JPH071304A - Scissors splitting machine - Google Patents

Abstract

PURPOSE:To efficiently perform splitting work to scissors even if the worker is inexperienced. CONSTITUTION:A scissors clamping device 21, which fixes a scissors blade member, is attached to a guided-supporting body 17 in such a manner that the device 21 can move downward, against the energizing force of a spring 37, while the quided-supporting body 17 is guided by a fixed, circular guide rail 16 having a constant curvature. On the other hand, a grinding wheel 6, which abuts on the back surface of the scissors blade member fixed to the clamping device 21 when the clamping device 21 is operated to make downward deflection, is installed in this scissors splitting machine in such a way that the grinding wheel 6 can rotate at a fixed position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scissors backing machine used for carrying out the backing processing of scissors blades.

[0002]

2. Description of the Related Art When scissors become less sharp, it is necessary to recreate a sharp cutting edge by polishing. Prior to this final polishing, the scissors blade member w as shown in FIG.
Therefore, it is necessary to form the back clearance b at an appropriate position.

[0003] In the actual situation, this back lining process is conventionally performed exclusively by a skilled worker using a grindstone that is driven to rotate.

[0004]

The above-mentioned manual processing is inefficient and has the disadvantage that only a skilled person can perform good processing.

It is an object of the present invention to provide a scissors backing machine which enables efficient backing processing of scissors with less experience.

[0006]

In order to achieve the above object, the scissors-backing machine according to the present invention, as described in claim 1, supports the scissors clamping device for fixing the scissors blade member. It is mounted so that it can be displaced downward against the urging force of a spring or the like, and the guided support is guided by a fixed guide rail that has an arc shape with a constant curvature. A grindstone, to which the back surface of the scissors blade member fixed to the clamp device by the displacement operation is brought into contact, is provided so as to be rotatable at a fixed position.

In the present invention, the scissor clamp device to which the scissor blade member is fixed is downwardly displaced and simultaneously reciprocally displaced in the direction along the fixed guide rail by a simple manual operation of the operator. As a result, the scissors blade member is brought into contact with the grindstone with an appropriate force, and the back surface thereof is ground into an arc shape along the fixed guide rail to form a desired backing portion.

In this case, as described in claim 2, the scissors clamping device is provided with the supporting means on each side in the width direction, and the clamping means is displaced on each supporting means in the same direction on the straight line in the width direction. It is recommended that it be operably mounted. With this configuration, the clamp means can fix the scissors blade member without any trouble regardless of the change in size of the scissors blade member.

Further, according to the present invention, as described in claim 3, the movable support base is swung about the coaxial support against the urging force of the spring or the like through the guided support through the horizontal axis in the predetermined direction. In addition to being operably mounted, it is preferable that a scissor clamp device be mounted on the movable support so as to be rotatable around this axis via a horizontal shaft in the width direction. By doing so, the movable support does not allow the scissor clamp device to move up and down against the biasing force of the spring or the like, or the turning operation of the scissor clamp device checks the grinding state of the scissors blade member during grinding. Make it easy.

According to a fourth aspect of the present invention, a horizontal guide shaft is fixed to the scissors clamp device, and a pair of slide bodies which are guided to appropriate positions in the longitudinal direction and the circumferential direction of the horizontal guide shaft are fitted on the horizontal guide shaft. In addition to this, it is preferable to fix a reference rod to which the blade edge of the scissors blade member to be clamped is brought into contact with each slide body. According to this, the pair of sliding bodies are set at appropriate positions in the longitudinal direction of the horizontal guide shaft in accordance with the size of the scissor blade member fixed to the scissor clamp device, and, if necessary, in the coaxial circumferential direction. It is oscillated and displaced, and the reference rod of the sliding body after being oscillated to an appropriate position is brought into contact with the cutting edge of the scissors blade member by the operator to specify the position to be clamped by the same member. Becomes

Further, as described in claim 5, at least one of the clamping means is provided with a spindle portion, and the spindle portion is supported by a supporting means which is a friction clamp fixing device, and the friction clamp fixing device is fixed vertically. It is preferable that tilt displacement can be performed along the surface. According to this, it is possible for the friction clamp fixing device to fix the spindle portion at an arbitrary position around the center line thereof, which is combined with the fact that the friction clamp fixing device can be operated for tilt displacement. The relative arrangement of the member and the grindstone can be quickly adjusted to the optimum state.

