Rolling bag cutting machine

By adopting a design in which the upper and lower connecting plates slide and are connected to the moving plate and the fixed plate in the continuous roll bag cutting machine, the problem of low cutter replacement efficiency in the existing technology is solved, and the rapid replacement of cutters and the improvement of work efficiency are realized.

CN223764883UActive Publication Date: 2026-01-06UNI PAK PACKING TECH SHENZHEN CO LTD
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Patent Information

Application Number
CN202423125730.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-01-06
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Existing continuous roll bag cutting machines require tightening multiple bolts when changing the cutter, resulting in low replacement efficiency, long downtime, and reduced bag cutting efficiency.

Method used

The design adopts a sliding connection between the upper and lower connecting plates, the moving plate, and the fixed plate. It can be quickly fixed by the upper and lower insert rods, simplifying the cutter replacement process. Only two nuts need to be unscrewed to replace the cutter head.

Benefits of technology

It enables quick blade replacement, improves the working efficiency of the bag cutting machine, and reduces downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rolling bag cutting machine. The rolling bag cutting machine comprises a machine frame, a movable assembly and a fixed assembly. The rack comprises an upper supporting frame, a vertical plate and a lower supporting frame, the fixing assembly comprises a fixing plate, a lower connecting plate and a lower cutter, and the lower connecting plate is connected to the lower cutter in a sliding mode. Lower insertion rods are inserted into one side of the fixing plate, the lower insertion rods can be inserted into the lower sliding strips, a lower fixing rod is arranged in the fixing plate in a penetrating mode, the two ends of the lower fixing rod are in threaded connection with lower nuts, and the lower fixing rod can be arranged on the lower insertion rods in a penetrating mode. The moving assembly comprises a moving plate, an upper connecting plate and an upper cutter, the upper connecting plate is slidably connected to the moving plate, an upper inserting rod is inserted into one side of the moving plate, the upper inserting rod can be inserted into the upper sliding strip, an upper fixing rod is arranged in the fixing plate in a penetrating mode, the two ends of the upper fixing rod are in threaded connection with upper nuts, and the upper fixing rod can be arranged on the upper inserting rod in a penetrating mode. According to the rolling bag cutting machine, the tool bit can be rapidly replaced, and the working efficiency of the bag cutting machine is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of packaging bag processing equipment, and in particular to a continuous roll bag cutting machine. Background Technology

[0002] With the development of the packaging industry, the demand for automated and high-efficiency packaging equipment is increasing. Continuous roll bag cutters, as an important type of packaging equipment, are widely used in the food, pharmaceutical, and daily necessities industries to cut continuous packaging materials into individual bags or to cut easy-tear openings between adjacent bags. These machines not only improve production efficiency but also help reduce packaging costs and ensure packaging quality.

[0003] In current continuous roll bag cutting machines, the cutter is connected to the moving module. When the moving module moves up and down, it can drive the cutter to move up and down. Currently, the cutter and the moving module are usually connected by bolts, which allows for the replacement and maintenance of the cutter.

[0004] However, in the aforementioned existing technology, when replacing the cutter, it is necessary to tighten multiple bolts to replace the cutter, which results in low replacement efficiency, long downtime, and reduced bag cutting efficiency. Utility Model Content

[0005] Based on the above situation, the main purpose of this utility model is to provide a continuous roll bag cutting machine to solve the problem that existing continuous roll bag cutting machines require changing the cutter by tightening multiple bolts, resulting in low replacement efficiency, long downtime, and reduced bag cutting efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A continuous roll bag cutting machine includes a frame, a moving component, and a fixing component;

[0008] The frame includes an upper support frame, an upright plate, and a lower support frame, wherein the upper support frame and the lower support frame are respectively fixed to the upper and lower sides of the upright plate;

[0009] The fixing assembly includes a fixing plate, a lower connecting plate, and a lower cutting blade. The fixing plate is fixed to the lower support frame. A sliding strip is fixed to one side of the lower connecting plate. A sliding groove is opened on the fixing plate. The sliding strip is slidably connected to the sliding groove. A lower insert rod is inserted into one side of the fixing plate. Each of the lower insert rods can be inserted into the sliding strip. A lower fixing rod passes through the fixing plate. Both ends of the lower fixing rod are threaded with a lower nut. The lower fixing rod can pass through the lower insert rod.

