CN112249675A

CN112249675A - Tray conveying mechanism

Info

Publication number: CN112249675A
Application number: CN202011026870.8A
Authority: CN
Inventors: 缪磊; 肖夕全; 袁文卿
Original assignee: Suzhou RS Technology Co Ltd
Current assignee: Suzhou RS Technology Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-01-22

Abstract

The invention provides a material tray transmission mechanism which comprises a grabbing component, wherein a jacking feeding station, a material taking station and a jacking discharging station are arranged below the grabbing component along a straight line direction; the feeding assembly, the material taking platform and the blanking assembly are arranged below the grabbing assembly; the jacking feeding station, the material taking station and the jacking discharging station are arranged on the same horizontal plane, and a workbench for receiving a material tray is arranged at the top of the material taking platform to form the material taking station; the jacking feeding station and the jacking discharging station correspond to the feeding assembly and the discharging assembly; the jacking modules are arranged in the feeding assembly and the discharging assembly, the power output end of each jacking module vertically moves upwards to the jacking feeding station and the jacking discharging station, and the feeding assembly, the material taking platform and the discharging assembly are arranged on the same horizontal plane, so that the working logic of the grabbing assembly is simplified, and the grabbing precision is improved.

Description

Tray conveying mechanism

Technical Field

The invention belongs to the field of nonstandard automation, and particularly relates to a tray conveying mechanism.

Background

It is known to load workpieces with trays in the non-standard automation field, in particular in the inspection lines for small parts. However, the inventor finds that the existing material tray has at least the following problems in the using process:

firstly, in order to facilitate the circulation of the material tray, two assembly lines are usually adopted in the existing transmission mechanism to realize the feeding and discharging of the material tray, meanwhile, in the feeding and discharging process, a grabbing mechanism is needed to grab the material tray from one assembly line to the other assembly line, and the material holding space of the material tray is limited, so that the number of workpieces held on each material tray is limited, the workpieces are difficult to carry efficiently, and the efficiency is not high.

In view of the above, it is necessary to develop a tray conveying mechanism to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide a material tray conveying mechanism which conveys a stacked material tray stack and transfers the material tray among a jacking feeding station, a material taking station and a jacking discharging station by utilizing a grabbing assembly, thereby improving the production efficiency.

Another object of the present invention is to provide a tray conveying mechanism, in which the jacking feeding station, the material taking station and the jacking discharging station are disposed on the same horizontal plane, so as to facilitate grasping of the grasping assembly, simplify the working logic thereof, improve the working stability, and facilitate automation.

To achieve the above objects and other advantages in accordance with the present invention, there is provided a tray transfer mechanism including:

the feeding assembly is sequentially provided with a material preparing station and a jacking feeding station along the conveying direction of the feeding assembly, and periodically conveys a material tray stack formed by stacking a plurality of material trays;

the blanking assembly is sequentially provided with a jacking blanking station and a discharging station along the conveying direction of the blanking assembly, and the blanking assembly conveys a material tray stack formed by stacking empty material trays;

the material taking platform is provided with a material taking station; and

the grabbing assembly is provided with a jacking feeding station, a material taking station and a jacking discharging station;

jacking modules are arranged in the feeding assembly and the discharging assembly, and the jacking modules in the feeding assembly push the material tray set to lift the uppermost material tray to the jacking feeding station;

a jacking module in the blanking assembly drives the material tray set to descend to the uppermost layer and moves to the jacking blanking station;

the grabbing component moves the material tray at the jacking feeding station to the material taking station, and moves the empty material tray on the material taking station to the jacking discharging station.

Preferably, the jacking loading station, the material taking station and the jacking discharging station are arranged on the same horizontal plane, the grabbing component comprises a grabbing part and a linear driving part in transmission connection with the grabbing part, and the jacking loading station, the material taking station and the jacking discharging station are arranged along the moving direction of the grabbing part.

Preferably, the movable end of the jacking module in the blanking assembly is lifted to the position of the recovery station, and the grabbing assembly is used for bearing the material tray on the material taking platform and transferring the material tray to the movable end of the jacking module in the blanking assembly.

