CN112093489B - Unstacking conveying equipment - Google Patents

Abstract

The invention relates to the technical field of warehouse goods conveying equipment, and provides unstacking conveying equipment, which comprises a bag head taking device, an intermediate conveyor and a material receiving conveyor, wherein the bag head taking device, the intermediate conveyor and the material receiving conveyor are arranged on a frame; taking a wrapping head, and taking the goods package from the goods stack; the intermediate conveyor is arranged behind the bag taking head and is used for realizing the bag-by-bag output of the goods bags; the receiving conveyor is arranged below the middle conveyor and is used for receiving the goods packages output by the middle conveyor; the bag taking head and the middle conveyor can do stretching or retracting actions in the horizontal direction; the bag taking head, the intermediate conveyor and the receiving conveyor can do ascending or descending actions in the frame body. Therefore, the frame body is provided with the bag taking head, the middle conveyor and the material receiving conveyor; the goods packages are taken off from the goods stack and then the single packages are output. The invention is suitable for unstacking and conveying of fixedly stacked goods stacks. Continuous operation and high conveying efficiency. The frame body has a moving function, the operation position is flexible, and the frame body is not limited by the stacking position.

Description

Unstacking conveying equipment

Technical Field

The invention belongs to the technical field of warehouse goods conveying equipment, and particularly relates to unstacking conveying equipment.

Background

With the development of automatic equipment, in the field of warehouse logistics, a plurality of automatic stacking and unstacking equipment also appear.

However, most of the existing unstacking equipment is used for tray type moving stacks. The pallets need to be transported to the unstacking equipment in cooperation with the workshop transfer equipment. Most of warehouses are usually fixed stacks which are directly stacked on the ground, the existing unstacking equipment is difficult to use and can only be completed by manpower, the labor intensity is high, and the labor cost is high.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a destacking conveying apparatus, in which a frame is provided with a bag head, an intermediate conveyor and a receiving conveyor; the goods packages are taken off from the goods stack and then the single packages are output. The invention is suitable for unstacking and conveying of fixedly stacked goods stacks. Continuous operation and high conveying efficiency. The frame body has a moving function, the operation position is flexible, and the frame body is not limited by the stacking position.

In order to achieve the purpose, the invention provides unstacking conveying equipment which comprises a bag head taking device, an intermediate conveyor and a receiving conveyor, wherein the bag head taking device is arranged on a frame; specifically, the method comprises the following steps: and the bag head is used for taking the goods bag down from the goods stack.

And the middle conveyor is arranged behind the bag taking head and is used for realizing the bag-by-bag output of the goods bags.

And the receiving conveyor is arranged below the middle conveyor and is used for receiving the goods packages output by the middle conveyor.

The bag taking head and the middle conveyor can synchronously do the extending or retracting action in the horizontal direction.

The bag taking head, the intermediate conveyor and the receiving conveyor can do ascending or descending actions in the frame body.

According to the unstacking and conveying equipment, the frame body is provided with the lifting frame, and the lifting frame is in threaded connection with the screw rod; the lifting frame is provided with a translation frame, and the translation frame is provided with a bag taking head and an intermediate conveyor; one end of the receiving conveyor is arranged on the lifting frame, and the other end of the receiving conveyor is hung below the middle conveyor through a hanging rod; the translation frame is connected with a translation assembly for driving the translation frame to extend or retract; the translation assembly comprises a translation rack connected with a translation frame; the translation rack is also in transmission connection with a translation motor arranged on the lifting frame.

According to the unstacking and conveying equipment, the packet taking head comprises a packet grabbing mechanism and a dragging mechanism; the bale grabbing mechanism comprises a bale grabbing shaft which is arranged in an upper layer and a lower layer, and three bale shifting barrels are sleeved on the bale grabbing shaft; the rotation directions of the bale grabbing shafts positioned at the upper layer and the lower layer are opposite; the goods packages are grabbed and conveyed to the dragging mechanism together.

According to the unstacking and conveying equipment, the conveying speed of the dragging mechanism is greater than that of the packet grabbing mechanism; the bale grabbing shaft is sleeved with the bale pulling barrel through a one-way bearing.

