Multifunctional factory material carrying route identification device
By designing a multi-functional factory material handling route marking device that integrates weighing, indicator lights and motors, the problem that existing devices cannot actively judge the material status and indicate the correct route, and achieve rapid and accurate material transportation and stability of material quality.
Patent Information
- Application Number
- CN202510313886.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-06-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing factory material handling route identification device cannot actively judge the material status and cannot independently indicate the correct delivery route to staff. There are limitations and it is difficult to meet the needs of automation and informatization development.
A multi-functional factory material handling route marking device is designed, including weighing, two-color indicator lights, monochrome indicator lights, motors and gates. The weight of the material is detected by weighing, the indicator lights and motors are controlled, and the correct transportation direction and path are automatically indicated.
It realizes the rapid and accurate transportation of materials to designated locations, improves material handling efficiency, ensures the stability of material quality, avoids path errors and time waste, and improves the reliability of the production process.
Smart Images

Figure CN120164394A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of factory route identification, and particularly relates to a multifunctional factory material handling route identification device. Background Art
[0002] In modern factory production, material handling is frequent and complex. Traditional handling planning relies on manual experience and lacks intuitiveness and flexibility. With the development of automation and informatization, higher requirements are imposed on the planning and management of material handling routes.
[0003] After retrieval, a Chinese patent application with the publication number of CN207134060U discloses a multifunctional factory material handling route display device, which includes a device bottom plate, a map display board, a route identification rope, an inflection point suction piece, a starting and ending point suction piece, mounting holes, an electronic display fixing plate, and a whiteboard, and can clearly display the material handling route in the factory for easy modification.
[0004] The above device cannot actively judge the material status during application, cannot independently indicate the correct route for the staff, and has limitations in use. There is an urgent need to design a multifunctional factory material handling route identification device to solve the above problems. Summary of the Invention
[0005] Based on the technical problem that the existing device cannot actively indicate the route, the present invention proposes a multifunctional factory material handling route identification device.
[0006] A multifunctional factory material handling route identification device proposed by the present invention includes a base, a bracket, and a sign. The bracket is fixedly connected to one side of the top of the base, and the sign is fixedly connected to the top of the bracket. A weighing scale is fixedly connected to the middle position of the top of the base. A feeding trough is opened on one side of the top of the base, and a discharging trough is opened on the side of the top of the base away from the feeding trough. A control box is fixedly connected to the top of the base. A guide rail is fixedly connected to the top of the base near the discharging trough. A gate is slidably connected inside the guide rail. A rack is fixedly connected to the side of the gate away from the guide rail. A sheath is fixedly connected to the top of the base near the rack. The rack is slidably connected inside the sheath. A motor bracket is fixedly connected to the top of the sheath. A motor is fixedly connected inside the motor bracket. The output end of the motor is drivingly connected to a gear, and the gear is meshingly connected to one side of the top of the rack. An arc-shaped slide rail is fixedly connected to the middle of the side of the sign near the gate. Three monochromatic indicator lights are slidably connected to one side of the arc-shaped slide rail. A two-color indicator light is horizontally fixed to the side of the sign near the arc-shaped slide rail, and one end of the two-color indicator light is at the center of the arc of the arc-shaped slide rail.
[0007] Preferably, cameras are fixedly connected to the tops of both sides of the sign.
[0008] Preferably, a display screen is fixedly connected to the bottom of the signboard near the side of the monochromatic indicator light.
[0009] Preferably, a keyhole is opened at the middle position of the top of the gate, a horizontally arranged crossbeam is fixedly connected to the top of the guide rail, a suspension bracket is fixedly connected to one end of the crossbeam away from the guide rail, and a telescopic locking device adapted to the keyhole is fixedly connected to the bottom of the suspension bracket near the side of the gate.
[0010] Preferably, a normally closed travel switch is fixedly connected to the bottom of the crossbeam, a pressing member adapted to the normally closed travel switch is fixedly connected to the top of the gate, the pressing member is located directly below the normally closed travel switch, and a group of opposed light grids are fixedly connected to the inner walls on both sides of the blanking chute.
