CN113510053A

CN113510053A - Closure metering valve

Info

Publication number: CN113510053A
Application number: CN202010523329.1A
Authority: CN
Inventors: 林平华; 滕中美; 黄文涛
Original assignee: Guangdong Foster Screw Valve Co ltd
Current assignee: Guangdong Foster Screw Valve Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-10-19

Abstract

The invention discloses a flow-stopping metering valve which comprises a first air cylinder and a second air cylinder, wherein an intermediate seat is fixedly arranged between the first air cylinder and the second air cylinder, an elastic rubber pipe is fixedly arranged inside the intermediate seat, a first push rod and a second push rod respectively penetrate through the insides of the first air cylinder and the second air cylinder, the number of the intermediate seats is two, and the elastic rubber pipe is positioned between the two intermediate seats. According to the invention, the two push rods are respectively arranged on the first cylinder and the second cylinder, when the cylinders drive the two push rods to move back and forth, the clamping and loosening processes of the middle elastic rubber tube are generated, the clamping and loosening time is controlled by the electromagnetic valve, the accurate metering of the fluid passing through the elastic rubber tube can be realized, and the very accurate dispensing effect is achieved.

Description

Closure metering valve

Technical Field

The invention relates to the technical field of metering valves, in particular to a closure metering valve.

Background

In many occasions where glue is applied, the quantity of the glue needs to be accurately measured, the process is called glue dispensing, the glue dispensing needs to use metering equipment such as pumps and valves, the single-component glue is well realized, but for many A, B components of glue, two sets of pumps and valve equipment are needed to be used for conveying and then are mixed through a mixing pipe, the pressure exists in the glue after the glue is conveyed to the mixing pipe, the glue cannot be collected in the glue dispensing process, rotary valves similar to switches are arranged on the market, a valve body with a metal or ceramic core as a structure is mainly arranged in the rotary valves, the glue is very many in types, and a certain part of the glue contains high-abrasion filling materials, so that abrasion is caused to products of the rotary valves, the replacement cost is high, and the convenience is poor.

Disclosure of Invention

The invention aims to provide a closure metering valve which has the advantage of accurate glue dispensing and solves the problem that glue cannot be collected in the glue dispensing process because pressure exists in a glue mixing pipe after the glue is conveyed to the mixing pipe.

In order to achieve the purpose, the invention provides the following technical scheme: the closure metering valve comprises a first cylinder and a second cylinder, an intermediate seat is fixedly mounted between the first cylinder and the second cylinder, an elastic rubber tube is fixedly mounted inside the intermediate seat, and a first push rod and a second push rod are respectively arranged inside the first cylinder and the second cylinder in a penetrating mode.

Preferably, the number of the middle seats is two, and the elastic rubber tube is positioned between the two middle seats.

Preferably, one end of the first push rod and one end of the second push rod are in contact with the surface of the elastic rubber tube.

Preferably, the elastic rubber tube is vertically arranged, and the glue inside the elastic rubber tube flows from top to bottom.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the two push rods are respectively arranged on the first cylinder and the second cylinder, when the cylinders drive the two push rods to move back and forth, the clamping and loosening processes of the middle elastic rubber tube are generated, the clamping and loosening time is controlled by the electromagnetic valve, the accurate metering of the fluid passing through the elastic rubber tube can be realized, and the very accurate dispensing effect is achieved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a first cylinder; 2. a second cylinder; 3. a middle seat; 4. an elastic rubber tube; 5. a first push rod; 6. a second push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, the intercepting metering valve includes a first cylinder 1 and a second cylinder 2, a middle seat 3 is fixedly installed between the first cylinder 1 and the second cylinder 2, the number of the middle seats 3 is two, an elastic rubber tube 4 is located between the two middle seats 3, an elastic rubber tube 4 is fixedly installed inside the middle seat 3, the elastic rubber tube 4 is vertically arranged, the internal glue flows from top to bottom, a first push rod 5 and a second push rod 6 are respectively arranged inside the first cylinder 1 and the second cylinder 2 in a penetrating manner, one end of the first push rod 5 and one end of the second push rod 6 are in contact with the surface of the elastic rubber tube 4, the two push rods are respectively installed on the first cylinder 1 and the second cylinder 2, when the two push rods are driven by the cylinders to move back and forth, the clamping and loosening processes of the middle elastic rubber tube 4 are generated, the clamping and loosening time is controlled by an electromagnetic valve, the accurate metering of the fluid passing through the elastic rubber tube 4 can be realized, the very accurate dispensing effect is achieved, the wearing parts of the whole product are the middle elastic rubber parts, the relative cost is very low, and the replacement is very convenient.

All the parts in the invention are universal standard parts or parts known by technicians in the field, the structure and the principle of the parts are known by technicians in the field through technical manuals or conventional experimental methods, meanwhile, standard parts used in the application document can be purchased from the market, all the parts in the application document can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of all the parts adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, machines, parts and equipment adopt conventional models in the prior art, and specific description is not given.

The principle of the shutoff valve is as follows: the middle seat 3 is connected to two first cylinders 1 of short stroke and second cylinder 2, middle seat 3 need part two blocks, the installation of middle elastic rubber tube 4 is considered because of needs, two push rods are adorned respectively to first cylinder 1 and second cylinder 2, drive two push rods when the cylinder and realize the back-and-forth movement, this has just produced the tight process of pressing from both sides and unclamping to middle elastic rubber tube 4, come control through the solenoid valve to press from both sides tight and unclamp the time, just can realize the accurate measurement of the fluid through in the elastic rubber tube 4, and reach very accurate point glue effect, the wearing parts of whole product are middle elastic rubber spare, relative cost can be very low, and it is also very convenient to change.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Closure metering valve, including first cylinder (1) and second cylinder (2), its characterized in that: fixed mounting has middle seat (3) between first cylinder (1) and second cylinder (2), the inside fixed mounting of middle seat (3) has elasticity rubber tube (4), the inside of first cylinder (1) and second cylinder (2) is run through respectively and is provided with first push rod (5) and second push rod (6).

2. The shut-off metering valve of claim 1, wherein: the number of the middle seats (3) is two, and the elastic rubber tube (4) is positioned between the two middle seats (3).

3. The shut-off metering valve of claim 1, wherein: one ends of the first push rod (5) and the second push rod (6) are in contact with the surface of the elastic rubber tube (4).

4. The shut-off metering valve of claim 1, wherein: the elastic rubber tube (4) is vertically arranged, and the glue inside the elastic rubber tube flows from top to bottom.