Tape cutting device

Abstract

To provide a tape cutting device which is usable without limiting the place to be used and cuts a component supply tape.SOLUTION: A tape cutting device 10 includes: blades 12, 14; a blade support member 26 supporting the blades 12, 14; a tape pressing member 72 facing tips of the blades 12, 14 across a component supply tape 200; and a driving mechanism 74 generating driving force linearly moving one of the blade support member 26 and the tape pressing member 72 toward the other, and making the blades 12, 14 cut the component supply tape 200. The driving mechanism 74 includes: a power transmission member 76 connected to one of the blade support member 26 and the tape pressing member 72; an operation part 78; and power conversion parts 80, 82 converting power applied to the operation part 78 to the driving force in a direction opposite to the blade support member 26 and the tape pressing member 72.SELECTED DRAWING: Figure 18B

Description

[Technical Field]

[0001] The present disclosure relates to a tape cutting device that cuts a component supply tape. [Background technology]

[0002] Patent Document 1 discloses a tape cutting device that cuts a component supply tape that includes a carrier tape formed with pockets for accommodating components and a cover tape attached to the carrier tape so as to cover the pockets. The tape cutting device cuts the component supply tape so that the cut end of the cover tape is positioned in front of the cut end of the carrier tape so that the tape feeder can handle the component supply tape. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-125601 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the tape cutting device described in Patent Document 1 uses an air cylinder as the drive source for cutting the component supply tape. Therefore, the tape cutting device is limited to use near an air pressure source that can supply air pressure, such as a pump.

[0005] Therefore, an object of the present disclosure is to provide a tape cutting device for cutting a component supply tape that can be used anywhere. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, according to one aspect of the present invention, 1. A tape cutting device that cuts a component supply tape including a carrier tape and a cover tape attached to the carrier tape, a blade having a cutting edge; a blade support member that supports the blade; a tape pressing member that faces the cutting edge of the blade across the component supply tape and has a contact surface that comes into contact with the cover tape; a drive mechanism that generates a drive force that moves one of the blade support member and the tape pressing member linearly toward the other, causing the blade to cut the component supply tape, The drive mechanism a power transmission member connected to one of the blade support member and the tape pressing member; Controls, and A tape cutting device is provided, which includes a power conversion unit that converts a force applied to the operation unit into the driving force in the opposing directions of the blade support member and the tape pressing member. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a tape cutting device for cutting a component supply tape that can be used anywhere. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a tape cutting device with a component supply tape placed thereon according to an embodiment of the present disclosure; [Figure 2] FIG. 10 is a perspective view of the tape cutting device with the component supply tape cut off; [Figure 3] FIG. 1 is a perspective view showing a component supply tape and a plurality of blades for cutting the component supply tape. [Figure 4A] Cross section of component supply tape before cutting [Figure 4B] Cross-section of component supply tape after cutting [Figure 5] Right side view of the tape cutter [Figure 6] Front view of the tape cutting device [Figure 7] Left side view of the tape cutter [Figure 8] 1 is a perspective view of a tape support mechanism in a tape cutting device; [Figure 9] FIG. 10 is a perspective view of the tape support mechanism with the component supply tape fixed thereto; [Figure 10] FIG. 1 is an exploded perspective view of the tape support mechanism in a state where the tape holding unit and the blade support unit are separated. [Figure 11] Exploded perspective view of the blade support unit [Figure 12] A diagram showing an eccentric pin for adjusting the inclination and position of the cutting edge of the second blade. [Figure 13] FIG. 1 is an exploded perspective view of a tape holding unit in a tape support mechanism; [Figure 14] FIG. 10 is a perspective view of a state in which the lifting member of the tape holding unit is supported by the blade support unit; [Figure 15] FIG. 10 is a perspective view of the tape support mechanism with the component supply tape cut off; [Figure 16] 1 is a perspective view of a tape pressing mechanism in a tape cutting device; [Figure 17] A perspective view of the tape pressing mechanism from a different perspective [Figure 18A] FIG. 10 is a right side view of the tape cutting device showing the operation of the tape pressing mechanism. [Figure 18B] 18B is a right side view of the tape cutting device showing the operation of the tape pressing mechanism subsequent to FIG. 18A. [Figure 18C] 18B is a right side view of the tape cutting device showing the operation of the tape pressing mechanism [Figure 19] FIG. 10 is a perspective view showing a contact surface of a tape pressing member of the tape pressing mechanism; [Figure 20] Cross-sectional view taken along line AA in Figure 19 [Figure 21A] A diagram showing the operation of the locking mechanism of the tape holding unit [Figure 21B] 21B is a diagram showing the operation of the locking mechanism subsequent to FIG. 21A. [Figure 21C] 21B shows the operation of the locking mechanism. [Figure 22] FIG. 10 is a top view showing the component supply tape positioned in the tape cutting device; [Figure 23] Top perspective view of an adjustment jig for a tape cutting device [Figure 24] 1 is a bottom perspective view of an adjustment jig for a tape cutting device; [Figure 25] FIG. 1 is a perspective view of a tape support mechanism with an adjustment jig attached thereto; [Figure 26] Cross-sectional view taken along line BB in Figure 25 DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, more detailed explanations than necessary may be omitted. For example, detailed explanations of well-known matters or redundant explanations of substantially identical configurations may be omitted. This is to avoid unnecessary redundancy in the following explanation and to facilitate understanding by those skilled in the art.

