Balanced dual-channel manifold and hot runner

Abstract

Balanced two-channel distribution board, characterized in that it comprises the following: a distribution plate body; a main channel located in the manifold body; a first distribution channel arranged in the distributor plate body, wherein the first distribution channel is arranged at an outlet of the main channel and is connected to the main channel; a second distribution channel arranged in the distributor plate body, wherein the second distribution channel is arranged at an outlet of the main channel and is connected to the main channel; a valve pin channel arranged in the distributor plate body, wherein a valve pin passes through the valve pin channel, and wherein an outlet of the first distributor channel and an outlet of the second distributor channel converge in the valve pin channel, and wherein the outlet of the first distributor channel and the outlet of the second distributor channel are located on both sides of the valve pin.

Description

TECHNICAL AREA

[0001] The present utility model relates to the technical field of hot runners, in particular a balanced two-channel manifold plate and a hot runner. STATE OF THE ART

[0002] Hot runners are widely used in injection molding and are an important component of injection molds. With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. In existing technologies, a main channel 2 and a curved channel 3 are arranged in the distributor plate 1 of the hot runner system. The valve pin 4 passes through the curved channel 3 of the distributor plate 1. When the plastic material flows through the back of the valve pin 4, a retention zone a is created, which adversely affects color changes in plastic products. Furthermore, the plastic material in the main channel 2 impinges on the valve pin 4 at the curved channel 3 on one side, causing the valve pin 4 to bend slightly. This results in a non-concentric condition b between the head of the valve pin 4 and the sprue sleeve 5 of the hot runner system. This accelerates damage to the sprue assembly during valve pin 4 closure, and a damaged sprue assembly can lead to flash defects on the plastic product. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The present utility model aims to provide a balanced two-channel distributor plate and hot runner to solve the prior art technical problems that, when the plastic material flows through the back of the valve pin, a retention zone is created, and the plastic material impacts the valve pin on one side, causing a non-concentric condition between the head of the valve pin and the sprue sleeve of the hot nozzle.

[0004] To achieve the above objective, the present utility model uses the following technical solution: In one aspect, the present utility model provides a balanced two-channel distribution board, comprising the following: a distribution plate body; a main channel located in the manifold body; a first distribution channel arranged in the distributor plate body, wherein the first distribution channel is arranged at an outlet of the main channel and is connected to the main channel; a second distribution channel arranged in the distributor plate body, wherein the second distribution channel is arranged at an outlet of the main channel and is connected to the main channel; a valve pin channel arranged in the distributor plate body, wherein a valve pin passes through the valve pin channel, and wherein an outlet of the first distributor channel and an outlet of the second distributor channel converge in the valve pin channel, and wherein the outlet of the first distributor channel and the outlet of the second distributor channel are located on both sides of the valve pin.

[0005] According to the above-mentioned balanced two-channel distributor plate, the first distributor channel and the second distributor channel are arranged centrally symmetrically, with the outlet of the first distributor channel and the outlet of the second distributor channel being arranged centrally symmetrically with respect to the valve pin channel.

[0006] According to the above-mentioned balanced two-channel distribution plate, the first distribution channel is S-shaped; and / or wherein the second distribution channel is S-shaped.

[0007] According to the above-mentioned balanced two-channel distribution board, the balanced two-channel distribution board further comprises the following: a first inclined channel arranged in the distributor plate body, wherein the outlet of the first distributor channel is connected to the first inclined channel; a second inclined channel arranged in the distributor plate body, wherein the outlet of the second distributor channel is connected to the second inclined channel; wherein an outlet of the first inclined channel and an outlet of the second inclined channel converge in the valve pin channel.

[0008] According to the above-mentioned balanced two-channel distributor plate, the first inclined channel and the valve pin enclose an angle of 15° to 75°; and / or wherein the second inclined channel and the valve pin enclose an angle of 15° to 75°.

