Plastic film winding roller

Abstract

The utility model discloses a plastic film winding roller which comprises a first roller body and a second roller body which are used for winding a plastic film, installation cavities are formed in the first roller body and the second roller body respectively, and tensioning parts are installed in the installation cavities respectively. The first roller body and the second roller body are connected through an adjusting component, and the adjusting component is in transmission connection with the tensioning component. A locking component is installed at one end of the second roller body and connected with the tensioning component. The plastic film winding drum clamping device can simultaneously clamp and fix plastic film winding drums with different diameters and plastic film winding drums with different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of winding rollers, and particularly relates to a plastic film winding roller. Background Technique

[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins are used for packaging and as laminating layers. Plastic packaging has been widely used in the fields of food, medicine, chemical industry, etc., among which food packaging accounts for the largest proportion, such as beverage packaging, frozen food packaging, cooked food packaging, fast food packaging, etc.

[0003] The patent with the Chinese patent publication number CN220222861U, whose publication date is December 22, 2023, discloses a winding roller for packaging film production, including a rotating plate. A winding roller for sleeving a winding cylinder is fixedly and rotatably arranged on the rotating plate. The winding roller is hollow. A retaining ring is fixedly arranged on the outer surface of the left side of the winding roller. A positioning component for positioning the winding cylinder is slidably arranged left and right on the winding roller. A fixing component for fixing the winding cylinder is arranged on the winding roller. The positioning component includes a slider. The slider is slidably arranged left and right in the winding roller through a sliding component. Positioning holes are formed on the outer surface of the slider. A positioning column is arranged in the positioning holes. The positioning column is fixedly arranged in the positioning holes of the slider through a spring. The positioning column protrudes from the outer surface of the winding roller. A first driving component for driving the slider to move left and right is arranged on the winding roller.

[0004] The above patent can solve the corresponding technical problems and can fix winding cylinders with different diameters, but it cannot adjust the use length of the winding roller, which results in the winding roller being unable to adapt to operating on winding cylinders with different lengths and reduces the practicability of the winding roller. Content of the Utility Model

[0005] The purpose of the utility model is to provide a plastic film winding roller to solve the problem that the prior art cannot adjust the use length of the winding roller, which results in the winding roller being unable to adapt to operating on winding cylinders with different lengths and reduces the practicability of the winding roller.

[0006] To achieve the above purpose, the main technical solutions adopted by the utility model include: a plastic film winding roller, including: a first roller body and a second roller body for winding plastic film. Installation cavities are arranged inside the first roller body and the second roller body, and tensioning components are installed inside the installation cavities; the first roller body and the second roller body are connected through an adjusting component, and the adjusting component is in transmission connection with the tensioning component; a locking component is installed at one end of the second roller body, and the locking component is connected with the tensioning component.

[0007] As a preferred technical solution, the tensioning member includes a mounting plate, a shaft rod, a turntable, a clamping plate and a handwheel. The mounting plate is fixedly installed on the inner wall of the installation cavity through a fixing rod. Sliding grooves are formed on the arms of the mounting plate in different directions. A slider is slidably installed inside the sliding groove. The clamping plate is fixedly installed at one end of the slider. A shifting rod is fixedly installed on the slider. A fourth bearing is fixedly installed at the central part of the mounting plate. The shaft rod is fixedly installed in the inner ring of the fourth bearing, and the shaft rod is fixedly connected to the central part of the turntable. A limiting hole is formed on the turntable, and the shifting rod is inserted into the limiting hole;

[0008] Perforations for the outward expansion of the clamping plate are formed on both the first roller body and the second roller body;

[0009] A third bearing is fixedly installed at one end of the second roller body. The shaft rod inside the second roller body is fixedly installed in the inner ring of the third bearing, and one end of the shaft rod extends to the outside of the second roller body and is fixedly connected to one end of the handwheel.

