Stretching film production device

Abstract

The utility model discloses a stretch film production device which comprises a casting mechanism, a cooling mechanism and a winding mechanism, and the casting mechanism comprises a casting rack, a first melt extruder, a second melt extruder, a third melt extruder and a casting die head, the first melt extruder, the second melt extruder and the third melt extruder are mounted at the upper end of the casting rack side by side, and the casting die head is arranged on one side of the output end of the first melt extruder, one side of the output end of the second melt extruder and one side of the output end of the third melt extruder. The whole set of diaphragm manufacturing equipment is more compact, the occupied space is effectively reduced, three layers of diaphragms can be fused through the first melting extruder, the second melting extruder and the third melting extruder, and then the effect that different layers of the cast diaphragms are not communicated can be guaranteed; the film can be uniformly cooled and shaped through the first cooling roller and the second cooling roller, and the film at the manufacturing position can be stably wound through the winding mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film production, and particularly relates to a stretch film production device. Background Art

[0002] The stretch film, also known as LLDPE elastic film / packaging film, is a transparent, elastic, strong, non-toxic and harmless soft polyethylene plastic film, which meets the international environmental protection and health standards. The LLDPE stretch film has the advantages of toughness, impact resistance, transparency and self-adhesion. Whether it is used for collective packaging of products or goods pallets, it can prevent moisture, dust, reduce labor and improve efficiency, so as to protect products and reduce costs. However, in the production process of the stretch film, the raw materials of the stretch film are melted by an extruder, and the produced film is calendared and cooled by a calender, and then the film is wound up. Therefore, the equipment needs to occupy a large space and is inconvenient to use. Moreover, the film often has wrinkled edges, warping and uneven film thickness before single stretching. This results in a low final pass rate of the produced film and waste of raw materials, but the existing production line cannot solve these problems. Therefore, a stretch film production device is provided to solve the above problems. Content of the Utility Model

[0003] To solve the problems in the above background art, the technical solution adopted by the utility model to solve the technical problems is: a stretch film production device, which includes a calendaring mechanism, a cooling mechanism and a winding mechanism. The calendaring mechanism includes a calendaring frame, a first melting extruder, a second melting extruder, a third melting extruder and a calendaring die head. The first melting extruder, the second melting extruder and the third melting extruder are arranged side by side at the upper end of the calendaring frame. The calendaring die head is arranged on one side of the output ends of the first melting extruder, the second melting extruder and the third melting extruder. The cooling mechanism includes a cooling frame, a first cooling roller, a second cooling roller, a first flattening roller and a second flattening roller. The first cooling roller, the second cooling roller, the first flattening roller and the second flattening roller are all installed inside the cooling frame. The winding mechanism includes a winding frame, a guide roller assembly and a winding roller assembly. The guide roller assembly and the winding roller assembly are both installed on the winding frame.

[0004] As a preferred technical solution of the utility model, a first feed hopper is installed at the upper end of the first melting extruder, a second feed hopper is installed at the upper end of the second melting extruder, and a third feed hopper is installed at the upper end of the third melting extruder.

[0005] As a preferred technical solution of the utility model, automatic feeding machines are arranged at the tops of the first feed hopper, the second feed hopper and the third feed hopper. The material suction end of the automatic feeding machine is connected with a suction pipe.

[0006] As a preferred technical solution of the present utility model, the first cooling roller is directly below the casting die head, and the first flattening roller and the second flattening roller are respectively located on both sides of the second cooling roller.

[0007] As a preferred technical solution of the present utility model, the material guiding roller assembly includes a first material guiding roller, a second material guiding roller, a third material guiding roller, and a fourth material guiding roller. The first material guiding roller is installed at one end of the winding frame close to the cooling frame. The second material guiding roller is installed above the first material guiding roller on the winding frame. The third material guiding roller is installed at the top end of one side of the second material guiding roller on the winding frame. The fourth material guiding roller is installed at the top end of the winding frame close to the third material guiding roller.

[0008] As a preferred technical solution of the present utility model, the first material guiding roller and the second material guiding roller have the same size and specification, and the third material guiding roller and the fourth material guiding roller have the same size and specification.