[0010] The inventor(s) provide the accompanying drawings and the following description to enable those skilled in the art to fully understand the present disclosure, and do not intend for them to limit the subject matter described in the claims.

[0011] Hereinafter, a tape cutting device according to an embodiment of the present disclosure will be described with reference to the drawings.

[0012] 1 and 2 are perspective views of a tape cutting device according to an embodiment of the present disclosure. Fig. 1 shows the tape cutting device 10 with a component supply tape 200 placed thereon, and Fig. 2 shows the tape cutting device 10 with the component supply tape 200 cut.

[0013] Fig. 3 is a perspective view showing a component supply tape and a plurality of blades for cutting the component supply tape, Fig. 4A is a cross-sectional view of the component supply tape before cutting, and Fig. 4B is a cross-sectional view of the component supply tape after cutting.

[0014] The drawings show an XYZ Cartesian coordinate system. The X-axis, Y-axis, and Z-axis directions correspond to the width, length, and thickness directions of the component supply tape 200. The XYZ Cartesian coordinate system is used to facilitate understanding of the embodiments of the present disclosure and is not intended to limit the present disclosure.

[0015] As shown in FIG. 3, the component supply tape 200 is made up of a carrier tape 202 and a cover tape 204 attached to the carrier tape 202.

[0016] Specifically, in this embodiment, the carrier tape 202 is made of, for example, a resin material and includes embossed portions 202a that each accommodate a component (not shown). The multiple embossed portions 202a are aligned in the tape longitudinal direction (Y-axis direction). The carrier tape 202 also includes multiple feed holes 202b that are aligned in the tape longitudinal direction and engage with sprockets of a tape feeder. In this embodiment, the multiple feed holes 202b are formed along both ends of the tape width direction (X-axis direction).

[0017] The cover tape 204 is made of, for example, a resin material, and is attached to the carrier tape 202 so as to cover the plurality of embossed portions 202a.

[0018] 3, 4A, and 4B, the tape cutting device 10 in this embodiment includes a first blade 12 that cuts both the carrier tape 202 and the cover tape 204, and a second blade 14 that cuts the carrier tape 202 but not the cover tape 204. As will be described in detail later, the component supply tape 200 descends toward the first and second blades 12 and 14, with their cutting edges 12a and 14a facing upward and parallel to each other, causing the first and second blades 12 and 14 to cut the component supply tape 200. The cut ends 202c and 204a become new leading edges of the carrier tape 202 and the cover tape 204. The cover tape 204 extends beyond the cut end 202c of the carrier tape 202, and a cut end 204a is formed in the extended portion. Such cutting allows a tape feeder that transports the component supply tape 200 toward a component mounting device to grasp the extended portion of the cover tape 204 and peel the cover tape 204 from the carrier tape 202 .

[0019] The following describes the tape cutting device 10 that cuts the component supply tape 200.

[0020] 5 is a right side view of the tape cutting device, FIG. 6 is a front view of the tape cutting device, and FIG. 7 is a left side view of the tape cutting device.

[0021] As shown in FIGS. 1, 2, and 5 to 7, the tape cutting device 10 has a tape support mechanism 20 that supports the component supply tape 200 in a fixed state while positioning it.

[0022] Fig. 8 is a perspective view of the tape support mechanism in the tape cutting device, Fig. 9 is a perspective view of the tape support mechanism with the component supply tape fixed thereto, and Fig. 10 is an exploded perspective view of the tape support mechanism separated into a tape holding unit and a blade support unit.

[0023] As shown in Figures 8, 9, and 10, the tape support mechanism 20 includes a blade support unit 22 that supports the first and second blades 12, 14, and a tape holding unit 24 that can be raised and lowered in the tape thickness direction (Z-axis direction) while holding the component supply tape 200.

[0024] FIG. 11 is an exploded perspective view of the blade support unit.

[0025] As shown in FIG. 11, the blade support unit 22 has a block-shaped blade support member 26. The blade support member 26 supports the first blade 12 and the second blade 14 in a parallel state with a gap in the tape longitudinal direction (Y-axis direction), with their cutting edges 12a and 14a facing upward and with the direction in which the cutting edges 12a and 14a extend parallel to the tape width direction (X-axis direction). In this embodiment, the first blade 12 is fixed to one end surface of the blade support member 26 in the tape longitudinal direction via a blade pressing member 28. The second blade 14 is fixed to the other end surface via a blade pressing member 30. The blade support member 26 is fixed to a base plate 32 of the tape cutting device 10, as shown in FIGS. 5 to 7.

[0026] As shown in FIG. 11, the blade support unit 22 also includes a plurality of eccentric pins 34 as cutting edge position adjustment units that adjust the inclination and position of the cutting edge 14a of the second blade 14.

[0027] FIG. 12 is a diagram showing an eccentric pin for adjusting the inclination and position of the cutting edge of the second blade.

[0028] As shown in Figures 11 and 12, the eccentric pin 34 includes a rotation shaft portion 34a rotatably supported in a cylindrical hole 26a formed in the blade support member 26, and a cylindrical cam portion 34b that contacts the lower end 14b of the second blade 14 to support the second blade 14. The center of the shape of the cam portion 34b is offset from the rotation center line C1 of the rotation shaft portion 34a. As a result, by rotating the two eccentric pins 34 about their respective rotation center lines C1, the inclination and position (position in the tape thickness direction (Z-axis direction)) of the cutting edge 14a of the second blade 14 can be changed. As a result, the inclination and position of the cutting edge 14a of the second blade 14 can be adjusted.

