JP2017152455A - Feeder replacement carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeder replacement carriage that can move stably and is excellent in mounting area efficiency.SOLUTION: A feeder replacement carriage 10 includes a reel holding portion 18 for holding a reel 17 around which a carrier tape 16 containing an electronic component is wound, a feeder holding unit 15 for holding a tape feeder 4 for performing a feeding operation of the carrier tape 16, and a base unit including a pair of front wheels 11a and a pair of rear wheels 11b and telescopic means (front base 12a, rear base 12b) for enabling the interval between the pair of front wheels 11a and the pair of rear wheels 11b to be lengthened and shortened. The interval between the front wheels 11a and the rear wheel 11b is shortened by the telescopic means under a state where the front wheels 11a and the rear wheels 11b are installed in an electronic component mounting apparatus 2, and the interval between the front wheels 11a and the rear wheels 11b is lengthened by the telescopic means under a state where the front wheels 11a and the rear wheels 11b are not installed in the electronic component mounting apparatus 2.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a feeder exchanging carriage that has a plurality of tape feeders attached to an upper portion thereof and is detachably supplied to an electronic component mounting apparatus.

  As an electronic component supply device that supplies an electronic component to an electronic component mounting apparatus, a tape feeder that supplies an electronic component accommodated in a carrier tape by tape feeding is widely used. In the electronic component mounting apparatus, when a mounting condition such as a change in the type of substrate to be mounted is changed, the tape feeder is replaced with one that supplies the corresponding electronic component. In order to shorten the replacement time of this tape feeder, a method is known in which the tape feeders are replaced at once by attaching and detaching a feeder replacement carriage with a plurality of tape feeders mounted in parallel on the electronic component mounting device. (For example, Patent Document 1).

  The feeder exchanging cart also holds a reel on which a carrier tape supplied by the tape feeder is wound, and has a wheel on the lower side so that it can run freely. This facilitates attachment / detachment to / from the electronic component mounting apparatus and movement while being detached from the electronic component mounting apparatus. The replacement of the tape feeder using such a feeder replacement carriage is performed by removing the feeder exchange carriage already mounted on the electronic component mounting apparatus and mounting the tape feeder corresponding to the production of the next board prepared in advance. This is done by carrying the feeder exchange cart to the electronic component mounting apparatus and mounting it.

Japanese Patent Laid-Open No. 2008-21669

  By the way, in order to improve factory floor productivity (the number of electronic component mounting apparatuses installed per floor area), it is desired to reduce the size of the electronic component mounting apparatus (reduction of the installation area). In order to reduce the length of the electronic component mounting device (length in the tape feed direction with the tape feeder attached), the length of the tape feeder (tape feed direction) is reduced and the tape feeder is attached. It is necessary to reduce the depth of the feeder exchanging carriage (the length in the tape feeding direction with the tape feeder attached).

  On the other hand, the height at which the tape feeder is mounted on the electronic component mounting apparatus needs to be the same as that of the old apparatus in order to maintain compatibility. As a result, there were the following problems. That is, the position (height) of the center of gravity of the feeder exchanging carriage on which the tape feeder is mounted is determined by the height at which the heavy tape feeder is mounted. On the other hand, when the depth of the feeder exchange cart is reduced, the support base area determined by the position of the wheel supporting the feeder exchange cart is reduced. For this reason, there is a problem that the feeder exchanging carriage removed from the electronic component mounting apparatus is unstable and easily falls.

  Then, an object of this invention is to provide the feeder exchange trolley which can move stably and is excellent in installation area efficiency.

  A feeder exchanging carriage according to the present invention includes a reel holding unit that holds a reel around which a carrier tape containing electronic components is wound, a feeder holding unit that holds a tape feeder that performs a feeding operation of the carrier tape, a pair of front wheels, A feeder exchange carriage having a pair of rear wheels, and a base portion including a telescopic means capable of expanding and contracting a distance between the pair of front wheels and the pair of rear wheels, and mounted on an electronic component mounting apparatus Then, the interval is shortened by the expansion / contraction means, and the interval is extended by the expansion / contraction means when the electronic component mounting apparatus is not mounted.

  ADVANTAGE OF THE INVENTION According to this invention, the feeder exchange trolley | bogie which can move stably and is excellent in installation area efficiency is realizable.

