JP6090189B2 - Swing press equipment - Google Patents

Description

  The present invention relates to a swing press apparatus.

  Patent Document 1 discloses a swing processing apparatus that presses a workpiece by sandwiching the workpiece between a plate-like base and a rolling element having an arcuate convex curved surface, and rolling the rolling element. Specifically, by forming a guide groove in the rolling element and guiding it with a guide pin provided on the base side, the rolling element can be accurately rolled. According to such a swing type processing apparatus, it is described that processing can be performed with high accuracy.

  In addition, there is a swing press device that presses a workpiece by swinging an upper die having an arcuate convex curved surface. A device having the same configuration as the swing press device can be manufactured by performing a predetermined design change on the swing type processing device disclosed in Patent Document 1.

International Publication No. 2008/149760

  By the way, there is a demand for a swing press apparatus that can be cut while being pressed. For example, such a swing press apparatus can obtain a plurality of single-wafer press products from a single band-like work in a single step.

  On the other hand, in the swing type processing apparatus disclosed in Patent Document 1, it is not considered to perform pressing and cutting in the same process.

  It is also conceivable to obtain a plurality of sheet-like processed products by forming a strip-shaped pressed product using a pair of roll dies and cutting it. However, for example, as shown in FIG. 23, the press-processed product P70 is cut using the cutting blades C1 and C2. Then, as shown in FIG. 24, a return and a burr | flash may generate | occur | produce in the cut surfaces P73 and P74, and it was difficult to obtain the sheet-fed press processed goods which have a smooth cut surface.

  The present invention has been made against the background described above, and it is an object of the present invention to provide a swing press apparatus capable of cutting while pressing a workpiece.

The swing press device according to the present invention is:
A swing press device that swings an upper die and a lower die to press a workpiece,
An upper cutting blade provided at the front end of the upper mold or the rear end of the upper mold;
A lower cutting blade provided at the front end of the lower mold or the rear end of the lower mold;
An upper contact member (for example, an upper positioning block) provided in the upper mold;
A lower contact member (for example, a lower positioning block) provided in the lower mold,
The upper contact member and the lower contact member contact each other at a cutting position when the upper mold and the lower mold are swung.

  According to such a configuration, the workpiece can be cut while being pressed. Moreover, it can cut | disconnect, making an upper side contact member and a lower side contact member contact | abut, can position an upper mold | type and a lower mold more correctly, and can cut | disconnect more correctly.

  ADVANTAGE OF THE INVENTION According to this invention, the swing press apparatus which can cut | disconnect, pressing a workpiece | work can be provided.

It is a front view of the swing press apparatus concerning Embodiment 1. FIG. It is a side view of the swing press apparatus concerning Embodiment 1. FIG. It is a perspective view of an example of the processed product obtained using the swing press apparatus concerning Embodiment 1. FIG. It is a figure which shows an example of the principal part of a processed product. It is a figure which shows an example of the processed product after a cutting | disconnection. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a perspective view of the principal part of the swing press apparatus concerning Embodiment 2. FIG. It is a perspective view of the principal part of the swing press apparatus concerning Embodiment 2. FIG. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a schematic diagram which shows a swing press method. It is a figure which shows an example of the processed goods of a related technique. It is a figure which shows an example of the processed goods after the cutting | disconnection of a related technique.

Embodiment 1 FIG.
The swing press apparatus according to the first embodiment will be described below with reference to FIGS. 1 and 2. FIG. 1 is a front view of the swing press apparatus according to the first embodiment. FIG. 2 is a side view of the swing press apparatus according to the first embodiment.

  As shown in FIGS. 1 and 2, the swing press apparatus 100 includes a lower base 10, an upper base 20, an elevating base 40, an upper mold 30, and a lower mold 50. The swing press apparatus 100 is an apparatus that presses a workpiece by swinging an upper mold 30 and a lower mold 50.

  The lower base 10 is fixed to an installation table or the like, and is a substantially rectangular plate-shaped base. At the four corners of the lower base 10, there are guide bars 11 extending upward.

  The upper base 20 is connected so as to face the lower base 10 via the guide bar 11. Moreover, the upper base 20 supports the upper mold | type support part 21 which has an arc-shaped convex curved surface on the lower side. The upper die support portion 21 supports the upper die holding portion 24 via a bearing 22 so as to be swingable. The upper mold holding unit 24 holds the upper mold 30 on the lower side thereof. The upper mold 30 and the upper mold holding part 24 swing as the drive gear 23 rotates. The drive gear 23 is connected to a motor (not shown) and is supplied with a driving force to rotate.

