CN111889305A - Liquid chamber module of liquid material extrusion device - Google Patents

Liquid chamber module of liquid material extrusion device Download PDF

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Publication number
CN111889305A
CN111889305A CN202010191514.5A CN202010191514A CN111889305A CN 111889305 A CN111889305 A CN 111889305A CN 202010191514 A CN202010191514 A CN 202010191514A CN 111889305 A CN111889305 A CN 111889305A
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CN
China
Prior art keywords
chamber
seat
liquid chamber
liquid
hole
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CN202010191514.5A
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Chinese (zh)
Inventor
何致融
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All Ring Tech Co Ltd
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All Ring Tech Co Ltd
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Publication of CN111889305A publication Critical patent/CN111889305A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/001Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material

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Abstract

The invention provides a liquid chamber module of a liquid material extruding device, which comprises: the heating mechanism is provided with a housing, a heat conduction mold is arranged in the housing, and the heat conduction mold is provided with a first accommodating chamber; the heat conducting mold is provided with a carrying region adjacent to the first accommodating chamber, and the carrying region is provided with a heater; the liquid chamber mechanism is arranged in the first accommodating chamber of the heating mechanism, is provided with an adapter for guiding liquid materials into the liquid chamber mechanism, and is provided with a plunger for pushing the liquid materials in a liquid chamber so that the liquid materials in the liquid chamber are extruded from a valve nozzle; thereby facilitating extrusion of a liquid material having relatively low fluidity.

Description

Liquid chamber module of liquid material extrusion device
Technical Field
The present invention relates to a liquid chamber module, and more particularly, to a liquid chamber module of a liquid extruding apparatus for receiving a liquid material for extrusion.
Background
A common liquid material extruding device usually holds a viscous liquid material in a work piece by one of spraying, spotting and coating, and such a liquid material extruding device is usually provided with a valve seat, in which a piezoelectric actuator is arranged to drive a lever to amplify a displacement amount, so as to indirectly push a plunger for liquid material extrusion, so that the plunger pushes the liquid material in a liquid chamber seat below the valve seat, and the liquid material in the liquid chamber is extruded through a valve nozzle.
Disclosure of Invention
In the prior art, the liquid material in the liquid chamber seat is often different in viscosity due to different processing and coating requirements, and the thick liquid material is often low in fluidity, so that the liquid material is not easy to be extruded out of the valve nozzle by the plunger, and therefore, a part to be improved on the liquid chamber seat is still remained.
Therefore, an object of the present invention is to provide a liquid chamber module of a liquid material extruding apparatus that contributes to extruding a liquid material having low fluidity.
According to the object of the present invention, a liquid chamber module of a liquid material extruding apparatus comprises: the heating mechanism is provided with a housing, a heat conduction mold is arranged in the housing, and the heat conduction mold is provided with a first accommodating chamber; the heat conducting mold is provided with a carrying region adjacent to the first accommodating chamber, and the carrying region is provided with a heater;
the liquid chamber mechanism is arranged in the first accommodating chamber of the heating mechanism, is provided with a joint for guiding liquid materials to enter the liquid chamber mechanism, and is provided with a plunger for pushing the liquid materials in a liquid chamber so as to extrude the liquid materials in the liquid chamber from a valve nozzle.
According to the liquid chamber module of the liquid material extrusion device, the liquid chamber module is composed of the heating mechanism and the liquid chamber mechanism, the liquid chamber mechanism can be easily disassembled and cleaned, the heating mechanism can receive heat source heating, the liquidity of liquid materials in the liquid chamber mechanism is increased, the extrusion of the liquid materials with low liquidity is facilitated, and the heat insulation function can be further increased by the housing outside the heat conduction die.
Drawings
Fig. 1 is a schematic perspective view of a liquid material extruding apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a liquid chamber module according to an embodiment of the present invention.
Fig. 3 is a schematic perspective exploded view of a heating mechanism and a liquid chamber mechanism of a liquid chamber module according to an embodiment of the present invention.
Fig. 4 is a schematic exploded perspective view of a heating mechanism of a liquid chamber module in an embodiment of the present invention.
Fig. 5 is an exploded perspective view of the housing of the heating mechanism of the liquid chamber module in the embodiment of the present invention.
Fig. 6 is a schematic sectional view of a liquid chamber module according to an embodiment of the present invention.
Fig. 7 is a schematic sectional view of a liquid chamber mechanism in the embodiment of the present invention.
Fig. 8 is a schematic sectional view of a liquid chamber module and a valve seat assembly according to an embodiment of the present invention.
Fig. 9 is an external view of another liquid chamber mechanism of the liquid chamber module in the embodiment of the invention.
Fig. 10 is a schematic sectional view of another embodiment of a liquid chamber mechanism of the liquid chamber module according to the embodiment of the present invention.
Fig. 11 is a schematic partial sectional view of a liquid chamber module according to an embodiment of the present invention, which is combined with the valve seat according to another embodiment of a liquid chamber mechanism.
