Metal wire rolling device
By setting up a grinding assembly in the wire rolling device and realizing the back and forth movement and rotation of the roll, the problems of impurities embedded and roll wear during the rolling process are solved, and the wire quality and roll service life are improved.
Patent Information
- Application Number
- CN202510506481.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the rolling process, the hard steel particles on the surface of the rolling roll fall off and mix into the rolling area, causing the wire to be reworked or scrapped, and accelerate the wear of the rolling roll and increase maintenance costs.
A wire rolling device is designed, including an upper rolling roller shaft and a lower rolling roller shaft, and a grinding assembly is provided at both ends. The grinding assembly includes a grinding member and a vacuum cleaner. By moving and rotating the roll back and forth during the rolling process, grinding and cleaning of wear particles and impurities on the surface of the rolling roll is realized.
Effectively prevent impurities from embedded in the wire surface during rolling, reduce local defects and cracks, improve the quality of the wire, extend the service life of the roll, and reduce maintenance costs.
Smart Images
Figure CN120133307A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rolling, and particularly relates to a metal wire rolling device. Background Art
[0002] Rolling is a pressure processing method in which a metal blank passes through the gap (various shapes) between a pair of rotating rolling rolls. Due to the compression of the rolling rolls, the cross-section of the material is reduced and the length is increased. This is the most commonly used production method for producing steel, mainly used to produce profiles, plates, and pipes, and is divided into hot rolling and cold rolling.
[0003] Before hot rolling, an oxide layer is formed on the billet due to oxidation at high temperature. If not completely removed, the oxide scale will break and embed in the metal surface during rolling. When the rolling roll rubs against the metal wire, micron-sized metal particles are generated. The metal adheres to the grooves of the rolling roll and forms fragments after falling off. After long-term rolling of the steel rolling roll, the surface wear particles fall off and mix into the rolling area. The hard steel particles on the surface of the rolling roll press grooves on the surface of the softer aluminum wire, and even cause microcracks. The foreign objects are briefly pressed in and then separated, leaving local depressions, resulting in rework or scrapping of the rolled metal wire. Moreover, the hard foreign objects accelerate the wear of the rolling roll and increase the maintenance cost. Summary of the Invention
[0004] The purpose of the present invention is to provide a metal wire rolling device, which has the advantages of being able to grind and clean the wear particles on the surface of the rolling roll shaft or the impurities adhered to its surface during the rolling process, preventing grooves from being pressed on the surface of the metal wire and even causing microcracks, and nursing the upper rolling roll shaft and the lower rolling roll shaft without affecting the rolling efficiency, effectively improving the quality of the rolled metal wire.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A metal wire rolling device includes a bracket equipped with an upper rolling roll shaft and a lower rolling roll shaft. The upper rolling roll shaft and the lower rolling roll shaft are respectively driven to rotate by a first driving rod and a second driving rod, and the upper rolling roll shaft and the lower rolling roll shaft can move along the first driving rod and the second driving rod. Grinding components are provided at both ends of the rolling roll shaft and the lower rolling roll shaft;
[0006] The grinding component includes a grinding piece that fits the surface of the rolling roll shaft, and a dust suction component is provided on one side of the grinding piece.
[0007] The upper rolling roll shaft and the lower rolling roll shaft rotate and reciprocate along the driving rod at the same time to roll the metal wire back and forth horizontally. During the reciprocating movement of the upper rolling roll shaft and the lower rolling roll shaft, the grinding piece grinds their surfaces.
[0008] Further, one end of the first driving rod is connected to the motor transmission shaft through a belt, and gears that mesh with each other are provided on both the first driving rod and the second driving rod.
[0009] Further, clamping grooves are provided on the outer surfaces of the first driving rod and the second driving rod, and clamping blocks corresponding to the clamping grooves are provided on the inner walls of the upper rolling roll shaft and the lower rolling roll shaft.
[0010] Further, screw rods are sleeved inside the first driving rod and the second driving rod, and the clamping blocks are installed in a matching manner with the screw rods through bearing plates.
[0011] Further, a gear set is installed on the bracket, and a swing gear that is movably engaged with the gear set is provided on the screw rod through a bearing.
