CN214225753U

CN214225753U - Automatic control system of natural rubber preliminary working glue unloading process machinery

Info

Publication number: CN214225753U
Application number: CN202120071522.6U
Authority: CN
Inventors: 张宝珍; 陈家林; 苏恒宇; 樊军庆
Original assignee: Hainan University
Current assignee: Hainan University
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-09-17
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses an automatic control system of rubber process machinery is unloaded in natural rubber preliminary working. 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 automatic control system comprises a travel switch, a motor and the like. 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 utility model has the advantages that the rubber unloading process of the natural rubber primary processing production line is changed from manual operation to 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

Automatic control system of natural rubber preliminary working glue unloading process machinery

Technical Field

The utility model relates to an agricultural product processing machinery automatic control system, concretely relates to automatic control system of gluey process machinery is unloaded in natural rubber preliminary working.

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 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 automatic control system of the natural rubber primary processing rubber unloading process machinery is researched and designed, and the automatic control of the natural rubber drying rubber unloading process machinery is realized.

Disclosure of Invention

The utility model relates to a high-efficient, safe natural rubber preliminary working unloads automatic control system of gluey process machinery. The automatic control system can change the production of the rubber unloading process after the natural rubber primary processing production line is dried from manual operation to automatic operation, not only can realize automation of the dried rubber block transmission, but also can greatly save labor cost, improve production efficiency and improve economic benefits of rubber primary processing enterprises.

The utility model adopts the technical proposal that: the glue unloading process machine is provided with a bracket, and the upper part of an upright post of the bracket is provided with a travel switch ST₃The lower part of the upright post of the bracket is provided with a travel switch ST₂The middle position of the upper part of the bracket is provided with a manipulator and a manipulator lifting motor M₂(ii) a A manipulator separation blade is arranged on the left side surface of the manipulator, and a spiral knife rotating motor M is arranged on the upper part of the manipulator₃The lower part of the manipulator is provided with 8 spiral cutters; the middle part of the bracket is provided with a rubber unloading vehicle guide rail, and the left side of the rubber unloading vehicle guide rail is provided with a travel switch ST₄The right side of the guide rail of the glue unloading vehicle is provided with a travel switch ST₅The left bracket upright post of the rubber unloading vehicle guide rail is provided with a left buffer block of the rubber unloading vehicle guide rail, the right bracket upright post of the rubber unloading vehicle guide rail is provided with a right buffer block of the rubber unloading vehicle guide rail, the rubber unloading vehicle is arranged on the guide rail of the rubber unloading vehicle, the left side of the rubber unloading vehicle is provided with a rubber unloading vehicle baffle plate, and the right side of the rubber unloading vehicle is provided with a rubber unloading vehicle driving motor M₁(ii) a The subaerial fortune is glued car guide rail of installing of manipulator below, has fortune glue car on the fortune glue car guide rail, and fortune glue car separation blade is installed to fortune glue car front end, and travel switch ST is installed to fortune glue car guide rail entrance₁(ii) a The ground of the lower part of the upright post of the bracket is provided with a control cabinet, the control cabinet is internally provided with a main circuit, electrical elements required by the control circuit, and a travel switch ST installed on the mechanical site₁And a travel switch ST₂And a travel switch ST₃And a travel switch ST₄And a travel switch ST₅The glue unloading vehicle driving motor M is installed on the machine site by connecting the inlet and outlet wire holes of the control cabinet with the corresponding input address of the PLC in the control cabinet₁Manipulator lifting motor M₂Spiral knife rotating motor M₃And the heat relay is connected with the corresponding heat relay in the control cabinet through the wire inlet and outlet holes of the control cabinet.

The automatic control system comprises a main circuit and a control circuit, and electric elements of the main circuit and the control circuit are respectively arranged on the site of the glue unloading process machinery and in a control cabinet. 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 M₃The electric elements of the main circuit are respectively arranged on the glue unloading machine site and in the control cabinet.

