Cloth winding machine cutting device

Abstract

The utility model discloses a cloth cutting device of cloth rolling machine, including device frame, device frame bottom butt joint device seat, and device frame inside elevating installation has the elevating seat, elevating seat inside horizontal movement installation has the mobile seat, mobile seat bottom installation electric cutting knife, elevating seat both sides rotatory installation scraper, and still be connected with the reset torsional spring between scraper and elevating seat. The utility model discloses through the limiting component design of optimization, makes the scraper keep open state when rising after cutting, avoids the influence to the fabric after cutting, and the inclined plane design lets the scraper slow reset, prevents the collision and torsional spring damage.

Description

Technical Field

[0001] This utility model relates to the field of fabric cutting technology, and in particular to a fabric rolling machine cutting device. Background Technology

[0002] Fabric rolling machines are a type of machinery widely used in the textile, printing and dyeing, clothing, and leather industries. They are mainly used to roll various fabrics, non-woven fabrics, foams, leathers, paper, and other materials into cylindrical shapes for easy storage, transportation, or subsequent processing.

[0003] In the current fabric production process, factories often use a fabric rolling machine to wind the fabric to a preset length, and then cut it with a fabric cutter or scissors. However, this traditional operation method has significant drawbacks: due to the lack of effective tension control at the fabric cut, the fiber structure becomes loose, leading to frayed edges. At the same time, the fabric is prone to lateral displacement due to mechanical vibration or operational errors when unrestrained, resulting in a decrease in the accuracy of the cutting position. Such problems not only directly damage the quality of the finished product, but also force the subsequent edge sealing process to invest extra time for correction, resulting in a double loss in production efficiency and product yield, ultimately restricting the improvement of the overall production line efficiency.

[0004] Therefore, the applicant discovered that in the prior art, straightening structures are installed on both sides of the cutter. For example, a fabric cutting device for a fabric rolling machine disclosed in patent number CN220392775U, by placing the fabric on the conveyor table, the lifting bracket drives the scraper to move downward to flatten the fabric, the lifting bracket continues to move downward to abut the fabric, and the cutting component effectively cuts the fabric under the drive of the first drive. This has the beneficial effect of preventing frayed edges or offset of the cutting position when cutting the fabric.

[0005] However, the above solution has certain shortcomings. In actual application, when resetting, the scraper will first rotate inward and then move upward. During this process, the scraper will pull the fabric, for example, causing the two pieces of fabric after cutting to be crumpled together. When the scraper driven by the torsion spring is resetting, the spring releases energy instantaneously, causing the scraper end to generate a certain acceleration impact, which can easily cause thin fabrics (such as chiffon and silk) to wrinkle or be stretched and deformed.

[0006] Therefore, the applicant proposes a fabric rolling machine cutting device to solve the problem. Utility Model Content

[0007] This invention provides a cutting device for a fabric rolling machine, which solves the problems mentioned in the background.

[0008] To solve the above-mentioned technical problems, this utility model provides a fabric rolling machine cutting device, including a device frame, a device seat docked at the bottom of the device frame, and a lifting seat installed inside the device frame. A movable seat is installed inside the lifting seat and moved horizontally. An electric cutting knife is installed at the bottom of the movable seat. Scrapers are rotatably installed on both sides of the lifting seat, and a return torsion spring is connected between the scraper and the lifting seat. The feature is that a limit component is connected between the movable seat and the scraper.

[0009] The limiting component is used to ensure that the scraper remains open and cannot be retracted when it rises after cutting.

[0010] Preferably, the limiting component includes a connecting block that docks with the top of the movable seat, a stop block is installed at one end of the connecting block, and the side wall of the lifting seat is provided with an opening for the stop block to pass through. When the stop block passes through the side opening of the lifting seat, its bottom can contact the rotating block of the docking scraper shaft, and at this time the scraper is in an open state.

[0011] Preferably, the stop block has an inclined surface, which is used to contact the rotating block, and when the scraper is in the open state, the lowest part of the inclined surface contacts the rotating block.

[0012] Preferably, two electric lifting rods are installed on the top of the device frame, the output end of the electric lifting rods is connected to the top of the lifting seat, a row of limiting rods is fixed on the top of the lifting seat, the limiting rods slide through the device frame, and a limiting plate is fixed on the top of the limiting rods.

