CN111453293A

CN111453293A - Automatic unstacker

Info

Publication number: CN111453293A
Application number: CN202010295350.0A
Authority: CN
Inventors: 赵学峰; 张振; 高振钢
Original assignee: Dezhou Zhidian Machinery Technology Co ltd
Current assignee: Dezhou Zhidian Machinery Technology Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-07-28
Anticipated expiration: 2040-04-15
Also published as: CN111453293B

Abstract

An automatic unstacker relates to the technical field of unstacking equipment, and is used for disassembling a stack body on a tray and comprises an unstacking unit, wherein the unstacking unit comprises a lifting assembly and an unstacking assembly, the lifting assembly comprises a support frame capable of ascending/descending, and the tray can be arranged on the support frame; the unstacking assembly is located on the upper side of the lifting assembly and comprises an unstacking conveying belt, a pushing component protruding out of the unstacking conveying belt is arranged on the outer side surface of the unstacking conveying belt and used for pushing a bag body on a tray away from the tray, and the automatic unstacking machine can achieve automatic unstacking of packaging bags.

Description

Automatic unstacker

Technical Field

The invention relates to the technical field of unstacking equipment, in particular to an automatic unstacker.

Background

The bagged goods is basically automated in the aspect of packaging and stacking, but in the logistics transfer process, the bagged goods after stacking is frequently required to be disassembled into single bags, and the bags are transferred as units, for example, the bagged goods are loaded and delivered, and ingredients are blended in the production process.

At present, the automatic unstacking mode adopts a hand grasping mode of a robot (joint type or rectangular coordinate type) matched with a vacuum chuck, and the automatic unstacking mode has the following defects: 1. the mode needs to be matched with a stack type visual identification, grabbing (or sucking) and placing operation system and the like, so that the cost is higher; 2. influenced by materials, bag quality and the like, the unstacking efficiency is low and the stability is poor in the vacuum grabbing process; 3. most bags of bagged goods are plastic woven bags, and a vacuum sucker cannot establish high vacuum degree when sucking the bags, and cannot suck or cannot suck reliably; 4. the pocket position decision manipulator on feed pile upper portion snatchs the stroke of the vertical direction of part, and along with the increase of goods height, the tablet of feed pile top is apart from the vertical distance grow of manipulator, so need transfer the vertical removal's that the manipulator snatched distance increase, and this kind of displacement must lead to the fact the design complexity of manipulator, causes its control loaded down with trivial details, cost greatly increased.

Based on the shortcoming of above-mentioned current automatic mechanism of breaking a jam, need urgently to propose a pure mechanical type's mode, need not vacuum system and sucking disc and participate in, more need not supporting buttress type visual identification system, need not complicated operation process to the demand of breaking a jam of the various packing material bags that adapt to on the existing market.

Disclosure of Invention

The invention provides an automatic unstacker aiming at the technical problems in the prior art, which can realize the automatic unstacking of packaging material bags.

In order to achieve the technical purpose, an embodiment of the invention provides an automatic unstacker, which is used for disassembling a stack body on a tray, and comprises an unstacking unit, wherein the unstacking unit comprises:

the lifting assembly comprises a supporting frame capable of ascending/descending, and the tray can be placed on the supporting frame;

the unstacking assembly is positioned on the upper side of the lifting assembly and comprises an unstacking conveying belt, a pushing component protruding out of the unstacking conveying belt is arranged on the outer side surface of the unstacking conveying belt, and the pushing component is used for pushing a bag body on the tray away from the tray.

Preferably, the automatic unstacker further comprises:

a conveying unit including a plurality of rotatable conveying rollers for supporting the tray;

and the tray warehouse is connected with the conveying unit and used for storing the trays after unstacking is finished.

Preferably, the conveying unit comprises a second conveying assembly and a transmission assembly, and the transmission assembly is positioned at the lower side of the second conveying assembly; the second conveying assembly comprises a plurality of conveying rollers which are arranged in parallel and at intervals, a gap part is formed among the plurality of conveying rollers, and the plurality of conveying rollers of the second conveying assembly are in transmission connection through the transmission assembly;

the support frame includes a plurality of parallel and interval arrangement's support bar, the support bar with clearance portion matches.

