KR200447416Y1

KR200447416Y1 - Counter sinking device

Info

Publication number: KR200447416Y1
Application number: KR2020090001897U
Authority: KR
Inventors: 양재렬
Original assignee: 삼흥정공 주식회사
Priority date: 2009-02-20
Filing date: 2009-02-20
Publication date: 2010-01-25

Abstract

The present invention relates to a countersinking apparatus for simultaneously countersinking both upper and lower end edges for a plurality of piercing holes formed in a molded article.

To this end, the present invention is to form a lower body and the inner mold is configured to interlock with each other while the lower mold is rotatably installed a plurality of lower counter sinks for countersinking the bottom edge of each piercing hole formed in the molded product, respectively; A plurality of guide posts protruding upward from both side portions of the lower mold; A plurality of upper and lower portions of the piercing holes formed in the molded product, which are installed in the upper portion of the lower mold while being supported by the guide posts and being supported by the respective guide posts, are configured to interlock with each other. An upper mold at which upper counter sinks are rotatably installed; A pressurizing drive unit which is driven to move the upper mold up and down; An upper driver for rotating any one of the upper counter sinks; A counter sinking device is provided, comprising: a lower driving unit for rotating any one of the lower counter sinks.

Counter Sinking Device, Multiple Piercing Holes, Simultaneous Forming

Description

Counter sinking device

The present invention relates to a countersinking device for simultaneously countersinking both upper and lower ends of each of the piercing holes in a molded article having a plurality of piercing holes.

In general, the counter-sinking operation refers to a work of shaving a corner portion of the piercing hole into a plate shape to bury the head of the countersunk screw, and the counter-sinking device is a device for performing the counter-sinking operation described above. .

A typical counter sinking device performs counter sinking on one side of a piercing hole formed in a molded article, and then sequentially performs counter sinking on one side of the other piercing hole, and thus each piercing hole of the molded article. When all the countersinks on one side are completed, repeat the above process with the molded part turned over again to perform countersinks on the other side for each piercing hole so that all the piercing holes are countersinking. have.

However, the countersinking operation using the above-described conventional countersinking apparatus has a problem of deterioration of workability due to a long working time.

That is, in the case of a product having a plurality of piercing holes, the counter-sinking operation is performed sequentially on each of the above-mentioned piercing holes, and the counter-sinking operation on the opposite side is sequentially performed, so that the more the number of the piercing holes is The task of countersinking was much longer.

In particular, the above-described conventional countersinking device has been difficult to install so that the position of the top and bottom of the piercing hole is exactly matched in the process of flipping for countersinking of the other side after the countersinking of the molded product on one side is completed. Because of this, there was a problem that the counter-sinking work position on the upper and lower surfaces of the piercing hole was not exactly matched, and thus, there was a problem in that assembly failure of the apparatus to which the molded product was applied could occur.

The present invention has been made to solve the various problems according to the prior art described above, an object of the present invention is to provide a new form of counter-sinking operation for a molded article having a plurality of piercing holes can be made by a single process It is to provide a counter sinking device.

According to the countersinking apparatus of the present invention for achieving the above object, a plurality of lower countersinks for countersinking the bottom edge of each piercing hole formed in the molded product while being configured to interlock with each other at the inner part Lower molds rotatably installed respectively; A plurality of guide posts protruding upward from both side portions of the lower mold; A plurality of upper and lower portions of the piercing holes formed in the molded product, which are installed in the upper portion of the lower mold while being supported by the guide posts and being supported by the respective guide posts, are configured to interlock with each other. An upper mold at which upper counter sinks are rotatably installed; A pressurizing drive unit driven to move the upper mold up and down; An upper driver for rotating any one of the upper counter sinks; And a lower driving unit for rotating any one of the lower counter sinks.

Here, the upper drive unit is installed around the upper mold, the upper drive motor is driven by supplied power, and the chain connecting any one of the upper counter sink and the upper drive motor of each of the upper counter sinks, or It comprises a connecting member consisting of a belt, the lower drive unit is installed around the lower mold, the lower drive motor is driven by receiving power, any one of the lower counter sink and the lower counter sink and the lower drive It characterized in that it comprises a connecting member consisting of a chain or a belt for connecting the motor.

