CN114001174A - Safety pneumatic rotary joint of press - Google Patents
Safety pneumatic rotary joint of press Download PDFInfo
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- CN114001174A CN114001174A CN202111393478.1A CN202111393478A CN114001174A CN 114001174 A CN114001174 A CN 114001174A CN 202111393478 A CN202111393478 A CN 202111393478A CN 114001174 A CN114001174 A CN 114001174A
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- 238000005070 sampling Methods 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 50
- 238000012544 monitoring process Methods 0.000 claims description 46
- 230000003068 static effect Effects 0.000 claims description 24
- 238000013459 approach Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Abstract
The invention provides a safe pneumatic rotary joint of a press machine, which comprises a direct-acting balance type normally-open two-position two-way electromagnetic valve, a rotary joint and a pressure switch, wherein the direct-acting balance type normally-open two-position two-way electromagnetic valve comprises a valve core and a valve body, the valve body is provided with an input port, an exhaust port, an input channel, a sampling hole and a valve cavity, the input port, the exhaust port and the input channel are respectively communicated with the valve cavity, the sampling hole is communicated with the input channel, and the valve core is arranged in the valve cavity in a sliding manner; the rotary joint is connected with the valve body, an output port and an output channel are arranged on the rotary joint, the output channel is communicated with the input channel, and the output port is communicated with the output channel; the pressure switch is connected with the valve body and used for sending two different state signals of the presence and absence of compressed air in the rotary joint. The function of in time discharging compressed air in the clutch to atmosphere when the pneumatic rotary joint damages and the press control system produces the trouble of incident improves the security of press.
Description
Technical Field
The invention relates to a pneumatic rotary joint, in particular to a safe pneumatic rotary joint of a press machine.
Background
The pneumatic rotary joint is a transition joint sealing device for inputting a gas medium from a static system to a dynamic rotary system.
When pneumatic rotary joint used in the press, connect between safe double valve and clutch, after pneumatic rotary joint damaged the spin function of losing, the pipeline that links to each other with pneumatic rotary joint can appear beating around compelling dead phenomenon, makes the unable normal compressed gas of carrying of pipeline, and the unable discharge of compressed gas in the clutch causes the press to dash even, or mechanical press causes the press to dash even because of common cause trouble (CCF), appears the bodily injury accident easily.
Therefore, a pneumatic rotary joint capable of timely discharging compressed gas in the clutch is needed to solve the problem of continuous impact of the press machine.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the safe pneumatic rotary joint of the press machine, which has the functions of timely exhausting and sending signals, avoids the continuous punching of the press machine and avoids personal injury accidents. The technical scheme adopted by the invention is as follows:
a safety pneumatic rotary joint for a press comprises
The direct-acting balanced type normally-open two-position two-way electromagnetic valve comprises a valve core and a valve body, wherein an input port, an exhaust port, an input channel, a sampling hole and a valve cavity are arranged on the valve body, the input port, the exhaust port and the input channel are respectively communicated with the valve cavity, the sampling hole is communicated with the input channel, the valve core is arranged in the valve cavity in a sliding mode and used for controlling the connection and disconnection between the input port and the exhaust port, when the valve core slides to a first position, the input port is communicated with the exhaust port, and when the valve core slides to a second position, the input port is not communicated with the exhaust port;
the rotary joint is connected with the valve body, an output port and an output channel are arranged on the rotary joint, the output channel is communicated with the input channel, and the output port is communicated with the output channel and used for transmitting compressed gas to the clutch; and
the pressure switch is connected to the valve body and used for sending different state signals of the rotary joint, a vent hole is formed in the pressure switch and communicated with the sampling hole, compressed gas enters the pressure switch, and the state signals of the pressure switch are changed by the aid of the pressure of the compressed gas.
Furthermore, a valve port is arranged in the valve cavity, when the valve core moves to the position of the valve port, the valve core is positioned at the second position, and the input port is not communicated with the exhaust port;
the valve cavity is internally provided with a first spring which is abutted with the valve core, when the valve core moves from the first position to the second position, the first spring is compressed, and when the valve core moves from the second position to the first position, the first spring is reset.
