JPWO2016117093A1 - Splicing apparatus and splicing method - Google Patents

Abstract

The splicing device (20) stores components in the cavity (Ct) based on the fact that a component presence signal (53a) is output N times in succession as the carrier tape (Tc) is conveyed. When the storage start position determination unit (step 114) for determining the start position and the storage start position of the component e are determined, the tape transport unit (51a) is driven in the reverse direction by a predetermined amount, and the carrier tape (Tc) is The return control unit (step 118) for returning to the position where the signal with parts is first output, and then the tape transport unit (51a) is driven in a positive direction by a certain amount to cut the cut portion (CU) of the carrier tape (Tc). ) At a tape cutting position (Lc1), and a tape positioning control unit (step 120), and a tape that cuts the cutting part (CU) of the carrier tape (Tc) positioned at the tape cutting position (Lc1) And a cross-sectional portion (55a).

Description

  The present invention relates to a splicing device and a splicing method for connecting two carrier tapes.

  For example, as described in Patent Document 1, a splicing device that automatically connects two carrier tapes is known. The splicing device includes a cutting device that cuts end portions of two carrier tapes at predetermined positions, and a connecting device that connects the two carrier tape ends cut by the cutting device with the splicing tape. .

International Publication No. 2013/157108

  There are usually two to three empty cavities at the beginning and end of two carrier tapes connected by this type of splicing device. Therefore, when cutting and connecting the ends of two carrier tapes, in order to avoid wasting the parts and to avoid an empty cavity between the two carrier tapes, It is necessary to cut the carrier tape between the stored cavity and the empty cavity.

  However, in order to cut the carrier tape between the cavity in which the component is stored and the empty cavity, a sensor capable of accurately detecting the presence or absence of the component, signal processing thereof, and the like are required. Therefore, under the present circumstances, the carrier tape is cut between the cavities in which the components are stored so that no empty cavity exists between the two carrier tapes. For this reason, the parts housed in the cavity remain at the end portion of the carrier tape that is cut and discarded, and if this is repeated, the parts are wasted and become extremely uneconomical.

  Conversely, if the carrier tape is cut with a margin so as not to discard the parts, an empty cavity exists between the two connected carrier tapes. If an empty cavity exists between two connected carrier tapes, it is not possible to adsorb a component even when the empty cavity is conveyed to a component adsorption position when used in a component mounter. For this reason, an adsorption error occurs, and in the worst case, it is necessary to stop the component mounter.

  The present invention has been made in view of the circumstances described above, and the carrier tape is used without wastefully discarding the components housed in the cavity and so that there is no empty cavity between the two carrier tapes to be connected. It is an object of the present invention to provide a splicing device and a splicing method that can be connected.

  In order to solve the above-described problems, the present invention transports two carrier tapes each having a feed hole and a component storage cavity at regular intervals to a splicing position, and the two carrier tapes are spliced at the splicing position. A splicing device that transports the carrier tape inserted into the device to the splicing position, and a component detection unit that detects the presence or absence of a component housed in the cavity of the carrier tape at a component detection position And determining the storage start position of the component in the cavity based on the fact that the component detection signal is output N times consecutively by the component detection unit as the carrier tape is transported by the tape transport unit. The start position determination unit and the storage start position determination unit When the storage start position is determined, a return control unit that drives the tape transport unit by a predetermined amount in the reverse direction to return the carrier tape to the position where the signal with the component is first output, and the return control After the carrier tape is returned to the position where the signal with the part is first output by the part, the tape transport unit is driven in a positive direction by a certain amount to position the cutting portion of the carrier tape at the tape cutting position. A tape positioning control unit that is disposed on the splicing position side of the component detection unit, and a tape cutting unit that cuts the cutting portion of the carrier tape positioned at the tape cutting position by the tape positioning unit. A splicing device.

  Even if the return control unit is not provided, when the storage start position determination unit determines the storage start position of the component, it calculates the amount that the cut portion of the carrier tape overruns the component detection unit. A tape positioning control unit that drives the tape transport unit in a reverse direction by a predetermined amount; and the splicing position side of the carrier tape that is positioned on the splicing position side of the component detection unit and positioned at the tape cutting position by the tape positioning unit. A splicing device can also be configured by including a tape cutting unit that cuts the cutting site.

  According to the present invention, even if the interval between the component detection position and the tape cutting position is small, the carrier tape can be reliably cut between the cavity in which the component is stored and the empty cavity. The carrier tape can be connected without wastefully discarding the components housed in the cavity and so that there is no empty cavity between the two carrier tapes to be connected.

