A biodegradable plastic film blow molding machine film cutting device

Abstract

This utility model belongs to the field of biodegradable plastic film production technology, and relates to a film cutting device for a biodegradable plastic film blow molding machine, including a bracket, a tool fixing seat, a tool, and a limiting mechanism; a vertical plate and a horizontal bar form the bracket, the tool fixing seat is slidably mounted on the horizontal bar, and the tool is mounted on the tool fixing seat; the limiting mechanism is connected to the tool fixing seat through a limiting spring; two horizontal bars are arranged side by side, and the tool fixing seat is composed of a slider and a fixing bolt; the tool adopts an L-shaped blade, with its long side as the cutting edge and its short side as the mounting seat, and a film separator at the top of the cutting edge; the limiting mechanism includes a limiting spring, a limiting ring, and a limiting screw; after changing the film specification, this utility model only needs to adjust the position of the limiting ring and the extension of the spring to achieve rapid adjustment of the force on the tool, and the adjustment process is simple and fast. At the same time, when using the spring to stabilize the tool, it can make the tool more stable during the cutting process within a small range.

Description

Technical Field

[0001] This utility model belongs to the field of biodegradable plastic film production technology, specifically relating to a film cutting device for a biodegradable plastic film blow molding machine. Background Technology

[0002] Film blowing machines, used to produce films, use airflow to blow a cylindrical film prototype, which is then rolled by rollers into a double-layered, flat film. Films produced this way are typically used as thin films, therefore requiring the double-layered flat film to be cut into single-layered films of specific dimensions.

[0003] In existing technologies, a weight is used to pull the fixing seat of the cutter, so that the weight and the film pull on the cutter, thereby keeping the cutter in a relatively stable position and smoothly cutting the film. However, when it is necessary to adjust the specifications of the film, the weight needs to be controlled to avoid the weight being too heavy or too light, which would affect the force balance of the cutter. The process is cumbersome and it is difficult to quickly adjust the appropriate position of the cutter. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a film cutting device for a biodegradable plastic film blow molding machine.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A biodegradable plastic film blow molding machine cutting device includes a bracket, a cutter fixing seat, a cutter, and a limiting mechanism; the bracket includes a vertical plate and a horizontal bar, the cutter fixing seat is slidably mounted on the horizontal bar, the cutter is mounted on the cutter fixing seat, and the limiting mechanism is mounted on the inner side of the cutter fixing seat on the horizontal bar and is connected to the cutter fixing seat through a limiting spring.

[0007] Furthermore, the crossbar consists of two parallel crossbars positioned at the same height between the vertical plates.

[0008] Furthermore, the tool holder includes a slider and fixing bolts. The slider is divided into two parts and is respectively installed on two crossbars. The fixing bolts are two bolts installed between the sliders.

[0009] Furthermore, the cutting tool is an L-shaped blade, with the long side of the blade being the cutting edge and the short side being the mounting base. The tip of the cutting edge is a film separator, and the mounting base has screw holes corresponding to fixing bolts.

[0010] Furthermore, the limiting mechanism includes a limiting spring, a limiting ring, and a limiting screw. The limiting spring is coaxially mounted on the crossbar. One end of the limiting spring is installed on the outward end face of the limiting ring, and the other end is provided with a contact pad. The limiting ring is coaxially mounted on the inner side of the slider on the crossbar, and the limiting ring is fixed to the corresponding position on the crossbar by the limiting screw.

[0011] According to the above technical solution, the beneficial effects of this utility model are as follows: This utility model uses a limiting spring to limit the cutter. The limiting spring has an outward pushing force on the cutter, while the film pulls the blade inward, thereby using the blade to cut the film. After changing the film specifications, it is only necessary to adjust the position of the limiting ring and adjust the extension and contraction of the spring, thereby adjusting the pushing force on the cutter, realizing rapid adjustment of the force on the cutter. The adjustment process is simple and fast. At the same time, when using the spring to stabilize the cutter, it can make the cutter more stable during the cutting process within a small range. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the film cutting device in a biodegradable plastic film blow molding machine;

[0013] Figure 2 A schematic diagram of the blade fixing structure of the film cutting device in a blow molding machine for biodegradable plastic film;

[0014] Figure 3 This is a schematic diagram of the limiting mechanism of the film cutting device in a blow molding machine for biodegradable plastic film.

