JP4460886B2 - Cart for electronic component supply - Google Patents

Description

  The present invention relates to a carriage for an electronic component supply unit for exchanging a so-called part feeder that supplies an electronic component by feeding out a tape containing the electronic component.

As an electronic component mounting apparatus for mounting electronic components on a substrate, there is a so-called parts feeder type electronic component mounting apparatus 1 shown in FIG. The parts feeder 3 is an apparatus for supplying electronic components by feeding the tape from a reel 3a around which a tape containing electronic components is wound. The electronic component mounting apparatus 1 includes a plurality of parts feeders 3 arranged in parallel. The electronic component supply unit 2 is configured. In such an electronic component mounting apparatus 1, the electronic component supply unit 2 is configured to be detachable with respect to the main body 1 a of the mounting apparatus 1. For example, the production of a certain type of circuit board ends and another type of circuit is provided. When starting production of a substrate or the like, the electronic component supply unit 2 having a plurality of parts feeders 3 is removed from the main body 1a and is replaced with a new electronic component supply unit 2 at a time. That is, as shown in FIG. 9, the plurality of parts feeders 3 are placed on the transport cart 4, and at the time of replacement, the operator can place the current transport cart 4 with the parts feeder 3 placed on the main body 1 a. The new carriage 4 on which the new parts feeder 3 is placed is connected to the main body 1a (see, for example, Patent Document 1).
JP-A-8-148882

  The mounting level of the electronic component supply unit 2 in the main body 1a, that is, the height from the floor surface varies for each electronic component mounting apparatus 1 and absorbs the variation, and also the electronic component supply unit 2 for the main body 1a. The transport cart 4 is configured to be able to move up and down the mounting table 5 of the parts feeder 3 by about several tens of millimeters so that the connecting operation is smoothly performed. As disclosed in Patent Document 1, the conventional transport cart 4 is provided with an elevating device having an elevating air cylinder, a hydraulic jack, and the like for elevating the mounting table 5. Therefore, the number of parts of the transport cart 4 is increased, which is one of the causes of cost increase. Moreover, since it is necessary to drive the lifting / lowering device, when attaching / detaching the transport carriage 4 to / from the main body 1a, it is necessary to attach / detach power means such as air or electric power as advance preparation, and the preparation time for replacement work becomes longer. The replacement work is time-consuming, and as a result, the operation rate of the mounting apparatus 1 is reduced.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a cart for an electronic component supply unit that can reduce the cost and improve the operating rate of the mounting apparatus.

According to the electronic component supply unit carriage of the first aspect of the present invention, the column unit erected on the pedestal with casters,
An elevating unit having a mounting table for mounting a component supplying unit for supplying electronic components, and elevating and lowering along the elevating direction while being slidably supported and guided by the support column;
One end portion is a force point, the other end portion is an action point, the action point is rotatably engaged with the elevating part, and a fulcrum located in the vicinity of the action point is supported by the support column. An operation member that raises the component supply unit of the elevating unit along the elevating direction by depressing the unit from the initial position to the pressed position ,
When the operation member is located at the initial position, the height of the center position of the fulcrum member provided on the support column and engaged with the fulcrum is equal to or less than the height of the center position of the action point in the vertical direction. It is located in .

The strut includes a fixed post member which is erected and fixed to the pedestal is supported on the fixed pillar member slidably along the lifting direction, and supporting and guiding the lifting unit, and the It can be configured to have a movable pole member having a member for supporting point.

  The operation member can be configured to have a bending mechanism that enables the operation member to be bent at a substantially intermediate portion between the one end and the other end.

  The electronic component supply unit carriage includes an up / down air cylinder, a hydraulic jack, etc. It is not necessary to provide a lifting device having Therefore, the number of parts does not increase, and the cost can be reduced. Further, since the lifting device is not provided, the time required for attaching and detaching the power means can be reduced, the time required for replacing the component supply unit can be shortened as compared with the prior art, and the operating rate of the mounting device can be improved. be able to.

