Front pushing device of pendulum shear line stacker crane
By adding a vertical linear guide pair and anti-collision block design to the push rod, the problem of equipment damage caused by improper operation in the swing shear line palletizer is solved, achieving high-precision control and equipment protection, and improving operational reliability and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-03
AI Technical Summary
In slewing shearing and palletizing machines, improper operation can lead to a mismatch between the front pushing device and the sheet material size, which can easily cause equipment damage and downtime. Existing technologies are not effective in protecting the equipment.
The push rod is designed with a vertical linear guide and anti-collision block. When the sheet metal gets stuck, the push rod can be pulled out of the slider to avoid damage to the equipment. High-precision control is achieved through a geared motor and a wire encoder.
It effectively protects equipment, reduces equipment failure and maintenance frequency, improves operational reliability and stability, reduces downtime, and enhances safety and production efficiency.
Smart Images

Figure CN223962824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for swing shear line palletizers, specifically a front pushing device for a swing shear line palletizer. Background Technology
[0002] The slitting shear is used on a slitting line to uncoil, slit, and stack metal coils of different widths into rectangular, trapezoidal, parallelogram, or even arc-shaped cuts (requiring curved blades) of the required length. It is suitable for processing cold-rolled and stainless steel materials, as well as various metal materials with surface coatings. The stacking machine, as the final process on the slitting shear line, has a crucial front-pushing device responsible for aligning the front and rear layers of the stack vertically.
[0003] However, in daily production, due to the repetitive nature of the work, operator oversights are inevitable. If the position of the lifting trolley or the forward pusher does not match the size of the sheet metal, some sheet metal will inevitably get under the forward pusher's stop. If the operator fails to notice this in time, when the trolley rises, it will cause permanent damage to the guiding mechanism of the entire forward pusher, resulting in prolonged production line downtime. Therefore, solving this problem has become a major technical challenge in the field of swivel shear line forward pusher palletizing machines. Summary of the Invention
[0004] The purpose of this utility model is to provide a front pushing device for a swing shearing and palletizing machine. A vertical linear guide rail pair is added to the pushing rod. When the plate below the blocking rod is lifted due to improper operation, the guide rail of the blocking rod can be pulled out from the slider, thereby protecting the equipment, reducing equipment accidents caused by human error in adjustment, and solving the problems in the prior art.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a front pushing device for a swing shearing and palletizing machine, including a base plate, on which a crossbeam is installed via a transverse linear guide pair. The slider of the transverse linear guide pair is installed on the base plate, and the guide rail of the transverse linear guide pair is installed at the bottom of the crossbeam. A rack arranged along the length direction is provided on one side of the crossbeam. A meshing gear is installed on the rack. A drive device is installed on the shaft of the gear. When the drive device is activated, it can drive the gear to rotate and move the crossbeam relative to the base plate through the transmission of the rack. A cylinder is also installed at the front end of the crossbeam. A vertically arranged pushing rod is installed at the end of the piston rod of the cylinder via a vertical linear guide pair. The slider of the vertical linear guide pair is installed on the piston rod of the cylinder, and the guide rail of the vertical linear guide pair is installed on the pushing rod. An anti-collision block is also installed on the pushing rod at the top of the vertical linear guide pair. The anti-collision block can restrict the downward movement of the pushing rod relative to the cylinder, and the pushing rod can move freely upward relative to the cylinder and the crossbeam. The driving device includes a geared motor mounted on a support. A transmission rod is mounted on the output shaft of the geared motor, and the transmission rod is connected to the gear shaft through a bearing seat. The geared motor, when started, drives the gear to rotate. Limit blocks are installed at both the front and rear ends of the rack. The gear is located on the rack between two limit blocks. When the gear rotates to contact the limit blocks, the crossbeam moves to its limit position. The cylinder is fixedly mounted at the end of the crossbeam via a mounting plate. The piston rod end of the cylinder is connected to a vertical linear guide pair via a transition plate, where the slider of the vertical linear guide pair is fixedly mounted on the transition plate. A wire encoder is installed at the lower part of the crossbeam, with the end of the wire encoder's pull rope installed at the end of the horizontal linear guide pair away from the cylinder. The push rod is a column with an arc-shaped cross-section. The position where the push rod connects to the vertical linear guide pair is a vertical plane, and the outer circumference of the push rod is an arc surface.
