Pallet inclination prevention device for pallet warehouse

Abstract

The utility model discloses a pallet inclination prevention device for a pallet warehouse, which comprises a pallet warehouse body, a supporting plate arranged below the pallet warehouse body, a driving cylinder for driving the supporting plate to move up and down, and conveying chains arranged on the left side and the right side of the supporting plate, and the left end and the right end of the supporting plate are respectively provided with a supporting seat parallel to the conveying direction of the conveying chains. An avoiding gap matched with a supporting foot in the middle of a pallet is formed between the two supporting seats, the upper ends of the two supporting seats are each provided with a set of idler wheels, the axes of the idler wheels are horizontally arranged and are perpendicular to the conveying direction of the conveying chain, the top ends of the idler wheels are higher than the top ends of the supporting seats, and driving motors driving the idler wheels to rotate are further arranged on the supporting seats. The pallet on the pallet storeroom supporting plate can be effectively prevented from inclining, and the pallet storeroom supporting plate can be widely applied to the field of pallet storeroom equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pallet storage and conveying equipment, in particular to a pallet bank anti-inclination device. BACKGROUND

[0002] Pallets (also known as pallets or cardboards) are a kind of logistics carrier for cargo loading, unloading, transportation and warehousing. They are usually flat platform structures, which are convenient for handling with forklifts, hydraulic vehicles and other equipment, and can effectively improve logistics efficiency and protect goods. Pallets have two support foot pallets and three support foot pallets. In factory production, three-foot pallets are usually selected because the middle part has one more support foot than two-foot pallets, and the bearing capacity is better.

[0003] The pallet bank is a device for stacking pallets and automatically taking out the pallets to convey them to the stacking station, and then neatly stacking the goods on the pallets. For example, a pallet separation conveyor disclosed in Chinese Patent Application No. 201521057946.8, which comprises a rack, a pallet storage bank, a push plate, a lifting device, a conveying device arranged on the rack, the lifting device comprises a pallet, an air pump, a push rod, etc., wherein the pallet is a flat plate structure. The above-mentioned flat plate structure of the pallet supports the lower end face of the two support foot pallet directly when lifting the two support foot pallet, and the contact area is large, which is very stable when the two support foot pallet moves up and down. However, when lifting the three support foot pallet, the upper plane of the pallet supports the lower end face of the middle support foot of the three-foot pallet, the contact area is small, and the two sides of the middle support foot are not supported, which makes the three-foot pallet easily tilt to both sides when moving up and down, causing the pallet to be stuck in the pallet bank, affecting the production efficiency. SUMMARY

[0004] The utility model aims at providing a pallet bank anti-inclination device to solve the problems mentioned in the background.

[0005] The utility model solves the technical problems by adopting the following technical scheme: a pallet bank anti-inclination device, comprising a pallet bank body, a pallet arranged at the lower end of the pallet bank body, a drive cylinder driving the pallet to move up and down, a conveying chain arranged on the left and right sides of the pallet, a support seat parallel to the conveying direction of the conveying chain arranged at the left and right ends of the pallet, an avoiding gap adapted to the middle support foot of the pallet formed between the two support seats, a group of rollers arranged at the upper end of the two support seats, the shaft of the roller is horizontally arranged and perpendicular to the conveying direction of the conveying chain, and the top end of the roller is higher than the top end of the support seat, and a drive motor driving the roller to rotate is arranged on the support seat.

[0006] Furthermore, the support base includes a pair of symmetrically arranged support plates, with an installation gap between the two support plates that is adapted to the roller. A set of roller mounting holes are symmetrically arranged on the two support plates. The roller includes a roller shaft and a roller body disposed on the roller shaft. The roller shaft is mounted in the roller mounting hole, and the drive motor drives the roller shaft to rotate.

[0007] To ensure that the left and right sets of rollers rotate synchronously, a synchronous transmission device is provided between the two sets of rollers. The synchronous transmission device includes a driven gear set on the roller shaft, a driving gear set side by side with the driven gear, a transmission chain between the driven gear and the driving gear, and a linkage shaft between the two sets of driving gears. The output end of the drive motor is fixedly connected to one end of the linkage shaft.

