JP6168715B1 - Carrier tape traveling device and taping device - Google Patents

Abstract

A carrier tape running device and a taping device that can accurately position a pocket of a carrier tape in a short time. A carrier tape in which a plurality of pockets 101 for storing electronic components 104 are provided in the longitudinal direction, and a plurality of holes 102 in which protrusions 43 of sprockets 41 and 42 are hooked are arranged in parallel to the rows of pockets 101. 100 is a carrier tape traveling device 1 that travels in the longitudinal direction, and a pair of holes 102 located on the upstream side and the downstream side in the traveling direction across the center of each pocket 101 that has reached the delivery position 6 of the electronic component 104. In addition, at least a pair of the first pin 81 and the second pin 82 to be inserted / removed, and the first pin 81 and the second pin 82 are moved in a direction crossing the longitudinal direction of the carrier tape 100. And a drive mechanism 83 that is inserted into and removed from the pair of holes 102. [Selection] Figure 3

Description

  The present invention relates to a carrier tape traveling device and a taping device used for accommodating electronic components in a carrier tape.

  Electronic components such as semiconductor elements are separated into individual pieces through various assembly processes such as dicing, mounting, bonding, and sealing, and then various processes such as inspection are performed. This process is generally performed by an electronic component inspection apparatus called a test handler. In this method, the main table is rotated, the electronic components of the transport unit are held by a holding unit such as a suction nozzle, and transported to each inspection apparatus for inspection. The electronic component that has been inspected is accommodated in the pocket of the carrier tape in the taping device.

  The taping device is a device that intermittently runs the carrier tape toward a reel that winds up the carrier tape (see, for example, Patent Document 1). As for the carrier tape, the pocket is embossed along the longitudinal direction. While the taping device stops the carrier tape, a holding device such as a manipulator puts the electronic component in the pocket. The taping device seals the electronic component accommodated in the pocket by stacking and sealing the sealing tape on the carrier tape.

JP 2007-137426 A

  The taping device as described above includes two sprockets arranged at intervals. Then, the carrier tape is caused to travel by hooking the projections of the two sprockets into a hole provided in the carrier tape between the two sprockets and rotating the sprocket by a servo motor. However, the position in the longitudinal direction of the pocket of the carrier tape does not stabilize at a fixed position with respect to the position where the holding device inserts the electronic component, and the electronic component and the inner wall of the pocket contact or the electronic component does not fit in the pocket. There was no case.

  In order to cope with this, the position of the pocket of the carrier tape is detected by imaging with a camera from directly above, and when the position deviates from the reference position, the carrier tape is caused to travel by a positioning mechanism that drives in the XY directions. The position was corrected by moving each unit. However, it takes time for processing to detect the position with the camera, calculate the amount of deviation from the reference position, and move the unit by the amount of deviation. In addition, in order to accurately correct a minute shift amount, it has been difficult to move a relatively heavy unit with high accuracy by a positioning mechanism.

  An object of the present invention is to provide a carrier tape running device and a taping device that can accurately position a pocket of a carrier tape in a short time.

  In order to solve the above-mentioned problems, the present invention provides a carrier tape in which a plurality of pockets for storing electronic components are provided in the longitudinal direction, and a plurality of holes on which sprocket projections are hooked are arranged in parallel to the row of pockets. Is a carrier tape traveling device that travels in the longitudinal direction, and is inserted into and removed from a pair of holes positioned on the upstream side and the downstream side in the traveling direction across the center of the pocket that has reached the transfer position of the electronic component. At least a pair of pins, and a drive mechanism for inserting / removing the pair of pins into / from the pair of holes by moving the pair of pins in a direction crossing a longitudinal direction of the carrier tape.

  One of the pair of pins is a first pin having a cylindrical shape, and the other of the pair of pins is a circular column with a circular cross section and a second pin inserted into the hole from a thin tip. There may be.

  The second pin may be provided downstream of the first pin in the traveling direction.

  The distance between the central axes of the pair of pins may be longer than the distance between the centers of the pair of holes while allowing the tip to be inserted into the pair of holes.

  The pair of pins may be arranged at intervals that extend the inserted pair of holes in the longitudinal direction of the carrier tape.

  You may have a tension | tensile_strength provision part which provides the tension | tensile_strength of a running direction to the said carrier tape in the state which the said pair of pin was inserted in the said pair of hole.

  The electronic device may include a holding device that accommodates the electronic component in the pocket, and the drive mechanism may insert the pair of pins into the pair of holes before the electronic component is accommodated in the pocket.

  In the taping device of the present invention, a plurality of pockets for storing electronic components are provided in the longitudinal direction, and a carrier tape in which a plurality of holes through which the sprocket projections are hooked are arranged in parallel to the row of pockets is provided in the longitudinal direction. A taping device for traveling, at least a pair of pins respectively inserted into and removed from a pair of holes positioned on the upstream side and the downstream side in the traveling direction across the center of the pocket that has reached the transfer position of the electronic component; A drive mechanism for inserting and removing the pair of pins in the direction intersecting the longitudinal direction of the carrier tape, and a sprocket for hooking and running the carrier tape, and a motor for rotating the sprocket A reel on which a sealing tape to be attached to the carrier tape is wound, and the running of the pair of pins It is provided downstream in the direction, moves so as to be able to contact and separate from the traveling path of the carrier tape, sandwiches the carrier tape with the seal tape pulled out from the reel, and attaches the seal tape to the carrier tape. A pair of blocks to be worn, pulling out the seal tape from the reel, approaching a pressing roller to a travel path of the carrier tape, and bringing the pair of blocks closer to each other. It is characterized by sealing.

