CN214455108U - Charging tray feeding and recycling device - Google Patents

Abstract

The utility model discloses a charging tray material loading recovery unit, include: the device comprises a rack, a feeding station, a recovery station and a transfer station, wherein the feeding station, the recovery station and the transfer station are sequentially arranged along a straight line direction; the feeding assembly, the recovery assembly and the jacking positioning assembly are arranged on the rack; the power output end of the horizontal driving component is in transmission connection with the jacking positioning component; the jacking positioning assembly is driven by the horizontal driving assembly to periodically perform reciprocating translation among the feeding station, the recovery station and the transfer station. The utility model provides a charging tray material loading recovery unit has the material loading subassembly of charging tray to and fix jacking locating component and realize charging tray automatic feeding on horizontal drive subassembly, make the work efficiency of material loading improve.

Description

Charging tray feeding and recycling device

Technical Field

The utility model relates to a material automatic transportation field, in particular to charging tray material loading recovery unit.

Background

The charging tray is used for containing a vessel for processing parts, is used for bearing workpiece products to be processed, qualified and unqualified, and is very important in the processing and detection process, and the workpieces are positioned on a plurality of stations in the detection process, so that the charging tray needs to be conveyed, and the charging and discharging of the charging tray are required.

In the field of automatic material transportation, charging and discharging of a material tray are realized by using material tray charging and recovering devices with different structural forms. At the in-process of the material loading or unloading of research and realization charging tray, utility model people discover that the charging tray material loading recovery unit among the prior art has following problem at least:

firstly, the traditional method is manual operation, and an operator places a single material tray on a feeding machine, so that the labor intensity of the operator is increased, and the efficiency is low.

In view of the above, there is a need to develop a tray feeding and recycling device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model discloses a main objective provides a charging tray material loading recovery unit, and it has the material loading subassembly of charging tray through setting up to and realize charging tray automatic feeding on the fixed horizontal drive subassembly of jacking locating component, make the work efficiency of material loading improve.

The utility model discloses a material tray material loading recovery unit is provided, it is through with material loading subassembly, recovery subassembly and jacking locating component closely parallel arrangement in proper order for the space between each station diminishes, and the holistic structure of material tray material loading recovery unit is compacter, reduces area.

In order to realize the basis of the utility model discloses an above-mentioned purpose and other advantages provide a charging tray material loading recovery unit, include:

the device comprises a rack, a feeding station, a recovery station and a transfer station, wherein the feeding station, the recovery station and the transfer station are sequentially arranged along a straight line direction;

the feeding assembly, the recovery assembly and the jacking positioning assembly are arranged on the rack; and

the power output end of the horizontal driving component is in transmission connection with the jacking positioning component;

the jacking positioning assembly is driven by the horizontal driving assembly to periodically perform reciprocating translation among the feeding station, the recovery station and the transfer station.

Preferably, a shuttle channel is formed on the frame and located below the loading assembly and the recovery assembly, and the jacking positioning assembly is driven by the horizontal driving assembly to make reciprocating translation in the shuttle channel.

Preferably, this charging tray has seted up the jacking constant head tank in its bottom, jacking locating component includes:

a jacking driver;

the object stage is in transmission connection with the power output end of the jacking driver and matched into the jacking positioning groove;

carry a set locating component, it locates on the objective table, carry a set locating component and include:

a positioning driver; and

and the even number of jacking pieces are radially arranged on the circumferential direction of the object stage and are in transmission connection with the power output end of the positioning driver.

Preferably, the supporting member is arranged to be constituted by at least one positioning subset, each positioning subset includes a pair of supporting members oppositely arranged, and the corresponding pair of supporting members in each positioning subset are driven by the positioning driver to approach or move away from each other.

Preferably, the jacking positioning groove is a polygon surrounded by at least four side edges, one positioning subset is provided, and the movement direction of two jacking pieces in the positioning subset coincides with one diagonal line of the jacking positioning groove.

Preferably, jacking locating component still includes two limiting plates that set up relatively each other, two limiting plate interval sets up in order to form the jacking location passageway that is located between the two, objective table and year dish locating component arrange in the jacking location passageway.