Production line layout of an embodiment of the present invention Structure explanatory drawing of the feeder exchange trolley | bogie of one embodiment of this invention Explanatory drawing which shows the state which folded the handle | steering-wheel part of the feeder exchange trolley | bogie of one embodiment of this invention (A) (b) Process explanatory drawing which mounts the feeder exchange trolley | bogie of one embodiment of this invention in an electronic component mounting apparatus (A) (b) Process explanatory drawing which mounts the feeder exchange trolley | bogie of one embodiment of this invention in an electronic component mounting apparatus (A) (b) Process explanatory drawing which removes the feeder exchange trolley | bogie of one embodiment of this invention from an electronic component mounting apparatus (A) (b) Process explanatory drawing which removes the feeder exchange trolley | bogie of one embodiment of this invention from an electronic component mounting apparatus

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The configuration, shape, and the like described below are examples for explanation, and can be appropriately changed according to the specifications of the electronic component mounting apparatus and the feeder exchange carriage. Below, the same code | symbol is attached | subjected to the element which respond | corresponds in all the drawings, and the overlapping description is abbreviate | omitted.

  First, a production line 1 for producing a mounting board in which electronic components are mounted on a board will be described with reference to FIG. The production line 1 is configured by arranging a series of mounting lines 3 configured by connecting a plurality of electronic component mounting apparatuses 2 in two rows. The electronic component mounting apparatus 2 includes a tape feeder mounting portion 5 that detachably mounts the tape feeder 4, and a plurality of tape feeders 4 mounted on the feeder exchange cart 10 are configured to be detachable in a lump. .

  Each part of the electronic component mounting apparatus 2 is controlled by a device control unit 6 built in the electronic component mounting apparatus 2, and the electronic components sequentially supplied from the tape feeder 4 mounted on the tape feeder mounting section 5 are mounted on the mounting head 7. Is picked up and transferred to the substrate 8. In each mounting line 3, the same board | substrate 8 is conveyed toward the downstream from upstream, and various electronic components are mounted in order in each electronic component mounting apparatus 2 arrange | positioned continuously.

  In FIG. 1, the inter-column distance L1 of the two mounting lines 3 is the size of the electronic component mounting apparatus 2 in the inter-column distance L1 direction and the tape feeder mounted on the electronic component mounting apparatus 2 of the adjacent mounting line 3. 4 is determined by the distance L2 between the four. The distance L2 is used to replace the work space of the operator who operates the electronic component mounting apparatus 2 between the adjacent mounting lines 3 and the tape feeder 4 mounted on the tape feeder mounting portion 5 with another tape feeder 4. The operator is set from the viewpoint of securing a space for the operator to operate the feeder exchange carriage 10 to be attached to and detached from the tape feeder mounting portion 5 (arrow a).

  Next, the configuration of the feeder exchange cart 10 will be described with reference to FIGS. Hereinafter, in the feeder exchanging carriage 10, the side to be mounted on the tape feeder mounting portion 5 is the front side, the opposite side of the front side is the rear side, the right viewed from the rear side is the right side, and the left is the left side.

  In FIG. 2, the feeder exchanging carriage 10 includes a front base 12a having a pair of left and right front wheels 11a below and a rear base 12b having a pair of left and right rear wheels 11b below and slidable back and forth along the front base 12a. It is configured to include. When the rear base 12b is slid rearward along the front base 12a, the distance between the front wheel 11a and the rear wheel 11b is extended, and when the rear base 12b is slid forward along the front base 12a, the front wheel 11a and the rear wheel 11b are The interval is shortened. That is, the front base 12a and the rear base 12b serve as expansion / contraction means that can expand and contract the distance between the pair of front wheels 11a and the pair of rear wheels 11b.

  In FIG. 2, a support base 13 is disposed above the front base 12a. A slide bush 14 is disposed on the upper surface of the support base 13. The slide bush 14 supports the shaft 14a so as to be slidable in the vertical direction, and supports the feeder holding portion 15 connected to the upper end of the shaft 14a so as to be movable up and down. That is, the slide bush 14 and the shaft 14a serve as lifting means for supporting the feeder holding portion 15 so as to be movable up and down with respect to the front base 12a. When a carriage pulling mechanism 5b to be described later raises the feeder holding unit 15 to a component supply height for supplying electronic components in the electronic component mounting apparatus 2, the shaft 14a is pulled upward by being driven by the feeder holding unit 15. When the carriage retracting mechanism 5b holding the feeder holding unit 15 moves downward, the feeder holding unit 15 is lowered to the conveyance height.

