Polyester film cutting mechanism

Abstract

The utility model belongs to the technical field of film cutting, and particularly relates to a polyester film cutting mechanism which comprises a tool rest, a cutting assembly and a connecting frame, bottom plates are arranged below the two sides of the tool rest, the bottom plates are fixedly connected to the tool rest through elastic supporting plates, and ball gaskets are evenly distributed on the bottom plates. A sliding rod of the cutting assembly is slidably inserted into a tool rest, the lower end of the sliding rod is fixedly inserted into a tool apron on the upper portion of a cutting tool, a supporting spring arranged between the tool apron and the tool rest sleeves the sliding rod, a limiting rod is arranged on a rod body, located on the upper portion of the tool rest, of the sliding rod, and a connecting frame is fixedly connected to the tool rest. According to the film cutting device, the bottom plates are arranged on the two sides of the knife rest provided with the cutting knife, the knife rest and the elastic supporting plates are matched to push the bottom frame towards the two sides, the bottom frame can tension the cutting position of a film, the cutting knife can smoothly cut the film, the film is smoothly cut, it is guaranteed that a notch in the cutting position of the film is flat, and the cutting quality of the film is improved. And the film cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, in particular to a polyester film cutting mechanism. Background Art

[0002] Polyester film, also known as PET film for short, is characterized by high temperature resistance, good printing, easy processing, good voltage resistance and insulation. It is made of polyethylene terephthalate as raw material, extruded into thick sheets, and then biaxially stretched to form a film material.

[0003] The existing polyester film slitting equipment has insufficient tension when slitting and processing the polyester film, which leads to positional deviation during slitting and processing of the polyester film. This not only reduces the quality of the polyester film slitting process, but also makes it difficult for the slitting polyester film to meet the needs of the staff. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a polyester film cutting mechanism, which solves the problem that insufficient tension is caused during slitting and processing, resulting in positional deviation during slitting and processing of the polyester film, which not only reduces the quality of the slitting process of the polyester film, but also makes it difficult for the slitting polyester film to meet the needs of the staff.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A polyester film cutting mechanism comprises a knife frame, a cutting assembly and a connecting frame, bottom plates are arranged below both sides of the knife frame, the bottom plates are fixedly connected to the knife frame through elastic support plates, evenly distributed ball gaskets are arranged on the bottom plates, and a sliding rod of the cutting assembly is slidably inserted into the knife frame, the lower end of the sliding rod is fixedly inserted into the knife seat on the upper part of the cutting knife, a supporting spring arranged between the knife seat and the knife frame is sleeved on the sliding rod, a limiting rod is arranged on the rod body of the sliding rod located on the upper part of the knife frame, and the connecting frame is fixedly connected to the knife frame.

[0009] Furthermore, the second connecting portion that is bent upward and integrally provided on the side of the bottom plate is fixedly connected to the lower end of the elastic support plate, the upper end of the elastic support plate is fixedly connected to the first connecting portions that are bent downward and integrally provided on both sides of the tool holder, and an arc-shaped lip plate is integrally provided at the edge of the bottom plate, and the arc-shaped lip plates are distributed on the three sides of the bottom plate that are not connected to the elastic support plate, and the connecting frame is fixedly connected to the tool holder by bolts, and the lower part of the tool holder is fixedly connected with a reinforcing rib;

[0010] The bottom plate is provided with evenly distributed placement grooves, the ball washers are fixedly embedded in the placement grooves, and the balls placed on the ball washers are distributed at the lower part of the bottom plate.

[0011] Further, the sliding rod is slidably inserted into the sliding through hole provided on the tool holder, the lower end of the sliding rod is fixedly inserted into the plug hole provided on the tool holder, and a baffle is integrally provided on the upper part of the tool holder, the baffle abuts against the lower end of the support spring, the upper end of the support spring abuts against the lower surface of the tool holder, and both ends of the limit rod are fixedly connected to the sliding rod;

[0012] Both ends of the limit rod are integrally provided with open clamps, the open clamps are matched with the sliding rod, and anti-skid pads are fixedly connected at the contact position between the open clamps and the sliding rod.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a polyester film cutting mechanism, which has the following beneficial effects:

[0015] The utility model provides bottom plates on both sides of a knife frame on which a cutting knife is installed, and the bottom plates are pushed toward both sides by the cooperation of the knife frame and an elastic support plate, so that the bottom plates can tighten the film cutting part, so that the cutting knife can smoothly complete the cutting of the film, thereby enabling the film to be cut smoothly, ensuring the flatness of the incision at the film cutting part, and improving the quality of film cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the tool holder in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the cutting component in the utility model.

