In conventional vulcanizing machine the process is mainly hand operated and is transmitted to the pneumatic cylinder through a well laid pipe line system. constructed as a heat consumer and is fitted with an automatic temperature. Automatic pneumatic vulcanizing Machine using heat sensorÂ Solar Water Purification by using thermal methodÂ Fabrication of Paper cup. Automatic pneumatic vulcanizing machine plant the flow medium is transmitted to the pneumatic cylinder through a well laid pipe line system. In our project is consists of heat sensor circuit, solenoid valve and Pneumatic cylinder. The heat.
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This site uses Akismet to reduce spam. Means for electronically comparing the extent of fill in containers with a preset extent. Further, a detector 71 for detecting the temperature or pressure of the vulcanizing medium is disposed in a tire or at the position located midway of a piping extending thereto so that detected value 72 of the detector 71 and preset value autlmatic of the presetting device 73 are compared with one another with the aid of a comparator 75 incorporated in the microcomputer Now a typical vulcanizing operation will be described with reference to FIG.
Owing to the arrangement of the control apparatus of the invention that a vulcanizing time prolong command is issued in response to temperature difference when temperature in the molding die is lower than the preset one, it is assured that any incorrect operation conducted by an operator can be completely prevented and moreover vulcanizing is effected under the constant working conditions at all times, resulting in an improved quality of vulcanized tires.
Next, description will be made as to a preferred embodiment of the molding die temperature control system with reference to FIG. If it is found that the former is deviated from the latter, alarming output 76 is generated and thereby the alarm such as a buzzer or the like means is actuated so as to automatically inhibit proceeding to the next cycle. The optimum position is difficult to preset. Method and apparatus for controlling the automated changing of printing plates in printing machines.
Thus, the purpose of the present invention can be fulfilled by causing the sequence timer to have a checking function corresponding to tire specification number. As described above, the step time for the introduction of vulcanizing medium into a tire and the discharging of the same therefrom and the selection of vulcanizing medium at each of the steps function are preset on the vulcanizing sequence timer and predetermined temperature and pressure of the vulcanizing medium in a tire are preset at each of the steps.
Signals from said pressure switches 80 are delivered to a comparision mechanism 81, while function signals selected at each of the steps are delivered thereto from the function output mechanism The heating coil is drawn power from the V a. A control apparatus for a vulcanizing machine in which vulcanizing is effected by introducing a vulcanizing medium into a rubber-made product loaded on a molding die and then discharging the same therefrom tio vulcanize said rubber-made product, said control apparatus comprising: In the embodiment of the invention as illustrated in FIG.
When practical operation is to be initiated, the magnetic card 25 is inserted into the card reader 2 so that the data are stored in the RAM memory. In any case the purpose of the invention can be achieved by data processing a combination of tire specification, step, function and molding die heating temperature.
Automatic pneumatic vulcanizing machine | Peerless technologies
In its simplest form, vulcanization is brought about by heating xensor with sulfur. It should be noted that the invention may be embodied in such a manner that the function signals prepared in the sequence timer II as illustrated by two dot-chain lines in FIG. The present invention relates to a control apparatus for a vulcanizing machine of the senzor in which vulcanizing is effected by introducing the vulcanizing medium into a rubber made product placed in a molding die on the vulcanizing machine and then discharging the same therefrom to vulcanize said rubber made product.
Ising, chemical process by which the physical properties of natural or synthetic rubber are improved; finished rubber has higher tensile strength and resistance to swelling and abrasion, and is elastic over a greater range of temperatures.
However, there is the fear of pneuatic incorrect presetting or forgetting of a changing operation and a problem is that deteriorated quality of finished tires due to such malfunction as mentioned above is difficult to detect visually and it is known only after they are delivered to a commercial market. Vulcanized materials are less sticky and have superior mechanical properties.
AUTOMATIC PNEUMATIC VULCANIZING MACHINE
When the tire vulcanizing machine should be kept open at a time of starting-up or for a certain reason, an operator causes another vulcanizing sequence time to be operated so as to prolong vulcanizing time. Now, the present invention will be described in greater detail below with vulcqnizing to FIGS.
Further, the microcomputer type vulcanizing sequence timer may have comparative function incorporated therein. With respect to the arrangement of various kinds of converters which may be required to equalize level of each of the inputs and outputs and occurance of deviation of temperature and pressure of vulcanizing medium from their preset values during the beginning time or due to occurance of momentary peak value they are usually neglected as long as no practical trouble takes place.
