JP2002254200A - Continuous working device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a continuous working device capable of reconciling the working at a high speed and the height of freedom of a product shape. SOLUTION: In the continuous working device provided with a power source, a material feeding mechanism for carrying the material in the prescribed direction and a working unit which has at least a pair of metal molds and works the material, the material feeding mechanism carries the material by repeating the moving and stopping of the material, one pair of the metal molds is driven by a press unit and reciprocally moves between a working position and an open position, the other pair of the metal molds is driven by a slide unit and reciprocally moves between the working position and the open position, and the pair of the metal molds conducts the work of the material at the working position synchronizing with the material stopping of the material feeding mechanism, and enables to move the material at the open position synchronizing with the material moving of the material feeding mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous working apparatus for continuously performing mechanical working such as press working and forming work. The present invention relates to a continuous processing device that enables continuous processing.

[0002]

2. Description of the Related Art FIG. 1 shows the concept of a conventional example of a so-called press working apparatus for performing a press working of a continuously supplied material. The wound material 100 is taken out by the uncoiler 110, the deformation at the time of winding is corrected by the leveler 120, and supplied to the material feed mechanism 130 also referred to as a feeder. Pressing unit 1 by pitch
40.

[0003] In FIG. 1, for simplicity of explanation, one material is used.
The uncoiler that supplies only books is shown, but the uncoiler 11
There are a single type on which one material can be placed and a double type on which two materials can be placed. Although the following description is based on a single type uncoiler, it is obvious that a double type can also be used. The leveler 120 usually has a plurality of rollers provided in upper and lower two stages,
By passing the material through the gap, the curl of the material is corrected. The smaller the diameter of the roller, the stronger the correction in general. When the diameter of the roller is small, the roller may have a back roller mechanism for preventing escape. In a typical configuration, the material supply mechanism clamps the material near the top dead center of the press, releases the clamp near the bottom dead center, and corrects the feed length with the die pilot. There are a roll feed type that supplies the material sandwiched between two rolls and a gripper feed type that supplies the material by clamping it with a plate-like material. Regarding the present invention, any type may be used in the same manner. Therefore, the description will be made without particularly limiting the type.

The press working unit 140 includes an upper mold 142
And a pair of press dies 146 called lower dies 144. The material is plastically deformed by sandwiching and pressing the material therebetween. By such an operation, it is possible to perform processing such as embossing, punching, and opening a window depending on the shape of the mold. The lower die 144 can be adjusted vertically and horizontally, but is fixed at the processing stage, and the upper die 1 is fixed.
Pressing is performed by moving 42 up and down.

In some cases, the lower die 144 is provided with a knockout pin 148, and when the pressing is completed, the product 149 remaining in the lower die 144 is removed from the lower die 144.
Push out of 44. FIG. 2 is a diagram conceptually showing a state of the product 150 that has been pressed.

In the press working, products of various shapes can be manufactured by using various dies, but the shape of the products is limited to those that can be formed by moving the upper mold 142 in one direction. In addition, the shape is limited to a flat shape or a shape that is almost flat.

When the shape of the product is more complicated, a forming machine 200 is used instead of the press working unit 140.
Use FIG. 3 shows a concept of processing by the forming processing machine 200. Forming machine 20
No. 0 has a plurality of bending punches 220 spirally arranged around a forming mold 210 and a product 250, and enables molding of a complicated shape including three-dimensional bending of a wire. Things.

[Problems to be solved by the invention]

[0008] In the press working and the forming work, for example, in addition to the cost required for a mold and the like, the working speed represented by the number of products that can be worked per unit time is a very important factor. When the press working machine and the forming working machine described above are used, there are the following problems.

That is, when a conventional press machine is used, when a three-dimensional product is formed, the material cannot be moved in the horizontal direction thereafter.
The forming of the three-dimensional shape must always be final processing, and a step of extruding the product from the mold with a knock pin is required. As a result, the processing content, especially the final shape of the product, is limited, and the processing speed is limited. In addition, when using a forming machine, although there is a high degree of freedom regarding the product shape, the cost of the mold becomes extremely high, and various processing techniques are required together with measuring equipment such as cams and bending sensors. However, the processing speed has to be very slow.

One of the factors limiting the processing speed of the conventional processing machine is the problem of braking ability. When performing continuous processing using a mold, the part to be cut remains without being cut, or the product completed by the knock pin is not properly ejected from the mold and is caught in the mold, etc.
Various problems may occur, and in this case, it is necessary to immediately stop the operation of the processing machine to prevent damage to the mold and the processing machine body. For this reason, the operating speed of the processing machine is not limited to the processing ability of the power source or the material feeding mechanism, but is limited by the braking ability that can stop the mold or the like without damaging it when a problem occurs. Often. Therefore, by improving the braking capacity of the processing machine, it becomes possible to increase the operating speed to the full processing capacity determined by the power source and the like.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a continuous processing apparatus capable of achieving both high-speed processing and a high degree of freedom in product shape. To provide. Further, the present invention provides
To provide a continuous processing device that improves a braking device, reduces a braking time, more precisely, the number of strokes from the start of braking to a complete stop of the device, and consequently enables high-speed operation. It is.

