CN113296476A - Electrical automatic control system of rubber unloading process machinery of natural rubber primary processing production line - Google Patents

Electrical automatic control system of rubber unloading process machinery of natural rubber primary processing production line Download PDF

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Publication number
CN113296476A
CN113296476A CN202010109831.8A CN202010109831A CN113296476A CN 113296476 A CN113296476 A CN 113296476A CN 202010109831 A CN202010109831 A CN 202010109831A CN 113296476 A CN113296476 A CN 113296476A
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China
Prior art keywords
rubber
unloading
glue
vehicle
motor
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CN202010109831.8A
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Chinese (zh)
Inventor
张宝珍
樊军庆
陈家林
苏恒宇
王世兴
霍志浩
马雨佳
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Hainan University
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Hainan University
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/414—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
    • G05B19/4147—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller characterised by using a programmable interface controller [PIC]
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34013—Servocontroller

Abstract

The invention discloses an electric automatic control system of a rubber unloading process machine of a natural rubber primary processing production line. The control process is that after the rubber conveying vehicle reaches the designated position, 4 rubber blocks in the rubber conveying vehicle are grabbed by 8 spiral cutters on the mechanical hand, then the rubber conveying vehicle is placed on the rubber unloading vehicle, and the rubber unloading vehicle is driven out to convey the rubber blocks to the designated position. The electric automatic control system comprises a travel switch, a motor and other elements. Under the control of a Programmable Logic Controller (PLC), the glue blocks in the glue conveying vehicle are placed on the glue unloading vehicle through the mutual matching of the electric elements, and the glue blocks are automatically conveyed to the next procedure. The rubber unloading device has the advantages that the rubber unloading process of the natural rubber primary processing production line is changed from manual operation into automatic operation of a machine, so that the automation of the production process is realized, and a foundation is laid for the comprehensive automation realization of natural rubber primary processing equipment; on the other hand, a large amount of labor cost can be saved, and the economic benefit of natural rubber primary processing enterprises is improved.

Description

Electrical automatic control system of rubber unloading process machinery of natural rubber primary processing production line
Technical Field
The invention relates to an electric automatic control system of an agricultural product processing machine, in particular to an electric automatic control system of a rubber unloading process machine of a natural rubber primary processing production line.
Background
The rubber tree planting areas in China are mainly concentrated in Hainan province and Yunnan province, because of the unique geographical and climatic conditions of Hainan, Hainan has become an important rubber planting and production base in China at present, and rubber is processed into one of local characteristic industries. The natural rubber is a natural high molecular compound, latex obtained by cutting rubber trees is processed in a series of ways to obtain the natural rubber sold in the market. Because the natural rubber has the characteristics of good plasticity, rebound resilience, acid resistance, wear resistance and the like, the natural rubber has extremely wide application in production and life.
After the rubber liquid is transported from the purchasing point, the rubber processing factory carries out primary processing on the rubber liquid, and the rubber liquid is changed into solid rubber blocks from the liquid rubber so as to be processed into various rubber products in the following process. The whole rubber primary processing production line is divided into a drying part and a packaging part, and since the last ten years, domestic researchers have more researches on the aspect of drying natural rubber, but most researches are focused on the natural rubber drying process, and researches on an electric automatic control system of natural rubber primary processing equipment are not found.
According to the production process, the key procedures of the research team for designing the whole automatic production line for the primary processing of the natural rubber are as follows: a charging section; a drying part; a glue unloading part; a mechanical hand is used for grabbing the glue part; a rubber block weighing and packaging part; a feeding part of a packer; a glue cutting part; and a glue unloading part. At present, the production of natural rubber primary processing enterprises is labor-intensive, the automation level is low, the labor intensity of workers is high, and the efficiency is low, so that the product quality is uneven. Therefore, in order to improve the automation and the intellectualization of the natural rubber primary processing equipment and realize the large-scale and modernization of rubber production so as to improve the rubber processing quality, an electric automatic control system of the rubber unloading process machinery of the natural rubber production line is researched and designed, and the electric automatic control of the rubber unloading process machinery after the natural rubber is dried is realized.
Disclosure of Invention
The invention designs an efficient and safe electric automatic control system of a rubber unloading process machine of a natural rubber primary processing production line. The invention of the electric automatic control system can change the production of the rubber unloading process after the drying of the natural rubber primary processing production line from manual operation to automatic operation, not only can realize automation of the conveying of the dried rubber blocks, but also can greatly save labor cost, improve production efficiency and improve economic benefits of rubber primary processing enterprises.
