JP2003001334A - Press unit with rotation function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a press machine for reciprocating a plate on which a plurality of dies are mounted and sequentially moving a work between the dies to complete molding, the plate being mounted on the plate. By generating the rotational driving force of a mold unit having a rotation (rotation) function in the mold unit, the mechanical structure is simplified, the reliability of the machine is improved, and the mounting position of the mold is liberalized. , Making the processing process flexible. SOLUTION: A revolving-side mold having a rotation function includes a built-in motor for rotating and driving, and a rotating force is applied to a power transmission shaft coupled to the mold (load side).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine for gradually forming, for example, an aluminum can having a complicated shape by a large number of metal molds arranged in a loop on a reciprocating plate.
The present invention relates to a press unit having a rotation function suitable for use in a necking machine).

[0002]

2. Description of the Related Art FIG. 5 shows the structure of a conventional machine for a necking machine, (A) is a schematic structural view of the machine, and (B) is a rotating machine on which a press die is mounted. It is a front view of a plate. As shown in FIG. 5 (A), this press machine is equipped with a large number of molds 100 (for example, male molds), and a reciprocating plate 101 that reciprocates in the horizontal direction to perform a pressing operation, as well as a large number of molds 102 (for example, male molds). Female mold) is mounted, and a rotary plate 103 that moves the mold in the circumferential direction for each press operation, a reciprocating shaft drive mechanism 105 that reciprocates the reciprocating shaft column 104 using, for example, a crank mechanism, and a reciprocating plate 101 Rotating plate 103 every time it reciprocates
Is composed of a rotary shaft drive mechanism 106 using a speed reduction mechanism 106A such as a worm gear for rotating the motor by a predetermined angle.

FIG. 5B shows a rotary plate 103 on which 12 dies are mounted for simplification of description. For example, a rotary plate 103 including a material supply position and a work discharge position is shown.
Pressing is performed sequentially with two dies, and when the rotary plate 103 makes one revolution, a work of a desired shape is formed. Therefore, every time the reciprocating plate 101 performs the pressing operation once, the rotating plate 103 is rotated by 30 degrees (= 360 /
12) Rotating by one by one, the molds gradually shift and the deformation gradually progresses. Therefore, when a cup-shaped material obtained by molding pellets by another machine is supplied to a designated position (material supply position) and the rotary plate 103 makes one revolution along with the reciprocating motion of the reciprocating plate 101, the discharge position is, for example, 6
A work having a finish shape as shown in appears.

In the finished shape C shown in FIG. 6, a screw is formed on the opening of the can, and the contents are hermetically sealed by a lid having a screw which is screwed into the can. FIG. 7 is an excerpt of a part of FIG. 5, and shows the mechanism of a press unit used when processing the screw of the can. In FIG. 7, 1 is a work, 2 is a rotary mold, 3 is a motor, 4 is an output shaft, 5 is a rotational force transmission shaft, 6 is a belt, and 7 is a cover.

From the shape of the feed material shown in FIG. 6 to the stage of threading in the finish shape C, the rotary plate rotates, and the press unit is mounted as shown in FIG. A press unit having a rotary die 2 for screw machining is mounted on the front surface of the work 1. While the press unit reciprocates together with the reciprocating plate 101, the rotary die 2 rotates to process a screw. . A motor 3 for driving the rotary mold 2 is mounted on the reciprocating plate 101, and this driving force rotates the output shaft 4 via a gear (not shown). The rotating mold 2 has a rotating force transmitting shaft 5
A rotational force is transmitted by the output shaft 4 and a rotational force transmission shaft 5, and a belt 6 represented by a timing belt is hung between the output shaft 4 and the rotational force transmission shaft 5 to transmit the rotational force. The cover 7 covers the motor 3 and the output shaft 4.

[0006]

As described above, in the prior art, the motor 3 which is the rotational power source of the rotary mold 2 is fixedly installed on the reciprocating plate 101.
There are problems that the position where the screw can be processed is determined, the process cannot be changed, the press unit cannot be easily replaced, and a new rotary mold press unit cannot be added.

The present invention has been made to solve the above problems, and the position of the rotary die press unit can be easily changed, the rotary die press unit can be easily replaced, and the rotary die press unit can be easily replaced. It aims to provide a press unit that can be easily added.

[0008]

A press unit with a rotating function according to the present invention has been made to solve the above-mentioned problems, and includes at least a press unit housing, a rotating mold, a rotating force transmitting shaft, and a rotating unit. The rotary drive motor comprises a drive motor and a joint. The rotary drive motor is fixed to a press unit housing, and the rotary mold is rotated by the rotary drive motor.

