Prestressed clamping piece overturning structure and double-track conveying equipment and method

Abstract

The invention discloses a prestressed clamping piece overturning structure and double-rail conveying equipment and method, and the structure comprises an overturning block which is provided with a driving part; the assembling box is arranged below the overturning block; the two L-shaped overturning grooves are symmetrically formed in the overturning block, the L-shaped overturning grooves are used for bearing the prestressed clamping pieces which are conveyed by the clamping piece track and provided with downward notches, and after the prestressed clamping pieces completely enter the L-shaped overturning grooves, the notches of the two prestressed clamping pieces are turned to be opposite to each other from downward; and when the driving piece drives the turnover block to turn over from the horizontal state to the vertical state, the prestressed clamping pieces fall into the assembly box below under the action of gravity. The device is simple in structure, automation and lean of the whole clamping piece conveying, overturning and assembling process are achieved through the overturning structure, the device has the advantages of being compact in structure, low in cost, high in efficiency, stable in operation, easy to maintain and the like, and the development requirement of modern intelligent manufacturing is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prestressed clamping piece conveying, in particular to a prestressed clamping piece overturning structure, a double-track conveying device and a method. BACKGROUND

[0002] As a key component in prestressed anchoring systems, prestressed clamping pieces are widely used in major engineering structures such as bridges, tunnels, high-rise buildings and rail transit. Their main function is to lock and transfer prestress after the prestressed tendon (such as steel strand) is tensioned, ensuring the stability and safety of the structure. With the rapid development of infrastructure construction, the demand for prestressed clamping pieces has increased dramatically, and traditional manual packaging methods have been difficult to meet the requirements of large-scale and high-quality production.

[0003] Currently, most enterprises still use manual methods to package clamping pieces. Due to factors such as the proficiency of workers and physical fatigue, the packaging speed is slow and the efficiency is low. When faced with large quantities of orders, it is easy to form a production bottleneck, affecting the product delivery cycle. At the same time, manual operation has large human differences, and non-standard packaging can cause clamping pieces to knock, loosen, or even be damaged during transportation and storage, thereby affecting their performance and posing a quality risk.

[0004] Although some enterprises have introduced automated packaging equipment, existing technologies mostly use a "single piece double-track clamping feeding" packaging method, that is, two independent clamping jaws are used to sequentially grab and load clamping pieces from both sides into the packaging station. This method has many defects: first, the processes are connected in series, and any failure (such as clamping jaw failure, sensor misjudgment, etc.) in any link will force the entire packaging process to be interrupted, resulting in low equipment utilization, long maintenance time, and serious impact on production continuity; second, this structure requires two vibration discs for feeding, which not only occupies a large space, but also increases the cost of equipment purchase and maintenance, and increases energy consumption and operating expenses; third, during clamping piece assembly, if the first clamping piece is not positioned accurately or is positioned too high, it will cause the second clamping piece to be unable to be placed smoothly, resulting in uneven height or jamming of the two clamping pieces, affecting subsequent sleeve ring assembly and other processes, and increasing the failure rate of assembly, thereby affecting the overall packaging yield. In addition, the above-mentioned automated solution has a complex process and relies on multiple execution elements (such as double clamping jaws and multiple photoelectric sensors) to work together, resulting in poor system stability and high difficulty in debugging and maintenance. Therefore, a prestressed clamping piece overturning structure, a double-track conveying device and a method are proposed. SUMMARY

[0005] The present application aims to provide a prestressed clamping piece overturning structure, a double-track conveying device and a method to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a prestressed clamping piece overturning structure, comprising: A turnover block is provided with a driving member; An assembling box is arranged below the turnover block; and Two L-shaped turnover grooves are symmetrically arranged on the turnover block, and are used for receiving the prestressed clamps with downward gaps conveyed by the clamp rail. When the prestressed clamps completely enter the L-shaped turnover grooves, the gaps of the two prestressed clamps are turned to be opposite to each other. When the turnover block is turned from a horizontal state to a vertical state by the driving member, the prestressed clamps fall into the assembling box below under the action of gravity.

[0007] As a further scheme of the present application, a frame is further arranged on the upper end surface of the assembling box, and the inside of the frame is matched with the turnover block.

[0008] As a further scheme of the present application, the assembling box is a trapezoidal structure with through upper and lower end surfaces, and the trapezoidal structure is symmetrically arranged along a vertical line in the center. A partition plate is arranged in the inside of the assembling box, and the partition plate is adjacent to the lower end surface of the assembling box. In addition, an inclined plate is symmetrically arranged in the inside of the assembling box, and the inclined plate is inclined from top to bottom to one side of the partition plate.

