Take-up device for prestressed steel strand

Abstract

The utility model discloses a take-up device for prestressed steel strands, and belongs to the technical field of take-up of steel strands. The take-up device for the prestressed steel strand comprises a placing mechanism and a width adjusting mechanism, the width adjusting mechanism comprises a mounting box, a round rod is connected to the center of the interior of the mounting box, four inclined plates are connected to the exterior of the round rod, and the ends, away from the round rod, of the four inclined plates are connected with the inner wall of the mounting box correspondingly; four cavities are formed by the opposite faces of a pair of adjacent inclined plates and the inner wall of the mounting box, adjusting seats are movably arranged in the four cavities, one ends of the adjusting seats penetrate through the mounting box and are in clearance fit with the through holes of the mounting box, and the ends of the adjusting seats are connected with arc-shaped seats; according to the adjustable steel strand take-up device, the take-up width of the steel strand can be effectively adjusted according to actual needs, and the adjustable steel strand take-up device has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strand take-up, in particular to a take-up device for prestressed steel strands. Background Art

[0002] With the development of my country's economy, the demand for high-performance materials is increasing. Steel strand is a steel product composed of multiple strands of twisted steel wire. The carbon steel surface can be coated with zinc, zinc-aluminum alloy, aluminum, copper, or epoxy resin, depending on the needs. Currently, specialized winding equipment is required during the production and processing of steel strand.

[0003] For example, a Chinese patent with publication number CN220351312U discloses a wire-taking device for prestressed steel strands, including a wire-taking platform, on which a winding assembly, a wire-pulling mechanism, and a wire-feeding platform are provided. The wire-feeding platform is provided with two sets of clamping rollers, and the wire-pulling mechanism is used to straighten the steel strands. The wire-pulling mechanism includes a first motor installed on the wire-taking platform, and a gear is installed at the output end of the first motor. The wire-taking device for prestressed steel strands passes the steel strands through the two sets of clamping rollers on the wire-feeding platform and passes around the two sets of wire-pulling rollers in an S-shape, and is wound up by the winding assembly. During the winding operation, the first motor can be driven to rotate the gears, pushing the two sets of racks to move relative to each other, thereby adjusting the spacing between the two sets of wire-pulling rollers, straightening the passed steel strands, preventing them from becoming loose during the winding operation, and improving their winding quality. The winding assembly can evenly wind up the steel strands through the arranged wire assembly, so that the device has a better winding effect on the steel strands.

[0004] The technical solution recorded in this proposal is to drive the gear to rotate through the first motor, push the two sets of racks to move relative to each other, adjust the spacing between the two sets of wire-pulling rollers, so that the passing steel strands are straightened and will not become loose during the winding operation. However, in actual use of this solution, the diameter of the winding roller cannot be adjusted, resulting in the inability to adjust the steel strand winding width according to actual needs. Winding rollers of different sizes need to be replaced, thereby reducing the practicality of the winding device. Utility Model Content

[0005] The purpose of the utility model is to provide a wire take-up device for prestressed steel strands to solve the problems raised in the above-mentioned background technology.

[0006] In view of the above problems, the technical solution proposed by the present invention is:

[0007] A wire-taking device for prestressed steel strands, comprising a placing mechanism and a width adjustment mechanism, the width adjustment mechanism comprising an installation box, a round rod connected to the inner center of the installation box, four inclined plates connected to the outside of the round rod, the ends of the four inclined plates away from the round rod are respectively connected to the inner wall of the installation box, an adjacent pair of inclined plates have opposite sides that form a cavity with the inner wall of the installation box, the number of the cavities is four, and an adjustment seat is movably provided inside the four cavities, one end of the adjustment seat passes through the installation box and is gap-matched with the through hole of the installation box, one end of the adjustment seat is connected to an arc seat, and the end of the adjustment seat away from the arc seat is connected to a pair of connecting seats, the outsides of the pair of connecting seats are hinged with connecting rods.

[0008] Furthermore, the outer wall of the round rod is provided with four sliding grooves, and the interior of the four sliding grooves is slidably connected to a pair of slides, and the pair of slides are respectively hinged to one end of a pair of connecting rods away from the connecting seat, and the inner walls of the four cavities are rotatably connected to a bidirectional screw rod near the sliding groove, and the two ends of the bidirectional screw rod respectively pass through a pair of slides and extend to the outside, and are respectively slidably connected to a pair of slides.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that by setting a bidirectional screw, when the bidirectional screw rotates, the slides connected to the external threads at both ends of the bidirectional screw move oppositely under the sliding action of the slide groove. When a pair of slides in a slide groove move oppositely toward the center respectively, since the slide is hinged to the connecting rod, and one end of the connecting rod is hinged to the connecting seat, and the connecting seat is connected to the adjustment seat, the adjustment seat expands outward from the inside of the cavity.

[0010] Furthermore, the outer wall of the installation box is connected to a drive box, one end of the four bidirectional screw rods passes through the installation box and extends to the interior of the drive box, and are all sleeved with synchronous wheels, and a synchronous belt is wound around a pair of synchronous wheels on the same side.

[0011] The beneficial effect of adopting the above further solution is that, through the coordinated use of the synchronous wheel and the synchronous belt, when two of the bidirectional screw rods rotate, the other two bidirectional screw rods can be rotated under the transmission action of the synchronous wheel and the synchronous belt.

[0012] Furthermore, two second motors are installed on the outer side wall of the installation box, and the two second motors are respectively connected to two of the bidirectional screw rods.

[0013] The beneficial effect of adopting the above further solution is that by providing two second motors, when the two second motors are started at the same time, it is easy to drive the two bidirectional screw rods to rotate.

[0014] Furthermore, the placement mechanism includes a base, both sides of the upper end of the base are connected to a placement seat, one side of the upper end of the placement seat is hinged to a limit seat, both sides of the bottom end of the limit seat are in contact with both sides of the upper end of the placement seat, and connecting rollers are provided between the placement seat and the limit seat, and the opposite sides of a pair of connecting rollers are respectively connected to the two sides of the outside of the installation box.

[0015] The beneficial effect of adopting the above further solution is that by setting up a base, it is easy to install the placement seat. Since a pair of connecting rollers are respectively connected to the two sides of the outside of the installation box, it is convenient to place the connecting rollers on the placement seat, so that the pair of placement seats support the installation box.

[0016] Furthermore, the bottom surface of the limiting seat and the top surface of the placement seat are both provided with a plurality of installation grooves, the interiors of the plurality of installation grooves are rotatably connected to the limiting wheels, and the outer side walls of the plurality of limiting wheels are pressed and fitted against the outer wall of the connecting roller.

[0017] The beneficial effect of adopting the above-mentioned further scheme is that by setting the installation groove, it is easy to install the limiting wheel. Since the limiting seat and the placing seat are hinged, when the connecting roller is placed on the placing seat, the limiting seat and the placing seat are in a closed state. At this time, the outer wall of the limiting wheel is pressed and fit against the outer wall of the connecting roller. When the connecting roller and the installation box rotate as a whole, the limiting wheel assists in the rotation, so that it will not affect the wire-winding work of the steel strand.

[0018] Furthermore, a first gear is sleeved on the outside of one end of one of the connecting rollers, and a mounting bracket is connected to the outer wall of one of the placement seats. A first motor is installed on the outer wall of the mounting bracket, and the output end of the first motor extends through the mounting bracket to the interior and is connected to a second gear for transmission, and the second gear is meshed with the first gear.

[0019] The beneficial effect of adopting the above further scheme is that by setting up the first motor, when the first motor is started, it is easy to drive the second gear to rotate. Since the second gear is engaged with the first gear, it is easy to rotate one of the connecting rollers, thereby causing the entire width adjustment mechanism to rotate, thereby realizing the winding of the steel strand.

[0020] Furthermore, a pair of U-shaped plates are installed on the front of the placement seat near the upper end, a U-shaped block is provided between the pair of U-shaped plates, the back of the U-shaped block is connected to the front of the limit seat, and the outer side walls of the U-shaped blocks are provided with sockets, and an insertion rod is provided inside the socket. The end of the insertion rod away from the inside of the socket passes through one of the U-shaped plates and extends to the outside, and is connected to a circular plate.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that, through the coordinated use of the insertion rod and the insertion hole, the U-shaped block can be easily limited inside a pair of U-shaped plates, so that the limit seat cannot be opened. When the circular plate is pulled outward, the insertion rod is separated from the insertion hole, which makes it easier to open the limit seat.

[0022] Furthermore, a spring is sleeved on the outside of one end of the insertion rod, and both ends of the spring are respectively connected to one side of the circular plate and the outer side wall of one of the U-shaped plates.

[0023] The beneficial effect of adopting the above further solution is that by setting a spring, when the circular plate is pulled outward, the insertion rod is separated from one of the U-shaped plates, and the spring is stretched at the same time. When the circular plate is no longer pulled outward, it is reset under the elastic force of the spring, so that the insertion rod is inserted into the inside of the hole.

[0024] The present invention has the advantages that: the wire-taking device for prestressed steel strands, when the opposite sides of the four arc-shaped seats are in contact with the outer wall of the installation box, the installation box and the four arc-shaped seats form a wire-taking roller as a whole, thereby facilitating the wire-taking of the steel strands, by arranging a round rod and installing four inclined plates on the outside of the round rod, and forming a cavity with the inner wall of the installation box, thereby facilitating the installation of a bidirectional screw rod inside the cavity, by arranging a bidirectional screw rod, when the bidirectional screw rod rotates, the sliding seats connected to the external threads of the two ends of the bidirectional screw rod move towards each other under the sliding action of the slide groove, and when the pair of slide seats in a slide groove move towards the center respectively, because the sliding seat is hinged to the connecting rod, and one end of the connecting rod is hinged to the connecting seat, and the connecting seat is connected to the adjusting seat, so that the adjusting seat expands outward from the inside of the cavity, so that the distance between the opposite sides of the four arc-shaped seats and the outer wall of the installation box becomes larger, thereby adjusting the wire-taking width of the steel strand according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a take-up device for prestressed steel strands provided by the utility model;

[0026] Figure 2 This is an exploded three-dimensional structural diagram of a placement mechanism of a take-up device for prestressed steel strands provided by the present invention;

[0027] Figure 3 This is an exploded three-dimensional structural diagram of a width adjustment mechanism of a take-up device for prestressed steel strands provided by the utility model;

[0028] Figure 4 The utility model provides a prestressed steel strand take-up device Figure 3 A magnified schematic diagram of the structure in the middle;

[0029] Figure 5A front cross-sectional schematic diagram of an installation box for a take-up device for prestressed steel strands provided by the present invention;

[0030] Figure 6 The utility model provides a schematic side sectional structure diagram of a drive box of a take-up device for prestressed steel strands.

[0031] In the figure: 100, placement mechanism; 1001, base; 1002, placement seat; 1003, limiting seat; 1004, limiting wheel; 1005, connecting roller; 1006, first gear; 1007, mounting frame; 1008, first motor; 1009, second gear; 1010, U-shaped plate; 1011, U-shaped block; 1012, socket; 1013, plug rod; 1014, spring; 200, width adjustment mechanism; 2001, mounting box; 2002, adjustment seat; 2003, arc seat; 2004, round rod; 2005, inclined plate; 2006, slide; 2007, bidirectional screw rod; 2008, slide; 2009, connecting rod; 2010, drive box; 2011, synchronous wheel; 2012, second motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1-6The utility model provides a technical solution: a wire take-up device for prestressed steel strand, comprising a placement mechanism 100 and a width adjustment mechanism 200, the width adjustment mechanism 200 comprising an installation box 2001, a round rod 2004 being connected to the center of the interior of the installation box 2001, four inclined plates 2005 being connected to the outside of the round rod 2004, one end of the four inclined plates 2005 being away from the round rod 2004 being respectively connected to the inner wall of the installation box 2001, and the opposite sides of an adjacent pair of inclined plates 2005 being connected to the installation box 2001 The inner wall forms a cavity, and there are four cavities. Adjustment seats 2002 are movably provided inside the four cavities. One end of the adjustment seat 2002 passes through the installation box 2001 and fits in the through hole of the installation box 2001. One end of the adjustment seat 2002 is connected to an arc seat 2003, and the end of the adjustment seat 2002 away from the arc seat 2003 is connected to a pair of connecting seats. The outside of the pair of connecting seats is hinged with a connecting rod 2009. When the opposite sides of the four arc seats 2003 are in contact with the outer wall of the installation box 2001, The installation box 2001 and the four arc-shaped seats 2003 form a take-up roller as a whole, so as to facilitate the take-up of the steel strand. By setting a round rod 2004 and installing four inclined plates 2005 on the outside of the round rod 2004, a pair of adjacent inclined plates 2005 form a cavity with the inner wall of the installation box 2001 on the opposite side, so as to facilitate the installation of a bidirectional screw rod 2007 inside the cavity. By setting the bidirectional screw rod 2007, when the bidirectional screw rod 2007 rotates, the slide seat 2008 connected to the external thread of the two ends of the bidirectional screw rod 2007 is rotated. They move in opposite directions under the sliding action of the slide 2006. When a pair of slides 2008 in a slide 2006 move in opposite directions toward the center, the slide 2008 is hinged to the connecting rod 2009, and one end of the connecting rod 2009 is hinged to the connecting seat, and the connecting seat is connected to the adjustment seat 2002, so that the adjustment seat 2002 expands outward from the inside of the cavity, so that the distance between the opposite sides of the four arc-shaped seats 2003 and the outer wall of the installation box 2001 becomes larger, thereby adjusting the wire rope take-up width according to actual needs.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-6The utility model provides a technical solution: the outer wall of the round rod 2004 is provided with four slide grooves 2006, and the interior of the four slide grooves 2006 is slidably connected to a pair of slide seats 2008, and the pair of slide seats 2008 are respectively hinged to one end of a pair of connecting rods 2009 away from the connecting seat, and the inner walls of the four cavities are rotatably connected to a bidirectional screw rod 2007 near the slide groove 2006, and the two ends of the bidirectional screw rod 2007 respectively pass through the pair of slide seats 2008 and extend to the outside, and are respectively slidably connected between the pair of slide seats 2008. Then, the outer wall of the installation box 2001 is connected to the drive box 2010, one end of the four bidirectional screw rods 2007 passes through the installation box 2001 and extends to the interior of the drive box 2010, and is sleeved with a synchronous wheel 2011. A synchronous belt is wound between a pair of synchronous wheels 2011 on the same side. Two second motors 2012 are installed on the outer wall of the installation box 2001. The two second motors 2012 are respectively connected to two of the bidirectional screw rods 2007 for transmission. The placement mechanism 100 includes a base 1001, a bottom The upper ends of the seat 1001 are connected to the placement seat 1002 on both sides, and the upper end of the placement seat 1002 is hinged to the limit seat 1003 on one side. The bottom ends of the limit seat 1003 are fitted with the upper ends of the placement seat 1002 on both sides, and connecting rollers 1005 are provided between the placement seat 1002 and the limit seat 1003. The opposite sides of a pair of connecting rollers 1005 are respectively connected to the outer sides of the installation box 2001. By setting two second motors 2012, when the two second motors 2012 are started at the same time, it is convenient to Drive the two bidirectional screw rods 2007 to rotate. When two of the bidirectional screw rods 2007 rotate, the other two bidirectional screw rods 2007 will rotate under the transmission action of the synchronous wheel 2011 and the synchronous belt. By setting the base 1001, it is convenient to install the placement seat 1002. Since a pair of connecting rollers 1005 are respectively connected to the two sides of the outside of the installation box 2001, it is convenient to place the connecting rollers 1005 on the placement seat 1002, so that the pair of placement seats 1002 support the installation box 2001.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1-6The present invention provides a technical solution: a plurality of mounting grooves are provided on the bottom surface of the limiting seat 1003 and the top surface of the placing seat 1002, and the interiors of the plurality of mounting grooves are rotatably connected to the limiting wheels 1004, and the outer side walls of the plurality of limiting wheels 1004 are pressed and fitted with the outer wall of the connecting roller 1005, and a first gear 1006 is sleeved on one end of one of the connecting rollers 1005, and a mounting bracket 1007 is connected to the outer side wall of one of the placing seats 1002, and a first motor 1008 is installed on the outer wall of the mounting bracket 1007, and the output end of the first motor 1008 passes through the mounting bracket 1007 and extends to the interior, and transmits the connecting gear. The second gear 1009 is connected, and the second gear 1009 and the first gear 1006 are meshed with each other. A pair of U-shaped plates 1010 are installed near the upper end of the front of the placement seat 1002. A U-shaped block 1011 is provided between the pair of U-shaped plates 1010. The back of the U-shaped block 1011 is connected to the front of the limit seat 1003, and the outer wall of the U-shaped block 1011 is provided with a socket 1012. The inside of the socket 1012 is provided with a rod 1013. The end of the rod 1013 away from the inside of the socket 1012 passes through one of the U-shaped plates 1010 and extends to the outside, and is connected to a round plate. One end of the rod 1013 is external. The sleeve is provided with a spring 1014, and the two ends of the spring 1014 are respectively connected to one side of the circular plate and the outer side wall of one of the U-shaped plates 1010. By setting the installation groove, it is convenient to install the limiting wheel 1004. Since the limiting seat 1003 is hinged with the placement seat 1002, when the connecting roller 1005 is placed on the placement seat 1002, the limiting seat 1003 and the placement seat 1002 are in a closed state. At this time, the outer wall of the limiting wheel 1004 is pressed and fitted with the outer wall of the connecting roller 1005. When the connecting roller 1005 and the installation box 2001 rotate as a whole, the limiting wheel 1004 assists in the rotation, so as not to In order to affect the winding work of the steel strand, a first motor 1008 is set. When the first motor 1008 is started, it is convenient to drive the second gear 1009 to rotate. Since the second gear 1009 is engaged with the first gear 1006, it is convenient to rotate one of the connecting rollers 1005, so that the entire width adjustment mechanism 200 is rotated to realize the winding work of the steel strand. When it is necessary to remove the entire width adjustment mechanism 200, the circular plate is pulled outward to separate the insertion rod 1013 from the insertion hole 1012, thereby facilitating the opening of the limit seat 1003, so that the limit seat 1003 and the placement seat 1002 are in an open state.

