KR200479760Y1 - Elbow cutting machine - Google Patents

Abstract

The present invention relates to an elbow model cutter, comprising: a frame; A pair of support plates fixed at intervals on a part of the length of the frame; A roller table disposed between the pair of support plates, the roller table including a plurality of pairs of conveying rollers assembled on the lower side of the support plate and configured to convey the iron plate; First and second flow plates provided on outer sides of the support plate so as to be spaced apart from each other; A rotating shaft installed through the pair of second flow plates; A swash plate disposed between the first and second flow plates and fixed to the rotating shaft; A first blade axis passing through the pair of support plates and having opposite ends fixed to the first flow plates on both sides; A second blade axis passing through the pair of support plates and having opposite ends fixed to the second flow plates on both sides; A first and second blade blocks fixed to the first and second blade shafts and having a blade for cutting an iron plate at a lower end thereof; A first cam roll which is brought into contact with one side inclined surface of the swash plate to guide the steel plate into a specific curvature shape; A second cam roll which is guided to contact the other inclined surface of the swash plate to cut the iron plate into a specific curvature shape; First and second cylinders respectively fixed to outer surfaces of one of the pair of support plates and connected to the first and second flow plates, respectively; Shaped fixing guide and a moving guide installed in front of the roller table and facing each other so as to guide the opposite ends of the inserted iron plate so as not to be shaken; The first and second cylinders are operated in opposite directions to approach the first and second flow plates or to move away from each other to select an inclined plate portion to be brought into contact with the first and second cam rolls of the two swash plate portions. To provide an elbow model cutter.
According to the present invention, it is possible to precisely match the both ends of the elbow model by preventing the occurrence of the deflection during the transfer process after the iron plate is inserted, and it is possible to accurately align the ends of the elbow model to produce a high quality elbow product.

Description

ELBOW CUTTING MACHINE

The present invention relates to an elbow model cutter, more specifically, it is capable of putting in a unit of a plate, enhancing the quality by making both ends of the elbow model match accurately without any error, and separating the roller table as a whole unit The present invention relates to an elbow model cutter having improved maintenance efficiency.

In general, air ducts can be used for a variety of applications, mainly used in heating and air conditioning systems, and are used to transport air or powder.

Such an air duct needs to be bent at various angles such as 90 ° and 45 ° depending on the installation position, and in this case, an elbow is used.

Such an elbow is typically formed as shown in Fig. 1, and is manufactured by cutting a duct of a generally cylindrical shape by a cutter, or by making a mold in the same shape as the elbow to be cut, inserting an iron plate into the mold, do.

In this case, it is necessary to individually adjust the cutting points of the cutter by the diameter (size) of each elbow, or to individually manufacture the respective molds. Therefore, when the cutter is used, the operation of the cutter is troublesome. There is a problem that the manufacturing cost is increased, and further, there is a risk of press work, and a large base metal is not capable of producing a metal mold, and even if a metal mold can be manufactured,

Thus, an elbow model cutter for mounting a CAD program and cutting a point to be cut accurately with laser or plasma has been disclosed.

However, these products are considerably expensive due to the use of CAD programs, laser and plasma devices, and the complexity of the components, which leads to a problem of requiring a large maintenance cost and consuming a considerable amount of electric power.

For this reason, the present applicant has developed a patented technology that improves the problems of the prior art and discloses it as disclosed in Korean Patent Publication No. 2014-0013460.

However, in the case of the open patent, a deflection occurs in the transfer process after the insertion of the sheet, which is the plate, and the ends of the elbow model do not coincide exactly, so that it is difficult to fit the ends and defects are generated.

In addition, when an abnormality occurs in the transport roll assembly for transporting the iron plate, that is, the roller table, it is disadvantageously required to disassemble and disassemble it.

In addition, since the transfer rolls are worn in the process of being used for a long period of time, there is no means for correcting the rolls, which causes a snaking phenomenon, which leads to one side of the transfer of the iron plate.

The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide a method of manufacturing an elbow model by uniformly transferring a steel plate as an object material for making an elbow model, This makes it possible to produce high quality elbow products. When problems occur in the transport roll, the entire roller table can be taken out and removed easily and quickly, ensuring maintenance convenience and promptness, The present invention has been made to provide an elbow model cutter that automatically adjusts the roll gap to prevent meander during iron sheet transfer.

