JPH0493007A - Wound mold - Google Patents

Abstract

PURPOSE:To remove coils easily by inserting one end of a wire rod into the groove of a core metal to make winding after each slide core of the core metal is moved to the outermost position and by moving each slide core inward to generate a gap between the outer peripheral face of each slide core and the inner peripheral face of a coil. CONSTITUTION:Keeping all slide cores 4 located at the outermost position from a core metal area 2 allows them to function as the core metal. After a mount shaft 9 of this wound mold is mounted in a rotary mechanism, one end of a wire rod is inserted and hooked into the groove 2b of the core metal area 2 to rotate the wound mold for coil winding. Wher coil winding is finished, an eccentric cam 3 is swung counterclockwise by manual operation. This action pull a slide core 4 back toward the center of the core metal area 2 by the tensile force of a spring 5 with the result that a gap is generated between the tip of the sector area of the slide core 4 and the inner periphery face of a coil. Subjecting 3-point slide cores 4 to this operation allows formation of a gap between three apex angles and the coil inner peripheral face, thereby facilitating removal of coils.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a winding form used when winding a wire into a square-shaped coil.

(Prior art) Conventionally, when forming a wire into the mouth-shaped coil (60) shown in FIGS. 9(a) and (b),
Using a winding form as shown in Figure 1, the core metal is rolled into multiple pieces with an inclined surface.
In this example, there are three core metals (52), (53), (5/
l), and the side plate (5],) by Pol 1~(56)
(55), and after inserting one end of the wire H into the groove (52a) provided on the mandrel (52), insert the side plate (51).
The winding form mounting shaft (57) provided on the lower surface is attached to a rotating mechanism to rotate the winding form to form a coil, and then the mandrels (52), (53), (54) are attached to the side plate (51),
Remove from (55) and take out the molded product. In this way, when forming a coil, the mandrel (
52), (53), (54) and side plates (5], )
, (55) Disassembly and 9 reassembly were repeated.

Therefore, you should be careful not to drop the core metal, and be careful not to drop it accidentally, which may cause damage to the core metal or injury.
This was an obstacle to achieving efficient coil forming work.

(Problems to be Solved by the Invention) As mentioned in Section 2, with conventional winding forms, it was necessary to disassemble the mandrel in order to remove the formed coil, which caused problems in terms of work efficiency and safety. . Therefore, an object of the present invention is to realize a winding former that does not require disassembly of the mandrel when removing a molded coil, and that is also an object of the present invention.

[Structure of the invention]

(Means for Solving the Problems) The winding form of the present invention has a side plate having a rectangular planar shape with rounded corners and a mounting shaft protruding from the center of one surface, and a surface of the side plate having the mounting shaft. a core protruding from the opposite surface concentrically with the mounting shaft, the outer peripheral edge of which is located inward from the square outer peripheral edge of the side plate and has a square shape with rounded corners for winding a wire in a coil shape; The three apex areas of the mandrel are formed into a slide core movable in the diagonal direction of the mandrel, and when each slide core is located at the outermost position, the mandrel The part has a rectangular shape with rounded corners and functions as a mandrel of the required size, and by retracting each slide core inward, a gap is created between the coil and the inner peripheral surface of the coil after winding. The coil is characterized in that it functions to facilitate removal of the coil.

(Function) In the winding form of the present invention, after each slide core of the mandrel is moved to the outermost position by manual operation, one end of the wire is inserted into the groove of the mandrel, and the winding form is moved. Rotate to wind the coil. After winding the coil, move each slide core of the mandrel inward by manual operation. This creates a gap between the outer peripheral surface of each slide core and the inner peripheral surface of the coil, allowing the coil to be easily removed.

(Example) Hereinafter, the present invention will be described in detail based on the example shown in the drawings.

A winding form according to an embodiment of the present invention is shown in FIGS. 1(a), (b) to FIG. 4(a), (b). Figure 1(a) is a front view;
FIG. 1(b) is a side view, FIG. 2 is a sectional view taken along the AA=3 arrow in FIG. 1(a), and FIG. 3 is a sectional view taken along the BB arrow in FIG. 1(a).
FIGS. 4(a) and 4(b) are a top view and a cross-sectional view, respectively, showing the vicinity of the eccentric cam in FIG. 1(,) in an enlarged manner.

As shown in FIGS. 1(a) and 1(b), the winding form has a rectangular planar shape with rounded corners, and a side plate with a mounting shaft (9) protruding from the center of one surface (lower surface in the figure). and the mounting shaft (
A mandrel that protrudes concentrically with 9) and is parallel to the rectangular outer rim of the side plate O) and has a rectangular outer periphery with rounded corners for winding the wire into a coil. It is equipped with part ■.

