Straightening machine for cold-drawn wire processing

Abstract

The utility model discloses a straightener for cold-drawn wire processing. The straightener comprises a workbench, the protective cover is hinged to one side of the workbench; the two primary straightening assemblies are symmetrically arranged relative to the straightening base, one end of the screw rod is detachably connected with a U-shaped pressing plate, a plurality of straightening wheels are detachably connected in the U-shaped pressing plate, sliding grooves which are symmetrically arranged relative to the axis of the screw rod are formed in the outer surface of the side wall, close to the screw rod, of the U-shaped pressing plate, and guide columns are arranged in the sliding grooves. The outer portion of the guide column is slidably sleeved with a sliding block, the outer portion of the guide column is further sleeved with a first spring, a clamping part is arranged on the top of the sliding block in a protruding mode, and an annular clamping groove matched with the clamping part is formed in the outer wall of the screw in the circumferential direction of the screw. The first spring can drive the clamping part of the sliding block to be inserted into the annular clamping groove, and the clamping part is rotationally connected with the inner wall of the annular clamping groove. According to the utility model, the U-shaped pressing plate and the straightening wheel on the straightening machine can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of straightening machines, in particular to a cold wire drawing straightening machine. Background Art

[0002] Cold drawn wire is a kind of metal cold processing. The raw material is steel bar. After a series of processes such as shelling, the product is iron wire. Cold drawn wire needs to be straightened in the subsequent processing, and straightening machines are often used for straightening.

[0003] The prior art discloses an easily adjustable cold-drawn wire straightening machine, in which the rotation of the threaded rod causes the U-shaped pressure block and the pressure wheel to squeeze and fix the steel bar, and then the motor causes the compressed and fixed steel bar to move, and the steel bar is straightened under the action of the pressure wheel. However, the U-shaped pressure block of this application is arranged inside the main body, which is not convenient for disassembly and reinstallation when it is damaged and needs repair; and the pressure wheel is installed in the U-shaped pressure block, and the pressure wheel is easily worn due to friction with the cold drawn wire, and this application is not convenient for regular disassembly, replacement or repair of the pressure wheel. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a cold wire drawing straightening machine to facilitate the disassembly and installation of the U-shaped pressure plate and the straightening wheel on the straightening machine.

[0005] The utility model provides a cold wire drawing straightening machine, comprising:

[0006] A workbench, the top surface of which is provided with a straightening seat;

[0007] A protective cover hinged to one side of the workbench;

[0008] A first-level straightening assembly, two groups of which are symmetrically arranged about the straightening seat, each comprising a mounting frame arranged on the top surface of the workbench, a screw rod threaded through the inner thread of the mounting frame, one end of the screw rod being detachably connected to a U-shaped pressing plate, the opening of the U-shaped pressing plate facing the straightening seat, and a plurality of straightening wheels detachably connected inside the U-shaped pressing plate for straightening the cold drawn wire;

[0009] Among them, a sliding groove symmetrically arranged about the axis of the screw is provided on the outer surface of the side wall of the U-shaped pressure plate close to the screw, a guide column is provided in the sliding groove, a slider is provided on the external sliding sleeve of the guide column, and a first spring is also provided on the outside of the guide column, a clamping part is protruding from the top of the slider, and an annular clamping groove matching the clamping part is opened on the outer wall of the screw along its circumference, the first spring can drive the clamping part of the slider to be inserted into the annular clamping groove and the clamping part is rotatably connected to the inner wall of the annular clamping groove.

[0010] Furthermore, a limiting groove is provided on the side wall of the sliding block near the screw, and a limiting platform is rotatably sleeved on one end of the screw near the U-shaped pressure plate. A limiting column protruding from the outer edge of the limiting platform is provided to match the limiting groove, and the length of the limiting column allows the clamping part to be inserted into the annular groove and leave a gap with the inner wall of the annular groove.

[0011] Furthermore, a plurality of balls are protrudingly provided on the inner wall of the annular groove.

[0012] Furthermore, a mounting column symmetrically arranged about the screw rod is provided on the outer surface of the side wall of the U-shaped pressure plate, and the mounting column is located on the side of the slider away from the screw rod. A guide telescopic cylinder is connected between the mounting column and the slider, and a second spring is provided on the outer sleeve of the guide telescopic cylinder.

