CN216189184U

CN216189184U - Tray cyclic feeding and storing device

Info

Publication number: CN216189184U
Application number: CN202122482094.9U
Authority: CN
Inventors: 宾兴; 王金军; 黄宗运; 李太松; 杨汀
Original assignee: Zhongshan Xinghe Automation Co ltd
Current assignee: Zhongshan Xinghe Automation Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-04-05
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a tray circulating feeding and storing device which comprises a rack, a lifting mechanism, a horizontal transmission mechanism, a tray taking mechanism, a tray carrier and a tray storing device, wherein the rack is provided with a lifting mechanism; the rack is horizontally arranged, a horizontal processing plane is arranged at the top of the rack, and working stations and disk storage stations are arranged on the horizontal processing plane at intervals; the lifting mechanism is vertically arranged on the side part of the frame; the horizontal transmission mechanism is horizontally arranged below the horizontal processing plane of the rack and is vertically arranged corresponding to the working station; the tray taking mechanism is vertically arranged between the horizontal transmission mechanism and the working station; the tray carrier is slidably arranged on a slide rail of the horizontal processing plane; the disk storage device is arranged on a disk storage station on the upper layer of the rack. The utility model can be suitable for the feeding process of the material tray and the single-rail jig in the automatic assembly process, realizes the automatic circular flow of the material tray along a rectangular path, effectively reduces the time consumed by replacing the material tray, and improves the whole-line productivity.

Description

Tray cyclic feeding and storing device

Technical Field

The utility model relates to the field of automatic production, in particular to a tray circulating feeding and storing device for automatic feeding and material assembling and processing of an automatic production line.

Background

The automatic production device has the advantages that the automatic production device can automatically complete various production and processing by replacing manual work with machines, and in the field of automatic equipment, because a produced product generally consists of a plurality of scattered parts, in the actual production process, various parts need to be automatically assembled through equipment, so that a complete product structure is formed. Therefore, the ubiquitous production process for automatic assembly and processing of various materials is applied to multiple fields, and the production requirements for automatic assembly of the materials are met for various intelligent terminal devices, products such as mobile phones, tablet computers, intelligent watches, batteries and power supplies, various daily products and toys. Because the types and specifications of materials in the automatic assembly process are different, the existing automatic assembly technology generally adopts respective assembly equipment aiming at different materials, and standardized universal assembly equipment is difficult to form.

For the automatic assembly of materials, because different materials need to be assembled, the assembled materials (such as various electronic components) and substrate materials (such as PCB) are involved; therefore, the automatic material assembling process integrally comprises three process sections, namely an automatic material loading process of the assembled material, a material loading process of the substrate material and an automatic assembling process of the assembled material and the substrate material.

For the feeding process of the assembled materials, the existing automatic feeding process comprises vibration disc feeding, material belt feeding, Tray disc feeding and the like, and different feeding modes are selected according to different specifications of the materials. The Tray is used for bearing the assembled materials in the assembling, processing and detecting processes, a plurality of materials can be loaded in a single Tray under the general condition, and meanwhile, a plurality of trays are stacked together to integrally feed in order to ensure continuous feeding. The traditional material tray feeding technology is mainly that a material tray loaded with materials is manually conveyed to a material taking station, the materials are taken down from the material taking station after the materials are taken out, and a new full-load material tray is placed again; the production efficiency of the feeding mode of the charging tray is low, and the capacity requirement of a modern automatic production line cannot be met. Therefore, for promoting charging tray feeding efficiency, the technical problem that needs to be solved includes automatic feeding, the material taking tray, get the material, empty charging tray circulation deposit dish material loading etc. that a plurality of charging trays stacked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides a material tray circular feeding and storing device which is suitable for a material tray and single-rail jig feeding process in an automatic assembly process, realizes the automatic circular flow of the material tray along a rectangular path, effectively reduces the time consumed by replacing the material tray, and improves the whole-line productivity.

The technical scheme adopted by the utility model is as follows: a tray circular feeding and storing device comprises a rack, a lifting mechanism, a horizontal transmission mechanism, a tray taking mechanism, a tray carrier and a tray storing device; the rack is horizontally arranged, a horizontal processing plane is arranged at the top of the rack, and working stations and disk storage stations are arranged on the horizontal processing plane at intervals, wherein the working stations horizontally extend to the outer side of the rack, and are connected through sliding rails; the lifting mechanism is vertically arranged on the side part of the frame; the horizontal transmission mechanism is horizontally arranged below a horizontal processing plane of the rack, horizontally extends to the outer side of the rack and is arranged corresponding to the working stations up and down; the tray taking mechanism is vertically arranged between the horizontal transmission mechanism and the working station; the tray carrier is slidably arranged on a slide rail of the horizontal processing plane and freely slides between the tray storage station and the working station; the disk storage device is arranged on a disk storage station on the upper layer of the rack; at least two material trays which are stacked up and down are placed on the horizontal transmission mechanism, are horizontally transmitted inwards through the horizontal transmission mechanism, and are driven to integrally ascend through the lifting mechanism; after the tray taking mechanism sucks a single tray, the tray is driven to move to the position above the working station; the tray carrier moves linearly from the tray storage station to the working station, and the tray taking mechanism places the tray on the tray carrier; and the empty material tray formed after the materials in the material tray are taken out for processing is driven by the material tray carrier to return to the position of the material tray storage station, and the materials are stored by the material tray storage device.

Preferably, the lifting mechanism comprises a vertical support plate, a lifting driving motor, a lifting belt, a lifting slide seat and a connecting block; the vertical support plate is vertically arranged, a barrel groove is formed in the upper portion of the vertical support plate, and the horizontal conveying mechanism is horizontally arranged on the side portion of the barrel groove and extends outwards horizontally; a vertical groove is formed in the part, below the barrel groove, of the vertical support plate, rotating wheels are arranged in the vertical groove at intervals up and down, the rotating wheels are rotatably connected to the vertical support plate, and a lifting belt is sleeved between the two rotating wheels; the lifting driving motor is arranged at the lower part of the vertical support plate, the output end of the lifting driving motor is connected with the fulcrum shaft of the rotating wheel through a belt, and the lifting driving motor drives the rotating wheel to rotate so as to enable the lifting belt to move along the vertical direction; the lifting slide seat is connected to the vertical support plate in a sliding manner; the connecting block is buckled on the lifting belt and is fixedly connected with the lifting sliding seat so as to drive the lifting sliding seat to lift along with the lifting belt.

