CN213517995U - Automatic control system of rubber vehicle for pressing and releasing hydraulic arm of natural rubber production line - Google Patents

Abstract

The utility model discloses a rubber vehicle automatic control system is put to natural rubber production line's hydraulic pressure arm pressure. The method is characterized in that: the rubber unloading machinery has the components such as solenoid valve, travel switch and motor on the scene, there are air switch in the switch board, time relay, auxiliary relay, elements such as direct current constant voltage power supply, change over switch, button, on-the-spot travel switch, the solenoid valve, the motor links to each other with the component in the switch board, adjust to automatic work shelves when change over switch, solenoid valve control hydraulic pressure arm action, the work of compressing tightly in turn and relaxing the rubber car is accomplished automatically to hydraulic pressure arm cooperation manipulator, the problem that the rubber car bottom plate was pulled up by the manipulator because of adhesion strength is big has been solved and has been glued piece and rubber car. The rubber unloading device has the advantages that the rubber unloading process of the rubber production line can be operated more smoothly, the full automation of the production process is realized, and a foundation is laid for the full automation realization of the rubber production line; on the other hand, the labor cost can be saved, and the economic benefit of natural rubber processing enterprises is improved.

Description

Automatic control system of rubber vehicle for pressing and releasing hydraulic arm of natural rubber production line

Technical Field

The utility model relates to an agricultural product processing machinery automatic control system, concretely relates to rubber vehicle automatic control system is put to hydraulic pressure arm pressure of natural rubber 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 natural rubber primary processing production line is divided into a drying part and a packaging part, since the last ten years, domestic researchers have more researches on the aspect of natural rubber drying, most of the researches are concentrated on the research on a rubber drying process, and few researches are found on an automatic control system of a natural rubber primary processing equipment production line.

According to the production process, the design of the whole natural rubber production line comprises the following key processes: a charging section; a drying part; the discharging part is a furnace discharging part, a glue discharging part and a frame hanging 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 (5) a glue supplementing part. At present, the production of rubber primary processing enterprises is labor-intensive, the automation level is low, the labor intensity of workers is high, the efficiency is low, and the product quality is uneven, so that a university of Hainan, Fan, army and Qing professor team strives to research full-automatic natural rubber primary processing equipment in nearly ten years. Because the dried natural rubber block has certain viscosity, the rubber block is firmly bonded with the rubber car bottom plate, and when the full-automatic rubber unloading manipulator is used for unloading rubber, the problem that the rubber car bottom plate is pulled up by the rubber unloading manipulator along with the rubber block often occurs, so that the normal work of the full-automatic rubber unloading manipulator is influenced. In order to improve the automation and the intellectualization of the primary processing of the natural rubber and realize the large-scale and modernization of the production of the natural rubber so as to improve the processing quality of the natural rubber, the automatic control system of the hydraulic arm rubber pressing and releasing vehicle of the natural rubber production line is researched and designed, and the full-automatic control of the unloading process after the drying of the natural rubber is realized.

Disclosure of Invention

The utility model relates to a high-efficient, safe natural rubber production line's hydraulic pressure arm is pressed and is put gluey car automatic control system. The automatic control system can solve the problem that the rubber car bottom plate is pulled up by the rubber unloading manipulator due to the high bonding strength of the rubber block and the rubber car bottom plate in the rubber unloading process, so that the rubber unloading process is smoother, the rubber unloading process can be fully automated, the labor cost can be saved, the production efficiency can be improved, and the economic benefit of natural rubber primary processing enterprises can be improved.

The utility model adopts the technical proposal that: the mechanical structure and the electrical elements of the automatic control system of the hydraulic arm rubber pressing and releasing vehicle are provided with a frame of a rubber unloading machine, a manipulator is arranged right above the frame, a blocking piece is arranged on the manipulator, and the left upper part of the frame is provided with a travel switch ST 8; the lower part of the frame is provided with a hydraulic station which consists of an oil pump motor M, an oil pipe, an electromagnetic valve, a pressing electromagnetic valve coil YV1 and a releasing electromagnetic valve coil YV2 thereof, a hydraulic cylinder 1, a hydraulic arm 1, a hydraulic cylinder 2 and a hydraulic arm 2; a control cabinet is arranged beside the frame, a travel switch ST8 on the frame is connected with a time relay KT2 in the control cabinet through an inlet and outlet wire hole of the control cabinet, a pressing intermediate relay KA12 in the control cabinet is connected with a pressing electromagnetic valve coil YV1 on the glue unloading machine site through an inlet and outlet wire hole of the control cabinet, a releasing intermediate relay KA13 in the control cabinet is connected with a releasing electromagnetic valve coil YV2 on the glue unloading machine site, and an oil pump motor M on the glue unloading machine site is connected with a thermal relay FR in the control cabinet.

