A threading machine with an adjustment mechanism

Abstract

This utility model relates to the field of prestressed construction technology and discloses a strand threading machine with an adjustment mechanism. It includes a horizontally moving frame with multiple supporting slide plates slidably mounted on it. Each supporting slide plate has an adjustable support frame, and a base is fixedly mounted on the support frame. Hydraulic through-type jacks are spaced apart along the length of the base. Each hydraulic through-type jack has a steel strand clamping mechanism at its telescopic end, and the steel strand clamping mechanism has a through hole communicating with the center of the hydraulic through-type jack. This utility model allows for flexible adjustment of the equipment status to match different operational needs, expanding the equipment's applicability, and also enables efficient, stable, and continuous conveying of steel strands, improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of prestressed construction technology, and in particular to a prestressing threading machine with an adjustment mechanism. Background Technology

[0002] In the construction of prestressed concrete structures, the threading of steel strands is a critical process, and its efficiency and quality directly affect the project progress and structural safety. Traditional steel strand threading equipment has the following problems: First, traditional threading equipment is inconvenient to adjust its position (height and horizontal position), making it difficult to adapt to different working conditions and requiring additional auxiliary equipment, increasing the complexity of construction. Second, existing equipment mostly uses single-point traction and lacks a relay-style collaborative operation mechanism, resulting in the inability to continuously transport steel strands during the threading process, reducing threading accuracy and efficiency.

[0003] Therefore, there is an urgent need for a wire threading machine with an adjustment mechanism that can flexibly adjust the state and achieve efficient, stable and continuous feeding of steel strands. Utility Model Content

[0004] The purpose of this invention is to provide a wire threading machine with an adjustment mechanism, which can flexibly adjust the equipment status to match different operational needs and expand the applicability of the equipment, and can also achieve efficient, stable and continuous conveying of steel strands, thereby improving work efficiency.

[0005] The present invention adopts the following technical solution:

[0006] A threading machine with an adjustment mechanism includes a horizontally moving frame, on which multiple support slides are slidably arranged. Each support slide has an adjustable support frame, and a base is fixedly mounted on the support frame. Hydraulic through-type jacks are spaced apart along the length of the base. Each hydraulic through-type jack has a steel strand clamping mechanism at its telescopic end, and the steel strand clamping mechanism has a through hole communicating with the center of the hydraulic through-type jack.

[0007] Preferably, the horizontal moving frame is a rectangular frame structure with two sets of supporting sliding plates symmetrically arranged on its top.

[0008] Preferably, the horizontal moving frame is provided with I-beams on both sides of the top, and the supporting slide is provided with pulleys that are in movable contact with the I-beams.

[0009] Preferably, each of the supporting slide plates is provided with two sets of pulleys at its bottom, and the two pulleys in each set are located at the upper and lower ends of the left and right sides of the upper flange of the I-beam.

[0010] Preferably, at least one of the supporting slide plates is provided with a positioning rod.

[0011] Preferably, the support frame is a hydraulic scissor lift platform.

[0012] Preferably, the support frame is fixedly connected to the support slide plate by bolts.

[0013] Preferably, the steel strand clamping mechanism includes a steel strand clamping sleeve, on which a clamping jack is provided, and a space for placing the steel strand is formed between the clamping jack and the steel strand clamping sleeve.

[0014] Preferably, the steel strand clamping sleeve is provided through at both ends, and a slot is provided at its upper part. The telescopic end of the clamping jack is provided with a clamping plate, which can be adjusted radially along the slot.

[0015] Preferably, the bottom of the steel strand clamping sleeve is provided with a sliding bracket, and rollers are movably provided at both ends of the sliding bracket, with the rollers sliding on the base.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the horizontal moving frame and the supporting slide plate on it enable the threading machine to move and adjust in the horizontal direction; the adjustable support frame allows for longitudinal adjustment of the threading machine to match different working heights, thus making it suitable for threading operations in different positions and enhancing the versatility and adaptability of the threading machine.