It is a figure which shows the tape feeder suitable for implementation of this invention. It is a figure which shows the carrier tape hold | maintained at the tape feeder. It is sectional drawing cut | disconnected along the 3-3 line of FIG. 1 is an external view of a splicing device showing an embodiment of the present invention. It is the schematic which shows the structure of a splicing apparatus roughly. It is a figure which shows two types of carrier tapes. It is explanatory drawing which detects the presence or absence of the components accommodated in the cavity of A type carrier tape by a components detection part. It is explanatory drawing for positioning a carrier tape in a cutting | disconnection site | part based on the detection signal of a components detection part. It is explanatory drawing which detects the presence or absence of the components accommodated in the cavity of B type carrier tape by a components detection part. It is a flowchart which shows the procedure which positions a carrier tape in a cutting | disconnection site | part. It is a flowchart which shows another procedure which positions a carrier tape in a cutting | disconnection site | part.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a tape feeder 10 that is detachably attached to a component supply device of a component mounting machine. A reel 12 around which a carrier tape Tc is wound is detachably attached to the tape feeder 10.

  As shown in FIG. 2, the carrier tape Tc includes a base tape Tb that is formed long and narrow with a predetermined width. In the base tape Tb, a large number of cavities Ct are arranged at a constant pitch in the longitudinal direction, and components (electronic components) e to be mounted on the circuit board are accommodated in the cavities Ct. The upper part of the cavity Ct is opened, and as shown in FIG. 3, it is covered with a top tape Tt that is attached to the surface of the base tape Tb.

  The base tape Tb is made of a flexible material such as paper or resin. On one end side in the width direction of the carrier tape Tc (base tape Tb), feed holes Hc are formed at a constant pitch interval, and these feed holes Hc are arranged in a positional relationship described later with respect to the cavity Ct. The top tape Tt is made of a transparent polymer film.

  The tape feeder 10 has a constant feed mechanism 18 that feeds the carrier tape Tc wound around the reel 12 quantitatively and supplies the components e one by one to the component supply position 17 provided at the tip of the tape feeder 10. Built in. The fixed amount feeding mechanism 18 is rotatably supported by the main body of the tape feeder 10 and includes a sprocket 19 that engages with the feeding hole Hc of the carrier tape Tc and a motor (not shown) that rotates the sprocket 19 by one pitch. .

  The carrier tape Tc used in the component mounting machine is composed of a plurality of types having different pitches of the cavities Ct. Depending on the type of the carrier tape Tc, the pitch interval of the cavities Ct and the relationship between the cavities Ct and the feed holes Hc may be used. It has been established. Therefore, as described later, by detecting the pitch interval of the cavity Ct, the type of the carrier tape Tc can be grasped, and based on this, the cutting site of the carrier tape Tc at the time of splicing of the carrier tape Tc can be determined. It becomes like this.

  The splicing device 20 shown in FIG. 4 has an end portion of the carrier tape Tc wound around the current reel 12 mounted on the tape feeder 10 at a start end portion of the carrier tape Tc wound around the next reel to be replaced. It is a device that automatically connects using a splicing tape (not shown). The splicing device 20 includes a box-shaped housing 21 and a lid 22 that can open and close the upper surface of the housing 21, and is mounted on a component supply device of a component mounting machine that is mounted on an unillustrated carriage or the like. It is comprised so that a movement between 10 is possible. The lid 22 is closed at the time of splicing and is opened at the time of taking out the carrier tape Tc after the splicing.

  As shown in FIGS. 6A and 6B, there are two types of carrier tapes Tc connected by the splicing device 20, and the feed holes Hc are arranged at the same pitch interval Ph. In the carrier tape Tc (TcA), as shown in FIG. 6A, cavities Ct are arranged at the same pitch interval (Ph) as the feed holes Hc at an intermediate position between adjacent feed holes Hc. On the other hand, as shown in FIG. 6B, the B type carrier tape Tc (TcB) has a cavity Ct at a position that coincides with the feed hole Hc and an intermediate position between the adjacent feed holes Hc. Are arranged at a pitch interval of / 2 (Ph / 2).

  When two types of carrier tapes Tc having different pitches of the cavities Ct are spliced, the cutting part (connection part) CU is normally set at a position avoiding the cavity Ct (a position not crossing the cavity). As shown in FIG. 6 (A), the type A carrier tape Tc (TcA) having a Ct pitch of Ph has a cutting portion CU at the center of the feed hole Hc, and a pitch B of the cavity Ct is Ph / 2. As shown in FIG. 6B, the carrier tape Tc (TcB) is cut at an intermediate position between the cavities Ct, that is, a position spaced by Ph / 4 (Ph × 3/4) from the center of the feed hole Hc. It is set as the part CU.