The technical scheme adopted by the invention is as follows: the bracket at the upper part of the glue unloading procedure machinery is provided with a travel switch ST3A manipulator; manipulator lifting motor M mounted on manipulator2Spiral knife rotating motor M3A mechanical arm baffle and 8 spiral cutters; a travel switch ST is arranged on a guide rail of the glue unloading vehicle at the middle part of the machine4And a travel switch ST5The rubber unloading vehicle, the guide rail left side buffer block and the guide rail right side buffer block; the glue unloading vehicle is provided with a glue unloading vehicle separation blade and a glue unloading vehicle driving motor M1(ii) a The lower part of the machine is provided with a travel switch ST2(ii) a The rubber conveying vehicle and the travel switch ST are arranged on the rubber conveying vehicle guide rail at the lower part of the machine1(ii) a The rubber conveying vehicle is provided with a rubber conveying vehicle baffle.
The electric automatic control system comprises a main circuit and a control circuit. The main circuit portion includes: air switch QS1AC contactor KM1AC contactor KM2AC contactor KM3AC contactor KM4AC contactor KM5AC contactor KM6Thermal relay FR1Thermal relay FR2Thermal relay FR3Driving motor M of glue unloading vehicle1Manipulator lifting motor M2Spiral knife rotating motor M3(ii) a The control circuit comprises a Programmable Logic Controller (PLC) and an air switch QS2Fuse FU, selection switch SA (with 1 gear and 2 gears), travel switch ST1And a travel switch ST2And a travel switch ST3And a travel switch ST4And a travel switch ST5Emergency stop button SB0Start button SB8Stop button SB9And a manual button SB1And a manual button SB2And a manual button SB3And a manual button SB4And a manual button SB6And a manual button SB7And an intermediate relay KA1And an intermediate relay KA2And an intermediate relay KA3And an intermediate relay KA4And an intermediate relay KA5And an intermediate relay KA6. In order to describe the functions of the respective elements of the electrical automatic control system and the assignment of the PLC input address and output address in detail, tables 1, 2, and 3 will be given.
TABLE 1 description of the main circuit elements
Symbol of elements Name of element Implement functions
QS1 Air switch Three-phase power supply leading-in and short-circuit protection of motor
QS2 Air switch PLC single-phase power supply leading-in and over-current protection
FU Fuse protector PLC over-current protection
FR1 Thermal relay Overload protection for driving motor M1 of glue unloading vehicle
FR2 Thermal relay Overload protection for manipulator lifting motor M2
FR3 Thermal relay Overload protection for spiral knife rotating motor M3
KM1 AC contactor Controlling the driving motor M1 of the glue discharging vehicle to rotate positively and the glue discharging vehicle to move leftwards
KM2 AC contactor Controlling the driving motor M1 of the glue discharging vehicle to rotate reversely, and enabling the glue discharging vehicle to move rightwards
KM3 AC contactor The normal rotation of a manipulator lifting motor M2 is controlled, and the manipulator descends
KM4 AC contactor The lifting motor M2 of the manipulator is controlled to rotate reversely, and the manipulator rises
KM5 AC contactor The motor M3 for controlling the rotation of the spiral knife to rotate forwards and the spiral knife rotates clockwise
KM6 AC contactor Motor for controlling rotation of spiral knifeM3 is reversed, and the spiral knife rotates anticlockwise
M1 Drive motor of glue unloading vehicle The driving motor M1 of the glue discharging car positively rotates to drive the glue discharging car to move leftwards, and vice versa
M2 Manipulator lifting motor The manipulator lifting motor M2 rotates positively, the manipulator descends, otherwise, the manipulator ascends
M3 Spiral knife rotating motor The spiral knife rotating motor M3 rotates clockwise when rotating forward, otherwise, the spiral knife rotates counterclockwise
TABLE 2 PLC input Address assignment and input element description
Figure 646832DEST_PATH_IMAGE002
TABLE 3 PLC output Address assignment and output element description
Symbol of elements Name of element Output address Function(s)
KA1 Intermediate relay Device for cleaning the skin Y001 The rubber unloading vehicle drive is controlled by controlling the on-off of the alternating current contactor KM1 The motor M1 rotates forward, and the rubber unloading vehicle moves left.
KA2 Intermediate relay Device for cleaning the skin Y002 The rubber unloading vehicle drive is controlled by controlling the on-off of the alternating current contactor KM2 The motor M1 rotates reversely, and the glue unloading vehicle moves rightwards.
KA3 Intermediate relay Device for cleaning the skin Y003 The manipulator is controlled to lift by controlling the on-off of the alternating current contactor KM3 The descending motor M2 rotates forwards, and the manipulator descends.
