Bag making fabric bundle rope hole puncher
By designing an automated bag fabric drawstring hole punch, a cylinder-driven cutter is used to automatically cut the drawstring opening on the spunlace bag production line, solving the problem of slow manual cutting speed and achieving efficient and precise drawstring opening production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGYANG COUNTY LINGUANGAN PUNCH MACHINE FACTORY
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-28
AI Technical Summary
In the existing technology, the drawstring cutting speed of spunlace bags is slow and the efficiency of manual operation is low, which cannot meet the high-efficiency requirements of spunlace bag production lines.
Design a bag fabric drawstring hole puncher that includes a fixing block, a cylinder assembly, a connecting shaft, and a cutting assembly. The cylinder drives the connecting shaft to drive the cutter to automatically cut the drawstring hole during the conveying process. Combined with a clamping assembly, the fabric is prevented from moving, thus achieving automated cutting.
It enables rapid and precise cutting of the drawstring opening of spunlace bags, improving production efficiency, reducing manpower waste, and enhancing automation.
Smart Images

Figure CN224562040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bag making cloth punching tools, and more specifically to a bag making cloth drawstring hole puncher. Background Technology
[0002] Spunlace fabric, also known as nonwoven spunlace cloth or spunlace nonwoven fabric, is a nonwoven material made by reinforcing a fiber web with high-pressure water jets. It has a wide range of applications in various fields. Spunlace bags are packaging bags made from spunlace fabric as the base material through processes such as cutting and sewing. Spunlace bags are characterized by being environmentally friendly and biodegradable, soft and skin-friendly, highly absorbent and breathable, and possessing high strength and durability. They are widely used in product packaging in various industries, including food packaging, hygiene product packaging, and dry goods packaging.
[0003] In the production process of spunlace bags, drawstring openings need to be pre-cut on the spunlace fabric for threading drawstrings. By tightening the two ends of the drawstrings through the drawstring openings, the opening of the spunlace bag can be tightened. However, in the existing technology, drawstring openings are usually cut manually on the spunlace fabric using tools such as punching pins or scissors. However, this method is slow, wastes a lot of manpower, and cannot meet the urgent need of the spunlace bag production line to quickly cut drawstring openings for a large number of spunlace bags.
[0004] Therefore, how to provide a punch that is simple in structure, reasonable in design, highly automated, and can quickly cut the drawstring opening of bag fabric is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a bag fabric drawstring hole puncher to solve the technical problems of slow speed, low efficiency and waste of a lot of manpower in the existing technology of manually cutting drawstring holes on bag fabric using punching tools.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A bag fabric drawstring hole puncher, which can be fixed on a workbench, includes a fixing block, a fixing post, a cylinder assembly, a connecting shaft, and a cutting assembly. The bottom end of the fixing block can be fixed to the workbench. The fixing block has a bag fabric conveying channel parallel to the workbench surface and extending through both ends. The fixing block has a sliding through hole extending through the bag fabric conveying channel in a direction perpendicular to the workbench surface. The bottom end of the fixing post is vertically fixedly connected to the upper end face of the fixing block. The cylinder assembly is located above the fixing block and fixedly connected to the top end of the fixing post. Its telescopic rod is arranged downward and corresponds to the sliding through hole. The first end of the connecting shaft is detachably connected to the telescopic rod of the cylinder assembly, and its axis extends through the sliding through hole. The cutting assembly includes a column and a cutter. The top end of the column is fixedly connected to the second end of the connecting shaft, and the cutter is fixed to the bottom end of the column. The column slides through the sliding through hole, causing the cutter to cut the bag fabric laid in the bag fabric conveying channel.
[0008] This utility model discloses a bag fabric drawstring hole puncher. During the conveying process of the tensioned bag fabric on the production line, the bag fabric is threaded through the bag fabric conveying channel. The extension rod of the cylinder assembly allows the column to pass through the sliding through hole on the fixed block from top to bottom. During this process, the cutter at the bottom of the column can cut the drawstring hole in the bag fabric in the bag fabric conveying channel. This utility model's bag fabric drawstring hole puncher has a simple structure and reasonable design. It can quickly punch holes in the bag fabric during the conveying process, has a high degree of automation, and saves a lot of manpower.
[0009] Preferably, one side of the bag fabric conveying channel, arranged along its conveying direction, penetrates one side wall of the fixing block.
