A cooling device for film production

Abstract

This utility model discloses a cooling device for film production, relating to the field of film cooling technology. It includes two side plates, fixed together by a crossbeam. From bottom to top, the two side plates are equipped with a first cooling roller, a second cooling roller, and a third cooling roller. A lifting assembly is installed at both ends of the third cooling roller. A first drive assembly is installed at one end of the second cooling roller. The lifting assembly includes an adjusting cylinder with a fixing block fixed to its cylinder rod. Both ends of the third cooling roller are connected to the fixing block via bearings with seats. In this utility model, when the film produced by the calender is pulled out, it first passes through two flat rollers, then around a transition roller, and then, in an S-shape, winds from the bottom of the first cooling roller to the top of the second cooling roller. The first drive assembly drives the third cooling roller to rotate, and then, with the cooperation of the second cooling roller, the cooled film is pulled out, thus completing the film cooling process.

Description

Technical Field

[0001] This utility model specifically relates to the field of thin film cooling technology, and more specifically to a cooling device for thin film production. Background Technology

[0002] In the plastic film production process, cooling equipment is a key component that determines the film forming quality, physical properties, and production efficiency. Its core function is to rapidly and uniformly cool the high-temperature molten film (typically between 150-300℃) extruded from the extruder die to the setting temperature, thereby fixing the film's dimensions, structure, and properties.

[0003] Chinese Patent Application No. 202021787063.3 discloses a PVC film cooling roller, including a mechanism box. A first box and a second box are fixedly connected to the upper surface of the mechanism box. A roller body is provided above the mechanism box. A circulation cavity is opened inside the roller body. A rotating shaft is fixedly connected to both the left and right ends of the roller body. A connecting pipe is fixedly connected to the inner ring of each rotating shaft. The ends of the two connecting pipes that are close to each other are fixedly connected to the left and right ends of the circulation cavity, respectively. Sealed bearings are fixedly embedded on the left side of the first box and the right side of the second box.

[0004] The cooling device in the aforementioned patent has only one cooling roller. When this device is applied to film production equipment, the film and the cooling roller are in line contact. The contact area between the cooling roller and the film is small, which cannot effectively improve the cooling effect of the film. Utility Model Content

[0005] The purpose of this utility model is to provide a cooling device for film production, which is equipped with three cooling rollers, one of which is a power roller for transporting the film, and the other two are main cooling rollers. The wrap angle between the film and the two main cooling rollers is greater than 120 degrees, which provides a large contact area and good cooling effect; thereby solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cooling device for thin film production, comprising:

[0008] Side panels, two side panels are provided, and the two side panels are fixed together by a crossbeam;

[0009] The two side panels are provided with a first cooling roller, a second cooling roller, and a third cooling roller from bottom to top; a lifting assembly is installed at both ends of the third cooling roller; a first driving assembly is installed at one end of the second cooling roller.

[0010] The lifting assembly includes an adjusting cylinder, on which a fixing block is fixed;

[0011] The third cooling roller is connected to the fixed block at both ends by bearings with mounting brackets.

[0012] As a further explanation of this utility model, guide rods are also fixed at both ends of the fixing block; the upper end of the guide rod is slidably connected to the cylinder seat;

[0013] The adjusting cylinder is fixed on the cylinder seat, and the cylinder seat is fixed to the inside of the side plate by bolts.

[0014] As a further explanation of this utility model, two flat rollers are also installed above the two side uprights via bearings, and a transition roller is also provided on the side near the second cooling roller.

[0015] As a further explanation of this utility model, the two lifting components are also provided with outer shells, which are fixed to the two side plates.

[0016] As a further explanation of this utility model, it also includes a frame body located on one side of the side plate. The frame body has a winding wheel inside, and both ends of the winding wheel are connected to the frame body through bearings with seats. One end of the winding wheel extends to the outside of the frame body and is connected to the second drive assembly.

