DE532427C - Device for automatic piston feed for machines for melting the support frames into the pistons of electric light bulbs and similar closed glass vessels - Google Patents

Description

The invention relates to a further embodiment of that described in patent 454423 Device for automatic piston feed for machines for melting down the support frames in the bulbs of electric light bulbs and the purpose of a much larger bulb supply to be able to store the entire facility even if the design is more compact, so that the loading of the device with piston stocks to be processed in even larger Time intervals can take place as with the establishment according to the main patent. To this Purpose is according to the invention to that supporting the piston transport frame and accordingly The first conveyor belt of the device according to the main patent, having piston rows an elevator-like conveyor system consisting of vertically rotating chains made up of a number of vertically stacked transport frames in certain, mutually parallel inclination holds. The one by the elevator-like conveyor The piston transport frame reaching the top position in each case comes here as an extension of the upper strand running diagonally downwards with the same incline of the first conveyor belt and can then be moved by its own weight from the to Bracket of the piston transport tables used chains of the elevator-like conveyor device slide over onto the first conveyor belt of the actual piston feed device, from which the pistons, as in Main patent executed, in rows on the second, which runs transversely to the first conveyor belt Conveyor belt to be pushed to the piston feeder. Since it is no longer necessary is that the first conveyor belt having the piston transverse rows simultaneously several Receives the piston support frame and acts as a piston accumulator, so this first conveyor belt now obtained a much smaller length and overall height. The resulting Space is created by the elevator-like conveying device attached to the conveyor belt beneficially exploited, as this is due to the stacking of the frames with much more convenient use of the Piston-holding support frame takes a far larger supply of pistons than that relevant conveyor belt at the facility according to the main patent.

* J The patent seeker stated as the inventor:

DipL-Ing. Jakob Regenstreif in Berlin.

In the drawing is an embodiment of the new device in Fig. Ι in side view, in Fig. 2 -in front view -and in Fig. 3 shown in plan.

Fig. 4 shows on a larger scale the transfer of a piston transport frame from the elevator-like conveyor to the first conveyor belt of the feeder. Fig. 5 shows a detail in a diagrammatic representation and Fig. 6 shows the latching of the frame on a larger scale. The actual piston feed device, like the one according to the main patent, consists of two endless conveyor belts α and b at right angles to one another, of which the first conveyor belt α, which carries the piston transport frames and accordingly has piston rows, is guided over three drive rollers c, c ¹ , c ² ao. The second conveyor belt δ, which is guided over rollers δ ¹ , b ² , in turn has shells h in which the pistons f taken over from the first conveyor belt α are fed transversely past a curved guide plate k past a collecting funnel, not shown, from which the individual pistons can then be inserted into the melting machine takes place.

At the rear rising end of the conveyor belt a, which in turn is composed of two chains a ¹ , a ² braced together in a suitable manner, an elevator-like conveyor is placed, which consists of a frame w with chain wheels w ¹ mounted on it for four rotating in a vertical plane and chains w ² (Fig. 3) juxtaposed to form a prism. The mutual spacing of the four chains is chosen so that the space enclosed by them can be used for stacking the usual, parallel rows of holes having piston transport frames e ¹ . To support the latter, bolts w ³ protruding from the chains w ² are attached at equal intervals. The bolts of the chains w ² adjacent to the conveyor belt a are offset from the bolts attached to the two other chains w ² , so that all the transport frames e ^{1 placed are} not only parallel to one another, but also assume an inclined position at the same time as the inclined position of the downward running upper run of the conveyor belt α coincides. So that the inclined transport frames maintain their mutual position on the chains ^{w z} , two vertically positioned strips χ are built into the frame w , on which the front edges of the transport frames e ^{1 are supported.} The upper ends of these bars are bent in the direction of the conveyor belt α and attached to the U-shaped rails y serving to guide the chains a ¹ , a ^{2 in} such a way that the curved sliding surfaces x ¹ (Fig. 5) of the bars χ to the Connect the lower running surfaces of the rails y seamlessly. The transport frames carried by the chains w ^z slide during the transition from the second top layer to the top layer on the curved end parts of the bars x, where they protrude somewhat further from the chains w ^2. As soon as a TransporttafeJ e ^{1 has reached} the uppermost layer, in which it is in a straight line extension to the upper run of the conveyor belt α , it slides into the rails y by its own weight and thus onto the chains a ¹ , a ^{2 of} the conveyor belt α running in these . The downward sliding of the uppermost transport frame is limited by the stop blocks ζ attached to the chains a ^x , a ² in such a way that the first transverse row of pistons of the transport frame that has accumulated on the conveyor belt a is in the plane of oscillation of the one used to transfer the pistons to the second conveyor belt b Lever 1 comes to a standstill. The latter has, as already described in the main patent, a transverse bar t, on which a number of rods u, which are arranged in a rake-like manner, and which correspond to the number of transversely arranged pistons, is attached. This rake-like lever r, which is rotatable about an axis q, oscillates by means of a ^{thumb s attached to the axis s 1} after each switching of the band a. So that the piston f can be lifted out of the transport frame without lifting it, the latter is additionally locked when it hits the stop blocks ζ. For this purpose, small pawls z ^{1 are} rotatably mounted on the stop blocks, which snap away over the upwardly curved edge e ^{z of the piston transport frame.}

