JP2008221259A - Apparatus for manufacturing bottle can - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fix a workpiece supporting disk so as not to turn when a power source has been failed by a blackout, etc. <P>SOLUTION: An apparatus for manufacturing bottle cans comprises a workpiece supporting stand 10 which supports the workpiece and is turned by electric power, and a tool supporting stand for supporting a working tool, and carries out the working for the workpiece by making the working tool approach to and separate from the workpiece supporting stand 10. Engagement holes 13b are formed on the outer circumferential portion 13a of a workpiece supporting disk 13 at a specified interval in the circumferential direction. A projecting pin 54 is provided so as to project toward the outer circumferential portion 13a and also so as to engage with the engaging holes 13b when it projects. When electric power for turning the workpiece supporting disk 13 has been intercepted, the projecting pin 54 projects and engages with the engaging hole 13b, and the rotation of the workpiece supporting disk 13 is stopped. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bottle can manufacturing apparatus for manufacturing, for example, a metal bottle can for beverages.

Conventionally, as a bottle can manufacturing apparatus for manufacturing a metal bottle can (hereinafter simply referred to as a bottle can), for example, those described in Patent Documents 1 and 2 are known. This is because the work support disk that supports the bottomed cylindrical work and the tool support disk that supports multiple work tools for work processing are placed opposite to each other, and these can be moved close to and away from each other by a drive unit using a crank mechanism. In addition, each support disk is moved close to and away from the workpiece, and a workpiece placed between them is processed. The plurality of machining tools are arranged in the order of machining on the workpiece, and the workpiece can be moved to a machining position by the next machining tool for each stroke in which each support disk approaches and separates. Then, the workpiece is sequentially processed by repeating the stroke of each table and the movement of the workpiece, and a bottle can having a predetermined shape is formed and manufactured when a series of processing is completed. . As a method for driving the workpiece support disk, an electric motor is generally used.
JP 2003-290855 A JP 2003-251424 A

  However, the work support disk that is rotated by a conventional electric motor is used when the work support disk is powered off due to a power failure, or when the electricity for rotating the work support disk is stopped when maintenance of the work support disk is performed. The work support disk may rotate without stopping at a predetermined position due to its own weight or inertia force, and there is a drawback that the work is displaced from the predetermined stop position. Therefore, when the work support disk is restarted, it is necessary to return the rotation position of the work support disk to a predetermined position, which is troublesome.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a bottle can manufacturing apparatus that fixes a work support disk so that it does not rotate when electricity is stopped due to a power failure or the like. To do.

In order to achieve the above object, a bottle can manufacturing apparatus according to the present invention includes a workpiece support disk that supports a plurality of bottomed cylindrical workpieces in the circumferential direction and rotates electrically, and a plurality of machining tools for workpiece machining. A workpiece support disk and a tool support base arranged opposite to each other in the axial direction of the workpiece, and the work tool is moved closer to and away from the workpiece support disc in the axial direction of the workpiece to the workpiece disposed between them. An apparatus for manufacturing a bottle can for performing the above-described processing, wherein a recess is formed in the outer peripheral portion of the work support disk, and a protruding member capable of protruding toward the outer peripheral portion is provided, and an electric for rotating the work support disk When the cutting is interrupted, the protruding member is protruded and engaged with the recess to stop the rotation of the work support disk.
In the present invention, for example, when the power for rotating the work support disk is cut off due to a power failure or the like and the electricity for rotating the work support disk is cut off, the protruding member protrudes toward the outer periphery of the work support disk, The projecting member engages with a recess formed in the work support disk. When the protruding member and the recessed portion are displaced from each other, the tip end portion of the protruding member is in contact with the outer peripheral portion. However, due to the rotation by the inertia force of the work support disk or the rotation by manual operation. , And can be engaged with a recess located in the vicinity of the protruding member. Thus, by engaging the protruding member with the recess, the rotation of the work support disk can be restricted and fixed.

Moreover, in the bottle can manufacturing apparatus according to the present invention, the recesses are preferably arranged at the same interval as the pitch angle of the workpiece.
In the present invention, when a workpiece is processed into a workpiece, when the workpiece support disk rotates intermittently by repeatedly rotating and stationary at a pitch angle for one workpiece, the protruding member is engaged with the recess when stationary. Therefore, when the projecting member is engaged with the recess, the workpiece support disk can be stopped at a position where the workpiece and the processing tool do not shift, and high-precision machining can be performed on the workpiece. it can.