According to an aspect of the present invention, A pair of support plates fixed at intervals on a part of the length of the frame; A roller table disposed between the pair of support plates, the roller table including a plurality of pairs of conveying rollers assembled on the lower side of the support plate and configured to convey the iron plate; An input unit provided at one side of the roller table; A discharge unit provided on the opposite side of the charging unit with the transfer roller being the other side of the roller table interposed therebetween; First and second flow plates provided on outer sides of the support plate so as to be spaced apart from each other; A rotating shaft installed through the pair of second flow plates; A swash plate disposed between the first and second flow plates and fixed to the rotating shaft; A first blade axis passing through the pair of support plates and having opposite ends fixed to the first flow plates on both sides; A second blade axis passing through the pair of support plates and having opposite ends fixed to the second flow plates on both sides; A first and second blade blocks fixed to the first and second blade shafts and having a blade for cutting an iron plate at a lower end thereof; A first cam roll which is brought into contact with one side inclined surface of the swash plate to guide the steel plate into a specific curvature shape; A second cam roll which is guided to contact the other inclined surface of the swash plate to cut the iron plate into a specific curvature shape; First and second cylinders respectively fixed to outer surfaces of one of the pair of support plates and connected to the first and second flow plates, respectively; Shaped fixing guide and a moving guide installed in front of the roller table and facing each other so as to guide the opposite ends of the inserted iron plate so as not to be shaken; The first and second cylinders are operated in opposite directions to approach the first and second flow plates or to move away from each other to select an oblique plate portion to be brought into contact with the first and second cam rolls of the two oblique plate portions. To provide an elbow model cutter.

At this time, the conveying roller is also formed of a rubber material having elasticity.

In addition, the conveying roller on the upper side of the conveying rollers is characterized in that the roll gap with the lower conveying roller is always kept constant by the tension adjusting bolts coupled to the roller shaft under the interposition of the springs.

The first cam roll and the second cam roll may be configured to change a point of contact with both side surfaces of the swash plate portion.

In addition, the charging unit may include a charging plate protruding forward of the roller table so as to coincide with the charging position of the roller table, a fixing guide of a '' shape fixed to one end of the charging plate, And a ball screw fixed to the lower end of the insertion plate and rotatably coupled to the movement guide.

The roller table may include a table frame on which a plurality of pairs of transport rollers are rotatably mounted, A support plate which is supported at the lower end of the table frame and rotates the lower conveying roller; A fixing piece for fixing the table frame to the base plate by bolts; A support rod on which the support plate is seated; A pedestal having a catching jaw for receiving the pedestal; And a fixing block for bolting the supporting plate to the pedestal, wherein a tip of the supporting plate is bolted to a fitting plate constituting the fitting portion so that only a plurality of bolts are loosened during repairing and the table frame and the supporting plate It is also characterized by being configured to be able to listen at one time.

According to the present invention, it is possible to precisely match the both ends of the elbow model by preventing the occurrence of the deflection during the transfer process after the iron plate is inserted, and it is possible to precisely align the ends of the elbow model to produce a high quality elbow product.

Further, since the roller table, which is a transport roll assembly for transporting the steel plate, can be pulled out entirely, there is an advantage that it can be repaired easily and quickly when an abnormality occurs in the transport roll.

In addition, even if the feed rolls are worn during the long-term use, it is automatically corrected and the upper and lower roll gaps are appropriately maintained. Therefore, it is possible to suppress the meander phenomenon which is caused by the deviation of the feed rolls .

Figure 1 is a schematic view of a typical conventional elbow.
FIG. 2 is an exemplary view showing the shape of an iron plate cut by an elbow model cutter according to the present invention. FIG.
3 is an exemplary perspective view of an elbow model cutter according to the present invention.
Figure 4 is an exemplary partial plan view of an elbow model cutter according to the present invention.
Fig. 5 is an enlarged view of the main part of the elbow model cutter according to the present invention.
6 is a front view of the blade according to the present invention.
FIGS. 7 and 8 are views for explaining the operation principle of the elbow model cutter according to the present invention.
9 is a view for explaining the operation principle of the blade according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structures or functional descriptions are merely exemplified for the purpose of describing the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. It is to be understood, however, that the appended claims are intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the appended claims, rather than limiting the embodiments in accordance with the concepts herein.

