JPS6151488B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, a group of cutting blades includes a set of two opposing core wire cutting blades and a set of two coated cutting blades arranged in parallel and opposite to each other on both sides of the cutting blades, and There was a coated wire cutting/coating stripping machine comprising a clamp device that reciprocated above or in the middle of the group of cutting blades to pull out and pull the coated wire. In the case of such machines, it is necessary to change the sheathing stripping length each time depending on the use of the wire, and the method of adjusting the cutting blade spacing in conjunction with changing the sheathing stripping length is to change the cutting blade spacing. A method that has been used for many years is to increase or decrease the number of plate-shaped spacers of various thicknesses interposed between them. However, with this method, each time the coating stripping length is changed, the group of cutting blades is disassembled and many spacers of different thickness prepared in advance are selected, and when tightening with the tightening screw, the height of each cutting blade is Since extreme care must be taken to avoid irregularities and inclinations, this process is very complicated and time-consuming, and takes a great deal of time, resulting in a significant drop in processing performance. In order to solve the above-mentioned problem, the present applicant proposed a screw method for adjusting the distance between the coated cutting blade and the core wire cutting blade without relying on the insertion and removal of a spacer, as disclosed in Japanese Patent Application No. 143145/1983. We have developed a cutting blade spacing adjustment mechanism that allows only independent sliding movement. However, in this case, the cutting blade spacing can be adjusted very easily and finely, but even though the coated cutting blade is a consumable item, it must be machined from the raw material to create a special shape. Therefore, the price of replacement coated cutting blades was not only expensive due to the bulk of the processing fee, but the thin wall thickness of the blade was likely to cause distortion during heat treatment processes such as quenching, and there were also difficulties in terms of processing accuracy. . Furthermore, if the wire type or wire diameter changes frequently,
Each time, the cutting blade group had to be disassembled and the coated cutting blade had to be replaced, which was very time-consuming and caused unresolved problems.

In view of the above-mentioned current situation, the present invention provides a coated cutting blade holder on both sides of a core wire cutting blade that allows the coated cutting blade to be easily attached and detached from an upper part of the exterior where there is a relatively large amount of space, and the coated cutting blade holder By making it a screw type so that it can be moved forward and backward toward the core wire cutting blade, it is possible to easily and accurately adjust the cutting blade interval, and the coated cutting blade does not require any special work. , a coated wire cutting/coating stripping machine that is characterized by the ability to easily and quickly replace the coated cutting blade without reducing processing capacity even when the coated cutting blade must be replaced frequently. This invention provides a cutting blade spacing adjustment device for a machine.

This will be explained in detail with reference to the embodiment shown in the figure, but for convenience of explanation, left and right are shown in FIG.
side), top and bottom are front (part, direction, side), back (part, direction,
surface).

Reference numerals 1 and 2 denote front and rear cutter assemblies arranged opposite each other, which are fixed on the front slide and rear slide (not shown), respectively, and are connected to the machine via a rack 4 and an L-shaped rack 5 that mesh with the pinion 3. They are moved in mutually opposite directions by an appropriate drive source and transmission mechanism (not shown) provided in the main body.

Incidentally, since the front cutter assembly 1 and the rear cutter assembly 2 can have completely the same configuration, only the rear cutter assembly 2 will be explained in the following explanation.

Reference numeral 6 denotes a box-shaped main body with openings on the facing side and the top, and a long groove 6a is cut in the center of the lower surface in the front-rear direction for positioning when fixing to the rear slide.

7 and 8 are rectangular parallelepiped left and right blocks movably arranged at right angle corners between the bottom plate and the rear plate in the main body 6, and a core wire is cut between the left and right blocks 7 and 8 at the center of the main body 6. Place the blade 9 on the left side of the main body 6.
The core wire cutting blade 9 is clamped and fixed by push screws 10 screwed into the right side plate.

11 and 12 are the left and right blocks 7 and 12, respectively.
The left and right coated cutting blade holders are formed and placed symmetrically on the bottom plate inside the main body 6 on the front side of the block 8, and the chamfered portions 11a and 12a at the rear upper end and the front portions of the left and right blocks 7 and 8 The front upward slopes 7a and 8a formed at the upper end can be engaged with each other, and when engaged, a slight gap is formed between the rear surfaces 11b and 12b and the front surfaces 7b and 8b of the left and right blocks 7 and 8. C-rings 13a and 14 are inserted into the left and right side plates of the main body 6 toward the core wire cutting blade 9.
Adjustment screw bolt 1 supported freely by a
3 and 14 are screwed into the rear upper part of each coated cutting blade holder 11 and 12, and are moved in the left-right direction by operating the knobs 13b and 14b of the adjusting screw bolts 13 and 14. 15 and 16 are inserted into elongated holes 6b, 7c, and 8c cut in the left and right direction in the rear plate of the main body 6 and the left and right blocks 7 and 8, and are inserted into the left and right covered cutting blade holders 11 and 8, respectively.
By tightening the threaded bolts 15 and 16 screwed into the rear surfaces 11b and 12b of 12, the left and right coated cutting blade holders 11 and 12 are pulled rearward at predetermined positions and the chamfered portions 11a and 12 are tightened. The holders 11 and 12 are attached to the main body 6 by the wedge action generated between the holders 12a and the slopes 7a and 8a.
It seems to be fixed by pressing it against the bottom plate. 1
Numerals 7 and 18 are lock bolts screwed into the rear portions of the upper surfaces 11c and 12c of the left and right coated cutting blade holders 11 and 12, respectively.
The threaded bolts 15 and 16 are pressed against their threaded ends through a copper piece (copper piece) to prevent the threaded bolts from rotating.