Preferably, the jacking module comprises a jacking table for receiving the material tray group and a driver for driving the jacking table;

the driver comprises a driving part which drives the jacking table to reciprocate along the vertical direction through screw rod transmission.

Preferably, the feeding assembly further comprises a guide module, and the guide module corresponds to the jacking feeding station;

the guide module is provided with a material guide opening penetrating through the upper surface and the lower surface of the guide module, and the jacking module pushes the material tray group to ascend so that the uppermost material tray is guided into the material tray of the material guide opening under the limiting and positioning of the inner wall of the material guide opening.

Preferably, an even number of guide assemblies arranged around the material guiding opening are arranged on the inner wall of the material guiding opening, the guide assemblies are arranged to be composed of at least one guide subset, and each guide subset comprises a pair of oppositely arranged guide pieces;

the guide member comprises an extension guide plate, and the extension guide plate extends downwards from the inner wall of the material guide opening to limit a guide space positioned in the guide member;

when the charging tray is guided into the guide space, the charging tray is clamped by the oppositely arranged extending guide plates.

Preferably, the lifting blanking device also comprises a positioning assembly which is positioned right above the lifting blanking station,

the positioning assembly comprises a detection part, the detection part corresponds to the jacking module on the blanking assembly so as to detect that the grabbing assembly is moved to the blanking assembly by the material taking platform, and the material tray position on the jacking module is arranged in the blanking assembly.

Preferably, the jacking module is arranged at the downstream end of the feeding assembly, and the other jacking module is arranged at the upstream end of the discharging assembly;

the feeding assembly and the discharging assembly are parallel and opposite in transmission direction.

Preferably, the material taking platform comprises a bearing seat, and the grabbing material tray on the material tray set jacked by the jacking module is transferred to the top of the bearing seat through the grabbing assembly.

Preferably, the bottom of the tray is provided with the groove, and the top of the bearing seat is provided with a positioning module corresponding to the groove so as to limit the position of the tray on the horizontal plane;

the bearing seat is also provided with a plurality of limiting modules, and the limiting modules are connected with the bottom of the material tray so as to limit the position of the material tray in the vertical direction.

Compared with the prior art, the invention has the beneficial effects that:

according to the material tray transmission mechanism provided by the invention, the material tray stack formed by stacking is transmitted, and the grabbing component moves the material tray among the jacking feeding station, the material taking station and the jacking discharging station, so that the production efficiency is improved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a left side view of the present invention in a preferred embodiment;

FIG. 3 is a schematic view of a portion of the structure of the present invention in a preferred embodiment;

FIG. 4 is a first perspective view of a loading assembly in accordance with a preferred embodiment of the present invention;

FIG. 5 is a second perspective view of the loading assembly in a preferred embodiment of the present invention;

FIG. 6 is an exploded view of the loading assembly in a preferred embodiment of the present invention;

FIG. 7 is an enlarged partial schematic view of FIG. 6;

fig. 8 is a schematic perspective view of a reclaiming platform according to a preferred embodiment of the invention.

Shown in the figure:

21. a material tray;

22. a feeding assembly;

221. a guide module;

2211. a guide substrate; 2212. a material guide port;

2213. an extension guide plate; 22131. a guide section; 22132. a let position port;

2214. connecting columns;

222. a jacking module;

2221. a jacking table; 22211. a top plate; 22212. a limiting block;

2222. a baffle plate; 2223. a transmission section; 2224. a drive section; 2225. a fixed seat;

223. a feeding line body; 2231. a transmission section;

224. an in-place module;

23. a material taking platform;

231. a bearing seat;

232. a positioning module;

233. a limiting module;

24. a grasping assembly;

241. a drive plate;

242. a grasping section;

243. a linear driving section;

25. a blanking assembly;

26. and a positioning component.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a full and partial embodiment of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

