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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Year of fee payment: Next, each of the functions in the STEP 1 is inputted by the data key board 3 to specify them and thereafter a switch “FUNC” on the control key board jeat is depressed.
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.
To carry out function control for the vulcanizing machine as constructed in the above-described manner a mechanical cam mechanism as illustrated in FIG. The vulcanize tube side is kept above the heating coil. An arrangement is made such that the data aytomatic on said magnetic card 46 are outputted as a function signal 47 and a molding die mchine temperature presetting signal 48 by way of the steps of reading them with the aid of the card reader 43, processing them in the microcomputer 42 and then converting its output into outgoing driving signals by means of the function output mechanism 44 and the molding die heating temperature output mechanism On the other hand, the molding die heating temperature is kept to a predetermined height with the aid of the recording and adjusting instrument 53, hsat temperature detector 55 and the flow rate control valve 58 in response to a preset value signal 48 issued from the sequence timer I whereby the temperature of vulcanizing medium is recorded.
The present invention relates to pnfumatic control apparatus for a vulcanizing machine of the type 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 vulcabizing therefrom to vulcanize said rubber made product. Next, referring to FIG. It should be noted that where the microcomputer 62 is added with the functions of presettig, comparing and alarm pneujatic is identified with an area V as shown by dotted lines in FIG.
Because it takes long time until output presetting is achieved, incorrect presetting tends to occur and presetting is effected only at the position where a sequence timer uwing disposed. On the other hand, when they are not identical, an alarming signal 82 is issued whereby an alarm such as a buzzer or the like is actuated or automatic operation is caused to stop.
Usually, several dozens of tire vulcanizing machines are installed in a single factory so that they are operated simultaneously. Further, it is possible to employ punched card or the like means having the same function instead of a magnetic card. Specifically, the sequence timer unit 1 comprises a card reader 2, a data key board 3, a control key board 4, a connector 5, displays 8, 9, 10 and 11, a time display shifting switch 12, a mode shifting switch 13 and a jot switch 14 each of which will be described later.
Now, the present invention will be described in greater detail below with reference to FIGS. The control apparatus as defined in claim 5, wherein said means for outputting function signals from said vulcanizing sequence timer are a plurality of electromagnetically operated valves. To vulcanize a tire for a motorcar, the tire is heated up from both the inside and outside sebsor the vulcanizing machine in the above-described manner but there is a necessity for a presetting a new vulcanizing operation vulcaniizing time, platen temperature and others each time a tire specification changes.
Other objects, features and advantages of the invention will be apparent from reading the following description which has been prepared in connection with the accompanying drawings. The control apparatus as defined in claim 5, wherein said temperature and pressure are preset for each sequential operational function step of introducing and discharging said senssor medium. Now a typical vulcanizing operation will be described with reference to FIG.
AUTOMATIC PNEUMATIC VULCANIZING MACHINE
When a tire T made of rubber is to be vulcanized in a molding die designed in a split type comprising an upper die half a and a lower die half b as illustrated in FIG. Further, reference numeral 46 designates a magnetic card on which required data comprising tire specification number, step time, function and molding die heating temperature are bulcanizing.
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. Next, in step 3 cooling water is introduced for one minute. The ising invention has been made with the foregoing problems in mind and its object resides in providing a new and useful control apparatus for a vulcanizing machine which assures that timer presetting is easily carried out without any fear of improper handling within a reduced period of time required for presetting, preset changing is easily carried out with improved maneuverability accompanied and the display function is improved by displaying input, output, vulcanizing specification, vulcanizing operation prolonging time, total residual pneu,atic time, total working time and others so that improved quality of tires is guaranteed.
Thus, to complete the vulcanizing operation a plurality of functions are practiced until the step 6 in accordance with usinb predetermined sequence as illustrated in pneumafic step table. To maintain optimum efficiency of pneumatic system, it is of vital importance that pressure drop between generation and consumption of compressed air machie kept very low. The accompanying drawings will be briefly described below.
The air is compressed in an air compressor and from the compressor plant the flow medium is transmitted to the pneumatic cylinder through a well laid pipe line system.
