Novel pre-deformation device of steel cord stranding machine

Abstract

The utility model relates to the technical field of steel cord production, in particular to a novel pre-deformation device of a steel cord stranding machine, which comprises a bottom plate, bearing components are fixedly mounted at two ends of the bottom plate, the same steel wire is lapped on the two bearing components, two adjusting plates are fixedly mounted on the bottom plate, and the adjusting plates are fixedly mounted on the bottom plate. The tops of the two adjusting plates are slidably connected with the same elastic jacking assembly used for adjusting the tension of the steel wire, and a driving assembly used for driving the elastic jacking assembly to slide is fixedly installed on the side wall of one adjusting plate. According to the utility model, a steel wire to be stretched is erected on the two bearing assemblies, the bottom of the elastic jacking assembly abuts against the steel wire, and the driving assembly drives the elastic jacking assembly to tension the steel wire, so that the steel wire reaches the maximum deformation quantity, and the steel wire is kept in a relatively stable state before being stranded; and the subsequent twisting forming process operation of the steel cord is facilitated, so that the constant load elongation and the elongation at break of the formed steel cord are improved.

Description

Technical Field

[0001] This utility model relates to the field of steel cord production technology, specifically to a novel pre-deformation device for a steel cord twisting machine. Background Technology

[0002] Steel cord is mainly used as the reinforcing material in rubber products such as passenger car tires, light truck tires, heavy-duty truck tires, construction machinery tires, and aircraft tires. Radial tires made with steel cord as a reinforcing material have advantages such as long service life, high speed, puncture resistance, good elasticity, safety and comfort, and fuel economy.

[0003] In the production process of steel cord, the stability of the unwinding tension and the deformation of the steel wire play a crucial role in the twisting quality of the twisting machine. The magnitude of the steel wire deformation directly affects the elongation at load and the elongation at break of the cord. Current cord-forming devices consist of an "L"-shaped bracket, a five-hole distributor bracket, a button-type carbide deformer, and a guide roller. As the steel wire passes through, this device cannot stabilize the unwinding tension, easily leading to twisting defects and wire jumping off the guide roller due to tension fluctuations. Furthermore, the button-type carbide deformer, located behind the distributor, has a limited deformation effect on the steel wire, resulting in lower elongation at load and elongation at break of the cord, failing to meet the requirements of some customers and often exhibiting instability. Therefore, there is an urgent need for a technical solution to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a novel pre-deformation device for a steel cord twisting machine to solve the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0006] A novel pre-deformation device for a steel cord twisting machine includes a base plate, with receiving components fixedly installed at both ends of the base plate. A single steel wire is overlapped on the two receiving components. Two adjusting plates are fixedly installed on the base plate, and the tops of the two adjusting plates are slidably connected to the same elastic support component for adjusting the tension of the steel wire. A driving component for driving the elastic support component to slide is fixedly installed on the side wall of one of the adjusting plates.

[0007] Based on a preferred embodiment of a novel pre-deformation device for a steel cord twisting machine, the elastic top support assembly includes a limiting plate slidably mounted on the top of two adjusting plates. An extension block is slidably mounted inside the limiting plate. Arc-shaped grooves are provided on the side walls of the adjusting plates. The same connecting rod is slidably connected within the two arc-shaped grooves. A slot is provided inside the extension block for the connecting rod to slide through. A positioning rod is fixedly mounted within the slot, and the connecting rod is slidably sleeved on the outside of the positioning rod. A spring is slidably sleeved on the outside of the positioning rod, and the two ends of the spring abut against the top of the slot and the top of the outer side of the connecting rod, respectively. A rolling roller is rotatably connected to the bottom of the extension block.

[0008] Based on a preferred embodiment of a novel pre-deformation device for a steel cord twisting machine, the receiving component includes a support fixedly mounted on a base plate, a transmission roller for cooperating with a pressing roller rotatably connected to the top of the support, a first motor fixedly mounted on the side wall of the support, and the output end of the first motor fixedly connected to the transmission roller.

[0009] Based on a preferred embodiment of a novel pre-deformation device for a steel cord twisting machine, both the drive roller and the rolling roller have mirrored arc surfaces inside for converging steel wires.

[0010] Based on a preferred embodiment of a novel pre-deformation device for a steel cord twisting machine, the drive assembly includes two bearing seats fixedly mounted on the side wall of an adjusting plate. The two bearing seats are rotatably connected to the same screw. A threaded seat is fixedly mounted on the side wall of the limiting plate, and the threaded seat is threadedly connected to the screw. A second motor for driving the screw to rotate is fixedly mounted on the side wall of one of the bearing seats.

[0011] Based on a preferred embodiment of a novel pre-deformation device for a steel cord twisting machine, the two drive rollers have different transmission speeds.

