Frame appliqué and preloaded ring conveyor for a two-wheeled vehicle

Abstract

The application relates to the technical field of frame decal production lines, and discloses a frame decal and pre-mounted annular conveying device for a two-wheeled vehicle, which comprises a supporting frame, a limiting mechanism and a hoisting mechanism. The limiting mechanism is arranged on the supporting frame. The hoisting mechanism is arranged in the limiting mechanism and is used for hoisting the frame and moving under the traction of a driving source included in the supporting frame. The original frame resting on the ground is hoisted by the hoisting mechanism, the height of the frame is adjusted after hoisting, so that manual work is not required to process the frame by squatting, and the labor load is avoided. The hoisting mechanism can move under the traction of the driving source in the limiting mechanism, the design does not require manual carrying of the frame, the positioning requirement is guaranteed to a certain extent, and the frame does not need to be turned over.

Description

Technical Field

[0001] This invention relates to the field of vehicle frame decal production line technology, specifically to a ring conveyor device for vehicle frame decals and pre-assembly of two-wheeled vehicles. Background Technology

[0002] Currently, decal processing for two-wheeled vehicle frames mostly employs a traditional manual operation method with the frame simply placed on the ground. During processing, the frame is merely placed on the ground without dedicated limiting or stable support structures. This makes the frame prone to shifting and shaking during decal pressing and alignment, compromising the alignment accuracy of the decal pattern and resulting in poor product consistency. Furthermore, this method lacks a continuous conveyor system; frame transfer, flipping, and loading / unloading all rely on manual handling, leading to interruptions and bottlenecks in process connections. The scattered stacking of workpieces also results in low space utilization, significantly limiting the increase in batch processing capacity. Moreover, workers must squat for extended periods to perform decal operations, resulting in high labor loads and potential physical injuries from prolonged work. The existing processing model struggles to balance production efficiency, product quality, and worker comfort.

[0003] The few existing simple conveyor-type frame processing equipment only have basic workpiece conveying functions and lack an integrated limiting and hoisting structure adapted to two-wheeled vehicle frames. Without a reliable limiting and straightening structure during frame conveying, the workpiece stability is insufficient during decal application. It is also impossible to achieve automated reversal to complete double-sided decal processing with the help of the conveyor line. Additional manual assistance is still required to flip the frame and fix it in place. The equipment fails to simultaneously address the comprehensive needs of frame conveying and movement, full-process limiting and stable hoisting, and continuous processing at the structural level. The industry still lacks a dedicated ring conveyor device that can integrate frame hoisting and limiting, and closed-loop continuous conveying, which restricts the automation and standardization of the two-wheeled vehicle frame decal process. Summary of the Invention

[0004] The purpose of this invention is to provide a frame decal and pre-installed ring conveyor for two-wheeled vehicles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a ring-shaped conveying device for frame decals and pre-assembly of two-wheeled vehicles, comprising: Support frame; A limiting mechanism is provided on the support frame; A hoisting mechanism is provided in the limiting mechanism. The hoisting mechanism is used to hoist the vehicle frame and is moved by a drive source included in the support frame within the limiting mechanism.

[0006] In some embodiments, the limiting mechanism includes a mounting base disposed on the support frame, with an extension and a limiting member on one side of the mounting base. The extension is used to lock and unlock the hoisting mechanism, and the limiting member is used to connect to the hoisting mechanism.

[0007] In some embodiments, there are four limiting members, arranged in pairs, with each pair of limiting members arranged in a mirror image. The two limiting members have a first guide groove and a second guide groove respectively on their opposite sides. The first guide groove is used to pull the hoisting mechanism, and the second guide groove is used to limit and fix the hoisting mechanism.

[0008] In some embodiments, the first guide groove includes two opposing bent grooves and two parallel straight grooves. All of the aforementioned bent grooves and all of the aforementioned straight grooves form a loop; The second guide groove is provided only on the limiting member at the bottom of the straight groove, and a guide plate is provided at the end of the second guide groove. The guide plate is used to guide the hoisting mechanism into the second guide groove.

[0009] In some embodiments, the hoisting mechanism includes a first traction wheel located in the first guide groove and a second traction wheel located in the second guide groove; The first traction wheel and the second traction wheel are connected by a connecting rod.

