JP3562312B2 - Method for forming band-shaped film and apparatus using this method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method of forming a belt-like film used for a blister film for packaging food or medicine, a carrier tape for transporting electronic components, and the like, and an apparatus using the method.
[0002]
[Prior art]
Hereinafter, a conventional method for forming a strip film will be described with reference to the drawings.
[0003]
FIG. 4 is a perspective view of a main part of a conventional strip film forming apparatus, FIG. 5 is a sectional view of a lower mold part and an upper mold part which are the main parts, and FIG. 6 is a perspective view of the strip film.
[0004]
The conventional strip film forming apparatus firstly includes a portion for holding a strip film 11 between an upper heating body 2 having an upper heating chip 1 and a lower heating body 4 having a lower heating chip 3 and emboss forming for a certain time. Heat.
[0005]
Next, after transferring the belt-shaped film 11 at a predetermined pitch, an embossing punch 21 for embossing the heated embossed portion, an upper mold portion 23 having a feed hole punch 22 for forming the feed hole 13, The embossed punch 21 of the upper mold part 23 and the lower mold part 25 provided with the die holder 24 for fitting the punch 22 for the feed hole are pressed to form the embossed part 12 and the feed hole 13.
[0006]
Finally, after the belt-shaped film 11 is transported at a predetermined pitch, an inner bottom hole die (not shown in the figure) for forming an inner bottom hole in the inner bottom surface of the embossed portion 12 and an inner bottom hole. The inner bottom hole 14 was formed by using a press device (not shown in this figure), and the strip film 11 having the embossed portion 12, the feed hole 13 and the inner bottom hole 14 was formed.
[0007]
[Problems to be solved by the invention]
Here, after forming the embossed portion 12 and the feed hole 13 in the strip film 11, the inner bottom hole die and the press machine for the inner bottom hole for processing the inner bottom hole 14 to form the inner bottom hole 14 are formed. Therefore, there is a problem that the apparatus for forming a belt-shaped film itself becomes large.
[0008]
An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a method for forming a miniaturized belt-like film and an apparatus using the method.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a heating mechanism for sandwiching a strip film and heating an embossed portion, and an embossed portion, a feed hole, and a hole for an inner bottom surface in a traveling direction of the strip film heated by the heating mechanism. A mold mechanism having a lower mold part and an upper mold part to be formed, and a band-shaped film forming apparatus having a transfer mechanism for transferring the band-shaped film to either before or after the mold mechanism or the heating mechanism, The lower mold portion of the mold mechanism is connected to a die holder, an emboss / feed hole forming die plate portion having an embossing die and a feed hole forming die on the upper surface of the die holder, and the emboss / feed hole forming die plate portion. A die plate provided with an inner bottom surface hole forming die plate portion having an inner bottom surface hole die, and the upper mold portion is inserted through the punch holder and the punch holder. The embossing die of the lower mold portion provided by the embossing / feed hole punch plate portion fitted to the feed hole forming die and the lower mold portion provided in continuous connection with the embossing / feed hole punch plate portion A punch plate having an inner bottom hole punch plate portion fitted to the bottom hole die, and a stripper plate for inserting the embossed punch, feed hole punch and inner bottom punch below the punch plate. In addition, the stripper plate below the embossing / feed hole punch plate portion is provided with a holding projection.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, the stripper plate below the embossing / feed hole punch plate portion is provided with holding projections, and has an effect of absorbing the load concentrated on the outer periphery of the embossed portion.
[0011]
According to the second aspect of the present invention, the stripper plate below the punch plate portion for the inner bottom surface hole is provided with a holding convex portion, and has an effect that the inner bottom surface of the embossed portion can be securely held. .
[0012]
(Embodiment)
Hereinafter, a band-shaped film forming apparatus and a forming method using the forming apparatus according to an embodiment of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is a perspective view of a main part of a strip film forming apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line XX, and FIG. 3 is a sectional view taken along line YY.
