CN219378484U

CN219378484U - Automatic feeder and traction device

Info

Publication number: CN219378484U
Application number: CN202320475987.7U
Authority: CN
Inventors: 杨余明; 马进元; 肖正伟
Original assignee: Tangshi Jianhua Construction Materials Shanghai Co Ltd
Current assignee: Tangshi Jianhua Construction Materials Shanghai Co Ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-07-21
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses an automatic feeder and a traction device, which comprises: the driving device is used for controlling the start and stop operation of the material bearing disc; the driving device comprises a magnetic powder clutch connected with the variable frequency motor through a rotating shaft and a driving shaft connected with the magnetic powder clutch through conical teeth; the variable frequency motor drives the magnetic powder clutch to rotate through the rotating shaft, the rotating direction of the rotating shaft can be adjusted, and the change of the transmission direction of the rotating shaft and the driving shaft is realized through the conical teeth, so that the driving shaft rotates; the device is used with the automatic braking device through setting up the magnetic powder clutch, and when the automatic braking device during operation holds the charging tray and stops rotating, the magnetic powder clutch bears and exceeds rated torque and then output rotational speed reduces to 0 because of the moment grow, plays moment overload protection effect, reduces the frequent start braking of motor, prolongs motor life, and the braking is also more effective swift, more does benefit to electrical control.

Description

Automatic feeder and traction device

Technical Field

The utility model belongs to the technical field of automatic production of concrete pipe pile keel, and particularly relates to an automatic feeder and a traction device.

Background

The steel bar (Steel Bar for Prestressed Concrete, PC steel bar for short) for prestressed concrete is a prestressed steel with high technical content developed by Japan high frequency heat refining Co., ltd., in the 60 th year of the 20 th century, and the main raw material of the PC steel bar is a torsion-free cold and hot rolled wire rod. The production of high-quality PC steel bars is required to meet the requirements of good surface quality, low inclusion content, high purity, small segregation and fluctuation of the components of the steel bars, stable mechanical properties, fine grains and the like. However, when the steel bar is loaded on the tray, if the tray is fully loaded, the inertia is particularly large, so that the whole tray is difficult to drive, after the tray rotates, the traction device of the steel bar is difficult to control the tray, particularly in the working condition of cutting the PC steel bar in a fixed length, the tray is required to be frequently started and stopped and the rotation speed of the tray is strictly controlled, the motor and the connecting piece are easily damaged in the process, safety accidents are also generated in severe cases, and the rotation speed of the heavy-load tray is seriously controlled due to the discharging speed.

Disclosure of Invention

The utility model aims to provide an automatic feeder and a traction device, which are used for solving the problems that in the prior art, the automatic feeder and the traction device are difficult to drive, frequently start and stop and are large in inertia and difficult to control and stop because a material tray is fully loaded in the using process.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an automatic feeder, comprising:

the material carrying disc is arranged at the inner side of the feeder;

the driving device is connected with the material bearing disc and used for controlling the start and stop operation of the material bearing disc;

the driving device comprises a magnetic powder clutch connected with the variable frequency motor through a rotating shaft and a driving shaft connected with the magnetic powder clutch through conical teeth;

the variable frequency motor drives the magnetic powder clutch to rotate through the rotating shaft, the rotating direction of the rotating shaft can be adjusted, and the change of the transmission direction of the rotating shaft and the driving shaft is realized through the conical teeth, so that the driving shaft rotates.

As a further description of the above technical solution: the automatic braking device comprises a braking rod and a driving cylinder, wherein a connecting rod is installed on an output shaft of the driving cylinder, one end of the connecting rod is installed on the braking rod through a frame, and the end portion of the braking rod abuts against the surface of the material bearing disc.

As a further description of the above technical solution: the material bearing disc comprises a middle material placing disc and an outer guard plate, wherein the outer guard plate is arranged on the outer side of the middle material placing disc, and a protecting device is further arranged on the surface of the outer guard plate.

As a further description of the above technical solution: the protection device comprises a cylinder, a protection rod and a support, wherein the protection rod is installed at the position of an output shaft of the cylinder through the support.

As a further description of the above technical solution: one end of the material carrying disc is provided with an auxiliary device.

As a further description of the above technical solution: the driving shaft is arranged in the frame and used for driving the material carrying disc to rotate, and a variable frequency motor is further arranged on one side of the frame.

As a further description of the above technical solution: the device for detecting the tensioning degree of the steel bar is arranged in the material bearing disc and is connected with the variable frequency motor.

As a further description of the above technical solution: the auxiliary device is a ladder frame, and the height of the auxiliary device is consistent with that of the material carrying disc.

As a further description of the above technical solution: the bottom of the outer guard plate is provided with an automatic braking device which can control the rotation stopping process of the material bearing plate.

