KR20210000480A - Progressive mold and progressive mold apparatus for testing wear property - Google Patents

Abstract

The present invention relates to a progressive mold for testing a wear property, which comprises: a punching module having a punching unit and a notching unit which penetrate three directions of at least a part of a target to form a processing unit surrounded by a first penetration unit, a second penetration unit, and a third penetration unit; and a bending module having a pressurization unit and a guide unit guiding a bending unit for bending the processing unit to form the bending unit. The guide unit can comprise a curvature unit having a surface having a predetermined curvature where the target comes in contact to concentrate pressure during bending of the target.

Description

TECHNICAL FIELD The progressive mold and progressive mold apparatus for testing wear property

The present invention relates to a wear evaluation progressive mold and apparatus, and more particularly, to a wear evaluation progressive mold apparatus for evaluating wear of a progressive mold.

In general, during the mass production process using a mold, the material is continuously supplied to the press to form dozens of pieces per minute. In this case, the mold temperature rises around the severely deformed area, resulting in a decrease in the formability of the material, or in severe cases, it may appear as a defect such as a crack, and may cause frequent defects. In addition, the increase in temperature of the mold may be a cause of shortening the lifespan due to premature wear of the mold surface due to the characteristics of the process of molding at high pressure.

Accordingly, in order to evaluate the wearability of the mold, a disk is made of a material and a pin is made of the mold material, and the volume change of the pin according to the sliding distance is measured to measure the amount of wear of the mold material. Evaluate.

The conventional method of evaluating a mold is to manufacture a material as a disc, but in the case of a thin plate, it is difficult to manufacture a disc for evaluation, or, by actually continuously working on a progressive mold, the moldability of the material, occurrence of defects, and wear of the mold. It is necessary to determine the degree, but it takes a lot of time and cost to test using an actual progressive mold, and there is a problem with the cost of the material required for the test.Therefore, the wear resistance of the mold using an actual progressive mold It is practically impossible to evaluate.

The present invention is to solve various problems including the above problems, and forms a bending surface capable of concentrating pressure and friction force on a part of the mold so as to accelerate the wear of the progressive mold, and the curvature of the bending surface The purpose of this is to provide a progressive mold wear evaluation device capable of shortening the test time and number of times and saving the specimen material by being able to test the frictional force of the bend surface according to various curvatures in a set of tests that are different from each other. . However, these problems are exemplary, and the scope of the present invention is not limited thereby.

In the wear evaluation progressive mold according to the idea of the present invention for solving the above problem, three directions of at least a portion of an object are penetrated to form a processed portion surrounded by a first through part, a second through part, and a third through part. A punching module in which a punching portion and a notching portion are formed; And a bending module in which a guide portion and a pressing portion are formed to guide the bent portion so that the bent portion can be formed by bending the processing portion, wherein the guide portion is configured to allow the object to concentrate pressure when the object is bent. The contact surface may include a curved portion formed with a predetermined curvature.

In addition, according to the present invention, the curved portion may have a concave surface in contact with the processing portion so that the processing portion can concentrate pressure formed on the guide portion when the processing portion is bent in the bending module.

In addition, according to the present invention, the curved portion may have a convex surface in contact with the processing portion so that the processing portion can concentrate pressure formed on the guide portion when the processing portion is bent in the bending module.

In addition, according to the present invention, the bending module may be separated and combined in a progressive mold.

In addition, according to the present invention, the punching module includes: a first punching module formed of a first notching portion and a first punching portion penetrating the object so that the first penetrating portion is formed in one direction of the processing portion; A second punching module formed of a second notched portion and a second punched portion penetrating the object so that the second through portion, which is the other surface of the processing portion, is formed; And a third punching module formed of a third notched portion and a third punched portion penetrating the object so as to form a third through portion connecting the first through portion and the second through portion.

In addition, according to the present invention, the bending module includes: a guide unit for guiding the processing unit so that the processing unit can be bent in a direction perpendicular to the processing direction of the object; And a pressing part protruding from the lower mold so as to bend the processing part along the guide part.

In addition, according to the present invention, the punching module is configured in plural so as to form a first processing unit and a second processing unit on the object, and the bending module is formed by bending the first processing unit formed on the object. A first bending module formed of a first guide portion and a first pressing portion so that a first bent portion may be formed; And a second bending module formed of a second guide portion and a second pressing portion so that a second bent portion may be formed by bending the second processing portion formed on the object.

In addition, according to the present invention, the curvature of the first curved portion formed in the first guide portion and the first curved portion formed in the second guide portion so that the concentrated pressure of the first bent portion and the second bent portion are different when the object is bent. 2 The curvature of the curved portion may be formed differently.

