CN212494546U - Cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device - Google Patents
Cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device Download PDFInfo
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- CN212494546U CN212494546U CN202021746670.5U CN202021746670U CN212494546U CN 212494546 U CN212494546 U CN 212494546U CN 202021746670 U CN202021746670 U CN 202021746670U CN 212494546 U CN212494546 U CN 212494546U
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Abstract
The utility model discloses a cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device. The utility model discloses a cold rolling forming mechanism, through two first cold rolling units that set up from top to bottom and two second cold rolling units that set up about, two first working rolls and two first supporting rollers that constitute two first cold rolling units, two second working rolls and two second supporting rollers that constitute two second cold rolling units have formed eight roller structures, and the cold rolling forming processing of jumbo size wire rod can be realized simply efficient to the big rolling force that backing roll and working roll cooperation formed; the cold rolling forming device with the cold rolling forming mechanism is provided with at least two groups of cold rolling forming mechanisms, can realize continuous forming and winding of wires, and is high in processing efficiency.
Description
Technical Field
The utility model relates to a metal wire's cold rolling shaping field, concretely relates to cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device.
Background
At present, for the processing of a large-size special-shaped wire (the large-size special-shaped wire refers to a special-shaped metal wire which is processed by using a metal disc with the diameter of 25-38 mm as a master batch), a whole set of complex processing procedures are usually needed for realizing the processing, and the processing efficiency is low; meanwhile, due to the structural limitation of processing equipment, the end product is realized by cutting to length and cold drawing when the special-shaped wire rod is processed, and the continuous processing and winding of the special-shaped wire rod cannot be realized, so that the processing efficiency is further reduced.
Disclosure of Invention
The utility model discloses an it is not enough to overcome prior art, provides a cold rolling forming mechanism of jumbo size abnormal shape wire rod that machining efficiency is high.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a cold rolling forming mechanism for large-size special-shaped wires comprises a rack, two first cold rolling units and two second cold rolling units, wherein the two first cold rolling units are arranged on the rack along the vertical direction, the two second cold rolling units are arranged on the rack along the horizontal direction, and the two first cold rolling units and the two second cold rolling units can be matched to form a cavity for the special-shaped wires to pass through;
the first cold rolling unit comprises a first supporting roller and a first working roller which are rotatably arranged and mutually abutted, the second cold rolling unit comprises a second supporting roller and a second working roller which are rotatably arranged and mutually abutted, the first working roller and the second working roller can respectively abut against the peripheral side part of the special-shaped wire in a matched manner, the rotating axes of the first supporting roller and the first working roller extend along the horizontal direction and are vertical to the passing direction of the special-shaped wire, and the rotating axes of the second supporting roller and the second working roller extend along the vertical direction;
the cold rolling forming mechanism further comprises a first driving module for driving the first working roll to rotate.
Preferably, the roller diameter of the first working roller is smaller than that of the first supporting roller, and the roller diameter of the second working roller is smaller than that of the second supporting roller.
Preferably, the cold-rolling forming mechanism further comprises a concave portion arranged on the first supporting roller and/or the second supporting roller around the circumferential direction of the first supporting roller and/or the second supporting roller, and a convex portion arranged on the first working roller and/or the second working roller around the circumferential direction of the first working roller and/or the second working roller, and the concave portion and the convex portion can be matched with each other.
Further preferably, the protruding portion can be in fit interference with the axial side portion of the special-shaped wire.
Preferably, the cold rolling forming mechanism further comprises a sliding groove which is formed in the rack along the vertical direction, one of the two first cold rolling units is slidably arranged in the sliding groove, and the cold rolling forming mechanism further comprises a second driving module which is used for driving one of the two first cold rolling units to slide.
Preferably, the cold rolling forming mechanism further comprises a guiding unit located on one side of the rack, the guiding unit comprises a plurality of groups of guiding modules which are sequentially arranged along the passing direction of the special-shaped wire, each group of guiding modules respectively comprises two rotatable guiding rollers which are arranged on two sides of the passing direction of the special-shaped wire, the rotating axes of the two guiding rollers extend along the vertical direction, and the two guiding rollers can respectively and cooperatively abut against two axial side portions of the special-shaped wire.
