A kind of contact printing device able to take count of group character
Technical field the present invention relates to printing technology, more specifically to a kind of print product counting sign printing equipment.
Background technology quantity is one of important quality index of product export.When print product dispatches from the factory packing, often pack (packing) as being one group with 500 printings with fixed qty.For example, will print greatly when opening the cigarette-brand finished product that cuts into the size that meets the requirements in the trimscript operation, and need be divided into 500 one folded teller prefaces earlier.This operation by manually counting or weight and quantity being changed, is measured with meausring apparatus usually.These operations just can be carried out after all needing product to roll off the production line from automatic assembly line, consume great amount of manpower.Simultaneously, manually count, regular meeting is subjected to the influence of operating personnel's the workmanship and the state of mind and causes error, and the weighing metering is subjected to paper all to spend influence with situation such as weather humidity again.Quantity for a long time, the client generally can not reflect, but causes economic loss to enterprise, quantity client after a little while can be complained immediately, has had a strong impact on the image of enterprise.
Though general printing equipment has counting device, only be used for adding up the machine action frequency, can be used as the statistics of teams and groups' output, can't be used for the group character of printed matter quantity.According to the knowledge of the applicant, in group character is used, also have by making paper slip or labelled counting device, but such apparatus structure complexity, bulky, generally be when making printing machinery, just to design, whole printing equipment and this class beat paper slip or labelled counting device is supporting, its installation is subjected to the influence of existing equipment structure, promptly can not install on general existing printing equipment.
Summary of the invention the purpose of this invention is to provide a kind ofly can on existing printing equipment, install, can be according to the quantity of setting to the online contact printing device that carries out group character of printed matter.
Technical scheme of the present invention is design like this: it is installed in existing printing equipment collection end, the printing equipment, the time delay relay circuit that comprise logic controller, directly contact with print product surface, the count pulse of original printing equipment Photoelectric Detection is as the count pulse input of logic controller, and logic controller output identification print signal triggers the printing equipment that time delay relay circuit directly contacts with control and print product surface.
In order to guarantee print quality better, the above-mentioned printing equipment with the print product surface directly contacts can design like this: it comprises air valve, prints cylinder, atom print, printing cylinder connects with air valve, atom print is contained on the piston rod of printing cylinder, and logic controller output identification print signal triggers time delay relay circuit with the control air valve.
The above-mentioned printing equipment with the print product surface directly contacts also can design like this: it comprises air valve, printing cylinder, China ink wheel, printing cylinder connects with air valve, the China ink wheel is contained on the piston rod of printing cylinder, and logic controller output identification print signal triggers time delay relay circuit with the control air valve.
In order to make above-mentioned time delay relay circuit have the effect of time-delay and signal amplification, its circuit can design like this, and an end of the coil of contact-relay KA1 is connected with the output signal of logic controller, an end ground connection; A branch road of coil one end of contact-relay KA2 is connected with the live wire of AC power by the normally opened contact of contact-relay KA1, another branch road is connected other end ground connection by the normally opened contact of contact-relay KA2, the normally-closed contact of time-delay relay KT with the live wire of AC power; A branch road of coil one end of time-delay relay KT is connected with the live wire of AC power by the normally opened contact of contact-relay KA1, another branch road is connected other end ground connection by the normally opened contact of contact-relay KA2, the normally-closed contact of time-delay relay KT with the live wire of AC power; The end of magnetic valve Y is connected other end ground connection by the normally opened contact of contact-relay KA2 with the live wire of AC power.
In order to make above-mentioned contact printing device simple in structure, above-mentioned logic controller can be a PLC plc.
For the function of the print signal that enriches above-mentioned contact printing device, above-mentioned logic controller can be a computer.
Be convenient to when producing the different size product, adjust print position in order to make above-mentioned contact printing device, the above-mentioned printing equipment that directly contacts with the print product surface can laterally be installed in two ends movably and be fixed on the fixed bar on the frame, and fixed bar is also in parallel above defeated leatheroid band power transmission shaft.
The above-mentioned printing equipment that directly contacts with the print product surface can be installed in the elongated hole on the fixed bar, and can laterally adjust the position of printing equipment in elongated hole.
The present invention is owing to be installed in the collection end of existing printing equipment, the count pulse of original printing equipment Photoelectric Detection is as the counting input of logic controller, logic controller output identification print signal control printing equipment is so can carry out the group character printing to printed matter is online according to the quantity of setting.Be fixed on the fixed bar on the frame if will can laterally be installed in two ends movably, also be adapted to adjustment print position when production different size product with the printing equipment that print product surface directly contact.Therefore the present invention can be installed on the prior printing equipment widely, and the group character that is used for printed matter quantity is printed, and can save great amount of manpower and material resources, reduces counting error, has improved operating efficiency greatly.