A guide groove (2a) recessed to a level below the upper surface of the side plate (2) is formed in each of the three apex areas of the mandrel (2). A groove (2b) for hooking the end of the wire is provided near the remaining one apex angle. The planar shape of the guide groove (2a) is a shape in which the apex part of the sector, a rectangular part extending toward the center in the diagonal direction of the mandrel part (■), and a narrow rectangular part beyond that are connected. ing. Then, as shown in Figures 2 and 3, the legs of the gate-shaped guide fitting 0 are fitted into the groove of the square part, and the legs are screwed into the core part ■ and beaten, and the inner surface of the legs is It is in line with the inner edge of the groove in the sector. Guide fittings (slide cores 0 made into a planar shape that fit into the guide grooves (2a) extending inside both legs of guide fitting 0) are fitted into each guide groove from the grooves of this fan-shaped part, and both legs of guide fitting 0 are fitted into each guide groove. Guided by the inner surface, the tip of the fan-shaped part of the slide core 0) is guided by the guide groove (2a
) and a position where the end of the rectangular portion of the slide core (a) abuts the end of the rectangular portion of the guide groove (2a). Further, the upper surface of the slide core 0) is approximately at the same level as the upper surface of the metal core part (2). There is a perforation (4a) approximately in the center of this slide core 0), and an eccentric cam (3) provided perpendicularly to the metal core (2) is fitted into this perforation (4a). By rotating (3), the slide core (a) moves.

As shown in Figures 2, 3, and 4 (a) and (b), the shaft part (3b) of the eccentric cam (3) is attached to the bottom plate of the guide groove (2a) of the core part It is rotatably fitted into the bushing (10) press-fitted into the bushing (10), and is prevented from being removed by a collar (2) screwed onto the lower end of the shaft (3b). The eccentric shaft portion (3a) is inscribed in the inner surface of the borehole (4a) of the slide core 0), and the non-eccentric shaft portion that has passed through the hole of the guide fitting (6) has a planar shape shown in FIG. Tsuba (′) as shown in a)
1.4) is formed. Now, when the eccentric cam (3) is rotated clockwise as shown in FIG. 1 formed on the head of the eccentric cam (3).
By rotating until the abutment surfaces (1, 4a) of (14) come into contact with the stopper surface (6a) formed on the upper surface of the guide fitting ■, the tip of the fan-shaped portion of the slide core ■ will be aligned with the guide groove (2a). It stops when it is in contact with the tip of the fan-shaped part of
By bringing each slide core (A) into this state, the mandrel part (■) will become a square with rounded corners, and will function as a mandrel.

In addition, as shown in Figure 2, in the narrow part of the guide groove (2a) near the center of the core, a coil spring (C) is inserted between the end of the groove and the end face of the slide core (A). It is installed in a stretched state, and when the eccentric cam (3) is rotated counterclockwise, the slide core 0) is pulled back toward the center of the metal core part ■ by the tension of the spring (c). As a result, the tip of the fan-shaped portion of the core (4) toward the slide 1 is separated from the tip of the fan-shaped portion of the guide groove (2a).

In the winding form of the embodiment of the present invention configured as described above, when forming a coil, first the eccentric cam (3) is manually rotated clockwise as shown in FIG. 4(a). , the slide core (A) is moved outward from the center of the mandrel part (2) by the suppressing action of the eccentric shaft part (3a). And the abutment surface (14a) of the collar (14) on the head of the eccentric cam (3)
When the guide fittings (0) are rotated until they come into contact with the stopper surface (6a) on the upper surface of the guide fitting (0), the tips of the sector-shaped portions of the stays 1 to core 0 contact the tips of the sector-shaped portions of the guide groove (28) and stop. Perform this operation for each slide core (4),
By moving all the slide cores to the outermost position from the center of the core (2),
The outer periphery becomes a square with rounded corners and functions as a mandrel.

After the mounting shaft (9) of this winding form is attached to the rotating mechanism, one end of the wire is inserted and hooked into the groove (2b) of the core metal part (2), and the winding form is rotated to perform coil winding. After winding the coil, manually rotate the eccentric cam (3) counterclockwise. As a result, the slide core (A) is pulled back toward the center of the mandrel part ■ by the tension of the spring 0, and a gap is created between the tip of the fan-shaped part of the slide core (A) and the inner peripheral surface of the coil. arise. Perform this operation on the three slide cores (A).
If this is done, gaps will be created between the three apex angles of the metal core part (2) and the inner circumferential surface of the coil, allowing the coil to be easily removed.

