JP5316858B2 - Molded sheet punching die - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately and quickly determine the installing position of a punching blade die for a resin molded sheet. <P>SOLUTION: The punching blade die device for the molded sheet includes the punching blade die 7 disposed on a base plate 1 and freely oscillatable in the horizontal direction through a pivot shaft 11, a guide member 16 disposed on the base plate 1 and freely oscillatable in the vertical direction through a biasing member 20, and a pressing plate 30 having an insertion hole 33 for the guide member 16 disposed on the base plate 1. A resin molded article is punched out by pressing the pressing plate 30 to the punching blade die 7 from above. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin molded product punching apparatus in which a food tray, a product storage package or the like is molded by vacuum molding or pneumatic molding, and more specifically, a cutting blade having a plurality of molded bodies formed on a resin molded sheet mounted on a substrate. The present invention relates to a punching die device configured to be punched accurately and in one process by a die.

  Conventionally, resin molded products such as food trays and product storage packages are formed by punching a resin molded body formed by vacuum molding or pneumatic molding on a resin raw sheet into a desired size and shape by a punching device in a separate process. I use it.

  In the case of punching the package molded body to a desired size by a punching device, it is necessary to punch after making the arrangement position dimension of each molded body molded on the raw fabric sheet and the installation positional relationship of the punching blade mold exactly coincide. The reason for this is that, for example, if there is a deviation or deformation of the punching position in the width dimension of the molded product collar that is a food tray, the molded product is accurately set in the installation frame when setting it in a dedicated food stuffing machine. The dedicated machine line stops abnormally, and even in the process of closing the molded body and adhering and sealing the periphery of the heel part, a uniform adhesion area cannot be secured, thereby causing internal food leakage or internal leakage due to poor airtightness. This is because it can cause many problems such as causing food to rot.

  For this reason, conventionally, when installing the blade type block body embedded with the blade as the above-mentioned countermeasure on the base, in order to accurately match the arrangement and positional relationship of the individual molded bodies formed on the resin molded sheet, the blade The horizontal installation position of the mold block main body is determined with repeated fine adjustments, and then the process proceeds to the punching process.

  For example, in Japanese Patent Laid-Open No. 10-113897 (Patent Document 1), a replacement block and a positioning block are provided on a base plate on which the extracted blade type block main body is mounted, and this is fixed by a fixing bolt. After confirming the installation position by repeatedly making temporary fixing adjustments, the bolts are tightened and fixed.

  Further, in Japanese Patent No. 3613481 (Patent Document 2), the bolt mounting hole of the punching unit in which the punching blade is embedded is formed larger than the diameter of the bolt projecting on the mounting plate on the mounting side, and the mounting position of the punching unit is set. Further, in Japanese Patent Application Laid-Open No. 2004-330388 (Patent Document 3), the bolt insertion hole of the block body in which the extraction blade is embedded is set to be larger in diameter than the bolt shaft diameter, and this is used as a support plate. It is configured to fix the installation position while repeating temporary tightening and position adjustment at the time of mounting.

JP-A-10-113897 (FIG. 1) Japanese Patent No. 3613481 (FIG. 2) Japanese Patent Laying-Open No. 2004-330388 (FIG. 3)

  In any of the above-described extraction blade type devices, the fixing bolts are temporarily tightened in advance as a means for accurately matching the arrangement dimensions of the respective molded bodies of the resin molded sheet and the installation position of the extraction blade block body. Since it is a structure that repeatedly finely adjusts the installation position in the direction and tightens and fixes after confirmation, the work to determine the positional relationship between the array dimensions of each molded body of the molded sheet and the extraction blade block body is troublesome There is a problem.

  In addition, since the insertion hole is formed so as to be finely adjustable with respect to the diameter of the fixing bolt of the extraction blade block body, the tightening gradually loosens during repeated punching operations, and the installation position of the extraction blade die There are many problems with its structure and workability, such as a large amount of defects in the punched molded body due to lateral displacement and the need for special tools for installation and replacement work of the punched-blade block body. Is the actual situation.

