Iron wire straightening device for iron picture production
By designing a wire straightening device including mounting body, drive rod, roller, frame and ring sleeve, combined with drive assembly, limit assembly and locking assembly, the problem of cumbersome drum wear and replacement in the prior art is solved, and the roller is quickly replaced and locked, and the production efficiency is improved.
Patent Information
- Application Number
- CN202411373665.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-02-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When existing iron wire straightening devices deal with hard or impurities, the rollers are prone to wear, resulting in multiple rollers wear and tear at the same time, and all need to be replaced, and the replacement process is cumbersome.
A wire straightening device is designed, adopting a structure of a mounting body, a drive rod, a roller, a frame and a ring sleeve. Through the cooperation of the drive assembly, limit assembly and locking assembly, the roller can be quickly replaced and locked.
The rapid replacement and locking of the drum is achieved, which simplifies the replacement process, improves production efficiency, and reduces wear on the drum.
Smart Images

Figure CN119500912A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of iron painting production, in particular to an iron wire straightening device for iron painting production. Background Art
[0002] Iron painting production is a process of turning metal wire into pictures or decorations through artistic processing. The process combines metal processing technology and art design to create works with decorative and artistic value.
[0003] When producing iron paintings, a wire straightening device is required to straighten the wire first. In the prior art, a roller-type wire straightener is mostly used to straighten the wire. When the wire is hard or there are impurities such as rust on the wire, the friction between the roller and the wire is large, causing the roller to wear easily and need to be replaced.
[0004] In the prior art, rollers are mostly installed with bolts. When straightening hard iron wires or iron wires with impurities such as rust on the surface, multiple rollers on the straightener will wear out at the same time, resulting in the need to replace all of them. The bolt installation method used in the prior art is simple and quick for single replacement, but since there are mostly many rollers on the straightener, it is troublesome to unscrew and tighten the bolts one by one if all of them are replaced.
[0005] Therefore, a kind of iron wire straightening device for iron painting production is proposed. Summary of the invention
[0006] In view of the fact that the bolt installation method mentioned above or in the prior art is simple and quick for single replacement, but since most of the rollers on the straightener are large, it is troublesome to unscrew and tighten the bolts one by one if all are replaced, the present invention is proposed.
[0007] Therefore, the object of the present invention is to provide an iron wire straightening device for producing iron paintings.
[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:
[0009] The straightener comprises a mounting body, wherein the mounting body is divided into an upper frame and a lower frame, wherein the upper frame and the lower frame are both connected with a plurality of driving rods through a rotating shaft, wherein the plurality of driving rods are sleeved with rollers, wherein a mold frame is arranged on a side of the roller away from the upper frame, wherein the mold frame is provided with a plurality of ring sleeves;
[0010] The said frame is provided with a plug-in board, and the said plug-in board is provided with a limiting slot;
[0011] The mounting mechanism includes a plurality of first transverse plates arranged on the upper frame and the lower frame near the side of the driving rod, the first transverse plates are connected with a mounting plate, the mounting plate is provided with a plug-in slot and a mounting slot, the plug-in slot is communicated with the mounting slot, a driving assembly is arranged on the mounting plate, a limiting assembly connected to the driving assembly is arranged inside the mounting slot, and a locking assembly is arranged on the driving assembly for locking the driving assembly.
[0012] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the first horizontal plate and the mounting plate are arranged in an L shape, and one side of the mounting plate is in contact with the side surface of the mounting body.
[0013] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the end of the plug-in plate away from the frame is an inclined arc surface, and a plurality of limiting grooves are provided on the plug-in plate.
[0014] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, the driving assembly includes a driving handle arranged on one side of the mounting plate, a connecting rod is connected to the driving handle, and the connecting rod extends from one end of the driving handle to the inside of the mounting groove and is connected to a driving disk.
[0015] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the driving disk is provided with a first arc surface and a first plane surface.
[0016] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the driving disk is also provided with a second plane and a third plane.
