Feeding device for plate cutting

Abstract

The utility model relates to the technical field of plate transfer equipment, in particular to a feeding device for plate cutting, which comprises a frame, a walking frame and a sucker frame, the walking frame comprises two longitudinal beams, the two longitudinal beams are connected through a plurality of cross beams, each cross beam is provided with a lifting driving device, and the lifting driving device is positioned in the center of the walking frame. A vertical guide frame is arranged in the center of the top of the suction cup frame, and the lifting driving device is in driving fit with the guide frame; the two longitudinal beams are steel pipes or profiles, the side faces of the two ends of each longitudinal beam are connected with mounting plates, the mounting plates are provided with walking wheels, and the walking wheels directly face the end faces of the longitudinal beams; the two walking wheels located at the same ends of the two longitudinal beams are connected through a transmission shaft, and a walking driving device is arranged at one end of the transmission shaft. A plurality of limiting wheels are arranged on the inner sides of the two longitudinal beams respectively and abut against the inner side wall of the rack. The feeding device for plate cutting can convey metal plates with large weight and large size, and has the advantages of being simple in structure and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of plate transport equipment, in particular to a feeding device for cutting plates. Background Art

[0002] The vacuum suction cup type plate handling machine can greatly reduce the manpower. The current plate handling mostly adopts the gear rack drive mode to realize the horizontal transportation. For example, CN108161971A discloses an efficient plate destacking suction cup robot, "a horizontal rack is provided on the frame 1, a horizontal travel motor 12 connected to a worm gear reducer is provided on the suction mechanism frame 2, a horizontal gear matched with the horizontal rack is provided on the driving shaft of the worm gear reducer, and the horizontal travel motor 12 is connected to the controller"; this gear rack drive mode makes the equipment costly and the travel speed slow, and has high power requirements for the travel motor.

[0003] For larger electrical boxes, such as capacitor cabinets, high-voltage cabinets and low-voltage cabinets, plates with strong rigidity and thick thickness are used, and the plates need to be transported to the laser cutting machine for efficient cutting and punching. Due to the large size of the plates, the distance between the laser cutting loading station and the plate picking station is large, and the above-mentioned gear rack drive for horizontal transportation is not suitable for loading larger electrical box plates on the laser cutting machine. Utility Model Content

[0004] The utility model aims to provide a feeding device for plate cutting, which can transport plates of larger sizes and is suitable for feeding larger-sized electrical box plates on a laser cutting machine, and has the characteristics of simple structure and high reliability.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A feeding device for plate cutting, comprising a frame, a traveling frame and a suction cup frame, wherein the traveling frame comprises two longitudinal beams, the two longitudinal beams are connected by a plurality of cross beams, the cross beams are provided with a lifting drive device, the lifting drive device is located at the center of the traveling frame, a vertical guide frame is provided at the center of the top of the suction cup frame, and the lifting drive device cooperates with the guide frame in driving;

[0007] The two longitudinal beams are steel pipes or profiles, and the sides of the two ends of the longitudinal beams are connected with mounting plates, and the mounting plates are provided with running wheels, and the running wheels are directly opposite to the end faces of the longitudinal beams;

[0008] The two traveling wheels located at the same end of the two longitudinal beams are connected through a transmission shaft, one end of the transmission shaft is provided with a traveling driving device, and the traveling driving device is used to drive the traveling frame to move longitudinally along the top surface of the frame;

[0009] A plurality of limiting wheels are respectively arranged on the inner sides of the two longitudinal beams, and the wheel surfaces of the limiting wheels abut against the inner side walls of the frame.

[0010] Furthermore, mounting plates are provided on both sides of the longitudinal beam, and the running wheel is located between the two mounting plates;

[0011] The two mounting plates of the longitudinal beam are both provided with bearing seats, and the transmission shaft passes through the bearing seats of the mounting plates of the two longitudinal beams;

[0012] At one end of the longitudinal beam away from the transmission shaft, the travel wheel is installed on the bearing seat through a rotating shaft.

[0013] Furthermore, a U-shaped slot hole is formed at one end of the mounting plate away from the longitudinal beam, and the transmission shaft and the rotating shaft respectively pass through the U-shaped slot hole;

[0014] The transmission shaft and the rotating shaft are both provided with wear-resistant rings, the wear-resistant rings are located in the U-shaped slot hole, and the outer wall of the wear-resistant ring is matched with the bottom of the U-shaped slot hole.

