JP4835306B2 - Stacked core manufacturing apparatus and stacked core manufacturing method - Google Patents

Description

  The present invention relates to an apparatus for manufacturing a laminated core and a method for producing the laminated core for forming a laminated core such as a stator of a rotating body from a strip-shaped sheet material.

Conventional core materials, such as a rotating machine, have been manufactured by punching a belt-like sheet material by press working and laminating a plurality of sheets to produce a laminated core.
For example,

JP-A-9-308143

In the manufacturing method according to this document, teeth are formed at a predetermined interval on one side, and between the adjacent teeth, from the one side to the other side, the notch of the concavity and the back end of the notch, A strip-shaped core material having a continuous expansion is punched out with a press, the strip-shaped core material is laminated, the laminated body of the strip-shaped core material is curved, and one end and the other end of the strip-shaped core material of the laminated body are curved. It is made to contact | abut and shape | mold into cyclic | annular form to form the core of a cylindrical rotary machine (refer FIG. 3).
In this case, when curving a continuous long core material P having the same shape formed by continuously pressing a long magnetic steel plate, the stator core C is wound up into a cylindrical shape while plastically deforming the thin portion. It is supposed to form.
According to such a manufacturing method, the yield and workability are said to be good.

  On the other hand, as a core material manufacturing apparatus, there is a manufacturing apparatus 1 shown in FIG. In this manufacturing apparatus 1, the belt-shaped sheet material S that has been conveyed is guided to the molding rollers 3 and 3 of the molding drive unit 2 through the conveying means to perform the molding process, and the winding drive unit installed at the center top of the apparatus. 4 is wound around a rotating metal core 5 using a driving source, and then the processed sheet material S is placed at a predetermined position by a cutting nipper 6 serving as a cutting means provided in the vicinity of the metal core 5. Each time it is cut, it is sequentially stacked on the lower end side of the cored bar 5, the take-out cylinder 7 disposed on the lower side of the apparatus is operated, the take-out part 8 takes out, and it is used for the following manufacturing process. .

Thus, in the manufacturing apparatus 1, the sheet material S winding and the sheet material S cutting have been executed separately. That is, in the manufacturing apparatus 1, a continuous sheet material S is formed and wound, wound a predetermined number of times, a cutting position is detected, and when the cutting position is detected, winding and feeding are stopped and stopped. It was cut with.
This is because if the sheet material S is cut without being stopped and wound while being fed, the cutting position of the sheet material S may be shifted and variations may occur.
Therefore, such a method has a problem that it takes time to wind up because it stops every time one is wound.
The present invention has been proposed in order to improve such problems, and a laminated core manufacturing apparatus capable of cutting with high precision at a predetermined number of turns and position while continuously winding the laminated core and the laminated core It aims at providing the manufacturing method of.

In order to solve the above-described problems, in the present invention, in claim 1, a forming unit 11 that feeds and forms the sheet material S to be processed, and a winding unit that winds up the sheet material S processed by the forming unit 11 12, disposed in proximity to the winding shaft 12 b of the sheet material S in the winding section 12, a cutting unit 13 for cutting the wound sheet material S at a predetermined position, the sheet material after cutting A core sheet take-up / cutting device 10 having a take-out portion 14 for taking out S, and the cutting portion 13 includes a cutting drive portion 13a and a mechanism connected to transmit power from the cutting drive. and 13b, through the cutting portion main body 13b, the winding shaft 12 b reciprocates in an axial direction parallel to, and a rotatably mobile cutting means 15 constituted, also via the cutting portion main body 13b, rotatably configuration, fixed cleavage ; And a step 16, these mobile cutting means 15 and the fixed cutting means 16, to rotate the winding shaft 12 b and synchronously in the winding section 12, the winding of the sheet material S in a predetermined winding An apparatus for manufacturing a laminated core is proposed in which the movable cutting means 15 is moved a number of times to cut the sheet material S.
According to the first aspect, the movable cutting means 15 is reciprocated while the movable cutting means 15 and the stationary cutting means 16 are rotated synchronously with the winding shaft 12 b in the winding portion 12. Thus, by cutting the wound sheet material S, it becomes possible to take the timing of the forming winding and cutting process at a high speed.