[0012] Compared with the prior art, the present invention has the following advantages: In the present invention, the steel wire to be stretched is placed on two supporting components, the bottom of the elastic support component abuts against the steel wire, and the driving component drives the elastic support component to tension the steel wire, so that the steel wire reaches the maximum deformation. This makes the steel wire relatively stable before twisting, which facilitates the subsequent twisting and forming process of steel cord, thereby improving the constant load elongation and breaking elongation of the formed steel cord. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 for Figure 1 A magnified view of middle A;

[0016] Figure 3 This is a schematic diagram of the elastic support component in this utility model;

[0017] Figure 4 for Figure 3 Side sectional view.

[0018] In the diagram: 1. Base plate; 2. Receiving component; 21. Support; 22. Transmission roller; 23. First motor; 24. Mirror arc surface; 3. Adjusting plate; 31. Arc-shaped slide groove; 4. Elastic top support component; 41. Limiting plate; 42. Extension block; 421. Slot; 422. Positioning rod; 43. Connecting rod; 44. Spring; 45. Rolling roller; 5. Drive component; 51. Shaft seat; 52. Screw; 53. Threaded seat; 54. Second motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Example

[0022] like Figures 1 to 4As shown, this utility model provides a novel pre-deformation device for a steel cord twisting machine, including a base plate 1. Both ends of the base plate 1 are fixedly installed with receiving components 2. The same steel wire is overlapped on the two receiving components 2. Two adjusting plates 3 are fixedly installed on the base plate 1. The top of the two adjusting plates 3 is slidably connected to the same elastic support component 4 for adjusting the tension of the steel wire. A driving component 5 for driving the elastic support component 4 to slide is fixedly installed on the side wall of one of the adjusting plates 3.

[0023] As a further explanation of this embodiment, in the existing steel cord production process, the stability of the unwinding tension and the deformation of the steel wire play a crucial role in the twisting quality of the twisting machine. The magnitude of the steel wire deformation directly affects the elongation at constant load and the elongation at break of the cord. Current cord-forming devices consist of an "L"-shaped bracket, a five-hole distributor bracket, a button-type carbide deformer, and a guide roller. When the steel wire passes through, this device cannot stabilize the unwinding tension, easily leading to twisting defects and wire jumping off the guide roller due to tension fluctuations. Simultaneously, the button-type carbide deformer located behind the distributor has a limited deformation effect on the steel wire, resulting in a lower elongation at constant load and elongation at break of the cord, failing to meet the requirements of some customers, and is often unstable. In this embodiment, the steel wire to be stretched is placed on two receiving components 2. The bottom of the elastic support component 4 abuts against the steel wire, and the drive component 5 drives the elastic support component 4 to tension the steel wire, so that the steel wire reaches the maximum deformation. This makes the steel wire relatively stable before twisting, which is convenient for the subsequent twisting and forming process of steel cord, thereby improving the constant load elongation and breaking elongation of the formed steel cord.

[0024] A further embodiment of a novel pre-deformation device for a steel cord twisting machine includes an elastic top support assembly 4 comprising a limiting plate 41 slidably mounted on the top of two adjusting plates 3, an extension block 42 slidably mounted within the limiting plate 41, arc-shaped grooves 31 formed on the side walls of the adjusting plates 3, a connecting rod 43 slidably connected within the two arc-shaped grooves 31, a slot 421 formed within the extension block 42 for the connecting rod 43 to slide through, a positioning rod 422 fixedly mounted within the slot 421, and the connecting rod 43 slidably sleeved on the outside of the positioning rod 422, a spring 44 slidably sleeved on the outside of the positioning rod 422, with the two ends of the spring 44 respectively abutting against the top of the slot 421 and the top of the outer side of the connecting rod 43, and a rolling roller 45 rotatably connected to the bottom of the extension block 42.

[0025] As a further explanation of this embodiment, in this embodiment, when the driving component 5 drives the limiting plate 41 to slide along the length direction of the adjusting plate 3, the connecting rod 43 drives the extension block 42 to move downward along the preset direction of the arc-shaped groove 31, so that the pressing roller 45 presses against the steel wire downward, causing the steel wire to undergo downward tensile deformation. The elastic force generated by the deformation of the spring 44 pushes the connecting rod 43 and the extension block 42 downward, applying a secondary pushing force to the steel wire, so that the elongation of the steel wire reaches the maximum. In addition, by setting the arc-shaped groove 31 on the adjusting plate 3, the horizontal height of the extension block 42 decreases synchronously with the sliding of the limiting plate 41 until it reaches the lowest point when it reaches the middle position of the adjusting plate 3. This is because the two ends of the steel wire are supported by two supporting components 2, and the middle part of the steel wire is most easily stretched and deformed after losing the support force, which facilitates the extension of the steel wire.

