Hot cutting device for plastic bag processing

Abstract

The utility model relates to a hot cutting device for plastic bag processing, and aims to solve the problems that when a full-biodegradable plastic bag making hot cutting device is used for hot cutting of plastic bags, the plastic bags are prone to wrinkling in the placing process due to the fact that the plastic bags are soft, in order to not affect the cutting quality of the plastic bags, operators need to spread and level the plastic bags, and the cutting efficiency is high. The plastic bag hot cutting device comprises a base, a supporting plate is fixedly arranged on the surface of the base, a supporting assembly is arranged on the opposite face of the supporting plate, a driving mechanism is arranged on one side of the supporting plate, a plastic bag roll is arranged between the supporting plate and the supporting assembly, and a hot cutting assembly is arranged above the plastic bag roll. According to the plastic bag winding device, the two ends of a plastic bag roll are effectively limited by arranging a set of winding rollers, meanwhile, a plastic bag between the winding rollers is loosened and drooped, the middle plastic bag is effectively maintained to be horizontally attached to the surface of the base, and the plastic bag at the hot cutting position is prevented from being wrinkled.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag processing, in particular to a hot cutting device for plastic bag processing. Background Art

[0002] A plastic bag is a bag made of plastic as the main raw material. It is an indispensable item in people's daily life and is often used to hold other items. It is widely used because of its advantages of being cheap, extremely light, large in capacity, and easy to store. Plastic bags need to be heat-cut during the production and processing process. The plastic bags are heat-cut by a heated rack-type cutter. The plastic bags will not break after heat-cutting, and are convenient to tear when used.

[0003] Patent No. CN215512502U discloses a fully biodegradable plastic bag making and hot cutting device, including a bottom plate, a transmission mechanism and a hot cutting mechanism, the upper surface of the bottom plate is provided with a transmission mechanism, the transmission mechanism includes a screw, a screw nut, a connecting rod, a slide bar and a limit block, the upper surface of the bottom plate is fixedly connected with a slide bar, the surface of the slide bar is slidably connected with the limit block, the upper surface of the bottom plate is installed with a screw, the surface of the screw is installed with a screw nut, the screw nut and the limit block are connected by a connecting rod, one side of the bottom plate is fixedly connected with a support plate a, one end of the support plate a is fixedly connected with a top plate, the upper surface of the top plate is provided with a servo motor and the power output end of the servo motor is connected to one end of the screw. The utility model has high hot cutting efficiency, durable transmission mechanism, reduces the cost of device maintenance and replacement, and reduces production and use costs.

[0004] The above-mentioned fully biodegradable plastic bag making and hot cutting device still has the following shortcomings:

[0005] When the above-mentioned fully biodegradable plastic bag making and hot cutting device is hot cutting plastic bags, since the plastic bags are relatively soft, wrinkles are easily formed during the placement process. In order not to affect the cutting quality, the operator needs to spread it out and flatten it, which is not only troublesome but also reduces the processing efficiency of the plastic bags. In view of this, we propose a hot cutting device for plastic bag processing. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a hot cutting device for plastic bag processing to solve the technical problem that when the above-mentioned fully biodegradable plastic bag making and hot cutting device is hot cutting the plastic bags, due to the relatively soft texture of the plastic bags, wrinkles are easily formed during the placement process. In order not to affect the cutting quality, the operators need to spread and flatten them, which not only troubles the process but also reduces the processing efficiency of the plastic bags.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: design a hot cutting device for plastic bag processing, including a base, a support plate is fixedly provided on the surface of the base, a support assembly is provided on the opposite side of the support plate, a driving mechanism is provided on one side of the support plate, a plastic bag roll is provided between the support plate and the support assembly, and a hot cutting assembly is provided above the plastic bag roll;

[0008] The driving mechanism includes a bracket, which is fixed to the surface of the support plate. A motor is engaged inside the bracket. A driving wheel is connected to the movable end of the motor. A driven wheel is provided on the opposite side of the driving wheel. A transmission belt is provided on the outside of the driving wheel and the driven wheel. A limiting rod is inserted into the surface of the driven wheel. Winding rollers are connected to the ends of the driving wheel and the driven wheel.

[0009] Preferably, the motor forms a transmission structure through a driving wheel, a transmission belt and a driven wheel, one end of the limit rod is movably inserted into the driven wheel, and the other end of the limit rod is fixed to the surface of the support plate.

[0010] Preferably, the support assembly includes a fixed plate, which is fixed to the surface of the base, a movable plate is attached to the end of the fixed plate, a limit block is provided at the bottom of the movable plate, a limit groove is opened on the surface of the base, and the limit block and the limit groove are connected by bolts.

[0011] Preferably, the movable plate forms a locking structure through a limiting block and a limiting groove, and the movable plate and the limiting block are integrally formed.