[0006] The positive effects of this utility model are as follows: The front pushing device of the swivel shearing palletizer described in this utility model, while retaining the original functions, protects the mechanical device by moving the linear guide rail on the pushing rod within the slider and disengaging it from above. This avoids equipment damage caused by sheet metal jamming in traditional designs, significantly improving the operational reliability and stability of the equipment, reducing equipment failures caused by improper operation, lowering maintenance frequency and downtime, thereby effectively reducing equipment maintenance costs and the risk of production line interruption. The anti-collision block design not only protects the equipment but also reduces the risk of personnel injury that may be caused by equipment failure, improving the overall safety of the workplace. The front pushing device greatly reduces the probability of swivel shearing equipment failure and damage caused by improper operation. In addition, the entire structure has the advantages of being simple and compact, having high adjustment accuracy, and being highly practical, which is conducive to its further promotion in the field of swivel shearing palletizers. Attached Figure Description
[0007] Figure 1This is a schematic diagram of the structure of this utility model;
[0008] Figure 2 yes Figure 1 View A in the middle;
[0009] Figure 3 This is a top view of the present invention;
[0010] Figure 4 This is a schematic diagram of the application of this utility model on a palletizing machine. Detailed Implementation
[0011] The present invention describes a front pushing device for a swing shearing and palletizing machine, such as... Figure 1-4 As shown, it includes a base plate 1, which is used to be fixedly installed on the frame of the palletizer. A crossbeam 3 is installed on the base plate 1 via a transverse linear guide pair 2. The crossbeam 3 can move relative to the base plate 1 in the length direction to advance the material. The slider of the transverse linear guide pair 2 is installed on the base plate 1, and the guide rail of the transverse linear guide pair 2 is installed at the bottom of the crossbeam 3.
[0012] To drive the movement of the crossbeam 3, a rack 5 arranged along its length is provided on one side of the crossbeam 3. A meshing gear 6 is mounted on the rack 5, and a drive device is mounted on the shaft of the gear 6. When the drive device is activated, it drives the gear 6 to rotate, and through the transmission of the rack 5, it moves the crossbeam 3 relative to the base plate 1. The drive device can be an existing rotary motor or hydraulic motor, or other equipment capable of power output, which can drive the gear 6 to rotate. Through the rotation of the gear 6, the meshing rack 5 can drive the crossbeam 3 to move synchronously.
[0013] A cylinder 4 is also installed at the front end of the crossbeam 3. A vertically arranged push rod 16 is mounted on the piston rod end of the cylinder 4 via a vertical linear guide pair 15. The push rod 16 is in direct contact with the sheet metal. When the piston rod of the cylinder 4 extends or retracts, it can drive the push rod 16 to move laterally, thereby pushing the sheet metal. The push rod 16 can move vertically up and down relative to the cylinder 4. The slider of the vertical linear guide pair 15 is mounted on the piston rod of the cylinder 4, and the guide rail of the vertical linear guide pair 15 is mounted on the push rod 16.
[0014] A bumper block 14 is also installed on the push rod 16 at the top of the vertical linear guide pair 15. The bumper block 14 restricts the downward movement of the push rod 16 relative to the cylinder 4, while the push rod 16 can move freely upward relative to the cylinder 4 and the crossbeam 3. Under the action of gravity, the bumper block 14 on the push rod 16 is always located on the slider of the vertical linear guide pair 15 to prevent itself from falling off. There is no limiting mechanism at the bottom of the vertical linear guide pair 15. When the sheet metal gets stuck, the sheet metal can push the push rod 16 upward without damaging any mechanism, thus protecting the mechanical device. If the slider of the push rod 16 disengages from the guide rail during the process of being pushed up, after clearing the stuck sheet metal, the slide rail on the push rod 16 can be repositioned and inserted into the slider of the cylinder 4. The operation is convenient, and normal use can continue afterward.