  Therefore, the present invention is a fine adjustment at the time of setup for matching the positional relationship between the installation position of the extraction blade mold and the respective molded bodies formed on the resin molded sheet, which has been implemented in the above-mentioned prior art when setting the extraction blade mold. A resin-molded sheet blanking die device that can immediately determine the installation position of the blanking die simply by covering the molded part of the resin molded sheet with the guide member on the blanking die. The purpose is to do.

To accomplish the above object, the vertical by the urging member provided on the pivot which is provided at a substantially central portion of the movable blades type and該抜cutting die in the horizontal direction on the blades type on a substrate provided with a movable guide member in a direction, the resin by blades provided on the blades form by pressing the pressing plate is arranged a pressing plate having an insertion hole of the guide member on said substrate from above configured to punch out the molded article, further, the recessed dents stepped hole composed of the lower surface opening of the recessed portion in the seat plate of the blades base substrate, Yu the bore recess with stepped A fitting plate is disposed, and the loose fitting plate and the guide member are configured to move integrally in a horizontal direction together with a pivot passing through a substantially central portion of the guide member, and provided on the lower surface of the guide member. the guide member crowded Mari tip fitting always a biasing member provided on the blades form the recess Characterized by being configured to bias movably relative to a straight direction (claim 1).

  In addition, a plurality of the cutting blade dies can be arranged on the substrate 1 at intervals, and a seat plate 3 can be detachably fixed to the seating surface 13 of the substrate (Claim 2).

According to the present invention, the vertical direction by the urging member 20 provided on the blades form on the pivot 11 is formed at almost the center of the movable blades type 7 and該抜cutting die in the horizontal direction on the substrate 1 since the structure provided with the movable guide member 16 moves in an accurate and immediate installation position of blades type 7 with one-touch operation of simply tegmental on the guide member 16 a shaped body 32 parts of the resin molded sheet 31 In addition, after the punching, the molded body 32 is detached by hand operation because the molded body 32 detaches so as to jump up from the guide member 16 by the reaction of biasing the guide member 16 upward by the biasing member. The operation of extracting from the guide member is not necessary, and the operability is improved because the quick and continuous punching operation can be continued.

Further, the seat plate 3 of the substrate 1 is provided with a stepped recess hole 14 formed by a recessed portion of an opening on the lower surface of the extraction blade base 8, and a loose fitting plate 15 is disposed in the stepped recess hole. and, by the said guide member 16 and the free Hamaita configured to move integrally in the horizontal direction together with the pivot 11 which passes through the substantially central portion of the guide member, moves with respect to the horizontal direction of the該抜cutting die The amount is also limited to a desired size, and the loose fitting plate 15, the extraction blade die 7, and the guide member 16 move together, so that the finished size of the punched molded body 32 is also accurate.

Further, the guide member 16, since the biasing member 20 provided on the blades type 7 was configured to bias movably with respect to the vertical direction, it no said guide member is shifted largely laterally, In addition, the molded body punched out for urging the guide member evenly upward is also good (Claim 1).

  In addition, a plurality of the extraction blade molds are arranged on the substrate 1 at intervals, and the seat plate 3 is detachably fixed to the seating surface 13 of the substrate, so that a step for arranging the loose fitting plate is provided. Maintenance such as processing of the recessed hole 14 and replacement accompanying wear of the stepped recessed hole can be made easily and inexpensively.

A guide member that is movable in the vertical direction by a punching die 7 that is movable in the horizontal direction on the substrate 1 and a biasing member 20 that is provided on the pivot 11 provided on the substantially central portion of the punching die on the punching die. 16 and provided with a, the resin molded body 30 by blades 9 provided blades type by on the substrate to press the pressing plate 30 is arranged pressing plate from above having an insertion hole 33 of the guide member Therefore, the installation of the punching blade type can be punched accurately and quickly by a one-touch operation.

FIG. 1 shows an overall view of a punching blade type apparatus of the present invention, and a plurality of recessed holes 2 corresponding to the number of arrangements of molded bodies 32 of resin molded sheets 31 to be described later are formed in a substantially square substrate 1 in plan view. Adjacent and placed.

  2, a seat plate 3 is detachably fixed by screws 4 to form a bottom wall 5 of the recessed hole as shown in FIG. Is deferred.

