TWM582897U - Channel structure of multilayer mold - Google Patents

Abstract

The channel structure of the multi-layer mold provided by the present invention is respectively provided with channels for gas flow in the respective mold elements constituting the mold, and on the one hand, the channels located in the adjacent mold elements are mutually connected while the mold elements are overlapped with each other. In series, on the other hand, at least one normally closed valve in the corresponding channel is opened, so that the channels connected in series are connected to each other to form a continuous passage, allowing gas to flow in the passage.

Description

Multi-layer mold channel structure

This creation is related to polymer molding dies, especially regarding the passage structure of a multilayer mold.

Mold is a widely used manufacturing equipment in the field of polymer molding processing technology, but the mold does not only provide a specific cavity space for the molding of the polymer, and it needs to be different according to different processes. The function, for example, the operation of pressurizing or depressurizing the closed cavity space, or the operation of blowing the molded product embedded in the cavity space by the air pressure in the open cavity space, etc., in the polymer processing technology Commonly, in order to introduce an external gas into the mold chamber, or to discharge the gas in the mold chamber to the outside, it is also known in the prior art to provide a passage for the gas to flow in the mold.

In the multi-layer mold technology in which a plurality of mold sheets are overlapped with each other, the mold chamber is usually an inner space between the joint interface of the mold sheet and the mold sheet, and the mold cavities respectively disposed on the different mold sheets are butted against each other. The channels for the gas flow are respectively disposed on the respective die, and the gas flow channels on the different die are independent of each other. In the prior art, the systematic gas channel design is still lacking, and the connecting pipeline between the die and the external gas source is caused. Repeated and messy.

Therefore, the main object of the present invention is to provide a channel structure of a multi-layer mold which can connect channels located in different dies, so that channels in different dies can be connected to the outside by sharing the same pipeline. Simplify the connection of the pipeline.

In order to achieve the above object, the channel structure of the multi-layer mold provided by the present invention is provided with channels for gas flow in each of the mold elements constituting the mold, and at the same time, each of the mold elements is overlapped with each other. The passages in adjacent mold elements are connected in series with each other, and on the other hand, at least one normally closed valve in the corresponding passage is opened, so that the passages connected in series communicate with each other into a continuous passage, allowing gas to flow in the passage.

Each of the mold elements has a body and a passage, and the passage is disposed on the body and has an inlet and an outlet respectively formed in at least two different positions of the body, thereby When the mold elements are overlapped with each other in a mold clamping state, the passages in the adjacent different mold elements are connected in series with one another inlet and the other outlet to connect the passages in the different mold elements.

Further, the normally closed valve can be disposed in one inlet or the other outlet in which two adjacent mold elements are connected in series, and can move between a closed position and an open position when the normally closed valve is located at the closed position. When in position, the passage of the position is blocked. Conversely, when the normally closed valve is in the open position, the passage of the position is opened to make it open.

Wherein, the normally closed valve has a valve block, which can block the passage of the position at the closed position, and an actuating body is connected with the valve block, and the adjacent mold elements are overlapped with each other to become the closed mode state. When the actuating body is pushed by the die element at the non-position and drives the valve block to move, the normally closed valve is moved from the closed position to the open position, so that the valve block releases the blocked state, so that The passage is unobstructed; in contrast, when the adjacent mold elements are separated from each other into a mold-opening state, the valve block is subjected to an elastic force of an elastic body and returns to a position where the passage is blocked.

Thereby, the normally closed valve can synchronously change the unblocking or blocking state of the channel according to the mold opening and clamping operation of the mold, without additional control, and can make the passages in the different constituent modules of the mold can be Connect to share the same external connection line.

First, referring to FIG. 1, a channel structure (10) of a multilayer mold is provided in a preferred embodiment of the present invention, which mainly includes a first mold element (20) and a second mold element (30). And a normally closed valve (40).

Referring to FIG. 1 , FIG. 4 and FIG. 5 , the first mold element ( 20 ) has a first molded body ( 21 ) having a suitable thickness and a plate shape, and a first channel (22) having a hole shape is provided. Forming a first inlet (221) on the side of the first molding body (21) and forming a first side on the bottom side of the first molding body (21). Export (222).

