Steel strand bunching and penetrating device and method

Abstract

The invention relates to the technical field of equipment for gathering, bundling and pulling a plurality of steel strands and a pulling method, in particular to a steel strand bundling and pulling device and method, and the device comprises a bundling device, a relay conveying device, a pulling jack, a clamping jack and a control system, the control system is connected with the relay conveying device, the strand pulling jack and the clamping jack and used for controlling the relay conveying device, the strand pulling jack and the clamping jack to complete preset actions. The method comprises the steps that the relay conveying device is controlled to convey a plurality of single-layer side-by-side steel strands into the bunching device, the single-layer side-by-side steel strands sequentially pass through the wire converging conical pipe and the wire converging conical pipe and then are converged and output into a whole bunch of steel strands, and the whole bunch of steel strands are sequentially fed into the bunching channel and the supporting channel; and the cooperative action of the clamping assembly, the first piston and the hydraulic chuck is controlled, so that the functions of conveying a plurality of steel strands side by side, converging the steel strands into a bundle and circularly pulling the whole bundle of steel strands can be realized, and the working efficiency of bundling and pulling is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment and a method for bundling and threading a plurality of steel strands, and in particular to a device and a method for bundling and threading a plurality of steel strands. Background Art

[0002] In the construction of bridges and railway foundations, multiple steel strands need to be threaded into the prepared corrugated pipe channels when installing prefabricated concrete box girders. The traditional construction method is to thread single steel strands in the corrugated pipe channels one by one. However, the steel strands are prone to twisting after multiple threadings, which affects the tensioning effect. Safety accidents may occur when the twisting is serious. Therefore, it is changed to first combing the multiple steel strands into bundles, and then fix the ends of the multiple steel strands combed into a whole bundle through the guide wires pre-threaded in the corrugated pipe channels, and then use mechanical equipment to pull and thread the wires. The operation is complicated and requires multiple people to work at both ends of the prefabricated concrete box girder at the same time, resulting in low threading efficiency.

[0003] The patent document with application number 202410788911.9 discloses an anchor hole threading and tensioning system with self-positioning anchor holes, including a mobile frame that performs spatial movement, on which a jack for providing tensioning force to the steel strand is horizontally fixed, and on which a cutting frame is equipped with a sliding arrangement along the output direction of the jack, and on which two conveying mechanisms for jointly conveying the steel strands are vertically and symmetrically installed on the cutting frame, and on which a clamping mechanism for synchronously clamping multiple steel strands is fixedly installed; the system provided by the present invention avoids the trouble of repeatedly disassembling and assembling anchors and clips during the existing construction process of tensioning the steel strands, and is easy to operate, saves time and effort, and has higher overall efficiency.

[0004] The clamping mechanism in the above-mentioned comparative document includes a chuck, dispersion holes and a trumpet-shaped guide block, which can only gather multiple steel strands distributed in a circular array in the dispersion holes into a polygonal bundle of steel strands without a center steel strand after passing through the trumpet-shaped guide block, and is not suitable for the common scenario of multiple steel strands arranged side by side being gathered into a bundle; the jack structure is used to clamp and push the multiple steel strands inside it, and mainly plays the role of simultaneously conveying multiple steel strands distributed individually in a circular array, and is unable to perform bundle threading operations on the whole bundle of steel strands after the multiple steel strands are gathered, and is unable to accurately control the exposed length of the whole bundle of steel strands after passing through the corrugated pipe channel. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a steel strand bundling and threading device and method, which can realize the functions of side-by-side transportation and bundling of multiple steel strands and circular threading of the entire bundle of steel strands, thereby improving the work efficiency of bundling and threading.

[0006] In order to solve the above technical problems, the present invention provides a steel strand bundle-forming and bundle-threading device, comprising:

[0007] A bundling device, comprising a frame; a conical conduit disposed on the frame, the conical conduit being provided with a first inlet and a first outlet, the size of the first inlet being larger than the size of the first outlet; a conical conduit disposed in front of the conical conduit, the conical conduit being provided with a second inlet, a second outlet and a conical tube body connecting the second inlet and the second outlet, the first inlet corresponding to the second outlet, the size of the second outlet being larger than the size of the first outlet and smaller than the size of the first inlet, wherein a plurality of steel strands arranged side by side in a single layer are converged and output as a plurality of steel strands distributed in multiple layers through the conical tube body, and the plurality of steel strands distributed in multiple layers are converged and output as a whole bundle of steel strands through the conical conduit;

[0008] A relay conveying device, comprising an input end, a conveying mechanism and an output end, wherein the input end is used to receive a plurality of steel strands arranged side by side in a single layer, the output end is adapted to the second inlet, and the conveying mechanism is used to push the plurality of steel strands arranged side by side in a single layer into the second inlet;

[0009] A beam-penetrating jack, comprising a first cylinder, a first piston disposed in the first cylinder, and a beam-penetrating channel penetrating both ends of the first cylinder, wherein the first outlet is adapted to an inlet of the beam-penetrating channel;

[0010] A clamping jack, comprising a second cylinder, a second piston disposed in the second cylinder, a support channel penetrating both ends of the second cylinder, and a clamping assembly, wherein the support channel is communicated with the beam-through channel, the first piston is fixedly connected to the first end of the second cylinder, and the clamping assembly is connected to the second end of the second cylinder, and when the second piston moves toward the second end, the clamping assembly can be driven to perform a clamping action, and when the second piston moves toward the first end, the clamping assembly performs a loosening action and returns to an initial state; and

[0011] A control system is respectively connected to the relay conveying device, the beam threading jack and the clamping jack.

