CN211664365U

CN211664365U - Automatic speed-regulating unwinding device

Info

Publication number: CN211664365U
Application number: CN202020131880.7U
Authority: CN
Inventors: 李东建; 王猛
Original assignee: Hebei Shenke Magnetic Materials Co ltd
Current assignee: Hebei Shenke Magnetic Materials Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-13
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to an automatic speed governing unwinding device, which comprises a base, rotate the pivot of being connected with the base, fix the charging tray in pivot one end, establish the fixed cover on the charging tray, establish the silo under the charging tray, establish the guide way that the flow direction of material set up on the silo and along, establish being used for on the base to drive pivot pivoted drive arrangement, establish the first pressure sensitive sensor who whether has the material in being used for detecting the guide way in the guide way, establish the control system who is used for adjusting the drive arrangement rotational speed that is used for detecting whether there is the second pressure sensitive sensor of material in the silo and is connected with drive arrangement in being used for detecting the silo, first pressure sensitive sensor and second pressure sensitive sensor all are connected with control system. The utility model is used for the dynamic feed in magnetism material area can the automatic adjustment feed speed, avoids the magnetism material area to be broken by the drawing.

Description

Automatic speed-regulating unwinding device

Technical Field

The utility model belongs to the technical field of the technique of automatic feeder equipment and specifically relates to an automatic speed governing unwinding device is related to.

Background

The magnetic material can react to a magnetic field in a certain way, and is widely applied to the fields of sensors, novel information materials, high-technology information materials, sensor sensing terminals and the like.

The process from the magnetic material to the product mainly comprises the working procedures of smelting, tape making, iron core making, finished product making and the like, wherein the magnetic material tape after tape making is coiled, and needs to be cut firstly when subsequent production is carried out. The existing feeding equipment mostly adopts constant-speed feeding, the feeding speed is gradually reduced along with the reduction of the diameter of a material roll, and the magnetic material belt has the potential risk of being broken. To avoid this, a faster feeding speed is generally set in the previous period, but this may lead to the magnetic material belt accumulating in the trough and also to the risk of breaking during pulling.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an automatic speed governing unwinding device, this unwinding device can automatic adjustment feed speed, avoids the magnetism material area to be broken.

The above object of the present invention can be achieved by the following technical solutions:

an automatic speed regulation unwinding device includes:

a base;

the rotating shaft is rotatably connected with the base;

the material tray is fixed at one end of the rotating shaft;

the fixed sleeve is arranged on the material tray;

the material groove is arranged right below the material tray;

the guide groove is arranged on the material groove and is arranged along the flowing direction of the material;

the driving device is arranged on the base and used for driving the rotating shaft to rotate;

the first pressure-sensitive sensor is arranged in the guide groove and used for detecting whether materials exist in the guide groove;

the second pressure-sensitive sensor is arranged in the material groove and used for detecting whether materials exist in the material groove; and

the control system is connected with the driving device and is used for adjusting the rotating speed of the driving device;

wherein, the first pressure-sensitive sensor and the second pressure-sensitive sensor are both connected with the control system.

Through adopting above-mentioned technical scheme, first pressure sensitive sensor and second pressure sensitive sensor can be simultaneously to control system feedback signal, make control system can be according to the signal adjustment drive arrangement's that feeds back rotational speed to change the slew velocity of charging tray and fixed cover, the slew velocity of charging tray and fixed cover changes the back, and feed speed also can be along with changing. Therefore, the requirements of subsequent cutting procedures can be met, a large amount of accumulation can not be generated, and the possibility that the magnetic material belt is broken by pulling is fundamentally avoided.

In a preferred embodiment of the present invention: the cross-sectional area of the retaining sleeve tends to decrease in the direction away from the tray.

Through adopting above-mentioned technical scheme, can be with the easier cover of material book to the fixed cover.

In a preferred embodiment of the present invention: a plurality of long grooves are uniformly formed in the circumferential direction of the fixed sleeve and are parallel to the axis of the fixed sleeve;

and one end of the elongated slot, which is far away from the material tray, is communicated with the end surface of the fixed sleeve.

