Multilayer non-woven fabric cross-cutting machine for convenience of cutter replacement
By introducing auxiliary brackets and adjustment frames into the nonwoven multi-layer cross-cutting machine, and using servo motors to drive the lead screw and lead rod, the cutting blade can be easily installed. This solves the problems of time-consuming and laborious blade replacement and safety hazards in conventional cross-cutting machines, and improves operational safety and efficiency.
Patent Information
- Application Number
- PCT/CN2024/108669
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-12
- Filing Date
- 2024-07-31
- Publication Date
- 2026-01-15
AI Technical Summary
Conventional nonwoven multi-layer cross-cutting machines are time-consuming and laborious to change blades, and pose safety hazards, as they can easily damage the blade edge.
A structure including a cross-cutting blade assembly, an auxiliary bracket, an adjustment bracket, and a servo motor was designed. The servo motor drives the lead screw and lead rod to achieve vertical lifting and translation of the blade body, which facilitates docking and installation with the fixed frame. The position of the blade can be adjusted by the adjustment bracket to ensure safe and convenient installation.
It improves the safety and efficiency of blade replacement, avoids safety accidents and blade damage during manual operation, and ensures cutting effect and ease of operation.
Smart Images

Figure CN2024108669_15012026_PF_FP_ABST
Abstract
Description
A nonwoven multi-layer cross-cutting machine with easy-to-change cutter blades Technical Field
[0001] This utility model relates to the field of nonwoven fabric cutting technology, specifically a nonwoven fabric multi-layer cross-cutting machine that facilitates the replacement of cutting blades. Background Technology
[0002] Nonwoven fabric, also known as non-woven cloth or non-woven textile, is a type of fabric that does not require spinning or weaving. It is not made through traditional spinning and weaving processes, but rather by directly bonding fibers together using physical methods. The production process of nonwoven fabric involves forming fibers into a web through airflow or mechanical means, then reinforcing it through hydroentangling, needle punching, or thermal rolling, and finally finishing to form a non-woven fabric. This type of fabric is characterized by its moisture resistance, breathability, flexibility, lightweight, non-flammability, easy decomposition, non-toxicity, non-irritating properties, rich colors, low price, and recyclability. Nonwoven fabric can be made from chemical fibers or plant fibers, and depending on different uses and needs, it can be applied in various fields such as agriculture, medical and health care, clothing, and home decoration.
[0003] Nonwoven fabric cross-cutting machines are used in the production and processing of nonwoven fabrics. They are instruments used to cut nonwoven fabrics in the cross direction.
[0004] When changing blades on a conventional nonwoven multi-layer cross-cutting machine, the operator usually disassembles and reassembles the blades manually. However, due to the structure, size, weight, and other factors of the blades themselves, the disassembly and reassembly process is relatively time-consuming and labor-intensive. It is also prone to safety accidents that could injure the operator and damage the blade itself.
[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a nonwoven multi-layer cross-cutting machine that is easy to replace the cutter.
[0006] Utility Model Content
[0007] The purpose of this invention is to provide a nonwoven fabric multilayer cross-cutting machine that facilitates the replacement of the cutter blade, so as to solve the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a non-woven fabric multi-layer cross-cutting machine that facilitates cutter replacement, comprising a cross-cutting blade assembly and an auxiliary bracket. The auxiliary bracket is mounted directly below the cross-cutting blade assembly, and adjustment brackets are connected to both the left and right sides of the cross-cutting blade assembly. A traction bracket is connected to the side of the adjustment bracket away from the cross-cutting blade assembly. The auxiliary bracket includes a blade holder, a support bracket, a lead screw, a servo motor, and a guide bracket. Support brackets are installed on both sides of the bottom of the blade holder, and a lead screw passes through the support bracket on one side of the blade holder. A servo motor is mounted at the bottom end of the lead screw via a coupling. A guide bracket is vertically passed through one side of the support bracket on the other side of the blade holder.
[0009] Furthermore, the cross-cutting blade assembly includes a fixed frame, adjusting posts, a cutter body, and fixing bolts. Adjusting posts are installed at both ends of the fixed frame, and the cutter body is installed at the bottom of the fixed frame. Fixing bolts are horizontally inserted between the left and right ends of the cutter body and the fixed frame.
[0010] Furthermore, the adjusting pile and the fixed frame are welded together, and the cutter body is inserted into the bottom inner side of the fixed frame, and the fixing bolts are threadedly connected to the fixed frame and the cutter body respectively.
