CN108215085B - Pneumatic electromagnetic valve assembly and hot runner system with same - Google Patents
Pneumatic electromagnetic valve assembly and hot runner system with same Download PDFInfo
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- CN108215085B CN108215085B CN201611155499.9A CN201611155499A CN108215085B CN 108215085 B CN108215085 B CN 108215085B CN 201611155499 A CN201611155499 A CN 201611155499A CN 108215085 B CN108215085 B CN 108215085B
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- 238000006243 chemical reaction Methods 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 5
- 239000012530 fluid Substances 0.000 description 14
- 238000004891 communication Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- MPDDTAJMJCESGV-CTUHWIOQSA-M (3r,5r)-7-[2-(4-fluorophenyl)-5-[methyl-[(1r)-1-phenylethyl]carbamoyl]-4-propan-2-ylpyrazol-3-yl]-3,5-dihydroxyheptanoate Chemical compound C1([C@@H](C)N(C)C(=O)C2=NN(C(CC[C@@H](O)C[C@@H](O)CC([O-])=O)=C2C(C)C)C=2C=CC(F)=CC=2)=CC=CC=C1 MPDDTAJMJCESGV-CTUHWIOQSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2703—Means for controlling the runner flow, e.g. runner switches, adjustable runners or gates
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a pneumatic electromagnetic valve assembly and a hot runner system with the same, wherein the pneumatic electromagnetic valve assembly comprises a pneumatic valve plate and a reversing valve, wherein a pneumatic channel, a pneumatic inlet communicated with the pneumatic valve plate, a pneumatic outlet, a reversing valve through hole, a first interface communicated with an upper cavity of a cylinder and a second interface communicated with a lower cavity of the cylinder are arranged in the pneumatic valve plate; the reversing valves selectively conduct a plurality of reversing valve through holes to form a first flow path or a second flow path; when the first flow path is communicated with the gas path channel, the flowing gas flows from the first interface to the second interface to enable the piston to move along the first direction, and when the second flow path is communicated with the gas path channel, the flowing gas flows from the second interface to the first interface to enable the piston to move along the second direction. The pneumatic electromagnetic valve assembly realizes the accurate control of the flowing direction of flowing gas through the ordered design of the gas path channel and the cooperation of the pneumatic electromagnetic valve assembly and the reversing valve, thereby improving the control performance of the whole system, and has compact structure and small occupied space.
Description
Technical Field
The invention relates to the field of injection molds, in particular to a pneumatic electromagnetic valve assembly and a hot runner system with the pneumatic electromagnetic valve assembly.
Background
A gate pin-gated hot runner injection mold is widely used as an injection mold in which the vertical movement of a gate pin is used to control the opening and closing of a mold gate during injection molding.
Here, the up-and-down motion of the gate valve needle is controlled by the cylinder piston, one end of the piston is connected with the gate valve needle, and when the piston moves up and down, the gate valve needle can be driven to move up and down so as to realize the opening and closing of the gate.
The movement of the piston may be achieved by the impact of a fluid, for example, when the cylinder is a cylinder, by controlling the direction of the flow of the flowing gas.
In the prior art, the flow direction of a flowing body is generally controlled by using the electromagnetic valve assembly, but the electromagnetic valve assembly in the prior art has large volume, large occupied space and unstable working process.
Disclosure of Invention
The invention aims to provide a pneumatic electromagnetic valve assembly and a hot runner system with the pneumatic electromagnetic valve assembly.
To achieve one of the above objects, an embodiment of the present invention provides a pneumatic solenoid valve assembly for controlling piston movement in a cylinder, the pneumatic solenoid valve assembly comprising:
the air valve plate is internally provided with an air passage channel, an air passage inlet, an air passage outlet, a plurality of reversing valve through holes and a plurality of air passage interfaces which are communicated with the air passage channel, wherein the plurality of air passage interfaces comprise a first interface communicated with the upper cavity of the air cylinder and a second interface communicated with the lower cavity of the air cylinder;
the reversing valve is used for selectively conducting a plurality of reversing valve through holes to form a first flow path or a second flow path;
when the first flow direction gas channel and the gas channel are communicated with each other, flowing gas flows from the first interface towards the second interface to enable the piston to move in a first direction, when the second flow direction gas channel and the gas channel are communicated with each other, flowing gas flows from the second interface towards the first interface to enable the piston to move in a second direction, and the first direction is opposite to the second direction.