In addition, according to the present invention, a shear module formed of a fourth notched portion and a fourth punched portion so that the bent portion can be separated from the object may be further included.

A wear evaluation progressive mold apparatus according to another idea of the present invention for solving the above problem includes: an uncoiler that unwinds an object wound in a coil shape; A feeder that supplies the object released by the uncoiler to a predetermined length; And a progressive mold formed of an upper mold and a lower mold capable of compressing the object supplied from the feeder, wherein the progressive mold passes through at least a portion of the object in three directions, the first A punching module having a punching portion and a notching portion forming a processing portion surrounded by the penetrating portion, the second penetrating portion, and the third penetrating portion; And a bending module in which a guide portion and a pressing portion are formed to guide the bent portion so that the bent portion can be formed by bending the processing portion, wherein the guide portion is configured to allow the object to concentrate pressure when the object is bent. The contact surface may include a curved portion formed with a predetermined curvature.

According to an embodiment of the present invention made as described above, a bending portion capable of concentrating pressure and friction force on a part of the mold so as to accelerate the wear of the progressive mold, and the curvature of the bending surface are different. It is possible to provide a progressive mold wear evaluation device that can shorten the test time and the number of tests and save the specimen material by testing the frictional force of the bent surface according to various curvatures in a set of tests. Of course, the scope of the present invention is not limited by these effects.

1 is a view showing a wear evaluation progressive mold apparatus according to an embodiment of the present invention.
2 is a perspective view showing in detail a progressive mold according to an embodiment of the present invention.
3 is a perspective view showing a guide part of a progressive mold according to an embodiment of the present invention.
4 is a perspective view showing a guide part of a progressive mold according to another embodiment of the present invention.
5 is a perspective view showing a bending module of a progressive mold according to an embodiment of the present invention.
6 is a perspective view specifically showing a progressive mold according to another embodiment of the present invention.
7 is a perspective view specifically showing a progressive mold according to another embodiment of the present invention.
8 is a top view showing an object manufactured by a progressive mold according to another embodiment of the present invention.
9 is a view showing a curvature formed in each guide portion of a progressive mold according to another embodiment of the present invention.
10 is a perspective view showing a guide part of a progressive mold according to another embodiment of the present invention.

Hereinafter, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are provided to more completely describe the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows. It is not limited to the examples. Rather, these embodiments are provided to make the present disclosure more faithful and complete, and to completely convey the spirit of the present invention to those skilled in the art. In addition, in the drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description.

Hereinafter, embodiments of the present invention will be described with reference to the drawings schematically showing ideal embodiments of the present invention. In the drawings, for example, depending on manufacturing techniques and/or tolerances, variations of the illustrated shape can be expected. Accordingly, the embodiments of the inventive concept should not be construed as being limited to the specific shape of the region shown in the present specification, but should include, for example, a change in shape caused by manufacturing.

1 is a view showing a wear evaluation progressive mold apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view showing in detail the progressive mold 1000 of FIG. 1.

First, as shown in FIG. 1, the wear evaluation progressive mold apparatus according to an embodiment of the present invention includes a progressive mold 1000, a feeder 2000, and an uncoiler 3000.

As shown in FIG. 1, the uncoiler 3000 is a device that unwinds the object 10 wound in the form of a coil, and is formed on the tip of the wear evaluation progressive mold device to stably seat the coiled object and It is a device that can be rotated and is supplied between a pair of rollers whose rotation is controlled by a motor by uncoiling an object from the seated coil.

The feeder 2000 is a device that supplies the object 1 uncoiled by the uncoiler 3000 to the progressive mold 1000 with a predetermined length, and supplies the uncoiled object 1 to the progressive mold 1000 It includes a plurality of transfer rollers and guide rollers to be transferred to, and the transfer roller may be rotated by a motor.

The feeder 2000 is controlled so that the object 1 is continuously conveyed by one pitch by a length required for each step so that continuous processing can be performed, and the object 1 is accurately positioned and leveled in the progressive mold 1000. Processability and quality of products can be improved by allowing them to be processed at

Although not shown, the roller formed in the uncoiler 3000 and the conveying roller formed in the feeder 2000 may further include a control unit that can be interlocked with each other to control the object 1 so as to supply the same pitch by one pitch. .

The progressive mold 1000 is a device formed of an upper mold 1100 and a lower mold 1200 capable of compressing the object 1 supplied from the feeder 2000, and is a punching module 100, bending It may include a module 500 and a front end module 600.