[0012]

In order to achieve the above object, the present invention comprises a power source, a material feeding mechanism for feeding a material in a predetermined material feeding direction, and at least one set of dies. In a continuous processing apparatus including a processing unit that processes the material, the material feeding mechanism transports the material by repeatedly moving and stopping the material, and one of the pair of molds is driven by the press unit, The reciprocating motion between the processing position and the open position, the other of the set of dies is driven by the slide unit to reciprocate between the processing position and the open position, and the set of the dies is used for material feeding. There is provided a continuous processing apparatus characterized in that a material is processed at a processing position in synchronization with a material stop of a mechanism, and that a material can be moved at an open position in synchronization with a material movement of a material feed mechanism.

[0013] In the case of the continuous machining apparatus having the above configuration, the upper die moves between the top dead center and the bottom dead center, and at the same time, the lower die moves between the bottom dead center and the top dead center. When is at the bottom dead center, the lower mold is at the top dead center and performs press working, and when the upper mold moves to the top dead center, the lower mold moves to the bottom dead center to release the product. Therefore, the opened product can be moved in the horizontal direction, and continuous horizontal feeding of the product can be performed.

According to another aspect of the present invention, there is provided a continuous machining apparatus including an intermediate gear for transmitting the power of a power source to a main gear, wherein a braking device is provided rather than the power source than the intermediate gear. .

According to the above configuration, the coasting operation distance from the start of braking to the stop of the surrounding apparatus can be shortened, and the limitation caused by the moving ability due to the operating speed of the continuous processing apparatus can be eliminated.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific structure, operation and effects of the present invention will be described below with reference to examples and drawings illustrating preferred embodiments of the present invention.

FIG. 4 shows a processing unit 400 of a press machine as an example of a continuous processing apparatus according to the present invention. The processing unit 400 is an alternative to the press processing unit 140 belonging to the related art shown in FIG. 1, and it is assumed that the continuous processing apparatus includes the uncoiler, leveler, and feeder shown in FIG. The processing unit 400 includes the upper mold 42 mounted on the press unit 410.
0 and the lower mold 440 attached to the slide unit 430
And a pair of molds 4
The reference numerals 20 and 440 approach or separate in the vertical direction as the press unit 410 and the slide unit 430 move. On the other hand, the material 450 to be a product has a rod shape or a plate shape, and is unwound at a predetermined pitch from the right side to the left side of the paper by a material feeding mechanism (not shown).

In the case of the configuration illustrated in FIG. 4, the material is conveyed by one pitch from right to left before and after the pair of dies 420 and 440 are at the most distant position, and stopped there. I do. Next, a pair of molds 420 and 440 are
Press working is performed close to the processing position which is the closest position to each other. Pressable contents include bending, embossing, cutting, etc., as already described. It is desirable to select a vertical position of the processing position that does not generate excessive bending stress or the like in the material.

When the pressing process is performed, the pair of molds 420 and 440 are separated from each other, and in the example shown in the figure, the product 4 is still integrated with the rod-shaped or plate-shaped material 450.
Release 60. In this state, the upper mold 420 is moving upward and the lower mold 440 is moving downward, so that the product 460 has unevenness in the vertical direction,
The product can move horizontally left without interfering with the molds 420,440. Therefore, the material feeding mechanism feeds the material in the left direction on the paper to press the next product, and the finished product is sequentially fed left from the mold. FIG. 5 schematically illustrates the state during this time.

In order for the continuous processing apparatus to perform the above-described movement, the material feeding mechanism and the vertical movement of the dies 420 and 440 need to be synchronized. It is also possible to provide actuators that are electrically driven and controlled independently of the feeding mechanism and the press unit 410 and the slide unit 430, respectively, and to electrically control the movement of these actuators. Driven by a power source, a feeding mechanism, a press unit 410 and a slide unit 43
0 may be mechanically linked with the main gear via a gear or the like. In the latter case, the movement direction can be changed and the timing can be adjusted by appropriately providing a cam mechanism or the like.

In the above-described embodiment, each component has been described for press working. However, the working unit does not need to be limited to press work. Press work, forming work, bending work, drawing work, compression work, and hole work Regardless of punching, burring, coiling, cutting, and the like, moving both sets of molds enables high-speed and smooth feeding of the material.

Further, the continuous processing apparatus does not need to have one processing unit, and a plurality of processing units are arranged in series, and an intermediate product that has been processed by the first processing unit is not used. The fact that the second processing unit can be configured to perform further processing is the same as the conventional processing apparatus. When a plurality of processing units are used in combination, the type of processing unit used may be any of press processing, forming processing, and the like as described above, and may be the same or different. It may be of any type. FIG. 6 shows some configuration examples of the continuous processing apparatus. In the figure, for example, 600 is a secondary working press working device, 610 is a tapping unit for thread cutting, and 620 is a blank working press working device. 630 is a press working device, and 640 is a welding unit.