As a further improvement of an embodiment of the invention, the air passage outlet is connected with the outside, and a silencer is arranged at the air passage outlet.
As a further improvement of an embodiment of the present invention, the air channel outlet includes a first air channel outlet and a second air channel outlet, the plurality of reversing valve through holes include at least a first through hole communicated with the air channel inlet, a second through hole communicated with the first interface, a third through hole communicated with the first air channel outlet, a fourth through hole communicated with the second interface, and a fifth through hole communicated with the second air channel outlet, when the reversing valve is conducted to the first flow channel, the first through hole is conducted to the second through hole, and the fourth through hole is conducted to the third through hole; when the reversing valve is communicated with the second flow path, the first through hole is communicated with the fourth through hole, and the second through hole is communicated with the fifth through hole.
As a further improvement of an embodiment of the present invention, the pneumatic electromagnetic valve assembly further includes a timing controller, and the timing controller is used for controlling the reversing valve to selectively conduct a plurality of reversing valve through holes.
As a further improvement of an embodiment of the present invention, the pneumatic electromagnetic valve assembly further includes a first connector and a second connector, wherein the first connector is used for conducting the first connector and the upper chamber of the cylinder, and the second connector is used for conducting the second connector and the lower chamber of the cylinder.
As a further improvement of an embodiment of the present invention, the pneumatic electromagnetic valve assembly further includes a switching plate, a first connector and a second connector, wherein the switching plate is formed with a first switching hole and a second switching hole, the first connector is used for conducting the first switching hole and the upper cavity of the cylinder, the second connector is used for conducting the second switching hole and the lower cavity of the cylinder, when the valve plate is in butt joint with the switching plate, the first connector is aligned with the first switching hole, and the second connector is aligned with the second switching hole.
As a further improvement of an embodiment of the invention, the pneumatic electromagnetic valve assembly is matched with a template, the template comprises a first template channel communicated with the upper cavity of the air cylinder and a second template channel communicated with the lower cavity of the air cylinder, a first template interface is formed at one end of the first template channel far away from the upper cavity of the air cylinder, a second template interface is formed at one end of the second template channel far away from the lower cavity of the air cylinder, and when the pneumatic valve plate is in butt joint with the template, the first interface is aligned with the first template interface, and the second interface is aligned with the second template interface.
As a further improvement of an embodiment of the present invention, the air valve plate includes an upper surface, a lower surface, and a plurality of side surfaces connecting the upper surface and the lower surface, the plurality of reversing valve through holes, the air passage inlet and the air passage outlet are located at the upper surface, and the plurality of air passage interfaces are located at the side surfaces or the lower surface.
As a further improvement of an embodiment of the present invention, the electromagnetic valve is a two-position five-way valve.
To achieve one of the above objects, an embodiment of the present invention provides a hot runner system, including a pneumatic solenoid valve assembly, a cylinder, a piston, and a hot nozzle assembly according to any one of the above claims, the hot nozzle assembly including a gate and a gate valve pin for opening/closing the gate, the piston controlling the gate valve pin to move to achieve the gate valve pin opening/closing the gate.
Compared with the prior art, the invention has the beneficial effects that: according to the pneumatic electromagnetic valve assembly, through the ordered design of the air passage channels in the air valve plate and the cooperation of the air passage channels and the reversing valve, the accurate control of the flowing air flow direction is realized, so that the control performance of the whole system is improved, and the pneumatic electromagnetic valve assembly is compact in structure and small in occupied space.
