CN210557338U

CN210557338U - Liftable move and carry device and material conveying system

Info

Publication number: CN210557338U
Application number: CN201920768885.8U
Authority: CN
Inventors: 陈建宝; 周飞
Original assignee: Suzhou Honbest Clean Technology Co ltd
Current assignee: Suzhou Honbest Clean Technology Co ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-05-19
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a liftable move and carry device and material conveying system, wherein the liftable move and carry the device, including the transfer chain, the transfer chain is connected its ground chain elevating system that removes between first height and second height of drive, chain elevating system includes a first power supply just first power supply is located one side of transfer chain, and, chain elevating system to ascending pulling force is applyed to the relative both sides of transfer chain. This scheme design is exquisite, simple structure, realizes the oscilaltion of transfer chain through the unique chain elevating system of design, only needs a power supply, has not only reduced cost and energy consumption, and the lift control of transfer chain is simple simultaneously, for the control of two power supplies, the very big reduction of the control degree of difficulty.

Description

Liftable move and carry device and material conveying system

Technical Field

The utility model relates to a technical field is carried to the material, specifically relates to a liftable move and carry device.

Background

With the rapid development of industrial automation, various articles are conveyed in the processes of enterprise production and logistics sorting by means of a flow line, and therefore various conveying line devices are developed and applied.

Conventional belt conveyor, roller conveyor or drag chain conveyor etc. when using, its position often is fixed, and to some double-deck or multilayer transfer chain, often need to realize the butt joint of different layers transfer chain, and the transfer chain of this kind of fixed knot structure can't realize moving up and down and carry out the butt joint, therefore some existing designs can these transfer chains place on elevating gear, thereby make the transfer chain can go up and down in order to realize the butt joint between the transfer chain of different heights, a box transfer chain reciprocating elevator that patent application No. 201711033042.5 revealed for example, it realizes the lift of transfer chain through setting up lead screw and motor in the both sides of transfer chain, but the defect of this kind of structure lies in:

two motors are needed for driving, so that the number of power sources and energy consumption are increased; and because two motors exist, in order to ensure the synchronous movement of two sides of the conveying line and the consistency of the two sides, the starting and stopping, the rotating direction, the rotating speed and the like of the two motors must be effectively controlled, the control precision requirements of the two motors are increased, and the control difficulty is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liftable move and carry device and material conveying system in order to solve the above-mentioned problem that exists among the prior art.

The purpose of the utility model is realized through the following technical scheme:

liftable move and carry device, including the transfer chain, its ground chain elevating system that removes between first height and second height of drive is connected to the transfer chain, chain elevating system includes a first power supply just first power supply is located one side of transfer chain, and, chain elevating system to ascending pulling force is applyed to the relative both sides of transfer chain.

Preferably, in the lifting transfer device, the conveying line is slidably disposed on a guide rail on the frame through a sliding block.

Preferably, in the lifting transfer device, the conveying line includes a base frame, two rows of rollers capable of rotating are arranged at equal heights and in a gap on two sides of the base frame, grooves are formed on the surfaces of the rollers, belts are respectively sleeved on the two rows of rollers, and the two rows of rollers are driven by a second power source.

Preferably, in the liftable transfer device, the diameter of the second roller located in the middle of the rollers is smaller than the diameter of the third rollers located at the two ends, and the top of the second roller located in the middle is as high as the top of the third rollers located at the two ends.

Preferably, in the lifting transfer device, the second roller at the middle position is a teflon roller or the circumferential surface of the second roller is coated with teflon paint.

Preferably, in the lifting transfer device, guide plates located on the base frame are respectively arranged above the outer sides of the two belts, and the two guide plates form a horn-shaped guide opening with a large outer end and a small inner end.

Preferably, in the lifting transfer device, one end of each of the two belts is further provided with a baffle located on the base frame and higher than the top point of the roller, and the inner end surface of the baffle is provided with a cushion pad.

