Steel bar stretching device
By combining mechanical straightening and thermal annealing, the problem of internal stress not being eliminated after straightening of the steel bar is solved, and the straightness and performance of the steel bar are improved.
Patent Information
- Application Number
- CN202422225447.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-11
AI Technical Summary
In the prior art, after the steel bar is straightened by mechanical force, the internal stress is not eliminated, resulting in the steel bars being easily rebounded or cracked after being placed, which reduces physical properties.
The steel bars are straightened by mechanical straightening structure and thermal annealing structure by mechanical force, and internal stress is eliminated during the annealing process to maintain the straight state of the steel bars.
Effectively eliminate internal stress of steel bars, prevent rebound and cracks, and improve the physical properties of steel bars.
Smart Images
Figure CN223234950U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bar processing, in particular to a steel bar stretching device. Background Art
[0002] Wire rod, also known as wire, usually refers to small-diameter steel bars in coils. The diameter of wire rod ranges from 5 to 19 mm, with the lower limit being the minimum cross-section size of hot-rolled steel. High-strength prestressed steel bars are an economical and efficient steel material with high tensile and yield strengths, good plasticity, and low relaxation properties. They are widely used in the construction of cement products, bridges, nuclear power plants, high-rise, large-span buildings, highways, and other areas.
[0003] When using steel bars, the bent steel bars need to be straightened, and this straightening work is usually done by applying external mechanical force. Since it is only straightened by external force, the stress inside the steel bar is still there. After being placed for a long time, the steel bar will rebound or even cracks will appear inside the steel bar, which will lead to a decrease in the physical properties of the steel bar. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a steel bar stretching device.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A steel bar stretching device comprises: a chassis, a collecting seat and a stretching seat, the collecting seat being mounted on the upper wall of the chassis, the stretching seat being mounted on the upper wall of the chassis, the upper wall of the stretching seat being mounted with a mechanical straightening structure, the upper wall of the stretching seat being mounted with a thermal annealing structure, the upper wall of the stretching seat being mounted with an annealing straightening structure, and the upper wall of the collecting seat being mounted with a collecting structure; the mechanical straightening structure comprises: two mechanical fixed seats, two mechanical guide rollers, two mechanical movable seats, two mechanical movable rollers and two mechanical springs; the two mechanical fixed seats are respectively mounted on the upper wall of the stretching seat, the two mechanical guide rollers are respectively fixedly mounted inside the mechanical fixed seats, the two mechanical movable seats are respectively mounted on the upper wall of the stretching seat, the two mechanical movable rollers are respectively movably mounted inside the mechanical movable seats, and the two mechanical springs are respectively mounted between the mechanical movable rollers and the mechanical movable seats.
[0007] The utility model is further configured as a thermal annealing structure comprising: an annealing through tube and an annealing electromagnetic heating tube; the annealing through tube is installed on the upper wall of the stretching seat through a bracket, and the annealing electromagnetic heating tube is installed on the outside of the annealing through tube.
[0008] The utility model is further configured such that the annealing and straightening structure includes: eight annealing and straightening seats and eight annealing and straightening rollers; the eight annealing and straightening seats are respectively installed on the upper wall surface of the stretching seat, and the eight annealing and straightening rollers are respectively fixedly installed inside the annealing and straightening seats.
[0009] The utility model is further configured as a collection structure including: a collection base, a collection shaft and a collection top plate; the collection base is installed on the upper wall of the collection seat, the collection shaft is installed on the upper wall of the collection base, and the collection top plate is movably sleeved on the upper wall of the collection shaft.
[0010] The utility model is further configured that the annealing through pipe is a stainless steel pipe.
[0011] The utility model is further configured to have eight annealing and straightening seats, four of which form a group, and two groups of the annealing and straightening seats are mounted on the upper wall of the stretching seat in a symmetrical positional relationship.
[0012] The beneficial effects of the present invention are as follows: the present invention straightens the steel bars by means of mechanical external force and heat treatment, which not only straightens the steel bars, but also eliminates internal stress of the steel bars under the action of heat treatment, avoids cracks inside the steel bars, and keeps the steel bars straight to prevent rebound, and can also improve the physical properties of the steel bars to a certain extent.
