Steel bar pay-off device

Abstract

A steel bar pay-off device comprises a base, a vertical plate is fixed to the upper portion of the base, a pay-off roller is rotationally arranged on one side of the vertical plate, and the vertical plate is perpendicular to the axis of the pay-off roller; a group of supporting rods with the same length are arranged outside the pay-off roller, the axes of the supporting rods are parallel to the axis of the pay-off roller, the supporting rods surround the pay-off roller by a circle to form a cylindrical structure, one end of the cylindrical structure is fixed to a right baffle, a through hole is formed in the center of the right baffle, and the other end of the cylindrical structure is fixed to a left baffle. The pay-off roller penetrates through the through hole and extends to the outer side of the left end of the cylindrical structure, the pay-off roller located on the outer side of the left end of the cylindrical structure forms a bearing roller, and the length of the bearing roller is equal to that of the supporting rod. When paying off is finished, the steel bars can continue to be released on the bearing roller under the action of elasticity and inertia, the steel bars cannot be scattered on the ground in a mess, and paying off can be conveniently conducted next time.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar production, in particular to a steel bar pay-off device. Background Art

[0002] Prestressed concrete steel bar (steel bar for short) is a kind of prestressed steel with high technical content, belonging to the middle strength level in the prestressed strength level. Due to its high strength toughness, low relaxation, strong bond with concrete, good weldability, upsetting and forging, material saving (such as φ11mm PC steel bar can replace φ20mm hot-rolled steel bar), it has been widely used in high-strength prestressed concrete centrifugal pipe piles, electric poles, viaduct piers, railway sleepers and other prestressed components abroad, and has a very broad market in the world, especially in Asia.

[0003] When using the current steel bar unwinding device, the active end of the steel bar needs to be pulled outward by hand to release the wound steel bar. When the steel bar is pulled to the required length, the pulling of the steel bar is stopped for subsequent quenching and shearing. At this time, the steel bar will continue to release several turns under the action of its own elasticity and inertia. The released steel bar has no receiving device and some will be scattered on the ground. This is the deficiency of the existing technology. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a technical solution of a steel bar pay-off device. The utility model can completely avoid the technical problem in the prior art that after the steel bar pay-off is completed, there is no receiving device to carry the steel bar due to continued release.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a steel bar pay-off device, comprising a base, a vertical plate is fixed on the upper part of the base, a pay-off roller is rotatably provided on one side of the vertical plate, and the vertical plate is perpendicular to the axis of the pay-off roller; a group of support rods of equal length are provided on the outside of the pay-off roller, the axes of the support rods are parallel to the axis of the pay-off roller, the support rods surround the pay-off roller to form a cylindrical structure, one end of the cylindrical structure is fixed to a right baffle, a through hole is provided at the center of the right baffle, the pay-off roller passes through the through hole and extends to the outside of the left end of the cylindrical structure, the pay-off roller located on the outside of the left end of the cylindrical structure constitutes a receiving roller, and the length of the receiving roller is equal to the length of the support rod.

[0006] A further improvement of the utility model is that a retaining ring is installed at the left end of the cylindrical structure.

[0007] A further improvement of the utility model is that a group of wedge-shaped blocks are arranged on the top of the receiving roller, and the wedge-shaped surfaces of the wedge-shaped blocks gradually rise from right to left.

[0008] A further improvement of the utility model is that protective strips are fixed on the upper part of the pay-off roller and on both sides of the stop block.

[0009] A further improvement of the present invention is that the cross section of the protection strip is cylindrical.

[0010] A further improvement of the utility model is that a triangular rib is arranged between the base and the mounting plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a pay-off roller and a group of cylindrically arranged support rods to wind and support the steel rod, and at the same time, the utility model is provided with a receiving roller at the left end of the pay-off roller, and the length of the receiving roller is twice the length of the support rod. In this way, at the end of pay-off, the steel rod will continue to be released from the receiving roller under the action of elasticity and inertia, and will not be scattered on the ground in a disorderly manner, which is convenient for the next pay-off. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model;

[0013] Figure 2 It is a cross-sectional view of the rotating roller of the utility model;

