Multi-tray feeding mechanism

Abstract

The utility model discloses a multi-tray feeding mechanism for a photovoltaic module end strip cutting and laying machine, which is characterized in that a sliding block is arranged at the bottom of a skip car, the sliding block is in sliding fit with a linear guide rail, a fixed shaft is arranged in the middle of the skip car, and the axis of the fixed shaft extends in the vertical direction and can rotate around the axis of the fixed shaft; at least two tensioning parts for clamping and fixing a material roll are arranged on the fixed shaft at intervals along the axis direction of the fixed shaft; the rotating discs are suitable for being arranged on the fixing shaft in a sleeving mode, and the two axial ends of any tensioning part are each provided with one rotating disc. The at least one feeding driving piece is correspondingly arranged on the outer side of the tensioning part and is in rotating contact with the two rotating discs on the two axial sides of the tensioning part or in rotating contact with the two adjacent rotating discs between any two adjacent tensioning parts so as to be used for driving the rotating discs to rotate and driving the material roll to release the material belt. Compared with a large material roll feeding mechanism which rotates around a horizontal shaft for feeding in the prior art, the feeding mechanism is smaller in structure, the size of equipment cannot be obviously increased, multiple material rolls can be fed at the same time at a time, and the feeding efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production equipment, in particular to a multi-material tray feeding mechanism. Background Art

[0002] EVA (ethylene vinyl acetate) is a key structural material commonly used in solar photovoltaic modules. It is used between the back of the solar cell and the glass top cloth to fix, insulate and protect. EVA is widely used in various photovoltaic modules, including polycrystalline silicon solar cell modules, monocrystalline silicon solar cell modules and amorphous silicon solar cell modules. It can effectively protect the cell and circuit system, improve the conversion efficiency of light energy and the life of the module.

[0003] Before lamination, the photovoltaic cell group needs to lay the EVA pads and battery cells on the component glass first, and then lay the EVA pads and backboard again, and finally enter the laminator for lamination. At present, in the process of cutting and laying the EVA pads, it has gradually evolved from manual single-machine operation to fully automatic machine operation. For example, the prior art (CN117342328A, CN117712211B, CN117507053A) discloses relevant technical solutions for punching, cutting and laying of EVA large rolls (horizontal unwinding mechanism). In the above-mentioned disclosed technical solutions, large rolls are used for feeding the EVA pads. The large rolls are generally arranged on one side of the frame, which causes the equipment to grow at least in the length direction, thereby increasing the volume of the entire equipment and occupying a large area. In order to solve the above technical problems, it is necessary to provide a new feeding mechanism to solve the above problems. Utility Model Content

[0004] In view of at least one of the above-mentioned technical problems, the purpose of the utility model is to provide a multi-material tray loading mechanism. By adopting multi-material tray loading, the loading mechanism can be directly set in the original free space at the bottom of the frame, without taking up additional space and causing a significant increase in the size of the equipment.

[0005] The technical solution of the utility model is:

[0006] The purpose of the utility model is to provide a multi-material tray feeding mechanism, which is used for feeding end strips in a photovoltaic module end strip cutting and laying machine, and comprises:

[0007] A material cart, on which a fixed shaft is provided, and the fixed shaft is provided with at least two tensioning parts which can expand and contract along its radial direction and clamp the material roll at intervals along its axial direction, and a tensioning driving member for driving the tensioning part to expand and contract is fixed at one end of the fixed shaft;

[0008] A rotating disk, which is suitable for being sleeved on the fixed shaft, and one rotating disk is respectively provided at the axial ends of any of the tensioning parts;

[0009] At least one feeding drive member is correspondingly arranged on the outer side of the tensioning part and is in rotational contact with the two turntables on both axial sides of the tensioning part or in rotational contact with two adjacent turntables between any two adjacent tensioning parts to drive the turntable to rotate and drive the material roll to release the material belt.

[0010] Preferably, it also includes:

[0011] A first auxiliary wheel frame, which is arranged on the material cart and located outside the turntable, and is provided with at least one first auxiliary wheel with a vertical axis;

[0012] A second auxiliary wheel frame is arranged behind the first auxiliary wheel frame along the discharge direction of the material belt and is also arranged on the outside of the turntable. A second auxiliary wheel with at least one axis along the horizontal direction is provided on the second auxiliary wheel. The material belt is sequentially wound around the first auxiliary wheel and the second auxiliary wheel and transformed from a vertical state to a horizontal state.

