JPH0215570Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a device for pouring relatively high viscosity liquids, such as sauces, etc., onto foods.

(Prior art) In food processing, equipment for pouring liquid into the food, such as sauce, is installed in the middle of the processing line, and when the food approaches the pouring equipment, the liquid injection equipment is activated to dispense a predetermined amount of liquid. Food processing lines that perform liquid injection are in practical use.

By the way, if the liquid injected into the food in the above-mentioned liquid injection equipment is a highly viscous sauce, etc., in order to implement the intermittent injection method in which the liquid is injected after waiting for the arrival of the food, an on-off valve is installed at the liquid injection nozzle. A mechanism is required.

In addition, in the liquid injection equipment applied to the food processing line as described above, the interior of the equipment must be cleaned after completion of work, and therefore, it is also necessary that the equipment be easy to disassemble and assemble.

FIG. 5 is a sectional view showing essential parts of a conventional liquid injection device, and FIG. 6 is a sectional view taken along line bb in FIG. 5.

In the figure, 1 is an outer cylinder that is horizontally fixed by a mounting member 2, and an appropriate number of liquid injection holes 1a are provided at the bottom of the outer cylinder.
has.

Reference numeral 3 denotes an inner cylinder which is slidably and rotatably fitted into the outer cylinder and has one end sealed 4, and has a liquid injection hole 3a corresponding to the liquid injection hole 1a of the outer cylinder 1.

5 is fixed to one end of the outer cylinder 1, and inside the outer cylinder, the inner cylinder 3
It is a liquid injection spout that is connected to the open end of the inner cylinder 3 while allowing rotation thereof, and is connected to a liquid supply device (not shown) via a hose 6.

Reference numeral 7 denotes an operating shaft protruding from the closed end 4 of the inner cylinder 3, and a cylinder device 9 is connected to the operating shaft 7 via a lever 8.

In the above configuration, in the illustrated position where the cylinder device 9 is extended, the liquid injection holes 1a and 3a of both the outer cylinder 1 and the inner cylinder 3 are aligned, and the injection liquid fed from the liquid supply device is injected. It flows out from holes 1a and 3a.

Then, when the cylinder device 9 operates to reduce,
The inner cylinder 3 rotates and the position of the liquid injection hole 3a is adjusted to the outer cylinder 1.
The liquid stops flowing out from the liquid injection hole 1a.

In addition, in the figure, 10 is a coupling fitting for removably attaching the outer cylinder 1 to a connecting piece 11 protruding from the mounting member 2, and 12 is a coupling fitting for connecting the liquid supply port 5 and the hose end. By removing the coupling fittings 10 and 12, the outer cylinder 1 and the inner cylinder 3 can be disassembled, making it possible to clean the inside thereof.

As mentioned above, the inner cylinder 3 is slidably connected to the outer cylinder 1 and is rotatable.
In the case of a configuration in which the outer cylinder is fitted, the inner surface of the outer cylinder and the outer surface of the inner cylinder form a rigid sliding surface. ，
3, which caused various troubles. Handling was sometimes restricted due to the properties of the injected liquid, and it was also difficult to disassemble and assemble during internal cleaning.

(Purpose of the invention) This invention was made in view of the above points, and does not have a rotating part that slides into contact with the outer cylinder, so that the liquid injection hole formed in the outer cylinder can be opened and closed quickly and reliably. Furthermore, the present invention aims to provide a liquid injection device that is easy to disassemble and assemble, and has improved workability.

(Structure of the invention) Hereinafter, embodiments of this invention will be described based on the drawings.

Fig. 1 is a sectional view showing the main parts of the liquid injection device of this invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a left side view of Fig. 1, and Fig. 4 is a sectional view of Fig. 1a. It is an enlarged sectional view in the -a line.

Parts common or equivalent to those in FIG. 5 are given the same reference numerals.

In this invention, the elastic tube 13 is supported within the outer cylinder 1 via the holding member 14.

The holding member 14 is an end plate 1 fitted to both ends of the outer cylinder.
5, 16, and a holder 17 which is installed between both end plates and holds the elastic tube 13 with the lower part left behind. The cross section is made into an inverted trapezoid, and the lower part exposed from the holder 17 is attached to the outer cylinder 1.
facing the liquid injection hole 1a, and this lower part is made thinner than other parts to form a surface 13a for the time being;
Under normal conditions, the corresponding surface 13a is recessed inside the inner elastic tube by the elasticity of the material itself, and expands outward under pressure of the working fluid inside the elastic tube to close the liquid injection hole 1a. There is.