Description of drawings
Fig. 1 is the apparatus structure schematic diagram of the embodiment of the invention.
Fig. 2 is the electrical schematic diagram of the embodiment of the invention.
Among Fig. 1: 1, printed matter; 2, atom print; 3, logic controller; 4, count pulse input; 5 compressed air; 6, time delay relay circuit; 7, air valve; 8, print cylinder.
Among Fig. 2: KA1, KA2 are contact-relay, and KT is a time-delay relay, and Y is a magnetic valve.
The invention will be further described below in conjunction with drawings and Examples.
The contact printing device of the group character among the specific embodiment embodiment, comprise: air valve 7, print cylinder 8, atom print 2, PLC plc 3 (logic controller of this moment can adopt the PLC plc), time delay relay circuit 6.Time delay relay circuit 6 can design like this, and an end of the coil of contact-relay KA1 is connected with the output signal of logic controller, an end ground connection; A branch road of coil one end of contact-relay KA2 is connected with the live wire of AC power by the normally opened contact of contact-relay KA1, another branch road is connected other end ground connection by the normally opened contact of contact-relay KA2, the normally-closed contact of time-delay relay KT with the live wire of AC power; A branch road of coil one end of time-delay relay KT is connected with the live wire of AC power by the normally opened contact of contact-relay KA1, another branch road is connected other end ground connection by the normally opened contact of contact-relay KA2, the normally-closed contact of time-delay relay KT with the live wire of AC power; The end of magnetic valve Y is connected other end ground connection by the normally opened contact of contact-relay KA2 with the live wire of AC power.Printing cylinder 8 connects with air valve 7, atom print 2 is contained on the piston rod of printing cylinder 8, the count pulse of original printing equipment Photoelectric Detection is as the count pulse input 4 of PLC plc 3, and PLC plc 3 output identification print signals trigger time delay relay circuit with control air valve 7.Be installed in two ends with printing equipment that print product surface directly contacts and be fixed on the fixed bar on the frame, fixed bar is also in parallel above defeated leatheroid band power transmission shaft.Have elongated hole on the fixed bar, be installed in the elongated hole and can laterally move adjustment atom print position along fixed bar with the printing equipment that the print product surface directly contacts.
Below, the use of present embodiment is described further.
The count pulse of original printing machine Photoelectric Detection is imported as the count pulse 4 of programmable logic controller (PLC) PLC, PLC is to the count pulse counting of input, wherein pre-set programmed logic is compared count number with the number of packet of setting, when count number reaches predefined number of packet, PLC triggers an output signal gets contact-relay KA1, to count zero clearing simultaneously also adds up again, the normally opened contact closure of contact-relay KA1 makes contact-relay KA2, time-delay relay KT simultaneously.After the normally opened contact closure of contact-relay KA2, on the one hand by the normally-closed contact of time-delay relay KT realize electric self-insurance, magnetic valve Y is got, drive the switch of air valve 7, compressed air 5 presses down the piston of cylinder 8 rapidly through air valve 7, drives the atom print 2 that is contained on piston rod, atom print 2 is contacted with printed matter 1, on the designated edge position of printed matter 1 (slitter edge), stay the classified counting sign.When air valve 7 was opened, time-delay relay KT started working, and the delay time one of time-delay relay KT arrives, its normally-closed contact is opened, and cuts off the power supply of contact-relay KA2, makes magnetic valve Y dead electricity, air valve 7 is closed, and cylinder piston rises and resets, and finishes the group character print procedure.Like this, in the following process operation, can divide into groups, guarantee that product quantity is accurate according to this sign.
Because contact printing device is installed in can laterally move along fixed bar in the elongated hole of fixed bar and adjusts the atom print position in the present embodiment, so can be adapted to adjust print position when producing the different size product.And itself is simple in structure, volume is few, is not subjected to the influence of this equipment original structure when installing on existing printing equipment, does not also influence the original function of existing equipment, can be according to the quantity of setting to the online printing equipment that carries out group character of printed matter in printing equipment.After in existing printing equipment, the present invention being installed, can save great amount of manpower and material resources, reduce counting error, improve operating efficiency greatly.
Number of packet described in the such scheme can be set arbitrarily by PLC or other counting device.
The above-mentioned printing equipment with the print product surface directly contacts of the present invention is not limited to the atom print of enumerating in the above embodiments, also can be that the China ink wheel waits contact printing device.
Logic controller of the present invention is not limited to the PLC plc of enumerating among the embodiment, also can be a computer or other counting devices.
The fixed form of printing equipment of the present invention and existing printing equipment, with and can all be not limited to the mode of enumerating in the foregoing description according to producing the mode of different size product adjustment with the surperficial printing equipment that directly contacts of print product.