Plastic film and plastic film production process

Abstract

The invention relates to the field of plastic films, in particular to a plastic film and a plastic film production process, and the plastic film comprises a plastic film belt and reinforcing ridges arranged on the edges of the two sides of the plastic film belt. The production process comprises the following steps: S1, heating a plastic film raw material to a molten state, uniformly mixing, and adding into a hot box; s2, the round pipe is driven to rotate, so that when the round pipe passes through an outlet in the lower end of the hot box, a plastic film raw material in a molten state is evenly distributed on the surface of the round pipe; s3, along with rotation of the round pipe, the plastic film raw material in the molten state on the surface of the round pipe is cooled and formed and is separated from the surface of the round pipe when passing through the guide roller, and S4, the core pipe is fixed through the two conical heads, and the formed plastic film is wound and collected. The edge of the plastic film is reinforced, and meanwhile, the plastic film with the reinforced edge can be produced through the production device.

Description

Technical Field

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

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, which is widely used in agricultural covering, industrial, commercial and daily packaging. When the plastic film is used as a covering, its edges are generally fixed. However, since its edge position is not reinforced, it is very easy to be damaged, affecting the covering. Therefore, a plastic film with reinforcement at the edge and a process for producing a plastic film with reinforcement at the edge are needed. Summary of the invention

[0003] The object of the present invention is to provide a plastic film whose edges are reinforced, and at the same time, to provide a plastic film production process capable of producing a plastic film with reinforced edges by using a production device.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A plastic film comprises a plastic film strip and reinforcing edges arranged on both side edges of the plastic film strip.

[0006] A plastic film production device is used to process the plastic film, including a hot box with an outlet at the lower end, side rings are provided below both ends of the hot box, round tubes rotate inside the two side rings, two rib grooves are provided on the round tubes, support arms extend from the rear ends of the two side rings, two guide rollers rotate between the two support arms, two square rod racks slide through both ends of the two support arms, mounting plates are fixed at the upper ends of the two square rod racks, transmission wheels rotate on the two mounting plates, support shafts slide through the centers of the two transmission wheels, cone heads are fixed near the ends of the two support shafts, and springs I are provided between the two cone heads and the corresponding transmission wheels.

[0007] The two cone heads are located directly above the guide roller at the rear end, and springs II are provided between the two square rod frames and the two support arm frames respectively.

[0008] The front end of the heat box is rotated with an adjusting screw, the front end of the heat box is fitted and slid with a baffle, and the lower end of the baffle passes through the outlet of the heat box. The baffle is threadedly connected to the adjusting screw to adjust the distance between the baffle and the round tube.

[0009] A crossbeam I is fixed at the front ends of the two side rings, and a plurality of nozzles are installed on the crossbeam.

[0010] A crossbeam II is provided at the lower end of the two side rings, a column frame is penetrated by the crossbeam II, a sponge seat is fixed on the upper end of the column frame, a sponge strip is fixed on the upper end of the sponge seat, and a spring III is provided between the crossbeam II and the sponge seat to make the sponge strip press the round tube upward.

[0011] A drying device is fixed between the two support arms to dry the plastic film between the two guide rollers.

[0012] Semicircular plates are rotatably arranged at both ends of the circular tube, an inclined plate is fixed between the two semicircular plates, the two semicircular plates are fixedly connected to the cross beam I, and connecting pipes are arranged on the two semicircular plates.

[0013] A stirring frame is rotated in the hot box.

[0014] The production process using the production device comprises:

[0015] S1, heating the plastic film raw materials to a molten state and mixing them evenly, and then adding them into a hot box;

[0016] S2, driving the round tube to rotate so that when the round tube passes through the lower end outlet of the hot box, the surface of the round tube is evenly covered with molten plastic film raw materials;

[0017] S3. As the round tube rotates, the molten plastic film material on the surface of the round tube cools and takes shape, and separates from the surface of the round tube when passing through the guide roller.