[0012] Preferably, the hot cutting assembly comprises a support frame, a limit frame is fixedly connected to the top of the support frame, a hydraulic cylinder is clamped inside the limit frame, a movable end of the hydraulic cylinder is connected to a knife holder, and a toothed cutter is embedded inside the knife holder.

[0013] Preferably, the limit frame forms a lifting structure with the tool holder and the toothed cutter through a hydraulic cylinder, and the teeth of the toothed cutter are distributed at intervals.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model effectively limits the two ends of the plastic bag roll by arranging a group of winding rollers, and at the same time makes the plastic bag between the group of winding rollers loose and hanging, effectively maintains the middle plastic bag horizontally in contact with the base surface, avoids wrinkles of the plastic bag at the hot-cut part, and effectively drives the driving wheel to rotate through the motor, so that the transmission belt and the driven wheel rotate, and then a group of winding rollers rotate in the same direction. At this time, the winding roller at one end is setting out, and the winding roller at the other end is collecting, which is convenient for rolling up the hot-cut plastic bag.

[0016] 2. In the utility model, when it is necessary to install the uncut plastic bag roll or dismantle the cut plastic bag roll, the limit block and the limit groove are effectively separated by removing the bolts, and the movable plate is separated from the winding roller. At this time, one end of the plastic bag roll is not constrained, and the plastic bag roll can be directly moved out, which is convenient for the disassembly and assembly of the plastic bag roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0019] Figure 3 This is a schematic diagram of the structure of the support assembly of the utility model in a disassembled state;

[0020] In the figure: 1. base; 2. support plate; 3. support assembly; 4. drive mechanism; 5. plastic bag roll; 6. hot cutting assembly;

[0021] 301, fixed plate; 302, movable plate; 303, limit block; 304, limit groove; 305, bolt;

[0022] 401, bracket; 402, motor; 403, driving wheel; 404, driven wheel; 405, transmission belt; 406, limit rod; 407, winding roller;

[0023] 601, supporting frame; 602, limiting frame; 603, hydraulic cylinder; 604, knife holder; 605, toothed cutter. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] A hot cutting device for plastic bag processing, see Figures 1 to 3 , comprising a base 1, a support plate 2 is fixedly arranged on the surface of the base 1, a support assembly 3 is arranged on the opposite side of the support plate 2, a driving mechanism 4 is arranged on one side of the support plate 2, a plastic bag roll 5 is arranged between the support plate 2 and the support assembly 3, and a hot cutting assembly 6 is arranged above the plastic bag roll 5;

[0026] The driving mechanism 4 includes a bracket 401, which is fixed to the surface of the support plate 2. A motor 402 is engaged inside the bracket 401. A driving wheel 403 is connected to the movable end of the motor 402. A driven wheel 404 is provided on the opposite side of the driving wheel 403. A transmission belt 405 is provided on the outside of the driving wheel 403 and the driven wheel 404. A limiting rod 406 is inserted into the surface of the driven wheel 404. The motor 402 forms a transmission structure through the driving wheel 403, the transmission belt 405 and the driven wheel 404. One end of the limiting rod 406 is movably inserted into the inside of the driven wheel 404, and the other end of the limiting rod 406 is fixed to the surface of the support plate 2. The ends of the driving wheel 403 and the driven wheel 404 are both connected to a winding roller 407. The utility model effectively limits the two ends of the plastic bag roll 5 by setting a group of winding rollers 407, and at the same time allows the plastic bag between the group of winding rollers 407 to relax and hang down, effectively maintaining the middle plastic bag horizontally in contact with the surface of the base 1, avoiding wrinkles in the plastic bag at the hot-cut part, and effectively driving the driving wheel 403 to rotate through the motor 402, so that the transmission belt 405 and the driven wheel 404 rotate, and then the group of winding rollers 407 rotate in the same direction. At this time, the winding roller 407 at one end is setting out, and the winding roller 407 at the other end is collecting, which is convenient for winding up the plastic bag after hot cutting.

[0027] It is worth noting that the support assembly 3 includes a fixed plate 301, the fixed plate 301 is fixed to the surface of the base 1, a movable plate 302 is attached to the end of the fixed plate 301, and a limit block 303 is provided at the bottom of the movable plate 302, wherein the movable plate 302 forms a snap-fit ​​structure with the limit block 303 and the limit groove 304 through the limit block 303, the movable plate 302 and the limit block 303 are integrally formed, and the limit groove 304 is provided on the surface of the base 1, and the limit block 303 and the limit groove 304 are connected by bolts 305. In the utility model, when it is necessary to install the uncut plastic bag roll 5 or disassemble the cut plastic bag roll 5, the limit block 303 and the limit groove 304 are effectively separated by disassembling the bolts 305, and the movable plate 302 is separated from the winding roller 407. At this time, one end of the plastic bag roll 5 is not constrained, and the plastic bag roll 5 can be directly moved out, which is convenient for the disassembly and assembly of the plastic bag roll 5.

