CN219093583U - Lifting equipment capable of bidirectionally conveying blanks - Google Patents

Abstract

The utility model provides lifting equipment capable of bidirectionally conveying blanks, which is arranged between conveying roller tables with height differences and comprises a lifter, a first feeding device and a second feeding device, wherein the lifter is arranged in an up-down inclined mode, the first feeding device is arranged at the top end of the lifter, and the second feeding device is arranged at the bottom end of the lifter; wherein, a transfer supporting claw is arranged on a chain of the lifter; the first material taking and feeding device is used for transferring the blanks to or from a lifter, and the lifter receives and moves the blanks through the transfer supporting claw; the second material taking and feeding device is used for moving the blank on the supporting claw moving to the bottom end of the lifter out or moving the blank into the transferring supporting claw of the lifter; the utility model can perform bidirectional operation, thereby taking the blank library as buffer, balancing the rolling line rhythm and improving the production efficiency.

Description

Lifting equipment capable of bidirectionally conveying blanks

Technical Field

The utility model relates to the technical field of metallurgical blank conveying, in particular to lifting equipment capable of bidirectionally conveying blanks in the metallurgical field.

Background

In the metallurgical field, because the number of single-time produced blanks of the continuous casting machine is the whole ladle of molten iron, and the rolling line is required to be rolled according to the requirement of an order, the number of single-batch blanks produced by the continuous casting machine is not necessarily matched with the number of the order, and therefore, the situation that the production capacity of the continuous casting machine is not matched with that of the rolling line often happens, when the number of the single-time produced blanks of the continuous casting machine is not matched with the number of the order, after the continuous casting machine is tripped, the corresponding number is sorted by a manual counting crown block and then is sent to the rolling line.

For the above case, a stock house needs to be set up between the continuous casting machine and the roll line to store the excess stock produced by the continuous casting machine, from which stock house the stock additionally required by the roll line is also extracted.

However, since the levels of the continuous casting machine, the stock house and the pass line are different, the stock is transported between the continuous casting machine, the stock house and the pass line, and an elevator is required to transport the stock, so as to solve the problem of the level difference of three sides of the continuous casting machine, the stock house and the pass line. In the process of transporting blanks by using the existing equipment, a lifter or a long-section climbing roller way is generally used for lifting the blanks, and the blanks are mostly lifted by adopting a crown block for descending.

The blank conveying mode has low automation degree and low operation efficiency, and when the operation height difference exists, a special lifter or crown block is required to be matched with conveying equipment to convey the blanks, and the blank entering and exiting procedures are complicated.

Based on the above, there is a need for improvements to existing blank conveying schemes.

Disclosure of Invention

In view of the above problems, an object of the present utility model is to provide a lifting device capable of bi-directionally conveying blanks, which is capable of simultaneously discharging the blanks out of the plan when the conveying operation passes through the present node, so as to improve the conveying efficiency.

The lifting equipment capable of bidirectionally conveying blanks is arranged between a first conveying roller way and a second conveying roller way with height difference and comprises a lifter, a first feeding device and a second feeding device, wherein the lifter is arranged in an up-down inclined mode, the first feeding device is arranged at the top end of the lifter, and the second feeding device is arranged at the bottom end of the lifter; wherein, the liquid crystal display device comprises a liquid crystal display device,

a transfer supporting claw is arranged on a chain of the lifter;

the first material taking and feeding device is used for transferring blanks on a first conveying roller way positioned at the top end of the lifter to the upper part of the lifter, and the transferring claw receives the blanks along with the operation of the lifter and moves to the bottom end of the lifter; the second feeding device is used for transferring the blank moving to the bottom end of the lifter to a second conveying roller way positioned at the bottom end of the lifter;

the second material taking and feeding device is used for transferring blanks on a second conveying roller way positioned at the bottom end of the lifter to the bottom end edge of the lifter, and the transferring claw receives the blanks along with the operation of the lifter and moves to the top end of the lifter; the first material taking and feeding device is used for transferring blanks moving to the top end of the lifter to a first conveying roller way positioned at the top end of the lifter.

The first material taking and feeding device is a material feeding and receiving device, and the material feeding and receiving device comprises a transfer sliding rail and a transfer bracket arranged on the transfer sliding rail; wherein, a transfer bracket arm is arranged on the transfer bracket; wheels are arranged at the bottom of the transfer support, and the transfer support performs limiting movement on the transfer sliding rail through the wheels.