  FIG. 5 schematically shows the configuration of the splicing device 20. On the left and right sides of the casing 21 and the lid body 22 (see FIG. 4) of the splicing device 20, tape insertion openings 84a and 84b for inserting two carrier tapes Tc into the casing 21 are provided. Are provided respectively. In addition, a splicing position Ls is provided at the central portion of the casing 21 and the lid body 22 in which a tape connecting portion 30 is provided for connecting the ends of the two carrier tapes Tc using a splicing tape (not shown). Yes.

  Between each of the splicing positions Ls and the tape insertion openings 84a and 84b, there are respectively provided tape transport portions 51a and 52b for transporting the respective carrier tapes Tc inserted into the tape insertion openings 84a and 84b toward the splicing position Ls. It has been. Tape cutting positions Lc1 and Lc2 are arranged at positions separated by a predetermined amount D1 from the splicing position Ls on the respective conveying paths 60a and 60b of the tape conveying sections 51a and 52b. At these tape cutting positions Lc1 and Lc2, tape cutting portions 55a and 55b for cutting the front end portion of the carrier tape Tc at a predetermined cutting site and intake portions 57a and 57b for taking in unnecessary portions at the front end are disposed. Yes.

  In addition, component detection positions Ld1 and Ld2 are provided between the tape cutting positions Lc1 and Lc2 and the tape insertion openings 84a and 84b on the respective conveying paths 60a and 60b of the tape conveying units 51a and 52b. , Lc2 are arranged at positions separated by a predetermined amount D2. At these component detection positions Ld1 and Ld2, component detection units 53a and 53b for detecting the tip of the carrier tape Tc are disposed.

  The tape insertion port 84a, the tape transport unit 51a, the component detection unit 53a, the tape cutting unit 55a, and the take-in unit 57a, the tape insertion port 84b, the tape transport unit 52b, the component detection unit 53b, the tape cutting unit 55b, and The take-in portion 57b has the same configuration and is arranged symmetrically about the splicing position Ls. Accordingly, in the following description, the configuration with a in the left half of FIG. 5 will be described, and the description of the configuration with b in the right half will be omitted.

  The component detection unit 53a includes, for example, a photosensor, and detects a cavity Ct of the carrier tape Tc conveyed in the conveyance path 60a, a tape portion between adjacent cavities Ct, and a component e in the cavity Ct based on a change in the amount of light. It is. A detection signal from the component detection unit 53 a is sent to the control device 40 built in the housing 21. The control device 40 controls the tape transport unit 51a, the tape cutting unit 55a, the take-in unit 57a, and the like. Note that a camera may be used as the component detection unit 53a instead of the photosensor.

  The tape transport unit 51a includes a sprocket 61a disposed below the transport path 60a, a stepping motor 62a capable of rotating forward and reverse as a drive source connected to the sprocket 61a, and a sprocket for positioning the sprocket 61a in its original position. It is comprised by the tooth detection apparatus 63a etc. The tape transport unit 51a transports the carrier tape Tc along the transport path 60a, and sequentially positions the component tape at the component detection position Ld1, the tape cutting position Lc1, and the splicing position Ls.

  On the outer periphery of the sprocket 61a, a plurality of teeth 67a having the same pitch as the pitch of the feed holes Hc of the carrier tape Tc are formed over the entire periphery. The sprocket 61a is disposed below the conveyance path 60a so that the uppermost tooth 67a can mesh with the feed hole Hc of the carrier tape Tc inserted from the tape insertion port 84a.

  The sprocket tooth detection device 63a detects the tooth 67a of the sprocket 61a and detects that the tooth 67a is correctly positioned at the origin position (the apex position of the sprocket 61a). Reference numeral 64a denotes a tape detection sensor that detects that the carrier tape Tc has been inserted from the tape insertion slot 84a.

  One end of the tape cutting portion 55a is attached to the cutting cutter 68a provided at the tape cutting position Lc1, a cam 69a slidably contactable with the cutter 68a, a motor 70a connected to the cam 69a, and the cutter 68a. A spring 71a having the other end attached to the fixed portion, a pressing member 72a provided adjacent to the cutter 68a, a spring 73a having one end attached to the cutter 68a and the other end attached to the pressing member 72a, etc. It is configured.

