Cutting machine for plastic bag production
The automated positioning and cutting machine, which uses a hydraulic cylinder to drive the slider and the fixed plate, solves the problems of excessive manual operation and waste material following the cutting process in plastic bag production, and achieves efficient cutting and improved product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
AI Technical Summary
The cutting process in the current plastic bag production process requires a lot of manual operation, which affects efficiency. Also, after cutting, the waste material is easy to move with the cutting mold, making the next cutting operation inconvenient.
The slide block and fixed plate are driven by a hydraulic cylinder, and in conjunction with an electric slide rail and a limit plate, automated positioning and cutting are achieved. The isolation plate blocks waste material and avoids damage to the plastic bag caused by manual separation of the mold.
It improves production efficiency, ensures cutting accuracy and finished product neatness, avoids damage and deformation of plastic bag edges, and simplifies waste disposal process.
Smart Images

Figure CN223972234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic bag processing, and in particular to a cutting machine for plastic bag production. Background Technology
[0002] In the plastic packaging industry, vest-style plastic bags are widely used in various fields such as waste sorting, daily shopping, and food packaging due to their unique structure and practicality. In the production process of vest-style plastic bags, the cutting step is crucial, directly affecting product quality and production efficiency.
[0003] In plastic bag production, cutting machines are used to cut plastic films or rolls into the required size and shape. The existing production process requires many manual steps, which is labor-intensive and time-consuming, affecting production efficiency. When the plastic bag is punched and cut, the waste material from the cutting die tends to move with the cutting die after cutting, affecting the next cutting operation. At this time, people need to manually remove the waste material from the cutting die, making the overall operation inconvenient. Utility Model Content
[0004] In order to overcome the technical problems existing in the prior art, this utility model provides a cutting machine for producing plastic bags that improves work efficiency.
[0005] The technical solution of this utility model is: a cutting machine for producing plastic bags, comprising a base, a stamping machine, a cutting die, an electric slide rail, a support base, a hydraulic cylinder, a mounting base, a guide block, a slider, a fixing plate, a sliding shaft, and a partition plate. The stamping machine is mounted on the right rear side of the base. The cutting die is mounted on the stamping part of the stamping machine. A vertical slide groove is provided on the rear side of the cutting die. An electric slide rail is fixedly connected to the base. A support base is slidably connected to the electric slide rail. The moving part of the electric slide rail is connected to the support base. A hydraulic cylinder is fixedly connected to the top rear side of the support base. A mounting base is provided, located in front of the hydraulic cylinder. A guide block is fixedly connected to the mounting base, and a slider is slidably connected to the guide block. The slider has symmetrical guide grooves on both sides. The telescopic rod of the hydraulic cylinder is fixedly connected to the middle of the slider. Fixed plates are symmetrically rotatably connected to the mounting base, with two fixed plates located on the outside of the slider. Sliding shafts are fixedly connected to the rear of the two fixed plates, and the two sliding shafts slide in cooperation with the guide grooves of the slider. An L-shaped isolation plate is fixedly connected to the lower middle part of the press, and the isolation plate slides in connection with the vertical groove of the cutting die. The lower part of the L-shaped isolation plate is located inside the cutting die.
[0006] Furthermore, it also includes a screw, a limiting plate, and a knob. The screw is rotatably connected to the top front side of the support base. The threads at both ends of the screw are in opposite directions. The limiting plates are symmetrically slidably connected to the left and right sides of the support base. The front part of the limiting plate is threadedly connected to the screw. The right end of the screw is fixedly connected to a knob. The limiting plate is used to position the plastic bag.
[0007] Furthermore, it also includes an anti-slip sleeve, which is fixedly connected to the knob.
[0008] Furthermore, it also includes an anti-slip pad, which is fixedly connected to the middle of the support base.
[0009] Furthermore, it also includes support feet, which are fixedly connected to the bottom of the base.
[0010] Furthermore, it also includes a placement box, which is fixedly connected to the left side of the base.
[0011] The beneficial effects of this utility model are as follows: 1. The hydraulic cylinder drives the slider to move backward on the guide block, and the slider drives the fixing plate to rotate through the mounting seat and the sliding shaft, so that the fixing plate presses and fixes the plastic film, thereby enabling the cutting mold to separate smoothly from the cut plastic bag, avoiding problems such as damage and deformation of the plastic bag edges caused by the pulling force generated by manually separating the mold, and improving production efficiency.