[0011] Preferably, lamp sockets are fixedly connected to the sides of the three monochromatic indicator lights close to the signboard, and the three lamp sockets are all slidably connected to the side of the arc-shaped slide rail away from the signboard.
[0012] Preferably, a first threaded sleeve is fixedly connected to one side of the lamp socket, a positioning screw is threadedly connected to the inside of the first threaded sleeve, a pressing block is fixedly connected to one end of the positioning screw close to the signboard, and a positioning knob is fixedly connected to the other end of the positioning screw away from the signboard.
[0013] Preferably, a hook seat is fixedly connected to the top of the bracket, a hook groove is opened at the top of the hook seat, two mounting members are fixedly connected to the middle of the side of the signboard close to the hook seat, hooks are fixedly connected to the sides of the two mounting members away from the signboard, the hooks are clamped inside the hook groove, a first buffer pad is fixedly connected to the side of the hook close to the signboard, the first buffer pad fits against the inner wall of one side of the hook seat, and a second buffer pad is fixedly connected to the side of the signboard close to the hook seat, and the second buffer pad does not contact the side of the hook seat close to the signboard.
[0014] Preferably, evenly distributed rollers are rotatably connected to the inner wall of the bottom of the hook groove, and the bottom of the hook is in contact with the outer wall of the roller.
[0015] Preferably, a support crossbar is fixedly connected to the middle of the bracket, a second threaded sleeve is fixedly connected to the middle of the side of the support crossbar away from the signboard, an adjusting screw is threadedly connected to the inside of the second threaded sleeve, an adjusting knob is fixedly connected to the end of the adjusting screw away from the signboard, a coupling is fixedly connected to the end of the adjusting screw close to the signboard, the adjusting screw is rotatably connected to a housing through the coupling, and a third buffer pad is fixedly connected to the side of the housing close to the signboard, and the third buffer pad fits against the side of the signboard.
[0016] Compared with the prior art, the present invention provides a multifunctional factory material handling route marking device, which has the following beneficial effects:
[0017] 1. The multifunctional factory material handling route marking device detects the weight information of the material through the weighing scale, two-color indicator light, single-color indicator light, motor and gate. The weighing scale feeds back the weight information to the control box through the signal line, judges the transportation direction of the material according to the material weight, then controls the two-color indicator light in the corresponding direction to turn on the green light, controls the other two-color indicator lights to turn on the red light, controls the motor to drive the gate to rise, and the staff transports the material through the gate and leaves the base through the discharge chute, and transports the material in the direction indicated by the green two-color indicator light, avoiding the path errors and time waste that may be caused by the staff blindly transporting the material, enabling the material to be quickly and accurately transported to the designated location, thereby improving the material handling efficiency in the entire production process. If the material does not meet the preset weight, the single-color indicator light turns on the red light, and the staff transports the material back and reloads the material, which helps to ensure the stable quality of the applicable material in the production process and prevent the subsequent production process from being affected by the unqualified material weight.
[0018] 2. The multifunctional factory material handling route marking device is equipped with a normally closed travel switch, a telescopic lock, a lock hole, a pressing part and an opposed grating. The normally closed travel switch on the crossbeam cooperates with the pressing part on the top of the gate. When the gate is closed in place, the normally closed travel switch is triggered to conduct, the telescopic lock is connected to the power supply, and the gate is locked to ensure the stability and safety of the gate in the closed state and prevent accidental falling. When the staff transports the material away through the discharge chute, it passes through the opposed grating, and the opposed grating feeds back the signal to the control box. At this time, the telescopic lock unlocks the gate, and the motor controls the gate to fall again for the next material transportation. Through the coordinated work of the telescopic lock and the opposed grating, accurate control of the gate position and material discharging is achieved, ensuring the accuracy and reliability of the material handling process.
