Calendering device for plastic film production and processing

Abstract

The utility model relates to the technical field of plastic film production, in particular to a calendering device for plastic film production and processing, which comprises a mounting frame, a supporting seat and a calendering component, a first cavity and a second cavity are arranged in the mounting frame, the calendering component is mounted in the first cavity, and a folding protective cover is arranged in the second cavity; the calendaring assembly comprises a rotary driving device, an upper calendaring roller and a lower calendaring roller, rotating shafts at the two ends of the upper calendaring roller and the lower calendaring roller penetrate through the mounting frames on the two sides, driven gears are arranged on the rotating shafts at the two ends of the upper calendaring roller, driving gears are arranged on the rotating shafts at the two ends of the lower calendaring roller, and the driving gears are meshed with the driven gears; the rotary driving device is mounted on the side wall of the mounting frame; the output end of the rotary driving device is connected with the rotating shaft; an arc-shaped opening is formed in the inner side wall of the second cavity, a folding handle is arranged on the folding protection cover, and the size of the arc-shaped opening is matched with that of the folding handle. The calender roll protection device can protect the calender roll, improve the operation safety performance and maintain equipment tidiness.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, in particular to a calendering device for the production and processing of plastic films. Background Art

[0002] With the continuous development of the economy and the continuous adjustment of the rural industrial structure, the demand for plastic films in the production sector has continued to increase. Plastic film is a new type of material generated by the fusion of polyethylene and resin materials. It is widely used in food, medicine or chemical industry for packaging. When producing plastic film, the raw materials of the plastic film need to be calendered to make the plastic film lighter and thinner as a whole and improve the ductility of the plastic film.

[0003] The existing device generally calenders the plastic film through two calendering rollers rotating in opposite directions. However, it is difficult to shield and protect the calendering rollers during the calendering process. The operator's hands may be easily caught in the calendering rollers due to mistakes during operation, resulting in serious physical injuries. Utility Model Content

[0004] In view of the above problems, a calendering device for producing and processing plastic films is provided. An arc-shaped opening is provided in the second cavity of the mounting frame so that a folding handle provided on the folding protective cover can open and close the folding protective cover along the direction of the arc-shaped opening. The folding protective cover is opened in the working state to prevent the operator from touching the upper calendering roller and the lower calendering roller and causing injury. At the same time, the folding protective cover can reduce the dust falling on the upper calendering roller and the lower calendering roller, making the overall device tidier.

[0005] In order to solve the problems of the prior art, a calendering device for producing and processing plastic films is provided, comprising a mounting frame, a support seat and a calendering assembly, wherein a first cavity and a second cavity are arranged in the mounting frame, the calendering assembly is arranged in the first cavity, and a folding protective cover is arranged in the second cavity; the calendering assembly comprises a rotary drive device, an upper calendering roller and a lower calendering roller, the rotating shafts at both ends of the upper calendering roller and the lower calendering roller pass through the mounting frames on both sides, driven gears are arranged on the rotating shafts at both ends of the upper calendering roller, and driving gears are arranged on the rotating shafts at both ends of the lower calendering roller, and the driving gear and the driven gear are arranged in the first cavity of the mounting frames on both sides; the driving gear and the driven gear are meshed with each other; the rotary drive device is arranged on the side wall of the mounting frame, and the output end of the rotary drive device is connected to the rotating shaft; an arc-shaped opening is arranged on the inner side wall of the second cavity, and a folding handle is arranged on the folding protective cover, and the size of the arc-shaped opening is adapted to the folding handle, and the mounting frame is fixedly mounted on the support seat.

[0006] Preferably, a snap assembly is also included, which includes a telescopic block, a snap box and a first spring, the telescopic block is installed on the folding handle, the snap box is arranged in the folding protective cover, the first spring is arranged in the cavity in the snap box, one end of the first spring is fixedly connected to the telescopic block, and the other end of the first spring is fixedly connected to the bottom of the cavity in the snap box, the telescopic block is adapted to the size of the cavity; a snap groove is provided at the bottom of the arc-shaped opening, and the size of the snap groove is adapted to the folding handle.

[0007] Preferably, the folding protective cover is provided with a mounting opening, a telescopic slot is provided on one side of the mounting opening, the folding handle is movably provided at the mounting opening, and the buckle box is provided in the telescopic slot.

