Material conveying device

Abstract

The utility model belongs to the field of material conveying, and relates to a material conveying device which comprises a fixing frame, a carrier, at least two driving parts, at least two bearing parts and a controller. The carrier is movably connected with the fixing frame, and the carrier can move in the first direction; all the driving parts are arranged on the fixing frame, and all the driving parts are connected with the corresponding bearing parts so as to drive the corresponding bearing parts to move in the first direction; each bearing piece can be expanded or contracted so as to be matched with or unmatched with different positions of the carrier in the first direction in turn when the bearing piece moves in the first direction, so that the carrier is borne or unborne; and the controller is in communication connection with all the driving parts and all the bearing parts. The at least two driving parts can be alternately in the load state, so that the situation that a single power source is heated and hot due to long-time load can be effectively avoided, and the driving device is suitable for the flammable and explosive working environment.

Description

Technical Field

[0001] The present application relates to the technical field of material conveying, and more specifically, to a material conveying device. Background Art

[0002] At present, in machining, in order to facilitate the transportation of materials such as trays, a material conveying device is provided. The material conveying device usually uses a motor as a single power source to drive the tray to reciprocate along a preset path to convey the material.

[0003] The defects of the above-mentioned prior art are: because the power source of the material conveying device is single, the single power source is prone to heat up when loaded for a long time, which is not suitable for flammable and explosive working environments, so it is urgently needed to be improved. Utility Model Content

[0004] Based on this, it is necessary to provide a material conveying device to address the above problems, aiming to effectively avoid the heating of a single power source due to long-term load, so as to be suitable for flammable and explosive working environments.

[0005] The embodiments of the present application achieve the above-mentioned purpose through the following technical solutions.

[0006] The present application provides a material conveying device, which comprises: a fixed frame, a loading frame, at least two driving members, at least two supporting members and a controller;

[0007] The object carrier is movably connected to the fixed frame, and the object carrier can move along a first direction;

[0008] Each of the driving members is disposed on the fixing frame, and each of the driving members is connected to the corresponding supporting member to drive the corresponding supporting member to move along the first direction;

[0009] Each of the supporting members can be expanded or contracted, so as to be matched or released with different positions of the object carrier in the first direction in turn when the supporting members move along the first direction, so as to support or release the object carrier;

[0010] A controller is communicatively connected with each of the driving members and each of the supporting members.

[0011] In one embodiment, each of the supporting members includes a driving part and two supporting parts connected to the driving part, each of the driving parts is installed on the corresponding driving member, and each of the driving parts can drive the corresponding two supporting parts to move away from each other or towards each other to expand or contract; each of the driving parts is communicatively connected to the controller.

[0012] In one embodiment, each of the driving parts is a parallel clamping cylinder, and both driving ends of each of the parallel clamping cylinders are respectively connected to the corresponding two supporting parts to drive the two supporting parts to move in opposite directions or towards each other.

[0013] In one embodiment, the cargo carrier is provided with at least two plug-in groups arranged in parallel, each of the plug-in groups comprises a plurality of plug-in layers arranged at intervals along a first direction, and each of the plug-in layers comprises two plug-in slots arranged opposite to each other;

[0014] The two supporting parts corresponding to each supporting member can selectively cooperate with or release cooperation with the two plug-in slots of any plug-in layer of the corresponding plug-in group when the two supporting parts move along the first direction.

[0015] In one embodiment, the width of the insertion slot is gradually reduced from the slot opening to the slot bottom.

[0016] In one of the embodiments, the two plug-in slots corresponding to any plug-in layer of any plug-in group are both arranged through a side facing away from the other plug-in group to form a clearance opening.

[0017] In one of the embodiments, the object carrier is provided with a containing space, each of the driving members and the supporting member is located in the containing space, and all of the plug-in slots are provided on two surfaces of the containing space that are opposite to each other.

[0018] In one embodiment, the cargo rack includes a cargo carrying portion and two supporting portions, wherein the two supporting portions are installed at an interval on the same side of the cargo carrying portion so that the two supporting portions and the cargo carrying portion surround and form the accommodating space; each of the supporting portions is movably connected to the fixing frame, and each of the supporting portions can move along a first direction; and all of the plug-in slots are disposed on surfaces of the two supporting portions that are close to each other.

