A front and back printing device for PVC film

Abstract

The utility model relates to PVC film printing technical field, especially a front and back PVC film printing equipment, including first conveying roller, second conveying roller, third conveying roller, fourth conveying roller and fifth conveying roller, second conveying roller and fourth conveying roller non -contact cross installation, second conveying roller and fourth conveying roller are X -shaped in the supine position, third conveying roller installs in the back of second conveying roller and fourth conveying roller, first conveying roller and fifth conveying roller are installed in the left and right two ends of second conveying roller and fourth conveying roller, second conveying roller and fourth conveying roller are X -shaped in the supine position, third conveying roller installs in the back of second conveying roller and fourth conveying roller, makes PVC film realize turning over, sets up the position of installing second conveying roller, third conveying roller and fourth conveying roller, can make PVC film turning over, simple structure can promote production efficiency, and the manufacturing cost is low.

Description

Technical Field

[0001] This utility model relates to the field of PVC film printing technology, and in particular to a front and back PVC film printing device. Background Technology

[0002] Polyvinyl chloride (PVC) film is widely used in advertising signage, decoration, and product packaging due to its excellent durability, flexibility, and printability. In practical applications, it is often necessary to print patterns or text on both sides of the PVC film to achieve richer visual effects or functional requirements, such as double-sided advertising and transparent window stickers.

[0003] Currently, the industry uses equipment for double-sided printing on PVC film in two main ways: single-machine multi-pass printing and manual flipping. The operator first prints the front side of the film on a single printing machine, then unloads the entire roll and flips it manually or with a simple auxiliary frame. The film is then reloaded, aligned, and printed on the reverse side. This method has significant drawbacks. First, the secondary loading and alignment process is cumbersome, greatly reducing production efficiency and increasing time and labor costs. Second, manual flipping is prone to scratching, contamination, or wrinkling of the printed front side due to improper operation, resulting in a lower yield rate. Third, the double printing and drying process increases the risk of film deformation due to heat and tension changes, affecting registration accuracy.

[0004] Therefore, there is an urgent need for a PVC film flipping device that is simple in structure, highly efficient in production, and low in cost. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this invention is to propose a double-sided PVC film printing device that allows the PVC film to be flipped directly after printing on one side for printing on the other side, thereby improving production efficiency, having a simple structure, and low manufacturing cost.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A double-sided PVC film printing device includes a first conveyor roller, a second conveyor roller, a third conveyor roller, a fourth conveyor roller, and a fifth conveyor roller; the second conveyor roller and the fourth conveyor roller are non-contactly cross-mounted, and the second conveyor roller and the fourth conveyor roller form an X-shape when viewed from above; the third conveyor roller is installed on the rear side of the second conveyor roller and the fourth conveyor roller; the first conveyor roller and the fifth conveyor roller are respectively installed at the left and right ends of the second conveyor roller and the fourth conveyor roller.

[0008] Preferably, the first conveying roller, the second conveying roller, the third conveying roller, the fourth conveying roller, and the fifth conveying roller are arranged in order from low to high.

[0009] Preferably, it further includes an air pump and an air collection box, wherein the air pump supplies air to the air collection box through an air pipe; the second conveying roller is hollow inside, and a plurality of first air outlet holes are evenly distributed on the surface of the second conveying roller; air pipes are respectively provided at both ends of the second conveying roller, and the other end of the air pipes is connected to the air collection box; the fourth conveying roller is hollow inside, and a plurality of second air outlet holes are evenly distributed on the surface of the fourth conveying roller; air pipes are respectively provided at both ends of the fourth conveying roller, and the other end of the air pipes is connected to the air collection box; the air collection box supplies air to the interior of the second conveying roller and the interior of the fourth conveying roller through the air pipes.

[0010] Preferably, the bottom of the air pump and the air collection box are provided with a mounting bracket, which is used to support the air pump and the air collection box.

[0011] Preferably, a first support column is installed at each end of the first conveying roller, and the first support column is used to support the first conveying roller; the bottom of the first support column is installed on the top of the mounting frame.

[0012] Preferably, a second support column is installed at each end of the second conveying roller, and the second support column is used to support the second conveying roller; the bottom of the second support column is installed on the top of the mounting frame.

[0013] Preferably, a third support column is installed at each end of the third conveying roller, and the third support column is used to support the third conveying roller; the bottom of the third support column is installed on the top of the mounting frame.

[0014] Preferably, a fourth support column is installed at each end of the fourth conveying roller, and the fourth support column is used to support the fourth conveying roller; the bottom of the fourth support column is installed on the top of the mounting frame.

[0015] Preferably, a fifth support column is installed at each end of the fifth conveying roller, and the fifth support column is used to support the fifth conveying roller; the bottom of the fifth support column is installed on the top of the mounting frame.