In the present invention, in claim 2, the molding portion 11 of the core sheet winding cutting device 10, by feeding the sheet material S to the molding unit 11, is subjected to processing for changing the thickness of the sheet width direction An apparatus for manufacturing a laminated core is proposed.
According Such in claim 2, sheet material S fed can facilitate the deformation into a substantially spiral shape.

In the present invention, the sheet material S to be processed is fed into the molding unit 11 and molded, and the molded sheet material S is wound by the winding shaft 12b in the winding unit 12 and wound. The movable cutting means 15 configured to rotate the sheet material S close to the winding shaft 12b and reciprocally move in the axial direction parallel to the winding shaft 12a, and the fixed cutting means configured to rotate. When the cut sheet 13 is cut at a predetermined position and the sheet material S after cutting is taken out, the movable cutting means 15 and the stationary cutting means 16 are synchronized with the winding shaft 12b. rotate Te, the mobile cutting unit 15 by reciprocating the axial direction parallel to the winding shaft 12 b at a predetermined number of turns, wound manufacturing method of the laminated core which is adapted to cut the sheet material S Propose.
According to such a third aspect, the forming process and the winding process of the sheet material S can be performed continuously, and the accuracy of the cutting position after processing can be ensured.

Further, according to the present invention, the sheet material S processed by the forming unit 11 at the start of operation according to claim 4 is driven on the basis of a preset winding number target value to drive the sheet material S of the sheet material S. Winding is started, and it is monitored whether or not the number of windings of the sheet material S has reached a value lower than the target value by a predetermined value. Drive to start receiving rotation of the sheet material S, when the winding number reaches a value less than a predetermined value with respect to the target value, reciprocating the movable cutting means 15 in the cutting unit 13, If the sheet material S is cut, the cut portion 13 is stopped and the cut sheet material S is taken out and the operation is continued, whether or not the number of windings has reached a predetermined value lower than the target value again. If the operation is stopped, the winding rotation operation is We propose a method for manufacturing a product layer core so as to stop.
According to the fourth aspect as described above, the rotation of the winding drive unit is the rotation of the winding drive unit, the molding drive unit, the cutting drive unit, the take-out drive unit, and the cutting drive unit 13a being rotated. When Rutotomoni preparative synchronization by controlling the movement of the reciprocating motion of the mobile cutting means 15 can be disconnected position accuracy while taking continuously molded winding ensured.

  According to the present invention, the sheet material S is cut by reciprocating the movable cutting means 15 while rotating the movable cutting means 15 and the fixed mold cutting means 16, and the molding portion 11 is molded. By continuously controlling the rotation of the drive unit 11a, the cutting drive unit 13a of the cutting unit 13, the take-out drive unit 14a of the take-out unit 14, and the cutting drive unit 13a in synchronization with the rotation of the take-up drive unit 12a, Thus, it is possible to provide a laminated core manufacturing apparatus and a method for manufacturing the laminated core that can be cut with high precision at a predetermined number of turns and positions while winding.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a laminated core manufacturing apparatus and a laminated core manufacturing method according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 schematically shows a core sheet winding / cutting device 10 provided in a laminated core manufacturing apparatus.
The core sheet take-up / cutting device 10 is formed by feeding a base material B and a body frame F erected on the base B to the sheet material S to be processed and forming it, and processing by the forming part 11. A winding unit 12 that winds up the sheet material S, a cutting unit 13 that cuts the wound sheet material S at a predetermined position, and a take-out unit 14 that takes out the sheet material S after cutting are assembled. Yes.

The molding unit 11 performs a predetermined molding process on the sheet material S conveyed by a conveyance unit (not shown), and includes a pair of molding rollers 11b and 11b. The molding driving unit 11a causes the winding unit 12 to It is the structure which sends in the sheet | seat material S which gave the shaping | molding process. The sheet material S is formed into an outer shape of a predetermined core of the rotating machine, for example, by a punching process or the like in a process before conveyance.
And by sending the sheet member S between the forming rollers 11b and 11b, although not shown in the figure, the thickness in the sheet width direction is changed (for example, tapered), and in this way, The sheet member S fed from between the forming rollers 11b and 11b is promoted to be deformed into a substantially spiral shape.

