TWI716866B - Liquid chamber module of liquid material extrusion device - Google Patents

Abstract

The present invention provides a liquid chamber module of a liquid material extruding device, including: a heating mechanism, provided with a cover and a heat conduction mold; the heat conduction mold and a first chamber provided on the heat conduction mold and adjacent to the first chamber A loading section of the chamber is jointly provided in the casing; the loading section is provided with a heater; a liquid chamber mechanism is provided in the first chamber of the heating mechanism, and the liquid chamber mechanism is provided with an adaptor A liquid storage tube is provided from outside the liquid chamber module to guide the liquid material into the liquid chamber mechanism. The liquid chamber mechanism is provided with a plunger, and an elastic member provides the plunger with a return driving force; the plunger has a head Part, and a rod part, the lower end of the rod part is located in a liquid chamber in the liquid chamber mechanism, and the liquid material in the liquid chamber can be pushed so that the liquid material in the liquid chamber is squeezed out from a valve nozzle; This facilitates the extrusion of liquid materials with lower fluidity.

Description

Liquid chamber module of liquid material extrusion device

The present invention relates to a liquid chamber module, in particular to a liquid chamber module used in a liquid material extrusion device for containing liquid material for extrusion.

According to, the general liquid material extrusion device often uses one of spraying, spotting, and coating to leave the viscous glue on the work object. This type of liquid material extrusion device is usually equipped with a valve seat in which it is set The piezoelectric actuator drives a lever to amplify the displacement to indirectly push a plunger for liquid material extrusion, so that the plunger in a liquid chamber in a liquid chamber seat below the valve seat The liquid material is pushed so that the liquid material in the liquid chamber is squeezed out by a valve nozzle.

However, in the prior art, the liquid material in the liquid chamber in the liquid chamber seat often uses liquid materials with different viscosities due to different processing and coating requirements. For liquid materials with thicker viscosities, they often have lower fluidity. , Resulting in the phenomenon that the liquid material is not easily squeezed out of the valve nozzle by the plunger, so there is still room for improvement on the liquid chamber seat.

The object of the present invention is to provide a liquid chamber module of a liquid material extrusion device that facilitates the extrusion of liquid materials with low fluidity.

The liquid chamber module of the liquid material extrusion device according to the object of the present invention includes: a heating mechanism provided with a cover and a heat conducting mold; the heat conducting mold and a first chamber provided thereon and adjacent to the first A placing section of the chamber is jointly provided in the casing; the placing section is provided with a heater; a liquid chamber mechanism is provided in the first chamber of the heating mechanism, and the liquid chamber mechanism is provided with an adapter It can guide the liquid material into the liquid chamber mechanism from a liquid storage cylinder outside the liquid chamber module, and the liquid chamber mechanism is provided with A plunger, an elastic member provides the plunger with a return driving force; the plunger has a head and a rod, the lower end of the rod is located in a liquid chamber in the liquid chamber mechanism, and can be placed in the liquid chamber The liquid material is pushed, so that the liquid material in the liquid chamber is squeezed out from a valve nozzle.

In the liquid chamber module of the liquid material extrusion device of the embodiment of the present invention, since the liquid chamber module is composed of a heating mechanism and a liquid chamber mechanism, the liquid chamber mechanism can be easily disassembled and cleaned and can be installed in the heating mechanism Receiving heat from the heat source increases the fluidity of the liquid material in the liquid chamber mechanism, which facilitates the extrusion of the liquid material with lower fluidity, and the casing outside the thermally conductive mold can further increase the function of heat insulation.

