CN214359016U - Tray stacking machine - Google Patents

Abstract

The utility model discloses a tray stacking machine, which comprises a lifting frame mechanism, a driving mechanism, a swing arm bearing mechanism and a sealing plate protection structure arranged outside the lifting frame mechanism and the driving mechanism, wherein the lifting frame mechanism and the driving mechanism are all fixedly arranged on the sealing plate protection structure, the driving mechanism is arranged above the lifting frame mechanism and is used for driving the lifting frame mechanism to move along the vertical direction, the swing arm bearing mechanism is fixedly arranged on the lifting frame mechanism, the swing arm bearing mechanism at least comprises two shifting fork assemblies fixedly arranged on the lifting frame mechanism, each shifting fork assembly comprises a driving part and a bearing swing arm, and the driving part is used for driving the bearing swing arm to swing along the horizontal direction; the lifting frame mechanism comprises a first lifting frame component and a second lifting frame component which are symmetrically arranged. The utility model provides a tray stacking machine which is stable in operation and high in reliability.

Description

Tray stacking machine

Technical Field

The utility model relates to a fold a set machine technical field, specifically be a tray folds a set machine.

Background

With the rapid development of various industries, the logistics conveying equipment needs to be increased day by day, in order to meet the requirements of different industries on the logistics conveying equipment, trays need to be used in logistics transmission, in order to improve the space utilization rate, a large number of trays need to be stacked layer by layer, the traditional tray stacking machine is composed of three large components, namely a main body frame, a lifting device and a telescopic fork, and the telescopic fork drives the trays to move up and down under the action of a lifting traction device, so that the splitting and stacking operation of a single tray is realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tray stacking machine, the reliable and bearing capacity of structure is strong, can be reliable carry out the lift operation to the tray.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tray stacking machine, is in including lifting frame mechanism, actuating mechanism, swing arm bearing mechanism and setting lifting frame mechanism with the shrouding protective structure in the actuating mechanism outside, lifting frame mechanism with the equal fixed mounting of actuating mechanism is in on the shrouding protective structure, actuating mechanism sets up lifting frame mechanism's top is used for the drive lifting frame mechanism moves along vertical direction, swing arm bearing mechanism fixed mounting is in on the lifting frame mechanism, swing arm bearing mechanism includes two fixed mounting at least and is in shift fork assembly on the lifting frame mechanism, shift fork assembly includes driver part and bearing swing arm, driver part is used for the drive the bearing swing arm swings along the horizontal direction.

Preferably, the lifting frame mechanism comprises a first lifting frame component and a second lifting frame component which are symmetrically arranged, the first lifting frame component and the second lifting frame component have the same structure, and are synchronously driven by the driving mechanism; the first lifting frame assembly comprises a first lifting frame and a first sliding rail structure, and the first sliding rail structure is used for enabling the first lifting frame to slide along the vertical direction.

Preferably, first slide rail structure is including setting up the slip recess of first lift frame both sides and with slip recess assorted slip track, shrouding protective structure includes a plurality of shroudings, slip track fixed mounting is in on the shrouding.

Preferably, shrouding protective structure's bottom is equipped with first detection switch for whether the tray reachs the relevant position, first detection switch's top is equipped with the second detection switch, second detection switch fixed mounting be in shrouding protective mechanism is inboard, be used for detecting whether the tray stack reachs the relevant height, actuating mechanism includes the controller, first detection switch with the second detection switch all with the controller electricity is connected.

Preferably, actuating mechanism still includes the top mounting bracket with shrouding protective structure fixed connection, fixed mounting has driving motor, final drive shaft and transmission shaft on the top installing support, the final drive shaft passes through the bearing and rotates and install on the first erection support that two symmetries set up, the transmission shaft passes through the bearing and rotates and install on the second erection support that two symmetries set up, be equipped with driving sprocket and first drive sprocket on the final drive shaft, be equipped with second drive sprocket on the transmission shaft, driving motor's output shaft is equipped with motor sprocket, motor sprocket with driving sprocket passes through chain drive and connects, first drive sprocket with second drive sprocket passes through chain drive and connects.