  According to the present invention, the pocket of the carrier tape can be accurately positioned in a short time.

It is a schematic diagram which shows the structure and operation | movement of a carrier tape traveling apparatus. It is a perspective view which shows a 1st pin and a 2nd pin. It is a top view which shows a carrier tape. It is a schematic diagram which shows the relationship between the 1st pin, the 2nd pin, and the hole of a carrier tape. It is a schematic diagram which shows the insertion operation | movement to the hole of the carrier tape of the 1st pin and the 2nd pin, and the accommodation operation | movement to the pocket of an electronic component. It is a schematic diagram which shows the insertion operation | movement to the hole of the carrier tape of the 1st pin and the 2nd pin, and the accommodation operation | movement to the pocket of an electronic component, The left side is a top view, The right side is a side view. It is a top view which shows the other aspect of a carrier tape. It is a top view which shows the other aspect of a carrier tape.

A carrier tape traveling device according to an embodiment of the present invention will be described in detail with reference to the drawings.
[Constitution]
(Basic configuration)
With reference to FIG.1 and FIG.2, the basic structure of the carrier tape traveling apparatus 1 of embodiment is demonstrated. FIG. 1 is a schematic diagram showing the configuration of the carrier tape traveling device 1. FIG. 2 is a plan view of the carrier tape 100. The carrier tape traveling device 1 is configured by a base 11 fixedly mounted on a gantry installed on an installation surface. The carrier tape running device 1 runs a carrier tape 100 for housing the electronic component 104 in the pocket 101 in the longitudinal direction.

  Although not shown, the traveling path of the carrier tape 100 is formed between a pair of linear side guides. The width of the travel path is defined by the distance between the side guides slightly wider than the carrier tape 100. Further, the travel route is divided into the first half of the travel route on the upstream side in the travel direction and the second half of the travel route on the downstream side with the sealing portion 2 interposed therebetween. Further, although not shown, a bottom guide that defines the bottom of the travel path is provided at a position facing the bottom surface of the carrier tape 100.

  The carrier tape traveling device 1 of the present embodiment functions as a taping device. The carrier tape travel device 1 includes a seal tape reel 3 around which the seal tape 105 is wound, and a sealing portion 2. As the taping device, the carrier tape 100 travels toward the reel 200 while the seal tape reel 3 Then, the sealing tape 105 is pulled out, and the sealing tape 105 is attached to the carrier tape 100.

  The carrier tape traveling device 1 includes two sprockets 41 and 42. The two sprockets 41 and 42 are disks having the same diameter and having protrusions 43 protruding along the circumferential surface. The sprockets 41 and 42 are connected to the output shafts of the corresponding motors 51 and 52 through timing belts 51a and 52a, respectively, and rotate intermittently at the same circumferential direction, the same rotation amount, and the same timing.

  A carrier tape 100 is stretched between the sprockets 41 and 42. As shown in FIG. 2, the carrier tape 100 is a belt-like member in which a plurality of pockets 101 for storing the electronic components 104 are provided in the longitudinal direction. Each pocket 101 is a substantially rectangular parallelepiped-shaped depression, and is formed at equal intervals. The carrier tape 100 has a plurality of holes 102 in which the projections 43 of the sprockets 41 and 42 are hooked in parallel to the row of pockets 101. That is, a plurality of holes 102 are arranged in the longitudinal direction beside the plurality of pockets 101 arranged in the longitudinal direction. Each hole 102 is circular and formed at equal intervals. In the example of FIG. 2, a pair of holes 102 are arranged on the upstream side and the downstream side in the traveling direction across the center of each pocket 101. In the present embodiment 101, the holes 102 are disposed at corresponding positions between the pockets 101.

  The carrier tape 100 is made of a material that expands and contracts when tension is applied. For example, the carrier tape 100 is made of a synthetic resin. For this reason, while the carrier tape 100 is running, the positions of the pocket 101 and the hole 102 are changed due to expansion and contraction. Ideally, the intervals between the pockets 101, the intervals between the holes 102, and the positional relationship between the pockets 101 and the holes 102 are constant. However, an error may occur in manufacturing, and it is preferable that the error is within an allowable tolerance range.

  The protrusions 43 of both the sprockets 41 and 42 mesh with the holes 102. The sprockets 41 and 42 are rotated by hooking the protrusions 43 into the holes 102 to cause the carrier tape 100 to run in the longitudinal direction. The position of the traveling carrier tape 100 in the width direction is basically defined by the protrusion 43. The width direction is a horizontal direction orthogonal to the longitudinal direction of the carrier tape 100. The diameter of the protrusion 43 is slightly smaller than the hole 102 of the carrier tape 100. Both sprockets 41 and 42 are arranged on the same vertical plane, and their rotation axes are parallel and have the same height. Therefore, the carrier tape 100 runs to the reel 200 side while keeping the extending direction horizontal.

  The rotation pitch of the motors 51 and 52 corresponds to the arrangement interval of the pockets 101. That is, the motors 51 and 52 stop the pocket 101 at a common stop position. One of the common stop positions is set at the transfer position 6 of the electronic component 104. Note that the sprocket 42 rotated by the motor 51 functions as a tension applying unit, as will be described later.

