KR940010785B1 - Saw - Google Patents

Abstract

The method and apparatus performs the sequencial processes of manufacturing the band saw used for a bone cutter of a food processing machine. The cutter blade can be sharp-edgedly formed by twice cutting process of overlapped blade grooves. The method comprises the steps of: forming a plurality of center holes (4); forming first heart type blade grooves (5,51) at more than two holes among the holes (4); forming saw blades (7,71) by cutting the center holes into other blade grooves (6,61) overlapped with the parts of the blade grooves(5,51); offsetting the saw blades (7,71) in zig-zag type.

Description

Band saw manufacturing method and apparatus

1A is a plan view of a conventionally produced band saw, (b) is an explanatory view of a conventional saw blade manufacturing state.

2 is a process chart according to the manufacturing method of the present invention, (a) is a state in which the primary process is completed, (b) is a state in which the secondary process is completed, (c) is a state in which the tertiary process is piped, (d) Or the fourth process is completed.

3 is a bottom view of a working plate according to the manufacturing apparatus of the present invention.

4 is a plan view of the support plate according to the manufacturing apparatus of the present invention.

5 is an exploded cross-sectional view showing the configuration of the band saw manufacturing apparatus according to the present invention.

6 is an enlarged excerpt of a saw blade formed by the manufacturing apparatus of the present invention.

7 is an enlarged cross-sectional view of the saw blade formed by the present invention in the state of being offset up and down.

8 is a cross-sectional view showing the saw blade of the band saw is offset.

* Explanation of symbols for main parts of the drawings

A: Band saw member 1: Band saw manufacturing unit

2: operating plate 3: support plate

4: center ball 5, 51: first saw blade groove

6, 61: 2nd saw blade groove 7, 71: saw blade

8, 81: band saw 9: center cutting rod

10: central shaft 11, 111: first cutting rod

12, 121: 2nd cutting rod 13: square rod body

131, 19: offset means 14: bottom plate

15: center cutting 16: guide ball

17, 171: first saw blade cutting hole 20: guide rod

21: Information Home

The present invention relates to a method and apparatus for producing a band saw employed in a fracture machine of a food processing machine.

In the method for manufacturing a band saw employed in a conventional fracture machine, as shown in FIG. 1, one end surface of a band saw member 201 made of steel having a band saw width is generally used using a conventional band saw molding means (not shown). It was produced by punching cutting so that each saw blade is formed at a constant interval state.

However, in the saw blade formed by cutting in this manner, the saw blade 202, which is sequentially cut at regular intervals in the saw blade manufacturing method in the band saw forming means, has a slight rounding portion 203 during the cutting process as shown in FIG. Since the cutting is formed in a state that the bond is produced to the end of the saw blade is blunt. That is, the above phenomenon occurs in the cutting process in forming the saw blade 202 in the band saw member 201, as shown in Figure 1b first in the state in which one saw blade is formed by pressing the band saw forming means Since the next saw blade is cut in a broken line state in the drawing, that is, the straight portion 205 of the saw blade to be formed next after the end of the inclined portion 204 of the saw blade formed first is cut in succession or in the opposite manner. The end is not sharply cut by the resistance but is cut in a slightly rounded state. In particular, it is very difficult for the cutting operation to be accurately performed in the band saw manufacturing means, and it is difficult for the cutting structure to achieve precise cutting. This is a situation that occurs in the conventional band saw manufacturing process.

Therefore, in order to make the end of the saw blade blunted in the conventional band saw manufacturing process, the saw blades, which are primarily formed, are reworked so as to sharpen the blade by grinding the blades in a broken state as shown in FIG. 1A. . In addition, the offset operation for the best cutting function of the saw blade ground with a sharp blade state, that is, the operation of spreading the saw blade slightly outwards in order in a zigzag order, also uses a separate tool. I worked. Therefore, in the conventional band saw manufacturing method, it is not only cumbersome because each manufacturing process of the band saw must be separated and worked, and as a result, the unit cost of the product increases as the manufacturing process is complicated and the work time is required. Since the saw blade is formed only on one side of the band saw member, there was a problem that the rapid manufacture of the band saw could not be expected.

