A traction machine for PC steel bar production

Abstract

The present application relates to steel bar traction equipment technical field, and disclose a kind of traction machine for PC steel bar production, including main body, the top of main body is fixedly connected with motor, the top of main body is fixedly connected with fixed plate.The present application reduces the skidding condition when traction sleeve and fixed ring meet the iron skin impurity and protrusion on the surface of steel bar in the process of pulling steel bar, in turn can reduce skidding while improving the stable conveying of steel bar in the process of traction in the process of pulling steel bar, reduce the subsequent steel bar production when the device skids in the process of pulling steel bar and appear in the traction mouth The situation of accumulation and bending, improve the traction efficiency and stability in the process of traction when steel bar is produced.

Description

Technical Field

[0001] This invention relates to the field of steel bar traction equipment technology, specifically a traction machine for PC steel bar production. Background Technology

[0002] PC steel bars are a type of prestressed concrete steel bar, also known as PC steel strand. Developed by Japan's High Frequency Hot Refining Co., Ltd. in the 1960s, PC steel bars belong to the intermediate strength grade of prestressed concrete. They possess high strength and toughness, low relaxation and strong concrete bond, good weldability and forging properties, and material savings. They are widely used in high-strength prestressed concrete centrifugal pipe piles, utility poles, viaduct piers, railway sleepers, and other prestressed components. The traction machine used in the production of PC steel bars is one of the important pieces of equipment.

[0003] During the production of PC steel bars, the steel bars need to be pulled and conveyed by a traction machine. Because the steel bars have a high temperature after heat treatment and the surface is uneven with local bulges, and there are also iron scale impurities on the surface of the steel bars, when the steel bars are pulled by the symmetrically arranged roller traction machine, in order to ensure the smoothness of the steel bar surface, the symmetrical rollers will not exert a large clamping and squeezing force on the steel bars. Because there are iron scale impurities on the surface of the steel bars, the presence of impurities can easily reduce the friction coefficient between the rollers and the steel bars when the rollers rotate, which can easily cause the rollers to slip during the process of pulling the steel bars. This can easily affect the stability of the rollers pulling the steel bars. At the same time, slippage can also easily cause the steel bars to accumulate and bend during the production process, affecting the traction efficiency of the steel bars. Summary of the Invention

[0004] The purpose of this invention is to provide a traction machine for PC steel bar production, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a traction machine for PC steel bar production, comprising a main body, a motor fixedly connected to the top of the main body, a fixing plate fixedly connected to the top of the main body, and further comprising:

[0007] A rotating mechanism is installed on the top of the main body to reduce slippage during the traction of the steel bar.

[0008] An auxiliary mechanism is installed on the side wall of the rotating mechanism to prevent impurities from remaining on the steel bar during the traction process.

[0009] Among them, when the main body pulls the steel bar, the rotating mechanism can prevent the device from slipping during the pulling process, and also prevent the steel bar from shaking when being pulled. The auxiliary mechanism can prevent impurities from remaining on the steel bar and causing scratches on the surface of the steel bar during the pulling process.

[0010] Furthermore, the main body includes two rotating disks rotatably connected to the fixed plate on the side away from the motor, and the bottom rotating disk is fixedly connected to the output end of the motor. The main body also includes:

[0011] The elastic component is installed on the side wall of the rotating disk;

[0012] Contact components are mounted on the sidewall of the elastic component;

[0013] The sliding component is mounted on the bottom of the contact component.

[0014] Furthermore, the rotating mechanism includes fixed columns disposed on the left and right outer walls of the rotating disk, and the rotating mechanism also includes:

[0015] The limiting component is installed on the side wall of the fixed column.

[0016] Furthermore, the auxiliary mechanism includes a hollow tube disposed on the side wall of the fixed column, and the auxiliary mechanism also includes:

[0017] The pusher component is installed inside the hollow tube.

[0018] Furthermore, the elastic component includes a central shaft fixedly connected to the side wall of the rotating disk, four spring telescopic rods fixedly connected to the outer surface of the central shaft, and a limit disk rotatably connected to the outer surface of the central shaft;

[0019] The bottom four spring telescopic rods are fixedly connected to a semi-circular plate at the uniform end away from the central axis. Several protruding limiting discs are fixedly connected to the side wall of the semi-circular plate, and the side closer to the motor is fixedly connected to the side wall of the fixed plate.

[0020] Limiting disc one is bolted to the side away from the rotating disc, which is connected to limiting disc two;

[0021] The bottom limiting plate two has a straight groove on its side wall, and a disc is fixedly connected to the front of the limiting plate two. A fixing sleeve is fixedly connected to the side of the disc near the rotating plate.

[0022] Furthermore, the contact assembly includes a traction sleeve rotatably connected to the outer surface of the four top spring telescopic rods. The outer surface of the traction sleeve has several semi-circular grooves, and the inner walls of the front and back sides of the semi-circular grooves are provided with curved grooves.

[0023] An arc-shaped plate is slidably connected between the two curved grooves. A spring plate is rotatably connected to the side wall of the arc-shaped plate. The end of the spring plate away from the arc-shaped plate slides through to the inner wall of the traction sleeve. The elastic end of the spring plate is fixedly connected to the inner wall of the traction sleeve.

[0024] A rotating plate is provided on the top outer wall of the traction sleeve, and the left side of the rotating plate is rotatably connected to the side wall of the limiting plate.

[0025] The front of the rotating plate 1 extends through to the outer wall of the limiting plate 2 and to the outside. An elastic shaft is fitted on the top outer wall of the extended end of the rotating plate 1. The top of the elastic shaft is rotatably connected to the side wall of the limiting plate 2.

[0026] The fixed sleeve is rotatably connected to the outer surface of the central shaft.

[0027] Furthermore, the sliding assembly includes a fixing ring rotatably connected to the outer surface of the four bottom semicircular plates. The inner wall of the fixing ring has several circular holes that fit into the protrusions on the outer surface of the semicircular plates.

[0028] A short shaft is fixedly connected to the side of the fixed ring away from the rotating disk. A sliding ring is slidably connected to the outer surface of the short shaft inside the straight groove. The outer surface of the sliding ring is fixedly connected to the bottom of the elastic shaft.

[0029] A C-shaped bracket is fixedly connected to the bottom of the sliding ring.

[0030] Furthermore, the two fixed columns are fixedly connected to the side wall of the fixed plate;

[0031] The limiting component includes a sliding plate that slides through the side wall of the fixed column. Several balls are rotatably connected to the side of the sliding plate near the traction sleeve. The balls are in contact with the side wall of the traction sleeve. Auxiliary springs are fixedly connected to both the front and back side walls of the sliding plate. The end of the auxiliary spring near the traction sleeve is fixedly connected to the side wall of the fixed column.

[0032] Furthermore, a limit frame is fixedly connected to the side wall of the right sliding plate, and the end of the limit frame away from the sliding plate is slidably connected to the outer surface of the elastic shaft.

[0033] The top of the fixed column is rotatably connected to a rotating plate two, and the end of the sliding plate one away from the traction sleeve is inclined.

[0034] Furthermore, the side of the hollow tube closest to the traction sleeve is fixedly connected to the side wall of the fixing plate, and two inclined grooves are opened on the top inner wall of the hollow tube.

[0035] The pushing component includes a movable ring that is slidably connected to the side wall of the hollow tube, and a semi-circular groove is provided on the side of the movable ring near the hollow tube;

[0036] The interior of the semi-circular groove has two limiting rods that slide together. The side wall of the limiting rods is fixedly connected to a second sliding plate, and the top of the second sliding plate is fixedly connected to a short rod. The short rod slides inside the inclined groove.

[0037] A return spring is fixedly connected to the top outer wall of the moving ring, and the end of the return spring away from the moving ring is fixedly connected to the side wall of the hollow tube.

[0038] The sliding plate is inclined at the end away from the hollow tube. Inclined plates are fixedly connected to both the front and back of the moving ring. The bottom of the inclined plates is in contact with the side wall of the C-shaped frame.

[0039] The present invention has the following beneficial effects:

[0040] 1. This invention, through the surface contact between the traction sleeve and the arc plate after rotation and the steel bar, and the slight upward sliding of the fixing ring, can increase the contact force between the steel bars and the overall clamping force during steel bar traction. It can also increase the friction between the traction sleeve and the fixing ring and the steel bar, reducing slippage when the traction sleeve and the fixing ring encounter iron impurities and protrusions on the surface of the steel bar during the traction process. This reduces slippage during steel bar traction, improves the stable conveying of the steel bar during the traction process, and reduces the accumulation and bending of the steel bar at the traction port during subsequent steel bar production due to slippage of the device. This improves the traction efficiency and stability during steel bar production.

[0041] 2. This invention, by moving the rings closer to the traction sleeve and supporting the surface of the steel bar, reduces the concentration of the pushing force of the fixed ring at the bottom of the steel bar on the bottom surface during the upward movement, thus preventing the steel bar from experiencing local bending deformation after being pushed by the fixed ring. By supporting the surface of the steel bar with two moving rings, the local bending of the steel bar during traction is reduced, while ensuring the stability and surface flatness of the steel bar during traction. This increases the contact area between the fixed ring and the traction sleeve and the steel bar, improves the traction stability of the steel bar, and further enhances the traction efficiency of the steel bar.

[0042] 3. This invention reduces the accumulation of impurities under the push of the moving ring, preventing the accumulated impurities from continuously scratching the surface of the steel bar when subjected to the rotation of the traction sleeve. This reduces the stress concentration points caused by impurities scratching the surface of the steel bar, which affects the stable strength of the steel bar during subsequent production and drawing. It also improves the production strength and surface flatness of the steel bar in subsequent production processes, and enhances the traction efficiency and strength during the steel bar production traction process.

[0043] 4. In this invention, the rotating plates on both sides of the traction sleeve push the traction sleeve. The rotating plates can provide some obstruction on the surface of the traction sleeve and reduce the jumping of the traction sleeve on the surface of the steel bar when it rotates with the steel bar during the transport of the steel bar due to excessive reset speed. This ensures stable contact between the traction sleeve and the steel bar, while reducing jumping and collision of the steel bar during traction and transport, thereby improving the traction efficiency of the traction sleeve on the steel bar and the stability of the direct contact between the traction sleeve and the steel bar.

[0044] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0048] Figure 3 This is a schematic diagram of the main body of the invention;

[0049] Figure 4 This is a partial cross-sectional schematic diagram of the contact component of the present invention;

[0050] Figure 5 This is a partial cross-sectional schematic diagram of the elastic component of the present invention;

[0051] Figure 6 This is an exploded view of the contact component of the present invention;

[0052] Figure 7 This is a schematic diagram of the limiting component of the present invention;

[0053] Figure 8 This is an exploded view of the sliding component of the present invention;

[0054] Figure 9 This is a partial cross-sectional schematic diagram of the auxiliary mechanism of the present invention;

[0055] Figure 10 This is an exploded view of the component driving the invention;

[0056] Figure 11 This is a schematic diagram of a partial cross-sectional structure of the hollow tube of the present invention;

[0057] Figure 12 This is a plan view of the contact component of the present invention.

[0058] The attached diagram lists the components represented by each number as follows:

[0059] In the diagram: 1. Main body; 101. Motor; 102. Rotating disk; 11. Elastic component; 111. Central shaft; 112. Spring telescopic rod; 113. Limiting disk one; 114. Limiting disk two; 12. Contact component; 1201. Fixed sleeve; 121. Traction sleeve; 122. Rotating plate one; 123. Elastic shaft; 124. Arc plate; 13. Sliding component; 131. Fixed ring; 132. Sliding ring; 133. C-shaped frame; 2. Rotating mechanism; 201. Fixed column; 21. Limiting component; 211. Sliding plate one; 212. Limiting frame; 213. Rotating plate two; 3. Auxiliary mechanism; 301. Hollow tube; 31. Pushing component; 311. Moving ring; 312. Inclined plate; 313. Sliding plate two. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0061] Please see Figure 1 - Figure 12 As shown, the present invention is a traction machine for PC steel bar production, including a main body 1, a motor 101 fixedly connected to the top of the main body 1, a fixing plate fixedly connected to the top of the main body 1, and further including:

[0062] Rotating mechanism 2 is installed on the top of the main body 1 to reduce slippage during the traction of the steel bar;

[0063] Auxiliary mechanism 3 is installed on the side wall of rotating mechanism 2 to prevent impurities from remaining on the steel bar during the traction process.