Furthermore, the input channel comprises a first input channel and a second input channel, two ends of the first input channel are respectively communicated with the input port and the second input channel, and the second input channel is communicated with the output channel;
the valve port is arranged at the joint of the valve cavity and the first input channel.
Furthermore, a dry electromagnet is arranged in the valve cavity and used for controlling the position switching of the valve core between the first position and the second position;
the dry type electromagnet comprises an electromagnet coil, a static iron core, an ejector rod and a movable iron core, wherein the electromagnet coil is fixed in a valve cavity, the static iron core and the movable iron core are sequentially arranged in the electromagnet coil, the static iron core is fixedly connected with the electromagnet coil, the movable iron core is in sliding connection with the electromagnet coil, and the movable iron core is close to or far away from the static iron core when the electromagnet coil is powered on or powered off;
the ejector rod penetrates through the static iron core, two ends of the ejector rod are respectively connected with the movable iron core and the valve core, when the valve core is in contact with the static iron core, the valve core is located at a first position, and when the movable iron core is close to the static iron core, the valve core is switched from the first position to a second position under the driving of the ejector rod.
Further, still be equipped with manual button and connector on the valve body, manual button one end butt moves the iron core, the connector is connected with electromagnet coil, the connector is used for connecting the control system of press to control electromagnet coil's the on-off.
Further, the rotary joint comprises a housing connected to the valve body, and the output passage is arranged on the housing;
the output channel comprises a first output channel and a second output channel, the first output channel is communicated with the second input channel, the second output channel is communicated with the first output channel, and the output port is communicated with the second output channel.
Furthermore, a second spring, a spring pad, a sliding sleeve, a shaft retainer ring and a joint are sequentially arranged in the second output channel, and one end of the joint extends out of the shell;
a hole check ring and a bearing are sequentially arranged in the second output channel, the bearing is connected between the shell and the joint to realize the rotation of the joint, and the hole check ring is arranged on one side of the bearing, away from the shaft check ring, and connected to the shell to fix the bearing;
the output port penetrates through the joint.
Further, the pressure switch comprises a microswitch, a switch seat, a first monitoring channel and a second monitoring channel, the switch seat is connected to the valve body, the vent hole is formed in the switch seat, the first monitoring channel and the second monitoring channel are sequentially arranged in the switch seat, the first monitoring channel is communicated with the second monitoring channel, and the second monitoring channel is communicated with the vent hole;
a microswitch is arranged in the first monitoring channel, a diaphragm, a push rod and a third spring are arranged in the second monitoring channel, one end of the push rod is abutted against the diaphragm, the other end of the push rod extends into the first monitoring channel, and the push rod is pushed to be close to and contact with the microswitch when the diaphragm is elastically deformed so as to realize reversing of the microswitch;
the third spring is sleeved on the push rod, one end of the third spring is abutted to the switch seat, and when the push rod is close to the micro switch, the third spring is compressed.
Furthermore, a base for plugging the second monitoring channel is arranged on the switch base, and the base is abutted to the membrane to fix the position of the membrane in the second monitoring channel.
Furthermore, a cover shell used for covering the first monitoring channel is arranged on the switch base.
The invention has the advantages that:
this application has pneumatic rotary joint and damages and in time discharges the function to atmospheric with compressed air in the clutch when press control system produces the trouble of incident, improve the security of press, utilize the cooperation of direct action balanced type normally open two-position two-way solenoid valve and pressure switch, make behind the rotary joint loss spin function, through the motion of case in the valve pocket input port and gas vent switch on, compressed gas is discharged from the gas vent, pressure switch is influenced by compressed gas pressure and is changed signal state simultaneously, accomplish the exhaust fault indication, the security of press work is improved, avoid the continuous rush phenomenon that compressed gas can't discharge and cause, the personal injury accident of avoiding appearing.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional view from a first perspective of the present invention.
FIG. 3 is a cross-sectional view from a second perspective of the present invention.
