CN115502034A - Liquid chamber mechanism and liquid material extrusion device - Google Patents
Liquid chamber mechanism and liquid material extrusion device Download PDFInfo
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- CN115502034A CN115502034A CN202210171402.2A CN202210171402A CN115502034A CN 115502034 A CN115502034 A CN 115502034A CN 202210171402 A CN202210171402 A CN 202210171402A CN 115502034 A CN115502034 A CN 115502034A
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- inlet hole
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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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- Devices For Dispensing Beverages (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides a liquid chamber mechanism and a liquid material extrusion device; this liquid chamber mechanism includes: a liquid chamber seat and a pivot seat, the liquid chamber seat is provided with an embedding nest for embedding the pivot seat; the pivot seat is provided with a bearing part which is positioned above and has larger radial diameter and an embedding part which is positioned below and has smaller radial diameter, and when the embedding part is embedded into the embedding nest, a liquid chamber is formed between the outer edge of the embedding part and the inner edge of the embedding nest; the liquid chamber seat is provided with a liquid inlet hole for inputting liquid materials into the liquid chamber; the pivot seat is used for pivoting a plunger therein, and a rod part below the plunger can extend into the liquid chamber; the liquid chamber is provided with a liquid inlet area, a liquid storage area and a liquid outlet area, the liquid storage area is arranged below the liquid inlet area, and the liquid outlet area is arranged below the liquid storage area; the central axis of the liquid storage area is closer to the liquid inlet hole than the central axis of the rod part; thereby reducing solidification of the liquid material within the liquid chamber mechanism.
Description
Technical Field
The present invention relates to a liquid chamber mechanism and a liquid material extruding apparatus, and more particularly, to a liquid chamber mechanism and a liquid material extruding apparatus for accommodating and extruding a viscous liquid material.
Background
In general, a liquid material extrusion device often retains a viscous liquid material on a work piece in one of a spraying, a spotting and a painting manner; no. I716866, "liquid chamber module of liquid material extrusion apparatus", discloses a liquid material extrusion apparatus, comprising: 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 by the piezoelectric actuator to apply force; 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 with force by the lever, and the other end of the plunger extends into the liquid chamber; when the liquid material extruding operation is carried out, the piezoelectric actuator drives the lever to drive the plunger to move up and down, and the liquid material in the liquid chamber is extruded out through 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 containing chamber a23' through a guide channel A1', because the guide channel A1' is a long and narrow groove with the same width from end to end, when the viscosity of the liquid material is high, the flowing speed of the liquid material in the guide channel A1 'is relatively slow, so that the liquid material is easily accumulated in the guide channel A1' and gradually solidified; after the liquid material flows out of the guide channel A1', the liquid material needs to sequentially flow through the clearance a21', the accommodating hole a22' and the accommodating chamber a23', and if the liquid chamber A2' is divided into a first liquid region a24' close to the guide channel A1' and a second liquid region a25' far from the guide channel A1' by taking the plunger A3' as a boundary, the flow speed of the liquid material in the second liquid region a25' is slower than that in the first liquid region a24', so that the liquid material is easily accumulated in the second liquid region a25' and gradually solidified; whether the liquid material solidifies in the guide channel A1 'or the second liquid area a25', it will eventually cause 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 a liquid material.
Another object of the present invention is to provide a liquid material extrusion apparatus using the liquid chamber mechanism.
A liquid chamber mechanism according to the object of the invention comprises: a liquid chamber seat and a pivot seat, the liquid chamber seat is provided with an embedding nest for the pivot seat to be embedded; the pivot seat is provided with a bearing part which is positioned above and has larger radial diameter and an embedding part which is positioned below and has smaller radial diameter, and when the embedding part is embedded into the embedding nest, a liquid chamber is formed between the outer edge of the embedding part and the inner edge of the embedding nest; the liquid chamber seat is provided with a liquid inlet hole for inputting liquid materials into the liquid chamber; the pivot seat is used for pivoting a plunger therein, and a rod part below the plunger can extend into the liquid chamber; the liquid chamber is provided with a liquid inlet area, a liquid storage area and a liquid outlet area, the liquid storage area is arranged below the liquid inlet area, and the liquid outlet area is arranged below the liquid storage area; the central axis of the liquid storage area is closer to the liquid inlet hole than the central axis of the rod part.
