KR200364002Y1 - Progressive mold apparatus - Google Patents

Abstract

The present invention relates to a progressive mold apparatus, and more particularly, the finished product is manufactured in one progressive mold apparatus up to riveting when forming the wiper frame, thereby simplifying the process and reducing the manufacturing cost as well as improving productivity. It relates to a progressive mold apparatus.

The present invention is a progressive mold device for forming a wiper frame (1) by processing a steel plate (5) is provided in the upper and lower molds 101, 105, respectively, and the continuous and stepwise supplied steel sheet (5) A first notching mold (110) for cutting the steel sheet (5) into the unfolded shape of the wiper frame (1); First and second bending molds (120) (140) for stepwise bending both sides of a predetermined range of the wiper frame (1) in the downward direction; As a preparatory step for rotating the entire banded wiper frame 1 at a predetermined angle, cut portions 6 are formed at both ends of the steel plate 5 supporting the wiper frame 1 to form the bending piece 7. Second notching mold 150; A third bending mold (170) for bending the banding piece (7) so as to couple the rivet (4) to the wiper frame (1) to rotate the entire wiper frame (90) by 90 °; A rivet insert mold 180 for inserting the rivet 4 into the rivet hole 3 of the 90 ° rotatable wiper frame 1; Caulking mold 190 for caulking the rivet (4) inserted into the wiper frame (1); Reverse banding mold (200) for returning the 90 ° rotated wiper frame (1) to the initial state; It characterized in that it comprises a cutting mold 230 for cutting the steel plate 5 to be a bundle by a predetermined number of the molded wiper frame (1).

Description

Progressive mold apparatus

The present invention relates to a progressive mold apparatus, and more particularly, the finished product is manufactured in one progressive mold apparatus up to riveting when forming the wiper frame, thereby simplifying the process and reducing the manufacturing cost as well as improving productivity. It relates to a progressive mold apparatus.

In general, the wiper of a vehicle is a wiper blade coupled to a wiper support made of plastic or steel, and rotates at a constant rotation angle on the windshield or surface of the vehicle to wipe off foreign substances such as snow, rain or muddy water on the glass surface. To give the driver a clear view.

Here, the wiper blade is composed of a steel wiper frame and a rubber blade coupled to the wiper frame, the forming method of such a wiper frame, by supplying a steel sheet to a conventional progressive mold apparatus for notching, banding mold, etc. To form the wiper frame.

In addition, the wiper frame formed in the progressive mold apparatus is coupled to the rivet to engage the wiper support, which is coupled by the operator in the rivet coupling device installed separately from the progressive mold apparatus.

However, the conventional progressive mold apparatus could not manufacture the finished product coupled to the wiper frame up to the rivet in one progressive mold apparatus.

That is, the wiper frame is molded in a progressive mold apparatus, and the rivet has been joined by an operator in a separate rivet coupling apparatus.

Therefore, a separate separate process is added, such as a separate rivet coupling device for rivet coupling, which increases manufacturing costs and complicated manufacturing processes.

In addition, there is a problem in that productivity is reduced because a person must directly transfer the wiper frame formed by the progressive mold apparatus to a rivet coupling apparatus.

An object of the present invention for solving the above problems is to simplify the process by manufacturing the finished product in one progressive mold apparatus up to rivet coupling when forming the wiper frame, while reducing the manufacturing cost and improved productivity To provide a device.

1 is a perspective view showing a wiper frame molded in a progressive mold apparatus according to the present invention,

2 is a view showing a process of forming a wiper frame through a progressive mold apparatus according to the present invention,

3 is a cross-sectional view showing a progressive mold apparatus according to the present invention,

4 is a bottom view of the upper mold in the progressive mold apparatus according to the present invention,

5 is a cross-sectional view taken along the line A-A in FIG.

6 is a cross-sectional view showing a state that the upper die is lowered in the progressive mold apparatus according to the present invention is in contact with the stripper plate and the die,

7 is a cross-sectional view taken along line B-B in FIG. 6;

8 is a cross-sectional view showing a state in which the wiper frame is formed by completely lowering the upper mold in the progressive mold apparatus according to the present invention;

9 is a cross-sectional view taken along the line C-C in FIG.