Fig. 4 is a diagram of the normal working state of the invention without ventilation.
Fig. 5 is a diagram of the normal ventilation operation state of the present invention.
FIG. 6 is a diagram of the security function startup state of the present invention.
In the figure: 1-a direct-acting balanced normally-open two-position two-way electromagnetic valve, 2-a rotary joint, 3-a pressure switch, 101-an input port, 102-an exhaust port, 103-a sampling hole, 104-a valve core, 105-a valve body, 106-a valve port, 107-a first spring, 108-a first input channel, 109-a second input channel, 110-an electromagnet coil, 111-a static iron core, 112-a mandril, 113-a movable iron core, 114-a manual button, 115-a plug-in unit, 201-an output port, 202-a shell, 203-a first output channel, 204-a second output channel, 205-a second spring, 206-a spring pad, 207-a sliding sleeve, 208-a shaft retainer ring, 209-a joint, 210-a hole retainer ring, 211-a bearing and 301-a vent hole, 302-microswitch, 303-switch seat, 304-first monitoring channel, 305-second monitoring channel, 306-diaphragm, 307-push rod, 308-third spring, 309-base, 310-housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to the attached drawings 1-3, the invention provides a safety pneumatic rotary joint of a press, which comprises a direct-acting balance type normally-open two-position two-way electromagnetic valve 1, a rotary joint 2 and a pressure switch 3.
The direct-acting balanced normally-open two-position two-way electromagnetic valve 1 comprises a valve core 104 and a valve body 105, wherein an input port 101, an exhaust port 102, an input channel, a sampling hole 103 and a valve cavity are arranged on the valve body 105, the input port 101, the exhaust port 102 and the input channel are respectively communicated with the valve cavity, the sampling hole 103 is communicated with the input channel, the valve core 104 is arranged in the valve cavity in a sliding mode and used for controlling the connection and disconnection between the input port 101 and the exhaust port 102, when the valve core 104 slides to a first position, the input port 101 is communicated with the exhaust port 102, and when the valve core 104 slides to a second position, the input port 101 is not communicated with the exhaust port 102;
the rotary joint 2 is connected to the valve body 105, an output port 201 and an output channel are arranged on the rotary joint 2, the output channel is communicated with the input channel, and the output port 201 is communicated with the output channel and used for transmitting compressed gas to the clutch;
This application direct-acting balance formula is normally opened two-position two-way solenoid valve 1 and the equal electric control system who connects the press of pressure switch 3, realizes intelligent control, and wherein the control system of press is the PLC controller, as the well-known technique of technical staff in the field, does not do here and describe repeatedly.
In a first state (a normal working state without ventilation), the press machine is electrified, a control system of the press machine immediately controls a valve core 104 of the direct-acting balance type normally open two-position two-way electromagnetic valve 1 to move from a first position to a second position in a valve cavity, the communication between an input port 101 and an exhaust port 102 is cut off, at the moment, a pressure switch 3 is reset, and a state signal that compressed air is not arranged in a rotary joint is sent to the control system of the press machine; in a second state (normal ventilation working state), the rotary joint is ventilated, compressed gas enters through the input port 101 and is discharged from the output port 201, meanwhile, a part of the compressed gas enters the pressure switch 3 through the sampling hole 103 and the vent hole 301, the pressure switch 3 is reversed under the pressure action of the compressed gas, and a state signal that the compressed gas is in the rotary joint is sent to a control system of the press; and in a third state (a safety function starting state), the rotary joint loses a rotary function, the direct-acting balanced normally-open two-position two-way solenoid valve 1 is controlled by a control system of the press machine to be powered off, the valve core 104 moves to a first position from a second position in the valve cavity, the input port 101 is communicated with the exhaust port 102, compressed gas is exhausted to the atmosphere from the exhaust port 102, the pressure of the compressed gas entering the pressure switch 3 is insufficient, the pressure switch 3 resets, a state signal without compressed air in the rotary joint is sent to the control system of the press machine, therefore, the purposes of timely exhausting and signal indication are achieved, continuous flushing of the press machine is avoided, and personal injury accidents are avoided.
