JP2007130682A - Press working apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a press working apparatus with which production efficiency can be rapidly raised, drawn goods can be mass-produced at very low cost and excellent in practicality. <P>SOLUTION: This apparatus is a press working apparatus which is composed of a conveying mechanism for continuously conveying a planar base material 1 and a press mechanism by which press working is performed with a female die 3 and a male die 4 which are opposed to portions 2 to be worked of the planar base material 1 conveyed with this conveying mechanism. The press mechanism has a roughly drawing part 6 and a form-drawing part 7 for form-drawing the roughly drawn portion 2 to be worked, a first oil sticking mechanism 3 for sticking oil to the portion part 2 to be worked is provided in the position on the upstream side of the conveyance of the roughly drawn portion and a second oil sticking mechanism 9 for sticking the oil to the roughly drawn portion 2 to be worked is provided between the roughly drawing part 6 and the forming drawing part 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a press working apparatus.

  There is a press processing apparatus that sequentially performs press processing such as bending processing and drawing processing by using a male mold and a female mold facing each other at a processing site of a plate-like base material.

  By the way, the drawing process is performed after a lubricating oil called a drawing oil is previously applied to a processing site and dried. Therefore, in the conventional press working apparatus, the plate-like base material conveyed before the drawing portion for drawing is stopped, and an operator manually supplies oil to the processing portion of the plate-like base material. Is applied and dried, and then drawing is performed.

  However, as described above, as long as the intermittent conveyance method is adopted in which the conveyance of the plate-like base material is temporarily stopped every time the squeezing oil is applied and the conveyance is resumed after the operation is completed, the production efficiency is dramatically improved. Can't hope.

  In the present invention, in view of the current situation as described above, it is possible to dramatically increase production efficiency compared to the conventional case by performing drawing while continuously conveying a plate-like base material without stopping it halfway. Therefore, the present invention provides a press working apparatus with excellent practicality capable of mass-producing drawn products at a very low cost.

  The gist of the present invention will be described with reference to the accompanying drawings.

  Press processing is sequentially performed by a transport mechanism that continuously transports the plate-shaped substrate 1 and a female mold 3 and a male mold 4 that face the processing portion 2 of the plate-shaped substrate 1 transported by the transport mechanism. A press working apparatus comprising a press mechanism, wherein the press mechanism molds and squeezes a rough drawing processing portion 6 that preliminarily performs rough drawing for forming drawing and a rough-drawn processing portion 2 described later. A first oil adhering mechanism 8 for adhering oil to the processing site 2 is provided at a position upstream of the rough drawing unit 6 in the conveying direction. A second oil adhering mechanism 9 for adhering oil to the rough-drawn processing portion 2 is provided between the drawing portion 7 and the press working apparatus.

  Further, in the press working apparatus according to claim 1, a punching processing unit 5 for punching a predetermined portion of the plate-like base material 1 is provided at a transport upstream side position of the rough drawing processing unit 6. The present invention relates to a featured press working apparatus.

  Further, in the press working apparatus according to any one of claims 1 and 2, in the downstream side position of the molding drawing processing unit 7, the rough drawing processing unit 6 and the molding drawing processing unit 7 process the processing. The present invention relates to a press working apparatus characterized in that a separation mechanism 30 is provided for separating the processing parts 2 in a plurality of continuous states.

  The press working apparatus according to claim 1, wherein the first oil adhesion mechanism 8 or the second oil adhesion mechanism 9 is an oil adhesion that causes oil to adhere to the plate-like substrate 1. The press working apparatus is characterized by comprising a portion 10 and an oil drying portion 11 for drying the oil adhered by the oil adhering portion 10.

  5. The press working apparatus according to claim 4, wherein a mixed oil obtained by mixing a highly viscous oil and a highly volatile oil is used as the oil. It is.

  Further, in the press working apparatus according to any one of claims 4 and 5, as the oil adhering portion 10 of the first oil adhering mechanism 8, the plate-like base material 1 and the female of the rough drawing portion 6 are provided. The present invention relates to a press working apparatus characterized in that a roller-type oil-impregnated material 12 for adhering oil to the surface side in contact with the mold 3 is employed.

  Moreover, the press work apparatus of any one of Claims 4-6 WHEREIN: As the oil adhesion part 10 of the said 2nd oil adhesion mechanism 9, the surrounding surface of the protrusion part 13 formed by protrusion by the said rough drawing part 6 The present invention relates to a press working apparatus characterized in that an annular oil-impregnating material 14 for adhering oil to the surface is employed.

