SU1240620A1 - Press - Google Patents

Description

2. Press pb of claim 1, characterized in that the converter for deforming an elastic element into an electrical signal contains a lever-gear transmission placed on a frame, a selsyn-sensor, kinematically connected with an output of a gear-gear mechanism, a selsyn-receiver with a fixed one. on its shaft disk with a slot

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The invention relates to equipment for extracting moisture from fur skins.

The aim of the invention is to improve the accuracy of providing a given pressing force by eliminating the effect of deformation of the material to be pressed.

Figure 1 shows the kinematic design of the press; Fig. 2 is a diagram of the press setting unit for the required pressing force.

The press consists of a perforated chamber 1 (Fig. 1) and a pressing plate 2, supplied with a nut 3. A nut 4 is placed in the nut 3, the shank of which is the shaft of the worm gear of the gearbox 5. The gearbox 5 is mounted for movement along the screw axis 4 in a vertical plane. A resilient calibrated element 6 is installed between the gearbox 5 and the beam of the bed. A ring made of polyurethane or buffer rubber, a set of disc springs or compression springs can be used as such an element. The drive of the gearbox 5 consists of an electric motor 7 and a belt drive 8,

The press turns on the deformation converter of the elastic element into an electrical signal. The converter comprises a stop 9 supported on the gearbox housing 5, connected through the gear sector 10 and gear 11 to the shaft of the selsyn sensor 12 connected to the selsyn receiver 13 (connection not shown).

Celsius receiver 13 (figure 2) is placed in the housing 14 and is equipped with a slot 15 mounted on its shaft with a slot. Warp converter

and a lever with an indicator of its angular position, the emphasis of the deforming transducer of the elastic element fixed to the gearbox housing with the possibility of interaction with the lever-gear transmission input, and the limit switch at one of the ends of the pin with the possibility of interaction with the slotted disk.

the element in the electrical signal contains a contactless sensor

16 placed on the arm-bracket

17, the axis of rotation of which coincides with the axis of the selsyn receiver 13. When

This disk 15 is placed in the groove of the sensor 16.

The bracket 17 is installed in the housing 14 and is provided with a handle 18.

Against the handle 18 on the housing 14, a pkkala of 19 forces is applied, determined during calibration: and an elastic element. The press works as follows. In the perforated chamber 1, a batch of fur skins 20 is loaded. Depending on the required moisture of the skins, the operator selects the pressing force and sets the pointer-pointer 18 against division on the scale 19

condition corresponding to the required pressing force. When turning the handle 18, the vehicle 17 turns the bracket 17 together with the contactless datum 16 fixed on it.

it is displaced with respect to sensor 16 by an amount corresponding to the deformation of the elastic element 6 at the time of reaching the required pressing force. The operator then turns on

the electric motor 7, which causes the worm shaft of the gearbox 5 to rotate, and the screw 4. When the screw 4 is rotated, the nut 3 together with the pressing plate 2 is lowered. Upon reaching the plate 2, the fur skins 1) approx. The squeezed moisture through the perforations of the chamber I is removed to the sewer.

As the fur skins compress, compression resistance increases.

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and the force transmitted to the gearbox 5 through a pair of screw - nut.

The gear housing 5 transmits the force to the elastic element 6, which begins to compress. Element 6 is pre-calibrated, i.e. a certain amount of compression of the element corresponds to a known force. When the element 6 is compressed, the gear 5 moves in a vertical plane and through the stop 9, the toothed sector 10 and gear 11 rotates the selsyn shaft of the sensor 12 through a certain angle. In this case, as a result of the electrical connection, the shaft of the selsyn receiver 13 is rotated at the same angle. The disk 15 with a slot is also twisted and mounted on the shaft of the selsyn receiver. The disk 15 when turning its slot affects the sensor 16 at a time when the force of the press reaches a predetermined value.

. The sensor 16 switches the motor 7 to rotate in the opposite direction. In this case, the spin is stopped, and the spin plate 2 rises, releasing the chamber 1 for unloading.

In order to obtain low moisture in the fur skins, the spin operation involves

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406204

for a certain time while maintaining a given effort. The proposed design of the press implements this technological regime as follows.

When the desired force is reached, the motor 7 is turned off and the pressing plate 2 stops. The press is not discharged, and the fur skins 20 remain under load. Moisture continues to move away, the pressure under the squeeze plate 2 drops, while the elastic element 6 is unclamped, the gearbox 5 with the squeezing plate is lowered, turning the shaft of the selsyn sensor 12 through the sector 10 and gear 11 comes out of the groove of the proximity sensor 16. The cpa6aTbmaet proximity sensor 16 and the electric motor 7 turn on again, lowering the pressing state 2. The spinning begins again. Effort increases. Upon reaching a predetermined amount of force, the motor 7 is switched off again and the pressing plate 2 stops again. There may be several such cycles. The whole spinning process takes place automatically without the participation of the operator.

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Editor N.Shvydka

FIG. 2

Compiled by A.M. gkov Tehred I.Popovich

Order 3440/13 Circulation 597 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader L. Patay

Claims (2)

1. PRESS, containing a bed, a screw jack with a squeezing plate and a gearbox kinematically connected to an electric motor, a calibrated elastic element and a converter for its deformation into an electrical signal. the fact that, in order to increase the accuracy of ensuring a given pressing force by eliminating the influence of deformation of the pressed material, the gearbox is mounted on a bed with the possibility of reciprocating eremescheniya along the axis of the screw jack, and a resilient member arranged between the gearbox and the frame. S 5 to Chancelisotzio Figure 1 SU. „1240620 I 2. Press nb p. 1, characterized in that the transformer for the deformation of the elastic element into an electric signal contains a linkage gear located on the bed, a selsyn sensor kinematically connected to the output of the link gear, selsyn receiver with a fixed . on its shaft by a disc, with a slot and a lever c. an indicator of its angular position, and the emphasis of the transformer for deformation of the elastic element is fixed to the gear housing with the possibility of interaction with the input of the link gear, and the limit switch is at one end of the lever with the possibility of interaction with the slotted slot.