JPS629813A - Cutter using cylinder with knurling threads - Google Patents

Abstract

PURPOSE:To enable the constitution of a simple but high performance and precision cutter by holding and cutting a workpiece simultaneously with a cylinder having knurling threads on the wall thereof and a driven cutter. CONSTITUTION:In the use of a cutter, space between a cover 21 and a driven cutter 2 is so decided as to suit desired cutting length. Namely, a bolt 29 is loosened to make the cover 21 movable and secured by tightening at a desired suitable position. Then, a power source is switched 'ON' to turn a rotary cutter 1 for starting a cutting process and a workpiece to be cut is moved along a slide thread 26 and machined, inserted from a feed 25 at right angles with the front 5 of the rotary cutter 1. In this way, the fatigue of a worker is lessened and it is possible to obtain a cutter of safety and high performance and precision.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is a method for cutting electrical parts by rotating a cylinder made of metal or the like with knurled grooves using a motor.

This relates to a cutter for cutting cloth, wire, thin metal plates, etc.

(Conventional technology) In recent years, the manufacturing of electronic circuit boards, etc., has been completely automated, including the replenishment of parts every time they are cut.
In addition, in cases such as mass production trial production, where the quantity is not large enough to be produced by an automatic machine, parts are often inserted into the board by hand, and in such cases.

Preparation of parts such as cutting the legs of electronic parts often relies on manual labor.In such cases, the cutting work is done using nippers, etc. while applying the object to be cut to the gauge, but my hands quickly become sore and it takes about an hour. Along with this, not only efficiency decreases but also dimensional accuracy deteriorates.

A versatile and simple device necessary for such a case has not yet been provided. (Problem to be solved by the invention) The present invention uses a cylinder with knurled grooves on the peripheral wall and a receiving blade to hold the cut object. The aim is to provide a simple, high-performance, and highly accurate cutter that cuts while gripping.

(Means and actions for solving the problem) The cutter has a cylindrical rotary blade 1 made of hard metal, ceramic, etc. with knurled grooves 6 on the peripheral wall, a receiving blade 2, and 2 rotary blades 1. It is composed of a driving shaft 3. An arbitrary number of knurling grooves 6 are provided on the peripheral wall of the rotary blade l.

The outer circular bee portion of the front surface 5 is a cutting portion l of the rotary blade that forms a sharp right angle, and the shaft 3 is inserted into the shaft hole 7 in the center, and the rotary blade 1 is made movable by screwing or the like. It is fixed to the shaft 3. The receiving blade 2 is plate-shaped, and all four sides except one side are smooth and polished, and the edges of each side are rounded.

It has a sharp right angle.

The receiving blade 2 is fixed so that it can be moved forward and backward so that an appropriate gap is provided between the rotary blade 1 and the receiving blade.
It can be changed by moving the rotary blade 1 fixed to the shaft 3, and can be changed depending on the thickness of the cut object 12.

The rotary blade 1 is rotated by the rotation of the motor transmitted through the shaft 3. When the cut object 12 is fed in from the feeding direction 16, the cut object 12 and the rotary blade 1 are separated as shown in FIG.
Due to the friction of the pitcher with the circumferential surface of the rotary blade and the engagement with the knurled groove 6, the blade moves along the upper surface of the receiving blade 2 in the moving direction 14, and is finally cut by the cutting angle 10 between the cutting portion 4 of the rotary blade 1 and the receiving blade. leading to.

(Example) Figure 3 shows the cutting part of a cutter that continuously cuts continuous materials such as two pieces of paper, a metal plate with a low NA, and taped electrical parts. This cutter is constructed by adding a rotatable press roller 15 made of an elastic material such as rubber or plastic to the shown cutter. The distance between the circumferential surface of the press roller 15 and the circumferential surface of the rotary blade 1 is determined by the thickness of the material to be cut.

If the material is thin, these two peripheral surfaces may be placed in contact with each other, or may be placed at an appropriate distance depending on the thickness of the material to be cut.

The continuous cut objects are sandwiched between the circumferential surface of the rotary blade 1 that rotates twice and the circumferential surface of the pressing roller, advance in the same direction as the feeding direction 16, and are cut 2 degrees in succession.

