Forming device for producing degradable plastic packaging bag

Abstract

The utility model discloses a forming device for producing degradable plastic packaging bags, which is characterized in that a winding roller is arranged on the right side of a main frame, a plurality of groups of positioning rollers for positioning strip-shaped materials are arranged between an unwinding roller and the winding roller, a pressing cylinder is arranged in the middle of the main frame, a pressing seat is arranged at the output end of the pressing cylinder, and the pressing seat is connected with the unwinding roller. According to the forming device for producing the degradable plastic packaging bag, the situation that in the prior art, in the actual use process, hot pressing and easy-to-tear strip cutting are still conducted through two devices, an additional positioning mechanism is needed in the later step, and the structure is complex is improved, the cutting device and the hot pressing structure are directly integrated on the same reciprocating mechanism, and the production efficiency is improved. Hot pressing and cutting are conducted at the same time, the distance between the hot pressing and the cutting can be adjusted by adjusting the interval between the spring seat and the easy-to-tear tape cutter seat, an additional positioning mechanism does not need to be arranged, the equipment cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production equipment, in particular to a forming device for producing degradable plastic packaging bags. Background Art

[0002] Currently, Chinese Patent No. CN202410781849.0 discloses an environmentally friendly plastic packaging bag hot-pressing device, comprising a device body, a plastic roll holder for mounting a plastic roll, guides for rolling the plastic paper inwardly, and a back-sealing mechanism for heat-sealing the two sides of the plastic paper into a circle at the corresponding positions of the device body and the guides. A transverse sealing mechanism for sealing the bottom of the heat-sealed plastic paper is provided at the corresponding position of the bottom of the back-sealing mechanism. Compared with the prior art, the present invention, through the provision of the guides and transverse sealing mechanism, eliminates the need for the user to fold the two sides of the plastic paper in half, thus avoiding the problem of three layers of plastic being hot-pressed into a single piece and unable to form a cylindrical structure. Furthermore, the provision of a cooling mechanism cools the hot-pressed area, accelerating the forming process of the hot-pressed area, thereby improving production efficiency and reducing the rejection rate of packaging bags. However, in actual use, the prior art still suffers from the problem that hot pressing and tear strip cutting require two separate devices, and the latter step requires an additional positioning mechanism, resulting in a complex structure. Utility Model Content

[0003] Therefore, in response to the above problems, the present invention proposes a forming device for the production of degradable plastic packaging bags, which solves the technical problem that the existing technology still has the problem of using two devices for processing hot pressing and tear strip cutting during actual use, and the latter steps also require additional positioning mechanisms, resulting in a complex structure.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a forming device for producing degradable plastic packaging bags, whose structure includes a main frame, a unwinding roller, a winding roller, a positioning roller, a downward pressure cylinder, a forming bracket, a downward pressure seat, a positioning plate, a positioning plate protrusion, a spring seat, a hot pressing strip, an easy-to-tear strip cutting knife, and a cutting knife clearance groove. A unwinding roller is arranged on the left side of the main frame, and a winding roller is arranged on the right side of the main frame. Multiple groups of positioning rollers for positioning strip materials are arranged between the unwinding roller and the winding roller. A downward pressure cylinder is arranged in the middle of the main frame, and a downward pressure seat is arranged at the output end of the downward pressure cylinder. A positioning plate is arranged on the left and right sides of the bottom surface of the lower pressure seat, and the left and right sides of the positioning plate are upwardly tilted structures. A spring seat is arranged on the bottom surface of the lower pressure seat, and the bottom of the spring seat is connected to the hot pressing strip. An easy-to-tear strip cutting knife is arranged 5-10mm on the right side of the hot pressing strip, and a cutting knife clearance groove is arranged on the forming bracket below the easy-to-tear strip cutting knife.

[0005] Furthermore, the bottom surface of the positioning plate is a smooth surface.

[0006] Furthermore, the positioning plate is made of stainless steel.

[0007] Furthermore, the blade of the tear strip cutting knife is a tooth-like structure.

[0008] Furthermore, the formed bracket is made of stainless steel with a smooth top surface.

[0009] Furthermore, a cooling fan for heat dissipation is provided below the forming bracket and at a position facing the heat pressing strip.

[0010] By adopting the above-mentioned technical solution, the beneficial effects of the utility model are as follows: the forming device for the production of degradable plastic packaging bags improves the existing technology. In actual use, there is still the problem that hot pressing and easy-tear strip cutting use two devices for processing, and the latter steps also require an additional positioning mechanism, which is a complicated structure. The cutting device and the hot pressing structure are directly integrated into the same reciprocating mechanism, so that hot pressing and cutting can be performed simultaneously. The spacing between them can be adjusted by adjusting the interval between the spring seat and the easy-tear strip cutting knife seat. There is no need to set up an additional positioning mechanism, which reduces equipment costs and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the lower pressure seat of the utility model.