Another object of the present invention is to provide a liquid material extruding apparatus, comprising: 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 central axis of the liquid storage area is closer to the liquid inlet hole than the central axis of the rod part, so that the liquid storage area is biased towards the liquid inlet hole, the volume of an area with a higher flowing speed is increased, the volume of an area with a lower flowing speed is reduced, and the solidification of the liquid material in the liquid chamber mechanism is reduced.
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 view of the liquid module being separated into the liquid chamber mechanism and the heating mechanism according to the embodiment of the invention.
Fig. 3 is a schematic view illustrating the liquid chamber mechanism being separated into the liquid chamber seat and the pivot seat according to the embodiment of the present invention.
Fig. 4 is a schematic sectional view of a liquid chamber mechanism in the embodiment of the present invention.
Fig. 5 is a schematic sectional view of a part of a liquid chamber mechanism in an embodiment of the present invention.
Fig. 6 is a schematic sectional view of a part of a liquid material extruding apparatus according to an embodiment of the present invention.
Fig. 7 is a schematic sectional view of a liquid chamber mechanism in another embodiment of the present invention.
Fig. 8 is a schematic sectional view of a liquid chamber mechanism in still another embodiment of the present invention.
FIG. 9 is a schematic view of a pivot base according to 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 slanted guide surface according to yet another embodiment of the present invention.
Fig. 11 is a schematic sectional view of a liquid chamber mechanism in the related art.
[ notation ] to show
A: actuating module
A1: switch with a switch body
A2: fastening piece
A3: cavity body
A31: fine adjustment piece
A4: piezoelectric actuator
A5: lever
A51: support end
A52: support piece
A53: force resisting end
A54: force application part
A55: first elastic member
A56: second elastic member
B: liquid chamber module
B1: heating mechanism
B11: containing chamber
B12: button body
B2: liquid chamber mechanism
B21: liquid chamber seat
B211: embedded nest
B212: upper surface of
B2121: trough part
B213: liquid inlet hole
B22: pivot seat
B221: bearing part
B222: embedded 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: first inner wall
B2322: second inner wall
B2323: 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 base
B261: back surface
B262: valve nozzle
B27: holding seat
C: liquid supply module
C1: first fastening mechanism
C2: second fastening mechanism
C3: liquid supply cylinder
C4: transfusion tube
D1: central axis line
D2: central axis
D3: central axis
E: liquid chamber mechanism
E1: liquid chamber
E12: liquid storage area
E121: first upper inner wall
E122: first lower inner wall
E123: second upper inner wall
E124: second lower inner wall
E125: 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 seat
E41: back surface
F: liquid chamber mechanism
F1: inclined guide surface
F11: the first part
F12: the second part
F13: third part
F2: embedded part
F3: liquid inlet hole
F4: liquid chamber
And A2': liquid chamber
A21': clearance
A22': receiving hole
A23': containing chamber
A24': first liquid zone
And A25': second liquid zone
Detailed Description
Referring to fig. 1, an embodiment of the present invention may be described by taking the liquid material extruding apparatus as shown in the drawing as an example, the liquid material extruding apparatus 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 the liquid supply module C through a first buckling mechanism C1 located above and a second buckling mechanism C2 located below, a liquid conveying pipe C4 is arranged between the liquid supply cylinder C3 and the liquid chamber module B, and the liquid conveying pipe C4 can convey the liquid material in the liquid supply cylinder C to the liquid chamber module B; the actuating module A is provided with a switch A1, 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, 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 back sides of the heating mechanism B1 are respectively provided with a buckle body B12 for the buckle A2 to buckle, so that the buckle A2 can directly fix the heating mechanism B1, and the heating mechanism B1 and the liquid chamber mechanism B2 lean against the lower part of the actuating module A in the Z-axis direction.
