A tooth cutter cutting mechanism of a cutting machine
By using a non-continuous cutting edge toothed blade and pressure roller mechanism on the cutting machine, the problem of yarn falling off at the cut of textile fabrics is solved, achieving efficient and high-quality fabric cutting and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 鄢伟
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-29
AI Technical Summary
The cross-cutting device of existing cutting machines causes yarn to easily fall off at the cut edge of textile fabrics, forming lint and yarn ends, which increases the demand for subsequent overlocking processing and labor costs.
It employs non-continuous cutting edge blades, such as corrugated and serrated blades, combined with a pressure roller mechanism. The blades are raised and lowered by a top cylinder and the pressure rollers are rotated by a servo motor, achieving stable cutting of the fabric and forming irregular cuts, thus reducing yarn shedding and lint generation.
It effectively reduces yarn shedding and lint generation, lowers the need for subsequent overlocking processing, improves cutting efficiency and product quality, and reduces labor costs.
Smart Images
Figure CN224299686U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cutting machine technology, and in particular to a toothed blade cutting mechanism for a cutting machine. Background Technology
[0002] Currently, the cross-cutting devices actually used in the home textile, outdoor products, and packaging industries are all flat blades, resulting in straight cuts. This has many adverse effects. For textile fabrics, the straight cut makes the yarn at the cut edge prone to falling off, easily forming lint and yarn ends, which negatively impacts subsequent processing and product quality. Furthermore, the straight cut makes the yarn at the cut edge prone to unraveling, requiring edge-locking processing in subsequent processing to prevent excessive unraveling, thus increasing labor costs. Utility Model Content
[0003] In order to overcome the problems existing in the prior art, this application provides a toothed blade cutting mechanism for a cutting machine.
[0004] The toothed blade cutting mechanism of the cutting machine provided in this application adopts the following technical solution:
[0005] A cutting mechanism for a cutting machine includes a cutting frame and a cutting mechanism mounted on the cutting frame. The cutting frame is distributed along the width direction of the fabric's forward movement, and the cutting mechanism is slidably mounted on the cutting frame. The cutting mechanism includes an L-shaped bracket and a cutting blade holder mounted on the L-shaped bracket. The cutting blades in the cutting blade holder are discontinuous cutting blades, and the discontinuous cutting blades are driven to rise and fall by a top cylinder. A pressure roller mounting groove corresponding to the cutting blade holder is installed on the bottom of the L-shaped bracket, and a pressure roller corresponding to the discontinuous cutting blade is installed in the pressure roller mounting groove, and the pressure roller is driven by a servo motor.
[0006] By adopting the above technical solution, the cutting frame is arranged along the width direction of the fabric's forward movement. The slidingly installed cutting mechanism can cut along the width of the fabric. When the fabric is conveyed to the cutting station, the top cylinder drives the corrugated toothed blades on the toothed blade holder to clamp with the pressure roller in the pressure roller mounting groove. The servo motor drives the pressure roller in the pressure roller mounting groove to rotate. The corrugated toothed blades can rotate in cooperation with the pressure roller through the friction between them, cutting the fabric pressed between the pressure roller and the corrugated toothed blades, ensuring the stability of the fabric during cutting. The top cylinder drives the discontinuous cutting edge toothed blade in the toothed blade holder to descend. Utilizing the characteristics of its discontinuous cutting edge, it cooperates with the pressure roller to cut the fabric. Compared with the straight cutting of traditional flat blades, the irregular cut formed by the discontinuous cutting edge can effectively reduce yarn shedding, lint, and yarn ends, reduce the risk of yarn unraveling, reduce the need for subsequent overlock processing, thereby reducing labor costs and achieving efficient and high-quality fabric cutting.
[0007] Preferably, the cutting frame includes a mounting frame, which adopts a frame structure that can be fitted onto the fabric conveyor belt, including support rods on both sides and upper and lower rods connecting the support rods.
[0008] By adopting the above technical solution, the cutting frame uses a frame structure, with its two side support rods connected to the upper and lower rods, forming a mounting frame that can be fitted onto the fabric conveyor belt. During operation, the cutting frame is fitted onto the fabric conveyor belt, securing it firmly above the fabric transport path. This special installation method ensures a fixed relative position between the cutting frame and the fabric conveyor belt, allowing the cutting mechanism mounted on the frame to accurately cut the fabric on the conveyor belt, ensuring the stability and accuracy of the cutting work.
