JP3736676B2 - Continuous processing equipment - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a continuous processing apparatus that continuously performs mechanical processing such as press processing and forming processing, and in particular, as an extension of press processing technology, continuous processing that enables high-speed continuous processing of a material supplied in the form of a continuous body. The present invention relates to a processing apparatus.
[0002]
[Prior art]
FIG. 1 shows a concept of a conventional example of a so-called press working apparatus for performing press working of continuously supplied materials. 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 a material feeding mechanism 130 also called a feeder. The material feeding mechanism 130 Supplied to the press unit 140 by pitch.
[0003]
In FIG. 1, an uncoiler that supplies only one material is shown for simplification of explanation, but the uncoiler 110 includes a single type that can carry one material and a double type that can carry two materials. . The following description is based on a single type uncoiler, but it is obvious that a double type can be used. The leveler 120 usually has a plurality of rollers provided in two upper and lower stages, and the curl of the material is corrected by passing the material therebetween. In general, the thinner the roller, the stronger the correction. There may be a back roller mechanism for preventing escape when the diameter of the roller is small. In the case of 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 mold pilot. There are roll feed molds that supply materials by sandwiching them between two rolls, and gripper feed molds that clamp and supply materials with a plate-like material. Therefore, the description will be made without limiting to which type.
[0004]
The press working unit 140 includes a pair of press dies 146 called an upper die 142 and a lower die 144, and the material is plastically deformed by pressing the material between them. By this operation, processing such as embossing, punching, and window punching can be performed depending on the shape of the mold. The position of the lower mold 144 can be adjusted in the vertical and horizontal directions, but is fixed in the processing stage, and press processing is performed by the upper mold 142 moving up and down.
[0005]
In some cases, the lower die 144 is provided with a knockout pin 148, and when the press working is finished, the product 149 remaining in the lower die 144 is pushed out of the lower die 144. FIG. 2 is a diagram conceptually showing the state of the product 150 being pressed.
[0006]
In press working, various shapes of products can be manufactured by using various molds, but the product shape is limited to that which can be formed by one-way movement of the upper die 142. Or a shape close to a plane.
[0007]
When the shape of the product is more complicated, the forming machine 200 is used instead of the press unit 140. FIG. 3 shows the concept of machining by the forming machine 200. The forming machine 200 includes a plurality of bending punches 220 arranged spirally around a forming mold 210 and a product 250, and forms a complicated shape including three-dimensional bending of a wire. It is what makes it possible.
[Problems to be solved by the invention]
[0008]
In press processing and forming processing, for example, the processing speed expressed by the number of products that can be processed per unit time is a very important factor in addition to the cost required for dies, etc. When a machine or a forming machine is used, there are the following problems.
[0009]
In other words, when a conventional press machine is used, if a three-dimensional product is formed, the material cannot be moved in the horizontal direction thereafter. In addition, a process for extruding the product from the mold with a knock pin is required. As a result, the content of processing, particularly the final shape of the product, is limited, and the processing speed is limited. In addition, when a forming machine is used, although the degree of freedom of the product shape is high, the cost of the mold becomes very high, and various processing techniques are required along with measuring equipment such as cams and bending sensors. The processing speed must be very slow.
[0010]
One of the factors that limit the processing speed of the conventional processing machine is a problem of braking ability. When performing continuous processing using a mold, the part to be cut remains without being cut, or the finished product by the knock pin is not properly ejected from the mold and gets caught in the mold, etc. Various problems may occur. 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 by the processing capability by the power source or the material feed mechanism, but by the braking capability that can be stopped without damaging the mold or the like when a malfunction occurs. There are many cases. Therefore, by improving the braking capability of the processing machine, it is possible to increase the operation speed to the full processing capability determined from the power source or the like.
[0011]
The present invention is intended to solve the above-mentioned problems of the prior art, and provides a continuous processing apparatus capable of achieving both high-speed processing and a high degree of freedom in product shape. It is. Furthermore, the present invention improves the braking system and reduces the braking time, more precisely the number of strokes from the start of braking to the complete stop of the system, resulting in a continuous high speed operation. A processing apparatus is provided.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a power source, a material feed mechanism for transporting material in a predetermined material feed direction, and a processing unit for processing material having at least one set of molds. In the continuous processing equipment provided,
The material feeding mechanism conveys the material by repeatedly moving and stopping the material,
One of the set of molds is driven by a press unit to reciprocate between a machining position and an open position,
The other of the set of molds is driven by a slide unit to reciprocate between a machining position and an open position,
A set of molds is characterized in that the material is processed at the processing position in synchronization with the material stop of the material feeding mechanism, and the material can be moved in the open position in synchronization with the material movement of the material feeding mechanism. A continuous processing apparatus is provided.
