KR840001887Y1 - Forgtug machine for a rail spike nail - Google Patents

Abstract

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Description

Spike Bottom Forging Machine for Rails

1 is a block diagram of the present invention.

2 is an exemplary view of the crankshaft of the present invention,

(a) is a crank part 1 cross section,

(b) is 1 cross section of a crank part.

3 is a detailed view of the mold in the present invention,

(a) is the front view which looked at the metal mold | die from the front.

(b) is the side view which looked at the metal mold | die from the side.

Figure 4 is an illustration of the mold up and down operation of the present invention.

Figure 5 is an exemplary diagram spiked by the present invention.

* Explanation of symbols for main parts of the drawings

1: crankshaft 1a, 1b: crank part

4: inclined jaw 5: ram moving rod

5a: protrusion surface 5b: recessed surface

6: support roller 7: rail

8: Mobile Ram 9: Sliding Roller

10,10: moving molds and fixed molds with relatively open contacts

11: spring 12: plate

The present invention relates to a spike bottom forging machine for rail, which efficiently produces a standard product by one blow, and saves fuel required for work processing during manufacturing.

Conventionally, the spike bottom forging method for rail has been forged by hitting several times (hammering) by heating the bottom sufficiently, which requires a lot of forging time and labor, and is formed one by one by individual function. I couldn't get it as a product.

Due to this problem, the root of the forging is a type of forging scraping by pulling the bottom of the heated spike, but even in this case, the bottom of the spike takes a lot of fuel costs because it needs to be heated enough to kill the hardness. There was a drawback that a lot of loss occurs in the product due to the inconsistent position as the stretched.

In particular, if the angle of inclination of the forged part does not meet the specified standard, the sleeper and the rails are not fixed in a fixed state, which causes rail accidents.

Forging may be done using conventional presses that perform vertical movement as a separate method. In the case of ″ mold, if forging is inserted and pressurized, the forging part of the material is enlarged and tightly inserted inside the mold. Therefore, it is difficult to demold. If the mold is forcibly demolded, the shape of the forging part is deformed. Because the forged part is enlarged in the mold and the fixed mold is enlarged, when the movable mold is vertically elevated, the surface in contact with the forging is rubbed, causing the forging to be rolled in the fixed mold, thereby deforming the appearance of the forging part. This constant standard product could not be produced, and therefore, the conventional vertical motionless presses have a problem in use.

In the present invention, in order to solve such a conventional defect, a well-known pressure device is used. ″ Operation in the form, and when descending ″ It is operated in the form of ″, so that the supply of spikes and release after hitting can be produced quickly and efficiently.

This will be described in detail with reference to the accompanying drawings.

In the known fures, crank portions 1a and 1b are arranged at the center and one end of the crank shaft 1 in a direction intersected with each other by about 30 degrees, and rods 2 and 2 are placed on the crank portions 1a and 1b. ′) And rams (3) (′ 3) are articulated, and the rod (2) of the central crank portion (1a) is moved to the left and right by the crank portion (1a) along with the mold locking ram (3). The spring 11 is installed in a state where the plate 12 is interposed outside so that the mold clamping ram 3 is always elastically inward, and the ramp 3 'which is extended to the side crank part 1b is inclined inwardly. (4) The upper and lower protrusions 5a and the concave inlet 5b are formed so that the upper end of the movable rod 5 flows, and on the outside thereof, the support rollers 6 pivoted at fixed positions are slidably installed. The rail (7) to move left and right while installing the movable ram (8) sliding with the mold latching ram (3), the ram moving rod (5) side installed a sliding roller (9) to install the ram moving lot (5) the sliding roller (9) is pushed to the left and right movement on the concave inlet surface (5b) and the projecting surface (5a), the moving mold (10) is combined with the fixed mold (10 ') when descending, ″ One side is opened so that the movable mold 10 is separated laterally It is formed by the ″ type coupling structure.

Since the crank portion 1b is formed about 30 degrees in the rotational direction from the crank portion 1a in the rotational direction as described above, the forged crank portion 1b is formed more than the mold clamping ram 3 of the center crank portion 1a. (3a) of the ram (3 ') is lowered slightly before the mold hanging ram (3) is lowered along the ram movement rod (5) installed to flow to the bottom of the ram (3') that began to descend during the lowering (5a) From the inclined jaw 4 and the protruding surface 5a by pushing the sliding roller 9, the mold latching ram 3, which is pushed down by the movable ram 8, is ″ depending on the shape of the short ram of the movable rod 5. " Go down to type ″. At this time, it is pushed by the inclined jaw 4 to the position where the movable fixed mold 10 'and the up and down coupling of the movable mold 10 can be made, and then descended and inclined to the position where the fixed mold 10' and the vertical coupling can be made. It is pushed by the jaw (4) and then lowered, hitting the lower end of the spike manually supplied by half-heat treatment to the fixed mold (10 '). Forging with ″

After the forging is completed, the lifting operation is ascended when the ram moving rod 5 on the side of the crank portion 1b is raised first.

At this time, since the mold clamping ram 3 and the movable ram 8 are supported by the spring 11, the mold latching ram 3 and the movable ram 8 are in contact with the sliding roller 9 of the movable rod 5 and the inclined jaw 4 of the movable rod 5. Pushed from the inclined jaw (4) toward the indentation surface (5b) according to the cross-sectional shape of the movable rod (5) ″ Go up and down to type ″.

The spike bottom forging device of the present invention, which is pressed while repeating the above ascending and descending operations, can drastically reduce fuel required for heat treatment as compared to the case of conventional forging with multiple hammering after complete hot treatment and biting after complete hot treatment. It is possible to mold by one blow, so the work efficiency is very good, and the finished product has the same effect.

Claims (1)

In the known fures, crank portions 1a and 1b which are staggered about 30 degrees are formed on the crankshaft 1, and the rods 2 and 2 'which are fitted and moved are installed and installed in the center rod 2 An outer surface is inwardly supported by a spring 11, and a movable mold 10 having one side opened is articulated with a mold clamping ram 3 installed at a lower portion thereof, and an inclined jaw is placed on the side rod 2 '. (4) The movable rod 5 having the protruding surface 5a and the indentation surface 5b above and below is articulated with the ram 3 'installed at the lower end and supported on the outer surface of the movable rod 5. The roller 6 is installed to be slidably, and the inner side surface is in contact with the mold clamping ram 3, and the rail spikes slid with the ground roller 9 mounted on the movable ram 8 moving on the rail 7. Lower forging machine.