the tube, allowing personnel to operate the material tube while holding the grip sleeve, without affecting the rotation operation of the tube.

[0006] As a further preferred embodiment of this utility model, a rotating groove is provided on the outer side of the material tube near the extrusion head to provide conditions for the rotation adjustment of the tube. Several sliding grooves are provided on the material tube above the rotating groove. A first limiting block is fixedly connected to the upper inner side of the sliding groove, which enables the external thread tube to move vertically along the outer side of the material tube under the adjustment of the tube.

[0007] As a further preferred embodiment of this utility model, a fixed ring is fixedly connected to the inner side of the dial tube, and the fixed ring is rotatably connected in the rotating groove. Several dial blocks are fixedly connected to the outer side of the dial tube, so that when the hand holds the grip sleeve, the fixed ring can be rotated by turning the dial blocks.

[0008] As a further preferred embodiment of this utility model, a plurality of slide bars are fixedly connected to the inner side of the externally threaded tube, and a second limiting block is fixedly connected to the lower end of the slide bar. The second limiting block is slidably connected in the slide groove, and the slide bar is slidably connected to one side of the first limiting block. After the second limiting block is squeezed past the first limiting block and slidably connected in the slide groove, it can realize the limiting connection between the externally threaded tube and the material tube, preventing the externally threaded tube from separating from the material tube. At the same time, it can also restrict the axial movement of the externally threaded tube, thereby realizing that when the pusher rotates on the outside of the externally threaded tube, it controls the externally threaded tube to drive the push rod and the sealing plug to move down, so that the sealing plug can extrude the thermally conductive adhesive in the material tube through the extruder head at a uniform speed.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the slide bar, the second limiting block and the slide groove cooperate to restrict the axial rotation of the external threaded tube, and the sealing plug moves down at a constant speed through the thread transmission of the external threaded tube, so that the amount of glue dispensed can be controlled, thereby avoiding excessive heat conduction layer, overflow pollution or short circuit, and also preventing insufficient filling of gaps. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional view of the main structure of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the material tube and grip sleeve structure of this utility model; Figure 5 This is a schematic diagram of the tube-pulling structure of this utility model; Figure 6 This is a schematic diagram of the external threaded pipe structure of this utility model; Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0011] In the diagram: 1. Material tube; 2. Extrusion head; 3. Grip sleeve; 4. Push tube; 5. External threaded tube; 6. Push rod; 7. Sealing plug; 8. Rotary groove; 9. Fixing ring; 10. Push block; 11. Slide groove; 12. First limit block; 13. Slide bar; 14. Second limit block. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] like Figures 1-7 As shown, the thermally conductive adhesive extrusion device provided by this utility model includes a feed tube 1, an extrusion head 2 fixedly connected to the lower end of the feed tube 1, a gripping sleeve 3 fixedly connected to the outside of the feed tube 1, a push tube 4 movably connected to the feed tube 1 located inside the gripping sleeve 3, an external threaded tube 5 threadedly connected between the feed tube 1 and the push tube 4, a push rod 6 fixedly connected to the top of the external threaded tube 5, a sealing plug 7 fixedly connected to the lower end of the push rod 6, and the sealing plug 7 is inserted into the feed tube 1 through the push rod 6.

[0014] like Figures 2-7 As shown, the lower end of the grip sleeve 3 is connected to the material tube 1, while the upper end of the grip sleeve 3 is not connected to the material tube 1. This allows for adjustment of the installation, movement, and rotation of the push tube 4, enabling personnel to operate the material tube 1 while holding the grip sleeve 3, without affecting the rotation operation of the push tube 4. A rotating groove 8 is provided on the outer side of the material tube 1 near the extruder head 2, providing conditions for the rotation adjustment of the push tube 4. Several sliding grooves 11 are provided on the material tube 1 above the rotating groove 8. A first limiting block 12 is fixedly connected to the upper inner side of the sliding groove 11, enabling the external thread tube 5 to move vertically along the outer side of the material tube 1 under the adjustment of the push tube 4. A fixing ring 9 is fixedly connected to the inner side of the push tube 4, and the fixing ring 9 is rotatably connected in the rotating groove 8. Several push blocks 10 are fixedly connected to the outer side of the push tube 4, facilitating hand gripping of the grip sleeve. At time 3, the fixed ring 9 is rotated by turning the dial block 10. Several slide bars 13 are fixedly connected to the inner side of the external threaded tube 5. The lower end of the slide bar 13 is fixedly connected to the second limiting block 14. The second limiting block 14 is slidably connected in the slide groove 11. The slide bar 13 is slidably connected to one side of the first limiting block 12. After the second limiting block 14 is squeezed through the first limiting block 12 and slidably connected in the slide groove 11, it can realize the limiting connection between the external threaded tube 5 and the material tube 1 to prevent the external threaded tube 5 from separating from the material tube 1. At the same time, it can also restrict the axial movement of the external threaded tube 5. Thus, when the dial 4 rotates outside the external threaded tube 5, it controls the external threaded tube 5 to drive the push rod 6 and the sealing plug 7 to move down, so that the sealing plug 7 can extrude the thermal conductive adhesive in the material tube 1 through the extruder 2 at a uniform speed.

