JP5964790B2 - Liquid material supply equipment - Google Patents

Description

  The present invention relates to a liquid material supply apparatus for supplying a liquid material such as food material.

  Conventionally, this type of liquid material supply apparatus has a liquid material container and a metering discharge pump, and the metering discharge pump reciprocates the cylinder, a piston provided with a conduit, and the piston from the outside of the cylinder. What has the cylindrical magnet for making it move is known (for example, patent document 1).

Japanese Patent No. 2549988

  Such a fixed amount discharge pump that operates the piston by magnetic coupling is not a problem as long as the liquid material is discharged in a relatively long time. However, if the liquid material is discharged a plurality of times in a relatively short time, the liquid material Depending on the resistance, the operation of the piston could not catch up and there was a possibility that the liquid material could not be supplied satisfactorily.

  For example, when the liquid is a food material, it is desirable to remove the liquid container from the device and store it in a refrigerator or the like when not in use, in order to prevent spoilage. However, such a liquid supply apparatus does not consider removing the liquid container from the device when not in use. For example, when the liquid container is removed from the liquid supply apparatus as in Patent Document 1 together with the metering discharge pump, the liquid container may be unintentionally discharged due to the piston of the metering pump being moved by an external force. .

  An object of the present invention is to solve the above-described problems and to provide a liquid supply apparatus that can reliably supply a liquid material and that does not easily leak from the liquid container even when removed from the apparatus.

The liquid supply device according to claim 1 of the present invention is a liquid supply device having a liquid material container and a positive displacement pump attached to the liquid material container and discharging the liquid material. A bottomed outer cylinder, an inner cylinder that reciprocates in an axial direction relative to the outer cylinder, a first check valve that prevents movement of the liquid material from the outer cylinder to the liquid material container, and an external have a second check valve for preventing the inflow of air into the inner cylinder from biasing the inner cylinder, together with the connection portion to be connected to an external reciprocating mechanism is provided, above the inner cylinder always Urging means is provided, and a downward projecting portion formed substantially equal to the inner diameter of the inner cylinder is provided on the bottom surface of the outer cylinder .

Further, the liquid material supply device according to claim 2 of the present invention, in claim 1, the gap is provided between the outer tube and the inner tube, into the inner tube sealing member for sealing the gap provided Rutotomoni, characterized in that the compression coil spring is provided between the sealing member and the outer cylinder.

  In the liquid supply device according to claim 1 of the present invention, the inner cylinder of the positive displacement pump is mechanically reciprocated by an external reciprocating mechanism. Even when the liquid material is supplied a plurality of times, the liquid material can be reliably supplied.

  In addition, by providing a gap between the outer cylinder and the inner cylinder, providing a seal member for sealing the gap in the inner cylinder, and providing a compression coil spring between the seal member and the outer cylinder, With the liquid container removed from the device together with the positive displacement pump, the inner cylinder is kept retracted from the outer cylinder by the compression coil spring, so even if an external force is applied to the inner cylinder, Leakage of the liquid material can be suppressed.

  In addition, the outer cylinder is bottomed, and a protrusion that is substantially equal to the inner diameter of the inner cylinder is provided at the center of the bottom of the outer cylinder, so that the inner cylinder is retracted with respect to the outer cylinder. Since the cylinder is closed by the protrusion, it is possible to prevent the liquid material from leaking even when no external force is applied to the inner cylinder.

It is sectional drawing of the miso soup supply apparatus which has a liquid supply apparatus which shows Example 1 of this invention. It is sectional drawing of a liquid supply apparatus similarly, and an inner cylinder exists in an upper limit position. It is sectional drawing of a liquid supply apparatus similarly, and an inner cylinder exists in a lower limit position. FIG. 2 is an exploded perspective view of the positive displacement pump. FIG. 3 is a perspective view of the positive displacement pump and the liquid container before installation. It is a perspective view of the positive displacement pump and liquid container after attachment same as the above. It is a front view of the miso soup supply apparatus of the state which opened the opening-and-closing door same as the above. It is a perspective view of a miso soup supply apparatus same as the above. FIG. 2 is an exploded perspective view of the reciprocating mechanism of the liquid supply device. It is a block diagram of a miso soup supply apparatus same as the above. It is explanatory drawing which shows the hot water supply state and liquid miso supply state in the case where a hot water supply setting is standard.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 to 11 show a first embodiment. 1 is a miso soup supply device. This miso soup supply device 1 stores water and liquid miso which is a liquid substance, supplies hot water obtained by heating water and liquid miso to the vessel 2 and supplies miso soup.

