JP2008207239A - Feeder for continuous material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feeder for continuous materials which can be operated at high speed and with which production cost or the like is reduced by simplifying a configuration and lightening the weight by using a ball spline for a clamping device. <P>SOLUTION: This feeder for continuous materials capable of intermittently feeding the continuous materials by using the ball spline and a cam mechanism includes: a moving clamping device 40 having a moving main body 41, a spline outer cylinder 30 rotatably held on the moving main body 41, a cam 32 fixed to the spline outer cylinder 30 and a clamp mechanism 50 capable of holding the continuous materials 10 by driving of the cam 32; a spline shaft 70 which is inserted into the spline outer cylinder 30; a rotational driving means 80 for driving each cam 32 by rotating the spline shaft 70; and a reciprocative driving means 90 for feeding the continuous material 10 by reciprocating the moving clamping device 40. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a continuous material feeding apparatus capable of intermittently feeding a continuous material such as a belt shape using a ball spline and a cam mechanism.

In a conventional continuous material feeding device having a general fixed clamping device and a moving clamping device, a clamping actuator such as an air cylinder is mounted on each clamping device.
According to this, the apparatus is easily increased in size, and the processing of compressed air piping, electrical wiring, and the like becomes complicated. Further, in the moving clamp device, the weight of the moving part increases, and the inertial force tends to increase. Therefore, high speed operation cannot be performed.

On the other hand, it is provided with a pair of gripper feeds that are installed on both the left and right sides of the press machine and are driven synchronously. Each gripper feed includes a first gripper device that can clamp and unclamp material, and a first gripper device. A second gripper device that can be reciprocated in the material conveyance direction and can clamp and unclamp the material, and when the second gripper device clamps the material at the conveyance start position, the first gripper device unclamps the material When the second gripper device moves to the conveyance end position, the first gripper device clamps the material, and the second gripper device unclamps the material and returns to the original conveyance start position. Is disclosed (see Patent Document 1).
In this device, both the clamping operation and the reciprocating motion of the second gripper device are performed by the cam device, so that the configuration is complicated and a special component is required.
JP-A-8-252740 (first page, FIG. 1)

The problem to be solved regarding the continuous material feeding device is that a device in which an actuator for clamping is mounted on the clamping device cannot be operated at high speed due to an increase in size and complexity. In addition, when special components are required, there is a problem that versatile parts cannot be used, the configuration becomes complicated, and manufacturing and maintenance management costs increase.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a continuous material feeding device that can be operated at high speed and can reduce manufacturing costs by simplifying and reducing the weight by using a ball spline, which is a general-purpose component, in the clamping device. There is.

The present invention has the following configuration in order to achieve the above object.
According to one aspect of the continuous material feeding device according to the present invention, a continuous material feeding device capable of intermittently feeding a continuous material using a ball spline and a cam mechanism, which is a linear guide fixed to a base. A movable body provided to be movable along the movable body, a spline outer cylinder held rotatably around the axis of the movable body, a cam fixed to the spline outer cylinder, and driving the cam A moving clamp device having a clamp mechanism capable of holding a continuous material, a spline shaft inserted through a spline outer cylinder of the moving clamp device, and a rotation for driving the cam of the moving clamp device by rotating the spline shaft Drive means; and reciprocating drive means for reciprocating the moving clamp device along the linear guide and the spline shaft to send the continuous material. That.

  According to one aspect of the continuous material feeding device according to the present invention, the continuous material feeding device can intermittently feed the continuous material using the ball spline and the cam mechanism, and is a fixed body fixed to the base body. A spline outer cylinder that is rotatably held around the shaft center by the fixed body, a cam that is fixed to the spline outer cylinder, and a clamp mechanism that can hold the continuous material by driving the cam. A clamping device, a moving main body provided to be movable along a linear guide fixed to the base, a spline outer cylinder held rotatably about the shaft center on the moving main body, and fixed to the spline outer cylinder A movable clamp device having a clamped cam, and a clamp mechanism capable of holding the continuous material by driving the cam, a spline outer cylinder of the fixed clamp device, and a spline of the movable clamp device A spline shaft inserted through the outer cylinder, rotation driving means for driving the cam of the fixed clamp device and the cam of the moving clamp device by rotating the spline shaft, and the moving clamp device as the linear guide and Reciprocating drive means for reciprocating along the spline shaft and feeding the continuous material.

  Further, according to one embodiment of the continuous material feeding device according to the present invention, a plurality of the moving clamp devices are arranged in the feeding direction of the continuous material, and one spline shaft is provided on a spline outer cylinder of the plurality of moving clamp devices. It can be characterized by being inserted.