[0018] S4. The core tube is fixed by two cone heads, and the formed plastic film is rolled and collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of plastic film;

[0020] Figure 2 and Figure 3 It is a structural schematic diagram of a plastic film production device;

[0021] Figure 4 It is a schematic diagram of the structure of the hot box and the side ring;

[0022] Figure 5 It is a schematic diagram of the structure of a circular tube;

[0023] Figure 6 It is a schematic diagram of the structure of the baffle;

[0024] Figure 7 It is a structural diagram of the column frame and the sponge seat;

[0025] Figure 8 It is a schematic diagram of the structure of the semicircular plate and the inclined plate;

[0026] Fig. 9 and Fig.10 It is a schematic diagram of the structure of the mounting plate, the square rod frame, and the cone head.

[0027] In the figure:

[0028] Plastic film strip 101; Reinforcement edge 102;

[0029] Heat box 201; adjusting screw 202; side ring 203; crossbeam 204; nozzle 205; crossbeam II 206; support arm 207; drying device 208; guide roller 209;

[0030] Circular tube 301; rib groove 302; baffle 303;

[0031] Column frame 401; sponge seat 402; spring III 403; sponge strip 404;

[0032] Semicircular plate 501; inclined plate 502;

[0033] Mounting plate 601; square rod frame 602; spring II 603; transmission wheel 604; support shaft 605; cone head 606; spring I 607. DETAILED DESCRIPTION

[0034] like Figure 1 As shown, the plastic film is described in detail:

[0035] A plastic film comprises a plastic film strip 101 and reinforcing edges 102 arranged on both side edges of the plastic film strip 101.

[0036] By providing reinforcing edges 102 on both sides of the plastic film strip 101, the reinforcing edges 102 can be fixed when the plastic film strip 101 is used for covering, thereby forming an overall fixation of the plastic film. At the same time, damage to the edge of the plastic film during fixing is avoided, thereby affecting the covering.

[0037] like Figure 1-10 As shown, the plastic film production device is described in detail:

[0038] A plastic film production device is used to process the plastic film, including a heat box 201 with an outlet at the lower end, side rings 203 are provided below both ends of the heat box 201, round tubes 301 rotate inside the two side rings 203, two rib grooves 302 are provided on the round tubes 301, support arms 207 extend from the rear ends of the two side rings 203, two guide rollers 209 rotate between the two support arms 207, two square rod frames 602 slide through both ends of the two support arms 207, mounting plates 601 are fixed on the upper ends of the two square rod frames 602, transmission wheels 604 rotate on the two mounting plates 601, support shafts 605 slide through the centers of the two transmission wheels 604, cone heads 606 are fixed near the ends of the two support shafts 605, and springs I 607 ​​are provided between the two cone heads 606 and the corresponding transmission wheels 604.

[0039] When in use, the plastic film raw material in a molten state and mixed evenly is added into the hot box 201; and the raw material is continuously heated by the hot box 201 to ensure that the raw material is always in a molten state, so that the raw material can flow out to the outer surface of the circular tube 301 through the outlet at the lower end of the hot box 201, and at the same time, the circular tube 301 is driven to rotate so that the outer surface of the circular tube 301 continuously passes through the outlet at the lower end of the hot box 201, so that the surface of the circular tube 301 is evenly distributed with the plastic film raw material in a molten state; as the circular tube 301 rotates, the plastic film raw material in a molten state on the surface of the circular tube 301 is gradually cooled and formed, and when passing through the guide roller 209, it is guided to the guide roller 209, so as to be separated from the surface of the circular tube 301; after passing through the two guide rollers 209, the plastic film is wound on the core tube fixed between the two cone heads 606, and the winding and collection of the plastic film is formed by the rotation of the core tube;

[0040] Among them, a first motor is installed on the mounting plate 601 to drive the corresponding transmission wheel 604, thereby driving the cone head 606 to rotate through the support shaft 605, thereby driving the core tube to rotate and complete the winding; when installing or removing the core tube, the two cone heads 606 are pushed to both sides so that the cone heads 606 overcome the elastic force of the spring I 607 ​​and move away from the core tube, thereby removing or installing the core tube;

[0041] A second motor is installed on one of the support arms 207 to drive the guide roller 209 at the front end, and then the guide roller 209 drives the round tube 301 to rotate.