According to a sixth aspect of the present invention, the one clamp means supported by the friction clamp fixing device has a screw fixing portion provided at a tip end for clamping and fixing the scissors blade member and a horizontal portion on the spindle portion. It is preferable that the contact plate is fixed so as to be swingable and displaceable, and the contact plate is brought into contact with the peripheral portion of the finger insertion portion of the scissors blade member. In this way, the screw fixing part of one of the clamping means sandwiches and fixes one position of the scissors blade member, and the backing plate restricts the horizontal movement of the finger insertion part, and the scissors blade member is fixed at a specific position. It will be in the state of being.

Further, in order to facilitate replacement and mounting of the grindstone, as described in claim 7, while mounting the grindstone on the base,
It is preferable that the fixed guide rail and the portion guided by the fixed guide rail are provided on the upper surface side of the work table mounted on the upper part of the base so as to be retractable so that the grindstone is exposed when the work table is retracted.

Further, as described in claim 8, a dressing device for correcting the shape of the peripheral surface of the grindstone is provided,
In this dressing device, it is preferable that the dressing blade mechanism can be reciprocally displaced along a dressing guide rail having a constant curvature. According to this, the peripheral surface of the dressed grindstone forms the end shape of the backing portion of the scissors blade member in a tapered shape, which increases the contact surface between the scissors blade members and improves the function of the scissors. Eggplant

[0015]

1 to 6 show a scissors-backing machine according to an embodiment of the present invention, which will be described below with reference to these drawings.

Reference numeral 1 denotes a box-shaped base on which a rotary shaft 3 is horizontally and rotatably disposed via a bearing base 2 and two bearings 2a, 2a, and at one end of the rotary shaft 3. Is a locking step 3a, a pair of ring plates 4, 4 and a nut 5
A circular grindstone 6 is replaceably mounted via the pulley 7, a pulley 7 is fixed to the other end, and a motor 8 is fixed to the lower part. The pulley 9 fixed to the output shaft of the motor 8 and the pulley 7
A belt 10 is hung between and, and below the grindstone 6, a liquid receiving container 11 having an open upper surface is fixed. At this time, 11a is a drain port provided in the receiving container 11, and 1
1b is a liquid scattering prevention wall formed by extending the wall surface of the receiving container 11 upward.

Reference numeral 12 denotes a work table arranged so as to cover the upper surface of the base 1. Grooves 12a and standing wall portions 12b are provided at necessary peripheral portions, and an arcuate bulging portion 12c is provided at a central portion in the front-rear direction. To form an area where the rotating shaft 3 and the like are arranged, and the grindstone 6 is formed at the rear end of the bulging portion 12c.
In order to form a through hole 12d for exposing the upper part of the through hole in a penetrating manner and to be able to retreat from the upper surface of the base 1, a hinge 13 is provided at one end in the front-rear direction f1 in the illustrated example, and this hinge 13 is interposed. And can be locked at a fixed rocking angle position by a locking means (not shown).

Reference numeral 14 is a grindstone cover which is a fixed cover 14.
a and a movable cover 14b are provided. Then, the fixed cover 14a has the standing wall portions v1 and v2 fixed along the left and right edges of the through hole 12d, and the standing wall portions v1 and v2.
The movable cover 14b has side walls v3 and v4 that are substantially fan-shaped, and the outer edges of the side walls v3 and v4. It is composed of a coupling wall portion s3. The tip 15 is a fastening member for fastening the movable cover 14b to the fixed cover 14a so that the movable cover 14b can be oscillated, and has both a fixing action and a oscillating center action.

Reference numeral 16 denotes a horizontal direction f on the upper surface of the work table 12.
(3) An arc-shaped fixed guide rail fixed to the central portion, which is bent with a constant curvature specified in relation to the arc of the cutting edge e of the scissors blade member w.