[0009] According to the above-mentioned balanced two-channel distributor plate, the distributor plate body comprises an upper distributor plate and a lower distributor plate, wherein the upper distributor plate and the lower distributor plate are positioned via a positioning pin and then firmly connected to each other.

[0010] According to the above-mentioned balanced two-channel distributor plate, the upper distributor plate is provided with a first positioning hole and a second positioning hole, wherein the first positioning hole and the second positioning hole are arranged diagonally; wherein the lower distributor plate is provided with a third positioning hole and a fourth positioning hole, and wherein the third positioning hole and the fourth positioning hole are arranged diagonally; wherein the first positioning hole and the third positioning hole are positioned and connected to each other via a first positioning pin, while the second positioning hole and the fourth positioning hole are positioned and connected to each other via a second positioning pin.

[0011] According to the above-mentioned balanced two-channel distributor plate, the upper distributor plate and the lower distributor plate are connected to each other by welding.

[0012] According to the above-mentioned balanced two-channel distributor plate, the main channel comprises an upper half of the main channel and a lower half of the main channel, with the upper half of the main channel being located on the upper distributor plate and the lower half of the main channel being located on the lower distributor plate; and / or wherein the first distribution channel comprises a first upper half of the distribution channel and a first lower half of the distribution channel, wherein the first upper half of the distribution channel is arranged on the upper distribution plate and the first lower half of the distribution channel is arranged on the lower distribution plate; and / or wherein the second distribution channel comprises a second upper half of the distribution channel and a second lower half of the distribution channel, wherein the second upper half of the distribution channel is arranged on the upper distribution plate and the second lower half of the distribution channel is arranged on the lower distribution plate; and / or wherein the valve pin channel is located on the lower distributor plate.

[0013] In another aspect, the present utility model further provides a hot runner comprising a balanced two-channel manifold plate as described above, and further comprising the following: an injector nozzle arranged above and connected to the balanced two-channel distributor plate, the injector nozzle being connected to the main channel; a hot nozzle arranged below and connected to the balanced two-channel distributor plate, wherein the valve pin channel is connected to the hot nozzle, and wherein the valve pin passes through the distributor plate body and extends into the valve pin channel and the hot nozzle.

[0014] The balanced dual-channel manifold and hot runner provided by the present utility model have at least the following advantages: (1) The balanced two-channel manifold plate and hot runner provided by the present utility model have a simple structure. The molten plastic material branches out at the outlet of the main channel to enter the first manifold channel and the second manifold channel, respectively. The outlet of the first manifold channel and the outlet of the second manifold channel are located on either side of the valve stem. The molten plastic material flowing from the first and second manifold channels impacts the valve stem simultaneously from both sides before entering the valve stem channel. This ensures a balanced and uniform distribution of force on the valve stem and prevents bending or deformation of the valve stem. Consequently, the valve stem head and the sprue sleeve remain concentric at all times, thus reducing wear on the hot runner components.This approach avoids flash defects in the injection-molded product and thus improves the product quality of the injection-molded product. (2) Since the molten plastic material flowing from the first distributor channel and the second distributor channel impacts the valve pin symmetrically on both sides before entering the valve pin channel, retention zones that would otherwise form as the plastic material flows through the back of the valve pin are significantly reduced. This reduction in retention zones improves the efficiency of color changes during hot runner injection molding, resulting in higher product color change efficiency and reduced plastic consumption. (3) The first distribution channel and the second distribution channel use a dual-channel design. When the plastic material fills the branch point and enters the first distribution channel and the second distribution channel separately, a balanced distribution of the plastic is achieved. BRIEF DESCRIPTION OF THE DRAWING

