SU1588766A1 - Once-through fleshing machine - Google Patents

Abstract

The invention relates to the leather industry and allows for an increase in labor productivity. The machine contains two pairs of rotating blades 48.49 and 14.15 clamping shafts, a roller mechanism for feeding and spreading the skin 1, a discharge conveyor 12 and a drive for transmitting rotation to the working members. Each of the pressure rolls 14, 15 is made in the form of a cylinder with a plane cut off side surface parallel to the axis of the cylinder. The axes of the pairs of knife and pressure rolls are horizontally offset from each other. The drive of the machine has a cam mechanism with periodic stops and a clutch 21 with a spring-loaded finger 22. It is located eccentrically relative to the axis of the clutch shaft for engagement with the ratchet 19 of the output shaft of the gearbox 18 of the drive. 1 hp ff, 1 ill.

Description

FIELD OF THE INVENTION The invention relates to the fur industry, in particular, to equipment for the incineration of fur skins.

The purpose of the invention is to increase the productivity of the machine by making its design.

The drawing shows a kinematic diagram of the machine, explaining its principle of operation.

The feeding of the skins 1 for machining is done by means of a pressure roller 2 mounted in bearings on levers 3 mounted on a rotary roller 4, which can be rotated and thereby lift the roller 2 under which the skin is guided. This is necessary to ensure reliable feeding of the skins to the feed rollers 5 and 6,

The feed rollers 5 and 6 are arranged above the upper knife and pressure rollers in such a way that the skin is pro- The stroke between them and lowering under their own weight, passes freely into the gap, without touching the knife and pressure plates. Roller 5 is spring loaded and pressed against roller 6,

An intermediate horizontal belt conveyor 7 is located under the upper knife and pressure rolls, and the roller 10 is pressed against the inlet roller 8 by the action of the spring 9. The intermediate conveyor is positioned in such a way that the skin passes freely into the gap between the upper knife and pressure rolls, it touches its lower end, is retracted to the right and falls under the clamp of the roller 10, and upon exiting the clamp it can freely pass into the gap between the lower blade and the pressure rolls. A guide bar 11 is positioned above the intermediate conveyor with a gap, which ensures that the end of the hide is straightened when it, having freed itself from the clamp between the knife and the pressure rolls, falls onto the conveyor. To remove the treated hide from the machine, the outfeed conveyor 12, Conveler, Hyera 7 and 12 is driven from its own drive (not shown),

A fixed table 13 is installed on the machine to feed the skins. Trays for removing the fins are installed below each shaft. Knife shafts are equipped with grinding mechanisms with abrasive sticks.

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The feed rollers 5, 6 and 2, as well as the clamping rubberized shafts 14 and 15, made in the form of a cylinder with a cut plane, have their own drive, which performs the following actions: includes movement, transmits rotation to feed rollers 5, 6 and 2, determines the time shutter speeds, and after that, turns the clamping rubberized shafts 14 and 15 into rotation, stops them after making one revolution and returns them to the initial position for processing the next one. snares, stops the feed rollers, turns off the movement. The rubberized pressure shafts 14 and 15 face the cut shafts to the blade shafts. The drive consists of an electric motor 16, a V-belt transmission 17, a gearbox 18, on the output shaft of which a ratchet 19 with end teeth is mounted. The axes of the pairs of rotating blades and pressure shafts, respectively, are horizontally displaced relative to each other by the diameter of the drive shaft of the existing mechanism. Coupling 21 is fixed on a separate roller 20 located coaxially to the output shaft of the gearbox. Coupling housing 21 has a groove in the middle part, finger 22, freely sitting in the holes of the housing and half protruding outward in the groove, in the middle part of which is located in the housing groove couplings, made wedge groove. A finger 22 is placed on the guide key to prevent it from turning. A spiral spring is inserted in the hole of the coupling housing, one end of which is pressed against the bolt and the other is displaced to the cylindrical end of the finger. The double-arm lever 23 mounted on an axis and having a wedge at the end that enters the recess of the coupling housing and stands in the way of movement around the circumference of the wedge groove of the finger 22,

When the clutch housing is rotated one turn, the wedge groove of the finger encounters a wedge that enters the groove with a sharp end and displaces the finger 22 with its bevelled edge, compressing the spring. When the finger 22 is moved, its end with the flat part disengages from the ratchet tooth 19, and the rotation of the housing of the coupling and the shaft 20 stops. In order to wedge

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pressed against the surface of the machined part of the coupling and exactly fell into the wedge groove of the finger, the end of the two shoulders lever 23 is pulled down by the spiral spring 24. To activate the mechanism, the pedal lever 25 and ta ha 26 is activated. the right end of the two shoulders lever 23 and, consequently, the wedge down, thereby releasing the pin 22 from holding, which moves under the action of the spring and with its end engages the constantly rotating ratchet 19. But since the pedal lever after pressing will be released and The wrist arm 23 with the wedge returns to its previous upper position, then the finger will be displaced by the wedge through exactly one turn of the coupling housing and the rotation of the coupling and the shaft 20 will stop.

