CN222933259U

CN222933259U - Colour-changing flow-dividing plate

Info

Publication number: CN222933259U
Application number: CN202422128090.4U
Authority: CN
Inventors: 余丽娜; 李洁
Original assignee: Youlipu Injection Molding Technology Kunshan Co ltd
Current assignee: Youlipu Injection Molding Technology Kunshan Co ltd
Priority date: 2024-08-30
Filing date: 2024-08-30
Publication date: 2025-06-03
Anticipated expiration: 2034-08-30

Abstract

The utility model discloses a color-changing manifold plate, including a plate body, an insert, a plug, and a heating wire installed on the plate body. The plate body is provided with a main flow channel and a lower flow channel. The plate body is also provided with an upper mounting groove coaxial with and connected to the lower flow channel, and a side mounting groove coaxial with and connected to the main flow channel. The insert is arranged in the upper mounting groove. The insert is provided with an L-shaped flow channel for connecting the main flow channel and the lower flow channel. At least the bending part of the L-shaped flow channel has an arc surface. The plug is a heat-conducting material, which is arranged in the side mounting groove, and at least the end thereof abuts against the insert. The L-shaped flow channel with an arc surface on the insert of the utility model can prevent the molten material from hiding or accumulating in the insert, and the insert is heated by means of the plug with excellent heat conduction effect, so that the molten material flowing through the L-shaped flow channel has better fluidity, thereby improving the color-changing effect.

Description

Colour-changing flow-dividing plate

Technical Field

The utility model relates to the technical field of injection molding devices, in particular to a color-changeable flow distribution plate.

Background

In the injection molding field, a hot runner manifold is a central component of a hot runner system, and distributes molten materials transmitted from a nozzle of the hot runner to nozzles of each injection point through a manifold, and in the process, the flow channel trend of the manifold and the temperature uniformity of the manifold determine the flowability of the materials in a mold cavity. At present, all industries are reducing the cost, in particular to 3C industries, in order to reduce the die cost and improve the production efficiency, products with different colors are injected by using the same set of dies, so that the requirement on the fluidity of a hot runner, which is a molten material in a flow distribution plate, is higher.

In prior art, in order to make the molten material can be comparatively smooth and easy when reversing in the flow distribution plate, avoid the material to pile up or hide, can use the mold insert that has the arc to connect the runner to carry out the water conservancy diversion, like a water conservancy diversion mold insert and the intermediate layer hot runner structure that discolours that the application number is 202122624516.1, disclosed that the water conservancy diversion mold insert can be with hot mouth and flow distribution plate butt joint, is equipped with the arc section in the runner of buckling, and the arc section can avoid the material of moulding plastics to remain, can guarantee to mould plastics in the runner of buckling and wash away cleanly. The problem that molten materials are smoothly commutated is solved, but the fluidity of the materials is related to the molten state of the materials, and good heating and heat preservation effects are required for the molten materials in the inserts.

Disclosure of utility model

The utility model aims to provide a color-changing flow distribution plate, wherein an L-shaped flow passage with an arc surface shape on an insert can prevent molten materials from being hidden or accumulated in the insert, and the insert is heated by a plug with an excellent heat conduction effect, so that the molten materials flowing through the L-shaped flow passage have better fluidity, and the color-changing effect is improved.

The color-changing flow distribution plate comprises a plate body, an insert, a plug and a heating wire, wherein the heating wire is arranged on the plate body, a main flow channel and a lower flow channel are arranged on the plate body, an upper mounting groove which is coaxial and communicated with the lower flow channel and a side mounting groove which is coaxial and communicated with the main flow channel are also arranged on the plate body, the insert is arranged in the upper mounting groove, an L-shaped flow channel which is used for communicating the main flow channel and the lower flow channel is arranged on the insert, at least the bending part of the L-shaped flow channel is provided with a cambered surface shape, the plug is made of a heat-conducting material and is arranged in the side mounting groove, and at least the end part of the plug is abutted against the insert.

As a further optimization, the L-shaped runner comprises a horizontal runner, a vertical runner and an arc runner communicated with the horizontal runner and the vertical runner, the horizontal runner and the vertical runner are respectively communicated with the main runner and the lower runner, and at least the end part of the plug is abutted against the part with the arc runner on the insert.

