A new hot melt adhesive supply system

Abstract

A new type of hot melt adhesive supply system includes a glue cylinder, a first piston cylinder, a second piston cylinder and a glue gun. The glue chamber of the first piston cylinder is connected to the glue cylinder, the glue chamber of the second piston cylinder is connected to the glue chamber of the first piston cylinder, and the glue gun is connected to the glue chamber of the second piston cylinder. The first piston cylinder is configured to suck glue from the glue cylinder into its own glue chamber, and to inject glue from its own glue chamber into the glue chamber of the second piston cylinder. The second piston cylinder is configured to inject glue from its own glue chamber into the glue gun. In this scheme, the glue in the glue cylinder is sucked into its own glue chamber by the first piston cylinder, and then the glue is pressed into the glue chamber of the second piston cylinder. The glue chamber of the second piston cylinder is connected to the glue gun. When glue spraying is required, the second piston cylinder presses the glue into the glue gun. When the glue in the second piston cylinder is almost used up, the first piston cylinder promptly presses the glue into the glue chamber of the second piston cylinder and provides the glue required by the glue gun. The first piston cylinder and the second piston cylinder work alternately to achieve a constant pressure glue discharge function.

Description

Technical Field

[0001] The invention relates to the technical field of glue supply systems, in particular to a novel hot melt adhesive supply system. Background Art

[0002] Hot melt adhesive is odorless, non-toxic, and does not pollute the environment. It is widely used as an adhesive in corporate production lines. Hot melt adhesive is superior to white latex, more practical, cost-effective, and resistant to high and low temperatures. Using this product can prevent white latex from shrinking, getting moldy, and drying slowly; it can increase the hardness of the product, is not easy to deform and bend, has strong viscosity, is soft to fold, has no odor, and will not debond due to low temperature after use. The conventional hot melt adhesive supply system consists of a glue machine, a gear pump, a motor, and a hose. There is a gear pump, which must be running continuously to maintain the glue pressure. When the glue gun does not discharge glue, it can only be relieved by reflux, otherwise the glue pump will be suffocated. When the glue gun is opened, the glue pressure is released instantly, which will cause more glue to be discharged from the head and less glue to be discharged from the back. In addition, since there is a several-meter-long hose between the glue pump and the glue gun, it is difficult to achieve uniform glue discharge from the glue gun.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to design a new hot melt adhesive supply system to solve the above problems. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention aims to provide a novel hot melt adhesive supply system.

[0005] To achieve the above-mentioned purpose and other related purposes, the technical solution provided by the present invention is: a new hot melt adhesive supply system, including a glue cylinder, a first piston cylinder, a second piston cylinder and a glue gun, the glue chamber of the first piston cylinder is connected to the glue cylinder, the glue chamber of the second piston cylinder is connected to the glue chamber of the first piston cylinder, and the glue gun is connected to the glue chamber of the second piston cylinder; the first piston cylinder is configured to suck glue from the glue cylinder into its own glue chamber, and to inject glue from its own glue chamber into the glue chamber of the second piston cylinder; the second piston cylinder is configured to inject glue from its own glue chamber into the glue gun.

[0006] The preferred technical solution is: the first piston cylinder and the second piston cylinder have the same structure, both of which are composed of a cylinder body, a piston rod, a rubber chamber piston ring and an air chamber piston ring. A partition is provided in the middle of the cylinder body, and the partition divides the cylinder body into the rubber chamber and the air chamber. A through hole is provided at the center of the partition, and the piston rod can be reciprocatingly sealed and inserted in the through hole. The rubber chamber piston ring is fixedly arranged at one end of the piston rod and is sealedly connected to the inner wall of the rubber chamber. The air chamber piston ring is fixedly arranged at the other end of the piston rod and is sealedly connected to the inner wall of the air chamber.

[0007] The preferred technical solution is: the cylinder body is provided with a first air hole and a second air hole connecting the air cavity, the first air hole and the second air hole are distributed on both sides of the air cavity piston ring; the first air hole and the second air hole are respectively connected to an external gas generating device through a pipeline.