Reference numeral 17 denotes a guided support guided by the fixed guide rail 16, which is a saddle 17a externally fitted so as to surround the side surface and the upper surface of the fixed guide rail 16, and a base member fixed to the saddle 17a. 17b and this base member 1
Arm members 17c fixed to both ends of 7b upright.
It consists of 7c. Reference numeral 18 is a bearing member fixed to each arm member 17c.

Reference numeral 19 denotes a movable support, which is formed by bending a plate member to form a horizontal plane portion 19a, side surface portions 19b, 19b, a front standing surface portion 19c and a rear standing surface portion 19d. A through hole 19e is provided to avoid interference with other portions.

This movable support base 19 is supported by guide shafts 17 through support shafts 20 and 20 which are horizontal in a required direction.
The arm members 17c, 17c and the side surface portions 19b, 19 are mounted so as to be swingable about 0, 20.
b and the support shafts 20 in the form of bolts are connected to each other.

Reference numeral 21 is a scissor clamp device, which is specifically constructed as follows. That is, the frame member 22 is formed by bending the plate member and including the width direction surface portion 22a and the bulging portions 22b and 22c protruding forward from the lower ends of both ends thereof, and the upper portion of each bulging portion 22b and 22c. The support means 23, 24 are provided on each of them, and the clamp means 2 is provided on each of them.
5, 26 are supported so that they can freely move in and out in the width direction.

The clamp means 25 on one side holds the holder 2 for pushing the tip of the scissors blade member w downward at the tip.
5a is provided so that the vertical position can be changed by an adjusting bolt 25b, and an elongated hole 25c is provided midway in the longitudinal direction of the main body. In addition, the supporting means 23 of the supporting member 23 a fixed to the overhanging portion 22 b and the supporting member 2 a
3a comprises a tightening operation bolt 23b screwed into the screw hole of 3a. By inserting the tightening operation bolt 23b into the elongated hole 25c and tightening the clamp means 25, the clamp means 25 is extended to the elongated hole 25c. It can be fixed at any position within the range.

The other clamp means 26 is the spindle unit 2.
6a, a screw fixing portion 26b which fixes and fixes an appropriate position of the scissors blade member w, and a contact plate means 26c which regulates the displacement of the finger insertion portion w1 of the scissors blade member w in a certain horizontal direction. It has been done. Here, the spindle portion 26a has a circular cross section, and the screw fixing portion 26b
Is a U-shaped member 26b 'fixed to the spindle portion 26a
And a tightening operation bolt 26b ″ screwed to this member, the contact plate means 26c swings a fan-shaped contact plate 26c ′ having a slot h, which is arcuate in plan view, to the spindle portion 26a. A fastening operation bolt 26c ″ is provided which is movably attached to the shaft k and is inserted into the long hole h and screwed to the spindle portion 26a. By operating the bolt 26c ″, the length range of the long hole h can be reduced. The backing plate 26c 'can be fixed at an arbitrary position inside the supporting plate 2c.
Reference numeral 4 denotes an elastic clamp body 24a which is configured to surround the spindle portion 26a in a relaxed manner, and the clamp body 2
4a is a friction clamp fixing device including a tightening operation bolt 24b for screwing the spindle portion 26a into a tightened state, and the clamp body 24a is provided via a horizontal support shaft 24c in the horizontal direction. The fastening operation bolt 24d, which is fixed to the overhanging portion 22c so as to be swingably displaceable and is engaged with the clamp body 24a, is screwed into a screw portion formed in the same body portion as the overhanging portion 22c, and the bolt 24d. The clamp body 24a is fixed to an arbitrary position around the support shaft 24c by the operation of.

The scissors clamping device 21 is provided with positioning means for easily determining the position of the scissors blade member w to be clamped by the clamping means 26. Specifically, the width direction surface portion 22a of the frame member 22 is provided. A horizontal guide shaft 28 is fixed to the guide via support pieces 27, 27, and sliding bodies 29, 29 are fitted onto the guide shaft 28 so as to be displaceable to specific positions in the axial direction and the circumferential direction. The reference rod 29a having a bent shape is extended. Reference numeral 28a is a recess provided in the horizontal guide shaft 28, and an engaging body (not shown) provided in the sliding body 29 is elastically fitted therein.

The scissor clamp device 21 is mounted on the movable support base 19 via the horizontal support shafts 30 in a fixed direction so as to be rotatable around the shafts 30, 30.
Specifically, it is done as follows.