Preferably, the tray warehouse comprises a lifting mechanism and a supporting mechanism, and the supporting mechanism comprises a plurality of support columns which are arranged on two sides of the lifting mechanism in a swinging mode.

Preferably, the automatic unstacker further comprises a transfer unit, the tray warehouse is connected with the conveying unit through the transfer unit, and the transfer unit is used for transferring the trays which are subjected to unstacking on the conveying unit to the tray warehouse.

Preferably, the pushing member comprises a fixing part, a bending connecting part and a pushing part, wherein one end of the bending connecting part is connected with the fixing part, the other end of the bending connecting part is fixedly connected with the pushing part, and an included angle is formed between the bending connecting part and the fixing part; the fixed part is connected with the unstacking conveying belt.

Preferably, the pushing member further comprises a supporting part fixed on the upper side of the bending connecting part, and the upper end of the supporting part can abut against the unstacking conveying belt.

Preferably, the automatic unstacker comprises a first conveyor belt and a second conveyor belt, wherein the first conveyor belt is positioned between the unstacking unit and the second conveyor belt, and the first conveyor belt is used for conveying a feed bag to the direction of the second conveyor belt.

Preferably, the automatic unstacker further comprises a first overturning member and a second overturning member, wherein the first overturning member is positioned between the unstacking unit and the first conveyor belt, and the second overturning member is positioned between the first conveyor belt and the second conveyor belt.

Preferably, the first turnover member includes a sloping plate and a first angular protrusion fixed to the sloping plate; one end of the inclined plate, which is close to the first conveying belt, is lower than the other end of the inclined plate; the second flipping member is positioned between the first conveyor belt and the second conveyor belt, the second flipping member including a second horn-like protrusion.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

the automatic unstacker in the embodiment of the invention can complete automatic unstacking and improve the production efficiency.

Further, the operator can place a stack of feedbacks on the delivery unit in the left position using a forklift. The conveying unit is provided with a plurality of rotatable conveying rollers, the conveying rollers convey the tray to the right side, when the tray moves to the position of the unstacking unit, the feed bags on the tray of the unstacking unit are conveyed to the first conveying belt, and the split feed bags are conveyed to other positions through the second conveying belt. The depalletized trays are conveyed rightwards by the conveying unit and stored in the tray warehouse in a centralized mode.

Still further, the support frame can descend to in the clearance portion of second conveyor assembly, i.e. the upper surface of support frame can be lower than the upper end horizontal work face of second conveyor assembly. When the tray is conveyed to the second conveying assembly, the supporting frame can support the tray.

And the unstacking unit can adapt to the working condition that the bag bodies on the same layer are staggered, and under the condition that part of the bag bodies are higher, the bag bodies on the higher positions are firstly contacted with the lower side surfaces of the bending connecting parts and press the bending connecting parts, and under the action of the pressing force, the unstacking conveying belt deforms, so that the pushing part moves upwards to adapt to the feed bags on the higher positions. The push part can also push the feed bag at a lower position under the condition that the position of the partial bag body is lower.

Still further, the unstacking conveyor belt can push the transversely arranged bags and the longitudinally arranged bags from the tray, and adjust the length direction of each bag to be the same as the conveying direction of the second conveyor belt.

Still further, the tray warehouse provided by the embodiment of the invention can be used for intensively storing the destacked trays, wherein the supporting mechanism adopts a mechanical transmission structure, and has good synchronism and stable support compared with the structure of a plurality of cylinders.

Drawings

FIG. 1 is a schematic view of a pallet and stack structure according to one embodiment.

Fig. 2 is a top view of fig. 1.

FIG. 3 is a schematic top view of an embodiment of an automated unstacker.

FIG. 4A is a front view of an embodiment of an automated unstacker.

FIG. 4B is a front view of an automated unstacker according to another embodiment.

Fig. 5 is a schematic structural view of a supporting frame according to an embodiment.

Fig. 6 is a schematic view of the working principle of the unstacking unit according to an embodiment.

Fig. 7 is a schematic structural view of an unstacking unit according to an embodiment.

