CN217295109U - Stacking equipment - Google Patents

Abstract

The utility model provides a stacking device, which comprises a frame, a tray and a stacking mechanism, wherein the frame comprises an accommodating space for accommodating a tray for stacking; the limiting assemblies at least comprise two limiting assemblies, the two limiting assemblies are positioned at two sides of the bottom end of the accommodating space, the limiting assemblies extend along a first direction, and the limiting assemblies are rotatably arranged on the rack; the opposite side surfaces of the two limiting assemblies are provided with limiting grooves extending along a first direction, and the limiting grooves comprise lifting surfaces along the first direction; the driving mechanism is arranged on the rack and used for driving the limiting assemblies to simultaneously rotate towards the opposite directions or oppositely rotate; compared with the prior art, the utility model provides a pile up a yard equipment, it only is equipped with a actuating mechanism, controls two through foretell actuating mechanism spacing subassembly synchronous phase or the opposite rotation realize the separation of the tray of piling up a yard, compare in prior art, its structure is simpler, and the cost is cheaper.

Description

Stacking equipment

Technical Field

The application relates to the technical field of egg product processing and packaging, in particular to stacking equipment.

Background

The tray is widely applied to industrial production and product transportation and mainly plays a bearing role; the size and shape of the tray are different according to the application field; wooden pallets (or forklift plates) applied to large-scale cargo transportation and small trays for placing eggs in the egg processing and packaging industry belong to the category of the trays; to facilitate shipping and storage of the pallets, a plurality of pallets are typically stacked (or stacked); when the trays are used, stacked trays need to be separated into single trays, and the production efficiency is greatly influenced if manual separation is adopted; currently, a stack of stacked trays is generally separated automatically by a stacking apparatus.

Stacking equipment generally comprises a support, wherein the support encloses an accommodating space for placing a tray for stacking; and a support mechanism located below the stacked tray and supporting the folded tray; and a separating mechanism for separating the trays; the supporting mechanism generally comprises a supporting plate, the supporting plate comprises a supporting surface, the supporting plate supports the pallet from the lower part of the stacked pallet, and the supporting plate can move in the vertical direction under the driving of the first driving piece; the separating mechanism comprises limiting pieces which are oppositely arranged and comprises two independent second driving pieces, the two second driving pieces respectively drive the two limiting pieces to move between a first position and a second position, when the limiting pieces are positioned at the first position, the limiting pieces lock the lowest tray, and when the limiting pieces are positioned at the second position, the limiting pieces are not contacted with the tray; therefore, when the stopper is located at the second position, the stacked trays are supported by the supporting plate, the supporting plate moves downwards for a certain distance, so that the penultimate tray moves downwards to the position of the stopper, then the stopper moves to the first position, the penultimate tray and all trays above the penultimate tray are locked, and then the supporting plate continues to move downwards to separate the lowermost tray from the stacked tray.

The stacking device can separate stacked trays, but has a complex structure and high cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides an equipment of stacking piles up, it only is equipped with a driving piece, realizes the separation of the tray of stacking piles up through a foretell driving piece, compares in prior art, and its structure is simpler, and the cost is cheaper.

The utility model provides a pile stacking equipment, include

The stacking machine comprises a rack and a tray, wherein the rack comprises an accommodating space for placing a stacking tray;

the limiting assemblies at least comprise two limiting assemblies, the two limiting assemblies are positioned at two sides of the bottom end of the accommodating space and respectively support the tray from the positions of two opposite ends of the bottom of the tray; the limiting assembly extends along a first direction and is rotatably arranged on the rack; the opposite side surfaces of the two limiting assemblies are provided with limiting grooves extending along a first direction, and the limiting grooves comprise lifting surfaces along the first direction; when the two limiting assemblies rotate outwards, the lowest tray of the stacked trays falls into the limiting groove, and the lifting surface lifts the trays from the bottoms of the trays; when the two limiting assemblies rotate inwards in opposite directions, the tray positioned in the limiting groove falls down from the stacking equipment; and (c) a second step of,

and the driving mechanism is arranged on the rack and used for driving the limiting assemblies to synchronously rotate in the opposite directions or in the opposite directions.

Optionally, the limiting assembly includes a first rotating shaft and a limiting member fixedly mounted on the first rotating shaft, the limiting groove is formed in a side surface of the limiting member, the first rotating shaft extends along the first direction, and the first rotating shaft is rotatably mounted on the rack; the output end of the driving mechanism simultaneously controls the two first rotating shafts to rotate oppositely through a transmission piece.