Preferably, the limit plates are formed with an upper limit skirt joining the limit plates inside a respective one of the limit plates and extending at least approximately in a horizontal direction towards the inside of the jacking positioning channel; and

the limit plates are formed with a lower limit skirt located directly below the upper limit skirt, the lower limit skirt joining the limit plates at an inner side of a corresponding one of the limit plates and extending at least approximately in a horizontal direction toward an interior of the jacking positioning tunnel; the carrying disc is positioned between the corresponding pair of upper limiting skirt parts and the lower limiting skirt parts.

Preferably, a projection of the upper and/or lower retainer skirts in a horizontal plane at least partially overlaps a projection of the boat in a horizontal plane.

Preferably, the feeding assembly comprises:

the lifting drivers are fixedly arranged at a feeding station on the rack;

the clamping drivers are in transmission connection with the power output end of the corresponding lifting driver;

the two lifting drivers are opposite and arranged at intervals to limit a blanking channel between the lifting drivers, the power output end of each clamping driver is in transmission connection with a material supporting plate, and the two material supporting plates are driven by the respective clamping drivers to be close to or far away from each other.

Preferably, the cross-sectional area of one end of the retainer plate far away from the clamping driver is gradually reduced along the direction that the clamping driver approaches the material tray.

Preferably, the recovery assembly comprises:

retrieve the subassembly including fixed mounting in at least two sets of non-return buckles of retrieving station department in the frame, every group the non-return buckle includes:

the fixed seat is fixedly arranged on the rack;

the check piece is rotationally connected with the fixed seat, so that the check piece can rotate relative to the fixed seat to switch between an unlocking state and a locking state; and

the resetting component is arranged in the fixed seat and elastically acts on the check piece, so that the check piece rotates along a locking direction to reset from the unlocking state to the locking state;

wherein the check includes:

the rotating section is rotatably connected with the fixed seat; and

a holding section fixed to an upper outer side of the rotating section and having a guide slope formed on an outer side thereof, the guide slope inclining outward from a bottom thereof, the restoring member acting between the upper inner side of the rotating section and the fixing base.

One of the above technical solutions has the following advantages or beneficial effects: there is the material loading subassembly of charging tray through the setting to and fix jacking locating component and realize charging tray automatic feeding on horizontal drive subassembly, make the work efficiency of material loading improve.

Another technical scheme in the above technical scheme has the following advantages or beneficial effects: through with material loading subassembly, recovery subassembly and jacking locating component closely parallel arrangement in proper order for the space between each station diminishes, and the holistic structure of charging tray material loading recovery unit is compacter, reduces area.

Drawings

Fig. 1 is a schematic perspective view of a tray feeding and recycling device according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a partial tray feeding and recycling device according to an embodiment of the present invention;

fig. 3 is a schematic view of a separating device of the jacking positioning assembly according to an embodiment of the present invention;

fig. 4 is a bottom view of the tray and the stage according to an embodiment of the present invention;

fig. 5 is a side view of a jacking positioning assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a feeding driver according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a check ring according to an embodiment of the present invention;

fig. 8 is a top view of a check ring according to an embodiment of the present invention;

FIG. 9 is a top view of a back stop along A-A according to one embodiment of the present invention;

fig. 10 is a top view of a back stop buckle along B-B in accordance with an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection 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.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

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.

According to an embodiment of the utility model combines the demonstration of fig. 1, fig. 2, can see that charging tray material loading recovery unit includes:

a frame 38, on which a feeding station 35, a recovery station 36 and a transfer station 37 are arranged in sequence along a straight direction; the feeding assembly 31 and the recovery assembly 33 are symmetrically provided with baffles 312, projections of the baffles 312 on a horizontal plane are preferably at right angles, specifically, the right angles of the trays can limit two directions of the trays, and the baffles 312 are arranged on the rack 38. At least two baffles 312 are arranged, and the two baffles 312 are arranged in a central symmetry manner, that is, the two baffles 312 are arranged on the same diagonal line of the tray.

Further, a feeding assembly 31, a recovery assembly 33 and a jacking positioning assembly 32 are arranged on the frame 38; the power output end of the horizontal driving component 34 is in transmission connection with the jacking positioning component 32; the feeding assembly 31 and the recovery assembly 33 are respectively located at the feeding station and the recovery station, and the jacking positioning assembly 32 is driven by the horizontal driving assembly 34 to periodically move in a reciprocating manner along the direction a and/or the direction B among the feeding station 35, the recovery station 36 and the transfer station 37.

