CN220333985U - Workpiece feeding equipment - Google Patents

Abstract

The utility model relates to workpiece feeding equipment, which comprises a frame, a lifting mechanism and a plurality of layers of conveying mechanisms, wherein the frame is provided with an adjusting mechanism corresponding to each layer of conveying mechanism, the lifting mechanism is lifted to the discharge end of the corresponding conveying mechanism, the conveying mechanism conveys workpieces on the adjusting mechanism to the lifting mechanism, the lifting mechanism drives the workpieces to move to a designated position of a next procedure, the adjusting mechanism comprises a movable first adjusting frame or a movable second adjusting frame, the spacing between the first adjusting frame and the second adjusting frame is adjusted, so that the workpiece feeding equipment is suitable for workpieces with different specifications and sizes, a limiting supporting structure is realized in the conveying process of the workpieces, the shifting phenomenon of the workpieces in the conveying process is prevented, the conveying state of the workpieces can be kept, the workpieces can not randomly change in azimuth on a conveying belt in the conveying process, the application range of the conveying equipment is wide, the workpieces can be conveyed in an oriented mode, and the placing positions of the workpieces do not need to be adjusted when the workpieces enter the next procedure.

Description

Workpiece feeding equipment

Technical Field

The utility model relates to the technical field of workpiece conveying, in particular to workpiece feeding equipment, which is particularly suitable for conveying cross-flow fan blades.

Background

Chinese patent No. 2018205654797 discloses a multi-layer conveyer belt conveying system, the conveying system is provided with a plurality of layers of conveyer belt conveying mechanisms which are arranged at intervals up and down, a conveyer belt conveying mechanism is arranged on a lifting mechanism, the lifting mechanism drives the conveyer belt conveying mechanism to lift up and down and form conveying connection with each layer of conveyer belt conveying mechanism so as to realize layer-by-layer feeding conveying of workpieces, or each layer of conveyer belt corresponds to different processing procedures, and the lifting mechanism drives the conveyer belt conveying mechanism to lift up and down onto the corresponding conveyer belt conveying mechanism. However, the conveyor belt mechanism and the conveyor belt conveying mechanism of the structure are not used for limiting the workpieces in the conveying process, so that the types of the conveyed workpieces are limited, and the conveyor belt mechanism and the conveyor belt conveying mechanism are not suitable for conveying various workpieces. Thus, there is a need for further improvement.

Disclosure of Invention

The utility model aims to provide workpiece feeding equipment, an adjusting mechanism is arranged on a rack, the adjusting mechanism comprises a first adjusting rack and a second adjusting rack, the first adjusting rack and/or the second adjusting rack are/is movably arranged on the rack, when the first adjusting rack or the second adjusting rack is/are moved, the distance between the first adjusting rack and the second adjusting rack is adjusted, so that the workpiece feeding equipment is suitable for workpieces with different specifications and sizes, the workpiece is provided with a limiting supporting structure in the conveying process, the workpiece is prevented from being shifted in the conveying process, the conveying state of the workpiece can be kept, and the workpiece can not randomly change in azimuth on a conveying belt in the conveying process.

According to the workpiece feeding equipment designed according to the purpose, the workpiece feeding equipment comprises a frame, wherein a lifting mechanism is arranged on the frame, a plurality of layers of conveying mechanisms are arranged at intervals up and down, an adjusting mechanism for supporting the workpieces is arranged on the frame corresponding to each layer of conveying mechanism, the lifting mechanism is lifted to the discharging end of the corresponding conveying mechanism, the workpieces on the adjusting mechanism are conveyed to the lifting mechanism by the conveying mechanism, the lifting mechanism drives the workpieces to move to the designated position of the next working procedure, so that the lifting mechanism and each layer of conveying mechanism form conveying connection in the lifting process, the adjusting mechanism comprises a first adjusting frame and a second adjusting frame, the first adjusting frame and/or the second adjusting frame are/is/are movably arranged on the frame, the distance between the first adjusting frame and the second adjusting frame is adjusted when the first adjusting frame or the second adjusting frame is/are moved, the workpieces with different specifications are further adapted, the workpieces are enabled to have limiting supporting structures in the conveying process, the workpieces are prevented from being shifted in the conveying process, the workpieces can be kept in the conveying state in the conveying process, the workpiece can not randomly move on the conveying belt, the application range is wide, and the workpieces can be conveyed in the directional conveying process, and the workpiece can be conveyed in the next working procedure without the need of setting of the working procedure.

