CN216710999U - Automatic unloading machine - Google Patents

Abstract

The utility model discloses an automatic car unloader, which comprises a movable support, a mechanical arm, a receiving conveyor, a transition conveyor and a receiving conveyor, wherein: the bottom of the movable support is provided with a moving mechanism which can drive the movable support to move longitudinally along the carriage; the manipulator and the receiving conveyor are arranged on the movable support; the receiving conveyor is positioned on one side of the carriage and extends longitudinally along the carriage; the receiving conveyor is lower than the receiving conveyor, one end of the transition conveyor is connected with the receiving conveyor, and the other end of the transition conveyor extends towards the receiving conveyor in an inclined mode. Through setting up the accepting conveyer in the carriage side, avoided the goods to accepting stopping of conveyer, improved the flexibility of the mode of unloading, can follow carriage upper portion successive layer down and unload, even the goods loading is not standard, through from last successive layer down unloading, also can unload smoothly and can not damage the goods. Meanwhile, the receiving conveyor and the carriage are arranged in parallel, so that the occupied space is greatly reduced, and the applicable scene is enlarged.

Description

Automatic unloading machine

Technical Field

The utility model relates to the technical field of machinery, in particular to an automatic car unloader.

Background

The truck transportation is the most important cargo transportation mode in modern logistics systems, and as trucks are larger and larger, the cargo loading capacity is higher and higher, and how to load and unload cargos quickly becomes a concern for enterprises. The traditional manual unloading mode has low efficiency and large potential safety hazard, and cannot meet the modern production mode.

The Chinese patent with the application number of 201610671022.X and the name of an automatic unloading robot system provides a technical scheme for automatic unloading. As shown in fig. 1, the system includes a gantry type traveling vehicle 10, a robot 20, a roller conveyor 30, a transition conveyor belt 40, a telescopic belt conveyor 50, and the like, wherein the gantry type traveling vehicle 10 spans over a wagon box 001 and moves in the longitudinal direction of the wagon, the robot 20 and the roller conveyor 30 are mounted on the gantry type traveling vehicle 10, the roller conveyor 30, the transition conveyor belt 40, and the telescopic belt conveyor 50 are sequentially connected end to end in the longitudinal direction of the wagon box 001, the robot 20 unloads goods in the wagon box 001 onto the roller conveyor 30, and the goods are sequentially conveyed to a designated position through the roller conveyor 30, the transition conveyor belt 40, and the telescopic belt conveyor 50. Therefore, automatic unloading is realized, time and labor are saved, the unloading speed is improved, and potential safety hazards are reduced.

However, the above automatic unloading robot system has the following drawbacks:

(1) because the gantry type walking vehicle 10 stretches over the carriage 001, and the roller conveyor 30, the transition conveyor belt 40 and the telescopic belt conveyor 50 are sequentially connected end to end along the longitudinal direction of the carriage 001, the unloading system can only unload goods sequentially row by row from the rear part of the carriage 001 and forward and can not unload goods layer by layer from the upper part of the carriage 001, and goods which are not unloaded in the rear row can block the transition conveyor 40 and the telescopic belt conveyor 50 from advancing. And in reality, a lot of cargos are loaded nonstandard, the cargos on the upper layer usually press the cargos on the front row and the rear row of the lower layer, particularly soft bagged objects are mutually extruded together, and the cargos can not be smoothly unloaded or even damaged due to the mode of sequentially unloading from the rear to the front.

(2) Because the unloading system starts to unload from the rear part of the carriage 001, the roller conveyor 30, the transition conveyor belt 40 and the telescopic belt conveyor 50 are sequentially connected end to end, the occupied space is large, and the requirement on the space of an unloading field is high.

(3) The telescopic belt conveyor 50 is expensive, which increases the manufacturing cost.

In conclusion, the existing automatic unloading machine has inflexible unloading mode, can not smoothly unload irregular cargos or even damage the cargos, occupies large space, has higher requirement on the space of an unloading site, and has higher manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an automatic car unloader, which aims to solve the technical problems of the existing automatic car unloader, so that the unloading flexibility is improved, and the occupied space is reduced.

