Bag flattening and cutting machine convenient to fix
By introducing a motor-driven sprocket system and spring roller structure into the flat bag cutter, the problem of loose plastic bag conveying is solved, the cutting and winding effect is improved, and the stability and compactness of the plastic bags are ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-24
AI Technical Summary
Existing flat bag cutting machines cannot effectively convey and tighten plastic bags during use, resulting in poor performance.
A flat bag cutting machine was designed, comprising components such as a motor, drive shaft, sprocket, chain, driven shaft, limit ring, pressure roller, and spring. The motor drives the sprocket to move the driven shaft and chain to loosen and roll up the plastic bags, while the spring and roller are used to tighten and guide the plastic bags, ensuring the compactness and stability of the plastic bags during the cutting process.
It achieves synchronized operation and compactness of plastic bags, avoids loose wrinkles, and improves slitting effect and winding quality.
Smart Images

Figure CN224028530U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of plastic bags, and particularly relates to a flat bag cutting machine convenient to fix. BACKGROUND
[0002] Plastic packaging bags are packaging bags for various articles in production and life, and are widely used in daily life and industrial production, but the convenience brings long-term harm. Commonly used plastic packaging bags are made of polyethylene film, which is non-toxic and can be used to contain food. Another kind of film is made of polyvinyl chloride, which is also non-toxic, but the additives added according to the use of the film are often harmful substances to the human body and have certain toxicity. Therefore, this kind of film and the plastic bags made of the film are not suitable for containing food.
[0003] At present, plastic bags are widely used in daily life, such as flat plastic bags in supermarkets, and the flat bag type plastic bags need to be slitting processed during processing, and the general flat bag cutting machine cannot well transport and tension during use, which affects the use effect. UTILITY MODEL CONTENTS
[0004] To solve the problems in the background art, the utility model provides a flat bag cutting machine convenient to fix, which solves the problem that the flat bag cutting machine cannot well transport and tension, thereby affecting the use effect.
[0005] To achieve the above object, the utility model provides the following technical scheme: a flat bag cutting machine convenient to fix, which comprises a placing plate, a first support frame is arranged on the top of the placing plate, an installation platform is arranged on the inner wall of the first support frame, an electric hydraulic push rod is arranged on the top of the first support frame, a connecting plate is connected to the output end of the electric hydraulic push rod, a heat sealing strip plate is arranged on one side of the bottom of the connecting plate, a cutting knife is arranged on the other side of the bottom of the connecting plate, the bottom of the cutting knife is serrated, second support frames are arranged at the two ends of the surface of the placing plate respectively, a third support frame is arranged on one side of the second support frame, a motor is arranged on one side of the third support frame, a driving shaft is connected to the output end of the motor, a second sprocket is arranged on the surface of the driving shaft, a chain is arranged on the surface of the second sprocket, a first sprocket is arranged on one end in the chain, a driven shaft is arranged on one side of the first sprocket, a cushion seat is arranged on the top of the installation platform, limit rings are arranged on the surfaces of the driven shaft and the driving shaft respectively, a connecting rod is movably connected to one side of the first support frame, a connecting column is arranged on one side of the connecting rod, a compression roller is arranged on the surface of the connecting column, and the compression roller is located above the driving shaft.
[0006] Preferably, two ends of the installation platform are respectively provided with L-shaped connecting blocks, one side of the L-shaped connecting block is provided with a guide roller set.
[0007] Preferably, two ends of the surface of the placing plate are respectively provided with springs, the top of the spring is connected with a mounting frame, one side of the mounting frame is movably connected with a roller.
[0008] Preferably, the bottom of the mounting frame is respectively provided with a limiting inner rod, the surface of the limiting inner rod is movably connected with a limiting sleeve, and the bottom of the limiting sleeve is mounted to the surface of the placing plate.
[0009] Preferably, two ends of the second support frame are respectively provided with first bolts, and one end of the first bolt is screwed into the second support frame and the placing plate.
[0010] Preferably, the top of the connecting plate is provided with a connecting barrel, one side of the connecting barrel is provided with a second bolt, and one end of the second bolt is screwed into the connecting barrel and is screwed with a nut.