  The upper mold 30 is a mold having an arc-shaped convex curved surface with a radius R as a processed surface. The upper mold 30 is made of, for example, a rubber material or a metal material. In the upper mold 30, the arcuate center O <b> 3 having a radius R is located higher than the drive gear 23. When the upper mold 30 is swung, the convex curved surface of the upper mold 30 moves along a circumference C3 in a circle having a radius R and a center O3.

  The elevating base 40 is disposed between the lower base 10 and the upper base 20, and is attached along the guide bar 11 so as to be elevable. A lower mold support portion 41 having an arcuate convex curved surface is installed on the upper side of the elevating base 40. The lower mold support part 41 supports the lower mold holding part 44 via a bearing 42 so as to be swingable. The lower mold holding unit 44 holds the lower mold 50 on the upper side thereof. The lower mold holding portion 44 includes a rack gear 49 (see FIG. 6) on the lower side thereof, and swings when the rotational force of the drive gear 43 is transmitted from the rack gear 49. The driving gear 43 is connected to a motor (not shown) and is supplied with driving force.

  The elevating base 40 moves up and down as the ball screw 45 rotates. The ball screw 45 is given a rotational force from a motor 48 via a belt 46 and a speed reducer 47. The belt 46 is attached to the vicinity of the lower end of the ball screw 45 and the shaft of the speed reducer 47. The speed reducer 47 and the motor 48 are disposed on the side of the lower base 10, for example.

  The lower mold 50 is a mold having an arc-shaped convex curved surface with a radius R as a machining surface. The lower mold 50 is made of, for example, a rubber material or a metal material. In the lower mold 50, the arcuate center O <b> 5 having a radius R is located at a position lower than the drive gear 43. The upper mold 30 and the lower mold 50 are arranged to face each other. When the lower mold 50 is swung, the convex curved surface of the lower mold 50 moves along a circumference C5 in a circle having a radius R and a center O5.

Manufacturing method 1.
Next, an example of a processed product obtained using the manufacturing method 1 will be described with reference to FIGS. An example of this processed product is a part of MEGA (Membrane Electrode & Gas Diffusion Layer Assembly). FIG. 3 is a perspective view of an example of a processed product obtained by using the swing press apparatus according to the first embodiment. FIG. 4 is a diagram illustrating a main part of an example of a processed product. FIG. 5 is a diagram illustrating an example of a main part of a processed product after cutting.

  As shown in FIG. 3, the strip electrode P includes a plurality of single-wafer diffusion layers P1 and a strip electrode body P2. The strip electrode P is a processed product obtained using the manufacturing method 1. The thickness of the strip electrode P is, for example, 0.1 mm or less. The diffusion layer P1 is arranged side by side in the longitudinal direction on one side or both sides of the electrode body P2. As shown in FIG. 4, the electrode body P2 includes a catalyst layer P21 and an electrolyte membrane P22 having the catalyst layer P21 on one side or both sides. The catalyst layer P21 is formed by applying a powder forming a catalyst to one or both surfaces of the electrolyte membrane P22. Further, when the space between the diffusion layers P1 is cut, a large number of single-wafer electrodes can be obtained from one strip-like electrode P. When the obtained single-wafer electrodes are stacked, an electrode of a fuel cell is formed.

  As shown in FIG. 4, the strip electrode P has an overlapping portion W5 (described later) that receives two swing presses in an overlapping manner between the diffusion layers P1. The overlapping portion W5 is compressed and thinner than other portions of the electrode body P2. Further, the overlapping portion W5 is formed by receiving two swing presses in a state where the powder forming the catalyst layer P21 is applied to the electrode body P2. Therefore, in the overlapping part W5, the powder itself forming the catalyst layer P21 is hardened. By the way, the strip electrode P is cut by shearing using the cutting blades C1 and C2. Then, as shown in FIG. 5, cut surfaces P23 and P24 are formed. Here, the cut surfaces P23 and P24 have neither burrs nor returns, and are smoother than the cut surfaces P73 and P74 shown in FIG. In the overlapping portion W5, since the powder itself forming the catalyst layer P21 is hardened, it is considered that burrs and returns are unlikely to occur on the cut surfaces P23 and P24.

