Vacuum bag slitting apparatus
By designing a vacuum bag slitting device that incorporates hydraulic cylinders and motor drives, the problem of unstable clamping of vacuum bags during the slitting process was solved, achieving efficient clamping and automatic collection of bags of different specifications, and improving the applicability and safety of the slitting device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHONGKAI PACKAGING CO LTD
- Filing Date
- 2025-02-22
- Publication Date
- 2026-05-29
AI Technical Summary
Existing vacuum bag slitting equipment lacks an effective fixing and tensioning mechanism, which may cause wrinkles or loosening of vacuum bags during processing. It is also difficult to adapt to vacuum bag materials of different widths, and uneven tension may cause the material to tear or deform.
A vacuum bag slitting device was designed, comprising a worktable, a C-shaped slitting bracket, slitting cutters, a slitting translation structure, a flattening structure, a clamping structure, and a collection structure. The device achieves precise clamping and flattening of the vacuum bags through a lead screw system driven by a hydraulic cylinder and a motor, and automatically collects the bag material after slitting.
It enables efficient clamping of vacuum bags of different widths and lengths, ensuring a simple and convenient cutting process, improving operational safety, and avoiding material damage and operational complexity.
Smart Images
Figure CN224297630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum bags, specifically a vacuum bag cutting device. Background Technology
[0002] Vacuum bags, also known as depressurized packaging, are a packaging method that involves placing a product in an airtight container, removing the air from the container, and creating a predetermined vacuum level inside the sealed container. The principle is that by removing the air from the bag, a high-pressure state is created inside, resulting in a low-oxygen environment that inhibits the growth and reproduction of microorganisms. This also prevents food oxidation, thus achieving the purpose of preservation and preventing spoilage. Vacuum bag slitting is the process of cutting larger vacuum bag materials to specific dimensions. When the size of the vacuum bag is well-matched to the product being packaged, the packaging process is smoother.
[0003] The lack of an effective fixing and tightening mechanism in existing vacuum bags can lead to wrinkles or loosening during processing. Furthermore, the size and thickness of vacuum bags may vary, making it difficult for the clamping mechanism of the device to adapt to different materials. If the clamping is not done properly, vacuum bags of different sizes may be subjected to uneven tension during cutting, which may cause the material to tear or deform. To address this, we propose a vacuum bag cutting device. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a vacuum bag slitting device that solves the aforementioned problems.
[0006] (II) Technical Solution
[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a vacuum bag slitting device, including a worktable, a C-shaped slitting bracket, and a slitting cutter. The C-shaped slitting bracket is slidably connected to the side of the worktable away from the support legs. The slitting cutter is installed on the side of the C-shaped slitting bracket opposite to the plane of the worktable. A slitting translation structure is provided on the worktable corresponding to the C-shaped slitting bracket. A flattening structure is provided on the worktable corresponding to the slitting translation structure. A clamping structure is provided on the flattening structure. A collecting structure is provided on the worktable corresponding to the flattening structure.
[0008] Preferably, the slitting and translation structure includes a fixed base, a double-cylinder hydraulic cylinder, a slide rail, and a slide groove. Slide grooves are provided at both ends of the symmetrical sides of the C-shaped slitting bracket. Two parallel and corresponding slide rails are fixedly connected to the side of the worktable away from the support legs. The slide grooves of the C-shaped slitting bracket correspond to and are slidably connected to the slide rails. Four fixed bases are fixedly connected to the side of the worktable away from the support legs. The fixed bases are evenly distributed on both sides outside the two parallel slide rails. The piston rods of the double-cylinder hydraulic cylinder are fixedly connected between the two fixed bases on one side of each slide rail. The main body of the double-cylinder hydraulic cylinder is fixedly connected to the side of the C-shaped slitting bracket closest to it.
[0009] Preferably, the flattening structure includes a support plate, a motor, and a lead screw. The support plates are fixedly connected between the two symmetrical legs of the worktable. The support plates are perpendicular to the slide rail. The side of one support plate facing away from the other support plate is fixedly connected to the bodies of two motors. The motor spindles pass through the support plates between the two support plates. The motor spindles are coaxially fixedly connected to one end of the lead screw between the support plates via couplings. The other end of the lead screw is fixedly mounted on the other support plate via bearing seats.
[0010] Preferably, the flattening structure further includes a slider, a threaded hole, a first sliding rod, and a second sliding groove. The worktable has two second sliding grooves through it on one side corresponding to the lead screw. A threaded hole is through it in the center of one side of the slider. The threaded holes of the two sliders are respectively threaded to the lead screw. The first sliding rod is fixedly connected to the side of the slider corresponding to the second sliding groove. The first sliding rod is slidably connected to the second sliding groove between the two sliding grooves.