The lifting mechanism comprises a support which moves up and down and a bracket which is arranged on the support in an up-and-down moving way, and the bracket is lifted along with the lifting mechanism and correspondingly supports the workpiece on the discharge end of the conveying mechanism through the up-and-down movement. The lifting mechanism drives the bracket to move to the discharge end of the corresponding conveying mechanism, and the bracket performs the action of preparing to support the workpiece through self lifting so as to catch the workpiece at the discharge end of the conveying mechanism.

The bracket comprises a bottom plate for supporting the workpiece and a first baffle plate arranged on the bottom plate, wherein a second baffle plate is arranged on the outer side of the first baffle plate, a limiting clamping groove is formed between the first baffle plate and the second baffle plate, the workpiece is supported on the bottom plate and positioned in the limiting clamping groove, the workpiece is conveyed in an up-down and front-back positioning mode in the lifting conveying process, the workpiece is prevented from being conveyed and shifted in the lifting process, and the conveying state of the workpiece is kept.

The lifting mechanism comprises a poking plate which transversely reciprocates, the poking plate drives a workpiece on the lifting mechanism to move in the moving process so as to push the workpiece to move to a designated position on the lifting mechanism, and after the bracket catches the workpiece, the workpiece automatically moves to the designated position on the lifting mechanism through the movement of the poking plate, so that the workpiece is prevented from being pushed manually.

The lifting mechanism is provided with the limiting plate at one end far away from the stirring plate for pushing the workpiece, the stirring plate pushes the workpiece on the lifting mechanism towards the direction of the limiting plate, the workpiece is positioned between the stirring plate and the limiting plate along with the lifting process of the lifting mechanism, the left-right positioning conveying of the workpiece in the lifting process is further realized, and the phenomenon that the workpiece is conveyed and shifted in the lifting process is avoided so as to maintain the conveying state of the workpiece.

The first adjusting frame and the second adjusting frame are respectively provided with a pushing part for pushing the workpiece to the lifting mechanism and a blocking part for blocking the workpiece to be conveyed, and the pushing part and the blocking part are respectively and transversely and reciprocally movably arranged on the adjusting frame. The pushing piece can push the workpiece on the conveying mechanism out of the discharging end of the conveying mechanism, and the blocking piece blocks the subsequent workpiece from continuously moving towards the direction of the pushing piece, so that the clamping phenomenon on the conveying mechanism is prevented.

The workpiece feeding equipment further comprises an inductor for detecting the workpiece, and the inductor is arranged on one side, close to the pushing end of the pushing piece, of the inductor. Firstly, in the process that the conveying mechanism conveys the workpiece, the conveying mechanism firstly conveys the workpiece to a position close to the material blocking piece, the workpiece cannot be conveyed continuously due to the arrangement of the material blocking piece, and when the inductor of each layer of conveying mechanism detects that the material pushing end of the material pushing piece does not have the workpiece, the material blocking piece moves, and the workpiece is conveyed to the material pushing end of the material pushing piece. Because the pushing piece does not move at the moment, the workpiece cannot be separated from the pushing piece, the pushing piece has the effect of blocking the workpiece from falling off, and the phenomenon that the workpiece is outwards separated when the lifting mechanism does not lift to the corresponding workpiece supporting position is prevented. When the sensor detects that the workpiece is arranged on the pushing end of the pushing piece, the lifting mechanism is lifted to the position (the corresponding discharging end of the conveying mechanism), the pushing piece moves to stop the workpiece from continuing to advance, the workpiece enters the lifting mechanism under the conveying of the conveying mechanism, and the lifting mechanism catches the workpiece.

The first adjusting frame and the second adjusting frame comprise supporting pieces which are arranged corresponding to each layer of conveying mechanism, one end of a workpiece is supported on the supporting pieces, and the supporting pieces of each layer of conveying mechanism and the conveying surface of the conveying mechanism are arranged at intervals up and down to form a space for conveying the supporting pieces and the workpiece.

