DE1195505B - Weighing device for sorting glass tubes of the same diameter and different length - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

GOIg

German KL: 42 f- 31/01

Number:
File number:
Registration date:
Display day:

1195 505
D30381IXc / 42f
April 9, 1959
June 24, 1965

The invention relates to a weighing device for sorting glass tubes of the same diameter and different lengths according to their wall thickness with a leading the tubes individually against a stop and then this one consisting of several adjacent pipe support levers Weighing device feeding device and with a number of superposed, the Pipes to be sorted out by swiveling ones that reach into the deflection path of the pipe support lever Trays accommodating the ejector.

Since the weight per unit of length of pipes of the same diameter increases with the wall thickness changes and is proportional to the wall thickness, pipes of the same length can be sorted out according to the wall thickness by weighing and sorting according to weight.

The glass tubes are usually delivered in different lengths. One needs therefore a device that is influenced not only by the weight of the tube but also by the length of the glass tube so that the glass tubes of different lengths are sorted out according to the weight of the unit of length.

This object is achieved in the known devices in that one with the weighing device connected component moves a counterweight on a balance beam so that it is at short tubes on a small and, in the case of long tubes, on a large lever arm of the balance beam works. While the balance beam is deflecting under the weight of the glass tube, it will Counterweight on the balance beam pushed further away from its pivot point until equilibrium entry. Here, the tube supports holding the glass tubes are located opposite one of the weight shelf corresponding to the length unit of the pipe. Reaching between the pipe supports swiveling arms then push the pipe into the corresponding tray. To determine the length of the Pipes are guided against a stop. However, these processes require a very complicated, machine-driven device.

Sorting scales are also known in which glass tubes or the like in a storage container stacked, but removed from it automatically using lateral guides, the weighing system fed, weighed and sorted according to weight groups placed on shelves.

In the case of a weighing device explained above, the stated aim is now achieved in a simpler manner in that, according to the invention, the tubes aligned on one side are provided with a weighing device for sorting glass tubes, depending on their length
same diameter and different
length

Applicant:

Dr.-Ing. e. H. J. Poet,

Berlin-Schöneberg, Sachsendamm 93

Named as inventor:

Dr.-Ing. e. H. J. Dichter, Berlin-Schöneberg

apply the correct number of weight-loaded, independently oscillating pipe support levers, whose weights correspond to the length of the pipe section assigned to the lever.

In this way, pipes of the same wall thickness will have the same scale deflection despite different lengths causes the pipe to rest on a greater number of weight levers of greater length and has to compensate for a larger counterweight.

In a particularly expedient embodiment, those corresponding to the shortest pipe length are on Stretch the pipe support only two main weighing levers and on the further up to the largest pipe length Reaching support distance arranged in a larger number of auxiliary swivel levers, each of which has a short Pipe section is assigned. The counterweights acting on the weight levers are proportional the length of the pipe carried by the weight levers. If, for example, the Pipe length is assumed to be 3 cm, the counterweight of a rocker lever, which is a piece of pipe 3 cm in length is assigned to the unit of weight. This would be shown for the auxiliary weight levers and described embodiment of the device according to the invention apply. if then a pipe of the shortest length 1.20 m = 40 units of length on the two main weighing levers rests, the counterweight of each of these main weighing levers must be 20 weight units. So is achieved by appropriate dimensioning of the rocker arm weights that pipes of the same wall thickness cause the same scale deflection in spite of different lengths and in the same Shelf can be pushed out.

In its training details, the device differs according to the Invention also expediently by the

509 597/135

known types. The pipe is not aligned with its support by a special Machine part pushed against the stop, but by the moving base. The loading device does not consist of two inclined rails, call the constantly new pipes must be put on, but is able to put only a single tube from a whole stack into the weighing device to promote.

The invention is explained on the basis of the drawing using an exemplary embodiment. In the drawing represent

A b b. 1 the weighing device in side view,

A b b. 2 the view from above and

A b b. 3 and 4 a side view and top view of the tray for different pipe diameters.

The main shaft is in the frame of the weighing device formed by the two side parts 1, 1 ' 2 stored, which are driven by the motor 3, the V-belt gear 4 and a worm gear 5 will. On the main shaft 2 there is a cam 6, which is supported by the one at 7 Double lever 8 and the joint 9 segment-shaped lever 12, 12 'moved up and down.

The levers 12, 12 'are connected by the rods 13, 13' to form a rigid structural unit, which at 14, 14 'swings around the shaft 11 fixed in the arms 10, 10'. On the levers 12, 12 'are radially to the shaft 11 the segment-like arms 15, 15 ', which lift the glass tubes 16 out of the stack and bring them along the storage rails 17, 17 'to the upper end of the same. These filing bars 17, 17 '(Fig. 3 and 4) are guided in sliding guides 18, 18' and are guided via the at 19, 19 'mounted shaft 20 via the levers 21, 21' engaging in the sliding guides 18, 18 ' relative to the segment-like arms 15, 15 'moved that the support at the upper end of the segments only leaves space for one pipe, so that if, for example, several pipes are stacked from the Stack are lifted, except for one again when the segment-like arms 15, 15 'emerge roll back the stack in this.