By adopting the technical scheme, the fixing sleeve is divided into a plurality of parts by the long groove, so that when the material roll is sleeved on the fixing sleeve, the parts of the fixing sleeve can slightly deform, the mounting difficulty of the material roll can be reduced, the friction force between the material roll and the fixing sleeve can be increased, and the possibility of sliding of the material roll in the rotating process is reduced.

In a preferred embodiment of the present invention: the material tray is provided with a plurality of lightening holes which are uniformly arranged on the material tray by taking the axis of the material tray as a reference.

By adopting the technical scheme, the weight of the material tray can be reduced through the lightening holes, so that the load of the driving device is reduced.

In a preferred embodiment of the present invention: the driving device comprises a speed reducer arranged on the base and a motor arranged on the speed reducer;

and an output shaft of the speed reducer is connected with the rotating shaft.

Through adopting above-mentioned technical scheme, drive arrangement comprises motor and speed reducer, and the technology of motor and speed reducer is mature, can satisfy the production needs with a lower use cost.

In a preferred embodiment of the present invention: the control system comprises a programmable controller and a frequency converter connected with the programmable controller;

the output end of the frequency converter is connected with the input end of the motor;

the first pressure-sensitive sensor and the second pressure-sensitive sensor are both connected with the programmable controller.

By adopting the technical scheme, the frequency converter can adjust the frequency of the output current, thereby realizing the change of the rotating speed of the motor.

In a preferred embodiment of the present invention: the driving device comprises a precision servo speed reducer and a servo motor connected with the precision servo speed reducer;

and an output shaft of the precision servo speed reducer is connected with the rotating shaft.

Through adopting above-mentioned technical scheme, come the slew velocity of control pivot, charging tray and fixed cover through servo motor, servo motor's motion accuracy is higher, can realize more accurate feed speed adjustment.

In a preferred embodiment of the present invention: the control system comprises a programmable controller and a servo amplifier connected with the programmable controller;

the output end of the servo amplifier is connected with the input end of the servo motor;

By adopting the technical scheme, the programmable controller realizes the accurate control of the servo motor through the servo amplifier.

To sum up, the utility model discloses a beneficial technological effect does:

1. the first pressure-sensitive sensor and the second pressure-sensitive sensor can feed back signals to the control system at the same time, so that the control system can adjust the rotating speed of the driving device according to the fed-back signals, the rotating speed of the material tray and the fixed sleeve is changed, and the feeding speed can be changed along with the change of the rotating speed of the material tray and the fixed sleeve. Therefore, the requirements of subsequent cutting procedures can be met, a large amount of accumulation can not be generated, and the possibility that the magnetic material belt is broken by pulling is fundamentally avoided.

2. The fixing sleeve can be divided into a plurality of parts by the long groove on the fixing sleeve, so that when a material roll is sleeved on the fixing sleeve, the parts of the fixing sleeve can be slightly deformed, on one hand, the mounting difficulty of the material roll can be reduced, on the other hand, the friction force between the material roll and the fixing sleeve can be increased, and the possibility that the material roll slides in the rotating process is reduced.

3. The lightening holes on the material tray can reduce the weight of the material tray, thereby reducing the load of the driving device and enabling the driving device to quickly respond to the instruction issued by the control system.

Drawings

Fig. 1 is a schematic structural diagram provided by an embodiment of the present invention.

Fig. 2 is another schematic structural diagram provided in the embodiment of the present invention.

In the figure, 11, a base, 12, a rotating shaft, 13, a material tray, 14, a fixing sleeve, 15, a material groove, 16, a guide groove, 17, a driving device, 21, a first pressure-sensitive sensor, 22, a second pressure-sensitive sensor, 23, a control system, 131, a lightening hole, 141, a long groove, 171, a speed reducer, 172, a motor, 173, a precision servo speed reducer, 174, a servo motor, 231, a programmable controller, 232, a frequency converter, 233 and a servo amplifier.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an automatic speed governing unwinding device mainly comprises base 11, pivot 12, charging tray 13, fixed cover 14, silo 15, guide way 16 and drive arrangement 17 etc. and the device's main part is base 11, and pivot 12 rotates with base 11 to be connected, can rotate around its self axis under the effect of external force.