The production process flow of the automatic control system of the hydraulic arm rubber pressing and releasing vehicle comprises the following steps: the initial position of the manipulator is at a travel switch ST8 on the upper part of the frame, the rubber vehicle filled with the dried rubber blocks stops at a rubber unloading station, when rubber unloading is started, the manipulator moves downwards, the pressing solenoid valve coil YV1 is electrified to act, the hydraulic cylinder 1 drives the hydraulic arm 1 to drive the hydraulic arm 2 to start pressing the rubber vehicle with the hydraulic cylinder 2, the process of pressing the rubber vehicle lasts for 6 seconds, the hydraulic arm 1 and the hydraulic arm 2 press the rubber vehicle in place, the pressing solenoid valve coil YV1 is powered off, after the manipulator grabs the rubber blocks, the manipulator moves upwards, when the rubber blocks are separated from the rubber vehicle, the electromagnetic valve coil YV2 is loosened, the hydraulic cylinder 1 drives the hydraulic arm 1 and the hydraulic cylinder 2 to drive the hydraulic arm 2 to start releasing the rubber vehicle, the process of releasing the rubber vehicle with the hydraulic arm 1 and the hydraulic arm 2 lasts for 6 seconds, the hydraulic arm 1 and the hydraulic arm 2 release the rubber vehicle in place, and the manipulator rises to the initial, the stop piece touches a travel switch ST8, the solenoid valve coil YV2 is released, and the automatic pressing and releasing processes of the rubber vehicle by one hydraulic arm are completed.

The power supply and the oil pump circuit are composed of: the power supply and oil pump circuit comprises a three-phase air switch QF1, a stop button SB1, a start button SB2, an alternating current contactor KM, a thermal relay FR, an oil pump motor M, a single-phase air switch QF2 and a 24V direct current stabilized power supply.

Connection description of electric elements of power supply and oil pump circuit: the electric elements of the power supply and the oil pump circuit are arranged in the control cabinet and on the spot of the glue unloading machine according to the circuit given by the attached drawing, and a thermal relay FR in the control cabinet is connected with an oil pump motor M of a hydraulic station on the spot of the glue unloading machine; the three-phase alternating current 380V power supply is connected with a three-phase air switch QF1, the three-phase air switch QF1 is connected with a main contact of an alternating current contactor KM, the main contact of the alternating current contactor KM is connected with a thermal element of a thermal relay FR, the thermal element of the thermal relay FR is connected with an oil pump motor M, a 24V direct current stabilized power supply is connected with an alternating current single-phase 220V power supply through a single-phase air switch QF2, and the 24V direct current stabilized power supply can output direct current 24V to a hydraulic arm pressing and releasing rubber vehicle control circuit; the single-phase line of the power supply is connected with a stop button SB1, a stop button SB1 is connected with a start button SB2 in series, an auxiliary normally open contact of an alternating current contactor KM is connected with a start button SB2 in parallel, a start button SB2 is connected with a coil of the alternating current contactor KM in series, a coil of the alternating current contactor KM is connected with an auxiliary normally closed contact of a thermal relay FR in series, and the auxiliary normally closed contact of the thermal relay FR returns to a power supply neutral line.

The working process of the power supply and the oil pump circuit is as follows: after a three-phase air switch QF1 is closed to switch on a power supply, a coil of an alternating current contactor KM is electrified by pressing a starting button SB2, a three-phase main contact of the alternating current contactor KM is switched on an oil pump motor M, the oil pump motor M starts a hydraulic station, an auxiliary normally open contact of the alternating current contactor KM is connected with a starting button SB2 in parallel to play a self-locking role, if an overload condition occurs, a thermal element of a thermal relay FR can switch off the power supply of the oil pump motor M, and an auxiliary normally closed contact of the thermal relay FR can switch off a coil loop of the alternating current contactor; after the glue unloading work is finished, the coil of the alternating current contactor KM can be powered off by pressing a stop button SB1, so that the three-phase main contact of the alternating current contactor KM is disconnected, the oil pump motor M stops running, and the hydraulic station stops working; after the single-phase air switch QF2 is closed and the power supply is switched on, the 24V direct current stabilized power supply can output 24V direct current to the hydraulic arm pressure rubber discharging vehicle control circuit.