Fig. 8 is a schematic view of the operation of the unstacking unit shown in fig. 7 with the bag bodies in the lower position.

Fig. 9 is a schematic view of the operation of the unstacking unit shown in fig. 7 with the bag bodies in the upper position.

Figure 10 is a schematic view of the principles of the bag being unstacked when the bag is in the transverse direction.

Figure 11 is a schematic view of the principle of unstacking the pouches in the longitudinal direction.

Fig. 12 is a top view of fig. 11.

FIG. 13 is a schematic structural view of a transfer unit according to an embodiment.

Fig. 14 is a schematic structural diagram of a tray library according to an embodiment.

Fig. 15 is a left side view of fig. 14.

FIG. 16 is a top view of a support mechanism according to one embodiment.

FIGS. 17 to 20 are schematic views illustrating the principle of tray storage.

Description of the reference numerals

1-pallet, 101-legs, 102-hollow;

2-stack body, 201, 202-bag body;

3-conveying unit, 310-first conveying assembly, 320-second conveying assembly, 321-gap part, 330-transmission assembly, 340-third conveying assembly;

4-unstacking unit, 410-unstacking conveyor belt, 411-pushing member, 4111-fixing part, 4112-bending connecting part, 4113-pushing part, 4114-supporting part, 4115-fixing part, 4116-long groove, 420-unstacking bracket, 431-chain wheel, 432-chain, 433-supporting bracket and 4331-supporting strip;

5-a first conveyor belt, 501-a rack;

6-a second conveyor belt;

7-a transfer unit, 701-a first transmission wheel, 702-a second transmission wheel, 703-a transmission belt, 704-a pusher;

8-pallet warehouse, 810-lifting mechanism, 811-top rack, 812-bottom rack, 813-first scissor arm, 814-second scissor arm, 815-third scissor arm, 816-fourth scissor arm, 817-connecting rod;

820-support mechanism, 821-first prop, 8211-first extension, 822-second prop, 8221-second extension, 823-first connecting rod, 824-second connecting rod, 825-third connecting rod, 826-cylinder, 827-rotating shaft;

830-a lifting drive unit, 831-a drive element, 832-a first transmission shaft, 833-a second transmission shaft, 834-a transmission chain; 840-a bottom plate;

9-a first flip member, 901-a sloping plate, 902-a first angular protrusion;

10-second upturned member, 1001-second horn protrusion.

Detailed Description

Other objects and advantages of the present invention will become apparent from the following explanation of the preferred embodiments of the present application.

FIG. 1 is a schematic view of a pallet and stack structure according to one embodiment. Fig. 2 is a top view of fig. 1.

As shown in fig. 1 and 2, in the industries of feed, flour, fertilizer and the like, a packaging bag is generally used for containing powdery materials. When the packaging bag is transported, the packaging bag is generally stacked in a stack shape as shown in fig. 1 and fig. 2, that is, one layer comprises 5 bags, wherein 3 bags 201 are placed transversely, and 2 bags 202 are placed longitudinally. Also, when the stacks 2 are stacked, the positions where the 3 bags 201 and the 2 bags 202 are placed are staggered. For example, at the lowermost level of the

stack

2, 3 pockets 201 are located on the left; the second 3 bags 201, counted from below, are positioned on the right side, in order to increase the overall stability of the stack 2 and avoid the collapse of the stack 2.

In actual production, a bag body (hereinafter, a feed bag is described as an example) is generally arranged on the tray 1, so that the materials can be conveniently transported by a forklift or the like. In this embodiment, a plurality of legs 101 (for example, 3 legs) are provided on the lower side of the pallet 1, and a space 102 is formed between two adjacent legs 101. The legs 101 are continuous strips, and a plurality of legs 101 are arranged in parallel. When the pallet 102 is transferred with a forklift truck, the empty part 102 may be used to put in the forks of the forklift truck.

