Shear type gravity pre-tightening automatic unhooking material lifting tool
By designing scissor gravity preloaded automatic dehooking material lifting tools, the automatic lifting and clamping function is achieved using shoulder pole lifting beams and scissor jaw structures, the safety risks of hook slippage and manual intervention are solved, and the safety and efficiency of lifting operations are improved.
Patent Information
- Application Number
- CN202421661326.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-15
AI Technical Summary
In the existing sling design, the hook is hung on the middle square bar on both sides of the material roll. If the center of gravity is unstable, it is easy to cause the hook and the square bar to slide off, causing the material roll to fall from a high altitude. In addition, the operator needs to install or remove the hook for each lifting and discharging, which poses a safety risk.
A scissor gravity pre-tightening automatic dehooking material lifting tool is designed, adopting a shoulder pole hanging beam and a scissor jaw structure, and a symmetrical semicircular arc scissor clamp is formed through double-headed wires to form a symmetrical semicircular scissor clamp, realizing the automatic lifting and clamping function and reducing manual intervention.
Effectively prevent the hook from slipping and the square bar from sliding, ensure the safety of the material roll, reduce the labor intensity and safety risks of the operator, and improve the safety and efficiency of lifting operations.
Smart Images
Figure CN222907324U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hoisting tools, and particularly to a scissor-type gravity pre-tightening automatic decoupling material lifting tool for the coiler lifting operation in the semi-finished product production process. Background Art
[0002] As is well known, in the tire manufacturing field, the tire consists of components such as inner liner, carcass, bead, sidewall, tread, etc. During the production process, the inner liner and carcass are generally coiled, lifted, and stored in the form of a reel square bar. To reduce the frequency of material replacement, generally speaking, the coils are designed and coiled according to the maximum installation space of the forming machine, and the single weight reaches about 80 - 120 Kg. Since the height of the coiling part of the equipment is above 1.2 meters, it is very difficult for manual operation to take the coils. Hoisting equipment and tools must be used for hoisting. The original hoist is designed with a flat beam structure, and the two sides are respectively connected with a sling chain to connect the flat beam and the hook. During use, the hook is hung on the middle square bar on both sides of the coil. If the center of gravity is unstable, it is easy to cause the hook to slip off the square bar, resulting in the coil falling from a height. Moreover, each time of hoisting and discharging requires the operator to install or remove the hook, which poses a certain safety risk. Summary of the Invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a scissor-type gravity pre-tightening automatic decoupling material lifting tool, which can solve the problems that when the hook is hung on the middle square bar on both sides of the coil, if the center of gravity is unstable, it is easy to cause the hook to slip off the square bar, resulting in the coil falling from a height, and each time of hoisting and discharging requires the operator to install or remove the hook, which poses a certain safety risk.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a scissor-type gravity pre-tightening automatic decoupling material lifting tool is provided with a flat beam. There is a flat beam hoisting hole in the middle of the flat beam. The feature is that pin holes connected to two upper hoisting rings are respectively arranged at both ends of the flat beam. The lower ends of the two upper hoisting rings are respectively connected to two middle hoisting rings. The lower ends of the middle hoisting rings are respectively connected to the upper end pin holes of the two side connecting rods. The lower end pin holes of the two side connecting rods are connected to the upper end connection holes of four symmetric left and right scissor jaws through connecting pins. One side of the connecting scissor jaws is simultaneously connected to the handle connecting rod through a connecting pin. The middle connection holes of the four symmetric left and right scissor jaws are connected into two sets of paired scissor clamps through double-headed threaded connecting pins. A spring self-resetting locking pin is arranged at the top of the handle connecting rod. A positioning locking hole is processed on one side of the connecting rod. The lower parts of the four symmetric left and right scissor jaws are two sets of arc-shaped fixture plates, forming two symmetric left and right fixtures. The two sets of arc-shaped fixture plates are hinged through double-headed threaded connecting pins and form a shear structure symmetrically left and right with the double-headed threaded connecting pin as the center.
[0005] The bottom of the handle connecting rod adopts a double-thread connection form to connect the handle connecting rods on both sides of the shoulder pole hanging beam.
[0006] A connecting rod limit block is provided at the position below the upper end of the scissor claw and the mounting hole of the connecting pin shaft.
[0007] Anti-slip patterns are provided on the inner sides of the two sets of arc-shaped fixture plates.
