Equilibrium two-channel flow divider plate and hot runner

Abstract

This invention provides a balanced two-channel flow divider plate and a hot runner in the field of hot runners. [Solution] The balanced two-flow channel divider plate includes a divider plate body, a main runner 20, a first sub-runner 30, a second sub-runner 40, and a valve pin runner. The main runner is provided within the divider plate body, the first sub-runner is provided within the divider plate body and is located at the outlet of the main runner and communicates with the main runner, the second sub-runner is provided within the divider plate body and is located at the outlet of the main runner and communicates with the main runner, the valve pin runner is provided within the divider plate body, the valve pin penetrates the valve pin runner, the outlets of the first sub-runner and the second sub-runner merge into the valve pin runner, and the outlets of the first sub-runner and the second sub-runner are located on either side of the valve pin.

Description

Technical Field

[0001] The present invention relates to the technical field of hot runners, and more specifically, to a balanced two-channel manifold plate and a hot runner.

Background Art

[0002] Hot runners are widely applied in the field of injection molding and are an important component of injection molds. Referring to FIGS. 1, 2, 3, 4, and 5, in the prior art, a main runner 2 and a bent runner 3 are provided in a manifold plate 1 of a hot runner. A valve pin 4 penetrates through a bent channel 3 of the manifold plate 1. When resin passes through the back surface of the valve pin 4, a retention area a exists, which is disadvantageous for color change of resin products. In addition, the resin in the main runner 2 impacts the valve pin 4 from one side at the location of the bent runner 3, causing a slight bending of the valve pin 4. As a result, an eccentric state b occurs between the tip of the valve pin 4 and the gate bushing 5 of the hot nozzle. When the valve pin 4 seals the resin, it accelerates the damage of the gate components, and the damaged gate components further cause gate burr defects on the resin product.

Summary of the Invention

[0003] The object of the present invention is to provide a balanced two-channel manifold plate and a hot runner that solve the technical problems of the prior art, namely, the existence of a retention area when resin passes through the back surface of the valve pin, and the occurrence of eccentricity between the tip of the valve pin and the gate bushing of the hot nozzle due to the impact of the resin on the valve pin from one side.

[0004] To achieve the above object, the present invention adopts the following technical solutions: In one aspect, the present invention provides a balanced two-channel manifold plate, a manifold plate body, a main runner provided in the manifold plate body, a first sub-runner provided in the manifold plate body, provided at the outlet of the main runner and communicating with the main runner, A second sub-runner is provided within the main body of the flow divider and is located at the outlet of the main runner, communicating with the main runner, The system includes a valve pin runner provided within the flow divider body, the valve pin passing through the valve pin runner, the outlets of the first sub-runner and the second sub-runner merging into the valve pin runner, and the outlets of the first sub-runner and the second sub-runner located on either side of the valve pin.

[0005] According to the above-described balanced two-flow channel divider plate, the first sub-runner and the second sub-runner exhibit point symmetry, and the outlet of the first sub-runner and the outlet of the second sub-runner are point symmetric with respect to the valve pin runner.

[0006] According to the above-described balanced two-channel flow divider plate, the shape of the first sub-runner is S-shaped, And / or, the shape of the second sub-runner is S-shaped.

[0007] According to the above-described balanced two-channel flow divider, the balanced two-channel flow divider further, A first inclined runner provided within the main body of the flow divider, wherein the outlet of the first sub-runner communicates with the first inclined runner, A second inclined runner provided within the main body of the flow divider plate, the second inclined runner having an outlet that communicates with the second inclined runner, The outlets of the first inclined runner and the second inclined runner merge into the valve pin runner.

[0008] According to the above-described balanced two-flow channel divider plate, the angle between the first inclined runner and the valve pin is 15° to 75°. And / or, the angle between the second inclined runner and the valve pin is 15° to 75°.

[0009] According to the above-described balanced two-channel flow divider, the flow divider body includes an upper flow plate and a lower flow plate, and the upper flow plate and the lower flow plate are positioned by positioning pins and then fixedly connected.

