TW202247906A - Liquid chamber mechanism and liquid material extrusion device which can reduce the situation that the liquid material is solidified in the liquid chamber mechanism - Google Patents

Abstract

The invention provides a liquid chamber mechanism and a liquid material extrusion device. The liquid chamber mechanism includes a liquid chamber seat and a pivot seat. The liquid chamber seat is provided with an embedding nest in which the pivot seat is embedded. The pivot seat is provided with a support portion located above and having a larger radial diameter and an embedded portion located below and having a smaller radial diameter. When the embedded portion is embedded into the embedding nest, a liquid chamber is formed between the outer edge of the embedded portion and the inner edge of the embedding nest. The liquid chamber seat is provided with a liquid inlet for inputting the liquid material into the liquid chamber. The pivot seat accommodates a plunger pivoted therein, and a rod under 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 than the central axis of the rod. In this way, the situation that the liquid material is solidified in the liquid chamber mechanism is reduced.

Description

Liquid chamber mechanism and liquid material extrusion device

The invention relates to a liquid chamber mechanism and a liquid material extruding device, in particular to a liquid chamber mechanism and a liquid material extruding device for containing viscous liquid material and extruding it.

Press, the general liquid material extruding device usually leaves the viscous liquid material on the working object by spraying, dotting, or coating; Patent No. I716866 "Liquid Chamber Module of Liquid Material Extruding Device" has disclosed a A liquid material extruding device, 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, The lever is pressed and exerted by the piezoelectric actuator; the liquid chamber module is provided with a liquid chamber mechanism, which is provided with a connector for a liquid storage cylinder to guide the liquid material into a liquid chamber; the liquid chamber mechanism is provided with There is a plunger, one end of the plunger is pressed by the lever, and the other end extends into the liquid chamber; when the liquid material is extruded, the piezoelectric actuator drives the lever to move the plunger up and down , extruding the liquid material in the liquid chamber through a valve nozzle.

Please refer to Fig. 11, when the liquid material enters a liquid chamber A2' formed by a clearance A21', an accommodating hole A22' and a chamber A23' through a guide ditch A1', due to the guide The groove A1' is a long and narrow groove with the same width from the beginning to the end. When the viscosity of the liquid material is high, the flow speed of the liquid material in the guide groove A1' will be relatively slow, so that the liquid material is easy to accumulate in the guide groove A1'. and gradually solidify in the ditch A1'; and after the liquid material flows out of the guide ditch A1', it needs to flow through the gap A21', the accommodation hole A22' and the chamber A23' in sequence. If the plunger A3' In order to divide the liquid chamber A2' into a first liquid area A24' close to the guide channel A1' and a second liquid area A25' away from the guide channel A1', the liquid material is in the second liquid area A25' The flow speed will be 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 gradually solidifies; no matter whether the liquid material is in the guide channel A1' or the second liquid area A25 ' Internal solidification will eventually lead to inconvenience when disassembling and cleaning the liquid chamber mechanism.

Therefore, the object of the present invention is to provide a liquid chamber mechanism that can reduce the solidification of liquid materials.

Another object of the present invention is to provide a liquid material extruding device using the liquid chamber mechanism.

The liquid chamber mechanism according to the object of the present invention includes: a liquid chamber seat and a pivot seat, the liquid chamber seat is provided with a socket for the pivot seat to be embedded in; part and an embedding part located below with a smaller radial diameter, when the embedding part is embedded in the nest, a liquid chamber is formed between the outer edge of the embedding part and the inner edge of the nest; the liquid chamber seat A liquid inlet hole is provided to input liquid material into the liquid chamber; the pivot seat is used for a plunger to be pivoted therein, and a rod under the plunger can extend into the liquid chamber; the liquid chamber is provided with a liquid inlet area, a A liquid storage area and a liquid outlet area, the liquid storage area is set under the liquid inlet area, and the liquid output area is set under the liquid storage area; the central axis of the liquid storage area is compared with the center of the rod The axis is closer to the liquid inlet hole.

