In-line hot runner structure with brush between rubber hair teeth

Abstract

And an in-line hot runner structure is brushed between the rubber hair teeth. Relates to the technical field of hot runner injection. Comprising an upper plate, a splitter plate and a supporting plate, a cushion block is arranged between the upper plate and the supporting plate, and the splitter plate is located between the upper plate and the supporting plate; the injection mold further comprises a hot nozzle, the upper end of the hot nozzle is connected between the splitter plate and the supporting plate, the lower end of the hot nozzle extends out of the supporting plate, the hot nozzle is provided with at least two injection molding runners, and valve needles are arranged in the injection molding runners. A main filling nozzle is arranged in the middle of the upper plate, a flow dividing runner is arranged on the flow dividing plate, the main filling nozzle is communicated with the flow dividing runner, and the flow dividing runner is communicated with the injection molding runner. The valve needle is stable in action, rubber materials are saved, the forming period is short, the product quality is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner injection molding, in particular to a rubber-bristle inter-tooth brush in-line hot runner structure. Background Art

[0002] Injection molding is the process of heating and melting the raw materials in the barrel of an injection molding machine. Under the action of injection pressure, the molten raw materials are ejected from the nozzle at the front end of the barrel, flow through the pouring system and are injected into the closed cavity of the mold, then cooled and shaped. Finally, the cavity is opened and the product is demoulded and taken out.

[0003] The spacing between existing interdental brush products is very narrow. If a needle valve hot runner structure with one point per hole is used, the hot nozzle diameter is large (up to 20mm) and cannot meet the glue feeding requirements of each hole product; if a three-plate mold point glue feeding structure is used, the nozzle material will also cause a lot of waste. Utility Model Content

[0004] In view of the above problems, the utility model provides a simple, convenient and reliable rubber-bristled inter-tooth brush in-line hot runner structure.

[0005] The technical solution of the utility model is: a rubber-bristle inter-tooth brush in-line hot runner structure, comprising an upper plate, a diverter plate and a support plate, a pad is provided between the upper plate and the support plate, and the diverter plate is located between the upper plate and the support plate;

[0006] It also includes a hot nozzle, the upper end of the hot nozzle is connected between the diverter plate and the support plate, and the lower end extends out of the support plate, the hot nozzle is provided with at least two injection flow channels, and a valve needle is provided in the injection flow channel;

[0007] A main filling nozzle is provided in the middle of the upper plate, a diversion flow channel is provided on the diversion plate, the main filling nozzle is connected to the diversion flow channel, and the diversion flow channel is connected to the injection flow channel.

[0008] The supporting plate is provided with a stepped hole, the hot nozzle is stepped, and the hot nozzle is located in the stepped hole of the supporting plate.

[0009] The hot nozzle is provided with three injection flow channels.

[0010] The valve needle passes through the diverter plate and is connected to the cylinder located in the upper plate.

[0011] A heating coil is provided on the diverter plate.

[0012] The hot nozzle is provided with a heating coil on the annular surface.

[0013] During operation, the utility model arranges a hot nozzle between the diverter plate and the supporting plate, and at least two injection flow channels are arranged on the hot nozzle, so as to form an in-line glue feeding point; thus, the difficulty of glue feeding is solved for products with narrow spacing.

[0014] The valve needle of the utility model has stable action, saves rubber materials, shortens the molding cycle, ensures product quality, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. In the drawings, the various parts are not necessarily drawn according to the actual scale.

[0016] Figure 1 It is a structural diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the glue feeding structure of the utility model;

[0018] In the figure, 1 is the upper plate, 2 is the manifold plate, 3 is the support plate, 4 is the pad, 5 is the hot nozzle, 6 is the injection runner, 7 is the valve needle, 8 is the main injection nozzle, 9 is the cylinder, and 10 is the stepped hole. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limitations on this utility model. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] The utility model Figure 1-2As shown, the rubber-bristle inter-tooth brush in-line hot runner structure includes an upper plate 1, a diverter plate 2 and a support plate 3, a spacer 4 is provided between the upper plate and the support plate, and the diverter plate 2 is located between the upper plate 1 and the support plate 4;

[0023] It also includes a hot nozzle 5, the upper end of which is connected between the diverter plate 2 and the support plate 3, and the lower end of which extends out of the support plate 3. The hot nozzle 5 is provided with at least two injection channels 6, and a valve needle 7 is provided in the injection channel;

[0024] A main filling nozzle 8 is provided in the middle of the upper plate, and a diversion flow channel is provided on the diversion plate. The main filling nozzle is connected to the diversion flow channel, and the diversion flow channel is connected to the injection flow channel.