[0019] 3. The multifunctional factory material handling route marking device is equipped with a hook, a hook seat, a roller, an adjusting screw, a coupling and a housing. The hook groove on the hook seat at the top of the bracket cooperates with the hook on the sign, facilitating the installation and disassembly of the sign. The roller enables the hook to slide smoothly inside the hook groove, facilitating the adjustment of the installation position of the sign and improving the operation convenience of the device. The housing and the third buffer pad form a support at the bottom of the sign. In combination with the connection between the hook and the hook seat, the sign is made more stable. By driving the adjusting screw to rotate through the adjusting knob, the housing and the third buffer pad are driven to push against or away from the bottom of the sign, realizing fine adjustment of the angle of the sign. During this process, the sign rotates around the hook as the axis, the second buffer pad contacts the hook seat, and the pressure causes the second buffer pad to deform. The housing can rotate relative to the adjusting screw through the coupling to adapt to the angle change process of the sign. Description of the Drawings
[0020] Figure 1Structural schematic diagram of a multifunctional factory material handling route identification device proposed by the present invention;
[0021] Figure 2 Front view structural schematic diagram of a multifunctional factory material handling route identification device proposed by the present invention;
[0022] Figure 3 Structural schematic diagram of the gate and guide rail of a multifunctional factory material handling route identification device proposed by the present invention;
[0023] Figure 4 Structural schematic diagram of the monochromatic indicator light and arc-shaped slide rail of a multifunctional factory material handling route identification device proposed by the present invention;
[0024] Figure 5 Rear view structural schematic diagram of a multifunctional factory material handling route identification device proposed by the present invention;
[0025] Figure 6 Assembly structural schematic diagram of the hook and hook seat of a multifunctional factory material handling route identification device proposed by the present invention;
[0026] Figure 7 Structural schematic diagram of the housing and support cross bar of a multifunctional factory material handling route identification device proposed by the present invention;
[0027] Figure 8 Structural schematic diagram of the base and opposed light grating of a multifunctional factory material handling route identification device proposed by the present invention. Detailed implementation manners
[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.
[0029] Refer to Figure 1-8, A multifunctional factory material handling route identification device, comprising a base 1, a bracket 2 and an identification plate 3. The bracket 2 is fixedly connected to one side of the top of the base 1, and the identification plate 3 is fixedly connected to the top of the bracket 2. A weighing scale 4 is fixedly connected to the middle position of the top of the base 1. A feeding groove 5 is provided on one side of the top of the base 1, and a discharging groove 6 is provided on the side of the top of the base 1 away from the feeding groove 5. A control box 7 is fixedly connected to the top of the base 1. A guide rail 12 is fixedly connected to the top of the base 1 near the discharging groove 6. A gate 13 is slidably connected inside the guide rail 12. A rack 23 is fixedly connected to the side of the gate 13 away from the guide rail 12. A sheath 25 is fixedly connected to the top of the base 1 near the rack 24. The rack 23 is slidably connected inside the sheath 25. A motor bracket 14 is fixedly connected to the top of the sheath 25. A motor 15 is fixedly connected inside the motor bracket 14. The output end of the motor 15 is drivingly connected to a gear 24. The gear 24 is meshed and connected to one side of the top of the rack 23. In the middle of the side of the identification plate 3 near the gate 13, an arc-shaped slide rail 22 is fixedly connected. Three monochromatic indicator lights 10 are slidably connected to one side of the arc-shaped slide rail 22. A two-color indicator light 9 is horizontally fixed to the side of the identification plate 3 near the arc-shaped slide rail 22. One end of the two-color indicator light 9 is located at the center of the arc of the arc-shaped slide rail 22.
[0030] In the present invention, cameras 11 are fixedly connected to the tops of both sides of the identification plate 3. The cameras 11 are installed at the tops of both sides of the identification plate 3, and can perform real-time shooting and monitoring of the material handling process, transmit the image information to the control system, realize the visual monitoring of the material handling process, facilitate the timely discovery of abnormal situations, and improve production safety and management efficiency.
[0031] In the present invention, a display screen 8 is fixedly connected to the bottom of the side of the identification plate 3 near the monochromatic indicator lights 10. The display screen 8 is connected to the control box 7 through a signal line, and is used to receive and display various material information from the control system.
[0032] In the present invention, a lock hole 18 is provided at the middle position of the top of the gate 13. A horizontally arranged cross beam 19 is fixedly connected to the top of the guide rail 12. A suspension bracket 20 is fixedly connected to the end of the cross beam 19 away from the guide rail 12. A telescopic locking device 21 adapted to the lock hole 18 is fixedly connected to the bottom of the side of the suspension bracket 20 near the gate 13. The lock hole 18 at the top of the gate 13 cooperates with the telescopic locking device 21 at the bottom of the suspension bracket 20 to realize the locking of the gate 13.