That is, the arm members 31 and 31 are provided at both ends of the frame member 22, and the bearing members 32 and 32 are fixed to the side surface portions 19b and 19b of the movable support 19 on the one hand, and The shaft member 30 with the collar 30a is supported and the tip thereof is fixed to the arm member 31,
An operating member 33 is mounted on the outer side of the shaft member 30 so as to be displaceable in the left-right direction within a certain range, and the operating member 33 is also attached.
A locking pin 33a is planted on the inner end surface of the shaft, and the locking pin 33a is selectively inserted into one of a plurality of locking holes provided in the bearing member 32 through a hole provided in the collar 30a. With or without fitting, the scissor clamp device 21 at the regular position shown by the solid line in FIG. 5 can be arbitrarily turned to the position of an imaginary line p1 in the figure by operating the operating member 33 in the left-right direction and rotating operation. It has been done.

Further, the clamp device 21 is designed so as to be able to be displaced downward against an elastic force. For this reason, the illustrated example is as follows.

That is, the front standing surface portion 19 of the movable support base 19
Two supporting pieces 34, 34 are extended from c, and adjusting operation bolts 35, 35 are screwed into the supporting pieces 34, and the pressing members 36 having an inverted U-shaped cross section are attached to the tips of these bolts 35, 35.
On the one hand, and on the other hand a plurality of support rods 3 are attached to the guided support 17.
7a ... are raised and the springs 37 are loosely fitted to the support rods 37a.
· Through the through hole provided in the horizontal surface portion 19a, the horizontal surface portion 1
9a, the pressed member 36 is supported on the upper ends of the springs 37 ...

Reference numeral 38 is a dressing device for correcting the working portion of the grindstone 6 into a desired shape, which is fixed to the upper surface of the work table 12 with a constant curvature associated with the arc shape of the backing of the scissors. The guide rail 39, a saddle 40 guided by the rail 39, a screw shaft operating means 41 for displacing the saddle 40 in the left-right direction f3, and a dress blade mechanism 42 fixed to the saddle 40. At this time, the dress blade mechanism 42 is provided with a sliding body 42a guided by the frame member 38a and operated to move in and out in the front-rear direction f1, and the dress blade 42b is attached to the tip of this sliding body 42a.

Next, an example of use of the present embodiment constructed as described above and its operation will be described.

The operator operates the tightening operation bolts 23b, 24b, 26b ", 26c" of the scissors clamp device 21 to adjust the positions of the clamping means 25, 26 and the contact plate 26c ', and at the same time, to slide the sliding member. 29 and 29 are set at appropriate positions in the longitudinal direction of the horizontal guide shaft 28, and the reference rods 29a and 29a rotate the sliding bodies 29 and 29 in the circumferential direction of the horizontal guide shaft 28, for example, as shown by the solid line in FIG. Evacuate to an appropriate position. Then, the scissors blade member w as shown in FIG.
5, 26, and slide members 29, 2
9 is oscillated in the circumferential direction to set the reference rods 29a, 29a at the position p2 shown by the phantom line in FIG. 5, and the two reference rods 29a, 29a at this time have the blade edge e of the scissors blade member w shown in FIG. As shown in FIG. 7, the tightening operation bolts 23b, 24b, 26b ″, 26c ″ are fastened while maintaining this state. As a result, the scissors clamping device 21 is in a state in which the scissors blade member w is clamped at the proper position with respect to the grindstone 6. After that, the reference rods 29a, 29a are again retracted to the positions indicated by the solid lines in FIG. 5, while the motor 8 is brought into a rotationally activated state.

Next, the operator, for example, operates the operation members 33, 33.
An appropriate amount of operating force directed downward is applied to the movable support base 19 or the like by holding the hand, and the pressed member 36 is displaced integrally with the movable support base 19 by this, and the spring 37.・ Presses, and the movable support 1
9 is a support shaft 20 against the elasticity of the springs 37 ...
It is rocked and displaced about 20 times. The oscillating displacement of the movable support base 19 causes the scissors clamp device 21 integrally coupled via the bearing member 32, the pin 33a, and the shaft member 30 to oscillate and displace around the support shafts 20 and 20 as well. The device 21 is displaced downward. At this time, when the operating force required for the downward displacement of the scissors clamp device 21 is excessive or excessive, the adjusting operation bolts 35, 35 are operated for adjustment.

