CN110606377A

CN110606377A - Tray stacking machine

Info

Publication number: CN110606377A
Application number: CN201810619418.9A
Authority: CN
Inventors: 李冷; 卢艳
Original assignee: Ande Polytron Technologies Inc
Current assignee: Wuhu ande Zhilian Technology Co.,Ltd.
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2019-12-24

Abstract

The invention discloses a tray stacking machine, which comprises: the lifting device comprises a frame, a rack, a lifting driving mechanism, a fork and a fork driving mechanism; the frame is arranged on the frame in a way of lifting up and down; the lifting driving mechanism is connected between the frame and the rack to drive the rack to lift; the fork is movably arranged on the frame; the fork driving mechanism is connected between the fork and the rack to drive the fork to move; the pallet fork comprises two groups of opposite forks, the two groups of opposite forks can move towards each other to lift the pallet, and the two groups of opposite forks can move away from each other to put down the pallet. According to the tray stacking machine provided by the embodiment of the invention, the pallet fork reciprocates up and down along with the rack, and after the pallet fork lifts the tray, the tray can be moved to a corresponding height; the pallet forks can do telescopic motion, so that the pallet can be stably supported or put down by the two groups of oppositely arranged pallet forks; the tray is particularly suitable for the condition that the tray is a thin-wall tray and has no fork-taking opening.

Description

Tray stacking machine

Technical Field

The invention belongs to transportation equipment, and particularly relates to a tray stacking machine.

Background

Automated Guided Vehicles (AGVs) are widely used in the logistics industry. To carry more loads and heavier loads, the AGV trays are typically set larger. In order to satisfy the heavy load demand and simultaneously guarantee the intensity of AGV tray self, often adopt the AGV tray of metal material preparation. Such metal AGV trays are typically provided in relatively thin sections with thin side walls to reduce their weight. Therefore, can't reserve on thin lateral wall and fork and get the mouth, this just causes to use traditional tray stack dish machine, can't fork to metal AGV tray from the side and get to fold a dish sign indicating number and put, even if develop the fork and get and fold a dish work reluctantly, the work fault rate is high, and is efficient.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the tray stacking machine which can fork trays easily and has high tray stacking efficiency.

According to an embodiment of the invention, the tray stacking machine comprises: a frame; the frame is arranged on the frame in a way of being capable of lifting up and down; the lifting driving mechanism is connected between the frame and the rack to drive the rack to lift; the pallet fork is movably arranged on the rack; the fork driving mechanism is connected between the fork and the rack to drive the fork to move; the pallet fork comprises two groups of opposite forks, the two groups of opposite forks can move in the direction towards each other to lift the pallet, and the two groups of opposite forks can move in the direction away from each other to put down the pallet.

According to the tray stacking machine provided by the embodiment of the invention, under the action of the lifting driving mechanism, the pallet fork reciprocates up and down along with the rack, and after the pallet fork lifts the tray, the tray can be moved to a corresponding height; under the action of the fork driving mechanism, the forks can do telescopic motion, so that the two groups of oppositely arranged forks stably support or put down the tray; the upper surface of the fork contacts with the lower surface of the tray, and the fork can be inserted into the bottom of the tray from the outer side edge of the tray to bear the tray.

The tray stacker according to an embodiment of the present invention further includes: the positioning pieces are movably arranged on the rack, the two groups of positioning pieces are suitable for being abutted against opposite side walls of the tray; the positioning driving mechanism is arranged on the rack and connected with the positioning piece to drive the positioning piece to move.

Optionally, the positioning drive mechanism is a pneumatic cylinder.

According to the tray stacking machine provided by the embodiment of the invention, the frame comprises a transverse frame and two groups of vertical frames which are vertically arranged, the transverse frame is respectively connected with the two groups of vertical frames, each group of vertical frames is provided with a liftable rack, and each rack is provided with one group of forks.

According to a tray stacker of an embodiment of the present invention, the elevating driving mechanism includes: the traction assembly is provided with a rope body, at least part of the rope body is connected between the rack and the top of the frame, and the traction assembly pulls the rack to lift by stretching the rope body.

According to a further embodiment of the invention, the pulling assembly comprises: the winch is arranged on the frame and used for winding and unwinding the rope body; the pulley is arranged on the frame, and the rope body is connected with the rack after passing around the pulley.

According to a further embodiment of the invention, the rope bodies are connected to both ends of the frame in a direction perpendicular to the moving direction of the fork, and the rope bodies connected to both ends are respectively connected to the winch after passing through at least one pulley.

