Engineering tire steel wire unwinding device

Abstract

The utility model provides an engineering tire steel wire unwinding device which solves the technical problems that a guide wheel of an existing steel wire unwinding machine cannot correspondingly move left and right back and forth along with the position, where a steel wire is led out, on a steel wire disc, so that the steel wire between the steel wire disc and the guide wheel is bent, and the quality of steel wire rings produced subsequently is affected. The device is provided with a support, a steel wire disc and a guide wheel, the support is connected with guide wheel sliding shafts, and the guide wheel sliding shafts are arranged on one side of the steel wire disc at intervals in parallel; the guide wheel is sleeved on the guide wheel sliding shaft, and the guide wheel and the guide wheel sliding shaft are in sliding connection in the axial direction of the guide wheel sliding shaft; an annular groove used for containing a steel wire is formed in the circumferential wall of the guide wheel and extends in the circumferential direction of the guide wheel. The device can be widely applied to the technical field of tire production equipment.

Description

Technical Field

[0001] The present application relates to the technical field of tire production equipment, and in particular to a steel wire guide device for an engineering tire. Background Art

[0002] Engineering tires are tires installed on large engineering vehicles such as dump trucks, bulldozers or loaders. The specifications of engineering tires are 36.00-51, and the diameter can reach 3.233 meters; the current specifications of engineering tires have reached 40.00-57. Different from load-carrying radial tires and passenger car tires, engineering tires have large specifications and slow speeds. They face extremely harsh working conditions and have high requirements for self-cleaning, load-bearing, puncture resistance and heat dissipation. Their formula, structure, preparation method, specifications and models are completely different from those of load-carrying radial tires and passenger car tires.

[0003] In the production process of engineering tires, the production quality of wire rings is very important for engineering tires, because wire rings are skeleton materials, and the function of wire rings is to maintain the tire and rim on the same rotating surface and firmly install the outer tire on the rim; and the specifications of engineering tires are very large, which requires higher quality of wire rings. The wire winding machine for producing wire rings is a single-machine equipment, and the wire ring guide machine guides the wire and supplies it to the wire winding machine to produce wire rings. Therefore, the quality of wire guide is very important. The invention with publication number CN103551474A discloses a wire ring guide machine, including a bracket and a plurality of support rods fixed at one end on the bracket, the other end of the support rod is provided with a guide wheel, and also includes a first cylinder whose cylinder body is relatively fixed to the bracket; a connecting rod fixedly connected to the telescopic end of the first cylinder, one end of the connecting rod is provided with a guide wheel, and the other end is provided with a brake device, and the brake device is provided with a brake pad that can contact the rotating shaft of the wire disk, and the telescopic end of the first cylinder can drive the brake device to rise and fall; a locking device for setting the rotating shaft of the wire disk on the bracket. The structural design of the wire ring guide machine can effectively avoid the problem of unstable wire tension and the problem of tangled wires.

[0004] However, if the invention is applied to the wire guide of the wire ring in the production of engineering tires, its technical defect is that due to the special requirements of engineering tire production, the wire disc used in its production is very wide. The wire disc currently used in the workshop is 310mm wide. In order to meet the growing demand for large-scale engineering tires, it is expected that wider wire discs will be used in the wire guide process. As the steel wire is drawn out from the wire disc and then continuously guided out through the guide wheel, the steel wire wound on the wire disc moves from the leftmost to the rightmost, and the extension of the telescopic end of the first cylinder drives the guide wheel on the connecting rod to rise or fall, and cannot move in the left and right directions, resulting in the inevitable bending of the steel wire between the wire disc and the guide wheel, resulting in uneven tension of the guided steel wire, which directly affects the quality of the subsequent steel rings produced. Summary of the invention

[0005] The purpose of the utility model is to solve the deficiencies of the above-mentioned technology and provide an engineering tire wire guide device, so that the guide wheel can move back and forth accordingly with the position of the wire led out on the wire disc, avoiding bending of the wire between the wire disc and the guide wheel, thereby ensuring the quality of the wire rings produced subsequently.