As shown in FIG. 2, the elbow model members 11, 12, 13, 14, and 15, which are cut through the elbow model cutter according to the present invention, are cut into various shapes. Are precisely matched with each other.

Particularly, although the plate-shaped steel sheet as the target material may be continuously supplied in the form of rolls for the shaping process, the length of the plate is continuous without interruption when the rolls are continuously inserted, It is preferable to intermittently inject the material into a single plate of a predetermined length.

In addition, the elbow model cutter according to the present invention includes a frame 100, as shown in FIG.

At this time, the frame 100 is a part forming the skeleton of the elbow model cutter according to the present invention, and may be manufactured in various shapes, but it is preferably formed as a rectangular box as shown in the figure.

Also, the frame 100 is provided with a pair of support plates 110 vertically fixed with a predetermined spacing therebetween.

As shown in FIGS. 3 and 4, the swash plate unit 200 is vertically passed through the rotary shaft 210, and the swash plate unit 200 is mounted on the rotary shaft 210 And a pair of swash plates 230a and 230b which are obliquely fixed to left and right sides of the center plate 220 in a symmetrical manner.

In this case, the rotation shaft 210 is installed to penetrate both the plate center of the pair of swash plates 230a and 230b and the center of the plate of the center plate 220, Key, and so on.

Therefore, when the rotation shaft 210 rotates, the center plate 220 rotates, so that the swash plate 200 including the swash plates 230a and 230b itself rotates.

As a result, the swash plates 230a and 230b can perform a kind of cam function. Depending on how far the first and second cam rolls 240 and 250 contact the center of the swash plate 230a and 230b, The width or size that can be made can vary.

That is, the curvatures of the elbow model members 11, 12, 13, 14, and 15 illustrated in FIG. 2 are processed in various forms according to the contact points between the swash plates 230a and 230b and the first and second cam rolls 240 and 250 You can do it.

At this time, the first cam roll 240 is coupled to the adjustment shaft 242, which is a type of ball screw, and moves in the front-rear direction (i.e., width direction) of the frame 100, The control shaft 242 is coupled to the lower end of the first flow plate 244 and the first flow plate 244 is connected to the flow plate shaft 246 passing through the lower end of the support plate 110 And is configured to be able to move in the left-right direction (i.e., longitudinal direction) of the frame 100 together with the flow plate shaft 246. As shown in Fig.

A pair of first and second blade shafts 300 are fixed up and down in parallel with the flow plate shaft 246. The first blade shaft 300 passes through the support plate 110, Are fixed on the first flow plate 244, respectively.

The first blade block 310 is fixed to the first blade block 300 and can be moved left and right along the first blade block 300. The first blade block 310 is fixed to the lower end surface of the first blade block 310, 12, 13, 14, and 15 by cutting a steel plate with a rotary blade 700 (see FIG. 6) installed therein.

In addition, the first blade block 310 should be positioned between the pair of support plates 110.

Meanwhile, the second cam roll 250 is fixed to the adjusting piece 252a through the second flow plate 254, and the adjusting piece 252a is fixed to the second flow plate 254, And the second flow plate 254 is configured to penetrate the support plate 110 so that the second flow plate 254 can pass through the support plate 110. [ And the second flow plate 254 is positioned between the swash plate unit 200 and the swash plate unit 200 so that the swash plate unit 200 can be moved in the left and right direction And is opposed to the first flow plate 244.

A pair of second blade shafts 320 are fixed up and down parallel to the first blade shaft 300. The second blade shaft 320 passes through the support plate 110 And both ends thereof are fixed on the second flow plate 254.

The second blade block 330 is fixed to the second blade axis 320 and can be moved left and right along the second blade axis 320. The second blade block 330 is fixed to the lower end surface of the second blade block 330 12, 13, 14, and 15 by cutting a steel plate with a rotary blade 700 (see FIG. 6) installed therein.

In addition, the second blade block 330 should be positioned between the pair of support plates 110.

