JPH0642025B2 - Device for inserting core metal into resin vine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is capable of correctly inserting a core metal into a resin temple by a mechanical operation, and is capable of easily handling various core metal insertions and is easy to operate. Not only can it achieve a great improvement in work efficiency, but it can be done easily even with special spectacle vines with a core inserted, which had to be manufactured by pasting half-divided resin vines together. The present invention relates to a device for inserting a cored bar into a resin temple, which can be manufactured with good finish.

[Prior art]

As a device for inserting a cored bar into a resin temple, for example, the one disclosed in Japanese Utility Model Publication No. 53-13398 is proposed.

As shown in FIGS. 18 to 19, this device is provided with lateral U-shaped tracks b and b which are curved on the outlet side of the passage so as to face both sides of the passage a having a quadrangular cross section, and which is provided at the bottom of the passage a. While forming a guide groove d for fitting the lower half of the cross section of the cored bar c, a large number of rollers f provided with a circumferential groove e corresponding to the upper half of the cross section of the cored bar c are provided corresponding to the length of the cored bar. The rails b and b are lined up side by side so as to be rollably fitted to the tracks b, and a guide bar d and a peripheral groove e of the roller f form a core bar introduction hole g for introducing a core bar as shown in FIG. It was something that was done. Further, in order to easily insert the cored bar c introduced into the passage a into the resin temple h, it is preferable to preheat the introduced cored bar to an appropriate temperature.
A heater (not shown) was built in the bottom portion of the passage a.

[Problems to be Solved by the Invention]

However, in such a device, there were the following various problems.

Since the groove width of the peripheral groove e provided on the roller f is set to a required width according to the width of the core bar c, the peripheral groove differs depending on the core bar inserted into the resin temple h. You have to use rollers. 20 to 21 show an example of a roller.

Since the width of the core metal is diverse, it is necessary to prepare dozens of types of rollers. Therefore, it is not possible to store and manage dozens of roller aggregates, each of which has a large number of rollers. It was very annoying. Further, in order to fit each roller constituting the roller assembly selected according to the inserted core metal into the U-shaped track, one roller must be fitted at a time, and the core metal used When replacing the rollers according to the width, it is necessary to remove the fitted rollers once and then install new rollers one by one, which requires a lot of time and effort for the replacement work of the rollers. There was a very bad problem.

Since it is necessary to heat the core metal c introduced into the passage a to a required temperature, the bottom of the passage is heated by the heater.
For this reason, each roller is thermally expanded, so that there is a problem that the roller does not smoothly roll and it is difficult to insert the core metal.

Further, the rollers that have undergone such thermal expansion have a problem that they tend to be damaged, such as cracks, during rolling, and that wear tends to occur due to pressing between the rollers during rolling. Therefore, the life of the roller is short and it is necessary to replace it at an early stage.

When inserting the cored bar into the resin temple h, it was necessary to insert the tip of the cored bar c into the entrance of the cored bar insertion hole g and push the cored bar c into the rear cored bar introduction hole g. There was a time-consuming problem.

When the conventional apparatus described above is used, for example, a special spectacle vine as shown in FIG. 9, that is, a rear end side portion of a cored bar c is formed to have a wide and thick rectangular parallelepiped bulge j, and the bulge is formed. It was virtually impossible to manufacture a spectacle temple whose outer surface was substantially flush with the outer surface of the resin temple h.
This is for the following reason.

Since the passage a was formed as a square through hole,
The spectacle temple with the cored bar inserted cannot be taken out unless the entire cored bar c is pushed out from the passage a. Now, it is assumed that the spectacle temple is not manufactured by the above apparatus and the core metal c having the bulging portion j is introduced into the passage a. Since the rear end k of the resin temple h is continuously provided at the outlet end of the passage a as shown in FIG. 22, the core bar c has a front end of the bulging portion j that is the rear end of the resin temple. It will be extruded until it comes into contact with k. However, in this state, since the bulging portion j remains in the passage a, the eyeglass temple with the cored bar inserted cannot be taken out as it is.