[0009] Preferably, the side of the L-shaped bracket is slidably connected to the slide rails distributed laterally on the mounting bracket via a slider, and the L-shaped bracket is driven by a power mechanism.
[0010] Preferably, the power mechanism includes a threaded sleeve at the bottom of the L-shaped bracket and a lead screw distributed along the direction of the L-shaped bracket, wherein the lead screw is driven to rotate by an adjusting motor at its end to cooperate with the threaded sleeve.
[0011] By adopting the above technical solution, the slider on the side of the L-shaped bracket and the transverse slide rail of the mounting frame form a sliding connection structure, providing guidance for the movement of the L-shaped bracket. When the power mechanism is running, the adjusting motor drives the lead screw to rotate. Since the lead screw and the threaded sleeve at the bottom of the L-shaped bracket cooperate with each other, the rotational motion of the lead screw is converted into the linear movement of the threaded sleeve and the L-shaped bracket along the direction of the lead screw, thereby realizing the transverse sliding of the L-shaped bracket on the mounting frame. This allows for precise control of the toothed knife cutting mechanism to cut the fabric in the width direction, adapting to different cutting needs.
[0012] Preferably, the toothed cutter holder is detachably mounted on an L-shaped bracket, and the cutter holder inside the toothed cutter holder is used to install non-continuous cutting edge toothed cutters, wherein the top of the cutter holder is connected to the output end of the cylinder.
[0013] Preferably, the top of the L-shaped bracket has a snap-fit groove, the side of the toothed blade holder is adapted to the snap-fit groove by a snap-fit protrusion, and the snap-fit protrusion is fixed to the top of the L-shaped bracket by a locking bolt.
[0014] By adopting the above technical solution, the connection between the toothed cutter holder and the L-shaped bracket is designed to be detachable. The L-shaped bracket has a snap-fit groove at the top, and the toothed cutter holder has matching snap-fit protrusions on its side. During installation, the snap-fit protrusions are aligned with the snap-fit groove and inserted, initially positioning the toothed cutter holder on the L-shaped bracket. Then, locking bolts are passed through the snap-fit protrusions and fixed to the top of the L-shaped bracket, achieving a stable installation of the toothed cutter holder. When disassembly is required, the locking bolts are unscrewed to detach the toothed cutter holder from the L-shaped bracket. During operation, the discontinuous cutting teeth mounted on the cutter holder inside the toothed cutter holder are driven by a cylinder connected at the top. The cylinder's output end extends and retracts, causing the teeth on the cutter holder to cooperate with the pressure roller to press and cut the fabric. This detachable structure facilitates the maintenance, replacement, and repair of the toothed cutter holder and the teeth.
[0015] Preferably, an inkjet mechanism is installed on the side of the toothed cutter holder closest to the fabric, and a sling sensor for monitoring the cutting position of the fabric is also installed on the feed inlet of the mounting frame.
[0016] By adopting the above technical solution, the marker sensor at the feed inlet of the mounting frame plays a monitoring role, accurately identifying the marks on the fabric and monitoring the cutting position of the fabric in real time. When the fabric is transferred to the preset cutting position, the marker sensor promptly sends a feedback signal. At the same time, the inkjet mechanism on the side of the toothed blade holder closest to the fabric receives the relevant instructions and quickly sprays ink onto the fabric surface to mark the cutting area or specific pattern, providing a clear reference mark for the subsequent cutting of the non-continuous toothed blade, thereby achieving precise cutting and ensuring cutting accuracy and product quality.
[0017] Preferably, the discontinuous cutting edge cutter includes corrugated cutting edge cutters and serrated cutting edge cutters.
[0018] In summary, this application includes at least one of the following beneficial technical effects:
[0019] 1. The non-continuous cutting edge toothed blade used in this application, such as corrugated toothed blade and serrated toothed blade, changes the traditional straight cutting edge. For textile fabrics, this special cutting edge shape can effectively reduce yarn shedding, reduce the generation of lint and yarn ends, thereby improving the convenience of subsequent processing and product quality. In addition, the cutting edge of the non-continuous cutting edge toothed blade is not easy to fall apart, reducing the need for the overlocking process in subsequent processing, thereby reducing labor costs.