[0015] Furthermore, the transmission shaft and the rotating shaft are both provided with limit rings, and the wear-resistant ring and the limit ring are respectively arranged on two sides of the bearing seat.

[0016] Furthermore, the travel drive device includes a travel motor and a reduction box, the output end of the middle part of the reduction box is connected to the transmission shaft, and the input end of the upper part of the reduction box is connected to the travel motor;

[0017] The diameter of the traveling wheel is greater than the height of the reduction box.

[0018] Furthermore, the lifting drive device includes a base, a mounting seat and a lifting motor, wherein the base is arranged at a central position on the top of the walking frame; the mounting seat is arranged on the base, and the lifting motor is arranged on the outer side of the mounting seat;

[0019] The mounting seat has a rectangular mounting space, and two rows of sliders are respectively arranged on two opposite sides of the mounting space;

[0020] The guide frame runs through the installation space, two guide rails are respectively arranged on opposite sides of the guide frame, and a row of the sliders is slidably matched with one of the guide rails;

[0021] The guide frame is provided with a vertical rack, and the output end of the lifting motor is provided with a driving gear, and the driving gear is meshed with the rack.

[0022] Furthermore, an upper limit position sensor assembly and a lower limit position sensor assembly are respectively provided at the upper and lower parts of the outer side of the mounting seat; a lower limit position sensing plate is provided at the top of the guide frame, and an upper limit position sensing plate is provided at the bottom; the upper limit position sensing plate corresponds to the position of the upper limit position sensor assembly, and the lower limit position sensing plate corresponds to the position of the lower limit position sensor assembly;

[0023] The inner wall of the mounting seat is provided with an origin position sensor, the guide frame is provided with an origin position sensing plate, and the origin position sensor corresponds to the position of the origin position sensing plate;

[0024] The origin position sensing plate is located between the upper limit position sensing plate and the lower limit position sensing plate.

[0025] Furthermore, the upper limit position sensing assembly and the lower limit position sensing assembly each include two sensors, and the two sensors are spaced apart in the vertical direction.

[0026] Furthermore, the upper limit position sensing plate and the lower limit position sensing plate are both Z-shaped bending plates;

[0027] The upper limit position sensing plate and the lower limit position sensing plate are arranged in mirror symmetry.

[0028] Furthermore, the frame is provided with a material unloading station, a material loading station and a material unloading station in sequence; and a plurality of stacked buffer trays are respectively provided at the four corners of the top surface of the frame;

[0029] A material unloading in-place sensor is arranged on a side of the frame facing away from the travel drive device, and a material unloading in-place sensor plate is arranged on the side of the travel frame slot; when the material unloading in-place sensor is blocked by the material unloading in-place sensor, there is a gap between the buffer plate and the travel wheel.

[0030] The technical solution provided by the utility model may have the following beneficial effects:

[0031] The traveling frame of the present technical solution is provided with traveling wheels, and the traveling wheels are driven by the traveling driving device to make the traveling frame move in the horizontal direction, which can greatly improve the running speed of the traveling frame, can transport larger-sized plates, and is suitable for feeding larger-sized electrical box plates in the laser cutting machine, improving the feeding efficiency, and having a simple structure. In the present technical solution, the traveling wheels are directly opposite to the end face of the longitudinal beam, and the distance between the traveling frame and the top surface of the frame is greatly reduced, which greatly improves the stability of the traveling frame on the top surface of the frame, thereby ensuring that the suction cup frame can firmly adsorb the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of a feeding device for cutting a plate according to an embodiment of the utility model;

[0033] Figure 2 It is a schematic diagram of a walking frame, a suction cup frame, a lifting drive device and a guide frame;

[0034] Figure 3 It is a schematic diagram of the cooperation between the transmission shaft and the rotating shaft and the traveling frame;

[0035] Figure 4 is a schematic diagram of a lifting drive device;

[0036] Figure 5 It is a schematic diagram of the cooperation between the lifting drive device and the guide frame;

[0037] Among them, the frame 1, the buffer tray 11, and the material unloading sensor 12;

[0038] Walking frame 2, longitudinal beam 21, in-position sensing plate 211, cross beam 22, mounting plate 23, U-shaped slot 231,

[0039] Traveling wheel 24, transmission shaft 25, rotating shaft 26, wear-resistant ring 261, limiting ring 262, limiting wheel 27, bearing seat 28, travel driving device 29, travel motor 291, reduction box 292;

[0040] Suction cup rack 3;

[0041] Lifting drive device 4, base 41, mounting seat 42, mounting space 421, lifting motor 43, driving gear 431, slider 422, upper limit position sensor assembly 44, lower limit position sensor assembly 45, origin position sensor 46;

[0042] Guide frame 5 , guide rail 51 , rack 52 , lower limit position sensing plate 53 , upper limit position sensing plate 54 , origin position sensing plate 55 . DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0045] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Combine the following Figures 1 to 5 , describing a loading device for plate cutting according to an embodiment of the utility model.