[0011] Furthermore, the support bracket on one side of the bottom of the tool holder is threadedly connected to the lead screw, and the support bracket on the other side of the bottom of the tool holder is slidably connected to the guide frame.
[0012] Furthermore, the adjustment frame includes a stabilizing frame, a guide slider, a drive motor, and a lead screw. The guide slider is installed on one side of the stabilizing frame, and the drive motor is installed on the upper end of the side of the stabilizing frame away from the guide slider. The lead screw is installed at the bottom power output end of the drive motor through a coupling.
[0013] Furthermore, one side of the adjusting pile is slidably connected to the stabilizing frame, and the middle part of the adjusting pile is threadedly connected to the lead screw.
[0014] Furthermore, the traction frame includes a cross-cutting frame, a stamping cylinder, a base, a fixed bracket, and a guide column. The bottom two sides of the cross-cutting frame are vertically mounted with stamping cylinders, and the bottom of the stamping cylinder is horizontally mounted with a base. The left and right sides of the base are vertically mounted with fixed brackets, and the side of the fixed bracket closest to the stamping cylinder is vertically mounted with a guide column.
[0015] Furthermore, the guide slider and the guide column are slidably connected, and the top of the stamping cylinder is fixedly connected to the bottom of the stabilizer.
[0016] This utility model provides a non-woven fabric multi-layer cross-cutting machine with easy-to-change cutter blades, which has the following beneficial effects:
[0017] 1. This utility model, by installing an auxiliary bracket directly below the cutter assembly, allows for easy installation of the cutter body. The cutter body is placed horizontally in the center of the cutter holder, and then driven by a servo motor, the connected lead screw rotates vertically. This causes the cutter holder, connected to the bracket, along with the internal cutter body, to be structurally lifted vertically, aligning with the upper fixing frame. This allows the operator to install the cutter body into the fixing frame. This structure minimizes the risk of accidents caused by the cutter's structure and quality during assembly and disassembly. Furthermore, it facilitates quick and easy connection between the fixing frame and the cutter body, saving time and effort. This provides effective safety protection while improving work efficiency and preventing structural collisions during installation that could damage the blade and affect cutting processes.
[0018] 2. This utility model features symmetrically installed adjusting frames on both sides of the auxiliary bracket. When the drive motor at the upper end of the stabilizing frame is started, it can drive the connected lead screw to rotate vertically, thereby driving the entire cutter assembly connected to it via the adjusting pile to move vertically up and down. Using this structure, on the one hand, the relative distance between the cutter body and the cross-cutting frame can be adjusted flexibly and stably, ensuring the cutting effect of the non-woven fabric passing through. On the other hand, this structure also assists operators in disassembling and adjusting the cutter body, thereby adjusting the relative distance between the cutter assembly and the auxiliary bracket. This ensures accurate and convenient installation while assisting operators in lifting the cutter body, thus saving time and effort and allowing for faster connection and fixation between the cutter body and the fixing frame. Attached Figure Description
[0019] Figure 1 is a side view of the main body structure of a nonwoven multilayer cross-cutting machine of the present invention, which is easy to replace the cutter.
[0020] Figure 2 is a schematic diagram of the cutter assembly structure of a nonwoven multilayer cross-cutting machine with easy cutter replacement according to the present invention.
[0021] Figure 3 is a three-dimensional structural diagram of the auxiliary bracket of a nonwoven multi-layer cross-cutting machine that facilitates the replacement of the cutter according to this utility model.
[0022] Figure 4 is a three-dimensional structural diagram of the adjustment frame of a nonwoven multilayer cross-cutting machine that facilitates the replacement of the cutter according to this utility model.