[0009] As a further scheme of the present application, the driving member comprises a connecting block connected with the end of the turnover block. The other end of the connecting block is connected with the end of a first hydraulic cylinder. The other end of the first hydraulic cylinder is connected with a fixed frame.

[0010] As a further scheme of the present application, a clamp pushing box is further arranged below the assembling box. The clamp pushing box comprises a moving box. A second hydraulic cylinder is arranged on the bottom of the moving box, and is used for controlling the moving box to move. An receiving groove is formed on the moving box, and is used for receiving the prestressed clamps with wedge shapes.

[0011] A double-rail conveying device comprises a prestressed clamp turnover structure, and further comprises a workbench and a support frame arranged on the workbench. The support frame is respectively arranged with a sorting platform and the prestressed clamp turnover structure. The workbench is further respectively arranged with a feeding mechanism and a packaging disc.

[0012] A conveying method of prestressed clamps is realized by using the double-rail conveying device, and comprises the following steps. S1: The clamps are conveyed one by one to the two clamp rails on the support by the sorting platform, and the gaps of the clamps are downward during the conveying process. S2: The clamps continue to be conveyed along the clamp rails, and enter the L-shaped turnover grooves of the turnover block. The clamps are turned by 90 degrees around the axis by using the structural characteristics of the stress-free point on one side of the clamps under the guidance of the L-shaped turnover grooves, so that the clamps are turned from the state of downward gaps to the state of gaps to the side. S3: The whole overturning block is driven to overturn 90 degrees by the driving member, so that the L-shaped overturning groove in the horizontal state is converted into the vertical state, and the clamping piece slides from the L-shaped overturning groove under the action of gravity and enters the assembly box below; S4: The two overturned clamping pieces are automatically combined to form a wedge-shaped structure in the assembly box and fall into the clamping piece pushing box below the assembly box; S5: The clamping piece pushing box is pushed by the hydraulic cylinder, and the clamping pieces arranged in the wedge shape in the clamping piece pushing box are pushed into the packaging disc, so that the subsequent rubber ring sleeving operation is carried out.

[0013] Compared with the prior art, the beneficial effects of the present application are: The present application adopts a double-clamping-piece track synchronous conveying structure, which has higher conveying efficiency and running stability compared with the prior art two-clamping-piece opposite independent feeding mode, and the structure is simplified, and maintenance is convenient. By only needing one vibration disc for unified feeding, the number of equipment is reduced, the manufacturing cost and failure rate are reduced, the occupied space of the equipment is significantly saved, and the compactness of the production line layout and the utilization rate of the site are improved.

[0014] In the clamping piece posture adjustment aspect, by using the guide structure of the L-shaped overturning groove, the clamping piece can be automatically overturned 90 degrees by relying on its own structural characteristics and gravity without intervention of external driving devices, the gap is accurately converted from downward to lateral, no additional execution element is needed, the control logic is simplified, and the overturning reliability is improved.

[0015] The overturned clamping piece falls into the assembly box, and by the double slide structure arranged inside the assembly box, the two clamping pieces can be automatically combined along the preset track to form a stable wedge-shaped combined structure, realizing self-alignment, self-positioning and efficient assembly, effectively avoiding the jamming problem caused by inaccurate positioning or high position of the first piece when the second piece is sequentially put into the traditional single piece, and significantly improving the assembly success rate and packaging yield.

[0016] In summary, the present application realizes the automation and leanization of the whole process of clamping piece conveying, overturning and assembly, has the advantages of compact structure, low cost, high efficiency, stable operation, easy maintenance and the like, and meets the development needs of modern intelligent manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the double-track conveying equipment of the present application; Figure 2 It is a overturning structure schematic view of the present application; Figure 3 It is a combination schematic view of the overturning structure, feeding structure and packaging structure of the present application; Figure 4 It is an internal schematic view of the assembly box of the present application; In the figure: 100, workbench; 200, support frame; 300, sorting platform; 400, turnover structure; 410, clamping piece track; 420, frame; 430, assembly box; 431, partition; 432, inclined plate; 440, turnover block; 441, L-shaped turnover groove; 450, driving piece; 4501, connecting block; 4502, first hydraulic cylinder; 4503, fixing frame; 460, clamping piece pushing box; 4601, moving box; 4602, second hydraulic cylinder; 4603, material receiving groove; 500, feeding structure; 600, packaging structure. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] Please refer to Figures 1-4 In the embodiments of the present application, a prestressed clamping piece turnover structure comprises: The turnover block 440 is provided with the driving piece 450 thereon; The assembly box 430 is arranged below the turnover block 440; and The two L-shaped turnover grooves 441 arranged symmetrically on the turnover block 440 are used for receiving the prestressed clamping pieces with downward gaps conveyed by the clamping piece track 410. When the prestressed clamping pieces completely enter the L-shaped turnover grooves 441, the gaps of the two prestressed clamping pieces are turned from downward to opposite to each other. When the driving piece 450 drives the turnover block 440 to turn from a horizontal state to a vertical state, the prestressed clamping pieces fall into the assembly box 430 below under the action of gravity.

