Crease-resistant film pressing device for production of wrapping film

Abstract

The utility model relates to the technical field of wrapping film production, in particular to a crease-resistant film pressing device for wrapping film production, which comprises a winding mechanism and a film pressing mechanism, and the winding mechanism comprises a mounting frame, a power device and a winding roller; the output end of the power device is connected with the winding roller, and the two ends of the winding roller are rotationally arranged on the mounting frame. The film pressing mechanism comprises a pressing roller, a rotating support, a supporting block and a positioning seat; an adjusting groove is formed in the side wall of the mounting frame, the supporting block is arranged at the bottom of the rotating support, and the two ends of the pressing roller are rotationally arranged on the rotating support; the positioning seats are fixedly arranged at the bottoms of the adjusting grooves, the bottoms of the supporting blocks are arranged in the positioning seats, springs are arranged in the positioning seats, and the peripheral wall of the pressing roller is connected with the peripheral wall of the winding roller. In the winding process, the compression roller can be self-adaptive to close contact with the peripheral wall of the winding roller, so that the phenomenon that a winding film is wrinkled due to non-uniform tension or mechanical vibration in the winding process is effectively prevented, and the quality of the winding film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film production, in particular to an anti-wrinkle film pressing device for stretch film production. Background Art

[0002] Wrap film, also known as stretch film and heat shrink film, was first produced in China with PVC as the base material and DOA as the plasticizer and self-adhesive. Due to environmental issues, high cost (relatively high specific gravity of PE, small unit packaging area), poor stretchability and other reasons, it was gradually eliminated when PE stretch film was produced in China from 1994 to 1995. PE stretch film first used EVA as the self-adhesive material, but it was expensive and smelly. Later, PIB and VLDPE were used as self-adhesive materials, and the base material was mainly LLDPE, including C4, C6, C8 and metallocene PE (MPE).

[0003] In the production process of stretch film, especially in the winding stage, the flatness and wrinkle-freeness of the film are crucial to the quality of the final product. However, due to various factors such as material properties, mechanical vibration, and uneven tension, stretch film is prone to wrinkles during the winding process, which not only affects the appearance quality of the product, but may also affect its performance.

[0004] Traditional wrinkle-proof film pressing devices often use a single pressing roller design, which can reduce wrinkles to a certain extent, but the effect is not ideal. Especially in the case of high-speed and large-scale production, traditional wrinkle-proof film pressing devices often cannot adapt to production needs, resulting in unstable product quality. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an anti-wrinkle film pressing device for the production of stretch film, which ensures that the stretch film is in close contact with the winding roller during the winding process, effectively prevents the stretch film from wrinkling due to uneven tension or mechanical vibration during the winding process, and improves the quality of the stretch film.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a wrinkle-proof film pressing device for the production of stretch film is proposed, comprising a workbench, a winding mechanism, a film pressing mechanism and an adjusting mechanism, wherein the winding mechanism comprises a mounting frame, a power device and a winding roller; the mounting frame is fixedly arranged on the workbench, the power device is arranged on the side wall of the mounting frame, and its output end is connected to the winding roller, and the two ends of the winding roller are rotatably arranged on the mounting frame; the film pressing mechanism comprises a pressing roller, a rotating support, a support block and a positioning seat; the side wall of the mounting frame is provided with an adjusting groove, the rotating support is arranged in the adjusting groove, the support block is arranged at the bottom of the rotating support, and the two ends of the pressing roller are rotatably arranged on the rotating support; the positioning seat is fixedly arranged at the bottom of the adjusting groove, the bottom of the support block is arranged in the positioning seat, and a spring is arranged inside the positioning seat, one end of the spring is connected to the inside of the positioning seat, and the other end is connected to the bottom of the support block; the outer peripheral wall of the pressing roller is connected to the outer peripheral wall of the winding roller; the adjusting mechanism is arranged on one side of the winding roller, and is used to adjust the tension of the winding of the stretch film.