[0023] In the diagram: 1. Cutting blade assembly; 101. Fixing frame; 102. Adjusting post; 103. Cutting blade body; 104. Fixing bolt; 2. Auxiliary bracket; 201. Blade holder; 202. Support frame; 203. Lead screw; 204. Servo motor; 205. Guide frame; 3. Adjusting frame; 301. Stabilizing frame; 302. Guide slider; 303. Drive motor; 304. Lead screw; 4. Traction frame; 401. Cross-cutting frame; 402. Stamping cylinder; 403. Base; 404. Fixing bracket; 405. Guide column. Detailed Implementation
[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0025] As shown in Figures 1 to 4, a nonwoven multi-layer cross-cutting machine with easy-to-change cutters includes a cross-cutting blade assembly 1 and an auxiliary bracket 2. The auxiliary bracket 2 is mounted directly below the cross-cutting blade assembly 1, and adjustment brackets 3 are connected to both the left and right sides of the cross-cutting blade assembly 1. A traction bracket 4 is connected to the side of the adjustment bracket 3 away from the cross-cutting blade assembly 1. The auxiliary bracket 2 includes a blade holder 201, a support bracket 202, a lead screw 203, a servo motor 204, and a guide bracket 205. Support brackets 202 are installed on both sides of the bottom of the blade holder 201, and the lead screw 203 passes through one side of the support bracket 202 of the blade holder 201. The servo motor 204 is mounted on the bottom end of the lead screw 203 via a coupling. The other side of the support bracket 202 of the blade holder 201 is vertically connected to one side of the support bracket 202. The tool holder 201 is equipped with a guide frame 205. The support frame 202 on one side of the bottom of the tool holder 201 is threadedly connected to the lead screw 203, and the support frame 202 on the other side of the bottom of the tool holder 201 is slidably connected to the guide frame 205. When it is necessary to install the cutter body 103, the cutter body 103 is simply placed horizontally in the center of the inside of the tool holder 201. Then, driven by the servo motor 204, the lead screw 203 connected to it is rotated vertically, so that the tool holder 201 connected to it by the support frame 202, together with the cutter body 103 inside, is structurally lifted in the vertical direction, so as to be aligned with the fixed frame 101 above, until the operator can install the cutter body 103 inside the fixed frame 101.
[0026] As shown in Figures 1 to 4, the cross-cutting blade assembly 1 includes a fixed frame 101, adjusting posts 102, a cutter body 103, and fixing bolts 104. Adjusting posts 102 are installed at both ends of the fixed frame 101, and the cutter body 103 is installed at the bottom of the fixed frame 101. Fixing bolts 104 are horizontally inserted between the left and right ends of the cutter body 103 and the fixed frame 101. The adjusting posts 102 are welded to the fixed frame 101, and the cutter body 103 is inserted into the bottom of the fixed frame 101. On the side, the fixing bolts 104 are threadedly connected to the fixing frame 101 and the cutter body 103 respectively. The adjusting frame 3 includes a stabilizing frame 301, a guide slider 302, a drive motor 303 and a lead screw 304. The guide slider 302 is installed on one side of the stabilizing frame 301, and the drive motor 303 is installed on the upper end of the side of the stabilizing frame 301 away from the guide slider 302. The lead screw 304 is installed at the bottom power output end of the drive motor 303 through a coupling. One side of the adjusting pile 102 is connected to the stabilizing frame. The components 301 are slidably connected, and the middle part of the adjusting pile 102 is threadedly connected to the lead screw 304. The traction frame 4 includes a cross-cutting frame 401, a stamping cylinder 402, a base 403, a fixed bracket 404, and a guide column 405. The stamping cylinder 402 is vertically installed on both sides of the bottom of the cross-cutting frame 401, and the base 403 is horizontally installed on the bottom of the stamping cylinder 402. The fixed bracket 404 is vertically installed on the left and right sides of the base 403, and the fixed bracket 404 is close to the stamping cylinder 405. A guide post 405 is vertically installed on one side of the auxiliary bracket 2. The guide slider 302 is slidably connected to the guide post 405. The top of the stamping cylinder 402 is fixedly connected to the bottom of the stabilizer 301. Adjustment frames 3 are symmetrically installed on both sides of the auxiliary bracket 2. When the drive motor 303 at the upper end of the stabilizer 301 is started, it can drive the lead screw 304 connected to it to rotate vertically, thereby driving the entire cutter group 1 connected to it by the adjustment pile 102 to move up and down in the vertical direction.
[0027] In summary, as shown in Figures 1 to 4, when using this non-woven multi-layer cross-cutting machine that facilitates cutter replacement, firstly, when it is necessary to install the cutter body 103, the cutter body 103 is placed horizontally in the middle of the inside of the cutter holder 201. Then, the servo motor 204 on one side is started. The servo motor 204 drives the lead screw 203 connected to its power output end to rotate axially in the vertical direction, so that the cutter holder 201, in which the cutter body 103 is placed in the center, is simultaneously lifted vertically upward along the surface of the lead screw 203 and the guide frame 205 by the support frame 202.