Figure 4 is! ! FIG. 2 is a configuration diagram of the cutter having the structure shown in FIG. 1 in actual use.

The structure and operation of the cutting portion are the same as those described in FIG.

Cover 21. from the front. Cutting device body 20. It is composed of a speed reducer 22 and a motor 23.

An insertion portion 25. is provided on the 9th surface of the cover 21L', 11). A slide groove 26 is formed, and a mounting hole 27 is formed on both sides of 9, and a positioning plate 31 is provided at the upper and lower ends of each hole.

The front surface of the cutter main body 20 has a structure in which the receiving blade 2 is fixed, and the receiving blade is mounted on a surface 24.Bolt holes are provided on both sides of the cutting device 20, and a shaft hole 30 is provided on the rear surface. ing.

The reducer 22 connects the shaft 3 to a shaft hole 30 on the rear surface of the main body.
□Fixed to the rear surface of the cutter main body 20 so as to pass through the □ and attached to the rear surface of the reducer 22.

Motor 23 is fixedly attached.

The cover 21 is fitted by fitting the four positioning plates 31 from the front of the cutting device main body 20 so as to cover the cutting device main body 20, and for installation, the hand holes 27 and the bolt holes 28 are overlapped, and the bolts 29 are inserted. Tighten and secure. The cover is 9
This has the effect of protecting the operator's hands and keeping the dimensions constant when cutting.When using the cutter of the first embodiment, first adjust the cover 21 and the receiving blade 2 depending on the desired cutting length. You have to decide the distance between.

To do this, the bolts 29 are tied down, the cover 21 is made movable, and the bolts 29 are moved to the desired location.
Tighten and secure.

Thereafter, the power is turned on, the rotary blade 1 is rotated, and cutting work is started. Hold the object to be cut perpendicular to the front surface 5 of the nine-turn blade l, and slide it from the insertion part 25 lI2.
Figure S shows a cutter of the structure shown in Figure 3, which is used to cut paper, a thin metal plate, taped electrical parts, etc. in the second embodiment. The cutter of the second embodiment is shown in FIG. 5, which shows the feeding part of the cut material necessary for actual use. It has a structure with a feeding part added.

A fixing bolt 42 is fixed to the receiving blade mounting surface 24. The rear positioning plate 40 has a rear cover plate 43.
．． An introduction portion 44 is provided, and a fixing hole 45 is bored in the folded front surface.

The fixing hole 45 has JT! The fixing metal fittings 47 shown in figure G.

5 Fixed metal fittings 47 that are rotatably inserted and fixed
consists of two main body parts 55 and a nut 59, and the two main body parts 65 are:
Knob 54. ! /J4 part 57. It is made of screw #B5B and has a bolt hole 56 passing through it. Insert the main body part 55 of the fixing fitting into each fixing hole 45, screw the nut 59 into the threaded part, and attach the fixing fitting 47 to the rear positioning plate 4.
0. Two pieces each are rotatably fixed to the front holding plate 41.

At this time, since the diameter of the body part 57 is smaller than the diameter of the fixing hole 46 and its thickness is greater than the thickness of the plate to which it is attached, it can be fixed so as to rotate freely twice.

The front holding plate 41 is provided with a front cover plate 46 having a front introduction portion 49, and a fixing hole 4 is provided on the folded front surface.
5 are opened, and a fixing metal fitting 47 is rotatably fixed to each fixing hole 45.

To assemble the feed section shown in FIG. 5, first position the rear positioning plate 40 and fix it.

Place the fixing bolt 42 into the bolt hole 56 of the fixing bracket 47 rotatably fixed to the rear positioning plate 40, turn the fixing bracket 47 using the knob 64 until it reaches the desired position, and tighten the fixing nut 60 to the desired position. Fix it in the desired position.

The front holding plate 41 can also be fixed in two positions in the same manner. In this way, the silk-making process is completed.

This device is suitable for cutting continuous items such as taped electrical parts, and before use, it is necessary to adjust the feeding part as described above depending on the size of the item to be cut, the position to be cut, etc. There is.