[0009] As a preferred technical solution of the present utility model, the coil roller assembly includes a material conveying roller group, a coil cutting mechanism, a robotic arm telescopic cylinder, a robotic claw, and a winding roller. The material conveying roller group is installed inside the winding frame. The coil cutting mechanism is arranged on one side of the winding frame close to the discharging end of the material conveying roller group. The robotic arm telescopic cylinder is fixedly installed at the top end of the winding frame. The output end of the robotic arm telescopic cylinder is connected to the robotic claw, and the winding roller is connected through the robotic claw.

[0010] As a preferred technical solution of the present utility model, the number of the robotic arm telescopic cylinders and the robotic claws are both set to two, and the robotic arm telescopic cylinders and the robotic claws are both on the same side of the coil cutting mechanism.

[0011] As a preferred technical solution of the present utility model, the cooling frame is arranged between the casting frame and the winding frame, and a receiving groove is arranged on the lower side of one end of the winding frame where the winding roller is located.

[0012] The present utility model has the following advantages: The present utility model integrates the casting mechanism, the cooling mechanism, and the winding mechanism, thereby making a whole set of film-making equipment more compact and effectively reducing the occupied space.

[0013] The three-layer film can be fused through the first melting extruder, the second melting extruder, and the third melting extruder, so as to ensure different effects for different layers of the cast film. The film can be evenly cooled and shaped by the first cooling roller and the second cooling roller, and the produced film can be stably wound through the winding mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of another perspective of the preferred embodiment of the present utility model;

[0016] Figure 3 It is a schematic structural diagram of the casting mechanism of the preferred embodiment of the present utility model;

[0017] Figure 4 It is a schematic structural diagram of another perspective of the casting mechanism of the preferred embodiment of the present utility model;

[0018] Figure 5 It is a schematic structural diagram of the winding mechanism of the preferred embodiment of the present utility model;

[0019] Figure 6 It is a schematic structural diagram of the cooling mechanism of the preferred embodiment of the present utility model;

[0020] Figure 7 It is of the preferred embodiment of the present utility model Figure 5 Enlarged schematic diagram of Structure A.

[0021] Explanation of reference numerals: 1. Casting machine frame; 2. First melting extruder; 3. Second melting extruder; 4. Third melting extruder; 5. First feed hopper; 6. Second feed hopper; 7. First feed hopper; 8. Automatic feeding machine; 9. Casting die head; 10. Cooling machine frame; 11. First cooling roller; 12. Second cooling roller; 13. First flattening roller; 14. Second flattening roller; 15. Winding machine frame; 16. First guiding roller; 17. Second guiding roller; 18. Third guiding roller; 19. Fourth guiding roller; 20. Feeding roller group; 21. Coil cutting mechanism; 22. Mechanical arm telescopic cylinder; 23. Mechanical claw; 24. Winding roller. Detailed implementation manners

[0022] Next, the technical solutions of the present utility model will be described clearly and completely with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In order to more clearly understand the above objects, features, and advantages of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Please refer to Figures 1 - 7 , a stretch film production device of the present utility model includes: a casting mechanism, a cooling mechanism, and a winding mechanism. The casting mechanism includes a casting frame 1, a first melting extruder 2, a second melting extruder 3, a third melting extruder 4, and a casting die head 9. The first melting extruder 2, the second melting extruder 3, and the third melting extruder 4 are arranged side by side and installed on the upper end of the casting frame 1. The casting die head 9 is arranged on one side of the output ends of the first melting extruder 2, the second melting extruder 3, and the third melting extruder 4. The cooling mechanism includes a cooling frame 10, a first cooling roller 11, a second cooling roller 12, a first flattening roller 13, and a second flattening roller 14. The first cooling roller 11, the second cooling roller 12, the first flattening roller 13, and the second flattening roller 14 are all installed inside the cooling frame 10. The winding mechanism includes a winding frame 15, a guiding roller assembly, and a winding roller assembly. The guiding roller assembly and the winding roller assembly are both installed on the winding frame 15.