[0010] In some embodiments, the connecting rod is further provided with a locking device and a gear disk, the locking device being used to lock the gear disk; One end of the locking device is connected to the connecting rod by a rotating shaft; The gear disk is mounted on the connecting rod, and the connecting rod is connected to the center of the gear disk. The gear disk can rotate on the connecting rod with the center as the center.

[0011] In some embodiments, the extension is provided with a lifting member; The lifting member is connected to a fixing member provided on the extension member.

[0012] In some embodiments, a pulley is provided at the outer end of the locking device, the pulley being used to contact the lifting member and lift the locking device; The locking device is provided with a pin, which is used to fix the gear disk; The gear disk has a slot adapted to the size of the pin.

[0013] In some embodiments, a rotating plate is provided on the second guide groove, and the rotating plate meshes with the gear disk; The gear disk and the rotating plate are in contact, and the gear disk meshes and rotates, changing the orientation of the frame.

[0014] In some embodiments, a lifting component is provided at one end of the connecting rod, and the lifting component can rotate synchronously with the rotation of the gear disk; One side of the lifting component is provided with an installation component, which is used to connect to the vehicle frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The annular conveying device for decal and pre-installation on the frame of a two-wheeled vehicle includes a support frame, a limiting mechanism, and a lifting mechanism. The limiting mechanism is located on the support frame. The lifting mechanism is located within the limiting mechanism and is used to lift the frame. Within the limiting mechanism, the frame is moved by a drive source included in the support frame. This design allows the frame, which was originally placed on the ground, to be lifted by the lifting mechanism. After lifting, the height of the frame is adjusted, thus eliminating the need for manual processing of the frame by crouching down. This avoids excessive labor load. Furthermore, the lifting mechanism can be moved by a drive source within the limiting mechanism, eliminating the need for manual handling of the frame. Positioning requirements are also guaranteed to a certain extent, and there is no need to flip the frame. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the support frame structure of the present invention; Figure 2 This is a schematic diagram of the working state of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the limiting mechanism structure of the present invention; Figure 5 This is a schematic diagram of the hoisting mechanism structure of the present invention; Figure 6 This is a partial top view schematic diagram of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 For the present invention Figure 6 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram showing the changing states of the hoisting mechanism of the present invention.

[0017] In the diagram: 1. Support frame; 11. Suspension beam; 12. Mounting frame; 13. Lighting equipment; 14. Drive source; 2. Limiting mechanism; 21. Mounting seat; 22. Extension; 221. Fixing component; 222. Lifting component; 23. Limiting component; 24. First guide groove; 241. Bending groove; 242. Straight groove; 25. Second guide groove; 26. Rotating plate; 27. Guide plate; 3. Lifting mechanism; 31. First traction wheel; 32. Connecting rod; 33. Second traction wheel; 34. Locking device; 341. Pulley; 342. Pin component; 35. Gear disk; 36. Lifting component; 37. Mounting component; 4. Frame. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-9 This invention provides a technical solution: a ring-shaped conveying device for decal application and pre-assembly of two-wheeled vehicle frames, comprising: a support frame 1, a limiting mechanism 2, and a lifting mechanism 3. The limiting mechanism 2 is mounted on the support frame 1. The lifting mechanism 3 is located within the limiting mechanism 2 and is used to lift the frame 4. Within the limiting mechanism 2, the frame 4 is pulled and moved by a drive source 14 included in the support frame 1. This design allows the frame 4, originally placed on the ground, to be lifted by the lifting mechanism 3. After lifting, the height of the frame 4 is adjusted, eliminating the need for manual processing of the frame 4 by workers who would otherwise be crouching down. This avoids excessive labor load. Furthermore, the lifting mechanism 3 can be pulled and moved by the drive source 14 within the limiting mechanism 2, eliminating the need for manual handling of the frame 4. Positioning requirements are also guaranteed, and there is no need to flip the frame 4.

[0020] The hoisting mechanism 3 and the limiting mechanism 2 form an integrated constraint structure. After the entire frame 4 is hoisted and limited, it can maintain its locked posture throughout the entire process of conveying and moving and manually pressing the decals, eliminating the problem of workpiece force deviation and shaking. From the hardware structure level, it continuously ensures the decal alignment accuracy and improves the defects of skewed and inconsistent finished patterns in traditional operations.

[0021] The drive source 14 mounted on the support frame 1 can simultaneously drive multiple sets of hoisting mechanisms 3 to move synchronously and orderly along the circular path. The entire device relies on the support frame 1 to form a closed-loop continuous flow channel. The frame 4 can complete the entire process of single-sided processing, automatic reversal, and processing of the other side on the line. There is no need to remove the workpiece in the middle between processes, realizing continuous and uninterrupted operation of the entire decal process, and simultaneously improving the problem of wasted space caused by the scattered placement of workpieces.