[0020] 2. The cutting frame in this application adopts a frame structure that can be fitted onto the fabric conveyor belt, which is convenient for installation and use. The L-shaped bracket is slidably connected to the slide rail through a slider and driven by a power mechanism, which can flexibly adjust the cutting position and improve the flexibility and applicability of cutting. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the fabric feeding side structure of the toothed blade cutting mechanism of a cutting machine;
[0022] Figure 2 This is a schematic diagram of the fabric output side structure of the toothed blade cutting mechanism of a cutting machine.
[0023] Explanation of reference numerals in the attached drawings: 1. Cutting frame; 11. Mounting frame; 111. Support rod; 112. Upper rod body; 113. Lower rod body; 114. Slide rail; 115. Marker sensor; 2. Cutting mechanism; 3. L-shaped bracket; 31. Pressure roller mounting groove; 32. Pressure roller; 33. Servo motor; 34. Slider; 35. Snap-fit groove; 4. Toothed cutter holder; 41. Toothed cutter; 42. Cutter holder; 43. Snap-fit protrusion; 431. Locking bolt; 44. Inkjet mechanism; 5. Power mechanism; 51. Thread sleeve; 52. Lead screw; 53. Adjusting motor. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0025] This application discloses a toothed blade cutting mechanism for a cutting machine.
[0026] Reference Figure 1 and Figure 2 A cutting mechanism for a cutting machine includes a cutting frame 1 and a cutting mechanism 2 mounted on the cutting frame 1. The cutting frame 1 is distributed along the width direction of the fabric's forward movement, and the cutting mechanism 2 is slidably mounted on the cutting frame 1. The cutting mechanism 2 includes an L-shaped bracket 3 and a cutting blade holder 4 mounted on the L-shaped bracket 3. The cutting blades 41 inside the cutting blade holder 4 are corrugated cutting blades 41, and the corrugated cutting blades 41 are driven to rise and fall by a top cylinder. A pressure roller mounting groove 31 corresponding to the cutting blade holder 4 is installed on the bottom of the L-shaped bracket 3. A pressure roller 32 corresponding to the corrugated cutting blade 41 is installed in the pressure roller mounting groove 31, and the pressure roller 32 is driven by a servo motor 33. The cutting frame 1 is arranged along the width direction of the fabric's forward movement. The slidingly installed cutting mechanism 2 can cut along the width of the fabric. When the fabric is conveyed to the cutting station, the top cylinder drives the corrugated toothed blade 41 on the toothed blade holder 4 to clamp with the pressure roller 32 in the pressure roller mounting groove 31. The servo motor 33 drives the pressure roller 32 in the pressure roller mounting groove 31 to rotate. The corrugated toothed blade 41 can rotate with the pressure roller 32 through the friction between them, cutting the fabric pressed between the pressure roller 32 and the corrugated toothed blade 41, ensuring the stability of the fabric during cutting. The top cylinder drives the corrugated toothed blade 41 inside the toothed blade holder 4 to descend. Utilizing the characteristics of its discontinuous cutting edge, it works in conjunction with the pressure roller 32 to cut the fabric. Compared with the straight cutting of traditional flat blades, the irregular cut formed by the discontinuous cutting edge can effectively reduce yarn shedding, lint and yarn ends, reduce the risk of yarn fraying, reduce the need for subsequent overlocking processing, thereby reducing labor costs and achieving efficient and high-quality fabric cutting.
[0027] Reference Figure 1 and Figure 2 The cutting frame 1 includes a mounting frame 11, which is a frame structure that can be fitted onto the fabric conveyor belt. The mounting frame 11 includes support rods 111 on both sides and upper rods 112 and lower rods 113 connecting the support rods 111. The frame structure of the cutting frame 1, with its support rods 111 on both sides connected to the upper rods 112 and lower rods 113, forms the mounting frame 11 that can be fitted onto the fabric conveyor belt. During operation, by fitting the cutting frame 1 onto the fabric conveyor belt, it is securely mounted on the fabric conveying path. This special installation method ensures that the relative position of the cutting frame 1 and the fabric conveyor belt is fixed, allowing the cutting mechanism 2 mounted on the cutting frame 1 to accurately cut the fabric on the conveyor belt, ensuring the stability and accuracy of the cutting work.