[0013] The steel bar stretching device is provided with a mechanical straightening structure, which can straighten the bent steel bars. Under the action of mechanical force, the bent steel bars can be straightened, making it convenient to carry out the next step of work.
[0014] The steel bar stretching device is provided with a thermal annealing structure, which can anneal the straightened steel bars, thereby not only eliminating the stress inside the steel bars, but also keeping the steel bars straight and having better physical properties.
[0015] The steel bar stretching device is provided with an annealing and straightening structure, which can keep the heated steel bars in a straight state, thereby facilitating heat dissipation of the hot steel bars. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a steel bar stretching device proposed in the utility model;
[0017] Figure 2 This is a schematic diagram of the mechanical straightening structure of a steel bar stretching device proposed in the utility model;
[0018] Figure 3 This is a schematic diagram of the annealing and straightening structure of a steel bar stretching device proposed in the utility model;
[0019] Figure 4 This is a schematic diagram of the collection structure of a steel bar stretching device proposed in the utility model.
[0020] In the figure: 1. Chassis; 2. Collection seat; 3. Stretching seat; 4. Mechanical fixing seat; 5. Mechanical guide roller; 6. Mechanical movable seat; 7. Mechanical movable roller; 8. Mechanical spring; 9. Annealing through tube; 10. Annealing electromagnetic heating tube; 11. Annealing straightening seat; 12. Annealing straightening roller; 13. Collection base; 14. Collection shaft; 15. Collection top plate. DETAILED DESCRIPTION
[0021] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0022] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0023] Reference Figure 1-4 A steel bar stretching device comprises: a chassis 1, a collecting seat 2 and a stretching seat 3, the collecting seat 2 is mounted on the upper wall of the chassis 1, the stretching seat 3 is mounted on the upper wall of the chassis 1, the upper wall of the stretching seat 3 is mounted with a mechanical straightening structure, the upper wall of the stretching seat 3 is mounted with a thermal annealing structure, the upper wall of the stretching seat 3 is mounted with an annealing straightening structure, and the upper wall of the collecting seat 2 is mounted with a collecting structure; the mechanical straightening structure comprises: two mechanical fixed seats 4, two mechanical guide rollers 5, two mechanical movable seats 6, two mechanical movable rollers 7 and two mechanical Spring 8; two mechanical fixed seats 4 are respectively installed on the upper wall of the stretching seat 3, two mechanical guide rollers 5 are respectively fixedly installed inside the mechanical fixed seats 4, two mechanical movable seats 6 are respectively installed on the upper wall of the stretching seat 3, two mechanical movable rollers 7 are respectively movably installed inside the mechanical movable seats 6, and two mechanical springs 8 are respectively installed between the mechanical movable rollers 7 and the mechanical movable seats 6. The mechanical straightening structure can straighten the bent steel bars. Under the action of mechanical force, the bent steel bars can be straightened, which is convenient for the next step of work.
[0024] Specifically, the thermal annealing structure includes: an annealing through tube 9 and an annealing electromagnetic heating tube 10; the annealing through tube 9 is installed on the upper wall of the stretching seat 3 through a bracket, and the annealing electromagnetic heating tube 10 is installed on the outside of the annealing through tube 9. The annealing through tube 9 is a stainless steel tube. The thermal annealing structure can anneal the straightened steel bars, which can not only eliminate the stress inside the steel bars, but also keep the steel bars straight and have better physical properties.
[0025] Specifically, the annealing and straightening structure includes: eight annealing and straightening seats 11 and eight annealing and straightening rollers 12; the eight annealing and straightening seats 11 are respectively installed on the upper wall of the stretching seat 3, and the eight annealing and straightening rollers 12 are respectively fixedly installed inside the annealing and straightening seats 11. The eight annealing and straightening seats 11 are grouped into four, and two groups of annealing and straightening seats 11 are installed on the upper wall of the stretching seat 3 in a symmetrical position relationship. The annealing and straightening structure can keep the heated steel bars in a straight state, thereby facilitating heat dissipation of the hot steel bars.
[0026] Specifically, the collection structure includes: a collection base 13, a collection shaft 14 and a collection top plate 15; the collection base 13 is installed on the upper wall of the collection seat 2, the collection shaft 14 is installed on the upper wall of the collection base 13, and the collection top plate 15 is movably mounted on the upper wall of the collection shaft 14.
[0027] Working principle: When using the utility model, first connect the external AC power supply to the utility model to provide energy for the electrical appliances in the utility model, then the operator removes the collecting top plate 15, and then places the bundled steel bars on the outside of the collecting shaft 14, and then the operator installs the collecting top plate 15 back, and then the operator passes one end of the steel bar through the two mechanical guide rollers 5 and the two mechanical movable rollers 7, and then passes the steel bar through the annealing through tube 9, and then passes through the two sets of annealing straightening rollers 12. When the curved steel bar passes through the two mechanical guide rollers 5 and Two mechanical movable rollers 7 and two mechanical movable seats 6 can straighten the bent steel bars under the action of the mechanical spring 8. Then, under the pull of the operator, the steel bars pass through the annealing tube 9 and the annealing electromagnetic heating tube 10. When the annealing electromagnetic heating tube 10 is energized, the steel bars can be directly heated (the heater is a prior art and therefore not shown in the figure). Then, under the action of the two sets of annealing straightening rollers 12, the steel bars remain in a straight state. Then the steel bars are cooled in a natural state. After annealing is completed, the internal stress of the steel bars can be eliminated, so that the steel bars remain in a straight state.
[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A steel bar stretching device comprising: A chassis (1), a collecting seat (2) and a stretching seat (3), wherein the collecting seat (2) is mounted on the upper wall of the chassis (1), and the stretching seat (3) is mounted on the upper wall of the chassis (1), characterized in that the upper wall of the stretching seat (3) is mounted with a mechanical straightening structure, the upper wall of the stretching seat (3) is mounted with a thermal annealing structure, the upper wall of the stretching seat (3) is mounted with an annealing straightening structure, and the upper wall of the collecting seat (2) is mounted with a collecting structure.
2. A steel bar stretching device according to claim 1, characterized in that: The mechanical straightening structure comprises: two mechanical fixed seats (4), two mechanical guide rollers (5), two mechanical movable seats (6), two mechanical movable rollers (7) and two mechanical springs (8).
3. A steel bar stretching device according to claim 2, characterized in that: The two mechanical fixed seats (4) are respectively mounted on the upper wall surface of the stretching seat (3), the two mechanical guide rollers (5) are respectively fixedly mounted inside the mechanical fixed seats (4), the two mechanical movable seats (6) are respectively mounted on the upper wall surface of the stretching seat (3), the two mechanical movable rollers (7) are respectively movably mounted inside the mechanical movable seats (6), and the two mechanical springs (8) are respectively mounted between the mechanical movable rollers (7) and the mechanical movable seats (6).
4. A steel bar stretching device according to claim 1, characterized in that: The thermal annealing structure comprises: an annealing through tube (9) and an annealing electromagnetic heating tube (10); The annealing through tube (9) is mounted on the upper wall surface of the stretching seat (3) via a bracket, and the annealing electromagnetic heating tube (10) is mounted outside the annealing through tube (9).
5. The steel bar stretching device according to claim 1, characterized in that: The annealing and straightening structure comprises: eight annealing and straightening seats (11) and eight annealing and straightening rollers (12); The eight annealing and straightening seats (11) are respectively installed on the upper wall surface of the stretching seat (3), and the eight annealing and straightening rollers (12) are respectively fixedly installed inside the annealing and straightening seats (11).
6. A steel bar stretching device according to claim 1, characterized in that: The collecting structure comprises: a collecting base (13), a collecting shaft (14) and a collecting top plate (15); The collecting base (13) is mounted on the upper wall of the collecting seat (2), the collecting shaft (14) is mounted on the upper wall of the collecting base (13), and the collecting top plate (15) is movably sleeved on the upper wall of the collecting shaft (14).
7. The steel bar stretching device according to claim 4, characterized in that: The annealing through tube (9) is a stainless steel tube.
8. The steel bar stretching device according to claim 5, characterized in that: The eight annealing and straightening seats (11) are grouped into four, and two groups of the annealing and straightening seats (11) are installed on the upper wall surface of the stretching seat (3) in a symmetrical positional relationship.