  The miso soup supply apparatus 1 includes a main body 4 having a container holder 3, hot water supply means 5 for sending hot water to a container 2 placed on the container holder 3, a miso container 6 which is a liquid container, and this miso container. And a positive displacement pump 7 which is detachably attached to the miso container 6 and discharges the liquid miso in the miso container 6. The miso container 6 and the positive displacement pump 7 constitute a liquid supply device 8. In this embodiment, the term “liquid” refers to paste-like liquid miso, but the range of “liquid” includes paste-like ones as in this embodiment, as well as those with a low viscosity. Alternatively, if it can flow, it includes jelly-like and cream-like ones. In short, any liquid material that can be sent by the positive displacement pump 7 and has fluidity is included in the “liquid material” in the present invention.

  The main body 4 is made of synthetic resin and has a case shape, and is formed longer in the front-rear direction and the vertical direction than in the left-right direction. A main body front portion 11 shown in FIG. 9 is attached to the front opening portion of the main body 4, and the container rest portion 3 is detachably provided below the main body front portion 11. In this container holder 3, the eye plate 13 is detachably mounted on the upper part of the dish-shaped drop receiving part 12, and the permanent magnet 14 provided at the rear part of the container holder 3 is connected to the lower front surface of the main body front part 11. Is attached to the main body 4 in a detachable manner.

  On the lower side of the main body front portion 11, a recessed portion 15 is formed that is recessed on the rear side, and a hot water supply port 16 is exposed on the upper portion of the recessed portion 15. In addition, a mounting portion 17 for the miso container 6 is provided on the upper portion of the main body 4. An opening / closing door 18 is provided on the front side of the mounting portion 17, and when the opening / closing door 18 is closed, the front lower portion of the miso container 6 mounted on the mounting portion 17 is covered with the opening / closing door 18.

  The open / close door 18 is pivotally connected to the main body front portion 11 by a vertical hinge portion (not shown) on one side in the left-right direction and provided on the other side in the left-right direction. The lock mechanism 20 is engaged with the main body front portion 11 to maintain the closed state. Further, when the lock release button 21 provided on the other side in the left-right direction of the opening / closing door 18 is pressed and operated, the locking by the locking mechanism 20 is released and the opening / closing door 18 can be opened. When the opening / closing door 18 is opened, the miso container 6 can be removed from the mounting portion 17.

  The miso container 6 includes a bottomed rectangular tube-shaped container body 22 made of a PET bottle or the like, and a cap 24 attached to the opening 23 of the upper neck portion of the container body 22. The cap 24 includes a cap body 24A fixed to the opening 23 and a lid body 24B provided on the cap body 24A so as to be openable and closable. The lid body 24B has a hinge portion 24C on one side of the cap body 24A. Open and close by connecting. And the said volume type pump 7 is detachably attached to the said cap 24 in the state which opened the said cover body 24B and turned upside down.

  As shown in FIGS. 2 to 6 and the like, the positive displacement pump 7 includes a substantially cylindrical pump case 25, and a receiving portion 26 to which the cap main body 24 </ b> A is detachably attached is provided on the upper portion of the pump case 25. Is provided. The receiving portion 26 has a substantially cylindrical shape and is provided with a pair of left and right mounting portions 27, 27 on the outer periphery thereof. The left and right holders 28, 28 can be rotated by pivot pins 29, 29 on the mounting portions 27, 27. It is connected. The left and right holders 28 and 28 are curved, and a locking portion 30 is provided on the inner periphery of the tip of the right holder 28 on one side, and a locking receiving portion 30A is provided on the outer periphery of the tip of the left holder 28 on the other side. Is provided. Then, with the cap main body 24A inserted into the receiving portion 26, the left and right holders 28, 28 sandwich the cap main body 24A by engaging the engaging portion 30 with the engaging receiving portion 30A. The positive displacement pump 7 is attached to the lower part of the inverted miso container 6. The receiving portion 26 is provided with a notch 26K, and the hinge 24C of the lid 24B is inserted into the notch 26K. A horizontal cylindrical portion 31 that externally fits the lid 24 </ b> B protrudes from the outer periphery of the pump case 25. The holders 28 and 28 are attachment / detachment means for detachably attaching the positive displacement pump 7 to the opened cap 24.

  The positive displacement pump 7 includes an outer cylinder 32 mounted in the pump case 25, and an inner cylinder 33 reciprocatingly reciprocating in the axial direction below the outer cylinder 32 in the axial direction. The outer cylinder 32 and the inner cylinder 33 are provided concentrically. A cylinder chamber 34 is provided in the outer cylinder 32, and a gap 35 is provided between the inner peripheral surface of the cylinder chamber 34 and the outer peripheral surface of the inner cylinder 33. Further, a circumferential groove 33A is provided on the outer periphery on the upper end side of the inner cylinder 33, and a substantially ring-shaped seal member 36 is attached to the circumferential groove 33A. The seal member 36 is made of an elastic member, and has an inner cylindrical portion 36A that is fixed to the circumferential groove portion 33A, a substantially cylindrical outer cylindrical portion 36B, and a longitudinal center of the inner cylindrical portion 36A and the outer cylindrical portion 36B. A horizontal connecting portion 36C to be connected is integrally provided. As shown in FIGS. 2 to 4, etc., the outer cylinder part 36 </ b> B is formed so as to extend slightly outward from the connecting part 36 </ b> C toward both axial sides, and the outer cylinder part 36 </ b> B forms the cylinder chamber 34. The seal member 36 seals the space between the inner peripheral surface of the cylinder chamber 34 and the outer peripheral surface of the inner cylinder 33. In the mounted state, the outer peripheral surface of the inner cylinder portion 36A and the outer peripheral surface of the inner cylinder 33 are substantially flush.

