KR100919795B1 - Connection reed process of manufacture - Google Patents

Abstract

The present invention relates to a duct connector manufacturing mold, in the mold for manufacturing the duct connector for discharging smoke,

A lower mold 10 having an upwardly projecting portion 11 in the center;

Chucking means (30) is located on the top of the lower mold 10 and chucking the processing disc (70);

An upper mold 20 opposed to an upper portion of the lower mold 10 so as to be movable up and down and having a bending hole 21 into which the protrusion 11 enters;

A punch 40 provided to be able to move up and down at the inner center of the upper mold 20 to punch the center of the processing disc 70;

An upper mold lifting cylinder 50 connected to a plurality of upper circumferences of the upper mold 20 to raise and lower the upper mold 20;

The punch raising and lowering cylinder 60 connected to the upper portion of the punch 40 to raise and lower the punch 40.

Including;

The punching position hole 23 is formed in the center upper part of the bending hole 21 so that the said punch 40 may be inserted, and the 1st bending surface 22 which becomes large gradually in diameter around the lower part of the said bending hole 21 is formed. ) Is formed,

The protrusion 11 has a perforation hole 13 through which the punch 40 enters, and a second bending surface 12 having a diameter gradually increasing is formed at one edge of the outer circumference of the protrusion 11. Formed,

The first bending surface 22 is formed concave, the second bending surface 12 is formed convex to correspond to the first bending surface 22,

While the upper mold 20 and the punch 40 are sequentially lowered in succession, the upper mold 20 presses the processing disc 70 to surround the protrusion 11, of the processing disc 70 While at least a portion of the first bending surface 22 presses at least a portion of the processing disk 70 while at least a portion of the second bending surface 12 forms a flange portion 71 on the processing disk 70. As the punch 40 is lowered, the punch 40 is pressurized to form the hole 73 in the processed disc 70.

Description

Connection reed process of manufacture

The present invention relates to a duct connector manufacturing mold, to a duct connector manufacturing mold that can quickly produce a duct connector, and to a duct connector manufacturing method using the same.

The fume discharge hood recently installed in a restaurant is provided with a suction tube, a fixed tube, a movable tube, and a connecting tube, which are installed on the grill to suck smoke generated when the meat is grilled.

Here, the connecting tube is connected to the duct installed on the ceiling and built in a motor on one side, the fixed tube and the movable tube, is installed between the connecting tube and the suction tube so that the height of the suction tube can be adjusted based on the connecting tube.

That is, the fixed tube is fixed to the connecting tube, the movable tube is contracted and stretched up and down, the upper end is connected to the fixed tube so that the height of the suction tube is adjusted and the suction tube is connected to the lower end.

Here, the movable tube is operated by the operation of the movable switch electrically connected to the motor built in one side of the connecting tube.

And the flange portion is formed around the upper end of the connecting tube.

When the hood for smoke discharge is connected to the duct installed in the ceiling, when the duct is in the shape of a rectangular parallelepiped can be connected to the hood by fixing the flange portion of the connecting cylinder on the bottom.

However, when the duct is cylindrical in shape, the hood tube, that is, the connecting tube cannot be directly connected to the outer circumferential surface of the duct, and in order to connect the hood tube, a connecting tube protruding downward on the duct must be formed. The connection was fixed to fix the hood tube.

Therefore, in order to connect the connecting tube to the cylindrical duct, it is necessary to connect the connector for the duct, the duct connector is inserted into the connecting tube is fastened and the upper portion is formed in the flange portion in close contact with the outer peripheral surface of the cylindrical.

In the manufacture of such a duct connector, conventionally, the rectangular plate shape of the metal material is cut in a circular shape, and then the cut working disc is banded to form a protrusion and a flange part using a bending mold, wherein the flange part is formed in a circular shape.

In this way, the bent processing disk is transferred to a separate cutter to cut the flange portion formed in a circular shape into an oval so as to be in close contact with the cylindrical duct.

Then, the processing disk was transferred to a separate puncher to manufacture a connector for ducts through the steps of punching holes in the protrusions.

In the conventional method for manufacturing a connector for duct, as described above, the process disc cut in a circular shape is transferred to a position where separate bending molds, cutters, and perforators are installed according to each step while undergoing processes of bending, elliptical cutting, and hole drilling. Each process was carried out, and accordingly, labor costs are increased because the manufacturing process time is lengthened by the time transferred to each device in the process of manufacturing the connector for the duct, and the manpower for operating or supervising each device is required. There is a problem that the production cost is increased to increase, the productivity of the connector for the duct is lowered.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a duct connector manufacturing mold that can quickly produce a duct connector, a manufacturing cost is reduced and productivity is improved.

