CN220845332U - Conveying device - Google Patents

Abstract

The present application relates to a conveying device. The conveying device comprises: the conveying mechanism is provided with a feeding station and a lifting station and is used for conveying the tray group from the feeding station to the lifting station along the horizontal direction; the lifting mechanism is provided with a blanking station and is used for conveying the tray group positioned at the lifting station so that tray monomers in the tray group sequentially reach the blanking station to unload workpieces; and the lifting mechanism is in a lifting state and lifts the tray group so that the tray monomers sequentially reach the blanking station when the number of the tray monomers in the tray group in the lifting mechanism is more than the set value or after all the tray monomers in the lifting mechanism are taken away, the lifting mechanism is in the lifting state, and the lifting mechanism is in the lifting state. Thus, the intermediate waiting time can be eliminated, and the working efficiency can be improved.

Description

Conveying device

Technical Field

The application relates to the technical field of mechanical tools, in particular to a conveying device.

Background

The conveying device can be used for conveying the workpieces to a designated position so that the workpieces are taken away by the manipulator at the designated position, and for the conventional conveying device, when the workpieces are taken away at the designated position, the conveying device must convey the next batch of workpieces to the designated position, but in the process of conveying the next batch of workpieces by the conveying device, no workpieces exist at the designated position, so that waiting time exists for the manipulator, and the working efficiency of the conveying device is affected.

Disclosure of Invention

One technical problem solved by the application is how to improve the working efficiency of the conveying device.

A conveying apparatus for conveying a tray group formed by stacking a plurality of tray units carrying workpieces on each other in a vertical direction, the conveying apparatus comprising:

The conveying mechanism is provided with a feeding station and a lifting station and is used for conveying the tray group from the feeding station to the lifting station in the horizontal direction;

The lifting mechanism is used for conveying the tray group positioned at the lifting station, so that the tray monomers in the tray group sequentially reach the discharging station to unload the workpieces; and

And the lifting mechanism is in a lifting state and lifts the tray group so that the tray monomers sequentially reach the blanking station when the number of the tray monomers in the tray group in the lifting mechanism is more than a set value or after all the tray monomers in the lifting mechanism are taken away.

In one embodiment, the conveying mechanism comprises two bases and a conveying belt, the two bases are arranged at intervals, the conveying belt is arranged on each base, and the conveying belt is used for bearing the tray group.

In one embodiment, the conveying mechanism further comprises a stop cylinder arranged on the base, and a piston rod of the stop cylinder can generate telescopic movement in the vertical direction between the feeding station and the lifting station.

In one embodiment, the conveying mechanism further comprises a supporting seat and two limiting pieces, wherein the supporting seat is arranged at intervals with the base along the vertical direction, and the two limiting pieces can be connected with the supporting seat in a sliding manner along the conveying direction perpendicular to the conveying belt so as to abut against the tray set.

In one embodiment, the lifting mechanism comprises a vertical guide rail, a lifting bracket and a lifting driver, wherein the lifting bracket is in sliding connection with the vertical guide rail, and the lifting driver drives the lifting bracket to slide.

In one embodiment, the lifting driver comprises a screw rod and a screw member, wherein the screw rod is rotationally connected with the vertical guide rail, and the screw member is fixed on the lifting bracket and is in threaded connection with the screw rod.

In one embodiment, the lifting mechanism comprises two lifting assemblies, the two lifting assemblies are arranged at intervals along the arrangement direction perpendicular to the feeding station and the lifting station, each lifting assembly comprises a vertical sliding rail, a sliding seat, a transmission unit and a bracket, the sliding seat is connected with the vertical sliding rail in a sliding manner along the vertical direction, the bracket is fixedly arranged on the transmission unit, and the sliding seat moves relative to the vertical sliding rail so that the transmission unit drives the distance between the brackets of the two lifting assemblies to change; when the distance between the brackets of the two lifting assemblies is minimum, the lifting mechanism is in a lifting state; when the distance between the brackets of the two lifting assemblies is maximum, the lifting mechanism is in a avoidance state.

