RU2239570C2 - Tire building machine - Google Patents

Abstract

FIELD: tire industry.

SUBSTANCE: invention relates to devices designed for mounting tires on wheel disks. Proposed machine has housing, device for moving self-aligning chuck of wheel disk, and two brackets with rollers for mounting and demounting of tires, tire inflator, hydraulic and/or pneumatic actuating devices and mechanisms. Machine is furnished with control device including microcontroller and machine mechanisms condition sensors and pickups of feedback signals from actuating devices operation control circuits. Device contains also real or relative time-clock, peripheral devices wireless communications interface and nonvolatile memory with program of monitoring of control, conversion of obtained information to definite tire, entering it in definite slots of nonvolatile memory and transmission of information form nonvolatile memory by enquiry to peripheral device through wireless communications interface. Control device is made for remote control, loading and/or changing of program of functioning from peripheral devices, initialization, adjustment and testing and provision of checking of operation of peripheral devices by analyzing signals from machine mechanisms condition sensors and pickups of feedback signals from actuating devices operation control circuits.

EFFECT: enlarged operating capabilities.

1 tbl, 2 dwg

Description

The invention relates to the field of the tire industry and can be used in the tire repair industry, as well as in mechanical engineering, machine tools and others, where it is necessary to obtain the correct information about the progress of technological processes.

Famous tire changer of the Italian company SICAM brand "FALCO 1200 COMBINED", published in the brochure of the exclusive distributor of SICAM in Russia company "EUROSIV", Internet address www.eurosiv.ru.

This tire machine "FALCO 1200 COMBINED" with a hydraulic system for operating all components and mechanisms, also equipped with an electronic control device, is by far the most advanced machine tool. It works efficiently and with maximum safety with any wheels and tires.

The two-speed and powerful semi-automatic machine quickly adjusts to the type of tire changed by the operator. The hydraulic system of the machine is activated by individual switches, and the control device allows you to control the movement of all hydraulic blocks and machine mechanisms with one hand.

The self-centering cartridge movement system allows mounting and dismounting of the tire regardless of the shape and size of the disk.

Two brackets with teflon rollers moving in a symmetrical direction give the operator maximum tire mounting and dismounting efficiency without damaging the wheel disc even in the most difficult conditions.

The control system of this machine is equipped with a digital microprocessor-based pressure device that acts as a pressure gauge and control workstation for raising and lowering the rack.

At the same time, this tire changer has a significant drawback, namely, that the machine "lives" on its own, that is, all information about the technological process, the user must collect and process in real time using traditional methods of collecting and processing information.

In most cases, directly to the user, as well as to the service departments operating the tire changer, it is necessary to obtain information about the actual working time of the machine, a graph of the load intensity, and a list of error codes for the machine control system.

In turn, the management of an enterprise operating tire machines needs to receive information about the load of a particular machine, the distribution of machine downtime for making decisions about the efficient use of machines.

Machines operating in the "on its own" mode, today can not process and provide complete information that interests the user. Another disadvantage of this machine is that in the design of the machine there are no means of self-diagnosis. The control system (device) does not receive real information about the operation of the blocks, mechanisms and systems of this machine. An example of this is that when the wheel is disassembled, the torque of rotation of the wheel disc is not controlled, which can lead to serious damage to the tire itself, as well as to destruction of the machine gear units.

Another disadvantage is that in the design of the machine there are no control circuits for the operation of actuators. An example of this is that when the coils for controlling the operation of various mechanisms are broken, the machine itself continues to work uncontrollably, which sometimes leads to the destruction of individual mechanisms and devices of the machine.

The technical result of the invention "Tire assembly machine" is as follows:

1. simplification of the initialization and setup (calibration) procedure of the tire-mounting machine at the assembly stage of the product;

2. simplification of the testing procedure of the machine at the manufacturer at the stage of delivery of the product OTK;

3. simplification of the procedure for diagnosing the machine by service centers in case of malfunctions;

4. obtaining the correct information by the service departments about the actual operating time of the machine, about the start date of operation, about the list of error codes of the machine control system;

5. the ability to download the latest software to the machine control system (program update) by the service or user;

6. receipt by the management of the enterprise operating the machine or group of machines, information about the workload of machines or a particular machine during the work shift, day, week, month, etc .;

7. obtaining information on the distribution of machine idle hours;

8. monitoring the operation of the actuators of the machine by analyzing the signals from the sensors of the nodes and mechanisms of the machine, as well as from the sensors of the feedback signals from the control circuits of the operation of the actuators;

9. ensuring trouble-free operation of the nodes and mechanisms of the machine based on the analysis and control of the states of these nodes and mechanisms during the operation of the machine; when using the information coming from the control circuits of the operation of actuators, this will prevent the destruction and breakdown of machine components and mechanisms, and will also greatly facilitate the search, determination of the causes of destruction and the localization of malfunctions.