20 and 21 are the left and right coated cutting blade holders 1
1 and 12 right and left sides 11d and 12d respectively
(That is, the side surface on the side of the core wire cutting blade 9) A long groove extending in the front-rear direction protruding from the lower part, and between each of the long grooves 20 and 21 and the protrusions 11d' and 12d' formed at the upper ends of the right and left side surfaces 11d and 12d. The rear portions of the left and right coated cutting blades 22 and 23 are inserted, respectively, and their rear ends are brought into contact with stopper pins 24 and 25 implanted in the lower rear portions of the right and left side surfaces 11d and 12d.

26 and 27 are the left and right coated cutting blades 2, respectively.
2 and 23 for fixing and holding the inner chamfers 26a' and 27a of the left and right legs 26a and 27a, respectively.
27a' to the left and right coated cutting blade holders 11 and 12.
The left and right legs 26b and 27b and the left and right legs 26b and 27b are engaged with the slopes 11e' and 12e' formed on the upper ends of the left and right side surfaces 11e and 12e (that is, the side surface opposite to the core wire cutting blade 9 side), and the right and left legs 26b and 27b and the left and
Right and left side surfaces 11 of right coated cutting blade holder 11 and 12
The left and right coated cutting blades 22.
The upper surfaces 11c and 12c of each coated cutting blade holder 11 and 12 are covered with the upper portions of the blades 23 interposed therebetween, and the blades are inserted into the horizontal portions 26c and 27c of the shape-retaining member from above and screwed into the upper surfaces 11c and 12c. The tightening action of the tightening bolts 28 and 29 creates a wedge action between the inner chamfers 26a' and 27a' and the slopes 11e' and 12e', causing the left and right coated cutting blades 22 and 23 to move away from the core line. Cutting blade 9 side (left side and
right side) and press-fixed it to the right and left side surfaces 11d and 12d.

Reference numeral 30 denotes a scale plate attached to the rear upper surface of the main body 6, and has scales engraved in 1 mm increments on the left and right sides with the center point as the reference scale "0" on the front edge inclined surface 30a.

Therefore, to position each cutting blade, first lock bolts 17 and 18 on the rear cutter assembly 2 side.
, and then unscrew the threaded bolts 15 and 16 to release the fixation of the left and right coated cutting blade holders 11 and 12. Next, by operating the push screws 10, 10 of the main body 6, the side surface on the cutting edge side of the core wire cutting blade 9 (the right side surface 9a in FIGS. 1 and 2) is aligned with the reference scale "0" of the scale plate 30 and fixed. Furthermore, in order to adjust the left and right coating stripping lengths, that is, the distances L ₁ and L ₂ between the cutting edge side surface 9a of the core wire cutting blade 9 and the left and right coating cutting blades 22 and 23, the adjustment screw bolt 13 and 14 knobs 13
Operate b/14b to remove left and right coated cutting blade holder 1.
1 and 12 to the left and right, and align the blade edge side surfaces of the left and right coated cutting blades 22 and 23 (right side surfaces 22a and 23a in FIGS. 1 and 2) with the scale plate 30, respectively.
Tighten the threaded bolts 15, 16 with the screws aligned with the predetermined scale positions, and further tighten the lock bolts 17, 18 to tighten the threaded bolts 15, 1.
6. Perform the rotation stopper.

Next, when positioning each cutting blade on the front cutter assembly 1 side, manually move the front and rear cutter assemblies 1 and 2 close to the cutting blade engagement position, and position the core wire cutting blade 9' in close contact with the cutting blade 9. At this point, fix the core wire cutting blade 9' in the same manner as in the rear cutter assembly 2, and similarly adjust each coated cutting blade 22' and 23' to a position in close contact with the adjusted coated cutting blades 23 and 22, respectively. If you fix it with the cutting blade spacing mentioned above,
L ₁ and L ₂ are set accurately.

When replacing the core wire cutting blades 9, 9', first loosen the lock bolts 17, 18, 17', 18' and screw bolts 15, 16, 15', 16', then loosen the push screws 10, 10, and replace the core wire cutting blades. 9 and 9', and then align and fix the reference scale "0" again.

In addition, when replacing each coated cutting blade 22, 23, 22', 23', simply tighten the tightening bolts 28, 29, 2.
Loosen 8' and 29' and remove the shape holding members 26, 27, 2.
If you lift up 6' and 27', the coated cutting blades 22 and 2 will be removed.
3, 22' and 23' can be easily replaced.