Taking a feed manufacturer as an example, in some cases it is necessary to take apart stacks of feedbacks and to transfer the feedbacks one by one onto a conveyor belt. In the prior art, manual carrying is generally adopted, the labor intensity of workers is high, and the production efficiency is low. Moreover, it is difficult to automatically separate the feedbacks based on the shape of the stacks (as shown in fig. 1). Therefore, how to automatically disassemble and convey the stack-shaped feedbacks onto the conveyor belt by mechanical means is a technical problem which is always desired to be solved and not solved by the technicians in the field. The inventor of the present invention has been researched and extensively tested to creatively solve the above technical problems. The automatic unstacker of the present invention will be described in detail below.

FIG. 3 is a schematic top view of an embodiment of an automated unstacker. FIG. 4A is a front view of an embodiment of an automated unstacker.

As shown in fig. 3 and 4A, the automatic unstacker of the present embodiment includes a conveying unit 3, an unstacking unit 4, a first conveying belt 5, a second conveying belt 6, a transfer unit 7, and a pallet magazine 8. In practice, the operator can place a stack of feedbacks on the delivery unit 3 in the left position, using a fork-lift truck. Be equipped with a plurality of rotatable conveying rollers on the conveying unit 3, the conveying roller carries tray 1 to the right side, when tray 1 moved to the position of breaking a jam unit 4, breaks a jam unit 4 and carries the manger bag split on the tray 1 to first conveyer belt 5, and first conveyer belt 5 carries the manger bag to second conveyer belt 6 on, then the manger bag after rethread second conveyer belt 6 carried to other positions. The depalletized trays 1 are conveyed further to the right by the conveying unit 3 and are collectively stored in the tray magazine 8. The structure and operation of each part of the automatic unstacker will be described in detail below.

In this embodiment, the conveying unit 3 includes a first conveying assembly 310, a second conveying assembly 320, and a third conveying assembly 340. The first conveying assembly 310, the second conveying assembly 320 and the third conveying assembly 340 are sequentially arranged from left to right, and the upper ends of the conveying assemblies are preferably located on the same horizontal working surface. Specifically, the first conveying assembly 310 and the third conveying assembly 340 each include a plurality of conveying rollers arranged in parallel, and the plurality of conveying rollers are sequentially connected in a transmission manner. For example, a plurality of conveying rollers are connected in a transmission manner by a chain and a chain wheel in sequence. The second conveying assembly 320 also includes a plurality of conveying rollers, but when different from the first conveying assembly 310, a transmission assembly 330 is provided at a lower side of the second conveying assembly 320, and the transmission assembly 330 includes transmission shafts rotatably supported in one-to-one correspondence with the conveying rollers of the second conveying assembly 320. In this embodiment, all be equipped with 3 sprockets on every transmission shaft, wherein, first sprocket passes through chain drive with the adjacent transmission shaft in left side and is connected, and the second sprocket then passes through the chain and is connected with the conveying roller transmission of its upside, and the third sprocket then is connected with the adjacent transmission shaft transmission of right side. Thereby, a plurality of gap portions 321 are formed between the plurality of conveying rollers in the second conveying unit 320.

Further, as shown in fig. 4B, the transmission assembly 330 may also be provided to be staggered with the plurality of conveying rollers of the second conveying assembly 320, the gap portion 321 can also be realized, and there is a smaller number of assemblies.

The unstacking unit 4 comprises a lifting assembly and a unstacking assembly, wherein the lifting assembly comprises a support frame 433 capable of ascending and descending, and fig. 5 is a structural schematic diagram of the support frame of an embodiment. The supporting frame 433 includes a plurality of supporting bars 4331 arranged in parallel. The supporting bars 4331 correspond to the gap portions 321 formed between the conveying rollers of the second conveying assembly 320. That is, the supporting frame 433 can be lowered into the gap portion 321 of the second conveying assembly 320, that is, the upper surface of the supporting frame 433 can be lower than the upper horizontal working surface of the second conveying assembly 320. The purpose is that the supporting frame 433 can support the pallet 1 when the pallet 1 is conveyed to the second conveying assembly 320.

There are many options for lifting the supporting frame 433, for example, a chain wheel 431 and a chain 432 in transmission connection with the chain wheel 431 may be disposed above the second conveying assembly 320, and an end of the chain 432 is fixedly connected with the supporting frame 433, so that when the driving element drives the chain wheel 431 to rotate, the chain 433 can lift the supporting frame 433. In addition, the structure of a screw rod and a screw nut can be adopted, and the structure of a scissor lift can be adopted.

