TW201637806A - Split flow adjustment structure - Google Patents

Abstract

A split flow adjustment structure is installed in a plastic molding machine to adjust the flow rate of plastics in the die head, in which comprises a movable ring and a diverter head arranged in a seat body. The movable ring can be displaced by a driving member, and an annular through-hole formed between the diverter head and the mouth portion of the movable ring, for uniformly feeding the plastics around the diverter head and entering into a cavity. The diverter head in the mouth portion has a cross-sectional area that can be adjusted by a displacement of the movable ring driven using the driving member, thereby the invention is constituted.

Description

Split flow adjustment structure

The invention relates to a plastic molding machine, in particular to a split flow regulating structure.

As shown in Fig. 6, the discharge structure of the conventional plastic molding machine is mainly provided in the discharge module 9 with a first-class passage 91 for circulating molten plastic, and the plastic is after entering the flow passage 91. A splitter head 92 is passed through which the splitter head 92 passes the plastic to form a tubular shape for forming in the mold. A flow regulating member 93 is formed in the discharge module 9, and the flow regulating member 93 extends from the side of the discharging module 9 into the flow passage 91, and the flow regulating member 93 can be adjusted to extend into the flow passage 91. The length, thereby adjusting the diameter through which the plastic can pass through the flow passage 91, thereby adjusting the flow rate of the plastic.
However, in the discharge structure of the plastic molding machine, the flow regulating member 93 extends from the side of the discharge module 9 into the flow passage 91, and although the diameter of the plastic in the flow passage 91 can be adjusted, However, the molten plastic has a relatively viscous property, and the portion in which the flow passage 91 is formed to allow the plastic to pass is only on one side, so that the plastic does not uniformly pass through the flow passage 91 when flowing toward the splitter 92, so that the plastic passes through the splitter 92. When it is made into a tubular shape, it also causes unevenness, which causes a problem that the finished product has bubbles or bending deformation due to lack of material.
Moreover, in the discharge structure of the conventional plastic molding machine, there are usually multiple sets of discharge modules 9 (as shown in Fig. 7), and when the above problems occur, the discharge modules of each group must be The flow regulating member 93 is finely adjusted one by one until the discharging is normal, and the fine adjustment action is complicated and the process is time consuming, thus also causing the problem of inefficiency in the process due to delay.
Therefore, how to solve the problem of the above-mentioned conventional flow adjustment structure is the focus of the present invention.

The main object of the present invention is to solve the above problems and to provide a shunt flow adjusting structure, which avoids the problem that the finished product has bubbles or bending deformation due to lack of material, and further solves the problem of inefficiency in the process.
The split flow adjustment structure of the present invention is installed in a plastic molding machine for adjusting the flow rate of the plastic in the discharge module. For the purposes of the foregoing, the present invention includes:
a body, disposed in the discharge module, having an annular hollow shape and having a through hole extending in the axial direction;
An active ring is disposed at a front end of the through hole of the seat body and is axially displaceable in the through hole. The movable ring is also annularly hollow and has a flow passage extending in the axial direction, and one end of the movable ring is a hole in the perforation for outputting plastic through the flow passage;
a splitter head is disposed at a rear portion of the through hole of the seat body, the splitter head is aligned with the flow path of the movable ring and is located in the mouth thereof, and the through hole defines a chamber around the splitter head, and Forming an annular through hole between the splitting head and the mouth for the passage of plastic to enter the chamber;
a driving member extending from the inside of the housing and connecting the movable ring to axially displace the movable ring in the through hole, and adjusting the sectional area of the annular through hole when the splitting head is in the mouth .
Wherein, the mouth of the movable ring is a tapered surface which is gradually expanded from the inside to the outside on the inner wall of the flow channel.
Wherein, the shape of the shunt head corresponds to the inner wall of the tapered surface and is a conical head.
Wherein, the seat body is provided with a positioning member, and the positioning member has a hollow guide post extending axially in the seat body, the movable ring is axially displaceably sleeved on the guide post, and the movable ring flow passage Formed in the hollow portion of the guide post. .
Wherein, the driving member is a plurality of rods, one end of each rod body is extended into the seat body and coupled to the movable ring, and each rod body is combined with an urging block at one end of the outer body of the housing, and the driving block can be driven In the aforementioned axial displacement.
Wherein, the driving block has an inner screw hole, and the discharging module is provided with a screw that can be pivoted in situ at a position of the driving block, and the driving block is screwed on the screw with the inner screw hole thereof, and the screw Rotating to drive the axial displacement of the urging block.
The above and other objects and advantages of the present invention will be readily understood from
Of course, the invention may be varied on certain components, or in the arrangement of the components, but the selected embodiments are described in detail in the specification and their construction is shown in the drawings.