[0017] This invention utilizes the alternating operation of multiple hydraulic through-hole jacks and steel strand clamping mechanisms to achieve continuous relay conveying of steel strands, avoiding the intermittent pauses of traditional single-point stretching and significantly improving threading efficiency, making it particularly suitable for long-distance steel strand threading operations. Furthermore, the alternating operation of multiple spaced steel strand clamping mechanisms reduces the load on a single point, lowering the risk of mechanism wear; the coordinated action of alternating clamping and stretching balances the mechanism load, ensuring stability during long-term operation. In addition, the central through-hole structure of the hydraulic through-hole jacks allows the steel strands to pass directly through, avoiding frictional damage to the steel strands caused by traditional traction methods, while also reducing conveying resistance and extending the service life of the steel strands. Attached Figure Description

[0018] Figure 1 This is a front view of an embodiment of this application;

[0019] Figure 2 This is a side view of an embodiment of this application;

[0020] Figure 3 This is a top view of an embodiment of this application. Detailed Implementation

[0021] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0022] like Figures 1 to 3 As shown, the threading machine with an adjustment mechanism of this utility model includes a horizontal moving frame 1. The horizontal moving frame 1 is a rectangular frame structure. Multiple support slide plates 2 are slidably arranged on the horizontal moving frame 1 to drive the threading machine head to move in the horizontal direction, thereby meeting the threading operation at different positions. Preferably, two sets of support slide plates 2 are symmetrically arranged on the horizontal moving frame 1. The two support slide plates 2 in each set are respectively slidably located on two I-beams 3 at the top of the horizontal moving frame 1. Two sets of pulleys 4 are rotatably arranged at the bottom of each support slide plate 2. The two pulleys 4 in each set are respectively located at the upper and lower ends of the left and right sides (i.e., the two sides along the width direction) of the upper flange of the I-beam 3. The pulleys 4 are in active contact with the upper and lower end faces of the upper flange of the I-beam 3 to improve the stability of the support slide plate 2 moving along the horizontal support. In addition, cross braces 5 are provided at both ends of the I-beam 3, which can not only ensure the structural strength of the horizontal frame, but also limit the support plate 2 to prevent it from slipping off the I-beam 3. In this embodiment, the support plate 2 can be driven by manually applying external force, or it can be driven by setting a drive mechanism. For example, a threaded screw driven by a motor can be set on one side of the I-beam 3, and the slider on the threaded screw can be connected to the support plate 2 to realize the automated drive of the support plate 2. Alternatively, the support plate 2 can be driven by a chain, sprocket, or belt. For example, the sprocket or belt can be set at both ends of the I-beam 3, and the support plate 2 can be set on the chain or belt. The motor drives the sprocket or belt to rotate, which drives the support plate 2 to move along the I-beam 3. This kind of transmission method is common in the prior art, and the technology is relatively mature. Those skilled in the art can flexibly match and select according to their needs, and will not be described in detail here.

[0023] Furthermore, at least one support slide plate 2 is provided with a positioning rod 6, which is preferably threaded to the support slide plate 2. By rotating the positioning rod 6 to abut against the end face of the I-beam 3, the support slide plate 2 can be limited to ensure the stability of the threading machine head during operation.

[0024] A support frame 7 is bolted onto the support slide plate 2. The height of the support frame 7 is adjustable. The support frame 7 preferably adopts a hydraulic scissor lift platform. The scissor arm is opened / folded by hydraulic or electric drive to realize the vertical lifting of the threading machine. This allows the overall height of the equipment to be adjusted according to construction needs, making it suitable for threading operations at different heights and enhancing the versatility and adaptability of the equipment.

[0025] The support frame 7 is topped with a threading machine head, which includes a base 8 mounted on the support frame 7. The base 8 is a rectangular frame structure welded from angle steel and channel steel. Hydraulic through-type jacks 9 are spaced apart along the length of the base 8, preferably two in number. Each hydraulic through-type jack 9 has a steel strand clamping mechanism at its end for clamping and fixing the steel strand during operation. The steel strand clamping mechanism has a through hole 10 communicating with the center of the hydraulic through-type jack 9, facilitating the threading of the steel strand without the need for additional guiding devices, reducing frictional resistance and improving threading efficiency. This method is particularly suitable for long-distance threading, avoiding the steel strand wear or jamming problems caused by friction in traditional traction methods.

[0026] Furthermore, the steel strand clamping mechanism includes a steel strand clamping sleeve 11, on which a clamping jack 12 is provided. A space for placing the steel strand is formed between the clamping jack 12 and the steel strand clamping sleeve 11. The steel strand clamping sleeve 11 is provided with through holes at both ends to form a through hole 10 structure. The steel strand clamping sleeve 11 and the hydraulic through-hole jack 9 are arranged coaxially to facilitate the smooth threading of the steel strand in the threading machine. A slot 13 is provided on the upper part of the steel strand clamping sleeve 11. A clamping plate 14 is provided on the telescopic end of the clamping jack 12. The clamping plate 14 can be adjusted radially along the slot 13 so that the steel strand is clamped between the clamping plate 14 and the steel strand clamping sleeve 11 as the clamping plate 14 moves down, thus completing the positioning and fixing of the steel strand during threading.

