CN115502035B - Liquid chamber mechanism and liquid material extrusion device - Google Patents
Liquid chamber mechanism and liquid material extrusion device Download PDFInfo
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- CN115502035B CN115502035B CN202210171409.4A CN202210171409A CN115502035B CN 115502035 B CN115502035 B CN 115502035B CN 202210171409 A CN202210171409 A CN 202210171409A CN 115502035 B CN115502035 B CN 115502035B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus 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
- B05C5/0225—Apparatus 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/001—Apparatus 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Coating Apparatus (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
The invention provides a liquid chamber mechanism and a liquid material extrusion device; the liquid chamber mechanism comprises: a liquid chamber seat and a pivot seat, wherein the liquid chamber seat is provided with an embedding nest for embedding the pivot seat; the pivot seat is provided with a bearing part with larger radial diameter and an embedding part with smaller radial diameter, wherein the bearing part is positioned above the pivot seat; the pivot seat is used for a plunger to be pivoted in, and a rod part below the plunger can extend into the liquid chamber; the embedded part is provided with an inclined guide surface at one side facing to a liquid inlet hole, and the inclined guide surface is inclined downwards from one side of the embedded part towards a direction far away from the liquid inlet hole, so that a liquid inlet area with a narrow upper part and a wide lower part is formed above the liquid chamber; therefore, the liquid material flows smoothly, and the solidification of the liquid material is reduced.
Description
Technical Field
The present invention relates to a liquid chamber mechanism and a liquid material extruding device, and more particularly, to a liquid chamber mechanism and a liquid material extruding device for accommodating and extruding viscous liquid materials.
Background
A general liquid material extrusion device is used for retaining a viscous liquid material on a work piece in one of spraying, dotting and coating modes; the patent No. I716866 discloses a liquid chamber module of a liquid material extruding device, which comprises: a valve seat and a liquid chamber module arranged below the valve seat; a piezoelectric actuator and a lever arranged below the piezoelectric actuator are arranged in the valve seat, and the lever is pressed and applied by the piezoelectric actuator; the liquid chamber module is provided with a liquid chamber mechanism which is provided with an adapter for a liquid storage cylinder to guide liquid materials into a liquid chamber; the liquid chamber mechanism is provided with a plunger, one end of the plunger is pressed and applied by the lever, and the other end of the plunger extends into the liquid chamber; when the liquid material extrusion operation is performed, the piezoelectric actuator drives the lever to drive the plunger to move up and down, so that the liquid material in the liquid chamber is extruded by a valve nozzle.
Referring to fig. 11, when the liquid material enters a liquid chamber A2' formed by a clearance a21', a receiving hole a22' and a receiving chamber a23', the liquid material flows into the liquid chamber A1' through a guide channel A1', and the liquid material is easily accumulated in the guide channel A1' and gradually solidified due to the long and narrow grooves with equal widths from the beginning to the end of the guide channel A1', when the viscosity of the liquid material is higher, the flowing speed of the liquid material in the guide channel A1' is relatively slow; after the liquid material flows out of the guide channel A1', the liquid material also needs to flow through the clearance a21', the accommodating hole a22' and the accommodating chamber a23' in sequence, if the liquid chamber A2' is divided into a first liquid area a24' close to the guide channel A1' and a second liquid area a25' far from the guide channel A1' by taking the plunger A3' as a boundary, the flowing speed of the liquid material in the second liquid area a25' is slower than that in the first liquid area a24', so that the liquid material is easy to accumulate in the second liquid area a25' and is gradually solidified; whether the liquid material solidifies in the guide channel A1 'or the second liquid area a25', the liquid material eventually causes inconvenience in disassembling and cleaning the liquid chamber mechanism.
Disclosure of Invention
The invention aims to provide a liquid chamber mechanism capable of reducing solidification of liquid materials.
Another object of the present invention is to provide a liquid material extruding apparatus using the liquid chamber mechanism.