The present invention has been devised in view of the above-mentioned general drawbacks, and a single band saw manufacturing unit continuously performs each process operation as well as saw blades formed on both sides starting from the center of the band saw member. The purpose of the present invention is to provide a method and an apparatus for manufacturing a band saw, which enables a separate and independent band saw to be manufactured in one operation, which enables a quick and convenient manufacture of a band saw due to a simplification of the manufacturing process. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

EXAMPLE

[First Process]

First, the band saw member A having a predetermined width is introduced into the band saw manufacturing apparatus part 1 to be described later by using a separate band saw member supply means by a predetermined length, and then the plurality of center balls 4 have a predetermined interval. Drill. At this time, each center hole (4) formed at regular intervals is formed on the width center line of the band saw member (A) is a state of FIG.

[2nd process]

First saw blade grooves 5 and 51 in the shape of hearts are first formed in the second and fourth center holes 4 in the drawing at the distal end of the sento hole 4 of the band saw member A in which the primary process is completed. At this time, when the first saw blade grooves 5 and 51 are formed, the fifth and sixth center holes 4 are centered so that the band saw member does not move.

[3rd process]

In this way, if the band saw member A, in which the first and second processes have been completed, continues to move by the member supply means, the first and third center holes 4 are centered between the first saw blade grooves 5 and 51, respectively. The first saw blade groove (5) and the second saw blade groove (6) 61 having the same shape as the cut (61), but the second saw blade groove (6) (61) is formed as shown in the 2c first saw blade groove (5) (51) Both sides of the cut surface overlapping to form an acute angle saw blade (7) 71 of the pointed state is formed on both sides is divided into each divided band saw (8) (81).

[4th process]

In this way, each saw blade 7 and 71 of the band saws 8 and 81 formed separately are finally offset by zigzag to give the saw cutting function (see FIG. 2D). The process is complete.

On the other hand, the band saw member (A) is gradually entered by a separate supply means not shown in the process of each step is made, the length of the entry is set in advance in consideration of each process state in the band saw manufacturing apparatus. . In addition, each of the above processes are to be sequentially performed step by step to continuously enter the band saw member is able to continue to work continuously.

On the other hand, it will be described the configuration of the band saw manufacturing apparatus manufactured by the process step as described above.

That is, as shown in FIGS. 3 to 5, the band saw manufacturing device portion 1 for producing the band saw by the usual press means (not shown in the drawing) is largely the operating plate 2 and the support plate 3. A plurality of center cutting rods (9) and a pair of central shaft rods for drilling the center hole (4) in the band saw member (A) guided in the band saw manufacturing apparatus portion (1) to the operating plate (2) (10) are sequentially installed at regular intervals and the first cutting rods (11) and (111) for installing the first saw blade grooves (5) and (51) to one side thereof are installed at the same interval as the center cutting rod (9), The second cutting rods 12 and 121 for mounting the second saw blade grooves 6 and 61 are respectively installed with a slight distance to one side, and one side of the second cutting rods 12 and 121, respectively. Thus, the rectangular bar body 13 in which the offset means 131 is laid on the end is fixed to the horizontal axis. And, each part of the mall is guided while being guided by the low force plate 14 installed.

On the other hand, as the upper surface of the support plate 3 supporting the operating plate (2) as shown in Figure 4 a plurality of center cutting holes 15 and guide holes 16 and the first and second saw blade groove cutting holes (17) (171) (18) (181) and the offset means (19) formed symmetrically with the offset means (131) of the rectangular bar (13) and the respective parts of the operating plate (2) in the center of the horizontal axis Sequentially form positions that match each other.

In addition, the guide bar 20 is elastically installed at regular intervals at both ends of the center portion on the support plate 3, and the band saw member A supplied from the usual band saw member supply means is recirculated to the upper end thereof. It is configured to be transported stably without shaking.

The band saw manufacturing state of the present invention configured as described above will be described.

As shown in FIG. 5, the band saw member A, which is introduced into the band saw manufacturing unit 1 by a separate supply means, is guided to the guide groove 21 of the guide rod 20 provided on the support plate 3. It is entered. At this time, the band saw member (A) is first entered by the adjustment of the supply means as long as the length of the first process work, and when the entry is completed, the operating plate (2) is pressed by the usual press means and At the same time, a plurality of center cutting rods 9 are also moved together to enter the center cutting hole 15 of the support plate 3 and form a plurality of center holes 4 on the band saw member A at regular intervals. This will be completed, and the operating plate (2) is raised and returned.

As such, the band saw member A having completed the first process enters a predetermined length by the supply means and is positioned at the second process point, and the operating plate 2 is lowered again and the first operation is performed by the lowering of the operating plate 2. The cutting rods 11 and 111 are lowered together to enter the first saw blade groove cutting holes 17 and 171, and the second and fourth center balls of the plurality of center holes 4 drilled on the band saw member A are formed. The first saw blade groove (5) (51) of the shape is formed, at this time, the center shaft rod (10) is also lowered together and inserted into the guide hole (16) while being fitted in the fifth and sixth center hole during the second process operation The band saw member (A) is to be held so as not to flow.