A: Liquid material extrusion device

A1: Valve seat

A11: Switch

A12: Fastener

A13: Piezo actuator

A131: Fine tuning parts

A132: The first piezoelectric actuator

A133: The second piezoelectric actuator

A134: Temperature detector

A14: Leverage

A141: Support end

A142: Support

A143: Resistance end

A144: Force Part

A145: Slot

A146: Positioning piece

A15: Push piece

A151: Tip

A152: Rod

A153: Elastic part

A16: Valve hole

A161: Fixed parts

A162: Carrier

A1621: Room

A1622: Through hole

A17: Side wall

A171: Wire duct

A172: Pilot hole

A173: Port

A174: Temperature switch

A175: temperature detector

A18: Top wall

A181: Notch

A19: bottom wall

A191: Pin hole

A1911: Liquid glue coagulum

A192: Room

A1921: Wire

A193: Circuit board

A2: Liquid chamber module

A21: Heating mechanism

A211: Cover

A2111: Long side pieces

A2112: The first slot side

A2113: Opening

A2114: Short side pieces

A2115: The second slot

A2116: Opening

A2117: hollow interval

A212: Thermal conductivity mold

A2121: The first chamber

A2122: Button body

A2123: Opening

A2124: The third slot

A2125: Opening

A2126: Base

A2127: Long side

A2128: Short side

A2129: Top seat

A2130: The second chamber

A2131: Loading area

A2132: The third chamber

A2133: Bottom cover

A2134: Channel

A214: Pin body

A215: Terminal

A2151: Circuit board

A216: Hoop cover

A2161: hollow interval

A217: heater

A2171: Wire

A218: Temperature sensor

A2181: Wire

A219: Thermal conductive glue

A22: Liquid chamber mechanism

A221: Adapter

A2211: Conveyor

A222: Liquid chamber seat

A2221: Chamber

A2222: connecting seat

A2223: connecting hole

A2224: Positioning part

A2225: receiving hole

A2226: Clearance

A223: Pivot

A2231: Ring

A2232: Seal

A2233: positioning seat

A2234: positioning hole

A2235: Guide groove

A2236: Plunger chamber

A2237: Shaft hole

A2238: Collar

A2239: Opening

A224: Valve seat

A2241: Fixed parts

A2242: Room

A2243: Opening

A2244: Valve nozzle

A225: Liquid chamber

A226: Plunger

A2261: head

A2262: Rod

A2263: End

A3: Control Department

A31: terminal block

A4: fixed seat

A41: Air connection

A42: Channel

A5: Liquid reservoir

A51: The first fastening mechanism

A52: Second buckle mechanism

A53: Conveying pipe

B: Liquid chamber mechanism

B1: Liquid chamber seat

B11: Carrier

B12: neck

B121: screw hole

B13: Chamber

B14: Connection part

B15: connecting hole

B16: receiving hole

B2: Adapter

B21: Conveyor

B3: Pivot

B31: flange

B32: Upper pivot

B321: Base

B322: Top seat

B33: Lower pivot

B34: Plunger chamber

B35: Shaft hole

B36: Seal

B37: Shaft seal

B38: opening

B39: Shaft seal

B4: Valve seat

B41: Kit

B411: External thread

B42: Room

B421: bottom edge

B43: Opening

B44: Valve nozzle

B441: Cone

B5: Liquid chamber

B6: Plunger

B61: head

B611: Positioning department

B62: Rod

B63: End

B7: Elastic part

C: Valve seat

C1: accommodation interval

C2: Chamber

C3: neck hole

C4: Sleeve

C41: Set of pivot

C42: Fixed Arrival Department

C421: Arrival

C5: Piezo actuator

C6: Leverage

C61: Resistance end

C611: pivot slot

C62: Force Part

C7: Elastic part

Fig. 1 is a three-dimensional schematic diagram of a liquid material extrusion device in an embodiment of the present invention.

Fig. 2 is a three-dimensional schematic diagram of the liquid chamber module in the embodiment of the present invention.

3 is a perspective exploded schematic diagram of the heating mechanism and the liquid chamber mechanism of the liquid chamber module in the embodiment of the present invention.

4 is a perspective exploded schematic diagram of the heating mechanism of the liquid chamber module in the embodiment of the present invention.

FIG. 5 is a perspective exploded schematic view of the cover of the heating mechanism of the liquid chamber module in the embodiment of the present invention.

6 is a schematic cross-sectional view of the liquid chamber module in the embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view of the liquid chamber mechanism in the embodiment of the present invention.

FIG. 8 is a partial cross-sectional view of the combination of the liquid chamber module and the valve seat in the embodiment of the present invention.

9 is a schematic diagram of the appearance of another liquid chamber mechanism of the liquid chamber module in the embodiment of the present invention.

10 is a schematic cross-sectional view of another liquid chamber mechanism embodiment of the liquid chamber module in the embodiment of the present invention.

FIG. 11 is a partial cross-sectional view of the combination of another liquid chamber mechanism and the valve seat of the liquid chamber module in the embodiment of the present invention.

Please refer to Figure 1. The embodiment of the present invention takes the liquid material extrusion device as shown in the figure as an example. The liquid material extrusion device A is provided with a valve seat A1, and a liquid chamber module A2 is provided under the valve seat A1. The valve seat A1 is provided with a control unit A3 above the valve seat A3. The control unit A3 is equipped with a control circuit board and related circuits, and two wiring terminals A31 are provided above the control unit A3; a fixing seat A4 is provided on one side of the valve seat A1. To be fixed on the machine and properly positioned, the fixed seat A4 is provided with a gas transmission connector A41, which can transport cold gas through the fixed seat A4 and lead into the valve seat A1 for cooling; relative to the liquid chamber mold of the fixed seat A4 A liquid storage cylinder A5 is provided on the other side outside the group. The liquid storage cylinder A5 is provided on the side of the valve seat A1 with a first buckling mechanism A51 located above and a second buckling mechanism A52 located below. A delivery pipe A53 is provided below the liquid cylinder A5 to connect the liquid chamber module A2 to transport the liquid material in the liquid storage cylinder A5 to the liquid chamber module A2. The valve seat A1 is provided with a switch A11, and the switch A11 Operable to buckle or release the liquid chamber module A2 with a fastener A12 located on the front and rear sides of the valve seat A1, so that the liquid chamber module A2 can be combined with the valve seat A1 or from the valve seat A1 is disassembled and completely separated.