A liquid chamber mechanism according to the object of the present invention comprises: a liquid chamber seat and a pivot seat, wherein the liquid chamber seat is provided with an embedding nest for embedding the pivot seat; the pivot seat is provided with a bearing part with larger radial diameter and an embedding part with smaller radial diameter, wherein the bearing part is positioned above the pivot seat; the pivot seat is used for a plunger to be pivoted in, and a rod part below the plunger can extend into the liquid chamber; the embedded part is provided with an inclined guide surface at one side facing to a liquid inlet hole, and the inclined guide surface is inclined downwards from one side of the embedded part towards a direction away from the liquid inlet hole, so that a liquid inlet area with a narrow upper part and a wide lower part is formed above the liquid chamber.
A liquid material extrusion apparatus according to another object of the present invention includes: a liquid chamber module provided with the liquid chamber mechanism and a heating mechanism; the liquid chamber mechanism is heated by the heating mechanism; the liquid chamber module is arranged below an actuating module, and one side of the actuating module is provided with a liquid supply module which can convey liquid materials to the liquid chamber module.
According to the liquid chamber mechanism and the liquid material extruding device provided by the embodiment of the invention, when the liquid material enters the liquid chamber from the liquid inlet hole, the liquid material can be guided and flows through the liquid inlet area at a higher flow speed, so that the liquid material flows smoothly, and the solidification of the liquid material is reduced.
Drawings
Fig. 1 is a schematic perspective view of a liquid material extrusion device according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the liquid crystal module according to the embodiment of the invention, which is divided into a liquid chamber mechanism and a heating mechanism.
Fig. 3 is a schematic diagram of the liquid chamber mechanism in an embodiment of the invention, which is broken down into a liquid chamber seat and a pivot seat.
FIG. 4 is a schematic cross-sectional view of a liquid chamber mechanism in an embodiment of the invention.
FIG. 5 is a schematic partial cross-sectional view of a liquid chamber mechanism in accordance with an embodiment of the invention.
FIG. 6 is a schematic partial cross-sectional view of a liquid material extrusion apparatus according to an embodiment of the present invention.
FIG. 7 is a schematic cross-sectional view of a liquid chamber mechanism in accordance with another embodiment of the invention.
FIG. 8 is a schematic cross-sectional view of a liquid chamber mechanism in accordance with yet another embodiment of the invention.
FIG. 9 is a schematic view of a hub according to yet another embodiment of the present invention.
Fig. 10 is a schematic view of a first portion, a second portion and a third portion of a sloped surface according to another embodiment of the present invention.
Fig. 11 is a schematic cross-sectional view of a prior art liquid chamber mechanism.
[ symbolic description ]
A: actuating module
A1: switch
A2: fastener(s)
A3: cavity body
A31: fine tuning piece
A4: piezoelectric actuator
A5: lever
A51: support end
A52: support member
A53: resistance end
A54: force application part
A55: first elastic piece
A56: second elastic piece
B: liquid chamber module
B1: heating mechanism
B11: chamber
B12: buckle body
B2: liquid chamber mechanism
B21: liquid chamber seat
B211: nest
B212: upper surface of
B2121: groove part
B213: liquid inlet hole
B22: pivot seat
B221: bearing part
And B222: embedding part
B2221: inclined guide surface
B2222: sealing groove
B2223: sealing element
B223: first through hole
B224: second through hole
B2241: sealing element
B23: liquid chamber
B231: liquid inlet area
B232: liquid storage area
B2321: a first inner wall
B2322: a second inner wall
B2323: a first liquid zone
B2324: second liquid zone
B233: liquid outlet area
B2331: third inner wall
B2332: fourth inner wall
B2333: third liquid zone
B2334: fourth liquid zone
B24: joint head
B241: infusion channel
B25: plunger piston
B251: rod part
B252: head part
B26: valve nozzle seat
B261: leaning surface
B262: valve nozzle
B27: holding seat
C: liquid supply module
C1: first fastening mechanism