Preferably, the main driving shaft is further provided with a first lifting chain wheel and a second lifting chain wheel, the transmission shaft is further provided with a third lifting chain wheel and a fourth lifting chain wheel, and the driving mechanism further comprises a first matching chain wheel, a second matching chain wheel, a third matching chain wheel and a fourth matching chain wheel which are arranged at the bottom of the sealing plate protection structure; the first matching chain wheel and the second matching chain wheel are respectively in transmission connection with the first lifting chain wheel and the second lifting chain wheel through chains; and the third matching chain wheel and the fourth matching chain wheel are respectively in transmission connection with the third lifting chain wheel and the fourth lifting chain wheel through chains.

Preferably, the first lifting frame comprises a plurality of cross beams, the swing arm bearing mechanism comprises a first fork member, a second fork member and a third fork member which are fixedly arranged on the cross beams, the first fork-moving component comprises a driving structure and a first swing arm structure, the driving structure is used for driving the first swing arm structure to swing, the second fork member and the third fork member have the same structure and are symmetrically arranged at two sides of the first fork member, the second fork member includes a second swing arm structure, the third fork member includes a third swing arm structure, the first swing arm structure is respectively connected with the second swing arm structure and the third swing arm structure through a first connecting rod and a second connecting rod, the two ends of the first connecting rod are respectively connected with the first swing arm structure and the second swing arm structure in a rotating mode, and the two ends of the second connecting rod are respectively connected with the first swing arm structure and the third swing arm structure in a rotating mode.

Preferably, more than two chain connecting plates are fixedly mounted on one of the crossbeams, and mounting holes are formed in the chain mounting plates and used for fixing chains; the first shifting fork component, the second shifting fork component and the third shifting fork component are all used for being connected with the mounting plate fixedly, and a plurality of fixing holes are formed in the connecting bottom plate.

Preferably, the driving structure comprises a driving cylinder fixedly mounted on the mounting plate, the first swing arm structure comprises a first tooth fork and a first fixing seat, the first tooth fork is rotatably connected with the first fixing seat, and the driving cylinder is used for driving the first tooth fork to swing around the first fixing seat; the second swing arm structure comprises a second tooth fork and a second fixed seat, the second tooth fork is rotatably connected with the second fixed seat, the third swing arm structure comprises a third tooth fork and a third fixed seat, and the third tooth fork is rotatably connected with the third fixed seat; the first shifting fork is connected with the second shifting fork and the third shifting fork through a first connecting rod and a second connecting rod respectively.

Preferably, the first tooth fork comprises a second connecting part and a third connecting part which are symmetrically arranged about the first fixed seat, the lower end of the second connecting part is provided with a first connecting part, the free end of the driving cylinder is rotatably connected with the second connecting part, the distance between the center of the second connecting part and the center of the first fixed seat is defined as a driving arm L1, the first shifting fork further comprises a first shifting plate, the length of the first shifting plate is L2, and L1 is more than or equal to L2/3; the second fork comprises a fourth connecting part, and the fourth connecting part is connected with the third connecting part through the first connecting rod; the third dental fork comprises a fifth connecting part, and the fifth connecting part is connected with the second connecting part through the second connecting rod; first tooth fork still include with first fixing base rotates the first cover that rotates of connecting, the bottom of first group board is equipped with a strengthening rib, the one end of strengthening rib with first cover is connected to rotate, and the other end is followed the first length direction who dials the board extends.

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

the utility model is provided with a lifting frame mechanism, a driving mechanism, a swing arm bearing mechanism and a sealing plate protection structure arranged outside the lifting frame mechanism and the driving mechanism, wherein the driving mechanism is arranged above the lifting frame mechanism and can drive the lifting frame mechanism to move along the vertical direction; swing arm bearing mechanism fixed mounting is on the lifting frame mechanism, and swing arm bearing mechanism includes two fork assembly of fixed mounting on the lifting frame mechanism at least, and fork assembly includes driver part and bearing swing arm, and driver part is used for driving the bearing swing arm and swings along the horizontal direction, drives the bearing swing arm through torsional forces and swings, and structural reliability increases.