(customized part)
9‧‧‧Drawing module
91‧‧‧ flow path
92‧‧‧Split
93‧‧‧Flow adjustments (part of the invention)
1‧‧‧Drawing module
2‧‧‧ body
21‧‧‧Perforation
211‧‧‧
212‧‧‧After
22‧‧‧ Positioning parts
221‧‧‧ Guide column
23‧‧‧ chamber
24‧‧‧Circular through hole
3‧‧‧ Activity ring
31‧‧‧ flow path
32‧‧‧ mouth
321‧‧‧ inner wall
4‧‧‧Split
5‧‧‧ rod body
6‧‧‧ 引动块
61‧‧‧Inner hole
7‧‧‧ screw

Figure 1 is a cross-sectional structural view of a section of the discharge module of the present invention in a split flow adjustment structure.
Fig. 2 is a perspective external view of the split flow regulating structure of the present invention.
Fig. 3 is an exploded configuration view of the split flow adjustment structure of the present invention.
Fig. 4 is a cross-sectional structural view showing a large annular through hole before the adjustment of the split flow regulating structure of the present invention.
Figure 5 is a cross-sectional structural view of the split flow regulating structure of the present invention having a smaller annular through hole after adjustment.
Figure 6 is a cross-sectional structural view of a conventional discharge module in a section having a split flow adjustment structure.
Figure 7 is a cross-sectional structural view of a plurality of sets of discharge modules of a conventional plastic molding machine.

Referring to Figures 1 through 5, the structure of the embodiment selected for use in the present invention is for illustrative purposes only and is not limited by such structure in the patent application.
The embodiment provides a split flow adjustment structure that is installed in a plastic molding machine for adjusting the flow rate of the plastic in the discharge module. As shown in FIG. 1 , the split flow adjustment structure of the embodiment includes a body 2 , an active ring 3 , a splitter 4 and a driver in the discharge module 1 , wherein the second to third As shown in the figure, the seat body 2 disposed in the discharge module 1 is annularly hollow and has a through hole 21 penetrating in the axial direction. In this embodiment, the base body 2 is provided with a positioning member 22, and the positioning member 22 defines a hollow guide post 221 in the axial direction of the base body 2.
As shown in the second embodiment, the movable ring 3 is disposed in the front section 211 of the through hole 21 of the base body 2, and is axially displaceable in the through hole 21. The movable ring 3 is also annularly hollow and has an axis. The flow path 31 is penetrated, and one end of the movable ring 3 has a mouth 32 in the through hole 21, and the mouth 32 is used for outputting plastic through the flow path 31. In the present embodiment, the mouth 32 of the movable ring 3 is a tapered surface which is gradually expanded from the inside to the outside, and the movable ring 3 is axially displaced on the guide post 221 . And the flow path 31 of the movable ring 3 is formed at a hollow portion of the guide post 221 .
As shown in Figures 2 to 3, the splitter head 4 is disposed in the rear section 212 of the through hole 21 of the seat body 2, the splitter head 4 is aligned with the flow path 31 of the movable ring 3 and is located in the mouth 32 thereof. A chamber 23 is formed around the shunt head 4, and an annular through hole 24 is formed between the shunt head 4 and the mouth portion 32. The annular through hole 24 allows plastic to pass through into the chamber 23. In the present embodiment, the shape of the shunt head 4 corresponds to the inner wall 321 of the tapered surface and is a tapered head.
The above-mentioned driving member is extended into the seat body 2 and coupled to the movable ring 3 to drive the movable ring 3 to axially displace in the through hole 21, and adjust the shunt head 4 in the mouth portion 32. The size of the cross-sectional area of the annular through hole 24. As shown in the second to third figures, the driving member is a plurality of rods 5, one end of each rod body 5 is extended into the seat body 2 to join the movable ring 3, and each rod body 5 is in the seat body 2 The outer end is coupled to an urging block 6, which can be driven to the aforementioned axial displacement. In detail, the driving block 6 has an inner screw hole 61. The discharging module 1 is provided with a screw 7 which can be pivoted in situ at the position of the driving block 6, and the driving block 6 has a screw hole 61 therein. A screw is provided on the screw 7, and the screw 7 is rotated to drive the driving block 6 to axially displace.
As shown in Fig. 4, the cross-sectional area of the annular through hole 24 in the base 2 has a size as shown in the figure. If the cross-sectional area of the annular through hole 24 is to be adjusted to be small, as shown in Fig. 5. The rotation of the screw 7 drives the driving block 6 to be axially displaced. At this time, the rod body 5 drives the movable ring 3 in the seat body 2 to be axially displaced downward along with the urging block 6, so that the mouth formed in the movable ring 3 is formed. The cross-sectional area of the annular through hole 24 between the portion 32 and the shunt head 4 becomes smaller; if the screw 7 is rotated in the opposite direction, the rod body 5 drives the movable ring in the seat body 2 with the urging block 6 at this time. 3 When the axial displacement is upward, the cross-sectional area of the annular through hole 24 can be made larger.
From the above description, it is not difficult to find that the present invention has an advantage that the annular through hole 24 formed between the mouth 32 of the movable ring 3 and the splitter head 4 allows the plastic to pass uniformly, and the cut of the annular through hole 24 can be adjusted. The size of the area is such that, compared with the discharge structure of the conventional plastic molding machine, the problem that the finished product has bubbles or bending deformation due to lack of material can be avoided, and when the plurality of sets of discharge modules 1 are present, It is still necessary to fine-tune the discharge modules of each group one by one until the discharge is normal, but as can be seen from the above, the fine adjustment action is simple and the process is fast, so that there is no delay in the process, so that the process efficiency is not solved. The problem of Zhang.
The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention.
From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objects and is in accordance with the provisions of the Patent Law.