  A plurality of tape feeders 4 are mounted in parallel on the upper surface of the feeder holding portion 15. The tape feeder 4 sequentially feeds the electronic components by sequentially feeding the carrier tape 16 containing the electronic components to the front side. That is, the feeder holding unit 15 holds the tape feeder 4 that performs the feeding operation of the carrier tape 16. On the rear side of the upper surface of the support base 13, a reel holding portion 18 that holds a reel 17 around which the carrier tape 16 is wound is disposed. The carrier tape 16 drawn from the reel 17 held by the reel holding unit 18 is mounted on the tape feeder 4 held by the feeder holding unit 15. That is, the reel holding unit 18 holds the reel 17 around which the carrier tape 16 containing the electronic components is wound.

  As described above, the reel holding unit 18, the feeder holding unit 15, the pair of front wheels 11 a and the pair of rear wheels 11 b, the front base 12 a and the rear base 12 b (extension / contraction means) constitute a base unit included in the feeder exchange carriage 10.

  In FIG. 2, a pair of lower handles 20 extending vertically and inclined upward on the rear side on the rear side of the support base 13 on the rear side of the rear base 12 b are fixed by a fixing tool 19. . A lower end of a pair of upper handles 21 extending vertically is connected to a first rotating shaft 20 a provided at the upper ends of the pair of lower handles 20. Between the upper ends of the left and right upper handles 21, a gripping rod 22 that is gripped when an operator steers the feeder exchange cart 10 is disposed. When the operator lowers the holding rod 22 downward, the upper handle 21 is folded downward with the fixed first rotating shaft 20a as a fulcrum. That is, the pair of lower handles 20, the pair of upper handles 21, the first rotating shaft 20a, and the gripping rod 22 are provided on the rear base 12b (on the rear wheel 11b side of the base portion) and constitute a foldable handle portion.

  A folding lock member 23 that covers the outer periphery of the upper handle 21 and is slidable along the upper handle 21 is disposed on a part of the upper handle 21. The folding lock member 23 is a lock that covers a part of the upper portion of the lower handle 20 across the first rotation shaft 20a as a fulcrum in a state where the upper handle 21 and the lower handle 20 are in a straight line by raising the grip rod 22. The folding of the upper handle 21 is suppressed by moving to the position. That is, the folding lock member 23 serves as a folding lock unit that suppresses the folding operation of the handle portion in a state where the handle portion is raised. Further, when the folding lock member 23 is moved to a position higher than the unlocking position above the first rotation shaft 20a, the upper handle 21 can be folded (see also FIG. 3).

  In FIG. 2, the upper ends of a pair of connecting rods 24 extending vertically are connected to a second rotating shaft 21 a provided at a predetermined position in the middle of the upper handle 21. The connecting rod 24 swings back and forth around the second rotation shaft 21a. A top portion of a mountain-shaped swinging member 25 is connected to a third rotating shaft 20 b provided at the lower end of the fixed lower handle 20. The swing member 25 swings back and forth about the third rotation shaft 20b. The rear skirt portion of the swing member 25 is connected to a fourth rotating shaft 24 a provided at the lower end of the connecting rod 24. A front skirt portion of the swing member 25 is connected to a fifth rotating shaft 25a provided at a predetermined position above the rear base 12b.

  In the state shown in FIG. 2 where the upper handle 21 is raised (hereinafter referred to as “conveyance state”), the connecting rod 24 moves upward to lift the rear side of the swing member 25 upward, and the swing member 25. The rear base 12b moves to the rear side by moving the front side of the rear side, and the distance between the front wheel 11a and the rear wheel 11b is extended to the length L3 (see FIG. 3). In the state shown in FIG. 3 in which the upper handle 21 is folded (hereinafter referred to as the “storing state”), the connecting rod 24 moves downward to push the rear side of the swing member 25 downward, and the swing member When the front side of 25 moves to the front side, the rear base 12b moves to the front side, and the distance between the front wheel 11a and the rear wheel 11b is shortened to a length L4.

