Rapid cooling roller device for PLA film production

Abstract

The utility model particularly relates to the technical field of film production, and discloses a quick cooling roller device for PLA film production, which comprises a workbench, two cooling roller shafts are rotatably connected in the workbench, cylinders are fixedly arranged on the side walls, close to the two cooling roller shafts, of the workbench, and the output ends of the cylinders penetrate through the cylinders and are provided with cleaning components. The cleaning assembly comprises a mounting base fixedly arranged at the output end of the air cylinder, clamping blocks are clamped to the side walls, close to the cooling roller shafts, of the mounting base, and cleaning brushes are fixedly arranged at the ends of the clamping blocks. The air cylinder and the cleaning assembly are arranged, the cleaning assembly comprises the installation base fixedly arranged at the output end of the air cylinder, the side wall of the installation base is in an arc shape and is matched with the outer size of the cooling roller shaft, and the installation base can be pushed to move horizontally by starting the air cylinder. Condensate water and other impurities on the surface of the cooling roller shaft are adsorbed by pushing the cleaning brush to uniformly wipe and adsorb, so that pollution on the surface of the cooling roller shaft is reduced, and the film cooling forming quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of film production, and particularly relates to a rapid cooling roller device for PLA film production. Background Art

[0002] Polylactic acid (PLA) is a new type of bio-based and renewable biodegradable material, made from starch raw materials from renewable plant resources (such as corn, cassava, etc.). Starch raw materials are saccharified to obtain glucose, which is then fermented with glucose and certain strains of bacteria to produce high-purity lactic acid, and then polylactic acid of a certain molecular weight is synthesized by chemical synthesis. PLA has good biodegradability. After use, PLA film can be completely degraded by microorganisms in nature under specific conditions, and finally produces carbon dioxide and water, which does not pollute the environment and is very beneficial to environmental protection. In the production process of PLA film, cooling rollers are needed to cool the film to reduce irregular deformation caused by shrinkage of PLA material during cooling when the film is rolled, and to improve the quality of film forming and rolling.

[0003] The existing rapid cooling roller device for PLA film production usually uses cooling water to inject into the interior of the cooling roller for cooling. The surface temperature of the cooling roller is low, which may cause water vapor in the air to condense onto the surface of the cooling roller, resulting in surface contamination of the cooling roller, thereby affecting the quality of the cooling film of the cooling roller. Utility Model Content

[0004] The utility model provides a rapid cooling roller device for PLA film production, aiming to solve the problem that the existing rapid cooling roller device for PLA film production usually adopts cooling water to be injected into the interior of the cooling roller for cooling and lowering the temperature, and the surface temperature of the cooling roller is low, which may cause water vapor in the air to condense onto the surface of the cooling roller, thereby causing contamination of the cooling roller surface, thereby affecting the quality of the cooling film of the cooling roller.

[0005] The utility model is implemented as follows: a rapid cooling roller device for PLA film production comprises a workbench, wherein the workbench is internally rotatably connected to two cooling roller shafts, cylinders are fixedly arranged on the side walls of the workbench close to the two cooling roller shafts, the output ends of the cylinders are penetrated by the cylinders and are provided with cleaning components, the cleaning components comprise mounting seats fixedly arranged on the output ends of the cylinders, the mounting seats are clamped with clamping blocks on the side walls close to the cooling roller shafts, cleaning brushes are fixedly arranged on the ends of the clamping blocks, and two communicating vessels are fixedly arranged on the side walls of the workbench away from the cylinders for the ends of the cylinders to be plugged in and rotated.

[0006] Preferably, support legs are fixedly provided at the four corner positions of the bottom end of the workbench, and the bottom ends of the support legs are flush for support, thereby improving the stability of the workbench support.

[0007] Preferably, two groups of limiting rollers are rotatably connected to the inner side walls of the workbench near the two cooling roller shafts, and the two groups of limiting rollers are flush with the top and bottom ends of the cooling roller shafts in turn, thereby improving the stability of film transportation.

[0008] Preferably, two servo motors are fixedly mounted on the side wall of the workbench close to the cylinder, and the output ends of the two servo motors are fixedly mounted on the ends of the cooling roller shaft, thereby improving the rotation efficiency of the cooling roller shaft.

[0009] Preferably, a water tank is fixedly provided on the top of the workbench, and a circulating pump is fixedly provided on the surface of the workbench close to the water tank. A pipe three is plugged into the water inlet of the circulating pump, and the other end of the pipe three is plugged into the top of the water tank. A three-way pipe one is plugged into the water outlet of the circulating pump, and the other two ends of the three-way pipe one are sequentially plugged into the top of the communicating vessel to facilitate the internal water supply of the cooling roller.

[0010] Preferably, the bottom ends of the two communicating vessels are both connected with three-way pipes 2, and the other ends of the three-way pipes 2 are connected to the top of the water tank, thereby realizing the circulation of cold water.

