Splitter plate and hot runner system with same

Abstract

The utility model provides a splitter plate and a hot runner system with the same, the splitter plate comprises a first plate body, a second plate body, a third plate body and a fourth plate body, the first plate body comprises a first surface and a first runner positioned on the first surface; the second plate body comprises a second surface attached to the first surface and a second flow channel located on the second surface, and the second flow channel comprises a first main flow section and a first communicating part communicating with the first main flow section; and the first communicating part and part of the first runner coincide in the thickness direction of the splitter plate so as to communicate with each other. According to the utility model, the flow channel of the splitter plate adopts the single-side flow channel, so that a plurality of layers of flow channels which are layered up and down can be realized only through the first plate body and the second plate body, and the thickness of the splitter plate can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot runner technical field, especially a shunt plate and hot runner system with it. BACKGROUND

[0002] The shunt plate is a component part in the hot runner system, which is used for shunting the resin material injected from the injection molding machine to the glue inlet position of each mold.

[0003] In the prior art, the shunt plate is made of multiple layers of plate materials, and the opposite surfaces of the upper and lower plate materials are provided with corresponding flow channel grooves to form a complete flow channel. In the hot runner system with multiple points, in order to consider the flow balance of the fluid material, a double-layer flow channel design is adopted, so that the number of layers of plate materials needs to be increased, thereby increasing the thickness of the shunt plate.

[0004] Therefore, it is necessary to provide a shunt plate to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] In order to achieve the above purpose, the utility model provides a shunt plate, which comprises a first plate body comprising a first surface and a first flow channel located on the first surface; a second plate body comprising a second surface fitted with the first surface and a second flow channel located on the second surface, the second flow channel comprising a first main flow section and a first communication part in communication with the first main flow section; wherein the first communication part and part of the first flow channel coincide in the thickness direction of the shunt plate to communicate.

[0006] As a further improvement of the utility model, the first flow channel comprises a first flow section and a second flow section, and the first flow section and the second flow section are in communication through the second flow channel.

[0007] As a further improvement of the utility model, the first communication part and the first flow section coincide in the thickness direction of the shunt plate, and the area of the first communication part is less than or equal to the area of the first flow section.

[0008] As a further improvement of the utility model, the first main flow section comprises a first mother flow channel, a plurality of first sub-flow channels in communication with the first mother flow channel, the first communication part is in communication with the first mother flow channel, and the distance between the first communication part and the plurality of first sub-flow channels is the same.

[0009] As a further improvement of the utility model, the first communication part is perpendicular to the first mother flow channel, and an arc-shaped protrusion is arranged at the communication position of the first mother flow channel and the first communication part.

[0010] As a further improvement of this utility model, the end of the first connecting portion is arc-shaped, and the length of the first connecting portion is at least 1.5 times the diameter of the arc shape.

[0011] As a further improvement of this utility model, the second flow section includes a second main flow section and a second connecting portion connected to the second main flow section. The second connecting portion and the first sub-flow channel coincide in the thickness direction of the flow divider plate, and the area of ​​the second connecting portion is less than or equal to the area of ​​the first sub-flow channel.

[0012] As a further improvement of this utility model, the structure of the second flow section is the same as the structure of the second flow channel.

[0013] As a further improvement of this utility model, the first plate is provided with a feed inlet that penetrates the first plate and is connected to the first flow section, and the second plate is provided with a plurality of discharge outlets that penetrate the second plate and are connected to the second flow section.

[0014] This utility model also provides a hot runner system, which includes the above-mentioned manifold.

[0015] The beneficial effects of this utility model are as follows: The flow channel of the flow divider plate in this utility model adopts a single-sided flow channel. In this way, multi-layer flow channels with upper and lower layers can be realized through only the first plate and the second plate, thereby effectively reducing the thickness of the flow divider plate. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the diverter plate of this utility model from one perspective;

[0018] Figure 2 This is a schematic diagram of the flow divider of this utility model from another perspective;

[0019] Figure 3 for Figure 1 The exploded view of the splitter is shown below.