[0008] Preferably, the drive cylinder is located below the pallet, the pallet is located on the telescopic part of the drive cylinder, and the pallet storage body is also provided with a lifting auxiliary device.

[0009] To ensure the stability of the pallet's vertical movement, the lifting auxiliary device includes an auxiliary plate located below the pallet and a set of auxiliary supports for fixing the auxiliary plate to the pallet storage body. The auxiliary plate is provided with a drive cylinder clearance hole, and a set of auxiliary rods that can move up and down with the pallet are fixedly provided at the lower end of the pallet. The auxiliary plate is provided with a set of auxiliary rod through holes, and an auxiliary guide sleeve adapted to the auxiliary rod is fixedly provided in the auxiliary rod through holes.

[0010] The beneficial effects of this invention are as follows: This invention uses two sets of rollers to support the lower surfaces of the pallet located on either side of the central support foot. This prevents the pallet from tilting and getting stuck inside the pallet storage unit during the descent of the pallet and the pallet on it, as the drive cylinder lowers the pallet. When the pallet reaches its lowest position, if the two side support feet of the pallet cannot land on the conveyor chain, the drive motor rotates the rollers in the direction of the conveyor chain, causing the pallet on the rollers to slide onto the conveyor chain, which then carries the pallet forward. This invention can smoothly support not only three-support-foot pallets but also two-support-foot pallets. Simultaneously, the drive motor drives the linkage shaft to rotate, and the two transmission chains connected to the two drive gears on the linkage shaft drive the two sets of driven gears on the left and right sides to rotate synchronously, thus ensuring that the rollers rotate synchronously and preventing the pallet on the rollers from tilting due to the difference in speed between the two sets of rollers. Meanwhile, the auxiliary rod and auxiliary guide sleeve of the auxiliary device work together to guide the pallet when it is raised and lowered, ensuring that the pallet moves up and down in a straight line and will not tilt due to the weight of the pallet, thus ensuring the stability of the movement.

[0011] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a right view of the present invention assembled on the pallet storage body.

[0013] Figure 2 This is a right view of the synchronous transmission device in this utility model.

[0014] Figure 3 This is a perspective view of the present invention.

[0015] Figure 4 This is a rear view of the support plate and roller assembly holes in this utility model.

[0016] Figure 5 This is a rear view of the roller and synchronous transmission device in this utility model.

[0017] Figure 6 This is a cross-sectional view of the lifting auxiliary device in this utility model.

[0018] Figure 7 This is a top view of the assembly of the pallet and the conveyor chain in this utility model.

[0019] Figure 8 This is a schematic diagram showing the supporting feet of the pallet resting on the conveyor chain when the pallet descends to its lowest point in this utility model.

[0020] Figure 9 This is a schematic diagram showing that when the pallet descends to its lowest point, the supporting foot of the pallet fails to land on the conveyor chain.

[0021] Figure 10 This is a schematic diagram of a roller supporting two foot-type pallets in this utility model. Detailed Implementation