KA4 Intermediate relay Device for cleaning the skin Y004 The manipulator is controlled to lift by controlling the on-off of the alternating current contactor KM4 The elevator M2 rotates in reverse, and the robot arm ascends.
KA5 Intermediate relay Device for cleaning the skin Y005 The spiral cutter is controlled to rotate by controlling the on-off of the alternating current contactor KM5 The motor M3 rotates clockwise.
KA6 Intermediate relay Device for cleaning the skin Y006 The spiral cutter is controlled to rotate by controlling the on-off of the alternating current contactor KM6 The motor M3 rotates reversely, and the spiral knife rotates anticlockwise.
The automatic control process of the electric automatic control system comprises the following steps: the selection switch SA is turned to 1 gear, the glue unloading process machinery enters an automatic control mode, and a start button SB is pressed8The glue transporting vehicle filled with 4 dried glue blocks enters a designated position along the guide rail of the glue transporting vehicle, and the stop piece of the glue transporting vehicle touches the travel switch ST1In time, the glue transporting vehicle is stopped under the manipulator, and after 3 seconds of delay, the intermediate relay KA3Working by power, the alternating current contactor KM3Get electric work, manipulator elevator motor M2The forward rotation operation is started, the manipulator is driven to descend, and the intermediate relay KA5Working by power, the alternating current contactor KM5Working by electricity, the spiral knife rotates the electrical machinery M3The forward rotation runs to drive 8 spiral knives on the manipulator to rotate clockwise, when the 8 spiral knives contact the rubber block, the manipulator still descends, and simultaneously the 8 spiral knives start to be inserted into the rubber block until a manipulator separation blade touches a travel switch ST2Time, intermediate relay KA3Is disconnected so that the AC contactor KM3Disconnected manipulator lifting motor M2Stopping operation, stopping descending of the manipulator and simultaneously realizing the intermediate relay KA5Is disconnected so that the AC contactor KM5Breaking, 8 spiral knife rotating motor M3Stopping the operation, stopping the rotation of the spiral knives, inserting 8 spiral knives into 4 rubber blocks to a proper depth at the moment, delaying for 3 seconds, and then enabling the intermediate relay KA to be connected with the middle relay KA4Working by power, the alternating current contactor KM4Get electric work, manipulator elevator motor M2Reversely rotating to drive the manipulator to ascend to grab the rubber block, and ascending the manipulator to touch a travel switch ST by a manipulator separation blade3Rear, intermediate relay KA4Is disconnected so that the AC contactor KM4Disconnected manipulator lifting motor M2Stopping operation, manipulatorStopping rising, delaying for 3 seconds, and then using the intermediate relay KA1Working by power, the alternating current contactor KM1Driving motor M for power-on work and glue unloading vehicle1The rubber unloading vehicle is driven to move leftwards along the rubber unloading vehicle guide rail by forward rotation operation, and when the rubber unloading vehicle baffle touches a travel switch ST on the left side of the rubber unloading vehicle guide rail4Time, intermediate relay KA1Is disconnected so that the AC contactor KM1Driving motor M of rubber vehicle for disconnection and unloading1Stopping operation, simultaneously, under the action of a buffer block on the left side of the guide rail, stopping the glue unloading vehicle under the manipulator, and after 5 seconds of time delay, performing KA on the intermediate relay6Working by power, the alternating current contactor KM6Working by electricity, the spiral knife rotates the electrical machinery M3The reverse rotation is operated, 8 spiral knives are driven to rotate anticlockwise to unload the rubber blocks, 10 seconds of delay are used for ensuring that the rubber blocks completely fall onto a rubber unloading vehicle, and the intermediate relay KA6Is disconnected so that the AC contactor KM6Motor M for turning off and rotating spiral knife3Stopping operation, stopping rotation of the spiral knife, and simultaneously stopping operation of the intermediate relay KA2Working by power, the alternating current contactor KM2Driving motor M for power-on work and glue unloading vehicle1Starting to reversely rotate, driving the rubber unloading car to drive out along the guide rail of the rubber unloading car rightwards, and touching a travel switch ST on the right side of the guide rail of the rubber unloading car by a stop piece of the rubber unloading car5Time, intermediate relay KA2Is disconnected so that the AC contactor KM2Driving motor M of rubber vehicle for disconnection and unloading1And stopping running, and stopping the glue unloading vehicle at a specified position on the right side of the guide rail of the glue unloading vehicle under the action of the buffer block on the right side of the guide rail of the glue unloading vehicle, so that a glue unloading process is completed. When the next rubber conveying vehicle drives in along the rubber conveying vehicle guide rail to the rubber conveying vehicle separation blade to touch the travel switch ST again1And then the next glue unloading process is started again. The automatic control process is the basis of the program flow chart design of the automatic control part of the Programmable Logic Controller (PLC), and the ladder diagram program of the automatic control process of the glue unloading process machinery can be designed based on the program flow chart, so that the automatic control of the glue unloading process machinery by the Programmable Logic Controller (PLC) is realized.
