Slitting and rewinding device for plastic bag production

Abstract

The utility model discloses a slitting rewinding device for plastic bag production, which relates to the technical field of plastic bag production and comprises a workbench, mounting frames are correspondingly and fixedly mounted on two sides of the upper end face of the workbench, sliders are mounted in the mounting frames in an up-down sliding manner, a compression roller is rotatably mounted between the two sliders, toothed bars are fixedly mounted on the mounting frames, and the toothed bars are fixedly mounted on the upper end face of the workbench. One-way bearings are fixedly installed at the two ends of the pressing roller, and the outer side of the pressing roller is fixedly connected with inner rings of the one-way bearings; gears are fixedly installed on the outer rings of the one-way bearings, through clockwise rotation of the gears, when the pressing roller makes contact with a plastic bag below the mounting frame, the plastic bag between the mounting frame and the winding roller can be partially smoothed out due to clockwise rotation of the pressing roller, and the plastic bag is converted into a tensioned state from a loose state; therefore, when the winding roller winds the plastic bag, the friction force between the plastic bag and the pressing roller cannot drive the pressing roller to rotate anticlockwise, and the tightness of the rewinding plastic bag is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic bag production, especially relates to a slitting and rewinding device for plastic bag production. BACKGROUND

[0002] Plastic bags are bags made of plastic as the main raw material, which are essential in people's daily life, and are often used to pack other items. They are widely used because of their low cost, extremely light weight, large capacity and convenient storage.

[0003] The slitting and rewinding device for plastic bag production disclosed in Chinese patent CN221875957U includes a fixed plate, a threaded rod is rotatably connected to the upper end of both sides of the fixed plate, a threaded block is threadedly connected to the middle of the threaded rod, rubber blocks are fixedly connected between the threaded blocks, a fixed frame is fixedly connected to the upper middle of the fixed plate, a sliding groove is formed in the middle of the fixed frame, a cutting knife is slidingly fitted in the sliding groove, mounting side plates are provided on both sides of the other end of the upper of the fixed plate, threaded holes are formed in the bottom of both sides of one end of the mounting side plates, and the threaded holes and the fixed plate are bolted, and the other end of the mounting side plates is fixedly connected with the fixed plate.

[0004] The above-mentioned device, when in use, keeps the plastic bag in a tension state by the rubber block bottom end and the plastic bag completing the resistance, but the operator needs to manually pull the plastic bag away from the rewinding drum to make the plastic bag become a tension state, that is, the rubber block in the device can only keep the plastic bag in a tension state, and cannot make the plastic bag have a relaxation state to become a tension state, and the operator needs to manually operate, thereby reducing the work efficiency.

[0005] To solve the above-mentioned problems, the utility model provides a slitting and rewinding device for plastic bag production. UTILITY MODEL CONTENTS

[0006] To solve the problems in the background art, the utility model provides a slitting and rewinding device for plastic bag production.

[0007] To achieve the above-mentioned purposes, the utility model provides the following technical scheme: a slitting and rewinding device for plastic bag production, including a workbench, corresponding fixed mounting frames are fixedly installed on both sides of the upper end face of the workbench, sliding blocks are slidingly installed in the inside of the mounting frames, a compression roller is rotatably installed between the two sliding blocks, toothed rods are fixedly installed on the mounting frames, unidirectional bearings are fixedly installed on both ends of the compression roller, and the outer side of the compression roller is fixedly connected with the inner ring of the unidirectional bearing; the outer ring of the unidirectional bearing is fixedly installed with a gear, and the gear is meshingly connected with the toothed rod; a shearing assembly is arranged on the middle of the upper end face of the workbench; a rewinding assembly is arranged on the side of the workbench away from the mounting frame.

[0008] Preferably, the inner part of the mounting frame is fixedly installed with a sliding rail, and a sliding block is slidingly installed in the sliding rail.

[0009] Preferably, the shearing assembly comprises a telescopic rod, a cutter and a cutting frame; the cutting frame is fixedly installed on the upper end face of the workbench, the cutter is movably arranged on the inner side of the cutting frame, the telescopic rod is fixedly installed on the lower end face of the workbench, and the telescopic rod is fixedly connected with the cutter.

[0010] Preferably, the winding assembly comprises a motor and a winding roller; the upper end face of the workbench is fixedly installed with a support plate on each side, the winding roller is rotatably arranged between the two support plates, the motor is fixedly installed on one of the support plates, the output shaft of the motor is fixedly connected with one end of the winding roller, and the other end of the winding roller is rotatably connected with the other support plate.

[0011] Beneficial effects

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The plastic bag production uses the device, through the gear clockwise rotation, when the compression roller and the mounting frame below the plastic bag contact, because the compression roller clockwise rotation, can make the mounting frame and the winding roller between the plastic bag part to smooth, make the plastic bag from the slack state to the tension state, because the gear is equipped with the one-way bearing, therefore the winding roller in winding the plastic bag, the friction between the plastic bag and the compression roller cannot drive the compression roller counterclockwise rotation, and then guarantee the mounting frame and the winding roller between the plastic bag continuously in the tension state, carry out the rewinding operation to the plastic bag, guarantee the compactness of the rewinding plastic bag, improve the rewinding layer number of single winding roller. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further illustrated in connection with the drawings and examples as follows:

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the local structure schematic diagram of the utility model;

[0017] Figure 3 It is the utility model Figure 1 The enlarged schematic diagram of A in the utility model.