[0038] Specifically, the working principle of the take-up device for prestressed steel strands is as follows: when in use, when the steel strands need to be taken up wider, the two second motors 2012 are started at the same time, which facilitates driving the two bidirectional screw rods 2007 to rotate. When two of the bidirectional screw rods 2007 rotate, the other two bidirectional screw rods 2007 can be rotated under the transmission action of the synchronous wheel 2011 and the synchronous belt. When the opposite sides of the four arc-shaped seats 2003 are in contact with the outer wall of the installation box 2001, the installation box 2001 and the four arc-shaped seats 2003 form a take-up roller as a whole, thereby facilitating the take-up of the steel strands. To take up the wire, a round rod 2004 is provided, and four inclined plates 2005 are installed on the outside of the round rod 2004. The opposite sides of a pair of adjacent inclined plates 2005 form a cavity with the inner wall of the installation box 2001, so that a bidirectional screw rod 2007 can be installed inside the cavity. By providing the bidirectional screw rod 2007, when the bidirectional screw rod 2007 rotates, the slide 2008 connected to the external thread at both ends of the bidirectional screw rod 2007 moves in opposite directions under the sliding action of the slide groove 2006. When a pair of slides 2008 in a slide groove 2006 move toward the center respectively, due to the sliding The seat 2008 is hinged to the connecting rod 2009, and one end of the connecting rod 2009 is hinged to the connecting seat, and the connecting seat is connected to the adjustment seat 2002, so that the adjustment seat 2002 is expanded from the inside of the cavity to the outside, so that the distance between the opposite sides of the four arc-shaped seats 2003 and the outer wall of the installation box 2001 becomes larger, so as to adjust the wire rope take-up width according to actual needs. By setting the first motor 1008, when the first motor 1008 is started, it is easy to drive the second gear 1009 to rotate. Since the second gear 1009 is engaged with the first gear 1006, it is easy for one of them to rotate. The connecting roller 1005 rotates, thereby causing the entire width adjustment mechanism 200 to rotate, thereby realizing the winding of the steel strand. At the same time, the outer wall of the limiting wheel 1004 is pressed against the outer wall of the connecting roller 1005. When the connecting roller 1005 and the installation box 2001 rotate as a whole, the limiting wheel 1004 assists in the rotation, thereby not affecting the winding of the steel strand. When the winding is completed, the circular plate is pulled outward to separate the insertion rod 1013 from the insertion hole 1012, thereby facilitating the opening of the limiting seat 1003, so that the limiting seat 1003 and the placement seat 1002 are in an open state.

