A device and method for adjusting the position of pre-deformed steel wire waveform in a cord.

Abstract

This invention discloses a device and method for adjusting the position of pre-deformed steel wire waveform in a cord. The device includes a distribution plate and multiple adjustment mechanisms. The multiple adjustment mechanisms are circumferentially distributed on the distribution plate. Each adjustment mechanism includes a base and a movable guide wheel, which is radially connected to the base. The pre-deformed waveform steel wire passes through the movable guide wheel to the twist point. This invention improves the adhesive penetration rate of the cord and enables the production of flat cord structures.

Description

Technical Field

[0001] This invention relates to the field of steel cord production technology, and in particular to a device and method for adjusting the position of pre-deformed steel wire waveform in the cord. Background Technology

[0002] When a tire is punctured by a sharp object, oxygen or water vapor can seep into the cord through the puncture. Because there are gaps inside the cord, this oxygen or water vapor can continue to diffuse along the cord, causing the steel wires to rust and the adhesive to fail. To solve this problem, the cord is currently designed to be open or highly permeable, allowing the rubber to easily penetrate into the cord and fill the gaps during the vulcanization process. This prevents the diffusion of oxygen or water vapor inside the cord.

[0003] However, as Figure 3 As shown: The steel wires are fed through the wire feeding unit 8 and then guided by the first conductor mechanism 9 to the pre-deformer 10 for pre-deformation, resulting in the desired waveform steel wires 11 (F1, F2, F3, F4, and F5). The waveform positions on each steel wire are arranged sequentially, and it is expected that after the waveform steel wires 11 are twisted into a cord, the waveforms in each steel wire will still appear sequentially at these positions. However, since the paths of each steel wire from the second conductor mechanism 12 through the splitting device 13 to the twisting point 14 are different and uncontrollable, Figure 4 Taking L1 as an example: the path is the longest, followed by L2, and the shortest path is L3. Since the travel speed of each wire is always the same, when the wires are twisted together after passing through different paths, the previously arranged waveform positions are broken. Ultimately, under the twisting action of the twisting machine 15, the desired cord structure cannot be formed (e.g., ...). Figure 5 As shown in the figure, the high adhesive penetration rate expected for the desired cord structure cannot be obtained, and this production method cannot produce cords with special structures such as flat structures. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a device and method for adjusting the position of the pre-deformed steel wire waveform in the cord, so as to solve the problems of low glue penetration rate and inability to produce flat cords in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention is implemented using the following solution:

[0006] The present invention provides a device for adjusting the position of pre-deformed steel wire waveform in a cord, comprising a splitter disc and multiple adjustment mechanisms; the multiple adjustment mechanisms are circumferentially distributed on the splitter disc, each adjustment mechanism comprising a base and a movable guide wheel, the movable guide wheel being radially connected to the base along the splitter disc; the pre-deformed waveform steel wire is wound around the movable guide wheel to the twist point.

[0007] Furthermore, at least three regulating mechanisms are provided.

[0008] Furthermore, it also includes a slider and a groove, with the groove being formed in the base, the slider being slidably connected in the groove, and the movable guide wheel being fixedly installed on the slider.

[0009] Furthermore, it also includes a push rod, which is fixedly connected to the slider and extends out of the base.

[0010] Furthermore, it also includes a fixed guide wheel, which is fixedly installed on the base and placed on both sides of the movable guide wheel.

[0011] Furthermore, at least two guide wheels are provided.

[0012] Furthermore, the length of the waveform wire path that the adjustment mechanism can adjust is at least half the length of the waveform cycle.

[0013] The present invention also provides an adjustment method for the pre-deformed steel wire waveform position adjustment device in the cord, applied to the above-mentioned pre-deformed steel wire waveform position adjustment device in the cord, comprising:

[0014] Adjust the position of the moving guide wheel in the base of each adjustment mechanism on the distributor plate according to the expected cord structure.

[0015] Furthermore, when the required path length of the corrugated steel wire constituting the desired cord structure is short, the position of the moving guide wheel in the base in the corresponding adjustment mechanism is lowered;

[0016] When the required path length of the corrugated steel wire that forms the desired cord structure is long, the position of the moving guide wheel in the base in the corresponding adjustment mechanism is raised.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention adjusts the routing path of the steel wires from the pre-deformer to the twisting point, thereby changing the spatial position of the pre-deformed peaks or troughs on the constituent waveform steel wires in the cord, thus changing the structure of the cord, realizing the production of flat cord structure, and improving the adhesive penetration rate of the cord. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a device for adjusting the position of a pre-deformed steel wire waveform in a cord, provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the adjusting mechanism in the pre-deformed steel wire waveform position adjusting device in the cord provided in an embodiment of the present invention;

[0020] Figure 3 This is a structural schematic diagram of an existing cord manufacturing method provided by the present invention;

[0021] Figure 4 yes Figure 3 A schematic diagram of the paths of each waveform steel wire in the existing cord production method;

[0022] Figure 5 yes Figure 3 A schematic diagram of the desired cord structure according to the existing cord production method;

[0023] Figure 6 This is a schematic diagram of a second embodiment of a device for adjusting the position of a pre-deformed steel wire waveform in a cord, provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the morphology of the steel wires that make up the 0535HI cord provided in this embodiment of the invention after passing through the twisting point when the cord is produced in the existing cord production method.