In one embodiment, the transmission unit comprises a rotating shaft, a cam and a follower, wherein the rotating shaft extends along the arrangement direction of the feeding station and the lifting station and is rotationally connected with the sliding seat, the cam is fixedly connected with the vertical sliding rail and is provided with a guide groove, and the follower is rotationally connected with the rotating shaft and is in sliding fit with the guide groove.

In one embodiment, the guide groove comprises a first vertical groove, a second vertical groove and a communication groove, wherein the first vertical groove and the second vertical groove extend along the vertical direction, the extending direction of the communication groove forms an included angle with the vertical direction and is communicated between the first vertical groove and the second vertical groove, the second vertical groove is closer to the blanking station along the vertical direction than the first vertical groove, and the second vertical groove is further away from the vertical sliding rail along the horizontal direction than the first vertical groove; when the follower is matched with the first vertical groove, the lifting mechanism is in a position avoiding state; the lifting mechanism is in a lifted state when the follower is mated with the second vertical slot.

In one embodiment, at least one of the following schemes is further included:

The positioning mechanism comprises a first fixing piece, a second fixing piece and a positioning piece, wherein the first fixing piece and the second fixing piece extend in the horizontal direction, the number of the first fixing pieces is two, the two first fixing pieces extend in the arrangement direction of the feeding station and the lifting station, the second fixing piece is perpendicular to the first fixing piece and connected between the two first fixing pieces, and the positioning piece is arranged on the first fixing piece and the second fixing piece so as to be abutted against the tray monomer at the discharging station;

the first sensor is used for detecting that the tray monomer is positioned at the blanking station;

The system further comprises a second sensor for detecting that the number of tray units in the tray group in the lifting mechanism has been reduced to a set value.

One technical effect of one embodiment of the present application is: in the process that the rest tray monomers in the tray group are sequentially conveyed to the blanking station by the lifting mechanism, the lifting bracket can fully utilize the time so as to move the tray group of the lifting station to the lower part of the blanking station. When all tray monomers in the tray group on the lifting mechanism are sequentially taken away, the lifting bracket just reaches the position below the blanking station from the tray group conveyed from the lifting station. So can make lifting mechanism and lifting bracket realize seamless butt joint to eliminate middle latency, eliminate longer periodic existence promptly, ensure that the unloading station is in the less and evenly spaced periodic existence tray monomer, thereby improve conveyor's work efficiency. And moreover, the conveying device can eliminate the existence of the middle buffer station, so that the occupied volume of the conveying device is reduced, and the miniaturization design of the conveying device is realized.

Drawings

Fig. 1 is a schematic perspective view of a conveying device according to an embodiment.

Fig. 2 is a schematic perspective view of the conveying device shown in fig. 1 in another view.

Fig. 3 is an exploded view of the conveyor apparatus of fig. 1.

Fig. 4 is a schematic view of a partial perspective view of a conveying mechanism in the conveying device shown in fig. 1.

Fig. 5 is a schematic perspective view of a lifting structure in the conveying device shown in fig. 1.

Fig. 6 is a schematic perspective view of a positioning mechanism in the conveying device shown in fig. 1.

Fig. 7 is a schematic perspective view of a lifting assembly in the conveying device shown in fig. 1.

Fig. 8 is an exploded view of the lift assembly of the conveyor of fig. 1.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, 2 and 3, in an embodiment of the present application, a conveying apparatus 10 is provided for conveying a tray set 20, where the tray set 20 includes a plurality of tray units 21, the number of tray units 21 in each tray set 20 may be twenty to thirty, the plurality of tray units 21 in the same tray set 20 are stacked on each other along a vertical direction, and a plurality of isolation chambers 22 may be disposed in each tray unit 21, and each isolation chamber 22 is used for accommodating a workpiece. Therefore, the work piece is carried by the tray unit 21, and the tray unit 21 protects the work piece and prevents the work piece from being damaged when the plurality of tray units 21 are stacked on each other. The conveyor 10 includes a conveyor mechanism 100, a lift mechanism 200, a lift mechanism 300, a positioning mechanism 400, a first sensor 510, and a second sensor 520.

