Tray stacking apparatus

Abstract

The utility model relates to a tray stacking equipment, tray stacking equipment includes frame, elevating system and clamping mechanism, elevating system sets up in the frame, clamping mechanism sets up in the frame, and includes support piece and sets up in the first clamping arm and second clamping arm of support piece, and first clamping arm and second clamping arm can be relatively close to hold tray or relatively far apart to release tray, and support piece links to each other with the output end of elevating system to drive first clamping arm and second clamping arm relative frame elevating. The above-mentioned tray stacking equipment, relatively close or far apart first clamping arm and second clamping arm can adapt to different size tray, need not to purchase special stacking equipment or to the existing equipment to carry out the reform for different size tray, reduced the equipment's purchase and maintenance cost, improved the equipment's versatility.

Description

Technical Field

[0001] This utility model relates to the field of automated production line equipment technology, and in particular to a pallet stacking device. Background Technology

[0002] In logistics warehousing and automated production lines, pallets are generally used for carrying and transferring goods, while pallet stacking equipment is used to stack multiple pallets to improve pallet storage efficiency and save warehouse space. However, existing stacking equipment is mostly designed for single-size pallets. When automated production lines need to handle pallets of different sizes, companies often need to purchase dedicated stacking equipment for different sizes of pallets or modify existing equipment, which leads to a significant increase in equipment purchase and maintenance costs. Utility Model Content

[0003] This utility model provides a pallet stacking device to improve the versatility of pallet stacking devices.

[0004] A pallet stacking device, comprising: frame; A lifting mechanism is provided on the frame; and A clamping mechanism is disposed on the frame and includes a support member and a first clamping arm and a second clamping arm disposed on the support member. The first clamping arm and the second clamping arm can be relatively close to each other to clamp the tray or relatively far apart to release the tray. The support member is linked with the output end of the lifting mechanism to drive the first clamping arm and the second clamping arm to lift relative to the frame.

[0005] In one embodiment, the clamping mechanism includes a first driving member and a second driving member connected to the support member, wherein the output end of the first driving member is linked to the first clamping arm, and the output end of the second driving member is linked to the second clamping arm.

[0006] In one embodiment, the clamping mechanism includes a first guide rod and a second guide rod connected to the support member, the first clamping arm being slidably engaged with the first guide rod to move along the first guide rod, and the second clamping arm being slidably engaged with the second guide rod to move along the second guide rod, the first guide rod and the second guide rod being spaced apart from each other on the support member.

[0007] In one embodiment, in the lifting direction of the clamping mechanism, two first guide rods are spaced apart and arranged in parallel, and two second guide rods are spaced apart and arranged in parallel.

[0008] In one embodiment, the clamping mechanism includes a first limiting member connected to the first guide rod and the support member, and a second limiting member connected to the second guide rod and the support member. The first limiting member is provided at opposite ends of the first guide rod to limit the range of movement of the first clamping arm, and the second limiting member is provided at opposite ends of the second guide rod to limit the range of movement of the second clamping arm.

[0009] In one embodiment, the first clamping arm includes a carrier and a lifting piece disposed on the carrier. The carrier is linked to the output end of the first drive member, and the carrier is slidably engaged with the first guide rod. The lifting piece is used to insert into the transport hole of the tray.

[0010] In one embodiment, the lifting plate includes an integrally formed alignment portion and a lifting portion, the alignment portion being connected to the carrier and extending along the lifting direction of the clamping mechanism, and the lifting portion being perpendicular to the lifting direction.

[0011] In one embodiment, the lifting mechanism includes a third drive member and a guide rail connected to the frame. The guide rail extends along the lifting direction of the clamping mechanism, and the support member slides with the guide rail. The third drive member is used to drive the support member to move along the guide rail.

[0012] In one embodiment, the pallet stacking device includes a first safety railing and a second safety railing disposed opposite to each other, the first safety railing and the second safety railing being connected to the same side of the frame, and the first clamping arm and the second clamping arm being disposed between the first safety railing and the second safety railing.