[0012] 2. By rotating the screw, the two limiting plates move towards or away from each other on the support base, thereby adjusting the distance between the two limiting plates and the plastic film, so that the plastic film is positioned from the left and right sides, avoiding folding, skewing or edge damage to the plastic film due to inaccurate positioning, and ensuring the neatness of the finished product. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a schematic diagram of the cooperative structure of the slider, fixing plate, and sliding shaft of this utility model.
[0015] Figure 3 This is a three-dimensional structural diagram of the screw, limiting plate, and knob of this utility model.
[0016] In the attached diagram: 1: base, 2: stamping machine, 201: cutting mold, 3: electric slide rail, 4: support base, 5: hydraulic cylinder, 6: mounting base, 7: guide block, 8: slider, 9: fixing plate, 10: sliding shaft, 11: isolation plate, 12: screw, 13: limit plate, 14: knob, 15: anti-slip sleeve, 16: anti-slip pad, 17: support foot, 18: placement box. Detailed Implementation
[0017] 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.
[0018] Example: A cutting machine for producing plastic bags, such as Figure 1-2 As shown, the system includes a base 1, a stamping machine 2, a cutting die 201, an electric slide rail 3, a support base 4, a hydraulic cylinder 5, a mounting base 6, a guide block 7, a slider 8, a fixing plate 9, a sliding shaft 10, and a partition plate 11. The stamping machine 2 is mounted on the right rear side of the base 1. The cutting die 201 is mounted on the stamping part of the stamping machine 2. A vertical slide groove is provided on the rear side of the cutting die 201. The electric slide rail 3 is fixedly connected to the base 1. The support base 4 is slidably connected to the electric slide rail 3. The moving part of the electric slide rail 3 is connected to the support base 4. The hydraulic cylinder 5 is fixedly connected to the top rear side of the support base 4. The mounting base 6 is fixedly connected to the top rear side of the support base 4. Mounting base 6 is located in front of hydraulic cylinder 5. A guide block 7 is fixedly connected to mounting base 6. A slider 8 is slidably connected to guide block 7. Guide grooves are symmetrically provided on the left and right sides of slider 8. The telescopic rod of hydraulic cylinder 5 is fixedly connected to the middle of slider 8. Fixing plates 9 are symmetrically rotatably connected to mounting base 6. The two fixing plates 9 are located on the outside of slider 8. Sliding shafts 10 are fixedly connected to the rear of the two fixing plates 9. The two sliding shafts 10 are slidably engaged with the guide grooves of slider 8. An L-shaped isolation plate 11 is fixedly connected to the lower middle part of stamping machine 2. The isolation plate 11 is slidably connected to the vertical groove of cutting die 201. The lower part of L-shaped isolation plate 11 is located inside cutting die 201.
[0019] like Figure 1-3 As shown, it also includes a screw 12, a limiting plate 13, and a knob 14. The screw 12 is rotatably connected to the top front side of the support base 4. The threads at both ends of the screw 12 are in opposite directions. The limiting plate 13 is symmetrically slidably connected to the left and right sides of the support base 4. The front part of the limiting plate 13 is threadedly connected to the screw 12. The knob 14 is fixedly connected to the right end of the screw 12. The limiting plate 13 is used to position the plastic bag.
[0020] like Figure 1 As shown, it also includes an anti-slip sleeve 15, which is fixedly connected to the knob 14.
[0021] like Figure 1 As shown, it also includes an anti-slip pad 16, which is fixedly connected to the middle of the support base 4.
[0022] like Figure 1As shown, it also includes a support foot 17, which is fixedly connected to the bottom of the base 1; the support foot 17 is used to support the entire device and ensure that the device is placed stably.
[0023] like Figure 1 As shown, it also includes a placement box 18, which is fixedly connected to the left side of the base 1.
