JPH06298202A - Filling device for highly viscous liquid - Google Patents

Abstract

PURPOSE:To provide a device for filling a highly viscous liquid, capable of filling even the containers having variable volumes for the highly viscous liquid in such a manner as to make a uniform liquid level. CONSTITUTION:Below a housing 1 having a highly viscous liquid supply chamber 12 formed in its interior, an outlet pipe 2 of the highly viscous liquid is provided vertically with its upper part in communication with the supply chamber 12 and the lower end open, a liquid feed opening 3 connected with a liquid feeding means is provided on the one side of the supply chamber 12 of the housing 1, a valve body 5 is provided to pass and block the liquid into the supply chamber 12 thereof by the vertical movement of its valve stem 4 caused by an opening and closing means 6, an suction opening 8 is provided in communication with a suction outlet hole 9 of a suction outlet passage 17 of the valve stem 4 connected with a suction means on the one side of a suction chamber 7 in the housing 1 and a suction pipe 10 for an excessively filled liquid is provided in an outlet pipe 2. By this device, even the containers having variable volumes for the highly viscous liquid can be filled in a short time and efficiently with the net weight of the liquid in such a manner as to make a uniform liquid level and the commercial value of the containers can be improved when they are displayed at a shop front.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-viscosity liquid filling device capable of quickly and reliably quantitatively filling a high-viscosity liquid into a container in the container filling and packaging industry. .

[0002]

2. Description of the Related Art Conventionally, in the liquid filling and packaging industry, etc.
When a highly viscous liquid such as ketchup, mayonnaise or sauce is filled in a permeable container, a piston type filling machine is often used.

In the filling machine 50, a fixed amount of the liquid in the liquid supply tank 51 is sent into the measuring tank 52 for measurement, and a pipe 54 is connected to a pipe 54 by a delivery piston 53 provided in the measuring tank 52. Through nozzle 55 to container 57 on table 56
Is to be filled. (Refer to FIG. 3) However, since a certain amount of the liquid fed into the measuring tank 52 is measured in the measuring tank 52, which is a so-called volume control system, the molding accuracy of the container 57 to be packed is low. , (Especially in the case of a glass container), the liquid supplied at a fixed amount will not be displayed when the finished filled container 57 is displayed on the store etc. Even though the contents were packed with the specified volume, the product gave the impression of a defective product in which the net amount was not filled, and the product had a bad appearance, and the product value was remarkably reduced.

Therefore, in order to uniformly fill the liquid level in each of the above-mentioned containers, a liquid level control type filling method must be used.

As shown in FIG. 4, the apparatus 60 according to this method fills the container 57 with a nozzle 61 by dropping the liquid by gravity or pumping the liquid, and when the liquid reaches a prescribed liquid level, Alternatively, the supply of the liquid is stopped immediately before reaching, and the excess liquid is sucked into the container 57 by a suction pipe 62 that is inserted into the container port and the suction port is made to correspond to the liquid surface so that the liquid inside the container 57 is a proper and constant liquid. By adjusting to the surface, the above-mentioned drawback was solved.

However, when the above-mentioned high-viscosity liquid is to be filled in the container by the gravity drop method, the fluidity of the liquid flow path is poor due to the viscosity of the liquid itself, and it takes time to complete the filling.

Further, since bubbles are likely to be mixed in the liquid during filling, the volume changes and the variation in the filling amount in the container becomes large, so that an accurate net amount cannot be filled.

Further, in this conventional filling, the filling speed cannot be controlled at the end of filling, and the liquid having a high viscosity has its liquid level immediately in the container after being discharged from the nozzle. Since it does not become flat and the swelling state is maintained for a long time, in the case of the liquid level regulation filling method, the portion of the swelling surface is sucked up by the suction pipe, so that the container cannot be quantitatively filled.