[0010] According to the above-described balanced two-channel flow divider plate, a first positioning hole and a second positioning hole are provided on the upper portion of the flow plate, and the first positioning hole and the second positioning hole are provided diagonally opposite each other. A third positioning hole and a fourth positioning hole are provided on the lower portion of the flow plate, and the third positioning hole and the fourth positioning hole are provided diagonally opposite each other. The first positioning hole and the third positioning hole are positioned and connected by the first positioning pin, and the second positioning hole and the fourth positioning hole are positioned and connected by the second positioning pin.

[0011] According to the above-described balanced two-channel flow divider plate, the upper flow plate and the lower flow plate are connected by welding.

[0012] According to the above-described balanced two-channel flow divider plate, the main runner includes an upper half main runner and a lower half main runner, the upper half main runner is provided on the upper flow plate, and the lower half main runner is provided on the lower flow plate. and / or, the first subrunner includes a first upper half subrunner and a first lower half subrunner, wherein the first upper half subrunner is provided on the upper flow plate and the first lower half subrunner is provided on the lower flow plate. and / or the second subrunner includes a second upper half subrunner and a second lower half subrunner, wherein the second upper half subrunner is provided on the upper flow plate and the second lower half subrunner is provided on the lower flow plate. and / or, the valve pin runner is provided on the lower flow plate.

[0013] In another embodiment, the present invention further provides a hot runner including the above-mentioned balanced two-channel flow divider plate, which further... An injection nozzle is provided above the balanced two-channel flow divider plate, connected to the balanced two-channel flow divider plate, and communicating with the main runner, The system includes a hot nozzle provided below the balanced two-channel flow divider and connected to the balanced two-channel flow divider, the valve pin runner communicating with the hot nozzle, and the valve pin penetrating the flow divider body and extending into the valve pin runner and the hot nozzle.

[0014] The equilibrium two-channel flow divider plate and hot runner provided by this invention have at least the following beneficial effects: (1) The balanced two-channel flow divider plate and hot runner provided by this invention have a simple structure in which the molten resin branches at the outlet of the main runner and enters the first sub-runner and the second sub-runner, respectively. The outlets of the first sub-runner and the second sub-runner are located on either side of the valve pin, and the molten resin flowing out from the first sub-runner and the second sub-runner simultaneously impacts the valve pin from both sides and enters the valve pin runner. As a result, the force received by the valve pin is balanced and even, preventing bending deformation of the valve pin. This keeps the valve pin tip and the gate bush concentric at all times, reduces wear on the hot runner parts, and consequently avoids the defect of burrs occurring in injection molded products, improving the quality of injection molded products.

[0015] (2) As the molten resin flowing out from the first sub-runner and the second sub-runner enters the valve pin runner, it balancedly impacts the valve pin from both sides of the valve pin, significantly reducing the stagnant area where the resin flows on the back surface of the valve pin. This reduction in the stagnant area improves the color change efficiency of the product in the injection molding process using a hot runner, resulting in higher color change efficiency and reduced consumption of resin material.

[0016] (3) The first and second sub-runners employ a dual sub-runner design, and the resin is filled at the branching point and enters the first and second sub-runners respectively, thereby achieving a resin flow balance effect. [Brief explanation of the drawing]

[0017] To more clearly explain the technical solutions in the embodiments of the present invention, the attached drawings that need to be used in the following description of the embodiments or the prior art will be briefly described. Obviously, the attached drawings described below are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these attached drawings without creative labor. [Figure 1] It is a schematic diagram of the internal planar structure of the flow splitter in the prior art. [Figure 2] It is a schematic diagram of the cross-sectional structure when a valve pin is attached to the flow splitter in the prior art. [Figure 3] It is a schematic diagram of the structure of the hot runner in the prior art. [Figure 4] It is an enlarged schematic diagram of the structure of part A in FIG. 3. [Figure 5] It is an enlarged schematic diagram of the structure of part B in FIG. 3. [Figure 6] It is a schematic diagram of the internal planar structure of the balanced two-channel flow splitter provided by the present invention. [Figure 7] It is a schematic diagram of the three-dimensional structure of the balanced two-channel flow splitter provided by the present invention. [Figure 8] It is a schematic diagram of the exploded structure of the balanced two-channel flow splitter provided by the present invention, part 1. [Figure 9] It is a schematic diagram of the exploded structure of the balanced two-channel flow splitter provided by the present invention, part 2. [Figure 10] It is a schematic diagram of the perspective three-dimensional structure of the balanced two-channel flow splitter provided by the present invention. [Figure 11] It is a schematic diagram of the cross-sectional structure of the hot runner provided by the present invention. [Figure 12] It is an enlarged schematic diagram of the structure of part C in FIG. 11. [Figure 13] It is a schematic diagram of the structure of the first sub-runner or the second sub-runner of the balanced two-channel flow splitter provided by the present invention. [Figure 14] It is a schematic diagram of the structure of the bent runner in the prior art. [Explanation of symbols]

