JPS5855635Y2 - Coil holding device for iron core insertion machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coil holding device that presses a coil bobbin placed on a coil holder of a core insertion machine and rising as a core iron plate is inserted downward during the insertion operation. It is something.

In a core insertion machine that inserts a core iron plate into a coil bobbin on which a coil has been wound, the coil bobbin is placed on the coil holder at the beginning of the insertion operation, and when the core iron plate begins to be inserted into the coil bobbin, the inserted core iron plate is inserted into the coil bobbin. The coil bobbin is supported by the front and rear leg portions of the iron plate being supported by the higher rail portion of the guide rail.

Since the iron core plate inserted later goes under the iron core plate that has already been inserted, the coil bobbin separates from the coil holder and gradually rises.

Conventionally, in order to properly insert the iron core plate into the coil bobbin, the coil bobbin was pressed downward by hand or with a weight during the insertion operation. There is the inconvenience of having to be attached to the machine, and the method of pressing with a weight requires a person to move the weight at the beginning and end of insertion.

An object of the present invention is to provide a coil holding device for a core insertion machine that can automatically shift the coil bobbin to a holding state and a holding state to a released state.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 only show the central part of the core insertion machine, and the case for accommodating the E-type iron plate and the I-type iron plate, the feed pawl, the non-return brake plate, etc. are omitted.

A pair of front and rear side frames 2 and 2' are mounted on the board 1, and guide rails 3 and 3 are installed horizontally inside the side frames 2 and 2'.
' is attached.

The guide rail 3.3' is provided with a raised height rail portion 4 in its central portion, as shown by dotted lines in FIG.

The E-shaped iron plate 5 and the ■-shaped iron plate 6 are stacked on top of each other and are carried along the side frames 2, 2' and the guide rails 3, 3' by the feeding claws.

Slide guide members 7, 7' are installed inside the side frames 2, 2' so as to be located below the guide rails 3, 3', and the guide rails 3.3' and slide guide members 7, 7' A slide base 8 is slidably arranged in between.

The slide base 8 is to which a feed pawl is attached.

The stay plate 9 defines the interval between the side frames 2 and 2'.

A coil receiving guide 1 is provided below the board 1 by a mounting post 10.
1 is fixed, and the coil holder 1 is fixed to the coil holder guide 11.
A screw shaft 13 fixed to 2 is attached by an adjusting nut 14 and a knurled nut 15.

The coil pedestal 12 has four coil stoppers 16,
A coil bobbin 17 is placed on the coil holder 12.

By loosening the adjusting nut 14 and the knurled nut 15, the position of the coil holder 12 can be adjusted up and down.

The position of the coil holder 12 is such that the upper edge of the center hollow part 18 of the coil bobbin 17 is 1.5 to
Adjusted to be 2mm higher.

The coil holding device 19 presses the coil bobbin 17 downward during the insertion operation of the core insertion machine.

The base of the arm 20 is rotatably connected to the substrate 1 by a pin 21.
mounted on top.

The arm 20 is positioned behind the coil bobbin.

The arm 20 is connected to the link receiver 24 by a link 22.23, is held in an upright position by keeping the link 22.23 horizontal, and falls away from the coil bobbin 17 by bending the link 22.23 downward. , move to a collapsed position.

A drive shaft 26 of a solenoid 25 is connected to the connection point of the links 22, 23 by a support pin 27.

When operated, the solenoid 25 raises the drive shaft 26 to keep the links 22.23 horizontal, and when it returns, the drive shaft 26 is lowered by the leaf spring 28 to fold the links 22.23 downward.

The solenoid 25 is attached to the board 1 by a mounting member 29.

A stopper 30 is fixed to the arm 20.

The guide collar 31 is slidably fitted to the arm 20 and comes into contact with the stopper 30, so that the force guide collar 31
The initial position of is determined.

A spring 32 is attached between the guide collar 31 and the stopper 30, and the spring 32 applies a downward force to the guide collar 31.

A key 33 fixed to the guide collar 31 fits into a keyway 34 of the arm 20, and rotation of the guide collar 31 is prevented.

A holder 35 is fixed to the guide collar 31.

The presser member 36 is attached to the holder 35 by a screw shaft 37 fixed to the presser member 36 made of rubber or the like passing through the holder 35 and screwed into the adjustment nut 39 .

A mold presser 39 is attached to the holder 35 with screws 40.

(2) A permanent magnet 41 is fixed to the lower surface of the mold presser 39.

When the solenoid 25 has returned, the arm 20 and the guide collar 31 are in the tilted position shown by the two-dot chain line in FIG. be.

When the switch of the solenoid 25 is turned on and the solenoid 25 operates, the drive shaft 26 rises and the links 22 and 23 are moved horizontally.
The arm 20 moves to an upright position and thus the hold-down member 3
6 is located directly above the coil bobbin 17.

The fixing position of the holder 35 to the guide collar 31 is adjusted, and the distance between the lower surface of the permanent magnet 41 and the height rail portion 4 is determined to be a predetermined value, for example, 3 mm.