[0006] To this end, the utility model provides an engineering tire wire deflecting device, which is provided with a bracket, a wire disc, and a guide wheel. The bracket is connected to a guide wheel sliding shaft, and the guide wheel sliding shaft is arranged at a distance and in parallel on one side of the wire disc; the guide wheel is sleeved on the guide wheel sliding shaft, and the two are slidably connected in the axial direction of the guide wheel sliding shaft; the peripheral wall of the guide wheel is provided with an annular groove for accommodating the steel wire, and the annular groove extends along the circumferential direction of the guide wheel.

[0007] Preferably, the cross section of the annular groove is a V-shaped structure.

[0008] Preferably, the angle α between the groove wall of the annular groove and the guide wheel in the axial direction is 60° to 80°.

[0009] Preferably, the bracket is also connected to a floating wheel sliding shaft, the floating wheel sliding shaft is sleeved and connected to the floating wheel, and the two are slidingly connected in the axial direction of the floating wheel sliding shaft; the floating wheel is arranged below the guide wheel, and the two have the same structure; the two ends of the floating wheel sliding shaft are respectively hingedly connected to the bracket through floating rods.

[0010] Preferably, the floating wheel sliding axis is arranged in parallel with the guide wheel sliding axis.

[0011] Preferably, a rotating central axis is fixedly connected in the central hole of the wire disc, and the left and right ends of the rotating central axis respectively pass through the central hole and are rotatably connected to the bracket.

[0012] Preferably, the left and right ends of the rotating central axis are fixedly arranged on the left and right sides of the central hole of the wire disc through a first T-shaped shaft sleeve and a second T-shaped shaft sleeve respectively.

[0013] Preferably, a groove is provided on the left baffle plate of the wire disc, and a protrusion is provided on the shoulder of the first T-shaped sleeve, and the protrusion is adaptively connected to the groove.

[0014] Preferably, the rotating central axis is fixedly connected to the brake drum, part of the peripheral wall of the brake drum is frictionally connected to the brake pad, and one end of the brake pad is connected to the bracket; the other end of the brake pad is connected to one end of the brake lever, the other end of the brake lever is connected to the lower end of the spring, and the upper end of the spring is connected to the bracket; a brake link assembly is provided below the brake lever, and the brake link assembly includes a first link and a second link, one end of the first link is hingedly connected to the bracket, the other end of the first link is hingedly connected to one end of the second link, and the other end of the second link is hingedly connected to the rod body of the brake lever.

[0015] Preferably, one end of the brake pad is connected to the first ear plate through a tensioning bolt, and the first ear plate is connected to the bracket; the upper end of the spring is connected to the second ear plate through an adjusting bolt, and the second ear plate is connected to the bracket.

[0016] The beneficial effect of the utility model is that the utility model provides an engineering tire steel wire deflecting device, which is provided with a guide wheel, and the peripheral wall of the guide wheel is provided with an annular groove for accommodating the steel wire. While the guide wheel rotates driven by the steel wire, it slides back and forth left and right along the axial direction of the guide wheel sliding shaft, so that the guide wheel can move back and forth left and right accordingly with the position of the steel wire led out on the steel wire disc, avoiding bending of the steel wire between the steel wire disc and the guide wheel, thereby ensuring the quality of the steel wire ring produced subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 The structural diagram of the left view shown;

[0020] Figure 3 It is a structural schematic diagram of an exploded view of a wire disc fixing method;

[0021] Figure 4 It is a structural schematic diagram of an enlarged view of a wire sliding wheel sleeved and connected to a wire sliding shaft;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure of the enlarged view of part A shown;

[0023] Figure 6It is a structural schematic diagram of the left view of the wire reel;

[0024] Figure 7 It is a schematic diagram of the wire lead-out route of the utility model.

[0025] Markings in the figure:

[0026] 1. bracket, 2. wire disc, 3. guide wheel sliding shaft, 4. second ear plate, 5. adjusting bolt, 6. spring, 7. brake lever, 8. pin shaft, 9. first connecting rod, 10. brake pad, 11. brake drum, 12. tensioning bolt, 13. first ear plate, 14. protrusion, 15. guide wheel, 16. bearing, 17. positioning sleeve, 18. first T-type sleeve, 19. center hole, 20. second T-type sleeve, 21. nut, 22. second connecting rod, 23. rotating center axis, 24. groove, 25. annular groove, 26. floating wheel sliding shaft, 27. floating wheel, 28. floating rod, 29. steel wire, angle α is the angle between the groove wall of the annular groove 25 and the guide wheel 15 in the axial direction. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. The methods used in the present utility model are conventional methods unless otherwise specified; the raw materials and devices used are conventional commercial products unless otherwise specified.

