CN213770239U

CN213770239U - Tray conveying device and display screen production line

Info

Publication number: CN213770239U
Application number: CN202022078843.7U
Authority: CN
Inventors: 郑晨熹
Original assignee: Wuhan Jingce Electronic Group Co Ltd; Suzhou Hirose Opto Co Ltd
Current assignee: Wuhan Jingce Electronic Group Co Ltd; Suzhou Hirose Opto Co Ltd; Wuhan Jingce Electronic Technology Co Ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-07-23
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to a display screen technical field especially relates to a tray conveyor and display screen production line. The utility model provides a tray conveying device, move the year material module of folding including lower floor's transfer chain, upper transfer chain, frame, detection piece and promotion location. The lower layer conveying line is arranged on the lower layer of the rack, the upper layer conveying line is arranged on the upper layer of the rack, the lifting, positioning and transferring stacking module is used for lifting a full-load tray to the upper layer of the rack, and after a workpiece in the full-load tray is used up, the empty tray is stacked on the upper layer conveying line. The utility model provides a tray conveyor, upper and lower bilayer carry the tray, and occupation space is little, goes up unloading efficiently, can cooperate whole display screen production line beat, increase of production and quality. The utility model provides a display screen production line, through using above-mentioned tray conveyor, the space occupies down, and production efficiency is high.

Description

Tray conveying device and display screen production line

Technical Field

The utility model relates to a display screen technical field especially relates to a tray conveyor and display screen production line.

Background

In the modern industrial automation production field, the requirement on the automation of equipment is higher and higher, most of the existing automatic equipment in the LCD/OLED display field is semi-manual, small in quantity and low in speed, under the condition, more personnel are needed for operation, the efficiency is low, and meanwhile, a lot of uncertain human factors are increased.

At present, generally, adopt the manipulator to go up unloading, the portal frame need be set up to the unloading on the manipulator, and occupation space is big, and the manipulator produces the interference with the portal frame easily, influences unloading efficiency on going up.

Therefore, a tray conveying apparatus is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a tray conveying device, the space occupies for a short time, goes up unloading efficiently, cooperates whole production line beat, increase of production and quality.

A second object of the utility model is to provide a display screen production line, through using above-mentioned tray conveyor, the space occupies down, and production efficiency is high.

In order to realize the purpose, the following technical scheme is provided:

on one hand, the tray conveying device comprises a rack, a lower layer conveying line, an upper layer conveying line and a lifting, positioning, transferring and stacking module, wherein the lower layer conveying line is arranged at the lower layer of the rack and used for receiving and conveying full-loaded multi-layer trays; the upper layer conveying line is arranged on the upper layer of the rack and used for conveying and transferring out the unloaded multilayer tray; the lifting, positioning, transferring and stacking module is arranged on the rack and used for lifting a full-load tray to the upper layer of the rack, and after the workpieces in the full-load tray are used up, stacking an empty-load tray on the upper layer conveying line.

As an alternative of the tray conveying device, the lifting, positioning, transferring and stacking module comprises a tray lifting mechanism, a tray transferring mechanism, a tray stacking mechanism and a tray dividing and positioning mechanism, wherein the tray lifting mechanism can lift a tray fully loaded on the lower conveying line to the upper layer of the rack; the tray dividing and positioning mechanism can clamp the single tray fully loaded at the top on the tray lifting mechanism; the tray transferring mechanism can receive the trays on the tray dividing and positioning mechanism and transfer the trays to the position below the tray stacking mechanism; the tray stacking mechanism can clamp the trays on the tray transfer mechanism and can stack a plurality of trays.

As an alternative to the pallet conveying device, the pallet lifting mechanism includes a lifting frame and a lifting and lowering driving member, the lifting frame can be located below the pallet on the lower layer conveying line, and the lifting and lowering driving member can drive the lifting frame to drive the pallet to lift and lower in the vertical direction.

