A prestressed clamp flip structure, double-track conveying device and method

Abstract

The application discloses a prestressed clamping piece overturning structure, a double-track conveying device and a method, which comprises the following steps: an overturning block is provided with a driving element; an assembling box is arranged below the overturning block; and two L-shaped overturning grooves are symmetrically arranged on the overturning block, the L-shaped overturning grooves are used for receiving the prestressed clamping pieces with downward gaps conveyed by a clamping piece track, when the prestressed clamping pieces completely enter the L-shaped overturning grooves, the gaps of the two prestressed clamping pieces are turned from downward to each other, and when the overturning block is turned from a horizontal state to a vertical state under the action of the driving element, the prestressed clamping pieces fall into the assembling box below under the action of gravity. The prestressed clamping piece overturning structure has the advantages of simple structure, automation and leanization of the whole process of clamping piece conveying, overturning and assembling, compact structure, low cost, high efficiency, stable operation, easy maintenance and the like, and meets the development requirement of modern intelligent manufacturing.

Description

Technical Field

[0001] This invention relates to the field of prestressed clamp conveying technology, specifically a prestressed clamp flipping structure, a double-track conveying device and method. Background Technology

[0002] Prestressed wedges, as key components of prestressed anchoring systems, 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 prestressing tendons (such as steel strands) are tensioned, ensuring the stability and safety of the structure. With the rapid development of infrastructure construction, the demand for prestressed wedges has increased dramatically, and traditional manual packaging methods can no longer meet the requirements of large-scale, high-quality production.

[0003] Currently, most companies still use manual methods for packaging sandwich panels. Limited by factors such as worker skill levels and physical fatigue, packaging speed is slow and efficiency is low. This can easily create production bottlenecks when facing large orders, affecting product delivery cycles. Furthermore, manual operation involves significant human variation; non-standard packaging can easily lead to the sandwich panels being bumped, loosened, or even damaged during transportation and storage, thus affecting their performance and posing potential quality risks.

[0004] Although some companies have introduced automated packaging equipment, existing technologies mostly adopt a "single-piece double-track clamping and feeding" packaging method, which uses two independent grippers to sequentially grab the clips from both sides and load them into the packaging station. This method has many drawbacks: First, the processes operate in series, and if any link fails (such as gripper malfunction or sensor misjudgment), the entire packaging process is forced to stop, resulting in low equipment utilization, long maintenance and troubleshooting time, and seriously affecting production continuity. Second, this structure requires two vibratory feeders for feeding, which not only occupies a large area and increases equipment purchase and maintenance costs, but also increases energy consumption and operating expenses. Third, during clip assembly, if the first clip is not positioned accurately or is too high, the second clip will not be able to be inserted smoothly, resulting in uneven heights or jamming between the two clips, affecting subsequent processes such as attaching rubber rings, leading to a high assembly failure rate and affecting the overall packaging yield. In addition, the above-mentioned automation solution has a complex process and relies on the coordinated work of multiple actuators (such as dual grippers and multiple sets of photoelectric sensors). The system has poor stability and is difficult to debug and maintain. Therefore, a prestressed clamp flipping structure, a dual-track conveying device and method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a prestressed clamp flipping structure, a dual-track conveying device and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prestressed clamp flipping structure, comprising:

[0007] A flipping block, on which a driving component is provided;

[0008] The assembly box is located below the flip block; and

[0009] Two L-shaped flip grooves are symmetrically arranged on the flip block. The L-shaped flip grooves are used to receive the prestressed clamps with the notches facing down, which are conveyed by the clamp track. When the prestressed clamps are fully inserted into the L-shaped flip grooves, the notches of the two prestressed clamps will change from facing down to facing each other. When the driving component drives the flip block to flip from a horizontal state to a vertical state, the prestressed clamps fall into the assembly box below under the action of gravity.

[0010] As a further aspect of the present invention, it further includes a frame disposed on the upper surface of the assembly box, and the interior of the frame is adapted to the flipping block.