[0033] In the present invention, a normally closed travel switch 17 is fixedly connected to the bottom of the cross beam 19, a pressing member 16 adapted to the normally closed travel switch 17 is fixedly connected to the top of the gate 13, the pressing member 16 is located directly below the normally closed travel switch 17, the inner walls on both sides of the material chute 6 are fixedly connected with the same group of opposed light grids 45, the normally closed travel switch 17 on the cross beam 19 cooperates with the pressing member 16 on the top of the gate 13, when the gate 13 is closed in place, the normally closed travel switch 17 is triggered to conduct, the telescopic lock 21 is connected to the power supply, and the gate 13 is locked to ensure the stability and safety of the gate 13 in the closed state, preventing accidental falling. When the staff transports materials away through the material chute 6 and passes through the opposed light grids 45, the opposed light grids 45 feedback signals to the control box 7. At this time, the telescopic lock 21 unlocks the gate 13, and the motor 15 controls the gate 13 to fall again for the next material transportation. Through the collaborative work of the telescopic lock 21 and the opposed light grids 45, the accurate control of the position of the gate 13 and the material feeding is realized, ensuring the accuracy and reliability of the material handling process.
[0034] In the present invention, lamp holders 26 are fixedly connected to one side of the three monochromatic indicator lights 10 close to the sign board 3, and the three lamp holders 26 are all slidably connected to the side of the arc-shaped slide rail 22 away from the sign board 3. The monochromatic indicator lights 10 are slidably connected to the arc-shaped slide rail 22 through the lamp holders 26, and the position can be adjusted according to needs to improve the flexibility and accuracy of information display.
[0035] In the present invention, a first threaded sleeve 27 is fixedly connected to one side of the lamp holder 26, a positioning screw rod 28 is threadedly connected to the inside of the first threaded sleeve 27, a pressing block 30 is fixedly connected to one end of the positioning screw rod 28 close to the sign board 3, and a positioning knob 29 is fixedly connected to one end of the positioning screw rod 28 away from the sign board 3. By driving the positioning screw rod 28 to rotate through the positioning knob 29, the pressing block 30 is moved closer to or farther away from the sign board 3, thereby fixing or adjusting the position of the lamp holder 26, facilitating the precise adjustment and fixing of the position of the two-color indicator light 9, ensuring the accurate indication of the material handling direction, and improving the practicality of the device.
[0036] In the present invention, a hook seat 31 is fixedly connected to the top of the bracket 2. A hook groove 37 is formed in the top of the hook seat 31. Two mounting members 36 are fixedly connected to the middle of the side of the identification plate 3 close to the hook seat 31. A hook 32 is fixedly connected to the side of the two mounting members 36 away from the identification plate 3. The hook 32 is clamped inside the hook groove 37. A first buffer pad 39 is fixedly connected to the side of the hook 32 close to the identification plate 3. The first buffer pad 39 fits against the inner wall of one side of the hook seat 31. A second buffer pad 40 is fixedly connected to the side of the identification plate 3 close to the hook seat 31. The second buffer pad 40 does not contact the side of the hook seat 31 close to the identification plate 3. The hook groove 37 on the hook seat 31 at the top of the bracket 2 cooperates with the hook 32 on the identification plate 3, facilitating the installation and disassembly of the identification plate 3. The first buffer pad 39 reduces the wear between the hook 32 and the inner wall of the hook groove 37.
[0037] In the present invention, roller cylinders 38 evenly distributed are rotatably connected to the inner wall of the bottom of the hook groove 37. The bottom of the hook 32 contacts the outer wall of the roller cylinder 38, enabling the hook 32 to smoothly slide inside the hook groove, facilitating the adjustment of the installation position of the identification plate 3 and improving the operation convenience of the device.
