CN215042356U - Material transfer device - Google Patents

Abstract

The utility model discloses a material transfer device relates to transport technical field to it is high to solve traditional transmission line cost of transportation, transports inflexible problem. The material transfer device includes: the conveying device comprises a transfer trolley, a feeding and discharging mechanism, a rotating mechanism and a conveying mechanism for containing a tool car. The feeding and discharging mechanism is used for feeding and discharging the tooling vehicle. The transfer trolley comprises a movable trolley body and a navigation unit arranged on the movable trolley body. The navigation unit, the rotating mechanism and the transmission mechanism are all electrically connected with the movable vehicle body. The feeding and discharging mechanism and the rotating mechanism are arranged on the movable vehicle body, and the transmission mechanism is arranged on the rotating mechanism.

Description

Material transfer device

Technical Field

The utility model relates to a transport technical field especially relates to a material transfer device.

Background

During the production of reels, the reels are usually carried on reels, and the reels loaded with different types of reels are transferred by transfer lines to the respective stations, according to the working procedure.

But in prior art, the transmission line that needs is numerous, and transmission line area is great this moment, and then leads to the cost of transportation high, utilizes the transmission line to carry out the transportation of yarn car simultaneously, still has the poor problem of transportation flexibility.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a material transfer device for reduce the cost of transportation, improve the flexibility of transportation.

In order to realize the purpose, the utility model provides a material transfer device. This material transfer device includes: the conveying device comprises a transfer trolley, a feeding and discharging mechanism, a rotating mechanism and a conveying mechanism for containing a tool car. The feeding and discharging mechanism is used for feeding and discharging the tooling vehicle. The transfer trolley comprises a movable trolley body and a navigation unit arranged on the movable trolley body. The navigation unit, the rotating mechanism and the transmission mechanism are all electrically connected with the movable vehicle body. The feeding and discharging mechanism and the rotating mechanism are arranged on the movable vehicle body, and the transmission mechanism is arranged on the rotating mechanism.

Compared with the prior art, the utility model provides an among the material transfer device, the transfer car (buggy) includes portable automobile body and navigation unit, and rotary mechanism establishes on portable automobile body for the transport mechanism who holds the frock car installs on rotary mechanism. At this time, an external device (such as a transmission line or a robot) can transmit the tool car carrying the materials (such as the material barrel provided with the yarn roll) to the material transfer device through the butt joint with the transmission mechanism. And then the movable vehicle body in the material transfer device is used for transferring the tooling vehicle to the next station. And then, selecting whether to start the rotating mechanism according to the direction of the material loaded on the tooling vehicle so as to rotate the transmission mechanism and the tooling vehicle positioned on the transmission mechanism, so that the loading and unloading mechanism can conveniently carry out loading and unloading operation on the tooling vehicle. Utilize the navigation unit can provide route planning for the motion of material transfer device, make material transfer device safe more, quick through all kinds of transport corridor. Known from above-mentioned material transportation in-process, under the combined action of portable automobile body, navigation unit, last unloading mechanism, rotary mechanism and transmission device, can realize carrying the material fast. Simultaneously because material transfer device utilizes portable automobile body can move between the station of difference, compare in prior art fixed transmission line flexibility stronger. Further, the flexibly-operated material transfer device can replace a plurality of fixedly-arranged transmission lines, so that the working space can be saved, the working environment can be improved, and the transportation cost can be reduced.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural diagram of a material transfer device in a first direction according to an embodiment of the present invention;

fig. 2 is a front view of fig. 1 in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the material transfer device in the second direction according to the embodiment of the present invention;

fig. 4 is a top view of fig. 1 in an embodiment of the present invention;

fig. 5 is a right side view of fig. 1 in an embodiment of the present invention;

fig. 6 is a left side view of fig. 1 in an embodiment of the present invention.