[0028] Depend on Figure 1 , Figure 2 , Figure 4 , Figure 7 As shown, the utility model provides an engineering tire wire deflecting device, which is provided with a bracket 1, a wire drum 2, and a guide wheel 15. The bracket 1 is connected with a guide wheel sliding shaft 3, and the guide wheel sliding shaft 3 is arranged on one side of the wire drum 2 in parallel and spaced apart; the guide wheel 15 is sleeved on the guide wheel sliding shaft 3, and the two are slidably connected in the axial direction of the guide wheel sliding shaft 3; the peripheral wall of the guide wheel 15 is provided with an annular groove 25 for accommodating a steel wire 29, and the annular groove 25 extends along the circumferential direction of the guide wheel 15, usually forming a circle.

[0029] The utility model is used for the production of engineering tires, so the width of the wire disc 2 is relatively wide. Under the force of the steel wire 29 being led outward, the starting point position of the steel wire 29 led out from the steel disc 2 moves from the left side to the right side, and then moves from the right side to the left side, and moves back and forth, repeatedly, until the steel wire 29 is completely guided out of the steel disc 2. In this process, the peripheral wall of the guide wheel 15 is provided with an annular groove 25 for accommodating the steel wire 29. Driven by the steel wire 29, the groove wall of the annular groove 25 of the guide wheel is subjected to the pulling force from the steel wire 29, so that the guide wheel 15 slides back and forth left and right along the axial direction of the guide wheel sliding shaft 3 while rotating, and slides back and forth left and right accordingly as the initial position of the steel wire 29 led out from the steel disc 2 moves back and forth left and right, so as to avoid the bending phenomenon of the steel wire 29 between the steel disc 2 and the guide wheel 15, thereby ensuring the quality of the steel wire 29 circles produced later.

[0030] As a preferred embodiment, Figure 4 As shown, the cross section of the annular groove 25 is a V-shaped structure. During the left-right back-and-forth movement of the initial position of the steel wire 29 drawn out from the steel wire disc 2, the steel wire 29 contacts the corresponding inner wall of the V-shaped annular groove 25 and exerts a force. As a further preferred embodiment, Figure 5 As shown, the angle α between the groove wall of the annular groove 25 and the guide wheel 15 in the axial direction is 60° to 80°; this angle setting is more conducive to the steel wire 29 applying an axial force to the guide wheel 15.

[0031] As a preferred embodiment, Figure 1 , Figure 2 As shown, the bracket 1 is also connected with a floating wheel sliding shaft 26, and the floating wheel sliding shaft 26 is sleeved and connected with a floating wheel 27, and the two are slidably connected in the axial direction of the floating wheel sliding shaft 26; the floating wheel 27 is arranged below the guide wheel 15, and the two have the same structure; the two ends of the floating wheel sliding shaft 26 are respectively hingedly connected to the bracket 1 through a floating rod 28, so that the floating wheel 27 rotates around the hinge point between it and the bracket 1 through the floating rod 28 during the process of floating up and down. Figure 7As shown, during the production process, the steel wire 29 is led out from the steel wire drum 2, bypasses the guide wheel 15 from the top, and then bypasses the bottom of the floating wheel 27 and is led out upward; driven by the steel wire 29, the groove wall of the annular groove 25 of the floating wheel 27 is subjected to the tension from the steel wire 29, so that the floating wheel 27 slides back and forth left and right along the axial direction of the floating wheel sliding shaft 26 while rotating, and slides back and forth left and right accordingly as the guide wheel 15 slides back and forth left and right in the axial direction of the guide wheel sliding shaft 3; since the structure of the floating wheel 27 is the same as that of the guide wheel 15, its principle is also the same, which will not be repeated here. In addition, the steel wire 29 is guided upward after passing through the bottom of the floating wheel 27, so that the weight of the floating wheel 27 exerts a downward force on the steel wire 29, so that the steel wire 29 is always in a taut state; when the steel wire 29 suddenly starts or stops being guided out, and there is an instantaneous tension change, the floating wheel 27 rotates with the hinge point of the floating rod 28 and the bracket 1 as the axis, and makes an upward or downward movement, ensuring that the steel wire 29 is always in a stable state during the guiding process. As a further preferred embodiment, the floating wheel sliding shaft 26 is arranged in parallel with the guide wheel sliding shaft 3, ensuring that the floating wheel 27 slides back and forth in the axial direction of the floating wheel sliding shaft 26 more smoothly.