[0038] In the present invention, a support cross bar 33 is fixedly connected to the middle of the bracket 2. A second threaded sleeve 42 is fixedly connected to the middle of the side of the support cross bar 33 away from the identification plate 3. An adjusting screw 44 is threadedly connected inside the second threaded sleeve 42. One end of the adjusting screw 44 away from the identification plate 3 is fixedly connected to an adjusting knob 35. One end of the adjusting screw 44 close to the identification plate 3 is fixedly connected to a coupling 41. The adjusting screw 44 is rotatably connected to a housing 34 through the coupling 41. A third buffer pad 43 is fixedly connected to the side of the housing 34 close to the identification plate 3. The third buffer pad 43 fits against the side of the identification plate 3. The housing 34 and the third buffer pad 43 form a support at the bottom of the identification plate 3. Cooperating with the connection between the hook 32 and the hook seat 31, the identification plate 3 is made more stable. The third buffer pad 43 prevents the identification plate 3 from being worn. By driving the adjusting screw 44 to rotate through the adjusting knob 35, the housing 34 and the third buffer pad 43 are driven to push against or away from the bottom of the identification plate 3, realizing fine adjustment of the angle of the identification plate 3. During this process, the identification plate 3 rotates with the hook 32 as the axis. The second buffer pad 40 contacts the hook seat 31, and the pressure causes the second buffer pad 40 to deform. The second buffer pad 40 reduces the wear between the hook seat 31 and the outer wall of the identification plate 3. The housing 34 can rotate relative to the adjusting screw 44 through the coupling 41 to adapt to the angle change process of the identification plate 3.
[0039] In use, a basic identification framework is constructed by the base 1, the bracket 2 and the identification sign 3. When handling materials, the materials are transported to the weighing platform 4 above the base 1 through the loading chute 5. The weighing platform 4 detects the weight information of the materials and feeds back the weight information to the control box 7 through a signal line. A controller is arranged inside the control box 7. The material weight is preset through the controller. The controller judges the transportation direction of the materials according to the material weight, then controls the green light of the two-color indicator light 9 in the corresponding direction to turn on, controls the red light of the other two-color indicator lights 9 to turn on, controls the motor 14 to drive the gear 24 to rotate, and then drives the gate 13 to rise through the rack 23. The staff handles the materials through the gate 13 and leaves the base 1 through the unloading chute 6, and transports the materials in the direction indicated by the green two-color indicator light 9, avoiding the path errors and time waste that may be caused by the staff blindly handling the materials, enabling the materials to be quickly and accurately transported to the designated location, thereby improving the material handling efficiency in the entire production process. If the material does not meet the preset weight, the single-color indicator light 10 turns on the red light, and the staff transports the materials back and reloads the materials, which helps to ensure the stable quality of the applicable materials in the production process and prevent the subsequent production processes from being affected by the unqualified material weight. The indication direction of the two-color indicator light 9 can be adjusted through the arc-shaped slide rail 22, which is convenient for flexibly adjusting the indication direction according to the terrain.
[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A multifunctional factory material handling route identification device, comprising a base (1), a bracket (2) and an identification plate (3), wherein the bracket (2) is fixedly connected to one side of the top of the base (1), and the identification plate (3) is fixedly connected to the top of the bracket (2), characterized in that: A weighing scale (4) is fixedly connected to the middle position of the top of the base (1), a loading trough (5) is provided on one side of the top of the base (1), a discharging trough (6) is provided on the side of the top of the base (1) away from the loading trough (5), a control box (7) is fixedly connected to the top of the base (1), a guide rail (12) is fixedly connected to the top of the base (1) on the side close to the discharging trough (6), a gate (13) is slidably connected inside the guide rail (12), a rack (23) is fixedly connected to the side of the gate (13) away from the guide rail (12), a sheath (25) is fixedly connected to the top of the base (1) on the side close to the rack (24), and the rack (23) is slidably connected to the sheath ( 25), the top of the sheath (25) is fixedly connected to a motor frame (14), the inside of the motor frame (14) is fixedly connected to a motor (15), the output end of the motor (15) is transmission-connected to a gear (24), the gear (24) is meshingly connected to one side of the top of the rack (23), the middle of the signboard (3) close to the gate (13) is fixedly connected to an arc-shaped slide rail (22), one side of the arc-shaped slide rail (22) is slidably connected to three single-color indicator lights (10), and one side of the signboard (3) close to the arc-shaped slide rail (22) is horizontally fixed to a two-color indicator light (9), one end of the two-color indicator light (9) is located at the center of the arc-shaped slide rail (22).