[0011] Preferably, the clamping structure includes a clamping seat, a clamping assembly, a first sliding groove, a second double-rod hydraulic cylinder, and a second sliding rod. The first sliding groove is opened through one side of the clamping seat. The side of the clamping seat opposite to the first sliding groove is fixedly connected to the end of the first sliding rod opposite to the slider. The main body of the second double-rod hydraulic cylinder is fixedly connected inside the clamping seat. The two ends of the piston rod of the second double-rod hydraulic cylinder are fixedly connected to the second sliding rod. The second sliding rod is slidably connected to the first sliding groove between the two sliding grooves. The clamping assembly is fixedly connected to one end of the second sliding rod outside the clamping seat. The side of the worktable with the C-shaped cutting bracket near the motor is fixedly connected to the side of another clamping seat opposite to the first sliding groove.
[0012] Preferably, the collection structure includes a collection box and a collection groove. The workbench has a collection groove on one side with the C-shaped cutting bracket, which is located between the two sliding grooves. The collection box is snapped into the collection groove, and the opening of the collection box corresponds to the clamping seat.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides a vacuum bag slitting device, which has the following beneficial effects:
[0015] 1. This vacuum bag slitting equipment adjusts the distance between the clamping components on the clamping seat according to the width corresponding to the vacuum bag slitting line. The flattening structure can quickly flatten the vacuum bag. One end of the vacuum bag to be slitting is passed through the clamping components on the fixed clamping seat until it is transported to the clamping components on the movable clamping seat. The clamping components of the movable clamping seat clamp the vacuum plastic bag. It is convenient to clamp vacuum bags of different widths and lengths, has high applicability, and ensures that the clamping process is simple and convenient.
[0016] 2. This vacuum bag cutting equipment has a collection structure at the bottom of the worktable. When the clamping component is released, the cut vacuum bags will automatically fall into the collection box. The cut vacuum bags can be taken out by pulling out the collection box from one end of the collection slot. The operator does not need to operate near the cutting component to take out the vacuum bags, which greatly improves safety. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is an exploded view of the structure of this utility model;
[0019] Figure 3 This is a schematic cross-sectional view of the flattened structure of this utility model;
[0020] Figure 4 for Figure 3 A magnified view of part A in the diagram.
[0021] In the diagram: 1. Workbench; 2. C-type slitting bracket; 3. Slitting cutter; 4. Support plate; 5. Motor; 6. Fixed base; 7. Double-cylinder hydraulic cylinder one; 8. Clamping seat; 9. Clamping assembly; 10. Slide 1; 11. Slide rail; 12. Collection box; 13. Lead screw; 14. Slider; 15. Threaded hole; 16. Slide rod one; 17. Slide 2; 18. Collection trough; 19. Slide 3; 20. Double-cylinder hydraulic cylinder two; 21. Slide rod two. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4A vacuum bag slitting device includes a worktable 1, a C-shaped slitting bracket 2, and a slitting cutter 3. The C-shaped slitting bracket 2 is slidably connected to the side of the worktable 1 away from the support legs. The slitting cutter 3 is installed on the side of the C-shaped slitting bracket 2 opposite to the plane of the worktable 1. A slitting translation structure is provided on the worktable 1 between the corresponding C-shaped slitting brackets 2. A flattening structure is provided on the worktable 1 between the corresponding slitting translation structures. A clamping structure is provided on the flattening structure. A collecting structure is provided on the worktable 1 between the corresponding flattening structures.
[0024] Furthermore, the slitting and translation structure includes a fixed base 6, a double-cylinder hydraulic cylinder 7, a slide rail 11, and a slide groove 19. Slide grooves 19 are provided at both ends of the symmetrical sides of the C-shaped slitting bracket 2. Two parallel corresponding slide rails 11 are fixedly connected to the side of the worktable 1 facing away from the support legs. The slide grooves 19 of the C-shaped slitting bracket 2 correspond to and are slidably connected to the slide rails 11. Four fixed bases 6 are fixedly connected to the side of the worktable 1 facing away from the support legs. The fixed bases 6 are evenly distributed on both sides outside the two parallel slide rails 11. The piston rods of the double-cylinder hydraulic cylinder 7 are fixedly connected between the two fixed bases 6 on one side of a slide rail 11. The main body of the double-cylinder hydraulic cylinder 7 is fixedly connected to the side of the C-shaped slitting bracket 2 closest to it. The fixed base 6 is used to install the double-cylinder hydraulic cylinder 7, which provides the force for the translation of the C-shaped slitting bracket 2. The slide rails 11 and slide grooves 19 are used to connect the C-shaped slitting bracket 2 and the worktable 1.