<Description of Signs of Major Parts of Drawings>

1: wiper frame 2: through hole

3: rivet ball 4: rivet

5: steel plate 6: incision

7: banding 8: seam

100: progressive mold apparatus 101: upper mold

102: stripper plate 105: lower mold

106,112,122,132,192,202a, 202b: die

110: first notching mold

111,121,131,151,171,191,231,141: Punch

120: first bending mold 121a, 162a: inclined surface

130: piercing mold 132a: punching ball

140: second bending mold

150: second notching mold

160: first list writing mold 161: pad

162: block

170: third bending mold

180: rivet insert mold 181: rivet supply stand

182: vertical through hole 183: stop block

183a, 184a, 186a: Spring 184: Insertion Punch

185: transfer pipe 186: guide pin

187: sensor

190: caulking mold 200: reverse banding mold

210: second wrist writing mold 220: half cutting mold

230: cutting mold

The present invention for achieving the above object is a progressive mold apparatus for forming a wiper frame by processing a steel sheet that is punched and a die is provided in the upper and lower molds, and continuously and stepwise supplied, the wiper of the steel sheet A first notching mold for drawing out the expanded shape of the frame; First and second bending molds for stepwise bending both sides of a predetermined range of the wiper frame in the pulled state in a downward direction; A second notching mold forming a banding piece by forming cutouts at both ends of the steel plate supporting the wiper frame as a preparation step for rotating the entire banding wiper frame at a predetermined angle; A third bending mold bending the banding piece so as to couple the rivet to the wiper frame to rotate the entire wiper frame by 90 °; A rivet insert mold for inserting a rivet into the rivet hole of the 90 ° rotatable wiper frame; Caulking mold for caulking the rivet inserted in the wiper frame; Reverse banding mold for returning the 90 ° rotated wiper frame to the initial state; It characterized in that it comprises a cutting mold for cutting the steel sheet to be a bundle of a predetermined number of the molded wiper frame.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

Repeated descriptions of the same parts as in the prior art are omitted.

1 is a perspective view showing a wiper frame molded in a progressive mold apparatus according to the present invention, Figure 2 is a view showing a process of forming the wiper frame through the progressive mold apparatus according to the present invention, Figure 3 Figure 4 is a cross-sectional view showing a progressive mold apparatus according to the present invention, Figure 4 is a bottom view of the upper mold in the progressive mold apparatus according to the present invention, Figure 5 is a cross-sectional view taken along line AA in FIG. In the progressive mold apparatus according to the present invention is a cross-sectional view showing a state that the upper mold is lowered and the stripper plate and the die in contact, Figure 7 is a cross-sectional view taken along line BB of Figure 6, Figure 8 is a progressive according to the present invention It is sectional drawing which shows the state in which the wiper frame is shape | molded by the upper mold completely descending in a metal mold | die apparatus, FIG. 9 is a cross section of the CC line in FIG. It is also.

First, the progressive mold apparatus 100 according to the present invention bar and die are installed in the upper and lower molds 101 and 105 in several stages to configure the molds to perform different operations, respectively,

From the side from which the steel sheet 5 is supplied, the first notching mold 110, the first bending mold 120, the piercing mold 130, the second bending mold 140, the second notching mold 150, and the first li Striking mold 160, third bending mold 170, rivet insert mold 180, caulking mold 190, reverse banding mold 200, the second wrist striking mold 210, half cutting mold 220, Cutting mold 230 is configured to be installed sequentially.

Therefore, the steel sheet 5 which is continuously fed step by step at a constant pitch is processed to form the finished product of the wiper frame 1.

Hereinafter, each mold will be described in detail as follows. In addition, the description of the conventional mold structure and operation will be omitted and only the features according to the present invention will be described.

First, the first notching mold 110 is a mold that pulls the steel sheet 5 into the unfolded shape of the wiper frame 1.

That is, the upper and lower molds 101 and 105 are provided with punches 111 and dies 112 having different shapes for each of the predetermined pitches, so that the steel plate 5 passing through the first notching mold 110 passes through the wiper frame ( It is obtained in the form of 1).

On the other hand, in the first notching mold 110, the rivet hole 3 is also drilled so that the rivet 4 can be coupled.

In addition, the wiper frame is molded so as to have a seam without being completely sheared, so that the wiper frame remains attached to the steel sheet 5.

In addition, the first bending mold 120 is a mold for bending approximately 60 ° of both sides of a predetermined range of both sides of the wiper frame 1 in the state of being pulled from the first notching mold 110.

In this case, the bending angle does not necessarily need to be 60 ° and may be bent at various angles within the acute angle.

Accordingly, the upper mold 101 is provided with a punch 121 having an inclined surface 121a of 60 ° on a surface facing each other at a predetermined interval so as to be able to bend both sides of the wiper frame 1 at 60 °, The die 106 of the die 105 is provided with a die 122 so as to support the center when the wiper frame 1 is bent.