[0022] A suspension beam 11 is mounted on the support frame 1, and a mounting bracket 12 for supporting the suspension beam 11 is provided on the suspension beam 11. The mounting bracket 12 is connected by welding and is in the shape of an inverted triangle to enhance the traction resistance of the suspension beam 11. A lighting device 13 is provided on the mounting bracket 12, and the lighting device 13 is oriented at the height of the vehicle frame 4 to improve the brightness of the working environment for the staff.

[0023] The drive source 14 is mounted on the suspension beam 11, and a traction belt is connected to the drive source 14. The lifting mechanism 3 is used to move the frame 4 within the limiting mechanism 2 by means of the traction belt. This eliminates the need for manual handling of the frame 4, thereby improving the efficiency of applying decals to the frame 4.

[0024] The inverted triangular mounting bracket 12 is securely welded to the underside of the cantilever beam 11. Utilizing the inherent mechanical properties of the triangular structure, it shares the traction load borne by the cantilever beam 11, strengthening the overall structural strength of the cantilever beam 11 and preventing deformation during long-term cyclic traction operations of multiple lifting mechanisms 3. This ensures the structural stability of the entire conveyor system during long-term operation. The lighting equipment 13 mounted on the mounting bracket 12 is precisely aligned with the lifting height of the chassis 4, eliminating visual shadows around the workpiece from all angles, avoiding alignment deviations and decal defects caused by insufficient light, and further improving the quality of the decal-processed finished product.

[0025] The drive source 14 is integrated on the suspension beam 11 and equipped with a traction belt to complete the power transmission. All hoisting mechanisms 3 rely on the traction belt to drive them to move smoothly along the limit mechanism 2. Multiple frames 4 can be processed synchronously and orderly, eliminating the process waiting interval caused by manual back-and-forth transfer of workpieces. On the basis of eliminating manual handling process, the processing cycle of complete decals on a single frame 4 is further shortened, and the efficiency of batch production operation is continuously improved.

[0026] The limiting mechanism 2 includes a mounting base 21 mounted on the support frame 1, which is disposed on the suspension beam 11. An extension 22 and a limiting member 23 are provided on one side of the mounting base 21. The extension 22 is used to lock and unlock the lifting mechanism 3. The extension 22 not only locks and unlocks the lifting mechanism 3 but also locks it, stabilizing the lifting of the frame 4 by the lifting mechanism 3 and preventing the frame 4 from tipping over during processing. The limiting member 23 is used to connect the lifting mechanism 3.

[0027] The mounting base 21 of the limiting mechanism 2 is assembled and fixed by relying on the suspension beam 11, thereby realizing the integration of the limiting mechanism 2 and the main structure of the support frame 1, so that the limiting guide structure and the power traction structure of the hoisting mechanism 3 are on the same bearing benchmark, avoiding the generation of assembly misalignment gaps during transportation.

[0028] The mounting base 21 is equipped with an extension 22 and a limiting component 23 on its side. The limiting component 23 enables the lifting mechanism 3 to fit snugly against the mounting base 21, limiting the lateral offset range of the lifting mechanism 3. The extension 22 has a two-way locking function, which can lock the lifting mechanism 3 during operation, firmly restraining the lifting posture of the frame 4, preventing the frame 4 from flipping and shaking randomly during the decal pressing operation, and ensuring that the workpiece processing posture remains uniform. During the loading and unloading process, the extension 22 can be released from its locking state, making it convenient for operators to quickly disassemble and assemble the frame 4, taking into account both processing stability and ease of loading and unloading operations.

[0029] There are four limiting members 23, arranged in pairs. Each pair of limiting members 23 is arranged in a mirror image. A first guide groove 24 and a second guide groove 25 are respectively formed on the opposite side of each pair of limiting members 23. Since there are four limiting members 23, there are two first guide grooves 24 and two second guide grooves 25. The first guide groove 24 is used to pull the hoisting mechanism 3, ensuring that the hoisting mechanism 3 is always hooked to the first guide groove 24. The second guide groove 25 is used to limit and fix the hoisting mechanism 3. Sliding grooves are formed at the bottom of the first guide groove 24 and the second guide groove 25, and the size of the sliding grooves matches the size of the connecting rod 32 included in the hoisting mechanism 3. This ensures that the hoisting mechanism 3 remains as a whole and can move synchronously within the first guide groove 24 and the second guide groove 25.