As shown in fig. 4A, the unstacking assembly comprises an unstacking conveyor 410 capable of moving back and forth in the horizontal direction, and the frame of the unstacking conveyor 410 and the unstacking bracket 420 can move horizontally in the left and right directions, so that the unstacking conveyor 410 can push the

bags

201 and 202 at different positions in the horizontal direction on the stack body 2. The unstacking conveyor belt 410 and the unstacking bracket 420 can be connected through structures of a linear guide rail and a sliding block, and can also be connected through structures of a roller. Moreover, the structure for driving the unstacking conveying belt 410 to horizontally reciprocate has various options, and a person skilled in the art can adopt a transmission structure of a chain and a chain wheel, a transmission structure of a gear and a rack, a transmission structure of a lead screw and a lead screw nut, and the like.

Fig. 6 is a schematic view of the working principle of the unstacking unit according to an embodiment. As shown in fig. 6, at least one pushing member 411 is disposed on the unstacking conveyor 410, and when the unstacking conveyor 410 rotates, the pushing member 411 can push a part of the feed bags on one layer to move. The stack body can be detached layer by the combined movement of the layer-by-layer upward movement of the support frame 433 and the horizontal movement of the unstacking conveyor belt 410.

In an ideal situation, each layer of the feedbacks are at the same level, but in actual operation, the height of each feedbag in the same layer is often inconsistent due to various reasons. In this embodiment, sensors (for example photoelectric sensors) can be used to detect the position of the topmost feedbag of the stack 2. The sensor is connected to the controller, and when the sensor detects a feeding bag, a signal is sent to the controller, and the controller controls the driving element driving the support frame 433 to stop, so that the support frame 433 can maintain the position. However, as shown in fig. 7, if the sensor detects a feedbag in a higher position when the height of the feedbag is not consistent, then only a portion of the end of the feedbag can be contacted when the push member 411 is pushing a lower feedbag, thus creating a situation of jamming the unstacking conveyor 410. To solve this technical problem, the automatic unstacker of the present embodiment is specially designed for the structure of the pushing member 411.

Fig. 8 is a schematic view of the operation of the unstacking unit shown in fig. 7 with the bag bodies in the lower position. Fig. 9 is a schematic view of the operation of the unstacking unit shown in fig. 7 with the bag bodies in the upper position.

As shown in fig. 8 and 9, in the automatic unstacker of the embodiment, the pushing member 411 includes a fixing portion 4111, a bending connecting portion 4112 and a pushing portion 4113, wherein one end of the bending connecting portion 4112 is fixedly connected to the fixing portion 4111, the other end of the bending connecting portion 4112 is fixedly connected to the pushing portion 4113, and an included angle a is formed between the bending connecting portion 4112 and the fixing portion 4111, and the included angle is preferably an obtuse angle. The included angle between the bending connection portion 4112 and the pushing portion 4113 is preferably a right angle. The fixing portion 4111 is fixedly connected to the conveying belt of the unstacking conveyor 410. When the conveyer belt of the unstacking conveyer 410 rotates, the pushing member 411 is driven to push the feeding bag.

When the feedbag is in the lower position, as shown in fig. 8, the pushing section 4113 can push the feedbag in the lower position.

When the feeding bag is located at a higher position, as shown in fig. 9, the feeding bag at the higher position first contacts with the lower side surface of the bending connecting portion 4112 and presses the bending connecting portion 4112, and under the action of the pressing force, the unstacking conveying belt 410 deforms, so that the pushing portion 4113 moves upwards to adapt to the feeding bag at the higher position. In some embodiments, the pushing member 411 further includes a supporting portion 4114 fixed on an upper side of the bent connecting portion 4112, and the supporting portion 4114 extends to the upper side along a direction perpendicular to the bent connecting portion 4112. Thus, the support portion 4114 can first come into contact with the lower side surface of the unstacking conveyor belt 410, and thus can restrict the pushing member 411 from excessively moving upward. Furthermore, the supporting portion 4114 is provided with an elongated slot, and the supporting portion 4114 is connected to the bending connection portion 4112 through the elongated slot 4116 and the fixing member 4115. The fixing member 4115 may be, for example, a bolt, one end of which is welded to the upper surface of the bent connecting portion 4112, and the bolt passes through the elongated slot and is screwed with a nut. By the structure of the elongated groove 4116, the relative position between the support portion 4114 and the bending connection portion 4112 can be adjusted, and the vertical movement range of the pushing portion 4113 can be adjusted.