As further optimization, the upper end of the insert is provided with a positioning plate, and the insert can be positioned in the upper mounting groove.

As further optimization, the positioning plate is provided with a positioning tangential plane, the mounting position of the insert can be correct through the setting of the positioning tangential plane, and the main runner and the lower runner can be accurately communicated with the L-shaped runner.

As further optimization, the insert is provided with a positioning groove, the positioning groove is arranged on the positioning plate, and the insert can be fixed by extending the pin column into the positioning groove and the plate body.

As further optimization, the plug is abutted to one end, far away from the main runner, of the insert, and is coaxially arranged with the main runner, so that heat can be transferred to the L-shaped runner at a shorter distance.

As further optimization, the plug is provided with the extension part, the insert is provided with the positioning hole, the extension part is embedded into the positioning hole, and the plug can be more close to the L-shaped flow passage, so that heat can be transferred more efficiently.

As further optimization, the extension part is provided with a chamfer, the positioning hole is internally provided with a positioning surface matched with the chamfer, the chamfer is abutted to the positioning surface, and the chamfer can wrap the bent part of the L-shaped flow passage as large as possible, so that heat transfer is facilitated.

More specifically, the chamfer wraps one side, far away from the main runner, of the arc-shaped runner.

As a further optimization, the plug is made of aluminum, copper or silver, preferably copper, and has an excellent heat conduction effect.

Compared with the prior art, the utility model has the following beneficial effects:

1. The L-shaped runner with the cambered surface shape on the insert can avoid hiding or accumulating molten materials in the insert, and is beneficial to color change of the materials;

2. The plug with better heat conduction effect is used for heating the insert, so that the molten material flowing through the L-shaped runner has better fluidity, and the color changing effect of the material is further improved.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the insert and plug of the present utility model mounted on a plate body.

Fig. 3 is a structural view of the plate body of the present utility model.

Fig. 4 is a structural view of the insert of the present utility model.

Fig. 5 is a schematic view of the installation of the insert and plug of the present utility model.

Fig. 6 is a schematic view of the installation of inserts and plugs in another embodiment of the present utility model.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 3, a color-changing flow-dividing plate includes a plate body 1, an insert 2, a plug 3, and a heating wire 13 mounted on the plate body 1, wherein the plate body 1 is provided with a main flow channel 101 and a lower flow channel 102, the main flow channel 101 and the lower flow channel 102 are respectively used for dividing molten material entering the plate body 1 into a shape and flowing into a nozzle through the lower flow channel 102, the plate body 1 is also provided with an upper mounting groove 12 coaxial with and communicated with the lower flow channel 102, and a side mounting groove 11 coaxial with and communicated with the main flow channel 101, the insert 2 is arranged in the upper mounting groove 12, at least a bending part of the L-shaped flow channel 20 is provided with an arc surface shape, the plug 3 is made of a heat conducting material, preferably a copper material with good heat conducting effect, and is arranged in the side mounting groove 11, and at least the end part of the plug is abutted with the insert 2.

In the utility model, molten materials enter a main runner 101 through a feeding hole 100 on a plate body 1 and flow into a lower runner 102 through an L-shaped runner 20 in an insert 2, and as the L-shaped runner 20 is provided with an arc surface shape at a bending part, the molten materials can be smoothly converted in the vertical direction, the existence of the arc surface shape can reduce the existence of a right-angle structure or an edge angle structure in the L-shaped runner 20, the molten materials can be prevented from being hidden or accumulated in the L-shaped runner 20, the influence of the residual materials in the L-shaped runner on the injection molding effect after the replacement of the materials is avoided, the color change of the materials is facilitated, and on the basis of heating by an original heating wire 13, the heating and heat preservation effect of the bending part of the L-shaped runner 20 can be improved by arranging a plug 3 which is in contact with the insert 2 and particularly in contact with the bending part of the L-shaped runner 20, so that the molten materials flowing through the L-shaped runner 20 have better molten state and fluidity can be prevented from being accumulated in the bending part, and the color change of the materials is facilitated.

