Telescopic grabbing device suitable for tray stacking and unstacking equipment

Abstract

The utility model relates to the technical field of unstacking and stacking devices, in particular to a telescopic grabbing device suitable for tray stacking and unstacking equipment. The device comprises a fixed telescopic plate and at least one movable telescopic plate which are sequentially stacked from top to bottom, first idle wheels are arranged at the two ends of the fixed telescopic plate respectively, a synchronous belt is arranged between the two first idle wheels in a sleeving mode, a gear motor is arranged on the fixed telescopic plate, and the synchronous belt is fixed to the tail end of the movable telescopic plate through a belt pressing plate. Every two adjacent movable telescopic plates are in transmission connection through second idle wheels at the two ends of the upper movable telescopic plate and a steel wire rope arranged between the two second idle wheels in a sleeved mode, the steel wire rope and the tail end of the lower stacked movable telescopic plate are fixed through a lower rope pressing plate, and the steel wire rope and the front end of the upper stacked movable telescopic plate are fixed through an upper rope pressing plate. The loading mechanism has a simple structure, meets the loading requirement of the empty tray, and provides support for positioning the empty tray in a spatial range by a grabbing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of palletizing and depalletizing devices, and particularly to a telescopic grasping device applicable to pallet stacking and depalletizing equipment for pallets. Background Art

[0002] As an indispensable loading, unloading, storage and transportation device in modern logistics, the pallet is a horizontal platform device widely used for containerizing, stacking, handling and transporting various goods and products. In the field of conveyor lines, pallets are particularly widely used. Once the pallets are not properly stacked after use, the work site will become extremely messy, which not only affects work efficiency but also easily leads to safety accidents. In addition, when using pallets, it is necessary to depalletize the stacked pallets. However, the current pallet stacking and depalletizing processes mainly rely on the operation of forklifts or manual labor, which brings inconvenience to logistics operations.

[0003] There are mainly two methods for stacking or depalletizing empty pallets in existing palletizers. One is to use a stacking and depalletizing machine for grasping and placing. The stacking and depalletizing machine is a device that arranges and stacks multiple empty pallets to automatically stack or depalletize pallets. This device stacks the pallets neatly as required, which is convenient for storage and transportation. The other is to set up an empty pallet conveyor line and use a forklift or manual labor to sequentially place or remove single empty pallets.

[0004] When using a stacking and depalletizing machine to stack and depalletize pallets, the grasping mechanism needs to clamp and place the pallets within the ground range. Currently, the grasping mechanism is usually installed on the travel frame, which results in a complex device structure and a large occupied space, and is likely to interfere with the layout of other devices, and is not suitable for grasping and placing empty pallets. Summary of the Utility Model

[0005] Aiming at the situation in the above-mentioned prior art that the positioning of empty pallets within the depth space range occupies site space and the structure is complex and cannot meet the requirements of existing sites. The utility model provides a telescopic grasping device applicable to pallet stacking and depalletizing equipment, which has a simpler structure and meets the load requirements of empty pallets, and provides support for the grasping mechanism to position empty pallets within the space range.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions: a telescopic grasping device applicable to a pallet stacking and unstacking device, which includes a fixed telescopic plate, and at least one movable telescopic plate is stacked on the fixed telescopic plate from top to bottom in sequence; the movable telescopic plate is slidably connected to the fixed telescopic plate; if there are two movable telescopic plates, the first-layer movable telescopic plate is slidably connected to the fixed telescopic plate, and the second-layer movable telescopic plate is slidably connected to the first-layer movable telescopic plate; if there are more than two movable telescopic plates, they are stacked and slidably connected in sequence with reference to the connection method when there are two movable telescopic plates; a telescopic driving component is arranged on the fixed telescopic plate, and the telescopic driving component drives the movable telescopic plate to make a linear reciprocating motion relative to the fixed telescopic plate;

[0007] The telescopic driving component includes first idler wheels arranged at both ends of the fixed telescopic plate, a synchronous belt sleeved between the two first idler wheels, and a reduction motor; the reduction motor is in transmission connection with the synchronous belt and the front and rear first idler wheels of the fixed telescopic plate; the synchronous belt is fixed to the tail end of the movable telescopic plate through a belt pressing plate. When the reduction motor drives the synchronous belt to rotate forward, it drives the movable telescopic plate to make an extending action relative to the fixed telescopic plate. When the reduction motor drives the synchronous belt to rotate backward, it drives the movable telescopic plate to make a contracting action relative to the fixed telescopic plate.

