摘要:
There is described a multicolour letterpress printing press, in particular a numbering press, comprising a printing group (50) with at least a first letterpress (e.g. numbering) cylinder (51) which is inked by an associated inking system (60, 71, 72, 81, 81 a, 81 b, 82, 82a, 82b). The inking system (60, 71, 72, 81, 81 a, 81 b, 82, 82a, 82b) comprises (i) a first inking device (81) supplying ink to a first chablon cylinder (71), (ii) at least a second inking device (82) supplying ink to a second chablon cylinder (72), and (iii) an ink-collecting cylinder (60) contacting the first and second chablon cylinders (71, 72) and collecting a first ink pattern (A, D) from the first chablon cylinder (71) and a second ink pattern (B, C) from the second chablon cylinder (72). As a result, a first multicolour pattern of inks (A-D) is formed on the ink-collecting cylinder (60), which first multicolour pattern of inks (A-D) is transferred onto the first letterpress cylinder (51).
摘要:
This invention discloses a numbering and imprinting machine including a number cylinder, moving inker, first cleaning device, second cleaning device, inker position detector, and control device. The number cylinder includes at least one numbering device. The moving inker includes a number inker which supplies ink onto the number cylinder, and is movable between a printing position at which the number inker comes into contact with the number cylinder, and a retraction position at which the number inker separates from the number cylinder. The first cleaning device cleans the number cylinder. The second cleaning device cleans the number inker. The inker position detector detects the position of the moving inker. When the inker position detector detects that the moving inker is set at the printing position, the control device rotates the number cylinder, drives the number inker and controls cleaning operations by the first cleaning device and the second cleaning device.
摘要:
There is described a process for numbering substrates having security prints printed thereon, each of the substrates comprising a plurality of security prints which are arranged in k columns and n rows on the substrate, wherein product k*n is an integer multiple of ten or of twenty-five. The process comprises the step of numbering successive runs of 10N substrates each, by providing each of the security prints with a serial number Serial#, the serial number Serial# being calculated with the formula: Serial# = Start# + α*[(r - 1 )*k*n*10N + ((i - 1 )*n + (j - 1 ))*10N + MOD(s - 1 ; 10N)], where Start# is a starting number from which numbering starts, α is equal to -1 or +1 depending on whether numbering is carried out downwards or, respectively upwards, r identifies the run of 10N successive substrates, i and j respectively identify the column and the row on the substrate where the security print to be numbered is located, s is a number which identifies the substrate onto which the security print to be numbered is located and MOD(x; y) designates the so-called modulus function which returns the integer remainder of the division of y by x. Digits N+2 and N+1 of the serial number Serial# are produced by sequential actuation of a double numbering wheel (13, 14) bearing a predetermined sequence of digit pairs for digits N+2 and N+1. Also described are numbering boxes to carry out the numbering process.
摘要:
A rotor unit comprises a rotor cylinder (33) fastened to a shaft (31) and rotatably mounted on an external bearing (132). A geared motor (62, 62') arranged inside the unit drives a first double gear wheel (165) in both directions of rotation (a, b) by means of its drive shaft (63) and a pinion (163). The double gear wheel (165) is mounted on a disk (185) and a bearing plate (193) in a free-wheel bearing and engages with a second double gear wheel (175). In one direction of rotation (b), the free-wheel bearing (171) blocks the gear wheel (165), which is therefore rigidly entrained, together with the disk (185), by the pinion (163). The second double gear wheel (175) then engages serially with an intermediate wheel (179), the engagement being precisely positioned by a ball catch (136). In the other direction of rotation (a), the motor (62) causes each of the above-mentioned wheels to turn a numbered wheel (180) and thus sets, for example, one digit of the value stamp of the franking machine. All the digits of the value stamp, the date stamp and other stamps are automatically set by alternate rotation in both directions of rotation (a, b). The motor (62) receives commands from a control unit outside the rotor cylinder (33) via rubbing contacts (61).
摘要:
The invention relates to a numbering device (100) with numbering wheels (108) which are arranged adjacently on an axis and which can be used in order to press symbols when rotated into a pressing position (115). At least one of the numbering wheels (108) of the numbering device (100) is driven by a motor (109, 110). The numbering wheels (108) driven by motors (109, 110) have at least one magnetic, optical, or inductive marking (131), and the numbering device (100) has at least one sensor (130) for detecting magnetic, optical, or inductive markings (131). At least one motor (109, 110) has an encoder (121) for monitoring the motor movement, and the numbering device (100) has an electronic monitoring unit (140) which communicates with the at least one sensor (130) and the encoder (121) of the at least one motor (109, 110) for signaling purposes. The electronic monitoring unit (140) has a storage unit (142) in which at least one encoder position is stored in which a magnetic, optical, or inductive marking (131) of a numbering wheel (108) must be detected by the sensor (130) during a proper operation, and the electronic monitoring unit (140) is further designed to check whether a magnetic, optical, or inductive marking (130) for a numbering wheel (108) has been detected by the sensor (130) upon reaching or exceeding an encoder position stored in the storage unit (142) for the corresponding numbering wheel (108). The invention also relates to a method for monitoring the position change of the numbering wheels (108), having the steps of ascertaining correlation data between the encoder signal and the signal of the sensor (130), storing the correlation data in the storage unit (142) of the electronic monitoring unit (140), and checking whether the relationship between the encoder signal and the signal of the sensor (130) corresponds the correlation data stored in the storage unit (142), said relationship being determined in the ongoing operation of the numbering device (100).