Drawings
FIG. 1 is a schematic illustration of an injection molding system according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a mold system according to a first embodiment of the present invention;
FIG. 3 is an overall view of a pneumatic solenoid valve assembly according to a first embodiment of the present invention;
FIG. 4 is an exploded view of a pneumatic solenoid valve assembly according to a first embodiment of the present invention;
fig. 5 is a perspective view showing the upper surface of a gas valve plate (to which a wire protective cover is attached) according to a first embodiment of the present invention;
fig. 6 is a perspective view showing the lower surface of a gas valve plate (to which a wire protective cover is attached) according to the first embodiment of the present invention;
FIG. 7 is a top perspective view of a gas valve plate of a first embodiment of the present invention;
FIG. 8 is a side perspective view of a gas valve plate of a first embodiment of the present invention;
FIG. 9 is a side view of a mold system of a first embodiment of the present invention;
FIG. 10 is an overall view of a pneumatic solenoid valve assembly according to a second embodiment of the present invention;
FIG. 11 is a perspective view showing the upper surface of a gas valve plate (with a wire protective cover attached) according to a second embodiment of the present invention;
fig. 12 is a perspective view showing the lower surface of a gas valve plate (to which a wire protective cover is attached) according to a second embodiment of the present invention;
FIG. 13 is a top perspective view of a gas valve plate of a second embodiment of the present invention;
FIG. 14 is a side perspective view of a gas valve plate of a second embodiment of the present invention;
FIG. 15 is a top view of a mold system according to a second embodiment of the present invention;
FIG. 16 is a side view of a mold system according to a second embodiment of the present invention;
FIG. 17 is a cross-sectional view of a mold system according to a second embodiment of the present invention;
FIG. 18 is a schematic diagram of a conversion plate coupled to a first embodiment in other embodiments of the invention;
FIG. 19 is a schematic view of a conversion plate according to other embodiments of the present invention;
FIG. 20 is a side view of a mold system according to other embodiments of the invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.
In the various illustrations of the present application, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for convenience of illustration, and thus serve only to illustrate the basic structure of the subject matter of the present application.
In addition, terms such as "upper", "above", "lower", "below", and the like, used herein to denote spatially relative positions are used for convenience of description to describe one element or feature relative to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Referring to FIG. 1, an injection molding system 100 according to an embodiment of the invention is schematically illustrated.
In this embodiment, a valve injection molding system is taken as an example, and the injection molding system 100 includes a hopper 10, a barrel 20, and a mold system 30.
The hopper 10 is used for the injection of the gum material 50.
The cartridge 20 is used to mix and deliver the gum material 50 into the mold system 30.
The mold system 30 performs an injection molding process with the received compound 50.
Here, in connection with fig. 2, the mold system 30 includes a hot runner system 40 and a mold cavity 70.
The end of the hot runner system 40 adjacent to the cartridge 20 has a stock inlet 401.
As such, the gum material 50 in the cartridge 20 enters the hot runner system 40 through the gum material inlet 401.
The hot runner system 40 includes a manifold 41, a plurality of heat nozzle assemblies 42, and a cylinder 43, the plurality of heat nozzle assemblies 42 being in communication with the manifold 41, the cylinder 43 being positioned above the manifold 41.
One end of the diverter plate 41 communicates with the stock inlet 401 to receive the stock 50.
Glue 50 is split within splitter plate 41 and flows into each of the nozzle assemblies 42.
The hot nozzle assembly 42 is in communication with the mold cavity 70 and the gum material 50 subsequently enters the product forming mold cavity 70.
Here, the nozzle assembly 42 includes a gate 421 and a gate pin 422 opening/closing the gate 421.
The cylinder 43 includes a cylinder upper chamber 431, a cylinder lower chamber 432, and a piston 433 disposed in the cylinder 43, and the lower end of the piston 433 is connected to the gate valve needle 422.
The fluid flows in the cylinder upper chamber 431 and the cylinder lower chamber 432 to control the upward or downward movement of the piston 433, so that the piston 433 controls the gate valve pin 422 to open/close the gate 421.
Specifically, the cylinder upper chamber 431 has an upper chamber inlet 4311, and the cylinder lower chamber 432 has a lower chamber inlet 4321.