Preferably, the lifting mechanism further comprises a material tray support, a material tray support bar, a first limiting block and a second limiting block, wherein the material tray support is connected to the lifting slide seat; the charging tray supporting strip comprises at least two strips, and the charging tray supporting strip is horizontally connected to the charging tray support and horizontally extends to one side of the vertical support plate to form a support plane; the first limiting block and the second limiting block are respectively arranged at the inner end part and the outer end part of the top of the tray branch strip and are upwards protruded, and a limiting space is formed between the first limiting block and the second limiting block so as to limit and stack the trays on the supporting plane from the inner side and the outer side.

Preferably, the horizontal transmission mechanism comprises a transmission bracket, a transmission motor and a transmission belt; the conveying support is horizontally arranged in a barrel groove of the vertical support plate and horizontally extends outwards towards two sides of the barrel groove, a feeding station and a lifting station are arranged on the conveying support, and the lifting station is arranged up and down corresponding to the tray support strips; rotating rollers are arranged at two ends of the transmission bracket; the transmission belt is horizontally connected to the rotating roller of the transmission bracket, and the horizontal position of the transmission belt is higher than that of the transmission bracket; the transmission motor is arranged below the transmission support, the output end of the transmission motor is connected with the transmission roller, the transmission roller is driven to rotate to drive the transmission belt to move linearly, the material discs stacked on the feeding station are horizontally transferred to the lifting station through the transmission belt, and the material disc support bars penetrate through the transmission support from bottom to top to jack up the material discs from the lifting station and drive the material discs to move up and down.

Preferably, the horizontal transmission mechanism further comprises a blocking cylinder, a stop block and a limiting block; the blocking cylinder is vertically arranged below the transmission bracket, and the output end of the blocking cylinder is vertically arranged upwards; the stop block is connected to the output end of the blocking cylinder and is driven by the blocking cylinder to lift so as to extend upwards out of the transmission bracket to block the material tray from being transported; the limiting blocks are arranged at the end parts of the transmission supports, and the horizontal positions of the limiting blocks are higher than the horizontal position of the transmission belt, so that the material tray is prevented from sliding out of the transmission belt.

Preferably, the tray taking mechanism comprises a tray taking support, a tray taking cylinder, a tray taking lifting seat, a tray taking support plate, a tray taking insertion block and a tray taking suction nozzle, wherein the tray taking support comprises two tray taking supports which are arranged on two sides of the conveying support lifting station at intervals in parallel and vertically extend upwards; the tray taking cylinder is vertically arranged on the side part of the tray taking bracket, and the output end of the tray taking cylinder is arranged upwards; the tray taking lifting seat is connected to the side wall of the tray taking bracket in a sliding manner along the vertical direction and is connected with the output end of the tray taking cylinder; the tray taking support plate is arranged on the tray taking lifting seat, and a horizontal support part extending inwards is formed at the top of the tray taking support plate; the tray taking insertion blocks are vertically arranged on one side of the horizontal supporting part of the tray taking support plate, vertically extend downwards and are provided with inclined insertion surfaces below; the tray taking suction nozzles are arranged on one side of the horizontal supporting part of the tray taking supporting plate at intervals, and the suction nozzles are arranged downwards so as to suck trays from the tray supporting strips.

Preferably, the tray carrier comprises a carrier plate, a carrier plate fixing block, a carrier plate limiting strip, a shifting wheel and a limiting spring, wherein the carrier plate is of a horizontal plate structure, the middle part of the carrier plate is a tray bearing space, and the two corresponding sides of the tray bearing space are respectively provided with the carrier plate limiting strip extending along the side direction of the carrier plate; the carrier plate fixing blocks are correspondingly arranged on the outer sides of the carrier plate limiting strips and fixedly connected with the carrier plate; the limiting springs comprise at least two limiting springs, the limiting springs are connected between the support plate limiting strips and the support plate fixing blocks along the direction perpendicular to the support plate limiting strips, and the support plate limiting strips are pushed to the material tray bearing space by the elasticity of the limiting springs in a natural state so as to clamp the material tray placed in the material tray bearing space; the shifting wheels comprise at least two shifting wheels, the shifting wheels are connected to the support plate limiting strips through connecting blocks, and a gap space is reserved between the shifting wheels and the support plate limiting strips; the thumb wheel corresponds along vertical direction and gets a set inserted block setting, gets a set suction nozzle of a set mechanism and adsorbs the charging tray after, gets a set inserted block and inserts the clearance space between thumb wheel and the spacing strip of support plate in, gets the oblique inserted surface of a set inserted block below and promotes the thumb wheel to the outside, makes the spacing strip of support plate outwards compress spacing spring to put into charging tray to charging tray bearing space in.

Preferably, the disk storage device comprises a disk pushing mechanism and a disk receiving bearing mechanism; the tray pushing mechanisms are arranged on two corresponding sides of the tray storage station and extend in the vertical direction; the tray carrier drives the trays to move to the tray storage station, and the tray jacking mechanism penetrates through the tray carrier from bottom to top to jack up the trays placed on the tray carrier; the receiving tray bearing mechanisms are horizontally arranged on the inner side of the tray jacking mechanism and are positioned above the tray carriers, when the tray jacking mechanism jacks up the tray, the receiving tray bearing mechanisms are stirred to enable the receiving tray bearing mechanisms to rotate outwards, the receiving tray bearing mechanisms reset to form a horizontal bearing surface until the tray is pushed to the position above the receiving tray bearing mechanisms, and the tray jacking mechanism places the tray on the horizontal bearing surface.