  The outer cylinder 32 is provided with a first check valve 41 on the upper side of the cylinder chamber 34. The first check valve 41 is provided with an upper valve seat hole 43 communicating with the miso container 6 at the upper part of the valve chamber 42 and a receiving hole 44 communicating with the cylinder chamber 34 at the lower part of the valve chamber 42. A valve body 45 made of a spherical body is provided between the upper valve seat hole 43 and the receiving hole 44. The valve main body 45 closes the upper valve seat hole 43 in a state where it abuts on the upper valve seat hole 43. On the other hand, when the valve main body 45 is engaged with the receiving hole 44, a gap is formed between the valve main body 45 and the receiving hole 44, so that the valve chamber 42 and the cylinder chamber 34 communicate with each other. The valve body 45 is made of an elastic material such as silicone rubber. The first check valve 41 allows the flow of the liquid miso from the miso container 6 to the cylinder chamber 34 and prevents the reverse flow.

  A second check valve 51 is connected to the lower part of the inner cylinder 33. As this second check valve 51, a duckbill check valve is used. The second check valve 51 is provided with an end portion 53 in which both side surface portions 52, 52 are gradually reduced in diameter toward the distal end and closed. The end portion 53 is formed with a slit portion 54 having a negative shape as viewed from the axial direction, for example. Further, the second check valve 51 is formed with a flange portion 55 around an open end portion disposed on the proximal end side, and this flange portion 55 is formed on the lower end of the enlarged portion 33K of the inner cylinder 33. It is fixed so as to be sandwiched between the lower surface and the fixing member 56. The fixing member 56 is press-fitted into the inner periphery of the enlarged portion 33K. The second check valve 51 allows the flow of liquid miso to the outside through the inner cylinder 33 and the slit portion 54 and prevents the flow in the reverse direction.

  The second check valve 51 is made of an elastic material, and is preferably made of a material having resistance to a liquid material, particularly ethylene-propylene-diene rubber (EPDM). For example, silicone rubber (VMQ) is used. Fluorosilicone rubber (FVMQ), fluorine rubber (FKM), nitrile rubber (NBR), or hydrogenated nitrile rubber (HNBR) may be used.

  Furthermore, the inner cylinder 33 is provided with a connecting cylinder part 57 that is a connecting part having a diameter larger than that of the inner cylinder 33 below the enlarged part 33K. 92 is engaged and disengaged, and lower collar portions 58U and 58S are provided around. Further, a nozzle cylinder 59 that covers the second check valve 51 is connected to the lower part of the connection cylinder part 57, and a large-diameter fitting part 60 is provided on the upper part of the nozzle cylinder 59. 60 is detachably fitted into the connecting tube portion 57. The upper inner periphery of the nozzle cylinder 59 has an enlarged portion 61 that expands upward, and the distal end side of the second check valve 51 is accommodated in the enlarged portion 61 in a non-contact state. The inner diameter dimension of the nozzle cylinder 59 is larger than the length dimension of the slit portion 54.

  A male screw portion 62 is provided on the outer periphery of the lower portion of the outer cylinder 32, and the lower screw body 63 is fixed to the outer cylinder 32 by screwing the female screw portion 64 of the lower lid body 63 into the male screw portion 62. At the same time, the lower end of the outer cylinder 32 is closed by the lid portion 65 of the lower lid 63. An insertion hole 65 </ b> S through which the inner cylinder 33 is inserted is formed in the center of the lid portion 65. Further, a compression coil spring 66 as an upper biasing means is provided between the periphery of the insertion hole 65S on the upper surface of the lid portion 65 and the connecting portion 36C, and the inner cylinder 33 is always kept upward by the compression coil spring 66. Is being energized. In addition, as shown in FIG. 3, the said lower cover body 63 is located in the lower side of the said pump case 25 in use condition.