[0019] In one embodiment, the fixing frame is U-shaped and includes two fixing parts arranged in parallel and a base connecting the two fixing parts. Each of the driving members is arranged on the base and located between the two fixing parts. The loading rack is movably connected to the fixing parts.

[0020] In one embodiment, the base is provided with a mounting seat located between the two fixing portions, one driving member is provided on the base, and the other driving member is provided on a surface of the mounting seat away from the base.

[0021] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0022] The present application can control the at least two supporting members to alternately support the load carrier through the setting of at least two driving members, at least two supporting members, and the controller, and can cooperate with the at least two driving members to drive the corresponding supporting members to move along the first direction through the controller, so that the at least two driving members and at least two supporting members can alternately drive the load carrier to move along the first direction. Such a setting enables the at least two driving members to alternately be in a load state, thereby effectively avoiding the situation where a single power source becomes hot due to long-term load, so as to be suitable for flammable and explosive working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a material conveying device in the present application;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure when the middle loading rack is rising;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle supporting member;

[0027] Figure 4 yes Figure 1 A schematic diagram of the structure of the middle support part and the supporting member;

[0028] Figure 5 yes Figure 2 Schematic diagram of the structure of the middle base, driving member and supporting member.

[0029] Figure numerals: 1000, material conveying device; 100, fixing frame; 110, fixing part; 120, base; 121, mounting seat; 122, base; 200, loading rack; 200', plug-in slot; 200", clearance opening; 210, loading part; 220, supporting part; 300, driving member; 400, supporting member; 410, driving part; 420, supporting part. DETAILED DESCRIPTION

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] The present application proposes a material conveying device, which relies on the settings of at least two driving parts, at least two supporting parts and a controller, so that the material conveying device can convey materials by alternately loading at least two driving parts, thereby effectively avoiding the situation where a single power source generates heat due to long-term load, and is suitable for flammable and explosive working environments.

[0034] See also Figure 1 and Figure 2 The embodiment of the present application provides a material conveying device 1000, which includes: a fixed frame 100, a loading frame 200, at least two driving members 300, at least two supporting members 400 and a controller (not shown).

[0035] The fixed frame 100 provides an installation position for other components such as the carrier 200 and the driving member 300. The carrier 200 is used to carry materials to be transported, such as a material tray, etc. There are many ways to form the fixed frame 100 and the carrier 200. They can be formed by plate-like structural members, they can also be assembled from multiple rod-like structural members, and they can also be assembled from plate-like structural members and rod-like structural members, which are not specifically limited here.

[0036] The carrier 200 is movably connected to the fixed frame 100, and the carrier 200 can move along the first direction. In this embodiment, the movable connection between the carrier 200 and the fixed frame 100 is a sliding connection realized by a slider and a slide rail structure, so that the carrier 200 can move conveniently along the first direction. In other embodiments, the movable connection between the carrier 200 and the fixed frame 100 can also be a rolling connection realized by a ball structure.

[0037] Each driving member 300 is disposed on the fixing frame 100, and each driving member 300 is connected to the corresponding supporting member 400 to drive the corresponding supporting member 400 to move along the first direction. The connection method between each driving member 300 and the fixing frame 100 and the connection method between each driving member 300 and the corresponding supporting member 400 can be a fixed connection method such as welding and bonding, or a detachable connection method such as a threaded connection, a snap connection, a magnetic connection, a mortise and tenon connection, which is not specifically limited here.

[0038] In this embodiment, each driving member 300 is configured as a cylinder. In this configuration, because the cylinder uses compressed gas as the source power, it can avoid arcs and sparks when the driving member 300 is frequently opened and closed, which meets the requirements of heat insulation and explosion prevention, and further improves the safety performance of the material conveying device 1000 in an inflammable and explosive working environment. In other embodiments, each driving member 300 can also be configured as other linear driving elements such as an oil cylinder and an electric push rod.

