Bag making machine for vacuum packaging bag processing
By designing a vacuum packaging bag making machine with a detachable multi-segment cutter head and an adjustable crank handle with an insert groove, the problem of inconvenient cutter replacement and adjustment is solved, reducing operating costs and improving ease of operation.
Patent Information
- Application Number
- CN202520614561.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-03
AI Technical Summary
The cutting blades of existing bag-making machines are inconvenient to replace and adjust, resulting in high operating costs and inconvenience.
The design features a detachable multi-segment blade structure, which is fixed to the blade body with screws and equipped with a plug groove and an adjustment handle to facilitate easy blade replacement and gap adjustment.
It reduces the cost of replacing the cutter, facilitates the individual replacement of worn parts, and allows for precise adjustment of the cutter gap by slightly rotating the drive wheel with a crank handle, thus improving operating efficiency.
Smart Images

Figure CN223934292U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bag making machine technology, and more specifically, to a bag making machine for vacuum packaging bag processing. Background Technology
[0002] Vacuum packaging bags are mainly used in the food industry to extend the shelf life of food and improve product quality. The production of vacuum packaging bags requires a bag making machine. The production process is as follows: the printed film is cut, folded, heat-sealed, and slit into small bags.
[0003] The existing bag making machine's slitting mechanism requires cutting plastic bags with a cutter. The cutter is a single unit, and when it is damaged, the entire cutter needs to be replaced, which increases the operating cost of the device. Furthermore, when replacing or adjusting the cutter, the drive device needs to be manually turned to move the cutter a short distance to facilitate adjusting the gap between the cutters. However, there is no special tool for manually turning the drive device, which makes the cutter adjustment inconvenient.
[0004] In view of this, this paper studies and improves upon existing problems, and provides a bag-making machine for vacuum packaging bag processing. The aim of this technology is to solve the problems and improve its practical value. Utility Model Content
[0005] The purpose of this utility model is to provide a bag-making machine for vacuum packaging bag processing, so as to solve the problems and deficiencies mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides a bag-making machine for vacuum packaging bag processing, which is achieved by the following specific technical means:
[0007] A bag-making machine for vacuum packaging bags includes: a frame, a feeding device, a dividing and folding device, a heat-sealing device, a traction device, a guide bracket, an upper knife holder, a lower knife holder, a cutter, a connecting rod, a drive wheel, an insertion groove, an adjusting handle, a blade body, and a cutter head. The feeding device and the dividing and folding device are installed at the feeding end of the frame. The heat-sealing device is installed above the frame. The traction device is installed on the frame near the discharge end. The guide bracket is fixed on both sides of the discharge end of the frame, and the upper knife holder is installed between the guide brackets, with both ends of the upper knife holder sliding against the guide brackets. The machine is equipped with a dynamic connection; the lower blade holder is fixed to the inner side of the frame below the upper blade holder; the cutter is fixed on the upper and lower blade holders, and the cutters on the upper and lower blade holders are arranged opposite to each other; the drive wheel is rotatably arranged on both sides of the discharge end of the frame, and an insertion groove is provided in the middle of the drive wheel; the two ends of the connecting rod are respectively hinged to the lower blade holder and the drive wheel; the adjusting handle is movably inserted into the insertion groove; the cutter consists of a blade body and a blade head; the blade head is fixed to the long side of the blade body by screws, and the blade head is composed of multiple segments, and each segment of the blade head is of equal length.
[0008] As a further optimization of this technical solution, the blade of the vacuum packaging bag making machine of this utility model is a rectangular plate structure, and the long side of the rectangular plate structure is provided with a protrusion for fixing the blade head, and the blade body is provided with a threaded hole for fixing the blade head.
[0009] As a further optimization of this technical solution, the cutter head of the vacuum packaging bag making machine of this utility model has a trapezoidal strip structure with a rectangular notch in cross-section, and the cutter head is provided with countersunk holes for mounting and fixing screws.
[0010] As a further optimization of this technical solution, the insertion groove of the bag making machine for vacuum packaging bag processing of this utility model is an equilateral hexagonal groove.