[0010] As a preferred technical solution, the adjusting member includes a connecting rod, an adjusting rod and a compression bolt; among them

[0011] A first round rod is integrally formed at one end of the connecting rod. One end of the first round rod is fixedly connected to one end of the shaft rod inside the first roller body. A slot is formed at one end of the connecting rod. One end of the adjusting rod is fitted and inserted into the slot. A second round rod is integrally formed at one end of the adjusting rod. One end of the second round rod is fixedly connected to one end of the shaft rod inside the second roller body. A plurality of equally spaced limiting grooves are formed at the top of the adjusting rod. A threaded hole is formed on the connecting rod. The compression bolt is threadedly installed in the threaded hole and one end abuts against the inside of the limiting groove.

[0012] As a preferred technical solution, a first bearing is fixedly installed at one end of the first roller body. One end of the first round rod is fixedly installed in the inner ring of the first bearing;

[0013] Second bearings are fixedly installed at one end of each of the second roller bodies. One end of the second round rod is fixedly installed in the inner ring of the second bearing.

[0014] As a preferred technical solution, a telescopic rod is fixedly installed on the first roller body. The telescopic rod includes an outer rod and an inner rod that is movably inserted into one end of the outer rod. The inner rod is fixedly connected to one end of the second roller body.

[0015] As a preferred technical solution, the locking component includes a fixing frame fixedly installed at the outer end of the second roller body. A handle bolt is threadedly installed on the fixing frame. One end of the handwheel is provided with a threaded groove, and one end of the handle bolt is threadedly installed inside the threaded groove.

[0016] As a preferred technical solution, a pressing sleeve is threadedly installed on the handle bolt.

[0017] The utility model has at least the following beneficial effects:

[0018] First, by inserting the plastic film winding tube into the second roller body, the plastic film winding tube is sleeved outside the first roller body and the second roller body. Then, by rotating the handwheel, the shaft rod is driven to rotate. The rotation of the shaft rod drives the turntables inside the first roller body and the second roller body to rotate synchronously. During the rotation of the turntable, due to the continuous deviation of the angle of the limiting holes, the shifting rods can be in different positions inside the limiting holes, so that the sliders can be contracted inside the sliding grooves during the rotation of the turntable, and further drive the clamping plates to stretch inside the through holes, so that the plurality of clamping plates simultaneously tension the two ends of the inner wall of the plastic film winding tube. Then, the adjusted handwheel is connected and limited by the handle bolt, so as to limit and fix the tensioned clamping plates, and complete the clamping and fixing of the plastic film winding tube, meeting the clamping of plastic film winding tubes with different diameters;

[0019] By moving the adjusting rod to different positions inside the slot, and then installing the pressing bolt in different limiting slots, the use length of the connecting rod can be adjusted, facilitating the clamping of plastic film winding tubes with different lengths.

[0020] Second, the telescopic rod can synchronously stretch and contract with the use length of the connecting rod, increasing the stability of the connection between the first roller body and the second roller body.

[0021] Third, the pressing sleeve presses against the outer side of the fixing frame, which can further increase the stability of limiting and fixing the clamping plates.

[0022] Fourth, the first bearing and the second bearing can increase the installation stability of the connecting rod and the adjusting rod, and further improve the stability of the clamping plates to tension the plastic film winding tube. Description of the Drawings

[0023] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0024] Figure 1 is a three-dimensional view of a plastic film winding roller of the present utility model;

[0025] Figure 2 Cross-sectional view of a plastic film winding roller of the present utility model;

[0026] Figure 3 Schematic diagram of the first perspective of the installation of the tensioning component of a plastic film winding roller of the present utility model;

[0027] Figure 4 Schematic diagram of the second perspective of the installation of the tensioning component of a plastic film winding roller of the present utility model;

[0028] Figure 5 Exploded view of the partial structure of the tensioning component of a plastic film winding roller of the present utility model;

[0029] Figure 6 Exploded view of the adjusting component of a plastic film winding roller of the present utility model;

[0030] Figure 7 Schematic diagram of the structure of the locking component of a plastic film winding roller of the present utility model.