In addition, a contact plate which is in contact with the upper surface of the molded product which is placed on the upper surface of the lower mold while being moved up and down elastically from the bottom surface of the upper mold and the upper counter sink penetrates the lower portion of the upper mold The push pin may further be installed at the upper portion of the lower mold to further elastically move up and down on the lower mold to support a bottom surface of the molded product placed on the upper surface of the lower mold.

In addition, a pair of pellet pins are further provided on both sides of the upper surface of the lower mold to penetrate both sides of the molded product so as to determine a seating position of the molded product. A plurality of guide pins penetrating the inner portion of the molded product to guide the position according to the movement is characterized in that it is further installed.

Counter-sinking device of the present invention as described above has the effect that the counter-sinking for the molded article formed with a plurality of piercing holes can all proceed at the same time to minimize the work time.

In particular, since counter-sinking of the upper and lower surfaces of the molded product proceeds at the same time, the work time can be further shortened and the work can be conveniently performed since the work such as the inversion of the molded product is not performed.

In addition, the countersinking apparatus of the present invention has the effect that the upper and lower countersinking working positions with respect to each piercing hole of the molded product can be exactly matched.

Hereinafter, a preferred embodiment of the countersinking apparatus of the present invention will be described with reference to FIGS. 1 to 10.

As shown in FIG. 1, the countersinking apparatus according to the embodiment of the present invention has a lower mold 100, a plurality of guide posts 200, an upper mold 300, a pressure driving unit, and an upper driving unit 500. And a lower driver 600.

This will be described in more detail for each component as follows.

First, the lower mold 100 is configured to form a lower body of the counter sinking device according to an embodiment of the present invention, and comprises a plurality of lower counter sinks 110, 120, and 130.

Here, each of the lower countersinks 110, 120, and 130 is a tool for countersinking the bottom edges of the piercing holes 11 (see FIG. 2 attached) formed in the molded product 10, and the inner side of the lower mold 100. In addition to being installed in a direction perpendicular to the site is rotatably installed, the number is provided equal to the number of the respective piercing holes (11).

In the embodiment of the present invention, for example, three piercing holes 11 of the molded product 10 and three lower countersinks 110, 120, and 130 are also provided.

In particular, an embodiment of the present invention suggests that the lower countersinks 110, 120, and 130 are configured to rotate while interlocking with each other.

That is, when one lower counter sink is rotated, the other two lower counter sinks are also configured to rotate at the same time.

This may be achieved by installing belt pulleys (or sprockets) 111, 121, 122, and 131 on the three lower countersinks 110, 120, and 130, respectively, and connecting two lower countersinks adjacent to each other by belts (or chains) 123 and 124.

In this case, as shown in FIG. 3, two belt pulleys 121 and 122 are provided in any one of the lower counter sinks (hereinafter, referred to as “second lower counter sinks”) 120 that are positioned relatively among the three lower counter sinks 110, 120, and 130. Is installed, and one of the two belt pulleys 121 and 122 is one of the lower counter sinks (hereinafter, referred to as “first lower counter sink”) of any two adjacent lower counter sinks 110 and 130 ( In addition to the belt pulley 111 of 110 and the belt 123, the other belt pulley 122 is the belt pulley 131 of the other lower counter sink (hereinafter referred to as "third lower counter sink") And belt 124.

Next, the plurality of guide posts 200 are a series of axes for guiding the lifting and lowering of the upper mold 300 to be described later.

Each of the guide posts 200 is installed at four corners of the lower mold 100 so as to protrude upward in a fixed state. This is as shown in Figures 1 and 2 attached.

Of course, the guide posts 200 may not be configured as four, but may be provided as two, three, or four or more according to needs (for example, the size of the upper mold).

Next, the upper mold 300 is configured to form an upper body of the counter-sinking device according to an embodiment of the present invention, both ends of the upper mold 100 while receiving the support of the guide posts 200 It is installed to be able to lift on and off.

In addition, the upper mold 300 includes a plurality of upper counter sinks 310, 320, and 330.

Here, each of the upper countersinks 310, 320, 330 is a tool for countersinking the top edges of the piercing holes 11 formed in the molded product 10, and is directed toward a direction perpendicular to the inner portion of the upper mold 300. In addition to being installed and rotatably installed, the number is provided in the same number (three in the embodiment of the present invention) as the number of the respective piercing holes (11).

In particular, the embodiment of the present invention suggests that the upper countersinks 310, 320, 330 are configured to rotate while interlocking with each other.