[0020] Figure 4 for Figure 2 The exploded view of the splitter is shown below.

[0021] Figure 5 This is a schematic diagram of the first surface of the present invention;

[0022] Figure 6 This is a schematic diagram of the second surface of the present invention;

[0023] Figure 7 This is a perspective view of the flow channel inside the flow divider plate of this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] like Figures 1 to 7 As shown, the flow divider provided by this utility model includes a first plate 100 and a second plate 200. The first plate 100 and the second plate 200 are connected to each other and the fluid material of the hot runner system is divided through the flow channels inside.

[0029] The first plate body 100 comprises a first surface 101 and a first flow channel 102 located on the first surface 101, and the second unit 200 comprises a second surface 201 and a second flow channel 202 located on the second surface 201, wherein the first surface 101 and the second surface 201 are attached, and the first flow channel 102 and the second flow channel 202 partially overlap in the thickness direction of the flow distribution plate to be connected.

[0030] The first plate body 100 and the second plate body 200 are the same in shape and size. The first surface 101 is welded to the second surface 201, thereby realizing the fixed connection of the first plate body 100 and the second plate body 200, and at the same time realizing the sealing of the first flow channel 102 and the second flow channel 202. The first flow channel 102 and the second flow channel 202 jointly form a flow channel for distributing fluid materials, and the first flow channel 102 and the second flow channel 202 partially overlap in the thickness direction of the flow distribution plate, that is, the first flow channel 102 and the second flow channel 202 are not arranged correspondingly, and the overlapping part forms a communication part to realize the flow of fluid materials between the first flow channel 102 and the second flow channel 202.

[0031] Specifically, the first surface 101 is the lower bottom surface of the first plate body 100. The first flow channel 102 is formed on the first surface 101, and the first flow channel 102 is a groove opened on the first surface 101. After the first surface 101 and the second surface 201 are attached, the first flow channel 102 is sealed.

[0032] The first flow channel 102 comprises a first flow section 102a and a second flow section 102b, and the first flow section 102a and the second flow section 102b are connected through the second flow channel 202. The first flow section 102a and the second flow section 102b are arranged on the first surface 101 in a spaced manner, and fluid materials cannot directly flow from the first flow section 102a to the second flow section 102b, and need to pass through the second flow channel 202 to realize the connection of the first flow section 102a and the second flow section 102b.

[0033] The first flow section 102a extends along one of the central axes of the first surface 101. The first surface 101 is provided with a plurality of independent second flow sections 102b, and a plurality of second flow sections 102b are symmetrically arranged on both sides of the first flow section 102a. After the fluid materials enter the first flow section 102a, they flow into each second flow section 102b through the second flow channel 202.

[0034] The second flow section 102b includes a second main flow section and a second communication part 102b-1 in communication with the second main flow section, the second communication part 102b-1 overlaps with part of the second flow channel 202 in the thickness direction of the flow distribution plate, and the area of the second communication part 102b-1 is smaller than that of the second flow channel 202. The second communication part 102b-1 and part of the second flow channel 202 overlap with each other, so that the fluid material can flow from the second flow channel 202 into the second main flow section through the second communication part 102b-1.

[0035] The second main flow section includes a second mother flow channel 102b-2 and a plurality of second sub-flow channels 102b-3 in communication with the second mother flow channel 102b-2. The second communication part 102b-1 is in communication with the second mother flow channel 102b-2, and the fluid material flows from the second communication part 102b-1 into the second mother flow channel 102b-2, and then flows into each of the second sub-flow channels 102b-3 through the second mother flow channel 102b-2. The distance between the second communication part 102b-1 and the plurality of second sub-flow channels 102b-3 is the same, so that the flow channel length of the fluid material flowing from the second communication part 102b-1 to each of the second sub-flow channels 102b-3 can be ensured to be the same, so as to achieve the purpose of injection molding balance.