Referring to fig. 1, 3 and 4, in some embodiments, the conveying mechanism 100 includes two bases 110 and a conveying belt 120, where the two bases 110 are disposed at intervals in a horizontal direction, and each base 110 is provided with the conveying belt 120, and the conveying belt 120 is used to carry and convey the tray set 20. During the conveying process of the pallet group 20, the pallet group 20 is simultaneously carried on the two conveying belts 120, and when the conveying belts 120 move, the pallet group 20 is linearly moved along the horizontal direction along with the conveying belts 120. The conveying mechanism 100 has a loading station 101 and a lifting station 102, and the loading station 101 and the lifting station 102 are disposed at intervals along the moving direction of the tray group 20 on the conveying belt 120. In operation, the pallet group 20 carrying the workpiece can be loaded onto the conveyor belt 120 from the loading station 101, and when the pallet group 20 is not present on the lifting station 102, the conveyor belt 120 moves to move the pallet group 20 located at the loading station 101 to the lifting station 102, so that the pallet group 20 at the lifting station 102 is timely replenished.

Referring to fig. 2, 3 and 4, in some embodiments, the conveying mechanism 100 further includes a stop cylinder 130, where the stop cylinder 130 is disposed on the base 110, the stop cylinder 130 is located between the feeding station 101 and the lifting station 102 in a horizontal direction, a piston rod of the stop cylinder 130 can generate telescopic motion in a vertical direction, and when the piston rod of the stop cylinder 130 extends in the vertical direction, the piston rod of the stop cylinder 130 plays a role in blocking, so that the tray group 20 at the feeding station 101 is prevented from sliding into the lifting station 102 during feeding, and thus the working efficiency of feeding is improved. Obviously, when the tray set 20 at the feeding station 101 needs to be conveyed to the lifting station 102, the piston rod of the stop cylinder 130 needs to be contracted, so that the blocking effect of the stop cylinder 130 is eliminated, and the tray set 20 at the feeding station 101 is smoothly conveyed to the lifting station 102.

Referring to fig. 2, 3 and 4, in some embodiments, the conveying mechanism 100 further includes a supporting seat 140 and a limiting member 150, where the supporting seat 140 is spaced from the base 110 in a vertical direction, for example, the supporting seat 140 may be located below the base 110. The limiting members 150 may be rectangular plate structures, the two limiting members 150 are disposed at intervals along a direction perpendicular to the conveying direction of the conveying belt 120, and the limiting members 150 can be slidably connected with the supporting seat 140 along the direction perpendicular to the conveying direction of the conveying belt 120. When the tray set 20 is located on the loading station 101 and the lifting station 102, the spacing piece 150 slides relative to the supporting seat 140 to adjust the spacing between the two spacing pieces 150, so that the spacing piece 150 can be abutted with the tray set 20 along the conveying direction perpendicular to the conveying belt 120, thereby playing a limiting role on the tray set 20 and preventing the tray set 20 from sliding away from the conveying belt 120. It will be appreciated that the length of the stop 150 in the vertical direction may be greater than or equal to the height of the tray set 20, so that the stop 150 can limit each tray unit 21 in the tray set 20.

Referring to fig. 2, 3, and 5, in some embodiments, the lift mechanism 200 includes a vertical rail 210, a lift carriage 220, and a lift drive 230. The vertical guide rail 210 extends in a vertical direction, the lifting bracket 220 is slidably connected to the vertical guide rod, and the lifting driver 230 enables the lifting bracket 220 to slide reciprocally in the vertical direction along the vertical guide rail 210, and the lifting bracket 220 is used to carry the tray set 20. The lifting mechanism 200 has a blanking station 201, the blanking station 201 is located above the lifting station 102, and when the lifting bracket 220 moves upwards, the tray set 20 located on the lifting station 102 can be moved towards the blanking station 201, so that each tray unit 21 in the tray set 20 can reach the blanking station 201 in sequence. For example, the respective tray units 21 of the tray group 20 are sequentially denoted as a first layer unit, a second layer unit, a third layer unit, and up to an nth layer unit in the order from top to bottom. When the lifting bracket 220 pushes the tray set 20 to move upwards for a small distance to enable the first layer of single bodies to reach the blanking station 201, the lifting bracket 220 stops moving, at this time, all the workpieces carried in the first layer of single bodies can be removed, and then all the removed first layer of single bodies can be removed by a manipulator, so that the second layer of single bodies located below the first layer of single bodies are exposed. Then, when the lifting bracket 220 pushes the tray set 20 to move upwards for a small distance to enable the second layer monomer to reach the blanking station 201, after all the workpieces carried in the second layer monomer are removed, the workpieces can be removed by the mechanical arm through the second layer monomer which is completely removed, so that the third layer monomer below the second layer monomer is exposed. And so on until lifting carriage 220 conveys the nth layer of monomer to blanking station 201.

