SU368124A1 - AUTOMATIC MACHINE FOR WRAPPING OF BINTS INTO PARLOR - Google Patents

Description

one

The invention relates to the production of sterile bandages.

A machine for wrapping bandages in parchment is known, containing bandage supply units, wrapping bandages in one, two and two and a half turns, shaping and bending the edges of the parchment, applying glue, mechanisms of single-cut parchment, grip and pieces of tear-off thread, as well as squeezing rollers and drive unit.

A disadvantage of the known automaton is the defor mation and the bias of the bandages in the working bodies performing the wrapping.

The purpose of the invention is to increase the efficiency of the machine.

This is achieved by the fact that the wrapping units of the bandages are made in the form of hollow drums, in which a gripping device is mounted, consisting of two parallel tapes, envelopes, rollers installed in grooves of the drums, the tapes, the ends of each of which are held together by springs, and the tapes themselves are connected to each other by attached to them a slider. In addition, the mechanisms for grabbing the tear-off thread and grabbing the parchment are mounted directly on the drum, which twists the bandages in one turn.

FIG. 1 shows the proposed machine, side and top view; in fig. 2 - a piece parchment cover unit, a gripping unit and thread sections, a device for feeding and gripping bandages; in fig. 3 - a unit for molding the edges of the parchment and wrapping the ends of the bandage with parchment and a section. on

FIG. 4 - a unit for applying glue and folding the end of parchment; in fig. 5 - technological scheme of wrapping bandage with parchment.

The machine has a frame /, in the upper part of which the working bodies and mechanisms of control and movement of these bodies are mounted. In the lower part of the bed are the drive and the cam shaft. On the base / cantilever feed conveyor 2, bobbin holder 3, thread guides 4, 5 vacuum suction cups 6, parchment cover store 7, drum 8, which is a hollow cylinder cantilever mounted on a shaft driven by an intermittent rotation mechanism.

