SU100815A1 - Card Headset Point Machine - Google Patents

Description

The subject of the invention is a machine for a point of a card headset, including a grinding roller, which simultaneously performs a rotational and axial reciprocating movement, and a movable slide with reciprocating sliders having slots for heads.

In comparison with the known similar machines, the proposed machine improves productivity, automates and improves the process point, which is achieved by the presence of mechanisms in it to periodically feed the slits, to automatically feed the sled into the initial position, to automatically fix the headplate in the working position and to remove burr with needles headset.

The mechanism for periodically delivering the slits is made in the form of a magazine with hatches installed above the slider, in the zone of the outlet opening of which a spring-loaded pusher interacting with the rotating cam is mounted, and on the other hand a periodically operating mechanism for automatically fixing the slides in the working position.

This last mechanism is a pivotally mounted rocker, at one end of which a roller is clamped for the roller, and the other end is spring-loaded and interacts with a cam rigidly mounted on the periodically rotating cam of the cam of the pusher.

In order to periodically rotate the cam roller of the pusher and mechanism for automatically fixing the heads in the working position. the drive gear of the planetary gear from the main shaft of the machine is installed with the possibility of its coupling with the angular locking lever; one end of the lever interacts with a rotating drive cam, and the other is spring-loaded and made in the form of a toothed rack, periodically engaging with the drive bar of the planetary gear.

The mechanism for automatically feeding the slide to the initial position consists of a rotating roller, carrying an eccentric sleeves of the slide at the ends, and helical coupling half couplings, one of which is spring-loaded and mounted on the shaft on the spline key for axial displacement, the spring-loaded half coupling interacts with a lever lever and an extension shaft lever. coupling the intermediate gear to the roller of the eccentric sleeves of the movable slide.

FIG. 1 shows the general scheme of the machine; in fig. 2 is a section along AA in FIG. one.

The main shaft / machine is driven into rotation from the engine 2 via a text drive; from the shaft U, through the pulley 3 fixed on it, the rotation is transmitted to the grinding roller 4.

Simultaneously with the rotational movement, the grinding roller 4 receives an axial reciprocating motion by means of a screw 5 fixed on its neck, a worm gear 6 and a driver 7.

Through a textrop drive and block 8, the grinding roller 9 covered with a needle tape is driven into motion.

The shaft / through the worm gear rotates the vertical shaft 10, on which the screw gear 11 is fastened, the drive of the gear 12 and 13 mounted on the common VT gear.

The gear 13 is engaged with a loosely mounted gear 14, which is connected by means of a pin to a crank disk 15 fixed to the shaft 16.

Eccentrically mounted on the disk 15, the finger 17 through the connecting rod lever 18 causes the reciprocating movement of the slider 19 along the guide sled 20.

A crank disk 21 mounted on the other end of the shaft 16 is likewise driven by the slide 22 along the slide rail 23.

The slides 23 and 20 are mechanically reciprocated vertically mechanically from the shaft 24 by means of eccentric sleeves 25 or manually with the aid of a handwheel 26. The latter via a screw to 27 and a worm sector 28 drives the shaft 29, on the ends of which eccentric sleeves are fixed 30. These bushings move returnable vertically on the support / on which the slide is mounted.

; The shaft 16 through the worm to 32 leads the extension of the worm gear 33,

loosely mounted on a vertical roller 34.

A ratchet 35, which is rigidly mounted on a roller 34, is mounted on gear 33 and a dog 35a is pressed against the ratchet into a working movement roller 34.

Valnk 34, through a worm gear, transmits movement to shaft 24, which has two speeds of movement.

At a first speed of 15 ° per minute, the shaft 24 rotates from 0 to 180 °; and the slides are lowered, and the slides placed on them with the helmets installed in their sockets are brought to the grinding roller, which grinds their needles.

The second speed of the shaft 24 is equal to 6 rpm. It is communicated to it from the shaft 16 through the bevel gear 36 fixed on it, coupled to the gear 37 mounted on the vertical roller 38.

A clutch 39 is seated on a vertical roller 38 on the guide pins, which, under the influence of an accelerator mechanism, engages gear 40 on a roller 38. The latter, being in gear with a gear 41 fixed on roller 34, transmits a fast rotation roller 34 The drive cage 42, mounted on this roller, drives shaft 24 through gear 43 to move the second speed of the shaft 24 at the time of taking the sled of the lower end position. When the working movement of the shaft 24 at the first speed coupling 39 is disengaged from the gear 40.

For automatic nodachi sled to the original position on the shaft 24 mounted semi coupling 44 and 45 with a spiral connection. Half coupling 44, which is freely seated on the shaft, is fixed on the support frame 46, and half coupling 45 is mounted on the shaft on the slotted key to allow axial movement.