[0027] Furthermore, a sliding bracket 15 is provided at the bottom of the steel strand clamping sleeve 11. The sliding bracket 15 is fixedly connected to the steel strand clamping sleeve 11 by bolts, which facilitates maintenance and replacement. Rollers 16 are movably provided at both ends of the sliding bracket 15. The rollers 16 slide on the base 8. The setting of the rollers 16 can effectively reduce the friction between the sliding bracket 15 and the base 8 during operation.

[0028] Furthermore, in this embodiment, a pull rope displacement sensor (not shown in the figure) can also be installed on the hydraulic through-type jack 9. The pull rope on the pull rope displacement sensor is connected to the clamping jack 12 on the steel strand clamping sleeve 11. The pull rope displacement sensor can measure the displacement change of the hydraulic through-type jack 9 in real time, ensuring that the position of the steel strand is accurate and controllable during the stretching process. It is suitable for multiple sets of hydraulic through-type jacks 9 to work together, preventing uneven force or deviation of the steel strand due to asynchrony.

[0029] In operation, this invention first adjusts the position of the threading machine head according to construction requirements. This adjustment is made horizontally via the support slide 2 and vertically via the support frame 7. After adjustment, the steel strand is clamped by the end-mounted steel strand clamping mechanism. Simultaneously, the end-mounted hydraulic jack 9 moves the steel strand. When the hydraulic jack 9 reaches a set distance, the clamping mechanism releases its grip, and the end-mounted hydraulic jack 9 resets. Then, the rear clamping mechanism clamps the steel strand, and the rear hydraulic jack 9 moves the steel strand further to the set distance. The clamping is then released, the rear hydraulic jack 9 resets, and the front hydraulic jack 9 resumes operation. Through the alternating operation of multiple hydraulic jacks 9 and the steel strand clamping mechanism, a continuous relay delivery of the steel strand is achieved, avoiding the intermittent pauses of traditional single-point stretching and significantly improving threading efficiency.

Claims

1. A threading machine with an adjustment mechanism, characterized in that: The device includes a horizontally movable frame, on which multiple support slides are slidably mounted. Each support slide has an adjustable support frame, and a base is fixedly mounted on the support frame. Hydraulic through-type jacks are spaced apart along the length of the base. Each hydraulic through-type jack has a steel strand clamping mechanism at its telescopic end, and the steel strand clamping mechanism has a through hole that communicates with the center of the hydraulic through-type jack.

2. The threading machine with an adjustment mechanism according to claim 1, characterized in that: The horizontal moving frame is a rectangular frame structure with two sets of supporting slide plates symmetrically arranged on its top.

3. The threading machine with an adjustment mechanism according to claim 2, characterized in that: The horizontally movable frame is provided with I-beams on both sides of the top, and the supporting slide is provided with pulleys that are in contact with the I-beams.

4. The threading machine with an adjustment mechanism according to claim 3, characterized in that: Each of the aforementioned support slide plates is equipped with two sets of pulleys at its bottom, with each set of two pulleys located at the upper and lower ends of the left and right sides of the upper flange of the I-beam.

5. The threading machine with an adjustment mechanism according to claim 1, characterized in that: At least one of the aforementioned support slide plates is provided with a positioning rod.

6. The threading machine with an adjustment mechanism according to claim 1, characterized in that: The support frame is a hydraulic scissor lift platform.

7. The threading machine with an adjustment mechanism according to claim 1, characterized in that: The support frame is fixedly connected to the support slide plate by bolts.

8. The threading machine with an adjustment mechanism according to claim 1, characterized in that: The steel strand clamping mechanism includes a steel strand clamping sleeve, on which a clamping jack is provided, and a space for placing the steel strand is formed between the clamping jack and the steel strand clamping sleeve.

9. The threading machine with an adjustment mechanism according to claim 8, characterized in that: The steel strand clamping sleeve is provided at both ends, and a slot is provided at the upper part. The telescopic end of the clamping jack is provided with a clamping plate, which can be adjusted radially along the slot.

10. The threading machine with an adjustment mechanism according to claim 9, characterized in that: The bottom of the steel strand clamping sleeve is provided with a sliding bracket, and rollers are movably provided at both ends of the sliding bracket, with the rollers sliding on the base.

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