[0008] The beneficial effects of the present utility model are as follows: it can prevent the sling from slipping off the square bar, resulting in the high-altitude fall of the coil, ensure the operation safety of the operator, and reduce the manual intervention in hanging and removing the sling, thus reducing the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0010] Figure 1 Structural schematic diagram of the present utility model.
[0011] Figure 2 is Figure 1 left view of.
[0012] In the figure: 1. Shoulder pole hanging beam, 2. Hoisting hole of shoulder pole hanging beam, 3. Upper hoisting ring, 4. Middle hoisting ring, 5. Connecting rod, 6. Positioning and locking hole, 7. Connecting pin shaft, 8. Handle connecting rod, 9. Spring self-resetting locking pin, 10. Handle, 11. Connecting rod limit block, 12. Scissor claw, 13. Double-thread connecting pin shaft, 14. Arc-shaped fixture plate, A. Material coil, B. Material coil shaft, C. Material square bar. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0013] In the figure, the utility model is provided with a shoulder pole lifting beam 1. A lifting hole 2 of the shoulder pole lifting beam is arranged at the middle position of the shoulder pole lifting beam 1, and left - right symmetry is ensured to keep the balance of the shoulder pole lifting beam 1. Connecting holes are respectively arranged on both sides of the shoulder pole lifting beam 1 and are connected through an upper lifting ring 3 and a middle lifting ring 4. The lower end of the middle lifting ring 4 is connected to one end of a connecting rod 5. A positioning locking hole 6 is arranged at the fixed position of the connecting rod 5. The other end of the connecting rod 5 is connected to a scissor gripper 12 through a connecting pin shaft 7 and is hinged to a handle connecting rod 8 on one side. A spring self - reset locking pin 9 is arranged at the upper end of the handle connecting rod 8. When the locking function is to be used, the spring self - reset locking pin 9 coincides with the positioning locking hole 6. When the handle connecting rod 8 is lifted, it is ensured that the spring self - reset locking pins 9 on both sides are automatically locked simultaneously, and the position is locked under the action of the spring. A connecting rod limit block 11 is added below the connecting pin shaft 7 at the upper end of the scissor gripper 12 to limit the position during the lowering process of the connecting rod 5, so as to ensure the maximum straight - line distance of the connecting rod 5, thereby realizing the maximum opening stroke of the scissor gripper 12. The middle connecting holes of four left - right symmetric scissor grippers 12 are connected into two sets of scissor clamps in pairs through a double - threaded connecting pin shaft 13. The two sets of scissor clamps are connected by an arc - shaped clamp plate 14 to form a symmetric semi - circular arc scissor clamp. An anti - slip pattern design is arranged on the inner side of the arc - shaped clamp plate 14 to increase the friction during the hoisting operation and play a safety protection role. When the overhead crane is started to lower the symmetric semi - circular arc scissor clamp, it falls above the material coil A. Under the action of the flexible connection and the connecting rod mechanism, the symmetric semi - circular arc scissor clamp drives around the double - threaded connecting pin shaft 13 to open. When the upper end of the symmetric semi - circular arc scissor clamp touches above the material coil A, the overhead crane is started to rise. When lifting the lifting hole of the shoulder pole lifting beam 1, under the action of the flexible connection and the connecting rod mechanism, the four left - right symmetric scissor grippers 12 shear and clamp around the double - threaded connecting pin shaft 13 to complete the automatic hoisting and clamping function, and the material coil A is driven to move and carry through the lifting hole 2 of the shoulder pole lifting beam.