In the present application, a valve port 106 is arranged in the valve chamber, when the valve element 104 moves to the position corresponding to the valve port 106, the valve element 104 is in the second position, and the input port 101 is not communicated with the exhaust port 102; the valve port 106 limits the movement stroke of the valve core 104 and facilitates the positioning of the communication between the input port 101 and the exhaust port 102.
A first spring 107 is arranged in the valve cavity, the first spring 107 is abutted with the valve core 104, when the valve core 104 moves from the first position to the second position, the first spring 107 is compressed, and when the valve core 104 moves from the second position to the first position, the first spring 107 is reset; the elastic force generated by the compression of the first spring 107 is utilized to cause the direct-acting balance type normally open two-position two-way electromagnetic valve 1 to be powered off, and then the valve core 104 is pushed from the second position to the first position under the action of the elastic force, so that the reset action is completed.
In some embodiments, the spool 104 is provided with a receiving cavity at one end, the receiving cavity extends along the valve cavity, and the first spring 107 is provided in the receiving cavity, thereby limiting the position of the first spring 107.
In the present application, in order to facilitate the installation of the components in the valve body 105, the input channel includes a first input channel 108 and a second input channel 109, the two ends of the first input channel 108 are respectively communicated with the input port 101 and the second input channel 109, and the second input channel 109 is communicated with the output channel; the valve port 106 is arranged at the joint of the valve cavity and the first input passage 108, and the sampling hole 103 is communicated with the first input passage 108.
In the present application, a dry electromagnet is disposed in the valve chamber to control the position of the valve element 104 to be switched between the first position and the second position.
Specifically, the dry electromagnet comprises an electromagnet coil 110, a static iron core 111, a push rod 112 and a movable iron core 113, wherein the electromagnet coil 110 is fixed in a valve cavity, the static iron core 111 and the movable iron core 113 are sequentially arranged in the electromagnet coil 110, the static iron core 111 is fixedly connected with the electromagnet coil 110, the movable iron core 113 is in sliding connection with the electromagnet coil 110, and the electromagnet coil 110 is powered on and powered off to enable the movable iron core 113 to be close to or far away from the static iron core 111; the ejector rod 112 penetrates through the static iron core 111, two ends of the ejector rod 112 are respectively connected with the movable iron core 113 and the valve core 104, when the valve core 104 is in contact with the static iron core 111, the valve core 104 is in a first position, and when the movable iron core 113 approaches the static iron core 111, the valve core 104 is switched from the first position to a second position under the driving of the ejector rod 112.
The electromagnet coil 110 is electrified to generate an electromagnetic field to enable the movable iron core 113 to approach the static iron core 111, so that the movable iron core 113 drives the valve core 104 to move from the first position to the second position through the ejector rod 112, the valve port 106 is blocked, the communication between the input port 101 and the exhaust port 102 is cut off, the elasticity of the first spring 107 is increased, and preparation is made for ventilation of the rotary joint; when the electromagnet coil 110 is powered off, the electromagnetic field disappears, and the movable iron core 113, the plunger 112 and the valve element 104 are reset under the elastic force of the first spring 107, so that the valve element 104 moves from the second position to the first position, the valve port 106 is opened, the input port 101 and the exhaust port 102 are communicated, and exhaust is realized.
In addition, the valve body 105 is further provided with a manual button 114 and a connector 115, one end of the manual button 114 is abutted against the movable iron core 113, the connector 115 is connected with the electromagnet coil 110, and the connector 115 is used for connecting a control system of the press machine so as to control the on-off of the electromagnet coil 110.
In the present application, the rotary joint 2 comprises a housing 202, the housing 202 being connected to the valve body 105, the output channel being provided on the housing 202; the output channels comprise a first output channel 203 and a second output channel 204, the first output channel 203 is communicated with the second input channel 109, the second output channel 204 is communicated with the first output channel 203, and the output port 201 is communicated with the second output channel 204.
