Lower diaphragm plate device and three-dimensional packaging machine

Abstract

The utility model discloses a lower diaphragm plate device and a three-dimensional packaging machine, and relates to the technical field of packaging machines. The lower diaphragm plate device comprises a lower diaphragm plate and an air pipe assembled at one end of the lower diaphragm plate, a plurality of air pipe holes are formed in the connecting position of the air pipe and the side, facing the film, of the lower film plate, a plurality of film plate holes are formed in the lower film plate, the air pipe is connected with a positive pressure device, and the air pipe holes and the film plate holes are matched with each other to enable the film to run stably, so that the film is perpendicular to and parallel to a product. The diaphragm plate hole corresponds to the air pipe hole, and the air pipe hole is perpendicular to the diaphragm plate hole. By adopting the technical scheme, compared with an early-stage lower diaphragm plate device, the lower diaphragm plate device has the advantages that the diaphragm can stably run on a set track, the flatness of the diaphragm cannot be influenced by hemming, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a lower film plate device and a three-dimensional packaging machine. Background Art

[0002] In an automated packaging production line, BOPP (biaxially oriented polypropylene) film is widely used in the packaging of various products, especially in the fields of food, medicine, etc. The BOPP film is favored for its good transparency, moisture resistance and tear resistance. Traditional packaging methods usually use a lower film plate as an auxiliary device, and the film is guided to run downward by its own gravity and the gas blown out by the pressing wheel. However, when the BOPP film sags by its own gravity, it is easily affected by external airflows. Especially when the pressing wheel blows air, the film may swing or deviate from the preset track. In dry areas, the air humidity is low, which increases the possibility of static electricity generation on the film surface. Static electricity can cause the film sheets to adsorb to each other, or the edges of the film sheets to curl up, affecting the flatness of the film. Due to the unstable operation of the film, it is necessary to frequently stop the machine for adjustment, which greatly reduces the production efficiency. Therefore, improvement is urgently needed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a lower film plate device and a three-dimensional packaging machine aiming at the defects and deficiencies of the prior art, which have the advantages that the film can run smoothly on the set track, will not curl and affect the flatness of the film, and improve the production efficiency.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a lower film plate device, comprising: a lower film plate, and an air pipe assembled at one end of the lower film plate; a plurality of air pipe holes are arranged at the connection of the air pipe and the side of the lower film plate facing the film, a plurality of film plate holes are arranged on the lower film plate, the air pipe is connected to a positive pressure device, and the air pipe holes and the film plate holes cooperate with each other to make the film run smoothly.

[0005] The utility model is further arranged such that the film plate holes correspond to the air pipe holes.

[0006] The utility model is further arranged such that the air pipe holes and the film plate holes are vertically arranged.

[0007] The utility model is further arranged such that the air pipe is welded to the lower film plate.

[0008] The utility model is further arranged such that the lower film plate is made of stainless steel.

[0009] The utility model is further arranged such that the interface end of the air pipe is bent into a shape.

[0010] The utility model is further arranged such that a fixing member is provided on the side of the lower film plate facing away from the film plate holes.

[0011] To achieve the above object, another technical solution adopted by the present utility model is: a three-dimensional packaging machine, comprising: a three-dimensional main body, a roller assembled on the three-dimensional main body and used for pulling the film, and the lower film plate device as described above.

[0012] After adopting the above technical solution, the beneficial effect of the present utility model is: in the present utility model, by providing a lower film plate and an air pipe, a plurality of air pipe holes are arranged at the connection between the air pipe and the side of the lower film plate facing the film, and a plurality of film plate holes are arranged on the lower film plate. Thus, when the air pipe is connected to the positive pressure device, air flow will be input into the air pipe, and then the air flow will output from the air pipe holes and blow towards the film plate holes. At this time, there is a slight suction force on the side of the lower film plate facing away from the film, so that the film can run smoothly downward without causing curling or skewing. Therefore, the film can run smoothly on the set track without curling, which affects the flatness of the film, and has the advantage of improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 is a schematic structural view of the lower film plate device;

[0015] Figure 2 is corresponding to Figure 1 the F-F sectional view;

[0016] Figure 3 is a schematic structural view of another perspective of the lower film plate.

[0017] Description of the reference numerals: 100, lower film plate; 110, film plate hole; 120, fixing member; 200, air pipe; 210, air pipe hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will further describe the present utility model in detail with reference to the drawings.

[0019] This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications without creative contributions to this embodiment after reading this specification, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

[0020] This embodiment relates to a lower film plate device. Refer to Figures 1 - 2, including: a lower template 100 and an air pipe 200 assembled at one end of the lower template 100. Specifically, the air pipe 200 is arranged at the top of the lower template 100. When the film naturally slides down, the lower template 100 serves as an auxiliary device, and together with the further auxiliary function of the air pipe 200, it ensures that the film is parallel and vertically packaged with the product.