When the fluid enters the cylinder upper cavity 431 from the upper cavity inlet 4311 and the fluid in the cylinder upper cavity 431 presses the fluid in the cylinder lower cavity 432, the fluid in the cylinder lower cavity 432 flows out from the lower cavity inlet 4321, at this time, the cylinder 43 drives the piston 433 to move downwards, and simultaneously, the gate valve needle 422 moves downwards to block the gate 421, the gate 421 is in a closed state, and the glue stock 50 in the hot nozzle assembly 42 cannot flow into the cavity 70.
When the fluid enters the cylinder lower chamber 432 through the lower chamber inlet 4321 and the fluid in the cylinder lower chamber 432 presses the fluid in the cylinder upper chamber 431, the fluid in the cylinder upper chamber 431 flows out through the upper chamber inlet 4311, at this time, the cylinder 43 drives the piston 433 to move upward, and simultaneously, the gate valve needle 422 moves upward to separate from the gate 421, the gate 421 is opened, and the glue stock 50 in the hot nozzle assembly 42 flows into the cavity 70.
It should be noted that the cylinder 43 may be a cylinder, and the fluid may be a flowing gas, but not limited thereto.
Referring to fig. 3-8, the hot runner system 40 further includes a solenoid valve assembly 44, the solenoid valve assembly 44 controlling the flow direction of the fluid to control the movement of the piston 433 within the cylinder 43.
In the first embodiment of the present invention, the solenoid valve assembly 44 is a pneumatic solenoid valve assembly 44a, the cylinder 43 is a cylinder 43a, and the fluid is a flowing gas.
The pneumatic solenoid valve assembly 44a includes a valve plate 441a and at least one reversing valve 442a.
The valve plate 441a is preferably, but not limited to, an air valve plate.
The air valve plate 441a is internally provided with an air passage channel A, an air passage inlet 1a, an air passage outlet 11a, a plurality of reversing valve through holes (2 a, 3a, 4a, 5a and 6 a) and a plurality of air passage interfaces (9 a and 10 a), and the plurality of air passage interfaces (9 a and 10 a) comprise a first interface 10a communicated with the upper cavity 431a of the air cylinder and a second interface 9a communicated with the lower cavity 432a of the air cylinder.
Here, the air path outlet 11a is connected to the outside, and a muffler 113a is provided at the air path outlet 11a.
That is, the discharged flowing gas is not recovered but is directly discharged to the outside, and in order to reduce noise at the time of discharge, a muffler 113a is further provided at the gas path outlet 11a, but not limited thereto.
In the present embodiment, two gas path outlets 111a and 112a are taken as an example, and a muffler 113a is provided at each of the two gas path outlets 111a and 112a.
The reversing valve 442a is used to selectively communicate with the plurality of reversing valve through holes (2 a, 3a, 4a, 5a, 6 a) to form a first flow path or a second flow path.
When the first flow path and the gas path channel a are in communication with each other, the flowing gas flows from the first port 10a toward the second port 9a, so that the piston 433a moves in the first direction X.
When the second flow path and the gas path channel a are in communication, the flowing gas flows from the second port 9a toward the first port 10a, so that the piston 433a moves in the second direction Y, and the first direction X is opposite to the second direction Y.
Here, the first port 10a is connected to the cylinder upper chamber 431a, the second port 9a is connected to the cylinder lower chamber 432a, and when the flowing gas flows from the first port 10a toward the second port 9a, the flowing gas in the cylinder upper chamber 431a presses the flowing gas in the cylinder lower chamber 432a, the piston 433a moves in the first direction X, that is, the piston 433a moves downward, and the gate needle 422 closes the gate 421.
When the flowing gas flows from the second port 9a toward the first port 10a, the flowing gas in the cylinder lower chamber 432a presses the flowing gas in the cylinder upper chamber 431a, and the piston 433a moves in the second direction Y, that is, the piston 433a moves upward, and the gate valve needle 422 opens the gate 421.
The pneumatic electromagnetic valve assembly 44a of the embodiment realizes the accurate control of the flowing gas flow direction through the ordered design of the gas channel A in the gas valve plate 441a and the cooperation of the gas channel A and the reversing valve 442a, thereby improving the control performance of the whole system, and has compact structure and small occupied space.
