A film winding roll

Abstract

The utility model discloses a film winding roller, its characterized in that, including upper half roller, lower half roller, roller shaft and elastic support piece, upper half roller and lower half roller are located the both sides of upper and lower of roller shaft, and lower half roller fixed mounting is in roller shaft, and upper half roller is detachable movable structure, and the clearance is formed between upper half roller and roller shaft, and upper half roller and lower half roller correspond to set up between upper and lower, upper half roller two ends are equipped with a plurality of sunken grooves, and upper half roller and lower half roller are fixed through bolt connection, and bolt is located in sunken groove, one end of elastic support piece is fixedly connected with the locating block, and the locating block is embedded in the locating groove between upper half roller and lower half roller, and the locating groove is located both ends of roller body, and elastic support piece is used for supporting film. The utility model has the effects of convenient dismounting, being convenient for respectively to the cleaning maintenance of each component of roller body, and elastic support piece can be flexibly bent with film winding radian and support the effect of film.

Description

Technical Field

[0001] This utility model relates to the field of film production technology, and more specifically, to a film take-up roller. Background Technology

[0002] Film production typically involves a winding process to facilitate subsequent storage, transportation, and processing. However, processes such as film slitting, lamination, and peeling often generate significant amounts of waste, including film edge scraps from slitting and release layers formed during peeling. This waste is often difficult to reuse effectively in subsequent production due to uneven dimensions, structural damage, or contamination. Therefore, while production lines often include dedicated waste winding units, these units primarily serve as temporary collection and storage facilities. After winding, the waste still needs to be completely removed from the winding rollers, a tedious and labor-intensive process that increases the complexity of subsequent waste handling.

[0003] Therefore, a new solution is needed to address this problem. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a film winding roller that is easy to disassemble and assemble, facilitates the cleaning and maintenance of each component of the roller, and has the effect of elastic support sheet that can bend elastically with the curvature of the film winding to support the film, and facilitates the unloading of the wound waste film.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a film winding roller, comprising an upper half roller, a lower half roller, a roller shaft, and an elastic support sheet. The upper half roller and the lower half roller are located on the upper and lower sides of the roller shaft, respectively. The lower half roller is fixedly installed on the roller shaft. The upper half roller is a detachable movable structure. A gap is formed between the upper half roller and the roller shaft. The upper half roller and the lower half roller are arranged vertically and vertically. Several grooves are formed at both ends of the upper half roller. The upper half roller and the lower half roller are fixedly connected by bolts, and the bolts are located in the grooves. A positioning block is fixedly connected to one end of the elastic support sheet. The positioning block is embedded in the positioning groove between the upper half roller and the lower half roller. The positioning groove is located at both ends of the roller body. The elastic support sheet is used to support the film.

[0006] By adopting the above solution, a separate, detachable upper and lower roller structure is used, which is fixed in place by bolts within the settling groove, enabling convenient disassembly and maintenance of the roller body. The gap between the upper roller and the roller shaft effectively accommodates and facilitates the removal of film debris, reducing cleaning difficulty. Simultaneously, the elastic support plates are embedded in the positioning grooves at both ends of the roller body via positioning blocks. During film winding, they elastically bend with the winding arc, providing uniform support, preventing film shifting and wrinkling, and improving winding quality and production efficiency.

[0007] The present invention is further configured such that a through hole is provided in the upper half roller, the through hole is connected to the settling trough, and a screw hole is provided in the lower half roller, the screw hole and the through hole having the same inner diameter and being arranged vertically in correspondence.

[0008] By adopting the above solution, a through hole communicating with the settling trough is opened in the upper half-roll, and a threaded hole with the same inner diameter is set at the corresponding position in the lower half-roll, allowing the upper and lower half-rolls to be aligned and reliably connected by bolts. This structure not only facilitates rapid positioning during assembly but also enhances connection stability, ensuring the structural integrity of the winding roll during high-speed operation.

