TWI797927B - Dispensing device and dispensing system - Google Patents

Abstract

The object of the present invention is to provide a discharge device and a discharge system that can fully perform exhaust in a fluid storage part that allows fluid to flow in and out in the housing, and that has a high degree of freedom in the positional relationship between the fluid inlet and the air discharge part; (20) has a fluid introduction part (108), a connection part (78) arranged inside the fluid storage part (110) and an air discharge part (100); the air discharge part (100) has a connection with the fluid storage part (110). Air discharge path (130); the air discharge path (130) has an air discharge part inlet (134) and an air discharge part outlet (138), and the air discharge part inlet (134) is connected to the fluid inlet (108a) through the connection part (78). ) is in communication with the fluid storage part (110), and the outlet of the air discharge part (138) is on either or both of the circumferential direction and the axial direction of the fluid storage part (110) with the inlet of the air discharge part (134). The staggered positions communicate with the outside of the fluid storage part (110).

Description

Dispensing device and dispensing system

The present invention relates to a discharge device and a discharge system.

Conventionally, a discharge device such as a rotary positive displacement pump disclosed in Patent Document 1 below has been provided. The rotary positive displacement pump of Patent Document 1 includes: a power transmission mechanism section having a transmission shaft for transmitting rotational power input from a driver; a pump mechanism section receiving rotational power from the transmission shaft to operate; and a storage body having a supply fluid The inner space of inflow and outflow.

prior art literature

patent documents

Patent Document 1: Japanese Utility Model Registration No. 3221980

Here, in a discharge device such as the conventional rotary positive displacement pump described above, various problems arise when the discharge operation for discharging the fluid is performed with air remaining in the internal space where the fluid flows in and out. For example, when the fluid is discharged with air remaining in the internal space or the like, the air is mixed in the discharged fluid in the form of air bubbles. When a fluid such as an adhesive is discharged and applied in a line like the rotary positive displacement pump of Patent Document 1, there is a possibility that the adhesive may be interrupted in the middle (the application line is broken). In addition, the following phenomenon may also occur, that is, in the discharge device During the discharge operation, the air is compressed and shrinks due to the influence of the internal pressure, but when the discharge operation stops, the internal pressure acting on the air decreases and the volume of the air expands. When this phenomenon occurs, it is possible that the fluid is squeezed out due to the influence of the volume expansion of the air, so that so-called dripping occurs.

In order to eliminate this concern, the inventors of the present invention provided a columnar member such as a shaft or a joint inside the space for the inflow and outflow of the fluid and the space for containing the fluid (hereinafter also referred to as "fluid storage part") as in the uniaxial eccentric screw pump. In the discharge device of the present invention, the structure for reliably discharging the air (exhaust gas) entering the fluid storage part has been studied. As a result, it has been found that when there is a columnar member such as a shaft inside the fluid storage unit, if there is no introduction port (fluid introduction port) for the fluid provided at a predetermined position in the circumferential direction of the fluid storage unit through the columnar member, If the air is exhausted on the opposite side in the circumferential direction (air exhaust part), it may cause insufficient exhaust.

However, when the above configuration is adopted, the positional relationship between the fluid inlet and the air outlet is limited. Therefore, it has been found that when emphasis is placed on exhaust, there is a problem that constraints such as a lower degree of freedom in arrangement of the discharge device arise.

Therefore, it is an object of the present invention to provide a discharge device and a discharge system that can sufficiently perform exhaust in a fluid storage portion through which fluid flows in and out in the housing, and that have a high degree of freedom in the positional relationship between the fluid inlet and the air discharge portion. .

(1) The discharge device of the present invention provided in order to solve the above-mentioned technical problems can discharge the fluid introduced into the fluid storage part provided inside the casing, and is characterized in that it has a fluid introduction part for feeding the fluid The storage part introduces fluid; the internal components are disposed inside the fluid storage part; and the air discharge part discharges air from the inside of the fluid storage part to the outside; the fluid introduction part has a A connected fluid inlet; the air discharge part has an air discharge passage communicating with the fluid storage part; the air discharge passage has an air discharge part inlet and an air discharge part outlet, and the air discharge part inlet is separated by the The inner part communicates with the fluid receiving part on the opposite side of the fluid inlet, and the outlet of the air discharge part is connected to the inlet of the air discharge part in the flow channel. The fluid storage part communicates with the outside of the fluid storage part at a position staggered in either the circumferential direction or the axial direction or both.

The discharge device of the present invention has a fluid inlet and an air outlet inlet, and the fluid inlet is provided to communicate with the fluid inlet. In addition, the inlet of the air discharge part is provided on the opposite side of the fluid inlet through the internal member arranged inside the fluid storage part. Therefore, when air flows into the fluid storage part from the fluid inlet together with the fluid, the air is discharged from the fluid storage part through the air discharge part inlet located on the opposite side across the internal components. Since the discharge device of the present invention adopts such a configuration, the air flowing into the fluid storage part can be sufficiently discharged through the inlet of the air discharge part.

In addition, in the discharge device of the present invention, the air discharge unit includes an air discharge passage as a passage for air discharged through the inlet of the air discharge unit. Furthermore, the air discharge path has an air discharge outlet communicating with the outside of the fluid storage part at a position shifted from the air discharge part inlet in either or both of the circumferential direction and the axial direction of the fluid storage part. Therefore, the spouting device of the present invention can not be limited by the position of the inlet of the air discharge part, and the outlet of the air discharge part can be arranged to be staggered from the inlet of the air discharge part in either or both of the circumferential direction and the axial direction of the fluid storage part. at the location.

(2) The above-mentioned discharge device of the present invention is characterized in that the internal member is a shaft-shaped member extending in the axial direction inside the fluid storage portion.