The feeding and receiving device comprises a feeding and receiving device, a conveying bracket and a lifting mechanism, wherein the feeding and receiving device is characterized by further comprising a hydraulic cylinder, and the conveying bracket moves up and down under the driving of the hydraulic cylinder so as to lift or put down a blank to be conveyed.

The second material taking and feeding device is a second conveying roller way or a material feeding and receiving device.

The elevator comprises two chain wheels, a chain sleeved on the two chain wheels and a supporting claw arranged on the chain; wherein the supporting claw is perpendicular to the movement direction of the chain.

Wherein, the optional scheme is, the lift still includes the sprocket support, the sprocket support is used for supporting, drives the sprocket rotates.

Wherein, optionally, the lift still includes overspeed device tensioner, overspeed device tensioner is used for adjusting the elasticity of chain and location the position of chain.

The lifting equipment capable of bidirectionally conveying the blanks further comprises a blank identification device, wherein the blank identification device is arranged at the position, facing the blank spraying code, on the first conveying roller way or the second conveying roller way and used for sorting the blanks of different steel grades according to the identification result of the spraying code.

The billet recognition device comprises a camera and an AI recognition classification processor.

As can be seen from the above description, the lifting device capable of bidirectionally conveying blanks provided by the utility model has the following beneficial effects:

1. the lifter can work bidirectionally, so that the blank warehouse can be used as buffer to balance the rolling line rhythm, and the production efficiency is improved;

2. the equipment is stable in forward and reverse operation, and large impact force is not caused to the blank, so that the surface of the blank is not scratched during hot blank operation, and the quality of a finished product is ensured;

3. when the continuous casting machine is in shortage or production stopping, the lifter can be used for feeding the blanks into the stock warehouse, so that the machine is dual-purpose and has high utilization efficiency.

4. All the parts of the lifting equipment capable of bidirectionally conveying the blanks can be controlled by electric control, and automatic operation can be realized.

Drawings

Other objects and results of the present utility model will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the utility model.

In the drawings:

fig. 1 is a schematic view of a structure of a lifting apparatus capable of bidirectionally conveying blanks according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a first conveying roller table according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a feeding and receiving device according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of an elevator according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram illustrating a top-down feeding operation according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram illustrating a bottom-to-top feeding operation according to an embodiment of the present utility model;

FIG. 7 is a top plan view of a combined working structure of a lifting device for bi-directionally conveying blanks in accordance with an embodiment of the present utility model;

reference numerals illustrate:

0. blank material;

1. the first conveying roller way, 101, bearing blocks, 102, conveying rollers, 10201 and flying edges;

2. the device comprises a feeding and receiving device 201, a transfer sliding rail 202, wheels 203, a transfer bracket 204, a hydraulic cylinder 205 and a transfer bracket arm;

3. an elevator, 301, an upper bracket, 302, an upper sprocket, 303, a chain, 30301, a supporting claw, 304, a tensioning device, 3041, a tensioning sprocket, 305, an elevating track, 306, a lower bracket, 307 and a lower sprocket;

4. a second feeding device;

5. and a second conveying roller way.

The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

In the description of the present utility model, it should be understood that the 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. as indicated below, are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the content or structure of the present utility model.

Fig. 1 shows a structure of a lifting device capable of bidirectionally conveying blanks according to an embodiment of the present utility model.

As shown in fig. 1, the lifting device capable of bidirectionally conveying blanks provided by the utility model is arranged between a first conveying roller way 1 and a second conveying roller way 5 with height difference, and mainly comprises a lifter 3 which is arranged obliquely up and down, a first taking and feeding device 2 which is arranged at the top end of the lifter, and a second taking and feeding device 4 which is arranged at the bottom end of the lifter 3; in this case, a pallet claw 30301 is provided on a chain of the elevator 3, and the blank 0 to be transferred is lifted by the pallet claw 30301, and is transferred from one end to the other end of the elevator 3 in accordance with the operation of the elevator 3.