[0009] The present invention is further configured such that the bolt is threadedly engaged with the through hole and the screw hole to fasten the upper half roller and the lower half roller, and the upper end of the bolt is integrally formed with a screw head, which is located in the sinker.

[0010] By adopting the above solution, the upper and lower half rollers are reliably fastened through the threaded engagement of bolts with through holes and screw holes; the one-piece molded screw head is hidden in the sinker, avoiding interference of the protruding structure with the film winding process, and ensuring the flatness and safety of the winding surface.

[0011] The present invention is further configured such that the depth of the sinker is greater than the thickness of the screw head, and the inner diameter of the sinker is greater than the outer diameter of the screw head.

[0012] By adopting the above scheme, by making the depth of the sinker greater than the thickness of the screw head and the inner diameter greater than the outer diameter of the screw head, it is ensured that the screw head is completely contained inside the sinker. This not only avoids the screw head protruding and causing scratches or interference to the film surface, but also keeps the outer surface of the roller flat and smooth, which is conducive to the uniform winding and protection of the film.

[0013] The present invention is further configured such that protrusions are integrally formed on the upper and lower sides of the positioning block, the upper surface of the protrusions abuts against the upper surface of the positioning groove, and the upper surface of the positioning block abuts against the upper surface of the positioning groove.

[0014] By adopting the above solution, the protrusions integrally formed on the upper and lower sides of the positioning block abut against the upper surface one and upper surface two of the positioning groove, respectively, thereby achieving dual axial and radial positioning and stable fixation of the elastic support sheet. This effectively prevents it from loosening or shifting during the winding process, thus ensuring the stability and reliability of the film support and improving the winding quality.

[0015] The present invention is further configured such that the upper surface one and the upper surface two of the positioning groove are distributed in a stepped manner, and the thickness of the protrusion is adapted to the distance between the upper surface one and the upper surface of the positioning block.

[0016] By adopting the above scheme, and through the stepped distribution of the upper surfaces one and two of the positioning grooves, which are adapted to the thickness of the protrusions, multi-directional constraint and tight fitting of the positioning blocks of the elastic support sheet are achieved. This structure not only enhances the stability of the assembly and effectively prevents the elastic support sheet from shifting during high-speed winding, but also simplifies the installation process and improves the reliability and service life of the overall structure.

[0017] The present invention is further configured such that the elastic support sheet is made of elastic plastic material.

[0018] By adopting the above solution, the elastic support sheet is made of elastic plastic material, giving it good flexibility and resilience. It can elastically bend according to the winding arc during film winding, thus providing close and uniform support to the film. This material selection effectively avoids film indentation or damage that may be caused by rigid contact, while its durability and fatigue resistance ensure the reliability of the elastic support sheet in long-term use.

[0019] The present invention is further configured such that the elastic support sheet can support the film, the elastic support sheet can be elastically bent, and a gap is formed between the elastic support sheet and the film.

[0020] By adopting the above scheme, the elastic support sheet can bend elastically while supporting the film, and a buffer gap is formed between it and the film surface. This structure can provide the necessary radial support to prevent the film from slack or shifting, and can also release local pressure through the gap, avoiding indentation or friction damage to the film due to excessive contact, thereby effectively protecting the surface quality of the film while ensuring the flatness of the winding.

[0021] The present invention is further configured such that the width of the gap is 1~3mm, and the gap is provided throughout the upper half roller along the axial length direction.

[0022] By adopting the above solution, a gap of 1-3 mm in width is set between the upper half roller and the roller shaft, extending axially throughout, providing a channel for the accumulation and discharge of film debris and impurities. This greatly facilitates daily cleaning and maintenance and prevents clogging and contamination. At the same time, this gap also helps to form a certain heat dissipation space during high-speed operation, enhancing the structural adaptability and service life of the winding roller.

[0023] The present invention is further configured such that the outer surfaces of both the upper and lower half rollers are treated with a frosted anti-slip finish.