[0015] To clarify the technical solution in the embodiments of this utility model, the drawings to be used in the explanation of the embodiments or the prior art are briefly presented below. Obviously, the accompanying drawings described below show only some embodiments of this utility model. A person skilled in the art in this field can, provided no creative work is involved, derive other drawings from these accompanying drawings. Fig. Figure 1 shows a schematic top view of the internal structure of a conventional distribution plate; Fig. Figure 2 shows a schematic cross-sectional view of a conventional manifold plate with a valve pin installed on it; Fig. Figure 3 shows a schematic diagram of the structure of a conventional hot runner; Fig. Figure 4 shows a schematic diagram of the enlarged structure of section A in Fig. 3; Fig. Figure 5 shows a schematic diagram of the enlarged structure of section B in Fig. 3; Fig. Figure 6 shows a schematic top view of the internal structure of a balanced two-channel distributor plate provided by the present utility model; Fig. Figure 7 shows a schematic diagram of the three-dimensional structure of a balanced two-channel distributor plate provided by the present utility model; Fig. Figure 8 shows a first schematic diagram of an exploded structure of a balanced two-channel distributor plate provided by the present utility model; Fig. Figure 9 shows a second schematic diagram of an exploded structure of a balanced two-channel distributor plate provided by the present utility model; Fig. Figure 10 shows a perspective schematic diagram of the three-dimensional structure of a balanced two-channel distributor plate provided by the present utility model; Fig. Figure 11 shows a schematic cross-sectional view of a hot runner provided by the present utility model; Fig. Figure 12 shows a schematic diagram of the enlarged structure of section C in Fig. 11; Fig. Figure 13 shows a schematic diagram of the structure of a first distribution channel or second distribution channel of the balanced two-channel distribution board provided by the present utility model; Fig. Figure 14 shows a schematic diagram of the structure of a conventional curved channel. Reference symbol list 1000 hot runner 100 Balanced dual-channel distribution board 10 distribution plate bodies 11 Upper distribution plate 111 First positioning hole 112 Second positioning hole 12 Lower distribution plate 121 Third positioning hole 122 Fourth positioning hole 13 First positioning pin 14 Second positioning pin 20 Main Channel 21 Upper half of the main canal 22 Lower half of the main channel 30 First distribution channel 31 First upper half of the distribution channel 32 First lower half of the distribution channel 40 Second distribution channel 41 Second upper half of the distribution channel 42 Second lower half of the distribution channel 50 Valve pin channel 60 First inclined channel 70 Second inclined channel 200 valve pin 300 injector nozzle 400 Hot nozzle 410 Sprue sleeve 2000 injection molded product DETAILED DESCRIPTION

[0016] In conjunction with the accompanying drawings and embodiments, the present utility model is explained in more detail below to clarify the technical problem to be solved, the technical solutions, and the advantages of the present utility model. It is understood that the specific embodiments described here serve only to illustrate the present utility model, rather than to limit its scope.

[0017] It should be noted that when a component is described as being "attached" or "arranged" on another component, the component may be located directly or indirectly on top of the other component. When a component is described as being "connected" to another component, the component may be connected directly or indirectly to the other component. The terms "top," "bottom," "left," "right," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," "outside," and similar indications of direction or position are based on the orientation or position in the accompanying drawings and are used for descriptive purposes only. They are not to be construed as limiting the scope of the technical solution presented.The terms "first" and "second" are used solely for the sake of simplicity and are not to be understood as indicating or suggesting any relative significance or as an indication of the number of technical features. "Several" refers to two or more, unless explicitly stated otherwise.

[0018] With reference to the Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Fig. Figure 10 provides a balanced two-channel distributor plate 100, comprising a distributor plate body 10, a main channel 20, a first distributor channel 30, a second distributor channel 40, and a valve pin channel 50. The main channel 20 is arranged in the distributor plate body 10; wherein the first distributor channel 30 is arranged in the distributor plate body 10, and wherein the first distributor channel 30 is arranged at an outlet of the main channel 20 and is connected to the main channel 20, and wherein the pipe diameter of the first distributor channel 30 is smaller than that of the main channel 20; wherein the second distributor channel 40 is arranged in the distributor plate body 10, and wherein the second distributor channel 40 is arranged at an outlet of the main channel 20 and is connected to the main channel 20, and wherein the pipe diameter of the second distributor channel 40 is smaller than that of the main channel 20;wherein the valve pin channel 50 is arranged in the distributor plate body 10, and wherein a valve pin 200 passes through the valve pin channel 50, and wherein an outlet of the first distributor channel 30 and an outlet of the second distributor channel 40 converge in the valve pin channel 50, and wherein the outlet of the first distributor channel 30 and the outlet of the second distributor channel 40 are located on both sides of the valve pin 200. Optionally, the pipe diameter of the first distributor channel 30 and the pipe diameter of the second distributor channel 40 are not greater than 1.2 times the pipe diameter of the main channel 20.