  Next, the manufacturing method 1 using the swing press apparatus concerning Embodiment 1 is demonstrated using FIGS. 6 to 12 are schematic views showing a swing press method. 6 to 12, in order to make the drawings easy to see, the configuration of the upper mold 30 and the like and the hatching are appropriately omitted.

  As shown in FIG. 6, first, before swinging the lower mold 50, the lower mold 50 is returned to the swing start angle (swing return step S1). More specifically, it is confirmed that the lower mold 50 is positioned below the workpiece W, and the lower mold 50 is swung in the direction opposite to the traveling direction D1 of the workpiece W and returned to the start angle. Note that the upper die 30 (not shown) is disposed on the upper side of the workpiece W and is returned to the swing start angle in the same manner as the lower die 50. Moreover, the workpiece | work W will be processed into the strip | belt-shaped electrode P as a press work product, after passing through a swing press. The workpiece W is arranged substantially horizontally so as to be positioned at a predetermined conveyance height H2. The bottom surface of the lower mold support part 41 is disposed so as to be positioned at the reference height H0. The reference height H0 is lower than the transport height H2. If the lower mold 50 is located at the swing start angle at the start of the swing return step S1, this step may be omitted.

  Next, as shown in FIG. 7, the lower die 50 is raised so as to be positioned at the height at the start of the swing (lower die raising step S2). Specifically, the lower mold 50 is raised until the bottom surface of the lower mold support portion 41 is positioned at the lift reference height H1 higher than the reference height H0. Then, the upper mold 30 and the lower mold 50 pressurize by sandwiching the workpiece W therebetween.

  Next, as shown in FIGS. 8 and 9, the upper die 30 and the lower die 50 are swung to press the workpiece W (swing press step S3). Specifically, the upper mold 30 and the lower mold 50 are swung in the traveling direction D1 of the work W while the work W is being pressed by the upper mold 30 and the lower mold 50.

  Next, as shown in FIG. 10, the lower mold 50 is lowered to release the pressure on the workpiece W (pressure release step S4). Here, a predetermined range of the workpiece W is processed by a swing press. After the swing return step S1 to the pressure release step S4 described above, one swing press is completed.

  Next, in the second and subsequent swing presses, the swing press is performed so as to overlap a predetermined range of the workpiece W processed by the swing press (overlapping press step S5). Here, as shown in FIG. 11, at the end of the swing press step S3, a place where pressure is applied from the upper mold 30 and the lower mold 50 is defined as a press end end W3. Further, as shown in FIG. 12, a place where pressure is applied from the upper mold 30 and the lower mold 50 at the start of the swing press step S3 is defined as a press start end W4. In the second swing press, the workpiece W is positioned so that the first press end portion W3 and the second press start end portion W4 overlap, and the same as the swing return step S1 to the pressure release step S4. Repeat step. Then, the first press end portion W3 and the second press start end portion W4 overlap to form an overlap portion W5. It is preferable that the length of the overlapping portion W5 is 2 mm or more. Furthermore, the strip electrode P can be manufactured from the workpiece W by repeating the overlapping press step S5.

  As mentioned above, according to the swing press apparatus concerning Embodiment 1, even if it cut | disconnects, the press work goods which have a location which cannot produce a burr | flash and a return easily are obtained.

  Moreover, according to the swing press apparatus concerning Embodiment 1, compared with a roll type | mold, a press work can be performed using an upper type | mold and a lower type | mold with small size. Therefore, the upper mold and the lower mold have a smaller heat capacity than the roll mold, and can be heated with less energy. The swing press apparatus according to the first embodiment can be quickly started by heating to a desired temperature in a short time. Further, in the roll type, the temperature difference between the parts is small and uniform.

  By the way, there is a method in which the workpiece W is sandwiched between two roll dies and pressed. When continuous pressing is performed using such an apparatus, the compressive stress locally increases in the workpiece W, and wrinkles may occur in the strip electrode P. Compared with such an apparatus, the swing press apparatus according to the first embodiment releases the compressive stress generated in the strip electrode P and suppresses the generation of wrinkles.

Embodiment 2. FIG.
Hereinafter, the swing press apparatus according to the second embodiment will be described with reference to FIGS. 13 and 14. 13 and 14 are perspective views of main parts of the swing press apparatus according to the second embodiment. Unlike the swing press apparatus according to the first embodiment, the swing press apparatus according to the second embodiment includes a configuration for cutting a workpiece. Here, description of the common configuration is omitted, and another different configuration will be described.