Optionally, the transmission part comprises a lifting frame and a transmission arm, and the lifting frame moves in the vertical direction under the driving of the driving mechanism; two ends of the lifting frame are respectively provided with two transmission arms; one end of the transmission arm is hinged with the lifting frame; the other ends of the two transmission arms are respectively hinged with the two first rotating shafts.

Optionally, the driving mechanism is a linear stroke driving mechanism, and comprises a top rod capable of lifting in the vertical direction; the top end of the ejector rod is connected with the lifting frame so as to drive the lifting frame to move in the vertical direction.

Optionally, the driving mechanism adopts an air cylinder.

Optionally, the limiting member is a circular disc or a cylindrical structure, and the limiting groove is formed in one side surface of the limiting member; the locating part is provided with an assembly hole coincident with the axis of the locating part, and the first rotating shaft penetrates through the assembly hole.

Optionally, two ends of the limiting groove are opened; each first rotating shaft is provided with a plurality of limiting pieces; the limiting pieces are arranged in parallel; the limiting pieces are arranged at equal intervals; the plurality of limiting parts positioned on one side of the accommodating space and the plurality of limiting parts positioned on the other side of the accommodating space are distributed in a mirror symmetry manner.

Optionally, a position sensor is installed on the frame and used for monitoring whether the tray falls into the limit groove.

Optionally, the rack includes a rack main body and a first limiting rod; the frame main body is a vertical rectangular pipeline-shaped structure surrounded by metal plates, and the inner side of the frame main body forms the accommodating space; the limiting assembly is arranged on the rack main body; the rack comprises at least four first limiting rods, the first limiting rods are vertically arranged, the lower ends of the first limiting rods are connected with the rack main body, and the four first limiting rods are respectively arranged at the positions of four corners of the accommodating space; the upper end of the first limiting rod protrudes out of the upper end face of the rack main body.

Optionally, the stacking device further comprises a conveying mechanism; the conveying mechanism comprises a conveying belt along a second direction; the rack main body is arranged at the starting end of the conveyor belt; the rack main body is positioned right above the conveyor belt; the tray that the frame body is put down falls on the conveyor belt.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

the utility model provides a pile yard equipment, it only is equipped with a actuating mechanism, controls two through a foretell actuating mechanism spacing subassembly rotates, through two the separation of the tray of pile yard is realized in the synchronous looks or the opposite phase rotation of spacing subassembly, compares in prior art, and its structure is simpler, and the cost is cheaper.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a perspective structural diagram of the stacking apparatus provided in an embodiment of the present application.

Fig. 2 is a structural diagram of a driving mechanism and a transmission member of the stacking device provided in an embodiment of the present application.

Fig. 3 is a combined diagram of a driving mechanism and a limiting assembly of the stacking apparatus according to an embodiment of the present disclosure.

Fig. 4 is a front view structural diagram of a stopper of the stacking apparatus according to an embodiment of the present application.

Fig. 5 is a perspective view of a stop assembly 7 of the stacking apparatus according to the embodiment of the present application.

Fig. 6 is a side view of stop assembly 7 of the stacking apparatus according to the embodiment of the present application.

Description of the drawings: 1. A frame; 11. an accommodating space; 12. a rack main body; 13. a first limit rod; 131. a guide portion; 14. a second limiting rod; 2. a limiting component; 21. a limiting member; 211. a limiting groove; 2111. lifting the surface; 22. a first rotating shaft; 221. a hinge portion; 3. a drive mechanism; 4. a transmission member; 41. a lifting frame; 42. a drive arm; 5. a transport mechanism; 51. a conveyor belt; 6. a tray; 7. a stop assembly; 71. a driving portion; 72. a support plate; 721. a U-shaped groove; 73. a baffle plate; 74. tightening the bolt; 75. a third rotating shaft; 76. a second rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

Stacking equipment generally comprises a support, wherein the support encloses an accommodating space for placing a tray for stacking; and a support mechanism located below the stacked tray and supporting the folded tray; the stacking device is complex in structure and multiple in driving parts, so that the stacking device is high in cost and difficult to maintain.

The utility model provides an equipment of stacking piles up a yard, it only is equipped with a driving piece, controls two through foretell driving piece spacing subassembly rotates, through two the separation of the tray that the yard was piled up is realized to the synchronous rotation of spacing subassembly, compares in prior art, its simple structure, low cost.