Preferably, the tray jacking mechanism comprises a tray jacking bracket, slide rails, a tray inserting cylinder, a tray inserting lifting seat, a tray inserting rod, a tray jacking cylinder, a tray jacking support plate and a tray jacking column, wherein the slide rails comprise two slide rails, the two slide rails are arranged in parallel at intervals and span between the tray storage station and the working station, and the tray carrier is slidably embedded on the slide rails; the top tray bracket is vertically arranged on the side part of the slide rail at the tray storage station; the tray inserting cylinder is vertically arranged on the side part of the tray jacking bracket, and the tray inserting lifting seat with the output end upward is connected to the side wall of the tray jacking bracket in a sliding manner along the vertical direction and is connected with the output end of the tray inserting cylinder; the tray inserting rods comprise at least two tray inserting rods, the tray inserting rods are vertically connected to the tray inserting lifting seat, and the top of each tray inserting rod is provided with an inclined inserting surface; when the tray carrier moves to the tray storage station, the tray inserting cylinder drives the tray inserting rod to move upwards through the tray inserting lifting seat and insert the tray inserting rod into a gap space between the shifting wheel of the tray carrier and the support plate limiting strip, and the inclined inserting surface at the upper part of the tray inserting rod pushes the shifting wheel outwards to enable the support plate limiting strip to compress the limiting spring outwards so as to loosen the tray; the top tray cylinder is vertically arranged on the side part of the top tray bracket, the top tray support plate is connected to the side wall of the top tray bracket in a sliding manner along the vertical direction, and the top tray support plate extends horizontally; the top tray columns comprise at least two, are arranged on the top tray support plate at intervals and vertically extend upwards; the top plate cylinder drives the top plate column to penetrate through the material plate carrier from top to bottom through the top plate supporting plate, and the material plate on the opened material plate carrier is lifted upwards after bearing.

Preferably, the flange bearing mechanism comprises a spring seat, a flange support, a flange rotating shaft, a flange rotating block and a return spring; the tray support is of a U-shaped seat body structure, a U-shaped opening with an upward opening is formed in the tray support, and the tray support is arranged on the side wall of the top tray support and located above the sliding rail; the spring seat is of a U-shaped support structure, is horizontally provided with an opening facing the inner side and is connected to the outer side wall of the flange support; the flange rotating shaft is rotatably arranged at the bottom of the U-shaped opening of the flange support; the flange rotating block is arranged in a U-shaped opening of the flange support and is connected with the flange rotating shaft; the reset spring is horizontally arranged between the flange rotating block and the spring seat, and two ends of the reset spring are respectively connected to the side walls of the flange rotating block and the spring seat; under the natural state, the elasticity of the return spring pushes the receiving disc rotating block inwards to rotate inwards to form a horizontal supporting surface so as to support the receiving disc; when the top plate column drives the material tray to move upwards, the material tray stirs the connecting plate rotating block from bottom to top, so that the connecting plate rotating block rotates outwards to enable the material tray to move to the position above the connecting plate rotating block, the connecting plate rotating block rotates to the horizontal state again under the action of the internal elastic force of the reset spring, and the top plate column places the material tray on the connecting plate rotating block in the horizontal state.

A feeding process of a tray circulating feeding and storing device is characterized by comprising the following process steps:

s1, feeding: a plurality of material trays filled with materials are stacked up and down, placed at a feeding station of the horizontal transmission mechanism and linearly transmitted and moved to a lifting station through the horizontal transmission mechanism;

s2, integral material lifting disc: in the step S1, the plurality of stacked trays push the trays from bottom to top through the lifting mechanism at the lifting station and then push the plurality of stacked trays to ascend integrally;

s3, taking the tray: after the whole material tray rises in the step S2, the tray taking mechanisms which are arranged at two sides of the horizontal transmission mechanism and extend vertically upwards suck the uppermost material tray and then move upwards to the position above the working station of the horizontal processing surface at the top of the rack;

s4, receiving and placing the tray: step S3, after the material tray rises above the working station, the material tray carrier at the material tray storage station of the horizontal processing surface at the top of the frame moves linearly to the working station, the material tray is driven by the material tray taking mechanism to move downwards, the material tray is placed in the material tray carrier after the material tray carrier is opened in sequence, and the material tray carrier automatically compresses the material tray placed on the material tray carrier after the material tray carrier is drawn out by the material tray taking mechanism;

s5, taking materials and processing: after the tray carrier compresses and fixes the tray in the step S4, an external material taking mechanism takes out the materials contained in the compressed tray from the compressed tray and moves and processes the materials;

s6, storage transfer: in the step S5, after all the materials in the material tray are taken out, the material tray carrier drives the empty material tray to move linearly to the position of a material storage station;

s7, top plate: after the empty tray in the step 6 is transferred to the tray storage station through the tray carrier, the tray jacking mechanism arranged at the tray storage station is lifted from the lower part, the tray inserting rod of the tray jacking mechanism is inserted into the tray carrier, and after the tray carrier is opened, the tray jacking column of the tray jacking mechanism penetrates through the tray carrier from the lower part to jack up the tray upwards;

s8, saving: in the step S7, the top tray column bears the tray and drives the tray to move upward, the tray rotating block of the tray bearing mechanism is shifted outward by the tray bearing mechanism until the tray moves above the tray bearing mechanism, the tray rotating block returns to a horizontal state under the action of the return spring, the top tray column places the tray on the tray rotating block, and the tray is supported by the tray rotating block to be stored.

The utility model has the beneficial effects that:

aiming at the defects and shortcomings in the prior art, the utility model designs the material tray circular feeding and storing device which can be suitable for the material tray and single-rail jig feeding process in the automatic assembly process, realizes the automatic circular flow of the material tray along a rectangular path, effectively reduces the time consumed by replacing the material tray and improves the whole-line productivity.