As an alternative of the tray conveying device, the tray dividing and positioning mechanism comprises two positioning components symmetrically arranged on the rack; the locating component comprises a locating clamping plate and a locating driving piece, the locating driving piece can drive the locating clamping plate to move along the conveying direction of the tray perpendicular to the conveying direction, so that the locating clamping plate in the locating component moves oppositely to clamp the tray uppermost on the lifting frame.

As tray conveyor's alternative, the tray moves and carries the mechanism and include the tray loading board, move and carry the translation driving piece, move and carry lift driving piece and connecting plate, it sets up to move and carry the lift driving piece on the connecting plate, move the output that carries the lift driving piece with tray loading board fixed connection, and the drive the tray loading board goes up and down along vertical direction, move and carry the translation driving piece and can drive the connecting plate is along tray direction of delivery reciprocating motion.

As an alternative of the tray conveying device, the lifting frame comprises a first supporting plate and a second supporting plate which are arranged at intervals and used for supporting the tray, and the tray bearing plate can move between the first supporting plate and the second supporting plate to bear the tray on the lifting frame.

As an alternative of the tray conveying device, the tray stacking mechanism comprises two stacking assemblies symmetrically arranged on the rack; fold the material subassembly including fold material splint, fold material lift driving piece, mounting bracket and fold material centre gripping driving piece, fold material splint with it all sets up to fold material lift driving piece on the mounting bracket, it can drive to fold material centre gripping driving piece the mounting bracket removes along the direction of delivery of perpendicular to tray, so that two fold the material splint centre gripping of folding in the material subassembly tray on the tray loading board, it can drive to fold material lift driving piece fold material splint and go up and down along vertical direction.

As an alternative of the tray conveying device, the lower conveying line comprises a feeding conveying mechanism which is conveyed along a first direction and a lower feeding conveying mechanism which is conveyed along a second direction, the first direction is perpendicular to the second direction, and the feeding conveying mechanism is used for receiving externally supplied multi-layer trays; at least part of the lower feeding and conveying mechanism extends to the position below the conveying end of the feeding and conveying mechanism, and the feeding and conveying mechanism can lift so that the lower feeding and conveying mechanism can drive the tray to move along the second direction.

As an alternative to the tray conveying device, the upper conveying line includes an upper feeding conveying mechanism for conveying in a third direction and a discharging conveying mechanism for conveying in a fourth direction, the third direction is parallel to and opposite to the second direction, the fourth direction is parallel to and opposite to the first direction, and the upper feeding conveying mechanism is used for receiving the trays conveyed by the lifting, positioning, transferring and stacking module; at least part of the upper feeding conveying mechanism extends to the position above the conveying end of the discharging conveying mechanism, and the discharging conveying mechanism can lift so that the discharging conveying mechanism can drive the tray to move along the fourth direction and rotate the tray out.

In another aspect, a display screen production line is provided, which comprises the tray conveying device.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a tray conveying device, move the year material module of folding including lower floor's transfer chain, upper transfer chain, frame, detection piece and promotion location. The lower layer conveying line is arranged on the lower layer of the rack, the upper layer conveying line is arranged on the upper layer of the rack, the lifting, positioning and transferring stacking module is used for lifting a full-load tray to the upper layer of the rack, and after a workpiece in the full-load tray is used up, the empty tray is stacked on the upper layer conveying line. The utility model provides a tray conveyor, upper and lower bilayer carry the tray, and occupation space is little, goes up unloading efficiently, can cooperate whole display screen production line beat, increase of production and quality.

The utility model provides a display screen production line, through using above-mentioned tray conveyor, the space occupies down, and production efficiency is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural view of a loading tray of a tray conveying device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a tray conveying device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lower layer conveying line and a tray lifting mechanism provided in an embodiment of the present invention;

fig. 4 is a schematic structural view of a tray lifting mechanism and a blanking conveying mechanism provided in the embodiment of the present invention;

fig. 5 is a schematic structural view of a tray dividing positioning mechanism, a tray transferring mechanism and a tray stacking mechanism provided in the embodiment of the present invention;

fig. 6 is a schematic structural view of the upper conveying line provided in the embodiment of the present invention.