To achieve the above object, the present invention provides an automatic unloader, which comprises a movable support, a manipulator, a receiving conveyor, a transition conveyor and a receiving conveyor, wherein:

the bottom of the movable support is provided with a moving mechanism which can drive the movable support to move longitudinally along the carriage;

the manipulator and the receiving conveyor are arranged on the movable support;

the receiving conveyor is positioned on one side of the carriage and extends along the longitudinal direction of the carriage;

the receiving conveyor is lower than the receiving conveyor, one end of the transition conveyor is connected with the receiving conveyor, and the other end of the transition conveyor extends towards the receiving conveyor in an inclined mode.

Optionally, the mobile carriage spans above the uptake conveyor.

Optionally, the receiving conveyor is arranged across the transition conveyor and the receiving conveyor, and the transition conveyor extends along the conveying direction of the receiving conveyor.

Optionally, the automatic unloader further comprises a lifting mechanism, the lifting mechanism is slidably mounted on the movable support, and the manipulator and the receiving conveyor are mounted on the movable support by being connected with the lifting mechanism.

Optionally, one end of the transition conveyor is movably connected with the lifting mechanism or the receiving conveyor, and the other end of the transition conveyor is connected with the receiving conveyor in a sliding manner.

Optionally, the transition conveyor includes a first transfer portion and a second transfer portion, the first transfer portion is rotatably connected to the lifting mechanism or the receiving conveyor, one end of the second transfer portion is movably connected to the first transfer portion, and the other end of the second transfer portion is slidably connected to the receiving conveyor.

Optionally, the second transfer portion includes a fixed frame and a transfer slide plate obliquely mounted to the fixed frame.

Optionally, the projection of the side surface of the fixed frame is triangular or trapezoidal, and the top of the fixed frame is rotatably connected with the first transfer part.

Optionally, the automatic car unloader further comprises two guide rails, and the movable support is slidably mounted on the guide rails.

Optionally, a material guiding mechanism is arranged at a joint of the receiving conveyor and the transition conveyor.

Optionally, the material guiding mechanism is a side-standing belt conveyor or a roller conveyor.

According to the automatic unloading machine provided by the embodiment of the utility model, the receiving conveyor is arranged on the side surface of the carriage, so that the blocking of goods to the receiving conveyor is avoided, the flexibility of an unloading mode is improved, the goods can be unloaded from the rear part of the carriage sequentially and forwards, the goods can be unloaded layer by layer from the upper part of the carriage, and even if the goods are not loaded in a standard manner, the goods can be unloaded smoothly without damaging the goods by unloading layer by layer from top to bottom. Meanwhile, the receiving conveyor and the carriage are arranged in parallel, so that the occupied space is greatly reduced, and the applicable scene is enlarged. At the same time, the receiving conveyor does not need to adopt an expensive telescopic belt conveyor, thereby reducing the manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of a conventional automatic unloading robot system;

FIG. 2 is a schematic structural diagram of an embodiment of an automatic unloader of the present invention;

FIG. 3 is a schematic structural view of another embodiment of the automatic unloader of the present invention;

fig. 4 is a schematic structural diagram of another embodiment of the automatic unloader of the present invention.

In the drawings:

001-carriage

10-gantry type walking vehicle

20-robot

30-roller conveyor

40-transition conveyer belt

50-telescopic belt conveyor

100-moving support

200-manipulator

300-receiving conveyor

400-transition conveyor

410-first transfer part

420-second transfer part

421-fixed frame

422-transfer sliding plate

500-receiving conveyor

600-guide rail

700-lifting mechanism

800-material guiding mechanism

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The automatic unloader is mainly suitable for unloading bagged materials, and can also unload other types of goods according to actual requirements, and the utility model is not limited to the above.

Referring to fig. 2-4, three embodiments of the automatic unloader of the present invention are presented. The automatic unloader includes a moving frame 100, a manipulator 200, a receiving conveyor 300, a transition conveyor 400, and a receiving conveyor 500.

The movable support 100 is a gantry type support, preferably a trapezoid support with a narrow top and a wide bottom, and a moving mechanism is arranged at the bottom of the gantry type support and can drive the movable support to move back and forth along the longitudinal direction of the carriage. Specifically, moving mechanism drives moving support 100 through the rotation of gyro wheel and moves including setting up in moving support 100's gyro wheel, as preferred, and moving mechanism still includes support driving motor, rotates through support driving motor drive gyro wheel, and then drives moving support 100 and automatic back and forth movement, need not artifical the promotion.