The utility model discloses a cold rolling forming device of jumbo size abnormal shape wire rod that another purpose is overcome prior art not enough, provides the continuous processing that uses foretell cold rolling forming mechanism and can realize the wire rod and the rolling.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the cold rolling forming device for the large-size special-shaped wire rods comprises an unwinding mechanism and a winding mechanism, and further comprises at least two groups of cold rolling forming mechanisms between the unwinding mechanism and the winding mechanism.
Preferably, winding mechanism includes frame, rotatable and slidable locate wind-up roll on the frame, be used for the drive wind-up roll pivoted third drive module and be used for the drive the gliding fourth drive module of wind-up roll, the axis of rotation of wind-up roll extends and perpendicular along the horizontal direction the direction of passing through of abnormal shape wire rod, the slip direction of wind-up roll is unanimous with the extending direction of its axis of rotation.
Preferably, the cold rolling forming device further comprises a plurality of tension assemblies and straightening assemblies which are respectively positioned between every two groups of cold rolling forming mechanisms.
Preferably, the cold rolling forming device further comprises a rolling guide mechanism located between the cold rolling forming mechanism and the rolling mechanism, the rolling guide mechanism comprises two groups of horizontal guide units arranged along the passing direction of the special-shaped wire rod and a vertical guide unit located between the two groups of horizontal guide units, the horizontal guide units comprise a plurality of horizontal guide rollers arranged at intervals on two sides of the special-shaped wire rod in the horizontal direction, the vertical guide units comprise a plurality of vertical guide rollers arranged at intervals on two sides of the special-shaped wire rod in the vertical direction, the rotation axis of the horizontal guide rollers extends along the vertical direction, the rotation axis of the vertical guide rollers extends along the horizontal direction, and the horizontal guide rollers and the vertical guide rollers can be respectively matched to abut against the peripheral side portions of the special-shaped wire rod.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a cold rolling forming mechanism, through two first cold rolling units that set up from top to bottom and two second cold rolling units that set up about, two first working rolls and two first supporting rollers that constitute two first cold rolling units, two second working rolls and two second supporting rollers that constitute two second cold rolling units have formed eight roller structures, and the cold rolling forming processing of jumbo size wire rod can be realized simply efficient to the big rolling force that backing roll and working roll cooperation formed; the cold rolling forming device with the cold rolling forming mechanism is provided with at least two groups of cold rolling forming mechanisms, can realize continuous forming and winding of wires, and is high in processing efficiency.
Drawings
Fig. 1 is a schematic front view of a cold rolling forming mechanism in an embodiment of the present invention;
fig. 2 is a schematic top view of a cold rolling forming mechanism according to an embodiment of the present invention;
fig. 3 is a schematic side view of a cold rolling forming mechanism according to an embodiment of the present invention;
fig. 4 is a schematic top view of a cold rolling forming apparatus according to an embodiment of the present invention;
fig. 5 is a schematic top view of a winding mechanism according to an embodiment of the present invention;
fig. 6 is a schematic top view of a rolling guide mechanism according to an embodiment of the present invention.
In the figure: 1. a frame; 2. a first cold rolling unit; 2a, a first supporting roller; 2b, a first work roll; 3. a second cold rolling unit; 3a, a second supporting roller; 3b, a second working roll; 4. a first driving module; 5. a recessed portion; 6. a boss portion; 7. a chute; 8. a second driving module; 9. a guide unit; 9a, a guide module; 9a1, guide roller; 10. a machine base; 11. a wind-up roll; 12. a third driving module; 13. a fourth driving module; 14. a tension assembly; 15. a straightening assembly; 16. a horizontal guide unit; 16a, a horizontal guide roller; 17. a vertical guide unit; 17a, vertical guide rollers; 18. a guide assembly; 19. a guide module;
100. a special-shaped wire.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
The utility model relates to an improvement to the cold rolling forming device of jumbo size abnormal shape wire rod. The improved cold rolling forming device has the advantages that through the two first cold rolling units arranged up and down and the two second cold rolling units arranged left and right, the two first working rolls and the two first supporting rolls which form the two first cold rolling units and the two second working rolls and the two second supporting rolls which form the two second cold rolling units form an eight-roll structure, and the large rolling force formed by the supporting rolls and the working rolls in a matched mode can simply and efficiently realize cold rolling forming processing of large-size wires; the cold rolling forming device with the cold rolling forming mechanism is provided with at least two groups of cold rolling forming mechanisms, can realize continuous forming and winding of wires, and is high in processing efficiency.