Please refer to Figures 2 to 3, the liquid chamber module A2 includes a heating mechanism A21 and a liquid chamber mechanism A22; please refer to Figure 3, the heating mechanism A21 is provided with a rectangular frame-shaped housing A211, the housing A211 There is a thermal conductive mold A212, the cover A211 is made of a material that is not easy to conduct heat, such as engineering plastics, and the thermal conductive mold A212 is made of a material that is easy to conduct heat, such as a metal material; The first slot A2112 is provided with an opening A2113 above each first slot A2112; one of the left and right short side pieces A2114 of the cover A211 is provided with a second slot A2115, above the second slot A2115 There is an opening A2116; the thermally conductive mold A212 is provided with a pit-shaped first chamber A2121, and the outer sides of the thermally conductive mold A212 on the front and rear sides of the first chamber A2121 are respectively provided with a convex buckle body A2122, The buckle body A2122 is located exactly in the area hollowed out by the first slot A2112 of the cover A211; an opening A2123 is formed above the first chamber A2121, and a third slot A2124 is formed on one side. An opening A2125 is formed above the third groove A2124, and the third groove A2124 corresponds to and communicates with the second groove A2114 of the housing A211; the upper part of the heat conducting mold A212 is opposite to the other side of the first chamber A2121 A plurality of pin bodies A214 spaced apart are provided. A plurality of terminals A215 are provided above the heat conducting mold A212 between the pin body A214 and the first chamber A2121; a hoop cover A216 is provided on the upper periphery of the first chamber A2121, The hoop cover A216 is made of a material that is not easy to conduct heat, and has a circular hollow section A2161 in the center. The hollow section A2161 is of a size for the liquid chamber mechanism A22 to pass up and down; the liquid chamber mechanism A22 is provided with an adapter A221 is used to guide the liquid material into the liquid chamber mechanism A22; the liquid chamber mechanism A22 is not fixed with any screws and is directly accommodated in the first chamber A2121 of the heating mechanism A21, the liquid chamber mechanism The adapter A221 of A22 is placed in the first chamber A2121 through the opening A2125 above the third chamber A2124 of the first chamber A2121 and the opening A2116 above the second chamber A2115 of the casing A211. The third groove A2124 and the second groove A2115 of the cover A211 protrude outward.

Please refer to Figures 4 and 5, the housing A211 of the heating mechanism A21 is composed of two long-side pieces A2111 forming a long side and two short-side pieces A2114 forming a short side together to form a rectangular frame shape. , And a rectangular hollow section A2117 is provided under the frame of the cover shell A211. The hollow section A2117 can be embedded in a base A2126 protruding below the thermally conductive mold A212; the thermally conductive mold A212 is slightly rectangular cube-shaped, And there are two long sides A2127 constituting the long side and two short sides A2128 constituting the short side. The two buckle bodies A2122 are respectively arranged on the two corresponding long sides A2127 at the front and rear. The third The groove A2124 is set on one of the two short side sides A2128; the long side pieces A2111 or the short side pieces A2114 of the cover A211 are not fixed to each other, and each long side piece A2111 or the short-side piece A2114 are respectively directly screwed and fixed to the corresponding side of the thermally conductive mold A212, and each of the long-side piece A2111 or the short-side piece A2114 can be independently detached from the corresponding side of the thermally conductive mold A212 Separation; The thermal conductive mold A212 The upper four corners are respectively provided with convex top seats A2129. The sides of the thermal conductive mold A212 between the top seats A2129 form a hollow space so that the top seats A2129 are spaced apart. The height of is approximately flush with the height of the periphery of the casing A211.

Please refer to Figures 4 and 6 between the pin body A214 and the first chamber A2121 on the thermally conductive mold A212, above the thermally conductive mold A212 is provided with a concave second chamber A2130, the second chamber A2130 and the first chamber A2130 A holding area A2131 adjacent to the first holding chamber A2121 is provided between a holding chamber A2121, the heat conducting mold A212 and the first holding chamber A2121 provided thereon and the holding area adjacent to the first holding chamber A2121 The section A2131 is collectively provided in the casing A211, the base A2126 protruding under the heat conducting mold A212 is recessed to form a third chamber A2132, the bottom of the third chamber A2132 is covered by a bottom cover A2133; the second A channel A2134 is provided between the chamber A2130 and the third chamber A2132; a circuit board A2151 is provided in the second chamber A2130 for the terminal A215 to be placed and connected, and the placement section A2131 is provided with a heater A217, which heats The device A217 heats the liquid chamber mechanism A22 in a manner of separating the heat conducting mold A212. The wire A2171 of the heater A217 is connected to the circuit board A2151 through the second chamber A2130. A temperature is set in the third chamber A2132. Sensor A218, the wire A2181 of the temperature sensor A218 is connected to the circuit board A2151 through the channel A2134 to the second chamber A2130; the circuit board A2151 of the second chamber A2130 is filled with solidified liquid The thermal conductive glue A219 seals the wire A2171 and the wire A2181.

