JP4895514B2 - Press machine - Google Patents

Description

  The present invention relates to a press apparatus.

  2. Description of the Related Art Conventionally, a multi-stage press apparatus has been used in which a plurality of workpieces (resin film or the like) products are arranged in a vertical direction via an intermediate press plate and a plurality of products are pressed by a single press.

  A conventional example of such a loader is disclosed in Patent Document 1. In the configuration disclosed in Patent Document 1, a product (workpiece) is placed on a feed plate. The feed plate and the product thereon are horizontally moved by means such as a loader and fed into the press apparatus.

Also, rollers or a low friction table (a plate-like member made of Teflon (registered trademark) resin) is provided at both ends in the width direction (the direction that is horizontal and perpendicular to the feeding direction by the loader) in the press device. Yes. This roller or low friction table supports the feed plate fed from the loader on it so that the feed plate or product does not come into contact with the hot plate of the pressing device.
JP-A-2-137700

  In the configuration as disclosed in Patent Document 1, in order to support the feed plate from below, it is necessary to provide at least three rollers or low friction tables for each feed plate. In particular, when molding a heavy product, it is necessary to provide more rollers or low friction tables (eight locations in the configuration of Patent Document 1). For this reason, in the conventional configuration, when the feed plate is horizontally moved and placed on the roller or the low friction table, the feed plate hits the roller or the low friction table a plurality of times. For this reason, the impact due to the roller or the low friction member hitting the feed plate is applied to the feed plate many times, and this impact causes the product on the feed plate to move against the feed plate (that is, against the hot plate of the press device). This could cause misalignment and hinder product molding.

  In order to solve the above problems, the present invention is a press device for pressing a product, and the product can be supported by a support mechanism when the product is introduced therein, and the product is not displaced with respect to the support mechanism. An object of the present invention is to provide a pressing device that does not easily occur.

In order to achieve the above object, a press device of the present invention includes a support mechanism that supports a product so as to be movable in a horizontal direction between hot plates, and the support mechanism includes a pair of endless products on which the product is placed. A belt and a pulley to which the endless belt is passed so that each of the pair of endless belts can advance and retreat in the feed direction of the product.

  In the case of such a configuration, one endless belt and a pair of pulleys used in combination with the endless belt have a support function equivalent to at least two rollers in the conventional example. However, in this configuration, the two pulleys are connected to the endless belt, and a product (or a feed plate) rides on the belt, and the belt smoothly rotates and moves integrally with the product while moving through the belt. The rear pulley and the product come into contact with each other, and the impact caused by the contact between the rear pulley and the product is greatly reduced. Therefore, the impact on the product (or the feed plate) is reduced during product conveyance, and the product is less likely to be displaced with respect to the support mechanism (endless belt and pulley).

Further, a support member that supports the upper surface of the endless belt from below is disposed along the inner periphery of the endless belt , and the end of the support member upper surface on the upstream side in the feed direction is endless toward the upstream side in the feed direction with the structure that is formed away from the belt top, it is possible to lengthen the distance between a pair of pulleys corresponding to the endless belt of one, only the two pairs of pulleys corresponding thereto and a pair of endless belts The product (or feed plate) can be supported. This makes it possible to further reduce the number of occurrences of impact due to the contact between the product and the support mechanism, and to further prevent the product from being displaced relative to the support mechanism.

  Further, an endless chain may be used instead of the endless belt.

  Hereinafter, the configuration of a press apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a press device according to a first embodiment of the present invention. The press apparatus 100 according to this embodiment is a so-called multistage press apparatus that performs press molding of a resin molded product (product) between a plurality of sets of hot plates. Note that the product before shaping is transported by a loader (not shown) from the front side to the back side in FIG. Hereinafter, this direction is defined as the product feeding direction. In addition, a horizontal direction and a direction perpendicular to the feeding direction, that is, the left-right direction in FIG.

  The heat plate has an uppermost upper heat plate 121 and a plurality (three in FIG. 1) of intermediate heat plates 120 arranged vertically and parallel to each other below the upper heat plate 121.

  Each of the intermediate hot plates 120 can be translated in the vertical direction. The lowermost intermediate hot plate 120 is placed on the table surface plate 151. In addition, an upper hot plate 121 fixed to the bottom surface of the crown surface plate 152 is disposed on the upper side of the product P placed on the uppermost intermediate hot plate 120.