According to the above-mentioned configuration, the air flowing into the fluid storage part can be discharged around the inner member arranged in the axial direction extending at the axial center position of the fluid storage part, and reach the air provided on the opposite side of the fluid introduction port. Part of the entrance way to move, so that it can be fully discharged.

(3) In the discharge device of the present invention described above, the inlet of the air discharge unit is provided at a position above the direction of gravity when the fluid is discharged with respect to the fluid inlet.

According to the above configuration, the air flowing into the fluid storage unit can be more reliably discharged to the outside of the fluid storage unit.

(4) The above-mentioned discharge device of the present invention is characterized in that the inflow direction of the air entering the air discharge part from the fluid storage part through the air discharge part inlet is the same as the discharge direction of the air discharged from the air discharge part outlet. Directions are in a cross or twisted relationship.

According to this configuration, the air entering the fluid storage portion from the fluid introduction portion can be discharged in a direction different from the position on the opposite side of the fluid introduction portion.

(5) The above-mentioned discharge device of the present invention is characterized in that at least a part of the air discharge part is detachably combined with a plurality of constituent parts; All of them are separated from other components to open the air discharge passage.

According to this configuration, part or all of the components constituting the air discharge unit can be separated from other components to open the air discharge passage, and the inside of the air discharge passage can be cleaned or maintained.

(6) The above-mentioned discharge device of the present invention is characterized in that it has: a drive unit; a rotor formed of a male screw type shaft; a stator whose inner peripheral surface is formed as a female screw type, and the rotor can be inserted into the stator. and a connection part that connects the driving part and the rotor in a manner capable of transmitting power, so that the rotor can revolve around the inner peripheral surface of the stator while rotating inside the stator performing eccentric rotation; the connecting portion is disposed inside the fluid storage portion as the internal component.

According to this configuration, despite the existence of the connecting portion for connecting the driving portion and the rotor in a power-transmittable manner, the fluid storage portion can be sufficiently exhausted, and the positional relationship between the fluid inlet port and the air discharge portion can be provided. Dispensing device with high degree of freedom.

(7) The discharge system of the present invention provided in order to solve the above-mentioned technical problems is characterized in that a plurality of the above-mentioned discharge devices of the present invention are arranged such that the housings are close to each other; The fluid introduction part and the air discharge part are disposed at positions away from casings of other adjacent discharge devices.

According to this configuration, it is not necessary to adjust the interval between the plurality of discharge devices in consideration of the presence of the fluid inlet or the air discharge unit, and accordingly, the housings of the discharge devices can be arranged very close to each other. Therefore, according to the above configuration, it is possible to provide a discharge system capable of sufficiently exhausting and having a compact structure.

According to the present invention, it is possible to provide a discharge device and a discharge system capable of sufficiently exhausting the fluid storage portion through which fluid flows into and out of the housing, and having a high degree of freedom in the positional relationship between the fluid inlet and the air discharge portion.

10: Spit out system

12: The first system

14:Second system

20:Spitting device

20A: Discharging device

20B: Discharging device

40: Hybrid unit

42: Mixer Department

50: shell

50a: first housing part

50b: second housing part

50c: the third housing part

50d: the fourth shell part

52: rotor

54: Stator

55: storage pump mechanism

56: Power transmission mechanism

60: the first opening

62: Second opening

66: inner peripheral wall

68: Through hole

70: Outer peripheral surface

72: Fluid delivery path

74: drive department

76: Power transmission department

78: Connecting part (internal part)

100: Air discharge part

102: the first sealing support component

104: the second sealing support component

106: sealing parts

107: sealing parts

108: Fluid introduction part

108a: Fluid inlet

110: Fluid storage unit

120: Embedded part

122: The first hole department

124: Bottom

126: Groove

130: Air discharge path

132: Circumferential discharge path

134: Air discharge part inlet

136: Axial discharge path

138: Air discharge part outlet

140: sealing parts

150: sunken

152: wall

154: Gap

210: spit out system

220: spit device

230: shell

230a: top face

230b: through hole

232: spit out

234: Fluid storage unit

236 fluid introduction part

240: needle (internal part)

250: Actuator

260: Air discharge part

262: Inlet of air discharge part

264: Air discharge part outlet

266: Air outlet

268: Axial discharge path

270: Circumferential discharge path

272:Sealing parts

320: spit device

330: shell

330a: top face

330b: through hole

332: spit out

334: Fluid storage unit

336: Fluid introduction part

340: screw (internal components)

342:Rotary axis

344: rotating blade

350: motor

360: Air discharge part

362: Inlet of air discharge part

364: Air discharge part outlet

366: Air outlet

372: sealing parts

W: Workpiece

(a) of FIG. 1 is a front view showing a discharge system according to an embodiment of the present invention, and (b) is a right side view of the discharge system shown in (a).

Fig. 2 is a cross-sectional view showing the structure of a discharge device according to an embodiment of the present invention.

Fig. 3 is an enlarged view of part A of Fig. 2 .

Fig. 4 is a B-B sectional view of Fig. 3 .

Fig. 5 is a perspective view showing a first casing part constituting the ejection device of Fig. 2 .

Fig. 6 is a side view showing a first case portion and a first seal support member according to a modified example.

In Fig. 7, (a) is a top view of the first casing part in Fig. 6, and (b) is a top view showing a state in which the first sealing support member shown in Fig. 6 is inserted into the first casing part in Fig. 6 .

FIG. 8 is an explanatory diagram showing the configuration of a discharge device according to a first modification.

FIG. 9 is an explanatory diagram showing a modified example of a discharge system configured using the discharge device of FIG. 8 .

FIG. 10 is an explanatory diagram showing the configuration of a discharge device according to a second modification.

