Flat structure steel cord production defect detection device

Abstract

The invention relates to the technical field of steel cord production, in particular to a flat structure steel cord production defect detection device which comprises a feeding detection assembly, a flattening assembly and a discharging detection assembly which are sequentially arranged in the steel wire running direction. The steel wire has a circular section before entering the flat assembly, and forms a flat rectangular section after being extruded by the flat assembly. The feeding detection assembly is used for detecting and blocking the steel wire with the non-circular section, the discharging detection assembly is used for detecting and blocking the steel wire with the non-rectangular section, and therefore shape recognition of the steel wire before and after flattening machining is achieved. The flat assembly is composed of an installation shell, a flat wheel set and an adjusting rod, rolling wheels are arranged in an up-down staggered mode, and the adjusting rod is used for adjusting the extrusion gap. Real-time judgment of the section state of the steel wire is achieved through the front and back double detection structures, abnormal steel wires are prevented from flowing into or out of the flattening process, and the production stability and the finished product quality of the flat structure steel cord are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel cord production, and particularly relates to a flat-structure steel cord production defect detection device. BACKGROUND

[0002] As the reinforcing material of radial tire, the steel cord has a very important influence on the performance and service life of the tire. The premise of the steel cord playing a reinforcing role in the tire is effective adhesion with the tire rubber, so as to form a composite. In the early use of radial tires, people did not pay much attention to the early failure and failure form of the tire. With the development of science and technology and the progress of the tire industry, the competition among enterprises is increasingly fierce, and consumers and customers are increasingly intolerant of premature cord separation and rupture of the tire, which forces the tire industry to improve the performance of the tire. As an important part of the tire, the performance improvement of the skeleton material steel cord is imminent.

[0003] Compared with the conventional structure steel cord, the flat steel cord has higher openness, higher rubber penetration rate after vulcanization with the tire rubber, and does not form a cavity containing a closed space in the cord, so that the air is discharged more cleanly, and the probability of premature corrosion of the skeleton material steel cord during tire use is reduced. Unlike the conventional round structure steel cord, the flat structure steel cord needs a special production method due to its special structure, and the device used to prevent the flow of defects of the conventional round structure steel cord cannot be applied in the production process of the flat structure steel cord. How to detect defects in time during the production process of the flat structure steel cord is the key to ensure the quality stability of the flat structure steel cord.

[0004] In view of the above situation, in order to overcome the above technical problems, the present application designs a flat structure steel cord production defect detection device, which solves the above technical problems. SUMMARY

[0005] The technical purpose to be achieved by the present application is to provide a flat structure steel cord production defect detection device to solve the problem that effective defect detection cannot be achieved in the production process of the flat structure steel cord in the prior art.

[0006] In order to achieve the above technical purpose, the present application provides the following technical scheme: The application provides a flat structure steel cord production defect detection device, which comprises feeding detection components, a flattening component and discharging detection components which are sequentially arranged along the running direction of the steel wire; the steel wire is in a circular cross section before passing through the flattening component and is in a flat rectangular cross section after passing through the flattening component; the feeding detection components can pass through the steel wire in the circular cross section and block the steel wire in the non-circular cross section; the flattening component is used for extruding the steel wire; and the discharging detection components can pass through the steel wire in the rectangular cross section and block the steel wire in the non-rectangular cross section.

[0007] Preferably, the feeding detection components comprise a feeding blocking piece, a feeding pushing piece, a feeding opening and a feeding detection contact piece; the feeding blocking piece is fixedly arranged, the feeding pushing piece is arranged below the feeding blocking piece, the lower end of the feeding pushing piece is rotatably arranged, the upper end of the feeding pushing piece is movably arranged and is spliced with the lower end of the feeding blocking piece; the feeding opening is arranged at the splicing position of the feeding blocking piece and the feeding pushing piece; and the feeding detection contact piece is arranged on the side of the feeding pushing piece which is movable and is used for contacting the feeding pushing piece to conduct the alarm circuit.

[0008] Preferably, the feeding opening is composed of two semicircular openings which are arranged on the feeding blocking piece and the feeding pushing piece respectively; after the feeding pushing piece is rotated and spliced with the feeding blocking piece, the two openings form a circular feeding opening.