Reference numerals:

the system comprises a transfer trolley 1, a charging port 10, a detection assembly 11, a first navigation radar group 110, a second navigation radar group 111, a steering wheel 12, a mechanical anti-collision strip 13, a feeding and discharging mechanism 2, a mechanical arm 20, a feeding and discharging jig 21, a rotating mechanism 3, a rotating support 30, a first driving motor 31, a tooling trolley 4, a transmission mechanism 5, a guide rod 50, a transmission chain 51 and a full material barrel 6.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 simplification of description, but do not indicate or imply that the device or element 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

During the production of reels, the reels are usually carried on reels, and the reels loaded with different types of reels are transferred by transfer lines to the respective stations, according to the working procedure. But in prior art, the transmission line that needs is numerous, and transmission line area is great this moment, and then leads to the cost of transportation high, utilizes the transmission line to carry out the transportation of yarn car simultaneously, still has the poor problem of transportation flexibility.

In order to solve the technical problem, the embodiment of the utility model provides a material transfer device. Referring to fig. 1, the material transfer device includes: the device comprises a transfer trolley 1, a feeding and discharging mechanism 2, a rotating mechanism 3 and a transmission mechanism 5 for containing a tool carrier 4. The loading and unloading mechanism 2 is used for loading and unloading operation of the tooling vehicle 4. The trolley 1 comprises a movable body (not shown in fig. 1) and a navigation unit (not shown in fig. 1) provided on the movable body. The navigation unit, the rotating mechanism 3 and the transmission mechanism 5 are all electrically connected with the movable vehicle body. The loading and unloading mechanism 2 and the rotating mechanism 3 are arranged on the movable vehicle body, and the transmission mechanism 5 is arranged on the rotating mechanism 3.

Referring to fig. 1, the tool cart 4 can carry a material, which can be a full bucket 6 (with a reel on the bucket) or an empty bucket (with no reel on the bucket). Of course, other materials can be carried on the tooling cart 4. The following description is given by way of example of a full bucket 6, with the understanding that the following description is intended to be illustrative only and not limiting.

With reference to fig. 1 and 2, the aforementioned trolley 1 can also comprise a drive unit (not shown in fig. 1) and a control unit (not shown in fig. 1). The drive unit may comprise at least two steering wheels 12 and at least two universal wheels (not shown in fig. 1 and 2). In the embodiment of the present invention, the bottom of the movable body is provided with two steering wheels 12 and two universal wheels. At the moment, the movable vehicle body can realize omnidirectional walking, in-situ rotation, small-radius turning, advancing, retreating and the like, so that the material transfer device is suitable for various road conditions, and the application range of the material transfer device is wider. Further, the movable vehicle body can flexibly move under the combined action of the driving unit and the navigation unit, so that the material transfer device is suitable for narrow channels and can safely and quickly pass through the narrow channels. The control unit may include an on-board PLC (Programmable Logic Controller), a sensor, and other components. The control unit can carry out information interaction with the navigation unit so as to control the movement of the material transfer device.

Referring to fig. 1, because the orientation of the opening of the full bucket 6 on the tooling cart 4 may be the same as or different from the transmission direction of the loading and unloading mechanism 2, in order to facilitate the loading and unloading operation of the full bucket 6 on the tooling cart 4 by the loading and unloading mechanism 2, the angle between the tooling cart 4 and the loading and unloading mechanism 2 needs to be adjusted, so that the opening of the full bucket 6 is opposite to the loading and unloading mechanism 2. In order to achieve the above object, a rotation mechanism 3 for rotating the transmission mechanism 5 and the tooling cart 4 may be provided on the movable vehicle body. It will be appreciated that the full bucket 6 of the truck 4 may have an opening oriented in the same or different direction as the transfer direction of the transfer mechanism 5, without affecting the subsequent handling of the full bucket 6.