[0039] In addition, in this embodiment, the number of the driving members 300 is the same as the number of the supporting members 400, and both the number of the driving members 300 and the number of the supporting members 400 are set to two. This configuration can simplify the structure of the material conveying device 1000 to the greatest extent while avoiding the situation where a single power source heats up due to long-term load. In other embodiments, the number of the driving members 300 and the supporting members 400 can also be set to other values ​​such as three, four, five, six, etc.

[0040] Each supporting member 400 can be expanded or contracted to alternately cooperate with or release cooperation with different positions of the object carrier 200 in the first direction when the supporting member 400 moves along the first direction, so as to support or release the object carrier 200 .

[0041] It should be noted that the first direction can be vertical, horizontal or longitudinal. Obviously, in actual application, the first direction can be switched to any one of vertical, horizontal and longitudinal by adjusting the placement orientation of the fixing frame 100 and the object carrier 200. In this embodiment, the first direction is explained as vertical. Specifically, all the driving members 300 are arranged at intervals along the longitudinal direction, and the driving ends of all the driving members 300 are arranged vertically upward.

[0042] The controller is in communication connection with each driving member 300 and each supporting member 400. The controller may be a single chip microcomputer, a PWM controller, a microcontroller, or other control device capable of receiving and sending signals, and the type of the controller is not specifically limited herein. The communication connection may be through wireless communication such as Bluetooth connection, WIFI connection, or may be directly connected through a wire, and the communication connection method is not specifically limited herein.

[0043] Through the above technical solution, the controller is used to control the two supporting members 400 to alternately support the load carrier 200, and the controller is used to control the two driving members 300 to drive the corresponding supporting members 400 to move vertically, so that the two driving members 300 and the two supporting members 400 can alternately drive the load carrier 200 to move vertically. In this way, at least the two driving members 300 can be alternately in a load state, and thus the heating of a single power source due to long-term load can be effectively avoided, so as to be suitable for inflammable and explosive working environments.

[0044] In order to facilitate the introduction of the specific process of the coordinated action of the two driving members 300 and the two supporting members 400 below, the two driving members 300 are divided into a first driving member and a second driving member, and the two supporting members 400 are divided into a first supporting member and a second supporting member. The first driving member drives the first supporting member to rise and fall, and the second driving member drives the second supporting member to rise and fall.

[0045] When loading materials through the material conveying device 1000, the specific working process is as follows: Step 1, first control the first supporting member to extend through the controller, so that the first supporting member supports the object carrier 200; then control the second supporting member to retract through the controller, so that the second supporting member releases the support for the object carrier 200; Step 2, control the first driving member to drive the first supporting member to rise through the controller, so that the first supporting member drives the object carrier 200 to rise a first distance; at the same time, control the second driving member to drive the second supporting member to descend to a preset position through the controller; Step 3, first control the second supporting member to extend through the controller, so that the second supporting member supports the object carrier 200; then control the first supporting member to retract through the controller, so that the first supporting member releases the support for the object carrier 200; Step 4: control the second driving member to drive the second supporting member to rise through the controller, so that the second supporting member drives the object carrier 200 to rise a second distance; at the same time, control the first driving member to drive the first supporting member to descend to a preset position through the controller. This process is repeated from step 1 to step 4 until the material conveying device 1000 completes loading the materials layer by layer.

[0046] Similarly, when unloading materials through the material conveying device 1000, the specific working process is as follows: Step 1, first control the first supporting member to extend through the controller so that the first supporting member supports the object carrier 200; then control the second supporting member to retract through the controller so that the second supporting member releases the support for the object carrier 200; Step 2, control the first driving member to drive the first supporting member to descend through the controller so that the first supporting member drives the object carrier 200 to descend a first distance; at the same time, control the second driving member to drive the second supporting member to rise to a preset position through the controller; Step 3, first control the second supporting member to extend through the controller so that the second supporting member supports the object carrier 200; then control the first supporting member to retract through the controller so that the first supporting member releases the support for the object carrier 200; Step 4: control the second driving member to drive the second supporting member to descend through the controller so that the second supporting member drives the object carrier 200 to descend a second distance; at the same time, control the first driving member to drive the first supporting member to rise to a preset position through the controller. This process is repeated from step 1 to step 4 until the material conveying device 1000 completes unloading the materials layer by layer.

