Anti-blocking mechanism for dispensing valve

Abstract

The utility model relates to an anti-blocking mechanism of a dispensing valve, which comprises a dispensing valve body, a control grip and a wiping mechanism, the dispensing valve body and the control grip are connected and fixed up and down, the wiping mechanism is arranged at the glue outlet end of the dispensing valve body, and the wiping mechanism and the control grip are connected and fixed; the wiping mechanism comprises an external frame, a movable plate, a moving plate, a wiping plate, an axial moving mechanism and a radial moving mechanism. The plastic needle wiping device has the advantages that the wiping plate made of cleaning cloth is moved through the axial moving mechanism and the radial moving mechanism which are externally connected with the front end of the frame, the outer wall of a plastic needle can be evenly attached through the elasticity of the cleaning cloth, glue liquid attached to the outer wall of the plastic needle is cleaned under the condition that the plastic needle is not abraded, and the service life of the plastic needle is prolonged. And the phenomenon that the plastic pin outlet is blocked is avoided.

Description

Technical Field

[0001] This utility model relates to an anti-clogging mechanism, and more particularly to an anti-clogging mechanism for a dispensing valve. Background Technology

[0002] Currently, many product processing steps in the manufacturing process require glue dispensing. In some cases, manual glue dispensing is still used for various products. Manual glue dispensing machines generally consist of a control handle and a dispensing valve. During manual dispensing, glue residue adheres to the dispensing nozzle as it flows out. Over time, this residue accumulates, eventually clogging the nozzle and affecting the quality of the glue dispensing. Summary of the Invention

[0003] This invention aims to overcome the shortcomings of the prior art by providing a convenient, efficient, and practical anti-clogging mechanism for dispensing valves.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: This anti-clogging mechanism for a dispensing valve includes a dispensing valve body, a control handle, and a wiping mechanism. The dispensing valve body and the control handle are connected and fixed vertically. The dispensing end of the dispensing valve body is provided with a wiping mechanism, which is connected and fixed to the control handle. The wiping mechanism includes an outer frame, a movable plate, a moving plate, a wiping plate, an axial movement mechanism, and a radial movement mechanism. Each side of the outer frame is provided with a movable plate. The inner side of each movable plate is provided with a moving plate, and the inner side of the moving plate is provided with a wiping plate. The two wiping plates are opposite each other. One end of the axial movement mechanism passes through the outer frame and is fixed to the movable plate. One end of the radial movement mechanism passes through the movable plate and is fixed to the moving plate.

[0005] Preferably, the axial movement mechanism includes a first guide slide rod, a first baffle, and a first return spring. The first guide slide rod is sleeved with the first return spring, and the end of the first guide slide rod is provided with a first baffle. The first return spring is located between the first baffle and the outer frame.

[0006] Preferably, the radial movement mechanism includes a second guide slide rod, a second baffle, and a second return spring. The second guide slide rod is sleeved with a second return spring, and a second baffle is provided at the end of the second guide slide rod. The second return spring is located between the second baffle and the movable plate.

[0007] Preferably, the movable plate has an auxiliary plate on the side near the active plate, and the front end of the active plate has a groove, in which the auxiliary plate is engaged.

[0008] Preferably, the bottom of the external frame is provided with a snap-fit ​​plate, and the front sides of the control handle are provided with snap-fit ​​grooves, and the snap-fit ​​plate 303 snaps into the inside of the snap-fit ​​grooves.

[0009] Preferably, the bottom of the dispensing valve body is provided with positioning grooves on both sides, and the positioning grooves are provided with slots. The top of the control handle is provided with clamping plates on both sides that cooperate with the positioning grooves, and the inner side of the clamping plates is provided with slots that cooperate with the slots.

[0010] Preferably, the top of the dispensing valve body is provided with an air inlet and a glue inlet.

[0011] Preferably, the wiping plate is made of a wiping cloth.