  The cutter 68a cuts the cutting part CU of the carrier tape Tc positioned at the tape cutting position Lc1. The cam 69a of the tape cutting part 55a is rotated by the motor 70a to move the cutter 68a in the vertical direction. The pressing member 72a presses the vicinity of the cutting part CU of the carrier tape Tc positioned at the tape cutting position Lc1.

  The take-in portion 57a includes a take-up member 75a that includes a movable member 77a and a fixed member 78a that rotatably supports the moveable member 77a, a drive device 76a that includes a solenoid that drives the moveable member 77a, and the like. The movable member 77a is formed with a movable conveyance path 79a that forms a part of the conveyance path 60a, and an opening 80a for taking in an unnecessary portion at the tip of the carrier tape Tc that is conveyed on the conveyance path 60a. The movable member 77a is formed with a duct 82a for guiding the taken-in unnecessary portion to the disposal location.

  The movable member 77a is normally held at an angular position (a state indicated by a two-dot chain line in FIG. 5) where the opening 80a is aligned with the conveyance path 60a. After the unnecessary portion is taken in, the movable conveyance path 79a is driven by the driving device 76a. Are rotated to an angular position (a state indicated by a solid line in FIG. 5) aligned with the transport path 60a.

  The carrier tape Tc is cut at the cutting part CU by the tape cutting part 55a, and is transported by a predetermined amount D1 from the tape cutting position Lc1, so that it is positioned at the splicing position Ls and connected (spliced) by the tape connecting part 30. . In addition, about the structure of the tape connection part 30, the thing of the structure as described in the international publication 2013/157108 which concerns on this application, for example can be employ | adopted.

  Next, the splicing operation in the above embodiment will be described. When the remaining amount of the component e held on the carrier tape Tc wound around the reel 12 attached to the tape feeder 10 is reduced, the reel 12 is moved to another reel 12 containing the same type of component e at the end of the carrier tape Tc. Splicing processing for connecting the start end of the wound carrier tape Tc is performed. Parts are supplied by such splicing so that the parts can be continuously supplied from the tape feeder 10. In splicing, so-called splicing verification is performed to check whether the two carrier tapes Tc to be connected contain the same type of component e.

  Control for positioning the cutting portion CU of the carrier tape Tc at the tape cutting position Lc1 in order to splice the two carrier tapes Tc at the splicing position Ls will be described based on the flowchart shown in FIG. In the following, an example of splicing A type carrier tape Tc (TcA) having the same pitch Ph as the feed holes Hc in the cavity Ct will be described.

  When the power is turned on with the lid 22 of the splicing device 20 closed, in step 102, the control device 40 drives the stepping motor 62a, and the teeth 67a of the sprocket 61a are moved by the sprocket tooth detection device 63a. Position to the origin position (vertex position). In this state, the carrier tape Tc is inserted from the tape insertion slot 84a by the operator.

  Next, in step 104, the control device 40 determines whether or not the insertion of the carrier tape Tc is detected by the tape detection sensor 64a that detects the tip of the carrier tape Tc, and detects the insertion of the carrier tape Tc. When the determination is made, in step 106, the stepping motor 62a is intermittently driven every predetermined pitch Pa. The predetermined pitch Pa is preferably, for example, a pitch that is ¼ of the pitch Ph of the feed hole Hc of the carrier tape Tc, that is, a pitch smaller than the pitch (Ph / 2) of the cavity Ct of the B type carrier tape TcB.

  Next, in step 108, the control device 40 determines whether or not the end of the carrier tape Tc is detected by the component detection unit 53a. That is, based on the pitch driving of the stepping motor 62a, when the tip of the carrier tape Tc crosses the component detection unit (photosensor) 53a disposed at the component detection position Ld1, the signal of the component detection unit 53a changes. The control device 40 determines that the end of the carrier tape Tc has been detected, and proceeds to step 110. In step 110, the control device 40 drives the stepping motor 62a to position the tooth 67a of the sprocket 61a at the origin position (vertex position) by the sprocket tooth detection device 63a.

  Next, in step 112, the control device 40 intermittently drives the stepping motor 62a at a pitch Pb that is 1/2 the pitch Ph of the feed holes Hc (the minimum pitch of the cavities Ct of the carrier tape Tc).

  By intermittent driving of the stepping motor 62a, as shown in FIG. 7, the center position of the cavity Ct, the base tape Tb portion between the cavities Ct, and the center position of the cavity Ct are sequentially conveyed to the component detection position Ld1. Here, the detection signal of the component detection unit 53a made of a photosensor is “S1”, that is, a component-less signal because the amount of transmitted light increases in an empty cavity Ct portion where there is no component e, whereas the component e In the cavity Ct portion in which is stored, since the amount of transmitted light is reduced by the component e, “S2” lower than “S1”, that is, a component presence signal is obtained. Further, in the portion of the base tape Tb between the cavities Ct, the amount of transmitted light is reduced depending on the thickness of the base tape Tb.