Further, according to one embodiment of the continuous material feeding device according to the present invention, the continuous material is in the form of a band, and includes the moving clamp device and the spline shaft so as to hold both side portions of the continuous material. It is characterized in that a pair of is arranged.
Moreover, according to one form of the continuous material feeding apparatus concerning this invention, the space | interval by which the pair of the structure which consists of the said moving clamp apparatus and the said spline shaft is arrange | positioned is provided so that it can change according to the width | variety of the said continuous material. It can be characterized by being.

  Moreover, according to one form of the continuous material feeding apparatus concerning this invention, each said clamp mechanism act | operates from the one surface side of the said continuous material by the drive of the said cam by the rotational drive of one spline shaft. One holding part and the other holding part which operates from the other surface side of the continuous material can be provided.

Further, according to one embodiment of the continuous material feeding device according to the present invention, the one holding portion is a lever-like follower that rotates about an axis corresponding to a fulcrum of the insulator, and the continuous material is It is characterized in that the claw-shaped portion in contact with the lever corresponds to the point of action of the lever, and the cam follower portion in contact with the cam corresponds to the force point of the lever.
Further, according to one embodiment of the continuous material feeding device according to the present invention, when the claw-shaped portion does not hold the continuous material, the one of the continuous material feeding devices is configured to rotate outward in the width direction of the continuous material. A holding part may be provided.

Further, according to one aspect of the continuous material feeding device according to the present invention, the continuous material has pilot holes for positioning and feeding at predetermined intervals in the continuous direction on both side portions of the continuous material. It is provided in a tape shape, and may include a pilot pin that fits into the pilot hole and a follower that operates the pilot pin as components of the other holding portion.
Further, according to one embodiment of the continuous material feeding device according to the present invention, after the pilot pin is fitted into the pilot hole of the continuous material, it is continuously operated by a follower for operating the pilot pin, A pressure contact portion that comes into contact with the claw-shaped portion of the holding portion so as to sandwich the continuous material may be provided as a component of the other holding portion.
Moreover, according to one aspect of the continuous material feeding device according to the present invention, the press contact portion is in contact with the continuous material via an elastic force of an elastic member in order to sandwich the continuous material. Can do.

  According to the continuous material feeding device of the present invention, a clamp mechanism such as a moving clamp device can be operated via a cam mechanism by a ball spline which is a general-purpose component. For this reason, it is possible to simplify and reduce the weight of the clamping device, and to achieve a particularly advantageous effect that it is possible to operate at a high speed and to reduce the cost of manufacturing.

  BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a best mode example of a continuous material feeding apparatus according to the present invention will be described in detail with reference to the accompanying drawings (FIGS. 1 to 8). FIG. 1 is a front view (a), a plan view (b), and a right side view (c) of a fixed clamp device showing an embodiment of a continuous material feeding device according to the present invention. FIG. 2 is a left side view of the moving clamp device of the continuous material feeder of FIG.

This continuous material feeding device includes a ball spline and a cam mechanism as a basic configuration, and is a feeding device capable of intermittently feeding continuous material.
In addition, as a continuous material, for example, a stripable material such as a resin film or a metal hoop material for press processing, or a tape carrier that can be wound up, such as a tape carrier that adheres and transports a thin material to a tape surface ( (Including wire-like materials). That is, as the continuous material, all long works called a strip material, a tape material, a film material, a sheet material, a roll material, a coil material, or a foil material are included.

Reference numeral 20 denotes a fixed clamp device, a fixed main body 21 fixed to the base body 15, a spline outer cylinder 30 held by the fixed main body 21 so as to be rotatable about an axis, and fixed to the spline outer cylinder 30. The cam 32a includes a clamp mechanism 50 that can hold the continuous material 10 by driving the cam 32a.
As shown in FIG. 1C and the like, the continuous material 10 is provided in a strip shape.

Reference numeral 40 denotes a moving clamp device, a moving main body 41 provided so as to be movable along a linear guide 42 fixed to the base 15, and a spline outer cylinder held by the moving main body 41 so as to be rotatable about an axis. 30, a cam 32 b fixed to the spline outer cylinder 30, and a clamp mechanism 50 that can hold the continuous material 10 by driving the cam 32 b. The linear guide 42 of this embodiment is provided with a pair of guide members 42a, 42a fixed in a state of extending parallel to the left and right directions (on the drawing) on the base 15.
This moving clamp device 40 has the same configuration as that of the fixed clamp device 20 except that it is provided so as to be movable along the linear guide 42 and the shape of the cam contour. According to this, since parts can be shared, there are advantages that manufacturing costs can be reduced and maintenance management is easy.

