A cutting device for a 45° cutting machine

Abstract

The present application relates to a kind of cutting machine cutting device, comprising: cutting knife shaft, by at least two knife shaft support rotation setting on cutting machine frame, and the axial direction of cutting knife shaft is parallel with the driving direction of cutting machine;Cutting assembly, including cutting knife fixed seat and cutting knife installed on cutting knife fixed seat, cutting knife fixed seat is movably sleeved on cutting knife shaft, and cutting width is set by adjusting the position of cutting knife fixed seat on cutting knife shaft;Hand wheel, fixedly set on the end of cutting knife shaft, for manually driving cutting knife shaft rotation, to drive cutting knife cut into or leave curtain;The plane of cutting knife is perpendicular to the plane of curtain, and the device realizes passive cutting using the tension in the process of curtain transmission.Compared with prior art, the present application improves production efficiency, reduces labor intensity;Improve semi-product size precision, facilitate production control;Enhance equipment adaptability and process stability;Simple and reliable structure, ensure cutting accuracy;Guarantee production continuity.

Description

Technical Field

[0001] This invention relates to the field of nylon fabric cutting machine technology, and in particular to a cutting device for a vertical 45° cutting machine. Background Technology

[0002] In the tire manufacturing process of tire manufacturers, the production of tire semi-finished products, such as nylon fabric, is particularly important, as its production quality and continuity directly affect the quality and efficiency of the finished tires.

[0003] The nylon fabric cutting line is a production line for producing nylon overlay fabric for tire semi-finished products. The production process involves a main machine cutting large rolls of nylon cord fabric to produce nylon fabric of varying widths. These rolls are then cut using a 45-degree cutting system to meet process requirements and the appropriate dimensions for the finished tire body. After cutting, manual operation is used to manually cut the fabric to length for final shaping. The daily output of nylon overlay fabric on the 45-degree cutting machine production line is approximately 3000 meters. The manual cutting and splicing of leftover materials involves numerous movements, resulting in inconsistent quality of semi-finished products. After reaching the forming machine, the semi-finished products require secondary cutting to accommodate minor dimensional variations in other components. Therefore, the operational stability of the vertical cutting system directly affects the continuity of nylon cord fabric production, impacting the overall production efficiency and output of the plant.

[0004] There are two main reasons for the high scrap rate, insufficient precision, and low output of nylon fabric semi-finished products: First, the production of nylon fabric semi-finished products still requires a large amount of manual labor. Due to equipment limitations, manual adjustments are limited, and almost all specifications still require manual cutting after machine cutting, resulting in output being limited by the slow increase in manual labor. Second, manual fixed-length cutting varies depending on the operator's situation at the time, leading to significant variations in the length and dimensions of semi-finished products, which makes production control difficult. The purpose of this equipment modification by adding cutting blades is to solve the problem of operational stability in the vertical cutting process. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology by providing a 45° vertical cutting machine slitting device, which improves production efficiency, reduces labor intensity, improves the dimensional accuracy of semi-finished products, facilitates production control, enhances equipment adaptability and process stability, has a simple and reliable structure, ensures cutting accuracy, and guarantees production continuity.

[0006] The objective of this invention can be achieved through the following technical solutions: This invention designs a cutting device adjustment assembly based on the overall frame structure of a draping machine. This assembly is installed on the third drive roller truss, parallel to the third drive roller in the transmission direction. The device is a purely mechanical structure, determining the cutting length of the fabric by adjusting the position of the cutter holder on the cutting blade shaft. Before the 45-degree cutter cuts the fabric, a fixed-length cut is performed. The nylon fabric after subsequent cutting can be directly transferred to the next process, with the remaining edge material left for manual splicing by on-site workers. A cutting blade device is added to the existing draping machine frame, eliminating the need for motor-driven cutting. The cutter plane is perpendicular to the fabric surface and parallel to the fabric transmission direction, so that the fabric is cut in two by the cutter as it is conveyed forward under tension. The fabric width can be arbitrarily set by adjusting the position of the cutter holder on the blade shaft. After the cutting device is positioned, the cutter holder screws are tightened to secure the cutter. The handwheel on the blade shaft support rotates, causing the blade to contact the fabric for cutting or immediately stop cutting. The purely mechanical structure ensures the stability of its cutting blade, preventing errors caused by motor-controlled movement and guaranteeing a cutting accuracy of ±1mm.

