JP2578791Y2 - Iron core insertion machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an iron core inserting machine for alternately inserting an E-shaped iron plate and an I-shaped iron plate from the left and right sides of a coil.

[0002]

2. Description of the Related Art As shown in FIG. 9, an iron core inserting machine according to the present invention is an automatic or manual machine that mechanically inserts an E-shaped iron plate 2 and an I-shaped iron plate 3 from the left and right sides of a coil 1 alternately.

[0003] In this type of iron core insertion machine, the E-type iron plate 2 and the I-type iron plate 3 are each protruded one by one from a case accommodating the iron plate by a stroke of an iron plate feed claw by a projecting claw portion in one stroke. The I-shaped iron plate 3 is inserted into the coil 1 while being superposed on the iron plate 2.

What is required in this machine is a means for stopping the E-shaped iron plate 2 together with the iron plate feeding claw so as not to go back on the guide rail in the direction of the case when the iron plate feeding claw is moved backward. As a means, a check brake for checking the E-shaped iron plate is provided (Japanese Patent Publication No. 58-14060).

[0005]

[Problems to be Solved by the Invention] As a check structure provided in the check brake, a step-like check portion is provided, and the check brake presses the iron plate against the guide rail, and the step-like check portion has an iron plate. In the case of a conventional non-return brake having a mechanism for restraining reverse movement by hooking an end, while using an iron core insertion machine, a tip of an EI type iron plate for an EI type iron core having a relatively high hardness usually used for a transformer. However, by repeatedly hitting the stepped check part, the corners of the stepped check part gradually wear out, and as a result, the end of the iron plate does not stop at the check part without fail, A trouble occurs in which the feeding claw is moved backwards toward the case with the backward movement. Therefore, in order to prevent such troubles in advance, it is necessary to perform a maintenance operation such as always checking the iron core insertion machine and replacing the check brake with a new one when necessary.

In general, an iron plate is formed by press punching. However, the iron plate may be warped due to distortion during the press working. Particularly, in the case of an E-type iron plate 2 having short legs, the central portion is formed so as to swell. The side tip does not catch on the step of the non-return part, and the iron plate goes backward on the guide rail toward the case when the iron plate feed claw goes backward, and as a result, the iron plate is bent and the iron core insertion machine It may cause troubles such as stopping.

[0007] The purpose of the present invention is to provide
An object of the present invention is to provide an iron core insertion machine capable of reliably preventing the iron plate feeding claw from reversing at the time of reversing, and not reducing its performance even after long-term use.

[0008]

Means for Solving the Problems In order to achieve the above object, according to the present invention, an I-type iron plate is protruded from a case, and the I-type iron plate is placed at an intermediate position by the previous stroke of the iron plate feeding claw. In the iron core insertion machine, the operation of sending out and inserting into the coil while overlapping on the E-type iron plate is performed during one stroke of the iron plate feeding claw, the E-type sent out to an intermediate position by the E-type claw portion. A non-return brake that brakes the iron plate at both ends when the iron plate feeding claw is moved backwards so that the end on the coil holding portion side elastically abuts on the guide rail between the case and the coil holding portion. In order to prevent the E-type iron plate from moving backward, the E-type iron plate is brought into contact with the center portion of the E-type iron plate that travels in the direction of the coil holding portion and the central portion of the E-type iron plate. A non-return stopper having a vertical surface to be stopped is provided so as to be vertically movable one by one on the left and right sides.

[0009]

In the present invention, both ends of the E-shaped iron plate are pressed onto the guide rails by the coil holding portion side end of the check brake, so that the E-type iron plate is reversely moved when the iron plate feeding claw is moved backward. At the same time, the vertical surface of the check stopper is brought into contact with the center of the E-shaped iron plate
Prevents the E-type iron plate from going backwards.

[0010]

FIG. 1 is a front view of an iron core inserting machine according to an embodiment of the present invention, and FIG. 2 is a plan view of the iron core inserting machine.

A motor, a speed reducer, and the like (not shown) are accommodated in the base 4, and an operation switch 5,
A pilot lamp 6 and a manual handle 7 are mounted. A pair of front and rear side frames 8 are fixed on the base 4. The interval between the side frames 8 is fixedly determined by inserting the stay plate 9 therebetween. In the center of the side frame 8, coil holding claws 10, 10 'are provided as coil holding portions for holding the coil 1 or a coil bobbin around which the coil 1 is wound. Coil holding claw 1
The base of 0,10 'is fixed to shafts 11,11' and the shaft 1
The handle 12 is connected to 1 '. The shafts 11, 11 ′ are connected so as to be interlocked via opening and closing cams 13, 14. The coil holding claws 10, 10 'are always subjected to a force in a direction for holding the coil 1 or the coil bobbin by a spring (not shown). When the handle 12 is depressed, the coil holding claw 10, 10' is opened against the force of the spring. Enables detachment.