[0029] The second blade 14 is replaced according to the size of the component supply tape 200 in the tape width direction (X-axis direction). That is, as shown in FIG. 12, the length L of the cutting edge 14a in the extending direction CE The blade support member 26 is configured so that it can be replaced with a second blade 14 having a different length. CE A blade fixing nut 36 that is movable in the tape width direction and comes into contact with the second blade 14 is provided on the blade support member 26 as a blade fixing part that fixes the position in the tape width direction of each of the second blades 14, which have different lengths.

[0030] 12, the cutting edge 14a of the second blade 14 is adjusted by an eccentric pin 34 so that it is parallel to the upper surface 26b of the blade support member 26 and is positioned below it at a distance D in the tape thickness direction (Z-axis direction), for reasons that will be described later. Distance D is, for example, 0.9 to 1.0 times the thickness of the cover tape 204.

[0031] Fig. 13 is an exploded perspective view of the tape holding unit in the tape support mechanism, and Fig. 14 is a perspective view of the lifting member in the tape holding unit supported by the blade support unit.

[0032] As shown in Figures 10 and 13, the tape holding unit 24 includes a lifting member 40 supported by the blade support unit 22 so as to be movable up and down in the tape thickness direction (Z-axis direction), and a first slide member 42 and a second slide member 44 supported by the lifting member 40 so as to be slidable in the tape width direction (X-axis direction).

[0033] 14, the lifting member 40 is attached to the blade support member 26 of the blade support unit 22 so as to be movable in the tape thickness direction (Z-axis direction). In the present embodiment, the lifting member 40 is U-shaped when viewed in the tape thickness direction and includes side walls 40a and 40b facing each other. The blade support member 26 is disposed between these two side walls 40a and 40b.

[0034] 13 and 14, the lifting member 40 also includes a tape positioning block 46 provided on each of the two side walls 40a, 40b. As shown in Fig. 9, each tape positioning block 46 includes a tape placement surface 46a on which a portion of the component supply tape 200 is placed. Specifically, the portion of the component supply tape 200 between the end on one side (front side) in the tape width direction (X-axis direction) and the embossed portion 202a is placed on the tape placement surface 46a.

[0035] 9, each tape positioning block 46 includes a plurality of positioning pins 48 that engage with the feed holes 202b of the carrier tape 202 of the component supply tape 200 placed on the tape placing surface 46a. The carrier tape 202 is placed on the tape placing surface 46a of each tape positioning block 46, and the feed holes 202b of the carrier tape 202 engage with the positioning pins 48, thereby positioning the component supply tape 200 with respect to the tape holding unit 24. The tape positioning block 46 is detachably provided on the lifting member 40 of the tape holding unit 24, for reasons that will be described later.

[0036] As shown in FIG. 13 , the first slide member 42 is supported by the lifting member 40 so as to be slidable in the tape width direction (X-axis direction). The first slide member 42 also includes a plurality of tape stopper portions 42 a. As the first slide member 42 slides, the plurality of tape stopper portions 42 a are positioned (at tape stop positions) above the portion of the component supply tape 200 placed on the tape positioning block 46, as shown in FIG. 9 . The tape stopper portions 42 a prevent the feed holes 202 b of the carrier tape 202 from coming off the positioning pins 48. As a result, the component supply tape 200 is fixed in a positioned state in the tape holding unit 24. As shown in FIG. 1 , as the first slide member 42 is slid forward of the tape cutting device 10, the plurality of tape stopper portions 42 a move forward from above the positioning block 46 toward the retracted position. As a result, the component supply tape 200 can be removed from the tape holding unit 24.

[0037] In this embodiment, as shown in Fig. 13, the first slide member 42 is provided with a positioning pin 50 in order to stop the multiple tape stopper portions 42a at the tape restraining position and the retracted position. The positioning pin 50 is provided at one end of a first swing member 52 that is provided on the first slide member 42 so as to be swingable about a rotation center line C2 that extends in the tape thickness direction (Z-axis direction). V-shaped notches 40c and 40d that engage with the positioning pin 50 are formed in the lifting member 40. One notch 40c engages with the positioning pin 50 when the tape stopper portions 42a are located at the tape restraining position (see Fig. 9). The other notch 40d engages with the positioning pin 50 when the tape stopper portions 42a are located at the retracted position (see Fig. 1). As shown in FIG. 13, a spring 54 is provided on the first slide member 42 to bias the other end of the first swing member 52 in order to maintain the engagement between the positioning pin 50 and the notches 40c, 40d.

[0038] 13, the second slide member 44 is supported by the lifting member 40 so as to be slidable in the tape width direction (X-axis direction). As shown in Fig. 9, the second slide member 44 has a plurality of tape placement surfaces 44a on which portions of the component supply tape 200 are placed. Specifically, the portion between the end on the other side (rear side) in the tape width direction (X-axis direction) and the embossed portion 202a is placed on the tape placement surface 44a.

[0039] As the second slide member 44 slides in the tape width direction (X-axis direction), the tape placing surface 44a also slides in the tape width direction. That is, the tape placing surface 46a of the tape positioning block 46, which is fixed in position in the tape width direction, and the tape placing surface 44a of the second slide member 44, which is variable in position in the tape width direction, allow the tape support mechanism 20 to support various types of component supply tapes 200 with different sizes in the tape width direction. Note that the tape support mechanism 20 can also support component supply tapes that do not have embossed portions, i.e., component supply tapes that include carrier tape with recessed pockets for storing components formed in the surface to which the cover tape is attached.