[0030] The four limiting components 23 are grouped in pairs and arranged in a mirror image. The two groups of limiting components 23 cooperate with each other to form a double-layer guide constraint channel. The first guide groove 24 and the second guide groove 25 are respectively opened to realize the traction and static limiting of the hoisting mechanism 3. The two types of grooves perform their respective functions and do not interfere with each other, which not only ensures the continuous traction during the conveying process, but also restricts the lateral displacement of the hoisting mechanism 3 during the processing at the work station.

[0031] The bottom of the first guide groove 24 and the second guide groove 25 are provided with a sliding groove structure that adapts to the shape of the connecting rod 32. The connecting rod 32 is simultaneously fitted into the two sliding grooves and slides, so that the entire hoisting mechanism 3 is fully covered and constrained by the groove body. During the movement, there will be no tilting or derailment. This ensures that the moving posture of all hoisting mechanisms 3 is uniform, and the positioning consistency of the entire process of conveying and applying the veneer on the frame 4 is further enhanced.

[0032] The first guide groove 24 includes two opposing bent grooves 241 and two parallel straight grooves 242. All the bent grooves 241 and all the straight grooves 242 form a loop, which is racetrack shaped. This allows the lifting mechanism 3 to simultaneously engage in the second guide groove 25 for stability when moving within the straight groove 242, facilitating the appliqué application on the frame 4. The lifting mechanism 3 operates in the bent groove 241 phase, which is the turning stage. The second guide groove 25 is only provided on the limiting member 23 at the bottom of the straight groove 242, and a guide plate 27 is provided at the end of the second guide groove 25. The guide plate 27 guides the lifting mechanism 3 to move accurately into the second guide groove 25 after disengaging from the bent groove 241 phase.

[0033] The first guide groove 24 is formed by splicing together a pair of opposing bent grooves 241 and parallel straight grooves 242 to form a complete racetrack-shaped closed loop. The bent grooves 241 are specifically for the turning sections of the conveyor line, allowing the hoisting mechanism 3 to complete the turning flow. Only the limiting member 23 corresponding to the straight groove 242 is equipped with the second guide groove 25 to realize exclusive double limiting of the straight processing section and distinguish the constraint standards of the flow turning process and the decal operation process.

[0034] The second guide groove 25 is integrally equipped with a guide plate 27. After the hoisting mechanism 3 completes the turn through the bending groove 241, it is smoothly guided into the second guide groove 25 by the transition guidance of the guide plate 27. This avoids the hoisting mechanism 3 from getting stuck, misaligned, or dislodging after the turn is completed. It ensures that the hoisting mechanism 3 can quickly and synchronously embed into the double groove constraint after turning into the straight position, so that the frame 4 can immediately obtain stable limiting support when it enters the decal process.

[0035] The lifting mechanism 3 includes a first traction wheel 31 located in a first guide groove 24 and a second traction wheel 33 located in a second guide groove 25. The first traction wheel 31 can be pulled by a traction belt and a drive source 14 in the first guide groove 24, causing the entire lifting mechanism 3 to move within the first guide groove 24. The second traction wheel 33 is used to stabilize the lifting mechanism 3 when it enters the second guide groove 25. The first traction wheel 31 and the second traction wheel 33 are connected by a connecting rod 32, a design that integrates the first traction wheel 31 and the second traction wheel 33 into a single unit.

[0036] The hoisting mechanism 3 uses the connecting rod 32 to rigidly connect the first traction wheel 31 and the second traction wheel 33 into an integrated linkage component. The positions of the two traction wheels correspond to each other and match the double-layer track structure of the first guide groove 24 and the second guide groove 25, so that the two wheels will not be misaligned or separated, ensuring that the conveying and limiting actions are synchronized.

[0037] When the drive source 14, in conjunction with the traction belt, drives the first traction wheel 31 to travel cyclically along the runway-shaped first guide groove 24, the second traction wheel 33 in the straight processing section is simultaneously embedded in the second guide groove 25 to form an auxiliary support limit. The double rollers cooperate with the corresponding grooves to constrain the lifting mechanism 3. While the vehicle is being driven by power, the lateral force caused by manual decal pressing is offset, further preventing the lifting mechanism 3 from shifting or shaking, and continuously maintaining the stable positioning of the frame 4 during decal processing.