A case 1 for accommodating an E-type iron plate 2 and an I-type iron plate 3 at symmetrical positions of the coil holding claws 10, 10 '.
5, 15 'are provided. Since case 15 and case 15 'are symmetrical left and right, only case 15 will be described below.

A pair of narrow front and rear vertical plates 16 and a pair of wide front and rear vertical plates 17 are connected to the front and rear side frames 8.
It is fixed on the top by means such as welding. Vertical plate 16,1
The inner surface of 7 and the inner surface of side frame 8 are arranged on the same vertical plane.

FIG. 3 shows the side frame 8 and the vertical plate 1.
It is a front view which shows the inside of 6,17. Side frame 8
The guide rail 18 extends horizontally inside the
Is attached. Vertical plate 16 and side frame 8
A first partitioning column 19 is attached to the inner side surface of the first partitioning column.
The second partition column 20 and the third partition column 21 are attached to the inner surfaces of the vertical plate 17 and the side frame 8. The gap between the lower end surface of the second partitioning column 20 and the upper surface of the guide rail 18 is set to have a predetermined clearance with respect to the thickness of one E-shaped iron plate 2, and this gap is formed by the E-shaped projection. The mouth 22 is formed. An I-type receiving plate 23 is disposed above the guide rail 18 between the second partitioning column 20 and the third partitioning column 21 and below the third partitioning column 21, and the I-type receiving plate 23 is configured as shown in FIG.
As shown in FIG. 4 which is a cross-sectional view taken along the line A-A ′, an attachment portion 24 fixed to the side frame 8 is integrally provided. The gap between the lower end surface of the third partition column 21 and the I-shaped receiving plate 23 is the I-shaped iron plate 3
The gap is set so as to have a predetermined clearance with respect to the thickness of one sheet, and this gap forms the I-shaped projection 25. The gap between the lower surface of the I-shaped receiving plate 23 and the upper surface of the guide rail 18 is formed to be equal to or larger than the height of the E-shaped projection 22.

A space 26 for accommodating the E-shaped iron plate 2 is formed between the first partitioning column 19 and the second partitioning column 20, and an I-type space is formed between the second partitioning column 20 and the third partitioning column 21. A space 27 for accommodating the iron plate 3 is formed.

The top surface of the guide rail 18 is
9 is slightly higher, and this step 2
For 8, the E-shaped iron plate 2 is protruded without coming off from the E-shaped claw portion of the iron plate feeding claw described later.

Further, the upper surface of the guide rail 18 adjacent to the coil holding claws 10, 10 'is further raised to form a height rail portion 29.

The cases 15, 15 'and the coil holding claws 10,
10 ′, a total of 4 on the guide rail 18
A plurality of check brakes 30, 30 'are arranged respectively.

FIGS. 5A and 5B are diagrams showing details of the check brakes 30 and 30 '. FIG. 5A is a perspective view and FIG. 5B is a side view. The side surface of the check brake 30 is formed into a shape as shown in FIG. The end of the check brake 30 on the coil holding claw 10 side elastically contacts the upper surface of the guide rail 18 as shown in FIG. That is, the check brake 30
A protrusion 32 is provided on the side frame 8 side, and a bolt 34 into which a spring 33 is inserted passes through the protrusion 32 and is screwed and fixed to the side frame 8. Therefore, the spring 33 is connected to the head of the bolt 34 and the projection 32.
The check brake 30 is pressed onto the guide rail 18 by the spring 33. Also,
As shown in FIG. 4, the end of the check brake 30 on the case 15 side is inserted into a notch 31 provided in the third partitioning column 21.

Between the pair of front and rear check brakes 30 disposed on the guide rail 18, an E-shaped pressing roller 3 is provided.
5 is mounted by a shaft 36.

As shown in FIG. 4, a slide guide member 37 is fixed to a portion of the side frame 8 immediately below the guide rail 18, and a slide base 38 is slidable between the guide rail 18 and the slide guide member 37. Be placed. The slide base 38 is connected to an eccentric (not shown) arranged in an eccentric cover 39 (FIG. 1). The eccentric is connected to the speed reducer.

On the slide base 38, an iron plate feed claw 4 is provided.
0, 40 'is fixed. FIG. 6 shows the shape of the iron plate feeding claw 40. The iron plate feeding claw 40 includes an E-shaped claw portion 41 and an EI-type claw portion 42. The E-shaped claw portion 41 is provided on the guide rail 18.
Is higher by the thickness of the E-shaped iron plate 2 than the step portion 28 of FIG. Also, E
The I-shaped claw portion 42 is higher than the I-shaped receiving plate 23 by the thickness of the I-shaped iron plate 3.

