Self-rotating steel bar nicking device

Abstract

The utility model relates to a self-rotating steel bar nicking device which comprises a wire drawing powder box, the middle of the wire drawing powder box is connected with a partition plate, the left end of the partition plate is a wire drawing powder containing area, wire drawing powder is contained in the partition plate, the right end of the partition plate is a machining area, and a nicking assembly is connected to a right end side plate of the wire drawing powder box. Through holes are formed in a side plate at the left end of the wire drawing powder box and the partition plate, and steel bars penetrate through the through holes in the side plate at the left end of the wire drawing powder box and the partition plate to be connected with the nicking assembly. The utility model aims to provide the self-rotating steel bar nicking device for overcoming the existing defects, so that the energy and the maintenance cost can be saved, and the steel bar nicking quality is good.

Description

Technical Field

[0001] The utility model relates to a self-rotating steel bar notching device. Background Art

[0002] The weaving process of the PHC (prestressed high-strength concrete pipe pile) pipe pile reinforcement cage is as follows: the weaving machine pulls the steel rod (main reinforcement) forward synchronously, and the steel rod is fixed by welding the distributed ring reinforcement (high-strength wire) through the rolling welding machine, so that the steel rod and the distributed ring reinforcement form a cage structure.

[0003] The raw material of the ring reinforcement is high-strength wire, which is formed by cold drawing of a wire drawing machine. There are two processing methods for cold drawing of ring reinforcement: one is to obtain cold-drawn smooth steel wire through a round die and a fixed die box, and the other is to obtain cold-drawn spiral steel wire through a notched die and a rotating die box. The ring reinforcement used in the PHC pile reinforcement cage is cold-drawn spiral steel wire, and a notched die and a rotating die box are required during the processing.

[0004] The rotary mold boxes currently used in the market are all equipped with a driving device. The driving motor drives the rotary mold box to work, and the rotary mold box drives the scoring mold to rotate, thereby achieving the purpose of scoring. The disadvantages of the rotary mold box with a driving device are: ① It is necessary to install an additional power drive and transmission system, which makes its structure complicated and increases maintenance and energy consumption costs. ② When just starting and stopping, the rotation speed of the rotary mold box and the wire drawing speed are unstable, which easily causes the rotation speed of the mold box and the wire drawing speed to not match, resulting in different pitch sizes of the scored steel wire, resulting in unstable quality of the scored steel wire. Therefore, a self-rotating steel bar scoring device is proposed to address the above problems. Utility Model Content

[0005] The utility model aims to overcome the existing defects and provide a self-rotating steel bar notching device, which can save energy and maintenance costs and has good steel bar notching quality.

[0006] The technical solution to achieve the above-mentioned purpose is: a self-rotating steel bar scoring device, including a wire drawing powder box, a partition connected to the middle of the wire drawing powder box, the left end of the partition is a wire drawing powder placement area, inside which wire drawing powder is placed, and the right end is a processing area, and a scoring component is connected to the right end side plate of the wire drawing powder box; through holes are provided on the left end side plate of the wire drawing powder box and the partition, and the steel bar passes through the through holes on the left end side plate of the wire drawing powder box and the partition to connect the scoring component.

[0007] Preferably, the scoring assembly includes a fixed shell, which is fixedly connected to the right end side plate of the drawing powder box, the interior of the fixed shell is connected to a hollow shaft via a rotating assembly, the interior of the hollow shaft is fixedly connected to a scoring mold, and three negative grooves are equidistantly provided on the scoring mold, and the angle between the negative grooves and the longitudinal center of the scoring mold is 10°-15°; the steel bar runs through the scoring mold to the right side of the drawing powder box.

[0008] Preferably, the rotating assembly includes a deep groove ball bearing and a thrust ball bearing, the inner side of the fixed housing is connected to the deep groove ball bearing and the thrust ball bearing, and the inner rings of the deep groove ball bearing and the thrust ball bearing are connected to the hollow shaft.

[0009] Preferably, the left end of the notching mold is flush with the left end of the hollow shaft, and a cover plate is connected to the left end of the notching mold and the hollow shaft.

[0010] Preferably, the deep groove ball bearing is located on the left side of the thrust ball bearing.

[0011] Preferably, the wire drawing powder box is made of steel plate.

[0012] The beneficial effects of the utility model are as follows: the self-rotating steel bar notching device can realize that no external power device is required, and the mold box can automatically rotate during the cold drawing process of the steel wire, saving energy and maintenance costs. The rotation speed of the mold box can be adjusted automatically according to the speed of the cold drawing, realizing stepless speed change, improving the notching quality of the notched steel wire, and solving the problem of uneven pitch of the notched steel wire caused by the mismatch between the rotation speed of the rotating mold box and the drawing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the self-rotating steel bar notching device of the utility model;

[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 It is a detailed diagram of the location of the negative groove of the utility model.

[0016] In the figure: 1. drawing powder box; 2. partition; 3. drawing powder placement area; 4. processing area; 5. through hole; 6. steel bar; 7. fixed shell; 8. hollow shaft; 9. notch mold; 10. deep groove ball bearing; 11. thrust ball bearing; 12. cover plate; 13. negative groove. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 1-3 As shown, a self-rotating steel bar scoring device includes a drawing powder box 1, a partition 2 is connected to the middle of the drawing powder box 1, the left end of the partition 2 is a drawing powder placement area 3, inside which drawing powder is placed, and the right end is a processing area 4, and a scoring component is connected to the right end side plate of the drawing powder box 1; through holes 5 are provided on the left end side plate of the drawing powder box 1 and the partition 2, and steel bars 6 pass through the through holes 5 on the left end side plate of the drawing powder box 1 and the partition 2 to connect the scoring component.

[0020] Specifically, the scoring assembly includes a fixed housing 7, which is fixedly connected to the right end side plate of the wire drawing powder box 1. The fixed housing 7 is connected to a hollow shaft 8 through a rotating assembly. The hollow shaft 8 is fixedly connected to a scoring mold 9. The scoring mold 9 is provided with three female grooves 13 at equal distances. The female grooves 13 and the longitudinal center angle of the scoring mold 9 are 10°-15°. The steel bar 6 passes through the scoring mold 9 to the right side of the wire drawing powder box 1. The rotating assembly includes a deep groove ball bearing 10 and a thrust ball bearing 11. The inner side of the fixed housing 7 is connected to the deep groove ball bearing 10 and the thrust ball bearing 11. The inner rings of the deep groove ball bearing 10 and the thrust ball bearing 11 are connected to the hollow shaft 8. The deep groove ball bearing 10 is located on the left side of the thrust ball bearing 11.

[0021] Specifically, the left end of the notching die 9 is flush with the left end of the hollow shaft 8, and the left end of the notching die 9 and the hollow shaft 8 are connected with a cover plate 12. The wire drawing powder box 1 is made of steel plate.

[0022] Specifically, the fixed housing 7 is installed on the wire drawing powder box 1, the hollow shaft 8 is installed on the fixed housing 7 through the deep groove ball bearing 10 and the thrust ball bearing 11, and the notching die 9 is installed on the hollow shaft 8. When the steel bar 6 is drawn through the notching die 9, a circumferential force will be generated between the notch 13 of the notching die 9 and the steel bar 6, which has an angle with the central axis of the hollow shaft 8. This force will then drive the hollow shaft 8 to rotate through the rotation of the bearing, thereby realizing the self-driven rotation of the rotating die box. The rotation speed of the rotating die box will change with the change of the steel bar drawing speed, and can achieve stepless speed change to ensure the quality of the notched steel wire.

[0023] The self-rotating steel bar notching device can realize the automatic rotation of the mold box during the cold drawing process of the steel wire without the need for an external power device, saving energy and maintenance costs. The rotation speed of the mold box can be adjusted automatically according to the speed of the cold drawing, realizing stepless speed change, improving the notching quality of the notched steel wire, and solving the problem of uneven pitch of the notched steel wire caused by the mismatch between the rotation speed of the rotating mold box and the drawing speed.

[0024] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A self-rotating steel bar notching device, characterized in that: It comprises a drawing powder box (1), the middle part of which is connected to a partition (2), the left end of the partition (2) is a drawing powder placement area (3) in which drawing powder is placed, the right end is a processing area (4), and a scoring component is connected to the right end side plate of the drawing powder box (1); through holes (5) are provided on the left end side plate of the drawing powder box (1) and the partition (2), and steel bars (6) penetrate through the through holes (5) on the left end side plate of the drawing powder box (1) and the partition (2) to connect the scoring component.

2. The self-rotating steel bar notching device according to claim 1, characterized in that: The scoring assembly includes a fixed shell (7), which is fixedly connected to the right end side plate of the drawing powder box (1); the fixed shell (7) is connected to a hollow shaft (8) via a rotating assembly; the hollow shaft (8) is fixedly connected to a scoring mold (9); three female grooves (13) are equidistantly provided on the scoring mold (9); the female grooves (13) and the longitudinal center angle of the scoring mold (9) are 10°-15°; the steel bar (6) passes through the scoring mold (9) to the right side of the drawing powder box (1).

3. The self-rotating steel bar notching device according to claim 2, characterized in that: The rotating assembly comprises a deep groove ball bearing (10) and a thrust ball bearing (11); the inner side of the fixed housing (7) is connected to the deep groove ball bearing (10) and the thrust ball bearing (11); the inner rings of the deep groove ball bearing (10) and the thrust ball bearing (11) are connected to the hollow shaft (8).

4. The self-rotating steel bar notching device according to claim 2, characterized in that: The left end of the notching mold (9) is flush with the left end of the hollow shaft (8), and the left ends of the notching mold (9) and the hollow shaft (8) are connected to a cover plate (12).

5. The self-rotating steel bar notching device according to claim 3, characterized in that: The deep groove ball bearing (10) is located on the left side of the thrust ball bearing (11).

6. The self-rotating steel bar notching device according to claim 1, characterized in that: The wire drawing powder box (1) is made of steel plate.

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