A device for cutting a bottom plate of a cord fabric cutter

Abstract

The utility model provides a kind of bottom plate device of cutting knife of cord fabric, it is related to rubber tire manufacturing equipment technical field.The device includes and is arranged side by side first bottom plate body and second bottom plate body, first gap adjusting plate and second gap adjusting plate are respectively arranged between the two, the first gap adjusting plate is oppositely arranged with second gap adjusting plate, and cutting channel is formed for cutting knife to pass between its opposite side surface.The first gap adjusting plate is hinged connection with first bottom plate body by first rotating arm assembly, and the second gap adjusting plate is hinged connection with second bottom plate body by second rotating arm assembly, and rotating arm assembly is used to adjust the relative position between adjusting plate and bottom plate body, to control the width of cutting channel.The opposite side surface of adjusting plate is equipped with chamfer structure.A plurality of symmetrically arranged mounting through holes are provided on the first bottom plate body and the second bottom plate body.The device structure is flexible, gap is adjustable, and has strong adaptability, high cutting precision, can effectively improve the quality of cord fabric cutting and the service life of bottom plate.

Description

Technical Field

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

[0002] As a key skeleton layer in tire structure, the quality of the tire cord fabric's cutting directly affects the tire's uniformity, dynamic balance, and overall consistency. In current rubber tire manufacturing processes, the cord fabric material is typically cut to a fixed length and width on the base plate using a cutting tool. Therefore, the base plate, as the cutting reference surface, plays a decisive role in the cutting quality due to its structure and performance.

[0003] In existing technologies, the base plate of the fabric cutter is mostly a one-piece steel plate structure, usually made of ordinary medium carbon steel, with the cutting channel directly set in the center of the base plate. This type of base plate structure is fixed, and the cutting channel has a preset width, making dynamic adjustment impossible for different cutter specifications. During long-term use, the impact generated by the high-speed downward pressure of the cutter is concentrated on the edge of the fixed channel, easily leading to accelerated channel wear, widened cuts, and deformation of the cutter groove, which in turn causes quality problems such as thread breakage, adhesion, and edge tearing during fabric cutting. Furthermore, traditional base plate structures cannot quickly adjust the cutting gap. When changing different cutters or processing different layers of fabric, there are difficulties in adaptation and cumbersome adjustments, severely restricting production efficiency and product consistency.

[0004] Some improvement solutions attempt to extend the life of the base plate by replacing it with a detachable blade groove and adding a buffer liner, but they still do not fundamentally solve the problem of the fixed and non-adjustable cutting channel, nor do they optimize and decompose the structure of the cutting area, resulting in a more complex base plate structure, higher manufacturing costs, and lower maintenance efficiency.

[0005] Therefore, there is an urgent need to provide a fabric cutting blade base plate device with a reasonable structure, adjustable gap, high cutting accuracy and strong adaptability, in order to overcome the problems of non-adjustable cutting channel, short service life and unstable cutting quality in the existing technology. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a curtain fabric cutter base plate device with reasonable structure, adjustable gap, high cutting accuracy and strong adaptability.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fabric cutter base plate device includes a first base plate and a second base plate arranged side by side. A first gap adjusting plate and a second gap adjusting plate are respectively provided between the first base plate and the second base plate. The first gap adjusting plate and the second gap adjusting plate are arranged opposite to each other, and a cutting channel for the cutter to pass through is formed between their opposite sides. The first gap adjusting plate is hinged to the first base plate via a first rotating arm assembly, and the second gap adjusting plate is hinged to the second base plate via a second rotating arm assembly. The rotating arm assembly is used to adjust the relative position between each gap adjusting plate and the corresponding base plate, thereby controlling the width of the cutting channel. The opposite sides of the first gap adjusting plate and the second gap adjusting plate are provided with a chamfered structure to reduce damage to the edge of the fabric during the cutting process. The first base plate and the second base plate are respectively provided with a plurality of symmetrically arranged mounting through holes for fixing the base plate to a support structure.

[0008] Furthermore, the thickness of both the first base plate and the second base plate is 6mm.

[0009] Furthermore, the first base plate and the second base plate are made of No. 45 steel, and the carbon mass fraction of No. 45 steel is 0.42% to 0.50%.

[0010] Furthermore, a black oxide treatment layer and a wear-resistant coating layer are sequentially provided on the outer surfaces of the first base plate and the second base plate, with the wear-resistant coating layer covering the black oxide treatment layer.

[0011] Furthermore, the chamfer structure is an arc-shaped structure with a radius of 0.5 to 1 mm.

[0012] Furthermore, a limiting structure is provided between the rotating arm assembly and the first and second base plates to limit the minimum gap width of the cutting channel.

[0013] Furthermore, the opposite sides of the first and second gap adjusting plates are provided with detachable tool groove modules for replacement after wear.