[0008] Further, two or more movable telescopic plates are stacked on the fixed telescopic plate from top to bottom in sequence. The lower movable telescopic plate is slidably assembled on the upper movable telescopic plate. A follow-up component is arranged on the upper movable telescopic plate. The follow-up component includes second idler wheels arranged at both ends of the upper movable telescopic plate. A transmission member is arranged between the two second idler wheels. The transmission member is fixed to the tail end of the lower movable telescopic plate stacked under the upper movable telescopic plate through a lower rope pressing plate; the transmission member is fixed to the upper movable telescopic plate stacked on the upper movable telescopic plate or the fixed telescopic plate through an upper rope pressing plate.

[0009] Furthermore, the front and rear first idler wheels are embedded in the front and rear ends of the fixed telescopic plate, so that the upper belt and the lower belt of the synchronous belt are respectively located above and below the fixed telescopic plate. The front and rear second idler wheels are embedded in the front and rear ends of the movable telescopic plate, and the upper rope and the lower rope of the steel wire rope are respectively located above and below the movable telescopic plate.

[0010] Furthermore, the reduction motor is installed on the top of the fixed telescopic plate. A driving wheel and a guide wheel located below the driving wheel are arranged on the reduction motor. The reduction motor is located between the two first idler wheels, and the synchronous belt sequentially bypasses the driving wheel and then bypasses the guide wheel between the driving wheel and the guide wheel and is connected to the front first idler wheel.

[0011] Further, both the driving wheel and the first idler wheel are ribbed wheels.

[0012] Furthermore, between the fixed telescopic plate and the movable telescopic plate, and between adjacent movable telescopic plates, they are all slidably connected through two parallel first linear guide rails and sliders.

[0013] Furthermore, the fixed telescopic plate and the movable telescopic plate are provided with a plurality of circularly hollowed round holes along the length direction.

[0014] Furthermore, the movable telescopic plate at the bottommost layer of the fixed telescopic plate is connected to the grasping mechanism.

[0015] Furthermore, the grasping mechanism includes a frame member. At the bottom of the frame member, two second linear guide rails are arranged in parallel. At both ends of the two second linear guide rails, grasping hooks are relatively slidably arranged. A driving cylinder is fixed on the frame member. The telescopic end of the driving cylinder is connected to one of the grasping hooks. At the bottom of the two grasping hooks, synchronous connecting rods are rotatably connected. The two synchronous connecting rods are parallel and the other ends of the synchronous connecting rods are respectively rotatably connected to the end of the swing connecting rod. The middle of the swing connecting rod is rotatably connected to the frame member for stacking and unstacking.

[0016] In summary, the present utility model has the following beneficial effects:

[0017] (1) This device adopts a laminated structure of fixed telescopic plates and movable telescopic plates, and realizes the stacking and unstacking operations of pallets through linear motion and lamination. This structural design makes the device have higher stability and controllability during stacking and unstacking operations, effectively reducing vibrations and deviations during operations; the laminated telescopic plates can control the clamping space range and effectively reduce space occupation.

[0018] (2) Adopting a transmission mechanism of idler wheels and synchronous belts, through the drive of a reduction motor, the synchronous movement of the fixed telescopic plate and the movable telescopic plate is realized. This transmission mechanism has the advantages of high transmission efficiency, low noise, and smooth movement, and can accurately control the movement speed and position of the telescopic device. The driving wheel and the first idler wheel adopt a ribbed wheel design, which increases the reliability of the transmission, effectively preventing the occurrence of phenomena such as the transmission belt falling off or slipping, and ensuring the reliability and stability of the device during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the telescopic device.

[0020] Figure 2 It is a structural schematic diagram of the telescopic plate.

[0021] Figure 3 It is a structural schematic diagram of the grasping mechanism.

[0022] Among them, the description of the attached drawing reference numerals is as follows: 1. Telescopic device; 11. Mounting plate; 12. Fixed telescopic plate; 121. First idler wheel; 122. Synchronous belt; 123. Reduction motor; 124. Driving wheel; 125. Guide wheel; 13. Movable telescopic plate; 131. Second idler wheel; 132. Steel wire rope; 133. Round hole; 14. First linear guide rail; 2. Gripping mechanism; 21. Frame member; 22. Second linear guide rail; 23. Gripping hook; 24. Synchronous connecting rod; 25. Swing connecting rod. Detailed implementation mode

[0023] The present utility model will be further described in detail below in conjunction with embodiments.