  Next, in step 114, the control device 40 counts the component presence signal “S2” from the component detection unit 53a, and determines whether or not it has been detected continuously N times (for example, 5 times). If not detected continuously N times, the process returns to step 112 and the above-described cycle is repeated.

  For example, in the case of the type A carrier tape Tc (TcA) shown in FIG. 7, the base tape Tb portion between the first empty cavity Ct and the next empty cavity Ct of the carrier tape Tc is conveyed to the component detection position Ld1. In this case, a component presence signal “S2” is output from the component detection unit 53a, and “1” is counted. However, by the next pitch feed, the empty cavity Ct is conveyed to the component detection position Ld1, and the component detection is performed. Since the part-less signal “S1” is output from the unit 53a, the count value is reset to “0”.

  In step 114 described above, when the control device 40 determines that the component presence signal [S2] has been detected N times consecutively from the component detection unit 53a, the control device 40 proceeds to step 116. In step 116, the control device 40 determines the type of the carrier tape Tc based on the detection signal of the component detection unit 53a, and obtains the cut portion CU of each carrier tape Tc.

  That is, as shown in FIG. 8, the rise time t1 of the detection signal “S1” (component free signal) of the component detection unit 53a and the rise time t2 of the next detection signal “S1” are detected. The number of pulses (rotation angle) of the stepping motor 62a required to drive the sprocket 61a between t2 is counted. Then, the pitch between the cavities Ct of the carrier tape Tc is calculated based on this pulse count. In the case of the carrier tape Tc shown in FIG. 8, the pitch of the cavities Ct is Ph. It is determined that If the pitch of the cavities Ct is Ph / 2, it is determined that the carrier tape Tc is of type B.

  Next, at step 118, the stepping motor 62a is driven in reverse, and the carrier tape Tc is moved backward to the position where the first component presence signal “S2” is output by the sprocket 61a. That is, the stepping motor 62a is reversely controlled so as to move the carrier tape Tc backward by N times (N × Ph / 2) the transport pitch (Ph / 2). As a result, the cutting part CU preceding the position where the first part presence signal “S2” is output, that is, the center position of the cavity Ct in which the first part e is accommodated by the pitch Pb (Ph / 2), is the part. It is positioned at the detection position Ld1.

  In rare cases, the component presence signal “S2” is detected N times in spite of the fact that the component detection unit 53a is an empty cavity Ct, and the output signal due to local variations in the quality of the base tape Tb, etc. This is because an erroneous determination as a component presence signal may occur due to fluctuation. For this reason, the component presence signal “S2” is detected N times consecutively so that the cavity Ct in which the component e is initially stored can be definitely detected without being affected by fluctuations in the output signal of the component detector 53a. Thus, it is possible to reliably detect that the cavity Ct in which the component e is first stored has passed the component detection position Ld1.

  Further, if the distance D2 between the component detection position Ld1 and the tape cutting position Lc1 is short and the component presence signal is detected N times continuously in order to reduce the size of the splicing device 20, the carrier tape Tc is cut. Since the part CU may overrun the tape cutting position Lc1, the stepping motor 62a is reversed to temporarily return the cutting part CU of the carrier tape Tc to the component detection position Ld1.

  In this way, by detecting the component presence signal “S2” for N times in succession, the cavity Ct in which the component e is initially stored can be reliably detected, and then the backward movement of the carrier tape Tc is added to thereby perform splicing. The distance D2 between the component detection position Ld1 and the tape cutting position Lc1 for miniaturization of the apparatus 20 can be minimized.

  Next, at step 120, the control device 40 rotates the stepping motor 62a forward by a fixed amount corresponding to the distance D2 between the component detection position Ld1 and the tape cutting position Lc1, and sets the cutting portion CU of the carrier tape Tc to the tape. Position at the cutting position Lc1. Thereafter, in step 122, the control device 40 drives the motor 70a and cuts the cutting portion CU of the carrier tape Tc by the cutting cutter 68a of the tape cutting portion 55a.

  The above-described step 114 constitutes a storage start position determination unit that determines the storage start position of the component e in the cavity Ct based on the fact that the component presence signal is output N times continuously by the component detection unit 53a. Yes. Further, when the component storage start position is determined in the above-described step 118, the tape transport unit 51a is driven by a predetermined amount in the reverse direction, and the carrier tape Tc is returned to the position where the signal with the component is first output. A return control unit is configured. Further, the above-described step 120 constitutes a tape positioning control unit that drives the tape transport unit 51a by a certain amount in the forward direction to position the cutting portion CU of the carrier tape Tc at the tape cutting position Lc1.