[0014] Furthermore, the mounting through hole has a stepped hole structure, including an upper cylindrical through hole section and a lower positioning step, which is used to limit the position and direction of the mounting bolt.

[0015] The aforementioned curtain fabric cutting blade base plate device achieves rapid adjustment of the cutting gap by setting an adjustable gap adjustment plate between the first base plate and the second base plate, and cooperating with the rotating arm assembly to control the width of the cutting channel. This overcomes the problems of fixed channel width and inability to adapt to different blades in traditional base plates. The gap adjustment plate has a chamfered structure, which can effectively reduce damage to the edge of the curtain fabric during the cutting process and improve the cutting quality. By setting a detachable blade groove module on the adjustment plate and a positioning stepped hole structure on the base plate, it not only facilitates component replacement and installation positioning, but also enhances the adaptability and maintainability of the structure. This solves the problems of severe channel wear, difficulty in adjustment, and short lifespan in the prior art, and improves the accuracy and stability of curtain fabric cutting. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the curtain fabric cutter base plate device provided by this utility model. Detailed Implementation

[0017] 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.

[0018] like Figure 1 As shown, this application provides a curtain fabric cutter base plate device, including a first base plate body 1 and a second base plate body 2 arranged side by side.

[0019] Specifically, a first gap adjusting plate 3 and a second gap adjusting plate 4 are respectively provided between the first base plate 1 and the second base plate 2. The first gap adjusting plate 3 and the second gap adjusting plate 4 are arranged opposite to each other, forming a cutting channel 100 for the cutting blade to pass through between their opposite sides. The first gap adjusting plate 3 is hinged to the first base plate 1 through a first rotating arm assembly 5, and the second gap adjusting plate 4 is hinged to the second base plate 2 through a second rotating arm assembly 6. The rotating arm assembly is used to adjust the relative position between each gap adjusting plate and the corresponding base plate, thereby controlling the width of the cutting channel 100. The opposite sides of the first gap adjusting plate 3 and the second gap adjusting plate 4 are provided with a chamfered structure to reduce damage to the edge of the fabric during the cutting process. The first base plate 1 and the second base plate 2 are respectively provided with a plurality of symmetrically arranged mounting through holes 7 for fixing the base plate to the support structure.

[0020] This structure breaks through the limitations of traditional fixed and unadjustable base plate cutting channels, enabling dynamic adjustment of the channel width and effectively improving the equipment's adaptability and operational flexibility. The introduction of a hinged rotating arm assembly simplifies the adjustment process, allowing for rapid switching based on different cutter sizes and fabric layers, significantly improving production efficiency and cutting quality. The chamfered design effectively reduces the risk of cutter groove wear and fabric edge damage, extending the device's lifespan and improving the consistency of finished product quality. Furthermore, standardized through-holes enable rapid installation and positioning, facilitating maintenance and replacement and helping to reduce maintenance costs.

[0021] In the above embodiments, the hinge method of the gap adjustment plate can adopt various structures such as pin connection and ball joint connection to meet the durability and flexibility requirements under different working conditions; the rotating arm assembly can also adopt manual adjustment, pneumatic drive or electric drive according to actual needs.

[0022] Furthermore, both the first base plate 1 and the second base plate 2 have a thickness of 6mm. Standardizing the base plate thickness to 6mm achieves a good balance between material utilization and processing efficiency. Compared to traditional thick plate structures, this thickness configuration reduces the overall weight of the device, lowers equipment energy consumption, and improves the responsiveness of adjustment components and the precision of mechanism engagement, thus contributing to improved cutting accuracy and system reliability. In addition, a uniform thickness facilitates batch processing and modular replacement of the base plates, effectively reducing manufacturing costs and maintenance difficulty. In different application scenarios, the base plate thickness can be appropriately adjusted according to the fabric material, tool size, and equipment load conditions. For example, base plates with thicknesses of 5mm, 8mm, or 10mm can be selected to meet the strength and rigidity requirements under different working conditions.

[0023] The first base plate 1 and the second base plate 2 are made of No. 45 steel, which has a carbon mass fraction of 0.42% to 0.50%, effectively improving the strength and durability of the overall structure. It can withstand repeated impacts during high-frequency cutting without plastic deformation or structural damage, thereby extending the service life of the base plate.

[0024] The outer surfaces of the first base plate 1 and the second base plate 2 are sequentially coated with a black oxide layer and a wear-resistant coating, with the wear-resistant coating covering the black oxide layer. This composite surface treatment significantly improves the corrosion resistance and wear resistance of the base plates in high-frequency cutting environments, extending their service life and reducing the decrease in accuracy and replacement frequency caused by surface wear or rust. The black oxide layer provides basic protection for the base plates, while the wear-resistant coating bears the main load-bearing friction function, effectively maintaining the cleanliness and flatness of the cutting channel 100 edges, thereby ensuring the quality of the fabric cutting. The overall treatment solution combines decorative, protective, and functional properties, making it suitable for long-term, high-intensity working conditions.