[0015] 1-Bracket; 11-Vertical plate; 12-Horizontal bar; 2-Cut tool holder; 21-Slider; 22-Fixing bolt; 3-Cut tool; 31-Blade edge; 32-Mounting base; 33-Film separator; 4-Limiting mechanism; 41-Limiting spring; 42-Limiting ring; 43-Limiting screw; 44-Contact pad. Detailed Implementation

[0016] To more clearly illustrate the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0017] See Figure 1-3 A biodegradable plastic film blow molding machine film cutting device includes a bracket 1, a cutter fixing seat 2, a cutter 3, and a limiting mechanism 4; the bracket 1 provides stable support to ensure stable operation of the film cutting device; the cutter fixing seat 2 is used to fix the cutter 3 and can slide on the crossbar 12 to adjust its position; the cutter 3 performs the cutting action; the limiting mechanism 4 controls the movement range of the cutter fixing seat 2 to prevent excessive sliding.

[0018] See Figure 1-3The support 1 includes a vertical plate 11 and a horizontal bar 12. The tool holder 2 is slidably mounted on the horizontal bar 12, and the tool 3 is mounted on the tool holder 2. The limiting mechanism 4 is mounted on the inner side of the tool holder 2 on the horizontal bar 12 and is connected to the tool holder 2 through a limiting spring 41. The vertical plate 11 serves as the vertical support of the support 1, providing stability to the overall structure. The horizontal bar 12 serves as the sliding track for the tool holder 2, ensuring that the tool 3 cuts in the appropriate position. The tool holder 2 is slidably mounted on the horizontal bar 12, allowing the position of the tool 3 to be adjusted to adapt to plastic films of different widths. The tool 3 is mounted on the tool holder 2, ensuring the stability of the tool 3 and guaranteeing the accuracy of the cutting process. The limiting mechanism 4 is mounted on the inner side of the tool holder 2 on the horizontal bar 12 and is connected through a limiting spring 41, providing elastic support for the tool holder 2. The limiting spring 41 applies an elastic force to the tool holder 2, balancing the tension of the film and achieving stable cutting.

[0019] See Figure 1-3 The crossbar 12 consists of two parallel crossbars at the same height between the vertical plates 11; the two parallel crossbars 12 improve the stability of the sliding of the tool fixing seat 2 and ensure the straightness of the cutting.

[0020] See Figure 1-3 The tool holder 2 includes a slider 21 and a fixing bolt 22. The slider 21 is divided into two parts and is respectively installed on two crossbars 12. The fixing bolt 22 consists of two bolts installed between the slider 21. The slider 21 cooperates with the crossbars 12 to realize the sliding function of the tool holder 2, which facilitates the adjustment of the position of the tool 3. The fixing bolt 22 is used to lock the position of the tool holder 2 to ensure stability during cutting.

[0021] See Figure 1-3 The blade 3 is an L-shaped blade, with its long side being the cutting edge 31 and its short side being the mounting base 32. The tip of the cutting edge 31 is a film separator 33. The mounting base 32 has screw holes corresponding to the fixing bolts 22. The L-shaped blade design enables the blade 3 to perform film separation and cutting functions. The cutting edge 31 performs the cutting operation of the plastic film. The mounting base 32 is used to fix the blade 3 on the blade fixing base 2. The film separator 33 separates the plastic film before cutting, making it easier to cut.