The present invention duct connector mold for achieving the above object is in close contact with the outer circumferential surface of the duct on the upper portion to connect the fume exhaust hood for sucking the smoke generated when the meat is baked and discharged to the cylindrical duct to the cylindrical duct Claims [1] A method for manufacturing a hollow duct connector having a flange portion, comprising: a lower mold having a raised portion at its center; Chucking means positioned on an upper portion of the lower mold to chuck a machining disc; An upper mold provided opposite to the upper portion of the lower mold and configured to be capable of raising and lowering and having a bending hole in which the protrusion is entered; A punch for raising and lowering at an inner center of the upper mold to punch the center of the processing disc; An upper mold raising and lowering cylinder connected to a plurality of upper circumferences of the upper mold to raise and lower the upper mold; It is connected to the upper portion of the punch, characterized in that it comprises a punch lift cylinder for lifting, lowering the punch.

According to another aspect of the present invention, a connector manufacturing mold for a duct is provided with a punch position hole in which the upper mold is formed such that the punch is inserted above the center of the bending hole, and the recess is curved concave toward the center inside the bending hole. It is characterized by having one bending surface.

Another feature of the present invention duct connector mold, the lower mold has a punched hole through which the punch enters the center of the protrusion, the convexly curved toward the protrusion side around the lower side of the lower die is lowered And a second bending surface corresponding to the first bending surface.

The method for manufacturing a connector for a duct of the present invention for achieving the above object is characterized in that the upper mold and the punch are sequentially lowered to form a flange portion and a hole in the processing disc.

Another feature of the method for manufacturing a connector for a duct of the present invention comprises the steps of: cutting the processing disc into an oval shape; Chucking the processing disc with the chucking means between the upper mold and the lower mold; The upper mold is lowered so that the bending hole corresponds to the circumference of the protruding portion while pressing the processing disc so that the center of the processing disc protrudes along the shape of the protruding portion, and the end circumference of the first bending surface and Allowing the flange portion to be formed while bending along the second bending surface; Lowering the punch toward the protrusion to enter the drilling hole to drill a hole in the center of the processing disc protruding along the protrusion; Lifting the upper mold and the punch to separate the lower mold from the lower mold; And removing the processed master disk from the lower mold.

According to the duct connector manufacturing mold according to the present invention and a method for manufacturing a duct connector using the same, after cutting the processing disc 70 to oval, the processing disc 70 is the upper mold 20 and the lower mold (10) In the process of drilling the flange portion 71 and the hole 73 in the processing disc 70 by the step of sequentially lowering the upper mold 20 and the punch 40 in a state located between the The process can be made quickly in one place without having to move the processing disc 70 according to the process, accordingly, the time for manufacturing the duct connector 80 can be very shortened, labor costs and manufacturing costs reduced The productivity of the connector 80 for ducts can be improved.

1 is a schematic cross-sectional view showing the configuration of the connector manufacturing mold for duct of the present invention.

2 is a plan view showing a machining disc according to the present invention.

3 to 5 are cross-sectional views showing the manufacturing process of the connector for the duct according to the present invention.

Figure 6 is a perspective view of the connector for the duct made in accordance with the present invention.

Explanation of symbols on the main parts of the drawings

10; Bottom mold 11; projection part

22; First bending surface 13; Drilling hole

20; Upper mold 21; Banding hole

12; Second bending surface 23; Punch Position Hole

30; Chucking means 40; punch

50: upper mold lifting cylinder 60; Punch lift cylinder

70; Working disk 71; Flange

72; Hole 80; Duct Connection

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 is a cross-sectional view showing the configuration and shape of the duct connector manufacturing mold according to the present invention, the duct connector manufacturing mold according to the present invention as shown in Figure 1, the lower mold 10, the chucking means 30, It includes an upper mold 20, a punch 40, an upper mold lifting cylinder 50, a punch raising and lowering cylinder 60.

The lower mold 10 has an upwardly projecting portion 11 at the center, and the upper mold 20 is provided to be able to move up and down to face the upper portion of the lower mold 10 and to have the protrusion 11 at the center thereof. Has a bending hole 21 to be entered.

In particular, the upper mold 20 is concavely curved toward the center inside the punch position hole 23 and the bending hole 21 so that the punch 40 is inserted into the center upper side of the bending hole 21. It has a first bending surface 22.

In addition, the lower mold 10 has a perforation hole 13 through which the punch 40 enters the center of the protrusion 11, and is convexly curved toward the protrusion 11 side around the lower side so that the upper mold ( 20 has a second bending surface 12 corresponding to the first bending surface 22 when descending.

The punch 40 is provided to be capable of raising and lowering in the inner center of the upper mold 20 so as to punch the center of the processing disc 70 and, when lowering, punch the protrusion 11 of the lower mold 10. It enters the hole 13.