[0013] In one embodiment, the lifting mechanism includes two limit switches connected to the frame. The two limit switches are spaced apart along the lifting direction of the clamping mechanism and are used to limit the range of movement of the support member as it moves along the guide rail.

[0014] The pallet stacking equipment described above includes a frame, a lifting mechanism, and a clamping mechanism. The lifting mechanism and the clamping mechanism are both mounted on the frame and include a support member and a first clamping arm and a second clamping arm mounted on the support member. The first and second clamping arms can move relatively close to each other to clamp the pallet or relatively far apart to release the pallet. The support member is linked to the output end of the lifting mechanism to drive the first and second clamping arms to move up and down relative to the frame. The pallet stacking equipment described above, with its adjustable first and second clamping arms, can accommodate pallets of different sizes, eliminating the need to purchase dedicated stacking equipment for different pallet sizes or modify existing equipment. This reduces the procurement and maintenance costs of pallet stacking equipment and improves its versatility. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a pallet stacking device according to one embodiment; Figure 2 for Figure 1 The diagram shows the interaction between the pallet stacking device and the pallet. Figure 3 for Figure 1 A schematic diagram of the pallet stacking device from another perspective; Figure 4 for Figure 1 A schematic diagram of the first clamping arm of the pallet stacking device shown; Figure 5 for Figure 1 A schematic diagram of the first limiting member of the pallet stacking device shown; Figure 6 for Figure 1 A schematic diagram of the lifting plates of the pallet stacking device shown; Figure 7 for Figure 3 An enlarged schematic diagram of part A of the pallet stacking device shown.

[0017] Figure label: 10. Pallet stacking equipment; 11. Frame; 111. Fixing part; 112. Fixing groove; 113. Fixing hole; 12. Lifting mechanism; 121. Third drive component; 122. Guide rail; 123. Transmission rod; 124. Gear; 125. Limit switch; 13. Clamping mechanism; 131. Support component; 132. First clamping arm; 132a. Mounting hole; 1321. Bearing component; 13211. Fixing arm; 13212. Extension arm; 1322. Lifting plate; 13221 13222 Alignment part; 13223 Lifting part; 13224 Connecting part; 13225 Fastening cover; 13226 Receiving groove; 133 Second clamping arm; 134 First driving member; 135 Second driving member; 136 First guide rod; 137 Second guide rod; 138 First limiting member; 1381 First connecting hole; 1382 Second connecting hole; 139 Second limiting member; 14 First safety guardrail; 15 Second safety guardrail; 20 Pallet; 21 Handling hole. Detailed Implementation

[0018] The following detailed description of preferred embodiments is a preferred mode for carrying out the invention. This description is not intended to be limiting; it is provided to illustrate the general principles of the invention.

[0019] It should be understood that, for ease of understanding of the present invention, the terms "installation," "connection," "coupling," and "installation" in the following description refer to the connection relationships shown in the drawings. For example, "connection" can refer to a permanent connection or a detachable connection. Furthermore, "connection" can also refer to a direct connection or an indirect connection, or a connection via other auxiliary components. Therefore, the above terms should not be construed as limiting the actual connections of the various elements of the present invention.

[0020] It should be understood that the terms "length," "width," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "upper," "lower," "external," and "internal" refer to the orientation or positioning relationship in the accompanying drawings to facilitate understanding of the invention, but do not limit the actual location or orientation of the invention. Therefore, the above terms should not be construed as limiting the actual location of the various elements of the invention.

[0021] It should be understood that the terms "first," "second," "an," "a," and "one" in the following description refer to "at least one" or "one or more" in the embodiments. In particular, the term "a" may refer to "one" in one embodiment and "more than one" in another embodiment. Therefore, the above terms should not be construed as limiting the actual number of elements of the present invention.

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0023] refer to Figure 1 This utility model discloses a pallet stacking device 10, which can be used to stack multiple pallets 20 to improve the storage efficiency of the pallets 20 and save storage space.