[0012] The beneficial effects of this utility model are: This utility model moves the wiping plate made of rag through the axial and radial moving mechanisms at the front end of the external frame. The elasticity of the rag can evenly adhere to the outer wall of the glue needle, cleaning the glue adhering to the outer wall of the glue needle without causing wear to the glue needle, thus avoiding the phenomenon of clogging the glue needle outlet. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the wiping mechanism of this utility model;

[0015] Figure 3 This is a schematic diagram of the control grip structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the dispensing valve body structure of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Dispensing valve body; 101. Positioning groove; 1011. Locking groove; 102. Air inlet; 103. Dispensing hole; 2. Control handle; 201. Locking groove; 202. Clamping plate; 2021. Locking plate; 3. External frame; 301. Movable plate; 3011. First guide slide; 3012. First baffle; 3013. First return spring; 302. Moving plate; 3021. Wiping plate; 3022. Auxiliary plate; 3023. Second guide slide; 3024. Second return spring; 3025. Second baffle; 303. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] like Figure 1 , Figure 2 As shown, this anti-clogging mechanism for a dispensing valve includes a dispensing valve body 1, a control handle 2, and a wiping mechanism. The dispensing valve body 1 and the control handle 2 are connected and fixed vertically. The dispensing valve body 1 is provided with a wiping mechanism at the dispensing end. The wiping mechanism is connected and fixed to the control handle 2. The top of the dispensing valve body 1 is provided with an air inlet 102 and a glue inlet 103.

[0020] The wiping mechanism includes an outer frame 3, a movable plate 301, a sliding plate 302, a wiping plate 3021, an axial movement mechanism, and a radial movement mechanism. A movable plate 301 is located on each side of the outer frame 3. A sliding plate 302 is located inside each movable plate 301, and a wiping plate 3021 is located inside each sliding plate 302. The two wiping plates 3021 correspond to each other. One end of the axial movement mechanism passes through the outer frame 3 and is fixed to the movable plate 301, while one end of the radial movement mechanism passes through the movable plate 301 and is fixed to the sliding plate 302. The wiping plate 3021 moves via the axial and radial movement mechanisms. The wiping plate 3021 is made of a cloth; the elasticity of the cloth allows it to evenly adhere to the outer wall of the glue needle, facilitating the cleaning of the glue adhering to the outer wall and preventing blockage of the glue needle outlet.

[0021] The outer frame 3 has at least two sets of axial movement mechanisms and two sets of radial movement mechanisms on one side. The axial movement mechanism includes a first guide slide rod 3011, a first baffle 3012, and a first return spring 3013. The first guide slide rod 3011 is sleeved with the first return spring 3013. The front end of the first guide slide rod 3011 is fixedly connected to the rear end of the movable plate 301. The end of the first guide slide rod 3011 is provided with the first baffle 3012. The first return spring 3013 is located between the first baffle 3012 and the outer frame 3. The first return spring 3013 is initially in a state of compression and storage. Under the action of the first baffle 3012, the first guide slide rod 3011 is reset by the elastic force of the first return spring 3013, thereby axially resetting the wiping plate 3021.

[0022] The radial movement mechanism includes a second guide slide rod 3023, a second baffle 3025, and a second return spring 3024. The second guide slide rod 3023 is sleeved with the second return spring 3024. The front end of the second guide slide rod 3023 is fixedly connected to one end of the moving plate 302. The end of the second guide slide rod 3023 is provided with the second baffle 3025. The second return spring 3024 is located between the second baffle 3025 and the moving plate 301. The second return spring 3024 is initially in a state of compression and storage. Under the action of the second baffle 3025, the second guide slide rod 3023 is reset by the elastic force of the second return spring 3024, thereby radially resetting the wiping plate 3021.

[0023] An auxiliary plate 3022 is provided on the side of the movable plate 301 near the movable plate 301. The front end of the movable plate 301 is provided with a groove, and the auxiliary plate 3022 is stuck in the groove. The auxiliary plate 3022 can easily drive the wiping plate 3021 to move, which is convenient for operation.

[0024] like Figure 2 , Figure 3As shown, the bottom of the external frame 3 is provided with a snap-fit ​​plate 303, and the front sides of the control handle 2 are provided with snap-fit ​​grooves 201. The snap-fit ​​plate 303 is snapped into the inside of the snap-fit ​​grooves 201. The external frame 3 can be easily installed by the cooperation of the snap-fit ​​plate 303 and the snap-fit ​​grooves 201.

[0025] like Figure 3 , Figure 4 As shown, the bottom of the dispensing valve body 1 is provided with positioning grooves 101 on both sides, and a slot 1011 is provided in the positioning grooves 101. The top of the control handle 2 is provided with clamping plates 202 that cooperate with the positioning grooves 101 on both sides. The inner side of the clamping plate 202 is provided with a slot 2021 that cooperates with the slot 1011, so as to facilitate the connection between the dispensing valve body 1 and the control handle 2.