[0011] As a further aspect of the present invention: the assembly box is a trapezoidal structure with its upper and lower ends connected. The trapezoidal structure is symmetrically arranged along its central vertical line. A partition is installed inside the assembly box. The partition is adjacent to the lower end of the assembly box. An inclined plate is symmetrically arranged inside the assembly box. The inclined plate is inclined from top to bottom toward one side of the partition.

[0012] As a further aspect of the present invention: the driving component includes a connecting block connected to the end of the flipping block, the other end of the connecting block being connected to the end of the first hydraulic cylinder, and the other end of the first hydraulic cylinder being connected to the fixing frame.

[0013] As a further aspect of the present invention: it further includes a clip pusher box, the clip pusher box being disposed below the assembly box, the clip pusher box including a movable box, the bottom of the movable box being equipped with a second hydraulic cylinder, the second hydraulic cylinder being used to control the movable box to move, the movable box having a receiving groove formed thereon, the receiving groove being used to receive the wedge-shaped prestressed clips.

[0014] A dual-track conveying device includes a prestressed clamp flipping structure, and further includes a workbench and a support frame disposed on the workbench. The support frame is respectively equipped with a sorting platform and the prestressed clamp flipping structure. The workbench is also respectively equipped with a feeding mechanism and a packaging tray.

[0015] A method for transporting prestressed wedges, implemented using the aforementioned dual-track transport equipment, includes:

[0016] S1: The clamping pieces are transported one by one to the two clamping piece tracks on the bracket through the sorting platform, and the notches of the clamping pieces face downwards during the transport process;

[0017] S2: The clamping piece continues to be conveyed along the clamping piece track and enters the L-shaped flipping groove of the flipping block. Utilizing the structural characteristic that there is no force point on one side of the clamping piece, the clamping piece is flipped 90 degrees around its axis under the guidance of the L-shaped flipping groove, so that the clamping piece flips from the notch-down state to the notch-side.

[0018] S3: The entire flipping block is rotated 90 degrees by the drive component, so that the L-shaped flipping groove, which was originally in a horizontal state, is converted into a vertical state. The clip slides out of the L-shaped flipping groove under the action of gravity and enters the assembly box located below.

[0019] S4: The two flipped clips automatically combine to form a wedge-shaped structure inside the assembly box and fall into the clip push box located below the assembly box;

[0020] S5: The hydraulic cylinder pushes the clip pusher box, pushing the wedge-shaped clips into the packaging tray for subsequent rubber ring application.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This application adopts a dual-clamp track synchronous conveying structure, which, compared with the existing technology of two clamps feeding materials independently in opposite directions, has higher conveying efficiency and operational stability, and is simpler in structure and easier to maintain. By requiring only one vibratory feeder for unified feeding, it not only reduces the number of equipment, lowers manufacturing costs and failure rates, but also significantly saves equipment space, improving the compactness of the production line layout and the utilization rate of the site.

[0023] In terms of clamp attitude adjustment, the L-shaped flip groove guide structure allows the clamp to automatically flip 90° without the intervention of an external drive device, relying on its own structural characteristics and gravity to complete the precise conversion of the notch from downward to side. No additional actuators are required, which simplifies the control logic and improves the flip reliability.

[0024] After being flipped, the clips fall into the assembly box. Through the double slide structure inside the assembly box, the two clips can automatically align and merge along the preset track to form a stable wedge-shaped combination structure, achieving efficient assembly with self-alignment and self-positioning. This effectively avoids the jamming problem that occurs when the first clip is not positioned accurately or is too high when inserting single clips in sequence, which prevents the second clip from being inserted smoothly. This significantly improves the assembly success rate and packaging yield.