The specified technical result is achieved as follows. A tire fitting machine comprising a housing, a hydraulic system and / or a pneumatic system of the machine for controlling by means of a control device for all actuators and mechanisms of the machine, a system for moving a self-centering clamping chuck of a wheel disk, two brackets with rollers for mounting and dismounting a tire, a tire inflation device, a control device the operation of the machine, containing the microcontroller, a system of sensors connected to the machine and the inputs of the microcontroller, according to the invention additionally contains a real-time or relative time clock connected to the microcontroller of the machine’s operation, a wireless interface for communication with external devices and a non-volatile memory with a system monitoring program with the ability to convert information obtained from the monitoring results to a specific view and write it to certain non-volatile memory fields, and in the subsequent transfer of this information from non-volatile memory at the request of a superior device via a communication interface to an external device At the same time, the control system is able to carry out remote control from the external device, download and / or change the program of functioning, initialization, tuning and testing of the machine via a wireless communication interface, as well as the ability to control the operation of actuators by analyzing signals from node sensors and machine mechanisms, as well as from sensors of feedback signals from control circuits of operation of actuators.

The machine can be made with one-way communication via an interface with an external device. In this case, the proposed tire changer differs from the known one in that it contains a real-time or relative time clock, a simplex wireless communication interface and a non-volatile memory with a program for monitoring the state and operation of the system with the ability to convert information received by monitoring results, to a specific form and recording it in certain fields of non-volatile memory, and subsequently transferring it of non-volatile memory at a user's request to an external device via a wireless communication interface.

A close analogue to the proposed "tire changer" in the available scientific, technical and patent information is not installed.

As a remote analogue of the proposed device, you can take the tire changer of the Italian company SICAM according to the source of scientific and technical information [1].

Figure 1 shows schematically the proposed tire changer. Figure 2 shows a diagram of a device for controlling the operation of a tire machine, equipped with a wireless communication interface.

The proposed tire changer contains the machine itself 1 (Fig. 1), to various nodes and mechanisms of which sensors 2 are attached, which, in turn, are connected to the microcontroller of the control device 3 of the machine.

Next, the control device 3 is connected to the actuators 4, which are directly connected to the machine 1. In addition, the actuators 4 are connected to the sensors 2, which constantly monitor the state of the actuators 4 (via feedback control circuits from the actuators 4 to the sensors 2).

The following nodes and microcircuits are connected to the microcontroller 5 of the control device 3 (Fig. 2):

- panel (s) of indication and control 6;

- clock-timer real or relative time 7, made, for example, on the basis of the chip DS1307 connected to it with battery power;

- non-volatile memory chip 8, for example, AT24C256N-10SI-2,5;

- wireless communication interface 9;

- power supply 10, which generates the required supply voltage for the respective microcircuits and nodes of the tire machine and connected to them.

The external device 11 can be connected via a wireless communication channel 12 with the control device 3. The power supply 10 has a terminal 13 for supplying the mains voltage.

To the microcontroller 5 through the signal matching interface 14 receives:

- feedback signals from the control circuits of the actuators 4 through the communication channel 15;

- signals from sensors 2 on the communication channel 16.

The communication channel 17 from the microcontroller 5 receives control signals to the actuators 4.

The microcontroller 5 in combination with the display and control panel 6, the real-time clock 7, non-volatile memory 8, the wireless communication interface 9 and the power supply 10, as well as the communication channels of the sensors 2 with actuators 4 makes the control device 3 of the tire changer 1 completely new technical capabilities and properties.

The wireless communication interface 9 can be implemented and operate in four ways, and the principle of communication is shown in the table below.

In this case, according to the first embodiment, the photodetector of the wireless communication interface is made on the basis of the Vishay TSOP1236 chip, and the transmitter is made on the basis of an ordinary IR LED.

In the second embodiment, the receiver and transmitter can be performed on the Ericsson POK101007 microassembly using the Bluetooth solution.

According to the third and fourth options, communication between the tire changer 1 and the external device 11 can be performed based on combinations of communication channels of radio waves and infrared light waves.

All of the above applies to a tire changer with a wireless communication interface, which provides two-way communication of the machine with an external device.

A control device for a tire changer with a simplex (one-way) communication channel can also be made. In this case, the information transmitter is physically located on the tire changer, and the receiver is an external device 11. In this case, the information can be transmitted both by means of infrared light waves and radio waves.

The radio communication channel 12 can be performed, for example, based on microassemblies of the company RFM.

The advantage of a tire changer implemented with a simplex communication channel is that the cost of a new solution will be significantly lower (especially with an IR communication channel), since an ordinary IR LED is used as a transmitter.

The proposed tire changer, providing two-way communication with an external device, operates as follows.

Two additional programs are inserted into the body of the microcontroller 5 program:

1. a program for monitoring the state of the emergency prevention system;

2. Communication support program via wireless communication interface.

Entrance to the program data is by interruption. For the first program - by interruption from the timer (or real-time or relative-time timer clock), and for the second program - by interruption from the serial interface of the microcontroller 5. Both programs run in the background.