[0022] like Figures 1 to 10As shown, an anti-tipping device for a pallet storage facility includes a pallet storage body 1 for stacking pallets, a tray 2 disposed at the lower end of the pallet storage body 1, a drive cylinder 3 for moving the tray 2 up and down, and a conveyor chain 8 disposed on the pallet storage body 1 and located on the left and right sides of the tray 2. The pallet is a three-legged pallet 30, including a support plate 301, a support leg 302 disposed at the center of the lower end face 3011 of the support plate, and two support legs 302 disposed on both sides of the lower end face 3011 of the support plate. The pallet 2 is provided with a support seat 4 at each of its left and right ends, which is parallel to the conveying direction of the conveyor chain 8. A clearance gap 10 is formed between the two support seats 4 to match the middle support foot 302 of the pallet. A set of rollers 5 is provided on the upper end of each of the two support seats 4. The axis of the rollers 5 is horizontally set and perpendicular to the conveying direction of the conveyor chain 8. The top of the rollers 5 is higher than the top of the support seat 4, and the distance from the top of the rollers 5 to the upper surface of the pallet 2 is greater than the distance from the lower surface of the support plate 3011 to the lower surface of the support foot 302, so that the top of the rollers 5 can rest on the lower surface of the support plate 3011. A drive motor 6 for driving the rollers 5 to rotate is also provided on the support seat 4. When the drive cylinder 3 moves the pallet 2 to remove the bottom pallet from the pallet storage body 1, the upper end face of the roller 5 supports the lower end face 3011 of the pallet located on both sides of the middle support foot 302 of the pallet. The support of the left and right sets of rollers 5 ensures that the pallet 2 will not tilt left or right when it lifts the pallet downwards, preventing the pallet from getting stuck in the pallet storage body 1. Since there will be differences in the height of the support feet 302 on each pallet, to prevent the support feet 302 on both sides of the pallet from not landing on the conveyor chain 8 when the pallet 2 descends to the lowest position, the drive motor 6 drives the roller 5 to rotate in the same direction as the conveyor chain 8. By rotating the roller 5, the pallet placed on the roller 5 is conveyed in the conveyor chain 8 and slides onto the conveyor chain 8, and then the pallet is conveyed by the conveyor chain 8. The improvement of this utility model does not affect the stability of lifting the two-legged pallet 40. When the pallet stacked in the pallet storage body 1 is a two-legged pallet 40, the two sets of rollers 5 support the lower end surfaces of the two-legged pallet 40 on the left and right, respectively, and then lift the two-legged pallet 40 downwards. This utility model can not only stably lift three-legged pallets, but also stably lift two-legged pallets. It should be noted that the pallet storage body 1 and the conveyor chain 8 are existing technologies and will not be described in detail here.

[0023] The assembly structure of the roller 5 is as follows: the support base 4 includes a pair of symmetrically arranged support plates 41, and an installation gap 20 adapted to the roller 5 is formed between the two support plates 41. A set of roller mounting holes 411 are symmetrically arranged on the two support plates 41. The roller 5 includes a roller shaft 51 and a roller body 52 arranged on the roller shaft 51. The roller 5 is assembled in the roller mounting hole 411 through the roller shaft 51. The drive motor 6 drives the roller shaft 5 to rotate.

[0024] To ensure synchronous rotation of the left and right sets of rollers 5 and prevent tilting of the pallet during forward transport due to different rotational speeds, a synchronous transmission device 53 is provided between the two sets of rollers 5. The synchronous transmission device 53 includes a driven gear 531 mounted on the roller shaft 51, a driving gear 532 arranged parallel to the driven gear 531, a transmission chain 533 between the driven gear 531 and the driving gear 532, and a linkage shaft 534 between the two sets of driving gears 532. The linkage shaft 534 is rotatably mounted on the pallet 2 via a set of bearing seats 5341. The output end of the drive motor 6 is fixedly connected to one end of the linkage shaft 533, and the drive motor 6 is fixed to the pallet 2 via a motor seat 61. The drive motor 6 drives the linkage shaft 534 to rotate, and the linkage shaft 534, through the cooperation of the driving gear 532, the transmission chain 533, and the driven gear 531, drives the rollers to rotate synchronously.