[0025] In summary, this application achieves automation and lean manufacturing of the entire process of clamp conveying, flipping, and assembly, and has the advantages of compact structure, low cost, high efficiency, stable operation, and easy maintenance, which meet the development needs of modern intelligent manufacturing. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the overall structure of the dual-track conveying equipment of the present invention;

[0027] Figure 2 This is a schematic diagram of the flipping structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the combination of the flipping structure, feeding structure and packaging structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the interior of the assembly box of the present invention;

[0030] In the diagram: 100, workbench; 200, support frame; 300, sorting platform; 400, flipping structure; 410, clamping plate track; 420, frame; 430, assembly box; 431, partition; 432, inclined plate; 440, flipping block; 441, L-shaped flipping groove; 450, driving component; 4501, connecting block; 4502, first hydraulic cylinder; 4503, fixed frame; 460, clamping plate push box; 4601, moving box; 4602, second hydraulic cylinder; 4603, receiving groove; 500, feeding structure; 600, packaging structure. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-4 In this embodiment of the invention, a prestressed clip flipping structure includes:

[0033] A flip block 440 is provided with a drive component 450;

[0034] Assembly box 430 is positioned below flip block 440; and

[0035] Two L-shaped flip grooves 441 are symmetrically arranged on the flip block 440. The L-shaped flip grooves 441 are used to receive the prestressed clamps with the notches facing down, which are conveyed by the clamp track 410. When the prestressed clamps are fully inserted into the L-shaped flip grooves 441, the notches of the two prestressed clamps will change from facing down to facing each other. When the driving member 450 drives the flip block 440 to flip from the horizontal state to the vertical state, the prestressed clamps fall into the assembly box 430 below under the action of gravity.

[0036] Specifically, there are two clamping track 410s, which are set in parallel and both convey prestressed clamping pieces with the notch facing downward. One end of the clamping track 410 is connected to the sorting platform 300 and the other end is connected to the flipping block 440, which is used to convey the prestressed clamping pieces from the sorting platform 300 to the flipping block 440.

[0037] The frame 420 is located on the upper surface of the assembly box 430. The two are connected to each other and internally connected. The flipping block 440 is located inside the frame 420 and forms a rotatable connection with the frame 420. Therefore, the flipping action of the flipping block 440 is not restricted by the frame 420. The L-shaped flipping groove 441 is composed of a first cavity and a second cavity that are interconnected. The side wall of the second cavity is arc-shaped, which is conducive to the smooth flipping of the prestressed clip and avoids jamming during the flipping process.

[0038] During operation, the sorting platform 300 feeds the prestressed wedges into the two wedge tracks 410 and transports them along the tracks to the first cavity of the L-shaped flipping groove 441. Since one end of the prestressed wedge is suspended and loses support, it automatically flips under the action of gravity, so that the notch changes from facing downwards to facing upwards. While completing the posture adjustment, it enters the second cavity. Subsequently, the drive component 450 drives the flipping block 440 to rotate within the frame 420, so that the opening of the second cavity flips from a horizontal state to a vertical downwards. At this time, the small ends of the two prestressed wedges face downwards and fall into the assembly box 430 along the frame 420 under the action of gravity, automatically combining to form a wedge-shaped structure, completing the initial automatic assembly of the prestressed wedges, which facilitates subsequent simultaneous assembly.

[0039] Please see Figure 4 In one embodiment, preferably, the assembly box 430 is a trapezoidal structure with its upper and lower ends connected. The trapezoidal structure is symmetrically arranged along its central vertical line. A partition 431 is installed inside the assembly box 430. The partition 431 is adjacent to the lower end of the assembly box 430. An inclined plate 432 is symmetrically arranged inside the assembly box 430. The inclined plate 432 is inclined from top to bottom toward one side of the partition 431.

[0040] Specifically, the assembly box 430 is fixedly installed on the support frame 200. Inside, there are two inclined plates 432 forming two channels, each located directly below a corresponding L-shaped tilting groove 441. Prestressed wedges falling through the L-shaped tilting grooves 441 can smoothly enter their respective channels and, guided by the channels, gradually move inward until they contact the surface of the partition plate 431 in the middle. At this point, the two prestressed wedges abut against the sides of the partition plate 431, separated only by the partition plate 431, thus completing the positioning and alignment of the two prestressed wedges and enabling them to automatically assemble into a wedge-shaped structure.