[0040] As shown in FIG. 13 , the second slide member 44 is provided with a positioning pin 56 to accommodate component supply tapes 200 of different sizes in the tape width direction (X-axis direction). The positioning pin 56 is provided at one end of a second swing member 58, which is provided on the second slide member 44 so as to be swingable about a rotation center line C3 extending in the tape thickness direction (Z-axis direction). A plurality of V-shaped notches 40e that engage with the positioning pin 56 are formed in the lifting member 40. Each of the plurality of notches 40e is provided at a position corresponding to a component supply tape 200 of different sizes in the tape width direction. The component supply tapes 200 of different sizes in the tape width direction are appropriately supported by the tape placing surface 46a of the tape positioning block 46 and the tape placing surface 44a of the second slide member 44 by engaging the corresponding notch 40e with the positioning pin 56. As shown in FIG. 13, a spring 60 is provided on the second slide member 44 to bias the other end of the second swing member 58 in order to maintain the engagement between the positioning pin 56 and the notch 40e.

[0041] With this tape support mechanism 20, the component supply tape 200 can be cut as shown in FIG. 4B.

[0042] 15 is a perspective view of the tape support mechanism in a state where the component supply tape has been cut. The tape support mechanism 20 shown in FIG. 15 corresponds to the state of the tape cutting device 10 shown in FIG.

[0043] 15, when the tape holding unit 24 supporting the component supply tape 200 descends, the first blade 12 supported by the blade support unit 22 approaches the component supply tape 200 and cuts both the carrier tape 202 and the cover tape 204 in the tape width direction (X-axis direction). At the same time, the second blade 14 cuts only the carrier tape 202 in the tape width direction.

[0044] In this embodiment, the tape holding unit 24 is supported by the blade support unit 22 so as to be freely movable in the tape thickness direction (Z-axis direction). Meanwhile, as shown in Fig. 5, the tape holding unit 24 (its lifting member 40) is biased upward by a spring 62 to prevent the tape holding unit 24 from freely descending. Therefore, in order to cut the component supply tape 200, the tape holding unit 24 must descend against the biasing force of the spring 62.

[0045] As shown in FIGS. 1 and 2, the tape cutting device 10 has a tape pressing mechanism 70 that presses the component supply tape 200 fixed to the tape holding unit 24 of the tape support mechanism 20 against the biasing force of the spring 62.

[0046] Fig. 16 is a perspective view of the tape pressing mechanism in the tape cutting device. Fig. 17 is a perspective view of the tape pressing mechanism seen from a different viewpoint. Figs. 18A to 18C are right side views of the tape cutting device showing the operation of the tape pressing mechanism. Fig. 19 is a perspective view showing the contact surface of the tape pressing member of the tape pressing mechanism. And Fig. 20 is a cross-sectional view taken along line AA in Fig. 19.

[0047] 16, the tape pressing mechanism 70 includes a tape pressing member 72 that contacts the component supply tape 200 and presses down the tape holding unit 24 of the tape support mechanism 20 via the component supply tape 200. As shown in FIGS. 5 to 7, the tape pressing member 72 faces the blade support member 26 in the tape thickness direction (Z-axis direction). Also, as shown in FIGS. 18B and 19, the tape pressing member 72 has a contact surface 72a that contacts the upper surface of the component supply tape 200 (i.e., the cover tape 204).

[0048] When the tape pressure member 72 descends from the state in which the component supply tape 200 is fixed to the tape holding unit 24 as shown in FIG. 18A , its contact surface 72 a comes into contact with the component supply tape 200, as shown in FIG. 18B . When the tape pressure member 72 descends while maintaining its contact surface 72 a in contact with the component supply tape 200, the tape holding unit 24 to which the component supply tape 200 is fixed descends. In this embodiment, as shown in FIG. 2 , the tape placing surface 44 a of the second slide member 44 of the tape holding unit 24 is pressed against the tape pressure member 72 via the component supply tape 200, thereby descending the tape holding unit 24. As shown in FIG. 18C , the tape pressure member 72 descends until the portion of the contact surface 72 a that is not in contact with the component supply tape 200 comes into contact with the upper surface 26 b of the blade support member 26 shown in FIGS. 11 and 12 . That is, the tape pressure member 72 and the blade support member 26 approach each other as closely as possible.

[0049] When the contact surface 72a of the tape pressing member 72 comes into contact with the upper surface 26b of the blade support member 26, as shown in FIG. 15 , the first blade 12 and the second blade 14 complete cutting of the component supply tape 200 in contact with the contact surface 72a. Specifically, the first blade 12 cuts both the carrier tape 202 and the cover tape 204. The second blade 14 cuts only the carrier tape 202. That is, as shown in FIG. 12 , the cutting edge 14a of the second blade 14 is spaced a distance D (0.9 to 1.0 times the thickness t of the cover tape 204) from the upper surface 26b of the blade support member 26 that comes into contact with the contact surface 72a of the tape pressing member 72 in the tape thickness direction (Z-axis direction). Therefore, the cutting edge 14a of the second blade 14 does not contact the contact surface 72a, that is, the cutting edge 14a does not penetrate the cover tape 204, and as a result, the cover tape 204 is not completely cut.