And a connecting piece is arranged between the supporting pieces above the conveying mechanisms of each layer, the supporting pieces above the conveying mechanisms of each layer are connected through the connecting piece, and when the first adjusting rack or the second adjusting rack moves, the supporting pieces above the conveying mechanisms of each layer synchronously move through the connecting piece.

The frame is provided with a guide pressing plate corresponding to the outer side of the discharge end of each layer of conveying mechanism and used for guiding the workpiece to the lifting mechanism so as to guide the workpiece of the conveying mechanism to enter the lifting mechanism.

The utility model has the following beneficial effects:

the frame corresponds every layer of conveying mechanism and is equipped with the adjustment mechanism who is used for the cooperation to support the work piece, adjustment mechanism is including the activity first regulation frame and/or the second regulation frame that set up in the frame, can adjust the interval between first regulation frame and the second regulation frame, and then adapt to different specification size's work piece, realize that the work piece has spacing bearing structure in the transportation, prevent that the work piece from taking place the aversion phenomenon in the transportation, can keep the transportation state of work piece, in the transportation, the work piece can not carry out the change in position at will on the conveyer belt, make conveying equipment range of application wide, the work piece can carry out directional transportation, the work piece does not need to adjust the work piece when getting into next process and puts the position.

Drawings

Fig. 1 is a schematic perspective view of a workpiece loading apparatus according to an embodiment of the present utility model.

Fig. 2 is a schematic perspective view of a workpiece lifting mechanism according to an embodiment of the utility model.

Fig. 3 is a schematic structural view of a hidden lifting mechanism of a workpiece loading device according to an embodiment of the present utility model.

Fig. 4 is a schematic view of another azimuth structure of a hidden lifting mechanism of a workpiece loading device according to an embodiment of the utility model.

FIG. 5 is a schematic view of a part of a lifting mechanism according to an embodiment of the utility model.

FIG. 6 is a schematic view of a part of a three-dimensional structure of an adjusting mechanism according to an embodiment of the utility model.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1-6, a workpiece feeding device comprises a frame 1, wherein a lifting mechanism 2 is arranged on the frame 1, a plurality of layers of conveying mechanisms 3 are arranged at intervals up and down, an adjusting mechanism 5 for supporting a workpiece 4 in a matching manner is arranged on the frame 1 corresponding to each layer of conveying mechanism 3, the lifting mechanism 2 is lifted to a discharge end of the corresponding conveying mechanism 3, the conveying mechanism 3 conveys the workpiece 4 on the adjusting mechanism 5 to the lifting mechanism 2, the lifting mechanism 2 drives the workpiece 4 to move to a designated position of a next procedure so as to realize that the lifting mechanism 2 is in conveying connection with each layer of conveying mechanism 3 in a lifting process, the adjusting mechanism 5 comprises a first adjusting frame 6 and a second adjusting frame, the first adjusting frame 6 and/or the second adjusting frame are/is movably arranged on the frame 1, and when the first adjusting frame 6 or the second adjusting frame is moved, the distance between the first adjusting frame 6 and the second adjusting frame is adjusted, and workpieces 4 with different specifications and sizes are further adapted.

The lifting mechanism 2 comprises a support 7 which moves up and down, and a bracket 8 which is arranged on the support 7 in an up-down moving way, wherein the bracket 8 is lifted along with the lifting mechanism 2 and correspondingly supports the workpiece 4 on the discharge end of the conveying mechanism 3 through the up-down movement.

The bracket 8 comprises a bottom plate for supporting the workpiece 4 and a first baffle plate 8.1 arranged on the bottom plate, a second baffle plate 8.2 is arranged on the outer side of the first baffle plate 8.1, a limit clamping groove is formed between the first baffle plate 8.1 and the second baffle plate 8.2, and the workpiece 4 is supported on the bottom plate and positioned in the limit clamping groove.

In the present embodiment, the first baffle 8.1 and the second baffle 8.2 are disposed on the bracket 7 at intervals in the front-rear direction.