[0008] Preferably, a guide assembly is also included, which includes a guide groove, a guide column and a second spring. The guide groove is arranged on a mounting frame on one side of the arc-shaped opening, and the guide column is installed at one end of the folding handle. The size of the guide column is adapted to the guide groove. One end of the second spring is fixedly connected to the guide column, and the other end of the second spring is arranged inside the folding handle.

[0009] Preferably, a mounting box is provided inside the folding handle, a mounting slot is provided inside the mounting box, the second spring is provided in the mounting slot, and the size of the guide column is adapted to the mounting slot.

[0010] Preferably, the elastic potential energy of the first spring is greater than the elastic potential energy of the second spring.

[0011] Preferably, the mounting frame is provided with an escape opening, the escape opening is arranged between the upper calendering roller and the lower calendering roller, and the escape opening is used for transporting the plastic film.

[0012] Preferably, bearing sleeves are provided at both ends of the driving gear and the driven gear.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model provides an arc-shaped opening in the second cavity of the mounting frame, so that the folding handle provided on the folding protective cover can open and close the folding protective cover along the direction of the arc-shaped opening. The folding protective cover is opened in the working state to prevent the operator from touching the upper calendering roller and the lower calendering roller and causing injury. At the same time, the folding protective cover can reduce the dust falling on the upper calendering roller and the lower calendering roller, making the overall device neater.

[0015] 2. The utility model provides a buckle assembly. The telescopic block provided on one side of the folding handle drives the folding handle to move into the buckle groove under the elastic force of the first spring, and the folding handle is buckled and fixed, which effectively improves the stability of the overall device after the folding protective cover is opened and improves the safety performance in the working state.

[0016] 3. The utility model sets a guide assembly. During the process of opening and closing the folding protective cover, the folding handle moves at the installation opening, and the guide column extends out under the elastic force of the second spring. Through the mutual cooperation of the guide column and the guide groove, the opening and closing process is more stable and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a calendering device for producing and processing plastic films.

[0018] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a mounting frame of a calendering device for producing and processing plastic films.

[0019] Figure 3 The present invention is a schematic diagram of the installation of a calendering component of a calendering device for producing and processing plastic films.

[0020] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a folding protective cover of a calendering device for producing and processing plastic films.

[0021] Figure 5 The present invention is a three-dimensional structural diagram of a folding handle of a calendering device for producing and processing plastic films.

[0022] Figure 6 The present invention is a cross-sectional view of the installation of a folding handle of a calendering device for producing and processing plastic film.

[0023] The numbers in the figure are: 1-mounting frame; 11-first cavity; 12-second cavity; 121-arc opening; 1211-clip groove; 1212-guide groove; 13-avoidance; 2-support seat; 3-calendering assembly; 31-rotation driving device; 32-upper calendering roller; 321-driven gear; 33-lower calendering roller; 331-driving gear; 34-rotating shaft; 4-folding protective cover; 41-folding handle; 411-mounting box; 4111-mounting groove; 42-mounting opening; 421-telescopic groove; 5-guide column; 51-second spring; 6-telescopic block; 7-clip box; 71-first spring; 8-bearing sleeve. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figures 1 to 6 As shown: a calendering device for producing and processing plastic film, a mounting frame 1, a support seat 2 and a calendering assembly 3, wherein the mounting frame 1 is provided with a first cavity 11 and a second cavity 12, the calendering assembly 3 is installed in the first cavity 11, and a folding protective cover 4 is provided in the second cavity 12; the calendering assembly 3 includes a rotating drive device 31, an upper calendering roller 32 and a lower calendering roller 33, and the rotating shafts 34 at both ends of the upper calendering roller 32 and the lower calendering roller 33 penetrate the mounting frame 1 on both sides, and the rotating shafts 34 at both ends of the upper calendering roller 32 are provided with driven gears 321, and the lower calendering roller 33 is provided with a driven gear 321. A driving gear 331 is provided on the rotating shafts 34 at both ends, and the driving gear 331 and the driven gear 321 are installed in the first cavity 11 of the mounting frames 1 on both sides; the driving gear 331 and the driven gear 321 are meshed with each other; the rotation driving device 31 is installed on the side wall of the mounting frame 1, and the output end of the rotation driving device 31 is connected to the rotating shaft 34; an arc-shaped opening 121 is provided on the inner side wall of the second cavity 12, and a folding handle 41 is provided on the folding protective cover 4, and the size of the arc-shaped opening 121 is adapted to the folding handle 41, and the mounting frame 1 is fixedly installed on the support seat 2.