  The table surface plate 151 is driven in the vertical direction by a cylinder 160 that is hydraulically or pneumatically driven. In addition, each of the intermediate hot plates 120 is configured to move up and down as the table surface plate 151 moves up and down. Therefore, the product P and the metal carrier plate M on which the product P is placed are arranged between the hot plates, and the product P and the carrier plate M are sandwiched between the intermediate hot plate 120 and the upper hot plate 121 without any gap. By raising the table surface plate 151 and further raising the table surface plate 151 from this state, the product P is pressed between the hot plates.

  Each of the intermediate hot plates 120 has a support mechanism 124 for holding the product P and the carrier plate M between the intermediate hot plate 120 and the hot plate (the intermediate hot plate 120 or the upper hot plate 121) thereon. Is provided. In the present embodiment, one set is provided adjacent to the four corners of each intermediate hot plate 120, and the carrier plate M is supported at the four corners. Further, the support mechanisms 124 arranged in the vertical direction are configured to move up and down by the link mechanism 130 and the cylinder 170 while keeping a distance from each other.

  As shown in the figure, the link mechanism 130 includes support shafts 131 and 132 provided on the wall surfaces 111 and 112 at both ends in the width direction of the frame of the press device 100 so as to be vertically aligned with each other, and the support shaft 131, Arms 133 and 134 that can rotate on a plane perpendicular to the horizontal plane centering on 132 are provided. Support shafts 135 and 136 are provided at the distal ends of the arms 133 and 134, and the arm 137 is connected to the arms 133 and 134 via the support shafts 135 and 136. The distance between the support shafts 131 and 135 is equal to the distance between the support shafts 132 and 136, and any one of the wall surfaces 111 and 112 and the arms 133, 134, and 137 form a parallel four-shaped link structure. Since the wall surfaces 111 and 112 are both surfaces perpendicular to the horizontal plane, the arm 137 moves in the width direction while moving up and down while maintaining a vertical state. A cylinder 170 is provided below the support shaft 136, whereby the arm 134 swings and moves the arm 137 up and down.

  A support mechanism 124 is fixed to the arm 137, and the support mechanism 124 moves in the vertical direction and the width direction as the arm 137 moves. As shown in the figure, when the cylinder 170 lifts the arm 134 and is positioned upward (left side in the figure), the support mechanism 124 is close to the intermediate hot plate 120 in the horizontal direction, and its upper end is It is located above the upper surface of the corresponding intermediate hot plate 120. On the other hand, when the cylinder 170 lowers the arm 134 and is positioned below (right side in the figure), the support mechanism 124 is separated from the intermediate hot plate 120 in the horizontal direction, and the upper surface of the corresponding intermediate hot plate 120 is It is located on the lower side. Accordingly, the carrier plate M and the product P are inserted into the press apparatus 100 so that the carrier plate M is placed on the support mechanism 124 in a state where the cylinder 170 lifts the support mechanism 124, and then the cylinder 170 is driven. By lowering the support mechanism 124, the carrier plate M is placed on the intermediate hot plate 120 and the support mechanism 124 is detached from the carrier plate M.

  FIG. 2 is a cross-sectional view taken along the line AA of FIG. For simplification of the drawing, only the intermediate hot plate 120, the carrier plate M, the product P, and the support mechanism 124 are shown in this figure, and other elements are not shown.

  As shown in FIG. 2, the carrier plate M is supported by four sets of support mechanisms 124 at four locations. Each support mechanism is composed of a pair of pulleys 124b arranged in the feed direction (left and right direction in the figure) and an endless belt 124a stretched around the pair of pulleys 124b. The rotation shaft of each pulley is rotatably supported by a bearing mechanism (not shown) fixed to the arm 137 (FIG. 1). At least the outer periphery of the endless belt 124a is coated with a heat resistant resin such as Teflon (registered trademark) resin.

  FIG. 3 is a side view showing the intermediate hot plate 120, the carrier plate M, the product P, and the support mechanism 124 of the present embodiment, and particularly shows the procedure for arranging the carrier plate M and the product P on the support mechanism 124. Is. In this figure, the carrier plate M and the product P thereon are fed from the right to the left in the figure and placed on the support mechanism 124.