[0017] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the limiting assembly includes a protruding block arranged inside the mounting groove, the protruding block is provided with a second arc surface and a fourth plane, the protruding block is connected to a first spring and a limiting rod, and one end of the first spring away from the protruding block is connected to the inner wall of the mounting groove;
[0018] The limiting groove matches the limiting rod.
[0019] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the locking assembly includes a connecting disk fixedly sleeved on the connecting rod, the side of the connecting disk close to the driving disk is connected to an extrusion plate, the extrusion plate is provided with a third arc surface, the installation groove is connected to a second spring, the second spring is connected to a slider at one end close to the connecting disk, the slider is connected to a locking block at a side away from the second spring, and the locking block is provided with two first locking grooves and two second locking grooves;
[0020] The second spring, the slider and the locking block are all slidably sleeved on the connecting rod;
[0021] The groove surfaces of the two first locking grooves and the two second locking grooves are both arc surfaces, and the two first locking grooves and the two second locking grooves are distributed in a rectangular shape.
[0022] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, the slider is rectangular.
[0023] As a preferred solution of the iron wire straightening device for iron painting production of the present invention, wherein: the depth of the first locking groove is greater than that of the second locking groove.
[0024] The beneficial effects of the iron wire straightening device for iron painting production of the present invention are as follows: by reversing the driving assembly, the driving assembly drives the limiting rod to disengage from the limiting groove through the limiting assembly, thereby unlocking the jig. After the jig is removed, the ring sleeve no longer limits the roller. At this time, the damaged roller is removed, and the intact roller is re-sheathed on the driving rod to achieve rapid replacement, and then by aligning and sheathing multiple ring sleeves on the jig on multiple driving rods, when the plug-in board on the jig is inserted into the plug-in groove, the driving assembly is rotated, and the driving assembly drives the limiting assembly to operate, so that the limiting rod on the limiting assembly enters the limiting groove, quickly locks the plug-in board, and then realizes locking of the jig and the ring sleeve on the jig, so that the ring sleeve cooperates with the rotating shaft to lock the roller, and the driving assembly drives the locking assembly to operate when running, and the locking assembly locks the driving assembly, thereby ensuring the stability of the limiting assembly locking the plug-in board. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0026] Figure 1 This is an overall schematic diagram of an iron wire straightening device for iron painting production.
[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the installation mechanism of the iron wire straightening device used in iron painting production.
[0028] Figure 3 This is a schematic diagram of the overall structure of the installation mechanism of the iron wire straightening device used in iron painting production.
[0029] Figure 4 This is a schematic diagram of the drive disk structure of the iron wire straightening device used in iron painting production.
[0030] Figure 5 This is a schematic diagram of the structure of the limiting components of the iron wire straightening device used in iron painting production.
[0031] Figure 6 This is a schematic diagram of the locking assembly structure of the iron wire straightening device used in iron painting production. DETAILED DESCRIPTION
[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0035] Example 1, reference Figure 1 to Figure 3, is the first embodiment of the present invention, which provides an iron wire straightening device for iron painting production, including a straightener 100, which includes a mounting body 101, the mounting body 101 is divided into an upper frame and a lower frame, the upper frame and the lower frame are connected with a plurality of driving rods 102 through a rotating shaft, and the plurality of driving rods 102 are sleeved with rollers 103, and a mold frame 104 is provided on the side of the roller 103 away from the upper frame, and a plurality of ring sleeves 105 are provided on the mold frame 104, and the mold frame 104 is sleeved on the end of the driving rod 102 away from the upper frame through the ring sleeve 105, and the ring sleeve 105 is rotatably connected to the mold frame 104, and a A plug-in board 104a is arranged, and a limiting slot 104b is arranged on the plug-in board 104a. The frame 104 is connected to the mounting body 101 through the plug-in board 104a and the limiting slot 104b and cooperates with the mounting mechanism 200. The mounting mechanism 200 