[0025] To ensure the stability of the pallet 2's vertical movement, the drive cylinder 3 is vertically fixed on the pallet storage body 1 and located below the pallet 2. The lower end of the pallet 2 is fixedly mounted on the telescopic part of the drive cylinder 3. The vertical movement of the telescopic part of the drive cylinder 3 drives the pallet 2 to move up and down. The pallet storage body 1 is also equipped with a lifting auxiliary device 7. The lifting auxiliary device 7 includes an auxiliary plate 71 disposed below the pallet 2 and a set of auxiliary supports 72 for fixing the auxiliary plate 71 to the pallet storage body 1. The auxiliary plate 71 is provided with a drive cylinder clearance hole 712. The telescopic part of the drive cylinder 3 passes through the drive cylinder clearance hole 712 and is fixedly connected to the pallet 2. An auxiliary rod 73 is fixedly disposed at each of the four corners of the lower end of the pallet 2, which moves up and down with the pallet 2. The auxiliary plate 71 is provided with a set of auxiliary rod through holes 711. An auxiliary guide sleeve 74 adapted to the auxiliary rod 73 is fixedly disposed in the auxiliary rod through hole 711, and the auxiliary rod 73 passes through the auxiliary guide sleeve 74. When the drive cylinder 3 drives the pallet 2 to move up and down to lift the pallets stacked on the pallet storage body 1, the auxiliary rod 73 and the auxiliary guide sleeve 74 cooperate to ensure that the pallet 2 does not tilt and moves up and down in a straight line, thereby ensuring the stability of the movement.

[0026] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A pallet tilting prevention device for a pallet storage facility, comprising a pallet storage body (1), a pallet (2) disposed at the lower end of the pallet storage body (1), a drive cylinder (3) for moving the pallet (2) up and down, and conveyor chains (8) disposed on the left and right sides of the pallet (2), characterized in that: The left and right ends of the supporting plate (2) are respectively provided with a support seat (4) parallel to the conveying direction of the conveying chain (8), the two support seats (4) form an avoiding gap (10) adapted to the middle supporting foot of the pallet, the upper ends of the two support seats (4) are respectively provided with a set of rollers (5), the shafts of the rollers (5) are horizontally arranged and perpendicular to the conveying direction of the conveying chain (8), and the top ends of the rollers (5) are higher than the top ends of the support seats (4), and the support seats (4) are further provided with a driving motor (6) for driving the rollers (5) to rotate.

2. A pallet tilt guard for a pallet storage as claimed in claim 1, characterized in that: The support seat (4) comprises a pair of symmetrical supporting vertical plates (41), the two supporting vertical plates (41) form an installation gap (20) adapted to the rollers (5), a set of roller assembly holes (411) are symmetrically arranged on the two supporting vertical plates (41), the roller (5) comprises a roller shaft (51) and a roller body (52) arranged on the roller shaft (51), the roller shaft (51) is assembled in the roller assembly hole (411), and the driving motor (6) drives the roller shaft (51) to rotate.

3. A pallet tipper prevention device for a pallet storage as claimed in claim 2, wherein: Synchronous transmission devices (53) are arranged between the two sets of rollers (5), the synchronous transmission devices (53) comprise driven gears (531) arranged on the roller shafts (51), driving gears (532) arranged side by side with the driven gears (531), transmission chains (533) arranged between the driven gears (531) and the driving gears (532), and linkage shafts (534) arranged between the two sets of driving gears (532), and one end of the linkage shaft (534) is fixedly connected with the output end of the driving motor (6).

4. The pallet tilt guard for a pallet storage facility as claimed in claim 1, wherein: The driving cylinder (3) is arranged below the supporting plate (2), the supporting plate (2) is arranged on the telescopic part of the driving cylinder (3), and the pallet library body (1) is further provided with a lifting auxiliary device (7).

5. A pallet tipper prevention device for a pallet storage as claimed in claim 4, wherein: The lifting auxiliary device (7) comprises an auxiliary plate (71) arranged below the supporting plate (2), and a set of auxiliary supports (72) for fixing the auxiliary plate (71) on the pallet library body (1), the auxiliary plate (71) is provided with a driving cylinder avoiding hole (712), the lower end of the supporting plate (2) is fixedly provided with a set of auxiliary rods (73) capable of moving up and down with the supporting plate (2), the auxiliary plate (71) is provided with a set of auxiliary rod through holes (711), and the auxiliary rod through holes (711) are fixedly provided with auxiliary guide sleeves (74) adapted to the auxiliary rods (73).

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