Further, even in the liquid pressure supply type, since the liquid level height varies greatly and the pressure control of the liquid feeding is difficult, the filling speed cannot be controlled at the end of filling.
It is not possible to eliminate the rising phenomenon of the liquid surface. There are various problems in filling high viscosity liquid such as.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, in which the upper part is provided on the lower side of the frame body in which a supply chamber for high-viscosity liquid is formed. A high-viscosity liquid delivery pipe that is in communication with the lower part of the frame and hangs down, and a liquid supply hole linked to the liquid supply means is provided on one side of the frame supply chamber. A valve body for flowing and closing the liquid by the vertical movement of the rod is provided, and a suction port connected to the suction means and connected to the suction hole of the suction passage of the valve rod is provided on one side of the suction chamber in the frame body. By providing a suction pipe for the overfilled liquid in the delivery pipe, it is possible to fill the highly viscous liquid with a uniform liquid level even in a container having a variation in volume. The purpose is to provide a filling device.

[0011]

Means for Solving the Problems The means of the present invention for achieving the above-mentioned object is a frame mounted on a support body and having a supply chamber for a high-viscosity liquid formed therein, and a lower side of the frame. A delivery pipe for the high-viscosity liquid that is hung down to communicate with the supply chamber at the upper part and has the lower part opened; and a liquid supply hole provided at one side of the supply chamber in the frame and linked to the liquid supply means, A hollow valve rod that is vertically coaxially inserted into the frame body so as to be movable up and down and has a suction path with an open lower end; and a vertical valve rod that is provided in the feed chamber of the frame body. A valve body that performs fluid flow and blockage by movement, an opening / closing means that is attached to an upper portion of the valve rod to open and close the valve body, and a suction chamber that is provided in the frame body and has the valve rod inserted therethrough; The suction chamber opened at one side of the suction chamber and connected to the suction means, and the suction chamber in the suction passage of the valve rod. A corresponding suction hole and a suction tube which is inserted into the delivery pipe and whose upper portion is attached to the lower end of the valve rod and whose lower end is substantially coincident with the lower end portion of the delivery pipe when the valve body is closed are provided. In the configuration of the filling device for high-viscosity liquid.

[0012]

The present invention configured as described above has the following operations.

When the container is filled with the fluid, the lower part of the delivery pipe is made to correspond to the mouth of the container, and the preparation is performed. Then, the liquid feeding means measures the amount of the liquid corresponding to the volume of the container and pressure-feeds it to the liquid supply hole. .

Then, since the fluid flows into the supply chamber in the frame, the liquid is filled into the container from the lower portion of the delivery pipe by opening the valve body by the opening / closing means.

When the liquid reaches the vicinity of the mouth of the container with the filling, the amount of the liquid fed out is reduced by the operation of the liquid feeding means to fill the liquid little by little.

Therefore, even if the liquid supplied to the container has a high viscosity, it does not form a swelling ridge, and the liquid is filled up to the specified liquid level while maintaining a flat liquid level.

At this time, when the capacity of the container is reduced due to defective molding of the container or the like and the container is overfilled with it, the excess liquid is sucked by the suction pipe linked with the suction means.

Since the lower end of this suction pipe is adjusted to a preset height, the liquid level is always the same even if the container volume varies.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a high viscosity liquid filling device according to the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a filling device for high-viscosity liquids used in the filling and packaging industry and the like. With this device A, for example, high-viscosity liquids such as ketchup, mayonnaise, sauces, etc. A plastic container b is filled with a fixed amount, and basically comprises a filling nozzle c and a liquid feeding means d.

The above-mentioned filling nozzle c is provided in the frame 1
The delivery pipe 2, the liquid supply hole 3, the valve rod 4, the valve body 5, the opening / closing means 6, the suction chamber 7, the suction port 8, the suction hole 9, and the suction pipe 10.

The above-mentioned frame 1 is attached to a support 11 to make a hollow inside to form a supply chamber 12 into which a highly viscous liquid from a liquid supply means d described later flows.

The supporting body 11 can be moved up and down by a predetermined stroke by the elevating means 14 attached to the frame 13, whereby the delivery pipe 2 is put into the container b filled with the liquid. And the suction tube 10 can be moved in and out.

The raising / lowering means 14 is, for example, a rod 16 of an air cylinder 15 fixed to a frame 13 attached to the support body 11 and moved up and down by the operation of the cylinder 15. Conventional means such as a screw type using a servomotor is adopted.

The delivery pipe 2 is formed into a hollow shape by hanging it from the lower side of the frame body 1 to a predetermined length and communicating the upper part thereof with the supply chamber 12 and opening the lower part. The high viscosity liquid can be sent out.