That is, when one upper counter sink is rotated, the other two upper counter sinks are also configured to rotate at the same time.

This is achieved by installing belt pulleys (or sprockets) 311, 321, 322, and 331 in the three upper counter sinks 310, 320, 330, respectively, and connecting two upper counter sinks with belts (or chains) 323, 324 adjacent to each other.

In this case, as shown in FIG. 4, two belt pulleys 321 and 322 are attached to any one of the upper counter sinks (hereinafter, referred to as “second upper counter sinks”) 320 that are positioned relatively among the three upper counter sinks 310, 320, and 330. Is installed, and one of the two belt pulleys 321 and 322 is one of the two upper counter sinks 310 and 330 adjacent to the upper counter sink (hereinafter referred to as “first upper counter sink”) ( The belt pulley 311 of the 310 and the belt 323 connected to the other belt pulley 322 is another belt pulley of the other upper counter sink (hereinafter referred to as "third upper counter sink") 330 331 and belt 324 are connected.

Next, the pressurization driver (not shown) is a series of configurations driven to move the upper mold 300 in a lifting and lowering manner.

In this case, the pressure driving unit is installed in a state located directly above the upper mold 300, the cylinder rod 410 of the pressure driving unit is configured to be fixed to the upper surface of the upper mold 300.

Next, the upper drive unit 500 is a series of components for rotating any one of the upper counter sink (310, 320, 330).

In the embodiment of the present invention, the upper drive unit 500 is installed around the upper mold 300, the upper drive motor 510 is driven by receiving power and any one of the upper counter sinks (310, 320, 330) It is proposed to include a connection member (preferably a timing belt) 520 composed of a chain or a belt connecting the upper counter sink and the upper driving motor 510.

In this case, the upper drive motor 510 is preferably composed of a reduction motor, the connection member 520 is preferably composed of a timing belt.

In addition, the upper counter sink to which the connecting member 520 is connected is either the first upper counter sink 310 or the third upper counter sink 330, and in the embodiment of the present invention, the connecting member 520. Is connected to the first upper counter sink 310 as an example. At this time, the first upper counter sink 310 is further provided with a separate belt pulley 312 for the connection with the connection member 520.

Next, the lower driving unit 600 is a series of components for rotating any one of the lower counter sinks (110, 120, 130).

In the embodiment of the present invention, the lower drive unit 600 is installed around the lower mold 100 while being supplied with power and driven by a lower drive motor 610 and any one of the lower counter sinks 110, 120, and 130. It is proposed to include a connection member 620 consisting of a chain or a belt for connecting between the lower counter sink and the lower drive motor 610.

In this case, the lower drive motor 610 is preferably composed of a reduction motor, the connection member 620 is preferably composed of a timing belt.

In addition, the counter sink to which the connection member 620 is connected is either the first lower counter sink 110 or the third lower counter sink 130. In the embodiment of the present invention, the connection member 620 is For example, it is connected to the first lower counter sink 110. At this time, the first lower counter sink 110 is further provided with a separate belt pulley 112 for connection with the connection member 620.

On the other hand, the counter-sinking device according to the embodiment of the present invention can avoid the interference due to the burr (burr) of the molded product 10 in which a plurality of piercing holes 11 is formed and can maintain the horizontal level of the molded product 10 It further suggests that a series of structures are included to make it more suitable.

That is, in the exemplary embodiment of the present invention, the contact plate 340 is installed at the lower end of the upper mold 300 in contact with the upper surface of the molded product 10, and the upper part of the lower mold 100 is formed of the molded product ( The push pin 140 supporting the bottom of the 10 is configured to be further included.

Here, the contact plate 340 is installed to be movable up and down while being supported by the guide posts 200 together with the upper mold 300, while being moved up and down elastically from the bottom of the upper mold 300. It is configured to be in contact with the upper surface of the molded product 10 mounted on the upper surface of the lower mold (100).

At this time, the inner portion of the upper mold 300 is provided with an elastic portion 350 for installing the contact plate 340 to move up and down elastically, the elastic portion 350 is the lower end of the upper mold ( A fixing member 351 penetrating the bottom surface of the contact plate 340 and fixed to an upper surface of the contact plate 340, a spring interposed between an upper end of the fixing member 351 and an inner space of the upper mold 300. The elastic member 352 is configured to include.

