Precise dispensing valve

Abstract

The utility model belongs to the technical field of dispensing valves, and particularly relates to a precise dispensing valve, which comprises an air cylinder, a valve body, a piston rod, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor, a pressure sensor and a pressure sensor, and is characterized in that the air cylinder comprises an air cylinder main body and a piston rod; the valve body is connected with the air cylinder, a needle hitting hole is formed in the valve body and extends in the axial direction of the valve body, a fluid cavity is further formed in the end, away from the air cylinder, of the valve body, the needle hitting hole is communicated with the fluid cavity, a glue inlet hole is further formed in the valve body and is communicated with the needle hitting hole, and the glue inlet hole is communicated with the needle hitting hole. And glue can enter the fluid cavity through the glue inlet hole and the needle striking hole. The precise dispensing valve has the effects that overflowing glue can be wiped away, so that the accuracy of the watering amount of dispensing is improved, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glue dispensing valves, and in particular relates to a precision glue dispensing valve. Background Art

[0002] A dispensing valve achieves its dispensing function by rapidly dispensing the fluid through the piston motion of a striker within the valve body under external pressure. In traditional dispensing devices, the striker is attached to a compression spring, which is adjusted by a knob to provide external pressure by adjusting the compression of the spring against the striker.

[0003] Among them, for the glue dispensed by the dispensing valve, there will still be glue overflow for the sealing of the striker. The overflowed glue is easy to adhere to the dispensing part or the nozzle, thereby causing a decrease or increase in the amount of glue dispensed and a decrease in product quality. Utility Model Content

[0004] The purpose of the utility model is to provide a precision dispensing valve to solve the technical problem that overflowed glue easily adheres to the dispensing part or the nozzle, thereby causing a decrease or increase in the amount of glue dispensed and a decrease in product quality. The utility model can wipe off the overflowed glue to improve the accuracy of the water dispensing amount and improve product quality.

[0005] In order to solve the above technical problems, the utility model provides a precision dispensing valve, comprising:

[0006] A cylinder, comprising a cylinder body and a piston rod, wherein the cylinder body can be inflated and deflated to drive the piston rod to move;

[0007] A valve body is connected to the cylinder and has a striker hole therein, the striker hole extending axially along the valve body. A fluid cavity is further defined at one end of the valve body away from the cylinder, the striker hole being in communication with the fluid cavity. A glue inlet hole is further defined on the valve body, the glue inlet hole being in communication with the striker hole, and the glue can enter the fluid cavity through the glue inlet hole and the striker hole.

[0008] a nozzle, the nozzle being arranged at one end of the valve body away from the cylinder and being in communication with the fluid chamber;

[0009] a striker, which is inserted into the striker hole and is slidable relative to the striker hole, the piston rod is pressed against one end of the striker, and the other end of the striker is pressed against the nozzle to block the colloid from being ejected through the nozzle;

[0010] and a driving mechanism, linked to the striker, capable of driving the striker to slide against the pressure of the piston rod;

[0011] A glue erasing mechanism is provided beside the nozzle. The glue erasing mechanism comprises a slide rail and a replaceable wiper block provided on the slide rail. The replaceable wiper block abuts against the side of the nozzle.

[0012] Furthermore, there are two eraser mechanisms provided and arranged on both sides of the nozzle.

[0013] Furthermore, the replaceable wiper block includes a slider arranged on the slide rail and an elastic wiper arranged on the side of the slider, the elastic wiper body is provided with an embedded block, the slider is recessed with a groove for the embedded block, and the embedded block is fixed in the groove by bolts.

[0014] Furthermore, the side of the elastic rubbing body is provided with a serrated protrusion.

[0015] Furthermore, a holding dish is provided below the elastic wiping body.

[0016] Furthermore, the slide rail is arranged on the cylinder.

[0017] The beneficial effects of the utility model are:

[0018] 1. Use the replaceable wiper of the eraser mechanism to wipe away the glue at the nozzle, thereby improving the success rate of product dispensing and improving the yield rate.

[0019] 2. The embedded block of the replaceable wiper block is fixed in the groove by bolts, which makes it convenient for users to replace the elastic wiper on the embedded block.

[0020] 3. The elastic wiper can elastically abut against the nozzle to reduce damage to the nozzle. It can also make the elastic wiper contact the nozzle more through elastic deformation to improve the cleanliness of wiping.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of the precision dispensing valve of the utility model;

[0024] Figure 2 The utility model is a structural schematic diagram of a replaceable wiper of a precision dispensing valve.

[0025] In the picture:

[0026] 1. Cylinder; 11. Cylinder body; 12. Piston rod;

[0027] 2. Valve body; 21. Strike pin hole; 22. Fluid cavity; 23. Glue inlet hole;

[0028] 3. Nozzle;

[0029] 4. Driving mechanism;

[0030] 5. Glue erasing mechanism; 51. Slide rail; 52. Replaceable eraser; 53. Slider; 531. Groove; 54. Elastic eraser; 55. Embedded block; 56. Serrated protrusion;

[0031] 6. Serving dish. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] Example:

[0034] like Figures 1 to 2 As shown, a precision dispensing valve includes: a cylinder 1, including a cylinder 1 main body and a piston rod 12, the cylinder 1 main body can be inflated and deflated to drive the piston rod 12 to move; a valve body 2, connected to the cylinder 1, with a striker hole 21 provided therein, the striker hole 21 extending along the axial direction of the valve body 2, and a fluid cavity 22 is also provided at the end of the valve body 2 away from the cylinder 1, the striker hole 21 is connected to the fluid cavity 22, and a glue inlet hole 23 is also provided on the valve body 2, and the glue inlet hole 23 is connected to the striker hole 21, and the glue can enter the fluid cavity 22 through the glue inlet hole 23 and the striker hole 21; a nozzle 3, the nozzle 3 is arranged at the end of the valve body 2 away from the cylinder 1, and is connected to the fluid cavity 22. The striker is inserted into the striker hole 21 and is slidable relative to the striker hole 21. The piston rod 12 is pressed on one end of the striker, and the other end of the striker is pressed on the nozzle 3 to block the colloid from being ejected through the nozzle 3; and the driving mechanism 4 is linked to the striker, and the driving mechanism 4 can drive the striker to overcome the pressure of the piston rod 12 and slide.

[0035] like Figures 1 to 2As shown, a glue wiping mechanism 5 is provided next to the nozzle 3. The glue wiping mechanism 5 includes a slide rail 51 and a replaceable wiper 52 provided on the slide rail 51. The slide rail 51 is provided on the cylinder 1, and the replaceable wiper 52 abuts the side of the nozzle 3. Two glue wiping mechanisms 5 are provided and are arranged on both sides of the nozzle 3. The nozzle 3 can be wiped from both sides, improving the wiping cleanliness and reducing the situation where glue adheres to the nozzle 3. It is suitable for glue with better viscosity.

[0036] The replaceable wiper 52 includes a slider 53 mounted on the slide rail 51 and an elastic wiper 54 mounted on the side of the slider 53. The elastic wiper 54 is provided with an insert 55. The slider 53 has a recess 531 for the insert 55, which is secured to the recess 531 by bolts. The user secures the elastic wiper 54 with the bolts, making installation easier. After a period of use, when the elastic wiper 54 becomes sticky with glue, the bolts can be removed, making replacement of the new elastic wiper 54 more convenient.

[0037] In this embodiment, a serrated protrusion 56 is provided on the side of the elastic wiping body 54 , which facilitates the slope of the serrated protrusion 56 to wipe the nozzle 3 , thereby better wiping and cleaning the nozzle 3 .

[0038] like Figures 1 to 2 As shown, a holding dish 6 is provided below the elastic wiping body 54 to catch the glue lumps wiped off by the elastic wiping body 54 and improve the cleanliness during use.

[0039] In summary, the replaceable wiper 52 of the glue-wiping mechanism 5 wipes away glue from the nozzle 3, thereby improving the success rate of glue dispensing and the yield rate of finished products. The insert 55 of the replaceable wiper 52 is fixed in the groove 531 via bolts, making it easy for the user to replace the elastic wiper 54 on the insert 55. The elastic wiper 54 elastically abuts against the nozzle 3, reducing damage to the nozzle 3. It also elastically deforms, allowing the elastic wiper 54 to contact the nozzle 3 more effectively, improving the cleanliness of the wipe.

[0040] The various devices selected in this application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0041] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A precision dispensing valve, characterized in that: include: A cylinder (1) comprises a cylinder (1) body and a piston rod (12), wherein the cylinder (1) body can be inflated and deflated to drive the piston rod (12) to move; The valve body (2) is connected to the cylinder (1) and is provided with a striker hole (21) therein, the striker hole (21) extending along the axial direction of the valve body (2), and a fluid cavity (22) is further provided at one end of the valve body (2) away from the cylinder (1), the striker hole (21) being in communication with the fluid cavity (22), and a glue inlet hole (23) is further provided on the valve body (2), and the glue inlet hole (23) is in communication with the striker hole (21), so that the glue can enter the fluid cavity (22) through the glue inlet hole (23) and the striker hole (21); a nozzle (3), the nozzle (3) being arranged at an end of the valve body (2) away from the cylinder (1) and being in communication with the fluid chamber (22); A striker is inserted into the striker hole (21) and is slidable relative to the striker hole (21), the piston rod (12) is pressed against one end of the striker, and the other end of the striker is pressed against the nozzle (3) to block the colloid from being ejected through the nozzle (3); and a driving mechanism (4) linked to the striker, wherein the driving mechanism (4) is capable of driving the striker to slide against the pressure of the piston rod (12); A glue erasing mechanism (5) is provided beside the nozzle (3). The glue erasing mechanism (5) comprises a slide rail (51) and a replaceable eraser (52) provided on the slide rail (51). The replaceable eraser (52) abuts against the side of the nozzle (3).

2. A precision dispensing valve according to claim 1, characterized in that: The glue erasing mechanisms (5) are provided in two and are arranged on both sides of the nozzle (3).

3. A precision dispensing valve according to claim 2, characterized in that: The replaceable wiper (52) comprises a slider (53) arranged on the slide rail (51) and an elastic wiper (54) arranged on the side of the slider (53); an embedded block (55) is provided on the elastic wiper (54); the slider (53) is recessed with a groove (531) for the embedded block (55); and the embedded block (55) is fixed in the groove (531) by a bolt.

4. A precision dispensing valve according to claim 3, characterized in that: The side of the elastic rubbing body (54) is provided with a sawtooth-shaped protrusion (56).

5. A precision dispensing valve according to claim 4, characterized in that: A holding dish (6) is provided below the elastic rubbing body (54).

6. A precision dispensing valve according to claim 5, characterized in that: The slide rail (51) is arranged on the cylinder (1).

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