In the bottle can manufacturing apparatus according to the present invention, the projecting member includes a projecting drive mechanism that interlocks with an energized state of electricity for rotating the work support disk, and the projecting drive mechanism projects in the direction in which the projecting member projects. It is preferable that an urging member to be urged is provided and the protruding member is moved in a direction opposite to the protruding direction against the urging force of the urging member when energized.
In the present invention, when electricity for rotating the work support disk is flowing, the protrusion drive mechanism is energized and operated, and a force (resistance force) against the urging force of the urging member is applied to operate the protruding member. It can be moved in the direction opposite to the protruding direction, and the moved position can be held. On the other hand, when the electricity of the work support disk is stopped, the protrusion drive mechanism is de-energized and the operation is stopped, so that the resistance force disappears, the urging member is urged, and the protrusion member becomes the work support disk. Therefore, the projecting member can be engaged with the recess.

  According to the bottle can manufacturing apparatus of the present invention, when electricity for rotating the work support disk is interrupted due to a power failure or the like, the protruding member is protruded toward the outer periphery of the work support disk so that the recess of the work support disk is The workpiece support disk can be fixed so as not to rotate by its own weight or inertial force. In addition, by disposing the concave portion at a predetermined position, the work support disk does not stop at a shifted position, and when the work support disk is rotated again, positioning work such as returning the rotation position to the predetermined position is unnecessary. The effect of becoming.

Hereinafter, an embodiment of a bottle can manufacturing apparatus according to the present invention will be described with reference to FIGS.
1 is a side view showing a schematic configuration of a bottle can manufacturing apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view showing a schematic configuration of a work support base, and FIG. 3 is an enlarged perspective view of a rotation fixing mechanism shown in FIG. 4 is an elevational sectional view showing a state in which the rotation of the work support disk is stopped by the rotation fixing mechanism, FIG. 5 is a view taken along the line AA of the work support disk shown in FIG. 4, and FIG. 6 is the rotation shown in FIG. 7 is a side view of the fixing mechanism, FIG. 7 is a BB line arrow view of the tool support shown in FIG. 1, and FIG. 8 is an exploded perspective view showing the structure of the processing tool unit and the linear drive mechanism.

  As shown in FIG. 1, the bottle can manufacturing apparatus 1 according to the present embodiment rotates a workpiece W in the circumferential direction around a support frame 11 and a rotation axis that is substantially horizontal on one side of the support frame 11. The workpiece support 10 and a tool support 20 that is disposed opposite to the workpiece support 10 with a predetermined interval and that moves toward and away from the workpiece W in the axial direction.

  As shown in FIG. 2, the workpiece support 10 includes a rotary shaft portion 12 that is rotatably provided on the frame 11, and a workpiece support disk 13 that is rotatably supported by the rotary shaft portion 12 about the axis. ing. The frame 11 is provided with a rotation fixing mechanism 50 for restricting and fixing the rotation of the work support disk 13. That is, the rotation fixing mechanism 50 is fixed at a predetermined position that does not rotate with the rotation of the work support disk 13.

  The workpiece support disk 13 is configured to move the workpiece holders 2, 2,... Capable of holding the bottom side of the bottomed cylindrical workpiece W in the circumferential direction for each machining operation. Yes. That is, a large number of work holders 2, 2,... Are arranged in a ring shape at a predetermined pitch on the outer peripheral portion of the work support disk 13 on the tool support base 20 side. The workpieces W held by the workpiece holders 2 are arranged so that the axis thereof is parallel to the rotation axis of the workpiece support disk 13. Then, the work support disk 13 is intermittently rotated by a predetermined angle counterclockwise in FIG. 2 (indicated by an arrow F in FIG. 2) by a rotary drive device (not shown) together with the work holder 2 and the work W held by the work holder 2. It can be rotated.

  Further, as shown in FIGS. 3 to 5, the work support disk 13 has a circumferential interval that is the same as the pitch angle of the work holder 2 (or the work W supported by the work support disk 13) on the outer peripheral portion 13a. The engagement holes 13b, 13b,... (Concave portions) are formed. Each engagement hole 13b is arranged at a substantially intermediate portion in the circumferential direction between the workpieces, and the axial direction of each engagement hole 13b coincides with the radial direction of the workpiece support disk 13.