Wherein, if the position of the first conveying roller way 1 is higher than the position of the second conveying roller way 5, the high point of the lifting device capable of bidirectionally conveying blanks is arranged on the first conveying roller way 1 side, and the low point is arranged on the second conveying roller way side 5. When the blanks need to be conveyed from the first conveying roller way 1 to the second conveying roller way 5, the lifting equipment capable of bidirectionally conveying the blanks can carry out feeding operation from top to bottom: the first material taking and feeding device can transfer the blank 0 conveyed by the first conveying roller way 1 to the upper part of the lifter 3, and the supporting claw 30301 receives the blank along with the operation of the lifter 3 and moves to the bottom end of the lifter 3; the second material taking and feeding device transfers the blank 0 moved to the bottom end of the lifter 3 to the second conveying roller way 5. Conversely, when the blanks need to be conveyed from the second conveying roller way 5 to the first conveying roller way 1, the lifting equipment capable of bidirectionally conveying the blanks can carry out feeding operation from bottom to top: the second feeding and taking device can transfer the blank in the second conveying roller way 5 to the edge of the bottom end of the lifter 3, and the supporting claw 30301 receives the blank and moves to the top end of the lifter along with the operation of the lifter 3; the first material taking and feeding device transfers the blank moved to the top end of the lifter 3 to the first conveying roller way 1.

Similarly, if the position of the first conveying roller way 1 is lower than that of the second conveying roller way 5, the high point of the lifting device capable of bidirectionally conveying blanks is arranged on the side of the second conveying roller way 5, and the low point is arranged on the side of the first conveying roller way 1. When the blanks need to be conveyed from the first conveying roller way 1 to the collecting device 5, the lifting equipment capable of bidirectionally conveying the blanks performs feeding operation from bottom to top: the second taking and feeding device transfers the blank conveyed by the first conveying roller way 1 to the edge of the bottom end of the lifter 3, and the supporting claw 30301 receives the blank and moves to the top end of the lifter 3 along with the operation of the lifter 3; the first pick-and-place device transfers the blank moved to the top end of the lifter 3 to the second conveying roller way 5. Conversely, when the blanks need to be conveyed from the second conveying roller way 5 to the first conveying roller way 1, the lifting equipment capable of bidirectionally conveying the blanks can carry out feeding operation from top to bottom: the first material taking and feeding device transfers the blank in the second conveying roller way 5 to the upper part of the lifter 3, and the supporting claw 30301 receives the blank and moves to the bottom end of the lifter 3 along with the operation of the lifter 3; the second material taking and feeding device transfers the blank moved to the bottom end of the lifter 3 to the first conveying roller way 1.

In the embodiment shown in fig. 1, the first roller conveyor 1 is located higher than the second roller conveyor 5, so that the first roller conveyor 1 is located at a high point of the elevator 3 and the second roller conveyor 5 is located at a low point of the elevator 3, and the first pick-and-place device is a feed receiving device 2. In the embodiment shown in fig. 1, the second feeding and taking device is a feeding and receiving device with a similar structure to the first feeding and taking device. The second conveying roller way can also be directly selected as a material taking and feeding device for taking materials from the lifter 3 and feeding materials to the lifter according to working conditions.

The first conveying roller way 1 is used for conveying or transporting the blanks 0 to a receiving position of the feeding and receiving device 2. Fig. 2 shows a schematic structural view of the first rollgang 1 according to an embodiment of the present utility model, as shown in fig. 2, in this specific embodiment, the first rollgang 1 mainly includes bearing blocks 101, conveying rollers 102, and a flying edge 10201 disposed at one side of the conveying rollers. The bearing blocks 101 are disposed on two sides of the conveying roller 102, and the flying edge 10201 is disposed at one end of the feeding and receiving device of the conveying roller 102, and is a structure for preventing blanks from running out. The power of the first conveying roller way 1 can be driven by a motor. The specific structure of the first rollgang 1 may also be an existing metallurgical blank transfer roller structure, and will not be described in detail here.

The feeding and receiving device 2 is arranged between the first conveying roller way 1 and the lifter 3, and is used for transferring blanks conveyed by the first conveying roller way 1 to the lifter 3 for downward feeding operation or transferring blanks conveyed by the lifter 3 upward to the first conveying roller way 1.

Fig. 3 is a schematic structural view of a feeding and receiving device according to an embodiment of the present utility model.