[0019] The working principle and advantages of the balanced two-channel distributor plate 100 provided by the present embodiment are as follows: (1) The balanced two-channel distributor plate 100 provided by the present embodiment has a simple structure. The molten plastic material branches out at the outlet of the main channel 20 to enter the first distributor channel 30 and the second distributor channel 40, respectively. The outlet of the first distributor channel 30 and the outlet of the second distributor channel 40 are located on both sides of the valve pin 200. The molten plastic material flowing from the first distributor channel 30 and the second distributor channel 40 impacts the valve pin 200 simultaneously from both sides before entering the valve pin channel 50. This ensures a balanced and uniform force distribution on the valve pin 200 and prevents bending or deformation of the valve pin 200.Consequently, the valve pin head and the sprue sleeve 410 remain concentric at all times, thus reducing wear on the hot runner components. This approach prevents flash defects in the injection-molded product 2000 and therefore improves the product quality of the injection-molded product 2000. (2) Since the molten plastic material flowing from the first distributor channel 30 and the second distributor channel 40 impacts the valve pin 200 symmetrically on both sides of the valve pin 2000 before entering the valve pin channel 50, retention zones that form when the plastic material flows through the back of the valve pin 200 are significantly reduced. The reduction of these retention zones improves the efficiency of the color change during hot runner injection molding, resulting in higher product color change efficiency and reduced plastic consumption. (3) The first distribution channel 30 and the second distribution channel 40 use a dual-channel design. When the plastic material fills the branch point and enters the first distribution channel 30 and the second distribution channel 40 separately, a balanced plastic distribution is achieved.

[0020] In one embodiment, the first distributor channel 30 and the second distributor channel 40 are arranged centrally symmetrically, with the outlet of the first distributor channel 30 and the outlet of the second distributor channel 40 being arranged centrally symmetrically with respect to the valve pin channel 50. The outlets of both the first distributor channel 30 and the second distributor channel 40 lie on the same straight line as the axis of the valve pin 200. This configuration effectively minimizes retention zones, prevents bending and deformation of the valve pin 200, and ensures that the head of the valve pin and the sprue sleeve 410 remain concentric at all times, thereby improving the balanced plastic distribution of the dual distributor channel system.

[0021] In one embodiment, the first distribution channel 30 is S-shaped, which ensures an unimpeded flow of the molten plastic material within the first distribution channel 30 and prevents an accumulation of the plastic material.

[0022] In one embodiment, the second distribution channel 40 is S-shaped, which ensures an unimpeded flow of the molten plastic material within the second distribution channel 40 and prevents an accumulation of the plastic material.

[0023] In one embodiment, both the first distribution channel 30 and the second distribution channel 40 are S-shaped. This configuration ensures that the molten plastic material flows smoothly within the first distribution channel 30 and the second distribution channel 40, thus preventing any plastic material from being retained. Furthermore, the S-shaped first distribution channel 30 and the S-shaped second distribution channel 40 are arranged in a centrally symmetrical configuration, which allows for a more balanced distribution of the plastic within the channels. The S-shaped first distribution channel 30 and second distribution channel 40 are designed such that the path lengths of the outer channel side 30a and the inner channel side 30b are approximately equal (see Figure 3). Fig. 13), which further ensures a balanced plastic distribution within the distribution plate. In contrast, the path lengths of the outer channel side 30a and the inner channel side 30b of the conventional curved channel exhibit significant differences in length (see Fig. 14). Consequently, the use of the S-shaped first distribution channel 30 and second distribution channel 40 results in a more balanced plastic distribution than with conventional curved channels.