Preferably, in the liftable transfer device, the chain type lifting mechanism comprises at least one support shaft, the support shaft is connected with the first power source for driving the support shaft to lift, two first chain wheels are rotatably arranged at two ends of the support shaft, the two first chain wheels are respectively meshed with a first chain, a first end of the first chain is fixed on the frame, a second end of the first chain is fixed on one side of the conveying line, and the second end is higher than the first end; chain elevating system still including rotationally set up in at least two second sprocket and two at least third sprockets of transfer chain bottom both sides, every pair second sprocket and third sprocket and a second chain meshing that the position is relative, the second chain is Z shape extension and third end fourth end is fixed respectively in the frame, and the fixed height of third end is higher than the fixed height of fourth end.

Preferably, in the lifting transfer device, the first power source is an air cylinder, an oil cylinder or an electric cylinder, and the support shaft is connected to the movable part of the first power source.

Preferably, the lifting transfer device comprises at least two transmission lines with height difference, and the same end of the two transmission lines is provided with any one of the lifting transfer devices.

The utility model discloses technical scheme's advantage mainly embodies:

1. this scheme design is exquisite, simple structure, realizes the oscilaltion of transfer chain through the unique chain elevating system of design, only needs a power supply, has not only reduced cost and energy consumption, and the lift control of transfer chain is simple simultaneously, for the control of two power supplies, the very big reduction of the control degree of difficulty.

2. Be provided with a plurality of gyro wheels on the transfer chain, accomplish the full title support to the belt, the transport of the material of being more convenient for also does benefit to maintenance and change. The diameter of the idler wheel positioned in the middle is smaller than that of the third idler wheels positioned at two ends, so that the upper portion of the idler wheel is in contact with the belt, the lower portion of the idler wheel in the middle is not in contact with the idler wheel, abrasion to the belt is reduced, the belt is more durable, and cost is saved.

3. Be provided with the deflector on the transfer chain for article are difficult for appearing deflecting, and the deflector has the opening of loudspeaker form, has increased open area, makes article change get into the transfer chain, has improved the fault-tolerance of article placement position when carrying.

4. The rack is provided with a baffle to prevent the materials from continuously advancing, and the baffle is provided with a cushion pad at a corresponding position to avoid hard contact between the articles and the baffle and reduce the abrasion to the articles.

5. The first power source can be an air cylinder or an oil cylinder or an electric cylinder, can be selected in various ways, can be selected according to different application occasions, and is good in flexibility.

Drawings

Fig. 1 is a front view of the lifting transfer device of the present invention;

fig. 2 is a top view of the lifting transfer device of the present invention;

fig. 3 is a partial structure perspective view of the lifting transfer device of the present invention;

fig. 4 is a plan view of a second embodiment of the liftable transfer device of the present invention;

FIG. 5 is a schematic view of the material delivery system of the present invention;

FIG. 6 is a side view of a conveyor line in the material handling system of the present invention;

FIG. 7 is a top view of a conveyor line in the material handling system of the present invention;

FIG. 8 is an enlarged view of area A of FIG. 6;

fig. 9 is a top view of another embodiment of a transmission line in a material handling system according to the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

The following description is made with reference to the accompanying drawings, where the present invention discloses a lifting transfer device, as shown in fig. 1, the lifting transfer device includes a conveying line 2, the conveying line 2 is connected to drive a chain type lifting mechanism 3 moving between a first height and a second height, the chain type lifting mechanism 3 includes a first power source 33, the first power source 33 is located on one side of the conveying line 2, and the chain type lifting mechanism 3 applies upward pulling force to two opposite sides of the conveying line 2.

In the embodiment, as shown in fig. 1, preferably, the conveyor line 2 includes a base frame 21, two rows of first rollers 22 capable of rotating in an autorotation manner are disposed on two sides of the base frame 21 at equal heights and at intervals, a groove 221 is formed on a surface of each first roller 22, a belt 23 is respectively sleeved on each of the two rows of first rollers 22, and a protruding strip (not shown in the figure) matched with the groove 221 on each first roller 22 is disposed on each belt 23, so that the belt can be effectively placed in a deviation manner, and at the same time, the two rows of first rollers 22 keep a gap, therefore, the breadth of the belt can be effectively reduced, the cost is reduced, and in combination with the row of first rollers 22, the whole extending breadth of the belt can be effectively supported, so that the bearing capacity of the conveying line is improved to meet the conveying requirement of articles with large self weights.