[0011] Preferably, the ends of the mounting seat close to the cooling roller shaft are arc-shaped, and the ends of the mounting seat are provided with dovetail grooves for the clamping blocks to engage, the internal dimensions of the dovetail grooves are adapted to the external dimensions of the clamping blocks, the clamping blocks are made of rubber, and the cleaning brushes are made of sponge and are arc-shaped, thereby improving the convenience of installing the cleaning brushes.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Firstly, a cylinder and a cleaning assembly are provided, wherein the cleaning assembly includes a mounting seat fixedly arranged at the output end of the cylinder, and the side wall of the mounting seat is arc-shaped and matched with the outer dimension of the cooling roller shaft. Starting the cylinder can push the mounting seat to move horizontally, thereby pushing the cleaning brush to evenly wipe and absorb condensed water and other impurities on the surface of the cooling roller shaft, thereby reducing the contamination of the surface of the cooling roller shaft and improving the quality of film cooling and forming; secondly, a dovetail groove is provided, and the dovetail groove runs through one end of the mounting seat, and the inner dimension of the dovetail groove is matched with the outer dimension of the block, thereby improving the convenience of installation and replacement of the cleaning brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0016] Figure 3 It is a schematic diagram of the side view installation structure of the cleaning component of the utility model.

[0017] Figure 4 It is a side view stereoscopic structural schematic diagram of the utility model.

[0018] The accompanying drawings are marked as follows: 1. workbench; 2. cooling roller shaft; 3. cylinder; 4. cleaning assembly; 401. mounting seat; 402. block; 403. cleaning brush; 404. dovetail groove; 5. supporting leg; 6. communicating vessel; 7. circulating pump; 8. tee pipe one; 9. water tank; 10. tee pipe two; 11. pipeline three; 12. limiting roller; 13. servo motor. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] See also Figure 1-4The utility model provides an embodiment: a rapid cooling roller device for PLA film production, comprising a workbench 1, four corner positions at the bottom of the workbench 1 are fixedly provided with support legs 5 by bolts, the bottom ends of the support legs 5 are flush for support, and the stability of the support of the workbench 1 is improved, the internal rotation of the workbench 1 is connected to two cooling roller shafts 2 for contacting with the PLA film for cooling, the side walls of the workbench 1 close to the two cooling roller shafts 2 are fixedly provided with cylinders 3, the output ends of the cylinders 3 are penetrated by the cylinders 3 and are provided with cleaning components 4, the cleaning components 4 include a mounting seat 401 fixedly provided at the output end of the cylinder 3, the mounting seat 401 is clamped with a clamping block 402 on the side wall close to the cooling roller shaft 2, and the clamping block 402 is clamped on the side wall of the cooling roller shaft 2. The ends of the blocks 402 are fixed with cleaning brushes 403 by gluing, the ends of the mounting seats 401 close to the cooling roller shaft 2 are arc-shaped, which is convenient for the horizontal movement of the mounting seats 401, and the ends of the mounting seats 401 are provided with dovetail grooves 404 for the clamping blocks 402 to clamp, and the clamping blocks 402 are made of rubber material with good flexibility, which is convenient for bending and deformation, thereby improving the convenience of installing the cleaning brush 403, and the internal dimensions of the dovetail grooves 404 are adapted to the external dimensions of the clamping blocks 402, and the cleaning brush 403 is made of sponge material and is arc-shaped, which improves the fit between the cleaning brush 403 and the surface of the cooling roller shaft 2, and two communicating vessels 6 are fixed by bolts on the side wall of the workbench 1 away from the cylinder 3 for the ends of the cylinder 3 to be plugged in and rotated.

[0022] Two groups of limiting rollers 12 are rotatably connected to the inner side walls of the workbench 1 near the two cooling roller shafts 2. Each group includes two roller shafts. The two groups of limiting rollers 12 are flush with the top and bottom ends of the cooling roller shafts 2 in turn, which can limit the lateral displacement of the film and improve the stability of film transportation.

[0023] Two servo motors 13 are fixedly provided on the side wall of the workbench 1 near the cylinder 3. The output ends of the two servo motors 13 are fixedly provided at the ends of the cooling roller shaft 2 through couplings. Starting the servo motors 13 can drive the cooling roller shaft 2 to rotate, thereby improving the uniformity and efficiency of the contact between the cooling roller shaft 2 and the film.

[0024] A water tank 9 is fixedly provided at the top of the workbench 1 for preparing and storing cold water. A circulating pump 7 is fixedly provided on the surface of the workbench 1 near the water tank 9. A pipe 3 11 is plugged into the water inlet of the circulating pump 7. The other end of the pipe 3 11 is plugged into the top of the water tank 9. A tee pipe 1 8 is plugged into the water outlet of the circulating pump 7. The other two ends of the tee pipe 1 8 are plugged into the top of the communicating vessel 6 in sequence. The bottom ends of the two communicating vessels 6 are both plugged into a tee pipe 2 10. The other end of the tee pipe 2 10 is plugged into the top of the water tank 9. The end of the cooling roller 2 is inserted into the interior of the communicating vessel 6 and is connected with the three-way pipe 1 8 and the three-way pipe 2 10 in sequence. Starting the circulation pump 7 can pump the cold water in the water tank 9 through the pipeline three 11, the three-way pipe 1 8 and the communicating vessel 6 to the interior of the two cooling rollers 2 to cool the surface of the cooling roller 2, so that the film in contact with the cooling roller 2 can be quickly cooled. The cold water in the cooling roller 2 is discharged into the interior of the water tank 9 through the communicating vessel 6 and the three-way pipe 2 10, realizing the circulation of cold water.