Referring to fig. 3 and 4, the liquid chamber mechanism B2 has a liquid chamber seat B21 and a pivot seat B22, the pivot seat B22 is substantially circular shaft shaped, the liquid chamber seat B21 is recessed with a recessed nest B211 of circular pit shape for the pivot seat B21 to be inserted, 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 part B221 which is located above and has a larger radial diameter and an embedding part B222 which is located below and has a smaller radial diameter, when the embedding part B222 is embedded into the embedding nest B211, the bearing part B221 is supported on an upper surface B212 of the periphery of the embedding nest B211, and meanwhile, a liquid chamber B23 is formed between the outer edge of the embedding part B222 and the inner edge of the embedding nest B211; a plurality of grooves B2121 are recessed in the upper surface B212 for inserting a tool such as a screwdriver to separate the liquid chamber B21 from the pivot B22, and similarly, the grooves may also be formed in the pivot B22 (not shown);
the liquid chamber seat B21 is provided with a liquid inlet B213 extending horizontally in the X-axis direction, both ends of the liquid inlet B213 are respectively led to the liquid chamber B23 and an infusion channel B241 in an adapter B24, and the adapter B24 is connected between the infusion tube C4 (fig. 1) and the liquid inlet B213, so that a liquid material 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 B251 with a smaller radial diameter below the plunger B25 can extend into the liquid chamber B23; the embedding part B222 is provided with an inclined guide surface B2221 on a side facing the liquid inlet hole B213, the inclined guide surface B2221 is an inclined plane facing both the liquid inlet hole B213 and the liquid chamber B23, the inclined guide surface B2221 is inclined downward from the embedding part B222 side toward a direction away from the liquid inlet hole B213, and is inclined against the bottom side of the embedding part B222 without passing through the central axis D1 of the rod part B251, so that a liquid inlet area B231 with a narrow top and a wide bottom is formed above the liquid chamber B23, the liquid inlet hole B213 is correspondingly arranged in a narrower area above the liquid inlet area B231, and the longitudinal section (XZ section) of the liquid inlet area B231 is a trapezoid or a right triangle with a right angle; the transverse sectional area (XY sectional area) of the insertion part B222 is gradually reduced from top to bottom;
the liquid chamber B23 is provided with a liquid storage region B232 having a substantially annular section below the liquid inlet region B231, the liquid storage region 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 bounded 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 from the liquid inlet hole B213 in the X-axis direction, the distance from the first inner wall B2321 to the rod B251 in the X-axis direction is greater than the distance from the second inner wall B2322 to the rod B251 in the X-axis direction, the first inner wall B2321 and the second inner wall B2322 have vertical wall surfaces viewed in a longitudinal section (XZ section), and the first inner wall B2321 and the second inner wall B2322 have a transverse section (an arc-shaped wall surface viewed in an XY section); the liquid storage area B232 is divided into a first liquid area B2323 close to 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, and 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 in an approximately 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 contact surface B261 which is conically recessed above a valve seat B26, the third inner wall B2331 and the fourth inner wall B2332 are bounded 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 from the liquid inlet hole B213 in the X-axis direction, the distance from the third inner wall B2331 to the rod part B251 in the X-axis direction is equal to the distance from the fourth inner wall B2332 to the rod part B251 in the X-axis direction, the arc-shaped cross section 2331 of the third inner wall B2331 and the fourth inner wall B2332 is in an arc-shaped cross section (XZ) when viewed in the longitudinal section (XZ), and the cross section 2331 of the third inner wall B2332 and the fourth inner wall B2332 is in a transverse cross section (XY) when viewed in the transverse direction; the liquid outlet area B233 is divided into a third liquid area B2333 close 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 that of the fourth liquid area B2334;
the central axis D2 of the liquid storage area B232 is eccentric to the central axis D3 of the liquid outlet area B233 at a distance, 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 B251, so that the rod B251 and the liquid storage region B232 are eccentric to each other, and the rod B251 is closer to the second inner wall B2322 in the X-axis direction;
a sealing groove B2222 is concavely formed on the outer circumferential edge of the insertion portion B222, and the sealing groove B2222 is inclined downward in the inclined direction with the inclined guide surface B2221 and is provided with a sealing member B2223, such as an O-ring, to be fitted therein; when the pivot seat B22 is embedded into the liquid chamber seat B21, the sealing member B2223 provides a frictional engagement between the pivot seat B22 and the liquid chamber seat B21, and prevents the liquid material from overflowing to a small gap region between the pivot seat B22 and the liquid chamber seat B21, which is not in 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 is fixed to the liquid chamber seat B21 in a screw-locking manner, and the valve seat B26 is fixed between the holding seat B27 and the liquid chamber seat B21; the seating surface B261 of the valve seat B26 is selectively contacted by the bottom side of the rod B251; the valve seat B26 is provided with a valve B262, and the liquid material in the liquid chamber B23 can be discharged out of the liquid chamber B23 through the valve B262.