Referring to fig. 1 to 6, the utility model provides a stacking device, include

A rack 1 including an accommodating space 11 for placing a pallet 6 stacked in a stack; the stacked tray 6 is placed in the accommodating space 11; the accommodating space 11 restricts the tray 6 stacked to move only in the vertical direction;

the limiting assemblies 2 at least comprise two limiting assemblies 2, the two limiting assemblies 2 are positioned at two sides of the bottom end of the accommodating space 11, and the tray 6 is respectively supported from two opposite ends of the bottom of the tray 6; the limiting assembly 2 extends along a first direction, and the limiting assembly 2 is rotatably arranged on the rack 1; the opposite side surfaces of the two limiting assemblies 2 are respectively provided with a limiting groove 211 extending along a first direction, and each limiting groove 211 comprises a lifting surface 2111 along the first direction; when the two limiting assemblies 2 rotate outwards, the lowermost tray 6 of the stacked trays falls into the limiting groove 211, and the lifting surface 2111 lifts the tray 6 from the bottom of the tray 6; when two of said restraining assemblies 2 rotate inwards towards each other, said tray 6 located in said restraining groove 211 falls from said stacking apparatus; and (c) a second step of,

and the driving mechanism 3 is arranged on the rack 1 and used for driving the limiting assemblies 2 to synchronously rotate in the opposite directions or reversely.

In some embodiments, the length of the retaining groove 211 is greater than the width of the opposite side of the tray 6; so that the opposite side of the tray 6 can enter the stopper groove 211.

In some embodiments, the stopper groove 211 is open at both ends so that the opposite side of the tray 6 can be dropped into the stopper groove 211.

In some embodiments, the retaining grooves 211 have a height h that is equal to the thickness of the trays 6, such that only one tray 6 can fall into the retaining groove 211 at a time.

In the above embodiment, in particular, the separation of the stacked trays 6 includes the following steps:

s1, placing the stacked trays 6 in the accommodating space 11, and lifting the stacked trays 6 from the bottom surface of the lowest tray 6 by the two limiting assemblies 2 at the bottom end of the accommodating space 11 to prevent the trays 6 from falling.

S2, the driving mechanism 3 drives the two limiting components 2 to synchronously rotate outwards, so that the limiting grooves 211 on the limiting components 2 simultaneously rotate outwards (or the left limiting groove 211 rotates anticlockwise, and the right limiting groove 211 rotates clockwise); the tray 6 located at the lowermost one of the trays 6 in the stack falls into the stopper groove 211.

S3, the driving mechanism 3 drives the two limiting components 2 to synchronously rotate in opposite directions, so that the limiting grooves 211 on the limiting components 2 simultaneously rotate inwards (or the left limiting groove 211 rotates clockwise, and the right limiting groove 211 rotates anticlockwise); the trays 6 positioned in the restraining grooves 211 are dropped from the restraining assemblies 2 while the other trays 6 are positioned above both restraining assemblies 2, thereby completing the separation of the lowermost tray 6 from the stacked trays 6.

In some embodiments, the stop assembly 2 is circular in cross-section to facilitate rotation of the stop assembly 2.

In some embodiments, the limiting component 2 includes a first rotating shaft 22, and a limiting member 21 fixedly mounted on the first rotating shaft 22, a side surface of the limiting member 21 is provided with a limiting groove 211, the first rotating shaft 22 extends along the first direction, the first rotating shaft 22 is rotatably mounted on a connecting portion 8, and the connecting portion 8 is mounted on the frame 1; the output end of the driving mechanism 3 controls the two first rotating shafts 22 to rotate oppositely through the transmission piece 4. The opposite rotation includes: the left first rotating shaft 22 rotates clockwise, and the right first rotating shaft 22 rotates counterclockwise; alternatively, the left first rotating shaft 22 rotates counterclockwise, and the right first rotating shaft 22 rotates clockwise.

Referring to fig. 2 and 3, in some embodiments, the transmission member 4 comprises a lifting frame 41 and a transmission arm 42, the lifting frame 41 being moved in a vertical direction by the driving mechanism 3; two ends of the lifting frame 41 are respectively provided with two transmission arms 42; one end of the transmission arm 42 is hinged with the lifting frame 41; the other ends of the two transmission arms 42 are respectively hinged with the two first rotating shafts 22.

In some embodiments, one end of the first rotating shaft 22 includes a hinge portion 221, and the first rotating shaft 22 is hinged to one end of the transmission arm 42 through the hinge portion 221.