[0017] As a further explanation of this utility model, the first cooling roller, the second cooling roller and the third cooling roller are all connected to the cooling water pipe through a rotary joint, and the cooling water pipe is connected to the water cooling equipment.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, when the equipment is used in a film extrusion production line, the equipment is located in the subsequent process of the calender. When the film produced by the calender is pulled out, it first passes through two flat rollers, then around the transition roller, and then from the bottom of the first cooling roller in an S-shape to the top of the second cooling roller. The first drive assembly drives the third cooling roller to rotate, and then, with the cooperation of the second cooling roller, the cooled film is pulled out; thus completing the cooling process of the film.

[0020] 2. In this utility model, the third cooling roller serves as the power roller to transport the film, while the first and second cooling rollers are the main cooling rollers; the wrap angle between the film and the two main cooling rollers is greater than 120 degrees, resulting in a larger contact area and better cooling effect;

[0021] 3. In this utility model, when the cylinder rod of the adjusting cylinder extends or retracts, the fixed block drives the third cooling roller to move up and down, thereby adjusting the gap between the second and third cooling rollers so as to enable the transmission of films of different thicknesses. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This utility model Figure 1 Another perspective illustration.

[0024] Figure 3 This utility model Figure 1 The main view.

[0025] Figure 4 This utility model Figure 1 A partial structural diagram.

[0026] Figure 5 This utility model Figure 3 A schematic diagram of the internal structure.

[0027] Figure 6 This utility model Figure 5 A magnified view of a portion of the image.

[0028] In the diagram: 1-side upright plate, 2-flat roller, 3-transition roller, 4-first cooling roller, 5-second cooling roller, 6-third cooling roller, 7-lifting assembly, 8-outer shell, 9-frame body, 10-winding wheel, 11-controller, 12-first drive assembly, 13-second drive assembly;

[0029] 71-Adjusting cylinder, 72-Cylinder seat, 73-Fixing block, 74-Guide rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-6 In this embodiment of the present invention, a cooling device for film production includes two side plates 1, which are fixed together by a crossbeam; two flat rollers 2 are also installed above the two side plates 1 by bearings, and a transition roller 3 is also provided on the side near the second cooling roller 5.

[0032] The two side panels 1 are provided with a first cooling roller 4, a second cooling roller 5 and a third cooling roller 6 from bottom to top; a lifting component 7 is installed at both ends of the third cooling roller 6; a first driving component 12 is installed at one end of the second cooling roller 5.

[0033] The lifting assembly 7 includes an adjusting cylinder 71, on which a fixing block 73 is fixed;

[0034] The third cooling roller 6 is connected to the fixed block 73 at both ends by bearings with seats.

[0035] By adopting the above technical solution, when the equipment is used in the film extrusion production line, it is located in the subsequent process of the calender. When the film produced by the calender is pulled out, it first passes through two flat rollers 2, then around the transition roller 3, and then from the bottom of the first cooling roller 4 in an S-shape to the top of the second cooling roller 5. The first drive component 12 drives the third cooling roller 6 to rotate, and then, with the cooperation of the second cooling roller 5, the cooled film is pulled out; thus completing the cooling process of the film.

[0036] It should be noted that the third cooling roller 6 acts as a power roller to transport the film, while the first cooling roller 4 and the second cooling roller 5 are the main cooling rollers. The wrap angle between the film and the two main cooling rollers is greater than 120 degrees, resulting in a large contact area and good cooling effect.

[0037] In this embodiment, guide rods 74 are also fixed at both ends of the fixing block 73; the upper end of the guide rod 74 is slidably connected to the cylinder seat 72.

[0038] The adjusting cylinder 71 is fixed on the cylinder seat 72, and the cylinder seat 72 is fixed to the inner side of the side plate 1 by bolts.

[0039] By adopting the above technical solution, when the cylinder rod of the cylinder 71 is extended or retracted, the third cooling roller 6 is driven to move up and down through the fixed block 73, thereby realizing the adjustment of the gap between the second cooling roller 5 and the third cooling roller 6, so as to enable the transmission of films of different thicknesses.

[0040] The guide rod 74 improves the stability of the third cooling roller 6 during adjustment.

