JP3207602U - Mold reversing device - Google Patents

Abstract

Disclosed is a mold reversing device provided with a shutter mechanism capable of shielding the outside of at least a lower half portion of a peripheral surface of a rotating body exposed to the outside. A rotating body 20 having a base structure 10, two mold mounting surfaces 21a and 21b and rotatably supported on the base structure 10, and the rotating body 20 can be driven to rotate. In the mold reversing device 1 having a rotation driving means and capable of reversing the mold M by 90 °, it is disposed at both ends of the base structure 10 and is exposed to the outside of the peripheral surface of the rotating body 20. A pair of shutter mechanisms 40 capable of shielding a part of the parts to be shielded are provided, and the shutter mechanisms 40 are arranged on a vertical guide part 41 provided at an end of the base structure 10 and can be moved up and down on the guide part 41. In addition, a shutter plate 42 having a predetermined vertical width, and a shutter plate raising / lowering means capable of switching the position between a shielding position where the shutter plate 42 is raised to shield the outside of the part and a non-shielding position are provided. [Selection] Figure 1

Description

  The present invention relates to a mold reversing device for reversing a mold by 90 ° in a state where the mold is placed and supported.

  Usually, when repairing a mold, it is necessary to invert the mold by 90 ° or 180 °. In Patent Document 1, a rotating structure having a base structure, two mold mounting surfaces with an opening angle of 90 ° and rotatably supported on the base structure, and the rotating body can be driven to rotate. There is disclosed a mold reversing device that has a rotation driving means and is capable of reversing a mold placed on one mold placing surface by 90 ° on the other mold placing surface.

  In this mold reversing device, the arcuate rolling surfaces of the rolling surface forming plates at both ends of the rotating body are supported by a plurality of idler rollers having a base structure. Further, since about 1/2 of the arcuate rolling surface of the rolling surface forming plate of the rotating body is exposed to the outside, an operator approaches or contacts the rolling surface and the idle roller. There is a risk of doing.

  Therefore, as shown in FIG. 4, the applicant of the present invention has two mold mounting surfaces 103 a having an opening angle of about 90 ° on a rotating body 102 rotatably supported by a base structure 101 of the mold reversing device 100. 103b, screen winding devices 104 are provided at both ends of the base structure 101, and the upper ends of the screens 105 drawn from the screen winding device 104 are connected to the end portions of the rotating body 102. A mold reversing apparatus in which a portion exposed to the outside of the peripheral surface of 102 is always covered with a screen 105 has been put into practical use.

Utility Model Registration No. 3001251

  In the mold reversing device of Patent Document 1, about 1/2 of the arcuate rolling surface of the rolling surface forming plate of the rotating body is exposed to the outside, and the rolling surface and the idle roller are exposed to the rolling surface. Since no safety measures are taken to prevent the worker from approaching or coming into contact, the worker approaches the rotating body and the hand is sandwiched between the rolling surface and the idle roller, There is a problem of injury to the finger.

  In the mold reversing device shown in FIG. 4, since the cloth screen has low rigidity and is easily bent, there is a problem that the screen is caught between the rolling surface and the idle roller, the screen is torn or dirty. .

  An object of the present invention is to provide a mold reversing device provided with a shutter mechanism capable of shielding at least the outer side of at least a lower half portion of a peripheral surface of a rotating body exposed to the outside.

  The mold reversing device according to claim 1 includes a base structure, a rotating body having two mold mounting surfaces with an opening angle of about 90 °, and rotatably supported on the base structure. A mold reversing device having a rotation driving means capable of rotating the rotating body and capable of reversing a mold placed on one mold placing surface by 90 ° on the other mold placing surface; A pair of shutter mechanisms that are disposed at both ends of the base structure and can shield the outside of at least the lower half of the portion of the peripheral surface of the rotating body that is exposed to the outside world, A vertical guide portion provided at an end of the base structure, a shutter plate disposed in the guide portion so as to be movable up and down, and having a predetermined vertical width; and raising the shutter plate to at least the lower half portion. A position switchable between a shielding position for shielding the outside and a non-shielding position lowered from the shielding position. And a shutter plate lifting / lowering means.

  According to a second aspect of the present invention, there is provided the mold reversing device according to the first aspect, wherein the base structure is a pair of arc-shaped rotations provided at both ends spaced apart by a predetermined distance in the rotational axis direction of the rotating body. It features a body support.