[0013] In the figure: 1. Main frame; 2. Unwinding roller; 3. Rewinding roller; 4. Positioning roller; 5. Down-pressing cylinder; 6. Forming bracket; 7. Down-pressing seat; 8. Positioning plate; 9. Positioning plate protrusion; 10. Spring seat; 11. Hot pressing strip; 12. Easy-tear strip cutting knife; 13. Cutting knife clearance groove. DETAILED DESCRIPTION

[0014] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0015] refer to Figure 1-Figure 2The present embodiment provides a forming device for producing biodegradable plastic packaging bags, which includes a main frame 1, a reeling roller 2, a reeling roller 3, a positioning roller 4, a pressing cylinder 5, a forming bracket 6, a pressing seat 7, a positioning plate 8, a positioning plate protrusion 9, a spring seat 10, a hot press 11, an easy-tear strip cutting knife 12, and a cutting knife clearance groove 13. The unwinding roller 2 is provided on the left side of the main frame 1, and the reeling roller 3 is provided on the right side of the main frame 1. A plurality of positioning rollers 4 for positioning strip materials are provided between the unwinding roller 2 and the reeling roller 3. A downward pressure cylinder 5 is set in the middle of the main frame 1, and a downward pressure seat 7 is set at the output end of the downward pressure cylinder 5. A positioning plate 8 is set on the left and right sides of the bottom surface of the downward pressure seat 7. The left and right sides of the positioning plate 8 are upwardly tilted structures. A spring seat 10 is set on the bottom surface of the downward pressure seat 7. The bottom of the spring seat 10 is connected to the hot pressing strip 11. An easy-tear strip cutting knife 12 is set 5-10mm on the right side of the hot pressing strip 11, and a cutting knife clearance groove 13 is set on the forming bracket 6 below the easy-tear strip cutting knife 12.

[0016] The bottom surface of the positioning plate 8 is a smooth surface.

[0017] The positioning plate 8 is made of stainless steel.

[0018] The blade of the tear strip cutting knife 12 is a tooth-like structure.

[0019] The forming bracket 6 is made of stainless steel with a smooth top surface.

[0020] A cooling fan for heat dissipation is provided below the forming bracket 6 and at a position facing the heating strip 11 .

[0021] The present invention relates to a forming device for producing degradable plastic packaging bags, which improves the existing technology. In actual use, the existing technology still has the problem that hot pressing and tear strip cutting still require two devices for processing, and the latter step also requires an additional positioning mechanism, which is a complicated structure. The cutting device and the hot pressing structure are directly integrated into the same reciprocating mechanism, so that hot pressing and cutting can be performed simultaneously. The spacing between them can be adjusted by adjusting the interval between the spring seat 10 and the tear strip cutting knife 12. There is no need to set up an additional positioning mechanism, which reduces equipment cost and improves work efficiency.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A forming device for producing degradable plastic packaging bags, characterized by: Its structure includes a main frame, a unwinding roller, a winding roller, a positioning roller, a downward pressure cylinder, a forming bracket, a downward pressure seat, a positioning plate, a positioning plate protrusion, a spring seat, a hot pressing strip, an easy-tear strip cutting knife, and a cutting knife clearance groove. A unwinding roller is arranged on the left side of the main frame, and a winding roller is arranged on the right side of the main frame. Multiple groups of positioning rollers for positioning strip materials are arranged between the unwinding roller and the winding roller. A downward pressure cylinder is arranged in the middle of the main frame, and a downward pressure seat is arranged at the output end of the downward pressure cylinder. A positioning plate is arranged on the left and right sides of the bottom surface of the downward pressure seat respectively, and the left and right sides of the positioning plate are upwardly tilted structures. A spring seat is arranged on the bottom surface of the downward pressure seat, and the bottom of the spring seat is connected to the hot pressing strip. An easy-tear strip cutting knife is arranged 5-10mm on the right side of the hot pressing strip, and a cutting knife clearance groove is arranged on the forming bracket below the easy-tear strip cutting knife.

2. A forming device for producing degradable plastic packaging bags according to claim 1, characterized in that: The bottom surface of the positioning plate is a smooth surface.

3. The forming device for producing a degradable plastic packaging bag according to claim 1, characterized in that: The positioning plate is made of stainless steel.

4. The forming device for producing a degradable plastic packaging bag according to claim 1, characterized in that: The blade of the easy-tear strip cutting knife is a tooth-shaped structure.

5. The forming device for producing a degradable plastic packaging bag according to claim 1, characterized in that: The forming bracket is made of stainless steel with a smooth top surface.

6. The forming device for producing a degradable plastic packaging bag according to claim 1, characterized in that: A cooling fan for dissipating heat is provided below the forming bracket and at a position facing the heat press strip.

Images