[0012] Further, limiting plates are connected to both ends of the upper rolling roll shaft and the lower rolling roll shaft, and limiting grooves are provided on the limiting plates.
[0013] Further, a swing rod is connected to the bottom end of the swing gear, and the swing rod is inserted into the limiting groove.
[0014] Further, a linkage gear that meshes with the swing gear is sleeved on the screw rod.
[0015] Further, a cleaning layer that fits the surfaces of the upper rolling roll shaft and the lower rolling roll shaft is provided behind the grinding part.
[0016] Further, the dust suction assembly includes an outer housing, and one side of the outer housing is connected to the dust suction part.
[0017] The technical effects and advantages of the present invention:
[0018] 1. The upper rolling roll shaft and the lower rolling roll shaft of the present invention can move along the first driving rod and the second driving rod. Moving the rolling rolls changes the contact arc length and the distribution of the reduction amount, disperses the stress concentration in the deformation zone, improves the deformation uniformity, reduces the local defects of the metal wire, the metal wire can homogenize the deformation difference between the edge and the center, effectively reduces the edge cracks, and by moving the roll shafts back and forth during the rolling process, it avoids local excessive thinning of the metal wire, effectively inhibits wrinkles. During the rolling process, the upper rolling roll shaft and the lower rolling roll shaft move back and forth periodically or continuously along the axis. The movement of the rolling rolls promotes more uniform stress release. Moving the rolling rolls changes the deformation path, reduces the accumulation of this residual stress, improves the dimensional stability of the product, and optimizes the contact in the deformation zone by moving the rolling rolls, reducing the local high-stress area.
[0019] 2. By providing grinding components at both ends of the upper rolling roller shaft and the lower rolling roller shaft, and cooperating with the reciprocating horizontal movement of the upper rolling roller shaft and the lower rolling roller shaft, the present invention can grind and clean the worn particles on the surface of the rolling roller shaft or the impurities adhered to its surface during the rolling process, preventing grooves from being pressed on the surface of the metal wire and even causing microcracks. Without affecting the rolling efficiency, the upper rolling roller shaft and the lower rolling roller shaft are cared for, effectively improving the quality of the metal wire after rolling. The grinding part grinds and cleans its surface, and the cleaning residues fall into the outer cover shell and are sucked and cleaned by the dust suction part. Even if some large particles or particles that the dust suction part fails to suck away fall from the gap between the outer cover shell and the roller shaft, the falling position is far from the metal wire rolling position and will not affect the metal wire, meeting the requirement of cleaning while rolling, improving efficiency, and greatly reducing the probability of metal wire defects or scrapping.
[0020] 3. The present invention realizes the reciprocating movement of the upper rolling roller shaft and the lower rolling roller shaft through the forward and reverse rotation of the lead screw. By moving through the limit groove, the swing angle of the swing gear is controlled, and the meshing state between the swing gear and the first gear and the second gear is changed. It can drive the rotation of the upper rolling roller shaft and the lower rolling roller shaft while also driving the reciprocating movement of the upper rolling roller shaft and the lower rolling roller shaft. With the design of using a single motor to simultaneously drive the rotation of the upper and lower rolling rollers and their reciprocating movement along the axis, through mechanical coupling and intelligent control, compound movement is achieved, saving the driving cost, improving the synchronization accuracy and control efficiency at the same time, and significantly improving the rolling accuracy, energy efficiency and reliability while simplifying the structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;
[0022] Figure 2 is a sectional view of the structure of the grinding component of the present invention;
[0023] Figure 3 is a sectional view of the butt joint between the roller shaft and the driving rod of the present invention;
[0024] Figure 4 is a schematic diagram of the overall structure of Embodiment 2 of the present invention;
[0025] Figure 5 is a half-sectional view of the connection structure between the lead screw, the driving rod and the roller shaft of the present invention;
[0026] Figure 6 is a schematic diagram of the overall installation structure of the gear set and the swing gear of the present invention;
[0027] Figure 7 is a schematic diagram of the butt joint between the limit plate and the swing gear of the present invention;
[0028] Figure 8 For the present invention Figure 6 is an enlarged view of part A;
[0029] Figure 9 For the present invention Figure 7 is an enlarged view of part B;
[0030] Figure 10 is a schematic diagram of the installation of the limit plate of the present invention.
