Prestressed steel strand braiding and perforating device

Abstract

The utility model discloses a pre-stressed steel strand braiding and perforating device, and belongs to the technical field of steel strand construction. The prestressed steel strand braiding and perforating device comprises a height adjusting mechanism, the height adjusting mechanism comprises a top plate and a bottom plate, a pair of conveying mechanisms is arranged at the upper end of the top plate, each conveying mechanism comprises a mounting base, a moving base is slidably arranged in each mounting base, and a pair of rotating rods is rotatably connected to one face of each mounting base; limiting grooves are formed in one ends of the pair of rotating rods, limiting seats are movably inserted into the pair of limiting grooves, the ends, away from the rotating rods, of the pair of limiting seats are connected with one face of the moving seat through bearings, the pair of rotating rods is sleeved with a pair of rolling wheels, and four cavities are formed in the pair of rotating rods; pressing plates are slidably arranged in the four cavities, four pressing grooves are formed in the inner wall of the roller, the inner walls of the four pressing grooves are in clearance fit with the outer walls of the pressing plates, and the ends, away from the interiors of the cavities, of the pressing plates abut against the inner wall of the roller.

Description

Technical Field

[0001] The utility model relates to the technical field of steel strand construction, in particular to a prestressed steel strand bundle punching device. Background Art

[0002] Prestressed steel strand is a twisted steel cable consisting of 2, 3, 7 or 19 high-strength steel wires that has been stress-relieved (stabilized) and is suitable for prestressed concrete or similar purposes. In most post-tensioned and pre-tensioned prestressed projects, smooth steel strand is the most widely used prestressed steel material. Die-drawn steel strand is mainly used in lifting projects and is also used in projects such as nuclear power. Galvanized steel strand is often used in bridge ties, cables and external prestressed projects.

[0003] For example, the Chinese patent publication number CN214143326U discloses a prestressed steel strand bundle perforation device, comprising a base and a winding drum, wherein the upper surface of the base is fixedly connected to a winding drum base, the upper surface of the winding drum base is provided with a winding drum, the center of the winding drum is fixedly connected to a rotating shaft, the surface of the rotating shaft is rotatably connected to a fixed frame, one end of the rotating shaft is fixedly connected to a conveyor belt, the bottom of the conveyor belt is provided with a motor, and the side and the middle of the upper surface of the base away from the winding drum are fixedly connected to a support frame. The utility model is provided with a coordinated arrangement between the winding drum, the support frame, the connecting rod, the first wire wheel, the wire groove, the second wire wheel and the wire outlet hole, so that the wire is led out from the winding drum, and the wire is limited by the first wire wheel and the second wire wheel to prevent the wire from deviating from the original position. The wire is led out from the wire outlet hole after passing through the second wire wheel, thereby facilitating the moving perforation of the steel strand and facilitating construction operations;

[0004] The technical solution recorded in this proposal limits the conductor by means of a first conductor wheel and a second conductor wheel, and the conductor is led out from the conductor outlet hole after passing through the second conductor wheel, thereby facilitating the movement and perforation of the steel strand. However, in this proposal, only a single conductor wheel is installed on the connecting rod, so that only a single steel strand can be transported and perforated at a time, which is not convenient for transporting and perforating multiple prestressed steel strands at the same time according to actual needs, thereby reducing the efficiency of transporting and perforating the prestressed steel strands. Utility Model Content

[0005] The purpose of the utility model is to provide a prestressed steel strand bundle punching device to solve the problems raised in the above background technology.

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

[0007] The top end of the lifting wheel is fixed with a button bar, and the bottom end of the button bar is fixed with a button bar, and the bottom end of the button bar is fixed with a button bar, and the bottom end of the button bar is fixed with a button bar.

[0008] Furthermore, one end of the pressure plate located inside the cavity is connected to a plurality of springs, and one end of each of the springs is connected to the inner wall of the cavity.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that by setting a spring, when the pressure plate is squeezed into the interior of the cavity, the pressure plate squeezes the spring and shrinks to the interior of the cavity. When the squeezing force on the pressure plate disappears, it will reset under the elastic force of the spring and extend from the interior of the cavity again. At the same time, the longitudinal section of the pressure plate is an inverted "T" shape, thereby preventing the pressure plate from being separated from the interior of the cavity when it is squeezed and reset under the action of the spring.