[0007] As a further solution of the utility model: the adjusting mechanism includes an adjusting frame, a driving device and an adjusting roller; a supporting frame is arranged on the workbench, the driving device is arranged on the top of the supporting frame, the output end of the driving device passes through the top of the supporting frame and is connected to the adjusting frame, and the adjusting roller is rotatably arranged between the adjusting frames; the adjusting roller and the winding roller are parallel to each other in the projection of the horizontal plane.

[0008] As a further solution of the utility model: a slide groove is provided on the inner side wall of the adjustment groove, and the slide groove penetrates the side wall of the mounting frame; a slider is provided on the side wall of the rotating support, and the slider is slidably arranged in the slide groove.

[0009] As a further solution of the utility model: the side wall of the mounting frame is provided with a wing plate, the wing plate is located below the slide slot, and the slider is provided with a positioning bolt, and the positioning bolt passes through the slider and is connected to the wing plate.

[0010] As a further solution of the utility model: the axis of the pressing roller and the axis of the winding roller coincide with each other in projection on the horizontal plane.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model ensures that the wrapping film is in close contact with the winding roller during the winding process through the installation and coordination of the positioning seat, the spring and the support block, effectively preventing the wrapping film from wrinkling due to uneven tension or mechanical vibration during the winding process, thereby improving the quality of the wrapping film. At the same time, during the winding process, the pressure roller can automatically adapt to the thickness of the winding roller during winding through the spring, thereby ensuring the stable pressing of the wrapping film by the pressure roller and improving the winding efficiency.

[0013] 2. The utility model drives the movement of the adjustment frame through the driving device, and then drives the adjustment roller to move up and down, so as to achieve real-time adjustment of the tension of the wrapping film. This dynamic adjustment method can quickly respond to changes in the production process, ensuring that the wrapping film is always rolled up under the appropriate tension, thereby effectively avoiding wrinkles and relaxation of the film material.

[0014] 3. The utility model makes the movement of the rotating support and the pressure roller more stable through the cooperation of the slider and the slide groove, which helps to ensure that the pressure roller always remains parallel to the winding roller during the adjustment process, thereby preventing the film material from being offset or wrinkled during the winding process.

[0015] 4. The utility model ensures that the pressure roller can accurately press on the wrapping film on the wrapping roller by making the projections of the pressure roller axis and the winding roller axis on the horizontal plane coincide with each other, preventing the wrapping film from shifting during the wrapping process. At the same time, it can ensure that the wrapping film is subjected to uniform pressure during the wrapping process, reducing deformation or damage of the wrapping film caused by uneven pressure and improving the quality of the wrapping film after winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of an anti-wrinkle film pressing device for the production of stretch film.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the winding mechanism and the film pressing mechanism.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the film pressing mechanism.

[0019] The reference numerals in the figure are: 1. workbench; 2. mounting frame; 21. adjusting slot; 22. slide slot; 23. wing plate; 3. power device; 31. winding roller; 4. pressure roller; 5. rotating support; 51. support block; 52. slider; 6. positioning seat; 61. spring; 7. adjusting frame; 71. adjusting roller; 72. driving device; 8. supporting frame; 9. positioning bolt. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3As shown, an anti-wrinkle film pressing device for the production of stretch film includes a workbench 1, a winding mechanism, a film pressing mechanism and an adjusting mechanism, wherein the winding mechanism includes a mounting frame 2, a power device 3 and a winding roller 31; the mounting frame 2 is fixedly arranged on the workbench 1, the power device 3 is arranged on the side wall of the mounting frame 2, and its output end is connected to the winding roller 31, and both ends of the winding roller 31 are rotatably arranged on the mounting frame 2; the winding roller 31 is driven to rotate by the power device 3 to realize the winding work of the stretch film after production.