[0031] In the figure:
[0032] 1. Rolling roll shaft; 11. First driving rod; 12. Bracket;
[0033] 2. Lower rolling roll shaft; 21. Second driving rod; 22. Card slot; 23. Card block; 24. Bearing connecting plate; 26. Limit plate; 261. Limit groove; 2611. Plate body;
[0034] 3. Grinding assembly; 31. Grinding part; 311. Cleaning layer; 32. Dust suction assembly;
[0035] 4. Lead screw; 41. Swing gear; 411. Swing rod; 42. Linkage gear; 5. Gear set; 51. First gear, second gear; 52. Second gear; 53. Third gear. Specific embodiments
[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0037] To better understand a wire rolling device provided in this embodiment, first, a brief introduction to the existing wire rolling equipment is given below. In the prior art, the wire is rolled by the opposite rotation of two roller shafts. When foreign objects adhere to the surface of the roller shafts, it is necessary to stop the machine to check the adhesion of the roller shafts and grind the surface of the rolling rollers. However, the wire has already been affected. If discovered in time, the amount of wire damage can be reduced, but it cannot be guaranteed that the problem can be discovered and solved in the first time. Moreover, the single rotation mode results in uneven stress distribution in the contact area between the rolling roller and the wire, especially forming differential deformation at the edge and center of the wire. In addition, the axial direction of the rolling roller cannot move, resulting in a fixed rolling range, causing continuous pressure on a local area and accelerating the wear of the rolling roller shaft, affecting the service life of the rolling roller shaft. The specification aims to solve the above technical problems. The embodiment of the present application provides a wire rolling device. During the rolling process, the upper rolling roller shaft 1 and the lower rolling roller shaft 2 move periodically or continuously back and forth along the axis. The movement of the rolling rollers promotes more uniform stress release. Moving the rolling rollers changes the deformation path, reduces the accumulation of this residual stress, improves the dimensional stability of the product, and optimizes the contact in the deformation zone by moving the rolling rollers to reduce local high-stress areas.
[0038] Example 1: Refer to Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a wire rolling device, including a bracket 12 installed with an upper rolling roller shaft 1 and a lower rolling roller shaft 2. The upper rolling roller shaft 1 and the lower rolling roller shaft 2 are respectively driven to rotate by a first driving rod 11 and a second driving rod 21, and the upper rolling roller shaft 1 and the lower rolling roller shaft 2 can move along the first driving rod 11 and the second driving rod 21. Moving the rolling rollers changes the contact arc length and the distribution of the reduction amount, disperses the stress concentration in the deformation zone, improves the deformation uniformity, reduces local defects of the wire, enables the wire to homogenize the deformation difference between the edge and the center, effectively reduces edge cracks, and avoids local excessive thinning of the wire by moving the roller shafts back and forth during the rolling process, effectively suppressing wrinkles.
[0039] Grinding components 3 are provided at both ends of the upper rolling roller shaft 1 and the lower rolling roller shaft 2. The grinding components 3 include grinding parts 31 that fit the surface of the rolling roller shaft 1. A dust suction component 32 is provided on one side of the grinding parts 31. By providing the grinding components 3 at both ends of the upper rolling roller shaft 1 and the lower rolling roller shaft 2 and cooperating with the reciprocatingly horizontally moving upper rolling roller shaft 1 and lower rolling roller shaft 2, it is realized that during the rolling process, the wear particles on the surface of the rolling roller shaft or the impurities adhering to its surface can be polished and cleaned, preventing grooves from being pressed on the surface of the wire and even causing micro-cracks, and caring for the upper rolling roller shaft 1 and the lower rolling roller shaft 2 without affecting the rolling efficiency, effectively improving the quality of the wire after rolling.