As shown in fig. 3, the feeding and receiving device 2 of the present embodiment includes a transfer slide rail 201, a transfer bracket 203 provided on the transfer slide rail 201, and a transfer bracket 205 provided on the transfer bracket 203, that is, the transfer bracket 205 is supported on the wheel 202 through the transfer bracket 203. Wheels 202 are arranged at the bottom of the transfer support 203, the wheels 202 are clamped on the transfer slide rail 201, and the transfer support 203 can drive the transfer bracket arms 205 to move left and right through the left and right movement of the wheels 202 on the transfer slide rail 201 so as to move the blanks 0 between the first conveying roller table 1 and the lifter 3. The drive system of the transfer rail 201 may use a hydraulic cylinder, a motor, or the like depending on the space and the energy medium conditions, and will not be described in detail here. The feeding and receiving device 2 further comprises a hydraulic cylinder 204, and the transferring bracket arm 205 can move up and down under the driving of the hydraulic cylinder 204 so as to lift up or put down the blank to be transferred.

The transfer bracket 203 is used for fixing one end of the transfer bracket 205, and the other end of the transfer bracket 205 is driven by the hydraulic cylinder 204 to move up and down.

In the embodiment shown in fig. 1 and 2, the left-hand level is located directly above the middle of the first conveyor table 1, and the right-hand level is the position shown as blank 0 in the figures. After the transfer bracket 205 descends, the height of the bracket head is lower than the bracket claw 30301 of the lifter 3 at the illustrated position, the blank on the first conveying roller way 1 can be lifted by the height of the transfer bracket 205 after ascending, and the height is higher than the first conveying roller way 1 and the bottom plate of the bracket claw 30301 of the lifter 3 at the illustrated position; then transferring the blank 0 from the first conveying roller way 1 to the upper part of the bottom plate of the supporting claw 30301; finally, the blank 0 is placed on the bottom plate of the holding claw 30301, and the blank 0 is conveyed downward by the clockwise movement of the lifter 3.

Wherein the lifter 3 can rotate forward or reverse to convey the blank downward or upward.

Fig. 4 is a schematic structural view of an elevator according to an embodiment of the present utility model.

As shown in fig. 4, the lifter 3 of the present embodiment includes two sprockets (including an upper sprocket 302 provided at the top end of the lifter 3 and a lower sprocket 307 provided at the bottom end of the lifter), a chain 303 fitted over the two sprockets, and a pawl 30301 provided on the chain 303; the supporting claw 30301 is used for lifting the blank conveyed by the lifter, and is arranged perpendicular to the movement direction of the chain 303 so as to prevent the blank from sliding off in the oblique conveying process. The power of the lifter 3 can be a motor, and the motor drives the chain wheel 0 of the lifter 3 to rotate forward and backward after passing through the speed reducer to drive the lifter 3 to rotate forward and backward.

In addition, the lifter 3 further includes a sprocket support supporting the sprocket (also including an upper support 301 provided at the top end of the lifter 3 and a lower support 306 provided at the bottom end of the lifter), the upper support 301 and the lower support 306 being for supporting the upper sprocket 302 located above and the lower sprocket 307 located below, respectively.

In order to improve stability during operation of the elevator 3, the chain 303 needs to be kept in tension during operation to avoid rocking up and down or left and right, and thus, in the elevator structure of the present embodiment, a tensioning device 304 and an elevating rail 305 are further included. The tensioning device 304 is used for adjusting the tightness of the chain 303 and the position of the chain 303, and the lifting track 305 is used for limiting the travelling track of the chain 303 in the process of conveying blanks so as to prevent the chain from shaking left and right. The tensioning device 304 adjusts the tension of the chain 303 by adjusting the position of the tensioning sprocket 3041.

The second pick-and-place device 4 shown in fig. 1 is provided at the other end of the elevator 3 for taking down and transferring the blank on the holding claw 30301 of the elevator 3 away from the elevator 3 to the second conveying table 5 or transferring the blank on the second conveying table 5 to the edge of the elevator 3 so that the holding claw 30301 holds up the blank to be conveyed upward. The second feeding device 4 is disposed at a position near the end of the elevator 3 and is movable laterally above the second roller conveyor 5. The second feeding device 4 can be a feeding receiving device with the same structure as the first feeding device, and can also be a feeding device for taking materials from the lifter 3 and feeding materials to the lifter according to the working condition.

