JPH0617131B2 - Tube fitting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube fitting device for fitting a heat-shrinkable tube to the peripheral side surface of a rod-shaped envelope such as a round dry battery or a container mouth.

2. Description of the Related Art Conventionally, as this type of tube fitting device, Japanese Patent Publication No. 46-28320 and Japanese Patent Publication No. 50-326 have been provided by the present applicant.
There is one as shown in Japanese Patent Publication No. 76. 4th, 5th
The figure shows the structure of the pilot of the above-mentioned conventional tube fitting device.

The pilot consists of a support shaft 22 having a bevel toothed ring-shaped spline 21 projecting from the tip thereof, the spline 21 having a hem diameter substantially the same as that of the encapsulated article such as a dry cell, and a tip edge diameter substantially equal to that of the encapsulated article. A hollow pilot body 20 in which the notches 23 that engage with the spline are engraved at the tip of the hollow shaft, and the support shaft is made to be a sliding pair. The spline 21 is projected when the tube is received, and the tube is encapsulated. The spline was immersed in the hollow shaft when it was transferred to the.

Then, when the tube is transferred to the encapsulated article,
When the pusher 25 pushes the encapsulated article 29 as shown in FIG. 5, the tube 26 is prevented from moving by the guide frame 27, but the pilot is moved to the right side in the figure together with the encapsulated article. . As a result, the tube fitted in the hollow body is transferred to the encapsulated article.

Problems to be Solved by the Invention In the prior art, when the pusher 25 starts pushing the pilot to the right through the encapsulated article, the encapsulated article 2
There is a slight gap 28 between the tube 9 and the tube 26, and the encapsulated article is the spline 21 and the pilot body 20.
It is difficult to position the encapsulated article so that the centerline of the encapsulated article and the centerline of the pilot body are completely aligned with each other because the end surfaces thereof are only in contact with each other. As a result, the center position of the encapsulated article is displaced and the end of the article collides with the end of the tube, so that the tube may not be fitted properly. Therefore, in order to facilitate the transfer of the tube into the encapsulated article, it has conventionally been necessary to form the tube inner diameter to some extent larger than that of the encapsulated article.

Further, conventionally, since the pusher 25 forcibly pushes, if the encapsulated article collides with the edge of the pilot body, an unreasonable force may be applied to the encapsulated article to damage the product or device.

The present invention has been made in view of the above circumstances, and provides a novel tube fitting device that facilitates positioning of an encapsulated article with respect to a pilot and that elastically presses the encapsulated article. It is intended to solve the above problems.

Means for Solving the Problems Means for solving the above problems correspond to the first to third embodiments.
It will be described below with reference to the drawings.

According to the present invention, a pusher in which the pusher head 6 and the supporter 3 are attached to the pusher main body 1 via the spring 4, and the outer diameter of the encapsulated article is slightly larger than the outer diameter thereof, and the inner diameter thereof is slightly smaller than the tip portion 14 Comprises a pilot in which a pilot head 11 is immersably provided in a hollow pilot main body 10 formed in a taper shape toward the inside, and the pusher and the pilot are opposed to each other so as to be relatively movable on the same axis. The pushed article is pressed by the pusher head 6, and the edge of the pushed article is engaged with the tip end portion 14 of the pilot body 10 formed in a tapered shape so that the wrapped article is positioned. It is characterized by that.

Operation When the pusher head 6 presses the encapsulated article toward the pilot side, the encapsulated article slightly enters the taper 14 of the pilot body 10, and a slight misalignment between the center of the encapsulated article and the center of the pilot body is corrected to ensure positioning. To be done.

In this state, as the pusher further moves to the right in FIG. 2, the pilot also moves to the right, but the tube fitted to the pilot body is blocked by the guide frame and stopped, so the right side of the pusher is stopped. The tubes are transferred to the encapsulated articles by rows.

EXAMPLE FIG. 1 to FIG. 3 show an example of the present invention in which the encapsulated article is a round dry battery.

The tube fitting device of the present invention comprises a pusher part and a pilot part, and an exploded view of the device is shown in FIG. In the figure, reference numeral 1 is a pusher main body, and a fitting hole into which the shaft portion of the pusher head 6 is fitted is bored at the tip thereof, and a long hole 7 is provided in communication with the hole. The head of the pusher head 6 is formed to have a large diameter, and a hole is provided at the tip thereof so that the anode of the dry battery B can be fitted therein, while the other part constitutes a shaft part and the supporter 3 is fitted to the shaft part. The spring body 4 is fitted into the fitting hole at the tip of the pusher body 1 via the spring 4. Reference numeral 5 denotes a pin that is inserted into the pusher head 6 through the elongated hole 7 to restrict the movement of the pusher head 6. The supporter 3 is for supporting the tube T when the tube is fitted into the pilot, and the outer diameter of the supporter 3 is formed to be larger than the diameter of the tube T. The other end of the pusher body 1 has a cam follower mounting hole 2 Is provided, and a roller cam follower is mounted in the mounting hole 2 so that the roller cam follower follows the cam surface 9 of the cylindrical cam whose development view is shown in FIG.