On the other hand, at the same time the first saw blade groove (5) 51 is completed, the operating plate (2) is raised and returned again.

In this way, the band saw member A completed until the second process is brought back to the third process point by the supply means. That is, the first and third center holes 4 between the band saw member A and the first saw blade grooves 5 and 51 formed in the second and fourth center holes 4 in the second process are the second cutting rods. (12) 121 is located directly below. Therefore, the second cutting rods 12 and 121 are lowered by the lowering of the operating plate 2 to enter the second saw blade cutting holes 18 and 181 around the center hole directly below the band saw member A. The second saw blade grooves 6 and 61 are formed on both sides of one side of the first saw blade grooves 5 and 51, that is, the hatched portions are overlapped and cut as shown in FIG. 6.

Therefore, the tip of the saw blades 7 and 71 is divided into sharp angles without being rounded by the overlapping cut portions of the first and second saw blade grooves 5, 51, 6 and 61, respectively. When the tertiary process is completed, the first one band saw member A is divided into two band saws 8 and 81 on which saw blades 7 and 71 are formed, respectively.

Therefore, two band saws are produced in a single band saw member. On the other hand, as described above, the offset operation to give a cutting function to the saw blade (7) 71 formed on both sides of the band saw (8) 81 divided by the third process is completed, which is the support plate ( The square rod body 13 having the offset means 131 at the end thereof is lowered with the lowering of the operating plate 2 in a symmetrical manner with the offset means 19 of 3), to the position of the offset means 19 of the support plate 3. The saw blades 7 and 71 are opened in both directions as shown in FIG. 8 by zigzag pressing the saw blades 7 and 71 of each band saw 8 and 81 which have been entered. As the fourth step is completed, the one cycle of band saw production is completed.

On the other hand, while the band saw manufacturing state was described for each process for three minutes, each of the work processes are of course carried out continuously and repeatedly.

Further, since the guide rod 20 of the support plate 3 is elastically installed at a constant height, the bottom plate 14 of the operating plate 2 for each process of the band saw member A guided by the guide groove 21. Pressed by the band saw member (A) is operated in a state of being in close contact with the upper surface of the support plate (3), by the return of the operating plate (2) is raised back to the height of the initial state as well as the debris cut in each process It falls to the bottom of the supporting plate.

As described above, the present invention allows the production of the band saw to be sequentially performed for each process step in one manufacturing apparatus, thereby further increasing the production efficiency of the product as well as partially overlapping the saw blade grooves in two steps. The cutting blade is cut at the cutting edge so that the end of the saw blade is always formed at a sharp angle, so it is not necessary to separate blade work as in the prior art, and it is a special product that can continuously produce two band saws at once by each process work of the cycle. It is an invention having the effect of.

Claims (2)

The first step for forming a plurality of center holes (4) on the band saw member (A), and the heart-shaped first saw blade groove (5) at least about two places of the center holes (4) of the first step. A second saw blade groove 6 and 61 in the center hole between the second step for forming the blade 51 and a pair of first saw blade grooves 5 and 51 formed in the second step. The third step for forming the saw blades 7 and 71 by overlapping cutting, and offsetting the saw blades 7 and 71 separately formed to the divided band saws 8 and 81 side ends in a zigzag shape. A band saw manufacturing method characterized by consisting of a fourth step to. The band saw manufacturing apparatus 1 which is installed and operated in a conventional press means is provided with a plurality of center cutting rods 9, a central shaft rod 10, and first and second cutting rods 11, 111, 12, 121 and an offset. The operation plate 2 and the operation plate which are guided and guided while being guided to the bottom plate 4 in which the rectangular bar bodies 13 provided with the means 131 are each extended in a state in which the predetermined interval is maintained in the transverse direction, and the operation plate Located in the lower portion of (3), a plurality of center cutting holes 15, guide holes 16 and the first and second saw blade cutting holes (17) (171) (18) (181) and square rod body (13) Offset means (19) formed symmetrically with the offset means 131 of the) is formed in a position corresponding to each of the components of the operating plate (2), the guide groove 21 to which the band saw member (A) is conveyed Band saw manufacturing apparatus, characterized in that the coupling consisting of a guide plate (3) that is equipped with a guide rod (20) provided.