JPS6230049B2 - - Google Patents

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a mold repair device.

(b) Prior art and problems to be solved by the present invention Conventionally, when repairing a mold, two or three people move the mold placed on a repair table to remove the upper mold from the lower mold. Although it was removed or the upper mold was inverted,
In such cases, since the mold is heavy, it often happens that the mold is accidentally dropped, damaging the mold or injuring the worker.

For this reason, Japanese Patent Application Laid-Open No. 49-59858 was developed as a device that can mechanically lift the upper mold upward and invert it.
The mold matching finishing device described in the publication has been devised,
This device consists of a swinging table that is rotatably mounted on the top of an elevating column that is set up on the side of the bed frame, and a rotary bolster that is rotatably attached to the bottom of the swinging table. When making corrections, the rotary bolster is lowered and directed diagonally upward, so that the mating surface of the upper mold can be corrected and finished while rotating the rotary bolster. Since it is usually necessary to securely attach the upper mold to the upper mold using bolts and nuts, there is a drawback that it is not easy to attach or remove the upper mold.

In addition, a mold press described in Japanese Utility Model Application Publication No. 1986-86028 has been devised as a press machine in which the upper mold mount can be reversed, but this press machine also has the same features as above.
Since it is necessary to securely attach the upper mold to the mounting base using a plurality of bolts and nuts, there is a drawback that it takes time and effort to attach and detach the upper mold.

(c) Means for solving the problems The present invention was invented in order to solve the conventional problems as described above.

That is, the present invention lays rails on both the left and right sides of a mold repair stand, connects the left and right traveling frame columns running on these rails together with a connecting rod, and attaches an elevating rod to the left and right traveling frame columns, respectively. At the same time, the approximately central portions of the lifting rods are connected together by a connecting member, a cylinder is installed on the receiving plate fixed to the connecting rod, and the upper end of the piston rod of this cylinder is connected to the center of the connecting member. A two-pronged part is provided at the upper end of the left and right lifting rods, and a clamping shaft that slides the forked part left and right is fixed by an adjustment screw attached to the upper part of the two-pronged part. The center of the combined clamping plate is fixed with a fixing screw with a knob, and a pair of centers are protruded from the inner surface of the clamping plate in correspondence with a pair of holes provided on both left and right sides of the upper mold. , by picking up the upper mold with a pair of centers protruding from the clamping plates provided at the ends of the left and right clamping shafts, rotating it 180 degrees around the left and right clamping shafts, and then lowering it onto the repair stand, making it possible to The upper mold can be pulled away from the lower mold in a short time and turned over, without requiring the troublesome work of firmly attaching the upper mold to the upper mold mounting base using bolts and nuts. This allows the mold to be repaired by turning the surface upward.

(d) Embodiments and operations An example of implementing the present invention will now be explained with reference to the drawings as follows.

A in the figure is a repair stand composed of column rod 1, vertical rod 2, and horizontal rod 3, with rails 4 and 4' on both left and right sides.
has been installed.

In B and B', inner and outer side frame plates 7, 7', 6, 6' are mounted on running bases 5, 5' running on rails 4, 4' by pulleys 27'', 27'' provided at the bottom. The left and right running frame columns are made up of trees, and these left and right running frame columns are integrally connected by four connecting rods 8, 8, 8, 8, front and back, and upper and lower.

Reference numerals 9 and 9' denote left and right lifting rods inserted between the inner and outer side frame plates 7, 7', 6, and 6' of the left and right traveling frame columns B and B', respectively. They are integrally connected approximately at the center by a connecting member 10.

11 is a receiving plate fixed to the lower end of vertical rods 12, 12 that protrude downward from the lower front and rear connecting rods 8, 8;
A cylinder 13 is installed on this receiving plate 11, and the upper end of the piston rod 14 of the cylinder 13 is screwed into a screw hole 16 formed in a piece 15 fitted in the center of the connecting member 10, and a locking nut 28'' It is connected to the center part of the connecting member 10 by tightening it. 17 is a reinforcing plate attached to the connecting member 10, and 18 is a pedestal provided on the right side of the right traveling base 5'.A hydraulic device 19 is installed on this pedestal, and the oil feed pipes 20, 20 This hydraulic system 19 and cylinder 13 are connected.

21, 21' are holding shafts that slide left and right bifurcated parts 22, 22' provided at the upper ends of the left and right lifting rods 9, 9', and adjustment screws 23, 23' attached to the upper parts of the bifurcated parts 22, 22'. It is fixed by tightening.

In addition, 24, 24' are rack teeth provided on the lower surfaces of the left and right clamping shafts 21, 21', and the pinions 26, 24' are provided on the shafts 25, 25' with knobs attached to the lifting rods 9, 9'. 26', and by rotating the knob shafts 25, 25', the clamping shafts 21, 21' can be moved in the left-right direction. 2
4' and pinions 26, 26' are not necessarily provided.