[0013] Preferably, limit rods are fixed on both sides of the lifting seat. When the scraper is in the open state, the limit rods are in contact with its outer wall, and the scraper cannot rotate at this time.

[0014] Preferably, an electric lead screw is installed on the inner side of the lifting seat, and the electric lead screw is threadedly connected to the moving seat. Two crossbars are also installed on the inner side of the lifting seat, and the crossbars are slidably connected to the moving seat.

[0015] Compared with related technologies, the fabric rolling machine cutting device provided by this utility model has the following beneficial effects:

[0016] This utility model, through the optimized design of the limiting component, keeps the scraper open when it rises after cutting, thus avoiding any impact on the cut fabric. The inclined design allows the scraper to slowly return to its original position, preventing collisions and damage to the torsion spring. Furthermore, the overall structure is compact and simple, making it worthy of widespread use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0020] Figure 4 This is a three-dimensional structural diagram of the limiting component of this utility model.

[0021] The following are the labeling elements in the diagram: 1. Device frame; 11. Device base; 12. Lifting base; 13. Moving base; 14. Electric cutting blade; 15. Scraper; 16. Limiting rod two; 17. Electric lifting rod; 18. Limiting rod one; 19. Limiting plate; 110. Electric lead screw; 111. Crossbar; 2. Limiting assembly; 21. Connecting block; 22. Stop block; 23. Rotating block; 24. Inclined surface. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1-4 This utility model provides a fabric rolling machine cutting device, including a device frame 1, with a device base 11 docked at the bottom of the device frame 1. A lifting seat 12 is vertically mounted inside the device frame 1, and a movable seat 13 is horizontally mounted inside the lifting seat 12. An electric cutting blade 14 is mounted at the bottom of the movable seat 13. Scrapers 15 are rotatably mounted on both sides of the lifting seat 12, and a return torsion spring connects the scraper 15 to the lifting seat 12. The above structure is a conventional design, and its principle will not be elaborated here. Furthermore, prior art has already proposed that the movable seat 1... A limiting component 2 is connected between the 3 and the scraper 15. The limiting component 2 is used to keep the scraper 15 in an open state and prevent it from being retracted when the scraper 15 rises after cutting. The limiting component 2 includes a connecting block 21 that is connected to the top of the movable seat 13. A stop block 22 is installed at one end of the connecting block 21. The side wall of the lifting seat 12 is provided with an opening for the stop block 22 to pass through. When the stop block 22 passes through the side opening of the lifting seat 12, its bottom can contact the top of the rotating block 23 that fixes the rotating shaft of the scraper 15, and at this time the scraper 15 is in an open state.

[0024] Two electric lifting rods 17 are installed on the top of the device frame 1. The output end of the electric lifting rods 17 is connected to the top of the lifting seat 12. An electric lead screw 110 is installed on the inner side of the lifting seat 12. The electric lead screw 110 is threadedly connected to the moving seat 13. Two crossbars 111 are also installed on the inner side of the lifting seat 12. The crossbars 111 are slidably connected to the moving seat 13. The stop block 22 is provided with an inclined surface 24. The inclined surface 24 is used to contact the rotating block 23. When the scraper 15 is in the open state, the lowest part of the inclined surface 24 contacts the rotating block 23.

[0025] With the design of the limiting component 2, during processing, the fabric passes over the surface of the device base 11. At this time, the electric cutting blade 14 is in the initial standby state, and the scraper 15 hangs down naturally under the action of the torsion spring, with its outer edge maintaining a small gap with the surface of the device base 11. When the fabric is conveyed to the preset cutting position, the electric lifting rod 17 is activated, pushing the lifting seat 12 to descend smoothly. As the lifting seat 12 descends, the electric cutting blade 14 installed at the bottom of the moving seat 13 is activated and gradually approaches the fabric. When the lifting seat 12 descends to a certain height, the scraper 15 first contacts the surface of the fabric. Under the reaction force of the fabric and the pressure of the continuous descent of the lifting seat 12, the scraper 15 overcomes the restoring force of the torsion spring and rotates upward around the axis to open (the rotating block 23 rotates downward), straightening the fabric. At this time, the electric cutting blade 14 continues to descend until it contacts the fabric, and the electric lead screw 110 is activated, driving the moving seat 13 to move horizontally along the crossbar 111 (the stop block 22 also moves horizontally). (Moving together with connecting block 21), the electric cutting blade 14 moves horizontally to cut the fabric. The crossbar 111 provides a stable guide for the horizontal movement of the moving seat 13, ensuring the straightness of the moving path of the electric cutting blade 14. After cutting, the stop block 22 protrudes from the opening on the side wall of the lifting seat 12, and the bottom inclined surface 24 is in contact with the rotating block 23 (an elastic pad can be designed on the inclined surface 24). When the lifting seat 12 rises, the scraper 15 needs to be rotated inward to retract, but the rotating block 23 cannot rotate upward, so it can remain stationary and rise in a straight line, avoiding affecting the cut fabric. After rising to the specified height, the moving seat 13 resets, the stop block 22 moves inward, the rotating block 23 loses its limit, and the scraper 15 is reset under the action of the torsion spring. Because of the design of the inclined surface 24, the scraper 15 can be slowly reset when the stop block 22 is retracted, avoiding collision or damage to the torsion spring when it is restored all at once.