The elevation driver 230 includes a screw 231 rotatably coupled to the vertical guide rail 210, and a screw 232 fixed to the elevation bracket 220 and screw-coupled to the screw 231. When the screw rod 231 rotates with respect to the vertical guide rail 210, the screw 232 is pushed to reciprocate in the vertical direction along the screw rod 231, so that the lifting bracket 220 reciprocates in the vertical direction following the screw 232. Of course, the lifting driver 230 may also be an air cylinder, a synchronous belt, or other linkage mechanism.

Referring to fig. 1, 3 and 6, the first sensor 510 may be disposed near the blanking station 201, and when the lifting bracket 220 drives the tray unit 21 in the tray set 20 to just reach the blanking station 201, the first sensor 510 generates feedback information, so that the lifting bracket 220 stops moving upwards, and the tray unit 21 is ensured to accurately stop at the blanking station 201, so that the workpieces in the tray unit 21 are removed, and the removed tray unit 21 is also convenient to remove.

Referring to fig. 1, 3 and 6, the positioning mechanism 400 includes a first fixing member 410, a second fixing member 420 and a positioning member 430, and both the first fixing member 410 and the second fixing member 420 may be in a beam-like structure and extend in a horizontal direction. The number of the first fixing members 410 may be two, the two first fixing members 410 extend along the arrangement direction of the feeding station 101 and the lifting station 102, and the two first fixing members 410 are arranged at intervals along the arrangement direction perpendicular to the feeding station 101 and the lifting station 102. The second fixing members 420 are perpendicular to the first fixing members 410 and connected to ends of the two first fixing members 410 disposed away from the vertical guide rail 210, and ends of the two first fixing members 410 disposed near the vertical guide rail 210 may not be connected to the second fixing members 420. The two first fixing members 410 and the second fixing member 420 are both provided with a positioning member 430, the positioning member 430 may be an air cylinder, and a piston rod of the air cylinder may stretch and retract to abut against the tray unit 21, so as to position the tray unit 21. When the tray unit 21 is located at the blanking station 201 and the positioning members 430 on the two first fixing members 410 work and abut against the tray unit 21, the tray unit 21 can be positioned along the arrangement direction perpendicular to the feeding station 101 and the lifting station 102; when the positioning member 430 on the second fixing member 420 works and abuts against the tray unit 21, the tray unit 21 can be positioned along the arrangement direction of the feeding station 101 and the lifting station 102. Therefore, by the positioning mechanism 400, the tray unit 21 located at the blanking station 201 can be finely adjusted to be accurately positioned, so that the workpiece and the empty tray unit 21 can be removed and the removal efficiency of the workpiece is improved.

Referring to fig. 2, 3 and 7, in some embodiments, the lifting mechanism 300 has a avoidance state and a lifting state, when the number of the tray units 21 in the tray set 20 in the lifting mechanism 200 is reduced to a set value, the lifting mechanism 300 is in the lifting state and lifts the tray set 20 so that the tray units 21 sequentially reach the blanking station 201, and when all the tray units 21 in the lifting mechanism 300 are removed, the lifting mechanism 300 is in the avoidance state. It is understood that, in the case where the number of the tray units 21 in the elevating mechanism 200 is higher than the set value, the lifting mechanism 300 is also in the kept away state. When the lifting mechanism 300 is in a lifted state and lifts the tray set 20, the set value may be one, two or three, that is, the number of the tray units 21 remaining in the tray set 20 on the lifting bracket 220, which are not removed, is one, two or three. When the number of the tray units 21 in the tray group 20 on the lifting bracket 220 is reduced to the set value, the lifting mechanism 300 can be made to be in a lifted state and lift all the tray units 21 remaining in the tray group 20 that are not taken away. When the lifting mechanism 300 lifts all the tray units 21 remaining in the tray set 20, the lifting bracket 220 can be moved downward to the lifting station 102 so as to convey the tray set 20 at the lifting station 102. When the lifting mechanism 300 lifts the tray set 20, the movement mode of the lifting bracket 220 can be referred to, so that the lifting mechanism 300 sequentially conveys the remaining tray units 21 in the tray set 20 to the blanking station 201, and the workpieces and the empty tray units 21 are removed after the workpieces are removed. When all the tray units 21 in the tray set 20 on the lifting mechanism 300 are removed, the lifting mechanism 300 can be in a state of avoiding, and at this time, the lifting bracket 220 just reaches the tray set 20 conveyed from the lifting station 102 to the position below the blanking station 201, so that the subsequent workpieces can be removed.