  A downward projecting portion 67 is provided at the center of the bottom surface portion 34 </ b> T which is the bottom portion of the cylinder chamber 34. The protrusion 67 has a cylindrical shape and is formed substantially equal to the inner diameter of the inner cylinder 33. Further, a tapered portion 67 </ b> A that decreases downward is formed on the lower end side of the protruding portion 67. As shown in FIG. 2, the protrusion 67 is inserted into the inner cylinder 33 at the upper limit position of the inner cylinder 33 to close the upper opening of the inner cylinder 33. In this case, the protrusion 67 is smoothly inserted into the inner cylinder 33 by the tapered portion 67A. The upper limit position of the inner cylinder 33 is the initial position. In addition, as shown in FIG. 3 etc., the said bottom face part 34T becomes an upper side of the outer cylinder 32 in use condition.

  A partition plate 68 that partitions the inside of the miso container 6 from the outside of the outer cylinder 32 is provided at an upper portion of the bottom surface portion 34T, and a communication hole 68R is provided in the partition plate 68, and the communication hole 68R has a second opening. Three check valves 69 are connected, and the duckbill check valve is used as the third check valve 69. Since the third check valve 69 has the same structure as the second check valve 51, the same reference numerals as those of the second check valve 51 are given to the respective parts, and the description thereof is omitted. The third check valve 69 has a tip side provided with the slit portion 54 provided on the miso container 6 side. As a result, the third check valve 69 allows the intake to the miso container 6 from the outside of the outer cylinder 32 while preventing the liquid miso in the miso container 6 from flowing out to the outside. Has been. The pump case 25 has a vent hole 25T that communicates with the communication hole 68R.

  A water tank 71 is detachably provided at the rear part of the main body 4. A tank lid 72 is detachably provided at the upper opening of the water tank 71. A water supply valve 73 is provided at the center of the bottom surface of the water tank 71, and the water supply valve 73 is closed with the water tank 71 removed from the main body 4. A hook-like locking portion 74 is provided on the front upper portion of the water tank 71, and a locking receiving portion 74 </ b> A on which the locking portion 74 is engaged and disengaged is provided on the rear surface of the main body 4.

  A tank receiving portion 75 is provided at the rear bottom portion of the main body 4, and a water supply socket 76 for connecting the water supply valve 73 is provided in the tank receiving portion 75. Then, by mounting the water tank 71 on the tank receiving portion 75 in a mounted state, the water supply valve 73 is engaged and connected to the water supply socket 76, the water supply valve 73 is opened, and the water tank 71 is opened. The water inside can be supplied into the main body 4. This water then flows to the flow meter 81.

  A solenoid pump 82 as pressure feeding means is connected downstream of the flow meter 81. The solenoid pump 82 is capable of controlling the amount of water supplied, and the flow meter 81 and the solenoid pump 82 are electrically connected to a microcontroller unit 83 which is a control means. Then, based on the flow rate obtained from the flow meter 81, control by the microcontroller unit 83 is performed so that the water supply amount of the solenoid pump 82 becomes a predetermined amount. The flow meter 81 and the solenoid pump 82 are built in the main body 4.

  A heating tank 84 is provided at substantially the center in the main body 4, and the heating tank 84 and the discharge side of the solenoid pump 82 are connected by a tube 85 serving as a flow path. The heating tank 84 is provided with an electric heater 86 for heating the water in the heating tank 84 and a temperature sensor 86S composed of a thermistor or the like. The electric heater 86 and the temperature sensor 86S are electrically connected to the microcontroller unit 83, and the hot water in the heating tank 84 is maintained at a predetermined temperature by the control of the microcontroller unit 83.

  The heating tank 84 and the decompression rectifier 87 are connected by a pipe 88, and the hot water supply port 16 is connected downstream of the decompression rectifier 87. The same amount of hot water as the amount of water sent into the heating tank 84 by the solenoid pump 82 is sent from the heating tank 84 to the decompression rectifier 87 and discharged from the hot water supply port 16. Has been. The decompression rectifier 87 has a space larger than the cross section of the pipe line 88, and the hot water pumped through the pipe line 88 is depressurized by flowing down from the inside of the pipe line 88 and being opened. Hot water flows along the inclined bottom surface 87T of the rectifier 87, and is dropped and supplied from the hot water supply port 16 to the device 2. The bottom surface 87T is formed so as to become lower from the rear side toward the front side (that is, the hot water supply port 16 side). The solenoid pump 82, the heating tank 84, the electric heater 86, and the pressure reducing rectifier 87 constitute the hot water supply means 5.

  Next, the reciprocating mechanism 91 of the positive displacement pump 7 will be described. The reciprocating mechanism 91 is provided in the main body 4 and, as shown in FIG. 9 and the like, is inserted into a lifting body 93 having a plane U-shaped arm portion 92 and to the left and right of the lifting body 93. The left and right guide rods 94, 94 and the holder 95 that fixes the upper and lower sides of the left and right guide rods 94, 94 are provided, and the holder 95 is fixed in position in the main body 4. The upper and lower portions of the vertical guide rod 94 are fixed to the fixing portions 95A and 95A of the holder 95, and the elevating body 93 moves up and down along the guide rods 94 and 94.