[0064] When the main body 1 pulls the steel bar, the rotating mechanism 2 can prevent the device from slipping during the pulling process, and also prevent the steel bar from shaking when being pulled. The auxiliary mechanism 3 can prevent impurities from remaining on the steel bar and causing scratches on the surface of the steel bar during the pulling process.

[0065] The main body 1 includes two rotating disks 102 rotatably connected to the fixed plate on the side away from the motor 101. The bottom rotating disk 102 is fixedly connected to the output end of the motor 101. The main body 1 also includes:

[0066] Elastic component 11 is installed on the side wall of rotating disk 102;

[0067] Contact component 12 is mounted on the side wall of elastic component 11;

[0068] Sliding component 13 is mounted on the bottom of contact component 12.

[0069] The rotating mechanism 2 includes fixed columns 201 disposed on the left and right outer walls of the rotating disk 102, and the rotating mechanism 2 also includes:

[0070] Restriction component 21 is installed on the side wall of fixed column 201.

[0071] The auxiliary mechanism 3 includes a hollow tube 301 disposed on the side wall of the fixed column 201, and the auxiliary mechanism 3 also includes:

[0072] A drive component 31 is installed inside the hollow tube 301.

[0073] The elastic component 11 includes a central shaft 111 fixedly connected to the side wall of the rotating disk 102, four spring telescopic rods 112 fixedly connected to the outer surface of the central shaft 111, and a limit disk 113 rotatably connected to the outer surface of the central shaft 111.

[0074] The four spring telescopic rods 112 at the bottom are fixedly connected to a semi-circular plate at one end away from the central axis 111. Several protruding limiting discs 113 are fixedly connected to the side wall of the semi-circular plate, and the side of the disc closest to the motor 101 is fixedly connected to the side wall of the fixing plate.

[0075] Limiting disc 113 is bolted to the side away from rotating disc 102, and limiting disc 2 114 is connected to it.

[0076] The bottom limiting plate 114 has a straight groove on its side wall. A disc is fixedly connected to the front of the limiting plate 114. A fixing sleeve 1201 is fixedly connected to the side of the disc near the rotating plate 102. First, the front end of the steel bar to be pulled is passed through the two hollow tubes 301 so that the steel bar is placed between the traction sleeve 121 and the fixing ring 131. Then, the motor 101 is started.

[0077] The contact assembly 12 includes a traction sleeve 121 rotatably connected to the outer surface of the four top spring telescopic rods 112. The outer surface of the traction sleeve 121 is provided with a number of semi-circular grooves, and the inner walls of the front and back sides of the semi-circular grooves are provided with curved grooves.

[0078] An arc plate 124 is slidably connected between the two curved grooves. A spring plate is rotatably connected to the side wall of the arc plate 124. The end of the spring plate away from the arc plate 124 slides through to the inner wall of the traction sleeve 121. The elastic end of the spring plate is fixedly connected to the inner wall of the traction sleeve 121.

[0079] The top outer wall of the traction sleeve 121 is provided with a rotating plate 122, and the left side of the rotating plate 122 is rotatably connected to the side wall of the limiting plate 113.

[0080] The front of the rotating plate 122 extends through the outer wall of the limiting plate 2 114 and extends to the outside. The top outer wall of the extended end of the rotating plate 122 is fitted with an elastic shaft 123, and the top of the elastic shaft 123 is rotatably connected to the side wall of the limiting plate 2 114.

[0081] The fixed sleeve 1201 is rotatably connected to the outer surface of the central shaft 111. When the fixed ring 131 at the bottom rotates, it will generate a pushing force to the left on the steel rod, causing the steel rod to slide between the fixed ring 131 and the traction sleeve 121. When the steel rod is conveyed by the pushing force generated by the rotation of the fixed ring 131, the conveying of the steel rod will drive the traction sleeve 121 to rotate.