Referring to fig. 2, 3 and 6, the second sensor 520 is disposed near the blanking station 201, and when the remaining tray units 21 in the tray set 20 on the lifting bracket 220 are reduced to a set value, the second sensor 520 will send out feedback information, so that the lifting mechanism 300 is in a lifted state and lifts the remaining tray units 21 in the tray set 20, and simultaneously, the lifting bracket 220 is returned to the lifting station 102 to transport the tray set 20 at the Wang Xia material station 201.

If the lifting mechanism 300 is not provided, after the tray units 21 in the preceding tray set 20 in the lifting bracket 220 are sequentially removed, the lifting bracket 220 will return to the lifting station 102 again to move the following tray set 20 to below the blanking station 201. In the period that the lifting bracket 220 will convey the rear tray set 20 to the lower part of the blanking station 201, the blanking station 201 will not have the tray unit 21, that is, the conveying device 10 has a longer period at the blanking station 201 to provide the tray unit 21, so that the external manipulator needs to wait for a longer time, and the working efficiency of the conveying device 10 is lower. If a design mode of adding an intermediate buffer station to eliminate waiting time and improve working efficiency is adopted, the intermediate buffer station occupies a larger space, so that the conveying device 10 is huge.

With the conveying apparatus 10 in the above embodiment, in view of the existence of the lifting mechanism 300, the lifting bracket 220 can fully utilize the time period in the process that the lifting mechanism 300 lifts the remaining tray units 21 in the tray set 20 to sequentially convey to the blanking station 201, so as to move the tray set 20 of the lifting station 102 to the lower side of the blanking station 201. When all the tray units 21 in the tray set 20 are sequentially removed from the lifting mechanism 300, the lifting bracket 220 will reach the tray set 20 conveyed from the lifting station 102 to just below the blanking station 201. This allows the lift mechanism 300 and lifting carriage 220 to achieve a seamless interface, thereby eliminating intermediate waiting times, i.e., eliminating the presence of longer periods, ensuring that the tray cells 21 are present in the blanking station 201 at smaller and evenly spaced periods, thereby improving the efficiency of operation of the conveyor 10. In addition, the conveying device 10 can eliminate the existence of the intermediate buffer station, thereby reducing the occupied volume of the conveying device 10 and realizing the miniaturization design of the conveying device 10.

Referring to fig. 2, 3 and 7, in some embodiments, the lifting mechanism 300 is located above the conveying mechanism 100, and the lifting mechanism 300 includes two lifting assemblies 301, where the two lifting assemblies 301 are spaced apart along a direction perpendicular to the arrangement direction of the feeding station 101 and the lifting station 102. Each lifting assembly 301 includes a vertical sliding rail 310, a sliding seat 320, a transmission unit 330 and a bracket 340, the vertical sliding rail 310 extends along a vertical direction, the sliding seat 320 is slidably connected with the vertical sliding rail 310 along the vertical direction, the bracket 340 is fixedly arranged on the transmission unit 330, and the bracket 340 is used for contacting with the tray set 20 to directly bear the tray set 20. When the sliding seat 320 is driven to move relative to the vertical sliding rail 310 by a driving member such as an air cylinder, the transmission unit 330 drives the distance between the brackets 340 of the two lifting assemblies 301 to change. When the distance between the brackets 340 of the two lifting assemblies 301 in the direction perpendicular to the arrangement direction of the loading station 101 and the lifting station 102 is the smallest, the lifting mechanism 300 is in the lifted state so as to lift the tray group 20; when the distance between the supports 340 of the two lifting assemblies 301 along the direction perpendicular to the arrangement direction of the loading station 101 and the lifting station 102 is the largest, the lifting mechanism 300 will be in the avoidance state and stop lifting the tray set 20. When the lifting mechanism 300 is in the avoidance state, enough avoidance space can be provided for the up-and-down movement of the lifting bracket 220, and the lifting mechanism 300 is prevented from interfering with the movement of the lifting bracket 220.