When the scissors clamp device 21 is displaced downward, the bottom surface of the scissors blade member w fixed thereto is brought into contact with the operating portion of the grindstone 6, and the back surface of the scissors blade member w receives downward operating force. Depending on the strength, it will be ground into large and small.

On the other hand, the operator applies an operating force in the left-right direction f3 to the movable support 19, etc., whereby the scissors clamp device 21 is reciprocated in the left-right direction f3 in an arc by the guiding action of the fixed guide rail 16. It will be displaced. At this time, the scissors blade member w is displaced with a curvature that matches the curvature of the blade edge e of the cutting blade. In the present embodiment, since the scissors used for barber or beauty treatment are the object, the curvature of the displacement locus thereof. The radius is approximately 800 mm.

Thus, the scissors blade member w has a required back clearance b.
However, it is necessary to confirm the processing state at appropriate intervals during this processing. In this confirmation, the scissors clamp device 21 is released by releasing the downward operation force on the operation members 33, 33 and displacing the members 33, 33 outward in the left-right direction to displace the pins 33a, 33a. Is rotated to a position indicated by an imaginary line p1 in FIG. 5 so that the back surface of the scissors blade member w faces upward. When the downward operating force is released, the scissors clamp device 21 moves the spring 37.
The scissor blade member w, which is displaced upward by the elastic force of .. and is fixed to the clamp device 21 in the normal position shown by the solid line in FIG. 5, is not in contact with the grindstone 6.

When such backing is repeatedly carried out, the grindstone 6 is gradually worn and the shape of its working portion becomes unsuitable, or its diameter decreases.

When the shape of the working portion of the grindstone 6 becomes improper, the sliding member 42a is moved to the proper position in the front-rear direction f.
After projecting to 1, the screw rod means 41 is rotated to move the saddle 40 along the dress guide rail 39. As a result, the whetstone 6 is corrected by the dressing blade 42b so that its working portion has a fixed curvature related to the curvature of the dressing guide rail 39.

When the diameter of the grindstone 6 decreases, the vertical position of the scissors clamp device 21 during grinding changes, and the operating force against the elasticity of the springs 37 ... Alternatively, the relative angle between the scissors blade member w and the grindstone 6 changes, which makes it impossible to perform grinding in the optimum state. Therefore, in such a case, the adjusting operation bolts 35 and 24d are operated, whereby the downward operation force against the elastic force of the springs 37 ... Is proper, and the clamp means 26 is supported. The inclination angle around the shaft 24c is corrected so that the relative angle between the grindstone 6 and the bevel blade member w becomes appropriate, and the grinding process in the optimum state can be performed.

When replacing the grindstone 6, the work table 12 is used.
Swing around the hinge 13 and move it around the phantom line p in FIG.
3 is moved to the position 3 and the grinding stone 6 is exposed.

In the above embodiment, the fixed guide rail 1 is used.
It is optional to provide an appropriate auxiliary guide means for assisting the guide action of 6. It is also possible to automatically operate each part of the backing machine of the present invention via the control device.

[0043]

According to the present invention constructed as described above, the vertical displacement locus of the scissors blade member with respect to the grindstone, the inclination angle along the vertical plane, and the horizontal movement locus thereof are mechanically specified. Therefore, it is possible to efficiently carry out the backing processing of scissors, which has required skill until now, with less experience.

Therefore, according to the second aspect, it is possible to fix the scissors blade member at the optimum position of the scissors clamping device regardless of the change in size of the scissors blade member.

According to the third aspect, the grinding state of the scissors blade member during grinding can be easily confirmed by the turning operation of the scissors clamp device.

According to the fourth aspect, it is possible to quickly identify the fixed position of the scissors blade member in the scissors clamp device.

According to the fifth aspect of the present invention, the scissors blade member can be fixed to the scissors clamp device in the optimum angle posture with respect to the grindstone.

According to the sixth aspect, the scissors blade member having a complicated shape can be surely fixed.

