JP2005088915A - Fixed quantity filling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixed quantity filling machine capable of improving the filling accuracy and the filling speed at a low cost. <P>SOLUTION: The fixed quantity filling machine transfers a liquid substance to be filled to a discharge port of a pipe line 4 by a pump 1, and fills the liquid substance of the predetermined quantity in a container 6. A liquid sump 8 such as a pulsation preventive member on the upstream side of the discharge port is provided in the pipe line 4. The liquid sump 8 is installed above the discharge port, and the liquid substance inside the liquid sump 8 is fed to the discharge port side by natural drop after the pump 1 is stopped. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention refills foods such as seasonings, sauces and fragrances, chemicals such as detergents and paints, cosmetics such as shampoos and rinses, and various liquid fillings such as pharmaceuticals from large containers such as drums and tanks into small containers. The present invention relates to a quantitative filling machine and a filling method that can be suitably used for filling.

  As this kind and fixed quantity filling machine, for example, a tube type filling machine using a tube pump as described in Patent Document 1 and Patent Document 2 is known.

Japanese Patent Publication No. 8-6695 JP 2003-54501 A

  In these tube type filling machines, a rotating head having a plurality of rollers is mounted on a rotating shaft extending from a motor, and a tube made of an elastic material is disposed on a rotating locus of the rotating head. By rotating the rotary head at a constant speed, the liquid filler is transferred while intermittently squeezing the tube with each roller, and the liquid filler is filled into a small container. Further, in order to prevent pulsation of the liquid filling by the tube pump, a pulsation preventing member is installed on the downstream side of the tube pump so as to discharge the liquid filling stably from the discharge port. .

  The tube-type filling machine using the tube pump can be easily washed by passing a washing liquid through the tube, and particularly in the case of filling a liquid filling containing a fragrance or various germs. When it is difficult to clean the tube, it is possible to perform the filling operation of different liquid fillings using the same tube pump by simply replacing the tube with a new one. It was possible to solve the problem of causing a viscosity change without the liquid filling being kneaded.

  In the case of the above-mentioned Patent Document 1, the motor of the tube pump is rotated at a high speed at the start of filling, and the motor is braked when a lower limit set amount equal to or less than a predetermined amount to be filled is filled in the container. Thus, the motor is rotated at a low speed, and when the predetermined amount of liquid filling material to be filled is filled, the rotation of the motor is stopped. That is, at the time of filling, the rotation speed of the motor is set to two stages of high speed and low speed, thereby improving the accuracy of the filling amount and shortening the filling time. Furthermore, the motor of the tube pump is reversely rotated when a predetermined amount of liquid filling is filled, so that the so-called sagging drop from the distal end side of the tube is prevented.

  However, in the filling machine such as the above-mentioned Patent Document 1, a certain amount of time is required until the lower limit set amount is filled, the motor is braked, and low speed rotation is reached. If the difference between the lower limit set amount and the predetermined amount to be filled is reduced, there is a risk that the predetermined amount will be exceeded.

  Also, by setting the lower limit set amount low, the filling accuracy is increased, but the low-speed rotation time is lengthened, so the filling time is lengthened.

  On the other hand, in the filling machine disclosed in Patent Document 2, when the container is filled with a liquid filling having a lower limit set value equal to or less than a predetermined amount, the driving of the pump is stopped, and the liquid filling in the pipeline is caused by natural fall. It is provided so that a container may be filled. Here, as the pipeline, a main pipeline connected to the pump, a first pipeline branched from the main pipeline, and a second pipeline are disclosed, the first pipeline is The liquid filling is supplied to the container, and the second pipe is for supplying the liquid filling inside to the first pipe by natural fall when the pump is stopped.

  For this reason, according to the filling machine disclosed in Patent Document 2, even if the pump is stopped after the lower limit set amount is filled, the filling operation can be performed using natural fall. Thus, it is possible to reduce the time required to rotate the motor of a predetermined pump at a low speed, and to set the lower limit set amount close to the predetermined amount to be filled.

  However, in the filling machine disclosed in Patent Document 2, since the configuration of the pipe line is complicated, there is a possibility that the cost may increase.

  This invention is made | formed in view of the above problems, and makes it a subject to raise the filling precision and filling speed of filling with a quantitative type filling machine more at low cost.

  In order to achieve the above object, the quantitative filling machine according to the present invention is characterized in that the liquid filling material is transferred to the discharge port of the pipe line 4 by the pump 1 to fill the container with a predetermined amount of the liquid filling material. In the metering filling machine, a liquid pool 8 such as a pulsation preventing member is provided on the upstream side of the discharge port, and the liquid pool 8 is located above the discharge port. It is installed and is provided such that after the pump 1 is stopped, the liquid filling in the liquid pool 8 is supplied to the discharge port side by natural fall.