In some embodiments, the first output channel 203 and the second output channel 204 are vertically disposed.
The specific structure of the rotary joint 2 is as follows: a second spring 205, a spring pad 206, a sliding sleeve 207, a shaft retainer ring 208 and a joint 209 are sequentially arranged in the second output channel 204, and one end of the joint 209 extends out of the shell 202; a hole retainer 210 and a bearing 211 are sequentially arranged in the second output channel 204, the bearing 211 is connected between the shell 202 and the joint 209 to realize the rotation of the joint 209, the hole retainer 210 is arranged on one side, away from the shaft retainer 208, of the bearing 211 and is connected to the shell 202 to fix the bearing 211; the output port 201 extends through the connector 209.
The second spring 205 provides an axial floating space for the joint 209, and the friction between the joint 209 and the sliding sleeve 207 is reduced by the shaft retainer 208, so that the joint 209 can rotate more smoothly.
In the present application, the pressure switch 3 includes a micro switch 302, a switch base 303, a first monitoring channel 304 and a second monitoring channel 305, the switch base 303 is connected to the valve body 105, the vent hole 301 is disposed on the switch base 303, the first monitoring channel 304 and the second monitoring channel 305 are sequentially disposed in the switch base 303, the first monitoring channel 304 and the second monitoring channel 305 are communicated, and the second monitoring channel 305 and the vent hole 301 are communicated; a microswitch 302 is arranged in the first monitoring channel 304, a diaphragm 306, a push rod 307 and a third spring 308 are arranged in the second monitoring channel 305, one end of the push rod 307 is abutted against the diaphragm 306, the other end of the push rod 307 extends into the first monitoring channel 304, and when the diaphragm 306 is elastically deformed, the push rod 307 is pushed to be close to and contacted with the microswitch 302, so that the reversing of the microswitch 302 is realized; the third spring 308 is sleeved on the push rod 307, one end of the third spring 308 abuts against the switch base 303, and when the push rod 307 approaches the micro switch 302, the third spring 308 is compressed.
The first monitoring channel 304 provides an installation space for the micro switch 302, the second monitoring channel 305 is used for installing a push rod 307 and a diaphragm 306, when compressed gas enters the second monitoring channel 305 from the vent hole 301, the pressure of the compressed gas rises to push the diaphragm 306 to generate elastic deformation, then the push rod 307 is pushed to be close to and contact with the micro switch 302, the micro switch 303 is enabled to be reversed, then a signal sent by the pressure switch 3 to a control system of the press machine is changed, and the elastic force of the third spring 308 is increased in the process that the push rod 307 is close to the micro switch 302, so that the push rod 307 is reset conveniently.
In order to facilitate the position fixing of the diaphragm 306 in the second monitoring channel 305 so as to elastically deform in a specific direction, a base 309 for blocking the second monitoring channel 305 is disposed on the switch base 303, and the base 309 abuts against the diaphragm 306 so as to fix the position of the diaphragm 306 in the second monitoring channel 205.
In some embodiments, the base 309 is bolted to the switch housing 303, facilitating removal of the base 309 and replacement of the diaphragm 306, push rod 307, and third spring 308.
In order to facilitate the installation and replacement of the micro switch 302, the switch base 303 is provided with a cover 310 for covering the first monitoring channel 304.
In some embodiments, the cover 310 is bolted to the switch mount 303 and the micro-switch 302 is bolted to the switch mount 303.
In addition, by arranging the sampling hole 103, the first input channel 108, the second input channel 109, the first output channel 203 and the second output channel 204, the purpose is to match the assembly position relationship among the housing 202, the switch seat 303 and the valve body 105, so that the structure of the whole rotary joint is more compact, the position arrangement requirements among the components inside the valve body 105, the housing 202 and the switch seat 303 are met under the condition that the flow of compressed gas is not influenced, the processing procedures of the valve body 105, the housing 202 and the switch seat 303 can be simplified to a certain extent, and the production cost is reduced.