  A motor 96 as a drive source is fixed to the rear surface of the holder 95, and an eccentric cam 97 is connected to a rotation shaft 96A of the motor 96. The eccentric cam 97 has a disk shape, and is connected to a position where the rotation shaft 96A of the motor 96 is eccentric from the center of the cam 97. Further, a recessed cam receiving portion 98 is provided on the rear surface of the elevating body 93, and an upper surface portion 98 U and a lower surface portion 98 S of the cam receiving portion 98 are engaged with the eccentric cam 97. That is, the reciprocating mechanism 91 has a so-called Scotch yoke mechanism that converts the rotational motion of the motor 96 into reciprocating motion by the eccentric cam 97 and the cam receiving portion 98. The holder 95 is provided with a counter substrate 99, and the lift body 93 is provided with a detector 93K. The counter substrate 99 detects the detector 93K and detects the number of times the lift body 93 is moved up and down. To do. The motor 96 and the counter substrate 99 are electrically connected to the microcontroller unit 83. The microcontroller unit 83 controls the driving of the motor 96 based on the number of times of elevation detected by the counter substrate 99.

  Accordingly, when the motor 96 is driven under the control of the microcontroller unit 83, the eccentric cam 97 rotates and the rotated eccentric cam 97 engages with the cam receiving portion 98, so that the inner cylinder at the initial position is engaged. 33 descends. When the inner cylinder 33 is lowered, the first check valve 41 is opened, the cylinder chamber 34 is under negative pressure, and the liquid in the miso container 6 is closed with the second check valve 51 closed. Miso is sucked into the cylinder chamber 34. When the liquid miso in the miso container 6 is sucked and the inside of the miso container 6 becomes negative pressure, the third check valve 69 is opened, and the outside air is supplied into the miso container 6. The negative pressure in the container 6 is eliminated. When the inner cylinder 33 is lowered to the lower limit position shown in FIG. 3 and then the inner cylinder 33 is raised, the first check valve 41 is closed and the liquid miso in the cylinder chamber 34 is pressurized. The second check valve 51 is opened, and liquid miso is discharged from the second check valve 51. In this manner, the inner cylinder 33 is lowered from the upper limit position to the lower limit position and is raised from the lower limit position to the upper limit position, so that liquid miso is supplied once. The supply amount of the liquid miso at one time is a fixed amount, that is, a unit amount U.

  In the upper part of the hot water supply port 16, the main body front part 11 is provided with an opening part 11 </ b> K through which the arm part 92 is inserted. Further, the mounting portion 17 above the opening 11K is provided with an engagement receiving portion 17A for engaging and mounting the positive displacement pump 7 and the miso container 6.

  Therefore, with the open / close door 18 open, the positive displacement pump 7 and the miso container 6 are engaged and placed on the engagement receiving portion 17A, and the connecting tube portion 57 is inserted between the arm portions 92. By connecting and closing the open / close door 18, the miso container 6 can be mounted on the mounting portion 17 on the upper front side of the main body 4.

  Next, based on FIG. 10 etc., control of the said miso soup supply apparatus 1 is demonstrated. The main body 4 is provided with a power cord 101, and the miso soup supply device 1 is driven by electric power supplied from the power source 102 via the power cord 101. A power switch 103 is disposed on the lower side of the main body 4. Then, power is supplied from the power supply circuit 104 to the main board 120 on which the microcontroller unit 83 is mounted, an electric device, or the like. The power supply circuit 104 itself is also mounted on the main board 120. The microcontroller unit 83 is electrically connected to a zero-cross detection circuit 105 for obtaining a zero-cross signal as a control reference.

  The top plate 106 of the main body 4 is provided with a plurality of LEDs that are light emitting display units and a plurality of switches, and these LEDs and switches are electrically connected to the microcontroller unit. As shown in FIG. 8, the triangular miso density adjustment switch 107 and the round miso addition switch 107A, which are the switches, are arranged side by side on the left and right in the front and rear direction (front side). On the (rear side), a triangular hot water amount setting switch 108 as a switch and a round hot water addition switch 108A are arranged side by side.

  Small, medium and large light emitting sections 109S, 109M, and 109L are provided next to the miso concentration adjustment switch 107, and the concentration of miso to be supplied is adjusted by pressing the miso concentration adjustment switch 107. Can do. Specifically, the miso soup can be set to any one of “light”, “standard”, and “dark”, and the light emitting units 109S of small, medium, and large corresponding to “light”, “standard”, and “dark”. , 109M, 109L are lit and displayed by any of the plurality of LEDs 100 mounted on the main board 120.

