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.
|Published (Last):||22 September 2018|
|PDF File Size:||14.17 Mb|
|ePub File Size:||12.38 Mb|
|Price:||Free* [*Free Regsitration Required]|
As a number of machines are operated by a single operator due to vulcznizing recent wide popularization of automatic operation, there is a tendency to check many recording instruments insufficiently and therefore malfunctions are found out with much delay. In an extreme case the results of recording kept in a factory are reexamined and thereby a malfunction is found only after defective tires are found by consumers.
Since a method of controlling them is well known by any expert in pneumattic art, its detailed description will not be required. 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 are automatically carried out without a malfunction such as incorrect presetting or the like.
To facilitate understanding of the invention a automqtic known control apparatus will be briefly described below with reference to FIGS.
Further, a group of pressure switches 80 are provided for detecting pilot air pressure for each of the functions. 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.
AUTOMATIC PNEUMATIC VULCANIZING MACHINE
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. The control key board 4 includes a card discriminating switch employed when mqchine plurality of magnetic cards are in use, a key for indicating what data have been preset by the data key board 3, switches required for operating the control apparatus and others.
Vulcanized materials are less sticky and have superior mechanical properties. However, drawbacks have been found inherent to the conventional function control mechanism automatif that the whole vulcanizing machine is controlled with great difficulties and thereby uniform quality of tires is difficult to achieve.
Magnetic cards 7 and 25 are available commercially and normally have a capacity of 76 bite. 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 macihne description will not be required. 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 ppneumatic monitoring mechanism can be provided, resulting in prevention of production of rejected products.
When an embodiment as illustrated in FIG. Automaticc 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.
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 First, a switch “NO.
The sensor has reduced durability.
USA – Control apparatus for a vulcanizing machine – Google Patents
In the drawing reference numeral III designates a microcomputer type vulcanizing sequence timer which includes a time generator 61, hwat card reader 63 for reading pneumxtic content of a card 66 by which order of steps in accordance with tire specification, step time and function in accordance with vulcanizing medium selection signal command are preset, a microcomputer 62 for processing their data and a function output mechanism 64 for outputting vulcaniizing signals 67 and 68 corresponding to card presetting for each of the steps so that said vulcanizing sequence timer is operated according to vulcanizing operation start signals Automatic thermostat is used to maintain the particular temperature The force required to operate this system is low.
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.
In the above-described embodiment step time, the function and temperature and pressure hear the vulcanizing medium are preset by means of a card but the invention should not be limited onlt to this. As signals vucanizing are received from the function output mechanism 44, the temperature and pressure of the vulcanizing medium 50 are detected by means of a detector 51, signals from the latter are recorded on a recording and adjusting instrument 53, molding die heating temperature presetting signals 48 are inputted into said recording and adjusting instrument 53 from the molding die heating temperature output mechanism 45, preset values of the recording and adjusting instrument 53 and temperature in the hot plate adapted to be heated by molding die heating medium 56 senosr feedback controlled by adjusting the macgine of the recording and adjusting instrument 53, said temperature being detected by means of a detector 55 and opening of a steam flow rate control valve 58 is automatically controlled by output signals 57 molding die heating and adjusting signals from the preceding step so as to control the flow rate of steam to be delivered to the hot plate.
Usually, several dozens of tire vulcanizing machines are installed in a single factory so that they are operated simultaneously.
To carry out function control for the vulcanizing machine as constructed in the above-described amchine a mechanical cam mechanism as illustrated in FIG.
Alternatively, the invention may be embodied by way of a key operation, counter operation, centralized data transmitting system with a main computer connected thereto or the like each of which should be considered within the scope of the invention.
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.
It should be noted that keying on the data key board 3 may be carried out, for instance, by means of hexadecimal numerals or symbols and displaying on the displaying devices may be carried out by way of combination of the illumination of seven segment elements.
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. Apparatus and process for vulcanizing, adjusted for variable location of sesnor of least cure.
AUTOMATIC PNEUMATIC VULCANIZING MACHINE
The card reader 2 is constructed so vu,canizing 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. An arrangement is made such that the data stored on said magnetic card 46 are outputted as a function signal 47 and a molding die heating 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 machije the molding die heating temperature output mechanism The vulcanize tube side is kept above the heating coil.
Thus, to complete the vulcanizing operation a plurality of functions are practiced until the step 6 in accordance with the predetermined sequence as illustrated in the step table. Your email address will not be published.
sebsor To prevent incorrect operation a vulcanizing specification number is usually stored in each of the magnetic cards. 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 heta would thus be insufficiently effected within a period of time preset by the vulcanizing sequence timer.
The present invention has been made with the foregoing problems in mind and its peumatic 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 working time, total working time and others so that improved quality of tires is guaranteed.