[0008] The preferred technical solution is: a first limiting ring and a second limiting ring are provided in the air cavity, the first limiting ring is provided between the first air hole and the air cavity piston ring, and the second limiting ring is provided between the second air hole and the air cavity piston ring.

[0009] The preferred technical solution is: a first one-way valve is provided on the connecting pipeline between the glue chamber of the first piston cylinder and the glue cylinder, and the first one-way valve is configured to allow glue to flow from the glue cylinder to the glue chamber of the first piston cylinder; a second one-way valve is provided on the connecting pipeline between the glue chamber of the second piston cylinder and the glue chamber of the first piston cylinder, and the second one-way valve is configured to allow glue to flow from the glue chamber of the first piston cylinder to the glue chamber of the second piston cylinder.

[0010] The preferred technical solution is: 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 application of the above technical solution, the present invention has the following beneficial effects: The present invention proposes a novel hot melt adhesive supply system, which absorbs the glue in the glue cylinder into its own glue cavity through the first piston cylinder, and then presses the glue into the glue cavity of the second piston cylinder. The glue cavity of the second piston cylinder is connected to the glue gun. When glue spraying is required, the second piston cylinder presses the glue in the glue cavity into the glue gun. When the glue in the second piston cylinder is almost used up, the first piston cylinder promptly presses the glue in its own glue cavity into the glue cavity of the second piston cylinder and provides the glue required by the glue gun at the same time. The first piston cylinder and the second piston cylinder work alternately and reciprocatingly to realize the constant pressure glue discharge function. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic diagram of a hot melt adhesive supply system.

[0013] Figure 2 It is a schematic diagram of the piston cylinder involved in the present invention. DETAILED DESCRIPTION

[0014] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0015] See also Figure 1-Figure 2. It should be noted that in the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0017] like Figure 1 to Figure 2 As shown, according to an overall technical concept of the present invention, a new type of hot melt adhesive supply system is provided, including a glue cylinder 1, a first piston cylinder 2, a second piston cylinder 3 and a glue gun 4, the glue chamber of the first piston cylinder 2 is connected to the glue cylinder 1, the glue chamber of the second piston cylinder 3 is connected to the glue chamber of the first piston cylinder 2, and the glue gun 4 is connected to the glue chamber of the second piston cylinder 3; the first piston cylinder 2 is configured to suck glue from the glue cylinder 1 into its own glue chamber, and to inject glue from its own glue chamber into the glue chamber of the second piston cylinder 3; the second piston cylinder 3 is configured to inject glue from its own glue chamber into the glue gun 4.

[0018] like Figure 1 to Figure 2As shown, in an exemplary embodiment of the present invention, the first piston cylinder 2 and the second piston cylinder 3 have the same structure, and are both composed of a cylinder body 100, a piston rod 101, a rubber chamber piston ring 102 and an air chamber piston ring 103. A partition 104 is provided in the middle of the cylinder body 100, and the partition 104 divides the cylinder body 100 into a rubber chamber and an air chamber. A through hole is provided at the center of the partition 104, and the piston rod 101 can be reciprocatingly sealed and inserted in the through hole. The rubber chamber piston ring 102 is fixedly arranged at one end of the piston rod 101 and is sealedly connected to the inner wall of the rubber chamber, and the air chamber piston ring 103 is fixedly arranged at the other end of the piston rod 101 and is sealedly connected to the inner wall of the air chamber.

[0019] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, a first air hole 105 and a second air hole 106 connecting the air cavity are provided on the cylinder body 100, and the first air hole 105 and the second air hole 106 are distributed on both sides of the air cavity piston ring 103; the first air hole 105 and the second air hole 106 are respectively connected to an external gas generating device through a pipeline.

