Dispensing valve

Abstract

The utility model relates to the technical field of dispensing valves, and particularly discloses a dispensing valve which comprises an upper valve body and a lower valve body, the dispensing needle head is fixedly mounted at the bottom of the lower valve body; the disassembling and assembling assembly is used for quickly disassembling and assembling the upper valve body and the lower valve body; the dismounting and mounting assembly comprises first connecting plates fixedly installed on the two sides of the lower valve body. And the limiting grooves are formed in the two ends of the first connecting plate. According to the dispensing valve disclosed by the utility model, when the dispensing valve is disassembled, assembled and cleaned, through the arrangement of the disassembly and assembly component, the upper valve body and the lower valve body can be quickly mounted conveniently and quickly only by screwing the bolts on the two sides of the upper valve body, and compared with the conventional way that a plurality of bolts are mounted by means of a tool, the operation is simpler and more convenient, and after the upper valve body and the lower valve body are butted, the disassembly and assembly are more convenient. The conical sleeve on the lower valve body is tightly attached to the conical groove in the upper valve body, so that the sealing effect after butt joint is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a point gum valve technical field, concretely relates to a point gum valve. BACKGROUND

[0002] The point gum valve is a device for controlling the flow and release of liquid, glue or other viscous substances, which is often used in industrial production for glue dispensing, sealing, coating and filling applications, etc. The point gum valve realizes precise coating or dispensing operation by controlling the flow rate, speed and position of the glue. After the work of the point gum valve is completed, it needs to be disassembled and cleaned to avoid the glue solidifying in the valve body, which causes the valve to be blocked next time.

[0003] The utility model discloses a kind of high-precision injection point gum valves with patent No. CN212652100U, including cylinder, cylinder upper cover, piston, needle valve, connecting seat, material cylinder, glue amount fine adjustment screw, fixed sleeve, material cylinder upper cover, material cylinder lower cover, needle and glue plug, cylinder is fixed in the upper end portion of connecting seat, material cylinder is fixed in the lower end portion of connecting seat, piston is arranged in cylinder, the upper end portion of needle valve is fixedly connected with piston, glue plug is embedded in the lower end portion of material cylinder, the lower end portion of material cylinder lower cover is equipped with the glue spout being communicated with first through-hole, the upper end portion of needle is detachably fixedly connected with glue spout, fixed sleeve is set in the top of cylinder upper cover, glue amount fine adjustment screw is rotated in first screw hole, the lower end portion of glue amount fine adjustment screw can be butted with the upper end portion of piston. The technical scheme of the above-mentioned utility model can accurately adjust the size of glue amount, so that the glue line is more uniform, the precision of gluing is improved, and the operation is simple and practical.

[0004] However, in the prior art, the point gum valve is tightened with multiple different specifications of bolts, and the multiple bolts need to be disassembled with an internal hex wrench during disassembly, which is troublesome and affects the disassembly and cleaning efficiency of the point gum valve.

[0005] Therefore, it is necessary to provide a new technical scheme to overcome the above-mentioned defects. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a point gum valve which can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the purpose of the utility model, the following technical solutions are adopted:

[0008] A point gum valve, comprising: an upper valve body and a lower valve body; a point gum needle head fixedly installed at the bottom of the lower valve body; and a disassembly and assembly assembly for quick disassembly and assembly between the upper valve body and the lower valve body;

[0009] The dismounting assembly comprises: first connecting plates fixedly installed on both sides of the lower valve body; limiting grooves opened at both ends of the first connecting plates; second connecting plates fixedly installed on both sides of the upper valve body; cavities opened in the second connecting plates; two limiting rods movably installed in the cavities, one end of the limiting rod corresponding to the adjacent limiting groove; extrusion blocks arranged on the other end of the limiting rod; and bolts fixedly installed on the extrusion blocks, the surface of the bolt being threadedly installed with the second connecting plate.

[0010] Further, the two ends of the cavity are fixedly installed with positioning rings, the middle part of the positioning ring movably penetrating the surface of the adjacent limiting rod, a connecting ring being fixedly installed on the limiting rod, a spring being sleeved on the limiting rod, one end of the spring being fixedly connected with the surface of the adjacent positioning ring, and the other end of the spring being fixedly connected with the surface of the adjacent connecting ring.

[0011] Further, the other end of the limiting rod is provided in a circular arc shape, the extrusion block is provided in a taper shape matched with the circular arc shape of the one end of the limiting rod, and the limiting rod is provided in an upper large and lower small structure.

