JPH0521326Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial technical field] The present invention relates to a press mold dividing tool provided as a special tool that can easily and easily align and divide the edges of a press mold on a workbench. It is something.

[Problems to be Solved by the Prior Art and Ideas] Conventional press molds have a structure that prevents misalignment of the upper mold and the lower mold by fitting a guide pin and a guide bush. However, since there is almost no clearance between these guide pins and guide bushings, it is well known that it is extremely difficult to unmesh the guide pins and guide bushes. If the mold is heavy enough to be lifted by hand, the currently commonly used method is to use a suitable tool (not a specialized tool) at hand.
The molds are separated by using brute strength or by using force, but these methods often cause back injuries during work, and if the mold is heavy, a chain block is often used. It requires large-scale equipment such as attaching it to a press machine and dividing it, and it takes time to install it on the machine.For the same reason, it is difficult to position the punch and die when aligning the blades. There were drawbacks such as stroke adjustment, especially fine stroke adjustment, which could not be easily performed.

The present invention has been made in view of the above points, and includes a leg frame integrally projecting from one side of the base, and a hanging frame extending parallel to the base integrally at the lower end of the leg frame. A holder formed by bending,
A split tool for a press mold is formed from a lock bolt for tightening and fixing the holder, and a jack bolt that is screwed into the base of the holder, and the holder is fixedly installed on the shank plate of the upper mold to tighten the jack bolt. By positioning the tip of the shank plate in contact with the top end surface of the guide pin and further screwing in the jack bolt, the shank plate is raised vertically, and the guide bush can be easily removed from the guide pin.It is small and easy to handle. The aim is to provide a special tool for dividing large molds.

[Means for Solving the Problems] An example of the implementation of the present invention will be described below with reference to the drawings.The holder 1 has a leg frame 3 integrally projecting downward from one side of the base 2. A hanging frame part 4 is formed parallel to the lower surface of the base 2 at the lower end, and a lock bolt 6 is screwed into the screw hole 5 bored through the base 2 from the upper surface to the lower surface. A slide nut 7 is installed on a line so as to pass through from the upper surface to the lower surface of the base 2, and a jack bolt 8 is screwed into the slide nut 7 so as to be able to freely penetrate.

The base 2 of the holder 1 has an elongated hole 9 formed therethrough on the center line in the longitudinal direction so that the slide nut 7 can move through the elongated hole 9 and set at any desired position.

Further, 11 is a handle of the jack bolt 8, 12 is a knob of the handle 11, and 13 is a thumb screw which is tightened and installed through a long hole 14 provided in the handle 11 so that the length of the handle can be adjusted.

[Function] Since the present invention has the above-mentioned configuration, the upper die 20 includes the punch 17 provided on the lower surface of the shank plate 15 via the punch plate 16, and the stripper plate 19 provided via the spring 18. and a lower mold 24 comprising a die 23 provided on the upper surface of the die base 21 via a die plate 22.
The holder 1 of the present invention is assembled into a press mold P in which the left and right guide bushes 26 provided in the shank plate 15 are fitted onto the upper parts of the two left and right guide pins 25 that stand up from the lower mold 24. The shank plate 15 of the upper mold 20 is inserted between the base 2 and the hanging frame part 4, and the holder 1 is tightened and fixed to the shank plate 15 with the lock bolt 6. The holder 1 is installed at each of the left and right guide bushes 26 of the shank plate 15, respectively. Then, the slide nut 7 moves the elongated hole 9 so that the center of the slide nut 7 overlaps the center of the guide bush 26. Therefore, each holder 1 installed on the left and right positions
When each jack bolt 8 is screwed into the slide nut 7, the lower end of the jack bolt 8 comes into contact with the top surface of the guide pin 25, and by further rotating the jack bolt 8, the slide nut 7 rise,
Along with this, the shank plate 15 held by the holder 1 rises, causing the guide bush 26 to rise and be removed from the guide pin 25. In this case, by screwing in the left and right jack bolts 8 at the same time, the shank plate 15 rises horizontally, and the left and right guide bushes 26 rise vertically, allowing them to be easily removed from the guide pins 25.

The hanging frame part 4 of the holder 1 is formed with a notch 10 corresponding to the shape of the guide bushing 26 of the upper mold 20 at the center of the tip to prevent the hanging frame part 4 from biting into the shank plate 15 of the mold press P. By deepening the depth, the holder 1 can be fixed firmly and reliably.

In addition, since there are various shapes of the guide bushes of the upper die 20, the leg frame portion of the holder 1a can be made in accordance with various shapes of guide bushes without being limited to the notch 10, for example, as shown in FIG. Of course, the hanging frame portions 10a, 10a may be formed in a protruding manner by extending to both sides of 3a.

[Effect of the invention] Therefore, the present invention provides a split tool exclusively for press molds having a jack structure, in which the holder is fixedly installed on the upper die, the jack bolt is set and positioned at the center of the guide bush, and the jack bolt is set and positioned at the center of the guide bush. It provides an extremely easy-to-operate tool that can push up and divide the upper mold by simply placing it on the top of the pin and screwing it in. Therefore, there is no need to attach it to a press machine or use a chain block. Even when the blades are aligned, the blades can be easily aligned and divided on the workbench, and in particular, the stroke adjustment for positioning when aligning the punch and die blades can be easily made with high accuracy and fine adjustment. Therefore, it can be divided on the spot before press work and when inspecting the mold.Furthermore, because it is compact, it is easy to carry and is extremely efficient and suitable for on-site work for mold repair. It has the advantage of being provided as a specialized tool.

[Brief explanation of the drawing]

The figures are related to the present invention; Fig. 1 is an overall perspective view of the split tool, Fig. 2 is a vertical sectional view thereof, Fig. 3 is a usage state shown installed in a press mold, and Fig. 4 is a main part of the tool. FIG. 7 is a perspective view of a holder showing another embodiment of the invention. 1... Holder, 2... Base, 3... Leg frame, 4... Hanging frame, 6... Lock bolt, 7...
Slide nut, 8...jazz bolt.

Claims (1)

[Scope of utility model registration request] a holder having a leg frame integrally projecting from one side of the base and integrally bending a hanging frame parallel to the base at the lower end of the leg frame; and a holder for tightening and fixing the holder. A mold dividing tool comprising a locking bolt and a jack bolt screwably installed in the base of the holder, wherein the base extends longer than the hanging frame and is provided with a slide nut for screwing the jack bolt. A long hole is drilled to allow the slide nut to be freely adjusted and set in a position corresponding to the guide bushing of the press die, and the hanging frame portion is provided with a notch to be inserted into the guide bush of the press die. Mold dividing tool.