[0020] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, a first limiting ring 107 and a second limiting ring 108 are provided in the air cavity. The first limiting ring 107 is provided between the first air hole 105 and the air cavity piston ring 103, and the second limiting ring 108 is provided between the second air hole 106 and the air cavity piston ring 103.

[0021] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, a first one-way valve 5 is provided on the connecting pipeline between the glue chamber of the first piston cylinder 2 and the glue cylinder 1, and the first one-way valve 5 is configured to allow glue to flow from the glue cylinder 1 to the glue chamber of the first piston cylinder 2; a second one-way valve 6 is provided on the connecting pipeline between the glue chamber of the second piston cylinder 3 and the glue chamber of the first piston cylinder 2, and the second one-way valve 6 is configured to allow glue to flow from the glue chamber of the first piston cylinder 2 to the glue chamber of the second piston cylinder 3.

[0022] like Figure 1 to Figure 2 As shown, in an exemplary embodiment of the present invention, the glue output of the first piston cylinder 2 is greater than the glue output of the glue gun 4 , and the cylinder pressure of the first piston cylinder 2 is greater than the cylinder pressure of the second piston cylinder 3 .

[0023] It should be noted that, because the capacity of the glue chamber in the first piston cylinder 2 is greater than the glue output of the glue gun 4, and the cylinder pressure of the first piston cylinder 2 is greater than the cylinder pressure of the second piston cylinder 3, when the first piston cylinder 2 replenishes glue into the glue chamber of the second piston cylinder 3, it can not only fill the glue chamber of the second piston cylinder 3 with glue, but also supply the glue gun 4 for use, thus avoiding glue interruption in the middle.

[0024] Therefore, the present invention has the following advantages: The present invention proposes a novel hot melt adhesive supply system, which absorbs the glue in the glue cylinder into its own glue cavity through the first piston cylinder, and then presses the glue into the glue cavity of the second piston cylinder. The glue cavity of the second piston cylinder is connected to the glue gun. When glue spraying is required, the second piston cylinder presses the glue in the glue cavity into the glue gun. When the glue in the second piston cylinder is almost used up, the first piston cylinder promptly presses the glue in its own glue cavity into the glue cavity of the second piston cylinder and provides the glue required by the glue gun at the same time. The first piston cylinder and the second piston cylinder work alternately and reciprocatingly to realize the constant pressure glue discharge function.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A new hot melt adhesive supply system, characterized by: It includes a glue cylinder, a first piston cylinder, a second piston cylinder and a glue gun, wherein the glue cavity of the first piston cylinder is connected to the glue cylinder, the glue cavity of the second piston cylinder is connected to the glue cavity of the first piston cylinder, and the glue gun is connected to 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 inject glue from its own glue cavity into the glue cavity of the second piston cylinder; the second piston cylinder is configured to inject glue from its own glue cavity into the glue gun.

2. A new hot melt adhesive supply system according to claim 1, characterized in that: The first piston cylinder and the second piston cylinder have the same structure, and are both composed of a cylinder body, a piston rod, a rubber chamber piston ring and an air chamber piston ring. A partition is provided in the middle of the cylinder body, and the partition divides the cylinder body into the rubber chamber and the air chamber. A through hole is provided at the center of the partition, and the piston rod can be reciprocatingly sealed and inserted in the through hole. The rubber chamber piston ring is fixedly arranged at one end of the piston rod and is sealedly connected to the inner wall of the rubber chamber. The air chamber piston ring is fixedly arranged at the other end of the piston rod and is sealedly connected to the inner wall of the air chamber.

3. A new hot melt adhesive supply system according to claim 1, 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 distributed on both sides of the air cavity piston ring; the first air hole and the second air hole are respectively connected to an external gas generating device through a pipeline.

4. A new hot melt adhesive supply system according to claim 1, characterized in that: A first limiting ring and a second limiting ring are provided in the air cavity. The first limiting ring is provided between the first air hole and the air cavity piston ring, and the second limiting ring is provided between the second air hole and the air cavity piston ring.

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

6. A 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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