[0047] Among them, when the material to be transported is a tray, the stroke of the driving member 300 each time is set according to the thickness of the tray to ensure that the driving member 300 drives the corresponding supporting member 400 to rise or fall by a distance equal to the height of a tray each time, which is conducive to step-by-step loading and unloading. In addition, the material conveying device 1000 is used in conjunction with the material taking device. Because the material conveying device 1000 loads and unloads materials in a lifting manner, the material taking device does not need to lift and lower, which can save hardware costs and simplify the design of the material taking program, and is highly practical.

[0048] See also Figure 2 and Figure 3 There are many ways to extend and contract the above-mentioned supporting members 400. In one embodiment of the present application, each supporting member 400 includes a driving part 410 and two supporting parts 420 connected to the driving part 410. Each driving part 410 is installed on the corresponding driving member 300, and each driving part 410 can drive the corresponding two supporting parts 420 to move away from each other or towards each other to expand or contract, so that the two supporting parts 420 corresponding to each supporting member 400 can selectively cooperate or release cooperation with the carrier 200 at different positions in the first direction when it moves along the first direction; each driving part 410 is communicatively connected to the controller, and the specific method of the communication connection is set with reference to the specific method of the communication connection mentioned above, which will not be repeated here.

[0049] The connection mode between the driving part 410 and the driving member 300 and the connection mode between the driving part 410 and the supporting part 420 are set with reference to the above-mentioned fixed connection or detachable connection mode, and are not specifically limited here.

[0050] Through the above-mentioned technical solution, when it is necessary to control the extension of the supporting member 400, the controller controls the driving part 410 to drive the two supporting parts 420 to move in directions away from each other, thereby realizing the extension of the supporting member 400; when it is necessary to control the contraction of the supporting member 400, the controller controls the driving part 410 to drive the two supporting parts 420 to move in directions close to each other, thereby realizing the contraction of the supporting member 400.

[0051] In other embodiments, each supporting member 400 may also include two telescopic parts and two supporting parts, the driving ends of the two telescopic parts face opposite directions, and the driving ends of the two telescopic parts are respectively connected to the two supporting parts. In this way, the supporting member 400 can be expanded or contracted by the synchronous extension or contraction of the two telescopic parts. The telescopic part can be a telescopic structure such as a cylinder, an oil cylinder, or an electric push rod.

[0052] See also Figure 2 and Figure 3 There are many types of the above-mentioned driving parts 410. In one embodiment of the present application, each driving part 410 is a parallel clamping cylinder, and the two driving ends of each parallel clamping cylinder are respectively connected to the corresponding two supporting parts 420 to drive the two supporting parts 420 to move in opposite directions or towards each other. This arrangement facilitates the driving part 410 to drive the two supporting parts 420 to move in the direction of approaching or moving away from each other.

[0053] The parallel clamp cylinder is a clamping device driven by air pressure, usually composed of a cylinder, a piston and a clamping claw, etc. Its working principle is to fill the cylinder with compressed air to push the piston to move, so that the two driving ends move towards or away from each other to clamp or loosen the object.

[0054] In other embodiments, each driving part 410 can also be configured as a thumb cylinder, and the two driving ends of the thumb cylinder are respectively connected to the corresponding two supporting parts 420. The thumb cylinder is a special pneumatic actuator, and its structure and working principle are similar to those of a human thumb. It is usually composed of a cylinder body, a piston rod, a connecting rod, and fingers. The piston rod is pushed to move by filling compressed air into the cylinder, so that the fingers can clamp or release the object.

[0055] See also Figure 2 and Figure 4There are many ways that the two supporting parts 420 of each supporting member 400 can selectively cooperate or release cooperation with different positions of the material carrier 200 in the first direction when the two supporting parts 420 move along the first direction. In one embodiment of the present application, the material carrier 200 is provided with at least two plug-in groups (not marked) arranged in parallel, each plug-in group includes a plurality of plug-in layers (not marked) arranged at intervals along the first direction, and each plug-in layer includes two plug-in slots 200' arranged oppositely; the two supporting parts 420 corresponding to each supporting member 400 can selectively cooperate or release cooperation with the two plug-in slots 200' of any plug-in layer of the corresponding plug-in group when the two supporting parts 420 move along the first direction. Such arrangement enables the supporting parts 420 to cooperate or release cooperation with different positions of the material carrier 200 in the first direction in a plug-in manner, so as to facilitate the cooperation or release cooperation between the supporting parts 420 and the material carrier 200.