As shown in FIG. 2, the punching module 100 penetrates at least a portion of the object 1 in three directions, so that the first through part 10, the second through part 20, and the third through part 30 A punched portion 110 and a notched portion 120 forming the processing portion 40 surrounded by) may be formed.

Specifically, in order to penetrate the object 1, a punching portion 110 is formed to protrude in the upper mold 1100, and a notched portion 120, which is an insertion portion, is formed as an insertion groove in the lower mold 1200. When the upper mold 1100 and the lower mold 1200 are merged, the punch part of the upper mold 1100 is merged while passing through the object 1 into the insertion groove of the lower mold 1200, so that the object 1 can be processed.

At this time, in the progressive mold 1000, the moving direction of the object 1 is the X-axis, the width direction of the object 1 is the Y-axis, and the progressive mold 1000 is combined and the object 1 penetrates. Is the Z axis.

The punching module 100 may be formed by punching a first through part and a second through part formed in the X-axis direction in the object 1 and a third through part connecting the first through part and the second through part. have. That is, a punching part 110 penetrating the object 1 in a'c' shape is formed in the upper mold 1100, and the punching part 110 has a'c' shape in the lower mold 1200 to correspond to the punching part 110 The notched portion 120 may be formed.

As shown in FIG. 2, the bending module 500 is a guide part 510 and a pressurizing part for guiding the bent part 50 so that the bent part 50 can be formed by bending the processing part 40. 520) may be formed.

The guide portion 510 guides the processing portion 40 so that the processing portion 40 can be bent in a direction perpendicular to the processing direction of the object 1, and the pressing portion 520 guides the processing portion 40. It is formed to protrude from the lower mold 1200 so that it can be bent along the part 510. For example, as shown in FIG. 2, a processing part formed on the object 1 passing through the punching module 100 ( 40) to be bent, when the upper mold 1100 and the lower mold 1200 are combined, the pressing portion 520 of the lower mold 1200 is processed to the side of the guide portion 510 of the upper mold 1100 The bent part 50 may be formed in the object 1 by pushing the part 40 and bending it.

The guide portion 510 may include a curved portion P in which a surface contacting the object 1 is formed with a predetermined curvature so that pressure can be concentrated when the object 1 is bent.

3 and 4 are perspective views illustrating guide portions 510 and 510-1 of a progressive mold according to various embodiments of the present invention.

As shown in FIG. 3, the curved portion P1 is a surface where the processing portion 40 contacts so that the pressure formed on the guide portion 510 when the processing portion 40 is bent in the bending module 500 can be concentrated. This can be formed concave.

Specifically, when the object 1 is inserted into the molding space of the progressive mold 1000 by the pressing portion 520, the curved portion P1 formed on the guide portion 410 is the progressive mold 1000. It may be formed in a section in which the pressure and the friction force with the object 1 are concentrated in a section in which the deformation of the object 1 occurs at the contact surface between the and the object 1.

The curvature P1 formed on the guide part 510 is the deformation of the object 1 from the point where the object 1 is bent in the Z-axis direction at the contact surface between the pressing part 520 and the object 1 to start deformation. It may be formed as a bent portion having a concave shape in the X-axis direction between the ending points, and a bent portion is formed in a concave shape in the object 1 bent along the bent portion and can be bent, and if necessary, the curved portion P1 The radius of curvature of) can also be modified.

In the guide portion 510 in which the curved portion P1 is formed, the pressure is concentrated on the object 1 due to the pressing portion 520 in the curved portion P1, so that the wear characteristics of the mold may be evaluated.

As shown in FIG. 4, the curved portion P2 is in contact with the processing portion 40 so that the pressure formed on the guide portion 510 ′ when the processing portion 40 is bent in the bending module 500 can be concentrated. The face can be formed convex.

Specifically, the curved portion P2 formed in the guide portion 510-1 is the object from the point where the object 1 is bent in the Z-axis direction at the contact surface between the pressing portion 520 and the object 1 to start deformation. Between the points at which the deformation of (1) ends, it may be formed as a bent portion having a convex shape in the X-axis direction, and the object 1 bent along the bent portion may be formed and bent in a convex shape. Accordingly, the radius of curvature of the curved portion P1 can also be deformed.

That is, one side of the progressive mold 1000 can evaluate the wear characteristics of the accelerated wear mold in which the curved portions P1 and P2 are formed, thereby reducing the test time and number of times, and saving the specimen material. Can have.

For example, in order to evaluate the wearability of the existing progressive mold, the wear of the mold tip is evaluated by molding the object 5000 times, whereas the present invention evaluates the wear of the progressive mold by molding 3000 times with the pressure concentration of the curved portion. This can reduce the test time and the number of tests, and thus has the effect of saving materials.