Next, a part of the braking device of the continuous machining apparatus according to the present invention will be described below. FIG. 7 schematically shows an example of a conventional driving and braking mechanism.
In the figure, a drive shaft 700 connected to a power source such as a motor (not shown) includes a power transmission plate 710 and a flywheel 7.
Rotate 20. A ram 730 connected to a press unit or the like (not shown) is connected to a crankshaft 740.
0 is provided. The clutch plate 750 rotates with the crankshaft 740 at the same time as it moves in the axial direction of the crankshaft, separates from the connection position where the power transmission plate is contacted with the power transmission plate 710 to receive power, and a braking plate (not shown). ) To stop the rotation of the crankshaft in contact with the braking position, or an intermediate position between them.

On the other hand, in the continuous machining apparatus shown in FIG. 8 according to the present invention, an intermediate transmission gear 820 and an intermediate gear 830 are provided between a drive shaft 800 driven by a power source (not shown) and a crankshaft 810. In this configuration, a drive / control mechanism including a power transmission plate 840 and a clutch plate 850 is provided on the power source side of the speed reduction mechanism, that is, on the high-speed rotation side. In the case of this configuration, if the rotation of the crankshaft is the same as that of the conventional processing device, in the case of the present invention, the clutch plate 850 is used.
Rotates at a higher speed, and by applying a braking force at this position, a higher speed braking is possible. That is, the angle at which the crankshaft rotates from the start of braking to the complete stop is reduced. This is because if the braking force is the same, the configuration according to the present invention increases the amount of work according to the rotation speed of the clutch plate or the braking plate, so that the kinetic energy of the crankshaft is effectively converted to thermal energy. Because it can be.

It has already been mentioned that the increased braking capacity can result in a substantial increase in the operating speed of the device, which results in a reduction in the production costs of the product.

The above-described configurations of the present invention all contribute to an increase in the degree of freedom of machining and a substantial speed-up of continuous machining. The above description and the accompanying drawings are given by way of example to facilitate understanding of the present invention. Regarding the specific device configuration, many modifications are possible based on the description of the present specification based on the technical concept of the present invention. It is self-evident that the question is possible.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a conventional press working device.

FIG. 2 is a view showing the concept of conventional press working.

FIG. 3 is a conceptual diagram illustrating a conventional forming apparatus.

FIG. 4 is a diagram showing a processing unit of a less processing machine as an example of a continuous processing apparatus according to the present invention.

FIG. 5 is a diagram showing how a product is transported in the processing unit according to the present invention.

FIG. 6 illustrates a configuration of a continuous processing apparatus based on the present invention.

FIG. 7 is a schematic diagram showing a driving / braking mechanism of a conventional continuous processing apparatus.

FIG. 8 is a schematic view showing a driving / braking mechanism of the continuous processing apparatus according to the present invention.

[Explanation of symbols]

 400 processing unit 410 press unit 420 upper die 430 slide unit 440 lower die 800 drive shaft 810 crankshaft 820 intermediate transmission gear 830 ... Intermediate gears 830 840 ... Power transmission plate 850 ... Clutch plate

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court ゛ (Reference) B21D 45/04 B21D 45/04 Z

Claims (6)

[Claims] 1. A continuous processing apparatus comprising: a power source; a material feeding mechanism for feeding a material in a predetermined material feeding direction; and a processing unit having at least one set of dies to process the material. The material feeding mechanism conveys the material by repeatedly moving and stopping the material, and one of the pair of dies is driven by the press unit to reciprocate between the processing position and the opening position, and the The other side of the mold is driven by the slide unit to reciprocate between the machining position and the open position, and a set of molds performs the machining of the material at the machining position in synchronization with the material stop of the material feed mechanism. A continuous processing apparatus characterized in that the material can be moved at the open position in synchronization with the material movement of the material feeding mechanism. 2. The apparatus according to claim 1, further comprising a main gear driven by a power source, wherein the material feeding mechanism, the press unit, and the slide unit are driven by the main gear. Continuous processing equipment. 3. The method according to claim 1, wherein the processing includes at least one of pressing, forming, bending, drawing, compression, punching, burring, coiling, and cutting. 3. The continuous processing apparatus according to any one of 2. 4. The continuous machine according to claim 1, further comprising an uncoiler for supplying the wound material to the material feeding mechanism, and a leveler for correcting residual deformation of the material. Processing equipment. 5. The continuous processing apparatus according to claim 1, further comprising a plurality of processing units for performing the same or different types of processing. 6. An apparatus according to claim 1, further comprising an intermediate gear for transmitting the power of the power source to the main gear, wherein a braking device is provided rather than the intermediate gear. Continuous processing equipment.