[0032] As a preferred embodiment, Figure 1 , Figure 3 As shown, a rotating central shaft 23 is fixedly connected in the central hole 19 of the wire disc 2, and the left and right ends of the rotating central shaft 23 respectively pass through the central hole 19 and are rotatably connected to the bracket 1; the rotating connection device usually adopts a bearing 16 seat provided with a bearing 16. As a further preferred embodiment, Figure 3 As shown, the left and right ends of the rotating central shaft 23 are fixedly arranged on the left and right sides of the central hole 19 of the wire disc 2 through the first T-shaped shaft sleeve 18 and the second T-shaped shaft sleeve 20 respectively. In addition, the bearing 16 on the left side is arranged on the outside of the first T-shaped shaft sleeve 18, and a positioning shaft sleeve 17 is preferably arranged between the two for positioning between the components; the right side of the second T-shaped shaft sleeve 20 is preferably fixed with a nut 21 to ensure that the rotating central shaft 23 does not move left and right in the central hole 19 of the wire disc 2. As a further preferred embodiment, by Figure 3 , Figure 6 As shown, a groove 24 is provided on the left baffle of the wire drum 2, and a protrusion 14 is provided on the shoulder of the first T-shaped shaft sleeve 18. The protrusion 14 is adapted to be connected with the groove 24, so that the wire drum 2 is more stably and firmly connected with the rotating central axis 23.

[0033] As a preferred embodiment, Figure 1 , Figure 2As shown, the rotating central axis 23 is fixedly connected to the brake drum 11, part of the peripheral wall of the brake drum 11 is frictionally connected to the brake pad 10, and one end of the brake pad 10 is connected to the bracket 1. The preferred connection method is: one end of the brake pad 10 is connected to the first ear plate 13 through the tensioning bolt 12, and the first ear plate 13 is connected to the bracket 1; the other end of the brake pad 10 is connected to one end of the brake lever 7, the other end of the brake lever 7 is connected to the lower end of the spring 6, and the upper end of the spring 6 is connected to the bracket 1. The preferred connection method is: the upper end of the spring 6 is connected to the second ear plate 4 through the adjusting bolt 5, and the second ear plate 4 is connected to the bracket 1; a brake connecting rod assembly is provided below the brake lever 7, and the brake connecting rod assembly is provided with a first connecting rod 9 and a second connecting rod 22, one end of the first connecting rod 9 is hingedly connected to the bracket 1, and the other end of the first connecting rod 9 is hingedly connected to one end of the second connecting rod 22; the other end of the second connecting rod 22 is hingedly connected to the rod body of the brake lever 7, and the hinged connection method can adopt the method of a pin 8. Through the lever principle, a spring 6, a brake lever 7, and a brake connecting rod assembly are used to apply a preload force to the brake pad 10. When the wire disc 2 starts or stops instantly, it is ensured that the brake pad 10 is always in friction connection with the brake drum 11, so that the wire 29 is always in a stable state.

[0034] It should be noted that:

[0035] 1. After the steel wire 29 is led outward from the steel wire drum 2, it is connected to the steel wire winding machine for subsequent production of steel wire rings. During the process of winding and producing steel wire rings, the steel wire winding machine drives the steel wire drum 2 to rotate by pulling the steel wire 29.

[0036] 2. Since the wire drum 2 is relatively wide, the wire 29 pre-wound on the wire drum 2 is wound in such a way that the wire 29 is wound from the left side of the wire drum 2 to the right side, and then from the right side to the left side, repeatedly, until the wire 29 is completely wound on the wire drum 2. Therefore, when the wire drum 2 rotates to lead out the wire 29, the wire 29 at the starting point of the wire drum 2 is led outward from the left side of the wire drum 2 to the right side, and then from the right side to the left side, repeatedly, until the wire 29 is completely led out of the wire drum 2.