[0048] A feeding device for plate cutting comprises a frame 1, a traveling frame 2 and a suction cup frame 3, the traveling frame 2 comprises two longitudinal beams 21, the two longitudinal beams 21 are connected by a plurality of cross beams 22, the cross beams 22 are provided with a lifting drive device 4, the lifting drive device 4 is located in the center of the traveling frame 2, a vertical guide frame 5 is provided in the center of the top of the suction cup frame 3, and the lifting drive device 4 cooperates with the guide frame 5 in driving;

[0049] The two longitudinal beams 21 are steel pipes or profiles. The sides of both ends of the longitudinal beams 21 are connected with mounting plates 23. The mounting plates 23 are provided with running wheels 24. The running wheels 24 are directly opposite to the end faces of the longitudinal beams 21.

[0050] Two traveling wheels 24 located at the same end of the two longitudinal beams 21 are connected by a transmission shaft 25, and a traveling driving device 29 is provided at one end of the transmission shaft 25. The traveling driving device 29 is used to drive the traveling frame 2 to move longitudinally along the top surface of the frame 1;

[0051] A plurality of limiting wheels 27 are respectively arranged on the inner sides of the two longitudinal beams 21 , and the wheel surfaces of the limiting wheels 27 abut against the inner side walls of the frame 1 .

[0052] The traveling frame 2 of the present technical solution is provided with a traveling wheel 24, and the traveling wheel 24 is driven by the traveling driving device 29 to move the traveling frame 2 in the horizontal direction, which can greatly improve the running speed of the traveling frame 2, and can transport larger-sized plates, which is suitable for feeding larger-sized electrical box plates to the laser cutting machine, thereby improving the feeding efficiency. Moreover, in the present technical solution, the installation of the traveling wheel 24 is realized by the mounting plate 23, and the two traveling wheels 24 are connected by the transmission shaft 25, and the two traveling wheels 24 are synchronized by a traveling driving device 29, so that the structure of the traveling frame 2 is simple.

[0053] It is worth noting that the walking wheel 24 is directly opposite to the end face of the longitudinal beam 21, rather than being set at the bottom of the longitudinal beam 21, which greatly reduces the distance between the walking frame 2 and the top surface of the frame 1, and greatly improves the stability of the walking frame 2 on the top surface of the frame 1, thereby ensuring that the suction cup frame 3 can firmly absorb the plate. In addition, the limiting wheels 27 on the inner side of the two longitudinal beams 21 are against the inner side wall of the frame 1 to achieve the lateral positioning of the walking frame 2; and based on the setting of the suction cup frame 3 and the guide frame 5 at the central position of the walking frame 2, the walking frame 2 can stably run on the top of the frame 1.

[0054] It should be noted that the travel drive device 29 is arranged at one end of the transmission shaft 25 instead of being arranged in the middle of the transmission shaft 25, which can reduce the load of the transmission shaft 25 and facilitate the arrangement of the electrical connection line of the travel drive device 29 on one side of the frame 1.

[0055] In one embodiment of the utility model, mounting plates 23 are provided on both sides of the longitudinal beam 21, and the running wheel 24 is located between the two mounting plates 23; the two mounting plates 23 of a longitudinal beam 21 are provided with bearing seats 28, and the transmission shaft 25 passes through the bearing seats 28 of the mounting plates 23 of the two longitudinal beams 21; at the end of the longitudinal beam 21 away from the transmission shaft 25, the running wheel 24 is installed on the bearing seat 28 through the rotating shaft 26.

