Tread ply cutting apparatus

Abstract

The utility model provides a kind of tread fabric cutting device, including rack, cutting assembly, cutting drive assembly, compression assembly and bearing platform.The cutting assembly is provided with transverse moving mechanism and two cutting units arranged symmetrically along transverse direction, each cutting unit is composed of cutting head mounting seat and cutting head mounted in its lower end;Cutting drive assembly is used to drive cutting head to move along vertical direction.Compression assembly includes two compression units fixed between the lower crossbeam of rack, each compression unit includes compression cylinder and its lower end compression head.Bearing platform is installed below rack, located in compression head and cutting head lower side, for supporting the tread fabric to be cut.The device structure is reasonable, cutting precision is high, and it is suitable for flexible fabric material high efficiency, stable processing.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing equipment technology, and in particular to a tire tread cord cutting device. Background Technology

[0002] Tread cord is an important reinforcing material used in tire manufacturing. It is composed of multiple layers of cord and rubber, possessing a certain degree of flexibility and strength. To ensure the dimensional accuracy and edge quality of the tread cord during subsequent molding processes, it needs to be cut with high precision during processing. Existing cord cutting devices mostly adopt a single-sided cutting structure, with a fixed cutting head and the cord moving to the cutting position via a conveyor system. This presents the following problems: First, in existing devices, the cutting head is usually only set on one side. During cutting, the curtain needs to be moved to achieve multi-sided processing, which results in complex structure, difficult control, low cutting efficiency, and problems such as inaccurate curtain positioning and uneven edges.

[0003] Secondly, because the tire tread fabric has a certain degree of elasticity and surface slippage, if the clamping structure is unstable during the cutting process, the material is prone to slippage or displacement, affecting the cutting accuracy. In addition, in some devices, the clamping device and the cutting head are not arranged properly, resulting in uneven force on the fabric, which in turn causes cutting deviation or fabric deformation.

[0004] Furthermore, some cutting devices lack flexibility in their structural design, making it difficult to quickly replace cutting components or adjust the cutting position. This results in high equipment maintenance costs, poor adaptability, and difficulty in meeting the processing needs of various specifications of tire tread fabrics.

[0005] Therefore, there is an urgent need for a cutting device with a reasonable structure, high cutting precision, stable clamping, and suitable for flexible curtain materials, in order to improve the processing quality of curtains and the efficiency of equipment use. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a tire tread fabric cutting device with reasonable structure and high cutting accuracy.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A tire tread fabric cutting device includes a frame, a cutting assembly, a cutting drive assembly, a clamping assembly, and a support platform. The cutting assembly includes a lateral moving mechanism disposed at the lower part of the frame, and two cutting units mounted on the lateral moving mechanism, the two cutting units being symmetrically arranged laterally. Each cutting unit includes a cutting head mounting seat and a cutting head mounted at its lower end. The cutting drive assembly includes a drive mechanism respectively connected to the two cutting head mounting seats, the drive mechanism being used to drive the cutting head to move in a vertical direction. The clamping assembly includes two clamping units disposed between the two cutting units, the clamping units being fixedly mounted on the lower crossbeam of the frame, and including a vertically arranged clamping cylinder and a clamping head at its lower end. The support platform is fixedly mounted below the frame, located below the clamping head and the cutting head, for supporting the tire tread fabric to be cut.

[0008] Furthermore, the lateral movement mechanism includes a guide rail assembly fixedly mounted on the lower crossbeam of the frame, and two slider assemblies that can slide along the guide rail assembly, with the two cutting units respectively fixedly connected to the two slider assemblies.

[0009] Furthermore, each cutting head mounting base is provided with a guide structure extending in the vertical direction, and the drive mechanism maintains a vertical guiding engagement with the cutting head through the guide structure.

[0010] Furthermore, the upper surface of the bearing platform is provided with several evenly distributed friction stripes or anti-slip structures to prevent the tread cord from shifting or slipping during the cutting process.

[0011] Furthermore, each of the two clamping units has an arc-shaped contact surface that fits against the surface of the tire tread cord to achieve stable clamping without damaging the cord structure.