[0050] 15 and 18C, cutting edge 12a of first blade 12 cuts both carrier tape 202 and cover tape 204, and cutting edge 12a passes over the upper surface of component supply tape 200. To prevent contact between cutting edge 12a and contact surface 72a of tape press member 72 that is in contact with the upper surface of component supply tape 200, groove 72b is formed in contact surface 72a, as shown in FIG. 19. Cutting edge 12a of first blade 12 enters groove 72b, thereby preventing contact between cutting edge 12a of first blade 12 and contact surface 72a of tape press member 72.

[0051] 17, the tape pressure mechanism 70 includes a drive mechanism 74 that applies a drive force to the tape pressure member 72 to lower the tape pressure member 72. As described above, the tape holding unit 24 of the tape support mechanism 20 is biased upward by the spring 62. The drive mechanism 74 applies a drive force to the tape pressure member 72 that is capable of moving the tape pressure member 72 linearly toward the tape holding unit 24 against the biasing force of the spring 62. Note that "linear movement" here refers to movement along a linear trajectory.

[0052] The drive mechanism 74 is configured so that a user can manually generate a drive force for the tape pressing member 72. In the case of this embodiment, the drive mechanism 74 is a toggle mechanism, which is a type of force-boosting mechanism.

[0053] As shown in Figures 18A to 18C, the drive mechanism 74, which is a toggle mechanism, includes a power transmission member 76 connected to the tape presser member 72 and a lever 78 as an operating unit operated by the user. The drive mechanism 74 also includes an L-shaped link 80 and a linear link 82 as a power conversion unit that converts the force applied to the lever 78 by the user into a driving force of the power transmission member 76 in the tape thickness direction (Z-axis direction). The drive mechanism 74 also includes a base member 84 that supports the power transmission member 76 and the L-shaped link 80. The base member 84 is fixed to the base plate 32 via a bracket 86. It is possible for an external device to apply force to the lever 78 instead of the user.

[0054] As shown in FIG. 18B , the lever 78 is provided at one end of an L-shaped link 80. The other end of the L-shaped link 80 is supported by a base member 84 so as to be rotatable about a rotation center line C4 extending in the tape longitudinal direction (Y-axis direction). One end of a straight link 82 is connected to one end of a power transmission member 76 extending in the tape thickness direction (Z-axis direction) so as to be rotatable about a rotation center line C5 extending in the tape longitudinal direction. The other end of the straight link 82 is connected to a bent portion of the L-shaped link 80 so as to be rotatable about a rotation center line C6 extending in the tape longitudinal direction. The base member 84 supports the power transmission member 76 so as to be movable in the tape thickness direction.

[0055] 18B, when a user applies force Fin to lever 78, power transmission member 76 moves linearly in the tape thickness direction (Z-axis direction), and a driving force Fout is applied to tape pressing member 72. Driving force Fout is expressed by the following mathematical formula 1.

number

[0056] In Equation 1, L1 is the distance between the position on the lever 78 where the force Fin acts and the rotation center line C6, and L2 is the distance between the rotation center line C6 and the rotation center line C4.

[0057] This drive mechanism 74 (i.e., toggle mechanism) allows the user to use a small amount of force to lower the tape holding unit 24 of the tape support mechanism 20 against the biasing force of the spring 62 via the tape presser member 72. As a result, the user can cut the component supply tape 200. Furthermore, because the tape presser member 72 moves linearly, the drive force Fout is used to cut the component supply tape 200 by the first and second blades 12, 14 without any loss.

[0058] In the present embodiment, the tape pressing member 72 driven by the drive mechanism 74 moves in parallel toward the blade support member 26 of the blade support unit 22 via a guide rod 88, as shown in Fig. 19. The guide rod 88 is provided in the tape pressing member 72. As shown in Figs. 11 and 15, the blade support member 26 is provided with a guide hole 26c that guides the guide rod 88.

[0059] Furthermore, in the present embodiment, when the tape presser member 72 approaches the blade support member 26 to a certain extent, the tape presser member 72 is positioned relative to the blade support member 26 in the tape width direction (X-axis direction) and the tape longitudinal direction (Y-axis direction). Specifically, as shown in Figures 11 and 15, the blade support member 26 is provided with a plurality of positioning pins 90 that protrude in the tape thickness direction (Z-axis direction). As shown in Figure 19, a plurality of positioning holes 72c that engage with the positioning pins 90 are formed in the contact surface 72a of the tape presser member 72.

[0060] The power transmission member 76 of the drive mechanism 74 and the tape pressing member 72 are connected via an elastic member so that the positioning pin 90 and the positioning hole 72c can smoothly engage with each other.

[0061] FIG. 20 is a cross-sectional view taken along line AA in FIG.

[0062] As shown in Figure 20, the power transmission member 76 and the tape pressing member 72 are connected via an intervening member 92. The power transmission member 76 is directly fixed to the intervening member 92. A plurality of disc springs 94 are arranged between the intervening member 92 and the tape pressing member 72. This allows the tape pressing member 72 to tilt slightly relative to the power transmission member 76, making it easier for the positioning pin 90 to enter the positioning hole 72c.

[0063] The disc spring 94 also serves to attenuate the driving force Fout transmitted from the power transmission member 76 to the tape pressing member 72. This prevents the tape pressing member 72 from applying excessive force to the blade support member 26.

[0064] Furthermore, in the present embodiment, the tape pressing mechanism 70 includes a ratchet mechanism 94, as shown in FIG.

