FI64082C - KUVERTERINGSANORDNING - Google Patents

Description

64082

The present invention relates to a peeling device of the type given in the preamble of claim 1.

Hitherto known peeling devices are those in which all functions are handled mechanically, for example by means of chains, belts, etc. One example of such a device is disclosed in Swedish patent publication 327 930, which has a push carriage attached to a stand which, according to the desired working rhythm, gives the movable rack a reciprocating movement, which in turn uses other devices. The disadvantage of a mechanically used device, such as a chain-driven device, is the interference caused by the transmission, which often results in material loss, as well as the frequent maintenance required by the devices. The object of the present invention is to avoid the above-mentioned disadvantages and to provide a device which is reliable and, in addition, very low-maintenance.

The advantages of the peeling device according to the invention are achieved by the features given in claim 1.

The invention will now be described in more detail with reference to the accompanying patent drawings, in which Fig. 1 shows a recorder for transferring a sheet-like, envelope brochure or the like to its conveyor track, Fig. 2 shows a timing device for timing devices 4 shows the general arrangement of the peeling device as seen from above.

Fig. 1 shows a hook 1 consisting of two working cylinders 2 and 4, the former for moving the jaws 8 and 9 of the 64082 hook shown in Fig. 1 to the left to capture a sheet of paper or other similar article 10 from the stack and return to the initial position, the jaws 8 and 9 of the hook release the sheet 10 to the conveyor. The purpose of the second cylinder 4 is to use the jaws 8 and 9 of the hook, or rather only to move the jaw 8, which in the closed position presses against the lower, fixed jaw 9, and in turn rises out of it in the open position. When a sheet of paper 10 or the like is to be captured from a stack, the event is normally as follows. The stack, which is not shown in Fig. 1, but which can be seen in the general figure 4, denoted by reference numeral 17, has a large number of papers entering the envelope in an overlapping position with respect to each other. Below the stack 17 there is a suction cup which operates by means of a vacuum and by means of which the edge of the bottom sheet on the hook 1 is bent a certain distance downwards. When the sheet is bent somewhat downwards from its right edge as shown in Fig. 4, a fixed jaw 9 is pushed by the cylinder 2, the associated movable jaw 8 and the cylinder 4 arm 5 with guide tubes 3 as shown in Fig. 1 from right to left until the hook jaws 8 and 9 are slightly bent on both sides of the sheet of paper 10, whereby the upper jaw 8 of the hook is caused by the cylinder 4 to press against the lower jaw 9. The cylinder 2 then returns the whole of the above-mentioned device assembly to its initial position or close to it, where the jaws loosen their grip on the paper, which then falls onto the conveyor track 20. (Fig. 4). In the embodiment shown in Figure 4, the conveyor track conveys papers from top to bottom.

There may be a desired number of snout devices 1, which number may be any number different from the embodiment shown in Fig. 4. Each hooker performs his own movement, and as seen in Figure 4, moving from top to bottom, each hooker drops on his own, picked-up sheet of paper or similar previous sheet. As shown in Fig. 4, the conveyor track 20 has a second conveyor track 21 adjacent to it at the bottom. For the track 20, the hook device 19 picks up an envelope from the stack 18. The envelope moves synchronously with the stack of paper moving on the track 20 to the devices 22-25, where the suction cup device 23 at the end of the shaft 77 3 64082 slits the envelope so that the working cylinder 24 can push the stack of paper 20 into the envelope. The suction cup device 23 then releases its grip and the track 21 moves the shell with its interior for further processing.

Figures 2 and 3 show a preferred alternative for timing the tape recorders and transfer devices in the device according to the invention. The body of the device is formed by timing wheels 13 attached to the shaft 11, on the outer circumference of which, for example, timing projections 12 are attached by a screw connection, which use microswitches 16, which in turn give the work cylinders a command both forward and backward.

In order to make the timing as simple as possible, an adjusting screw 15 is provided on the shaft 11, which releases the timing wheels 13 via a clamping sleeve 14 so that they can be rotated the desired distance, then re-tightened by turning the screw 15. The timing wheels 13 can be added to the system as needed. for there is, of course, no upper limit on the number of timing wheels. The distance covered by the timing projection from the circumference of the timing wheel determines the thrust or thrust of each cylinder. In other words, a short protrusion gives a short control pulse, a long one a long one.

As already mentioned, the main functions of the device according to the invention are pneumatically operated, which has the great advantage that the pneumatic cylinders require very little maintenance, since the lubricants can be supplied to the cylinders with compressed air. The device is also so simple in structure that its maintenance costs and need for maintenance are very low.

Conveyors 20 and 21 according to the invention are of any suitable type, such as belt conveyors or chain conveyors, although a conveyor is used in this particular embodiment in the shell filling step, in which the holding device grips the shell from one edge and thus helps it to remain in place.

4,64082

The same holding device then moves, for example, conveyed by a chain, so that a separate other conveyor is not required.

The entire apparatus, including its hooking devices, filling devices and other necessary devices, is assembled into a unit that is representative in appearance, showing only those parts which cannot be hidden under the aesthetic shell or which are otherwise advantageous to keep in a free space. In practice, the peeling device according to the invention has been used to obtain an entity which causes very little operating noise with the solution described above.

Claims (3)

64082 A peeling device, in which a certain amount of material is collected on top of a conveyor (20) and then transferred to an envelope, comprising a transfer device (1) consisting of gripping jaws (8, 9) operated by a pneumatic cylinder (4) for gripping and releasing material, and a pneumatic cylinder (2) for moving the jaws (8, 9) and the cylinder (4), for each type of material (17), a transfer device (19) for the envelopes (18), a device (24, 25) for inserting the material into the shell, and a conveyor (21) for further displacement of the filled shell, characterized in that the cylinders (2, 4) are located substantially parallel to the cylinder (4) and at the same time also for the linear displacement of the jaws (8, 9) by means of the cylinder (2). Device according to Claim 1, characterized in that the gripping jaws (8, 9) consist of a fixed lower jaw (9) and a movable upper jaw (8) articulated thereto. Device according to Claim 1, characterized in that the operating moments and lengths of the cylinders (2, 4) as well as other actuators can be determined by means of an adjustable timing gear (13) known per se.