The present embodiment may further include an air pump (not shown), which includes an air outlet (not shown) connected to the air path inlet 1a, and provides the flowing air for the air path channel a.
In this embodiment, taking three reversing valves 442a as an example, the number of the reversing valves 442a may be determined according to practical situations, and when the number of the reversing valves 442a needs to be increased or decreased, the number of the reversing valve through holes on the air valve plate 441a only needs to be increased or decreased, which is convenient and practical.
In addition, the number of the reversing valves 442a may correspond to the number of the cylinders 43a, that is, one reversing valve 442a controls one cylinder 43a, but not limited thereto, and one reversing valve 442a may control a plurality of cylinders 43a.
The lower part of the reversing valve 442a is provided with a screw (not shown), the air valve plate 441a is provided with a reversing valve threaded hole (not shown), and the reversing valve 442a and the air valve plate 441a are fixed through the mutual matching of the screw and the reversing valve threaded hole.
In the present embodiment, three sets of the first interface 10a and the second interface 9a are taken as an example.
In the present embodiment, the air valve plate 441a has a rectangular parallelepiped shape, but is not limited thereto.
The air valve plate 441a includes an upper surface 4411a, a lower surface 4412a, and a plurality of side surfaces 4413a connecting the upper surface 4411a and the lower surface 4412 a.
Here, the gas valve plate 441a includes four side surfaces 4413a.
The gas path inlet 1a and the gas outlet 11a are positioned at the side 4413a.
The plurality of direction valve through holes (2 a, 3a, 4a, 5a, 6 a) are located at the upper surface 4411a, and the direction valve 442a is disposed at the upper surface 4411a of the air valve plate 441 a.
The first interface 10a and the second interface 9a are disposed at the lower surface 4412 a.
Here, the reversing valve through holes (2 a, 3a, 4a, 5a, 6 a), the air channel inlet 1a, the air channel outlet 11a, the air channel interfaces (9 a, 10 a) and the like are reasonably arranged at different surfaces of the air valve plate 441a, so that the structure is compact, the integration degree is high, and the occupied space is small.
In this embodiment, in conjunction with fig. 9, the pneumatic solenoid valve assembly 44a further includes a first connector 445a, a second connector 446a.
The first connector 445a is used for communicating the first interface 10a with the cylinder upper chamber 431a, and the second connector 446a is used for communicating the second interface 9a with the cylinder lower chamber 432a.
Here, the first joint 445a and the second joint 446a may be screwed to the inner surfaces of the first joint 10a and the second joint 9a, and the outer surfaces of the first joint 445a and the second joint 446a may be screwed to each other, so that the first joint 445a and the first joint 10a and the second joint 446a and the second joint 11a may be fixed by screwing, and the fixing method is not limited to the above description.
In addition, the side of the first joint 445a remote from the first port 10a is directly connected to the upper chamber inlet 4311a of the cylinder upper chamber 431a, and likewise, the side of the second joint 446a remote from the second port 9a is directly connected to the lower chamber inlet 4321a of the cylinder lower chamber 432a.
Specifically, the first connector 445a is connected to the upper chamber inlet 4311a of the upper chamber 431a of the cylinder through the first air pipe 4451a, and the second connector 446a is connected to the lower chamber inlet 4321a of the lower chamber 432a of the cylinder through the second air pipe 4461 a.
In the present embodiment, the reversing valve 442a may be a two-position five-way reversing valve, and is an electromagnetic type reversing valve.
The reversing valve 442a may be connected to a lead 4421a, and the lead 4421a may include a power line and a signal line.
Here, the air pressure reversing valve assembly 44a further includes a junction box 447a and a wire protective cover 448a.
Junction box 447a may receive a lead 4421a that controls the operation of the reversing valve 442a.
The wire 4421a may be threaded into the terminal box 447a through the wire protective cover 448a.
Thus, the wire 4421a can be effectively protected by the junction box 447a and the wire protecting cover 448a, and is neat and orderly.
When the reversing valve 442a is de-energized, a magnetic switch (not labeled) in the solenoid valve 442a is in an initial position, and the first flow path is in an open state; when the reversing valve 442a is energized, a magnetic field is generated in the reversing valve 442a, and the magnetic switch in the solenoid valve 442a reverses under the action of the magnetic field, so that the second flow path is in an open state.