[0010] Preferably, the cylinder assembly includes a cylinder mounting base and a cylinder; the cylinder mounting base is located above the fixing block and is fixedly connected to the top end of the fixing column, and the cylinder mounting base is provided with an assembly hole; the cylinder is installed in the assembly hole and its telescopic rod is arranged downwards corresponding to the sliding through hole.
[0011] Preferably, a bag fabric drawstring hole punch further includes a threaded sleeve, the inner wall of which is machined with internal threads, and the telescopic rod of the cylinder and the first end of the connecting shaft are both machined with external threads, and the two are respectively threaded to the two ends of the threaded sleeve.
[0012] The beneficial effect of adopting the above technical solution is that it facilitates the disassembly of the connecting shaft and the cutting components connected to it for maintenance and replacement.
[0013] Preferably, a bag fabric drawstring hole punch further includes a bag fabric pressing assembly to restrict the movement of the bag fabric. The bag fabric pressing assembly includes a connecting plate, a sliding rod, a pressure block, and a spring. One end of the connecting plate is fixed to the connecting shaft, and the other end has a through hole. The sliding rod slides through the through hole, and its top protrudes through the through hole and is connected to a limit member. The top of the fixing block has a clearance hole that communicates with the bag fabric conveying channel along a direction perpendicular to the worktable surface, and the axis of the sliding rod passes through the clearance hole. The pressure block is fixed to the bottom end of the sliding rod. The spring is sleeved on the sliding rod, and its two ends abut against the lower surface of the connecting plate and the top of the pressure block, respectively. The pressure block can slide through the clearance hole to press the bag fabric in the bag fabric conveying channel against the inner bottom wall of the bag fabric conveying channel.
[0014] The beneficial effect of adopting the above technical solution is that when the connecting plate moves downward with the connecting shaft, it slides relative to the slide bar. The distance between the connecting plate and the pressure block decreases and squeezes the spring. The spring shortens and applies force to the pressure block. The pressure block moves downward under force and passes through the clearance hole to press the bag fabric tightly onto the inner bottom wall of the bag fabric conveying channel, preventing the bag fabric from moving during punching and improving the efficiency and accuracy of punching.
[0015] Preferably, the limiting component is a nut, and the top of the slide rod is threaded and threadedly connected to the nut.
[0016] The beneficial effect of adopting the above technical solution is that the nut can prevent the connecting plate from detaching from the top of the slide rod.
[0017] Preferably, a bag fabric drawstring hole puncher further includes a controller, which is electrically connected to the cylinder.
[0018] The beneficial effect of adopting the above technical solution is that the operation of the cylinder is controlled by the controller, which makes the device more automated.
[0019] Preferably, both the fixing plate and the cylinder fixing seat are made of stainless steel. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0021] Figure 1 A schematic diagram of the overall structure of this utility model;
[0022] Figure 2 A schematic diagram of the overall structure provided by this utility model from another angle;
[0023] Figure 3 for Figure 1 A front view of the overall structure;
[0024] Figure 4 This is a schematic diagram of the fixing block in this utility model;
[0025] Figure 5 This is a bottom view of the fixing block in this utility model;
[0026] Figure 6 This is a side view of the fixing block in this utility model;
[0027] Figure 7 A schematic diagram showing the connection between the cutting assembly and the bag fabric clamping assembly and the connecting shaft;
[0028] Figure 8 This is a schematic diagram of the cylinder mounting base in this utility model.
[0029] Wherein: 1-fixed block, 2-bag fabric conveying channel, 3-sliding through hole, 4-fixed column, 5-cylinder assembly, 6-connecting shaft, 7-cutting assembly, 8-threaded sleeve, 9-bag fabric pressing assembly, 11-avoidance hole, 51-cylinder fixing seat, 52-cylinder, 71-column, 72-cutting blade, 91-connecting plate, 92-slide rod, 93-limiting component, 94-pressure block, 95-spring, 511-assembly hole. Detailed Implementation
[0030] 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.