The whole bearing plane of the utility model comprises an upper layer of bearing plane and a lower layer of bearing plane, wherein the two layers of bearing planes respectively extend horizontally, the bearing plane of the lower layer is sequentially provided with a feeding station and a lifting station from outside to inside, and the bearing plane of the upper layer is sequentially provided with a disc storage station and a material taking station from outside to inside; the multi-layer material discs stacked up and down are placed on a feeding station, the material discs are conveyed to a lifting station from the feeding station through a horizontal conveying mechanism, the lifting mechanism arranged at the lifting station penetrates through the horizontal conveying mechanism from the lower direction to jack the stacked material discs upwards to the position below a disc taking mechanism arranged on two sides above the lifting mechanism, the disc taking mechanism sucks the material discs from two sides of the lifting station from the uppermost layer and then drives the material discs to move to the position above the material taking station, a material disc carrier unloading empty material discs at the disc storing station horizontally moves to the position of the material taking station on an upper bearing plane, at the moment, a disc taking suction nozzle of the material discs and a disc taking insert block arranged downwards are synchronously driven by power to move downwards by the disc taking mechanism positioned above the material taking station, the disc taking insert block is firstly inserted into a gap space between a shifting wheel of the material disc carrier and a support plate limiting strip, and an inclined plane at the bottom of the disc taking insert block horizontally pushes the shifting wheel to drive the limiting strip to overcome the elasticity of the limiting spring so as to enable the limiting strip to move outwards The side pushing is carried out, after the tray carrier is opened, the tray taking suction nozzle places the tray on the tray carrier, and after the tray taking insert block is pulled out from a gap space between the shifting wheel and the support plate limiting strip, the support plate limiting strip automatically clamps the tray inwards under the action of the rebounding force of the limiting spring; and the assembling manipulator above the material taking station continuously takes out materials from the clamped material tray and assembles the materials to the base material clamped on the jig on the assembling station, and the material tray carrier drives the empty material tray to move to the material tray storage station after the material of the material tray is taken out. The utility model is originally designed with a tray pushing mechanism and a tray receiving bearing mechanism at the tray storage station, wherein the tray pushing mechanism extends upwards along two sides of the tray storage station, and the tray receiving bearing mechanism is arranged at the inner side of the tray pushing mechanism and is positioned above the tray storage station. After the tray carrier drives the empty tray to move to the tray storage station, the tray inserting rod of the tray ejecting mechanism upwards penetrates through a gap space between the shifting wheel of the tray carrier and the support plate limiting strip, the shifting wheel is transversely pushed through the inclined plane arranged at the top of the tray inserting rod to enable the support plate limiting strip to move linearly outwards, and after the empty tray is loosened, the tray ejecting column of the tray ejecting mechanism penetrates through the tray carrier from the lower part to abut against the tray and then drives the tray to upwards leave the tray carrier. Meanwhile, when the material tray moves upwards and passes through the receiving tray bearing mechanism above, the receiving tray rotating block of the receiving tray bearing mechanism is stirred outwards, the receiving tray rotating disc compresses the reset spring, after the material tray moves to the position above the receiving tray rotating block, the receiving tray rotating disc returns to the horizontal plane under the action of the rebounding force of the reset spring, and the top tray column moves downwards to place an empty material tray on the receiving tray rotating disc, so that the empty material tray is stored. The material tray forms a rectangular circulating flow path among the feeding station, the lifting station, the material taking station and the material storage station, and is efficiently linked with the material taking action, so that the feeding, transporting and material storage time of the material tray is effectively shortened, and the production capacity is improved.

Drawings

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

Fig. 2 is a schematic perspective view of the second embodiment of the present invention.

Fig. 3 is a third schematic perspective view of the present invention.

FIG. 4 is a fourth schematic view of the three-dimensional structure of the present invention.

Fig. 5 is a schematic perspective view of the transportation device of the present invention.

Fig. 6 is a schematic perspective view of a second transportation device according to the present invention.

Fig. 7 is a third perspective view of the transportation device of the present invention.

FIG. 8 is a fourth perspective view of the transportation device of the present invention.

Fig. 9 is a schematic perspective view of the horizontal transport mechanism of the present invention.

Fig. 10 is a second perspective view of the horizontal transportation mechanism of the present invention.

Fig. 11 is a third perspective view of the horizontal transportation mechanism of the present invention.

Fig. 12 is a schematic perspective view of the elevating and transporting mechanism of the present invention.

Fig. 13 is a second schematic perspective view of the lifting and transporting mechanism of the present invention.

Fig. 14 is a third schematic perspective view of the lifting and transporting mechanism of the present invention.

FIG. 15 is a fourth schematic perspective view of the elevating and transporting mechanism of the present invention.

Fig. 16 is a fifth perspective view of the elevating and transporting mechanism of the present invention.

Fig. 17 is a sixth schematic perspective view of the elevating and transporting mechanism of the present invention.

Fig. 18 is a seventh schematic perspective view of the elevating and transporting mechanism of the present invention.

Fig. 19 is an eighth schematic perspective view of the elevating and transporting mechanism of the present invention.

Fig. 20 is a perspective view of the disk taking device according to the present invention.

Fig. 21 is a second perspective view of the disk taking device according to the present invention.

Fig. 22 is a third perspective view of the disc taking device of the present invention.

Fig. 23 is a schematic perspective view of the disc picking mechanism according to the present invention.

Fig. 24 is a second perspective view of the disk-fetching mechanism of the present invention.

Fig. 25 is a third schematic perspective view of the disc picking mechanism of the present invention.

Fig. 26 is a schematic perspective view of a tray carrier according to the present invention.

Fig. 27 is a second schematic perspective view of the tray carrier of the present invention.

Fig. 28 is a schematic perspective view of a storage device according to the present invention.

Fig. 29 is a second schematic perspective view of the storage device of the present invention.

Fig. 30 is a third schematic perspective view of the storage device of the present invention.

Fig. 31 is a fourth schematic perspective view of the storage device of the present invention.

Fig. 32 is a schematic perspective view of the top plate mechanism of the present invention.

Fig. 33 is a second perspective view of the top plate mechanism of the present invention.

Fig. 34 is a third perspective view of the top plate mechanism of the present invention.

FIG. 35 is a fourth schematic perspective view of the tray lifting mechanism of the present invention.

Fig. 36 is a schematic perspective view of a tray carrying mechanism according to the present invention.

Fig. 37 is a schematic perspective view of a second embodiment of the tray carrying mechanism of the present invention.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 to 37, the technical solution adopted by the present invention is as follows: a material tray circular feeding and storing device comprises a frame 1, a lifting mechanism 2, a horizontal transmission mechanism 3, a material tray taking mechanism 4, a material tray carrier 5 and a storing device; the rack 1 is horizontally arranged, a horizontal processing plane is arranged at the top of the rack 1, and working stations and disk storage stations are arranged on the horizontal processing plane at intervals, wherein the working stations horizontally extend to the outer side of the rack 1 and are connected through sliding rails; the lifting mechanism 2 is vertically arranged on the side part of the frame 1; the horizontal transmission mechanism 3 is horizontally arranged below the horizontal processing plane of the rack 1, horizontally extends to the outer side of the rack 1 and is arranged corresponding to the working stations up and down; the tray taking mechanism 4 is vertically arranged between the horizontal transmission mechanism 3 and the working station; the tray carrier 5 can be arranged on a slide rail of a horizontal processing plane in a sliding way and can freely slide between a tray storage station and a working station; the disk storage device is arranged on a disk storage station on the upper layer of the rack 1; at least two material trays which are stacked up and down are placed on the horizontal transmission mechanism 3, are horizontally transmitted inwards through the horizontal transmission mechanism 3, and are driven to integrally ascend through the lifting mechanism 2; after the tray taking mechanism 4 sucks a single tray, the tray is driven to move to the position above the working station; the tray carrier 5 moves linearly from the tray storage station to the working station, and the tray taking mechanism 4 places the tray on the tray carrier 5; the empty material tray formed after the materials in the material tray are taken out for processing is driven by the material tray carrier 5 to return to the position of the material tray storing station, and the materials are stored by the material tray storing device.