[0024] During specific implementation: As Figures 1 to 3 shown, the telescopic gripping device applicable to the pallet stacking and destacking equipment includes a fixed telescopic plate 12, and at least one movable telescopic plate 13 is stacked on the fixed telescopic plate 12 from top to bottom in sequence; the movable telescopic plate 13 is slidably connected to the fixed telescopic plate 12; if there are two movable telescopic plates 13, the first-layer movable telescopic plate 13 is slidably connected to the fixed telescopic plate 12, and the second-layer movable telescopic plate 13 is slidably connected to the first-layer movable telescopic plate 13; if there are more than two movable telescopic plates 13, referring to the connection method when there are two movable telescopic plates 13, they are stacked and slidably connected in sequence to realize the stacking and destacking operations of pallets within the space of the length range, and the structure of the stacked fixed telescopic plate 12 and movable telescopic plate 13 makes the stacking and destacking process more efficient and flexible. The telescopic device 1 overlaps with the material in the vertical space, which can extend the gripping range and reduce the occupied space.

[0025] A telescopic driving assembly is arranged on the fixed telescopic plate 12, and the telescopic driving assembly drives the movable telescopic plate 13 to make a linear reciprocating motion relative to the fixed telescopic plate 12.

[0026] The telescopic driving assembly includes first idler wheels 121 arranged at both ends of the fixed telescopic plate 12, a synchronous belt 122 sleeved between the two first idler wheels 121, and a reduction motor 123; the reduction motor 123 is in transmission connection with the synchronous belt 122 and the front and rear first idler wheels 121 of the fixed telescopic plate 12; the synchronous belt 122 is fixed to the tail end of the movable telescopic plate 13 through a belt pressing plate. When the reduction motor 123 drives the synchronous belt 122 to rotate forward, it drives the movable telescopic plate 13 to make an extending action relative to the fixed telescopic plate 12. When the reduction motor 123 drives the synchronous belt 122 to rotate backward, it drives the movable telescopic plate 13 to make a contracting action relative to the fixed telescopic plate 12.

[0027] Among them, two or more movable telescopic plates 13 are stacked on top of each other from top to bottom on the fixed telescopic plate 12. The lower movable telescopic plate 13 is slidably assembled on the upper movable telescopic plate 13. A follower assembly is provided on the upper movable telescopic plate 13. The follower assembly includes second idler wheels 131 provided at both ends of the upper movable telescopic plate 13. A transmission member is provided between the two second idler wheels 131. The transmission member is fixed to the tail end of the lower movable telescopic plate 13 stacked under the upper movable telescopic plate 13 through a lower rope pressing plate; the transmission member is fixed to the upper movable telescopic plate 13 stacked on the upper movable telescopic plate 13 or the fixed telescopic plate 12 through an upper rope pressing plate. The reduction motor 123 drives the movable telescopic plates 13 of each layer to move, and controls the movement speed and position of the movable telescopic plates 13. The movable telescopic plates 13 are connected by wire ropes 132 in a transmission manner, and second idler wheels 131 are provided between two adjacent movable telescopic plates 13 to guide the transmission of the wire ropes 132.

[0028] During implementation, the front and rear first idler wheels 121 are embedded at the front and rear ends of the fixed telescopic plate 12, and the synchronous belt 122 can be divided into an upper belt and a lower belt, so that the upper belt and the lower belt of the synchronous belt 122 are located above and below the fixed telescopic plate 12 respectively. The front and rear second idler wheels 131 are embedded at the front and rear ends of the movable telescopic plate 13, and the upper rope and the lower rope of the wire rope 132 are located above and below the movable telescopic plate 13 respectively. The lower belt of the synchronous belt 122 is fixed to the lower movable telescopic plate 13 through a pressing plate. As the synchronous belt 122 runs, the synchronous belt 122 drives the lower movable telescopic plate 13 to move, that is, the upper rope of the wire rope 132 on the second-layer movable telescopic plate 13 is fixed to the bottom of the fixed telescopic plate 12 through a rope pressing plate, and the lower rope of the wire rope 132 is fixed to the lower, that is, the third-layer movable telescopic plate 13 through a pressing plate. In the retracted stacked state, the front end of the bottom of the fixed telescopic plate 12 is fixed to the position of the wire rope 132 close to the front end of the third-layer movable telescopic plate 13, and the position corresponding to the lower rope of the wire rope 132 at the position where the top of the third-layer movable telescopic plate 13 is close to the rear end is fixed, so as to realize the linkage of each telescopic plate.

