SU965718A1 - Charging apparatus - Google Patents

Description

(54) LOADING DEVICE

one

The invention relates to machine building and instrument making and can be used to automate the process of loading process equipment with parts of various shapes, including the type of parallelepiped.

A charging device is known which contains a pre-bunker with a flap and a bunker installed on the base with the possibility of joint oscillating movement, the bottom of which consists of sections of receiving and issuing parts inclined to its center that have guide streams and a discharge tray with a cutter 1.

However, the design of the device does not provide for a reliable reorientation of parts occupying a stable wrong position in the stream or above the streams. These parts, pressed by the stream of correctly oriented parts, repeatedly moving along the creeks do not allow correctly oriented parts to pass through the gap to the discharge tray. In addition, if it is necessary to increase the schaga between the streams, the device performance drops sharply, since

Part of the parts occupies a stable position on the edges between the guide channels, interfering with the movement of parts into the lines. The presence of a constant gap between the receiver and the outstanding bottom sections contributes to the frequent seizure of small thickness parts. It is difficult to provide a metered supply of parts (especially of elongated shape) from the pre-bin with a horizontal flap. With decreasing Q slit, the arch formation and jamming of parts occur, with an increase in the slit, the dose of the delivered parts depends on the size of the loading of the cradle and varies within wide limits.

The purpose of the invention is to increase productivity by providing, with different balls between the streams, reliable and productive dosed feeding of parts of different sizes and shapes.

The goal is achieved by the fact that

2Q loading device is equipped with a backup drive of circular oscillations of the bottom section of the issue of parts, and the output end of the section of the reception of parts installed is movable relative to the section of the bottom of the issue of parts in the lower and upper extreme positions of the bunker, while the valve is installed rotatably and spring-loaded relative to the pre-bin image with the latest pocket dosed capacity parts.

In addition, the part receiving area is spring-loaded relative to the dispensing area and provided with levers installed with the possibility of interaction in the extreme positions of the bunker with additionally inserted stops fixed to the base.

FIG. 1 schematically shows the proposed device with the upper extreme position of the hopper, general view; in fig. 2- the same, with the lower extreme position; in fig. 3 shows section A-A in FIG. one; in fig. 4- section BB in FIG. one; in fig. 5 shows a section B-B in FIG. one; in fig. 6-8 are consecutive positions of the hopper during operation.

On a fixed base 1 (Fig. 1), an axis 3 is installed on the axis x 2, having a crank mechanism as a swing drive. Platform 3 is equipped with a bunker 4 which can be rotated relative to it and above it a pre-bunker fixed to the platform by means of racks 6. On the base 1 there is a fixed multi-tray tray 7. The bottom of the bunker 4 contains guide runners 8 (Fig. 3) for parts 9 and consists from two sections: part 10 receiving parts and part 11 issuing parts (Fig. 6). To rotate the part dispensing section 11 together with the bunker 4 relative to the platform 3, the axis 12 (Fig. 3) and the pneumatic actuator 13, fixed on the platform motionless, serve. The side and rear walls of the section 11 of the bottom have a fence 14 to prevent the parts 9 from falling out of the bunker during operation. The ribs between the guide creeks 8 are made in cross section with a one-sided bevel 15. Part receiving section 10 is rotatable with respect to section 11, for this purpose it is rigidly attached to the axles 16, to which the levers 17 are attached, spring-loaded with respect to the fences 14 1 and 5). To turn the levers 17 in the extreme positions of the bunker, stop bolts 18 and 19 fixed on the base 1 (Fig. 1) are used. In the intermediate position of the hopper, the levers 17 are pressed by the spring to the stop shafts 20, while the output end of the streams of the bottom section 10 comes inside the streams of section 11 (Fig. 8), resting against the bottom of the streams. A fence 21 is fixed to the front wall of the section 10. At the end of the section 11 of the bottom, a cutter is installed on the spring-loaded racks 22, consisting of a strip 23, in which spring-loaded clamps 24, which are individual for each strand, are installed (Fig. 4). For lifting the trimmer in the lowermost position of the hopper, stop bolts 25 mounted on the base 1 are used.

parts of prebunker 5 have a pocket, at the bottom of the KOTOJ) oro there is a spring-loaded butterfly valve 26. Thrust bolts 27 serve to open the latter in the extreme upper position. The capacity of the pocket is designed for the dose of parts to be dispensed

0 for one swing hopper. The crank-and-paddle mechanism, which drives the swing of the platform 3, together with the bunker 4 and the pre-bunker 5, holds the crank 28 (Fig. 3, mounted on the shaft 29 mounted on the sub-bearing supports of the base 1. The rotation drive of the shaft 29 is from an electric motor using transmission (not shown). On the same shaft 29, the cam 30 is rigidly fixed, which serves to act on the pneumatic valve 31, which is connected

with a pneumatic actuator 13. The profile of the cam 30 is designed in such a way that it periodically switches the valve 31 and the pneumatic actuator 13 on.

The device works as follows. In the pre-bin 5, parts 9 fall asleep and

 include driving the shaft 29. From the crank 28 through a curvature-connecting rod mechanism, the platform 3, together with the bunker 4 and the pre-bunker 5 installed on it, begin to perform rocking movements

0 relative to axis 2. When lowering the prebar to the lower position of the part, its right side is filled, including the pocket of the prebunker 5, and the spring-loaded damper 26 keeps the parts from falling out of the prebunker.