[0010] Furthermore, the pair of limiting seats are both gear-shaped, and the outer walls of the pair of limiting seats are respectively clearance-matched with the inner walls of the pair of limiting grooves.

[0011] The beneficial effect of adopting the above-mentioned further scheme is that by setting the limit seat into a gear shape, and the outer wall of the limit seat is gap-matched with the inner wall of the limit groove, when the limit seat is inserted into the limit groove, the opposite sides of the mounting seat and the movable seat are respectively rotatably connected with one end of the rotating rod and one end of the limit seat, thereby not affecting the rotation of the rotating rod. When the movable seat extends outward from the inside of the mounting seat, the distance between the opposite sides of the mounting seat and the movable seat becomes larger. At this time, the limit seat is separated from the limit groove of the rotating rod, so that the roller can be put on at the end of the rotating rod through which the limit groove is opened.

[0012] Furthermore, an installation cavity is provided inside the installation seat, and the inner side wall of the installation cavity is connected to a screw through a bearing, one end of the screw extends through the movable seat to the interior and is threadedly connected to the movable seat, and sliding grooves are provided at the upper and bottom ends of the interior of the installation cavity, and the top and bottom surfaces of one end of the movable seat extend to the interior of the sliding groove and are slidably connected to the sliding groove, and the end of the screw away from the interior of the movable seat extends through the installation seat to the outside and is covered with a knob.

[0013] The beneficial effect of adopting the above-mentioned further scheme is that by setting a knob, when the knob is turned, the screw is easily rotated, so that the movable seat connected to the external thread of the screw moves forward or backward under the action of the sliding connection with the slide groove. When the movable seat moves forward, the distance between the mounting seat and the opposite side of the movable seat becomes larger.

[0014] Furthermore, the back of the mounting seat is connected to a mounting box, and the ends of a pair of rotating rods away from the limiting groove extend through the mounting box to the interior, and are respectively provided with a first gear and a second gear, and the first gear and the second gear are engaged with each other. A second motor is installed on the back of the mounting box, and the output end of the second motor is transmission-connected to one of the rotating rods.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that by setting up a second motor, when the second motor is started, it is easy to drive one of the rotating rods to rotate, so that the first gear sleeved on the outside of one end of one of the rotating rods rotates. Since the first gear and the second gear are engaged, the second gear is driven to rotate, so that a pair of rotating rods rotate forward and reverse, so that the prestressed steel strands can be transported under the action of the rollers on the pair of rotating rods.

[0016] Furthermore, a support is installed at the center of one side of the top surface of the top plate, and a wire outlet hole is opened at the inner center of the support.

[0017] The beneficial effect of adopting the above further solution is that by providing a support and opening a wire outlet hole at the center of the support, it is convenient for the prestressed steel strand to pass one end through the wire outlet hole under the action of the conveying mechanism.

[0018] Furthermore, a first slide groove is provided on both sides of the bottom end of the top plate, and a second slide groove is provided on both sides of the upper end of the bottom plate. The first slide groove and the second slide groove are both slidably connected with a first slider and a second slider. A first connecting rod is hinged between a pair of the first sliders, and a second connecting rod is hinged between a pair of the second sliders. The first connecting rod and the second connecting rod are cross-shaped, and support rods are hinged between the two pairs of the first connecting rods and the second connecting rods.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that when the first slider and the second slider in the first slide groove and the second slide groove move toward the center, the first connecting rod and the second connecting rod are in a cross shape, so that the distance between the two ends of the first connecting rod and the second connecting rod becomes smaller, thereby causing the top plate to rise, and then adjusting the penetration height of the prestressed steel strand according to the perforation requirements at different positions.

[0020] Furthermore, a pair of the second sliding grooves are both rotatably connected to a bidirectional screw rod, and both ends of the bidirectional screw rod respectively pass through the first slider and the second slider and extend to the outside, and are respectively threadedly connected to the first slider and the second slider.

[0021] The beneficial effect of adopting the above further solution is that by setting a bidirectional screw, when the bidirectional screw rotates, the first slider and the second slider connected by the external threads at both ends of the bidirectional screw can achieve opposite linear movement under the sliding connection with the second sliding groove.