[0018] 1000 Hot Runner 100 Balanced two-way flow divider plate 10 Diversion plate body 11 Upper flow plate 111 First positioning hole 112 Second positioning hole 12 Lower flow plate 121 Third positioning hole 122 Fourth positioning hole 13. First positioning pin 14. Second positioning pin 20 Main Runner 21 Upper half main runner 22 Lower half main runner 30 First Sub-runner 31. First Upper Half Sub-Runner 32. First Lower Half Sub-Runner 40. Second Sub-runner 41. Second Upper Half Sub-Runner 42. Second Lower Half Sub-Runner 50 valve pin runners 60 First Incline Runner 70 Second Incline Runner 200 valve pins 300 Injection Nozzles 400 Hot Nozzles 410 Gate Bush 2000 injection molding products [Modes for carrying out the invention]

[0019] To further clarify the technical problems, technical solutions, and beneficial effects that this invention aims to solve, the invention will be described in more detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are used solely for interpreting the invention and are not intended to limit it.

[0020] When one component is described as being "fixed" or "attached" to another component, it may be located directly or indirectly on that other component. When one component is described as being "connected" to another component, it may be connected directly or indirectly on that other component. Directions or locations indicated by terms such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside" are directions or locations based on the attached drawings and are used for illustrative purposes only and should not be construed as limiting the technical solution. The terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or the number of technical features. "Multiple" means two or more unless specifically and clearly limited.

[0021] Referring to Figures 6, 7, 8, 9, and 10, this embodiment provides a balanced two-channel flow divider 100 including a flow divider body 10, a main runner 20, a first sub-runner 30, a second sub-runner 40, and a valve pin runner 50. The main runner 20 is provided within the flow divider body 10, the first sub-runner 30 is provided within the flow divider body 10, the first sub-runner 30 is provided at the outlet of the main runner 20 and communicates with the main runner 20, the pipe diameter of the first sub-runner 30 is smaller than the pipe diameter of the main runner 20, the second sub-runner 40 is provided within the flow divider body 10, the second sub-runner 40 is provided at the outlet of the main runner 20 and communicates with the main runner 20, the pipe diameter of the second sub-runner 40 is smaller than the pipe diameter of the main runner 20, the valve pin runner 50 is provided within the flow divider body 10, the valve pin 200 penetrates the valve pin runner 50, the outlets of the first sub-runner 30 and the second sub-runner 40 merge into the valve pin runner 50, and the outlets of the first sub-runner 30 and the second sub-runner 40 are located on either side of the valve pin 200. Selectively, the pipe diameters of the first sub-runner 30 and the second sub-runner 40 are 1.2 times or less the pipe diameter of the main runner 20.

[0022] The operating principle and beneficial effects of the balanced two-channel flow divider plate 100 provided in this embodiment are as follows: (1) The balanced two-channel flow divider plate 100 provided in this embodiment has a simple structure, and the molten resin branches at the outlet of the main runner 20 and enters the first sub-runner 30 and the second sub-runner 40 respectively. The outlets of the first sub-runner 30 and the second sub-runner 40 are located on both sides of the valve pin 200, and the molten resin flowing out from the first sub-runner 30 and the second sub-runner 40 simultaneously impacts the valve pin 200 from both sides and enters the valve pin runner 50. As a result, the force received by the valve pin is balanced and even, avoiding bending deformation of the valve pin 200, maintaining a concentric state between the valve pin tip and the gate bush 410, reducing wear of hot runner parts, and consequently avoiding the defect of burrs occurring in the injection molded product 2000, thereby improving the quality of the injection molded product 2000.