According to the unstacking and conveying equipment, the front end of the bag grabbing mechanism is also provided with a bag lifting shaft, and a bag pulling barrel is fixedly sleeved on the bag lifting shaft.

According to the unstacking and conveying equipment, the dragging mechanism and the intermediate conveyor are different-speed conveying mechanisms; the different-speed conveying mechanism comprises three conveying belts which are arranged in parallel and convey in the same direction; the conveying speeds of any two conveying belts are different.

Two ends of the conveying belt are respectively provided with a support shaft, and a carrier roller for correspondingly supporting the conveying belt is rotatably arranged on each support shaft; two electric rollers are respectively arranged on the two supporting shafts; one of the motorized pulleys is arranged in the middle, and the other motorized pulley is arranged on one side.

The electric roller arranged in the middle is fixedly connected with a main driving wheel, and a supporting roller on the same side of the other supporting shaft as the main driving wheel is fixedly connected with a first auxiliary driving wheel.

The main driving wheel is connected with the first auxiliary driving wheel through a driving strip.

According to the unstacking conveying equipment, the conveying speed of the conveying belt at the middle position is the maximum.

According to the unstacking and conveying equipment, the lane changing assemblies are arranged above the conveying belts on the two sides of the middle conveyor; the lane changing component is perpendicular to the conveying belt and forms an included angle of not less than 45 degrees with the conveying direction of the conveying belt.

According to the unstacking conveying equipment, the electric roller arranged on one side of the middle conveyor is replaced by the carrier roller, and the carrier roller is fixedly connected with the second auxiliary driving wheel; the electric roller positioned in the middle is fixedly connected with a main driving wheel in transmission connection with the second auxiliary driving wheel.

According to the unstacking and conveying equipment, the electric roller on one side of the dragging mechanism is in transmission connection with the bag grabbing shaft, and the bag grabbing shaft is in transmission connection with the bag lifting shaft.

According to the unstacking and conveying equipment, an upper layer of bale grabbing shaft and a lower layer of bale grabbing shaft of the bale grabbing mechanism are respectively arranged on an upper support plate and a lower support plate, and a dragging mechanism is further arranged on the lower support plate; a spacing supporting rod is connected between the upper supporting plate and the lower supporting plate.

The upper support plate and the lower support plate are respectively and rotatably connected to the translation frame, and two ends of the spacing support rod are respectively and rotatably connected with the upper support plate and the lower support plate; the upper support plate is also connected with a pressure head cylinder arranged on the translation frame.

According to the unstacking and conveying equipment, the upper support plate is rotatably connected with the movable part; the bale plucking shaft positioned at the upper layer in the bale plucking mechanism is arranged on the movable part.

The invention aims to provide unstacking conveying equipment, which is characterized in that a frame body is provided with a bag head taking machine, an intermediate conveyor and a receiving conveyor; the goods packages are taken off from the goods stack and then the single packages are output. The invention is suitable for unstacking and conveying of fixedly stacked goods stacks. Continuous operation and high conveying efficiency. The frame body has a moving function, the operation position is flexible, and the frame body is not limited by the stacking position.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure of the intermediate conveyor in fig. 1.

Fig. 3 is a schematic structural diagram of an embodiment of the top cross-sectional view of fig. 2.

Fig. 4 is a schematic structural diagram of an embodiment of the top cross-sectional view of fig. 2.

Fig. 5 is a front view of fig. 1.

Fig. 6 is a schematic structural diagram of the packet fetching head in fig. 1.

Fig. 7 is a schematic structural diagram of the transmission relationship of the head of the invention.

Fig. 8 is a schematic cross-sectional structure diagram of the ladle poking cylinder of the invention.

Fig. 9 is a schematic view of an operating state of the present invention.

FIG. 10 is a schematic diagram of an operating state of the present invention.

In the figure: 1-a conveying belt, 11-a supporting shaft, 12-a lane changing component, 13-a carrier roller, 131-a first auxiliary driving wheel and 132-a second auxiliary driving wheel; 14-electric roller, 141-main driving wheel; 15-a drive bar; 2-a lifting frame, 21-a screw rod, 22-a translation frame, 23-a hanging rod and 24-a translation rack; 3-spacing strut, 31-upper supporting plate, 311-movable part; 32-lower support plate, 33-head pressing cylinder; 4-bag pulling cylinder, 41-strip-shaped bulge, 42-bag grabbing shaft and 43-bag lifting shaft; 10-dragging mechanism, 100-package taking head, 200-middle conveyor, 300-receiving conveyor and 400-frame body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Referring to fig. 1, the present invention provides an unstacking conveying apparatus including a bag taking head 100, an intermediate conveyor 200, and a receiving conveyor 300, which are provided in a frame 400.

A header 100 is used to remove the package from the stack.

And the middle conveyor 200 is arranged behind the packet taking head 100 and is used for realizing the packet-by-packet output of the goods packets.

And the receiving conveyor 300 is arranged below the intermediate conveyor 200 and is used for receiving the goods packages output by the intermediate conveyor 200.

The bag taking head 100 and the intermediate conveyor 200 may be synchronously extended or retracted in the horizontal direction.

The pack taking head 100, the intermediate conveyor 200, and the receiving conveyor 300 may be moved up or down in the frame 400.

The receiving conveyor 300 may be docked to a transfer device disposed in a warehouse or a workshop to transfer the removed bale to the transfer device. The transfer equipment is a conveying belt or an AGV transfer vehicle and the like which are paved in a workshop.

Taking the package head 100 and the intermediate conveyor 200 layer by layer, and gradually extending into each layer until all the goods packages in the layer are taken down; and then retracting and adjusting the height together to take down a layer of goods package. In the process of taking the package from each layer, the relative position of the receiving conveyor 300 and the transfer equipment is kept unchanged, so that the goods package can be smoothly conveyed.

Referring to fig. 5, a lifting frame 2 is arranged on a frame 400, and the lifting frame 2 is screwed with a screw 21; the lifting frame 2 is provided with a translation frame 22, and the translation frame 22 is provided with a bag head taking 100 and an intermediate conveyor 200; one end of the receiving conveyor 300 is mounted on the crane 2, and the other end is suspended below the intermediate conveyor 200 by a boom 23.

The translation frame 22 is connected with a translation assembly for driving the translation frame to extend or retract; the translation assembly includes a translation rack 24 connected to a translation carriage 22; the translation rack 24 is also in transmission connection with a translation motor arranged on the lifting frame 2.

Preferably, the bottom of the frame 400 is provided with a moving wheel for moving to the working position.

Referring to fig. 6, the bale plucking head 100 comprises a bale grabbing mechanism and a dragging mechanism 10; with reference to fig. 9, the bale plucking mechanism includes a bale plucking shaft 42 disposed in an upper layer and a lower layer, and three bale plucking barrels 4 are sleeved on the bale plucking shaft 42; the rotation directions of the bale grabbing shafts 42 positioned at the upper layer and the lower layer are opposite; together to grasp and transfer the bale to the towing mechanism 10.

The towing mechanism 10 rapidly carries the package away and transfers it to the intermediate conveyor 200.

Referring to fig. 8, a plurality of strip-shaped protrusions 41 are uniformly and annularly arranged on the bale pulling barrel 4, so that the bale grabbing force is increased.

The bale grasping shaft 42 on the upper layer of the bale grasping mechanism can be a driven shaft. Preferably, the bale grabbing shaft 42 on the upper layer of the bale grabbing mechanism is provided with a plurality of electric rollers 14; the motorized pulley 14 is in turn in driving connection with the respective bale-grasping shaft 42 via the drive chain 15.

Preferably, the conveying speed of the dragging mechanism 10 is greater than that of the bag grabbing mechanism, so that the goods bags are prevented from being stacked. Further, the bale grabbing shaft 42 is sleeved with the bale pulling barrel 4 through a one-way bearing; after the dragging mechanism 10 contacts the goods package, the goods package can be dragged away quickly, the goods package can drive the package pulling barrel 4 to rotate relative to the package grabbing shaft 42, the mutual interference between the dragging mechanism 10 and the package grabbing mechanism is avoided, the goods package is prevented from being damaged, and the conveying speed is reduced.

