Extrusion device for canned glue

Abstract

The utility model relates to an extrusion device for canned glue. The extrusion device comprises a glue tank limiting structure, an extrusion device body and a support. The glue tank limiting structure is used for fixing a glue tank filled with a sample; the extrusion device is used for extruding the sample in the glue tank; and the bracket is used for fixing the glue tank limiting structure and the extrusion device. Wherein the extrusion device comprises a linear driving assembly, a piston is arranged at the execution end of the linear driving assembly, a glue outlet is formed in the middle of the piston, and a sealing assembly matched with the inner wall of the glue tank in shape is arranged on the periphery of the piston. With the adoption of the device, the sample colloid can be quickly extruded out of the colloid tank to be transferred or cleaned, so that the time cost and the labor cost are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of glue gun, especially relates to a kind of extrusion devices for canned glue. BACKGROUND

[0002] In the research and development of high-performance thermosetting resin materials or glue materials, the developed materials usually need to be mixed and then verified. The sample size is small in the research and development, and is usually stored in a cylindrical sample tank with a top opening and a cover. High-performance thermosetting resin materials or glue materials are high in viscosity and easy to stick to hands, and some developed materials have good thixotropy. In the mixing process, it is often necessary to transfer the sample from the sample tank to the mixing tube. In order to completely transfer the sample from the sample tank and reduce waste, the operator can only spend a lot of time scraping the glue from the tank manually. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to provide an extrusion device for canned glue, which improves the scraping and transferring efficiency of resin materials or glue materials in the sample tank.

[0004] The utility model adopts the technical scheme that an extrusion device for canned glue is provided, which comprises: a glue tank limiting structure for fixing a glue tank containing a sample; an extrusion device for extruding the sample in the glue tank, comprising a linear drive assembly provided with a piston at the execution end, a glue outlet is opened in the middle of the piston, a communication pipe for communicating with a two-component glue pipe is connected to the glue outlet, and a sealing assembly matched with the shape of the inner wall of the glue tank is arranged on the circumference of the piston; the sealing assembly comprises: at least two circles of rubber paddles arranged on the circumference of the piston, the outer diameter of the rubber paddles is matched with the inner diameter of the glue tank in a clearance fit, and a hollow O-ring is arranged between the two circles of rubber paddles; and a support for fixing the glue tank limiting structure and the extrusion device.

[0005] Preferably, the glue tank limiting structure comprises a limiting groove matched with the outer dimensions of the glue tank, and a tank opening is formed on the side of the limiting groove facing the extrusion device.

[0006] Preferably, the limiting groove is in the shape of a semicircular arc.

[0007] Preferably, the linear drive assembly comprises: a connecting rod connected to one end of the piston; a transmission mechanism connected to the other end of the connecting rod; and a servo motor connected to the other end of the transmission mechanism, for driving the connecting rod to stretch and contract in the direction of the glue tank limiting mechanism.

[0008] Preferably, the transmission mechanism is a ball screw transmission, and the servo motor is a rotary motor.

[0009] Preferably, the number of connecting rods is two, and they are arranged side by side.

[0010] Preferably, the dial piece is integrally formed with the piston, both of which are made of rubber material, the hollow O-shaped ring is located between two adjacent rubber dial pieces, the inner side wall of the hollow O-shaped ring is in transition fit with the peripheral wall of the piston, and the outer side wall of the hollow O-shaped ring is in clearance fit with the inner wall of the glue tank.

[0011] Preferably, a filter screen is arranged in the glue outlet.

[0012] Preferably, the support is in the shape of a gun, comprising a gun body and a handle, the glue tank limiting structure is arranged at the gun head side of the gun body, the extrusion device is arranged at the gun tail side of the gun body, and the handle is provided with a trigger switch for controlling the linear driving assembly.

[0013] The extrusion device for canned glue has the advantages that:

[0014] 1. The device can quickly extrude the sample glue from the glue tank for transfer or cleaning, greatly reducing the time cost and labor cost;

[0015] 2. Through the design of the piston and the sealing assembly, the rubber dial piece and the hollow O-shaped ring cooperate with each other, so that after the sealing fails, only the hollow O-shaped ring, the smallest unit of the device, needs to be replaced for continuous use, which is convenient to maintain and can be used for a long time;

[0016] 3. The filter screen arranged at the glue outlet of the piston can mix the liquid and agglomerated precipitates in the sample that have been stored for a long time, and uniformly draw glue. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the extrusion device for canned glue.