The press unit with rotating function according to the present invention comprises at least a press unit housing, a rotating die, a rotating force transmitting shaft, and a built-in motor.
The built-in motor is formed between the press unit housing and the rotational force transmission shaft, and the built-in motor rotates the rotary mold.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Embodiment 1 of the present invention will be described below with reference to FIGS. 1 and 2. In addition,
The electrical wiring is not a particularly important point, so the explanation is omitted. FIG. 1 shows a schematic structure of a necking machine according to a first embodiment of the present invention by extracting a part of FIG. 5, and corresponds to the conventional structure shown in FIG. In FIG. 1, 1 is a work and 8 is a press unit according to the first embodiment of the present invention.

FIG. 2 shows the structure of a press unit 8 used when a screw is machined by a necking machine according to the first embodiment of the present invention. In FIG. 2, 2
Is a rotary die, 10a is a cylindrical press unit housing, 11a is a rotational force transmission shaft to which the rotary die 2 is fixed, 1
2 is a thrust bearing that receives a force in the thrust direction of the rotary mold 2, 13 is a radial bearing that supports the rotational force transmission shaft 11a, 14 is a motor, and 15 is the press unit housing 1
0a is a motor pedestal for fixing the motor 14, 16 is a motor shaft, 17 is a joint connecting the motor shaft 16 and the rotational force transmission shaft 11a, 18 is a motor stator coil, and 19 is a motor rotor.

Next, the operation will be described. The rotary die 2 has a built-in mechanism for forming a screw, and is provided so as to project from the front surface of the press unit housing 10a. The rotational force transmission shaft 11a is housed so as to pass through the inside of the press unit housing 10a, and the thrust bearing 12 supports the forward pressing force in the front direction, and the radial bearing 13 is supported.
Supports the weight of the shaft rotating part. The motor 14 is attached to a motor pedestal 15 attached to the press unit housing 10a, and the motor shaft 16 is connected to the rotational force transmission shaft 11a by a joint 17. When a rotating magnetic field is generated by exciting the motor stator coil 18 in this state, the motor rotor 19 rotates following the rotating magnetic field.
The motor shaft 16 to which the motor rotor 19 is fixed also rotates by this, and the joint 7, the rotational force transmission shaft 11a,
The rotating mold 2 rotates at a rotation speed according to the speed of the rotating magnetic field. Since the mechanical operation for forming the screw is mechanically controlled in the rotary mold, the motor 14 does not need to be started and stopped each time the press is pressed, and may be kept rotating.

The above-described press unit 8 is mounted on the reciprocating plate 101, but since it has the construction in which the drive motor 14 is built in, the reciprocating plate 101 as in the prior art.
There is no need to prepare the drive source above. Therefore, since it can be mounted at any die position like a normal die, the working process can be easily changed, and the press unit can be easily replaced. Furthermore, it is easy to add a new rotary mold unit as it is simply attached like other molds.

Embodiment 2. The second embodiment of the present invention will be described below with reference to FIGS. 3 and 4. The electrical wiring is not a particularly important point, so its explanation is omitted. FIG. 3 shows a schematic structure of a necking machine according to a second embodiment of the present invention by extracting a part of FIG. 5, and 9 is a press unit according to the second embodiment of the present invention.

FIG. 4 shows a schematic structure of a press unit used when a screw is machined by a necking machine according to the second embodiment of the present invention. In FIG.
2 is a rotary mold, 10b is a cylindrical press unit housing, 11b is a rotational force transmission shaft to which the rotary mold 2 is fixed, 1
Reference numeral 2 is a thrust bearing that receives a force in the thrust direction of the rotary mold 2, 13 is a radial bearing that supports the rotational force transmission shaft 11b, and 20 is a magnet or induction coil fixed to one end of the rotational force transmission shaft 11b. A rotor, 21 is a stator coil fixed in the press unit housing 10b so as to face the rotor 20, and includes a press unit housing 1
0b, the rotor 20, the torque transmission shaft 11b, and the radial bearing 13 constitute a motor (built-in motor).

Next, the operation will be described. The rotary mold 2 has a built-in mechanism for forming a screw and is provided so as to project from the front surface of the press unit housing 10b. The rotational force transmission shaft 11b is housed so as to penetrate through the inside of the press unit housing 10b, and the thrust bearing 12 supports the forward thrust force in the front direction, and the radial bearing 13 is supported.
Supports the weight of the shaft rotating part. A rotor such as a magnet or an induction coil is embedded in the anti-load side of the rotational force transmission shaft 11b, and is rotated by an exciting current applied to a stator coil 21 attached to a predetermined position of the corresponding press unit housing 10b. When the magnetic field is generated, the rotor 20 rotates following the rotating magnetic field. Therefore, the rotational force transmission shaft 11b to which the rotor 20 is fixed also rotates by this, and the rotary mold 2 rotates at a rotational speed according to the speed of the rotating magnetic field.
Since the mechanical operation for forming the screw is mechanically controlled in the rotary die, it is not necessary to start and stop the motor each time the press is performed, and the motor may be kept rotating, as described in the first embodiment. That's right.