Further, the two rows of the first rollers 22 are driven by a second power source 24, and in detail, as shown in fig. 1, at least one pair of the two rows of the first rollers 22 are opposite to each other, and they are fixed on a rotating shaft 25, the rotating shaft 25 is rotatably erected on the frame 21, and one end of the rotating shaft 25 is connected to a power output shaft of the second power source 24 (a motor or a structure formed by a motor, a gear, a chain and a sprocket) through an expanding sleeve or a coupling.

In addition, in order to reduce the wear on the belt 23 and increase the service life of the belt 23, as shown in fig. 2 and 3, the diameter of the middle second roller 222 of the first roller 22 is smaller than the diameters of the two third rollers 223, and the top of the middle second roller 222 is as high as the tops of the two third rollers 223, so that in use, the middle second roller 222 can effectively provide support and ensure the bearing performance of the conveying line, and at the same time, the middle second roller 222 can only contact with one side of the inner surface of the belt, thereby reducing the wear.

Further, the second roller 222 at the middle position is a teflon roller or the circumference surface of the second roller 222 is coated with teflon paint, so that the self-lubricating property of the teflon material can be effectively utilized, the friction between the second roller 222 and the belt is reduced, the starting difficulty of the conveying line can be reduced, and the smoothness of the belt transmission can be ensured; finally, wear of the rollers and belt may be reduced.

Further, in order to prevent the position of the articles on the conveying line 2 from shifting and even from falling off from the two belts 23, as shown in fig. 2, guide plates 26 are respectively disposed on the outer sides of the two belts 23, and the two guide plates 26 form a trumpet-shaped guide opening with a large outer end and a small inner end, so that the articles input to the belts can be effectively guided and fed conveniently.

In order to feed materials to the conveying line 2, as shown in fig. 2, the articles are punched out of the conveying line 2, a baffle 27 which is positioned on the base frame 21 and is higher than the top point of the roller is further arranged at one end of each of the two belts 23, a buffer 28 is arranged on the inner end surface of the baffle 27, so that the articles input to the conveying line 2 can be blocked, impact caused by hard contact between the articles and the baffle 27 is avoided through the buffer 28, and the safety of the articles is ensured, wherein the buffer can be made of various soft plastic materials, silica gel, sponge and the like.

In order to reduce the shaking of the conveying line 2 as much as possible during the lifting process, a guide mechanism which is matched with the lifting of the conveying line 2 is arranged on the frame 1, as shown in fig. 1, the guide mechanism comprises four slide blocks 4 which are arranged on the conveying line 2 and distributed in a rectangular shape, and the slide blocks 4 are slidably arranged on a guide rail 5 on the frame 1, so that the slide blocks 4 slide along the guide rail 5 and limit the position of the conveying line 2 during the lifting process of the conveying line 2.

In another embodiment, as shown in fig. 4, in order to further improve the carrying performance of the conveying line, a supporting table 29 is further arranged between the two belts 23, a set of wheels 210 is rotatably arranged on the supporting table 29, and the tops of the wheels 210 are flush with the upper surfaces of the belts 23.

As shown in fig. 1, the chain type lifting mechanism 3 includes at least one supporting shaft 31, the supporting shaft 31 is located outside one side of the base frame 21 of the conveyor line, and the extending direction of the supporting shaft 31 is parallel to the conveying direction of the conveyor line 2, the supporting shaft 31 is connected to the first power source 33 for driving the supporting shaft to lift, and two first chain wheels 32 are rotatably provided at two ends of the supporting shaft 31 through bearings, the two first chain wheels 32 are respectively engaged with a first chain 34, a first end 341 of the first chain 34 is fixed on the frame 1, a second end 342 is fixed on one side of the conveyor line 2, and the second end is higher than the first end; when the first power source 33 drives the supporting shaft 31 to move upwards, the second end of the first chain moves upwards, so that one side of the conveying line 2 connected with the first chain is lifted.