[0026] In use, when wiping is required after dispensing, first hold the control handle 2 with one hand, then hold the two auxiliary plates 3022 with the other hand, and then pull the auxiliary plates 3022 away from the front end of the outer frame 3. The auxiliary plates 3022 drive the movable plate 301 and the wiping plate 3021 to move through the moving plate 302 and the second guide slide rod 3023. While the movable plate 301 moves, it drives the first guide slide rod 3011 to slide along the inside of the outer frame 3. While the first guide slide rod 3011 moves, it squeezes the first return spring 3013 through the first baffle 3012, causing it to contract and store force. When the wiping plate 3021 moves to the glue needle, it then presses the two auxiliary plates 3022 towards the glue needle, causing the auxiliary plates 3022 to move the moving plate 302 and the wiping plate 3021. The moving plate 302 moves the second guide slide rod 3023, which presses the second return spring 3024 through the second baffle 3025, causing it to contract and store force. When the opposite ends of the two wiping plates 3021 are in contact, the auxiliary plates 3022 continue to drive the moving plate 302 and the wiping plate 3021 to move laterally, thereby completing the cleaning of the outer wall at the glue needle.

[0027] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A dispensing valve anti-clogging mechanism, comprising a dispensing valve body (1), a control handle (2) and a wiping mechanism, characterized in that: The glue valve body (1) is connected with the control handle (2) up and down, the glue outlet end of the glue valve body (1) is provided with a wiping mechanism, the wiping mechanism is connected with the control handle (2); the wiping mechanism comprises an external frame (3), a movable plate (301), a moving plate (302), a wiping plate (3021), an axial moving mechanism and a radial moving mechanism, each side of the external frame (3) is provided with a movable plate (301), the inner side of each movable plate (301) is provided with a moving plate (302), the inner side of the moving plate (302) is provided with a wiping plate (3021), the two wiping plates (3021) correspond to each other, one end of the axial moving mechanism penetrates through the external frame (3) and is fixed on the movable plate (301), one end of the radial moving mechanism penetrates through the movable plate (301) and is fixed on the moving plate (302).

2. The valve anti-blocking mechanism of claim 1, wherein: The axial moving mechanism comprises a first guide slide rod (3011), a first baffle (3012) and a first reset spring (3013), the first guide slide rod (3011) is sleeved with the first reset spring (3013), the tail end of the first guide slide rod (3011) is provided with the first baffle (3012), and the first reset spring (3013) is located between the first baffle (3012) and the external frame (3).

3. The glue valve anti-blocking mechanism according to claim 1 or 2, characterized in that: The radial moving mechanism comprises a second guide slide rod (3023), a second baffle (3025) and a second reset spring (3024), the second guide slide rod (3023) is sleeved with the second reset spring (3024), the tail end of the second guide slide rod (3023) is provided with the second baffle (3025), and the second reset spring (3024) is located between the second baffle (3025) and the movable plate (301).

4. The glue valve anti-blocking mechanism of claim 3, wherein: The moving plate (302) is provided with an auxiliary plate (3022) close to one side of the movable plate (301), the front end of the movable plate (301) is provided with a groove, and the auxiliary plate (3022) is clamped in the groove.

5. The valve anti-blocking mechanism of claim 4, wherein: The bottom of the external frame (3) is provided with a clamping plate (303), the front end of the control handle (2) is provided with clamping grooves (201) on both sides, and the clamping plate (303) is clamped in the clamping grooves (201).

6. The glue valve anti-blocking mechanism of claim 5, wherein: The two sides of the bottom of the glue valve body (1) are provided with positioning grooves (101), the positioning grooves (101) are provided with clamping grooves (1011), the top of the control handle (2) is provided with clamping plates (202) on both sides matched with the positioning grooves (101), and the inner side of the clamping plates (202) is provided with clamping plates (2021) matched with the clamping grooves (1011).

7. The valve anti-blocking mechanism of claim 6, wherein: The top of the glue valve body (1) is provided with an air inlet hole (102) and a glue inlet hole (103).

8. The valve anti-blocking mechanism of claim 7, wherein: The wiping plate (3021) is made of a wiping cloth.

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