[0020] Specifically, the number of the clamping piece tracks 410 is two, and the two clamping piece tracks 410 are arranged in parallel. The two clamping piece tracks 410 both convey the prestressed clamping pieces with downward gaps. One end of the clamping piece track 410 is connected to the sorting platform 300, and the other end of the clamping piece track 410 is connected to the turnover block 440, so as to realize the conveying of the prestressed clamping pieces from the sorting platform 300 to the turnover block 440. The frame 420 is arranged on the upper end face of the assembly box 430, and the frame 420 and the assembly box 430 are connected to each other and communicate with each other. The turnover block 440 is located in the frame 420 and is rotationally connected with the frame 420, so that the turnover action of the turnover block 440 is not limited by the frame 420. The L-shaped turnover groove 441 is composed of a first cavity and a second cavity which communicate with each other. The side wall of the second cavity is in the form of a circular arc, which is beneficial to the smooth turnover of the prestressed clamping pieces and avoids the occurrence of jamming in the turnover process.

[0021] During the working process, the sorting platform 300 sends the prestressed clamps into two clamp tracks 410 respectively, and transports them along the tracks to the first cavity of the L-shaped turnover groove 441. Since one end of the prestressed clamp is suspended and loses support, it automatically turns over under the action of gravity, changes the gap from downward to opposite, completes the posture adjustment, and then enters the second cavity. Subsequently, the driving part 450 drives the turnover block 440 to rotate in the frame 420, so that the opening of the second cavity is turned over from the horizontal state to the vertical downward. At this time, the small head of the two prestressed clamps faces downward and falls into the assembly box 430 along the frame 420 under the action of gravity, and automatically combines to form a wedge-shaped structure, completing the preliminary automatic assembly of the prestressed clamps and facilitating subsequent simultaneous assembly.

[0022] Referring to Figure 4 In an embodiment, the assembly box 430 is preferably a trapezoidal structure with through upper and lower end faces, which is symmetrically arranged along the vertical line in the center. A partition plate 431 is installed in the interior of the assembly box 430, adjacent to the lower end face of the assembly box 430. Symmetrically arranged in the interior of the assembly box 430 are inclined plates 432, which are inclined from top to bottom toward one side of the partition plate 431.

[0023] Specifically, the assembly box 430 is fixedly installed on the support frame 200, and has two inclined plates 432 in the interior, forming two passages, which are located directly below and correspond to the two L-shaped turnover grooves 441 respectively. The prestressed clamps falling through the L-shaped turnover grooves 441 can smoothly enter the corresponding passages and gradually move inward under the guidance of the passages until they come into contact with the surface of the partition plate 431 in the middle. At this time, the two prestressed clamps are respectively abutted on the two sides of the partition plate 431 and are separated only by the partition plate 431, thereby completing the positioning and alignment of the two prestressed clamps and realizing their automatic combination into a wedge-shaped structure.

[0024] Referring to Figure 3 In an embodiment, the driving part 450 includes a connecting block 4501 connected to the end of the turnover block 440, the other end of the connecting block 4501 is connected to the end of the first hydraulic cylinder 4502, and the other end of the first hydraulic cylinder 4502 is connected to the fixed frame 4503.

[0025] Specifically, the fixed frame 4503 is bolted to the support frame 200 at the bottom to provide stable support for the first hydraulic cylinder 4502. The other end of the first hydraulic cylinder 4502 is connected to the connecting block 4501, and the connecting block 4501 is connected to the end of the turnover block 440 that penetrates the frame 420. When the first hydraulic cylinder 4502 is in the initial extended state, it drives the tilting block 440 to rotate until the L-shaped tilting groove 441 is horizontally arranged. At this time, the prestressed clamping pieces in the clamping piece track 410 can smoothly enter the L-shaped tilting groove 441. When the first hydraulic cylinder 4502 retracts, it drives the tilting block 440 to rotate through the connecting block 4501, causing the L-shaped tilting groove 441 to flip from the horizontal state to the vertical state. In this state, the prestressed clamping pieces in the clamping piece track 410 can no longer enter the L-shaped tilting groove 441. At the same time, the prestressed clamping pieces in the groove slide down along the L-shaped tilting groove 441 under the action of gravity, realizing the directional falling and conveying of the clamping pieces.