For this reason, in the case of manufacturing the above-mentioned special temple, as shown in FIG. 23, the resin temples m and m which are divided in half are attached by sandwiching the core metal c. I had to do it. However, this requires a lot of time and labor for the work, and the productivity is very poor. Further, since it is difficult to closely attach the connection portion n between the resin temple h formed by bonding and the bulging portion j, the connection portion is difficult. The gap between the two tended to occur, and the eyeglass vine had to be inferior to the unsightly commercial value.

It is an object of the present invention to provide a cored bar insertion device for a resin-made temple, which can solve the above problems all at once.

[Means for Solving the Problems]

A core metal insertion device (hereinafter referred to as a device) 1 for a resin temple according to the present invention is a device for inserting a core metal 6 having a hinge piece 5 at a rear end thereof into a resin temple 7. Vine 7
A cored bar receiver provided on the upper surface with a positioning part 16 which is arranged to be connected to a temple holding part 9 which holds the core and which serves as a mark for placing the cored bar 6 inserted into the resin temple 7. A base 10; a core bar 6 placed on the upper surface of the core bar receiving base 10.
The mandrel pressing members 31 that can move up and down are arranged side by side at a desired interval in the length direction of the mandrel so as to face the front side of the hinge piece 5. At the lower end position, the lower pressing portion 51 presses the core metal 6, and at the upper end position, the lower pressing portion 51 is positioned higher than the height of the hinge piece 5. 12; a cored bar pushing-out means 13 for advancing the placed cored bar 6 toward the resin temple 7 held by the temple holder 9 and inserting the cored bar 11 into the resin temple 7 in a required state. When;
All the core metal pressing members 31 constituting the core metal pressing means 12 are operated so that all of the core metal pressing members 31 are in the raised position so as not to hinder the placement of the core metal on the core metal receiving base 10 and the core metal pushing means 13 is used. Prior to the pushing-out operation of the cored bar 6, all of the cored bar 6 are operated so as to press the cored bar 6, and the cored bar pressing member arranged in parallel with the cored bar pushing out by the cored bar pushing-out means 13 is It is characterized in that it comprises a pressure regulating means 15 for successively raising it so that it does not collide with the hinge piece 5 moving forward.

The positioning portion 16 is preferably formed as a groove for fitting the core metal 6.

The core metal pushing-out means 13 allows the core metal pushing rod 57 whose front end portion 55 can engage with the hinge piece 5 to move forward and backward, and
It is preferable that the cored bar 6 is inserted into the resin temple 7 by advancing the cored bar pushing rod 57 with the tip 55 engaged with the hinge piece 5. At this time, in order to prevent the core metal pushing rod 57 from swinging in the vertical direction, it is preferable to provide a guide groove portion 66 or a guide protrusion portion 66 that is fitted with the side edge portion 65 thereof.

The pressing portion 51 on the lower side of the core metal pressing member 31 is preferably configured as a pressing roller 51a that rotates as the core metal 6 advances.

Further, the bottom of the groove 20 for fitting the cored bar provided in the cored bar receiving base 10 is a roller row in which rollers 86 that rotate with the advance of the cored bar 6 are arranged side by side at a small interval. It is preferable to configure it as the upper surface portion.

[Action]

However, after the cored bar 6 is placed on the top surface of the cored bar receiving base with the positioning portion 16 on the top surface of the cored bar receiving base 10 as a mark, each core bar pressing member 31 presses the core bar 6. After that, the core bar 6 is made of resin by the operation of the core bar extruding means 13.
To move forward. Along with this forward movement, the cored bar pressing member 31 pressing the cored bar 11 in a juxtaposed state is sequentially raised so as not to collide with the forward hinge piece 5. Therefore, the cored bar 6 can be naturally inserted into the resin temple 7 in a required state while the stability of the insertion is ensured.