According to the technical scheme of the invention, as shown in fig. 1 and 2, the material tray conveying mechanism comprises a conveying mechanism, a material taking platform 23 and a grabbing assembly 24, wherein a material taking station is arranged on the material taking platform 23;

the conveying mechanism comprises a feeding assembly 22 and a discharging assembly 25, the feeding assembly 22 comprises a feeding line body 223, a material preparation station and a jacking feeding station are sequentially arranged on the feeding line body along the conveying direction of the feeding line body 223, and a material tray stack formed by stacking a plurality of material trays 21 is periodically conveyed on the feeding line body 223;

the blanking assembly 25 is sequentially provided with a jacking blanking station and a discharging station along the conveying direction, and the blanking assembly 25 conveys a material tray stack formed by stacking the empty material trays 21;

the grabbing component 24 is provided with a jacking feeding station, a material taking station and a jacking blanking station; the grabbing assembly 24 comprises a driving plate 241, a grabbing part 242 and a linear driving part 243, wherein the linear driving part 243 is in transmission connection with the driving plate 241, the grabbing part 242 is installed on the driving plate 241, and the driving plate 241 moves along a horizontal linear direction; further, the jacking feeding station, the material taking station and the jacking discharging station are sequentially arranged along the moving direction of the linear driving part 243;

the jacking module 222 corresponds to the jacking feeding station and the jacking discharging station respectively, and the jacking module 222 comprises a jacking table 2221 positioned at the jacking feeding station and the jacking discharging station and a driver in transmission connection with the jacking table 2221, and specifically, the jacking feeding station and the jacking discharging station are positioned above the square of the jacking table 2221; the structure of the feeding assembly 22 and the blanking assembly 25 is substantially the same, except that a guide module 221 is further included on the feeding assembly 22 for guiding the position of the material tray group.

The jacking module 222 in the feeding assembly 22 pushes the tray set to lift the tray 21 on the uppermost layer to the jacking feeding station; the jacking module 222 in the blanking assembly 25 drives the material tray set to descend to the uppermost material tray 21 and move to the jacking blanking station;

the grabbing component 24 moves the material tray 21 at the jacking feeding station to the material taking station, and moves the empty material tray 21 on the material taking station to the jacking discharging station.

The guide module 221 is fixedly arranged right above the jacking table 2221, that is, it can be understood that the jacking feeding station corresponds to the guide module 221;

furthermore, the guiding module 221 is provided with a material guiding opening 2212 penetrating through the upper and lower surfaces thereof, and the lifting table 2221 is driven by the driver to push the material tray set to ascend so that the material tray 21 at the uppermost layer is guided into the material tray 21 through the material guiding opening 2212 under the limit and positioning of the inner wall of the material guiding opening 2212.

The material tray group is guided through the material guide port 2212, so that the material tray 21 on the uppermost layer is located at a fixed position when being guided into the material guide port 2212, the material tray 21 can be accurately grabbed by an external grabbing device, the material taking station position of the material taking platform 23 can be accurately placed, the position accuracy of a workpiece in the material tray 21 is guaranteed, the accuracy of subsequent processing is improved, and the detection accuracy is specifically achieved.

The material taking platform 23 comprises a bearing seat 231 located at a material taking station, the material taking station is arranged at the top of the bearing seat 231, the upper surface of the bearing seat 231 is a platform, so that the material tray 21 can be conveniently placed on the platform, and the material tray 21 is grabbed and placed at the material taking station from the position of the jacking material feeding station through the grabbing component 24;

it should be noted that the material taking station and the jacking material loading station are located on the same horizontal plane, the material tray group is pushed by the jacking module 222 to make the height of the uppermost material tray 21 consistent with the height of the receiving surface of the receiving seat 231, so that the material tray 21 of the jacking material loading station is picked by the picking assembly 24 and placed on the material taking station, and the material taking station and the jacking material loading station are located on the same horizontal plane, so that the height of the picking assembly 24 in the two working steps of picking and placing is consistent, so that the picking assembly 24 is simplified, at least a reduced mechanism in the picking assembly 24 comprises a position detector, further the working logic of the picking assembly 24 is simplified, so that the control logic is simplified, the work is more stable, the automation level is improved, the working efficiency is improved, and meanwhile, because the picking assembly 24 needs to move between a transmission mechanism and the material taking platform 23, the moving stroke of the picking assembly 24 is larger, through simplifying its structure for this snatchs mechanism uses more stably.