[0013] Preferably, at least two first auxiliary wheels are provided on the first auxiliary wheel frame at intervals in the vertical direction; and at least two second auxiliary wheels are provided on the second auxiliary wheel frame at intervals in the vertical direction.

[0014] Preferably, the number of the feeding drive members is at least two, and at least two of the feeding drive members are arranged circumferentially and / or vertically on the outer side of the turntable.

[0015] Preferably, the feeding drive member includes a feeding drive wheel rotatably arranged around an axis parallel to the vertical direction, a feeding drive member driving the feeding drive wheel to rotate around its axis, and a pushing member driving the feeding drive wheel and the feeding drive member as a whole to move closer to or away from the turntable along the radial direction of the turntable; at least one of the two feeding drive members contacts the corresponding turntable and drives the turntable to rotate.

[0016] Preferably, a sliding block is provided at the bottom of the material cart, and the sliding block is slidably matched with a linear guide rail fixed on the ground or on the bottom surface of the frame.

[0017] Preferably, it further comprises a locking assembly arranged at one end of the linear guide rail in the extending direction for locking the trolley; the locking assembly comprises:

[0018] A locking plate, which is arranged at the bottom of the material car and has a locking hole with an axis perpendicular to the extension direction of the linear guide rail;

[0019] A locking cylinder is arranged on the ground and can extend or retract toward or away from the locking plate in a direction perpendicular to the linear guide rail. A locking rod connected to its piston or piston rod and plugged and fixed in the locking hole is provided on the cylinder. After the trolley is pushed to a predetermined position, the locking rod can be driven to extend and plugged in the locking hole to lock the trolley.

[0020] Preferably, it also includes:

[0021] A frame body, which is installed above the material cart and connected to the frame of the photovoltaic module end strip cutting and laying machine;

[0022] A material belt guide assembly, which is arranged at the lower part of the frame and includes at least two groups of guide members arranged at intervals along the vertical direction, the two groups of guide members define a guide cavity for the material belt to be transported from bottom to top along the vertical direction, and any group of guide members includes two guide blocks arranged opposite to each other and at intervals along the horizontal direction;

[0023] The guide wheel assembly is arranged on the upper part of the frame and includes a driving guide wheel and a driven guide wheel arranged opposite to each other in the vertical direction. The driving guide wheel is fixed vertically relative to the frame but can rotate around an axis parallel to the horizontal direction. The driven guide wheel can move vertically closer to or away from the driving guide wheel relative to the frame and can rotate around an axis parallel to the horizontal direction. The material belt changes from a horizontal state to a horizontal state consistent with the end strip after passing through the material belt guide assembly and the guide wheel assembly vertically.

[0024] Preferably, a material belt detection sensor for detecting the presence or absence of the material belt is also provided at the bottom of the frame.

[0025] Preferably, universal wheels are also provided at the bottom of the trolley.

[0026] Compared with the prior art, the advantages of the utility model are:

[0027] The utility model discloses a multi-material tray loading mechanism, which uses a rotating shaft to load the material strip along the vertical or horizontal multi-material tray loading mechanism, and the multi-material tray loading mechanism can be installed in the bottom space of the frame of the photovoltaic module cutting and laying machine, and does not occupy the position outside the frame. Compared with the large material roll feeding mechanism that rotates around a horizontal axis to feed the material in the prior art, the multi-material tray loading mechanism has a smaller structure, does not cause a significant increase in the volume of the equipment, can realize the simultaneous loading of multiple material rolls at one time, and has a higher loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0029] Figure 1It is a structural schematic diagram of a multi-material tray loading mechanism (on which a material roll is provided but no material belt guide assembly, guide wheel assembly, or material belt detection sensor) according to an embodiment of the utility model at one angle;

[0030] Figure 2 It is a structural schematic diagram of a multi-material tray loading mechanism (on which a material roll is provided but no material belt guide assembly, guide wheel assembly, or material belt detection sensor) according to an embodiment of the utility model from another angle;

[0031] Figure 3 It is a structural schematic diagram of a multi-material tray loading mechanism (without a material roll and excluding a material belt guide assembly, a guide wheel assembly, and a material belt detection sensor) of an embodiment of the utility model at another angle;