5 is a perspective view showing a bending module 500 of the progressive mold 1000 according to an embodiment of the present invention.

The bending module 500 may be separated and combined in the progressive mold 1000.

As shown in FIG. 5, after operating the progressive mold 1000 for a certain number of times or more, in order to evaluate the wearability of the progressive mold 1000, a curved portion P, which is a surface in contact with the object 1, is ) Forming the guide portion 510 and the pressing portion 520 can be separated.

That is, the progressive mold 1000 is made to be able to be coupled to and separated from the guide portion 510 and the pressing portion 520 with mold tips made of various materials, and assembled to the progressive mold 1000 of the present invention for wear resistance. Evaluation can be performed. In addition, in performing such abrasion evaluation, since the curved portion is formed, the test time and the number of tests are reduced compared to the conventional evaluation apparatus, and the material can be saved.

As shown in FIG. 2, the shear module 600 may be formed of a fourth notched portion 620 and a fourth punched portion 610 so that the bent portion 50 can be separated from the object 1.

For example, the fourth punched portion 610 of the upper mold 1100 and the fourth notched portion 620 of the lower mold 1200 formed with a predetermined length and a predetermined width in the Y-axis direction, which is the width direction of the object 1 As shown in FIG. 2, the product can be separated from the object 1 by penetrating the object 1, and the length of the sixth punching part 610 is at least longer than the width direction of the object 1 It may be formed so that the object 1 can be cut in the Y-axis direction in the width direction.

6 is a perspective view specifically showing a progressive mold according to another embodiment of the present invention.

As shown in FIG. 6, the punching module 100 may include a first punching module 100-1, a second punching module 200-1, and a third punching module 300-1.

The first punching module 100-1 includes a first notched part 120-1 penetrating the object 1 and a first punching so that the first through part 10-1 is formed in one direction of the processing part 40. The second punching module 200-1 is formed of the part 110-1, and the second punching module 200-1 penetrates the object 1 so that the second through part 20-1 is formed in the other direction of the processing part 40. It is formed of a notched part 220-1 and a second punched part 210-1, and the third punching module 300-1 includes a first through part 10-1 and a second through part 20-1. It may be formed of a third notched portion 320-1 and a third punched portion 310-1 penetrating the object 1 so that a third through portion 30-1 connecting the is formed.

For example, the first punching portion 110-1 and the lower mold of the upper mold 1100-1 formed to have a predetermined length and a predetermined width and spaced apart by a predetermined distance from the center line in the X-axis direction to the right of the moving direction of the object 1 The first notched portion 120-1 of the mold 1200 is merged, and as shown in FIG. 6, the object 1 is spaced a predetermined distance from the center line 1 to the right to the first through portion 10- 1) can be formed.

The second punching part 210-1 and the lower mold of the upper mold 1100-1, which are spaced apart by the predetermined distance from the center line in the X-axis direction to the left of the traveling direction of the object 1 and formed to have a predetermined length and a predetermined width. The second notched portions 220-1 of 1200 are combined, and as shown in FIG. 6, the object 1 is spaced a predetermined distance from the center line 1 to the left, so that the second penetration part 20-1 ) Can be formed.

The third punched portion 310-1 of the upper mold 1100-1 and the third notched portion of the lower mold 1200-1 formed with a predetermined length and a predetermined width in the Y-axis direction of the width direction of the object 1 (320-1) is combined, and as shown in FIG. 6, a first penetrating portion 10-1 formed by penetrating through the object 1 and a second penetrating portion 20-1 connecting the ends of the 3 The through part 30-1 may be formed.

As shown in FIG. 6, the object 1 processed by the first punching module 100-1, the second punching module 200-1, and the third punching module 300-1 has a processing unit 40 Can be formed.

In the bending module 500, the processing part 40 is bent to form the bent part 50, and in the shear module 600, the bent part 50 is separated from the object 1, as described above in FIG. Since they have the same features and configurations, detailed descriptions are omitted.

The punching module 100 may be configured in plural so as to form the first processing part 41 and the second processing part 42 on the object 1, and the bending module 500 is applied to the object 1 The first bending module 510-1 formed of the first guide portion 511 and the first pressing portion 521 so that the formed first processing portion 41 can be bent to form the first bent portion 51 ) And the second processing part 42 formed on the object 1 is bent to form a second bent part 52 so that the second guide part 513 and the second pressing part 523 are formed. It may include a bending module (510-2).

