JPH0584617A - Device for automatically press-fitting buried metal fitting - Google Patents

Abstract

PURPOSE:To press-fit a metal fitting immediately merely by supplying a parent material onto a step, and to automatically supply the metal fitting to be press- fitted next, in the press-fitting process. CONSTITUTION:As the press-fitting shaft 17 of a press-fitting device goes down, a metal fitting is press-fitted, and at the same time, the cylindrical cam 13 fixed to the top of the press-fitting shaft 17 goes down, so the lever 33 pressed against the cam face 14 of this cylindrical cam 13 rocks, and the metal fitting to be press-fitted next is supplied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a press-fitting device for press-fitting an embedded screw fitting into a synthetic resin molded product.

[0002]

2. Description of the Related Art Conventionally, when press-fitting an embedded screw fitting,
In the pre-press-fitting process, the tip of the metal fitting, the guide part, etc. are manually fitted into the prepared hole of the base material of the synthetic resin molded product, and since the press-fitting is required in the next process, manpower is required and the press-fitting speed is increased. I couldn't.

[0003]

SUMMARY OF THE INVENTION According to the present invention, the metal fitting can be immediately press-fitted only by supplying the base material onto the receiving metal, and the metal fitting to be next press-fitted is automatically supplied during the press-fitting process. The purpose is to

[0004]

[Means for Solving the Problems] In a press-fitting device that automatically supplies an embedded metal fitting and press-fits it into a prepared hole of a base material,
The press-fitting device includes a cylindrical cam provided on an upper portion of a press-fitting shaft into which a metal fitting is press-fitted, a lever pressed toward a cam surface of the cylindrical cam, and a lower end of the lever. The feeding metal that feeds to the bottom of the press-fitting shaft is connected to the lever as the press-fitting shaft descends, and the metal fitting to be press-fitted next is supplied as the press-fitting shaft rises. The press-fitting device is characterized in that it is sent out to.

[0005]

With the above structure, the press-fitting device of the present invention operates as follows. As the press-fitting shaft of the press-fitting device descends, the metal fitting is press-fitted, and at the same time, the cylindrical cam fixed to the upper part of the press-fitting shaft descends, so that the lever pressed against the cam surface of this cylindrical cam swings, Supply metal fittings that are pressed into.

Next, as the press-fitting shaft rises, the lever swings in the opposite direction by the cam surface of the cylindrical cam, and the metal fitting provided at the lower end of the lever is press-fitted below the press-fitting shaft. Send to. After that, the above operation is repeated, and the metal fitting is automatically supplied and press-fitted.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the press-fitting machine, and FIG. 2 is a side view of the press-fitting machine. In the figure, the machine is mainly composed of a column (8) and a column (8) extending upward from a money receiver (1). ), A pressure plate (2) that slides up and down, a holder (3) attached below the pressure plate (2), and a plurality of press-fitting devices (A) supported by the holder (3).

A stopper (7) is provided above the money receiver (1) to determine the lowering limit of the holder (3). A boss (4) for positioning the base material is provided on the money receiver (1). A metal fitting supply device (5) is mounted on the pressure plate (2),
The metal fitting supplied from the metal fitting supply device (5) is supplied to the press-fitting device (A) through the material supply pipe.

FIG. 3 shows a detailed sectional view of the press-fitting device (A). The press-fitting device (A) has a bracket (2
It is fixed by screws (27) through 6). The main shaft (10) of the press-fitting device (A) is provided with a screw (11) at its upper part and is fixed to the bracket (26) by a nut. Further, a cylindrical cam (13) is screwed onto the screw (11).

The cylindrical cam (13) has an internal thread inside the upper part and is screwed to the external thread of the main shaft (10). The inside of the lower part has a large diameter hole to receive the upper end of the presser spring (21) and the outside of the lower part is bulged, and the cam surface (14) that contacts the roller (35) of the lever (33) described later is used. ). (15) is a fixing screw.

At the lower end of the main shaft (10), a press-fit shaft (17) is held via balls (16) and pins (18). A presser foot (20) is attached to the lower part of the main shaft (10). The presser foot (20) is provided at its upper portion with a hole through which the spindle (10) slides, and holds the bracket (30). In the lower part, a hole (22) in which the press-fit shaft (17) slides is provided in the vertical direction, and a hole (39) in which the feed metal (37) slides from the lateral direction at a right angle to this hole (22). ) Is provided, and a hole (25) for supplying a metal fitting is further provided for this hole (39).

Further, a fall prevention spring (23) is fixed to the outside of the lower part of the presser foot (20), and its tip (24) is bent to form a hole.
It projects to (22) and prevents the metal fitting from falling. On the other hand, a rotation shaft (31) is attached to the bracket (30), and a lever (33) is movably attached around this shaft. This lever (33) is
A roller (35) is attached so as to be rotatable around (34). Further, a connecting rod (36) connected to the feed wire (37) is fixed to the lower portion of the lever (33). A spring (38) is arranged between the lever (33) and the feed wire (37). Since the lever (33) is constantly urged counterclockwise by the spring (32) arranged around the rotation shaft (31), the roller (35)
Always comes into contact with the cam surface (14) of the cylindrical cam (13).