[ notation ] to show
Liquid material extrusion device A1 valve seat
A11 switch A12 fastener
A13 piezoelectric actuator A131 fine-tuning piece
A132 first piezoelectric actuator a133 second piezoelectric actuator
A14 lever of A134 temperature detector
A141 support end A142 support
A143 force resisting end A144 force applying part
A145 slotted hole A146 positioning piece
A15 pushing the top end of A151
A152 rod part A153 elastic part
A16 valve hole A161 fixed part
A1621 chamber of A162 carrier
A1622 Via A17 sidewall
A171 wire groove A172 guide hole
A173 air port A174 temperature switch
Top wall of A175 temperature detector A18
A181 notch A19 bottom wall
A191 pinhole A1911 liquid gel solid
A192 pocket A1921 lead
A193 circuit board A2 liquid chamber module
A211 cover of A21 heating mechanism
A2111 Long side A2112 first groove side
A2113 opening A2114 short side member
A2115 second inter-slot A2116 opening
A2117 hollow-out interval A212 heat conduction mould
A2121 first chamber A2122 fastener
A2123 opening, A2124 third groove
A2125 opening A2126 base
Long side of A2127 and short side of A2128
A2129 Top seat A2130 second chamber
A2131 placing interval A2132 third chamber
A2133 bottom cover A2134 channel
A214 pin A215 terminal
A2151 circuit board A216 hoop cover
A2161 hollow-out interval A217 heater
A2171 wire A218 temperature sensor
A2181 lead A219 heat-conducting glue
A22 liquid chamber mechanism A221 adapter
A2211 transfer passage A222 liquid chamber seat
A2221 chamber A2222 connecting seat
A2223 connecting hole A2224 positioning part
A2225 receiving hole A2226 clearance
A223 pivot seat A2231 ring edge
A2232 sealing piece A2233 positioning seat
A2234 positioning hole A2235 guide groove
A2236 plunger chamber A2237 shaft hole
A2238 collar A2239 opening
A2241 fixed part of A224 valve nozzle seat
A2242 chamber A2243 opening
A2244 valve nozzle A225 liquid chamber
A226 plunger A2261 head
A2262 end of the rod part A2263
A31 wiring terminal of A3 control part
A4 fixed seat A41 gas transmission joint
A42 channel A5 liquid storage cylinder
A51 first fastening mechanism A52 second fastening mechanism
Liquid chamber mechanism for conveying pipe B through A53
B1 liquid chamber seat B11 bearing seat
B12 neck B121 screw hole
B13 Chamber B14 junction
B15 connecting hole B16 accommodating hole
B2 adaptor B21 delivery track
B3 pivot seat B31 flange
B32 pivot part B321 base
B322 footstock B33 lower pivot part
B35 axle hole of B34 plunger chamber
B36 seal B37 shaft seal
B38 opening B39 shaft seal
B4 valve seat B41 suite
B411 external thread B42 chamber
B421 bottom edge B43 opening
Valve nozzle B441 conical surface B44
B5 liquid chamber B6 plunger
B61 head B611 positioning part
B62 rod B63 end
B7 elastic member C valve seat
C1 accommodation space C2 chamber
C3 neck hole C4 sleeve seat
C41 pivot part C42 fastening part
C421 against part C5 piezoelectric actuator
C61 resisting end of C6 lever
C611 pivot groove C62 force application part
C7 elastic member
Detailed Description
Referring to fig. 1, in the embodiment of the present invention, the liquid material extruding apparatus is shown as an example, the liquid material extruding apparatus a is provided with a valve seat a1, a liquid chamber module a2 is disposed below the valve seat a1, a control portion A3 is disposed above the valve seat a1, a control circuit board and related circuits are disposed in the control portion A3, and two connection terminals a31 are disposed above the control portion A3; one side of the valve seat A1 is provided with a fixed seat A4 for fixing the machine station to be positioned properly, the fixed seat A4 is provided with a gas transmission joint A41, cold gas can be transmitted through the fixed seat A4 and guided into the valve seat A1 for cooling; the other side opposite to the fixed seat a4 is provided with a liquid storage cylinder A5, the liquid storage cylinder A5 is arranged on one side of the valve seat a1 by a first buckling mechanism a51 positioned at the upper part and a second buckling mechanism a52 positioned at the lower part, a conveying pipe a53 is arranged below the liquid storage cylinder A5 and connected with the liquid chamber module a2 so as to convey the liquid material in the liquid storage cylinder A5 to the liquid chamber module a2, the valve seat a1 is provided with a switch a11, and the switch a11 can operate a fastener a12 positioned at the front side and the rear side of the valve seat a1 to buckle or release the liquid chamber module a2, so that the liquid chamber module a2 can be combined with the valve seat a1 or can be completely separated from the valve seat a 1.