[0056] By arranging two mounting plates 23 and two bearing seats 28 at the end of the longitudinal beam 21, the installation of the walking wheel 24 on the longitudinal beam 21 is made more stable, and the running of the walking frame 2 will not be skewed, which further improves the stability of the plate transportation. Exemplarily, the mounting plate 23 is fixed to the longitudinal beam 21 by screws or welding. Preferably, one end of the mounting plate 23 is bent so that the distance between the two mounting plates 23 and the longitudinal connection end is small, while the distance between the installation of the walking wheel 24 is large, which is convenient for connecting the longitudinal beam 21 and installing the walking wheel 24. Exemplarily, the bearing seat 28 is square, and the four corners of the bearing seat 28 are set on the outer side of the mounting plate 23 by screws.

[0057] In a preferred embodiment of the utility model, a U-shaped slot 231 is provided at one end of the mounting plate 23 away from the longitudinal beam 21, and the transmission shaft 25 and the rotating shaft 26 respectively pass through the U-shaped slot 231; the transmission shaft 25 and the rotating shaft 26 are both provided with a wear-resistant ring 261, the wear-resistant ring 261 is located in the U-shaped slot 231, and the outer wall of the wear-resistant ring 261 is adapted to the bottom of the U-shaped slot 231.

[0058] The U-shaped slot 231 is provided to facilitate the transmission shaft 25 and the rotating shaft 26 with the wear-resistant ring 261 to penetrate the mounting plate 23. The outer wall of the wear-resistant ring 261 is adapted to the bottom of the U-shaped slot 231, which can reduce the shaking of the running wheel 24. The wear-resistant ring 261 is used to limit the installation of the transmission shaft 25 or the rotating shaft 26 on the bearing seat 28.

[0059] Specifically, the transmission shaft 25 and the rotating shaft 26 are both provided with a limit ring 262, and the wear ring 261 and the limit ring 262 are respectively provided on both sides of a bearing seat 28, so that the limit ring 262 and the wear ring 261 limit the transmission shaft 25 or the rotating shaft 26 to the bearing seat 28. The wear ring 261 contacts the inner ring of the bearing, and the wear ring 261, the transmission shaft 25, the rotating and walking wheels 24 rotate synchronously.

[0060] In a preferred embodiment of the utility model, the travel drive device 29 includes a travel motor 291 and a reduction box 292, the output end of the middle of the reduction box 292 is connected to the transmission shaft 25, and the input end of the upper part of the reduction box 292 is connected to the travel motor 291; the diameter of the travel wheel 24 is greater than the height of the reduction box 292, and the bottom surface of the travel motor 291 and the bottom surface of the reduction box 292 are both spaced from the top surface of the frame 1. When the travel frame 2 travels on the top surface of the frame 1, the reduction box and the travel motor 291 do not rub or collide with the frame 1. Preferably, the top surface of the frame 1 is a plane, so that the structure of the frame 1 is simple.

[0061] In one embodiment of the utility model, the lifting drive device 4 includes a base 41, a mounting seat 42 and a lifting motor 43. The base 41 is arranged at the central position of the top of the walking frame 2; the mounting seat 42 is arranged on the base 41, and the lifting motor 43 is arranged on the outside of the mounting seat 42;

[0062] The mounting seat 42 has a rectangular mounting space 421, and two rows of sliders 422 are respectively disposed on two opposite sides of the mounting space 421;

[0063] The guide frame 5 passes through the installation space 421, and two guide rails 51 are respectively arranged on opposite sides of the guide frame 5, and a row of sliders 422 is slidably matched with one guide rail 51;

[0064] The guide frame 5 is provided with a vertical rack 52 , and the output end of the lifting motor 43 is provided with a driving gear 431 , which is meshed with the rack 52 .

[0065] The mounting seat 42 is mounted on the walking frame 2 through the base 41, so that the base 41 is installed more firmly. The mounting seat 42 is obtained by connecting four mounting plates 23, so that the mounting seat 42 has a rectangular mounting space 421, and the cross section of the guide frame 5 is also rectangular, and the two are adapted. By making a plurality of guide rails 51 slide with the mounting seat 42, and each guide rail 51 is equipped with a plurality of sliders 422, the lifting movement of the guide frame 5 is made more stable, and the guide frame 5 is ensured to maintain a vertical state without being skewed. In addition, the lifting motor 43 drives the guide frame 5 through the gear rack 52, with high driving accuracy.