Please refer to FIG. 7, the liquid chamber mechanism A22 is an independently detachable component that can be separated from the valve seat A1 and the liquid chamber module A2. The liquid chamber mechanism A22 is provided with: a liquid chamber seat A222, inside the liquid chamber seat A222 A cavity A2221 in the shape of a pit is provided. The upper edge of the liquid chamber seat A222 horizontally protrudes to one side and a connecting seat A2222 is provided with a threaded connecting hole A2223 communicating with the chamber A2221 , The connecting seat A2222 is screwed to the adapter A221 which is an independent component and is provided with external threads. The connector A221 is provided with a hole-shaped conveying channel A2211 communicating with the connecting hole A2223 and the chamber A2221; the connecting seat A2222 is provided with a convex-shaped positioning portion A2224; the bottom of the chamber A2221 is provided with a larger aperture than the chamber A2221 is a small section of the receiving hole A2225; a pivot seat A223 is set in the chamber A2221 of the liquid chamber seat A222, and the pivot seat A223 is provided with an outwardly horizontally protruding ring A2231, and the ring A2231 is sealed A2232 seals the gap between the pivot seat A223 and the cavity A2221. The ring edge A2231 horizontally protrudes to one side with a positioning seat A2233, and a positioning hole A2234 is opened on the positioning seat A2233; the pivot seat A223 is round The cylindrical outer circumference is recessed with a Z-axis guide groove A2235. The liquid material input from the conveying channel A2211 of the adapter A221 can enter the guide groove A2235 and the chamber A2221. The positioning hole A2233 fits exactly in The convex-shaped positioning portion A2224 on the connecting seat A2222 of the liquid chamber seat A222 makes the guide groove A2235 of the pivot seat A223 correspond to the same side of the connecting seat A2222 and the adapter A221, and make the conveying path A2211 communicates with the connecting hole A2223 and the guide groove A2235; a clearance A2226 is maintained between the bottom of the pivot seat A223 and the bottom of the chamber A2221, and the liquid material enters the clearance A2226 through the guide groove A2235, and the accommodation on the liquid chamber seat A222 The hole A2225 communicates with the clearance A2226 and can allow liquid to flow between the receiving hole A2225 and the clearance A2226; the pivot A223 is provided with a plunger chamber A2236, and the plunger chamber A2236 is provided with the A shaft hole A2237 communicates with the clearance A2226 and the receiving hole A2225. A collar A2238 is arranged below the shaft hole A2237; an opening A2239 is formed above the plunger chamber A2236; a valve nozzle seat A224 is fixed by a valve seat A224. The piece A2241 is fixed at the lower end of the liquid chamber seat A222, the valve nozzle seat A224 is provided with a recessed chamber A2242, and an opening A2243 above the chamber A2242 is connected to and communicated with the receiving hole A2225 of the liquid chamber seat A222 A valve mouth A2244 in the shape of a fine hole is provided under the chamber A2242. The upper end of the valve mouth A2244 communicates with the chamber A2242, and the lower end communicates with the outside of the valve mouth seat A224; the clearance A2226 and the receiving hole A2225 , The three chambers A2242 communicate and form a liquid chamber A225; A plunger A226, the plunger chamber A2236 provided in the pivot seat A223, includes a head A2261 with a larger rod diameter and a shorter rod length above, and a smaller diameter below the head A2261 , A longer rod A2262, the rod A2262 extends downward through the shaft hole A2237, and the lower end is located in the liquid chamber A225, the rod A2262 radially does not contact the peripheral wall surface of the liquid chamber A225; The rod portion A2262 of the plunger A226 in the plunger chamber A2236 is sheathed with an elastic member A227 composed of a spring, and the elastic member A227 provides a driving force for the first plunger A226 to return when compressed; the plunger A226 uses an arc-shaped end A2263 at the bottom of the rod A2262 to push the liquid material in the liquid chamber A225 against the valve nozzle A2244 when force is applied, so that the liquid material in the liquid chamber A225 comes from the valve Nozzle A2244 extruded.