[0023] (2) As the molten resin flowing out from the first sub-runner 30 and the second sub-runner 40 enters the valve pin runner 50 by balanced impacts on the valve pin 200 from both sides, the stagnant area present when the resin flow passes the back surface of the valve pin 200 is significantly reduced. This reduction in the stagnant area improves the color change efficiency of the product in the injection molding process using a hot runner, resulting in higher color change efficiency and reduced resin material consumption.

[0024] (3) The first sub-runner 30 and the second sub-runner 40 employ a dual sub-runner design, and the resin is filled at the branching position and enters the first sub-runner 30 and the second sub-runner 40 respectively, thereby achieving the effect of resin flow balance.

[0025] In one embodiment, the first sub-runner 30 and the second sub-runner 40 are point-symmetric, the outlets of the first sub-runner 30 and the second sub-runner 40 are point-symmetric with respect to the valve pin runner 50, and the outlets of the first sub-runner 30 on both sides, the outlets of the second sub-runner 40, and the axis of the valve pin 200 are on the same straight line. This allows for better avoidance of stagnation regions, better avoidance of bending deformation of the valve pin 200, ensures that the valve pin tip and the gate bush 410 are always concentric, and provides a better effect on resin flow balance by both sub-runners.

[0026] In one embodiment, the shape of the first sub-runner 30 is S-shaped, ensuring that the molten resin flows smoothly within the first sub-runner 30 and that the resin does not accumulate.

[0027] In one embodiment, the shape of the second sub-runner 40 is S-shaped, ensuring that the molten resin flows smoothly within the second sub-runner 40 and that the resin does not accumulate.

[0028] In one embodiment, the shape of the first sub-runner 30 is S-shaped, and the shape of the second sub-runner 40 is also S-shaped, ensuring that the molten resin flows smoothly within the first sub-runner 30 and the second sub-runner 40, preventing resin stagnation. Furthermore, the S-shaped first sub-runner 30 and the S-shaped second sub-runner 40 are provided point-symmetrically, further equipping the resin flow within the runners. The S-shaped first sub-runner 30 and the second sub-runner 40 have approximately the same path length between the outer runner 30a and the inner runner 30b (see Figure 13), further ensuring the resin flow balance within the runners inside the flow divider. Because the difference in path length between the outer runner 3a and the inner runner 3b of a conventional bent runner is large (see Figure 14), the resin flow balance of the S-shaped first sub-runner 30 and the second sub-runner 40 is better than that of a conventional bent runner.

[0029] In other embodiments, in one embodiment, the shape of the first sub-runner 30 is C-shaped and the shape of the second sub-runner 40 is C-shaped, ensuring that the molten resin flows smoothly within the first sub-runner 30 and the second sub-runner 40 and that the resin does not accumulate.

[0030] Furthermore, the shapes of the first sub-runner 30 and the second sub-runner 40 are not limited to the S-shape or C-shape described above, and may be other shapes; there are no restrictions here.

[0031] Selectively, the first sub-runner 30 and the second sub-runner 40 are provided axially symmetrically, so that the force with which the molten resin flowing out from both the first sub-runner 30 and the second sub-runner 40 impacts the valve pin 200 is equal, equilibrium is achieved, the balance effect of the resin flow is better, and bending deformation of the valve pin 200 is avoided.

[0032] In one embodiment, referring to Figures 10 to 12, the balanced two-flow channel diversion plate 100 further includes a first inclined runner 60 and a second inclined runner 70. The first inclined runner 60 is provided within the diversion plate body 10, and the outlet of the first sub-runner 30 communicates with the first inclined runner 60. The second inclined runner 70 is provided within the diversion plate body 10, and the outlet of the second sub-runner 40 communicates with the second inclined runner 70. The outlets of the first inclined runner 60 and the second inclined runner 70 merge within the valve pin runner 50.

[0033] By providing the first inclined runner 60, the molten resin in the first sub-runner 30 can be guided diagonally into the valve pin runner 50. By providing the second inclined runner 70, the molten resin in the second sub-runner 40 can be guided diagonally into the valve pin runner 50. By providing the first inclined runner 60 and the second inclined runner 70, it is possible to avoid excessive direct impact on the valve pins and cause deformation of the valve pins when the molten resin flows out from the outlet of the first inclined runner 60 and the outlet of the second sub-runner 40. At the same time, the flow velocity of the molten resin is made uniform and the shear inside the runner is optimized, thereby achieving a balance in resin flow and making the flow of molten resin smoother, thus avoiding situations where resin clogging occurs.