  In addition, when the operation member is located at the initial position, the center of the fulcrum member that engages the fulcrum of the operation member is positioned below the center of the action point, so This distance gradually increases as the operation member is pushed down from the initial position. Therefore, for the operator, the minimum force is sufficient at the start of pressing down, and thereafter the pressing force is gradually increased. Such a change in force is light when starting the movement of the operation member that is initially stopped, and becomes heavy when connecting the component supply unit to the mounting device, that is, when fine adjustment of raising and lowering of the component supply unit is required. The operability and workability for the operator are very good. Therefore, the time required for the replacement work of the component supply unit can be shortened compared to the conventional case, and the operating rate of the mounting apparatus can be improved.

  The column part is composed of a fixed column member and a movable column member, and the movable column member is configured to support the elevating unit, so that the movable column member is moved up and down with respect to the fixed column member and from the floor surface to the component supply unit Can be adjusted. Therefore, for example, even when the component supply unit cannot reach the connection position with the component mounting apparatus by the lifting operation by the operation member, the above-described operation can be performed by raising the movable column member with respect to the fixed column member. The component supply unit can be made to reach the connection position.

  In order for the operator to move the component supply unit up and down with a smaller force, the operation member should be longer, but the long operation member is an obstacle when not operated, and takes up unnecessary space. Therefore, by providing the operation member with a bending mechanism, it is possible to prevent the operation member from occupying an unnecessary space. Therefore, space saving of the whole component mounting apparatus can be achieved.

A component supply truck that is an embodiment of the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected about the same component.
The component supply unit carriage 100 shown in FIG. 1 includes a column part 110, an elevating part 130, and an operation member 150 as basic components, and includes a plurality of parts feeders 3 indicated by phantom lines. The electronic component supply unit 2 can be lifted and lowered along the lifting direction 180 by the operator operating the operation member 150. Reference numeral 172 denotes a box for storing the peeled cover tape generated from each parts feeder 3.

  As shown in FIG. 3, each of the support columns 110 is erected on a pedestal 170 provided with four casters 171 capable of rotating at 360 degrees so as to face each other in the left-right direction 181. And a movable column member 112 provided in a telescopic manner with respect to the fixed column member 111. The movable column member 112 penetrates through the fastening members 1111 such as bolts shown in FIG. 1 provided at two places of the fixed column member 111 along the ascending / descending direction 180, and is a long hole 1121 extending along the ascending / descending direction 180. Have Therefore, although the movable column member 112 can be fixed to the fixed column member 111 by the fastening member 1111, the movable column member 112 becomes a long hole with respect to the fixed column member 111 by loosening the fastening state of the fastening member 1111. While being supported and guided slidably in the range of 1121, it can be moved up and down along the lifting direction 180. Thus, by providing the height adjustment mechanism in the support 110, the height from the floor surface to the component supply unit 2 can be adjusted. Therefore, for example, even when the component supply unit 2 cannot reach the connection position with the component mounting apparatus by the raising / lowering operation by the operation member 150, the movable column member 112 is raised with respect to the fixed column member 111. Thus, the component supply unit 2 can be made to reach the connection position.

  Further, a fulcrum support member 1123 is fixed to the upper end portion 1122 of the movable column member 112. A fulcrum member 1124 that engages with a fulcrum 154 formed on the operation member 150 protrudes from the fulcrum support member 1123 in the left-right direction 181. In this embodiment, since the fulcrum 154 is configured in the form of a long hole, the fulcrum member 1124 is a roller that engages with the fulcrum 154.

The elevating unit 130 is provided for the pair of support columns 110 erected as described above. The elevating unit 130 is disposed between the movable column members 112 of the support column 110, is slidably supported with respect to the support column 110, and is guided and moved along the elevating direction 180 while being guided. And a mounting table 132 on which the unit 2 is mounted.
As shown in FIG. 4, the leg portion 131 includes a lower end support member 1311, a pair of column members 1312, a pair of support members 1313, and an upper end support member 1314, and the lower end support member 1311, the column member 1312, and The upper end support member 1314 constitutes a portal frame. The column member 1312 is a member that is erected on the lower end support member 1311 so as to face in the left-right direction 181, is slidable with respect to the movable column member 112, and engages with the column part 110. The upper end support member 1314 is a member that is provided at the upper end of the column member 1312 and attaches a pair of support members 1313 having an L shape for connecting the column members 1312 and mounting the mounting table 132 described above.