In addition, the pneumatic solenoid valve assembly 44a further includes a timing controller (not shown) that may be connected to the junction box 447a for controlling the selector valve 442a to selectively open the plurality of selector valve through holes (2 a, 3a, 4a, 5a, 6 a), for example, the selector valve 442a controls the energizing/de-energizing process of the selector valve 442a according to a predetermined timing.
The timing controller may also control the operation of the plurality of reversing valves 442a sequentially by preset settings, and may be determined according to the actual situation.
In the present embodiment, the reversing valve 442a is a two-position five-way reversing valve.
Specifically, the plurality of reversing valve through holes (2 a, 3a, 4a, 5a, 6 a) at least comprise a first through hole 2a communicated with the air channel inlet 1a, a second through hole 3a communicated with the first interface 10a, a third through hole 4a communicated with the first air channel outlet 111a, a fourth through hole 5a communicated with the second interface 9a and a fifth through hole 6a communicated with the second air channel outlet 112a.
When the reversing valve 442a is conducting the first flow path, the first through hole 2a is conducting with the second through hole 3a, and the fourth through hole 5a is conducting with the third through hole 4a, that is, the specific flow direction of the first flow path is: the air channel inlet 1 a-the first through hole 2 a-the second through hole 3 a-the first interface 10 a-the first joint 445 a-the cylinder upper cavity 431 a-the cylinder lower cavity 432 a-the second joint 446 a-the second interface 9 a-the fourth through hole 5 a-the third through hole 4 a-the first air channel outlet 111a.
When the reversing valve 442a is conducting the second flow path, the first through hole 2a is conducting with the fourth through hole 5a, and the second through hole 3a is conducting with the fifth through hole 6a, that is, the specific flow direction of the second flow path is: the air channel inlet 1 a-the first through hole 2 a-the fourth through hole 5 a-the second interface 9 a-the second joint 446 a-the lower cylinder chamber 432 a-the upper cylinder chamber 431 a-the first joint 445 a-the first interface 10 a-the second through hole 3 a-the fifth through hole 6 a-the second air channel outlet 112a.
Here, the exhaust positions of the first and second flow paths are different, and the first flow path is exhausted from the first gas path outlet 111a, and the second flow path is exhausted from the second gas path outlet 112a.
The direction valve 442a is not limited to a two-position five-way direction valve, and it is only necessary to ensure that the flowing gas can flow in at least two directions, i.e., the first port 10a flows to the second port 9a and the second port 9a flows to the first port 10 a.
In the second embodiment of the present invention, referring to fig. 10 and 14, the solenoid valve assembly 44 is a pneumatic solenoid valve assembly 44b, the cylinder 43 is a cylinder 43b, and the fluid is a flowing gas.
The difference between this embodiment and the first embodiment is the conduction between the air valve plate 441b and the air cylinder 43b, and the other parts are the same as those of the first embodiment, and will not be described again.
In the present embodiment, the pneumatic solenoid valve assembly 44b includes a valve plate 441b and at least one reversing valve 442b.
An air channel B, an air channel inlet 1B, an air channel outlet 11B, a plurality of reversing valve through holes (2B, 3B, 4B, 5B, 6B) and a plurality of air channel interfaces (9B, 10B) are formed in the air valve plate 441B, and the plurality of air channel interfaces (9B, 10B) comprise a first interface 10B communicated with the upper cavity 431B of the air cylinder and a second interface 9B communicated with the lower cavity 432B of the air cylinder.
In this embodiment, in conjunction with fig. 15-17, the pneumatic solenoid valve assembly 44b is used in conjunction with a template 445 b.
The die plate 445b is disposed in cooperation with the cylinder 43 b.
The die plate 445b includes a first die plate passage 4451b in communication with the cylinder upper chamber 431b, the first die plate passage 4451b being substantially contiguous with the upper chamber inlet 4311b, the end of the first die plate passage 4451b remote from the cylinder upper chamber 431b forming a first die plate interface 4452b.