[0026] Two fiber optic sensors are installed on the flipping block 440 to detect whether prestressed clamping pieces have entered the two L-shaped flipping slots 441. Both fiber optic sensors are electrically connected to the first hydraulic cylinder 4502. When both fiber optic sensors simultaneously detect the presence of prestressed clamping pieces in the corresponding L-shaped flipping slots 441, the system automatically triggers a signal to control the first hydraulic cylinder 4502 to switch from its initial extended state to its retracted state, thereby driving the flipping block 440 to flip, realizing the automatic flipping and unloading action of the prestressed clamping pieces. This design achieves automated and precise control of the flipping action, improving the operating efficiency and reliability of the equipment.

[0027] Please see Figure 3 In one embodiment, preferably, it further includes a clip pusher box 460, which is disposed below the assembly box 430. The clip pusher box 460 includes a movable box 4601, and a second hydraulic cylinder 4602 is installed at the bottom of the movable box 4601. The second hydraulic cylinder 4602 is used to control the movable box 4601 to move. A receiving groove 4603 is formed on the movable box 4601, which is used to receive the wedge-shaped prestressed clips.

[0028] Specifically, a fiber optic through-beam sensor is installed on the moving box 4601 to detect whether the prestressed clip has fallen into the receiving groove 4603. The inner cavity shape of the receiving groove 4603 is adapted to the wedge-shaped structure formed by the combination of the two prestressed clips, which can ensure that the two clips fall accurately and stably into the groove when they fall from the assembly box 430, avoiding the assembly problem that the second clip cannot be put in smoothly due to the inaccurate positioning or high position of the first clip.

[0029] When the optical fiber pair sensor detects the presence of a pre-stressed clamp in the receiving groove 4603, the system sends a signal to drive the second hydraulic cylinder 4602 connected thereto to retract (the optical fiber pair sensor is electrically connected with the second hydraulic cylinder 4602, and the control principle is a prior art, which will not be described in detail here), the retraction of the second hydraulic cylinder 4602 drives the movement of the moving box 4601, causing the receiving groove 4603 to move, and finally reaching the top of the packaging structure 600, completing the automatic transfer of the pre-stressed clamp and preparing for the subsequent packaging process. This process realizes the automation and precise positioning of the clamp transfer.

[0030] A double-track conveying device includes a pre-stressed clamp turnover structure, and further includes a workbench 100 and a support frame 200 arranged on the workbench 100, the support frame 200 is respectively provided with a sorting platform 300 and a turnover structure 400, and the workbench 100 is respectively provided with a feeding structure 500 and a packaging structure 600. The workbench 100 provides support for the support frame 200, the feeding structure 500 and the packaging structure 600. In addition, the sorting platform 300 on the support frame 200 sends the pre-stressed clamp into the turnover structure 400, and after the adjustment of the pre-stressed clamp by the turnover structure 400, the pre-stressed clamp is sent into the packaging structure 600. The two pre-stressed clamps combined to form a wedge-shaped structure are limited by the rubber ring sent by the feeding structure 500, ensuring that the two pre-stressed clamps are closely attached together.

[0031] A conveying method of a pre-stressed clamp, which is realized by using a double-track conveying device, includes: S1: The clamps are conveyed one by one to the two clamp tracks 410 on the support frame 200 by the sorting platform 300, and the notch of the clamp faces downward during the conveying process; The sorting platform 300 can divide a plurality of clamps by quantity and input them into the two clamp tracks 410, ensuring that the number of clamps in the two clamp tracks 410 is consistent. Only one sorting platform 300 is needed to complete the feeding of the pre-stressed clamps, which does not occupy too much space.

[0032] S2: The clamps continue to be conveyed along the clamp tracks 410 and enter the L-shaped turnover groove 441 of the turnover block 440. By using the structural characteristics that one side of the clamp has no stress point, the clamp is turned over by 90 degrees around its axis under the guidance of the L-shaped turnover groove 441, so that the clamp is turned over from the notch facing downward to the notch facing sideways; When the clamps enter the L-shaped turnover groove 441 in turn, the subsequent clamps continue to advance and push the front clamps, prompting the front clamps to fall completely into the L-shaped turnover groove 441. When the clamps completely enter the L-shaped turnover groove 441, the clamp track 410 pauses the conveying to avoid clamping jam caused by continuous feeding. Since the clamps enter the L-shaped turnover groove 441 and one side is suspended and loses support, the clamps spontaneously turn over under the combined action of gravity and structural constraints, thereby realizing the directional conversion of the notch position.