[0019] In the figure: 1. knife holder; 101. elastic support plate; 102. bottom plate; 103. reinforcing rib; 104. first connecting part; 105. second connecting part; 106. arc lip plate; 107. mounting groove; 2. cutting assembly; 201. cutting knife; 202. knife holder; 203. sliding rod; 204. limiting rod; 205. supporting spring; 206. baffle; 3. connecting frame; 4. ball gasket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the utility model proposes: a polyester film cutting mechanism, including a knife frame 1, a cutting assembly 2 and a connecting frame 3, bottom plates 102 are arranged below both sides of the knife frame 1, and the bottom plates 102 are fixedly connected to the knife frame 1 through elastic support plates 101, ensuring that when the knife frame 1 is pressed down during use, under the action of the downward pressure, the elastic support plates 101 will produce appropriate deformation and slide with the bottom plates 102 toward both sides of the knife frame 1, tightening the film at the contacting part of the knife frame 1, so that it can be cut smoothly, ensuring that the film cutting part is The flatness of the incision improves the quality of film cutting. The bottom plate 102 is provided with evenly distributed ball washers 4 to reduce the friction resistance of the bottom plate 102 sliding on the film, ensuring that the bottom plate 102 slides smoothly on the film, so that during the film cutting process, the cutting mechanism moves smoothly on the film to complete the film cutting, and the sliding rod 203 of the cutting assembly 2 is slidably plugged into the knife holder 1, and the lower end of the sliding rod 203 is fixedly plugged into the knife seat 202 on the upper part of the cutting knife 201, and the cutting knife 201 is stably installed by the cooperation of the knife seat 202 and the sliding rod 203 On the knife holder 1, it is ensured that during the downward pressing process of the knife holder 1, as the position of the knife holder 1 changes, the cutting knife 2021 can slide on the knife holder 1 through the sliding rod 203, and the position of the cutting knife 201 is changed, so that the cutting knife 201 can always contact the film, so as to complete the cutting of the film in the subsequent movement process. The support spring 205 arranged between the knife seat 202 and the knife holder 1 is sleeved on the sliding rod 203. During the movement of the cutting knife 201 toward the knife holder 1, the support spring 205 will be compressed. Under the support of the reverse force of the support spring 205, the cutting knife 201 can be moved to the film. The cutter 201 is stably in contact with the film to ensure smooth cutting of the film. The sliding rod 203 is located on the rod body of the upper part of the knife holder 1 and a limit rod 204 is arranged to prevent the sliding rod 203 from sliding off the knife holder 1 during the sliding process on the knife holder 1, ensuring that the two are stably matched together for use. In addition, a connecting frame 3 is fixedly connected to the knife holder 1, so that during use, the entire cutting mechanism can be stably installed on the driving device through the connecting frame 3, so that when cutting the film, the cutting mechanism is driven to move on the film to complete the cutting operation.

[0023] like Figure 1 and Figure 2 As shown, in some embodiments, the second connecting portion 105 integrally provided by bending upward on the side of the bottom plate 102 is fixedly connected to the lower end of the elastic support plate 101, and the upper end of the elastic support plate 101 is fixedly connected to the first connecting portions 104 integrally provided by bending downward on both sides of the tool holder 1. By utilizing the cooperation of the first connecting portion 104 and the second connecting portion 105, the elastic support plate 101 is stably connected between the tool holder 1 and the bottom plate 102, and an elastic connecting component is formed between the two. Therefore, when it is necessary to cut the film during use, the tool holder 1 is directly moved to make the bottom plate 102 contact the part of the film that needs to be cut, and then the tool holder 1 is pressed downward. Under the action of external force, the elastic support plate 101 will produce appropriate deformation and slide towards the two sides of the tool holder 1 with the bottom plate 102, so that the part of the film that needs to be cut is tensioned, and at the same time, the tool holder 1 is pressed downward. During the downward movement of the bottom plate 102, the cutting knife 201 moves with it and contacts the film, and then slides on the film along with the knife holder 1 to complete the cutting. The bottom plate 102 is integrally provided with an arc lip plate 106 at the edge thereof, and the arc lip plates 106 are distributed on the three sides of the bottom plate 102 that are not connected to the elastic support plate 101, so as to prevent the edge of the plate body from scratching the film during the sliding of the bottom plate 102 on the film, thereby improving the quality of film cutting. The connecting frame 3 is fixedly connected to the knife holder 1 by bolts, and the connecting frame 3 is stably installed on the knife holder 1. During use, the entire cutting mechanism is installed on the auxiliary driving device by connecting the connecting frame 3, so that when the film is cut, the cutting mechanism is driven to move on the film to complete the cutting operation. The lower part of the knife holder 1 is fixedly connected with a reinforcing rib 103 to improve the overall strength of the knife holder 1 and ensure stable use.