Hereinafter, a discharge system 10 and a discharge device 20 according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, in the following description, first, the configuration of the discharge system 10 and the discharge device 20 will be described, and then the air discharge unit 100 included in the discharge device 20 and its related configuration, and the arrangement of the discharge device 20 in the discharge system 10 will be described. 1. The operation process of the exhaust operation in the discharge device 20 will be described in detail.

"Construction of Dispensing System 10 and Dispensing Device 20"

The discharge system 10 supplies, mixes, and discharges a fluid such as a two-component adhesive composed of a main agent and a curing agent using, for example, a plurality of systems (two systems of the first system 12 and the second system 14 in this embodiment). As shown in FIG. 1 , the discharge system 10 includes discharge devices 20 , 20 and a mixing unit 40 .

Regarding the discharge device 20 , the discharge device used in the first system 12 and the discharge device used in the second system 14 are the same. The discharge device 20 is constituted by a rotary positive displacement pump. In this embodiment, as shown in FIG. 2 , the discharge device 20 is constituted by a so-called uniaxial eccentric screw pump. The discharge device 20 is configured such that a rotor 52 , a stator 54 , a power transmission mechanism 56 , and the like are housed inside a casing 50 . The casing 50 is a cylindrical member made of metal, and has a first opening 60 on one end side in the longitudinal direction. In addition, a second opening portion 62 is provided on the outer peripheral portion of the housing 50 . The second opening 62 communicates with the inner space of the housing 50 at the middle portion in the longitudinal direction of the housing 50 .

The first opening 60 and the second opening 62 are portions functioning as a suction port and a discharge port of the uniaxial eccentric screw pump forming the discharge device 20 , respectively. In the discharge device 20 , by rotating the rotor 52 forward, the first opening 60 can function as a discharge port and the second opening 62 can function as a suction port. In addition, for maintenance and other purposes, by rotating the rotor 52 in the reverse direction, the first opening 60 can be used as a suction The inlet and the second opening 62 function as a discharge port to perform cleaning of the internal space of the casing 50 and the like.

The stator 54 is formed of an elastic body such as rubber, or resin, and has a substantially cylindrical appearance. The inner peripheral wall 66 of the stator 54 is formed with n+1 (n is a natural number) single-stage or multi-stage female thread shapes. In this embodiment, the stator 54 is formed in the shape of two multistage female threads. In addition, the through-hole 68 of the stator 54 is formed such that its cross-sectional shape (opening shape) is substantially oblong when viewed at any position in the longitudinal direction of the stator 54 .

The rotor 52 is a shaft body made of metal, and is formed in the shape of n single-stage or multi-stage male threads. In this embodiment, the rotor 52 is formed in the shape of one eccentric male thread. The rotor 52 is formed such that its cross-sectional shape is substantially circular when viewed at any position in the longitudinal direction. The rotor 52 is inserted into the through-hole 68 formed in the stator 54 , and can freely rotate eccentrically in the through-hole 68 .

When the rotor 52 is inserted into the stator 54, the outer peripheral surface 70 of the rotor 52 and the inner peripheral surface 66 of the stator 54 are in close contact with the tangent of both, and the inner peripheral surface 66 of the stator 54 and the outer peripheral surface of the rotor 52 A fluid delivery path 72 (cavity) is formed between the faces 70 . The fluid delivery path 72 extends helically along the longitudinal direction of the stator 54 or the rotor 52 .

When the rotor 52 is rotated in the through-hole 68 of the stator 54 , the fluid transfer path 72 advances in the longitudinal direction of the stator 54 while rotating in the stator 54 . Therefore, when the rotor 52 is rotated, fluid can be sucked into the fluid delivery passage 72 from one end side of the stator 54, and the fluid can be sent toward the other end side of the stator 54 while being enclosed in the fluid delivery passage 72. It is discharged at the other end side of the stator 54 .

The power transmission mechanism 56 is used to transmit power from the drive unit 74 to the above-mentioned rotor 52 . The power transmission mechanism 56 has a power transmission portion 76 and a connection portion 78 . The power transmission part 76 is provided on one end side of the casing 50 in the longitudinal direction. In addition, the connection part 78 is provided in the middle part. The connection part 78 is a part which connects the power transmission part 76 and the rotor 52 so that power can be transmitted. Accordingly, the rotor 52 can rotate eccentrically along the inner peripheral surface of the stator 54 while rotating on its own inside the stator 54 . Connecting part 78 is made of existing known universal Joints, connecting rods, screws, etc. Therefore, the connecting portion 78 can transmit the rotational power generated by operating the driving portion 74 to the rotor 52 , thereby causing the rotor 52 to rotate eccentrically.

The mixing unit 40 mixes and discharges the fluids supplied from the discharge devices 20 , 20 . The mixing unit 40 includes a mixer unit 42 . The mixer unit 42 is constituted by, for example, a static mixer, a dynamic mixer including a drive screw which receives power from a drive source such as a motor and operates, or the like. In this embodiment, the mixer unit 42 is constituted by a static mixer.

"About the Air Exhaust Unit 100 and its Associated Structure"

The discharge device 20 includes an air discharge unit 100 for discharging air flowing in from the outside together with the fluid. Hereinafter, the air discharge unit 100 and its related configuration will be described in detail with reference to the drawings.

As shown in FIGS. 2 and 3 , the air discharge unit 100 is provided in a portion of the housing 50 of the discharge device 20 that accommodates the power transmission mechanism 56 . Specifically, the case 50 has a first case part 50a, a second case part 50b, a third case part 50c, and a fourth case part 50d. In addition, the case 50 has a first seal support member 102 between the first case part 50a and the second case part 50b, and a second seal between the second case part 50b and the third case part 50c. Support member 104 .