The core pushing-out means 57 for moving the core pushing means 13 forward and backward.
In the case of being configured with, the guide portion 66 is in a fitted state with the side edge portion 65 of the mandrel pushing rod 57 that advances, so that the pushing of the mandrel by the mandrel pushing rod 57 should be performed in an extremely stable state. Becomes

The pressing portion 51 on the lower side of the core metal pressing member 31 is configured as a rotating pressing roller 51a, and the bottom portion of the groove 20 as the positioning portion 16 for fitting the core metal is configured as an upper surface portion of the rotating roller row. In this case, even if the surface portion of the cored bar is provided with a fine uneven pattern such as a satin finish, the pattern is not damaged. Therefore, even when the resin vine is made transparent so that the pattern shown on the surface of the core metal can be seen through, the spectacle vine is finished with a good appearance.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 6, a device 1 according to the present invention, as shown in FIG. 3, includes a cored bar 6 in which a rod-shaped part 3 is continuously provided to a wide part 2 and a hinge piece 5 is provided in the wide part 2. A resin vine 7
It is a device for inserting into a required state in FIG. 8 (see FIGS. 8 to 9), and includes a cored bar receiving base 10 continuously provided to the temple holding portion 9 and a cored bar 6 received by the cored bar receiving base 10. A mandrel pressing means 12 capable of pressing, a mandrel pushing means 13 for advancing the mandrel 6 toward the resin temple 7, and a mandrel pressing means 12
Pressing restriction means 1 for restricting the operation of pressing the cored bar by means of
5 and 5. This will be specifically described as follows.

As shown in FIGS. 3 to 4, the cored bar receiving base 10 has a prismatic shape having a length substantially equal to the length of the cored bar 6, and a positioning portion 16 is provided on the upper surface thereof. In this embodiment, the positioning portion 16 is provided with a stepped groove in which a narrow groove 19 for fitting the rod-shaped portion 3 is provided in a central portion in the longitudinal direction of a wide groove 17 for fitting the wide portion 2. Is formed as the groove 20. The groove depth of the narrow groove 19 is set to about 1/2 of the wall thickness of the rod portion 3. The core bar 10 is
It is made to be housed in a fitting groove 22 of an upper opening provided in the holder portion 21 so as to be continuously connected to the temple holding portion 9, and a lock which is erected at a bottom portion of the fitting groove 22, for example, at a position near one end. The pin 23 is inserted into a locking hole 25 provided in the bottom portion of the core bar receiving base 10 near one end to prevent movement in the front-rear direction. In addition, a heater (not shown) is provided in the holder portion 21 for the purpose of heating the cored bar 6 mounted on the upper surface of the cored bar receiving base 10 to a required temperature to facilitate insertion into the resin temple 7. Is built in. As shown in FIGS. 1 and 6, the temple holding portion 9 has a housing portion 26 on the upper surface for housing the resin temple 7 that has been heated to a required temperature and softened, and with respect to the axis of the housing portion 26. Lower die 27 that can move forward and backward in a direction (arrow direction) orthogonal to each other, and the housing portion 2
The movable upper mold 30 is capable of pressing the resin temple 7 housed in 6 and moving up and down according to the expansion and contraction of the air cylinder 29.

The core metal pressing means 12 is, as shown in FIGS. 1 and 2 and 4 to 5, more than the hinge piece 5 of the core metal 6 mounted on the groove 20 provided on the upper surface of the core metal receiving base 10. A plurality of vertically movable core metal pressing members 31 are arranged in parallel in the core metal length direction so as to face the front portion. In this embodiment, the column 3
The core metal pressing member 31 is incorporated in a box body 36 that is guided by the second cylinder 2 and is fixed to an elevating member 35 that can move up and down in response to the expansion and contraction of the air cylinder 33. The box 36 is
It has a rectangular parallelepiped box shape that is long in the front-rear direction and has a hollow interior, and a bottom slide 37 has a rectangular lower slide hole 39 arranged side by side, and a top slide 40 has a circular upper slide hole 41 slid downward. It is provided so as to face the hole 39. The core metal pressing member 31 has a column-shaped upper portion 43 capable of vertically sliding in the upper slide hole 41 at the upper end of a prism-shaped lower portion 42 capable of vertically sliding in the lower slide hole 39. The upper part 4 is provided in series.
An engaging head portion 45 is fixed to the upper end of 3. The engaging head portion 45 has a length substantially equal to the width of the top surface portion of the box body 36, and the lower surfaces of both end portions of the engaging head portion 45 are inclined surfaces 46 that are inclined upward toward the rear. Further, the lower end portion of the lower portion 42 is formed in a bifurcated shape, and includes bearing pieces 47, 47 facing each other. The bearing pieces 47, 47 have a width slightly smaller than the maximum width of the groove 20, and a pressing roller 51 as a pressing portion 51 for pressing the upper surface 50 of the cored bar 6 on the peripheral surface 49 thereof.
a is rotatably attached. A coil spring 52 is fitted into the upper portion 43 in a slightly compressed state, the lower end of which is in contact with the upper surface of the lower portion 42 and the upper end of which is in contact with the inner surface of the top surface portion 40.
The engaging head 45 is in constant contact with the upper surface 53 of the top surface portion 40 by the urging action of. A circular observation window 53 for monitoring breakage of the coil spring 52 is provided on the side surface of the box body 36 so as to correspond to each core bar pressing member 31, as shown in FIGS. 1 and 10. ing.