Further, as shown in fig. 3, the chain type lifting mechanism 3 further includes at least two second sprockets 35 and at least two third sprockets 36 rotatably disposed at two sides of the bottom of the conveying line, the second sprockets 35 and the third sprockets 36 are located in a one-to-one correspondence, and are respectively fixed at two sides of the bottom of the base frame 21 of the conveying line 2 through mounting brackets 38, each pair of the second sprockets 35 and the third sprockets 36, which are located opposite to each other, are engaged with a second chain 37, the second chain 37 extends in a Z shape, and third and

fourth ends

371 and 372 thereof are respectively fixed on the frame 1, the third end 371 is fixed at a side of the frame 1 close to the second sprocket 35, the fourth end is fixed at a fixed position close to the first end of the first chain, and the third end is higher than a fixed height of the fourth end 372, wherein the second sprocket 35 is located above the second chain 37, the third sprocket 36 is located at a lower portion of the second chain.

Preferably, the first power source 33 is an air cylinder or an oil cylinder or an electric cylinder, the supporting shaft 31 is connected with the movable part of the supporting shaft, when the first power source 33 is an air cylinder, the air cylinder shaft is connected with the middle position of the supporting shaft 31, when the air cylinder is adopted, the conveying line can be normally switched between 2-3 height points, and when the oil cylinder or the electric cylinder is adopted, the conveying line can be stopped at any point in the stroke range of the conveying line, so that the conveying line 2 can have more flexible height selection.

When the lifting device works, when the conveying line 2 needs to be lifted, the supporting shaft 31 is driven to ascend by the first power source 33, so that the first chain wheel 32 ascends to drive the second ends of the two first chains to ascend, then one side of the conveying line 2 connected with the first chain wheel is driven to ascend, the other end of the conveying line 2 synchronously ascends under the action of the second chains, the second chain wheel and the third chain wheel, and the whole lifting of the conveying line 2 is finally realized; when the conveyor line 2 needs to be lowered, the first power source 33 may drive the support shaft 31 to be lowered.

The scheme further discloses a material conveying system, as shown in fig. 5, which comprises at least two conveying lines 6 and 7 with height difference, wherein the same end of the two conveying lines 6 and 7 is provided with the lifting transfer device 10.

Wherein said transmission lines 6, 7 can be various known transmission lines, such as belt conveyor, roller conveyor, drag conveyor, deflection wheel/ball conveyor, etc., said transmission lines 6, 7 are identical in structure, considering the present solution for the transmission of heavy objects, and the following description is given with reference to the transmission line 6.

As shown in the accompanying drawings, as shown in fig. 6 and 7, the conveying line 6 includes at least one conveying section, the conveying section includes a frame 61, two chain plate conveying belts 62 with parallel conveying directions are arranged on the frame 61 at equal heights and intervals, and the width of each chain plate conveying belt 62 is not more than 1/4 of the width of the conveying surface of the conveying section.

The traditional whole conveying belt is changed into two narrower chain plate conveying belts, the width of each chain plate is reduced on the basis of ensuring the bearing performance, so that the strength of each chain plate is improved, the deformation of each chain plate is prevented, and a complex transmission structure is not needed for a roller conveying line; and the clearance between two link joint conveyer belts provides space for the installation of other equipment, is convenient for use with other equipment structures combination.

Wherein two said connecting plate conveyer belts can have power sources separately, can share a power source too, preferably they share a power source, specifically as follows: the chain plate conveying belt comprises two side plates 623 arranged at the top of the frame 61 at intervals, a rotating shaft 622 is rotatably erected on the same-direction ends of the side plates 623 of the two chain plate conveying belts 62, for example, the rotating shaft 622 can rotate through two bearings arranged on the side plates 623, a pair of chain wheels 621 for keeping gaps are respectively arranged on the rotating shaft 622 and close to the two ends, as shown in fig. 7, the rotating shaft 622 is connected with a power source 6280 for driving the rotating shaft to rotate, the power source can be a motor connected with one end of the rotating shaft 622, or can be a transmission mechanism formed by the motor and a belt pulley or a chain wheel 6290 and a chain (not shown in the figure).