  The take-up unit 12 is provided with a take-up shaft 12b whose axis is parallel to the vertical axis direction in the drawing with the take-up drive unit 12a installed on the sub-frame Sf at the top of the main body frame F as a power source. ing.

  The cutting unit 13 includes a cutting drive unit 13a disposed beside the winding drive unit 12a at the top of the main body frame F, and a mechanism (not shown) coupled to transmit power from the cutting drive unit 13a. The cutting part main body 13b and the movable cutting means 15 configured to be movable up and down in the drawing through the mechanism in the cutting part main body 13b and the mechanism in the cutting part main body 13b are configured to be rotatable. And a fixed cutting means 16.

  The movable cutting means 15 and the fixed cutting means 16 of the cutting unit 13 can rotate, for example, once on the winding shaft 12b so as to be able to rotate synchronously with the winding shaft 12b in the winding unit 12. On the other hand, the movable cutting means 15 and the fixed cutting means 16 are set to rotate by two rotations. Therefore, this can be achieved by setting the rotational radius of the movable cutting means 15 and the fixed cutting means 16 and the dimensions of the winding shaft 12b. Moreover, you may make it achieve by controlling the motor which is each drive source to the control system mentioned later.

The core sheet winding / cutting device 10 as described above is equipped with a control system (not shown) in which an operation procedure for executing a winding / cutting process described later according to an operation command is set.
Then, the winding cutting process of the core sheet winding cutting apparatus 10 will be described based on the flowchart shown in FIG.
At the start of operation, the sheet material S is inserted between the molding rollers 11b and 11b by the operation of the molding drive unit 11a of the molding unit 11. The sheet material S is formed in a taper shape in the width direction and is pushed out from between the forming rollers 11b and 11b, whereby the sheet material S is promoted to be deformed in a spiral shape, and the sheet material in a spiral shape is thus formed. S reaches the winding shaft 12 b of the winding unit 12.

The winding unit 12 starts winding rotation by the operation of the winding drive unit 12a based on a preset winding number target value (STEP1, hereinafter S.1) (S.2).
The control system monitors whether or not the number of windings (the number of rotations of the winding shaft 12b) has reached a value (6) smaller than the target value (S.3).
When the number of windings reaches a value (6) smaller than the target value, the cutting drive unit 13a of the cutting unit 13 is driven to start receiving rotation (S.4), and the moving type cutting means 15 is received and raised (S.5).

Next, the control system monitors whether or not the number of windings has reached a state that is less than 1/2 of the target value (S.6), and has reached a state that does not satisfy 1/2 of the target value. In that case, the movable cutting means 15 is lowered to cut the sheet material S (S.7). Then, the control system monitors whether or not the target value of the initial winding number has been reached (S.8), and when the target value is reached, based on the target value of the next winding number (S.9). The operation is continued and the movable cutting means 15 is raised (S.10).
Next, the movable cutting means 15 is received and lowered (S.11), the cutting drive unit 13a of the cutting unit 13 is stopped, the receiving rotation is stopped (S.12), and the takeout drive unit of the takeout unit 14 is stopped. The workpiece (the cut spiral sheet material S) is taken out while the take-out part 14 is rotated by driving 14a (S.13).
And when continuing winding cutting operation (S.14), it returns to step 3, and if operation is stopped, operation | movement of the winding drive part 12a of the winding part 12 is stopped (S.15). The series of winding and cutting operations ends.

  As described above, in the winding and cutting step, when the number of windings (the number of rotations of the winding shaft 12b) reaches the predetermined number of half rotations, the movable cutting means 15 starts to move up and down, The sheet material S can be cut by the number of windings. In this case, the movable cutting means 15 and the stationary cutting means 16 are always rotated at two rotations with respect to one rotation of the winding shaft 12b in order to synchronize with the rotation operation of the winding shaft 12b.