A traction device, comprising: the traction device is connected with the material carrying disc and used for calibrating the material conveying angle and comprises a compression cylinder, a compression wheel, a conveying wheel, an encoder and a driven wheel group, wherein the compression cylinder is installed above the compression wheel and used for downwards extruding the compression wheel to be close to the conveying wheel, and the encoder is installed at the middle position of the conveying wheel and used for monitoring the rotation number of turns of the conveying wheel so as to realize automatic feeding.

Compared with the prior art, the utility model has the beneficial effects that:

1. through setting up automatic brake equipment and mainly being quick to drop the blowing speed of holding disk and stopping the blowing, avoid inertia to lead to holding disk blowing speed to be difficult to drop to cause the bar loose, set up the rotation of whole holding disk of charging disk drive arrangement drive, unreel the bar, avoid draw gear to appear the phenomenon of lacing wire difficulty.

2. The magnetic powder clutch is arranged and matched with the automatic braking device to realize real-time speed change adjustment of the material tray, when the material carrying tray needs to stop rotating, the automatic braking device is started, and meanwhile, the magnetic powder clutch is powered off, so that the magnetic powder clutch temporarily stops inputting driving force; and when the moment becomes larger than the rated torque of the magnetic powder clutch due to the fact that the load of the material bearing disc is larger, the torque output is further limited, the moment overload protection function is achieved, and the fault rate of the variable frequency motor is reduced.

3. The steel bar traction speed of the steel bar traction device is consistent with the feeding speed of the charging tray through the controller, and meanwhile, the speed control signal of the variable frequency motor is adjusted through the tension degree of the charging tray when the charging tray detects the steel bar to be discharged, wherein the variable frequency motor of the charging tray is adjusted along with the feedback signals of the variable frequency motor of the traction device and the encoder, so that the steel bar is stably conveyed.

4. The traction device comprises a conveying wheel, a compression wheel and a driven wheel group to jointly form a straighter device of the steel bar, so that the steel bar with high bending degree is prevented from passing through the driven wheel group, and the reject ratio of the bottom product is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a feeder according to the present utility model;

FIG. 2 is a side view of a feeder according to the present utility model;

FIG. 3 is a cross-sectional view taken along the direction A in FIG. 2;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of an automatic brake apparatus according to the present utility model;

FIG. 6 is a schematic view of a protecting device according to the present utility model;

FIG. 7 is a schematic view of a traction device according to the present utility model;

fig. 8 is a schematic structural diagram of another embodiment of the present utility model.

In the figure: 1. a material carrying disc; 11. placing an intermediate tray; 12. an outer guard plate; 13. a protective device; 131. a cylinder; 132. a protective rod; 133. a bracket; 2. a driving device; 21. a driving shaft; 22. a magnetic powder clutch; 23. a variable frequency motor; 24. a frame; 3. an automatic braking device; 31. a brake lever; 32. a driving cylinder; 33. a connecting rod; 34. a frame; 4. an auxiliary device; 5. a traction device; 501. a compacting cylinder; 502. a pinch roller; 503. a transfer wheel; 504. an encoder; 505. a driven wheel group.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: an automatic feeder, comprising: the material carrying disc 1 is arranged at the inner side of the feeder; the driving device 2 is connected with the material carrying disc 1 and is used for controlling the start and stop operation of the material carrying disc 1; the driving device 2 comprises a magnetic powder clutch 22 connected with a variable frequency motor 23 through a rotating shaft, and a driving shaft 21 connected with the magnetic powder clutch 22 through conical teeth; the variable frequency motor 23 drives the magnetic powder clutch 22 to rotate through the rotating shaft, the rotating direction of the rotating shaft can be adjusted, and the change of the transmission direction of the rotating shaft and the driving shaft 21 is realized through the conical teeth, so that the driving shaft 21 rotates.

Referring to the drawings, the variable frequency motor 23 drives the rotating shaft to rotate, the magnetic powder clutch 22 is arranged on the outer side of the rotating shaft and rotates together with the rotating shaft, one side of the magnetic powder clutch 22 is connected with conical teeth and meshed with the conical teeth at the bottom of the driving shaft 21, one side of the driving shaft 21 is connected with the material carrying disc 1, the other side of the driving shaft 21 is arranged on the frame 24, the driving shaft 21 is vertically arranged on the frame 24 through a bearing and a bearing box, the driving shaft 21 and the conical teeth can be connected through clamping blocks and clamping grooves, and the variable frequency motor can be integrally arranged, and the transmission direction of the variable frequency motor 23 is changed through the mutual meshing of the two conical teeth; when the material carrying disc 1 is fed, the variable frequency motor 23 rotates positively and is attracted through the magnetic powder clutch 22 to provide a positive driving force for the material carrying disc 1; when feeding is completed, the variable frequency motor 23 is reversed, and is attracted through the magnetic powder clutch 22 to provide a reaction force for the material carrying disc 1, and is matched with the automatic braking device 3 to brake the material carrying disc 1.