  Large, medium and small light emitting units 110S, 110M, and 110L are provided next to the hot water amount setting switch 108, and the amount of hot water to be supplied can be adjusted by pressing the hot water amount setting switch 108. Specifically, the hot water supply amount can be set to one of “low”, “standard”, and “high” modes, and small, medium, and large light emission corresponding to “low”, “standard”, and “high”. The units 110S, 110M, and 110L are lit and displayed by any of the plurality of LEDs 100 mounted on the main board 120.

  As shown in FIG. 8, a cooking switch 111 serving as a switch is provided at the upper part of the opening / closing door 18, and the cooking switch 111 incorporates an LED 112 as a light emitting means. The main body 4 includes a buzzer 113 serving as a notification unit. The cooking switch 111 and the LED 112 are mounted on the hot water supply board 114.

  The main board 120 includes a solenoid pump control circuit 116 that drives and controls the solenoid pump 82, and the solenoid pump 82 is electrically connected to the microcontroller unit 83 via the solenoid pump control circuit 116. . The main board 120 includes a heater control circuit 117 for driving and controlling the heater 86, and the heater 86 is electrically connected to the microcontroller unit 83 via the heater control circuit 117. The main board 120 includes a motor control circuit 118 that drives and controls the motor 96, and the motor 96 is electrically connected to the microcontroller unit 83 via the motor control circuit 118.

  The main board 120 is mounted with a memory 119, and the memory 119 is electrically connected to the microcontroller unit 83. The memory 119 stores initial settings related to the driving of the miso soup supply device 1, and also stores settings made by the switches 107 and 108.

  As shown in FIG. 10, the microcontroller unit 83, the power supply circuit 104, the zero cross detection circuit 105, the heater control circuit 117, the solenoid pump control circuit 116, the motor control circuit 118, the buzzer 113, the LED 100, the switches 107, 108, 107A, and 108A. A memory 119 is provided on the main board 120.

  Hereinafter, an example of control by the microcontroller unit 83 will be described. The power cord 101 is connected to the power source 102, the power switch 103 is pressed, and the miso soup supply device 1 is turned on. When the power switch 103 is pressed, the LED 100 is turned on and the buzzer 113 sounds. In the initial setting, the concentration of miso (liquid miso amount setting) and the amount of hot water (hot water supply setting) are set to “standard”. Here, by pressing the miso concentration adjusting switch 107 and the hot water amount setting switch 108, it is possible to set the preferred miso concentration and hot water amount.

  Table 1 above shows the relationship between the hot water supply setting and the liquid miso amount setting. The amount of liquid miso is “light”, “standard”, and “dense”, and the amount of liquid miso is 10 with respect to the amount of hot water of “low”, “standard”, and “high”. .5%, 12%, and 13.5%. Further, depending on the size of the cylinder chamber 34 and the like, the positive displacement pump 7 supplies 3 grams of liquid miso, which is a predetermined amount U, to the vessel 2 at a time.

  When the production of miso soup is started, the hot water supply means 5 starts hot water supply. The hot water supply means 5 continuously supplies hot water until a set amount is reached. During this time, the liquid miso is intermittently supplied in N times (N is an integer of 2 or more). Note that the positive displacement pump 7 does not operate at the beginning of the production of miso soup. As shown in FIG. 11, when the hot water supply setting is “standard”, after the time Ti (<T−t × Nmax) has elapsed since the start of hot water supply, the positive displacement pump 7 is driven and the liquid miso is changed every time t. 3 grams each. Thus, by intermittently supplying liquid miso to the vessel 2, the miso can be uniformly dissolved in hot water. Moreover, after supplying a small amount of hot water to the vessel 2 in advance, the liquid miso is intermittently supplied little by little, so that the miso can be more easily dissolved in the hot water. In this embodiment, when the hot water supply setting is “standard”, the total hot water supply time T is 60 seconds (2.5 ml / s), and Ti is 10 seconds regardless of the liquid miso amount setting. Therefore, 25 ml of hot water is supplied to the container 2 prior to the supply of the liquid miso. If this amount of hot water is stored in the vessel 2, when the supply of the liquid miso is started by the positive displacement pump 7, the liquid miso does not directly touch the bottom of the vessel 2. Further, the amount of hot water supply per unit time is constant, and the supply time t of liquid miso every time is constant. When the liquid miso amount setting is “thin”, the positive displacement pump 7 is driven 5 times, and the liquid miso is supplied 5 times by 3 grams every time t. When the liquid miso amount setting is “standard”, the positive displacement pump 7 is driven 6 times, and the liquid miso is supplied 6 times by 3 grams every time t. Further, when the liquid miso amount setting is “dark”, the positive displacement pump 7 is driven 7 times, and the liquid miso is supplied 7 times by 3 grams every time t. That is, when the hot water supply setting is “standard”, the maximum number Nmax of supply of liquid miso is 7, and time Ti <T−7t. Therefore, regardless of the liquid miso amount setting, the supply of hot water does not end when the supply of the liquid miso ends. For this reason, hot water is supplied for a time Te (= T−Ti−t × N) even after the supply of the liquid miso. Nmax differs depending on the hot water supply setting, and is 8 when the hot water supply setting is “large” and 6 when “low”. In addition, since the amount of hot water supply per unit time is constant, the total hot water supply time T also varies depending on the hot water supply setting.