[0013]
In the case of the continuous processing apparatus having the above configuration, the upper mold moves between the top dead center and the bottom dead center, and at the same time, the lower mold moves between the bottom dead center and the top dead center, and the upper mold is bottom dead. When the upper die moves to the top dead center, the lower die moves to the bottom dead center and presses when the lower die is at the top dead center. Accordingly, the released product can move in the horizontal direction, and the product can be continuously fed in the horizontal direction.
[0014]
Further, according to another aspect of the present invention, there is provided a continuous machining apparatus that includes an intermediate gear that transmits power from a power source to a main gear, and is provided with a braking device from the power source rather than the intermediate gear.
[0015]
According to the above configuration, it is possible to shorten the repulsive driving distance from the start of braking until the enclosing device stops, and to eliminate the restriction caused by the moving speed of the continuous machining apparatus.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific configurations, operations, and effects of the present invention will be described with reference to examples and drawings illustrating preferred embodiments of the present invention.
[0017]
FIG. 4 shows a processing unit 400 portion of a press machine as an example of a continuous processing apparatus according to the present invention. The processing unit 400 replaces the press processing unit 140 belonging to the prior art shown in FIG. 1, and the continuous processing apparatus is assumed to include the uncoiler, leveler, and feeder shown in FIG. The processing unit 400 includes a set of molds including an upper mold 420 mounted on the press unit 410 and a lower mold 440 mounted on the slide unit 430. The set of molds 420 and 440 includes As the press unit 410 and the slide unit 430 move, they approach or separate in the vertical direction. On the other hand, the material 450 to be a product has a rod shape or a plate shape, and is fed out at a predetermined pitch from the right side to the left side of the sheet by a material feeding mechanism (not shown).
[0018]
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 molds 420 and 440 are at the most separated positions, and stops there. Next, the pair of molds 420 and 440 approach the processing position that is the closest position to each other and perform press processing. The contents that can be pressed are bending, embossing, cutting, etc., as already described. As the vertical position of the processing position, it is desirable to select a position that does not generate excessive bending stress or the like in the material.
[0019]
When the pressing is performed, the set of molds 420 and 440 are separated from each other to open the product 460 that is still integrated with the rod-like or plate-like material 450 in the illustrated example. In this state, the upper mold 420 has moved upward and the lower mold 440 has moved downward, so that the product 460 has concavo-convex portions in the vertical direction, but the product is the mold 420, 440. It can move in the horizontal left direction without interfering with. Therefore, the material feeding mechanism feeds the material in the left direction of the paper surface to press the next product, and the completed product is sequentially fed out from the mold in the left direction. FIG. 5 schematically illustrates the state during this time.
[0020]
In order for the continuous processing apparatus to move as described above, it is necessary that the material feeding mechanism and the vertical movement of the molds 420 and 440 are synchronized with each other. The press unit 410 and the slide unit 430 can be provided with actuators that are electrically driven and controlled independently, and the movement of these actuators can be electrically controlled, but one main gear is controlled by a power source. The feeding mechanism, the press unit 410 and the slide unit 430 may be mechanically interlocked 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.
[0021]
In the above-described embodiments, each component has been described for press processing. However, the processing unit is not limited to press processing, and press processing, forming processing, bending processing, drawing processing, compression processing, punching, burring. Whether it is coiling, cutting, or the like, the material can be fed at high speed and smoothly by moving both sets of molds.
[0022]
Furthermore, it is not necessary that the continuous processing apparatus includes one processing unit. For the intermediate product in which a plurality of processing units are arranged in series and the processing by the first processing unit is finished, the second processing unit is provided. The processing unit can be configured to perform further processing, similar to the conventional processing apparatus. When a plurality of processing units are used in combination, the types of processing units used may be any of press processing, forming processing, etc., as described above, and may be the same or different. It may be of a kind. FIG. 6 shows some configuration examples of the continuous processing apparatus. In the figure, for example, 600 is a press working device for secondary processing, 610 is a tapping unit for thread cutting, and 620 is a press working device for blank processing. Reference numeral 630 denotes a press working apparatus, and 640 denotes a welding unit.
