JP2752776B2 - Heavy goods reversing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION (Industrial Application Field) The present invention relates to a reversing device for a heavy article used for processing the upper and lower surfaces of a relatively heavy metal mold or the like for resin molding.

(Prior art) Since the mold used for resin molding needs to be processed over the upper and lower surfaces, after the upper surface is processed, the workpiece is turned over.
It must be machined with the bottom side up.

Conventionally, reversing work of a relatively heavy article such as a mold has been performed by lifting the article with a crane and then tilting the article to the opposite side.

Since this work exclusively uses the crane each time, if the crane is shared, the crane schedule needs to be adjusted.

Also, lifting and tilting heavy objects is an unstable operation performed while balancing the goods, so it requires caution,
It is necessary to coordinate the operation of the crane and the operation of slewing the goods sideways. Therefore, a lot of work time was required in addition to the waiting time of the crane.

In order to improve the above work, an L-shaped rotary inclined table (Japanese Utility Model Laid-Open No. 63-17107) has been proposed. this is,
With the article placed on a receiving table having an L-shaped placing surface, the article is rotated and inclined to change the attitude of the article by 90 degrees. Thereby, the unstable work at the time of tilting the article is improved.

When reversing an article using the above apparatus, the article is placed on the apparatus, and after tilting by 90 degrees, the article is changed on the apparatus and the article is tilted again.

(Problems to be Solved by the Invention) However, since the operation of changing the articles on the above-mentioned device requires a crane or the like, a time for waiting for the crane and a time for the slinging operation are required. Therefore, even if the above-mentioned apparatus is used, a lot of time is required for the reversing operation.

(Means for Solving the Problems) In order to solve the above problems, the present invention is a reversing device for sandwiching and reversing a heavy object from above and below, wherein the reversing device has a 90 ° fan plate on both sides. The pivotal portion of the fan plate is pivotally supported on a horizontal axis so as to be swingable in a vertical plane about the horizontal axis, and both ends of the arc of the side passing through the principal portion of the fan plate A swing base connecting the fan plates on both sides with a beam interposed therebetween, and each base end swingably supported on the horizontal axis of a main part of the swing base to sandwich the article from above and below. Two opening / closing tables each swinging 90 ° so as to press and open and close, and each end connected to each base end of the two opening / closing tables, and each other end connected to the fan plate of the swing base. A hydraulic cylinder connected to the beam, which is installed between both ends of the arc of the side passing through the main part, wherein the opening and closing table is the same as the swing surface of the swing base. Swinging in the plane, the swing range angle of the swing base and the swing range angle of the opening / closing table are adjusted so that the opening / closing table swings 180 ° with a heavy object interposed therebetween. At least one of the opening / closing tables has an adjusting table for adjusting the height of the article between the two opening / closing tables so as to press the article when the opening / closing table is closed and an article is sandwiched therebetween. I made it.

(Operation) If the swing base tilts and the opening / closing table further tilts in the same direction, and the lower opening / closing table tilts until it becomes horizontal, articles can be placed on the opening / closing table.

When the other open / close table tilts and closes from above one open / close table, the article placed on the lower open / close table is pinched and held from above and below.

When the opening / closing table tilts upwards while holding and holding the article, and the swing base tilts in the same direction,
The article is tilted by the sum of the respective tilt angles, 180
If it is tilted by degrees, it will be inverted.

Assuming that the total angle of the swing range angle of the swing base and the swing range angle of the opening / closing table is 180 degrees, if all the respective angles are tilted in the same direction, the article is tilted 180 degrees and inverted.

When the opening / closing table is closed and an article placed on the other opening / closing table is pinched and pressed, when the adjustment table provided in the opening / closing table adjusts the interval between the two opening / closing tables and moves forward and backward, the table is sandwiched between the two opening / closing tables. The article is pinched and pressed according to the height of the article.

(Example) An example of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of a reversing device according to the present invention, in which an article is placed on the near side in the figure, and FIG. 2 is a left side view of the same.

The reversing device according to the present invention is installed in the pit 11. Supports 22, 22 from both sides of base 21 at the bottom of pit 11
Rises. A horizontal shaft 31 is bridged between the two supports 22,22.

A swing base 40 is suspended from the horizontal shaft 31 so as to swing freely. Both sides of the swing base 40 are fan-shaped at 90 ° in side view, and beams 42, 42 connecting these two fan plates 41, 41 are formed at both ends 41a, 41b (fan plate 41) of the fan-shaped arc of the fan plates 41, 41. , 41 at both ends of a portion near the arc of the side passing through the main part 43).