As shown in FIGS. 1-2 and 6, the core metal pushing-out means 13 includes a core metal pushing rod 57 whose front end portion 55 can engage with the rear portion of the hinge piece 5. The core metal pushing rod 57
Is made to project at the front end of a sliding member 62 that can move back and forth on the machine base upper surface 61 in accordance with the expansion and contraction movement of the air cylinder 60 fixed to the machine base 59, and is provided at a slightly rearward portion of the core bar receiving base 10. The holding hole portion 63 fixed to the machine base is slidable. Then, as the sliding member 62 advances along with the expansion of the air cylinder 60, the cored bar 6 placed in a desired position on the cored bar receiving base 10 is moved to the resin temple 7 held by the temple holder 9. It is configured to be advanced toward and insert the core metal 6 into the resin temple 7 in a required state.
In this embodiment, since the protruding length of the cored bar pushing rod 57 from the holding hole 63 is gradually increased as the cored bar is pushed out, the vertical deflection of the cored bar pushing rod 57 is prevented as much as possible. For the purpose, the one side edge portion 65 of the protruding portion of the core metal pushing rod 57 protruding from the holding hole portion 63 is a guide provided integrally with the holder portion 21 along one side edge portion of the core metal receiving base 10. It is configured to be fitted with the guide groove portion 66a as the portion 66. The tip portion 58 of the mandrel pushing rod 57 can be changed according to the form of the hinge piece 5 fixed to the mandrel 6.

As shown in FIGS. 1-2 and 7, the pressing restricting means 15 is provided in parallel with the engaging head portion 45 having the inclined surface 46 and the core metal pushed by the core metal pushing rod 57. And a regulating rod 67 for sequentially raising the core metal pressing member so as not to collide with the hinge piece 5 which advances. The regulation rod 67 is a fixing piece 7 that can be fitted into a fitting groove 69 that is provided in the upper surface of the sliding member 62 and that extends in the front-rear direction.
At the front end of 0 (see FIG. 7), the upper surface of the front end portion is inclined to match the inclination of the inclined surface 46 of the engaging head 45, and the inclined surface 71 is inclined.
And a pair of left and right rod pieces 7 whose upper and lower surfaces are horizontal
2, 72 are formed to project. Also, the fixing piece 7
0 is the screw hole 7 provided in the bottom portion 73 of the fitting groove 69.
Long holes 76, 76 for inserting the fixing bolt 75 screwed into the screw 4 are provided in the front and rear. The fixing piece 70 is fixed to the sliding member 62 via the washer plate 77 by the fixing bolt 75, and the restriction rod 67 projects forward in the range of the length of the elongated hole 76. The length is adjustable. The tip of the regulation rod 67 is
It is set so as to project slightly forward from the tip of the core rod pushing rod 57. This is because the pressing roller 51a does not collide with the hinge piece 5 that advances as the core metal pressing rod 57 is pushed out, so that the pressing roller 51a is sequentially lifted from the core metal pressing member on the rear side. In order to achieve such an object, the lower surface 78 of the rod piece 72 contacts the upper surface 53 of the box body 36 when the pressing roller 51a presses the core metal 6 by the expansion of the air cylinder 33. (Second
(See FIG. 11), and the vertical thickness of the rod piece 72,
With the lower end 46a of the inclined surface of the engaging head 45 placed on the upper surface 79 of the rod piece 72, the lower end of the pressing roller 51a is set above the height of the hinge piece 5 (see FIG. 1). , See FIG. 11).