The second mold member (30) has a second mold body (31) of a suitable thickness and a plate shape, and a cavity (32) is recessed on the upper end surface of the second mold body (31). a second channel (33) is formed in the second body (31), and a second side of the second body (31) is formed on the upper end surface of the second body (31). An inlet (331), and at least one second outlet (not shown) are formed at appropriate locations on the pocket of the cavity (32).

The technical content of the hole shape, the extension path or the aperture size of the first channel (22) and the second channel (32) are all prior to the application according to the present invention. The technology can be completed, so it will not be clarified in the description of the case, but it is particularly pointed out and explained that the second channel (33) is from the upper end face of the second body (31). Sequentially divided into the second inlet (331), a bore section (332), a main bore section (333), and a gap between the bore section (332) and the second inlet (331) Cylindrical shoulder surface (334).

Referring to FIG. 2 and FIG. 3, the normally closed valve (40) has a block-shaped valve block (41), and an annular airtight gasket (42) is coaxially embedded in the valve block (41). On the upper end surface, a columnar actuator (43) is integrally formed coaxially on the upper end surface of the valve block (41), and is located in the annular range of the airtight gasket (42), one for compression The spring is composed of an elastic body (44) coaxially located below the bottom side end surface of the valve block (41), and the top end abuts against the valve block (41);

Referring to FIG. 4, the valve block (41) is slidably disposed in the hole section (332), and the elastic body (44) is interposed between the valve block (41) and the hole section (332). Between the walls, the valve block (41) is provided with an elastic force to abut the valve block (41) against the shoulder surface (334), and the airtight gasket (42) is clamped to the valve block (41). Between the shoulder surface (334), providing an airtight effect, the actuating body (43) is threaded into the second inlet (331), and the top end protrudes beyond the second inlet (331);

Thereby, the normally closed valve (40) can maintain the elastic force provided by the elastic body (44) as shown in FIG. 4 to maintain the resistance between the valve block (41) and the shoulder surface (334). Connected to the normally closed valve (40) in a closed position to block communication between the second inlet (331) and the bore section (332); or as shown in Figure 5, the actuator ( 43) When the top end is pressed and retracted into the second inlet (331), the valve block (41) is synchronously moved away from the shoulder surface (334), and the normally closed valve (40) is placed in an open position. The second inlet (331) is in communication with the bore section (332).

As shown in FIG. 4, when the first mold element (20) and the second mold element (30) are separated from each other and are in a mold opening state, the normally closed valve (40) is located in the closed position. Upper to block the communication between the second inlet (331) and the main hole section (334); conversely, as shown in FIG. 5, when the first mold element (20) and the second mold element (30) When being overlapped with each other in a clamping state, the opening of the cavity (32) can be closed through the first molding body (21) to become a closed cavity space, and the first outlet (222) is synchronously Cooperating with the second inlet (331) coaxially, and applying a force to the actuator (43) to move the actuator (43) from the closed position to the open position, and in the first passage (222) and the second passage (33) is connected to the second inlet (331) through the first outlet (222), and the continuous passage formed by connecting the second passage (33) is unblocked, so that the gas can be in the first passage (21) Flows between the second passage (33).

Furthermore, in order to ensure smooth flow of the gas, the actuating body (43) further includes a column extending through the second inlet (331) and having an outer diameter smaller than the second inlet (331). a plurality of notches (432) are provided on the top end of the column (431), whereby the gas is passed through the notches (432) when the normally closed valve (40) is in the open position. Entering the second inlet (331), and even though the pore diameter of the first outlet (222) is smaller than the outer diameter of the column (431), the flow of the gas is not hindered.

In addition, in order to ensure airtightness, the second mold element (30) may further include a gas-tight gasket (34) embedded on the upper end surface of the second mold body (31) and surrounding the first mold body (31). The circumferential side of the second inlet (331) is for maintaining the airtightness of the combination between the first molding body (21) and the second molding body (31) in the mold clamping state.

Moreover, in order to facilitate the installation of the normally closed valve (40), the second mold element (30) further includes an outer diameter that is similar to the aperture of the bore portion (332) and is in the form of a ring block. The body (35) is screwed and fixed in the second body (31), and the ring hole of the screw body (35) constitutes the second inlet (331), and the screw body (35) The annular surface at one end of the axial direction constitutes the shoulder surface (334), so that the normally closed valve (40) can be easily placed into the hole portion (332), and the screw body (35) is screwed and fixed to the screw body (35). The second body (31) allows for easy installation.

