Film blowing machine used in express bag production process

By designing a scraping component on the blown film machine, the scraping blade is rotated by a power motor and an electric push rod. Combined with gear meshing, the excess material in the express bag is automatically scraped off, solving the problems of increased labor and low efficiency caused by manual scraping and achieving highly efficient automated operation.

CN224276155UActive Publication Date: 2026-05-26SHANDONG ANGU SEAL PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ANGU SEAL PACKAGING CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-26

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Abstract

The utility model discloses a film blowing machine used in the express bag production process, which comprises a film blowing machine body, a film blowing port is arranged on one side surface of the film blowing machine body, one side surface of the film blowing machine body is connected with a scraping component, the scraping component comprises an annular clamping groove, the inner wall of the annular clamping groove is connected with a mounting seat in a sliding manner, and the mounting seat is arranged on the inner wall of the annular clamping groove. One side face of the mounting base is connected with a power motor, and the output end of the power motor is connected with a fixing frame. According to the device, the directions of a fixing frame and a scraping cutter can be adjusted through rotation of a power motor, the scraping cutter can make contact with a film blowing opening in cooperation with the pushing force of an electric push rod, and a gear can be driven to rotate in combination with rotation of a forward and reverse motor; and the gear is meshed with the annular toothed plate, and the mounting base is slidably connected with the annular clamping groove, so that the fixing frame and the scraping cutter can be conveniently driven to scrape excess materials at the film blowing opening during annular rotation, the labor amount is reduced, and the scraping efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a blown film machine used in the production process of express delivery bags. Background Technology

[0002] A blown film machine is a mechanical device used to manufacture plastic films. It heats and melts plastic particles and then blows them into films. This equipment can produce a variety of types of plastic films, including low-density polyethylene (LDPE), high-density polyethylene (HDPE), and linear low-density polyethylene (LLDPE).

[0003] Currently, blown film machines are required for processing express delivery bags. After blowing film onto an express delivery bag, the excess material at the outlet of the existing blown film machine needs to be manually scraped off. This scraping method not only increases the workload but also reduces the scraping efficiency. Therefore, we propose a blown film machine for the production process of express delivery bags to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a blown film machine for use in the production process of express delivery bags, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blown film machine for use in the production process of express delivery bags, comprising a blown film machine body, a blown film outlet on one side of the blown film machine body, a scraping component connected to one side of the blown film machine body, the scraping component including an annular groove, a mounting base slidably connected to the inner wall of the annular groove, a power motor connected to one side of the mounting base, a fixed frame connected to the output end of the power motor, an electric push rod embedded in one side of the fixed frame, a scraping blade installed at one end of the electric push rod, a forward and reverse motor connected to one side of the mounting base, a gear connected to the output end of the forward and reverse motor, and an annular toothed plate connected to the outer surface of the blown film machine body.

[0006] As a further technical solution of this utility model, a protective cover is connected to one side of the mounting base, and the protective cover is made of transparent acrylic.

[0007] As a further technical solution of this utility model, a connecting block is connected to the inner side wall of the fixing frame, and one side of the connecting block is connected to the inner top wall of the fixing frame.

[0008] As a further technical solution of this utility model, a visualization component is installed on one side of the fixing frame, and the visualization component is connected to a power source through a wire.

[0009] As a further technical solution of this utility model, a set of support frames is connected to one side of the blown film machine body, and each support frame has anti-slip texture on one side.

[0010] As a further technical solution of this utility model, a lighting lamp is installed on one side of the fixing frame, and the annular toothed plate meshes with a gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This device uses the rotation of a motor to adjust the direction of the fixing frame and the scraping blade. Combined with the pushing force of an electric push rod, it enables the scraping blade to contact the blown film nozzle. Furthermore, the rotation of the forward and reverse motors drives the gear to rotate. The gear meshes with the annular toothed plate, and the mounting base slides with the annular groove. This allows the fixing frame and the scraping blade to easily scrape off the excess material from the blown film nozzle during their annular rotation, reducing labor and increasing scraping efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the blown film machine body used in the production process of express delivery bags.

[0014] Figure 2 This is a cross-sectional view of the blown film machine body used in the production of express delivery bags.

[0015] Figure 3 A bottom view of the blown film machine body used in the production of express delivery bags;

[0016] Figure 4 This is a top view of the blown film machine body used in the production process of express delivery bags.