[0012] Preferably, in the above scheme, the converging cone tube and the converging cone-shaped tube are arranged on the frame with a common center axis, the second inlet is an elliptical inlet, the second outlet is a circular outlet, and the circular outlet and the elliptical inlet are arranged with a common center axis.

[0013] Preferably, in the above scheme, the bundling device also includes a triangular roller group, and the triangular roller group is arranged at the first outlet, and is used to guide the entire bundle of steel strands to pass through the center of the triangular roller group.

[0014] Preferably, in the above scheme, the conveying mechanism includes a motor, a conveying wheel group and a clamping assembly, a plurality of steel strands are placed side by side on the horizontally arranged conveying wheel group, the clamping assembly is used to squeeze the plurality of steel strands downward from above the conveying wheel group, and the motor is used to drive the pulley of the conveying wheel group to rotate and drive the plurality of steel strands to move horizontally.

[0015] Preferably, the above scheme also includes an end fixing assembly, which includes a supporting platform, a clamp and a guide head. The supporting platform is arranged on the outside of the first outlet, and the clamp is installed above the supporting platform to clamp and fix the guide head. The guide head is used to fix the end of the entire bundle of steel strands.

[0016] Preferably, in the above scheme, the clamping assembly includes a support sleeve and a clip, the support sleeve is installed on the outer side of the second end, the outlet of the support sleeve is connected to the support channel, the clip is radially movably arranged on the inner periphery of the outlet of the support sleeve, the clip is slidably connected to the second piston, and the second piston is used to drive the clip to perform a clamping action.

[0017] Preferably, in the above scheme, the clamping assembly also includes a spring, a three-finger claw and a slider, and two adjacent clamps are elastically connected by the spring, the three-finger claw is arranged in a circular array on the outer periphery of the outlet of the support sleeve, and is fixedly connected to the slider, the slider is fixedly connected to the clamp, and the slider is slidably connected to the support sleeve, when the second piston drives the clamp to perform a clamping action, the spring is in a compressed state, and when the clamping assembly returns to its initial state, the spring is in a relaxed state.

[0018] Preferably, the above solution further comprises a mobile lifting platform, and the beam-threading jack is installed on the mobile lifting platform.

[0019] Preferably, in the above scheme, the control system includes a distance measuring module, a pressure measuring module and a positioning module. The distance measuring module is used to detect the end position of the whole bundle of steel strands and to collect the cumulative advancement distance of the bundle threading jack. The pressure measuring module is used to respectively detect the pressure of the clamping assembly and the limit assembly clamping the whole bundle of steel strands. The positioning module and the mobile lifting platform cooperate to achieve the alignment and positioning of the bundle threading channel and the channel of the corrugated pipe to be threaded.

[0020] A steel strand bundling and threading method is applied to the above-mentioned steel strand bundling and threading device, and the steel strand bundling and threading method comprises:

[0021] Step S1, the relay conveying device compresses a plurality of steel strands arranged side by side in a single layer and conveys them into the bundling device;

[0022] Step S2, the bundling device outputs a whole bundle of steel strands with fixed ends;

[0023] Step S3, the entire bundle of steel strands passes through the bundle passage and the support passage in sequence;

[0024] Step S4, the clamping jack and the limiting assembly respectively clamp and fix the entire bundle of steel strands;

[0025] Step S5, the mobile lifting platform moves to the entrance position of the channel of the corrugated pipe to be threaded with the beam, and cooperates with the positioning module to achieve alignment and positioning of the beam threading channel and the channel of the corrugated pipe to be threaded with the beam;

[0026] Step S6, the bundle threading jack and the clamping jack cooperate to push the entire bundle of steel strands into the channel of the corrugated pipe to be threaded;

[0027] Step S7, when the cumulative pushing distance of the whole bundle of steel strands reaches the preset length, the bundle threading task is completed, the clamping assembly releases the whole bundle of steel strands, the first piston returns to the initial position, and the mobile lifting platform returns to the initial position.

[0028] Compared with the existing technology, the present invention has the following beneficial effects:

[0029] 1. A steel strand bundle forming and threading device in the present invention comprises a bundle forming device, a relay conveying device, a bundle threading jack, a clamping jack and a control system, wherein the control system is respectively connected to the relay conveying device, the bundle threading jack and the clamping jack, the relay conveying device is used to convey a plurality of steel strands arranged side by side in a single layer into the bundle forming device, the plurality of steel strands arranged side by side in a single layer are successively passed through the converging cone tube and the converging cone tube of the bundle forming device and are converged and output as a whole bundle of steel strands, the whole bundle of steel strands is successively sent into the bundle threading channel and the supporting channel, the clamping jack drives the clamping assembly to clamp and fix the whole bundle of steel strands in the supporting channel, the bundle threading jack performs cyclic pushing on the clamping jack, thereby realizing the functions of side by side conveying of a plurality of steel strands, converging into a bundle and cyclic threading of the whole bundle of steel strands, thereby improving the working efficiency of bundle forming and threading.