[0018] Among them, the sign explanation: 1-glue tank limiting structure;101-baffle;102-limiting groove;2-piston;201-filter screen;202-glue outlet;203-rubber dial piece;204-hollow O-shaped ring;205-communication pipe;3-extrusion device;301-connecting rod;302-servo motor;303-trigger switch;4-support;401-gun body;402-handle;5-glue tank. DETAILED DESCRIPTION

[0019] The present application will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not to limit the scope of the present application. In addition, it should be understood that after reading the content taught by the present application, those skilled in the art can make various changes or modifications to the present application, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0020] As Figure 1 The utility model provides a kind of extrusion device for canned glue, including glue tank limiting structure 1, extrusion device 3 and support 4.The glue tank limiting structure 1 is used to fix the sample-filled glue tank 5;The extrusion device 3 is used to extrude the sample in the glue tank 5;The support 4 is used to fix the glue tank limiting structure 1 and extrusion device 3.Wherein, the extrusion device 3 includes the linear drive assembly with piston 2 in execution end, the middle part of the piston 2 is opened with glue outlet 202, and the circumference of the piston 2 is equipped with the sealing assembly matched with the shape of the inner wall of the glue tank 5.

[0021] The glue tank limiting structure 1 includes the limiting groove 102 matched with the external size of the glue tank 5, and the limiting groove 102 is opened with the tank opening on the side towards the extrusion device 3.In a specific embodiment, the shape of the limiting groove 102 is semicircular arc, and the limiting groove 102 is provided with a baffle 101 on the side away from the piston 2, so that the glue tank 5 can be directly put into the limiting groove 102 from the side, while ensuring that the glue tank 5 will not come out of the limiting groove 102 when it is pressed.

[0022] The linear drive assembly includes connecting rod 301, transmission mechanism and servo motor 302, wherein one end of the connecting rod 301 is connected with the piston 2;One end of the transmission mechanism is connected with the other end of the connecting rod 301;One end of the servo motor 302 is connected with the other end of the transmission mechanism, for driving the connecting rod 301 to stretch and retract towards the direction of the glue tank 5 limiting mechanism.

[0023] In a specific embodiment, the transmission mechanism is ball screw transmission, the servo motor 302 is rotary motor, and the number of the connecting rod 301 is two and arranged side by side.Ball screw transmission is a kind of high-precision, high-efficiency mechanical transmission mode, mainly composed of screw, nut and ball.The screw is a rotating part, and a semicircular thread groove is processed on it for ball rolling;The nut is used to fix the load to be moved, and also has a semicircular thread groove similar to the screw inside, which together with the thread groove on the screw forms a circular thread groove;The ball directly bears the load and simultaneously acts as an intermediate transmission element to transfer motion in a rolling manner.The rotary motion provided by the rotary motor to the screw is converted into the stretching and retracting motion of the nut along the length direction of the screw through ball screw transmission, and the stretching and retracting motion of the connecting rod 301 can be realized by connecting the nut with the connecting rod 301.

[0024] In other embodiments, the transmission mechanism can also be a gear rack transmission or the like rotation-linear transmission. When the transmission mechanism is a gear rack transmission, the servo motor 302 is a rotary motor for driving the gear to rotate, the surface of the connecting rod 301 is provided with a rack meshing with the gear, and the linear motion of the rack is driven by the rotary motion of the gear. The rack is connected with the connecting rod 301, so that the extension and contraction motion of the connecting rod 301 is realized.

[0025] In other embodiments, the servo motor 302 can directly adopt a telescopic motor, the telescopic end of which is directly connected with the connecting rod 301 to drive the connecting rod 301 to extend and contract.

[0026] In a specific embodiment, the piston 2 is provided with at least two circles of rubber paddles 203, and the outer diameter of the rubber paddles 203 is in clearance fit with the inner diameter of the glue tank 5. The adjacent two circles of rubber paddles 203 are provided with a hollow O-shaped ring 204, the inner side wall of the hollow O-shaped ring 204 is in transition fit with the peripheral wall of the piston 2, and the outer side wall of the hollow O-shaped ring 204 is in clearance fit with the inner wall of the glue tank 5. By arranging the rubber paddles 203 and the hollow O-shaped ring 204 outside the piston 2, only the smallest unit of the device, the hollow O-shaped ring 204, needs to be replaced after the sealing failure, so that the device can continue to be used, maintenance is convenient, and the device can be used for a long time.

[0027] The glue outlet 202 is provided with a filter screen 201. By arranging the filter screen 201 at the glue outlet 202 of the piston 2, the liquid in the glue separated by phase separation and the agglomerated precipitate in the sample left for too long are mixed, and the glue is uniformly drawn.