6, the rotatable blade 700 includes an upper fixture 710, an intermediate rotator 720, a lower extension 730, an upper blade 740 and a lower blade 750, .

The upper fixing body 710 is coupled to the first and second blade blocks 310 and 330 and a fixing means including screws for fixing the position of the blade 340 is provided on the upper fixing body 710 Can be installed.

The intermediate rotator 720 is coupled to the lower portion of the upper fixture 710 and the upper fixture 710 and the intermediate rotator 720 are rotatably coupled by a bearing 760 do.

The lower extension 730 is a part extending downward from one side of the intermediate rotation body 720 and the upper blade 740 and the lower blade 750 are coupled to the lower extension 730. In the present invention, The lower extension 730 is characterized in that it extends downward from one side of the intermediate rotating body 720 and extends at an inclined angle at a predetermined angle. That is, the lower extension 730 extends obliquely at a predetermined angle with respect to the vertical plane of the intermediate rotating body 720. There is no restriction on the angle here, but it is preferably inclined at an angle of 3-30 DEG.

Thus, the process of cutting the steel plate is as shown in Figs. 7 to 9.

That is, when the rotary shaft 210 rotates, the left swash plate 230a and the right swash plate 230b, which are slantedly coupled to the rotary shaft 210, rotate at a constant speed around the rotary shaft 210. [

As the left swash plate 230a and the right swash plate 230b are rotated, the first cam roll 240 and the second cam roll 250, which are in contact with the left swash plate 230a and the right swash plate 230b, rotate along these surfaces.

At this time, since the first and second cam rolls 240 and 250 are elastically pressed, the first and second cam rolls 240 and 250 always make uniform contact, and the inclined surfaces of the swash plates 230a and 230b serve as cams, The reciprocating motion is repeatedly performed.

In accordance with the reciprocating motion, the rotating blade 700 mechanically connected to these reciprocating motions also reciprocates in the left-right direction (Y).

While the blade 700 reciprocates in the left and right direction, the iron plate is fed at a constant speed in the constant direction Z by the feed roller 420, so that the iron plate is cut into the shape shown in FIGS.

For example, in FIG. 7, the first cam roll 240 and the second cam roll 250 have a shape which is opened to the maximum in the left-right direction by the left swash plate 230a and the right swash plate 230b, The blade 700 fixed to each of the blocks 310 and 330 has a maximum widened shape.

In this state, when the rotary shaft 210 rotates to have a shape as shown in FIG. 8, the respective blades 700 of the first blade block 310 and the second blade block 330 are in contact with each other as much as possible.

In this way, during the transition from FIG. 7 to FIG. 8, the iron plate is conveyed by the conveying roller 420 and cut into a shape as shown in FIG.

An important point in this design is the movement path of the blade.

The blade 700 in the present invention has a structure in which the center in the vertical direction of the upper fixing body 710 and the intermediate rotating body 720 and the center in the vertical direction of the upper blade 740 and the lower blade 750 do not coincide And is inclined with a predetermined angle with the vertical surface of the upper fixing body 710 so that the blade 700 cuts the steel plate while drawing the curve of the curve as shown in FIGS.

9 shows the movement of the blade. When the blade 700 is at the positions of A, C, and E, the blade 700 is positioned parallel to the feeding path Z of the iron plate, When the blade 700 is in the position of B, the blade 700 is slightly deformed to the left side. When the blade 700 is in the position of D, the blade 700 is slightly deformed to the right.

The turning of the blade 700 is performed while the rotational force X of the rotating shaft 210 is switched to the reciprocating motion Y in the left and right direction and is naturally curved while being coupled with the forward feed Z of the iron plate.

In addition, the swash plate unit 200 is installed on both sides of the frame 100. If one side is used for cutting four elbow model members in one machining operation, the other side is used for five elbows It is understood that it is used when cutting a model member.

Therefore, means for selectively using the swash plate portion 200 must be provided.

To this end, the present invention further includes a first cylinder (CY1) and a second cylinder (CY2) on the outer surface of one of the support plates (110).

The first and second cylinders CY1 and CY2 are provided with first and second rods CR1 and CR2 respectively and the first rod CR1 is connected to the first flow plate 244 and the second rod CR2 is fixed directly to the second blade shaft 320 through the second bracket BR2.