[0028] At the same time, the drive motor 303 at the upper end of the stabilizer 301 is started. The drive motor 303 drives the lead screw 304 connected to its power output end to rotate axially in the vertical direction, thereby driving the fixed frame 101 connected to it by the adjusting pile 102 to move vertically downward along the surface of the lead screw 304 until the top of the cutter body 103 is finally inserted into the bottom side of the fixed frame 101 from bottom to top. Finally, the fixing bolt 104 is simply screwed horizontally into the fixed frame 101 and the cutter body 103 to complete the installation of the cutter body 103.
[0029] Then, the cutting assembly 1 is adjusted to a suitable position through the structural operation of the adjusting frame 3. When the non-woven fabric passes between the cross-cutting frame 401 and the cutting body 103, the operation of the stamping cylinder 402 will drive the adjusting frame 3 and the cutting assembly 1 connected to it to move back and forth vertically. During the movement, the guide slider 302 on one side of the stabilizing frame 301 will slide along the surface of the guide column 405 on one side of the fixed bracket 404 to ensure the stability of the movement and to perform up and down cutting processing on the non-woven fabric.
[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A nonwoven multilayer cross-cutting machine with easy-to-change cutters, comprising a cross-cutting blade assembly (1) and an auxiliary bracket (2), characterized in that: An auxiliary bracket (2) is mounted directly below the cross-cutting blade assembly (1), and adjustment brackets (3) are connected to both the left and right sides of the cross-cutting blade assembly (1). A traction bracket (4) is connected to the side of the adjustment bracket (3) away from the cross-cutting blade assembly (1). The auxiliary bracket (2) includes a blade holder (201), a support bracket (202), a lead screw (203), a servo motor (204), and a guide bracket (205). Support brackets (202) are installed on both sides of the bottom of the blade holder (201), and a lead screw (203) passes through the support bracket (202) on one side of the blade holder (201). A servo motor (204) is installed at the bottom end of the lead screw (203) through a coupling. A guide bracket (205) passes vertically through one side of the support bracket (202) on the other side of the blade holder (201).
2. The nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 1, characterized in that, The cross-cutting blade assembly (1) includes a fixed frame (101), an adjusting post (102), a cutter body (103), and fixing bolts (104). The adjusting post (102) is installed at both ends of the fixed frame (101), and the cutter body (103) is installed at the bottom of the fixed frame (101). Fixing bolts (104) are horizontally inserted between the left and right ends of the cutter body (103) and the fixed frame (101).
3. A nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 2, characterized in that, The adjusting pile (102) is welded to the fixed frame (101), and the cutter body (103) is inserted into the bottom inner side of the fixed frame (101). The fixing bolt (104) is threadedly connected to the fixed frame (101) and the cutter body (103) respectively.
4. A nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 1, characterized in that, The support bracket (202) on one side of the bottom of the tool holder (201) is threadedly connected to the lead screw (203), and the support bracket (202) on the other side of the bottom of the tool holder (201) is slidably connected to the guide frame (205).
5. A nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 2, characterized in that, The adjustment frame (3) includes a stabilizer (301), a guide slider (302), a drive motor (303), and a lead screw (304). The guide slider (302) is installed on one side of the stabilizer (301), and the drive motor (303) is installed on the upper end of the side of the stabilizer (301) away from the guide slider (302). The lead screw (304) is installed at the bottom power output end of the drive motor (303) through a coupling.
6. A nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 5, characterized in that, One side of the adjusting pile (102) is slidably connected to the stabilizing frame (301), and the middle part of the adjusting pile (102) is threadedly connected to the lead screw (304).
7. A nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 6, characterized in that, The traction frame (4) includes a cross-cutting frame (401), a stamping cylinder (402), a base (403), a fixed bracket (404), and a guide column (405). The bottom sides of the cross-cutting frame (401) are vertically mounted with stamping cylinders (402), and the bottom of the stamping cylinders (402) is horizontally mounted with a base (403). The left and right sides of the base (403) are vertically mounted with fixed brackets (404), and the side of the fixed bracket (404) closest to the stamping cylinders (402) is vertically mounted with a guide column (405).
8. A nonwoven fabric multi-layer cross-cutting machine with easy-to-change cutter according to claim 7, characterized in that, The guide slider (302) and the guide post (405) are slidably connected, and the top of the stamping cylinder (402) is fixedly connected to the bottom of the stabilizer (301).
Citation Information
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