Connection relationship of main circuit electric elements: air switch QS₁For the main power switch and for each contactor, an AC contactor KM₁And an AC contactor KM₂Main contact and thermal relay FR₁Is connected with a thermal element, an AC contactor KM₃And an AC contactor KM₄Main contact and thermal relay FR₂Is connected with a thermal element, an AC contactor KM₅And an AC contactor KM₆Main contact and thermal relay FR₃In a control cabinet, a thermal relay FR₁Driving motor M of glue unloading vehicle for thermal element and glue unloading machinery site₁Connected, thermal relay FR in control cabinet₂Manipulator lifting motor M for thermal element and glue unloading machine site₂Thermal relay FR connected in control cabinet₃Spiral knife rotating motor M for thermal element and glue unloading machine on site₃Are connected.

The automatic control system control circuit includes: programmable controller (PLC), 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 KA₃InInterval relay KA₄And an intermediate relay KA₅And an intermediate relay KA₆。

Connection relation of electric elements of the control circuit: firstly, the mechanical PLC control circuit of the glue unloading process is connected with the electrical elements, the PLC is powered by a 220V alternating current power supply, the 1 gear of a selection switch SA of a PLC input part is connected with an input address X000 of the PLC, the 2 gear of the selection switch SA is connected with an input address X020 of the PLC, and a travel switch ST₁An input address X001 connected to PLC, a travel switch ST₂An input address X002 connected with the PLC, a travel switch ST₃Receiving input address X003 of PLC, travel switch ST₄An input address X004 of the PLC and a travel switch ST₅An input address X005 of the PLC and a manual button SB are connected₁An input address X011 connected with PLC and a manual button SB₂Receiving input address X012 of PLC and manual button SB₃Receiving PLC input address X013 and manual button SB₄Receiving PLC input address X014, manual button SB₆An input address X016 of PLC and a manual button SB are connected₇The input address X017 of PLC is connected, and the button SB is started₈Receiving PLC input address X006, stop button SB₉The input address X007 of the PLC is connected, and the common end of each element is connected with the COM end of the input address of the PLC; the PLC output load is driven by a 220V alternating current power supply, and the intermediate relay KA₁The coil of the relay is connected with the output address Y001 of the PLC and the intermediate relay KA₂The coil is connected with the output address Y002 of the PLC and the intermediate relay KA₁Coil and intermediate relay KA₂The normally closed contacts of the relay are connected in series, and the intermediate relay KA₂Coil and intermediate relay KA₁The normally closed contacts of the relay are connected in series, and the intermediate relay KA₁Coil loop and intermediate relay KA₂The coil loop is connected in parallel and then connected with the thermal relay FR₁The auxiliary normally closed contacts are connected in series; intermediate relay KA₃The coil is connected with the output address Y003 of the PLC and the intermediate relay KA₄The coil of the relay is connected with the output address Y004 of the PLC and the intermediate relay KA₃Coil and intermediate relay KA₄The normally closed contacts of the relay are connected in series, and the intermediate relay KA₄Coil and intermediate relay KA₃The normally closed contacts of the relay are connected in series, and the intermediate relay KA₃Coil loop and intermediate relay KA₄The coil loop is connected in parallel and then connected with the thermal relay FR₂The auxiliary normally closed contacts are connected in series; intermediate relay KA₅The coil is connected with the output address Y005 of the PLC and the intermediate relay KA₆The coil is connected with the output address Y006 of the PLC and the intermediate relay KA₅Coil and intermediate relay KA₆The normally closed contacts of the relay are connected in series, and the intermediate relay KA₆Coil and intermediate relay KA₅The normally closed contacts of the relay are connected in series, and the intermediate relay KA₅Coil loop and intermediate relay KA₆The coil loop is connected in parallel and then connected with the thermal relay FR₃The auxiliary normally closed contacts of the power supply are connected in series, and the common end of the output circuit is connected with an alternating current power supply and an emergency stop button SB₀The series circuit is connected to the COM1 end of the PLC; secondly, the intermediate relay controls the circuit connection relation of the alternating current contactor of the main circuit, the circuit is powered by a 380V alternating current power supply, and the alternating current contactor KM₁Coil connected with intermediate relay KA₁Normally open contact of (KM), AC contactor₂Coil connected with intermediate relay KA₂Normally open contact of (KM), AC contactor₃Coil connected with intermediate relay KA₃Normally open contact of (KM), AC contactor₄Coil connected with intermediate relay KA₄Normally open contact of (KM), AC contactor₅Coil connected with intermediate relay KA₅Normally open contact of (KM), AC contactor₆Coil connected with intermediate relay KA₆The normally open contact of (1).