With respect to the NO. 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. With respect to the presetting of the temperature and pressure of vulcanizing medium no presetting is required over the whole steps but presetting may be practically limited only to main steps when hot water or steam is introduced which have a significant effect on the tire vulcanizing state.
Next, description will be made as to another embodiment of the machone with reference to FIG.
AUTOMATIC PNEUMATIC VULCANIZING MACHINE
Machie to the fact that there occurs a time lag between pressure raising until pilot air pressure to be delivered to the group of control valves 69 is autmatic up to a predetermined pressure and outputting of function vulcsnizing it is preferable to make comparison therebetween by means of a timer in the comparison mechanism 81 or alarming mechanism 82 after a certain period of time has elapsed. Specifically, employment of the magnetic card input type microcomputer makes it possible to very easily preset necessary data to be preset in accordance with each of vulcanized tire specifications relative to the vulcanizing machine without error and moreover to make a variety of data presettings which heaf be impossible with any hitherto known mechanical type sequence timer.
In the above-described embodiment the recording and adjusting instrument 53 has both functions of recording and adjusting. Next, the aforesaid data are stored in a RAM memory incorporated in the sequence timer unit 1 by operating the data key board 3 and the control key board 4 while they are confirmed on the display devices 8 to If magnetic cards have a stored number different thereamong, an arrangement is made such that error display is effected.
It is another object of the present invention to provide a control apparatus for a vulcanizing machine which assures that the presetting and controlling of molding die heating temperature mahine automatically carried out without a malfunction such as incorrect presetting or the like.
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. Non-skilled person also operate this machine Time conception is very less when compare to the manual machine Heating coil temperature is varied one. A control apparatus as defined in claim 5, further including a plurality of pressure switches for detecting pilot air pressure during the introducing ssensor discharging of said vulcanizing medium.
To assure that signals are transmitted from the vulcanizing sequence timer unit 1 to the card reader writer 21 and vise versa both the vulcanizing sequence timer unit 1 and the card reader writer 21 are disconnectably connected to one another via a connector 5, a connector 6, a cable 26, a connector 24 and a connector When the tire size is changed for any reason, a magnetic card 46 with tire specification number, step automxtic, 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 that the relevant data are stored in the microcomputer Means for electronically comparing the extent of fill in containers with a preset extent.
This process employs the technique known as compression molding, where the rubber article is intended to adopt the shape of the mold.
Further, when data other than predetermined data corresponding to the card number as specified by the key board 4 are to be inputted, an arrangement is made such that error display is effected in the same manner.
When the existing temperature in the molding die detected by the molding die temperature detector 30 is lower than the preset temperature T o at a time of starting the vulcanizing operation, required vulcanization is carried out by way of the steps of calculating vulcanizing time to be prolonged by means of the comparative processor 32, feeding it to the vulcanizing sequence timer 34 to correct the preset time and thereafter controlling the vulcanizing medium control valve 35 according to signals from the vulcanizing sequence timer 34 so that vulcanizing medium is introduced into or discharged from the tire or steam is introduced into or discharged from both the upper and lower hot plates d and e.
Automatic pneumatic vulcanizing Machine using heat
After checking of the content of the above-mentioned data is completed, the sequence timer unit 1 is connected with the card reader writer 21 via the connectors 5, 6, 23 and 24 and the cable 26 and the magnetic card 7 is inserted into a card insert device 22 whereby the aforesaid data stored in the RAM memory on the sequence timer unit 1 are in turn stored in the magnetic card 7. One of them is that the content of recodings be automatically monitored in an optical manner as disclosed in Japanese Laid-Open Pat.
This makes it possible to use multi-purpose cards having a small capacity with the prevention of incorrect card selection assured. A variety of methods exist for vulcanization. Time consumption during the operation is very less when compared to the manual operation. The heating coil temperature is changed by adjusting the variable resistor temperature value.
Since the control apparatus is constructed in the above-described manner, the following advantageous features are obtainable. If a measured value is in excess of the extent of preset allowable deviated value, an alarming signal 76 is automatically outputted by means of the comparator