Next, an example of how to insert the core metal 6 into the resin temple 7 by the device 1 according to the present embodiment will be described in the case of manufacturing the spectacle temple 80a with the core metal shown in FIG. 8 and the core shown in FIG. The case of manufacturing the spectacle temple 80b containing gold will be described separately.

Manufacturing Procedure of Spectacle Vine Shown in FIG. 8 The core metal 6 used to manufacture the spectacle temple 80a shown in FIG. 8 has a shape in which the rod portion 3 is connected to the wide portion 2 and the wide portion is formed. The hinge piece 5 is fixed at the end of 2. Further, the resin-made temple 7 has a length such that substantially the entire core metal 6 can be inserted therein, and a cutout recess 81 for introducing a hinge piece is provided at an end thereof. Resin vine 7 having such a configuration
In order to insert the core metal 6 into the core, the resin temple 7 heated to the required temperature and softened is positioned at the rear end of the accommodating portion 26 of the holding portion 9 of the temple holding portion 9 with the notched concave portion 81 facing upward. It is stored in the accommodation portion 26 in the state of being. On the other hand, core metal 6
The cored bar cradle 10 having the groove 20 conforming to the width of the core bar is stored in the fitting groove 22 of the holder 21 and the locking pin 23 is inserted into the locking hole 25 to be in a fixed state. 1
The cored bar 6 is housed in the groove 20 of 0. At this time, the hinge piece 5 is formed so as to project upward at the rear end of the groove 20, and the wide portion 2 is fitted in the wide groove 17 of the groove 20 and the rod portion 3 is fitted in the narrow groove 19. Put in.

Then, the elevating member 35 is lowered by the extension of the air cylinder 33, and as shown in FIG. 10, the pressing roller 51a of each mandrel pressing member 31 moves the mandrel 6 onto the wide part upper surface 50a and the bar-shaped part upper surface 50b. Keep pressed. At the same time, the movable upper mold 30 is lowered by the extension of the air cylinder 29, and the resin temple 7 in the softened state is held by the upper and lower molds 30 and 27. In this state, the core bar pushing rod 57 constituting the core bar pushing means 13
After engaging the tip portion 55 of the hinge piece 5 with the rear side portion of the hinge piece 5, the air cylinder 60 is extended to push the cored bar 6 toward the resin temple 7, in which case the cored bar pushing rod 57 is used.
As shown in FIG. 6, one moves forward in a stable state in which one side edge portion thereof is held by the guide groove portion 66a. Further, with the pushing of the cored bar by the cored bar pushing rod 57, the cored bar pressing members 31 arranged in parallel are sequentially lifted from the rear side so that they do not collide with the hinge piece 5 moving forward. Further, the core metal 6 placed in the groove 20 is already heated to the required temperature by the heater built in the holder portion 21, so that it is immediately heated to the required temperature by being fitted into the groove 20. It will be. Therefore, the core metal 6 is smoothly inserted into the softened resin temple 7, and the hinge piece 5 is accommodated in the notch recess 81 as shown in FIG.

After the insertion of the core into the resin-made temple 7, the air cylinder 29 is contracted and the movable upper die 30 is raised, so that the spectacle temple 80a shown in FIG. 8 is obtained. At the same time, the air cylinder 60 is contracted to retract the sliding member 62 so that the engaging head portion 45 of each core bar pressing member 31 is in contact with the upper surface 40 of the box body 36, and then the air cylinder. When 33 is reduced and the box body 36 is raised, a space that does not hinder the placement of the cored bar 6 is formed between the cored bar receiving base 10 and the cored bar pressing member 31 ( (See Figure 1).

