CS240171B1 - Feeding device for a container with rod guidance - Google Patents

Abstract

The solution relates to a feeding device for a magazine with a rod guide. The essence of the feeding device is that it consists of a body provided with a guide and a toothed rack, a carriage provided with a driving pin, a gear wheel set, rolling nests for guiding the carriage and a rolling nest for supporting the roller at the point of engagement with the gear wheel of the wheel set. It further consists of a cylinder with hollow plungers provided with a toothed rack and a guide for the rolling nest. The advantage of the feeding device according to the invention is the reduction of the stopped area. The device can also be used with a large range of rod projections. The device allows the use of tubular pallets, which allows the handling of rods with a large range of diameters and various profiles and lengths.

Description

The invention relates to a feeder device for a magazine with a guide rod.

Known feeders have a fixed feeder rod mounted on a support that moves along a guide parallel to the feeder rod and is pulled by a chain tensioned between two sprockets, one of which is driven by an electric motor via a gear and an electromagnetic clutch. This arrangement is unsuitable because it extends the feeder by the entire length of the feeder rod and when using several devices, there are large demands on the built-up area.

Another type of feeder uses a so-called oxtail, which is inserted in the tube parallel to the guide tube and is inserted into the guide tube of the feeder via a gear wheel. By rotating the gear wheel, the large tail is pulled out of the tube and simultaneously inserted into the guide tube of the feeder. This arrangement allows the feeding of bars of different diameters and does not allow the rest of the bar to be pushed out in the feeding axis by a simple device.

Another type of feeding device consists of several pairs of driven rollers mounted on supports, which are guided on guides perpendicular to the fed bar and are connected by a screw so that when it is rotated they approach or move away from each other. This design does not allow feeding bars of different diameters and does not allow the entire bar to be inserted into the machine spindle without an additional stepping device.

Another type of feeder uses a telescopic rod mounted on two carts pulled by a chain. The front cart extends the telescopic rod and the rear cart inserts the telescopic rod with the rod to be fed into the spindle of the atro. This design does not allow the use of a tube pallet.

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Many of these disadvantages are eliminated by the feeding device according to the invention, the essence of which is economical in that it consists of a guide body, a carriage with a driven saw, which fits into the groove in the tongue of a tubular pellet with a collet, stored in the bed of the magazine drum, and a hydraulic drive with a differential mechanism. Roller nests are attached to the carriage, by which the carriage is guided in the rails. The roller nests are screwed to the carriage body and their position is secured by pins. The carriage is driven by a hydraulic cylinder and a differential mechanism. The carriage is provided with a gear at the top and a guide at the bottom for a double roller nest, which is supported by a roller in engagement with a smaller gear wheel. The roller is fixed by a pin and divided into two parts. Nuts are screwed onto the threaded ends of the cylinder, in which rings and bushings for guiding the plungers are placed. The end surface of the nut also serves as a stop surface. The nut is secured by a locking screw. The double wheel is mounted in needle bearings on a pin, which is mounted in the carriage body by means of a flange, the larger wheel of the double wheel is in engagement with a toothed rack screwed to the body. With a ratio of the number of teeth of the double wheel 2/7, the stroke of the hydraulic cylinder is 1/3 of the stroke of the carriage. Oil is supplied to the cylinder by hollow plungers, which are fixed in holders at the ends of the guide. The stroke of the cylinder is controlled by adjustable dorezovýml nuts.

The advantage of the feeder device according to the invention is the reduction of the built-up area. The device can also be used with a large range of rod diameters. The device allows the use of tube pallets, which allows the handling of rods with a large range of diameters and various profiles and lengths.

An example of an embodiment of a feeder device according to the invention is shown in Fig. 1, Fig. 2 and Fig. 3, where Fig. 1 shows a carriage, guide and hydraulic drive in section, Fig. 2 shows a part of the hydraulic drive and Fig. 3 is a general view of the feeder device with a tubular pellet.

The feeder device consists of a 9-piece body 1, on which the guide is fixed by screws 2 and the toothed rack 5 by screws 4. It further consists of a carriage 6 equipped with a thumb 7, which fits into the groove in the tongue 21 on the tubular pallet £8 with a collet placed in the bed XQ of the drum of the magazine, a double roller nest which is .240 171 . 4 3rtuby £g fixed to the carriage 6. Dit· are to the carriage $ Screws £1 through the washer 1£ fixed roller nest 1£. Not the beet 1£, which is mounted in a housing fixed· to the carriage £ Screws ££, is rotatably mounted· double roller 1£ through needle bearings 12. It further consists of a hydraulic cylinder £2, a divided beet ££, which is provided with threads at the ends, a toothed rack ££, and a guide 21 for a double roller nest £. At the ends of the hydraulic cylinder £, nuts 2j> are screwed on, serving as stops in which there are sealing rings 2J and guide sleeves 2£ for hollow plungers 25. 2^. which are fixed with their ends in holders 2 to the body 1. The hollow plunger /when moving back the plunger··. ££/ flows into the hydraulic cylinder £2, which causes the cylinder £2 to move. The toothed rack ££, which engages the smaller wheel of the double-wheel £5, sets this wheel in motion. The larger wheel of the double-wheel 1J begins to rotate along the toothed rack 5. If the cylinder £2 moves at a speed v^, then the speed of the double-wheel axis £g is v:

^r 2

.. _ .. r«... radius of the small double-wheeled wheel v · ^{1 r} 2 ~ ^r 1 r ₂ ··. radius of the large double-wheeled wheel

Fř1 ppMeasurement of radii r^ /r ₂ 2/3 moves the axis of the double-wheel £8 and therefore 1 carriage £ 3 times faster than the roller £2« Fř1 this ratio results in a feeder device as long as the length of the guide J.

Claims (3)

OF THE INVENTION ₂₄₀ j A feeder device for a magazine with a rod guide ⁴ comprising a carriage, a guide and a hydraulic cylinder, characterized in that the carriage (6) provided with a toothed double-ol * (18) is slidably mounted in the guide (3), * 2 sprocket / 18 / is engaged with sprocket * / 5 /, rigidly coupled * with body * / 1 / and sprocket * / 20 /, rigidly coupled * with hydraulic * cylinder * / 19 /, to whose mutually separated spaces engage hollow plungers 1251, (26) which are firmly attached to the body (1). Device according to claim 1, characterized in that the hydraulic cylinder (19) is provided with a guide (21), Device according to claim 1, characterized in that the carriage (6) is provided with a rolling nests (8).