[0012] Further, a tapered sleeve is fixedly installed at the opening of the upper end of the lower valve body, and a tapered groove matched with the tapered sleeve is opened at the opening of the lower end of the upper valve body.

[0013] Further, a sealing ring is sleeved on the surface of the tapered sleeve.

[0014] Compared with the prior art, the utility model has the advantages that when the glue dispensing valve is disassembled and cleaned, only the bolts on both sides of the upper valve body need to be screwed through the dismounting assembly, so that the upper valve body and the lower valve body can be quickly installed, the operation is more simple and convenient, and after the upper valve body and the lower valve body are connected, the tapered sleeve on the lower valve body is tightly matched with the tapered groove on the upper valve body, so that the sealing effect after connection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the utility model, constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute limitations to the utility model.

[0016] Figure 1 It is a left view schematic view of the utility model;

[0017] Figure 2 It is a front view schematic view of the utility model;

[0018] Figure 3 It is a Figure 2 It is an enlarged schematic view of structure in A of the utility model;

[0019] Figure 4 It is the partial structure schematic view of the lower valve body, the conical sleeve and the sealing ring of the utility model;

[0020] Figure 5 It is the partial structure schematic view of the upper valve body and the conical groove of the utility model;

[0021] Figure 6 It is the front view sectional view schematic view of the utility model.

[0022] In the drawing: 1, upper valve body;2, lower valve body;3, glue dispensing needle;4, dismounting assembly;401, first connecting plate;4011, limiting groove;402, second connecting plate;4021, cavity;403, limiting rod;404, extrusion block;405, bolt;406, positioning ring;407, connecting ring;408, spring;5, conical sleeve;501, sealing ring;6, conical groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the following will be combined with the technical scheme in the utility model embodiment to make clear and complete description, obviously, the described embodiment is part of the utility model, not all.

[0024] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model. When the assembly is referred to as "fixed to" another assembly, it can be directly on the other assembly or there can be a middle assembly. When a component is considered "connected" to another component, it can be directly connected to another component or there can be a middle component. When a component is considered "set on" another component, it can be directly set on another component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this paper are only for illustrative purposes.

[0025] As Figures 1 to 6 shown, the utility model discloses a glue dispensing valve, comprising: upper valve body 1 and lower valve body 2;Fixedly installed at the bottom of lower valve body 2 glue dispensing needle 3;And for the quick dismounting of upper valve body 1 and lower valve body 2 dismounting assembly 4;

[0026] The assembly 4 includes: a first connecting plate 401 fixedly installed on both sides of the lower valve body 2; a limiting groove 4011 opened at both ends of the first connecting plate 401; a second connecting plate 402 fixedly installed on both sides of the upper valve body 1; a cavity 4021 opened in the second connecting plate 402; two limiting rods 403 movably installed inside the cavity 4021, with one end of the limiting rod 403 corresponding to the adjacent limiting groove 4011; a pressing block 404 erected on the other end of the limiting rod 403; and bolts 405 fixedly installed on the pressing block 404, with the surface of the bolts 405 threadedly installed with the second connecting plate 402.

[0027] When assembling the cleaned dispensing valve, rotating the bolt 405 moves it into the cavity 4021, causing the compression block 404 fixed at the bottom of the bolt 405 to compress and push the two symmetrical limit rods 403 to move in opposite directions simultaneously. This allows one end of the limit rod 403 to be inserted into the corresponding limit groove 4011, thus locking the upper valve body 1 and the lower valve body 2 together. This completes the quick installation of the upper valve body 1 and the lower valve body 2, which is much simpler and more convenient than the existing method of installing multiple bolts with tools.

[0028] Positioning rings 406 are fixedly installed at both ends of the cavity 4021, and the middle part of the positioning rings 406 moves through the surface of the adjacent limiting rods 403. A connecting ring 407 is fixedly installed on the limiting rods 403, and a spring 408 is fitted on the limiting rods 403. One end of the spring 408 is fixedly connected to the surface of the adjacent positioning rings 406, and the other end of the spring 408 is fixedly connected to the surface of the adjacent connecting rings 407.

[0029] When disassembling and cleaning the dispensing valve, rotate the bolt 405 and move the pressing block 404 at the bottom of the bolt 405 upward. When one end of the limiting rod 403 is released from pressing the pressing block 404, the spring 408 is elastically reset after being subjected to force, pushing the connecting ring 407 to move, so that one end of the limiting rod 403 is released from insertion with the adjacent limiting groove 4011, which facilitates the disassembly between the upper valve body 1 and the lower valve body 2.