includes a plurality of first transverse plates 201 arranged on the upper frame and the lower frame near the side of the driving rod 102. The first transverse plate 201 is connected to the mounting plate 202, and the mounting plate 202 is provided with a plug-in slot 203 and a mounting slot 204. The plug-in slot 203 is connected to the mounting slot 204. A driving component 205 is arranged on the mounting plate 202, and a limiting group connected to the driving component 205 is arranged inside the mounting slot 204. The locking assembly 207 is provided on the driving assembly 205 and is used to lock the driving assembly 205. By reversing the driving assembly 205, the driving assembly 205 drives the limiting rod 206e to disengage from the limiting groove 104b through the limiting assembly 206, thereby unlocking the jig 104. After the jig 104 is removed, the ring sleeve 105 no longer limits the roller 103. At this time, the damaged roller 103 is removed, and the intact roller 103 is re-sheathed on the driving rod 102 to achieve quick replacement. Then, by aligning and sheathing multiple ring sleeves 105 on the jig 104 on multiple driving rods 102, when the jig 104 When the plug-in board 104a is inserted into the plug-in slot 203, the driving assembly 205 is rotated, and the driving assembly 205 drives the limiting assembly 206 to operate, so that the limiting rod 206e on the limiting assembly 206 enters the limiting slot 104b, quickly locks the plug-in board 104a, and then locks the frame 104 and the ring sleeve 105 on the frame 104, so that the ring sleeve 105 cooperates with the rotating shaft to lock the roller 103, and the driving assembly 205 drives the locking assembly 207 to operate when it is running, and the locking assembly 207 locks the driving assembly 205, thereby ensuring the stability of the limiting assembly 206 locking the plug-in board 104a.
[0036] Among them, the connection between the roller 103 and the driving rod 102 and the way in which the driving rod 102 drives the roller 103 to rotate can be selectively set. For example, a rectangular bar is set on the driving rod 102, and a rectangular groove is formed on the roller 103. The driving rod 102 drives the rectangular bar to rotate, and the rectangular bar drives the roller 103 to rotate by contacting the inner wall of the rectangular groove on the roller 103. In this way, the rotating shaft and the ring sleeve 105 limit the roller 103. Other better ways are also possible.
[0037] Furthermore, the first transverse plate 201 and the mounting plate 202 are arranged in an L shape, one side of the mounting plate 202 is fitted with the side of the mounting body 101, and the first transverse plate 201 is connected to the upper frame or the lower frame by bolts. In the prior art, the upper frame or the lower frame can be adjusted according to the different diameters of the iron wire, and the mounting plate 202 is installed on the upper frame or the lower frame, so that the device can be adjusted accordingly when the position of the upper frame or the lower frame is adjusted. At the same time, the first transverse plate 201 and the mounting plate 202 are arranged in an L shape, so that the mounting plate 202 shares the torque exerted on the first transverse plate 201, thereby increasing the stability of the device.
[0038] Furthermore, the end of the plug-in plate 104a away from the frame 104 is an inclined arc surface, and a plurality of limiting grooves 104b are provided on the plug-in plate 104a. By providing the end of the plug-in plate 104a away from the frame 104 as an inclined arc surface, it is convenient for the plug-in plate 104a to be inserted into the interior of the plug-in groove 203. At the same time, by providing a plurality of limiting grooves 104b, the device can still be used when replacing rollers 103 of different sizes.
[0039] When in use, the limiting rod 206e on the limiting assembly 206 is driven by the driving assembly 205 to disengage from the limiting groove 104b to unlock the frame 104. After the frame 104 is removed, the ring sleeve 105 no longer limits the roller 103. The damaged roller 103 is removed and the intact roller 103 is re-sheathed on the driving rod 102 to achieve quick replacement. Then, by aligning and sheathing multiple ring sleeves 105 on the frame 104 on multiple driving rods 102, when the plug-in board 104a on the frame 104 is inserted into the plug-in groove 203, the roller 103 is re-sheathed. By rotating the driving component 205, the driving component 205 drives the limiting component 206 to operate, so that the limiting rod 206e on the limiting component 206 enters the limiting groove 104b, quickly locks the plug-in board 104a, and then realizes the locking of the frame 104 and the ring sleeve 105 on the frame 104, so that the ring sleeve 105 cooperates with the rotating shaft to lock the roller 103, and the driving component 205 drives the locking component 207 to operate when it is running, and the locking component 207 locks the driving component 205, thereby ensuring the stability of the limiting component 206 locking the plug-in board 104a.