[0015] Both the crossbeam 3 and the front cylinder 4 are lateral movement mechanisms of the device. In actual use, the crossbeam 3 serves as the feeding part of the device, while the cylinder 4 and the push rod 16 act as the striking part. The movement of the crossbeam 3 first moves the push rod 16 to the approximate position, and then the extension and retraction of the cylinder 4 allows the push rod 16 to position and strike the sheet metal. If only the cylinder 4 is used as the lateral movement mechanism, its extension and retraction stroke will be significantly increased, reducing the efficiency of the sheet metal striking and stacking operation. The above-mentioned movement mechanism uses a combination of the crossbeam 3 and the cylinder 4. When dealing with sheet metal of different sizes and types, after the crossbeam 3 is moved to the approximate position, the cylinder 4 can achieve extension and retraction within a small stroke range, thereby increasing the reciprocating striking rate of the sheet metal and speeding up the stacking and sorting operation.
[0016] Furthermore, to achieve power input to gear 6 and ensure that gear 6 rotates only axially at a relatively fixed position, thereby driving rack 5 to move laterally, the driving device may include a reduction motor 9 mounted on support 10. A transmission rod 8 is mounted on the output shaft of reduction motor 9, and transmission rod 8 is connected to the rotating shaft of gear 6 through bearing seat 7. When reduction motor 9 starts, it can drive gear 6 to rotate. The bearing seat 7 provides the necessary support for the positioning and rotation of gear 6. Driven by transmission rod 8, gear 6 can rotate in a positioned position on bearing seat 7. Under the premise of ensuring that gear 6 does not move laterally, rack 5 can synchronously drive crossbeam 3 to move laterally.
[0017] Furthermore, to improve the safety of the crossbeam 3 during movement, limit blocks 11 are installed at both the front and rear ends of the rack 5, and the gear 6 is located on the rack 5 between the two limit blocks 11. When the gear 6 rotates to contact the limit block 11, it indicates that the crossbeam 3 has moved to its limit position. At this time, the reduction motor 9 will stop working to prevent mechanical damage caused by excessive movement of the crossbeam 3.
[0018] Furthermore, in order to facilitate the detachable connection of cylinder 4 on crossbeam 3, cylinder 4 is fixedly mounted on the end of crossbeam 3 via mounting plate 12. In order to achieve the detachable connection of vertical linear guide pair 15 to the piston rod end of cylinder 4, the piston rod end of cylinder 4 is connected to vertical linear guide pair 15 via transition plate 13, wherein the slider of vertical linear guide pair 15 is fixedly mounted on transition plate 13.
[0019] Furthermore, in order to monitor the movement position of the crossbeam 3 in real time, a pull-wire encoder 17 can also be installed on the lower part of the crossbeam 3. The pull-wire encoder 17 has its pull rope end installed at the end of the transverse linear guide 2 away from the cylinder 4. The pull-wire encoder 17 can be an existing pull-wire displacement sensor. As the crossbeam 3 moves, the pull rope will extend and retract accordingly, and the pull-wire encoder 17 can accurately measure and feedback the current position information of the crossbeam 3.
[0020] Furthermore, the push rod 16 is a column with an arc-shaped cross-section. The position where the push rod 16 connects to the vertical linear guide pair 15 is a vertical plane, and the outer periphery of the push rod 16 is an arc surface. The vertical plane facilitates the fixed installation of the vertical linear guide pair 15 on it, while the arc surface design of the outer periphery can better adapt to plates of different shapes and sizes. Even if there is no alignment with the plate, the plate can be pushed to the preset position under the guidance of the arc surface, effectively reducing the resistance during the pushing process and extending the service life of the push rod 16.