[0028] It is worth noting that the hot cutting assembly 6 includes a support frame 601, a limit frame 602 is fixedly connected to the top of the support frame 601, a hydraulic cylinder 603 is clamped inside the limit frame 602, a knife holder 604 is connected to the movable end of the hydraulic cylinder 603, and a toothed cutter 605 is embedded inside the knife holder 604, wherein the limit frame 602 forms a lifting structure with the knife holder 604 and the toothed cutter 605 through the hydraulic cylinder 603, and the saw teeth of the toothed cutter 605 are distributed in intervals. In the utility model, the hydraulic cylinder 603 effectively drives the knife holder 604 and the toothed cutter 605 to move up and down, thereby realizing repeated hot cutting of the plastic bag below the toothed cutter 605.

[0029] Working principle: Install the unheat-cut plastic bag roll 5 on the winding roller 407 near the motor 402, pull the plastic bag so that its open end is fixed on the other winding roller 407, at this time, a group of winding rollers 407 limit the two ends of the plastic bag roll 5, and at the same time make the plastic bag between the group of winding rollers 407 loose and hang down, keep the middle plastic bag horizontally attached to the surface of the base 1, avoid wrinkles in the heat-cut part of the plastic bag, and then drive the knife holder 604 and the toothed cutter 605 to move downward through the hydraulic cylinder 603, so as to realize the heat treatment of the plastic bag below the toothed cutter 605. Cutting, the motor 402 drives the driving wheel 403 to rotate, so that the transmission belt 405 and the driven wheel 404 rotate, and then a group of winding rollers 407 rotate in the same direction. At this time, the winding roller 407 at one end is setting out, and the winding roller 407 at the other end is collecting. The hot cutting can be continued. When the hot-cut plastic bag roll 5 is disassembled, the limit block 303 and the limit groove 304 are separated by removing the bolt 305, and the movable plate 302 is separated from the winding roller 407. At this time, one end of the plastic bag roll 5 is not constrained, and the plastic bag roll 5 can be directly moved out.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A hot cutting device for plastic bag processing, comprising a base (1), characterized in that: A support plate (2) is fixedly provided on the surface of the base (1), a support assembly (3) is provided on the opposite side of the support plate (2), a driving mechanism (4) is provided on one side of the support plate (2), a plastic bag roll (5) is provided between the support plate (2) and the support assembly (3), and a hot cutting assembly (6) is provided above the plastic bag roll (5); The driving mechanism (4) comprises a bracket (401), the bracket (401) is fixed to the surface of the support plate (2), a motor (402) is engaged inside the bracket (401), a driving wheel (403) is connected to the movable end of the motor (402), a driven wheel (404) is provided on the opposite side of the driving wheel (403), a transmission belt (405) is sleeved on the outside of the driving wheel (403) and the driven wheel (404), a limiting rod (406) is inserted into the surface of the driven wheel (404), and winding rollers (407) are connected to the ends of the driving wheel (403) and the driven wheel (404).

2. The hot cutting device for plastic bag processing according to claim 1, characterized in that: The motor (402) forms a transmission structure through a driving wheel (403), a transmission belt (405) and a driven wheel (404); one end of the limiting rod (406) is movably inserted into the driven wheel (404), and the other end of the limiting rod (406) is fixed to the surface of the support plate (2).

3. The hot cutting device for plastic bag processing according to claim 1, characterized in that: The support assembly (3) comprises a fixed plate (301), the fixed plate (301) is fixed to the surface of the base (1), a movable plate (302) is attached to the end of the fixed plate (301), a limit block (303) is provided at the bottom of the movable plate (302), a limit groove (304) is provided on the surface of the base (1), and the limit block (303) and the limit groove (304) are connected by bolts (305).

4. The hot cutting device for plastic bag processing according to claim 3, characterized in that: The movable plate (302) forms a snap-fit ​​structure through a limiting block (303) and a limiting groove (304), and the movable plate (302) and the limiting block (303) are integrally formed.

5. The hot cutting device for plastic bag processing according to claim 1, characterized in that: The hot cutting assembly (6) comprises a support frame (601), the top of the support frame (601) is fixedly connected to a limiting frame (602), a hydraulic cylinder (603) is clamped inside the limiting frame (602), a movable end of the hydraulic cylinder (603) is connected to a knife holder (604), and a toothed cutter (605) is embedded inside the knife holder (604).

6. The hot cutting device for plastic bag processing according to claim 5, characterized in that: The limiting frame (602) forms a lifting structure with the tool holder (604) and the toothed cutter (605) through a hydraulic cylinder (603), and the saw teeth of the toothed cutter (605) are distributed at intervals.

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