According to another object of the present invention, the liquid material extrusion device includes: a liquid chamber module, which is 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 provided with Below an actuation module, a liquid supply module is arranged on one side of the actuation module to deliver liquid material to the liquid chamber module.

In the liquid chamber mechanism and liquid material extruding device of the embodiment of the present 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 than the central axis of the rod. The liquid storage area is biased toward the liquid inlet hole, so as to increase the volume of the faster flow area and reduce the volume of the slower flow area, thereby reducing the solidification of the liquid material in the liquid chamber mechanism.

Please refer to Fig. 1, the embodiment of the present invention can be illustrated by taking the liquid material extruding device as shown in the figure as an example. The liquid material extruding device is provided with an actuation module A, and a liquid chamber is arranged below the actuation module A. Module B, one side of the actuating module A is provided with a liquid supply module C, and the liquid supply module C is connected by a first fastening mechanism C1 on the top and a second fastening mechanism C2 on the bottom. A liquid supply cylinder C3 is erected on one side of the actuating module A, and an infusion tube C4 is provided between the liquid supply cylinder C3 and the liquid chamber module B, and the infusion tube C4 can use the liquid in the liquid supply cylinder C The liquid material is delivered to the liquid chamber module B; the actuating module A is provided with a switch A1, and the switch A1 can operate a fastener A2 located on the front and rear sides of the actuating module A to connect the liquid chamber The module B is buckled or released, so that the liquid chamber module B can be selectively combined with the actuating module A or detached from the actuating module A.

Please refer to Figures 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 the liquid chamber mechanism B2 to accommodate, so that the liquid chamber mechanism B2 can Heated by the heating mechanism B1; the front and rear sides of the heating mechanism B1 are each protruded with a button body B12 for the fastener A2 to be embedded, so that the fastener A2 can directly hold the heating mechanism B1, so that the The heating mechanism B1 and the liquid chamber mechanism B2 abut against the lower part of the actuating module A in the Z-axis direction.

Please refer to Figures 3 and 4. The liquid chamber mechanism B2 is provided with a liquid chamber seat B21 and a pivot seat B22. The appearance of the pivot seat B22 is roughly in the shape of a circular shaft. B211 is for the pivot seat B21 to be embedded, so that the pivot seat B22 can be selectively combined with the liquid chamber seat B21 or disassembled and separated from the liquid chamber seat B21; The pivot seat B22 is provided with a supporting portion B221 located above and having a larger radial diameter and an embedded portion B222 located below and having a smaller radial diameter. When the embedded portion B222 is inserted into the nest B211, the bearing The support part B221 is supported on the upper surface B212 of the periphery of the socket B211, and at the same time, a liquid chamber B23 is formed between the outer edge of the embedded part B222 and the inner edge of the socket B211; the upper surface B212 is concavely provided with A plurality of grooves B2121 can be inserted into a tool such as a flathead screwdriver to separate the liquid chamber seat B21 and the pivot seat B22. Similarly, the grooves can also be arranged on the pivot seat B22 (not shown in the figure) ; The liquid chamber seat B21 is provided with a liquid inlet hole B213 extending horizontally in the direction of the X-axis. The head B24 is connected between the infusion tube C4 (FIG. 1) and the liquid inlet B213, so that the liquid material can be input into the liquid chamber B23 of the liquid chamber mechanism B2.