Referring to fig. 7 and 8, in some embodiments, the transmission unit 330 includes a rotating shaft 331, a cam 332 and a follower 334, the rotating shaft 331 extends along the arrangement direction of the feeding station 101 and the lifting station 102, and two ends of the rotating shaft 331 are rotatably connected with the sliding seat 320, so that the rotating shaft 331 can rotate relative to the sliding seat 320. The cam 332 may be fixedly connected with the vertical sliding rail 310, the cam 332 is provided with a guide groove 333, one end of the follower 334 is rotatably connected with the rotating shaft 331, and the other end of the follower 334 is slidably matched with the guide groove 333. When the sliding seat 320 moves relative to the vertical sliding rail 310, the follower 334 slides in the guide slot 333, and the follower 334 drives the rotating shaft 331 to rotate relative to the sliding seat 320, so that the bracket 340 follows the rotating shaft 331 to rotate, and then the brackets 340 of the two lifting assemblies 301 move in opposite directions or back to back, and finally the distance between the brackets 340 of the two lifting assemblies 301 along the direction perpendicular to the arrangement direction of the feeding station 101 and the lifting station 102 is changed. Of course, other linkages may be used for the transmission unit 330, so long as the spacing between the brackets 340 of the two lift assemblies 301 can be varied.

In some embodiments, the guide slots 333 include a first vertical slot 3331, a second vertical slot 3332, and a communication slot 3333, the first vertical slot 3331 and the second vertical slot 3332 each extend in a vertical direction, the extending direction of the communication slot 3333 is disposed at an angle to the vertical direction, and the communication slot 3333 communicates between the first vertical slot 3331 and the second vertical slot 3332. In the vertical direction, the second vertical slot 3332 is closer to the blanking station 201 than the first vertical slot 3331, i.e., the second vertical slot 3332 is located above the first vertical slot 3331; along the horizontal direction, the second vertical slot 3332 is farther away from the vertical sliding rail 310 relative to the first vertical slot 3331, that is, the spacing between two second vertical slots 3332 disposed opposite to each other on the two lifting assemblies 301 is smaller than the spacing between two first vertical slots 3331 disposed opposite to each other, which can also be understood that the second vertical slot 3332 is closer to the other lifting assembly 301 relative to the first vertical slot 3331. Therefore, when the follower 334 slides into the second vertical slot 3332, the spacing between the supports 340 of the two lifting assemblies 301 along the direction perpendicular to the arrangement direction of the loading station 101 and the lifting station 102 is the smallest, and the lifting mechanism 300 is in the lifted state to support the tray set 20. When the follower 334 slides into the first vertical slot 3331, the spacing between the supports 340 of the two lifting assemblies 301 along the direction perpendicular to the arrangement direction of the loading station 101 and the lifting station 102 is the largest, and the lifting mechanism 300 is in the avoidance state to provide enough avoidance space for the up-and-down movement of the lifting bracket 220. Obviously, when the sliding seat 320 moves upward relative to the vertical sliding rail 310, the follower 334 may be located in the second vertical slot 3332 to make the lifting mechanism 300 in the lifted state, and when the sliding seat 320 moves downward relative to the vertical sliding rail 310, the follower 334 may be located in the first vertical slot 3331 to make the lifting mechanism 300 in the unseated state.