[0056] The number of the plug-in layers is two or more, and the number of the plug-in layers is not specifically limited herein. In other embodiments, the load carrier 200 may also be provided with two parallel force-bearing member groups, each force-bearing member group includes a plurality of force-bearing member layers arranged vertically at intervals, each force-bearing member layer includes two force-bearing members arranged oppositely, and the two supporting parts 420 corresponding to each supporting member 400 can selectively support or release the two force-bearing members of any force-bearing layer of the corresponding force-bearing group when the two supporting parts 420 are moved vertically.

[0057] In this embodiment, the number of the plug-in groups is the same as the number of the supporting members 400, and both the number of the plug-in groups and the number of the supporting members are set to two, and the multiple plug-in layers in one plug-in group correspond to at least part of the multiple plug-in layers in another plug-in group in a one-to-one manner and are at the same height. This arrangement facilitates the two driving members 300 and the two supporting members 400 to alternately drive the carrier 200 to move along the first direction.

[0058] In other embodiments, when there are two plug-in groups, the multiple plug-in layers in one plug-in group and the multiple plug-in layers in another plug-in group may be alternately arranged one by one along the first direction.

[0059] For further information, see Figure 2 and Figure 4 The width of the insertion slot 200' is gradually reduced from the slot opening to the slot bottom. This arrangement can play a guiding role when the supporting portion 420 is plugged into the insertion slot 200', so that the supporting portion 420 can be inserted into the insertion slot 200'.

[0060] For further information, see Figure 2 and Figure 4The two plug-in slots 200' corresponding to any plug-in layer of any plug-in group are both penetrated on the side facing away from the other plug-in group to form a clearance opening 200". This arrangement, on the one hand, can effectively reduce the weight of the carrier 200, and thus can reduce the load of the driving member 300. On the other hand, it is convenient to inspect and repair the worn position in the plug-in slot 200', and it is also convenient to inspect and repair when the supporting part 420 and the plug-in slot 200' are stuck.

[0061] See also Figure 2 In order to enhance the compactness of the material conveying device 1000 in structure, in one embodiment of the present application, the fixing frame 100 is arranged in a U shape, which includes two fixing parts 110 arranged in parallel and a base 120 connecting the two fixing parts 110, each driving member 300 is arranged on the base 120 and located between the two fixing parts 110, and the carrier 200 is movably connected with the fixing part 110, and the movably connected is the movably connected between the carrier 200 and the fixing frame 100 in the above embodiment. Such arrangement allows the driving member 300 to be retracted inside the fixing frame 100, thereby reducing the body shape of the material conveying device 1000, so as to achieve the purpose of enhancing the compactness of the material conveying device 1000 in structure.

[0062] The connection method between the fixing portion 110 and the base portion 120 may be a fixed connection method or a detachable connection method in the above embodiment, which is not specifically limited here.

[0063] For further information, see Figure 1 and Figure 4 The base 120 is provided with a mounting seat 121 located between the two fixing parts 110, one driving member 300 is provided on the base 120, and the other driving member 300 is provided on the surface of the mounting seat 121 away from the base 120. In this way, when both driving members 300 are not started, a fixed initial height difference can be provided between the two supporting members 400, so that the two driving members 300 and the two supporting members 400 can cooperate to drive the carrier 200 to perform step-by-step loading and unloading.

[0064] Specifically, the base 120 is further provided with a base 122 located between the two fixing parts 110, the base 122 is arranged lower than the mounting seat 121, and the two driving members 300 are respectively installed on the mounting seat 121 and the base 122. Such an arrangement can facilitate the installation of the two driving members 300 under the premise that the two supporting members 400 have a fixed initial height difference.

[0065] See also Figure 2In order to further enhance the compactness of the material conveying device 1000, in one embodiment of the present application, the carrier 200 is provided with a receiving space (not marked), and each driving member 300 and the supporting member 400 are located in the receiving space; all the plug-in slots 200' are provided on two opposite surfaces of the receiving space. Specifically, the carrier 200 is located between the two fixing portions 110.