Reference numerals:

100-a tray;

1-lower layer conveying line; 11-a feed conveying mechanism; 12-a lower feeding and conveying mechanism; 13-lower guard plate;

2-upper layer conveying line; 21-an upper feeding and conveying mechanism; 22-a discharge conveying mechanism; 23-upper guard board;

3-a pallet lifting mechanism; 31-a lifting frame; 32-lifting the lifting drive member;

4-a tray transfer mechanism; 41-a pallet carrier plate; 42-transfer translation drive; 43-a positioning plate; 44-transferring a lifting driving member; 45-connecting plates;

5-a tray stacking mechanism; 51-stacking clamping plates; 52-stacking lifting driving piece; 53-a mounting frame; 54-stack clamping drive;

6-a disc separating and positioning mechanism; 61-positioning the clamping plate; 62-positioning the driving member;

7-a frame;

8-detecting element.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described below by referring to the drawings and the detailed description.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1-2, the pallet conveying apparatus provided in this embodiment includes a lower conveyor line 1, an upper conveyor line 2, a frame 7, a detecting member 8, and a lifting, positioning, transferring and stacking module. Wherein, lower floor's transfer chain 1 sets up the lower floor at frame 7, and upper transfer chain 2 sets up the upper strata at frame 7, promotes the location and moves to carry and fold the material module and be used for promoting full-load tray 100 to the upper strata of frame 7, treats that the work piece in the full-load tray 100 runs out the back, stacks unloaded tray 100 on upper transfer chain 2. The tray conveyor that this embodiment provided, upper and lower bilayer carries tray 100, and occupation space is little, goes up unloading efficiently, can cooperate whole display screen production line beat, improves output and quality.

Note that, in the present embodiment, the first direction and the fourth direction refer to a direction parallel to the width direction of the rack 7, the second direction and the third direction refer to a direction parallel to the length direction of the rack 7, and the first direction, the second direction, the third direction, and the fourth direction all refer to arrow directions in the drawing.

Optionally, a plurality of detecting members 8 are installed on the rack 7, and the detecting members 8 are mainly used for detecting the number of layers of the tray 100, so as to determine the number of supplied materials. Illustratively, the detecting members 8 are disposed at the feeding end and the conveying portion of the lower conveying line 1 to detect the number of layers of the tray 100 in real time. The conveying part and the discharging part of the upper conveying line 2 are also provided with detection pieces 8 so as to detect the number of layers of the tray 100 in real time.

In the present embodiment, the detecting member 8 is used to detect the height of the incoming tray 100, and then the system calculates the number of layers of the incoming tray 100 according to the thickness of the single tray 100.

Preferably, the lifting, positioning, transferring and stacking module comprises a tray lifting mechanism 3, a tray transferring mechanism 4, a tray stacking mechanism 5 and a tray dividing and positioning mechanism 6. A pallet lifting mechanism 3 is provided at the end of the frame 7, and the pallet lifting mechanism 3 is used to transfer the loaded pallets 100 on the lower tier of the frame 7 to the upper tier of the frame 7. The tray dividing positioning mechanism 6, the tray transfer mechanism 4, and the tray stacking mechanism 5 are sequentially disposed on the upper layer of the rack 7 in the conveying direction of the trays 100.