[0021] The front pushing device of the swing shear line palletizer described in this utility model also has the following advantages:
[0022] High-precision positioning: Through the cooperation of the geared motor 9 and the rack and pinion gear, and the use of the wire encoder 17, high-precision control of the movement of the crossbeam 3 is achieved, ensuring the accurate positioning of the push rod 16 during the pushing process, and improving the accuracy and efficiency of palletizing.
[0023] Easy to adjust and maintain: The drive unit, cylinder 4 and its connecting parts are all designed with standardized components, which facilitates daily inspection, maintenance and troubleshooting. At the same time, the design of mounting plate 12, transition plate 13 and other components makes component replacement and adjustment simpler and faster.
[0024] The front pushing device of the swivel shear line palletizer described in this utility model has the advantages of compact structure, high adjustment accuracy, strong practicality, and easy automation control. It not only effectively solves the problems existing in the prior art, such as equipment damage caused by improper operation, but also improves the efficiency and accuracy of palletizing operations, enhances production efficiency and ease of operation, and provides strong technical support for the further development of swivel shear line palletizers.
[0025] The technical solution of this utility model is not limited to the scope of the embodiments described herein. All technical contents not described in detail herein are publicly known technologies.
Claims
1. A front pushing device for a swing shearing line palletizer, characterized in that: The system includes a base plate (1), on which a crossbeam (3) is mounted via a transverse linear guide pair (2). The slider of the transverse linear guide pair (2) is mounted on the base plate (1), and the guide rail of the transverse linear guide pair (2) is mounted on the bottom of the crossbeam (3). A rack (5) is arranged along the length direction on one side of the crossbeam (3). A meshing gear (6) is mounted on the rack (5). A drive device is mounted on the shaft of the gear (6). When the drive device is activated, it drives the gear (6) to rotate and, through the transmission of the rack (5), causes the crossbeam (3) to move relative to the base plate (1). 3) The front end is also equipped with a cylinder (4). The piston rod end of the cylinder (4) is equipped with a vertically arranged push rod (16) through the vertical linear guide pair (15). The slider of the vertical linear guide pair (15) is installed on the piston rod of the cylinder (4), and the guide rail of the vertical linear guide pair (15) is installed on the push rod (16). A collision block (14) is also installed on the push rod (16) at the top of the vertical linear guide pair (15). The collision block (14) can restrict the push rod (16) from moving downward relative to the cylinder (4). The push rod (16) can move upward freely relative to the cylinder (4) and the crossbeam (3).
2. The front pushing device of a swing shearing line palletizer according to claim 1, characterized in that: The drive device includes a geared motor (9) mounted on a support (10). A transmission rod (8) is mounted on the output shaft of the geared motor (9). The transmission rod (8) is connected to the shaft of the gear (6) through a bearing seat (7). When the geared motor (9) is started, it can drive the gear (6) to rotate.
3. The front pushing device of a swing shearing line palletizer according to claim 1, characterized in that: Limit blocks (11) are installed at both the front and rear ends of the rack (5). The gear (6) is located on the rack (5) between the two limit blocks (11). When the gear (6) rotates to contact the limit block (11), the crossbeam (3) moves to the limit position.
4. The front pushing device of a swing shearing line palletizer according to claim 1, characterized in that: The cylinder (4) is fixedly mounted on the end of the crossbeam (3) via the mounting plate (12). The piston rod end of the cylinder (4) is connected to the vertical linear guide pair (15) via the transition plate (13). The slider of the vertical linear guide pair (15) is fixedly mounted on the transition plate (13).
5. The front pushing device for a swing shearing line palletizer according to claim 1, characterized in that: A pull-wire encoder (17) is installed on the lower part of the crossbeam (3), and the pull end of the pull-wire encoder (17) is installed on the end of the transverse linear guide pair (2) away from the cylinder (4).
6. The front pushing device of a swing shearing line palletizer according to claim 1, characterized in that: The push rod (16) is a column with an arc-shaped cross-section. The position where the push rod (16) connects with the vertical linear guide pair (15) is a vertical plane, and the outer periphery of the push rod (16) is an arc surface.