[0032] Figure 4 It is a schematic structural diagram of a fixed shaft of a multi-material tray feeding mechanism according to an embodiment of the utility model;

[0033] Figure 5 This is a structural schematic diagram of a multi-material tray loading mechanism according to an embodiment of the utility model installed on a photovoltaic module end strip cutting and laying machine (with the frame omitted);

[0034] Figure 6 for Figure 5 A partial enlarged structural diagram of the middle A part;

[0035] Figure 7 It is a structural schematic diagram of a multi-material tray loading mechanism (including only a material belt guide assembly, a guide wheel assembly, and a material belt detection sensor) of an embodiment of the utility model;

[0036] Figure 8 It is a schematic diagram of the main structure of a photovoltaic module cutting and laying machine (including a frame) provided with a multi-material tray raising mechanism according to an embodiment of the utility model.

[0037] Wherein: 100, multi-material tray loading mechanism; 10, material coil; 11, material cart; 12, linear guide rail; 13, slider; 14, locking assembly; 141, locking plate; 142, locking cylinder; 15, turntable; 16, feeding drive wheel; 160, displacement drive member; 17, fixed shaft; 170, tensioning drive member; 171, tensioning part; 18, first auxiliary wheel frame; 181, first auxiliary wheel; 19, second auxiliary wheel frame; 191, second auxiliary wheel; 110, universal wheel; 111, frame; 112, material belt guide assembly; 113, guide wheel assembly; 1131, active guide wheel; 1132, driven guide wheel; 114, material belt detection sensor; 200, frame. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0039] A multi-tray loading mechanism provided in an embodiment of the present utility model is used for loading end strips (the material can be selected as EVA or POE, in a shape of a Chinese character 'ri', including two parallel and spaced long cushion strips and three parallel and spaced short cushion strips) of a photovoltaic module, and can be placed in the empty space at the bottom inside the frame 200 of a cutting and laying machine for the end strips of a photovoltaic module (as Figure 8 shown), so that the floor area of the entire device will not increase significantly. There is no need to be arranged on one side of the frame 200 like the large coil 10 loading mechanism in the prior art, which causes the length of the entire device to become larger and the floor area of the device to be large. Refer to Figures 1 to 7 , and mainly includes a material cart 11, a fixed shaft 17, a turntable 15, a first auxiliary wheel frame 18, a second auxiliary wheel frame 19, a feeding driving member, and a locking assembly 14.

[0040] In the embodiment of the present utility model, the width of the coil 10 is the same as the width of the long cushion strip of the end strip. During subsequent cutting, it is only necessary to cut the tape into the same length as the end strip. In the embodiment of the present utility model, the material cart 11 is slidably arranged on the bottom surface of the frame or on the ground, so that the material cart 11 can be pulled out to replace a new coil 10. Specifically, as Figures 1 to 3 shown, a plurality of sliders 13, for example, two rows of opposite and spaced sliders 13, are provided at the bottom end of the material cart 11, and corresponding linear guide rails 12 that are slidably matched with the sliders 13 one by one are provided on the bottom surface of the frame or on the ground. Preferably, universal wheels 110 are further provided at the bottom end of the material cart 11 to make the pulling out and pushing in of the material cart 11 smoother. As an alternative embodiment, the sliders 13 and the linear guide rails 12 may not be provided at the bottom of the frame.

[0041] As Figure 1 and Figure 3 shown, the fixed shaft 17 is vertically arranged at the middle position of the upper surface of the material cart 11, and the turntable 15 is horizontally sleeved and fixed on the fixed shaft 17. The fixed shaft 17 in the embodiment of the present utility model, by way of example, as Figure 4As shown, it includes a shaft body with an axis extending vertically, and a plurality of tensioning parts 171 such as expansion bushings are arranged on the shaft body along its axial direction, which can be expanded and contracted in the radial direction to achieve tension or loosening. The diameter of the expansion bushing is larger than the diameter of other positions of the shaft body. The axial ends of the expansion bushing are respectively used to fix the turntable 15. The material roll 10 is fixed on the expansion bushing, and a turntable 15 is respectively arranged at the axial ends of the expansion bushing. The diameter of the turntable 15 should be larger than the diameter of the material roll 10 to prevent the feeding drive member from failing to contact the turntable 15 and achieve driving during driving. At one end of the fixed shaft 17, such as Figure 4 The upper end shown is provided with a tension driving member 170 such as a cylinder for driving the expansion bushing to expand and contract. As an alternative embodiment, the fixed shaft 17 can also be horizontal.