As shown in fig. 6 and 7, a supporting shaft 624 extending in a direction perpendicular to the conveying direction of the conveying line is disposed at the other end of each side plate 623 opposite to the same end, both ends of each supporting shaft 624 extend out of both sides of the side plate 623, a sprocket 625 opposite to the sprocket 621 at the other end is rotatably disposed at one end of the supporting shaft 624, a chain 626 is sleeved on the pair of

sprockets

621 and 625 opposite to each other at both ends, connecting pieces 627 corresponding to each other are disposed at side edges where two adjacent chains 626 are close to each other, a link plate 628 is fixed on the pair of connecting pieces 627, vertex angles of both sides of the link plate 628 are rounded corners, and an upper surface of the link plate 628 protrudes out of an upper surface of the chain.

In addition, in order to facilitate the installation of the chain 626 and adjust the tension of the chain 626 as required to ensure sufficient supporting strength, the position of the supporting shaft 624 can be moved along the first direction to adjust the distance between the two

sprockets

621 and 625, and in detail, as shown in fig. 8, the other end of the supporting shaft 624 extending to the outer side of the side plate 623 is connected with an adjusting screw 629, the connecting structure of the adjusting screw 629 and the supporting shaft 624 is connected according to the connection manner of the screw of the lead screw and the movable nut, so that the position of the supporting shaft 624 on the adjusting screw 629 can be adjusted by rotating the adjusting screw 629, the adjusting screw 629 is rotatably arranged on a connecting seat 6210 fixed at the outer wall of the side plate 23, the adjusting screw 629 is arranged at the position on the connecting seat 210 when rotating, the connecting seat 6210 is provided with a kidney-shaped hole 2101 for moving the supporting shaft 24, the support shaft 624 is also fixed in position by a nut 6220 and a washer 6230.

Meanwhile, as shown in fig. 7, the conveying section further includes two stopper rods 6240 located outside the two chain plate conveying belts 62 and above the conveying surfaces thereof, two ends of the two stopper rods 6240 respectively form a bell mouth shape with a large outer end and a small inner end, so as to guide the articles, and the distance between the stopper rods 6240 at two sides can be adjusted.

Specifically, as shown in fig. 7, at least two mounting plates 6250 are respectively disposed on the outer side walls of the side plates 623, screw rods 260 are screwed on the mounting plates 6250, the screw rods 260 are connected with the limit rods 6240, chain wheels 6270 can be further disposed at the outer ends of the screw rods 6260, and the chain wheels 6270 on the screw rods 6260 connected with the same limit rod 6240 are connected through a chain (not shown in the figure), so that other screw rods can be driven to adjust by adjusting one screw rod 6260, the synchronization and the accuracy of adjustment of different positions of the same limit rod can be ensured, and the adjustment efficiency is increased.

Of course, the two connecting screws 6260 of the stopper bar 6240 may be fixed to the mounting plate by a pair of nuts.

Meanwhile, in other structures, two chain plate conveying belts of the conveying section can be replaced by two narrower belt conveying belts or roller conveying belts, and the driving structure can be adjusted according to needs, but the supporting performance and the bearing performance of the belt conveying belts are relatively poor relative to the chain plate conveying belts, and the belts are likely to be damaged due to excessive load when tens of kilograms or even heavier articles are conveyed; and when adopting the roller conveyer belt, though can provide better support nature, need realize connecting and the transmission between the roller through a plurality of sprockets and chain, one has increased the complexity of part cost and equipment, and on the other hand, because the transfer chain is longer, power transmission's loss increases, requires to improve to the power of motor.

Further, as shown in fig. 7, a supporting portion 63 is further disposed between two chain plate conveying belts 62, the supporting portion 63 includes a mounting groove 632, a set of rollers 631 is rotatably mounted in the mounting groove 632, the tops of the rollers 631 are flush with the conveying surface of the conveying section, and the surfaces of the rollers 631 are coated with teflon paint, so that the self-lubricating property of the material can be utilized, friction is reduced, and resistance in the conveying process is reduced.