  Each clamp mechanism 50 according to the present embodiment includes one holding portion 51 that receives one surface side of the continuous material 10 and the other surface of the continuous material 10 by driving the cams 32 a and 32 b by rotating the spline shaft 70. And the other holding portion 61 that operates from the side.

One holding part 51 is formed as a part of the fixed main body 21, and is provided with a receiving surface part 52 for receiving and sandwiching the belt-like continuous material 10.
The other holding portion 61 includes a pressure contact portion 62 that contacts the other surface side of the continuous material 10 in order to sandwich the continuous material 10 together with the receiving surface portion 52 of the one holding portion 51. The pressure contact portion 62 is guided by a linear guide portion 63 provided in the fixed main body 21 and is provided so as to be able to reciprocate in the clamping direction. The other holding portion 61 is a lever-like follower that rotates about a shaft 64 that corresponds to the fulcrum of the lever, and the fork portion 65 that cooperates with the pressure contact portion 62 corresponds to the point of action of the lever. The cam follower portion 66 in contact with the cam 32 includes a lever portion 67 provided so as to correspond to the power point of the lever. The shaft 64 is provided on the fixed body 21 or the movable body 41. The lever portion 67 is always biased by the coil spring 68 in the direction in which the press contact portion 62 opens.
The form of the cam mechanism is not limited to this, and for example, a groove cam may be used.
Moreover, it is not limited to the cam mechanism which clamps by the operation | movement of a cam like this embodiment, and cancels a clamp with the urging | biasing force of a spring (elastic means, such as a coil spring). It is good also as a cam mechanism which clamps with a spring and cancels | releases a clamp with a cam.
Further, when the lever mechanism is provided in the clamp mechanism using the cam mechanism, the positional relationship between the fulcrum, the action point, and the force point is not limited to this embodiment. For example, it may be in the form of a lever where the power point is located between the fulcrum and the action point.

  Reference numeral 70 denotes a spline shaft, which is inserted through the spline outer cylinder 30 of the fixed clamp device 20 and the spline outer cylinder 30 of the moving clamp device 40. According to this, by driving one spline shaft 70, the fixed clamp device 20 and the movable clamp device 40 can be operated in synchronization, and the device can be simplified.

  Reference numeral 80 denotes a rotation driving means that drives the cam 32 a of the fixed clamp device 20 and the cam 32 b of the moving clamp device 40 by rotating the spline shaft 70. As the rotation driving means 80, an electric motor or a rotary actuator that can be appropriately controlled can be used.

  Reference numeral 90 denotes reciprocating drive means for reciprocating the moving clamp device 40 along the linear guide 42 and the spline shaft 70 to feed the continuous material 10. As this reciprocating drive means 90, for example, an electric drive device using a ball screw or a cylinder device can be used.

  The operation of the continuous material feeding device having the above configuration (the operation of the crank mechanism 50 of the fixed clamp device 20 and the moving clamp device 40) will be described in detail with reference to FIGS. In each figure, (a) is a left side view of the fixed clamp device 20, and (b) is a left side view of the moving clamp device 40 in a state where the fixed clamp device 20 is in (a).

In the process of FIG. 3, as shown in FIG. 3A, the continuous material 10 is held by the clamp mechanism 50 of the fixed clamp device 20. That is, the continuous material 10 is sandwiched between the press contact portion 62 and the receiving surface portion 52. The cam 32a rotates in the direction of the arrow.
At this time, as shown in FIG. 3B, in the clamp mechanism 50 of the moving clamp device 40, the holding of the continuous material 10 is released. That is, the pressure contact portion 62 is open with respect to the receiving surface portion 52. While the clamp mechanism 50 is thus opened, the moving clamp device 40 is moved by the reciprocating drive means 90 and returned to the position where the continuous material 10 is clamped. The cam 32b rotates in the direction of the arrow.

In the next step of FIG. 4, the cam 32 a rotates as shown in FIG. 4A, but the continuous material 10 is held by the clamp mechanism 50 of the fixed clamp device 20 following the previous step. Yes.
At this time, as shown in FIG. 4B, the moving clamp device 40 operates so that the clamp mechanism 50 is closed. At this time, the pressure contact portion 62 is not in pressure contact with the continuous material 10. Therefore, it is not in the clamping state.

