Method for manufacturing online spliced belted layer

Abstract

According to the method for manufacturing the online spliced belted layer, the forming machine belted drum capable of rotating forwards and reversely is matched with the first cap strip winding head device and the second cap strip winding head device to alternately complete cap strip winding in respective strokes, so that high-cost input of a calender in a traditional mode can be omitted; the problem that a traditional cut-off knife cannot cut off special small angles (4-15 degrees) is solved. Forward and reverse rotation bidirectional winding of a forming machine belt drum is utilized to reduce idle stroke, and then winding efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of manufacturing belt layers for tires. In particular, it relates to a method for manufacturing a small-angle (such as 4° to 15°) belt layer by splicing steel cord crown strips or nylon crown strips online. Background Art

[0002] The small-angle belt layer is one of the important semi-finished products in the tire manufacturing process. The production of the small-angle belt layer generally first uses a calender to calender and coat steel wires or nylon threads to form a whole steel cord fabric or nylon cord fabric, and then uses a cutting knife to obliquely cut the steel cord fabric or nylon cord fabric according to the required angle and width, and after splicing and curling, it is supplied to the forming equipment. At this time, the joint angle of the belt layer is generally between 15° and 75°, but when the required angle is less than 15°, the traditional method of obliquely cutting the whole steel cord fabric or nylon cord fabric cannot be realized. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a method for manufacturing an online spliced belt layer, providing a forming machine belt drum that can rotate forward and backward, and arranging a first crown strip winding head device and a second crown strip winding head device on the outer side of the forming machine belt drum that can move along the axis of the forming machine belt drum. The specific steps are as follows: S1: Move the first crown strip winding head device and the second crown strip winding head device of the strip material close to the outer surface of the forming machine belt drum; S2: When the forming machine belt drum rotates forward at a first speed, the first crown strip winding head device moves along the first axis direction of the forming machine belt drum at a second speed, winds the first crown strip onto the surface of the forming machine belt drum at a first angle, and then cuts it off; S3: When the forming machine belt drum rotates backward at a first speed, the second crown strip winding head device moves along the second axis direction of the forming machine belt drum at a second speed, winds the second crown strip onto the surface of the forming machine belt drum at the same angle as the first crown strip, and then cuts it off. The first axis direction and the second axis direction are opposite directions; S4: Repeat the above steps S2 and S3, and wind a number of first crown strips and second crown strips on the surface of the forming machine belt drum at intervals; S5: Unload the spliced belt layer of a predetermined size and a predetermined angle from the surface of the forming machine belt drum.

[0004] Preferably, a feeding process is provided before the step S1: The front-end equipment respectively provides the first crown strip and the second crown strip online for the first crown strip winding head device and the second crown strip winding head device.

[0005] Preferably, the first crown strip winding head device and the second crown strip winding head device can move synchronously and rotate synchronously by a first angle.

[0006] Preferably, in step S2 or S3, the first crown strip winding head device and the second crown strip winding head device are first rotated synchronously by a first angle, so that the first crown strip and the second crown strip are wound around the surface of the forming machine belt drum at the first angle during their respective winding processes.

[0007] Preferably, in step S2 or S3, the forming machine belt drum can rotate a predetermined angle or rotate one full circle according to the size of the spliced belt layer.

[0008] Preferably, the first angle is the included angle formed between the first crown strip and the second crown strip and the circular cross-section of the forming machine belt drum respectively.

[0009] Preferably, the range of the first angle is between 4 degrees and 15 degrees.

[0010] Preferably, the linear speeds of the first crown strip and the second crown strip are between 100 millimeters per second and 500 millimeters per second.

[0011] Preferably, the number of steel wire strands or nylon strands provided in the first crown strip and the second crown strip ranges between 1 and 5.

[0012] Preferably, the width range of the first crown strip and the second crown strip is between 2 millimeters and 20 millimeters.

[0013] It can be seen from the above-disclosed technical content that in the present invention, the forming machine belt drum cooperates with the first crown strip winding head device and the second crown strip winding head device to alternately complete the winding of the crown strip in their respective strokes, which can realize the continuous winding of the crown strip and has high winding efficiency. Brief Description of the Drawings

[0014] Figure 1 It is a top view schematic diagram of the system for online splicing the belt layer of the present invention.

[0015] Figure 2 is Figure 1 a schematic diagram of the winding device in

[0016] Figure 3 It is a schematic diagram of the operation of winding the first crown strip T1 on the outer surface of the forming machine belt drum G of the present invention.

[0017] Figure 4 It is a schematic diagram of the operation of winding the second crown strip T2 on the outer surface of the forming machine belt drum G of the present invention.

[0018] Figure 5Schematic diagram of the operation of winding another first crown strip T3 on the outer surface of the belt drum G of the forming machine according to the present invention.