In some embodiments, two first rotating shafts 22 are provided with one hinge portion 221; the two hinge portions 221 respectively located on the two first rotating shafts 22 are located on opposite outer sides of the two first rotating shafts 22.

It is understood that, in the above embodiment, when the crane 41 moves upward, the left first rotating shaft 22 rotates clockwise, and the right first rotating shaft 22 rotates counterclockwise; when the crane 41 moves downward, the left first rotating shaft 22 rotates counterclockwise, and the right first rotating shaft 22 rotates clockwise.

It can be understood that, in the above embodiment, when the lifting frame 41 moves upwards, the two limiting members 2 synchronously rotate towards each other, so that the limiting grooves 211 on the limiting members 2 simultaneously rotate inwards (or the left limiting groove 211 rotates clockwise, and the right limiting groove 211 rotates anticlockwise); the tray 6 located in the stopper groove 211 falls from the stopper assembly 2.

It can be understood that, in the above embodiment, when the lifting frame 41 moves downwards, the driving mechanism 3 drives the two limiting members 2 to synchronously rotate outwards, so that the limiting grooves 211 on the limiting members 2 simultaneously rotate outwards (or the left limiting groove 211 rotates anticlockwise, and the right limiting groove 211 rotates clockwise); the tray 6 that is the lowermost one of the trays 6 in the stack falls into the stopper groove 211.

In some embodiments, the driving mechanism 3 is a linear stroke driving mechanism including a jack 31 capable of ascending and descending in a vertical direction; the top end of the top rod 31 is connected with the lifting frame 41 so as to drive the lifting frame 41 to move in the vertical direction.

In some embodiments, the driving mechanism 3 employs a cylinder.

It should be understood that the driving mechanism 3 may also be an electric push rod, a linear oil cylinder, or other linear stroke driving mechanisms in the prior art.

In some embodiments, the limiting member 21 is a disk or a cylindrical structure, and the limiting groove 211 is opened on one side surface of the limiting member 21; the limiting member 21 is provided with an assembly hole 212 coinciding with the axis thereof, and the first rotating shaft 22 passes through the assembly hole 212; the limiting member 21 and the first rotating shaft 22 rotate synchronously.

In some embodiments, the limiting member 21 is fixed to the first rotating shaft 22 by a bolt.

In some embodiments, the limiting member 21 may also be fixedly connected to the first rotating shaft 22 by using other methods known in the art.

In some embodiments, when the length of the limiting member 21 is greater than the width of the opposite side of the tray 6, the length of the limiting groove 211 is also greater than the width of the opposite side of the tray 6.

In some embodiments, when the length of the limiting member 21 is smaller than the width of the opposite side of the tray 6, the length of the limiting groove 211 is inevitably smaller than the width of the opposite side of the tray 6, and the two ends of the limiting groove 211 are open, so that the edge of the tray 6 can fall into the limiting groove; one or more limiting members 21 can be mounted on each first rotating shaft 22; the limiting members 21 on the same first rotating shaft are arranged in parallel along the length direction of the first rotating shaft 22.

In some embodiments, the length of the limiting member 21 is smaller than the width of the opposite side of the tray 6, and both ends of the limiting groove 211 are open; a plurality of limiting pieces 21 are mounted on each first rotating shaft 22; the limiting members 21 are arranged in parallel, that is, the limiting members 21 on the same first rotating shaft are arranged in parallel along the length direction of the first rotating shaft 22; the limiting pieces 21 are arranged at equal intervals; the limiting members 21 located on one side of the accommodating space 11 and the limiting members 21 located on the other side of the accommodating space 11 are distributed in a mirror symmetry manner.

In some embodiments, a position sensor is mounted on the frame 1 for monitoring whether the tray 6 falls into the limit groove 211.

In some embodiments, the frame 1 comprises a frame body 12 and a first stop bar 13; the frame main body 12 is a vertical rectangular pipeline-shaped structure surrounded by metal plates, and the inner side of the frame main body forms the accommodating space 11; the limiting assembly 2 is arranged on the frame main body 12; the rack comprises at least four first limiting rods 13, the first limiting rods 13 are vertically arranged, the lower ends of the first limiting rods 13 are connected with the rack main body 12, and the four first limiting rods 13 are respectively arranged at the four corners of the accommodating space 11; the upper end of the first limiting rod 13 protrudes out of the upper end face of the rack main body 12. The first limiting rod 13 is used for extending the height of the accommodating space 11, so that more trays 6 can be placed in the accommodating space 11.

