Pallet folding machine, pallet supply device and goods pallet replacement equipment

Abstract

The utility model discloses a pallet folding and unfolding machine, a pallet supply device and goods pallet replacing equipment, the pallet folding and unfolding machine comprises two frames which are arranged in a spaced mode, and each frame is provided with an electric telescopic fork which can move up and down along a vertically-extending track. A movable fork moving in a reciprocating mode in the first direction is arranged at the bottom of a lifting frame of the electric telescopic fork, the movable fork comprises two fork plates which are spaced and extend in the first direction, and the movable fork is connected with a driving motor through a gear and rack transmission mechanism located on one side of the movable fork. The two electric telescopic forks are driven by a chain driving mechanism to ascend and descend along the rails, the chain driving mechanism is provided with only one motor and comprises two driving chains, the two ends of each driving chain are connected to a lifting frame, each driving chain is sleeved with two chain wheels, one chain wheel is located at the top of the frame, and the other chain wheel is located at the bottom of the frame. A sprocket is located at the bottom of the frame. According to the utility model, the power source is less, and the equipment cost and the operation cost are lower.

Description

Technical Field

[0001] The utility model relates to the field of logistics equipment, in particular to a pallet destacking machine, a pallet supply device and cargo pallet exchanging equipment. Background Art

[0002] In the process of logistics transportation, it is often necessary to transport items on pallets. In order to facilitate the storage and transportation of pallets, pallets usually need to be stacked into piles. Therefore, when the pallets are used, they need to be disassembled by a destacker.

[0003] Authorization publication number CN109607214B ​​discloses a destacking device. This structure achieves destacking by telescoping and lifting four supports. However, each support requires an independent power source to drive the telescopic components. This increases the number of power sources and increases equipment and operating costs. Utility Model Content

[0004] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a pallet unpacking machine, a pallet supply device and a cargo pallet changing device.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The pallet destacking machine includes two frames with gaps, each of the frames is provided with an electric telescopic fork that can move up and down along a vertically extending track, and the bottom of the lifting frame of the electric telescopic fork is provided with a moving fork that moves back and forth along a first direction, and the first direction is the distribution direction of the two frames. The moving fork includes two fork plates with gaps and extending along the first direction, and the moving fork is connected to a drive motor through a gear rack transmission mechanism located on one side of the moving fork. The two electric telescopic forks are driven to rise and fall along the track by a chain drive mechanism, and the chain drive mechanism has only one motor. The chain drive mechanism includes two drive chains, and both ends of each drive chain are connected to a lifting frame, and each drive chain is mounted on two sprockets, one sprocket is located at the top of the frame, and the other sprocket is located at the bottom of the frame.

[0007] Preferably, an upper sealing plate and a lower sealing plate are detachably provided on opposite sides of the two frames.

[0008] Preferably, a door is provided between the upper sealing plate and the lower sealing plate and is located at a middle height of the frame.

[0009] Preferably, the lower sealing plate includes two side plates and a main baffle, the two side plates include an L-shaped frame connecting plate and a side support plate, the outer edge of the side support plate includes an arc segment extending outward and downward from the frame connecting plate and a vertical segment connected below the arc segment, the main baffle includes a main board component matching the extension of the side support plate and a connecting plate component connected above the main board component, and both ends of the connecting plate component extend above the two frame connecting plates.

[0010] Preferably, two groove handles arranged at the same height are respectively provided on the upper sealing plate and the main plate.

[0011] Preferably, a shaping stopper is provided on the plug board.

[0012] Preferably, the shaping stopper can be arranged on the plug plate so as to adjust its position along the first direction.

[0013] Preferably, both ends of the drive chain are connected to connecting screws respectively, and the two connecting screws are coaxially arranged in the middle position of the lifting frame, and the lifting frame is slidingly arranged on tracks symmetrically distributed on both sides of the connecting screws.

[0014] The pallet supply device comprises any of the above-mentioned pallet destackers and a conveyor passing between two frames of the pallet destacker.

[0015] Preferably, a material discharge barrier is provided above one side of the conveying surface of the conveyor.

[0016] The cargo pallet-exchanging equipment comprises any of the pallet supply devices described above.

