JP3295227B2 - Work reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the separation of a two-member work, for example, by separating one mold member from the other mold member and inverting one of the mold members to facilitate maintenance. Related to a device that turns over
More particularly, the present invention relates to a device capable of easily inspecting and treating a lower surface of a work.

[0002]

2. Description of the Related Art For example, a mold for injection molding, press molding, and the like is composed of a pair of mold members which are openably and closably fitted. The member must be separated from the other mold member, and one mold member must be inverted and placed on a working table or the like. For this purpose, conventionally, for example, one mold member is lifted by a chain block, and the mold member is rotated in the suspended state and lowered onto a working table or the like.

[0003]

However, the above-described separation / reversal operation using a chain block must be performed carefully since there is a risk of erroneously dropping the work, and it takes time and the workability is poor. There are drawbacks.

Further, the conventional reversing device only has a function of simply reversing a set work, and therefore, in general, a work such as the above-mentioned mold which needs to be separated before the reversal is left as it is. It could not be used.

For this purpose, the present inventor has filed Japanese Patent Application No. 5-3479.
In the work reversing device already applied for a patent at 50, a frame on which a work can be placed is provided on a main body frame so as to be horizontally movable by a predetermined guide means, and elevating means are provided on both sides of the main body frame on both sides of the frame. By providing a pair of bearings, the pair of bearings are supported so as to be able to move up and down, and the bearings are rotatably supported on the rotating frame so as to be rotatable in a vertical plane, and the rotating frame grips a work placed on the gantry. I was able to do it.

However, in the above-mentioned reversing device, when inspection or treatment of the lower surface of the work is required, the worker must enter the lower side of the work and work upward, and must be in an impossible posture and in a narrow place. There is a problem that efficiency is low because the user has to work.

[0007]

SUMMARY OF THE INVENTION A work reversing device according to the present invention is intended to solve the above-mentioned problem, and a base on which a work can be placed is provided on a main body frame so as to be horizontally movable by predetermined guide means. By providing elevating means on both sides of the body frame sandwiching the gantry, the pair of bearing portions is supported so as to be able to move up and down, and the rotating frame is rotatably supported on the bearing portions so as to be rotatable in a vertical plane. In a work reversing device configured to be able to grip a work placed on the gantry on a rotating frame, a mast is established on one side of the main body frame, and a hoisting device is hung from a turning arm provided on the mast. At the same time, a fastening device capable of gripping the work is provided on the gantry, and a hinge is provided on at least one of the halves, and the other side of the work is rolled up while the other side of the work is gripped on the gantry. Depending on the device It has to be raised is a person characterized by.

[0008]

By lifting one side of the work placed on the gantry by the hoisting device, the work can be raised with the hinge as a fulcrum and the lower surface can be turned sideways, so that inspection and treatment of the lower surface of the work can be easily performed.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. The main body frame 1 is integrally formed with an overhang portion 2 at the front thereof,
Two parallel rails 3, 3 are laid horizontally as guide means from the overhang 2 to the center of the main body frame 1. 3A and 3B are stoppers provided at both ends of the rails 3 and 3, respectively.

Reference numeral 4 designates a frame composed of a pair of base members 4a and 4b whose opposing surfaces are cut out in the shape of []. Slide members 4c and 4d are provided below the base members 4a and 4b, respectively.
As c, 4d slide on the rails 3, 3, the base members 4a, 4b are provided so as to be horizontally movable along the rails 3, 3. Reference numeral 5 denotes a fixing member provided on each of the sliding members 4c and 4d. The fixing member 5 rotates the handle 6 protruding from one side to press the tip of the handle shaft to the rail 3 so as to be pressed. The movement of the members 4a and 4b can be restrained.

The sliding member 4 on the one base member 4a
The hinges 32 are provided at the joint portions with the members c, respectively, by passing the support shafts 31 through the bearing portions 30 horizontally.

A sliding member 4 for supporting the other base member 4b
A positioning pin 33 having a truncated cone shape protrudes from the upper surface of d, and a through-hole 34 that fits into the positioning pin 33 is formed in the base member 4b. Reference numeral 35 denotes a handle protruding from the outer surface of the base member 4b.

The illustrated work 7 is a mold having a lower half mold member 7a and an upper half mold member 7b. Stand member 4
Elongated holes 8 are respectively formed along both inclined surfaces of the opposing surfaces a and 4b, and the elongate holes 8 are provided with fastening members 9 including bolts 9a and clamps 9b.

