Cord fabric cutting device

Abstract

The utility model relates to the technical field of rubber forming equipment, in particular to a cord fabric cutting device which comprises a cutting mechanism, the cutting mechanism comprises a vertical guide rail, a transverse guide rail is arranged on one side of the bottom of the vertical guide rail, a second moving seat is arranged on the outer side of the transverse guide rail, and a cutting motor is arranged on one side of the transverse guide rail. The second moving seat can be driven by the cutting motor to reciprocate along the outer side of the transverse guide rail, and the cutting mechanism is connected with the transverse guide rail through the second moving seat and moves along the outer side of the transverse guide rail through movement of the second moving seat. An ultrasonic cutter cross beam stretches across the upper portion of a main conveying belt, a cutter is separated from curtain cloth before cutting, when cutting is started, the cutter rapidly descends and completes cutting, resistance and interference in the cutting process are reduced, the problem of wrinkles when the curtain cloth crosses a cutter rest in the traditional cutting disc cutting process is effectively solved, the flatness of a cutting notch is ensured, and the cutting efficiency is improved. And the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber forming equipment, and particularly relates to a cord fabric cutting device. Background Technique

[0002] In the tire manufacturing industry, as a key component of the tire skeleton material, the cutting and splicing quality of the cord fabric directly affects the overall performance and service life of the tire. In the traditional tire production process, the cutting link of the cord fabric mainly adopts the disc knife cutting method. Although this method meets the production requirements to a certain extent, with the continuous progress of tire manufacturing technology and the increasing requirements for tire quality in the market, the existing problems are becoming increasingly prominent.

[0003] The traditional cord fabric cutting device relies on the high-speed rotation of the disc knife to cut the cord fabric. The disc knife must be used in cooperation with the tool holder, and the position of the tool holder is usually slightly higher than the main conveyor belt. During the cutting process, when the cord fabric crosses the tool holder under the push of the conveyor belt, it often suffers from resistance and slight wrinkles occur, resulting in uneven cut edges of the cut cord fabric, reducing the overall quality of the product. In addition, when the disc knife cuts the cord fabric at high speed, a small amount of flying chips will adhere to the cord fabric, which not only pollutes the cord fabric but also further affects the product quality. At the same time, the intense friction between the high-speed rotating cutting edge and the cord fabric also accelerates the wear of the cutting edge, significantly shortening the service life of the tool and increasing the production cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cord fabric cutting device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cord fabric cutting device includes a cutting mechanism. The cutting mechanism includes a vertical guide rail. One side of the bottom of the vertical guide rail is provided with a horizontal guide rail. The outside of the horizontal guide rail is provided with a second moving seat. One side of the horizontal guide rail is provided with a cutting motor. The cutting motor can drive the second moving seat to make a reciprocating motion along the outside of the horizontal guide rail. The cutting mechanism is connected to the horizontal guide rail through the second moving seat and moves along the outside of the horizontal guide rail through the movement of the second moving seat. The bottom of the cutting mechanism is provided with a main conveyor belt for conveying the cord fabric. Both sides of the main conveyor belt are provided with longitudinal guide rails. The longitudinal guide rails are arranged below the horizontal guide rail. The outside of the vertical guide rail is also provided with a first moving seat. The first moving seat can move up and down along the outside of the vertical guide rail under the drive of a lifting motor. One side of the first moving seat is provided with an ultrasonic cutting device for cutting the cord fabric.

[0007] Preferably, the ultrasonic cutting device includes a transducer, an amplitude modulation rod is arranged at the bottom of the transducer, and a cutter body is further arranged at the bottom of the amplitude modulation rod. Among them, the transducer is directly connected to an ultrasonic generator.

[0008] Preferably, the first moving seat includes a mounting seat, a servo motor is arranged inside the mounting seat, the output end of the servo motor is fixedly connected with a driving shaft, one end of the driving shaft is fixedly connected with an adjusting disk, and the mounting seat is movably connected with the ultrasonic cutting device through the adjusting disk.

[0009] Preferably, the edge of the cutter body is set to be arc-shaped.