In order to describe the functions of the electric elements of the automatic control system and the assignment of the PLC input addresses and output addresses 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	Control the reverse rotation of the driving motor M1 of the glue unloading vehicleThe glue unloading vehicle walks 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	The motor M3 for controlling the rotation of the spiral knife rotates reversely, 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

TABLE 3 PLC output Address assignment and output element description

Symbol of elements	Name of element	Output address	Function(s)
				KA1	Intermediate relay	Y001	By controlling the on-off of the alternating current contactor KM1, the driving motor M1 of the glue discharging vehicle is controlled to rotate forwards, and the glue discharging vehicle moves leftwards.
KA2	Intermediate relay	Y002	By controlling the on-off of the alternating current contactor KM2, the driving motor M1 of the glue discharging vehicle is controlled to rotate reversely, and the glue discharging vehicle moves rightwards.
				KA3	Intermediate relay	Y003	The manipulator lifting motor M2 is controlled to rotate forwards and descend by controlling the on-off of the alternating current contactor KM 3.
KA4	Intermediate relay	Y004	The manipulator lifting motor M2 is controlled to rotate reversely by controlling the on-off of the alternating current contactor KM4, and the manipulator ascends.
				KA5	Intermediate relay	Y005	By controlling the on-off of the alternating current contactor KM5, the spiral knife rotating motor M3 is controlled to rotate forward, and the spiral knife rotates clockwise.
KA6	Intermediate relay	Y006	By controlling the on-off of the alternating current contactor KM6, the rotating motor M3 of the spiral knife is controlled to rotate reversely, and the spiral knife rotates anticlockwise.

The automatic control process of the 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 KM₅When the electric power is on, the spiral knife rotates to moveMachine 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, stopping the lifting of the manipulator, delaying for 3 seconds, and then setting 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 KA₂Is powered on to work so thatAC 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 automatic control system is as follows: in order to meet the working requirements of maintenance, debugging, in-situ restoration and the like, a manual control mode is 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 executing 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-off₆Make-and-breakFurther control the spiral knife to rotate 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 is electrified and powered off, so that the on-off control of the contact is realized, and an intermediate relay KA is used₁And 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 pressed₀Can quickly and effectively cut off the programmable controllerThe output part of the (PLC) is provided with power supply loops of all the intermediate relays, so that all the intermediate relays are controlled to be disconnected, all the alternating current contactors are further controlled to be disconnected, 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 KA₂The coil loop of the contactor KM cannot be powered on due to interlocking of the auxiliary normally closed contacts, so that 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 SQ₂For short-circuit protection, ensuring that the power supply line of a Programmable Logic Controller (PLC) is cut off in the event of an overcurrent, so that the PLC is protected from the overcurrentAnd (4) harming.

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 utility model has the advantages that the rubber unloading process of the natural rubber primary processing production line is changed from manual operation to 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 an electrical component layout diagram of an automatic control system according to an embodiment of the present invention.

In the figure 1, a travel switch ST₃2. Manipulator lifting motor M ₂3. Spiral knife rotating motor M₃4. 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 ST ₄11. 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 ST ₁17. A baffle plate of the rubber conveying vehicle.

Fig. 2 is a schematic diagram of a main circuit of an electric automatic control system according to an embodiment of the present invention.

Fig. 3 is a schematic external wiring diagram of the PLC control circuit of the 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 a control circuit intermediate relay of the automatic control system according to the embodiment of the present invention.