According to a tray stacker of an embodiment of the present invention, the elevating driving mechanism includes: a first gear assembly, the first gear assembly comprising: the first driving motor is arranged on the rack, the first gear is connected to the first driving motor, the first rack is vertically arranged on the frame, and the first gear is meshed with the first rack.

According to a further embodiment of the present invention, two ends of the frame in a direction perpendicular to the moving direction of the fork respectively correspond to one of the first gear transmission assemblies, and the first racks of the two first gear transmission assemblies are disposed on two opposite side walls of the frame.

According to a tray stacker of an embodiment of the present invention, the fork driving mechanism includes: a second gear assembly, the second gear assembly comprising: the second driving motor is arranged on the rack, the second gear is connected to the second driving motor, the second rack is transversely arranged on the goods fork, and the second gear is meshed with the second rack.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view of a tray stacker according to an embodiment of the present invention.

Fig. 2 is a side view of a pallet stacker according to one embodiment of the present invention.

Reference numerals:

a tray stacker 100;

a frame 10; a transverse frame 11; a mullion 12;

a frame 20;

a lift drive mechanism 30; a traction assembly 31; a rope body 311; a hoist 312; a pulley 313; a first gear assembly 32; a first drive motor 321; a first rack 322; a first gear 323;

a fork 40; a guide rail 41;

a fork drive mechanism 50; a second drive motor 51; a second rack 52; the second gear 53;

a positioning member 60; a positioning drive mechanism 61;

a rail wheel 70; a rail-wheel motor 71.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A tray stacker 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 2.

A tray stacker 100 according to an embodiment of the present invention includes: the forklift truck comprises a truck frame 10, a rack 20, a lifting driving mechanism 30, a fork 40 and a fork driving mechanism 50.

Specifically, frame 20 is provided on frame 10 to be vertically movable, and lift driving mechanism 30 is connected between frame 10 and frame 20 to drive frame 20 to move up and down. That is, the frame 20 can reciprocate up and down along the carriage 10 by the driving of the elevating driving mechanism 30.

The forks 40 are movably mounted to the frame 20. The fork 40 is used to lift the pallet, when the frame 20 moves, the fork 40 on the frame will be driven to move up and down together, so that the pallet can be forked or stacked at different heights. The fork drive mechanism 50 is coupled between the forks 40 and the frame 20 and is operable to move the forks 40 about the frame 20 so that the forks 40 perform a certain motion to fork or hook the pallet.

The forks 40 comprise two sets of oppositely disposed forks, the two sets of forks 40 being movable in a direction towards each other to lift a pallet, and the two sets of forks 40 being movable in a direction away from each other to lower a pallet. Because set up two sets of fork 40 that can move about relatively, can use the relative both sides of tray, even area of contact is less between every group fork 40 and the tray, the tray can both atress support and keep balance at relative both ends, need not fork 40 and inserts the whole bottom of tray, and it is very easy to fork the tray.

The fork driving mechanism 50 can drive the fork 40 to move, for example, the fork 40 can be driven to move horizontally on the frame 20, the fork 40 can be driven to rotate on the frame 20, or even the fork 40 can be driven to rotate spirally on the frame 20, and the movement form of the fork 40 depends on the structure of the fork driving mechanism 50.

The tray stacking machine 100 is compact in structure and convenient to install, and can improve tray stacking efficiency.

In some embodiments of the present invention, the frame 10 includes a horizontal frame 11 and two sets of vertical frames 12 vertically disposed, the horizontal frame 11 is connected to the two sets of vertical frames 12, each set of vertical frames 12 is provided with a liftable rack 20, and each rack 20 is provided with a set of forks 40. The mullion 12 provides guidance and support for the raising and lowering of the frame 20, allowing the frame 20 to reciprocate up and down along the mullion 12.

The two sets of mullions 12 are spaced apart by a distance, the pallet can be placed between the two sets of mullions 12, and the two racks 20 are located on both sides of the pallet to drive the two sets of forks 40 to move up and down. The two sets of the vertical frames 12 and the transverse frame 11 connected between the two sets of the vertical frames are arranged, on one hand, the structure of the frame 10 is simplified, the structural processing is very easy, and the frame 20 is divided into two sets, so that each set of the fork 40 is independently supported by one set of the vertical frames 12, the interference is less when the pallet is lifted, and the selection space of the size of the tray which can be lifted is large. The stress of the whole frame 10 when the pallet is lifted can be basically kept balanced, and the stability is ensured.

Preferably, the two sets of racks 20 are moved up and down simultaneously, and the upper surfaces of the two sets of forks 40 are in a horizontal state.

