Extrusion device special for cylindrical conductive glue

Abstract

The utility model discloses a special extrusion device for cylindrical conductive glue, and belongs to the field of glue extrusion devices. The extrusion device comprises a screw assembly and a fixing clamp. The screw assembly comprises a threaded rod and a handle, the handle is fixed to one end of the threaded rod, and the handle is used for screwing the threaded rod. A threaded through hole is formed in the center of the fixing clamp, and the end, opposite to the handle, of the threaded rod penetrates into the threaded through hole of the fixing clamp and is in threaded fit with the fixing clamp. The fixing clamp is coaxially installed on a barrel opening of the glue barrel, and a clamping opening is formed in the butt joint face of the fixing clamp and the barrel opening and used for being clamped and fixed to a wing plate of a glue packaging barrel opening. By screwing a handle of the screw assembly, the threaded rod is axially pushed in the glue barrel, so that the glue is extruded out of the glue outlet. The problems that time and labor are wasted and the glue outlet amount is difficult to control when cylindrical conductive glue is manually extruded are solved.

Description

Technical Field

[0001] The present invention belongs to the field of glue extrusion devices, and particularly relates to a special extrusion device for barrel-shaped conductive glue. Background Art

[0002] A certain silicone rubber-based silver / copper conductive glue has good elasticity and can dry quickly on the surface. It is often used for bonding conductive sealing ropes of electronic devices to achieve the effect of electromagnetic shielding. However, due to the poor fluidity of the glue and the small diameter of the glue outlet of the glue packaging barrel, which is only 2.5 mm, it is difficult to extrude the glue during glue application.

[0003] Existing glue guns are mostly used for engineering sealants, and the specification dimensions at the mating part of the glue gun and the glue packaging barrel cannot adapt to the packaging barrel of the silicone rubber-based silver / copper conductive glue. Currently, the use of this silicone rubber-based silver / copper conductive glue is manual glue extrusion. During operation, tools such as wooden sticks and screwdrivers need to be inserted into the glue packaging barrel (hereinafter referred to as the glue barrel) from the barrel mouth as a push rod, and the glue is extruded from the glue outlet at the opposite end of the barrel mouth by pushing the push rod by hand. This method is laborious and the glue extrusion speed is slow. At the same time, the amount of glue extruded is not easy to control, and the inner wall of the glue barrel may be damaged due to improper force, resulting in glue leakage.

[0004] Therefore, it is necessary to design a special extrusion device for the silicone rubber-based silver / copper conductive glue. Summary of the Invention

[0005] Technical problems to be solved: In order to avoid the deficiencies of the prior art, the present invention provides a special extrusion device for barrel-shaped conductive glue, which solves the problems of time-consuming and laborious manual glue extrusion and difficult control of the amount of glue extruded for barrel-shaped conductive glue.

[0006] The technical solution of the present invention is: A special extrusion device for barrel-shaped conductive glue, including a screw rod assembly and a fixed clamp;

[0007] The screw rod assembly includes a threaded rod and a handle; one end of the threaded rod is fixed with a handle for screwing the threaded rod;

[0008] The center of the fixed clamp is provided with a threaded through hole. The end of the threaded rod facing away from the handle is inserted into the threaded through hole of the fixed clamp and is in threaded cooperation with the fixed clamp; the fixed clamp is coaxially installed at the barrel mouth of the glue barrel, and a bayonet is provided on the docking surface of the fixed clamp and the barrel mouth for snap-fixing with the wing plate of the glue packaging barrel mouth;

[0009] By screwing the handle of the screw rod assembly, the threaded rod axially advances in the glue barrel, thereby extruding the glue from the glue outlet.

[0010] A further technical solution of the present invention is: an annular boss is provided at the center position of the mating surface between the fixing clamp and the mouth of the glue packaging tube, and the annular boss is coaxial with the threaded through hole of the fixing clamp; the outer diameter of the annular boss matches with the inner diameter surface of the glue tube, and the inner diameter of the annular boss is provided with an internal thread for matching with the thread of the threaded rod; the annular boss is inserted into the glue tube to support and guide the threaded rod.

[0011] A further technical solution of the present invention is: the fixing clamp is evenly distributed around the circumference with two radially protruding wings, and the wings are matched and docked with the two wing plates at the mouth of the packaging tube; a bayonet is provided on one side of each wing, and the bayonet is an arc-shaped bayonet, and the bayonet surface of the arc-shaped bayonet is parallel to the docking surface between the fixing clamp and the rubber tube, and is bayoneted with the side of the wing plate facing away from the fixing clamp.

[0012] A further technical solution of the present invention is that the distance from the clamping surface of the arc-shaped bayonet to the fixing clip matches the thickness of the wing plate.