The manual control mode of the electric automatic control system is as follows: to meet the work of maintenance, debugging, restoring the original position and the likeAnd a manual control mode is required to be set, and the design principle is that the on-off of the intermediate relay is directly controlled by a button so as to control the on-off of the contactor to realize the action of each actuating element. The specific control process is as follows: the selection switch SA is turned to the 2-gear, the glue unloading process machinery enters a manual control mode, and a manual button SB is used1Control intermediate relay KA3On-off to further control the AC contactor KM3Manipulator lifting motor M controlled by on-off2Is positively rotated to control the lowering of the manipulator, by means of a manual push-button SB2Control intermediate relay KA4On-off to further control the AC contactor KM4Manipulator lifting motor M controlled by on-off2Thereby controlling the elevation of the manipulator; by means of a manual push-button SB3Control intermediate relay KA5AC contactor KM controlled by on-off5On-off to control the rotation of the motor M3Thereby controlling the clockwise rotation of the spiral cutter through a manual button SB4Control intermediate relay KA6AC contactor KM controlled by on-off6On-off to control the rotation of the motor M3Thereby controlling the counterclockwise rotation of the helical knife; by means of a manual push-button SB6Control intermediate relay KA1AC contactor KM controlled by on-off1On-off and further control the driving motor M of the rubber unloading vehicle1Is positively rotated, thereby controlling the glue unloading vehicle to move leftwards through a manual button SB7Control intermediate relay KA2AC contactor KM controlled by on-off2On-off and further control the driving motor M of the rubber unloading vehicle1Thereby controlling the glue unloading vehicle to move towards the right. The control process is the design basis of a manual control part of a ladder diagram program of a Programmable Logic Controller (PLC), and the manual control of each output element by the PLC can be realized based on the process.
Further, in the control circuit, the PLC controls the intermediate relay KA1And an intermediate relay KA2And an intermediate relay KA3And an intermediate relay KA4And an intermediate relay KA5And an intermediate relay KA6The electromagnetic coil of the electromagnetic switch is electrified and deenergized,thereby realizing on-off control of the contact of the relay by using the intermediate relay KA1And an intermediate relay KA2And an intermediate relay KA3And an intermediate relay KA4And an intermediate relay KA5And an intermediate relay KA6The contacts of the alternating current contactor KM respectively control the alternating current contactor KM1AC contactor KM2AC contactor KM3AC contactor KM4AC contactor KM5AC contactor KM6The electromagnetic coil is electrified and deenergized, thereby realizing the AC contactor KM1AC contactor KM2AC contactor KM3AC contactor KM4AC contactor KM5AC contactor KM6The on-off control of the contact point further controls the driving motor M of the rubber unloading vehicle in the main circuit1Manipulator lifting motor M2Spiral knife rotating motor M3The positive and negative rotation work.
Further, when an emergency occurs, the scram button SB is pressed0The power supply circuit of all intermediate relays of the output part of a Programmable Logic Controller (PLC) can be quickly and effectively cut off, so that all the intermediate relays are controlled to be switched off, all the alternating current contactors are further controlled to be switched off, the power supply of all the motors is cut off, the machine is in a stop state, and then if the emergency stop button SB is pressed0The PLC is not loosened, and the whole machine does not work no matter what input is provided by the PLC. When the glue unloading process machine is in an automatic working state, if the automatic running process of the machine is to be stopped, the stop button SB can be pressed9The machine is stopped.
Further, in order to avoid pressing the manual buttons for controlling the forward and reverse rotation of the same motor at the same time, i.e. to avoid the power supply short circuit caused by the simultaneous connection of the contactors for controlling the forward and reverse rotation of the same motor, if the manual button SB is pressed1And a manual button SB2The simultaneous connection will cause the power supply to be short-circuited, the control system is provided with an electrical interlock, the auxiliary normally closed contacts of the counter-rotating intermediate relays of each motor are interlocked, and the button SB is pressed simultaneously1And button SB2Intermediate relay KA1And an intermediate relay KA2Coil loop auxiliary normally closed contactInterlocked and unable to be connected with power, therefore the contactor KM1And contactor KM2The power supply can not work simultaneously, so that the power supply short circuit is avoided; likewise, the intermediate relay KA3And an intermediate relay KA4Coil loop and intermediate relay KA5And an intermediate relay KA6The coil loop of (c) is also provided with an auxiliary normally closed contact interlock, so that the contactor KM3And contactor KM4Contactor KM5And contactor KM6And the two-phase motor can not work simultaneously, so that the power supply short circuit is avoided.