[0025] Figure 8 This is a schematic diagram of the first morphology of the constituent steel wires after passing the twisting point when the pre-deformed steel wire waveform position adjustment device provided in the embodiment of the present invention is applied to 0535HI cord.

[0026] Figure 9 This is a schematic diagram of the second morphology of the constituent steel wires after passing the twisting point when the pre-deformed steel wire waveform position adjustment device provided in the embodiment of the present invention is applied to 0535HI cord.

[0027] Figure 10 This is a schematic diagram of a third embodiment of a device for adjusting the position of a pre-deformed steel wire waveform in a cord, provided by an embodiment of the present invention;

[0028] In the diagram: 1. Divider; 2. Adjustment mechanism; 3. Base; 4. Slider; 5. Top rod; 6. Slide groove; 7a. Moving guide wheel; 7b. Fixed guide wheel one; 7c. Fixed guide wheel two; 8. Wire feeding unit; 9. First guide mechanism; 10. Pre-deformer; 11. Corrugated steel wire; 12. Second guide mechanism; 13. Divider; 14. Twisting point; 15. Twisting machine. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Please see Figure 1 and Figure 2 This invention provides a device for adjusting the position of a pre-deformed steel wire waveform in a cord. The device consists of a splitter disc 1 and multiple adjustment mechanisms 2. The multiple adjustment mechanisms 2 are evenly distributed circumferentially on the splitter disc 1. The length of the waveform steel wire path that each adjustment mechanism can adjust is at least half the length of a waveform cycle. At least three adjustment mechanisms 2 are provided. Each adjustment mechanism 2 includes a base 3, a slider 4, a top rod 5, a groove 6, a movable guide wheel 7a, and multiple fixed guide wheels. The movable guide wheel 7a is radially connected to the base 3 along the splitter disc 1. Specifically, the groove 6 is opened in the base 3, the slider 4 is slidably connected in the groove 6, the movable guide wheel 7a is fixedly installed on the slider 4, the top rod 5 is fixedly connected to the slider 4 and extends out of the base 3, and the fixed guide wheels are fixedly installed on the base 3 and are placed on both sides of the movable guide wheel 7a. At least two fixed guide wheels are provided, namely fixed guide wheel one 7b and fixed guide wheel two 7c. The pre-deformed waveform steel wire 11 passes through the movable guide wheel 7a to the twist point 14.

[0033] The present invention also provides an adjustment method for the pre-deformed steel wire waveform position adjustment device in the cord, applied to the aforementioned pre-deformed steel wire waveform position adjustment device in the cord, comprising: adjusting the position of the moving guide wheel in the base of each adjustment mechanism on the distributor plate according to the expected cord structure, specifically: when the required path length of the waveform steel wire constituting the expected cord structure is short, lowering the position of the moving guide wheel in the base of the corresponding adjustment mechanism; when the required path length of the waveform steel wire constituting the expected cord structure is long, raising the position of the moving guide wheel in the base of the corresponding adjustment mechanism. Example 1:

[0034] The device and method for adjusting the position of the pre-deformed steel wire waveform in the cord are applied to the existing cord production method, and the specific details are as follows: Replacement Figure 3 The center-splitting device 13 is a device for adjusting the position of the pre-deformed steel wire waveform in the cord. The pre-deformed waveform steel wire 11 runs from the adjustment mechanism 2 on the splitter plate 1, and passes sequentially through the fixed guide wheel 7c, the movable guide wheel 7a, and the fixed guide wheel 7b. The slider 4 and the movable guide wheel 7a on it can adjust their positions under the action of the top rod 5. Specifically, when the movable guide wheel 7a is high, the winding length of the waveform steel wire 11 on it is long; when the movable guide wheel 7a is low, the winding length of the waveform steel wire 11 on it is short.

[0035] For ease of design, in this embodiment, the adjustable mechanism 2 can adjust the path length of the waveform steel wire 11 to at least satisfy the length of one waveform cycle. Thus, as... Figure 4 As shown, if the path length L1 of wire F1 is 10.3L (L is the period length of the wire waveform), and the path length L3 of wire F3 is 8.0L, then the length of path L1 can be adjusted to 10L or 11L by adjusting mechanism 2, while L3 remains unchanged; or the path length L1 can be kept constant, and the length of path L3 can be adjusted to 8.3L or 7.3L by adjusting mechanism 2. This ensures that the waveform spatial positions of each wire are arranged in an orderly manner when separated, and that when twisted into a single cord, the waveforms of each wire remain orderly within the cord, thus obtaining the desired flat cord structure (e.g., Figure 5 (As shown).