  The above description is the operation of the carrier tape Tc inserted from one tape insertion slot 84a, but the carrier tape Tc inserted from the other tape insertion slot 84b is also operated by the same operation as described above. Is cut at the tape cutting position Lc2 and is cut by the cutting cutter 68b of the tape cutting portion 55b.

  When the B type carrier tape Tc (TcB) whose cavity Ct is ½ of the pitch Ph of the feed holes Hc is inserted into the splicing device 20, the stepping motor 62a is intermittently driven in step 112 described above. Accordingly, as shown in FIG. 9, the center position of the cavity Ct is sequentially conveyed to the component detection position Ld1.

  When the component presence signal “S2” from the component detection unit 53a is detected N times consecutively, in step 118, the stepping motor 62a is driven in reverse, and the carrier tape Tc (TcB) is set to the conveyance pitch (Ph / 2). The center position of the cavity Ct in which the first component e is accommodated is positioned at the component detection position Ld1 by retreating by N times (N × Ph / 2). Further, the rotation amount of the stepping motor 62a in step 120 is Ph / 4 (see FIG. 6) or an amount corresponding to Ph × 3/4 from the distance D2 between the component detection position Ld1 and the tape cutting position Lc1. It rotates forward and the cutting part CU of the carrier tape Tc is positioned at the tape cutting position Lc1.

  After the cutting, the two carrier tapes Tc are respectively transported by a predetermined amount D1 by the tape transport portions 51a and 51b, and the ends are joined at the splicing position Ls. In this state, the top tape Tt side and the base tape Tb side of the two carrier tapes Tc are respectively connected (spliced) by a splicing tape (not shown) at the tape connecting portion 30. When the splicing process of the carrier tape Tc is completed, the cover 22 of the splicing device 20 is opened, and the carrier tape Tc that is connected and integrated is taken out.

  FIG. 11 shows another control example different from the above for positioning the cutting part CU of the carrier tape Tc at the tape cutting position Lc1. Hereinafter, another control example will be described based on the flowchart of FIG. Note that steps 102 to 116 and step 122 are the same as the flowchart (see FIG. 10) described above. The difference is that in step 200, the carrier tape Tc is temporarily retracted to the position where the first component presence signal “S2” is output and then positioned at the tape cutting position Lc1, but not the component presence signal “S2”. The cutting portion of the carrier tape Tc based on the transport amount (N × Ph / 2) of the carrier tape Tc necessary for detecting N continuously and the distance D2 between the component detection position Ld1 and the tape cutting position Lc1 The amount of overrun from the tape cutting position Lc1 of the CU is obtained, and the stepping motor 62a is reversely controlled so that the carrier tape Tc is moved backward by the obtained overrun amount.

  When the storage start position of the component e is determined by the above-described step 200, the amount by which the cut portion CU of the carrier tape Tc overruns the component detection unit 53a is calculated, and the tape transport unit 51a is driven in the reverse direction by a predetermined amount. The tape positioning control unit is configured.

  According to the above-described embodiment, component detection is performed on the presence or absence of the component e stored in the cavity Ct of the carrier tape Tc, and the tape transport unit 51a that transports the carrier tape Tc inserted into the splicing device 20 to the splicing position Ls. Based on the component detection unit 53a that detects at the position Ld1 and the carrier detection unit 53a outputting the signal with the component N times in succession with the conveyance of the carrier tape Tc by the tape conveyance unit 51a, in the cavity Ct. When the storage start position of the component e is determined by the storage start position determination unit (step 114) for determining the storage start position of the component and the storage start position determination unit (step 114), the tape transport unit 51a is moved in the reverse direction. Drive a predetermined amount to return the carrier tape Tc to the position where the signal with the parts was first output. After the carrier control unit (step 118) and the return control unit (step 118) return the carrier tape Tc to the position where the signal indicating that the component is first output, the tape transport unit 51a is driven in a certain amount in the forward direction. A tape positioning control unit (step 120) for positioning the cutting part CU of the carrier tape Tc at the tape cutting position Lc1;

  A tape cutting unit 55a that is disposed on the splicing position Ls side from the component detection unit 53a and that cuts the cutting portion CU of the carrier tape Tc positioned at the tape cutting position Lc1 by the tape positioning unit (step 120).