According to the seventh aspect of the invention, the grindstone can be easily replaced and mounted.

According to the eighth aspect,
It is possible to properly maintain the shape of the peripheral surface of the grindstone and process the backing part of the scissors blade member into an appropriate shape, and in particular, it is possible to make the end shape of the finger insertion part side tapered. The contact surfaces between the scissors blade members in the vicinity increase, and the function of the scissors becomes good.

[Brief description of drawings]

FIG. 1 is a plan view of a scissors back plower according to an embodiment of the present invention.

FIG. 2 is a side view showing a part of a cross section of the back plow.

FIG. 3 is a cross-sectional view illustrating a part xx of FIG. 1 with some parts omitted.

FIG. 4 is a cross-sectional view of the cross-section in the left-right direction of FIG. 1 with the upper part omitted.

5 is a sectional view taken along line x1-x1 of FIG.

FIG. 6 is a view showing a part of a scissor clamp device of the backing machine.

FIG. 7 shows a scissors blade member, (a) is a plan view seen from the rear surface, and (b) is a sectional view taken along line x2-x2.

[Explanation of symbols]

 1 Base 6 Grindstone 12 Working Table 16 Fixed Guide Rail 17 Guided Support 19 Movable Support 20 Horizontal Axis 21 Scissors Clamping Device 23 and 24 Supporting Means 26a Spindle 26b Screw Fixing 26c Abutting Plate Means 28 Horizontal Guide Axis 29 Sliding Body 29a Reference rod 30 Horizontal axis 37 Spring e Blade edge w Scissor blade member w1 Finger insertion part

Claims (8)

[Claims] 1. A scissors clamp device for fixing a scissors blade member is mounted on a guided support so as to be displaceable downward against an urging force of a spring or the like, and the guided support is a circle having a constant curvature. It is not guided by an arc-shaped fixed guide rail, while the lower surface of the scissor blade member fixed to the clamp device is brought into contact with the lower side of the clamp device by a downward displacement operation of the clamp device. A scissors back plow which is provided so that it can be rotated. 2. A scissor clamp device is provided with support means on each side in the width direction of the scissors, and the clamp means is mounted on each support means so as to be displaceable in the same direction on the straight line in the width direction. A scissors back plow according to claim 1. 3. A movable support base is mounted on a guided support body via a horizontal axis in a predetermined direction so as to be swingable around a coaxial shaft against a biasing force of a spring or the like, and the movable support base is mounted on the movable support base. The scissors backing machine according to claim 1 or 2, wherein the scissors clamping device is mounted via a horizontal shaft extending in a predetermined direction so as to be rotatable around the shaft. 4. A horizontal guide shaft is fixed to the scissors clamp device, and a pair of slide bodies guided to appropriate positions in the longitudinal direction and the circumferential direction are fitted on the horizontal guide shaft. The scissors back-placing machine according to any one of claims 1 to 3, wherein a reference rod against which a blade edge of the scissors blade member to be clamped is fixed. 5. A spindle portion is provided on at least one of the clamping means, and the spindle portion is supported by a supporting means which is a friction clamp fixing device, and the friction clamp fixing device can be tilted and displaced along a certain vertical surface. The scissors back plucking machine according to any one of claims 2 to 4, characterized in that 6. One of the clamping means supported by the friction clamp fixing device is capable of horizontally oscillating and displacing a screw fixing portion provided at a tip end side for clamping and fixing the scissors blade member and a spindle portion or the vicinity thereof. 6. The scissors back-placing machine according to claim 5, further comprising a backing plate provided on the scissors blade, the backing plate being in contact with a peripheral portion of the finger insertion portion of the scissors blade member. 7. A grindstone is mounted on a base, and a fixed guide rail and a portion guided by the fixed guide rail are provided on the upper surface side of a work table mounted on the upper part of the base so as to be retractable, and the work table is retracted and moved. The scissors back plow machine according to claim 1, wherein the whetstone is exposed in the state. 8. A dressing device for correcting the shape of the peripheral surface of a grindstone is provided, and this dressing device is capable of reciprocatingly displacing a dressing blade mechanism along a dressing guide rail having a constant curvature. The scissors back plow machine according to claim 1.