According to the utility model, the flow direction of the molten material is converted through the L-shaped runner with the cambered surface shape on the insert 2, so that the molten material is prevented from being hidden or accumulated in the insert 2, the color change of the material is facilitated, and the insert 2 is heated through the plug 3 with better heat conduction effect, so that the molten material flowing through the L-shaped runner 20 has better fluidity, and the color change effect of the material can be further improved.

Referring to fig. 4, the specific structure of the L-shaped runner 20 includes a horizontal runner 201, a vertical runner 202, and an arc runner 203 for communicating the two, where the horizontal runner 201 and the vertical runner 202 are respectively communicated with the main runner 101 and the lower runner 102, and the end of the plug 3 is abutted to the part of the insert 2 with the arc runner 203, so that the part can be conducted with better heat conduction, and the melting state and fluidity of the molten material at the flow direction conversion position are improved.

The upper end of mold insert 2 is equipped with locating plate 21, is equipped with location tangent plane 211 on the locating plate 21, can be with the accurate location of mold insert 2 in last mounting groove 12 for horizontal runner 201 and vertical runner 202 respectively accurate butt joint sprue 101 and runner intercommunication 102 down.

The insert 2 is provided with a positioning groove 200, the positioning groove 200 can be matched with a notch on the plate body 1 to form a column cavity, and the insert 2 is fixed on the plate body 1 through a pin column and the like assembled in the column cavity.

As shown in fig. 5, in an embodiment of the present utility model, the plug 3 abuts against an end of the insert 2 remote from the main runner 101, and is disposed coaxially with the main runner 101.

In another embodiment of the present utility model, as shown in fig. 6, an extension portion 31 is provided on the plug 3, a positioning hole 204 is provided on the insert 2, the extension portion 31 is embedded into the positioning hole 204, and heat can be transferred into the L-shaped flow channel in a shorter distance through the arrangement of the extension portion 31, so as to ensure the melting state and fluidity of the molten material at the bending position of the L-shaped flow channel.

Furthermore, the extending portion 31 is provided with a chamfer 311, the positioning hole 204 is provided with a positioning surface matched with the chamfer 311, the chamfer 311 is abutted against the positioning surface, and the chamfer 311 can enter a bending part of the L-shaped runner 20 with a large area through the positioning surface, so that the fluidity of the molten material flowing through the bending part is improved.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. A color-changing manifold plate, characterized in that it includes a plate body, an insert, a plug, and a heating wire installed on the plate body, the plate body is provided with a main flow channel and a lower flow channel, the plate body is also provided with an upper mounting groove coaxial with and connected to the lower flow channel, and a side mounting groove coaxial with and connected to the main flow channel, the insert is arranged in the upper mounting groove, the insert is provided with an L-shaped flow channel for connecting the main flow channel and the lower flow channel, at least the bending part of the L-shaped flow channel has an arc surface, the plug is made of heat-conducting material, is arranged in the side mounting groove, and at least its end portion abuts against the insert.

2. The color-changing manifold plate according to claim 1 is characterized in that the L-shaped flow channel includes a horizontal flow channel, a vertical flow channel, and an arc-shaped flow channel connecting the two, the horizontal flow channel and the vertical flow channel are respectively connected to the main flow channel and the lower flow channel, and at least the end of the plug abuts against the part of the insert having the arc-shaped flow channel.

3. The color-changing manifold according to claim 1, characterized in that a positioning plate is provided at the upper end of the insert.

4. The color-changing manifold according to claim 3, characterized in that a positioning cut surface is provided on the positioning plate.

5. The color-changing manifold according to claim 1 or 3, characterized in that a positioning groove is provided on the insert.

6. The color-changing manifold according to claim 2, characterized in that the plug is in contact with an end of the insert away from the main flow channel and is coaxially arranged with the main flow channel.

7. The color-changing manifold according to claim 6, characterized in that an extension portion is provided on the plug, a positioning hole is provided on the insert, and the extension portion is embedded in the positioning hole.

8. The color-changing manifold according to claim 7, characterized in that a chamfer is provided on the extension portion, a positioning surface matching the chamfer is provided in the positioning hole, and the chamfer abuts against the positioning surface.

9 . The color-changing manifold according to claim 8 , wherein the oblique cut surface wraps around a side of the arc-shaped flow channel away from the main flow channel.

10 . The color-changing manifold according to claim 1 , wherein the plug is made of aluminum, copper or silver.