The utility model discloses set up first detection switch and second detection switch, be used for detecting whether the tray reachs corresponding position and whether the detection tray stack reachs corresponding height respectively to convey detection signal to actuating mechanism's controller, realized the whole automated inspection who piles up the process of tray.

The utility model discloses a swing arm formula bearing mechanism includes the first shift fork component of fixed mounting on the mounting panel, second shift fork component and third shift fork component, first shift fork component includes drive structure and first swing arm structure, drive structure is used for driving first swing arm structure and swings, second shift fork component and the same and symmetry setting of third component structure are in the both sides of first shift fork component, second shift fork component includes second swing arm structure, third shift fork component includes third swing arm structure, first swing arm structure is connected with second swing arm structure and third swing arm structure through the connecting rod respectively, thereby drive second swing arm structure and the synchronous swing of third swing arm structure, the synchro control of three shift fork component has been realized.

Drawings

Fig. 1 is a schematic structural view of a tray stacking machine of the present invention;

fig. 2 is a schematic front view of the tray stacking machine of the present invention;

fig. 3 is a schematic structural view illustrating the connection between the first lifting frame assembly and the driving mechanism in the tray stacking machine of the present invention;

fig. 4 is a schematic top view of a driving mechanism of a tray stacking machine according to the present invention;

fig. 5 is a schematic structural view of a first lifting frame in the tray stacking machine of the present invention;

fig. 6 is a schematic structural view of a first slide rail structure in the tray stacking machine of the present invention;

fig. 7 is a schematic top view of a swing arm bearing mechanism in the tray stacking machine of the present invention;

fig. 8 is a schematic front view of a swing arm bearing mechanism in a tray stacking machine of the present invention;

fig. 9 is an enlarged schematic structural view of a portion a of fig. 8 in a tray stacking machine according to the present invention;

fig. 10 is a schematic structural view of a first fork member in the tray stacking machine according to the present invention;

fig. 11 is a schematic structural view of a second fork member in the tray stacking machine of the present invention;

fig. 12 is a schematic cross-sectional view of a first fork member of a tray stacking machine according to the present invention;

fig. 13 is a schematic view of the structure of the swing arm bearing mechanism in the tray stacking machine according to the present invention.

In the figure: 1. a cross beam; 2. a first fork member; 201. a first yoke; 2011. a first connection portion; 2012. a second connecting portion; 2013. a third connecting portion; 2014. a first dial plate; 202. a first fixed seat; 203. a first rotating sleeve; 204. reinforcing ribs; 3. a second fork member; 301. a second yoke; 3011. a fourth connecting portion; 3012. a second dial plate; 302. a second fixed seat; 4. a third fork member; 401. a third dental fork; 4011. a fifth connecting part; 5. a first link; 6. a second link; 7. a driving cylinder; 8. connecting the bottom plate; 91. a first lifting frame assembly; 910. a first lifting frame; 911. a first slide rail structure; 92. a second lifting frame assembly; 920. a second lifting frame; 901. A chain connecting plate; 1001. a sliding groove; 1002. a sliding track; 1003. a limit protrusion; 11. a closing plate protective structure; 1101. closing the plate; 12. a drive mechanism; 120. a top mounting bracket; 1201. A drive motor; 1202. a main drive shaft; 1203. a drive shaft; 1204. a first mounting support; 1205. A second mounting support; 1206. a drive sprocket; 1207. a first drive sprocket 1208, a second drive sprocket; 1209. a first lifting sprocket; 1211. a second lifting sprocket; 1212. a third lifting sprocket; 1213. a fourth lifting sprocket; 1214. a first mating sprocket; 1215. a second mating sprocket; 1216. a third mating sprocket; 1217. a fourth mating sprocket; 13. a first detection switch; 14. a second detection switch; 15. a tray; 16. and a motor sprocket.