[0007] This invention provides a slitting device for a 45° vertical cutting machine, comprising: The cutting blade shaft is rotatably mounted on the frame of the vertical cutting machine via at least two blade shaft supports, and the axial direction of the cutting blade shaft is parallel to the transmission direction of the vertical cutting machine. A cutting blade assembly includes a cutting blade holder and a cutting blade mounted on the cutting blade holder. The cutting blade holder is movably mounted on the cutting blade shaft. The cutting width is set by adjusting the position of the cutting blade holder on the cutting blade shaft. A handwheel is fixedly installed at the end of the cutting blade shaft and is used to manually drive the cutting blade shaft to rotate so that the cutting blade can cut into or leave the curtain. In this device, the cutting blade plane is perpendicular to the curtain plane, and the device utilizes the tension of the curtain during the transmission process to achieve passive cutting.

[0008] Furthermore, the cutting blade assembly also includes a cutting blade fixing plate and a cutting blade positioning sleeve; The cutting blade is pressed and fixed to the cutting blade fixing base by the cutting blade fixing plate, and the cutting blade positioning sleeve is sleeved on the cutting blade shaft, and at the same time, the cutting blade positioning sleeve is sleeved on the cutting blade fixing base.

[0009] Furthermore, it also includes a vertical cutting knife holder pin plate, which is set on the cutting knife shaft. When the cutting knife holder moves to the required cutting width position on the cutting knife shaft, the pin is inserted by aligning the pin hole on the pin plate with the corresponding positioning hole on the cutting knife shaft, thereby locking the relative position of the cutting knife holder and the cutting knife shaft, preventing the cutting knife holder from shifting during operation, and ensuring the stability of the cutting width.

[0010] Furthermore, the vertical cutting knife holder pin plate is provided with a pin hole. When the cutting knife fixing seat moves to a predetermined position on the cutting knife shaft, the position of the cutting knife fixing seat is locked by inserting the pin into the pin hole and the corresponding positioning hole on the cutting knife shaft.

[0011] Furthermore, the cutting blade shaft is rotatably supported on the blade shaft support by bearings.

[0012] Furthermore, the bearing is a UCPA206 bearing.

[0013] Furthermore, the cutting blade shaft is mounted on the third drive roller truss of the vertical cutting machine.

[0014] Furthermore, the cutter fixing seat is locked onto the cutting blade shaft by fastening screws.

[0015] Furthermore, the handwheel and the end of the cutting blade shaft are fixedly connected by a key or a set screw.

[0016] Furthermore, the cutting blade positioning sleeve is fitted into the mounting hole of the cutting blade fixing seat, and the inner diameter of the mounting hole is adapted to the outer diameter of the cutting blade shaft, so as to realize the radial positioning and displacement of the cutting blade fixing seat on the cutting blade shaft.

[0017] The cutting device is a purely mechanical structure and does not include a motor drive unit. When cutting nylon fabric, the cutting length accuracy error is controlled within ±1mm.

[0018] Compared with the prior art, the present invention has the following advantages: (1) Improve production efficiency and reduce labor intensity. Solve the problems of inconvenient operation and high labor intensity of the existing "45° vertical cutting machine" (equipment number: S-201306029). After the modification, there is no need to manually fix the length and tear the semi-finished products after cutting, thereby improving the overall production efficiency of the vertical cutting process.

[0019] (2) Improve the dimensional accuracy of semi-finished products and facilitate production control. By automatically controlling the length of semi-finished products through mechanical devices, the randomness and uncertainty of manual operation are reduced. This effectively solves the problem that "the length of semi-finished products varies greatly due to different operator conditions, making production control difficult", thereby improving the consistency of product quality.

[0020] (3) Improve equipment adaptability and process stability. This device can adapt to the fixed-length cutting requirements of nylon fabric semi-finished products of different specifications by mechanically adjusting the position of the cutting blade. This adaptability modification helps to reduce waste and improve the process stability of semi-finished products and the stable operation of the equipment.

[0021] (4) The structure is simple and reliable, ensuring cutting accuracy. The device is a "purely mechanical structure" and does not rely on motor drive. It uses the transmission tension of the fabric itself and the adjustable cutting blade for cutting, avoiding errors that may be caused by motor control. The instruction manual clearly states that this design "guarantees a cutting accuracy of ±1mm".