[0033] S3: The whole turnover block 440 is driven by the driving member 450 to turn over by 90 degrees, so that the L-shaped turnover groove 441 originally in a horizontal state is converted into a vertical state, and the clamps slide from the L-shaped turnover groove 441 under the action of gravity and enter the assembly box 430 located below; S4: The two turned-over clamps are automatically combined to form a wedge-shaped structure in the assembly box 430 and fall into the clamp pushing box 460 located below the assembly box 430; S5: The clamps arranged in a wedge shape in the clamp pushing box 460 are pushed into the packaging structure 600 as a whole, so that the subsequent feeding structure 500 performs the rubber ring sleeving operation.

[0034] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0035] Therefore, the above description is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application; that is, various equivalent transformations made within the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A prestressed clamp flip structure, characterized in that, The application relates to a prestressed clamp overturning structure, which comprises the following parts: an overturning block, on which a driving element is arranged; an assembling box arranged below the overturning block; and two L-shaped overturning grooves symmetrically arranged on the overturning block, which are used for receiving prestressed clamps with downward gaps conveyed by clamp rail tracks, and when the prestressed clamps completely enter the L-shaped overturning grooves, the gaps of the two prestressed clamps are turned to be opposite to each other, and when the overturning block is overturned by 90 degrees by the driving element, the prestressed clamps fall into the assembling box below under the action of gravity. Further, a frame is arranged on the upper end face of the assembling box, and the inside of the frame is matched with the overturning block.

2. The prestressed clamped-flap inversion structure of claim 1, wherein The assembling box is a trapezoidal structure with through upper and lower end faces, the trapezoidal structure is symmetrically arranged along a vertical line in the center, a partition plate is arranged in the inside of the assembling box, the partition plate is close to the lower end face of the assembling box, and inclined plates are symmetrically arranged in the inside of the assembling box and inclined to one side of the partition plate from top to bottom.

3. The prestressed clamped-flap inversion structure of claim 1, wherein The driving element comprises a connecting block connected with the end of the overturning block, the other end of the connecting block is connected with the end of a first hydraulic cylinder, and the other end of the first hydraulic cylinder is connected with a fixing frame.

4. The prestressed clamped-flap inversion structure of claim 1, wherein Further, a clamp pushing box is arranged below the assembling box, the clamp pushing box comprises a moving box, a second hydraulic cylinder is arranged on the bottom of the moving box and used for controlling the moving box to move, and a receiving groove is formed on the moving box and used for receiving the prestressed clamps in a wedge shape.

5. The prestressed clamped-flap inversion structure of claim 1, wherein The prestressed clamp overturning structure comprises the prestressed clamp overturning structure of claim 5, and further comprises a workbench and a supporting frame arranged on the workbench, the supporting frame is respectively provided with a sorting platform and the prestressed clamp overturning structure, and the workbench is respectively provided with a feeding mechanism and a packaging disc.

6. A dual track conveying apparatus characterized by, The application is realized by using the double-track conveying equipment of claim 6, and comprises the following steps:

7. A method of transporting a prestressed clamp, characterized in that S1: the clamps are conveyed to the two clamp rail tracks on the supporting frame one by one through the sorting platform, and the gaps of the clamps are downward during the conveying process; S2: the clamps continue to be conveyed along the clamp rail tracks and enter the L-shaped overturning grooves of the overturning block, the clamps are overturned by 90 degrees around the axis by using the structure characteristics of the stress-free point on one side of the clamps and under the guidance of the L-shaped overturning grooves, so that the clamps are overturned from the state of the gaps downward to the state of the gaps being toward the side; S3: the overturning block is driven by the driving element to be overturned by 90 degrees as a whole, so that the L-shaped overturning grooves in the horizontal state are converted into the vertical state, and the clamps slide from the L-shaped overturning grooves and enter the assembling box below under the action of gravity; S4: the two overturned clamps are automatically combined into a wedge structure in the assembling box and fall into the clamp pushing box below the assembling box; S5: the clamps in the wedge shape in the clamp pushing box are pushed into the packaging disc by the hydraulic cylinder, so that the subsequent rubber ring sleeving operation is realized. ​

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