[0024] refer to Figure 1 and Figure 2The pallet stacking device 10 may include a frame 11, a lifting mechanism 12, and a clamping mechanism 13. The lifting mechanism 12 is disposed on the frame 11. The clamping mechanism 13 is disposed on the frame 11 and includes a support member 131 and a first clamping arm 132 and a second clamping arm 133 disposed on the support member 131. The first clamping arm 132 and the second clamping arm 133 can be relatively close to each other to clamp the pallet 20 or relatively far apart to release the pallet 20. The support member 131 is linked with the output end of the lifting mechanism 12 to drive the first clamping arm 132 and the second clamping arm 133 to rise and fall relative to the frame 11, thereby realizing the sequential stacking of multiple pallets 20. The pallet stacking device 10 described above allows for varying distances between the first clamping arm 132 and the second clamping arm 133, which can be relatively close to or far from each other, thus making it suitable for pallets 20 of different sizes. This eliminates the need to purchase dedicated stacking equipment for pallets 20 of different sizes or to modify existing equipment, reducing the procurement and maintenance costs of the pallet stacking device 10 and improving its versatility. After the clamping mechanism 13 clamps the pallet 20, the lifting mechanism 12 drives the clamping mechanism 13 and the pallet 20 on it to rise and fall, thereby enabling the sequential stacking of multiple pallets 20 and improving ease of use.

[0025] refer to Figure 1 and Figure 3 In some embodiments, the clamping mechanism 13 includes a first drive member 134 and a second drive member 135 connected to the support member 131. The output end of the first drive member 134 is linked to the first clamping arm 132, and the output end of the second drive member 135 is linked to the second clamping arm 133. In some embodiments, the first drive member 134 and the second drive member 135 can be cylinders. The output end of the first drive member 134 is connected to the first clamping arm 132 to drive the first clamping arm 132 to move in the clamping direction, and the output end of the second drive member 135 is connected to the second clamping arm 133 to drive the second clamping arm 133 to move in the clamping direction. The driving directions of the output ends of the first drive member 134 and the second drive member 135 can be opposite to achieve relative proximity or relative distance between the first clamping arm 132 and the second clamping arm 133.

[0026] refer to Figure 1 , Figure 3 , Figure 4 and Figure 5In some embodiments, the clamping mechanism 13 includes a first guide rod 136 and a second guide rod 137 connected to the support member 131. A first clamping arm 132 is slidably engaged with the first guide rod 136 to move along the first guide rod 136, and a second clamping arm 133 is slidably engaged with the second guide rod 137 to move along the second guide rod 137. The first guide rod 136 and the second guide rod 137 are spaced apart on the support member 131 in the clamping direction. In some embodiments, in the lifting direction of the clamping mechanism 13, two first guide rods 136 and two second guide rods 137 may be spaced apart and parallel on the support member 131. Specifically, as shown... Figure 1 As shown, taking the first guide rod 136 and the first clamping arm 132 as an example, in the lifting direction, two cylindrical first guide rods 136 can be provided and arranged in parallel. The first clamping arm 132 has mounting holes 132a that match the first guide rods 136. The first guide rods 136 pass through the mounting holes 132a of the first clamping arm 132 and slide in cooperation with the first clamping arm 132. The cooperation structure between the second clamping arm 133 and the second guide rod 137 can be the same as the cooperation structure between the first guide rod 136 and the first clamping arm 132.

