JP2004106947A - Tape crimping device with parallel function of two planes - Google Patents

Abstract

With the conventional structure, the operation of parallelizing the opposing surfaces of the upper teeth and the lower teeth is troublesome and requires a lot of time, and it is difficult to perform the adjustment with high accuracy.
A sphere having a spherical portion at least in part, a holder having an open upper surface, and an elastic member are provided. The lower teeth 40 mounted in the opening of the holder 30 are supported by the elastic member 60 so as to be vertically movable, and a concave portion 33 is formed on the inner bottom surface of the holder 30. A part of the spherical part 72 is inserted into the concave part 33, and the spherical body 70 is mounted between the holder 30 and the lower teeth 40. At the time of the pressure bonding operation, the lower teeth 40 are inclined following the inclination of the upper teeth 51 of the lower surface of the upper teeth 50, and the upper teeth 51 and the lower teeth 41 that come into contact with the tape become parallel.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a tape crimping apparatus used for taping and packaging an imposition type electronic component on a carrier tape and for pressing and joining two tapes.
[0002]
[Prior art]
2. Description of the Related Art A tape crimping apparatus has been used in which two tapes each having an adhesive applied to an opposing surface are pressurized and joined, or are heated and pressurized and thermocompressed. FIGS. 7 and 8 show a conventional example of this type of tape crimping apparatus. Lower teeth 4 are rotatably mounted on a holder 3 fixed to a base 2 with bolts 1, and upper teeth 5 are provided above the lower teeth 4 so as to be vertically movable. The lower tooth 4 and the upper tooth 5 are provided with a lower tooth surface 4a and an upper tooth surface 5a facing each other. The lower tooth surface 4a and the upper tooth surface 5a are portions that directly contact the tape when the lower tooth 4 and the upper tooth 5 sandwich two tapes.
[0003]
When the carrier tape and the cover tape supplied one above the other are sandwiched between the lower teeth 4 and the upper teeth 5 and pressure-bonded, the two planes of the lower tooth surface 4a and the upper tooth surface 5a are parallel to each other in order to securely join. It is necessary to be. In this conventional tape crimping apparatus, the paralleling is performed as follows.
[0004]
First, after the two bolts 6 are used to perform parallel alignment in the left-right direction in FIG. 7, the bolts 7 are tightened to fix the lower teeth 4 to the holder 3. Next, the bolt 1 is loosened and the holder 3 is aligned in the depth direction in FIG. 7, and then the bolt 1 is tightened to fix the holder 3.
[0005]
[Problems to be solved by the invention]
As described above, in the conventional structure, the paralleling operation is troublesome and requires a lot of time, and it is difficult to perform the adjustment with high accuracy. In addition, the lower teeth 4 and the upper teeth 5 are consumable parts that are frequently replaced, and the posture of the lower teeth 4 needs to be frequently corrected when these are replaced or when the tip is worn out and deformed. Was.
[0006]
Further, as another means for parallelizing, a method as described in JP-A-9-5054 has been considered. In this method, a device for irradiating transmitted light between the upper teeth and the lower teeth is added, and two planes are parallelized using generated interference fringes. However, this method has a problem that the apparatus is complicated and large, and is expensive.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a tape crimping apparatus having a function of parallelizing two planes which can be extremely compactly configured by simple changes.
[0008]
[Means for Solving the Problems]
The present invention has an upper tooth having an upper tooth surface on a first plane, and a lower tooth having a lower tooth surface facing the upper tooth surface on a second plane. In a tape crimping apparatus for crimping between a tooth surface and a lower tooth surface, a first plane and a second plane are automatically adjusted to be parallel during a crimping operation.
That is, the tape crimping device according to the present invention includes a sphere 70 having a spherical portion 72 at least in part, a holder 30 having an open upper surface, and an elastic member 60, and the lower teeth 40 mounted in the opening of the holder 30 are vertically moved. While being movably supported by the elastic member 60, concave portions 33, 43 are formed on at least one of the inner bottom surface of the holder 30 or the lower surface of the lower teeth 40 facing each other, and a part of the spherical portion 72 is partially formed by the concave portions 33, 43. And the sphere 70 is inserted between the holder 30 and the lower teeth 40.