As with the device according to the main patent, provided that each piston transport frame has seven transverse rows with eleven pistons each, after eleven partial rotations of the melting machine and eleven step movements of the conveyor belt b, the bottom row of pistons of the transport frame resting on the conveyor belt α is moved to the by means of the rake-like rocker arm r Conveyor belt δ pushed on and then the conveyor belt α with the clamped transport frame pushed forward by the distance of white rows of pistons, so that the next row of pistons of the piston transport frame is then ready to work. This advancing of the band α takes place, for example, by means of a thumb s ² which is attached to the ^{axis s 1} controlled by the drive of the melting machine. The thumb s ² grips with each rotation of its axis s ¹ between the rollers c ³ one on the axis c ⁴

532 4-7

the conveyor belt roller c ² seated disc c ⁵ , with the result that this disc and the associated drive roller c ^{2 of} the conveyor belt α receives a partial rotation that is sufficient for moving the piston transport frame by a transverse division.

So that the pushed-open pistons are safe

• come to rest on the belt δ and are not carried along by the receding rods u , an oscillating comb v ³ controlled by means of a vertically movable rod v ^z is provided on an arm v ^{1 of} the frame w and interacts with a stationary stop side u ⁴ . For habitual-Hch, the oscillating comb v ^z assumes the elevated position shown in Fig. 4, in which it does not hinder the lifting of the bottom row of pistons of the piston transport frame e ^1. At the moment when the rake-like lever r has ended its upward oscillation, the comb v ³ folds down. With the lever r swinging back, the rake bars u can then be fixed through the comb incisions, but not any on the rake bars u.

s5 seated piston f swing back into the starting position, since the pistons hit against the closed teeth of the oscillating comb v ³ and also against the front edge of the bar v * and are held back by this in the shells h of the band δ.

If the last row of pistons of the transport frame e ^{1 is} ready for work and has also been placed on the belt δ by six switching movements of the belt α , a seventh switching of the belt α that is twice as large begins, with the result that the emptied transport frame e ^x with ventilation of the latches z ¹ falls through a discharge channel e ³ 'into a storage basket e *. The release of the pawls z ¹ takes place here by impingement of z to the rotatable pawls provided ¹ "stop lugs z ² against the bent-y ¹ y of the rails. The α can double the advance movement of the belt, for example,

+5 by a second two-pronged thumb s ³ attached to the axis s ¹ , which comes into engagement with two rollers c ⁶ (Fig. 2) arranged on the back of the disk c ⁵ with every seventh rotation of the axis s ^1.

Simultaneously with the seventh larger switching movement of the conveyor belt α , an upward movement of the chains w ^z holding the supply frame takes place, for example by pneumatic action. As a result, the next piston transport frame now comes to slide onto the belt α and hit two other stop blocks z, which have meanwhile come into position near the conveyor belt δ, so that then the bottom row of pistons of the piston transport frame e ¹ , which is newly routed to the belt α, is again used for piston delivery is ready.

Claims (3)

Patent claims: i. Device for automatic piston feed for machines for melting the support frames into the bulbs of electric incandescent lamps and similar closed glass vessels according to Patent 454423 with conveyor belts carrying the piston transport frame, characterized in that the first conveyor belt (a) carrying the piston transport frame in an inclined position is connected to a conveyor belt (a) made of vertically rotating chains ( w ² ) existing elevator-like conveying device is provided, which holds a number of vertically stacked piston transport frames (e ¹ ) in such an inclined, mutually parallel position that the piston transport frame (e ¹ ) reaching the uppermost position is inclined by its own weight on the one at the same inclination downward running upper run of the first conveyor belt (a) can slide over. 2. Device according to claim 1, characterized in that the front edges of the stacked piston transport frame (e ¹ ) are preceded by vertical stop strips (x) , the upper ends (x ¹ ) of which are bent towards the first conveyor belt (a ) on the slide rails (y) ) for the chains (a ¹ , a ^z ) of the first conveyor belt (a) are connected smoothly. 3. Device according to claim 1 and 2, characterized in that on the chains (a ¹ , a ² ) of the first conveyor belt (a) stop blocks (z) with locking pawls (z ¹ ) are attached, which after sliding over each of the piston transport frame (e ¹ ) snap onto the first conveyor belt (a) and hit the stop blocks (z) over the bent-up edge (e ² ) of the transport ^{frame (e 1} ). 1 sheet of drawings