Plastic bag production equipment with plastic bag flattening function
By introducing electric cylinder-controlled connecting rods and heating wire-heated flat rollers in the plastic bag production equipment, the problem of wrinkles in the plastic bag film during the winding process is solved, and more efficient flattening is achieved and product quality is improved.
Patent Information
- Application Number
- CN202422454005.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing plastic bag production equipment lacks flat treatment after blow molding, resulting in the plastic bag film being prone to wrinkles and creases during the winding process, affecting product quality.
A plastic bag production equipment with flattening function is designed. The flattening roller is driven to stretch the plastic bag film through the electric cylinder control link, and the flattening roller surface is heated by an electric heating wire to achieve a tight fit and heat softening of the plastic bag film, reducing the generation of wrinkles.
Effectively reduce the wrinkles of plastic bag film, improve the flatness and quality of plastic bags.
Smart Images

Figure CN223187147U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic belt production, in particular to plastic bag production equipment with the function of flattening plastic bags. Background Art
[0002] Plastic bags are indispensable items in people's daily lives and are often used to hold other items. They are widely used because of their advantages of being cheap, extremely light, large in capacity, and easy to store. The most important part of their production process is film blowing, which is a plastic processing method that refers to heating and melting plastic particles and then blowing them into a film. Existing plastic bag production is generally directly rolled and packaged after blow molding, and there is a lack of flattening treatment of the plastic bag film. The plastic bag film is easily affected by mechanical force, temperature, and the material's own properties during the rolling process, resulting in unnecessary wrinkles and creases on the surface, which affects product quality. Therefore, a plastic bag production equipment with the function of flattening plastic bags is proposed. Utility Model Content
[0003] The purpose of the present utility model is to solve any one of the problems in the above-mentioned technologies, and thus proposes a plastic bag production equipment with the function of flattening plastic bags, comprising a base and a first roller and a second roller arranged on the right side of the base, a first support and a second support are provided on the left side of the base, a connecting rod is hingedly provided on the second support, and a flattening roller is provided at the other end of the connecting rod.
[0004] Furthermore, the cross section of the base is L-shaped, and countersunk holes are provided at the four corners of the bottom of the base.
[0005] Furthermore, an electric cylinder is hingedly provided on the first support, and a third support is provided in the middle of the connecting rod.
[0006] Furthermore, the output end of the electric cylinder is hinged to the third support, and the connecting rod can be controlled to swing through the electric cylinder.
[0007] Furthermore, the leveling roller is rotatably mounted on the connecting rod, and the leveling roller is located between the first roller and the second roller.
[0008] Furthermore, a heating wire is provided inside the leveling roller, and the surface of the leveling roller is heated by the heating wire.
[0009] Beneficial effects: The utility model controls the connecting rod to swing up and down through the electric cylinder, and the connecting rod drives the smoothing roller to stretch the plastic bag film to a certain extent, so that the surface of the smoothing roller is closely fitted with the plastic bag film to reduce the generation of wrinkles, thereby enabling the smoothing roller to smooth the plastic bag film while rotating. At the same time, the surface of the smoothing roller is heated by the electric heating wire, so that the outside of the smoothing roller has a certain temperature, which is convenient for the smoothing roller to shape the plastic bag film and can further improve its smoothing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 It is a structural diagram of the base of the utility model;
[0012] Figure 3 This is a partial cross-sectional view of the smoothing roller of the utility model;
[0013] Reference numerals: base 1; countersunk hole 101; first support 2; second support 3; electric cylinder 4; connecting rod 5; third support 501; leveling roller 6; heating wire 601; first roller 7; second roller 8; plastic bag film 9. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0015] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.
[0016] Hereinafter, a plastic bag production device having the function of flattening plastic bags according to an embodiment of the present invention will be described with reference to the accompanying drawings. Figures 1 to 3 As shown, the plastic bag production equipment with the function of flattening plastic bags includes a base 1 and a first roller 7 and a second roller 8 arranged on the right side of the base 1, a first support 2 and a second support 3 are provided on the left side of the base 1, a connecting rod 5 is hingedly provided on the second support 3, and a flattening roller 6 is provided at the other end of the connecting rod 5.
[0017] Preferably, the cross section of the base 1 is L-shaped, and countersunk holes 101 are provided at the four corners of the bottom of the base 1 .
[0018] In a specific embodiment: the base 1 is fixedly installed in the plastic bag production line through the four countersunk holes 101 at the bottom. When the plastic bag film 9 needs to be flattened, the plastic bag film 9 is passed around the first roller 7, the flattening roller 6 and the second roller 8 in sequence. During the continuous winding process, the plastic bag film 9 will drive the first roller 7, the flattening roller 6 and the second roller 8 to rotate synchronously, and the plastic bag film 9 is flattened by the flattening roller 6.