  As shown in FIGS. 13 and 14, the swing press device 200 includes an upper cutting blade 31, an upper positioning block 34, a lower cutting blade 51, and a lower positioning block 54. In the swing press apparatus 200, the side where the workpiece W is inserted between the upper die 30 and the lower die 50 is the front side, and the side where the pressed workpiece W is fed from between the upper die 30 and the lower die 50 is the rear side. It was.

  The upper mold 30 includes a front end portion 302 positioned on the front side of the arc-shaped convex curved surface and a rear end portion 301 positioned on the rear side of the arc-shaped convex curved surface. The front end portion 302 and the rear end portion 301 are step portions that are one step lower than the arcuate convex curved surface.

  The upper cutting blade 31 is installed at the rear end portion 301 via a guide 32 (see FIG. 18) and a spring 33. The spring 33 expands and contracts along the guide 32, and the upper cutting blade 31 is urged downward by the spring 33. The upper cutting blade 31 has a push-down block receiving part 310 that protrudes to the side of the upper mold 30.

  The push-down bar support plate 38 is installed so as to intersect perpendicularly with the axis of the drive gear 23. The push-down bar support plate 38 has two push-down bar support portions 37 at the upper end and the lower end of the end surface thereof. The push-down bar 35 is supported by two push-down bar support portions 37 so as to be slidable substantially along a vertical line while leaving a predetermined distance A from the drive gear 23 in the traveling direction D1 of the workpiece W. The push-down bar 35 has a push-down block 36 at the lower end thereof. The push-down block 36 is a block body extending in the direction opposite to the traveling direction D1 of the workpiece W. The push-down bar 35 can be lowered by being pushed down by an actuator (not shown) at its upper end. Then, the push-down block 36 presses the push-down block receiving portion 310, and the upper cutting blade 31 moves downward.

  The lower cutting blade 51 is installed at the rear end portion 501 of the lower mold 50 via a guide 52 (see FIG. 18) and a spring 53. The spring 53 extends and contracts along the guide 52, and the lower cutting blade 51 is biased upward by the spring 53.

  The upper positioning block 34 is installed in the upper mold holding unit 24 or the upper mold 30, for example, in the vicinity of the rear end portion 301 of the upper mold 30. When the upper mold 30 and the lower mold 50 are swung, the upper positioning block 34 may be installed so that the upper positioning block 34 and the lower positioning block 54 come into contact with each other at the cutting position. The upper positioning block 34 has a chamfered corner 341 (see FIG. 17) at the tip. The chamfered corner portion 341 has an angle α, and is chamfered to have a curvature with a radius R1. The angle α is preferably 80 ° to 100 °, and more preferably 85 ° to 94 °. The radius R1 is preferably 1/200 to 1/50 of the radius R (see FIG. 2) of the convex curved surface of the upper mold 30, and more preferably 1/120 to 1/80 of the radius R.

  The lower positioning block 54 is installed on both sides of the lower mold holding part 44 or the lower mold 50, for example, the rear end part 501 of the lower mold 50 or the vicinity thereof. Note that when the upper mold 30 and the lower mold 50 are swung, the lower positioning block 54 may be installed so that the upper positioning block 34 and the lower positioning block 54 come into contact with each other at the cutting position. The lower positioning block 54 has a recess 541 (see FIG. 18) at the tip thereof. The concave portion 541 has a concave angle that follows the chamfered corner portion 341. The angle of the concave angle is preferably 360-α [°].

Manufacturing method 2.
Next, the manufacturing method 2 using the swing press apparatus concerning Embodiment 2 is demonstrated using FIGS. 15-22. 15 to 22 are schematic views showing a swing press method.
The manufacturing method 2 differs from the manufacturing method 1 according to the first embodiment in that it includes a step for cutting a workpiece. In FIGS. 15, 16, and 21, drawing of the drive gear 43 and the like is omitted as appropriate for easy viewing of the drawings.

  First, as shown in FIG. 15, similarly to the manufacturing method 1, prior to swinging the lower mold 50, the lower mold 50 is returned to the swing start angle (swing return step S <b> 21).