Fig. 5 is a diagram of the arrangement of the elements of the control cabinet of the automatic control system according to the embodiment of the present 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 SB₄25. Manual push button SB₆26. Manual push button SB₇27. Air switch QS ₁28. Air switch QS ₂29. Fuse FU 30, Programmable Logic Controller (PLC) 31, intermediate relay KA₁32. Intermediate relay KA₂33. Intermediate relay KA ₃34. Intermediate relay KA₄35. Intermediate relay KA ₅36. Intermediate relay KA ₆37. AC contactor KM₁38. AC contactor KM ₂39. AC contactor KM ₃40. AC contactor KM ₆41. AC contactor KM₅42. AC contactor KM₄43. Thermal relay FR₁44. Thermal relay FR₂45. Thermal relay FR ₃46. Wire inlet and outlet hole 47, box 48, box door 49 and emergency stop button SB₀。

Fig. 6 is a flowchart of a program of a Programmable Logic Controller (PLC) of the automatic control system according to an embodiment of the present invention.

Detailed Description

The utility model adopts the technical proposal that: the glue unloading process machine is provided with a bracket, and the upper part of an upright post of the bracket is provided with a travel switch ST₃(1) The lower part of the upright post of the bracket is provided with a travel switch ST₂(14) The middle position of the upper part of the bracket is provided with a manipulator (4) and a manipulator lifting motor M₂(2) (ii) a A manipulator separation blade (6) is arranged on the left side surface of the manipulator (4), and a spiral knife rotating motor M is arranged on the upper part of the manipulator (4)₃(3) The lower part of the manipulator (4) is provided with 8 spiral cutters (5); the middle part of the bracket is provided with a rubber unloading vehicle guide rail, and the left side of the rubber unloading vehicle guide rail is provided with a travel switch ST₄(10) The right side of the guide rail of the glue unloading vehicle is provided with a travel switch ST₅(11) The left bracket upright post of the rubber unloading vehicle guide rail is provided with a left buffer block (12) of the rubber unloading vehicle guide rail, the right bracket upright post of the rubber unloading vehicle guide rail is provided with a right buffer block (13) of the rubber unloading vehicle guide rail, the rubber unloading vehicle (9) is arranged on the rubber unloading vehicle guide rail, and the rubber unloading vehicle is used for unloadingA rubber unloading vehicle separation blade (7) is arranged on the left side of the rubber vehicle (9), and a rubber unloading vehicle driving motor M is arranged on the right side of the rubber unloading vehicle (9)₁(8) (ii) a The rubber conveying vehicle guide rail is installed on the ground below the manipulator (4), the rubber conveying vehicle (15) is arranged on the rubber conveying vehicle guide rail, the rubber conveying vehicle separation blade (17) is installed at the front end of the rubber conveying vehicle (15), and the travel switch ST is installed at the inlet of the rubber conveying vehicle guide rail₁(16) (ii) a The ground of the lower part of the upright post of the bracket is provided with a control cabinet, the control cabinet is internally provided with a main circuit, electrical elements required by the control circuit, and a travel switch ST installed on the mechanical site₁(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) A drive motor M of the glue unloading vehicle which is mechanically installed on site is connected with the corresponding input address of a PLC (30) in the control cabinet through a wire inlet and outlet hole (46) of the control cabinet₁(8) Manipulator lifting motor M₂(2) Spiral knife rotating motor M₃(3) Is connected with a corresponding thermal relay in the control cabinet through a wire inlet and outlet hole (46) of the control cabinet.

The automatic control system is composed of a main circuit and a control circuit, wherein the connection relation of electric elements of the main circuit is as follows: air switch QS₁(27) For the main power switch and supplying power to each AC contactor, AC contactor KM₁(37) And an AC contactor KM₂(38) Main contact and thermal relay FR₁(43) Is connected with a thermal element, an AC contactor KM₃(39) And an AC contactor KM₄(42) Main contact and thermal relay FR₂(44) Is connected with a thermal element, an AC contactor KM₅(41) And an AC contactor KM₆(40) Main contact and thermal relay FR₃(45) In a control cabinet, a thermal relay FR₁(43) Through the inlet and outlet wire holes (46) and the driving motor M of the glue discharging vehicle on the spot of the glue discharging machine₁(8) Connected, thermal relay FR in control cabinet₂(44) Manipulator lifting motor M on site of glue unloading machine₂(2) Thermal relay FR connected in control cabinet₃(45) Spiral knife rotating motor M on site of glue unloading machine₃（3）Are connected.