In some embodiments, as shown in fig. 1, lift drive mechanism 30 includes: a first gear assembly 32, the first gear assembly 32 comprising: a first driving motor 321, a first rack 322, and a first gear 323. The first driving motor 321 is arranged on the frame 20, the first gear 323 is connected to the first driving motor 321, the first rack 322 is vertically arranged on the frame 10, and the first gear 323 is engaged with the first rack 322. The first gear assembly 32 can drive the frame 20 to reciprocate up and down on the mullion 12, and the first gear 323 and the first rack 322 are engaged to reduce the friction force of the lifting motion of the frame 20, so that the two sets of frames 20 can be lifted and lowered simultaneously. The rack 20 is driven to move up and down in a gear transmission mode, so that the bearing load is large, the transmission control accuracy is high, and the reliability is high.

Specifically, two ends of the frame 20 in a direction perpendicular to the moving direction of the fork 40 correspond to one first gear assembly 32, and the first racks 322 of the two first gear assemblies 32 are disposed on two opposite side walls of the frame 10. So set up, on the one hand can increase drive power, on the other hand makes frame 20 all atress at the both ends of the direction mutually perpendicular with fork 40 activity direction, guarantees the steady of frame 20 in the lift process.

Specifically, as shown in FIG. 2, first racks 322 are provided on both sides of the mullion 12.

In some embodiments of the present invention, as shown in fig. 1 and 2, the lifting drive mechanism 30 includes: the traction assembly 31, the traction assembly 31 has a rope 311, at least a part of the rope 311 is connected between the frame 20 and the top of the frame 10, and the traction assembly 31 pulls the frame 20 to lift by stretching the rope 311. The frame 20 is pulled to ascend and descend through the rope body 311, and the frame 20 has a good buffering effect and is not easy to clamp due to the flexible pulling structure.

The traction assembly 31 is matched with the first gear transmission assembly 32 to control the lifting of the rack 20, so that a double-safety effect is achieved on the lifting control of the rack 20, and the phenomenon that the rack 20 slips due to the overweight of a pallet fork 40 is avoided. Here, the string 311 may be a flexible string such as a common nylon string, and the string 311 may be a chain.

Specifically, the traction assembly 31 further includes a winch 312 and a pulley 313, and the rope body 311 is pulled by the winch 312, so that the tension is large and the load can be borne. When the pulling direction of the rope 311 needs to be diverted, the pulley 313 is arranged at the diverting part to reduce the friction force and avoid the rope 311 from being broken. Of course, in the embodiment of the present invention, a structure such as an air cylinder may also be adopted to pull the rope 311 to stretch, and this is not limited here.

Further, as shown in fig. 1, both ends of the frame 20 in a direction perpendicular to the moving direction of the fork 40 are connected with the rope 311, and the rope 311 connected to both ends is connected to the winding machine 312 through at least one pulley 313. Here, the rope 311 is disposed in such a manner that the frame 20 moves very smoothly.

Each end rope 311 may be connected to a winding machine 312, and for the sake of simplifying the structure, the two end ropes 311 may be wound by the same winding machine 312.

Specifically, the winding machine 312 is provided on the frame 10, and the winding machine 312 is provided on the lateral frame 11 for the convenience of the stretching exercise. More specifically, the hoist 312 includes a drum, a reducer. The pulleys 313 are provided on the frame 10, and may be provided at both ends of the cross frame 11. The rope body 311 is connected with the frame 20 after passing around the pulley 313, and one end of the rope body 311 can be wound and unwound by the winch 312; the other end of the rope 311 is connected to the top of the frame 20, so that the frame 20 is more easily lifted up or dropped down by the hoisting machine 312 and the rope 311.

In some embodiments of the present invention, as shown in FIG. 2, the fork drive mechanism 50 comprises: a second gear assembly, the second gear assembly comprising: a second drive motor 51, a second rack 52 and a second gear 53. The second driving motor 51 is arranged on the frame 20, the second gear 53 is connected to the second driving motor 51, the second rack 52 is transversely arranged on the pallet fork 40, and the second gear 53 is meshed with the second rack 52. The forks 40 are extendable and retractable with the second rack 52 by the fork drive mechanism 50. The second gear transmission assembly drives the fork 40 to stretch, so that the transmission force is large and the working reliability is high.

Optionally, the fork 40 is provided with a guide rail 41 which is consistent with the moving direction of the fork 40, so that the moving direction of the fork 40 can be limited, and meanwhile, the fork 40 is supported, and the fork 40 is prevented from being skewed and damaged after being impacted.