[0017] The advantages of the technical solution of this utility model are mainly reflected in:

[0018] The electric telescopic fork of the utility model only needs one power source to drive the two plug plates to extend and retract, which requires fewer power sources and reduces equipment and operating costs. At the same time, arranging the power source and the rack and pinion transmission mechanism on the side of the telescopic fork can effectively avoid interference with the drive chain, thereby facilitating the connection of the drive chain to the middle position of the lifting frame to ensure balanced forces on both sides of the lifting frame during driving, which is conducive to smooth movement of the lifting frame.

[0019] The sealing plate structure on the opposite sides of the frame of the present invention adopts an upper and lower sealing plate and a door structure, which makes it easy to observe the operating status of the equipment through the door, so that only part of the sealing plate can be removed for maintenance.

[0020] The structure of the lower sealing plate of the utility model can effectively reduce the difficulty of disassembly and assembly, and during disassembly and assembly, only the main plate component of the lower sealing plate can be moved by the handle, which is more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a three-dimensional diagram of the pallet destacking machine of the present invention with part of the closing plate hidden;

[0022] Figure 2 It is a three-dimensional diagram of the pallet destacking machine of the present invention;

[0023] Figure 3 It is a side view of the pallet supply device of the present invention. DETAILED DESCRIPTION

[0024] The objectives, advantages, and features of the present invention are illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of the application of the technical solutions of the present invention. Any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

[0025] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] Example 1

[0027] The pallet destacking machine disclosed by the present invention is described below in conjunction with the accompanying drawings. Figure 1 As shown, it includes two frames 100 with a gap, each of which is provided with an electric telescopic fork 300 that can move up and down along a vertically extending track 200, and a moving fork 320 that reciprocates along a first direction X is provided at the bottom of the lifting frame 310 of the electric telescopic fork 300. The first direction X is the distribution direction of the two frames 100, and the moving fork 320 includes two fork plates with a gap and extending along the first direction X. The moving fork 320 is connected to the gear rack on one side of the moving fork 320. The transmission mechanism 330 is connected to the drive motor 340. The two electric telescopic forks 300 are driven to rise and fall along the track 200 by a chain drive mechanism 400. The chain drive mechanism 400 has only one motor 410. The chain drive mechanism 400 includes two drive chains 420. Both ends of each drive chain 420 are connected to a lifting frame 310. Each drive chain 420 is mounted on two sprockets 430. One sprocket 430 is located at the top of the frame 100, and the other sprocket is located at the bottom of the frame 100.

[0028] When it is necessary to split the pallet, the pallet stack is moved between the two electric telescopic forks 300 by a conveyor 500. After the plug plate 321 of the electric telescopic fork 300 moves to the second narrow board, the plug plate 321 of the electric telescopic fork 300 extends toward the pallet, so that the four plug plates 321 are inserted into the corresponding plug holes on the pallet. Then, the chain drive mechanism 400 drives the two electric telescopic forks 300 to rise to a certain height synchronously, and separates the pallet lifted by the electric telescopic fork 300 from the pallet on the conveyor 500. At this time, the conveyor 500 transports the pallet on it to the outside of the pallet destacker to achieve pallet splitting. When the pallet is transported to the outside of the conveyor 500, the chain drive mechanism 400 drives the two electric telescopic forks 300 to move downward, so that the electric telescopic fork 300 causes the lifted pallet to fall back to the conveyor 500. Then, the above process is repeated to achieve continuous splitting.

[0029] When pallets need to be stacked, one pallet is conveyed between the two electric telescopic forks 300. The electric telescopic forks 300 and the chain drive mechanism 400 lift the pallet. Then, another pallet is conveyed between the two electric telescopic forks 300. The chain drive mechanism 400 lowers the electric telescopic forks 300 to place the lifted pallet on the pallets on the conveyor 500. The chain drive mechanism 400 then moves the electric telescopic forks 300 to the lowest pallet and lifts all the pallets until they are separated from the conveyor 500. The above process is then repeated to continuously stack pallets.

[0030] The frame 100 can be a rectangular frame structure with a hollow interior composed of multiple beams and columns. Supports can be set at the bottom of the two frames 100. The supports are provided with vertically extending holes to facilitate adjustment of the height of each side of the frame 100, so as to facilitate adaptation to different venues; at the same time, the two frames 100 are connected by a connecting beam at their top to increase structural strength and stability.