The first case part 50a and the second case part 50b are parts that accommodate the power transmission mechanism 56 and the drive part 74, respectively. The third case part 50c is a part provided between the first case part 50a and the second case part 50b. In addition, the fourth case portion 50 d is a portion that accommodates the pump mechanism 55 composed of the rotor 52 and the stator 54 . The air discharge portion 100 is provided in a portion forming the first case portion 50 a among those constituting the case 50 .

The fluid storage part 110 which accommodates the fluid supplied from the outside is provided in the inside of the 1st case part 50a. The fluid storage part 110 communicates with the fourth case part 50 d that houses the pump mechanism 55 , and can supply the fluid supplied to the first case part 50 a to the fluid delivery path 72 . Moreover, the connection part 78 (internal member) is arrange|positioned inside the fluid storage part 110. As shown in FIG. The connection portion 78 is a columnar portion arranged at a substantially axial center of the fluid storage portion 110 , and is arranged to extend along the axial direction.

In addition, the end portion of the first case portion 50 a on the third case portion 50 c side is sealed by the first seal support member 102 and the seal member 106 . Specifically, the first seal support member 102 is a ring-shaped member. The first sealing support member 102 is inserted into the insertion portion 120 formed by drilling the contact portions of the first case portion 50a and the third case portion 50c. In addition, the seal member 106 is fitted into an opening provided at the axial center position of the first seal support member 102 . The shaft-shaped power transmission portion 76 is inserted into the seal member 106 . Thereby, the power transmission part 76 is rotatably supported at one end side, and the end part by the side of the 3rd case part 50c of the 1st case part 50a is closed. In addition, the power transmission part 76 is rotatably supported on the other end side (the drive part 74 side) through the second seal support member 104 and the seal member 107 provided between the second case part 50b and the third case part 50c.

As shown in FIG. 5 etc., the fluid introduction part 108 is provided in the peripheral part of the 1st case part 50a. The fluid introduction part 108 has a fluid introduction port 108 a communicating with the inside and outside of the fluid storage part 110 . Accordingly, the fluid can be introduced into the fluid storage unit 110 through the fluid introduction unit 108 .

The air discharge part 100 is a part that discharges air from the inside of the fluid storage part 110 to the outside. The air discharge part 100 is formed by detachably combining the first seal support member 102 to the first case part 50a. Specifically, the air discharge unit 100 has an air discharge passage 130 communicating with the fluid storage unit 110 . The air discharge path 130 is formed by the groove 126 formed on the bottom surface 124 of the first hole portion 122 constituting the insertion portion 120 in the first case portion 50 a and the first seal support member 102 .

As shown in FIG. 5 and the like, the groove 126 is formed in a groove shape in which a middle portion is opened to the outside. The air discharge passage 130 forms a circumferential discharge passage 132 through which air can pass by closing the opening of the groove 126 with the first sealing support member 102 fitted into the embedded portion 120 (see FIG. 4 and the like). In addition, as shown in FIG. 5 , the groove 126 can be opened to the outside by removing the first seal support member 102 in the circumferential discharge passage 132 . The circumferential discharge path 132 is formed to extend in the circumferential direction of the fluid storage part 110 . In this embodiment, the circumferential discharge passage 132 extends to form an arc with a central angle of about 90 degrees along the circumferential direction of the fluid storage part 110 . In addition, the air discharge passage 130 has an air discharge inlet 134 and an air discharge The outlet 138 and the air outlet inlet 134 communicate with one end side of the circumferential outlet passage 132 , and the air outlet outlet 138 communicates with the circumferential outlet passage 132 via the axial outlet passage 136 communicating with the other end side of the circumferential outlet passage 132 .

The air discharge unit inlet 134 is an opening communicating with the fluid storage unit 110 at one end side of the circumferential discharge passage 132 . The air discharge unit inlet 134 is opened on the opposite side of the fluid introduction unit 108 via the columnar connection unit 78 provided inside the fluid storage unit 110 . That is, the air discharge unit inlet 134 is provided at a position facing the fluid introduction unit 108 in the circumferential direction. In addition, the air discharge unit inlet 134 is provided at a position on the upper side in the direction of gravity (opposite side to the pump mechanism 55/drive unit 74 side) with respect to the fluid introduction unit 108 when the fluid is discharged.

The axial discharge passage 136 is a passage communicating with the other end side of the circumferential discharge passage 132 . The axial discharge passage 136 is formed by providing a hole extending in the axial direction in the first case portion 50 a on the other end side of the circumferential discharge passage 132 .

The air discharge part outlet 138 is formed through an opening formed so as to communicate with the end portion of the axial discharge passage 136 . The air discharge part outlet 138 is formed by providing a hole extending in a direction intersecting the axial direction (in this embodiment, a substantially perpendicular direction/radial direction of the fluid storage part 110 ) in the first case part 50 a. A female thread is formed on the inner peripheral surface of the air discharge part outlet 138 . Accordingly, the air discharge part outlet 138 can be opened or closed by attaching or detaching the seal member 140 having the threaded shaft having a male thread on the outer peripheral portion with respect to the air discharge part outlet 138 .

The air discharge part outlet 138 is provided at a position on the other end side of the circumferential discharge passage 132 having the air discharge part inlet 134 on one end side. Therefore, the air discharge part outlet 138 is located at a position deviated from the air discharge part inlet 134 in the circumferential direction of the fluid storage part 110 . In addition, the air discharge portion outlet 138 is provided so as to communicate with the end portion of the axial discharge passage 136 formed along the axial direction of the fluid storage portion 110 on the other end side of the circumferential discharge passage 132 . Therefore, the air discharge part outlet 138 is located at a position deviated from the air discharge part inlet 134 in the axial direction.