Referring to fig. 4, a cold rolling forming device for large-size special-shaped wire rods is shown, and the cold rolling forming device comprises an unwinding mechanism (not shown in the figure), a winding mechanism, and five sets of cold rolling forming mechanisms located between the unwinding mechanism and the winding mechanism. Here, the cold-rolling forming device further includes a control mechanism (not shown in the figure) for controlling the operation of the unwinding mechanism, the cold-rolling forming mechanism and the winding mechanism, and the total assembly power is 400 Kw. The control mechanism is a control box in the prior art, and the specific structure is not described in detail.
As shown in fig. 1 to 3, the cold rolling forming mechanism includes a frame 1, two first cold rolling units 2 arranged on the frame 1 along a vertical direction, and two second cold rolling units 3 arranged on the frame 1 along a horizontal direction, wherein the two first cold rolling units 2 and the two second cold rolling units 3 can cooperate to form a cavity for the profile wire 100 to pass through.
Further, the first cold rolling unit 2 comprises a first supporting roller 2a and a first working roller 2b which are rotatably arranged and mutually abutted, the second cold rolling unit 3 comprises a second supporting roller 3a and a second working roller 3b which are rotatably arranged and mutually abutted, the first working roller 2b and the second working roller 3b can respectively abut against the peripheral side part of the special-shaped wire 100 in a matched mode, the rotating axes of the first supporting roller 2a and the first working roller 2b extend along the horizontal direction and are perpendicular to the passing direction of the special-shaped wire 100, and the rotating axes of the second supporting roller 3a and the second working roller 3b extend along the vertical direction.
Specifically, the upper side and the lower side of the special-shaped wire 100 are rolled in a matching way through a first supporting roller 2a and a first working roller 2b, the first working roller 2b is pressed against the upper surface and the lower surface of the special-shaped wire 100, and the first supporting roller 2a is pressed against the first working roller 2 b; on the left and right sides of the special-shaped wire 100, the second support roller 3a and the second working roller 3b are matched for rolling, the second working roller 3b is pressed against the left and right surfaces of the special-shaped wire 100, and the second support roller 3a is pressed against the second working roller 3 b. Therefore, the supporting force of the supporting roller is increased on the basis of the rolling force of the working roller, the working roller and the supporting roller are matched to form large rolling force, the cold rolling forming of large-size wire rods is easily realized, and the complex processing technology in the prior art is not needed.
The cold rolling forming device using the cold rolling forming mechanism is sequentially arranged through the five groups of cold rolling forming mechanisms to form the five-linkage mechanism, so that the special-shaped wire 100 can be subjected to multi-pass cold rolling, the forming effect is better, the continuous forming and winding of the wire can be realized, the processing efficiency is high, and the final production speed can reach 50 m/min.
Preferably, the roller diameter of the first working roller 2b is smaller than that of the first support roller 2a, and the roller diameter of the second working roller 3b is smaller than that of the second support roller 3 a. Specifically, the roller diameter of the first support roller 2a is 320mm, the roller diameter of the first work roller 2b is 260mm, the roller diameter of the second support roller 3a is 160mm, and the roller diameter of the second work roller 3b is 150 mm. In this way, by reducing the roll diameter of the work roll, the area of the work roll contacting the profile wire 100 is reduced, and the rolling force on the profile wire 100 is further increased. And because the working roll with the smaller roll diameter can not bear larger force, the supporting roll with the larger roll diameter is matched, and the cold rolling purpose of the application can be well realized.