[0027] Furthermore, the clamping mechanism 13 includes a first limiting member 138 connected to the first guide rod 136 and the support member 131, and a second limiting member 139 connected to the second guide rod 137 and the support member 131. The first limiting member 138 is provided at opposite ends of the first guide rod 136 to limit the movement range of the first clamping arm 132, and the second limiting member 139 is provided at opposite ends of the second guide rod 137 to limit the movement range of the second clamping arm 133. Specifically, as... Figure 5As shown, taking the first limiting member 138 as an example, the first limiting member 138 can be in the shape of a hollow triangular prism. One side wall of the first limiting member 138 can be provided with a first connecting hole 1381, and the other adjacent side wall is provided with a second connecting hole 1382. The first connecting hole 1381 is used to pass through bolts or other fasteners to connect with the support member 131, and the second connecting hole 1382 is used to pass through bolts or other fasteners to connect with the first guide rod 136. During the assembly of the clamping mechanism 13, the two first limiting members 138 are respectively set at both ends of the first guide rod 136 to fix the first guide rod 136 to the support member 131. Because the first clamping arm 132 is sleeved on the first guide rod 136 through the mounting hole 132a, the first limiting members 138 set at both ends of the first guide rod 136 prevent the first clamping arm 132 from detaching from the first guide rod 136, thereby limiting the range of movement of the first clamping arm 132. The mating structure between the second limiting member 139 and the second guide rod 137 can be the same as the mating structure between the first limiting member 138 and the first guide rod 136. In some embodiments, lubricating oil can be applied to the sliding engagement points of the first guide rod 136 and the first clamping arm 132, and the sliding engagement points of the second guide rod 137 and the second clamping arm 133 to reduce friction and prevent excessive friction at the sliding connection points from causing structural wear and affecting the stable operation of the overall pallet stacking device 10.

[0028] In logistics warehousing and automated production lines, pallets 20 typically have handling holes 21 on opposite sides for transport equipment to clamp and transport. The handling holes 21 on opposite sides of pallets 20 can be connected to facilitate the transport of equipment such as trucks and stackers after insertion.

[0029] refer to Figure 1 and Figure 4 In some embodiments, the first clamping arm 132 includes a carrier 1321 and a lifting piece 1322 disposed on the carrier 1321. The carrier 1321 is linked to the output end of the first drive member 134, and the carrier 1321 is slidably engaged with the first guide rod 136. The lifting piece 1322 is used to insert into the transport hole 21 of the tray 20. Specifically, as shown... Figure 4As shown, the support member 1321 can be L-shaped and may include a fixed arm 13211 and an extension arm 13212 perpendicular to each other. The length of the extension arm 13212 is greater than the length of the fixed arm 13211. The fixed arm 13211 has a mounting hole 132a for sliding engagement with the first guide rod 136. A lifting piece 1322 is disposed on the extension arm 13212 for clamping and lifting the tray 20 to be clamped. In some embodiments, the fixed arm 13211 and the extension arm 13212 may be hollow to reduce the weight of the first clamping arm 132. The connection between the fixed arm 13211 and the extension arm 13212 may be reinforced with reinforcing ribs. Further, the material of the support member 1321 of the first clamping arm 132 may be an alloy material, such as aluminum alloy, to ensure the load-bearing strength of the first clamping arm 132. The structure of the support member 1321 of the second clamping arm 133 may be the same as that of the first clamping arm 132, and will not be described in detail here.

[0030] refer to Figure 1 , Figure 2 , Figure 4 and Figure 6 In some embodiments, the lifting piece 1322 includes an integrally formed alignment portion 13221 and a lifting portion 13222. The alignment portion 13221 is connected to the carrier 1321 and extends along the lifting direction of the clamping mechanism 13, ensuring that the edges of the stacked pallets 20 are substantially flush on the same side when the pallets 20 are stacked, preventing the pallets 20 from tilting or misaligning. The lifting portion 13222 is perpendicular to the lifting direction and extends along the clamping direction, for engaging with the transport hole 21 of the pallet 20. Figure 6 As shown, the alignment portion 13221 and the lifting portion 13222 can be L-shaped, and the length of the lifting portion 13222 can be less than the length of the alignment portion 13221. The lifting piece 1322 may also include a connecting portion 13223 disposed on the side of the alignment portion 13221 opposite to the tray 20, and a fastening cover 13224 connected to the connecting portion 13223. The connecting portion 13223 may be integrally formed on the alignment portion 13221. The fastening cover 13224 and the connecting portion 13223 may form a receiving groove 13225. The receiving groove 13225 is used to receive the extension arm 13212. When the lifting piece 1322 is sleeved on the extension arm 13212 through the receiving groove 13225, the fastening cover 13224 may press against the extension arm 13212 to fix the lifting piece 1322 to the extension arm 13212.