Connection relation of electric elements of the control circuit: firstly, the mechanical PLC (30) control circuit of the glue unloading process is externally connected, the PLC (30) is powered by a 220V alternating current power supply, the 1-gear of a selection switch SA (18) of the input part of the PLC (30) is connected with an input address X000 of the PLC (30), the 2-gear of the selection switch SA (18) is connected with an input address X020 of the PLC (30), and a travel switch ST₁(16) An input address X001 of the PLC (30) and a travel switch ST₂(14) An input address X002 of the PLC (30) and a travel switch ST are connected₃(1) A travel switch ST connected to an input address X003 of the PLC 30₄(10) An input address X004 connected with the PLC (30), a travel switch ST₅(11) An input address X005 of the PLC (30) and a manual button SB are connected₁(21) Receiving the input address X011 of the PLC (30) and a manual button SB₂(22) Receiving the input address X012 of PLC (30) and the manual button SB₃(23) Receiving the input address X013 of PLC (30) and the manual button SB₄(24) Receiving the input address X014 of the PLC (30) and a manual button SB₆(25) An input address X016 of the PLC (30) and a manual button SB are connected₇(26) The input address X017 of the PLC (30) is connected, and the button SB is started₈(19) Receiving the input address X006 of PLC (30), the stop button SB₉(20) The input address X007 of the PLC (30) is connected, and the common end of each element is connected with the COM end of the input address of the PLC (30); intermediate relay KA₁(31) The coil of the relay is connected with the output address Y001 of the PLC (30) and the intermediate relay KA₂(32) The coil of the relay is connected with the output address Y002 of the PLC (30) and the intermediate relay KA₁(31) Coil and intermediate relay KA₂(32) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₂(32) Coil and intermediate relay KA₁(31) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₁(31) Coil loop and intermediate relay KA₂(32) The coil loop is connected in parallel and then connected with the thermal relay FR₁(43) The auxiliary normally closed contacts are connected in series; intermediate relay KA₃(39) The coil of the relay is connected with the output address Y003 of the PLC (30) and the intermediate relay KA₄(34) The coil of the PLC (30) is connected with an output address Y004,intermediate relay KA₃(39) Coil and intermediate relay KA₄(34) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₄(34) Coil and intermediate relay KA₃(39) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₃(39) Coil loop and intermediate relay KA₄(34) The coil loop is connected in parallel and then connected with the thermal relay FR₂(44) The auxiliary normally closed contacts are connected in series; intermediate relay KA₅(35) The coil of the relay is connected with an output address Y005 of the PLC (30) and the intermediate relay KA₆(36) The coil of the relay is connected with the output address Y006 of the PLC (30) and the intermediate relay KA₅(35) Coil and intermediate relay KA₆(36) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₆(36) Coil and intermediate relay KA₅(35) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₅(35) Coil loop and intermediate relay KA₆(36) The coil loop is connected in parallel and then connected with the thermal relay FR₃(45) The auxiliary normally closed contacts of the power supply are connected in series, and the common end of the output circuit is connected with an alternating current power supply and an emergency stop button SB₀(49) The series circuit of the PLC (30) is connected to a COM1 end of the PLC; secondly, the intermediate relay controls the circuit connection relation of the alternating current contactor of the main circuit, the circuit is powered by a 380V alternating current power supply, and the alternating current contactor KM₁(37) Coil connected with intermediate relay KA₁(31) Normally open contact of (KM), AC contactor₂(38) Coil connected with intermediate relay KA₂(32) Normally open contact of (KM), AC contactor₃(39) Coil connected with intermediate relay KA₃(33) Normally open contact of (KM), AC contactor₄(42) Coil connected with intermediate relay KA₄(34) Normally open contact of (KM), AC contactor₅(41) Coil connected with intermediate relay KA₅(35) Normally open contact of (KM), AC contactor₆(40) Coil connected with intermediate relay KA₆(36) The normally open contact of (1).