  The punching blade mold 7 is composed of a punching blade base 8 and a punching blade 9 fitted so as to surround the base, and a pivot 11 is inserted into a through-hole 10 drilled in a substantially central portion thereof. And the tip of the screw protrudes upward.

On the other hand, the seat surface 13 of the seat plate 3 below the substrate 1 is provided with a substantially circular stepped recess hole 14 formed by a recess portion of the opening on the lower surface of the blade base 8 , and here, than the recess hole. A slightly small diameter stepped disk-like loosely-fitting plate 15 is disposed, and is pivotally supported integrally with the pivot shaft 11 and the extraction blade base 8 in such a state that the tightening is held so as to be horizontally movable .

Further, as shown in FIG. 3, the loose-fitting plate 15 has a stepped convex portion 15a on one side, and the outer diameter of the large diameter portion 15b and the small diameter portion 15c is the large diameter hole 14a of the stepped concave hole 14 and The diameter of the stepped convex portion is set slightly higher than the height of the stepped portion 14b (small diameter portion) of the stepped recess hole and is loosely fitted. Thus, the punching die 7 can be finely moved in the vertical direction by the clearance generated by the difference between the height of the stepped protrusion and the height of the stepped recess hole, and is also loosely fitted in the horizontal direction. Horizontal movement is possible by the difference in diameter between the diameter of the plate 15 and the stepped recess hole 14.

On the other hand, a guide member 16 formed corresponding to a molded object to be punched is pivotally supported above the pivot 11 so as to pass through a through-hole 17 drilled in a substantially central portion thereof so as to be movable in the vertical direction. The upper end is screwed and locked by a locking nut 18.

At the same time, the guide member is set so as to be constantly urged uniformly upward by a plurality of urging members 20 embedded in the lower extraction blade base 8, and the tip of the urging member is the lower surface of the guide member. fixed were the Mari included blades type 7 fitted recesses 22 parts constantly in abutment plate 21 and the guide member 16 is moved in the vertical direction between the screwed-locking position of the locking nut 18 while moving integrally with the It is like that.

In other words, the guide member 16 is slidable in the vertical direction in the drawing (vertical direction) on the pivot 11 in response to pressing and releasing from the upper side by the pressing plate 30 in a resin molding sheet punching process described later. Yes.

  On the other hand, the urging member 20 has a structure in which a piston pin 26 inserted in the outer cylinder 25 is slidable in the axial direction by the urging of a spring 27 as shown in FIG. A plurality (preferably four places) are arranged in the vicinity of the peripheral edge of the extraction blade base 8, and the guide member 16 is urged upward with an equal force.

  The urging member 20 is not limited to the piston-shaped member described above, and may be, for example, a coil spring or a bamboo spring (not shown). The structure is not particularly limited as long as the structure is equally biased.

  Further, in the present embodiment, the seat plate 3 provided at the bottom of the substrate 1 is a separate member for facilitating the processing of the stepped recess hole 14 and the substrate recess hole 2. Needless to say, the contact plate 21 fixed to the lower surface of the guide member 16 can be renewed as a separate member to prevent wear caused by repeated contact with the biasing member 20. Therefore, this is not the case when the guide member itself is formed of a material with high wear resistance.

  On the other hand, reference numeral 30 denotes a pressing plate (FIG. 1), which is used for punching the molded body 32 by pressing the resin molded sheet 31 mounted on the punching die 7 and mounted on the punching device 7 (not shown) from above. Accordingly, the plurality of insertion holes 33 provided corresponding to the number of the extraction blade molds of the substrate 1 have dimensions that allow the guide member 16 on the extraction blade mold 7 and the molded body 32 covered by the guide member 16 to be enclosed and inserted. The abutting surface 34 of the lower surface abuts on and presses against the punching blade 9 so that the molded body 32 on the resin molded sheet 31 is punched out.

  Reference numeral 35 denotes a synthetic resin contact plate which is detachably provided on the pressing plate 30 and is configured so that the corresponding contact surface can be partially updated when it is worn with repeated pressing operations on the extraction blade mold. Thus, the cost of the mold can be reduced, and it is only necessary to selectively perform the integral molding or the other pair according to the size and the number of the molded body in production.