FIG. 7 is a perspective view showing in detail a progressive mold according to another embodiment of the present invention, showing that a plurality of processing units 40 are formed to bend each processing unit 40 into a plurality of bending modules And FIG. 8 is a top view showing an object manufactured by the progressive mold of FIG. 7.

As shown in Figure 7, the progressive mold 1000-2 according to another embodiment of the present invention includes a first punching module 100-2, a second punching module 200-2, and a third The punching module 300-2, the first bending module 500-1, the second bending module 500-2, and the shearing module 600-2 are the upper mold 1100-2 and the lower mold 1200-2. ) Is formed with a punching portion and an insertion portion, each forming one module.

As shown in FIG. 7, the first punching module 100-2 includes a first notched portion 120-2 and a first punched portion () so that the first through portion 10 can be formed in the object 1. 110-1).

The first punching part 110-2 is spaced apart by a first distance d1 on both sides from the center line 1 in the processing direction of the object 1 to penetrate the object 1 with a predetermined length, 1-1 punching portion 111 and 1-2 punching portion 112 formed protruding from (1100-2), and the first notching portion 120-2 includes a first punching portion 110- In the shape corresponding to 2), the 1-1 punching part 111 and the 1-2 punching part 112 are inserted into the insertion groove in the lower mold 1200-1 so that the object 1 can be penetrated. It may include a 1-1 notched portion 121 and a 1-2 notched portion 122 to be formed.

Specifically, the 1-1 punching part of the upper mold 1100-2 is spaced apart from the center line in the X-axis direction by a first distance d1 to the right of the traveling direction of the object 1 and formed with a predetermined length and a predetermined width. 111 and the 1-1 notched part 121 of the lower mold 1200-2 are merged, and spaced apart from the center line in the X-axis direction by a first distance d1 to the left of the moving direction of the object 1 And the 1-2 punched portion 112 of the upper mold 1100-2 and the 1-2 notched portion 112 of the lower mold 1200-2 formed to have a predetermined length and a predetermined width are combined, and shown in FIG. As shown, the object 1 is separated from the center line (l) by a first distance (d1) to the right and has a first length (m) and a first width (n) 1-1 through part 11 and A first distance d1 may be spaced apart from the center line 1 to the left to form the 1-2 first through part 12 having a first length m and a first width n.

As shown in FIG. 7, the second punching module 200-2 includes a second notched portion 220-2 and a second punched portion so that the second through portion 20 can be formed in the object 1. 210-2), and the second punching portion 210-2 is a top mold 1100 so that it can penetrate the object 1 with a predetermined length from the center line l in the processing direction of the object 1 -2-1 is formed by protruding from the punching portion 211 and the center line (l) apart from the second distance (d2) to both sides to penetrate the object (1) with a predetermined length, so that the upper mold ( 1100-2) includes a 2-2 punched portion 212 and a 2-3 punched portion 213 protruding from the second notched portion 220-2 is a second punched portion 210-2 ) In a shape corresponding to the 2-1 punching part 211, the 2-2 punching part 212, and the 2-3 punching part 213 are inserted to penetrate the object 1, the lower mold A 2-1 notched portion 221, a 2-2 notched portion 222, and a 2-3rd notched portion 223 formed as insertion grooves in 1200-2 may be included.

Specifically, the 2-1 punching part 211 of the upper mold 1100-2 and the 2-1 notching part of the lower mold 1200-2 formed with a predetermined length and a predetermined width at the center line in the X-axis direction ( 221) are combined to form a 2-1 through part 21 having a first length (m) and a first width (n) at the center line (l) as shown in FIG. 8 can do.

In addition, the 2-2 punching part of the upper mold 1100-2, which is spaced apart from the center line in the X-axis direction by a second distance d2 to the right of the traveling direction of the object 1 and formed with a predetermined length and a predetermined width ( 212) and the 2-2 notched portion 221 of the lower mold 1200-2 are merged, and spaced apart from the center line in the X-axis direction by a second distance d2 to the left in the traveling direction of the object 1 The 2-3rd punching part 213 of the upper mold 1100-2 formed with a predetermined length and a predetermined width and the 2-3rd notching part 223 of the lower mold 1200 are combined together, as shown in FIG. Likewise, the object 1 is separated from the center line (l) by a second distance (d2) to the right and has a second length and a first width (n) of the 2-2 through part 22 and the left side of the center line (l). As a result, it is possible to form the 2-3rd through-hole 23 having a second length and a first width n by being spaced apart from the second distance d2.

The first punched portion 110-2, the second punched portion 210-2, and the third punched portion 310-2 are all formed in parallel, and the first notched portion 120-2 and the second notched portion Both (220-2) and the third notched portion 320-2 may be formed in parallel.