  As shown in FIG. 4 and the like, rollers 1315 as engaging members are attached to the column member 1312 at two places in the ascending / descending direction 180. As shown in FIG. 3, the upper end roller 1315-1 engages with an elongated hole 1125-1 as an engaged portion formed in the upper end portion 1122 of the movable column member 112 along the ascending / descending direction 180. The roller 1315-2 on the lower end side is connected to the elongated hole 1125-2 as the engaged portion formed in the lower end portion of the movable column member 112 along the ascending / descending direction 180 and the lower end portion 1112 of the fixed column member 111. It engages with a long hole 1113 as an engaged portion formed along the ascending / descending direction 180. Therefore, since each roller 1315 can move along the extending direction of each elongated hole 1125, 1113 in the support column 110, that is, the lifting / lowering direction 180, the leg 131 is supported and guided by the support column 110 and the lifting / lowering direction 180. Can be moved up and down.

A pair of support members 1313 attached to the upper end support member 1314 is attached with a mounting table 132 on which a plurality of parts feeders 3 are mounted and arranged in parallel in the left-right direction 181. Therefore, the elevating unit 130 can be moved up and down with respect to the column unit 110 in a state where the component supply unit 2 in which a plurality of parts feeders 3 are arranged is placed.
In addition, since the raising / lowering part 130 can be raised / lowered with respect to the support | pillar part 110 as mentioned above, if the raising / lowering part 130 falls from the raised state, it will give an impact to the components supply part 2, Therefore A lower end support member 1311 The shock absorber 133 is provided between the pedestal 170 and the pedestal 170. The shock absorber 133 is of a type that can lower the elevating unit 130 at the same speed over the entire range in which the elevating unit 130 descends from the raised state to the lowered state.

As shown in FIGS. 3 and 5, the operation member 150 includes a pair of plate-like members 151 and a rod-like gripping member 152 that connects one end portion 151 a of each plate-like member 151. To form a U-shape. Such an operation member 150 functions as an insulator having the one end portion 151 a as a force point, the other end portion 151 b of the plate-like member 151 as an action point 153, and a vicinity of the action point 153 as a fulcrum 154. The action point 153 is rotatably supported by the left and right end portions 1314a shown in FIG. 4 in the upper end support member 1314 of the leg portion 131 that can be raised and lowered along the raising and lowering direction 180 as described above. On the other hand, the fulcrum 154 has an elongated hole shape in this embodiment, and is engaged and supported by a fulcrum member 1124 attached to a fulcrum support member 1123 fixed to the movable column member 112 in the support column 110 described above. .
By adopting a configuration in which the operation member 150 is supported by the support column part 110 and the leg part 131 in this way, the operator holds the operation member 150 positioned at the initial position 155 as shown in FIG. By grasping and pressing down toward the pressing position 156, the operation member 150 rotates around the fulcrum member 1124 engaged with the fulcrum 154. Therefore, according to the lever principle, the elevating part 130 having the upper end support member 1314 rotatably supported by the action point 153 is guided by the elongated holes 1125 and 1113 of the column part 110 with which the roller 1315 is engaged. Then, it rises from the lowered position 134 toward the raised position 135 along the raising / lowering direction 180. On the other hand, from the ascending position 135 to the descending position 134, the elevating part 130 descends due to the weight of the elevating part 130, and the operation member 150 returns from the pressed position 156 to the initial position 155 along with the descent.
Although not shown, between the lower end support member 1311 and the pedestal 170 in the leg portion 131 of the elevating unit 130, the elevating of the component supply unit 2 beyond the descending position 134 and the ascending position 135 is prohibited. A stopper is provided.
In the present embodiment, the distance between the lowered position 134 and the raised position 135 is about 45 mm.