The robot 200 is mounted to the moving rack 100. Specifically, it includes a hand, an arm, and a fixing portion connected in this order, and the fixing portion is mounted to the movable bracket 100. The manipulator 200 can grab the goods by the hand gripper, or grab the goods by the suction device (such as a vacuum chuck) of the hand, and the gripper is preferred for bagged materials. The hand and the arm of the robot arm 200 may move longitudinally and laterally or rotate, and the goods in the car 001 are caught by the hand and placed on the receiving conveyor 300.

The robot 200 may be a fully automated robot or a semi-automated robot. Full-automatic manipulator can automatic positioning, snatch the goods, place the goods automatically, and full automation need not manual intervention, and this kind of manipulator 200 need dispose the sensor that can accurate location, and the cost is higher. The semi-automatic manipulator needs manual auxiliary positioning, can omit the positioning sensor, and the cost is lower.

The number of the manipulators 200 may be set as required, and may be one or at least two. The construction of the manipulator can be implemented in many ways, as shown in fig. 2-4, which are three different implementations. The manipulator is a mechanism commonly used in the existing automation equipment, and the utility model is not described in detail herein.

The receiving conveyor 300 is installed on the moving frame 100, and may be horizontally disposed or may be obliquely disposed at a certain angle. The receiving conveyor 300 may be a belt conveyor or a roller conveyor, and when inclined at a large inclination angle, the receiving conveyor 300 may be an unpowered roller conveyor or simply a skid.

The uptake conveyor 500 is located on the side of the car 001 and extends in the longitudinal direction of the car 001, in other words, the uptake conveyor 500 is arranged in parallel with the car 001. The receiving conveyor 500 is lower than the receiving conveyor 300 and is used for conveying the goods transferred by the receiving conveyor 300 and the transition conveyor 400 to a designated position. In an embodiment of the present invention, the uptake conveyor 500 may be a belt conveyor, a roller conveyor, or the like. Of course, in practical applications, the receiving conveyor may also be a retractable belt conveyor, which is not limited by the present invention. In the embodiment of the present invention, the receiving conveyor 500 and the moving rack 100 are located on the same side of the car 001, and in other embodiments, the receiving conveyor 500 and the moving rack may be separately located on two sides of the car 001.

The transition conveyor 400 has one end connected to the receiving conveyor 300 and the other end extending obliquely toward the receiving conveyor 500. In the embodiment of the present invention, the transition conveyor 400 is slidably connected to the uptake conveyor 500. In other embodiments, the transition conveyor 400 may also be suspended above the uptake conveyor 500, which is not limited by the present invention.

In the embodiment of the utility model, the receiving conveyor 500 is positioned on the side surface of the carriage 001, so that the situation that goods block the receiving conveyor 500 is avoided, the unloading mode is flexible, the goods can be unloaded sequentially from the rear part of the carriage 001 row by row and forwards, and the goods can be unloaded from the upper part of the carriage 001 layer by layer and downwards, specifically: the movable support 100 unloads the first layer of goods from the rear part of the carriage 001 forwards, unloads the second layer of goods from the front part of the carriage 001 backwards, and the above steps are repeated in a circulating mode, the current uppermost layer of goods is unloaded each time, and finally all goods are unloaded. Therefore, even if the loading of the goods is not standard, the goods can be smoothly unloaded without damaging the goods by unloading the goods layer by layer from top to bottom. Meanwhile, as the receiving conveyor 500 and the carriage 001 are arranged in parallel, the occupied space is greatly reduced.

Further, in the embodiment of the present invention, the movable rack 100 spans over the receiving conveyor 500, which is equivalent to "overlapping" the movable rack 100 and the receiving conveyor 500, further reducing the occupied space. In other embodiments, the mobile carriage 100 may span above the car 001, or may be arranged side-by-side with the uptake conveyor 500 on the same side of the car 001.

Furthermore, in the embodiment of the present invention, the receiving conveyor 300 spans over the car 001 and intersects with the transition conveyor 400 and the receiving conveyor 500, and the transition conveyor 400 is located right above the receiving conveyor and extends downward in the transportation direction of the receiving conveyor 500. In the embodiment of the present invention, the receiving conveyor 300 is vertically disposed with respect to the transition conveyor 400 and the receiving conveyor 500, respectively, and the vertical is understood to be substantially vertical, and the included angle is about ninety degrees. By extending the transition conveyor 400 in the transport direction of the uptake conveyor 500, the goods are more stable when transferred from the transition conveyor 400 to the uptake conveyor 500, improving stability.