  As shown in FIG. 1, a holding device 61, which will be described later, is present directly above the delivery position 6 so as to be able to move up and down. The carrier tape traveling device 1 as a taping device sequentially accommodates the electronic components 104 to be detached by the holding device 61 by sequentially matching the pockets 101 to the delivery position 6.

  The sealing unit 2 includes a pair of blocks, that is, a heater block 21 and a base block 22. The heater block 21 and the base block 22 are arranged to face each other across the travel route of the carrier tape 100. The heater block 21 presses the carrier tape 100 from above the travel path of the carrier tape 100, and the base block 22 presses the carrier tape 100 from below the travel path of the carrier tape 100. The heater block 21 moves so as to be in contact with or separated from the traveling path of the carrier tape 100.

  A sealing tape 105 is supplied to the sealing unit 2 so as to overlap the carrier tape 100. The heater block 21 and the base block 22 are pressed to bring the seal tape 105 and the carrier tape 100 into pressure contact, and the heater block 21 further supplies heat to the pressure contact surfaces of the seal tape 105 and the carrier tape 100.

  The sealing tape reel 3 pulls out the sealing tape 105 toward the carrier tape 100 as a taping device. The seal tape reel 3 is positioned above the travel path of the carrier tape 100 and includes a motor 31 and a pressing roller 32.

  The motor 31 rotates the seal tape reel 3 via the timing belt. The pressing roller 32 is positioned in the vicinity of the travel path of the carrier tape 100 and guides the seal tape 105 to the carrier tape 100.

  The pressing roller 32 moves so as to be able to approach or leave the traveling path of the carrier tape 100. That is, the pressing roller 32 approaches the traveling path of the carrier tape 100 and presses the seal tape 105 against the carrier tape 100.

(Positioning part)
Next, the positioning part 8 of the carrier tape traveling device 1 as described above will be described with reference to FIGS. 3 and 4 in addition to FIG. The positioning unit 8 is provided in the first half of the travel route. The positioning unit 8 includes a pair of pins 81 and 82 and a drive mechanism 83. The pair of pins 81 and 82 are members that are respectively inserted into and removed from the pair of holes 102 positioned on the upstream side and the downstream side in the traveling direction across the center of the pocket 101 at the transfer position 6. The pair of holes 102 of the present embodiment are two holes 102 closest to each pocket 101. A pair of holes 102 corresponding to each pocket 101 is common to the adjacent pockets 101.

  One of the pair of pins 81 and 82 is a cylindrical first pin 81 as shown in FIG. The diameter of the first pin 81 is slightly smaller than the diameter of the hole 102. This is to allow the pair of pins 81 and 82 to be inserted with certainty by allowing for a margin and allowance for the interval between the holes 102 and allowing a margin. The other of the pair of pins 81 and 82 is a second column 82 that is circular in cross section and has a tapered column shape and is inserted into the hole 102 from a thin tip. The second pin 82 of the present embodiment has a truncated cone whose diameter decreases toward the tip, at the tip of a cylinder having the same diameter as the first pin 81. Hereinafter, the cylindrical portion of the second pin 82 is referred to as a body portion 82a, and the truncated cone portion is referred to as a tapered portion 82b. The second pin 82 is provided downstream of the first pin 81 in the traveling direction. The size and interval of the first pin 81 and the second pin 82 will be described later.

  The drive mechanism 83 is a mechanism that allows the first pin 81 and the second pin 82 to be inserted into and removed from the pair of holes 102 by moving in the direction intersecting the longitudinal direction of the carrier tape 100. The drive mechanism 83 of this embodiment reciprocates the first pin 81 and the second pin 82 in a direction orthogonal to the plane of the carrier tape 100. The first pin 81 and the second pin 82 have the same axial length and are driven in parallel. More specifically, the first pin 81 and the second pin 82 are supported by a common support base 84 as shown in FIG. The support base 84 is a rectangular parallelepiped block. The bottom surfaces of the first pin 81 and the second pin 82 are fixed upright on the horizontal top surface of the support base 84. The drive mechanism 83 moves the support base 84 up and down to insert and remove the first pins 81 and the second pins 82 into and from the pair of holes 102 at the same time. For example, a cylinder is used as the drive mechanism 83. However, any mechanism can be used as long as the first pin 81 and the second pin 82 can be inserted into and removed from the pair of holes 102, such as an electromagnetic solenoid, a servo motor, and a cam mechanism.

  Next, the setting of the diameters of the first pin 81 and the second pin 82 and the distance between the central axes will be described. It is conceivable that the diameter of the first pin 81 and the diameter of the body portion 82 a of the second pin 82 are about 90 to 80% with respect to the diameter of the hole 102. This is to increase both the probability of insertion into the hole 102 and the accuracy of positioning described later. For example, when the diameter of the hole 102 is 1.0 mm, it is preferable that the diameter of the first pin 81 and the diameter of the body portion 82a of the second pin 82 be 0.8 mm.

  The interval between the central axes of the first pin 81 and the second pin 82 is an interval that can be inserted into the pair of holes 102. In addition, a case where the distance between the central axes of the first pin 81 and the second pin 82 is set to be equal to or smaller than the distance between the centers of the pair of holes 102 and a case where the distance between the centers of the pair of holes 102 is longer. The latter is preferred. Furthermore, in the latter case, it is more preferable to arrange the pair of inserted holes 102 at intervals that extend the interval in the longitudinal direction of the carrier tape 100. Each case will be described with reference to FIG.