[0026] During use of the calendering device for producing and processing plastic film, the rotating drive device 31 is turned on. The rotating drive device 31 is preferably a rotating motor. The rotating drive device 31 drives the rotating shaft 34 at one end of the lower calendering roller 33 to rotate, and the rotating shaft 34 drives the entire lower calendering roller 33 to rotate. Since the driving gear 331 set at both ends of the lower calendering roller 33 and the driven gear 321 set at both ends of the upper calendering roller 32 are engaged with each other, the upper calendering roller 32 and the lower calendering roller 33 are driven to rotate. The upper calendering roller 32 and the lower calendering roller 33 rotate in opposite directions, so as to better calender the plastic film. By providing an arc-shaped opening 121 in the second cavity 12 of the mounting frame 1, the folding handle 41 provided on the folding protective cover 4 can open and close the folding protective cover 4 along the direction of the arc-shaped opening 121. The folding protective cover 4 is opened in the working state to prevent the operator from touching the upper calendering roller 32 and the lower calendering roller 33 and causing injuries. At the same time, by providing the folding protective cover 4, the dust falling on the upper calendering roller 32 and the lower calendering roller 33 can be reduced, making the overall device neater.

[0027] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6As shown: it also includes a snap assembly, which includes a telescopic block 6, a snap box 7 and a first spring 71, the telescopic block 6 is installed on the folding handle 41, the snap box 7 is arranged in the folding protection cover 4, the first spring 71 is arranged in the cavity in the snap box 7, one end of the first spring 71 is fixedly connected to the telescopic block 6, and the other end of the first spring 71 is fixedly connected to the bottom of the cavity in the snap box 7, and the telescopic block 6 is adapted to the size of the cavity; a snap groove 1211 is provided at the bottom of the arc-shaped opening 121, and the size of the snap groove 1211 is adapted to the folding handle 41.

[0028] After the folding handle 41 opens the folding protective cover 4, the folding handle 41 is set at the bottom of the arc-shaped opening 121. By setting a snap-on assembly, the telescopic block 6 set on one side of the folding handle 41 drives the folding handle 41 to move to the snap-on groove 1211 under the elastic force of the first spring 71, and the folding handle 41 is snap-on fixed, which effectively improves the stability of the overall device of the folding protective cover 4 after it is opened, and improves the safety performance in the working state.

[0029] Reference Figure 6 As shown, the folding protective cover 4 is provided with a mounting opening 42 , a telescopic slot 421 is provided at one side of the mounting opening 42 , the folding handle 41 is movably provided at the mounting opening 42 , and the buckle box 7 is provided in the telescopic slot 421 .

[0030] When the folding protective cover 4 is in the open state, the folding handle 41 abuts against one end of the mounting opening 42 under the elastic force of the first spring 71. When closing the folding protective cover 4, the folding handle 41 is pulled and moves along the direction of the mounting opening 42. When the folding handle 41 moves to the arc-shaped opening 121, the folding protective cover 4 can be closed.

[0031] Reference Figure 2 , Figure 5 and Figure 6 As shown: it also includes a guide component, which includes a guide groove 1212, a guide column 5 and a second spring 51. The guide groove 1212 is arranged on the mounting frame 1 on one side of the arc-shaped opening 121, and the guide column 5 is installed at one end of the folding handle 41. The size of the guide column 5 is adapted to the guide groove 1212. One end of the second spring 51 is fixedly connected to the guide column 5, and the other end of the second spring 51 is arranged inside the folding handle 41.

[0032] During the process of opening and closing the folding protective cover 4, the folding handle 41 moves at the installation opening 42, and the guide column 5 extends out under the elastic force of the second spring 51. Through the mutual cooperation between the guide column 5 and the guide groove 1212, the opening and closing process is more stable and smooth.

[0033] Reference Figure 5 and Figure 6 As shown: the folding handle 41 is provided with a mounting box 411 inside, the mounting box 411 is provided with a mounting groove 4111, the second spring 51 is arranged in the mounting groove 4111, and the size of the guide column 5 is adapted to the mounting groove 4111.

[0034] The elastic potential energy of the first spring 71 is greater than the elastic potential energy of the second spring 51 .

[0035] After the buckle is completed, under the elastic force of the first spring 71, the folding handle 41 abuts against one end of the installation port 42, and the guide column 5 enters the installation groove 4111 under the elastic force of the first spring 71. When the handle is manually pulled to close the folding protective cover 4, the guide column 5 extends out from the installation box 411 under the elastic force of the second spring 51, and then performs a guiding role.