The above-mentioned liquid supply hole 3 is provided on one side of the supply chamber 12 in the frame 1 and is linked to the liquid supply means d.

The valve rod 4 is inserted into the frame body 1 so as to be movable up and down by the opening / closing means 6 so as to be substantially concentric with the delivery pipe 2, and a suction passage 17 having an open lower end is formed. It is molded into a hollow shape.

The valve body 5 is provided in the supply chamber 12 of the frame body 1.
It is provided in the inside of the valve chamber to move and close the liquid by moving the valve rod 4 up and down. To the valve seat 18 below the supply chamber 12,
The supply chamber 12 can be closed by abutting the sealing surface, and the opening / closing is performed by operating the opening / closing means 6 of the valve rod 4.

The opening / closing means 6 may be a known means such as a fluid cylinder or an electromagnetic solenoid, and its operating member is connected to the upper end of the valve rod 4.

The suction chamber 7 is provided above the supply chamber 12 in the frame 1, and the valve rod 4 is provided.
The valve rod 4 is provided with a suction hole 9 facing the suction chamber 7 in the upper portion of the suction passage 17 so as to surround the suction chamber 7.

The suction port 8 is opened at one side of the suction chamber 7 and is connected to suction means 19 such as a blower or a vacuum pump.

The suction pipe 10 is vertically inserted into the delivery pipe 2, and its upper portion is attached to the lower end of the valve rod 4, and when the lower end is closed by the valve body 4, the delivery pipe 10 is closed. There is provided a seal member 20 which substantially coincides with the lower end of the.

Therefore, the suction force by the suction means 19 acts on the lower opening of the suction pipe 10 from the suction hole 9 through the suction passage 17 in the suction chamber 7 to suck the liquid in the container b.

In FIG. 1 and FIG. 2, reference numeral 21 denotes a container guide which prevents the delusion of the container b at the time of filling by pressing the mouth of the container b placed on the pedestal 22. Therefore, it is attached to a connecting rod 23 linked to an elevating member (not shown) so as to be able to move up and down.

Next, the liquid feeding means d sends out a fixed amount of liquid to the filling nozzle c, that is, an amount corresponding to the capacity of the container b, and closes the liquid from the liquid supply tank 24 with the closing valve 25. After being sent to the measuring means 26 via a pipe and a fixed amount is measured, the sending means 27 pressure-feeds from the pipe 28 to the liquid supply hole 3 of the supply chamber 12.

The metering means 26 has an intake / exhaust piston 30 installed in a cylinder 29, one side of which is connected to the closing valve 25, and when the closing valve 25 is opened, the piston 30 is lowered when the piston 30 is lowered. The liquid in the liquid supply tank 24 flows into 29.

The delivery means 27 raises and lowers the suction / exhaust piston 30 to draw in and feed out the liquid, and a support guide 33 for an elevating body 32 linked to an operating rod 31 under the suction / exhaust piston 30. The screw shaft 35, to which the female screw piece 34 of the lifting body 32 is screwed, is driven by a numerically controllable drive member 36 such as a servomotor to move the intake / exhaust piston 30 by a predetermined amount. However, when the moving amount and moving speed of the suction / exhaust piston 30 are appropriately controlled by a control means (not shown), the filling speed and the filling amount of the liquid discharged from the delivery pipe 2 are determined.

As described above, the device A according to the embodiment of the present invention is
When filling the container B with a highly viscous fluid such as ketchup, the lower part of the delivery pipe 2 at the filling nozzle c is moved up and down to the container b placed on the receiving table 22 and fixed by the container guide 21. When it is lowered by 14 and made to correspond to the inside of the container b, preparation for filling is ready.

In this state, the liquid feeding means d measures the liquid corresponding to the capacity of the container b by the measuring means 26.
The closing valve 25 is opened, and the intake / exhaust piston is delivered by the delivery means 27.
When 30 is lowered, the liquid in the liquid supply tank 24 flows into the cylinder 29.

Since the servomotor 36 rotates in advance based on the data set in the control means, a stroke corresponding to the rotation amount is given to the intake / exhaust piston 30 to set the desired filling amount.