The above-described press unit 9 is mounted on the reciprocating plate 101. However, since the press unit itself has a structure in which a drive motor is incorporated, the drive source (motor) on the reciprocating plate 101 can be changed as in the conventional case. There is no need to provide it. Therefore, since it can be mounted in any mold position like a normal mold, the working process can be easily changed, and the press unit can be easily replaced. It is easy to add a new rotary mold unit as well as other molds because it is simply attached. Also,
In the second embodiment, since the built-in motor is incorporated to directly drive the rotational force transmitting shaft 11b to rotate,
The motor pedestal 15 and the joint 17 required in the first embodiment are not required, the manufacturing cost is reduced, and the number of parts is reduced, so that the reliability is further improved.

Embodiment 3. In the above-described two embodiments, the rotary mold 2 is described as having a mechanism for processing a screw as shown in the finished shape C of FIG. Needless to say, it may be a mechanism for cutting the workpiece, a mechanism for bending the work, a curl mechanism, or an oiling mechanism.

[0019]

As described above, according to the present invention, at least the press unit housing, the rotary mold, the rotary force transmitting shaft, the rotary drive motor, and the joint are used to press the rotary drive motor. Since the structure is fixed to the unit housing and the rotary drive motor applies a rotational force to the rotary mold through the joint, there is no need to install a rotary mold drive unit separately from the press unit on the reciprocating plate. . Therefore, since it can be mounted at any die position, the working process can be easily changed, and the press unit can be easily replaced.
Further, it is possible to easily add a new rotary mold unit because it is simply attached to an arbitrary position like other molds.

According to the present invention, at least the press unit housing, the rotary mold, the rotational force transmitting shaft, and the built-in motor are formed, and the built-in motor is formed between the press unit housing and the rotational force transmitting shaft. ,
Since it has a structure that gives a rotating force to the rotating mold without a joint,
There is no need to provide a rotary die drive unit separately from the press unit on the reciprocating plate. Therefore, since it can be mounted at any die position, the working process can be easily changed, and the press unit can be easily replaced. In addition, it is possible to easily add a unit for a new rotary mold since it is simply attached to an arbitrary position like other molds. Further, since the built-in motor is incorporated to directly drive the rotational force transmission shaft to rotate, the motor pedestal and joints are not required, the manufacturing cost is reduced, and the number of parts is reduced, so that the reliability is further improved. There is.

[Brief description of drawings]

FIG. 1 is a schematic view of a mold mounting plate showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing a detailed structure of the press unit according to the first embodiment of the present invention.

FIG. 3 is a schematic view of a mold mounting plate showing a second embodiment of the present invention.

FIG. 4 is a schematic diagram showing a detailed structure of a press unit according to a second embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a press machine.

FIG. 6 is a diagram showing an example of a cross-sectional shape of a molding can by a press machine.

FIG. 7 is a schematic view of a conventional mold mounting plate.

[Explanation of symbols]

1 work, 2 rotation mold, 3 rotation drive motor, 4
Output shaft, 5 rotating mold shaft, 6 belt, 7 cover,
8 first rotary mold press unit, 9 second rotary mold press unit, 10 press unit housing,
11 rotational force transmission shaft, 14 motor, 15 motor pedestal, 16 motor shaft, 17 joint, 18 stator, 19
Rotor, 20 rotor, 21 stator coil

Claims (2)

[Claims] 1. A first die group and a second die group that reciprocates in opposition to the first die group are brought into contact with and separated from each other, the die is shifted in a sequential feed, and then brought into and out of contact again, and these are repeated to work from a material. A press unit with a rotation function that can be used in a press machine for molding, comprising at least a press unit housing, a rotary mold, a rotational force transmission shaft, a rotary drive motor, and a joint, and the rotary drive motor is A press unit with a rotating function, which is fixed to a press unit housing and configured to rotate the rotary mold by the rotation drive motor. 2. A first die group and a second die group that reciprocates in opposition to the first die group are brought into contact with and separated from each other, the die is shifted in sequence by feeding and then brought into and out of contact again, and these are repeated to work from a work piece. A press unit with a rotation function that can be used in a press machine for molding, comprising at least a press unit housing, a rotary mold, a rotational force transmission shaft, and a built-in motor, and the built-in motor has a press unit housing and a rotational force. A press unit with a rotating function, which is formed between transmission shafts and is configured to rotate the rotary mold by the built-in motor.