The lifting mechanism 2 comprises a vertical support plate 21, a lifting driving motor 22, a lifting belt 23, a lifting slide 24 and a connecting block 25; the vertical support plate 21 is vertically arranged, a barrel groove is formed in the upper part of the vertical support plate 21, and the horizontal transmission mechanism 3 is horizontally arranged on the side part of the barrel groove and extends outwards horizontally; a vertical groove is formed in the part, below the barrel groove, of the vertical support plate 21, rotating wheels are arranged in the vertical groove at intervals up and down, the rotating wheels are rotatably connected to the vertical support plate 21, and a lifting belt 23 is sleeved between the two rotating wheels; the lifting driving motor 22 is arranged at the lower part of the vertical support plate 21, the output end of the lifting driving motor is connected with a fulcrum shaft of the rotating wheel through a belt, and the lifting driving motor 22 drives the rotating wheel to rotate so as to enable the lifting belt 23 to move along the vertical direction; the lifting slide 24 is connected on the vertical support plate 21 in a sliding way; the connecting block 25 is fastened on the lifting belt 23 and is fixedly connected with the lifting slide 24 so as to drive the lifting slide 24 to lift along with the lifting belt 23.

The lifting mechanism 2 further comprises a tray support 26, a tray support bar 27, a first limit block 28 and a second limit block 29, wherein the tray support 26 is connected to the lifting slide 24; the tray branch 27 comprises at least two, and the tray branch 27 is horizontally connected to the tray support 26 and horizontally extends to one side of the vertical support plate 21 to form a support plane; the first limiting block 28 and the second limiting block 29 are respectively disposed at the inner end and the outer end of the top of the tray support 27, and protrude upwards, and a limiting space is formed between the two, so as to limit the trays stacked on the supporting plane from the inner side and the outer side.

The horizontal transmission mechanism 3 comprises a transmission bracket 31, a transmission motor 32 and a transmission belt 33; the conveying support 31 is horizontally arranged in a barrel groove of the vertical support plate 21 and horizontally extends outwards towards two sides of the barrel groove, a feeding station and a lifting station are arranged on the conveying support 31, and the lifting station is arranged up and down corresponding to the tray support strips 27; rotating rollers are arranged at two ends of the transmission bracket 31; the above-mentioned transfer belt 33 is connected horizontally on the rotating roller of the transfer bracket 31, and the horizontal position of the transfer belt 33 is higher than the horizontal position of the transfer bracket 31; the transmission motor 32 is arranged below the transmission support 31, the output end of the transmission motor 32 is connected with the transmission roller, the transmission roller is driven to rotate to drive the transmission belt 33 to move linearly, the material discs stacked on the feeding station are horizontally transferred to the lifting station through the transmission belt 33, and the material disc support strip 27 penetrates through the transmission support 31 from bottom to top to jack up the material discs from the lifting station and drive the material discs to move up and down.

The horizontal transmission mechanism 3 further comprises a blocking cylinder 34, a stop block 35 and a limiting block 36; wherein, the blocking cylinder 34 is vertically arranged below the transmission bracket 31, and the output end is vertically arranged upwards; the stop block 35 is connected to the output end of the blocking cylinder 34 and driven to lift by the blocking cylinder 34 so as to extend upwards out of the transmission bracket 31 to block the tray transportation; the limiting block 36 is arranged at the end part of the transmission bracket 31, and the horizontal position of the limiting block 36 is higher than that of the transmission belt 33, so that the tray is prevented from sliding out of the transmission belt 33.

The tray taking mechanism 4 comprises a tray taking bracket 41, a tray taking cylinder 42, a tray taking lifting seat 43, a tray taking support plate 44, a tray taking insertion block 45 and a tray taking suction nozzle 46, wherein the tray taking bracket 41 comprises two blocks, and the tray taking bracket 41 is arranged on two sides of the lifting station of the transmission bracket 31 in parallel at intervals and vertically extends upwards; the disc taking cylinder 42 is vertically arranged at the side part of the disc taking bracket 41, and the output end of the disc taking cylinder faces upwards; the tray taking lifting seat 43 is connected to the side wall of the tray taking bracket 41 in a sliding manner along the vertical direction and is connected with the output end of the tray taking cylinder 42; the tray taking support plate 44 is arranged on the tray taking lifting seat 43, and a horizontal support part extending inwards is formed at the top of the tray taking support plate 44; the tray taking insertion blocks 45 comprise at least two, the tray taking insertion blocks 45 are vertically arranged on one side of the horizontal supporting part of the tray taking support plate 44, vertically extend downwards, and are provided with inclined insertion surfaces below; the disk taking suction nozzles 46 include at least two, and the disk taking suction nozzles 46 are arranged at intervals on one side of the horizontal supporting part of the disk taking supporting plate 44, and are arranged downwards so as to suck the disks a from the disk supporting bars 27.

The tray carrier 5 comprises a carrier plate 51, a carrier plate fixing block 52, a carrier plate limiting strip 53, a shifting wheel 54 and a limiting spring 55, wherein the carrier plate 51 is of a horizontal plate structure, the middle part of the carrier plate 51 is a tray bearing space, and the two corresponding sides of the tray bearing space are respectively provided with the carrier plate limiting strip 53 extending along the side direction of the carrier plate 51; the carrier plate fixing blocks 52 comprise at least two, and the carrier plate fixing blocks 52 are correspondingly arranged on the outer sides of the carrier plate limiting strips 53 and fixedly connected with the carrier plate 51; the limiting springs 55 comprise at least two limiting springs 55, the limiting springs 55 are connected between the support plate limiting strips 53 and the support plate fixing block 52 along the direction perpendicular to the support plate limiting strips 53, and the support plate limiting strips 53 are pushed to the tray bearing space by the elasticity of the limiting springs 55 in a natural state so as to clamp the tray a placed in the tray bearing space; the number of the thumb wheels 54 is at least two, the thumb wheels 54 are connected to the support plate limiting strips 53 through connecting blocks, and a gap space is reserved between the thumb wheels 54 and the support plate limiting strips 53; the dial wheel 53 is arranged along the vertical direction corresponding to the tray taking and inserting block 45, after the tray taking suction nozzle 46 of the tray taking mechanism 4 adsorbs a tray, the tray taking and inserting block 45 is inserted into a gap space between the dial wheel 54 and the support plate limiting strip 53, and the oblique insertion surface below the tray taking and inserting block 45 pushes the dial wheel 54 outwards, so that the support plate limiting strip 53 outwards compresses the limiting spring 55, and the tray a is placed into the tray bearing space.