Further, as for the main circuit, when a short-circuit failure occurs in the circuit, the air switch SQ is turned on1The short-circuit protection function is realized, when the current exceeds a given value, the trip is realized, the circuit is cut off, and the safety of operators and equipment in the production process is protected; for the control circuit, air switch SQ2Has short-circuit protection function and simultaneously uses the fuse FU to assist the air switch SQ2The protection circuit has the function of short-circuit protection, and ensures that a power supply line of a Programmable Logic Controller (PLC) is cut off under the condition of overcurrent, so that the PLC is prevented from being damaged by the overcurrent.
Further, a thermorelay FR1Thermal relay FR2Thermal relay FR3With overload protection, when the motor overheats due to overload, the thermal relay FR1Thermal relay FR2Thermal relay FR3The auxiliary normally closed contact is disconnected to drive the motor M of the rubber vehicle1Manipulator lifting motor M2Spiral knife rotating motor M3And the operation is stopped, so that the safe operation of each motor in the production process is ensured.
The rubber unloading device has the advantages that the rubber unloading process of the natural rubber primary processing production line is changed from manual operation into automatic operation of a machine, so that the automation of the production process is realized, and a foundation is laid for the comprehensive automation realization of the natural rubber primary processing production line; on the other hand, a large amount of labor cost can be saved, and the economic benefit of natural rubber primary processing enterprises is improved.
Drawings
Fig. 1 is a mechanical structure and electrical component arrangement diagram of an electrical automatic control system of an embodiment of the present invention.
In the figure 1, a travel switch ST 32. Manipulator lifting motor M 23. Spiral knife rotating motor M 34. The manipulator 5, the spiral knife 6, the manipulator separation blade 7, the rubber unloading vehicle separation blade 8, the rubber unloading vehicle driving motor M19. Glue unloading vehicle 10, travel switch ST411. Travel switch ST 512. Guide rail left side buffer block 13, guide rail right side buffer block 14, travel switch ST 215. Rubber vehicle 16, travel switch ST117. A baffle plate of the rubber conveying vehicle.
Fig. 2 is a main circuit schematic diagram of an electric automatic control system of an embodiment of the present invention.
Fig. 3 is a schematic external wiring diagram of a PLC control circuit of the electric automatic control system according to the embodiment of the present invention.
Fig. 4 is a schematic circuit diagram of a main circuit ac contactor controlled by an intermediate relay of a control circuit of an electric automatic control system according to an embodiment of the present invention.
Fig. 5 is a diagram of a control cabinet element arrangement of the electric automation control system of the embodiment of the invention.
In the figure 18, a selection switch SA 19 and a starting button SB 820. Stop button SB921. Manual push button SB 122. Manual push button SB 223. Manual push button SB 324. Manual push button SB 425. Manual push button SB 626. Manual push button SB727. Air switch QS128. Air switch QS229. Fuse FU 30, Programmable Logic Controller (PLC) 31, intermediate relay KA 132. Intermediate relay KA 233. Intermediate relay KA 334. Intermediate relay KA 435. Intermediate relay KA 536. Intermediate relay KA637. AC contactor KM 138. AC contactor KM 239. AC contactor KM340. AC contactor KM641. AC contactor KM542. AC contactor KM443. Thermal relay FR144. Thermal relay FR245. Thermal relay FR 346. Inlet and outlet holes 47, box 48, and door.
Fig. 6 is a program flow diagram of a Programmable Logic Controller (PLC) of the electrical automation control system according to the embodiment of the present invention.