5 When the prebunker is rotated to the upper position, the bulk of the parts move to the left part of it, while the left wall of the pocket keeps the parts that are inside it from pouring to the left part

j) pre-bunker. In the extreme upper position (see Figs. 4 and 8), the protruding portion of the flap protruding from the sides abuts the bolts 27, the flap deflects, and the cut-off dose of parts by the pocket falls on the bunker bottom sections 10 and 11. Fences 14 and 21

5 keep the parts from falling out of the hopper. When the platform is reversed, the parts located in the pre-bin move again to the right, filling the pocket. The dose of parts discharged into the bunker is moved to the right along section 11 of the dispensation, filling it with streams. To improve the conditions of orientation of the parts, the bottom together with the entire bunker 4 performs sharp transverse oscillations (turn relative to axis 12 fixed on platform 3 due to the periodic operation of the pneumatic actuator 13 from the cam 30 (Fig. 5). The cam profile provides periodic activation of the pneumatic actuator at intermediate positions

the bunker, i.e. when moving (swinging) it in both directions, and turning off the drive at the extreme positions of the bunker in order to fix it relative to the receiving tray 7, pre-bunker 5 and stop bolts. These abrupt transverse vibrations of the bottom contribute to tipping parts into the creeks that occupy the wrong position, this is especially necessary for parts in which the width is slightly different from the thickness and at the same time two positions of the parts are stable in the creek. In addition, the transverse oscillations, the turning in this case of the bottom relative to the direction of movement of the parts and the fact that the ribs between the strands have a unilateral bevel 15 in cross section do not allow the parts 9 to occupy a stable position on the surface of the ribs; the parts slide along the bevel of the 15th rib, abut against the wall of the stream and, if their position does not coincide with the profile of the stream, unfold under the action of vibrations and fall into the stream in the desired position.

Thus, a significant part of the parts to the end of the rotation of the hopper in the lower position is located in the creeks of the bottom section 11 properly. These parts, moving along the stream, abut against the end of the output end of the receiving section 10 of the bottom. The parts lying above the parts oriented in the streams, as well as on the surfaces of the ribs, are easily transferred to the surface of the receiving section 10 of the bottom (since the output end of this section is located below the surface of the part 11 issuing the parts), while the parts continue to distribute on the stream m.

When the bunker approaches the lowermost position, the levers 17 slide onto the stop bolts 18 and deflect the multi-arm receiving section 10 of the bottom through axles 16, providing a gap between the bottoms of the streams and the exit end of the receiving bottom section for the passage of oriented parts under it. At the same time, the stop bolts 25 act on the racks 22 of the shutter, raising its bar 23 with the clamps 24.

As a result, the parts oriented in the streams pass unhindered along the continuation of the dispensing section 11 into the streams of the fixed receiving tray 7. After the parts are overloaded, the hopper performs another swing, and the legs 22 of the bottom section 10 are cut off from the stops. bolts 18 and 25 and under the action of the springs return to their original position. Clamps 24 glazing overlap streams. In the event that some of the streams of the fixed tray 7 are overfilled, the part 9 located on the border of the streams of the section 11 and the tray 7 is pressed to the bottom by the clamp 24 and is in this position until the next

approach the hopper to the tray. When the bunker reaches its extreme upper position under the action of the stop bolts 19, the levers 17 deflect section 10, providing a gap of at least twice the thickness of the parts between the output end and the bottoms of the streams, which contributes to the release of their jammed parts and further orientation in the stream x (see Fig. 6-8). Since the capacity of the pocket is dosed with

Q considering the required capacity of the loading device, the number of parts delivered from the pre-bin to the hopper per one swing corresponds to the number of parts emitted from the hopper to the fixed receiving tray 7. As a result, regardless of the load of the pre-bunker (up to its full unloading) the number of parts in the bunker virtually unchanged. This ensures the most qualitative and productive process.

Q orientation and the issuance of parts in the process equipment.

The advantages of the proposed device are the possibility of using it to load parts of various sizes, including parts of small thickness and parts with slightly different dimensions in width and height (i.e., occupying two stable positions), ensuring productive work and the presence of an increased - tag

0 between the creeks of the bunker; ensuring a strictly metered supply of parts to the process equipment.

The use of the proposed device practically does not require the intervention of the operator until the complete unloading of parts from the pre-bunker and the performance of the device in comparison with the known increases 1.5-3 times.

0

Claims (2)

1. Boot device containing installed on the base with the possibility of joint swinging movement 5 a pre-bunker with a flap, and a bunker whose bottom consists of receiving and issuing parts inclined to its center with parts having guide streams and a discharge tray with a cut-off device, characterized in that, with a view to increasing productivity, the device is equipped with an additional circular drive oscillations of the bottom section of the issue of parts, and the output end of the section of the bottom of the reception of parts is installed with the ability to move relative to the section 5 of the bottom of the issuance of parts in the lower and upper extreme positions of the bunker, while the valve and pivotally biased relative predbunkera forming a pocket-final dosage container parts. 2. The device according to claim 1, characterized in that the receiving portion of the parts is spring-loaded relative to the dispensing portion and provided with levers installed with the possibility of interaction in the extreme positions of the bun5 kera with additionally inserted stops attached to the base. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 476963, cl. 23 Q 7/08, 1973. nineteen fig.g 15 31 th / 3 ID 21 srig.Z US 5-5 Srag.5