Each part of the air discharge path 130 is configured such that the inflow direction of the air entering the air discharge part 100 from the fluid storage part 110 through the air discharge part inlet 134 and the discharge direction of the air discharged from the air discharge part outlet 138 are twisted. In addition, each part is configured such that the introduction direction of the air introduced into the fluid storage part 110 together with the fluid from the fluid introduction part 108 and the discharge direction of the air discharged from the air discharge part outlet 138 are twisted.

"About the configuration of the dispensing device 20 in the dispensing system 10"

As described above, the discharge system 10 includes the discharge device 20 for the first system 12 (hereinafter also referred to as "discharge device 20A") and the discharge device 20 for the second system 14 (hereinafter also referred to as "discharge device 20B"). As described above, in the discharge device 20, the fluid introduction part 108 and the air discharge part outlet 138 are located at positions deviated from each other in the circumferential direction (in this embodiment, positions separated by approximately 90 degrees).

Therefore, as shown in FIG. 1 , the dispensing system 10 is arranged such that the outlets 138 and 138 of the air discharge units of the dispensing devices 20A and 20B face the front side, and the fluid introduction part 108 of the dispensing device 20A on the left side faces the dispensing side when viewed from the front. On the left side of the system 10 , the fluid introduction part 108 of the discharge device 20B located on the right side faces the right side of the discharge system 10 . Thereby, the gap between the discharge devices 20A, 20B can be kept to a minimum, and fluid can be introduced into the discharge devices 20A, 20B or exhausted without removing the discharge devices 20A, 20B from the discharge system 10 .

"About the operation process of the exhaust operation in the discharge device 20"

The exhaust operation when introducing the fluid into the discharge device 20 can be performed, for example, in the following procedure. Specifically, in a state where the fluid storage portion 110 formed in the casing 50 is empty, the discharge device 20 is connected to a fluid supply source including a fluid tank or a supply pump through a flow path connected to the fluid introduction portion 108 . . When the exhaust operation is performed, the air discharge passage 130 is opened to the atmosphere by removing the sealing member 140 attached to the outlet 138 of the air discharge part. When the fluid is introduced from the fluid introduction part 108 in this state, the fluid flows in so as to surround the cylindrical connection part 78 arranged inside the fluid storage part 110 . Thereby, the fluid storage part 110 is filled with fluid.

During the process of introducing the fluid into the fluid storage part 110 as described above, the air flowing into the fluid storage part 110 together with the fluid surrounds the connection part 78 and flows in through the air discharge part inlet 134 on the opposite side of the fluid introduction part 108 . Air discharge path 130 . The air flowing into the air discharge passage 130 reaches the air discharge part outlet 138 via the circumferential discharge passage 132 and the axial discharge passage 136 , and is discharged to the outside of the fluid storage part 110 . In this embodiment, since the air discharge part inlet 134 is located on the opposite side of the fluid introduction part 108 across the axis forming the connection part 78, and is located near the uppermost part in the direction of gravity of the fluid storage part 110 (approximately around the uppermost part of the first seal support member 102). directly below), therefore, the air will not stay in the fluid storage part 110, and the entire fluid storage part 110 will be in a state filled with fluid. In addition, the fourth case part 50d communicating with the first case part 50a forming the fluid storage part 110 is sealed by a seal line formed by close contact between the rotor 52 and the stator 54 constituting the pump mechanism 55 . Therefore, in the discharge device 20 , there is no entry and exit of air on the side of the pump mechanism 55 .

When the air has been sufficiently exhausted from the fluid storage unit 110 as described above, the sealing member 140 is attached to the air discharge unit outlet 138 to seal the air discharge passage 130 . Then, the discharge device 20 is operated, and the fluid delivery path 72 (cavity) formed in the stator 54 is also filled with the fluid. In addition, the fluid is discharged (discarded) from the fluid delivery path 72 as necessary. As a result, the discharge operation of the discharge device 20 is completed, and the discharge of the fluid becomes ready.

According to the discharge device 20 according to the above-mentioned embodiment and the discharge system 10 using the discharge device, the following effects (1) to (8) can be obtained.

(1) The discharge device 20 of the present embodiment has the fluid inlet 108 a and the air discharge unit inlet 134 , and the fluid inlet 108 a is provided so as to communicate with the fluid storage unit 110 . In addition, the air discharge unit inlet 134 is provided on the opposite side of the fluid introduction port 108 a across the connection portion 78 arranged inside the fluid storage unit 110 . Therefore, when air flows into the fluid storage part 110 from the fluid inlet 108 a together with the fluid, the air is discharged from the fluid storage part 110 through the air discharge part inlet 134 on the opposite side across the connection part 78 . The truth Since the discharge device 20 according to the embodiment adopts such a configuration, the air flowing into the fluid storage part 110 can be sufficiently discharged through the air discharge part inlet 134 .

(2) In the discharge device 20 of the present embodiment, the air discharge unit 100 includes the air discharge passage 130 as a passage for the air discharged through the air discharge unit inlet 134 . Furthermore, the air discharge passage 130 has an air discharge part communicating with the outside of the fluid storage part 110 at a position offset from the air discharge part inlet 134 in either or both of the circumferential direction and the axial direction of the fluid storage part 110. Exit 138. Therefore, in the discharge device 20 of this embodiment, the air discharge part outlet 138 can be provided in either or both of the circumferential direction and the axial direction of the fluid storage part 110 without being restricted by the position of the air discharge part inlet 134. The position where the inlet 134 of the air discharge part is staggered.

(3) In the discharge device 20 of the present embodiment, the connection portion 78 has a shaft shape extending in the axial direction of the fluid storage unit 110 as an internal member disposed inside the fluid storage unit 110 . Due to such a configuration, the air flowing into the fluid storage part 110 can surround the outer circumference of the connecting part 78 arranged at the axial center position of the fluid storage part 110 extending in the axial direction, and reach the fluid inlet provided at the fluid introduction port. The air discharge part inlet 134 on the opposite side to 108a moves so that it can be fully discharged.