[0013] A further technical solution of the present invention is that the outer diameters of the wing plate, the wing portion and the bayonet are all the same.

[0014] A further technical solution of the present invention is: the handle is an inverted eight-shaped butterfly handle, which is fixedly connected to one end of the threaded rod by welding or gluing.

[0015] Beneficial Effects

[0016] The beneficial effects of the present invention are as follows: the special extrusion device for tube-packed conductive glue described in the present invention is suitable for tube-packed silicone rubber-based silver / copper conductive glue. The fixing clip is clamped with the wing plate of the glue packaging tube mouth, and a threaded rod with a butterfly handle at the tail end is screwed into the threaded hole in the center of the fixing clip, so that the front end of the threaded rod is abutted against the piston of the glue packaging tube. By screwing the butterfly handle at the tail end of the threaded rod, the threaded rod is axially advanced, pushing the piston to move toward the glue outlet of the glue tube, thereby squeezing the glue, and easily squeezing the glue out of the glue outlet.

[0017] The extrusion device of the present invention makes the glue extrusion process efficient and labor-saving, and the glue output is controllable. By using a threaded rod with a butterfly handle, which is fixed to the through-hole fixing clamp of the glue packaging tube with a clamp, the thrust required for glue extrusion is converted into a smaller bolt tightening force, and the screwing depth of the screw rod is controllable, which ensures the controllable glue output, and the glue extrusion process can be completed within a few seconds.

[0018] The glue extrusion process of the present invention is safe and does not damage the glue packaging tube. Since the fixed clamp of the extrusion device is fixed to the wing plates on both sides of the tube mouth of the glue tube, when the glue is extruded, the force point is at the wing plate, which will not damage the main body of the glue tube, and the wing plate is fitted with the fixed clamp surface, which will not cause damage to the wing plate, thereby avoiding the phenomenon of damage to the glue tube and glue leakage caused by using tools such as wooden sticks and screwdrivers to assist in glue extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the extrusion device of the present invention;

[0020] Figure 2 This is a schematic diagram of the application scenario of the extrusion device of the present invention;

[0021] Figure 3 This is an exploded view of the extrusion device of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the screw assembly in the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the fixing clip in the present invention.

[0024] Explanation of reference numerals: 1. Screw assembly, 11. Threaded rod, 12. Handle, 2. Fixing clip, 21. Threaded through hole, 22. Annular boss, 23. Bayonet, 24. Wing part, 3. Glue cylinder, 31. Wing plate. Detailed implementation manners

[0025] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0027] Refer to Figure 1-2 , the special extrusion device for barrel-shaped conductive glue of the present invention includes a screw assembly 1 and a fixing clip 2. The screw assembly 1 is in threaded cooperation with the fixing clip 2, and the fixing clip 2 is fixed at the barrel mouth of the glue cylinder 3, and the glue is extruded by screwing the screw assembly 1.

[0028] Specifically, refer to Figure 4 , the screw assembly 1 includes a threaded rod 11 and a handle 12. A handle 12 is fixed at one end of the threaded rod 11 for screwing the threaded rod 11. For the convenience of operation, the handle in this embodiment is an inverted eight-shaped butterfly handle, which is fixedly connected to one end of the threaded rod 11 by welding or gluing.

[0029] Referring to FIGS. 1-3 and 5, the shape of the fixing clip 2 matches the mouth of the rubber cylinder 3. A threaded through hole 21 is provided at the center of the fixing clip 2. One end of the threaded rod 11 facing away from the handle 12 is inserted into the threaded through hole 21 to achieve a threaded fit with the fixing clip 2. At the center position of the end of the fixing clip 2 facing away from the handle 12, an annular boss 22 is provided. The annular boss 22 is coaxial with the threaded through hole 21 of the fixing clip 2. The outer diameter of the annular boss 22 is in surface fit with the inner diameter of the rubber cylinder 3, and its inner diameter is provided with internal threads for threaded fit with the threaded rod 11. The internal threads of the annular boss 22 are the same as the threads of the threaded through hole 21. The annular boss 22 is used to support and guide the threaded rod 11.

