JPS6142395Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a throttle valve that adjusts the filling amount in a filling machine that injects and fills a fixed amount of liquid viscous material from the nozzle tip, such as when filling cream puffs with cream. It is something.

For example, when filling cream puffs with cream, it is important for product quality control to maintain a constant amount of cream.

However, the filling amount of a viscous material such as cream varies depending on changes in the temperature of the viscous material, slight differences in formulation, degree of mixing, etc.

Furthermore, with the throttle valve of a conventional filling machine, it is difficult to make minute adjustments to the filling amount, as will be described later.

This invention improves on the drawbacks of conventional filling machines, and aims to make the amount of viscous injection filling almost unaffected by changes in viscosity, and to make fine adjustment of the throttle valve easier. be.

Next, an embodiment of a conventional filling machine and filling will be explained with reference to FIGS. 1 and 2.

As shown in FIG. 1, when the cream to be filled into the puff cream puff 1 is put into the hopper 3 of the pump 2, the rotation of the pump 2 causes it to pass through the pipe 4 and the branch pipe fitting 5 and branch into the pipes 6 and 7. It reaches the inside of the manifold 8.

A storage section 9 is provided inside the manifold 8, and the cream is stored in this storage section 9 under pressure by the pump 2.

Next, to fill the cream puff 1 with cream, the manifold 8 is lowered, the nozzle 10 reaches the center of the puff, and the air cylinder 11 is activated.

A slide valve 12 connected to the air cylinder 11 via a joint has an opening that blocks the passage 13 in the closed state and matches the passage 13 in the open state.

When the air cylinder 11 is activated and the slide valve 12 is opened, the pressurized cream in the reservoir 9 passes through the opening of the slide valve 12 via the throttle valve 14 and the passage 13 and reaches the nozzle 10. .

When this filling process begins, the suction piston 15, which had been retracted, moves forward by a certain amount towards the passage 13 and serves to push out the cream in front of the piston 15 to the nozzle 10 as well.

After a certain period of time has passed after the slide valve 12 opens, the air cylinder 11 closes the slide valve 12.
is closed to complete injection and filling of a predetermined amount, and immediately after that, the suction piston 15 retreats by a predetermined amount.

This retraction of the suction piston 15 prevents the cream filling the passage below the slide valve 12 and the nozzle 10 from sagging due to gravity or expansion of air bubbles contained in the cream after the slide valve 12 is closed. It is for sucking cream.

If the slide valve 12 is kept open for a certain period of time, the amount injected and filled from the nozzle 10 should be constant, but there is a drawback that the filling amount changes if the viscosity of the cream changes.

In addition, in order to make the injection filling amount of each nozzle 10 uniform, one passage is provided for each nozzle 10 as shown in FIG.
A throttle valve 14 is interposed in the middle of the opening 14, and the area of the opening 14' is adjusted by slightly rotating the throttle valve 14 in the circumferential direction as shown in FIG.

When the opening is narrowed down considerably as shown in FIG. 4, even if the throttle valve 14 is slightly rotated, the relative variation in the cross-sectional area of the cream passage in the opening is large. The drawback was that the aperture adjustment was difficult to operate.

The present invention which solves the above-mentioned drawbacks is shown in FIG.

Reference numeral 8 in FIG. 5 indicates a manifold 8, which has a cream storage section 9 inside.

Reference numeral 13 denotes a passage for supplying cream downward, and in the middle of the passage 13 there is a slide valve 12 for supplying or blocking cream.

A throttle valve sleeve 16 is fixed to the manifold 8, into which a throttle valve 17 is inserted.

The throttle valve sleeve 16 is provided with a recess 18, as shown in the enlarged view of FIG. 6, in order to reduce the wall thickness around the opening.

The end face 19 of the throttle valve 17 is machined into a thin orifice shape.

The throttle valve 17 is screwed together with the throttle valve sleeve 16,
When the throttle valve dial 21, which is connected to the throttle valve 17 by a set screw 20, is rotated, the throttle valve 17 slides in the axial direction within the throttle valve sleeve 16 to open the opening 2.
Adjust the area of 2.

A scale is engraved on the circumference of the slope portion 23 of the throttle valve dial 21, and a scale is engraved in the axial direction on the outer periphery of the throttle valve sleeve 16. It has a structure that allows you to read it.

Inside the throttle valve 17 is a suction piston 1.
5, and performs the same function as a conventional filling machine.

Next, the operation of the present invention will be explained.

As with conventional filling machines, when the slide valve 12 is opened, the cream stored under pressure in the storage section 9 within the manifold 8 passes through the passage 13 and the opening of the slide valve 12 to the tip of the nozzle 10.