Inside the drum, a bandage gripping unit is mounted, which is a slider 9 with two tapes 10 attached to it, envelopes rollers 11, which are tensioned by springs 12. The slider 9 can be moved in the horizontal plane along grooves guides made from the inside of the flanges the drum. The outer flange of the drum has in its central part a groove for exit of the journal of the slide. On the outer surface of the drum there is a device 13 for gripping and holding the end of the thread, consisting of two spring-loaded layers, one of which is rigidly fixed on the drum. For gripping and holding the parchment when the drum is rotated, there are two 5-grasping devices consisting of a tab 14, an axis 15, a sector 16, stops 17 and springs 18. There is a space of 19 seconds before the drum 8. a pusher 20 of the bandage and a sheath on 21, 22 for 10 cutting of the thread at the time of the pushing in of the bandage. To the left of the drum 8 there is a section 23 for forming and wrapping the edges of the parchment, which is a pad 24 with pin guides 25 fixed to it, pillars 15 26 for securing with a help of rods 27 a prismatic guide 28 on which the rollers 29 are fixed carriage 30. A slider 31 is seated on the carriage in the T-slot grooves. In the lower part of the slider, a mechanical arm is attached behind the -20, reciprocating along both the horizontal and vertical planes in conjunction with the slider. The slider 31 is connected to a roller chain 32, tensioned between water-33 at-25 and tensioning 34 asterisks with a finger 35 attached to a chain link. Spring 36 provides the necessary force clamping the bandage to the site. On the guides 25 are hinged 30 wings 37, which can be rotated 90 ° with the help of levers 38 and t 39. The levers are driven by cams located at the bottom of the frame. Sprinkled plates 40 are provided to hold the edges of the parchment during movement 35. The adhesive application unit 41 consists of an adhesive bath 42, in the lower part of which a metering roller 43 with longitudinal grooves rotating 40 round hair brush 44, drum 45, is fixed in slide bearing the construction of which is similar to that of drum 8 with the only difference is that drum 45 is smaller in diameter and honeycomb and lacks the gripping mechanisms45 of parchment and thread; pads 46 for supporting the parchment at the time of applying glue and bending the end of the parchment due to the advance of the drum rotation, since the rotation speed of the pad is twice as high as the ba-50 raban speed. The final wrapping assembly is a drum 47 with a band-gripping mechanism, the design and dimensions of which are similar to the previous one. The smoothing-out unit 55 of the parchment consists of two rubber rollers 48 located one above the other and rotating in different directions. The machine works as follows. The bandages are laid on transport tape-60 pa 2. At the same time, threading is carried out through thread guides, the end of it is hooked to device 13. The parchment cover is loaded into the store 49 face-down so that the sloped cover covers the backs of the store. When the drum 8 is rotated, the suction cups 6 are raised and lowered, the end of the bottom cover sheet is folded over, and the imitation is unwound from the reel at the same time. At the end of the rotation of the drum sector 16 interacts with the stop 17. The foot 14 is rotated by the spring 18 around the axis 15 by 180 °. At the same time, in the upper part of the drum, the parchment is clamped between the body of the drum and the foot, and in its lower part, the parchment is released. The foot turns; the initial position, the parchment cover is retained in the initial position before the bandage is pushed in by rubber plates 50. At the time of the drum stand, the bint is pushed by the pusher 20 into the drum 8, while the slider 9 moves by means of the lever 51. When the slider 9 moves, the parchment thread, thread and bandage between ribbons, the bandage is wrapped on three sides. When the drum is rotated by V2 turn, the fourth side of the bandage is wrapped with parchment. When the slider 9 moves, the bandage and its three sides are wrapped with parchment and thread simultaneously in the right (front) part of the drum, and the bandage is pushed out and transferred to the molding and wrapping unit of the bandage in the left part, and the wrapping occurs in 1V2 0: retaining the bandage by spring holders 52. The mechanic hand presses the bandage to the platform and advances it to the next position, while the edges of the parchment are folded and bent 90 ° with the help of bevelled guides 25. Then mechanically; edges of parchment are heated to 180 ° by wings 37. The mechanical arm returns to the right extreme position, captures the new bandage, and with its left part captures the previous bandage with the edges of the parchment rolled up. The cycle is repeated. When the mechanical arm moves to the left in the final stage of the movement, the first bandage is gripped by the tapes of the drum 45, which is driven by moving the slide 53 by the lever 54 to the left, and the lever 54 returns to its original position. Further, the drum 45 rotates V2 of a turn along the arrow shown in FIG. 4. At the moment of rotation of the drum 45, the pad 46, rotating around the drum with a speed 2 times greater than the speed of rotation of the drum, fits under the remaining free end of the parchment at the point of contact with the rotating brush 44. Brush 44, smeared, goes down from cam 55 and applies glue to the end of the parchment. Upon further movement of the platform, the end of the parchment is transferred with adhesive applied 180 ° relative to its position at the time of application of the adhesive. When the bandage is pushed out of the drum 45, it is simultaneously captured by the tapes of the drum 47, while

The bandage gets two full turns of parchment.

The drum 47 rotates along the arrow and, at the end of the Va turn, the bandage under the rubber rollers 48 is pushed, with which the 2i / 2 turns are wrapped and the end is crimped and glued together. From the rollers 48, the bandage falls onto the tray 56, from where it falls into the container or onto the conveyor belt, transmitting it to the next operation.

Subject invention

Claims (2)

1. An automatic machine for wrapping bandages in parchment containing bandage supply units, wrapping bandages in one, two and two and a half turns, shaping and folding the edges of the parchment, applying glue, mechanisms by piece dispensing parchment, gripping and tearing-off yarn sections, as well as crimping rollers and a drive, characterized in that, in order to increase work efficiency, bandage wrapping units are made in the form of hollow drums, in which a gripping device consisting of D | Vuh parallel tapes is mounted , the envelopes are installed in the grooves of the drums rollers, the ends of each of which are fastened by springs, and the tapes are interconnected by a slider attached to them. 2. A dispenser according to claim I, characterized in that the mechanisms for grasping the tear-off thread and grasping the parchment are mounted directly on the drum, which wraps the bandages in one turn.