  According to a third aspect of the present invention, there is provided the mold reversing device according to the second aspect, wherein the rotating body includes a pair of arcuate supported portions that are rotatably supported by the pair of rotating body support portions. It is characterized by having a rotating plate.

  According to a fourth aspect of the present invention, the rotating body support portion includes a plurality of roller members that support the supported portion of the rotating plate.

According to the first aspect of the present invention, a pair of shutter mechanisms that are disposed at both ends of the base structure and can shield the outside of at least the lower half portion of the peripheral surface of the rotating body exposed to the outside. The shutter mechanism has a vertical guide portion, a shutter plate disposed in the guide portion so as to be movable up and down, and a shutter plate lifting means for moving the shutter plate up and down to switch between a shielding position and a non-shielding position. Therefore, when the peripheral surface of the rotating body is exposed to the outside world, at least the lower half of the portion exposed to the outside world can be shielded by the shutter plate switched to the shielding position, thus ensuring the safety for the operator. can do.
In addition, since the shutter plate is rigid and does not bend, it is not caught between the rotating body and the base structure, is not easily damaged, and is not easily soiled and has excellent durability.

According to the second aspect of the invention, the rotating body can be rotatably supported by the pair of rotating body support portions provided in the base structure.
According to the invention of claim 3, the arc-shaped supported portions of the pair of rotating plates of the rotating body can be rotatably supported by the pair of rotating body supporting portions of the base structure.
According to the invention of claim 4, the supported portion of the rotating plate can be supported by the plurality of roller members of the rotating body supporting portion.

1 is a perspective view of a mold reversing device according to an embodiment of the present invention. It is a perspective view in the state where the front board and left side board of the above-mentioned metallic mold inversion device were removed. It is principal part sectional drawing which shows a rotation drive means. It is a perspective view of the metallic mold inversion apparatus concerning a prior art.

The form for implementing this invention is demonstrated based on FIGS. 1-3.
In FIG. 1, for convenience of explanation, it is assumed that the symbol L indicates the left side, the symbol R indicates the right side, and the symbol F indicates the front side.
The mold reversing device 1 includes a base structure 10, a rotary body 20 that is rotatably supported on the base structure 10, and the rotary body 20 is driven to rotate about a horizontal rotation axis X in the front-rear direction. A pair of left and right rotation driving means 30 and left and right ends of the base structure 10 that can shield at least the lower half of the portion of the peripheral surface of the rotating body 20 exposed to the outside. The mold reversing device 1 includes a mold M mounted on one mold mounting surface 21a or 21b of the rotating body 20 on the other mold mounting surface 21b or 21a. 90 ° inversion is possible.

First, the base structure 10 will be described.
The base structure 10 includes a bottom plate 11, a front plate 12, a rear plate 12, a left side plate 13, a right side plate 14, and the like, and is configured in a rectangular parallelepiped shape having a predetermined front-rear width. Yes.
A D-shaped notch 15 in which the D-shaped portion is cut out by an arc line is formed at the upper part of the central portion in the left-right direction of the front plate 11 and the rear plate 12, respectively. A rotating body mounting portion for mounting the rotating body 20 is provided, a left end box-shaped portion 16 is formed at the left end portion, and a right end box-shaped portion 17 is formed at the right end portion.

  In the vicinity of the inner surface side of the front plate 11, arc-shaped rotating body support portions 18 are formed along the lower side of the D-shaped cutout portion 15, and the rotating body support portions 18 are arranged at a plurality of intervals. It is formed by an idle roller 18a. In the vicinity of the inner surface side of the rear plate 12, arc-shaped rotating body support portions 18 are formed along the vicinity of the lower side of the D-shaped notch 15, and the rotating body support portions 18 are arranged at a plurality of intervals. It is formed by an idle roller 18a. The idle roller 18a is supported on the bottom plate 11 by a support shaft 18b parallel to the rotation axis X. A pair of suspension fittings 19 protruding out of the plane are fixed to the front plate 12 and the rear plate 13.

Next, the rotating body 20 will be described.
The rotating body 20 has two mold mounting surfaces 21 a and 21 b with an opening angle of about 90 °, and is rotatably supported on the base structure 10. The rotating body 20 includes a pair of front and rear rotating plates 23 a and 23 b each having an arcuate supported portion 22 that is rotatably supported by a pair of front and rear rotating body support portions 18 of the base structure 10. And an L-shaped plate 24 that is L-shaped in a front view fixed to the rotating plates 23a and 23b. Two mold mounting surfaces 21 a and 21 b are formed on the outer surface of the L-shaped plate 24.