  In the constant-quantity filling machine having the above-described configuration, even when the pump 1 is driven, the container is filled with the liquid filling, and the pump 1 is stopped at the lower limit set amount that is equal to or less than the predetermined amount. By supplying the liquid filler inside to the discharge port side by natural fall, the liquid filler can be filled to a predetermined amount. Since the filling operation can be performed even if the pump 1 is stopped after the lower limit set amount is filled in this way, the time required to rotate the motor of the pump 1 at a low speed as in Patent Document 1 is shortened. In addition, the lower limit set amount can be set close to a predetermined amount to be filled. In addition, a pulsation preventing member that has been conventionally used as the liquid pool 8 can be used, which contributes to a reduction in product cost.

  Moreover, in the fixed-quantity filling machine which concerns on this invention, it is preferable to employ | adopt the structure by which the fluid reservoir 8 is provided with the communication part 831 for connecting an inside and the exterior. As a result, the inside of the liquid pool 8 is communicated with the outside at the communication portion 831, so that air flows into the liquid pool 8 from the outside via the communication portion 831 after the pump 1 is stopped. The filler is accurately supplied to the discharge port side by natural fall. In addition, it is preferable that this communication part 831 is provided in the upper part of the liquid pool 8, Thereby, the possibility that a liquid filling may enter into the communication part 831 can be avoided.

Further, in the case where the communication portion 831 as described above is provided, it is preferable to employ a configuration in which the communication portion 831 is provided with the on-off valve 85. Thus, except when supplying the liquid filling inside the liquid pool 8 to the discharge port side, the communication portion 831 is closed by the on-off valve 85, so that the liquid filling and the outside air inside the liquid pool 8 are closed. Even a liquid filling that dislikes air contact can be used accurately. Further, when the pump 1 is driven at high speed, the communication portion 831 is closed by the on-off valve 85, thereby avoiding the possibility that the liquid filling material is ejected from the communication portion 831.
Further, it is possible to provide a valve body in the pipe line 4 near the discharge port and close the valve body when a predetermined amount of liquid filler is filled. However, as described above, the communication portion 831 is configured. In the case where the opening / closing valve 85 is provided, the filling operation can be completed by closing the opening / closing valve 85 of the communication portion 831 when a predetermined amount of liquid filling material is filled. The desired purpose can be achieved. Furthermore, by closing the on-off valve 85 in this way, for example, the pump 1 such as a tube-type pump can be reversely rotated to set a negative pressure upstream from the discharge port to prevent dripping from the discharge port. it can.

  When the on-off valve 85 is provided as described above, the control means 7 controls the on-off valve 85 so that it is closed when the pump 1 is driven and opened after the pump 1 is stopped. It is preferable to adopt the configuration described above. Further, it is preferable to adopt a configuration in which the on-off valve 85 is controlled by the control means 7 so as to be in a closed state when a predetermined amount of liquid filling is filled.

  Moreover, it is preferable that the communicating part 831 is provided so that the degree of opening can be adjusted so as to adjust the supply speed of the liquid filling after the pump 1 is stopped. As a result, the amount of air flowing into the liquid reservoir 8 via the communication portion 831 can be adjusted, and the supply rate of the liquid filler in the liquid reservoir 8 to the discharge port side can be adjusted accordingly. It is possible to perform an accurate filling operation according to the viscosity and type of the object.

  The liquid filling metering machine according to claim 6 of the present invention is characterized in that the liquid filling material is transferred to the discharge port of the pipe line 4 by the pump 1, and a predetermined amount of the liquid filling material is put into the container. It is a fixed amount filling machine provided so as to be filled, and a liquid pool 8 such as a pulsation preventing member is provided on the upstream side of the discharge port in the pipe 4, and pressurizes the inside of the liquid pool 8. A pressurizing means 9 is provided, and the liquid reservoir 8 is provided so that the liquid filling inside is supplied to the discharge port side by the pressurization of the pressurizing means 9 after the pump 1 is stopped.

  In the constant-quantity filling machine having the above-described configuration, even when the pump 1 is driven, the container is filled with the liquid filling, and the pump 1 is stopped at the lower limit set amount that is equal to or less than the predetermined amount. By supplying the internal liquid filling material to the discharge port side by internal pressure, the liquid filling material can be filled to a predetermined amount. Since the filling operation can be performed even if the pump 1 is stopped after the lower limit set amount is filled in this way, the time required to rotate the motor of the pump 1 at a low speed as in Patent Document 1 is shortened. In addition, the lower limit set amount can be set close to a predetermined amount to be filled. In addition, a pulsation preventing member or the like that has been conventionally used as the liquid pool 8 can be used, which can contribute to a reduction in product cost. In the case of adopting the above configuration, the liquid pool 8 is installed above the discharge port, and the liquid filling inside the liquid pool 8 is pressurized by the pressurizing means 9 after the pump 1 is stopped. In addition, it is preferable to be provided so as to be supplied to the discharge port side not only by natural fall, but the liquid reservoir 8 can also be installed below the discharge port. The “pressurization of the liquid pool 8” may employ a method of directly pressurizing the liquid filling in the liquid pool 8, but is higher than the liquid level of the liquid filling in the liquid pool 8. It is preferable to employ a method of pressurizing the space portion, which has the advantage that the entire apparatus can be cleaned very easily. Further, as the pressurizing means 9 as described above, for example, an air supply means such as an air compressor for supplying air to the upper space can be employed. In addition, even the fixed-quantity filling machine according to the invention described in claim 6 of the present application can adopt the configuration described in claims 2 to 5 described above.