[0038] The connecting rod 32 is also equipped with a locking device 34 and a gear disk 35. The locking device 34 is used to lock the gear disk 35 to ensure the stability of the frame 4 during processing. One end of the locking device 34 is connected to the connecting rod 32 by a rotating shaft, allowing the locking device 34 to rotate around the rotating shaft. The gear disk 35 is located on the connecting rod 32, and the connecting rod 32 is connected to the center of the gear disk 35, allowing the gear disk 35 to rotate around its center on the connecting rod 32. This rotation can be locked by the locking device 34.

[0039] The second guide groove 25 is equipped with a rotating plate 26. The rotating plate 26 has serrations on the side near the gear disk 35, and these serrations mesh with the gear disk 35. The gear disk 35 contacts the rotating plate 26, and the gear disk 35 rotates, thereby changing the orientation of the frame 4. This allows the frame 4 to face the operator from both sides, enabling automatic tilting of the frame 4. This eliminates the need for manual tilting of the frame 4, improving work efficiency.

[0040] The connecting rod 32 is coaxially mounted with the gear disk 35, which can rotate freely around the center of the connecting rod 32, thereby driving the frame 4 held by the hoisting mechanism 3 to adjust its orientation synchronously. The locking device 34 is hinged to the connecting rod 32 through a rotating shaft and can rotate around the rotating shaft to complete the opening and closing action. When the frame 4 is adjusted to a suitable processing angle, the locking device 34 can engage the limiting gear disk 35, lock the rotational freedom of the gear disk 35, prevent the frame 4 from deflecting on its own during the decal application process, and continuously maintain the fixed posture of the workpiece.

[0041] The second guide groove 25 is equipped with a rotating plate 26 with a serrated structure. When the hoisting mechanism 3 enters the straight processing section, the gear disk 35 and the serrated teeth of the rotating plate 26 mesh with each other. The power of the groove is converted into the rotational torque of the gear disk 35, which automatically drives the frame 4 to complete the angle reversal, so that the front and back sides of the frame 4 can face the operator in turn. The entire meshing and reversing structure is integrated inside the limit rail, eliminating the need for manual flipping and lifting of the frame 4, reducing the process interruption caused by flipping operations, and simultaneously simplifying the double-sided decal application process.

[0042] The extension 22 is equipped with a lifting member 222. The lifting member 222 is connected to a fixing member 221 on the extension 22. When the hoisting mechanism 3 moves in the second guide groove 25, the locking device 34 contacts the lifting member 222 and rotates away from the gear disk 35, thereby unlocking the gear disk 35. Both ends of the lifting member 222 are equipped with inclined guide plates, which are used to guide and lift the locking device 34 to unlock the gear disk 35.

[0043] A pulley 341 is provided at the outer end of the locking device 34. The pulley 341 is used to contact the lifting member 222 and reduces friction between the locking device 34 and the lifting member 222. The locking device 34 is then lifted. A pin 342 is provided on the locking device 34 to fix the gear disk 35. A slot adapted to the size of the pin 342 is provided on the gear disk 35. When the locking device 34 is lifted through the contact between the pulley 341 and the lifting member 222, the pin 342 on the locking device 34 disengages from the gear disk 35, allowing the gear disk 35 to contact the rotating plate 26 and rotate.

[0044] The extension 22 is assembled with the lifting component 222 via the fixing component 221. The lifting component 222 is equipped with inclined guide plates at both ends, which can form a smooth transition contact surface. During the movement of the hoisting mechanism 3 along the second guide groove 25, the pulley 341 at the end of the locking device 34 first slides against the guide plate. The pulley 341 can reduce the friction loss caused by the relative sliding between the two, so that the locking device 34 is smoothly lifted along the inclined surface of the guide plate and the whole rotates around the hinge axis away from the gear disk 35.

[0045] During the lifting process of the locking device 34, its built-in pin 342 simultaneously disengages from the corresponding slot of the gear disk 35, releasing the locking constraint on the gear disk 35. The gear disk 35 regains its rotational freedom and can engage with the serrated teeth of the rotating plate 26 in the second guide groove 25. Relying on the conveying and traveling power, the frame 4 is automatically reversed and flipped. The unlocking structure is automatically triggered as the hoisting mechanism 3 moves, without the need for manual operation of the unlocking parts. The reversing process can be completed synchronously with the conveying flow, further simplifying the continuous operation process of double-sided decal application.