In some embodiments of the invention, further comprising: a positioning member 60 and a positioning driving mechanism 61. Wherein the positioning member 60 is movably disposed on the frame 20. The positioning elements 60 are in two sets, and the two sets of positioning elements 60 are adapted to rest on opposite side walls of the tray. The positioning driving mechanism 61 is disposed on the frame 20, and the positioning driving mechanism 61 is connected to the positioning member 60 to drive the positioning member 60 to move. The positioning members 60 are respectively arranged on opposite side walls of the pallet and used for clamping two side walls of the pallet when the pallet is lifted by the fork 40 so as to limit the pallet, so that the pallet is kept balanced and stable in the transportation process; in addition, when the pallet is released by the fork 40, the problem that the pallet moves along with the fork 40 when the fork 40 is withdrawn from the bottom of the pallet can be avoided, and the stacking of the pallets and the code wheels is facilitated.

Alternatively, the positioning driving mechanism 61 is a cylinder, so that the structure is small and low in cost.

Optionally, the positioning element 60 of the present invention is a baffle plate, an embedded groove can be added on the baffle plate, the thickness of the embedded groove is consistent with that of the side wall of the tray, so that the side edge of the tray can be clamped in the embedded groove, the positioning accuracy is higher, and the positioning element 60 is prevented from being disengaged from the tray.

Of course, the structure of the positioning member 60 in the embodiment of the present invention is not limited to the baffle, for example, the positioning member 60 may be a clip that is clipped on the upper and lower wall surfaces of the tray.

In some embodiments of the present invention, the bottom of the frame 10 is further provided with a rail wheel 70, and the rail wheel 70 is driven by a rail wheel motor 71, so that the tray stacker can be more intelligent and suitable for the AGV industry to travel along a rail.

Of course, in order to move the tray stacker 100, a common roller may be disposed at the bottom of the carriage 10, and the carriage 10 may be moved by manual pushing. In some embodiments, during operation in a factory, the bottom of the frame 10 may also be a sliding block, and the sliding block slides on a sliding rail on the ground.

The tray stacker 100 according to the embodiment of the present invention may be applied to stacking pallets in a logistics system, for example, stacking pallets dedicated to AGVs.

It should be noted that, with the wide use of AGVs in the logistics industry, the use demand of the tray dedicated for AGVs is obviously increased. Here, the AGV is an Automated Guided Vehicle (Automated Guided Vehicle) for short, and the AGV tray bears great, and some loads need to reach 1T, and in order to match the AGV load capacity, the tray needs to guarantee self intensity when satisfying the heavy load demand, and consequently, the AGV tray wide application of metal material preparation is in each project. The tray is designed into a thin side wall due to the consideration of reducing the dead weight, so that a forking opening cannot be reserved, and the side surface of the tray cannot be forked to stack the tray and stack the tray like the traditional tray. At present, no special automatic equipment is matched with the AGV metal tray, so that the stacking of the nonstandard metal trays is difficult. The tray stacking machine 100 disclosed by the embodiment of the invention is very easy to stack thin trays and can fill the blank of the logistics industry.

The tray stacking machine 100 provided by the embodiment of the invention has the advantages of compact structure, easiness in processing and manufacturing, safety, reliability and convenience in installation, improves the tray stacking efficiency, and fills the blank in the field of automatic stacking of heavy-load metal trays of AGV. The long-term significance lies in that, along with the application of AGV in the automatic field of commodity circulation by a wide margin, will be paid attention to and carried out in future AGV special tray, the formulation of goods shelves standard, the equipment development that piles up that satisfies in the AGV tray so also can be developed, AGV tray pile machine design and manufacturing will have wide market space in the future.

To better understand the solution of the embodiment of the present invention, the structure of the tray stacker 100 in one embodiment of the present invention is described below with reference to fig. 1 to 2.

As shown in fig. 1, a pallet stacker 100 comprises a frame 10 composed of a horizontal frame 11 and vertical frames 12, wherein the horizontal frame 11 is located between two parallel vertical frames 12, and is provided with two sets of parallel vertical frames 12, and the bottom of the frame 10 is provided with a track wheel 70. The transverse frame 11 is provided with a traction assembly 31, specifically, the middle part of the transverse frame 11 is provided with a winch 312, two sides of the transverse frame 11 are respectively provided with a pulley 313, and the winch 312 is connected with one end of the rope body 311. The rope 311 is provided with a plurality of groups, and the other end of the rope 311 is connected with the top of the frame 20 arranged on the vertical frame 12 after passing around the pulley 313.