  Thereby, even if the interval between the component detection position Ld1 and the tape cutting position Lc1 is small, the carrier tape Tc can be surely cut at the cutting portion CU between the cavity Ct in which the component e is stored and the empty cavity Ct. it can. As a result, it is possible to connect the two carrier tapes Tc without wastefully discarding the component e housed in the cavity Ct and so that there is no empty cavity Ct between the two carrier tapes Tc to be connected. it can.

  According to the above-described embodiment, component detection is performed on the presence or absence of the component e stored in the cavity Ct of the carrier tape Tc, and the tape transport unit 51a that transports the carrier tape Tc inserted into the splicing device 20 to the splicing position Ls. Based on the component detection unit 53a that detects at the position Ld1 and the carrier detection unit 53a outputting the signal with the component N times in succession with the conveyance of the carrier tape Tc by the tape conveyance unit 51a, in the cavity Ct. When the storage start position determination unit (step 114) for determining the storage start position of the component and the storage start position determination unit (step 114) determine the storage start position of the component e, the cutting part CU of the carrier tape Tc is determined. The amount of overrun of the component detection unit 53a is calculated, and the tape transport unit 51a is moved in the reverse direction. A tape positioning control unit (step 200) that performs fixed driving, and a cutting portion CU of the carrier tape Tc that is disposed on the splicing position Ls side from the component detection unit 53a and is positioned at the tape cutting position Lc1 by the tape positioning unit (step 200). And a tape cutting part 55a for cutting.

  Thereby, even if the interval between the component detection position Ld1 and the tape cutting position Lc1 is small, the carrier tape Tc can be surely cut at the cutting portion CU between the cavity Ct in which the component e is stored and the empty cavity Ct. it can. As a result, it is possible to connect the two carrier tapes Tc without wastefully discarding the component e housed in the cavity Ct and so that there is no empty cavity Ct between the two carrier tapes Tc to be connected. it can.

  According to the above-described embodiment, since the interval between the component detection position Ld1 and the tape cutting position Lc1 is made smaller than the transport amount of the carrier tape Tc required for outputting the component presence signal N times continuously, splicing The device 20 can be miniaturized.

  According to the above-described embodiment, since N times is 5 times or more, even if the component detection unit 53a issues an error signal, the cavity in which the component is stored can be reliably detected.

  According to the above-described embodiment, the carrier tape Tc is at least 1 in the pitch of the A type carrier tape Tc (TcA) having the same pitch as the feed holes Hc and the pitch of the feed holes Hc. Since it consists of two types of B type carrier tape Tc (TcB) with a pitch of / 2, the cutting portion CU corresponding to the type of carrier tape Tc is determined by determining the pitch of the cavity Ct by signal processing of the component detection unit 53a. The carrier tape Tc can be positioned.

  According to the above-described embodiment, the tape transport unit 51a intermittently transports the carrier tape Tc at the pitch of the cavity Ct of the B type carrier tape Tc, and the component detection unit 53a is between the two adjacent cavities Ct. When the part is positioned at the component detection position Ld1, a component presence signal is output. Therefore, the component detection signal is continuously output twice from the component detection unit 53a, thereby increasing the pitch interval of the cavity Ct. Also in the A type carrier tape Tc, it is possible to accurately detect the storage start position of the component in the cavity Ct.

  According to the above-described embodiment, the carrier tape Tc inserted into the splicing device 20 is transported, the presence or absence of the component e stored in the cavity Ct of the transported carrier tape Tc is detected at the component detection position Ld1, Based on the fact that the component presence signal is continuously output N times at the component detection position Ld1, the storage start position of the component in the cavity Ct is determined. When the storage start position is determined, the carrier tape Tc is reversed. And a predetermined amount, and the cutting portion CU of the carrier tape Tc is positioned at the tape cutting position Lc1, and the cutting portion CU of the carrier tape Tc positioned at the tape cutting position Lc1 is cut.

  Thereby, even if the interval between the component detection position Ld1 and the tape cutting position Lc1 is small, the carrier tape Tc can be surely cut at the cutting portion CU between the cavity Ct in which the component e is stored and the empty cavity Ct. it can. As a result, it is possible to connect the two carrier tapes Tc without wastefully discarding the component e housed in the cavity Ct and so that there is no empty cavity Ct between the two carrier tapes Tc to be connected. it can.

  In the above-described embodiment, an example in which two types of carrier tapes Tc (TcA, TcB) are discriminated, cut at different cutting sites CU, and spliced has been described. However, even one type of carrier tape Tc to be spliced can be used. In addition, the cutting site CU can also be set at an arbitrary position as long as the position avoids the cavity Ct.