The second roller conveyor 5 or the second pick-and-place device can transfer the blanks, which are removed from the pallet 30301 of the lift 3, to the relevant collecting device for storing the blanks to be used.

The collecting device is used for collecting and storing billets, and the specific structure of the collecting device can be an existing metallurgical billet collecting structure, which is not described in detail herein.

Fig. 5 and 6 show the structure of top-down feeding and bottom-up feeding, respectively, according to an embodiment of the present utility model.

As shown in fig. 5 and 6 in combination with the embodiment shown in fig. 1, the operation mechanism of the lifting device capable of bidirectionally conveying blanks provided by the utility model is as follows:

when the lifting device capable of bidirectionally conveying the blanks is required to feed from top to bottom, the feeding receiving device 2 lifts the transferring supporting arm 205 to level the blanks 0 on the first conveying roller table 1, then the blanks advance to the right side, the supporting arm descends when the blanks advance to the supporting claw waiting position (the supporting claw 30301 position in fig. 1), at the moment, the supporting claw 30301 is connected to the blanks 0, the lifting claw 30301 on the lifting device 3 rotates clockwise, the second feeding receiving device 4 is connected to the blanks 0 when the lifting claw 30301 on the lifting device 3 moves to the receiving position of the second feeding device 4, the lifting device continues to rotate clockwise to leave, the second feeding device 4 advances to the right side in the direction of the second conveying roller table 5, the transferring supporting arm 205 descends to place the blanks on the second conveying roller table 5 when the blanks advance to the preset position above the second conveying roller table 5, and the material conveying operation from top to bottom of the blanks is finished.

When the lifting device capable of bidirectionally conveying the blanks is required to feed from bottom to top, the second material taking and conveying device 4 starts to operate, the transfer supporting arm 205 below the center line of the roller way of the second conveying roller way 5 ascends to lift one blank, then the second material taking and conveying device 4 moves leftwards to the edge of the chain, the lifting device 3 rotates the supporting claw 30301 anticlockwise to receive the blanks 0 to continue anticlockwise operation, at the moment, the material feeding and receiving device 2 is positioned at the top end position of the lifting device, the supporting arm is in a low position to wait, when the supporting claw 30301 of the blanks conveyed by the lifting device 3 moves to the top end position of the conveying chain, the transfer supporting arm 205 of the material feeding and receiving device 2 ascends to lift the blanks on the supporting claw 30301, then moves to the first conveying roller way 1, when the transfer supporting arm 205 moves the blanks to the position right above the first conveying roller way 1, the transfer supporting arm 205 descends to the first conveying roller way 1, and the blanks are lowered to the first conveying roller way 1, and the material conveying operation from bottom to top of the blanks is finished.

In summary, the lifting device capable of bidirectionally conveying blanks provided by the utility model is mechanical equipment capable of performing forward and backward operations and improving the process automation degree and the operation efficiency, the structure is not limited to the above embodiment, the high and low platforms are respectively provided with a detachable feeding mechanical device, the middle part is provided with a claw chain for conveying blanks, and the mechanisms of the two end devices meeting the requirements of detachable feeding actions can be replaced.

In addition, the lifting equipment capable of bidirectionally conveying the blanks can be matched with the billet recognition device to sort the blanks of different steel types in time, and an intelligent blank storage and conveying system is built. Specifically, as an example, the lifting device capable of bidirectionally conveying the billets further comprises a billet recognition device, the billets are formed after pouring and cutting of molten iron, the billets can be marked by code spraying through a code spraying machine, the billet recognition device can be arranged at positions, facing the billets, on the first conveying roller way and the second conveying roller way, and can be positioned in the middle of the conveying roller way and can be opposite to the areas at two ends of the billets, so that billets of different steel types can be sorted according to recognition results of the code spraying. The billet recognition device is a tool for recognizing and classifying by combining camera shooting with AI algorithm, and can comprise a camera and an AI recognition classification processor.

In the actual production and application process, the lifting equipment capable of bidirectionally conveying blanks can be combined on a production line. Fig. 7 is a top view of a combined working structure of a lifting device capable of bidirectionally conveying blanks according to an embodiment of the present utility model.