FIG. 7 is a view showing details of the check stopper 43. FIG. 7A is a top view of the check stopper 43, and FIG.
7B is a side view, FIG. 7C is a top view of the check stopper receiving plate 44, FIG. 7D is a side view thereof, and FIG. 7E is a check stopper 43 and a check stopper. Backing plate 4
4 is an assembled perspective view of FIG.

As shown in FIG. 7B, the bottom surface of the check stopper 43 is formed obliquely, and along the groove 45 formed in the check stopper receiving plate 44 as shown in FIG. 7C. It is fitted, and is attached so as to be able to move up and down along the groove 45 by the attachment screw 46. As shown in FIG. 7D, the diameter of the mounting hole 47 formed in the check stopper receiving plate 44 is larger than the diameter of the mounting screw 46. Therefore, the check stopper 43 is provided in the check stopper receiving plate 44. The vertical plate 1 of the case 15 can move freely along the groove 45 of the plate 44 by the difference between the diameter of the mounting hole 47 and the diameter of the mounting screw 46.
When the tip of the check stopper 43 is horizontally mounted on the coil holding claw 10 side by the check stopper receiving plate 44 so that the tip of the check stopper 43 is at the same height as the guide rail 18, the tip of the check stopper 43 is guided. With the height of the rail 18 as the lowest position, the rail 18 can freely move upward in a predetermined range.

The bottom surface 43a of the check stopper 43
As shown in FIG. 7 (b), the E-type iron plate 2 and the I-type iron plate 3 are formed in an oblique shape such that the length in the vertical direction gradually increases in the traveling direction of the iron plate. When proceeding from the case 15 side toward the coil holding claw 10 side, the iron plates 2 and 3 can pass while lightly contacting the bottom surface of the check stopper 43, but in the reverse direction from the coil holding claw 10 side to the case 15 side. In this case, since the end of the E-shaped iron plate 2 hits the vertical surface 43b of the check stopper 43 and cannot pass through, the E-shaped iron plate 2 is prevented from moving backward to the case 15 when the iron plate feeding claw 40 moves backward. it can.

In the above description, the bottom surface 43a of the check stopper 43 has been described as an example in which the shape of the bottom surface is formed obliquely flat. However, the shape of the bottom portion of the check stopper 43 is not limited to this, and is uniform. It may be formed into a curved surface.

FIG. 8 is a longitudinal sectional view showing an operation state of the iron core inserting machine according to one embodiment of the present invention. The operation of the iron core inserting machine according to one embodiment of the present invention will be described with reference to FIG.

The coil bobbin 48 around which the coil 1 is wound is held by the coil holding claws 10, 10 '. FIG. 8 shows a state in which the slide base 38 has reached the rightmost position. When the operation switch 5 is turned on and the motor is driven, the slide base 38 starts moving leftward. E-shaped claw 4
1 hooks the bottom E-type iron plate 2 in the case 15 and
It protrudes from the mold projecting opening 22. At the same time, the EI claws 42 project the lowermost I-shaped iron plate 3 from the I-shaped projection 25.

At the position where the I-type iron plate 3 is separated from the I-type receiving plate 23, the E-type iron plate 2 carried by the previous stroke of the iron plate feed pawl 40 is placed. The mold iron plates 3 are stacked. The two iron plates 2 and 3 stacked in this manner are attached to the side frame 8 by the EI type claw portions 42.
And it is sent out so that it may be guided and pushed by the guide rail 18, and is inserted into the coil bobbin 48 from under the E-shaped iron plate already inserted into the coil bobbin 48.

On the other hand, the case 15 is
The E-shaped iron plate 2 sent out from the case is once carried to an intermediate position between the case 15 and the coil bobbin 48. When the tip of the E-shaped iron plate 2 enters the E-shaped pressing portion 49 which is the end of the check brake 30 on the coil holding claw 10 side,
When the slide base 38 starts to return, the iron plate feeding claw 40 starts to go backward. However, since the tip of the E-type iron plate 2 is pressed by the E-type pressing portion 49, the E-type iron plate 2 does not go backward in the direction of the case 15. . And the EI type claw part 4
When the wire 2 passes under the rear end of the E-shaped iron plate 2, the rear end of the E-shaped iron plate 2 is pushed up and is hooked on the vertical surface 43 b of the check stopper 43, so that the case 15 and the coil bobbin 48 Reverse movement of the E-shaped iron plate 2 carried to the intermediate position toward the case 15 is reliably prevented.

When the E-type claw portion 41 has completely passed,
The mold iron plate 2 falls on the guide rail 18.