Further, a shuttle channel is formed on the frame 38 and located below the loading assembly 31 and the recovery assembly 33, and the jacking positioning assembly 32 is driven by the horizontal driving assembly 34 to perform reciprocating translation in the shuttle channel so as to realize reciprocating translation of the jacking positioning assembly 32 among the loading station, the recovery station and the transfer station.

Referring now to fig. 3 and 4, which clearly show in detail that the tray has a jacking positioning slot at the bottom thereof, the jacking positioning assembly 32 includes: the jacking driver 323, the jacking driver 323 is the clamping jaw air cylinder particularly preferably; the object stage 325 is in transmission connection with the power output end of the jacking driver 323 and is matched into the jacking positioning groove; a carrier tray positioning assembly 324 disposed on the stage 325, the carrier tray positioning assembly 324 comprising: a positioning driver 3241; and an even number of supporting members 3242 radially arranged in the circumferential direction of the stage 325, and drivingly connected to a power output end of the positioning driver 3241.

Wherein the lifters 3242 move away from or close to each other to extend or retract from the edge of the stage 325 by the positioning driver 3241; when the jacking piece 3242 extends out from the edge of the object stage 325, the outer end of the jacking piece is abutted against the inner side of the jacking positioning groove so as to jack and position the carrier disc 321 in the radial direction; when the top holder is retracted from the edge of the stage 325, the outer end thereof is separated from the inner side of the lift positioning groove to unlock the positioning of the carrier plate 321 in the radial direction. Referring to fig. 5 in conjunction with fig. 4, the object table 325 and the top support 3242 are completely located in the top positioning groove.

Further, the object stage 325 is further provided with a positioning slide rail, it should be understood that the supporting member 3242 is disposed in the positioning slide rail to limit the moving direction of the supporting member 3242, and it is particularly preferable that the object stage 325 is recessed downward to form the positioning slide rail, such an embodiment saves space, and can further increase the internal space of the jacking assembly.

Further, referring again to fig. 3 and 4, the supporting member 3242 is arranged to be composed of at least one positioning subset, each positioning subset includes a pair of supporting members 3242 oppositely disposed, and the corresponding pair of supporting members 3242 in each positioning subset is driven by the positioning driver 3241 to move toward or away from each other. It should be appreciated that the outer end of the top support 3242 is shaped and sized to conform to the shape and size of the carrier plate 321 where it contacts.

Furthermore, the jacking positioning groove is a polygon formed by surrounding at least four side edges, one positioning subset is arranged, and the movement direction of two jacking pieces 3242 in the positioning subset coincides with one diagonal line of the jacking positioning groove.

Specifically, when the carrier plate 321 is placed on the object stage 325, the positioning driver 3241 on the carrier plate positioning assembly 324 is activated, so that the pair of supporting members 3242 are away from each other to extend out of the object stage 325, and the outer ends of the supporting members 3242 abut against the inner side of the lifting positioning groove to radially support and position the carrier plate 321, and preferably, the supporting members 3242 support the right angle of the carrier plate 321; when the carrier plate 321 is removed, when the pair of lifters 3242 are retracted from the edge of the stage 325 in a relatively close manner, the outer ends thereof are separated from the inner sides of the lift positioning grooves to unlock the positioning of the carrier plate 321 in the radial direction.

Referring to fig. 2 and 3 again, the jacking positioning assembly 32 further includes two limiting plates 322 disposed opposite to each other, the two limiting plates 322 are disposed at intervals to form a jacking positioning channel therebetween, and the stage 325 and the carrier plate positioning assembly 324 are disposed in the jacking positioning channel.

The limit plates 322 are formed with upper limit skirts 3221, the upper limit skirts 3221 join the limit plates 322 at the inner side of the corresponding limit plate 322 and extend at least approximately in the horizontal direction toward the interior of the jacking positioning channel; and

the limit plates 322 are formed with a lower limit skirt 3222 located directly below the upper limit skirt 3221, the lower limit skirt 3222 joins the limit plate 322 inside a corresponding one of the limit plates 322 and extends at least approximately in a horizontal direction toward the inside of the jacking positioning passage; when the boat is seated on the stage 325, the boat is positioned between a respective pair of the upper and lower retaining skirt portions 3221, 3222.

The projection of the upper and/or lower retaining skirt 3221, 3222 onto a horizontal plane at least partially overlaps the projection of the boat onto a horizontal plane.