  Next, as shown in FIG. 16, similarly to the manufacturing method 1, the lower die 50 is raised so as to be positioned at the height at the start of the swing (lower die raising step S <b> 22). Here, as shown in FIG. 17, the upper positioning block 34 and the lower positioning block 54 are abutted and contacted. The upper mold 30 and the lower mold 50 are positioned relative to each other more accurately. Here, for example, the clearance between the upper mold 30 and the lower mold 50 can be adjusted to 10 μm or less. Further, since the chamfered corner portion 341 is rounded, the upper positioning block 34 and the lower positioning block 54 ensure mechanical strength, suppress deformation or damage due to contact, and perform stable positioning. be able to.

  Next, as shown in FIG. 18, the push-down bar 35 (see FIG. 16) is lowered, and the upper cutting blade 31 and the lower cutting are held while the work W is sandwiched between the upper cutting blade 31 and the lower cutting blade 51. The blade 51 is lowered (cutting step S23). Then, as shown in FIG. 19, the upper cutting blade 31 and the lower cutting blade 51 apply a shear stress to the workpiece W to cut the workpiece W. Furthermore, as shown in FIG. 20, the upper cutting blade 31 and the lower cutting blade 51 are raised by the urging force from the spring 53 and returned to their original positions.

  Next, as shown in FIG. 21, the upper mold 30 and the lower mold 50 are swung to press the workpiece W (swing press step S24). Specifically, the workpiece W is swung in the traveling direction D <b> 1 of the workpiece W while being pressed by the upper die 30 and the lower die 50.

  Referring to FIG. 22 in conjunction with FIG. 21, the upper positioning block 34 and the lower positioning block 54 swing to follow the upper mold 30 and the lower mold 50, respectively. The upper positioning block 34 and the lower positioning block 54 swing without interfering with each other. Here, as shown in FIG. 16, the upper positioning block 34 and the lower positioning block 54 are arranged at a predetermined distance A from the center O4. In the upper positioning block 34 and the lower positioning block 54, the chamfered corner portion 341 is rounded, and the concave portion 541 has a concave angle that follows the chamfered corner portion 341. Thereby, interference with the upper positioning block 34 and the lower positioning block 54 is suppressed.

  Next, similarly to the manufacturing method 1, the lower mold 50 is lowered to release the pressure on the workpiece W (pressure release step S25). Here, a predetermined range of the workpiece W is processed by a swing press. After the swing return step S21 to the pressure release step S25, one swing press is completed.

  Next, as in the manufacturing method 1, in the second and subsequent swing presses, the swing press is performed so as to overlap a predetermined range of the workpiece W processed by the swing press (overlapping press step S26).

  As mentioned above, according to the swing press apparatus concerning Embodiment 2, it can cut | disconnect, performing a swing press process.

  In the swing press apparatus according to the second embodiment, the upper cutting blade 31 and the lower cutting blade 51 are installed on the rear end portion 501 of the upper mold 30 and the rear end portion 501 of the lower mold 50, respectively. You may install the upper side cutting blade 31 and the lower side cutting blade 51 in the front end part 302 of 30 and the front end part 502 of the lower mold | type 50, respectively.

  Moreover, in the swing press apparatus according to the second embodiment, a transport unit for performing intermittent transport may be installed before and after the swing press apparatus as necessary. Examples of such a conveying unit include a pair of conveying rollers disposed on the upper side and the lower side of the workpiece. Moreover, you may provide the heating means which heats an upper mold | type and a lower mold | type. Moreover, although the lower mold | type was raised / lowered, you may raise / lower an upper mold | type and you may raise / lower both an upper mold | type and a lower mold | type. Further, either one of the upper die processing surface and the lower die processing surface may be a flat surface.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

100, 200 Swing press device 30 Upper die 31 Upper cutting blade 34 Upper positioning block 301 Rear end portion 302 Front end portion 50 Lower die 51 Lower cutting blade 54 Lower positioning block 501 Rear end portion 502 Front end portion W Workpiece

Claims (1)

A swing press device that swings an upper die and a lower die to press a workpiece,
The upper side cutting blade,
A lower cutting blade,
An upper contact member provided in the upper mold;
A lower abutting member provided in the lower mold,
The upper cutting blade is installed at the front end of the upper mold and the lower cutting blade is installed at the front end of the lower mold, or the upper cutting blade is installed at the rear end of the upper mold and the lower side A cutting blade is installed at the rear end of the lower mold,
The upper contact member and the lower contact member are a swing press device that contacts each other at a cutting position when swinging the upper mold and the lower mold.

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