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.

As shown in fig. 1 and 2, the present invention provides a first embodiment of a tray stacking machine, which comprises a lifting frame mechanism, a driving mechanism 12, a swing arm bearing mechanism and a sealing plate protection structure 11 disposed outside the lifting frame mechanism and the driving mechanism 12, the lifting frame mechanism and the driving mechanism 12 are both fixedly arranged on the sealing plate protection structure 11, the driving mechanism 12 is arranged above the lifting frame mechanism, used for driving the lifting frame mechanism to move along the vertical direction, the swing arm bearing mechanism is fixedly arranged on the lifting frame mechanism, the swing arm bearing mechanism at least comprises two shifting fork assemblies fixedly arranged on the lifting frame mechanism, the shifting fork assembly comprises a driving part and a bearing swing arm, and the driving part is used for driving the bearing swing arm to swing along the horizontal direction; the driving component is used for driving the bearing swing arm to swing along the horizontal direction, and the bearing swing arm is driven to swing through torque force, so that the structural reliability is improved. The setting of guard plate structure can be to lifting frame mechanism with actuating mechanism 12 carries out safety protection and support, and actuating mechanism 12 sets up in lifting frame mechanism's top, can drive lifting frame mechanism along the steady lift of vertical direction.

Preferably, shrouding protective structure 11's bottom is equipped with first detection switch 13 for whether detect tray 15 and reach the relevant position, first detection switch 13's top is equipped with second detection switch 14, second detection switch 14 fixed mounting be in shrouding protective structure 11 is inboard, be used for detecting whether the stack of tray 15 reaches corresponding height, actuating mechanism 12 includes the controller, first detection switch 13 with second detection switch 14 all with the controller electricity is connected. The automatic detection of the whole stacking process of the tray 15 is realized by arranging the first detection switch 13 and the second detection switch 14 which are respectively used for detecting whether the tray 15 reaches the corresponding position and detecting whether the stack of the tray 15 reaches the corresponding height, and transmitting the detection signal to the controller of the driving mechanism 12.

As shown in fig. 3 and 4, the lifting frame mechanism includes a first lifting frame assembly 91 and a second lifting frame assembly 92 which are symmetrically arranged with each other, the first lifting frame assembly 91 and the second lifting frame assembly 92 have the same structure, the tray 15 is arranged between the first lifting frame assembly 91 and the second lifting frame assembly 92, the first lifting frame assembly 91 and the second lifting frame assembly 92 support and lift the tray 15 from two sides respectively, and the first lifting frame assembly 91 and the second lifting frame assembly 92 are driven synchronously by the driving mechanism 12; the first lifting frame assembly 91 comprises a first lifting frame 910 and a first sliding rail structure 911, wherein the first sliding rail structure 911 is used for enabling the first lifting frame 910 to slide along the vertical direction. The driving mechanism 12 further includes a top mounting bracket 120 fixedly connected to the shrouding protection structure 11, a driving motor 1201, a main driving shaft 1202 and a transmission shaft 1203 are fixedly mounted on the top mounting bracket 120, the main driving shaft 1202 is rotatably mounted on two first mounting supports 1204 which are symmetrically arranged through bearings, the transmission shaft 1203 is rotatably mounted on two second mounting supports 1205 which are symmetrically arranged through bearings, a driving sprocket 1206 and a first driving sprocket 1207 are disposed on the main driving shaft 1202, a second driving sprocket 1208 is disposed on the transmission shaft 1203, a motor sprocket is disposed on an output shaft of the driving motor 1201, the motor sprocket is connected to the driving sprocket 1206 through chain transmission, and the first driving sprocket 1207 is connected to the second driving sprocket 1208 through chain transmission; the main driving shaft 1202 is further provided with a first lifting sprocket 1209 and a second lifting sprocket 1211, the driving shaft 1203 is further provided with a third lifting sprocket 1212 and a fourth lifting sprocket 1213, and the driving mechanism 12 further comprises a first mating sprocket 1214, a second mating sprocket 1215, a third mating sprocket 1216 and a fourth mating sprocket 1217 which are arranged at the bottom of the shrouding protection structure 11; the first mating sprocket 1214 and the second mating sprocket 1215 are in chain-driven connection with the first lifting sprocket 1209 and the second lifting sprocket 1211, respectively; the third and fourth cooperating sprockets 1216, 1217 are respectively connected to the third and fourth lifting sprockets 1212, 1213 by chain transmission, so that the driving mechanism 12 can synchronously drive the first lifting frame 910 and the second lifting frame to synchronously lift, thereby reliably ensuring the stability of the tray 15 during lifting.