An even number of guide assemblies arranged around the material guiding opening 2212 are arranged on the inner wall of the material guiding opening 2212, and the guide assemblies are arranged to be composed of at least one guide subset, wherein each guide subset comprises a pair of oppositely arranged guide pieces; in a preferred embodiment, the material guiding opening 2212 is rectangular, and two sets of guiding members are disposed on the inner walls of the four sides of the material guiding opening 2212.

Further, the guide includes an extension guide plate 2213, and the extension guide plate 2213 extends downward from the inner wall of the material guide opening 2212 to define a guide space in the guide; one group of guide parts limits the material tray 21 to be in one direction along the horizontal plane, and the other group of guide parts limits the material tray 21 to be in another different direction along the horizontal plane, at the moment, the material tray 21 limits at least two directions in the horizontal plane direction, so that the position on the material tray 21 is in a fixed position;

meanwhile, since the extension guide plate 2213 has a plate-shaped structure, when the tray 21 is introduced into the guide space, the tray 21 is pressed against the extension guide plate 2213, so that the extension guide plate 2213 is deformed, and the tray 21 is clamped by the extension guide plate 2213 disposed opposite to the extension guide plate 2213.

As mentioned, the charging tray stack is formed by the stack of multiple charging trays 21, when charging tray 21 piles up together, there is frictional force between two adjacent charging trays 21, and it is charging tray 21 to snatch the superiors to snatch the mechanism, if there is not clamping force to the charging tray 21 of below, it picks up a plurality of charging trays 21 easily to snatch the mechanism, thereby influence subsequent processing, in order to avoid above-mentioned problem to appear, through extending deflector 2213 centre gripping charging tray group, it only can snatch a charging tray 21 of superiors when snatching to be convenient for snatch the mechanism, thereby make things convenient for subsequent processing.

The bottom of the extension guide plate 2213 is bent outward to form a guide portion 22131 which encloses an opening, the opening is larger than the material tray 21, the material tray 21 with the offset guide position is convenient to be guided, and the offset material tray 21 is adjusted to the corresponding guide space through the guide portion 22131, so that the material tray 21 can conveniently pass through the material guide port 2212.

Specifically, the direction module 221 includes the direction base plate 2211, and the direction base plate 2211 is as the base of direction module, and the guide opening 2212 is seted up on the direction base plate 2211, extends deflector 2213 demountable installation on the direction base plate 2211, thereby the inner wall downwardly extending of the partly guide opening 2212 of extension deflector 2213, through setting up detachable extension deflector 2213, conveniently change the needs that extend deflector 2213 in order to satisfy different charging trays 21.

The feeding assembly line further comprises a plurality of in-place modules 224, wherein the in-place modules 224 are arranged on the conveying mechanism and the material taking platform 23, and part of the in-place modules 224 are arranged on the guide modules 221; the in-place module 224 detects whether the tray set or the tray 21 is in place, so as to control the jacking module or the grabbing mechanism to work, thereby realizing automation; in the preferred embodiment, the in-place module 224 includes an infrared sensor, and it should be noted that the in-place module 224 may include not only an infrared sensor, but also a hall sensor, a photoelectric sensor, or other monitoring sensors.

Furthermore, the extending guide plate 2213 is provided with a yielding opening 22132, the reaching module 224 corresponds to the position of the yielding opening 22132, and the detection end of the reaching module 224 penetrates through the yielding opening 22132 and extends into the material guiding opening 2212.

In a preferred embodiment, the feeding line body 223 includes two opposite conveying portions 2231, the tray set is disposed on the movable conveying ends of the two conveying portions 2231, the tray set is driven by the movable conveying ends, the tray set is placed at the material preparing station at the upstream end of the conveying portion 2231, and the tray set moves to the downstream jacking and feeding station along with the movable conveying ends.