[0024] In one embodiment, both the first distribution channel 30 and the second distribution channel 40 are C-shaped. This configuration ensures that the molten plastic material flows smoothly within the first distribution channel 30 and the second distribution channel 40, thus preventing an accumulation of the plastic material.

[0025] It is understood that the shapes of the first distribution channel 30 and the second distribution channel 40 are not limited to the S-shape or C-shape mentioned above, but can also take on other shapes, which is not limited here.

[0026] Optionally, the first distribution channel 30 and the second distribution channel 40 are arranged axially symmetrically, thereby ensuring that the force exerted on the valve pin 200 by the molten plastic material flowing from the first distribution channel 30 and the second distribution channel 40 on both sides is equal, thus improving the balanced plastic distribution to prevent bending and deformation of the valve pin 200.

[0027] In one embodiment, the balanced two-channel distribution plate comprises 100 with reference to Fig. 10, Fig. 11 to Fig. 12 further comprising a first inclined channel 60 and a second inclined channel 70. The first inclined channel 60 is arranged in the distributor plate body 10, wherein the outlet of the first distributor channel 30 is connected to the first inclined channel 60; wherein the second inclined channel 70 is arranged in the distributor plate body 10, and wherein the outlet of the second distributor channel 40 is connected to the second inclined channel 70; and wherein an outlet of the first inclined channel 60 and an outlet of the second inclined channel 70 converge in the valve pin channel 50.

[0028] The arrangement of the first inclined channel 60 allows the molten plastic material within the first distributor channel 30 to be directed at an angle into the valve pin channel 50; the arrangement of the second inclined channel 70 allows the molten plastic material within the second distributor channel 40 to be directed at an angle into the valve pin channel 50; and the arrangement of the first inclined channel 60 and the second inclined channel 70 avoids excessive direct impact of the molten plastic material exiting the outlet of the first inclined channel 60 or the outlet of the second distributor channel 40 onto the valve pin, thus preventing deformation of the valve pin, while simultaneously ensuring a uniform flow rate of the molten plastic material and optimizing the shear within the channels to achieve a balanced plastic distribution.which makes the flow of the molten plastic material smoother, thus preventing clogging of the plastic material.

[0029] Optionally, the first inclined channel 60 and the second inclined channel 70 are arranged centrally symmetrically, and the outlets of both the first distributor channel 30 and the second distributor channel 40 lie together with the axis of the valve pin 200 on the same straight line to better avoid deformation of the valve pin and clogging of the plastic material.

[0030] In one embodiment, the second inclined channel 60 and the valve pin 200 close with reference to Fig. 12. Set an angle θ of 15° to 75°; In one embodiment, the second inclined channel 70 and the valve pin 200 enclose an angle θ of 15° to 75°.

[0031] In one embodiment, the first inclined channel 60 and the valve pin 200 enclose an angle θ of 15° to 75°, while the second inclined channel 70 and the valve pin 200 enclose an angle θ of 15° to 75°. Optionally, the first inclined channel 60 and the valve pin 200 enclose an angle θ of 25°, while the second inclined channel 70 and the valve pin 200 enclose an angle θ of 25°. It is understood that the angle between the first inclined channel 60 and the valve pin 200, as well as the angle between the second inclined channel 70 and the valve pin 200, can also have other configurations, which is not limited here.

[0032] In one embodiment, the distributor plate body 10 comprises, with reference to Fig. 8 and Fig. 9 an upper distribution plate 11 and a lower distribution plate 12, wherein the upper distribution plate 11 and the lower distribution plate 12 are positioned via a positioning pin and then firmly connected to each other. The split design of the distribution plate facilitates the formation of non-standard channels within the distribution plate.