In the present embodiment, the cold-rolling forming mechanism further includes a first driving module 4 for driving the first work roll 2b to rotate. The first driving module 4 is a driving motor, and the driving motor is connected to one end of the first working roll 2b through a coupling. Therefore, the motor can drive the first working roller 2b to actively rotate, the special-shaped wire 100 is brought into the cavity, the friction resistance of the special-shaped wire 100 passing through the cavity is greatly reduced, and the forming capacity of the special-shaped wire 100 is improved.
Further, as shown in fig. 1, the cold-rolling forming mechanism of this embodiment further includes a concave portion 5 provided on the first support roller 2a and the second support roller 3a around the circumferential direction of the first support roller 2a and the second support roller 3a, and a convex portion 6 provided on the first work roller 2b and the second work roller 3b around the circumferential direction of the first work roller 2b and the second work roller 3b, wherein the concave portion 5 and the convex portion 6 can be matched with each other, and the convex portion 6 can be fittingly abutted against the side portion of the profile wire 100 in the axial direction. The convex part 6 can be designed into different shapes according to requirements, is used for abutting against the surface of the wire rod and realizing the grooving of the surface of the wire rod in the rotating process of the working roller, and the wire rod is processed into the special-shaped wire rod with different section shapes. Wherein, depressed part 5 and bellying 6 are respectively for setting up the interior concave surface on first backing roll 2a and second backing roll 3a and set up the outer convex surface on first worker roller 2b and second worker roller 3b, and the outer convex surface just in time can inlay in the interior concave surface, can not influence the rotation in opposite directions of backing roll and worker roller.
In the present embodiment, the cold rolling forming mechanism further includes a chute 7 opened on the rack 1 along the vertical direction, and the cold rolling unit 2 located above the shaped wire 100 can be driven by the second driving module 8 to slide in the chute 7. Wherein the second driving module 8 is a pressing device in the prior art, and is used for driving the cold rolling unit 2 to slide and press the cold rolling unit against the upper side part of the special-shaped wire 100.
As shown in fig. 2-3, the cold rolling forming mechanism of this embodiment further includes a guiding unit 9 located at one side of the frame 1, the guiding unit 9 includes a plurality of guiding modules 9a sequentially arranged along the passing direction of the special-shaped wire 100, each guiding module 9a includes two guiding rollers 9a1 rotatably disposed at two sides of the passing direction of the special-shaped wire, the rotation axes of the two guiding rollers 9a1 extend along the vertical direction, and the two guiding rollers 9a1 respectively can be engaged with two sides of the special-shaped wire 100 in the axial direction. In this way, after the shaped wire 100 is shaped by the cold-rolling shaping mechanism and output, the shaped wire 100 can pass through the guide unit 9, and the straightness of the large-sized shaped wire 100 can be ensured.
In this embodiment, the unwinding mechanism includes an unwinding roller (not shown in the figure) which is rotatably disposed, and the special-shaped wire 100 is wound around the unwinding roller, and the unwinding roller is driven by a motor to rotate, so as to unwind the special-shaped wire 100.
As shown in fig. 5, the winding mechanism includes a base 10, a winding roller 11 rotatably and slidably disposed on the base 10, a third driving module 12 for driving the winding roller 11 to rotate, and a fourth driving module 13 for driving the winding roller 11 to slide, a rotation axis of the winding roller 11 extends along a horizontal direction and is perpendicular to a passing direction of the special-shaped wire 100, and a sliding direction of the winding roller 11 is consistent with an extending direction of the rotation axis thereof. Here, the third driving module 12 and the fourth driving module 13 are both motors, wherein an output end of the third driving module 12 is connected to the wind-up roll 11 through a speed reducer, and is used for driving the wind-up roll 11 to rotate and wind the special-shaped wire 100, an output end of the fourth driving module 13 is connected to a screw rod, and the left and right movement of the wind-up roll 11 is realized through the cooperation of the motors and the screw rod, so that the uniform winding of the special-shaped wire 100 on the wind-up roll 11 is realized.