[0025] Working principle: When using this kind of rapid cooling roller device for PLA film production, the operator first connects an external power supply, passes the PLA film through the middle of a group of limiting rollers 12 at the top, and then winds it around the top and bottom ends of the two cooling roller shafts 2 in sequence, so that the film passes through the middle of a group of limiting rollers 12 at the bottom, thereby improving the stability of film cooling and transportation, and starting the circulation pump 7 can pump the cold water inside the water tank 9 through the pipeline three 11, the three-way pipe one 8 and the connecting vessel 6 to the inside of the two cooling roller shafts 2 to cool the surface of the cooling roller shaft 2, so that the film can be quickly and evenly cooled when in contact with the cooling roller shaft 2, thereby improving the stability and efficiency of the film cold zone contraction, when condensed water condenses on the surface of the cooling roller shaft 2, the operator starts the cylinder 3 to push the mounting seat 401 to move horizontally, thereby pushing the cleaning brush 403 to evenly wipe and absorb the condensed water and other impurities on the surface of the cooling roller shaft 2, thereby reducing the pollution of the surface of the cooling roller shaft 2, avoiding impurities from contaminating the film, and improving the quality of film cooling and molding.

[0026] Secondly, the inner dimensions of the dovetail groove 404 match the outer dimensions of the clamping block 402 , which improves the convenience of installing and replacing the cleaning brush 403 .

[0027] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0028] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0029] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0030] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A rapid cooling roller device for PLA film production, characterized in that: The invention comprises a workbench (1): the workbench (1) is internally rotatably connected to two cooling roller shafts (2); a cylinder (3) is fixedly provided on the side wall of the workbench (1) close to the two cooling roller shafts (2); the output end of the cylinder (3) is penetrated by a cleaning assembly (4) provided therein; the cleaning assembly (4) comprises a mounting seat (401) fixedly provided at the output end of the cylinder (3); a clamping block (402) is clamped on the side wall of the mounting seat (401) close to the cooling roller shaft (2); a cleaning brush (403) is fixedly provided at the end of the clamping block (402); and two communicating vessels (6) are fixedly provided on the side wall of the workbench (1) away from the cylinder (3) for the ends of the cylinder (3) to be plugged in and rotated.

2. The rapid cooling roller device for PLA film production according to claim 1, characterized in that: Support legs (5) are fixedly provided at the four corner positions at the bottom end of the workbench (1), and the bottom ends of the support legs (5) are flush for support.

3. The rapid cooling roller device for PLA film production according to claim 2, characterized in that: Two groups of limiting rollers (12) are rotatably connected to the inner side walls of the workbench (1) close to the two cooling roller shafts (2), and the two groups of limiting rollers (12) are flush with the top and bottom ends of the cooling roller shafts (2) respectively.

4. The rapid cooling roller device for PLA film production according to claim 3, characterized in that: Two servo motors (13) are fixedly arranged on the side wall of the workbench (1) close to the cylinder (3), and the output ends of the two servo motors (13) are fixedly arranged on the ends of the cooling roller shaft (2).

5. The rapid cooling roller device for PLA film production according to claim 4, characterized in that: A water tank (9) is fixedly arranged at the top of the workbench (1), and a circulation pump (7) is fixedly arranged on the surface of the workbench (1) close to the water tank (9). A pipe three (11) is plugged into the water inlet of the circulation pump (7), and the other end of the pipe three (11) is plugged into the top of the water tank (9). A three-way pipe (8) is plugged into the water outlet of the circulation pump (7), and the other two ends of the three-way pipe (8) are sequentially plugged into the top of the communicating vessel (6).

6. A rapid cooling roller device for PLA film production according to claim 5, characterized in that: The bottom ends of the two communicating vessels (6) are both plugged with three-way pipes (10), and the other end of the three-way pipes (10) is plugged into the top end of the water tank (9).

7. The rapid cooling roller device for PLA film production according to claim 1, characterized in that: The ends of the mounting seat (401) close to the cooling roller shaft (2) are arc-shaped, and the ends of the mounting seat (401) are provided with dovetail grooves (404) for the clamping block (402) to be clamped, and the internal dimensions of the dovetail grooves (404) are matched with the external dimensions of the clamping block (402), the clamping block (402) is made of rubber, and the cleaning brush (403) is made of sponge and is arc-shaped.

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