[0042] In the embodiment of the utility model, the feeding of the material roll 10 is driven by the feeding drive to drive the turntable 15 to rotate, thereby driving the rotation feeding of the material roll 10 supported on the turntable 15. That is to say, the feeding drive is arranged on the outside of the turntable 15 and is in rotational contact with the turntable 15, and drives the turntable 15 to rotate around the axis of the fixed shaft 17 through friction force, thereby driving the material roll 10 to rotate and feed. In the embodiment of the utility model, a feeding drive is in rotational contact with two turntables 15 between a tensioning part 171 at the same time. In another embodiment, a feeding drive is in rotational contact with two adjacent turntables 15 between any two adjacent tensioning parts 171, that is, a feeding drive can drive two material rolls 10 to feed at the same time, greatly improving efficiency.

[0043] In the embodiment of the utility model, the number of the feeding drive members is at least two, and the multiple feeding drive members are arranged vertically at intervals, and can be on the same vertical line; they can also be staggered up and down along the circumference, that is, no longer on the same vertical line, to avoid interference; they can also be arranged circumferentially at intervals along the same turntable 15, that is, multiple feeding drive members drive one turntable 15 to rotate at the same time. As for the feeding drive members, in the embodiment of the utility model, the feeding drive members can approach or move away from the turntable 15 along the radial direction of the turntable 15. Only when it is necessary to drive the corresponding turntable 15 to rotate, the feeding drive members will approach the turntable 15 and contact the turntable 15. When it is not necessary to drive the corresponding turntable 15 to rotate, the feeding drive members will move away from the corresponding turntable 15 and not contact the corresponding turntable 15, so as not to affect the rotation and feeding of other turntables 15. For example, Figures 1 to 3 As shown, the feeding drive member includes a feeding drive wheel 16 with an axis extending vertically, a feeding drive motor driving the feeding drive wheel 16 to rotate around its axis, and a displacement drive member 160 such as a telescopic cylinder and / or a linear slide rail slider, etc., which drives the feeding drive motor and the feeding drive wheel 16 as a whole to move radially closer to or away from the corresponding turntable 15.

[0044] In the embodiment of the utility model, a first auxiliary wheel frame 18 and a second auxiliary wheel frame 19 are respectively provided on the outer side of the turntable 15, more specifically, on the two adjacent sides of the material cart 11, wherein the first auxiliary wheel frame 18 is provided with a first auxiliary wheel 181, and a plurality of first auxiliary wheels 181 are provided in the vertical direction. It should be noted that the number and height of the first auxiliary wheels 181 correspond to the material roll 10 for feeding, and the axis of the first auxiliary wheel 181 is in the vertical direction, that is, the material strip is fed from the material roll 10 in a vertical state (the wide side of the material strip is in the vertical direction). The second auxiliary wheel frame 19 is provided with a second auxiliary wheel 191, and similarly, a plurality of second auxiliary wheels 191 are also provided in the vertical direction, and the number and height correspond to those of the first auxiliary wheel 181. In the embodiment of the utility model, the axis of the second auxiliary wheel 191 is in the horizontal direction, and the material strip will change from a vertical state to a horizontal state after passing through the second auxiliary wheel 191.

[0045] When the material roll 10 on the material cart 11 is driven to rotate for feeding, the material cart 11 may be driven to move, thereby affecting the feeding. Figure 2 As shown, in the embodiment of the utility model, a locking assembly 14 is provided on one end of the trolley 11 along the extension direction of the linear guide rail 12 and on the ground to lock the trolley 11 on the ground without moving. The locking assembly 14 includes a locking plate 141 and a locking cylinder 142. The locking plate 141 is provided at the bottom of one end of the trolley 11 along the extension direction of the linear guide rail 12. The locking cylinder 142 is provided on the ground and can be telescopically moved toward or away from the locking plate 141 in a direction perpendicular to the linear guide rail 12. A locking hole (not marked) is provided on the locking plate 141, and the axial direction of the locking hole is perpendicular to the extension direction of the linear guide 12. The locking cylinder 142 is provided with a locking rod (not marked) connected to its piston or piston rod and can be extended or retracted toward the locking hole. The axis of the locking rod is parallel to the locking hole. After the trolley 11 is pushed to the predetermined position, the locking rod can be extended and inserted into the locking hole to lock the trolley 11.