Referring to fig. 1, in the material transfer device provided in the embodiment of the present invention, the transfer vehicle 1 includes a movable vehicle body and a navigation unit, the rotating mechanism 3 is disposed on the movable vehicle body, and the transmission mechanism 5 for holding the tool vehicle 4 is mounted on the rotating mechanism 3. At this time, an external device (e.g., a transmission line or a robot (not shown in fig. 1)) may transfer the tooling cart 4 carrying the material (e.g., full bucket 6) from the external device to the material transfer device by interfacing with the transfer mechanism 5. The tool car 4 is then transported to the next work station by means of the movable car body in the material transfer device. And then whether the rotating mechanism 3 is started or not is selected according to the direction of the materials loaded on the tooling cart 4, so that the transmission mechanism 5 and the tooling cart 4 positioned on the transmission mechanism 5 rotate, and the loading and unloading mechanism 2 can conveniently carry out loading and unloading operation on the tooling cart 4. Utilize the navigation unit can provide route planning for the motion of material transfer device, make material transfer device safe more, quick through all kinds of transport corridor. Known from above-mentioned material transportation in-process, under the combined action of portable automobile body, navigation unit, last unloading mechanism 2, rotary mechanism 3 and transport mechanism 5, can realize carrying the material fast. Simultaneously because material transfer device utilizes portable automobile body can move between the station of difference, compare in prior art fixed transmission line flexibility stronger. The material transfer device capable of further flexibly running can replace a plurality of fixedly arranged transmission lines, so that the working space can be saved, the transportation cost can be reduced, and the working environment can be improved.

As a possible implementation, with reference to fig. 3, the navigation unit may comprise a navigation controller (not shown in fig. 3) and a detection assembly 11 electrically connected to the navigation controller, which is also electrically connected to the movable vehicle body.

For example, referring to fig. 3, in order to better adapt to complex road conditions, a navigation unit is disposed on the movable vehicle body. The navigation unit may include a navigation controller and a detection assembly 11 electrically connected to the navigation controller. The detection assembly 11 may be configured to scan a map of the material handling device ahead of the vehicle in real time and transmit data obtained from the scan to the navigation controller. Then, the navigation controller determines the position of the movable vehicle body based on the data, and controls the drive unit of the movable vehicle body to perform forward, backward, rotational, and the like movements so as to reach the specified position.

In an alternative, referring to fig. 3, the detection assembly 11 may include a first set of navigation radars 110 and a second set of navigation radars 111, the first set of navigation radars 110 being disposed at the head of the transfer vehicle 1 and the second set of navigation radars 111 being disposed at the tail of the transfer vehicle 1.

For example, referring to fig. 3, in order to comprehensively detect the road condition of the position of the material transfer device, the detection assemblies 11 may be disposed at both the head and the tail of the transfer vehicle 1, that is, the first set of navigation radar 110 is disposed at the head of the transfer vehicle 1, and the second set of navigation radar 111 is disposed at the tail of the transfer vehicle 1. Of course, the detection assembly can also be arranged at other locations on the trolley 1. It should be understood that the vehicle head and vehicle tail are relative terms, and in the embodiment of the present invention, the end of the transfer vehicle 1 which is located at the frontmost position during normal running is referred to as the vehicle head of the transfer vehicle 1, and the corresponding end located at the rearmost position is referred to as the vehicle tail of the transfer vehicle 1. The first set of navigation radars 110 and the second set of navigation radars 111 may each be laser navigation radars. The number of each group of navigation radars can be one, two or more, and can also be set according to actual conditions.

As a possible realization, with reference to fig. 3, the above-mentioned trolley 1 can also comprise a collision-prevention unit, which is provided on the movable body and is electrically connected to the movable body.

For example, referring to fig. 3, in order to avoid that the trolley 1 collides with workers or other devices during movement, and the trolley 1, the workers or other devices are damaged, a collision avoidance unit may be provided on the movable vehicle body.

In an alternative, referring to fig. 3, the collision avoidance unit may comprise an obstacle collector (not shown in fig. 3) and an alarm (not shown in fig. 3), the trolley 1 being electrically connected to the obstacle collector and the alarm, respectively. The anti-collision unit can also comprise a mechanical anti-collision strip 13, and the mechanical anti-collision strip 13 is arranged at the head of the transfer trolley 1.