Please refer to Figures 3, 4, and 5, the pivot seat B22 is pivoted by a plunger B25, 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 on the 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 starts from the embedded part B222 One side is inclined downwards away from the liquid inlet hole B213, and obliquely touches the bottom side of the embedded part B222 but does not cross the central axis D1 of the rod part B251, so that the top of the liquid chamber B23 forms a narrow top and a wide bottom. The liquid inlet area B231, the liquid inlet hole B213 is correspondingly located in the narrower area above the liquid inlet area B231, the longitudinal section (XZ section) of the liquid inlet area B231 is roughly a trapezoid or a right triangle with a right angle; the embedded part B222 The transverse cross-sectional area (XY cross-section) gradually decreases from top to bottom; The liquid chamber B23 is provided with a substantially annular liquid storage area B232 below the liquid inlet area B231. The liquid storage area B232 is composed of a first inner wall B2321 and a second inner wall B2322. An 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 B213 in the X-axis direction, and is far away from the liquid inlet in the X-axis direction B213 is the second inner wall B2322, 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 An inner wall B2321 and the second inner wall B2322 have a vertical wall surface when viewed in a longitudinal section (XZ section), and the first inner wall B2321 and the second inner wall B2322 have a vertical wall surface when viewed in a transverse section (XY section). Arc-shaped wall surface; the liquid storage area B232 is bounded by the central axis D1, and is divided into a first liquid area B2323 close to the liquid inlet B213 in the X-axis direction and a first liquid area B2323 away from the liquid inlet in the X-axis direction A second liquid area B2324 of B213, 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 a substantially annular area below the liquid storage area B232. The liquid outlet area B233 is composed of a third inner wall B2331, a fourth inner wall B2332 and a valve seat. The upper part of B26 is formed by a conical recessed surface B261. The third inner wall B2331 and the fourth inner wall B2332 are bounded by the central axis D1. The third inner wall B2331 is the fourth inner wall B2332 away from the liquid inlet B213 in the X-axis direction, and the distance from the third inner wall B2331 to the rod B251 in the X-axis direction is equal to the fourth inner wall The distance from B2332 to the rod portion B251 in the X-axis direction, the third inner wall B2331 and the fourth inner wall B2332 have a vertical wall surface when viewed in a longitudinal section (XZ section), the third inner wall B2331 and the fourth inner wall B2331 The fourth inner wall B2332 has a circular arc-shaped wall surface viewed in a transverse section (XY section); the liquid outlet area B233 is bounded by the central axis D1 and is divided into a section close to the liquid inlet B213 in the X-axis direction. The third liquid area B2333 and a fourth liquid area B2334 away from the liquid inlet B213 in the X-axis direction, 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 is eccentric with the central axis D3 of the liquid outlet area B233, and the central axis D2 of the liquid storage area B232 is compared with the central axis D3 of the liquid outlet area B233 in the X-axis direction. Closer to the liquid inlet B213, 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 area B233 is coaxial with the central axis D1 of the rod portion B251, so the rod portion B251 and the liquid storage area B232 are eccentric to each other, and the rod portion B251 is closer to the second inner wall in the X-axis direction B2322; A sealing groove B2222 is recessed on the outer peripheral edge of the embedded part B222, and the sealing groove B2222 is arranged downwardly with the inclined direction of the inclined guide surface B2221, and a sealing member B2223 such as an O-ring is sleeved therein; when the pivot seat B22 When embedded in the liquid chamber seat B21, the sealing member B2223 on the one hand provides frictional coupling between the pivot seat B22 and the liquid chamber seat B21, and on the other hand prevents the liquid material from overflowing to the pivot seat B22 and the liquid chamber seat B21 The small gap area that does not belong to the liquid chamber B23 will cause the liquid material to solidify and affect the disassembly and separation between the pivot seat B22 and the liquid chamber seat B21.

Please refer to Fig. 5, the valve seat B26 is held under the liquid chamber seat B21 by a retaining seat B27, the retaining seat B27 and the liquid chamber seat B21 are fixed in a screw-locked manner, and the valve seat B26 is fixed on Between the holding seat B27 and the liquid chamber seat B21; the contact surface B261 of the valve seat B26 is selectively touched by the bottom side of the rod B251; the valve seat B26 is provided with a valve mouth B262, the liquid The liquid material in the chamber B23 can be discharged from the liquid chamber B23 through the valve mouth B262.