[0066] In one embodiment of the utility model, an upper limit position sensor assembly 44 and a lower limit position sensor assembly 45 are respectively disposed on the upper and lower portions of the outer side of the mounting seat 42; a lower limit position sensing plate 53 is disposed on the top of the guide frame 5, and an upper limit position sensing plate 54 is disposed on the bottom; the upper limit position sensing plate 54 corresponds to the position of the upper limit position sensor assembly 44, and the lower limit position sensing plate 53 corresponds to the position of the lower limit position sensor assembly 45;

[0067] The inner wall of the mounting seat 42 is provided with an origin position sensor 46, and the guide frame 5 is provided with an origin position sensing plate 55, and the origin position sensor 46 corresponds to the position of the origin position sensing plate 55;

[0068] The origin position sensing plate 55 is located between the upper limit position sensing plate 54 and the lower limit position sensing plate 53 .

[0069] By determining the upper limit position, lower limit position and origin position of the guide frame 5, the safety of the guide frame 5 can be improved. Specifically, by determining the origin position of the guide frame 5, it is beneficial for the controller to accurately control the running time of the lifting motor 43 or the number of rotations of the motor shaft, so that the rising and falling distances of the suction cup frame 3 are accurate, and the stopping position of the suction cup frame 3 when the feeding device stops transporting the plate can be determined.

[0070] Preferably, the upper limit position sensor assembly 44 and the lower limit position sensor assembly 45 each include two sensors, and the two sensors are spaced apart in the vertical direction. When the upper limit position sensing plate 54 or the lower limit position sensing plate 53 blocks one sensor, the lifting motor 43 starts to decelerate, and when the other sensor is blocked, the lifting motor 43 stops. The spacing between the two sensors provides a deceleration time for the lifting motor 43, preventing the lifting motor 43 from stopping suddenly, and preventing the guide frame 5, i.e., the guide structure, from being damaged by collision due to inertia.

[0071] Specifically, two sensors are arranged on the outer wall of the mounting seat 42 through an L-shaped frame, one side plate of the L-shaped frame is attached to the mounting seat 42 and connected with screws, and the other side plate of the L-shaped frame is provided with two parallel long strip mounting holes, and the sensors are positioned in the mounting holes through nuts.

[0072] Further preferably, the upper limit position sensing plate 54 and the lower limit position sensing plate 53 are both Z-shaped bending plates; the upper limit position sensing plate 54 and the lower limit position sensing plate 53 are arranged in mirror symmetry. Since the sensor is arranged on the side of the mounting seat 42, by setting the upper limit position sensing plate 54 and the lower limit position sensing plate 53 as Z-shaped bending plates, the end of the Z-shaped bending plate can extend to the side of the mounting seat 42, and then be sensed. Specifically, the sensor is a rod-shaped photoelectric sensor.

[0073] Specifically, rubber limit blocks are installed at the top and bottom of the guide frame 5, and the mechanical limit further ensures the operation safety. Specifically, the origin position sensor 46 is a slot-type photoelectric sensor, and the origin position sensing plate 55 is a flat plate.

[0074] In one embodiment of the utility model, the frame 1 is provided with a material unloading station, a material loading station and a material unloading station in sequence; a plurality of stacked buffer trays 11 are respectively provided at the four corners of the top surface of the frame 1;

[0075] A material unloading in-place sensor 12 is arranged on the side of the frame 1 away from the travel drive device 29, and an in-place sensing plate 211 is arranged on the side of the groove of the travel frame 2; when the in-place sensing plate 211 blocks the material unloading in-place sensor 12, there is a gap between the buffer plate 11 and the travel wheel 24. This gap is the buffer gap of the travel frame 2, that is, after the in-place sensing plate 211 blocks the material unloading in-place sensor 12, the material unloading in-place sensor 12 sends a deceleration signal to the travel motor 291, and the travel frame 2 and the buffer plate 11 are offset to complete the final positioning. At this time, the suction cup frame 3 is located above the loading position of the laser cutting machine, and the suction cup frame 3 desorbs the plate, and the plate falls on the loading position of the optical cutting machine.

[0076] Other structures and operations of a feeding device for cutting a plate according to an embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0077] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A feeding device for plate cutting, characterized in that: It includes a frame, a walking frame and a suction cup frame, wherein the walking frame includes two longitudinal beams, the two longitudinal beams are connected by a plurality of cross beams, the cross beams are provided with a lifting drive device, the lifting drive device is located in the center of the walking frame, a vertical guide frame is provided in the center of the top of the suction cup frame, and the lifting drive device cooperates with the guide frame in driving; The two longitudinal beams are steel pipes or profiles, and the sides of the two ends of the longitudinal beams are connected with mounting plates, and the mounting plates are provided with running wheels, and the running wheels are directly opposite to the end faces of the longitudinal beams; The two traveling wheels located at the same end of the two longitudinal beams are connected through a transmission shaft, one end of the transmission shaft is provided with a traveling driving device, and the traveling driving device is used to drive the traveling frame to move longitudinally along the top surface of the frame; A plurality of limiting wheels are respectively arranged on the inner sides of the two longitudinal beams, and the wheel surfaces of the limiting wheels abut against the inner side walls of the frame.