[0014]
In the figure, reference numeral 41 denotes an upper heating chip, which is provided on the lower surface of an upper heating body 42 which moves up and down, descends with the downward movement of the upper heating body 42, comes into contact with the band-shaped film 31, and The portion for forming the embossed portion 32 is heated from the upper surface to a temperature at which molding is possible for a certain period of time. A lower heating chip 43 is provided on the upper surface of the lower heating body 44 which moves up and down, and rises with the upward movement of the lower heating body 44 in conjunction with the downward movement of the upper heating body 42 to form a strip. The portion which contacts the film 31 and forms the embossed portion 32 of the strip-shaped film 31 is heated from the lower surface to a temperature at which molding can be performed for a certain period of time. The lower heating body 44 having the lower heating chip 43 and the upper heating body 42 having the upper heating chip 41 constitute a heating mechanism. In front of the heating mechanism, there is provided a supply mechanism (not shown in the figure) for supplying the band-shaped film 31 wound in a roll shape such as a reel. In this figure, the belt-shaped film 31 is transferred from left to right and advances.
[0015]
A portion of the belt-shaped film 31 heated and heated at a portion where the embossed portion 32 is formed by the heating mechanism has a mold mechanism at a portion where the film 31 is transferred and advanced. This mold mechanism has a lower mold part that moves up and down below the belt-like film 31 and an upper mold part that moves up and down.
[0016]
The lower mold part has a die holder 51 and a die plate 52 on the upper surface of the die holder 51. The die plate 52 has a plurality of embossed die portions 53 having substantially the same shape as the embossed portions 32 and has a plurality of feed hole forming dies 54 for forming the feed holes 33 on at least one side of the strip film 31. An emboss / feed hole forming die plate portion 50a is provided. On the lower surface of the feed hole forming die 54, a feed hole punching waste (not shown in this drawing) for punching out a feed hole punching waste (not shown in the drawing) of the strip film 31 for forming the feed hole 33 is discharged. It has a hole 55. Further, the die plate 52 has an inner bottom hole die 56 connected to the embossing die portion 53 and an inner bottom having a step lower than the embossing / feed hole forming die plate portion 50 a having the embossing die portion 53. The surface hole forming die plate 50b is provided. The upper surface of the inner bottom hole die 56 is provided at a position in contact with the bottom surface of the embossed portion 32. Further, on the lower surface of the hole die 56 for the inner bottom surface, an inner bottom surface for discharging a hole punching scum (not shown in this drawing) of the inner bottom surface punched out of the strip film 31 to form the inner bottom surface hole. It has a hole punching waste discharge hole 57.
[0017]
On the other hand, the upper mold portion has a punch holder 61, and an embossing punch 62 from the punch holder 61 toward the embossing die portion 53, and a feed hole punch 63 toward the feed hole forming die 54. An inner bottom punch 64 is provided toward the bottom hole die 56, and fitted into the embossing die 53, the feed hole forming die 54, and the inner bottom hole die 56, respectively. The embossing punch 62 and the feed hole punch 63 are fixed to the punch holder 61 by inserting the punch plate 65 provided with the punch holder portion 60b for the inner bottom surface through the punch plate 65 provided with the punch holder portion 60b for the inner bottom surface. Have been. Further, the embossing punch 62, the feed hole punch 63, and the inner bottom punch 64 are inserted through the stripper plate 66, and a gap between the stripper plate 66 and the punch plate 65 such as a spring for urging downward is provided. A biasing member 67 is provided. Further, a holding projection 68 is provided at the tip of the stripper plate 66 that projects the embossing punch 62 and the feed hole punch 63. At the end of the stripper plate 66 that projects the inner bottom surface punch 64, a holding protrusion 69 is provided, and a configuration is provided in which the size of the outer peripheral width of the holding protrusion 69 can be freely changed.
[0018]
A transport mechanism 71 is provided at a portion where the belt-shaped film 31 processed by the die mechanism is transported and advances. The transfer mechanism 71 is composed of an air feeder or the like, and is provided with at least one.