[0031] Explanation of the reference numerals in the attached drawings:

[0032] 1. First roller body; 101. First bearing; 102. Telescopic rod; 2. Second roller body; 201. Second bearing; 202. Fixed frame; 2021. Handle bolt; 2022. Compression sleeve; 203. Third bearing; 3. Fixed rod; 4. Mounting plate; 401. Fourth bearing; 402. Slide groove; 403. Slide block; 404. Poking rod; 405. Clamping plate; 5. Shaft rod; 6. Turntable; 601. Limit hole; 7. Perforation; 8. Connecting rod; 801. Compression bolt; 802. First round rod; 803. Slot; 804. Threaded hole; 9. Adjusting rod; 901. Second round rod; 902. Limit groove; 10. Handwheel; 1001. Threaded groove. Specific embodiments

[0033] The following will detail the implementation manners of the present application in conjunction with the accompanying drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0034] Embodiment

[0035] Please refer to Figures 1 to 7 As shown, the embodiment of the present utility model provides a plastic film winding roller, including: a first roller body 1 and a second roller body 2 for winding plastic film. Installation cavities are provided inside both the first roller body 1 and the second roller body 2, and tensioning components are installed inside the installation cavities;

[0036] The first roller body 1 and the second roller body 2 are connected by an adjusting component, and the adjusting component is in transmission connection with the tensioning component;

[0037] A locking component is installed at one end of the second roller body 2, and the locking component is connected to the tensioning component.

[0038] Among them, the tensioning component includes a mounting plate 4, a shaft rod 5, a turntable 6, a clamping plate 405 and a handwheel 10. The mounting plate 4 is fixedly installed on the inner wall of the installation cavity through a fixing rod 3. Chute 402 is provided on the arms in different directions of the mounting plate 4. A slider 403 is slidably installed inside the chute 402. The clamping plate 405 is fixedly installed at one end of the slider 403. A lever 404 is fixedly installed on the slider 403. A fourth bearing 401 is fixedly installed at the central part of the mounting plate 4. The shaft rod 5 is fixedly installed in the inner ring of the fourth bearing 401, and the shaft rod 5 is fixedly connected to the central part of the turntable 6. A limiting hole 601 is provided on the turntable 6. The lever 404 is inserted inside the limiting hole 601; Through holes 7 for the clamping plate 405 to expand outward are provided on both the first roller body 1 and the second roller body 2; A third bearing 203 is fixedly installed at one end of the second roller body 2. The shaft rod 5 inside the second roller body 2 is fixedly installed in the inner ring of the third bearing 203, and one end of the shaft rod 5 extends to the outside of the second roller body 2 and is fixedly connected to one end of the handwheel 10. By rotating the handwheel 10, the shaft rod 5 is driven to rotate. The rotation of the shaft rod 5 drives the turntables 6 inside the first roller body 1 and the second roller body 2 to rotate synchronously. During the rotation of the turntable 6, due to the continuous deviation of the angle of the limiting hole 601, the lever 404 can be in different positions inside the limiting hole 601, so that the slider 403 can be driven to contract inside the chute 402 during the rotation of the turntable 6, and then drive the clamping plate 405 to expand and contract inside the through hole 7, which can meet the clamping of plastic film winding drums with different diameters. The limiting hole 601 has an arc-shaped structure, which is convenient for contacting and sliding with the lever 404.