  First, as described above, the diameter of the first pin 81 and the diameter of the body portion 82 a of the second pin 82 are smaller than the diameter of the hole 102. Therefore, as shown in FIG. 4A, when the distance d between the central axes of the first pin 81 and the second pin 82 is equal to the distance D between the central axes of the pair of holes 102, One or both of the first pin 81 and the second pin 82 may not contact the hole 102, and the carrier tape 100 may not be stretched. For example, as shown in FIG. 4A, when the centers of the first pin 81 and the second pin 82 coincide with the centers of the pair of holes 102, the first pin 81 and the second pin 82 are provided. A gap c is formed between the hole 102 and the hole 102. However, in actuality, one of the first pin 81 and the second pin 82 is closer to the hole 102 than the center is exactly aligned due to the tolerance of the position of the hole 102 and the expansion and contraction of the carrier tape 100. There is a high possibility of contact. Even in such a case, since the position of the pocket 101 is restricted to the range in which the hole 102 moves by the gap c, the pocket 101 is positioned within this range. For this reason, in this case, the gap c is preferably as narrow as possible.

  However, even if the gap c is narrowed, the pocket 101 may move within this range. Therefore, in order to further stabilize the position of the pocket 101, the sprocket 42 is rotated and the carrier tape 100 is slightly pulled in the traveling direction. This pull length is, for example, about 5 to 20% of the diameter of the hole 102. Then, as shown in FIG. 4B, the edge of the hole 102 hits the upstream edge of the first pin 81 and the second pin 82 in the traveling direction. Tension is applied and the position of the pocket 100 is determined. The same applies to the case where the distance d between the central axes of the first pin 81 and the second pin 82 is shorter than the distance D between the central axes of the pair of holes 102.

  That is, when the distance d ≦ the distance D, the tension in the traveling direction is applied to the carrier tape 100 by the tension applying unit in a state where the first pin 81 and the second pin 82 are inserted into the pair of holes 102. Is preferred.

  Next, as shown in FIG. 4C, the distance d between the central axes of the first pin 81 and the second pin 82 is made longer than the distance D between the central axes of the pair of holes 102, and Consider a case where both the first pin 81 and the second pin 82 are in positions where they contact the pair of holes 102. In this case, the insertion of the first pin 81 and the second pin 82 stretches the carrier tape 100 sandwiching the pocket 101, so that the position of the pocket 100 is determined. For this reason, in such a case, the work of pulling the carrier tape 100 in the traveling direction by the sprocket 42 can be omitted. In FIG. 4C, the distance between the pair of holes 102 remains D, but the distance D actually extends slightly due to contact with the first pin 81 and the second pin 82. ing.

  However, even if the distance d between the central axes of the first pin 81 and the second pin 82 is longer than the distance D between the central axes of the pair of holes 102, the first pin 81 and the second pin 82 If both pins 82 do not contact the hole 102 or only one contacts the hole 102, the carrier tape 100 may not be stretched. In such a case, the carrier tape 100 is pulled in the traveling direction by the sprocket 42 as described above. Then, as shown in FIG. 4D, the carrier tape 100 is extended by α, and the edge of the hole 102 is formed on the upstream edge of the first pin 81 and the second pin 82 in the traveling direction. Therefore, a tension is applied between the pair of holes 102, and the position of the pocket 100 is determined.

  That is, when the distance d> the distance D, the first pins 81 and the second pins 82 are arranged at intervals that extend the pair of inserted holes 102 in the longitudinal direction of the carrier tape 100. In some cases, the work of the tension applying unit can be omitted. Even when the distance d> the distance D, the first pin 81 and the second pin 82 are arranged at an interval that extends the pair of inserted holes 102 in the longitudinal direction of the carrier tape 100. If not, it is preferable to apply tension by the tension applying section. However, even if the first pin 81 and the second pin 82 are arranged at intervals that extend the pair of inserted holes 102 in the longitudinal direction of the carrier tape 100, the tension applied by the tension applying unit By providing the above, the carrier tape 100 may be stretched more reliably and the pocket 101 may be positioned.

  As described above, it is preferable that the center of the pocket 101 positioned by the positioning unit 8 coincides with the transfer position 6.

(Holding device)
A holding device 61 that houses the electronic component 104 in the pocket 101 of the carrier tape 100 will be described with reference to FIGS. 1 and 5. The holding device 61 is a device that holds one electronic component 104 at a time. The holding device 61 is, for example, a suction nozzle that extends in the vertical direction below a transfer device (not shown).

  The suction nozzle is a hollow cylinder having an opening at the lower end. The inside of the suction nozzle communicates with a pneumatic circuit including a vacuum generator (not shown), a solenoid valve, and the like. For this reason, the suction nozzle sucks the electronic component 104 at the tip when the negative pressure is generated by the vacuum generator, and separates the electronic component 104 from the tip when the vacuum break or positive pressure is generated.

  The holding device 61 is provided so as to be movable in the vertical direction by a Z-axis mechanism (not shown). As the Z-axis mechanism, various types such as a cylinder, a cam mechanism using a cam and a spring, and the like can be applied.