Preferably, the front end of the bag grabbing mechanism is further provided with a bag lifting shaft 43, and the bag lifting shaft 43 is fixedly sleeved with the bag pulling barrel 4.

When the bag is taken, the bag pulling barrel 4 on the bag lifting shaft 43 extends to the lower part of the goods bag to lift the goods bag; along with the extending action, the goods bag is convenient to be grabbed by the bag grabbing mechanism. The horizontal height of the bale lifting shaft 43 is lower than that of the bale grabbing shaft 42, and the vertical distance between the bale lifting shaft and the bale grabbing shaft is 20-45 mm.

An upper layer of bag grabbing shaft 42 and a lower layer of bag grabbing shaft 42 of the bag grabbing mechanism are respectively arranged on the upper support plate 31 and the lower support plate 32, and the lower support plate 32 is also provided with a dragging mechanism 10; a spacing strut 3 is connected between the upper support plate 31 and the lower support plate 32; according to the specification of the disassembled goods package, the length of the spacing support rods 3 is properly set, and the length of the spacing support rods 3 is usually slightly smaller than the thickness of the goods package, so that certain clamping force is provided when the upper layer and the lower layer of the package grabbing shaft 42 are used for operation, and the goods package is grabbed more smoothly.

Further, the upper supporting plate 31 and the lower supporting plate 32 are respectively and rotatably connected to the translation frame 22, and two ends of the spacing strut 3 are respectively and rotatably connected with the upper supporting plate 31 and the lower supporting plate 32; the upper support plate 31 is also connected to a ram cylinder 33 provided on the pan carriage 22.

Referring to fig. 10, the ram cylinder 33 is extended, and the upper and lower support plates 31 and 32 are simultaneously rotated and moved downward by a certain distance; the goods bag placed on the ground can be conveniently lifted. The ram cylinder 33 is preferably an air cylinder.

Preferably, the upper supporting plate 31 is rotatably connected with a movable part 311, and a bale grabbing shaft 42 of a bale grabbing mechanism positioned at the upper layer is mounted on the movable part 311; when the goods package is taken, the goods package is extruded by gravity to form a clamping force; when the ram cylinder 33 is extended, the movable portion 311 rotates by a certain angle to maintain the distance between the upper support plate 31 and the lower support plate 32.

As an example, the drag mechanism 10 and the intermediate conveyor 200 of the present invention are different speed conveying mechanisms.

Referring to fig. 2, the different-speed conveying mechanism of the invention comprises three conveying belts 1 which are arranged in parallel and conveyed in the same direction; the conveying speeds of any two conveyor belts 1 are different.

Meanwhile, the material bags respectively placed on the three conveying belts 1 are sequentially separated in the conveying process, so that accumulation at the conveying tail end is avoided, and the processing is facilitated.

If the material bags are transversely placed, the material bags cross the two conveying belts 1, and the speed difference exists between the two materials, so that the transversely placed material bags are automatically adjusted to be forward in the conveying process, and the orientation of all the material bags reaching the tail end of the conveying is consistent.

Preferably, the lane-changing assembly 12 is arranged above the conveying belts 1 on the two sides of the middle conveyor 200; the lane changing component 12 is arranged perpendicular to the conveying belt 1 and forms a predetermined included angle with the conveying direction of the conveying belt 1. The goods packages are moved to the middle conveying belt 1 under the guiding action of the lane changing component 12, so that the goods packages are intensively output from the middle conveying belt 1, and the next step of processing or the like is facilitated; and the use of the equipment in the next process is facilitated.

The included angle between the lane changing component 12 and the conveying direction of the conveying belt 1 is not less than 45 degrees, so that lane changing can be realized quickly; preferably, the included angle is at least 60 degrees, and the direction of the goods packages can be adjusted while the lane is changed rapidly, so that the same-direction output of all the goods packages is realized.

The lane-change assembly 12 of the present invention may be a lane-change flapper. Preferably, the lane-changing component 12 is a lane-changing conveyor belt, and has a conveying power, when the goods package is changed, the head of the goods package is quickly brought onto the intermediate conveying belt 1 by the lane-changing conveyor belt, the speed of the intermediate conveying belt 1 is higher, the goods package is quickly pulled onto the belt, the lane-changing time is further shortened, and the forward orientation of the goods package is maintained or adjusted in the lane-changing process.