[0024] When using this device, the limiting plates 13 first need to be adjusted according to the size of the plastic film to roughly determine the distance range between the limiting plates 13 so that it can adapt to the basic width of the plastic film. The operator holds the anti-slip sleeve 15 on the knob 14 to facilitate the operator's rotation of the screw 12 and prevent hand slippage. The rotation of the screw 12 will cause the two limiting plates 13 to move in opposite directions on the support base 4, thereby adjusting the distance between the two limiting plates 13 to adapt to the width of the plastic film to be placed, thus positioning the plastic film and avoiding folding, skewing, or edge damage caused by inaccurate positioning, ensuring the plastic film is properly positioned. To ensure product neatness, the operator places the multi-layered plastic film onto the support base 4. The anti-slip pad 16 enhances the stability of the plastic film, ensuring it is laid flat and preventing wrinkles that could affect subsequent cutting accuracy. Then, the hydraulic cylinder 5 is activated, its extension rod shortening to move the slider 8 backward along the guide block 7. This causes the sliding shafts 10 on the two fixed plates 9 to slide through the guide grooves on the slider 8. Simultaneously, the two fixed plates 9 rotate 90° clockwise around the mounting base 6 to a horizontal position, securing the plastic film. The electric slide rail 3 is then activated, driving the... The moving component drives the support base 4 to move to the right, moving the fixed plastic film to the corresponding cutting position below the stamping machine 2. Then, the stamping machine 2 is started, and the stamping part of the stamping machine 2 drives the cutting die 201 to move downward, performing a stamping and cutting operation on the plastic film below. The sharp edge of the cutting die 201 cuts the plastic film into a preliminary plastic bag shape. After the cutting is completed, the stamping machine 2 drives the cutting die 201 to move upward. The lower part of the isolation plate 11 is located inside the cutting die 201. The isolation plate 11 can prevent the waste generated during cutting from rising with the cutting die 201. After the cutting die 201 separates from the plastic bag, the electric sliding mechanism is started again. When track 3 operates, the electric slide rail 3 drives the support seat 4 to move to the left and reset. At this time, the operator collects and processes the cut waste material. Then, the hydraulic cylinder 5 is started again. The extension rod of the hydraulic cylinder 5 pushes the slider 8 forward. The slider 8 drives the two fixed plates 9 to rotate 90° counterclockwise through the mounting seat 6 and the sliding shaft 10, so that the cutting mold 201 can be smoothly separated from the cut plastic bag. This avoids problems such as damage and deformation of the plastic bag edges caused by the pulling force generated by manually separating the mold, thus improving production efficiency. The operator can take the cut plastic bag off the support seat 4 and place it in the placement box 18 for easy operation.
[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A cutting machine for plastic bag production, characterized in that: The utility model provides a cutting device for plastic bag, including base (1), punch (2), cutting die (201), electric slide rail (3), support seat (4), hydraulic cylinder (5), mounting seat (6), guide block (7), sliding block (8), fixed plate (9), slide shaft (10) and isolation board (11), punch (2) is installed to the rear side of base (1), and the punch part of punch (2) is installed with cutting die (201), and the vertical slide groove is set up in the side of cutting die (201), and electric slide rail (3) is fixedly connected on base (1), and support seat (4) is slidably connected on electric slide rail (3), and the moving piece of electric slide rail (3) is connected with support seat (4), and the top of support seat (4) is fixedly connected with hydraulic cylinder (5), and the top of support seat (4) is fixedly connected with mounting seat (6), and mounting seat (6) is located in the front side of hydraulic cylinder (5), and mounting seat (6) is fixedly connected with guide block (7), and guide block (7) is slidably connected with sliding block (8), and the guide slide groove is symmetrically arranged on sliding block (8), and the middle part of sliding block (8) is fixedly connected with the telescopic rod of hydraulic cylinder (5), and mounting seat (6) is rotatably connected with fixed plate (9) symmetrically, and two fixed plate (9) are located on the outside of sliding block (8), and the rear part of two fixed plate (9) is fixedly connected with slide shaft (10), and two slide shaft (10) are slidably connected with the guide groove of sliding block (8), and punch (2) is fixedly connected with L-shaped isolation board (11), and isolation board (11) is slidably connected with the vertical slide groove of cutting die (201), and the lower part of L-shaped isolation board (11) is located in cutting die (201).
2. The cutting machine for producing plastic bags according to claim 1, characterized in that: It also includes screw (12), limit plate (13) and knob (14), the top front side of support seat (4) is rotatably connected with screw (12), the thread of both ends on screw (12) is opposite direction, support seat (4) is slidably connected with limit plate (13) symmetrically, the front part of limit plate (13) is threadedly connected with screw (12), one end of screw (12) is fixedly connected with knob (14), and the limit plate (13) is used for positioning plastic bag.
3. The cutting machine for producing plastic bags according to claim 2, wherein: It also includes anti-skid sleeve (15), and the anti-skid sleeve (15) is fixedly connected with the knob (14).
4. The cutting machine for producing plastic bags according to claim 3, wherein: It also includes anti-skid pad (16), and the anti-skid pad (16) is fixedly connected with the middle part of the support seat (4).
5. The cutting machine for producing plastic bags according to claim 4, wherein: It also includes support leg (17), and the support leg (17) is fixedly connected with the bottom of the base (1).
6. The cutting machine for producing plastic bags according to claim 5, wherein: It also includes placing box (18), and the placing box (18) is fixedly connected with the left side of the base (1).