The main portions 43 of the fan plates 41 constitute a bearing and are supported by the horizontal shaft 31 so as to be swingable. Further, a single chain 44 is attached along the sector-shaped arc of the sector plates 41, 41. The swing base 40 is tilted 90 ° about the horizontal axis 31 by the driving device 50 on the base 21 via the chain 44.

The driving device 50 is connected to the prime mover 51 shown in FIG.
And a speed reduction mechanism that decelerates to the transmission shaft 55 through the shaft 54 and the intermediate shaft 54. The transmission shaft 55 has sprockets 56, 56 at both ends.
The sprocket 56 meshes with the chain 44 of the swing base 40 to tilt and drive the swing base 40 within a range of 90 degrees.

The opening and closing tables 61 and 62 are respectively 90
° are two rectangular plate-shaped tables that tilt. Each of the open / close tables 61 and 62 has two arms provided at the end of the table surface facing when closed and at right angles to the table surface.
It is supported by the horizontal shaft 31 via 63,63.

The hydraulic cylinders 64, 65 are provided with a metal fitting 66 at an end opposite to the surface facing the opening / closing tables 61, 62, and a side of the swing base 40 that passes through the respective essential parts 43 of the fan plates 41, 41 on both sides as described above. Metal fitting 4 at the center of the beam 42 that connects between both ends 41a and 41b of the part near the arc
Connect with 5. Due to the expansion and contraction of the hydraulic cylinders 64 and 65, the respective tables 61 and 62 are tilted within a range of 90 degrees on the swing base 40.

The adjustment table 67 is provided above the opening / closing table 61 via four guide rods 68 penetrating vertically through the opening / closing table 61. The guide rod 68 swings along a guide hole (not shown) of the opening / closing table 61 to guide the adjustment table 67 in the vertical direction in the figure.

The table 61 includes a hydraulic cylinder 69 that extends and contracts in parallel with the guide rod 68. The tip of the hydraulic cylinder 69 is connected to an adjustment table 67, and the adjustment table 67 is moved up and down in the figure by the expansion and contraction operation.

When the open / close tables 61 and 62 are closed, the open / close table 6
On a surface where the 2 and the adjustment table 67 face each other, a not-shown clamp groove for fixing an article is provided in a lattice shape.

Next, the operation of the reversing device having the above configuration will be described.

As shown in FIG. 2, when the hydraulic cylinders 64, 65 of the opening / closing tables 61, 62 are contracted, the opening / closing tables 61, 62 are tilted about the horizontal shaft 31 on the swing base 40 to open each other. At that time, the transmission shaft 55 of the driving device 50 is turned to the left in the drawing to tilt the swing base 40 to the left, and the opening / closing table 61 is placed in a horizontal position.

In this state, an article 80 whose upper and lower surfaces need to be processed, such as a resin molding die, or an article 80 whose upper and lower surfaces are to be inverted is placed on the adjustment table 67. At this time, there is no limitation on the carrying means. This is because there is nothing obstructing the obstacle other than the opening / closing table 61 serving as the mounting table and the opening / closing table 62 standing upright.

In addition, since there are no obstacles around,
Of the upper surface 80a can be performed. When the processing of the upper surface 80a is completed and then the article 80 is turned over to process the opposite side, the hydraulic cylinder 65 of the upright opening / closing table 62 is extended, and the opening / closing table 62 is centered on the horizontal shaft 31. 2, it is tilted 90 ° to the right in FIG.

FIG. 3 shows the state of holding the pinch shown in FIG. When the hydraulic cylinder 69 below the adjustment table 67 is extended with the opening and closing table 62 tilted and closed, the adjustment table 67
It rises along 68, and the upper surface 80a of the article 80
It is held down.

Next, while extending the hydraulic cylinder 64 of the lower opening / closing table 61, the hydraulic cylinder 65 of the upper opening / closing table 62 is contracted, and both the opening / closing tables 61, 62 are closed, with the horizontal axis 31 as the center in FIG. The swing base 40 is tilted to the right and the sprocket 56 of the drive unit 50 is turned clockwise to tilt the swing base 40 to the right by 90 °.

FIG. 4 shows a state when the left side of FIG. 3 is inverted. Opening and closing table
The total angle of the tilt angles of the opening and closing tables 61 and 62 and the tilt angle of the swing base 40, that is, 90 ° + 90
°, and it is tilted by 180 ° for convenience. When the opening / closing table 62 is tilted to the horizontal position, when the hydraulic cylinder 64 of the upper opening / closing table 61 is contracted, the opening / closing table 61 is opened.