Besides them, EPROM and centralized data transmission system with a main comp connected thereto may be employed for it. To vulcanize a tire for a motorcar, the tire is heated up from both the inside and outside of the vulcanizing machine in the above-described manner but there is a necessity for a presetting a new vulcanizing operation prolonging time, platen temperature and others each time a tire specification changes.
When it is necessary to keep the vulcanizing machine opened for a long period of time at the start-up time of the vulcanizing operation or for a certain reason, there is the fear that the molding die temperature decreases would decrease and vulcanizing would thus be insufficiently effected within a period of time preset by the vulcanizing sequence timer.
Alternatively, it may be designed in a separate type. When the tire size is changed for heta reason, a magnetic card 46 with tire specification number, step time, function and molding die heating temperature inputted therein corresponding to the aforesaid tire size is inserted into the card reader 43 of the sequence timer I so machone the relevant data are stored in the microcomputer The control apparatus as defined in claim 1, wherein said vulcanizing time prolonging command is preset by said keyboard or said magnetic card, wherein both the length of time and sequential function step to be prolonged are preset.
It should be noted that the vulcanizing sequence timer unit TM is constructed in a manner well known by any expert in the art and therefore its description will not be required. Further, it is another object of the present invention to provide a control apparatus for a vulcanizing machine which assures that tires are vulcanized under constant working conditions at all times with an improved quality of tires.
The heating coil temperature is changed by adjusting the variable resistor temperature value. In addition to the above-mentioned data examples molding pressurre, die opening and closing stroke automaic others can be preset with the aid of the magnetic cards employed for the sequence time while specific detectors are additionally pneumwtic.
Method of monitoring the production of pneuatic profiles and an apparatus incorporating means for effecting such monitoring. Since the control apparatus is constructed such that pilot air pressure serving as a function signal to be delivered to the group of control valves 69 from the vulcanizing sequence timer is detected by means of the pressure switch 80, the operating state that the pilot pressure switch corresponding to function specified by the vulcanizing sequence timer is turned on is confirmed and when it is found that it is not turned on as specified, an alarm signal is issued, there is no necessity for providing additional devices or instruments such as presetting device or the like and therefore a control apparatus having a inexpensive and simple function monitoring mechanism can be provided, resulting in prevention of production of rejected products.
Accordingly, their detailed description will not be required. A control apparatus for a vulcanizing machine in which vulcanizing is effected by introducing a vulcanizing medium into a rubber made product placed in a molding die and then discharging the same therefrom is disclosed, wherein said control apparatus includes a vulcanizing sequence timer adapted to an output function signal in response to a vulcanizing operation start signal on the basis of vulcanizing data comprising preset vulcanizing steps and functions, said vulcanizing data being read by said vulcanizing sequence timer, and a plurality of control valves for controlling introduction and discharge of a vulcanizing medium in accordance with said function signal outputted from the vulcanizing sequence timer whereby sequential function of the vulcanizing machine is automatically carried out.
US4674965A – Control apparatus for a vulcanizing machine – Google Patents
The card reader 2 is constructed so as to read data on a magnetic card in which vulcanizing sequence control data such as time, function or the like are stored and thereafter keep them in memory in the sequence timer unit 1.
Learn how your comment data is processed. The term vulcanized fibre refers to cellulose that has been treated in a zinc chloride solution to cross-link the cellulose fibers. It should be noted that it is practically preferable to allow the microcomputer 62 to have an output function for the presetting device, the comparator and the alarm. As will be described later, the displaying devices 8, 9, 10 and 11 are adapted to display a number of preset values such as vulcanizing specification number, step number, step time, function number, inner pressure condition, platen temperature, platen condition and others.
This magnetic card 7 is stored as a master card and another magnetic card 7 is inserted into a reader 2 on the sequence timer unit 1 for the practical vulcanizing operation so that the data are inputted into the RAM memory. Method for controlling the state of vulcanization of wheel tires and apparatus therefor. What is claimed is: In the above-described embodiment the recording and adjusting instrument 53 has both functions of recording and adjusting.
To meet the requirement the control apparatus is designed such that time to be prolonged and step to be prolonged can be preset with the aid of the aforesaid key board or the magnetic card and moreover the preset time can be read by operating the aforesaid shifting switch.
At the same time the vulcanizing medium temperature and pressure signals 72 in a tire or a piping extending thereto are inputted into the comparator 75 as they are detected by means of the vulcanizing medium detector Next, referring to FIG.
Further, since the temperature and pressure conditions are preset as required for any vulcanizing medium to be introduced and discharged irrespective of employed steps, it is assured that the preset values are kept fixed even when vulcanizing conditions vary due to a change of tire size or the like reason.