The pilot body 10 is formed as a hollow body, the outer diameter of the hollow body is slightly larger than the outer diameter of the dry battery B, and the inner diameter is slightly smaller, and the tip portion 14 is tapered inward. . Therefore, when the dry battery is pushed in by the pusher head 6 as described later, the pilot head 11
Is pushed into the pilot body 10, the tip edge of the dry battery B is fitted into the tapered portion as shown in FIG. 2 (b), and the dry battery and the pilot are positioned so that the center lines thereof are completely aligned with each other.

Pilot head 11 is pin 1 inside the pilot body
It is fitted so as to move back and forth against the spring 13 via 2. The head of the pilot head 11 is formed in a conical shape, and the hem diameter thereof is substantially the same as the inner diameter of the pilot body 10, and it is possible to completely fit the inside of the hollow body up to the tip of the head. The conical head is projected from the pilot body 10 by the spring 13. A cam follower mounting hole 15 is provided at the other end of the pilot body 10 as in the pusher body 1.
A roller cam follower 16 is attached to the roller 5, and the roller cam follower 16 follows the cam surface 17 of the cylindrical cam.

Although not clearly shown in FIG. 1, in order to guide the head of the pilot head 11 so that the head of the pilot head 11 can be smoothly immersed in the pilot body 10, as in the conventional example shown in FIG. It is desirable to form guide splines on the tip side and both sides of the head of the pilot head 11, and FIG. 2 shows a case where splines 18 and 19 are formed on both sides of the pilot body and pilot head, respectively. Has been done.

Therefore, in that case, in the head of the pilot head 11, the root diameter of the spline 19 formed on the outer peripheral surface thereof is formed to be substantially the same as the inner diameter of the pilot main body 10, and as shown in FIG. When the pusher head 6 pushes the dry battery B in a state of protruding from the pilot body, the pilot head 11 is guided by the spline 18 of the pusher body as shown in FIG. It can be immersed in the pilot body until it matches the tip.

The third operation of the tube fitting device configured as described above
It will be described with reference to the drawings. FIG. 3 shows the turret developed in a plane for convenience of explanation, and the process proceeds from the left side to the right side in the figure.

The state (a) shows a state in which the tube T is expanded into a cylindrical shape by a tube opening mechanism (not shown), and the pilot gradually moves toward the tube side by the cam surface 17 as the turret rotates from this state. Upon approach, the pilot fits into the tube. Along with this, the pusher also rises slightly, the tube is supported by the supporter 3, and the tube is completely inserted into the pilot (b). After that, the pusher retracts, and in the state of (c), the dry battery B is supplied from the chute. This state is shown in FIG. 2 (a). After that, the pusher gradually rises, the anode of the dry battery is fitted to the tip of the pusher head 6, and the cathode portion is engaged with the pilot head 11. When it further rises, the pilot head 11 is pushed into the inside of the pilot body, and the edge of the dry battery comes into contact with the taper portion 14 at the tip of the pilot body. At that time, even if the center position of the dry battery is slightly deviated from the center position of the pilot, by pushing the edge of the dry battery into the taper part, the position is guided and corrected by the taper part. Positioning is possible ((d) state). This state is shown in FIG. 2 (b). Further, if the pusher and pilot are moved to the upper side in this state in this state, the tube T is prevented from moving by the guide frame 15 as shown in FIG. 2 (c), and the tube is relatively moved from the pilot body to the dry cell. After the transition, the tube is completely fitted in the dry battery (state ((e))). After that, both the pilot and pusher evacuate to open the dry battery, and the dry battery with the tube fitted is discharged from the turret.

Effects Since the present invention is configured as described above, it has the following remarkable effects as compared with the conventional one. (1) Since the tip of the pilot body is tapered for positioning, the dry battery Is guide-engaged with the taper and is reliably positioned on the pilot center line. Therefore, even if the tube is not much larger than the outer diameter of the dry battery as in the conventional case, it can be completely fitted, so that the yield of the product can be improved and the tube having the almost same diameter as the dry battery can be used. So the finish is beautiful.

(2) Since the pusher head and the supporter are supported by the pusher main body 1 by the spring, the tube can be elastically transferred and the dry battery can be elastically positioned on the taper. Therefore, since an unreasonable force is not applied to the tube and the dry battery, the tube, the dry battery and the device itself are not damaged.

[Brief description of drawings]

1 to 3 relate to an embodiment of the present invention, FIG. 1 is an exploded view, and FIG. 2A is an operation view of FIG.
2 (b) is a side sectional view in the same state (d), FIG. 2 (c) is a side sectional view in the same state (e), and FIG. FIG. 4 is a side view of a conventional pilot, and FIG. 5 is a conventional example corresponding to FIG. 1: Pusher body, 3: Supporter, 4: Spring,
6: Pushier head, 8, 16: Cam follower, 9,
17: cam surface, 10: pilot body, 11: pilot head, 13: spring

Claims (1)

[Claims] 1. A pusher in which a pusher head and a supporter are attached to a pusher main body via a spring, and an outer diameter slightly larger than an outer diameter of an article to be encapsulated, and an inner diameter slightly smaller than the outer diameter of the encapsulated article. A pilot pilot body is provided in a hollow pilot body that is formed in a tapered shape toward and away from the pilot body. The pusher and the pilot are arranged so as to be relatively movable on the same axis, and the pusher head is provided. The tube fitting device is characterized in that the encapsulated article is positioned by pressing the encapsulated article by the edge portion of the encapsulated article to engage with the tip of the tapered pilot body. .