The specific working principle of the application is as follows:
the rotary joint is in a first state (namely an unvented normal working state): as shown in fig. 4, when the press is powered on, that is, the electromagnet coil 110 in the direct-acting balanced normally-open two-position two-way electromagnetic valve 1 is energized through the control system, after the electromagnet coil 110 is energized, the movable iron core 113 approaches the stationary iron core 111 under the action of electromagnetic force, and simultaneously drives the ejector rod 112 and the valve core 104 to move, the valve core 104 moves from the first position to the second position to abut against the valve port 106, so that the input port 101 is not communicated with the exhaust port 102, the input port 101 is communicated with the output port 201, the elastic force of the first spring 107 is increased, the micro switch 302 in the pressure switch 3 is in an original state, and a state signal that no compressed air is in the rotary joint is sent to the control system of the press.
The rotary joint is in a second state (ventilation normal working state): as shown in fig. 5, compressed gas is input into the input port 101, enters the clutch through the input port 101, the first input channel 108, the second input channel 109, the first output channel 203, the second output channel 204 and the output port 201, the slide block of the press machine normally moves, meanwhile, the compressed gas enters the second monitoring channel 305 through the sampling hole 103 and the vent hole 301, the pressure of the compressed gas rises, the diaphragm 306 elastically deforms under the pressure of the compressed gas, the push rod 307 is pushed to approach the micro switch 302, the elastic force of the third spring 308 increases until the push rod 307 contacts the micro switch 302 to cause the micro switch 302 to change direction, and a state signal that the compressed gas is in the rotary joint is sent to a control system of the press machine.
The rotary joint is in a third state (a safety function starting state), as shown in fig. 6, the rotary joint loses the rotary function, the direct-acting balanced normally-open two-position two-way solenoid valve 1 is controlled by a control system of a press machine to be powered off, the solenoid coil 110 is powered off and loses electromagnetic force, the movable iron core 113, the ejector rod 112 and the valve core 104 are reset under the elastic force of the first spring 107, the valve core 104 returns to the first position from the second position and opens the valve port 106, the input port 101 is communicated with the exhaust port 102, at the moment, compressed gas in the clutch is exhausted to the atmosphere through the second output channel 204, the first output channel 203, the second input channel 109, the first input channel 108 and the exhaust port 102, most of the compressed gas entering the input port 101 is exhausted to the atmosphere from the exhaust port 102, meanwhile, the pressure of the compressed gas is reduced, the push rod 307 is reset under the elastic force of the third spring 308 and is separated from the microswitch 302, the diaphragm 306 is reset under its own spring force and the microswitch 302 is restored to its original state, sending a status signal to the control system of the press that there is no compressed air in the swivel.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a press safety pneumatic rotary joint which characterized in that: comprises that
The direct-acting balanced type normally-open two-position two-way electromagnetic valve (1) comprises a valve core (104) and a valve body (105), wherein an input port (101), an exhaust port (102), an input channel, a sampling hole (103) and a valve cavity are arranged on the valve body (105), the input port (101), the exhaust port (102) and the input channel are respectively communicated with the valve cavity, the sampling hole (103) is communicated with the input channel, the valve core (104) is arranged in the valve cavity in a sliding mode and used for controlling the connection and disconnection between the input port (101) and the exhaust port (102), when the valve core (104) slides to a first position, the input port (101) is communicated with the exhaust port (102), and when the valve core (104) slides to a second position, the input port (101) is not communicated with the exhaust port (102);
the rotary joint (2) is connected to the valve body (105), an output port (201) and an output channel are arranged on the rotary joint (2), the output channel is communicated with the input channel, and the output port (201) is communicated with the output channel and used for transmitting compressed gas to the clutch; and
pressure switch (3) connects in valve body (105) for send have in rotary joint (2), two different state signals of non-compressed air, be equipped with air vent (301) on pressure switch (3), air vent (301) are linked together with sampling hole (103), in order to realize compressed gas entering pressure switch (3), utilize compressed gas's pressure size to change pressure switch (3) state signal.