[0031] As attached Figure 2 As shown, the four sides and top of the frame 100 are provided with a pair of enclosed structures within the frame 100 for protection, and to facilitate subsequent equipment inspection and maintenance, the two frames 100 are respectively detachably provided with an upper sealing plate 110 and a lower sealing plate 120 on opposite sides. A door 130 is provided between the upper sealing plate 110 and the lower sealing plate 120, located at the middle height of the frame 100. When necessary, the door can be opened to observe the operation of the equipment and identify abnormal points, so as to determine whether it is necessary to open the upper sealing plate 110 or the lower sealing plate 120 for inspection and maintenance. The door 130 can also be provided with a touch screen, control buttons, etc. to facilitate equipment debugging, starting, stopping, emergency stop, etc.

[0032] As attached Figure 2 As shown, in order to facilitate manual disassembly and assembly of the lower sealing plate 120, the lower sealing plate 120 adopts a split structure. Specifically, the lower sealing plate 120 includes two side plates 121 and a main baffle 122. The two side plates 121 include an L-shaped frame connecting plate 123 and a side support plate 124. The frame connecting plate 123 is connected to both sides of the frame 100. The outer edge of the side support plate 124 includes an arc segment extending outward and downward from the frame connecting plate 123 and a vertical segment connected below the arc segment. The main baffle 122 includes a main plate member 125 and a main plate member 126 that match the extension of the side support plate 124. The connecting plate 126 is connected to the main plate 125, and the two ends of the connecting plate 126 extend above the two frame connecting plates 123. The connecting plate 126 is connected to the frame 100 and abuts against the top of the frame connecting plates 123. Therefore, when maintenance is required, only the main baffle 122 is required. At the same time, the main baffle 122 is only connected to the frame 100 through the connecting plate 126, which effectively reduces the difficulty of removing and installing screws. In addition, the main baffle 122 can be supported by the frame connecting plates 123, thereby ensuring the stable installation of the main baffle 122. Of course, in other embodiments, the two side plates 121 and the main baffle 122 of the lower cover plate 120 can also be an integrally welded structure.

[0033] Furthermore, in order to facilitate the movement of the upper sealing plate 110 and the main plate component 125 , two groove handles 140 arranged at the same height are respectively provided on the upper sealing plate 110 and the main plate component 125 .

[0034] As attached Figure 1 As shown, the rails 200 are fixed on the inner sides of the columns on the opposite sides of the frame 100 , and there are two of them. Since the electric telescopic fork 300 does not need to move very high, the length of the rails 200 does not need to be very long, and its length is equivalent to the height of the lower cover plate 120 .

[0035] The lifting frame 310 of the electric telescopic fork 300 is slidably disposed on the two rails 200 via a slider (not shown in the figure), and the lifting frame 310 is located on the side of the rails 200 facing away from the gap between the frames 100. The specific structure of the lifting frame 310 can be designed as needed and is not limited here.

[0036] As attached Figure 1As shown, the movable fork 320 comprises a C-shaped main body, two supporting plates of the main body, and two inserting plates 321 of the movable fork 320. A reinforcement plate is provided below the main body to increase structural strength and load-bearing capacity. Furthermore, each inserting plate 321 is provided with a shaping stopper 322. Four shaping stops 322 are used to abut against opposite sides of the pallet when the inserting plate 321 is extended, thereby positioning the pallet. Simultaneously, the shaping stops 322 are positioned on the inserting plates 321 so as to be adjustable along a first direction X. Specifically, the shaping stops 322 are formed with strip-shaped holes extending along the first direction X. The inserting plates 321 are provided with connecting holes corresponding to the strip-shaped holes. The shaping stops 322 and the inserting plates 321 are screwed together.

[0037] The rack and pinion transmission mechanism 330 includes a rack fixed on the movable fork 320 and a gear meshing with the rack. The rack extends along the first direction X. The gear is connected to a drive motor 340 that drives its rotation. The drive motor 340 is a right-angle reduction motor and is fixed on a motor base 350. The motor base 350 is fixed on the lifting frame 310.