[0026] A further embodiment of a novel pre-deformation device for a steel cord twisting machine includes a receiving component 2 comprising a support 21 fixedly mounted on a base plate 1, a transmission roller 22 for cooperating with a pressing roller 45 rotatably connected to the top of the support 21, a first motor 23 fixedly mounted on the side wall of the support 21, and the output end of the first motor 23 fixedly connected to the transmission roller 22.

[0027] A further embodiment of a novel pre-deformation device for a steel cord twisting machine is provided in which both the drive roller 22 and the rolling roller 45 have mirrored arc surfaces 24 for converging steel wires.

[0028] As a further explanation of this embodiment, in order to prevent the steel wire from bouncing and detaching from the transmission roller 22 and the rolling roller 45 during the stretching deformation process due to the transmission of the receiving component 2, the steel wire is always located in the middle of the transmission roller 22 or the rolling roller 45 during the transmission process, which can greatly reduce the displacement of the steel wire. After the steel wire bounces, it can also be automatically corrected by contact with the mirror arc surface 24.

[0029] A further embodiment of a novel pre-deformation device for a steel cord twisting machine includes a drive assembly 5 comprising two bearing seats 51 fixedly mounted on the side wall of an adjusting plate 3, with the same screw 52 rotatably connected inside the two bearing seats 51, a threaded seat 53 fixedly mounted on the side wall of a limiting plate 41, and the threaded seat 53 being threadedly connected to the screw 52, ​​and a second motor 54 for driving the screw 52 to rotate fixedly mounted on the side wall of one of the bearing seats 51.

[0030] A further embodiment of a novel pre-deformation device for a steel cord twisting machine, wherein the two drive rollers 22 have different transmission speeds.

[0031] As a further explanation of this embodiment, in this embodiment, by using a transmission method with different transmission speeds at both ends, the steel wires located in the two receiving components 2 will not quickly recover after deformation due to loss of resistance, which facilitates the subsequent twisting process.

[0032] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0033] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A novel pre-deformation device for a steel cord twisting machine, comprising a base plate (1), characterized in that, Both ends of the base plate (1) are fixedly installed with receiving components (2), and the same steel wire is overlapped on the two receiving components (2). Two adjusting plates (3) are fixedly installed on the base plate (1). The top of the two adjusting plates (3) is slidably connected to the same elastic support component (4) for adjusting the tension of the steel wire. A driving component (5) for driving the elastic support component (4) to slide is fixedly installed on the side wall of one of the adjusting plates (3).

2. The novel pre-deformation device for a steel cord twisting machine according to claim 1, characterized in that, The elastic support assembly (4) includes a limiting plate (41) slidably mounted on the top of two adjusting plates (3). An extension block (42) is slidably mounted in the limiting plate (41). The side walls of the adjusting plates (3) are provided with arc-shaped grooves (31). The same connecting rod (43) is slidably connected in the two arc-shaped grooves (31). The extension block (42) is provided with a slot (421) for the connecting rod (43) to slide in. A positioning rod (422) is fixedly mounted in the slot (421). The connecting rod (43) is slidably sleeved on the outside of the positioning rod (422). A spring (44) is slidably sleeved on the outside of the positioning rod (422). The two ends of the spring (44) are respectively pressed against the top of the slot (421) and the top of the outside of the connecting rod (43). A rolling roller (45) is rotatably connected to the bottom of the extension block (42).

3. The novel pre-deformation device for a steel cord twisting machine according to claim 2, characterized in that, The receiving component (2) includes a support (21) fixedly installed on the base plate (1). The top of the support (21) is rotatably connected to a transmission roller (22) for cooperating with the rolling roller (45). A first motor (23) is fixedly installed on the side wall of the support (21), and the output end of the first motor (23) is fixedly connected to the transmission roller (22).

4. The novel pre-deformation device for a steel cord twisting machine according to claim 3, characterized in that, Both the drive roller (22) and the rolling roller (45) have mirrored arc surfaces (24) inside for gathering steel wires.

5. The novel pre-deformation device for a steel cord twisting machine according to claim 2, characterized in that, The drive assembly (5) includes two bearing seats (51) fixedly mounted on the side wall of the adjusting plate (3). The two bearing seats (51) are rotatably connected to the same screw (52). A threaded seat (53) is fixedly mounted on the side wall of the limiting plate (41), and the threaded seat (53) is threadedly connected to the screw (52). A second motor (54) for driving the screw (52) to rotate is fixedly mounted on the side wall of one of the bearing seats (51).

6. The novel pre-deformation device for a steel cord twisting machine according to claim 3, characterized in that, The two drive rollers (22) have different transmission speeds.

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