The unstacking conveyor 410 pushes the transversely arranged feedbacks and the longitudinally arranged feedbacks out of the tray 1. The feed bag aims at solving the technical problem that the length direction of the feed bag is not uniform. The automatic unstacker of the present embodiment is a bold innovation, perfectly solving the problem.

Figure 10 is a schematic view of the principle of unstacking a bag in the transverse direction. Figure 11 is a schematic view of the principle of unstacking the pouches in the longitudinal direction. Fig. 12 is a top view of fig. 11.

As shown in fig. 10, the automatic unstacker of the embodiment comprises a first conveyor belt 5 and a second conveyor belt 6, wherein the first conveyor belt 5 is positioned between the unstacking unit 4 and the second conveyor belt 6, and the first conveyor belt 5 is used for conveying the feed bag towards the second conveyor belt 6.

The automatic unstacker of the embodiment further comprises a first overturning member 9 and a second overturning member 10, wherein the first overturning member 9 is positioned between the unstacking unit 4 and the first conveying belt 5, and the second overturning member 10 is positioned between the first conveying belt 5 and the second conveying belt 6. The first flip member 9 includes a sloping plate 901 and a first angular protrusion 902 fixed to the sloping plate 901. The inclined plate 901 has one end closer to the first conveyor belt 5 lower than the other end, that is, the inclined plate 901 is inclined to one side of the first conveyor belt 5. The second flipping member 10 is disposed between the first conveyor belt 5 and the second conveyor belt 6, and the second flipping member 10 includes a second horn-shaped protrusion 902 fixedly coupled to the frame 501 of the first conveyor belt 5.

As shown in fig. 10, when the feedbacks are arranged horizontally (the length direction of the feedbacks is perpendicular to the paper), the feedbacks slide down along the slant plate 901, and fall on the first conveyor belt 5 by the first angle protrusion 902. The feeding bag is conveyed from the first conveying belt 5 to the second conveying belt 6, when the feeding bag travels to the tail end of the first conveying belt 5, the feeding bag is overturned again to fall on the second conveying belt 6 due to the blocking effect of the second horn-shaped protrusions 1001, and at the moment, the length direction of the feeding bag is parallel to the conveying direction of the second conveying belt 6. In fig. 10, the process of turning over the feedbag is shown from a to g.

As shown in fig. 11 and 12, when the feedbag is arranged in a longitudinal direction (the longitudinal direction of the feedbag is parallel to the plane of the paper), the length of the feedbag is longer than the width thereof, so that the feedbag can pass over the first horn-shaped protrusion 902 and the second horn-shaped protrusion 1001 without being turned over twice. When the feedbag travels to the end of the first conveyor belt 5, the front end of the feedbag first contacts the second conveyor belt 6, the front end moves with the second conveyor belt 6, and under the combined action of the second conveyor belt 6 and the first conveyor belt 5, the length direction of the feedbag deflects to be consistent with the direction of the second conveyor belt 6. In fig. 11 and 12, the process of the deflection of the feedbag direction is shown from a 'to g'.

The unstacked tray 1 is carried by the supporting frame 433 to move downward, and when the supporting frame 433 sinks into the gap 321, the tray 1 is continuously conveyed rightward (refer to fig. 4A) to the third conveying assembly 340 by the second conveying assembly 320. The present embodiment also provides a tray magazine and a transfer unit 7 that transfers the trays 1 to the tray magazine by the third conveyance assembly 340.

FIG. 13 is a schematic structural view of a transfer unit according to an embodiment. Fig. 14 is a schematic structural diagram of a tray library according to an embodiment. Fig. 15 is a left side view of fig. 14.