  Since the present invention is configured as described above, it is possible to dramatically increase the production efficiency as compared with the prior art, and the press working apparatus is excellent in practicality capable of mass-producing drawn products at a very low cost.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  By the first oil adhesion mechanism 8 and the second adhesion mechanism 9, oil is automatically adhered to the processing site 2 of the plate-like base material 1 before rough drawing and molding drawing. It can be continuously supplied without stopping the conveyance, and in addition to being able to obtain a large number of drawn products in a short time, labor costs can be reduced, and drawn products can be mass-produced at a lower cost. Become.

  Specific embodiments of the present invention will be described with reference to the drawings.

  In this embodiment, a transport mechanism that continuously transports the plate-shaped substrate 1, and a female mold 3 and a male mold 4 that face the processing site 2 of the plate-shaped substrate 1 transported by the transport mechanism. A press working apparatus comprising a press mechanism that sequentially performs press working, wherein the press mechanism includes a rough drawing processing portion 6 that preliminarily performs rough drawing for forming drawing described later, and the rough drawn processing portion. A first oil adhering mechanism 8 for adhering oil to the processing site 2 at a position upstream of the rough drawing processing unit 6, and the rough drawing processing unit 6. A second oil adhering mechanism 9 for adhering oil to the rough-drawn processing portion 2 is provided between the processing portion 6 and the formed drawing processing portion 7.

  Each part will be specifically described.

  As shown in FIG. 1, a plate-like substrate 1 made of metal such as aluminum is set in the material supply unit 15 in a wound state. The wound plate-like base material 1 is drawn out while being smoothed by a plurality of smoothing rollers 16 (leveling rollers) and introduced into the first oil adhesion mechanism 8.

  The oil (squeezed oil) adhered by the first oil adhesion mechanism 8 is generated when the metals come into contact with each other during the squeezing by the die (female die 3 and male die 4) of the rough drawing portion 6 described later. Scratch damage can be prevented, and generation of frictional heat due to continuous drawing work is prevented.

  The first oil adhesion mechanism 8 has an oil adhesion portion 10 that adheres oil to the plate-like substrate 1. Specifically, the oil adhering portion 10 is a sponge roller type that adheres oil to the surface side (upper surface side) of the plate-like base material 1 that contacts the female die 3 of the rough drawing portion 6. Oil-impregnated material 12 is adopted. In the figure, reference numeral 17 is a conveying roller, and 18 is an oil reservoir.

  The plate-like base material 1 to which oil has been attached after passing through the first oil adhesion mechanism 8 is punched by a punching processing unit 5 for punching a predetermined part of the plate-like base material 1 and the punching processing unit 5. It is introduced into a first press working machine 19 having a rough drawing section 6 for rough drawing a processing portion 2 set to a predetermined outer shape.

  Specifically, a punching unit 5 is provided at a position upstream of the rough drawing unit 6 in the conveyance. The punching portion 5 includes left and right end portions 28, the processing portion 2, and a belt-like connecting portion 21 that connects the left and right end portions 28 and the processing portion 2 from the plate-like base material 1. Punching teeth that are left to be punched out and cut forming teeth that form cuts 20 at the left and right end portions 28 are provided.

  The rough drawing process in the rough drawing unit 6 is performed using the female mold 3 and the male mold 4 having a shape with a slightly rougher R than the planned shape formed by the molding drawing process unit 7. At this time, even if the processing part 2 punched out by the punching part 5 is squeezed and contracted, the left and right end portions 28 and the processing part 2 are not separated. This is because the notches 20 formed in the left and right end portions 28 are expanded at the time of punching.

  In addition, each processing site 2 is provided with a positioning hole 23, and a male pin 4 (lower mold) is provided with a positioning pin (not shown) inserted into the hole 23, so that the processing site 2 is automatically provided during processing. Is arranged at a desired position. The same applies to the male mold 4 of the molding drawing section 7 described later.

  The plate-like base material 1 on which the processing site 2 has been subjected to rough drawing is introduced into the second oil adhesion mechanism 9.

  The second oil adhering mechanism 9 includes an oil adhering portion 10 for adhering oil to the processing site 2 and an oil drying portion 11 for drying the oil adhering to the oil adhering portion 10.