In the next step of FIG. 5, the cam 32 a further rotates as shown in FIG. 5A, but the continuous material 10 is held by the clamp mechanism 50 of the fixed clamp device 20 following the previous step. ing.
At this time, as shown in FIG. 5B, the continuous material 10 is held in the clamp mechanism 50 of the moving clamp device 40. That is, the continuous material 10 is sandwiched between the press contact portion 62 and the receiving surface portion 52.

Next, in the process of FIG. 6, the holding of the continuous material 10 is released in the clamp mechanism 50 of the fixed clamp device 20 by rotating the cam 32 a as shown in FIG. That is, the pressure contact portion 62 is open with respect to the receiving surface portion 52.
At this time, as shown in FIG. 6B, the continuous material 10 is held by the clamp mechanism 50 of the moving clamp device 40. That is, the continuous material 10 is sandwiched between the press contact portion 62 and the receiving surface portion 52. And while the continuous material 10 is held by the clamp mechanism 50 in this way, the moving clamp device 40 is moved by the reciprocating drive means 90, and the continuous material 10 is fed a predetermined distance.

In the next step of FIG. 7, as shown in FIG. 7A, the clamp mechanism 50 of the fixed clamp device 20 is operated to close. At this time, the pressure contact portion 62 is not in pressure contact with the continuous material 10. Therefore, it is not in the clamping state.
At this time, the cam 32b rotates as shown in FIG. 7B, but the continuous material 10 is held by the clamp mechanism 50 of the moving clamp device 40 following the previous step.

In the next step of FIG. 8, the continuous material 10 is held by the clamp mechanism 50 of the fixed clamp device 20 as shown in FIG. That is, the continuous material 10 is sandwiched between the press contact portion 62 and the receiving surface portion 52.
At this time, the cam 32b is further rotated as shown in FIG. 8B, but the continuous material 10 is held by the clamp mechanism 50 of the moving clamp device 40 following the previous step.

Then, in a state where the continuous material 10 in the process of FIG. 8 is held by both the fixed clamp device 20 and the moving clamp device 40, the work related to the continuous material 10 is performed. For example, when the continuous material 10 is a carrier tape that conveys a part, the work is performed on the part by a working device (not shown).
Since the positioning accuracy is higher when the work is performed near the clamp devices 20 and 40, the work can be performed with high accuracy. This work is not limited to product processing, and includes various work such as inspection work.

The operations of the clamp mechanisms 50 and 50 of the fixed clamp device 20 and the movable clamp device 40 according to the above steps are sequentially and continuously performed by the rotation of one spline shaft 70. By sequentially repeating this operation, a continuous material as a workpiece can be sent sequentially and intermittently.
In this feeding operation, when the continuous material 10 is held and fed by the moving clamp device 40, the holding of the continuous material 10 by the fixed clamp device 20 is released (unclamped). When the moving clamp device 40 performs a return motion without holding the continuous material 10 (unclamped state), the continuous material 10 is held by the fixed clamp device.

Next, another embodiment of the continuous material feeding apparatus according to the present invention will be described in detail with reference to the accompanying drawings (FIGS. 9 to 15). FIG. 9 is a front view showing an embodiment of a continuous material feeding apparatus according to the present invention. FIG. 10 is a plan view of the continuous material feeder of FIG.
In this feeding device, a plurality of moving clamp devices 40 are arranged in the feeding direction of the continuous material 10, and one spline shaft 70 is inserted into the spline outer cylinder 30 of the plurality of moving clamping devices 40a and 40b. In this embodiment, two moving clamp devices 40a and 40b are arranged, and the continuous material 10 is a mechanism that is clamped and held by a roller (not shown).
The strip-shaped continuous material 10 fed by this feeding device is provided in a tape shape in which pilot holes 11 for positioning and feeding are provided at both sides of the continuous material 10 at a predetermined interval in the continuous direction. ing.
In addition, about the structure equivalent to the structure of the example demonstrated above, the same code | symbol is attached | subjected and description is abbreviate | omitted.

In order to hold both side portions of the tape-like continuous material 10, a pair of configurations including a first moving clamp device 40 a, a second moving clamp device 40 b and a spline shaft 70 is arranged. According to this, it can send suitably in the state where the tape-like continuous material 10 was stretched.
Although this embodiment shows a case where it is arranged horizontally, the directionality of the device is not limited, and even when it is placed upside down or arranged in an arbitrary angle direction According to the present invention, the continuous material can be suitably fed in a state of being stretched in the width direction.