The hydraulic arm presses and puts the rubber vehicle control circuit and constitutes: the electric elements of the control circuit of the hydraulic arm pressure-discharge rubber vehicle comprise a single-phase air switch QF2, a change-over switch SA3, a time relay KT1, a time relay KT2, a pressing intermediate relay KA12, a releasing intermediate relay KA13, a change-over switch SA4, a pressing electromagnetic valve coil YV1, a releasing electromagnetic valve coil YV2, a travel switch ST8 and a 24V direct-current stabilized power supply.

Connection description of electric elements of a control circuit of the hydraulic arm pressing and releasing rubber vehicle: the electric elements of the control circuit of the hydraulic arm pressure and release rubber vehicle are arranged in a control cabinet and on the site of a rubber unloading machine according to the circuit given by the attached drawing, a travel switch ST8 on the machine is connected with a time relay KT2 in the control cabinet, a compression intermediate relay KA12 in the control cabinet is connected with a compression electromagnetic valve coil YV1 of a hydraulic station, and a relaxation intermediate relay KA13 is connected with a relaxation electromagnetic valve coil YV2 of the hydraulic station; the control circuit of the hydraulic arm pressing and rubber discharging vehicle is powered by a 24V direct-current stabilized power supply, a change-over switch SA3 is switched to a 2-gear position to control the pressing and rubber discharging vehicle manually by the hydraulic arm, a change-over switch SA4 is switched to a 2-gear position to control the pressing and rubber discharging vehicle manually by the hydraulic arm, and a change-over switch SA4 is switched to a 3-gear position to control the pressing and rubber discharging vehicle manually by the hydraulic arm; the change-over switch SA3 is turned to the 3-gear, and is automatically controlled by a hydraulic arm pressure-discharge rubber vehicle, the 3-gear of SA3 is connected in series with a normally closed contact of a travel switch ST8, a normally closed contact of a travel switch ST8 is connected in series with a time-delay disconnection contact of a time relay KT2, a time-delay disconnection contact of the time relay KT2 is connected in series with a normally closed contact of a release intermediate relay KA13, a normally closed contact of the release intermediate relay KA13 is connected with a coil of a compression intermediate relay KA12, a coil of the time relay KT2 is connected in parallel with a coil of the time relay KT1 and then connected in parallel with a series circuit part of the time-delay disconnection contact of the time relay 2, the normally closed contact of the release intermediate relay; the 3-gear of the SA3 is also connected in series with a delay closed contact of a time relay KT1, a delay closed contact of a time relay KT1 is also connected in series with a normally closed contact of a pressing intermediate relay KA12, a normally closed contact of the pressing intermediate relay KA12 is also connected in series with a coil of a releasing intermediate relay KA13, and a change-over switch SA3 and the coils of all relays are respectively connected with two ends of a 24V direct-current stabilized power supply; the normally open contact of the pressing intermediate relay KA12 is connected with the pressing electromagnetic valve coil YV1 in series and then connected with the positive end and the negative end of the 24V direct-current stabilized power supply, and the normally open contact of the loosening intermediate relay KA13 is connected with the loosening electromagnetic valve coil YV2 in series and then connected with the positive end and the negative end of the 24V direct-current stabilized power supply.