The metal fitting supply pipe (6) is connected to the supply hole (25) through the material supply cap (40). Therefore, the supplied metal fittings are held in the supply hole (25), the material supply cap (40), and the supply pipe (6) in a laminated state.

4 to 6 explain the process of automatically press fitting the metal fitting. FIG. 4 (a) shows the initial state in which the press-fitting device (A) is at the most raised position. The metal fittings (C) are supplied and stacked in the material supply cap (40) of the press-fitting device (A), and the lever (33) has a roller (35) at the upper end and a cam surface () of the cylindrical cam (13). The feed wire (37) which is pushed up by 14) and connected to the lower end of the lever (33) is at the most advanced position.

In FIG. 4B, the holder (3) is lowered and the presser foot is
It shows a state in which the lower end of (20) is in contact with the upper end of the base material (B) arranged on the money receiver (1).

FIG. 4C shows the state in which the holder (3) is further lowered. Since the lowering of the presser foot (20) is blocked by the base material (B), the main shaft (10) and the cylindrical shape are Cam (13) is a presser spring
It descends against the spring force of (21) and the lever (33) moves to the cam surface (14).
Is swinging counterclockwise due to the descent of. By swinging the lever (33), the feed (37) moves to the right, and the metal fitting (C) is fed by two pieces in this embodiment.

FIG. 5D shows a state in which the holder (3) is lowered most, the spindle (10) is further lowered, and the press-fit shaft (17) attached to the lower part of the spindle (10) is the most. It is in a lowered state. In this state, the metal fitting (C) has not been inserted into the holding hole (22), so that blanking is performed.

FIG. 5 (e) shows a state in which the holder (3) is rising, and the cylindrical cam is moved along with the rise of the holder (3).
(13) and the main shaft (10) rise, and the roller (35) of the lever (33) rides on the cam surface accordingly, so the lever (33) swings clockwise and the feed wire (37) moves to the left. The lever (3
3) swings clockwise and the feed wire (37) moves to the left.
(C) is moved toward the holding hole (22).

FIG. 5 (F) shows the holder (3) in the most raised position, and the metal fitting (C) is fed into the holding hole (22).

FIG. 6 (g) shows a state in which the holder (3) is descending, and the metal fitting (C) fed into the holding hole (22).
Is held in the holding hole (22) by the tip (24) of the fall prevention spring (23).

FIG. 6C shows the holder (3) being further lowered, and the lowering of the presser foot (20) is blocked by the base material (B), but the cylindrical cam (13). ) Descends, so Fig. 4
Similar to (c), the lever (33) swings counterclockwise, and the next metal fitting (C ') is sent out.

FIG. 6 (i) shows a state in which the holder (3) is in the lowest position.
It is pressed into the hole of the base material (B) by 7).

After that, the metal fitting is automatically press-fitted by repeating the steps after FIG. 5D.

[0024]

The present invention has the following effects. (a) Since the metal fittings are automatically supplied together with the press-fitting work, the press-fitting work can be performed quickly and continuously. (b) It is not necessary to manually supply metal fittings for press-fitting work. Also, no electricity or fluid is required to supply the metal fittings. (c) It has a simple structure and is easy to handle.

[Brief description of drawings]

FIG. 1 is a front view of a press-fitting machine according to an embodiment of the present invention.

FIG. 2 is a side view of that of FIG.

FIG. 3 is a sectional view of a press-fitting device.

FIG. 4 is a process diagram showing a press-fitting process.

5 is a process diagram showing a press-fitting process following FIG. 4. FIG.

FIG. 6 is a process diagram showing a press-fitting process following FIG.

[Explanation of symbols]

 (A) Press-fitting device (B) Base material (C) Metal fitting (1) Receiving (2) Pressurizing plate (3) Holder (4) Boss (5) Metal fitting supplying device (6) Material supply pipe (7) Stopper (8) ) Column (10) Spindle (11) Screw (12) Nut (13) Cylindrical cam (14) Cam surface (15) Fixing screw (16) Ball (17) Press-fit shaft (18) Pin (20) Presser foot (21) ) Presser spring (22) Hole (23) Fall prevention spring (24) Tip (25) Supply hole (30) Bracket (31) Rotating shaft (32) Spring (33) Lever (34) Rotating shaft (35) Roller (36) Connecting rod (37) Feeder (38) Spring (39) Hole (40) Feeding mouthpiece

Claims (1)

[Claims] 1. A press-fitting device for automatically supplying an embedded metal fitting and press-fitting it into a prepared hole of a base material, wherein the press-fitting device comprises a cylindrical cam provided on an upper part of a press-fitting shaft for press-fitting the metal fitting.
It consists of a lever that is pressed toward the cam surface of the cylindrical cam and a feed wire that is provided at the lower end of the lever and that sends the metal fitting to the lower part of the press-fitting shaft. The lever is interlocked as the press-fitting shaft descends. An embedded metal fitting automatic press-fitting device characterized in that a metal fitting to be press-fitted next is supplied, and as the press-fitting shaft rises, a metal fitting to be press-fitted next is sent out below the press-fitting shaft.