[0013] Furthermore, the straightening wheel comprises a straightening wheel body and a rotating shaft, the straightening wheel body is rotatably sleeved on the outer wall of the rotating shaft, the rotating shaft is hollow inside and its two ends are respectively in contact with the inner surface of the side wall of the U-shaped pressure plate, and the inner cavities at both ends of the rotating shaft are provided with first clamping plates;

[0014] The two side walls of the U-shaped pressure plate abutting against the rotating shaft are provided with installation grooves, and a pull rod is provided in the installation groove. One end of the pull rod passes through the side wall and the installation groove and extends into the inner cavity of the rotating shaft. The extended end of the pull rod is provided with a second clamping plate matching the first clamping plate.

[0015] Furthermore, a third spring is sleeved on the outside of the pull rod, one end of the third spring is connected to the inner wall of the mounting groove, and the other end of the third spring is connected to the second clamping plate.

[0016] Furthermore, a limiting plate is provided on the inner surface of the side wall of the U-shaped pressure plate at one side of the opening of the mounting groove.

[0017] Furthermore, the hollow structure of the first clamping plate and the second clamping plate are both in the shape of a quadrilateral.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The straightening seat and the first-level straightening assembly of the utility model are arranged on the top surface of the workbench, and a protective cover is hinged on one side of the workbench. In the working state, the protective cover can be buckled on the top surface of the workbench to protect the first-level straightening assembly on the top surface. When the U-shaped pressing plate needs to be repaired or replaced, the protective cover can be punched to disassemble the equipment, which is convenient for disassembling the U-shaped pressing plate or the straightening wheel.

[0020] Manually pull the slider to slide in the direction away from the screw until the clamping part on the top of the slider moves out of the annular groove of the screw to complete the disassembly of the U-shaped pressure plate. When the U-shaped pressure plate needs to be installed, manually increase the distance between the two sliders on the U-shaped pressure plate, insert the stud between the two sliders, and the elasticity of the first spring drives the clamping part on the top of the slider to insert into the annular groove on the stud to complete the installation of the U-shaped pressure plate. The setting of the first spring and the slider facilitates the disassembly and installation of the U-shaped pressure plate, thereby improving the convenience of disassembly and installation of the U-shaped pressure plate.

[0021] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0024] Figure 2 It is a side structural diagram of the utility model (excluding the secondary straightening assembly);

[0025] Figure 3 This is a schematic diagram of the connection position structure of the U-shaped pressure plate and the screw;

[0026] Figure 4 This is a schematic diagram of the connection position structure of the U-shaped pressure plate and the straightening wheel;

[0027] Figure 5 Schematic diagram of the internal structure of the shaft;

[0028] Numbers in the figure: 1, workbench; 2, straightening seat; 3, protective cover; 4, first-level straightening assembly; 5, second-level straightening assembly;

[0029] 41. Mounting frame; 42. Screw rod; 43. U-shaped pressing plate; 44. Straightening wheel;

[0030] 421, annular slot; 422, limiting platform; 423, limiting column;

[0031] 431, slide groove; 432, guide column; 433, slider; 434, first spring; 435, mounting column; 436, second spring; 437, pull rod; 438, second clamping plate; 439, third spring; 4310, limit plate;

[0032] 441, straightening wheel body; 442, rotating shaft;

[0033] 4211, ball bearing;