[0024] The bottom plate 102 is provided with evenly distributed mounting grooves 107, in which the ball gasket 4 is fixedly embedded, and the balls mounted on the ball gasket 4 are distributed at the lower part of the bottom plate 102, so as to facilitate the stable installation of the ball gasket 4 on the bottom plate 102, reduce the friction resistance of the bottom plate 102 sliding on the film, and enable the bottom plate 102 to slide smoothly on the film.

[0025] like Figure 1 and Figure 3As shown, in some embodiments, the sliding rod 203 is slidably inserted into the sliding through hole opened on the knife holder 1, so that the sliding rod 203 can slide up and down smoothly on the knife holder 1, so that the cutting knife 201 moves together, ensuring that the cutting knife 201 stably contacts the film and moves together with the knife holder 1 to complete the cutting of the film. The lower end of the sliding rod 203 is fixedly inserted into the insertion hole opened on the knife holder 202, so that the two can be stably connected together to ensure stable cooperation and use together. The sliding rod 203 is used to slide the cutting knife 201 on the knife holder 1, and the upper part of the knife holder 202 The baffle plate 206 is integrally provided, and the baffle plate 206 abuts against the lower end of the support spring 205, and the upper end of the support spring 205 abuts against the lower surface of the knife holder 1, ensuring that the support spring 205 is stably installed, providing a stable and effective supporting force for the knife seat 202, so that the cutting knife 201 can stably abut against the film, thereby cutting it, and both ends of the limiting rod 204 are fixedly connected to the sliding rod 203, which is convenient for limiting the sliding rod 203 on the knife holder 1, preventing the sliding rod 203 from sliding off the knife holder 1 during the up and down sliding process, and ensuring the stable cooperation of the two;

[0026] Both ends of the limit rod 204 are integrally provided with open clamps, which are arranged in coordination with the sliding rod 203. Anti-slip pads are fixedly connected at the contact portion between the open clamp and the sliding rod 203, so as to facilitate the stable installation of the limit rod 204 on the sliding rod 203, thereby preventing the sliding rod 203 from sliding off the tool holder 1, so that the entire cutting assembly 2 can be stably installed on the tool holder 1 for use.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A polyester film cutting mechanism, comprising a knife frame (1), a cutting assembly (2) and a connecting frame (3), characterized in that: Bottom plates (102) are provided below both sides of the tool holder (1), the bottom plates (102) are fixedly connected to the tool holder (1) via elastic support plates (101), evenly distributed ball washers (4) are arranged on the bottom plates (102), and a sliding rod (203) of the cutting assembly (2) is slidably plugged into the tool holder (1), the lower end of the sliding rod (203) is fixedly plugged into a knife seat (202) at the upper part of the cutting knife (201), a support spring (205) arranged between the knife seat (202) and the tool holder (1) is sleeved on the sliding rod (203), a limiting rod (204) is arranged on the rod body of the sliding rod (203) located at the upper part of the tool holder (1), and a connecting frame (3) is fixedly connected to the tool holder (1).

2. A polyester film cutting mechanism according to claim 1, characterized in that: The second connecting portion (105) is bent upwardly and integrally provided on the side of the bottom plate (102) and is fixedly connected to the lower end of the elastic support plate (101); the upper end of the elastic support plate (101) is fixedly connected to the first connecting portion (104) bent downwardly and integrally provided on both sides of the tool holder (1); and an arc-shaped lip plate (106) is integrally provided at the edge of the bottom plate (102); the arc-shaped lip plates (106) are distributed on three sides of the bottom plate (102) that are not connected to the elastic support plate (101); and the connecting frame (3) is fixedly connected to the tool holder (1) by bolts; and the lower part of the tool holder (1) is fixedly connected with a reinforcing rib (103).

3. A polyester film cutting mechanism according to claim 2, characterized in that: The bottom plate (102) is provided with evenly distributed placement grooves (107), the ball gasket (4) is fixedly embedded in the placement groove (107), and the balls placed on the ball gasket (4) are distributed at the lower part of the bottom plate (102).

4. A polyester film cutting mechanism according to claim 1, characterized in that: The sliding rod (203) is slidably inserted into a sliding through hole provided on the tool holder (1), the lower end of the sliding rod (203) is fixedly inserted into a plug hole provided on the tool seat (202), and a baffle (206) is integrally provided on the upper part of the tool seat (202), the baffle (206) abuts against the lower end of the support spring (205), the upper end of the support spring (205) abuts against the lower surface of the tool holder (1), and both ends of the limiting rod (204) are fixedly connected to the sliding rod (203).

5. A polyester film cutting mechanism according to claim 4, characterized in that: Both ends of the limit rod (204) are integrally provided with open clamps, the open clamps are arranged in coordination with the sliding rod (203), and a non-slip pad is fixedly connected at the contact portion between the open clamp and the sliding rod (203).

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