[0023]
Next, the brake device portion 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) rotates a power transmission plate 710 and a flywheel 720. A ram 730 connected to a press unit (not shown) is connected to a crankshaft 740, and a clutch plate 750 is provided on the crankshaft 740. The clutch plate 750 rotates together with the crankshaft 740 and simultaneously moves in the axial direction of the crankshaft to come into contact with the power transmission plate 710 and the connection position for receiving power transmission and the brake transmission plate (not shown). ) To stop the rotation of the crankshaft, or an intermediate position thereof.
[0024]
On the other hand, the continuous machining apparatus according to the present invention shown in FIG. 8 includes an intermediate transmission gear 820 and an intermediate gear 830 between a drive shaft 800 driven by a power source (not shown) and a crankshaft 810. A speed reduction mechanism is provided, and a drive / control mechanism including a power transmission plate 840 and a clutch plate 850 is provided on the power source side, that is, the high speed rotation side of the speed reduction mechanism. According to this configuration, if the rotation of the crankshaft is made the same as that of the conventional processing apparatus, the rotation of the clutch plate 850 becomes faster in the case of the present invention, and a higher speed can be achieved by applying a braking force at this position. Braking becomes possible. That is, the angle at which the crankshaft rotates from the start of braking to the complete stop decreases. This is because, if the braking force is the same, the work according to the configuration of the present invention increases in accordance with the rotational speed of the clutch plate or the brake plate, so that the kinetic energy of the crankshaft is effectively converted into thermal energy. Because you can.
[0025]
As described above, it is possible to substantially increase the operation speed of the device as a result of the expansion of the braking capability, resulting in a reduction in the manufacturing cost of the product.
[0026]
Each of the above-described configurations of the present invention contributes to a substantial increase in the speed of continuous machining while expanding the degree of freedom of machining. The above description and the accompanying drawings have been illustrated to assist the understanding of the present invention, and a number of modifications regarding the specific apparatus configuration based on the technical idea of the present invention based on the description of the present specification. It is obvious to the trader who asks that this is possible.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing a conventional press working apparatus.
FIG. 2 is a diagram showing a concept of conventional press working.
FIG. 3 is a conceptual diagram showing 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 based on the present invention.
FIG. 5 is a diagram showing a state in which a product is conveyed in a processing unit according to the present invention.
FIG. 6 illustrates the 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 machining apparatus.
FIG. 8 is a schematic diagram showing a driving / braking mechanism of a continuous machining 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 ... Crank shaft 820 ... Intermediate transmission gear 830 ... Intermediate gear 830
840 ... Power transmission plate 850 ... Clutch plate

Claims (4)

A power source, an intermediate gear that transmits power from the power source to the main gear, a main gear that is driven by the power source via the intermediate gear, a material feed mechanism that transports material in a predetermined material feed direction, and at least one set In a continuous processing apparatus comprising a processing unit for processing a material having a mold,
The material feeding mechanism conveys the material by repeatedly moving and stopping the material,
One of the set of molds is driven by a press unit to reciprocate between a machining position and an open position,
The other of the set of molds is driven by a slide unit to reciprocate between a machining position and an open position,
The material feeding mechanism, the press unit, and the slide unit are driven by the main gear,
A set of molds processes the material at the processing position in synchronization with the material stop of the material feeding mechanism, and also interferes with the product having unevenness in the vertical direction at the open position in synchronization with the material movement of the material feeding mechanism. Without having to move the material horizontally
The continuous machining apparatus further comprises a braking device provided closer to the power source than to the intermediate gear . The continuous processing apparatus according to claim 1 , wherein the processing includes at least one of press processing, forming processing, bending processing, drawing processing, compression processing, punching, burring, coiling, and cutting. . Moreover, the uncoiler supplies wound material in the material feed mechanism, a continuous machining device according to any one of claims 1, characterized by comprising a leveler for correcting a residual deformation of the material 2. Continuous processing apparatus according to any one of claims 1, characterized in that it comprises a plurality of processing units for performing processing of the same or different type 3.

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