  FIG. 3A shows a state in which the leading end portion of the carrier plate M in the feeding direction is in contact with the support mechanism 124 on the front side (right side in the drawing). When the carrier plate M is further pushed to the left in the drawing, the pulley 124b rotates, and the endless belt 124a rotates counterclockwise so as to convey the carrier plate M in the feeding direction. As a result, once the carrier plate M comes into contact with the support mechanism 124, the carrier plate M is smoothly conveyed by the endless belt 124a, so that the carrier plate M receives an impact from the support mechanism 124 and the position of the product P is displaced. It never happens.

  When the carrier plate M comes into contact with the support mechanism 124 on the back side (left side in the figure) by the belt 124a, the state shown in FIG. When the carrier plate M is further pushed to the left in the drawing, the pulley 124b of the back support mechanism 124 rotates, and the endless belt 124a of the back support mechanism 124 is conveyed so as to transport the carrier plate M in the feed direction. Also rotates counterclockwise. As a result, once the carrier plate M contacts the back support mechanism 124, the carrier plate M is smoothly conveyed by the endless belt 124a of the back support mechanism 124, so that the carrier plate M is supported on the back side. The product P is not displaced due to an impact from the mechanism 124.

  When the carrier plate M is further pushed in, the carrier plate M is smoothly conveyed by the endless belt 124a of the support mechanism 124 on the front side and the back side, and is lowered by the support mechanism 124 on the front side and the back side as shown in FIG. It will be in the state supported from. From this state, as described above, the support mechanism 124 is lowered to place the carrier plate M and the product P thereon on the intermediate hot plate 120.

  As described above, according to the present embodiment, the product is smoothly transported by the support mechanism using the endless belt and placed on the support mechanism between the hot plates. The impact caused by contact with the carrier plate (or the carrier plate) is reduced as much as possible, and the displacement of the product that may be caused by this impact is prevented.

  In the first embodiment of the present invention described above, four sets of support mechanisms are used for one carrier plate. However, the present embodiment is not limited to the above configuration, and various modifications can be used. The second embodiment of the present invention described below shows an example of such a modification.

  FIG. 4 shows a top view (corresponding to the AA cross-sectional view of FIG. 1) of the press device 100 of the second embodiment of the present invention. The difference between the present embodiment and the first embodiment of the present invention is only the support mechanism that supports the carrier plate, and the other parts, that is, the configuration of the intermediate hot plate 120, the link mechanism 130, and the like are the first. Since it is the same structure as the thing of embodiment, detailed description is abbreviate | omitted.

  As shown in FIG. 4, in the second embodiment of the present invention, each carrier plate M is supported from below by a pair of support mechanisms 224. The support mechanism 224 in this embodiment includes a pair of pulleys 224b and an endless belt 224a that is stretched over the pulleys 224b, as in the first embodiment. However, unlike the first embodiment (see FIG. 2), the width in the feed direction is larger. The rotation shaft of each pulley is rotatably supported by a bearing mechanism (not shown) fixed to the arm 137 (FIG. 1). Note that at least the outer periphery of the endless belt 224a is coated with a heat-resistant resin such as Teflon (registered trademark) resin.

  FIG. 5 is a side view showing the intermediate hot plate 120, the carrier plate M, the product P, and the support mechanism 224 of the present embodiment, and particularly shows the procedure for arranging the carrier plate M and the product P on the support mechanism 224. Is. In this figure, the carrier plate M and the product P thereon are fed from right to left in the figure and placed on the support mechanism 224.

  As shown in FIG. 5, in the present embodiment, a support member 224c is disposed between the pair of pulleys 224b. The support member 224c is formed of a heat-resistant material such as Teflon (registered trademark) resin. The upper surface of the support member 224c is in contact with the inner periphery of the endless belt 224a, and the inner periphery of the endless belt 224a can slide with respect to the upper surface of the support member 224c. The upper surface of the support member 224c and the inner periphery of the endless belt are formed with low friction, and the endless belt 224a is smoothly driven on the support member 224c. The support member 224c is fixed to the arm 137 (FIG. 1) and can sufficiently support the weight of the carrier plate M and the product P.

  FIG. 5A shows a state in which the leading end of the carrier plate M in the feed direction is in contact with the support mechanism 124 on the front side (right side in the drawing). When the carrier plate M is further pushed to the left in the drawing, the pulley 224b rotates, and the endless belt 224a rotates counterclockwise so as to convey the carrier plate M in the feeding direction. As a result, once the carrier plate M comes into contact with the support mechanism 224, the carrier plate M is smoothly conveyed by the endless belt 224a, so that the carrier plate M receives an impact from the support mechanism 224 and the position of the product P is displaced. It never happens.