  Each of the rotating plates 23a and 23b is formed in an L shape in which a vertical D-shaped portion at the left portion of the circle and a horizontal D-shaped portion at the lower portion of the circle are integrated. Each of the rotating plates 23a and 23b is configured by laminating a plurality of thin steel plates with a plurality of bolts 25. The pair of front and rear rotating plates 23a and 23b includes an L-shaped plate 24, a plurality of rib members 26, and a front-rear direction. Are connected by a plurality of tie rods 27 extending in the direction. Nuts 27a are screwed onto the front and rear ends of the tie rod 27 on the outside of the rotary plates 23a and 23b.

Next, the rotation driving means 30 will be described.
The rotation driving means 30 includes a pin holder 31, a sprocket 33 engaged with some of the pins 32 of the plurality of pins 32 of the pin holder 31, and an electric motor with a speed reducer capable of rotating the sprocket 33. And a motor 34. The pin holder 31 is a member having a slightly smaller diameter than the rotary plates 23a and 23b and the same shape as the rotary plates 23a and 23b, and an L-shaped plate of the rotary body 20 between the pair of rotary plates 23a and 23b. 24 is fixed. The electric motor 34 is connected to the control drive unit.

The pin holding body 31 is composed of a pair of pin holding plates 31a and a plurality of pins 32 fixed to the vicinity of the outer periphery of these pin holding plates 31a at predetermined small intervals in the circumferential direction.
The pair of pin holding plates 31a are integrally connected by the plurality of pins 32 so as to face each other at a predetermined small interval. The rotation driving means 30 is configured to be able to rotate the rotating body 20 in the state of FIG. 1 by about 90 ° counterclockwise or to return to the original position after the rotation.

Next, the shutter mechanism 40 will be described.
The pair of shutter mechanisms 40 are disposed at the left end portion of the left end box-shaped portion 16 and the right end portion of the right end box-shaped portion 17. Since the left and right shutter mechanisms 40 have the same structure, the left shutter mechanism 40 will be described below.

  Each shutter mechanism 40 includes a vertical guide portion 41 provided at an end portion (left end portion) of the base structure 10, a shutter plate 42 disposed on the guide portion 41 so as to be movable up and down and having a predetermined vertical width, The shutter plate 42 is raised to switch the position between a shielding position that shields at least the lower half of the peripheral surface of the rotating body 20 exposed to the outside and a non-shielding position that is lowered from the shielding position. Possible shutter plate elevating means 43 is provided.

  The shutter plate 42 has a vertical width substantially equal to the vertical width of the left end box-shaped portion 16 of the base structure 10, a front-rear width slightly smaller than the front-rear width of the left end box-shaped portion 16, and a rectangular having a small left-right width. It consists of a flat box with an open bottom surface made of synthetic resin. However, the shutter plate 42 may be composed of a single metal plate or a flat box made of a metal plate.

The shutter plate lifting / lowering means 43 is composed of a plurality of hydraulic cylinders 44 erected on the end portion (left end portion) of the base structure 10. The lower end of the cylinder body 44 a of the hydraulic cylinder 44 is fixed to the bottom plate 11, and the upper end of the piston rod 44 b is fixed to the top plate 42 a of the shutter plate 42. The hydraulic cylinder 44 is connected to a hydraulic supply source.
A lamp 45 that is lit red when the shutter plate 42 is raised is provided at the upper end of the left side surface of the left end box-like portion 16. The lamp 45 is connected to the control drive unit.

  When the piston rods 44b of the plurality of hydraulic cylinders 44 are extended to the maximum extent, the shutter plate 42 is switched to the raised shielding position. At the shielding position, the lower end portion of the shutter plate 42 is engaged with the guide portion 41. When the piston rods 44b of the plurality of hydraulic cylinders 44 are contracted to the maximum, the shutter plate 42 is switched to the unshielded position. At this non-shielding position, the upper end of the shutter plate 42 is substantially coincident with the upper end of the left end box-like portion 16 or the right end box-like portion 17. A control drive unit and a hydraulic pressure supply source are accommodated in the left end box-like portion 16 and the right end box-like portion 17.