As illustrated and described, the fulcrum 154 of the operation member 150 that engages with the fulcrum member 1124 has a long hole shape, so that even if the operation member 150 rotates about the fulcrum member 1124, The action point 153 moves up and down linearly.
In the present embodiment, the fulcrum 154 has a long hole shape, but the fulcrum 154 may have a round hole and the action point 153 side may have a long hole shape.
In addition, the initial position 155 is a position in a state where the operation member 150 is inclined upward at an angle of about 45 degrees with respect to the horizontal direction as illustrated in the present embodiment.
As described above, the operation member 150 rotatably supported by the left and right end portions 1314a of the upper end support member 1314 of the leg portion 131 is formed of a plate material except for the gripping member 152, so that the left and right end portions 1314a are formed. The amount of protrusion in the left-right direction is suppressed, and the component supply unit carriage 100 is made compact.

  Conventionally, since the raising / lowering operation of the component supply unit 2 has been performed by the raising / lowering device, it is not necessary to consider the operability for the operator in the conventional raising / lowering operation. Since the operator performs the raising / lowering operation of the supply unit 2, it is necessary to ergonomically consider the pushing-down operation of the operation member 150 from the standpoint of the operator. That is, from the viewpoint of the operator, when starting to push down the operation member 150 that is stopped at the initial position 155, a relatively small force is preferable. On the other hand, as will be described later in the description of the operation, the component supply unit When connecting 2 to the mounting device, that is, when fine adjustment of raising / lowering of the component supply unit 2 is required, it is considered that the above fine adjustment can be easily performed by suppressing the raising / lowering easily. Conceivable. On the other hand, since the operating point 153 moves linearly along the ascending / descending direction 180 as described above by the rotation of the operation member 150 around the fulcrum member 1124, the center position 1124a of the fulcrum member 1124 The distance connecting the center point 153a of the action point 153 changes as the operation member 150 rotates. Since the length of the operation member 150 is constant, the longer the distance is, the shorter the distance between the fulcrum 124 and the power point of the operation member 150 is, and a greater force is required. Therefore, in order to gradually increase with a small force as described above, the distance connecting the center position 1124a of the fulcrum member 1124 and the center position 153a of the action point 153 becomes longer as the operation member 150 rotates. Change as you go. For this purpose, the center position 1124a of the fulcrum member 1124 may be positioned at the same height as the center position 153a of the action point 153 or below the center position 153a in the vertical direction parallel to the ascending / descending direction 180. Therefore, in the present embodiment, as shown in FIGS. 1 and 6, when the operation member 150 is located at the initial position 155, that is, when the component supply unit 2 is located at the lowered position 134, the center of the fulcrum member 1124. The position 1124a and the center position 153a of the action point 153 are arranged so as to be aligned at the same height in the vertical direction, that is, in the horizontal direction. As described above, since the fulcrum member 1124 is slidably fitted to the fulcrum 154 formed of a long hole without being rattled, the center position 1124a of the fulcrum member 1124 is the center position of the fulcrum 154. It can be identified with 154a.

  By arranging the center position 1124a and the center position 153a as described above, the center position 1124a and the center position 153a are connected when the operation member 150 is located at the pressed position 156 as shown in FIG. The distance L2 is longer than the distance L1 connecting the center position 1124a and the center position 153a when the operation member 150 is located at the initial position 155. Therefore, when the operation member 150 is positioned at the initial position 155, the operator is relatively small, and when the operation member 150 is positioned near the pressing position 156, that is, when the component supply unit 2 is connected to the mounting apparatus. It is possible to work with a large force, and the operability and workability are very good for the operator. Therefore, the time required for the replacement work of the component supply unit can be shortened compared to the conventional case.