[0026] A row of limit rods 18 is fixed to the top of the lifting seat 12. The limit rods 18 slide through the device frame 1. A limit plate 19 is fixed to the top of the limit rods 18. Limit rods 16 are fixed to both sides of the lifting seat 12. When the scraper 15 is in the open state, the limit rods 16 contact its outer wall. At this time, the scraper 15 cannot rotate.

[0027] Furthermore, during the cutting process, the limiting rod 18 makes the descent of the lifting seat 12 more stable, and after it descends to a suitable height, the limiting plate 19 fits against the top surface of the lifting seat 12 for support, avoiding instability caused by the vibration force generated during cutting. At the same time, when the scraper 15 is in the open state, its outer side contacts the limiting rod 16, preventing it from overcoming the torsion spring and rotating upward due to the vibration of cutting, further improving stability.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 fabric rolling machine cutting device, comprising a device frame (1), a device base (11) docked at the bottom of the device frame (1), and a lifting seat (12) installed inside the device frame (1) with lifting height, a movable seat (13) installed inside the lifting seat (12) with horizontal movement, an electric cutting blade (14) installed at the bottom of the movable seat (13), scrapers (15) rotatably installed on both sides of the lifting seat (12), and a return torsion spring connected between the scraper (15) and the lifting seat (12), characterized in that: A limiting component (2) is connected between the movable seat (13) and the scraper (15); The limiting component (2) is used to ensure that the scraper (15) remains open and cannot be retracted when the scraper (15) rises after cutting.

2. The fabric rolling machine cutting device according to claim 1, characterized in that, The limiting component (2) includes a connecting block (21) docked to the top of the movable seat (13). A stop block (22) is installed at one end of the connecting block (21). The side wall of the lifting seat (12) is provided with an opening for the stop block (22) to pass through. When the stop block (22) passes through the side opening of the lifting seat (12), its bottom can contact the rotating block (23) of the rotating shaft of the docking scraper (15), and at this time the scraper (15) is in an open state.

3. The fabric rolling machine cutting device according to claim 2, characterized in that, The stop block (22) is provided with an inclined surface (24), which is used to contact the rotating block (23). When the scraper (15) is in the open state, the lowest part of the inclined surface (24) contacts the rotating block (23).

4. The fabric rolling machine cutting device according to claim 3, characterized in that, Two electric lifting rods (17) are installed on the top of the device frame (1). The output end of the electric lifting rod (17) is connected to the top of the lifting seat (12). A row of limiting rods (18) is fixed on the top of the lifting seat (12). The limiting rods (18) slide through the device frame (1). A limiting plate (19) is fixed on the top of the limiting rods (18).

5. A fabric rolling machine cutting device according to claim 4, characterized in that, Limiting rods (16) are fixed on both sides of the lifting seat (12). When the scraper (15) is in the open state, the limiting rods (16) are in contact with its outer wall, and the scraper (15) cannot rotate at this time.

6. A fabric rolling machine cutting device according to claim 5, characterized in that, An electric lead screw (110) is installed on the inner side of the lifting seat (12). The electric lead screw (110) is threadedly connected to the moving seat (13). Two crossbars (111) are also installed on the inner side of the lifting seat (12). The crossbars (111) are slidably connected to the moving seat (13).

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