C2: second fastening mechanism
And C3: liquid supply cylinder
And C4: infusion tube
D1: central axis
D2: central axis
D3: central axis
E: liquid chamber mechanism
E1: liquid chamber
E12: liquid storage area
E121: a first upper inner wall
E122: first lower inner wall
E123: second upper inner wall
E124: second lower inner wall
E125: a first liquid zone
E126: second liquid zone
E13: liquid outlet area
E131: third inner wall
E132: fourth inner wall
E133: third liquid zone
E134: fourth liquid zone
E2: liquid inlet hole
E3: rod part
E4: valve nozzle seat
E41: leaning surface
F: liquid chamber mechanism
F1: inclined guide surface
F11: first part
F12: second part
F13: third part
F2: embedding part
F3: liquid inlet hole
F4: liquid chamber
A2': liquid chamber
A21': clearance of
A22': accommodating hole
A23': chamber
A24': a first liquid zone
A25': second liquid zone
Detailed Description
Referring to fig. 1, an embodiment of the present invention can be illustrated by taking a liquid material extruding device as shown in the drawing as an example, wherein the liquid material extruding device is provided with an actuating module a, a liquid chamber module B is arranged below the actuating module a, a liquid supply module C is arranged at one side of the actuating module a, a liquid supply cylinder C3 is erected at one side of the actuating module a by a first fastening mechanism C1 positioned above and a second fastening mechanism C2 positioned below the liquid supply module C, a liquid delivery pipe C4 is arranged between the liquid supply cylinder C3 and the liquid chamber module B, and the liquid material in the liquid supply cylinder C can be delivered to the liquid chamber module B by the liquid delivery pipe C4; the actuating module A is provided with a switch A1, and the switch A1 can operate a fastener A2 positioned at the front side and the rear side of the actuating module A to buckle or release the liquid chamber module B, so that the liquid chamber module B can be selectively combined with the actuating module A or detached from the actuating module A.
Referring to fig. 1 and 2, the liquid chamber module B is provided with a heating mechanism B1 and a liquid chamber mechanism B2, wherein the heating mechanism B1 is provided with a chamber B11 for accommodating the liquid chamber mechanism B2, so that the liquid chamber mechanism B2 can be heated by the heating mechanism B1; the front and rear sides of the heating mechanism B1 are respectively provided with a buckle body B12 for the buckle A2 to be embedded and buckled, so that the buckle A2 can directly fix the heating mechanism B1, and the heating mechanism B1 and the liquid chamber mechanism B2 are abutted under the actuating module A in the Z-axis direction.
Referring to fig. 3 and 4, the liquid chamber mechanism B2 is provided with a liquid chamber seat B21 and a pivot seat B22, the pivot seat B22 has a substantially circular shaft shape, the liquid chamber seat B21 is concavely provided with a circular pit-shaped embedded hole B211 for embedding the pivot seat B21, so that the pivot seat B22 can be selectively combined with the liquid chamber seat B21 or detached from the liquid chamber seat B21;
the pivot seat B22 is provided with a bearing portion B221 with a larger radial diameter and an embedding portion B222 with a smaller radial diameter, wherein the bearing portion B221 is supported on an upper surface B212 of the periphery of the embedding recess B211 when the embedding portion B222 is embedded into the embedding recess B211, and meanwhile, a liquid chamber B23 is formed between the outer edge of the embedding portion B222 and the inner edge of the embedding recess B211; the upper surface B212 is concavely provided with a plurality of grooves B2121 for inserting a tool, such as a screwdriver, to pull apart the liquid chamber seat B21 and the pivot seat B22, and the grooves can be disposed on the pivot seat B22 (not shown);
the liquid chamber seat B21 is provided with a liquid inlet B213 horizontally extending in the X-axis direction, two ends of the liquid inlet B213 are respectively communicated with the liquid chamber B23 and a liquid conveying channel B241 in an adapter B24, and the adapter B24 is connected between the liquid conveying pipe C4 (figure 1) and the liquid inlet B213, so that liquid materials can be input into the liquid chamber B23 of the liquid chamber mechanism B2.