In some embodiments, the receiving conveyor 300 is connected end-to-end with the transition conveyor 400 and is disposed across the receiving conveyor 500, and one end of the transition conveyor 400 is fixedly connected with the receiving conveyor 300, and the other end extends obliquely toward the receiving conveyor 500 and is suspended above the receiving conveyor 500 or slidably connected with the receiving conveyor 500. At this time, in order to prevent the goods from rushing out of the receiving conveyor 500, it is preferable to provide a baffle on the side of the receiving conveyor 500; a baffle may also be provided on the mobile carriage 100 when it is straddling over the uptake conveyor 500.

Furthermore, the automatic unloading machine of the embodiment of the utility model further comprises two guide rails 600, and the moving bracket 100 is slidably mounted on the guide rails 600. As shown in fig. 2-4, in the embodiment of the present invention, two guide rails 600 are located on the same side of the carriage 001 and extend along the longitudinal direction of the carriage 001, and are respectively disposed on both sides of the receiving conveyor 500, in this case, the moving mechanism disposed on the moving rack 100 may include rollers or sliders disposed on the bottoms of both sides of the moving rack 100, and the rollers or sliders are slidably mounted on the guide rails 600, so that the moving rack 100 can move smoothly on the guide rails 600. In the embodiment of the present invention, the two guide rails 600 are laid on the ground in a ground rail manner. In some embodiments, the guide rails 600 may also be coupled to the legs of the uptake conveyor 500.

Through setting up guide rail 600 for it is more steady when moving movable support 100 removes, and has reduced the requirement to the place planarization of unloading, is favorable to expanding and is suitable for the scene.

In some embodiments, two rails 600 and uptake conveyor 500 may be juxtaposed and located on the same side of car 001. In other embodiments, the two guide rails 600 may be disposed on two sides of the car 001, and the moving rack 100 spans over the car 001.

Further, the automatic unloader according to the embodiment of the present invention further includes an elevating mechanism 700, wherein the elevating mechanism 700 is slidably mounted on the movable frame 100 and can vertically reciprocate on the movable frame 100, and the robot 200 and the receiving conveyor 300 are mounted on the movable frame 100 by being connected to the elevating mechanism 700 and move up and down along with the elevating mechanism 700. It should be understood that the robot 200 and the receiving conveyor 300 may be directly connected to the lifting mechanism 700, or may be indirectly connected to the lifting mechanism 700, for example: the receiving conveyor 300 is directly connected to the elevating mechanism 700, and the robot 200 is indirectly connected to the elevating mechanism 700 by being connected to the frame of the receiving conveyor 300.

Specifically, the lifting mechanism 700 includes a lifting driving device (such as a motor, a cylinder, etc.) and a lifting frame, the lifting frame can be movably connected with the movable support 100 through a sliding rail structure, the lifting driving device drives the lifting frame to move up and down along the movable support 100, and the manipulator 200 and the receiving conveyor 300 are installed on the movable support 100 through being connected with the lifting frame.

By arranging the lifting mechanism 700, the manipulator 200 and the receiving conveyor 300 move up and down along with the lifting mechanism 700, so that the stroke of up-and-down movement of the manipulator 200 is greatly reduced, and the stroke of goods taking and placing of the manipulator 200 is also reduced due to synchronous movement of the manipulator 200 and the receiving conveyor 300, thereby improving the unloading efficiency.

Furthermore, in the embodiment of the present invention, one end of the transition conveyor 400 is movably connected to the lifting mechanism 700 or the receiving conveyor 300, and the other end is slidably connected to the receiving conveyor 500. Transition conveyer 400 can rotate connection or sliding connection through pivot, hinge etc. and elevating system 700 or material receiving conveyer 300 through rotating connection structure or spout structure, is connected with accepting conveyer 500 through slide rail structure to when elevating system 700 up-and-down motion, transition conveyer 400's both ends remain with accepting conveyer 300 and accepting conveyer 500 and link up all the time, transfer the goods from accepting conveyer 300 to accepting conveyer 500 smoothly on. In some embodiments, the transition conveyor 400 may also be fixedly attached to the mobile carriage 100 without moving up and down with the lift mechanism 700.