[0039] Among them, the adjusting component includes a connecting rod 8, an adjusting rod 9 and a pressing bolt 801; One end of the connecting rod 8 is integrally formed with a first round rod 802, and one end of the first round rod 802 is fixedly connected to one end of the shaft rod 5 inside the first roller body 1. A slot 803 is provided at one end of the connecting rod 8. One end of the adjusting rod 9 is fitted and inserted inside the slot 803. One end of the adjusting rod 9 is integrally formed with a second round rod 901, and one end of the second round rod 901 is fixedly connected to one end of the shaft rod 5 inside the second roller body 2. A plurality of equally spaced limiting slots 902 are provided at the top of the adjusting rod 9. A threaded hole 804 is provided on the connecting rod 8. The pressing bolt 801 is threadedly installed inside the threaded hole 804 and one end abuts inside the limiting slot 902. By installing the pressing bolt 801 inside different limiting slots 902, the use length of the connecting rod 8 can be adjusted, which is convenient for clamping plastic film winding drums with different lengths. By connecting the connecting rod 8 and the adjusting rod 9 with the pressing bolt 801, the adjustment operation is convenient.

[0040] One end of the first roller body 1 is fixedly installed with a first bearing 101, and one end of the first round rod 802 is fixedly installed in the inner ring of the first bearing 101; one end of each of the second roller bodies 2 is fixedly installed with a second bearing 201, and one end of the second round rod 901 is fixedly installed in the inner ring of the second bearing 201. The first bearing 101 and the second bearing 201 can increase the installation stability of the connecting rod 8 and the adjusting rod 9, and further improve the tensioning stability of the clamping plate 405 on the plastic film winding drum.

[0041] An expansion rod 102 is fixedly installed on the first roller body 1. The expansion rod 102 includes an outer rod and an inner rod movably inserted into one end of the outer rod. The inner rod is fixedly connected to one end of the second roller body 2. The expansion rod 102 can synchronously expand and contract with the use length of the connecting rod 8, increasing the connection stability between the first roller body 1 and the second roller body 2.

[0042] The locking component includes a fixed frame 202 fixedly installed on the outer end of the second roller body 2. A handle bolt 2021 is threadedly installed on the fixed frame 202. One end of the handwheel 10 is provided with a threaded groove 1001, and one end of the handle bolt 2021 is threadedly installed inside the threaded groove 1001. The adjusted handwheel 10 is connected and limited by the handle bolt 2021, thereby realizing the limiting and fixing of the tensioned clamping plate 405, and effectively clamping and fixing the plastic film winding drum.

[0043] A pressing sleeve 2022 is threadedly installed on the handle bolt 2021. The pressing sleeve 2022 is arranged on the outside of the fixed frame 202, and the pressing sleeve 2022 presses against the outside of the fixed frame 202, which can further increase the limiting and fixing stability of the clamping plate 405.

[0044] Working principle: During use, one end of the first roller body 1 is connected to the motor. The plastic film winding drum is inserted from the second roller body 2, so that the plastic film winding drum is sleeved outside the first roller body 1 and the second roller body 2. Then, by rotating the handwheel 10, the shaft rod 5 is driven to rotate. The rotation of the shaft rod 5 drives the internal turntables 6 of the first roller body 1 and the second roller body 2 to rotate synchronously. During the rotation of the turntable 6, due to the continuous offset of the angle of the limiting hole 601, the dial rod 404 can be in different positions inside the limiting hole 601, so that the slider 403 can be contracted inside the chute 402 during the rotation of the turntable 6, and then drive the clamping plate 405 to expand and contract inside the through hole 7, so that a plurality of clamping plates 405 simultaneously tension the inner wall ends of the plastic film winding drum. Then, the adjusted handwheel 10 is connected and limited by the handle bolt 2021, thereby realizing the limiting and fixing of the tensioned clamping plate 405, completing the clamping and fixing of the plastic film winding drum, and meeting the clamping of plastic film winding drums with different diameters;

[0045] When it is necessary to adjust the use length of the winding roller, move the adjusting rod 9 to change its position inside the slot 803, and then by installing the pressing bolt 801 inside different limiting slots 902, the use length of the connecting rod 8 can be adjusted, which is convenient for clamping plastic film winding drums of different lengths.