[0036] The second communication part 102b-1 is perpendicular to the second mother flow channel 102b-2, and the communication point of the second communication part 102b-1 and the second mother flow channel 102b-2 is located at the center position of the second mother flow channel 102b-2. The second mother flow channel 102b-2 is provided with an arc-shaped protrusion at the communication position of the second communication part 102b-1 and the second mother flow channel 102b-2, so as to distribute the fluid material flowing from the second communication part 102b-1 into the second mother flow channel 102b-2.

[0037] The end of the second communication part 102b-1 away from the second mother flow channel 102b-2 is in a circular arc shape, so that the fluid material can be effectively prevented from remaining at the end of the second communication part 102b-1. The length of the second communication part 102b-1 is at least 1.5 times the diameter of the circular arc, so as to ensure that the fluid material can flow smoothly and balancedly from the second flow channel 202 into the second mother flow channel 102b-2 through the second communication part 102b-1.

[0038] In this embodiment, the shape formed by the second main flow channel 102b-2 and several second sub-flow channels 102b-3 is approximately "I"-shaped, that is, one second main flow channel 102b-2 is paired with four second sub-flow channels 102b-3. Furthermore, arc-shaped transition sections are provided at the connection points between the second connecting portion 102b-1 and the second main flow channel 102b-2, and at the connection points between the second main flow channel 102b-2 and the second sub-flow channels 102b-3, thereby facilitating the flow of fluid materials, reducing material adhesion, and ensuring the flow balance of the fluid materials.

[0039] The first plate 100 is also provided with a feed inlet 103 that passes through the first plate 100 and is connected to the first flow section 102a. The connection point between the feed inlet 103 and the first flow section 102a is located at the center of the first flow section 102a, and the fluid material enters the first flow section 102a from the feed inlet 103.

[0040] The second surface 201 is the upper top surface of the second plate 200. The second flow channel 202 is formed on the second surface 201, and the second flow channel 202 is a groove formed on the second surface 201. After the first surface 101 and the second surface 201 are attached, the second flow channel 202 is sealed.

[0041] The second flow channel 202 includes a first main flow section and a first connecting portion 202a communicating with the first main flow section. The first connecting portion 202a and the first flow section 102a coincide in the thickness direction of the flow divider. At least a portion of the first connecting portion 202a and the first flow section 102a coincide with each other in the thickness direction of the flow divider, so that fluid material can flow from the first flow section 102a into the first main flow section through the first connecting portion 202a.

[0042] The first main flow section includes a first main flow channel 202b and a plurality of first sub-flow channels 202c connected to the first main flow channel 202b. A first connecting portion 202a is connected to the first main flow channel 202b, and fluid material flows from the first connecting portion 202a into the first main flow channel 202b, and then through the first main flow channel 202b into each of the first sub-flow channels 202c. The first connecting portion 202a and the plurality of first sub-flow channels 202c are at the same distance, thus ensuring that the flow length of the fluid material from the first connecting portion 202a to each of the first sub-flow channels 202c is the same, achieving the purpose of injection molding balance.

[0043] The first communication part 202a is perpendicular to the first female runner 202b, i.e. the first female runner 202b is perpendicular to the first flow section 102a, and the communication point of the first communication part 202a and the first female runner 202b is located at the center of the first female runner 202b. The first female runner 202b is provided with an arc-shaped protrusion 202b-1 at the communication position of the first female runner 202b and the first communication part 202a, so as to split the fluid material flowing from the first communication part 202a into the first female runner 202b.

[0044] In an embodiment, the area of the first communication part 202a is the same as the area of the first flow section 102a, i.e. the first communication part 202a and the first flow section 102a completely coincide with each other and cooperatively form a sealed flow channel.

[0045] In the embodiment, the first female runner 202b is separately arranged at both ends of the first communication part 202a along the extension direction of the first communication part 202a. The fluid material enters the flow channel formed by the first communication part 202a and the first flow section 102a from the feeding port 103, and then flows into the first female runner 202b at both ends and flows into each first sub-flow channel 202c through the first female runner 202b.