[0033] In one embodiment, the upper distribution plate 11 is described with reference to Fig. 8 and Fig. 9 provided with a first positioning hole 111 and a second positioning hole 112, wherein the first positioning hole 111 and the second positioning hole 112 are arranged diagonally; wherein the lower distributor plate 12 is provided with a third positioning hole 121 and a fourth positioning hole 122, and wherein the third positioning hole 121 and the fourth positioning hole 122 are arranged diagonally; wherein the first positioning hole 111 and the third positioning hole 121 are positioned and connected to each other via a first positioning pin 13, while the second positioning hole 112 and the fourth positioning hole 122 are positioned and connected to each other via a second positioning pin 14.

[0034] The diagonal arrangement of the first positioning hole 111 and the second positioning hole 112, as well as the third positioning hole 121 and the fourth positioning hole 122, and the subsequent use of the first positioning pin 13 and the second positioning pin 14 for the quick and precise positioning of the upper distributor plate 11 and the lower distributor plate 12 for a stable installation, improves the efficiency of the positioning and assembly of the distributor plates.

[0035] In one embodiment, the upper distributor plate 11 and the lower distributor plate 12 are connected by welding, thereby ensuring a more stable connection between the upper distributor plate 11 and the lower distributor plate 12 with high diffusion welding efficiency.

[0036] In one embodiment, the main channel 20 comprises, with reference to Fig. 8 and Fig. 9 an upper half of the main channel 21 and a lower half of the main channel 22, wherein the upper half of the main channel 21 is arranged on the upper distributor plate 11 and the lower half of the main channel 22 is arranged on the lower distributor plate 12, which facilitates the formation of the main channel 20.

[0037] In one embodiment, the first distribution channel comprises 30 with reference to Fig. 8 and Fig. 9 a first upper half of the distribution channel 31 and a first lower half of the distribution channel 32, wherein the first upper half of the distribution channel 31 is arranged on the upper distribution plate 11 and the first lower half of the distribution channel 32 is arranged on the lower distribution plate 12, which facilitates the formation of the first distribution channel 30 in a non-standard shape.

[0038] In one embodiment, the second distribution channel comprises 40 with reference to Fig. 8 and Fig. 9 a second upper half of the distribution channel 41 and a second lower half of the distribution channel 42, wherein the second upper half of the distribution channel 41 is arranged on the upper distribution plate 11 and the second lower half of the distribution channel 42 is arranged on the lower distribution plate 12, which facilitates the formation of the second distribution channel 40 in a non-standard shape.

[0039] In one embodiment, the valve pin channel 50 is defined with reference to Fig. 10 and Fig. 12 arranged on the lower distributor plate 12, which facilitates the formation of the valve pin channel 50.

[0040] Optionally, a valve pin installation hole is provided on the manifold plate body 10, wherein the valve pin 200 passes through the valve pin installation hole and protrudes into the valve pin channel 50, and wherein the valve pin 200 is installed through the valve pin installation hole on the manifold plate body 10.

[0041] Optionally, an injector nozzle installation hole is provided on the distributor plate body 10, which is connected to the main channel 20, wherein the injector nozzle installation hole is used to install the injector nozzle 300 on the distributor plate body 10, and wherein the molten plastic material from the injector nozzle 300 is injected into the main channel 20. with reference to Fig.Figure 11 further provides a hot runner 1000 comprising a balanced two-channel distributor plate 100 as described above, and further comprising an injection nozzle 300 and a hot nozzle 400. The injection nozzle 300 is arranged above and connected to the balanced two-channel distributor plate 100, the injection nozzle 300 being in communication with the main channel 20; the hot nozzle 400 being arranged below and connected to the balanced two-channel distributor plate 100, the valve pin channel 50 being in communication with the hot nozzle 400, and the valve pin 200 passing through the distributor plate body 10 and projecting into the valve pin channel 50 and the hot nozzle 400. Since the balanced two-channel distribution board 100 has already been described above, it will not be explained again here.