In this embodiment, the driving device 2 can drive a heavier steel bar, and can rapidly start and brake, thereby improving the production efficiency.

Referring to fig. 5, the material receiving tray 1 is provided with an automatic braking device 3 for decelerating and stopping the rotation of the material receiving tray 1, the automatic braking device 3 includes a brake lever 31 and a driving cylinder 32, a connecting rod 33 is installed at an output shaft of the driving cylinder 32, one end of the connecting rod 33 is provided with the brake lever 31 through a frame 34, and an end of the brake lever 31 abuts against the surface of the material receiving tray 1.

In this embodiment, through setting up automatic brake device 3 and mainly reducing the blowing speed of holding tray 1 and stopping the blowing, avoid inertia to lead to holding tray 1 blowing to cause the steel bar loose too fast, set up the rotation of whole holding tray 1 of drive arrangement 2 drive, roll up the steel bar, whole holding tray 1 steel bar exit end utilizes draw gear 5 to straighten the raw materials earlier, the inside of reconnection entering holding tray 1 reduces the manpower, improved factor of safety simultaneously.

Referring to fig. 6, the material carrying tray 1 comprises a middle material carrying tray 11 and an outer guard plate 12, wherein the outer guard plate 12 is arranged on the outer side of the middle material carrying tray 11, and a protecting device 13 is further arranged on the surface of the outer guard plate 12; the guard 13 includes a cylinder 131, a guard bar 132, and a bracket 133, and the guard bar 132 is installed at an output shaft position of the cylinder 131 through the bracket 133.

In this embodiment, the outer side of the middle feeding tray 11 is connected with an outer side guard plate 12, the center is connected with a driving shaft 21, the feeding is rotated under the driving of the driving shaft 21, a protecting device 13 is connected under the outer side guard plate 12, a sliding block rocker mechanism is formed by a cylinder 131, a protecting rod 132 and a bracket 133, the outer side guard plate 12 is arranged to restrict the steel bar roll in the middle feeding tray 11, and the middle feeding tray 11 is prevented from suddenly unwinding and expanding, which causes injury to staff

The driving shaft 21 is arranged in the center of the frame 24 and used for driving the material carrying disc 1 to rotate, and a variable frequency motor 23 is further arranged on one side of the frame 24.

The device for detecting the tensioning degree of the steel bar is arranged in the material carrying disc 1 and is connected with the variable frequency motor 23. In this embodiment, the driving shaft 21 is set to the minimum rotation speed Vmin as the initial rotation speed, and a larger driving signal is applied to the variable frequency motor 23 by detecting the tension of the steel bar when the steel bar is discharged, that is, the output rotation speed of the variable frequency motor 23 is in direct proportion to the tension of the discharged steel bar.

With continued reference to fig. 1, one end of the holding pan 1 is provided with an auxiliary device 4; in this embodiment, the auxiliary device 4 is a ladder frame, and the height of the auxiliary device is consistent with that of the material carrying tray 1, so that a worker can stand above the auxiliary device 4 to assist the rotation of the material carrying tray 1, and the whole device is ensured to be within the monitoring range of the worker.

The bottom of the outer guard plate 12 is provided with the automatic braking device 3, so that the rotation stopping process of the material bearing disc 1 can be controlled, when the automatic braking device 3 works, the material bearing disc 1 stops rotating, and the magnetic powder clutch 22 bears the torque which is larger than the rated torque so as to reduce the output rotating speed to 0, thereby playing a role of protecting the torque overload.

Referring to fig. 7, a traction device includes: the traction device 5 is connected with the material carrying disc 1 and used for calibrating the material conveying angle, the traction device 5 comprises a compression cylinder 501, a compression wheel 502, a conveying wheel 503, an encoder 504 and a driven wheel group 505, the compression cylinder 501 is arranged above the compression wheel 502 and used for downwards extruding the compression wheel 502 to be close to the conveying wheel 503, and the encoder 504 is arranged at the middle position of the conveying wheel 503 and used for monitoring the rotation number of turns of the conveying wheel 503 so as to realize automatic feeding.

In this embodiment, the steel bar enters the compacting wheel 502 and the conveying wheel 503 from the inside of the material carrying disc 1 for alignment traction, and the encoder 504 detects the rotation speed to obtain the conveying speed of the steel bar, and then feeds back to the output rotation speed of the variable frequency motor 23 of the controller, and the steel bar output from the conveying wheel 503 enters the driven wheel group 505.

Working principle: the variable frequency motor 23 drives the magnetic powder clutch 22 and the conical teeth to rotate, the driving shaft 21 meshed with the conical teeth is further driven to rotate, the driving shaft 21 drives the material carrying disc 1 to rotate and feed materials, the driving cylinder 32 in the automatic braking device 3 drives the brake rod 31 and the connecting rod 33 to move, the rotation speed of the material carrying disc 1 is reduced, the material carrying disc discharging speed is reduced, the material carrying is stopped, and the steel coil loosening caused by the excessive rapid radiotherapy of the material carrying disc due to inertia is avoided; when feeding is completed, the variable frequency motor 23 is reversed, and is attracted through the magnetic powder clutch 22 to provide a reaction force for the material carrying disc 1, and is matched with the automatic braking device 3 to brake the material carrying disc 1.

Example 2

Referring to fig. 8, in the present embodiment, a variable frequency motor 23 is connected with a driving shaft 21 through a transmission chain, the variable frequency motor 23 is installed above a frame 24, an output rotating shaft of the variable frequency motor 23 and the driving shaft 21 are connected and transmitted through a sprocket 6 and the transmission chain, a magnetic powder clutch 22 is arranged at the output rotating shaft, and start-stop rotation of the feeder is realized through attraction of the magnetic powder clutch 22 and forward and reverse rotation of the variable frequency motor 23.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An automatic feeder, characterized in that: comprising the following steps:

the material carrying disc (1) is arranged at the inner side of the feeder;

the driving device (2) is connected with the material bearing disc (1) and used for controlling the start and stop operation of the material bearing disc (1);

the driving device (2) comprises a magnetic powder clutch (22) connected with a variable frequency motor (23) through a rotating shaft, and a driving shaft (21) connected with the magnetic powder clutch (22) through conical teeth;

the variable frequency motor (23) drives the magnetic powder clutch (22) to rotate through the rotating shaft, the rotating direction of the rotating shaft can be adjusted, and the change of the transmission direction of the rotating shaft and the driving shaft (21) is realized through the conical teeth, so that the driving shaft (21) rotates.

2. An automatic feeder according to claim 1, wherein: the driving device (2) is arranged at the bottom of the material carrying disc (1).

3. An automatic feeder according to claim 1, wherein: the automatic braking device is characterized in that an automatic braking device (3) is arranged on the outer side of the material carrying disc (1) and used for decelerating and stopping the rotation of the material carrying disc (1), the automatic braking device (3) comprises a braking rod (31) and a driving cylinder (32), an extending rod of the driving cylinder (32) is connected with a connecting rod (33), the connecting rod (33) is arranged on a frame, the other end of the connecting rod is connected with the braking rod (31) to form a four-bar mechanism, and a braking block is arranged at the end part of the braking rod (31) and propped against the surface of the material carrying disc (1).

4. An automatic feeder according to claim 1, wherein: the material carrying disc (1) comprises a middle material carrying disc (11) and an outer guard plate (12), wherein the outer guard plate (12) is arranged on a frame at the outer side of the middle material carrying disc (11), and a protecting device (13) is further arranged above the outer guard plate (12).

5. An automatic feeder according to claim 4, wherein: the protection device (13) comprises a cylinder (131), a protection rod (132) and a bracket (133), wherein the protection rod (132) is connected with an extension rod of the cylinder (131) through the bracket (133).

6. An automatic feeder according to claim 1, wherein: one end of the material carrying disc (1) is provided with an auxiliary device (4).

7. An automatic feeder according to claim 6, wherein: the auxiliary device (4) is a ladder frame, and the height of the auxiliary device is consistent with that of the material carrying disc (1).

8. An automatic feeder according to claim 1, wherein: the driving device (2) comprises a driving shaft (21), the driving shaft (21) is used for supporting and driving the material carrying disc (1) to rotate, the driving shaft (21) is installed in a frame (24), a variable frequency motor (23) is further installed in the frame (24), and an output shaft of the variable frequency motor (23) is in transmission connection with the driving shaft (21) through a speed reducer and a magnetic powder clutch through a chain.

9. An automatic feeder according to claim 1, wherein: the steel bar outlet of the material bearing disc (1) is provided with a device for detecting the tensioning degree of the steel bar, the device is fed back to a controller, and the speed regulation of the variable frequency motor (23) is realized through the controller.

10. A traction device, characterized by: the traction device is suitable for the feeder of any one of the preceding claims 1-9, comprising:

draw gear (5), be connected with holding pan (1), calibrate material conveying angle, draw gear (5) are including compressing tightly cylinder (501), pinch roller (502), transfer wheel (503), encoder (504) and driven wheelset (505), compressing tightly cylinder (501) are installed the top of pinch roller (502), are used for the downward extrusion pinch roller (502) are close to transfer wheel (503), encoder (504) are installed in the axis of rotation of pinch roller (502), transfer wheel (503) are continuous with inverter motor's output shaft through axle, chain, speed reducer.