[0029] During implementation, the reduction motor 123 is installed on the top of the fixed telescopic plate 12. A driving wheel 124 and a guide wheel 125 located below the driving wheel 124 are provided on the reduction motor 123. The reduction motor 123 is located between the two first idler wheels 121, and the synchronous belt 122 sequentially bypasses the driving wheel 124 and then bypasses the guide wheel 125 between the driving wheel 124 and the guide wheel 125 and is then connected to the first idler wheel 121 at the front end. In this way, the synchronous belt 122 bypassing the driving wheel 124 increases the contact area with the driving wheel 124, achieving the effect of driving transmission. Among them, both the driving wheel 124 and the first idler wheel 121 are ribbed wheels, which can increase the friction force with the synchronous belt 122, improve the transmission efficiency and stability. The surface of the ribbed wheel has raised stripes, which can increase the contact area with the synchronous belt 122 and reduce the possibility of slipping and skidding, thereby better transmitting the driving force.

[0030] During implementation, both between the fixed telescopic plate 12 and the movable telescopic plate 13 and between two adjacent movable telescopic plates 13 are slidably connected through two parallel first linear guide rails 14 and sliders. The connection method of the linear guide rail and the slider can ensure the smooth movement of the telescopic device. The linear guide rail has the characteristics of high precision and low friction, making the movement of the telescopic plate more stable during stacking and unstacking, reducing friction loss and energy consumption. The design of the slider and the cooperation of the guide rail make the telescopic device have high rigidity and stability and can bear the weight of the pallet.

[0031] During implementation, the fixed telescopic plate 12 and the movable telescopic plate 13 are provided with a plurality of round holes 133 with circular hollow-outs along the length direction. Since the weight of the empty pallet is relatively light, by opening round holes with circular hollow-outs on the plate, this lightweight design can reduce the amount of material used, thereby reducing the overall weight while maintaining high structural strength and rigidity.

[0032] During specific implementation, the rear end of the fixed telescopic plate 12 is connected to the mounting plate 11 and is installed on the lifting mechanism through the mounting plate 11. The movable telescopic plate 13 at the lowermost layer of the fixed telescopic plate 12 is connected to the grasping mechanism 2. The grasping mechanism 2 includes a frame member 21. Two second linear guide rails 22 are arranged in parallel at the bottom of the frame member 21. At both ends of the two second linear guide rails 22, grasping hooks 23 are slidably arranged relatively. A driving cylinder is fixed on the frame member 21. The telescopic end of the driving cylinder is connected to one of the grasping hooks 23. The bottoms of the two grasping hooks 23 are rotatably connected to a synchronous connecting rod 24. The two synchronous connecting rods 24 are parallel, and the other ends of the synchronous connecting rods 24 are respectively rotatably connected to the ends of a swing connecting rod 25. The middle of the swing connecting rod 25 is rotatably connected to the frame member 21. The setting of the driving cylinder can realize the telescopic control of the grasping hook 23 and control the timing of grasping and releasing the pallet.

[0033] In summary, the telescopic grabbing device suitable for pallet stacking and destacking equipment has structures such as stacked fixed telescopic plates 12 and movable telescopic plates 13, steel wire rope 132 transmission connection, reduction motor 123 and idler wheel transmission, linear guide rail and slider connection, grabbing mechanism 2, etc. The combination and coordination of these components enable the device to have efficient, stable and accurate stacking and destacking capabilities, can adapt to pallets of different sizes and shapes, improve the automation and operating efficiency of the stacking and destacking process, and reduce labor costs and risks.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A telescopic gripping device suitable for pallet stacking and destacking equipment, characterized in that: The invention comprises a fixed telescopic plate (12), wherein at least one movable telescopic plate (13) is stacked in sequence from top to bottom on the fixed telescopic plate (12); the movable telescopic plate (13) is slidably connected to the fixed telescopic plate (12); if there are two movable telescopic plates (13), the first movable telescopic plate (13) is slidably connected to the fixed telescopic plate (12), and the second movable telescopic plate (13) is slidably connected to the first movable telescopic plate (13); if there are more than two movable telescopic plates (13), they are stacked and slidably connected in sequence in accordance with the connection method when there are two movable telescopic plates (13); a telescopic drive component is provided on the fixed telescopic plate (12), and the telescopic drive component drives the movable telescopic plate (13) to perform linear reciprocating motion relative to the fixed telescopic plate (12); The telescopic drive assembly comprises first idler wheels (121) arranged at both ends of the fixed telescopic plate (12), a synchronous belt (122) sleeved between the two first idler wheels (121), and a reduction motor (123); the reduction motor (123) forms a transmission connection with the synchronous belt (122) and the two first idler wheels (121) at the front and rear of the fixed telescopic plate (12); the synchronous belt (122) is fixed to the rear end of the movable telescopic plate (13) via a belt pressure plate; when the reduction motor (123) drives the synchronous belt (122) to rotate in the forward direction, the movable telescopic plate (13) is driven to extend relative to the fixed telescopic plate (12); and when the reduction motor (123) drives the synchronous belt (122) to rotate in the reverse direction, the movable telescopic plate (13) is driven to retract relative to the fixed telescopic plate (12).