  In addition, the liquid filling quantitative method according to the present invention is characterized in that the liquid filling is transferred to the discharge port of the pipe line 4 by the pump 1 and the container is filled with a predetermined amount of the liquid filling. In this method, at the start of filling, when the pump 1 is driven and the container is filled with a liquid filling of a lower limit set amount not more than a predetermined amount, the driving of the pump 1 is stopped and a predetermined amount of liquid filling is performed. By supplying the liquid filling material inside the liquid pool 8 such as a pulsation preventing member disposed in the middle of the pipeline 4 and above the discharge port until the material is filled, it is supplied to the discharge port side by natural fall. The liquid filling material is filled in the container.

  According to the fixed-quantity filling method having the above configuration, the pump 1 is driven to fill the lower limit set amount of liquid filling through the pipe line 4, and then the pump 1 is stopped to fill the liquid in the liquid reservoir 8. By supplying the object to the discharge port side by natural fall, the container is filled with the liquid filler, and the filling operation is completed. Thus, even if the pump 1 is stopped after the container is filled with the lower limit set amount, the filling operation is performed, and the time required to rotate the motor of the predetermined pump 1 at a low speed as in Patent Document 1 is obtained. In addition to shortening, it is possible to set the lower limit set amount close to a predetermined amount to be filled. Moreover, the pulsation prevention member conventionally used as the liquid pool 8 can be utilized, and this can contribute to reduction of product cost.

  Further, in the fixed-quantity filling method according to the present invention, the liquid reservoir 8 has the opening / closing valve 85 in the communication portion 831 for communicating the inside and the outside, and the opening / closing of the communication portion 831 is started when filling is started. The valve 85 is in a closed state, and when the container is filled with a liquid filling of a lower limit set amount equal to or less than a predetermined amount and the driving of the pump 1 is stopped, the on-off valve 85 of the communication portion 831 is opened, and a predetermined amount It is preferable to employ a configuration in which the on-off valve 85 of the communication portion 831 is closed when the liquid filling is filled. Thereby, the inside of the liquid pool 8 is communicated with the outside at the communication portion 831, so that the liquid filling inside the liquid pool 8 is supplied to the discharge port side by natural fall after the pump 1 is stopped. Further, by configuring as described above, the communication portion 831 is closed except when the liquid filling inside the liquid pool 8 is supplied to the discharge port side, and the liquid filling inside the liquid pool 8 is closed. The contact with the outside air can be limited, and even a liquid filling that dislikes air contact can be used accurately. Further, since the communication portion 831 is closed when the pump 1 is driven, it is possible to avoid the possibility that the liquid filling material is ejected from the communication portion 831. Further, when the predetermined amount of liquid filling is filled, the communication portion 831 is closed, whereby the filling operation can be completed, and a desired object can be achieved with a very simple configuration. Furthermore, if the communication portion 831 is closed after the pump 1 is stopped and the pump 1 such as a tube-type pump is rotated in the reverse direction, the upstream side of the discharge port can be set to a negative pressure, and dripping from the discharge port is prevented. Can be prevented

  In addition, the liquid filling material according to the ninth aspect of the present invention is characterized in that the liquid filling material is transferred to the discharge port of the pipe line 4 by the pump 1, and a predetermined amount of the liquid filling material is put into the container. A predetermined amount filling method for filling, wherein at the start of filling, the pump 1 is driven, and when the container is filled with a liquid filling having a lower limit set amount equal to or less than the predetermined amount, the driving of the pump 1 is stopped, The inside of the liquid pool 8 such as a pulsation preventing member disposed in the middle of the pipe 4 is pressurized until a predetermined amount of the liquid filling is filled, and the liquid filling inside is supplied to the discharge port side. Therefore, the liquid filling material is filled in the container.