The control process of the automatic control system of the hydraulic arm pressing rubber vehicle is as follows: the single-phase air switch QF2 is closed, a 24V direct-current stabilized power supply starts working, a change-over switch SA3 is adjusted to 3 grades of automatic working after confirming, at the moment, a rubber vehicle with rubber blocks stops at a rubber unloading station, a manipulator moves downwards from an initial position, namely a position of a travel switch ST8, the manipulator leaves the travel switch ST8, the travel switch ST8 resets, a normally closed contact of the travel switch ST8 is closed, a coil of a pressing intermediate relay KA12 is electrified, a normally open contact of the pressing intermediate relay KA12 is closed, a pressing electromagnetic valve coil YV1 is electrified, a hydraulic cylinder 1 drives a hydraulic arm 1 and a hydraulic cylinder 2 to drive a hydraulic arm 2 to simultaneously act, the hydraulic arm 1 and the hydraulic arm 2 start pressing the rubber vehicle, the coil of the pressing intermediate relay KA12 is electrified, the coil of a time relay KT1 and the coil of a time relay KT2 are electrified, after the hydraulic arm 1 and the hydraulic arm 2 are pressed for 6 seconds, the hydraulic arm, the time delay disconnection contact of the time relay KT2 is disconnected, the coil of the pressing intermediate relay KA12 is disconnected, the normally open contact of the pressing intermediate relay KA12 is disconnected, the pressing electromagnetic valve coil YV1 is disconnected, at the moment, the hydraulic arm 1 and the hydraulic arm 2 still keep the state of pressing the rubber vehicle, a standby manipulator catches the rubber block in the rubber vehicle, namely the rubber block is separated from the rubber vehicle, the process requires 20 seconds, the time delay closing contact of the time relay KT1 is closed, the coil of the intermediate relay KA13 is loosened and is electrified, the normally open contact of the intermediate relay KA13 is loosened, the electromagnetic valve coil YV2 is loosened and is electrified, the hydraulic arm 1 and the hydraulic cylinder 2 are driven by the hydraulic cylinder 1 to simultaneously act, the rubber vehicle starts to be released by the hydraulic arm 1 and the hydraulic arm 2, the rubber vehicle is loosened in place after 6 seconds, the mechanical hand catches the rubber block to move upwards until the travel switch ST8 is touched, the coil of time relay KT1 cuts off the power supply, and the time delay closed contact of time relay KT1 breaks off in the twinkling of an eye, and the coil that relaxes auxiliary relay KA13 cuts off the power supply, and the normally open contact disconnection that relaxes auxiliary relay KA13 makes and relaxs solenoid valve coil YV2 outage, and time relay KT 2's coil also cuts off the power supply this moment, and the action process of a hydraulic arm 1 and hydraulic arm 2 pressure release rubber car is automatic to be accomplished.

Further, a coil loop of the pressing intermediate relay KA12 is connected in series with a normally closed contact of the loosening intermediate relay KA13 for interlocking, and a coil loop of the loosening intermediate relay KA13 is connected in series with a normally closed contact of the pressing intermediate relay KA12 for interlocking, so that mutual influences of actions of the pressing rubber vehicle and the loosening rubber vehicle of the hydraulic arm 1 and the hydraulic arm 2 are avoided.

Furthermore, in order to enable the automatic control system to be convenient to debug and overhaul, a manual control circuit part is designed, when the change-over switch SA3 is adjusted to be in a 2-gear position, manual control can be conducted, the change-over switch SA4 is adjusted to be in a 2-gear position, the hydraulic arm 1 and the hydraulic arm 2 execute rubber vehicle pressing actions, the hydraulic arm 1 and the hydraulic arm 2 press in place, namely the change-over switch SA4 is adjusted to be in a middle stop gear position, the change-over switch SA4 is adjusted to be in a 3-gear position, the hydraulic arm 1 and the hydraulic arm 2 execute rubber vehicle releasing actions, and the hydraulic arm 1 and the hydraulic arm 2 relax in place, namely the change-over switch SA4 is adjusted to.

Further, when the switch SA3 is adjusted to stop, neither the automatic control circuit nor the manual control circuit is operated.

Further, when an accident of short circuit occurs due to element aging, the three-phase air switch QF1 and the single-phase air switch QF2 both have a short-circuit protection function, and when the current exceeds a setting value, a circuit power supply can be automatically cut off, so that the personal safety of operators and the equipment safety in the production process are protected.

The utility model has the advantages that the problem that the rubber unloading machinery works because the rubber block is adhered to the rubber car bottom plate when the rubber is unloaded in the natural rubber production line is solved, the automation of the hydraulic arm rubber car pressing and releasing process is realized, and the foundation is laid for the comprehensive automation of the natural rubber primary processing production line; on the other hand, the labor cost can be saved, and the economic benefit of natural rubber processing enterprises is improved.

Drawings

Fig. 1 is a diagram showing a mechanical structure and an arrangement of electrical components according to an embodiment of the present invention.