[0030] 2. The bundling device in the present invention is provided with a converging cone tube and a converging cone tube with a common central axis. The second inlet is an elliptical inlet, and the second outlet is a circular outlet. The circular outlet and the elliptical inlet are provided with a common central axis. The inner wall of the conical tube body is smooth, and it can efficiently guide multiple steel strands in a single-layer side-by-side state into a multi-layer distribution state. The converging cone tube can converge multiple steel strands distributed in multiple layers into a whole bundle of steel strands.

[0031] 3. The conveying mechanism in the present invention includes a motor, a conveying wheel group and a clamping assembly. Multiple steel strands are placed side by side on a horizontally arranged conveying wheel group. The clamping assembly is used to squeeze the multiple steel strands downward from the top of the conveying wheel group. The motor is used to drive the pulley of the conveying wheel group to rotate and drive the multiple steel strands to move horizontally, which can increase the conveying power of the steel strands and prevent the steel strands from shifting during the side-by-side conveying process.

[0032] 4. The end fixing assembly in the present invention includes a supporting platform, a clamp and a guide head. The supporting platform is arranged on the outside of the first outlet, and the clamp is installed above the supporting platform. The clamp is used to clamp and fix the guide head. When the whole bundle of steel strands passes into the guide head, the guide head can fix the end of the whole bundle of steel strands. The clamp releases the guide head that has fixed the end of the whole bundle of steel strands, and the whole bundle of steel strands and the guide head can continue to be transported forward to obtain the whole bundle of steel strands of the required length.

[0033] 5. The two adjacent clips in the present invention are elastically connected by a spring. When the second piston drives the clip to perform a clamping action, the spring is in a compressed state. When the clamping assembly returns to its initial state, the spring is in a relaxed state. The relaxed spring can stretch the clips apart and move them away from each other, thereby realizing the function of automatic resetting of the clamping assembly. When the spring is compressed, the clip drives the slider and the three-finger claw to move and close along the radial direction of the outlet of the support sleeve, thereby clamping and fixing the entire bundle of steel strands inside the support channel. When the clip is opened, the three-finger claw can reduce the gap between the three-petal clip, thereby playing the role of gathering multiple steel strands and avoiding loose clamping and uneven force on the entire bundle of steel strands.

[0034] 6. A method for bundling and threading steel strands in the present invention comprises controlling a relay conveying device to convey a plurality of steel strands side by side into a bundling device, so as to obtain a whole bundle of steel strands. By sequentially conveying the whole bundle of steel strands into a threading channel and a supporting channel, and controlling the coordinated action of a clamping assembly, a first piston and a hydraulic chuck, the clamping, pushing and releasing return operations of the whole bundle of steel strands can be realized, thereby efficiently completing the cyclic threading operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of a steel strand bundling and threading device from a first perspective of the present invention.

[0036] Figure 2 This is a schematic diagram of the overall structure from a second perspective of a steel strand bundling and threading device of the present invention.

[0037] Figure 3 It is a schematic diagram of the structure of the relay conveying device and the beam forming device from the first perspective of the present invention.

[0038] Figure 4 It is a schematic structural diagram of the relay conveying device and the beam forming device from a second perspective of the present invention.

[0039] Figure 5 It is a schematic structural diagram of the converging tapered tube of the present invention.

[0040] Figure 6 It is a schematic diagram of the internal structure of the guide head of the present invention.

[0041] Figure 7 It is a schematic diagram of the external structure of the beam jack and the clamping jack of the present invention.

[0042] Figure 8 It is a schematic diagram of the internal structure of the beam-threading jack and the clamping jack of the present invention.

[0043] Fig. 9 It is a schematic diagram of the internal structure of the clamping jack of the present invention in the released state.

[0044] Fig.10 It is a schematic diagram of the internal structure of the clamping jack of the present invention in the clamping state.

[0045] Fig.11 It is a schematic diagram of the separation surface structure of the three-petal structure clip of the present invention.

[0046] Fig.12 The present invention is a schematic diagram of the process of a method for bundling and threading steel strands.

[0047] Among them, A1-relay conveying device, A11-motor, A12-conveying wheel group, A13-pressing assembly, A131-lower pressing wheel group, A132-pressing cylinder, A14-base, A141-inlet trough;

[0048] A2-bundling device, A21-conical converging tube, A22-conical converging tube, A221-round tube, A222-elliptical tube, A23-fixed bracket, A24-movable bracket, A25-support rod, A26-connecting piece, A27-slide platform, A28-triangular roller set;

[0049] A3-end fixing assembly, A31-support platform, A32-clamping claw, A33-guide head, A331-circular sleeve, A332-wedge-shaped clip, A333-conical sleeve;

[0050] B1-beam jack, B11-beam channel, B12-first cylinder, B13-first piston;

[0051] B2-clamping jack, B21-support channel, B22-clamping assembly, B221-support sleeve, B222-clamping piece, B223-spring, B224-three-finger claw, B225-slider, B23-second cylinder, B24-second piston;

[0052] B3-limiting assembly, B31-hydraulic chuck, B32-wire feed frame, B33-rotating roller;

[0053] C1-Mobile lifting platform. DETAILED DESCRIPTION

[0054] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0056] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0058] like Figure 1 , Figure 2As shown, the present invention discloses a steel strand bundling and threading device, comprising a bundling device A2, a relay conveying device A1, a bundle threading jack B1, a clamping jack B2 and a control system, wherein the control system is respectively connected to the relay conveying device A1, the bundle threading jack B1 and the clamping jack B2, and is used to respectively control the working states of the relay conveying device A1, the bundle threading jack B1 and the clamping jack B2.