[0041] Please see Figure 3In one embodiment, preferably, the drive member 450 includes a connecting block 4501 connected to the end of the flipping block 440, the other end of the connecting block 4501 being connected to the end of the first hydraulic cylinder 4502, and the other end of the first hydraulic cylinder 4502 being connected to the fixing frame 4503.

[0042] Specifically, the bottom of the fixing frame 4503 is fixed to the support frame 200 by bolts 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, which is connected to the end of the flipping block 440 that protrudes from the frame 420.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] When the fiber optic through-beam sensor detects the presence of a prestressed clip in the receiving slot 4603, the system sends a signal to drive the connected second hydraulic cylinder 4602 to retract (the fiber optic through-beam sensor and the second hydraulic cylinder 4602 are electrically connected, and their control principle is existing technology, which will not be elaborated here). The retraction of the second hydraulic cylinder 4602 drives the moving box 4601 to move, causing the receiving slot 4603 to move to the top of the packaging structure 600, completing the automatic transfer of the prestressed clip and preparing it for subsequent packaging processes. This process realizes the automation and precise positioning of the clip transfer.

[0048] A dual-track conveying device includes a prestressed clamp tipping structure, and further includes a workbench 100 and a support frame 200 mounted on the workbench 100. A sorting platform 300 and a tipping structure 400 are respectively installed on the support frame 200. A feeding structure 500 and a packaging structure 600 are also respectively installed on the workbench 100. 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 feeds the prestressed clamps into the tipping structure 400. After the tipping structure 400 adjusts the prestressed clamps, they are fed into the packaging structure 600. Then, the feeding structure 500 feeds in a rubber ring to restrict the two prestressed clamps that combine to form a wedge-shaped structure, ensuring that the two prestressed clamps are tightly fitted together.

[0049] A method for transporting prestressed wedges, implemented using a dual-track transport device, includes:

[0050] S1: The clamping pieces are conveyed one by one to the two clamping piece tracks 410 on the support frame 200 through the sorting platform 300, and the notches of the clamping pieces face downwards during the conveying process;

[0051] The sorting platform 300 can evenly distribute multiple clamping pieces and input them into two clamping piece tracks 410, ensuring that the number of clamping pieces in the two clamping piece tracks 410 is consistent. Only one sorting platform 300 is needed to complete the feeding of prestressed clamping pieces, without occupying too much space.

[0052] S2: The clip continues to be conveyed along the clip track 410 and enters the L-shaped flip groove 441 of the flip block 440. Utilizing the structural characteristic that there is no force point on one side of the clip, the clip is flipped 90 degrees around its axis under the guidance of the L-shaped flip groove 441, so that the clip is flipped from the notch-down state to the notch-side.

[0053] As the clamping pieces enter the L-shaped tilting groove 441 sequentially, the subsequent clamping pieces continue to advance and push against the clamping pieces in front, causing the clamping pieces in front to fall completely into the L-shaped tilting groove 441. Once the clamping pieces are completely inside the L-shaped tilting groove 441, the clamping piece track 410 stops conveying to avoid clamping pieces getting stuck due to continuous feeding. Because one side of the clamping piece is suspended and unsupported after entering the L-shaped tilting groove 441, it spontaneously tilts under the combined action of gravity and structural constraints, thereby achieving the directional change of the notch position.

[0054] S3: Drive the flipping block 440 to rotate 90 degrees by the drive component 450, so that the L-shaped flipping groove 441, which was originally in a horizontal state, is converted into a vertical state. The clip slides out of the L-shaped flipping groove 441 under the action of gravity and enters the assembly box 430 located below.