Further, referring to fig. 2 and 5 again, the limiting plate 322 ensures that the flatness of the carrier disc 321 during the movement process is ensured; the upper limiting skirt portion 3221 ensures the horizontal plane of the carrying disc in the subsequent material taking process, so that material can be accurately positioned and taken, and the lower limiting skirt portion 3222 can carry the carrying disc 321, so that when the ejector 3242 is replaced, the carrying disc 321 is separated from the carrying table 325, and the ejector 3242 can be replaced quickly.

Meanwhile, in case that the jacking driver 323 fails to start, so that the object stage 325 is infinitely lowered or raised, the upper and lower limiting skirts 3221 and 3222 limit the moving range of the object stage 325 in the longitudinal direction, thereby ensuring the working efficiency and avoiding the loss caused by improper operation.

Further, when the carrying disc 321 is placed on the jacking positioning assembly 32, the jacking positioning assembly 32 moves below the manipulator, and the jacking driver 323 is started, so that the carrying table 325 moves upwards until the carrying disc 321 contacts with the upper limit skirt 3221 of the limit plate 322, and the jacking driver 323 stops moving and is just located at the height convenient for the manipulator to operate.

Specifically, referring to fig. 5 again, at least two jacking drivers 323 are provided, and are respectively located at two ends of the object stage 325, so that the heights of the two ends of the object stage 325 are kept at the same horizontal plane, and further the heights of the two ends of the carrying tray 321 are kept consistent, and meanwhile, the two ends of the object stage 325 are symmetrically provided with the limiting plates 322, so that the two ends of the carrying tray 321 are further kept at the same horizontal plane, thereby forming a dual guarantee.

Referring to fig. 6 in conjunction with fig. 2 again, the feeding assembly 31 includes: at least two lifting drivers 313 fixedly mounted at a loading station on the frame 38; at least two clamping driver frames 311, wherein each clamping driver 311 is in transmission connection with the power output end of a corresponding lifting driver 313;

the two lifting drivers 313 are arranged oppositely and at intervals to limit a blanking channel between the lifting drivers 313, a power output end of each clamping driver 311 is in transmission connection with a material supporting plate 3112, and the two material supporting plates 3112 are driven by the respective clamping drivers 311 to approach or separate.

Further, the clamping driver 311 further includes a fixing portion 3111, and the fixing portion 3111 is formed at an angle of preferably 90 degrees with respect to the retainer plate 3112 and is self-integrated. The cross-sectional area of the material holding plate 3112 at the end far from the holding driver 311 is gradually decreased along the direction of the upper holding driver 311 approaching the material tray.

Further, the cross-sectional area of the material holding plate 3112 at the end far from the holding driver 311 is gradually decreased along the direction that the holding driver 311 approaches the tray.

In a specific embodiment, when the jacking positioning assembly 32 moves to a position right below the loading assembly 31, the jacking driver 323 is started to move the object stage 325 upwards until the tray positioning member 324 fixes the tray 321 on the object stage 325; further, the clamping driver 311 is activated to move horizontally away from the tray until the retainer plate 3112 is lifted from the tray 321, and then the lifting driver 313 raises the height of one tray upwards to insert the retainer plate 3112 into the gap between the tray and the next tray, so as to support the rest of the trays stored on the loading assembly 31. At this time, the stage 325 moves downward when the lifting driver 323 is started again, and at the same time, the lifting driver 313 descends by the height of one tray downward, so that the next feeding action is facilitated.

Further, the cross-sectional area of the end of the retainer plate 3112 is gradually decreased along the direction of the clamping driver 311 approaching the tray, so that the retainer plate 3112 can be inserted into the gap between the tray and the next tray

Referring again to fig. 2, the recycling assembly 33 shown in fig. 7 includes at least two sets of check fasteners 331 fixedly mounted at a recycling station on the frame 38, each set of check fasteners 331 including:

a fixing base 3312 fixedly mounted on the frame 38;

a check 3311 rotatably connected to the holder 3312 such that the check 3311 is rotatable relative to the holder 3312 to switch between an unlocked state and a locked state; and

referring to fig. 9 in conjunction with fig. 8, a reset member 3314 provided in the holder 3312 and elastically acting on the check 3311 such that the check 3311 rotates in a locking direction to reset from the unlocked state to the locked state;

wherein the check 3311 includes: a rotation section 33111 rotatably connected to the fixing base 3312; and a seating section 33112 fixed to an upper outer side of the rotation section 33111 and formed at an outer side of the seating section 33112 with a guide slope inclined outward from a bottom thereof, the restoring member 3314 acting between the upper inner side of the rotation section and the fixing base 3312.

