Steel bar cold rolling on-line stress eliminating device

Abstract

The utility model discloses a reinforcing steel bar cold rolling on-line stress relieving device which comprises a rack and a group of guide sleeves fixedly embedded at two ends in the rack, and a stress relieving mechanism is arranged in the rack. The stress relieving mechanism comprises a group of opposite transverse rollers, a group of opposite vertical rollers, a group of opposite mounting seats, two groups of fixing rods, a group of servo cylinders, a group of swinging seats, a group of swinging brackets and a group of opposite swinging rollers. The utility model has the beneficial effects that through the stress relieving mechanism positioned in the rack, a group of opposite transverse rollers and a group of opposite vertical rollers are arranged vertically, and a group of servo cylinders can drive a group of opposite swinging rollers to deflect back and forth relatively, so that the stress relieving mechanism is in full contact with cold-rolled steel bars; and therefore, the internal stress of the cold-rolled steel bars can be fully released, and the internal stress of the cold-rolled steel bars can be removed more thoroughly.

Description

Technical Field

[0001] The utility model relates to the technical field of cold rolling of steel bars, in particular to an on-line stress elimination device for cold rolling of steel bars. Background Art

[0002] Cold-rolled steel bars are formed by subjecting hot-rolled wire rods to multi-pass cold rolling for diameter reduction, one-pass rib pressing and internal stress elimination, and are steel bars with two-sided or three-sided crescent shapes. Cold-rolled steel bars are a replacement product for cold-drawn low-carbon steel wires in prestressed concrete components. In cast-in-situ concrete structures, they can replace grade 1 steel bars to save steel, and are a relatively good type among similar cold-worked steel products.

[0003] Internal stress elimination of cold-rolled steel bars is achieved by arranging multiple round rollers in a staggered manner to change the running trajectory of the steel bars and realizing repeated bending, so as to release or reduce the internal stress of the steel bars. In the existing patent with the application number CN 201820765471.5, an on-line stress elimination device for cold rolling of steel bars is disclosed. The steel bars are bent in different directions under the action of horizontal rollers and vertical rollers, and the amount of bending can be adjusted at any time according to the situation, and the internal stress can be fully released, so that the cold-rolled steel bars have a better elongation effect. However, the use of horizontal rollers in cooperation with vertical rollers cannot be in full contact with the cold-rolled steel bars, resulting in only partial stress elimination of the cold-rolled steel bars, and the residual internal stress of the cold-rolled steel bars cannot be eliminated, and the internal stress elimination of the cold-rolled steel bars is not complete.

[0004] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model

[0005] In view of the above defects, the utility model provides an on-line stress elimination device for cold rolling of steel bars to solve the problem of on-line stress elimination of cold rolling of steel bars.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An on-line stress elimination device for cold rolling of steel bars includes a frame and a group of guide sleeves fixedly embedded at both ends inside the frame, and a stress elimination mechanism is arranged inside the frame;

[0008] The stress relief mechanism includes a set of opposing horizontal rollers, a set of opposing vertical rollers, a set of opposing mounting seats, two sets of fixed rods, a set of servo cylinders, a set of swing seats, a set of swing brackets, and a set of opposing swing rollers. A set of opposing horizontal rollers is movably installed on the left side inside the frame, a set of opposing vertical rollers is movably installed on the right side inside the frame, a set of opposing mounting seats is installed at the center inside the frame, two sets of fixed rods are respectively fixedly inserted on both sides of the upper ends of a set of opposing mounting seats, the bottom of a set of servo cylinders is hinged at the center of a set of opposing mounting seats, both sides of the bottom of a set of swing seats are movably installed on the upper ends of a set of opposing mounting seats, and the center of the bottom is respectively hinged to the telescopic ends of the corresponding servo cylinders. A set of swing brackets is installed on the upper ends of a set of swing seats, and a set of opposing swing rollers is movably installed inside a set of swing brackets.

[0009] Furthermore, a set of arc-shaped guide grooves are respectively formed on both sides of the bottom of a set of swing seats, and the inner ends of two sets of fixed rods are respectively slidably installed in the corresponding arc-shaped guide grooves through circular sliders.

[0010] Furthermore, a set of opposing horizontal rollers and a set of opposing vertical rollers are respectively installed inside the frame through roller brackets.

[0011] Furthermore, a set of opposing horizontal rollers and a set of opposing vertical rollers are arranged perpendicular to each other, and a set of opposing swing rollers is arranged obliquely.