[0009] Preferably, the discharging detection components comprise a discharging blocking piece, a discharging pushing piece, a discharging opening and a discharging detection contact piece; the discharging blocking piece is fixedly arranged, the discharging pushing piece is arranged below the discharging blocking piece, the lower end of the discharging pushing piece is rotatably arranged, the upper end of the discharging pushing piece is movably arranged and is spliced with the lower end of the discharging blocking piece; the discharging opening is arranged at the splicing position of the discharging blocking piece and the discharging pushing piece; and the discharging detection contact piece is arranged on the side of the discharging pushing piece which is movable and is used for contacting the discharging pushing piece to conduct the detection circuit.

[0010] Preferably, the discharging opening is composed of two rectangular openings which are arranged on the discharging blocking piece and the discharging pushing piece respectively; after the discharging pushing piece is rotated and spliced with the discharging blocking piece, the two openings form a rectangular discharging opening.

[0011] Based on the above, further preferably, the pushing pieces have a rotating trend towards the moving direction of the steel wire, the blocking pieces are clamped with the pushing pieces through the thickness of the blocking pieces and are rotated towards the contact pieces through the gravity of the blocking pieces; the pushing pieces comprise the feeding pushing piece and the discharging pushing piece, the blocking pieces comprise the feeding blocking piece and the discharging blocking piece, and the contact pieces comprise the feeding contact piece and the discharging contact piece.

[0012] Preferably, the lower end of the pushing piece is provided with an elastic section; the elastic section extrudes the pushing piece through the upward elastic force, so that the movable pushing piece and the fixed blocking piece are clamped with each other.

[0013] The flat assembly includes a mounting housing, a flat wheel assembly, and an adjusting rod. The mounting housing is used to mount the flat wheel assembly, which consists of multiple rollers arranged in an alternating vertical arrangement. The adjusting rod is connected to the rollers below the flat wheel assembly and is used to adjust the vertical position of the rollers.

[0014] The beneficial effects of this invention are as follows: 1. This invention achieves automatic identification of the cross-sectional shape of the steel wire before and after flattening by sequentially setting up a feeding detection component, a flattening component, and a discharge detection component along the wire's running direction. The feeding detection component detects the continuity of circular cross-section steel wires, while the discharge detection component detects the shape of rectangular cross-section steel wires. This structure can promptly block non-circular cross-section steel wires before they enter the flattening component, preventing abnormal materials from entering the extrusion process; simultaneously, it blocks non-rectangular cross-section steel wires at the discharge end, preventing abnormally shaped steel wires from flowing out of the production line. Through the above detection and screening process, equipment damage and quality instability caused by cross-sectional abnormalities are effectively avoided, significantly improving the consistency and production safety of the flat-structure steel cord.

[0015] 2. This invention also incorporates an elastic section at the lower end of the paddle, allowing it to automatically engage with the baffle after being subjected to force through elastic reset. This, combined with the gravity of the baffle, enables a stable return to its original position towards the contact plate, thus maintaining the repeatability and sensitivity of the detection component during continuous wire operation. This enhances the stability and fatigue resistance of the detection component's mechanical structure, preventing paddle jamming or poor return caused by long-term operation, ensuring continuous and reliable detection, and further improving the device's long-term service life and ease of maintenance. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall production line according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the feed detection component according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the interaction between the paddle and the contact piece in an embodiment of the present invention; Figure 4 This is a schematic diagram of the discharge detection component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the flattened steel wire according to an embodiment of the present invention.

[0018] In the diagram: 1. Feed detection assembly; 11. Feed baffle; 12. Feed lever; 13. Feed inlet; 14. Feed detection contact; 2. Flat assembly; 21. Mounting housing; 22. Flat wheel assembly; 23. Adjusting rod; 3. Discharge detection assembly; 31. Discharge baffle; 32. Discharge lever; 33. Discharge inlet; 34. Discharge detection contact; 4. Steel wire; 5. Elastic section. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] Example 1: In this embodiment, as Figures 1-4 As shown, the defect detection device for flat structure steel cord production includes a feeding detection component 1, a flattening component 2, and an output detection component 3 arranged sequentially along the running direction of the steel wire 4. The cross-section of the steel wire 4 before entering the flattening component 2 is circular, and the cross-section at the output end is rectangular. The feeding detection component 1 is installed at the inlet of the straightener and is used to detect the cross-sectional shape of the circular steel wire 4 that has not undergone flattening treatment. It can allow the circular cross-section steel wire 4 to pass through while blocking the non-circular cross-section steel wire 4, ensuring that the steel wire 4 entering the flattening treatment stage has a standard shape. The output detection component 3 is installed at the outlet of the straightener and is used to detect the flattened steel wire 4. It can allow the standard rectangular cross-section steel wire 4 to pass through while blocking the non-rectangular cross-section steel wire 4, thereby preventing the poorly flattened or deformed steel wire 4 from flowing into subsequent production stages.