Detailed Description
The technical scheme adopted by the invention is as follows: a travel switch ST is arranged on a bracket at the upper part of the glue unloading procedure machinery3(1) And a travel switch ST2(14) A manipulator (4); a manipulator separation blade (6), 8 spiral cutters (5) and a manipulator lifting motor M are arranged on the manipulator (4)2(2) Spiral knife rotating motor M3(3) (ii) a The middle part of the glue unloading procedure machine is provided with a glue unloading vehicle guide rail, and the glue unloading vehicle guide rail is provided with a travel switch ST4(10) And a travel switch ST5(11) The rubber unloading vehicle (9), a left buffer block (12) of a guide rail of the rubber unloading vehicle and a right buffer block (13) of the guide rail of the rubber unloading vehicle; a glue unloading vehicle separation blade (7) and a glue unloading vehicle driving motor M are arranged on the glue unloading vehicle (9)1(8) (ii) a The lower part of the glue unloading procedure machine is provided with a glue conveying vehicle (15), and a track of an inlet of the glue conveying vehicle (15) is provided with a travel switch ST1(16) And a rubber vehicle baffle plate (17) is arranged on the rubber vehicle.
The automatic control process of the electric automatic control system comprises the following steps: the selection switch SA (18) is turned to 1 gear, the glue unloading process machinery enters an automatic control mode, and a start button SB is pressed8(19) The glue transporting vehicle (15) filled with 4 dried glue blocks enters along the guide rail of the glue transporting vehicle, and a stop piece (17) of the glue transporting vehicle touches a travel switch ST1(16) When the rubber conveying vehicle stops under the manipulator (4), after 3 seconds of delay, the intermediate relay KA3(33) Working by power, the alternating current contactor KM3(39) Also working with electricity, AC contactor KM3(39) The normally open contact is closed, and the manipulator lifting motor M2(2) The forward rotation operation is started, the mechanical arm (4) is driven to descend, and meanwhile, the intermediate relay KA5(35) Working by power, the alternating current contactor KM5(41) Working by electricity, the spiral knife rotates the electrical machinery M3(3) The forward rotation runs to drive 8 spiral knives (5) on the mechanical hand (4) to rotate clockwise, when the spiral knives (5) contact the rubber blocks, the mechanical hand (4) still descends continuously, and at the moment, the 8 spiral knives (5) start to be inserted into the 4 rubber blocks until the machine is startedManipulator separation blade (6) touches travel switch ST2(14) Time, intermediate relay KA3(33) The power is cut off, so that the alternating current contactor KM3(39) Power-off and manipulator lifting motor M2(2) The operation is stopped, the manipulator (4) stops descending, and the intermediate relay KA5(35) The power is cut off, so that the alternating current contactor KM5(41) When power is off, the spiral knife rotates the motor M3(3) Stopping the operation, stopping 8 spiral knives (5) from rotating, pricking the spiral knives into the rubber block to a proper depth, and delaying for 3 seconds, wherein the KA of the intermediate relay4(34) When power is supplied, the AC contactor KM4(42) Get electricity, manipulator elevator motor M2(2) Reversely rotating to drive the mechanical arm (4) to ascend to grab the rubber block, and the mechanical arm (4) ascends to the position where a mechanical arm separation blade (6) touches a travel switch ST3(1) Rear, intermediate relay KA4(34) The power is cut off, so that the alternating current contactor KM4(42) Power-off and manipulator lifting motor M2(2) Stopping operation, stopping the mechanical arm (4) from rising, delaying for 3 seconds, and then setting the intermediate relay KA1(31) When power is supplied, the AC contactor KM1(37) Driving motor M of power-on and glue-unloading vehicle1(8) The rubber unloading car runs forward to drive the empty rubber unloading car (9) on the right side of the rubber unloading car guide rail to move leftwards along the rubber unloading car guide rail, and when a rubber unloading car separation blade (7) touches a travel switch ST on the left side of the rubber unloading car guide rail4(10) Time, intermediate relay KA1(31) The power is cut off, so that the alternating current contactor KM1(37) Driving motor M of power-off and rubber-unloading vehicle1(8) Stopping operation, simultaneously unloading the rubber vehicle to a position right below the mechanical arm (4) under the action of the buffer block on the left side of the guide rail, and delaying for 5 seconds, and then the intermediate relay KA6(36) When power is supplied, the AC contactor KM6(40) When power is on, the spiral knife rotates the motor M3(3) Reversely rotating, driving 8 spiral knives (5) to rotate anticlockwise to unload the rubber blocks, delaying for 10 seconds until the rubber blocks fall onto a rubber unloading vehicle, and using an intermediate relay KA6(36) The power is cut off, so that the alternating current contactor KM6(40) When power is off, the spiral knife rotates the motor M3(3) Stopping the operation, stopping the rotation of the spiral knife (5) and simultaneouslyIntermediate relay KA2(32) When power is supplied, the AC contactor KM2(38) Driving motor M of power-on and glue-unloading vehicle1(8) Starting to reversely rotate, driving the rubber unloading car (9) to move out along the rubber unloading car guide rail rightwards, and when the rubber unloading car separation blade (7) touches a travel switch ST on the right side of the rubber unloading car guide rail5(11) Time, intermediate relay KA2(32) The power is cut off, so that the alternating current contactor KM2(38) Driving motor M of power-off and rubber-unloading vehicle1(8) And stopping running, stopping the glue unloading vehicle at the right side of the guide rail of the glue unloading vehicle under the action of the buffer block at the right side of the guide rail of the glue unloading vehicle, and finishing the work of a glue unloading process. When the next rubber conveying vehicle (15) drives in along the rubber conveying vehicle guide rail, the stop sheet (17) of the rubber conveying vehicle touches the travel switch ST again1(16) When the glue is discharged, the next round of glue discharging is started again. The process is the basis of the program flow chart design of the automatic control mode of the Programmable Logic Controller (PLC), and the ladder diagram program of the Programmable Logic Controller (PLC) can be designed based on the process, so that the automatic control of the glue unloading process machinery by the Programmable Logic Controller (PLC) is realized.