Consequently, the shaft 20, after pressing the pedal lever 25, makes one complete revolution and stops. At the left end of the shaft 20, an asterisk 27 of the chain transmission sits, from which the chain 28 drives the shaft 30 through rotation 29, and from it through the sprocket 31 through the chain 32, the rotation is transmitted to the sprocket 33, which is seated on the pin of the feed roller 6. From the roller 6, a movement is transmitted to the roller 5 gears 34 and 35 and roller 2 gears 36 and 37.

The gear ratio from the shaft 20 to the feed roller 6 is calculated so that for one revolution of the shaft 20, the feed rollers 5 and 6 move the hide for a length of, for example, 1500 mm (based on its maximum length).

At the left end of the shaft 30, the cam 38 is fixed. In the initial position, before starting, its tooth is in the upper position and can interact with two protrusions 39 located 180 through the disk 40 fixed to the shaft 41. The shaft 41 is offset from the shaft 30 so that that the cam 38, with the rotation of the shaft 30, can only abut its tooth into the protrusion in the lower position, and with one turn of the shaft 30 rotate the disc, and with it the shaft 41, only 180 °. In the upper position, the cam is disengaged from the protrusion, and the disc stops. Shaft 30 as well as

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and the shaft 20, makes only one revolution, as the gear ratio between them is 1: 1, with the tooth of the cam. stops in the upper (initial) position, ready for repetition of the action, now interacting with the second protrusion.

The shaft 41 uses an asterisk 42 and a chain 43 10 to transmit rotation to the clamped shaft 15 by means of an asterisk 44, and from the shaft 15 rotation is transmitted to the pressure shaft 14 by asterisks 45 and 46 and chain 47.

J5 Therefore, the feed rollers 5, 6 and 2 receive movement from the shaft 30 all the time from turning 360, i.e. from the moment of switching on and to stopping, and the transfer of movement to the clamping 20 rubberized shafts 15 and 14 begins after the shaft 30 rotates 180® and continues for the next half of its rotation.

With a gear ratio of 25 stars 42 and 44 equal to i 2: 1, the pressure shafts 15 and 4, when the shaft 41 is rotated 1/2 of a turn, makes one complete turn 360.

The machine works as follows. 30 A worker presses a foot on the pedal to raise the presser feeder 2 and puts the skin 1 on the table 13 so that its front end touches the feed roller 6. After the pedal is depressed, the roller 2 lowers and presses the front end of the skin on the roller 6.

At this moment, the knife shafts 49 and 48, the intermediate conveyor 7 with the roller 40 10 and the outfeed conveyor 12 are in constant motion. The press rubber shafts 14 and 15 are at rest. The motor 16 is included in the action.

Then the worker presses the pedal 45, and thus activates the drive of the feed rollers and pressure rolls. When pressing the pedal 25 tons ha 26 lowers the lever arm 23 with a wedge. Prior to this, the wedge was placed 50 into the groove of the finger 22, and with its pivotal rib kept the finger in the 19 position disengaged from the ratchet, while the spring was in a compressed state. With the lowering of the lever 23, the finger 22 is released and at its end engages the ratchet 19, as a result of which the housing of the coupling 21 begins to rotate and transmits its rotation to the shaft 20. But

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since the pedal is released after being pressed, the lever 23 takes up its previous position under the action of the spring 24 and after the clutch case has completed one turn, the wedge again meets the wedge groove of the finger 22 and removes the finger from the coupling with the snore - vtsky 19, rotation of the clutch case 21 and shaft 20 is terminated. Therefore, the shaft 20 makes one revolution and stops. During one revolution of the shaft 20, the following actions occur: rotation through the sprockets 27 and 29 and the chain 28 of the shaft 30, which makes one revolution, takes place; During one revolution, the shaft 30 uses sprockets 31 and 33 and a chain 32 to transmit rotation to the feed roller 6, which is turned by the tooth. Rotating, the pressure shafts press the skin to the rotating knife shafts, which are produced simultaneously by the upper and lower parts of the skin. Rubber pressed shafts feed the hides to the mezzanine shafts, press it with a certain pressure, transport it during the process.

The Q intestines and form a gap between the knife and pressure rolls at the time when the flesh is not performed.

The drive roller of the intermediate conveyor B and the pressing-roller 10 are transported and the skin is held before the beginning of the flesh and during the fissure. The flesh is finished, but its back end is still in the car and goes into the gap between the lower

Claims (1)

1. Passing furrowing machine, containing two pairs of rotating knife and pressure rolls, one below the other, a roll mechanism for feeding and smoothing the skin, located between them and having a drive shaft, a discharge conveyor located under the lower pair of knife and pressure rolls , an actuator for transmitting rotation, characterized in that, in order to increase productivity, each pressure shaft is made in the form of a cylinder with a plane cut off side surface parallel to the axis of the cylinder, with scheny cylinders is cut planes to the plane of the blade shafts and parallel to each other to permit passage of the skins, and the steam knife and rotary axis pinch rollers respectively offset horizontally relative to one another by the amount of capstan mechanism valichnogo diameter. 2, The machine according to claim 1, wherein the drive for transmitting the rotation to the working bodies has a cam mechanism with periodic stops and a clutch mounted on the driven shaft, while on the muzzle there is a spring-loaded pin eccentrically located with respect to the shaft axis of the coupling and parallel to it for engagement with the ratchet of the output shaft of the drive reducer. five 0 five