The die plate 445b includes a second die plate channel 4453b in communication with the cylinder lower chamber 432b, the second die plate channel 4453b being substantially contiguous with the lower chamber inlet 4321b, the end of the second die plate channel 4453b remote from the cylinder lower chamber 432b forming a second die plate interface 4454b.
When the gas valve plate 441b is docked with the die plate 445b, the first interface 10b is aligned with the first die plate interface 4452b and the second interface 9b is aligned with the second die plate interface 4454b.
In the present embodiment, the flow of the flowing gas is smoothly achieved by using the die plate 445b to conduct the gas valve plate 441b and the cylinder 43b, and by simply precisely abutting the gas valve plate 441b against the die plate 445 b.
Specifically, in the present embodiment, the reversing valve 442b is a two-position five-way reversing valve.
The plurality of reversing valve through holes (2 b, 3b, 4b, 5b, 6 b) at least comprise a first through hole 2b communicated with the air channel inlet 1b, a second through hole 3b communicated with the first interface 10b, a third through hole 4b communicated with the first air channel outlet 111b, a fourth through hole 5b communicated with the second interface 9b and a fifth through hole 6b communicated with the second air channel outlet 112b.
When the reversing valve 442b is conducting the first flow path, the first through hole 2b is conducting with the second through hole 3b, and the fourth through hole 5b is conducting with the third through hole 4b, that is, the specific flow direction of the first flow path is: the air channel inlet 1 b-the first through hole 2 b-the second through hole 3 b-the first interface 10 b-the first template interface 4452 b-the first template channel 4451 b-the cylinder upper cavity 431 b-the cylinder lower cavity 432 b-the second template channel 4453 b-the second template interface 4454 b-the second interface 9 b-the fourth through hole 5 b-the third through hole 4 b-the first air channel outlet 111b.
When the reversing valve 442b is conducting the second flow path, the first through hole 2b is conducting with the fourth through hole 5b, and the second through hole 3b is conducting with the fifth through hole 6b, that is, the specific flow direction of the second flow path is: the air channel inlet 1 b-the first through hole 2 b-the fourth through hole 5 b-the second interface 9 b-the second template interface 4454 b-the second template channel 4453 b-the cylinder lower cavity 432 b-the cylinder upper cavity 431 b-the first template channel 4451 b-the first template interface 4452 b-the first interface 10 b-the second through hole 3 b-the fifth through hole 6 b-the second air channel outlet 112b.
Other descriptions of this embodiment may refer to the first embodiment, and are not repeated here.
In other embodiments of the present invention, similar reference numerals are used for like parts in conjunction with fig. 18-20 and with the first and second embodiments described above.
Here, a switching plate 449c may be further provided under the gas valve plate 441c, and the switching plate 449c is formed with a first switching hole 4491c and a second switching hole 4492c.
When the switch plate 449c is incorporated in the first embodiment, the switch plate 449c may be abutted with the gas valve plate 441c, and then the switch plate 449c and the cylinder 43c may be turned on with the first and second joints 445c and 446 c.
Here, the first joint 445c is connected to the upper chamber inlet 4311c of the cylinder 43c through a first air pipe 4451c, and the second joint 446c is connected to the lower chamber inlet 4321c of the cylinder 43c through a second air pipe 4461 c.
When the switch plate 449c is incorporated into the second embodiment, the gas valve plate 441c can be used to interface with the switch plate 449c, and then the gas circuit can be conducted by directly aligning the switch plate 449c with the stencil.