Accordingly, when the swash plate unit 200 is to be used alternately, the first and second cylinders CY1 and CY2 may be operated to cross each other.

That is, the first cylinder CY1 is operated to be pulled in and the second cylinder CY2 is pulled out.

The first flow plate 244 connected to the first flow plate 244 moves toward the support plate 110 to move the first cam roll 240 away from the slopes 230a and 230b, The second flow plate 254 having the fixed end of the second blade axis 320 is pushed along the rotation axis 210 and is moved between the first flow plate 244 and the first flow plate 244, The second cam roll 250 is also separated from the inclined surfaces 230a and 230b.

On the other hand, since the opposite swash plate portion 200 has the same structure, the cam rolls can contact with the swash plate portion 200, and the cam shape can be curved.

On the other hand, a roller table 400 is installed below the first and second blade blocks 310 and 330.

The roller table 400 includes a table frame 410 and a support plate 450 on which the table frame 410 is seated and fixed. The table frame 410 and the support plate 450 are provided with conveying rollers 420, The conveying rollers on the upper side of the conveying rollers 420 are rotatably assembled on the table frame 410 and the conveying rollers on the lower side are rotatably mounted on the support plate 450, Assembled. In particular, the distance between the rollers is adjusted so that at least three rollers can contact the iron plate during movement.

At this time, a loading unit 500 is provided at one side of the roller table 400, and a discharging unit 600 is provided at the other side.

Two pairs of the conveying rollers 420 are disposed adjacent to each other from the input unit 500 toward the discharge unit 600. Two pairs of the conveyance rollers 420 are spaced apart from the two pairs, The first and second blade blocks 310 and 330 are disposed in a spaced-apart space so as to be cut and processed.

Particularly, the iron plate is passed between the pair of conveying rollers 420. The pair of conveying rollers 420 having upper and lower boundaries are engaged with each other with the iron plate sandwiched therebetween, and the conveying rollers 420, The rotary blade (not shown) provided on the lower end surface of the first and second blade blocks 310 and 330 is cut.

Here, the conveying roller 420 is preferably formed of an elastic rubber material so as to prevent slippage during conveyance of the steel sheet and to prevent skewing of the conveyed steel sheet.

In addition, since the feeding efficiency is lowered due to abrasion for a long period of time and there is a high risk of occurrence of meandering, a tension adjusting bolt 430 for elastically pressing the rollers of the upper rolls of the respective feed rollers 420 downward Can be installed.

The tension adjusting bolt 430 is bolted to the upper surface of the table frame 410, and a spring 440 (see FIG. 5) is inserted to adjust the tension of the tension adjusting bolt 430.

5, the roller table 400 includes a support plate 450. The support plate 450 is provided with feed rollers on the lower side of the upper and lower feed rollers, The table frame 410 is seated on the upper surface of the table 450 and the table frame 410 is bolted to the side of the receiving plate 450 through the fixing pieces 412 with bolts 490, .

The support plate 450 is mounted on the support rod 480. The support rod 480 is fixed on the support plate 110 and the support 470 and the support 470 is fixed on the frame 100 .

At this time, a hooking protrusion T is formed on the upper surface of the pedestal 470 and a part of the pedestal 480 is mounted on the hooking protrusion T to be stably fixed without being warped, And is configured to support the support plate 450.

In addition, a plurality of pulleys P are provided on the side of the support plate 450. The pulleys P are driven by a driving motor (not shown) provided in a lower space of the frame 100 through a belt B And the power transmitted thereto is configured to simultaneously rotate the plurality of feed rollers 420 through another pulley and a belt.

The supporting plate 450 is fixed to the side surface of the loading plate 510 through the fixing bolts 490 and the supporting plate 450 and the supporting base 470 are fixed to the fixing bolts 460 490), thereby securely supporting the support structure.

However, in the present invention, when only the fastening bolt 490 is removed and only the belt B is removed, the entire roller table 400 is taken out at once And can be easily repaired.

On the other hand, the charging unit 500 is provided with a charging plate 510 for charging an iron plate, and a fixing guide 520 and a flow guide 530 are provided on the upper surface of the charging plate 510.