[0046] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A plastic film winding roller, characterized in that: include: A first roller body (1) and a second roller body (2) for rolling up a plastic film, wherein the first roller body (1) and the second roller body (2) are both provided with mounting cavities, and tensioning components are both installed in the mounting cavities; The first roller body (1) and the second roller body (2) are connected via an adjusting component, and the adjusting component is transmission-connected to the tensioning component; A locking component is installed at one end of the second roller body (2), and the locking component is connected to the tensioning component.

2. The plastic film winding roller according to claim 1, characterized in that: The tensioning component comprises a mounting plate (4), an axle (5), a rotating disk (6), a clamping plate (405) and a hand wheel (10); the mounting plate (4) is fixedly mounted on the inner wall of the mounting cavity by a fixing rod (3); sliding grooves (402) are provided on different direction arms of the mounting plate (4); a slider (403) is slidably mounted inside the sliding groove (402); the clamping plate (405) is fixedly mounted on one end of the slider (403); a lever (404) is fixedly mounted on the slider (403); a fourth bearing (401) is fixedly mounted at the center of the mounting plate (4); the axle (5) is fixedly mounted in the inner ring of the fourth bearing (401); the axle (5) is fixedly connected to the center of the rotating disk (6); a limiting hole (601) is provided on the rotating disk (6); the lever (404) is inserted into the inside of the limiting hole (601); The first roller body (1) and the second roller body (2) are both provided with a perforation (7) for the clamping plate (405) to be stretched outward; A third bearing (203) is fixedly mounted on one end of the second roller body (2); the shaft rod (5) is fixedly mounted inside the second roller body (2) in the inner ring of the third bearing (203); and one end of the shaft rod (5) extends to the outside of the second roller body (2) and is fixedly connected to one end of the hand wheel (10).

3. The plastic film winding roller according to claim 2, characterized in that: The adjusting component comprises a connecting rod (8), an adjusting rod (9) and a clamping bolt (801); wherein A first round rod (802) is integrally formed at one end of the connecting rod (8), and one end of the first round rod (802) is fixedly connected to one end of the shaft rod (5) inside the first roller body (1). A slot (803) is provided at one end of the connecting rod (8), and one end of the adjusting rod (9) is inserted into the slot (803). A second round rod (901) is integrally formed at one end of the adjusting rod (9), and one end of the second round rod (901) is fixedly connected to one end of the shaft rod (5) inside the second roller body (2). A plurality of equally spaced limiting grooves (902) are provided at the top of the adjusting rod (9), and a threaded hole (804) is provided on the connecting rod (8). The clamping bolt (801) is threadedly mounted inside the threaded hole (804) and one end of the clamping bolt abuts against the inside of the limiting groove (902).

4. The plastic film winding roller according to claim 3, characterized in that: A first bearing (101) is fixedly mounted on one end of the first roller body (1), and one end of the first round rod (802) is fixedly mounted in the inner ring of the first bearing (101); A second bearing (201) is fixedly mounted on one end of the second roller body (2), and one end of the second round rod (901) is fixedly mounted in the inner ring of the second bearing (201).

5. The plastic film winding roller according to claim 2, characterized in that: A telescopic rod (102) is fixedly mounted on the first roller body (1), the telescopic rod (102) comprising an outer rod and an inner rod movably plugged into one end of the outer rod, the inner rod being fixedly connected to one end of the second roller body (2).

6. The plastic film winding roller according to claim 2, characterized in that: The locking component comprises a fixing frame (202) fixedly mounted on the outer end of the second roller body (2), a handle bolt (2021) being threadedly mounted on the fixing frame (202), a thread groove (1001) being formed at one end of the hand wheel (10), and one end of the handle bolt (2021) being threadedly mounted inside the thread groove (1001).

7. The plastic film winding roller according to claim 6, characterized in that: A compression screw sleeve (2022) is threadedly mounted on the handle bolt (2021).

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