[0042] Further:

[0043] The two cone heads 606 are located directly above the guide roller 209 at the rear end, and springs II 603 are provided between the two square rod frames 602 and the two support arm frames 207 respectively.

[0044] The elastic force of spring II 603 will push the square rod frame 602 and the mounting plate 601 downward, and then the core tube between the two cone heads 606 will move downward and press against the guide roller 209 at the rear end, so that the wound plastic film is always pressed between the core tube and the guide roller 209 at the rear end, avoiding the scattered rolled plastic film and at the same time, being able to adapt to the increase in the diameter of the plastic film roll.

[0045] Further:

[0046] The front end of the heat box 201 is rotated with an adjusting screw 202, and the front end of the heat box 201 is fitted and slid with a baffle 303, and the lower end of the baffle 303 passes through the outlet of the heat box 201. The baffle 303 is threadedly connected to the adjusting screw 202 for adjusting the distance between the baffle 303 and the round tube 301.

[0047] Among them, the outlet at the lower end of the heat box 201 is located in a position just above and slightly forward of the circular tube 301, so that a smaller V-shaped groove is formed between the baffle 303 passing through the outlet and the circular tube 301. The raw material is stored in the V-shaped groove, and the thickness of the raw material coated on the circular tube 301 is controlled by the distance between the baffle 303 and the circular tube 301, which becomes the thickness of the plastic film, thereby achieving the adjustment of the thickness of the plastic film.

[0048] Further:

[0049] A crossbeam I 204 is fixed to the front ends of the two side rings 203 , and a plurality of nozzles 205 are mounted on the crossbeam 204 .

[0050] By connecting multiple nozzles 205 to the cooling water supply system, cooling water is sprayed onto the raw material coated on the surface of the round tube 301 through the multiple nozzles 205, thereby cooling the raw material, so that the raw material is quickly cooled and formed into a plastic film, and then ensured to be separated from the round tube 301 at the guide roller 209.

[0051] like Figure 7 As shown:

[0052] A crossbeam II 206 is provided at the lower end of the two side rings 203, and a column frame 401 is penetrated by the crossbeam II 206. A sponge seat 402 is fixed to the upper end of the column frame 401, and a sponge strip 404 is fixed to the upper end of the sponge seat 402. A spring III 403 is provided between the crossbeam II 206 and the sponge seat 402 to make the sponge strip 404 press the circular tube 301 upward.

[0053] By providing the sponge strip 404, the outer surface of the plastic film formed on the round tube 301 can be wiped, so that the cooling water retained thereon can be wiped off, thereby ensuring that the outer surface of the plastic film is dry.

[0054] Further:

[0055] A drying device 208 is fixed between the two support arms 207 to dry the plastic film between the two guide rollers 209 .

[0056] The plastic film after wiping is dried by the drying device 208, so as to further ensure that the outer surface of the plastic film is dry.

[0057] like Figure 8 As shown:

[0058] Semicircular plates 501 are rotatably mounted at both ends of the circular tube 301 , an inclined plate 502 is fixed between the two semicircular plates 501 , the two semicircular plates 501 are fixedly connected to the cross beam Ⅰ204 , and connecting pipes are disposed on the two semicircular plates 501 .

[0059] By setting the two semicircular plates 501 and the inclined plate 502, a coolant tank is isolated inside the round tube 301, so that the raw material on the surface of the round tube 301 can be cooled inside the round tube 301, further improving the cooling and molding efficiency of the raw material;

[0060] Through the setting of the connecting pipe, it can be connected to the coolant supply system, so that the coolant in the coolant tank circulates and ensures the cooling effect.

[0061] Further:

[0062] By rotating a stirring frame in the hot box 201, the fluidity of the raw materials in the hot box 201 is ensured, and the raw materials are convenient to flow out through an outlet.