[0046] A lifting member 36 is provided at one end of the connecting rod 32. The lifting member 36 can rotate synchronously with the rotation of the gear disk 35. A mounting member 37 is provided on one side of the lifting member 36. The mounting member 37 is used to connect with the frame 4.

[0047] The lifting component 36 assembled at the end of the connecting rod 32 forms a synchronous linkage structure with the gear disk 35. The lifting component 36 and the gear disk 35 are welded together to form an integral unit. When the gear disk 35 is driven to rotate by the meshing of the rotating plate 26, the lifting component 36 can adjust its deflection angle accordingly to ensure that the clamped frame 4 and the gear disk 35 rotate completely synchronously, thus avoiding angular misalignment of the frame 4.

[0048] An installation component 37 is set on the outside of the lifting component 36 as a dedicated connecting carrier for the frame 4. The frame 4 and the lifting component 36 are stably connected by the installation component 37. The rotational torque generated by the gear disk 35 can be completely transmitted to the frame 4, so that the frame 4 automatically switches the processing surface as it moves along the track. There is no need for additional manual adjustment of the clamping posture of the frame 4, ensuring that the double-sided decal process can be carried out continuously and smoothly.

[0049] When used for decal application on two-wheeled vehicles and in the pre-installed circular conveyor system, the entire system relies on the drive source 14 mounted on the suspension beam 11 of the support frame 1 to output power, which in turn drives the entire hoisting mechanism 3 to continuously circulate along the racetrack-shaped closed loop track via a traction belt. The inverted triangular welded mounting frame 12 shares the load generated by the long-term traction of the suspension beam 11, ensuring the stability of the overall load-bearing structure. The lighting equipment 13 on the mounting frame 12, positioned towards the hoisting height of the frame 4, continuously eliminates shadows during operation, providing sufficient light for decal alignment.

[0050] During operation, the operator fixes the frame 4 to the lifting component 36 using the mounting component 37. The lifting mechanism 3 then lifts the frame 4 as a whole, allowing the operator to stand upright and complete the decal application without having to crouch. The first traction wheel 31 of the lifting mechanism 3 is driven forward along the first guide groove 24 by the traction belt. The connecting rod 32 connects the first traction wheel 31 and the second traction wheel 33 into one unit. In the straight processing section, the second traction wheel 33 is simultaneously embedded into the second guide groove 25. The double-layer grooves work together to provide all-round constraint to the lifting mechanism 3, preventing the frame 4 from shifting or shaking during the decal application process.

[0051] When the hoisting mechanism 3 passes through the turning area of ​​the line, it completes the turning along the bending groove 241. After reaching the end of the straight processing section, it smoothly slides into the second guide groove 25 under the guidance of the guide plate 27. During the movement, the pulley 341 at the end of the locking device 34 contacts the lifting member 222 with the inclined guide plate on the extension 22. The pulley 341 reduces the sliding friction, and the guide plate pushes up the locking device 34 to make it rotate around the pivot. The pin 342 disengages from the slot of the gear disk 35, and the locking state of the gear disk 35 is released.

[0052] After unlocking, the gear disk 35 continuously meshes with the serrated rotating plate 26 inside the second guide groove 25. Driven by the forward propulsion of the hoisting mechanism 3, the gear disk 35 rotates autonomously. The hoisting component 36, synchronously linked with the gear disk 35, drives the frame 4 to rotate and reverse, automatically turning the other machining surface of the frame 4 towards the operator, thus completing the automatic switch from single-sided to double-sided machining. After the frame 4 completes the reversal and stabilizes at the machining angle, the locking device 34 disengages from the lifting component 222 and automatically falls back down. The pin 342 then re-engages into the slot of the gear disk 35, locking the gear disk 35 from rotating. Throughout the machining process, the frame 4 remains in a fixed position.