2. Press safety pneumatic swivel according to claim 1, characterized in that: a valve port (106) is arranged in the valve cavity, when the valve core (104) moves to the position corresponding to the valve port (106), the valve core (104) is located at a second position, and the input port (101) is not communicated with the exhaust port (102);
a first spring (107) is arranged in the valve cavity, the first spring (107) is abutted to the valve core (104), when the valve core (104) moves from the first position to the second position, the first spring (107) is compressed, and when the valve core (104) moves from the second position to the first position, the first spring (107) is reset.
3. Press safety pneumatic swivel according to claim 2, characterized in that: the input channel comprises a first input channel (108) and a second input channel (109), two ends of the first input channel (108) are respectively communicated with the input port (101) and the second input channel (109), and the second input channel (109) is communicated with the output channel;
the valve port (106) is arranged at the connection position of the valve cavity and the first input channel (108).
4. Press safety pneumatic swivel according to any one of claims 1-3, characterized in that: a dry electromagnet is arranged in the valve cavity and used for controlling the position switching of the valve core (104) between a first position and a second position;
the dry type electromagnet comprises an electromagnet coil (110), a static iron core (111), a push rod (112) and a movable iron core (113), the electromagnet coil (110) is fixed in a valve cavity, the static iron core (111) and the movable iron core (113) are sequentially arranged in the electromagnet coil (110), the static iron core (111) is fixedly connected with the electromagnet coil (110), the movable iron core (113) is in sliding connection with the electromagnet coil (110), and the electromagnet coil (110) is powered on and powered off to enable the movable iron core (113) to be close to or far away from the static iron core (111);
the ejector rod (112) penetrates through the static iron core (111), two ends of the ejector rod (112) are respectively connected with the movable iron core (113) and the valve core (104), when the valve core (104) is in contact with the static iron core (111), the valve core (104) is located at a first position, when the movable iron core (113) approaches the static iron core (111), the valve core (104) is driven by the ejector rod (112) to be switched from the first position to a second position.
5. Press safety pneumatic swivel according to claim 4, characterized in that: still be equipped with manual button (114) and connector (115) on valve body (105), manual button (114) one end butt movable core (113), connector (115) are connected with electromagnet coil (110), connector (115) are used for connecting the control system of press to the break-make electricity of control electromagnet coil (110).
6. Press safety pneumatic swivel according to claim 3, characterized in that: the rotary joint (2) comprises a shell (202), the shell (202) is connected to the valve body (105), and the output channel is arranged on the shell (202);
the output channel comprises a first output channel (203) and a second output channel (204), the first output channel (203) is communicated with the second input channel (109), the second output channel (204) is communicated with the first output channel (203), and the output port (201) is communicated with the second output channel (204).
7. Press safety pneumatic swivel according to claim 6, characterized in that: a second spring (205), a spring pad (206), a sliding sleeve (207), a shaft retainer ring (208) and a joint (209) are sequentially arranged in the second output channel (204), and one end of the joint (209) extends out of the shell (202);
a hole retainer ring (210) and a bearing (211) are sequentially arranged in the second output channel (204), the bearing (211) is connected between the shell (202) and the joint (209) to realize the rotation of the joint (209), and the hole retainer ring (210) is arranged on one side, away from the shaft retainer ring (208), of the bearing (211) and connected to the shell (202) to fix the bearing (211);
the output port (201) penetrates through the joint (209).
8. Press safety pneumatic swivel according to claim 1, characterized in that: the pressure switch (3) comprises a microswitch (302), a switch seat (303), a first monitoring channel (304) and a second monitoring channel (305), the switch seat (303) is connected to the valve body (105), the vent hole (301) is arranged on the switch seat (303), the first monitoring channel (304) and the second monitoring channel (305) are sequentially arranged in the switch seat (303), the first monitoring channel (304) is communicated with the second monitoring channel (305), and the second monitoring channel (305) is communicated with the vent hole (301);
a microswitch (302) is arranged in the first monitoring channel (304), a diaphragm (306), a push rod (307) and a third spring (308) are arranged in the second monitoring channel (305), one end of the push rod (307) is abutted to the diaphragm (306), the other end of the push rod (307) extends into the first monitoring channel (304), and the push rod (307) is pushed to be close to and contacted with the microswitch (302) when the diaphragm (306) is elastically deformed so as to realize the reversing of the microswitch (302);
the third spring (308) is sleeved on the push rod (307), one end of the third spring (308) is abutted to the switch base (303), and when the push rod (307) is close to the microswitch (302), the third spring (308) is compressed.