As shown in fig. 5, the first lifting frame 910 includes a plurality of cross beams 1, the swing arm bearing mechanism includes a first fork member 2, a second fork member 3 and a third fork member 4 fixedly mounted on the cross beams 1, the first fork member 2 includes a driving structure and a first swing arm structure, the driving structure is used for driving the first swing arm structure to swing, the second fork member 3 and the third fork member 4 are identical in structure and symmetrically disposed on two sides of the first fork member 2, the second fork member 3 includes a second swing arm structure, the third fork member 4 includes a third swing arm structure, the first swing arm structure is connected with the second swing arm structure and the third swing arm structure through a first connecting rod 5 and a second connecting rod 6, two ends of the first connecting rod 5 are rotatably connected with the first swing arm structure and the second swing arm structure respectively, two ends of the second connecting rod 6 are respectively in rotating connection with the first swing arm structure and the third swing arm structure; the first swing arm structure is connected with the second swing arm structure and the third swing arm structure through the connecting rod respectively, so that the second swing arm structure and the third swing arm structure are driven to swing synchronously, and synchronous control of the three shifting fork components is realized.

Preferably, more than two chain connecting plates 901 are fixedly mounted on one of the crossbeams 1 on the crossbeams 1, and mounting holes are formed in the chain connecting plates 901 for fixing chains; first fork component 2, second fork component 3 and third fork component 4 all including be used for with mounting panel fixed connection's connecting bottom plate 8, a plurality of fixed orificess have been seted up on connecting bottom plate 8.

As shown in fig. 6, the first slide rail structure 911 includes sliding grooves 1001 disposed on two sides of the first lifting frame 910 and sliding rails 1002 matching with the sliding grooves 1001, the sealing plate protection structure 11 includes a plurality of sealing plates 1101, and the sliding rails 1002 are fixedly mounted on the sealing plates 1101; the inside of the sliding groove 1001 forms a reserved space, the sliding groove 1001 comprises limiting protruding parts 1003 which are symmetrically arranged, the limiting protruding parts 1003 extend towards the inside direction of the reserved space and are used for limiting the sliding rail 1002 to move along the direction far away from the sliding groove 1001, and the arrangement of the limiting protruding parts 1003 enhances the operation reliability of the sliding rail structure.

As shown in fig. 7-9, the driving structure includes a driving cylinder 7 fixedly mounted on the mounting plate, the first swing arm structure includes a first fork 201 and a first fixing seat 202, the first fork 201 is rotatably connected to the first fixing seat 202, the driving cylinder 7 is configured to drive the first fork 201 to swing around the first fixing seat 202, the driving cylinder 7 provides power for the first fork 201, so that the first fork 201 generates a torque around the fixing seat, and the first fork 201 swings by virtue of the torque;

the second swing arm structure comprises a second tooth fork 301 and a second fixed seat 302, the second tooth fork 301 is rotatably connected with the second fixed seat 302, the third swing arm structure comprises a third tooth fork 401 and a third fixed seat, and the third tooth fork 401 is rotatably connected with the third fixed seat; the first shifting fork is connected with the second shifting fork and the third shifting fork through a first connecting rod 5 and a second connecting rod 6 respectively;