Referring to fig. 3, 4 and 5, the pivot seat B22 is provided for a plunger B25 to pivot therein, and a rod portion B251 with a smaller radial diameter below the plunger B25 can extend into the liquid chamber B23; the embedded portion B222 is provided with an inclined guide surface B2221 at a side facing the liquid inlet B213, the inclined guide surface B2221 is an inclined plane facing the liquid inlet B213 and the liquid chamber B23 at the same time, the inclined guide surface B2221 is inclined downward from the embedded portion B222 side toward a direction away from the liquid inlet B213, and is inclined against the bottom side of the embedded portion B222 but not crossing the central axis D1 of the rod portion B251, so that a liquid inlet B231 with a narrow upper part and a wide lower part is formed above the liquid chamber B23, the liquid inlet B213 is correspondingly arranged in a narrower region above the liquid inlet B231, and the longitudinal section (XZ section) of the liquid inlet B231 is slightly right trapezoid or right triangle; the transverse cross-sectional area (XY cross-section) of the embedded portion B222 gradually decreases from top to bottom;
the liquid chamber B23 is provided with a liquid storage area B232 having a substantially annular area below the liquid inlet area B231, the liquid storage area B232 is formed by a first inner wall B2321 and a second inner wall B2322, the first inner wall B2321 and the second inner wall B2322 are defined by the central axis D1, the first inner wall B2321 is close to the liquid inlet hole B213 in the X-axis direction, the second inner wall B2322 is far away from the liquid inlet hole B213 in the X-axis direction, the distance from the first inner wall B2321 to the rod portion B251 in the X-axis direction is greater than the distance from the second inner wall B2322 to the rod portion B251 in the X-axis direction, the first inner wall B2321 and the second inner wall B2322 have a vertical wall surface when viewed in terms of a longitudinal section (XZ section), and the first inner wall B2321 and the second inner wall B2322 have a circular arc-shaped wall surface when viewed in terms of a transverse section (section); the liquid storage area B232 is divided into a first liquid area B2323 approaching the liquid inlet B213 in the X-axis direction and a second liquid area B2324 far away from the liquid inlet B213 in the X-axis direction by taking the central axis D1 as a boundary, wherein the volume of the first liquid area B2323 is larger than that of the second liquid area B2324;
the liquid chamber B23 is provided with a liquid outlet area B233 which is a substantially annular area below the liquid storage area B232, the liquid outlet area B233 is formed by a third inner wall B2331, a fourth inner wall B2332 and a leaning surface B261 which is concavely arranged above the valve seat B26 in a taper shape, the third inner wall B2331 and the fourth inner wall B2332 are defined by the central axis D1, the third inner wall B2331 is close to the liquid inlet hole B213 in the X-axis direction, the fourth inner wall B2332 is far away from the liquid inlet hole B213 in the X-axis direction, the distance from the third inner wall B2331 to the rod portion B251 in the X-axis direction is equal to the distance from the fourth inner wall B2332 to the rod portion B251 in the X-axis direction, the third inner wall B2331 and the fourth inner wall B2332 are provided with vertical wall surfaces in view of longitudinal section (XZ section), and the third inner wall B2331 and the fourth inner wall B2332 are provided with arc-shaped wall surfaces in view of transverse section (XY section); the liquid outlet area B233 is divided into a third liquid area B2333 adjacent to the liquid inlet hole B213 in the X-axis direction and a fourth liquid area B2334 far from the liquid inlet hole B213 in the X-axis direction by the central axis D1, and the volume of the third liquid area B2333 is equal to the fourth liquid area B2334;
the central axis D2 of the liquid storage area B232 and the central axis D3 of the liquid outlet area B233 are separated by a distance to show eccentricity, the central axis D2 of the liquid storage area B232 is closer to the liquid inlet hole B213 than the central axis D3 of the liquid outlet area B233 in the X-axis direction, and the central axis D3 of the liquid outlet area B233 is closer to the second inner wall B2322 and the fourth inner wall B2332 than the central axis D2 of the liquid storage area B232 in the X-axis direction; the central axis D3 of the liquid outlet region B233 is coaxial with the central axis D1 of the rod portion B251, so that the rod portion B251 and the liquid storage region B232 are eccentric to each other, and the rod portion B251 is closer to the second inner wall B2322 in the X-axis direction;
a sealing groove B2222 is concavely arranged at the outer periphery of the embedded portion B222, and the sealing groove B2222 is obliquely arranged downwards along the oblique direction of the oblique guiding surface B2221 and is sleeved with a sealing element B2223 such as an O-ring; when the pivot seat B22 is embedded in the liquid chamber seat B21, the seal member B2223 provides a frictional engagement between the pivot seat B22 and the liquid chamber seat B21, and prevents the liquid material from overflowing into the small gap region between the pivot seat B22 and the liquid chamber seat B21, which is not the liquid chamber B23, so that the liquid material is solidified to affect the detachment and separation between the pivot seat B22 and the liquid chamber seat B21.