[0016] The technical solution provided by this utility model can include the following beneficial effects: the second conveyor roller and the fourth conveyor roller are X-shaped when viewed from above; the third conveyor roller is installed on the rear side of the second and fourth conveyor rollers, so that the PVC film can be flipped. By setting the positions of the second, third and fourth conveyor rollers, the PVC film can be flipped. The structure is simple, which can improve production efficiency and reduce manufacturing costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a front and back PVC film printing device according to an embodiment of the present invention;

[0018] Figure 2 This is a front view structural schematic diagram of a front and back PVC film printing device according to an embodiment of this utility model;

[0019] Wherein: 1-first conveyor roller, 2-second conveyor roller, 3-third conveyor roller, 4-fourth conveyor roller, 5-fifth conveyor roller, 6-air pump, 7-air collection box, 8-air pipe, 9-mounting frame, 10-first support column, 11-second support column, 12-third support column, 13-fourth support column, 14-fifth support column. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0022] In the description of this utility model, unless otherwise stated, "a number" means one or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The following is combined with Figures 1 to 2 This describes a front and back PVC film printing device according to an embodiment of the present invention.

[0025] A PVC film printing device for both sides includes a first conveyor roller 1, a second conveyor roller 2, a third conveyor roller 3, a fourth conveyor roller 4, and a fifth conveyor roller 5; the second conveyor roller 2 and the fourth conveyor roller 4 are installed in a non-contact, cross-shaped manner, and the second conveyor roller 2 and the fourth conveyor roller 4 form an X-shape when viewed from above; the third conveyor roller 3 is installed on the rear side of the second conveyor roller 2 and the fourth conveyor roller 4; the first conveyor roller 1 and the fifth conveyor roller 5 are respectively installed at the left and right ends of the second conveyor roller 2 and the fourth conveyor roller 4.

[0026] A double-sided PVC film printing device is used to transport the PVC film to a first conveyor roller 1 after one side of the PVC film is printed. The PVC film passes through the upper surface of the first conveyor roller 1 and is transported to a second conveyor roller 2. The PVC film is then transported from the upper surface of the second conveyor roller 2 to the lower surface and then to a third conveyor roller 3. The PVC film is then transported from the lower surface of the third conveyor roller 3 to the upper surface and then to a fourth conveyor roller 4. The PVC film is then transported from the lower surface of the fourth conveyor roller 4 to the upper surface and then to a fifth conveyor roller 5. The PVC film is then output from the upper surface of the fifth conveyor roller 5, thus completing the double-sided flipping of the PVC film.

[0027] The second conveyor roller 2 and the fourth conveyor roller 4 form an X-shape when viewed from above; the third conveyor roller 3 is installed behind the second conveyor roller 2 and the fourth conveyor roller 4, enabling the PVC film to flip. By simply setting the positions of the second conveyor roller 2, the third conveyor roller 3, and the fourth conveyor roller 4, the PVC film can be flipped. This design is simple, improves production efficiency, and has low manufacturing costs.

[0028] To further explain, the first conveyor roller 1, the second conveyor roller 2, the third conveyor roller 3, the fourth conveyor roller 4, and the fifth conveyor roller 5 are arranged in sequence from low to high. This sequential arrangement of the first conveyor roller 1, the second conveyor roller 2, the third conveyor roller 3, the fourth conveyor roller 4, and the fifth conveyor roller 5 from low to high facilitates the movement of the PVC film during transport.

[0029] Specifically, it also includes an air pump 6 and an air collection box 7. The air pump 6 supplies air to the air collection box 7 through an air pipe 8. The second conveying roller 2 is hollow inside, and its surface is evenly provided with several first air outlets. Air pipes 8 are respectively provided at both ends of the second conveying roller 2, and the other end of the air pipes 8 is connected to the air collection box 7. The fourth conveying roller 4 is hollow inside, and its surface is evenly provided with several second air outlets. Air pipes 8 are respectively provided at both ends of the fourth conveying roller 4, and the other end of the air pipes 8 is connected to the air collection box 7. The air collection box 7 supplies air to the interiors of the second conveying roller 2 and the fourth conveying roller 4 through the air pump 6 and the air collection box 7. The airflow is ejected outward through the first and second air outlets to cool the PVC film. The air pump 6 can be a scroll air compressor.

[0030] Specifically, the air pump 6 and the air collection box 7 are provided with a mounting bracket 9 at their bottom, which is used to support the air pump 6 and the air collection box 7, facilitating the installation of the air pump 6 and the air collection box 7.

[0031] Specifically, a first support column 10 is installed at each end of the first conveying roller 1, and the first support column 10 is used to support the first conveying roller 1; the bottom of the first support column 10 is installed on the top of the mounting frame 9. The first support column 10 supports the mounting frame 9, which has a simple structure and low cost.