On the outer sides of both sides of the rails 3 and 3 in the main body frame 1, there are provided lifting / lowering means in which a fluid cylinder 11 is vertically installed with its operating shaft 12 facing upward. A bearing 13 is supported on the upper end of the operating shaft 12. Reference numeral 14 denotes a guide shaft suspended from the lower surface of the bearing portion 13 so as to be parallel to the operating shaft 12. The guide shaft 14 is slidably inserted into guide cylinders 15 provided on both sides of the fluid cylinder 11. ing.

Numeral 16 denotes a rectangular frame-shaped rotating frame. The rotating frame 16 is projected on both sides and rotates in a vertical plane by supporting a rotating shaft 17 on a bearing 18 fixed on the bearing portion 13. It is freely supported. Reference numeral 19 denotes a rotating device including a speed reducer 20 and a motor 21 provided on one of the bearings 13. The rotating device 19 rotates the rotating shaft 17 to rotate the rotating frame 16 to a desired angle. I am trying to stop.

The rotating frame 16 has an opposing surface.
A gantry 22 including a pair of pedestal members 22a and 22b cut in a shape is provided. The one base member 22a is fixed to one end of the rotary frame 16 by bolts 23, while the other base member 22b slides the bolt / nut 25 in the guide groove 22 formed in the rotary frame 16. The base member 22b can be moved freely along the guide groove 24, and the distance between the base member 22b and the base member 22a can be adjusted widely. Can be fixed anywhere.

Along the two slopes of the opposing surfaces of the base members 22a and 22b, elongated holes 26 are respectively formed in the same manner as the elongated holes 8, and bolts 27a and clamp fittings 27 are formed in the elongated holes 26.
b is provided.

Reference numeral 40 denotes a mast which is vertically formed on a mounting plate 41 fixed to one side of the main body frame 1, and bearings 42 and 43 are provided on the mast 40 as shown in FIG. The bearings 42 and 43 support the revolving arm 44 to be revolvable in a horizontal plane. 45 is the revolving arm 44
The roller 45 rolls on a strip-shaped rail 49 around the mast 40 while supporting the load of the turning arm 44 as the turning arm 44 turns as the turning arm 44 turns. I do. Reference numeral 47 denotes a brake shaft suspended from the belt-shaped rail 46. By operating a handle 48 provided at the lower end of the brake shaft 47 and pulling the brake shaft 47, the rotation of the roller 45 is braked and the turning arm 44 turns. Movement is stopped.

Reference numeral 50 denotes an electric hoisting device suspended on the turning arm 44 by wheels 51 along the longitudinal direction of the turning arm 44, and 52 denotes a hook of the hoisting device 50.

In the work reversing device thus constructed, the procedure for separating the work 7 into a lower half mold member 7a and an upper half mold member 7b and inverting one mold member 7b will be described with reference to the drawings. . First, as shown in FIGS. 1 to 3, the work 7 is placed on the gantry 4, and the mounting plate portion of the mold member 7 a is fixedly fastened by the fastener 9. At that time, the base members 4a,
The interval of 4b is adjusted in accordance with the size of the mounting plate portion of the mold member 7a so that the four corners of the mounting plate portion ride on both slopes of the notch as shown in FIG. The position of the bolt 9a in the elongated hole 8 is adjusted so as to cover the clamp 9b, and the bolt 9a is tightened to fix the mounting plate so as to straddle both the base members 4a and 4b.

Then, the work 7 is moved along the rails 3 and 3 and stopped just below the rotating frame 16 as shown in FIG. Then, by contracting the operating shaft 12 of the fluid cylinder 11, the rotating frame 16 is lowered to
The fixing plate 27 of the upper half mold member 7b is fixedly fastened to the fixing member 27 by the fastener 27.

When the mold member 7b is fixed to the gantry 22, the distance between the base member 22a and the base member 22a is adjusted according to the size of the mounting plate by moving the base member 22b along the guide groove 24. Tighten the nut 25. Then, the four corners of the mounting plate are brought into contact with both the inclined surfaces of the notches of the base members 22a and 22b, and the position of the bolt 27a is adjusted within the range of the elongated hole 26 to tighten the bolt 27a. Then, the clamp fitting 27b is engaged with the mounting plate.