[0019] Figure 6 Schematic diagram of the operation of winding another second crown strip T4 on the outer surface of the belt drum G of the forming machine according to the present invention. Embodiment

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] Figure 1 Top view schematic diagram of the system for splicing belt layers online according to the present invention. The system includes a first crown strip feeding device 10 for supplying a first crown strip T1, a second crown strip feeding device 20 for supplying a second crown strip T2; a storage device 30 for temporarily storing the first crown strip T1 and the second crown strip T2; a winding device 40 provided with a first crown strip winding head device C1 and a second crown strip winding head device C2; and a forming machine belt drum G that can rotate forward and backward. Among them, the first crown strip and the second crown strip can be steel wire crown strips or nylon crown strips.

[0022] Figure 2 For Figure 1 Schematic diagram of the winding device. The winding device 40 includes a front-back moving device 41, a lateral moving device 42, an angle adjusting device 43, a first crown strip winding head device C1 and a second crown strip winding head device C2. The first crown strip winding head device C1 and the second crown strip winding head device C2 both include a feeding mechanism (not shown) for conveying the crown strip and a cutting mechanism (not shown) for cutting the crown strip. Among them, the front-back moving device 41 can drive the first crown strip winding head device C1 and the second crown strip winding head device C2 to move forward and backward simultaneously to approach or move away from the surface of the forming machine belt drum G; the lateral moving device 42 drives the first crown strip winding head device C1 and the second crown strip winding head device C2 to move laterally simultaneously; the angle adjusting device 43 can adjust the angle θ between the feeding mechanisms of the first crown strip winding head device C1 and the second crown strip winding head device C2 relative to the surface of the forming machine belt drum G simultaneously or at different times.

[0023] See Figures 1 to 6 As shown, the present invention discloses a method for manufacturing a belt layer with online splicing. A forming machine belt drum G that can rotate forward and backward is provided, and a first crown strip winding head device C1 and a second crown strip winding head device C2 that can move along the axis X of the forming machine belt drum are arranged outside the forming machine belt drum and driven by the lateral moving device 42. The specific steps are as follows: S1: Move the first crown strip winding head device C1 and the second crown strip winding head device C2 of the belt material (i.e. with the crown strip) to the outer surface of the belt drum G of the forming machine (such as Figure 2 as shown); S2: When the belt drum G of the forming machine rotates forward at a first speed (in the figure, forward rotation is represented by Z and reverse rotation is represented by S), the first crown strip winding head device C1 moves along the first axial direction D1 of the belt drum of the forming machine at a second speed (such as Figure 3 Moving from left to right as shown in the figure), the first crown strip T1 is wound onto the surface of the belt drum of the forming machine at a first angle θ and then cut; S3: When the forming machine belt drum G reverses at the first speed, the second crown strip winding head device C2 moves along the second axial direction D2 of the forming machine belt drum at the second speed (such as Figure 4 Moving from right to left as shown in the figure), the second crown band T2 is wound onto the surface of the belt drum of the forming machine at the same angle as the first crown band (i.e., the first angle θ) and then cut, and the first axial direction D1 and the second axial direction D2 are in opposite directions; S4: Repeat the above steps S2 and S3 to wind a plurality of first cap strips (T1, T3...Tn-1) and second cap strips (T2, T4...Tn) on the surface of the belt drum of the forming machine at intervals, wherein n is an even number greater than zero; S5: Unloading the spliced ​​belt layer of predetermined size and predetermined angle from the surface of the belt drum of the forming machine.

[0024] It should be noted that the first cap strip (T1, T3...Tn-1) and the second cap strip (T2, T4...Tn) are formed by continuous winding of the first cap strip winding head device C1 and the second cap strip winding head device C2, that is, when the forming machine belt drum G rotates forward at the first speed, the first cap strip (T1, T3...Tn-1) moves from point A to point B for winding, and then, when the forming machine belt drum G rotates reversely at the first speed, the second cap strip (T2, T4...Tn) moves from point C to point D for winding. Among them, the first cap strip (T1, T3...Tn-1) and the second cap strip (T2, T4...Tn) can be alternately wound in a closely arranged manner or alternately wound at a certain distance, so the above method can reduce the idle stroke of the first cap strip winding head device C1 and the second cap strip winding head device C2 moving back and forth, thereby improving the winding efficiency of the cap strip.

[0025] Before the step S1, an online feeding process is provided: that is, the first crown strip feeding device 10 and the second crown strip feeding device 20 respectively provide the first crown strip T1 and the second crown strip T2 online for the first crown strip winding head device C1 and the second crown strip winding head device C2. Among them, the first crown strip feeding device 10 and the second crown strip feeding device 20 can both be steel wire crown strip or nylon crown strip extrusion production lines to achieve online continuous feeding.

[0026] In addition, the first crown strip winding head device C1 and the second crown strip winding head device C2 can be synchronously moved and synchronously rotated to a first angle by the angle adjusting device 43. The first angle is the included angle θ between the feeding mechanisms in the first crown strip winding head device C1 and the second crown strip winding head device C2 and the surface of the forming machine belt drum G, that is, the first angle is the included angle formed between the first crown strip and the second crown strip and the circular cross-section of the forming machine belt drum respectively.