[0026] Combined with Figure 1 and Figure 3 As shown, a first feed hopper 5 is installed on the upper end of the first melting extruder 2, a second feed hopper 6 is installed on the upper end of the second melting extruder 3, a third feed hopper 7 is installed on the upper end of the third melting extruder 4. Automatic feeding machines 8 are arranged at the tops of the first feed hopper 5, the second feed hopper 6, and the third feed hopper 7. The suction end of the automatic feeding machine 8 is connected with a suction pipe. Thus, three-layer film sheets can be fused through the first melting extruder 2, the second melting extruder 3, and the third melting extruder 4, and different effects can be achieved for different layers of the cast film sheets. Combined with Figure 6 As shown, the first cooling roller 11 is directly below the casting die head 9. The first flattening roller 13 and the second flattening roller 14 are respectively located on both sides of the second cooling roller 12. The first cooling roller 11 and the second cooling roller 12 are used to cool and shape the cast film sheet, and the first flattening roller 13 and the second flattening roller 14 are used to flatten the surface of the film sheet.

[0027] Combined Figure 4 with Figure 5 as shown, wherein the material guiding roller assembly includes a first material guiding roller 16, a second material guiding roller 17, a third material guiding roller 18, and a fourth material guiding roller 19. The first material guiding roller 16 is installed at one end of the winding frame 15 close to the cooling frame 10. The second material guiding roller 17 is installed above the first material guiding roller 16 on the winding frame 15. The third material guiding roller 18 is installed at the top end of one side of the second material guiding roller 17 on the winding frame 15. The fourth material guiding roller 19 is installed at the top end of the winding frame 15 close to the third material guiding roller 18. The first material guiding roller 16 and the second material guiding roller 17 have the same size and specifications, and the third material guiding roller 18 and the fourth material guiding roller 19 have the same size and specifications. Thus, it is convenient to tension and guide the diaphragm through the first material guiding roller 16, the second material guiding roller 17, the third material guiding roller 18, and the fourth material guiding roller 19 to the material conveying roller group 20 after passing through the cooling mechanism.

[0028] Among them, the coiling roller assembly includes a material conveying roller group 20, a coiling and cutting mechanism 21, a robotic arm telescopic cylinder 22, a robotic claw 23, and a winding roller 24. The material conveying roller group 20 is installed inside the winding frame 15. The coiling and cutting mechanism 21 is arranged on one side of the winding frame 15 close to the discharging end of the material conveying roller group 20. The robotic arm telescopic cylinder 22 is fixedly installed at the top end of the winding frame 15. The output end of the robotic arm telescopic cylinder 22 is connected to the robotic claw 23. The winding roller 24 is connected through the robotic claw 23. The number of the robotic arm telescopic cylinder 22 and the robotic claw 23 is both set to two. The robotic arm telescopic cylinder 22 and the robotic claw 23 are both on the same side of the coiling and cutting mechanism 21. The cooling frame 10 is arranged between the casting frame 1 and the winding frame 15. A receiving groove is arranged on the lower side of one end of the winding frame 15 where the winding roller 24 is located. It is convenient to adjust the height of the robotic claw 23 through the robotic arm telescopic cylinder 22, and it is convenient to pick up and place the winding roller 24 through the robotic claw 23.

[0029] The working principle of a stretch film production device: First, the raw material particles required for production are correspondingly pumped into the first feed hopper 5, the second feed hopper 6, and the third feed hopper 7 through the automatic feeding machine 8, and the raw materials are melted and extruded into the casting die head 9 through the corresponding first melting and extruding machine 2, the second melting and extruding machine 3, and the third melting and extruding machine 4;

[0030] A diaphragm is cast through the casting die head 9. Then, the cast diaphragm first passes through the gap between the bottom end of the first cooling roller 11 and the second cooling roller 12, and then the passing diaphragm sequentially passes through the gap between the second cooling roller 12 and the first flattening roller 13 and the gap between the second cooling roller 12 and the second flattening roller 14;

[0031] The diaphragm cooled in Step 2 passes through the gap between the bottom of the first material guiding roller 16 and the second material guiding roller 17, and then passes through the third material guiding roller 18 and the fourth material guiding roller 19 in sequence. After bypassing the fourth material guiding roller 19, the diaphragm passes around the material feeding roller group 20. After bypassing the material feeding roller group 20, the diaphragm bypasses the coiling and cutting mechanism 21 and is wound around the winding roller 24.