[0015] It should be noted that this utility model is a thermally conductive adhesive extrusion device. During operation, the user holds the grip sleeve 3, with the thumb or forefinger against the lever 10 on the outside of the lever tube 4. By moving the lever 10, the lever tube 4 is rotated. The fixing ring 9 on the inner side of the lever tube 4 rotates stably within the rotating groove 8 of the material tube 1. Since the lever tube 4 is threadedly connected to the external threaded tube 5, and the slide bar 13 on the inner side of the external threaded tube 5 is slidably connected within the sliding groove 11 of the material tube 1, the first limiting block 12 and the second limiting block 14 cooperate to restrict the axial rotation of the external threaded tube 5, allowing it to only rotate along the direction of rotation. The feed tube 1 moves radially. When the pusher tube 4 rotates, the threaded drive generates a downward driving force, which drives the external threaded tube 5 to move vertically downward along the feed tube 1. When the external threaded tube 5 moves downward, the push rod 6 fixed at its top pushes the sealing plug 7 downward in sync. The sealing plug 7 slides at a uniform speed along the inner wall of the feed tube 1, generating uniform pressure on the internal thermally conductive adhesive. Under the action of pressure, the thermally conductive adhesive is smoothly extruded from the extrusion head 2 at the lower end of the feed tube 1. The adhesive dispensing speed is directly related to the rotation speed of the pusher tube 4. Users can precisely adjust the amount of adhesive dispensing by controlling the amplitude and frequency of the pusher block 10.

[0016] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A thermally conductive adhesive extrusion device, characterized in that: Includes a feed tube (1), the lower end of which is fixedly connected to an extrusion head (2), the outer side of which is fixedly connected to a gripping sleeve (3), the feed tube (1) located inside the gripping sleeve (3) is also movably connected to a push tube (4), the feed tube (1) and the push tube (4) are threaded together with an external threaded tube (5), the top of the external threaded tube (5) is fixedly connected to a push rod (6), the lower end of which is fixedly connected to a sealing plug (7), the sealing plug (7) is inserted into the feed tube (1) through the push rod (6).

2. The thermally conductive adhesive extrusion apparatus according to claim 1, characterized in that: The lower end of the grip sleeve (3) is connected to the material tube (1), while the upper end of the grip sleeve (3) is not connected to the material tube (1).

3. The thermally conductive adhesive extrusion apparatus according to claim 1, characterized in that: A rotating groove (8) is provided on the outer side of the feed tube (1) near the extrusion head (2). Several sliding grooves (11) are provided on the feed tube (1) above the rotating groove (8). A first limiting block (12) is fixedly connected to the upper inner side of the sliding groove (11).

4. The thermally conductive adhesive extrusion apparatus according to claim 3, characterized in that: A fixing ring (9) is fixedly connected to the inner side of the dial tube (4), and the fixing ring (9) is rotatably connected in the rotating groove (8). Several dial blocks (10) are fixedly connected to the outer side of the dial tube (4).

5. The thermally conductive adhesive extrusion apparatus according to claim 4, characterized in that: The inner side of the external threaded tube (5) is fixedly connected with several slide bars (13), and the lower end of the slide bar (13) is fixedly connected with a second limiting block (14). The second limiting block (14) is slidably connected in the slide groove (11), and the slide bar (13) is slidably connected to one side of the first limiting block (12).

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