Referring to fig. 5, the valve seat B26 is held below the liquid chamber seat B21 by a holding seat B27, the holding seat B27 and the liquid chamber seat B21 are fixed in a screw locking manner, and the valve seat B26 is fixed between the holding seat B27 and the liquid chamber seat B21; the abutment surface B261 of the valve seat B26 selectively abuts against the bottom side of the stem B251; the valve nozzle seat B26 is provided with a valve nozzle B262, and the liquid material in the liquid chamber B23 can be discharged out of the liquid chamber B23 through the valve nozzle B262.
Referring to fig. 5 and 6, the actuating module a is provided with a cavity A3, and a piezoelectric actuator A4 finely tuned by a fine tuning element a31 is disposed in the cavity A3; a lever A5 is arranged below the piezoelectric actuator A4, a supporting end a51 of the lever A5 is arranged below a supporting piece a52, a resistance end a53 of the lever A5 is arranged above the plunger B25 and at the upper end of a head B252 with larger diameter in the radial direction, and a force application part a54 arranged between the supporting end a51 and the resistance end a53 is pressed and applied by the piezoelectric actuator A4, so that the lever A5 can selectively actuate and link the plunger B25 to move up and down so as to squeeze liquid materials in the liquid chamber B23, and the liquid materials are extruded from the valve nozzle B262;
a first elastic member a55 is disposed between the support member a52 and the plunger B25, and the first elastic member a55 can provide an elastic restoring force of the lever A5 after being pressed and forced by the piezoelectric actuator A4;
the pivot seat B22 is provided with a first through hole B223 with a larger radial diameter and a second through hole B224 with a smaller radial diameter, the head portion B251 is arranged in the first through hole B223, and the rod portion B251 is arranged in the second through hole B224; a second elastic member a56 is disposed between the head portion B251 and the second through hole B224, the rod portion B251 passes through the second elastic member a56, and the second elastic member a56 can provide an elastic restoring force after the plunger B25 is pressed and biased by the lever A5; a seal B2241, such as an O-ring, is disposed between the second through bore B224 and the stem portion B251, the seal B2241 preventing liquid material from spilling through the second through bore B224 and affecting the operation of the plunger B25.
According to the liquid chamber mechanism and the liquid material extruding device provided by the embodiment of the invention, when the liquid material enters the liquid chamber B23 from the liquid inlet hole B213, the liquid material can be guided and flows through the liquid inlet area B231 at a higher flowing speed, so that the liquid material flows smoothly, and the solidification of the liquid material is reduced.