Referring to fig. 2-3, the liquid chamber module a2 includes a heating mechanism a21 and a liquid chamber mechanism a 22; referring to fig. 3, the heating mechanism a21 has a casing a211 in a rectangular frame shape, a heat conducting mold a212 is disposed in the casing a211, the casing a211 is made of a material that is not easy to conduct heat, such as engineering plastic, and the heat conducting mold a212 is made of a material that is easy to conduct heat, such as metal; a first slot space a2112 is correspondingly arranged on each of the front and rear long side pieces a2111 of the housing a211, and an opening a2113 is respectively arranged above each first slot space a 2112; one of the two short side pieces A2114 on the left and right of the housing A211 is provided with a second slot A2115, and an opening A2116 is arranged above the second slot A2115; the heat conducting mold a212 is provided with a first accommodating chamber a2121 in a shape of a round pit, the outer sides of the heat conducting mold a212 on the front side and the rear side of the first accommodating chamber a2121 are respectively provided with a convex buckle body a2122, and the buckle body a2122 is just positioned in an interval hollowed out by the first inter-groove a2112 of the housing a 211; an opening A2123 is formed above the first chamber A2121, a third chamber A2124 is arranged at one side, an opening A2125 is formed above the third chamber A2124, and the third chamber A2124 corresponds to and is communicated with a second chamber A2114 of the housing A211; a plurality of pins a214 spaced apart from each other are disposed on the other side of the heat conducting mold a212 opposite to the first accommodating chamber a2121, and a plurality of terminals a215 are disposed on the heat conducting mold a212 between the pins a214 and the first accommodating chamber a 2121; a hoop cover A216 is disposed around the upper periphery of the first chamber A2121, the hoop cover A216 is made of a material difficult to conduct heat, a circular hollow space A2161 is disposed at the center thereof, and the hollow space A is disposed at the bottom of the first chamber
The liquid chamber mechanism A22 is provided with an adapter A221 for leading liquid material into the liquid chamber mechanism A22; the liquid chamber mechanism a22 is not fixed by any screws and is directly accommodated in the first chamber a2121 of the heating mechanism a21, and the adapter a221 of the liquid chamber mechanism a22 is disposed in and protrudes out of the third chamber a2124 of the first chamber a2121 and the second chamber a2115 of the housing a211 through the opening a2125 above the third chamber a2124 of the first chamber a2121 and the opening a2116 above the second chamber a2115 of the housing a 211.
Referring to fig. 4 and 5, the casing a211 of the heating mechanism a21 is formed by two long side members a2111 forming long sides and two short side members a2114 forming short sides, which together form a rectangular frame, and a rectangular hollow space a2117 is provided below the frame of the casing a211, and the hollow space a2117 can be embedded with a base a2126 protruding below the heat conducting mold a 212; the heat conducting module A212 is a rectangular cube, and has two long sides A2127 forming long sides and two short sides A2128 forming short sides, two buckle bodies A2122 are respectively arranged on the two long sides A2127 corresponding to each other in front and back, and the third slot A2124 is arranged on one side of the two short sides A2128; the long side members a2111 or the short side members a2114 of the casing a211 are not fixed to each other, each long side member a2111 or the short side member a2114 is directly screwed and fixed to the corresponding side of the heat conducting mold a212, and each long side member a2111 or the short side member a2114 can be independently detached and separated from the corresponding side of the heat conducting mold a 212; four corners above the heat conducting mold a212 are respectively provided with a convex top seat a2129, the side edge of the heat conducting mold a212 between the top seats a2129 forms a hollow-out section to make the top seats a2129 spaced apart, and the height of each top seat a2129 is approximately flush with the peripheral height of the housing a 211.
Referring to fig. 4 and 6, a recessed second chamber a2130 is disposed above the heat conducting mold a212 between the pin a214 and the first chamber a2121 of the heat conducting mold a212, a carrying area a2131 adjacent to the first chamber a2121 is disposed between the second chamber a2130 and the first chamber a2121, a third chamber a2132 is formed by recessing the base a2126 protruding from the lower portion of the heat conducting mold a212, and the bottom of the third chamber a2132 is covered by a bottom cover a 2133; a channel A2134 is arranged between the second accommodating chamber A2130 and the third accommodating chamber A2132; the second chamber a2130 is provided with a circuit board a2151 for the loading and connection of the terminal a215, the loading section a2131 is provided with a heater a217, the heater a217 heats the liquid chamber mechanism a22 in a manner of separating the heat conducting mold a212, the lead a2171 of the heater a217 is connected with the circuit board a2151 through the second chamber a2130, the third chamber a2132 is provided with a temperature sensor a218, and the lead a2181 of the temperature sensor a218 is connected with the circuit board a2151 through the channel a2134 to the second chamber a 2130; the liquid solidified heat conducting glue A219 is filled under the circuit board A2151 of the second chamber A2130 to seal the leads A2171 and A2181.