  That is, the connecting rod 24 and the swing member 25 engage the handle portions (upper handle 21 and lower handle 20) and the expansion / contraction means (rear base 12b), and the movement of the handle portion due to the folding operation and the raising operation becomes the expansion / contraction means. It becomes a link means to transmit. The distance between the front wheel 11a and the rear wheel 11b is shortened to the length L4 by the folding operation of the handle portion (upper handle 21), and the distance between the front wheel 11a and the rear wheel 11b is increased by the raising operation of the handle portion (upper handle 21). Expanded to length L3.

  In FIG. 2, the feeder holding portion 15 is provided with a locking rod 26 that extends downward and a lower locking portion 26 a reaches the rear base 12 b and is moved up and down following the feeder holding portion 15. . When the feeder holding carriage 15 is lowered to the conveying height while the feeder exchanging carriage 10 is in the conveying state, that is, the distance between the front wheel 11a and the rear wheel 11b is extended to the length L3, the locking portion 26a is engaged with the rear base 12b. Together, the back and forth slide of the rear base 12b with respect to the front base 12a is suppressed (state shown in FIG. 2). When the feeder holding part 15 rises to the supply height in this state, the locking part 26a is released, and the back and forth sliding of the rear base 12b with respect to the front base 12a is permitted (state of FIG. 3).

  That is, the locking rod 26 provided with the locking portion 26a is connected to the feeder holding portion 15, and allows the expansion / contraction means (the front base 12a and the rear base 12b) to expand and contract while the feeder holding portion 15 is raised, to hold the feeder. It becomes a locking member that suppresses expansion and contraction of the expansion and contraction means in a state where the portion 15 is lowered. The locking member (locking rod 26) constitutes a slide lock means that suppresses shortening of the expansion / contraction means (the front base 12a and the rear base 12b).

  In FIG. 2, a sensor for detecting that the expansion / contraction means (the front base 12a and the rear base 12b) extends above the front base 12a and the distance between the front wheel 11a and the rear wheel 11b is the length L3 (conveyance state). S is arranged. The sensor S is a transmissive laser sensor that detects the front end of the rear base 12b. When the distance between the front wheel 11a and the rear wheel 11b is shorter than the length L3, the rear base 12b shields the light, and the distance between the front wheel 11a and the rear wheel 11b is increased. The length L3 is set to be transparent. Thus, the sensor S detects a state where the expansion / contraction means is extended. The sensor S is not limited to this configuration, and any sensor can be used as long as it can detect that the distance between the front wheel 11a and the rear wheel 11b is extended to the length L3. It may be configured with such as.

  In FIG. 2, on the front side of the support base 13, a cart side connection portion 27 is arranged at a position corresponding to the device side connection portion 5 a (see FIG. 4) provided in the tape feeder mounting portion 5 of the electronic component mounting apparatus 2. It is installed. In a state where the feeder exchange cart 10 is mounted on the tape feeder mounting portion 5, the apparatus-side connecting portion 5 a and the cart-side connecting portion 27 are connected, and the power and air supplied from the electronic component mounting apparatus 2 are connected to the feeder replacing cart 10. Is done. Further, the sensor S and the feeder control unit 4 a included in the tape feeder 4 are connected to the device control unit 6 of the electronic component mounting apparatus 2. As a result, air can be supplied to the air drive unit of the feeder exchange cart 10 and the detection result of the sensor S is transmitted to the device control unit 6.

  Next, with reference to FIG. 4 and FIG. 5, the process of mounting the feeder exchange carriage 10 on the tape feeder mounting part 5 of the electronic component mounting apparatus 2 will be described in order. First, as shown in FIG. 4 (a), the operator holds the holding rod 22 of the feeder exchange carriage 10 in the transported state, and brings the feeder exchange carriage 10 closer to the tape feeder mounting portion 5 from the front side (arrow b). The front end of the tape feeder 4 held by the feeder holding unit 15 is brought into contact with the carriage pulling mechanism 5b provided in the tape feeder mounting unit 5.

