JPH024676Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a cutting device for making a notch in the air intake valve body of a nipple for a baby bottle.

(Prior Art) Reference numeral 1 shown in FIGS. 5 and 6 is a conventionally well-known nipple for a baby bottle, with a milk suction port 1c at the tip of a nipple body 1' made of soft synthetic rubber such as silicone.
At the same time, a thin film-like and dome-shaped air intake valve element 1a' is formed in the flange part 1d at the rear edge of the main body 1' to bulge toward the inner side, and this air intake valve An air intake valve 1a is formed by making a notch 1b serving as a valve opening in the center of the distal end of the body 1a' to traverse the body 1a'.

The nipple 1 is molded without the cut 1a, and then the cut 1b is cut by a cutting device.

The above-mentioned cutting device B is as shown in FIG. Push-cutting blade 3 that cuts from the tip side
It consists of 2. The receiving pin 31 has the same diameter as the inner diameter of the air intake valve body 1a', and has a guide groove 33 in the center of its tip.
When inserting the air intake valve body 1a' into the receiving pin 31, the air intake valve body 1a' fitted onto the receiving pin 31 is held so as not to be crushed or displaced. Guide groove 33 for the cutting edge
It is inserted into the air intake valve body 1a' and guided along the center of the air intake valve body 1a'. Further, the push cutting blade 32 for cutting the notch 1b has a cutting edge shape as shown in FIGS. 9 to 11 in order to improve sharpness.

However, the above-mentioned receiving pin 31 does not sufficiently hold the air intake valve body 1a', and when making the cut 1b with the push-cutting blade 32, the air intake valve body 1a'
When a' is elastically deformed, the notch 1b may be deviated from the center of the air intake valve body 1a', or may not enter straight, but may be bent or cut with an incline.

In addition, the push-cutting blade 3 shown in FIGS. 9 and 10
Since the direction of the cuts 2a and 32b is not determined, they tend to be misaligned during cutting, and it tends to be difficult to align the cuts 1b with the center of the air intake valve body 1a'.

Furthermore, the push-cutting blade 32c shown in FIG.
This method has the disadvantage that the air intake valve body 1a' is easily deformed by the tapered cutting edge during cutting, and the end portion of the cut notch 1b is tapered and tends to tear.

Therefore, the conventional cutting device B has a cut 1b.
There was a relatively high probability of producing defective products in which the notch 1b was not cut straight or deviated from the center of the air intake valve body 1a'.

(Technical Problem) The technical problem of the present invention is to reduce the deviation and elastic deformation of the air intake valve body during cutting, and to prevent the center deviation of the push-cut blade.

(Means for Solving Technical Problems) The means taken by the present invention to solve the above-mentioned technical problems is that a thin film-like and dome-shaped air bulge is formed on the flange of the nipple body for a baby bottle. It consists of a receiving pin into which the intake valve body is fitted, and a flat-blade-shaped push-cutting blade that is supported so as to be able to move forward and backward with respect to the receiving pin and longitudinally cuts the air intake valve body fitted into the receiving pin from the tip side. The diameter of the receiving pin is made larger by a predetermined amount than the inner diameter of the air intake valve body, and a guide groove for inserting the cutting edge of the push-cut blade is provided in the center of the tip of the pin.

(Function) According to the above means, when the air intake valve body is fitted onto the receiving pin in an extended state, the air intake valve body is brought into close contact around the receiving pin by the elastic force generated by being stretched. When the push-cutting blade is moved forward, the cutting edge contacts the center of the tip of the air intake valve body in the above state at right angles, enters the guide groove of the receiving pin, and continues along the guide groove to open the air intake valve. Make a cut in the center of the body.

(Effects) Since the present invention is as described above, it produces the effects listed below.

Since the air intake valve body is fitted onto the receiving pin in a stretched state, the air intake valve body is less likely to be elastically deformed and is tightly attached to the receiving pin. Therefore, when cutting, the air intake valve body will not elastically deform and the cut will not be cut in a slanted or bent state, and the air intake valve body will not shift around the receiving pin and not be cut. will not shift from the center.

Since the air intake valve body in the stretched state is very easy to cut, the cut will be made smoothly and the cut will be clean.

Since the push-cutting blade has a flat blade shape, the cutting direction during cutting is determined, and it becomes easy to make the cut in alignment with the center of the air intake valve body. Furthermore, since both ends of the cut made by the push-cutting blade are cut at right angles, the ends of the cut will not be torn during use.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

Reference numeral 1 shown in FIGS. 5 and 6 is a well-known nipple for a baby bottle, and its collar 1d is provided with an air intake valve 1a.
A notch 1b is cut in the center of a' to serve as a valve opening.

The cutting device A shown in FIG. 1 cuts a notch 1b in the center of the tip of the air intake valve body 1a' in the nipple 1 for a baby bottle as described above, and at the same time opens a cross-shaped suction port 1c in the tip of the nipple. be.

The cutting device A includes a nipple jig 2 that holds the nipple 1, a receiving pin 3 that is attached and fixed to the nipple jig 2, a push-cutting blade 4 that cuts the notch 1b, and a cross-cutting blade 5 that cuts the mouthpiece 1c. , a cutter jig 6 to which the push-cutting blade 4 and cross-cutting blade 5 are attached, and which moves the double-edged blades 4 and 5 up and down.