[0065] As shown in Figure 17, the ratchet mechanism 94 is made up of a rack 96 that is attached to the bracket 86 and extends in the tape thickness direction (Z-axis direction), and a ratchet pawl 98 that is attached to the tape presser member 72 and engages with the rack 96. As shown in Figure 19, the ratchet pawl 98 is attached to the intervening member 92 so as to be rotatable about a rotation center line C7 that extends in the tape width direction (X-axis direction). The ratchet pawl 98 is pulled by a spring 100 to maintain a fixed posture.

[0066] The ratchet mechanism 94 restricts the movement of the tape pressure member 72 in the opposite direction from when the tape pressure member 72 contacts the component supply tape 200 until the first and second blades 12, 14 cut the component supply tape 200. Specifically, as shown in FIG. 18B , the rack 96 engages with the ratchet pawl 98 immediately after the tape pressure member 72 contacts the component supply tape 200. Then, as shown in FIG. 18C , just before the contact surface 72a contacts the upper surface 26b, the rack 96 and the ratchet pawl 98 are disengaged, allowing the tape pressure member 72 to move upward. In other words, the lever 78 can be moved in the opposite direction. The lever 78 can now move in the opposite direction, allowing the user to know that the contact surface 72a contacts the upper surface 26b, i.e., that cutting of the component supply tape 200 has been completed.

[0067] As described above, the tape holding unit 24 of the tape support mechanism 20 is pushed down by the tape pressing member 72 of the tape pressing mechanism 70. In this embodiment, the tape cutting device 10 has a locking mechanism 102 that limits movement of the tape holding unit 24 in the tape thickness direction (Z-axis direction) so that the tape holding unit 24 will not be lowered by any other means.

[0068] 21A to 21C are diagrams showing the operation of the locking mechanism of the tape holding unit.

[0069] 11 and 21A, the locking mechanism 102 of the tape holding unit 24 includes a hook member 104 that is rotatably mounted on the blade support member 26 around a rotation center line C8 that extends in the tape longitudinal direction (Y-axis direction). As shown in Fig. 21A, the hook member 104 engages with a protrusion 40f provided on the lifting member 40 of the tape holding unit 24, thereby causing the locking mechanism 102 to restrict movement of the tape holding unit 24 in the tape thickness direction (X-axis direction). The hook member 104 is pulled by a spring 106 so as to engage with the protrusion 40f.

[0070] The locking mechanism 102 includes an unlocking member 108 for unlocking the tape holding unit 24, i.e., for releasing the engagement between the hook member 104 and the protrusion 40f of the lifting member 40. The unlocking member 108 is provided on the tape pressing member 72, and extends in the tape height direction (Z-axis direction) toward the hook member 104 provided on the blade support member 26.

[0071] When the tape presser member 72 descends toward the blade support member 26, as shown in FIG. 21B, the tip of the unlocking member 108 comes into contact with the roller 110 provided on the hook member 104. This contact causes the hook member 104 to rotate, disengaging the hook member 104 from the protrusion 40f of the elevating member 40. The size of the unlocking member 108 in the tape height direction (Z-axis direction) is set so that the disengagement occurs at least before the contact surface 72a of the tape presser member 72 comes into contact with the component supply tape 200. As a result, immediately after the contact surface 72a of the tape presser member 72 comes into contact with the component supply tape 200, the tape presser member 72 can push the tape holding unit 24 forward until it comes into contact with the blade support member 26, as shown in FIG. 21C.

[0072] With this locking mechanism 102, as shown in FIG. 8, the first blade 12 and the second blade 14 can be protected by the lifting member 40 of the tape holding unit 24 until cutting of the component supply tape 200 begins.

[0073] As shown in FIG. 1, the components of the locking mechanism 102, such as the hook member 104, are covered and protected by a cover member 112.

[0074] In addition to the locking mechanism 102, the tape cutting device 10 has another locking mechanism 114.

[0075] 17, the locking mechanism 114 includes a hook member 116 rotatably mounted on the bracket 86, and a pole member 118 mounted on the tape presser member 72 and engaging with the hook member 116. The hook member 116 can engage with the pole member 118 when the tape presser member 72 is closest to the blade support member 26, i.e., when the contact surface 72a of the tape presser member 72 is in contact with the upper surface 26b of the blade support member 26. This locking mechanism 114 allows the first and second blades 12, 14 to be protected by the tape presser member 72 during storage or transportation of the tape cutting device 10.

[0076] 4B , the component supply tape 200 is cut by the tape cutting device 10 so that the cut end 204a of the cover tape 204 is positioned in front of the cut end 202c of the carrier tape 202. In addition, in the present embodiment, the carrier tape 202 is cut by the second blade 14 so that one feed hole 202b of the carrier tape 202 is separated.

[0077] FIG. 22 is a top view showing the component supply tape positioned in the tape cutting device.

[0078] 22, in this embodiment, four positioning pins 48 (48A to 48D) of the component supply tape 200 engage with the feed holes 202b of the carrier tape 202. These positioning pins 48A to 48D are provided on the tape holding unit 24 (tape positioning block 46) so as to sandwich the cutting edge 14a of the second blade 14 when viewed in the tape thickness direction (Z-axis direction).