[0025] The chamfer structure is an arc shape with a radius of 0.5 to 1 mm. This 0.5–1 mm radius chamfer structure not only effectively reduces mechanical damage to the fabric edges during cutting, improving the edge integrity and neatness of the finished fabric, but also extends the service life of the cutters and adjusting plates. Compared to sharp angles or beveled chamfers, the arc structure has a higher stress buffering capacity, helping to maintain the stable shape of the channel edges during high-frequency cutting, and improving overall cutting consistency and repeatability.

[0026] A limiting structure is provided between the rotating arm assembly and the first base plate 1 and the second base plate 2 to limit the minimum gap width of the cutting channel 100. This limiting structure improves the operational safety and stability of the device, effectively preventing over-adjustment or component interference caused by misoperation, ensuring cutting accuracy and tool safety. Simultaneously, this structure can serve as a calibration benchmark for the minimum width of the cutting channel, facilitating process adjustment and repeated setting, improving adjustment efficiency and controllability, and reducing maintenance costs. The structure is simple, easy to manufacture, and does not affect the flexible movement of the adjustment plate within its effective range.

[0027] The first gap adjusting plate 3 and the second gap adjusting plate 4 are provided with detachable tool groove modules on their opposite sides for replacement after wear. The detachable tool groove module structure significantly improves the maintainability and economy of the base plate device. Compared with the traditional integrated adjusting plate structure, this design can modularly isolate high-wear areas, reduce maintenance costs and replacement cycles, shorten downtime, and improve production continuity.

[0028] Mounting through hole 7 is a stepped hole structure, consisting of an upper cylindrical through hole section and a lower positioning step, used to limit the position and direction of the mounting bolts. The stepped hole structure improves the installation accuracy and structural stability of the base plate, making it particularly suitable for multi-point fixing applications. The geometric constraint of the positioning step enhances the device's resistance to displacement under cyclic loads and vibrations, extends the service life of the fasteners and the base plate, and reduces maintenance frequency. Furthermore, standardized stepped holes contribute to consistent positioning during mass production and assembly processes, improving overall product quality and installation efficiency.

[0029] 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 fabric cutter base plate device, characterized in that, It includes a first base plate (1) and a second base plate (2) arranged side by side; A first gap adjustment plate (3) and a second gap adjustment plate (4) are respectively provided between the first base plate (1) and the second base plate (2). The first gap adjusting plate (3) and the second gap adjusting plate (4) are arranged opposite to each other, and a cutting channel (100) for the cutting knife to pass through is formed between their opposite sides. The first gap adjusting plate (3) is hinged to the first base plate (1) via the first rotating arm assembly (5), and the second gap adjusting plate (4) is hinged to the second base plate (2) via the second rotating arm assembly (6). The rotating arm assembly is used to adjust the relative position between each gap adjustment plate and the corresponding base plate, thereby controlling the width of the cutting channel (100). The first gap adjusting plate (3) and the second gap adjusting plate (4) have chamfered structures on their opposite sides to reduce damage to the edge of the fabric during the cutting process. The first base plate (1) and the second base plate (2) are respectively provided with a plurality of symmetrically arranged mounting through holes (7) for fixing the base plate to the support structure.

2. The cutting blade base plate device as described in claim 1, characterized in that, The thickness of the first base plate (1) and the second base plate (2) is 6 mm.

3. The cutting blade base plate device as described in claim 1, characterized in that, The first base plate (1) and the second base plate (2) are made of No. 45 steel, and the carbon mass fraction of the No. 45 steel is 0.42% to 0.50%.

4. The cutting blade base plate device as described in claim 1, characterized in that, The outer surfaces of the first base plate (1) and the second base plate (2) are sequentially provided with a black oxide treatment layer and a wear-resistant coating layer, with the wear-resistant coating layer covering the black oxide treatment layer.

5. The cutting blade base plate device as described in claim 1, characterized in that, The chamfered structure is an arc-shaped structure with a radius of 0.5 to 1 mm.

6. The cutting blade base plate device as described in claim 1, characterized in that, A limiting structure is provided between the rotating arm assembly and the first base plate (1) and the second base plate (2) to limit the minimum gap width of the cutting channel (100).

7. The cutting blade base plate device as described in claim 1, characterized in that, The first gap adjusting plate (3) and the second gap adjusting plate (4) are provided with detachable tool groove modules on their opposite sides for replacement after wear.

8. The cutting blade base plate device as described in claim 1, characterized in that, The mounting through hole (7) is a stepped hole structure, including an upper cylindrical through hole section and a lower positioning step, which is used to limit the position and direction of the mounting bolt.

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