[0030] Referring to Figure 5 , in order to ensure that the shape of the fixing clip 2 matches the mouth of the rubber cylinder 3 and facilitate the coaxial clamping of the two, two radially protruding wing parts 24 are evenly distributed in the circumferential direction of the fixing clip 2. The two wing parts 24 have the same contour as the two wing plates 31 at the mouth of the rubber cylinder 3 and correspond to each other one by one. On one side of the docking surface of each wing part 24 and the wing plate 31, a bayonet 23 is provided for clamping with the corresponding wing plate 31. Specifically, the bayonet 23 is a circular arc-shaped bayonet, and its helix direction is clockwise. The front end of the bayonet 23 extending clockwise is the clamping entrance end, and the rear end is the clamping limiting end. The bayonet 23 is integrally formed with the wing part 24 at the limiting end for clamping and limiting. The radian radius of the arc-shaped bayonet is the same as the outer diameter of the wing part 24. The clamping surface of the arc-shaped bayonet is parallel to the docking surface of the fixing clip 2 and the mouth. The arc-shaped bayonet is clamped with the side of the wing plate 31 facing away from the fixing clip 2 to achieve fixation. During clamping, one end of the wing plate 31 is screwed into the bayonet 23 from the clamping entrance end of the bayonet 23 until this end is screwed to the clamping limiting end. At this time, the clamping surface of the bayonet 23 contacts the side of the wing plate 31 facing away from the fixing clip 2 to complete the clamping. In order to ensure the clamping stability, the distance from the clamping surface of the arc-shaped bayonet to the fixing clip 2 matches the thickness of the wing plate 31.

[0031] Referring to Figure 2When in use, first connect the fixing clip 2 to the mouth of the rubber tube 3. Hold the rubber tube 3 with your left hand, insert the annular boss 22 of the fixing clip 2 into the rubber tube 3 with your right hand, rotate the fixing clip 2, and displace and dock the two wings 24 of the fixing clip 2 with the two wing plates 31 at the mouth of the rubber tube 3 to make way for the two bayonet holes 23, so that the end surface of the side where the annular boss 22 of the fixing clip 2 is located contacts the end surface of the mouth of the rubber tube 3, and then screw the fixing clip 2 clockwise to screw the bayonet hole 23 into the bottom of the wing plate 31 to achieve clamping and fixing. Then screw the end of the threaded rod 11 away from the handle 12 into the threaded through hole 21, and screw the handle 12 so that the threaded rod 11 passes through the annular boss 22 and enters the inner cavity of the rubber tube 3, and the front end of the threaded rod 11 abuts against the piston in the rubber tube 3. When squeezing glue, the thumb and index finger of the right hand rotate the handle 12, and the force arm acting on the butterfly handle is greater than the force arm acting on the threaded rod 11, so that the threaded rod 11 can be easily and quickly screwed into the threaded channel of the fixing clamp 2, and the piston in the rubber cylinder 3 is axially pushed, so that the glue can be squeezed out from the glue outlet of the rubber cylinder 3 in a labor-saving and efficient manner.

[0032] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A special extrusion device for tube-packed conductive glue, characterized by: Including screw assembly, fixing clamp; The screw rod assembly comprises a threaded rod and a handle; one end of the threaded rod is fixed with a handle, and the handle is used to screw the threaded rod; The center of the fixing clamp is provided with a threaded through hole, and the end of the threaded rod facing away from the handle is inserted into the threaded through hole of the fixing clamp and is threadedly matched with the fixing clamp; the fixing clamp is coaxially installed on the barrel mouth of the rubber cylinder, and the butt joint between the fixing clamp and the barrel mouth is provided with a bayonet for clamping and fixing with the wing plates on both sides of the barrel mouth; An annular boss is provided at the center of the interface between the fixing clamp and the rubber tube mouth, and the annular boss is coaxial with the threaded through hole of the fixing clamp; the outer diameter of the annular boss matches the inner diameter surface of the rubber tube, and the inner diameter of the annular boss is provided with an internal thread for matching with the threaded rod; the annular boss is inserted into the rubber tube to support and guide the threaded rod; The fixing clamp has two radially protruding wings evenly distributed around the circumference, and the wings are matched and docked with the two wing plates of the barrel mouth; a bayonet is provided on one side of each wing, and the bayonet is an arc-shaped bayonet, and the engaging surface of the arc-shaped bayonet is parallel to the fixing clamp and is engaged with a side of the wing plate facing away from the fixing clamp; By rotating the handle of the screw assembly, the threaded rod is pushed axially in the glue barrel, thereby squeezing the glue out of the glue outlet.

2. The special extrusion device for cartridge-packed conductive glue according to claim 1, characterized in that: The distance from the clamping surface of the arc-shaped bayonet to the fixing clip matches the thickness of the wing plate.

3. The special extrusion device for cartridge-packed conductive glue according to claim 1, characterized in that: The outer diameters of the wing plate, the wing portion and the bayonet are all the same.

4. The special extrusion device for cartridge-packed conductive glue according to claim 1, characterized in that: The handle is an inverted eight-shaped butterfly handle, which is fixedly connected to one end of the threaded rod by welding or gluing.

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