The cold rolling forming device also comprises a plurality of tension assemblies 14, straightening assemblies 15 and guide assemblies 18 which are respectively positioned between every two groups of cold rolling forming mechanisms. Wherein the tension assembly 14 is a tension bracket in the prior art and is used for realizing the tension of the special-shaped wire 100; the straightening component 15 is a straightening machine in the prior art and is used for straightening the special-shaped wire 100; the guiding assembly 18 comprises roll shafts respectively arranged at the left side and the right side of the special-shaped wire 100 and is used for realizing the guiding of the special-shaped wire 100 by matching with the guiding unit 9.
Further, as shown in fig. 6, the cold rolling forming apparatus further includes a winding guide mechanism located between the cold rolling forming mechanism and the winding mechanism, for realizing the winding guide of the special-shaped wire 100. The winding guide mechanism comprises two groups of horizontal guide units 16 arranged along the passing direction of the special-shaped wire 100, and a vertical guide unit 17 positioned between the two groups of horizontal guide units 16, wherein each horizontal guide unit 16 comprises a plurality of horizontal guide rollers 16a arranged at intervals on two sides of the horizontal direction of the special-shaped wire 100, each vertical guide unit 17 comprises a plurality of vertical guide rollers 17a arranged at intervals on two sides of the vertical direction of the special-shaped wire 100, the rotating axis of each horizontal guide roller 16a extends along the vertical direction, the rotating axis of each vertical guide roller 17a extends along the horizontal direction, and the horizontal guide rollers 16a and the vertical guide rollers 17a can be respectively matched with the peripheral side parts of the special-shaped wire 100 to abut against.
Here, the horizontal guide rollers 16a located on both sides of the profile wire 100 in the horizontal direction are sequentially disposed in a staggered manner, the left horizontal guide roller 16a corresponds to the gap between the two right adjacent horizontal guide rollers 16a, and the right horizontal guide roller 16a corresponds to the gap between the two left adjacent horizontal guide rollers 16 a.
A guiding module 19 is further arranged between the rolling guiding mechanism and the rolling mechanism, and the guiding module 19 comprises two guiding rollers positioned at two sides of the special-shaped wire 100 and used for being matched with the rolling guiding mechanism to realize the guiding of the special-shaped wire 100.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A cold rolling forming mechanism of jumbo size abnormal shape wire rod which characterized in that: the special-shaped wire cold rolling device comprises a rack (1), two first cold rolling units (2) arranged on the rack (1) along the vertical direction and two second cold rolling units (3) arranged on the rack (1) along the horizontal direction, wherein the two first cold rolling units (2) and the two second cold rolling units (3) can be matched to form a cavity for a special-shaped wire (100) to pass through;
the first cold rolling unit (2) comprises a first supporting roller (2a) and a first working roller (2b) which are rotatably arranged and mutually abutted, the second cold rolling unit (3) comprises a second supporting roller (3a) and a second working roller (3b) which are rotatably arranged and mutually abutted, the first working roller (2b) and the second working roller (3b) can respectively abut against the peripheral side part of the special-shaped wire (100) in a matched mode, the rotating axes of the first supporting roller (2a) and the first working roller (2b) extend along the horizontal direction and are perpendicular to the passing direction of the special-shaped wire (100), and the rotating axes of the second supporting roller (3a) and the second working roller (3b) extend along the vertical direction;
the cold rolling forming mechanism further comprises a first driving module (4) for driving the first working roll (2b) to rotate.
2. The cold rolling forming mechanism for the large-size special-shaped wire rod as claimed in claim 1, wherein: the roller diameter of the first working roller (2b) is smaller than that of the first supporting roller (2a), and the roller diameter of the second working roller (3b) is smaller than that of the second supporting roller (3 a).
3. The cold rolling forming mechanism for the large-size special-shaped wire rod as claimed in claim 1, wherein: the cold rolling forming mechanism further comprises a concave part (5) arranged around the first supporting roller (2a) and/or the second supporting roller (3a) in the circumferential direction, and a convex part (6) arranged around the first working roller (2b) and/or the second working roller (3b) in the circumferential direction, wherein the concave part (5) and the convex part (6) can be matched with each other, and the first supporting roller (2a) and/or the second supporting roller (3a) are/is arranged on the first supporting roller (2a) and/or the second supporting roller (3a) in the circumferential direction.