Since the fixed guide 520 is completely fixed and the flow guide 530 is engaged with the ball screw 540 fastened to the lower portion and moved along the ball screw 540, Since the fixed guide 520 and the flow guide 530 are formed in a substantially 'C' shape, they are guided to be accurately inserted without being shaken when the iron plate is inserted.

As described above, the elbow model cutter according to the present invention is constructed such that the first and second cam rolls (or the first and second cam rollers) contacting each other in such a manner that any one of the two swash plate parts 200 installed on both sides of the frame 100, 240, and 250, and the conveying roller 420 constituting the roller table 400 is made of a rubber material having elasticity, and a tension that is elastically actuated to compensate for wear and keep the roll gap constant at all times Since the steel plate to be conveyed is precisely cut without being meandered by providing the adjusting bolts 430, both ends of the elbow model member are precisely aligned after cutting, which is advantageous in that the product quality can be improved.

In addition, since the roller table 400 can be taken out as a whole, it is possible to reduce the time and cost required for maintenance and waste of manpower, and it is also advantageous that the convenience of repairing and repairing is maximized.

100: frame 200:
300: first blade axis 320: second blade axis
400: roller table 500: input part
600:

Claims (6)

frame; A pair of support plates fixed at intervals on a part of the length of the frame; A roller table disposed between the pair of support plates, the roller table including a plurality of pairs of conveying rollers assembled on the lower side of the support plate and configured to convey the iron plate; An input unit provided at one side of the roller table; A discharge unit provided on the opposite side of the charging unit with the transfer roller being the other side of the roller table interposed therebetween; First and second flow plates provided on outer sides of the support plate so as to be spaced apart from each other; A rotating shaft installed through the pair of second flow plates; A swash plate disposed between the first and second flow plates and fixed to the rotating shaft; A first blade axis passing through the pair of support plates and having opposite ends fixed to the first flow plates on both sides; A second blade axis passing through the pair of support plates and having opposite ends fixed to the second flow plates on both sides; A first and second blade blocks fixed to the first and second blade shafts and having a blade for cutting an iron plate at a lower end thereof; A first cam roll which is brought into contact with one side inclined surface of the swash plate to guide the steel plate into a specific curvature shape; A second cam roll which is guided to contact the other inclined surface of the swash plate to cut the iron plate into a specific curvature shape; First and second cylinders respectively fixed to outer surfaces of one of the pair of support plates and connected to the first and second flow plates, respectively; Shaped fixing guide and a moving guide installed in front of the roller table and facing each other so as to guide the opposite ends of the inserted iron plate so as not to be shaken; The first and second cylinders are operated in opposite directions to approach the first and second flow plates or to move away from each other to select an oblique plate portion to be brought into contact with the first and second cam rolls of the two oblique plate portions. Elbow model cutter. The method of claim 1,
Wherein the conveying roller is made of a rubber material having elasticity.
The method according to claim 1 or 2,
Wherein an upper roll of the conveying roller is always kept in a roll gap with the lower conveying roller by a tension adjusting bolt coupled to a roller shaft under the interposition of a spring.
The method of claim 1,
Wherein the first cam roll and the second cam roll are configured to change a point of contact with both side surfaces of the swash plate portion.
The method of claim 1,
The loading unit includes a loading plate protruding forwardly of the roller table so as to coincide with a loading position of the roller table, an 'a' shaped fixing guide fixed to one side of the upper side of the loading plate, And a ball screw fixed to the lower end of the lower plate and rotatably coupled to the moving guide. The method of claim 1,
Wherein the roller table includes a table frame on which a plurality of pairs of conveying rollers are rotatably disposed, A support plate which is supported at the lower end of the table frame and rotates the lower conveying roller; A fixing piece for fixing the table frame to the base plate by bolts; A support rod on which the support plate is seated; A pedestal having a catching jaw for receiving the pedestal; And a fixing block for bolting the supporting plate to the pedestal, wherein a tip of the supporting plate is bolted to a fitting plate constituting the fitting portion so that only a plurality of bolts are loosened during repair and the table frame and the supporting plate Wherein said at least one elongated member is configured to be able to be lifted at one time.

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