[0027] In the step S2 or S3, first, the first crown strip winding head device and the second crown strip winding head device are synchronously rotated to the first angle θ, so that the first crown strip and the second crown strip are wound around the surface of the forming machine belt drum at the first angle θ during their respective winding. That is to say, the first angle θ can be adjusted according to actual needs, and the adjustment range of the first angle is between 4 degrees and 15 degrees. In addition, in the step S2 or S3, the forming machine belt drum can rotate a predetermined angle or rotate one week according to the size of the spliced belt layer.

[0028] In addition, the linear speeds of the first crown strip and the second crown strip in the present invention are between 100 millimeters per second and 500 millimeters per second, the number of steel wire strands or nylon strands arranged in the first crown strip and the second crown strip is in the range of 1 to 5, and the width range of the first crown strip and the second crown strip is between 2 millimeters and 20 millimeters, and the winding effect and winding efficiency of the crown strip are better.

[0029] Compared with the method of obliquely cutting the whole steel wire cord or nylon cord in the background art, the present invention can save the high-cost investment of the calender and solve the problem that the traditional cutting knife cannot cut at a special small angle (4° to 15°). The forming machine belt drum winds the belt layer online, and the forward and reverse bidirectional winding of the forming machine belt drum reduces the idle stroke and improves the winding efficiency.

[0030] The above content is only part of the embodiments of the present application, and its purpose is to elaborate the technical concept and characteristics of the present application. Any equivalent changes or alternative technical solutions that are easily thought of by those skilled in the art under the inspiration of the technical content of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for making an online spliced ​​belt layer, providing a belt drum of a forming machine that can rotate forward and reverse, and arranging a first cap band winding head device and a second cap band winding head device that can move along the axis of the belt drum of the forming machine on the outer side of the belt drum of the forming machine, specifically comprising the following steps: S1: moving the first crown strip winding head device and the second crown strip winding head device of the strip material to the outer surface close to the belt drum of the forming machine; S2: when the belt drum of the forming machine rotates forward at a first speed, the first cap strip winding head device moves along the first axial direction of the belt drum of the forming machine at a second speed, winds the first cap strip onto the surface of the belt drum of the forming machine at a first angle, and then cuts it; S3: when the belt drum of the forming machine is reversed at a first speed, the second cap strip winding head device moves at a second speed along the second axial direction of the belt drum of the forming machine, winds the second cap strip onto the surface of the belt drum of the forming machine at the same angle as the first cap strip, and then cuts it, and the first axial direction and the second axial direction are opposite directions; S4: repeating the above steps S2 and S3, winding a plurality of first cap band strips and second cap band strips at intervals on the surface of the belt drum of the forming machine; S5: unloading the spliced ​​belt layer of a predetermined size and a predetermined angle from the surface of the belt drum of the forming machine.

2. The method for making an online spliced ​​belt layer according to claim 1, characterized in that: A material feeding process is provided before the step S1: the front-end equipment provides the first cap band strip and the second cap band strip to the first cap band strip winding head device and the second cap band strip winding head device online respectively.

3. The method for making an online spliced ​​belt layer according to claim 1, characterized in that: The first cap band winding head device and the second cap band winding head device can be synchronously moved and synchronously rotated to a first angle.

4. The method for making an online spliced ​​belt layer according to claim 3, characterized in that: In step S2 or S3, the first cap band strip winding head device and the second cap band strip winding head device are firstly synchronously rotated to a first angle, so that the first cap band strip and the second cap band strip are both wound onto the surface of the forming machine belt drum at the first angle when they are respectively wound.

5. The method for making an online spliced ​​belt layer according to claim 1, characterized in that: In step S2 or S3, the belt drum of the forming machine may rotate a predetermined angle or one circle according to the size of the spliced ​​belt layer.

6. The method for making an online spliced ​​belt layer according to any one of claims 1 to 5, characterized in that: The first angle is the angle formed between the first band strip and the second band strip and the circular cross section of the belt drum of the forming machine.

7. The method for making an online spliced ​​belt layer according to claim 6, characterized in that: The first angle ranges from 4 degrees to 15 degrees.

8. The method for making an online spliced ​​belt layer according to any one of claims 1 to 5, characterized in that: The linear speed of the first cap strip and the second cap strip is between 100 mm / s and 500 mm / s.

9. The method for making an online spliced ​​belt layer according to any one of claims 1 to 5, characterized in that: The number of steel wire strands or nylon wire strands arranged in the first crown strip and the second crown strip ranges from 1 to 5.

10. The method for making an online spliced ​​belt layer according to any one of claims 1 to 5, characterized in that: The width of the first cap strip and the second cap strip ranges from 2 mm to 20 mm.

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