Further, in the present embodiment, as shown in FIG. 8, after the component supply unit carriage 100 is loaded into the main body 1a of the component mounting apparatus 1, the component supply unit carriage 100 is made compact in order to reduce the size of the operation member. Reference numeral 150 denotes a structure having a bending mechanism 157 that can be bent at the center of each plate-like member 151. The bending mechanism 157 will be described below.
As shown in FIG. 5, each plate-shaped member 151 includes a first member 151-1 having the action point 153 and the fulcrum 154, and a second member 151-1 provided with a gripping member 152 at one end portion 151 a serving as a power point. 2. The second member 151-2 is connected to the first member 151-1 so as to be rotatable by a pivot 1571 provided on the first member 151-1 and constituting the bending mechanism 157. It can be rotated between a work position 1572 and a folding position 1573. Each plate-like member 151 is provided with a positioning plate 1574 constituting the bending mechanism 157 for positioning and fixing the second member 151-2 at the working position 1572 and the folding position 1573. Is attached to the second member 151-2 so as to be movable in the direction of the arrow 1574c. One end 1574a of the positioning plate 1574 can be engaged with an engaging portion 1575 formed on the first member 151-1, and the other end 1574b of the positioning plate 1574 is disposed, for example, in parallel with the gripping member 152. When the second member 151-2 is to be positioned at the working position 1572 and the folding position 1573, the second member 151-2 is connected to a bar 1576 that can be operated by the operator's finger and constitutes the bending mechanism 157. Further, the one end 1574a is disposed between the positioning plate 1574 and the second member 151-2 so that the one end 1574a of the positioning plate 1574 can be automatically engaged with the engaging portion 1575. A spring 1577 as an urging member for urging is attached. Therefore, one end 1574a of the positioning plate 1574 is always biased to the first member 151-1 by the spring 1577. However, as described above, the operator can move the second member 151 to the working position 1572 and the folding position 1573. -2 is to be positioned, the operator pulls the bar 1576 toward the gripping member 152, so that the positioning plate 1574 moves in the direction of the arrow 1574c against the inelastic force of the spring 1577, and one end 1574a of the positioning plate 1574 And the engagement portion 1575 are disengaged.

  When returning the second member 151-2 located at the folding position 1573 to the work position 1572, the operator simply lifts the second member 151-2 so that the one end 1574a of the positioning plate 1574 becomes the first member. When the second member 151-2 reaches the working position 1572 while being urged by the force 151-1 and slides on the end surface of the first member 151-1, the engagement portion 1575 is automatically moved by the urging force of the spring 1577. Engaging. Of course, when returning the second member 151-2 to the work position 1572, the operator operates the bar 1576 to move the positioning plate 1574, and when the second member 151-2 reaches the work position 1572, The positioning plate 1574 may be engaged with the engaging portion 1575 by the urging force of the spring 1577 by releasing the hand from the bar 1576.

The operation of the component supply unit carriage 100 configured as described above, that is, the replacement operation of the component supply unit 2 in the electronic component mounting apparatus 1 will be described below.
When replacement of the component supply unit 2 becomes necessary, a component supply unit cart 100 on which the replacement component supply unit 2 is placed is prepared, and the operator supplies the component supply unit cart 100 to the electronic component mounting apparatus. 1 to the main body 1a. At the time of conveyance, the operation member 150 of the component supply unit carriage 100 is positioned at the initial position 155 as shown in FIG. Further, the second member 151-2 of the operation member 150 is located at the work position 1572.
On the other hand, the component supply unit 2 to be replaced is separated from the main body 1a of the electronic component mounting apparatus 1 together with the carriage.

When a new component supply unit 2 placed on the component supply unit cart 100 is loaded into the main body unit 1a of the electronic component mounting apparatus 1, the height of the main body unit 1a from the floor and the components of the component supply unit vehicle 100 are In order to adjust the height of the supply unit 2 from the floor surface, the operator holds the grip member 152 in the operation member 150 and presses the operation member 150 located at the initial position 155 as shown in FIG. By pushing down toward the position 156, the component supply unit 2 located at the lowered position 134 is raised toward the raised position 135, and the height is adjusted so that the above-described heights coincide with each other. And the component supply part 2 is connected with the main-body part 1a of the electronic component mounting apparatus 1, performing this adjustment.
During the connecting operation, as described above, when the operation member 150 located at the initial position 155 is pushed down, the operator needs a relatively small force, and when performing the height adjustment, a relatively large force is required. The connecting operation can be performed with good workability.