[0025] Furthermore, the flattening structure includes a support plate 4, a motor 5, and a lead screw 13. The support plate 4 is fixedly connected between the two symmetrical legs of the worktable 1. The support plate 4 is perpendicular to the slide rail 11. The side of one support plate 4 facing away from the other support plate 4 is fixedly connected to the main body of two motors 5. The main shaft of each motor 5 passes through the support plate 4 between the two support plates 4. The main shaft of each motor 5 is coaxially fixedly connected to one end of the lead screw 13 between the support plates 4 through a coupling. The other end of the lead screw 13 is fixedly mounted on the other support plate 4 through a bearing seat. The support plate 4 is used to install the motor 5 and the lead screw 13. The motor 5 is used to provide force for the flattening structure to flatten the vacuum bag.
[0026] Furthermore, the flattening structure also includes a slider 14, a threaded hole 15, a first sliding rod 16, and a second sliding groove 17. The worktable 1 has two second sliding grooves 17 that pass through one side corresponding to the lead screw 13. The slider 14 has a threaded hole 15 that passes through the center of one side. The threaded holes 15 of the two sliders 14 are threadedly connected to the lead screw 13. The first sliding rod 16 is fixedly connected to the side of the slider 14 corresponding to the second sliding groove 17. The first sliding rod 16 slides between the second sliding grooves 17. The lead screw 13 and the threaded hole 15 are used to connect the slider 14 and the lead screw 13. The first sliding rod 16 and the second sliding groove 17 are used to limit the slider 14 from rotating with the lead screw 13 and to slide on the lead screw 13.
[0027] Furthermore, the clamping structure includes a clamping seat 8, a clamping assembly 9, a sliding groove 10, a double-rod hydraulic cylinder 20, and a sliding rod 21. The clamping seat 8 has a sliding groove 10 extending through one side. The side of the clamping seat 8 facing away from the sliding groove 10 is fixedly connected to the end of the sliding rod 16 facing away from the slider 14. The main body of the double-rod hydraulic cylinder 20 is fixedly connected inside the clamping seat 8. Both ends of the piston rod of the double-rod hydraulic cylinder 20 are fixedly connected to the sliding rod 21. The sliding rod 21 slides between the sliding grooves 10 and is slidably connected to the sliding grooves 10. The sliding rod 21 clamps... One end of the seat 8 is fixedly connected to the clamping assembly 9. The side of the worktable 1 with the C-shaped cutting bracket 2 near the motor 5 is fixedly connected to another clamping seat 8 on the side opposite to the slide groove 10. The two clamping seats 8 are parallel and corresponding. The clamping seat 8 is used to install the double-rod hydraulic cylinder 20. The clamping assembly 9 is used to clamp the vacuum bag. The slide groove 10 is used for the slide rod 21 to slide between the slide groove 10. The slide rod 21 is used to connect the clamping assembly 9 and the double-rod hydraulic cylinder 20. The double-rod hydraulic cylinder 20 is used to provide the force for adjusting the spacing of the clamping assembly 9.
[0028] Furthermore, the collection structure includes a collection box 12 and a collection groove 18. The workbench 1 has a collection groove 18 between two sliding grooves 17 on one side of the C-shaped cutting bracket 2. The collection box 12 is snapped into the collection groove 18. The open side of the collection box 12 corresponds to the clamping seat 8. The collection groove 18 is used to install the collection box 12. The collection box 12 can slide between the collection grooves 18. The collection box 12 is used to collect the cut vacuum bags.
[0029] Working principle: Align the slitting line of the vacuum bag with the blade of the slitting cutter 3. Adjust the distance between the clamping components 9 on the clamping seat 8 according to the width corresponding to the slitting line. Start the piston rod extension and retraction movement of the double-rod hydraulic cylinder 20 to adjust the spacing of the clamping components 9. Pass one end of the vacuum bag to be cut through the clamping component 9 on the fixed clamping seat 8 until it is transported to the clamping component 9 on the movable clamping seat 8. The clamping component 9 of the movable clamping seat 8 clamps the vacuum plastic bag. Start the motor 5 to drive the lead screw 13 to rotate. The lead screw 13 drives the slider 14 and the slide rod 16 to slide between the slide groove 17. Thus, the slide rods 16 on both sides drive the movable clamping seat 8 to move away from the fixed clamping seat 8 until the vacuum bag is cut. The other end is transported to the clamping component 9 of the fixed clamping seat 8, clamping the clamping component 9 of the fixed clamping seat 8 onto the vacuum plastic bag. The double-cylinder hydraulic cylinder 7 is activated to move the main body of the double-cylinder hydraulic cylinder 7 horizontally. The double-cylinder hydraulic cylinder 7 drives the C-type slitting bracket 2 to move to the position of the vacuum bag slitting line. Then, the slitting cutter 3 is controlled to descend and fit with the vacuum bag slitting line. The double-cylinder hydraulic cylinder 7 is activated to drive the C-type slitting bracket 2 and the slitting cutter 3 to move horizontally to slit the vacuum bag. After slitting, the clamping component 9 on the clamping seat 8 is released, and the vacuum bag falls into the collection box 12. The collection box 12 is pulled out from one end of the collection groove 18, and the slit vacuum bag in the collection box 12 can be taken out. Finally, the mechanically moving parts are returned to their original positions.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vacuum bag slitting device, comprising a worktable (1), a C-shaped slitting bracket (2), and a slitting blade (3), wherein the C-shaped slitting bracket (2) is slidably connected to the side of the worktable (1) away from the support legs, and the slitting blade (3) is mounted on the side of the C-shaped slitting bracket (2) opposite to the plane of the worktable (1), characterized in that: The workbench (1) is provided with a cutting and translation structure between the C-shaped cutting bracket (2), the workbench (1) is provided with a flattening structure between the cutting and translation structures, the flattening structure is provided with a clamping structure, and the workbench (1) is provided with a collection structure between the flattening structures.