It will be appreciated that, during the process that the lifting mechanism 300 pushes the remaining tray units 21 in the tray set 20 to sequentially reach the discharging station 201, the follower 334 will always slide in the second vertical slot 3332, so that the distance between the supports 340 of the two lifting assemblies 301 along the direction perpendicular to the arrangement direction of the feeding station 101 and the lifting station 102 is kept constant. So that the lifting mechanism 300 provides stable supporting force to the tray group 20.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. A conveying apparatus for conveying a tray group formed by stacking a plurality of tray units carrying workpieces on each other in a vertical direction, the conveying apparatus comprising:

The conveying mechanism is provided with a feeding station and a lifting station and is used for conveying the tray group from the feeding station to the lifting station in the horizontal direction;

The lifting mechanism is used for conveying the tray group positioned at the lifting station, so that the tray monomers in the tray group sequentially reach the discharging station to unload the workpieces; and

And the lifting mechanism is in a lifting state and lifts the tray group so that the tray monomers sequentially reach the blanking station when the number of the tray monomers in the tray group in the lifting mechanism is more than a set value or after all the tray monomers in the lifting mechanism are taken away.

2. The conveyor apparatus of claim 1 wherein the conveyor mechanism comprises two bases and a conveyor belt, the two bases being spaced apart, each base being provided with the conveyor belt, the conveyor belt being adapted to carry the pallet group.

3. The conveying device according to claim 2, wherein the conveying mechanism further comprises a stop cylinder arranged on the base, and a piston rod of the stop cylinder can generate telescopic movement in a vertical direction between the feeding station and the lifting station.

4. A conveyor as in claim 3 wherein the conveyor further comprises a support seat disposed in spaced relation to the base in a vertical direction and two stop members slidably connected to the support seat in a direction perpendicular to the conveying direction of the conveyor belt for abutting the pallet group.

5. The transport apparatus of claim 1 wherein the lifting mechanism comprises a vertical rail, a lifting carriage slidably coupled to the vertical rail, and a lifting drive that drives the lifting carriage to slide.

6. The transport apparatus of claim 5 wherein the lift drive includes a screw rotatably coupled to the vertical rail and a screw secured to the lift bracket and threadably coupled to the screw.

7. The conveying device according to claim 1, wherein the lifting mechanism comprises two lifting assemblies, the two lifting assemblies are arranged at intervals along an arrangement direction perpendicular to the feeding station and the lifting station, each lifting assembly comprises a vertical sliding rail, a sliding seat, a transmission unit and a bracket, the sliding seat is in sliding connection with the vertical sliding rail along the vertical direction, the bracket is fixedly arranged on the transmission unit, and the sliding seat moves relative to the vertical sliding rail so that the transmission unit drives the distance between the brackets of the two lifting assemblies to change; when the distance between the brackets of the two lifting assemblies is minimum, the lifting mechanism is in a lifting state; when the distance between the brackets of the two lifting assemblies is maximum, the lifting mechanism is in a avoidance state.

8. The conveying device according to claim 7, wherein the transmission unit comprises a rotating shaft, a cam and a follower, the rotating shaft extends along the arrangement direction of the feeding station and the lifting station and is rotationally connected with the sliding seat, the cam is fixedly connected with the vertical sliding rail and is provided with a guide groove, and the follower is rotationally connected with the rotating shaft and is in sliding fit with the guide groove.

9. The conveyor apparatus of claim 8 wherein the guide slot comprises a first vertical slot, a second vertical slot, and a communication slot, the first and second vertical slots each extending in a vertical direction, the communication slot extending at an angle to the vertical and communicating between the first and second vertical slots, the second vertical slot being vertically closer to the blanking station than the first vertical slot, the second vertical slot being horizontally further from the vertical slide rail than the first vertical slot; when the follower is matched with the first vertical groove, the lifting mechanism is in a position avoiding state; the lifting mechanism is in a lifted state when the follower is mated with the second vertical slot.

10. The delivery device of claim 1, further comprising at least one of the following:

The positioning mechanism comprises a first fixing piece, a second fixing piece and a positioning piece, wherein the first fixing piece and the second fixing piece extend in the horizontal direction, the number of the first fixing pieces is two, the two first fixing pieces extend in the arrangement direction of the feeding station and the lifting station, the second fixing piece is perpendicular to the first fixing piece and connected between the two first fixing pieces, and the positioning piece is arranged on the first fixing piece and the second fixing piece so as to be abutted against the tray monomer at the discharging station;

the first sensor is used for detecting that the tray monomer is positioned at the blanking station;

The system further comprises a second sensor for detecting that the number of tray units in the tray group in the lifting mechanism has been reduced to a set value.