Please refer to Fig. 5, 6, this actuating module A is provided with a cavity A3, is provided with a piezoelectric actuator A4 fine-tuned by a fine-tuning part A31 in this cavity A3; There is a lever A5, a support end A51 of the lever A5 is set on a support member A52 below, and the resistance end A53 of the lever A5 is set on the upper end of a head B252 with a larger radial diameter above the plunger B25. A force application part A54 between the support end A51 and the resistance end A53 is pressed and applied by the piezoelectric actuator A4, so that the lever A5 can selectively move and move the plunger B25 up and down to squeeze Press the liquid material in the liquid chamber B23, so that the liquid material is extruded from the valve mouth B262; A first elastic member A55 is provided between the support member A52 and the plunger B25, and the first elastic member A55 can provide the elastic recovery force of the lever A5 after being pressed by the piezoelectric actuator A4; The pivot base 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. Set in the second through hole B224; a second elastic member A56 is provided 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 It can provide the elastic recovery force of the plunger B25 after being pressed by the lever A5; a seal B2241 such as an O-ring is provided between the second through hole B224 and the rod B251, and the seal B2241 It can prevent the liquid material from overflowing the second through hole B224 and affecting the action of the plunger B25.

In the liquid chamber mechanism and liquid material extruding device of the embodiment of the present 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 area B232 is compared with the center of the rod B251 The axis D1 is closer to the liquid inlet B213, so that the liquid storage area B232 is biased toward the liquid inlet B213, so as to increase the volume of the faster flow area and reduce the volume of the slower flow area, thereby reducing the liquid material. The case of solidification in the liquid chamber mechanism.

Please refer to Fig. 7, the aforementioned liquid chamber mechanism B2 (Fig. 2) can be replaced by the embodiment of the liquid chamber mechanism E shown in the figure, and the liquid chamber mechanism E has substantially the same structure as the liquid chamber mechanism B2 (Fig. 2) , the only difference is in the structure of the liquid chamber E1; the liquid chamber E1 is provided with a liquid storage area E12 below a liquid inlet area E11 with a narrow top and a wide bottom, and the liquid storage area E12 is formed by a first upper inner wall E121, a first lower inner wall E122, a second upper inner wall E123, a second lower inner wall E124, the first upper inner wall E121, the first lower inner wall E122 and the second upper inner wall E123, the second lower inner wall E124 is bounded by the central axis D1, the first lower inner wall E122 and the second upper inner wall E123 are arranged on the side close to the liquid inlet E2 in the X-axis direction, The second upper inner wall E123 and the second lower inner wall E124 are located on the side away from the liquid inlet E2 in the X-axis direction; the wall surface of the first lower inner wall E122 is viewed in a longitudinal section (XZ section) It is a curved surface curved from the bottom side of the first upper inner wall E121 toward the central axis D1, and the wall surface of the second lower inner wall E124 is viewed from the bottom side of the second upper inner wall E123 in a longitudinal section (XZ section). A curved surface that is curved toward the central axis D1; the liquid storage area E12 is bounded by the central axis D1, and is divided into a first liquid area E125 that is close to the liquid inlet E2 in the X-axis direction and a first liquid area E125 that is far away from the X-axis direction. A second liquid area E126 of the liquid inlet E2, 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, and the liquid outlet area E13 is formed by a third inner wall E131, a fourth inner wall E132 and a conical recess above the valve seat E4. The third inner wall E131 and the fourth inner wall E132 are bounded by the central axis D1, and the third inner wall E131 is close to the liquid inlet E2 in the X-axis direction. The fourth inner wall E132 is far away from the liquid inlet 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 in the X-axis direction The distance to the rod part E3; the liquid outlet area E13 is bounded by the central axis D1, and is divided into a third liquid area E133 close to the liquid inlet E2 in the X-axis direction and a third liquid area E133 away from the inlet hole in the X-axis direction A fourth liquid area E134 of the liquid hole E2, the volume of the third liquid area E133 is slightly smaller than the fourth liquid area E134, but for the liquid chamber E1 as a whole, the liquid chamber E1 is close to the inlet in the X-axis direction. The volume of the area of the liquid hole E2 is still greater than the volume of the area away from the liquid inlet E2.