The system status monitoring program collects all the necessary information regarding the operation and status of the machine system, namely:

- information from primary sensors of 2 positions of actuators and machine components, pressures in the hydraulic system and pneumatic system, etc .;

- information from the outputs of control actuators;

- information on the status of machine systems;

- information from the control display panel;

- other necessary technological information.

Further, this information is decoded and its primary analysis is made in order to select the information of interest. After that, it is encoded in order to reduce the amount occupied by this information.

A special subroutine, in accordance with a certain algorithm, writes this encoded information to the cells of non-volatile memory 8.

The communication support program for the wireless communication interface 9 performs the following actions:

- reading the time values from the timer clock of real or relative time 7 and the issuance of this information in the communication channel 12 in accordance with a certain exchange protocol;

- reading and changing fields of non-volatile memory 8;

- reading information values from primary sensors;

- reading the values of information from the outputs of the executive mechanisms of the machine;

- reading and writing of certain variables and constants with which the "main" microcontroller 5 control program works;

- the issuance of values from the communication channel 12 in accordance with a specific protocol in the actuators 4 of the machine;

- changing the program memory or starting the program memory of the microcontroller 5 in accordance with the information received from the communication channel 12;

- Launching the tire changer program from a specific location with specific parameters;

- write / read resources of the microcontroller 5;

- monitoring the operation of the actuators of the machine through the analysis of signals from sensors of nodes and mechanisms of the machine, and sensors of feedback signals from the control circuits of the actuators;

- ensuring trouble-free operation of the nodes and mechanisms of the machine based on the analysis and control of the state of these nodes and mechanisms during the operation of the machine; when using the information received from the control circuits of the operation of actuators, this prevents the destruction and breakdown of machine components and mechanisms, and also greatly facilitates the search and determination of the causes of destruction and the localization of malfunctions;

- a state and signal monitoring program with a certain period of time monitors the allowed and prohibited states of the system, the validity of signals from sensors and, in the event of an emergency, detects the machine in a safe state.

Actions initiated by the user allow the exchange of information between an external device and the machine, as well as allow the control of the machine, testing and diagnostics through a wireless communication channel 12.

The above relates to the proposed machine with two-way communication via a wireless communication interface with an external device 11.

A tire changer with one-way communication with an external device 11 functions in a similar way with two-way communication, except that the communication support program via the wireless communication interface 9 is somewhat simplified.

In this case, the output of information to the communication channel 12 is carried out by long-term holding (5 seconds or more) of a certain button on the display and control panel 6 of machine 1. At the same time, the external device 11 must be put into a data standby state. The interface protocol in this case is focused on the issuance of information.

Information is produced in block packages, which include information about the unique serial number of the tire changer, the value of the real-time or relative time-clock 7, information from non-volatile memory 8, and other necessary technological information.

When making two-way or one-way communication of the proposed tire changer 1 with an external device 11 via a wireless communication interface 9, the real-time or relative time clock 7 can be designed in such a way that they can store information about both real-time change and relative time change.

Real time can be set on the timer:

- in the case of two-way communication between the machine and an external device through the influence of information on the machine via a wireless communication interface or by running a program that sets (once) the true value of the real-time clock;

- when making one-way communication from the machine to an external device, the same as described above by starting the program or by recalculating the relative time.

Recalculation and storage of relative time is especially beneficial in tire machines, where the main requirement is its cheapness.

Obtaining real time is carried out by the external device 11 by recounting from the relative, since it itself stores real time.

The information read out by the external device 11 (the computer acts as it), from the control device 3 of the tire changer is interpreted in an easy-to-read form on the display of the external device 11.

The user, having launched a special program contained in the external device 11, can test, diagnose and remotely control the machine or group of machines. Calibration (adjustment) of the machine is also carried out by launching a special program.

Sources of information

1. Tire changer of the Italian company SICAM brand "FALCO 1200 COMBINED", published in the brochure of the exclusive distributor of SICAM in Russia company "EUROSIV", Internet address www.eurosiv.ru.

Claims (1)

A tire assembly machine comprising a housing, a device for moving a self-centering chuck of a wheel disk, two brackets with rollers for mounting and dismounting a tire, a tire inflation device, hydraulic and / or pneumatic actuators and machine mechanisms, to which a machine control device including a microcontroller is connected as well as the connected to it sensors of the state of the machine mechanisms and sensors of feedback signals from the control circuits of the operation of actuators, characterized in that the machine control device includes an additional real-time or relative time clock connected to the microcontroller, a wireless interface for communicating with external devices and a non-volatile memory with a program for monitoring the machine control, converting the information received from the monitoring results to a specific form, recording it in certain non-volatile memory fields and transfers from non-volatile memory upon request via a wireless communication interface to an external device, while The machine’s operation is made with the possibility of remote control from external devices, loading and / or changing the program of functioning, initialization, configuration and testing, as well as with the possibility of monitoring the operation of executive devices by analyzing signals from the state sensors of the machine mechanisms, as well as from sensors feedback signals from control circuits of operation of actuators.

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