[0031] refer to Figure 1 , Figure 2 and Figure 7In some embodiments, the lifting mechanism 12 includes a third drive member 121 and a guide rail 122 connected to the frame 11. The guide rail 122 extends along the lifting direction of the clamping mechanism 13, and the support member 131 is slidably engaged with the guide rail 122. The third drive member 121 is used to drive the support member 131 to move along the guide rail 122. Specifically, as Figure 3 As shown, the lifting mechanism 12 may include a transmission rod 123 linked to the third driving member 121, and a gear 124 linked to the transmission rod 123. The gear 124 and the transmission rod 123 may be connected to the support member 131 by a chain, so as to realize the movement of the support member 131 in the lifting direction and ensure the stability of the transmission. In the lifting direction, the frame 11 has two fixed parts 111 arranged opposite to each other. The fixed parts 111 have fixed grooves 112, and the two fixed parts 111 are fitted onto the two ends of the guide rail 122 one by one through the fixed grooves 112. Further, the fixed parts 111 may have fixed holes 113, and the guide rail 122 has through holes (not shown) that match the fixed holes 113. After the fixed holes 113 match the through holes of the guide rail 122, the guide rail 122 can be fixed to the frame 11 by threaded fasteners such as bolts and nuts to prevent the guide rail 122 from moving.

[0032] Furthermore, the lifting mechanism 12 may include two limit switches 125 connected to the frame 11. The two limit switches 125 are spaced apart along the lifting direction of the clamping mechanism 13 and are used to limit the movement range of the support member 131 as it moves along the guide rail 122. The limit switches 125 may be micro-limit switches 125. When the support member 131 reaches the position of the limit switch 125 along the guide rail 122, it will press the contact of the limit switch 125, causing its internal contacts to open or close, cutting off the control circuit of the third drive member 121 or triggering an alarm, thus preventing the support member 131 from colliding with other structures due to exceeding its movement range. Specific embodiments of the limit switches 125 have been fully disclosed in the prior art and will not be described in detail here.

[0033] During the stacking process of the clamping mechanism 13, the pallet 20 can be moved to the stacking position by a conveyor belt, etc. The first driving member 134 drives the first clamping arm 132, and the second driving member 135 drives the second clamping arm 133 to first move away from each other to correspond to the transport hole 21 of the pallet 20, and then move closer to each other to insert into the transport holes 21 on opposite sides of the pallet 20. The lifting parts 13222 of the first clamping arm 132 and the second clamping arm 133 cooperate with the transport hole 21 of the pallet 20 to clamp the pallet 20. After the first clamping arm 132 and the second clamping arm 133 clamp the pallet 20, the lifting mechanism 12 can rise in the lifting direction. After another pallet 20 enters the stacking position, the lifting mechanism 12 descends in the lifting direction and places the clamped pallet 20 on top of the other pallet 20. The first clamping arm 132 and the second clamping arm 133 move away from each other and release the pallet 20 to complete the stacking. When it is necessary to continue stacking pallets 20, the support member 131 can descend along the lifting direction to the bottom pallet 20 and repeat the above-mentioned action steps until a predetermined number is stacked. The number of pallets to be stacked can be detected by setting a sensor, such as a photoelectric sensor, on the pallet stacking device 10 to achieve the corresponding function.

