CN215657557U

CN215657557U - Straightening head and steel bar straightening machine

Info

Publication number: CN215657557U
Application number: CN202121945952.2U
Authority: CN
Inventors: 陈维修
Original assignee: Wenzhou Ouxiang Machinery Co ltd
Current assignee: Wenzhou Ouxiang Machinery Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-28
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a straightening head and a steel bar straightening machine, and relates to the technical field of steel bar straightening. Including the fixing base, fixed head and activity head, the first end of fixing base along the direction of its length is provided with the connecting portion that are used for with plunger pump fixed connection, be provided with the through-hole that the piston post that supplies the plunger pump passed on the connecting portion, the fixing base is along its length direction's second end fixedly connected with fixed head, be provided with the platform that is used for placing the reinforcing bar on the fixing base and two width direction intervals along the fixing base set up, it is symmetrical, the extrusion portion that has the arcwall face, the activity head be used for with piston post fixed connection, the overhead arc wall that is provided with the saddle and extends along the width direction of fixing base that is provided with of activity. It can make the reinforcing bar atress more even, stable, is difficult for throwing away the reinforcing bar at extrusion alignment in-process, and the alignment is effectual.

Description

Straightening head and steel bar straightening machine

Technical Field

The utility model relates to the technical field of steel bar straightening, in particular to a straightening head and a steel bar straightening machine.

Background

The straightening head is an actuating mechanism of a steel bar straightening machine, and the steel bar straightening machine is a tool for straightening bent steel bars. In the building construction process, need use a large amount of reinforcing bars, need break the straight off with the fingers and thumb crooked reinforcing bar sometimes, the workman can utilize bar straightener to correct crooked reinforcing bar this moment, straightens it.

The steel bar straightening machine mainly comprises a hydraulic driving part and a straightening head part, wherein the straightening head part comprises a fixed head and a movable head, a bent steel bar is placed between the fixed head and the movable head, and the hydraulic driving part drives the movable head to move relative to the fixed head to straighten the steel bar. In order to ensure the straightening effect, the requirement on the straightening head is higher.

Therefore, how to make a straightening head can make the reinforcing steel bar stressed evenly, is difficult to throw the reinforcing steel bar out in the extrusion straightening process, has good straightening effect, and becomes a problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a straightening head which can enable a reinforcing steel bar to be stressed more uniformly and stably, the reinforcing steel bar is not easy to throw out in the extrusion straightening process, and the straightening effect is good.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a straightening head which comprises a fixed seat, a fixed head and a movable head, wherein a connecting part used for being fixedly connected with a plunger pump is arranged at a first end of the fixed seat along the length direction of the fixed seat, a through hole for a piston column of the plunger pump to pass through is formed in the connecting part, the fixed head is fixedly connected with a second end of the fixed seat along the length direction of the fixed seat, a platform used for placing a reinforcing steel bar and two symmetrical extrusion parts with arc-shaped surfaces are arranged on the fixed head at intervals along the width direction of the fixed seat, the movable head is used for being fixedly connected with the piston column, and a supporting platform and an arc-shaped groove extending along the width direction of the fixed seat are arranged on the movable head.

Optionally, the fixing base is provided with the joint piece along its length direction's second end, be provided with on the fixed head with first joint blind hole of joint piece assorted, just first joint blind hole with the joint piece forms the joint that can not the rotation each other, be provided with first screw hole on the joint piece, be provided with first mounting hole on the diapire of first joint blind hole, first bolt passes first mounting hole spiro union is in make in the first screw hole fixed connection be in on the fixing base.

Optionally, the clamping block is a cuboid with four edges provided with round corners.

Optionally, the movable head be provided with piston post assorted second joint blind hole, the diapire of second joint blind hole be used for with the tip of piston post offsets, be provided with the second screw hole on the lateral wall of second joint blind hole, the spiro union in the second screw hole be used for with the second bolt that the ring channel on the piston post offsets.

Optionally, the movable head is slidably disposed on the piston column along a length direction of the piston column, and further includes a locking structure that enables the movable head to be locked at least at two positions, and the locking structure enables the movable head to be fixedly connected with the piston column.

Optionally, the movable head be provided with piston post assorted second joint blind hole, second joint blind hole slip cup joints on the piston post, the locking structure includes the edge the length direction interval of fixing base sets up at least two second screw holes on the lateral wall of second joint blind hole, the spiro union is in be used for in the second screw hole with the second bolt that ring channel on the piston post offseted, still including being used for compensating the difference the second screw hole with when the ring channel is aligned the diapire of second joint blind hole with the gasket in the clearance between the tip of piston post.

Optionally, a weight reduction slot is provided on the fixation head.

The utility model also provides a steel bar straightening machine which comprises a straightening head, wherein the straightening head is any one of the straightening heads.