[0022] (5) Ensuring production continuity. The operational stability of the vertical cutting system directly affects the production continuity of nylon cord fabric and the overall plant efficiency. This device improves the automation and stability of this process, thereby reducing waste in the vertical cutting process and ensuring continuous operation of the production line, thus supporting the improvement of overall production output and efficiency. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of the slitting device of a 45° vertical cutting machine; Figure 2 A sectional view of the cutting tool positioning sleeve; Figure 3 Top view of the cutting tool positioning sleeve; Figure 4 A front view of the cutting tool positioning sleeve; Figure 5 Sectional view of the cutter holder Figure 1 ; Figure 6 Sectional view of the cutter holder Figure 2 ; Figure 7 A front view of the sheet being secured to the cutting blade; Figure 8 Side view of the pressure plate securing the cutter; Figure 9 This is a schematic diagram of the cutting blade shaft. Figure 10 This is a front view of the tool shaft support; Figure 11 This is a top view of the tool shaft support; Figure 12 A schematic diagram of the structure of the vertical cutting tool holder pin plate; Figure 13 This is a sectional view of the handwheel; Figure 14 This is a front view of the handwheel.

[0024] Attached reference numerals: 1-Cutter fixing seat; 2-Cutter fixing pressure plate; 3-Cutter positioning sleeve; 4-Separating cutter shaft; 5-Cutter shaft support; 6-Vertical cutter holder pin plate; 7-Handwheel. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0026] Example 1 This embodiment provides a cutting device for a vertical 45° cutting machine, such as... Figures 1 to 14 As shown, it includes: The cutting blade shaft 4 is rotatably mounted on the vertical cutting machine frame via at least two blade shaft supports 5, and the axial direction of the cutting blade shaft 4 is parallel to the transmission direction of the vertical cutting machine. The cutting blade assembly includes a cutting blade holder 1 and a cutting blade mounted on the cutting blade holder 1. The cutting blade holder 1 is movably mounted on the cutting blade shaft 4. The cutting width is set by adjusting the position of the cutting blade holder 1 on the cutting blade shaft 4. The handwheel 7 is fixedly installed at the end of the cutting blade shaft 4 and is used to manually drive the cutting blade shaft 4 to rotate so that the cutting blade can cut into or leave the curtain. In this device, the cutting blade plane is perpendicular to the curtain plane, and the device utilizes the tension of the curtain during the transmission process to achieve passive cutting.

[0027] Example 2 This embodiment provides a cutting device for a vertical 45° cutting machine, such as... Figures 1 to 14 As shown, it includes: The cutting blade shaft 4 is rotatably mounted on the vertical cutting machine frame via at least two blade shaft supports 5, and the axial direction of the cutting blade shaft 4 is parallel to the transmission direction of the vertical cutting machine. The cutting blade assembly includes a cutting blade holder 1 and a cutting blade mounted on the cutting blade holder 1. The cutting blade holder 1 is movably mounted on the cutting blade shaft 4. The cutting width is set by adjusting the position of the cutting blade holder 1 on the cutting blade shaft 4. The handwheel 7 is fixedly installed at the end of the cutting blade shaft 4 and is used to manually drive the cutting blade shaft 4 to rotate so that the cutting blade can cut into or leave the curtain. In this device, the cutting blade plane is perpendicular to the curtain plane, and the device utilizes the tension of the curtain during the transmission process to achieve passive cutting.

[0028] In a specific embodiment, the cutting blade assembly further includes a cutting blade fixing plate 2 and a cutting blade positioning sleeve 3; The cutting blade is pressed and fixed to the cutting blade fixing seat 1 by the cutting blade fixing plate 2, and the cutting blade positioning sleeve 3 is sleeved on the cutting blade shaft 4, and at the same time, the cutting blade positioning sleeve 3 is sleeved on the cutting blade fixing seat 1.

[0029] In a specific embodiment, a vertical cutting knife holder pin plate 6 is also included. The vertical cutting knife holder pin plate 6 is disposed on the cutting knife shaft 4. When the cutting knife fixing seat 1 moves to the required cutting width position on the cutting knife shaft 4, the pin is inserted by aligning the pin hole on the pin plate with the corresponding positioning hole on the cutting knife shaft 4, thereby locking the relative position of the cutting knife fixing seat 1 and the cutting knife shaft 4, preventing the cutting knife fixing seat 1 from shifting during operation, and ensuring the stability of the cutting width.

[0030] In a specific embodiment, the vertical cutting knife holder pin plate 6 is provided with a pin hole. When the cutting knife fixing seat 1 moves to a predetermined position on the cutting knife shaft 4, the position of the cutting knife fixing seat 1 is locked by inserting the pin into the pin hole and the corresponding positioning hole on the cutting knife shaft 4.