Furthermore, in the embodiment of the present invention, the transition conveyor 400 includes a first transfer portion 410 and a second transfer portion 420, the first transfer portion 410 is rotatably connected to the lifting mechanism 700 or the receiving conveyor 300, one end of the second transfer portion 420 is movably connected to the first transfer portion 410, and the other end is slidably connected to the receiving conveyor 500.

The first transfer part 410 may be a belt conveyor, a roller conveyor, or other conveying mechanisms, and when the first transfer part 410 is a roller conveyor, it may be an unpowered roller conveyor, and the goods may freely slide down from the inclined roller conveyor only by its own gravity and rotation of the rollers. The first transfer unit 410 may be a slide plate, and the goods may freely slide down from the inclined slide plate only by its own weight. The first transfer portion 410 may be rotatably or slidably connected to the lifting mechanism 700 or the receiving conveyor 300 by a rotary connection structure such as a rotary shaft or a hinge, or a slide groove structure.

In the embodiment of the present invention, the second transferring portion 420 includes a fixing frame 421 and a transferring sliding plate 422 obliquely installed on the fixing frame 421, an upper end of the fixing frame 421 is movably connected to the first transferring portion 410, and a lower end of the fixing frame 421 is slidably connected to the receiving conveyor 500 through a sliding rail structure. Preferably, can set up the spout on transferring the slide 422, can prevent goods from the sideslip on the one hand, on the other hand can make the length direction along the direction of transportation when the goods slided, improves the stationarity of freight. In some embodiments, the conveyor may be mounted on the fixed frame 421.

As shown in fig. 2 and 3, the side projection of the fixing frame 421 is trapezoidal, and the top of the fixing frame 421 is rotatably connected to the first transfer portion 410 through a rotating shaft structure; slide rails are arranged on two sides of the receiving conveyor 500, and a slide block capable of sliding in the slide rails is arranged at the bottom of the fixing frame 421. In some embodiments, the side projection of the fixing frame 421 is triangular, and the top of the fixing frame 421 may also be rotatably connected to the first transfer portion 410 by another rotating connection structure such as a hinge.

As shown in fig. 4, the fixing frame 421 includes four longitudinal brackets and at least two transverse brackets connected to the longitudinal brackets. A groove is formed at the inner side of the upper ends of the two longitudinal supports at one side of the fixing frame 421 close to the first transfer part 410, and one end of the first transfer part 410 is inserted into the groove and can slide in the groove; slide rails are arranged on two sides of the receiving conveyor 500, and a slide block capable of sliding in the slide rails is arranged at the bottom of the longitudinal support of the fixing frame 421.

If the fixed frame 421 is high, the receiving conveyor 300 may be lower than the fixed frame 421 when it is lowered to the lowest position by the lifting mechanism 700, and at this time, the first transfer portion 410 must be a powered conveying mechanism such as a belt conveyor or a roller conveyor to convey the goods obliquely upward to the second transfer portion 420.

Through setting up transition conveyor 400 as swing joint's first transfer portion 410 and second transfer portion 420, reduced the slip stroke of transition conveyor 400 on accepting conveyor 400 greatly, help shortening transition conveyor 400 and accepting the length of conveyor 500, reduce material cost.

In some embodiments, the transition conveyor 400 may also include only the first transfer portion 410, and the first transfer portion 410 is a sliding plate or a conveyor, one end of which is connected to the lifting mechanism 700 or the receiving conveyor 300 through a rotating connection structure such as a rotating shaft or a hinge, and the other end of which is connected to the receiving conveyor 500 through a sliding rail structure.

Furthermore, in the embodiment of the present invention, a material guiding mechanism 800 is disposed at a junction of the receiving conveyor 300 and the transition conveyor 400. The material guiding mechanism 800 may be connected to the moving rack 100 or to the receiving conveyor 300. In the embodiment of the present invention, the material guiding mechanism 800 is a side-standing belt conveyor, which is connected to the receiving conveyor 400 diagonally and transversely, and is connected to the frames at both sides of the receiving conveyor 400 to guide the goods to the transition conveyor 400. Thereby improving the stability and the conveying efficiency of goods conveying.

In some embodiments, the material guide mechanism 800 is a side-standing roller conveyor, which may be a powered roller conveyor or an unpowered roller conveyor. In still other embodiments, the material guide mechanism 800 is a side-standing slide.