  According to the fixed-quantity filling method having the above configuration, the pump 1 is driven to fill the lower limit set amount of liquid filling through the pipe line 4, and then the pump 1 is stopped to fill the liquid in the liquid reservoir 8. When the product is supplied to the discharge port side by internal pressurization, the container is filled with the liquid filler, and the filling operation is completed. Thus, even if the pump 1 is stopped after the container is filled with the lower limit set amount, the filling operation is performed, and the time required to rotate the motor of the predetermined pump 1 at a low speed as in Patent Document 1 is obtained. In addition to shortening, it is possible to set the lower limit set amount close to a predetermined amount to be filled. Moreover, the pulsation prevention member conventionally used as the liquid pool 8 can be utilized, and this can contribute to reduction of product cost. In the case of adopting the above configuration, the liquid reservoir 8 is installed above the discharge port, and the liquid filling inside the liquid reservoir 8 is not only applied to the internal pressurization after the pump 1 is stopped. Although it is preferable to adopt a method of supplying to the discharge port side even by natural fall, it is also possible to employ a method of supplying a liquid pool only below the discharge port and supplying only by internal pressure. The “pressurization of the liquid pool 8” may employ a method of directly pressurizing the liquid filling in the liquid pool 8, but is higher than the liquid level of the liquid filling in the liquid pool 8. It is preferable to employ a method of pressurizing the space portion, which has the advantage that the entire apparatus can be cleaned very easily. As a method for pressurizing the upper space as described above, for example, a method of supplying air to the upper space by an air supply means such as an air compressor can be employed. Even in the metering filling machine according to the ninth aspect of the present invention, it is possible to employ an on-off valve or the like controlled by the control means described above.

  Hereinafter, embodiments of a quantitative filling machine according to the present invention will be described with reference to the drawings. FIG. 1 shows the overall structure of the tube-type filling machine, FIG. 2 is an explanatory view schematically showing the flow path of the filling machine, and FIG. 3 shows control of pump drive and valve body opening / closing. It is explanatory drawing for demonstrating. FIG. 4 is a control block diagram of the tube filling machine. FIG. 5 is a front view of the pulsation prevention member, FIG. 6 is a side view of the pulsation prevention member, and FIG. 7 is an exploded perspective view of the pulsation prevention member. FIG. 8 is a longitudinal end view of the pulsation preventing member in use. FIG. 9 is a perspective view of a nozzle used in the filling machine of the present embodiment.

  The fixed amount filling machine of the present embodiment includes a pump 1, a pipe line 4 for filling the liquid supply supplied by the pump 1 into the container 6, a weighing machine 2 for measuring the weight of the container 6, And a controller 7 (control means) for controlling driving of the pump 1 and the like.

  The weighing machine 2 is provided with a weight setting button 21, and the weighing machine 2 is provided to transmit various signals to the controller 7 in accordance with the weight set by the weight setting button 21. . Specifically, it is possible to set a predetermined amount to be filled or a lower limit set value less than the predetermined amount, and to send various signals to the controller 7 when the weight reaches the predetermined amount or the lower limit set value. ing.

  For example, a well-known tube pump 1 can be adopted as the pump 1. The tube pump 1 has a rotary head 13 mounted on a rotary shaft 12 extending from a motor 11, and the rotary head 13 supports a plurality of rollers 14. A tube receiving plate 15 having a semicircular arc shape is disposed on the outer periphery of the rotating head 13, and a tube 16 made of an elastic material is detachably interposed between the receiving plate 15 and the rotating head 13. Then, by rotating the rotary head 13 as the motor 11 is driven, the liquid filling material is transferred while the tubes 16 are squeezed intermittently by the rollers 14.

  One end of the tube 16 in the length direction of the tube pump 1 is plunged into a large container 5 such as a drum filled with a liquid filler, while the tube, which will be described later, is placed on the other end in the length direction. A tube 16 constituting the path 4 is continuously provided.

  The above-described tube pump 1 can be easily cleaned by passing a cleaning liquid through the tube 16, and particularly in the case of filling a liquid filling containing a fragrance or various germs, When cleaning is difficult, it is possible to perform the filling operation of different liquid fillings using the same tube pump 1 by simply replacing the tube 16 with a new one, and when passing through the tube pump 1, It is possible to prevent the viscosity from being changed without the liquid filling being kneaded.

  The conduit 4 is mainly composed of a flexible tube, and has a discharge port that faces the opening of the container 6 placed on the weighing machine 2.

  The discharge port of the pipe line 4 is provided with a discharge port valve 41 that opens when the inside of the pipe line 4 becomes high pressure and closes when the inside of the pipe line 4 becomes negative pressure. The discharge port valve 41 is composed of a nozzle formed of a flexible material. As shown in FIG. 9, the nozzle as the discharge port valve 41 includes a substantially cylindrical tube portion 411 and a tip portion integrally formed on the tip end side of the tube portion. Four constricted portions 412 are provided on the side surface of the tip portion of the nozzle 41, and the tip surface is formed in a substantially cross shape. The tip portion is formed with a substantially cross-shaped slit 413 along the shape of the tip surface, whereby the slit 413 at the tip portion of the nozzle 41 is opened when the inside of the pipe line 4 becomes high pressure, When the inside of the pipe line 4 becomes negative pressure, it is closed.