Referring to fig. 7, the liquid chamber mechanism B2 (fig. 2) may be replaced by the liquid chamber mechanism E shown in the embodiment, and the liquid chamber mechanism E and the liquid chamber mechanism B2 (fig. 2) have substantially the same configuration, but only differ in the configuration of the liquid chamber E1; the liquid chamber E1 has a liquid storage area E12 below a liquid inlet area E11 with a narrow top and a wide bottom, the liquid storage area E12 is composed of a first upper inner wall E121, a first lower inner wall E122, a second upper inner wall E123, and a second lower inner wall E124, the first upper inner wall E121, the first lower inner wall E122, the second upper inner wall E123, and the second lower inner wall E124 are defined by the central axis D1, the first lower inner wall E122 and the second upper inner wall E123 are disposed on a side close to the liquid inlet hole E2 in the X-axis direction, and the second upper inner wall E123, the second lower inner wall E124 are disposed on a side far away from the liquid inlet hole E2 in the X-axis direction; the wall surface of the first lower inner wall E122 is a curved surface curved from the bottom side of the first upper inner wall E121 toward the central axis D1 as viewed in a longitudinal section (XZ section), and the wall surface of the second lower inner wall E124 is a curved surface curved from the bottom side of the second upper inner wall E123 toward the central axis D1 as viewed in a longitudinal section (XZ section); the liquid storage area E12 is divided into a first liquid area E125 which is close to the liquid inlet E2 in the X-axis direction and a second liquid area E126 which is far away from the liquid inlet E2 in the X-axis direction by taking the central axis D1 as a boundary, and the volume of the first liquid area E125 is larger than that of the second liquid area E126;
the liquid chamber E1 is provided with a liquid outlet area E13 below the liquid storage area E12, the liquid outlet area E13 is formed by a third inner wall E131, a fourth inner wall E132 and a leaning surface E41 concavely arranged above a valve seat E4 in a cone shape, the third inner wall E131 and the fourth inner wall E132 are defined by the central axis D1, the third inner wall E131 is close to the liquid inlet hole E2 in the X-axis direction, the fourth inner wall E132 is far away from the liquid inlet hole E2 in the X-axis direction, and the distance from the third inner wall E131 to the rod portion E3 in the X-axis direction is equal to the distance from the fourth inner wall E132 to the rod portion E3 in the X-axis direction; the liquid outlet area E13 is divided into a third liquid area E133 adjacent to the liquid inlet E2 in the X-axis direction and a fourth liquid area E134 distant from the liquid inlet E2 in the X-axis direction by using the central axis D1 as a boundary, wherein the volume of the third liquid area E133 is slightly smaller than that of the fourth liquid area E134, but for the whole liquid chamber E1, the volume of the liquid chamber E1 adjacent to the liquid inlet E2 in the X-axis direction is larger than that of the liquid inlet E2.
Referring to fig. 8, 9 and 10, the liquid chamber mechanism B2 (fig. 2) may be replaced by the embodiment of the liquid chamber mechanism F shown in the drawings, and the liquid chamber mechanism F and the liquid chamber mechanism B2 (fig. 2) have substantially the same configuration, and only differ in the configuration of the inclined guide surface F1; the inclined guide surface F1 is disposed on one side of an embedded portion F2 having a circular shaft shape facing a liquid inlet hole F3, and the inclined guide surface F1 is composed of a first portion F11, a second portion F12 and a third portion F13; the first portion F11 is an inclined surface facing the liquid inlet F3 and a liquid chamber F4 at the same time and inclined downward in a direction away from the liquid inlet F3, the second portion F12 is a vertical surface continuing to the lower side of the first portion F11 and vertically downward, and an included angle α between the first portion F11 and the second portion F12 is greater than 90 degrees; the third portion F13 is disposed below the first portion F11 and on one side of the second portion F12 near the liquid inlet hole F2, the third portion F13 has a circular shaft-shaped portion with a smaller radial diameter than the embedded portion F2, and a transverse cross-sectional area (XY cross-section) of the embedded portion F2 is gradually reduced from top to bottom; when the liquid material enters the liquid chamber F4, the first portion F11 and the second portion F12 can guide the liquid material to bypass the two sides of the third portion F13 and flow obliquely downward.
The foregoing description of the preferred embodiments of the invention should not be taken as limiting the scope of the invention, which is defined by the appended claims and their description, but rather by the description of the invention, as long as they are defined by the claims.