In the figure 1, a frame 2, a mechanical arm 3, a rubber vehicle 4, a baffle 5, a travel switch ST86, an oil pump motor M7, a pressing solenoid valve coil YV18, a releasing solenoid valve coil YV 29, an oil pipe 10, a hydraulic arm 111, a hydraulic arm 212, a hydraulic cylinder 113, a hydraulic cylinder 231, an electromagnetic valve 32, a control cabinet 33 and a hydraulic station

Fig. 2 is a schematic diagram of a power supply and oil pump circuit according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a control circuit of a hydraulic arm pressing and releasing rubber vehicle according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the arrangement of the elements of the control cabinet according to the embodiment of the present invention.

In fig. 4, 14 is a box door 15, a stop button SB116, a start button SB217, a change-over switch SA318, a box 19, a three-phase air switch QF 120, a time relay KT121, a time relay KT222, a wiring terminal 23, an intermediate relay KA1224, an intermediate relay KA1325 is released, an inlet and outlet hole 26, a change-over switch SA427, an alternating current contactor KM 28, a thermal relay FR 29.24V direct current stabilized power supply 30 and a single-phase air switch QF 2.

Detailed Description

The mechanical structure of the automatic control system of the hydraulic arm pressure rubber release vehicle is connected with an electrical element: the glue unloading machine is provided with a frame (1), a manipulator (2) is arranged right above the frame (1), a blocking piece (4) is arranged on the manipulator (2), and a travel switch ST8 (5) is arranged at the upper left part of the frame (1); the hydraulic station (33) is arranged at the lower part of the frame (1), the hydraulic station (33) is provided with an oil pump motor M (6), an oil pipe (9), an electromagnetic valve (31), a pressing electromagnetic valve coil YV1 (7) and a releasing electromagnetic valve coil YV2 (8), a hydraulic cylinder 1 (12), a hydraulic arm 1 (10), a hydraulic cylinder 2 (13) and a hydraulic arm 2 (11); a control cabinet (32) is arranged beside a frame (1), electric elements of a control system are arranged in the control cabinet (32), a travel switch ST8 (5) is connected with a time relay KT2 (21) in the control cabinet (32) through an inlet and outlet wire hole (25), a pressing intermediate relay KA12 (23) in the control cabinet (32) is connected with a pressing electromagnetic valve coil YV1 (7) through the inlet and outlet wire hole (25), a loosening intermediate relay KA13 (24) in the control cabinet (32) is connected with a loosening electromagnetic valve coil YV2 (8) through the inlet and outlet wire hole (25), and an oil pump motor M (6) is connected with a thermal relay FR (28) in the control cabinet (32) through the inlet and outlet wire hole (25).

The production process flow of the automatic control system of the hydraulic arm rubber pressing and releasing vehicle comprises the following steps: after the glue block is separated from the glue vehicle (3), the hydraulic cylinder 1 (10) and the hydraulic cylinder 2 (13) drive the hydraulic arm 1 (10) and the hydraulic cylinder 2 (11) to release the glue vehicle (3) and the hydraulic arm 2 (13) drive the hydraulic arm 2 (11) to release the glue vehicle (3) after 6 seconds, and after 6 seconds, the hydraulic cylinder 1 (12) drives the hydraulic arm 1 (10) and the hydraulic cylinder 2 (13) drive the hydraulic arm 2 (11) to release the glue vehicle (3) and 6 seconds, the hydraulic arm 1 (10) and the hydraulic arm 2 (11) release the glue vehicle (3) in place, and the mechanical arm (2) rises to the stroke switch ST8 (5) at the initial position of the glue discharging mechanical machine, the stop piece (4) touches a travel switch ST8 (5), and the automatic rubber vehicle pressing and releasing processes of a hydraulic arm 1 (10) and a hydraulic arm 2 (11) are completed.

The components in the control cabinet (32) are formed and connected with the electric components arranged on the spot of the glue unloading machine: a stop button SB1 (15), a start button SB2 (16), a change-over switch SA3 (17) and a change-over switch SA4 (26) are arranged on a door (14) of the control cabinet (32); a three-phase air switch QF1 (19), a single-phase air switch QF2 (30), a time relay KT1 (20), a time relay KT2 (21), a wiring terminal (22), a pressing intermediate relay KA12 (23), a releasing intermediate relay KA13 (24), an alternating current contactor KM (27), a thermal relay FR (28) and a 24V direct current stabilized power supply (29) are arranged in a box body (18) of the control cabinet (32); in the production site of the glue unloading machine, a compression solenoid valve coil YV1 (7), a release solenoid valve coil YV2 (8), a travel switch ST8 (5) and an oil pump motor M (6) are arranged; a pressing solenoid valve coil YV1 (7), a releasing solenoid valve coil YV2 (8), a travel switch ST8 (5) and an oil pump motor M (6) in a glue unloading production field are connected with electric elements in a control cabinet (32) through a wire inlet and outlet hole (25) according to circuits given by the attached drawings.