Of course, the support part 3 can also be of another construction, for example another link belt or the like. The supporting platform is additionally arranged between the two chain plate conveying lines, on one hand, the conveyed heavy objects are supported, the conveying of the conveying lines is further stabilized, on the other hand, the load of the chain plate conveying belt is effectively reduced, and the possibility of deformation of the chain plate conveying belt is reduced.

As shown in fig. 9, the transmission line 6 includes at least two conveying sections as described above, and the conveying sections are butted end to form the transmission line 6.

When the number of the conveying sections is two, the conveying sections can share one power source, and when the conveying sections are butted, the rotating shafts 622 of the two conveying sections are oppositely arranged, one rotating shaft 622 is connected with the power source, and the other rotating shaft is connected with the rotating shaft connected with the power source through a transmission mechanism formed by a chain and the chain wheel 64.

When the conveying section is more, an adjacent pair may share one power source, but they may be provided with power sources respectively.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims

1. Liftable move and carry device, its characterized in that: including transfer chain (2), transfer chain (2) are connected and are driven its chain elevating system (3) that move between first height and second height, chain elevating system (3) include one first power supply (33) and first power supply (33) are located one side of transfer chain (2), and, chain elevating system (3) to upwards pulling force is applyed to the both sides that transfer chain (2) are relative.

2. Liftable transfer device according to claim 1, characterized in that: the conveying line (2) is arranged on a guide rail (5) on the rack (1) in a sliding mode through a sliding block (4).

3. Liftable transfer device according to claim 1, characterized in that: the conveying line (2) comprises a base frame (21), two rows of first rollers (22) capable of rotating are arranged on two sides of the base frame (21) in equal height and in a clearance mode, grooves (221) are formed in the surfaces of the first rollers (22), belts (23) are sleeved on the two rows of first rollers (22) respectively, and the two rows of first rollers (22) are driven by a second power source (24).

4. Liftable transfer device according to claim 3, characterized in that: the diameter of the second roller (222) in the middle of the first roller (22) is smaller than that of the third rollers (223) at the two ends, and the top of the second roller (222) in the middle is as high as that of the third rollers (223) at the two ends.

5. Liftable transfer device according to claim 4, characterized in that: the second roller (222) at the middle position is a Teflon roller or the periphery of the second roller (222) is coated with Teflon coating.

6. Liftable transfer device according to claim 3, characterized in that: guide plates (26) positioned on the base frame (21) are respectively arranged above the outer sides of the two belts (23), and the two guide plates (26) form a horn-shaped guide opening with a large outer end and a small inner end.

7. Liftable transfer device according to claim 3, characterized in that: one end of each of the two belts (23) is also provided with a baffle (27) which is positioned on the base frame (21) and is higher than the top point of the roller, and a cushion pad (28) is arranged on the inner end surface of the baffle (27).

8. Liftable transfer device according to claim 1, characterized in that: the chain type lifting mechanism (3) comprises at least one supporting shaft (31), the supporting shaft (31) is connected with a first power source (33) for driving the supporting shaft to lift, two first chain wheels (32) are rotatably arranged at two ends of the supporting shaft (31), the two first chain wheels (32) are respectively meshed with a first chain (34), a first end (341) of the first chain (34) is fixed on the rack (1), a second end (342) is fixed on one side of the conveying line (2), and the second end is higher than the first end; chain elevating system (3) still including rotationally set up in at least two second sprocket (35) and two at least third sprocket (36) of transfer chain bottom both sides, every pair second sprocket (35) and third sprocket (36) that the position is relative meshes with a second chain (37), second chain (37) are Z shape extension and third end (371), fourth end (372) and fix respectively on frame (1), and the fixed height of third end (371) is higher than the fixed height of fourth end (372).

9. Liftable transfer device according to claim 8, characterized in that: the first power source (33) is a cylinder or an oil cylinder or an electric cylinder, and the support shaft (31) is connected with the movable parts of the cylinder or the oil cylinder or the electric cylinder.

10. Material conveying system, its characterized in that: comprises at least two transmission lines (6, 7) with height difference, and the same end of the two transmission lines (6, 7) is provided with the lifting transfer device (10) as claimed in any one of claims 1 to 9.