[0012] Furthermore, the surfaces of a set of opposing horizontal rollers, a set of opposing vertical rollers, and a set of opposing swing rollers are concave curved surfaces.

[0013] The present utility model provides a cold rolling on-line stress relief device for steel bars, which has the following beneficial effects. Through the stress relief mechanism located inside the frame, a set of opposing horizontal rollers and a set of opposing vertical rollers are arranged perpendicular to each other, and a set of servo cylinders can drive a set of opposing swing rollers to reciprocate and deflect relatively, so as to fully contact the cold-rolled steel bars, change the running track of the steel bars to achieve repeated bending, and enable the internal stress of the cold-rolled steel bars to be fully released, making the internal stress removal of the cold-rolled steel bars more thorough. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the cold rolling on-line stress relief device for steel bars described in the present utility model.

[0015] Figure 2 It is a left-side side view of the installation of the swing rollers of the present utility model.

[0016] Figure 3 It is a right-side side view of the installation of the swing rollers of the present utility model.

[0017] Figure 4 It is a side view of the mounting seat described in the present utility model.

[0018] Figure 5 This is the side view of the swing seat of the present utility model.

[0019] In the figure: 1, frame; 2, guide sleeve; 3, horizontal roller; 4, vertical roller; 5, mounting seat; 6, fixed rod; 7, servo cylinder; 8, swing seat; 9, swing bracket; 10, swing roller; 11, arc-shaped guide groove; 12, circular slider; 13, roller bracket. Specific embodiments

[0020] The present utility model will be specifically described below in conjunction with the accompanying drawings. As Figures 1-5 shown: A device for online stress elimination of cold-rolled steel bars includes a frame 1 and a group of guide sleeves 2 fixedly embedded at both ends inside the frame 1. A stress elimination mechanism is provided inside the frame 1; the stress elimination mechanism includes a group of opposite horizontal rollers 3, a group of opposite vertical rollers 4, a group of opposite mounting seats 5, two groups of fixed rods 6, a group of servo cylinders 7, a group of swing seats 8, a group of swing brackets 9, and a group of opposite swing rollers 10. A group of opposite horizontal rollers 3 are movably installed on the left side inside the frame 1, a group of opposite vertical rollers 4 are movably installed on the right side inside the frame 1, a group of opposite mounting seats 5 are installed at the center inside the frame 1, two groups of fixed rods 6 are respectively fixedly inserted on both sides of the upper ends of a group of opposite mounting seats 5, the bottom of a group of servo cylinders 7 is hinged at the center of a group of opposite mounting seats 5, the two sides of the bottom of a group of swing seats 8 are movably installed on the upper ends of a group of opposite mounting seats 5, and the centers of the bottoms are respectively hinged to the telescopic ends of the corresponding servo cylinders 7. A group of swing brackets 9 are installed on the upper ends of a group of swing seats 8, and a group of opposite swing rollers 10 are movably installed inside a group of swing brackets 9; arc-shaped guide grooves 11 are respectively opened on both sides of the bottom of a group of swing seats 8, and the inner ends of the two groups of fixed rods 6 are respectively slidably installed in the corresponding arc-shaped guide grooves 11 through circular sliders 12; a group of opposite horizontal rollers 3 and a group of opposite vertical rollers 4 are respectively installed inside the frame 1 through roller brackets 13; a group of opposite horizontal rollers 3 and a group of opposite vertical rollers 4 are arranged perpendicular to each other, and a group of opposite swing rollers 10 are arranged obliquely; the surfaces of a group of opposite horizontal rollers 3, a group of opposite vertical rollers 4, and a group of opposite swing rollers 10 are concave curved surfaces.

[0021] Working principle of this implementation scheme: The electrical equipment used in this device is controlled by an external controller. During use, the user replaces the original stress elimination device with this stress elimination device and fixedly installs it in the cold rolling production line. A group of opposite horizontal rollers 3, a group of opposite vertical rollers 4, and a group of opposite swing rollers 10 are respectively adjusted towards the outer wall of the frame 1 through roller brackets 13 and a group of opposite mounting seats 5, facilitating the cold-rolled steel bars to pass through the front guide sleeve 2 of the device.