As described above, according to the winding form of one embodiment of the present invention, the state in which the mandrel part (2) functions as a mandrel and the wound-up coil can be easily made by simply rotating the eccentric cam (2). Can be removed and changed. Therefore, the work of disassembling and assembling the mandrel for forming a single coil using the conventional winding form is eliminated, and work efficiency is greatly improved. Also,
This eliminates the problem of damage to the core or injury to workers caused by accidentally dropping the disassembled core, improving safety.

Next, other embodiments of the present invention are shown in FIGS. 5(a), (b),
This will be explained with reference to FIGS. 6(a) and (b) and FIGS. 7(a) and (b).

In the embodiment shown in FIGS. 5(a) and 5(b), the side plate (21)
On the opposite side of the mounting shaft (9), there is a rectangular recess (2z) with rounded corners and the same shape as the core metal part with the required dimensions. A divided mandrel (23) and a mandrel center core (24) having the shapes shown in the figure are fitted into each other.

The north end surface of the mandrel center core (24) has a larger diameter than the lower end surface and is a conical surface with inclined side surfaces. ) is formed on a conical cylindrical surface with the same curvature that fits externally on the conical surface of

A threaded part (25) is provided at the center of the mandrel part of the side plate (21), and an operating screw (26) is screwed into the threaded part (25) through the center hole of the mandrel center core (24). ing. A flange (26a) is formed on the head of the mandrel Z6) and comes into contact with the upper surface of the mandrel core (24). In addition, at the apex angle of each of the four mandrels (23), four parts (23
a) is provided, and within this recess (23a), a side plate (21
) is installed with a compression coil spring (27) that generates a repulsive force with the inner wall of the apex corner of the four parts (22).

In the winding form of this modification, by screwing in the operation screw (26), the collar (26a) pushes down the mandrel center core (24), thereby each mandrel (24) is moved outward,
The tip of the apex comes into contact with the inner wall of the apex of the recess (22) of the side plate (21) and stops. At this time, the outer periphery of each mandrel (24) forms a mandrel of the required dimensions, so coil winding is performed in this state.

After winding the coil, by loosening the operating screw (26), each mandrel (23) is loosened by the repulsive force of the spring (27).
The coil recedes toward the center of the winding form, creating a gap between the coil and the inner circumferential surface of the rolled-up coil, allowing the coil to be easily removed. The winding form of this modification is characterized in that the states of the four mandrels (23) can be changed by operating one operating screw (26).

Next, in the embodiment shown in FIGS. 6(a) and 6(b), the side plate (
Slide cores (33) that are fitted into guide grooves (32a) provided diagonally in each of the three apex regions of the mandrel (32) of 31) and can move in the direction of the grooves are provided. Pins (34) are implanted on the two sides of each slide core (33). and an operating disk (35) having a circumferential long through hole (36) into which each of these pins (34) is inserted and whose distance from the center of the winding form changes continuously.
is positioned above each of the stays 1 to the core (33), and a boss is rotatably supported at the center of the winding form.

An operating shaft (35a) is provided protruding from the upper surface of the operating disc (35).

In the winding form of this modified example, the operating disc (35) is arranged so that the pin (34) of the slide core (33) is located far from the center of the winding form of the through hole (36) of the operating disc (35). By rotating each slide core (35), each slide core (35) will fit into the guide groove (
32a) into a position where it abuts the outer end of 32a) and functions as a mandrel. From this state, move the operating disc (35)
When the pin is rotated to φ, the pin is guided by the elongated hole (36) and the slide core (33) moves toward the center of the winding form. When this state is reached, each slide core (33) retreats to create a gap between itself and the circumferential surface of the rolled-up coil, allowing the coil to be easily removed. This example also applies to the fifth
Similar to the embodiments shown in Figures (a) and (b), the operation disc (35
) The feature is that the state of the three slide cores (33) can be changed with just one operation.

Next, in the embodiment shown in FIGS. 7(a) and 7(b), a slide core (43) that is movable in a diagonal direction is guided by a guide groove in each of the three apex areas of the mandrel (42). The embodiment is similar to the embodiments shown in FIGS. 6(a) and 6(b), but the means for moving each slide core (43) is different. That is, as shown in FIG. 7(b), the side plate (41)
A winding form mounting shaft (9) is provided protruding from the center of the surface opposite to the mandrel (42). Then, around this mounting shaft (9), four bearings (45) each having four bevel gears (44), each of which is in mesh with each other and whose axes are oriented in the diagonal direction of the winding form, project from the side plate (41). Provided with pivot support.

