Dispensing valve

Abstract

The utility model discloses a kind of glue dispensing valves, it includes: glue dispensing valve body one, glue dispensing valve body two, glue feeding barrel, glue dispensing needle, piston assembly, the bottom surface of glue dispensing valve body one is fixedly connected with glue dispensing valve body two, the bottom surface of glue dispensing valve body one is equipped with fixed groove one, the upper surface of glue feeding barrel is equipped with fixed groove two, the shape size of fixed groove one and fixed groove two is consistent, the inside of fixed groove one and fixed groove two is slidably connected with connecting block, the side of glue feeding barrel is provided with sliding slot, the outer surface of glue dispensing valve body two is provided with connecting groove, the inside of sliding slot is slidably connected with fixed buckle one, fixed buckle two respectively, it is convenient to be detached between glue supply pipe, so that both can be cleaned and washed, avoid the plugging caused by material dry and the condition that flow channel is too small, simple structure, easy to operate, help to maintain the service life of component in flow channel assembly, improve reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of dispensing valve devices, and in particular to a dispensing valve. Background Technology

[0002] A dispensing valve is a key component used to precisely control the coating or dispensing process. It is a special valve device that can accurately open and close and control the flow of materials. Dispensing valves are commonly found on various automated production lines for coating and potting, and are used for the precise coating of materials in dots or lines. Application areas include electronics, automotive manufacturing, and home appliances.

[0003] The dispensing valve mainly consists of a main valve body, a lever, and a flow channel assembly. In related technologies, the flow channel assembly of the dispensing valve is often housed in the same housing as other components of the dispensing valve, making it a fixed design. This is not conducive to the disassembly and assembly of the flow channel assembly. During the use of the dispensing valve, blockages may occur at the connection between the flow channel assembly and the dispensing tube due to material drying, and the flow channel inside the flow channel assembly may be too small. The flow channel tube inside the flow channel assembly needs to be replaced and cleaned regularly. Therefore, in order to further improve the overall adaptability of the dispensing valve, we propose a dispensing valve to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a dispensing valve. By separating the dispensing valve body from the flow channel assembly inside the glue delivery tank, and setting a fixing groove 1, a fixing groove 2, and a sliding groove at the connection between the dispensing valve body and the glue delivery tank, and combining the characteristics of the connecting block to insert into the fixing groove 1 and fixing groove 2, the dispensing valve body and the glue delivery tank can be easily separated and fixedly connected. When separated, the flow channel tube in the flow channel assembly is exposed, which facilitates disassembly from the glue supply tube, so that both can be cleaned and washed, avoiding blockage caused by material drying. The structure is simple, easy to operate, helps to maintain the service life of the components in the flow channel assembly, and improves reliability.

[0005] This utility model also provides a dispensing valve having the above-mentioned features, including: a dispensing valve body one, a dispensing valve body two, a glue delivery bucket, a dispensing needle, and a piston assembly. The bottom surface of the dispensing valve body one is fixedly connected to the dispensing valve body two. A fixing groove one is formed on the bottom surface of the dispensing valve body one, and a fixing groove two is formed on the upper surface of the glue delivery bucket. The fixing groove one and fixing groove two have the same shape and size. A connecting block is slidably connected inside the fixing groove one and fixing groove two. A sliding groove is provided on the side of the glue delivery bucket. A connecting groove is provided on the outer surface of the dispensing valve body two. Fixing buckle one and fixing buckle two are slidably connected inside the sliding groove. A flow channel assembly is provided. The flow channel assembly includes flow channel one and flow channel two. The flow channel assembly, flow channel one, and flow channel two are all cylindrical in shape. A guide tube is provided inside the flow channel one. The guide tube is spiral in shape. A guide groove is uniformly provided inside the flow channel two.

[0006] According to the present invention, a dispensing valve body is fixedly connected to a piston assembly, which consists of a cylinder, a piston, and a piston rod spring. This assembly allows the piston to open and close within the valve body, facilitating precise control of material flow and spray volume.