[0011] Preferably, the bottom of the placing plate is respectively provided with support legs around, and the bottom of the support leg is provided with an anti-skid base.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] In use, the motor, the driving shaft, the second sprocket, the chain and the first sprocket are set to work, the first sprocket drives the driven shaft to move, so that the plastic bag roll is loosened and wound, the synchronous operation is increased, the use effect is increased, the spring drives the mounting frame and the roller to move upward, so that the plastic bag on the surface is tensioned, the compactness is increased, the cutting effect is improved, the loose wrinkles are avoided, the cutting effect is affected, the plastic bag passes through the guide roller set, the plastic bag moves on the surface of the pad, so that the cutting effect is increased, and when winding, the gravity of the compression roller is used to compress the plastic bag, the winding effect is increased, and the loose phenomenon is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0014] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:
[0015] Figure 1 It is the first kind of three-dimensional structure diagram of the utility model;
[0016] Figure 2 It is the second kind of three-dimensional structure diagram of the utility model;
[0017] Figure 3 The third perspective view of the utility model;
[0018] Figure 4 The structure diagram of the cutting knife of the utility model.
[0019] In the figure: 1, placing plate; 2, first support frame; 3, L-shaped connecting block; 4, spring; 5, mounting bracket; 6, roller; 7, connecting cylinder; 8, electric hydraulic push rod; 9, cushion seat; 10, connecting rod; 11, connecting column; 12, compression roller; 13, second support frame; 14, first bolt; 15, limit ring; 16, first sprocket; 17, chain; 18, third support frame; 19, motor; 20, driving shaft; 21, second sprocket; 22, connecting plate; 23, nut; 24, second bolt; 25, limit inner rod; 26, limit sleeve; 27, driven shaft; 28, antiskid base; 29, support leg; 30, mounting platform; 31, cutting knife; 32, heat sealing strip plate. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0021] Please refer to Figures 1-4 The utility model provides the following technical scheme: a flat bag cutting machine convenient to fix, including placing plate 1, the top of placing plate 1 is provided with first support frame 2, the inner wall of first support frame 2 is provided with mounting platform 30, the top of first support frame 2 is provided with electric hydraulic push rod 8, the output of electric hydraulic push rod 8 is connected with connecting plate 22, one side of connecting plate 22 bottom is provided with heat sealing strip plate 32, the other side of connecting plate 22 bottom is provided with cutting knife 31, and the bottom of cutting knife 31 is zigzag, the both ends of placing plate 1 surface are provided with second support frame 13, one side of second support frame 13 is provided with third support frame 18, one side of third support frame 18 is provided with motor 19, the output of motor 19 is connected with driving shaft 20, the surface of driving shaft 20 is provided with second sprocket 21, the surface of second sprocket 21 is provided with chain 17, one end in chain 17 is provided with first sprocket 16, one side of first sprocket 16 is provided with driven shaft 27, the top of mounting platform 30 is provided with cushion seat 9, the surface of driven shaft 27 and driving shaft 20 is provided with limit ring 15, one side of first support frame 2 is movably connected with connecting rod 10, one side of connecting rod 10 is provided with connecting column 11, the surface of connecting column 11 is provided with compression roller 12, and compression roller 12 is located above driving shaft 20.
[0022] In this embodiment: in use, the electric hydraulic push rod 8 is operated, so that the electric hydraulic push rod 8 drives the connecting plate 22 to move downward, and the cutting knife 31 and the heat sealing strip plate 32 move downward, so that the heat sealing strip plate 32 heat seals the plastic bag, and the cutting knife 31 cuts the plastic bag into a dashed line shape, thereby facilitating tearing.
[0023] In this embodiment: the second bolt 24, the connecting barrel 7 and the nut 23 are arranged to connect and fix them, thereby increasing the stability of the connection.
[0024] In this embodiment: the first bolt 14 is arranged to fix the second support frame 13.
[0025] In this embodiment: the limiting inner rod 25 and the limiting sleeve 26 are arranged to limit the mounting frame 5, thereby increasing the stability of movement and avoiding shaking and affecting use.