9. Press safety pneumatic rotary joint according to claim 8, characterized in that: the switch base (303) is provided with a base (309) for plugging the second monitoring channel (305), and the base (309) is abutted against the diaphragm (306) to fix the position of the diaphragm (306) in the second monitoring channel (205).
10. Press safety pneumatic rotary joint according to claim 8 or 9, characterized in that: and a cover shell (310) used for covering the first monitoring channel (304) is arranged on the switch base (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111393478.1A CN114001174B (en) | 2021-11-23 | 2021-11-23 | Safety pneumatic rotary joint of press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111393478.1A CN114001174B (en) | 2021-11-23 | 2021-11-23 | Safety pneumatic rotary joint of press |
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| Publication Number | Publication Date |
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| CN114001174A true CN114001174A (en) | 2022-02-01 |
| CN114001174B CN114001174B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111393478.1A Active CN114001174B (en) | 2021-11-23 | 2021-11-23 | Safety pneumatic rotary joint of press |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000011388A (en) * | 1998-07-02 | 2000-02-25 | 다까다 요시유끼 | Manually operated supply and exhaust changeover valve for fluid pressure apparatus |
| CN2613628Y (en) * | 2003-04-30 | 2004-04-28 | 无锡市拓发自控设备厂 | Pneumatic rotation joint |
| CN101642967A (en) * | 2009-07-17 | 2010-02-10 | 无锡市拓发自控设备有限公司 | Safety-control double valve for press |
| CN103075545A (en) * | 2012-12-28 | 2013-05-01 | 无锡市拓发自控设备有限公司 | Rotary dual valve with three-level safety function |
| CN204592501U (en) * | 2015-04-23 | 2015-08-26 | 宁波佳尔灵气动机械有限公司 | Band quick inserting joint direct action solenoid valve |
| WO2021094128A1 (en) * | 2019-11-12 | 2021-05-20 | Nass Magnet Gmbh | Pneumatic valve apparatus for a compressed air device, and transmission-control or clutch system comprising the pneumatic valve apparatus |
| CN214248453U (en) * | 2020-12-25 | 2021-09-21 | 浙江迦南科技股份有限公司 | Rotatable automatic valve opening mechanism |
-
2021
- 2021-11-23 CN CN202111393478.1A patent/CN114001174B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000011388A (en) * | 1998-07-02 | 2000-02-25 | 다까다 요시유끼 | Manually operated supply and exhaust changeover valve for fluid pressure apparatus |
| CN2613628Y (en) * | 2003-04-30 | 2004-04-28 | 无锡市拓发自控设备厂 | Pneumatic rotation joint |
| CN101642967A (en) * | 2009-07-17 | 2010-02-10 | 无锡市拓发自控设备有限公司 | Safety-control double valve for press |
| CN103075545A (en) * | 2012-12-28 | 2013-05-01 | 无锡市拓发自控设备有限公司 | Rotary dual valve with three-level safety function |
| CN204592501U (en) * | 2015-04-23 | 2015-08-26 | 宁波佳尔灵气动机械有限公司 | Band quick inserting joint direct action solenoid valve |
| WO2021094128A1 (en) * | 2019-11-12 | 2021-05-20 | Nass Magnet Gmbh | Pneumatic valve apparatus for a compressed air device, and transmission-control or clutch system comprising the pneumatic valve apparatus |
| CN214248453U (en) * | 2020-12-25 | 2021-09-21 | 浙江迦南科技股份有限公司 | Rotatable automatic valve opening mechanism |
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| Publication number | Publication date |
|---|---|
| CN114001174B (en) | 2024-04-05 |
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