At the end where the outer cylinder 1 is connected to the liquid supply port 5, the end of the elastic tube 13 is closed by a sealing member 18, and the end of the elastic tube 13 is closed at the end where the outer cylinder 1 is attached to the connecting piece 11. The end of the elastic tube 13 communicates via a tube 19 with a working fluid supply passage 20 provided through the connecting piece 11, and the passage 20 is connected to an air compressor 21 via a control valve 22.

In addition, 23 in the figure is a liquid passage hole provided in the end plate 16, and 24
shows the control mechanism of the control valve 22, and the control valve 22 operates to remove high-pressure air from the elastic tube 13 at the same time as the supply of compressed air from the air compressor 21 is stopped.

(Function) In the above configuration, this device is configured such that when compressed air (working fluid) from the air compressor 21 is supplied into the elastic tube 13a through the control valve 22, the elastic tube 13a For the time being, the portion 13a bulges outward and closes the liquid injection hole 2.

When the control valve 22 is switched by the control mechanism 24, the supply of compressed air to the elastic tube 13 is stopped and at the same time, the high pressure air from inside the elastic tube 13 is removed.
3a is recessed into the elastic tube 13, and a liquid injection hole 1a is opened through which the liquid to be injected, which has been previously pressurized and fed from the liquid supply device to the outer cylinder 1, flows out. When the control valve 22 is switched again by the control mechanism 24, the surface 13a of the elastic tube 13 bulges outward, causing the liquid injection hole 1a to bulge outward.
will be closed.

(Effects of the invention) As described above, in this invention, a liquid injection hole is bored in the lower part of an outer cylinder fixed horizontally, an elastic tube is supported inside the outer cylinder via a holding member, and the elastic tube is Forms a surface facing the liquid injection hole in a part of the elastic tube, and the corresponding surface is concave in the elastic tube when the working fluid in the elastic tube is under no pressure, and expands outward when the working fluid in the elastic tube is pressurized. Since it is configured to close the liquid hole, it does not have a sliding surface compared to the conventional liquid injection device shown in Fig. 5, which has an inner cylinder fitted into an outer cylinder so as to be able to slide and rotate. It operates reliably and can be expected to provide stable liquid injection over a long period of time, and there are no restrictions on the properties of the injection liquid that can be handled, making it suitable for use in food processing lines to sprinkle various types of viscous sauces on food. Its practical effects are great, such as the internal cleaning after use and the fact that it requires no effort to disassemble and assemble, making it easy to maintain.

[Brief explanation of drawings]

Fig. 1 is a sectional view of this invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a left side view of Fig. 1, Fig. 4 is an enlarged sectional view taken along line a-a in Fig. 1, Fig. 5 is a sectional view showing the main parts of a conventional liquid injection device, and Fig. 6 is Fig. 5b.
It is a cross-sectional view in the -b line. 1... Outer cylinder, 2... Mounting member, 3... Inner cylinder, 4
...Blocked end, 5...Liquid supply fitting, 6...Hose, 7
...Operating shaft, 8...Lever, 9...Cylinder device, 10, 12...Joining metal fittings, 11...Connection piece,
13... Elastic tube, 14... Holding member, 15, 16
... end plate, 17 ... holder, 18 ... sealing member, 19 ... pipe, 20 ... working fluid supply passage, 2
1... Air compressor, 22... Control valve, 23
...Liquid port, 24...Control mechanism.

Claims (1)

[Scope of utility model registration request] A liquid injection hole is formed in the lower part of the outer cylinder which is horizontally fixed by a mounting member, an elastic tube is supported within the outer cylinder via a holding member, and a part of the elastic tube is provided facing the liquid injection hole. The surface is configured such that when the working fluid in the elastic tube is applied to the inside of the elastic tube, the corresponding surface is recessed into the elastic tube, and when the inside of the elastic tube is pressurized by the working fluid, it bulges outward to close the liquid injection hole. A liquid injection device featuring: