Glue filling material limiting device

Abstract

The utility model discloses a glue filling material limiting device, which comprises a tubular glue outlet nozzle, a feeding mechanism for quantitatively conveying glue and a material limiting mechanism for controlling the operation of the feeding mechanism, the material limiting mechanism comprises a base, a movable part and an opening and closing switch, the base is fixed on the glue outlet nozzle, the movable part is movably connected with the glue outlet nozzle and can move along the axial direction of the glue outlet nozzle, and the opening and closing switch is fixed on the base. The on-off switch is in passing connection with the feeding mechanism, and the on-off switch is controlled to be opened and closed by a rubber tube driving movable part sleeved on the rubber outlet nozzle. The opening in one end of the rubber pipe is arranged on the rubber outlet nozzle in a sleeving mode, then the opening end of the rubber pipe is used for pushing the movable part to move on the rubber outlet nozzle, the rubber pipe can be pushed to move downwards after rubber materials are poured into the rubber pipe, the movable part gradually moves downwards under the action of self gravity and finally moves to the initial position, and when the movable part moves to the highest position and the lowest position, the movable part moves downwards. When the rubber hose is replaced, the rubber hose contacts with the starting switch, so that the feeding mechanism is controlled to convey rubber and stop conveying the rubber, an operator can replace the rubber hose conveniently, and waste of the rubber is avoided.

Description

Technical Field

[0001] This utility model relates to the field of glue dispensing machine technology, and more specifically, to a glue dispensing limiting device. Background Technology

[0002] In a glue dispensing machine, glue flows out through a tubular nozzle. One end of the nozzle has an opening, which is fitted onto the nozzle. Once the nozzle is full of glue, it is removed, completing the dispensing process. This process is typically done manually. With a continuous flow of glue from the nozzle, workers need to constantly and quickly change the nozzle to prevent dripping and waste. This results in a demanding workload for the workers. Therefore, a flow-limiting device is needed to restrict the flow rate and reduce the workload of the operators. Utility Model Content

[0003] The purpose of this invention is to provide a glue dispensing and limiting device to solve the above-mentioned problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A glue dispensing and limiting device includes a tubular glue nozzle, a feeding mechanism for quantitatively conveying glue, and a limiting mechanism for controlling the operation of the feeding mechanism. The limiting mechanism includes a base, a movable component, and an on / off switch. The base is fixed to the glue nozzle, the movable component is movably connected to the glue nozzle and can move along the axial direction of the glue nozzle, and the on / off switch is connected to the feeding mechanism. The on / off switch is controlled by a glue tube sleeved on the glue nozzle, which drives the movable component to open and close.

[0006] Preferably, the material limiting mechanism further includes a connecting assembly for stabilizing the movable part. The connecting assembly includes a connecting rod and a return spring. The movable part is located below the base. One end of the connecting rod is connected to the base, and the other end is connected to the movable part. The return spring is sleeved on the connecting rod, with one end abutting against a reference and the other end abutting against the movable part.

[0007] Preferably, the on / off switch includes an on switch and an off switch. The on switch is mounted on the base, and the off switch is suspended below the movable part. When the movable part moves upward and contacts the on switch, the on switch controls the feeding mechanism to convey the adhesive material. Conversely, when the movable part moves downward and contacts the off switch, the off switch controls the feeding mechanism to stop conveying the adhesive material.

[0008] Preferably, the feeding mechanism includes a telescopic device, a glue injection pipe, and a glue delivery pipe. The on / off switch is communicatively connected to the telescopic device. One end of the glue delivery pipe is connected to the glue storage device, and the other end is connected to the glue injection pipe. A one-way valve is provided at the connection between the glue injection pipe and the glue delivery pipe to control the glue to flow only in the direction of the glue injection pipe. The telescopic device is installed at the top of the glue injection pipe, and its piston rod extends and retracts into the glue injection pipe. A piston is installed at the end of the piston rod. The top of the glue outlet is connected to the glue injection pipe.

[0009] Preferably, both the start switch and the stop switch are contact sensors.

[0010] Preferably, the top end of the dispensing nozzle is fixedly connected to the bottom end of the injection nozzle by a clamp.

[0011] Preferably, the lower outer circumferential surface of the dispensing nozzle is provided with a groove or external thread for connecting the inner liner.

[0012] The beneficial effects of this utility model are as follows: the opening at one end of the rubber tube is fitted onto the dispensing nozzle. Then, the open end of the rubber tube pushes the movable part to move on the dispensing nozzle. After the rubber material is poured into the rubber tube, it will push the rubber tube downward. The movable part gradually moves down under its own gravity and eventually moves to the initial position. When the movable part moves to the highest and lowest positions, it will contact the start switch, thereby controlling the feeding mechanism to convey and stop conveying the rubber material, which makes it convenient for operators to replace the rubber tube and avoids waste of rubber material. Attached Figure Description

[0013] Figure 1 Schematic diagram of the glue dispensing and limiting device Figure 1 ;

[0014] Figure 2 Schematic diagram of the glue dispensing and limiting device Figure 2 ;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0016] In the diagram: 1. Glue hose; 2. Glue nozzle; 3. Feeding mechanism; 31. Telescopic device; 311. Piston; 32. Glue injection hose; 33. Glue delivery hose; 4. Material limiting mechanism; 41. Base; 42. Moving part; 43. On / off switch; 431. Start switch; 432. Close switch; 44. Connecting assembly; 441. Linkage rod; 442. Return spring; 5. One-way valve; 6. Inner liner. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] according to Figure 1-3 As shown, a glue dispensing and limiting device includes a tubular glue nozzle 2, a feeding mechanism 3 for quantitatively conveying glue, and a limiting mechanism 4 for controlling the operation of the feeding mechanism 3. The limiting mechanism 4 includes a base 41, a movable part 42, and an on / off switch 43. The base is sleeved on the glue nozzle 2 and is used to achieve an interference fit with the glue nozzle 2. The movable part 42 is also sleeved on the glue nozzle 2 and is movably connected to the glue nozzle 2, and can move along the axial direction of the glue nozzle 2. The on / off switch 43 is connected to the feeding mechanism 3 and is controlled by the glue tube 1 sleeved on the glue nozzle 2 to drive the movable part 42 to open and close.

[0021] according to Figure 1-3 As shown, the limiting mechanism 4 also includes a connecting assembly 44 for stabilizing the movable part 42. The connecting assembly 44 includes a connecting rod 441 and a return spring 442. The movable part 42 is located below the base 41. One end of the connecting rod 441 is connected to the base 41, and the other end is connected to the movable part 42. The return spring 442 is sleeved on the connecting rod 441, with one end abutting against a reference and the other end abutting against the movable part 42. The on / off switch 43 includes an on switch 431 and an off switch 432. The on switch 431 is mounted on the base 41, and the off switch 432 is suspended below the movable part 42. When the movable part 42 moves upward and contacts the on switch 431, the on switch 431 controls the feeding mechanism 3 to convey the adhesive material. Conversely, when the movable part 42 moves downward and contacts the off switch 432, the off switch 432 controls the feeding mechanism 3 to stop conveying the adhesive material.

[0022] according to Figure 1-3As shown, the feeding mechanism 3 includes a telescopic device 31, a glue injection pipe 321, and a glue delivery pipe 331. The on / off switch 43 is communicatively connected to the telescopic device 31. One end of the glue delivery pipe 331 is used to connect to the glue storage device, and the other end is connected to the glue injection pipe 321. A one-way valve 5 is provided at the connection between the glue injection pipe 321 and the glue delivery pipe 331 to control the glue to flow only in the direction of the glue injection pipe 321. The telescopic device 31 is installed at the top of the glue injection pipe 321, and its piston rod extends into the glue injection pipe 321. A piston 311 is installed at the end of the piston rod. The top of the glue outlet 2 is connected to the glue injection pipe 321, and the top of the glue outlet 2 is fixedly connected to the bottom of the glue injection nozzle by a clamp.

[0023] It should be noted that both the start switch 431 and the stop switch 432 are contact sensors. The movable part 42 is made of a metal sheet with a through hole at its circular part for the nozzle 2 to pass through. The connecting rod 441 is a screw with external threads at one end. The top end of the screw is fixedly connected to the base, and the bottom end of the screw is threaded with a nut located below the movable part 42. Thus, the screw and the movable part 42 are movably connected. The telescopic device 31 is a hydraulic cylinder or a pneumatic cylinder; a pneumatic cylinder is preferred in this application.

[0024] In addition, the lower outer circumference of the dispensing nozzle 2 is provided with a groove or external thread for connecting the inner liner 6. The inner liner and the dispensing nozzle 2 are easily detached, and the outer diameter of the inner liner can also be selected so that the dispensing nozzle 2 can be adapted to the hose 1 of different diameters. When the diameter of the hose 1 is larger than the diameter of the dispensing nozzle 2, the inner liner with the same inner diameter as the hose 1 can be rotated to detachably fix the inner liner to the bottom end of the dispensing nozzle 2. This allows the dispensing nozzle 2 to smoothly push the hose 1 downward when dispensing glue into the hose 1, and prevents the glue from overflowing through the gap between the dispensing nozzle 2 and the hose 1.