Referring to fig. 2, the stand 1 includes a first fixed frame 16, the lifting mechanism 2 includes a first driven shaft 17 and a second driving shaft 18 rotatably disposed on the first fixed frame 16, the first driven shaft 17 and the second driving shaft 18 are disposed at an upper-lower interval, driven wheels are respectively disposed at left and right ends of the first driven shaft 17, driving wheels are disposed at left and right ends of the second driving shaft 18, one driven wheel at one end of the first driven shaft 17 is in transmission connection with one driving wheel at one end of the second driving shaft 18 through a chain or a synchronous belt, and the driven wheel at the other end of the first driven shaft 17 is in transmission connection with the other driving wheel at the other end of the second driving shaft 18 through another chain or a synchronous belt.

The second driving shaft 18 is in driving connection with the motor in a driving wheel, driving belt or driving chain mode, the driving wheel is arranged in the middle of the second driving shaft 18, the driving wheel is arranged on the motor and is in driving connection with the driving wheel in the middle of the second driving shaft 18 through the driving belt or driving chain, so that the motor drives the driving wheels at two ends of the second driving shaft 18 to rotate, meanwhile, the driven wheels at two ends of the first driven shaft 17 rotate, and the chain or synchronous belt reciprocates up and down.

Referring to fig. 5, the left and right ends of the bracket 7 are provided with sliding plates 19 fixed on a chain or a synchronous belt, a linear guide rail and a sliding block are arranged between the sliding plate 19 and one side of the first fixed frame 16, the sliding block is fixed on the sliding plate 19, the linear guide rail is fixed on the first fixed frame 16, the chain or the synchronous belt drives the bracket 7 to move up and down through the sliding plate 19, and the sliding plate 19 slides up and down on one side of the first fixed frame 16.

In this embodiment, the support 7 is fixedly connected to the sliding plate, the support 7 may be integrally formed, or the support 7 may be formed as a first support and a second support that are separated from each other, and the first support and the second support are disposed at right-left intervals.

In this embodiment, two brackets 8 are arranged on the bracket 7 at intervals, the second baffle 8.2 is fixed on the bracket 7, a lifting cylinder 20 is arranged on the bracket 7 corresponding to each bracket 8, a piston rod of the lifting cylinder 20 is connected with a bottom plate of the bracket 8 in a matched manner, and a cylinder body of the lifting cylinder 20 is fixed on the bracket 7.

The bottom plate of the bracket 8 drives the first baffle plate 8.1 to be detachably fixed on the piston rod of the lifting cylinder 20, and the second baffle plate 8.2 is detachably fixed on the top of the bracket 7 so as to replace different bracket 8 and second baffle plate 8.2 on the bracket 7, thereby being suitable for supporting different workpieces 4.

Referring to fig. 1, in this embodiment, the rack 1 further includes a second fixed frame 21, and a plurality of layers of conveying mechanisms 3 disposed at intervals up and down are disposed on the second fixed frame 21, where the conveying mechanisms 3 may be a conveying belt, a chain sprocket conveying mechanism or a conveying roller conveying mechanism.

In this embodiment, take the conveyer belt as an example specifically, conveying mechanism 3 includes first curb plate, the second curb plate, first curb plate, second curb plate one end is equipped with first axis of rotation, first curb plate, the second curb plate other end is equipped with the second axis of rotation, first axis of rotation both ends all are equipped with first band pulley, second axis of rotation both ends all are equipped with the second band pulley, be equipped with the conveyer belt on first band pulley, the second band pulley, conveyer belt cladding first band pulley, second band pulley, first axis of rotation or second axis of rotation one end are connected through the reduction gear and motor transmission, be equipped with fixed motor, the fixing base of reduction gear on the second fixed frame. The second fixing frame is provided with a supporting plate seat 22 for supporting the first side plate and the second side plate, and when the motor drives the first rotating shaft or the second rotating shaft to operate, the conveying belt reciprocates to convey the workpiece 4.

The lifting mechanism 2 comprises a poking plate 9 which transversely reciprocates, and the poking plate 9 drives the workpiece 4 on the lifting mechanism 2 to move in the moving process so as to push the workpiece 4 to move to a designated position on the lifting mechanism 2.