The manual working mode of the electric automatic control system is as follows: the selection switch SA (18) is adjusted to 2 gear, the glue unloading process is mechanically controlled to enter a manual control mode, and when a glue block is carried by a glue carrier (15), the glue unloading process is carried out and a travel switch ST is touched1(16) When pressing the manual button SB1(21) Manual push button SB1(21) Control intermediate relay KA3(33) AC contactor KM controlled by power-on and power-off3(39) On-off AC contactor KM3(39) Manipulator lifting motor M controlled by on-off2(2) Is operated in a forward direction, thereby controlling the lowering of the manipulator (4) and simultaneously pressing a manual button SB3(23) Control intermediate relay KA5(35) AC contactor KM controlled by on-off5(41) Motor M for controlling rotation of spiral knife by on-off3(3) The spiral cutter (5) is controlled to rotate clockwise, and when the spiral cutter (5) contacts the surface of the rubber block and just penetrates into the rubber block, two manual buttons, namely a manual button SB, are continuously pressed1(21) And a manual button SB3(23) When the screw is screwedWhen the rotary cutter (5) penetrates into the rubber block to a proper depth, the manual button SB is loosened1(21) And a manual button SB3(23) Push the manual button SB2(22) And control the intermediate relay KA4(34) AC contactor KM controlled by on-off4(42) On-off and further control manipulator lifting motor M2(2) Thereby controlling the lifting of the manipulator (4), when the manipulator (4) is lifted to the travel switch ST3(1) When the manual button SB is released2(22) And press the manual button SB6(25) Control intermediate relay KA1(31) On-off, with intermediate relay KA1(31) To control an AC contactor KM1(37) On-off control glue unloading vehicle driving motor M1(8) The rubber unloading vehicle (9) is controlled to move leftwards, and when the rubber unloading vehicle (9) is in quick contact with a left buffer block (12) of a guide rail of the rubber unloading vehicle, a manual button SB is released6(25) When the rubber vehicle (9) is stopped, the manual button SB is pressed4(24) Control intermediate relay KA6(36) On-off to control the AC contactor KM6(40) On-off to control the rotation of the motor M3(3) The spiral knife (5) rotates anticlockwise by reverse operation, the rubber block is loosened, and the manual button SB is pressed after the rubber block falls to the rubber unloading vehicle (9)7(26) Control intermediate relay KA2(32) AC contactor KM controlled by on-off2(38) On-off and further control glue unloading vehicle driving motor M1(8) Thereby controlling the glue discharging vehicle (9) to move rightwards, and when the glue discharging vehicle moves to the right side and approaches the buffer block (13) at the right side of the guide rail, the manual button SB is released7(26) And the glue unloading vehicle (9) stops, and the glue unloading work is finished at the moment.