  After the completion of the loading, in order to save the space of the parts supply section carriage 100, as shown in FIG. 8, the operator operates the bar 1576 as described above to locate the first position located at the work position 1572. The two members 151-2 are preferably positioned at the folding position 1573. By positioning the second member 151-2 at the folding position 1573 in this way, the position of the gripping member 152 provided at the one end 151a of the operation member 150 is set to the protruding position of the reel 3a of the component supply unit 2. The parts can be substantially in the same position, and can be accommodated in the rear end position 101 of the component supply unit carriage 100.

When the component supply unit 2 is separated from the main body 1a of the electronic component mounting apparatus 1 together with the component supply unit cart 100, the component supply unit cart 100 may be separated from the main unit 1a, contrary to the loading. At this time, in the component supply unit 2, the state of being placed on and supported by the main body unit 1 a is released, so that the component supply unit 2 descends toward the lowered position 134 mainly by the weight of the component supply unit 2. . In the descending operation, since the shock absorber 133 is provided in the support column 110 as described above, the descending speed of the support column 110 is limited, and the lower end support member 1311 of the support column 110 can be prevented from colliding with the descending end. .
This completes the replacement operation of the component supply unit 2.

  The cart for an electronic component supply unit of the present invention can be used in an electronic component mounting apparatus provided with a component supply unit having a so-called parts feeder.

It is a side view of the trolley | bogie for electronic component supply parts which is embodiment of this invention. It is a figure for demonstrating operation | movement of the member for operation in the trolley | bogie for electronic component supply parts shown in FIG. It is an assembly drawing of the trolley | bogie for electronic component supply parts shown in FIG. It is an assembly drawing of the raising / lowering part of the trolley | bogie for electronic component supply parts shown in FIG. It is a figure which shows the member for operation of the trolley | bogie for electronic component supply parts shown in FIG. It is a figure for demonstrating the positional relationship of the action point and fulcrum in the operation member of the trolley | bogie for electronic component supply parts shown in FIG. It is a figure for demonstrating operation | movement of the trolley | bogie for electronic component supply parts shown in FIG. It is a figure for demonstrating operation | movement of the trolley | bogie for electronic component supply parts shown in FIG. It is a perspective view which shows the conventional exchange trolley | bogie.

Explanation of symbols

2 ... parts supply unit,
110: support column, 111: fixed column member, 112: movable column member, 130 ... elevating unit,
132 ... mounting table, 150 ... operating member, 151a ... one end, 151b ... other end,
153 ... operating point, 154 ... fulcrum, 155 ... initial position, 156 ... pressed position,
157 ... bending mechanism, 170 ... pedestal, 171 ... casters, 180 ... elevating direction,
1124: A fulcrum member.

Claims (3)

A support column (110) erected on a pedestal (170) with casters (171);
A lifting / lowering unit (132) having a mounting table (132) for mounting a component supply unit (2) for supplying electronic components, and being lifted and lowered along a lifting / lowering direction (180) while being slidably supported and guided by the support column. 130),
One end (151a) is a force point, and the other end (151b) is an action point (153). The action point is pivotally engaged with the elevating part and is located near the action point (154). Is supported by the support column, and the one end is pushed down from the initial position (155) to the pressed position (156) to raise the component supply unit of the lifting unit along the lifting direction ( 150),
When the operation member is located at the initial position, in the vertical direction, the height of the center position of the fulcrum member (1124) provided on the support column and engaged with the fulcrum is the center position of the action point. A cart for an electronic component supply unit, which is located below a height. The support column is supported by the fixed column member (111) that is fixedly installed on the pedestal and slidable along the up-and-down direction, and supports and guides the up-and-down unit. and it has a movable post member (112) having the supporting point member (1124), the electronic component supply unit for truck of claim 1, wherein.   3. The electronic component supply unit according to claim 1, wherein the operation member has a bending mechanism (157) that allows the operation member to be bent at a substantially intermediate portion between the one end and the other end. Trolley.

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