Referring to fig. 10 in conjunction with fig. 9, the fixing member 3312 and the check member 3311 are provided with a horizontal through hole at the same level, and a rotation shaft 3313 is provided in the horizontal through hole; to prevent the rotation shaft 3313 from being separated from the transverse through hole, the check 3311 is provided with a longitudinal through hole perpendicular to the transverse through hole, and although not shown in the drawings, it should be understood that a fixing bolt 3315, preferably a bolt, is detachably coupled to the rotation shaft 3313.

Further, the inclination angle between the outer side of the rotating section 33111 of each set of the check button 331 and the horizontal plane is α, the included angle between the inner side of the check part 3311 and the fixing part 3312 is β, and the tray 321 presses the check part 3311 to be close to the fixing part 3312 in the recycling process.

After the tray 321 on the jacking positioning component 33 is completed on the transfer station 37, the jacking positioning component 33 is driven by the horizontal driving component 34 to move downwards to a position right below the recovery component 32, the jacking driver 323 is started to lift the tray 321, and the tray 321 passes through the check buckle 331 in the lifting process, because the outer side of the upper part of the rotating section 33111 and the outer side of the bearing section 33112 form a guide inclined plane, the inclination angle between the outer side of the rotating section 33111 and the horizontal plane is alpha, and the included angle between the inner side of the check part 3311 and the fixing part 3312 is beta, the check part 3311 can gradually approach the fixing part 3312 to be in an unlocking state under the extrusion of the tray 321 in the lifting process of the tray 321; when the rising height of the material tray 321 exceeds the check button 331, the check member 3311 returns to the original locking state under the action of the reset member 3314, the material tray 321 is supported on the horizontal plane formed by the check button 331 and the fixing section 3312, the next material tray 321 to be recovered repeats the above actions, the last material tray 321 to be recovered is stacked above the next material tray 321 to be recovered, the material tray 321 is finally recovered, and the actions are repeatedly circulated to realize the recovery of the material tray.

In summary, the material transportation process is as follows: jacking locating component 32 moves under horizontal drive component 34 the material loading subassembly 31 under, jacking driver 323 drive objective table 325 rises, treats that charging tray 321 places stable back, jacking locating component 32 takes charging tray 321 removes to shift on the station 37, treats that the material on the charging tray 321 is processed the back, jacking locating component 32 moves under retrieving subassembly 33, jacking driver 323 drives objective table 325 once more and rises, retrieves the charging tray, and material automatic transportation is realized to the repeated cycle action.

Although not shown in the drawings, it should be understood that the jacking positioning assembly should further include a controller, where the tray has or does not have a sensor, the tray positioning sensor, the height position sensor, and the controller is electrically connected to the controller, and the controller is configured to receive feedback signals of the sensors, and send different control instructions to the driver according to different feedback signals, so that the jacking driver 323 drives the object stage 325 to ascend and descend, and the tray positioning element 324 limits the positioning of the tray, and finally, the ordered operation and matching of the components are achieved.

The specific driving method may be any one of the existing driving methods such as rotational lifting/horizontal driving, rack and pinion lifting/horizontal driving, hydraulic lifting/horizontal driving, cylinder lifting/horizontal driving or rail lifting/horizontal driving, or a combination of two or more of the above driving methods, so as to realize that the object stage 325 ascends or descends within the range of the jacking positioning channel or that the jacking positioning assembly 32 periodically reciprocates and translates among the loading station, the recovery station and the transfer station under the driving of the horizontal driving assembly 34.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a charging tray material loading recovery unit which characterized in that includes:

the device comprises a rack (38), a feeding station (35), a recovery station (36) and a transfer station (37) which are sequentially arranged along a linear direction;

the feeding assembly (31), the recovery assembly (33) and the jacking positioning assembly (32) are arranged on the rack (38); and

the power output end of the horizontal driving component (34) is in transmission connection with the jacking positioning component (32);

the feeding assembly (31) and the recovery assembly (33) are respectively located at the feeding station and the recovery station, and the jacking positioning assembly (32) is driven by the horizontal driving assembly (34) to periodically reciprocate among the feeding station (35), the recovery station (36) and the transfer station (37).