That is, the contact plate 340 is configured to press the molded product 10 at the pressure of the elastic member 352 in the state that the upper mold 300 is moved completely downward, the upper mold 300 is again As it rises, it rises by the restoring force of the elastic member 352 and serves to support the molded product 10 so that it can be raised while maintaining a horizontal state.

In addition, the push pin 140 is elastically movable up and down on the lower mold 100 to support the bottom surface of the molded product 10 mounted on the upper surface of the lower mold 100.

In this case, it is preferable that the push pin 140 is provided in plurality so as to support both sides of the bottom surface of the molded product 10 evenly.

In addition, the embodiment of the present invention proposes that the pie pin 150 is further installed on the upper surface of the lower mold 100, the guide pin 160 is further installed on the inner surface of the upper mold 100. .

Here, the pellet pin 150 is a series of configurations that determine the seating position of the molded product 10, the guide pin 160 is the angle of the corresponding product 10 in the downward movement of the molded product 10 It is a series of configurations in which the piercing holes 11 guide precisely to the working position for count sinking.

At this time, the pellet pin 150 is provided in two to determine the mounting position with respect to both ends of the molded product 10, the guide pin 160 is located at the three outer peripheral positions of the molded product 10 It is preferable that one each is provided in each of the two outer edge portions and the central outer portion.

In the following, the process of counter-sinking by the counter-sinking device according to the embodiment of the present invention described above will be described in more detail.

First, as shown in FIG. 1, the molded product 10 to be countersinked is placed on the upper surface of the lower mold 100.

In this case, the molded product 10 should be seated so that the position of each piercing hole 11 and the position between each of the lower countersinks 110, 120, and 130 of the lower mold 100 may coincide with each other, which is the molded product 10. Each of the pinholes 12 formed in the ()) is matched with the pellet pin 150 and the guide pin 160 provided in the lower mold (100).

Particularly, although the molded product 10 is placed on the upper surface of the lower mold 100, the bottom surface of the molded product 10 and the upper surface of the lower mold 100 are formed by the push pins 140 installed on the lower mold 100. These do not contact with each other to maintain a state spaced apart.

As described above, when the mounting of the molded product 10 is completed on the lower mold 100, the pressure driving unit is controlled to move the upper mold 300 downward.

In this case, the upper mold 300 is moved up and down while being guided by each guide post 200 penetrating the four corners, and can be moved downward while always maintaining a horizontal state.

In addition, when the upper mold 300 is moved downward as described above, the contact plate 340 installed at the bottom of the upper mold 300 is also moved downward, and the contact plate 340 is downward of the upper mold 300. While the movement is in progress, the upper surface of the molded product 10 is preferentially contacted. This is the same as in FIGS. 5 and 6.

In this case, the contact plate 340 is pressed while maintaining the molded product 10 in a horizontal state because each part is elastically installed by the elastic portion 350.

When the pressurization of the molded product 10 is made, the push pin 140 is moved downward while being pressed, and the molded product 10 is also moved downward. This is the same as in FIGS. 7 and 8.

At this time, since the molded product 10 is guided by the pellet pin 150 and the guide pin 160, not only the accurate horizontal state can be maintained, but also the piercing holes 11 and the respective lower countersinks 110, 120, and 130. And the upper countersinks 310, 320, 330 can be matched on a straight line that is exactly vertical.

In particular, while the above-described series of processes (processes in which the molded product is moved downward) are performed, operation of the upper driving unit 500 and the lower driving unit 600 is performed while driving the driving units 500 and 600.

That is, the first upper counter sink 310 is rotated by the driving of the upper driver 500, and the first lower counter sink 110 is rotated by the driving of the lower driver 600. .

At this time, the second upper counter sink 320 is rotated by the rotation of the first upper counter sink 310, and the third upper counter sink 330 is rotated by the rotation of the second upper counter sink 320. Is rotated.

In addition, the second lower countersink 120 is rotated by the rotation of the first lower countersink 110, and the third lower countersink 130 is rotated by the second lower countersink 120. Is rotated.

Therefore, when the downward movement of the upper mold 300 by the operation of the pressure drive is made, each piercing hole 11 of the molded product 10 that is provided with the pressing force of the contact plate 340 is the respective upper counter sink Counter sinking is performed by (310, 320, 330) and each of the lower counter sinks (110, 120, 130).