[0010] The movable component includes a movable plate, an upper connecting plate, and an upper cutter. The movable plate can be located at the position of the upper support frame. An upper slide bar is fixed on one side of the upper connecting plate. An upper sliding groove is opened on the movable plate. The upper slide bar is slidably connected in the upper sliding groove. An upper insert rod is inserted on one side of the movable plate. The upper insert rod can be inserted into the upper slide bar. An upper fixing rod passes through the fixed plate. The two ends of the upper fixing rod are threaded with upper nuts. The upper fixing rod can pass through the upper insert rod.

[0011] Preferably, both the lower insertion rod and the upper insertion rod are provided in multiple forms;

[0012] Each of the lower insert rods has a lower connecting rod fixed to its end, and each of the upper insert rods has an upper connecting rod fixed to its end.

[0013] Preferably, both ends of the lower connecting rod are fixed with lower crossbars, and a lower spring is fixed between the lower crossbars and the fixing plate;

[0014] The upper connecting rod is fixed with upper crossbars at both ends, and an upper spring is fixed between the upper crossbars and the moving plate.

[0015] Preferably, a lower cylinder is fixed to the side wall of the fixing plate, and a sliding rod is inserted into the lower cylinder, the sliding rod being fixed to the lower crossbar;

[0016] The side wall of the movable plate is fixed with an upper cylinder, and an upper sliding rod is inserted into the upper cylinder. The upper sliding rod is fixed to the upper crossbar.

[0017] Preferably, the cross-sections of the upper sliding groove, upper sliding bar, lower sliding groove, and lower sliding bar are all T-shaped structures.

[0018] Preferably, the upper support frame is provided with an upper groove, and the lower support frame is provided with a lower groove;

[0019] The fixed plate is fixed in the lower groove, and the movable plate can move between the two upper grooves.

[0020] The beneficial effects of this utility model are as follows: When the lower cutter head needs to be replaced, simply unscrew the two nuts, pull out the lower fixing rod, and pull each lower insert rod out of the lower limit groove. At this time, the lower cutter head and the lower connecting plate can be pulled out together, completing the quick replacement of the lower cutter head. This avoids the need to tighten many bolts when replacing the cutter head, thus increasing the speed of replacing the lower cutter head. Similarly, when the upper cutter head needs to be replaced, simply unscrew the two nuts, pull out the upper fixing rod, and pull each upper insert rod out of the upper limit groove. At this time, the upper cutter head and the upper connecting plate can be pulled out together, completing the quick replacement of the upper cutter head. This application sets the upper and lower connecting plates of the upper and lower cutter heads to slide and connect to the moving plate and the fixed plate respectively, and quickly fix them through the upper and lower insert rods, enabling quick replacement of the cutter head and improving the working efficiency of the bag cutting machine.

[0021] Other beneficial effects of this utility model will be explained in detail through the introduction of specific technical features and technical solutions in the specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a continuous roll-cutting bag machine according to the present invention.

[0023] Figure 2 This is a cross-sectional view showing the moving components of a continuous roll bag cutting machine according to the present invention.

[0024] Figure 3 This is a cross-sectional view showing the fixing components of a continuous roll bag cutting machine according to the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Frame; 11. Horizontal plate; 12. Upper support frame; 121. Upper groove; 13. Vertical plate; 14. Lower support frame; 141. Lower groove; 2. Moving assembly; 21. Moving plate; 211. Upper sliding groove; 212. Upper slot; 213. Upper insertion rod; 214. Upper round hole; 215. Upper fixing rod; 216. Upper nut; 217. Upper positioning hole; 22. Upper connecting plate; 221. Upper sliding bar; 222. Upper limit groove; 23. Upper cutter; 24. Upper connecting rod; 25. Upper crossbar; 26. 27. Upper spring; 28. Upper cylinder; 3. Upper slide rod; 4. Fixing assembly; 31. Fixing plate; 311. Lower slide groove; 312. Lower slot; 313. Lower insert rod; 314. Lower round hole; 315. Lower fixing rod; 316. Lower nut; 317. Lower positioning hole; 32. Lower connecting plate; 321. Lower slide bar; 322. Lower limit groove; 33. Lower cutter; 34. Lower connecting rod; 35. Lower crossbar; 36. Lower spring; 37. Lower cylinder; 38. Lower slide rod; 4. Drive assembly; 41. Hydraulic cylinder. Detailed Implementation

[0027] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0028] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0029] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0030] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] Reference Figure 1-3 This utility model provides a continuous roll bag cutting machine, including a frame 1, a moving component 2, a fixed component 3, and a drive component 4. Both the moving component 2 and the fixed component 3 are disposed within the frame 1, with the moving component 2 positioned above the fixed component 3. The moving component 2 can move up and down relative to the fixed component 3 to cut the bag, while the drive component 4 drives the moving component 2 to move up and down. It should be noted that continuous roll bag cutting machines typically also include a traction mechanism to move the bag, which is prior art and will not be described further in this application.