[0046] It can be understood that, in the embodiment, the second flow channel 202 is a complete flow channel, and the two first female runners 202b are connected through the first communication part 202a.

[0047] In another embodiment, the area of the first communication part 202a is smaller than the area of the first flow section 102a.

[0048] In the embodiment, two second flow channels 202 are symmetrically arranged on the second surface 201, and the two second flow channels 202 are separately arranged at both ends of the first flow section 102a through the first communication part 202a. The fluid material enters the first flow section 102a from the feeding port 103, and then flows into the first communication part 202a at both ends, and then flows into the first female runner 202b and flows into each first sub-flow channel 202c through the first female runner 202b.

[0049] Like the second communication part 102b-1, the end of the first communication part 202a away from the first female runner 202b is in a circular arc shape, and the length of the first communication part 202a is at least 1.5 times the diameter of the circular arc shape, so as to ensure that the fluid material can smoothly and balancedly flow from the first flow section 102a into the first female runner 202b through the first communication part 202a.

[0050] The first mother runner 202b and the first sub-runner 202c can be arranged in the same way as the second mother runner 102b-2 and the second sub-runner 102b-3, which will not be described here.

[0051] It should be particularly noted that the second communication part 102b-1 coincides with the first sub-runner 202c in the thickness direction of the distribution plate, and the area of the second communication part 102b-1 is less than or equal to the area of the first sub-runner 202c. The second communication part 102b-1 and the first sub-runner 202c can be arranged in the same way as the first communication part 202a and the first flow section 102a, which will not be described here.

[0052] Of course, in other embodiments, the first flow section 102a can also be arranged on the second surface 201, that is, the first flow section 102a and the second runner 202 are located on the same surface, and the two second runners 202 are arranged at the two ends of the first flow section 102a and are connected in communication through the first flow section 102a.

[0053] The second plate body 200 is also provided with a plurality of discharge ports 203 penetrating the second plate body 200 and connected in communication with the second flow section 102b. The communication point of the discharge port 203 with the second flow section 102b is located at the end of the second sub-runner 102b-3, and the fluid material finally flows out of the flow channel from the discharge port 203.

[0054] Referring to Figures 5 to 7 , the first flow channel 102, the second flow channel 202 and the flow of fluid material in the flow channel will be described in detail below with a specific embodiment.

[0055] Referring to Figure 5 , the first flow channel 102 includes one first flow section 102a on the first surface 101 and eight second flow sections 102b independent of each other, and the eight second flow sections 102b are arranged symmetrically. Each of the second flow sections 102b includes a second communication part 102b-1 coinciding with the first sub-runner 202c, one second mother runner 102b-2 and four second sub-runners 102b-3, and the area of the second communication part 102b-1 is less than the area of the first sub-runner 202c. The inlet port 103 is located at the center of the first plate body 100 and is connected in communication with the first flow section 102a.

[0056] Referring to Figure 6The second surface 201 is provided with two mutually independent second flow channels 202, and the two second flow channels 202 are symmetrically arranged and communicated through the first flow section 102a. The second flow channel 202 comprises a first communication part 202a which is coincident with the first flow section 102a, one first mother flow channel 202b and four first sub-flow channels 202c, and the area of the first communication part 202a is smaller than that of the first flow section 102a. One first sub-flow channel 202c is matched with one second flow section 102b. The second flow channel 202 and the second flow section 102b have the same shape structure. One second sub-flow channel 102b-3 is matched with one discharge port 203, and there are totally 32 discharge ports 203.

[0057] With reference to Figure 7 The fluid material enters the first flow section 102a from the feeding port 103, and when flowing to the end of the first flow section 102a, the fluid material flows into the first mother flow channel 202b through the first communication part 202a, and at this time, the fluid material flows from the first surface 101 to the second surface 201, and the overturning flow in the height direction is beneficial to rearrange the heat distribution of the fluid material in the flow channel and prevent the temperature imbalance of the fluid material.