The above operation is performed in exactly the same manner on the left side of the coil holding claws 10 and 10 ', and the left and right operations are alternately repeated, so that a predetermined number of E-type iron plates 2 and I-type iron plates 3 are attached to the coil bobbin 48. Inserted automatically.

When the central leg of the E-shaped iron plate 2 is warped upward, the E-shaped pressing roller 35 holds the E-shaped iron plate 2 on the E-type iron plate 2 inserted by the previous stroke. It functions to prevent the E-shaped iron plate 2 from being inserted.

[0034]

As described above, according to the present invention, both ends of the E-shaped iron plate are pressed onto the guide rails by the ends of the check brake on the coil holding portion side, so that the iron plate feeding claw is moved backward. In addition to braking the backward movement of the E-shaped iron plate at the time, the vertical surface of the check stopper is brought into contact with the central portion of the E-shaped iron plate to reverse, so that the backward movement of the E-shaped iron plate is prevented. It is possible to reliably prevent the iron plate from moving backward and prevent its performance from being deteriorated even after long-term use. In particular, since the vertical portion of the check stopper is applied to the central portion of the E-shaped iron plate to prevent reverse movement, the central portion is warped so as to rise.
Even if it is a shaped iron plate, it is possible to reliably prevent backward movement.
In addition, the pressing of the E-type iron plate by the check brake at both ends and the reverse movement prevention by the check stopper at the center of the E-type iron plate act on the E-type iron plate in a well-balanced manner. Can be.

[Brief description of the drawings]

FIG. 1 is a front view of an iron core inserting machine according to an embodiment of the present invention.

FIG. 2 is a plan view of the core insertion machine.

FIG. 3 is a front view showing the inside of a side frame and a vertical plate.

FIG. 4 is a sectional view taken along line AA ′ of FIG. 2;

FIG. 5 is a diagram showing details of a check brake.

FIG. 6 is a perspective view of an iron plate feeding claw.

FIG. 7 is a diagram showing details of a check stopper.

FIG. 8 is a longitudinal sectional view showing an operation state of the iron core inserting machine according to one embodiment of the present invention;

FIG. 9 is a perspective view showing a state in which an E-type iron plate and an I-type iron plate are inserted into a coil.

[Explanation of symbols]

 Reference Signs List 1 coil 2 E-type iron plate 3 I-type iron plate 4 base 5 operation switch 6 pilot lamp 7 manual handle 8 side frame 9 stay plate 10, 10 'coil holding claw 11, 11' shaft 12 handle 13 opening / closing cam 14, opening / closing cam 15, opening / closing cam 15, 15 'case 16 vertical plate 17 vertical plate 18 guide rail 19 first partition column 20 second partition column 21 third partition column 22 E-shaped protrusion 23 I-shaped receiving plate 24 mounting part 25 I-shaped protrusion 26 space 27 space 28 Step portion 29 Height rail portion 30, 30 'Check brake 31 Notch portion 32 Projection portion 33 Spring 34 Bolt 35 E-type pressing roller 36 Shaft 37 Slide guide member 38 Slide base 39 Eccentric plate cover 40, 40' Iron plate feed claw 41 E type claw part 42 EI type claw part 43 Check stopper 43a Bottom surface 43b Vertical Surface 44 check stopper receiving plate 45 groove 46 mounting screws 47 mounting hole 48 the coil bobbin 49 E-die pressing section

Claims (1)

(57) [Scope of request for utility model registration] 1. A case for accommodating an E-type iron plate and an I-type iron plate at symmetric positions of a coil holding portion for holding a coil, and the E-type iron plates are projected one by one below the case. Forming an E-shaped projection and an I-shaped projection which is disposed slightly above the E-shaped projection and from which the I-shaped iron plate is projected one by one, and reciprocates along the side frame and the guide rail; An iron plate feeding claw is provided, the E type iron plate is protruded from the case to the iron plate feeding claw, and is sent out to an intermediate position between the case and the coil holding portion. Stick out,
The operation of sending the I-type iron plate over the E-type iron plate placed at the intermediate position by the previous stroke of the iron plate feed claw and inserting it into the coil is performed during one stroke of the iron plate feed claw. In the iron core inserting machine formed with the EI-type claw portion, a check brake for braking the E-type iron plate sent out to the intermediate position by the E-type claw portion at both ends when the iron plate feeding claw reversely moves is provided by a coil. Two on the left and right sides are provided so that the end on the holding portion side elastically abuts on the guide rail between the case and the coil holding portion, and the E-shaped iron plate is not reversed. In order to stop, the bottom of the E-shaped iron plate that passes in the direction of the coil holding portion is allowed to pass through, and the E-shaped
One check stopper on the left and right with a vertical surface to stop the plate
A core insertion machine characterized by being able to move up and down at a time .