Illustratively, the distance between the transfer trolley and other objects is detected and collected by using the obstacle collector, and the obstacle collector can perform information interaction with a vehicle-mounted PLC in the control unit so as to control the material transfer device to decelerate, brake and stop, thereby avoiding damage to the material transfer device, workers or other objects. Furthermore, the alarm can be an audible and visual alarm, and the obstacle collector can be electrically connected with the audible and visual alarm. In the normal motion process of the material transfer device, the alarm lamp of the audible and visual alarm can only twinkle to remind workers to avoid. Of course, the speaker of the audible and visual alarm can also give out alarm sound to further remind the staff of avoiding. When the barrier collector detects that the distance between the transfer trolley and the barrier (staff or other objects) exceeds the safe distance, the loudspeaker of the audible and visual alarm gives out an alarm to remind the staff or other objects to avoid, and meanwhile, the transfer trolley can also make corresponding avoidance measures to avoid danger. The obstacle collector may be a laser obstacle sensor. The barrier collector can be arranged at the head and the tail of the transfer vehicle or at two places simultaneously.

Referring to fig. 3, the collision avoidance unit may further include a mechanical collision avoidance strip 13, and the mechanical collision avoidance strip 13 is provided at the head of the transfer trolley 1. In the practical application process, if the obstacle collector does not timely detect and collect the distance between the transfer trolley 1 and the obstacle, and the transfer trolley 1 and the obstacle inevitably collide, the mechanical anti-collision strip 13 is arranged at the head of the transfer trolley 1, so that the mechanical anti-collision strip 13 can play a role in buffering, and the damage to the transfer trolley 1 and the obstacle is reduced to the minimum. Of course, the mechanical bumper strip 13 can be arranged not only at the head of the transfer trolley 1, but also at any position of the transfer trolley 1. It should be understood that the vehicle body shell is arranged outside the movable vehicle body, and can be used for protecting a device arranged in the movable vehicle body and avoiding damage to the device or workers.

As a possible implementation, referring to fig. 1 and 4, the above-mentioned rotating mechanism 3 may include a driving unit (not shown in fig. 1 and 4) and a rotating support 30, the driving unit is provided on the movable vehicle body, the driving unit is in power connection with the rotating support 30, and the transmission mechanism 5 is provided on the rotating support 30.

Illustratively, referring to fig. 1 and 4, the driving unit may include a first driving motor 31 and a first driving power source (not shown in fig. 1 and 4). In the practical application process, utilize first drive power supply to provide electric power for first driving motor 31, make first driving motor 31 drive rotate support 30 and rotate to drive transmission device 5 and the frock car 4 that set up on rotating support 30 and rotate, and then make the opening that full storage bucket 6 had just to going up unloading mechanism 2, so that go up unloading mechanism 2 and go up unloading operation to full storage bucket 6 on the frock car 4. Of course, the first driving motor 31 of the rotating mechanism 3 may also be directly electrically connected to the movable vehicle body, and at this time, a power supply arranged in the movable vehicle body may be used to provide power for the first driving motor 31, and the first driving power supply may be arranged on the movable vehicle body as a standby power supply, or the first driving power supply may not be arranged, so as to reduce the weight of the material transfer device.

In one example, the rotating mount may include a carrier, a slew bearing, and a gear. The slewing bearing is arranged on the movable vehicle body and meshed with the gear. The bearing piece is arranged on the slewing bearing, and the transmission mechanism is arranged on the bearing piece. The first driving motor is connected with the gear and used for driving the gear and the slewing bearing to move. The rotating support can realize stable, low-noise and accurate rotation. Of course, the structure of the rotating support is various, and the above description is only for understanding and is not intended to be limiting.

As a possible implementation, referring to fig. 1, the above-mentioned transmission mechanism 5 may be a transmission line. Wherein, the transmission line is a belt transmission line or a roller transmission line.