[0040] The dust suction assembly 32 includes an outer housing, and one side of the outer housing is connected to the dust suction member. It should be noted that during the traditional rolling process, the rolling positions of the upper rolling roller shaft 1 and the lower rolling roller shaft 2 are fixed. When there are adhesions on their surfaces, they must be in the rolling area. The cleaning member needs to be set at the rolling positions of the upper rolling roller shaft 1 and the lower rolling roller shaft 2. If the upper rolling roller shaft 1 and the lower rolling roller shaft 2 are ground during the rolling process, the debris is easily rotated with the upper rolling roller shaft 1 and the lower rolling roller shaft 2 and is likely to fall back onto the surface of the wire again, which will cause secondary damage to the wire. In this application, the grinding assembly 3 is set at both ends of the upper rolling roller shaft 1 and the lower rolling roller shaft 2. Since the upper rolling roller shaft 1 and the lower rolling roller shaft 2 in this application need to rotate and move back and forth during the rolling process, the positions of the roller shafts for rolling are not fixed. When rolling the wire, when the objects on the surface of the wire adhere to the surface of the roller shaft, due to the rotation and movement of the roller shaft, the adhered part of the roller shaft is moved away and will not come into secondary contact with the wire. When the position of the roller shaft with adhesions moves to the grinding member 31, the grinding member 31 grinds and cleans its surface, and the cleaning residue falls into the outer housing and is sucked and cleaned by the dust suction member. Even if some large particles or particles that the dust suction member fails to suck away fall through the gap between the outer housing and the roller shaft, the falling position is far from the wire rolling position and will not affect the wire, meeting the requirements of cleaning while rolling, improving efficiency, and greatly reducing the probability of wire defects or scrapping.
[0041] The upper rolling roller shaft 1 and the lower rolling roller shaft 2 rotate and reciprocate along the first driving rod 11 and the second driving rod 21 to roll the wire horizontally back and forth. During the reciprocating movement of the upper rolling roller shaft 1 and the lower rolling roller shaft 2, the grinding member 31 grinds their surfaces. A cleaning layer 311 that fits the surfaces of the upper rolling roller shaft 1 and the lower rolling roller shaft 2 is provided behind the grinding member 31. After the grinding member 31 trims the surface of the roller shaft, the cleaning layer 311 is used to wipe and clean the trimmed surface of the roller shaft to prevent small particles from adhering to the surface of the roller shaft and improve the processing efficiency of the roller shaft.
[0042] One end of the first driving rod 11 is connected to the motor conveying shaft through a belt. The first driving rod 11 and the second driving rod 21 are both provided with gears that mesh with each other. The outer surfaces of the first driving rod 11 and the second driving rod 21 are provided with card slots 22. On the inner walls of the upper rolling roller shaft 1 and the lower rolling roller shaft 2, clamping blocks 23 corresponding to the card slots 22 are provided. When the motor drives the first driving rod 11 to rotate, the second driving rod 21 is driven to rotate through the gears, and then the upper rolling roller shaft 1 and the lower rolling roller shaft 2 are driven to rotate. A driver for driving the upper rolling roller shaft 1 and the lower rolling roller shaft 2 to move along the first driving rod 11 and the second driving rod 21 is also provided. The driver can be docked with the upper rolling roller shaft 1 and the lower rolling roller shaft 2 through bearing parts, and drive their translation without affecting the rotation of the upper rolling roller shaft 1 and the lower rolling roller shaft 2. By inserting the clamping blocks 23 into the card slots 22, when the upper rolling roller shaft 1 and the lower rolling roller shaft 2 move horizontally, the clamping blocks 23 slide in the card slots 22, and the first driving rod 11 and the second driving rod 21 rotate. The cooperation between the clamping blocks 23 and the card slots 22 then drives the upper rolling roller shaft 1 and the lower rolling roller shaft 2 to rotate. Rotation and translation are achieved by two drives to roll the metal wire. The axial movement technology of the roller shaft dynamically regulates the stress-strain field in the deformation zone.