[0012] Furthermore, the cutting head is a modular cutting head with a replaceable blade structure, and the blade is fixed to the cutting head body by a snap or screw connection.

[0013] The aforementioned tire tread fabric cutting device, through the symmetrical layout of dual cutting units, guide rail sliding, vertical guidance, and clamping components, solves the problems of slippage, deviation, and insufficient cutting accuracy that easily occur during tire tread fabric cutting. It achieves efficient and precise cutting of the fabric in a stable state, improving cutting quality and equipment adaptability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the tread fabric cutting device provided by this utility model; Figure 2 This is a front view of the tire tread fabric cutting device provided by this utility model. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] like Figure 1 and Figure 2 As shown, this application provides a tire tread fabric cutting device, including a frame 1, a cutting assembly 2, a cutting drive assembly 3, a pressing assembly 4, and a carrying platform 5.

[0017] Specifically, the cutting assembly 2 includes a lateral moving mechanism 21 disposed at the lower part of the frame 1, and two cutting units 22 mounted on the lateral moving mechanism 21, the two cutting units 22 being symmetrically arranged laterally; each cutting unit 22 includes a cutting head mounting seat 222 and a cutting head 221 mounted at its lower end; the cutting drive assembly 3 includes a drive mechanism respectively connected to the two cutting head mounting seats 222, the drive mechanism being used to drive the cutting head 221 to move in the vertical direction; the clamping assembly 4 includes two clamping units disposed between the two cutting units 22, the clamping units being fixedly mounted on the lower crossbeam of the frame 1, and including a vertically arranged clamping cylinder 41 and a clamping head 42 at its lower end; the carrying platform 5 is fixedly mounted below the frame 1, located below the clamping head 42 and the cutting head 221, and is used to support the tire tread fabric to be cut.

[0018] This embodiment achieves synchronous lateral adjustment of the two cutting units 22 by setting a lateral moving mechanism 21, allowing the cutting head 221 to flexibly adjust its cutting position according to the different widths of the tire cord. The cutting head 221 is installed at the lower end of the cutting head mounting base 222 and achieves vertical lifting and lowering movement through the driving mechanism in the cutting drive assembly 3, thereby performing the cutting operation. To prevent the tire cord from shifting during the cutting process, the pressing cylinder 41 in the pressing assembly 4 drives the pressing head 42 to move downward, effectively pressing the cord and forming a stable cutting environment. The bearing platform 5 provides support for the cord, keeping it flat and ensuring accurate cutting path. The components are compact in structure and rationally arranged, and complete efficient and accurate cord cutting operations through coordinated actions.

[0019] The lateral movement mechanism 21 includes a guide rail assembly fixedly mounted on the lower crossbeam of the frame 1, and two slider assemblies that can slide along the guide rail assembly. Two cutting units 22 are respectively fixedly connected to the two slider assemblies. This guide rail and slider lateral movement structure makes the lateral adjustment of the cutting assembly 2 more flexible and stable, improving the equipment's adaptability to different sizes of fabric. The slider assembly carries the cutting unit 22, enabling convenient installation, disassembly, and fine-tuning of its position, effectively simplifying maintenance and adjustment operations.

[0020] Each cutting head mounting base 222 is provided with a guide structure extending vertically. The drive mechanism maintains a vertical guiding engagement with the cutting head 221 through the guide structure. This embodiment, by providing a guide structure within the cutting head mounting base 222, allows the cutting head 221 to move stably up and down along a predetermined vertical path under the action of the drive mechanism. The guide structure can take the form of a linear guide rail, sliding bearing, guide groove, etc., to limit the movement direction of the cutting head 221, prevent lateral deviation or wobbling, thereby ensuring that the tool path is vertical and the cut is consistent during the cutting process. The drive mechanism applies a linear driving force through the guide structure, combined with a gravity or spring-assisted mechanism, to achieve efficient and stable vertical cutting action.