[0017] In the diagram: 1. Film blowing machine body; 2. Scraping assembly; 201. Annular groove; 202. Mounting base; 203. Power motor; 204. Fixing frame; 205. Electric push rod; 206. Scraping blade; 207. Forward and reverse motor; 208. Gear; 209. Annular toothed plate; 3. Support frame; 4. Connecting block; 5. Visualization assembly; 6. Lighting lamp; 7. Protective cover; 8. Film blowing nozzle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model discloses a blown film machine for use in the production process of express delivery bags. It includes a blown film machine body 1, with a blown film outlet 8 on one side of the body 1. A scraping assembly 2 is connected to one side of the body 1. The scraping assembly 2 includes an annular groove 201, with a mounting base 202 slidably connected to the inner wall of the annular groove 201. A power motor 203 is connected to one side of the mounting base 202, and a fixing frame 204 is connected to the output end of the power motor 203. An electric push rod 205 is embedded in one side of the fixing frame 204, and a scraping blade 206 is installed at one end of the electric push rod 205. A forward and reverse motor 207 is connected to one side of the mounting base 202, and a gear 208 is connected to the output end of the forward and reverse motor 207. An annular toothed plate 209 is connected to the outer surface of the blown film machine body 1. The machine is powered by a motor. The rotation of motor 203 can adjust the direction of the fixed frame 204 and the scraping blade 206. Combined with the pushing force of electric push rod 205, it can make the scraping blade 206 contact the blown film nozzle 8. In addition, the rotation of forward and reverse motor 207 can drive gear 208 to rotate. With gear 208 meshing with ring tooth plate 209 and mounting base 202 slidingly connected with ring groove 201, it can easily scrape off the excess material from blown film nozzle 8 while the fixed frame 204 and scraping blade 206 rotate in a ring. This reduces the amount of labor and increases the scraping efficiency. Electric push rod 205, also known as linear actuator, is a new type of linear actuator mainly composed of motor push rod and control device. It can be considered as an extension of rotary motor in terms of structure.

[0020] A protective cover 7, made of transparent acrylic, is connected to one side of the mounting base 202. The protective cover 7 can protect the gear 208 and the ring tooth plate 209. A connecting block 4 is connected to the inner side wall of the fixing frame 204. One side of the connecting block 4 is connected to the inner top wall of the fixing frame 204. The connecting block 4 can increase the load-bearing capacity of the fixing frame 204. A visualization component 5 is installed on one side of the fixing frame 204. The visualization component 5 is connected to the power supply through wires. The visualization component 5 can be used to easily observe and transmit the scraped material.

[0021] A set of support frames 3 is connected to one side of the blown film machine body 1. Each support frame 3 has anti-slip texture on one side. The support frame 3 and anti-slip texture can be used to support and position the equipment. A lighting lamp 6 is installed on one side of the fixed frame 204. The ring toothed plate 209 meshes with the gear 208. The lighting lamp 6 can be used to provide supplementary lighting for the observer.

[0022] The working principle of this utility model is as follows: First, it is transported to the place of use and the electrical components are connected to the power supply. The blown film machine body 1 blows film onto the express bag. After the express bag is processed, the automatic program starts the power motor 203. The rotation of the power motor 203 causes the fixing frame 204 and the scraping blade 206 to rotate above the blown film nozzle 8. Then, the pushing force of the electric push rod 205 causes the scraping blade 206 to contact the residual material on the surface of the blown film nozzle 8. The forward and reverse motor 207 starts working, and the rotation of the forward and reverse motor 207 causes the gear 208 to rotate. The gear 208 meshes with the annular toothed plate 209 and the mounting base 202 slides with the annular groove 201. This allows the fixing frame 204 to drive the scraping blade 206 to scrape off the residual material in annular rotation. At the same time, it is necessary to manually collect the scraped residual material. Then, the forward and reverse motor 207 will rotate in the opposite direction after rotating at most one revolution, so as not to cause the wires of the above electrical components to become tangled. The above is the entire usage process of this utility model.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A blown film machine for use in the production process of express delivery bags, characterized in that: The machine includes a blown film machine body (1), one side of which is provided with a blown film outlet (8). A scraping assembly (2) is connected to one side of the blown film machine body (1). The scraping assembly (2) includes an annular groove (201). A mounting base (202) is slidably connected to the inner wall of the annular groove (201). A power motor (203) is connected to one side of the mounting base (202). A fixing frame (204) is connected to the output end of the power motor (203). An electric push rod (205) is embedded in one side of the fixing frame (204). A scraping blade (206) is installed at one end of the electric push rod (205). A forward and reverse motor (207) is connected to one side of the mounting base (202). A gear (208) is connected to the output end of the forward and reverse motor (207). An annular toothed plate (209) is connected to the outer surface of the blown film machine body (1).

2. The blown film machine for use in the production process of express delivery bags according to claim 1, characterized in that: A protective cover (7) is connected to one side of the mounting base (202), and the protective cover (7) is made of transparent acrylic.

3. The blown film machine for use in the production process of express delivery bags according to claim 1, characterized in that: The inner wall of the fixing frame (204) is connected to a connecting block (4), and one side of the connecting block (4) is connected to the inner top wall of the fixing frame (204).

4. A blown film machine for use in the production process of express delivery bags according to claim 1, characterized in that: A visualization component (5) is mounted on one side of the mounting bracket (204), and the visualization component (5) is connected to a power source via a wire.

5. A blown film machine for use in the production process of express delivery bags according to claim 1, characterized in that: A set of support frames (3) is connected to one side of the blown film machine body (1), and each support frame (3) has anti-slip texture on one side.

6. A blown film machine for use in the production process of express delivery bags according to claim 1, characterized in that: A lighting lamp (6) is installed on one side of the fixing frame (204), and the annular toothed plate (209) meshes with the gear (208).