  The transport device provided with the holding device 61 is, for example, a turntable that intermittently rotates by a predetermined angle around the rotation axis. A plurality of holding devices 61 are arranged around the rotation axis of the turntable at the same interval as the interval of intermittent rotation. At a stop position around the turntable, a processing unit that performs various processes on the electronic component 104 is disposed. The conveyance device conveys the electronic component 104 by intermittently rotating the turntable while holding the electronic component 104 by the holding device 61. At each stop position in the intermittent rotation, processing by various processing units 4 and accommodation of the carrier tape 100 in the pocket 101 are performed.

(Control device)
The carrier tape traveling device 1 is controlled by the control device 7. The control device 7 includes a motor that rotates the transport device, the motors 31, 51, and 52, a drive mechanism 83 that drives the first pin 81 and the second pin 82, a Z-axis mechanism that raises and lowers the holding device 61, The operation amount, operation speed, and operation timing are controlled by sending electrical signals to the vacuum generators and solenoid valves of each pneumatic circuit.

  The control device 7 has an input device and a display device. The input device is a device such as a switch, a touch panel, a keyboard, and a mouse for an operator to input information and instructions necessary for the processing of the present embodiment. The display device is a device such as a display, a lamp, and a meter for an operator to check the state of the present embodiment.

  The control device 7 intermittently rotates the motors 51 and 52 to intermittently feed the carrier tape 100 to the reel 200 side and stop the empty pockets 101 to the delivery position 6 in order. In accordance with this stop timing, the drive mechanism 83 and the Z-axis mechanism are operated, the first pin 81 and the second pin 82 are inserted and removed, and the holding device 61 is moved up and down.

  However, the control device 7 includes the drive mechanism 83 and the Z so that the first pin 81 and the second pin 82 are inserted into the pair of holes 102 before the holding device 61 accommodates the electronic component 104 in the pocket 101. Control the shaft mechanism. Such control can be realized by setting the movement stroke, start timing, and movement speed of the holding device 61, the first pin 81, and the second pin 82. For example, it is conceivable to delay the start timing of the holding device 61 by making the movement strokes of both the same. It is also conceivable to shorten the movement strokes of the first pin 81 and the second pin 82 by making the start timings of both the same. It is also possible to adjust the moving speed of both. In addition, when tension | tensile_strength is provided to the carrier tape 100 by a tension | tensile_strength provision part, after giving tension | tensile_strength, it controls so that the holding device 61 accommodates the electronic component 104 in the pocket 101. FIG. That is, the sprocket 42 is rotated before the holding device 61 accommodates the electronic component 104 in the pocket 101.

[Operation]
The operation of the present embodiment as described above will be described with reference to FIG. 6 in addition to FIGS. In the following description, the first pin 81 and the second pin 82 are arranged at intervals to extend the pair of inserted holes 102 in the longitudinal direction of the carrier tape 100, and the tension by the tension applying unit The case of giving is described as an example.

  The carrier tape traveling device 1 causes the timing belts 51a and 52a to travel by the forward rotation of the motors 51 and 52, and causes the sprockets 41 and 42 to rotate forward. The sprockets 41 and 42 hook the protrusions 43 into the holes 102 and cause the carrier tape 100 to travel to the reel 200 side.

  The carrier tape running device 1 intermittently rotates the motors 51 and 52 to intermittently feed the carrier tape 100 to the reel 200 side, and as shown in FIGS. 5 (A) and 6 (A), The pockets 101 are sequentially stopped at a position corresponding to the transfer position 6.

  The drive mechanism 83 raises the first pin 81 and the second pin 82 and starts insertion into the pair of holes 102 corresponding to the empty pockets 101. Then, as shown in FIG. 6B, the tip of the first pin 81 and the tip of the tapered portion 82b of the second pin 82 enter the pair of holes 102, and the tapered portion 82b of the second pin 82 Then, the hole 102 is gradually pulled in the traveling direction in contact with the edge of the hole 102. Then, as shown in FIG. 6C, when the body portion 82 a of the second pin 82 enters the hole 102, the carrier tape 100 is stretched between the first pin 81 and the second pin 82.

  Further, by rotating the sprocket 41 and pulling the carrier tape 100 in the traveling direction, tension is applied between the pair of holes 102 as shown in FIGS. 5 (B) and 6 (D). As a result, the pocket 101 sandwiched between the pair of holes 102 is stretched and positioned at a fixed position. For example, the center of the pocket 101 is aligned with the transfer position 6.

  On the other hand, as shown in FIGS. 5A and 6A, each holding device 61 holds the electronic components 104 one by one and stops at the transfer position 6 in order. Then, as shown in FIGS. 5B and 5C and FIGS. 6B to 6E, the electronic component 104 is lowered with respect to the empty pocket 101 positioned at the transfer position 6 as described above. Will be housed.

  The seal tape reel 3 draws the seal tape 105 to the carrier tape 100 side by the normal rotation of the motor 31. The pressing roller 32 guides the sealing tape 105 drawn from the sealing tape reel 3 to the surface of the carrier tape 100, and superimposes the sealing tape 105 on the surface of the carrier tape 100 where the pocket 101 opens.

  The sealing unit 2 previously contacts the heater block 21 with the travel path of the carrier tape 100. In the sealing part 2, the seal tape 105 and the carrier tape 100 are overlapped and shared. The sealing unit 2 sandwiches the carrier tape 100 and the seal tape 105 between the heater block 21 and the base block 22 and adheres the seal tape 105 to the carrier tape 100 by pressurization and heating. Thereby, the electronic component 104 in the pocket 101 is sealed by the sealing tape 105 and the inner wall of the pocket 104.