[0041] In this embodiment, the outer side of the two lifting components 7 is also provided with a housing 8, and the housing 8 is fixed to the two side uprights 1.

[0042] In this embodiment, a frame body 9 is also provided on one side of the side plate 1. A winding wheel 10 is provided on the inner side of the frame body 9. The two ends of the winding wheel 10 are connected to the frame body 9 through bearings with seats, and one end of the winding wheel 10 extends to the outside of the frame body 9 and is connected to the second drive assembly 13.

[0043] By adopting the above technical solution, the second drive component 13 drives the winding wheel 10 to rotate, and the winding wheel 10 is used to wind up the cooled film.

[0044] In this embodiment, the first cooling roller 4, the second cooling roller 5, and the third cooling roller 6 are all connected to cooling water pipes via rotary joints, and the cooling water pipes are connected to water-cooling equipment.

[0045] The rotary joint is designed to ensure that water can enter the cooling roller normally when it rotates, thus ensuring the cooling effect of the cooling roller on the film.

[0046] The working principle of this utility model is as follows: When the equipment is used in a film extrusion production line, it is located in the subsequent process of the calender. When the film produced by the calender is pulled out, it first passes through two flat rollers 2, then around the transition roller 3, and then from the bottom of the first cooling roller 4 in an S-shape to the top of the second cooling roller 5. The first drive assembly 12 drives the third cooling roller 6 to rotate, and then, with the cooperation of the second cooling roller 5, the cooled film is pulled out; thus completing the cooling process of the film.

[0047] The third cooling roller 6 serves as a power roller to transport the film, while the first cooling roller 4 and the second cooling roller 5 are the main cooling rollers. The wrap angle between the film and the two main cooling rollers is greater than 120 degrees, resulting in a large contact area and good cooling effect.

[0048] When the cylinder rod of the cylinder 71 is extended or retracted, the third cooling roller 6 is moved up and down through the fixed block 73, thereby adjusting the gap between the second cooling roller 5 and the third cooling roller 6 so as to transport films of different thicknesses.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cooling device for thin film production, characterized in that: include Side uprights (1), there are two side uprights (1), and the two side uprights (1) are fixed together by a crossbeam; The two side panels (1) are provided with a first cooling roller (4), a second cooling roller (5) and a third cooling roller (6) from bottom to top; a lifting assembly (7) is installed at both ends of the third cooling roller (6); a first driving assembly (12) is installed at one end of the second cooling roller (5). The lifting assembly (7) includes an adjusting cylinder (71) with a fixing block (73) fixed on the cylinder rod of the adjusting cylinder (71). The third cooling roller (6) is connected to the fixed block (73) at both ends by bearings with seats.

2. The cooling device for thin film production according to claim 1, characterized in that: The fixed block (73) is also fixed with guide rods (74) at both ends; the upper end of the guide rod (74) is slidably connected to the cylinder seat (72); The adjusting cylinder (71) is fixed on the cylinder seat (72), and the cylinder seat (72) is fixed to the inside of the side plate (1) by bolts.

3. The cooling device for thin film production according to claim 1, characterized in that: Two flat rollers (2) are also installed above the two side plates (1) via bearings, and a transition roller (3) is also provided on the side near the second cooling roller (5).

4. The cooling device for thin film production according to claim 3, characterized in that: The two lifting components (7) are also provided with outer shells (8), and the outer shells (8) are fixed to the two side panels (1).

5. The cooling device for thin film production according to claim 1, characterized in that: It also includes a frame body (9) located on one side of the side plate (1). The frame body (9) has a winding wheel (10) inside. The two ends of the winding wheel (10) are connected to the frame body (9) through bearings with seats, and one end extends through to the outside of the frame body (9) and is connected to the second drive assembly (13).

6. The cooling apparatus for thin film production according to claim 1, characterized in that: The first cooling roller (4), the second cooling roller (5) and the third cooling roller (6) are all connected to the cooling water pipe through a rotary joint, and the cooling water pipe is connected to the water cooling equipment.

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