The automatic control process of the 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 sheet (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 mechanical hand (4) is driven to rotate clockwise by rotating forward to drive 8 spiral knives (5) on the mechanical hand (4), 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 pricked into the 4 rubber blocks until a mechanical hand separation blade (6) touches a 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) Rotate positively to drive the empty rail on the right side of the rubber unloading vehicleThe glue unloading vehicle (9) moves leftwards along the guide rail of the glue unloading vehicle, and when the separation blade (7) of the glue unloading vehicle touches the travel switch ST on the left side of the guide rail of the glue unloading vehicle₄(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 simultaneously stopping the rotation of the intermediate 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) (30), and the ladder diagram program of the Programmable Logic Controller (PLC) (30) can be designed based on the process, so that the Programmable Logic Controller (PLC) (30) can automatically control the glue unloading process machinery.

The manual working mode of the automatic control system is as follows: the selection switch SA (18) is adjusted to 2-gear, the glue unloading process machinery enters a manual control mode, and when a glue carrier (15) carriesThe gluing block enters a glue unloading procedure and touches a travel switch ST₁(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 spiral knife (5) penetrates into the rubber block to a proper depth, the manual button SB is released₁(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) Is reversely rotated to make the spiral knife (5) rotate anticlockwiseRotating and loosening the rubber block, pressing the manual button SB 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

1. The utility model provides a natural rubber preliminary working unloads automatic control system of gluey process machinery which characterized in that: the glue unloading process machine is provided with a bracket, and the upper part of an upright post of the bracket is provided with a travel switch ST₃(1) The lower part of the upright post of the bracket is provided with a travel switch ST₂(14) The middle position of the upper part of the bracket is provided with a manipulator (4) and a manipulator lifting motor M₂(2) (ii) a A manipulator separation blade (6) is arranged on the left side surface of the manipulator (4), and a spiral knife rotating motor M is arranged on the upper part of the manipulator (4)₃(3) The lower part of the manipulator (4) is provided with 8 spiral cutters (5); the middle part of the bracket is provided with a rubber unloading vehicle guide rail, and the left side of the rubber unloading vehicle guide rail is provided with a travel switch ST₄(10) The right side of the guide rail of the glue unloading vehicle is provided with a travel switch ST₅(11) The left bracket upright post of the rubber unloading vehicle guide rail is provided with a left buffer block (12) of the rubber unloading vehicle guide rail, the right bracket upright post of the rubber unloading vehicle guide rail is provided with a right buffer block (13) of the rubber unloading vehicle guide rail, the rubber unloading vehicle guide rail is provided with a rubber unloading vehicle (9), the left side of the rubber unloading vehicle (9) is provided with a rubber unloading vehicle separation blade (7), and the right side of the rubber unloading vehicle (9) is provided with a rubber unloading vehicle driving motor M₁(8) (ii) a The rubber conveying vehicle guide rail is installed on the ground below the manipulator (4), the rubber conveying vehicle (15) is arranged on the rubber conveying vehicle guide rail, the rubber conveying vehicle separation blade (17) is installed at the front end of the rubber conveying vehicle (15), and the travel switch ST is installed at the inlet of the rubber conveying vehicle guide rail₁(16) (ii) a The ground of the lower part of the upright post of the bracket is provided with a control cabinet, the control cabinet is internally provided with a main circuit, electrical elements required by the control circuit, and a travel switch ST installed on the mechanical site₁(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) A drive motor M of the glue unloading vehicle which is mechanically installed on site is connected with the corresponding input address of a PLC (30) in the control cabinet through a wire inlet and outlet hole (46) of the control cabinet₁(8) Manipulator lifting motor M₂(2) Spiral knife rotating motor M₃(3) Is connected with a corresponding thermal relay in the control cabinet through a wire inlet and outlet hole (46) of the control cabinet.