[0021] like Figure 1 As shown, the flattening component 2 is used to flatten and extrude the steel wire 4. It contains a flattening wheel assembly 22, which applies vertical extrusion force to the round steel wire 4 to form a rectangular cross-section structure. In this embodiment, a 5x0.30mm flattened steel cord is produced. The twist pitch T of the steel wire 4 is 15mm, and the diameter D of the steel wire 4 before flattening is 0.82mm. The opening size of the feed detection component 1's lever is designed to be 0.86mm, and its shape is circular.

[0022] like Figure 5 As shown, after flattening, the standard length of the major axis L of the steel wire 4 is 0.90mm, and the standard length of the minor axis H is 0.62mm. The opening shape of the discharge detection component 3 is rectangular, with a long side dimension of 0.945mm and a short side dimension of 0.650mm. By setting up dual detection components for feeding and discharging, the cross-sectional shape of the steel wire 4 can be determined in real time before and after entering the flattening process, preventing back wires or steel wires with unqualified cross-sections from mistakenly entering the next process, thus improving the consistency and stability of the finished steel cord.

[0023] In this embodiment, such as Figure 2 As shown, the feeding detection assembly 1 consists of a feeding baffle 11, a feeding lever 12, a feeding inlet 13, and a feeding detection contact 14. The feeding baffle 11 is fixedly mounted on the equipment frame. The feeding lever 12 is installed below the feeding baffle 11, with its lower end rotatably mounted via a pivot, and its upper end movable and spliced ​​with the lower end of the feeding baffle 11. The feeding inlet 13 is located at the splice between the feeding baffle 11 and the feeding lever 12, forming a combination structure of two semi-circular openings. When the lever rotates to splice with the baffle, the two semi-circular openings form a complete circular feeding inlet 13. The feeding detection contact 14 is installed on the movable side of the lever. When the lever is displaced by the passage of the steel wire 4, it contacts the contact, thereby activating the detection circuit. This structure allows the circuit to remain open when the circular steel wire 4 passes through normally. However, when the cross-section of the steel wire 4 is deformed or there is a back wire defect, the lever deflects abnormally and contacts the contact piece to conduct the circuit. The system then sends an abnormal signal, enabling rapid detection.

[0024] like Figure 4 As shown, the structure of the discharge detection component 3 is similar to that of the feed detection component 1, consisting of a discharge baffle 31, a discharge lever 32, a discharge port 33, and a discharge detection contact 34. The discharge baffle 31 is fixedly installed, and the discharge lever 32 is located below the baffle, with its lower end rotatably mounted and its upper end movable and spliced ​​with the lower end of the discharge baffle 31. The discharge port 33 is located at the splice between the baffle and the lever, and consists of two rectangular openings, one on the discharge baffle 31 and the other on the discharge lever 32. When the lever rotates and splices with the baffle, a rectangular through-hole is formed. The discharge detection contact 34 is located on the movable side of the lever and is used to detect the lever's displacement. When the cross-sectional shape of the steel wire 4 does not conform to the standard rectangular dimensions, the lever deflects and touches the contact, activating the alarm circuit and issuing an abnormal alarm signal.

[0025] like Figure 1 As shown, the flattening assembly 2 includes a mounting housing 21, a flattening wheel assembly 22, and an adjusting rod 23. The mounting housing 21 is used to mount the flattening wheel assembly 22, which consists of multiple rollers arranged in an alternating pattern. The relative compression of the upper and lower rollers applies a deformation force to the steel wire 4, causing the cross-section of the steel wire 4 to transition from a circle to a rectangle. The adjusting rod 23 is connected to the lower roller. The position of the upper and lower adjusting rods 23 can precisely control the compression gap, thereby achieving flattening control of steel cords of different specifications and ensuring the stability of the long and short axis dimensions after flattening. The paddles of the entire detection device have a natural rotational tendency along the direction of movement of the steel wire 4. The baffle limits and engages the paddles through its own thickness and maintains rotational balance towards the contact plate by its own weight.