[0036] Reference Figure 2 As shown: the mounting frame 1 is provided with an escape opening 13, the escape opening 13 is arranged between the upper calendering roller 32 and the lower calendering roller 33, and the escape opening 13 is used for transporting plastic film.

[0037] Reference Figure 1 As shown: bearing sleeves 8 are provided at both ends of the driving gear 331 and the driven gear 321.

[0038] By providing the bearing sleeve 8, the upper calendering roller 32 and the lower calendering roller 33 are more stable during the rotation process, which effectively improves the quality of the plastic film after calendering.

[0039] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A calendering device for producing and processing plastic film, comprising a mounting frame (1), a support seat (2) and a calendering assembly (3), characterized in that: The mounting frame (1) is provided with a first cavity (11) and a second cavity (12), the calendering assembly (3) is installed in the first cavity (11), and the second cavity (12) is provided with a folding protective cover (4); The calendering assembly (3) comprises a rotary drive device (31), an upper calendering roller (32) and a lower calendering roller (33); the rotating shafts (34) at both ends of the upper calendering roller (32) and the lower calendering roller (33) penetrate the mounting frames (1) at both sides; the rotating shafts (34) at both ends of the upper calendering roller (32) are provided with driven gears (321); the rotating shafts (34) at both ends of the lower calendering roller (33) are provided with driving gears (331); the driving gears (331) and the driven gears (321) are mounted in the first cavities (11) of the mounting frames (1) at both sides; the driving gears (331) and the driven gears (321) are meshed with each other; the rotary drive device (31) is mounted on the side wall of the mounting frame (1); the output end of the rotary drive device (31) is connected to the rotating shaft (34); The inner wall of the second cavity (12) is provided with an arc-shaped opening (121), the folding protective cover (4) is provided with a folding handle (41), the size of the arc-shaped opening (121) is adapted to the folding handle (41), and the mounting frame (1) is fixedly mounted on the support seat (2).

2. A calendering device for producing and processing plastic film according to claim 1, characterized in that: The invention also comprises a buckle assembly, wherein the buckle assembly comprises a telescopic block (6), a buckle box (7) and a first spring (71); the telescopic block (6) is mounted on the folding handle (41); the buckle box (7) is arranged in the folding protective cover (4); the first spring (71) is arranged in the cavity in the buckle box (7); one end of the first spring (71) is fixedly connected to the telescopic block (6); the other end of the first spring (71) is fixedly connected to the bottom of the cavity in the buckle box (7); the telescopic block (6) is adapted to the size of the cavity; and a buckle groove (1211) is arranged at the bottom of the arc-shaped opening (121); the size of the buckle groove (1211) is adapted to the size of the folding handle (41).

3. A calendering device for producing and processing plastic film according to claim 2, characterized in that: The folding protective cover (4) is provided with a mounting opening (42), a telescopic slot (421) is provided on one side of the mounting opening (42), the folding handle (41) is movably arranged at the mounting opening (42), and the buckle box (7) is arranged in the telescopic slot (421).

4. A calendering device for producing and processing plastic film according to claim 3, characterized in that: The invention also comprises a guide assembly, wherein the guide assembly comprises a guide groove (1212), a guide column (5) and a second spring (51); the guide groove (1212) is arranged on a mounting frame (1) on one side of the arc-shaped opening (121); the guide column (5) is mounted on one end of the folding handle (41); the size of the guide column (5) is adapted to the guide groove (1212); one end of the second spring (51) is fixedly connected to the guide column (5); and the other end of the second spring (51) is arranged inside the folding handle (41).

5. A calendering device for producing and processing plastic film according to claim 4, characterized in that: The folding handle (41) is provided with a mounting box (411) inside, the mounting box (411) is provided with a mounting groove (4111), the second spring (51) is arranged in the mounting groove (4111), and the size of the guide column (5) is adapted to the mounting groove (4111).

6. A calendering device for producing and processing plastic film according to claim 5, characterized in that: The elastic potential energy of the first spring (71) is greater than the elastic potential energy of the second spring (51).

7. A calendering device for producing and processing plastic film according to claim 1, characterized in that: The mounting frame (1) is provided with an escape opening (13), the escape opening (13) being arranged between an upper calendering roller (32) and a lower calendering roller (33), and the escape opening (13) being used for transporting plastic film.

8. A calendering device for producing and processing plastic film according to claim 1, characterized in that: Bearing sleeves (8) are provided at both ends of the driving gear (331) and the driven gear (321).

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