The tray dividing positioning mechanism 6 clamps and positions the tray 100 on the tray lifting mechanism 3 at the top so as to be convenient for the manipulator to transfer the workpieces in the tray 100 away; after the workpieces on the full-load tray 100 are used up, the tray transfer mechanism 4 transfers the no-load tray 100 to the station of the tray stacking mechanism 5; the tray stacking mechanism 5 is used for clamping the trays 100 on the tray transfer mechanism 4, so that the tray transfer mechanism 4 is in an idle state, the tray transfer mechanism 4 is convenient to transfer the second tray 100, the tray stacking mechanism 5 and the tray transfer mechanism 4 are matched to stack a plurality of trays 100, the multilayer trays 100 are placed on the upper-layer conveying line 2, a plurality of trays 100 are transported at one time, and the operation efficiency is improved.

The working process of the tray conveying device provided by the embodiment is as follows: 1) the lower layer conveying line 1 receives multiple layers or one layer of full-load trays 100 on the AGV trolley and conveys the full-load trays 100 to a position of a tray lifting mechanism 3; 2) the tray lifting mechanism 3 lifts all the trays 100 on the lower layer conveying line 1 to the station of the tray separating positioning mechanism 6; 3) the tray dividing positioning mechanism 6 clamps and positions the single uppermost tray 100 on the tray lifting mechanism 3, so that a manipulator can conveniently grab the workpieces in the full-load tray 100; 4) the tray transferring mechanism 4 is moved to the tray dividing positioning mechanism 6, and the unloaded tray 100 is transferred to the station of the tray stacking mechanism 5; 5) the tray stacking mechanism 5 clamps the trays 100, and when the second tray 100 is empty, the empty trays 100 are stacked together by matching with the tray transferring mechanism 4; 6) the tray 100 that upper transfer chain 2 will stack is carried to the AGV dolly on, accomplishes a tray unloading process so far.

As shown in fig. 3, the lower conveyor line 1 includes a feeding conveying mechanism 11, a lower feeding conveying mechanism 12 and a lower guard plate 13, wherein the lower guard plate 13 is disposed on the outer sides of the feeding conveying mechanism 11 and the lower feeding conveying mechanism 12 to limit the multilayer tray 100 and prevent the tray 100 from falling.

Specifically, the feeding conveying mechanism 11 conveys along a first direction, and the lower feeding conveying mechanism 12 conveys along a second direction, wherein the first direction is perpendicular to the second direction. Wherein, the outer side and the front side of the feeding and conveying mechanism 11 are both provided with lower guard plates 13, both sides of the conveying direction of the lower feeding and conveying mechanism 12 are both provided with lower guard plates 13, a plurality of lower guard plates 13 enclose into an L-shaped lower layer conveying path, and the lower guard plates 13 can prevent the full-load tray 100 from falling off from the rack 7 due to the movement inertia.

Preferably, at least a portion of the lower feeding conveyor mechanism 12 extends below the conveying end of the feeding conveyor mechanism 11, and the feeding conveyor mechanism 11 can be lifted, so that the lower feeding conveyor mechanism 12 can drive the tray 100 to move in the second direction.

Alternatively, the input material conveying mechanism 11 includes a roller conveyor and a lifting driving mechanism capable of driving the roller conveyor to lift so that the roller conveyor receives the full-loaded trays 100 on the AGV cart and places the full-loaded trays 100 on the lower feeding conveying mechanism 12, facilitating the lower feeding conveying mechanism 12 to convey the trays 100.

The lower feeding and conveying mechanism 12 comprises a plurality of belt conveyors arranged in a second direction, the conveying surface of each belt conveyor is flush, at least one belt conveyor is arranged in the interval between the rollers of the roller conveyor, so that the tray 100 on the roller conveyor is conveyed in the second direction, and the tray 100 is transferred to the position of the tray lifting mechanism 3.

In short, during the pan feeding, band conveyer is located the cylinder below, and when needs carry full-load tray 100 to tray hoist mechanism 3, the cylinder descends, and band conveyer's belt and tray 100 direct contact then drive band conveyer work, can shift tray 100 from pan feeding conveyor 11 stations to tray hoist mechanism 3 stations department.