The technical scheme provided by the utility model can have the following beneficial effects: the utility model comprises a fixed seat, a fixed head and a movable head, wherein a first end of the fixed seat along the length direction of the fixed seat is provided with a connecting part for fixedly connecting with a plunger pump, the connecting part is provided with a through hole for a piston column of the plunger pump to pass through, a second end of the fixed seat along the length direction of the fixed seat is fixedly connected with the fixed head, the fixed head is provided with a platform for placing a reinforcing steel bar and two symmetrical extrusion parts with arc surfaces arranged at intervals along the width direction of the fixed seat, the movable head is used for fixedly connecting with the piston column, and the movable head is provided with a supporting platform and an arc groove extending along the width direction of the fixed seat. It can make the reinforcing bar atress more even, stable, is difficult for throwing away the reinforcing bar at extrusion alignment in-process, and the alignment is effectual.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a straightening head shown in the first embodiment;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a perspective view of the retaining head;

fig. 4 is a perspective view of the movable head.

In the figure: 1. a fixed seat; 2. a fixed head; 3. a movable head; 4. a first bolt; 5. a second bolt; 6. a gasket; 9. a plunger pump; 11. a connecting portion; 12. a clamping block; 13. a first limiting surface; 21. a platform; 22. a pressing section; 23. a first clamping blind hole; 24. a weight reduction groove; 31. a saddle; 32. an arc-shaped slot; 33. a second clamping blind hole; 34. a second limiting surface; 91. a piston post; 111. a through hole; 121. a first threaded hole; 122. round corners; 231. a first mounting hole; 331. a second threaded hole; 911. an annular groove.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Specifically, "front" refers to a direction approaching the viewer perpendicular to the paper surface, and "rear" refers to a direction departing the viewer perpendicular to the paper surface. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus or methods consistent with certain aspects of the utility model.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.

Referring to fig. 1-4, the utility model provides a straightening head, which comprises a fixed seat 1, a fixed head 2 and a movable head 3, wherein a connecting part 11 for fixedly connecting with a plunger pump 9 is arranged at a first end of the fixed seat 1 along the length direction of the fixed seat, a through hole 111 for a piston column 91 of the plunger pump 9 to pass through is arranged on the connecting part 11, the fixed head 2 is fixedly connected with a second end of the fixed seat 1 along the length direction of the fixed seat, a platform 21 for placing a steel bar and two symmetrical extrusion parts 22 with arc surfaces are arranged on the fixed head 2 at intervals along the width direction of the fixed seat 1, the movable head 3 is used for fixedly connecting with the piston column 91, and a supporting platform 31 and an arc groove 32 extending along the width direction of the fixed seat 1 are arranged on the movable head 3.

When using, put crooked reinforcing bar on platform 21, the reinforcing bar is to the direction protrusion of activity head 3, and the reinforcing bar offsets with extrusion portion 22, and activity head 3 moves to fixed head 2 under the pushing action of piston post 91, is provided with saddle 31 and arc wall 32 on the activity head 3, and saddle 31 shovels the reinforcing bar to in the arc wall 32, then continues to promote the reinforcing bar, extrudees the reinforcing bar and makes its straightening. Because the extruding parts 22 are symmetrically arranged and provided with the arc-shaped surfaces, the reinforcing steel bars are stressed uniformly and stably and are not easy to throw away, and the straightening effect is good.

Fixing base 1 is provided with joint piece 12 along its length direction's second end, be provided with on the fixed head 2 with the first joint blind hole 23 of joint piece 12 assorted, and first joint blind hole 23 forms the joint that can not the looks mutual rotation with joint piece 12, be provided with first screw hole 121 on the joint piece 12, be provided with first mounting hole 231 on the diapire of first joint blind hole 23, first bolt 4 passes first mounting hole 231 spiro union and makes fixed head 2 fixed connection on fixing base 1 in first screw hole 121.

Because first joint blind hole 23 and joint piece 12 form the joint of non-mutual pivoted, this kind of joint is connected more firmly, because the reinforcing bar is great to fixed head 2's effort at alignment in-process, this kind of structure has sufficient fastness.

The clamping block 12 is a rectangular parallelepiped with four edges provided with rounded corners 122. The clamping block 12 may be provided in other shapes. The cuboid structure is simple, and the round angle 122 is arranged, so that the first clamping blind hole 23 can be clamped with the clamping block 12 conveniently.

The movable head 3 is provided with a second clamping blind hole 33 matched with the piston column 91, the bottom wall of the second clamping blind hole 33 is used for abutting against the end part of the piston column 91, a second threaded hole 331 is formed in the side wall of the second clamping blind hole 33, and a second bolt 5 used for abutting against an annular groove 911 in the piston column 91 is screwed in the second threaded hole 331.

The movable head 3 is slidably disposed on the piston column 91 along the length direction of the piston column 91, and further includes a locking structure for locking the movable head 3 at least at two positions, and the locking structure fixedly connects the movable head 3 to the piston column 91. In the prior art, because the extension length of the piston column 91 is fixed for a steel bar straightening machine, the minimum clearance between the movable head 3 and the fixed head 2 is determined, and the straightening head can only straighten steel bars with one diameter (the diameter close to the minimum clearance). By adopting the structure, the minimum clearance between the movable head 3 and the fixed head 2 can be adjusted, so that the straightening head is suitable for reinforcing steel bars with at least two diameters.