[0059] Continue to refer Figure 3 , Figure 4 The bundling device A2 includes a frame, a conical conical conduit A21 and a conical conical conduit A22; the conical conduit A21 is arranged on the frame, and is provided with a first inlet and a first outlet; the conical conduit A22 is arranged in front of the conical conduit A21, and is provided with a second inlet, a second outlet and a conical tube body connecting the second inlet and the second outlet, the first inlet corresponds to the second outlet, the size of the second outlet is larger than the size of the first outlet and smaller than the size of the first inlet, wherein a plurality of steel strands arranged side by side in a single layer are converged and output as a plurality of steel strands distributed in multiple layers through the conical tube body, and the plurality of steel strands distributed in multiple layers are converged and output as a whole bundle of steel strands through the conical conical conduit A21; the relay conveying device A1 includes an input end, a transmission mechanism and an output end, the input end is used to access a plurality of steel strands arranged side by side in a single layer, the output end is adapted to the second inlet, and the transmission mechanism is used to push the plurality of steel strands arranged side by side in a single layer into the second inlet.

[0060] Continue to refer Figure 7 , Figure 8 The beam-penetrating jack B1 includes a first cylinder B12, a first piston B13 and a beam-penetrating channel B11 that passes through both ends of the first cylinder B12, and the first outlet is adapted to the inlet of the beam-penetrating channel B11; the clamping jack B2 includes a second cylinder B23, a second piston B24, a support channel B21 that passes through both ends of the second cylinder B23, and a clamping assembly B22, the support channel B21 is connected to the beam-penetrating channel B11, the first piston B13 is fixedly connected to the first end of the second cylinder B23, the clamping assembly B22 is connected to the second end of the second cylinder B23, when the second piston B24 moves toward the second end, it can drive the clamping assembly B22 to perform a clamping action, when the second piston B24 moves toward the first end, it can drive the clamping assembly B22 to release and restore to an initial state.

[0061] This embodiment realizes the functions of side-by-side transportation of multiple steel strands, bundling and circular bundling of the entire bundle of steel strands through the coordinated use of the bundling device A2, the relay conveying device A1, the bundle threading jack B1 and the clamping jack B2, thereby improving the work efficiency of bundling and bundling.

[0062] Continue to refer Figure 5In this embodiment, the converging conical tube A21 and the converging conical tube A22 are arranged on the frame with a common center axis, the second inlet is an elliptical inlet A222, and the second outlet is a circular outlet A221. The circular outlet A221 and the elliptical inlet A222 are arranged with a common center axis, and the major axis of the elliptical inlet A222 is greater than the diameter of the circular outlet A221, and the minor axis of the elliptical inlet A222 is less than the diameter of the circular outlet A221. Specifically, the conical tube body is formed by the elliptical inlet A222 extending toward the circular outlet A221, wherein the major axis of the elliptical inlet A222 is gradually shortened to the diameter of the circular outlet A221, and the minor axis of the elliptical inlet A222 is gradually extended to the diameter of the circular outlet A221. The inner wall of the conical tube body is smooth, and multiple steel strands in a single-layer side-by-side state can be efficiently guided into a multi-layer distribution state.

[0063] Furthermore, the converging cone tube A21 is a conical tube structure, the diameter of the first inlet is larger than the diameter of the circular outlet A221, and the diameter of the first outlet is smaller than the diameter of the circular outlet A221, and the converging cone tube A21 can further converge the multiple strands of multi-layer distribution output by the converging cone tube A22 into a bundle. Preferably, the minor axis of the elliptical inlet A222 is larger than the diameter of a single strand, and the diameter of the first outlet is slightly larger than three times the diameter of a single strand, so that the middle strand of the multiple strands transported side by side can become the center of convergence of the entire bundle of strands.

[0064] The converging cone tube A21 in this embodiment is horizontally movably disposed on the frame, so as to adjust the distance between the converging cone tube A21 and the converging cone tube A22. Specifically, the frame includes a fixed bracket A23, a movable bracket A24, a support rod A25, a connecting piece A26 and a slide rail platform A27. The fixed bracket A23 is installed at the output end of the relay conveying device A1. The fixed bracket A23 and the movable bracket A24 are connected by multiple support rods A25. The movable bracket A24 is horizontally movably arranged on the support rod A25. The converging cone tube A21 is installed on the movable bracket A24, and the converging cone tube A22 is installed on the fixed bracket A23. The upper end of the connecting piece A26 is fixedly connected to the movable bracket A24, and the lower end is adapted to the slide rail at the top of the slide rail platform A27. The movable bracket A24 can drive the connecting piece A26 to slide horizontally on the support rod A25. The slide rail platform A27 supports the movable bracket A24 through the connecting piece A26. The horizontal distance between the converging cone tube A21 and the converging cone tube A22 can be adjusted by horizontally moving the movable bracket A24.

[0065] Preferably, in this embodiment, four support rods A25 are provided, and one ends of the four support rods A25 are respectively fixedly installed on the four corners of the fixed bracket A23, and the four corners of the mobile bracket A24 are sleeved on the support rods A25, which can increase the stability of the horizontal movement of the mobile bracket A24, and the converging cone tube A21 is installed in the middle of the mobile bracket A24, and the converging cone tube A21 and the mobile bracket A24 are arranged on the same center axis, and the converging cone tube A22 is installed in the middle of the fixed bracket A23, and the converging cone tube A22 and the fixed bracket A24 are arranged on the same center axis, which can increase the firmness of the converging cone tube A21 and the converging cone tube A22 being installed on the same center axis, and it is not easy to cause center misalignment when multiple steel wires are passed side by side.