[0028] In a specific embodiment, the glue outlet 202 is provided with a communication pipe 205, and the other end of the communication pipe 205 is provided with a connector which can be directly communicated with a glue pipe.

[0029] In other embodiments, the glue outlet 202 can also be arranged on the side of the piston 2, or a plurality of glue outlets 202 are arranged to improve the efficiency of extrusion.

[0030] The support 4 is in the shape of a gun and includes a gun body 401 and a handle 402. The glue tank limiting structure 1 is arranged on the gun head side of the gun body 401, the extrusion device 3 is arranged on the gun tail side of the gun body 401, and the handle 402 is provided with a trigger switch 303 for controlling the linear drive assembly.

[0031] The utility model in use includes the following steps:

[0032] S1: vertically arranging the support 4, vertically upwardly arranging the glue tank limiting structure 1, and then clamping the glue tank 5 provided with a sample into the limiting groove 102;

[0033] S2: Press the trigger switch 303 to pre-start the linear drive assembly, push the piston 2 to the tank opening of the glue tank 5, and determine that the piston 2 is opposite the tank opening of the glue tank 5.

[0034] S3: Connect the glue outlet 202 of the piston 2 with the communication pipe 205, and connect the other end of the communication pipe 205 with the two-component glue pipe.

[0035] S4: Press the trigger switch 303 to extrude the sample into the glue tank 5, and the sample flows out to the middle glue outlet of the piston 2 under pressure, so as to discharge the glue from the connecting pipe to the glue pipe for the next step of mixing.

Claims

1. An extrusion device for potting adhesive, characterized by comprising: The utility model relates to a two-component glue extruding device, comprising: a glue tank limiting structure (1) for fixing a glue tank (5) containing a sample; an extruding device (3) for extruding the sample in the glue tank (5), comprising a linear driving assembly with a piston (2) at the execution end, a glue outlet (202) in the middle of the piston (2), a communication pipe (205) for connecting the two-component glue pipe outside the glue outlet (202), and a sealing assembly on the circumference of the piston (2) matching the shape of the inner wall of the glue tank (5); the sealing assembly comprises at least two circles of rubber paddles (203) on the circumference of the piston (2), and the outer diameter of the rubber paddles (203) is in clearance fit with the inner diameter of the glue tank (5); a hollow O-shaped ring (204) between the two circles of rubber paddles (203); a support (4) for fixing the glue tank limiting structure (1) and the extruding device (3).

2. An extrusion device (3) for potting glue according to claim 1, characterized in that The glue tank limiting structure (1) comprises a limiting groove (102) matching the outer dimensions of the glue tank (5), and the limiting groove (102) has a tank opening on the side facing the extruding device (3).

3. An extrusion device (3) for potting glue according to claim 2, characterized in that The limiting groove (102) is in the shape of a semicircular arc.

4. An extrusion device (3) for potting glue according to claim 1, characterized in that The linear driving assembly comprises: a connecting rod (301) connected to one end of the piston (2); a transmission mechanism connected to the other end of the connecting rod (301); a servo motor (302) connected to the other end of the transmission mechanism for driving the connecting rod (301) to stretch and retract towards the glue tank (5) limiting mechanism.

5. An extrusion device (3) for potting glue according to claim 4, characterized in that The transmission mechanism is a ball screw transmission, and the servo motor (302) is a rotary motor.

6. An extrusion device (3) for potting glue according to claim 4, characterized in that The number of connecting rods (301) is two, arranged side by side.

7. An extrusion device (3) for potting glue according to claim 1, characterized in that The paddles and the piston (2) are integrally formed and made of rubber, the hollow O-shaped ring (204) is located between the two circles of rubber paddles (203), the inner side wall of the hollow O-shaped ring (204) is in transition fit with the peripheral wall of the piston (2), and the outer side wall of the hollow O-shaped ring (204) is in clearance fit with the inner wall of the glue tank (5).

8. An extrusion device (3) for potting glue according to claim 1, characterized in that A filter screen (201) is arranged in the glue outlet (202).

9. An extrusion device (3) for potting glue according to claim 1, characterized in that The support (4) is in the shape of a gun, comprising a gun body (401) and a handle (402), the glue tank limiting structure (1) is arranged at the gun head side of the gun body (401), the extruding device (3) is arranged at the gun tail side of the gun body (401), and the handle (402) is provided with a trigger switch (303) for controlling the linear driving assembly.

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