[0040] In summary, unlike the existing method of bolt installation, the existing technology of quickly installing and removing the roller 103 by bolts is simple and fast, but is only limited to a single roller 103, while the present solution is used to unlock and lock multiple rollers 103, and is simple and fast.
[0041] Example 2, reference Figure 2 to Figure 6 , which is the second embodiment of the present invention. Different from the previous embodiment, the driving component 205 in this embodiment includes a driving handle 205a arranged on one side of the mounting plate 202, and the driving handle 205a is provided with anti-slip grooves. The driving handle 205a is connected to a connecting rod 205b, and one end of the connecting rod 205b away from the driving handle 205a extends to the inside of the mounting groove 204 and is connected to a driving disk 205c.
[0042] Furthermore, a first arc surface 205c-1 and a first plane 205c-2 are provided on the driving disk 205c, and a second plane 205c-3 and a third plane 205c-4 are also provided on the driving disk 205c. The first arc surface 205c-1 is an elliptical arc surface, which is used to lift the protruding block 206a. The first plane 205c-2 is a supporting surface, which is used to stably support the protruding block 206a. The second plane 205c-3 and the third plane 205c-4 are respectively used to limit the clockwise and counterclockwise rotation of the driving disk 205c.
[0043] Furthermore, the limiting assembly 206 includes a protruding block 206a arranged inside the mounting groove 204, the protruding block 206a is provided with a second arc surface 206b and a fourth plane 206c, the protruding block 206a is connected to a first spring 206d and a limiting rod 206e, one end of the first spring 206d away from the protruding block 206a is connected to the inner wall of the mounting groove 204, and the limiting groove 104b is matched with the limiting rod 206e.
[0044] The rest of the structure is the same as that of Example 1.
[0045] When in use, by rotating the driving handle 205a by 90 degrees, the driving handle 205a drives the connecting rod 205b to rotate, and the connecting rod 205b drives the driving disk 205c to rotate, and the first arc surface 205c-1 on the driving disk 205c contacts the second arc surface 206b on the protruding block 206a, driving the protruding block 206a to rise, and the protruding block 206a drives the first spring 206d to be compressed, and at the same time, the protruding block 206a drives the limiting rod 206e to first pass through the installation groove 204 and enter the plug-in groove 203, and then enters the limiting groove 104b. When the first plane 205c-2 of the driving disk 205c contacts the end of the protruding block 206a, the driving disk 205c drives the limiting rod 206e to move to a suitable position in the limiting groove 104b through the protruding block 206a, and at this time, the second plane 205c-3 contacts the fourth plane 206c on the protruding block 206a, so that the driving disk 205c can no longer rotate, and the plug board 104a is locked;
[0046] On the contrary, reverse the driving handle 205a by 90 degrees. When the driving handle 205a drives the driving disk 205c to reverse through the connecting rod 205b, when the first arc surface 205c-1 on the driving disk 205c contacts the protruding block 206a, the protruding block 206a is reset under the elastic force of the first spring 206d, and the protruding block 206a drives the limiting rod 206e to disengage from the inside of the limiting groove 104b, thereby releasing the lock on the plug board 104a. When the third plane 205c-4 contacts the side of the protruding block 206a, the limiting rod 206e is completely disengaged from the inside of the limiting groove 104b.
[0047] In summary, by rotating the driving handle 205a 90 degrees, the driving handle 205a can drive the limiting rod 206e to insert into the limiting groove 104b and disengage from the limiting groove 104b through the connecting rod 205b and the driving disk 205c, thereby realizing the locking and unlocking of the template connected to the plug-in board 104a, which is simple and quick.