Referring to fig. 7, the liquid chamber mechanism a22 is an independently detachable component separated from the valve seat a1 and liquid chamber module a2, and the liquid chamber mechanism a22 is provided with:
a liquid chamber seat A222, a cavity A2221 in the shape of a round pit is arranged in the liquid chamber seat A222, a connecting seat A2222 horizontally protrudes and extends from the periphery of the upper end of the liquid chamber seat A222 to one side in the transverse direction, a connecting hole A2223 with internal threads is arranged in the connecting seat A2222 and is communicated with the cavity A2221, the connecting seat A2222 is screwed with an adapter A221 which is an independent component and is provided with external threads, and a hole-shaped conveying channel A2211 is arranged in the adapter A221 and is communicated with the connecting hole A2223 and the cavity A2221; a convex positioning part A2224 is arranged above the connecting seat A2222; the bottom of the chamber A2221 is provided with a section of accommodating hole A2225 with a smaller diameter than the chamber A2221;
a pivot seat a223 disposed in the cavity a2221 of the liquid chamber seat a222, a flange a2231 protruding horizontally outward is disposed above the pivot seat a223, the flange a2231 seals a gap between the pivot seat a223 and the cavity a2221 by means of a sealing member a2232, the flange a2231 protrudes horizontally and laterally to one side to form a positioning seat a2233, and a positioning hole a2234 is opened on the positioning seat a 2233; the cylindrical outer circumference of the pivot seat A223 is concavely provided with a Z-axial guide groove A2235, liquid material input from the conveying channel A2211 of the adapter A221 can enter the guide groove A2235 and the cavity A2221, the positioning hole A2233 is just sleeved and embedded in the convex positioning part A2224 on the connecting seat A2222 of the liquid chamber seat A222, so that the guide groove A2235 of the pivot seat A223 is just correspondingly positioned on the same side of the connecting seat A2222 and the adapter A221, and the conveying channel A2211 is communicated with the connecting hole A2223 and the guide groove A2235; a clearance A2226 is kept between the bottom of the pivot seat A223 and the bottom of the cavity A2221, liquid enters the clearance A2226 through the guide groove A2235, the accommodating hole A2225 on the liquid chamber seat A222 is communicated with the clearance A2226 and can allow the liquid to flow between the accommodating hole A2225 and the clearance A2226; a plunger containing chamber A2236 is arranged in the pivot seat A223, a shaft hole A2237 communicated with the clearance A2226 and the containing hole A2225 is arranged below the plunger containing chamber A2236, and a shaft ring A2238 is arranged below the shaft hole A2237; an opening A2239 is formed above the plunger chamber A2236;
a valve nozzle seat A224, the valve nozzle seat A224 is fixed at the lower end of the liquid chamber seat A222 by a fixing piece A2241, the valve nozzle seat A224 is provided with a concave accommodating chamber A2242, an opening A2243 is formed above the accommodating chamber A2242 and is butted and communicated with the accommodating hole A2225 of the liquid chamber seat A222, a valve nozzle A2244 in a thin hole shape is arranged below the accommodating chamber A2242, the upper end of the valve nozzle A2244 is communicated with the accommodating chamber A2242, and the lower end is communicated with the outside of the valve nozzle seat A224; the clearance A2226, the accommodating hole A2225 and the accommodating chamber A2242 are communicated with each other to form a liquid chamber A225;
a plunger a226, which is disposed in the plunger housing a2236 of the pivot seat a223, and includes a head portion a2261 with a larger rod diameter and a shorter rod length above the plunger, and a rod portion a2262 with a smaller diameter and a longer rod length below the head portion a2261, wherein the rod portion a2262 extends downward through the shaft hole a2237, and the lower end of the rod portion a2262 is disposed in the liquid chamber a225, and the radial direction of the rod portion a2262 is not in contact with the peripheral side wall surface of the liquid chamber a 225; the rod portion a2262 of the plunger a226 in the plunger chamber a2236 is sleeved with an elastic member a227 formed by a spring, and the elastic member a227 provides a restoring driving force for the first plunger a226 when compressed; when a force is applied to the plunger a226, the circular arc-shaped end portion a2263 at the bottom of the rod portion a2262 pushes the liquid material in the liquid chamber a225 against the valve nozzle a2244, so that the liquid material in the liquid chamber a225 is pushed out from the valve nozzle a 2244.