  The rotation fixing mechanism 50 includes a column 51 having one end 51a fixed to the frame 11, a projecting drive mechanism 52 fixed to the other end 51b of the column 51, and rods 52A and 52B (described later) of the projecting drive mechanism 52. The projection pin 54 (protruding member) is fixed to the tip end via a fixing member 53 and engageable with the engaging hole 13b. The support column 51 is erected on the frame 11 with its longitudinal direction directed in the axial direction of the workpiece W.

  As shown in FIG. 6, the protrusion drive mechanism 52 includes rods 52 </ b> A and 52 </ b> B (biasing members) that are loaded with a spring member (not shown) and are biased in the direction in which the protrusion pin 54 protrudes (arrow E <b> 1 direction). The rods 52 </ b> A and 52 </ b> B are arranged with their axial directions directed in the radial direction of the work support disk 13.

Further, the protrusion drive mechanism 52 is configured to operate in conjunction with an energization state of electricity for rotating the work support disk 13. That is, when the electricity for rotating the work support disk 13 is flowing, the protrusion driving mechanism 52 is also energized and operates, and the protrusion pin 54 resists the urging force of the rods 52A and 52B. A force (resistance force) for moving the rods 52A and 52B is applied in a direction away from the direction (arrow E2 direction), that is, in a direction opposite to the protruding direction of the protruding member 54, and the protruding pin 54 is removed from the engagement hole 13b. It has a configuration to be held.
On the other hand, when the electricity for rotating the work support disk 13 is stopped, the projecting drive mechanism 52 is also in a non-energized state so that the resistance force does not act, and the rods 52A and 52B are energized and project. The pin 54 protrudes toward the outer peripheral portion 13a of the work support disk 13.

  The protruding pin 54 is fixed to the fixing member 53 with its axial direction directed to the axial direction of the rods 52A and 52B (that is, the radial direction of the work support disk 13), and the work support disk 13 is at a predetermined rotational position. Are arranged so as to be coaxial with the engagement hole 13b. The tip 54 a of the protruding pin 54 has a tapered shape that gradually decreases in outer diameter toward the work support disk 13.

  Further, in the rotation fixing mechanism 50, when the workpiece W is processed, the workpiece support disk 13 is interlocked with the intermittent rotation operation in which the workpiece support disk 13 is repeatedly rotated and stopped at a pitch angle corresponding to one workpiece, and the engagement hole 13b when the workpiece W is stopped. The projecting pin 54 is configured to engage with.

Next, a schematic configuration of the tool support 20 will be described with reference to FIGS.
As shown in FIG. 7, the tool support 20 supports an outer support frame 21 that is framed in a gate shape when viewed from the front, and a plurality of processing tools 3, 3,. A machining tool unit 30 (30A, 30B, 30C) is provided that is divided into a plurality of pieces in the circumferential direction in which the machining tool 3 is arranged. These machining tool units 30A, 30B, and 30C are connected and supported by the outer support frame 21 via a linear drive mechanism 40 made of a linear motor, and are capable of reciprocating in the axial direction of the work W held by the work support disk 13. It has become. That is, the processing tool unit 30 is configured to be able to perform processing on the workpiece W while being moved close to and away from the workpiece W.

As shown in FIG. 8, the processing tool unit 30 is installed on a base 31 having a rectangular shape in plan view and one end on the work support disk 13 side to fix a plurality of processing tools 3, 3,. And a tool holding portion 32. The base 31 is arranged with the longitudinal direction directed in the axial direction of the workpiece W.
The tool holding portion 32 is penetrated in the axial direction of the workpiece W (longitudinal direction of the base 31), and has through holes 32a, 32a,... For inserting and holding the base end portion 3a (see FIG. 1) of the processing tool 3. Is formed. The processing tools 3 held by the processing tool units 30 are arranged in the rotating direction of the work support disk 13, that is, in the processing order of the work W.

  As shown in FIG. 8, the linear drive mechanism 40 includes a base plate 41 and a guide unit that is fixed to the one end surface 41 a of the base plate 41 and that is disposed along the axial direction of the workpiece W held by the workpiece support disk 13. 42, an electromagnetic coil 43 fixed to one end surface 41a of the base plate 41, and a pair of slide rails 44 fixed to the back surface 31b of the base 31 of the processing tool unit 30 and slidable along the guide portion 42. The magnet plate 45 is fixed to the base 31 so as to be opposed to the electromagnetic coil 43, and generates a thrust force on the guide portion 42 between the electromagnetic coil 43 and a magnet plate 45.