In addition, in this embodiment, an example in which the connecting portion 78 is used as an internal member was shown, but the present invention is not limited thereto, and various members arranged inside the fluid storage unit 110 may be used as an internal member.

(4) In the discharge device 20 of the present embodiment, the air discharge unit inlet 134 is provided at a position on the upper side in the direction of gravity when the fluid is discharged with respect to the fluid introduction port 108 a. Thus, the discharge device 20 can more reliably discharge the air flowing into the fluid storage unit 110 to the outside of the fluid storage unit 110 . In addition, in this embodiment, although the example which provided the air discharge part inlet 134 at the upper side in the direction of gravity with respect to the fluid introduction port 108a was shown, this invention is not limited to this. For example, when sufficient exhaust can be achieved without placing the air discharge part inlet 134 on the upper side in the direction of gravity with respect to the fluid inlet 108a, or when other effects are prioritized, the air discharge part inlet 134 can also be placed It is located at the same position in the direction of gravity as the fluid introduction port 108a, or a position lower than that in the direction of gravity.

(5) In the discharge device 20 described above, the inflow direction of the air entering the air discharge unit 100 from the fluid storage unit 110 through the air discharge unit inlet 134 and the discharge direction of the air discharged from the air discharge unit outlet 138 are twisted. Thereby, the discharge device 20 can discharge the air entering the fluid storage part 110 from the fluid introduction part 108 in a direction different from the position on the opposite side of the fluid introduction part 108 .

In addition, in this embodiment, an example of the discharge device 20 is shown in which the inflow direction of the air entering the air discharge part 100 from the fluid storage part 110 and the discharge direction of the air discharged from the air discharge part outlet 138 are twisted. However, even if the configuration of the discharge device 20 is changed so that two directions intersect, for example, the same effect can be expected.

(6) In the above-mentioned discharge device 20 of the present embodiment, at least a part of the air discharge unit 100 is detachably combined with a plurality of constituent components, and a part or all of the constituent components constituting the air discharge unit 100 are separated from other components. The components are separated, so that the air discharge path 130 is opened. Specifically, the air discharge part 100 is formed by detachably combining the first seal support member 102 to the first case part 50a. As a result, the discharge device 20 can separate the first seal support member 102 from the first case portion 50 a to open the air discharge passage 130 to clean or perform maintenance on the inside of the air discharge passage 130 .

In addition, in this embodiment, the discharge device 20 that can open the air discharge passage 130 by separating part or all of the components constituting the air discharge unit 100 from other components is exemplified, but the present invention is not limited to this. When cleaning and maintenance of the air discharge passage 130 can be performed by other methods, or when disassembly and cleaning are not considered, it is not necessary to form a detachable structure as described above.

In addition, in this embodiment, it is shown that an arc-shaped groove 126 is provided on the first scalloped hole 122 of the first housing part 50a, and the first sealing support embedded in the first scalloped hole 122 part 102 closes the open portion of the groove 126 to form an example of the circumferential exhaust passage 132 through which air can pass, but the present invention is not limited thereto. For example, as shown in FIG. 6 or FIG. 7 , instead of the groove 126, an arc-shaped depression 150 may be provided on the top surface side and the fluid receiving portion 110 side of the first hole portion 122 of the first housing portion 50a, Also, an arc-shaped wall 152 is provided on the side of the first seal support member 102 , and a gap 154 corresponding to the groove 126 is formed between the first seal support member 102 by fitting the first seal support member 102 into the first hole 122 . Even when such a configuration is employed, the same effects as those of the above-described embodiment can be obtained.

(7) The discharge device 20 of the above-mentioned present embodiment is provided with: a driving part 74, a rotor 52 composed of a male screw type shaft body, a stator 54 through which the rotor 52 can be inserted and whose inner peripheral surface is formed as a female screw type, and a connecting rod. part 78, the connecting part 78 connects the driving part 74 and the rotor 52 in a manner capable of transmitting power, so that the rotor 52 can rotate eccentrically along the inner peripheral surface of the stator 54 while rotating inside the stator 54, Furthermore, the connection part 78 is arranged inside the fluid storage part 110 as an internal component. Thus, despite the presence of the connecting portion 78 for connecting the driving portion 74 and the rotor 52 in a power-transmittable manner, the discharge device 20 can sufficiently exhaust the fluid storage portion 110, and the fluid inlet 108a and the air discharge portion The degree of freedom of the positional relationship of 100 is high. In addition, in the present embodiment, an example in which the discharge device 20 is a uniaxial eccentric screw pump is shown, but the present invention is not limited thereto. Spit device.

(8) In the above-mentioned dispensing system 10, the two dispensing devices 20, 20 are arranged in such a manner that the casings 50 are close to each other, and the fluid introduction part 108 and the air discharge part 100 of each dispensing device 20 are arranged far away from the other dispensing parts that are close together. The position of the housing 50 of the device 20. Thus, the discharge system 10 does not need to adjust the distance between the plurality of discharge devices 20 in consideration of the presence of the fluid inlet 108 a or the air discharge unit 100 , and accordingly, the casings 50 of the discharge devices 20 can be arranged very close to each other. Therefore, the above-mentioned discharge system 10 can sufficiently discharge air, and can also be made compact.

In addition, in this embodiment, the example which constructed the discharge system 10 using the two discharge apparatuses 20 and 20 was illustrated, However, This invention is not limited to this, You may provide more discharge apparatuses 20. in addition, In the present embodiment, a discharge system that mixes and discharges a fluid such as a two-component adhesive is exemplified as the discharge system 10 , but the present invention is not limited thereto. For example, the discharge system 10 may not include the mixing unit 40 , and fluids may be individually discharged from the respective discharge devices 20 , and the like. In addition, in this embodiment, an example in which the discharge device 20 is used in the discharge system 10 is shown, but the present invention is not limited thereto, and the discharge device 20 may be used as a single body.