[0082] The sliding assembly 13 includes a fixing ring 131 rotatably connected to the outer surface of the four semicircular plates at the bottom. The inner wall of the fixing ring 131 is provided with a plurality of circular holes, which are fitted into the protrusions on the outer surface of the semicircular plates.

[0083] A short shaft is fixedly connected to the side of the fixed ring 131 away from the rotating disk 102. A sliding ring 132 is slidably connected to the outer surface of the short shaft inside the straight groove. The outer surface of the sliding ring 132 is fixedly connected to the bottom of the elastic shaft 123.

[0084] A C-shaped bracket 133 is fixedly connected to the bottom of the sliding ring 132.

[0085] Two fixed posts 201 are fixedly connected to the side wall of the fixed plate;

[0086] The limiting component 21 includes a sliding plate 211 that slides through the side wall of the fixed column 201. Several balls are rotatably connected to the side of the sliding plate 211 near the traction sleeve 121. The balls are in contact with the side wall of the traction sleeve 121. Auxiliary springs are fixedly connected to both the front and back side walls of the sliding plate 211. The end of the auxiliary spring near the traction sleeve 121 is fixedly connected to the side wall of the fixed column 201. When the sliding plate 211 slides, the inclined surface of the side wall of the sliding plate 211 will separate from the rotating plate 213. Then, when the bottom of the traction sleeve 121 separates from the impurities or protrusions on the steel rod, the traction sleeve 121 will be reset under the elastic support of the four pairs of internal spring telescopic rods 112.

[0087] A limit frame 212 is fixedly connected to the side wall of the right sliding plate 211, and the end of the limit frame 212 away from the sliding plate 211 is slidably connected to the outer surface of the elastic shaft 123.

[0088] The top of the fixed column 201 is rotatably connected to the rotating plate 213. The end of the sliding plate 211 away from the traction sleeve 121 is inclined. When the traction sleeve 121 is reset, the traction sleeve 121 will drive the sliding plate 211 to reset through the C-shaped frame.

[0089] The hollow tube 301 is fixedly connected to the side wall of the fixing plate on the side near the traction sleeve 121, and two inclined grooves 302 are opened on the top inner wall of the hollow tube 301.

[0090] The pushing component 31 includes a movable ring 311 that is slidably connected to the side wall of the hollow tube 301. A semi-circular groove is provided on the side of the movable ring 311 near the hollow tube 301.

[0091] The interior of the semi-circular groove has two limiting rods that are slidably connected. The side wall of the limiting rod is fixedly connected to a sliding plate 313, and the top of the sliding plate 313 is fixedly connected to a short rod. The short rod is slidably connected inside the inclined groove 302.

[0092] A return spring is fixedly connected to the top outer wall of the moving ring 311, and the end of the return spring away from the moving ring 311 is fixedly connected to the side wall of the hollow tube 301.

[0093] The end of the sliding plate 313 away from the hollow tube 301 is inclined. The front and back of the moving ring 311 are fixedly connected to the inclined plate 312. The bottom of the inclined plate 312 is in contact with the side wall of the C-shaped frame 133. When the inclined surface of the inclined plate 312 is squeezed, it drives the moving ring 311 to slide. The sliding of the moving ring 311 will drive the sliding plate 313 to slide synchronously through the limiting rod.

[0094] In use, the front end of the steel bar to be pulled is first passed through the two hollow tubes 301, so that the steel bar is positioned between the traction sleeve 121 and the fixing ring 131. Then, the motor 101 is started. When the motor 101 is working, it will drive the bottom rotating disk 102 and the central shaft 111 to rotate. Since the multiple round holes on the inner wall of the fixing ring 131 are interlocked with the protrusions on the semicircular plate, when the motor 101 drives the bottom rotating disk 102 to rotate, the rotation of the rotating disk 102 will drive the fixing ring 131 to rotate through the spring telescopic rod 112 and the semicircular plate. When the bottom fixing ring 131 rotates, it will generate a pushing force to the left on the steel bar, causing the steel bar to slide between the fixing ring 131 and the traction sleeve 121. When the steel bar is transported by the pushing force generated by the rotation of the fixing ring 131, the transport of the steel bar will drive the traction sleeve 121 to rotate. In this way, the pushing force generated by the fixing ring 131 and the traction sleeve 121 on the steel bar completes the purpose of pulling the steel bar during production.