  The base plate 41 has a rectangular shape in plan view, and is arranged with its longitudinal direction directed in the axial direction of the work support disk 13, and a fixed surface 41 b (surface opposite to the one end surface 41 a) is fixed to the outer support frame 21. ing. The guide portion 42 is provided along the axial direction of the workpiece W on both sides of the one end surface 41a of the base plate 41 with the central axis interposed therebetween. The electromagnetic coil 43 has a flat plate shape, is arranged with a predetermined length dimension between the guide portions 42 and 42 arranged in the two axial directions, and is fixed to one end surface 41 a of the base plate 41.

A pair of slide rails 44, 44 fixed to the processing tool unit 30 extends over the longitudinal direction of the base 31 of the processing tool unit 30 and is engaged in the engaging groove 42 a of the guide portion 42. The magnet plate 45 is disposed with a predetermined length dimension between the pair of slide rails 44 and 44, and is fixed to the back surface 31 b of the base 31. That is, the electromagnetic coil 43 and the magnet plate 45 are arranged in a state of facing each other with a predetermined interval in a state in which the slide rail 44 is engaged with the guide portion 42.
As described above, when electricity is passed through the electromagnetic coil 43, the linear drive mechanism 40 generates a magnetic field between the electromagnetic coil 43 and the magnet plate 45, and the electromagnetic coil 43 and the magnet plate 45 slide due to the change in the magnetic field. Relatively moves linearly in the axial direction of the rail 44. At this time, since the electromagnetic coil 43 is fixed to the outer support frame 21 (see FIG. 7) via the base plate 41, the processing tool unit 30 reciprocates so as to approach and separate from the workpiece support disk 13. It has become.

Next, the operation of the rotation fixing mechanism 50 described above will be described with reference to the drawings.
As shown in FIGS. 3 to 6, for example, when the electricity for rotating the rotating work support disk 13 is interrupted during a power failure or maintenance work, the protruding drive mechanism 52 is also in a non-energized state, and the rod 52A , 52B is de-energized. Therefore, the rods 52A and 52B are urged, the projecting pin 54 projects toward the outer peripheral portion 13a of the work support disk 13, and the projecting pin 54 engages with the engagement hole 13b.
And when the position of the protrusion pin 54 and the engagement hole 13b which protruded has shifted | deviated, it will be in the state which the front-end | tip part 54a of the protrusion pin 54 contact | abutted to the outer peripheral part 13a, but the inertial force of the workpiece | work support disk 13 It is possible to engage with the engaging hole 13b located in the vicinity of the projecting pin 54 by the rotation by the rotation or the rotation by manual operation. Thus, by engaging the protruding pin 54 with the engagement hole 13b, the rotation of the work support disk 13 can be restricted and fixed.

  Further, when electricity for rotating the work support disk 13 flows, the protrusion driving mechanism 52 is also energized, and a resistance force against the urging force of the rods 52A and 52B is applied to cause the protrusion pin 54 to be opposite to the protrusion direction. It can be moved in the direction (arrow E2 direction shown in FIG. 6), and the moved position can be held. That is, the projecting pin 54 at this time is set to a position that has come out of the engagement hole 13b.

Next, the manufacturing method which shape | molds the workpiece | work W using this bottle can manufacturing apparatus 1 is demonstrated based on drawing.
As shown in FIG. 1, in the bottle can manufacturing apparatus 1, each processing tool unit 30 </ b> A, 30 </ b> B, 30 </ b> C is advanced in a direction approaching the work support disk 13, and each processing tool 3, 3. Each time the workpiece tool units 30A, 30B, 30C reciprocate once in the advance / retreat direction, the workpiece support disk 13 rotates by a predetermined angle and the workpiece W rotates one pitch sequentially. .

More specifically, each time the machining tool unit 30 performs a machining operation once, the workpiece support disk 13 is intermittently rotated by a pitch angle corresponding to one workpiece, the workpiece holder 2 (work W) is sequentially shifted, and the next The machine stops in preparation for the machining operation.
Here, as shown in FIGS. 3 to 5, the engagement holes 13 b are arranged at the same interval as the pitch angle of the work W supported by the work support disk 13. 13 is rotated intermittently by repeatedly rotating and stopping at a pitch angle corresponding to one workpiece, and the projecting pin 54 is disposed so as to engage with the engaging hole 13b at the time of stopping. When the projecting pin 54 is engaged, the workpiece support disk 13 can be positioned and stopped at a position where the workpiece W and the machining tool 3 do not shift (that is, a position where the workpiece W and the machining tool are coaxial), High precision machining can be performed on the workpiece W.