[0032] Specifically, second support columns 11 are installed at both ends of the second conveying roller 2, and the second support columns 11 are used to support the second conveying roller 2; the bottom of the second support column 11 is installed on the top of the mounting frame 9. The second support column 11 supports and installs the second conveying roller 2, which has a simple structure and low cost.

[0033] Specifically, a third support column 12 is installed at each end of the third conveying roller 3, and the third support column 12 is used to support the third conveying roller 3; the bottom of the third support column 12 is installed on the top of the mounting frame 9. The third support column 12 supports and installs the third conveying roller 3, which has a simple structure and low cost.

[0034] Specifically, a fourth support column 13 is installed at each end of the fourth conveyor roller 4, and the fourth support column 13 is used to support the fourth conveyor roller 4; the bottom of the fourth support column 13 is installed on the top of the mounting frame 9. The fourth support column 13 supports and installs the fourth conveyor roller 4, which has a simple structure and low cost.

[0035] Specifically, fifth support columns 14 are installed at both ends of the fifth conveyor roller 5, and the fifth support columns 14 are used to support the fifth conveyor roller 5; the bottom of the fifth support column 14 is installed on the top of the mounting frame 9. The fifth support column 14 supports and installs the fifth conveyor roller 5, which has a simple structure and low cost.

[0036] Other components and operations of the front and back PVC film printing equipment according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0037] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A printing device for PVC film on both sides, characterized in that: It includes a first conveyor roller (1), a second conveyor roller (2), a third conveyor roller (3), a fourth conveyor roller (4), and a fifth conveyor roller (5); The second conveying roller (2) and the fourth conveying roller (4) are installed crosswise without contact, and the second conveying roller (2) and the fourth conveying roller (4) form an X shape when viewed from above; The third conveying roller (3) is installed on the rear side of the second conveying roller (2) and the fourth conveying roller (4); The first conveying roller (1) and the fifth conveying roller (5) are respectively installed at the left and right ends of the second conveying roller (2) and the fourth conveying roller (4).

2. The PVC film printing equipment for both sides according to claim 1, characterized in that: The first conveying roller (1), the second conveying roller (2), the third conveying roller (3), the fourth conveying roller (4), and the fifth conveying roller (5) are arranged in order from low to high.

3. The PVC film printing equipment for both sides according to claim 1, characterized in that: It also includes an air pump (6) and an air collection box (7), wherein the air pump (6) supplies air to the air collection box (7) through an air pipe (8); The second conveying roller (2) is hollow inside, and a plurality of first air outlet holes are evenly arranged on the surface of the second conveying roller (2); The second conveying roller (2) is provided with air pipes (8) at both ends, and the other end of the air pipes (8) is connected to the air collection box (7); The fourth conveying roller (4) is hollow inside, and a number of second air outlet holes are evenly arranged on the surface of the fourth conveying roller (4); The fourth conveying roller (4) is provided with air pipes (8) at both ends, and the other end of the air pipes (8) is connected to the air collection box (7); The gas collection box (7) supplies air to the interior of the second conveying roller (2) and the interior of the fourth conveying roller (4) through the air pipe (8).

4. The front and back PVC film printing equipment according to claim 3, characterized in that: The bottom of the air pump (6) and the air collection box (7) are provided with a mounting bracket (9), which is used to support the air pump (6) and the air collection box (7).

5. A PVC film printing device for both sides according to claim 4, characterized in that: First support columns (10) are respectively installed at both ends of the first conveying roller (1), and the first support columns (10) are used to support the first conveying roller (1); The bottom of the first support column (10) is mounted on the top of the mounting bracket (9).

6. The front and back PVC film printing equipment according to claim 4, characterized in that: The second conveying roller (2) is equipped with a second support column (11) at both ends, and the second support column (11) is used to support the second conveying roller (2); The bottom of the second support column (11) is mounted on the top of the mounting bracket (9).

7. A PVC film printing equipment for both sides according to claim 4, characterized in that: The third conveying roller (3) is equipped with a third support column (12) at both ends, and the third support column (12) is used to support the third conveying roller (3); The bottom of the third support column (12) is mounted on the top of the mounting bracket (9).

8. A PVC film printing equipment for both sides according to claim 4, characterized in that: The fourth conveying roller (4) is equipped with a fourth support column (13) at both ends, and the fourth support column (13) is used to support the fourth conveying roller (4); The bottom of the fourth support column (13) is mounted on the top of the mounting bracket (9).

9. A PVC film printing device for both sides according to claim 4, characterized in that: The fifth conveying roller (5) is equipped with a fifth support column (14) at both ends, and the fifth support column (14) is used to support the fifth conveying roller (5); The bottom of the fifth support column (14) is mounted on the top of the mounting bracket (9).

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