In particular, in this case, although the downward movement of the upper mold 300 is completely performed, a problem may occur in which the molded product 10 may be compressed and damaged between the upper mold 300 and the lower mold 100. However, due to the structure in which the contact plate 340 is elastically installed or the structure in which the push pin 140 is installed according to the embodiment of the present invention, the excessive pressure on the molded product 10 is not achieved, and each Smooth counter sinking to the piercing hole 11 can be achieved. This is the same as in FIGS. 9 and 10.

Subsequently, when the upper mold 300 is moved upward through the reverse process, the molded product 10 is spaced apart from the upper surface of the lower mold 100 by the restoring force of the push pin 140, thereby being smooth by the operator. When the take-out is possible, the worker may take out the molded product 10 in which the counter sinking is completed, and then place a new molded product on the upper surface of the lower mold 100, and then repeat the above-described series of processes.

1 is a front view showing for explaining the initial state of the countersinking apparatus according to a preferred embodiment of the present invention

2 is a plan view of a countersinking apparatus according to a preferred embodiment of the present invention

3 is an enlarged view of a portion “A” of FIG. 1.

4 is an enlarged view of a portion “B” of FIG. 1.

5 is a front view illustrating a state in which a contact plate is in contact with a molded product among operating states of a countersinking device according to a preferred embodiment of the present invention;

6 is an enlarged view of a portion “C” of FIG. 5.

7 is a front view illustrating a state in which the molded product is in contact with the lower mold by the downward movement of the contact plate during the operating state of the countersinking device according to a preferred embodiment of the present invention

8 is an enlarged view of a portion “D” of FIG. 7.

9 is a front view illustrating a state in which the counter die is performed by completely moving the upper mold downward in an operating state of the countersinking apparatus according to an embodiment of the present invention;

10 is an enlarged view of a portion “E” of FIG. 9.

Explanation of symbols for main parts of the drawings

10. Molded product 11. Piercing hole

12.Pinhole 100.Lower Mold

110,120,130. Lower countersink 123,124,323,324. belt

111,112,121,122,131,311,312,321,322,331. Belt pulley

140.Pushpin 150.Pilet Pin

160. Guide pin 200. Guide post

300. Upper mold 310,320,330. Upper countersink

340. Contact plate 350. Elastic part

351. Retaining member 352. Resilient member

410. Cylinder rod 500. Upper drive

510. Upper drive motor 520. Connecting member

600. Lower drive unit 610. Lower drive motor

620. Connecting members

Claims

A lower mold having a lower body and a plurality of lower countersinks configured to interlock with each other at an inner side thereof and countersinking the bottom edges of the piercing holes formed in the molded product, respectively;

A plurality of guide posts protruding upward from both side portions of the lower mold;

A plurality of upper and lower portions of the piercing holes formed in the molded product, which are installed in the upper portion of the lower mold while being supported by the guide posts and being supported by the respective guide posts, are configured to interlock with each other. An upper mold at which upper counter sinks are rotatably installed;

A pressurizing drive unit driven to move the upper mold up and down;

An upper driver for rotating any one of the upper counter sinks;

A lower driver for rotating any one of the lower countersinks;

A contact plate which is installed on the bottom of the upper mold so as to be movable up and down and is in contact with an upper surface of the molded product while each upper counter sink is penetrated; And,

Counter-sinking device, characterized in that it comprises a push pin that is elastically movable up and down on the upper portion of the lower mold, and supporting the bottom of the molded product mounted on the upper surface of the lower mold.

The method of claim 1,

The upper drive unit

An upper drive motor installed around the upper mold and driven with power, and a chain or belt connecting the upper counter sink and the upper drive motor of each of the upper counter sinks to each other; Is configured to include,

The lower drive unit

A lower driving motor installed around the lower mold and driven with power, and a chain or belt connecting member connecting any one of the lower counter sinks and the lower driving motor to each other; Counter sinking device, characterized in that configured.

delete

The method according to claim 1 or 2,

On both sides of the upper surface of the lower mold is further provided a pair of pellet pins penetrating both sides of the molded product to determine the seating position of the molded product,

Counter sinking device, characterized in that a plurality of guide pins further penetrate the inner portion of the molded product to guide the position in accordance with the downward movement of the molded product on the inner surface of the lower mold.