  Then, as shown in FIG. 1, after machining, the machining tool units 30 </ b> A, 30 </ b> B, and 30 </ b> C are moved backward by the linear drive mechanism 40, so that the interference with the workpiece W held on the workpiece support disk 13 is eliminated. The workpiece support disk 13 is again rotated by a pitch angle corresponding to one workpiece W and stopped again. By repeating the process of performing the machining operation again, the workpiece W arranged between them is sequentially processed and molded. When a series of processing is completed, a bottle can having a predetermined shape is completed, and the bottle can is discharged from the discharge portion and conveyed to the next process.

  As described above, in the bottle can manufacturing apparatus according to the present embodiment, when the electricity for rotating the work support disk 13 is interrupted due to a power failure or the like, the protruding pin 54 is directed toward the outer peripheral portion 13a of the work support disk 13. By projecting and engaging with the engagement hole 13b of the work support disk 13, the work support disk 13 can be fixed so as not to rotate due to its own weight or inertial force. In addition, by disposing the engagement hole 13b at a predetermined position, the work support disk 13 does not stop at a shifted position, and when the work support disk 13 is rotated again, the rotation position is returned to the predetermined position. There is an effect that positioning work becomes unnecessary.

As mentioned above, although embodiment of the manufacturing apparatus of the bottle can by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the present embodiment, the position of the engagement hole 13b is set as an interval corresponding to the pitch in the circumferential direction of the workpiece W supported by the workpiece support disk 13, but is not limited to this, and is arbitrarily set. can do.
The configuration of the workpiece holder 2, the processing tool 3, the tool support base 20, and the processing tool unit 30 supported by the workpiece support disk 13 is not limited to the present embodiment.

It is a side view which shows schematic structure of the bottle can manufacturing apparatus by embodiment of this invention. It is a perspective view which shows schematic structure of a workpiece | work support stand. It is an expansion perspective view of the rotation fixing mechanism shown in FIG. It is an elevation sectional view showing the state where rotation of a work support disk is stopped by a rotation fixing mechanism. It is the AA arrow directional view of the workpiece | work support disk shown in FIG. It is a side view of the rotation fixing mechanism shown in FIG. It is a BB arrow directional view of the tool support stand shown in FIG. It is a disassembled perspective view which shows the structure of a processing tool unit and a linear drive mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle can manufacturing apparatus 2 Work holder 3 Processing tool 10 Work support stand 13 Work support disk 13a Outer peripheral part 13b Engagement hole (recessed part)
20 Tool support 30 Processing tool unit 40 Linear drive mechanism 50 Rotation fixing mechanism 52 Projection drive mechanism 52A, 52B Rod (biasing member)
54 Protruding pin (protruding member)
W Work

Claims (3)

A workpiece support disk that supports a plurality of bottomed cylindrical workpieces in the circumferential direction and rotates electrically, and a tool that supports a plurality of machining tools for workpiece machining and that is opposed to the workpiece support disc in the axial direction of the workpiece. A bottle can manufacturing apparatus comprising: a support base, wherein the processing tool is moved close to and away from the work support disk in the axial direction of the work and the work placed between them is processed. ,
A recess is formed in the outer periphery of the work support disk,
Protruding members that can project toward the outer peripheral portion are provided,
When the electricity for rotating the workpiece support disk is interrupted, the bottle is configured to stop the rotation of the workpiece support disk by projecting the projecting member and engaging with the recess. Can manufacturing equipment.   2. The bottle can manufacturing apparatus according to claim 1, wherein the recesses are arranged at the same interval as the pitch angle of the workpiece. The projecting member includes a projecting drive mechanism that interlocks with an energized state of electricity for rotating the work support disk,
The projecting drive mechanism is provided with a biasing member that biases the projecting member in a projecting direction, and resists the biasing force of the biasing member when energized and moves the projecting member in a direction opposite to the projecting direction. It is set as the structure to which it moves, The manufacturing apparatus of the bottle can of Claim 1 or 2 characterized by the above-mentioned.

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