JPH0614926Y2 - Mold cooling pipe - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to mold cooling for cooling a mold by mounting it in a cooling hole of a mold used for die casting, injection molding, etc. In particular, the present invention relates to a mold cooling pipe in which an inner pipe is concentrically arranged in an outer pipe to form a forward path and a return path of cooling water so that the cooling water is circulated and supplied to a cooling hole of a mold.

<Prior art and its problems> As shown in FIG.
The outer pipe a ₁ and the inner pipe a ₂ are inseparably integrated with the hose connection base a ₃ having the water inlet 1 communicating with the outward path 3 and the water outlet 2 communicating with the return path 4, so that cooling is possible. If the scale of the cooling water is deteriorated due to the accumulation of water stains on the outward path 3 or the return path 4 of the water, or if either the outer pipe or the inner pipe is damaged, the whole becomes unusable and discarded. It had to be done and it was very uneconomical.

<Problems to be Solved by the Invention> The present invention has been made in view of such a conventional problem. The outer pipe, the inner pipe, and the hose connection mouthpiece can be easily disassembled from each other, and the outward passage of the cooling water is performed. It can be easily removed and reused even if water stains adhere on the return path, and even if either the outer pipe or the inner pipe is damaged, only the other pipe is replaced with a new one and reused. The purpose is to provide an economical mold cooling pipe that can be used.

<Means for Solving the Problem> A mold cooling pipe of the present invention that achieves such an object has a hose connection mouthpiece having a water inlet chamber communicating with a water inlet and a water outlet chamber communicating with a water outlet of an outer pipe. Formed in parallel on the shaft core wire, the holding pipe with the communication hole opened in the water inlet chamber is installed so that it can be inserted and removed in the axial direction, and one end of the outer pipe is screwed and connected to the water outlet chamber, It is characterized in that one end is penetrated through the water discharge chamber and is connected to the holding pipe for communication.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

In the cooling pipe A, the inner pipe a ₂ is concentrically arranged in the outer pipe a ₁ to form the outward path 3 and the return path 4 of the cooling water, and at one end of the outer pipe a ₁ and the inner pipe a ₂ . a hose connection mouth ring a ₃ constructed integrally attached to the mold B
It is removably attached to the cooling hole 19 of.

Hose connection mouth ring a ₃ is formed in a substantially cylindrical shape allowed disposed coaxially to one end of the outer pipe a _1, and a water outlet 2 for communication with protruded water inlet 1 and return 4 communicating with the outward three At the same time, a water inlet chamber 10 communicating with the water inlet 1 and a water outlet chamber 5 communicating with the water outlet 2 are formed in parallel on the axis of the outer pipe a ₁ .

The water inlet chamber 10 has an opening 13 on the side opposite to the partition wall 14 of the water outlet chamber 5.
The holding tube 8 is installed in the inside so that it can be pulled out and inserted from the opening 13 in the axial direction, and the opening 13 is closed with the stopper lid 12 so that it can be opened and closed.

Further, the water discharge chamber 5 has an opening 11 on the side opposite to the partition wall 14, and one end of the outer pipe a ₁ is detachably screwed and connected to the opening 11 and the inner pipe a ₂ One end of the water from the water outlet chamber 5 through the insertion hole 7 of the partition wall 14
The holding tube 8 in 10 is connected and connected. At this time, the inner pipe a
_A retaining collar 9 is integrally attached to one end of the inner pipe _2, and the retaining flange 9 is sandwiched between the packing 15 installed on the partition wall 14 and the end surface of the retaining pipe 8 so that the inner pipe a ₂ communicates with the retaining pipe 8. Connected, or like the second embodiment shown in FIG.
Inner end 9 of the pipe a ₂ 'was allowed widening formed in a substantially trumpet shape, one end 9' so as to communicatively connected to the holding tube 8 of the inner pipe a ₂ by abutting the end face of the retaining tube 8. If configured as in the second embodiment, it requires engagement flange 9 at one end of the inner pipe a ₂ Ru mounting is eliminated.

The holding pipe 8 has a side wall formed with a communication hole 18 for communicating the inside of the water entry chamber 10 and the inner pipe a _2, that is, the outward path 3, and one end thereof can be removed to a recess 17 formed on the inner surface of the stopper lid 12. And the other end is brought into contact with the locking flange 9 attached to one end of the inner pipe a ₂ to communicate the inner pipe a _2, that is, three outward paths. If the holding tube 8 is formed in the same body as the cap lid 12 as in the third embodiment shown in FIG.
The need for 12 is eliminated, and the holding pipe 8 or the inner pipe a ₂ can be attached and detached more easily.

And Thus, the cooling water supplied from water inlet port 1 of the hose connection mouth ring a ₃ is, the mold B internal i.e. through the outward three street pipe a ₂ a communicating hole 18 of the holding tube 8 from inlet chamber 10 Cooling hole
19, the heat is exchanged there, and the water is discharged from the return path 4 through the water outlet chamber 5 of the hose connection mouthpiece a ₃ to the outside through the water outlet 2.

<Effect of the Invention> Since the mold cooling pipe of the present invention is configured in this way, the outer pipe, the inner pipe, and the hose connection mouthpiece can be easily disassembled from each other. Therefore, even if water stains or the like adhere to the outward and return routes of the cooling water, the water stains can be easily removed and reused for each component, and either the outer pipe or the inner pipe is damaged. Even in the case, only the other pipe can be replaced with a new pipe and reused, and it can be used very economically.

Therefore, the intended purpose can be achieved.

[Brief description of drawings]

1 to 6 show a first embodiment of the present invention, in which FIG. 1 is a vertical sectional front view in a state of being mounted in a cooling hole of a mold, FIG. 2 is a vertical sectional front view in a disassembled state, and FIG. The figure is (III) in Figure 1.
-(III) line longitudinal sectional view, FIG. 4 shows (IV)-(I of FIG.
V) line vertical sectional view, FIG. 5 is a vertical sectional front view showing a second embodiment of the present invention, FIG. 6 is a vertical sectional front view showing a third embodiment of the present invention, and FIG. 7 is a vertical sectional front view showing a conventional example. It is a figure. In the figure, A: cooling pipe, a ₁ : outer pipe a ₂ : inner pipe, a ₃ : hose connection mouthpiece 1: water inlet port, 2: water outlet port 3: outward route, 4: return route 5: water outlet chamber, 8: holding pipe 10: Water entry room, 18: Communication hole

Claims (1)

[Scope of utility model registration request] 1. An outer pipe is concentrically arranged in an outer pipe to form an outward path and a return path of cooling water, and one end of the outer pipe and the inner pipe is connected to a water inlet and a return path communicating with the outward path. In a mold cooling pipe having a hose connection mouthpiece provided with a water outlet, the hose connection mouthpiece has a water inlet chamber communicating with the water inlet and a water outlet chamber communicating with the water outlet, and the axis of the outer pipe. It is formed in parallel on the line, the holding pipe with the communication hole opened in the water inlet chamber is installed so that it can be removed and inserted in the axial direction, and one end of the outer pipe is screwed and connected to the water outlet chamber, A mold cooling pipe, characterized in that one end thereof penetrates through the water discharge chamber and is connected to the holding pipe for communication.