[0030] It should be noted that the other end of the limiting rod 403 is designed as an arc, and the pressing block 404 is designed as a cone that matches the arc shape of one end of the limiting rod 403. The limiting rod 403 has a structure that is larger at the top and smaller at the bottom. With the arc shape of one end of the limiting rod 403 and the cone-shaped pressing block 404, the contact area between the two is reduced, friction is reduced, and it is easier for the pressing block 404 to press the two symmetrical limiting rods 403 to move.

[0031] Considering that this plug-in connection method may affect the sealing of the docking position, a conical sleeve 5 is fixedly installed at the opening at the upper end of the lower valve body 2; a conical groove 6 that mates with the conical sleeve 5 is provided at the opening at the lower end of the upper valve body 1; when the upper valve body 1 and the lower valve body 2 are docked, the conical outer wall of the conical sleeve 5 fits against the conical inner wall of the conical groove 6, which can improve the sealing effect.

[0032] It should be added that the surface of the conical sleeve 5 is fitted with a sealing ring 501; when the conical groove 6 at the bottom of the upper valve body 1 is installed on the conical sleeve 5 at the top of the lower valve body 2, the sealing ring 501 is deformed by the compression between the upper valve body 1 and the lower valve body 2, so that the sealing ring 501 can fit tightly against the gap between the lower valve body 2 and the upper valve body 1, further improving the sealing performance.

[0033] Working principle: After the dispensing valve has been used, when it needs to be disassembled and cleaned, rotating the bolt 405 causes the bottom-fixed extrusion block 404 to move upward. At this time, the side wall of the bolt 405 releases the pressure on the limiting rod 403. The spring 408 on the limiting rod 403 elastically returns to its original position after being stressed, pushing the connecting ring 407 to move. This causes one end of the limiting rod 403 to disengage from the adjacent limiting groove 4011, allowing for the disassembly of the upper valve body 1 and the lower valve body 2. When installing, first, the sealing ring... 501 is fitted onto the conical sleeve 5, and then the conical groove 6 at the bottom of the upper valve body 1 is installed on the conical sleeve 5 at the top of the lower valve body 2 to align the upper valve body 1 and the lower valve body 2. Then, the bolt 405 is rotated and moved into the cavity 4021, causing the pressing block 404 fixed at the bottom of the bolt 405 to press and push the two symmetrical limit rods 403 to move in opposite directions at the same time, so that one end of the limit rod 403 is inserted into the corresponding limit groove 4011, thus completing the locking between the upper valve body 1 and the lower valve body 2, thereby completing the quick installation between the upper valve body 1 and the lower valve body 2.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A dispensing valve, characterized in that, include: Upper valve body and lower valve body; A dispensing needle is fixedly installed at the bottom of the lower valve body; And disassembly and assembly components for quick assembly and disassembly between the upper and lower valve bodies; The assembly / disassembly assembly includes: a first connecting plate fixedly installed on both sides of the lower valve body; limiting grooves formed at both ends of the first connecting plate; a second connecting plate fixedly installed on both sides of the upper valve body; a cavity formed in the second connecting plate; two limiting rods movably installed inside the cavity, with one end of the limiting rod corresponding to the adjacent limiting groove; an extrusion block erected at the other end of the limiting rod; and bolts fixedly installed on the extrusion block, with the surface of the bolts threaded onto the second connecting plate.

2. The dispensing valve as described in claim 1, characterized in that, Positioning rings are fixedly installed at both ends of the cavity, and the middle part of the positioning rings movably passes through the surface of the adjacent limiting rods. A connecting ring is fixedly installed on the limiting rods, and a spring is fitted on the limiting rods. One end of the spring is fixedly connected to the surface of the adjacent positioning ring, and the other end of the spring is fixedly connected to the surface of the adjacent connecting ring.

3. The dispensing valve as described in claim 1, characterized in that, The other end of the limiting rod is set in an arc shape, and the extrusion block is set in a cone shape that matches the arc shape of one end of the limiting rod, and the limiting rod has a structure that is larger at the top and smaller at the bottom.

4. A dispensing valve as described in claim 1, characterized in that, A conical sleeve is fixedly installed at the opening at the upper end of the lower valve body; a conical groove that mates with the conical sleeve is provided at the opening at the lower end of the upper valve body.

5. A dispensing valve as described in claim 4, characterized in that, The surface of the conical sleeve is fitted with a sealing ring.

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