[0011] As a further optimization of this technical solution, the adjusting handle of the bag making machine for vacuum packaging bag processing of this utility model is a tubular structure in the shape of the English letter "L", and one end of the adjusting handle is provided with an equilateral hexagonal protrusion that can be inserted into the insertion groove.
[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0013] 1. The blade head of this utility model is fixed to the long side of the blade body by screws, and the blade head is composed of multiple segments, each segment of the blade head is of equal length. The blade head can be disassembled individually to facilitate the replacement of severely worn parts, and the cost of replacing the blade head is low, thus reducing the cost of use.
[0014] 2. The drive wheel of this utility model has a groove for insertion in the middle. The adjustment handle is inserted into the groove. When adjusting the cutter, the drive wheel is rotated slightly by rotating the adjustment handle, which makes it easy to adjust the gap between the cutters and is convenient to use.
[0015] 3. This utility model improves the bag-making machine for vacuum packaging bag processing, which has the advantages of reducing the cost of using the cutter and facilitating the adjustment of the cutter, thus effectively solving the problems and shortcomings of the existing technology and equipment. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial structural schematic diagram of the present invention;
[0019] Figure 3 This is a partial cross-sectional view of the present invention.
[0020] Figure 4 This is an exploded view of the cutting blade of this utility model;
[0021] Figure 5 This is a schematic diagram of the adjusting crank part of this utility model.
[0022] In the diagram: 1. Frame; 2. Feeding device; 3. Dividing and folding device; 4. Heat sealing device; 5. Traction device; 6. Guide bracket; 7. Upper knife holder; 8. Lower knife holder; 9. Cutting knife; 10. Connecting rod; 11. Drive wheel; 12. Insertion groove; 13. Adjustment handle; 901. Knife body; 902. Knife head. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figures 1 to 5 This utility model provides a specific technical implementation scheme for a bag-making machine for vacuum packaging bag processing:
[0025] A bag-making machine for vacuum packaging bags includes: a frame 1, a feeding device 2, a dividing and folding device 3, a heat-sealing device 4, a traction device 5, a guide bracket 6, an upper knife holder 7, a lower knife holder 8, a cutter 9, a connecting rod 10, a drive wheel 11, an insertion groove 12, an adjusting handle 13, a blade body 901, and a cutter head 902; the feeding device 2 and the dividing and folding device 3 are installed at the feeding end of the frame 1; the heat-sealing device 4 is installed above the frame 1; the traction device 5 is installed near the discharge end of the frame 1; the guide bracket 6 is fixed on both sides of the discharge end of the frame 1, and the upper knife holder 7 is installed between the guide brackets 6, with both ends of the upper knife holder 7 slidably connected to the guide brackets 6; the lower knife holder 8 is fixed on the inner side of the frame 1 below the upper knife holder 7; the cutter 9... The cutters 9 are fixed on the upper cutter holder 7 and the lower cutter holder 8, and the cutters 9 on the upper cutter holder 7 and the lower cutter holder 8 are arranged opposite each other; the drive wheel 11 is rotatably arranged on both sides of the discharge end of the frame 1, and the middle position of the drive wheel 11 is provided with an insertion groove 12; the insertion groove 12 is an equilateral hexagonal groove; the two ends of the connecting rod 10 are respectively hinged to the lower cutter holder 8 and the drive wheel 11; the adjusting handle 13 is movably inserted into the insertion groove 12; the adjusting handle 13 is a tubular structure in the shape of the English letter "L", and one end of the adjusting handle 13 is provided with an equilateral hexagonal protrusion that inserts into the insertion groove 12; when adjusting the cutter 9, the drive wheel 11 is rotated slightly by rotating the adjusting handle 13, which facilitates the adjustment of the gap between the cutters 9 and is convenient to use.
[0026] The cutter 9 consists of a blade body 901 and a cutter head 902. The blade body 901 is a rectangular plate structure, and the long side of the rectangular plate structure has a protrusion for fixing the cutter head 902. The blade body 901 also has a threaded hole for fixing the cutter head 902. The cutter head 902 is fixed to the long side of the blade body 901 by screws. The cutter head 902 is composed of multiple segments, and each segment of the cutter head 902 is of equal length. The cutter head 902 has a trapezoidal strip structure with a rectangular notch in cross-section, and countersunk holes for installing fixing screws are provided on the cutter head 902. The cutter head 902 can be disassembled separately to facilitate the replacement of severely worn parts. The cost of replacing the cutter head 902 is low, thus reducing the operating cost.