[0034] Selectively, the first inclined runner 60 and the second inclined runner 70 are provided point-symmetrically, and the outlets of the first sub-runner 30 on both sides, the outlets of the second sub-runner 40, and the axis of the valve pin 200 are on the same straight line, thereby better avoiding deformation of the valve pin and resin clogging.

[0035] In one embodiment, referring to Figure 12, the angle θ between the first inclined runner 60 and the valve pin 200 is 15° to 75°. In one embodiment, the angle θ between the second inclined runner 70 and the valve pin 200 is 15° to 75°.

[0036] In one embodiment, the angle θ between the first inclined runner 60 and the valve pin 200 is 15° to 75°, and the angle θ between the second inclined runner 70 and the valve pin 200 is θ15° to 75°. Selectively, the angle θ between the first inclined runner 60 and the valve pin 200 is 25°, and the angle θ between the second inclined runner 70 and the valve pin 200 is 25°. Note that the angles between the first inclined runner 60 and the valve pin 200, and the angles between the second inclined runner 70 and the valve pin 200 may be other, and are not limited here.

[0037] In one embodiment, referring to Figures 8 and 9, the flow divider body 10 includes an upper flow plate 11 and a lower flow plate 12, and the upper flow plate 11 and the lower flow plate 12 are positioned by positioning pins and then fixedly connected. By making the flow divider a segmented type, it becomes easy to make the runners inside the flow divider into irregular shapes.

[0038] In one embodiment, referring to Figures 8 and 9, a first positioning hole 111 and a second positioning hole 112 are provided on the upper flow plate 11, with the first positioning hole 111 and the second positioning hole 112 being diagonally opposite each other, a third positioning hole 121 and a fourth positioning hole 122 are provided on the lower flow plate 12, with the third positioning hole 121 and the fourth positioning hole 122 being diagonally opposite each other, the first positioning hole 111 and the third positioning hole 121 being positioned and connected by a first positioning pin 13, and the second positioning hole 112 and the fourth positioning hole 122 being positioned and connected by a second positioning pin 14.

[0039] By providing diagonally positioned first positioning holes 111 and second positioning holes 112, and third positioning holes 121 and fourth positioning holes 122, and further by using first positioning pins 13 and second positioning pins 14 to quickly and accurately position the upper flow plate 11 and lower flow plate 12 for stable mounting, the positioning and assembly efficiency of the flow divider plate is improved.

[0040] In one embodiment, the upper flow plate 11 and the lower flow plate 12 are connected by welding, thereby making the connection between the upper flow plate 11 and the lower flow plate 12 more stable and increasing the efficiency of diffusion welding.

[0041] In one embodiment, referring to Figures 8 and 9, the main runner 20 includes an upper half main runner 21 and a lower half main runner 22, the upper half main runner 21 is provided on the upper flow plate 11, and the lower half main runner 22 is provided on the lower flow plate 12, making it easier to mold the main runner 20.

[0042] In one embodiment, referring to Figures 8 and 9, the first sub-runner 30 includes a first upper half sub-runner 31 and a first lower half sub-runner 32, the first upper half sub-runner 31 is provided on the upper flow plate 11, and the first lower half sub-runner 32 is provided on the lower flow plate 12, making it easy to give the first sub-runner 30 an irregular shape.

[0043] In one embodiment, referring to Figures 8 and 9, the second sub-runner 40 includes a second upper half sub-runner 41 and a second lower half sub-runner 42, the second upper half sub-runner 41 is provided on the upper flow plate 11, and the second lower half sub-runner 42 is provided on the lower flow plate 12, making it easy to give the second sub-runner 40 an irregular shape.

[0044] In one embodiment, referring to Figures 10 and 12, the valve pin runner 50 is provided on the lower flow plate 12, which facilitates the molding of the valve pin runner 50.

[0045] Optionally, a valve pin mounting hole is provided on the flow divider body 10, the valve pin 200 extends through the valve pin mounting hole to the valve pin runner 50, and the valve pin 200 is mounted on the flow divider body 10 via the valve pin mounting hole.