[0095] When the steel bar passes between the fixed ring 131 and the traction sleeve 121 and is conveyed under the relative pressure of the two, due to the iron scale impurities and local protrusions remaining on the surface of the steel bar after the heat treatment process, when the traction sleeve 121 encounters these impurities or local protrusions on the surface of the steel bar during its rotation, the traction sleeve 121 will slide upward and compress the internal spring telescopic rod 112. As the traction sleeve 121 slides upward, it will cause the arc-shaped plate 124 and the spring plate to slide. Simultaneously, when the traction sleeve 121 slides upward and compresses the spring telescopic rod 112, the spring telescopic rod 112 will generate a reaction force on the bottom of the traction sleeve 121. When the traction sleeve 121 drives the arc-shaped plate 124 and the spring plate to slide upward, the spring plate located at the bottom of the traction sleeve 121 will press against the fixed sleeve 1201 as the traction sleeve 121 slides upward. At this time, the spring plate will push the arc-shaped plate 124 under the reaction force of the fixed sleeve 1201, causing the arc-shaped plate 124 to rotate outward. During the outward rotation of the arc-shaped plates 124 located on both sides of the bottom center of the traction sleeve 121, the arc-shaped plates 124 will slide within the bending groove. At this time, the arc-shaped plates 124 located on both sides of the bottom center of the traction sleeve 121 can press against the surface of the steel bar. At this time, the bottom of the traction sleeve 121 and the steel bar can maintain constant pressure. Under these conditions, a large contact pressure is generated. Simultaneously, when the traction sleeve 121 slides upward, it pushes the side wall of the sliding plate 211. When the sliding plate 211 is pushed upward by the traction sleeve 121, its sliding motion generates a pulling force on the elastic shaft 123 through the limiting bracket 212. At this time, the elastic shaft 123, under the action of the pulling force, drives the sliding ring 132 and the C-shaped bracket 133 to slide upward. When the sliding ring 132 slides upward, it drives the fixed ring 131 to slide upward slightly through the short shaft. This results in surface contact between the traction sleeve 121 and the arc-shaped plate 124 and the steel bar, and the fixed ring 131... Slight upward sliding increases the contact force between steel bars and the overall clamping force during steel bar traction. It also increases the friction between the traction sleeve 121 and the fixing ring 131 on the steel bars, reducing slippage when the traction sleeve 121 and the fixing ring 131 encounter iron impurities and protrusions on the surface of the steel bars. This reduces slippage during steel bar traction, improves the stable transport of the steel bars during traction, and reduces the accumulation and bending of steel bars at the traction port during subsequent steel bar production due to slippage of the device. This improves the traction efficiency and stability during steel bar production.

[0096] When the elastic shaft 123 is subjected to tension, it causes the sliding ring 132 and the C-shaped frame 133 to slide upward. The sliding of the C-shaped frame 133 will compress the inclined surface of the side wall of the inclined plate 312. When the inclined surface of the inclined plate 312 is compressed, the inclined plate 312 will drive the moving ring 311 to slide. When the moving ring 311 slides, it will extend out of the hollow tube 301. Since there are moving rings 311 on both the left and right sides of the traction sleeve 121, when the moving rings 311 slide, the moving rings 311 on both sides of the traction sleeve 121 will slide relative to each other on the surface of the steel bar. When the moving rings 311 slide relative to each other on both sides of the steel bar, they will move closer to the traction sleeve 121. When the moving ring 311 moves closer to the traction sleeve 121, it can provide some support on the surface of the steel bar. By moving the moving ring 311 closer to the traction sleeve 121 and supporting the surface of the steel bar, the pushing force of the fixed ring 131 at the bottom of the steel bar during the rise can be reduced to concentrate on the bottom surface of the steel bar, which would cause the steel bar to undergo local bending deformation after being pushed by the fixed ring 131. By supporting the surface of the steel bar with the two moving rings 311, the local bending of the steel bar during the traction process can be reduced, while ensuring the stability and surface flatness of the steel bar during the traction process. This increases the contact area between the fixed ring 131 and the traction sleeve 121 and the steel bar and the traction stability of the steel bar, further improving the traction efficiency of the steel bar.