In this embodiment, referring to fig. 5, a fixed rod seat 23 is disposed between the left and right sliding plates 19 of the support 7 of the lifting mechanism 2, a fixed plate 24 is disposed on the fixed rod seat 23, two ends of the fixed plate 24 are respectively provided with a connecting plate 25, a screw 26 which transversely rotates is disposed between the two connecting plates 25, a nut movable seat 27 is disposed on the screw 26, the screw 26 is inserted into the nut movable seat 27, the nut movable seat 27 is in threaded transmission connection with the screw 26, a motor is disposed at one end of the screw 26, the motor drives the screw 26 to rotate, the nut movable seat 27 transversely reciprocates on the screw 26, and the toggle plate 9 is fixedly connected with the nut movable seat 27.

The lifting mechanism 2 is provided with a limiting plate 12 at one end far away from the stirring plate 9 for pushing the workpiece 4, the stirring plate 9 pushes the workpiece 4 on the lifting mechanism 2 towards the limiting plate 12, and the workpiece 4 is positioned between the stirring plate 9 and the limiting plate 12 along with the lifting process of the lifting mechanism 2.

In the present embodiment, referring to fig. 5, the limiting plate 12 is fixedly provided on the outer side of a sliding plate 19 or fixedly provided on the top of the bracket 7.

The first adjusting frame 6 and the second adjusting frame are respectively provided with a pushing piece 10 for pushing the workpiece 4 to the lifting mechanism 2 and a blocking piece 11 for blocking the workpiece 4 to be conveyed, and the pushing piece 10 and the blocking piece 11 are respectively and transversely arranged on the adjusting frame in a reciprocating mode.

The workpiece feeding device further comprises an inductor for detecting the workpiece 4, wherein the inductor is arranged on one side, close to the pushing end, of the pushing piece 10.

In this embodiment, the inductor may be fixed to the frame 1 by a connection bracket.

The first adjusting frame 6 and the second adjusting frame comprise supporting pieces 14 which are arranged corresponding to each layer of conveying mechanism 3, one end of the workpiece 4 is supported on the supporting pieces 14, and the supporting pieces 14 of each layer of conveying mechanism 3 and the conveying surface of the conveying mechanism 3 are arranged at intervals up and down so as to form a space for conveying the supporting and the workpiece 4.

A connecting piece 15 is arranged between the supporting pieces 14 above each layer of conveying mechanism 3, the supporting pieces 14 above each layer of conveying mechanism 3 are connected through the connecting piece 15, and when the first adjusting frame 6 or the second adjusting frame moves, the supporting pieces 14 above each layer of conveying mechanism 3 synchronously move through the connecting piece 15.

The first adjusting frame 6 and the second adjusting frame are arranged on the second fixing frame 21 at left-right intervals, which can be understood as that the first adjusting frame 6 is arranged at the outer side far away from the conveying mechanism 3 of each layer, and the second adjusting frame is arranged at the other outer side far away from the conveying mechanism 3 of each layer.

Referring to fig. 6, in this embodiment, the pushing member 10 includes a bent baffle plate, one side of the baffle plate is provided with a discharging cylinder 28, a piston rod of the discharging cylinder 28 is cooperatively connected with the pushing member 10, each adjusting frame includes a connecting side plate 29, a cylinder body of the discharging cylinder 28 is fixed on the connecting side plate 29 through a connecting block, a screw, and the like, the discharging end of the connecting side plate 29 corresponding to the conveying mechanism 3 of each layer is provided with a discharging cylinder 28 and the pushing member 10, the pushing members 10 on the first adjusting frame 6 and the second adjusting frame which are arranged at left-right intervals form a blocking mechanism for blocking the workpiece 4 from moving to the discharging end of the conveying mechanism 3, and when the pushing member 10 extends, the workpiece 4 cannot be pulled out from the discharging end of the conveying mechanism 3.

In this embodiment, the connecting side plate 29 is fixedly connected with the supporting member 14 above the conveying surface of each layer of conveying mechanism 3 through other connecting plate assemblies 30, the supporting members 14 above the left and right ends of the conveying surface of each layer of conveying mechanism 3 are respectively provided with a blocking cylinder 31, the piston rod of each blocking cylinder 31 is matched and connected with the material blocking member 11, the material pushing member 10 and the material blocking member 11 are arranged at intervals front and back, and when the material blocking member 11 stretches out, the workpiece 4 is blocked from advancing towards the direction of the material pushing member 10.