[0019]
Regarding the strip film forming apparatus configured as described above, a strip film forming method using the strip apparatus will be described below.
[0020]
First, the upper heating body 42 and the lower heating body 44 are moved up and down to predetermined positions where the embossed portions 32 of the belt-shaped film 31 supplied from the supply mechanism are to be formed. Along with this vertical movement, the band-shaped film 31 is sandwiched between the upper heating chip 41 and the lower heating chip 43, and is heated to a temperature at which molding is possible for a certain time.
[0021]
Next, the heated belt-shaped film 31 is transferred to a predetermined position of the mold mechanism by a predetermined pitch transfer mechanism 71.
[0022]
Next, the lower mold portion is raised and brought into contact with the lower surface of the belt-shaped film 31.
[0023]
Next, the upper mold part is lowered to bring the holding projection 68 into contact with the upper surface of the belt-shaped film 31, and the lower mold part is operated in synchronization with the lower mold part as shown in FIG. The upper die is further lowered to a position where the embossing punch 62 and the feed hole punch 63 of the upper die portion are fitted to the die 53 and the feed hole forming die 54 to form the embossed portion 32 and the feed hole 33. I do. When the embossed portion 32 is formed, a phenomenon occurs in which the belt-shaped film 31 flows in the d direction due to the pressing force of the embossing punch 62, that is, the drawing force. In order to minimize this flow, the lower mold portion is When the upper mold portion is raised and the embossed portion 32 and the feed hole 33 are formed, the holding projection 68 absorbs the load concentrated on the outer periphery of the embossed portion of the belt-shaped film 31.
[0024]
Next, the belt-shaped film 31 having the embossed portion 32 and the feed hole 33 formed thereon is moved by the predetermined pitch transfer mechanism 71 so as to be located between the inner bottom hole die 56 forming the inner bottom hole and the inner bottom punch 64. Transfer.
[0025]
Next, the lower mold part and the upper mold part are raised and lowered in the same manner as in the previous step, and the inner bottom surface hole is formed by the inner bottom surface punch 64. At this time, the holding projection 69 provided at the tip of the stripper plate 66 of the upper mold portion presses the inner bottom surface of the embossed portion 32, thereby securely holding the embossed portion 32.
[0026]
By performing the above operations simultaneously and continuously, the belt-shaped film 31 having the embossed portion 32, the feed hole 33, and the inner bottom surface hole is formed.
[0027]
【The invention's effect】
As described above, the present invention provides a heating mechanism that sandwiches a strip-shaped film and heats an embossed portion, and a lower portion that forms an embossed portion, a feed hole, and a hole for an inner bottom surface in a traveling direction of the strip-shaped film heated by the heating mechanism. A mold mechanism having a mold part and an upper mold part, and a band-shaped film forming apparatus provided with a transfer mechanism for transferring the band-shaped film to either before or after the mold mechanism or the heating mechanism; The lower mold portion of the mechanism has a die holder, an embossing / feed hole forming die plate portion having an embossing die and a feed hole forming die on the upper surface of the die holder, and an inner bottom surface connected to the embossing / feed hole forming die plate portion. A die plate provided with an inner bottom surface hole forming die plate portion having a hole die, and an upper mold portion is provided with a punch holder and the punch holder. An embossing die of a lower mold part, an embossing / feeding hole punch plate part to be fitted to a feeding hole forming die, and a hole die for an inner bottom surface of the lower die part provided in connection with the embossing / feeding hole punch plate part. A punch plate having an inner bottom surface punch plate portion to be fitted with, and a stripper plate for inserting the embossed punch, feed hole punch and inner bottom surface punch below the punch plate, Since the stripper plate below the embossing / feed hole punch plate has holding projections, it absorbs the load concentrated on the outer periphery of the embossed molded part, so the same dimensions as when supplying without reducing the width of the strip film Thus, there is provided an effect that a belt-shaped film forming apparatus capable of forming an embossed portion and a feed hole can be provided.