[0022] The film pressing mechanism includes a pressing roller 4, a rotating support 5, a support block 51 and a positioning seat 6; the side wall of the mounting frame 2 is provided with an adjusting groove 21, the rotating support 5 is arranged in the adjusting groove 21, the support block 51 is arranged at the bottom of the rotating support 5, and the two ends of the pressing roller 4 are rotatably arranged on the rotating support 5; the positioning seat 6 is fixedly arranged at the bottom of the adjusting groove 21, the bottom of the support block 51 is arranged in the positioning seat 6, and a spring 61 is arranged inside the positioning seat 6, one end of the spring 61 is connected to the inside of the positioning seat 6, and the other end is connected to the bottom of the support block 51; the outer peripheral wall of the pressing roller 4 is connected to the outer peripheral wall of the winding roller 31;

[0023] By installing and cooperating with the positioning seat 6, the spring 61 and the support block 51, it is ensured that the wrapping film is in close contact with the winding roller 31 during the winding process, effectively preventing the wrapping film from wrinkling due to uneven tension or mechanical vibration during the winding process, thereby improving the quality of the wrapping film. At the same time, during the winding process, the pressure roller 4 can automatically adapt to the thickness of the winding roller 31 during winding through the spring 61, thereby ensuring the stable pressing of the wrapping film by the pressure roller 4 and improving the winding efficiency.

[0024] The adjustment mechanism is arranged on one side of the winding roller 31, and is used to adjust the tension of the winding of the wrapping film. The adjustment mechanism includes an adjustment frame 7, a driving device 72 and an adjustment roller 71; a support frame 8 is arranged on the workbench 1, the driving device 72 is arranged on the top of the support frame 8, the output end of the driving device 72 passes through the top of the support frame 8 and is connected to the adjustment frame 7, and the adjustment roller 71 is rotatably arranged between the adjustment frames 7; the adjustment roller 71 and the winding roller 31 are parallel to each other in the projection of the horizontal plane.

[0025] The drive device 72 drives the adjustment frame 7 to move, thereby driving the adjustment roller 71 to move up and down, so as to achieve real-time adjustment of the tension of the wrapping film. This dynamic adjustment method can quickly respond to changes in the production process, ensuring that the wrapping film is always rolled up under appropriate tension, thereby effectively avoiding wrinkles and loosening of the film material.

[0026] A slide groove 22 is formed on the inner side wall of the adjusting groove 21 , and the slide groove 22 penetrates through the side wall of the mounting frame 2 . A slider 52 is formed on the side wall of the rotating support 5 , and the slider 52 is slidably disposed in the slide groove 22 .

[0027] The cooperation between the slider 52 and the slide slot 22 makes the movement of the rotating support 5 and the pressure roller 4 more stable, which helps to ensure that the pressure roller 4 always remains parallel to the winding roller 31 during the adjustment process, thereby preventing the film material from being offset or wrinkled during the winding process.

[0028] The side wall of the mounting frame 2 is provided with a wing plate 23 , and the wing plate 23 is located below the slide slot 22 . The slider 52 is provided with a positioning bolt 9 , and the positioning bolt 9 penetrates the slider 52 and is connected to the wing plate 23 .

[0029] By setting a positioning bolt 9 to connect the slider 52 and the wing plate 23, after the winding roller 31 is wound, the pressure roller 4 can be limited to prevent the pressure roller 4 from continuing to abut against the outer wall of the winding roller 31, making it convenient for the operator to remove the winding roller 31 and improving the winding efficiency.

[0030] The axis of the pressing roller 4 and the axis of the winding roller 31 coincide with each other in projection on the horizontal plane.

[0031] By aligning the axis of the pressure roller 4 with the axis of the winding roller 31 on the horizontal plane, it is ensured that the pressure roller 4 can accurately press on the winding film on the winding roller 31, preventing the winding film from deviating during the winding process. At the same time, it can ensure that the winding film is subjected to uniform pressure during the winding process, reducing deformation or damage of the winding film caused by uneven pressure, and improving the quality of the winding film after winding.