  In the above-described embodiment, the splicing device 20 having the configuration shown in FIG. 5 has been described as an example of the splicing device 20 suitable for implementing the present invention. However, the splicing device is not limited thereto.

  Thus, the present invention is not limited to the configurations described in the embodiments, and can take various forms without departing from the gist of the present invention described in the claims.

  The splicing device and the splicing method of the present invention can be applied to a device that positions and cuts a cutting portion of a carrier tape inserted into the device at a tape cutting position.

  10: Feeder, 20: Splicing device, 30: Control device, 40: Tape connection unit, 51a, 51b: Tape transport unit, 53a, 53b: Component detection unit, 55a, 55b: Tape cutting unit, Step 114: Storage start position Determination unit, Step 118: Return control unit, Step 120, 200: Tape positioning control unit, Ld1: Component detection position, Lc1: Tape cutting position, Ls: Splicing position, Tc: Carrier tape, Tb: Base tape, Ct: Cavity , Hc: feed hole.

Claims (7)

Two carrier tapes each having feed holes and component storage cavities provided at regular intervals are transported to a splicing position, and a splicing device for splicing the two carrier tapes at the splicing position is provided.
A tape transport unit that transports the carrier tape inserted into the apparatus to the splicing position;
A component detector for detecting the presence or absence of a component housed in the cavity of the carrier tape at a component detection position;
The storage start position for determining the storage start position of the component in the cavity based on the fact that the component detection signal is continuously output N times by the component detection unit as the carrier tape is transported by the tape transport unit. A determination unit;
When the storage start position determination unit determines the storage start position of the component, the tape transport unit is driven in a reverse direction by a predetermined amount, and the carrier tape is moved to the position where the signal with the component is first output. A return control unit,
After the carrier tape is returned to the position where the signal with the component is first output by the return control unit, the tape transport unit is driven in a forward direction by a certain amount, and the cutting portion of the carrier tape is tape-cut. A tape positioning control unit for positioning at a position;
A tape cutting unit that is disposed closer to the splicing position than the component detection unit and cuts the cutting portion of the carrier tape positioned at the tape cutting position by the tape positioning unit;
A splicing device comprising: Two carrier tapes each having feed holes and component storage cavities provided at regular intervals are transported to a splicing position, and a splicing device for splicing the two carrier tapes at the splicing position is provided.
A tape transport unit that transports the carrier tape inserted into the apparatus to the splicing position;
A component detector for detecting the presence or absence of a component housed in the cavity of the carrier tape at a component detection position;
The storage start position for determining the storage start position of the component in the cavity based on the fact that the component detection signal is continuously output N times by the component detection unit as the carrier tape is transported by the tape transport unit. A determination unit;
When the storage start position of the component is determined by the storage start position determination unit, the amount by which the cut portion of the carrier tape overruns the component detection unit is calculated, and the tape transport unit is driven in the reverse direction by a predetermined amount. A tape positioning control unit,
A tape cutting unit that is disposed closer to the splicing position than the component detection unit and cuts the cutting portion of the carrier tape positioned at the tape cutting position by the tape positioning unit;
A splicing device comprising:   The splicing according to claim 1 or 2, wherein an interval between the component detection position and the tape cutting position is made smaller than a conveyance amount of the carrier tape required for continuously outputting the signal with the component N times. apparatus.   The splicing device according to any one of claims 1 to 3, wherein the N times is 5 times or more.   The carrier tape includes at least two types of type A carrier tape in which the pitch of the cavities is the same as the pitch of the feed holes and type B carrier tape having a pitch ½ of the pitch of the feed holes. The splicing device according to any one of claims 1 to 4, comprising:   The tape transport unit intermittently transports the carrier tape at a pitch of the cavity of the B type carrier tape, and the component detection unit positions a portion between two adjacent cavities at the component detection position. The splicing device according to claim 5, wherein when it is done, a signal with parts is output. A splicing method is carried out in which two carrier tapes each having a feed hole and a part storage cavity are provided at regular intervals, and the two carrier tapes are spliced at the splicing position.
Transport the carrier tape inserted in the device,
The presence or absence of a component housed in the cavity of the carrier tape that has been conveyed is detected at a component detection position,
Based on the fact that a signal indicating that there is a component is output N times continuously at the component detection position, determine the storage start position of the component in the cavity,
When the storage start position is determined, the carrier tape is driven by a predetermined amount in the reverse direction, and the cutting portion of the carrier tape is positioned at the tape cutting position,
A splicing method for cutting the cutting portion of the carrier tape positioned at the tape cutting position.

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