Pneumatic brake device for steel cord take-up machine

Abstract

The utility model relates to the technical field of steel cord production, in particular to a pneumatic brake device for a steel cord take-up machine, which comprises a machine table, a transmission shaft is arranged on the machine table, a first end of the transmission shaft is connected with an I-shaped wheel, a second end of the transmission shaft is connected with a belt wheel, and a brake disc is arranged on one side of the belt wheel. The belt wheel, the brake disc and an I-shaped wheel connected to the transmission shaft are relatively fixed; the brake component is connected to the machine table; the brake component comprises a connecting plate, an air cylinder and a friction block. The brake device is made of standard parts which are easy to manufacture or universal, in the follow-up maintenance process, all accessories are easy to purchase and manufacture, all parts are fastened and assembled through bolts, the maintenance difficulty is low, quick-wear parts are easy to replace, the brake block applies pressure through the air cylinder, the braking effect is good, and good reliability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord production, and particularly relates to a pneumatic braking device for a steel cord take-up machine. Background Art

[0002] The principle of the take-up machine is that the motor drives the take-up shaft to rotate. The spool is sleeved on the take-up shaft and will rotate synchronously with the take-up shaft. As the take-up shaft and the spool rotate together, the steel cord on the spool is wound in a fixed direction under a certain tension. When the full spool stops, due to inertia, the spool will rotate in the reverse direction, which will affect the wire winding effect and pose a safety hazard. This requires the spool to stop rotating immediately when the motor stops. Therefore, a braking device is needed to prevent the spool from reversing.

[0003] The original take-up braking device uses an oil pressure butterfly brake to clamp a disc brake, clamping both sides of the brake disc. The whole structure of this product is complex, large in size and expensive. Due to the long operation time of the machine, the brake becomes aged, and if one of the brake parts breaks, it cannot work. At present, spare parts cannot be found in the market for replacement and it cannot be used.

[0004] Therefore, as a wearing part, it is very necessary to make the braking device easy to repair. Summary of the Utility Model

[0005] In view of the technical problems existing in the braking of the steel cord take-up machine in the prior art, the first aspect of the present utility model provides a pneumatic braking device for a steel cord take-up machine, including:

[0006] A machine table, on which a transmission shaft is provided. The first end of the transmission shaft is connected to a spool, and the second end is connected to a belt pulley. A brake disc is provided on one side of the belt pulley. The belt pulley, the brake disc and the spool connected to the transmission shaft are relatively fixed;

[0007] A braking component, connected to the machine table;

[0008] Wherein, the braking component includes a connecting plate, a cylinder and a friction block. The connecting plate is detachably connected to the surface of the machine table. The cylinder is connected to the connecting plate. The friction block is detachably connected to the output end of the cylinder. The cylinder includes a retracted position and an extended position. When the cylinder is in the extended position, the friction block is in close contact with the surface of the brake disc. When the cylinder is in the retracted position, the friction block is separated from the surface of the brake disc.

[0009] Preferably, the friction block is configured as a disc shape, and a groove is provided in the center of the friction block. The friction block is connected to the end of the telescopic rod of the cylinder through a bolt connected to the groove.

[0010] Preferably, screw holes are provided on the machine table, and the connecting plate is connected to the machine table through bolts, and the bolts are installed in the screw holes.

[0011] Preferably, a counterbore is provided on one end face of the connecting plate facing the machine table, and a bolt is provided in the counterbore, and the bolt is used to fix the cylinder to one end face of the connecting plate facing the brake disc.

[0012] Preferably, a strip-shaped groove is provided on the connecting plate, the setting direction of the strip-shaped groove is along the radial direction of the brake disc, at least two fastening bolts are provided in the strip-shaped groove, and screw holes corresponding to the fastening bolts are provided on the machine table.

[0013] Preferably, the connecting plate can move along the direction of the strip-shaped groove, so that the friction block moves to different radial positions of the brake disc.

[0014] Preferably, the diameter of the friction block is 4-5 cm, and the diameter of the brake disc is at least twice the diameter of the friction block.

[0015] Preferably, the stroke of the cylinder is less than 20 mm.