[0019] Preferably, an electric cylinder 4 is hingedly provided on the first support 2 , and a third support 501 is provided in the middle of the connecting rod 5 .
[0020] Preferably, the output end of the electric cylinder 4 is hinged to the third support 501 , and the connecting rod 5 can be controlled to swing by the electric cylinder 4 .
[0021] Preferably, the smoothing roller 6 is rotatably mounted on the connecting rod 5 , and the smoothing roller 6 is located between the first roller 7 and the second roller 8 .
[0022] Preferably, a heating wire 601 is provided inside the leveling roller 6 , and the surface of the leveling roller 6 is heated by the heating wire 601 .
[0023] In a specific embodiment: by controlling the operation of the electric cylinder 4 to drive the connecting rod 5 to swing up and down around the second support 3, the connecting rod 5 will drive the smoothing roller 6 to move closer to or away from the first roller 7 and the second roller 8 in the horizontal direction, thereby driving the smoothing roller 6 to stretch the plastic bag film 9 to a certain extent, so that the surface of the smoothing roller 9 is closely fitted with the plastic bag film 9 to reduce the generation of wrinkles, so that the smoothing roller 6 can smooth the plastic bag film 9 when rotating. At the same time, the surface of the smoothing roller 6 is heated by the electric heating wire 601, so that the outside of the smoothing roller 6 has a certain temperature, thereby heating and softening the plastic bag film 9, so that the smoothing roller 6 can shape the plastic bag film 9, which can further improve its smoothing effect.
[0024] It should be noted that the electric cylinder 4 and the heating wire 601 are both conventional commercially available equipment with built-in power switches. Those skilled in the art can make conventional selections based on usage needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed by the prior art, so they will not be elaborated on in this article.
[0025] Working principle: When in use, the base 1 is fixedly installed in the plastic bag production line through the four countersunk holes 101 at the bottom. When the plastic bag film 9 needs to be flattened, the plastic bag film 9 is passed around the first roller 7, the flattening roller 6 and the second roller 8 in sequence. During the continuous winding process, the plastic bag film 9 drives the first roller 7, the flattening roller 6 and the second roller 8 to rotate synchronously. By controlling the operation of the electric cylinder 4, the connecting rod 5 is driven to swing up and down around the second support 3. When the connecting rod 5 swings, it drives the flattening roller 6 to move horizontally. The rollers 7 and 8 are moved closer or further away from each other, thereby driving the smoothing roller 6 to stretch the plastic bag film 9 to a certain extent, so that the surface of the smoothing roller 9 is in close contact with the plastic bag film 9 to reduce the generation of wrinkles, thereby enabling the smoothing roller 6 to smooth the plastic bag film 9 while rotating. At the same time, the surface of the smoothing roller 6 is heated by the electric heating wire 601, so that the outside of the smoothing roller 6 has a certain temperature, thereby heating and softening the plastic bag film 9, so that the smoothing roller 6 can shape the plastic bag film 9, which can further improve its smoothing effect.
Claims
1. A plastic bag production device with a plastic bag flattening function, comprising a base (1) and a first roller (7) and a second roller (8) arranged on the right side of the base (1), wherein a first support (2) and a second support (3) are arranged on the left side of the base (1), characterized in that: A connecting rod (5) is hingedly provided on the second support (3), and a leveling roller (6) is provided at the other end of the connecting rod (5).
2. The plastic bag production equipment with the function of flattening plastic bags according to claim 1, characterized in that: The base (1) has an L-shaped cross section, and countersunk holes (101) are provided at the four corners of the bottom of the base (1).
3. The plastic bag production equipment with the function of flattening plastic bags according to claim 1, characterized in that: An electric cylinder (4) is hingedly provided on the first support (2), and a third support (501) is provided in the middle of the connecting rod (5).
4. The plastic bag production equipment with the function of flattening plastic bags according to claim 3, characterized in that: The output end of the electric cylinder (4) is hinged to the third support (501), and the connecting rod (5) can be controlled to swing through the electric cylinder (4).
5. The plastic bag production equipment with the function of flattening plastic bags according to claim 1, characterized in that: The leveling roller (6) is rotatably mounted on the connecting rod (5), and the leveling roller (6) is located between the first roller (7) and the second roller (8).
6. The plastic bag production equipment with the function of flattening plastic bags according to claim 5, characterized in that: A heating wire (601) is provided inside the leveling roller (6), and the surface of the leveling roller (6) is heated by the heating wire (601).