  Next, as shown in FIG. 4B, when the operator gives an instruction to pull the carriage to the electronic component mounting apparatus 2, the apparatus control unit 6 controls the carriage pulling mechanism 5 b together with the mounted tape feeder 4. The feeder holding part 15 is lifted (arrow c). As the feeder holding portion 15 rises, the shaft 14a is pulled up from the slide bush 14 (arrow d), and the locking rod 26 rises. When the feeder holding portion 15 is raised to the component supply height, the engagement of the locking portion 26a with the rear base 12b is released (arrow e). In addition, a contact sensor that detects that the feeder holding portion 15 has come into contact with the carriage pulling mechanism 5b is provided, and the device control portion 6 performs the carriage drawing operation when the contact sensor detects the contact of the feeder holding portion 15. You may make it start.

  Next, as shown in FIG. 5A, the carriage pulling mechanism 5b pulls the feeder exchange carriage 10 toward the tape feeder mounting part 5 while lifting the feeder holding part 15 (arrow f). In this process, the carriage side connecting portion 27 is connected to the apparatus side connecting portion 5a (arrow g), and the attachment of the feeder exchange carriage 10 to the tape feeder attaching portion 5 is completed. Next, as shown in FIG. 5B, the operator moves the folding lock member 23 upward from the unlocking position to unlock the upper handle 21, holds the gripping rod 22, and folds the upper handle 21 ( Arrow h). In this process, the rear base 12b slides forward (arrow j), the telescopic means is shortened, and the feeder exchanging carriage 10 is in the stored state. Thereby, the electronic component can be supplied from the tape feeder 4 to the electronic component mounting apparatus 2.

  Next, with reference to FIG. 6, FIG. 7, the process of removing the feeder exchange trolley | bogie 10 from the tape feeder mounting part 5 of the electronic component mounting apparatus 2 is demonstrated in order. As shown in FIG. 6A, in a state where the feeder exchange cart 10 is mounted on the tape feeder mounting portion 5 and the tape feeder 4 supplies electronic components to the electronic component mounting apparatus 2, the feeder replacement cart 10 expands and contracts. The storage means is shortened. From this state, as shown in FIG. 6B, the operator grips the gripping rod 22, raises the upper handle 21 (arrow k), lowers the folding lock member 23 to the lock position, and moves the upper handle 21. Lock it. In this process, the rear base 12b slides to the rear side (arrow m), and the expansion / contraction means is extended to bring the feeder exchange carriage 10 into the conveying state, and the detection of the conveying state is transmitted from the sensor S to the apparatus control unit 6.

  Next, as shown in FIG. 7A, when the operator gives an instruction to push the carriage to the electronic component mounting apparatus 2, the apparatus control unit 6 controls the carriage pulling mechanism 5b to bring the feeder exchange carriage 10 to the rear side. Extrude (arrow n). In this process, the connection between the cart side connection part 27 and the apparatus side connection part 5a is released (arrow p). Next, as shown in FIG. 7B, the device controller 6 lowers the cart pull-in mechanism 5b (arrow q). In this process, the feeder holding portion 15 is lowered to the conveying height (arrow r), the locking rod 26 is lowered, the locking portion 26a is engaged with the rear base 12b (arrow t), and expansion / contraction of the expansion / contraction means is suppressed. As a result, the slide of the rear base 12b is locked. Thereby, it will be in the state which can convey the feeder exchange trolley | bogie 10. FIG.

  Thus, in the storage state where the feeder exchange cart 10 is mounted on the electronic component mounting apparatus 2, the distance between the front wheel 11a and the rear wheel 11b is shortened by the expansion / contraction means (the front base 12a and the rear base 12b). In the conveying state where the front wheel 11a and the rear wheel 11b are not attached to each other, the distance between the front wheel 11a and the rear wheel 11b is extended. And in the state which is not mounted | worn with the electronic component mounting apparatus 2, shortening of the space | interval of the front wheel 11a and the rear wheel 11b is suppressed by the slide lock means (locking rod 26). When the conveying state in which the expansion / contraction means is extended by the sensor S is detected, the carriage retracting mechanism 5b holding the feeder holding portion 15 moves downward and is supported by the lifting / lowering means (slide bush 14 and shaft 14a) to hold the feeder. The part 15 descends.