[0031] In a specific embodiment, the cutting blade shaft 4 is rotatably supported on the blade shaft support 5 by a bearing.

[0032] In a specific embodiment, the bearing is a UCPA206 bearing.

[0033] In a specific embodiment, the cutting blade shaft 4 is mounted on the third drive roller truss of the vertical cutting machine.

[0034] In a specific embodiment, the cutting blade fixing seat 1 is locked onto the cutting blade shaft 4 by fastening screws.

[0035] In a specific embodiment, the handwheel 7 and the end of the cutting blade shaft 4 are fixedly connected by a key or a set screw.

[0036] In a specific embodiment, the cutting blade positioning sleeve 3 is fitted into the mounting hole of the cutting blade fixing seat 1, and the inner diameter of the mounting hole is adapted to the outer diameter of the cutting blade shaft 4, so as to realize the radial positioning and displacement of the cutting blade fixing seat 1 on the cutting blade shaft 4.

[0037] The cutting device is a purely mechanical structure and does not include a motor drive unit. When cutting nylon fabric, the cutting length accuracy error is controlled within ±1mm.

[0038] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.

[0039] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A slitting device for a vertical 45° cutting machine, characterized in that, include: The cutting blade shaft (4) is rotatably mounted on the frame of the vertical cutting machine via at least two blade shaft supports (5), and the axial direction of the cutting blade shaft (4) is parallel to the transmission direction of the vertical cutting machine. The cutting knife assembly includes a cutting knife holder (1) and a cutting knife mounted on the cutting knife holder (1). The cutting knife holder (1) is movably mounted on the cutting knife shaft (4). The cutting width is set by adjusting the position of the cutting knife holder (1) on the cutting knife shaft (4). The handwheel (7) is fixedly installed at the end of the cutting blade shaft (4) and is used to manually drive the cutting blade shaft (4) to rotate so as to drive the cutting blade to cut into or leave the curtain. In this device, the cutting blade plane is perpendicular to the curtain plane, and the device utilizes the tension of the curtain during the transmission process to achieve passive cutting.

2. The slitting device for a 45° vertical cutting machine according to claim 1, characterized in that, The cutting blade assembly also includes a cutting blade fixing plate (2) and a cutting blade positioning sleeve (3). The cutting blade is pressed and fixed on the cutting blade fixing seat (1) by the cutting blade fixing plate (2), and the cutting blade positioning sleeve (3) is sleeved on the cutting blade shaft (4), and at the same time, the cutting blade positioning sleeve (3) is sleeved on the cutting blade fixing seat (1).

3. The slitting device for a 45° vertical cutting machine according to claim 1, characterized in that, It also includes a vertical cutting knife holder pin plate (6), which is disposed on the cutting knife shaft 4.

4. The slitting device for a 45° vertical cutting machine according to claim 3, characterized in that, The vertical cutting knife holder pin plate (6) is provided with a pin hole. When the cutting knife fixing seat (1) moves to a predetermined position on the cutting knife shaft (4), the position of the cutting knife fixing seat (1) is locked by inserting the pin into the pin hole and the corresponding positioning hole on the cutting knife shaft (4).

5. The slitting device for a 45° vertical cutting machine according to claim 1, characterized in that, The cutting blade shaft (4) is rotatably supported on the blade shaft support (5) by bearings.

6. The slitting device for a 45° vertical cutting machine according to claim 5, characterized in that, The bearing is a UCPA206 bearing.

7. The slitting device for a 45° vertical cutting machine according to claim 1, characterized in that, The cutting blade shaft (4) is mounted on the third drive roller truss of the vertical cutting machine.

8. The slitting device for a 45° vertical cutting machine according to claim 1, characterized in that, The cutter fixing seat (1) is locked onto the cutting blade shaft (4) by fastening screws.

9. A slitting device for a vertical cutting 45° cutting machine according to claim 1, characterized in that, The handwheel (7) and the end of the cutting blade shaft (4) are fixedly connected by a key or a set screw.

10. A slitting device for a vertical cutting 45° cutting machine according to claim 2, characterized in that, The cutting blade positioning sleeve (3) is fitted into the mounting hole of the cutting blade fixing seat (1). The inner diameter of the mounting hole is adapted to the outer diameter of the cutting blade shaft (4) to realize the radial positioning and displacement of the cutting blade fixing seat (1) on the cutting blade shaft (4).

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