The second length may be the same as the first length m, and may be formed longer than the first length m so that it can be easily cut in the shear module 600-2.

As shown in FIG. 7, the third punching module 300-2 has a third through part 30 connecting the first through part 10 and the second through part 20 to the object 1 It is formed of a third notched portion 320-2 and a third punched portion 310-2 so that it can be formed, and the third punched portion 310-2 includes a first penetrating portion 10 and a second penetrating portion ( 20) is protruded from the upper mold 1100-2 so as to be connected to the object 1 to be elongated in the width direction of the object 1, and the third notched part 320 has a shape corresponding to the third punching part 310 The punching portion 310 may be inserted into an insertion groove in the lower mold 1200-2 so that the object 1 may be penetrated.

Specifically, the third punching portion 310-2 of the upper mold 1100-2 and the lower mold 1200-2 formed with a predetermined length and a predetermined width in the Y-axis direction of the object 1 The 3 notched portions 320-2 are combined, and as shown in FIG. 8, the 1-1 penetrating portion 11, the 1-2 penetrating portion 12, and the second penetrating portion 11 formed through the object 1 A third through part 30 connecting ends of the -1 through part 21, the 2 -2 through part 22, and the 2-3 through part 23 may be formed.

As shown in Fig. 8, the object 1 passing through the first punching module 100-2, the second punching module 200-2, and the third punching module 300-2 is a first processing unit ( 41), the second processing portion 42, the third processing portion 43, the processing portion 40 including the fourth processing portion 44 may be formed.

The first processing part 41 is surrounded by the 2-2 through part 22, the 1-1 through part 11 and the third through part 30, so that three directions are passed through the through parts and one direction is the object. It is formed by being connected to (1), and the second processing part 42 is surrounded by the 1-1 through part 11, the 2-1 through part 21 and the third through part 30 so that the three directions Penetrating through the through parts and formed by being connected to the object 1 in one direction, and the third processing part 43 is a 2-1 through part 21, a 1-2 through part 12 and a third through part Surrounded by (30), three directions are penetrated by the through parts, one direction is connected to the object 1, and the fourth processed part 44 is formed by the 1-2 through part 12, the 2-3 through part It may be formed by being surrounded by the portion 23 and the third penetrating portion 30, and being connected to the object 1 in three directions and one direction thereof being penetrated by the penetrating portions.

Therefore, one direction is connected to the object 1, and each of the three directions penetrates through the first processing part 41, the second processing part 42, the third processing part 43 and the fourth processing of the same shape. A portion 44 may be formed.

As shown in FIG. 7, the first bending module 500-1 is at least partially surrounded by the first through part 10, the second through part 20 and the third through part 30 in the object 1. Is formed of a first guide part 510 and a first pressing part 520 so that the first bent part 41 can be formed by bending, and the second bending module 500-2 is in the object 1 The second guide part 510-2 so that the second bent part 42 can be formed by bending the other part surrounded by the first through part 10, the second through part 20 and the third through part 30. And the second pressing part 520-2.

Specifically, the first guide part 510 includes a first guide part 511 and a first guide part 1 to guide the object 1 so that at least a portion of the object 1 can be bent in a direction perpendicular to the processing direction. 2 Including the guide part 512, the first pressing part 520 is a lower mold so that the object 1 can be bent along the 1-1 guide part 511 and the 1-2 guide part 512 Includes a 1-1 pressing part 521 and a 1-2 pressing part 522 protruding from 1200-2, and the second guide part 510-2 is another part of the object 1 It includes a 2-1 guide part 513 and a 2-2 guide part 514 for guiding the object 1 so that it can be bent in a direction perpendicular to the processing direction, and a second pressing part 520-2 ) Is a 2-1 pressing part protruding from the lower mold 1200-2 so that the object 1 can be bent along the 2-1 guide part 513 and the 2-2 guide part 514 It may include 523 and the 2-2 pressing part 524.

For example, as shown in FIGS. 7 and 8, the object 1 passing through the first punching module 100-2, the second punching module 200-2, and the third punching module 300-2 To be able to bend the first processing portion 41, the second processing portion 42, the third processing portion 43 and the fourth processing portion 44 to be formed, the first of the lower mold 1200-2 The 1 pressing part 521, the 1-2 pressing part 522, the 2-1 pressing part 523 and the 2-2 pressing part 524 are the 1-1 guides of the upper mold 1100-2 The first processing unit 41 and the second processing unit toward the side surfaces of the unit 511, the 1-2 guide unit 512, the 2-1 guide unit 513, and the 2-2 guide unit 514, respectively (42), the third processing portion 43 and the fourth processing portion 44 is pushed and bent, as shown in FIG. 8, the first bent portion 51, the second bent portion 52, the third It is formed of a bent portion 53 and a fourth bent portion 54.