[0097] When the inclined surface of the inclined plate 312 is compressed, it causes the moving ring 311 to slide. The sliding of the moving ring 311 will cause the sliding plate 313 to slide synchronously through the limiting rod. During the process of the moving ring 311 driving the sliding plate 313 to slide, the short rod at the top of the sliding plate 313 will rotate obliquely along the guide of the inclined groove 302. At this time, when the moving ring 311 drives the two sliding plates 313 to slide on the surface of the steel bar, the two sliding plates 313 will slide relative to each other on the surface of the moving ring 311 under the guidance of the inclined groove 302. When the two sliding plates 313 rotate relative to each other as the moving ring 311 slides, the relative rotation of the two sliding plates 313 will remove the iron residue remaining on the surface of the steel bar. Impurities are pushed to both sides and pushed off the surface of the steel bar by the sliding plate 313. This reduces the likelihood of impurities on the steel bar surface accumulating on the surface after being crushed by the traction sleeve 121 and then sliding under the sliding ring 311. By reducing the accumulation of impurities under the pushing of the moving ring 311, it prevents the accumulated impurities from continuously scratching the surface of the steel bar when the traction sleeve 121 rotates. This reduces the likelihood of scratches becoming stress concentration points, affecting the stability and strength of the steel bar during subsequent production and drawing, and improves the production strength and surface flatness of the steel bar in subsequent production processes. It also improves the traction efficiency and strength during the steel bar production traction process.

[0098] When the traction sleeve 121 slides upward, it pushes the sliding plate 211 to slide. As the sliding plate 211 slides, the inclined surface of its sidewall separates from the rotating plate 213. Then, when the bottom of the traction sleeve 121 separates from the impurities or protrusions on the steel rod, the traction sleeve 121 resets under the elastic support of the four internal spring telescopic rods 112. When the traction sleeve 121 resets, it drives the sliding plate 211 to reset via the C-shaped frame. During reset, the sliding plate 211 compresses the auxiliary springs on both sides and pushes the end of the rotating plate 213 through its inclined surface. At this time, the rotating plate 213 rotates... The front end of plate 213 will rotate towards the traction sleeve 121. Through the pushing of the traction sleeve 121 by the rotating plates 213 on both sides of the traction sleeve 121, the rotating plates 213 can provide a certain degree of obstruction on the surface of the traction sleeve 121 and reduce the jumping of the traction sleeve 121 on the surface of the steel bar when it rotates with the steel bar during the conveying of the steel bar due to the excessively fast reset speed. This ensures that the traction sleeve 121 and the steel bar can maintain stable contact, while reducing the jumping and collision of the steel bar during the traction and conveying process, thereby improving the traction efficiency of the traction sleeve 121 on the steel bar and the stability of the direct contact between the traction sleeve 121 and the steel bar.