[0032] When the diaphragm is wound on the winding roller 24 in Step 4, the coiling and cutting mechanism 21 is operated to cut the diaphragm, and a new diaphragm winding method is carried out.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0034] Other parts not described in detail in the present invention belong to the prior art, so they will not be elaborated here.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stretch film production device, characterized in that: include: The invention relates to a casting mechanism, a cooling mechanism and a winding mechanism, wherein the casting mechanism comprises a casting frame (1), a first melt extruder (2), a second melt extruder (3), a third melt extruder (4), and a casting die head (9), wherein the first melt extruder (2), the second melt extruder (3), and the third melt extruder (4) are installed side by side on the upper end of the casting frame (1), and the casting die head (9) is arranged at the output end of the first melt extruder (2), the second melt extruder (3), and the third melt extruder (4). On the side, the cooling mechanism includes a cooling frame (10), a first cooling roller (11), a second cooling roller (12), a first flattening roller (13), and a second flattening roller (14); the first cooling roller (11), the second cooling roller (12), the first flattening roller (13), and the second flattening roller (14) are all installed on the inner side of the cooling frame (10); the winding mechanism includes a winding frame (15), a material guide roller assembly, and a winding roller assembly; the material guide roller assembly and the winding roller assembly are both installed on the winding frame (15).

2. A stretch film production device according to claim 1, characterized in that: A first feed hopper (5) is installed at the upper end of the first melt extruder (2), a second feed hopper (6) is installed at the upper end of the second melt extruder (3), and a third feed hopper (7) is installed at the upper end of the third melt extruder (4).

3. A stretch film production device as claimed in claim 2, characterized in that: The tops of the first feed hopper (5), the second feed hopper (6) and the third feed hopper (7) are all provided with automatic feeders (8), and the extraction ends of the automatic feeders (8) are connected with extraction pipes.

4. A stretch film production device as claimed in claim 1, characterized in that: The first cooling roller (11) is directly opposite to the bottom of the casting die (9), and the first flattening roller (13) and the second flattening roller (14) are respectively located on both sides of the second cooling roller (12).

5. A stretch film production device as claimed in claim 1, characterized in that: The guide roller assembly comprises a first guide roller (16), a second guide roller (17), a third guide roller (18), and a fourth guide roller (19); the first guide roller (16) is installed on one end of the winding frame (15) close to the cooling frame (10); the second guide roller (17) is installed on the winding frame (15) above the first guide roller (16); the third guide roller (18) is installed on the top of the winding frame (15) on one side of the second guide roller (17); and the fourth guide roller (19) is installed on the top of the winding frame (15) close to the third guide roller (18).

6. A stretch film production device as claimed in claim 5, characterized in that: The first material guide roller (16) and the second material guide roller (17) have the same size and specifications, and the third material guide roller (18) and the fourth material guide roller (19) have the same size and specifications.

7. A stretch film production device as claimed in claim 1, characterized in that: The coiling roller assembly comprises a feed roller group (20), a coil cutting mechanism (21), a mechanical arm telescopic cylinder (22), a mechanical claw (23), and a winding roller (24); the feed roller group (20) is installed inside a winding frame (15); the coil cutting mechanism (21) is arranged on the winding frame (15) near the discharge end of the feed roller group (20); the mechanical arm telescopic cylinder (22) is fixedly installed on the top of the winding frame (15); the output end of the mechanical arm telescopic cylinder (22) is connected to the mechanical claw (23); and the winding roller (24) is connected via the mechanical claw (23).

8. A stretch film production device as claimed in claim 7, characterized in that: The number of the mechanical arm telescopic cylinder (22) and the number of the mechanical claw (23) are both two, and the mechanical arm telescopic cylinder (22) and the mechanical claw (23) are both located on the same side of the coil cutting mechanism (21).

9. A stretch film production device as claimed in claim 1, characterized in that: The cooling frame (10) is arranged between the casting frame (1) and the winding frame (15), and the winding frame (15) is provided with a material receiving trough at the lower side of one end of the winding roller (24).

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