[0042] The molten plastic material is injected from the injection nozzle 300 into the main channel 20 of the distributor plate. At the outlet of the main channel 20, the molten plastic material branches out to enter the first distributor channel 30 and the second distributor channel 40, respectively. It then passes through the first inclined channel 60 and the second inclined channel 70, respectively, before entering the valve pin channel 50 and subsequently the hot nozzle 400. During this process, the valve pin 200 moves vertically within the hot nozzle 400 to produce the injection-molded product 2000.

[0043] In summary, the present embodiment provides a balanced two-channel distributor plate 100 comprising a distributor plate body 10, a main channel 20, a first distributor channel 30, a second distributor channel 40 and a valve pin channel 50.The main channel 20 is arranged in the distributor plate body 10; wherein the first distributor channel 30 is arranged in the distributor plate body 10, the first distributor channel 30 being arranged at an outlet of the main channel 20 and being connected to the main channel 20; wherein the second distributor channel 40 is arranged in the distributor plate body 10, the second distributor channel 40 being arranged at an outlet of the main channel 20 and being connected to the main channel 20; wherein the valve pin channel 50 is arranged in the distributor plate body 10, and wherein a valve pin 200 passes through the valve pin channel 50, and wherein an outlet of the first distributor channel 30 and an outlet of the second distributor channel 40 converge in the valve pin channel 50, and wherein the outlet of the first distributor channel 30 and the outlet of the second distributor channel 40 are located on both sides of the valve pin 200.The present embodiment further provides a hot runner 1000 comprising a balanced two-channel distributor plate 100 as described above, and further comprising an injection nozzle 300 and a hot nozzle 400. The injection nozzle 300 is arranged above and connected to the balanced two-channel distributor plate 100, the injection nozzle 300 being in communication with the main channel 20; the hot nozzle 400 being arranged below and connected to the balanced two-channel distributor plate 100, the valve pin channel 50 being in communication with the hot nozzle 400, and the valve pin 200 passing through the distributor plate body 10 and projecting into the valve pin channel 50 and the hot nozzle 400.(1) The balanced two-channel distributor plate 100 and the hot runner 1000 provided by the present embodiment have a simple structure. The molten plastic material branches at the outlet of the main channel 20 to enter the first distributor channel 30 and the second distributor channel 40, respectively. The outlet of the first distributor channel 30 and the outlet of the second distributor channel 40 are located on both sides of the valve pin 200. The molten plastic material flowing from the first distributor channel 30 and the second distributor channel 40 impacts the valve pin 200 simultaneously from both sides before entering the valve pin channel 50. This ensures a balanced and uniform force distribution on the valve pin 200 and prevents bending or deformation of the valve pin 200.Consequently, the valve pin head and the sprue sleeve 410 remain concentric at all times, thus reducing wear on the hot runner accessories. This approach avoids flash defects in the injection-molded product 2000 and thus improves the product quality of the injection-molded product 2000. (2) Since the molten plastic material flowing from the first manifold channel 30 and the second manifold channel 40 impacts the valve pin 200 symmetrically on both sides of the valve pin 2000 before entering the valve pin channel 50, retention zones that form when the plastic material flows through the back of the valve pin 200 are significantly reduced. The reduction of these retention zones improves the efficiency of the color change during hot runner injection molding, resulting in higher product color change efficiency and saving plastic. (3) The first manifold channel 30 and the second manifold channel 40 use a dual-channel design.When the plastic material fills the branching point and enters separately into the first distribution channel 30 and the second distribution channel 40, a balanced plastic distribution is achieved.

[0044] The foregoing description merely presents preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. All modifications, equivalent replacements, or improvements made in accordance with the principles of the present utility model shall fall within the scope of protection of the present utility model.