[0037] 3. When developing the utility model, the use of cylinder brake drum 11 was also considered. However, it failed and could not be used after just over a month. After analysis, the main reason for the failure was that the process of preparing engineering tire wire rings was different from that of other tires. Through field practice, the spring 6 adopts the lever principle and is frictionally connected to the brake drum 11 through the brake pad 10, which is durable.

[0038] In the description of the present utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. It should be noted that in the above-mentioned embodiments, the "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent a sequential order of execution, but are merely for the convenience of description.

[0039] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, for example, the present utility model is not only applicable to the production of engineering tires, but also to the production of other tires, should be included in the scope of protection of the present application.

Claims

1. An engineering tire wire guide device, comprising a bracket (1), a wire disc (2), and a guide wheel (15), characterized in that: The bracket (1) is connected to a guide wheel sliding shaft (3), and the guide wheel sliding shaft (3) is arranged at a distance and in parallel on one side of the wire disc (2); the guide wheel (15) is sleeved on the guide wheel sliding shaft (3), and the two are slidably connected in the axial direction of the guide wheel sliding shaft (3); the peripheral wall of the guide wheel (15) is provided with an annular groove (25) for accommodating the steel wire (29), and the annular groove (25) extends along the circumferential direction of the guide wheel (15).

2. The engineering tire wire guide device according to claim 1, characterized in that: The cross section of the annular groove (25) is a V-shaped structure.

3. The engineering tire wire guide device according to claim 2, characterized in that: An included angle α between the groove wall of the annular groove (25) and the guide wheel (15) in the axial direction is 60° to 80°.

4. An engineering tire wire guide device according to any one of claims 1 to 3, characterized in that: The support (1) is also connected to a floating wheel sliding shaft (26), the floating wheel sliding shaft (26) is sleeved and connected to a floating wheel (27), and the two are slidably connected in the axial direction of the floating wheel sliding shaft (26); the floating wheel (27) is arranged below the guide wheel (15), and the two have the same structure; and both ends of the floating wheel sliding shaft (26) are respectively hingedly connected to the support (1) via floating rods (28).

5. The engineering tire wire guide device according to claim 4, characterized in that: The floating wheel sliding shaft (26) is arranged in parallel with the guide wheel sliding shaft (3).

6. The engineering tire wire guide device according to claim 1, characterized in that: A rotating central shaft (23) is fixedly connected inside the central hole (19) of the wire disc (2), and the left and right ends of the rotating central shaft (23) respectively pass through the central hole (19) and are rotatably connected to the bracket (1).

7. The engineering tire wire guide device according to claim 6, characterized in that: The left and right ends of the rotating central shaft (23) are respectively fixedly arranged on the left and right sides of the central hole (19) of the wire disc (2) through a first T-shaped shaft sleeve (18) and a second T-shaped shaft sleeve (20).

8. The engineering tire wire guide device according to claim 7, characterized in that: A groove (24) is provided on the baffle of the wire disc (2), and a protrusion (14) is provided on the shoulder of the first T-shaped shaft sleeve, wherein the protrusion (14) is adapted to be connected with the groove (24).

9. The engineering tire wire guide device according to claim 1, characterized in that: The rotating central axis (23) is fixedly connected to the brake drum (11), part of the peripheral wall of the brake drum (11) is frictionally connected to the brake pad (10), and one end of the brake pad (10) is connected to the bracket (1); the other end of the brake pad (10) is connected to one end of the brake lever (7), the other end of the brake lever (7) is connected to the lower end of the spring (6), and the upper end of the spring (6) is connected to the bracket (1); a brake connecting rod assembly is provided below the brake lever (7), and the brake connecting rod assembly includes a first connecting rod (9) and a second connecting rod (22), one end of the first connecting rod (9) is hingedly connected to the bracket (1), the other end of the first connecting rod (9) is hingedly connected to one end of the second connecting rod (22), and the other end of the second connecting rod (22) is hingedly connected to the rod body of the brake lever (7).

10. The engineering tire wire guide device according to claim 9, characterized in that: One end of the brake pad (10) is connected to a first ear plate (13) via a tensioning bolt (12), and the first ear plate (13) is connected to the bracket (1); the upper end of the spring (6) is connected to a second ear plate (4) via an adjusting bolt (5), and the second ear plate (4) is connected to the bracket (1).

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