The 1-1 guide part 511, the 1-2 guide part 512, the 2-1 guide part 513, and the 2-1 guide part 514 are formed to be staggered with each other at regular intervals. I can. That is, the first processing unit 41 and the third processing unit 43 are first bent through the first bending module 500-1, and the second processing unit 42 through the second bending module 500-2. ), can be sequentially bent by pushing the fourth processing unit 44.

When the object 1 is bent, the first bent portion 51 and the second bent portion 52 have different concentrations of pressure, so that the curvature of the first curved portion R1 formed on the first guide portion 511 and the second 2 The curvature of the second curved portion R3 formed on the guide portion 513 may be formed differently.

For example, a curved portion P1 having various concave shapes such as 3 mm, 5.5 mm, and 10 mm may be formed on the first guide portion 410 according to the material of the object 1.

9 is a view showing a curvature formed in each guide portion of a progressive mold according to another embodiment of the present invention.

9(a), a 1-1 guide part 511, a 1-2 guide part 512, a 2-1 guide part 513 formed in the upper mold 1100-2, and The 2-2nd guide part 514 may be formed to have a first curvature R1, a second curvature R2, a third curvature R3, and a fourth curvature R4, respectively.

The first processing portion 41, the second processing portion 42, the third processing portion 43, and the fourth processing portion 44 are processed into guide portions having different curvatures, so that the first curvature R1 is different from each other. , The first bent portion 51, the second bent portion 52, the third bent portion 53 and the fourth bent portion having a second curvature R2, a third curvature R3 and a fourth curvature R4 It may be formed as a portion 54.

To accelerate the wear of the progressive mold, a bent portion that can concentrate pressure and friction force on a portion of the mold is formed, and the first curvature (R1), the second curvature (R2), and the third curvature of each bent portion are formed. By making the curvature (R3) and the fourth curvature (R4) different from each other, it is possible to test the frictional force of the bent surface according to various curvatures in a single test, thereby reducing the test time and number of times and saving the specimen material. Have.

Although not shown, a marking module for marking at least one or more of the object 1 may be further included in order to distinguish each bent portion formed on the object 1.

For example, through the marking module, as shown in FIG. 8, it is marked on the portion where the processed portion 40 of the object 1 is formed, so that the bone rate of each processed portion 40 can be checked.

10 is a perspective view showing a guide part of a progressive mold according to another embodiment of the present invention.

As shown in FIG. 10, the curvature unit 1 can concentrate the pressure formed on the guide when the object 1 is bent in the first bending module 500-1 and the second bending module 500-2. ) May be formed to be concave in contact, and the first guide portion 510-1 and the second guide portion 510-2 may be integrally formed.

That is, the first bending module 500-1 and the second bending module 500-2 are formed on the same line, and the punching portions formed on the first guide portion 510-1 and the second guide portion 510-2 And a notched portion may be formed, respectively, and as shown in FIG. 10, it is formed integrally, so that the first processing portion 41, the second processing portion 42, the third processing portion 43 and the third processing portion 43 4 The processing part 44 can be bent.

In addition, the curved portions of the first guide portion 510-1 and the second guide portion 510-2 formed integrally may have a convex surface on which the object 1 contacts.

Although not shown, the progressive mold 1000 may further include a piercing module for forming an alignment portion on the object 1 for aligning the object 1 in a correct position when the object 1 is continuously moved one pitch at a time.

The piercing module may operate together with the first punching module 100, and may form the alignment part on the object 1 first before the first punching module 100.

The piercing module, the first punching module 100, the second punching module 200, the third punching module 300, the first bending module 500-1, the second bending module 500-2, and the shearing module 600 is each processing step consisting of a punching portion and an insertion portion in the upper mold 1100-2 and the lower mold 1200-2. For example, the wear evaluation method of the progressive mold apparatus is a piercing step, It may include a first punching step, a second punching step, a third punching step, a first bending step, a second bending step, a shearing step, and an evaluation step.

The coiled object passes through the uncoiler 3000 and the feeder 2000 and enters the progressive mold 1000-2.

The object (1) entering the progressive mold (1000-2) forms the alignment part on the object (1) in the piercing step, and in the first punching step, the second punching step, and the third punching step Forming the first processing portion 41, the second processing portion 42, the third processing portion 43 and the fourth processing portion 44, and the first bending in the first bending step and the second bending step The part 51, the second bent part 52, the third bent part 53, and the fourth bent part 54 may be formed, and the product S may be separated from the object 1 in the shearing step. .