[0026] The working principle and use process of the utility model: after the utility model is installed, in use, the plastic bag roll to be cut is placed on the surface of the driven shaft 27, then one end is located on the surface of the roller 6, then passes through the guide roller set, and finally is fixed and wound on the surface of the driving shaft 20, then the motor 19 is operated, so that the motor 19 drives the driving shaft 20 to rotate, at the same time, the driving shaft 20 drives the chain 17 and the first sprocket 16 to rotate through the second sprocket 21, so that the first sprocket 16 drives the driven shaft 27 to move, thereby loosening and winding the plastic bag roll, so that synchronous operation is realized, the use effect is increased, the spring 4 is arranged, the spring 4 drives the mounting frame 5 and the roller 6 to move upward, so that the plastic bag passing through the surface is tensioned, the compactness is increased, the cutting effect is improved, the phenomenon of loose wrinkles is avoided, the cutting effect is affected, the plastic bag passes through the guide roller set, so that the plastic bag is guided, the plastic bag moves through the surface of the pad 9, so that the cutting effect is increased, and when winding, the plastic bag is compressed through the gravity of the compression roller 12, so that the effect of winding is increased, the phenomenon of looseness is avoided, all the electrical equipment in the device is powered by an external power supply.
[0027] Finally, it should be noted that: the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A flat bag cutting machine facilitating fixation, comprising a placement plate (1), characterized in that: The top of the placement plate (1) is provided with a first support frame (2), the inner wall of the first support frame (2) is provided with a mounting platform (30), the top of the first support frame (2) is provided with an electric hydraulic push rod (8), the output end of the electric hydraulic push rod (8) is connected with a connecting plate (22), one side of the bottom of the connecting plate (22) is provided with a heat sealing strip plate (32), the other side of the bottom of the connecting plate (22) is provided with a cutting knife (31), and the bottom of the cutting knife (31) is serrated, both ends of the surface of the placement plate (1) are respectively provided with a second support frame (13), one side of the second support frame (13) is provided with a third support frame (18), one side of the third support frame (18) is provided with a motor (19), the output end of the motor (19) is connected with a driving shaft (20), the surface of the driving shaft (20) is provided with a second sprocket (21), the surface of the second sprocket (21) is provided with a chain (17), one end of the inside of the chain (17) is provided with a first sprocket (16), one side of the first sprocket (16) is provided with a driven shaft (27), the top of the mounting platform (30) is provided with a pad (9), the surfaces of the driven shaft (27) and the driving shaft (20) are respectively provided with a limit ring (15), one side of the first support frame (2) is movably connected with a connecting rod (10), one side of the connecting rod (10) is provided with a connecting column (11), the surface of the connecting column (11) is provided with a compression roller (12), and the compression roller (12) is located above the driving shaft (20).
2. A flat bag slitting machine for facilitating securement according to claim 1, characterized in that: Both ends of the mounting platform (30) are respectively provided with L-shaped connecting blocks (3), one side of the L-shaped connecting block (3) is provided with a guide roller set.
3. A flat bag slitting machine for facilitating securement according to claim 1, wherein: Both ends of the surface of the placement plate (1) are respectively provided with springs (4), the top of the spring (4) is connected with a mounting frame (5), one side of the mounting frame (5) is movably connected with a roller (6).
4. A flat bag slitting machine for facilitating securement according to claim 3, wherein: The bottom of the mounting frame (5) is respectively provided with a limit inner rod (25), the surface of the limit inner rod (25) is movably connected with a limit sleeve (26), and the bottom of the limit sleeve (26) is mounted to the surface of the placement plate (1).
5. A flat bag slitting machine for facilitating securement according to claim 1, wherein: Both ends of the second support frame (13) are respectively provided with first bolts (14), and one end of the first bolt (14) penetrates the second support frame (13) and is threadedly connected with the placement plate (1).
6. A flat bag slitting machine for facilitating securement according to claim 1, characterized in that: The top of the connecting plate (22) is provided with a connecting barrel (7), one side of the connecting barrel (7) is provided with a second bolt (24), one end of the second bolt (24) penetrates the connecting barrel (7) and is threadedly connected with a nut (23).
7. A flat bag slitting machine for facilitating securement according to claim 1, wherein: The bottom of the placement plate (1) is provided with support legs (29) around, and the bottom of the support leg (29) is provided with an antiskid base (28).