[0028] Reference Figure 1 and Figure 2 The side of the L-shaped bracket 3 is slidably connected to the slide rails 114 laterally distributed on the mounting frame 11 via a slider 34. The L-shaped bracket 3 is driven by a power mechanism 5. The power mechanism 5 includes a threaded sleeve 51 at the bottom of the L-shaped bracket 3 and a lead screw 52 distributed along the direction of the L-shaped bracket 3. The lead screw 52 is driven to rotate by an adjusting motor 53 at its end to cooperate with the threaded sleeve 51. The slider 34 on the side of the L-shaped bracket 3 forms a sliding connection structure with the lateral slide rails 114 of the mounting frame 11, providing guidance for the movement of the L-shaped bracket 3. When the power mechanism 5 is running, the adjusting motor 53 drives the lead screw 52 to rotate. Since the lead screw 52 cooperates with the threaded sleeve 51 at the bottom of the L-shaped bracket 3, the rotational motion of the lead screw 52 is converted into linear movement of the threaded sleeve 51 and the L-shaped bracket 3 along the direction of the lead screw 52, thereby realizing the lateral sliding of the L-shaped bracket 3 on the mounting frame 11. This allows for precise control of the cutting mechanism 2 of the toothed blade 41 to cut the fabric in the width direction to adapt to different cutting needs.
[0029] Reference Figure 1 and Figure 2The toothed cutter holder 4 is detachably mounted on the L-shaped bracket 3. The cutter holder 42 inside the toothed cutter holder 4 is used to mount the corrugated toothed cutter 41, with the top of the cutter holder 42 connected to the output end of the cylinder. The top of the L-shaped bracket 3 has a snap-fit groove 35. The side of the toothed cutter holder 4 is fitted with the snap-fit groove 35 via a snap-fit protrusion 43, and the snap-fit protrusion 43 is fixed to the top of the L-shaped bracket 3 by a locking bolt 431. The connection between the toothed cutter holder 4 and the L-shaped bracket 3 is detachable. The top of the L-shaped bracket 3 has a snap-fit groove 35, and the side of the toothed cutter holder 4 has a matching snap-fit protrusion 43. During installation, the snap-fit protrusion 43 is aligned with the snap-fit groove 35 and inserted, initially positioning the toothed cutter holder 4 on the L-shaped bracket 3. Then, the locking bolt 431 is passed through the snap-fit protrusion 43 and fixed to the top of the L-shaped bracket 3, achieving a stable installation of the toothed cutter holder 4. When disassembly is required, the locking bolt 431 is unscrewed to detach the toothed cutter holder 4 from the L-shaped bracket 3. During operation, the corrugated toothed blades 41 installed on the inner blade holder 42 of the toothed blade holder 4 are driven by the cylinder connected to the top. The cylinder output end extends and retracts, causing the toothed blades 41 on the blade holder 42 to cooperate with the pressure roller to press and cut the fabric. This detachable structure facilitates the maintenance, replacement and repair of the toothed blade holder 4 and the toothed blades 41.
[0030] Reference Figure 1 and Figure 2 An inkjet mechanism 44 is installed on the side of the toothed blade holder 4 closest to the fabric, and a marker sensor 115 for monitoring the fabric cutting position is also installed on the feed inlet of the mounting frame 11. The marker sensor 115 at the feed inlet of the mounting frame 11 plays a monitoring role, accurately identifying the marks on the fabric and monitoring the cutting position of the fabric in real time. When the fabric is transferred to the preset cutting position, the marker sensor 115 promptly provides a feedback signal. At the same time, after receiving relevant instructions, the inkjet mechanism 44 on the side of the toothed blade holder 4 closest to the fabric quickly sprays ink onto the fabric surface to mark the cutting area or specific pattern, providing a clear reference mark for the subsequent cutting of the corrugated toothed blade 41, thereby achieving precise cutting and ensuring cutting accuracy and product quality.