  In addition, the pipe 4 is provided with a liquid reservoir 8 that can accommodate a liquid filling material in the interior thereof on the downstream side of the pump 1 and on the upstream side of the discharge port. Is composed of a pulsation preventer 8 (pulsation preventing member). The pulsation preventer 8 is for preventing the pulsation that occurs when each roller 14 transfers the liquid filling while squeezing the tube 16 of the tube pump 1.

  The pulsation preventer 8 has an inlet 821a connected to the tube 16 on the pump side and an outlet 822a connected to the tube 16 on the outlet side, and the liquid filler flows into the inside from the inlet 821a. Then, after being accommodated once in the inside, it is made to flow out from the outflow port 822a to the discharge port side. The pulsation preventer 8 is provided so that the inside of the pulsation preventor 8 can accommodate the liquid filling in a state having a space portion (upper space portion S) above, and therefore, the inflow amount from the inlet 821a and The liquid level of the liquid filling inside the pulsation preventer 8 changes according to the difference in the outflow amount from the outlet 822a, and the amount of liquid filling inside changes, so that the pulsation of the liquid filling is prevented. Will be.

  Further, the pulsation preventer 8 is provided with a communication portion 831 that leads from the outside to the internal upper space portion S. If the inside of the pulsation preventer 8 communicates with the outside by the communication portion 831, the outside air can flow into the upper space S of the pulsation preventer 8 from the communication portion 831. The liquid filler inside the pulsation preventer 8 is supplied to the discharge port side by natural fall, and the container 6 can be filled with the liquid filler. In addition, since this communication part 831 is provided in the upper part of the pulsation preventer 8, the possibility that a liquid filler may enter into the said communication part 831 is avoided.

  The communication portion 831 is provided with an on-off valve 85 that is controlled by the controller 7 to open and close the communication portion 831. In this embodiment, the on-off valve 85 is composed of an electromagnetic control valve.

  The on-off valve 85 of the communication portion 831 is in a closed state when the pump 1 is driven, is opened after the pump 1 is stopped, and is closed after a predetermined amount of liquid filling is filled. It is controlled by the controller 7.

  The communicating portion 831 is provided so that the degree of opening can be adjusted to adjust the supply speed of the liquid filling after the pump 1 is stopped. Specifically, the on-off valve 85 of the communication portion 831 is provided so that the air inflow speed in the open state can be adjusted. Thus, since the inflow speed of the air flowing in through the communication portion 831 can be adjusted, the supply speed of the liquid filling in the pulsation preventer 8 to the discharge port side during natural fall can be adjusted. It is possible to perform an accurate filling operation according to the viscosity and type of the filling. The on-off valve 85 is provided with an adjusting screw (not shown) for adjusting the degree of opening of the communicating portion 831. By rotating this adjusting screw, the degree of opening of the communicating portion 831 can be adjusted. Is provided.

  Further, in this embodiment, as shown in FIGS. 5 to 8, the pulsation preventer 8 includes a base 81 including a pair of column members 812 having locking holes 812a formed on the upper side, and an inflow port on the lower side. 821a and an outlet 822a, a cylinder 82 placed on the base 81, a lid member 83 for closing the cylinder 82, and a lid member 83 that is latched by the locking hole 812a. It is comprised from the pressing member 84 pressed to the cylinder body 82 side.

  The lid member 83 is provided with a communication hole for connecting the inside and the outside of the pulsation preventer 8 to the outside, and the opening / closing valve 85 is attached to the communication hole. The communication portion 831 is configured by the communication hole formed in the lid 83 and the opening / closing passage (not shown) of the on-off valve provided continuously to the communication hole.

  The cylindrical body 82 includes an inlet portion 821 and an outlet portion 822 that respectively protrude from the lower side surface of the substantially cylindrical cylindrical main body 820. The inlet portion 821 and the outlet portion 822 are respectively provided with the tubes described above. Is externally fitted. Further, the cylinder body 820 has such a height that when the pump 1 is driven, the liquid level inside the liquid filling does not reach the upper part and the space S is formed in the upper part. The inflow port portion 821 and the outflow port portion 822 are formed at positions facing each other, and have through-holes 821a and 822a penetrating to the inside of the cylinder main body 820, and the through-holes 821a and 822a are respectively provided. The inflow port and the outflow port described above are configured.