The automatic control process of the hydraulic arm pressing rubber vehicle is as follows: after a three-phase air switch QF1 (19) and a single-phase air switch QF2 (30) are closed to switch on power, a starting button SB2 (16) is pressed to electrify a coil of an alternating current contactor KM (27), a main contact of the alternating current contactor KM (27) is switched on the power of an oil pump motor M (6) so as to start the hydraulic station (33) to work, a change-over switch SA3 (17) is confirmed to be adjusted to 3 grades of automatic work, a rubber car (3) containing rubber blocks is at a rubber unloading station at the moment, a manipulator (2) moves downwards from a travel switch ST8 (5) at the initial position of a rubber unloading machine, a baffle (4) arranged on the manipulator (2) leaves a travel switch ST8 (5), the travel switch ST8 (5) is reset, a normally closed contact of the travel switch ST8 (5) is closed, a coil of an intermediate relay KA12 (23) is electrified, a normally open contact of an intermediate relay 12 (23) is closed, a coil YV solenoid valve 1 (7) is electrified, the hydraulic cylinder 1 (12) drives the hydraulic arm 1 (10) and the hydraulic cylinder 2 (13) drives the hydraulic arm 2 (11) to act simultaneously, the hydraulic arm 1 (10) and the hydraulic arm 2 (11) start to press the rubber vehicle, a coil of the pressing intermediate relay KA12 (23) is electrified, a coil of the time relay KT1 (20) and a coil of the time relay KT2 (21) are electrified, after the hydraulic arm 1 (10) and the hydraulic arm 2 (11) are pressed for 6 seconds, the hydraulic arm 1 (10) and the hydraulic arm 2 (11) press the rubber vehicle in place, a time-delay disconnection contact of the time relay KT2 (21) is disconnected, a coil of the pressing intermediate relay KA12 (23) is disconnected, a normally-open contact of the pressing intermediate relay KA12 (23) is disconnected to disconnect a pressing electromagnetic valve coil YV1 (7), and the hydraulic arm 1 (10) and the hydraulic arm 2 (11) still keep pressing the rubber vehicle, after a manipulator (2) grabs a rubber block in a rubber vehicle (3), namely the rubber block is separated from the rubber vehicle (3), the process needs 20 seconds, a time delay closing contact of a time relay KT1 (20) is closed, a coil of an intermediate relay KA13 (24) is released to be electrified, a release solenoid valve coil YV2 (8) is electrified, a hydraulic cylinder 1 (12) drives a hydraulic arm 1 (10) and a hydraulic cylinder 2 (13) drives the hydraulic arm 2 (11) to act simultaneously, the hydraulic arm 1 (10) and the hydraulic arm 2 (11) start to release the rubber vehicle (3), after 6 seconds, the hydraulic arm 1 (10) and the hydraulic arm 2 (11) completely release the rubber vehicle, the manipulator (2) grabs the rubber block to move upwards until the manipulator (4) touches a stroke switch KA 8 (5), the coil KT of the time relay KT1 (20) is powered off, the time delay closing contact of the time relay KT1 (20) is opened instantaneously, and the coil of the intermediate relay 13 (24) is released to be powered off, the normally open contact of the release intermediate relay KA13 (24) is disconnected, the release solenoid valve coil YV2 (8) is powered off, the coil of the time relay KT2 (21) is powered off, and the action processes of the glue pressing car and the glue releasing car of one hydraulic arm 1 (10) and one hydraulic arm 2 (11) are automatically completed.

Further, a coil loop of the pressing intermediate relay KA12 (23) is connected in series to release a normally closed contact of the intermediate relay KA13 (24) for interlocking, and a coil loop of the releasing intermediate relay KA13 (24) is connected in series to press a normally closed contact of the intermediate relay KA12 (23) for interlocking, so that mutual influences of actions of the pressing rubber vehicle and the releasing rubber vehicle of the hydraulic arm 1 (10) and the hydraulic arm 2 (11) are avoided.