[0027] Specific implementation steps:
[0028] When the cutter head 902 needs to be replaced, insert the adjusting handle 13 into the insertion groove 12, rotate the adjusting handle 13 to drive the drive wheel 11 to rotate, so that the cutter 9 separates. Loosen the screw between the cutter head 902 and the cutter body 901, remove the cutter head 902, and replace it with a new cutter head 902. Alternatively, the cutter 9 can be disassembled as a whole and the cutter head 902 can be polished. By rotating the adjusting handle 13 slightly, the upper cutter holder 7 can be moved slightly, which makes it easy to adjust the gap of the cutter 9 and test the cutting effect of the cutter 9.
[0029] In summary, this vacuum packaging bag making machine features a multi-segment cutter head fixed to the long side of the cutter body with screws. Each segment of the cutter head is of equal length, allowing for individual disassembly and replacement of severely worn sections, thus reducing replacement costs and overall operating costs. A groove is provided in the center of the drive wheel, into which an adjustment handle is inserted. Adjusting the cutter involves rotating the adjustment handle to slightly rotate the drive wheel, facilitating adjustment of the gap between the cutters. This invention, through improvements to the vacuum packaging bag making machine, reduces cutter operating costs and facilitates cutter adjustment, effectively solving the problems and shortcomings of existing technologies and equipment.
[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 bag-making machine for vacuum packaging bag processing, comprising: The machine frame (1), feeding device (2), dividing and folding device (3), heat sealing device (4), traction device (5), guide bracket (6), upper blade holder (7), lower blade holder (8), cutter (9), connecting rod (10), drive wheel (11), insertion groove (12), adjusting handle (13), blade body (901), and cutter head (902) are characterized in that: the feeding device (2) and dividing and folding device (3) are installed at the feeding end of the machine frame (1); the heat sealing device (4) is installed above the machine frame (1); the traction device (5) is installed at the position of the machine frame (1) near the discharge end; the guide bracket (6) is fixed on both sides of the discharge end of the machine frame (1), and the upper blade holder (7) is installed between the guide brackets (6), and the two ends of the upper blade holder (7) are slidably connected to the guide brackets (6); The lower blade holder (8) is fixed on the inner side of the frame (1) below the upper blade holder (7); the cutter (9) is fixed on the upper blade holder (7) and the lower blade holder (8), and the cutters (9) on the upper blade holder (7) and the lower blade holder (8) are arranged opposite to each other; the drive wheel (11) is rotatably arranged on both sides of the discharge end of the frame (1), and the drive wheel (11) has an insertion groove (12) in the middle position; the two ends of the connecting rod (10) are respectively hinged to the lower blade holder (8) and the drive wheel (11); the adjusting handle (13) is movably inserted into the insertion groove (12); the cutter (9) is composed of a blade body (901) and a blade head (902); the blade head (902) is fixed on the long side of the blade body (901) by screws, and the blade head (902) is composed of multiple segments, and the length of each segment of the blade head (902) is equal.
2. The bag-making machine for vacuum packaging bag processing according to claim 1, characterized in that: The blade body (901) is a rectangular plate structure, and the long side of the rectangular plate structure is provided with a protrusion for fixing the blade head (902), and the blade body (901) is provided with a threaded hole for fixing the blade head (902).
3. The bag-making machine for vacuum packaging bag processing according to claim 1, characterized in that: The cutter head (902) has a trapezoidal strip structure with a rectangular notch in cross section, and the cutter head (902) has a countersunk hole for installing and fixing screws.
4. The bag-making machine for vacuum packaging bag processing according to claim 1, characterized in that: The insertion groove (12) is an equilateral hexagonal groove.
5. A bag-making machine for vacuum packaging bag processing according to claim 1, characterized in that: The adjusting handle (13) is a tubular structure in the shape of the English letter "L", and one end of the adjusting handle (13) is provided with an equilateral hexagonal protrusion that is inserted into the insertion groove (12).