[0038] As attached Figure 1 , Attachment Figure 2 As shown, both ends of the two drive chains 420 of the chain drive mechanism 400 are connected to the middle position of the lifting frame 310, and the distances between the two ends of the drive chain 420 and the two rails 200 are equal. At the same time, both ends of the drive chain 420 are connected to the C-shaped member on the lifting frame 310 through connecting screws 440. The connecting screws 440 are arranged on the C-shaped member with an adjustable installation height, thereby facilitating the adjustment of the chain tension.

[0039] The two sprockets 430 at the top are coaxially connected to the ends of a transmission shaft 450. The transmission shaft 450 is rotatably mounted on the tops of the two frames 100 via bearings 460. The transmission shaft 450 is connected to the motor that drives its rotation via a transmission mechanism. A protective cover 150 is also installed on the tops of the two frames 100 to conceal the structure on top of the frames 100.

[0040] Example 2

[0041] This embodiment discloses a pallet supply device, as shown in the attached Figure 3As shown, the pallet destacker as described above and a conveyor 500 interposed between two frames 100 of the pallet destacker are provided. The conveyor 500 may be a known chain conveyor 500 or a roller conveyor 500, etc., and may be composed of one or more roller conveyors 500 connected in sequence. A material discharge block 510 is provided above one side of the conveying surface of the conveyor 500. When a forklift is used to place a stack of pallets onto the conveyor 500 from the side, the material discharge block can be used to block the stack of pallets, thereby facilitating the operator to accurately place the stack of pallets onto the conveyor 500.

[0042] At the same time, the conveying rollers of the conveyor are arranged close to the ground.

[0043] Example 3

[0044] This embodiment discloses a cargo pallet exchange device, comprising any of the pallet supply devices described above.

[0045] There are many implementation methods for the present utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present utility model.

Claims

1. A pallet destacker comprising two frames arranged with a gap, characterized in that: Each of the frames is provided with an electric telescopic fork that can move up and down along a vertically extending track. A mobile fork that reciprocates along a first direction is provided at the bottom of the lifting frame of the electric telescopic fork. The first direction is the distribution direction of the two frames. The mobile fork includes two fork plates with a gap and extending along the first direction. The mobile fork is connected to a drive motor through a gear rack transmission mechanism located on one side of the mobile fork. The two electric telescopic forks are driven to rise and fall along the track by a chain drive mechanism. The chain drive mechanism has only one motor. The chain drive mechanism includes two drive chains. Both ends of each drive chain are connected to a lifting frame, and each drive chain is mounted on two sprockets, one sprocket is located at the top of the frame, and the other sprocket is located at the bottom of the frame.

2. The pallet destacking machine according to claim 1, wherein: An upper sealing plate and a lower sealing plate are detachably provided on opposite sides of the two frames; a door is provided between the upper sealing plate and the lower sealing plate at a middle height of the frames.

3. The pallet destacking machine according to claim 2, wherein: The lower sealing plate includes two side plates and a main baffle, and the two side plates include an L-shaped frame connecting plate and a side support plate. The outer edge of the side support plate includes an arc segment extending outward and downward from the frame connecting plate and a vertical segment connected below the arc segment. The main baffle includes a main board component matching the extension of the side support plate and a connecting plate component connected above the main board component, and both ends of the connecting plate component extend above the two frame connecting plates.

4. The pallet destacking machine according to claim 3, wherein: The upper sealing plate and the main plate are respectively provided with two groove handles arranged at the same height.

5. The pallet destacking machine according to claim 1, wherein: A shaping stopper is provided on the fork plate.

6. The pallet destacking machine according to claim 5, wherein: The shaping stopper can be arranged on the fork plate so as to be positionally adjustable along a first direction.

7. The pallet destacking machine according to any one of claims 1 to 6, characterized in that: Both ends of the driving chain are connected to connecting screws respectively. The two connecting screws are coaxially arranged in the middle of the lifting frame. The lifting frame is slidably arranged on tracks symmetrically distributed on both sides of the connecting screws.

8. Pallet supply device, characterized by: The invention comprises the pallet destacking machine as claimed in any one of claims 1 to 7 and a conveyor passing between two frames of the pallet destacking machine.

9. The pallet supply device according to claim 8, characterized in that: A material discharging blocking bar is provided above one side of the conveying surface of the conveyor.

10. Goods pallet exchange equipment, characterized by: Comprising the pallet supply device according to claim 8 or 9.

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