[0053] The limiting mechanism 2 is integrated and assembled onto the suspension beam 11 via the mounting base 21. The four limiting components 23 are grouped in pairs to form a double-layer guide channel. The extension component 22 has both locking and unlocking functions. During the processing stage, the lifting mechanism 3 is locked to prevent the frame 4 from accidentally overturning. During the loading and unloading stage, the locking is released to facilitate the disassembly and assembly of workpieces. The entire set of equipment forms a seamless closed-loop flow process. The entire process of loading, single-sided decal application, automatic reversing, decal application on the other side, and unloading of the frame 4 is automatically conveyed by the track. There is no need for manual handling or overturning of the frame. Each station can carry out decal application operations simultaneously, continuously completing the standardized double-sided decal processing of the frame.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ring conveyor for pre-installing decals on the frame of a two-wheeled vehicle, characterized in that, include: Support frame (1); Limiting mechanism (2), the limiting mechanism (2) is provided on the support frame (1), and the limiting mechanism (2) is a ring circuit; The hoisting mechanism (3) is located in the limiting mechanism (2). The hoisting mechanism (3) is used to hoist the frame (4) and is moved by the drive source (14) included in the support frame (1) in the limiting mechanism (2).

2. The ring conveyor device for frame decals and pre-assembly of two-wheeled vehicles according to claim 1, characterized in that: The limiting mechanism (2) includes a mounting base (21) provided on the support frame (1). An extension (22) and a limiting member (23) are provided on one side of the mounting base (21). The extension (22) is used to lock and unlock the hoisting mechanism (3), and the limiting member (23) is used to connect the hoisting mechanism (3).

3. The ring conveyor device for frame decals and pre-assembly of two-wheeled vehicles according to claim 2, characterized in that: There are four limiting members (23), and they are arranged in pairs, with each pair of limiting members (23) arranged in a mirror image. The two limiting members (23) have a first guide groove (24) and a second guide groove (25) respectively on opposite sides. The first guide groove (24) is used to pull the hoisting mechanism (3), and the second guide groove (25) is used to limit and fix the hoisting mechanism (3).

4. The ring conveyor device for frame decals and pre-assembly of two-wheeled vehicles according to claim 3, characterized in that: The first guide groove (24) includes two opposing bent grooves (241) and two parallel straight grooves (242); All of the bent grooves (241) and all of the straight grooves (242) form a loop; The second guide groove (25) is provided only on the limiting member (23) at the bottom of the straight groove (242), and a guide plate (27) is provided at the end of the second guide groove (25). The guide plate (27) is used to guide the hoisting mechanism (3) into the second guide groove (25).

5. A ring conveyor for frame decals and pre-installation of a two-wheeled vehicle according to claim 3 or 4, characterized in that: The hoisting mechanism (3) includes a first traction wheel (31) located in the first guide groove (24) and a second traction wheel (33) located in the second guide groove (25). The first traction wheel (31) and the second traction wheel (33) are connected by a connecting rod (32).

6. A ring conveyor for frame decals and pre-assembly of a two-wheeled vehicle according to claim 5, characterized in that: The connecting rod (32) is also provided with a locking device (34) and a gear disk (35), the locking device (34) being used to lock the gear disk (35); One end of the locking device (34) is connected to the connecting rod (32) by a rotating shaft; The gear disk (35) is mounted on the connecting rod (32), and the connecting rod (32) is connected to the center of the gear disk (35). The gear disk (35) can rotate on the connecting rod (32) with the center of the disk as the center.

7. A ring conveyor for frame decals and pre-installation of a two-wheeled vehicle according to claim 6, characterized in that: The extension (22) is provided with a lifting member (222); The lifting member (222) is connected to the fixing member (221) provided on the extension member (22).

8. A ring conveyor for frame decals and pre-assembly of a two-wheeled vehicle according to claim 7, characterized in that: The locking device (34) is provided with a pulley (341) at its outer end. The pulley (341) is used to contact the lifting member (222) to lift the locking device (34). The locking device (34) is provided with a pin (342), which is used to fix the gear disk (35); The gear disk (35) has a slot adapted to the size of the pin (342).

9. A ring conveyor for frame decals and pre-assembly of a two-wheeled vehicle according to claim 6 or 8, characterized in that: The second guide groove (25) is provided with a rotating plate (26), and the rotating plate (26) has serrations on the side near the gear disk (35). The rotating plate (26) and the gear disk (35) mesh. The gear disk (35) and the rotating plate (26) are in contact, and the gear disk (35) meshes and rotates, changing the orientation of the frame (4).

10. A ring conveyor for frame decals and pre-assembly of a two-wheeled vehicle according to claim 6, characterized in that: A lifting component (36) is provided at one end of the connecting rod (32). The lifting component (36) and the gear disk (35) are connected as a whole. The lifting component (36) can rotate synchronously with the rotation of the gear disk (35). The hoisting component (36) has an installation component (37) on one side, which is used to connect with the frame (4).

Images