The piercing mold 130 is a mold for drilling a plurality of through holes 2 in the wiper frame 1. The through hole (2) may be formed in the first notching mold (110), but if the through hole (2) is first drilled and then banded in the first bending mold (120), the through hole (2) is outside. Since deformation such as spreading in the direction occurs, it is preferable to first band the through-hole 2 after bending about 60 ° in the first bending mold 120.

The piercing mold 130 is provided with a punch 131 for punching the through hole 2 in the upper tank 101, a punching hole (132a) so that the punch 131 is partially inserted into the lower tank 105 A die 132 is inclined at both sides to support the lower side of the bent wiper frame 1.

In addition, the second bending mold 140 has a structure substantially the same as the first bending mold 120, and the opposite surface of the punch 141 provided at a predetermined interval to the upper tank 101 for 90 ° bending is formed. It is a mold for bending the wiper frame 1, which is substantially at right angles and is 60 ° bent at 60 ° in the first bending die 120.

Next, the second notching mold 150 is prepared for rotating the entire wiper frame 1, which is completed by bending, through the first and second bending molds 120 and 140 at a predetermined angle for the rivets 4 to be combined. As a step, it is a mold for forming the bending piece 7 by forming the "6" shaped cutouts 6 at both ends of the steel plate 5 supporting the wiper frame 1.

Therefore, the wiper frame 1 is connected to the bending piece 7.

That is, the upper mold 101 has a “151” shaped punch 151 at both ends of the steel sheet 5, and the lower mold 105 has a die (not shown) corresponding to the punch 151. Is provided.

In addition, the first wrist-lining mold 160 is a metal mold for adjusting the width of the wiper frame 1 bent at 90 ° through the first and second bending molds 120 and 140.

That is, although the wiper frame 1 is bent at 90 ° through the first and second bending molds 120 and 140, the portion bent at 90 ° due to the elastic restoring force due to the characteristics of the steel plate 5 is moved to both sides. A small amount of opening will not result in a complete 90 °, such an inaccurate width dimension being primarily adjusted by the first wrist-writing mold 160.

The first wrist-lining mold 160 has a pad 161 installed on the die 106 of the lower mold 105 so as to be lifted and lowered, and is provided in a symmetrical shape to both sides of the pad 161. The adjustment block 162 is formed on the inclined surface 162a.

Here, the inclined surface 162a is preferably approximately 10 degrees.

Therefore, when the upper mold 101 is lowered, the stripper plate 102 is lowered together while the wiper frame 1 is pushed in between the adjusting block 162 while the wiper frame 1 is bent at exactly 90 ° on both sides. You will adjust the dimensions.

On the other hand, the pad 161 not only supports the wiper frame 1 when adjusting the dimension, but also takes out the wiper frame 1 located between the adjusting blocks 162 when the upper mold 101 is raised.

In addition, the third bending mold 170 is a mold for rotating the entire wiper frame 1 by 90 ° so as to couple the rivet 4 to the wiper frame 1, and the banding to the upper mold 101. A punch 171 is provided at a position corresponding to the piece 7 to bend the bending piece 7.

That is, by bending the bending piece 7 formed in the second notching mold 150 by 90 ° downward, the entire wiper frame 1 connected to the bending piece 7 is rotated by 90 °.

When the wiper frame 1 rotates in this way, the rivet holes 3 formed on both sides of the wiper frame 1 become vertical in a horizontal state, so that the rivet 4 supplied in the vertical direction can be smoothly inserted.

In addition, the rivet insert mold 180 is a mold for inserting the rivet 4 into the rivet hole 3 of the wiper frame 1 rotated by 90 °, and is coupled to the stripper plate 102 of the upper mold 101 and is centered. A vertical through hole 182 is formed therein, and a rivet supply table having a pair of stop blocks 183 installed in both sides of the vertical through hole 182 so as to be horizontally movable through a spring 183a ( 181, a conveying pipe 185 for transferring the rivets 4 one by one to the vertical through hole 182, and a vertical through hole 182 installed on the upper mold 101 via a spring 184a. Sliding along the upper die 101 when the rivet 4 is made of an insertion punch 184 for inserting into the rivet hole 3 of the wiper frame (1).

Here, the conveying pipe 185 is connected to the known air supply device to transfer the rivets 4 to the vertical through hole 182 one by one by the force of the air supplied.

In addition, the lower mold 105 is installed so as to be able to move up and down via a spring 186a, and the front end portion thereof protrudes a predetermined length above the die 106, so that the rivet 4 is riveted to the wiper frame 1 ( Guide pins 186 are installed to guide them to be correctly inserted into 3).

