Calendering equipment for protective film production

Abstract

The utility model discloses calendering equipment for production of protective films, and relates to the technical field of calendering of protective films, and the calendering equipment is characterized by comprising a central pressing frame and a first communicating frame, the rear end of the central pressing frame is fixedly connected with a second communicating frame, and the front end of the first communicating frame is fixedly connected with a feeding pressing frame; a discharging pressing frame is fixedly connected to the rear end of the second communicating frame, and conveying frames are fixedly connected to the top end of the first communicating frame and the bottom end of the second communicating frame. Through the central pressing frame, the first communicating frame, the second communicating frame, the feeding pressing frame, the discharging pressing frame, the jacking spring, the first inclined jacking frame, the second inclined jacking frame, the heating pipe, the soaking plate and the feeding frame, the whole uniform heating and softening operation during calendering for protective film production can be realized; a worker firstly puts a protective film needing to be subjected to calendering production from the feeding frame of the feeding pressing frame, and then preliminary calendering operation is performed in the feeding pressing frame.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film calendering, and more specifically, to a calendering device for producing protective films. Background Art

[0002] Calendering is one of the important basic processes in polymer material processing, and is also one of the important processing and molding methods for some semi-finished and finished polymer materials. The plasticized thermoplastic plastic close to the viscosity flow temperature passes through the gap between a series of horizontal rollers rotating in opposite directions, so that the material is subjected to extrusion and extension, and becomes a thin sheet product with a certain thickness, width and smooth surface.

[0003] For example, patent document CN 220681406 U discloses a calendering device for producing protective films, comprising: a main unit including a base, to which vertical plates are symmetrically fixedly connected, and two vertical plates are fixedly connected to a material storage box; a processing unit including a first conveying device body, the base symmetrically provided with rectangular plates, the rectangular plates having threaded rods rotatably inserted therein, a transmission assembly provided between the two threaded rods, a second conveying device body provided between the two rectangular plates, a plurality of electric pressure rollers provided between the second conveying device body and the first conveying device body, and a cooling assembly provided on the base. The utility model drives the rectangular plates up and down by turning a handle, which drives the electric pressure rollers between the rectangular plates up and down, and adjusts them, so that the device can be used to process protective films of different thicknesses, thereby improving the applicability of the device.

[0004] However, when this structure is used for calendering in actual protective film production, it is unable to properly perform heat softening operations on the repeatedly calendered and stretched protective film raw materials, resulting in the calendered protective film being unable to perform better stretching and holding operations. At the same time, the equipment is unable to properly perform fixed-distance operations on the protective film each time it is calendered, affecting the overall calendering integrity and failing to meet daily usage needs.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a calendering device for producing a protective film. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a calendering device for producing a protective film.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a central pressing frame, wherein the front end of the central pressing frame is fixedly connected to a first connecting frame, the rear end of the central pressing frame is fixedly connected to a second connecting frame, the front end of the first connecting frame is fixedly connected to a feed pressing frame, and the rear end of the second connecting frame is fixedly connected to a discharge pressing frame;

[0008] The top end of the first connecting frame and the bottom end of the second connecting frame are both fixedly connected to the conveying frame, and the inner centers of the first connecting frame and the second connecting frame are provided with a pressure spring.

[0009] Preferably, one end of the pressure spring is fixedly connected to a first inclined support, and the other end of the pressure spring is fixedly connected to a second inclined support.

[0010] Preferably, a heating pipe is provided inside the second inclined roof frame, and a heat spreader is provided at one end of the second inclined roof frame away from each other.

[0011] Preferably, conveying covers are provided at the upper and lower ends of the conveying frame, conveying rollers are provided inside the conveying covers, and conveying chute is provided on both sides inside the conveying frame.

[0012] Preferably, the front end of the feed press is fixedly connected to a feed rack, and bearing seats are provided at the upper and lower ends of the feed press.