1‧‧‧die

2‧‧‧ body

21‧‧‧Perforation

22‧‧‧ Positioning parts

221‧‧‧ Guide column

23‧‧‧ chamber

24‧‧‧Circular through hole

3‧‧‧ Activity ring

31‧‧‧ flow path

32‧‧‧ mouth

321‧‧‧ inner wall

4‧‧‧Split

5‧‧‧ rod body

6‧‧‧ 引动块

7‧‧‧ screw

Claims (6)

[Item 1] A split flow adjustment structure is installed in a plastic molding machine for adjusting the flow rate of plastic in the discharge module, including:
a body, disposed in the discharge module, having an annular hollow shape and having a through hole extending in the axial direction;
An active ring is disposed at a front end of the through hole of the seat body and is axially displaceable in the through hole. The movable ring is also annularly hollow and has a flow passage extending in the axial direction, and one end of the movable ring is a hole in the perforation for outputting plastic through the flow passage;
a splitter head is disposed at a rear portion of the through hole of the seat body, the splitter head is aligned with the flow path of the movable ring and is located in the mouth thereof, and the through hole defines a chamber around the splitter head, and Forming an annular through hole between the splitting head and the mouth for the passage of plastic to enter the chamber;
a driving member extending from the inside of the housing and connecting the movable ring to axially displace the movable ring in the through hole, and adjusting the sectional area of the annular through hole when the splitting head is in the mouth . [Item 2] The split flow adjustment structure according to claim 1, wherein the mouth of the movable ring is a tapered surface that is gradually expanded from the inside to the outside. [Item 3] The split flow regulating structure according to claim 2, wherein the shape of the splitter head corresponds to the inner wall of the tapered surface and is a tapered head. [Item 4] The split flow adjustment structure according to claim 1, wherein the seat body is provided with a positioning member, and the positioning member has a hollow guide post extending axially in the seat body, and the movable ring can be axially displaced. In the guide post, the flow path of the movable ring is formed at a hollow portion of the guide post. [Item 5] The shunt flow regulating structure according to claim 4, wherein the driving member is a plurality of rods, one end of each rod body is extended into the seat body to join the movable ring, and each rod body is outside the seat body. One end is coupled to an urging block that can be driven to the aforementioned axial displacement. [Item 6] The shunt flow adjusting structure according to claim 5, wherein the driving block has an inner screw hole, and the discharging module is provided with a screw that can be pivoted in place at a position of the driving block, wherein the driving block has a screw The inner screw hole is screwed on the screw, and the screw is driven to drive the urging block to axially displace.