  It should be noted that the pushing operation of the feeder exchange carriage 10 by the carriage pulling mechanism 5b shown in FIGS. 7 (a) and 7 (b) is executed only when the detection of the conveyance state by the sensor S is transmitted to the apparatus controller 6. The That is, when the upper handle 21 shown in FIG. 6B is not raised, or when the raising is not complete and the rear base 12b is not slid to a predetermined conveying state, the operator can Even if the instruction to push the cart is given to the mounting device 2, the device control unit 6 does not execute the pushing operation by the cart pulling mechanism 5b. Thereby, it is possible to prevent the feeder exchanging carriage 10 from being removed from the electronic component mounting apparatus 2 in a state where it is not in the transport state.

  As described above, the feeder exchanging carriage 10 is moved in a conveying state in which the distance between the front wheels 11a and the rear wheels 11b is extended to the length L3, so that it can be moved stably even after being removed from the electronic component mounting apparatus 2. it can. In addition, after the feeder exchanging carriage 10 is mounted on the electronic component mounting apparatus 2, the electronic components are supplied from the tape feeder 4 in the storage state in which the distance between the front wheel 11a and the rear wheel 11b is shortened to the length L4. The inter-column distance L1 of the mounting line 3 shown in FIG. 1 can be reduced. Thereby, the installation area efficiency of the electronic component mounting apparatus 2 is improved.

  As described above, the feeder exchanging carriage 10 according to the present embodiment holds the reel holding portion 18 that holds the reel 17 around which the carrier tape 16 containing the electronic components is wound, and the tape feeder 4 that performs the feeding operation of the carrier tape 16. Feeder holding portion 15, a pair of front wheels 11a and a pair of rear wheels 11b, and expansion / contraction means (a front base 12a and a rear base 12b) that can expand and contract the distance between the pair of front wheels 11a and the pair of rear wheels 11b. And a base portion. When the electronic component mounting apparatus 2 is mounted, the distance between the front wheel 11a and the rear wheel 11b is shortened by the expansion / contraction means, and when the electronic component mounting apparatus 2 is not mounted, the distance between the front wheel 11a and the rear wheel 11b is decreased by the expansion / contraction means. Is stretched.

  Thereby, the feeder exchange cart 10 can be stably moved in the transported state removed from the electronic component mounting apparatus 2. Moreover, in the storage state mounted on the electronic component mounting apparatus 2, the installation area efficiency can be improved by shortening the distance between the front wheel 11a and the rear wheel 11b.

  The feeder exchange cart of the present invention has an effect that it can move stably and is excellent in installation area efficiency, and is useful in the component mounting field in which electronic components are mounted on a substrate.

2 Electronic component mounting apparatus 4 Tape feeder 10 Feeder exchange carriage 11a Front wheel 11b Rear wheel 12a Front base (extension / contraction means)
12b Rear base (expandable means)
15 Feeder holding part 16 Carrier tape 17 Reel 18 Reel holding part 20 Lower handle (handle part)
20a First rotating shaft (handle part)
21 Upper handle (handle)
22 Grip bar (handle)
23 Folding lock member (Folding lock means)
24 Connecting rod (link means)
25 Swing member (link means)

Claims (3)

A reel holding unit for holding a reel wound with a carrier tape containing electronic components;
A feeder holding unit for holding a tape feeder that performs the feeding operation of the carrier tape;
A feeder exchanging carriage having a pair of front wheels and a pair of rear wheels, and a base portion including an expansion / contraction means capable of expanding and contracting a distance between the pair of front wheels and the pair of rear wheels,
In the state of being mounted on the electronic component mounting apparatus, the interval is shortened by the expansion / contraction means,
A feeder exchanging cart in which the interval is extended by the expansion and contraction means when not mounted on the electronic component mounting apparatus. A link that is provided on the rear wheel side of the base portion, engages the foldable handle portion, the handle portion, and the expansion / contraction means, and transmits the movement of the handle portion by the folding operation and the pulling operation to the expansion / contraction means. And further comprising means,
The interval is shortened by the folding operation of the handle part,
The feeder exchange cart according to claim 1, wherein the interval is extended by the pulling operation of the handle portion.   The feeder exchange cart according to claim 2, further comprising a folding lock means for suppressing a folding operation of the handle portion in a state where the handle portion is raised.

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