Please refer to Figures 8, 9, and 10, the aforementioned liquid chamber mechanism B2 (Fig. 2) can be replaced by the embodiment of the liquid chamber mechanism F shown in the figure, and the liquid chamber mechanism F is substantially the same as the liquid chamber mechanism B2 (Fig. 2). It has the same structure, and only differs in the structure of the inclined guide surface F1; Consists of a first part F11, a second part F12 and a third part F13; the first part F11 faces the inclined surface of the liquid inlet F3 and a liquid chamber F4 at the same time and faces away from the liquid inlet F3 Inclined downwards, the second part F12 is a vertical plane that continues on the lower side of the first part F11 and is vertically downward, and the angle α between the first part F11 and the second part F12 is greater than 90 degrees; the third part F13 is raised Protruding below the first part F11 and on the side of the second part F12 close to the liquid inlet F2, the third part F13 has a circular shaft-shaped part with a radial diameter smaller than that of the embedded part F2. The cross-sectional area (XY section) of F2 gradually decreases from top to bottom; when the liquid material enters the liquid chamber F4, the first part F11 and the second part F12 can guide the liquid material to pass around the two sides of the third part F13 and flow down

But what is described above is only a preferred embodiment of the present invention, and should not limit the scope of implementation of the present invention with this, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention, All still belong to the scope covered by the patent of the present invention.

A: Actuation module A1: switch A2: Fasteners A3: Cavity A31: Trimmer A4: Piezoelectric Actuator A5: Leverage A51: Support end A52: Support A53: Resistance end A54: Force department A55: The first elastic piece A56: Second elastic member B: liquid chamber module B1: heating mechanism B11: Containment room B12: button body B2: liquid chamber mechanism B21: liquid chamber seat B211: Embedded nest B212: Upper surface B2121: Groove B213: Inlet hole B22: Pivot seat B221: Supporting part B222: Insert part B2221: Inclined guide surface B2222: Seal groove B2223: Seals B223: First through hole B224: Second through hole B2241: Seals B23: liquid chamber B231: Liquid entry area B232: Storage area B2321: First inner wall B2322: Second inner wall B2323: First liquid area B2324: Second liquid area B233: Outlet area B2331: Third inner wall B2332: Fourth inner wall B2333: The third liquid area B2334: The fourth liquid area B24: Adapter B241: Infusion channel B25: plunger B251: Rod B252: Head B26: valve seat B261: face to face B262: valve mouth B27: Holding seat C: liquid supply module C1: The first fastening mechanism C2: The second fastening mechanism C3: liquid supply cylinder C4: Infusion tube D1: central axis 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: Outlet area E131: third inner wall E132: Fourth inner wall E133: The third liquid area E134: The fourth liquid area E2: Inlet hole E3: stem E4: valve seat E41: face to face F: liquid chamber mechanism F1: Inclined guide surface F11: Part 1 F12: Part Two F13: Part Three F2: Embedded part F3: Inlet hole F4: liquid chamber A2': liquid chamber A21': Clearance A22':Accommodating hole A23': Containment room A24': the first liquid area A25': the second liquid area

Fig. 1 is a three-dimensional schematic diagram of a liquid material extruding device in an embodiment of the present invention. Fig. 2 is a schematic diagram of the liquid vision module decomposed into a liquid chamber mechanism and a heating mechanism in an embodiment of the present invention. Fig. 3 is a schematic diagram of the liquid chamber mechanism decomposed into the liquid chamber seat and the pivot seat in the embodiment of the present invention. Fig. 4 is a schematic cross-sectional view of the liquid chamber mechanism in the embodiment of the present invention. Fig. 5 is a partial cross-sectional schematic diagram of the liquid chamber mechanism in the embodiment of the present invention. Fig. 6 is a partial cross-sectional schematic diagram of a liquid material extruding device in an embodiment of the present invention. Fig. 7 is a schematic cross-sectional view of the liquid chamber mechanism in another embodiment of the present invention. Fig. 8 is a schematic cross-sectional view of the liquid chamber mechanism in another embodiment of the present invention. Fig. 9 is a schematic diagram of a central seat of another embodiment of the present invention. Fig. 10 is a schematic view of the first part, the second part and the third part of the inclined guide surface in another embodiment of the present invention. Fig. 11 is a schematic cross-sectional view of the liquid chamber mechanism in the prior art.