[0043] Embodiment 2: Refer to Figure 3 - Figure 10, which is the second embodiment of the present invention. This embodiment is different from the first embodiment. Inside both the first driving rod 11 and the second driving rod 21, there is a lead screw 4 sleeved. The clamping block 23 is installed in a matching manner with the lead screw 4 through a bearing plate. The two bearing plates are respectively arranged inside the first driving rod 11 and the second driving rod 21. When the lead screw 4 rotates, it drives the bearing plate, as well as the clamping block 23 and the roller shaft to move together. A gear set 5 is installed on the bracket 12. The gear set 5 includes a first gear 51 and a second gear 52. Both the first gear 51 and the second gear 52 are installed on the bracket 12 through a shaft rod, and both the first gear 51 and the second gear 52 are driven by a motor that drives the first driving rod 11 and the second driving rod 21 to rotate. A rocking gear 41 that meshes with the gear set 5 is arranged on the lead screw 4 through a bearing. At both ends of the upper rolling roller shaft 1 and the lower rolling roller shaft 2, there are connecting limit plates 26. A limit groove 261 is opened on the limit plate 26. At the bottom end of the rocking gear 41, there is a rocking rod 411 connected. To better understand this solution, now the installation method of the rocking gear 41 will be described. A rocking plate member is installed on the lead screw 4 through a bearing. The rocking gear 41 is installed on one end of the rocking plate member through a bearing. The other end of the rocking plate member is connected with the rocking rod 411. The rocking rod 411 is inserted and arranged in the limit groove 261. A linkage gear 42 that meshes with the rocking gear 41 is sleeved on the lead screw 4. Through the cooperation of the gear set 5 and the rocking gear 41, the first gear 51 drives the lead screw 4 to rotate forward, and the second gear 52 drives the lead screw 4 to rotate in reverse. Through the forward and reverse rotation of the lead screw 4, the upper rolling roller shaft 1 and the lower rolling roller shaft 2 move reciprocally. By moving through the limit groove 261, the rocking angle of the rocking gear 41 is controlled, and the meshing state between the rocking gear 41 and the first gear 51 and the second gear 52 is changed. It realizes that one motor can drive the upper rolling roller shaft 1 and the lower rolling roller shaft 2 to rotate, and at the same time, can also drive the upper rolling roller shaft 1 and the lower rolling roller shaft 2 to move reciprocally. The design of using a single motor to simultaneously drive the upper and lower rolling rollers to rotate and reciprocate along the axis realizes compound motion through mechanical coupling and intelligent control, saves the driving cost, and at the same time can improve the synchronization accuracy and control efficiency. While simplifying the structure, it significantly improves the rolling accuracy, energy efficiency and reliability.
[0044] The limit groove 261 is formed by penetrating from head to tail to form a closed annular groove. Both ends of the plate body 2611 in the closed annular groove are connected to the limit plate 26 through an outer bracket, and the limit groove 261 has pointed ends at both ends, and there is an extended pointed block at the pointed ends of the limit groove 261. When the rocking rod 411 moves to the pointed end of the limit groove 261, the pointed block is used to guide the rocking rod 411 so that it can move cyclically along the trajectory of the limit groove 261 and will not reciprocate in the groove on one side of the plate body 2611.
[0045] It should be noted that bearing connecting plates 24 are provided at one end of both the upper rolling roll shaft 1 and the lower rolling roll shaft 2. The limiting plate 26 is limit-connected to the bearing connecting plate 24 through a spring, and a groove for the limiting plate 26 to penetrate is provided on the bracket 12. A section of friction pad is provided on the surface of the limiting plate 26. The friction pad on the limiting plate 26 increases friction when moving in the groove, and is used to stretch or compress the spring. Such a setting is to utilize the elastic force of the spring to achieve automatic angle jump when changing the swing angle of the swing gear 41 by using the special shape of the limiting groove 261, so that when the swing rod 411 is at the pointed end of the limiting groove 261, it can automatically swing from one side groove of the limiting groove 261 to the other side groove under the movement of the limiting plate 26, and then complete the swing direction change of the swing gear 41.
[0046] Specifically, when the swing rod 411 is in the limiting groove 261 on the left side of the plate body 2611, its swing gear 41 is inclined and meshed with the first gear 51. The first gear 51 drives the swing gear 41 to rotate. The swing gear 41 drives the lead screw 4 to rotate through the linkage gear 42, and then drives the roll shaft to move on the lead screw 4 through the bearing plate and the clamping block 23. When the roll shaft moves, it drives the limiting plate 26 to move together. Since there is friction between the friction pad on the limiting plate 26 and the groove, at the beginning of the movement of the roll shaft, the limiting plate 26 moves slowly to stretch or compress the spring. When the roll shaft moves to the end of one side stroke of the lead screw 4, the friction pad on the limiting plate 26 passes through the groove. At this time, the swing rod 411 moves to the pointed end docking position of the limiting groove 261. The swing rod 411 is limited by the pointed end of the limiting groove 261, resulting in its rotation, and then drives the swing gear 41 to rotate and separate from the first gear 51. Before the swing rod 411 moves to the pointed end of the limiting groove 261, but the limiting plate 26 moves under the elastic force of the spring, causing the limiting groove 261 to move together, ensuring that the swing rod 411 enters the pointed end of the limiting groove 261. Under the action of the spring retraction, the pointed block at the pointed end of the limiting groove 261 is cooperatively driven, so that the swing rod 411 enters the limiting groove 261 on the right side of the plate body 2611. The swing rod 411 drives the swing gear 41 to rotate, and then drives the swing gear 41 to mesh with the second gear 52. The second gear 52 drives the lead screw 4 to reverse, and then drives the roll shaft to move reciprocally.