  Next, the operation of the present invention will be described. First, the substrate 1 is placed on a table of a punching machine (not shown), and the guide member 16 on the punching die 7 placed on the substrate is covered with a resin molded sheet 31 separately formed by vacuum forming or pneumatic forming. Put.

At this time, when the molded body 32 formed on the molded sheet is fitted so that the guide member 16 serves as a guide and covers the respective guide members, the guide member is integrally pivotally supported by the pivot 11. The blade mold 7 is also moved in the horizontal direction corresponding to the array dimensions of the respective molded bodies, and the installation position thereof is accurately determined.

Next, when the pressing plate 30 mounted on the pressing device descends and presses the surface of the extraction blade 9, the guide member 16 also moves along the pivot 11 and descends. Then, the urging member 20 that urges the guide member from below is simultaneously pressed downward, and the piston pin 26 also hangs against the tension of the internal spring 27.

  And when the said press plate and the extraction blade 9 press moderately and the molded object 32 is punched out from the resin molding sheet | seat, the press plate 30 raises and the press to the extraction blade is cancelled | released simultaneously. The guide member 16 jumps up vigorously by the urging. At the same time, the punched molded body 32 jumps up by this reaction and separates from the guide member.

At this time, since the movement range of the guide member 16 is limited by the locking nut 18 screwed on the upper side of the pivot 11, the guide member 16 does not detach from the pivot 11. it can.

  As described above, according to the present invention, the mounting position of the molded body 32 of the resin molded sheet is determined by the guide member 16 and the installation position of the punching die 7 is accurately and immediately determined. Since it is easy to take out, workability is improved more than before. Furthermore, conventionally, setup work such as temporary fixing and trial driving for determining the installation position of the extraction blade type is not required, and its action and effect are enormous.

  The substrate 1 and the pressing plate 30 described in the present embodiment are preferably formed of wooden plywood in consideration of workability and cost, but may be manufactured of a molding resin and are within the scope of the present invention. It goes without saying that various modifications are possible.

It is a whole perspective view of the present invention extraction blade type device. It is a cross section of an extraction blade type | mold apparatus. It is an enlarged view of a loose-fitting board mounting part. It is an expanded view of the extraction blade type | mold apparatus. It is sectional drawing of a biasing member.

DESCRIPTION OF SYMBOLS 1 Board | substrate 2 Recessed hole 3 Seat plate 4 Screw screw 5 Bottom wall 6 Cavity 7 Extraction blade type 8 Extraction blade base 9 Extraction blade 10 Through-hole 11 Axis 12 Screw screw 13 Seat surface (seat plate)
14 Stepped recessed hole 15 Freely fitting plate 16 Guide member 17 Through hole 18 Locking nut 20 Biasing member 21 Abutting plate 22 Recess 25 Outer cylinder 26 Piston pin 27 Spring 30 Press plate 31 Resin molded sheet 32 Molded body 33 Insertion hole 34 Contact surface 35 Contact plate

Claims (2)

Provided with a movable guide member in the vertical direction by the biasing member provided on the horizontally movable such blades type and該抜cutting die blades type on the pivot provided at a substantially central portion of the substrate In addition, a pressing plate having an insertion hole for the guide member is disposed on the substrate, and the resin molded body is punched out by a punching blade provided in a punching blade mold by pressing the pressing plate from above, and The base plate of the substrate is provided with a stepped recess hole formed by a recessed portion of an opening on the lower surface of the extraction blade base , and a loose fitting plate is disposed in the stepped recess hole, And the guide member are configured to move integrally in the horizontal direction together with a pivot passing through a substantially central portion of the guide member, and an urging force provided on the extraction blade mold in a recess provided on the lower surface of the guide member It fits the tip of the member is always urges movably to the guide member with respect to the vertical direction Blades type molded sheet, characterized in that the sea urchin configuration. 2. The punching die for a molded sheet according to claim 1, wherein a plurality of said punching blade dies are arranged on the substrate at intervals, and a seat plate is detachably fixed to the seating surface of the substrate. .

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