[0032] The frame 1 includes a horizontal plate 11, an upper support frame 12, an upright plate 13, and a lower support frame 14. Two upper support frames 12, two upright plates 13, and two lower support frames 14 are provided. The upper support frame 12 is located above the lower support frame 14, and the upright plate 13 is fixed between the upper support frame 12 and the lower support frame 14. The upper surfaces of both upper support frames 12 are fixed to the lower surface of the horizontal plate 11, and the two upper support frames 12 are located at opposite ends of the lower surface of the upper support frame 12. A fixing component 3 can be fixed between the two lower support frames 14, a moving component 2 can move between the two upper support frames 12, and a driving component 4 is a hydraulic cylinder 41. The hydraulic cylinder 41 is fixed to the upper side of the horizontal plate 11, is vertically arranged, and its extension rod extends to the lower side of the horizontal plate 11 and connects to the moving component 2, driving the moving component 2 to move up and down.

[0033] The fixing component 3 includes a fixing plate 31, a lower connecting plate 32 and a lower cutter 33. The two lower support frames 14 are provided with a lower groove 141 in the middle. The two ends of the fixing plate 31 are respectively fixed in the two lower grooves 141. The lower connecting plate 32 is fixed to the lower cutter 33 and the lower connecting plate 32 is connected to the fixing component 3.

[0034] The movable component 2 includes a movable plate 21, an upper connecting plate 22, and an upper cutter 23. An upper groove 121 is provided in the middle of the two upper support frames 12. The movable plate 21 can be positioned between the two upper support frames 12, and can move vertically between the two upper support frames 12, the upright plate 13, and the lower support frame 14. The movable plate 21 is fixed to the lower end of the drive cylinder telescopic rod. The upper connecting plate 22 and the upper cutter 23 are fixed together. The upper connecting plate 22 is connected to the movable plate 21. As the movable plate 21 moves up and down, the upper cutter 23 moves closer to the lower cutter 33, thereby cutting the bag placed on the lower cutter 33.

[0035] A sliding strip 321 is fixed on one side of the lower connecting plate 32. A sliding groove 311 is provided on the upper surface of the fixing plate 31. The cross-sectional shape of the sliding groove 311 and the sliding strip 321 is T-shaped. The extension direction of the sliding groove 311 and the sliding strip 321 is the same as the arrangement direction of the two lower support frames 14. The two ends of the sliding groove 311 extend to the two ends of the fixing plate 31. The sliding strip 321 is slidably connected in the sliding groove 311, so that the lower connecting plate 32 can slide out from the lower groove 141 along the extension direction of the sliding groove 311.

[0036] The fixed plate 31 has multiple lower slots 312 on one side, each lower slot 312 is connected to the lower slide groove 311, and each lower slot 312 is fitted with a lower rod 313. The lower slide bar 321 has multiple lower limit grooves 322, and each lower rod 313 can be inserted into the lower limit groove 322. When the rod is inserted into the lower limit groove 322, it can prevent the lower connecting plate 32 from sliding.

[0037] A lower circular hole 314 is provided in the fixing plate 31. The lower circular hole 314 passes through the fixing plate 31 and can communicate with each lower slot 312. Each lower insertion rod 313 is provided with a lower positioning hole 317. When the lower insertion rod 313 is inserted into the lower limit groove 322, the lower positioning hole 317 and the lower circular hole 314 are connected. A lower fixing rod 315 passes through the lower circular hole 314. Both ends of the lower fixing rod 315 are provided with threaded sections. Both ends of the lower fixing rod 315 are threadedly connected with a lower nut 316. The lower nut 316 can fix the lower fixing rod 315 in the lower circular hole 314. The lower fixing rod 315 can be inserted into each lower insertion rod 313 to fix the position of the lower insertion rod 313, thereby fixing the lower connecting plate 32. When the lower cutter head needs to be replaced, simply unscrew the two nuts 316, pull out the lower fixing rod 315, and pull out each lower insert rod 313 from the lower limit groove 322. At this time, the lower cutter head and the lower connecting plate 32 can be pulled out together, completing the quick replacement of the lower cutter head. This avoids the need to tighten more bolts when replacing the cutter head and increases the speed of replacing the lower cutter head.