Next, after closing the closing valve 25, the rotation speed of the data set in the control means is given to the servo motor 36, and the liquid in the cylinder 29 is pumped to the liquid supply hole 3 through the pipe 28. It

Then, the fluid flows into the supply chamber 12 of the frame body 1, so that the opening of the valve body 5 by the opening / closing means 6 causes the liquid to be filled into the container b from the lower portion of the delivery pipe 2.

When the liquid reaches the vicinity of the mouth of the container with the filling of the liquid by the delivery of the piston 30, the delivery amount of the liquid is the first delivery amount by the operation of the delivery means 27 by the preset data control means. Since the liquid is further greatly reduced and the filling is changed little by little, the high-viscosity liquid supplied into the container b gradually rises in smoothness to the liquid level raised by the previous filling, and the liquid level does not rise. .

Therefore, the filling up to the specified liquid level is performed while maintaining the flat liquid level.

If the prescribed container capacity is reduced due to a defect such as molding in the container b, when the liquid is delivered by the measuring means 26, the container b is overfilled, so that the liquid level is Although higher than usual, a suction force is applied from the suction pipe 10 provided inside the delivery pipe 2 by the suction means 19 (the suction force may be given in advance, or the control means may be operated after a certain amount of filling). By doing so, the liquid corresponding to the liquid level raised from the lower end of the suction pipe 10 is sucked up, and the excess liquid is eliminated in the container b.

Since the suction part at the lower end of the suction pipe 10 is adjusted to a predetermined height by the elevating means 14, as described above, even if the container volume varies, these are already filled. When a large number of containers b, b ... Are provided side by side, the respective liquid surfaces are always in line.

After the completion of the filling of the liquid by the delivery means 27, the opening / closing means 6 operates to close the valve body 5. At this time, the suction pipe 10 also rises and the delivery passage of the delivery pipe 2 is sealed. When occluded by the member 20, the liquid stops and the liquid does not leak.

The delivery of the liquid by the delivery means 27 can be arbitrarily set by adjusting the moving speed of the piston 30 in accordance with a command given to the control means. Can be adjusted to

Further, it is needless to say that the apparatus A of the embodiment of the present invention can also be used as an ordinary piston type filling machine which does not use the suction means 19.

[0050]

The high-viscosity liquid filling apparatus of the present invention configured as described above has a uniform liquid level and a net amount even if the container has a high-viscosity liquid with variations in volume. It is possible to efficiently perform the filling with the above in a short time, and it is possible to improve the merchandise value when it is displayed in a store or the like, which is a unique effect.

[Brief description of drawings]

FIG. 1 is an outline explanatory view showing an example of implementation of a high-viscosity liquid filling device according to the present invention.

FIG. 2 is a sectional view showing a partially enlarged view of a filling nozzle portion in FIG.

FIG. 3 is an explanatory view showing a piston type filling machine in a conventional filling device.

FIG. 4 is an explanatory view showing a pressure (gravity) supply type filling machine in a conventional filling device.

[Explanation of symbols]

 1 frame 2 delivery pipe 3 liquid supply hole 4 valve rod d liquid delivery means 5 valve body 6 opening / closing means 7 suction chamber 8 suction port 9 suction hole 10 suction pipe 11 support 12 supply chamber 17 suction passage 19 suction means

Claims (1)

[Claims] 1. A frame mounted on a support body and having a supply chamber for a high-viscosity liquid formed therein, and a frame body hung below the frame so that an upper part communicates with the supply chamber and a lower part is opened. A viscous liquid delivery pipe, a liquid supply hole provided on one side of a supply chamber in the frame and linked to a liquid delivery means, and vertically inserted into the frame in a substantially concentric manner with the delivery pipe. A hollow valve rod in which a suction passage having an open lower end is formed; and a valve body which is provided in a supply chamber of the rod body to move and close the liquid by vertical movement of the valve rod, and the valve rod. An opening / closing means attached to an upper part for opening / closing the valve body, a suction chamber provided in the frame body for inserting the valve rod, and a suction port opened to one side of the suction chamber and connected to the suction means. And a suction hole corresponding to a suction chamber in a suction passage of the valve rod, and an upper portion of the valve rod inserted into the delivery pipe so that an upper portion thereof is a lower end A filling device for a high-viscosity liquid, comprising: a suction pipe which is attached to a lower end of the delivery pipe when the lower end is closed.