  Specifically, as the oil adhering portion 10 of the second oil adhering mechanism 9, a sponge-like annular oil-impregnating material 14 that adheres oil to the peripheral surface of the protruding portion 13 formed by the rough drawing processing portion 6 is employed. ing. Therefore, even if the oil adhered by the first oil adhering mechanism 8 is repelled by the rough drawing in the rough drawing processing section 6, a certain amount of oil is avoided only on the peripheral surface while avoiding the top surface portion of the protrusion 13 of the processing site 2. It becomes possible to attach oil, and it is possible to surely prevent galling scratches and corners from being cut during molding drawing.

  The annular oil-impregnated material 14 is impregnated with a mixed oil obtained by blending a highly volatile oil with a highly viscous oil. As the oil having high viscosity (high viscosity oil), for example, when the plate-like substrate 1 is made of aluminum, G-3772 manufactured by Nippon Kogyo Oil Co., Ltd., and when the plate-like substrate 1 is made of stainless steel are used. G755BM or the like may be employed. In addition, as the highly volatile oil (highly volatile oil), for example, when the plate-like base material 1 is aluminum, A-992 manufactured by Nippon Kogyo Oil Co., Ltd. is used, and the plate-like base material 1 is stainless steel. In this case, G-6030M manufactured by Nippon Tool Oil Co., Ltd. may be employed. The oil used in the first oil adhesion mechanism 8 may be any oil as long as it is a generally used squeezed oil, or a mixed oil obtained by blending a highly volatile oil with the above-mentioned high viscosity oil. It may be used.

  In addition, as the oil drying unit 11 of the second oil adhesion mechanism 9, an air supply device 29 having a heater inside is employed. The air supply device 29 is provided at a downstream position of the annular oil-containing material 14 in the conveyance. In the figure, reference numeral 24 is an oil reservoir, and 25 is a blower.

  Therefore, by applying the hot air from the air supply device 29 to the processing part 2 to which the mixed oil is adhered, the oil can be dried quickly without volatile components being blown off and dripping while the oil is well-balanced. Even if the squeezed oil is high and difficult to extend, it is possible to coat the peripheral surface of the protruding portion 13 uniformly with a thin film, and dents are generated at the processing site 2 because the oil is unevenly provided at the time of molding squeezing. In addition, the oil adhering to the peripheral surface of the protruding portion 13 is reliably prevented from transferring to the top surface portion. Furthermore, the generation of frictional heat associated with continuous drawing work can be prevented. Moreover, the drying time of oil is shortened, and it can manufacture efficiently.

  That is, the squeezed oil has a high viscosity. Especially when the squeezed oil is excessively applied at the time of molding squeezing or the squeezed oil adheres to the top surface portion of the projecting portion 13, the squeezed oil is pressed (pressed by the female mold 3 and the male mold 4 When pressing strongly at the bottom dead center), the periphery of the processing part 2 is sealed by the female mold 3 and the male mold 4, so that there is no escape space for the squeezed oil and oil wrinkles are generated in the processing part 2. Although there is a risk of damaging the mold, the occurrence of such a problem is surely prevented in this embodiment.

  In the present embodiment, the oil drying unit 11 is not provided in the first oil adhesion mechanism 8, but the oil drying unit 11 may be provided in the first oil adhesion mechanism 8. Further, since the top surface portion of the processing site 2 is not pressed by the female die 3 during rough drawing, the dent on the top surface portion is hardly generated, but an annular oil-impregnated material may be employed.

  Therefore, in this embodiment, the oil can be automatically adhered to the plate-like base material 1 (processed portion 2) before the rough drawing and the molding drawing, and the oil application work is not required manually. It becomes possible to perform press working including drawing processing while continuously conveying materials, and it is possible to dramatically improve production efficiency.

  The plate-like base material 1 in which oil is adhered to the peripheral surface of the protruding portion 13 of the processing site 2 is introduced into a second press machine 26 provided with a molding drawing processing portion 7 as shown in FIG. .

  The molding drawing processing in the molding drawing processing unit 7 is performed using the female mold 3 and the male mold 4 that are approximately the same size (slightly larger) as the shape to be molded. In addition, in the slot A to slot D provided in the second press processing machine 26 at the conveyance downstream position of the molding drawing unit 7, top surface punching, side edge cutting, half-cutting is performed according to the desired molding shape. There are provided a female mold and a male mold that perform cut processing (processing that enables the processing portion 2 to be broken and dismantled manually by cutting the connecting portion half way) and engraving.