The charging tray 13 is fixed on the rotating shaft 12, the fixed sleeve 14 is fixed on the charging tray 13, the charging tray and the fixed sleeve can rotate along with the rotation of the rotating shaft 12, and the angular velocity and the linear velocity of the charging tray, the charging tray and the fixed sleeve are the same and different in the rotating process.

A trough 15 is placed under the tray 13, and the magnetic material strip falling from the tray 13 firstly falls into the trough 15. The trough 15 is further fixed with a guide groove 16, and the guide groove 16 faces the material flowing direction, namely the flowing direction of the magnetic material belt from the trough 15.

The driving device 17 is installed on the base 11, and an output end thereof is connected with the rotating shaft 12 for driving the rotating shaft 12 to rotate.

The driving device 17 may be composed of a speed reducer 171 and a motor 172, the speed reducer 171 is mounted on the base 11, and the motor 172 is mounted on the speed reducer 171, and an output end thereof is connected to an input end of the speed reducer 171. The output end of the speed reducer 171 is connected to the rotating shaft 12.

The rotation speed of the motor 172 is adjusted by the control system 23, the control system 23 is composed of a programmable controller 231 and a frequency converter 232, the programmable controller 231 uses a PLC, and a programmed program is stored in the programmable controller 231. The control end of the programmable controller 231 is connected to the frequency converter 232, and is configured to send an instruction to the frequency converter 232.

The inverter 232 is connected to an external power source, and can adjust the frequency of the ac power input to the motor 172. The frequency of the general industrial electricity is 50hz, and the output rotation speed of the motor 172 can be changed when the frequency is changed, and the lower the frequency of the input alternating current is, the lower the output rotation speed of the motor 172 is.

Referring to fig. 2, the driving device 17 may further include a precision servo reducer 173 and a servo motor 174, wherein the precision servo reducer 173 is fixedly mounted on the base 11, the servo motor 174 is mounted on the precision servo reducer 173, and an output end of the servo motor is connected to an input end of the precision servo reducer 173. The output end of the precision servo reducer 173 is connected to the rotating shaft 12 for driving the rotating shaft 12 to rotate.

The rotation speed of the servo motor 174 is controlled by a control system 23, the control system 23 mainly comprises a programmable controller 231 and a servo amplifier 233, the programmable controller 231 uses a PLC, and a programmed program is stored in the programmable controller 231. The control end of the programmable controller 231 is connected with the servo amplifier 233, the control end of the servo amplifier 233 is connected with the servo motor 174, and the servo amplifier 233 can convert a signal sent by the programmable controller 231 into an electric signal and then send the electric signal to the servo motor 174, so that the output rotating speed of the servo motor 174 is changed.

Referring to fig. 1 and 2, a first pressure sensitive sensor 21 is mounted in the guide slot 16, a second pressure sensitive sensor 22 is mounted in the trough 15, and both the first pressure sensitive sensor 21 and the second pressure sensitive sensor 22 are connected to a programmable controller 231 in the control system 23.

In the working process, when the magnetic material belt is in contact with the first pressure-sensitive sensor 21 and the second pressure-sensitive sensor 22, the first pressure-sensitive sensor 21 and the second pressure-sensitive sensor 22 can feed back a signal to the programmable controller 231, when only the first pressure-sensitive sensor 21 feeds back the signal, the material tank 15 does not have the magnetic material belt, at the moment, the programmable controller 231 sends a signal to the frequency converter 232 or the servo amplifier 233, the driving motor 172 or the servo motor 174 rotates at a higher speed, after a period of rotation, a certain amount of magnetic material belt can be stored in the material tank 15, at the moment, the motor 172 or the servo motor 174 returns to the normal rotating speed, and the process is dynamically carried.