Manufacturing procedure of spectacle temple shown in FIG. 9 The core metal 6 constituting the spectacle temple 80b shown in FIG. 9 has a rectangular parallelepiped shape set to have dimensions equal to the width and thickness of the resin temple 7, and its end portion is Bulging portion 82 to which the hinge piece 5 is fixed
The rod-shaped portion 3 is connected to the wide portion 2 having the shape. Also in the case of manufacturing the spectacles vine 80b having such a configuration, similarly to the above, the holding portion 9 for holding the softened resin vine 7 is provided.
On the other hand, the cored bar 6 is placed in the groove 20 of the cored bar receiving base 10 while the cored bar 6 is pushed out by the advance of the cored bar pushing rod 57, and at the same time the cored rod 6 is advanced by the advance of the regulation rod 67. The pressing member 31 is sequentially pushed up. In this case, core metal 6
As shown in FIG. 13, because of the bulging portion 82,
The core metal 6 is inserted into the resin temple 7 until the front end surface 83 of the bulging portion 82 comes into close contact with the rear end surface 85 of the resin temple. Further, in this case, the forward protrusion amount of the restriction rod 67 is set to be slightly smaller than that in the above case by utilizing the long hole 76 provided in the fixing piece 70, and even in the final insertion state of the core metal 6, An appropriate number of pressing members 51 are in a state of pressing the cored bar so that the cored bar can be inserted more stably.

After that, the core metal pushing rod 57 and the regulating rod 67 are retracted, and the air cylinder 33 is contracted so that the box 3
By raising 6 and raising the movable upper die 30, the spectacle temple 80b as shown in FIG. 9 is obtained.

Others FIGS. 14 to 15 show another example of the core receiving table 10, in which the bottom of the groove 20 for inserting the core has a roller 86 that rotates with the advance of the core 6 in a small size. It is configured as an upper surface portion of a roller row that is arranged in parallel at intervals. In the figure, a groove 87 for fitting the lower half of the rod-shaped body 3 is provided around the center of the roller 86.

When the pressing portion 51 of the core metal pressing member is formed by a roller and the bottom of the groove 20 is configured as the upper surface of the roller row, the core metal is rubbed against the pressing portion or groove bottom when inserting the core. Therefore, even if a fine uneven pattern such as a satin pattern is applied to the surface of the cored bar, the pattern will not be damaged.Therefore, the resin vine should be transparent and exposed on the surface of the cored bar. Even when the formed pattern is made transparent, the spectacle vine is finished with a good appearance, which is preferable.

Positioning part 16 provided on the upper surface of the core receiving table 10.
The point is that it only has to serve as a mark for properly inserting the cored bar 6 into the resin temple 7, so that it is formed as the line groove shown in the above-mentioned embodiment, and the 16th As shown in the figure, it may be formed as a marking line 88 such as a groove line indicating the axis of the cored bar to be placed.

The pressing restricting means 15 operates the core metal pressing member 31 so that all of the core metal pressing members 31 are in the raised position so as not to hinder the placement of the core metal on the core metal receiving stand 10, and the core metal pushing means 13 operates the core metal. Prior to the pushing-out operation of the metal 6, all of them are operated so as to press the cored bar, and as the cored bar pushing-out means 13 pushes out the cored bar, the cored bar pressing member arranged in parallel moves forward. It suffices that the hinge pieces 5 be operated so as to be sequentially raised so as not to collide with the hinge pieces 5, and the hinge pieces 5 are not limited to those shown in the embodiment. For example, even when the restriction rod 67 shown in the embodiment is used,
It may be inserted into an engaging through hole provided in the engaging head portion 45 and having an upper surface inclined (inclined similarly to the inclined surface 46). In addition, a vertical motion device may be provided corresponding to each core bar pressing member 31.

FIG. 17 shows another example of the guide portion 66,
The guide portion 66 is formed as a guide protrusion 66b which can be fitted into a groove portion 89 formed in a side edge portion of the core metal pushing rod 57 and extending in the lengthwise direction.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY The present invention not only allows a metal core to be correctly inserted into a resin temple by a mechanical operation, but also can easily accommodate various core metal insertions and has excellent operability, and only if it is possible to achieve a significant improvement in work efficiency. In addition, even a spectacle vine with a special cored bar can be manufactured without difficulty and with good finish. This will be described more specifically as follows.

The device 1 according to the present invention is configured such that all of them are in the raised position so as not to hinder the placement of the cored bar on the cored bar cradle. Therefore, the cored bar can be properly placed while visually observing the entire cored bar with the positioning portion provided on the cored bar cradle as a mark.

Therefore, as compared with the conventional case where the core metal is pushed into the core metal introduction hole formed in the passage having the quadrangular cross section, the work can be performed very efficiently.