In other embodiments, the receiving conveyor 300 is a bending conveyor, and is naturally bent at the joint with the transition conveyor 400 and then connected with the transition conveyor 400 end to end, so that the material guide mechanism 800 is not needed.

When the robot 300 shown in fig. 3 is used as the automatic unloading machine, since the arm of the robot 200 can rotate freely, the receiving conveyor 300 can also be disposed on one side of the carriage 001, disposed substantially parallel to the carriage 001, and connected end to end with the transition conveyor 400, and at this time, the receiving conveyor 300 and the transition conveyor 400 are both located right above the receiving conveyor 500 and extend along the transport direction of the receiving conveyor 500. In some embodiments, the uptake conveyor 500 is a telescopic belt conveyor, where the receiving conveyor 300, the transition conveyor 400, and the uptake conveyor 500 are connected end-to-end in sequence.

According to the automatic unloader provided by the embodiment of the utility model, the movable support 100 and the receiving conveyor 500 are arranged on the side surface of the carriage 001, so that the blocking of the receiving conveyor 500 by goods is avoided, the flexibility of an unloading mode is improved, the unloading can be sequentially carried out from the rear part of the carriage 001 one by one, the unloading can be carried out from the upper part of the carriage 001 layer by layer, and even if the loading of the goods is not standard, the unloading can be smoothly carried out from top to bottom layer by layer without damaging the goods. Meanwhile, as the receiving conveyor 500 and the carriage 001 are arranged in parallel, the occupied space is greatly reduced, and the applicable scene is enlarged. In this case, the receiving conveyor 500 does not need to use an expensive retractable belt conveyor, and the manufacturing cost is reduced.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and are not to be construed as limiting the scope of the utility model. Those skilled in the art can implement the utility model in various modifications, such as features from one embodiment can be used in another embodiment to yield yet a further embodiment, without departing from the scope and spirit of the utility model. Any modifications, equivalents and improvements which may occur to those skilled in the art without departing from the scope and spirit of the present invention are intended to be within the scope of the claims. All the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings of the utility model, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides an automatic unloader which characterized in that, including removing support, manipulator, material receiving conveyer, transition conveyer and accepting the conveyer, wherein:

the bottom of the movable support is provided with a moving mechanism which can drive the movable support to move longitudinally along the carriage;

the manipulator and the receiving conveyor are arranged on the movable support;

the receiving conveyor is positioned at one side of the carriage and extends along the longitudinal direction of the carriage;

the receiving conveyor is lower than the receiving conveyor, one end of the transition conveyor is connected with the receiving conveyor, and the other end of the transition conveyor extends towards the receiving conveyor in an inclined mode.

2. The automatic car unloader as recited in claim 1, wherein the moving rack spans over the uptake conveyor.

3. The automatic unloader as recited in claim 2, wherein the receiving conveyor is disposed across the transition conveyor and the uptake conveyor, the transition conveyor extending in a transport direction of the uptake conveyor.

4. The automatic unloader as recited in claim 3, further comprising a lift mechanism slidably mounted to the movable support, wherein the manipulator and the receiving conveyor are mounted to the movable support by connecting the lift mechanism.

5. The automatic unloader as claimed in claim 4, wherein one end of the transition conveyor is movably connected to the lifting mechanism or the receiving conveyor, and the other end is slidably connected to the receiving conveyor.

6. The automatic car unloader according to claim 5, wherein the transition conveyor comprises a first transfer portion and a second transfer portion, the first transfer portion is rotatably connected with the lifting mechanism or the receiving conveyor, one end of the second transfer portion is movably connected with the first transfer portion, and the other end of the second transfer portion is slidably connected with the receiving conveyor.

7. The automatic unloader of claim 6, wherein the second transfer portion includes a fixed frame and a transfer slide plate installed to be inclined to the fixed frame.

8. The automatic unloader as recited in any one of claims 1 to 7, further comprising two guide rails, wherein the moving bracket is slidably mounted on the guide rails.

9. The automatic unloader as claimed in any one of claims 3 to 7, wherein a material guide mechanism is provided at a junction of the receiving conveyor and the transition conveyor.

10. The automatic unloader of claim 9, wherein the material guide mechanism is a side-standing belt conveyor or a roller conveyor.

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