As shown in fig. 2, each set of mullions 12 is provided with a liftable rack 20. The mullions 12 are respectively provided with a first rack 322 along the longitudinal direction, different parts of two ends of the frame 20 are respectively connected with a second driving motor 51 and a first gear 323, and the first gear 323 and the first rack 322 are engaged with each other, so that the frame 20 can move up and down along the first rack 322.

Each group of racks 20 is horizontally provided with a fork 40, the same group of racks 20 is provided with two forks 40 in parallel, and the opposite racks are provided with the forks 40 oppositely. The bottom of the fork 40 is connected with a second rack 52, the end part of a second gear 53 is connected with the frame 20, and the second gear 53 is meshed with the second rack 52. The second driving motor 51 is disposed on the frame 20 and drives the second gear 53 and the second rack 52 to move telescopically, so as to drive the fork to move telescopically. A positioning member 60 is provided at an upper portion of each fork 40 to limit both sides of the pallet, and the positioning member 60 performs a feeding motion by a positioning driving mechanism 61 (air cylinder). So that the pallets can be stably displaced and stacked under the telescopic action of the forks 40 and the positioning members 60.

In the description of the present invention, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., as used herein, are intended to refer to an orientation or positional relationship shown in the drawings, which is for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting.

In addition, the features of "first rack", "second rack", "first drive motor", "second drive motor" defined with "first", "second" may explicitly or implicitly include one or more of the features, which are not limited to a specific number nor to weight, order.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Two racks 20 are shown in fig. 2 for illustrative purposes, but it will be apparent to those skilled in the art after reading the above technical solutions that the solution can be applied to three or more racks 20, which also falls within the protection scope of the present invention.

The specific structure of other components of the tray stacker according to the embodiment of the present invention, such as the forks, the driving motor, the gears, the racks, and the operation of the stacking process, are known to those skilled in the art, and will not be described in detail herein.

In the description herein, references to the description of "one embodiment," "some embodiments," 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 do not necessarily 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A tray stacker, comprising:

a frame;

the frame is arranged on the frame in a way of being capable of lifting up and down;

the lifting driving mechanism is connected between the frame and the rack to drive the rack to lift;

the pallet fork is movably arranged on the rack;

the fork driving mechanism is connected between the fork and the rack to drive the fork to move; wherein the content of the first and second substances,

the pallet fork comprises two groups which are oppositely arranged, the two groups of pallet forks can move in the direction towards each other to lift the pallet, and the two groups of pallet forks can move in the direction away from each other to put down the pallet.

2. The tray stacker according to claim 1, further comprising:

the positioning pieces are movably arranged on the rack, the two groups of positioning pieces are suitable for being abutted against opposite side walls of the tray;

the positioning driving mechanism is arranged on the rack and connected with the positioning piece to drive the positioning piece to move.

3. The tray stacker according to claim 2, wherein said positioning drive mechanism is an air cylinder.

4. The tray stacking machine according to claim 1, wherein the frame comprises a horizontal frame and two sets of vertical frames which are vertically arranged, the horizontal frame is respectively connected with the two sets of vertical frames, each set of vertical frames is provided with a liftable rack, and each rack is provided with a set of forks.

5. The tray stacker according to claim 1, wherein said lift driving mechanism comprises: the traction assembly is provided with a rope body, at least part of the rope body is connected between the rack and the top of the frame, and the traction assembly pulls the rack to lift by stretching the rope body.

6. The tray stacker according to claim 5, wherein said pulling assembly comprises:

the winch is arranged on the frame and used for winding and unwinding the rope body;

the pulley is arranged on the frame, and the rope body is connected with the rack after passing around the pulley.

7. The tray stacker as claimed in claim 6, wherein the rope is connected to both ends of the frame in a direction perpendicular to the direction of movement of the forks, and the rope connected to both ends is connected to the winch through at least one pulley.

8. A pallet stacker according to claim 1 or 5, wherein said lift drive mechanism comprises: a first gear assembly, the first gear assembly comprising: the first driving motor is arranged on the rack, the first gear is connected to the first driving motor, the first rack is vertically arranged on the frame, and the first gear is meshed with the first rack.

9. The pallet stacker according to claim 8, wherein said frame is provided with one of said first gear assemblies at each of both ends in a direction perpendicular to a direction in which said forks move, and said first racks of said two first gear assemblies are provided on opposite side walls of said frame.

10. The pallet stacker of claim 1 wherein said fork drive mechanism comprises: a second gear assembly, the second gear assembly comprising: the second driving motor is arranged on the rack, the second gear is connected to the second driving motor, the second rack is transversely arranged on the goods fork, and the second gear is meshed with the second rack.