[0009]
【Example】
1 and 2 show a first embodiment of the present invention. A holder 30 having an open upper surface is fixed to the base 2, and lower teeth 40 are inserted into the opening 31 of the holder 30 from above and attached thereto. The lower teeth 40 are supported by a coil spring 60 so as to be vertically movable. A gap is provided between the lower teeth 40 and the holder 30 so that the lower teeth 40 can be inclined at a small angle in the holder 30. A stopper 32 for retaining the lower teeth 40 is attached to the upper part of the holder 30.
[0010]
A spherical concave portion 33 is formed in the center of the inner bottom surface of the holder 30. A sphere 70 is mounted between the inner bottom surface of the holder 30 and the lower teeth 40. The sphere 70 has a shape in which a flat portion 71 is provided by cutting the upper portion of the sphere into a flat shape, and a portion other than the flat portion 71 is a spherical portion 72. The sphere 70 has a part of the spherical surface 72 inserted into the concave portion 33 and is placed on the inner bottom surface of the holder 30, and the flat surface 71 faces the lower surface of the flat lower teeth 40.
[0011]
A flat lower tooth surface 41 is provided at the upper end of the lower tooth 40, and a groove 42 is cut in the center of the lower tooth surface 41. The upper teeth 50 mounted on the upper side are provided with two upper tooth surfaces 51 each having a flat tip and projecting downward. The upper tooth surface 51 is located at a position facing the lower tooth surface 41 of the lower tooth 40. Although not shown, the upper teeth 50 are also attached to the base 2 so as to be vertically movable. The upper teeth 50 have a built-in heater.
[0012]
FIG. 3 shows a use state of the tape crimping device. The carrier tape 8 is placed on the lower tooth surface 41 of the lower tooth 40, and the pocket portion 8 a of the carrier tape 8 is dropped into the groove 42 of the lower tooth 40. An electronic component (not shown) is accommodated in the pocket portion 8a. Then, a cover tape 9 joined to the carrier tape 8 is placed on the carrier tape 8.
[0013]
The two upper tooth surfaces 51 are located on the first plane A, and the lower tooth surface 41 is located on the second plane B. The cover tape 9 and the carrier tape 8 are engaged between the lowered upper tooth surface 51 and the lower tooth surface 41, heated by the upper teeth 50 and thermocompression-bonded. In order for the cover tape 9 and the carrier tape 8 to be thermocompression-bonded evenly over the whole, the plane A and the plane B need to be parallel at the time of compression. If these two planes are not parallel, a part of the upper tooth surface 51 will be in a state of floating from the cover tape 9, and the crimped state will be insufficient.
[0014]
Next, the parallel setting function of the two planes in the present apparatus will be described with reference to FIG. 1 omitting the carrier tape 8 and the cover tape 9. Now, consider a case where the plane A and the plane B in FIG. 3 are not parallel. When the upper teeth 50 are gradually lowered from the state of FIG. 1, the upper teeth 51 contact the lower teeth 41 and push down the lower teeth 40. Then, the lower teeth 40 supported by the coil spring 60 are inclined following the upper teeth 50, so that the upper tooth surface 51 and the lower tooth surface 41 become parallel. That is, the plane A and the plane B in FIG. 3 become parallel. At this time, the stress applied to the upper teeth 50 becomes a repulsive force of the coil spring 60.
[0015]
The lower tooth 40 further pressed down comes into contact with the flat portion 71 of the sphere 70. The sphere 70 rotates and tilts following the inclination of the bottom surface of the lower teeth 40, and when the bottom surface of the lower teeth 40 and the flat portion 71 are in close contact, finally, the parallelization of the two planes is completed. At this time, a predetermined pressure from the upper teeth 50 is applied to the tape sandwiched between the lower teeth 40 and the upper teeth 50.
[0016]