As described above, the movable cutting means 15 and the stationary cutting means 16 are always rotated in synchronization with the winding shaft 12b, and the movable cutting means 15 is moved up and down by a predetermined number of turns. The sheet material S can be cut at a highly accurate position while spirally forming the sheet material S.
Then, the cut spiral sheet material S can be received at the rotating take-out portion 14 while being rotated from the take-up shaft 12b, and the rotation of the take-out portion 14 can be stopped and sent out to the next step.

It is an abbreviated and typical whole explanatory view showing one embodiment of a core sheet winding cutting device used for a manufacture device of a lamination core concerning the present invention. It is a flowchart for demonstrating operation | movement of the core sheet winding cutting device shown in FIG. It is perspective explanatory drawing which shows an example of the manufacturing method of the lamination | stacking core in the conventional rotary machine. It is an abbreviated and typical whole explanatory view showing an example of the conventional core sheet winding cutting device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Core sheet winding cutting device 11 Molding part 11a Molding drive part 11b Forming roller 12 Winding part 12a Winding drive part 12b Winding shaft 13 Cutting part 13a Cutting drive part 13b Cutting part main body 14 Extraction part 15 Mobile cutting means 16 Fixed die cutting means S Sheet material B Base F Body frame Sf Subframe

Claims (4)

A molding part (11) for feeding and molding the sheet material (S) to be processed;
A winding part (12) for winding the sheet material (S) processed by the molding part (11);
The winding portion (12) disposed in proximity to the winding shaft (12 b) of the sheet material (S) in the cutting unit for cutting the wound sheet material (S) is at a predetermined position (13) When,
In the laminated core manufacturing apparatus including the core sheet winding / cutting device (10) having the take-out portion (14) for taking out the sheet material (S) after cutting ,
The cutting part (13) is
A cutting drive unit (13a);
A cutting unit body (13b) having a built-in mechanism coupled to transmit power from the cutting driving unit ;
Via a mechanism in the cutting body (13b), said winding shaft (12 b) to reciprocate in an axial direction parallel and rotatable in the mobile cutting means (15),
A fixed cutting means (16) configured to be rotatable via a mechanism in the cutting body (13b) ;
If it is provided with a,
The movable cutting means (15) and the fixed cutting means (16) are rotated synchronously with the winding shaft (12 b ) in the winding section (12) , and the sheet material (S) is wound. An apparatus for producing a laminated core , wherein the movable cutting means (15) is moved at a predetermined number of turns to cut the sheet material (S) . Wherein the forming of the core sheet winding cutting device (10) (11), wherein the molding unit (11) by feeding the sheet material to (S), so that can be subjected to processing for changing the thickness in the sheet width direction It is comprised by these , The manufacturing apparatus of the laminated core of Claim 1 characterized by the above-mentioned . Sheet material to be processed (S) is molded by feeding to the molding unit (11), the winding, the wound by the winding shaft (12 b) The molded sheet material (S) is in the winding section (12) sheet material of (S), as well as close to the winding shaft (12 b), the winding shaft (12 b) to reciprocate in an axial direction parallel and rotatable in the mobile cutting means (15 ) And a fixed cutting means (16) configured to be rotatable, and the cutting part (13) is cut at a predetermined position to take out the cut sheet material (S). cutting means (15) and fixed cutting means (16) is rotated in synchronism with said winding shaft (12b), the mobile cutting means at a predetermined number of turns (15) the winding shaft (the 12 b) by reciprocating the axial direction parallel to, cutting the wound sheet material (S) Method for manufacturing a laminated core, characterized in that the so that. At the start of operation, the sheet material (S) processed by the molding unit (11) is driven based on a preset winding number target value to drive the winding unit (12) to wind the sheet material (S). And monitoring whether or not the number of windings of the sheet material (S) has reached a value lower than the target value by a predetermined value. ) To start receiving rotation of the sheet material (S), and when the number of windings reaches a value that does not satisfy the predetermined value with respect to the target value, the movable cutting means ( 15) is reciprocated to cut the sheet material (S), stop the cutting part (13) and take out the cut sheet material (S). Return to the step of monitoring whether or not the target value has reached a value lower than the target value. Method for manufacturing a laminated core according to claim 3, wherein the stopping the rotation operation.

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