SU761300A1 - Apparatus for delivering and pressing folded signature stacks - Google Patents

Description

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The invention relates to printing machines and is intended for the acquisition of packs of a specified number of folded sheets (notebooks), coming in a cascade of printing, folding and other machines. ....

A device for receiving and pressing ₇ packs of folded sheets, comprising a mechanism for forming packs of folded sheets with feed and rotary conveyors, a guide table located between the branches of the pushing conveyor, supporting an abutment mounted on it movably, and a pressing mechanism consisting of power cylinder with reinforced on its rod pressing fingers associated with a swivel bracket [1].

However, such a device is not convenient to maintain due to the need to manually move the pack in the pressing area and the location of the pressing section under the guide table.

In order to improve reliability and ease of maintenance, the proposed device has a latch for the position of the supporting stop, an associated electromagnet and is mounted on the way

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moving the support stop limit switch connected to the electromagnet. The base of the supporting stop is made of magnetic

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The drawing schematically shows the described device.

Device for receiving and pressing

packs of folded sheets contains a mechanism for forming packs, which includes conveyor 1 with squeeze rollers 2 located at the entrance, equalization mechanism 3 and counting sensor of 4 notebooks, and a rotary conveyor formed

15 upper 5 and lower 6 ribbons, a horizontal table guide 7, a pushing conveyor 8, in front of which is a corrugated roller 9. On the table 7 there is a adjustable support stop 10, made of a light alloy with a magnetic base 11. A separator of 12 notebooks is installed above the pushing conveyor .

The pressing mechanism consists of pneumatic motors 13 and 14 and pressing fingers 15 located above the table and fastened on the rod of the pneumatic cylinder 14, fixed on the swivel bracket 16.

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The device also has a lock 17 of the position of the stop 10, an associated electromagnet 18 and a limit switch ’19 mounted on the path of movement of the stop 10 connected to the electromagnet 18.

The device works as follows.

The notebooks coming out of the printing machine in the form of a cascade flow arrive at the supply conveyor 1, on which they are compressed with the help of squeeze rollers 2, the alignment mechanism 3 is aligned and the counting sensor 4 is calculated. Moving further between the tapes 5 and 6, the notebooks take a vertical position. On a horizontal table 7 with the help of a grooved roller 9, pushing the conveyor 8, the package is assembled. The pack is kept from scattering by means of a movable stop 10 with a magnetic base 11, thanks to the latter, the resistance value when moving the stop along the guides is fully preserved. After counting using a counting sensor 4 of a specified number of notebooks, a command is sent to the selector of 12 notebooks, and it triggers, causing one notebook to rise above the top surface of the pack 20. Then this pack is manually moved away from the bundle pack 21 again and entered into the gap between them gaskets 22 and 23 and the support stop 10. With further movement of the pack 20 on the table 7 under the action of the pushing conveyor 8, the stop 10 presses the limit switch 19 and gives a signal to lower the pneumatic cylinder 14 and press After pressing, when they reach the rightmost position with their fingers, they press the limit switch 24, after which the compressed pack 13 is rotated to the vertical position in which it is tied with straps. After tying '' ’with

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ki is given a command to repress packs, and the pressing fingers 15 are moved to the initial position. After removal of the tied pack, the cycle is repeated.

5 "The control mechanism (detent 17) is made in the form of a stop moved in the vertical direction by an electromagnet 18 through a system of levers. When" pressing the stop 10 on the limit switch 9, the detent10 rises to the upper position and is located to the right of the stop 10. Detent 17 lowers when turning pneumatic cylinder 14 in a horizontal position. In the case of a delay in lowering the pneumatic cylinder 14 15, the clamp 17 delays the movement of the stop 10 to the right and the pressing fingers 15 will always be guaranteed inserted into the interval between two packs.

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Claims (2)

Claim 1. A device for receiving and pressing packs of folded sheets, containing a mechanism for forming the packs of folded sheets with inlet and pivot 25 conveyors located between the branches of the pushing conveyor guide table, supporting stop mounted on it to move, and the pressing mechanism 30m consisting of a power cylinder with pressing fingers fixed on its rod, associated with a swivel bracket, characterized in that increase reliability and 35 for serviceability, it has a latch for the position of the supporting stop, an associated electromagnet and a limit switch mounted on the path of movement of the supporting stop, connected to the electromagnet. 2. Device by π. 1, that is, in that the base of the supporting support is made of magnetic material.