Claims

1. A take-up device for prestressed steel strand, characterized in that: The invention comprises a placement mechanism (100) and a width adjustment mechanism (200), wherein the width adjustment mechanism (200) comprises an installation box (2001), a round rod (2004) is connected to the center of the interior of the installation box (2001), and four inclined plates (2005) are connected to the outside of the round rod (2004), and the ends of the four inclined plates (2005) away from the round rod (2004) are respectively connected to the inner wall of the installation box (2001), and the opposite sides of an adjacent pair of the inclined plates (2005) are connected to the installation box (2001). 01) is formed with an inner wall thereof, and there are four cavities, and an adjustment seat (2002) is movably provided inside each of the four cavities, one end of the adjustment seat (2002) passes through the installation box (2001) and is gap-matched with the through hole of the installation box (2001), one end of the adjustment seat (2002) is connected to an arc seat (2003), and one end of the adjustment seat (2002) away from the arc seat (2003) is connected to a pair of connecting seats, and the outsides of the pair of connecting seats are hinged with connecting rods (2009).

2. A take-up device for prestressed steel strand according to claim 1, characterized in that: The outer wall of the round rod (2004) is provided with four sliding grooves (2006), and the interior of the four sliding grooves (2006) is slidably connected to a pair of slides (2008), and the pair of slides (2008) are respectively hinged to one end of a pair of connecting rods (2009) away from the connecting seat, and the inner walls of the four cavities are rotatably connected to a bidirectional screw rod (2007) near the sliding groove (2006), and the two ends of the bidirectional screw rod (2007) respectively pass through a pair of slides (2008) and extend to the outside, and are respectively slidably connected to a pair of slides (2008).

3. A take-up device for prestressed steel strand according to claim 2, characterized in that: The outer wall of the installation box (2001) is connected to the driving box (2010), one end of each of the four bidirectional screw rods (2007) passes through the installation box (2001) and extends to the interior of the driving box (2010), and each is provided with a synchronous wheel (2011), and a synchronous belt is wound between a pair of the synchronous wheels (2011) on the same side.

4. A take-up device for prestressed steel strand according to claim 3, characterized in that: Two second motors (2012) are installed on the outer side wall of the installation box (2001), and the two second motors (2012) are respectively connected to two of the bidirectional screw rods (2007) in a transmission manner.

5. The prestressed steel strand take-up device according to claim 1, characterized in that: The placement mechanism (100) comprises a base (1001), both sides of the upper end of the base (1001) are connected to a placement seat (1002), one side of the upper end of the placement seat (1002) is hinged to a limit seat (1003), both sides of the bottom end of the limit seat (1003) are in contact with both sides of the upper end of the placement seat (1002), and connecting rollers (1005) are provided between the placement seat (1002) and the limit seat (1003), and opposite sides of a pair of connecting rollers (1005) are respectively connected to both sides of the exterior of the installation box (2001).

6. A take-up device for prestressed steel strand according to claim 5, characterized in that: The bottom surface of the limiting seat (1003) and the top surface of the placement seat (1002) are both provided with a plurality of installation grooves, the interiors of the plurality of installation grooves are rotatably connected to the limiting wheels (1004), and the outer side walls of the plurality of limiting wheels (1004) are pressed and fitted against the outer wall of the connecting roller (1005).

7. A take-up device for prestressed steel strand according to claim 6, characterized in that: A first gear (1006) is sleeved on one end of one of the connecting rollers (1005), a mounting frame (1007) is connected to the outer wall of one of the placement seats (1002), a first motor (1008) is mounted on the outer wall of the mounting frame (1007), an output end of the first motor (1008) passes through the mounting frame (1007) and extends to the interior, and is transmission-connected to a second gear (1009), and the second gear (1009) and the first gear (1006) are meshed with each other.

8. A take-up device for prestressed steel strand according to claim 7, characterized in that: A pair of U-shaped plates (1010) are installed on the front side of the placement seat (1002) near the upper end, a U-shaped block (1011) is provided between the pair of U-shaped plates (1010), the back side of the U-shaped block (1011) is connected to the front side of the limiting seat (1003), and the outer side walls of the U-shaped blocks (1011) are each provided with a socket (1012), an insertion rod (1013) is provided inside the socket (1012), and an end of the insertion rod (1013) away from the inside of the socket (1012) passes through one of the U-shaped plates (1010) and extends to the outside, and is connected to a circular plate.

9. A take-up device for prestressed steel strand according to claim 8, characterized in that: A spring (1014) is sleeved on the outside of one end of the insertion rod (1013), and both ends of the spring (1014) are respectively connected to one side of the circular plate and the outer side wall of one of the U-shaped plates (1010).

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