Claims (10)
1. A liquid chamber mechanism comprising:
a liquid chamber seat and a pivot seat, wherein the liquid chamber seat is provided with an embedding nest for embedding the pivot seat;
the pivot seat is provided with a bearing part with larger radial diameter and an embedding part with smaller radial diameter, wherein the bearing part is positioned above the pivot seat;
the pivot seat is used for a plunger to be pivoted in, and a rod part below the plunger can extend into the liquid chamber; the embedded part is provided with an inclined guide surface at one side facing to a liquid inlet hole, and the inclined guide surface is inclined downwards from one side of the embedded part towards a direction away from the liquid inlet hole, so that a liquid inlet area with a narrow upper part and a wide lower part is formed above the liquid chamber.
2. The liquid chamber mechanism as claimed in claim 1, wherein a sealing groove is provided at an outer peripheral edge of the insertion portion, and the sealing groove is disposed obliquely downward from an oblique direction of the oblique guide surface and is provided for a sealing member to be sleeved therein.
3. The liquid chamber mechanism as claimed in claim 1, wherein the inclined guide surface is an inclined plane facing both the liquid inlet hole and the liquid chamber, the inclined guide surface being inclined against the bottom side of the embedded portion but not crossing the central axis of the rod portion.
4. The liquid chamber mechanism according to claim 1, wherein the liquid inlet hole is correspondingly arranged in a narrower area above the liquid inlet area, and the longitudinal section of the liquid inlet area is a trapezoid or a right triangle with a right angle.
5. The mechanism of claim 1, wherein the bearing portion is supported on an upper surface of the periphery of the nest, and a groove portion is concavely formed on the upper surface, and the groove portion is configured for insertion of a tool to selectively pull open and separate the liquid chamber seat from the pivot seat.
6. The liquid chamber mechanism of claim 1, wherein the liquid chamber is provided with a liquid storage area below the liquid inlet area, the liquid storage area is composed of a first inner wall close to the liquid inlet hole and a second inner wall far away from the liquid inlet hole, and the distance from the first inner wall to the rod part is larger than the distance from the second inner wall to the rod part.
7. The liquid chamber mechanism of claim 6, wherein the liquid chamber is provided with a liquid outlet area below the liquid storage area, the liquid outlet area is composed of a third inner wall close to the liquid inlet hole, a fourth inner wall far away from the liquid inlet hole and a leaning surface concavely arranged above a valve nozzle seat, and the distance from the third inner wall to the rod part is equal to the distance from the fourth inner wall to the rod part.
8. The liquid chamber mechanism of claim 1, wherein the liquid chamber is provided with a liquid storage area below the liquid inlet area, the liquid storage area is divided into a first liquid area close to the liquid inlet hole and a second liquid area far away from the liquid inlet hole by taking a central axis of the rod part as a boundary, and the volume of the first liquid area is larger than that of the second liquid area.
9. The liquid chamber mechanism of claim 8, wherein the liquid chamber is provided with a liquid outlet area below the liquid storage area, the liquid outlet area is divided into a third liquid area close to the liquid inlet hole and a fourth liquid area far away from the liquid inlet hole by taking the central axis of the rod part as a boundary, and the volume of the third liquid area is equal to that of the fourth liquid area.
10. A liquid material extrusion device comprising:
a liquid chamber module provided with the liquid chamber mechanism as claimed in any one of claims 1 to 9 and a heating mechanism; the liquid chamber mechanism is heated by the heating mechanism;
the liquid chamber module is arranged below an actuating module, and one side of the actuating module is provided with a liquid supply module which can convey liquid materials to the liquid chamber module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110120667A TWI775476B (en) | 2021-06-07 | 2021-06-07 | Liquid chamber mechanism and liquid material extrusion device |
| TW110120667 | 2021-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115502035A CN115502035A (en) | 2022-12-23 |
| CN115502035B true CN115502035B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210171409.4A Active CN115502035B (en) | 2021-06-07 | 2022-02-24 | Liquid chamber mechanism and liquid material extrusion device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115502035B (en) |
| TW (1) | TWI775476B (en) |
Citations (13)
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI775476B (en) | 2022-08-21 |
| TW202247908A (en) | 2022-12-16 |
| CN115502035A (en) | 2022-12-23 |
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