The driving module is tightly attached to the downstream end of the transmission part 2231, so that the lifting module 222 blocks the tray set moved by the feeding line body 223, the lifting table 2221 extends into the space between the two transmission parts 2231, and after the lifting module 222 blocks the tray set, the lifting table 2221 lifts the blocked tray set to separate from the feeding line body 223;

specifically, a baffle 2222 is formed by extending the jacking table 2221 in a vertical upward direction at a side close to the driving module, and when the jacking table 2221 is located at a position lower than the transmission part 2231, the baffle 2222 protrudes out of the top of the jacking table 2221 and extends out of the feeding line body 223 to block the material disc group.

In order to meet the requirement that after the tray 21 on the uppermost layer of the tray set is grabbed, the jacking module 222 can jack the remaining tray set to the position where the tray below the tray 21 on the uppermost layer is originally lifted to the jacking feeding station, so that the jacking module 222 needs to meet the requirement of the gap motion, in a preferred embodiment, the driver includes a driving portion 2224, the driving portion 2224 drives the jacking table 2221 to reciprocate along the vertical direction through screw transmission, and the fixed end distance of the jacking table 2221 is conveniently controlled to be lifted in a gap manner.

The jacking module 222 further includes a fixed seat 2225, the driving part 2224 is mounted on the fixed seat 2225, meanwhile, a guide slide rail is mounted on the fixed seat 2225, a slider is mounted on the jacking table 2221, the slider is slidably connected with the guide slide rail to limit the moving direction of the jacking table 2221, meanwhile, the lead screw is in threaded connection with a nut seat, the nut seat is mounted on the jacking table 2221, and the nut seat simultaneously slides with the fixed seat 2225, so that the jacking table 2221 and the fixed seat 2225 form a reliable sliding connection structure; further, the guide module 221 is mounted on the top of the fixing seat 2225, so that the relative position between the guide module 221 and the lifting table 2221 is fixed, and only the distance in the vertical direction changes, and in order to make the installation of the guide module 221 more stable, a connecting column 2214 is provided on one side surface of the guide module 221 adjacent to the connection between the fixing seat 2225, the connecting column 2214 extends downwards to the outer side wall of the driving part 2224, and is fixedly connected with the driving part 2224 through the connecting column 2214, so that the guide module 221 is fixed above the feeding assembly 22.

The bottom of the tray 21 is provided with a groove, and the top of the jacking table 2221 is provided with a limit block 22212 corresponding to the groove;

when the limiting block 22212 extends into the groove, the outer edge of the limiting block 22212 abuts against the inner wall of the groove, so that the tray 21 is limited at the fixed position of the jacking table 2221;

meanwhile, the top of the bearing seat 231 is provided with a positioning module 232 corresponding to the groove to limit the position of the tray 21 on the horizontal plane; the receiving base 231 is further provided with a plurality of limiting modules 233, and the limiting modules 233 are connected with the bottom of the tray 21, so that the position of the tray 21 in the vertical direction is limited.

The conveying mechanism further comprises a positioning assembly 26 which is located right above the jacking blanking station, specifically, the positioning assembly 26 comprises a detection part 261, the detection part 261 corresponds to the jacking module 222 on the blanking assembly 25, so as to detect the position of the material tray 21, which is transferred to the jacking module 222 in the blanking assembly 25 from the material taking platform 23, of the grabbing assembly 24.

In a preferred embodiment, the detecting part 261 includes a visual detector, and the position of the tray set located on the jacking and blanking station is detected by the visual detector, so as to ensure that the grabbing assembly 24 grabs the top of the tray set, on which the trays 21 on the material taking platform 23 are accurately stacked, on the jacking and blanking station.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A tray conveying mechanism, comprising:

the feeding assembly (22) is sequentially provided with a material preparing station and a jacking feeding station along the conveying direction, and the feeding assembly (22) periodically conveys a material tray stack formed by stacking a plurality of material trays (21);

the blanking assembly (25) is sequentially provided with a jacking blanking station and a discharging station along the conveying direction, and the blanking assembly (25) conveys a material tray stack formed by stacking empty material trays (21);

the material taking platform (23) is provided with a material taking station; and