Referring to fig. 1 and 8, a piezoelectric actuator a13 finely adjusted by a fine adjustment piece a131 is disposed in the valve seat A1 of the liquid material extruding apparatus a, and the piezoelectric actuator a13 includes a first piezoelectric actuator a132 with a long length located below and a second piezoelectric actuator a133 with a short length located above in series; the piezoelectric actuator A13 is provided with a temperature detector A134 composed of a thermistor for detecting the temperature of the piezoelectric actuator A13; a lever A14 is arranged below the piezoelectric actuator A13, a supporting end A141 of the lever A14 is arranged on a supporting piece A142 below, the other force resisting end A143 is arranged at the upper end of a pressing and pushing piece A15, a force application part A144 of the lever A14 positioned between the supporting end A141 and the force resisting end A143 is pressed and applied by the piezoelectric actuator A13, a slotted hole A145 is arranged on the lever A14 between the force application part A144 and the force resisting end A143, and the slotted hole A145 is just used for a positioning piece A146 protruding from the inner bottom side of the valve seat A1 to pivot and embed, so that the left-right swing of the horizontal plane of the lever A14 is limited; the lower end of the valve seat A1 is provided with a valve hole A16, a cylindrical carrier seat A162 is fixedly arranged in the valve hole A16 through a fixing piece A161, a containing chamber A1621 is arranged in the carrier seat A162, and a through hole A1622 is arranged below the containing chamber A1621; the upper end of the pressure pushing piece A15 is provided with a top end part A151 with wider radial shaft diameter, the lower end is provided with a rod part A152 with narrower radial shaft diameter, the lower end of the rod part A152 passes through the through hole A1622, the part of the rod part A152 in the accommodating chamber A1621 is sleeved with an elastic piece A153 formed by a spring on the outer diameter, so that the top end part A151 keeps a driving force which upwards pushes against the resistance end A143 of the lever A14, and the necessary section of slight upward and downward movement of the rod part A152 is slightly convex to the lower part of the rod part A152 and is different from the lower part of the through hole A1622; the valve seat A1 has a rectangular cross section, its peripheral side includes two long sides parallel to each other and two short sides parallel to each other, the piezoelectric actuator A13 leans against a sidewall A17 of a short side in the valve seat A1, the fixed seat A4 locates outside the sidewall A17 of the valve seat A1 near the short side of the piezoelectric actuator A13, the valve seat A1 has a slot A171 recessed from outside to inside in the Z-axis direction near the outside of the sidewall A17, the sidewall A17 has a guide hole A172 communicating with the upper end of the slot A171 on the outside and communicating with the inside of the valve seat A1 on the inside near the upper end, the guide hole A172 locates above the fixed seat A4, a roof A18 of the valve seat A1 near the guide hole A172 has a notch A181 communicating with the inside and outside of the valve seat A1; a bottom wall a19 at the lower end of the valve seat A1 is provided with two pin holes a191 and a chamber a192 with an open lower end, a circuit board a193 is arranged in the chamber a192, the circuit board a193 is connected with a lead a1921 which extends to the lead a172 through the slot a171 and penetrates through the lead a172 inwards to enter the valve seat A1, and then penetrates through the notch a181 upwards to extend out of the upper end of the valve seat A1, the part of the circuit board a193 connected with the lead a1921 is located in the chamber a192, and the chamber a192 is filled with liquid gel fixing material a1911, such as silicone glue; the opening concavely arranged outside the wire casing A171 is covered and closed by the fixed seat A4, the fixed seat A4 is provided with a channel A42 to connect the gas transmission end A41 with a gas port A173 of the side wall A17 at the lower end of the valve seat A1, the gas port A173 is arranged at one side of the valve seat A1 corresponding to the first piezoelectric actuator A132, cold gas input by the gas transmission end A41 enters the valve seat A1 through the channel A42 and the gas port A173 to dissipate and reduce the temperature of the heat generated by the operation of the piezoelectric actuator A13, and the hot gas in the valve seat A1 is discharged through the guide hole A172, the side wall A17 of the valve seat A1 outside the guide hole A172 is provided with a temperature switch A174 which can detect the temperature of the whole valve seat A1 caused by overheating or accumulation of the piezoelectric actuator A13 due to the runaway fault of the heater A217; a temperature detector A175 composed of a thermistor is arranged on the inner side wall surface of the side wall A17 between the side wall A17 of the valve seat A1 and the piezoelectric actuator A13 to detect the temperature in the valve seat A1.
Referring to fig. 1, 4 and 8, the liquid chamber module A2 is configured such that the upper end of each of the top seats a2129 on the heat conducting mold a212 abuts against the bottom wall a19 of the lower end of the valve seat A1, the pin a214 is inserted into the pin hole a191 of the bottom wall a19 of the lower end of the valve seat A1 for positioning, and the fasteners a12 on the front and rear sides of the valve seat A1 are configured to fasten the protruding fastener a2122 of the heat conducting mold a212 in the liquid chamber module A2 by operating the switch a11 on the valve seat A1, so as to complete the fastening of the liquid chamber module A2, the upper end surface of the head a2261 of the plunger a226 thereon is configured to abut against the rod a152 of the pressure pushing member a15 on the valve seat A1, the lower end of the rod a15 is slightly protruded from the lower side of the rod a1622, and is configured to abut against each other, and simultaneously the terminal a215 on the terminal A2 in the liquid chamber a 19248 a193 of the valve seat a may heat the circuit board 1 a217, and the circuit board 2 a217 a may heat the circuit board via the wire lead wire of the heater A1 a217 a, The temperature sensor a218 supplies power and transmits temperature information sensed by the temperature sensor a218 back to the control section a 3.