1 and 8, the valve seat A1 of the liquid material extruding device A is provided with a piezoelectric actuator A13 that is fine-tuned by a fine-tuning member A131. The piezoelectric actuator A13 includes an upper and a lower series connected in series. A first piezoelectric actuator A132 located below and a longer length and a second piezoelectric actuator A133 located above and a shorter length; the piezoelectric actuator A13 is provided with a temperature sensor formed by a thermistor A sensor A134 is used to detect the temperature of the piezoelectric actuator A13; a lever A14 is provided under the piezoelectric actuator A13, and a supporting end A141 of the lever A14 is provided on a supporting member A142 underneath, and the other resistance end A143 is arranged at the upper end of a pressing member A15, and the force application portion A144 of the lever A14 located between the support end A141 and the resistance end A143 is pressed and forced by the piezoelectric actuator A13, and the force application portion A144 A slot A145 is provided on the lever A14 between the resistance end A143, and the slot A145 is just pivotally inserted by a positioning member A146 protruding from the inner bottom side of the valve seat A1, so as to limit the horizontal swing of the lever A14. The lower end of the valve seat A1 is provided with a valve hole A16, the valve hole A16 is fixed with a fixing member A161 in a cylindrical carrier A162, the carrier A162 is provided with a chamber A1621, the chamber A1621 is provided with a Through hole A1622; the upper end of the pressing member A15 is provided with a top end portion A151 with a wider radial shaft diameter, and the lower end is provided with a rod portion A152 with a narrower radial shaft diameter. The lower end of the rod portion A152 passes through the through hole A1622 In addition, the rod A152 is located in the chamber The inner part of A1621 is sleeved with an elastic member A153 composed of a spring on the outer diameter, so that the top end A151 maintains a driving force against the resistive end A143 of the lever A14, so that only a slight protrusion below the rod A152 The necessary section difference of the small up and down fretting is below the through hole A1622; the valve seat A1 has a rectangular cross section, and its surrounding sides include two parallel long sides and two parallel short sides. The piezoelectric actuator The device A13 is leaning against a side wall A17 of a short side in the valve seat A1, and the fixing seat A4 is arranged outside the side wall A17 of the valve seat A1 on the short side of the piezoelectric actuator A13. The seat A1 is provided with a wire groove A171 recessed in the Z axis from the outside to the inside of the side wall A17 on the outside of the side wall A17. The proximal end of the side wall A17 is provided with a guide hole communicating with the upper end of the wire groove A171 on the outside and the inside of the valve seat A1 A172, the guide hole A172 is located above the fixing seat A4, and a top wall A18 of the upper end of the valve seat A1 adjacent to the guide hole A172 is provided with a notch A181 connecting the inside and the outside of the valve seat A1; one of the lower ends of the valve seat A1 The bottom wall A19 is provided with two pin holes A191 and a chamber A192 with an open lower end. The chamber A192 is provided with a circuit board A193. The circuit board A193 is connected with a wire A1921 extending through the wire slot A171 to the guide hole A172, and pass through the guide hole A172 to enter the valve seat A1, and then pass through the slot A181 to extend to the upper end of the valve seat A1. The part where the circuit board A193 is connected to the wire A1921 is located In the chamber A192, the chamber A192 is filled with a liquid glue coagulum A1911, such as silicone; the recessed opening on the outside of the wire groove A171 is covered and closed by the fixing seat A4, and the fixing seat A4 is A channel A42 is provided to connect the air delivery end A41 with an air port A173 of the side wall A17 at the lower end of the valve seat A1. The air port A173 is located inside the valve seat A1, which corresponds to one side of the first piezoelectric actuator A132. The cold air input from the air terminal A41 enters the valve seat A1 through the channel A42 and the air port A173 to dissipate and cool the heat generated by the operation of the piezoelectric actuator A13, and make the hot air inside the valve seat A1 It is discharged through the guide hole A172, and the side wall A17 of the valve seat A1 outside the guide hole A172 is provided with a temperature switch A174, which can overheat or accumulate the temperature of the piezoelectric actuator A13 due to the failure of the heater A217. The resulting temperature of the valve seat A1 as a whole is detected; A temperature detector A175 composed of a thermistor is provided on the inner wall surface of the side wall A17 between the side wall A17 of the valve seat A1 and the piezoelectric actuator A13 to detect the temperature inside the valve seat A1.

Please refer to Figures 1, 4, and 8, the liquid chamber module A2 presses the upper end of each top seat A2129 on the heat conduction mold A212 against the bottom wall A19 of the lower end of the valve seat A1, so that the pin body A214 is inserted into the valve The pin hole A191 of the bottom wall A19 at the lower end of the seat A1 is positioned, and by operating the switch A11 on the valve seat A1, the fasteners A12 on the front and rear sides of the valve seat A1 are connected to the liquid chamber module A2. The buckle body A2122 protruding from the outer side of the thermally conductive mold A212 is buckled to complete the buckling assembly of the liquid chamber module A2. The upper end surface of the head A2261 of the plunger A226 is supported by the valve seat A1. The lower end of the pressing member A15 slightly protrudes below the through hole A1622 and the rod A152 is in contact with each other, and the terminal A215 on the liquid chamber module A2 is in contact with the chamber A192 at the lower end of the valve seat A1 Corresponding contacts on the circuit board A193 in the circuit board, so that the valve seat A1 can supply power to the heater A217 and the temperature sensor A218 of the heating mechanism A21 in the liquid chamber module A2 through the wire A1921 and the circuit board A193, And the temperature information sensed by the temperature sensor A218 is returned to the control unit A3.