Claims

A balanced two-channel distributor plate, characterized in that it comprises: a distributor plate body; a main channel arranged in the distributor plate body; a first distributor channel arranged in the distributor plate body, wherein the first distributor channel is arranged at an outlet of the main channel and is connected to the main channel; a second distributor channel arranged in the distributor plate body, wherein the second distributor channel is arranged at an outlet of the main channel and is connected to the main channel; a valve pin channel arranged in the distributor plate body, wherein a valve pin passes through the valve pin channel, and wherein an outlet of the first distributor channel and an outlet of the second distributor channel converge in the valve pin channel, and wherein the outlet of the first distributor channel and the outlet of the second distributor channel are located on both sides of the valve pin. Balanced two-channel distributor plate according to claim 1, characterized in that the first distributor channel and the second distributor channel are arranged centrally symmetrically, wherein the outlet of the first distributor channel and the outlet of the second distributor channel are arranged centrally symmetrically with respect to the valve pin channel. Balanced two-channel distributor plate according to claim 1, characterized in that the first distributor channel is S-shaped; and / or wherein the second distributor channel is S-shaped. Balanced two-channel distributor plate according to claim 1, characterized in that the balanced two-channel distributor plate further comprises: a first inclined channel arranged in the distributor plate body, wherein the outlet of the first distributor channel is connected to the first inclined channel; a second inclined channel arranged in the distributor plate body, wherein the outlet of the second distributor channel is connected to the second inclined channel; wherein an outlet of the first inclined channel and an outlet of the second inclined channel converge in the valve pin channel. Balanced two-channel distributor plate according to claim 4, characterized in that the first inclined channel and the valve pin enclose an angle of 15° to 75°; and / or wherein the second inclined channel and the valve pin enclose an angle of 15° to 75°. Balanced two-channel distributor plate according to claim 1, characterized in that the distributor plate body comprises an upper distributor plate and a lower distributor plate, wherein the upper distributor plate and the lower distributor plate are positioned via a positioning pin and then firmly connected to each other. Balanced two-channel distributor plate according to claim 6, characterized in that the upper distributor plate is provided with a first positioning hole and a second positioning hole, wherein the first positioning hole and the second positioning hole are arranged diagonally; wherein the lower distributor plate is provided with a third positioning hole and a fourth positioning hole, and wherein the third positioning hole and the fourth positioning hole are arranged diagonally; wherein the first positioning hole and the third positioning hole are positioned and connected to each other via a first positioning pin, while the second positioning hole and the fourth positioning hole are positioned and connected to each other via a second positioning pin. Balanced two-channel distributor plate according to claim 6, characterized in that the upper distributor plate and the lower distributor plate are connected to each other by welding. Balanced two-channel distributor plate according to claim 6, characterized in that the main channel comprises an upper half of the main channel and a lower half of the main channel, wherein the upper half of the main channel is arranged on the upper distributor plate and the lower half of the main channel is arranged on the lower distributor plate; and / or wherein the first distributor channel comprises a first upper half of the distributor channel and a first lower half of the distributor channel, wherein the first upper half of the distributor channel is arranged on the upper distributor plate and the first lower half of the distributor channel is arranged on the lower distributor plate; and / or wherein the second distributor channel comprises a second upper half of the distributor channel and a second lower half of the distributor channel, wherein the second upper half of the distributor channel is arranged on the upper distributor plate and the second lower half of the distributor channel is arranged on the lower distributor plate;and / or wherein the valve pin channel is located on the lower distributor plate. Hot runner, characterized in that it comprises a balanced two-channel distributor plate according to one of claims 1 to 9, further comprising: an injection nozzle arranged above the balanced two-channel distributor plate and connected to the balanced two-channel distributor plate, wherein the injection nozzle is connected to the main channel; a hot nozzle arranged below the balanced two-channel distributor plate and connected to the balanced two-channel distributor plate, wherein the valve pin channel is connected to the hot nozzle, and wherein the valve pin passes through the distributor plate body and projects into the valve pin channel and the hot nozzle.

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