as shown in fig. 10, the first dental fork 201 includes a second connecting portion 2012 and a third connecting portion 2013 symmetrically disposed about the first fixing seat 202, a first connecting portion 2011 is disposed at a lower end of the second connecting portion 2012, the free end of the driving cylinder 7 is rotatably connected to the second connecting portion 2012, a distance between a center of the second connecting portion 2012 and a center of the first fixing seat 202 is defined as a driving arm L1, the first fork further includes a first dial 2014, a length of the first dial 2014 is L2, L1 is greater than or equal to L2/3, the length of the first dial 2014 and the length of the driving arm are maintained at a proper ratio, and the first dial 2014 is too short, which may result in an unstable support of the tray 15; the driving arm is too small, so that the working reliability of the swing arm type bearing assembly can be reduced.

As shown in fig. 11, the second prong 301 includes a fourth connection portion 3011, and the fourth connection portion 3011 and the third connection portion 2013 are connected by the first link 5; third prong 401 includes fifth connecting portion 4011, and fifth connecting portion 4011 and second connecting portion 2012 are connected to each other through second connecting rod 6.

As shown in fig. 12, the first fork 201 further includes a first rotating sleeve 203 rotatably connected to the first fixed seat 202, a reinforcing rib 204 is disposed at the bottom of the first dial plate 2014, one end of the reinforcing rib 204 is connected to the first rotating sleeve 203, and the other end extends along the length direction of the first dial plate 2014; the length of the reinforcing rib 204 is defined as L3, the L3 is greater than 2L2/5, the length of the reinforcing rib 204 is ensured to be proper, the length of the reinforcing rib 204 is too short, the reinforcing rib cannot play a role of reinforcing and supporting, the length of the reinforcing rib 204 is too long, the bearing effect cannot be improved too much, and the weight of the tooth fork is increased inversely.

As shown in fig. 13, which is a schematic view of the action structure of the swing arm type load bearing mechanism returning from the extended position to the rest position, when the swing arm type load bearing mechanism is in the extended position, the driving cylinder 7 retracts to drive the first connecting rod 5 and the second connecting rod 6 to move, and further drive the shift lever to swing out to support the tray 15; when the swing arm type bearing assembly is reset from the extending position, the driving cylinder 7 extends out to drive the first connecting rod 5 and the second connecting rod 6 to move, and further the driving lever is driven to reset.

The working principle is as follows: the utility model discloses a stack dish machine is equipped with lifting frame mechanism, actuating mechanism 12, swing arm bearing mechanism and sets up shrouding protective structure 11 in the lifting frame mechanism and the outside of actuating mechanism 12, and actuating mechanism 12 sets up in the top of lifting frame mechanism, can drive lifting frame mechanism along the motion of vertical direction; swing arm bearing mechanism fixed mounting is on the lifting frame mechanism, and swing arm bearing mechanism includes two fork assembly of fixed mounting on the lifting frame mechanism at least, and fork assembly includes driver part and bearing swing arm, and driver part is used for driving the bearing swing arm and swings along the horizontal direction, drives the bearing swing arm through torsional forces and swings, and structural reliability increases. The automatic detection of the whole stacking process of the tray 15 is realized by arranging the first detection switch 13 and the second detection switch 14 which are respectively used for detecting whether the tray 15 reaches the corresponding position and detecting whether the stack of the tray 15 reaches the corresponding height, and transmitting the detection signal to the controller of the driving mechanism 12. Through setting up first fork component 2, second fork component 3 and third fork component 4 of fixed mounting on the mounting panel, first swing arm structure is connected with second swing arm structure and third swing arm structure through the connecting rod respectively, thereby drive second swing arm structure and the synchronous swing of third swing arm structure, the synchronous control of three fork component has been realized, and actuating mechanism 12 carries out synchronous drive with main drive axle 1202 and transmission shaft 1203 through setting up driving sprocket, the stability of tray 15 in the lift in-process has been guaranteed to two sides, through setting up first detection switch 13 and second detection switch 14, be used for detecting whether tray 15 reachs the relevant position and detect whether tray 15 stack reachs the relevant height respectively, and convey the controller of detection signal to actuating mechanism 12, the automated inspection of the whole stack process of tray 15 has been realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A tray stacking machine is characterized by comprising a lifting frame mechanism, a driving mechanism (12), a swing arm bearing mechanism and a sealing plate protection structure (11) arranged at the outer sides of the lifting frame mechanism and the driving mechanism (12), the lifting frame mechanism and the driving mechanism (12) are both fixedly arranged on the sealing plate protection structure (11), the driving mechanism (12) is arranged above the lifting frame mechanism, used for driving the lifting frame mechanism to move along the vertical direction, the swing arm bearing mechanism is fixedly arranged on the lifting frame mechanism, the swing arm bearing mechanism at least comprises two shifting fork assemblies fixedly arranged on the lifting frame mechanism, the shifting fork assembly comprises a driving part and a bearing swing arm, wherein the driving part is used for driving the bearing swing arm to swing along the horizontal direction.

