KR20100057209A

KR20100057209A - Mold assembly

Info

Publication number: KR20100057209A
Application number: KR1020080116128A
Authority: KR
Inventors: 김병선
Original assignee: 한국단자공업 주식회사
Priority date: 2008-11-21
Filing date: 2008-11-21
Publication date: 2010-05-31

Abstract

PURPOSE: A mold assembly is provided to prevent leakage of cooling fluid by minimizing damage to the connection part of a through-hole and a flow path. CONSTITUTION: A mold assembly comprises a template(30), a main core(40), and a connection block(50). The template is installed in one of a fixed side and a movable side. The main core has a flow path inside. A cooling fluid passes through the flow path. An inlet port(44a) and an outlet port(44b) of the flow path are formed on one side of the main core. The connection block is installed through the template. The connection block has multiple through-holes(54) and bolt holes(56). The through-holes are communicated with the inlet port and the outlet port.

Description

Mold assembly

The present invention relates to a mold assembly, and more particularly, to an injection mold assembly for manufacturing a product by injecting a molten resin into the cavity.

FIG. 1 is a plan view of a template provided in a general mold assembly, and FIG. 2 is a separate perspective view of the configuration of FIG. 1.

The die 10 is provided on the fixed side of the molding machine. The template 10 is a part that is in close contact with the template provided on the movable side of the molding machine. The template 10 is formed in a substantially rectangular parallelepiped shape.

A core hole 11 penetrates through the template 10, and a main core 15 is inserted into the core hole 11. In addition, a pipe hole 12 into which the connection pipe 18 to be described later is inserted is formed through the side of the template 10.

The main core 15 cooperates with a main core (not shown) provided on the movable side of the molding machine to form a cavity corresponding to the shape of the product. The main core 15 is provided with a plurality of mounting portions 16, which is a portion in which a shape core (not shown) for molding a plurality of products at the same time is inserted.

The main core 15 has a flow path 16 ′ through which a cooling fluid for cooling the main core 15 passes. The flow path inlet / outlet 17 serving as the inlet and outlet of the flow path 16 ′ is formed side by side on one surface of the main core 15.

The pipe hole 12 of the template 10 is inserted with a connection pipe 18 for communicating the flow path 16 'with the outside. A thread 19 is formed on one side outer circumferential surface of the connecting pipe 18 to be screwed to the flow channel inlet and outlet 17, respectively. The connection pipe 18 is fixed to the main core 15 by being screwed with the flow path inlet and outlet 17 and at the same time communicates with the flow path inlet and outlet 17.

However, the prior art as described above has the following problems.

In the related art, since the connecting pipe 18 is screwed directly to the flow path inlet and outlet 17, damage occurs to the flow path inlet and outlet 17, causing a problem of leakage of the cooling fluid. Once the flow path inlet and outlet 17 is damaged, the main core 15 itself needs to be replaced, thereby increasing the maintenance cost of the mold.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to minimize the damage of the inlet and outlet of the flow path formed in the main core.

According to a feature of the present invention for achieving the above object, the present invention is a template provided on any one of the fixed side and the movable side; A main core provided in the template and having a passage through which a cooling fluid passes, and having an inlet and an outlet of the passage formed on one surface thereof; It is installed to penetrate through the template, there are formed a plurality of communication holes in communication with the inlet and outlet, respectively, a bolt hole is formed in a position out of the communication hole, the fixing bolt penetrating the bolt hole is the main And a connection block mounted by being fastened to the core.

A core hole through which the main core is selectively seated is formed through the connecting block up and down, and a block seating hole through which the connection block is selectively inserted is formed by penetrating the connecting block laterally, thereby inserting the main core. The direction and the insertion direction of the connecting block is characterized in that orthogonal to each other.

The inlet and the outlet are communicated with the communication hole, respectively, by the surface contact between the connection block and the main core, characterized in that the sealing member is provided at the portion where the inlet and the discharge port and the communication hole meet.

The sealing member is formed in a ring shape, characterized in that it is seated in the seating groove is formed to be recessed around the communication hole inlet of the connection block.

The fastening hole for fastening the fixing bolt is formed in a predetermined depth in a position outside the inlet and the discharge port on one surface of the main core.

The main core is provided with a plurality of shape cores, the flow path is characterized in that formed around the edge of the shape core.

According to the mold assembly according to the present invention, the following effects can be expected.