It is preferable that the conveying speed of the conveyor belt 1 of the present invention at the intermediate position is maximized. Preferably, the conveying speeds of the three conveying belts 1 are arranged in an arithmetic progression from large to small, and the distances among the material bags conveyed by the middle conveying belt 1 are equal, so that the parameter setting of subsequent equipment is facilitated.

As an example, referring to fig. 3, both ends of the conveyor belt 1 are respectively provided with a support shaft 11; a supporting roller 13 which correspondingly supports the conveying belt 1 is rotatably arranged on the supporting shaft 11; one of the supporting shafts 11 is provided with a motorized pulley 14, and the motorized pulley 14 is located in the middle of the supporting shaft 11.

Two ends of the electric roller 14 are respectively and fixedly connected with a main driving wheel 141; the carrier rollers 13 on two sides of the other support shaft 11 are fixedly connected with a first auxiliary driving wheel 131 and a second auxiliary driving wheel 132 respectively; the two main driving wheels 141 are respectively connected with the corresponding first auxiliary driving wheel 131 and the second auxiliary driving wheel 132 by the driving strip 15.

According to the speed requirement of the corresponding conveying belt 1, the first auxiliary driving wheel 131 and the second auxiliary driving wheel 132 with different diameters are selected, so that the conveying speeds of the three conveying belts 1 are different.

Preferably, the conveying speed of the intermediate conveyor belt 1 is twice and four times that of the two-sided conveyor belt 1, respectively.

The drive chain 15 may be a chain or a belt. The present invention preferably selects a synchronous belt to stabilize the speed difference between the respective conveyor belts 1.

Preferably, at least one support shaft 11 is arranged between two support shafts 11 at two ends of the conveying belt 1 according to the requirement of conveying distance; the supporting shaft 11 is provided with three carrier rollers 13 which respectively correspondingly support the conveying belt 1; the number of the support shafts 11 is set adaptively according to the length of the conveyor belt 1.

As an embodiment, in order to adapt to the high load condition, referring to fig. 4, two support shafts 11 at two ends of the conveying belt 1 are respectively provided with a motorized roller 14; one of the motorized pulleys 14 is disposed at a middle position and the other motorized pulley 14 is disposed at one side.

The electric roller 14 arranged in the middle is fixedly connected with a main driving wheel 141, and the carrier roller 13 on the same side of the other supporting shaft 11 with the main driving wheel 141 is fixedly connected with a first auxiliary driving wheel 131.

The mutually different speeds of the three conveyor belts 1 are realized by respectively controlling the rotational speeds of the two motorized pulleys 14.

Referring to fig. 7, the motorized pulley 14 on one side of the dragging mechanism 10 is in driving connection with a bale catching shaft 42, and the bale catching shaft 42 is in driving connection with a bale lifting shaft 43. The linkage of the dragging mechanism 10 and the packet grabbing mechanism is realized.

In summary, the invention provides unstacking conveying equipment, which is characterized in that a frame body is provided with a bag taking head, an intermediate conveyor and a material receiving conveyor; the goods packages are taken off from the goods stack and then the single packages are output. The invention is suitable for unstacking and conveying of fixedly stacked goods stacks. Continuous operation and high conveying efficiency. The frame body has a moving function, the operation position is flexible, and the frame body is not limited by the stacking position.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

1. A unstacking and conveying device is characterized by comprising a bag head taking device, an intermediate conveyor and a receiving conveyor which are arranged on a frame body; specifically, the method comprises the following steps:

taking a wrapping head, and taking the goods package from the goods stack;

the intermediate conveyor is arranged behind the bag taking head and is used for realizing the bag-by-bag output of the goods bags;

the receiving conveyor is arranged below the middle conveyor and is used for receiving the goods packages output by the middle conveyor;

the bag taking head and the middle conveyor can synchronously do stretching or retracting actions in the horizontal direction;

the bag head taking, the middle conveyor and the material receiving conveyor can do ascending or descending actions in the frame body;

the frame body is provided with a lifting frame which is in threaded connection with a screw rod; the lifting frame is provided with a translation frame, and the translation frame is provided with a bag taking head and an intermediate conveyor; one end of the receiving conveyor is arranged on the lifting frame, and the other end of the receiving conveyor is hung below the middle conveyor through a hanging rod;

the translation frame is connected with a translation assembly for driving the translation frame to extend or retract; the translation assembly comprises a translation rack connected with a translation frame; the translation rack is also in transmission connection with a translation motor arranged on the lifting frame.