[0021] like Figure 1 As shown, the upper surface of the bearing platform 5 is provided with several evenly distributed friction stripes or anti-slip structures to prevent displacement or slippage of the tread cord during the cutting process. This embodiment significantly enhances the friction between the platform and the tread cord by forming evenly distributed friction stripes or adding anti-slip structures (such as rubber bumps, textured layers, cross grooves, etc.) on the upper surface of the bearing platform 5. This structure further improves the stability of the contact surface when the cord is held by the clamping component 4, effectively suppressing cord movement or slippage caused by cutting force, material elasticity, or platform vibration, thereby ensuring the continuity and accuracy of the cutting process.

[0022] Each of the two clamping units has a curved contact surface 42 that adheres to the surface of the tire tread cord, enabling stable clamping without damaging the cord structure. This embodiment designs the lower end of the clamping head 42 with a curved contact structure, allowing it to adhere to the tire tread cord surface more evenly and over a larger area during clamping. The tire tread cord itself has a certain degree of flexibility and elasticity; using a flat or sharp structure for clamping can easily cause indentations or damage. The curved contact surface reduces localized pressure distribution through a buffer transition. Combined with the vertical movement of the clamping cylinder 41, effective clamping can be achieved without damaging the internal cords or rubber structure of the cord, thus ensuring positional stability during the cutting process.

[0023] The cutting head 221 is a modular cutting head with a replaceable blade structure. The blade is fixed to the cutting head body by snap-fit ​​or screw connection. This embodiment, by designing the cutting head 221 as a modular structure, allows operators to quickly replace the blade portion according to usage. The blade is fixed to the cutting head body by snap-fit ​​or screw connection, ensuring secure installation and facilitating replacement after blade wear. This structure gives the cutting head 221 good maintainability and flexibility, while reducing the time and economic costs associated with replacing the entire cutting head. The modular design also allows the cutting head to be equipped with different types or materials of blades to meet the processing needs of different tire tread materials.

[0024] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. 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 novelty disclosed herein.

Claims

1. A tire tread fabric cutting device, comprising a frame (1), a cutting assembly (2), a cutting drive assembly (3), a clamping assembly (4), and a support platform (5), characterized in that: The cutting assembly (2) includes a lateral moving mechanism (21) disposed at the lower part of the frame (1) and two cutting units (22) mounted on the lateral moving mechanism (21), the two cutting units (22) being arranged symmetrically in the lateral direction; Each of the cutting units (22) includes a cutting head mounting base (222) and a cutting head (221) mounted at its lower end; The cutting drive assembly (3) includes a drive mechanism connected to the two cutting head mounting seats (222) respectively, the drive mechanism being used to drive the cutting head (221) to move in the vertical direction; The clamping assembly (4) includes two clamping units disposed between the two cutting units (22). The clamping units are fixedly installed on the lower crossbeam of the frame (1) and include a vertically arranged clamping cylinder (41) and a clamping head (42) at its lower end. The support platform (5) is fixedly installed below the frame (1) and located on the lower side of the pressing head (42) and the cutting head (221) to support the tire tread fabric to be cut.

2. The tire tread fabric cutting device as described in claim 1, characterized in that: The lateral movement mechanism (21) includes a guide rail assembly fixedly mounted on the lower crossbeam of the frame (1) and two slider assemblies that can slide along the guide rail assembly. The two cutting units (22) are respectively fixedly connected to the two slider assemblies.

3. The tire tread fabric cutting device as described in claim 1, characterized in that: Each of the cutting head mounting bases (222) is provided with a guide structure extending in a vertical direction, and the drive mechanism maintains a vertical guiding engagement with the cutting head (221) through the guide structure.

4. The tire tread fabric cutting device as described in claim 1, characterized in that: The upper surface of the bearing platform (5) is provided with several evenly distributed friction stripes or anti-slip structures to prevent the tire tread fabric from shifting or slipping during the cutting process.

5. The tire tread fabric cutting device as described in claim 1, characterized in that: Each of the two pressing units has a pressing head (42) with an arc-shaped contact surface that fits against the surface of the tire tread fabric to achieve stable pressing without damaging the fabric structure.

6. The tire tread fabric cutting device as described in claim 1, characterized in that: The cutting head (221) is a modular cutting head with a replaceable blade structure, and the blade is fixed to the cutting head body by a snap or screw connection.

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