In addition, an interval at which a pair of components including the first moving clamp device 40a, the second moving clamp device 40b, and the spline shaft 70 is arranged is provided so as to be changeable according to the width of the continuous material.
In the present embodiment, one of a pair of configurations including the first moving clamp device 40a, the second moving clamp device 40b, and the spline shaft 70 cannot be displaced in the direction perpendicular to the feed direction to the base body 15. Is provided. Specifically, two moving clamp devices 40a and 40b are provided on a linear guide 42 fixed to the base 15 via a fixed substrate 15a so as to be reciprocally movable, and both the moving clamp devices 40a and 40b are out of the spline. A spline shaft 70 is inserted through the cylinder 30.

Reference numeral 16a denotes a linear guide for adjusting the distance, which is fixed to the base 15.
The linear guide 16a for adjusting the distance is extended in a direction orthogonal to the feeding direction in which the linear guide 42 is extended. Then, along the linear guide 16a for adjusting the distance, the other one of the pair of configurations including the first moving clamp device 40a, the second moving clamp device 40b, and the spline shaft 70 is integrally moved (displaced). ) Is possible.
Specifically, the linear moving body 17a is fixed so as to be movable while being guided by the linear guide 16a for adjusting the interval. A movable substrate 17 is fixed on the linear moving body 17a. Two moving clamp devices 40a and 40b are provided on the linear guide 42 fixed on the movable substrate 17 so as to be able to reciprocate in the feed direction, and both of the moving clamp devices 40a and 40b are splined. The shaft 70 is inserted. As a result, the two moving clamp devices 40a and 40b are provided on the base body 15 via the linear guide 42, the movable substrate 17 and the linear moving body 17a, and the linear guide 16a for adjusting the interval. .
In this embodiment, in order to displace the movable substrate 17 along the linear guide 16a, a movable body 17b fixed to the movable substrate 17, a ball screw 16b and a handle 16c screwed to the movable body 17b, A manual displacement mechanism is provided. The manual displacement mechanism is provided with a pair, and is configured to be operated in synchronization by the timing pulley 16d and the timing belt 16e.
Reference numeral 16f denotes a fixture, which is provided to lock the state positioned by the interval adjusting mechanism described above.

Reference numeral 44 denotes a linkage mechanism, and the pair of first moving clamp devices 40a, 40a and the pair of second moving clamp devices 40b, 40b are integrally movable along the pair of linear guides 42, 42. It is a part to be linked together.
Specifically, the cooperation part 46 fixed to the other two moving clamp devices 40a and 40b is slidably engaged with the linked part 45 fixed to the two two movement clamp devices 40a and 40b. Yes. More specifically, a cooperation unit 46 including a pair of rollers 47 and 47 that abut from both sides is linked to a linearly-linked part 45 that extends in the width direction.
Thereby, according to the width | variety of the continuous material 10, the space | interval of a pair of 1st moving clamp apparatus 40a, 40a and a pair of 2nd moving clamp apparatus 40b, 40b can be slid and changed suitably.
In addition, 45a is a part of the cooperation part 45, Comprising: It is a connection part which connects one two movement clamp apparatus 40a, 40b. Moreover, 46a is a part of to-be-cooperated part 46, Comprising: It is a connection part which connects the other two moving clamp apparatuses 40a and 40b.

The main part of the reciprocating drive means 90 is provided outside the space between a pair of components composed of the first moving clamp device 40 a, the second moving clamp device 40 b and the spline shaft 70. According to this, the space on both sides (upper and lower spaces in this embodiment) where the continuous material 10 is sent is vacant, and the processing device and the inspection device can be appropriately arranged. That is, the structure concerning the continuous material feeder is not in the space on both sides of the continuous material 10 to be fed, and other devices can be freely arranged. For this reason, it can be used for various operations, and versatility can be improved.
In addition, the same effect can be acquired also when either one of the 1st moving clamp apparatus 40a and the 2nd moving clamp apparatus 40b is replaced by the fixed clamp apparatus 20 (refer FIG. 1). The same applies to the case where more clamping devices are provided.

The reciprocating drive means 90 of the present embodiment is composed of a ball screw shaft 91, a ball screw moving part 92, and an electric motor 93. The ball screw moving part 92 and the linked part 45 are fixed, so that two pairs The moving clamp devices 40a, 40a, 40b, 40b can be driven along the pair of linear guides 42, 42. In this embodiment, the power of the electric motor 93 is transmitted to the ball screw shaft 91 by the timing pulleys 94 and 96 and the timing belt 95.
Of course, the reciprocating drive means is not limited to this, and other drive means such as a cylinder device can be used.