2. The telescopic gripping device suitable for pallet stacking and destacking equipment according to claim 1, characterized in that: The fixed telescopic plate (12) is stacked with two or more movable telescopic plates (13) in sequence from top to bottom, the lower movable telescopic plate (13) is slidably mounted on the upper movable telescopic plate (13), and a follower assembly is arranged on the upper movable telescopic plate (13), the follower assembly includes second idler wheels (131) arranged at both ends of the upper movable telescopic plate (13), and a transmission member is arranged between the two second idler wheels (131), and the transmission member is fixed to the tail end of the lower movable telescopic plate (13) stacked under the upper movable telescopic plate (13) through a lower rope pressure plate; the transmission member is fixed to the upper movable telescopic plate (13) or the fixed telescopic plate (12) stacked on the upper movable telescopic plate (13) through an upper rope pressure plate.

3. The telescopic gripping device suitable for pallet stacking and destacking equipment according to claim 2, characterized in that: Two front and rear first idler wheels (121) are embedded in the front and rear ends of the fixed telescopic plate (12), so that the upper belt and the lower belt of the synchronous belt (122) are respectively located above and below the fixed telescopic plate (12); two front and rear second idler wheels (131) are embedded in the front and rear ends of the movable telescopic plate (13), and the upper rope and the lower rope of the steel wire rope (132) are respectively located above and below the movable telescopic plate (13).

4. The telescopic gripping device suitable for pallet stacking and destacking equipment according to claim 3, characterized in that: The reduction motor (123) is mounted on the top of the fixed telescopic plate (12). The reduction motor (123) is provided with a driving wheel (124) and a guide wheel (125) located below the driving wheel (124). The reduction motor (123) is located between the two first idler wheels (121), and the synchronous belt (122) sequentially passes around the driving wheel (124) and passes between the driving wheel (124) and the guide wheel (125), then passes around the guide wheel (125) and is connected to the first idler wheel (121) at the front end.

5. The telescopic gripping device suitable for pallet stacking and destacking equipment according to claim 4, characterized in that: The driving wheel (124) and the first idle wheel (121) are both convex wheels.

6. The telescopic gripping device suitable for pallet stacking and destacking equipment according to any one of claims 1 to 5, characterized in that: The fixed telescopic plate (12) and the movable telescopic plate (13), as well as two adjacent movable telescopic plates (13), are connected in a sliding manner via two parallel first linear guide rails (14) and a sliding block.

7. The telescopic gripping device suitable for pallet stacking and destacking equipment according to any one of claims 1 to 5, characterized in that: The fixed telescopic plate (12) and the movable telescopic plate (13) are provided with a plurality of circular hollow holes (133) along the length direction.

8. The telescopic gripping device suitable for pallet stacking and destacking equipment according to any one of claims 1 to 5, characterized in that: The movable telescopic plate (13) located at the bottom layer of the fixed telescopic plate (12) is connected to the grabbing mechanism (2).

9. The telescopic gripping device suitable for pallet stacking and destacking equipment according to claim 8, characterized in that: The grabbing mechanism (2) comprises a frame member (21), two second linear guide rails (22) are arranged in parallel at the bottom of the frame member (21), grabbing hooks (23) are arranged at both ends of the two second linear guide rails (22) in a relatively slidable manner, a driving cylinder is fixed to the frame member (21), the telescopic end of the driving cylinder is connected to one of the grabbing hooks (23), the bottoms of the two grabbing hooks (23) are rotatably connected to synchronous connecting rods (24), the two synchronous connecting rods (24) are parallel and the other ends of the synchronous connecting rods (24) are respectively rotatably connected to the ends of the swing connecting rods (25), and the middle part of the swing connecting rod (25) is rotatably connected to the frame member (21).

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