When the shaft 24 is rotated, the half coupling 45, spinning spirally with respect to the coupling half 44, is displaced along the axis, compressing the spring 47 until the end of the processing of the headpiece, at which the slide lowers

to the lowest position. After this, the coupling half 45 disengages with the coupling half 44 and under the action of the spring 47 occupies the initial position.

The coupling half 45, when returning to the initial position, presses the lever 48, acting on the lever 49, which engages the clutch 39 with the gear 40, and thus the shaft 24 switches to the second rotation speed (idling).

After the clutch 39 with gear 40 engages on the pad 50 fixed on the lever 49, the cam block 5 / begins to act, which keeps the clutch 39 with gear 40 in engagement until the required rotational speed of the shaft 24 at the second (idle) speed (at the operating speed of the shaft 24, when a point occurs, the cam block does not act on the pad 50, and in this position the coupling 39 is disengaged from the gear 40).

A cam block 51 consisting of a set of 24 cam washers loosely mounted on the shaft makes it possible at the beginning of the set point to set the machine to a predetermined amount of grinding off of the set.

For periodic feeding, the machine is equipped with a magazine 52 with heads.

In the area of the outlet of the magazine, on the one hand, mounted is a spring-loaded pusher 63, which interacts with the rotating cam 54, and on the other hand, a periodically operating mechanism for automatically fixing the cylinder in the working position.

This mechanism is made in the form of a swivel-mounted rocker arm 55, which has a roller 56 at one end. The other end of the rocker arm 55 is spring-loaded and interacts with the cam 57, which, together with the cam 54, is rigidly fixed to the periodically rotating roller 58.

In order to periodically rotate the roller 58 and the automatic locking mechanism in the working position, the machine is equipped with a planetary gear from the main shaft.

Planetary gear mounted on a 2J disk. Periodic working movement of the planetary gear is carried out from the action of the cam 59 on the angular locking lever 60. This action occurs when the sled is in its extreme upper position relative to the grinding roller 4. In this position, the cam 59 presses the lever 60, which in its end is made the toothed rack 61, stops the pinion gear 62 of the planetary gear set loosely on the disk hub 2J.

When the gear 62 stops, the gears 63, 64, 65 and 66 of the planetary gear set in motion.

The gear 66 is paired on a common bushing with an asterisk 67, which receives movement only for the time of one revolution of the shaft 58 mounted on the sliders.

The sprocket 67, through the chain drive 68, drives the shaft 58 with the cams 54 and 57, which perform the following work.

The cam 57 presses the rocker 55 and releases the head 69 from the fixation, pressed under the action of 70 to the grinding roller. At the same time, the cam 54, acting on the pusher 53, sends the next head from the store 52 to the turning point. Moving along the guide 71, the turned head goes under the action of the grinding roller 9.

When the cam 54 ceases to act on the yoke 55, the pusher 53 takes the initial position under the action of the spring, and from the magazine 52 the head to be processed goes to the pusher 53.

In the process of the point, the planetary gear is located in the idle position;

Subject invention

Claims (7)

1. A machine for a point of a card headset, including a grinding roller, which simultaneously performs a rotational and axial reciprocating movement, and a movable slide with reciprocating sliders, which have slots for cooling, characterized in that, in order to increase productivity, automation and improvement of the process point, the machine is equipped with a mechanism for periodically feeding the head, a mechanism for automatically feeding the sled to its initial position, a mechanism for automatically fixing the head in the working rto deburring the needles of the headset. 2. The form of the machine according to claim 1, characterized in that the mechanism for the periodic supply of slots is designed as a magazine with caps installed above the slider, in the zone of the outlet of which a spring-loaded pusher is mounted on one side and interacting with the rotating cam, on the other hand, a periodically acting mechanism for automatically fixing the helmet in the working position. 3. The form of the machine according to claim 2, characterized in that the mechanism for automatically fixing the helmet in the working position is made in the form of a pivotally mounted rocker arm, at one end of which the roller is set to the clamp and the other end is spring-loaded and interacts with the cam rigidly mounted on a periodically rotating cam roller cam. 4. The form of the machine according to pp 2 and 3, characterized in that, in order to periodically rotate the cam of the pusher cam and the mechanism for automatically fixing the helmet in the working position, the planetary gear gear from the main shaft of the machine is installed with the possibility of its engagement with the angular locking lever performing oscillatory movements. 5. The form of the machine according to claim 4, wherein the corner locking lever at one end interacts with the rotating driving cam, and the other end is spring-loaded and made in the form of a gear bar, periodically engaging with the drive gear of the planetary gear. 6. The form of the machine according to claim 1, characterized in that the mechanism for the automatic transfer of the slide to the initial position consists of a rotating roller carrying the eccentric sleeves of the slide at the ends, and the helical-shaped coupling half, one of which is spring-loaded and mounted on the shaft on slot key for axial movement. 7. The form of the machine, but also. 6, characterized in that the spring-loaded half coupling by means of a lever system interacts with the clutch of the intermediate gear to the roller of the eccentric sleeves of the movable sled.