[0079] In order for one feed hole 202b of the carrier tape 202 to be cut by the cutting edge 14a of the second blade 14, the one feed hole 202b needs to be positioned above the cutting edge 14a of the second blade 14. Therefore, when viewed in the tape thickness direction (Z-axis direction), the two positioning pins 48A, 48B are positioned with respect to the cutting edge 14a of the second blade 14 so that the one feed hole 202b overlaps with the cutting edge 14a of the second blade 14. For this purpose, an adjustment jig is used to adjust the position of the positioning pins.

[0080] Fig. 23 is a top perspective view of an adjustment jig for the tape cutting device. Fig. 24 is a bottom perspective view of the adjustment jig for the tape cutting device. Fig. 25 is a perspective view of the tape support mechanism with the adjustment jig attached. And Fig. 26 is a cross-sectional view taken along line BB shown in Fig. 25.

[0081] As shown in FIGS. 23 and 24, the adjustment jig 150 has a blade holding portion 150a that holds the second blade 14, and pin engaging portions 150b to 150e that engage with the positioning pins 48A to 48D of the tape cutting device 10.

[0082] In this embodiment, blade holding portion 150a is a groove that holds second blade 14 in the blade thickness direction (i.e., the tape longitudinal direction (Y-axis direction)) and extends in the blade length direction (i.e., the tape width direction (X-axis direction)). In this embodiment, as shown in FIG. 26, blade holding portion 150a holds second blade 14 in the blade thickness direction together with a portion of blade support member 26 that supports second blade 14 in the blade thickness direction. Note that blade holding portion 150a is not limited to a groove. For example, blade holding portion 150a may be a clip that can clamp second blade 14 in the blade thickness direction.

[0083] In this embodiment, the pin engagement portions 150b to 150e are holes into which the positioning pins 48A to 48D enter. The pin engagement portions 150b to 150e are provided on a seating surface 150f that can seat on the tape placing surface 46a of the tape positioning block 46. Note that the pin engagement portions 150b to 150e are not limited to holes. For example, the pin engagement portions 150b to 150e may be protrusions that come into contact with the outer circumferential surfaces of the positioning pins 48A to 48D in the tape longitudinal direction (Y-axis direction).

[0084] 26, pin engagement portions 150b, 150c are disposed at predetermined distances S1, S2 in the blade thickness direction (i.e., the tape longitudinal direction (Y-axis direction)) from cutting edge 14a of second blade 14 held by blade holding portion 150a. These predetermined distances S1, S2 correspond to the distances between cutting edge 14a and positioning pins 40A, 40B at which another feed hole 202b of carrier tape 202 whose feed hole 202b engages with positioning pins 48A, 48B can overlap with cutting edge 14a of second blade 14, as shown in FIG. In other words, when the second blade 14 is in a position where it can be held by the blade holding portion 150a of the adjustment jig 150 and the positioning pins 48A, 48B are in a position where they can engage with the pin engagement portions 150b, 150c, another feed hole 202b in the carrier tape 202 whose feed hole 202b is engaged with the positioning pin 48A, 48B overlaps with the cutting edge 14a of the second blade 14 when viewed in the tape thickness direction (Z-axis direction).

[0085] As shown in Fig. 25, before blade holding portion 150a holds second blade 14, positioning pins 48A and 48B, i.e., tape positioning block 46, are allowed to move freely. In the case of this embodiment, fixing bolt 120 shown in Fig. 22 for fixing positioning block 46 to lifting member 40 is removed. With positioning block 46 in a freely movable state, second blade 14 is held by blade holding portion 150a, and positioning pins 48A to 48D are inserted into pin engagement portions 150b to 150e of adjustment jig 150.

[0086] The pin engagement portions 150d, 150e that engage with the positioning pins 48C, 48D are elongated holes that are long in the blade thickness direction (i.e., the tape longitudinal direction (Y-axis direction)), and they only regulate the positions of the positioning pins 48C, 48D in the blade length direction (i.e., the tape width direction (X-axis direction)), and do not regulate the positions in the blade thickness direction. This makes it easier for the four positioning pins 48A to 48D to engage with the corresponding pin engagement portions 150b to 150e, respectively.

[0087] By periodically adjusting the positions of the positioning pins 48A, 48B relative to the cutting edge 14a of the second blade 14 using such an adjustment jig 150, the cutting edge 14a of the second blade 14 can cut one feed hole 202b in the carrier tape 202.

[0088] As a result, the teeth of the sprocket of the parts feeder are more likely to engage with the feed holes of the carrier tape 202. Specifically, if the sprocket is located deep inside the tape feeder, an operator must manually feed the leading edge (cut end) of the component supply tape toward the sprocket. In this case, the leading feed hole 202b is more likely to engage with the sprocket teeth if it is split. When the split feed hole 202b engages with the sprocket teeth, the following feed holes 202b are more likely to engage with the sprocket teeth.

[0089] According to the present embodiment as described above, it is possible to provide a tape cutting device for cutting a component supply tape that can be used anywhere.

[0090] Although the present invention has been described above with reference to the above-mentioned embodiments, the present disclosure is not limited to the above-mentioned embodiments.

[0091] For example, in the case of the above-described embodiment, as shown in FIG. 18c , the user's force Fin is amplified by the drive mechanism 74, which is a type of toggle mechanism, and converted into a drive force Fout in the tape thickness direction (Z-axis direction) of the tape presser member 72. This causes the tape presser member 72 to move linearly toward the blade support member 26. However, the embodiments of the present disclosure are not limited to this drive mechanism 74. In other words, any drive mechanism can be used as long as it can move the tape presser member 72 linearly toward the blade support member 26 by the user's force.