"First Variation"

In the above-mentioned embodiment, the example in which the air discharge part 100 is provided in the discharge device 20 which consists of a uniaxial eccentric screw pump was shown, but this invention is not limited to this. For example, like the discharge device 220 shown in FIG. 8 , an air discharge unit 260 having the same configuration as the air discharge unit 100 of the discharge device 20 may be provided in a needle valve type discharge device. Hereinafter, the configuration of the discharge device 220 will be described. In addition, in the following description, the same code|symbol is attached|subjected to the same structure as the said embodiment, and detailed description is abbreviate|omitted.

The discharge device 220 has a housing 230 , a needle 240 , an actuator 250 , and an air discharge unit 260 . In the discharge device 220, the casing 230 corresponds to the casing 50 of the above-mentioned embodiment. In the illustrated state, a discharge port 232 is provided at a position on the lower end side of the casing 230 and communicates with the outside. In addition, a top surface portion 230 a is provided on the upper end side of the housing 230 . Thereby, the fluid storage part 234 which can accommodate a fluid is formed inside. In addition, a fluid introduction portion 236 corresponding to the fluid introduction portion 108 of the above-mentioned embodiment is provided on the outer peripheral portion of the housing 230 . The fluid introduction part 236 communicates with the fluid storage part 234 on the upper end side of the casing 230 .

The needle 240 can advance or retreat in the axial direction through the insertion hole 230b provided on the top surface portion 230a of the housing 230 . The discharge device 220 can block the discharge port 232 by changing the state where the tip of the needle 240 is inserted into the discharge port 232 . In addition, the discharge device 220 may open the discharge port 232 by removing the tip of the needle 240 from the discharge port 232 . The needle 240 is an internal member arranged to extend in the axial direction in the fluid storage portion 234 .

The actuator 250 is disposed on the base end side of the needle 240 (upper side of the top surface portion 230a in the illustrated state). The actuator 250 is connected to the needle 240 and can move the needle 240 forward or backward in the axial direction.

The air discharge unit 260 corresponds to the air discharge unit 100 of the above-mentioned embodiment. The air discharge unit 260 is formed by providing a passage corresponding to the above-mentioned air discharge passage 130 in the casing 230 . Specifically, the air discharge unit 260 has an air discharge passage 266 having an air discharge unit inlet 262 at one end thereof and an air discharge unit outlet 264 at the other end thereof. The air discharge unit inlet 262 and the air discharge unit outlet 264 correspond to the above-mentioned air discharge unit inlet 134 and the air discharge unit outlet 138 , respectively.

The air discharge part inlet 262 is opened so as to communicate with the fluid storage part 234 . In this modified example, the air discharge portion inlet 262 is opened on the opposite side of the fluid introduction portion 236 via the needle 240 as an internal member. That is, the air discharge portion inlet 262 is located at a position shifted from the fluid introduction portion 236 in the circumferential direction of the fluid storage portion 234 . In addition, the air discharge part inlet 262 is located at a position shifted from the fluid introduction part 236 in the axial direction of the fluid storage part 234 (a position higher than the fluid introduction part 236 in this modification).

Moreover, the air discharge part outlet 264 opens so that it may communicate with the exterior of the fluid storage part 234 (casing 230). The air discharge part outlet 264 is provided at a position deviated to the axially downward side with respect to the fluid introduction part 236 . The air discharge part outlet 264 can be opened or closed by attaching or detaching a sealing member 272 similar to the sealing member 140 .

The air discharge path 266 is formed in the casing 230 so as to connect the above-mentioned air discharge part inlet 262 and the air discharge part outlet 264 . In the illustrated example, the air discharge passage 266 has an axial discharge passage 268 extending in the axial direction from the air discharge part inlet 262 and a circumferential discharge passage 270 formed so as to extend from the air discharge part inlet 262 . The end portion of the axial discharge path 268 extends in the circumferential direction of the fluid storage portion 234 (housing 230 ) so as to reach the air discharge portion outlet 264 .

By adopting the configuration of the discharge device 220 of this modified example, the same effects as (1) to (6) of the discharge device 20 of the above-mentioned embodiment can be obtained. In addition, as shown in Figure 9, through A discharge system 210 is constructed in which a plurality of (four in the illustrated example) discharge devices 220 are arranged side by side, and fluid can be discharged from each discharge device 220 to the workpiece W. FIG. According to such a discharge system 210, the same effect as (8) of the discharge system 10 of the said embodiment can be acquired.

In addition, in this modified example, an example in which the discharge device 220 is a needle valve type discharge device was shown, but the present invention is not limited thereto. For example, the same configuration as that of the discharge device 220 can be employed in a spray dispenser, a piston dispenser, or the like.

"Second Variation"

In the first modified example described above, the needle-type discharge device 220 was illustrated, but the present invention is not limited thereto. For example, a screw type discharge device 320 shown in FIG. 10 may be used. Hereinafter, the configuration of the discharge device 320 will be described. In addition, in the following description, the same code|symbol is attached|subjected to the same structure as the said embodiment or the said 1st modification, and detailed description is abbreviate|omitted.

The discharge device 320 has a housing 330 , a screw 340 , a motor 350 , and an air discharge unit 360 . In the discharge device 320, the casing 330 corresponds to the casing 50 of the above-mentioned embodiment or the casing 230 of the first modified example. In the illustrated state, a discharge port 332 is provided at the lower end side of the casing 330 and communicates with the outside. In addition, a top surface portion 330 a is provided on the upper end side of the housing 330 . Thereby, the fluid storage part 334 which can accommodate a fluid is formed inside. In addition, a fluid introduction portion 336 similar to the fluid introduction portion 236 of the above-mentioned first modified example is provided on the outer periphery of the housing 330 , and communicates with the fluid storage portion 334 .