[0048] Example 3, reference Figure 2 to Figure 6, which is the third embodiment of the present invention. Different from the previous embodiment, the locking assembly 207 in this embodiment includes a connecting disk 207a fixedly sleeved on the connecting rod 205b, and two extrusion plates 207b are connected to the side of the connecting disk 207a close to the driving disk 205c. The ends of the two extrusion plates 207b away from the connecting disk 207a are both provided with a third arc surface 207c, and the inside of the mounting groove 204 is connected to a second spring 207d, and the end of the second spring 207d close to the connecting disk 207a is connected to a sliding Block 207e, the slider 207e is connected to a locking block 207f on the side away from the second spring 207d, and two first locking grooves 207g and two second locking grooves 207h are provided on the locking block 207f. The second spring 207d, the slider 207e and the locking block 207f are all slidably mounted on the connecting rod 205b, and the groove surfaces of the two first locking grooves 207g and the two second locking grooves 207h are both arc surfaces, and the two first locking grooves 207g and the two second locking grooves 207h are distributed in a rectangular shape.
[0049] Among them, the side where the driving handle 205a and the connecting disk 207a are close to each other are respectively fitted with the outer surface of the mounting block and the inner wall of the mounting groove 204, ensuring the position of the driving component 205, avoiding the sliding of the connecting rod 205b, the connecting disk 207a and the driving disk 205c, and at the same time, ensuring the connection between the extrusion plate 207b and the locking block 207f.
[0050] Furthermore, the slider 207e is rectangular, and the mounting groove 204 corresponding to the slider 207e is also rectangular. The rectangular setting makes it possible for when the connecting disk 207a drives the extrusion plate 207b to rotate, and the third arc surface 207c on the extrusion plate 207b contacts the inner wall of the first locking groove 207g or the second locking groove 207h, it will not drive the locking block 207f and the slider 207e to rotate, thereby ensuring that the extrusion plate 207b accurately enters the second locking groove 207h from the first locking groove 207g or enters the first locking groove 207g from the second locking groove 207h, thereby locking the drive assembly 205 and ensuring the stability of the second spring 207d.
[0051] Furthermore, the depth of the first locking groove 207g is greater than that of the second locking groove 207h.
[0052] The rest of the structure is the same as that of Example 2.
[0053] In the initial state, the two extrusion plates 207b are respectively located inside the two first locking grooves 207g, and the template is not installed at this time;
[0054] When in use, when the driving handle 205a drives the connecting rod 205b to rotate, the connecting rod 205b drives the connecting disk 207a to rotate, and the connecting disk 207a drives the extrusion plate 207b to rotate, so that the third arc surface 207c on the extrusion plate 207b contacts the groove surface of the first locking groove 207g, so that the locking block 207f moves in the direction of the driving disk 205c, and the locking block 207f drives the second spring 207d to be compressed through the slider 207e. When the extrusion block enters the second locking groove 207h, the second spring 207d is still in a compressed state. Under the elastic force of the second spring 207d, the slider 207e is pressed and contacted with the extrusion block through the second locking groove 207h on the locking block 207f, so as to lock the extrusion plate 207b, thereby locking the connecting disk 207a connected to the extrusion plate 207b, and locking the driving disk 205c connected through the connecting rod 205b and the connecting disk 207a;
[0055] When the driving handle 205a is reversed, the driving handle 205a drives the extrusion plate 207b to reverse through the connecting rod 205b and the connecting plate 207a, so that the extrusion plate 207b rotates from the inside of the second locking groove 207h to the inside of the first locking groove 207g. At this time, the second spring 207d is still in a natural state, and the slider 207e is only in contact with the extrusion block through the second locking groove 207h on the locking block 207f.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. An iron wire straightening device for iron painting production, characterized in that: include, A straightener (100) comprises a mounting body (101), wherein the mounting body (101) is divided into an upper frame and a lower frame, wherein the upper frame and the lower frame are both connected to a plurality of driving rods (102) via a rotating shaft, wherein a roller (103) is sleeved on each of the plurality of driving rods (102), wherein a mold frame (104) is disposed on a side of the roller (103) away from the upper frame, wherein the mold frame (104) is provided with a plurality of ring sleeves (105); The mold frame (104) is provided with a plug-in board (104a), and a limiting groove (104b) is provided on the plug-in board (104a); The mounting mechanism (200) comprises a plurality of first transverse plates (201) arranged on one side of an upper frame and a lower frame close to a driving rod (102); a mounting plate (202) is connected to the first transverse plate (201); a plug-in slot (203) and a mounting slot (204) are provided on the mounting plate (202); the plug-in slot (203) is connected to the mounting slot (204); a driving component (205) is arranged on the mounting plate (202); a limit component (206) connected to the driving component (205) is arranged inside the mounting slot (204); and a locking component (207) is arranged on the driving component (205) for locking the driving component (205).