The liquid chamber mechanism a22 may be replaced by the embodiment of the liquid chamber mechanism B shown in fig. 9 and 10 (the following mechanisms are the same as the previous embodiments and the same reference numerals are used), and the liquid chamber mechanism B is provided with:
a liquid chamber seat B1, the liquid chamber seat B1 is integrally provided with a bearing part B11 which is relatively positioned above and has larger radial diameter width and a neck part B12 which is relatively positioned below and has smaller radial diameter width, and the appearance of the bearing part B11 and the neck part B12 is approximately in a circular shaft shape; a cavity B13 in a round pit shape is arranged in the liquid chamber seat B1, the cavity B13 is arranged above a connecting hole B15 which is transversely and horizontally arranged in a connecting part B14 which is convexly arranged on one side of the bearing part B11 of the liquid chamber seat B1, a thread is arranged in the connecting hole B15 and is screwed with an adapter B2 provided with an external thread, the adapter B2 is an independent component and is internally provided with a conveying channel B21, and the connecting hole B15 is communicated with the conveying channel B21 and can guide liquid materials to enter the liquid chamber mechanism B; the bottom of the chamber B13 is provided with a section of accommodating hole B16 with a smaller aperture than the chamber B13, and the connecting hole B15 is arranged at one side of the accommodating hole B16 and communicated with the accommodating hole B16; a screw hole B121 with a larger diameter than the receiving hole B16 is concavely arranged at the bottom end of the receiving hole B16 at the lower end of the neck part B12;
a pivot seat B3, wherein the pivot seat B3 is provided with a flange B31 which protrudes horizontally and annularly outwards, and the pivot seat B3 comprises an upper pivot part B32 positioned above the flange B31 and a lower pivot part B33 positioned below the flange B31; a plunger containing chamber B34 is arranged in the upper pivot part B32, a shaft hole B35 communicated with the accommodating hole B16 in the liquid chamber seat B1 is arranged below the plunger containing chamber B34, a base B321 which is relatively positioned below and has a larger radial diameter width and a top seat B322 which is relatively positioned above and has a smaller radial diameter width are integrally arranged on the upper pivot part B32, the base B321 and the top seat B322 are both in a circular shaft shape, and the radial diameter width of the base B321 is smaller than that of the flange B31; the appearance of the lower pivot part B33 is in a shape of a circular shaft and is arranged in the chamber B13 of the liquid chamber seat B1, a sealing element B36 at the position close to the flange B31 on the outer circumferential surface is used for sealing the clearance between the outer circumference of the lower pivot part B33 and the inner circumference of the chamber B13, and the lower end part of the lower pivot part B33 is provided with a shaft seal B37; an opening B38 is formed above the plunger accommodating chamber B34, and a shaft seal B39 is arranged on the periphery of the opening B38;
a valve seat B4, the valve seat B4 is made of tungsten steel and is sleeved from bottom to top by a sleeve B41, and is fixedly screwed in the screw hole B121 at the lower end of the liquid chamber seat B1 by virtue of an external thread B411 at the outer edge of the sleeve B41, the valve seat B4 is provided with a concave chamber B42, an opening B43 above the chamber B42 is butted and communicated with the accommodating hole B16 of the liquid chamber seat B1, an arc concave bottom edge B421 is formed below the chamber B42, a thin-hole-shaped valve seat B44 is arranged below the bottom edge B421, the upper end of the valve seat B44 is communicated with the chamber B42, and the lower end is communicated with the outside of the valve seat B4; the accommodating hole B16 and the accommodating chamber B42 are communicated and form a liquid chamber B5 for accommodating liquid materials together; a tapered conical surface B441 with a smaller lower circular diameter and a larger upper circular diameter is formed outside the valve nozzle B44 of the valve nozzle seat B4, and no member covers or shields the radial space on the outer periphery of the conical surface B441 in the height range of the conical surface B441;
a plunger B6, disposed in the plunger chamber B34 of the pivot base B3, including a head B61 with a larger rod diameter and a shorter rod length above the plunger, and a rod B62 with a smaller rod diameter and a longer rod length below the head B61, wherein a positioning portion B611 is disposed at the upper end of the head B61 in a protruding manner, the rod B62 extends downward through the shaft hole B35 and the shaft seal B37, and the lower end of the rod B62 is disposed in the liquid chamber B5 formed by the accommodation hole B16 and the chamber B42; an elastic piece B7 formed by a spring is sleeved outside the rod part B62 of the plunger B6 in the plunger accommodating chamber B34, and the elastic piece B7 provides a restoring driving force for the plunger B6 when being compressed; when the plunger B6 is driven, the plunger B6 abuts against the arc-concave bottom edge B421 surface below the chamber B42 of the valve seat B4 by an arc-shaped end B63 at the bottom of the rod B62, so that the liquid material in the liquid chamber B5 is extruded from the valve nozzle B44, but the rod B62 of the plunger B6 is not in contact with the circumferential side wall surface of the liquid chamber B5 in the radial direction.
Referring to fig. 11, the liquid chamber mechanism B is bounded by the flange B31, the lower pivot portion B33 and the liquid chamber seat B1 below the flange B31 are located in the first accommodating chamber a2121 on the heat conducting die a212 of the heating mechanism a21 of the liquid chamber module A2, the base B321 of the upper pivot portion B32 above the flange B31 is located in an accommodating section C1 at the bottom of the valve seat C, the radial diameter width of the flange B31 is greater than that of the accommodating section C1, and the flange B32 abuts against the bottom of the valve seat C below the accommodating section C1, so that the upper pivot portion B32 cannot move upward any more; meanwhile, the radial diameter width of the flange B31 is greater than that of the first accommodating chamber a2121, and the flange abuts against the upper end edge of the liquid chamber seat B1 above the first accommodating chamber a2121, so that the lower pivot portion B33 cannot move downwards any more; a neck hole C3 communicated with a chamber C2 inside the valve seat C is arranged above the containing section C1, and the top seat B322 of the upper pivot part B32 is pivoted through the neck hole C3; a sleeve seat C4 is arranged in the neck hole C3, the sleeve seat C4 comprises a sleeve pivot part C41 which is pivoted outside the upper pivot part B32 and inside the inner diameter periphery of the neck hole C3, and a fixing and abutting part C42 which is positioned above and outside the neck hole C3, the fixing and abutting part C42 is eccentrically protruded to an abutting part C421 towards one side outside the upper pivot part B32, an elastic piece C7 formed by a spring is arranged between the abutting part C421 and a lever C6 driven by a piezoelectric actuator C5, a hollow hole-shaped pivot groove C611 is arranged at a position of a positioning part B611 convexly arranged at the upper end of the head B61 of the plunger B6 at a force resisting end 61 of the lever C6 so as to limit the left-right swinging of the lever C6; the elastic piece C7 is positioned between the resisting end C61 of the lever C6 and the force applying part C62; the liquid chamber mechanism B is not screwed to the valve seat C and the liquid chamber module a2 by screws or the like, so that the liquid chamber mechanism B is a mold assembly that can be independently disassembled and assembled from and to the valve seat C and the liquid chamber module a2, and when the liquid chamber module a2 is separated from the valve seat C (the switch a11 is operated as shown in fig. 1), the sealing member B36 seals the clearance between the outer circumference of the lower pivot portion B33 and the inner circumference of the chamber B13 to keep the proper tightness between the pivot seat B3 and the liquid chamber seat B1 to be integrated, so that when the liquid chamber module a2 is disassembled, the entire liquid chamber mechanism B will be subsequently separated from the valve seat C and the heating mechanism a 21.