2. The automatic control system of a natural rubber primary processing rubber unloading process machine as claimed in claim 1, wherein: the electric elements arranged on the spot of the glue unloading machine are connected with the electric elements in the control cabinet through the wire inlet and outlet holes (46), and the thermal relay FR in the control cabinet₁(43) Glue unloading vehicle driving motor M on site of glue unloading machine₁(8) Connected, thermal relay FR in control cabinet₂(44) Manipulator lifting motor M on site of glue unloading machine₂(2) Thermal relay FR connected in control cabinet₃(45) Spiral knife rotating motor M on site of glue unloading machine₃(3) Connected, travel switch ST₁(16) An input address X001 of the PLC (30) and a travel switch ST₂(14) An input address X002 of the PLC (30) and a travel switch ST are connected₃(1) A travel switch ST connected to an input address X003 of the PLC 30₄(10) An input address X004 connected with the PLC (30), a travel switch ST₅(11) And the input address X005 of the PLC (30) is connected.

3. The automatic control system of a natural rubber primary processing rubber unloading process machine as claimed in claim 1, wherein: the connection of the control circuit of the mechanical PLC (30) in the glue unloading process is that the 1 gear of the selection switch SA (18) is connected with the input address X000 of the PLC (30), the 2 gear of the selection switch SA (18) is connected with the input address X020 of the PLC (30), and the travel switch ST₁(16) An input address X001 of the PLC (30) and a travel switch ST₂(14) An input address X002 of the PLC (30) and a travel switch ST are connected₃(1) Is connected with the input of the PLC (30)Address X003, travel switch ST₄(10) An input address X004 connected with the PLC (30), a travel switch ST₅(11) An input address X005 of the PLC (30) and a manual button SB are connected₁(21) Receiving the input address X011 of the PLC (30) and a manual button SB₂(22) Receiving the input address X012 of PLC (30) and the manual button SB₃(23) Receiving the input address X013 of PLC (30) and the manual button SB₄(24) Receiving the input address X014 of the PLC (30) and a manual button SB₆(25) An input address X016 of the PLC (30) and a manual button SB are connected₇(26) The input address X017 of the PLC (30) is connected, and the button SB is started₈(19) Receiving the input address X006 of PLC (30), the stop button SB₉(20) The input address X007 of the PLC (30) is connected, and the common end of each element is connected with the COM end of the input address of the PLC (30); intermediate relay KA₁(31) The coil of the relay is connected with the output address Y001 of the PLC (30) and the intermediate relay KA₂(32) The coil of the relay is connected with the output address Y002 of the PLC (30) and the intermediate relay KA₁(31) Coil and intermediate relay KA₂(32) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₂(32) Coil and intermediate relay KA₁(31) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₁(31) Coil loop and intermediate relay KA₂(32) The coil loop is connected in parallel and then connected with the thermal relay FR₁(43) The auxiliary normally closed contacts are connected in series; intermediate relay KA₃(39) The coil of the relay is connected with the output address Y003 of the PLC (30) and the intermediate relay KA₄(34) The coil of the relay is connected with an output address Y004 of the PLC (30) and the intermediate relay KA₃(39) Coil and intermediate relay KA₄(34) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₄(34) Coil and intermediate relay KA₃(39) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₃(39) Coil loop and intermediate relay KA₄(34) The coil loop is connected in parallel and then connected with the thermal relay FR₂(44) The auxiliary normally closed contacts are connected in series; intermediate relay KA₅(35) The coil of the relay is connected with an output address Y005 of the PLC (30) and the intermediate relay KA₆(36) Is connected to PLOutput address Y006 of C (30), intermediate relay KA₅(35) Coil and intermediate relay KA₆(36) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₆(36) Coil and intermediate relay KA₅(35) The normally closed contacts of the relay are connected in series, and the intermediate relay KA₅(35) Coil loop and intermediate relay KA₆(36) The coil loop is connected in parallel and then connected with the thermal relay FR₃(45) The auxiliary normally closed contacts are connected in series, and the common end of the output circuit is connected with an alternating current 220V power supply and an emergency stop button SB₀(49) Is connected to the COM1 terminal of the PLC (30).