[0014] The specific operation plan is as follows: The operator operates the overhead crane and drives it above the material coil A. By using the overhead crane hook through the lifting beam hoisting hole 2 in the middle position of the lifting beam 1, during the descent of the overhead crane, the lifting beam 1 drives the connecting rod 5 to lower through the upper lifting rings 3 and middle lifting rings 4 symmetrically installed on both sides. When the spring self-resetting locking pin 9 on the handle connecting rod 8 of the symmetric semi-circular scissor clamp coincides with the positioning locking hole 6 and is automatically locked in the fully opened and locked state, and the upper end touches above the material coil A after descending, manually lift the handle 10 to drive the handle connecting rod 8. Under the action of external force, the spring self-resetting locking pin 9 is driven to separate from the positioning locking hole 6 by the spring's return pressure. Start the overhead crane to rise, and drive the connecting rod 5 to rise through the lifting beam hoisting hole 2 in the middle position of the lifting beam 1 and the upper lifting rings 3 and middle lifting rings 4 symmetrically installed on both sides of the lifting beam 1. During the rising process of the connecting rod 5, it runs from a position with an included angle of 180° gradually to a direction with an included angle less than 180°. Under the action of the anti-slip pattern on the inner side of the arc-shaped fixture plate 14 of the scissor jaw 12, it rubs against the material coil A, prompting the symmetric semi-circular scissor clamp to drive the scissor jaw 12 centered on the double-thread connecting pin 13 through the connecting pin 7 to clamp the material coil A in contact. Then, open the chucks on both sides of the coiling device, and drive the material coil A to rise through the lifting beam hoisting hole 2 of the lifting beam. Under the action of the more stressed and more clamped effect, it leaves the coiling station. After taking out the material square bar C in the hollow hole of the material shaft B in the middle of the material coil A, move and carry the material coil A. After transporting it to a special vehicle or storage rack, start to lower the overhead crane. The lifting beam 1 drives the connecting rod 5 to lower through the upper lifting rings 3 and middle lifting rings 4 symmetrically installed on both sides. During the lowering process of the connecting rod 5, it runs from a position with an included angle <180° gradually approaching an included angle of 180°, prompting the symmetric semi-circular scissor clamp to drive the scissor jaw 12 centered on the double-thread connecting pin 13 through the connecting pin 7 to open on the material coil A. When the upper end of the symmetric semi-circular scissor jaw touches above the material coil A placed on the special vehicle or storage rack after descending, when the connecting rod 5 touches the connecting rod limit block 11 and reaches the maximum opening position, the operator manually lifts the handle 10 to drive the handle connecting rod 8 to make the spring self-resetting locking pin 9 coincide with the positioning locking hole 6 and automatically lock it. Lock the position under the action of the spring. Start the overhead crane to rise, operate the overhead crane to move the lifting tool to the temporary storage position, and repeat the above actions when it touches the material coil A for the next use. During the handling process, it completely eliminates the risk that the unbalanced state of the traditional lifting beam is prone to causing the hook to slip off the square bar, resulting in the high-altitude fall of the coil, and the risk that the operator needs to install or remove the hook for each hoisting and discharging, bringing safe and convenient operation to the operator.
Claims
1. A scissor-type gravity pre-tightening automatic unhooking material lifting tool, provided with a shoulder pole lifting beam, a shoulder pole lifting beam lifting hole is provided in the middle of the shoulder pole lifting beam, and is characterized in that: Pin holes connected to two upper lifting rings are respectively provided at both ends of the shoulder pole lifting beam, the lower ends of the two upper lifting rings are respectively connected to two middle lifting rings, the lower ends of the middle lifting rings are respectively connected to the upper pin holes of the connecting rods on both sides, the lower pin holes of the connecting rods on both sides are connected to the upper connecting holes of four symmetrical scissor-type clamps through connecting pins, one side of the scissor-type clamp is connected to the handle connecting rod through a connecting pin, the middle connecting hole of the four symmetrical scissor-type clamps is connected to two sets of paired scissor-type clamps through a double-headed wire connecting pin, the top of the handle connecting rod is provided with a spring self-resetting locking pin, one side of the connecting rod is processed with a positioning locking hole, the lower part of the four symmetrical scissor-type clamps is passed through two sets of arc-shaped clamp plates to form two symmetrical clamps on the left and right, the two sets of arc-shaped clamp plates are hinged by a double-headed wire connecting pin, and a shear structure is formed symmetrically on the left and right with the double-headed wire connecting pin as the center.
2. According to claim 1, the scissor-type gravity pre-tightening automatic unhooking material lifting tool is characterized in that The bottom of the handle connecting rod adopts a double-headed thread connection form to connect the handle connecting rods on both sides of the shoulder pole hanging beam.
3. The scissor-type gravity pre-tightening automatic unhooking material lifting tool according to claim 1 is characterized in that A connecting rod limiting block is arranged at the upper end of the scissor-type clamping jaw and below the connecting pin shaft mounting hole.
4. The scissor-type gravity pre-tightening automatic unhooking material lifting tool according to claim 1 is characterized in that The inner sides of the two sets of arc-shaped fixture plates are provided with anti-slip patterns.