FIG. 5 shows the state at the time of mounting in FIG. When the upper opening / closing table 61 is opened, the inverted article 80 is moved to the lower opening / closing table.
It is exposed while being placed on 62. It is possible to process the upper surface 80b of the article 80, that is, the lower surface when the article was initially placed on the opening / closing table 61. The processing operation and the unloading operation are not restricted by the surroundings, as in the case where the article is placed on the opening / closing table 61 at the beginning.

As described above, the reversing device according to the present invention places the placed article in the reversed state without requiring other devices such as a crane. Then, before and after the reversal of the article, the article is placed on the reversing device without any obstacle around.

Therefore, there is no restriction on the carrying-in / out means and the working on the upper and lower surfaces of the article, and the upper and lower surfaces of the heavy article such as the resin molding die can be efficiently processed including the loading / unloading. The same applies to the case where the inversion operation is used alone.

The reversal of the article and the processing of the upper and lower surfaces are as described above. However, if the clamp groove is used, the mating surface of the split mold in which the above-described mold is fitted can be processed. That is, after closing the open / close table and fixing the upper and lower molds to the clamp grooves, the adjustment table is retracted to separate the upper and lower molds, and the upper open / close table is opened to the upright position, and the remaining one is opened. Process the mating surface of the split mold. Thereafter, the opening / closing table to which the other split mold is fixed can be further tilted to a horizontal position to process the mating surface.

In addition, the above-mentioned split mold after the processing of the mating surface or the split mold separately attached to the opening / closing table can be matched by closing the opening / closing table and advancing the adjustment table.

The order of mounting on the opening / closing table is the same regardless of the opening / closing table. The effect is the same if the adjustment table is provided in at least one of the opening and closing tables.

If the reversing device is not provided with an adjustment table, the height of the article is adjusted to the interval when the opening / closing table is closed, and a spacer or a mounting base is supplemented to the top and / or bottom of the article to adjust the adjustment table. It has the same effect as in the case with.

(Effects of the Invention) As described above, according to the reversing device according to the present invention, the placed article is placed in a reversed state without requiring other equipment such as a crane. Then, before and after the reversal of the article, the article is placed on the reversing device without any obstacle around.

Therefore, it is possible to quickly and safely turn a heavy article between the upper and lower opening / closing tables and hold the same without any restrictions on the carrying-in / out means. This has a great effect as a work table for processing the upper and lower surfaces of a heavy article such as a mold.

[Brief description of the drawings]

FIG. 1 is a front view of the reversing device according to the present invention when it is placed on the near side, FIG. 2 is a left side view of the same, FIG. 3 is a diagram of the pinch holding device of FIG. 2, and FIG. FIG. 3 is a view when the left side is inverted in FIG. 3, and FIG. 5 is a view when the placement in FIG. 4 is mounted. 31 ... horizontal axis, 40 ... swing base 61, 62 ... opening and closing table 67 ... adjustment table, 80 ... article

Continuation of the front page (72) Inventor Tadamasa Kashiwagi 1-10-1 Shinsayama, Sayama-shi, Saitama Honda Engineering Co., Ltd. (56) References JP-A-49-53152 (JP, A) (JP, U) J. 47-12279 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65G 7/08 B65G 47/22 B22D 17/22 B29C 33/34

Claims (1)

(57) [Claims] 1. A reversing device for sandwiching and reversing a heavy object from above and below, the reversing device having a 90 ° fan plate on both sides, and swinging a main part of the fan plate about a horizontal axis. It is movably supported on a shaft, swingable in the vertical plane as the center of the horizontal axis, and connected between the fan plates on both sides by a beam erected between both ends of an arc of a side passing through a main part of the fan plate. Each base end is pivotally supported on the swing base and the horizontal axis of a main part of the swing base so as to be swingable, and each of the bases is held so as to sandwich and hold the article from above and below.
° Two open / close tables that swing open and close, and one end connected to each base end of the two open / close tables, with each other end passing through a main part of the fan plate of the swing base. A hydraulic cylinder connected to the beam, which is installed between both ends of the arc. The open / close table swings in the same plane as the swing surface of the swing base, and the swing range angle of the swing base and The swing range angle of the opening / closing table is adjusted so that the opening / closing table swings 180 ° with a heavy object interposed therebetween. At least one of the opening / closing tables has the opening / closing table closed. A reversing device for a heavy article, comprising: an adjusting table for adjusting the height of the article between the opening and closing tables when the article is sandwiched between the opening and closing tables so as to press the article.