  After the carrier tape 100 is sealed by the seal tape 105, the carrier tape 100 is guided to the reel 200 by further intermittent running and is wound around the reel 200.

[Function and effect]
In the present embodiment, a plurality of pockets 101 for storing electronic components 104 are provided in the longitudinal direction, and a plurality of holes 102 in which the projections 43 of the sprockets 41 and 42 are hooked are arranged in parallel to the rows of the pockets 101. A carrier tape traveling device 1 that travels the tape 100 in the longitudinal direction, and a pair of holes positioned on the upstream side and the downstream side in the traveling direction across the center of each pocket 101 that has reached the delivery position 6 of the electronic component 104 102, at least a pair of the first pin 81 and the second pin 82 to be inserted / removed, and the first pin 81 and the second pin 82 are moved in a direction crossing the longitudinal direction of the carrier tape 100. Thus, a drive mechanism 83 that is inserted into and removed from the pair of holes 102 is provided.

  For this reason, fluctuations in the traveling direction of the pair of holes 102 are restricted by the first pins 81 and the second pins 82. Therefore, the pocket 101 can be positioned with high accuracy in a short time compared to the case where the position of the pocket 101 is detected and the unit is moved and positioned by the positioning mechanism. For example, the operation of inserting the first pin 81 and the second pin 82 into the hole 102 is far more than the processing time of imaging by the camera, image analysis, calculation of the deviation amount, and operation of the unit corresponding to the deviation amount. In a short time. In addition, when the positioning mechanism is driven by a ball screw, the accuracy is only about 0.05 mm. However, in this embodiment, the operation of inserting and removing the first pin 81 and the second pin 82 is sufficient. Accuracy of about .01mm can be achieved.

  Here, it is also conceivable to position the pocket 101 by rotating the sprockets 41 and 42 and moving the seal tape 105. However, since the interval between the protrusions 43 of the sprockets 41 and 42 inserted into the holes 102 of the carrier tape 100 is very long, the variation length due to expansion and contraction of the carrier tape 100 is larger than the variation length due to expansion and contraction of one pocket 101. become longer. For this reason, even if the feed accuracy of the sprockets 41 and 42 is increased, it is difficult to stabilize the position of the pocket 101 in a short time by applying tension. In addition, since the interval between the holes 102 into which the projections 43 of the sprockets 41 and 42 are inserted is very long, if the positional displacement between the pocket 101 and the hole 102 occurs due to the manufacturing process, the winding mode, etc., the accumulated error also occurs. growing. For this reason, it is difficult to accurately position the individual pockets 101 using the holes 102 that are separated from each other.

  In the present embodiment, since the variation length of the carrier tape 100 can be regulated by a short interval of the pair of holes 102 sandwiching each pocket 101, the position of the pocket 101 can be stabilized in a short time. For this reason, it is possible to reduce the time from when the carrier tape 100 is stopped to when the electronic component 104 is inserted and when the traveling is restarted, and the operation tact time of the carrier tape traveling device 1 such as the time required for taping is shortened. be able to. Further, since positioning is performed using the hole 102 closest to each pocket 101, there is little error between the position of the pocket 101 and the position of the hole 102, and displacement of the position of the pocket 101 can be minimized.

  One of the pair of pins 81, 82 is a cylindrical first pin 81, and the other of the pair of pins 81, 82 has a circular column shape and a tapered column shape, and is inserted into the hole 102 from a thin tip. This is the second pin 82.

  For this reason, the margin of the hole 102 with respect to the 2nd pin 82 becomes large, and the insertion probability of the 2nd pin 82 with respect to a pair of hole 102 can be raised. Moreover, since the diameter of the 2nd pin 82 becomes thick as it inserts, the margin with respect to the hole 102 reduces with the 1st pin 81, and the hole 102, the 1st pin 81, and the 2nd pin 82 are reduced. It is possible to shorten the time during which the position of the pocket 101 is stabilized by contact.

  The second pin 82 is provided downstream of the first pin 81 in the traveling direction.

  Therefore, as the second pin 82 is inserted, the hole 102 comes into contact with the first pin 81 and is pulled between the pair of holes 102 in the traveling direction between the first pin 81 and the position of the pocket 101. Can increase the possibility of stabilization. Moreover, since it does not pull reversely with the traveling direction, the processing on the wake side is not affected.

  The first pin 81 and the second pin 82, and the pair of inserted holes 102 are arranged at intervals that extend in the longitudinal direction of the carrier tape 100. For this reason, if the first pin 81 and the second pin 82 are inserted into the pair of holes 102, the space between the pair of holes 102 is stretched, and the position of the pocket 101 is stabilized.

  For this reason, after inserting the 1st pin 81 and the 2nd pin 82, the operation | work which provides tension | tensile_strength to the carrier tape 100 can be abbreviate | omitted, and a tact time can be shortened.

  With the first pin 81 and the second pin 82 inserted in the pair of holes 102, a tension applying unit that applies tension between the pair of holes 102 by pulling the carrier tape 100 in the running direction. Have.

  For this reason, the space between the pair of holes 102 is surely stretched, and accurate positioning can be performed.