[0013] Preferably, the interior of the feed press frame is movably connected to a calendering roller via a bearing seat, and both ends of the calendering roller are provided with limiting rings.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the center press frame, the first connecting frame, the second connecting frame, the feed press frame, the discharge press frame, the top pressure spring, the first inclined top connection, the second inclined top frame, the heating pipe, the heat plate and the feed frame can realize the overall uniform heating and softening operation during the calendering of the protective film production. In the actual use process, the staff first puts the protective film to be calendered into the feed frame of the feed press frame, and then performs the preliminary calendering operation inside the feed press frame. After that, the protective film passes through the first connecting frame and enters the center press frame for the secondary calendering operation. After calendering, the protective film passes through the second connecting frame and enters the interior of the discharge pressing frame for three calenderings. At this time, the first connecting frame and the second connecting frame can use the central pressing spring to connect the first and second inclined top frames at both ends to the surface of the protective film. The first and second inclined top frames are connected and the heating tubes and heat spreaders on the sides are used to realize the rapid heat softening and shaping operation of the protective film after calendering, so as to ensure the final calendering quality of the protective film and perform a more adaptive fitting heating operation with the protective film, which reflects the practicality of the equipment design.

[0016] 2. In the present invention, the overall use effect of the equipment is further improved through the central pressure frame, feed pressure frame, discharging pressure frame, conveying frame, conveying cover, conveying roller, conveying chute, bearing seat, calendering roller and limiting collar. In daily use, when the protective film is inside the first connecting frame or the second connecting frame, the two groups of conveying frames at the top of the first connecting frame and the bottom of the second connecting frame can be used to perform oblique tensioning and conveying operations on the protective film respectively. At this time, the protective film is inserted into the conveying chute of the conveying frame, and the conveying roller inside the conveying cover is stably tensioned and conveyed by the conveying frame. Then, the protective film obliquely tightened and conveyed inside the first connecting frame and the second connecting frame can also be better thermally softened. At the same time, the upper and lower groups of calendering rollers can be driven by the conveying frame to perform calendering operations inside the daily central pressure frame, feed pressure frame and discharging pressure frame. At the same time, the limiting collar on the calendering roller can control the calendering distance each time, so that the protective film can be gradually extended to a suitable calendering width, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the conveyor frame in the present utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the bearing seat in the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the structure of point A in the present invention.

[0022] 1. Center pressure frame; 2. First connecting frame; 3. Second connecting frame; 4. Feed pressure frame; 5. Discharge pressure frame; 6. Conveyor frame; 7. Pressing spring; 8. First inclined top connection; 9. Second inclined top frame; 10. Heating tube; 11. Heat spreader; 12. Conveyor cover; 13. Conveyor roller; 14. Conveyor chute; 15. Feed frame; 16. Bearing seat; 17. Calendering roller; 18. Limiting collar. DETAILED DESCRIPTION

[0023] like Figure 1-4As shown, the utility model provides a calendering equipment for producing protective film, including a central press frame 1, the front end of the central press frame 1 is fixedly connected to a first connecting frame 2, the rear end of the central press frame 1 is fixedly connected to a second connecting frame 3, the front end of the first connecting frame 2 is fixedly connected to a feed press frame 4, the rear end of the second connecting frame 3 is fixedly connected to a discharge press frame 5, the front end of the feed press frame 4 is fixedly connected to a feed frame 15, the upper and lower ends of the feed press frame 4 are provided with bearing seats 16, the interior of the feed press frame 4 is movably connected to a calendering roller 17 through the bearing seat 16, and the two ends of the calendering roller 17 are sleeved with a limiting collar 18, first put the protective film to be calendered into the feed frame 15 of the feed press frame 4, and then A preliminary calendering operation is performed inside the feed press frame 4, and then the protective film passes through the first connecting frame 2 and enters the center press frame 1 for secondary calendering. Finally, the protective film passes through the second connecting frame 3 and enters the discharge press frame 5 for tertiary calendering. At this time, the first connecting frame 2 and the second connecting frame 3 can use the central pressing spring 7 to connect the first oblique top connection 8 and the second oblique top frame 9 at both ends to the surface of the protective film. The heating tube 10 and the heat spreader 11 inside and on the side of the first oblique top connection 8 and the second oblique top frame 9 are used to realize the rapid heat softening and shaping operation after the protective film is calendered, so as to ensure the final calendering quality of the protective film and perform a more adaptive fitting heating operation with the protective film.