[0034] refer to Figure 1 , Figure 2 , Figure 3 In some embodiments, the pallet stacking device 10 includes a first safety guardrail 14 and a second safety guardrail 15 disposed opposite to each other, the first safety guardrail 14 and the second safety guardrail 15 being connected to the same side of the frame 11, and a first clamping arm 132 and a second clamping arm 133 being disposed between the first safety guardrail 14 and the second safety guardrail 15. Figure 1 As shown, the first safety guardrail 14 and the second safety guardrail 15 are connected to the frame 11. The first safety guardrail 14 is spaced apart from the first clamping arm 132 on the same side, and the second safety guardrail 15 is spaced apart from the second clamping arm 133 on the same side. The distance between the first safety guardrail 14 and the second safety guardrail 15 is greater than the maximum distance between the first clamping arm 132 and the second clamping arm 133, preventing the first safety guardrail 14 and the second safety guardrail 15 from interfering with the operation of the first clamping arm 132 and the second clamping arm 133. When the pallet stacking equipment 10 is in operation, the first safety guardrail 14 and the second safety guardrail 15 can prevent workers from accidentally putting their arms or other parts into the working range of the pallet stacking equipment 10, thus preventing safety accidents and improving the safety of the pallet stacking equipment 10.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pallet stacking device, characterized in that, include: frame; A lifting mechanism is installed on the frame; as well as A clamping mechanism is disposed on the frame and includes a support member and a first clamping arm and a second clamping arm disposed on the support member. The first clamping arm and the second clamping arm can be relatively close to each other to clamp the tray or relatively far apart to release the tray. The support member is linked with the output end of the lifting mechanism to drive the first clamping arm and the second clamping arm to lift relative to the frame.

2. The pallet stacking device according to claim 1, characterized in that, The clamping mechanism includes a first driving member and a second driving member connected to the support member. The output end of the first driving member is linked to the first clamping arm, and the output end of the second driving member is linked to the second clamping arm.

3. The pallet stacking device according to claim 2, characterized in that, The clamping mechanism includes a first guide rod and a second guide rod connected to the support member. The first clamping arm is slidably engaged with the first guide rod to move along the first guide rod, and the second clamping arm is slidably engaged with the second guide rod to move along the second guide rod. The first guide rod and the second guide rod are spaced apart on the support member.

4. The pallet stacking device according to claim 3, characterized in that, In the lifting direction of the clamping mechanism, two first guide rods are spaced apart and the two first guide rods are arranged in parallel, and two second guide rods are spaced apart and the two second guide rods are arranged in parallel.

5. The pallet stacking device according to claim 3, characterized in that, The clamping mechanism includes a first limiting member connected to the first guide rod and the support member, and a second limiting member connected to the second guide rod and the support member. The first limiting member is provided at each of the opposite ends of the first guide rod to limit the movement range of the first clamping arm, and the second limiting member is provided at each of the opposite ends of the second guide rod to limit the movement range of the second clamping arm.

6. The pallet stacking device according to claim 3, characterized in that, The first clamping arm includes a carrier and a lifting piece disposed on the carrier. The carrier is linked to the output end of the first drive member, and the carrier is slidably engaged with the first guide rod. The lifting piece is used to insert into the transport hole of the tray.

7. The pallet stacking device according to claim 6, characterized in that, The lifting plate includes an integrally formed alignment portion and a lifting portion. The alignment portion is connected to the carrier and extends along the lifting direction of the clamping mechanism, while the lifting portion is perpendicular to the lifting direction.

8. The pallet stacking device according to any one of claims 1-7, characterized in that, The lifting mechanism includes a third drive member and a guide rail connected to the frame. The guide rail extends along the lifting direction of the clamping mechanism. The support member slides with the guide rail. The third drive member is used to drive the support member to move along the guide rail.

9. The pallet stacking device according to claim 8, characterized in that, The pallet stacking device includes a first safety railing and a second safety railing arranged opposite to each other, the first safety railing and the second safety railing being connected to the same side of the frame, and the first clamping arm and the second clamping arm being disposed between the first safety railing and the second safety railing.

10. The pallet stacking device according to claim 8, characterized in that, The lifting mechanism includes two limit switches connected to the frame. The two limit switches are spaced apart along the lifting direction of the clamping mechanism and are used to limit the range of movement of the support member as it moves along the guide rail.

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