2. A multifunctional factory material handling route identification device according to claim 1, characterized in that: Cameras (11) are fixedly connected to the tops of both sides of the identification plate (3).
3. A multifunctional factory material handling route identification device according to claim 1, characterized in that: A display screen (8) is fixedly connected to the bottom of the identification plate (3) on the side close to the monochrome indicator light (10).
4. A multifunctional factory material handling route identification device according to claim 1, characterized in that: A lock hole (18) is provided in the middle of the top of the gate (13); a horizontally arranged crossbeam (19) is fixedly connected to the top of the guide rail (12); a suspension bracket (20) is fixedly connected to the end of the crossbeam (19) away from the guide rail (12); and a telescopic lock (21) adapted to the lock hole (18) is fixedly connected to the bottom of the suspension bracket (20) on the side close to the gate (13).
5. A multifunctional factory material handling route identification device according to claim 4, characterized in that: The bottom of the cross beam (19) is fixedly connected to a normally closed travel switch (17), the top of the gate (13) is fixedly connected to a pressing piece (16) adapted to the normally closed travel switch (17), the pressing piece (16) is located directly below the normally closed travel switch (17), and the inner walls on both sides of the feed chute (6) are fixedly connected to the same group of opposing gratings (45).
6. A multifunctional factory material handling route identification device according to claim 1, characterized in that: The three single-color indicator lights (10) are fixedly connected to a lamp holder (26) on one side close to the identification plate (3), and the three lamp holders (26) are slidably connected to a side of the arc-shaped slide rail (22) away from the identification plate (3).
7. A multifunctional factory material handling route marking device according to claim 6, characterized in that: A first threaded sleeve (27) is fixedly connected to one side of the lamp holder (26); a positioning screw (28) is connected to the internal thread of the first threaded sleeve (27); a pressing block (30) is fixedly connected to the end of the positioning screw (28) close to the identification plate (3); and a positioning knob (29) is fixedly connected to the end of the positioning screw (28) away from the identification plate (3).
8. The multifunctional factory material handling route marking device according to claim 1, characterized in that: The top of the bracket (2) is fixedly connected to a hook seat (31), the top of the hook seat (31) is provided with a hook groove (37), the middle part of the identification plate (3) close to the hook seat (31) is fixedly connected to two mounting members (36), the two mounting members (36) are fixedly connected to a hook (32) on the side away from the identification plate (3), the hook (32) is snapped into the inside of the hook groove (37), the side of the hook (32) close to the identification plate (3) is fixedly connected to a first buffer pad (39), the first buffer pad (39) is attached to the inner wall of one side of the hook seat (31), the side of the identification plate (3) close to the hook seat (31) is fixedly connected to a second buffer pad (40), the second buffer pad (40) does not contact the side of the hook seat (31) close to the identification plate (3).
9. A multifunctional factory material handling route marking device according to claim 8, characterized in that: The inner wall of the bottom of the hook groove (37) is rotatably connected with rollers (38) that are evenly distributed, and the bottom of the hook (32) is in contact with the outer wall of the roller (38).
10. A multifunctional factory material handling route marking device according to claim 9, characterized in that: The middle part of the bracket (2) is fixedly connected to a supporting cross bar (33), the middle part of the supporting cross bar (33) on the side away from the identification plate (3) is fixedly connected to a second threaded sleeve (42), the internal thread of the second threaded sleeve (42) is connected to an adjusting screw (44), the end of the adjusting screw (44) away from the identification plate (3) is fixedly connected to an adjusting knob (35), the end of the adjusting screw (44) close to the identification plate (3) is fixedly connected to a coupling (41), the adjusting screw (44) is rotatably connected to a housing (34) through the coupling (41), the side of the housing (34) close to the identification plate (3) is fixedly connected to a third buffer pad (43), and the third buffer pad (43) is attached to the side of the identification plate (3).
Citation Information
Patent Citations
Multi -functional materials handling of mill route display device
CN207134060U