[0024] By adopting the above solution, and applying a frosted anti-slip treatment to the outer surfaces of the upper and lower rollers, the coefficient of friction between the roller and the film contact surface is increased, effectively preventing the film from slipping, shifting, or wrinkling during the initial winding stage or high-speed operation. This treatment not only improves the stability and uniformity of winding but also enhances the durability and wear resistance of the roller, ensuring long-term reliability and film product quality.

[0025] In summary, this utility model has the following beneficial effects:

[0026] Two elastic support plates on the outer periphery of the roller body achieve stable assembly through the double abutment of the positioning block protrusion and the stepped positioning groove. The elastic support plates made of elastic plastic can bend elastically with the curvature of the film winding, and the gap reserved between them can buffer tension fluctuations. During the winding process, the elastic support plates are placed between the film and the winding roller body, which can prevent the film from directly sticking to the winding roller body. Moreover, the elastic support plates will not directly stick to the roller body after elastic bending. After winding, it can avoid excessive frictional resistance between the film material and the roller body. By loosening the elastic support plates, the film and the roller body can be separated from each other. The middle roller body can be pulled out by axial pulling, which makes it easy to remove the wound film material from the wound roller body. Attached Figure Description

[0027] Figure 1 This is a perspective view of a film take-up roller in this embodiment;

[0028] Figure 2 This is a cross-sectional view of a film take-up roller in this embodiment when the roller body is fastened;

[0029] Figure 3 This is a cross-sectional view of a film take-up roller in this embodiment when the roller body is separated;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a cross-sectional view of a film winding roller winding film in this embodiment.

[0032] Reference numerals: Upper half roller 101; Lower half roller 102; Gap 103; Roller shaft 2; Elastic support plate 3; Screw hole 41; Sink 42; Through hole 43; Bolt 51; Screw head 52; Positioning block 61; Protrusion 62; Positioning groove 7; Upper surface one 71; Upper surface two 72; Film 8. Detailed Implementation

[0033] 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.

[0034] This embodiment discloses a film take-up roller, referring to... Figures 1-5 As shown, it includes an upper half roller 101, a lower half roller 102, a roller shaft 2, and an elastic support plate 3. The cross-sectional shapes of the upper half roller 101 and the lower half roller 102 are approximately semi-circular. The upper half roller 101 and the lower half roller 102 are located on the upper and lower sides of the roller shaft 2, respectively. The lower half roller 102 is fixedly installed on the roller shaft 2, while the upper half roller 101 is a detachable and movable structure.

[0035] A semi-circular recess is formed on the side of the upper half roller 101 facing the roller shaft 2. The recess corresponds to the roller shaft 2. A gap 103 with a width of 1~3mm is formed between the recess and the outer circumferential surface of the roller shaft 2.

[0036] Reference Figure 2 As shown, the upper half roller 101 and the lower half roller 102 are connected and fixed by bolts 51. Several grooves 42 are provided at both ends of the upper half roller 101 to accommodate the screw heads 52 of the connecting bolts 51, maintaining the flatness of the roller surface. Simultaneously, through holes 43 are provided inside the upper half roller 101, each through hole 43 communicating with a corresponding groove 42. Screw holes 41 are provided inside the lower half roller 102, arranged vertically to ensure accurate alignment during installation. The bolts 51 pass through the grooves 42 and through holes 43 in sequence and are then screwed into the screw holes 41, with their screw heads completely submerged inside the grooves 42. This not only ensures a firm and reliable connection but also prevents the protruding structure from interfering with the film 8 winding process.

[0037] Bolt 51, through its threaded engagement with through hole 43 and screw hole 41, reliably fastens the upper half roller 101 and lower half roller 102, ensuring a stable connection during operation. Bolt 51 has an integrally formed screw head 52 at its upper end, which, after assembly, is completely contained within the recess 42. The depth of the recess 42 is greater than the thickness of the screw head 52, and the inner diameter of the recess 42 is also greater than the outer diameter of the screw head 52. This design allows for adequate clearance for the screw head 52 within the recess 42, preventing it from protruding from the roller surface and interfering with the film 8 winding. It also facilitates tool disassembly, cleaning, and maintenance, thus combining structural concealment, functionality, and ease of use.