4. The cold rolling forming mechanism for the large-size special-shaped wire rod as claimed in claim 3, wherein: the bulge (6) can be matched with and abutted against the axial side part of the special-shaped wire (100).
5. The cold rolling forming mechanism for the large-size special-shaped wire rod as claimed in claim 1, wherein: the cold rolling forming mechanism further comprises a sliding groove (7) which is arranged on the rack (1) along the vertical direction, one of the two first cold rolling units (2) can be arranged in the sliding groove (7) in a sliding mode, and the cold rolling forming mechanism further comprises a second driving module (8) which is used for driving one of the two first cold rolling units (2) to slide.
6. The cold rolling forming mechanism for the large-size special-shaped wire rod as claimed in claim 1, wherein: the cold rolling forming mechanism further comprises a guiding unit (9) located on one side of the rack (1), the guiding unit (9) comprises a plurality of groups of guiding modules (9a) which are sequentially arranged along the passing direction of the special-shaped wire (100), each group of guiding modules (9a) respectively comprises two rotatable guiding rollers (9a1) which are arranged on two sides of the passing direction of the special-shaped wire, the rotating axes of the two guiding rollers (9a1) extend along the vertical direction, and the two guiding rollers (9a1) can be respectively matched with the two axial side portions of the special-shaped wire (100) in a butting mode.
7. The utility model provides a cold rolling forming device of jumbo size abnormal shape wire rod, includes unwinding mechanism and winding mechanism, its characterized in that: the cold-rolling forming device further comprises at least two groups of cold-rolling forming mechanisms which are arranged between the unwinding mechanism and the winding mechanism and are defined in any one of claims 1 to 6.
8. The cold-rolling forming apparatus for large-size profiled wire as claimed in claim 7, wherein: winding mechanism includes frame (10), rotatable and slidable locates wind-up roll (11), the drive that is used for on frame (10) wind-up roll (11) pivoted third drive module (12) and be used for the drive the gliding fourth drive module (13) of wind-up roll (11), the axis of rotation of wind-up roll (11) extends and perpendicular along the horizontal direction the direction of passing through of heterotypic wire rod (100), the slip direction of wind-up roll (11) is unanimous rather than the direction of extension of axis of rotation.
9. The cold-rolling forming apparatus for large-size profiled wire as claimed in claim 7, wherein: the cold rolling forming device also comprises a plurality of tension assemblies (14) and straightening assemblies (15) which are respectively positioned between every two groups of cold rolling forming mechanisms.
10. The cold-rolling forming apparatus for large-size profiled wire as claimed in claim 7, wherein: the cold rolling forming device further comprises a rolling guide mechanism positioned between the cold rolling forming mechanism and the rolling mechanism, the rolling guide mechanism comprises two groups of horizontal guide units (16) arranged along the passing direction of the special-shaped wire (100) and a vertical guide unit (17) positioned between the two groups of horizontal guide units (16), the horizontal guide units (16) comprise a plurality of horizontal guide rollers (16a) arranged at two sides of the horizontal direction of the special-shaped wire (100) at intervals, the vertical guide units (17) comprise a plurality of vertical guide rollers (17a) arranged at two sides of the vertical direction of the special-shaped wire (100) at intervals, the rotating axis of the horizontal guide rollers (16a) extends along the vertical direction, the rotating axis of the vertical guide rollers (17a) extends along the horizontal direction, and the horizontal guide rollers (16a) and the vertical guide rollers (17a) can respectively and cooperatively abut against the special-shaped wire (100) The peripheral side portion of the wire (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021746670.5U CN212494546U (en) | 2020-08-20 | 2020-08-20 | Cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021746670.5U CN212494546U (en) | 2020-08-20 | 2020-08-20 | Cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device |
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| Publication Number | Publication Date |
|---|---|
| CN212494546U true CN212494546U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021746670.5U Active CN212494546U (en) | 2020-08-20 | 2020-08-20 | Cold rolling forming mechanism of jumbo size abnormal shape wire rod and use its cold rolling forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212494546U (en) |
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2020
- 2020-08-20 CN CN202021746670.5U patent/CN212494546U/en active Active
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