[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] See appendix Figures 1 to 8 This utility model discloses a bag fabric drawstring hole puncher, which can be fixed on a workbench and includes a fixing block 1, a fixing post 4, a cylinder assembly 5, a connecting shaft 6, and a cutting assembly 7. The bottom end of the fixing block 1 can be fixed to the workbench. The fixing block 1 has a bag fabric conveying channel 2 that is parallel to the workbench surface and extends through both ends. The fixing block 1 has a sliding through hole 3 that extends through the bag fabric conveying channel 2 along the direction perpendicular to the workbench surface. The bottom end of the fixing post 4 is vertically fixedly connected to the upper end face of the fixing block 1. The cylinder... Component 5 is located above the fixed block 1 and is fixedly connected to the top of the fixed column 4. Its telescopic rod is arranged downward and corresponds to the sliding through hole 3. The first end of the connecting shaft 6 is detachably connected to the telescopic rod of the cylinder component 5, and its axis passes through the sliding through hole 3. The cutting component 7 includes a column 71 and a cutter 72. The top of the column 71 is fixedly connected to the second end of the connecting shaft 6, and the cutter 72 is fixed at the bottom of the column 71. The column 71 slides through the sliding through hole 3 so that the cutter 72 cuts the bag fabric laid in the bag fabric conveying channel 2.
[0034] Specifically, the height of the fixing block 1 is 7cm, and the length of the bag fabric conveying channel 2 is 12cm.
[0035] Specifically, the bag fabric conveying channel 2 is arranged along its conveying direction and one side of the fixed block 1 passes through one side wall.
[0036] In some embodiments, the cylinder assembly 5 includes a cylinder mounting base 51 and a cylinder 52; the cylinder mounting base 51 is located above the fixing block 1 and is fixedly connected to the top of the fixing column 4, and the cylinder mounting base 51 is provided with an assembly hole 511; the cylinder 52 is installed in the assembly hole 511 and its telescopic rod is arranged downwards corresponding to the sliding through hole 3.
[0037] In some specific examples, a bag fabric drawstring hole punch also includes a threaded sleeve 8, on the inner wall of which internal threads are machined, and external threads are machined on the telescopic rod of the cylinder 52 and the first end of the connecting shaft 6, and the two are respectively threaded to the two ends of the threaded sleeve 8.
[0038] The connecting shaft 6 is connected to the telescopic rod of the cylinder 52 via the threaded sleeve 8. When the connecting shaft 6 and the cutting assembly 7 need to be repaired or replaced, the connecting shaft 6 can be quickly removed from the threaded sleeve 8.
[0039] In some embodiments, a bag fabric drawstring hole puncher further includes a bag fabric pressing assembly 9 for restricting the movement of the bag fabric. The bag fabric pressing assembly 9 includes a connecting plate 91, a slide rod 92, a pressure block 94, and a spring 95. One end of the connecting plate 91 is fixed to the connecting shaft 6, and the other end has a through hole. The slide rod 92 slides through the through hole, and its top protrudes through the through hole and is connected to a limit member 93. The top of the fixing block 1 has a clearance hole 11 that communicates with the bag fabric conveying channel 2 along the direction perpendicular to the worktable surface, and the axis of the slide rod 92 passes through the clearance hole 11. The pressure block 94 is fixed to the bottom end of the slide rod 92. The spring 95 is sleeved on the slide rod 92, and its two ends abut against the lower plate surface of the connecting plate 91 and the top of the pressure block 94, respectively. The pressure block 94 can slide through the clearance hole 11 to press the bag fabric in the bag fabric conveying channel 2 against the inner bottom wall of the bag fabric conveying channel 2.
[0040] When the telescopic rod of cylinder 52 extends, the connecting shaft 6 drives the connecting plate 91 to move downward. The connecting plate 91 slides downward on the slide rod 92 and squeezes the spring 95. The spring 95 is compressed and applies force to the pressure block 94. The pressure block 94 moves downward under force and passes through the clearance hole 11, pressing the bag fabric laid in the bag fabric conveying channel 2 onto the inner bottom wall of the bag fabric conveying channel 2, restricting the movement of the bag fabric and improving the accuracy of punching.
[0041] Specifically, the limiting component 93 is a nut, and the top of the slide rod 92 is threaded and connected to the nut.
[0042] In other specific examples, a bag fabric drawstring hole punch also includes a controller electrically connected to cylinder 52.
[0043] Specifically, both the fixing block 1 and the cylinder fixing seat 51 are made of stainless steel.