[0014] Among them: 1 is a protection strip, 2 is a pay-off roller, 3 is a wedge-shaped stopper, 4 is a retaining ring, 5 is a support rod, 6 is a bearing, 7 is a right baffle, 8 is a vertical plate, 9 is a rib plate, 10 is a base, and 11 is a receiving roller. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0016] A steel bar pay-off device comprises a base 10, a vertical plate 8 is fixed on the upper part of the base 10, a pay-off roller 2 is rotatably provided on one side of the vertical plate 8, and the vertical plate 8 is perpendicular to the axis of the pay-off roller 2; a group of support rods 5 of equal length are provided on the outside of the pay-off roller 2, the axes of the support rods 5 are parallel to the axis of the pay-off roller 2, the support rods 5 surround the pay-off roller 2 to form a cylindrical structure, one end of the cylindrical structure is fixed to a right baffle 7, a through hole is provided at the center of the right baffle 7, the pay-off roller 2 passes through the through hole and extends to the outside of the left end of the cylindrical structure, the pay-off roller 2 located on the outside of the left end of the cylindrical structure constitutes a receiving roller 11, and the length of the receiving roller 11 is equal to the length of the support rods 5.

[0017] The receiving roller 11 is a section of the pay-off roller 2 that extends outward. In this way, when the utility model finishes paying out the wire, the steel rod will continue to be released from the receiving roller 11 and wound around the receiving roller 11 under the action of elasticity and inertia, so the steel rod will not be scattered on the ground in a disorderly manner, which is convenient for paying out the wire next time.

[0018] The left end of the cylindrical structure is provided with a retaining ring 4. The retaining ring 4, the support rod 5 and the right baffle plate 7 are welded to form an integrated structure.

[0019] In order to reduce the amount of steel bars released on the receiving roller 11 after the wire is released, the utility model is provided with a group of wedge-shaped blocks 3 on the top of the receiving roller 11, and the wedge-shaped surface of the wedge-shaped blocks 3 gradually rises from right to left. In this way, the steel bars are blocked at the root of the wedge-shaped blocks 3; if they cannot be blocked, they are blocked by the next level of wedge-shaped blocks 3 on the left.

[0020] Since the pay-off roller 2 has a large diameter and high cost, it will often wear out during the steel rod release process. Therefore, the utility model fixes protective strips 1 on the upper part of the pay-off roller 2 and on both sides of the block. In this way, the released steel rod will first wear out the protective strips 1, and will not contact the pay-off roller 2, and will not wear out the pay-off roller 2.

[0021] Furthermore, the cross section of the protection strip 1 is cylindrical, or rectangular or square. The protection strip 1 is fixed to the pay-off roller 2 by welding. The protection strip 1 is fixed by welding along the axis of the pay-off roller 2.

[0022] Furthermore, the protection strips 1 are symmetrically arranged on both sides of the axis of the wedge-shaped stopper 3 .

[0023] Furthermore, the utility model can also set secondary protection strips on the opposite sides of the two protection strips 1. The cross-section of the secondary protection strip can be the same as the cross-section shape of the protection strip 1 or different, which can further protect the pay-off roller 2.

[0024] A triangular rib 9 is provided between the base 10 and the mounting plate, which increases the connection strength between the base 10 and the mounting plate.

[0025] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel bar pay-off device, comprising a base (10), characterized in that: A vertical plate (8) is fixed on the upper part of the base (10), and a pay-off roller (2) is rotatably arranged on one side of the vertical plate (8), and the vertical plate (8) is perpendicular to the axis of the pay-off roller (2); a group of support rods (5) of equal length are arranged outside the pay-off roller (2), and the axis of the support rods (5) is parallel to the axis of the pay-off roller (2), and the support rods (5) surround the pay-off roller (2) to form a cylindrical structure, one end of the cylindrical structure is fixed to the right baffle (7), and a through hole is arranged at the center of the right baffle (7), and the pay-off roller (2) passes through the through hole and extends to the outside of the left end of the cylindrical structure. The pay-off roller (2) located on the outside of the left end of the cylindrical structure constitutes a receiving roller (11), and the length of the receiving roller (11) is equal to the length of the support rod (5).

2. A steel bar pay-off device according to claim 1, characterized in that: A retaining ring (4) is installed at the left end of the cylindrical structure.

3. A steel bar pay-off device according to claim 1 or 2, characterized in that: A group of wedge-shaped blocks (3) are arranged on the top of the receiving roller (11), and the wedge-shaped surfaces of the wedge-shaped blocks (3) gradually rise from right to left.

4. A steel bar pay-off device according to claim 3, characterized in that: Protection strips (1) are fixed on the upper part of the pay-off roller (2) and on both sides of the stop block.

5. A steel bar pay-off device according to claim 4, characterized in that: The cross section of the protection strip (1) is cylindrical.

6. A steel bar pay-off device according to claim 1, characterized in that: A triangular rib plate (9) is provided between the base (10) and the mounting plate.

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