In the present invention, the connection between the communication hole and the inlet, the communication hole and the discharge port is made by the surface contact with the main core and the connection block in the state in which airtight is maintained by the seal member. And the coupling of the connection block and the main core is made by a separate fixing bolt is fastened. As such, since the connection of the communication hole and the fixing of the connection block are made separately, the damage of the connection part of the communication hole and the flow path is minimized in spite of repeated disassembly of each component, preventing leakage of the cooling fluid and maintaining the mold. The maintenance cost is reduced.

Hereinafter, a preferred embodiment of a mold assembly according to the present invention will be described in detail with reference to the accompanying drawings.

The mold for injection molding is formed by taking out a product while the fixed side and the movable side move relative to each other, and each of the fixed core and the movable side includes a main core for forming a cavity corresponding to the shape of the product. That is, a resin in a molten state is injected into the cavity formed by the main core, and the resin is solidified by high temperature and high pressure to be finished as a product.

In the present specification, the configuration provided on the fixed side will be described.

Figure 3 is a plan view showing a template constituting a preferred embodiment of the mold assembly according to the invention, Figure 4 is shown in a separate perspective view of the configuration of the embodiment of the present invention, Figure 5 constitutes an embodiment of the present invention The connection block is shown in perspective view, and in Figure 6 is shown a perspective view of the assembled state of each component in the embodiment of the present invention.

As shown in these figures, a template 30 is provided on the stationary side of the molding machine. The template 30 is a part that is in close contact with the template provided on the movable side of the molding machine. The template 30 is formed in a substantially rectangular parallelepiped shape.

A core hole 31 is formed by penetrating the template 30 up and down with reference to FIG. 4. The main core 40 to be described later is inserted into the core hole 31. Block mounting holes 33 are formed through the template 30 laterally. In the block seating hole 33, a connection block 50 to be described later is inserted and seated.

The main core 40 inserted into the core hole 31 cooperates with the main core provided on the movable side of the molding machine to form a cavity corresponding to the shape of the product. In the present embodiment, a plurality of mounting portions 41 in which a shape core (not shown) is selectively mounted on the main core 40 are formed. In this case, the shape cores (not shown) each form a part of a cavity for forming a product. As such, it is possible to mold a plurality of products at once by mounting a plurality of shape cores on one main core.

A passage 42 (see FIG. 3) is formed through the inside of the main core 40. The flow path 42 is a portion through which a cooling fluid passes to cool the main core 40. In this embodiment, the flow passage 42 is formed around the edge of the pair of adjacent mounting portions 41. In addition, the inlet 44a and the outlet 44b of the flow passage 42 are formed in parallel with one surface 43 of the main core 40. When the cooling fluid is supplied through the inlet 44a, the cooling fluid flows along the flow path 42, thereby cooling the main core 40 and the shape core (not shown) by heat exchange, and again discharging the outlet 44b. Will come out.

A fastening hole 46 is recessed in a predetermined depth in one surface 43 of the main core 40 in which the inlet 44a and the outlet 44b are formed. The fastening hole 46 is formed at a position that does not interfere with the inlet 44a and the outlet 44b. The fastening hole 46 is a part to which a fixing bolt (not shown) for fixing the connection block 50 to be described later to the main core 40 is inserted and fastened. A thread (not shown) is formed on an inner circumferential surface of the fastening hole 46.

On the other hand, the connection block 50 is inserted into the block seating hole 33 of the template 30. The connection block 50 serves to communicate the inlet 44a and the outlet 44b with the outside. The connecting block 50 is formed in a substantially rectangular parallelepiped shape. The connection block 50 is in surface contact with one surface 43 of the main core 40 in a state of being inserted into the block seating hole 33. A plurality of communication holes 54 are formed through the inside of the connection block 50. The communication hole 54 is a portion in communication with the inlet 44a and the outlet 44b. As shown in FIG. 5, the seal seating groove 54 ′ surrounding the edge of the communication hole 54 which meets the inlet 44a and the outlet 44b is recessed. The seal member 57 is seated in the seal seating groove 54 ′.

And the connection block 50 is formed with a bolt hole 56 in communication with the fastening hole 46, respectively. The bolt hole 56 is formed at a position outside the communication hole 54. A fixing bolt (not shown) is fastened to the bolt hole 56 to fix the connection block 50 to one surface 43 of the main core 40.

The seal member 57 is provided at a portion where the inlet 44a and the outlet 44b and the communication hole 54 meet to serve to prevent leakage of the cooling fluid. The seal member 57 is preferably formed of an elastic material such as rubber. The seal member 57 is seated in a seal seating groove 54 ′ formed in the connection block 50.