[0031] Working principle: During operation, the fabric moves forward along the fabric conveyor belt. The mounting frame 11 is fitted onto the fabric conveyor belt, serving to support and position the entire cutting mechanism 2. The L-shaped bracket 3 is slidably connected to the transversely distributed slide rails 114 on the mounting frame 11 via the side slider 34 and is driven by the power mechanism 5. The lead screw 52 in the power mechanism 5 rotates under the drive of the end adjusting motor 53, cooperating with the thread sleeve 51 at the bottom of the L-shaped bracket 3, thereby driving the L-shaped bracket 3 to cut the fabric along the width direction of the fabric's forward movement. When cutting is required, the top cylinder drives the corrugated toothed blade 41 inside the toothed blade holder 4 to descend and press against the pressure roller 32 in the pressure roller mounting groove 31. Then, the servo motor 33 drives the pressure roller 32 in the pressure roller mounting groove 31 to rotate, and the corrugated toothed blade 41 also rotates. The pressure roller 32 and the corrugated toothed blade 41 press the fabric together and cooperate with the power mechanism 5. When the corrugated toothed blade 41 contacts the fabric and moves, it cuts the fabric using its unique blade shape. The inkjet mechanism 44 installed on the side of the toothed blade holder 4 near the fabric can mark the cutting position before cutting. The gun sensor 115 on the feed port of the mounting frame 11 is used to monitor the cutting position of the fabric to ensure the accuracy of cutting.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A toothed blade cutting mechanism for a cutting machine, characterized in that: Includes a cutting frame (1) and a cutting mechanism (2) mounted on the cutting frame (1); The cutting frame (1) is distributed along the width direction of the fabric's forward direction, and a cutting mechanism (2) is slidably installed on the cutting frame (1). The cutting mechanism (2) includes an L-shaped bracket (3) and a toothed blade holder (4) mounted on the L-shaped bracket (3). The toothed blade (41) inside the toothed blade holder (4) is a non-continuous cutting edge toothed blade (41). The non-continuous cutting edge toothed blade (41) is driven to rise and fall by a top cylinder. The bottom of the L-shaped bracket (3) is equipped with a pressure roller mounting groove (31) corresponding to the toothed blade holder (4). The pressure roller (32) corresponding to the non-continuous cutting edge toothed blade (41) is installed in the pressure roller mounting groove (31). The pressure roller (32) is driven by a servo motor (33).
2. The toothed blade cutting mechanism of a cutting machine according to claim 1, characterized in that: The cutting frame (1) includes a mounting frame (11), which adopts a frame structure that can be fitted onto the fabric conveyor belt, including support rods (111) on both sides and an upper rod body (112) and a lower rod body (113) connecting the support rods (111).
3. The toothed blade cutting mechanism of a cutting machine according to claim 1, characterized in that: The side of the L-shaped bracket (3) is slidably connected to the slide rails (114) distributed laterally on the mounting bracket (11) via a slider (34), and the L-shaped bracket (3) is driven by a power mechanism (5).
4. The toothed blade cutting mechanism of a cutting machine according to claim 3, characterized in that: The power mechanism (5) includes a threaded sleeve (51) at the bottom of the L-shaped bracket (3) and a lead screw (52) distributed along the direction of the L-shaped bracket (3), wherein the lead screw (52) is driven to rotate by an adjustment motor (53) at its end to cooperate with the threaded sleeve (51).
5. The toothed blade cutting mechanism of a cutting machine according to claim 1, characterized in that: The toothed cutter holder (4) is detachably mounted on the L-shaped bracket (3). The cutter holder (42) inside the toothed cutter holder (4) is used to install the non-continuous cutting edge toothed cutter (41), wherein the top of the cutter holder (42) is connected to the output end of the cylinder.
6. The toothed blade cutting mechanism of a cutting machine according to claim 5, characterized in that: The top of the L-shaped bracket (3) is provided with a snap-fit groove (35), and the side of the toothed blade holder (4) is adapted to the snap-fit groove (35) by a snap-fit protrusion (43), and the snap-fit protrusion (43) is fixed to the top of the L-shaped bracket (3) by a locking bolt (431).
7. The toothed blade cutting mechanism of a cutting machine according to claim 1, characterized in that: The toothed cutter holder (4) is equipped with an inkjet mechanism (44) on the side near the fabric, and a sling sensor (115) for monitoring the cutting position of the fabric is also installed on the feed inlet of the mounting frame (11).
8. The toothed blade cutting mechanism of a cutting machine according to claim 1, characterized in that: The discontinuous cutting edge cutter (41) includes corrugated cutter (41) and serrated cutter (41).