2. The tray stacking machine as claimed in claim 1, wherein: the lifting frame mechanism comprises a first lifting frame assembly (91) and a second lifting frame assembly (92) which are symmetrically arranged, the first lifting frame assembly (91) and the second lifting frame assembly (92) are identical in structure and are synchronously driven by the driving mechanism (12); the first lifting frame assembly (91) comprises a first lifting frame (910) and a first sliding rail structure (911), wherein the first sliding rail structure (911) is used for enabling the first lifting frame (910) to slide along the vertical direction.

3. The tray stacker according to claim 2, wherein: the first sliding rail structure (911) comprises sliding grooves (1001) arranged on two sides of the first lifting frame (910) and sliding rails (1002) matched with the sliding grooves (1001), the sealing plate protection structure (11) comprises a plurality of sealing plates (1101), and the sliding rails (1002) are fixedly mounted on the sealing plates (1101).

4. A tray stacker according to claim 3, wherein: the bottom of shrouding protective structure (11) is equipped with first detection switch (13) for whether detect tray (15) and arrive corresponding position, the top of first detection switch (13) is equipped with second detection switch (14), second detection switch (14) fixed mounting be shrouding protective structure (11) inboard for whether detect tray (15) stack reachs corresponding height, actuating mechanism (12) include the controller, first detection switch (13) with second detection switch (14) all with the controller electricity is connected.

5. A tray stacker according to claim 3, wherein: the driving mechanism (12) also comprises a top mounting rack (120) fixedly connected with the closing plate protection structure (11), the top mounting rack (120) is fixedly provided with a driving motor (1201), a main driving shaft (1202) and a transmission shaft (1203), the main driving shaft (1202) is rotatably arranged on two first mounting brackets (1204) which are symmetrically arranged through bearings, the transmission shaft (1203) is rotatably arranged on two second mounting supports (1205) which are symmetrically arranged through a bearing, the main driving shaft (1202) is provided with a driving chain wheel (1206) and a first transmission chain wheel (1207), a second transmission chain wheel (1208) is arranged on the transmission shaft (1203), a motor chain wheel is arranged on an output shaft of the driving motor (1201), the motor chain wheel is connected with the driving chain wheel (1206) through chain transmission, and the first transmission chain wheel (1207) is connected with the second transmission chain wheel (1208) through chain transmission.

6. A tray stacker according to claim 5, wherein: the main driving shaft (1202) is further provided with a first lifting chain wheel (1209) and a second lifting chain wheel (1211), the driving shaft (1203) is further provided with a third lifting chain wheel (1212) and a fourth lifting chain wheel (1213), and the driving mechanism (12) further comprises a first matching chain wheel (1214), a second matching chain wheel (1215), a third matching chain wheel (1216) and a fourth matching chain wheel (1217) which are arranged at the bottom of the sealing plate protection structure (11); the first mating sprocket (1214) and the second mating sprocket (1215) are in chain-driven connection with the first lifting sprocket (1209) and the second lifting sprocket (1211), respectively; the third matching chain wheel (1216) and the fourth matching chain wheel (1217) are respectively connected with the third lifting chain wheel (1212) and the fourth lifting chain wheel (1213) through chain transmission.