  Further, when the miso addition switch 107A is pressed, the positive displacement pump 7 is actuated once to supply an additional 3 grams of liquid miso with a predetermined amount U. When the miso addition switch 108A is pressed, the hot water 48 is added. Milliliter supplied. In addition, if it pushes several times, it will be additionally supplied by the number of times of pushing. Further, if the hot water adding switch 108A is continuously pressed for a predetermined time or longer, for example, 3 seconds or longer, the mode is switched to the drain mode, hot water is continuously discharged, and hot water discharging is stopped by pressing the hot water adding switch 108A. The last hot water supply setting and liquid miso amount setting are stored in the memory 119, and are set to the stored hot water supply setting and liquid miso amount setting at the next use. As described above, the microcontroller unit 83 is controlled.

  Then, when the supply of the liquid miso is finished, the inner cylinder 33 of the positive displacement pump 7 returns to the upper limit position. In this case, since the inner cylinder 33 is urged upward by the compression coil spring 66, the protrusion 67 is held in the inner cylinder 33, so that the liquid in the miso container 6 is retained. Miso does not leak.

  On the other hand, when the miso container 6 is replaced, the positive displacement pump 7 is cleaned, or the miso container 6 is stored in a cold place, the unlocking button 21 is pushed to open the door 18. The lock is released, the open / close door 18 is opened, and the miso container 6 is removed from the mounting portion 17 together with the positive displacement pump 7. When replacing the miso container 6, the holders 28, 28 are opened and the positive displacement pump 7 is attached to a new miso container 6, and then the miso container 6 is attached with the positive displacement pump 7 attached. It is attached to the attachment part 17. When the positive displacement pump 7 is to be cleaned, the positive displacement pump 7 can be removed from the miso container 6 after being removed from the main body 4, so that the cleaning can be easily performed.

  Thus, in this embodiment, in the liquid material supply apparatus having the miso container 6 as the liquid material container and the positive displacement pump 7 attached to the miso container 6 and discharging the liquid miso as the liquid material, the positive displacement pump 7 is an outer cylinder 32, an inner cylinder 33 that reciprocates in an axial direction with respect to the outer cylinder 32, and a first check that prevents liquid miso from moving from the outer cylinder 32 to the miso container 6. The valve 41 and a second check valve 51 for blocking the inflow of air from the outside to the inner cylinder 33, and the connection cylinder part 57 as a connection part connected to the external reciprocating mechanism 91 are connected to the inner cylinder 33. Since the inner cylinder 33 of the positive displacement pump 7 is mechanically reciprocated by the external reciprocating mechanism 91, even when supplying liquid miso several times in a relatively short time, Liquid miso can be supplied.

  As described above, in this embodiment, the gap 35 is provided between the outer cylinder 32 and the inner cylinder 33, the seal member 36 for sealing the gap 35 is provided in the inner cylinder 33, and the seal member 36 is provided. Since the compression coil spring 66 is provided between the outer cylinder 32 and the outer cylinder 32, the inner cylinder 33 is moved to the outer cylinder 32 by the compression coil spring 66 in a state where the miso container 6 and the positive displacement pump 7 are removed from the miso soup producing apparatus 1. Therefore, even if an external force is applied to the inner cylinder 33, it is possible to suppress leakage of liquid miso which is a liquid material in the miso container 6.

  In this way, in this embodiment, the outer cylinder 32 has a bottom, and a protrusion 67 substantially equal to the inner diameter of the inner cylinder 33 is provided at the center of the bottom of the outer cylinder 32. In a state where the inner cylinder 33 is retracted with respect to the outer cylinder 32, the inner cylinder 33 is blocked by the protrusion 67, and therefore, even when an external force is not applied to the inner cylinder 33, the leakage of liquid miso as a liquid substance is suppressed. Can do.

  Hereinafter, as an effect on the embodiment, a main body 4 having a container holder 3, hot water supply means 5 for sending hot water to the container 2 of the container holder 3, a miso container 6, and liquid miso in the miso container 6 are provided. In the miso soup supply device 1 having a positive displacement pump 7 to be sent to the vessel 2, the positive displacement pump 7 operates in conjunction with the hot water supply by the hot water supply means 5 to supply unit amount U of liquid miso N times (N is 2) By supplying the liquid miso of a predetermined amount U × N, the liquid miso is supplied to the device 2 by a small unit amount U. Since hot water is also supplied, miso can be sufficiently dissolved in hot water while being a post-mix type. Moreover, since it is a post-mixing type, a conventional mixing unit is not required, and care after use can be easily performed.