the grabbing component (24) is arranged above the jacking feeding station, the material taking station and the jacking discharging station;

jacking modules (222) are arranged in the feeding assembly (22) and the discharging assembly (25), and the jacking modules (222) in the feeding assembly (22) push the material tray group to lift the uppermost material tray (21) to the jacking feeding station;

a jacking module (222) in the blanking assembly (25) drives the material tray set to descend to the uppermost material tray (21) and move to the jacking blanking station;

the grabbing component (24) moves the material tray (21) at the jacking feeding station to the material taking station, and moves the empty material tray (21) on the material taking station to the jacking discharging station.

2. The tray conveying mechanism according to claim 1, wherein the jacking loading station, the material taking station and the jacking unloading station are arranged on the same horizontal plane, the grabbing assembly (24) comprises a grabbing part and a linear driving part (243) in transmission connection with the grabbing part, and the jacking loading station, the material taking station and the jacking unloading station are arranged along the moving direction of the grabbing part.

3. The tray conveying mechanism according to claim 2, wherein the movable end of the lifting module (222) in the blanking module (25) is lifted to the recovery station, and the gripping module (24) transfers the tray (21) placed on the material taking platform (23) to the movable end of the lifting module (222) in the blanking module (25).

4. The tray transport mechanism according to claim 3, wherein the jacking module (222) comprises a jacking table (2221) for receiving the tray group and a driver for driving the jacking table (2221);

the driver comprises a driving part (2224), and the driving part (2224) drives the jacking table (2221) to reciprocate along the vertical direction through screw rod transmission.

5. The tray conveying mechanism according to any one of claims 1 to 4, wherein the loading assembly (22) further comprises a guide module (221), and the guide module (221) corresponds to the jacking loading station;

the guide module (221) is provided with a material guide opening (2212) penetrating through the upper surface and the lower surface of the guide module, and the jacking module (222) pushes the material tray group to ascend so that the uppermost material tray (21) is guided into the material tray (21) of the material guide opening (2212) under the limiting and positioning of the inner wall of the material guide opening (2212).

6. Tray transport mechanism according to claim 5, characterized in that the inner wall of the material guiding opening (2212) is provided with an even number of guiding assemblies arranged around the material guiding opening (2212), the guiding assemblies being arranged to be made up of at least one guiding subset, each guiding subset comprising a pair of oppositely arranged guiding members;

the guide member includes an extension guide plate 2213, and the extension guide plate 2213 extends downward from the inner wall of the material guide opening 2212 to define a guide space located in the guide member;

when the tray (21) is introduced into the guide space, the tray (21) is held by the extending guide plates (2213) which are arranged oppositely.

7. Tray transfer mechanism according to any of claims 1-4, further comprising a positioning assembly (26) located directly above the jacking blanking station,

locating component (26) includes detection portion (261), detection portion (261) correspond on unloading subassembly (25) jacking module (222), in order to detect snatch subassembly (24) by it transfers to get material platform (23) and move to in unloading subassembly (25) on jacking module (222) charging tray (21) position.

8. Tray transport mechanism according to any of claims 1-4, characterized in that the jacking module (222) is arranged at the downstream end of the loading assembly (22) and the other jacking module (222) is arranged at the upstream end of the unloading assembly (25);

the feeding assembly (22) and the blanking assembly (25) are parallel and opposite in conveying direction.

9. The tray conveying mechanism according to any one of claims 1 to 4, wherein the material taking platform (23) comprises a receiving seat (231), and the gripping trays (21) on the tray group lifted by the lifting module (222) are transferred on the top of the receiving seat (231) by the gripping assembly (24).

10. The tray conveying mechanism according to claim 9, wherein the bottom of the tray (21) is provided with the groove, and the top of the receiving seat (231) is provided with a positioning module (232) corresponding to the groove to limit the position of the tray (21) on the horizontal plane;

the bearing seat (231) is also provided with a plurality of limiting modules (233), and the limiting modules (233) are connected with the bottom of the material tray (21) so as to limit the position of the material tray (21) in the vertical direction.