[0055] S4: The two flipped clips automatically combine to form a wedge structure in the assembly box 430 and fall into the clip push box 460 located below the assembly box 430.

[0056] S5: The wedge-shaped clips are pushed into the packaging structure 600 by the clip pusher box 460 so that the subsequent feeding structure 500 can perform the rubber ring fitting operation.

[0057] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0058] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A prestressed clamp flipping structure, characterized in that, include: The sorting platform is used to feed the prestressed wedges into two parallel wedge tracks. One end of the two wedge tracks is connected to the sorting platform to transport the prestressed wedges with the notches facing down. A flipping block has two symmetrically arranged L-shaped flipping slots connected to a driving component. Each L-shaped flipping slot includes a first cavity and a second cavity connected in sequence. The other ends of the two clamping plate tracks are respectively connected to the first cavities of the two L-shaped flipping slots, so that after the prestressed clamping plates enter the first cavity, they flip under the action of gravity because one end is suspended and loses support, so that the notches of the two prestressed clamping plates change from facing downwards to facing each other, and enter the second cavity. The driving component is used to drive the flipping block to rotate, so that the opening of the second cavity flips from a horizontal state to a vertical downwards, so that the small ends of the two prestressed clamping plates face downwards and fall into the assembly box below. The assembly box is located below the flipping block and is used to receive the falling prestressed clamping plates. A clamping piece pusher box is disposed below the assembly box. The clamping piece pusher box includes a movable box. A second hydraulic cylinder is installed at the bottom of the movable box. The second hydraulic cylinder is used to control the movable box to move. A receiving groove is formed on the movable box. The receiving groove is used to receive the assembled prestressed clamping pieces.

2. The prestressed clamp flipping structure according to claim 1, characterized in that, It further includes a frame disposed on the upper surface of the assembly box, and the interior of the frame is adapted to the flip block.

3. The prestressed clamp flipping structure according to claim 1, characterized in that, The assembly box is a trapezoidal structure with its upper and lower ends connected. The trapezoidal structure is symmetrically arranged along its central vertical line. A partition is installed inside the assembly box. The partition is adjacent to the lower end of the assembly box. Inclined plates are symmetrically arranged inside the assembly box. The inclined plates are inclined from top to bottom toward one side of the partition.

4. The prestressed clamp flipping structure according to claim 1, characterized in that, The driving component includes a connecting block connected to one end of the flipping block, the other end of the connecting block being connected to one end of a first hydraulic cylinder, and the other end of the first hydraulic cylinder being connected to a fixed frame.

5. A dual-track conveying device, characterized in that, The device includes the prestressed clamp flipping structure as described in claim 4, and further includes a workbench and a support frame disposed on the workbench. The support frame is respectively equipped with a sorting platform and the prestressed clamp flipping structure. The workbench is also respectively equipped with a feeding mechanism and a packaging tray.

6. A method for transporting prestressed wedges, characterized in that, The application of the dual-track conveying equipment as described in claim 5 includes: S1: The clamping pieces are transported one by one to the two clamping piece tracks on the bracket through the sorting platform, and the notches of the clamping pieces face downwards during the transport process; S2: The clamping piece continues to be conveyed along the clamping piece track and enters the L-shaped flipping groove of the flipping block. Utilizing the structural characteristic that there is no force point on one side of the clamping piece, the clamping piece is flipped 90 degrees around its axis under the guidance of the L-shaped flipping groove, so that the clamping piece flips from the notch-down state to the notch-side. S3: The entire flipping block is rotated 90 degrees by the drive component, so that the L-shaped flipping groove, which was originally in a horizontal state, is converted into a vertical state. The clip slides out of the L-shaped flipping groove under the action of gravity and enters the assembly box located below. S4: The two flipped clips automatically combine to form a wedge-shaped structure inside the assembly box and fall into the clip push box located below the assembly box; S5: The hydraulic cylinder pushes the clip pusher box, pushing the wedge-shaped clips into the packaging tray for subsequent rubber ring application.

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