Claims (3)

1. An electric automatic control system of rubber unloading process machinery of a natural rubber primary processing production line is characterized in that: the automatic control program of the glue unloading process machine is characterized in that a glue carrier (15) filled with 4 dried glue blocks enters a specified position along a guide rail of the glue carrier, and when a stop piece (17) of the glue carrier touches a travel switch ST1(16) Transporting and transportingThe rubber car (15) stops, 4 rubber blocks on the rubber car (15) are arranged at the position right below the manipulator (4), 3 seconds later, and the manipulator lifting motor M2(2) The forward rotation runs to drive the mechanical arm (4) to descend, and simultaneously the spiral knife rotates the motor M3(3) The mechanical hand (4) is driven to rotate clockwise by rotating forward to drive 8 spiral knives (5) on the mechanical hand (4), when the 8 spiral knives (5) touch 4 rubber blocks, the mechanical hand (4) still descends continuously, and the 8 spiral knives (5) are pricked into the rubber blocks until a mechanical hand blocking piece (6) touches a travel switch ST2(14) In time, manipulator lifting motor M2(2) Stopping the operation, stopping the mechanical arm (4) from descending, and simultaneously rotating the motor M by the spiral knife3(3) Stopping the operation, stopping the rotation of 8 spiral knives (5), pricking the 8 spiral knives (5) into the rubber block by a proper depth for 3 seconds, and lifting a motor M by a manipulator2(2) Reversely rotating, driving the mechanical arm (4) to ascend to grab the 4 rubber blocks, and ascending the mechanical arm (4) until a mechanical arm separation blade (6) touches a travel switch ST3(1) After that, the manipulator lifting motor M2(2) Stopping running, stopping the mechanical arm (4) from rising, delaying for 3 seconds, and unloading the rubber vehicle driving motor M1(8) The rubber unloading car runs forward to drive the empty rubber unloading car (9) on the right side of the rubber unloading car guide rail to move leftwards along the rubber unloading car guide rail, and when a rubber unloading car separation blade (7) touches a travel switch ST on the left side of the rubber unloading car guide rail4(10) In time, unload gluey car driving motor M1(8) Stopping running, stopping the rubber unloading vehicle (9) under the manipulator (4) under the action of the buffer block (12) on the left side of the guide rail, delaying for 5 seconds, and rotating the motor M by the spiral knife3(3) Reversely rotating, driving 8 spiral knives (5) to rotate anticlockwise to unload the rubber blocks, delaying for 10 seconds, and rotating a motor M by the spiral knives3(3) Stopping the operation, stopping 8 spiral knives (5) to rotate, and then 4 rubber blocks fall on a rubber unloading vehicle (9) which drives a motor M1(8) Starting to reversely rotate, driving the rubber unloading car (9) to move out along the rubber unloading car guide rail rightwards, and when the rubber unloading car separation blade (7) touches a travel switch ST on the right side of the rubber unloading car guide rail5(11) In time, unload gluey car driving motor M1(8) Stopping running and slowing down at right side of guide railUnder the action of the punching block (13), the glue unloading vehicle (9) stops at the right side of the guide rail of the glue unloading vehicle, and the automatic glue unloading process of 4 glue blocks is completed.
2. The electrical automatic control system of the rubber unloading process machinery of the natural rubber primary processing production line according to claim 1, characterized in that: the field element of the electric automatic control system comprises a travel switch ST1(16) And a travel switch ST2(14) And a travel switch ST3(1) And a travel switch ST4(10) And a travel switch ST5(11) Driving motor M of glue unloading vehicle1(8) Manipulator lifting motor M2(2) Spiral knife rotating motor M3(3) The device comprises a manipulator (4), a spiral cutter (5), a rubber unloading vehicle (9), a rubber conveying vehicle (15), a rubber unloading vehicle baffle (7), a rubber conveying vehicle baffle (17), a manipulator baffle (6), a guide rail left buffer block (12) and a guide rail right buffer block (13).
3. The electrical automatic control system of the rubber unloading process machinery of the natural rubber primary processing production line according to claim 1, characterized in that: the electric automatic control system comprises a control cabinet consisting of a main circuit and a control circuit, and comprises a selection switch SA (18) and a start button SB8(19) Stop button SB9(20) And a manual button SB1(21) And a manual button SB2(22) And a manual button SB3(23) And a manual button SB4(24) And a manual button SB6(25) And a manual button SB7(26) QS air switch1(27) QS air switch2(28) Fuse FU (29), Programmable Logic Controller (PLC) (30) and intermediate relay KA1(31) And an intermediate relay KA2(32) And an intermediate relay KA3(33) And an intermediate relay KA4(34) And an intermediate relay KA5(35) And an intermediate relay KA6(36) AC contactor KM1(37) AC contactor KM2(38) AC contactor KM3(39) AC contactor KM6(40) AC contactor KM5(41) AC contactor KM4(42) Thermal relay FR1(43) Thermal relay FR2(44) Thermal relay FR3(45) The control cabinet element arrangement method comprises a control cabinet element arrangement method and a circuit connection mode, wherein the control cabinet element arrangement method comprises an inlet wire outlet hole (46), a box body (47), a box door (48), a terminal row and a wire groove.
CN202010109831.8A 2020-02-23 2020-02-23 Electrical automatic control system of rubber unloading process machinery of natural rubber primary processing production line Pending CN113296476A (en)

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