Therefore, when the rivet 4 is transferred into the vertical through-hole 182 of the rivet supply table 181 through the transfer pipe 185, the transferred rivet 4 is inserted / seated in the stop block 183. do. Then, when the upper mold 101 is lowered, the rivet supply stand 181 and the wiper frame 1 are lowered, and the protruding guide pin 186 is inserted into the rivet hole 3 of the wiper frame 1. In this case, the insertion punch 184 pushes the rivet 4 by the upper mold 101 which continues to descend, where the rivet 4 descends while opening the stop block 183 in an outward direction. It is inserted into (3).

The rivet 4 inserted into the rivet hole 3 is guided to the guide pin 186 as its tip portion is lowered while pressing the guide pin 186 in contact with the guide pin 186 and the rivet hole 3 is inserted into the rivet hole 3. It can be inserted exactly in.

In addition, when the insertion of the rivet 4 is completed, the guide pin 186 slightly opens the lower end of the rivet 4, so that the rivet 4 is in a coupled state.

In this case, the reason why the lower end of the rivet 4 is slightly opened and coupled is to prevent the rivet 4 from being removed from the rivet hole 3 by the elastic guide pin 186 when the upper mold 101 is raised. to be.

In addition, the sensor 187 detects whether the rivet insert mold 180 is spaced one pitch from the vertical through hole 182 and is normally inserted into the rivet hole 3 of the wiper frame 1. Is further provided.

The sensor 187 contacts the head of the rivet 4 to determine whether the rivet 4 is inserted. When the rivet 4 is not inserted, the sensor 187 stops the operation of the progressive mold apparatus 100. In this case, the operator may insert the rivet 4 directly into the empty rivet hole (3).

In addition, the caulking die 190 is a punch (191) and die 192 of the upper and lower molds 101 and 105 of the rivet 4 in the state inserted into the rivet hole (3) of the wiper frame (1) It is a mold pressurized by caulking).

In addition, the reverse banding mold 200 is a mold for returning the wiper frame 1 rotated by 90 ° to the initial state for the rivet 4 joining operation.

The reverse banding mold 200 restores the wiper frame 1 to the initial state by unfolding the bending piece 7, and at this time, it does not extend 90 ° at a time, but 45 ° and 90 ° over 1 and 2 times. It will be spread out to be.

To this end, the lower mold 105 is provided with a die 202a having an upper side inclined at 45 ° with a predetermined interval at a position corresponding to the bending piece 7, and a die 202b having a horizontal surface.

In addition, the second wrist climbing mold 210 is a mold for re-adjusting the width dimension of the wiper frame 1 which has completed all the processes, and the structure is the same as that of the first wrist riding mold 160.

Lastly, the cutting mold 230 is a mold for cutting the steel sheet 5 so as to bundle the molded wiper frame 1 by a predetermined number, and the punch 231 is disposed at both ends of the steel sheet 5. Thus, the steel sheet 5 is sheared.

In this way, by making a bundle by a certain number it can be more quickly and easily when painting the wiper frame (1).

On the other hand, the cutting mold 230 is further provided with a half cutting mold 220 for pressing a portion of the joint 8 connecting the steel plate 5 and the wiper frame 1 to a predetermined depth.

The half cutting mold 220 allows an operator to easily separate the wiper frame 1 from the steel plate 5 when the painting operation of the wiper frame 1 is finished.

As described above, when the progressive mold apparatus 100 according to the present invention is supplied between the upper and lower molds 101 and 105, the steel sheet 5 continuously and stepwise,

First, the first notching mold 110 is divided into the unfolded shape of the wiper frame 1, the wiper frame 1 in this state is thus bent at both sides 60 ° in the first bending mold 120, after In the piercing mold 130, a plurality of through holes 2 are drilled in the longitudinal direction.

Subsequently, the wiper frame 1 in which the through hole 2 is drilled is bent at both sides by 90 ° in the second bending mold 140, and then the wiper frame 1 is positioned in the second notching mold 150. Banding pieces 7 are formed at both ends of the steel plate 5.

As such, the wiper frame 1 which has been molded to the second notching mold 150 has a width dimension adjusted by the first wrist-writing mold 160, and the wiper frame 1 whose width dimension has been adjusted is a third bending mold 170. The whole is rotated at 90 °, and after the rivet is inserted, the rivet 4 is inserted into the rivet hole 3 of the wiper frame 1 in the rivet insert mold 180.

After the rivet 4 is inserted into the rivet hole 3 of the wiper frame 1, the rivet 4 is caulked in the caulking die 190, and after caulking, the wiper in the reverse banding die 200 is caulked. The entire frame 1 is rotated in the reverse direction to return to the initial state.