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] The brake device of the present utility model is made of easy-to-manufacture or common standard parts. During subsequent maintenance, each accessory is easy to purchase and manufacture. Each part is fastened and assembled by bolts, the maintenance difficulty is low, the vulnerable parts are easy to replace, the brake block is pressed by the cylinder, the achieved braking effect is good, and it has good reliability. Description of the Drawings

[0018] The drawings are not intended to be drawn to scale. In the drawings, each identical or approximately identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings, wherein:

[0019] Figure 1 is a schematic structural view of the pneumatic brake device for a steel cord take-up machine shown in the present utility model;

[0020] Figure 2 is a top view of the pneumatic brake device for a steel cord take-up machine shown in the present utility model;

[0021] Figure 3 is a schematic structural view of the connecting plate shown in the present utility model. Detailed Embodiments

[0022] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0023] Combination Figures 1 - 3 As shown, the first aspect of the utility model proposes a pneumatic brake device for a steel cord take-up machine, including a machine platform 10, a transmission shaft 11 and a brake component 20. The machine platform 10 is provided with a transmission shaft 11, the first end of the transmission shaft 11 is connected to an I-shaped wheel 12, and the second end is connected to a pulley 14. A brake disc 13 is provided on one side of the pulley 14, and the pulley 14, the brake disc 13 and the I-shaped wheel 12 connected to the transmission shaft 11 are relatively fixed.

[0024] A transmission belt is arranged outside the pulley 14, and is connected to the driving pulley of the driving motor through the transmission belt. The power is transmitted to the transmission shaft 11 through the belt transmission. The I-shaped wheel 12 at the other end of the transmission shaft 11 rotates coaxially, wherein the transmission shaft 11 is rotationally connected to the machine 10 through a sleeve, and the machine 10 provides support for the transmission shaft 11. The brake disc 13 is also coaxially connected to the transmission shaft 11. When friction is provided to the brake disc 13, transmission resistance is provided to the transmission shaft 11, so that the rotation speed of the transmission shaft 11 is reduced, thereby achieving braking.

[0025] Further, such as Figure 1 As shown, the brake component 20 is connected to the machine 10, and the brake component 20 includes a connecting plate 21, a cylinder 22 and a friction block 23. The connecting plate 21 is detachably connected to the surface of the machine 10, the cylinder 22 is connected to the connecting plate 21, and the friction block 23 is detachably connected to the output end of the cylinder 22. The cylinder 22 includes a retracted position and an extended position. When the cylinder 22 is in the extended position, the friction block 23 is in close contact with the surface of the brake disc 13. When the cylinder 22 is in the shortened position, the friction block 23 is separated from the surface of the brake disc 13.

[0026] In this way, the entire brake component 20 is divided into three parts, namely the connecting part, the driving part and the friction part. Among the three parts, the driving part is driven by a cylinder, and the friction part is driven by a friction block. Both the cylinder and the friction block are standard parts, which is convenient for procurement and maintenance after later damage. In addition, due to the small distance between the brake disc 13 and the machine 10, the air volume required for the use of a small-sized cylinder is small, and there is no need to increase the air volume of the system.

[0027] In an optional embodiment, the stroke of the cylinder 22 is less than 20 mm.

[0028] In a specific embodiment, the cylinder 22 is connected to the air source through two air pipes and a solenoid valve, and the conduction state of the two air pipes is controlled by the solenoid valve. When the first air pipe of the cylinder 22 is connected, the cylinder 22 is extended, and when the second air pipe is connected, the cylinder 22 is shortened, thereby realizing the control of the cylinder state.

[0029] In an optional embodiment, if Figure 3As shown, the friction block 23 is configured as a disc shape, with a groove provided in the center of the friction block 23. The friction block 23 is connected to the end of the telescopic rod of the cylinder 22 through a bolt connected to the groove.

[0030] In this way, when installing the friction block 23, the bolt is inserted into the groove, and the end of the bolt is connected to the front end of the telescopic rod of the cylinder 22, so that the friction block 23 and the telescopic rod are relatively fixed.

[0031] Preferably, a washer is provided between the friction block 23 and the telescopic rod. The rigidity of the washer is greater than that of the friction block 23. In this way, a better support is formed for the friction block 23.

[0032] Furthermore, in order to reliably fix the connecting plate 21 to the machine table 10, screw holes are provided on the machine table 10. The connecting plate 21 is connected to the machine table 10 through bolts, and the bolts are installed in the screw holes.

[0033] In this way, the connecting plate 21 is fixed to the machine table 10 through bolts, which is beneficial to the disassembly and installation of the braking device and reduces the maintenance difficulty of the braking device.