[0034] 4421, the first pallet. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] Please refer to Figure 1 to Figure 5 The embodiment of the utility model provides a cold-drawn wire straightening machine for straightening cold-drawn wires, comprising a workbench 1, a straightening seat 2, a protective cover 3, a primary straightening component 4 and a secondary straightening component 5; a straightening seat 2 is arranged on the top surface of the workbench 1, and the straightening seat 2 is installed at the center of the top surface of the workbench, and the protective cover 3 is hinged to one side of the workbench 1. When working, the protective cover 3 is buckled on the top of the workbench 1 to protect the primary straightening component 4 on its top surface. When the primary equipment component 4 is inspected and replaced, the protective cover can be opened, which is convenient for inspection and disassembly operations; the primary straightening component 4 is symmetrically arranged in two groups about the straightening seat 2, and the two groups of primary straightening components 4 include a mounting frame 41 arranged on the top surface of the workbench 1, and a screw 42 is passed through the internal thread of the mounting frame 41, and one end of the screw 42 is detachably connected to a U-shaped pressing plate 43, and the U-shaped pressing plate The opening of 43 faces the straightening seat 2, and a plurality of straightening wheels 44 are detachably connected to the U-shaped pressure plate 43; a secondary straightening component 5 is also arranged on the top surface of the workbench 1 along the feeding direction of the cold-drawn wire, and the secondary straightening component 5 has the same structure as the primary straightening component 4. The opening of the U-shaped pressure plate 43 of the secondary straightening component 5 is arranged downwardly facing the straightening seat 2, and the passing cold-drawn wire can be better straightened in all directions by the primary straightening component 4 and the secondary straightening component 5. Since the secondary straightening component 5 has the same structure as the primary straightening component 4, its structure is not repeated here. In the present application, the distance between the two U-shaped pressure plates 43 is increased by rotating the screw 42 forward, and then the cold-drawn wire is placed on the straightening seat 2 between the two U-shaped pressure plates 43, and then the screw 42 is rotated in the reverse direction to make the straightening wheel 44 fit the cold-drawn wire, and the cold-drawn wire is straightened by the straightening wheel 44. The cold-drawn wire straightening machine of the present application is also provided with a feeding mechanism for driving the cold-drawn wire to move. The feeding mechanism adopts mature driving technology in the prior art. Since it is irrelevant to the technical problem to be solved by the present application, it is not shown in the figure, and its structure will not be described in detail here.

[0038] Among them, a sliding groove 431 symmetrically arranged about the axis of the screw 42 is provided on the outer surface of the side wall of the U-shaped pressure plate 43 close to the screw 42, and a guide column 432 is provided in the sliding groove 431. The external sliding sleeve of the guide column 432 is provided with a slider 433, and the outer side of the guide column 432 is also sleeved with a first spring 434, the first spring 434 is located on the side of the slider 433 away from the screw 42, and one end of the first spring 434 is fixedly connected to the slider 433, and the other end is fixedly connected to the inner wall of the sliding groove 431, and a clamping portion is protruding from the top of the slider 433, and an annular clamping groove 421 matching the clamping portion is opened on the outer wall of the screw 42 along its circumference, and the first spring 434 can drive the clamping portion of the slider 433 to be inserted into the annular clamping groove 421, and the clamping portion is rotatably connected to the inner wall of the annular clamping groove 421. When the U-shaped pressure plate 43 is disassembled, the slider 433 is manually moved in a direction away from the stud 42 until the retaining portion of the slider 433 is removed from the annular retaining groove 421 on the stud 42, and the U-shaped pressure plate 43 is disassembled. When replacing a new U-shaped pressure plate 43, the slider 433 is manually moved to increase the distance between the two, and then the screw 42 is placed between the two. After releasing the slider 433, the elasticity of the first spring 434 drives the retaining portion of the slider 433 to be inserted into the annular retaining groove 421 on the screw 42, and the installation of the U-shaped pressure plate 43 is completed. The arrangement of the first spring 434 and the slider 433 facilitates the disassembly and installation of the U-shaped pressure plate 43, thereby improving the convenience of disassembly and installation of the U-shaped pressure plate.

[0039] In a preferred embodiment, if Figure 3 As shown, a limiting groove is provided on the side wall of the slider 433 near the screw 42, and a limiting platform 422 is rotatably sleeved on one end of the screw 42 near the U-shaped pressure plate 43. The end of the screw 42 is rotatably connected to the limiting platform 422 through a bearing, and a limiting column 423 matching the limiting groove is protruded from the outer edge of the limiting platform 422. The length of the limiting column 423 can allow the clamping part to be inserted into the annular groove 421, and a gap is left between the clamping part and the inner wall of the annular groove 421 closest to the axis of the screw 42. It is prevented that the clamping part and the inner wall of the annular groove 421 are too tightly abutted, so that after the clamping part is inserted into the annular groove 421, the screw 42 can be rotated, and the limiting column 423 is inserted into the limiting groove, which can further make the connection between the screw 42 and the slider 433 more stable, and prevent the clamping part of the slider 433 from coming out of the annular groove 421 when the screw 42 is rotated.