The aforementioned liquid chamber mechanism A22 can be replaced by the embodiment of the liquid chamber mechanism B as shown in Figures 9 and 10 (the following mechanisms are the same as the previous embodiment using the same number). The liquid chamber mechanism B is provided with: a liquid chamber seat B1 , The liquid chamber seat B1 is integrally provided with a bearing portion B11 relatively located above and having a larger radial diameter width and a neck portion B12 relatively located below and having a smaller radial diameter width. The appearance of the bearing portion B11 and the neck portion B12 Roughly in the shape of a round shaft; the liquid chamber seat B1 is provided with a cavity B13 in the shape of a pit, and the chamber B13 is provided on the carrying portion B11 of the liquid chamber seat B1 and a connecting portion B14 protruding to one side Above a connecting hole B15 arranged horizontally in the middle and horizontal direction, the connecting hole B15 is provided with a thread and is screwed with an adapter B2 provided with an external thread. The adapter B2 itself is an independent component and has a conveying channel B21 inside. The connecting hole B15 communicates with the conveying path B21, which can be used for guiding The liquid guide material enters the liquid chamber mechanism B; the bottom of the chamber B13 is provided with a receiving hole B16 having a diameter smaller than that of the chamber B13, and the connecting hole B15 is provided on one side of the receiving hole B16 and communicates with it; the neck The bottom end of the receiving hole B16 at the lower end of B12 is recessed with a screw hole B121 with a larger diameter than the receiving hole B16; a pivot seat B3, and the pivot seat B3 is provided with an outwardly horizontally convex annular flange B31, The pivot seat B3 includes an upper pivot portion B32 located above the flange B31 and a lower pivot portion B33 located below the flange B31; the upper pivot portion B32 is provided with a plunger chamber B34, below the plunger chamber B34 A shaft hole B35 communicating with the accommodating hole B16 in the liquid chamber seat B1 is provided, and the upper pivot portion B32 is integrally provided with a base B321 located relatively below and having a larger radial diameter width, and relatively located above and having a relatively larger radial diameter width. The small top seat B322, the appearance of the base B321 and the top seat B322 are round shaft-shaped, the radial diameter width of the base B321 is smaller than the radial diameter width of the flange B31; the lower pivot part B33 has a round shaft-shaped appearance and Set in the cavity B13 of the liquid chamber seat B1, a seal B36 on the outer circumferential surface near the flange B31 seals the clearance between the outer circumference of the lower pivot portion B33 and the inner circumference of the cavity B13, A shaft seal B37 is provided at the lower end of the lower pivot portion B33; an opening B38 is formed above the plunger chamber B34, and a shaft seal B39 is provided on the periphery of the opening B38; a valve seat B4, the valve seat B4 is It is made of tungsten steel and is held by a set B41 from bottom to top, and is screw-locked to the lower end of the liquid chamber seat B1 by means of the outer thread B411 on the outer edge of the set B41. The screw hole B121 is provided with the valve seat B4. A chamber B42 is recessed. An opening B43 above the chamber B42 is connected to and communicates with the receiving hole B16 of the liquid chamber seat B1. An arc-concave bottom edge B421 is formed below the chamber B42, Below the bottom edge B421 is a valve mouth B44 in the shape of a fine hole. The upper end of the valve mouth B44 communicates with the chamber B42, and the lower end communicates with the outside of the valve mouth seat B4; the receiving hole B16 and the chamber B42 communicate with each other. A liquid chamber B5 containing the liquid material is formed together; the outside of the valve nozzle B44 of the valve nozzle seat B4 forms an oblique cone-shaped conical surface B441 with a small lower circular diameter and a large upper circular diameter, Within the height range of the cone surface B441, there is no component covering or blocking the radial space on the outer periphery of the cone surface B441; a plunger B6 is arranged in the plunger chamber B34 in the pivot seat B3, It includes a head B61 with a larger rod diameter and a shorter rod length located above, and a rod B62 with a smaller rod diameter and longer rod length located below the head B61. The upper end of the head B61 is convex A positioning portion B611, the rod portion B62 extends downward through the shaft hole B35 and the shaft seal B37, and the lower end of the rod portion B62 is located in the liquid chamber B5 formed by the containing hole B16 and the containing chamber B42; the plunger contains The rod portion B62 of the plunger B6 in the chamber B34 is sheathed with an elastic member B7 composed of a spring. The elastic member B7 provides a driving force for the plunger B6 to restore when compressed; the rod portion B62 of the plunger B6 The radial direction is not in contact with the peripheral wall surface of the liquid chamber B5, but when the plunger B6 is driven, the plunger B6 abuts the chamber of the valve seat B4 with an arc-shaped end B63 at the bottom of the rod B62 The arc-shaped bottom edge B421 surface below B42 makes the liquid material in the liquid chamber B5 squeeze out of the valve nozzle B44.

Referring to FIG. 11, the liquid chamber mechanism B is bounded by the flange B31, the lower pivot portion B33 and the liquid chamber seat B1 below the flange B31 are located in the heat conduction of the heating mechanism A21 of the liquid chamber module A2 In the first chamber A2121 on the mold A212, the base B321 of the upper pivot portion B32 above the flange B31 is set in an accommodating section C1 at the bottom of the valve seat C, and the radial diameter of the flange B31 The width is greater than the accommodating interval C1, and under the accommodating interval C1, it stops against the bottom of the valve seat C, so that the upper pivot portion B32 cannot move upward; at the same time, the radial diameter width of the flange B31 is greater than the The first accommodation chamber A2121 is located above the first accommodation chamber A2121 against the upper edge of the liquid chamber seat B1, so that the lower pivot portion B33 cannot move down; the accommodation section C1 is provided with the valve A neck hole C3 communicates with the cavity C2 inside the seat C, the top seat B322 of the upper pivot B32 pivots through the neck hole C3; the neck hole C3 is provided with a seat C4, the seat C4 includes a pivot A sleeve pivot portion C41 outside the upper pivot portion B32 and inside the inner diameter circumference of the neck hole C3, and a fixing portion C42 located outside the neck hole C3, the fixing portion C42 faces outward from the upper pivot portion B32 Sideways A resisting portion C421 is protruded. Between the resisting portion C421 and a lever C6 driven by a piezoelectric actuator C5 is an elastic member C7 composed of a spring. The resisting end C61 of the lever C6 is provided with a hollow-shaped pivot The groove C611 is supported at the positioning portion B611 protruding from the upper end of the head B61 of the plunger B6 to restrict the horizontal plane of the lever C6 from swinging left and right; the elastic member C7 is located between the resisting end C61 and the force applying portion C62 of the lever C6 ; The liquid chamber mechanism B is not screwed with the valve seat C and the liquid chamber module A2 by any screws or other types of screws, so the liquid chamber mechanism B is an independent detachable with the valve seat C and The liquid chamber module A2 separates and combines the mold components. When the liquid chamber module A2 is separated from the valve seat C (as shown in Figure 1, the switch A11 is operated), the outer part of the lower pivot B33 is sealed by the seal B36. The clearance between the circumference and the inner circumference of the chamber B13 makes the pivot seat B3 and the liquid chamber seat B1 maintain a proper tightness to be integrated, so when the liquid chamber module A2 is removed, the entire liquid chamber mechanism B It will then be separated from the valve seat C and the heating mechanism A21.