  When the carrier plate M is conveyed by the belt 224a, the carrier plate M and the product P thereon are supported from below by the support member 224c through the endless belt 224a as shown in FIG.

  Here, as shown in FIG. 5, the right end of the upper surface of the support member 224c in the drawing is an inclined surface that decreases toward the right. For this reason, when the carrier plate M is inserted into the press apparatus 200, even if the end of the carrier plate M and the endless belt 224a below the carrier plate M are slightly lowered due to the load of the product P, the carrier plate M and the support member 224c The carrier plate M is smoothly conveyed together with the endless belt 224a without the endless belt 242a below the hook.

  When the carrier plate M is further pushed in, the carrier plate M is smoothly conveyed by the endless belt 224a and is supported from below by the pulley 224b and the support member 224c of the support mechanism 224 as shown in FIG. From this state, as described above, the support mechanism 224 is lowered to place the carrier plate M and the product P thereon on the intermediate hot plate 120.

  As described above, according to the present embodiment, since a pair of support mechanisms may be provided for one carrier plate, the carrier plate M hits a component of the support mechanism 224 and the impact is transmitted to the carrier plate M and the product P. Only when the carrier plate M first comes into contact with the support mechanism 224, the impact on the product (or carrier plate) during product conveyance is mitigated, and the positional deviation of the product with respect to the support mechanism is the same as in the first embodiment of the present invention. Compared to it, it becomes harder to get up.

  In the first and second embodiments of the present invention, a heat-resistant endless belt is used, but an endless chain may be used instead.

It is a front view which shows the whole press apparatus by embodiment of this invention. It is AA sectional drawing of FIG. It is a side view of the intermediate | middle hot plate and the support mechanism of the 1st Embodiment of this invention. It is a top view of the press apparatus of the 2nd implementation of this invention. It is a side view of the intermediate | middle hot plate and the support mechanism of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Press apparatus 120 Intermediate | middle hot plate 121 Upper hot plate 124 Support mechanism 124a Endless belt 124b Pulley 130 Link mechanism 170 Cylinder 224 Support mechanism 224a Endless belt 224b Pulley 224c Support member

Claims (6)

At least two hot plates arranged vertically;
A hot plate driving means for pressing a product placed between the hot plates close to each other, and
A support mechanism for supporting the product movably in the horizontal direction between the hot plates;
A press device comprising:
The support mechanism is provided with a pair of endless belts on which the product is placed and the endless belt so that each of the pair of endless belts can rotate along the feeding direction of the product. A pulley, and a support member that supports an upper part on which the product is placed on the endless belt from below;
When the product is pushed between the hot plates, the endless belt is rotated by the product coming into contact with the endless belt, and the endless belt and the product move together,
The press apparatus according to claim 1, wherein an inclined surface is formed on an upper end of the support member on the upstream side in the feed direction of the product so as to be separated from the upper portion of the endless belt toward the upstream side in the feed direction.   The press device according to claim 1, wherein at least an outer peripheral surface of the endless belt is formed of a heat-resistant resin. At least two hot plates arranged vertically;
Hot plate driving means for pressing the product placed between the hot plates with the hot plates close to each other;
A support mechanism for supporting the product movably in the horizontal direction between the hot plates;
A press device comprising:
The support mechanism includes a pair of endless chains on which the product is placed, and a pulley to which the endless chain is passed so that each of the pair of endless chains can advance and retreat along the feed direction of the product And a support member for supporting an upper part on which the product is placed in the endless chain from below,
When the product is pushed between the hot plates, the endless chain rotates as the product comes into contact with the endless chain, and the endless chain and the product move together,
The support member upper surface, the ends of the feeding direction upstream side of the products, a press and wherein the inclined surface away from the endless chain top toward the該送Ri direction on the upstream side is formed.   The support mechanism has a first position where the product is placed on a hot plate on the lower side of the product, and a position where the product floats from the hot plate on the lower side of the product. The press apparatus according to any one of claims 1 to 3, wherein the press apparatus is movable between a second position for supporting the product.   The press apparatus according to any one of claims 1 to 4, wherein the product is supported on the support mechanism via a feed plate. The press device is a multi-stage press device having at least three hot plates,
The said hot plate drive means moves each hot plate so that the space | interval may become small, and presses the product inserted between each hot plate simultaneously, The Claims 1-5 characterized by the above-mentioned. The press apparatus in any one.

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