Illustratively, referring to fig. 1, the vehicle 1 further includes a second driving motor (not shown in fig. 1) and a second driving power source (not shown in fig. 1). In the practical application process, can utilize second drive power supply to provide electric power for second driving motor to make second driving motor drive the transmission line motion, and then when making transmission line and external equipment dock, transport material transfer device with frock car 4 on. The second driving power source may be a power source provided in the movable vehicle body, and the second driving motor is powered by the power source provided in the movable vehicle body. When the power supply in the movable vehicle body is a direct current power supply, the second driving motor is a direct current motor. The above-mentioned transfer mechanism 5 may further comprise a guide bar 50, and the guide bar 50 is disposed at one side of the transfer line, in this case, it is further ensured that the cart 4 moves in the direction of the transfer line.

In one example, referring to fig. 1, the transfer mechanism 5 may include two transfer line bodies (not shown in fig. 1), two transfer chains 51, and four sprockets (not shown in fig. 1). Two transmission line bodies are arranged on the rotating mechanism 3, every two chain wheels are rotatably arranged at two ends of one transmission line body respectively, and the planes of the two chain wheels are axially parallel to the transmission line body. The transmission chain 51 is arranged in the transmission line body and is in transmission connection with chain wheels at two ends of the transmission line body. The second drive motor drives the transmission chain 51 and the sprocket wheel. Of course, the structure of the transmission mechanism 5 is various, and the above description is for understanding only and is not intended to be limiting.

As a possible implementation manner, referring to fig. 1, the loading and unloading mechanism 2 may include a robot arm 20 and a loading and unloading jig 21 disposed on the robot arm 20. The mechanical arm 20 and the feeding and discharging jig 21 are electrically connected with the movable vehicle body.

For example, referring to fig. 1, the robot arm 20 is mounted on a movable vehicle body, and a loading and unloading jig 21 is disposed on the robot arm 20. The mechanical arm 20 and the feeding and discharging jig 21 are electrically connected with the movable vehicle body, and a power supply arranged in the movable vehicle body is used for providing power for the mechanical arm 20 and the feeding and discharging jig 21. Further, the robot arm 20 may be further connected to a control unit, and the control unit may control the robot arm 20 to move, so as to control the feeding and discharging jigs 21 disposed on the robot arm 20 to clamp and carry the full-material barrel 6. The mechanical arm 20 and the feeding and discharging jig 21 are used for carrying materials to replace workers to carry materials, and labor intensity of the workers is reduced. Meanwhile, if the materials are easily damaged due to the fact that the worker carries the materials for a long time and the physical strength is not sufficient or the attention is not concentrated, the mechanical arm 20 and the feeding and discharging jig 21 are used for carrying the materials, the situations cannot occur, the work rate is improved, and the quality of the materials is guaranteed. It should be understood that the specific structures of the robot arm 20 and the loading and unloading jig 21 are not specifically described herein, as long as the full bucket 6 and the empty bucket can be carried.

In an alternative mode, referring to fig. 1, the number of the feeding and discharging mechanisms 2 may be two, and the transmission mechanism 5 is located between the two feeding and discharging mechanisms 2.

For example, referring to fig. 1, in order to improve the loading and unloading efficiency, two loading and unloading mechanisms 2 are arranged on the movable vehicle body. For example, can set up one on the left side of portable automobile body and right side respectively and go up unloading mechanism 2, transport mechanism 5 is located between two unloading mechanism 2, and two unloading mechanism 2 can carry full storage bucket 6 on the frock car 4 simultaneously this moment.

As a possible realisation, the above-mentioned trolley 1 can be a rechargeable trolley, see fig. 3.

For example, with reference to fig. 3, the trolley 1 can be a rechargeable trolley, i.e. a power supply (not shown in fig. 3) and a power control (not shown in fig. 3) can be arranged in the movable trolley body. The power supply can be a lithium battery which can provide 24V/48V/72V direct current power supply. The power supply control part is electrically connected with the control unit, and the power supply control part can determine the electric quantity of the power supply and feed the electric quantity back to the control unit. When the power control part detects that the electric quantity of the power supply exceeds a preset value (for example, the preset value can be 5%, 15% or 18% of the total electric quantity), the power control part feeds the detected value back to the control unit, and the control unit controls the transfer trolley 1 to charge the nearby charging pile until the charging pile is full. It will be appreciated that the head of the trolley 1 is provided with a charging port 10 that matches the equipment at the charging post.