[0046] Optionally, an injection nozzle mounting hole is provided on the flow divider body 10, the injection nozzle mounting hole communicates with the main runner 20, and the injection nozzle mounting hole is used to mount an injection nozzle 300 on the flow divider body 10, so that molten resin is injected from the injection nozzle 300 into the main runner 20.

[0047] Referring to Figure 11, this embodiment further provides a hot runner 1000 including the above-described balanced two-channel flow divider plate 100, the hot runner 1000 further including an injection nozzle 300 and a hot nozzle 400. The injection nozzle 300 is provided above the balanced two-channel flow divider plate 100 and connected to the balanced two-channel flow divider plate 100, and the injection nozzle 300 communicates with the main runner 20, the hot nozzle 400 is provided below the balanced two-channel flow divider plate 100 and connected to the balanced two-channel flow divider plate 100, the valve pin runner 50 communicates with the hot nozzle 400, and the valve pin 200 penetrates the flow divider plate body 10 and extends into the valve pin runner 50 and the hot nozzle 400. The balanced two-channel flow divider plate 100 has already been described above and will not be repeated here.

[0048] Molten resin is injected from the injection nozzle 300 into the main runner 20 of the flow divider plate. The molten resin branches at the outlet of the main runner 20 and enters the first sub-runner 30 and the second sub-runner 40, respectively. After that, it passes through the first inclined runner 60 and the second inclined runner 70, respectively, and enters the valve pin runner 50. Next, it enters the hot nozzle 400, where the valve pin 200 moves up and down within the hot nozzle 400 to form the injection-molded product 2000.

[0049] In summary, this embodiment provides a balanced two-flow channel flow divider 100 including a flow divider body 10, a main runner 20, a first sub-runner 30, a second sub-runner 40, and a valve pin runner 50. The main runner 20 is provided within the flow divider body 10, the first sub-runner 30 is provided within the flow divider body 10 and is located at the outlet of the main runner 20 and communicates with the main runner 20, the second sub-runner 40 is provided within the flow divider body 10 and is located at the outlet of the main runner 20 and communicates with the main runner 20, the valve pin runner 50 is provided within the flow divider body 10, the valve pin 200 penetrates the valve pin runner 50, the outlets of the first sub-runner 30 and the second sub-runner 40 merge into the valve pin runner 50, and the outlets of the first sub-runner 30 and the second sub-runner 40 are located on either side of the valve pin 200. This embodiment further provides a hot runner 1000 including the above-described balanced two-flow channel divider plate 100, the hot runner 1000 further including an injection nozzle 300 and a hot nozzle 400. The injection nozzle 300 is provided above the balanced two-flow channel divider plate 100 and connected to the balanced two-flow channel divider plate 100, and the injection nozzle 300 communicates with the main runner 20, the hot nozzle 400 is provided below the balanced two-flow channel divider plate 100 and connected to the balanced two-flow channel divider plate 100, the valve pin runner 50 communicates with the hot nozzle 400, and the valve pin 200 penetrates the divider plate body 10 and extends into the valve pin runner 50 and the hot nozzle 400.(1) The balanced two-flow channel divider plate 100 and hot runner 1000 provided in this embodiment have a simple structure, and the molten resin branches at the outlet of the main runner 20 and enters the first sub-runner 30 and the second sub-runner 40 respectively, and the outlets of the first sub-runner 30 and the second sub-runner 40 are located on both sides of the valve pin 200, and the molten resin flowing out from the first sub-runner 30 and the second sub-runner 40 simultaneously impacts the valve pin 200 from both sides and enters the valve pin runner 50, so that the force received by the valve pin is balanced and even, bending deformation of the valve pin 200 can be avoided, the valve pin tip and the gate bush 410 always remain concentric, wear of the hot runner parts can be reduced, defects such as burrs occurring on the injection molded product 2000 can be further avoided, and the quality of the injection molded product 2000 can be improved. (2) The molten resin flowing out from the first sub-runner 30 and the second sub-runner 40 balancedly impacts the valve pin 200 from both sides and enters the valve pin runner 50, significantly reducing the stagnant area where the resin passes over the back surface of the valve pin 200. This reduction in the stagnant area improves the color change efficiency of the product in the injection molding process using hot runners, resulting in higher color change efficiency and saving on resin material consumption. (3) The first sub-runner 30 and the second sub-runner 40 employ a dual sub-runner design, and the resin is filled at the branching position and enters the first sub-runner 30 and the second sub-runner 40 respectively, thus achieving a resin flow balance effect.