Reference numerals 27 and 27' denote left and right clamping plates, whose centers are fitted to the tips of the left and right clamping shafts 21 and 21', respectively, and are fixed by fixing screws 28 and 28' with knobs.

As shown in FIG. 3, 29, 29, 29', 29' are provided with left and right clamps corresponding to a pair of holes 31, 31, 31', 31' provided on both left and right sides of the upper mold 30, respectively. These are a pair of centers protruding from the inner surfaces of the plates 27 and 27', respectively.

Since the present invention is constructed as described above, when repairing a mold using this device, the mold placed on the repair table A as shown in Figure 3 of the drawings must be A pair of holes 31, 31, 31', 31' provided on the left and right sides of the upper mold 30, respectively, and the clamping plates 27, 2.
A pair of centers 29, 2 protruding from the inner surface of 7'
9, 29', 29' are concentric with the rail 4,
While moving the traveling frame columns B and B' on 4', the piston rod 14 of the cylinder 13 is operated by the hydraulic device 19, and the positions of the centers 29 and 29' are adjusted while moving the lifting rods 9 and 9' up and down. After that, push the left and right clamping shafts 21, 21' inward, and insert the pair of centers 29, 29, 29', 2 protruding from the clamping plates 27, 27' provided at the ends of the clamping shafts 21, 21'.
Holes 31 with holes 9' formed on both left and right sides of the upper mold 30,
31 and clamp the upper mold 30 from both the left and right sides, and by tightening the adjustment screw 23, the left and right clamping shafts 21, 21' are provided at the upper ends of the lifting rods 9, 9'. 22', the cylinder 13 is operated to raise the lifting rods 9, 9' as shown in FIG.
, move the traveling frame pillars B and B' to move the upper mold 30 from directly above the lower mold 32, and then remove the fixing screws 28 and 2 of the left and right holding plates 27 and 27'.
8', rotate the upper mold 30 180 degrees around the clamping shafts 21, 21', and then remove the cylinder 13.
Activate to pull the lifting rods 9, 9' downward,
By lowering the upper mold 30 onto the repair table A, the operator can easily repair the mold in a comfortable posture.

Incidentally, when the upper mold 30 is to be superposed on the lower mold 32 after repair, the superposition can be easily done by following the completely reverse procedure to the above.

(E) Effects of the Invention The present invention enables one worker to easily and safely perform the work of separating the upper mold from the lower mold, inverting the upper mold, and replacing the molding surface with the mold facing upward as described above. Therefore, the work can be carried out safely without the risk of accidentally dropping the upper mold and damaging it, or causing injury.

In particular, in the present invention, a pair of holes are provided on both left and right sides of the upper mold, and a pair of centers protruding from a clamping plate provided at the tips of the left and right clamping shafts corresponding to the pair of holes are used to hold the upper mold. It is designed to be lifted up, rotated 180 degrees around the left and right gripping shafts, and then lowered onto the repair table, so unlike conventional devices of this type, multiple bolts and nuts are used to tighten the upper metal. It is possible to remove the upper mold from the lower mold in a short period of time without having to do the troublesome work of firmly attaching the upper mold to the mold mount, and then turn it over so that the mold mating surface faces upward. It is highly effective as a repair device.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an apparatus according to the present invention. FIG. 2 is a sectional view taken along the line XX shown in FIG. 1. FIG. 3 is a front view showing the mold placed on the repair table. Figure 4 is a front view of the upper mold being held up. FIG. 5 is a sectional view taken along the Y--Y line shown in FIG. 2. A in the diagram is a repair stand. B is the traveling frame column. 4 is the rail.
8 is a connecting rod. 9 is a lifting rod. 10 is a connecting member. 11
is the catch plate. 13 is the cylinder. 14 is the piston rod. 19 is a hydraulic system. 21 is the clamping shaft. 22 is the forked part. 23 is an adjustment screw. 27 is a clamping plate. 28 is a fixing screw. 29 is the center. 30 is the upper mold. 31 is a hole.

Claims (1)

[Claims] 1. Lay rails on both the left and right sides of the mold repair stand, connect the left and right running frame pillars running on these rails together with connecting rods, fit the lifting rods into the left and right running frame pillars, respectively, and Approximately central parts of the lifting rods are connected together by a connecting member, a cylinder is installed on a receiving plate fixed to the connecting rod, and the upper end of the piston rod of this cylinder is connected to the central part of the connecting member. A bifurcated portion is provided at the upper end of the left and right lifting rods, and a clamping shaft that slides from side to side on the bifurcated portion is fixed by an adjustment screw attached to the top of the bifurcated portion, and a clamping plate is fitted to the tips of the left and right clamping shafts, respectively. The center of the clamping plate is fixed with a fixing screw with a knob, and a pair of centers are protruded from the inner surface of the clamping plate in correspondence with a pair of holes provided on both left and right sides of the upper mold. Device.