[0038] By opening a through hole 43 in the upper half roller 101 that communicates with the groove 42, and setting a screw hole 41 with the same inner diameter at the corresponding position in the lower half roller 102, the upper and lower half rollers can be aligned and reliably connected by bolts 51. The screw 51 and the through hole 43 and screw hole 41 are reliably fastened to the upper half roller 101 and the lower half roller 102 through the threaded engagement of the bolts 51 with the through hole 43 and screw hole 41. The integrally formed screw head 52 is hidden in the groove 42, avoiding interference of the protruding structure with the winding process of the film 8. By making the depth of the groove 42 greater than the thickness of the screw head 52 and the inner diameter greater than the outer diameter of the screw head 52, it is ensured that the screw head 52 is completely accommodated inside the groove 42. This not only avoids the screw head 52 protruding and causing scratches or interference to the surface of the film 8, but also keeps the outer surface of the roller flat and smooth, which is conducive to the uniform winding and protection of the film 8.

[0039] Reference Figure 4 As shown, the elastic support piece 3 is one-third of the outer circumference of the upper half roller. A positioning block 61 is fixedly connected to one end of the elastic support piece 3. The positioning block 61 has protrusions 62 integrally formed on both the upper and lower sides. The positioning block 61 is embedded in the positioning groove 7 provided between the upper half roller 101 and the lower half roller 102. The positioning groove 7 is located at both ends of the roller body. The positioning groove 7 is set as a stepped structure, including an upper surface 71 and an upper surface 72. The thickness of the protrusion 62 is adapted to the distance from the upper surface 71 to the upper surface of the positioning block 61, so that the upper surface of the protrusion 62 abuts against the upper surface 71 of the positioning groove 7, while the upper surface of the positioning block 61 is stably attached to the upper surface 72 of the positioning groove 7.

[0040] The stepped positioning grooves, with their upper surfaces 71 and 72, and adapted to the thickness of the protrusions 62, achieve multi-directional constraint and tight fit of the positioning block 61 of the elastic support piece 3. The protrusions 62, integrally formed on both the upper and lower sides of the positioning block 61, abut against the upper surfaces 71 and 72 of the positioning grooves 7, respectively, achieving dual axial and radial positioning and stable fixation of the elastic support piece 3, effectively preventing loosening or displacement during winding.

[0041] Reference Figure 5 As shown, the elastic support sheet 3 is made of elastic plastic material, giving it good flexibility and resilience. When the film 8 is wound onto the take-up roller, the elastic support sheet 3 not only supports the film 8 but also elastically bends under the tension of the film 8, forming a buffer gap between the film 8 and the outer periphery of the roller. This structure prevents the film 8 from directly adhering to the take-up roller, thus facilitating the removal of the wound film from the take-up roller.

[0042] By loosening bolt 51, the upper half roller 101 and the lower half roller 102 can be separated, the clamping pressure on both sides of the positioning block 61 disappears, and the positioning block 61 is in a relaxed and movable state. At this time, the positioning block 61 is pulled out from the positioning groove 7 in the axial direction, and the elastic support plate 3 and the positioning block 61 can be axially disassembled and separated from the upper half roller 101 and the lower half roller 102 simultaneously.

[0043] The elastic support plates 3 at both ends of the roller body are stably assembled through the double contact of the positioning block protrusion 62 and the stepped positioning groove 7. This allows for the replacement of elastic support plates 3 of different lengths according to the specifications of the film 8 to adapt to the winding requirements of multiple types and specifications of film 8, thereby improving the versatility of the equipment. It also prevents the elastic support plates from loosening and falling off in the vibration environment of high-speed winding, ensuring production continuity. Furthermore, the elastic support plates 3 made of elastic plastic can bend elastically with the curvature of the film 8, and the gap reserved between them can buffer tension fluctuations.