[0050] The foregoing describes only preferred embodiments of the present invention and does not limit it. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are all included within the scope of protection of the present invention.

Claims

1. The main body of the flow divider plate, The main runner provided within the aforementioned flow divider plate body, A first sub-runner is provided within the main body of the flow divider and is located at the outlet of the main runner, communicating with the main runner, A second sub-runner is provided within the main body of the flow divider and is located at the outlet of the main runner, communicating with the main runner. A balanced two-flow channel flow divider comprising a valve pin runner provided within the flow divider body, wherein a valve pin penetrates the valve pin runner, the outlets of the first sub-runner and the second sub-runner merge into the valve pin runner, and the outlets of the first sub-runner and the second sub-runner are located on either side of the valve pin.

2. The balanced two-flow channel divider according to claim 1, characterized in that the first sub-runner and the second sub-runner are point-symmetric, and the outlet of the first sub-runner and the outlet of the second sub-runner are point-symmetric with respect to the valve pin runner.

3. The shape of the first sub-runner is S-shaped, The equilibrium two-channel flow divider according to claim 1, characterized in that the shape of the second sub-runner is S-shaped.

4. The aforementioned balanced two-channel flow divider plate is A first inclined runner provided within the main body of the flow divider, wherein the outlet of the first sub-runner communicates with the first inclined runner, A second inclined runner provided within the main body of the flow divider plate, wherein the outlet of the second sub-runner communicates with the second inclined runner, The balanced two-flow channel divider according to claim 1, characterized in that the outlets of the first inclined runner and the second inclined runner merge into the valve pin runner.

5. The angle between the first inclined runner and the valve pin is 15° to 75°. The balanced two-flow channel divider according to claim 4, characterized in that and / or the angle between the second inclined runner and the valve pin is 15° to 75°.

6. The balanced two-flow channel divider according to claim 1, characterized in that the divider plate body includes an upper flow plate and a lower flow plate, and the upper flow plate and the lower flow plate are positioned by positioning pins and then fixedly connected.

7. A first positioning hole and a second positioning hole are provided on the upper portion of the flow plate, and the first positioning hole and the second positioning hole are provided diagonally opposite each other. A third positioning hole and a fourth positioning hole are provided on the lower portion of the flow plate, and the third positioning hole and the fourth positioning hole are provided diagonally opposite each other. The balanced two-channel flow divider according to claim 6, characterized in that the first positioning hole and the third positioning hole are positioned and connected by a first positioning pin, and the second positioning hole and the fourth positioning hole are positioned and connected by a second positioning pin.

8. The balanced two-flow channel divider according to claim 6, characterized in that the upper flow plate and the lower flow plate are connected by welding.

9. The main runner includes an upper half main runner and a lower half main runner, the upper half main runner is provided on the upper flow plate, and the lower half main runner is provided on the lower flow plate. and / or, the first subrunner includes a first upper half subrunner and a first lower half subrunner, wherein the first upper half subrunner is provided on the upper flow plate and the first lower half subrunner is provided on the lower flow plate. and / or the second subrunner includes a second upper half subrunner and a second lower half subrunner, wherein the second upper half subrunner is provided on the upper flow plate and the second lower half subrunner is provided on the lower flow plate. and / or, the valve pin runner is provided on the lower portion of the flow plate, characterized in that the balanced two-flow channel divider plate according to claim 6.

10. A balanced two-channel flow divider plate according to any one of claims 1 to 9, further comprising, An injection nozzle is provided above the balanced two-channel flow divider plate, connected to the balanced two-channel flow divider plate, and in communication with the main runner, A hot runner comprising a hot nozzle provided below the balanced two-flow channel divider plate, connected to the balanced two-flow channel divider plate, and communicating with the valve pin runner, wherein the valve pin penetrates the divider plate body and extends into the valve pin runner and the hot nozzle.

Images