[0007] According to the dispensing valve of this utility model, one end of the fixing buckle one is provided with a connecting groove, and the interior of the connecting groove is provided with a connecting port. This is used to facilitate connection with a connecting rod and enhance the firmness of the connection between fixing buckle one and fixing buckle two.

[0008] According to the dispensing valve of this utility model, a connecting plate is fixedly connected to one end of the front surface of the fixing buckle one. The connecting plate has a mounting hole inside and is located on the outer surface of the connecting groove. This is used to enhance the firmness of the connection between the fixing buckle one, the fixing buckle two and the connecting groove.

[0009] According to the dispensing valve of this utility model, one end of the fixing buckle is fixedly connected to a connecting rod, and the surface of the connecting rod is provided with a friction surface. This is used to facilitate connection with the connection port and to prevent the connecting rod from disengaging from the connection port due to vibration.

[0010] According to the present invention, a dispensing valve has a glue supply tube fixedly connected inside the valve body two, a dispensing needle fixedly connected to the bottom surface of the valve body two, and the top end of the glue supply tube communicating with the valve body one. This facilitates the smooth entry of material from the glue supply tube into the dispensing needle.

[0011] According to the present invention, a dispensing valve has a flow channel assembly located inside a glue delivery tank. The end of the second flow channel, away from the first flow channel, passes through the dispensing valve body and is connected to a glue supply pipe, and is equipped with a control valve. It is used to transport material from the supply end to the position of the dispensing needle.

[0012] According to the present invention, a dispensing valve is provided between the valve body and the dispensing needle. The opening and closing of the needle valve allows for precise control of the material spraying amount and spraying time, thereby achieving a high-precision dispensing effect.

[0013] According to the dispensing valve of this utility model, a connecting block is fixedly connected to the top surface of the flow guiding assembly. This is for close connection with the glue dispensing tank.

[0014] Beneficial effects: By separating the dispensing valve body from the flow channel assembly inside the glue delivery tank, and setting a fixing groove 1, a fixing groove 2, and a sliding groove at the connection between the dispensing valve body and the glue delivery tank, and combining the characteristics of the connecting block to insert into the fixing groove 1 and fixing groove 2, the dispensing valve body and the glue delivery tank can be easily separated and fixedly connected. When separated, the flow channel tube in the flow channel assembly is exposed, which facilitates disassembly from the glue supply tube, so that both can be cleaned and washed, avoiding blockage caused by material drying. The structure is simple and easy to operate, which helps to maintain the service life of the components in the flow channel assembly and improves reliability. In addition, by adding a spiral guide tube and a guide groove in the flow channel assembly, the overall flow channel assembly can be improved, and the problem caused by the flow channel being too small can be improved, thereby improving the overall performance and reliability of the flow channel assembly. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall structural diagram of the dispensing valve of this utility model;

[0017] Figure 2 This is an exploded view of the dispensing valve of this utility model;

[0018] Figure 3 This is a diagram showing the internal structure of the dispensing valve of this utility model;

[0019] Figure 4 This is a structural diagram of the fixing buckle for the dispensing valve of this utility model;

[0020] Figure 5 This is an overall structural diagram of the flow channel assembly of this utility model;

[0021] Figure 6 This is a diagram showing the internal structure of the flow channel assembly of this utility model.

[0022] Legend:

[0023] 1. Dispensing valve body one; 110. Fixing groove one; 120. Connecting groove; 101. Dispensing valve body two; 2. Glue delivery bucket; 21. Fixing groove two; 22. Slide groove; 3. Dispensing needle; 4. Connecting block; 5. Fixing buckle one; 501. Connecting port; 502. Mounting hole; 51. Fixing buckle two; 511. Connecting rod; 6. Flow channel assembly; 61. Flow channel one; 601. Guide tube; 62. Flow channel two; 602. Guide groove; 63. Connecting block one; 7. Piston assembly; 8. Glue supply tube. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4 This utility model discloses a dispensing valve, comprising: a dispensing valve body 1, a dispensing valve body 2 101, a glue delivery tank 2, a dispensing needle 3, and a piston assembly 7, forming the entire dispensing valve. The bottom surface of the dispensing valve body 1 is fixedly connected to the dispensing valve body 2 101. A fixing groove 110 is formed on the bottom surface of the dispensing valve body 1, which is used to fix the bottom surface of the dispensing valve body 1 to the dispensing valve body 2 101 by means of the fixing groove 21. A fixing groove 21 is formed on the upper surface of the glue delivery tank 2. The fixing groove 110 and the fixing groove 21 have the same shape and size to facilitate connection. Block 4 connects fixing groove 110 and fixing groove 21. The fixing groove 110 and fixing groove 21 are slidably connected to the inside of the fixing groove 110 and fixing groove 21. The side of the glue dispensing bucket 2 is provided with a sliding groove 22 for separating and joining fixing buckle 1 5 and fixing buckle 2 51. The outer surface of the dispensing valve body 2 101 is provided with a connecting groove 120 for conveniently fixing the glue dispensing bucket 2 and the dispensing valve body 2 101 using fixing buckle 1 5 and fixing buckle 2 51. The inside of the sliding groove 22 is slidably connected to fixing buckle 1 5 and fixing buckle 2 51 respectively, so that the glue dispensing bucket 2 and the dispensing valve body 2 101 can be easily disassembled.

[0026] The dispensing valve body 1 is fixedly connected to the piston assembly 7. The piston assembly 7 consists of a cylinder, a piston, and a piston rod spring, used for the piston to open and close inside the valve body, facilitating precise control of material flow and spray volume. One end of the fixing buckle 5 has a connecting groove with a connecting port 501 inside, facilitating connection with the connecting rod 511 and enhancing the connection between the fixing buckle 5 and the fixing buckle 2 51. A connecting plate is fixedly connected to the front surface of one end of the fixing buckle 5, with a mounting hole 502 inside. The connecting plate is located on the outer surface of the connecting groove, enhancing the connection between the fixing buckle 5, the fixing buckle 2 51, and the connecting groove 120. One end of the fixing buckle 2 51 is fixedly connected to the connecting rod 511. The surface of the connecting rod 511 is provided with a friction surface to facilitate connection with the connection port 501 and prevent the connecting rod 511 from dislodging from the connection port 501 when subjected to vibration. The dispensing valve body 2 101 is fixedly connected to the inside of the dispensing tube 8. The bottom surface of the dispensing valve body 2 101 is fixedly connected to the dispensing needle 3. The top end of the dispensing tube 8 is connected to the dispensing valve body 1 1 to facilitate the material in the dispensing tube 8 to smoothly enter the dispensing needle 3, thereby completing the dispensing process. A needle valve is provided between the dispensing valve body 2 101 and the dispensing needle 3. The opening and closing of the needle valve can be used to precisely control the amount of material sprayed and the spraying time, thereby achieving a high-precision dispensing effect. The top surface of the flow channel assembly 6 is fixedly connected to the connecting block 1 63, which is used to connect the flow channel assembly 6 to the glue delivery tank 2.

[0027] Reference Figure 5-6 This utility model discloses a dispensing valve, which includes a flow channel assembly 6. The flow channel assembly 6 includes a first flow channel 61 and a second flow channel 62, which optimizes the flow distribution and convergence structure within the flow channel, thereby improving the fluid delivery efficiency. The flow channel assembly 6, the first flow channel 61, and the second flow channel 62 are all cylindrical in shape to enhance the impact resistance of the internal flow channels and facilitate the smooth flow of liquid within the flow channels. The first flow channel 61 is provided with a guide tube 601, which is spiral in shape and is used to induce vortex flow of the fluid, which helps to increase the contact area between the fluid and the flow channel wall. The second flow channel 62 is uniformly provided with guide grooves 602 to generate a capillary effect, thereby improving the local fluid distribution and slowing down the diffusion rate of the fluid, alleviating the pressure drop problem at the flow channel outlet, and thus improving the situation where the flow channel is too small and the flow is not smooth. The flow channel assembly 6 is located inside the glue delivery tank 2 and is used to better fix the overall structure of the flow channel assembly 6. The end of the flow channel 2 62 away from the flow channel 1 61 passes through the dispensing valve body 2 101 and is connected to the glue supply tube 8. It is equipped with a control valve to deliver the material from the supply end to the position of the dispensing needle 3, so that the flow rate remains stable during the dispensing process.