The rotational drive means 80 for rotating the spline shaft 70 can appropriately employ an electric motor such as a servo motor as a drive device.
In order to rotate the pair of spline shafts 70, 70 in synchronization, a power transmission mechanism using bevel gears 71a, 71b and a rotating shaft 80a as shown in FIG. 10 can be employed. Further, as the power transmission mechanism, a mechanism using a timing pulley and a timing belt can be employed. According to this, it is only necessary to provide one electric motor, the configuration of the apparatus can be simplified, and the manufacturing cost can be reduced.
Further, an electric motor may be provided for each of the spline shafts 70, and the pair of electric motors may be driven synchronously.
The drive device is not limited to an electric motor, and for example, a rotary actuator may be used.

As shown in FIG. 11, each clamp mechanism 50, 50 is continuously connected to one holding portion 51 that operates from one surface side of the continuous material 10 by driving the cam 32 by rotational driving of one spline shaft 70. The other holding | maintenance part 61 which act | operates from the other surface side of the material 10 is provided.
In other words, the single spline shaft 70 and the cam 32 can be clamped by operations from both sides. For this reason, the structure of an apparatus can be simplified and manufacturing cost can be reduced.

The one holding portion 51 is a lever-like follower that rotates about a shaft 54 corresponding to a fulcrum of the lever, and a claw-like portion 55 that contacts the continuous material 10 corresponds to a point of action of the lever, and the cam A cam follower portion 56 that is in contact with the first cam groove 33 is provided so as to correspond to the power point of the lever.
In addition, the axis | shaft 54 is provided in the state fixed to the main bodies 21 and 41 of each clamp apparatus. Reference numeral 58 denotes a coil spring, which is an urging means for always urging one holding portion 51 in a closing direction.

And when the nail | claw-shaped part 55 does not hold | maintain the continuous material 10, the one holding | maintenance part 51 is arrange | positioned so that it may rotate to the outer side of the width direction of the continuous material 10. FIG. Thus, since the nail | claw-shaped part 55 can rotate, the continuous material 10 which is a workpiece | work can be set easily.
Moreover, since the form of the one holding | maintenance part 51 is a lever shape, the space by the side of the surface by which the nail | claw-shaped part 55 act | operates can be opened widely. Therefore, in the case of the moving clamp apparatus 40, it can move suitably, without interfering with another structure. Furthermore, it is possible to suitably obtain a space where other working devices can be arranged.

The other holding portion 61 includes a pilot pin 73 that fits in the pilot hole 11 and a follower 74 that operates the pilot pin 73. The follower 74 has a lever shape that rotates about a shaft 64 corresponding to the fulcrum of the lever, and the fork portion 65 that operates the pilot pin 73 corresponds to the point of action of the lever. A cam follower portion 66 in contact with the cam groove 34 is provided so as to correspond to the lever power point.
The shaft 64 is provided in a state of being fixed to the main bodies 21 and 41 of the respective clamping devices. Reference numeral 75 denotes a first straight guide portion, which is fixed to the main bodies 21 and 41. A pressing portion 75a that pushes the pilot pin 73 in cooperation with the fork portion 65 of the follower 74 is provided in the first linear guide portion 75 so as to be movable in the clamping direction (vertical direction in this embodiment).

Then, after the pilot pin 73 is fitted in the pilot hole 11 of the continuous material, it is continuously operated by the follower 74 that operates the pilot pin 73, and the continuous material 10 is moved together with the claw-like portion 55 of one holding portion 51. A press-contact portion 62 that comes into contact with the other holding portion 61 is provided as a component of the other holding portion 61.
For this reason, after positioning is suitably performed by the pilot pin 73, it is reliably held. Thereby, the continuous material 10 can be hold | maintained accurately and reliably.

The pressure contact portion 62 is provided so as to contact the continuous material 10 through the elastic force of the flat spring 76 in order to sandwich the continuous material 10. The sandwiching pressure can be appropriately applied by using the elastic material called the Sarah spring 76, and the continuous material 10 can be appropriately held. Further, the Sarabane 76 can obtain suitable elasticity in a small space, and has an advantage of high durability. However, it goes without saying that other elastic members such as a coil spring may be used instead of the flat spring 76.
Reference numeral 77 denotes a second linear guide portion, which is fixed to the main bodies 21 and 41. A press contact portion 62 is provided on the second linear guide portion 77 so as to be movable in the clamping direction (vertical direction in this embodiment). The pressure contact portion 62 includes a guide hole 78 that guides the pilot pin 73. Reference numeral 79 denotes a coil spring, which is an urging means for always urging the press contact portion 62 in the opening direction.