[0058] The fluid material continues to flow along the first mother flow channel 202b into each first sub-flow channel 202c, and when flowing to the end of the first sub-flow channel 202c, the fluid material flows into the second mother flow channel 102b-2 through the second communication part 102b-1, and at this time, the fluid material flows from the second surface 201 to the first surface 101, and the overturning flow of the fluid material is realized again.

[0059] The fluid material continues to flow along the second mother flow channel 102b-2 into each second sub-flow channel 102b-3, and finally flows out of the flow channel through the discharge port 203.

[0060] The application further provides a hot runner system which comprises the above-mentioned flow distribution plate, a main piston and a plurality of hot pistons. The main piston is communicated with the feeding port 103, and the hot pistons are communicated with the discharge ports 203. The main piston is used for conveying the fluid material (such as molten resin) into the flow channel of the flow distribution plate, and after being distributed by the flow channel, the fluid material is injected into each cavity of an injection mold through the hot pistons, so as to process products.

[0061] As described above, the flow channel of the flow distribution plate in the application changes the mode that the flow channel grooves of the upper plate and the lower plate are correspondingly arranged and cooperated to surround the flow channel, and a single-sided flow channel is adopted. In this way, the upper and lower multi-layer flow channels can be realized only by the first plate body 100 and the second plate body 200, so that the thickness of the flow distribution plate can be effectively reduced.

[0062] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

[0063] The above series of detailed descriptions are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or modifications made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A flow divider, characterized in that, The application relates to a flow distribution plate. The first plate body (100) comprises a first surface (101) and a first flow channel (102) on the first surface (101); the second plate body (200) comprises a second surface (201) which is attached to the first surface (101) and a second flow channel (202) on the second surface (201), wherein the second flow channel (202) comprises a first main flow section and a first communication part (202a) which is in communication with the first main flow section; and the first communication part (202a) and part of the first flow channel (102) are in communication in the thickness direction of the flow distribution plate. The first flow channel (102) comprises a first flow section (102a) and a second flow section (102b), and the first flow section (102a) and the second flow section (102b) are in communication through the second flow channel (202). The first communication part (202a) and the first flow section (102a) are in communication in the thickness direction of the flow distribution plate, and the area of the first communication part (202a) is less than or equal to the area of the first flow section (102a).

2. The splitter plate of claim 1, wherein: The first main flow section comprises a first parent flow channel (202b) and a plurality of first child flow channels (202c) which are in communication with the first parent flow channel (202b), the first communication part (202a) is in communication with the first parent flow channel (202b), and the distance between the first communication part (202a) and the plurality of first child flow channels (202c) is the same.

3. The flow splitter of claim 2, wherein: The first communication part (202a) is perpendicular to the first parent flow channel (202b), and an arc-shaped protrusion (202b-1) is arranged at the position where the first parent flow channel (202b) is in communication with the first communication part (202a).

4. The splitter plate of claim 3, wherein: The end of the first communication part (202a) is in the form of a circular arc, and the length of the first communication part (202a) is at least 1.5 times the diameter of the circular arc.

5. The splitter plate of claim 4, wherein: The second flow section (102b) comprises a second main flow section and a second communication part (102b-1) which is in communication with the second main flow section, the second communication part (102b-1) and the first child flow channel (202c) are in communication in the thickness direction of the flow distribution plate, and the area of the second communication part (102b-1) is less than or equal to the area of the first child flow channel (202c).

6. The splitter plate of claim 3, wherein: The structure of the second flow section (102b) is the same as that of the second flow channel (202).

7. The splitter plate of claim 4, wherein: The first plate body (100) is provided with a feed inlet (103) which penetrates the first plate body (100) and is in communication with the first flow section (102a), and the second plate body (200) is provided with a plurality of discharge outlets (203) which penetrate the second plate body (200) and are in communication with the second flow section (102b).

8. The flow splitter of claim 7, wherein: The application further relates to a flow distribution plate as claimed in any one of claims 1-9.

9. The flow splitter of claim 2, wherein: ​ 10. A hot runner system characterized by: ​

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