[0025] according to Figure 1-3As shown, the opening at one end of the tubing 1 is fitted onto the dispensing nozzle 2. Then, the open end of the tubing 1 pushes the movable part 42 to move on the dispensing nozzle 2. The movable part contacts the start switch 431, and the start switch 431 opens the piston rod of the telescopic device 31 to move downward, causing the adhesive in the dispensing tube 321 to move downward. After the adhesive is poured into the tubing 1, it will push the tubing 1 downward. The movable part 42, under its own gravity and the thrust of the return spring 442, gradually moves downward with the tubing 1, eventually moving to the initial position and contacting the stop switch 432. The stop switch 432 controls the piston rod of the telescopic device 31 to stop moving downward and retract backward, preventing the adhesive from continuing to flow out of the dispensing nozzle 2. When the piston rod of the telescopic device 31 is extending, the one-way valve 5 is in the closed state. When the piston rod of the telescopic device 31 retracts, the one-way valve 5 is in the open state, allowing the adhesive in the dispensing tube 331 to flow into the dispensing tube 321. When the movable part 42 moves to the highest and lowest positions, it will contact the start switch 431, thereby controlling the feeding mechanism 3 to convey and stop conveying the rubber material, making it convenient for operators to replace the rubber tube 1 and avoiding waste of rubber material.

[0026] It should be noted here that the glue storage device is also called the glue injection device, and it is set up near the material limiting device. The shut-off switch 432 is installed on the glue storage device.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A glue dispensing device comprising a tubular glue nozzle (2), characterized in that: Also include The material feeding mechanism (3) and the material limiting mechanism (4) for controlling the operation of the material feeding mechanism (3), the material limiting mechanism (4) includes a base (41), a movable element (42) and an on-off switch (43), the base is fixed on the glue nozzle, the movable element (42) is movably connected with the glue nozzle (2) and can move along the axial direction of the glue nozzle (2), the on-off switch (43) is in communication with the material feeding mechanism (3), the on-off switch (43) is driven by the rubber tube (1) sleeved on the glue nozzle (2) to control the opening and closing of the movable element (42).

2. The glue filling and limiting device according to claim 1, characterized in that: The material limiting mechanism (4) further comprises a connecting assembly (44) for stabilizing the movable element (42), the connecting assembly (44) comprises a connecting rod (441) and a reset spring (442), the movable element (42) is located below the base (41), one end of the connecting rod (441) is connected with the base (41), the other end is connected with the movable element (42), the reset spring (442) is sleeved on the connecting rod (441), one end of which abuts against the base (41), the other end abuts against the movable element (42).

3. The glue limiting device of claim 2, wherein: The on-off switch (43) comprises a start switch (431) and a stop switch (432), the start switch (431) is installed on the base (41), the stop switch (432) is suspended below the movable element (42), when the movable element (42) moves upward and contacts with the start switch (431), the start switch (431) controls the material feeding mechanism (3) to deliver the rubber material, on the contrary, when the movable element (42) moves downward and contacts with the stop switch (432), the stop switch (432) controls the material feeding mechanism (3) to stop delivering the rubber material.

4. The glue limiting device of claim 3, wherein: The material feeding mechanism (3) comprises a telescopic device (31), a glue injection pipe (32) and a glue feeding pipe (33), the on-off switch (43) is in communication with the telescopic device (31), one end of the glue feeding pipe (33) is used for connecting with the rubber storage equipment, the other end is in communication with the glue injection pipe (32), a one-way valve (5) for controlling the rubber material to flow only in the direction of the glue injection pipe (32) is arranged at the connection between the glue injection pipe (32) and the glue feeding pipe (33), the telescopic device (31) is installed at the top end of the glue injection pipe (32), the piston rod of the telescopic device (31) is telescoped into the glue injection pipe (32), a piston (311) is installed at the end of the piston rod, the top end of the glue nozzle (2) is connected with the glue injection pipe (32).

5. The glue limiting device of claim 4, wherein: The start switch (431) and the stop switch (432) are both contact sensors.

6. The glue limiting device of claim 5, wherein: The top end of the glue nozzle (2) is fixedly connected with the bottom end of the glue injection pipe through a clamp.

7. The glue limiting device of claim 6, wherein: A clamping groove or an external thread is arranged on the outer circumferential surface of the lower end of the glue nozzle (2) for connecting with the inner liner (6).

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