[0036] It should be understood that the above description is a theoretical explanation. In actual operation, the position of the twisting point 14 and the spatial position of the waveform of each pre-deformed waveform steel wire 11 in this bundle can be observed. In this way, the adjustment mechanisms 2 distributed on each steel wire path can be adjusted in a targeted manner. It is not necessary to actually measure the path length of each steel wire and then compare them. Example 2:

[0037] like Figure 6 As shown, in the existing 0535HI cord production process, there is no wire splitting device 13 during the production of this cord. The morphology of the five steel wires (F6, F7, F8, F9, and F10) after passing through the twisting point 14 can be understood as follows: Figure 7 As shown; when the pre-deformed steel wire waveform position adjustment device is applied to the splitter 13, after the five steel wires are deformed by the pre-deformer 10, five waveform steel wires 11 with identical deformed morphologies are obtained. Using the pre-deformed steel wire waveform position adjustment device, the morphology of the five steel wires after passing the twist point 14 can be understood as follows: Figure 8 or Figure 9As shown in the diagram; therefore, when the five steel wires are twisted together, the pre-deformation peaks of the five steel wires maintain the same spatial position within the cord. Since the pre-deformation peaks of the five steel wires are located at the same node, a larger gap is formed in the cord at that point, increasing the adhesive penetration rate and amount. In this case, the adhesive penetration rate of the cord can be stably maintained at 100%. Furthermore, in this embodiment, the adjustment amount of the path length by the adjustment mechanism 2 must satisfy ≥L, where L=3.3mm. Example 3:

[0038] like Figure 10 As shown, three steel wires F11, F12, and F13 with a diameter of 0.30 mm are deformed by the pre-deformer 10, resulting in discontinuous waveforms. The waveform length M is 5.5 mm, and the undeformed section is 2 M long, with a length of 11 mm. The waveforms of the three steel wires maintain a consistent spatial position in the horizontal direction. After passing through the pre-deformed steel wire waveform position adjustment device in the cord, the waveforms of the three steel wires are arranged sequentially after passing the twist point 14, achieving a uniform distribution along the cord's length. Compared to the conventional 0330 structure cord, this structure cord has a higher rubber permeability, avoiding enclosed spaces at the cord's center and maintaining higher durability. Furthermore, in this embodiment, the adjustment amount of the path length by the adjustment mechanism 2 must satisfy ≥3 M, where M = 5.5 mm.

[0039] In summary, this invention adjusts the routing path of the steel wires from the pre-deformer to the twisting point, thereby changing the spatial position of the pre-deformed peaks or troughs on the constituent waveform steel wires in the cord, thus altering the cord structure, achieving flat cord production, and improving the adhesive penetration rate of the cord.

[0040] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for adjusting the position of a pre-deformed steel wire waveform in a cord, characterized in that, It includes a wire distribution plate and multiple adjustment mechanisms; the multiple adjustment mechanisms are evenly distributed circumferentially on the wire distribution plate, each adjustment mechanism includes a base and a movable guide wheel, the movable guide wheel is connected in the base and moves radially along the wire distribution plate; the pre-deformed corrugated steel wire is wound around the movable guide wheel to the twist point; It also includes a slider and a slide groove. The slide groove is opened in the base, the slider is slidably connected in the slide groove, and the movable guide wheel is fixedly installed on the slider. It also includes a push rod, which is fixedly connected to the slider and extends out of the base; It also includes fixed guide wheels, which are fixedly installed on the base and placed on both sides of the movable guide wheels; The adjusting mechanism can adjust the length of the waveform wire path to be at least half the length of the waveform cycle.

2. The device for adjusting the position of the pre-deformed steel wire waveform in the cord according to claim 1, characterized in that, There are at least three regulating mechanisms.

3. The device for adjusting the position of the pre-deformed steel wire waveform in the cord according to claim 1, wherein at least two fixed guide wheels are provided.

4. A method for adjusting the position of a pre-deformed steel wire waveform in a cord, applied to the pre-deformed steel wire waveform position adjustment device according to any one of claims 1 to 3, characterized in that, include: Adjust the position of the moving guide wheel in the base of each adjustment mechanism on the distributor plate according to the expected cord structure.

5. The adjustment method of the pre-deformed steel wire waveform position adjustment device in the cord according to claim 4, characterized in that, Adjusting the position of the moving guide wheel in the base of each adjustment mechanism on the distributor plate according to the expected cord structure includes: When the required path length of the corrugated steel wire that constitutes the desired cord structure is short, the position of the moving guide wheel in the base in the corresponding adjustment mechanism is lowered. When the required path length of the corrugated steel wire that forms the desired cord structure is long, the position of the moving guide wheel in the base in the corresponding adjustment mechanism is raised.

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