[0024] The conveying frame 6, the top end of the first connecting frame 2 and the bottom end of the second connecting frame 3 are fixedly connected to the conveying frame 6, the internal center of the first connecting frame 2 and the second connecting frame 3 is provided with a pressure spring 7, one end of the pressure spring 7 is fixedly connected to the first inclined top connection 8, the other end of the pressure spring 7 is fixedly connected to the second inclined top frame 9, a heating tube 10 is provided inside the second inclined top frame 9, and a heat spreader 11 is provided at one end of the second inclined top frame 9 away from each other. The upper and lower ends of the conveying frame 6 are provided with a conveying cover 12, and a conveying roller 13 is provided inside the conveying cover 12. Conveying chute 14 is provided on both sides of the interior of the conveying frame 6. In daily use, when the protective film is inside the first connecting frame 2 or the second connecting frame 3, it can pass through the first connecting frame 2 or the second connecting frame 3. The two groups of conveying racks 6 at the top of the first connecting rack 2 and the bottom of the second connecting rack 3 respectively perform the oblique tensioning and conveying operation of the protective film. At this time, the protective film is inserted into the conveying inclined groove 14 of the conveying rack 6, and the conveying roller 13 inside the conveying cover 12 of the conveying rack 6 performs a stable tensioning and conveying operation. Then, the protective film obliquely tightened and conveyed inside the first connecting rack 2 and the second connecting rack 3 can also perform a better heat softening operation. At the same time, the upper and lower groups of calendering rollers 17 can be driven by the conveying rack 6 to perform calendering operations inside the daily center press 1, the feed press 4 and the discharge press 5. At the same time, the limiting collar 18 on the calendering roller 17 can control the calendering distance each time, so that the protective film can be gradually extended to a suitable calendering width.

[0025] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A calendering device for producing a protective film, characterized in that: The invention comprises a central pressing frame (1), wherein the front end of the central pressing frame (1) is fixedly connected to a first connecting frame (2), the rear end of the central pressing frame (1) is fixedly connected to a second connecting frame (3), the front end of the first connecting frame (2) is fixedly connected to a feeding pressing frame (4), and the rear end of the second connecting frame (3) is fixedly connected to a discharging pressing frame (5); A conveying frame (6), the top end of the first connecting frame (2) and the bottom end of the second connecting frame (3) are both fixedly connected to the conveying frame (6), and a pressure spring (7) is provided at the inner center of the first connecting frame (2) and the second connecting frame (3).

2. The calendering equipment for producing a protective film according to claim 1, characterized in that: One end of the pressure spring (7) is fixedly connected to a first inclined top connection (8), and the other end of the pressure spring (7) is fixedly connected to a second inclined top frame (9).

3. The calendering equipment for producing a protective film according to claim 2, characterized in that: A heating pipe (10) is provided inside the second inclined top frame (9), and a heat spreader (11) is provided at one end of the second inclined top frame (9) that is away from each other.

4. The calendering equipment for producing a protective film according to claim 1, characterized in that: The upper and lower ends of the conveying frame (6) are provided with conveying covers (12), the interior of the conveying cover (12) is provided with conveying rollers (13), and both sides of the interior of the conveying frame (6) are provided with conveying chute (14).

5. The calendering equipment for producing a protective film according to claim 1, characterized in that: The front end of the feed pressing frame (4) is fixedly connected to a feed frame (15), and bearing seats (16) are provided at the upper and lower ends of the interior of the feed pressing frame (4).

6. The calendering equipment for producing a protective film according to claim 1, characterized in that: The interior of the feed press frame (4) is movably connected to a calendering roller (17) via a bearing seat (16), and both ends of the calendering roller (17) are sleeved with limiting rings (18).

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