  Further, when the hot water supply time is T, the supply time of liquid miso of unit amount U is t, and the maximum supply frequency is Nmax, the hot water supply means supplies hot water to the device for a time equal to or less than Tt × Nmax, and then the positive displacement pump 7 is controlled to supply the unit amount U to the vessel 2 N times every time t, so that the liquid miso can be reliably dissolved in hot water.

  In addition, since the miso container 6 and the positive displacement pump 7 can be attached to and detached from the main body 4, the positive displacement pump 7 can be easily cleaned, so that care after use can be facilitated. it can.

  Furthermore, as an effect of the embodiment, since the device holder 3 is detachable from the main body 4, it can be easily removed and cleaned. Moreover, since the mounting part 17 can open and close the open / close door 18 to hold and remove the miso container 6, the miso container 6 can be easily replaced. Furthermore, since the holders 28 and 28 as attachment / detachment means for detachably attaching the positive displacement pump 7 to the opened cap 24 are provided, the positive displacement pump 7 can be easily attached to the miso container 6. Further, since the compression coil spring 66 biases the seal member 36, it is not necessary to provide a separate engagement portion or the like for the compression coil spring 66 in the inner cylinder 33. Further, since the second check valve 51 is covered with the nozzle cylinder 59, it is hygienic without being exposed, and the nozzle cylinder 59 is detachable, so that the positive displacement pump 7 can be easily cleaned. Can be done. Furthermore, since the hot water supply means 5 includes the pressure reducing rectifier 87, hot water can be uniformly supplied from the hot water supply port 16 to the device 2. The reciprocating mechanism 91 includes a disc-shaped eccentric cam 97, a motor 96 having a rotating shaft 96A connected to a position eccentric from the center of the eccentric cam 97, and a cam receiving portion 98 that moves up and down by the rotation of the eccentric cam 97. Since the inner cylinder 33 of the positive displacement pump 7 is raised and lowered by raising and lowering the cam receiver 98, even if the motor 96 is continuously rotated at a constant speed, liquid miso is intermittently supplied. Can be controlled. Moreover, since the transparent or translucent container main body 22 of the miso container 6 is exposed to the outside except the lower part in the inverted state in the state of being mounted on the mounting part 17, the remaining amount of liquid miso is visually observed. I can confirm. Furthermore, since the amount of hot water and the amount of liquid miso can be set arbitrarily, it is possible to obtain a miso soup having an amount and strength preferable for the user. Further, since the positive displacement pump 7 is provided with the horizontal cylindrical portion 31 as a lid receiving portion for fitting the lid 24B of the cap 24, the lid 24B does not get in the way, and the miso container 6 The positive displacement pump 7 can be removed and the opening 23 of the miso container 6 can be closed with the lid 24B. Furthermore, since the duckbill check valve is used for the check valves 51 and 69 of the positive displacement pump 7, the positive displacement pump 7 can be downsized. In addition, since the arm portion 92 is engaged with and disengaged from the upper and lower sides of the connecting tube portion 57, and the lower flange portions 58U and 58S are provided around, the arm portion 92 is sandwiched between the upper and lower flange portions 58U and 58S. The connecting cylinder part 57 can be reliably raised and lowered by the arm part 92.

  In addition, this invention is not limited to the above Example, A various deformation | transformation implementation is possible within the range of the summary of invention. For example, the container to be used is not limited to the bowl-shaped one shown in the embodiment, and may be a ceramic or synthetic resin cup or paper cup.

1 Miso soup feeder 6 Miso container (liquid container)
7 Displacement type pump 8 Liquid material supply device 32 Outer cylinder 33 Inner cylinder 35 Gap 36 Seal member 41 First check valve 51 Second check valve 57 Connection cylinder part (connection part)
66 Compression coil spring 67 Protrusion 91 Reciprocating mechanism

Claims (2)

In a liquid material supply apparatus having a liquid material container and a positive displacement pump attached to the liquid material container and discharging the liquid material,
The positive displacement pump has a bottomed outer cylinder, an inner cylinder that reciprocates in an axial direction with respect to the outer cylinder, and a first reverse that prevents movement of the liquid material from the outer cylinder to the liquid material container. possess a stop valve, a second check valve for preventing the inflow of air into the inner cylinder from the outside,
The inner cylinder is provided with a connecting portion connected to an external reciprocating mechanism, and is provided with a biasing means for constantly biasing the inner cylinder upward,
The liquid supply apparatus according to claim 1, wherein a downward projecting portion formed substantially equal to an inner diameter of the inner cylinder is provided on a bottom surface of the outer cylinder . Clearance is provided between the outer cylinder and the inner cylinder, the Rutotomoni sealing member for sealing the gap is provided in the inner cylinder, compression coil spring between the sealing member and the outer cylinder is provided The liquid supply apparatus according to claim 1.

Images