Referring to fig. 5 and 6, the actuating module a has 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 on a supporting piece A52 below, a resisting end A53 of the lever A5 is arranged at the upper end of a head B252 with a larger radial diameter above the plunger B25, and a force application part A54 positioned between the supporting end A51 and the resisting end A53 is pressed and applied by the piezoelectric actuator A4, so that the lever A5 can be selectively actuated and can drive the plunger B25 to move up and down to extrude the liquid material in the liquid chamber B23, and the liquid material is extruded from the valve nozzle B262;
a first elastic element a55 is disposed between the support element a52 and the plunger B25, the first elastic element a55 can provide an elastic restoring force after the lever A5 is pressed and applied with a force 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 part B251 is arranged in the first through hole B223, and the rod part B251 is arranged in the second through hole B224; a second elastic member a56 is disposed between the head B251 and the second through hole B224, the rod 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 by the lever A5; a sealing member B2241 such as an O-ring is disposed between the second through hole B224 and the rod portion B251, and the sealing member B2241 can prevent the liquid material from overflowing the second through hole B224 to affect the operation of the plunger B25.
In the liquid chamber mechanism and the liquid material extruding apparatus of the embodiment of the invention, when the liquid material enters the liquid chamber B23 from the liquid inlet hole B213, because the central axis D2 of the liquid storage region B232 is closer to the liquid inlet hole B213 than the central axis D1 of the rod portion B251, the liquid storage region B232 is biased toward the liquid inlet hole B213, so as to increase the volume of the region with the faster flow speed and reduce the volume of the region with the slower flow speed, thereby reducing the solidification of the liquid material in the liquid chamber mechanism.
Referring to fig. 7, the liquid chamber mechanism B2 (fig. 2) may be replaced by the liquid chamber mechanism E shown in the figure, which has substantially the same structure as the liquid chamber mechanism B2 (fig. 2), and only differs in the structure of the liquid chamber E1; the liquid chamber E1 is provided with a liquid storage region E12 below a liquid inlet region E11 with a narrow top and a wide bottom, the liquid storage region 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 bound 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 and the second lower inner wall E124 are disposed on a side far 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 when 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 when viewed in a longitudinal section (XZ section); the liquid storage area E12 is divided into a first liquid area E125 near the liquid inlet E2 in the X-axis direction and a second liquid area E126 far 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 tapered concave leaning surface E41 above a valve seat E4, the third inner wall E131 and the fourth inner wall E132 are bounded 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 from the liquid inlet hole E2 in the X-axis direction, and the distance from the third inner wall E131 to the rod E3 in the X-axis direction is equal to the distance from the fourth inner wall E132 to the rod E3 in the X-axis direction; the liquid outlet area E13 is divided into a third liquid area E133 close to the liquid inlet hole E2 in the X-axis direction and a fourth liquid area E134 far from the liquid inlet hole E2 in the X-axis direction by taking the central axis D1 as a boundary, and the volume of the third liquid area E133 is slightly smaller than that of the fourth liquid area E134, but as for the liquid chamber E1 as a whole, the volume of the area of the liquid chamber E1 close to the liquid inlet hole E2 in the X-axis direction is still larger than that of the area far from the liquid inlet hole E2.
Referring to fig. 8, 9 and 10, the liquid chamber mechanism B2 (fig. 2) may be replaced by a liquid chamber mechanism F shown in the figure, which has substantially the same structure as the liquid chamber mechanism B2 (fig. 2) and is different from the oblique guide surface F1 only in structure; the inclined guide surface F1 is arranged on one side of an embedding part F2 in a circular shaft shape facing a liquid inlet hole F3, and the inclined guide surface F1 is composed of a first part F11, a second part F12 and a third part F13; the first part F11 faces the inclined surfaces of the liquid inlet hole F3 and the liquid chamber F4 simultaneously and inclines downwards towards the direction far away from the liquid inlet hole F3, the second part F12 is a vertical surface which is connected with the lower side of the first part F11 and vertically downwards, and the included angle alpha between the first part F11 and the second part F12 is larger than 90 degrees; the third portion F13 protrudes below the first portion F11 and the second portion F12 is close to the liquid inlet F2, the third portion F13 has a circular shaft-shaped portion with a smaller radial diameter than the embedded portion F2, and the transverse cross-sectional area (XY cross-section) of the embedded portion F2 is gradually reduced from top to bottom; when the liquid enters the liquid chamber F4, the first portion F11 and the second portion F12 can guide the liquid to flow obliquely downward around the third portion F13.