Incidentally, instead of the covered cutting blade tightening mechanism using the coated cutting blade holders 11 and 12 described above, it is also possible to use a covered cutting blade tightening mechanism 100-100' as shown in FIG. Since the coated cutting blade tightening mechanisms 100 and 100' have the same configuration and are symmetrical, only the right coated cutting blade tightening mechanism 100 will be described below. In addition, the coated cutting blade tightening mechanism 1
Components other than the coated cutting blade holder related to 00 and 100' have the same construction as in the previous embodiment, and therefore the same reference numerals are used.

The coating cutting blade tightening mechanism 100 includes a coating cutting blade holder 101 on the right side which is placed on the bottom plate inside the main body 6 on the front side of the right block 8 and whose rear upper part is screwed into the adjustment screw bolt 14. It is provided in connection with. That is, the coated cutting blade tightening mechanism 10
0, a coated cutting blade insertion groove 101a that is open on the core wire cutting blade 9 side is cut in the coated cutting blade holder 101, and a sloped portion 101b is provided only on the side opposite to the groove 101a on the reaction line cutting blade 9 side of the groove. Concave cutout 101c
A wedge block 102 formed on a sloped portion 102a on one side is interposed in the recessed notch 101c on the right side of the coated cutting blade 23 inserted into the groove 101A, and a wedge block 102 formed on a sloped portion 102a on one side is interposed, and a wedge block 102 is formed on the horizontal portion of the holder 101 upwardly. The wedge block 10 is secured by a push screw 103 screwed into the wedge block 10.
2 downward, both inclined surfaces 101b and 10
2a produces a wedge action to fix the coated cutting blade 23. 10
4 is a lock bolt, and 105 is a soft metal piece.

As detailed above, in the device of the present invention,
The coated cutting blade is attached to the coated cutting blade holder using a simple attachment/detachment mechanism, and the coated cutting blade holder is slid independently by a screw drive mechanism, and the core wire cutting blade is attached to the moving path of the coated cutting blade holder. Since the scale plate installed along the line is removably fixed in line with the reference scale "0", the distance between the sheathed cutting blades can be adjusted quickly and accurately by simply using a knob such as a threaded bolt. Needless to say, the sheathed cutting blade can be easily replaced by a knob operation from above, which is relatively spacious and easy to operate, so even if the sheathed cutting blade needs to be replaced frequently, processing capacity can be improved. It is possible to respond quickly without causing any deterioration. Furthermore, since neither the core wire cutting blade nor the coated cutting blade need to be specially shaped, they can be manufactured at low cost, and no tools are required when adjusting the cutting blade spacing or replacing the coated cutting blade as mentioned above. has advantages.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially cutaway plan view of the device of the present invention, FIGS. 2 and 3 are views taken along arrows X to X and Y to Y in FIG. The figure is the first
FIG. 5 is a cross-sectional view of a main part of another embodiment. In the figure, 1 and 2 are the front and rear cutter assemblies, 6 is the main body, 9 is the core wire cutting blade, 11 is the left coated cutting blade holder, 12 is the right coated cutting blade holder, 1
3 and 14 are adjustment screw bolts, 22 is a left coated cutting blade, 23 is a right coated cutting blade, and 30 is a scale plate.

Claims (1)

[Claims] 1 Core wire cutting is performed by opening and closing movements of a pair of cutter assemblies, which are equipped with a pair of opposing core wire cutting blades and a pair of coated cutting blades, each of which is arranged in parallel and opposed to each other on both sides of the cutting blades. The coating is cut on both sides of the cutting part, and the coating is stripped off on both sides of the cutting part by the action of pulling the wire toward the side opposite to the cutter assembly of movable clamps provided separately on both sides of the cutter assembly. , each of the cutter assemblies is provided with a core wire cutting blade fixing mechanism that allows the core wire cutting blade to be detachably fixed in the center of the main body formed in a box shape with an open top and both sides. In the machine, two coated cutting blade holders are slidably disposed on both sides of the core wire cutting blade in the main body, and each coated cutting blade holder is placed in a groove formed on a side portion of the core wire cutting blade. The coated cutting blade is inserted into the coated cutting blade holder, and the coated cutting blade can be tightened and fixed by a coated cutting blade tightening mechanism formed on the coated cutting blade holder, and the coated cutting blade holder is attached to each side plate of the main body. The sheathed cutting blade can be adjusted to move forward and backward toward the core wire cutting blade by a sheathed cutting blade spacing adjustment mechanism formed by screwing an adjusting screw bolt inserted toward the core wire cutting blade into the sheathed cutting blade holder. The tightening mechanism is a coated cutting blade holder by cutting a coated cutting blade insertion groove on the core wire cutting blade side and having a recessed part on the side opposite to the core wire cutting blade of the groove where only the opposite side of the groove is sloped. A wedge block having an inclined surface on one side is interposed in the recessed notch, and when the tightening bolt is tightened, a wedge action is produced by engagement of the inclined surfaces of both the holder and the wedge block. A cutting blade interval adjustment device for a coated wire cutting/coating stripping machine, characterized in that a coated cutting blade is pressed against one side of the holder groove.