摘要:
The supply of consumables and other materials to production machines in a system for the manufacture of tobacco products is managed using a method whereby, once a nominal target number of products has been programmed at a master control unit, a tally is kept of the number of products emerging from the machine located farthest downstream, and a corresponding signal relayed back to the master control unit, together with a signal indicating the consumption of the various types of material. On the basis of the information received, the master control unit will process an output message indicating the requirement for at least one given type of consumable or wrapping or other auxiliary material to be supplied, whereupon the message is sent to an operator entrusted with the task of replacing the depleted material.
摘要:
A density inspection apparatus and method. The apparatus is disposed downstream of a wrapping section of a cigarette manufacturing machine. In accordance with pulse output signals generated by a rotary encoder in synchronism with the travel of a cigarette rod, a zone of the rod is subjected to density inspection. An actual density signal indicating the tobacco shred filling density in the inspected zone is intermittently supplied from a density detector, and a group of reference density signals indicative of a change in density of a low-density portion of a dummy cigarette is supplied from a storage device. A difference between each actual density signal and a corresponding reference density signal is calculated, and the square sum of the signal differences in respect of all the density signals is calculated to determine a nonconformity degree between the actual and reference density signals. If the nonconformity degree of any one of the zones of the cigarette rod portion is small, this rod portion is determined as having a high possibility of including a local low-density portion.
摘要:
An arrangement determines the height of a multilayer stream of articles such as the rod-shaped cigarettes of the tobacco industry. The arrangement includes a flexible elongate member connected to move up and down with the uppermost articles in the multilayer stream as the height thereof varies. The flexible elongate member has a first end fixed in place and an opposite end connected to a weight which moves in a vertical direction as the flexible elongate member moves up and down in response to the height of the multilayer stream of articles. The flexible elongate member is trained around an idler roller, and a sensor is spaced directly below the weight for determining the elevation thereof. Such elevation is directly related to the height of the multilayer stream of articles. A conveyor system having a variable drive moves the multilayer stream of articles along a predetermined path of travel, and a control between the sensor and the conveyor drive varies the drive in response to varying elevations of the weight. When the weight is further away from the sensor, the height of the multilayer stream is excessive, and the conveyer drive is decreased to thereby lower the height of the stream to within predetermined levels. Conversely, when the weight is closer to sensor, the height of the multilayer stream is low, and the conveyor drive is increased to raise the height of the multilayer stream to within predetermined levels.
摘要:
A method of and system for detecting glue skips on tipping paper used to secure filters to cigarette tobacco rods and the rejection of defective cigarettes based thereon in which a particle radiation sensor is used to monitor the amount of glue applied to the tipping paper and a laser edge detector is used to monitor for proper alignment of the tipping paper during cigarette tipping operations in a typical cigarette manufacturing machine. The signals output from the particle radiation sensor are fed to a skip detection system which produces an output signal upon detecting a glue skip or a loss of glue. The glue skip or loss of glue signals as well as the paper edge detection signal produced by the laser edge detector are all fed to a programmable logic controller which, upon detecting a defective condition, generates a cigarette reject signal which is fed to the cigarette rod rejection system of the typical cigarette manufacturing machine in order to prevent the defective cigarettes from entering the stream of commerce.
摘要:
A method and apparatus for inspecting cigarette paper of eventual cigarette bar unit, which permit further improvement of the precision of inspection, is provided. According to the method and the apparatus, the mean, variance and standard deviation are obtained statistically through a detected pressure signal, then transformation of their normal distribution into a standard normal distribution of N(0,1) where the mean with respect to the probability density function .PHI.(t) is 0 and variance with respect to thereto is 1, is obtained. And the estimation of population standard deviation with setting of a significance level is done with the value of t with respect to the probability determined solely by determining the probability in the normal distribution, thereby effecting a decision as to whether the inspected product is non-defective or defective.
摘要:
Method of monitoring a line of adhesive deposited on a travelling paper web to check for accidental omission of adhesive wherein the adhesive has a distinguishing relative permittivity and is sensed by a capacitive proximity sensor. The web may be plugwrap material for cigarette filter rod, the adhesive being provided to anchor filter tow in position when the plugwrap is wrapped around it. The method avoids various disadvantages associated with other automatic monitoring devices such as optical devices and infra-red devices.
摘要:
A cigarette filter attachment machine with a wrapper testing facility includes means for feeding pieces of tipping paper each of which is wrapped around associated tobacco and filter portions to join those portions to one another; means for testing the wrappers of the cigarettes for leaks; an upsetting device for momentarily upsetting the filter tipping operation to produce at least one cigarette with a deliberate leak in the joint between the tobacco and filter portions; and an ejection device arranged automatically to eject the deliberately faulty cigarette or cigarettes regardless of whether or not the wrapper tester detects the deliberately faulty cigarettes.
摘要:
The operation of parts or groups of parts in discrete machines or groups of cooperating machines for the treatment, processing and/or transport of plain or filter-tipped smokers'' products and/or their components is monitored by discrete detectors. The detectors produce signals in response to detection of malfunctions of the respective parts or groups of parts. Such signals are utilized to stop one or more machines as well as to operate circuits or devices which count and record the number of malfunctions of each part or group of parts within a selected period of time, and which also record the length of intervals of idleness of one or more machines as a result of malfunctioning of each part or group of parts as well as the ratio of intervals of idleness to the length of a selected period, such as a day''s shift or a week.