  The driving mechanism 83 includes a holding device 61 that accommodates the electronic component 104 in the pocket 101, and the drive mechanism 83 places the first pin 81 and the second pin 82 in the pair of holes 102 before the electronic component 104 is accommodated in the pocket 101. Insert into.

  For this reason, the position of the pocket 101 with respect to the electronic component 104 is stabilized, the insertion position is stabilized, and the situation where the electronic component 104 hits the inner wall of the pocket 101 is prevented.

[Other aspects]
Although the embodiments of the present invention have been described above, various omissions, replacements, and changes can be made without departing from the scope of the invention. And this embodiment and its deformation | transformation are included in the invention described in the claim, and its equivalent range while being included in the range and summary of invention.

  The second pin 82 may be inserted into the hole 102 before the first pin 81. In that case, the length of the second pin 82 in the axial direction is made longer than that of the first pin 81, and the tip of the second pin 82 reaches the hole 102 earlier than the first pin 81. You may comprise as follows. This means that the tip of the second pin 82 only needs to be positioned closer to the hole 102 than the tip of the first pin 81 that faces the hole 102. Further, a driving mechanism for independently driving the first pin 81 and the second pin 82 is provided, and the tip of the second pin 82 is configured to reach the hole 102 earlier than the first pin 81. May be. In this case, the second pin 82 having a high insertion probability into the hole 102 enters the hole 102 first by the tapered portion 82b at the tip, so that the position of the downstream hole 102 is determined to some extent, and the upstream hole The position 102 can be stabilized, and the insertion probability of the first pin 81 can be increased. In addition, since the insertion probability of the first pin 81 and the second pin 82 is increased as described above, the diameter of the first pin 81 and the diameter of the body portion 82a of the second pin 82 are set to the diameter of the hole 102. It is possible to suppress the fluctuation of the carrier tape 100 after insertion and stabilize it.

  The shape, size, and the like of the pair of pins 81 and 82 are not limited to those described above. For example, the corner of the first pin 81 and the corner of the second pin 82 may be rounded so that the insertion into the hole 102 is smooth. Various materials such as metal and synthetic resin can also be applied. By forming the surface with a smooth material, the insertion into the hole 102 may be smooth. Further, at least one or both of the pair of pins 81 and 82 may be a pin having an elliptical horizontal cross section. For example, the circle in “cylindrical shape” and “circular cross section” includes an ellipse. In this case, the pair of pins 81 and 82 are preferably arranged so as to have a long radius in the traveling direction of the carrier tape 100. Moreover, since the part which contact | connects the hole 102 of a pair of pins 81 and 82 should just be a curved surface, the shape which a cross section has a partial circle and a partial ellipse may be sufficient like a substantially C shape and a substantially U shape, for example. . Further, the pair of pins 81 and 82 may be solid or hollow inside.

  The type, material, size, and the like of the corresponding carrier tape 100 are not limited to the above-described aspect. For example, the present invention can be applied to the carrier tape 100 using a paper tape. In this type of carrier tape 100, one surface of a hole formed in a paper tape is sealed with a seal tape, so that each hole is configured as a pocket 101 having the seal tape as a bottom surface. After the electronic component 104 is placed in the pocket 101, the hole is sealed with a sealing tape. Even in such a carrier tape 100, a hole 102 in which a sprocket projection is caught is formed in parallel with the pocket 101. For this reason, it can be used similarly to the carrier tape 100 described above. In this case, the sprocket hole 102 is not sealed.

  The sprocket holes 102 do not have to be in a single row. For example, as shown in FIG. 7, holes 102 parallel to the pocket 101 may be formed on both sides of the pocket 101 in the width direction. In this case, the pair of pins 81 and 82 of the positioning portion 8 may be inserted into the pair of holes 102 in either row, or the positioning portions 8 are provided for both rows, and a pair of pins in both rows is provided. A pair of pins 81 and 82 may be inserted into the hole 102. In addition, a pair of pins 81 and 82 may be inserted into a pair of holes 102 that are located diagonally across the pocket 101. As described above, when two rows of holes 102 sandwiching the pocket 101 are used, positioning in the width direction can be performed accurately.

  The size and shape of the pocket 101 and the size and shape of the hole 102 are not limited to those exemplified in the above embodiment. The position of the hole 102 with respect to the pocket 101 is not limited to the above-described mode. The interval between the holes 102 may be longer or shorter than the above embodiment. The pair of holes 102 into which the pair of pins 81 and 82 are inserted may be a pair of holes 102 that sandwich the center of the pocket 101 and is not limited to the adjacent holes 102.

  The distance between the pair of holes 102 at the position sandwiching the center of the pocket 101 may be such that at least a part of the region corresponding to the pocket 101 can be extended using the hole 102. That is, as shown in FIG. 8, the position sandwiching the center O of the pocket 101 is a position sandwiching an orthogonal line passing through the middle in the longitudinal direction of the carrier tape 100 of the pocket 101, and the position of the hole 102 on the upstream side of the pocket 101. The upstream edge and the downstream edge of the downstream hole 102 may be inside the upstream and downstream edges of the pocket 101.

  A suction part that sucks the electronic component 104 through a suction hole formed in the pocket 101 may be provided on the bottom guide that defines the bottom of the traveling path of the carrier tape 100. If there is this suction part, it will stick to the bottom face of the pocket 101 by the suction by the suction part and the position will be stabilized. In this case, the pair of pins 81 and 82 of the positioning unit 8 may be set to be positioned at positions corresponding to the suction holes of the pocket 101.