[0063] like Figure 1-10 As shown:

[0064] The production process using the production device comprises:

[0065] S1, heating the plastic film raw material to a molten state and mixing it evenly, and then adding it into the hot box 201;

[0066] S2, driving the circular tube 301 to rotate, so that when the circular tube 301 passes through the lower end outlet of the heat box 201, the surface of the circular tube 301 is evenly distributed with the molten plastic film raw material;

[0067] S3, as the round tube 301 rotates, the molten plastic film material on the surface of the round tube 301 cools and takes shape, and separates from the surface of the round tube 301 when passing through the guide roller 209.

[0068] S4. The core tube is fixed by two cone heads 606, and the formed plastic film is rolled and collected.

Claims

1. A plastic film, characterized in that: The invention comprises a plastic film strip (101) and reinforcing edges (102) arranged on the edges of both sides of the plastic film strip (101).

2. A plastic film production device for processing the plastic film according to claim 1, characterized in that: The invention comprises a heat box (201) with an outlet at the lower end, side rings (203) are provided below both ends of the heat box (201), round tubes (301) are rotated in the two side rings (203), two rib grooves (302) are provided on the round tubes (301), support arms (207) are extended from the rear ends of the two side rings (203), two guide rollers (209) are rotated between the two support arms (207), and sliding rollers (209) are provided at both ends of the two support arms (207). There are two square rod frames (602), the upper ends of the two square rod frames (602) are fixed with mounting plates (601), the two mounting plates (601) are both rotatably provided with transmission wheels (604), the centers of the two transmission wheels (604) are penetrated by support shafts (605) for limited sliding, the near ends of the two support shafts (605) are both fixed with cone heads (606), and springs I (607) are provided between the two cone heads (606) and the corresponding transmission wheels (604).

3. A plastic film production device according to claim 1, characterized in that: The two cone heads (606) are located directly above the guide roller (209) at the rear end, and springs II (603) are provided between the two square rod frames (602) and the two support arm frames (207) respectively.

4. A plastic film production device according to claim 1, characterized in that: The front end of the heat box (201) is provided with an adjusting screw (202) for rotation, the front end of the interior of the heat box (201) is provided with a baffle (303) for sliding fit, and the lower end of the baffle (303) passes through the outlet of the heat box (201), and the baffle (303) is threadedly connected to the adjusting screw (202) for adjusting the distance between the baffle (303) and the round tube (301).

5. A plastic film production device according to claim 1, characterized in that: A crossbeam I (204) is fixed to the front ends of the two side rings (203), and a plurality of spray heads (205) are mounted on the crossbeam (204).

6. A plastic film production device according to claim 5, characterized in that: A crossbeam II (206) is provided at the lower ends of the two side rings (203), a column frame (401) is passed through the crossbeam II (206), a sponge seat (402) is fixed at the upper end of the column frame (401), a sponge strip (404) is fixed at the upper end of the sponge seat (402), and a spring III (403) is provided between the crossbeam II (206) and the sponge seat (402) to enable the sponge strip (404) to press the circular tube (301) upwards.

7. A plastic film production device according to claim 6, characterized in that: A drying device (208) is fixed between the two support arms (207) to dry the plastic film between the two guide rollers (209).

8. A plastic film production device according to claim 1, characterized in that: Semicircular plates (501) are rotatably disposed at both ends of the circular tube (301), an inclined plate (502) is fixed between the two semicircular plates (501), the two semicircular plates (501) are fixedly connected to the crossbeam I (204), and connecting pipes are disposed on the two semicircular plates (501).

9. A plastic film production device according to claim 1, characterized in that: A stirring frame is rotated inside the hot box (201).

10. A production process using the production device according to any one of claims 1 to 9, characterized in that: include S1, heating the plastic film raw material to a molten state and mixing it evenly, and then adding it into a hot box (201); S2, driving the circular tube (301) to rotate so that when the circular tube (301) passes through the lower end outlet of the hot box (201), the surface of the circular tube (301) is evenly distributed with the plastic film raw material in a molten state; S3, as the round tube (301) rotates, the molten plastic film material on the surface of the round tube (301) is cooled and formed, and is separated from the surface of the round tube (301) when passing through the guide roller (209). S4. The core tube is fixed by two cone heads (606), and the formed plastic film is rolled and collected.

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