In order to facilitate the installation of the material roll, the shape of the fixing sleeve 14 is set to be conical, that is, the sectional area of the fixing sleeve 14 tends to decrease in the direction away from the material tray 13, so that the installation difficulty of the material roll can be reduced.

Meanwhile, in order to improve the stability of the material roll in the rotating process, a plurality of elongated slots 141 are formed in the fixed sleeve 14, the elongated slots 141 are uniformly arranged along the circumferential direction of the fixed sleeve 14 and are parallel to the axis of the fixed sleeve 14, and one end of each elongated slot 141, which is far away from the material tray 13, is communicated with the end face of the fixed sleeve 14. Thus, during the mounting of the roll, the portion of the sleeve 14 in contact with the roll is slightly deformed, with an increase in pressure between the two, and a consequent increase in friction.

In order to reduce the load of the motor 172 or the servo motor 174, a plurality of lightening holes 131 are formed in the tray 13, and the lightening holes 131 are uniformly arranged on the tray 13 by taking the axis of the tray 13 as a reference, so that the weight of the tray 13 is reduced, the time for changing the rotating speed of the tray 13 is shortened, and the load on the motor 172 or the servo motor 174 is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an automatic speed governing unwinding device which characterized in that includes:

a base (11);

a rotating shaft (12) which is rotatably connected with the base (11);

the material tray (13) is fixed at one end of the rotating shaft (12);

a fixed sleeve (14) arranged on the material tray (13);

a trough (15) arranged right below the material tray (13);

the guide groove (16) is arranged on the material groove (15) and is arranged along the flowing direction of the materials;

the driving device (17) is arranged on the base (11) and is used for driving the rotating shaft (12) to rotate;

the first pressure-sensitive sensor (21) is arranged in the guide groove (16) and is used for detecting whether materials exist in the guide groove (16) or not;

the second pressure-sensitive sensor (22) is arranged in the material groove (15) and is used for detecting whether materials exist in the material groove (15) or not; and

a control system (23) connected to the drive device (17) for adjusting the rotational speed of the drive device (17);

wherein the first pressure-sensitive sensor (21) and the second pressure-sensitive sensor (22) are both connected to a control system (23).

2. The automatic speed regulation unwinding device of claim 1, characterized in that: the cross-sectional area of the fixed sleeve (14) tends to decrease in the direction away from the tray (13).

3. The automatic speed regulation unwinding device of claim 1 or 2, characterized in that: a plurality of long grooves (141) are uniformly formed in the circumferential direction of the fixing sleeve (14), and the long grooves (141) are parallel to the axis of the fixing sleeve (14);

one end of the long groove (141) far away from the tray (13) is communicated with the end surface of the fixed sleeve (14).

4. The automatic speed regulation unwinding device of claim 1, characterized in that: the material tray (13) is provided with a plurality of lightening holes (131), and the lightening holes (131) are uniformly arranged on the material tray (13) by taking the axis of the material tray (13) as a reference.

5. The automatic speed regulation unwinding device of claim 1, characterized in that: the driving device (17) comprises a speed reducer (171) arranged on the base (11) and a motor (172) arranged on the speed reducer (171);

an output shaft of the speed reducer (171) is connected with the rotating shaft (12).

6. The automatic speed regulation unwinding device of claim 5, characterized in that: the control system (23) comprises a programmable controller (231) and a frequency converter (232) connected with the programmable controller (231);

the output end of the frequency converter (232) is connected with the input end of the motor (172);

the first pressure-sensitive sensor (21) and the second pressure-sensitive sensor (22) are both connected to a programmable controller (231).

7. The automatic speed regulation unwinding device of claim 1, characterized in that: the driving device (17) comprises a precision servo speed reducer (173) and a servo motor (174) connected with the precision servo speed reducer (173);

an output shaft of the precision servo speed reducer (173) is connected with the rotating shaft (12).

8. The automatic speed regulation unwinding device of claim 7, characterized in that: the control system (23) comprises a programmable controller (231) and a servo amplifier (233) connected with the programmable controller (231);

the output end of the servo amplifier (233) is connected with the input end of a servo motor (174);