The disk storage device comprises a disk pushing mechanism 7 and a disk receiving bearing mechanism 8; the tray pushing mechanisms 7 are arranged on two corresponding sides of the tray storage station and extend in the vertical direction; the tray carrier 5 drives the trays to move to the tray storage station, and the tray jacking mechanism 7 penetrates through the tray carrier 5 from bottom to top to jack up the trays placed on the tray carrier 5; the receiving disc bearing mechanisms 8 comprise at least two receiving disc bearing mechanisms 8, the receiving disc bearing mechanisms 8 are horizontally arranged on the inner side of the top disc mechanism 7 and are positioned above the material disc carrier 5, when the material disc is jacked up by the top disc mechanism 7, the receiving disc bearing mechanisms 8 are stirred to enable the receiving disc bearing mechanisms 8 to rotate outwards, the receiving disc bearing mechanisms 8 reset to form a horizontal bearing surface until the material disc is jacked to the position above the receiving disc bearing mechanisms 8, and the receiving disc is placed on the horizontal bearing surface by the top disc mechanism 7.

The tray jacking mechanism 7 comprises a tray jacking bracket 71, a slide rail 72, a tray inserting cylinder 73, a tray inserting lifting seat 74, a tray inserting rod 75, a tray jacking cylinder 76, a tray jacking support plate 77 and a tray jacking column 78, wherein the slide rail 72 comprises two slide rails 72, the two slide rails 72 are arranged in parallel at intervals and are spanned between a tray storage station and a working station, and the tray carrier 5 is slidably embedded on the slide rails 72; the top tray support 71 is vertically arranged on the side part of the slide rail 72 at the tray storage station; the tray inserting cylinder 73 is vertically arranged at the side part of the top tray support 71, and the output end of the tray inserting cylinder 73 is upwards provided with the tray inserting lifting seat 74 which can be connected to the side wall of the top tray support 71 in a sliding manner along the vertical direction and is connected with the output end of the tray inserting cylinder 73; the tray inserting rods 75 comprise at least two, the tray inserting rods 75 are vertically connected to the tray inserting lifting seat 74, and the top of each tray inserting rod 75 is provided with an inclined inserting surface; when the tray carrier 5 moves to the tray storage station, the tray inserting cylinder 73 drives the tray inserting rod 75 to move upwards through the tray inserting lifting seat 74 and insert into a gap space between the shifting wheel 54 of the tray carrier 5 and the support plate limiting strip 53, the inclined inserting surface at the upper part of the tray inserting rod 75 pushes the shifting wheel 54 outwards, so that the support plate limiting strip 53 outwards compresses the limiting spring 55 to loosen the tray a; the top tray cylinder 76 is vertically arranged at the side part of the top tray bracket 71, the top tray support plate 77 is slidably connected to the side wall of the top tray bracket along the vertical direction, and the top tray support plate 77 horizontally extends; the top tray columns 78 comprise at least two, and the top tray columns 78 are arranged on the top tray support plate 77 at intervals and vertically extend upwards; the top plate cylinder 76 drives the top plate column 78 to pass through the tray carrier 5 from top to bottom through the top plate support plate 77, and the tray on the opened tray carrier 5 is supported and then is jacked upwards.

The flange bearing mechanism 8 comprises a spring seat 81, a flange support 82, a flange rotating shaft 83, a flange rotating block 84 and a return spring 85; the flange support 82 is of a U-shaped seat structure, a U-shaped opening with an upward opening is formed in the flange support 82, and the flange support 82 is arranged on the side wall of the top flange support 71 and located above the sliding rail 72; the spring seat 81 is of a U-shaped bracket structure, the spring seat 81 is horizontally provided with an opening facing the inner side and is connected to the outer side wall of the flange support 82; the flange rotating shaft 83 is rotatably arranged at the bottom of the U-shaped opening of the flange support 82; the flange rotating block 84 is arranged in the U-shaped opening of the flange support 82 and is connected with the flange rotating shaft 83; the return spring 85 is horizontally arranged between the flange rotating block 84 and the spring seat 81, and two ends of the return spring 85 are respectively connected to the side walls of the flange rotating block 84 and the spring seat 81; under the natural state, the elasticity of the return spring 85 pushes the receiving tray rotating block 84 inwards to rotate, so that a horizontal supporting surface is formed to support the receiving tray; when the tray jacking column 78 drives the tray to move upwards, the tray dials the receiving rotary block 84 from bottom to top, so that the receiving rotary block 84 rotates outwards to enable the tray to move to the position above the receiving rotary block 84, the receiving rotary block 84 rotates to the horizontal state again under the action of the internal elasticity of the return spring 85, and the tray is placed on the receiving rotary block 84 in the horizontal state by the tray jacking column 78.

Furthermore, the utility model designs a material tray circular feeding and storing device which is suitable for a material tray and single-rail jig feeding process in an automatic assembling process, realizes that the material tray automatically and circularly flows along a rectangular path, effectively reduces the time consumed by replacing the material tray, and improves the whole-line productivity.

The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.

Claims

1. The utility model provides a material tray circulation material loading device of stocking which characterized in that: comprises a frame (1), a lifting mechanism (2), a horizontal transmission mechanism (3), a tray taking mechanism (4), a tray carrier (5) and a tray storage device; the automatic disc storage machine comprises a rack (1), a horizontal processing plane, a working station and a disc storage station, wherein the rack (1) is horizontally arranged, the top of the rack (1) is provided with the horizontal processing plane, the horizontal processing plane is provided with the working station and the disc storage station at intervals, the working station horizontally extends to the outer side of the rack (1), and the working station and the disc storage station are connected through a sliding rail; the lifting mechanism (2) is vertically arranged on the side part of the frame (1); the horizontal transmission mechanism (3) is horizontally arranged below a horizontal processing plane of the rack (1), horizontally extends to the outer side of the rack (1), and is vertically arranged corresponding to the working stations; the disc taking mechanism (4) is vertically arranged between the horizontal transmission mechanism (3) and the working station; the tray carrier (5) is slidably arranged on a slide rail of the horizontal processing plane and freely slides between the tray storage station and the working station; the disk storage device is arranged on a disk storage station on the upper layer of the rack (1); at least two material trays which are stacked up and down are placed on the horizontal transmission mechanism (3), are horizontally and inwards transmitted by the horizontal transmission mechanism (3), and are driven by the lifting mechanism (2) to integrally lift; the tray taking mechanism (4) drives the material tray to move above the working station after absorbing the single material tray; the tray carrier (5) moves linearly from the tray storage station to the working station, and the tray taking mechanism (4) places the tray on the tray carrier (5); the empty tray formed after the materials in the tray are taken out for processing is driven by the tray carrier (5) to return to the tray storage station, and the materials are stored by the tray storage device.