[0010] Preferably, the transverse guide rail spans above the main conveyor belt, the transverse guide rail is arranged at the top of the longitudinal guide rail, and the height of the longitudinal guide rail is higher than that of the main conveyor belt.

[0011] Preferably, a third moving seat is arranged at the top of the longitudinal guide rail, the transverse guide rail is connected with the longitudinal guide rail through the third moving seat, and the third moving seat can slide along the outside of the longitudinal guide rail.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, before cutting, the ultrasonic cutting knife beam spans above the main conveyor belt and the cutting knife is separated from the cord fabric. When starting cutting, the cutting knife quickly descends and completes the cutting, reducing the resistance and interference during the cutting process. At the same time, the cutting knife adopts a blade head with an arc design. During the cutting process, the cutting edge produces a downward extrusion and shearing effect on the nylon cord fabric, making it easier for the cutting edge to cut into the incision and making the incision flat quickly, effectively avoiding the wrinkling problem of the cord fabric when crossing the tool rest in the traditional circular knife cutting, ensuring the flatness of the cutting incision, and improving the product quality;

[0014] 2. In the present utility model, during the cutting process of the ultrasonic cutting knife, energy is generated through high-frequency vibration to achieve cutting, avoiding direct high-speed friction with the cord fabric, reducing the wear of the cutting edge. At the same time, the generation of cutting chips is avoided, effectively preventing the pollution of the cord fabric, significantly prolonging the service life of the cutting tool, and improving the cleanliness and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the overall structural schematic diagram of the cutting mechanism in the present utility model;

[0017] Figure 3 is the present utility model Figure 2 in the overall structural explosion schematic diagram of the first moving seat and the ultrasonic cutting device;

[0018] In the figure: 1. Cutting mechanism; 11. Vertical guide rail; 12. Lifting motor; 13. First moving seat; 131. Mounting seat; 132. Servo motor; 133. Driving shaft; 134. Position adjusting disc; 14. Ultrasonic cutting device; 141. Transducer; 142. Amplitude modulation rod; 143. Cutter body; 2. Main conveyor belt; 3. Longitudinal guide rail; 31. Third moving seat; 4. Transverse guide rail; 41. Cutting motor; 42. Second moving seat. Specific embodiments

[0019] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0020] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification drawings and specific embodiments.

[0021] Please refer to Figures 1-3 , the present utility model provides a technical solution:

[0022] A cord fabric cutting device, including a cutting mechanism 1, the cutting mechanism 1 includes a vertical guide rail 11, a transverse guide rail 4 is arranged on one side of the bottom of the vertical guide rail 11, a second moving seat 42 is arranged on the outside of the transverse guide rail 4, and a cutting motor 41 is arranged on one side of the transverse guide rail 4. The cutting motor 41 can drive the second moving seat 42 to reciprocate along the outside of the transverse guide rail 4. The cutting mechanism 1 is connected to the transverse guide rail 4 through the second moving seat 42 and moves along the outside of the transverse guide rail 4 through the movement of the second moving seat 42. A main conveyor belt 2 for conveying cord fabric is arranged at the bottom of the cutting mechanism 1. Longitudinal guide rails 3 are arranged on both sides of the main conveyor belt 2. The longitudinal guide rails 3 are arranged below the transverse guide rail 4. A first moving seat 13 is further arranged on the outside of the vertical guide rail 11. The first moving seat 13 can move up and down along the outside of the vertical guide rail 11 under the drive of a lifting motor 12. An ultrasonic cutting device 14 for cutting cord fabric is arranged on one side of the first moving seat 13.

[0023] In this embodiment, please refer to Figure 3, the ultrasonic cutting device 14 includes a transducer 141. An amplitude modulation rod 142 is provided at the bottom of the transducer 141, and a cutter body 143 is further provided at the bottom of the amplitude modulation rod 142. Among them, the transducer 141 is directly connected to an ultrasonic generator. In this embodiment, the ultrasonic generator converts a 50 Hz current into a high-frequency electrical energy of 20 - 40 KHz and transmits it to the transducer 141, and then converts this high-frequency electrical energy into a mechanical vibration of the same frequency. Subsequently, the mechanical vibration is transmitted to the cutter body 143 through the amplitude modulation rod 142. The cutter body 143 transmits the received high-frequency vibration energy to the curtain fabric to be cut, causing high-frequency vibration on its surface. When the vibration amplitude is large enough, the surface material of the curtain fabric melts locally, thereby realizing the cutting process.