After repeatedly performing these steps, the detachable guide portion, which is a part of the progressive mold 1000, may be separated to evaluate the wearability of the mold.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: object
10: first through part
20: second penetration portion
30: third through part
40, 41, 42, 43, 44: machining part
50, 51, 52, 53, 54: bend
100, 100-1, 100-2: first punching module
110, 110-1, 110-2: first punching part
120, 120-1, 120-2: first notched part
200, 200-1, 200-2: 2nd punching module
210, 210-1, 210-2: second punching part
220, 220-1, 220-2: 2nd notching part
300, 300-1, 300-2: 3rd punching module
310, 310-1, 310-2: 3rd punching part
320, 320-1, 320-2: 3rd notched part
500-1: 1st bending module
510-1: first guide part
520-1: first pressurization part
500-2: 2nd bending module
510-2: 2nd guide part
520-2: second pressing part
600: shear module
610: 6th punching part
620: 4th notched part
d1: first distance
d2: second distance
l: center line
m: first length
n: first width
P, P1, P2: curved part
S: Product
1000, 1000-1, 1000-2: Progressive mold
2000: feeder
3000: Uncoiler

Claims (10)

A punching module in which a punching portion and a notching portion are formed by penetrating at least a portion of the object in three directions to form a processed portion surrounded by the first penetrating portion, the second penetrating portion, and the third penetrating portion; And
A bending module in which a guide portion and a pressing portion are formed to guide the bent portion so that the bent portion is formed by bending the processing portion;
Including,
The guide part,
A curved portion having a surface in contact with the object having a predetermined curvature so that pressure can be concentrated when the object is bent;
Containing, wear evaluation progressive mold. The method of claim 1,
The curvature part,
A wear evaluation progressive mold in which a surface in contact with the processing unit is formed to be concave so that the processing unit can concentrate the pressure formed on the guide unit when bending in the bending module. The method of claim 1,
The curvature part,
A wear evaluation progressive mold in which a surface in contact with the processing unit is formed to be convex so that the processing unit can concentrate the pressure formed on the guide unit when bending in the bending module. The method of claim 1,
The bending module is separated and combined in the progressive mold, wear evaluation progressive mold. The method of claim 1,
The punching module,
A first punching module formed of a first notched portion and a first punched portion penetrating the object so that the first through portion is formed in one direction of the processing portion;
A second punching module formed of a second notched portion and a second punched portion penetrating the object so that the second penetrating portion is formed in a different direction of the processing portion; And
A third punching module formed of a third notched portion and a third punched portion penetrating the object to form a third through portion connecting the first through portion and the second through portion;
Containing, wear evaluation progressive mold. The method of claim 1,
The bending module,
A guide portion for guiding the processing portion so that the processing portion can be bent in a direction perpendicular to the processing direction of the object; And
A pressing part protruding from the lower mold so as to bend the processing part along the guide part;
Containing, wear evaluation progressive mold. The method of claim 1,
The punching module is configured in plural so as to form a first processing portion and a second processing portion on the object,
The bending module,
A first bending module formed of a first guide portion and a first pressing portion so that the first bent portion is formed by bending the first processing portion formed on the object; And
A second bending module formed of a second guide portion and a second pressing portion to form a second bent portion by bending the second processing portion formed on the object;
Containing, wear evaluation progressive mold. The method of claim 7,
The curvature of the first curved portion formed in the first guide portion and the curvature of the second curved portion formed in the second guide portion are formed differently so that the concentrated pressure of the first bent portion and the second bent portion is different when the object is bent. That is, the wear evaluation progressive mold. The method of claim 1,
A shearing module formed of a fourth notched portion and a fourth punched portion so that the bent portion can be separated from the object;
Further comprising, wear evaluation progressive mold. An uncoiler that unwinds an object wound in a coil shape;
A feeder that supplies the object released by the uncoiler to a predetermined length; And
A progressive mold formed of an upper mold and a lower mold capable of compressing the object supplied from the feeder;
Including,
The progressive mold,
A punching module in which a punching portion and a notching portion are formed by penetrating at least a portion of the object in three directions to form a processed portion surrounded by the first penetrating portion, the second penetrating portion, and the third penetrating portion; And
A bending module in which a guide portion and a pressing portion are formed to guide the bent portion so that the bent portion is formed by bending the processing portion;
Including,
The guide part,
A curved portion having a surface in contact with the object having a predetermined curvature so that pressure can be concentrated when the object is bent;
Containing, wear evaluation progressive mold device.

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