In this embodiment, the connecting plate block assemblies 30 and the connecting pieces 15 on the first adjusting frame 6 and the second adjusting frame are provided with sliding blocks sliding on the second fixing frame 21, and the second fixing frame 21 is provided with linear guide rails corresponding to the sliding blocks, so that the first adjusting frame 6 and the second adjusting frame can move conveniently.

Referring to fig. 6, in this embodiment, two connecting pieces 15 are disposed between the supporting pieces 14 disposed at intervals under the mountain on the first and second adjusting frames 6 and 15, a fixed supporting piece 32 is disposed between the two connecting pieces 15 at intervals, a movable nut seat is disposed on the fixed supporting piece 32, a fixed nut seat is disposed on the second fixed frame 21 corresponding to the movable nut seat, an adjusting screw 33 is disposed on the movable nut seat and the fixed nut seat, the adjusting screw 33 is inserted into the movable nut seat and the fixed nut seat, the movable nut seat and the fixed nut seat are in threaded transmission connection with the adjusting screw 33, one end of the adjusting screw 33 is provided with a hand wheel or connected with a motor by means of a belt pulley, so that the adjusting screw 33 rotates, and when the adjusting screw 33 rotates, the movable nut seat can only reciprocate transversely on the adjusting screw 33 to drive the whole first adjusting frame 6 or the second adjusting frame to move transversely only to adjust the distance between the first and second adjusting frames 6 and 33.

The frame 1 is provided with a guide pressing plate 13 corresponding to the outer side of the discharge end of each layer of conveying mechanism 3 and used for guiding the workpiece 4 to the lifting mechanism 2.

The fixing structure is a screw or a welded fixing manner, and will not be described in detail in this embodiment. The thread transmission connection is a connection mode of internal and external threads. The detachable fixing may be a detachable fixing connection structure such as a screw or a connection block, which will not be described in detail in this embodiment.

In the embodiment, the workpiece 4-position cross flow wind wheel is provided with support shafts at two ends of the cross flow wind wheel, each support piece 14 is provided with a support column, the support shafts at two ends of the cross flow wind wheel correspondingly bear on the support columns of the support pieces 14, and the support shafts and the support columns form rolling contact in the conveying process of the workpiece 4, so that conveying friction force is reduced.

The specific working process is as follows:

the debugging personnel can adjust the interval between the first regulation frame 6 according to the size specification of work piece 4, the second regulation frame, when carrying work piece 4 for the first time, the fender material piece 11 on the outer end about every layer of conveying mechanism 3 all does not stretch out, the pushing component 10 on the outer end about every layer of conveying mechanism 3 all stretches out, when the conveying mechanism 3 of arbitrary one deck carries work piece 4, work piece 4 is owing to not having the baffle of fender material piece 11, work piece 4 gets into smoothly on pushing the material end of pushing component 10, but because pushing component 10 stretches out, work piece 4 still can not outwards deviate from pushing component 10, in addition, the fender material piece 11 of this layer can stretch out and stop subsequent work piece 4 and carry.

The sensor detects that the layer of conveying mechanism 3 is provided with a workpiece 4, the lifting mechanism 2 drives the bracket 8 to arrive at a corresponding position, the bracket 8 firstly ascends, the pushing piece 10 movably retracts, the workpiece 4 slides down on the bracket 8 along the guide pressing plate under the conveying action, the stirring plate 9 movably pushes the workpiece 4, the workpiece 4 is positioned on the lifting mechanism 2, and the lifting mechanism 2 drives the workpiece 4 to arrive at a designated position of the next procedure. Since the conveying mechanism 3 of this layer has no workpiece 4, the sensor detects that there is no workpiece 4 on the pushing end of the pushing member 10, so that the protruding blocking member 11 is retracted again to stop the workpiece 4 from conveying, and the conveying manner of the conveying mechanism 3 of other layers is the same, which will not be described in detail here. Therefore, a layer-by-layer blanking mode can be realized, so that the workpieces 4 are orderly conveyed, and the workpiece conveying device is suitable for the workpieces 4 with different specifications and sizes.