[0021] Furthermore, a plurality of air pipe holes 210 are arranged at the connection between the air pipe 200 and the side of the lower template 100 facing the film, and a plurality of template holes 110 are arranged on the lower template 100. The air pipe 200 is connected to a positive pressure device, and the air pipe holes 210 and the template holes 110 cooperate with each other to enable the film to run smoothly. The side of the air pipe holes 210 and the template holes 110 on the lower template 100 facing the film is the front side, and the other side is the back side. When the positive pressure device works, compressed air will be delivered to the air pipe holes 210 through the air pipe 200, and further blown towards the film through the template holes 110. When the film passes through the template holes 110, it can receive a slight suction force generated from the back side of the lower template 100. The interaction of the air flow, the air pipe holes 210, and the template holes 110 can form an air cushion to support the film. Furthermore, the air pipe holes 210 and the template holes 110 are both arranged at intervals, and the air flow can evenly discharge and flow, so that the film is not prone to sagging or deformation during transmission, effectively preventing the film from generating wrinkles or the edges of the film from curling, making the film flatter, thereby improving the packaging quality and further improving the production efficiency. Through the action of the air flow, the film can be better positioned and kept flat, reducing the errors during the packaging process and increasing the output. Therefore, the film can run smoothly on the set track, without curling and affecting the flatness of the film, with the advantage of improving the production efficiency.

[0022] In this embodiment, referring to Figure 1 , the template holes 110 correspond to the air pipe holes 210. The air pipe holes 210 and the template holes 110 are in one-to-one correspondence. The air flow coming out of the air pipe 200 is evenly distributed to each part of the lower template 100. On the entire contact surface of the film, the pressure distribution of the air flow will be more uniform, which helps the film to run smoothly. At the same time, it ensures that each area of the film receives the same air flow support, avoiding film deformation or jitter caused by uneven local stress.

[0023] In this embodiment, the air pipe holes 210 and the template holes 110 are arranged vertically. Specifically, the air pipe 200 is arranged on the upper side of the lower template 100, the air pipe holes 210 are arranged vertically downward, and the template holes 110 are arranged perpendicular to the film. The air flow blows vertically out of the air pipe holes 210, and the template holes 110 act vertically on the film, ensuring that the air flow acts on the film at a stable flow rate and can also form a more stable air cushion layer, making the film more stable during operation. If the air pipe holes 210 are not arranged vertically downward, the film will have a large swing under the action of the air flow, causing the film not to run smoothly.

[0024] In this embodiment, the air pipe 200 is welded to the lower template 100. Specifically, in this embodiment, the air pipe 200 is welded to the upper side of the lower template 100 by the TIG welding method. TIG welding can provide a very firm welded connection, ensuring the bonding strength between the air pipe 200 and the lower template 100, avoiding loosening or leakage under long-term use or high-pressure conditions, and at the same time ensuring the precise docking between the air pipe 200 and the lower template 100. Specifically, after welding, grinding and leveling are carried out to prevent the welding points from protruding and affecting the air flow. In other embodiments, other welding methods can also be used for the air pipe 200 and the lower template 100.

[0025] In this embodiment, the lower template 100 is made of stainless steel. Stainless steel has high mechanical strength and toughness, can withstand large loads, is not easily deformed, and is suitable for long-term use. In other embodiments, the lower template 100 can also be made of other metal materials.

[0026] In this embodiment, referring to Figures 2 - 3 , the interface end of the air pipe 200 is bent and formed. The bent and formed interface can better adapt to the space limitations inside the device, and at the same time can buffer the direct impact of the air flow to a certain extent and improve the stability of the air flow. Specifically, in this embodiment, the interface end of the air pipe 200 is in an L shape. In other embodiments, the interface end of the air pipe 200 can also be in a U shape or other shapes.

[0027] In this embodiment, a fixing member 120 is provided on the side of the lower template 100 facing away from the template hole 110. The fixing member 120 can enhance the overall structural stability of the lower template 100. Especially under the action of the air flow, it can prevent the lower template 100 from deforming or displacing. Specifically, in this embodiment, a fixing hole is provided in the middle of the fixing member 120, and the air pipe 200 and other related components can be fixed through the fixing hole, making the installation and disassembly more convenient and fast.

[0028] This embodiment also relates to a three-dimensional packaging machine, including: a three-dimensional main body (not shown), a roller (not shown) assembled on the three-dimensional main body and used for pulling the film, and the lower template device as described above.

[0029] The above is only used to illustrate the technical solution of the present invention and not to limit it. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should all be covered within the scope of the claims of the present invention.

Claims

1. A lower template device, characterized in that, Comprising: A lower template (100), and an air pipe (200) assembled at one end of the lower template (100); a plurality of air pipe holes (210) are arranged at the connection of the air pipe (200) and the lower template (100) facing the membrane side, a plurality of template holes (110) are arranged on the lower template (100), the air pipe (200) is connected to a positive pressure device, and the air pipe holes (210) and the template holes (110) cooperate with each other to make the membrane run smoothly.

2. The lower template device according to claim 1, characterized in that, The template holes (110) correspond to the air pipe holes (210).

3. The lower template device according to claim 1, characterized in that, The air pipe holes (210) are vertically arranged with respect to the template holes (110).

4. The lower template device according to claim 1, characterized in that, The air pipe (200) is welded to the lower template (100).

5. The lower template device according to claim 1, characterized in that, The lower template (100) is made of stainless steel.

6. The lower template device according to claim 1, characterized in that, The interface end of the air pipe (200) is bent and formed.

7. The lower template device according to claim 1, characterized in that A fixing member (120) is arranged on a side of the lower template (100) facing away from the template holes (110).

8. A three-dimensional packaging machine, characterized in that, Comprising: A three-dimensional host, a roller assembled on the three-dimensional host and used for pulling the membrane, and a lower template device according to any one of claims 1-7.

Images