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 the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.
Claims (10)
1. A liquid chamber mechanism comprising:
a liquid chamber seat and a pivot seat, the liquid chamber seat is provided with an embedding nest for embedding the pivot seat;
the pivot seat is provided with a bearing part which is positioned above and has larger radial diameter and an embedding part which is positioned below and has smaller radial diameter, and when the embedding part is embedded into the embedding nest, a liquid chamber is formed between the outer edge of the embedding part and the inner edge of the embedding nest; the liquid chamber seat is provided with a liquid inlet hole for inputting liquid materials into the liquid chamber; the pivot seat is used for pivoting a plunger therein, and a rod part below the plunger can extend into the liquid chamber;
the liquid chamber is provided with a liquid inlet area, a liquid storage area and a liquid outlet area, the liquid storage area is arranged below the liquid inlet area, and the liquid outlet area is arranged below the liquid storage area; the central axis of the liquid storage area is closer to the liquid inlet hole than the central axis of the rod part.
2. The liquid chamber mechanism according to claim 1, wherein the liquid storage area is divided into a first liquid area near the liquid inlet hole and a second liquid area far from the liquid inlet hole, with a central axis of the rod portion as a boundary, and a volume of the first liquid area is larger than that of the second liquid area.
3. The liquid chamber mechanism according to claim 2, wherein the liquid outlet area is divided into a third liquid area near the liquid inlet hole and a fourth liquid area far from the liquid inlet hole, with the central axis of the rod as a boundary, and a volume of the third liquid area is equal to that of the fourth liquid area.
4. The liquid chamber mechanism as claimed in claim 1, wherein the liquid chamber is provided with a liquid storage region below the liquid inlet region, the liquid storage region is composed of a first inner wall close to the liquid inlet hole and a second inner wall far from the liquid inlet hole, and the distance from the first inner wall to the rod portion is greater than the distance from the second inner wall to the rod portion.
5. The liquid chamber mechanism as claimed in claim 4, wherein the liquid chamber is provided with a liquid outlet region below the liquid storage region, the liquid outlet region is formed by 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 recessed above a valve seat, and the distance from the third inner wall to the rod portion is equal to the distance from the fourth inner wall to the rod portion.
6. The liquid chamber mechanism as claimed in claim 1, wherein the central axis of the liquid storage area is eccentric with the central axis of the liquid outlet area at a distance, and the central axis of the liquid storage area is closer to the liquid inlet hole than the central axis of the liquid outlet area; the central axis of the liquid outlet area is coaxial with the central axis of the rod part.
7. A liquid chamber mechanism as claimed in claim 1, wherein the insertion portion is provided with a slanted guide surface on a side facing the liquid inlet hole, the slanted guide surface being slanted against a bottom side of the insertion portion but not crossing over a central axis of the rod portion, so that the liquid inlet area is formed above the liquid chamber to be narrow at the top and wide at the bottom.
8. The liquid chamber mechanism according to claim 7, wherein a sealing groove is provided at an outer peripheral edge of the insertion portion, and the sealing groove is inclined downward in an inclined direction with respect to the inclined guide surface and is configured to receive a sealing member therein.
9. A liquid chamber mechanism according to claim 7, wherein a transverse sectional area of the insertion portion is gradually reduced from top to bottom.
10. A liquid extrusion apparatus comprising:
a liquid chamber module provided with a liquid chamber mechanism according to 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 |
|---|---|---|---|
| TW110120668A TWI775477B (en) | 2021-06-07 | 2021-06-07 | Liquid chamber mechanism and liquid material extrusion device |
| TW110120668 | 2021-06-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115502034A true CN115502034A (en) | 2022-12-23 |
| CN115502034B CN115502034B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210171402.2A Active CN115502034B (en) | 2021-06-07 | 2022-02-24 | Liquid chamber mechanism and liquid material extrusion device |
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| Country | Link |
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| CN (1) | CN115502034B (en) |
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| TWI820988B (en) * | 2022-10-28 | 2023-11-01 | 萬潤科技股份有限公司 | Installation device and method of sealing ring of liquid valve mechanism |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI775477B (en) | 2022-08-21 |
| CN115502034B (en) | 2023-08-01 |
| TW202247906A (en) | 2022-12-16 |
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