[0066] In addition, the bundling device A2 also includes a triangular roller group A28, which is arranged at the first outlet and is used to guide the entire bundle of steel strands to pass through the center of the triangular roller group A28. The triangular roller group A28 is provided with three pulleys, and the three pulleys are distributed at the first outlet with vertices of an equilateral triangle. The minimum distance between the pulley and the center of the triangular roller group A28 is slightly smaller than the radius of the first outlet, which can avoid excessive scratching between the entire bundle of steel strands and the first outlet, thereby causing wear of the entire bundle of steel strands or the first outlet.

[0067] The transmission mechanism of the relay conveying device A1 in this embodiment includes a motor A11, a conveying wheel group A12 and a clamping assembly A13. Multiple steel strands are placed side by side on the horizontally arranged conveying wheel group A12. The clamping assembly A13 is used to squeeze the multiple steel strands downward from the top of the conveying wheel group A12. The motor A11 is used to drive the pulley of the conveying wheel group A12 to rotate and drive the multiple steel strands to move horizontally. Specifically, the transmission mechanism of the relay conveying device A1 also includes a base A14. A wire feed groove A141 is provided on one side above the base A14, corresponding to the input end of the relay conveying device A1. A transmission assembly, such as a transmission gear set, is provided inside the base A14. The conveying wheel group A12 is horizontally installed in the base A14 below the wire feed groove A141. The clamping assembly A13 includes a lower pressure wheel group A131 and a clamping cylinder A132. The lower pressure wheel group A131 is horizontally arranged on the conveying wheel group A12. At the top, the top is fixedly connected to the movable end of the clamping cylinder A132, the bottom pulley is slidably connected to the upper end of the steel strand transported on the conveying wheel group A12, and the fixed end of the clamping cylinder A132 is fixedly connected to the top of the base A14, which is used to drive the lower pressure wheel group A131 to move up and down, so that the lower pressure wheel group A131 can squeeze multiple steel strands downward from above the conveying wheel group A12, which can increase the conveying power of the steel strands and avoid the deviation of the steel strands during side-by-side transportation.

[0068] This embodiment also includes an end fixing assembly A3, which is arranged outside the first outlet and is used to fix the end of the entire bundle of steel strands. Specifically, the end fixing assembly A3 includes a support platform A31, a clamping claw A32 and a guide head A33, the support platform A31 is arranged outside the first outlet, the clamping claw A32 is installed above the support platform A31, the clamping claw A32 is used to clamp and fix the guide head A33, and the guide head A33 is used to fix the end of the entire bundle of steel strands.

[0069] Continue to refer Figure 6 The guide head A33 includes a circular sleeve A331, a wedge-shaped clip A332 and a conical sleeve A333. The wedge-shaped clip A332 is radially movably arranged in the outlet of the circular sleeve A331. The conical sleeve A333 is threadedly connected to the outlet of the circular sleeve A331. The wedge-shaped clip A332 is elastically abutted against the conical sleeve A333. The conical sleeve A333 squeezes the wedge-shaped clip A332 toward the inner side of the circular sleeve A331 to perform a clamping action. The guide head A33 is arranged on the same central axis as the converging cone A21, and the end of the middle steel strand among the multiple steel strands arranged in a single layer and arranged side by side protrudes from the other steel strands. When the entire bundle of steel strands passes into the guide head A33, the end of the middle steel strand squeezes the wedge-shaped clamp A332, causing the wedge-shaped clamp A332 to move radially outward to loosen, and further compress the elastic mechanism in the conical sleeve A333. The end of the middle steel strand passes through the wedge-shaped clamp A332 and enters the conical sleeve A333. The ends of the other steel strands pass into the circular sleeve A331. The elastic mechanism in the conical sleeve A333 squeezes the wedge-shaped clamp A332 to clamp and fix the end of the middle steel strand of the entire bundle. The clamp A32 releases the guide head A33 that has fixed the end of the entire bundle of steel strands, and the entire bundle of steel strands and the guide head A33 can continue to be transported forward to obtain the required length of the entire bundle of steel strands.