The chucking means 30 may include a chucking chuck 32 for holding the processing disc 70 and a cylinder 31 for moving the chucking chuck 32 forward and backward.

The upper mold lifting cylinder 50 is connected to a plurality of upper circumference of the upper mold 20 to raise and lower the upper mold 20.

The punch raising and lowering cylinder 60 is connected to an upper portion of the punch 40 to raise and lower the punch 40.

The duct connector can be manufactured by the present invention duct connector mold, while the upper mold 20 and the punch 40 are sequentially lowered in sequence in accordance with the characteristics of the present invention when manufacturing the duct connector Flange 71 and the hole 73 can be formed in the processing disc 70, which will be described in detail as follows.

First, the plate-shaped processing disc 70 is cut into ellipses as shown in FIG.

Then, the machining disc 70 is located between the upper mold 20 and the lower mold 10, and then the cylinder of the chucking means 30 is advanced to process the chucking chuck 32 as shown in FIG. Chuck the disc 70.

When the processing disc 70 is located between the upper mold 20 and the lower mold 10, the upper mold lifting cylinder 50 connected to the upper mold 20 is operated to Figure 3 and As described above, the upper mold 20 is lowered, and the upper mold 20 corresponds to the circumference of the protrusion 11 while the bending hole 21 presses the processing disc 70. The chucking means 30 which chucked the processing disc 70 when the pressing the processing disc 70 puts the processing disc 70.

Accordingly, as shown in FIG. 3, the center of the processing disc 70 protrudes along the shape of the protrusion 11, and the end circumference is bent along the first and second bending surfaces 22 and 12. The flange portion 71 is formed.

Next, as shown in Figure 4 by operating the punch raising and lowering cylinder 60 to lower the punch 40 connected to the projecting portion 11 toward the protruding portion (11) protruding formed along the protrusion (11) In the center of the hole 73 is drilled.

Then, as shown in FIG. 5, the upper mold 20 and the punch 40 are lifted and separated from the lower mold 10, and the finished working disc 70, that is, the duct connector 80, is finished. The lower mold 10 is removed, and thus, the flange portion 71 and the duct connector 80 having a hole 73 formed in the center thereof are completed as shown in FIG. 6.

As such, when the duct connector 80 is manufactured using the duct connector mold according to the present invention, the duct connector 80 can be quickly manufactured.

That is, after cutting the processing disc 70 in an elliptical shape, the upper mold 20 and the punch 40 in a state where the processing disc 70 is located between the upper mold 20 and the lower mold 10. In the step of drilling the flange portion 71 and the hole 73 in the processing disc 70 by the step of successively descending in sequence, without having to move the processing disc 70 according to the process in one place quickly The process can be done.

Accordingly, since the machining disk 70 does not need to be processed while transferring the machining disk 70, the manufacturing time of the connector 80 for the duct can be very shortened, and the labor cost and manufacturing cost are reduced. Can be reduced.

In addition, since the processing time of the processing disc 70 is shortened, mass production is possible in a short time, and thus productivity of the duct connector 80 may be improved.

Claims (5)

delete delete delete In the mold manufacturing the connector for the duct to discharge the smoke, A bending hole 21 formed at the inner center, a punching position hole 23 connected to the bending hole 21 at the upper inner side, and a first bending surface 22 formed concave along one edge of the bending hole 21. Upper mold 20 having, A protrusion 11 inserted into the bending hole 21 and having a perforation hole 13 formed at an inner center thereof, and a lower outer circumferential surface of the protrusion 11 and corresponding to the first bending surface 22. A lower mold 10 comprising a convex second bending surface 12, Chucking means 30 is located between the upper mold 20 and the lower mold 10 and chucking the machining disc 70, A punch 40 which is located in the punch position hole 23 and which can be inserted into the drilling hole 13 while forming a hole 73 in the processing disc 70, The upper mold lifting cylinder 50 is connected to a plurality of the upper circumference of the upper mold 20 to raise and lower the upper mold 20, and A punch raising and lowering cylinder 60 connected to an upper portion of the punch 40 and operated independently of the upper mold raising and lowering cylinder 50 to lift the punch 40. Including; The upper mold lifting cylinder 50 is lowered so that the upper mold 20 presses the processing disc 70, and the pressed processing disc 70 wraps the protrusion 11 while the protrusion 11 is closed. And a flange portion 71 is formed by the second bending surface 12 and the first bedding surface 22 at least a portion of the processing disc 70. As the lowering cylinder 60 descends, the punch 40 is inserted into the bending hole 21 while forming a hole 73 in the processing disc 70 by pressing the center portion of the processing disc 70. Duct connector manufacturing mold. delete