Since the conventional device has adopted the method of inserting the core metal into the passage where the internal state cannot be visually observed, in order to ensure that the core metal is correctly inserted into the resin temple, the core for positioning A gold introduction hole was essential. Therefore, conventionally, it has been necessary to form the core metal introducing hole by cooperating with the guide groove at the bottom of the passage by using a large number of rollers having peripheral grooves corresponding to the width of the core metal.

For this reason, it is necessary to prepare dozens of types of roller aggregates to accommodate a wide variety of core metal widths, and there is a problem that storage management is very complicated. When replacing the rollers, it was necessary to fit each roller into the track one by one, and it took a lot of time to replace the rollers, and there was a problem that the working efficiency was extremely poor. Since the upper portion of the core bar cradle is completely visible and open, such problems are eliminated.

Further, in the conventional device in which the roller is essential, there is a problem that the roller is easily damaged during rolling and is easily worn due to the pressing between the rollers, which makes it difficult to smoothly insert the core metal. However, such a problem does not occur at all.

Since the device according to the present invention is open above the core bar, the special glasses temple shown in FIG. 9, that is, the rear end portion of the core bar is provided with a wide and thick bulge. Even the spectacle vine formed as described above can be manufactured extremely easily.

This is because the upper part of the core bar is open.
The reason is that even a pair of eyeglasses with a cored bar having such a bulging portion can be easily removed.
In the conventional device, since the passage is formed as a quadrangular through hole, it is impossible to take out the spectacle temple when the bulging portion of the core is stopped in the passage when the pushing of the core is completed. I couldn't make it.

The production of such a special spectacle temple will be as follows in comparison with the case where the half-vines are attached as described above. That is, in the case of such a bonding method, a lot of work is required for the work and the productivity is very poor. In addition, if the resin-made integrated adhesive vine makes it difficult to closely adhere the connection portion with the bulging portion. There was a problem that an unclear gap was generated in the part. On the other hand, according to the present invention, since the core metal is strongly pressed toward the resin temple, the connecting portion between the bulging portion and the resin temple is surely brought into close contact with each other to form an unclear gap. Therefore, it is possible to manufacture a spectacle vine that has a good appearance and a good commercial value.

Further, a spectacle temple using a cored bar provided with such a bulged portion is very useful in terms of improving the design effect of the spectacle temple with various decorations applied to the bulged portion, and in addition, the tip of the spectacle temple. Since the bulging portion is surely protected by the bulging portion, the added value of the spectacle temple is significantly improved.

The apparatus of the present invention has a great advantage that such a spectacle temple with high added value can be easily manufactured.

In the case where the mandrel pushing-out means is constituted by using a mandrel pushing rod, the device is constituted so as to include a guide groove portion or a guide portion as a guide projection which is fitted with the side edge portion of the mandrel pushing rod. It is preferable that the core metal can be extruded in an extremely stable state.

The lower pressing portion of the mandrel pressing member is configured as a pressing roller that rotates as the mandrel advances, and the bottom of the groove for fitting the mandrel provided in the mandrel holder is provided on the upper surface of the roller row. When it is configured as a part, it is preferable because damage to the cored bar during insertion of the cored bar can be prevented as much as possible.