The operation of each clamping mechanism 50 of the first clamping device 40a and the second moving clamping device 40b configured as described above will be described in detail with reference to FIGS. Each figure is a side view of each clamp mechanism 50.
In this embodiment, the first clamping device 40a and the second moving clamping device 40b perform the same operation in synchronization and send the continuous material 10. The fed continuous material 10 is held by fixed holding means such as a roller (not shown). The continuous material 10 is fed by alternately holding between the fixed holding means and the two reciprocating moving clamp devices 40a and 40b.

  In the process of FIG. 11, the holding of the continuous material 10 by the clamp mechanism 50 is released. That is, the claw-like portion 55 is open with respect to the pressure contact portion 62. When this is the clamp mechanism 50 of the movable clamp devices 40a and 40b, the movable clamp devices 40a and 40b are moved by the reciprocating drive means 90 in a state where the clamp mechanism 50 is opened as described above. Thereby, the movement clamp apparatuses 40a and 40b are returned to the position where the continuous material 10 is clamped.

  In the process of FIG. 12, the claw-like portion 55 of the clamp mechanism 50 operates so as to close. At this time, the pressure contact portion 62 is not pressed against the continuous material 10. Accordingly, the continuous material 10 is not in a state of being sandwiched.

In the process of FIG. 13, as shown in FIG. 13A, the pilot pin 73 of the clamp mechanism 50 protrudes and fits into the pilot hole 11 of the continuous material 10.
At this time, as shown in FIG. 13B, the claw-like portion 55 can be manually rotated. That is, according to the shape of the first cam groove 33, the claw-like portion 55 can be opened with respect to the press contact portion 62 against the urging force of the coil spring 58. In this state, the continuous material 10 that is a tape-shaped workpiece can be easily supplied to the clamp mechanism 50. It is easy to set the work and work efficiency can be improved.

In the process of FIG. 14, the follower operation including the claw-like portion 55 is locked at a position where the continuous material 10 is sandwiched by the first cam groove 33.
In the process of FIG. 15, the continuous material 10 is held by the clamp mechanism 50. When the pressure contact portion 62 is pressed against the locked claw-shaped portion 55, the continuous material 10 is sandwiched between the claw-shaped portion 55 and the pressure contact portion 62. At this time, the pressure contact portion 62 is pressed against the continuous material 10 via the elastic force of the flat spring 76.

FIG. 16A is a front view showing details of an example of a clamp mechanism in which a plurality of pilot pins 73 are provided. FIG. 16B is a side view showing the arrangement relationship and the operating state of the claw-like portion 55 and the pilot pin 73.
Thus, positioning accuracy can be improved by appropriately making the number of pilot pins 73 plural. Moreover, the load of the load concerning one pilot hole 11 can be disperse | distributed, and the continuous material 10 can be safely sent so that the pilot hole 11 may not be broken.

In the continuous material feeding apparatus in which the clamping mechanism 50 as described in the embodiment of FIG. 1 is not provided with the claw-like portion 55 as described above, The holding members 51 may be connected to each other, and the pair of other holding members 61 may be connected to each other. According to this, the movement concerning a pair of clamp apparatus and the opening / closing operation | movement of a clamp can be synchronized reliably.
As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. That is.

It is the front view (a) which shows one form of the feeder of the continuous material concerning this invention, a top view (b), and the right view (c) of a fixed clamp apparatus. It is a left view of the movement clamp apparatus of the feeder of FIG. It is a left view of each clamp apparatus explaining operation | movement of the feeder of FIG. It is a left view of each clamp apparatus explaining operation | movement of the feeder of FIG. It is a left view of each clamp apparatus explaining operation | movement of the feeder of FIG. It is a left view of each clamp apparatus explaining operation | movement of the feeder of FIG. It is a left view of each clamp apparatus explaining operation | movement of the feeder of FIG. It is a left view of each clamp apparatus explaining operation | movement of the feeder of FIG. It is a front view which shows the other form of the feeder of the continuous material which concerns on this invention. FIG. 10 is a plan view of the continuous material feeder of FIG. 9. It is a side view explaining operation | movement of the clamp mechanism which concerns on the feeder of FIG. It is a side view explaining operation | movement of the clamp mechanism which concerns on the feeder of FIG. It is a side view explaining operation | movement of the clamp mechanism which concerns on the feeder of FIG. It is a side view explaining operation | movement of the clamp mechanism which concerns on the feeder of FIG. It is a side view explaining operation | movement of the clamp mechanism which concerns on the feeder of FIG. It is the front view (a) and partial side view (b) which show the example of a clamp mechanism which concerns on the feeder of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Continuous material 11 Pilot hole 15 Base | substrate 20 Fixed clamp apparatus 21 Fixed main body 30 Spline outer cylinder 32 Cam 32a Cam 32b Cam 40 Moving clamp apparatus 40a Moving clamp apparatus 40b Moving clamp apparatus 41 Moving main body 42 Linear guide 50 Clamp mechanism 51 One holding | maintenance Part 54 shaft 55 claw-like part 56 cam follower part 61 other holding part 62 pressure contact part 70 spline shaft 73 pilot pin 74 follower 76 flat spring 80 rotational drive means 90 reciprocating drive means