When the adjusting nut 38 is loosened, the holding member 36 comes into contact with the upper part of the coil 42 wound around the coil bobbin 17, and is adjusted to be in a holding state, and then the adjusting nut 38 is tightened.

When the core insertion machine starts the insertion operation, in Fig. 2,
E-shaped iron plates 5 and ■-shaped iron plates 6 which are stacked alternately from the left and right sides of the coil bobbin 17 are sent by the feeding claws, and the central leg portion of the E-shaped iron plate 5 is placed in the center hollow portion 1 of the coil bobbin 17.
8, both the front and rear leg portions rest on the high rail section 4.

Since the E-type iron plate 5 sent later is inserted under the E-type iron plate 5 that has already been inserted, the coil bobbin 17 separates from the coil holder 12 and gradually rises.

As the coil bobbin 17 rises, the presser member 36, holder 35, and guide collar 31 also rise, so the spring 32 expands and its spring force acts as a force that pushes the coil bobbin 17 downward.

Due to this spring force, the E-shaped iron plate 5 and the ■-shaped iron plate 6 inserted into the coil bobbin 17 are sandwiched between the height rail part 4 and the upper edge of the center hollow part 18 of the coil bobbin 17, and are strongly pressed. , 6 are removed.

As a result, the iron plates 5 and 6 are tightly and tightly inserted into the coil bobbin 17, and there is no need to manually pack them later as in the conventional case.

The permanent magnet 41 attracts the uppermost I-shaped iron plate 6 when it springs up.

Since the top ■-shaped iron plate 6 is only placed on the E-shaped iron plate 5, when the iron plate 5.6 is inserted into the coil bobbin 17 at high speed and the coil bobbin 17 vibrates,
The top ■-shaped iron plate 6 may fall from the coil bobbin 17 onto the guide rail 3.3'.

If this happens, it becomes an obstacle to the insertion operation, causing trouble.

To prevent this, the uppermost I-shaped iron plate 6 is attracted by the permanent magnet 41.

When the counter detects that the insertion of a predetermined number of iron plates 5, 6 has been completed, the insertion operation is stopped, and in conjunction with this, the switch for the solenoid 25 is turned off, and the excitation of the solenoid 25 is cut off.

This lowers the drive shaft 26 and links 22.23.
is bent downward, and the arm 20 is centered on the pin 21.
It rotates clockwise in the figure and moves to the tilted position shown by the two-dot chain line.

Therefore, the presser member 36 moves from directly above the coil bobbin 17 and shifts to the presser release state.

In the illustrated embodiment, a solenoid 25 is used as the arm drive source.
Alternatively, a cylinder or the like can be used instead.

Also, without using the links 22, 23 and the link receiver 24,
The tore fishoid 25 may be arranged so that its drive shaft 26 moves in the horizontal direction, and the drive shaft 26 may be directly connected to the arm 20.

The present invention can be applied not only to an EI-type core inserter, but also to a core inserter that inserts only E-type iron plates (I-type iron plates are left alone).

In the present invention, an arm is installed on a board located behind the coil bobbin placed on the coil holder of the core insertion machine so that the arm can rotate between an upright position and a collapsed position in which the arm is tilted away from the coil bobbin. Attach the base of
An arm drive source is connected to the arm, which holds the arm in an upright position during operation and in a reclined position when returning.
A guide collar is slidably fitted to the arm, a coil holding member that contacts the upper part of the coil wound on the coil bobbin is attached to the guide collar, and a spring is provided to apply downward force to the guide collar. By operating and returning the drive source, the coil bobbin can be automatically shifted to a pressed state and a pressed release state, respectively.

In addition, when the coil bobbin rises as the iron core plate is inserted into the coil bobbin, the spring expands accordingly, and the spring force gradually increases, so that the force with which the coil holding member presses the coil bobbin reaches its maximum just before the end of insertion. This allows the iron core plate to be inserted tightly into the coil bobbin.

[Brief explanation of drawings]

Fig. 1 is a partially sectional side view showing one embodiment of the present invention;
The figure is a partially sectional rear view showing the coil holder seen at an angle of 90 degrees from that of FIG. 1. 1... Board, 12... Coil holder, 1
7... Coil bobbin, 19... Coil holding device, 20... Arm, 25...
Solenoid, 31...Guide collar, 32...
... Spring, 36 ... Pressing member, 42
······coil.

Claims (1)

[Scope of utility model registration request] The base of the arm is mounted on a board located behind the coil bobbin placed on the coil holder of the core insertion machine so that the arm can rotate between an upright position and a fallen position in which it falls away from the coil bobbin. An arm drive source that holds the arm in an upright position during operation and in a reclined position when returning is connected to the arm, and a guide collar is slidably fitted to the arm, and the upper part of the coil wound on the coil bobbin is connected to the arm. A coil holding device for a core insertion machine, in which a coil holding member that comes into contact with the coil holding member is attached to a guide collar, and a spring is provided to apply a force in a downward direction to the guide collar.