2. A tray circulating loading and storing apparatus according to claim 1, wherein: the lifting mechanism (2) comprises a vertical support plate (21), a lifting driving motor (22), a lifting belt (23), a lifting sliding seat (24) and a connecting block (25); the vertical support plate (21) is vertically arranged, a barrel groove is formed in the upper part of the vertical support plate (21), and the horizontal transmission mechanism (3) is horizontally arranged on the side part of the barrel groove and extends outwards horizontally; a vertical groove is formed in the part, below the barrel groove, of the vertical support plate (21), rotating wheels are arranged in the vertical groove at intervals up and down, the rotating wheels are rotatably connected to the vertical support plate (21), and a lifting belt (23) is sleeved between the two rotating wheels; the lifting driving motor (22) is arranged at the lower part of the vertical support plate (21), the output end of the lifting driving motor is connected with a fulcrum shaft of the rotating wheel through a belt, and the lifting driving motor (22) drives the rotating wheel to rotate so as to enable the lifting belt (23) to move along the vertical direction; the lifting slide seat (24) is connected to the vertical support plate (21) in a sliding manner; the connecting block (25) is buckled with the lifting belt (23) and is fixedly connected with the lifting slide seat (24) so as to drive the lifting slide seat (24) to lift along with the lifting belt (23).

3. A tray circulating loading and storing apparatus according to claim 1, wherein: the lifting mechanism (2) further comprises a material tray support (26), a material tray support bar (27), a first limiting block (28) and a second limiting block (29), wherein the material tray support (26) is connected to the lifting slide seat (24); the charging tray branch strips (27) comprise at least two, and the charging tray branch strips (27) are horizontally connected to the charging tray support (26) and horizontally extend to one side of the vertical support plate (21) to form a support plane; the first limiting block (28) and the second limiting block (29) are respectively arranged at the inner end part and the outer end part of the top of the tray branch bar (27) and are upwards protruded, and a limiting space is formed between the first limiting block and the second limiting block so as to limit the trays stacked on the supporting plane from the inner side and the outer side.

4. A tray circulating loading and storing apparatus according to claim 3, wherein: the horizontal transmission mechanism (3) comprises a transmission bracket (31), a transmission motor (32) and a transmission belt (33); the conveying support (31) is horizontally arranged in a barrel groove of the vertical support plate (21) and horizontally extends outwards towards two sides of the barrel groove, a feeding station and a lifting station are arranged on the conveying support (31), and the lifting station is arranged up and down corresponding to the tray support bars (27); rotating rollers are arranged at two ends of the transmission bracket (31); the transmission belt (33) is horizontally connected to the rotating roller of the transmission bracket (31), and the horizontal position of the transmission belt (33) is higher than that of the transmission bracket (31); the transmission motor (32) is arranged below the transmission support (31), the output end of the transmission motor (32) is connected with the transmission roller, the transmission belt (33) is driven to move linearly by driving the transmission roller to rotate, the material discs stacked on the feeding station are horizontally transferred to the lifting station through the transmission belt (33), and the material disc support strip (27) penetrates through the transmission support (31) from bottom to top to jack up the material disc from the lifting station and drive the material disc to move up and down.

5. The tray circulating and loading tray storing device according to claim 4, wherein: the horizontal transmission mechanism (3) also comprises a blocking cylinder (34), a stop block (35) and a limiting block (36); wherein, the blocking cylinder (34) is vertically arranged below the transmission bracket (31), and the output end is vertically arranged upwards; the stop block (35) is connected to the output end of the blocking cylinder (34) and is driven to lift by the blocking cylinder (34) so as to extend upwards out of the transmission bracket (31) to block the tray from being transported; the limiting blocks (36) are arranged at the end parts of the transmission supports (31), and the horizontal positions of the limiting blocks (36) are higher than the horizontal position of the transmission belt (33) to prevent the material tray from sliding out of the transmission belt (33).

6. The tray circulating and loading tray storing device according to claim 5, wherein: the tray taking mechanism (4) comprises a tray taking support (41), a tray taking cylinder (42), a tray taking lifting seat (43), a tray taking support plate (44), a tray taking insertion block (45) and a tray taking suction nozzle (46), wherein the tray taking support (41) comprises two blocks, and the tray taking support (41) is arranged on two sides of a lifting station of the transmission support (31) in parallel at intervals and vertically extends upwards; the disc taking cylinder (42) is vertically arranged on the side part of the disc taking bracket (41), and the output end of the disc taking cylinder is arranged upwards; the tray taking lifting seat (43) is connected to the side wall of the tray taking bracket (41) in a sliding manner along the vertical direction and is connected with the output end of the tray taking cylinder (42); the tray taking support plate (44) is arranged on the tray taking lifting seat (43), and a horizontal support part extending inwards is formed at the top of the tray taking support plate (44); the tray taking insertion blocks (45) comprise at least two, the tray taking insertion blocks (45) are vertically arranged on one side of the horizontal supporting part of the tray taking support plate (44), vertically extend downwards, and an inclined insertion surface is arranged below the tray taking insertion blocks; the disk taking suction nozzles (46) comprise at least two, the disk taking suction nozzles (46) are arranged on one side of the horizontal supporting part of the disk taking supporting plate (44) at intervals, and the suction nozzles are arranged downwards so as to suck the disks (a) from the disk supporting strips (27).