[0022] Furthermore, a first motor is installed on the outer wall of the base plate, and the output end of the first motor is transmission-connected to one of the bidirectional screw rods. One end of a pair of bidirectional screw rods extends through the base plate to the outside and is both sleeved with a synchronous wheel, and a synchronous belt is wound between the pair of synchronous wheels.

[0023] The beneficial effect of adopting the above further solution is that by setting up the first motor, when the first motor is started, it is easy to drive one of the bidirectional screws to rotate, and the other bidirectional screw is rotated under the transmission action of the synchronous wheel and the synchronous belt.

[0024] Compared with the prior art, the beneficial effect of the present invention is that: the prestressed steel strand bundle perforation device, when the movable seat moves forward, the distance between the mounting seat and the opposite side of the movable seat becomes larger. At this time, the limit seat is separated from the limit slot of the rotating rod, and then the operator presses the pressure plate toward the inside of the cavity, so that the pressure plate squeezes the spring and contracts into the inside of the cavity, so that multiple rollers can be inserted into one end of the rotating rod with the limit slot opened according to actual needs, so as to simultaneously carry out the conveying and perforating work of multiple prestressed steel strands. When the extrusion force on the pressure plate disappears, it will be reset under the action of the elastic force of the spring and extend from the inside of the cavity again, and be placed in the inside of the pressure slot. At the same time, one end of the pressure plate is against the inner wall of the roller, and the roller is limited and fixed on the rotating rod to prevent the roller from displacement. Then the movable seat moves backward to reset it, so that the limit seat is inserted into the limit slot. Since the opposite side of the mounting seat and the movable seat are respectively rotatably connected to one end of the rotating rod and one end of the limit seat, the rotation of the rotating rod is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a prestressed steel strand bundle perforation device provided by the utility model;

[0026] Figure 2 A bottom view of a prestressed steel strand bundle perforation device provided by the present invention;

[0027] Figure 3 This is an exploded three-dimensional structural diagram of a height adjustment mechanism of a prestressed steel strand bundle perforation device provided by the utility model;

[0028] Figure 4 This is an exploded three-dimensional structural diagram of a conveying mechanism of a prestressed steel strand bundle perforation device provided by the present invention;

[0029] Figure 5 The utility model provides a schematic diagram of a partial side sectional structure of a conveying mechanism of a prestressed steel strand bundle punching device.

[0030] In the figure: 100, height adjustment mechanism; 1001, top plate; 1002, support; 1003, first slide; 1004, bottom plate; 1005, second slide; 1006, first slider; 1007, second slider; 1008, first connecting rod; 1009, second connecting rod; 1010, bidirectional screw; 1011, first motor; 1012, synchronous wheel; 200, conveying mechanism; 2001, mounting seat; 2002, moving seat; 2003, rotating rod; 2004, limiting seat; 2005, roller; 2006, spring; 2007, pressure plate; 2008, screw; 2009, knob; 2010, mounting box; 2011, first gear; 2012, second gear; 2013, second motor. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 5The utility model provides a technical solution: a prestressed steel strand bundle perforation device, including a height adjustment mechanism 100, the height adjustment mechanism 100 includes a top plate 1001 and a bottom plate 1004, the upper end of the top plate 1001 is provided with a pair of conveying mechanisms 200, the pair of conveying mechanisms 200 both include a mounting seat 2001, the interior of the mounting seat 2001 is provided with a movable seat 2002 for sliding, the movable seat 2002 and the mounting seat 2001 are both "L" shaped, one side of the mounting seat 2001 is rotatably connected to a pair of rotating rods 2003, one side of the mounting seat 2001 is provided with ... A limiting groove is provided at one end of each rotating rod 2003, and a limiting seat 2004 is movably inserted in the interior of a pair of limiting grooves. The ends of the pair of limiting seats 2004 away from the rotating rod 2003 are connected to one side of the movable seat 2002 through a bearing. A pair of rollers 2005 are sleeved on the outside of each pair of rotating rods 2003, and four cavities are provided inside each pair of rotating rods 2003. A pressure plate 2007 is slidably provided inside the four cavities. The inner wall of the roller 2005 is provided with four pressing grooves, and the inner walls of the four pressing grooves are all aligned with the outer wall of the pressure plate 2007. The wall gap is matched, and the end of the pressure plate 2007 away from the inside of the cavity is against the inner wall of the roller 2005. When the movable seat 2002 moves forward, the distance between the mounting seat 2001 and the opposite side of the movable seat 2002 becomes larger. At this time, the limit seat 2004 is separated from the limit groove of the rotating rod 2003, and then the operator presses the pressure plate 2007 into the inside of the cavity, so that the pressure plate 2007 squeezes the spring 2006 and shrinks it into the inside of the cavity, so that it is convenient to put more on the end of the rotating rod 2003 with the limit groove according to actual needs. A roller 2005 is provided to facilitate the conveying and perforating of multiple prestressed steel strands at the same time. When the extrusion force on the pressure plate 2007 disappears, it will reset under the elastic force of the spring 2006 and extend from the inside of the cavity again and be placed inside the pressure groove. At the same time, one end of the pressure plate 2007 is against the inner wall of the roller 2005, and the roller 2005 is limited and fixed on the rotating rod 2003 to prevent the roller 2005 from being displaced. Then the moving seat 2002 moves backward to reset it, so that the limit seat 2004 is inserted into the limit groove.