It should be noted that the above-mentioned conversion plate 449c may be selectively used according to actual requirements, and the form of the conversion plate 449c may be changed according to actual conditions.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. A hot runner system comprising a pneumatic solenoid valve assembly, a cylinder, a piston and a hot nozzle assembly, said hot nozzle assembly comprising a gate and a gate valve needle for opening/closing said gate, said piston controlling said gate valve needle movement to effect said gate valve needle opening/closing said gate, said pneumatic solenoid valve assembly for controlling in-cylinder piston movement, said pneumatic solenoid valve assembly comprising:
the air valve plate is internally provided with an air passage channel, an air passage inlet, an air passage outlet, a plurality of reversing valve through holes and a plurality of air passage interfaces which are communicated with the air passage channel, wherein the plurality of air passage interfaces comprise a first interface communicated with the upper cavity of the air cylinder and a second interface communicated with the lower cavity of the air cylinder;
the reversing valve is used for selectively conducting a plurality of reversing valve through holes to form a first flow path or a second flow path;
when the first flow direction gas channel and the gas channel are communicated with each other, flowing gas flows from the first interface towards the second interface to enable the piston to move in a first direction, and when the second flow direction gas channel and the gas channel are communicated with each other, flowing gas flows from the second interface towards the first interface to enable the piston to move in a second direction, wherein the first direction is opposite to the second direction;
the gas path outlets comprise a first gas path outlet and a second gas path outlet, the plurality of reversing valve through holes at least comprise a first through hole communicated with the gas path inlet, a second through hole communicated with the first interface, a third through hole communicated with the first gas path outlet, a fourth through hole communicated with the second interface and a fifth through hole communicated with the second gas path outlet, when the reversing valve is communicated with the first flow path, the first through hole is communicated with the second through hole, and the fourth through hole is communicated with the third through hole; when the reversing valve is communicated with the second flow path, the first through hole is communicated with the fourth through hole, and the second through hole is communicated with the fifth through hole;
the air pressure electromagnetic valve assembly further comprises a conversion plate, a first connector and a second connector, wherein a first conversion hole and a second conversion hole are formed in the conversion plate, the first connector is used for conducting the first conversion hole and the upper cavity of the air cylinder, the second connector is used for conducting the second conversion hole and the lower cavity of the air cylinder, when the air valve plate is in butt joint with the conversion plate, the first connector is aligned with the first conversion hole, and the second connector is aligned with the second conversion hole;
the pneumatic electromagnetic valve assembly is matched with the template for use, the template comprises a first template channel communicated with the upper cavity of the air cylinder and a second template channel communicated with the lower cavity of the air cylinder, one end, far away from the upper cavity of the air cylinder, of the first template channel forms a first template interface, one end, far away from the lower cavity of the air cylinder, of the second template channel forms a second template interface, and when the pneumatic valve plate is in butt joint with the template, the first interface is aligned with the first template interface, and the second interface is aligned with the second template interface.
2. The hot runner system according to claim 1, wherein the gas path outlet is connected to the outside and a muffler is provided at the gas path outlet.
3. The hot runner system according to claim 1, wherein the pneumatic solenoid valve assembly further comprises a timing controller for controlling the selector valve to selectively open a plurality of selector valve through-holes.
4. The hot runner system according to claim 1, wherein the pneumatic solenoid valve assembly further comprises a first connector for communicating with the first port and the upper cylinder chamber and a second connector for communicating with the second port and the lower cylinder chamber.
5. The hot runner system according to claim 1, wherein the air valve plate comprises an oppositely disposed upper surface, a lower surface, and a plurality of sides connecting the upper surface and the lower surface, the plurality of reversing valve through holes, the air passage inlet, and the air passage outlet are located at the upper surface, and the plurality of air passage interfaces are located at the sides or the lower surface.
6. The hot runner system according to claim 1, wherein the solenoid valve is a two-position five-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155499.9A CN108215085B (en) | 2016-12-14 | 2016-12-14 | Pneumatic electromagnetic valve assembly and hot runner system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155499.9A CN108215085B (en) | 2016-12-14 | 2016-12-14 | Pneumatic electromagnetic valve assembly and hot runner system with same |
Publications (2)
| Publication Number | Publication Date |
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| CN108215085A CN108215085A (en) | 2018-06-29 |
| CN108215085B true CN108215085B (en) | 2023-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611155499.9A Active CN108215085B (en) | 2016-12-14 | 2016-12-14 | Pneumatic electromagnetic valve assembly and hot runner system with same |
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| CN101580722A (en) * | 2009-06-19 | 2009-11-18 | 武汉钢铁(集团)公司 | Pressure control pneumatic unit sectional cabinet |
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| CN108215085A (en) | 2018-06-29 |
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