[0070] Continue to refer Fig. 9 , Fig.10 and Fig.11In this embodiment, the clamping assembly B22 includes a support sleeve B221, a clip B222, a spring B223, a three-finger claw B224 and a slider B225. The support sleeve B221 is installed on the outer side of the second end of the second cylinder body B23. The outlet of the support sleeve B221 is connected to the support channel B21. The clip B222 is radially movably arranged on the inner peripheral edge of the outlet of the support sleeve B221. The clip B222 is slidably connected to the second piston B24. The second piston B24 is used to drive the clip B22 2 performs a clamping action, the clamping piece B222 is set to a three-petal structure, and the separation surfaces on both sides of the clamping piece B222 are provided with an angle, and the inclination is set between 1° and 12°, which can effectively increase the clamping stability of the entire bundle of steel strands; two adjacent clamping pieces B222 are elastically connected by a spring B223, and when the second piston B24 drives the clamping piece B222 to perform a clamping action, the spring B223 is in a compressed state, and when the clamping assembly B22 returns to its initial state, the spring B223 is in a relaxed state, and the spring B223 is relaxed. The clamping piece B222 can be stretched apart to move them away from each other, thereby realizing the function of automatic resetting of the clamping assembly B22; the three-finger claws B224 are arranged in a circular array on the outer peripheral edge of the outlet of the support sleeve B221, and are fixedly connected to the slider B225, the slider B225 passes through the sliding groove on the peripheral edge of the outlet of the support sleeve B221 and is fixedly connected to the clamping piece B222, the slider B225 is slidably connected to the support sleeve B221, and each slider B225 is respectively connected to a three-finger claw B224, a clamping piece B22 2 connection, when the second piston B24 drives the clamping piece B222 to perform the clamping action, the spring B223 is compressed by force, and the clamping piece B222 drives the slider B225 and the three-finger claw B224 to move and close along the radial direction of the outlet of the support sleeve B221, thereby clamping and fixing the entire bundle of steel strands inside the support channel B21. When the clamping piece B222 is opened, the three-finger claw B224 can reduce the gap between the three-petal clamping piece, play the role of gathering multiple steel strands, and avoid the loose clamping and uneven force of the entire bundle of steel strands. It is worth noting that the inner surface of the clamping piece B222 is provided with a large pitch spiral line protrusion, which can increase the friction between the clamping piece B222 and the outer side of the steel strand.

[0071] Furthermore, the present embodiment proposes an assembly structure of a bundle threading jack B1 and a clamping jack B2, wherein the bundle threading jack B1 and the clamping jack B2 are arranged on a common center axis, the bundle threading channel B11 and the bundle threading jack B1 are arranged on a common center axis, the supporting channel B21 and the clamping jack B2 are arranged on a common center axis, and the bundle threading channel B11 and the supporting channel B21 are arranged on a common center axis, which can improve the stability of the entire bundle threading device of the jack during operation; in addition, the bundle threading channel B11 runs through both ends of the first piston B13, the supporting channel B21 runs through both ends of the second piston B24, both ends of the second piston B24 are provided with inclined surfaces, and the clamping assembly B22 is provided with a conical surface matched with the inclined surface, that is, the clamping piece B222 is provided with a conical surface, and when the second piston B24 moves toward the second end, the inclined surface and the conical surface abut against each other, which can gradually squeeze the clamping piece B222 of the clamping assembly B2 to close, and can meet the clamping and fixing requirements of the entire bundle of steel strands of different diameters. In addition, the inlet diameter of the second piston B24 is larger than the diameter of the bundle passage B11, and a slope is provided at the inlet of the second piston B24 so that the entire bundle of steel strands transported by the bundle passage B11 can enter the support passage B21 more smoothly.

[0072] Furthermore, it also includes a limit component B3, which is arranged outside the entrance of the bundle passage B11. The limit component B3 includes a hydraulic chuck B31. The inner wall of the hydraulic chuck B31 is slidingly connected to the side of the entire bundle of steel strands. The hydraulic chuck B31 is connected to the hydraulic system. Before the clamping component B22 releases the entire bundle of steel strands and the first piston B13 returns, the hydraulic chuck B31 is used to clamp and fix the entire bundle of steel strands to prevent the entire bundle of steel strands from retreating when the first piston B13 returns; the pressure measuring module is used to detect whether the pressure of the hydraulic chuck B31 clamping the entire bundle of steel strands reaches a preset pressure value. Specifically, the first pressure sensor can be set to detect whether the pressure of the hydraulic chuck B31 clamping the entire bundle of steel strands reaches a preset pressure value. The preset pressure value of the hydraulic chuck B31 clamping the entire bundle of steel strands and the preset pressure value of the clamping component B22 clamping the entire bundle of steel strands are set to the same value.

[0073] It is worth mentioning that the limiting assembly B3 also includes an inlet frame B32 connected to the first cylinder body B12, and four rotating rollers B33 are vertically arranged in pairs on the inner wall of the inlet frame B32. The hydraulic chuck B31 is arranged in the inlet frame B32 near the entrance of the bundle threading channel B11. When the whole bundle of steel strands is fed into the inlet frame B32, the outer side surface of the whole bundle of steel strands is slidably connected with the rotating roller B33, which can avoid excessive friction between the whole bundle of steel strands and the entrance of the bundle threading channel B11.

[0074] Furthermore, the present embodiment also includes a mobile lifting platform C1, on which the beam-penetrating jack B1 is installed, and the mobile lifting platform C1 can move in the directions of the X-axis, the Y-axis, and the Z-axis.