[0047] It should be noted that two sets of upper rolling roll shafts 1 and lower rolling roll shafts 2 are provided in this embodiment. Therefore, the gear set 5 further includes a third gear 53. The first gear 51, the second gear 52, and the third gear 53 are arranged side by side between the four swing gears 41. The four swing gears 41 are divided into two groups vertically. One group of swing gears 41 are respectively matched with the first gear 51 and the second gear 52 for driving, and the other group of swing gears 41 are respectively matched with the second gear 52 and the third gear 53 for driving. The driving method is the same as the above description, and will not be elaborated here.
[0048] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A wire rolling device, comprising a support (12) on which an upper rolling roller (1) and a lower rolling roller (2) are mounted, characterized in that: The upper rolling roller (1) and the lower rolling roller (2) are driven to rotate by a first driving rod (11) and a second driving rod (21) respectively, and the upper rolling roller (1) and the lower rolling roller (2) are capable of moving along the first driving rod (11) and the second driving rod (21), and grinding assemblies (3) are provided at both ends of the rolling roller (1) and the lower rolling roller (2); The grinding assembly (3) comprises a grinding piece (31) which is in contact with the surface of the rolling roller (1), and a dust collecting assembly (32) is arranged on one side of the grinding piece (31). The upper rolling roller (1) and the lower rolling roller (2) rotate and reciprocate along the driving rod (11) to roll the metal wire back and forth transversely. During the reciprocating movement of the upper rolling roller (1) and the lower rolling roller (2), the grinding piece (31) grinds the surface of the wire.
2. A metal wire rolling device according to claim 1, characterized in that: One end of the first driving rod (11) is connected to the motor conveying shaft via a belt, and the first driving rod (11) and the second driving rod (21) are both provided with gears that mesh with each other.
3. A metal wire rolling device according to claim 1, characterized in that: The first driving rod (11) and the second driving rod (21) are provided with a clamping groove (22) on their outer surfaces, and the upper rolling roller shaft (1) and the lower rolling roller shaft (2) are provided with a clamping block (23) corresponding to the clamping groove (22) on their inner walls.
4. A metal wire rolling device according to claim 1, characterized in that: The first driving rod (11) and the second driving rod (21) are both covered with a screw rod (4) inside, and the clamping block (23) is matched with the screw rod (4) through a bearing plate.
5. A metal wire rolling device according to claim 4, characterized in that: A gear set (5) is installed on the bracket (12), and a swing gear (41) movably meshed with the gear set (5) is arranged on the screw rod (4) via a bearing.
6. A metal wire rolling device according to claim 5, characterized in that: Both ends of the upper rolling roller shaft (1) and the lower rolling roller shaft (2) are connected to a limiting plate (26), and a limiting groove (261) is provided on the limiting plate (26).
7. A metal wire rolling device according to claim 6, characterized in that: The bottom end of the swing gear (41) is connected to a swing rod (411), and the swing rod (411) is inserted into the limiting groove (261).
8. A metal wire rolling device according to claim 7, characterized in that: The screw rod (4) is sleeved with a linkage gear (42) meshing with the swing gear (41).
9. A metal wire rolling device according to claim 1, characterized in that: A cleaning layer (311) is arranged behind the grinding piece (31) and is in contact with the surfaces of the upper rolling roller (1) and the lower rolling roller (2).
10. A metal wire rolling device according to claim 1, characterized in that: The dust collecting component (32) comprises an outer cover shell, one side of which is connected to the dust collecting component.