RU1794052C - Device for unwinding tape material - Google Patents

Abstract

The invention relates to a technique for rewinding tape materials with a gasket from another release material and can be used in the manufacture of electronic products. SUMMARY OF THE INVENTION: the device comprises a bobbin holder mounted on a bed, a loop compensator 3c with a guide roller, a roller for separating the tape material 6 and the polyethylene strip 7, the drive holder 8, polyethylene guides, packaging of the tape material. The shaft of the drive holder 8 through the clutch 11 is connected to a conical differential 12, on the opposite side of which there is an electromagnetic clutch 13 connected to the synchro 14 through the control unit 15 mounted on the axis of the compensator loop the holder drive is made in the form of an electric motor 16, at No. S (Л WITH

Description

the shaft of which has a bevel gear 17 connected to the bevel gear 18 of the differential, in which

there are sun wheels 19 and 20, as well as satellites 21. 2 il

The invention relates to a technique for rewinding tape materials with a gasket from another release material and can be used in the manufacture of rubber products such as V-belts / ...; ; / hh .;%: h- - ::; - /,

In the field of production of V-belts at the stage of wrapping with a rubber band, the most urgent task is to ensure a smooth increase in the speed of selection of the wrapping tape from nakOB- it with a lining from 0 to a certain value .. ;; -.- chu V iJ V- / vv -ST. v; Izv estnour y1Stvo minutes azl "(U $ d 1K- exact material rpisannre in srstave rate for wrapping the V-belt, soder- zhaschee bobiN- mounted on the frame; d erzhatel s, potleva and com pensatrr drive and gasket holder:

Since the drive of the device starts immediately after the selection of the tape material, and at maximum speed, the latter is given in jerks, which leads to a decrease in quality due to unplanned drawing of the wrapping tape, h; -.h-h ... h,, ..-.

The disadvantage is the lack of smooth adjustment of the speed of the gasket holder. .. .h H

A device for unwinding a material with a gasket is known, which comprises a bobbin holder mounted on a bed, a loop compensator, a gasket drive holder, a compensator loop size sensor connected to the holder drive control unit.

The aim of the invention is to improve the quality of unwinding of tape material; with gasket due to the smooth adjustment of the number of revolutions of the gasket holder from 0 to a certain value.

The objective is achieved in that in the known device comprising a bobbin holder, a loopback compensator and a drive gasket holder, there is a differential, the shaft of one of the sun wheels of which is connected to the gasket holder, and an electromagnetic clutch connected to the shaft of the other sun wheel is connected through the block control with selsyn mounted on the axis of the loop compensator.

The introduction of a differential, the sun wheels of which are connected both with a loop compensator and with the gasket holder, allows the latter to be switched on smoothly from 0 to a predetermined value, which improves the quality of unwinding of the tape material and leads to an increase in the quality of the overall technological software - Trke. -. ......; At:. .- .., .H H ..;

In FIG. 1 shows the described device; in FIG. 2 - the same kinematic

.schematic .; ....; -; :: -.... . The device for unwinding the wrapping tape in the manufacture of V-belts contains mounted on the frame., A bobbin holder 2, a loop compensator 3 with a guide roller 4, a roller 5 for separating the tape material 6 and the polyethylene strip 7, the drive

a holder 8 of a polyethylene gasket, guide rollers 9. A package 10 of tape material with a polyethylene gasket is installed on the bobbin holder 2. The shaft of the drive holder 8 through the clutch 11 is connected to a conical differential 12, on the opposite side of which there is an electromagnetic clutch 13 connected to the selsyn 14 through the control unit 15. Selsin 14 is installed

on the axis of the loop compensator 3.

The drive of the holder 8 is made in the form of an electric motor 16, on the shaft of which a bevel gear 17 is mounted, connected to a bevel gear 18

differential. The latter has sun wheels 19 and 20, as well as satellites 21. The unwinding device operates as follows.

A package of 10 tape material with a polyethylene gasket is mounted on the bobbin holder 2, the polyethylene gasket 7 is rolled around the roller 5 and fixed on the drive holder 8.

The tape material 6 is conducted directly to the holder 8 over the polyethylene gasket and then to the guide roller 9, roller 4 of the compensator 3. A number of guide rollers 9 to the consumer, in our case, to the belt core (not shown).

When selecting the tape material from the loop compensator 3, the electric motor 16 is turned on and transmits the rotation to the gear 18 of the differential 12. Since the drive holder is braked by the polyethylene gasket mounted on it, the gear 18, the satellites 21 and the sun wheel 19 rotate. The sun wheel 2.0 does not rotate.

The compensator roller 4 rises, thereby changing the angle of rotation of the synchro 14, and an increasing voltage is applied to the coil of the electromagnetic clutch 1 through the control unit 15. In this case, the shaft of the sun wheel 19 is braked and the sun wheel 20 is gradually gaining speed, transmitting rotation through the clutch 11 to the holder 8 of the polyethylene gasket from the package 10. There is a selection

SUMMARY OF THE INVENTION A device for unwinding tape material with a gasket comprising a bobbin holder mounted on a bed, a loop compensator, a gasket drive holder, a compensator loop fill sensor coupled to a gasket holder drive control unit, characterized in that, in order to improve the quality of unwinding due to the smooth adjustment material with a polyethylene gasket from the package 10, the polyethylene gasket is wound on the holder 8, and the tape material fills the compensator loop 3.

When the loop of the selsyn compensator is filled, it takes its initial position, the voltage is smoothly removed from the coil of the electromagnetic coupling, the gasket holder

stops. The electric motor 16 is turned off. The cycle repeats

Compared with the prototype, the quality of the rewind is significantly improved due to the elimination of jerks when turning on the drive

at the beginning of the selection of tape material from the loop compensator.

In order to maintain the rotation speed of the holder, it is equipped with a differential, the shaft of one of the sun wheels of which is connected to the gasket holder, and an electromagnetic clutch connected to the control unit is mounted on the shaft of the other sun wheel, the sensor for filling the compensator loop is made in the form of a selsyn mounted on an orifice compensator. -. ,; ; . . : ..,: ... ..