[0033] 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.

[0034] See also Figure 1-Figure 5The utility model provides a technical solution: one end of the pressure plate 2007 located inside the cavity is connected to a plurality of springs 2006, one end of each of the springs 2006 is connected to the inner wall of the cavity, a pair of limit seats 2004 are gear-shaped, and the outer walls of the pair of limit seats 2004 are respectively matched with the inner wall of a pair of limit grooves. An installation cavity is provided inside the installation seat 2001, and a screw 2008 is connected to the inner wall of the installation cavity through a bearing. One end of the screw 2008 extends through the movable seat 2002 to the interior and is threadedly connected to the movable seat 2002. The upper and lower ends of the interior of the installation cavity are provided with sliding grooves, and one end of the movable seat 2002 is provided with a screw. The top surface and the bottom surface both extend to the interior of the slide and are slidably connected to the slide. The end of the screw 2008 away from the interior of the movable seat 2002 passes through the mounting seat 2001 and extends to the outside, and is sleeved with a knob 2009. The back of the mounting seat 2001 is connected to the mounting box 2010. The ends of a pair of rotating rods 2003 away from the limiting groove both pass through the mounting box 2010 and extend to the interior, and are sleeved with a first gear 2011 and a second gear 2012, which are engaged with each other. A second motor 2013 is installed on the back of the mounting box 2010, and the output end of the second motor 2013 is connected to one of the rotating rods 2010. 03, the longitudinal section of the pressure plate 2007 is in an inverted "T" shape, thereby preventing the pressure plate 2007 from being separated from the inside of the cavity when it is squeezed and reset under the action of the spring 2006. By setting the limit seat 2004 to a gear shape, and the outer wall of the limit seat 2004 and the inner wall of the limit groove are clearance-matched, when the limit seat 2004 is inserted into the limit groove, the opposite sides of the mounting seat 2001 and the movable seat 2002 are respectively rotatably connected with one end of the rotating rod 2003 and one end of the limit seat 2004, thereby not affecting the rotation of the rotating rod 2003. When the knob 2009 is turned, it is easy to realize the rotation of the screw 2008, so that the movable seat 2004 002 moves forward or backward under the action of the sliding connection with the slide groove. When the movable seat 2002 moves forward, the distance between the opposite sides of the mounting seat 2001 and the movable seat 2002 becomes larger. When the second motor 2013 is started, it is easy to drive one of the rotating rods 2003 to rotate, so that the first gear 2011 on the outside of one end of one of the rotating rods 2003 rotates. Since the first gear 2011 and the second gear 2012 are engaged, the second gear 2012 is driven to rotate, so that a pair of rotating rods 2003 rotate forward and reverse, so that the prestressed steel strand can be transported under the action of the rollers 2005 on the pair of rotating rods 2003.

[0035] 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.