  The plate-like base material 1 that has been pressed is introduced into the separation mechanism 30, and a plurality of the processing parts 2 processed by the rough drawing processing unit 6 and the shaping drawing processing unit 7 are connected to each other. Disconnected sequentially.

  Specifically, the separation mechanism 30 includes a counting unit that includes a sensor that counts the processed portion 2 where the press working has been completed, and a counter that counts the number of detections by the sensor. Therefore, for example, when the number of detections reaches 4, if the plate-like base material 1 (left and right end portions 28) is cut and the number of detections is reset, the four processed parts 2 are connected. It is cut in the state.

  That is, in this embodiment, it is configured not to be separated for each processing site 2 but to be separated from the plate-like substrate 1 in a state where a plurality of the processing sites 2 are connected.

  Therefore, it is possible to perform subsequent secondary processing (cleaning, blasting, alumite coating, printing, etc.) collectively by separating the plurality of processing parts 2 in a connected state. For example, as shown in FIG. When four pieces are separated together, the work time required for the secondary processing can be reduced to about ¼, and the production efficiency is improved from this point.

  Since the present embodiment is configured as described above, the first oil adhering mechanism 8 and the second adhering mechanism 9 automatically apply oil to the processing site 2 of the plate-like substrate 1 before rough drawing and molding drawing. Since it is adhered, it can be continuously supplied without stopping the conveyance of the plate-like base material 1, and it is possible to obtain a large number of drawn products in such a short time, as well as to reduce labor costs. This enables mass production of drawn products at a lower cost.

  Further, by separating the processing part 2 from the base material in a state where a plurality of processing parts 2 are connected by the left and right end portions 28, it is possible to greatly reduce the work time required for the subsequent secondary processing.

  Therefore, the present embodiment is a press working apparatus excellent in practicality capable of dramatically increasing production efficiency as compared with the prior art and capable of mass-producing drawn products at a very low cost.

It is a schematic explanatory drawing which shows the process first half process of a present Example. It is a schematic explanatory drawing which shows the process latter half process of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate-shaped base material 2 Processing site | part 3 Female type | mold 4 Male type | mold 5 Punching process part 6 Coarse drawing process part 7 Molding drawing process part 8 1st oil adhesion mechanism 9 2nd oil adhesion mechanism
10 Oil adhering part
11 Oil drying section
12 Roller type oil-impregnated material
13 Protrusion
14 Donut type oil-impregnated material
30 Decoupling mechanism

Claims (7)

  A conveyance mechanism that continuously conveys a plate-like base material, and a press mechanism that sequentially presses a female die and a male die facing a processing portion of the plate-like substrate conveyed by the conveyance mechanism. The press mechanism includes a rough drawing section that preliminarily rough-draws for forming drawing, which will be described later, and a molding drawing section that forms and draws the rough-drawn processing portion. In addition, a first oil adhering mechanism for adhering oil to the processing site is provided at a position upstream of the rough drawing unit, and the rough drawing is performed between the rough drawing unit and the molding drawing unit. A press working apparatus characterized in that a second oil adhering mechanism for adhering oil to a processing site is provided.   2. The press working apparatus according to claim 1, wherein a punching processing portion for punching a predetermined portion of the plate-like base material is provided at a position upstream of the rough drawing processing portion. apparatus.   The press working apparatus according to any one of claims 1 and 2, wherein a plurality of the processing parts processed by the rough drawing processing unit and the molding drawing processing unit are connected to a downstream side position of the forming drawing processing unit. A press working apparatus, characterized by being provided with a separation mechanism for separating in the installed state.   4. The press working apparatus according to claim 1, wherein the first oil adhesion mechanism or the second oil adhesion mechanism includes an oil adhesion portion that adheres oil to the plate-like base material, and the oil. A press working apparatus comprising an oil drying unit for drying the oil adhered by the adhesion unit.   5. The press working apparatus according to claim 4, wherein a mixed oil obtained by mixing a highly viscous oil and a highly volatile oil is employed as the oil.   6. The press working apparatus according to claim 4, wherein the oil adhesion portion of the first oil adhesion mechanism is a surface side that contacts the female die of the rough drawing portion as the plate-like base material. 2. A press working apparatus characterized in that a roller-type oil-impregnating material that allows oil to adhere to is used.   The press working apparatus according to any one of claims 4 to 6, wherein an oil is attached to a peripheral surface of a protruding portion formed by the rough drawing portion as the oil attaching portion of the second oil adhesion mechanism. A press working apparatus characterized by using an oil-impregnated material.

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