Claims (11)

A continuous material feeding device capable of intermittently feeding a continuous material using a ball spline and a cam mechanism,
A movable body provided to be movable along a linear guide fixed to the base; a spline outer cylinder rotatably held around the axis of the movable body; a cam fixed to the spline outer cylinder; A moving clamp device having a clamp mechanism capable of holding the continuous material by driving the cam;
A spline shaft inserted through a spline outer cylinder of the moving clamp device;
Rotation drive means for driving the cam of the moving clamp device by rotating the spline shaft;
A continuous material feeding device comprising: a reciprocating drive means for reciprocating the moving clamp device along the linear guide and the spline shaft to feed the continuous material. A continuous material feeding device capable of intermittently feeding a continuous material using a ball spline and a cam mechanism,
A fixed main body fixed to the base body, a spline outer cylinder held rotatably around the shaft center by the fixed main body, a cam fixed to the spline outer cylinder, and the continuous material is held by driving the cam A fixed clamping device having a clamping mechanism capable of
A movable body provided to be movable along a linear guide fixed to the base; a spline outer cylinder rotatably held around the axis of the movable body; a cam fixed to the spline outer cylinder; A moving clamp device having a clamp mechanism capable of holding the continuous material by driving the cam;
A spline shaft inserted through a spline outer cylinder of the fixed clamp device and a spline outer cylinder of the moving clamp device;
Rotation drive means for driving the cam of the fixed clamp device and the cam of the movable clamp device by rotating the spline shaft;
A continuous material feeding device comprising: a reciprocating drive means for reciprocating the moving clamp device along the linear guide and the spline shaft to feed the continuous material.   3. The continuous material according to claim 1, wherein a plurality of the moving clamp devices are arranged in a feeding direction of the continuous material, and one spline shaft is inserted through a spline outer cylinder of the plurality of moving clamp devices. Feeding device. The continuous material is strip-shaped,
The continuous material feeding device according to claim 1, 2 or 3, wherein a pair of the moving clamp device and the spline shaft are arranged to hold both side portions of the continuous material.   5. The continuous material feeding device according to claim 4, wherein an interval at which the pair of components including the moving clamp device and the spline shaft is disposed is provided so as to be changeable in accordance with the width of the continuous material. .   The clamp mechanism includes one holding portion that operates from one surface side of the continuous material and the other that operates from the other surface side of the continuous material by driving the cam by rotationally driving one spline shaft. The continuous material feeding device according to claim 1, further comprising a holding unit.   The one holding portion is a lever-like follower that rotates about an axis corresponding to a fulcrum of the lever, and a claw-shaped portion that contacts the continuous material corresponds to a point of action of the lever and contacts the cam. 7. The continuous material feeding device according to claim 6, wherein the cam follower portion is provided so as to correspond to a force point of the insulator.   The said one holding | maintenance part is arrange | positioned so that it may rotate to the outer side of the width direction of this continuous material when the said nail | claw-shaped part does not hold | maintain the said continuous material. Continuous material feeder. The continuous material is in the form of a tape in which pilot holes for positioning and feeding are provided at a required interval in the continuous direction on both side portions of the continuous material,
The continuous material feeding device according to claim 6, 7 or 8, comprising a pilot pin fitted into the pilot hole and a follower for operating the pilot pin as components of the other holding portion.   After the pilot pin is fitted into the pilot hole of the continuous material, it is continuously operated by a follower that operates the pilot pin, and is pressed so as to contact the continuous material together with the claw-shaped portion of the one holding portion. The continuous material feeding device according to claim 9, wherein a portion is provided as a component of the other holding portion.   11. The continuous material feeding apparatus according to claim 10, wherein the press contact portion is in contact with the continuous material via an elastic force of an elastic member so as to sandwich the continuous material.

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