[0032] The working principle of the utility model is as follows: First, after a series of production processes, the wrapping film is wound up by the winding mechanism. Before winding up, the adjusting frame 7 is driven by the driving device 72 to control the up and down movement of the adjusting roller 71, so as to realize the real-time adjustment of the tension of the wrapping film. The driving device 72 is preferably a cylinder; after adjusting the tension, the winding roller 31 is driven to rotate by the power device 3 to realize the winding of the wrapping film. The power device 3 is preferably a rotary motor. During the winding process, the pressure roller 4 is arranged in the adjustment slot 21 of the mounting frame 2 through the rotating support 5 and the support block 51, and the spring 61 in the positioning seat 6 is connected to the support block 51 to ensure that the pressure roller 4 can tightly press the wrapping film on the winding roller 31 during winding. As the thickness of the winding roller 31 gradually increases, the pressure roller 4 can automatically adapt to the thickness of the winding roller 31 during winding through the spring 61, thereby improving the winding efficiency.

[0033] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A wrinkle-proof film pressing device for producing wrapping film, comprising a workbench (1), a winding mechanism, a film pressing mechanism and an adjusting mechanism, wherein the winding mechanism comprises a mounting frame (2), a power device (3) and a winding roller (31); the mounting frame (2) is fixedly arranged on the workbench (1), the power device (3) is arranged on the side wall of the mounting frame (2), and its output end is connected to the winding roller (31), and both ends of the winding roller (31) are rotatably arranged on the mounting frame (2); It is characterized in that The film pressing mechanism comprises a pressing roller (4), a rotating support (5), a support block (51) and a positioning seat (6); the side wall of the mounting frame (2) is provided with an adjustment groove (21), the rotating support (5) is arranged in the adjustment groove (21), the support block (51) is arranged at the bottom of the rotating support (5), and both ends of the pressing roller (4) are rotatably arranged on the rotating support (5); The positioning seat (6) is fixedly arranged at the bottom of the adjusting groove (21); the bottom of the supporting block (51) is arranged in the positioning seat (6); and a spring (61) is arranged inside the positioning seat (6); one end of the spring (61) is connected to the inside of the positioning seat (6), and the other end is connected to the bottom of the supporting block (51); the outer peripheral wall of the pressure roller (4) is connected to the outer peripheral wall of the winding roller (31); the adjusting mechanism is arranged on one side of the winding roller (31) and is used to adjust the tension of the winding film.

2. The wrinkle-proof film pressing device for producing stretch film according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting frame (7), a driving device (72) and an adjusting roller (71); a supporting frame (8) is arranged on the workbench (1); the driving device (72) is arranged on the top of the supporting frame (8); an output end of the driving device (72) passes through the top of the supporting frame (8) and is connected to the adjusting frame (7); the adjusting roller (71) is rotatably arranged between the adjusting frames (7); the adjusting roller (71) and the winding roller (31) are parallel to each other in projection on a horizontal plane.

3. The wrinkle-proof film pressing device for producing stretch film according to claim 1, characterized in that: The inner side wall of the adjustment groove (21) is provided with a slide groove (22), and the slide groove (22) penetrates the side wall of the mounting frame (2). The side wall of the rotating support (5) is provided with a slider (52), and the slider (52) is slidably arranged in the slide groove (22).

4. The wrinkle-proof film pressing device for producing stretch film according to claim 3, characterized in that: The side wall of the mounting frame (2) is provided with a wing plate (23), the wing plate (23) is located below the slide groove (22), and the slider (52) is provided with a positioning bolt (9), the positioning bolt (9) passes through the slider (52) and is connected to the wing plate (23).

5. The wrinkle-proof film pressing device for producing stretch film according to claim 1, characterized in that: The axis of the pressing roller (4) and the axis of the winding roller (31) coincide with each other in projection on a horizontal plane.

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