[0022] During stress relief: A set of opposing horizontal rollers 3 are movably installed on the left side inside the frame 1, a set of opposing vertical rollers 4 are movably installed on the right side inside the frame 1, a set of opposing mounting seats 5 are installed at the center inside the frame 1, two sets of fixed rods 6 are respectively fixedly inserted on both sides of the upper ends of a set of opposing mounting seats 5, the bottom of a set of servo cylinders 7 is hinged at the center of a set of opposing mounting seats 5, both sides of the bottom of a set of swing seats 8 are movably installed on the upper ends of a set of opposing mounting seats 5, and the centers of the bottoms are respectively hinged to the telescopic ends of the corresponding servo cylinders 7. A set of swing brackets 9 are installed on the upper ends of a set of swing seats 8, a set of opposing swing rollers 10 are movably installed inside a set of swing brackets 9. A set of arc-shaped guide grooves 11 are respectively formed on both sides of the bottom of a set of swing seats 8, and the inner ends of the two sets of fixed rods 6 are respectively slidably installed in the corresponding arc-shaped guide grooves 11 through circular sliders 12. A set of opposing horizontal rollers 3 and a set of opposing vertical rollers 4 are arranged perpendicular to each other, and a set of opposing swing rollers 10 are arranged obliquely. The surfaces of a set of opposing horizontal rollers 3, a set of opposing vertical rollers 4, and a set of opposing swing rollers 10 are concave curved surfaces, as Figure 2 — Figure 5 shown. A set of side plates are respectively installed on both sides of the upper ends of the mounting seats 5 and both sides of the bottom of the swing seats 8. When a set of servo cylinders 7 reciprocally expand and contract, they can drive a set of opposing swing rollers 10 to reciprocally deflect relative to each other through a set of swing seats 8. Combined with the perpendicular arrangement of a set of opposing horizontal rollers 3 and a set of opposing vertical rollers 4, they can come into full contact with the cold-rolled steel bars, thereby changing the running trajectory of the steel bars to achieve repeated bending, enabling the internal stress of the cold-rolled steel bars to be fully released, making the removal of internal stress of the cold-rolled steel bars more thorough. The arc-shaped guide grooves 11 and the circular sliders 12 can play a guiding role for the swing seats 8.

[0023] The above technical solution only reflects the preferred technical solution of the technical solution of the present utility model. Some changes that those skilled in the art of this technology may make to some parts thereof all reflect the principle of the present utility model and fall within the protection scope of the present utility model.

Claims

1. An on-line stress relieving device for cold rolling of steel bars, comprising a frame (1) and a set of guide sleeves (2) fixedly embedded at both ends inside the frame (1), characterized in that, A stress relief mechanism is provided inside the frame (1). The stress relief mechanism includes a set of opposite horizontal rollers (3), a set of opposite vertical rollers (4), a set of opposite mounting seats (5), two sets of fixed rods (6), a set of servo cylinders (7), a set of swing seats (8), a set of swing brackets (9), and a set of opposite swing rollers (10). A set of opposite horizontal rollers (3) are movably installed on the left side inside the frame (1), a set of opposite vertical rollers (4) are movably installed on the right side inside the frame (1), a set of opposite mounting seats (5) are installed at the center inside the frame (1), two sets of fixed rods (6) are respectively fixedly inserted on both sides of the upper ends of a set of opposite mounting seats (5), the bottom of a set of servo cylinders (7) is hinged at the center of a set of opposite mounting seats (5), the two sides of the bottom of a set of swing seats (8) are movably installed on the upper ends of a set of opposite mounting seats (5), and the centers of the bottoms are respectively hinged to the telescopic ends of the corresponding servo cylinders (7). A set of swing brackets (9) are installed on the upper ends of a set of swing seats (8), and a set of opposite swing rollers (10) are movably installed inside a set of swing brackets (9).

2. The on-line stress relieving device for cold rolling of steel bars according to claim 1, characterized in that, A set of arc-shaped guide grooves (11) are respectively formed on both sides of the bottom of a set of swing seats (8), and the inner ends of the two sets of fixed rods (6) are respectively slidably installed in the corresponding arc-shaped guide grooves (11) through circular sliders (12).

3. The on-line stress relief device for cold rolling of steel bars according to claim 1, characterized in that, A set of opposite horizontal rollers (3) and a set of opposite vertical rollers (4) are respectively installed inside the frame (1) through roller brackets (13).

4. A cold rolling on-line stress relieving device for steel bars according to claim 1, characterized in that, A set of opposite horizontal rollers (3) and a set of opposite vertical rollers (4) are arranged perpendicular to each other, and a set of opposite swing rollers (10) are arranged obliquely.

5. The on-line stress relieving device for cold rolling of steel bars according to claim 1, characterized in that, The surfaces of a set of opposite horizontal rollers (3), a set of opposite vertical rollers (4), and a set of opposite swing rollers (10) are concave curved surfaces.

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