[0024] In this embodiment, please refer to Figure 3 , the first moving seat 13 includes a mounting seat 131. A servo motor 132 is provided inside the mounting seat 131. The output end of the servo motor 132 is fixedly connected to a driving shaft 133. One end of the driving shaft 133 is fixedly connected to an adjusting disk 134. The mounting seat 131 is movably connected to the ultrasonic cutting device 14 through the adjusting disk 134. In this embodiment, by giving power to the servo motor 132 to control the rotation of the driving shaft 133, the driving shaft 133 can drive the adjusting disk 134 to rotate. By rotating the adjusting disk 134, the angle of the ultrasonic cutting device 14 can be adjusted, thereby changing the cutting angle of the cutter body 143 with respect to the curtain fabric.

[0025] In this embodiment, please refer to Figure 3 , the edge of the cutter body 143 is set to be arc-shaped. In this embodiment, the arc-shaped edge can contact the curtain fabric more smoothly during the cutting process, reducing the direct impact and severe friction between the cutter and the curtain fabric, thereby prolonging the service life of the cutter, reducing the replacement frequency, improving the production efficiency. The arc-shaped edge can distribute the cutting force more evenly, reducing the stress concentration phenomenon generated during the cutting process, avoiding the problem of uneven incision caused by uneven stress, and improving the cutting accuracy and the quality of the curtain fabric.

[0026] In this embodiment, please refer to Figures 1-2 , the transverse guide rail 4 spans above the main conveyor belt 2, and the transverse guide rail 4 is provided on the top of the longitudinal guide rail 3. Among them, the height of the longitudinal guide rail 3 is higher than that of the main conveyor belt 2. In this embodiment, when the main conveyor belt 2 conveys the curtain fabric, it is ensured that the transverse guide rail 4 and the cutting mechanism 1 do not contact the curtain fabric, ensuring the stability of the curtain fabric during conveyance and avoiding resistance and wrinkles when the curtain fabric is pushed.

[0027] In this embodiment, please refer to Figure 1, a third moving seat 31 is provided at the top of the longitudinal guide rail 3. The transverse guide rail 4 is connected to the longitudinal guide rail 3 through the third moving seat 31, and the third moving seat 31 can slide along the outside of the longitudinal guide rail 3. In this embodiment, through the cooperation of the third moving seat 31 and the longitudinal guide rail 3, the longitudinal position of the longitudinal guide rail 3 can be moved, so as to adjust the cutting position of the ultrasonic cutting device 14 on the curtain fabric.

[0028] The working principle of the present utility model:

[0029] Step 1: Longitudinal guide rails 3 are provided on both sides of the main conveyor belt 2. Since the height of the longitudinal guide rails 3 is higher than that of the main conveyor belt 2, the transverse guide rail 4 is arranged above the longitudinal guide rails 3, and a cutting mechanism 1 is arranged on the transverse guide rail 4, so that the cutting mechanism 1 straddles above the main conveyor belt 2. When the cutting is started, the lifting motor 12 drives the first moving seat 13 to descend along the vertical guide rail 11. When the first moving seat 13 descends, the ultrasonic cutting device 14 contacts the curtain fabric on the main conveyor belt 2, and the cutting motor 41 drives the cutting mechanism 1 to reciprocate along the transverse guide rail 4, so that the cutter body 143 realizes the cutting of the curtain fabric. At the same time, the servo motor 132 drives the drive shaft 133 to rotate, and the drive shaft 133 rotates to drive the adjustment disc 134 to drive the ultrasonic cutting device 14 to rotate, so as to adjust the cutting angle of the cutter body 143, and the cutter body 143 can be cut along a preset angle. This process realizes the non-contact pushing of the cutter and the curtain fabric during cutting, avoiding the problem of wrinkles when the curtain fabric crosses the tool rest in the traditional method. At the same time, since the cutter body 143 is designed with an arc-shaped cutting edge, during the cutting process, the cutting edge produces a downward extrusion and shearing effect on the nylon curtain fabric, making it easier for the cutting edge to cut in, and the cut is quickly flat;