The base 81 includes a base main body 810 made of a substantially rectangular flat plate member, a central projecting member 811 provided so as to protrude upward from a central portion of the base main body 810, and an upper side from the base main body 810. And a pair of column members 812 provided so as to protrude from the top. The central projecting member 811 is a flat plate member disposed on the line connecting the inflow port 821a and the outflow port 822a so as to be orthogonal to the line. For this reason, the liquid filling material that has flowed in from the inflow port 821a has its pulsation relaxed by the central projecting member 811 and flows out from the outflow port 822a.
The pair of column members 812 are provided outside the side edges of the central projecting member 811, and are provided so as to face each other with the central projecting member 811 interposed therebetween. Further, the locking holes 812a of the pair of column members 812 are formed at positions facing each other.

  The pressing member 84 includes a rod-shaped member 842 whose both ends are engaged with locking holes 812 a formed in the pair of column members 812, and a screw member 841 screwed into the center of the rod-shaped member 842. It is configured. The screw member 841 is screwed so that the tip protrudes from the lower surface of the rod-shaped member 842, and the screw member 841 is screwed to press the lid 83 downward at the tip of the screw member 841, thereby pulsating. The inside of the preventer 8 is sealed.

  The controller 7 is incorporated in the control box 3, and the control box 3 includes a start switch 31 for starting rotation of the motor 11 of the tube pump 1, a stop switch 32 for stopping rotation of the motor 11, and the like. Is provided.

  As shown in FIG. 4, the controller 7 built in the control box 3 includes a rotation instruction means 71 for instructing rotation of the motor 11 based on the measurement result of the weighing machine 2, and rotation of the motor 11 is stopped. A rotation stop instruction means 72 for causing the motor 11 to reversely rotate at a predetermined time and a predetermined speed, and an opening / closing instruction means 73 for instructing opening / closing of the on-off valve 85.

  The input side of the controller 7 is connected to switches such as the start switch 31 and stop switch 32 and the weighing machine 2, and the output side of the controller 7 is connected to the motor 11 of the tube pump 1 and the The on-off valve 85 of the communication part 831 is connected.

  Next, the tube-type filling machine of the present embodiment has the above-described configuration. Next, a method for filling a liquid container into the small container 6 using the filling machine will be described.

When filling the small container 6 with the liquid filler, first, the weight of the liquid filler to be filled in the small container 6 is set by each weight setting button 21 of the weighing machine 2. At this time, in addition to the weight (predetermined amount) of the liquid filling material to be filled, a lower limit setting value (weight of the liquid filling material) for stopping the supply by the pump 1 is set as will be described later.
Further, the degree of opening of the communication portion 831 is adjusted to a desired level (air suction speed) in order to adjust the supply rate of the liquid filling after the pump 1 is stopped.

Then, the small container 6 is placed on the weighing machine 2, the discharge port faces the opening of the small container 6, and then the start switch 31 is turned on to start filling.
When filling is started, an output signal is output from the rotation instruction means 71 of the controller 7 to the motor 11 of the pump 1. At this time, the on-off valve 85 of the communication portion 831 is closed, and the communication portion 831 of the pulsation preventer 8 is closed. Thereby, filling of the container 6 is started via the pipe line 4, and the pulsation of the liquid filling material by the pump 1 is alleviated by the pulsation preventer 8 arranged in the middle part of the pipe line 4.

Then, when the weighing by the weighing machine 2 reaches a certain value (lower limit set value) which is equal to or less than a predetermined amount, that is, when the liquid filling is filled in the small container 6 by the lower limit set amount, the weighing machine 2 Based on the measurement result, an output signal is output from the rotation stop instructing means 72 of the controller 7 to the motor 11, and an open signal is output from the on / off valve instructing means 73 to the on / off valve 85. Based on these signals, the motor 11 is stopped, the on-off valve 85 of the communication portion 831 is shifted to an open state, and the communication portion 831 of the pulsation preventer 8 is opened. In this way, since the on-off valve 85 of the communication portion 831 shifts to the open state, the liquid filling accommodated in the pulsation preventer 8 flows out to the discharge port side by natural fall, and thereby the liquid filling A thing will be supplied to the container 6 from a discharge outlet.
Further, when the on-off valve 85 is opened as described above and the liquid filling in the pulsation preventer 8 is supplied to the container 6, the communication portion 831 is provided inside the pulsation preventer 8 (upper space portion S). However, since the speed of the air flowing into the pulsation preventer 8 is adjusted, the supply speed of the liquid filler from the pulsation preventer 8 to the discharge port can be adjusted. In addition, the supply speed of the liquid filler to the container 6 when the pump 1 is stopped can be adjusted.

When the liquid filler in the pulsation preventer 8 is supplied to the discharge port side by natural fall, when the weighing machine 2 determines that a predetermined amount of the liquid filler is filled in the small container 6, Based on the signal from the weighing machine 2, the opening / closing instruction means 73 of the controller 7 outputs a closing signal to the opening / closing valve 85. As a result, the on-off valve 85 shifts to a closed state, and the inside of the pulsation preventer 8 (the accommodation space portion S) is in a sealed state. The filling operation into the container 6 is completed.
As described above, when the controller 7 transmits the block signal, the reverse rotation instructing unit of the controller 7 transmits the reverse rotation signal to the motor 11. As a result, the motor 11 reverses at a predetermined speed for a predetermined time, so that the inside of the pipe line 4 where the on-off valve 85 is closed becomes negative pressure, and the slit 413 (discharge port) of the nozzle 41 is reliably closed.