[0038] An upper sliding bar 221 is fixed on one side of the upper connecting plate 22. An upper sliding groove 211 is provided on the lower surface of the moving plate 21. The cross-sectional shape of the upper sliding groove 211 and the upper sliding bar 221 is T-shaped. The extension direction of the upper sliding groove 211 and the upper sliding bar 221 is the same as that of the lower sliding bar 321. The two ends of the upper sliding groove 211 extend to the two ends of the moving plate 21. The upper sliding bar 221 is slidably connected in the upper sliding groove 211, so that the upper connecting plate 22 can slide out of the upper sliding groove 211 along the extension direction of the upper sliding groove 211.

[0039] Multiple upper slots 212 are provided on one side of the movable plate 21. Each upper slot 212 is connected to the upper sliding groove 211. An upper rod 213 is inserted into each upper slot 212. Multiple upper limit slots 222 are provided on the upper sliding bar 221. Each upper rod 213 can be inserted into the upper limit slot 222. When the rod is inserted into the upper limit slot 222, it can prevent the upper connecting plate 22 from sliding.

[0040] The movable plate 21 has an upper circular hole 214 that penetrates the movable plate 21 and communicates with each lower slot 312. Each upper insertion rod 213 has an upper positioning hole 217. When the upper insertion rod 213 is inserted into the upper limit slot 222, the upper positioning hole 217 and the upper circular hole 214 are connected. An upper fixing rod 215 passes through the upper circular hole 214. Both ends of the upper fixing rod 215 are provided with threaded sections. Both ends of the upper fixing rod 215 can be threadedly connected to upper nuts 216, which can fix the upper fixing rod 215 in the upper circular hole 214. The upper fixing rod 215 can be inserted into each upper insertion rod 213 to fix the position of the upper insertion rod 213, thereby fixing the upper connecting plate 22. When the upper cutter head needs to be replaced, simply unscrew the two upper nuts 216, pull out the upper fixing rod 215, and pull out each upper insert rod 213 from the upper limit slot 222. At this time, the upper cutter head and the upper connecting plate 22 can be pulled out together, completing the quick replacement of the upper cutter head.

[0041] In one embodiment, each lower insertion rod 313 has a lower connecting rod 34 fixed to its end. Pulling the lower connecting rod 34 can move all the lower connecting rods 34 together. A lower crossbar 35 is fixed to both ends of the lower connecting rod 34. A lower spring 36 is fixed between the lower crossbar 35 and the side wall of the fixing plate 31. The two ends of the lower spring 36 are connected between the fixing plate 31 and the lower crossbar 35. Under normal conditions, the lower spring 36 can push the lower insertion rod 313 out of the lower limit groove 322.

[0042] Each upper insertion rod 213 has an upper connecting rod 24 fixed to its end. Pulling the upper connecting rod 24 can move all the upper connecting rods 24 together. Upper crossbars 25 are fixed to both ends of the upper connecting rods 24. An upper spring 26 is fixed between the upper crossbar 25 and the side wall of the moving plate 21. The two ends of the upper spring 26 are connected between the moving plate 21 and the upper crossbar 25. Normally, the upper spring 26 can push the upper insertion rods 213 out of the upper limit groove 222. In use, after pulling out the lower fixing rod 315, the lower insertion rod 313 will pop out under the action of the lower spring 36, causing the lower insertion rod 313 to disengage from the lower limit groove 322. At this time, it is not necessary to pull out the lower insertion rods 313 one by one, and the lower cutter 33 can be quickly replaced. Similarly, pulling out the upper fixing rod 215 can also quickly replace the upper cutter 23.

[0043] In one embodiment, two lower cylinders 37 are fixed to the side wall of the fixed plate 31. The lower cylinders 37 are located at one end of the lower crossbar 35, and a lower sliding rod 38 is inserted into the lower cylinder 37. The lower sliding rod 38 is fixed to the lower crossbar 35. Two upper cylinders 27 are fixed to the side wall of the fixed plate 31 of the movable plate 21. The upper cylinders 27 are located at one end of the upper crossbar 25, and an upper sliding rod 28 is inserted into the upper cylinder 27. The upper sliding rod 28 is fixed to the upper crossbar 25. The upper sliding rod 28 and the lower sliding rod 38 can guide the movement of the upper crossbar 25 and the lower crossbar 35, respectively, so that the upper insert rod 213 and the lower insert rod 313 can pop out from the upper limit groove 222 and the lower limit groove 322, respectively.