In this embodiment, the working process of the lower layer conveying line 1 is as follows: the feeding conveying mechanism 11 receives full-load trays 100 on the AGV trolley and conveys the trays 100 along a first direction; then, the conveying rollers of the feeding and conveying mechanism 11 are lowered, the tray 100 is dropped onto the lower feeding and conveying mechanism 12, and the lower feeding and conveying mechanism 12 is started to convey the tray 100 in the direction of the tray lifting mechanism 3.

Optionally, a detection piece 8 is arranged at the inlet end of the feeding conveying mechanism 11, and when the AGV cart is fed, the detection piece 8 detects the number of layers of the incoming material tray 100.

As shown in fig. 4 in conjunction with fig. 3, the pallet lifting mechanism 3 includes a lifting frame 31 and a lifting driving member 32, the lifting frame 31 is located between two belts of the belt conveyor, and the lifting frame 31 is used for carrying the pallet 100 on the belt conveyor; the lifting driving member 32 can drive the lifting frame 31 to lift the tray 100 to the upper layer of the frame 7.

Preferably, the tray lifting mechanism 3 further includes a screw, the lifting frame 31 is fixedly connected to a nut seat on the screw, and the lifting driving member 32 drives the screw to rotate, so as to lift the lifting frame 31.

Illustratively, the lift drive 32 is a motor.

As shown in fig. 5 and fig. 2, after the tray 100 is lifted to the upper layer of the rack 7 by the tray lifting mechanism 3, the tray lifting mechanism 3 drives the rest full-loaded trays 100 to move down by clamping and positioning the tray 100 at the top by the tray separating and positioning mechanism 6; when the workpieces on the tray 100 clamped by the tray dividing positioning mechanism 6 are used up, the tray is moved to the position below the tray 100 by the tray transferring mechanism 4, the tray 100 is loosened by the tray dividing positioning mechanism 6, and the tray 100 falls onto the tray transferring mechanism 4 and is transferred to the position of the station 5 of the stacking mechanism by the tray transferring mechanism 4; then the stacking mechanism 5 holds the tray 100; when the second tray 100 is unloaded, the tray transfer mechanism 4 is matched with the tray dividing positioning mechanism 6 to transfer the second tray 100 to the station of the stacking mechanism 5, the second tray 100 is positioned below the first tray 100, the stacking mechanism 5 drives the first tray 100 to be stacked on the second tray 100, then the two trays 100 are clamped simultaneously, the stacking of the trays 100 is realized, the stacking process of other trays 100 is the same as that of the second tray 100, and the description is omitted; and finally, the stacked empty-load trays 100 are transferred to the AGV by the upper conveying line 2.

As shown in fig. 5, the tray positioning mechanism 6 includes two positioning assemblies symmetrically disposed on the frame 7, and the two positioning assemblies can cooperate with the uppermost tray 100 on the clamping lifting frame 31.

Preferably, the positioning assemblies include a positioning clamp 61 and a positioning clamp drive 62, and the positioning clamp drives 62 of the two positioning assemblies drive the positioning clamp 61 to move toward each other in the first and fourth directions to clamp the uppermost full pallet 100 on the lifting frame 31, respectively.

As shown in fig. 5, the tray transfer mechanism 4 includes a tray loading plate 41, a transfer translation drive member 42, a positioning plate 43, a positioning drive member (not shown), a transfer lifting drive member 44, and a connection plate 45.

The transferring and translating driving component 42 is disposed on the frame 7, and the transferring and translating driving component 42 can drive the tray loading plate 41 to move to the position below the tray dividing and positioning mechanism 6 along the second direction and to move to the position below the tray stacking mechanism 5 along the third direction.

Preferably, the lifting frame 31 includes a first supporting plate and a second supporting plate spaced apart from each other for supporting the tray 100, and the tray bearing plate 41 can move between the first supporting plate and the second supporting plate to receive the tray 100 on the lifting frame 31.