The holder 30 may be configured by combining two members 30a and 30b as shown in FIG. The first member 30a has a concave portion 33 formed at the upper end, and can be a bolt-shaped member having a male thread cut around the first member 30a. The first member 30a is screwed or fitted into a through hole 35 provided on the bottom surface of the second member 30b. 36 is a bolt for fixing the first member 30a to the second member 30b. As shown in FIG. 4, a structure may be adopted in which a gap is not provided between the spherical body 70 and the lower teeth 40, and the two are in contact with each other.
[0017]
Alternatively, as shown in FIGS. 5 and 6, a configuration may be used in which a sphere 70 having a spherical portion 72 on the upper and lower portions is used, and the concave portion 33 and the concave portion 43 are provided on the opposing surfaces of the holder 30 and the lower teeth 40 respectively. FIG. 5 shows an example in which a sphere that has not been cut is used for a sphere 70 and spherical concave portions 33 and 43 are formed on the inner bottom surface of the holder 30 and the lower surface of the lower teeth 40. FIG. 6 shows a sphere 70 having spherical portions 72 at the upper and lower ends of a cylinder, and conical concave portions 33 and 43 formed on the opposing surfaces of the holder 30 and the lower teeth 40, respectively.
[0018]
The lower teeth 40 need only be elastically supported so as to be vertically movable, and the coil spring 60 may be replaced with another elastic member, for example, an elastic member made of cylindrical rubber. The groove 42 of the lower tooth surface 41 does not need to be provided when a flat tape is used. The present invention can be applied not only to the pressure bonding of the carrier tape and the cover tape but also to the pressure bonding of another type of tape.
[0019]
【The invention's effect】
In the tape crimping device according to the present invention, since the upper flank 51 and the lower flank 41 that come into contact with the tape are automatically parallelized at the time of tape crimping, the number of parallel adjustment steps when replacing the lower teeth and the upper teeth is reduced. it can. In addition, variations in the dimensions of the parts can be absorbed, and stable joining results can be obtained even when the upper and lower teeth are slightly worn.
[Brief description of the drawings]
FIG. 1 is a partially sectional side view showing a first embodiment of a tape crimping device of the present invention. FIG. 2 is a partially cutaway front view of the device. FIG. 3 is a side sectional view showing an enlarged state of use of the device. FIG. 4 is a side sectional view of a main part showing a second embodiment of the present invention. FIG. 5 is a side cross sectional view of a main part showing a third embodiment of the present invention. FIG. 6 is a fourth embodiment of the present invention. FIG. 7 is a partial cross-sectional side view of a conventional tape crimping device. FIG. 8 is a front view of the same device. 30 Holder 33 Recess 40 Lower teeth 41 Lower teeth 50 Upper teeth 51 Upper teeth 51 70 Sphere 72 Spherical part

Claims (4)

In a tape crimping device that sandwiches two stacked tapes between upper teeth and lower teeth and presses the same, a sphere having a spherical portion in at least a part thereof, a holder having an open upper surface, and an elastic member are provided. A lower tooth mounted in the opening is supported by an elastic member so as to be vertically movable, and a concave portion is formed on at least one of the inner bottom surface of the holder and the lower surface of the lower tooth, and a part of the spherical portion is formed by the concave portion. A tape crimping device having a function of parallelizing two planes, wherein the spherical body is inserted between the holder and the lower teeth. A sphere having a shape in which a part of the sphere is cut into a plane to provide a flat part is used, a concave part is formed on the inner bottom surface side of the holder, and the flat part faces the lower surface of the flat lower tooth. 1. A tape crimping device having a function of parallelizing two planes. 2. The holder according to claim 1, wherein the holder comprises a first member having a recess at the upper end and a second member having a through hole on the bottom surface, and the first member is inserted and fixed in the through hole of the second member. Tape crimping device with a function of parallelizing two planes. 2. The tape crimping apparatus according to claim 1, wherein a sphere having spherical portions on upper and lower portions is used, and concave portions are formed on both the inner bottom surface of the opposed holder and the lower surface of the lower teeth.

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