[0044] The implementation principle of this utility model is as follows: When the lower cutter head needs to be replaced, simply unscrew the two lower nuts 316, pull out the lower fixing rod 315, and pull out each lower insert rod 313 from the lower limit groove 322. At this time, the lower cutter head and the lower connecting plate 32 can be pulled out together, completing the quick replacement of the lower cutter head and avoiding the need to tighten more bolts when replacing the cutter head, thus improving the speed of replacing the lower cutter head. Similarly, when the upper cutter head needs to be replaced, simply unscrew the two upper nuts 216, pull out the upper fixing rod 215, and pull out each upper insert rod 213 from the upper limit groove 222. At this time, the upper cutter head and the upper connecting plate 22 can be pulled out together, completing the quick replacement of the upper cutter head. In this application, the upper and lower connecting plates 32 are slidably connected to the moving plate 21 and the fixing plate 31 respectively, and are quickly fixed by the upper and lower insert rods 313, which enables the quick replacement of the cutter head and improves the working efficiency of the bag cutting machine.

[0045] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0046] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.

Claims

1. A continuous roll cutting bag machine characterized by, The machine frame, the moving assembly and the fixed assembly are included. The machine frame includes an upper support frame, a vertical plate and a lower support frame, and the upper support frame and the lower support frame are fixed to the upper and lower sides of the vertical plate respectively. The fixed assembly includes a fixed plate, a lower connecting plate and a lower cutter, the fixed plate is fixed to the lower support frame, one side of the lower connecting plate is fixed with a lower sliding strip, the fixed plate is provided with a lower sliding groove, the lower sliding strip is slidably connected to the lower sliding groove, one side of the fixed plate is provided with a lower inserting rod, each lower inserting rod can be inserted into the lower sliding strip, a lower fixed rod is arranged in the fixed plate, and two ends of the lower fixed rod are threadedly connected with lower nuts, and the lower fixed rod can be arranged in the lower inserting rod. The moving assembly includes a moving plate, an upper connecting plate and an upper cutter, the moving plate can be located at the position of the upper support frame, one side of the upper connecting plate is fixed with an upper sliding strip, the moving plate is provided with an upper sliding groove, the upper sliding strip is slidably connected to the upper sliding groove, one side of the moving plate is provided with an upper inserting rod, the upper inserting rod can be inserted into the upper sliding strip, an upper fixed rod is arranged in the fixed plate, and two ends of the upper fixed rod are threadedly connected with upper nuts, and the upper fixed rod can be arranged in the upper inserting rod.

2. A continuous web bag cutting machine as claimed in claim 1, wherein, The lower inserting rod and the upper inserting rod are both provided with a plurality of The end of each lower inserting rod is fixed with a lower connecting rod, and the end of each upper inserting rod is fixed with an upper connecting rod.

3. A continuous web bag cutting machine as claimed in claim 2, wherein, Two ends of the lower connecting rod are fixed with a lower horizontal rod, and a lower spring is arranged between the lower horizontal rod and the fixed plate. Two ends of the upper connecting rod are fixed with an upper horizontal rod, and an upper spring is arranged between the upper horizontal rod and the moving plate.

4. A continuous web bag cutting machine as claimed in claim 3, wherein, A lower cylinder is fixed to the side wall of the fixed plate, a lower sliding rod is arranged in the lower cylinder, and the lower sliding rod is fixed to the lower horizontal rod. An upper cylinder is fixed to the side wall of the moving plate, an upper sliding rod is arranged in the upper cylinder, and the upper sliding rod is fixed to the upper horizontal rod.

5. A continuous web bag cutting machine as claimed in claim 1, wherein, The cross section of the upper sliding groove, the upper sliding strip, the lower sliding groove and the lower sliding strip is T-shaped.

6. A continuous web bag cutting machine as claimed in claim 1, wherein, The upper support frame is provided with an upper groove, and the lower support frame is provided with a lower groove. The fixed plate is fixed in the lower groove, and the moving plate can be moved between the two upper grooves.