A screw 46) is cut into the shaft of the three bevel gears (44) whose shafts are parallel to the three slide cores (43), and each screw (46) is drilled into the side plate (41). The engagement legs (43a) of each slide core (43) are threaded into threaded holes (43b) of the engaging legs (43a) of each slide core (43), which extend to the lower surface of the side plate through the holes.

The operating shaft (47) of the remaining bevel gear (44) located below the side plate (41) without the slide core (43) is mounted on the bearing (4).
5) and extends outward from the outer peripheral edge of the side plate (41), and a handle (48) for rotating by hand is attached to the tip end thereof.

In the winding form of this example, the operating shaft (47
), each screw (46) is interlocked via the bevel gear (44), and each slide core (43) is interlocked via the engagement foot (43a) screwed into each screw (46). moves. By forward and reverse rotation of the operating shaft (47), the three slide cores (43) move outward and the mandrel (42) functions as a mandrel, and the three slide cores (43) move into the winding form. By retreating toward the center, gaps are created between the three apex angles of the mandrel (42) and the inner circumferential surface of the two-wound coil, so that the coil can be easily removed. This example also shows FIGS. 5(a), (b) and 6(a),
3 by operating only the operating shaft (47) as in the embodiment (b).
The feature is that the state of the two slide cores (43) can be changed.

〔Effect of the invention〕

As detailed above, according to the present invention, the three apex areas of the core metal part, which has a rectangular outer periphery with rounded corners for winding the wire into a coil, are aligned in the direction of the diagonal line of the core metal part. When each slide core is positioned at its outermost position, the mandrel part takes on a rectangular shape with rounded corners and functions as a mandrel having the required dimensions. By creating a winding form that functions to make it easier to remove the coil by retracting it inward, a gap is created between the coil and the inner circumferential surface of the coil after winding. The work of disassembling and assembling the mandrel when molding a single coil using a mold is eliminated, greatly improving work efficiency. Furthermore, the problems of damage to the mandrel and injury to workers caused by accidentally dropping the disassembled mandrel can be resolved, and work safety can be improved.

[Brief explanation of drawings]

1(a), (b) to FIG. 4(a), (b) show a winding form according to an embodiment of the present invention, and FIG. 1(a) is a front view;
Figure 1(b) is a side view, Figure 2 is a sectional view taken along the AA arrow in Figure 1(a), Figure 3 is a sectional view taken along the BB arrow in Figure 1(a), and Figure 4(a). and Fig. 4(b) are respectively Fig. 1(a).
5(a) and 5(b) show a winding form of another embodiment of the present invention, FIG. 5(a) is a top view, and FIG. Figure (1)) is shown in Figure 5 (a
), FIGS. 6(a) and 6(b) show winding forms of other embodiments of the present invention, FIG. 6(a) is a two-sided view, and FIG. 6(b) is a DD arrow view in Figure 6(a), Figure 7(a),
(b) shows a winding form of another embodiment of the present invention, and FIG. 7(a)
7(b) is a view from the FF arrow in FIG. 7(a), FIGS. 8(a) and (b) show the winding form of the prior art, and FIG. 8(a) is a side view, and FIG. 8(b) is F in FIG. 8(a).
The F arrow view and FIGS. 9(a) and 9(b) are a plan view and a side view of the coil, respectively. 1... Side plate, 3... Eccentric cam, 9... Mounting shaft, 23... Core metal 26... Operation screw, 32... Core metal part, 35... Operation disc, 42... Core metal part. , 2... Core metal part, 4... Slide core, 21... Side plate, 24... Core metal core, 31... Side plate, 33... Slide core, 41... Side plate, 43... Slide core. , 44-・Bevel gear, 47・Operation shaft. Agent Patent Attorney Norihiko Ogo (2a)

Claims (1)

[Claims] A side plate having a rectangular planar shape with rounded corners and having a mounting shaft protruding from the center of one face, and a side plate having a side plate protruding concentrically with the mounting shaft on a face opposite to the face having the mounting shaft of the side plate. The core metal part has a rectangular outer peripheral edge with rounded corners for winding the wire in a coil shape, and the three apex angles of the core metal part are The area is formed on a slide core that is movable in the diagonal direction of the mandrel, and when each slide core is positioned at the outermost position, the mandrel assumes a rectangular shape with rounded corners, and the mandrel has the required dimensions. The winding form functions to facilitate removal of the coil by creating a gap between the slide core and the inner circumferential surface of the coil after winding by retracting the slide core inward.