7. The tray circulating and loading tray storing device according to claim 6, wherein: the tray carrier (5) comprises a carrier plate (51), a carrier plate fixing block (52), a carrier plate limiting strip (53), a shifting wheel (54) and a limiting spring (55), wherein the carrier plate (51) is of a horizontal plate structure, the middle part of the carrier plate (51) is a tray bearing space, and the two corresponding sides of the tray bearing space are respectively provided with the carrier plate limiting strip (53) extending along the side direction of the carrier plate (51); the carrier plate fixing blocks (52) comprise at least two, and the carrier plate fixing blocks (52) are correspondingly arranged on the outer sides of the carrier plate limiting strips (53) and are fixedly connected with the carrier plate (51); the limiting springs (55) comprise at least two limiting springs (55), the limiting springs (55) are connected between the support plate limiting strips (53) and the support plate fixing block (52) along the direction perpendicular to the support plate limiting strips (53), and the support plate limiting strips (53) are pushed to the tray bearing space by the elasticity of the limiting springs (55) in a natural state so as to clamp the tray (a) placed in the tray bearing space; the number of the poking wheels (54) is at least two, the poking wheels (54) are connected to the support plate limiting strip (53) through connecting blocks, and a gap space is reserved between the poking wheels and the support plate limiting strip (53); the poking wheel (54) is arranged along the vertical direction corresponding to the tray taking insertion block (45), after the tray taking suction nozzle (46) of the tray taking mechanism (4) sucks the tray, the tray taking insertion block (45) is inserted into a gap space between the poking wheel (54) and the support plate limiting strip (53), the oblique insertion surface below the tray taking insertion block (45) pushes the poking wheel (54) outwards, so that the support plate limiting strip (53) outwards compresses the limiting spring (55) to place the tray (a) into the tray bearing space.

8. The tray circulating and loading tray storing device according to claim 7, wherein: the disk storage device comprises a disk pushing mechanism (7) and a disk receiving bearing mechanism (8); the tray pushing mechanisms (7) are arranged on two corresponding sides of the tray storage station and extend in the vertical direction; the tray carrier (5) drives the tray to move to the tray storage station, and the tray jacking mechanism (7) penetrates through the tray carrier (5) from bottom to top to jack up the tray placed on the tray carrier (5) upwards; the receiving disc bearing mechanisms (8) comprise at least two, the receiving disc bearing mechanisms (8) are horizontally arranged on the inner side of the tray jacking mechanism (7) and are positioned above the material disc carrier (5), when the tray jacking mechanism (7) jacks up the material disc, the receiving disc bearing mechanisms (8) are stirred to enable the receiving disc bearing mechanisms (8) to rotate outwards, the receiving disc bearing mechanisms (8) reset to form a horizontal bearing surface until the material disc is pushed to the position above the receiving disc bearing mechanisms (8), and the material disc is placed on the horizontal bearing surface by the tray jacking mechanism (7).

9. The tray circulating and loading tray storing device according to claim 8, wherein: the tray jacking mechanism (7) comprises a tray jacking bracket (71), slide rails (72), a tray inserting cylinder (73), a tray inserting lifting seat (74), a tray inserting rod (75), a tray jacking cylinder (76), a tray jacking support plate (77) and a tray jacking column (78), wherein the slide rails (72) comprise two slide rails (72), the two slide rails (72) are arranged in parallel at intervals and are arranged between a tray storage station and a working station in a spanning mode, and the tray carriers (5) are embedded on the slide rails (72) in a sliding mode; the top tray support (71) is vertically arranged on the side part of the sliding rail (72) at the tray storage station; the tray inserting cylinder (73) is vertically arranged on the side part of the tray top bracket (71), the tray inserting lifting seat (74) with the output end upward is connected to the side wall of the tray top bracket (71) in a sliding manner along the vertical direction and is connected with the output end of the tray inserting cylinder (73); the tray inserting rods (75) comprise at least two, the tray inserting rods (75) are vertically connected to the tray inserting lifting seat (74), and the top of each tray inserting rod (75) is provided with an inclined inserting surface; when the tray carrier (5) moves to the tray storage station, the tray inserting cylinder (73) drives the tray inserting rod (75) to move upwards through the tray inserting lifting seat (74) and insert into a gap space between the shifting wheel (54) of the tray carrier (5) and the support plate limiting strip (53), the inclined inserting surface at the upper part of the tray inserting rod (75) pushes the shifting wheel (54) outwards, so that the support plate limiting strip (53) outwards compresses the limiting spring (55) to loosen the tray (a); the top tray cylinder (76) is vertically arranged at the side part of the top tray bracket (71), the top tray support plate (77) is connected to the side wall of the top tray bracket in a sliding way along the vertical direction, and the top tray support plate (77) horizontally extends; the top tray columns (78) comprise at least two, and the top tray columns (78) are arranged on the top tray support plate (77) at intervals and vertically extend upwards; the top plate cylinder (76) drives the top plate column (78) to penetrate through the material plate carrier (5) from top to bottom through the top plate support plate (77), and the opened material plate on the material plate carrier (5) is lifted upwards after bearing.

10. A tray circulating loading and storing apparatus according to claim 9, wherein: the flange bearing mechanism (8) comprises a spring seat (81), a flange support (82), a flange rotating shaft (83), a flange rotating block (84) and a return spring (85); the flange support (82) is of a U-shaped seat body structure, a U-shaped opening with an upward opening is formed in the flange support, and the flange support (82) is arranged on the side wall of the top flange support (71) and located above the sliding rail (72); the spring seat (81) is of a U-shaped support structure, the spring seat (81) is horizontally provided with an opening facing the inner side and is connected to the outer side wall of the flange support (82); the flange rotating shaft (83) is rotatably arranged at the bottom of the U-shaped opening of the flange support (82); the flange rotating block (84) is arranged in a U-shaped opening of the flange support (82) and is connected with the flange rotating shaft (83); the return spring (85) is horizontally arranged between the flange rotating block (84) and the spring seat (81), and two ends of the return spring (85) are respectively connected to the side walls of the flange rotating block (84) and the spring seat (81); under the natural state, the elasticity of the return spring (85) pushes the receiving tray rotating block (84) inwards to rotate, and a horizontal supporting surface is formed so as to support the material tray; when the tray jacking column (78) drives the tray to move upwards, the tray stirs the tray rotating block (84) from bottom to top, so that the tray rotating block (84) rotates outwards to enable the tray to move to the position above the tray rotating block (84), the tray rotating block (84) rotates to the horizontal state again under the action of the internal elasticity of the return spring (85), and the tray is placed on the tray rotating block (84) in the horizontal state by the tray jacking column (78).