[0044] When in use, the controller operates the cylinder, causing its telescopic rod to extend downwards. The telescopic rod of the cylinder drives the connecting shaft to move downwards. The column at the bottom of the connecting shaft passes through the sliding through hole on the fixed block from top to bottom. At the same time, the cutter at the bottom of the column can cut the bag fabric in the bag fabric conveying channel to create the drawstring opening. When the connecting shaft moves downwards, it drives the connecting plate to move. The connecting plate slides relative to the slide rod and squeezes the spring. The spring compression applies force to the pressure block. The pressure block slides through the clearance hole and presses the bag fabric tightly against the inner bottom wall of the bag fabric conveying channel to prevent the bag fabric from moving during punching.
[0045] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A bag fabric drawstring hole puncher, which can be fixed on a workbench, characterized in that, include: Fixed block (1), the bottom end of the fixed block (1) can be fixed on the workbench, the fixed block (1) is provided with a bag fabric conveying channel (2) parallel to the workbench surface and through both ends, and the fixed block (1) is provided with a sliding through hole (3) through the bag fabric conveying channel (2) in a direction perpendicular to the workbench surface. A fixed column (4) is fixedly connected at its bottom end to the upper end face of the fixed block (1) perpendicularly. Cylinder assembly (5), the cylinder assembly (5) is located above the fixed block (1) and is fixedly connected to the top of the fixed column (4), and its telescopic rod is arranged downward and corresponds to the sliding through hole (3); A connecting shaft (6) is provided, the first end of which is detachably connected to the telescopic rod of the cylinder assembly (5), and its axis passes through the sliding through hole (3). The cutting assembly (7) includes a column (71) and a cutter (72). The top end of the column (71) is fixedly connected to the second end of the connecting shaft (6), and the cutter (72) is fixed to the bottom end of the column (71). The column (71) slides through the sliding through hole (3) so that the cutter (72) cuts the bag fabric laid in the bag fabric conveying channel (2).
2. The bag fabric drawstring hole punch according to claim 1, characterized in that, The bag fabric conveying channel (2) is arranged along its conveying direction and one side of the fixed block (1) passes through one side wall.
3. The bag fabric drawstring hole punch according to claim 1, characterized in that, The cylinder assembly (5) includes: A cylinder mounting base (51) is located above the fixing block (1) and is fixedly connected to the top of the fixing column (4), and an assembly hole (511) is provided on the cylinder mounting base (51). Cylinder (52), the cylinder (52) is installed in the assembly hole (511) and its telescopic rod is arranged downward and corresponds to the sliding through hole (3).
4. A bag fabric drawstring hole punch according to claim 1, characterized in that, It also includes a threaded sleeve (8), on the inner wall of the threaded sleeve (8) having internal threads, and external threads being machined on the telescopic rod of the cylinder (52) and the first end of the connecting shaft (6), which are respectively threaded to the two ends of the threaded sleeve (8).
5. A bag fabric drawstring hole punch according to claim 1, characterized in that, It also includes a bag fabric clamping assembly (9) for restricting the movement of the bag fabric, the bag fabric clamping assembly (9) comprising: A connecting plate (91) is provided, one end of which is fixed to the connecting shaft (6), and the other end is provided with a through hole. A sliding rod (92) is slidably inserted in the through hole, and its top protrudes through the through hole and is connected to a limiting member (93); the top of the fixing block (1) is provided with a clearance hole (11) that communicates with the bag fabric conveying channel (2) in a direction perpendicular to the workbench surface, and the axis of the sliding rod (92) passes through the clearance hole (11). Pressure block (94), the pressure block (94) is fixed to the bottom end of the slide rod (92); Spring (95), which is sleeved on the slide rod (92), and its two ends abut against the lower plate surface of the connecting plate (91) and the top of the pressure block (94), respectively; The pressing block (94) can slide through the clearance hole (11) to press the bag fabric in the bag fabric conveying channel (2) against the inner bottom wall of the bag fabric conveying channel (2).
6. A bag fabric drawstring hole punch according to claim 5, characterized in that, The limiting member (93) is a nut, and the top of the slide rod (92) is threaded and threadedly connected to the nut.
7. A bag fabric drawstring hole punch according to claim 1, characterized in that, It also includes a controller, which is electrically connected to the cylinder (52).
8. A bag fabric drawstring hole punch according to claim 3, characterized in that, Both the fixing block (1) and the cylinder fixing seat (51) are made of stainless steel.