The following describes a specific use of the material transfer device, taking one possible implementation as an example. It is to be understood that the following description is only for purposes of understanding, and is not intended to be limiting.

Referring to fig. 1 to 6, a transmission line in the external device is butted with a transmission mechanism 5 in the material transfer device, and the tooling vehicle 4 carrying the material (for example, a full bucket 6) is transferred from the external device to the transmission mechanism 5. If the opening of the full bucket 6 on the truck 4 is not consistent with the using direction of the loading and unloading jig 21. At this time, the rotating mechanism 3 is started to rotate the transmission mechanism 5 and the tooling cart 4 until the opening of the full charging bucket 6 to be conveyed is opposite to the feeding and discharging jig 21, so that the feeding and discharging jig 21 is aligned to and conveys the full charging bucket 6. The process of transporting the full bucket 6 from the tooling vehicle 4 to the next station by using the loading and unloading jig 21 and the manipulator can be called unloading. After the full material barrel 6 is transported, the empty material barrel can be transported to the tool car 4 under the combined action of the feeding and discharging tool 21 and the manipulator, and the process can be called as feeding. Utilize above-mentioned material transfer device can realize the transport of frock car 4 and the transport of material.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A material transfer device, comprising: the device comprises a transfer trolley, a feeding and discharging mechanism, a rotating mechanism and a transmission mechanism for containing a tool car; the loading and unloading mechanism is used for loading and unloading the tooling vehicle; the transfer trolley comprises a movable trolley body and a navigation unit arranged on the movable trolley body, and the navigation unit, the rotating mechanism and the transmission mechanism are all electrically connected with the movable trolley body;

the feeding and discharging mechanism and the rotating mechanism are arranged on the movable vehicle body, and the transmission mechanism is arranged on the rotating mechanism.

2. The material transfer device of claim 1, wherein the navigation unit includes a navigation controller and a detection assembly electrically connected to the navigation controller, the navigation controller further electrically connected to the movable vehicle body.

3. The material transfer device of claim 2, wherein the detection assembly includes a first set of navigation radars positioned at a nose of the transfer vehicle and a second set of navigation radars positioned at a tail of the transfer vehicle.

4. The material transfer device of claim 1, wherein the transfer car further comprises a collision avoidance unit disposed on the movable car body; the collision avoidance unit is electrically connected with the movable vehicle body.

5. The material transfer device of claim 4, wherein the collision avoidance unit comprises an obstacle collector and an alarm, and the transfer trolley is electrically connected with the obstacle collector and the alarm respectively; the anti-collision unit further comprises a mechanical anti-collision strip, and the mechanical anti-collision strip is arranged at the head of the transfer trolley.

6. The material transfer device of claim 1, wherein the rotating mechanism comprises a drive unit and a rotating support, the drive unit is arranged on the movable vehicle body, the drive unit is in power connection with the rotating support, and the transmission mechanism is arranged on the rotating support.

7. A material transfer device according to any one of claims 1 to 6, wherein the transport mechanism is a transfer line; wherein, the transmission line is a belt transmission line or a roller transmission line.

8. The material transfer device according to any one of claims 1 to 6, wherein the loading and unloading mechanism comprises a mechanical arm and a loading and unloading jig arranged on the mechanical arm; the mechanical arm and the feeding and discharging jig are electrically connected with the movable vehicle body.

9. The material transfer device of claim 8, wherein the number of the loading and unloading mechanisms is two, and the transmission mechanism is located between the two loading and unloading mechanisms.

10. The material transfer device of any one of claims 1 to 6, wherein the transfer vehicle is a plug-in transfer vehicle.

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