2. The tray loading and recycling device according to claim 1, wherein the frame (38) is formed with a shuttle channel located below the loading assembly (31) and the recycling assembly (33), and the jacking positioning assembly (32) is driven by the horizontal driving assembly (34) to make reciprocating translation in the shuttle channel.

3. The tray feeding and recycling device according to claim 1, wherein the tray is provided with a jacking positioning groove at the bottom thereof, and the jacking positioning assembly (32) comprises:

a jacking driver (323);

the object stage (325) is in transmission connection with a power output end of the jacking driver (323) and is matched into the jacking positioning groove;

a carrier tray positioning assembly (324) disposed on the stage (325), the carrier tray positioning assembly (324) comprising:

a positioning driver (3241); and

an even number of supporting pieces (3242) which are radially arranged on the circumference of the object stage (325) are in transmission connection with the power output end of the positioning driver (3241).

4. The tray loading recovery device according to claim 3, characterized in that the ejector (3242) is arranged to be made up of at least one positioning subset, each positioning subset comprising a pair of oppositely disposed ejectors (3242), a respective pair of ejectors (3242) in each positioning subset being driven by the positioning driver (3241) to approach or move away from each other.

5. The tray loading and recovery device according to claim 4, wherein the jacking positioning groove is a polygon surrounded by at least four sides, one of the positioning subsets is provided, and the moving direction of two jacking members (3242) in the positioning subsets coincides with one diagonal line of the jacking positioning groove.

6. The tray feeding and recycling device according to claim 3, wherein the jacking positioning assembly (32) further comprises two limiting plates (322) opposite to each other, the two limiting plates (322) are spaced apart to form a jacking positioning channel therebetween, and the carrier table (325) and the tray positioning assembly (324) are arranged in the jacking positioning channel.

7. Tray loading recovery device according to claim 6, characterised in that said limit plates (322) are formed with an upper limit skirt (3221), said upper limit skirt (3221) incorporating the limit plate (322) inside a respective one of said limit plates (322) and extending at least approximately in a horizontal direction towards the inside of said lifting positioning channel; and

the limit plate (322) is formed with a lower limit skirt (3222) located directly below the upper limit skirt (3221), the lower limit skirt (3222) joining the limit plate (322) inside a respective one of the limit plates (322) and extending at least approximately in a horizontal direction towards the inside of the jacking positioning channel; the carrying discs are positioned between a corresponding pair of the upper limiting skirt portions (3221) and the lower limiting skirt portions (3222).

8. Tray loading recovery device according to claim 7, characterized in that the projection of the upper (3221) and/or lower (3222) limiting skirt on the horizontal plane at least partially overlaps the projection of the boat on the horizontal plane.

9. Tray loading recovery device according to claim 1, characterized in that the loading assembly (31) comprises:

at least two lifting drivers (313) fixedly arranged at a feeding station on the frame (38);

at least two clamping drivers (311), wherein each clamping driver (311) is in transmission connection with the power output end of the corresponding lifting driver (313);

the two lifting drivers (313) are opposite and arranged at intervals to limit a blanking channel between the lifting drivers (313), a power output end of each clamping driver (311) is in transmission connection with a material supporting plate (3112), and the two material supporting plates (3112) are close to or far away from each other under the driving of the respective clamping drivers (311).

10. Tray loading recovery device according to claim 1, characterized in that said recovery assembly (33) comprises at least two sets of check-fasteners (331) fixedly mounted at a recovery station on said frame (38), each set of said check-fasteners (331) comprising:

a fixing seat (3312) fixedly mounted on the frame (38);

a check member (3311) rotatably connected to the holder (3312) such that the check member (3311) is rotatable relative to the holder (3312) to switch between an unlocked state and a locked state; and

a reset member (3314) provided in the fixing base (3312) and elastically acting on the check (3311) such that the check (3311) rotates in a locking direction to reset from the unlocked state to the locked state;

wherein the check (3311) comprises:

a rotating section (33111) rotatably connected to the fixing base (3312); and

a bearing section (33112) fixed to an upper outer side of the rotation section and an outer side of the bearing section (33112) is formed with a guide slope inclined outward from a bottom thereof, the restoring member (3314) acts between the upper inner side of the rotation section and the fixing base (3312).

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