2. The unstacking and conveying equipment as claimed in claim 1, wherein the bale picking head comprises a bale grabbing mechanism and a dragging mechanism; the bale grabbing mechanism comprises a bale grabbing shaft which is arranged in an upper layer and a lower layer, and three bale shifting barrels are sleeved on the bale grabbing shaft; the rotation directions of the bale grabbing shafts positioned at the upper layer and the lower layer are opposite; the goods packages are grabbed and conveyed to the dragging mechanism together.

3. The unstacking conveyor apparatus of claim 2 wherein the conveying speed of the towing mechanism is greater than the conveying speed of the bale grasping mechanism; the bale grabbing shaft is sleeved with the bale pulling barrel through a one-way bearing.

4. The unstacking and conveying equipment as claimed in claim 2 or 3, wherein a bag lifting shaft is further arranged at the front end of the bag grabbing mechanism, and a bag pulling barrel is fixedly sleeved on the bag lifting shaft.

5. The unstacking and conveying equipment as claimed in claim 4, wherein the dragging mechanism and the intermediate conveyor are different-speed conveying mechanisms;

the different-speed conveying mechanism comprises three conveying belts which are arranged in parallel and convey in the same direction; the transmission speeds of any two conveying belts are different;

two ends of the conveying belt are respectively provided with a support shaft, and a carrier roller for correspondingly supporting the conveying belt is rotatably arranged on each support shaft; two electric rollers are respectively arranged on the two supporting shafts; one electric roller is arranged in the middle, and the other electric roller is arranged on one side;

the electric roller arranged in the middle is fixedly connected with a main driving wheel, and a supporting roller on the other supporting shaft at the same side of the main driving wheel is fixedly connected with a first auxiliary driving wheel;

the main driving wheel is connected with the first auxiliary driving wheel through a driving strip.

6. An unstacking conveyor apparatus as in claim 5 wherein the conveying speed of the conveyor belt in the intermediate position is at a maximum.

7. The unstacking and conveying equipment as claimed in claim 6, wherein a lane changing assembly is arranged above the conveying belts on two sides of the middle conveyor; the lane changing component is perpendicular to the conveying belt and forms an included angle of not less than 45 degrees with the conveying direction of the conveying belt.

8. The unstacking conveying equipment as claimed in claim 6, wherein the electric roller arranged on one side of the intermediate conveyor is replaced by a carrier roller, and the carrier roller is fixedly connected with a second auxiliary driving wheel; the electric roller positioned in the middle is fixedly connected with a main driving wheel in transmission connection with the second auxiliary driving wheel.

9. The unstacking and conveying equipment as claimed in claim 6, wherein the electric roller on one side of the dragging mechanism is in transmission connection with a bag grabbing shaft which is in transmission connection with a bag lifting shaft.

10. The unstacking and conveying equipment as claimed in any one of claims 5 to 9, wherein the upper and lower bale grasping shafts of the bale grasping mechanism are respectively arranged on an upper support plate and a lower support plate, and a dragging mechanism is further arranged on the lower support plate; a spacing strut is connected between the upper support plate and the lower support plate;

the upper support plate and the lower support plate are respectively and rotatably connected to the translation frame, and two ends of the spacing support rod are respectively and rotatably connected with the upper support plate and the lower support plate; the upper support plate is also connected with a pressure head cylinder arranged on the translation frame.

11. The unstacking conveyor apparatus of claim 10 wherein the upper support plate is pivotally connected to the movable section; the bale plucking shaft positioned at the upper layer in the bale plucking mechanism is arranged on the movable part.

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