[0046] In the embodiment of the utility model, since the multi-material tray loading mechanism 100 is arranged in the inner bottom space of the rack 200, it is necessary to pull the material strip upward so that it can be temporarily stored on the temporary storage unit above the photovoltaic module after cutting, so it is necessary to set a mechanism to guide the material strip vertically. Figures 5 to 7As shown, the multi-material tray loading mechanism 100 of the utility model also includes a frame 111 disposed above the material cart 11 and connected to the frame 200 of the photovoltaic module end strip cutting and laying machine, and a material strip guiding assembly 112 for guiding the material strip in the vertical direction at the lower part of the frame 111. The material strip guiding assembly 112 includes at least two groups of guide members spaced vertically, and the width of the guide members can be adjusted and is consistent with the width of the material strip during the guiding process to prevent the material strip from running sideways and shifting laterally. In order to achieve the adjustment of the guide cavity, each group of guide members is composed of two guide blocks that are opposite and spaced in the first direction. The guide blocks can be connected to the cylinder and driven by the cylinder to move laterally to achieve the adjustment of the guide cavity. The guide wheel assembly 113 is arranged above the material strip guiding assembly 112, and is used to pull and flatten the material strip so that the material strip is converted from a vertical state to a horizontal state again (the horizontal state at this time is to ensure that the long pads of the material strip and the end strip are in the same direction after subsequent shearing, that is, the horizontal state at this time is along the second direction), so as to be consistent with the direction of the pads of the end strips on the photovoltaic module on which the pads are to be laid. Specifically, the guide wheel assembly 113 includes a driving guide wheel 1131 and a driven guide wheel 1132 which are relatively arranged vertically and can move relative to each other, wherein the driving guide wheel 1131 is arranged at the bottom and fixed relative to the frame 111, the axis of the driving guide wheel 1131 is in the horizontal direction and can rotate around the horizontal axis, the driven guide wheel 1132 is arranged at the top and can move up and down relative to the frame 111, that is, close to or away from the driving guide wheel 1131, similarly, the axis of the driven guide wheel 1132 is also in the horizontal direction and can rotate around the horizontal axis, and illustratively, the driven guide wheel 1132 includes a guide wheel body and a vertically retractable cylinder (not marked) fixed above the guide wheel body. The driving guide wheel 1131 is connected to a reducer (not marked). When the driving guide wheel 1131 and the driven guide wheel 1132 are away from each other, the feeding belt can penetrate, and after the material belt penetrates, they are close to each other and pressed tightly, and the material belt is driven to be transported toward the rear shearing mechanism by the relative rotation of the two.

[0047] Preferably, in order to enable the operator to promptly find out whether the material roll 10 has been released and to replenish the material in time, Figure 7As shown, in the embodiment of the present invention, a tape detection sensor 114 for detecting the presence of a tape is also provided at the bottom of the frame 111. When the tape is continuously fed, the tape detection sensor 114 at the bottom of the frame 111 can detect the tape, but when the current roll 10 is released and the tail end of the tape has passed the bottom of the frame 111 and reached the tape guide assembly 112 at the lower end of the frame 111, the tape detection sensor 114 cannot detect the tape. Preferably, the cutting and laying machine is also provided with an alarm device (not shown), and the tape detection sensor 114 is electrically connected to the alarm device. When the tape detection sensor 114 detects that there is no tape, the alarm device will sound an alarm and stop the continued feeding of the tape. At this time, the operator can replace a new roll 10 in time. The tape detection sensor 114 is an existing conventional photoelectric sensor, and the specific structure and principle are not described and limited, and those skilled in the art can easily know it.