2. The vacuum bag slitting device according to claim 1, characterized in that: The slitting and translation structure includes a fixed seat (6), a double-cylinder hydraulic cylinder (7), a slide rail (11), and a slide groove (19). The C-shaped slitting bracket (2) has slide grooves (19) at both ends on both sides. The side of the worktable (1) away from the support leg is fixedly connected to two parallel corresponding slide rails (11). The slide grooves (19) of the C-shaped slitting bracket (2) correspond to and are slidably connected to the slide rails (11). The bases of the four fixed seats (6) are fixedly connected to the side of the worktable (1) away from the support leg. The fixed seats (6) are evenly distributed on both sides outside the two parallel slide rails (11). The two fixed seats (6) on one side of one slide rail (11) are fixedly connected to the two ends of the piston rod of the double-cylinder hydraulic cylinder (7). The body of the double-cylinder hydraulic cylinder (7) is fixedly connected to the side of the C-shaped slitting bracket (2) that is close to it.
3. The vacuum bag slitting device according to claim 2, characterized in that: The flattening structure includes a support plate (4), a motor (5), and a lead screw (13). The support plate (4) is fixedly connected between the two symmetrical legs of the worktable (1). The support plate (4) is perpendicular to the slide rail (11). The side of one support plate (4) facing away from the other support plate (4) is fixedly connected to the main body of two motors (5). The main shaft of the motor (5) passes through the support plate (4) between the two support plates (4). The main shaft of the motor (5) is coaxially fixedly connected to one end of the lead screw (13) between the support plates (4) through a coupling. The other end of the lead screw (13) is fixedly installed on the other support plate (4) through a bearing seat.
4. The vacuum bag slitting device according to claim 3, characterized in that: The flattening structure also includes a slider (14), a threaded hole (15), a first sliding rod (16), and a second sliding groove (17). The worktable (1) has two second sliding grooves (17) through one side corresponding to the lead screw (13). The slider (14) has a threaded hole (15) through one center of one side. The threaded holes (15) of the two sliders (14) are threadedly connected to the lead screw (13). The first sliding rod (16) is fixedly connected to the side of the slider (14) corresponding to the second sliding groove (17). The first sliding rod (16) is slidably connected to the second sliding groove (17) between the two sliding grooves (17).
5. The vacuum bag slitting device according to claim 4, characterized in that: The clamping structure includes a clamping seat (8), a clamping assembly (9), a first slide groove (10), a second double-rod hydraulic cylinder (20), and a second slide rod (21). The clamping seat (8) has a slide groove (10) extending through one side. The side of the clamping seat (8) facing away from the slide groove (10) is fixedly connected to the end of the first slide rod (16) facing away from the slider (14). The main body of the second double-rod hydraulic cylinder (20) is fixedly connected inside the clamping seat (8). The second double-rod hydraulic cylinder (20) is movable. Both ends of the plug rod are fixedly connected to slide rod two (21). Slide rod two (21) is slidably connected to slide groove one (10) between slide groove one (10). Slide rod two (21) is fixedly connected to a clamping assembly (9) at one end outside the clamping seat (8). The worktable (1) has another clamping seat (8) fixedly connected to the side of the C-shaped cutting bracket (2) near the motor (5) and away from the slide groove one (10). The two clamping seats (8) are parallel and corresponding.
6. The vacuum bag slitting device according to claim 5, characterized in that: The collection structure includes a collection box (12) and a collection groove (18). The workbench (1) has a collection groove (18) between two sliding grooves (17) on one side of the C-shaped cutting bracket (2). The collection box (12) is snapped into the collection groove (18). The opening side of the collection box (12) corresponds to the clamping seat (8).