[0099] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A traction machine for PC steel bar production, comprising a main body (1), wherein a motor (101) is fixedly connected to the top of the main body (1), and a fixing plate is fixedly connected to the top of the main body (1), characterized in that, Also includes; Rotating mechanism (2), which is installed on the top of the main body (1) to reduce slippage during the traction of the steel bar; Auxiliary mechanism (3) is installed on the side wall of the rotating mechanism (2) to prevent impurities from remaining on the steel bar during the traction process. Among them, when the main body (1) pulls the steel bar, the rotating mechanism (2) can prevent the device from slipping during the pulling process, and can also prevent the steel bar from shaking when being pulled. The auxiliary mechanism (3) can prevent impurities from being left on the steel bar during the pulling process, thus preventing scratches on the surface of the steel bar. The main body (1) includes two rotating disks (102) rotatably connected to the fixed plate on the side away from the motor (101). The rotating disks (102) at the bottom are fixedly connected to the output end of the motor (101). The main body (1) also includes: An elastic component (11) is mounted on the side wall of the rotating disk (102); Contact component (12), said contact component (12) is mounted on the side wall of elastic component (11); A sliding component (13) is mounted on the bottom of the contact component (12); The rotating mechanism (2) includes fixed columns (201) disposed on the left and right outer walls of the rotating disk (102). The auxiliary mechanism (3) includes a hollow tube (301) disposed on the side wall of the fixed column (201), and the auxiliary mechanism (3) further includes: A pushing component (31) is installed inside the hollow tube (301); The elastic component (11) includes a central shaft (111) fixedly connected to the side wall of the rotating disk (102), four spring telescopic rods (112) fixedly connected to the outer surface of the central shaft (111), and a limit disk (113) rotatably connected to the outer surface of the central shaft (111). The four spring telescopic rods (112) at the bottom are fixedly connected to a semi-circular plate at one end away from the central axis (111). The side wall of the semi-circular plate is fixedly connected to several protrusions. The side of the limiting disk (113) near the motor (101) is fixedly connected to the side wall of the fixing plate. The first limiting disk (113) is bolted to the side away from the rotating disk (102) by the second limiting disk (114). The side wall of the bottom limiting disk 2 (114) is provided with a straight groove, and a disc is fixedly connected to the front of the limiting disk 2 (114). A fixing sleeve (1201) is fixedly connected to the side of the disc near the rotating disk (102). The contact assembly (12) includes a traction sleeve (121) rotatably connected to the outer surface of the four top spring telescopic rods (112). The outer surface of the traction sleeve (121) is provided with a plurality of semi-circular grooves, and the inner walls of the front and back sides of the semi-circular grooves are provided with curved grooves. An arc plate (124) is slidably connected between the two curved grooves. A spring plate is rotatably connected to the side wall of the arc plate (124). The end of the spring plate away from the arc plate (124) slides through to the inner wall of the traction sleeve (121). The elastic end of the spring plate is fixedly connected to the inner wall of the traction sleeve (121). The top outer wall of the traction sleeve (121) is provided with a rotating plate (122), and the left side of the rotating plate (122) is rotatably connected to the side wall of the limiting plate (113). The front of the rotating plate 1 (122) extends through to the outer wall of the limiting plate 2 (114) and extends to the outside. The top outer wall of the extended end of the rotating plate 1 (122) is fitted with an elastic shaft (123). The top of the elastic shaft (123) is rotatably connected to the side wall of the limiting plate 2 (114). The fixed sleeve (1201) is rotatably connected to the outer surface of the central shaft (111).

2. A traction machine for PC steel bar production according to claim 1, characterized in that: The rotating mechanism (2) further includes: A limiting component (21) is installed on the side wall of the fixed column (201).

3. A traction machine for PC steel bar production according to claim 1, characterized in that: The sliding assembly (13) includes a fixing ring (131) rotatably connected to the outer surface of the four semicircular plates at the bottom. The inner wall of the fixing ring (131) is provided with a plurality of circular holes, which are fitted into the protrusions on the outer surface of the semicircular plates. The fixed ring (131) is fixedly connected to a short shaft on the side away from the rotating disk (102). The outer surface of the short shaft located inside the straight groove is slidably connected to a sliding ring (132). The outer surface of the sliding ring (132) is fixedly connected to the bottom of the elastic shaft (123). The bottom of the sliding ring (132) is fixedly connected to a C-shaped frame (133).

4. A traction machine for PC steel bar production according to claim 2, characterized in that: The two fixing columns (201) are fixedly connected to the side wall of the fixing plate; The limiting component (21) includes a sliding plate (211) that slides through the side wall of the fixed column (201). The sliding plate (211) has a plurality of balls rotatably connected to the side of the traction sleeve (121) near the traction sleeve (121). The balls are in contact with the side wall of the traction sleeve (121). The front and back side walls of the sliding plate (211) are fixedly connected to auxiliary springs. The end of the auxiliary spring near the traction sleeve (121) is fixedly connected to the side wall of the fixed column (201).

5. A traction machine for PC steel bar production according to claim 4, characterized in that: A limiting frame (212) is fixedly connected to the side wall of the sliding plate (211) on the right side. The end of the limiting frame (212) away from the sliding plate (211) is slidably connected to the outer surface of the elastic shaft (123). The top of the fixed column (201) is rotatably connected to a rotating plate two (213), and the end of the sliding plate one (211) away from the traction sleeve (121) is inclined.

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