[0028] Working principle: When using this dispensing valve, the connecting block 4 is simultaneously inserted into the interior of the first fixing groove 110 and the second fixing groove 21, so that the threaded hole on the front surface of the connecting block 4 connects the glue delivery barrel 2 with the dispensing valve body 1. Then, the first fixing buckle 5 and the second fixing buckle 51 are moved into the interior of the connecting groove 120 through the sliding groove 22. At the same time, the connecting rod 511 enters the interior of the connecting port 501, so that the connecting groove port coincides with the connecting end of the second fixing buckle 51. Finally, it is fixed to the surface of the second dispensing valve body 101 through the mounting hole 502, so that the dispensing valve as a whole and its components are easy to disassemble and fix. When the liquid in the flow channel assembly 6 flows into the first flow channel 61, it is conveyed to the second flow channel 62 through the spiral guide tube 601. During the process of the liquid being pushed to the glue supply tube 8 and the dispensing needle 3, the guide tube 601 will improve the discontinuous liquid flow.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dispensing valve, characterized by, include: The dispensing valve body 1 (1), dispensing valve body 2 (101), dispensing bucket (2), dispensing needle (3), and piston assembly (7) are provided. The bottom surface of the dispensing valve body 1 (1) is fixedly connected to the dispensing valve body 2 (101). The bottom surface of the dispensing valve body 1 (1) is provided with a fixing groove 1 (110). The upper surface of the dispensing bucket (2) is provided with a fixing groove 2 (21). The fixing groove 1 (110) and the fixing groove 2 (21) are the same in shape and size. The fixing groove 1 (110) and the fixing groove 2 (21) are slidably connected to each other. The side of the dispensing bucket (2) is provided with a sliding groove (22). The outer surface of the dispensing valve body 2 (101) is provided with a connecting groove (120). The sliding groove (22) is slidably connected to a fixing buckle 1 (5) and a fixing buckle 2 (51). The flow channel assembly (6) includes a first flow channel (61) and a second flow channel (62). The first flow channel (61) and the second flow channel (62) are both cylindrical. The first flow channel (61) is provided with a guide tube (601) inside. The guide tube (601) is spiral in shape. The second flow channel (62) is provided with a guide groove (602) evenly inside.

2. The valve of claim 1, wherein The interior of the dispensing valve body (1) is fixedly connected to the piston assembly (7), which consists of a cylinder, a piston, and a piston rod spring.

3. The valve of claim 1, wherein: One end of the fixing buckle (5) is provided with a connecting slot, and the connecting slot is provided with a connecting port (501).

4. The valve of claim 1, wherein, A connecting plate is fixedly connected to one end of the front surface of the fixing buckle (5), and the connecting plate is provided with an installation hole (502) inside. The connecting plate is located on the outer surface of the connecting groove.

5. The valve of claim 1, wherein, One end of the fixing buckle 2 (51) is fixedly connected to a connecting rod (511), and the surface of the connecting rod (511) is provided with a friction surface.

6. The valve of claim 1, wherein, The dispensing valve body 2 (101) is internally fixedly connected to a glue supply tube (8), and a glue needle (3) is fixedly connected to the bottom surface of the dispensing valve body 2 (101). The top end of the glue supply tube (8) is connected to the dispensing valve body 1 (1).

7. The valve of claim 1, wherein, The flow channel assembly (6) is located inside the glue delivery tank (2). The end of the flow channel two (62) away from the flow channel one (61) passes through the glue dispensing valve body two (101) and is connected to the glue supply pipe (8), and is equipped with a control valve.

8. The valve of claim 1, wherein, A needle valve is provided between the dispensing valve body 2 (101) and the dispensing needle (3).

9. The valve of claim 1, wherein, The top surface of the flow channel assembly (6) is fixedly connected to a connecting block (63).

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