[0075] It is worth noting that the control system in this embodiment includes a distance measuring module, a pressure measuring module, a positioning module and a hydraulic system. The bundle threading jack B1 and the clamping jack B2 are both hydraulic jacks. The hydraulic systems are connected to the bundle threading jack B1 and the clamping jack B2 respectively. The hydraulic system can control the working states of the bundle threading jack B1 and the clamping jack B2 respectively; the distance measuring module is used to detect whether the end of the whole bundle of steel strands is delivered to the preset position. Specifically, an infrared distance measuring sensor can be set on the outside of the outlet of the support sleeve B221 to detect whether the end of the whole bundle of steel strands is delivered to the preset position outside the outlet of the support sleeve B221; the distance measuring module is also used to collect the bundle threading jack The cumulative advancement distance of the jack B1, specifically, the cumulative advancement distance of the first piston B13 can be collected by setting a pull rope displacement sensor, which can accurately control the exposed length of the entire bundle of steel strands after passing through the corrugated pipe channel; the pressure measuring module is used to detect whether the pressure of the clamping component B22 clamping the entire bundle of steel strands reaches the preset pressure value, specifically, the second pressure sensor can be set to detect whether the pressure of the clamping component B22 clamping the entire bundle of steel strands reaches the preset pressure value, and the preset pressure value needs to be set according to the clamping force of the clamping component 22 clamping the entire bundle of steel strands of different sizes. Generally, the greater the weight of the entire bundle of steel strands, the greater the required clamping force and the greater the preset pressure value. The mobile lifting platform C1 moves to the vicinity of the entrance position of the channel of the corrugated pipe to be penetrated, and the positioning module and the mobile lifting platform C1 cooperate to achieve the alignment and positioning of the bundle channel B11 and the channel of the corrugated pipe to be penetrated.

[0076] like Fig.12 As shown, the present invention discloses a steel strand bundle-forming and bundling method, which is applied to the above-mentioned steel strand bundle-forming and bundling device. The steel strand bundle-forming and bundling method comprises:

[0077] Step S1, the relay conveying device A1 compresses the multiple steel strands arranged in a single layer and conveys them into the bundling device A2. Specifically, the hydraulic system drives the compressing cylinder A132 to compress the multiple steel strands downward, and the motor A11 drives the conveying wheel group A12 to horizontally convey the multiple steel strands arranged in a single layer into the bundling device A2.

[0078] Step S2, the bundling device A2 outputs a whole bundle of steel strands with fixed ends. Specifically, multiple steel strands are sequentially gathered into a whole bundle of steel strands through the conical conduit A22 and the conical conduit A21, and the ends of the whole bundle of steel strands enter the guide head A33, and the relay conveying device A1 stops conveying, the guide head A33 fixes the ends of the whole bundle of steel strands, the clamp A32 releases the guide head A33, and the relay conveying device A1 continues conveying.

[0079] Step S3, the whole bundle of steel strands passes through the bundle passage B11 and the support passage B21 in sequence. Specifically, the relay conveying device A1 continues to convey so that the whole bundle of steel strands passes through the bundle passage B11 and the support passage B21 in sequence. When the guide head A33 reaches the preset position, the relay conveying device A1 stops conveying and releases the steel strands.

[0080] Step S4, the clamping jack B2 and the limit assembly B3 clamp and fix the entire bundle of steel strands. Specifically, the pressure measuring module respectively detects the pressure of the clamping assembly B22 and the hydraulic chuck B31 clamping the entire bundle of steel strands in real time, and controls the pressure of clamping the entire bundle of steel strands to maintain a preset pressure value.

[0081] Step S5, the mobile lifting platform C1 moves to the entrance position of the channel to be threaded with the corrugated pipe, and cooperates with the positioning module to achieve alignment and positioning of the threading channel B11 and the channel to be threaded with the corrugated pipe. Specifically, when the alignment and positioning is completed, the hydraulic clamp B31 releases the entire bundle of steel strands.

[0082] Step S6, the bundle threading jack B1 and the clamping jack B2 cooperate to push the entire bundle of steel strands into the channel of the corrugated pipe to be threaded. Specifically, the steps of the bundle threading jack B1 and the clamping jack B2 cooperating to complete a single cycle include: the first piston B13 is pushed to the maximum distance, the clamping assembly B22 releases the entire bundle of steel strands, the hydraulic chuck B31 clamps and fixes the entire bundle of steel strands, the first piston B13 returns to the initial position, the hydraulic chuck B31 releases the entire bundle of steel strands, and the clamping assembly B22 clamps and fixes the entire bundle of steel strands.

[0083] Step S7, when the cumulative pushing distance of the whole bundle of steel strands reaches the preset length, the threading task is terminated, the clamping assembly B22 releases the whole bundle of steel strands, the first piston B13 returns to the initial position, and the mobile lifting platform C1 returns to the initial position. It is worth noting that the preset length is set according to the exposed length requirement of the end of the whole bundle of steel strands after passing through the corrugated pipe channel, which can be obtained by measurement. The distance measurement module collects the cumulative pushing distance of the first piston B13 in real time. When the cumulative pushing distance reaches the preset length, the threading task is terminated.

[0084] The steel strand bundling and threading method in this embodiment includes controlling the relay conveying device A1 to convey multiple steel strands side by side into the bundling device A2 to obtain a whole bundle of steel strands. By sequentially sending the whole bundle of steel strands into the threading channel B11 and the support channel B21, and controlling the coordinated actions of the clamping assembly B22, the first piston B13 and the hydraulic chuck B31, the clamping, pushing and releasing return operations of the whole bundle of steel strands can be realized, thereby efficiently completing the cyclic threading operation.