  Although the cost is high, if the position of the pocket 101 of the carrier tape 100 is shifted from the reference position by detecting the position of the pocket 101 with the camera, the base 11 is moved in the XY direction. A positioning mechanism for driving may be provided so that the shift in the width direction can be corrected. Further, the apparatus can be stopped when a detection unit is provided to detect the position, posture, state, and omission of the electronic component 104 and determine that there is an abnormality.

  Although the suction nozzle has been described as an example of the holding device 61, an electrostatic suction method, a Bernoulli chuck method, or a chuck mechanism that mechanically holds the electronic component 104 may be provided. Further, the electronic component 104 may be any as long as it can be packed on the carrier tape 100. For example, examples of the electronic component 104 include a semiconductor element and a resistor or capacitor other than the semiconductor element. Examples of the semiconductor element include discrete semiconductors such as transistors, diodes, LEDs, and thyristors, and integrated circuits such as ICs and LSIs.

  In the present embodiment, the carrier tape 100 is caused to travel by the two motors 51 and 52. However, any one of the motors 51 and 52 is provided, and the carrier tape 100 is caused to travel by the motor. Also good. Further, any one of the sprockets 41 and 42 may be provided, and the other may be a pinless roller for guiding the carrier tape 100.

  Further, the carrier tape traveling device 1 of the present invention is not limited to a taping device. For example, the taper 101 may be detached from the carrier tape 100 in which the pocket 101 is sealed with the seal tape 105, and the electronic component 104 inside the pocket 101 may be configured as a detaper picked up by a holding device. In this case, even if the pocket 101 can be positioned stably, the position of the internal electronic component 104 is not necessarily constant, but an error factor between the pickup position and the position of the electronic component 104 can be reduced.

DESCRIPTION OF SYMBOLS 1 Carrier tape travel apparatus 2 Sealing part 21 Heater block 22 Base block 3 Seal tape reel 31 Motor 32 Pressing roller 41 Sprocket 42 Sprocket 43 Protrusion 51 Motor 51a Timing belt 52 Motor 52a Timing belt 6 Transfer position 61 Holding apparatus 7 Control apparatus 8 Positioning portion 81 First pin 82 Second pin 82a Body portion 82b Tapered portion 100 Carrier tape 101 Pocket 102 Hole 104 Electronic component 105 Seal tape 200 Reel

Claims (7)

A carrier tape running device for running a carrier tape in which a plurality of pockets for storing electronic components are provided in the longitudinal direction and a plurality of holes on which sprocket projections are hooked are arranged in parallel to the row of pockets. There,
At least a pair of pins respectively inserted into and removed from a pair of holes located on the upstream side and the downstream side in the running direction across the center of the pocket that has reached the delivery position of the electronic component;
A drive mechanism for inserting and removing the pair of pins into and from the pair of holes by moving the pair of pins in a direction intersecting the longitudinal direction of the carrier tape;
I have a,
The carrier tape travel device characterized in that the distance between the center axes of the pair of pins is longer than the distance between the centers of the pair of holes while allowing the tips to be inserted into the pair of holes . One of the pair of pins is a cylindrical first pin,
The carrier tape travel device according to claim 1, wherein the other of the pair of pins is a second pillar inserted into the hole from a thin tip with a circular cross section and a tapered column shape.   The carrier tape travel device according to claim 2, wherein the second pin is provided downstream of the first pin in the travel direction. The carrier tape travel device according to any one of claims 1 to 3 , wherein the pair of pins are arranged at intervals that extend the pair of inserted holes in a longitudinal direction of the carrier tape. . The tension applying portion for applying tension between the pair of holes by pulling the carrier tape in a running direction in a state where the pair of pins are inserted into the pair of holes. The carrier tape travel device according to any one of 1 to 4 . The drive mechanism, before the electronic component is accommodated in the pocket, a carrier tape running device according to any one of claims 1 to 5, characterized in that inserting the pair of pins to said pair of holes . A taping device that travels in the longitudinal direction a carrier tape in which a plurality of pockets for storing electronic components are provided in the longitudinal direction and a plurality of holes into which the sprocket projections are hooked are arranged in parallel to the row of pockets. ,
At least a pair of pins respectively inserted into and removed from a pair of holes located on the upstream side and the downstream side in the running direction across the center of the pocket that has reached the delivery position of the electronic component;
A drive mechanism for inserting and removing the pair of pins into and from the pair of holes by moving the pair of pins in a direction intersecting the longitudinal direction of the carrier tape;
A sprocket that hooks and runs the carrier tape;
A motor for rotating the sprocket;
A reel wound with a sealing tape to be attached to the carrier tape;
The carrier is provided downstream of the pair of pins in the traveling direction, moves so as to be able to contact and separate from the traveling path of the carrier tape, and sandwiches the seal tape and the carrier tape drawn from the reel, and A pair of blocks for adhering the sealing tape to the tape;
With
The distance between the central axes of the pair of pins is longer than the distance between the centers of the pair of holes while allowing the tip to be inserted into the pair of holes.
A taping device that pulls out the sealing tape from the reel, closes the pressing roller to the traveling path of the carrier tape, and closes the pair of blocks to seal the carrier tape with the sealing tape. .

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