Plastic film and plastic film production process

Abstract

The invention relates to the field of plastic film production, in particular to a plastic film and a plastic film production process. The plastic film and the plastic film production process have the beneficial effects that in the working process of producing and winding the plastic film, the working efficiency of variable-pitch cutting and winding for production and winding is conveniently improved. According to the technical scheme, the plastic film production device comprises a supporting frame, a rotating rod rotationally connected to the left side of the supporting frame and a power rod rotationally connected to the right side of the supporting frame, a winding roller II is fixedly connected to the middle of the rotating rod, and two winding rollers I are fixedly connected to the power rod; a concave frame is fixedly connected to the top of the supporting frame, a lifting frame is slidably connected to the concave frame, a cutting knife is fixedly connected to the bottom of the lifting frame, the movable end of an electric push rod is fixedly connected to the middle of the lifting frame, and the fixed end of the electric push rod is fixedly connected to the middle of the concave frame.

Description

Technical Field

[0001] The invention relates to the field of plastic film production, and more specifically to a plastic film and a plastic film production process. Background Art

[0002] Plastic film is a thin film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, which is widely used in packaging and coating. Plastic film occupies an increasingly large share in the market, especially in the fields of food, medicine, chemical industry, etc., such as beverage packaging, quick-frozen food packaging, steamed food packaging, etc.

[0003] In the prior art, in the processing and production process of plastic film, for example, a plastic film and its production process with application number 202411377365.6 can evenly extrude the plastic on a hollow flat plate to form a plastic film of uniform thickness, but it is not suitable for the production process of winding plastic film, so as to improve the work efficiency of variable-pitch cutting and winding of the production winding. Summary of the invention

[0004] The object of the present invention is to provide a plastic film and a plastic film production process, which has the beneficial effect of facilitating the improvement of the working efficiency of variable-pitch cutting and winding of the production winding during the working process of producing the wound plastic film.

[0005] The objective of the present invention is achieved through the following technical scheme: A plastic film production device comprises a support frame, a rotating rod rotatably connected to the left side of the support frame, and a power rod rotatably connected to the right side of the support frame, a winding roller II is fixedly connected to the middle of the rotating rod, two winding rollers I are fixedly connected to the power rod, a concave frame is fixedly connected to the top of the support frame, a lifting frame is slidably connected to the concave frame, a cutting knife is fixedly connected to the bottom of the lifting frame, a movable end of an electric push rod is fixedly connected to the middle of the lifting frame, and the fixed end of the electric push rod is fixedly connected to the middle of the concave frame.

[0006] The sharp surface of the cutting knife faces the winding roller II.

[0007] The front side of the support frame is fixedly connected to a side frame, the top of the side frame is fixedly connected to a raised frame, an H-shaped frame is slidably connected to the raised frame, the rear side of the H-shaped frame is fixedly connected to a transverse frame, the front and rear sides of the left side of the transverse frame are respectively fixedly connected to a sliding frame, the upper and lower sides of each sliding frame are respectively slidably connected to a right-angle frame, and each right-angle frame is fixedly connected to a pressing plate.

[0008] The two right-angle frames on each sliding frame are arranged in mirror image up and down.

[0009] Each of the pressing plates is respectively provided with a rubber pad.

[0010] A plastic film production process, the process comprising the following steps:

[0011] S1: clamping and unfolding the movable ends of the plastic film wound by the plastic film production device;

[0012] S2: while unfolding, cutting the stretched plastic film along the middle to separate it into two plastic films;

[0013] S3: stretching the cut and separated plastic films along the track curve trajectory and winding up the two plastic films respectively.

[0014] A plastic film comprises a polymer with polyethylene as a raw material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a partial structural schematic diagram of the support frame of the present invention;

[0017] Figure 2 It is a partial structural schematic diagram of the concave frame of the present invention;

[0018] Figure 3 It is a partial structural schematic diagram of the lifting frame of the present invention;

[0019] Figure 4 It is a partial structural schematic diagram of the cutting knife of the present invention;

[0020] Figure 5 It is a partial structural schematic diagram of the transverse shift frame of the present invention;

[0021] Figure 6 It is a partial structural schematic diagram of the H-shaped frame of the present invention;

[0022] Figure 7 It is a partial structural schematic diagram of the pressing plate of the present invention;

[0023] Figure 8 It is a partial structural schematic diagram of the mobile seat of the present invention;

[0024] Fig. 9 and 10 All of them are schematic diagrams of the overall structure of the present invention.