[0026] Example 2: Flat steel cord with a 4x0.38 gauge and a twist pitch T of 18mm is produced. Before flattening, the diameter D of the steel wire 4 is 0.84mm. The opening size of the feed detection component 1 is 0.88mm, and its shape is circular. After flattening, the standard major axis L of the steel wire 4 is 0.95mm, and the standard minor axis H is 0.70mm. The opening shape of the discharge detection component 3 is rectangular, with a long side dimension of 1.00mm and a short side dimension of 0.735mm. This embodiment is structurally the same as Embodiment 1, except for the specifications of the steel wire 4 and the size of the detection opening. Through this detection device, the feed detection component 1 ensures that the roundness and smoothness of the steel wire 4 before flattening meet the process requirements, while the discharge detection component 3 verifies the geometric accuracy of the flattening process. The sensitive response of the detection components, combined with the electrical signal feedback system, enables real-time monitoring of the cross-sectional state of the steel wire 4, ensuring stable and reliable flattening processing.

[0027] It should be noted that the difference between this embodiment and Embodiment 1 lies in the different specifications of the produced steel wire 4. For steel wires 4 of different specifications, this embodiment requires cutting or replacing the feed inlet 13 and the discharge outlet 33. Specifically, in order to make the feed inlet 13 and the discharge outlet 33 adaptable to steel wires 4 of different specifications, the feed inlet 13 and the discharge outlet 33 adopt a replaceable solution. For ease of description, the feed inlet 13 will be used uniformly in the following description. The discharge outlet 33 is similar to the feed inlet 13, only the shape is different.

[0028] The feed baffle 11 and the feed lever 12 have large mounting openings at the original opening positions of the feed inlet 13. By installing splicing steel plates at the mounting openings, multiple steel plates are combined to form the feed inlet 13 at the corresponding mounting opening positions of the baffle and lever. In this way, if it is necessary to change the size of the feed inlet 13, it is only necessary to change the installation position of the steel plates to appropriately enlarge or reduce the feed inlet 13, thereby accommodating steel wires 4 of different sizes.

[0029] Alternatively, cuttable baffles and levers can be used, which can be flexibly cut according to the specifications of steel wire 4. However, it should be noted that cutting is only suitable for scenarios where the size of steel wire 4 decreases. Therefore, baffles and levers are replaceable and inexpensive materials. Levers only require modular installation of conductive trigger wires on the surface of inexpensive materials. When it is necessary to replace baffles and levers, only the entire baffle and lever need to be replaced, and then the shape of the inlet 13 or outlet 33 can be re-cut. The above only lists the solutions that can be implemented in this embodiment. The replacement solutions of the detection components in this embodiment are different solutions that can be adopted by those skilled in the art according to production needs to obtain the technical effects of the inlet detection component 1 and outlet detection component 3 in this embodiment.

[0030] Example 3: The lower end of the paddle has an elastic section 5 made of highly elastic metal material. This elastic section 5 generates an upward elastic force after the steel wire 4 passes through, applying a compressive force to the paddle and ensuring that the paddle and the stop plate remain tightly fitted after being subjected to force. When the steel wire 4 passes through, the paddle deflects under force. After the steel wire 4 passes through, the elastic section 5 provides a return force, causing the paddle to quickly return to its original position, ensuring a continuous and reliable engagement between the paddle and the stop plate.

[0031] It is worth noting that the defects in the production batch of steel wire 4 are due to errors in upstream equipment. Once the detection component of this embodiment responds, the production line needs to be inspected and adjusted. That is, the lever is triggered by steel wire 4, the lever rotates and falls to contact the contact piece, thereby triggering the alarm circuit. Thus, the production line is inspected and adjusted. The lever is reset manually by the operator. By rotating the lever, when the lever contacts the lower end of the baffle, the operator continues to press so that the lever uses its own thickness to squeeze into the lower end of the baffle. At this time, the elastic segment 5 at the lower end of the lever is compressed, and the lever and the baffle are joined together. The elastic segment 5 provides an upward elastic force so that the lever and the baffle are locked together, thus preparing for the next inspection.