Subsequently, the width dimension of the wiper frame 1 is adjusted again in the second wrist-liquid mold 210, and the joint 8 of the steel plate 5 and the wiper frame 1 is removed from the half cutting mold 220. After pressing, the finished product is completed by cutting the steel sheet 5 so as to bundle the predetermined number of the wiper frame 1 completed by the cutting mold 230.

Therefore, instead of manufacturing the wiper frame through two separate apparatuses and processes as in the prior art, by manufacturing the wiper frame 1 in a continuous process in one progressive mold apparatus 100, the manufacturing process is shortened and simplified Manufacturing costs can be reduced and productivity will be improved.

According to the present invention, the finished product is manufactured in one progressive mold apparatus up to rivet coupling when forming the wiper frame, thereby simplifying the process and reducing the manufacturing cost, and also secure a work space and improve productivity .

Claims (9)

In the progressive mold apparatus for forming the wiper frame (1) by processing the steel plate (5) is provided in the upper and lower molds 101, 105, respectively, punched and die supplied continuously and stepwise, A first notching mold 110 for pulling the steel sheet 5 into the unfolded shape of the wiper frame 1; First and second bending molds (120) (140) for stepwise bending both sides of a predetermined range of the wiper frame (1) in the downward direction; As a preparatory step for rotating the entire banded wiper frame 1 at a predetermined angle, cut portions 6 are formed at both ends of the steel plate 5 supporting the wiper frame 1 to form the bending piece 7. Second notching mold 150; A third bending mold (170) for bending the banding piece (7) so as to couple the rivet (4) to the wiper frame (1) to rotate the entire wiper frame (90) by 90 °; A rivet insert mold 180 for inserting the rivet 4 into the rivet hole 3 of the 90 ° rotatable wiper frame 1; Caulking mold 190 for caulking the rivet (4) inserted into the wiper frame (1); Reverse banding mold (200) for returning the 90 ° rotated wiper frame (1) to the initial state; Cutting mold 230 for cutting the steel sheet (5) so that a bundle of a predetermined number of the molded wiper frame (1) Progressive mold apparatus comprising a. The method of claim 1, The rivet insert mold 180 is coupled to the stripper plate 102 of the upper mold 101, and a vertical through hole 182 is formed at the center thereof, and springs 183a are formed at both sides of the vertical through hole 182, respectively. And a rivet supply stand 181 provided with a pair of stop blocks 183 installed to be horizontally movable through the vehicle, A transfer pipe 185 for transferring the rivet 4 one by one to the vertical through hole 182, The rivet hole (3) of the wiper frame (1) when the rivet (4) is lowered when the upper mold (101) is lowered while the upper mold (101) is installed via a spring (184a) as a medium and slides along the vertical through hole (182). Progressive mold device, characterized in that consisting of an insertion punch 184 to be inserted into. The method of claim 2, The lower mold 105 is installed so as to be lifted and lowered via a spring 186a, and its tip portion protrudes a predetermined length above the die 106, so that the rivet 4 is riveted to the wiper frame 1 (3). Progressive mold device, characterized in that the guide pin 186 is installed to guide so that it can be inserted accurately. The method of claim 2 or 3, The rivet insert mold 180 further includes a sensor 187 that detects whether the rivet 4 is normally inserted into the rivet hole 3 of the wiper frame 1 by being spaced one pitch from the vertical through hole 182. Progressive mold apparatus, characterized in that provided. The method of claim 2, Progressive mold apparatus, characterized in that the piercing mold (130) for drilling the through hole (2) in the wiper frame (1) is further installed between the first and second bending mold (120) (140). The method of claim 5, wherein The first wrist-listing between the second notching mold 150 and the third bending mold 170 to adjust the width of the wiper frame 1 bent through the first and second bending molds 120 and 140. Progressive mold apparatus, characterized in that the mold 160 is further installed. The method of claim 6, Progressive mold apparatus, characterized in that between the reverse banding mold (200) and the cutting mold (230) is further provided with a second wrist-rising mold 210 for adjusting the width of the wiper frame (1). The method according to claim 6 or 7, The first and second wrist-listing molds 160 and 210 are symmetrical to each other on both sides of the pads 161 and pads 161, which are installed on the die 106 of the lower mold 105, respectively. Progressive mold apparatus, characterized in that it comprises an adjustment block 162, the inclined surface (162a) is formed on the side facing each other. The method according to claim 6 or 7, Before the cutting mold 230, a half cutting mold 220 for pressing the joint 8 of the wiper frame 1 is further installed so that the wiper frame 1 can be easily separated from the steel plate 5. Progressive mold device.