The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing description merely illustrates the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a loading equipment of work piece, includes frame (1), its characterized in that: the lifting mechanism (2) is arranged on the frame (1), the plurality of layers of conveying mechanisms (3) are arranged at intervals up and down, an adjusting mechanism (5) for supporting the workpieces (4) in a matching mode is arranged on the frame (1) corresponding to each layer of conveying mechanism (3), the lifting mechanism (2) is lifted to the discharging end of the corresponding conveying mechanism (3), the conveying mechanism (3) conveys the workpieces (4) on the adjusting mechanism (5) to the lifting mechanism (2), the lifting mechanism (2) drives the workpieces (4) to move to the appointed position of the next procedure, so that conveying connection between the lifting mechanism (2) and each layer of conveying mechanism (3) in the lifting process is achieved, the adjusting mechanism (5) comprises a first adjusting frame (6) and a second adjusting frame, the first adjusting frame (6) and/or the second adjusting frame are movably arranged on the frame (1), and the distance between the first adjusting frame (6) and the second adjusting frame is adjusted when the first adjusting frame or the second adjusting frame is moved, and then workpieces (4) with different sizes are adapted.

2. The workpiece loading apparatus of claim 1, wherein: the lifting mechanism (2) comprises a support (7) which moves up and down, and a bracket (8) which is arranged on the support (7) in an up-down moving way, wherein the bracket (8) is lifted along with the lifting mechanism (2) and correspondingly supports the workpiece (4) on the discharge end of the conveying mechanism (3) through the up-down movement.

3. The workpiece loading apparatus of claim 2, wherein: the bracket (8) comprises a bottom plate for supporting the workpiece (4), a first baffle plate (8.1) arranged on the bottom plate, a second baffle plate (8.2) arranged on the outer side of the first baffle plate (8.1), and a limiting clamping groove formed between the first baffle plate (8.1) and the second baffle plate (8.2), wherein the workpiece (4) is supported on the bottom plate and positioned in the limiting clamping groove.

4. The workpiece loading apparatus of claim 1, wherein: the lifting mechanism (2) comprises a poking plate (9) which transversely reciprocates, and the poking plate (9) drives the workpiece (4) on the lifting mechanism (2) to move in the moving process so as to push the workpiece (4) to move to a designated position on the lifting mechanism (2).

5. The workpiece loading apparatus of claim 4, wherein: the lifting mechanism (2) is provided with a limiting plate (12) at one end far away from the stirring plate (9) for pushing the workpiece (4), the stirring plate (9) pushes the workpiece (4) on the lifting mechanism (2) towards the direction of the limiting plate (12), and the workpiece (4) is positioned between the stirring plate (9) and the limiting plate (12) along with the lifting process of the lifting mechanism (2).

6. The workpiece loading apparatus of claim 1, wherein: the first adjusting frame (6) and the second adjusting frame are respectively provided with a pushing piece (10) for pushing the workpiece (4) to the lifting mechanism (2), and a blocking piece (11) for blocking the workpiece (4) to be conveyed, wherein the pushing piece (10) and the blocking piece (11) are respectively and transversely arranged on the adjusting frame in a reciprocating mode.

7. The workpiece loading apparatus of claim 6, wherein: the device also comprises an inductor for detecting the workpiece (4), wherein the inductor is arranged on one side of the pushing end of the pushing piece (10) close to the inductor.

8. The workpiece loading apparatus of claim 6, wherein: the first adjusting frame (6) and the second adjusting frame comprise supporting pieces (14) which are arranged corresponding to each layer of conveying mechanism (3), one end of each workpiece (4) is supported on each supporting piece (14), and the supporting pieces (14) of each layer of conveying mechanism (3) and the conveying surface of each conveying mechanism (3) are arranged at intervals up and down so as to form a space for conveying the supporting pieces and the workpieces (4).

9. The workpiece loading apparatus of claim 8, wherein: a connecting piece (15) is arranged between the supporting pieces (14) above each layer of conveying mechanism (3), the supporting pieces (14) above each layer of conveying mechanism (3) are connected through the connecting piece (15), and when the first adjusting frame (6) or the second adjusting frame moves, the supporting pieces (14) above each layer of conveying mechanism (3) synchronously move through the connecting piece (15).

10. The workpiece loading apparatus of claim 1, wherein: the outer sides of the discharge ends of the machine frames (1) corresponding to the conveying mechanisms (3) of each layer are respectively provided with a guide pressing plate (13) for guiding the workpieces (4) to the lifting mechanisms (2).