[0034] In an alternative embodiment, as Figure 3 shown, a strip-shaped groove 211 is provided on the connecting plate 21. The setting direction of the strip-shaped groove 211 is along the radial direction of the brake disc 13. At least two fastening bolts 212 are provided in the strip-shaped groove 211, and screw holes corresponding to the fastening bolts 212 are provided on the machine table 10.

[0035] In this way, by adjusting the tightness of the fastening bolts 212, the connecting plate 21 can move along the direction of the strip-shaped groove 211, so that the friction block 23 moves to different radial positions of the brake disc 13. That is, when a part of the brake disc 13 is worn more seriously, it can be adjusted to other positions to complete braking.

[0036] In an alternative embodiment, the diameter of the friction block 23 is 4 - 5 cm, and the diameter of the brake disc 13 is at least twice the diameter of the friction block 23.

[0037] Furthermore, a counterbore is provided on the end face of the connecting plate 21 facing the machine table 10. A bolt is provided in the counterbore, and the bolt is used to fix the cylinder 22 to the end face of the connecting plate 21 facing the brake disc 13.

[0038] By fixing the cylinder 22 to the connecting plate 21 in this way, the structure of the braking device can be made compact, and the disassembly and assembly of the cylinder 22 and the connecting plate 21 are facilitated.

[0039] Combined with the above embodiments, the brake device of the present utility model is made of standard parts that are easy to manufacture or common. During subsequent maintenance, each accessory is easy to purchase and manufacture. Each part is assembled by bolt fastening, with low maintenance difficulty and easy replacement of vulnerable parts. The brake block is pressurized by a cylinder, achieving a good braking effect and having good reliability.

[0040] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model pertains can make various modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to that defined by the claims.

Claims

1. A pneumatic brake device for a steel cord take-up machine, characterized in that: include: A machine platform (10), wherein a transmission shaft (11) is provided on the machine platform (10), a first end of the transmission shaft (11) is connected to an I-shaped wheel (12), and a second end is connected to a pulley (14), a brake disc (13) is provided on one side of the pulley (14), and the pulley (14), the brake disc (13) and the I-shaped wheel (12) connected to the transmission shaft (11) are relatively fixed; A brake component (20) connected to the machine platform (10); Wherein, the brake component (20) includes a connecting plate (21), a cylinder (22) and a friction block (23); the connecting plate (21) is detachably connected to the surface of the machine platform (10); the cylinder (22) is connected to the connecting plate (21); the friction block (23) is detachably connected to the output end of the cylinder (22); the cylinder (22) includes a retracted position and an extended position; when the cylinder (22) is in the extended position, the friction block (23) is in close contact with the surface of the brake disc (13); when the cylinder (22) is in the shortened position, the friction block (23) is detached from the surface of the brake disc (13).

2. The pneumatic brake device for a steel cord take-up machine according to claim 1, characterized in that: The friction block (23) is constructed in a disc shape, a groove is provided at the center of the friction block (23), and the friction block (23) is connected to the end of the telescopic rod of the cylinder (22) via a bolt connected to the groove.

3. The pneumatic brake device for a steel cord take-up machine according to claim 1, characterized in that: The machine platform (10) is provided with a screw hole, and the connecting plate (21) is connected to the machine platform (10) via a bolt, and the bolt is installed in the screw hole.

4. The pneumatic brake device for a steel cord take-up machine according to claim 1, characterized in that: The end surface of the connecting plate (21) facing the machine platform (10) is provided with a countersunk hole, and bolts are provided in the countersunk hole. The bolts are used to fix the cylinder (22) to the end surface of the connecting plate (21) facing the brake disc (13).

5. The pneumatic brake device for a steel cord take-up machine according to claim 3, characterized in that: The connecting plate (21) is provided with a strip groove (211), the arrangement direction of the strip groove (211) is along the radial direction of the brake disc (13), at least two fastening bolts (212) are arranged in the strip groove (211), and the machine platform (10) is provided with screw holes arranged corresponding to the fastening bolts (212).

6. The pneumatic brake device for a steel cord take-up machine according to claim 5, characterized in that: The connecting plate (21) can move along the direction of the strip groove (211), so that the friction block (23) moves to different radial positions of the brake disc (13).

7. The pneumatic brake device for a steel cord take-up machine according to claim 1, characterized in that: The diameter of the friction block (23) is 4 to 5 cm, and the diameter of the brake disc (13) is at least twice the diameter of the friction block (23).

8. The pneumatic brake device for a steel cord take-up machine according to claim 1, characterized in that: The stroke of the cylinder (22) is less than 20 mm.

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