To do this, turn the fixing metal fittings 47 using the knobs 54 of the four fixing metal fittings, move the rear positioning plate 40° and the front pressing plate 41 to the predetermined positions, and tighten the respective fixing nuts 60 to fix them. Turn on the power, rotate the rotary blade 1/2 turn, and then pass the continuous cut material between the rear introduction part 44 and the front introduction part 46 and sandwich it between the rotary blade 1 and the holding roller 15, which rotate twice. Generally, the cut object is cut continuously. The cut pieces are sent out in two rotational directions.

(Effect of the invention) A cutting device using a cylinder provided with knurled grooves according to the invention
A knurled groove 6 is provided on the circumferential surface of the two-turn blade 1, and when the object to be cut is inserted between the rotary blade L that has been rotated nine times and the receiving blade 2, the cutting angle between the cutting portion 4 of the two-turn blade and the receiving blade 2 is created. 10, the workpiece is held and cut at the same time, which reduces the fatigue of the two workers and provides safety, high performance, and high dimensional accuracy of cutting.

By adding a cutting device to the cutter of the present invention, it is possible to continuously cut continuous objects, thin metal plates, taped electrical parts, etc. The cutter of the present invention has a simple structure that is thought to be less likely to break down, is inexpensive, and automatically cuts at the same time as it grips. Since it has both gripping and cutting effects and the cutting size can be made constant, it can be used as a cutter in various automated equipment.

[Brief explanation of drawings]

Figure 1 explains the structure of the cut part! ! ! , Fig. 2 is an enlarged A8 view for explaining the cutting action, Fig. 3 is an explanatory diagram of the structure of the cutting part of the cutter that continuously cuts continuous objects, and Fig. 4 is the configuration of the first embodiment. figure. Fig. 5 is a configuration diagram of the feeding part of the second embodiment. Fig. 6 is an explanatory diagram of the structure and usage of the fixture of the second embodiment. 1: Rotary blade 2: Receiving blade 3: Shaft 4: Rotating blade Cutting part 5: Front 6: Knurled groove 7:
Shaft hole 8: Rotation direction 9: Overlapping part lO:
Cutting angle of receiving blade 11: Cross section of rotary blade 12: Cutting object 13: Rotation direction 14: Moving direction of cutting object 15: Holding roller 16: Feeding direction of cutting object 20: Cutting device flap L
f+, 21: Cover 22 dual reducer 23: Motor 24: Receiving blade mounting surface 26: Insertion part
26: Slide groove 27: Hand hole for installation 28: Bolt hole 29: Bolt 30: Shaft hole 31: Positioning plate 40: Rear positioning plate 41: Front holding plate 42: Fixing bolt 43: Rear holding plate 44: Introduction part 4
5: Fixing hole 46: Front cover plate 47 = Fixing metal fittings (
Main body part 55 + nut 59) 49: Front introduction part 54: Knob 55: Main body part 56: Bolt hole 57: Body part 58: Thread part 59: Nut 60
: Fixed nut

Claims (1)

[Claims] 1. Consists of a rotary blade 1, a shaft 3, and a receiving blade 2. The rotary blade 1 has a cylindrical shape made of hard metal, ceramic, etc., and has a knurled groove 6 on its circumferential surface. An appropriate number of blades are provided, and the outer peripheral edge of the front surface 5 is a cutting portion 4 of a sharp right-angled rotary blade.
A shaft hole 7 is bored in the center, and the shaft 3 is inserted into the shaft hole 7, and the receiving blade 2 is fixed to the shaft 3 so as to be movable back and forth.The receiving blade 2 is made of hard metal, ceramic, etc. The rotary blade 1 has a plate shape of an appropriate thickness, and its four sides except both sides are polished smooth, and the edge of each side has a sharp right-angled receiving blade cutting angle of 10. The front face 5 and the receiving blade 2 are installed with an appropriate gap between them without touching. A cutter 2 using a cylinder with a knurled groove, and a rotating cutter made of an elastic material such as rubber or plastic. A cylinder provided with knurled grooves according to claim 1, wherein the circumferential surface of the freely cylindrical pressing roller 15 and the circumferential surface of the rotary blade 1 are in contact with each other or are installed at an appropriate interval. cutting device using