[0032] The description herein is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

[0033] Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims.

[0034] The foregoing description is merely illustrative of this disclosure, and modifications may be made to the invention in light of the above detailed description. The terminology used in the appended claims should not be construed as limiting the invention to the specific embodiments disclosed in the specification. Rather, the scope of the invention will be fully defined by the appended claims, which will be interpreted according to established principles of claim interpretation.

Claims

1. A flat structure steel cord production defect detection device characterized by, The device comprises a feeding detection assembly (1), a flattening assembly (2) and a discharging detection assembly (3) arranged in sequence along the running direction of the steel wire (4); the steel wire (4) is circular in cross section before passing through the flattening assembly (2) and is flattened into a rectangular cross section after passing through the flattening assembly (2); the feeding detection assembly (1) can pass through the circular cross section steel wire (4) and block the non-circular cross section steel wire (4); the flattening assembly (2) is used for extruding the steel wire (4); the discharging detection assembly can pass through the rectangular cross section steel wire (4) and block the non-rectangular cross section steel wire (4).

2. The flat structure steel cord production defect detection apparatus according to claim 1, characterized in that: The feeding detection assembly (1) comprises a feeding baffle (11), a feeding pusher (12), a feeding port (13) and a feeding detection contact (14); the feeding baffle (11) is fixedly arranged, the feeding pusher (12) is arranged below the feeding baffle (11), the lower end of the feeding pusher (12) is rotatably arranged, the upper end is movably arranged and is connected with the lower end of the feeding baffle (11); the feeding port (13) is arranged at the joint of the feeding baffle (11) and the feeding pusher (12); the feeding detection contact (14) is arranged on the side of the feeding pusher (12) and is used for contacting the feeding pusher (12) to conduct the detection circuit.

3. The flat structure steel cord production defect detection apparatus according to claim 2, characterized in that: The feeding port (13) is composed of two semicircular openings, the semicircular openings are arranged on the feeding baffle (11) and the feeding pusher (12) respectively; after the feeding pusher (12) is rotated and connected with the feeding baffle (11), the two openings form a circular feeding port (13).

4. The flat structure steel cord production defect detection apparatus according to claim 2, characterized in that: The discharging detection assembly (3) comprises a discharging baffle (31), a discharging pusher (32), a discharging port (33) and a discharging detection contact (34); the discharging baffle (31) is fixedly arranged, the discharging pusher (32) is arranged below the discharging baffle (31), the lower end of the discharging pusher (32) is rotatably arranged, the upper end is movably arranged and is connected with the lower end of the discharging baffle (31); the discharging port (33) is arranged at the joint of the discharging baffle (31) and the discharging pusher (32); the discharging detection contact (34) is arranged on the side of the discharging pusher (32) and is used for contacting the discharging pusher (32) to conduct the alarm circuit.

5. The flat structure steel cord production defect detection apparatus according to claim 4, characterized in that: The discharging port (33) is composed of two rectangular openings, the rectangular openings are arranged on the discharging baffle (31) and the discharging pusher (32) respectively; after the discharging pusher (32) is rotated and connected with the discharging baffle (31), the two openings form a rectangular discharging port (33).

6. The flat structure steel cord production defect detection apparatus according to claim 3 or 5, characterized in that: The pushers have a tendency to rotate towards the movement direction of the steel wire (4), the baffle is clamped with the pusher through the thickness and is rotated towards the contact through the gravity; the pushers comprise the feeding pusher (12) and the discharging pusher (32), the baffle comprises the feeding baffle (11) and the discharging baffle (31), and the contact comprises the feeding contact and the discharging contact.

7. The flat structure steel cord production defect detection apparatus according to claim 6, characterized in that: The lower end of the pusher is provided with an elastic section (5); the elastic section (5) extrudes the pusher through the upward elastic force, so that the movable pusher and the fixed baffle are clamped with each other.

8. The flat structured steel cord production defect detection apparatus according to claim 1, characterized in that: The flat assembly (2) comprises a mounting shell (21), a flat wheel group (22) and an adjusting rod (23), the mounting shell (21) is used for mounting the flat wheel group (22), the flat wheel group (22) is composed of a plurality of upper and lower staggered arranged rollers; the adjusting rod (23) is connected with the rollers below the flat wheel group (22) and is used for adjusting the vertical position of the rollers.

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