In the liquid chamber module of the liquid material extruding device according to the embodiment of the invention, since the liquid chamber module A2 is composed of the heating mechanism a21 and the liquid chamber mechanism a22, the liquid chamber mechanism a22 can be easily disassembled and cleaned, and can be heated by the heat source in the heating mechanism a21, so that the fluidity of the liquid material in the liquid chamber mechanism a22 is increased, the liquid material with lower fluidity can be extruded, and the heat insulation function of the cover shell a211 outside the heat conducting die a212 can be further increased.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all simple equivalent changes and modifications made according to the claims and the description of the present invention are also included in the scope of the present invention.

Claims (19)

1. A liquid chamber module of a liquid extrusion device, comprising:
the heating mechanism is provided with a housing, a heat conduction mold is arranged in the housing, and the heat conduction mold is provided with a first accommodating chamber; the heat conducting mold is provided with a carrying region adjacent to the first accommodating chamber, and the carrying region is provided with a heater;
the liquid chamber mechanism is arranged in the first accommodating chamber of the heating mechanism, is provided with a joint for guiding liquid materials to enter the liquid chamber mechanism, and is provided with a plunger for pushing the liquid materials in a liquid chamber so as to extrude the liquid materials in the liquid chamber from a valve nozzle.
2. The liquid chamber module of claim 1, wherein the front and rear long side members of the housing are respectively provided with a first slot, and an opening is respectively formed above each slot.
3. The liquid chamber module of claim 1, wherein one of the left and right short side members of the housing has a second slot, and an opening is formed above the second slot.
4. The liquid chamber module of claim 1, wherein the first chamber has an opening formed thereon, a third chamber is formed on one side of the first chamber, an opening is formed above the third chamber, and the third chamber corresponds to and communicates with the second chamber of the housing.
5. The liquid chamber module of claim 1, wherein the heat conducting mold comprises a button body disposed at the front side and the rear side of the first chamber, and the button body is located in the space defined between the first slots of the housing.
6. The liquid chamber module of claim 1, wherein a pin is disposed above the heat conducting mold and spaced apart from the first chamber.
7. The liquid chamber module of claim 1, wherein a plurality of terminals are disposed above the heat conducting mold.
8. The liquid chamber module of claim 1, wherein the first chamber has a hoop cover formed on the upper periphery thereof, the hoop cover is made of a material that is not easily heat-conductive, and a hollow area is formed in the center thereof, and the hollow area is used for the liquid chamber mechanism to pass through.
9. The liquid chamber module of claim 1, wherein the adaptor is disposed in and protrudes out of the third compartment of the first chamber and the second compartment of the housing through an opening above the third compartment of the first chamber and an opening above the second compartment of the housing.
10. The liquid chamber module of claim 1, wherein the housing is formed by two long side members forming long sides and two short side members forming short sides, and a hollow space is formed under the housing for a base protruding from the bottom of the heat conducting mold to be inserted therein.
11. The liquid chamber module of claim 10, wherein each of the long side members or the short side members of the housing is not fixed to each other, each of the long side members or the short side members is directly screwed to the corresponding side of the heat transfer die, and each of the long side members or the short side members is independently detachable from the corresponding side of the heat transfer die.
12. A liquid chamber module for a liquid material extruding apparatus as claimed in claim 1, wherein said heat conducting die has a substantially rectangular cubic shape and has two long sides constituting long sides and two short sides constituting short sides, two buttons are provided on the two long sides respectively corresponding to the front and rear sides, and a third groove is provided between the two short sides.
13. The liquid chamber module of claim 1, wherein four corners of the heat conducting mold are respectively provided with a top seat, the side edges of the heat conducting mold between the top seats are hollowed out to form a space between the top seats, and the height of each top seat is approximately equal to the height of the periphery of the housing.
14. The liquid chamber module of claim 1, wherein the heat conducting mold has a second chamber, the second chamber and the first chamber have a loading space adjacent to the first chamber, the second chamber has a circuit board for loading and connecting a terminal, and the wire of the heater is connected to the circuit board through the second chamber.
15. The liquid chamber module of claim 1, wherein the heat-conducting mold forms a third chamber, and a channel is disposed between the second chamber and the third chamber; the third chamber is provided with a temperature sensor, and a lead of the temperature sensor is connected with the circuit board through the channel to the second chamber.
16. The liquid chamber module of claim 1, wherein the lower portion of the circuit board of the second chamber is filled with a liquid solidified thermal conductive adhesive to seal the lead and the lead.