[0030] Step 2: The ultrasonic generator converts the 50Hz current into high-frequency electrical energy, and the frequency range is usually between 20 and 40KHz. This high-frequency electrical energy is then transmitted to the transducer 141, and the transducer 141 converts the electrical energy into mechanical vibrations of the same frequency. Then, the amplitude modulation rod 142 further performs amplitude modulation processing on this mechanical vibration to ensure that the vibration energy can be stably and efficiently transmitted to the cutting edge of the cutter body 143. When the cutting edge of the cutter body 143 receives the high-frequency vibration energy, it directly transmits this energy to the curtain fabric to be cut. Under the action of the high-frequency vibration, the surface material of the curtain fabric begins to generate frictional heat. When the vibration amplitude is large enough, the material on the surface of the curtain fabric will reach the melting point and melt, so as to achieve cutting. At the same time, the cutting motor 41 drives the cutter body 143 to reciprocate, and the ultrasonic cutting of the curtain fabric can be realized.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. The present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. The cord cutting device is characterized by: The cutting mechanism (1) comprises a vertical guide rail (11), a transverse guide rail (4) is arranged on one side of the bottom of the vertical guide rail (11), a second movable seat (42) is arranged on the outer side of the transverse guide rail (4), a cutting motor (41) is arranged on one side of the transverse guide rail (4), and the second movable seat (42) can be driven by the cutting motor (41) to make a reciprocating motion along the outer side of the transverse guide rail (4), and the cutting mechanism (1) is connected to the transverse guide rail (4) via the second movable seat (42), and moves along the outer side of the transverse guide rail (4) via the second movable seat (42); A main conveyor belt (2) for conveying curtain fabric is arranged at the bottom of the cutting mechanism (1), longitudinal guide rails (3) are arranged on both sides of the main conveyor belt (2), and the longitudinal guide rails (3) are arranged below the transverse guide rails (4). A first movable seat (13) is also arranged on the outer side of the vertical guide rail (11), and the first movable seat (13) can move up and down along the outer side of the vertical guide rail (11) under the drive of a lifting motor (12), and an ultrasonic cutting device (14) for cutting the curtain fabric is arranged on one side of the first movable seat (13).

2. The cord cutting device according to claim 1, characterized in that: The ultrasonic cutting device (14) comprises a transducer (141), an amplitude modulation rod (142) is arranged at the bottom of the transducer (141), and a cutting blade body (143) is further arranged at the bottom of the amplitude modulation rod (142), wherein the transducer (141) is directly connected to an ultrasonic generator.

3. The cord cutting device according to claim 1, characterized in that: The first movable seat (13) comprises a mounting seat (131), a servo motor (132) is arranged inside the mounting seat (131), an output end of the servo motor (132) is fixedly connected to a drive shaft (133), one end of the drive shaft (133) is fixedly connected to a positioning disk (134), and the mounting seat (131) is movably connected to the ultrasonic cutting device (14) via the positioning disk (134).

4. The cord cutting device according to claim 2, characterized in that: The cutting edge of the cutting knife body (143) is arranged in an arc shape.

5. The cord cutting device according to claim 1, characterized in that: The transverse guide rail (4) spans across the main conveyor belt (2), and the transverse guide rail (4) is arranged on the top of the longitudinal guide rail (3), wherein the height of the longitudinal guide rail (3) is higher than the main conveyor belt (2).

6. The cord cutting device according to claim 1, characterized in that: A third movable seat (31) is provided at the top of the longitudinal guide rail (3), the transverse guide rail (4) is connected to the longitudinal guide rail (3) via the third movable seat (31), and the third movable seat (31) can slide along the outer side of the longitudinal guide rail (3).

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