As shown in fig. 13, the transfer unit 7 includes a first driving wheel 701, a second driving wheel 702, and a belt 703, wherein the belt 703 passes around the first driving wheel 701 and the second driving wheel 702, the belt 703 may be a chain, for example, and the first driving wheel 701 and the second driving wheel 702 may be sprockets, for example. In this embodiment, a pushing member 704 is disposed on the transmission belt 703, the height of the transmission belt 703 is lower than that of the third conveying assembly 340, and the pushing member 704 protrudes from the outer surface of the transmission belt 703 and extends to the upper side of the conveying roller of the third conveying assembly 340. Thus, when the belt 703 rotates, the tray 1 on the third transport unit 340 can be pushed to move in the direction of the tray magazine 8. The belt 703 may be, for example, two belts, each of which is located in a gap between the conveying rollers in the third conveying assembly 340.

As shown in fig. 14, the tray magazine 8 includes an elevating mechanism 810 and a supporting mechanism 820. The elevating mechanism 810 is used to lift the tray 1 upward, and the supporting mechanism 820 is used to cooperate with the elevating mechanism 810 to stack and support the tray 1.

Specifically, as shown in fig. 14, the lifting mechanism 810 includes a top frame 811 and a bottom frame 812, and the top frame 811 is connected to the bottom frame 812 through a scissors lifting mechanism to achieve lifting and lowering. Specifically, the scissors lifting mechanism includes a first scissors arm 813, a second scissors arm 814, a third scissors arm 815 and a fourth scissors arm 816, wherein the first scissors arm 813 is hinged to the second scissors arm 814, and the third scissors arm 815 is hinged to the fourth scissors arm 816. The left end of the first scissor arm 813 is hinged to the top frame 811, and the right end of the first scissor arm 813 abuts against the bottom frame 812. The left end of the second scissor arm 814 is hinged to the bottom frame 812, and the right end of the second scissor arm 814 abuts against the top frame 811.

Similarly, the third scissor arm 815 has a left end hinged to the top housing 811 and a right end abutting the bottom housing 812; the left end of the fourth scissor arm 816 is hinged to the bottom frame 812 and the right end of the fourth scissor arm is abutted to the top frame 811.

Meanwhile, in the present embodiment, the upper portion of the second scissor arm 814 and the upper portion of the fourth scissor arm 816 are connected by a connecting rod 817.

The tray magazine 8 of this embodiment further includes a lifting drive unit 830, and the lifting drive unit 830 is configured to drive the lifting mechanism 810 to ascend and descend. The elevating driving unit 830 includes a driving member 831, a first transmission shaft 832, a second transmission shaft 833, and a transmission chain 834. The driving member 831 is in transmission connection with the first transmission shaft 832 through a chain, and the first transmission shaft 832 is in transmission connection with the second transmission shaft 833 through a transmission chain 834. A drive chain 834 is connected to the bottom of the first scissor arm 813. Therefore, the transmission chain 834 can drive the lower end of the first scissor arm 813 to approach or depart from the lower end of the second scissor arm 814, so as to realize the lifting or descending of the top frame body 811.

As shown in fig. 15, the support mechanism 820 includes a first support 821 and a second support 822, and the first support 821 and the second support 822 are respectively located on the left and right sides in the width direction of the elevating mechanism 810. The lower end of the first support 821 is pivotally connected to the bottom plate 840, and the lower end of the second support 822 is pivotally connected to the bottom plate 840. The upper ends of the first and

second supports

821, 822 can be close to or away from each other. A first extending portion 8211 protruding toward the elevating mechanism 810 is provided at the tip of the first support 821, and a second extending portion 8221 protruding toward the elevating mechanism 810 is provided at the tip of the second support 822.

FIG. 16 is a top view of a support mechanism according to one embodiment.

Specifically, as shown in fig. 16, the support mechanism 820 further includes a first link 823, a second link 824, a third link 825, and a cylinder 826, and a middle portion of the first link 823 is rotatably connected to the bottom plate 840 by a vertically disposed pivot. A first end of the first link 823 is pivotally connected to one end of the second link 824, and the other end of the second link 824 is pivotally connected to the first pillar 821. The second end of the first link 823 is pivotally connected to one end of the third link 825, and the other end of the third link 825 is pivotally connected to the second pillar 822. One end of the cylinder 826 is pivotally connected to the bottom plate 840, and the other end is pivotally connected to the first link 823. Thus, the piston rod of the first cylinder 826 can push the first link 823 to rotate, and the first link 823 pulls the first pillar 821 to approach or separate from the lifting mechanism 810 through the second link 824; the first link 823 pulls the second strut 822 toward or away from the elevating mechanism 810 through the third link 825.