[0066] See also Figure 2 In one embodiment of the present application, the carrier 200 includes a carrier portion 210 and two support portions 220. The two support portions 220 are installed at a distance on the same side of the carrier portion 210 so that the two support portions 220 and the carrier portion 210 are surrounded by a receiving space; each support portion 220 is movably connected to the fixing frame 100, and the movably connected connection is the movably connected connection between the carrier 200 and the fixing frame 100 in the above embodiment, and each support portion 220 can move along the first direction; all the plug-in slots 200' are arranged on surfaces of the two support portions 220 that are close to each other.

[0067] Specifically, the object-carrying part 210 is located above the two supporting parts 220, and the two supporting parts 220 are movably connected to the two fixing parts 110. This arrangement can enhance the stability of the movable connection between the object-carrying rack 200 and the fixing rack 100.

[0068] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A material conveying device, characterized in that: The material conveying device comprises: a fixed frame, a loading frame, at least two driving members, at least two supporting members and a controller; The object carrier is movably connected to the fixed frame, and the object carrier can move along a first direction; Each of the driving members is disposed on the fixing frame, and each of the driving members is connected to the corresponding supporting member to drive the corresponding supporting member to move along the first direction; Each of the supporting members can be expanded or contracted, so as to be matched or released with different positions of the object carrier in the first direction in turn when the supporting members move along the first direction, so as to support or release the object carrier; A controller is communicatively connected with each of the driving members and each of the supporting members.

2. The material conveying device according to claim 1, characterized in that: Each of the supporting parts includes a driving part and two supporting parts connected to the driving part. Each of the driving parts is installed on the corresponding driving part, and each of the driving parts can drive the corresponding two supporting parts to move away from each other or towards each other to expand or contract. Each of the driving parts is communicatively connected to the controller.

3. The material conveying device according to claim 2, characterized in that: Each of the driving parts is a parallel clamping cylinder, and the two driving ends of each of the parallel clamping cylinders are respectively connected to the two corresponding supporting parts to drive the two supporting parts to move in opposite directions or towards each other.

4. The material conveying device according to claim 2, characterized in that: The cargo carrier is provided with at least two plug-in groups arranged in parallel, each of the plug-in groups comprises a plurality of plug-in layers arranged at intervals along a first direction, and each of the plug-in layers comprises two plug-in slots arranged opposite to each other; The two supporting parts corresponding to each supporting member can selectively cooperate with or release cooperation with the two plug-in slots of any plug-in layer of the corresponding plug-in group when the two supporting parts move along the first direction.

5. The material conveying device according to claim 4, characterized in that: The width of the plug-in slot is gradually reduced from the slot opening to the slot bottom.

6. The material conveying device according to claim 4, characterized in that: The two plug-in slots corresponding to any plug-in layer of any plug-in group are both arranged through the side facing away from the other plug-in group to form a clearance opening.

7. The material conveying device according to claim 4, characterized in that: The object carrier is provided with a containing space, and each of the driving members and the supporting member is located in the containing space; all of the plug-in slots are arranged on two surfaces of the containing space that are opposite to each other.

8. The material conveying device according to claim 7, characterized in that: The cargo rack includes a cargo carrying portion and two supporting portions, wherein the two supporting portions are installed at a distance from each other on the same side of the cargo carrying portion so that the two supporting portions and the cargo carrying portion surround and form the accommodating space; each of the supporting portions is movably connected to the fixing frame, and each of the supporting portions can move along a first direction; and all of the plug-in slots are disposed on surfaces of the two supporting portions that are close to each other.

9. The material conveying device according to any one of claims 1 to 8, characterized in that: The fixing frame is arranged in a U shape, and comprises two fixing parts arranged in parallel and a base connecting the two fixing parts. Each of the driving members is arranged on the base and located between the two fixing parts. The object carrier is movably connected to the fixing parts.

10. The material conveying device according to claim 9, characterized in that: The base is provided with a mounting seat located between the two fixing parts, one driving member is provided on the base, and the other driving member is provided on a surface of the mounting seat away from the base.

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