Piston pump hot melt glue machine
By setting up a return valve outside the base of the piston pump hot melt adhesive machine, the problem of increasing the base volume and difficulty in maintenance is solved, the reuse of glue reflow and convenient maintenance is realized, and the base size is reduced.
Patent Information
- Application Number
- CN202323513139.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The return valve of the existing piston pump hot melt adhesive machine is arranged in the base, resulting in an increase in the volume of the base and is difficult to install and maintain.
A piston pump hot melt adhesive machine including a rubber bucket and a base is designed. The rubber outlet hole and return hole are provided in the rubber outlet, the base is equipped with an output port, a rubber outlet channel and a return channel, and a filter is provided in the rubber outlet channel. The reflow channel is in communication with the rubber outlet channel. The return valve is located outside the base and communicates with the return hole through the vertical channel, which facilitates the installation and maintenance of the return valve.
Reuse of excess glue is realized, installation and maintenance of the return valve is simplified, the base size is reduced, and the convenience of use is improved.
Smart Images
Figure CN222174671U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot melt adhesive machines, in particular to a piston pump hot melt adhesive machine. Background Art
[0002] The piston pump hot melt glue machine relies on the reciprocating motion of the piston to make the working volume of the pump chamber change periodically to achieve the suction and discharge of hot melt glue. The piston pump hot melt glue machine melts the glue through the melting cylinder and outputs it. For example, the patent with announcement number CN209393472U discloses a piston pump hot melt glue machine, in which the glue in the melting cylinder is discharged through the base, and the excess glue flows back into the melting cylinder. Because the reflux valve is set in the base, the volume of the base is increased, and it is not easy to install and maintain. Utility Model Content
[0003] In order to solve the problems of the prior art, the utility model provides a piston pump hot melt adhesive machine which is convenient for installation and maintenance of a reflux valve, has smooth adhesive discharge and reduces the volume of a base.
[0004] The specific technical scheme is as follows: A piston pump hot melt glue machine includes a glue barrel and a base, the glue barrel is provided with a glue outlet hole and a reflux hole, the base is provided with an output port, the base is provided with a glue outlet channel and a reflux channel, the glue outlet channel is connected with the glue outlet hole and the output port respectively, the glue outlet channel is arranged on a horizontal plane, a filter is arranged in the glue outlet channel, the filter is at least partially exposed outside the base, one end of the reflux channel is connected with the glue outlet channel, and the other end is connected with the valve hole of the base, the valve hole is arranged parallel to the glue outlet hole, the valve hole and the reflux hole are connected through a vertical channel, a reflux valve is arranged in the valve hole, and the reflux valve is at least partially exposed outside the base.
[0005] In some embodiments, the filter is arranged in parallel with the reflux valve, and the output port is located between the filter and the reflux valve.
[0006] In some embodiments, the reflux channel is arranged in parallel with the glue outlet channel and is connected through a connecting channel, and the connecting channel is arranged in parallel with the output port.
[0007] In some embodiments, the connecting channel is connected to the end of the glue outlet channel, and there are at least two output ports.
[0008] In some embodiments, a longitudinal channel is provided above the filter, and the longitudinal channel is connected to the glue outlet hole.
[0009] In some embodiments, the filter and the backflow valve are inserted on the rear side of the base.
[0010] The technical effect of the utility model: the piston pump hot melt glue machine of the utility model can make the excess glue return to the glue barrel for reuse, the reflux valve is easy to install and maintain, the use is more convenient, and the base size is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] 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 creative work.
[0012] Figure 1 It is a schematic diagram of a piston pump hot melt adhesive machine according to an embodiment of the utility model.
[0013] Figure 2 It is a schematic diagram of a glue barrel and a base according to an embodiment of the utility model.
[0014] Figure 3 It is a schematic diagram of a base according to an embodiment of the utility model.
[0015] Figure 4 It is a schematic diagram of the glue outlet channel and the return channel of an embodiment of the utility model.
[0016] Figure 5 It is a schematic diagram of a reflux valve according to an embodiment of the present utility model. DETAILED DESCRIPTION
[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.