FIGS. 17 to 20 are schematic diagrams illustrating the storage principle of the tray.

As shown in fig. 17, the first extension portion 8211 and the second extension portion 8221 are caught in the hollow portion 102 at the bottom of the tray 1 to support the three trays 1 at the top. When the transfer unit 7 transfers a newly added tray 1 to above the elevating mechanism 810.

As shown in fig. 18, the top housing 811 of the elevating mechanism 810 moves upward, and the top of the newly added tray 1 lifts the upper tray 1 by a distance. The first extension 8211 and the second extension 8221 are pushed by the air cylinder 826 to be rotatably extracted from the hollow part 102.

As shown in fig. 19, the elevating mechanism 810 continues to push the tray 1 upward by a distance.

As shown in fig. 20, the first extension portion 8211 and the second extension portion 8221 are pulled by the air cylinder 826 to be rotatably caught in the bottom vacant portion 102 of the newly added tray 1, and the elevating mechanism 810 is retracted downward to complete the warehousing process and wait for the next tray 1.

The apparatus of the present application has been described in detail with reference to the preferred embodiments thereof, however, it should be noted that those skilled in the art can make modifications, alterations and adaptations based on the above disclosure without departing from the spirit of the present application. The present application includes the specific embodiments described above and any equivalents thereof.

Claims

1. An automatic unstacker for dismantling the buttress body on the tray, its characterized in that, including the unit of unstacking, the unit of unstacking includes:

2. The automated unstacker of claim 1, further comprising:

3. The automated unstacker according to claim 2, wherein the conveyor unit includes a second conveyor assembly and a drive assembly, the drive assembly being located on a lower side of the second conveyor assembly; the second conveying assembly comprises a plurality of conveying rollers which are arranged in parallel and at intervals, a gap part is formed among the plurality of conveying rollers, and the plurality of conveying rollers of the second conveying assembly are in transmission connection through the transmission assembly;

4. The automated unstacker of claim 2, wherein the pallet magazine includes a lift mechanism and a support mechanism including a plurality of posts swingably disposed on both sides of the lift mechanism.

5. The automatic unstacker according to claim 2, further comprising a transfer unit by which the pallet magazine is connected to the conveying unit, the transfer unit being configured to transfer the unstacked pallets on the conveying unit to the pallet magazine.

6. The automatic unstacker according to any one of claims 1 to 5, wherein the pushing member comprises a fixed portion, a bent connecting portion and a pushing portion, wherein one end of the bent connecting portion is connected to the fixed portion and the other end is fixedly connected to the pushing portion, and an included angle is formed between the bent connecting portion and the fixed portion; the fixed part is connected with the unstacking conveying belt.

7. The automatic unstacker according to claim 6, wherein the pushing member further comprises a support fixed to the upper side of the bent connecting portion, the upper end of the support being capable of abutting against the unstacking conveyor belt.

8. An automatic unstacker according to any one of claims 1 to 5, characterized in that it comprises a first conveyor belt and a second conveyor belt, wherein the first conveyor belt is located between the unstacking unit and the second conveyor belt, the first conveyor belt being intended to convey a feedbag in the direction of the second conveyor belt.

9. The automatic unstacker of claim 8, further comprising a first flipping member and a second flipping member, wherein the first flipping member is between the unstacking unit and the first conveyor belt and the second flipping member is between the first conveyor belt and the second conveyor belt.

10. The automated unstacker of claim 9, wherein the first flipping member comprises a sloping plate and a first angled protrusion secured to the sloping plate; one end of the inclined plate, which is close to the first conveying belt, is lower than the other end of the inclined plate; the second flipping member is positioned between the first conveyor belt and the second conveyor belt, the second flipping member including a second horn-like protrusion.