[0025] In the figure: support frame 101; power rod 102; winding roller I 103; rotating rod 104; winding roller II 105; concave frame 106; side frame 107; protruding frame 108; lifting frame 201; cutting knife 202; electric push rod 203; transverse frame 301; sliding frame 302; right-angle frame 303; pressing plate 304; H-shaped frame 305; rotating ring 306; screw 401; moving seat 402; support rod 403; sliding seat 404. DETAILED DESCRIPTION

[0026] A plastic film production device comprises a support frame 101, a rotating rod 104 rotatably connected to the left side of the support frame 101, and a power rod 102 rotatably connected to the right side of the support frame 101, a winding roller II 105 is fixedly connected to the middle of the rotating rod 104, two winding rollers I 103 are fixedly connected to the power rod 102, a concave frame 106 is fixedly connected to the top of the support frame 101, a lifting frame 201 is slidably connected to the concave frame 106, a cutting knife 202 is fixedly connected to the bottom of the lifting frame 201, a movable end of an electric push rod 203 is fixedly connected to the middle of the lifting frame 201, and the fixed end of the electric push rod 203 is fixedly connected to the middle of the concave frame 106.

[0027] This part is based on Figure 1-4 The working process expressed in 9 and 10 is: in the working process of producing and winding plastic film, in order to improve the working efficiency of variable-pitch cutting and winding of the produced winding, when in use, the produced plastic film is wound on the winding roller II 105 in the middle of the rotating rod 104, and one end of the plastic film is unfolded to the right. When unfolding, the electric push rod 203 is driven to make the lifting frame 201 located on the movable end of the electric push rod 203 move downward, so that the cutting knife 202 located under the lifting frame 201 is located in the middle of the traveling direction of the unfolded plastic film, so that the unfolded The plastic film is cut into two pieces with variable pitch and overlapped on two winding rollers Ⅰ103 on the power rod 102 respectively. The output shaft of a first motor is fixedly connected to the rear side of the power rod 102 through a coupling. The first motor is fixedly connected to the support frame 101 through bolts. The first motor is driven to rotate the power rod 102. When the power rod 102 rotates, the plastic film overlapped on the two winding rollers Ⅰ103 is wound. In the process of producing and winding plastic film, it is convenient to improve the work efficiency of variable pitch cutting and winding for production winding, and the structure is simple and easy to use.

[0028] The sharp surface of the cutting knife 202 faces the winding roller II 105 .

[0029] The front side of the support frame 101 is fixedly connected to a side frame 107, the top of the side frame 107 is fixedly connected to a raised frame 108, the raised frame 108 is slidably connected to an H-shaped frame 305, the rear side of the H-shaped frame 305 is fixedly connected to a transverse frame 301, the front and rear sides of the left side of the transverse frame 301 are respectively fixedly connected to a sliding frame 302, the upper and lower sides of each sliding frame 302 are respectively slidably connected to a right angle frame 303, and each right angle frame 303 is respectively fixedly connected to a pressing plate 304.

[0030] This part is based on Figure 1-7The working process expressed in 9 and 10 is: in order to improve the flatness of the plastic film unrolled from the winding roller II 105, thereby preventing the plastic film from wrinkling when the plastic film is cut by the cutting knife 202, when in use, the two movable ends of a two-way push rod are respectively fixedly connected to the two right-angle frames 303 on the same side by bolts, and the fixed ends of the two two-way push rods are respectively fixedly connected to the front and rear sides of the left side of the transverse frame 301, so that the plastic film is unrolled from the winding roller II 105, so that the two sides of the edge of the plastic film are overlapped respectively. On the two pressing plates 304 at the bottom, two bidirectional push rods are driven to make the two right-angle frames 303 move toward each other, so that the two pressing plates 304 on the same side clamp the two sides of the plastic film through their length direction, and then the transverse frame 301 relies on the H-shaped frame 305 to move laterally on the raised frame 108, so that while the cutting knife 202 is used for smooth cutting, it is moved and overlapped on the two winding rollers Ⅰ103, so as to perform automated winding work, reduce direct contact between manual labor and plastic film, and prevent the plastic film from being contaminated by dust.

[0031] The two right-angle brackets 303 on each sliding bracket 302 are arranged in mirror image up and down.

[0032] This part is based on Figure 1-7 The working process expressed in 9 and 10 is: the two right-angle frames 303 on each sliding frame 302 are mirror-imaged up and down, so as to facilitate the clamping and pressing work by the pressing plate 304 from the upper and lower surfaces of the plastic film.

[0033] A rubber pad is respectively disposed on each of the pressing plates 304 .

[0034] This part is based on Figure 1-7 The working process expressed in 9 and 10 is: a rubber pad is respectively provided on each pressing plate 304 to prevent the plastic film from being damaged and worn when the plastic film is clamped by each pressing plate 304.

[0035] The middle portion of the raised frame 108 is arched upward to form a semicircle.