Two positioning plates 43 are disposed on both sides of the tray loading plate 41 in the first direction, and a positioning driving member can drive the positioning plates 43 to move toward each other to position the tray 100. Preferably, the position of the tray loading plate 41 near one of the positioning plates 43 is provided with a graduation line, and after the positioning plate 43 abuts against the front end and the rear end of the tray 100, the position of the positioning plate 43 on the graduation line can be visually detected through the CCD to accurately determine the position of the tray 100.

The transfer lifting driving member 44 is disposed on the connecting plate 45 and below the tray carrying plate 41, and is used for driving the tray carrying plate 41 to lift, so that the tray stacking mechanism 5 clamps the tray 100 on the tray carrying plate 41.

Preferably, the shifting and translating driving component 42 in this embodiment is a motor, the tray shifting and translating mechanism 4 further includes a transmission rod and a screw rod component, the two screw rod components are respectively fixed at two sides of the rack 7, two ends of the connecting plate 45 are respectively fixedly connected with the output ends (screw rod nut seats) of the screw rod components at the same side, and the shifting and translating driving component 42 drives the two screw rod components to work through the transmission rod, so that the connecting plate 45 drives the tray bearing plate 41 to move along the third direction and the second direction. Further, the transfer lifting drive 44 is provided on the connection plate 45, and an output end of the transfer lifting drive 44 is fixedly connected to the tray support plate 41.

The transfer lift drive 44 may illustratively be an air cylinder.

As shown in fig. 5, the tray stacking mechanism 5 includes stacking assemblies, two stacking assemblies are symmetrically disposed on the frame 7, and the two stacking assemblies can cooperate with the tray 100 on the holding tray transfer mechanism 4 to lift the tray 100.

Preferably, the stacking assembly comprises a stacking clamp plate 51, a stacking lifting drive 52, a mounting frame 53 and a stacking clamping drive 54.

The stacking clamping plates 51 are arranged on the mounting frames 53, the mounting frames 53 are movably arranged on the machine frame 7, and the stacking clamping driving member 54 can drive the mounting frames 53 to move along the first direction or the fourth direction, so that the two mounting frames 53 drive the two stacking clamping plates 51 to move towards each other to clamp the tray 100 on the tray bearing plate 41.

The stacking lifting driving member 52 is disposed on the mounting frame 53, and the stacking lifting driving member 52 can drive the stacking clamping plate 51 to move in the vertical direction, so as to lift the tray 100, thereby facilitating the stacking of the tray 100.

For example, the stack lift drive 52 may be a pneumatic cylinder. The stack clamp drive 54 may also be a pneumatic cylinder.

As shown in fig. 6 in conjunction with fig. 1, when all empty pallets 100 are stacked, the stacking clamp 51 places the pallets 100 on the pallet loading plate 41, the transfer lifting driving member 44 drives the pallet loading plate 41 to slowly descend, and the pallets 100 on the pallet loading plate 41 are positioned on the upper conveyor line 2, and then the empty pallets 100 are transferred out from the upper conveyor line 2.

As shown in fig. 6, the upper conveyor line 2 includes an upper feeding and conveying mechanism 21, an output conveying mechanism 22, and an upper guard plate 23, where the upper guard plate 23 is disposed on the outer sides of the output conveying mechanism 22 and the upper feeding and conveying mechanism 21, so as to limit the multilayer tray 100 and prevent the tray 100 from falling.

The upper feeding and conveying mechanism 21 conveys along a third direction, the discharging and conveying mechanism 22 conveys along a fourth direction, the third direction is perpendicular to the fourth direction, the third direction is parallel to the second direction and opposite in direction, and the fourth direction is parallel to the first direction and opposite in direction. Both sides of the conveying direction of the upper feeding and conveying mechanism 21 are provided with upper guard plates 23, both the outer side and the front side of the discharging and conveying mechanism 22 are provided with the upper guard plates 23, the upper guard plates 23 surround to form an L-shaped upper conveying path, and the upper guard plates 23 can prevent the no-load tray 100 from falling off the rack 7 due to movement inertia.

Preferably, the upper feeding and conveying mechanism 21 is used for receiving the tray 100 conveyed by the lifting, positioning, transferring and stacking module; at least part of the upper feeding and conveying mechanism 21 extends to the upper side of the conveying end of the discharging and conveying mechanism 22, and the discharging and conveying mechanism 22 can be lifted, so that the discharging and conveying mechanism 22 can drive the tray 100 to move along the fourth direction and rotate out the tray 100.

Alternatively, the upper feeding and conveying mechanism 21 includes a plurality of belt conveyors arranged in a third direction, and the conveying surface of each belt conveyor is flush, wherein at least one belt conveyor is arranged in the space between the rollers of the roller conveyor, and at least one belt conveyor is arranged below the tray stacking mechanism 5, so as to realize the movement of the tray 100 from the position of the tray stacking mechanism 5 to the position of the discharging and conveying mechanism 22.

Preferably, the discharging conveying mechanism 22 includes a roller conveyor and a lifting driving mechanism, wherein the rollers of the roller conveyor are arranged in a staggered manner with respect to the belt conveyor, and the lifting driving mechanism can drive the roller conveyor to lift, so that the rollers lift the empty tray 100 on the belt conveyor, and then the rollers rotate to convey the tray 100 to the AGV trolley outside the rack 7.

In short, when the discharging conveying mechanism 22 is not started for conveying, the roller is located below the belt conveyor, and when the empty-load tray 100 needs to be rotated out, the roller is moved upwards to be directly abutted against the tray 100, and then the tray 100 is conveyed by driving the roller to rotate.

In the actual production process, a unfilled corner is usually provided on the tray 100, and a fool-proof sensor is provided on the frame 7 for detecting whether the incoming material direction of the tray 100 is wrong. The principle is that a foolproof sensor is arranged below or above a position corresponding to the unfilled corner of the tray 100, when the tray 100 is correctly fed, the unfilled corner of the tray 100 is positioned above or below the foolproof sensor, and no obstacle is arranged above or below the foolproof sensor; and when tray 100 came material direction wrong, there was the obstacle in the top or the below of preventing slow-witted sensor, prevent that slow-witted sensor can detect the corner of tray 100 this moment to come out signal transmission, tray conveyor and other equipment stop work, improve the product yields.

This embodiment still provides a display screen production line, through using above-mentioned tray conveyor, can occupation space be little, goes up unloading efficient, can cooperate whole display screen production line beat, increase of production and quality.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A tray conveying apparatus, characterized by comprising:

a frame (7);

the lower layer conveying line (1) is arranged at the lower layer of the rack (7) and is used for receiving and conveying full-loaded multi-layer trays (100);

the upper layer conveying line (2) is arranged on the upper layer of the rack (7) and is used for conveying and transferring the empty multilayer tray (100);

the lifting, positioning, transferring and stacking module is arranged on the rack (7) and used for lifting a full-load tray (100) to the upper layer of the rack (7), and stacking an empty tray (100) on the upper layer conveying line (2) after workpieces in the full-load tray (100) are used up.

2. The tray conveying device according to claim 1, wherein the lifting, positioning, transferring and stacking module comprises a tray lifting mechanism (3), a tray transferring mechanism (4), a tray stacking mechanism (5) and a tray dividing and positioning mechanism (6), and the tray lifting mechanism (3) can lift a tray (100) fully loaded on the lower conveying line (1) to an upper layer of the rack (7); the tray dividing and positioning mechanism (6) can clamp the single tray (100) fully loaded at the top of the tray lifting mechanism (3); the tray transferring mechanism (4) can receive the trays (100) on the tray dividing positioning mechanism (6) and transfer the trays (100) to the position below the tray stacking mechanism (5); the tray stacking mechanism (5) can clamp the trays (100) on the tray transfer mechanism (4) and can stack a plurality of trays (100).

3. The pallet conveying device according to claim 2, characterized in that the pallet lifting mechanism (3) comprises a lifting frame (31) and a lifting driving member (32), the lifting frame (31) can be located below the pallet (100) on the lower conveyor line (1), and the lifting driving member (32) can drive the lifting frame (31) to drive the pallet (100) to lift in the vertical direction.

4. The pallet conveying device according to claim 3, characterized in that the pallet dividing positioning mechanism (6) comprises two positioning components symmetrically arranged on the frame (7); the locating component comprises a locating clamping plate (61) and a locating clamping plate driving part (62), wherein the locating clamping plate driving part (62) can drive the locating clamping plate (61) to move along the conveying direction perpendicular to the tray (100) so as to enable the locating clamping plate (61) in the locating component to move oppositely to clamp the uppermost tray (100) on the lifting frame (31).

5. The tray conveying device according to claim 4, wherein the tray transferring mechanism (4) comprises a tray loading plate (41), a transferring translation driving member (42), a transferring lifting driving member (44) and a connecting plate (45), the transferring lifting driving member (44) is arranged on the connecting plate (45), an output end of the transferring lifting driving member (44) is fixedly connected with the tray loading plate (41) and drives the tray loading plate (41) to lift in a vertical direction, and the transferring translation driving member (42) can drive the connecting plate (45) to reciprocate along a conveying direction of the tray (100).

6. The pallet conveying device according to claim 5, characterized in that the lifting frame (31) comprises a first and a second support plate arranged at a distance for supporting a pallet (100), the pallet carrying plate (41) being movable between the first and the second support plate for receiving a pallet (100) on the lifting frame (31).

7. The pallet conveying device according to claim 5, characterized in that the pallet stacking mechanism (5) comprises two stacker assemblies symmetrically arranged on the machine frame (7); fold the material subassembly including fold material splint (51), fold material lift driving piece (52), mounting bracket (53) and fold material centre gripping driving piece (54), fold material splint (51) with it all sets up to fold material lift driving piece (52) on mounting bracket (53), it can drive to fold material centre gripping driving piece (54) mounting bracket (53) are removed along the direction of delivery of perpendicular to tray (100), so that two fold material splint (51) centre gripping in the material subassembly tray (100) on the tray loading board (41), it can drive to fold material lift driving piece (52) it goes up and down along vertical direction to fold material splint (51).

8. The pallet conveyor arrangement according to any of the claims 1-7, characterized in that the lower conveyor line (1) comprises an input conveyor means (11) for conveying in a first direction and a lower input conveyor means (12) for conveying in a second direction, the first direction being perpendicular to the second direction, the input conveyor means (11) being adapted to receive externally supplied multi-layered pallets (100); at least part of the lower feeding and conveying mechanism (12) extends to the lower part of the conveying end of the feeding and conveying mechanism (11), and the feeding and conveying mechanism (11) can be lifted, so that the lower feeding and conveying mechanism (12) can drive the tray (100) to move along a second direction.

9. The pallet conveyor device according to claim 8, characterized in that the upper conveyor line (2) comprises an upper feeding conveyor mechanism (21) for conveying in a third direction parallel to and facing opposite to the second direction and an outfeed conveyor mechanism (22) for conveying in a fourth direction parallel to and facing opposite to the first direction, the upper feeding conveyor mechanism (21) being adapted to receive pallets (100) conveyed by the lift-positioned transfer and stacking module; at least part of the upper feeding conveying mechanism (21) extends to the position above the conveying end of the discharging conveying mechanism (22), and the discharging conveying mechanism (22) can be lifted, so that the discharging conveying mechanism (22) can drive the tray (100) to move along the fourth direction and rotate out the tray (100).

10. A display screen production line, characterized by comprising a pallet transport apparatus according to any one of claims 1-9.