  As described above, according to this embodiment, even when the pump 1 is driven to fill the container with the liquid filling and the pump 1 is stopped at the lower limit set amount below the predetermined amount, the pulsation preventer 8 The liquid filler inside is supplied to the discharge port side by natural fall, so that the liquid filler can be filled into the container 6 up to a predetermined amount. Thus, even if the pump 1 is stopped, the filling operation from the lower limit set amount to the predetermined amount can be performed, so that the time required for the pump motor to rotate at a low speed as in the conventional patent document 1 is shortened. In addition, the lower limit set amount can be set close to a predetermined amount to be filled. Moreover, the conventionally used pulsation preventer 8 can be used, which can contribute to a reduction in product cost.

  Further, in the constant-quantity filling machine according to the present embodiment, the communicating portion 831 is opened and closed by opening and closing the on-off valve 85, and the inside of the pulsation preventer 8 can be controlled to communicate with the outside air. Can be easily controlled.

  Further, since the communication portion 831 is provided in the upper portion (upper space portion S) of the pulsation preventer 8, it is possible to avoid the possibility that the liquid filling in the pulsation preventer 8 enters the communication portion 831.

  In addition, since the on-off valve 85 is provided so as to be able to adjust the degree of opening of the communicating portion 831 in the open state, the supply rate of the liquid filler at the time of natural fall can also be adjusted.

  In addition, since the said Example was comprised as mentioned above and had the said advantage, this invention is not limited to this, A design change is possible suitably within the range which this invention intends.

  That is, in the above-described embodiment, the description has been given of the case where the nozzle 41 is provided at the discharge port of the pipe 4. However, in the present invention, the nozzle 41 is not an essential constituent element, and the discharge port is connected to the discharge port. Even in the case where a valve is provided, the nozzle 41 is not limited thereto.

  Further, the on-off valve 85 as in the above embodiment is not an essential constituent element of the present invention, and even when the on-off valve is provided in the communication portion, the on-off valve as in the above embodiment is an electromagnetic control valve. It is not limited to a certain thing, It is possible to employ | adopt an appropriate on-off valve.

  In the above embodiment, the opening degree of the open / close valve 85 is adjustable in order to adjust the opening degree of the communicating portion 831. However, other configurations are employed to communicate with each other. It is also possible to adjust the degree of opening of the portion 831.

  Further, in the present invention, it is preferable to employ the tube type pump 1 as in the above embodiment, but the present invention is not necessarily limited to this, and an appropriate pump can be employed. Furthermore, for example, it is possible to use a pump that does not generate pulsation and the pulsation preventer 8 shown in the above embodiment as a liquid pool, that is, the liquid pool 8 has a function of preventing pulsation. It is not an essential requirement.

  Moreover, in the said Example, although what opened the inside (upper space part) of the pulsation preventer 8 to air | atmosphere via the communication part 831 was demonstrated, this invention is not limited to this. That is, for example, the communication portion 831 of the pulsation preventing member 8 as in the above embodiment can be connected to an air supply means such as an air compressor. That is, not only the natural fall after the pump 1 is stopped, but also the inside of the pulsation preventer 8 is pressurized by the pressurizing means such as the air supply means, so that the liquid filling inside the pulsation preventer 8 is brought to the supply port side. It is also possible to provide it. In this way, by performing pressurization of the liquid pool by the pressurizing means, even if the liquid filling has a high viscosity, the liquid filling can be accurately supplied to the supply port side after the pump is stopped.

  Furthermore, in the present invention, it is not an essential requirement that the liquid pool 8 be installed above the discharge port. For example, the pulsation preventer 8 provided in the middle of the pipe line 4 as in the above embodiment is provided. As shown in FIG. 10, it is installed below the discharge port, and after the pump 1 is stopped, the inside of the pulsation preventer 8 is pressurized by the pressurizing means 9 to stop the liquid filling inside the pulsation preventer 8. It is also possible to provide so as to be supplied to the supply port side. In the illustrated example, the pressurizing means 9 employs an air supply means 9 such as an air compressor for supplying air to the upper space inside the pulsation preventer 8. Compared with the one that pressurizes the filling, there is an advantage that the cleaning is easy and the configuration is simple. In the illustrated example, an open / close valve 85 controlled by the control means is provided between the communication portion provided in the liquid reservoir 8 and the air supply means 9 as in the above embodiment (for example, at the upper portion of the communication portion). Thus, for example, the air supply means 9 is always driven, and the on-off valve 85 is controlled (for example, closed when the pump is driven, shifted to the open state when the pump is stopped, and closed when the filling operation is completed). By making the transition, the filling of the liquid filling can be easily controlled.