[0036] This part is based on Figure 1-7 The working process expressed in 9 and 10 is: the middle part of the raised frame 108 is arched upward to form a semicircle, and the center point of the semicircle is on the same central axis as the power rod 102, so that when the transverse frame 301 moves on the raised frame 108 by relying on the H-frame 305, the clamped and stretched plastic film can be driven to move upward when passing through the power rod 102, bypassing the two winding rollers Ⅰ103. When the transverse frame 301 moves to the right side of the raised frame 108 by relying on the H-frame 305, the plastic film is overlapped on the two winding rollers Ⅰ103, and then the subsequent plastic film winding work is carried out.

[0037] The front side of the H-shaped frame 305 is fixedly connected with a rotating ring 306 , and the rotating ring 306 is rotatably connected to the middle part of the rear side of the sliding seat 404 .

[0038] The upper side of the side frame 107 is rotatably connected to a lead screw 401 , the middle part of the lead screw 401 is transmission-connected to a moving seat 402 , the upper side of the moving seat 402 is fixedly connected to a support rod 403 with a smooth surface, and the support rod 403 is slidably connected to the front side of the sliding seat 404 .

[0039] This part is based on Figure 1-10 The working process expressed therein is: the output shaft of the second motor is fixedly connected to the right side of the screw 401 through a coupling, the second motor is fixedly connected to the side frame 107 through bolts, and the second motor is driven to rotate the screw 401. When the screw 401 rotates, the moving seat 402 meshing with it for transmission connection moves laterally, so that the sliding seat 404 drives the rotating ring 306 on the rear side to be limited when the H-shaped frame 305 passes the raised frame 108, and when the H-shaped frame 305 passes the raised position in the middle of the raised frame 108, the sliding seat 404 performs an adaptive lifting movement on the support rod 403, thereby improving the stability of the overall device.

[0040] A plastic film production process, the process comprising the following steps:

[0041] S1: clamping and unfolding the movable ends of the plastic film wound by the plastic film production device;

[0042] S2: while unfolding, cutting the stretched plastic film along the middle to separate it into two plastic films;

[0043] S3: stretching the cut and separated plastic films along the track curve trajectory and winding up the two plastic films respectively.

[0044] A plastic film comprises a polymer with polyethylene as a raw material.

Claims

1. A plastic film production device, comprising a support frame (101), a rotating rod (104) rotatably connected to the left side of the support frame (101), and a power rod (102) rotatably connected to the right side of the support frame (101), characterized in that: The middle of the rotating rod (104) is fixedly connected to a winding roller II (105), the power rod (102) is fixedly connected to two winding rollers I (103), the top of the support frame (101) is fixedly connected to a concave frame (106), the concave frame (106) is slidably connected to a lifting frame (201), the bottom of the lifting frame (201) is fixedly connected to a cutting knife (202), the middle of the lifting frame (201) is fixedly connected to a movable end of an electric push rod (203), and the fixed end of the electric push rod (203) is fixedly connected to the middle of the concave frame (106).

2. A plastic film production device according to claim 1, characterized in that: The sharp surface of the cutting knife (202) faces the winding roller II (105).

3. A plastic film production device according to claim 1, characterized in that: The front side of the support frame (101) is fixedly connected to a side frame (107), the top of the side frame (107) is fixedly connected to a protruding frame (108), an H-shaped frame (305) is slidably connected to the protruding frame (108), the rear side of the H-shaped frame (305) is fixedly connected to a transverse frame (301), the front and rear sides of the left side of the transverse frame (301) are respectively fixedly connected to a sliding frame (302), the upper and lower sides of each sliding frame (302) are respectively slidably connected to a right angle frame (303), and each right angle frame (303) is respectively fixedly connected to a pressing plate (304).

4. A plastic film production device according to claim 3, characterized in that: The two right-angle frames (303) on each sliding frame (302) are arranged in mirror image up and down.

5. A plastic film production device according to claim 4, characterized in that: A rubber pad is respectively provided on each of the pressing plates (304).

6. A plastic film production device according to claim 5, characterized in that: The middle part of the raised frame (108) is arched upward to form a semicircle.

7. A plastic film production device according to claim 6, characterized in that: The front side of the H-shaped frame (305) is fixedly connected with a rotating ring (306), and the rotating ring (306) is rotatably connected to the middle part of the rear side of the sliding seat (404).

8. A plastic film production device according to claim 3, characterized in that: The upper side of the side frame (107) is rotatably connected to a lead screw (401), the middle part of the lead screw (401) is transmission-connected to a moving seat (402), the upper side of the moving seat (402) is fixedly connected to a support rod (403) with a smooth surface, and the support rod (403) is slidably connected to the front side of the sliding seat (404).

9. A plastic film production process, characterized in that: The process includes the following steps, S1: clamping and unfolding the movable ends of the plastic film wound by the plastic film production device; S2: while unfolding, cutting the stretched plastic film along the middle to separate it into two plastic films; S3: stretching the cut and separated plastic films along the track curve trajectory and winding up the two plastic films respectively.

10. A plastic film, characterized in that: Includes polymers based on polyethylene.

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