Then, the rotating frame 16 is raised to move the lower half mold member 7a to the upper half mold member 7b as shown in FIG.
Is separated. Further, as shown in FIG. 9, the gantry 4 is returned to its original position, and the rotating frame 19 is driven by the rotating device 19.
Rotate 6 in the vertical plane. Thus, the upper half mold member 7
When b can be rotated by 180 degrees, the operating shaft 12 of the fluid cylinder 11 is contracted and the rotating frame 16 is lowered, thereby lowering the lower half mold member 7a and the upper half mold member 7b as shown in FIG. They are juxtaposed with the mold surface facing upward.
For this reason, the mold surface can be easily corrected, assembled, inspected, and the like.

Further, the turning arm 44 is turned so that the hoisting device 5
0 is moved along the turning arm 44 to stop the hoisting device 50 directly above the mold member 7a, the hook 52 is engaged with the handle 35, and the hoisting device 50 is operated to operate the mold member 7
a of one side of the mold member 7a as shown in FIG.
Is raised with the hinge 32 as a fulcrum,
Since the lower surface of the mold member 7a can be turned sideways, it is easier to perform inspection, repair, and assembly of the lower surface. In this case, since the mold member 7a is supported by the hinge 32 and is not in a so-called suspended state, the processing can be easily performed without swinging unnecessarily. After the necessary work is completed, the mold member 7a and the mold member 7b can be combined as before by the reverse procedure.

The gantry 4 has a pair of pedestal members 4a and 4b, and the opposing surfaces of the gantry 4a and 4b are notched so as to form four corners of the work 7 on both slopes of the opposing surfaces. , The workpiece 7 can be placed in a wide range from an aspect ratio close to a square as shown in the illustrated embodiment to a rectangular one as indicated by reference numeral 7 'in FIG. By supporting the work 7 on the slope of the shape as described above, the lower surface of the work 7 is widely opened, and there is an advantage that processing requiring inspection and correction can be easily performed. The same applies to the gantry 22.

Although the case where the work is a mold has been described above, the present invention separates and inverts a work formed by combining two members such as a case body and a lid body other than the mold. Can be used widely.

In this embodiment, rails 3 and
Although the example in which the base 3 is provided is shown, other equivalent guide means such as a roller conveyor provided on the main body frame 1 may be used in order to provide the gantry 4 so as to be horizontally movable on the main body frame 1. .

[0028]

As described above, the work reversing device of the present invention
In addition to a hoisting device that can be freely moved by a swing arm, a hinge is provided on the base member, and one side of the work placed on the base member is lifted by the hoisting device to hinge the work. Can be set up as a fulcrum, so that inspection of the lower surface of the work and the like can be performed safely and easily. Further, there is a beneficial effect that the separation and reversal of the work can be efficiently performed in a short time, and the workability is improved.

[Brief description of the drawings]

FIG. 1 is a side view of a work reversing device according to the present invention.

FIG. 2 is a partial cross-sectional front view of the work reversing device according to the present invention.

FIG. 3 is a plan view of a work reversing device according to the present invention.

FIG. 4 is an enlarged front view of a turning arm of the work reversing device.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is an operation state diagram of FIG. 1;

FIG. 7 is an operation state diagram of FIG. 1;

FIG. 8 is an operation state diagram of FIG. 1;

FIG. 9 is an operation state diagram of FIG. 1;

FIG. 10 is a perspective view showing an operation state of FIG. 1;

FIG. 11 is a side view when the work is lifted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 3 Rail 4 Stand 4a, 4b Stand member 4c, 4d Sliding body 5 Fixture 7 Work 8 Long hole 9 Fastener 11 Fluid cylinder 13 Bearing unit 16 Rotating frame 17 Rotating shaft 19 Rotating device 22 Stand 22a, 22b Stand Member 24 Guide groove 25 Bolt / nut 26 Long hole 27 Fastener 30 Bearing part 31 Support shaft 32 Hinge 33 Positioning pin 34 Through hole 35 Handle 40 Mast 44 Swivel arm 50 Hoisting device

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B66C 13/08 B21D 43/14 B65G 47/90

Claims (1)

(57) [Claims] A pedestal on which a workpiece can be placed is provided on a main body frame so as to be horizontally movable by a predetermined guide means, and elevating means are provided on both sides of the main body frame on both sides of the pedestal, whereby a pair of bearings A work reversing unit that supports the unit so as to be able to move up and down, supports a rotating frame so as to be able to rotate in a vertical plane on the bearing unit, and allows the rotating frame to grip a work placed on the gantry. In the device, a mast is established on one side of the main body frame, and a hoisting device is suspended from a swing arm provided on the mast, and a fastening tool capable of gripping a work is provided on the gantry, A work reversing device, wherein a hinge is provided on at least one side, and the other side of the work is lifted by the hoisting device while one side of the work is held on the gantry.