As shown in fig. 7, each bi-directionally movable blank lifting device may serve one or two conveyor tables (i.e., the first conveyor table 1 in the above embodiment), and each collecting device may serve one or two bi-directionally movable blank lifting devices to maximize the utilization of the device.

According to the lifting equipment capable of bidirectionally conveying the blanks, provided by the utility model, the lifter can bidirectionally operate, so that the blank warehouse can be used as buffer to balance the rolling line rhythm, and the production efficiency is improved; in addition, the equipment is stable in forward and reverse operation, and large impact force is not caused to the blank, so that the surface of the blank is not scratched during hot blank operation, and the quality of a finished product is ensured.

When the continuous casting machine is in shortage or production stopping, the lifter can be used for feeding the blanks into the stock warehouse, so that the machine is dual-purpose and has high utilization efficiency. In addition, the actions of all parts of the lifting equipment capable of bidirectionally conveying the blanks can be controlled by electric control, and automatic operation can be realized.

The lifting device according to the utility model, which can bidirectionally transport blanks, is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the bi-directional blank-conveying lifting apparatus set forth above without departing from the teachings of the present utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims (9)

1. The lifting equipment capable of bidirectionally conveying blanks is arranged between a first conveying roller way and a second conveying roller way with height difference and is characterized by comprising a lifter, a first feeding device and a second feeding device, wherein the lifter is arranged in an up-down inclined mode, the first feeding device is arranged at the top end of the lifter, and the second feeding device is arranged at the bottom end of the lifter; wherein, the liquid crystal display device comprises a liquid crystal display device,

a transfer supporting claw is arranged on a chain of the lifter;

the first material taking and feeding device is used for transferring blanks on a first conveying roller way positioned at the top end of the lifter to the upper part of the lifter, and the transferring claw receives the blanks along with the operation of the lifter and moves to the bottom end of the lifter; the second feeding device is used for transferring the blank moving to the bottom end of the lifter to a second conveying roller way positioned at the bottom end of the lifter;

the second material taking and feeding device is used for transferring blanks on a second conveying roller way positioned at the bottom end of the lifter to the bottom end edge of the lifter, and the transferring claw receives the blanks along with the operation of the lifter and moves to the top end of the lifter; the first material taking and feeding device is used for transferring blanks moving to the top end of the lifter to a first conveying roller way positioned at the top end of the lifter.

2. The lifting device capable of bidirectionally conveying blanks according to claim 1, wherein the first material taking and feeding device is a material feeding and receiving device, and the material feeding and receiving device comprises a transfer sliding rail and a transfer bracket arranged on the transfer sliding rail; wherein, a transfer bracket arm is arranged on the transfer bracket; wheels are arranged at the bottom of the transfer support, and the transfer support performs limiting movement on the transfer sliding rail through the wheels.

3. The lifting device capable of bidirectionally conveying blanks according to claim 2, wherein the feeding and receiving device further comprises a hydraulic cylinder, and the transferring bracket arm moves up and down under the drive of the hydraulic cylinder so as to lift or drop the blanks to be transferred.

4. A bi-directional blank transporting lifting apparatus as claimed in claim 3, wherein the second pick-and-place device is a second roller conveyor or a feed receiving device.

5. The lifting device capable of bidirectionally conveying blanks according to claim 1, wherein the lifting device comprises two chain wheels, a chain sleeved on the two chain wheels, and a supporting claw arranged on the chain; wherein, the liquid crystal display device comprises a liquid crystal display device,

the supporting claw is perpendicular to the movement direction of the chain.

6. The bi-directional blank transport lifting apparatus of claim 5, wherein said lift further comprises a sprocket support for supporting and rotating said sprocket.

7. A bi-directionally transportable blank lifting device as recited in claim 5, wherein the lifting device further comprises a tensioning means for adjusting the tightness of the chain and positioning the position of the chain.

8. The lifting device capable of bidirectionally conveying blanks according to any one of claims 1 to 7, further comprising a blank recognition device, wherein the blank recognition device is arranged on the first conveying roller way or the second conveying roller way and is opposite to a blank code spraying position, and is used for sorting blanks of different steel types according to recognition results of the code spraying.

9. The bi-directional billet conveyor lifting apparatus of claim 8 wherein said billet identification means comprises a camera and an AI identification classification processor.

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