Finally, it should be noted that the above construction is not limited to providing gas flow and control, but may also be applied to the flow and control of other fluids required for the process.

(10) ‧‧‧Channel structure of multi-layer mould

(20) ‧‧‧ first mode components

(21)‧‧‧The first body

(22) ‧‧‧First Passage

(221)‧‧‧ first entry

(222) ‧ ‧ first exit

(30)‧‧‧Second mode components

(31) ‧‧‧Second body

(32) ‧‧‧ cavity

(33) ‧‧‧second channel

(331)‧‧‧second entrance

(332) ‧‧‧ hole section

(333)‧‧‧Main hole section

(334)‧‧‧ Shoulder

(34) ‧ ‧ airtight gasket

(35)‧‧‧Spiral body

(40) ‧‧‧Normally closed valves

(41)‧‧‧Valve blocks

(42) ‧ ‧ airtight gasket

(43) ‧‧‧acting body

(431) ‧ ‧ column

(432) ‧ ‧ gap

1 is an exploded view of a preferred embodiment of the present invention. 2 is a perspective view of some of the components of a preferred embodiment of the present invention. Figure 3 is an exploded view of some of the components of a preferred embodiment of the present invention. Fig. 4 is a cross-sectional view showing a preferred embodiment of the present invention, showing a state in which the mold is opened. Figure 5 is a cross-sectional view showing a state in which the mold is clamped, in accordance with a preferred embodiment of the present invention.

Claims (10)

A channel structure of a multilayer mold, comprising: a first mold element having a first mold body, a first passageway being disposed in the first mold body and forming a first inlet and a body on the first mold body a second mold member having a second mold body that can be overlapped with the first mold body in a mold clamping state or separated from the first mold body to form a mold opening state a second passage is disposed in the second body and defines a second inlet and a second outlet on the second mold; a normally closed valve is disposed on the second mold and located at the second inlet In order to maintain the closed state of the second inlet, an actuation system is disposed at the first outlet projecting in the range of the second mold element and facing the first mold element, and is movable between a closed position and an open position. Having the normally closed valve block the second inlet when in the closed position, and opening the normally closed valve to the second inlet when in the open position; thereby, in the mold opening state, The actuation system is located in the closed position, and in the closed state, In addition to connecting the first outlet and the second inlet to each other, and causing the actuating body to be pressed by the first molding body, moving from the closed position to the open position to open the second inlet to enable the first outlet The first passage and the second passage communicate with each other via the first outlet and the second inlet. The channel structure of the multi-layer mold of claim 1, wherein the second channel is sequentially separated from the second inlet into the second inlet, a hole segment, and a hole between the hole and the hole. a shoulder surface between the second inlets, and the normally closed valve in the closed position abuts the shoulder surface at a predetermined portion to block communication between the second inlet and the bore portion. The channel structure of the multilayer mold of claim 2, wherein the normally closed valve system further comprises a valve block slidably disposed in the bore section, and a elasticity between the valve block and the bore wall of the bore section And the elastic body is provided with an elastic force acting on the valve block, so that the valve block elastically abuts against the shoulder surface to block the communication between the second inlet and the bore portion. The channel construction of the multilayer mold of claim 3, wherein the actuation system extends into the second inlet and is coupled to the valve block. The channel structure of the multi-layer mold according to claim 4, wherein the actuation system further comprises a column, wherein one end of the column shaft is combined with the valve block, and the other end of the column shaft faces the first mold element, at least one notch system Opened at the other end of the column. The channel construction of the multilayer mold of claim 5, wherein when the normally closed valve is in the closed position, the other end of the column protrudes beyond the second inlet. The channel construction of the multilayer mold of claim 5, wherein the actuation system is integrally formed with the valve block. The channel construction of the multilayer mold of claim 3, wherein the elastic system is a spring. The channel structure of the multilayer mold of claim 3, wherein the normally closed valve system further comprises a hermetic gasket embedded in a side block surface of the valve block facing the shoulder surface. The channel structure of the multilayer mold of claim 2, wherein the second mold element further comprises a hermetic gasket embedded in the second mold and surrounding the circumferential side of the second inlet.