[0022] See Figure 1-3The limiting mechanism 4 includes a limiting spring 41, a limiting ring 42, and a limiting screw 43. The limiting spring 41 is coaxially mounted on the crossbar 12. One end of the limiting spring 41 is installed on the outward end face of the limiting ring 42, and the other end is provided with a contact pad 44. The limiting ring 42 is coaxially mounted inside the slider 21 on the crossbar 12. The limiting ring 42 is fixed to the corresponding position on the crossbar 12 by the limiting screw 43. The limiting spring 41 provides elastic force to keep the tool holder 2 stable during the cutting process. The limiting ring 42 cooperates with the limiting spring 41 to adjust the magnitude of the elastic force. The limiting screw 43 is used to fix the position of the limiting ring 42 to achieve precise adjustment of the elastic force. The contact pad 44 reduces wear and ensures uniform force transmission.

[0023] According to the above embodiments, the working process of this utility model is as follows:

[0024] The vertical plate 11 and horizontal bar 12 of the support 1 form a stable operating platform. The horizontal bar 12 consists of two parallel horizontal supports at the same height between the vertical plates 11, providing a sliding track for the tool holder 2. The tool holder 2 is mounted on the horizontal bar 12 via a slider 21, which can slide and adjust its position on the horizontal bar 12. The slider 21 is divided into two parts, which are respectively mounted on the two horizontal bars 12 and fixed by fixing bolts 22. The tool 3 uses an L-shaped blade and is mounted on the tool holder 2. The tip of the blade 31 is a film separator 33, used for preliminary film separation. The tool 3 is connected to the fixing bolt through the screw hole on the mounting base 32. 22. Connection and fixation: The limiting mechanism 4 is installed on the inner side of the cutter fixing seat 2 on the crossbar 12. The limiting spring 41 applies an outward pushing force to the cutter fixing seat 2, which interacts with the force of the film pulling the blade 31 inward to achieve the cutting of the film. The limiting ring 42 is fixed to the corresponding position of the crossbar 12 by the limiting screw 43. Adjusting the position of the limiting ring 42 can change the extension and contraction of the limiting spring 41, thereby adjusting the pushing force on the cutter 3. When changing the film specifications, only the position of the limiting ring 42 needs to be adjusted to quickly adjust the force on the cutter 3 and achieve stable cutting of films of different thicknesses or widths.

[0025] The above-disclosed embodiments of the present invention are only for illustrating the present invention. The preferred embodiments do not describe all details exhaustively, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A degradable plastic film blown film machine film cutting device, characterized in that: Includes a bracket (1), a tool holder (2), a tool (3), and a limiting mechanism (4); The bracket (1) includes a vertical plate (11) and a horizontal bar (12). The tool holder (2) is slidably mounted on the horizontal bar (12). The tool (3) is mounted on the tool holder (2). The limiting mechanism (4) is mounted on the inner side of the tool holder (2) on the horizontal bar (12) and is connected to the tool holder (2) by a limiting spring (41).

2. The degradable plastic film blown film cutting apparatus of claim 1, wherein: The crossbar (12) consists of two parallel horizontal supports at the same height between the vertical plates (11).

3. The degradable plastic film blown film cutting apparatus of claim 1, wherein: The tool holder (2) includes a slider (21) and a fixing bolt (22). The slider (21) is divided into two parts and is installed on two crossbars (12) respectively. The fixing bolt (22) consists of two bolts installed between the slider (21).

4. The degradable plastic film blown film cutting apparatus of claim 1, wherein: The cutting tool (3) is an L-shaped blade. The long side of the cutting tool (3) is the cutting edge (31), and the short side is the mounting base (32). The tip of the top of the cutting edge (31) is the film separator (33). The mounting base (32) has screw holes corresponding to the fixing bolts (22).

5. The degradable plastic film blown film cutting apparatus of claim 1, wherein: The limiting mechanism (4) includes a limiting spring (41), a limiting ring (42), and a limiting screw (43). The limiting spring (41) is coaxially mounted on the crossbar (12). One end of the limiting spring (41) is installed on the outward end face of the limiting ring (42), and the other end is provided with a contact pad (44). The limiting ring (42) is coaxially mounted on the inner side of the slider (21) on the crossbar (12). The limiting ring (42) is fixed to the corresponding position of the crossbar (12) by the limiting screw (43).

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