The screw 340 is formed by providing a rotating blade 344 on a rotating shaft 342 extending in the vertical direction. The rotating shaft 342 is connected to the motor 350 through the insertion hole 330 b provided on the top surface portion 330 a of the casing 330 . The screw 340 is an internal member arranged to extend in the axial direction in the fluid storage portion 334 .

The air discharge unit 360 corresponds to the air discharge unit 100 of the above-mentioned embodiment or the air discharge unit 260 of the first modified example. The air discharge part 360 is formed by providing passages corresponding to the above-mentioned air discharge passages 130 and 266 in the casing 330 . Specifically, the air discharge unit 360 has an air discharge path 366 through which the air The discharge passage 366 has an air discharge unit inlet 362 on one end side, and an air discharge unit outlet 364 on the other end side.

The air discharge part inlet 362 is opened so as to communicate with the fluid storage part 334 . In this modified example, the air discharge portion inlet 362 is opened on the opposite side of the fluid introduction portion 336 via the screw 340 as an internal component. The air discharge portion inlet 362 is located at a position offset from the fluid introduction portion 336 in the circumferential and axial directions of the fluid storage portion 334 .

Moreover, the air discharge part outlet 364 opens so that it may communicate with the exterior of the fluid storage part 334 (casing 330). The air discharge part outlet 364 is provided at a position deviated to the upper side in the axial direction with respect to the fluid introduction part 336 . The air discharge part outlet 364 can be opened or closed by attaching or detaching the sealing member 372 similar to the sealing member 140 .

The air discharge path 366 is formed in the casing 330 so as to connect the above-mentioned air discharge part inlet 362 and the air discharge part outlet 364 .

By adopting the configuration of the discharge device 320 of this modified example, the same effects as (1) to (6) of the discharge device 20 of the above-mentioned embodiment can be obtained. In addition, by arranging a plurality of discharge devices 320, the effect of (8) above can be obtained similarly to the discharge system 10 of the above-mentioned embodiment or the discharge system 210 of the first modified example.

The present invention is not limited to the contents shown in the above-mentioned embodiments and modifications, and other embodiments can be obtained based on the teaching and spirit thereof without departing from the claims. The constituent elements of the above-described embodiments can be arbitrarily selected and combined. In addition, arbitrary constituent elements of the embodiment, arbitrary constituent elements described in the claims to solve the invention, or constituent elements that are embodied in the arbitrary constituent elements described in the claims to solve the invention may be arbitrarily combined. combined composition. In this regard, it is intended to obtain a patent right in an amendment or divisional application of the present application.

(industrial availability)

The present invention can be suitably applied to all multi-liquid mixing and discharging devices that discharge a fluid that requires mixing and discharging multiple fluids, such as a two-component adhesive composed of a main agent and a curing agent.

10: Spit out system

12: The first system

14:Second system

20, 20A, 20B: spit device

40: Hybrid unit

42: Mixer Department

50: shell

74: drive department

108: Fluid introduction part

108a: Fluid inlet

138: Air discharge part outlet

140: sealing parts

Claims (7)

A dispensing device is a dispensing device that is included in a dispensing system and is capable of dispensing a fluid introduced into a fluid storage part provided inside a housing, wherein the dispensing device is characterized in that it has a fluid introduction part for The fluid storage part introduces fluid; the internal components are arranged inside the fluid storage part; and the air discharge part discharges air from the inside of the fluid storage part to the outside; the fluid introduction part has a The fluid inlet that communicates with the inside of the air outlet; the air outlet has an air outlet that communicates with the fluid storage; the air outlet has an inlet of the air outlet, an outlet of the air outlet and a sealing member, and the air outlet The inlet communicates with the fluid storage part on the opposite side of the fluid introduction port through the inner part, and the outlet of the air discharge part is in the circumferential and axial direction of the inlet of the air discharge part in the fluid storage part. To either one or both of the staggered positions, it communicates with the outside of the fluid storage part, and the sealing part can be installed or removed from the outside of the device to seal the outlet of the air discharge part; the sealing part It can also be attached or removed in a positional relationship with components other than the discharge device in the discharge system or other discharge devices. The discharge device according to claim 1, wherein the internal member is a shaft-shaped member extending axially inside the fluid storage portion. The discharge device according to claim 1 or 2, wherein the inlet of the air discharge unit is provided at a position above the direction of gravity when the fluid is discharged with respect to the fluid inlet. The dispensing device according to claim 1 or 2, wherein, The inflow direction of the air entering the air discharge part from the fluid storage part through the inlet of the air discharge part and the discharge direction of the air discharged from the outlet of the air discharge part are in a relationship of crossing or twisting. The discharge device according to claim 1 or 2, wherein at least a part of the air discharge part is detachably combined with a plurality of constituent parts; Or all of them are separated from other components to open the air discharge passage. The discharge device according to claim 1 or 2, wherein, it has: a driving part; a rotor composed of a shaft of a male screw type; a stator whose inner peripheral surface is formed as a female screw type, and the rotor can be inserted into the in the stator; and a connection part that connects the driving part and the rotor in a power-transmittable manner, so that the rotor can rotate along the inner peripheral surface of the stator while rotating inside the stator. The eccentric rotation is carried out in a manner; the connection part is disposed inside the fluid storage part as the internal component. A dispensing system, characterized in that a plurality of dispensing devices described in any one of Claims 1 to 6 are arranged such that the housings are close to each other; the fluid introduction part and the air discharge part of each dispensing device are arranged At a position away from the casings of other nearby dispensing devices.

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