2. The iron wire straightening device for iron painting production according to claim 1, characterized in that: The first transverse plate (201) and the mounting plate (202) are arranged in an L shape, and one side of the mounting plate (202) is in contact with the side surface of the mounting body (101).
3. The iron wire straightening device for iron painting production according to claim 1 or 2, characterized in that: One end of the plug board (104a) away from the frame (104) is an inclined arc surface, and a plurality of limiting grooves (104b) are provided on the plug board (104a).
4. The iron wire straightening device for iron painting production according to claim 3, characterized in that: The driving assembly (205) comprises a driving handle (205a) disposed on one side of the mounting plate (202), the driving handle (205a) being connected to a connecting rod (205b), and one end of the connecting rod (205b) away from the driving handle (205a) extending into the interior of the mounting groove (204) and being connected to a driving disk (205c).
5. The iron wire straightening device for iron painting production according to claim 4, characterized in that: The driving disk (205c) is provided with a first arc surface (205c-1) and a first plane (205c-2).
6. The iron wire straightening device for iron painting production according to claim 4 or 5, characterized in that: The driving disk (205c) is also provided with a second plane (205c-3) and a third plane (205c-4).
7. The iron wire straightening device for iron painting production according to claim 6, characterized in that: The limiting assembly (206) comprises a protruding block (206a) arranged inside the installation groove (204), the protruding block (206a) is provided with a second arc surface (206b) and a fourth plane (206c), the protruding block (206a) is connected to a first spring (206d) and a limiting rod (206e), and one end of the first spring (206d) away from the protruding block (206a) is connected to the inner wall of the installation groove (204); The limiting groove (104b) matches the limiting rod (206e).
8. The iron wire straightening device for iron painting production according to claim 7, characterized in that: The locking assembly (207) comprises a connecting disk (207a) fixedly sleeved on the connecting rod (205b); a side of the connecting disk (207a) close to the driving disk (205c) is connected to an extrusion plate (207b); a third arc surface (207c) is provided on the extrusion plate (207b); a second spring (207d) is connected inside the mounting groove (204); an end of the second spring (207d) close to the connecting disk (207a) is connected to a slider (207e); a side of the slider (207e) away from the second spring (207d) is connected to a locking block (207f); and the locking block (207f) is provided with two first locking grooves (207g) and two second locking grooves (207h); The second spring (207d), the slider (207e) and the locking block (207f) are all slidably sleeved on the connecting rod (205b); The groove surfaces of the two first locking grooves (207g) and the two second locking grooves (207h) are both arc surfaces, and the two first locking grooves (207g) and the two second locking grooves (207h) are distributed in a rectangular shape.
9. The iron wire straightening device for iron painting production according to claim 8, characterized in that: The slider (207e) is rectangular.
10. The iron wire straightening device for iron painting production according to claim 8 or 9, characterized in that: The first locking groove (207g) is deeper than the second locking groove (207h).