[0092] In the above-described embodiment, the tape pressure member 72 and the tape holding unit 24 are movable in the tape thickness direction (Z-axis direction) of the component supply tape 200 held by the tape holding unit 24, and the blade support member 26 is fixed. However, the embodiment of the present disclosure is not limited to this. For example, the tape holding unit 24 may be fixed, and the tape pressure member 72 and the blade support member 26 may move toward the component supply tape 200 held by the tape holding unit 24. In this case, the tape pressure member 72 comes into contact with the component supply tape 200 before the first and second blades 12 and 14 supported by the blade support member 26 come into contact with the component supply tape 200.

[0093] In other words, a tape cutting device according to an embodiment of the present disclosure is, in a broad sense, a tape cutting device that cuts a component supply tape including a carrier tape and a cover tape attached to the carrier tape, and includes a blade with a cutting edge, a blade support member that supports the blade, a tape pressing member that faces the cutting edge of the blade across the component supply tape and has a contact surface that comes into contact with the cover tape, and a drive mechanism that generates a driving force that moves one of the blade support member and the tape pressing member linearly toward the other, causing the blade to cut the component supply tape, and the drive mechanism includes a power transmission member connected to one of the blade support member and the tape pressing member, an operating unit, and a power conversion unit that converts the force applied to the operating unit into the driving force in the opposing direction of the blade support member and the tape pressing member. [Industrial Applicability]

[0094] The present disclosure is applicable to any tape cutting device that cuts a component supply tape. [Explanation of symbols]

[0095] 10 Tape cutting device 12 Blade (1st Blade) 14 Blade (Second Blade) 26 Blade support member 72 Tape holding member 74 Drive mechanism 76 Power transmission components 78 Operating part (lever) 80 Power conversion unit (L-type link) 82 Power conversion unit (straight link) 200 Parts Supply Tape

Claims

1. 1. A tape cutting device that cuts a component supply tape including a carrier tape and a cover tape attached to the carrier tape, a blade having a cutting edge; a blade support member that is fixedly provided and supports the blade; a movable tape pressing member that faces the cutting edge of the blade across the component supply tape and has a contact surface that comes into contact with the cover tape; a drive mechanism that generates a drive force that moves the tape pressing member linearly toward the blade support member, causing the blade to cut the component supply tape; a tape holding portion that holds the component supply tape so that the tape thickness direction coincides with the opposing direction of the blade support member and the tape pressing member, The drive mechanism a power transmission member connected to the tape pressing member; Controls, and a power conversion unit that converts a force applied to the operation unit into the driving force in the opposing direction, The tape holding portion is movable in the opposing direction, The tape pressing member pushes the tape holding portion forward, causing the component supply tape held by the tape holding portion to approach the blade and be cut.

2. 2. The tape cutting device according to claim 1, wherein the drive mechanism is a power booster mechanism.

3. 3. The tape cutting device according to claim 2, wherein the force multiplier mechanism is a toggle mechanism.

4. The blades include a first blade that cuts both the carrier tape and the cover tape, and a second blade that cuts the carrier tape; the blade support member includes a cutting edge position adjustment portion that adjusts the position of the cutting edge of the second blade in the opposing direction, 4. A tape cutting device as described in any one of claims 1 to 3, wherein the position of the cutting edge of the second blade in the opposing direction is adjusted by the cutting edge position adjustment unit so that the cutting edge of the second blade does not penetrate the cover tape when the blade support member and the tape pressing member are closest to each other.

5. 5. The tape cutting device according to claim 1, wherein the blade support member is movable in the direction of extension of the cutting edge of the blade and includes a blade fixing portion that contacts the blade to fix the position of the blade in the direction of extension.

6. 2. The tape cutting device according to claim 1, wherein the tape holding portion includes a positioning pin that engages with a feed hole in the component supply tape, a first mounting surface on which one end of the component supply tape in the tape width direction is placed, and a second mounting surface on which the other end is placed.

7. the tape holding portion includes a slide member that slides in the tape width direction, The tape cutting device of claim 6 , wherein the slide member comprises the second mounting surface.

8. 8. The tape cutting device according to claim 7, wherein the positioning pin is provided on the first mounting surface.

9. 9. The tape cutting device according to claim 8, wherein the tape holding portion includes a tape stopper portion that is movable above a portion of the component supply tape placed on the first placement surface with a feed hole engaged with the positioning pin.

10. 2. The tape cutting device according to claim 1, further comprising a first locking mechanism that limits movement of the tape holding portion in the opposing direction at least until the contact surface of the tape pressing member comes into contact with the component supply tape held by the tape holding portion.

11. 11. The tape cutting device of claim 10, wherein the first locking mechanism includes a hook member rotatably mounted on the blade support member and engaging with the tape holding portion, and a lock release member mounted on the tape pressing member and contacting the hook member to rotate the hook member, thereby releasing the engagement between the hook member and the tape holding portion.

12. 2. The tape cutting device according to claim 1, further comprising a ratchet mechanism that limits movement of the tape pressing member in the opposite direction during movement of the tape pressing member from the time the contact surface of the tape pressing member comes into contact with the component supply tape held by the tape holding portion until the blade cuts the carrier tape.

13. 2. The tape cutting device according to claim 1, further comprising a second locking mechanism that limits movement of the tape pressing member when the blade support member and the tape pressing member are at their closest position.

Images