In some embodiments, the first limiting rod 13 is made of angle steel. The lower end of the first stopper rod 13 is attached to four corner positions inside the rack main body 12, and in this embodiment, the first stopper rod 13 has two surfaces perpendicular to each other, and the two surfaces perpendicular to each other are respectively abutted against two surfaces at one corner position of the tray 6, so that the first stopper rod 13 also functions to position the tray 6.

In some embodiments, the rack 1 further includes a second limiting rod 14, the second limiting rod 14 is vertically installed, a lower end of the second limiting rod 14 is also installed on the rack main body 12, a height of the second limiting rod 14 is higher than a height of the first limiting rod 13, and the first limiting rod 13 further extends a height of the accommodating space 11, so that more trays 6 can be placed in the accommodating space 11.

In the above embodiment, the accommodating space 11 is divided into three parts, the first part is a space surrounded by the rack main body 12, the second part is a rectangular space surrounded by four first limiting rods 13, the third part is a rectangular space surrounded by the second limiting rods 14, and in order to enable the tray 6 to smoothly fall into the second part from the third part, the top of the first limiting rods 13 is provided with an inclined guide part 131.

In some embodiments, two pairs of ends of the first rotating shaft 22 are rotatably mounted on two opposite surfaces of the frame body 12. The drive mechanism 3 is fixedly attached to one of the two opposing surfaces.

In some embodiments, the palletizing apparatus further comprises a transport mechanism 5; the conveying mechanism 5 includes a conveyor belt 51 in the second direction; the rack main body 12 is mounted at the beginning of the conveyor belt 51; the rack main body 12 is located at a position directly above the conveyor belt 51; the bottom of the frame body 12 has a certain distance from the bearing surface of the conveyor belt 51; the tray 6 dropped by the housing main body 12 falls on the conveyor belt 51.

It should be understood that the conveyor belt 51 also includes a motor for driving its movement.

In some embodiments, the rear section of the conveyor belt 51 comprises a packaging section to which a robot arm moves eggs from another process onto the trays 6 as the trays 6 move with the conveyor belt 51, the robot arm being terminated with a wash configuration for transferring eggs. To ensure the smooth performance of the above-mentioned process, only one tray 6 is admitted into the wrapping section at a time; in order to realize the above process, referring to fig. 5 and 6, the conveyor belt 51 is provided with a stopping assembly 7, the stopping assembly 7 includes a driving portion 71 and a stopping portion, and the stopping portion swings between the first position and the second position under the driving of the driving portion 71; when the stopping part is located at the first position, the stopping part stops the tray 6 to prevent the tray 6 from entering the packaging section; when the stop portion is located at the second position, the stop portion does not stop the tray 6 on the conveyor belt 51, and the tray 6 can enter the packaging section along with the movement of the conveyor belt 51. By means of the stop assembly 7, only one tray 6 at a time is introduced into the wrapping section at the end of the conveyor belt 51.

In some embodiments, the stop portion includes a support plate 72 and a baffle plate 73; the baffle plate 73 is opposite to the supporting plate 72; the baffle plate 73 is mounted on a first surface of the support plate 72; one end of the supporting plate 72 is rotatably mounted on the frame of the conveying mechanism 5 through a second rotating shaft 76; the driving part 71 is a linear driving mechanism including a jack rod moving in a first direction; one end of the driving part 71 is hinged with the frame of the conveying mechanism 5; the top rod of the top rod is hinged with the hinge part positioned on the second surface of the supporting plate 72; the first and second faces are opposite faces of the support plate 72; the ram moves back and forth in the first direction to move the support plate 72 between the first and second positions.

In some embodiments, the drive portion 71 is a pneumatic cylinder.

In some embodiments, the baffle 73 is vertically mounted to the first face of the support plate 72.

In some embodiments, the mounting position of the baffle 73 on the support plate 72 is adjustable in the second direction; when the stopping portion is located at the first position, the supporting plate 72 is parallel to the carrying surface of the conveyor belt 51; the second direction is parallel to the conveying direction of the conveyor belt 51.

In some embodiments, the support plate 72 is provided with a U-shaped slot 721 along the second direction, and the baffle 73 includes a mounting portion at a lower end, and the mounting portion is mounted on the support plate 72 by a fastening bolt 74.

