Novel hot melt adhesive supply system

Abstract

A novel hot melt adhesive supply system comprises an adhesive cylinder, a first piston cylinder, a second piston cylinder and an adhesive gun, an adhesive cavity of the first piston cylinder is connected with the adhesive cylinder, an adhesive cavity of the second piston cylinder is connected with an adhesive cavity of the first piston cylinder, and the adhesive gun is connected with an adhesive cavity of the second piston cylinder; the first piston cylinder is configured to suck glue from the glue cylinder into a glue cavity of the first piston cylinder and pump the glue from the glue cavity of the first piston cylinder into a glue cavity of the second piston cylinder; and the second piston cylinder is configured to inject glue into the glue gun from the glue cavity of the second piston cylinder. According to the scheme, glue in the glue cylinder is sucked into the glue cavity of the first piston cylinder through the first piston cylinder, then the glue is pressed into the glue cavity of the second piston cylinder, the glue cavity of the second piston cylinder is connected with the glue gun, when glue spraying is needed, the second piston cylinder presses the glue into the glue gun, and when the glue in the second piston cylinder is almost used up, the glue gun is closed. The first piston cylinder presses glue into the glue cavity of the second piston cylinder in time, meanwhile, glue needed by the glue gun is provided, the first piston cylinder and the second piston cylinder work alternately, and the constant-pressure glue discharging function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of glue supply system, especially a novel hot melt glue supply system. BACKGROUND

[0002] Hot melt glue is odorless, non-toxic, and does not pollute the environment, and is widely used as an adhesive on enterprise production lines. Hot melt glue is more superior and more practical than white latex, has a high cost performance, is resistant to high temperature and low temperature, and can avoid shrinkage and mildew of white latex, slow drying, increase the hardness of products, not easy to deform and fold, has strong adhesion, soft folding, no odor, and no delamination after use due to low temperature. The conventional hot melt glue supply system is composed of a glue machine, a gear pump, a motor and a glue pipe. The gear pump must be continuously operated to maintain the glue pressure. When the glue gun does not discharge glue, the pressure can only be released by backflow, otherwise the glue pump will be blocked. When the glue gun is opened, the glue pressure is released instantly, which may cause more glue to be discharged at the front and less glue to be discharged at the back. In addition, there is a meter-long glue pipe between the glue pump and the glue gun, which makes it difficult to achieve uniform glue discharge of the glue gun.

[0003] Therefore, in view of the deficiencies of the prior art, it is necessary to design a novel hot melt glue supply system to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a novel hot melt glue supply system.

[0005] In order to achieve the above-mentioned purposes and other related purposes, the technical scheme provided by the utility model is as follows: a novel hot melt glue supply system, comprising a glue cylinder, a first piston cylinder, a second piston cylinder and a glue gun, the glue cavity of the first piston cylinder is connected with the glue cylinder, the glue cavity of the second piston cylinder is connected with the glue cavity of the first piston cylinder, and the glue gun is connected with the glue cavity of the second piston cylinder; the first piston cylinder is configured to suck glue from the glue cylinder into its own glue cavity and to discharge glue from its own glue cavity into the glue cavity of the second piston cylinder; and the second piston cylinder is configured to discharge glue from its own glue cavity into the glue gun.

[0006] The preferred technical scheme is that the first piston cylinder and the second piston cylinder are the same in structure and are each composed of a cylinder body, a piston rod, a glue cavity piston ring and an air cavity piston ring, a partition plate is arranged at the middle position of the cylinder body, the partition plate divides the cylinder body into the glue cavity and the air cavity, a through hole is arranged at the center of the partition plate, the piston rod is sealingly inserted into the through hole in a reciprocating manner, the glue cavity piston ring is fixed to one end of the piston rod and sealingly connected with the inner wall of the glue cavity, and the air cavity piston ring is fixed to the other end of the piston rod and sealingly connected with the inner wall of the air cavity.

[0007] The preferred technical scheme is that the cylinder is provided with a first air hole and a second air hole communicating with the air cavity, and the first air hole and the second air hole are distributed on two sides of the air cavity piston ring.

[0008] The preferred technical scheme is that the air cavity is provided with a first limiting ring and a second limiting ring, the first limiting ring is arranged between the first air hole and the air cavity piston ring, and the second limiting ring is arranged between the second air hole and the air cavity piston ring.

[0009] The preferred technical scheme is that a first one-way valve is arranged on the connecting pipeline between the glue cavity of the first piston cylinder and the glue cylinder, the first one-way valve is configured to allow glue to flow from the glue cylinder to the glue cavity of the first piston cylinder, a second one-way valve is arranged on the connecting pipeline between the glue cavity of the second piston cylinder and the glue cavity of the first piston cylinder, and the second one-way valve is configured to allow glue to flow from the glue cavity of the first piston cylinder to the glue cavity of the second piston cylinder.

[0010] The preferred technical scheme is that the glue output of the first piston cylinder is greater than the glue output of the glue gun, and the cylinder pressure of the first piston cylinder is greater than the cylinder pressure of the second piston cylinder.

[0011] Due to the above technical scheme, the present application has the following beneficial effects:

[0012] The present application provides a novel hot melt adhesive glue supply system, which absorbs glue in the glue cylinder into the glue cavity of the first piston cylinder, then press the glue into the glue cavity of the second piston cylinder, the glue cavity of the second piston cylinder is connected with the glue gun, when glue is needed, the glue in the glue cavity of the second piston cylinder is pressed into the glue gun, when the glue in the second piston cylinder is almost used up, the glue in the glue cavity of the first piston cylinder is pressed into the glue cavity of the second piston cylinder in time, and the glue needed by the glue gun is provided, the first piston cylinder and the second piston cylinder work alternately and reciprocally, and the constant pressure glue output function is realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The present application relates to a hot melt adhesive glue supply system.