[0018] Fig. 1 workbench 2 telescopic rod 3 cutter 4 motor 5 winding roller 6 cutting frame 7 mounting frame 8 cylinder 9 compression roller 10 rack 11 one-way bearing 12 gear 13 sliding rail 14 sliding block. DETAILED DESCRIPTION

[0019] The detailed embodiments of the utility model will be described in detail in this part, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0020] Please refer to Figures 1-3 The utility model provides a kind of technical scheme: a kind of slitting rewinding device for plastic bag production, including workbench 1, the upper end face both sides of workbench 1 are correspondingly fixedly installed with mounting bracket 7.

[0021] The inside of mounting bracket 7 is slidably installed with sliding block 14. The inside of mounting bracket 7 is fixedly installed with sliding rail 13, and sliding block 14 is slidably installed in sliding rail 13. The upper end face of mounting bracket 7 is fixedly installed with cylinder 8, and the telescopic end of cylinder 8 is fixedly connected with corresponding sliding block 14.

[0022] Rotatably installed with compression roller 9 between two sliding blocks 14, fixedly installed with gear bar 10 on mounting bracket 7, fixedly installed with one-way bearing 11 on both ends of compression roller 9, and the outer side of compression roller 9 is fixedly connected with the inner ring of one-way bearing 11. The outer ring of one-way bearing 11 is fixedly installed with gear 12, and gear 12 is meshingly connected with gear bar 10.

[0023] The upper end face of workbench 1 is provided with a shearing assembly in the middle. The shearing assembly includes a telescopic rod 2, a cutter 3 and a cutting frame 6. The cutting frame 6 is fixedly installed on the upper end face of the workbench 1, the cutter 3 is movably arranged on the inner side of the cutting frame 6, the telescopic rod 2 is fixedly installed on the lower end face of the workbench 1, and the telescopic end of the telescopic rod 2 is fixedly connected with the cutter 3.

[0024] The upper end face of workbench 1 is provided with a winding assembly away from the side of mounting bracket 7. The winding assembly includes a motor 4 and a winding roller 5, and the upper end face of workbench 1 is fixedly installed with a support plate on both sides. The winding roller 5 is rotatably arranged between the two support plates. One of the support plates is fixedly installed with a motor 4, the output shaft of the motor 4 is fixedly connected with one end of the winding roller 5, and the other end of the winding roller 5 is rotatably connected with the other support plate.

[0025] Working principle:

[0026] The plastic bag passes through the mounting bracket 7, the cutting frame 6 and is wound on the winding roller 5, and then the cylinder 8 is started. The output end of the cylinder 8 moves downward to drive the gear 12 to move downward. The gear 12 moves downward due to the cooperation of the gear bar 10 and the gear 12. At this time, the gear 12 rotates clockwise. When the compression roller 9 contacts the plastic bag below the mounting bracket 7, the plastic bag between the mounting bracket 7 and the winding roller 5 can be flattened due to the clockwise rotation of the compression roller 9, so that the plastic bag changes from a relaxed state to a tensioned state.

[0027] At this time, the motor 4 drives the winding roller 5 to rotate. Since the one-way bearing 11 is arranged on the gear 12, when the winding roller 5 winds the plastic bag, the frictional force between the plastic bag and the compression roller 9 cannot drive the compression roller 9 to rotate counterclockwise, thereby ensuring that the plastic bag between the mounting frame 7 and the winding roller 5 is continuously in a tension state, the plastic bag is rewound, the tightness of the rewound plastic bag is ensured, and the rewinding layers of a single winding roller 5 are improved.

[0028] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A slitting and rewinding device for plastic bag production, comprising a worktable (1), characterized in that: The upper end face of the workbench (1) is provided with a mounting rack (7) on both sides, the inside of the mounting rack (7) is slidably provided with a sliding block (14), the two sliding blocks (14) are rotatably provided with a compression roller (9), the mounting rack (7) is fixedly provided with a toothed rod (10), the two ends of the compression roller (9) are fixedly provided with a one-way bearing (11), the outer side of the compression roller (9) is fixedly connected with the inner ring of the one-way bearing (11); the outer ring of the one-way bearing (11) is fixedly provided with a gear (12), the gear (12) is meshedly connected with the toothed rod (10); the upper end face of the workbench (1) is provided with a shearing assembly; the upper end face of the workbench (1) is provided with a winding assembly away from the mounting rack (7).

2. A slitting and rewinding device for plastic bag production according to claim 1, characterized in that: The inside of the mounting rack (7) is fixedly provided with a sliding rail (13), and the sliding block (14) is slidably arranged in the sliding rail (13).

3. The slitting and rewinding device for plastic bag production according to claim 1, characterized in that: The upper end face of the mounting rack (7) is fixedly provided with an air cylinder (8), and the telescopic end of the air cylinder (8) is fixedly connected with the corresponding sliding block (14).

4. The slitting and rewinding device for plastic bag production according to claim 1, characterized in that: The shearing assembly comprises a telescopic rod (2), a cutter (3) and a cutting frame (6); the cutting frame (6) is fixedly installed on the upper end face of the workbench (1), the inner side of the cutting frame (6) is movably provided with the cutter (3), the telescopic rod (2) is fixedly installed on the lower end face of the workbench (1), and the telescopic end of the telescopic rod (2) is fixedly connected with the cutter (3).

5. The slitting and rewinding device for plastic bag production according to claim 1, characterized in that: The winding assembly comprises a motor (4) and a winding roller (5), the upper end face of the workbench (1) is fixedly provided with a support plate on both sides, the winding roller (5) is rotatably arranged between the two support plates, the motor (4) is fixedly installed on one of the support plates, the output shaft of the motor (4) is fixedly connected with one end of the winding roller (5), and the other end of the winding roller (5) is rotatably connected with the other support plate.

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