[0040] In a preferred embodiment, if Figure 3 As shown, a plurality of balls 4211 are protruding from the inner wall of the annular groove 421. The balls 4211 are in contact with the outer surface of the clamping portion, and the friction between the clamping portion and the annular groove 421 can be reduced by the balls 4211, so that the screw rod 42 can rotate more smoothly.

[0041] In a preferred embodiment, if Figure 3 As shown, the outer surface of the side wall of the U-shaped pressing plate 43 is also provided with a mounting column 435 symmetrically arranged about the screw rod 42. The mounting column 435 is located on the side of the slider 433 away from the screw rod 42. A guide telescopic cylinder is connected between the mounting column 435 and the slider 433, and a second spring 436 is sleeved on the outer side of the guide telescopic cylinder. One end of the second spring 436 is fixedly connected to the mounting column 435, and the other end is fixedly connected to the side wall of the slider 433 away from the screw rod 42. The elasticity of the second spring 436 allows the slider 433 to be inserted into the annular groove 421. Through the arrangement of the guide telescopic cylinder and the second spring 436, it cooperates with the first spring 434 to increase the elastic force applied to the slider 433, so that the holding portion of the slider 433 is stably inserted into the annular groove 421, and the limiting column 423 is stably inserted into the limiting groove, thereby improving the stability of the connection between the screw rod 42 and the U-shaped pressing plate 43.

[0042] In a preferred embodiment, if Figure 4 As shown, the straightening wheel 44 includes a straightening wheel body 441 and a rotating shaft 442. The straightening wheel body 441 is rotatably sleeved on the outer wall of the rotating shaft 442. The rotating shaft 442 is hollow inside and its two ends are respectively in contact with the inner surface of the side wall of the U-shaped pressing plate 43, and the inner cavities at both ends of the rotating shaft 442 are provided with first clamping plates 4421.

[0043] The two side walls of the U-shaped pressure plate 43 that abut against the rotating shaft 442 are provided with installation grooves, and a pull rod 437 is provided in the installation groove. One end of the pull rod 437 passes through the side wall and the installation groove and extends into the inner cavity of the rotating shaft 442. The extended end of the pull rod 437 is provided with a second clamping plate 438 that matches the first clamping plate 4421.

[0044] A third spring 439 is sleeved on the outside of the pull rod 437 , one end of the third spring 439 is connected to the inner wall of the installation groove, and the other end is connected to the second clamping plate 438 .

[0045] The first clamping plate 4421 is hollow inside, and a polygonal through hole is formed in the middle of the first clamping plate 4421, and the second clamping plate 438 is a polygon matching the through hole; in the absence of external force, the elasticity of the third spring 439 can make the second clamping plate 438 at the end of the pull rod 437 extend into the inner cavity of the rotating shaft 442 and engage with the through hole of the first clamping plate 4421, thereby fixing the straightening wheel 44 in the U-shaped pressure plate 43; when disassembling the straightening wheel 44, the pull plate 437 is pulled outward, the third spring 439 is compressed, and the second clamping plate 438 is separated from the first clamping plate 4421, so that the disassembly of the straightening wheel 44 is completed, and the operation is convenient.

[0046] In a preferred embodiment, if Figure 4As shown, a limit plate 4310 is provided on the inner surface of the side wall of the U-shaped pressing plate 43 at one side of the opening of the mounting groove. The limit plate 4310 facilitates the quick alignment of the inner cavity of the rotating shaft 442 with the mounting groove on the side wall of the U-shaped pressing plate 43 when the straightening wheel 44 is installed.

[0047] In a preferred embodiment, if Figure 5 As shown, the hollow structure of the first card plate 4421 and the shape of the second card plate 438 are both quadrilateral. The first card plate 4421 is hollow inside and has a quadrilateral through hole. The second card plate 438 is inserted into the through hole in the middle of the first card plate 4421. The quadrilateral structure can better fix the shaft 442 to prevent the shaft 442 from rotating.

[0048] In some other embodiments, the hollow structure shape of the first clamping plate 4421 and the shape of the second clamping plate 438 may also be triangular.