[0036] See also Figure 1-Figure 5 The present invention provides a technical solution: a support 1002 is installed at the center of one side of the top surface of the top plate 1001, a wire outlet hole is opened at the inner center of the support 1002, a first slide 1003 is opened on both sides of the bottom end of the top plate 1001, and a second slide 1005 is opened on both sides of the upper end of the bottom plate 1004. The first slide 1003 and the second slide 1005 are slidably connected to the inside of the first slide 1006 and the second slide 1007, and a first connecting rod 1008 is hinged between the pair of first slides 1006. A second connecting rod 1009 is hinged between a pair of second sliders 1007, and the first connecting rod 1008 and the second connecting rod 1009 are cross-shaped. A support rod is hinged between the two pairs of first connecting rods 1008 and the second connecting rod 1009. The interior of a pair of second slides 1005 is rotatably connected with a bidirectional screw rod 1010. The two ends of the bidirectional screw rod 1010 respectively pass through the first slider 1006 and the second slider 1007 and extend to the outside, and are respectively threadedly connected to the first slider 1006 and the second slider 1007. The bottom plate 10 04 is provided with a first motor 1011 on the outer wall, and the output end of the first motor 1011 is connected to one of the bidirectional screw rods 1010, and one end of a pair of bidirectional screw rods 1010 extends through the bottom plate 1004 to the outside, and is sleeved with a synchronous wheel 1012, and a synchronous belt is wound around the pair of synchronous wheels 1012. By setting a support 1002 and opening a wire outlet hole at the center of the support 1002, it is convenient for the prestressed steel strand to pass through the wire outlet hole under the action of the conveying mechanism 200. When the first When the motor 1011 is turned, it is easy to drive one of the bidirectional screw rods 1010 to rotate, and the other bidirectional screw rod 1010 is rotated under the transmission action of the synchronous wheel 1012 and the synchronous belt, so that the first slider 1006 and the second slider 1007 can move toward the center in opposite directions under the sliding action of the second slide groove 1005, so that the distance between the two ends of the first connecting rod 1008 and the second connecting rod 1009 becomes smaller, thereby causing the top plate 1001 to rise, and then the penetration height of the prestressed steel strand is adjusted according to the perforation requirements of different positions.

[0037] Specifically, the working principle of the prestressed steel strand bundle punching device is as follows: when in use, first turn the knob 2009 to facilitate the rotation of the screw 2008, so that the movable seat 2002 moves forward or backward under the sliding connection with the slide groove. When the movable seat 2002 moves forward, the distance between the mounting seat 2001 and the opposite side of the movable seat 2002 becomes larger. At this time, the limit seat 2004 is separated from the limit groove of the rotating rod 2003, and then the operator presses the pressure plate 2000 into the interior of the cavity. 7, so that the pressing plate 2007 squeezes the spring 2006 and shrinks to the inside of the cavity, so that according to actual needs, multiple rollers 2005 can be put on one end of the limited groove opened on the rotating rod 2003 to facilitate the transportation and perforation of multiple prestressed steel strands at the same time. When the squeezing force on the pressing plate 2007 disappears, it will be reset under the elastic force of the spring 2006 and extend from the inside of the cavity again and be placed in the inside of the pressing groove. At the same time, one end of the pressing plate 2007 is in contact with the inner wall of the roller 2005. The roller 2005 is fixed on the rotating rod 2003 to prevent the roller 2005 from being displaced, and then the movable seat 2002 moves backward to reset it, so that the limiting seat 2004 is inserted into the limiting groove. Since the opposite sides of the mounting seat 2001 and the movable seat 2002 are respectively rotatably connected with one end of the rotating rod 2003 and one end of the limiting seat 2004, the rotation of the rotating rod 2003 is not affected. When the second motor 2013 is started, it is convenient to drive one of the rotating rods 2003 to rotate. The first gear 2011 provided on the outer side of one end of one of the rotating rods 2003 rotates, and the first gear 2011 is engaged with the second gear 2012, thereby driving the second gear 2012 to rotate, so that the pair of rotating rods 2003 rotate forward and reverse, so that the prestressed steel strand can be transported under the action of the rollers 2005 on the pair of rotating rods 2003, thereby facilitating the prestressed steel strand to pass through the outlet hole at one end under the action of the conveying mechanism 200, and enter the reserved hole through the outlet hole.

