JP3518246B2 - Injection needle grinding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection needle grinding device for grinding the tip of a needle tube to form a cutting edge of an injection needle.

[0002]

2. Description of the Related Art Recently, many medical facilities use disposable products, and in particular, injection needles have problems such as infection, so that they are becoming disposable. In order to produce disposable injection needles used in large quantities, various devices for automatically grinding the cutting edge have been considered. For example, Japanese Patent Publication Sho 5
The device is disclosed in Japanese Patent Application Laid-Open Nos. 1-328878 and 54-59693. However, these injection needle grinding devices are of a type in which a grindstone is fixed and an injection needle holder (hereinafter referred to as an injection needle holder) is moved. That is, in this device, since the injection needle is brought to the grinding position of the grindstone, the injection needle holder has to be moved, and when the injection needle is held at a predetermined grinding angle, this angle Adjustment and holding had to be done by the holder. Therefore, in this type of device, it is difficult to continuously incorporate the grinding process into the line, and as a result, a large number of injection needles cannot be continuously processed and ground. Therefore, the applicants previously attached the injection needle to the tape, put this tape on the line and let it flow, and at the time of grinding, hold the injection needle together with the tape in a predetermined position with a clamp,
The grinding angle was applied for and registered as a device that can adjust the angle of the grindstone on which the grindstone is mounted and the vertical and horizontal movements (Patent No. 1367949). With this device,
It has become possible to grind a large number of injection needles.

However, in this device, when the grinding angle of the injection needle is changed, the position of the wheel head must be changed, and the change and adjustment of the position and angle of the wheel head at that time are very troublesome. And it required skill. This device has a mechanism for moving the wheel head vertically or horizontally in order to change the position of the wheel head, and a mechanism for changing the grinding angle of the wheel with respect to the injection needle. The grinding angle was determined by finely adjusting the mechanism.

[0004]

As described above, in order to change the grinding angle of the injection needle with the conventional device, the cutting edge of the injection needle held (fixed) at a predetermined position is set with the grindstone. It is necessary to change the position and the angle of the grindstone in contact with the needle.
As shown in (a) to (c) of FIG. 5, since the blade angle of the injection needle is determined by the position of the circumference of the grindstone with which the injection needle contacts, it is necessary to move the grindstone to that position. However, this movement was very difficult with the conventional equipment wheel head. For example, in the case of changing the grinding angle of the injection needle with the conventional device, first, turning is performed while adjusting the contact angle between the grindstone and the injection needle by the grindstone angle adjuster. The turning is stopped when the injection needle comes into contact with a predetermined position on the circumference of the grindstone.
Here, the contact angle between the grindstone and the injection needle is the grinding angle, but this grinding angle can be adjusted relatively easily as desired. However, although the grinding angle is as desired, the contact point (grinding point) between the grindstone and the injection needle is not at the position to be set. In order to correct the distance when the grindstone wears, it is desirable to provide the grindstone base with a function that allows sliding movement.At that time, the point where a straight line that passes through the grindstone center and is parallel to this sliding movement intersects the outer circumference of the grindstone is the grinding point. It is preferable to match them. Then, in order to correct the wear of the grindstone, when you slide the grindstone,
The grinding point can be located on the outer circumference of the grindstone so that the same grinding angle can always be maintained. In the conventional device, when changing the grinding angle in this way, it is difficult to bring the grinding point to an appropriate position, and if the adjustment is not done properly, the grinding angle will gradually change as the grindstone wears. There was a problem. Alternatively, even if the grinding angle can be set as desired, there is a problem that the length of the needle cannot be ground because it does not match the length of the injection needle to be machined, or conversely, the length of the needle is shortened due to excessive grinding. That is, the grinding angle can be freely controlled, but the length of the injection needle is not controlled.

On the contrary, when the length is adjusted to the length of the injection needle, the grinding angle is not controlled. Therefore, conventionally, a skilled operator must turn the grindstone base and then move it vertically or horizontally to change the position of the grindstone and the contact angle between the grindstone and the injection needle. For example, when changing the grinding angle of the injection needle, first, the grindstone base is turned to the desired grinding angle. In the conventional device, since this turning does not have a specific reference, there is a problem that the tip of the injection needle is separated from the whetstone by turning the whetstone, and conversely is grinded more than necessary. It was for that reason,
In the conventional device, the whetstone head must be moved vertically until the tip of the injection needle contacts the periphery of the whetstone while maintaining the grinding angle of the whetstone and the whetstone. At this time, check again whether the grinding angle is the same as the one that was adjusted first. If there is a slight deviation, the grinding angle between the injection needle and the grindstone must be finely adjusted by turning or horizontally moving the grindstone base as described above.

The above is the case where the grinding angle of the injection needle is changed, but adjustment is also necessary when correcting the wear of the grindstone. For example, when the injection needle is ground with a grindstone for a long period of time, the grindstone is gradually worn away, and the injection needle may not be sufficiently ground with the grindstone. In order to prevent insufficient grinding of the injection needle due to abrasion of the whetstone, a device that measures the distance between the injection needle and the whetstone with an air sensor, etc. and automatically corrects the position of the injection needle holder when the distance becomes a predetermined value or more Invented. However, this correction mechanism (due to grinding wheel wear) cannot be said to be sufficient, and although the distance between the injection needle and the grindstone is automatically corrected by the air sensor, the grinding point changes on the grindstone circumference due to the correction, It had a drawback that the grinding angle of the injection needle was slightly different. Then, it was very troublesome to adjust the grinding angle as described above.

As described above, there are still many unsolved problems in the automatic grinding machine for injection needles, and in particular, jigs (injection needles) are used to change the grinding angle of the injection needle and to correct it by abrasion of the whetstone. You have to adjust the position of the holder) and the grindstone,
The operation was very troublesome and required skill. Therefore, an object of the present invention is to easily and accurately carry out a change of a grinding angle of an injection needle, or a correction of a grinding distance (which means a distance between an injection needle and a grindstone) caused by abrasion of a grindstone, and the like. An object of the present invention is to provide an injection needle grinding device that does not require troublesome adjustment of a grinding point, which is necessary (in the conventional device) for changing and correcting.

[0008]

Means for Solving the Problems In the present invention, an injection needle holder that holds an injection needle immovably, and an injection needle that has a circular whetstone that contacts the injection needle and grinds the injection needle while rotating a grinding apparatus, when the contact point between the needle tip and the grinding wheel circumference on the grinding point, and means that the grinding wheel around the grinding point rolls, also, before
The straight line connecting the grinding point and the wheel center point is the wheel center line.
Then, if the whetstone moves along the whetstone centerline,
In addition, the wheel head mounted with the wheel is moved parallel to the wheel center line.
And a grinding point under the grindstone head.
There is a track stand that turns around the
The way is composed of two parts, a fixed side and a movable side.
The movable side way is rotated by the sliding of the person.
And the peripheral part of the movable side way is centered on the grinding point.
The above problem has been solved by an injection needle grinding device characterized by having a shape along a virtual circumference . That is, the feature of the present invention is that other variable elements (for example, the length of the injection needle or the grinding point at which the grindstone and the needle contact each other: the grinding wheel circumference in FIG. Specific means (device) for easily and accurately changing the grinding angle of the injection needle without changing the position, etc. )
Is the idea.

Therefore, the injection needle grinding apparatus of the present invention is provided with a means for rolling the grindstone around a contact point between the circular grindstone and the tip of the injection needle, that is, a grinding point. Here, the rolling of the grindstone is a movement obtained by fixing a grinding point, which is one point on the circumference of the grindstone, and rolling the grindstone around the fixed grinding point. FIG. 4 shows the outline of the movement. For the reasons described later, the grinding angle of the injection needle can be arbitrarily adjusted by rolling the grindstone. Furthermore, by providing the means for moving the grindstone along the centerline of the grindstone in the injection needle grinding apparatus of the present invention, the grinding distance can be corrected. Also, the whetstone stand
Underneath, there is a rail that turns around the grinding point.
Install the slide movement and gauge parallel to the wheel center line of the wheel head.
Enabled to link the turning movements of the dojo. Furthermore, before
The track rail is divided into two parts, the fixed side and the movable side, and it is movable
The peripheral part of the side track and the (
At least a part of the sliding part
The shape should follow the virtual circumference around the center
Allows you to easily turn only the movable side way around the grinding point
Can be made .

[0010]

DETAILED DESCRIPTION OF THE INVENTION Various embodiments of the present invention will be briefly described below. The injection needle grinding apparatus of the present invention roughly comprises an injection needle holder, a circular grindstone and a grindstone base for holding the grindstone, rolling means for rolling the grindstone around a grinding point, and the like. The injection needle holder is a clamp that holds the injection needle so that it does not move at least during grinding, and is composed of two members. Further, the injection needle holder has a position adjusting means capable of moving the end portion of the injection needle in the axial direction so that it can hold injection needles having different lengths. The whetstone can grind and polish the tip of the injection needle by bringing the tip of the injection needle into contact with the peripheral edge of the whetstone and rotating at high speed. The rolling means is a rotating device capable of rotating the grindstone by rotating itself around the grinding point and rolling the grindstone around the grinding point. Hereinafter, this rotating device will be referred to as a rail for convenience.

Further, in this injection needle grinding apparatus, when the straight line connecting the grinding point and the grindstone center point (the center of rotation of the grindstone) is the grindstone centerline, the grindstone has means for moving along the grindstone centerline. Things are desirable. This is because the moving means can correct the grinding distance when the grindstone wears without changing other variable elements such as the grinding angle and the grinding point (at the position on the grindstone circumference). . That is, the point is to make the center line of the grindstone parallel to the moving direction of the moving means of the grindstone. As a method for that purpose, it is conceivable to provide a moving means on the grindstone base and move the grindstone base parallel to the center line of the grindstone. here,
The whetstone base is a slide guide having a slide mechanism,
In particular, a slide guide having two members, a fixed side and a movable side, is convenient because the position of the grindstone can be easily moved on the fixed side slide guide. The movable slide guide is moved by a feed motor, a feed screw, etc. provided on the fixed slide guide.

[0012] If a raceway which swivels around the grinding point is provided below the grindstone, the sliding movement parallel to the grindstone center line of the grindstone and the swivel movement of the raceway can be linked. For example, the movable side raceway and the fixed side slide guide are connected by means of bolts or the like to connect and fix the whetstone stand and the wayway. Then, for grindstone wear, the movable side slide guide is slid toward the injection needle to correct the grinding distance, and the orbital base is swiveled to roll the grindstone around the grinding point. The grinding angle can be changed. That is, by connecting the whetstone base and the raceway, the turning of the raceway and the sliding movement of the whetstone can be performed independently, respectively.
Furthermore, both movements can be linked and performed without being affected by each.

As shown in FIGS. 2 (a) and 2 (b), the contact angle between the tip of the injection needle and the grindstone can be changed by turning the grindstone or the track base 6 provided with the grindstone base. At this time, the turning angle (turning around the grinding point) of the track is closely related to the grinding angle of the injection needle, which is an important feature in adjusting the grinding angle of the injection needle grinding device of the present invention. The details will be described below. In FIG. 3, the grinding point is 8 and the center point of the grindstone is 9. Below, the grinding point 8 and the center point 9 of the grindstone
The straight line passing through and is the grindstone centerline A. The tip of the injection needle 2 is in contact with the grindstone 4 at a contact point 8 (grinding point).
Draw a tangent line B to pass through. At this time, the angle α formed by the tangent line B and the injection needle 2 is an approximate grinding angle of the injection needle (although strictly speaking, since the diameter of the grindstone is much larger than the size of the injection needle, the grindstone Curvature: R can be ignored,
There is no problem in practice).

Next, a straight line C passing through the contact point 8 and perpendicular to the injection needle 2 is drawn. At this time, assuming that the angle β is formed by the straight line A and the straight line C, α and β are the same for the following reason. That is, since the straight line B is a tangent line, the angle between the straight line A and the straight line B is 90 °, and the angle between the straight line C and the injection needle 2 is 90 ° according to the set conditions. And straight line B
Since the angle γ formed by and the straight line C overlaps, α = β. Thus, the grinding angle α is equal to the angle β formed by the grindstone center line and the straight line C perpendicular to the injection needle. That is, FIG.
As can be seen from the above, the grinding angle α can be adjusted by the turning angle β of the rail that rotates around the grinding point A. In this way, the grindstone rolls around the grinding point by the turning of the rail, and the grinding angle of the injection needle is changed by the rolling of the grindstone. That is, the grinding angle of the injection needle is changed by changing the turning angle of the rail, and conversely, when it is desired to change the grinding angle, the turning angle of the rail can be changed. For this reason, it is preferable to provide the raceway with angle adjusting means for adjusting the turning angle of the raceway.

In order to easily adjust the angle of the way, it is preferable to divide the way into two parts, a fixed side and a movable side. This is because the fixed-side track can be used as a pedestal of the injection needle grinding device, and the track can be easily swiveled on the pedestal. Furthermore, at least a part of the peripheral portion of the movable-side track and the sliding portion of the fixed-side track (in contact with the peripheral part) has a shape along a virtual circumference centered on the grinding point. By sliding the peripheral part of the movable-side way on the sliding part of the fixed-side way, only the movable-side way can be easily turned around the grinding point. Can be rolled around. In addition, it is preferable to provide the raceway with angle adjusting means having the following configurations. That is, the adjusting means includes a turning drive means for turning the orbital base, a position holding means for stopping the orbital base and holding the orbital base at that position, and an angle indicating means for indicating the turning angle of the drive base. In particular, the movable side way is provided with a turning angle indicator and a position holder, and the fixed side way is provided with a moving groove and an angle scale along the groove. If the turning angle indicator and the position holding tool can be moved along it, the movable side way can be turned while reading the turning angle on the scale, and the position can be held at a desired angle, which is very convenient. is there.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an injection needle grinding device of the present invention will be described below with reference to the drawings. Except for the features of the present invention described above, the entire needle grinding device for injection needles has the patent No. 13679.
It is almost the same as that described in No. 49, and almost all the apparatus described therein is used as it is. For example,
The grinding work of the injection needle is divided into multiple steps and arranged on the circumference of the rotary table. When the rotary table makes one rotation, the entire grinding process is completed, and the finished grinding product is wound up automatically from the needle tube arrangement. By doing so, the tip of the needle tube is exposed, the axis of the needle tube is aligned in the width direction, and a predetermined number of tapes are intermittently applied to the outer circumference of the rotary table.
Since such technologies are used as they are, in this specification,
A description thereof will be omitted. As described above, the feature of the present invention resides in a mechanism for easily changing the grinding angle and correcting the grinding distance when the grindstone is worn without changing other variable elements. Therefore, in the present specification, the configuration and operation will be described focusing on the above characteristics.

As shown in FIG. 1, an injection needle grinding apparatus 1 is roughly connected to an injection needle 2, an injection needle holder 3 for holding the injection needle 2, a circular grindstone 4, a grindstone base 5 for holding the grindstone 4, and a grindstone base. Rail base 6 for rolling the grinding wheel around the grinding point
Consists of. The injection needle holder 3 is a clamp composed of two holding members, and it is possible to hold the injection needle 2 at the time of grinding and loosen the holder 3 at the time of the next step to detach the injection needle. . Further, the injection needle holder 3 is provided with a rotating mechanism, and by this rotating mechanism, the injection needle can be rotated by a specified angle around its axis to shift the grinding portion and grind both side surfaces (side bevels). . The end of the injection needle can be moved up and down in the axial direction by setting up the position adjusting means 22 of the raised bottom called a shelf plate below the injection needle 2. The vertical position can be adjusted by the thickness of the shelf plate 22.

The grindstone 4 is mounted on a movable side slide guide 5a, which is one of the grindstone bases.
It is rotated at high speed around the center point 9 of the grindstone by the grindstone rotating motor 7 mounted on the. Then, the tip 2a of the injection needle comes into contact with the peripheral edge 4b of the grindstone rotating at a high speed, and the tip 2a of the injection needle is ground to a desired angle. The main grinding surface (main bevel) grinding process is divided into three stages: rough cutting, medium cutting, and finishing, and the type of grindstone used in each process also differs. Further, as described above, the grinding is performed not only on the main grinding surface (main bevel), but also by rotating the injection needle by a specified angle by the rotation mechanism provided on the injection needle holder, so that both sides (side bevel) of the injection needle tip are rotated. Can also be ground.

The tip portion 2a of the injection needle and the peripheral edge 4b of the grindstone.
The contact point with (on the circumference) is the grinding point 8, and the straight line connecting the grinding wheel center point 9 and the grinding point is the grinding wheel center line A. The movable slide guide 5a is attached to the fixed slide guide 5b so that the movable slide guide 5a can slide in parallel to the grindstone center line A. Thereby, when the grindstone is worn, the grindstone 4 can be moved to the injection needle 2 side along the grindstone center line A. As a result, it is possible to correct the deviation of the grinding distance due to the abrasion of the grindstone without changing the tip position of the injection needle or the grinding angle. Further, the distance between the grindstone and the tip of the injection needle is constantly measured by the air sensor 13 provided near the grinding point. The measured value is sent to the control unit, and the grinding distance is adjusted.

As shown in FIG. 1, the fixed slide guide 5b contains a longitudinal feed motor 10 and a feed screw 11 connected thereto. The movable side slide guide 5a is provided with a screw connecting portion 1 for sliding the slide guide 5a back and forth in cooperation with the feed screw 11.
Two are provided. In addition, fixed side slide guide 5b
Is linked and fixed to a movable side way 6a, which is one of the ways 6, in order to link the sliding mechanism of the whetstone along the whetstone center line A and the rolling mechanism around the grinding point. As described above in the “Embodiment of the Invention”,
Is composed of two parts, that is, a movable side trackway 6a and a fixed side trackway 6b, and the fixed side trackway 6b also functions as a pedestal that supports the entire injection needle grinding device 1. Further, as shown in FIG. 1, there is a curved portion having the same curvature above the fixed-side way rail 6b and below the movable-side rail way 6a. The fixed side raceway 6b and the movable side raceway 6a are in contact with each other at the peripheral edge portion 14 and the curved portion of the fixed side raceway 15 as the sliding portion 15, and the movable side raceway 6a can be swung by sliding. .

The track base 6 is capable of turning around the imaginary circle around the grinding point 8 .
As a method of manufacturing a way that turns around the grinding point, it is possible to design a way that turns so that the grinding point becomes the center, or conversely, the turning center of the way is the grinding point. As such, a whetstone or an injection needle holder may be attached according to the point.

Further, the injection needle grinding apparatus of this embodiment is provided with an angle adjusting means for rotating the movable-side orbital base at an arbitrary angle, maintaining the position, and further indicating the rotated angle. . The angle adjusting means includes a turning angle adjusting screw 16 as a turning driving means for starting turning of the movable side way and turning it by an arbitrary angle, a turning auxiliary tool 17 for transmitting the turning angle adjusting screw 16 to the movable side way, and turning. A position holding tool 18 as a position holding means for holding the track way at a predetermined position, an angle indicator 19 as a turning angle indicating means for indicating a turning angle at that time, an angle scale 20, and the like. The turning angle adjusting screw 16 is built in the fixed side wayway 6b, and the turning aid 17 attached to the movable side wayway 6a and extended into the fixed side wayway is pushed by the screw 16 to move the movable side wayway 6a. Can be turned by a predetermined angle. Position holder 1 provided at the end of the movable-side track 6a
8 and the turning angle indicator 19 are passed through an arcuate movement groove 21 (along an imaginary circle centered on the grinding point) provided on the fixed-side bearing base 6b, and the movable-side bearing base 6a is fixed. When turning with respect to the side track 6b, the position holder 18 and the turning angle indicator 19 move along the moving groove 21 in conjunction with each other. Then, when the turning angle indicator 19 turns to a desired angle on the angle scale 20 engraved beside the moving groove 21, the position holder 18 is tightened to hold the movable side track 6a at that position.

Next, how to correct the grinding point and change the grinding angle when the grindstone is worn will be described below with this injection needle grinding device. First, the treatment when the whetstone 4 is worn away and the injection needle tip 2a is separated from the whetstone 4 and the injection needle 2 cannot be ground will be described. In this case, the front-rear feed motor 1 mounted on the rear end of the fixed slide guide 5b
0 is driven to move the feed screw 11 and slide the movable slide guide 5a toward the injection needle 2 side. Since the movable slide guide 5a moves in parallel to the grindstone center line A and the grindstone 4 moves along the grindstone center line A, the grinding distance can be corrected without changing the grinding point or grinding angle of the injection needle. . In this example, the air sensor 1 is provided near the grinding point 8.
Since 3 is provided, when the distance between the grindstone 4 and the tip 2a of the injection needle exceeds a predetermined value, the forward / backward feed motor 10 is driven by a command from the control unit, and the grinding distance is automatically corrected. .

Next, the case of changing the grinding angle will be described. When changing the grinding angle, the turning angle adjusting screw 16 is turned to move the screw in the axial direction. Since the screw tip portion 16a is connected to the turning auxiliary tool 17 provided on the movable side way, the movable side way 6a starts turning as the screw moves. The turning angle indicator 19 also moves along the moving groove 21 in conjunction with the turning of the movable side way 5a, and the turning angle at that time is the turning angle indicator 19 and the angle scale 20.
Can be confirmed by When the movable-side track 5a turns and reaches a predetermined angle, the rotation of the adjusting screw 16 is stopped, and the position holder 18 is tightened with respect to the fixed-side track 6b to hold the position. As described above, the way 6 is the grinding point 8
Since the grindstone 4 rolls around the grinding point, the grinding angle can be changed without changing other variable elements, and the needle is ground while holding the angle. be able to.

Next, the case of grinding injection needles having different lengths will be described. To grind needles of different lengths without changing other elements (grinding angle, etc.), loosen the needle holder 3 and hang the shelf 22 on the proximal end of the needles. The axial distance between the grindstone and the injection needle can be changed.

[0026]

When the grinding angle of the injection needle is changed, by using the injection needle grinding device of the present invention, the variable elements such as the length of the injection needle and the grinding point can be changed (independently). The position of the grindstone can be adjusted. Further, even when the grindstone is worn, the grinding distance can be corrected independently. Moreover, adjustments necessary for changing the grinding angle and correcting the grinding distance are easy and accurate. Therefore, it is possible to operate and adjust the needle grinding device without relying on the experience and technology required in the conventional device.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of an injection needle grinding device of the present invention.

FIG. 2 is a diagram showing that a grinding angle can be changed by turning a rail.

FIG. 3 is a diagram showing a relationship between a turning angle of a rail and a grinding angle of an injection needle.

FIG. 4 is a diagram showing a state in which a grindstone is rolled around a grinding point.

FIG. 5 is a diagram showing a difference in grinding angle of an injection needle depending on grinding points on the circumference of a grindstone.

[Explanation of symbols]

1. Injection needle grinding machine 2. Needle 2a. Injection needle tip 3. Injection needle holder 4. Grindstone 4b. Whetstone periphery 5. Whetstone stand 5a. Movable slide guide 5b. Fixed side slide guide 6. Rail way 6a. Movable side way 6b. Fixed side way 7. Grindstone rotation motor 8. Grinding point 9. Wheel center point 10. Cross feed motor 11. Lead screw 12. Screw connection 13. Air sensor 14. Peripheral part 15. Sliding part 16. Swivel angle adjustment screw 17. Turning aid 18. Position holder 19. Turning angle indicator 20. Angle scale 21. Moving groove 22. Position adjustment means (shelf) A. Wheel center line α. Grinding angle β. Turning angle (of the way)

Claims (10)

(57) [Claims] 1. An injection needle grinding device comprising: an injection needle holder for holding an injection needle so that it does not move; and a circular grindstone for contacting the injection needle and grinding the injection needle while rotating.
When the grinding point is the contact point between the tip of the injection needle and the circumference of the grinding wheel, the grinding wheel has means for rolling around this grinding point, and the grinding point and the grinding wheel center point are directly connected.
When the line is the center line of the grindstone, the grindstone
While moving, the whetstone stand equipped with the whetstone is in the whetstone
It has a means to move parallel to the core wire,
Is equipped with a way that turns around the grinding point.
In addition, whether the above-mentioned way is two parts of fixed side and movable side
The movable side way is turned by the sliding of the two.
The peripheral point of the movable side way is the grinding point.
It is characterized by having a shape along a virtual circumference centered on
Needle grinding apparatus. 2. The moving means of the whetstone head has a slide mechanism, and the slide mechanism has a fixed side and a movable side.
The needle grinding device according to claim 1, wherein the device is a slide guide consisting of two parts. Wherein said movable slide guide claims moved by feed motor provided on the fixed side slide guide
Item 2. An injection needle grinding device according to Item 2 . By wherein changes of said track rail of the turning angle, any one of claims 1 to 3 for changing the grinding angle of the injection needle
An injection needle grinding device according to item 1. 5. serial angle adjusting means for adjusting the pivot angle of the track rail to any one of claims 1 to 4 provided on the track rail
Injector needle grinding machine. 6. The angle adjusting means, claim having a swing drive means allowed to turn the track rail, a position holding means for holding in position to stop the track rail, and an angle indication means for indicating the turning angle of the track rail 5. An injection needle grinding device according to item 5 . 7. A movable-side way is provided with a turning angle indicator and a position holder, and a fixed groove is provided with a moving groove and an angle scale along the groove. When the movable-side way is turned, The injection needle grinding device according to claim 5 or 6, wherein the turning angle indicator and the position holder are moved along the movement groove. 8. claims and wherein the wheel head and the track rail are connected
The injection needle grinding device according to any one of 1 to 7 . 9. The injection needle grinding device according to claim 1, wherein the movable side way and the fixed side slide guide are connected to each other . 10. The needle holder has position adjusting means for adjusting the end of the needle according to the length of the needle .
9. The needle grinding device according to any one of 9 above .