On the right side of the weighing device (A b b. 2) is a stop 22 as a lateral limit intended for the glass tubes placed in bundles in the weighing device, the ones on the right End probably limited by the stop 22, but otherwise an irregular distance in the longitudinal direction of the stop 22 have.

The weighing of tubes of different lengths, as will be described later, requires a uniform one Position the ends on the right-hand side of the weighing device to avoid differences in length can be taken into account by the additional rocker arm systems.

For this purpose, the right end of the glass tubes is automatically pressed against the lateral stop 22 out when they are from the segment-like arms 15, 15 'over the storage strips 17, 17' on the stationary Tray 23 or on the prismatic rollers 24, 24 'are raised in the bearings 25, 25 'are rotatably arranged. These roles are given a rotation via a chain drive 26, the is dimensioned so that the glass tube lying in the prismatic recess despite the different Distance position relative to the stop 22 is safely brought up to this.

From this directed position, the glass tubes are moved by the transport chain 27, 27 'via the Gearbox 32 on the pipe support levers 28, 28 ', which represent the actual main weighing levers, brought. These are stored in cutting at 29, 29 'and connected by a rod 30, so that swing both arms together. On the right end they have for receiving the glass tubes prismatic recesses and at the rear end

ίο (Fig. 1) the weights31, 3Γ.

After the glass tube has been placed on the tube support levers 28, 28 ', they incline around the cutting edges 29, 29 ', corresponding to the weight of the pipe at the right end and the weight 31, 31' on the left end so far that they come to stand in front of a group of shelf 33. About one on the Shaft 2 seated cam 34 are provided with recesses ejectors 35, 35 ', which in Frame are stored at 36, moved to the right, so

ao that the glass tube is placed on the respective shelf.

The glass tubes are delivered from production in lengths of around 1.50 m. The differences in length due to breakage etc. are up to 30 cm. Therefore, the two main rocker levers 28, 28 'far enough apart that they still carry a pipe 1.20 m long. Likewise, the Main weights 31.31 / intended for such a length. In addition to these main cradle levers are for the remaining 30 cm in length at intervals of 3 cm ten auxiliary weighing levers 37 are arranged, which are independent swing from each other, and at the left ends of which a weight is attached to each lever, which corresponds to the pipe length of 3 cm. When the glass tube rests on the main levers, their weight corresponds to the length of 1.20 m, it still takes as much auxiliary lever with it when swinging downwards as is the extra length in cm divided by 3. However, in order to obtain an accurate and even weighing result in Regarding deposit groups, it is necessary that all tubes are right an even Own location.

The invention, albeit using known means, an automatic Machine created for weighing and depositing in groups, for even weighing and grouping Different pipe lengths are also permitted and, since apart from inserting in bundles and in groups Removal of the glass tubes no further manual operations are required, the operator the operation several machines allowed at the same time.

Claims (5)

Patent claims: 1. Weighing device for sorting glass tubes of the same diameter and different Length according to their wall thickness with a leading the tubes individually against a stop and subsequently this one consisting of several adjacent pipe support levers Weighing device feeding device as well as with a number of superposed pipes through which to be sorted out pivotable ejectors that extend into the deflection path of the pipe support lever Shelves, characterized in that the tubes (16) aligned on one side depending on their length, a predetermined number of weight-loaded, independently of each other apply vibrating pipe support levers (28, 28 ', 37), whose weights (31, 31 ') correspond to the length of the pipe section assigned to the lever. 2. Weighing device according to claim 1, characterized in that two in the pipe support Distance of the shortest pipe length occurring pipe support lever (28,28 ') and on it then arranged at a predetermined distance auxiliary lever (37) for pipes of greater length are. 3. Weighing device according to claims 1 and 2, characterized by one against the Stop (22) movable support for the pipes. 4. Weighing device according to claim 3, characterized in that the support is made by a Drive (26) rotatable rollers (24, 24 ') consists. 5. Weighing device according to claims 1 to 4, characterized in that arc-shaped, limiting the tube stack with respect to the weighing device and at the top towards the latter beveled storage strips (17, 17 ') opposite through the bottom of the feed device upward swinging, segment-like arms (15, 15 ') are adjustable such that only a single glass tube is lifted off. Considered publications:
German Patent Nos. 519 367, 811811, 910;
U.S. Patent No. 2581698. 1 sheet of drawings 509 597/135 6.65 © Bundesdruclcerei Berlin