[0021] like Figures 1 to 5 As shown, a piston pump hot melt adhesive machine 100 of this embodiment includes a glue barrel 1 and a base 2. The glue barrel 1 is provided with a glue outlet hole 11 and a reflux hole 12. The base 2 is provided with an output port 21. Glue flows into the base 2 through the bottom glue outlet hole 11 and is output through the output port 21. The output port 21 is provided with a glue outlet head 211. The base 2 is provided with a glue outlet channel 22 and a reflux channel 23. The glue outlet channel 22 is connected to the glue outlet hole 11 and the output port 21 respectively. The glue outlet channel 22 is arranged on a horizontal plane. A filter 3 is arranged in the glue outlet channel 22. The filter 3 is arranged in the mounting hole 25. At least part of the filter 3 is exposed outside the base 2, which is convenient for the installation and maintenance of the filter 3. One end of the reflux channel 23 is connected to the glue outlet channel 22, and the other end is connected to the valve hole 24 of the base 2. The valve hole 24 is arranged parallel to the glue outlet hole 11. The valve hole 24 is connected to the reflux hole 12 through a vertical channel 26. A reflux valve 4 is provided in the valve hole 24. The reflux valve 4 is at least partially exposed outside the base 3. In the above technical solution, the glue in the glue barrel 1 enters the base 2 through the glue outlet hole 11, is filtered by the filter 3, and then enters the glue outlet channel 22, and is output through the output port 21 respectively. The glue that is not output enters the reflux valve through the reflux channel 23, and returns to the glue barrel 1 through the vertical channel 26 of the reflux valve for recycling. The reflux valve is arranged outside the base, which can facilitate the installation and maintenance of the reflux valve. Through the above technical solution, the excess glue can be returned to the glue barrel for reuse. In addition, the reflux valve is easy to install and maintain, and is more convenient to use.
[0022] In this embodiment, the filter 3 is arranged in parallel with the reflux valve 4, and the output port 21 is located between the filter 3 and the reflux valve 4, so that the glue can flow through the filter, the output port and the reflux valve in sequence, shortening the path of the glue outlet channel 22. The reflux channel 23 is arranged in parallel with the glue outlet channel 22 and is connected through the connecting channel 27. The connecting channel 27 is arranged in parallel with the output port 21, so that the output glue and the reflux glue flow in opposite directions, accelerating the glue reflux. The connecting channel 27 is connected to the end of the glue outlet channel 22, and there are at least two output ports 21, so as to shorten the path of the reflux glue, and multiple glues are output synchronously, thereby improving the glue outlet efficiency. A longitudinal channel 31 is provided above the filter 3, and the longitudinal channel 31 is connected to the glue outlet hole 11, so that the glue above can flow vertically downward. The filter 3 and the reflux valve 4 are inserted on the rear side 28 of the base 2, so as to facilitate the installation and disassembly of the filter and the reflux valve.
[0023] A piston pump hot melt adhesive machine in this embodiment can return excess glue into the glue barrel for reuse. The reflux valve is easy to install and maintain, more convenient to use, and effectively reduces the size of the base.
[0024] The above is an explanation of a piston pump hot melt adhesive machine of the utility model, but the utility model is not limited to the above specific implementation, and various deformations or changes can be made as long as they do not depart from the scope of the claims. The utility model includes various deformations and changes within the scope of the claims.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A piston pump hot melt adhesive machine, comprising a glue barrel and a base, wherein the glue barrel is provided with a glue outlet and a return hole, and the base is provided with an output port. It is characterized in that A glue outlet channel and a reflux channel are provided in the base, the glue outlet channel is connected with the glue outlet hole and the output port respectively, the glue outlet channel is arranged on a horizontal plane, a filter is provided in the glue outlet channel, and the filter is at least partially exposed outside the base, one end of the reflux channel is connected with the glue outlet channel, and the other end is connected with the valve hole of the base, the valve hole is arranged parallel to the glue outlet hole, the valve hole is connected with the reflux hole through a vertical channel, a reflux valve is provided in the valve hole, and the reflux valve is at least partially exposed outside the base.
2. The piston pump hot melt adhesive machine according to claim 1, It is characterized in that The filter is arranged in parallel with the reflux valve, and the output port is located between the filter and the reflux valve.
3. The piston pump hot melt adhesive machine according to claim 2, It is characterized in that The reflux channel is arranged in parallel with the glue outlet channel and is communicated with the glue outlet via a connecting channel, and the connecting channel is arranged in parallel with the outlet.
4. The piston pump hot melt adhesive machine according to claim 3, It is characterized in that The connecting channel is connected to the end of the glue outlet channel, and there are at least two outlets.
5. The piston pump hot melt adhesive machine according to claim 4, It is characterized in that A longitudinal channel is arranged above the filter, and the longitudinal channel is communicated with the glue outlet hole.
6. The piston pump hot melt adhesive machine according to claim 5, It is characterized in that The filter and the reflux valve are inserted on the rear side of the base.