Next, the operation (operation) and effects of the mold reversing device 1 described above will be described.
As shown in FIG. 1, in a state where the mold M is mounted on the mold mounting surface 21a and the left end of the mold M is in contact with the mold mounting surface 21b, the rotating body 20 is rotated counterclockwise. When rotated by 90 °, the mold placement surface 21b is in a horizontal posture, and the mold M inverted by 90 ° is placed on the mold placement surface 21b. In this way, the mold can be inverted by 90 °. In addition, 180 degree inversion is possible by repeating 90 degree inversion twice.

  When the rotator 20 is driven to rotate clockwise and the left mold placement surface 21b is switched to the vertical posture, the left shutter plate 42 is switched to the shielding position in advance. At this time, the right shutter plate 42 is held at the non-shielding position. Therefore, the right shutter plate 42 does not get in the way when the mold M is carried in and out of the mold placement surface 21a.

  When the left shutter plate 42 is switched to the shielding position, at least the lower half of the left peripheral surface of the rotator 20 exposed to the outside is shielded, so that an operator may approach the lower half. Since it becomes impossible to do so, there is no risk of injury to hands and fingers, and safety is significantly improved.

  Contrary to the above, when the rotator 20 is rotationally driven counterclockwise to switch the right mold mounting surface 21a to the vertical posture, the right shutter plate 42 is switched to the shielding position in advance. At this time, the left shutter plate 42 is held at the non-shielding position. Therefore, the left shutter plate 42 does not get in the way when the mold M is carried in and out of the mold placement surface 21b.

  When the right shutter plate 42 is switched to the shielding position, at least the lower half of the portion of the right peripheral surface of the rotating body 20 exposed to the outside is shielded, so that an operator may approach the lower half. Since it becomes impossible to do so, there is no risk of injury to hands and fingers, and safety is significantly improved.

  In addition, since the shutter plate 42 is rigid and does not bend, it is not bitten between the rotating body 20 and the base structure 10, is not easily damaged, is not easily soiled, and has excellent durability.

Next, a modified example for modifying the embodiment will be described.
1) The shutter plate 42 may have a telescopic structure, and a telescopic hydraulic cylinder may be employed as the hydraulic cylinder 44 so that the vertical width that can be shielded is large.
2) Instead of the hydraulic cylinder of the shutter plate lifting / lowering means, an air cylinder may be adopted.

3) A chain may be fixed to the peripheral surface of the pin holder of the rotation driving means, and the sprocket engaged with the chain may be rotationally driven.
4) The rotating plates 23a and 23b may be composed of a single steel plate instead of a plurality of steel plates.
5) The shutter plate 42 is not necessarily configured as a box-shaped body, and may be configured as a single plate-shaped member.
6) Other persons skilled in the art can implement the present invention by adding various modifications without departing from the gist of the present invention, and the present invention includes such modifications.

DESCRIPTION OF SYMBOLS 1 Mold reversing | reversing apparatus 10 Base structure 18 Rotating body support part 18a Rolling roller 20 Rotating body 21a, 21b Mold mounting surface 22 Supported part 23a, 23b Rotating plate 30 Rotation drive means 40 Shutter mechanism 41 Guide part 42 Shutter Plate 43 Shutter plate lifting means

Claims (4)

A rotating structure having a base structure, two mold mounting surfaces with an opening angle of about 90 °, and rotatably supported on the base structure, and a rotation driving means capable of rotating the rotating body In a mold reversing device capable of reversing a mold placed on one mold placing surface by 90 ° on the other mold placing surface,
A pair of shutter mechanisms disposed at both ends of the base structure and capable of shielding the outside of at least the lower half of the portion of the peripheral surface of the rotating body exposed to the outside;
The shutter mechanism is
A vertical guide provided at an end of the base structure;
A shutter plate disposed in the guide portion so as to be movable up and down and having a predetermined vertical width;
A shutter plate raising / lowering means capable of switching between a shielding position for raising the shutter plate to shield at least the outside of the lower half and a non-shielding position lowered from the shielding position;
A mold reversing device characterized by comprising:   The said base structure was equipped with a pair of circular-arc-shaped rotary body support part provided in the both ends spaced apart by predetermined spacing in the rotation-axis center direction of the said rotary body. Mold reversing device.   3. The gold according to claim 2, wherein the rotating body includes a pair of rotating plates each having an arc-shaped supported portion that is rotatably supported by the pair of rotating body support portions. Mold reversing device.   The mold reversing device according to claim 3, wherein the rotating body support portion includes a plurality of roller members that support the supported portion of the rotating plate.