Claims

1. A prestressed steel strand bundle punching device, characterized in that: The height adjustment mechanism (100) comprises a top plate (1001) and a bottom plate (1004); a pair of conveying mechanisms (200) are provided at the upper end of the top plate (1001); the pair of conveying mechanisms (200) each comprises a mounting seat (2001); a movable seat (2002) is provided inside the mounting seat (2001); the movable seat (2002) and the mounting seat (2001) are both in an "L" shape; one side of the mounting seat (2001) is rotatably connected to a pair of rotating rods (2003); one end of the pair of rotating rods (2003) is provided with a limiting groove; the inside of the pair of limiting grooves is A limit seat (2004) is provided for the movable insertion, and one end of a pair of the limit seats (2004) away from the rotating rod (2003) is connected to one side of the movable seat (2002) through a bearing, and the outer side of the pair of rotating rods (2003) is provided with a pair of rollers (2005), and the interior of the pair of rotating rods (2003) is provided with four cavities, and the interiors of the four cavities are provided with a pressure plate (2007) slidingly, and the inner wall of the roller (2005) is provided with four pressing grooves, and the inner walls of the four pressing grooves are all in clearance fit with the outer wall of the pressing plate (2007), and the end of the pressing plate (2007) away from the interior of the cavity is against the inner wall of the roller (2005).

2. A prestressed steel strand bundle punching device according to claim 1, characterized in that: One end of the pressure plate (2007) located inside the cavity is connected to a plurality of springs (2006), and one end of each of the springs (2006) is connected to the inner wall of the cavity.

3. A prestressed steel strand bundle punching device according to claim 2, characterized in that: The pair of limiting seats (2004) are both gear-shaped, and the outer walls of the pair of limiting seats (2004) are respectively clearance-matched with the inner walls of the pair of limiting grooves.

4. A prestressed steel strand bundle punching device according to claim 3, characterized in that: The mounting seat (2001) is provided with a mounting cavity inside, and the inner side wall of the mounting cavity is connected to a screw (2008) through a bearing, one end of the screw (2008) passes through the movable seat (2002) and extends to the inside, and is threadedly connected to the movable seat (2002), and the upper end and the bottom end of the interior of the mounting cavity are provided with a slide groove, and the top surface and the bottom surface of one end of the movable seat (2002) extend to the inside of the slide groove and are slidably connected to the slide groove, and the end of the screw (2008) away from the inside of the movable seat (2002) passes through the mounting seat (2001) and extends to the outside, and is provided with a knob (2009).

5. A prestressed steel strand bundle punching device according to claim 4, characterized in that: The back of the mounting seat (2001) is connected to a mounting box (2010); one end of a pair of rotating rods (2003) away from the limiting groove extends through the mounting box (2010) to the inside and is respectively provided with a first gear (2011) and a second gear (2012); the first gear (2011) and the second gear (2012) are meshed with each other; a second motor (2013) is installed on the back of the mounting box (2010); an output end of the second motor (2013) is transmission-connected to one of the rotating rods (2003).

6. A prestressed steel strand bundle punching device according to claim 1, characterized in that: A support (1002) is installed at the center of one side of the top surface of the top plate (1001), and a wire outlet hole is opened at the inner center of the support (1002).

7. A prestressed steel strand bundle punching device according to claim 6, characterized in that: A first slide groove (1003) is provided on both sides of the bottom end of the top plate (1001), and a second slide groove (1005) is provided on both sides of the upper end of the bottom plate (1004). The first slide groove (1003) and the second slide groove (1005) are both slidably connected with a first slider (1006) and a second slider (1007). A first connecting rod (1008) is hinged between a pair of the first sliders (1006), and a second connecting rod (1009) is hinged between a pair of the second sliders (1007). The first connecting rod (1008) and the second connecting rod (1009) are cross-shaped, and a support rod is hinged between the two pairs of the first connecting rods (1008) and the second connecting rods (1009).

8. A prestressed steel strand bundle punching device according to claim 7, characterized in that: A pair of second slide grooves (1005) are both rotatably connected to the inside with a bidirectional screw rod (1010), and the two ends of the bidirectional screw rod (1010) respectively pass through the first slider (1006) and the second slider (1007) and extend to the outside, and are respectively threadedly connected to the first slider (1006) and the second slider (1007).

9. A prestressed steel strand bundle punching device according to claim 8, characterized in that: A first motor (1011) is installed on the outer wall of the base plate (1004), and an output end of the first motor (1011) is transmission-connected to one of the bidirectional screw rods (1010). One end of a pair of bidirectional screw rods (1010) passes through the base plate (1004) and extends to the outside, and is sleeved with a synchronous wheel (1012). A synchronous belt is wound between the pair of synchronous wheels (1012).

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