On the other hand, the connection nut 58 is coupled to the communication hole 54, respectively. One end of the connection nut 58 is inserted into the communication hole 54 by a predetermined depth. At this time, a thread 58 'is formed around the outer circumferential surface of the one end of the connection nut 58 to form the communication hole 54 and the screw. Combined. The other end of the connection nut 58 is a portion to which a hose (not shown) is connected.

Hereinafter, the operation of the mold assembly according to the present invention having the configuration as described above in detail.

4 to 6 will be described the assembly process of the mold assembly according to an embodiment of the present invention.

First, as shown in FIG. 4, the main core 40 is inserted into the core hole 31 of the template 30. Then, the connecting block 50 is inserted into the block seating hole 33 of the template 30. At this time, the insertion direction of the main core 40 and the insertion direction of the connection block 50 are perpendicular to each other.

As such, when the main core 40 and the connection block 50 are installed on the template 30, one surface of the connection block 50 is in close contact with one surface 43 of the main core 40. The communication hole 54 communicates with the inlet 44a and the discharge port 44b, respectively, and the bolt hole 56 communicates with the fastening hole 46. In addition, a seal member 57 is provided at a portion that meets the communication hole 54, the inlet 44a, and the outlet 44b to prevent leakage of the cooling fluid at the connection portion.

In this state, the fixing bolt (not shown) is fastened to the bolt hole 56 of the connection block 50 and the fastening hole 46 of the main core 40, thereby connecting the connection block 50 to the main core 40. Fix it to Then, the connection nut 58 is fastened to the other side of the communication hole 54 of the connection block 50.

In the present embodiment, the main core 40 and the connection block 50 face when the communication hole 54 is connected to the inlet 44a and the discharge port 44b while the airtightness is maintained by the seal member 57. By contact. And the coupling of the connection block 50 and the main core 40 is made by a separate fixing bolt (not shown) is fastened to the bolt hole 56 and the fastening hole 46. In this case, the fastening hole 46 is formed separately from the inlet 44a and the outlet 44b, and is in a position not to interfere with each other.

Therefore, according to the present invention, since the connecting pipe is directly inserted into and coupled to the inlet and the outlet as in the prior art, damage to the inlet 44a and the outlet 44b of the main core 40 is minimized.

The scope of the present invention is not limited to the embodiments described above, but is defined by what is stated in the claims, and various changes and modifications can be made within the scope of the claims by those skilled in the art. It is self evident.

Although the template 30 is described as being provided on the fixed side in the present specification, it is not necessarily the case, and may be provided on the movable side.

1 is a plan view showing a template configuration provided in a typical mold assembly.

Figure 2 is an exploded perspective view showing the configuration of FIG.

Figure 3 is a plan view showing a template constituting a preferred embodiment of a mold assembly according to the present invention.

Figure 4 is an exploded perspective view showing the configuration of the embodiment of the present invention.

Figure 5 is a perspective view of the connecting block constituting the embodiment of the present invention from another direction.

Figure 6 is a perspective view showing the assembled state of each configuration in the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: template 31: core hole

33: block seating hole 40: main core

41: mounting portion 42: flow path

43: one side 44a: inlet

44b: discharge port 46: tightening hole

50: connecting block 54: communication hole

54 ': seal seating groove 56: bolt hole

57: sealing member 58: connecting nut

Claims

A template provided on any one of the fixed side and the movable side;

A main core provided in the template and having a passage through which a cooling fluid passes, and having an inlet and an outlet of the passage formed on one surface thereof;

It is installed to penetrate through the template, there are formed a plurality of communication holes in communication with the inlet and outlet, respectively, a bolt hole is formed in a position out of the communication hole, the fixing bolt penetrating the bolt hole is the main Mold assembly comprising a connection block is mounted by being fastened to the core.

The core hole of claim 1, wherein the main core is selectively seated by penetrating vertically through the connection block.

Through the connecting block to the side is formed a block seating hole for selectively inserting the connecting block,

Mold assembly, characterized in that the insertion direction of the main core and the insertion direction of the connection block is perpendicular to each other.

The mold according to claim 2, wherein the inlet and the outlet are communicated with the communication hole by surface contact between the connection block and the main core, and a sealing member is provided at a portion where the inlet and the discharge hole communicate with the communication hole. Assembly.

4. The mold assembly of claim 3, wherein the seal member is formed in a ring shape and is seated in a seating groove formed to be recessed around an inlet of a communication hole of the connection block.

The mold assembly according to claim 4, wherein a fastening hole for fastening the fixing bolt is formed in a predetermined depth at a position outside the inlet and the outlet of one side of the main core.

The mold assembly according to any one of claims 1 to 5, wherein the main core includes a plurality of shape cores, and the flow path is formed around an edge of the shape core.