  Further, the controller 7 is not limited to the above-described embodiment, and adopting other control means is a matter that can be appropriately changed in design in the present invention.

The whole structure of the tube-type filling machine of one Example of the fixed quantity filling machine which concerns on this invention is shown. It is explanatory drawing which shows schematically the flow path of the filling machine of the Example. It is explanatory drawing for demonstrating control of the drive of the pump of the same Example, and opening and closing of a valve body. It is a control block diagram of the tube type filling machine of the Example. It is a front view of the pulsation preventer used for the tube type filling machine of the Example. It is a side view of the pulsation preventer. It is a disassembled perspective view of the pulsation preventer. It is a longitudinal end view in the use state of the pulsation preventer. It is a perspective view of the nozzle used for the tube type filling machine of the Example. The whole structure of the tube-type filling machine of the other Example of the fixed quantity filling machine which concerns on this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pump 2 Measuring machine 3 Controller box 4 Pipe line 41 Nozzle 5 Large container 6 Small container 7 Control means (controller)
8 Pulsation preventer 831 Communication portion 85 On-off valve 9 Pressurizing means S Upper space portion

Claims (9)

A metering filling machine provided to transfer a liquid filling to a discharge port of a pipe line (4) by a pump (1) and to fill a container with a predetermined amount of the liquid filling;
The pipe (4) is provided with a liquid pool (8) such as a pulsation preventing member on the upstream side of the discharge port,
The liquid pool (8) is installed above the discharge port, and is provided so that the liquid filling inside the liquid pool (8) is supplied to the discharge port side by natural fall after the pump (1) is stopped. A quantitative filling machine characterized in that The metering filling machine according to claim 1, wherein
The liquid filling machine (8) is provided with a communication portion (831) for communicating the inside and the outside. A metering filling machine according to claim 2,
The communicating portion (831) is provided with an open / close valve (85), and the quantitative filling machine. A metering filling machine according to claim 3,
The on-off valve (85) of the communication part (831) is controlled by the control means (7) so that it is closed when the pump (1) is driven and opened after the pump (1) is stopped. A quantitative filling machine characterized by that. A metering filling machine according to any one of claims 2 to 4,
The communication filling part (831) is provided with an adjustable degree of opening so as to adjust the supply speed of the liquid filling after the pump (1) is stopped. A metering filling machine provided to transfer a liquid filling to a discharge port of a pipe line (4) by a pump (1) and to fill a container with a predetermined amount of the liquid filling;
The pipe (4) is provided with a liquid pool (8) such as a pulsation preventing member on the upstream side of the discharge port,
A pressurizing means (9) for pressurizing the inside of the liquid pool (8);
The liquid pool (8) is provided so that the liquid filling inside is supplied to the discharge port side by the pressurization of the pressurizing means (9) after the pump (1) is stopped. Fixed quantity filling machine. A predetermined amount filling method of transferring a liquid filling material to a discharge port of a pipe line (4) by a pump (1) and filling a container with a predetermined amount of liquid filling material,
At the start of filling, the pump (1) is driven,
When the container is filled with the liquid filling of the lower limit set amount below the predetermined amount, the drive of the pump (1) is stopped,
Until the liquid filler of a predetermined amount is filled, the liquid filler inside the liquid pool (8) such as a pulsation preventing member disposed in the middle of the pipe (4) and above the discharge port naturally falls. A quantitative filling method, wherein the container is filled with the liquid filling by supplying the liquid to the discharge port side. The fixed-quantity filling method according to claim 7,
The liquid pool (8) has an on-off valve (85) in a communication portion (831) for communicating the inside and the outside,
At the start of filling, the on-off valve (85) of the communication portion (831) is in a closed state,
When the container is filled with a liquid filling of a lower limit set amount equal to or less than a predetermined amount and the driving of the pump (1) is stopped, the on-off valve (85) of the communication portion (831) is opened,
A quantitative filling method characterized in that, when a predetermined amount of liquid filling material is filled, the on-off valve (85) of the communicating portion (831) is closed. A predetermined amount filling method of transferring a liquid filling material to a discharge port of a pipe line (4) by a pump (1) and filling a container with a predetermined amount of liquid filling material,
At the start of filling, the pump (1) is driven,
When the container is filled with the liquid filling of the lower limit set amount below the predetermined amount, the drive of the pump (1) is stopped,
The inside of the liquid pool (8) such as a pulsation preventing member disposed in the middle of the pipe (4) is pressurized until a predetermined amount of the liquid filling is filled, and the liquid filling inside is discharged to the discharge port side. A quantitative filling method characterized by filling a container with a liquid filling by supplying to a container.

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