[0048] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A multi-material tray feeding mechanism, characterized in that: The multi-material tray feeding mechanism is used for feeding end strips in a photovoltaic module end strip cutting and laying machine, and comprises: A material cart, on which a fixed shaft is provided, and the fixed shaft is provided with at least two tensioning parts which can expand and contract along its radial direction and clamp the material roll at intervals along its axial direction, and a tensioning driving member for driving the tensioning part to expand and contract is fixed at one end of the fixed shaft; A rotating disk, which is suitable for being sleeved on the fixed shaft, and one rotating disk is respectively provided at the axial ends of any of the tensioning parts; At least one feeding drive member is correspondingly arranged on the outer side of the tensioning part and is in rotational contact with the two turntables on both axial sides of the tensioning part or in rotational contact with two adjacent turntables between any two adjacent tensioning parts to drive the turntable to rotate and drive the material roll to release the material belt.

2. The multi-material tray loading mechanism according to claim 1, characterized in that: Also includes: A first auxiliary wheel frame, which is arranged on the material cart and located outside the turntable, and is provided with at least one first auxiliary wheel with a vertical axis; A second auxiliary wheel frame is arranged behind the first auxiliary wheel frame along the discharge direction of the material belt and is also arranged on the outside of the turntable. A second auxiliary wheel with at least one axis along the horizontal direction is provided on the second auxiliary wheel. The material belt is sequentially wound around the first auxiliary wheel and the second auxiliary wheel and transformed from a vertical state to a horizontal state.

3. The multi-material tray loading mechanism according to claim 2, characterized in that: At least two first auxiliary wheels are arranged on the first auxiliary wheel frame at intervals along the vertical direction; and at least two second auxiliary wheels are arranged on the second auxiliary wheel frame at intervals along the vertical direction.

4. The multi-material tray loading mechanism according to claim 1, characterized in that: The number of the feeding drive members is at least two, and at least two of the feeding drive members are arranged circumferentially and / or vertically on the outer side of the turntable.

5. The multi-material tray loading mechanism according to claim 4, characterized in that: The feeding drive member includes a feeding drive wheel rotatably arranged around an axis parallel to the vertical direction, a feeding drive motor driving the feeding drive wheel to rotate around its axis, and a displacement drive member driving the feeding drive wheel and the feeding drive motor as a whole to move closer to or away from the turntable along the radial direction of the turntable.

6. The multi-material tray loading mechanism according to any one of claims 1 to 5, characterized in that: A sliding block is provided at the bottom of the material cart, and the sliding block is slidably matched with a linear guide rail fixed on the ground or on the bottom surface of the frame.

7. The multi-material tray loading mechanism according to claim 6, characterized in that: It also includes a locking assembly for locking the trolley, which is arranged at one end of the linear guide rail in the extending direction, and the locking assembly includes: A locking plate, which is arranged at the bottom of the material car and has a locking hole with an axis perpendicular to the extension direction of the linear guide rail; A locking cylinder is arranged on the ground and can extend or retract toward or away from the locking plate in a direction perpendicular to the linear guide rail. A locking rod connected to its piston or piston rod and plugged and fixed in the locking hole is provided on the cylinder. After the trolley is pushed to a predetermined position, the locking rod can be driven to extend and plugged in the locking hole to lock the trolley.

8. The multi-material tray loading mechanism according to claim 1, characterized in that: Also includes: A frame body, which is installed above the material cart and connected to the frame of the photovoltaic module end strip cutting and laying machine; A material belt guide assembly, which is arranged at the lower part of the frame and includes at least two groups of guide members arranged at intervals along the vertical direction, the two groups of guide members define a guide cavity for the material belt to be transported from bottom to top along the vertical direction, and any group of guide members includes two guide blocks arranged opposite to each other and at intervals along the horizontal direction; The guide wheel assembly is arranged on the upper part of the frame and includes a driving guide wheel and a driven guide wheel which are arranged vertically opposite to each other and can move relatively. The driving guide wheel is fixed vertically relative to the frame but can rotate around an axis parallel to the horizontal direction. The driven guide wheel can move vertically closer to or away from the driving guide wheel relative to the frame and can rotate around an axis parallel to the horizontal direction. The material belt changes from a horizontal state to a horizontal state consistent with the end strip after passing through the material belt guide assembly and the guide wheel assembly vertically.

9. The multi-material tray loading mechanism according to claim 8, characterized in that: A material belt detection sensor for detecting the presence or absence of the material belt is also provided at the bottom of the frame.

10. The multi-material tray loading mechanism according to claim 1, characterized in that: Universal wheels are also provided at the bottom of the trolley.

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