[0085] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A steel strand bundling and threading device, characterized in that: include: A bundling device, comprising a frame; a conical conduit disposed on the frame, the conical conduit being provided with a first inlet and a first outlet, the size of the first inlet being larger than the size of the first outlet; a conical conduit disposed in front of the conical conduit, the conical conduit being provided with a second inlet, a second outlet and a conical tube body connecting the second inlet and the second outlet, the first inlet corresponding to the second outlet, the size of the second outlet being larger than the size of the first outlet and smaller than the size of the first inlet, wherein a plurality of steel strands arranged side by side in a single layer are converged and output as a plurality of steel strands distributed in multiple layers through the conical tube body, and the plurality of steel strands distributed in multiple layers are converged and output as a whole bundle of steel strands through the conical conduit; A relay conveying device, comprising an input end, a conveying mechanism and an output end, wherein the input end is used to receive a plurality of steel strands arranged side by side in a single layer, the output end is adapted to the second inlet, and the conveying mechanism is used to push the plurality of steel strands arranged side by side in a single layer into the second inlet; A beam-penetrating jack, comprising a first cylinder, a first piston disposed in the first cylinder, and a beam-penetrating channel penetrating both ends of the first cylinder, wherein the first outlet is adapted to an inlet of the beam-penetrating channel; A clamping jack, comprising a second cylinder, a second piston disposed in the second cylinder, a support channel penetrating both ends of the second cylinder, and a clamping assembly, wherein the support channel is communicated with the beam-through channel, the first piston is fixedly connected to the first end of the second cylinder, and the clamping assembly is connected to the second end of the second cylinder, and when the second piston moves toward the second end, the clamping assembly can be driven to perform a clamping action, and when the second piston moves toward the first end, the clamping assembly performs a loosening action and returns to an initial state; and A control system is respectively connected to the relay conveying device, the beam threading jack and the clamping jack.

2. A steel strand bundling and threading device according to claim 1, characterized in that: The converging cone pipe and the converging cone-shaped pipe are arranged on the frame with a common center axis, the second inlet is an elliptical inlet, the second outlet is a circular outlet, and the circular outlet and the elliptical inlet are arranged with a common center axis.

3. A steel strand bundling and threading device according to claim 2, characterized in that: The bundling device also includes a triangular roller group, which is arranged at the first outlet and is used to guide the entire bundle of steel strands to pass through the center of the triangular roller group.

4. A steel strand bundling and threading device according to claim 3, characterized in that: The conveying mechanism includes a motor, a conveying wheel group and a clamping assembly. Multiple steel strands are placed side by side on the horizontally arranged conveying wheel group. The clamping assembly is used to squeeze the multiple steel strands downward from the top of the conveying wheel group. The motor is used to drive the pulley of the conveying wheel group to rotate and drive the multiple steel strands to move horizontally.

5. A steel strand bundling and threading device according to claim 4, characterized in that: It also includes an end fixing assembly, which includes a supporting platform, a clamp and a guide head. The supporting platform is arranged on the outside of the first outlet, and the clamp is installed above the supporting platform for clamping and fixing the guide head. The guide head is used to fix the end of the entire bundle of steel strands.

6. The steel strand bundling and threading device according to claim 1, characterized in that: The clamping assembly includes a support sleeve and a clip. The support sleeve is installed on the outer side of the second end. The outlet of the support sleeve is connected to the support channel. The clip is radially movably arranged on the inner periphery of the outlet of the support sleeve. The clip is slidably connected to the second piston. The second piston is used to drive the clip to perform a clamping action.

7. A steel strand bundling and threading device according to claim 6, characterized in that: The clamping assembly also includes a spring, a three-finger claw and a slider. Two adjacent clips are elastically connected by the spring. The three-finger claw is arranged in a circular array on the outer periphery of the outlet of the support sleeve and is fixedly connected to the slider. The slider is fixedly connected to the clip, and the slider is slidably connected to the support sleeve. When the second piston drives the clip to perform a clamping action, the spring is in a compressed state. When the clamping assembly returns to its initial state, the spring is in a relaxed state.

8. The steel strand bundling and threading device according to claim 7, characterized in that: It also includes a mobile lifting platform, and the beam-piercing jack is installed on the mobile lifting platform.

9. A steel strand bundling and threading device according to claim 8, characterized in that: The control system includes a distance measuring module, a pressure measuring module and a positioning module. The distance measuring module is used to detect the end position of the entire bundle of steel strands and to collect the cumulative advancement distance of the bundle threading jack. The pressure measuring module is used to respectively detect the pressure of the clamping assembly and the limit assembly clamping the entire bundle of steel strands. The positioning module and the mobile lifting platform cooperate to achieve the alignment and positioning of the bundle threading channel and the channel of the corrugated pipe to be threaded.

10. A method for bundling and threading steel strands, characterized in that: The steel strand bundling and threading device according to any one of claims 1 to 9, wherein the steel strand bundling and threading method comprises: Step S1, the relay conveying device compresses a plurality of steel strands arranged side by side in a single layer and conveys them into the bundling device; Step S2, the bundling device outputs a whole bundle of steel strands with fixed ends; Step S3, the entire bundle of steel strands passes through the bundle passage and the support passage in sequence; Step S4, the clamping jack and the limiting assembly respectively clamp and fix the entire bundle of steel strands; Step S5, the mobile lifting platform moves to the entrance position of the channel of the corrugated pipe to be threaded with the beam, and cooperates with the positioning module to achieve alignment and positioning of the beam threading channel and the channel of the corrugated pipe to be threaded with the beam; Step S6, the bundle threading jack and the clamping jack cooperate to push the entire bundle of steel strands into the channel of the corrugated pipe to be threaded; Step S7, when the cumulative pushing distance of the whole bundle of steel strands reaches the preset length, the bundle threading task is completed, the clamping assembly releases the whole bundle of steel strands, the first piston returns to the initial position, and the mobile lifting platform returns to the initial position.

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