17. A liquid chamber module of a liquid material extruding apparatus as claimed in claim 1, wherein the liquid chamber mechanism is provided with:
a liquid chamber seat, a cavity is arranged in the liquid chamber seat, the cavity is provided with a connecting hole which is screwed with the adaptor and communicated with the inside of the adaptor, and the bottom of the cavity is provided with a section of accommodating hole with a smaller aperture than the cavity;
a pivot seat arranged in the cavity of the liquid chamber seat, and a ring edge which is horizontally and convexly arranged outwards is arranged above the pivot seat; a plunger containing chamber is arranged in the pivot seat, and a shaft hole communicated with the clearance and the containing hole is arranged below the plunger containing chamber; an opening is formed above the plunger containing chamber;
a valve nozzle seat, the valve nozzle seat is fixedly arranged at the lower end of the liquid chamber seat by a fixing piece, the valve nozzle seat is provided with a concave accommodating chamber, an opening is formed above the accommodating chamber and is butted and communicated with the accommodating hole of the liquid chamber seat, a valve nozzle with a thin hole shape is arranged below the accommodating chamber, the upper end of the valve nozzle is communicated with the accommodating chamber, and the lower end of the valve nozzle is communicated with the outside of the valve nozzle seat; the clearance, the accommodating hole and the accommodating chamber are communicated to form a liquid chamber.
18. A liquid chamber module of a liquid material extruding apparatus according to claim 1,
the liquid material extrusion device is provided with a valve seat, the liquid chamber module is arranged below the valve seat, and a piezoelectric actuator is arranged in the valve seat; a lever is arranged below the piezoelectric actuator, the lower part of one supporting end of the lever is arranged on a supporting piece, and the other resisting end of the lever is arranged at the upper end of a pressing and pushing piece; the lower end of the valve seat is provided with a valve hole, a load seat is fixedly arranged in the valve hole by a fixing piece, a containing chamber is arranged in the load seat, and a through hole is arranged below the containing chamber; the upper end of the pressure pushing piece is provided with a top end part, the lower end of the pressure pushing piece is provided with a rod part, the lower end of the rod part penetrates out of the through hole, and the part of the rod part, which is positioned in the accommodating chamber, is sleeved with an elastic piece on the outer diameter, so that the top end part keeps a driving force which upwards supports against the resistance end of the lever, and the necessary section difference of the small section of upward and downward micro motion which is slightly convex below the rod part is positioned out of the through hole.
19. A liquid chamber module of a liquid material extruding apparatus according to claim 1,
this liquid chamber mechanism is provided with:
a liquid chamber seat, a cavity is arranged in the liquid chamber seat, the cavity is arranged above a connecting hole, the connecting hole is screwed with the adaptor and is communicated with the inside of the adaptor, the bottom of the cavity is provided with a section of accommodating hole with a smaller aperture than the cavity, and the connecting hole is arranged at one side of the accommodating hole and is communicated with the accommodating hole;
a pivot seat, which is provided with a flange and comprises an upper pivot part positioned above the flange and a lower pivot part positioned below the flange; the upper pivot part is internally provided with a plunger containing chamber, a shaft hole communicated with the containing hole in the liquid chamber seat is arranged below the plunger containing chamber, and the upper pivot part comprises a base which is relatively positioned below and has larger radial diameter width and a top seat which is relatively positioned above and has smaller radial diameter width; the lower pivot part is arranged in the cavity of the liquid chamber seat, the clearance between the lower pivot part and the cavity is sealed by a sealing piece, and a shaft seal is arranged below the lower pivot part; an opening is formed above the plunger chamber, and a shaft seal is arranged on the periphery of the opening;
a valve nozzle seat, the valve nozzle seat is fixedly arranged at the lower end of the liquid chamber seat by a fixing piece, the valve nozzle seat is provided with a containing chamber, an opening is formed above the containing chamber and is butted and communicated with the containing hole of the liquid chamber seat, a valve nozzle with a thin hole is arranged below the containing chamber, the upper end of the valve nozzle is communicated with the containing chamber, and the lower end of the valve nozzle is communicated with the outside of the valve nozzle seat; the accommodating hole and the accommodating chamber are communicated and form a liquid chamber together;
the plunger is arranged in the plunger accommodating chamber in the pivot seat and comprises a head part and a rod part, wherein the head part is positioned above the head part and has a larger rod diameter, the rod part is positioned below the head part and has a smaller rod diameter, the upper end of the head part is convexly provided with a positioning part, the rod part extends downwards through the shaft hole, and the lower end of the rod part is positioned in the liquid chamber formed by the accommodating hole and the accommodating chamber; an elastic piece is sleeved outside the rod part of the plunger in the plunger accommodating chamber and provides a restoring driving force for the plunger when being compressed; the plunger pushes the liquid material in the liquid chamber by the rod part so that the liquid material in the liquid chamber is extruded from the valve nozzle.
CN202010191514.5A 2019-05-06 2020-03-18 Liquid chamber module of liquid material extrusion device Pending CN111889305A (en)

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TWI775477B (en) * 2021-06-07 2022-08-21 萬潤科技股份有限公司 Liquid chamber mechanism and liquid material extrusion device
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