In the liquid chamber module of the liquid material extrusion device of the embodiment of the present invention, since the liquid chamber module A2 is composed of a heating mechanism A21 and a liquid chamber mechanism A22, the liquid chamber mechanism A22 can be easily disassembled and cleaned, and can be used in the The heating mechanism A21 is heated by a heat source to increase the fluidity of the liquid material in the liquid chamber mechanism A22, which helps the liquid material with lower fluidity to be extruded, and the housing A211 outside the heat conducting mold A212 is more effective Increase the function of heat insulation.

However, the foregoing are only preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the description of the invention, All are still within the scope of the invention patent.

A2: Liquid chamber module

Claims (16)

A liquid chamber module of a liquid material extruding device, comprising: a heating mechanism, provided with a cover and a heat conduction mold; the heat conduction mold and a first chamber provided on the heat conduction mold and a first chamber adjacent to the first chamber The placing section is jointly provided in the casing; the placing section is provided with a heater; a liquid chamber mechanism is provided in the first chamber of the heating mechanism, and the liquid chamber mechanism is provided with an adapter for A liquid storage cylinder outside the liquid chamber module guides the liquid material into the liquid chamber mechanism, the liquid chamber mechanism is provided with a plunger, an elastic member provides a driving force for the plunger to return; the plunger has a head, and A rod, the lower end of the rod is located in a liquid chamber in the liquid chamber mechanism, and the liquid material in the liquid chamber can be pushed so that the liquid material in the liquid chamber is squeezed out from a valve nozzle. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein, the two long side members of the front and the back of the cover are respectively provided with a first groove, and the upper part of each first groove is respectively provided There is an opening, and a buckle body is respectively provided on the outer side of the heat conduction mold at the front and rear sides of the first chamber and is located in the section hollowed out between the first groove. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein one of the two short side pieces on the left and right sides of the cover is provided with a second groove, and an opening is provided above the second groove An opening is formed above the first chamber, and a third groove is provided on one side, an opening is formed above the third groove, and the third groove corresponds to and communicates with the second groove of the casing; the The adapter is placed in the third groove and the second groove through the opening between the third groove and the opening between the second groove and protrudes outward. For example, the liquid chamber module of the liquid material extruding device described in the scope of the patent application, wherein the upper part of the thermally conductive mold is provided with a pin body spaced apart from the other side of the first chamber; the liquid chamber module The pin body is inserted into a pin hole of a bottom wall of the lower end of a valve seat for positioning with the valve seat. For example, the liquid chamber module of the liquid material extrusion device described in the first item of the scope of patent application, wherein a plurality of terminals are arranged above the heat conducting mold; the terminals abut against the corresponding contacts on a circuit board at the lower end of a valve seat, so that the The valve seat can supply power to the heater of the heating mechanism. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein a hoop cover is provided on the upper periphery of the first chamber, and the hoop cover is made of a material that is not easy to conduct heat, and the center is provided with a hollow The hollow space allows the liquid chamber mechanism to pass up and down. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein the casing is composed of two long side pieces forming a long side and two short side pieces forming a short side. A rectangular frame shape is formed, and a hollow space is provided under the frame body of the casing, and the hollow space can be embedded in a base protruding below the heat conducting mold. For example, the liquid chamber module of the liquid material extruding device described in item 7 of the scope of patent application, wherein the long side members or the short side members of the casing are not fixed to each other, and each long side member Or the short-side pieces are respectively directly screwed and fixed to the corresponding sides of the heat-conducting mold, and each of the long-side pieces or the short-side pieces can be independently detached from the corresponding sides of the heat-conducting mold. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein the heat conduction mold is slightly rectangular cube-shaped, and is provided with two long sides constituting the long side and two short sides. On the short side, two buckle bodies are respectively arranged on the two front and rear corresponding long sides, and a third slot is arranged on one of the two short sides. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein the four corners of the upper part of the heat conduction mold are respectively provided with top seats, and the sides of the heat conduction mold between the top seats form a hollow The interval allows the top seats to form an interval, and the height of each top seat is approximately flush with the height of the periphery of the casing. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein a second chamber is provided on the thermally conductive mold, and the second chamber and the first chamber are adjacent to the the first In the placing section of the containing chamber, a circuit board is provided in the second containing chamber for a terminal to be placed and connected, and the wire of the heater is connected with the circuit board through the second containing chamber. For example, the liquid chamber module of the liquid material extrusion device described in claim 11, wherein the heat conducting mold forms a third chamber, and a channel is provided between the second chamber and the third chamber; A temperature sensor is arranged in the three chambers, and a wire of the temperature sensor is connected to the second chamber and the circuit board through the channel. For example, the liquid chamber module of the liquid material extrusion device described in the scope of patent application, wherein the lower part of the circuit board of the second chamber is filled with liquid solidified thermal conductive glue to seal the wires and wires. For example, the liquid chamber module of the liquid material extrusion device described in the scope of the patent application, wherein the liquid chamber mechanism is provided with: a liquid chamber seat, the liquid chamber seat is provided with a chamber, and the chamber is provided with a connection The hole is screwed with the adapter and communicates with the inside. The bottom of the chamber is provided with a receiving hole with a smaller diameter than the chamber; a pivot seat is arranged in the chamber of the liquid chamber seat, and the pivot seat is provided above A ring protruding horizontally outward; a clearance is maintained between the bottom of the pivot seat and the bottom of the chamber; a plunger chamber is provided in the pivot seat, and the lower part of the plunger chamber is provided with the clearance and the receiving hole A shaft hole communicating; an opening is formed above the plunger chamber; a valve nozzle seat, the valve nozzle seat is fixed on the lower end of the liquid chamber seat by a fixing member, the valve nozzle seat is provided with a recessed chamber, An opening above the chamber is connected to the receiving hole of the liquid chamber seat, and a valve mouth with a fine hole is arranged below the chamber. The upper end of the valve mouth communicates with the chamber, and the lower end is connected with the valve mouth. The outside of the seat communicates; the clearance, the receiving hole, and the chamber communicate to form a liquid chamber. For example, the liquid chamber module of the liquid material extrusion device described in the first item of the scope of patent application, wherein the liquid material extrusion device is provided with a valve seat, the liquid chamber module is arranged below the valve seat, and the valve seat is provided with There is a piezoelectric actuator; a lever is arranged below the piezoelectric actuator, and a supporting end of the lever is arranged below On a supporting member, the other end of resistance is provided at the upper end of a pushing member; the lower end of the valve seat is provided with a valve hole, a fixing member is used to fix a carrier in the valve hole, and a chamber is provided in the carrier. A through hole is provided under the chamber; the pressing member is provided with a top end at the upper end and a rod at the lower end. The lower end of the rod passes through the through hole, and the part of the rod located in the chamber is sleeved on the outer diameter An elastic member is provided to keep the top end portion with a driving force that pushes upward against the resistance end of the lever, so that only a small section of the rod underneath the rod portion slightly protrudes from the bottom of the through hole. For example, the liquid chamber module of the liquid material extrusion device described in item 1 of the scope of patent application, wherein the liquid chamber mechanism is provided with: a liquid chamber seat, the liquid chamber seat is provided with a chamber, and the chamber is arranged in a Above the connecting hole, the connecting hole is screwed with the adapter and communicates with the inside. The bottom of the chamber is provided with a receiving hole with a diameter smaller than that of the chamber. The connecting hole is arranged on one side of the receiving hole and communicates with it; a pivot Seat, the pivot seat is provided with a flange, the pivot seat includes an upper pivot portion located above the flange and a lower pivot portion located below the flange; the upper pivot portion is provided with a plunger chamber, the plunger A shaft hole communicating with the accommodating hole in the liquid chamber seat is provided below the chamber, and the upper pivot includes a base relatively located below and with a larger radial diameter width and a top seat relatively located above and with a smaller radial diameter width The lower pivot is provided in the chamber of the liquid chamber seat, and the clearance between the lower pivot and the chamber is sealed by a seal, and a shaft seal is provided below the lower pivot; above the plunger chamber An opening is formed, and a shaft seal is provided on the periphery of the opening; a valve nozzle seat, the valve nozzle seat is fixed on the lower end of the liquid chamber seat by a fixing member, the valve nozzle seat is provided with a chamber, and the upper part of the chamber An opening abuts and communicates with the containing hole of the liquid chamber seat, a valve mouth in the shape of a fine hole is arranged under the chamber, the upper end of the valve mouth communicates with the chamber, and the lower end communicates with the outside of the valve mouth seat; The containing hole and the containing chamber are communicated and form a liquid chamber together; a plunger, the plunger containing chamber provided in the pivot seat includes a head with a larger rod diameter located above, and a head located below the head A rod with a smaller rod diameter, with a protruding upper end of the head A positioning part, the rod part extends downward through the shaft hole and the lower end is located in the liquid chamber formed by the containing hole and the chamber; the rod part of the plunger in the plunger chamber is sheathed with an elastic member, When the elastic member is compressed, the plunger is provided with a recovery driving force; the plunger uses the rod to push the liquid material in the liquid chamber to extrude the liquid material in the liquid chamber from the valve nozzle.

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