7. A tray stacker according to claim 3, wherein: the first lifting frame (910) comprises a plurality of cross beams (1), the swing arm bearing mechanism comprises a first shifting fork member (2), a second shifting fork member (3) and a third shifting fork member (4) which are fixedly arranged on the cross beams (1), the first shifting fork member (2) comprises a driving structure and a first swing arm structure, the driving structure is used for driving the first swing arm structure to swing, the second shifting fork member (3) and the third shifting fork member (4) are identical in structure and symmetrically arranged on two sides of the first shifting fork member (2), the second shifting fork member (3) comprises a second swing arm structure, the third shifting fork member (4) comprises a third swing arm structure, and the first swing arm structure is respectively connected with the second swing arm structure and the third swing arm structure through a first connecting rod (5) and a second connecting rod (6), the two ends of the first connecting rod (5) are respectively connected with the first swing arm structure and the second swing arm structure in a rotating mode, and the two ends of the second connecting rod (6) are respectively connected with the first swing arm structure and the third swing arm structure in a rotating mode.

8. The tray stacker according to claim 7, wherein: more than two chain connecting plates (901) are fixedly arranged on one cross beam (1) of the plurality of cross beams (1), and mounting holes are formed in the chain connecting plates (901) and used for fixing chains; the first shifting fork component (2), the second shifting fork component (3) and the third shifting fork component (4) comprise connecting bottom plates (8) which are used for being fixedly connected with the mounting plates, and a plurality of fixing holes are formed in the connecting bottom plates (8).

9. The tray stacker according to claim 8, wherein: the driving structure comprises a driving cylinder (7) fixedly mounted on the mounting plate, the first swing arm structure comprises a first tooth fork (201) and a first fixing seat (202), the first tooth fork (201) is rotatably connected with the first fixing seat (202), and the driving cylinder (7) is used for driving the first tooth fork (201) to swing around the first fixing seat (202); the second swing arm structure comprises a second tooth fork (301) and a second fixed seat (302), the second tooth fork (301) is rotatably connected with the second fixed seat (302), the third swing arm structure comprises a third tooth fork (401) and a third fixed seat, and the third tooth fork (401) is rotatably connected with the third fixed seat; the first shifting fork is connected with the second shifting fork and the third shifting fork through a first connecting rod (5) and a second connecting rod (6) respectively.

10. The tray stacker according to claim 9, wherein: the first tooth fork (201) comprises a second connecting part (2012) and a third connecting part (2013) which are symmetrically arranged relative to a first fixed seat (202), the lower end of the second connecting part (2012) is provided with a first connecting part (2011), the free end of the driving cylinder (7) is rotatably connected with the second connecting part (2012), a distance between the center of the second connecting part (2012) and the center of the first fixed seat (202) is defined as a driving force arm L1, the first shifting fork further comprises a first shifting plate (2014), the length of the first shifting plate (2014) is L2, and L1 is more than or equal to L2/3; the second tooth fork (301) comprises a fourth connecting part (3011), and the fourth connecting part (3011) is connected with the third connecting part (2013) through the first connecting rod (5); the third dental fork (401) comprises a fifth connecting part (4011), and the fifth connecting part (4011) is connected with the second connecting part (2012) through the second connecting rod (6); first dental floss (201) still include with first fixing base (202) rotate first rotating sleeve (203) of being connected, the bottom of first group board (2014) is equipped with a strengthening rib (204), the one end of strengthening rib (204) with first rotating sleeve (203) is connected, and the other end is followed the first length direction who dials board (2014) extends.

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