[0049] Working principle: In the present application, the distance between the two U-shaped pressure plates 43 is increased by rotating the screw rod 42 in the forward direction, and then the cold-drawn wire is placed on the straightening seat 2 between the two U-shaped pressure plates 43, and then the screw rod 42 is rotated in the reverse direction to make the straightening wheel 44 fit with the cold-drawn wire, and the cold-drawn wire is straightened by the straightening wheel 44; when the U-shaped pressure plate 43 needs to be disassembled, the slider 433 is manually moved in a direction away from the stud 42 until the clamping portion of the slider 433 moves out of the annular clamping groove 421 on the stud 42, and the U-shaped pressure plate 43 can be disassembled. When the straightening wheel 44 is disassembled, the pull plate 437 is pulled outward, and the third spring 439 is compressed to separate the second clamping plate 438 from the first clamping plate 4421, and the straightening wheel 44 can be disassembled, which is convenient to operate.

[0050] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cold wire drawing straightening machine, characterized in that: include: A workbench, the top surface of which is provided with a straightening seat; A protective cover hinged to one side of the workbench; A first-level straightening assembly, two groups of which are symmetrically arranged about the straightening seat, each comprising a mounting frame arranged on the top surface of the workbench, a screw rod threaded through the inner thread of the mounting frame, one end of the screw rod being detachably connected to a U-shaped pressing plate, the opening of the U-shaped pressing plate facing the straightening seat, and a plurality of straightening wheels detachably connected inside the U-shaped pressing plate for straightening the cold drawn wire; Among them, a sliding groove symmetrically arranged about the axis of the screw is provided on the outer surface of the side wall of the U-shaped pressure plate close to the screw, a guide column is provided in the sliding groove, a slider is provided on the external sliding sleeve of the guide column, and a first spring is also provided on the outside of the guide column, a clamping part is protruding from the top of the slider, and an annular clamping groove matching the clamping part is opened on the outer wall of the screw along its circumference, the first spring can drive the clamping part of the slider to be inserted into the annular clamping groove and the clamping part is rotatably connected to the inner wall of the annular clamping groove.

2. A cold wire drawing straightening machine according to claim 1, characterized in that: A limiting groove is provided on the side wall of the sliding block near the screw rod, and a limiting platform is rotatably sleeved on one end of the screw rod near the U-shaped pressure plate. A limiting column matching the limiting groove is protruded from the outer edge of the limiting platform, and the length of the limiting column allows the clamping part to be inserted into the annular groove and leave a gap with the inner wall of the annular groove.

3. A cold wire drawing straightening machine according to claim 2, characterized in that: A plurality of balls are protrudingly arranged on the inner wall of the annular groove.

4. A cold wire drawing straightening machine according to claim 3, characterized in that: The outer surface of the side wall of the U-shaped pressure plate is also provided with a mounting column symmetrically arranged with respect to the screw rod. The mounting column is located on the side of the slider away from the screw rod. A guide telescopic cylinder is connected between the mounting column and the slider, and a second spring is sleeved on the outside of the guide telescopic cylinder.

5. A cold wire drawing straightening machine according to claim 1, characterized in that: The straightening wheel comprises a straightening wheel body and a rotating shaft, wherein the straightening wheel body is rotatably sleeved on the outer wall of the rotating shaft, the rotating shaft is hollow inside and its two ends are respectively in contact with the inner surface of the side wall of the U-shaped pressing plate, and the inner cavities at both ends of the rotating shaft are provided with first clamping plates; The two side walls of the U-shaped pressure plate abutting against the rotating shaft are provided with installation grooves, and a pull rod is provided in the installation groove. One end of the pull rod passes through the side wall and the installation groove and extends into the inner cavity of the rotating shaft. The extended end of the pull rod is provided with a second clamping plate matching the first clamping plate.

6. A cold wire drawing straightening machine according to claim 5, characterized in that: A third spring is sleeved on the outside of the pull rod, one end of the third spring is connected to the inner wall of the mounting groove, and the other end of the third spring is connected to the second clamping plate.

7. A cold wire drawing straightening machine according to claim 6, characterized in that: A limiting plate is arranged on the inner surface of the side wall of the U-shaped pressing plate at one side of the opening of the mounting groove.

8. A cold wire drawing straightening machine according to claim 7, characterized in that: The hollow structure shape of the first clamping plate and the shape of the second clamping plate are both quadrilateral.

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