In some embodiments, the set bolt 74 includes a handle to facilitate the operator loosening and tightening the set bolt.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a detailed description of the invention that enables one skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An stacking device is characterized by comprising

The rack (1) comprises an accommodating space (11) for placing the stacked tray (6);

the limiting assemblies (2) at least comprise two limiting assemblies (2), the two limiting assemblies (2) are positioned at two sides of the bottom end of the accommodating space (11), and the tray (6) is supported from two opposite ends of the bottom of the tray (6) respectively; the limiting assembly (2) extends along a first direction, and the limiting assembly (2) is rotatably arranged on the rack (1); the opposite side surfaces of the two limiting assemblies (2) are respectively provided with a limiting groove (211) extending along a first direction, and each limiting groove (211) comprises a lifting surface (2111) along the first direction; when the two limiting assemblies (2) rotate outwards, the lowest one of the stacked trays (6) falls into the limiting groove (211), and the lifting surface (2111) lifts the tray (6) from the bottom of the tray (6); when the two limiting assemblies (2) rotate inwards in opposite directions, the tray (6) positioned in the limiting groove (211) falls down from the stacking device; and the number of the first and second groups,

and the driving mechanism (3) is arranged on the rack (1) and is used for driving the limiting assemblies (2) to synchronously rotate in opposite directions or oppositely rotate.

2. Stacking apparatus according to claim 1, characterized in that said stop assembly (2) comprises a first stop element (2)

The rotating shaft (22) and the limiting piece (21) fixedly mounted on the first rotating shaft (22), the side surface of the limiting piece (21) is provided with the limiting groove (211), the first rotating shaft (22) extends along the first direction, and the first rotating shaft (22) is rotatably mounted on the rack (1); the output end of the driving mechanism (3) controls the two first rotating shafts (22) to rotate oppositely through a transmission piece (4).

3. Stacking device according to claim 2, characterized in that the transmission (4) comprises a crane

And a transmission arm (42), wherein the lifting frame (41) moves in the vertical direction under the driving of the driving mechanism (3); two ends of the lifting frame (41) are respectively provided with two transmission arms (42); one end of the transmission arm (42) is hinged with the lifting frame (41); the other ends of the two transmission arms (42) are respectively hinged with the two first rotating shafts (22).

4. Stacking apparatus according to claim 3, characterized in that said driving mechanism (3) is a rectilinear row

A stroke drive mechanism including a jack (31) that can be raised and lowered in the vertical direction; the top end of the ejector rod (31) is connected with the lifting frame (41) so as to drive the lifting frame (41) to move in the vertical direction.

5. Stacking apparatus according to claim 4, characterized in that said driving mechanism (3) employs a pneumatic cylinder.

6. Stacking apparatus according to claim 2, characterized in that said stop (21) is a disc or a circle

The limiting groove (211) is arranged on one side surface of the limiting piece (21); the limiting piece (21) is provided with an assembling hole (212) coinciding with the axis of the limiting piece, and the first rotating shaft (22) penetrates through the assembling hole (212).

7. Stacking apparatus according to claim 6, characterized in that said retaining groove (211) is open at both ends thereof

A mouth; a plurality of limiting pieces (21) are mounted on each first rotating shaft (22); the limiting pieces (21) are arranged in parallel; the limiting pieces (21) are arranged at equal intervals; the plurality of limiting parts (21) positioned on one side of the accommodating space (11) and the plurality of limiting parts (21) positioned on the other side of the accommodating space (11) are distributed in a mirror symmetry manner.

8. Stacking apparatus according to claim 1, characterized in that said frame (1) is equipped with a position for mounting thereon

And the sensor is used for monitoring whether the tray (6) falls into the limiting groove (211).

9. Stacking apparatus according to claim 1, characterized in that said frame (1) comprises a frame body

And a first stop lever (13); the rack main body (12) is a vertical rectangular pipeline-shaped structure formed by surrounding metal plates, and the inner side of the rack main body forms the accommodating space (11); the limiting assembly (2) is mounted on the rack main body (12); the rack comprises at least four first limiting rods (13), wherein the first limiting rods (13) are vertically arranged, the lower ends of the first limiting rods (13) are connected with the rack main body (12), and the four first limiting rods (13) are respectively arranged at the positions of four corners of the accommodating space (11); the upper end of the first limiting rod (13) protrudes out of the upper end face of the rack main body (12).

10. A palletizing device according to claim 9, further comprising a transfer device

A mechanism (5); the conveying mechanism (5) comprises a conveying belt (51) along a second direction; the frame main body (12) is arranged at the starting end of the conveyor belt (51); the frame main body (12) is positioned right above the conveyor belt (51); the tray (6) laid down by the rack body (12) falls on the conveyor belt (51).

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