On the other hand, the suction piston 15 moves forward from the retreated position toward the passage 13 by a certain amount and pushes out the cream that has been sucked in to prevent dripping to the tip of the nozzle 10.

The slide valve 12 is returned to the closed state by the operation of the air cylinder 11 after a certain period of time has elapsed.

In this way, the quantitative filling from the nozzle 10 is completed, and the sucking piston 15 moves back by a certain amount to prevent the cream from dripping afterward, and sucks the cream filled in the nozzle 10.

When a plurality of nozzles 10 are arranged as shown in FIG. 1, the opening of the throttle valve 17 installed above each nozzle 10 is adjusted in order to equalize the amount of filling from each nozzle 10. must be kept.

The opening of the throttle valve 17 is adjusted as follows.

When the throttle valve dial 21 is turned by hand, the throttle valve 17, which is integrally connected to the throttle valve dial 21, rotates, and since the male thread of the throttle valve 17 is engaged with the female thread of the throttle valve sleeve 16, the throttle valve 17 is rotated in the axial direction. Slide.

In this way, the tip end 19 of the throttle valve 17 increases or decreases the opening area, and the throttle adjustment is performed.

The throttle of the throttle valve 17 can be easily adjusted by means of scales attached to the slope portion 23 of the throttle valve dial 21 and the outer periphery of the throttle valve sleeve 16.

Further, the increase or decrease in the aperture opening area is directly proportional to the rotation angle of the throttle valve dial 21, and the adjustment is extremely easy because the aperture area does not change rapidly.

Next, the viscosity of the cream changes depending on temperature changes, slight differences in formulation, degree of mixing, etc.
The problem of variation in the amount of cream passing through the throttle valve 7 is solved by providing an opening 22 in the throttle valve sleeve 16 and by making the end face 19 of the throttle valve 17 into a thin-bladed orifice shape.

This is based on the same principle as using a thin-blade orifice, which is not easily affected by the viscosity of oil, as a temperature (viscosity) compensation method for throttle valves used in hydraulic equipment. As in the case of , it was confirmed that the orifice effect improved the change in discharge amount due to change in cream viscosity.

Since the throttle valve 17 has a circumferential shape and the throttle is adjusted by sliding in the axial direction, it is possible to incorporate the back-back piston 15 inside the valve, and the filling machine can be made compact. Another advantage was that it facilitated disassembly and cleaning after operation, which is common in food factories.

As explained in detail above, the present invention has been able to solve the following drawbacks that have been a problem in conventional filling machines.

(1) Fine adjustment of the aperture, which was difficult until now, has become easier.

(2) It was possible to reduce the fluctuation in the filling amount due to the change in viscosity caused by the restriction of the throttle valve.

(3) Since the throttle valve has a cylindrical structure and the throttle is adjusted by sliding in the axial direction, it was possible to incorporate a back-back piston inside.

The filling machine described above can be used not only for cream puffs but also for a wide variety of liquid viscous substances.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the entire filling machine and one embodiment thereof, Fig. 2 is a sectional view showing the manifold of the conventional filling machine and its accessories, and Fig. 3 is a sectional view showing the squeezing mechanism of the conventional filling machine. Figure 4 is an A-loss view of the throttle mechanism of a conventional filling machine, Figure 5 is a sectional view showing the manifold of the filling machine of the present invention and its accessories, and Figure 6 is a diagram of the throttle mechanism in Figure 5. A cross-sectional view showing only the valve tip portion enlarged, and FIG. 7 is a view of B in FIG. 6. Code 1... Cream puff, 2... Pump, 3... Cream hopper, 4... Piping, 5...
... Branch pipe joint, 6, 7 ... Piping, 8 ... Manifold, 9 ... Reservoir, 10 ... Nozzle, 11 ...
Air cylinder, 12...Slide valve, 13
... Passage, 14 ... Throttle valve, 15 ... Suck-back piston, 16 ... Throttle valve sleeve, 17 ...
Throttle valve, 18... Recess, 19... Throttle valve end face,
20... Set screw, 21... Throttle valve dial, 22
...opening, 23...slope portion, 14'...opening.

Claims (1)

[Scope of utility model registration request] The liquid viscous material pressurized by the pressurizer is supplied to the manifold, and a certain amount of liquid viscous material is ejected from the storage part in the manifold through the slide valve and throttle valve that open and close, and a certain amount of liquid viscous material is released from the nozzle tip. A filling machine for filling a liquid viscous body, characterized in that the throttling amount adjustment mechanism of the throttle valve is an axial slide mechanism of the throttle valve, and the wall thickness around the throttle valve port is thinned in the shape of a knife edge.