In such a configuration, even if the surface portion of the cored bar has a fine uneven pattern such as a satin pattern, the pattern is not damaged, and therefore the resin temple is transparent. When the spectacle temple is configured so that the pattern shown on the surface of the cored bar can be seen through, the spectacle temple can be finished with a good appearance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a partially cutaway perspective view showing a main part thereof, and FIG. FIG. 4 is a perspective view showing a cored bar and a holder for holding the cored bar, and FIG. 4 is an explanatory view showing a state in which the cored bar fitted in the groove of the cored bar is pressed by the pressing roller,
FIG. 5 is a perspective view showing a mounting state of the core bar pressing member to the box body, FIG. 6 is a perspective view illustrating a core bar pushing state by the core bar pushing means, and FIG. 7 is a regulating rod sliding member. 8 to 9 are perspective views illustrating a spectacles vine with a cored bar inserted therein, and FIGS. 10 to 12 are books for manufacturing the spectacles vine shown in FIG. FIG. 13 is an operation explanatory view of the device according to the present invention, FIG. 13 is an operation explanatory view of the device according to the present invention when the spectacle vine shown in FIG. 9 is manufactured, and FIG. 14 is a perspective view showing another example of the core bar Figure, first
FIG. 5 is a partially cutaway perspective view showing the axial support state of the roller,
FIG. 17 is a perspective view showing another example of the positioning portion provided on the core receiving table, FIG. 17 is a sectional view for explaining another aspect of the guide portion, and FIGS. 18 to 19 are sectional views for explaining the conventional device. FIG. 20 to FIG. 21 are perspective views illustrating a roller used in a conventional device, and FIG. 22 is an explanatory view illustrating problems in the case where a cored bar having a bulge portion is inserted using the conventional device, FIG. 23 is a perspective view showing a part of a spectacle vine produced by laminating resin vines which are divided in half with a core metal sandwiched therebetween. 1 ... Device, 5 ... Hinge piece, 6 ... Mandrel, 7 ... Resin vine, 9 ... Vine holder, 10 ... Mandrel cradle, 12 ...
... core metal pressing means, 13 ... core metal pushing means, 15 ... pressing regulating means, 16 ... positioning part, 31 ... core metal pressing member, 51 ... pressing part, 51a ... pressing roller, 57 ...
Core metal pushing rod, 66 ... guide part, 86 ... roller.

Claims (6)

[Claims] 1. A device for inserting a cored bar 6 having a hinge piece 5 at a rear end thereof into a resin temple 7, which is connected to a temple holder 9 for holding the resin temple 7. And a cored bar receiving base 10 having a positioning portion 16 provided on the upper surface, which serves as a mark for mounting the cored bar 6 to be inserted into the resin temple 7. A vertically movable mandrel pressing member 31 is juxtaposed in the longitudinal direction of the mandrel 6 at a required interval so as to face a part of the mandrel 6 placed on the front side of the hinge piece 5. At the lower end position of the metal pressing member 31, the lower pressing portion 51 presses the core metal 6, and at the upper end position, the lower pressing portion 51 is positioned above the height of the hinge piece 5. The metal core pressing means 12 and the placed core metal 6 are held by the temple holding portion 9 and the resin-made temple 7 is held. The core metal pushing-out means 13 for advancing the core metal 11 into the resin-made temple 7 in a required state, and each core metal pressing member 31 constituting the core metal pressing means 12 are placed on the core metal receiving base 10. All of them are operated so as to take a raised position so as not to hinder the placement of the cored bar, and all of them are in a state of pressing the cored bar 6 prior to the pushing out operation of the cored bar 6 by the cored bar pushing means 13. Pressing control means 15 that is operated and sequentially raises the cored bar pressing members that are arranged in parallel with the pushing out of the cored bar by the cored bar push-out means 13 so as not to collide with the hinge piece 5 that advances. An apparatus for inserting a core into a resin vine, characterized by comprising: 2. The core metal inserting device for a resin temple according to claim 1, wherein the positioning portion 16 is formed as a groove for fitting the core metal 6 therein. 3. The mandrel push-out means 13 allows a mandrel pushing rod 57, whose tip 55 can engage with the hinge piece 5, to move forward and backward, and in a state where the tip 55 engages with the hinge piece 5. A structure in which the core metal 6 is inserted into the resin temple 7 by advancing the core metal pushing rod 57.
(1) A device for inserting a core metal into a resin temple as described in (1). 4. A guide portion 66 as a guide groove portion or a guide projection portion fitted with a side edge portion 65 thereof is provided to prevent the core metal pushing rod 57 from swinging in the vertical direction. Device for inserting a core metal into the resin-made temple described. 5. The pressing portion 51 on the lower side of the core metal pressing member 31 is
The core bar insertion device for a resin temple according to claim 1, which is configured as a pressing roller 51a that rotates as the core bar 6 advances. 6. A roller 86, which rotates with the forward movement of the core bar 6, is arranged in parallel at the bottom of a groove 20 in which the core bar is fitted, the roller groove being provided in the core bar cradle 10. 6. The device for inserting a cored bar into a resin temple according to claim 5, wherein the device is configured as an upper surface portion of the roller row.