[0044] In this embodiment, a film take-up roller is used such that the starting end of the waste film is attached to the surface of the elastic support sheet 3, and the take-up process is initiated. As the roller shaft 2 rotates, the elastic support sheet 3 bends in a roughly arc shape, and the waste film is continuously wound onto the roller body composed of the upper half roller 101 and the lower half roller 102. Due to the presence of the elastic support sheet 3, the film 8 will not completely adhere to the outer periphery of the roller body, and there is also a certain gap between the bent elastic support sheet 3 and the outer periphery of the take-up roller body, which facilitates subsequent disassembly.

[0045] After the film has been wound to the desired thickness, winding is stopped and the entire take-up roller is removed. Then, bolt 51 is loosened, separating the upper half-roller 101 from the lower half-roller 102. At this point, the clamping force on the positioning block 61, which was previously pressed tightly into the positioning groove 7, is released, restoring it to a freely movable state. The operator can then pull the positioning block 61 and its connected support piece 3 out of the positioning groove 7 along the axial direction, completely separating the entire roll of waste film from the roller structure. This allows for convenient and complete removal of the film 8 wound on the take-up roller. This design improves the efficiency and ease of operation of film 8 removal and installation.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A film take-up roller, characterized in that, It includes an upper half roller (101), a lower half roller (102), a roller shaft (2), and an elastic support plate (3). The upper half roller (101) and the lower half roller (102) are located on the upper and lower sides of the roller shaft (2). The lower half roller (102) is fixedly installed on the roller shaft (2). The upper half roller (101) is a detachable movable structure. A gap (103) is formed between the upper half roller (101) and the roller shaft (2). The upper half roller (101) and the lower half roller (102) are arranged vertically and vertically respectively. The upper half roller (101) has several grooves (42) at both ends. The upper half roller (101) and the lower half roller (102) are connected and fixed by bolts (51), and the bolts (51) are located in the grooves (42). One end of the elastic support sheet (3) is fixedly connected to a positioning block (61). The positioning block (61) is embedded in the positioning groove (7) between the upper half roller (101) and the lower half roller (102). The positioning groove (7) is located at both ends of the roller body. The elastic support sheet (3) is used to support the film (8).

2. A film take-up roller according to claim 1, characterized in that, The upper half roller (101) has a through hole (43) connected to the sinker (42), and the lower half roller (102) has a screw hole (41) with the same inner diameter as the through hole (43) and is arranged vertically.

3. A film take-up roller according to claim 2, characterized in that, The bolt (51) is threaded into the through hole (43) and the screw hole (41) to fasten the upper half roller (101) and the lower half roller (102). The upper end of the bolt (51) is integrally formed with a screw head (52), which is located in the sinker (42).

4. A film take-up roller according to claim 3, characterized in that, The depth of the groove (42) is greater than the thickness of the screw head (52), and the inner diameter of the groove (42) is greater than the outer diameter of the screw head (52).

5. A film take-up roller according to claim 1, characterized in that, The positioning block (61) has protrusions (62) integrally formed on both the upper and lower sides. The upper surface of the protrusion (62) abuts against the upper surface one (71) of the positioning groove (7), and the upper surface of the positioning block (61) abuts against the upper surface two (72) of the positioning groove (7).

6. A film take-up roller according to claim 5, characterized in that, The upper surface one (71) and upper surface two (72) of the positioning groove (7) are distributed in a stepped manner, and the thickness of the protrusion (62) is adapted to the distance between the upper surface one (71) and the upper surface of the positioning block (61).

7. A film take-up roller according to claim 1, characterized in that, The elastic support sheet (3) is made of elastic plastic material.

8. A film take-up roller according to claim 7, characterized in that, The elastic support sheet (3) can support the film (8), and the elastic support sheet (3) can be elastically bent and form a gap with the film (8).

9. A film take-up roller according to claim 1, characterized in that, The width of the gap (103) is 1~3mm, and the gap (103) is provided throughout the axial length direction of the upper half roller (101).

10. A film take-up roller according to claim 1, characterized in that, The outer surfaces of both the upper half roller (101) and the lower half roller (102) are treated with a sanding anti-slip finish.

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