[0028]
In addition, since the stripper plate below the inner bottom hole punch plate portion is provided with the holding projection, the inner bottom surface of the embossed portion can be securely clamped, so that the positioning accuracy when forming the inner bottom hole is improved. In addition, it is possible to provide an apparatus for forming a belt-like film that improves productivity when forming the inner bottom surface.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part of a strip-shaped film forming apparatus according to an embodiment of the present invention; FIG. 2 is a cross-sectional view taken along a line XX; FIG. FIG. 5 is a sectional view of a lower mold part and an upper mold part, which are the principal parts. FIG. 6 is a perspective view of a strip film.
31 strip-shaped film 32 embossed portion 33 feed hole 41 upper heating chip 42 upper heating body 43 lower heating chip 44 lower heating body 50a emboss / feed hole forming die plate portion 50b inner bottom surface hole forming die plate portion 51 die holder 52 die plate 53 emboss forming Die 54 Feed hole forming die 56 Hole die 60a for inner bottom surface Emboss / feed hole punch holder 60b Punch holder 61 for inner bottom surface Punch holder 62 Emboss forming punch 63 Punch for feed hole 64 Punch for inner bottom surface 65 Punch plate 66 With stripper plate 67 Force member 68 Holding projection 69 Holding projection 71 Transfer mechanism

Claims (2)

A heating mechanism for holding the strip-shaped film and heating the embossed part, and a lower mold part and an upper mold part for forming the embossed part, the feed hole and the hole for the inner bottom surface in the traveling direction of the strip-shaped film heated by the heating mechanism And a mold mechanism having a transfer mechanism for transferring the strip film to either before or after the mold mechanism or the heating mechanism.
The lower mold portion of the mold mechanism is connected to a die holder, an emboss / feed hole forming die plate portion having an embossing die and a feed hole forming die on the upper surface of the die holder, and the emboss / feed hole forming die plate portion. A die plate provided with an inner bottom surface hole forming die plate portion having an inner bottom surface hole die, and an upper mold portion includes a punch holder, and an embossment of the lower mold portion provided through the punch holder. A forming die, an embossing / feed hole punch plate portion fitted to the feed hole forming die, and an inner bottom fitting to the inner die hole die for the inner bottom surface of the lower mold portion provided in connection with the emboss / feed hole punch plate portion. A punch plate having a face hole punch plate portion, and a strip for inserting the embossed punch, feed hole punch and inner bottom surface punch below the punch plate. Provided with a plate,
A strip-shaped film forming apparatus, characterized in that a holding projection is provided on a stripper plate below the embossing / feed hole punch plate portion. A heating mechanism for holding the strip-shaped film and heating the embossed part, and a lower mold part and an upper mold part for forming the embossed part, the feed hole and the hole for the inner bottom surface in the traveling direction of the strip-shaped film heated by the heating mechanism And a mold mechanism having a transfer mechanism for transferring the strip film to either before or after the mold mechanism or the heating mechanism.
The lower mold portion of the mold mechanism is connected to a die holder, an emboss / feed hole forming die plate portion having an embossing die and a feed hole forming die on the upper surface of the die holder, and the emboss / feed hole forming die plate portion. A die plate provided with an inner bottom surface hole forming die plate portion having an inner bottom surface hole die, and an upper mold portion includes a punch holder, and an embossment of the lower mold portion provided through the punch holder. A forming die, an embossing / feed hole punch plate portion fitted to the feed hole forming die, and an inner bottom fitting to the inner die hole die for the inner bottom surface of the lower mold portion provided in connection with the emboss / feed hole punch plate portion. A punch plate having a face hole punch plate portion, and a strip for inserting the embossed punch, feed hole punch and inner bottom surface punch below the punch plate. Provided with a plate,
A strip-shaped film forming apparatus, characterized in that a holding projection is provided on a stripper plate below the punch plate portion for an inner bottom surface hole.

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