[0014] Fig. 2 The present application relates to a piston cylinder. DETAILED DESCRIPTION

[0015] The present application has other advantages and effects which can be easily understood by those skilled in the art from the content disclosed in the present application.

[0016] Please refer to Figs. 1-2It should be noted that, in the description of the utility model, it is necessary to point out that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance. The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0017] In the description of the utility model, it is also necessary to point out that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment

[0018] As Figs. 1-2 shown, according to one general technical concept of the utility model, a novel hot melt adhesive glue supply system is provided, which comprises a glue tank 1, a first piston cylinder 2, a second piston cylinder 3 and a glue gun 4. The glue cavity of the first piston cylinder 2 is connected with the glue tank 1, the glue cavity of the second piston cylinder 3 is connected with the glue cavity of the first piston cylinder 2, and the glue gun 4 is connected with the glue cavity of the second piston cylinder 3. The first piston cylinder 2 is configured to suck glue from the glue tank 1 into its own glue cavity, and to punch the glue from its own glue cavity into the glue cavity of the second piston cylinder 3. The second piston cylinder 3 is configured to punch the glue from its own glue cavity into the glue gun 4.

[0019] As Figs. 1-2As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity.

[0020] As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity. Figs. 1-2 As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity.

[0021] Figs. 1-2 As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity.

[0022] As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity. Figs. 1-2 As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity.

[0023] Figs. 1-2 As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity.

[0024] As shown in the utility model of an example of an embodiment, the first piston cylinder 2 and the second piston cylinder 3 are the same structure, both are composed of cylinder body 100, piston rod 101, glue cavity piston ring 102 and air cavity piston ring 103, the middle position of cylinder body 100 is equipped with baffle 104, baffle 104 divides cylinder body 100 into glue cavity and air cavity, the center of baffle 104 is equipped with through hole, piston rod 101 can reciprocatingly and sealingly insert in the through hole, glue cavity piston ring 102 is fixedly arranged at one end of piston rod 101 and sealingly connected with the inner wall of glue cavity, air cavity piston ring 103 is fixedly arranged at the other end of piston rod 101 and sealingly connected with the inner wall of air cavity.

[0025] Therefore, the utility model has the following advantages: ​​

[0026] The utility model provides a novel hot melt adhesive glue supply system, through first piston jar is with glue in glue jar glue water is inhaled to self glue cavity, then again glue water is pressed into the glue cavity of second piston jar, the glue cavity of second piston jar is connected glue gun, needs to spray glue, second piston jar presses into glue gun in the glue cavity of glue water, when the glue water in second piston jar is almost used up, first piston jar in time presses into the glue cavity of second piston jar in the glue water in self glue cavity, simultaneously provides the glue water required by glue gun, first piston jar and second piston jar alternate reciprocating work, realizes constant pressure glue function.

[0027] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed by the present application should be covered by the claims of the present application.

Claims

1. A new hot melt adhesive supply system characterized by: The glue tank, the first piston cylinder, the second piston cylinder and the glue gun are connected, the glue cavity of the first piston cylinder is connected with the glue tank, the glue cavity of the second piston cylinder is connected with the glue cavity of the first piston cylinder, and the glue gun is connected with the glue cavity of the second piston cylinder; the first piston cylinder is configured to suck glue from the glue tank into its own glue cavity and to inject glue from its own glue cavity into the glue cavity of the second piston cylinder; and the second piston cylinder is configured to inject glue from its own glue cavity into the glue gun.

2. The new hot melt adhesive glue supply system according to claim 1, characterized in that: The first piston cylinder and the second piston cylinder are structurally identical and each comprise a cylinder body, a piston rod, a glue cavity piston ring and an air cavity piston ring, a partition plate is arranged in the middle of the cylinder body, the partition plate divides the cylinder body into the glue cavity and the air cavity, a through hole is arranged at the center of the partition plate, the piston rod is sealingly inserted into the through hole and can reciprocate, the glue cavity piston ring is fixed to one end of the piston rod and sealingly connected with the inner wall of the glue cavity, and the air cavity piston ring is fixed to the other end of the piston rod and sealingly connected with the inner wall of the air cavity.

3. The new hot melt adhesive supply system according to claim 2, characterized in that: The cylinder body is provided with a first air hole and a second air hole communicating with the air cavity, and the first air hole and the second air hole are arranged on the two sides of the air cavity piston ring; the first air hole and the second air hole are respectively connected with an external gas generating device through pipelines.

4. The novel hot melt adhesive supplying system according to claim 3, characterized in that: The first limiting ring is arranged between the first air hole and the air cavity piston ring, and the second limiting ring is arranged between the second air hole and the air cavity piston ring.

5. The new hot melt adhesive supply system according to claim 1, characterized in that: A first one-way valve is arranged on the connecting pipeline between the glue cavity of the first piston cylinder and the glue tank, the first one-way valve is configured to allow glue to flow from the glue tank to the glue cavity of the first piston cylinder; a second one-way valve is arranged on the connecting pipeline between the glue cavity of the second piston cylinder and the glue cavity of the first piston cylinder, and the second one-way valve is configured to allow glue to flow from the glue cavity of the first piston cylinder to the glue cavity of the second piston cylinder.

6. The new hot melt adhesive supply system according to claim 1, characterized in that: The glue output of the first piston cylinder is greater than the glue output of the glue gun, and the cylinder pressure of the first piston cylinder is greater than the cylinder pressure of the second piston cylinder.

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