2. The feeding device for plate cutting according to claim 1, characterized in that: Both sides of the longitudinal beam are provided with mounting plates, and the running wheel is located between the two mounting plates; The two mounting plates of the longitudinal beam are both provided with bearing seats, and the transmission shaft passes through the bearing seats of the mounting plates of the two longitudinal beams; At one end of the longitudinal beam away from the transmission shaft, the travel wheel is installed on the bearing seat through a rotating shaft.

3. The feeding device for plate cutting according to claim 2, characterized in that: A U-shaped slot hole is formed at one end of the mounting plate away from the longitudinal beam, and the transmission shaft and the rotating shaft respectively pass through the U-shaped slot hole; The transmission shaft and the rotating shaft are both provided with wear-resistant rings, the wear-resistant rings are located in the U-shaped slot hole, and the outer wall of the wear-resistant ring is matched with the bottom of the U-shaped slot hole.

4. The feeding device for plate cutting according to claim 3, characterized in that: The transmission shaft and the rotating shaft are both provided with limiting rings, and the wear-resistant ring and the limiting ring are respectively arranged on two sides of the bearing seat.

5. The feeding device for plate cutting according to claim 1, characterized in that: The travel drive device includes a travel motor and a reduction box, the output end of the middle part of the reduction box is connected to the transmission shaft, and the input end of the upper part of the reduction box is connected to the travel motor; The diameter of the traveling wheel is greater than the height of the reduction box.

6. The feeding device for plate cutting according to claim 1, characterized in that: The lifting drive device comprises a base, a mounting seat and a lifting motor, wherein the base is arranged at the central position of the top of the walking frame; the mounting seat is arranged on the base, and the lifting motor is arranged on the outer side of the mounting seat; The mounting seat has a rectangular mounting space, and two rows of sliders are respectively arranged on two opposite sides of the mounting space; The guide frame runs through the installation space, two guide rails are respectively arranged on opposite sides of the guide frame, and a row of the sliders is slidably matched with one of the guide rails; The guide frame is provided with a vertical rack, and the output end of the lifting motor is provided with a driving gear, and the driving gear is meshed with the rack.

7. The feeding device for plate cutting according to claim 6, characterized in that: An upper limit position sensing assembly and a lower limit position sensing assembly are respectively arranged at the upper and lower parts of the outer side of the mounting seat; a lower limit position sensing plate is arranged at the top end of the guide frame, and an upper limit position sensing plate is arranged at the bottom end; the upper limit position sensing plate corresponds to the position of the upper limit position sensing assembly, and the lower limit position sensing plate corresponds to the position of the lower limit position sensing assembly; The inner wall of the mounting seat is provided with an origin position sensor, the guide frame is provided with an origin position sensing plate, and the origin position sensor corresponds to the position of the origin position sensing plate; The origin position sensing plate is located between the upper limit position sensing plate and the lower limit position sensing plate.

8. The feeding device for plate cutting according to claim 7, characterized in that: The upper limit position sensing assembly and the lower limit position sensing assembly each include two sensors, and the two sensors are spaced apart in a vertical direction.

9. The feeding device for plate cutting according to claim 7, characterized in that: The upper limit position sensing plate and the lower limit position sensing plate are both Z-shaped bending plates; The upper limit position sensing plate and the lower limit position sensing plate are arranged in mirror symmetry.

10. The feeding device for plate cutting according to claim 3, characterized in that: The frame is provided with a material unloading station, a material loading station and a material unloading station in sequence; a plurality of stacked buffer trays are respectively provided at the four corners of the top surface of the frame; A material unloading in-place sensor is arranged on a side of the frame facing away from the travel drive device, and a material unloading in-place sensor plate is arranged on the side of the travel frame slot; when the material unloading in-place sensor is blocked by the material unloading in-place sensor, there is a gap between the buffer plate and the travel wheel.

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