Claims (2)

1. The utility model provides a rubber car automatic control system is put to hydraulic pressure arm pressure of natural rubber production line which characterized in that: the structure and the element connection of the automatic control system are as follows: the glue unloading machine is provided with a frame (1) of a glue unloading machine, a manipulator (2) is arranged right above the frame (1), a baffle (4) is arranged on the manipulator (2), and a travel switch ST8 (5) is arranged at the upper left part of the frame (1); a hydraulic station (33) is arranged at the lower part of the frame (1), the hydraulic station (33) consists of an oil pump motor M (6), an oil pipe (9), an electromagnetic valve (31), a pressing electromagnetic valve coil YV1 (7) and a releasing electromagnetic valve coil YV2 (8) on the electromagnetic valve (31), a hydraulic cylinder 1 (12), a hydraulic arm 1 (10), a hydraulic cylinder 2 (13) and a hydraulic arm 2 (11); a control cabinet (32) is arranged beside a frame (1), electric elements of a control system are arranged in the control cabinet (32), the electric elements in a mechanical field are connected with the electric elements in the control cabinet (32) through an inlet and outlet wire hole (25), a travel switch ST8 (5) is connected with a time relay KT2 (21) in the control cabinet (32), a pressing intermediate relay KA12 (23) in the control cabinet (32) is connected with a pressing electromagnetic valve coil YV1 (7) of a hydraulic station (33), a releasing intermediate relay KA13 (24) is connected with a releasing electromagnetic valve coil YV2 (8) of the hydraulic station (33), and an oil pump motor M (6) of the hydraulic station (33) is connected with a thermal relay FR (28) in the control cabinet (32).

2. The automatic control system of the hydraulic arm rubber-pressing and releasing vehicle of the natural rubber production line according to claim 1, characterized in that: a hydraulic arm pressing and releasing rubber vehicle control circuit in the control cabinet (32) is connected with electrical elements arranged on a mechanical site, the hydraulic arm pressing and releasing control circuit is powered by a 24V direct-current stabilized voltage power supply (29), a change-over switch SA3 (17) is turned to a 2-gear position to be manually controlled, a change-over switch SA4 (26) is turned to a 2-gear position to be manually controlled by hydraulic arm pressing, and a change-over switch SA4 (26) is turned to a 3-gear position to be manually controlled by hydraulic arm releasing; the automatic control of hydraulic arm pressure discharge is realized by switching a change-over switch SA3 (17) to a 3-gear position, the 3-gear position of SA3 (17) is connected in series with a normally closed contact of a travel switch ST8 (5), a normally closed contact of a travel switch ST8 (5) is connected in series with a delay disconnection contact of a time relay KT2 (21), a delay disconnection contact of a time relay KT2 (21) is connected in series with a normally closed contact of a release intermediate relay KA13 (24), a normally closed contact of a release intermediate relay KA13 (24) is connected with a coil pressing the intermediate relay KA12 (23), and a series circuit part of a coil of the time relay KT2 (21) and a coil of a time relay KT1 (20) is connected in parallel and then connected with a delay disconnection contact of the time relay KT2 (21), a normally closed contact of the release intermediate relay KA13 (24) and a coil pressing the intermediate relay KA12 (; the 3-gear of the SA3 (17) is also connected in series with a delay closed contact of a time relay KT1 (20), a delay closed contact of the time relay KT1 (20) is also connected in series with a normally closed contact of a pressing intermediate relay KA12 (23), a normally closed contact of the pressing intermediate relay KA12 (23) is also connected in series with a coil of a releasing intermediate relay KA13 (24), and a change-over switch SA3 (17) and coils of all relays are respectively connected with two ends of a 24V direct-current stabilized power supply (29); the normally open contact of the pressing intermediate relay KA12 (23) is connected with the pressing electromagnetic valve coil YV1 (7) in series and then connected with the positive end and the negative end of a 24V direct-current stabilized power supply (29), and the normally open contact of the releasing intermediate relay KA13 (24) is connected with the releasing electromagnetic valve coil YV2 (8) in series and then connected with the positive end and the negative end of the 24V direct-current stabilized power supply (29).

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