A recess 2a is formed on the upper surface of the nipple jig 2, into which the tip of the nipple 1 is fitted from the flange 1d, so as to hold the nipple 1 in an inverted state, and an air intake valve 1a on the upper surface thereof is formed. A receiving pin 3 is vertically fixed at a position corresponding to .

The receiving pin 3 has a diameter larger than the inner diameter of the air intake valve body 1a' by a predetermined amount, is higher than the depth of the recess in the valve body 1a' by a predetermined amount, and has a rounded tip. In the center, a guide groove 3a for inserting the cutting edge of a push-cutting blade 4, which will be described later, is cut out in the circumferential direction of the nipple 1 and the flange 1d.

The cutter jig 6 is installed above the nipple jig 2, and its axis is aligned with the jig 2. This cutter jig 6 is supported by an operating mechanism 7 and moves up and down at a predetermined stroke, and a cross-cutting blade 5 is removably attached to a chuck 8 provided at the center thereof with the cross-cutting blade 5 facing directly downward. A push-cutting blade 4 is installed at a position directly above the received pin 3.

As shown in FIG. 7, the push-cutting blade 4 has a flat blade shape and has double-edged edges, and by fitting the rear end into the mounting hole 9 provided in the cutter jig 6, the cutting edge can be adjusted. Support it in a vertical position facing downward, and tighten the setscrew 1.
It is removably fixed to the jig 6 by the screw 0.

In addition, a press ring 11 is fitted to the outer periphery of the chuck 8 of the cutter jig 6, and the upper ends of the four guide rods 12 attached to the upper surface of the press ring 11 are connected to the upper end of the chuck 8 of the cutter jig 6.
It is supported in a vertically slidable manner on the main body of the
A compressed spring 13 is attached to the outer periphery of each guide rod 12, so that the pressing ring 11 can move up and down while being constantly urged downward by the spring 13. The pressing ring 11 presses down the flange 1d of the nipple 1 set in the nipple jig 2 from above during cutting, and is formed somewhat higher around the escape hole 14 into which the air intake valve body 1a' fits. The area around the air intake valve body 1a' is pressed intensively, so that the air intake valve body 1a' can be firmly held.

In order to accurately cut the notch 1b in the air intake valve body 1a' of the nipple 1, the cutting device A having the above-mentioned configuration is designed to The dimensions of each part of the blade 4 are important, and FIG. 7 shows an example of the dimensions that gave good results in the test.

Next, the functions of each part when cutting the notch 1b in the air intake valve body 1a' will be explained.

Fit the nipple 1 into the recess 2a of the nipple jig 2 from the tip side, and insert the air intake valve body 1a' of the collar 1d into the receiving pin 3.
and set it. Thereafter, the cutter jig 6 is lowered by the operating mechanism 7, and the push-cutting blade 4 cuts the air intake valve body 1a' into the incision 1b, and at the same time, the cross-cutting blade 5 cuts the cross-shaped suction opening 1c at the tip of the nipple 1. .

At this time, the press ring 11 that descends together with the knife jig 6 presses the flange 1 of the nipple 1 set on the nipple jig 2.
d is pressed from above and held between the upper surface of the nipple jig 2 and held so that the nipple 1 does not move during cutting. Furthermore, at this time, the air intake valve body 1a' is fitted into the relief hole 14 of the press ring 11, and is stretched in the radial direction and the expansion direction, and is brought into close contact around the pin 3.

When the knife jig 6 continues to descend, the push-cutting blade 4 releases the air intake valve body 1 which has been stretched as described above.
While cutting the center of a' from the tip, insert it into the guide groove 3 of the receiving pin 3, and cut the notch 1b.
At the same time, the cutting edge of the cross-cutting blade 5 comes into contact with the tip of the nipple 1 on the inner side, cutting off the mouthpiece 1c.

In the above cutting device A, the outer diameter of the receiving pin 3 is made larger than the inner diameter of the air intake valve body 1a', and the height of the pin 3 is made higher than the depth of the recess in the air intake valve body 1a'. Since the body 1a' can be further stretched and the mouthpiece 1c can be cut at the same time as the notch 1b, productivity can be improved.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing a cutting device embodying the present invention, Fig. 2 is an enlarged view of the receiving pin portion in Fig. 1, Fig. 3 is a vertical cross-sectional view of Fig. 2, and Fig. 4 is a plan view of the nipple jig, Figures 5 and 6 are perspective views showing the nipple, Figure 7 is a perspective view showing the dimensions of the push-cut blade, receiving pin, and air intake valve, and Figure 8 is a conventional cutter. Partially cutaway front view showing the device, Figures 9 to 1
FIG. 1 is a perspective view showing a conventional push-cutting blade. In the figure, A: cutting device, 1: nipple, 1a: air intake valve, 1a': air intake valve body, 1b: notch, 1d: collar, 2: nipple jig, 3: receiving pin, 3
a: Guide groove, 4: Push-cutting blade.

Claims (1)

[Scope of utility model registration request] A receiving pin into which a thin film-shaped and dome-shaped air intake valve body bulgingly formed on the flange of the baby bottle nipple body is fitted, and a receiving pin that is supported so as to be able to move forward and backward with respect to the receiving pin, It consists of a flat-edged push-cut blade that cuts vertically through the fitted air intake valve body from the tip side, and the diameter of the receiving pin is made a predetermined amount larger than the inner diameter of the air intake valve body, and the center of the tip of the pin is made larger than the inner diameter of the air intake valve body. A device for cutting air intake valves in baby bottle nipples, which has a guide groove into which the cutting edge of a push-cutting blade is inserted.