The movable head 3 is provided with the second joint blind hole 33 with piston post 91 assorted, second joint blind hole 33 slides and cup joints on piston post 91, the locking structure includes along the length direction interval setting of fixing base 1 two at least second screw holes 331 on the lateral wall of second joint blind hole 33, the spiro union is used for the second bolt 5 that offsets with ring channel 911 on the piston post 91 in second screw hole 331, still when being aligned with ring channel 911 including being used for compensating different second screw holes 331, the gasket 6 in the clearance between the diapire of second joint blind hole 33 and the tip of piston post 91. When the reinforcing bars with different diameters need to be straightened, only the gasket 6 with proper thickness needs to be padded, then the corresponding second threaded hole 331 is aligned with the annular groove 911, and the second bolt 5 is screwed down.

The fixing head 2 is provided with a lightening slot 24. The addition of the lightening slots 24 allows the fixing head 2 to be lightened and save material while ensuring the required strength.

The movable head 3 is provided with a second limiting surface 34, the fixing seat 1 is provided with a first limiting surface 13, and the gap between the second limiting surface 34 and the first limiting surface 13 is less than or equal to 1 mm and greater than or equal to 0 mm. Thus, when the movable head 3 and the piston post 91 are not firmly connected to each other and rotate relatively, the first limiting surface 13 and the second limiting surface 34 can play a role in limiting the large-angle rotation thereof.

A steel bar straightening machine comprises a straightening head, wherein the straightening head is the straightening head described in any one of the above items. The steel bar straightener has the beneficial effects of the straightening head correspondingly described above.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations to the above embodiments, which are within the scope of the present invention, may be made by those of ordinary skill in the art.

Claims

1. A straightening head is characterized by comprising a fixed seat (1), a fixed head (2) and a movable head (3), a connecting part (11) which is fixedly connected with the plunger pump (9) is arranged at the first end of the fixed seat (1) along the length direction, the connecting part (11) is provided with a through hole (111) for a piston column (91) of the plunger pump (9) to pass through, the second end of the fixed seat (1) along the length direction is fixedly connected with the fixed head (2), the fixed head (2) is provided with a platform (21) for placing a steel bar and two symmetrical extrusion parts (22) with arc surfaces which are arranged at intervals along the width direction of the fixed seat (1), the movable head (3) is fixedly connected with the piston column (91), and a supporting table (31) and an arc-shaped groove (32) extending along the width direction of the fixed seat (1) are arranged on the movable head (3).

2. The straightening head according to claim 1, characterized in that a clamping block (12) is arranged at a second end of the fixing seat (1) along the length direction, a first clamping blind hole (23) matched with the clamping block (12) is arranged on the fixing head (2), the first clamping blind hole (23) and the clamping block (12) form clamping which cannot rotate mutually, a first threaded hole (121) is arranged on the clamping block (12), a first mounting hole (231) is arranged on the bottom wall of the first clamping blind hole (23), and a first bolt (4) penetrates through the first mounting hole (231) and is screwed in the first threaded hole (121) so that the fixing head (2) is fixedly connected to the fixing seat (1).

3. The straightening head according to claim 2, characterized in that the clamping block (12) is provided in the shape of a cuboid with rounded corners (122) at the four edges.

4. The straightening head according to claim 1, characterized in that the movable head (3) is provided with a second clamping blind hole (33) matched with the piston column (91), the bottom wall of the second clamping blind hole (33) is used for abutting against the end of the piston column (91), a second threaded hole (331) is arranged on the side wall of the second clamping blind hole (33), and a second bolt (5) for abutting against an annular groove (911) on the piston column (91) is screwed in the second threaded hole (331).

5. The straightening head according to claim 1, characterized in that the movable head (3) is slidably arranged on the piston post (91) in the longitudinal direction of the piston post (91), and further comprises a locking structure which enables the movable head (3) to be locked in at least two positions, the locking structure fixedly connecting the movable head (3) with the piston post (91).

6. The alignment head according to claim 5, wherein the movable head (3) is provided with a second clamping blind hole (33) matched with the piston column (91), the second clamping blind hole (33) is slidably sleeved on the piston column (91), the locking structure comprises at least two second threaded holes (331) arranged on the side wall of the second clamping blind hole (33) at intervals along the length direction of the fixing seat (1), a second bolt (5) screwed in the second threaded hole (331) and used for abutting against an annular groove (911) on the piston column (91), and a gasket (6) used for compensating a gap between the bottom wall of the second clamping blind hole (33) and the end of the piston column (91) when the second threaded hole (331) is aligned with the annular groove (911).

7. The straightening head according to claim 1, characterized in that the fixing head (2) is provided with weight-reducing grooves (24).

8. A reinforcement bar straightener comprising a straightener head, characterized in that the straightener head is as claimed in any one of claims 1 to 7.