B21: liquid chamber seat

B213: Inlet hole

B222: Insert part

B2221: Inclined guide surface

B2222: Seal groove

B2223: Seals

B23: liquid chamber

B231: Liquid entry area

B232: Storage area

B2321: First inner wall

B2322: Second inner wall

B2323: First liquid zone

B2324: Second liquid zone

B233: Outlet area

B2331: Third inner wall

B2332: Fourth inner wall

B2333: The third liquid area

B2334: The fourth liquid area

B251: Rod

B26: valve seat

B261: face to face

B262: valve mouth

B27: Holding seat

Claims (10)

A liquid chamber mechanism, comprising: A liquid chamber seat and a pivot seat, the liquid chamber seat is provided with an embedding socket for the pivot seat to embed; The pivot seat is provided with a support portion located above and having a larger radial diameter and an embedding portion located below and having a smaller radial diameter. A liquid chamber is formed between the inner edges of the nest; the liquid chamber base is provided with a liquid inlet hole for inputting liquid material into the liquid chamber; can extend into the 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 set under the liquid inlet area, and the liquid outlet area is set under the liquid storage area; the liquid storage area The central axis is closer to the liquid inlet hole than the central axis of the rod. As for the liquid chamber mechanism described in Claim 1, 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, bounded by the central axis of the rod, The volume of the first liquid area is greater than that of the second liquid area. As for the liquid chamber mechanism described in Claim 2, 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, bounded by the central axis of the rod, The volume of the third liquid area is equal to the volume of the fourth liquid area. According to the liquid chamber mechanism described in Claim 1, the liquid chamber is provided with a liquid storage area below the liquid inlet area, and the liquid storage area is composed of a first inner wall close to the liquid inlet hole and a first inner wall away from the liquid inlet hole. The distance between the first inner wall and the rod is greater than the distance between the second inner wall and the rod. According to the liquid chamber mechanism described in claim 4, the liquid chamber is provided with a liquid outlet area below the liquid storage area, and the liquid outlet area is composed of a third inner wall close to the liquid inlet hole and a third inner wall far away from the liquid inlet hole. The fourth inner wall is formed by a contact surface recessed above a valve seat, and the distance from the third inner wall to the rod is equal to the distance from the fourth inner wall to the rod. As for the liquid chamber mechanism described in Claim 1, the central axis of the liquid storage area is eccentrically spaced from the central axis of the liquid outlet area, and the central axis of the liquid storage area is closer to the central axis of the liquid outlet area than the central axis of the liquid outlet area. A liquid inlet hole; the central axis of the liquid outlet area is coaxial with the central axis of the rod. As for the liquid chamber mechanism described in claim 1, the embedded part is provided with an inclined guide surface on the side facing the liquid inlet hole, and the inclined guide surface obliquely touches the bottom side of the embedded part but does not cross the central axis of the rod part, so that The upper part of the liquid chamber forms the liquid-introducing region narrow in the upper part and wider in the lower part. As for the liquid chamber mechanism described in Claim 7, a sealing groove is provided on the outer peripheral edge of the embedded part, and the sealing groove is arranged downwardly from the inclined direction of the inclined guide surface, and a sealing member is sheathed therein. According to the liquid chamber mechanism described in Claim 7, the transverse cross-sectional area of the embedded part gradually decreases from top to bottom. A liquid material extrusion device, comprising: A liquid chamber module, equipped with a liquid chamber mechanism as described 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 under an actuation module, and a liquid supply module is arranged on one side of the actuation module to deliver the liquid material to the liquid chamber module.

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