[0025] In operation, the utility model provides a hot nozzle between the manifold and the support plate, and at least two injection channels are provided on the hot nozzle to facilitate the formation of in-line glue feeding points. This solves the glue feeding problem for products with narrow spacing. The valve needle in the utility model has stable operation, saves glue, shortens the molding cycle, ensures product quality, and improves production efficiency.

[0026] A stepped hole 10 is provided on the supporting plate, and the hot nozzle is stepped and located in the stepped hole of the supporting plate.

[0027] The stepped hole is provided to facilitate the positioning of the hot nozzle and the installation and connection.

[0028] The hot nozzle 5 is provided with three injection flow channels.

[0029] In this way, a single hot nozzle is equipped with three in-line glue feeding points to improve efficiency.

[0030] The product in this utility model requires three independent glue feeding points, but the center distance between each two is 14mm. However, the diameter of a single hot nozzle is 20mm, and it is impossible to place three hot nozzles with a diameter of 20mm. In this way, the hot nozzles will interfere with each other. Therefore, a large hot nozzle is designed to include a structure with three glue feeding points.

[0031] The valve needle 7 passes through the diverter plate and is connected to the cylinder 9 located in the upper plate.

[0032] Cylinder control is convenient and reliable. Cylinder control is a conventional method, as disclosed in patent application number 202320165076.4, entitled Needle Valve Hot Runner Assembly, and will not be described in detail in this case.

[0033] The diverter plate 2 is provided with a heating coil (not shown in the figure).

[0034] In this way, it is convenient to heat the rubber material in the manifold to ensure flow reliability.

[0035] The hot nozzle 5 is provided with a heating coil (not shown in the figure) on the annular surface.

[0036] In this way, it is easy to heat the rubber material in the hot nozzle and ensure flow reliability.

[0037] When the utility model is working, the molten rubber material passes through the main filling nozzle to the diverter plate, and the rubber material flows to the single hot nozzle through the diverter flow channel. The single hot nozzle evenly heats the internal rubber material through the heating coil. Figure 2 As shown, the glue material is fed synchronously from three glue feeding points. After the glue is discharged from glue feeding point G1, it is injected into products A1-A2 through the flow channel; glue feeding point G2 injects products A3-A4; glue feeding point G3 injects products A5-A6. When it is actuated, the cylinder drives the valve needle to move, thereby realizing the glue feeding of the product.

[0038] Regarding the content disclosed in this case, the following points need to be explained:

[0039] (1) The drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design;

[0040] (2) In the absence of conflict, the embodiments and features of the embodiments disclosed in this case may be combined with each other to form new embodiments;

[0041] The above are only specific implementation methods disclosed in this case, but the protection scope of this disclosure is not limited thereto. The protection scope disclosed in this case should be based on the protection scope of the claims.

Claims

1. The rubber-bristle inter-tooth brush in-line hot runner structure includes an upper plate, a diverter plate and a support plate. A spacer is provided between the upper plate and the support plate, and the diverter plate is located between the upper plate and the support plate; It is characterized in that It also includes a hot nozzle, the upper end of the hot nozzle is connected between the diverter plate and the support plate, and the lower end extends out of the support plate, the hot nozzle is provided with at least two injection flow channels, and a valve needle is provided in the injection flow channel; A main pouring nozzle is provided in the middle of the upper plate, a diversion flow channel is provided on the diversion plate, the main pouring nozzle is connected to the diversion flow channel, and the diversion flow channel is connected to the injection flow channel.

2. The in-line hot runner structure of the rubber-bristled interdental brush according to claim 1 is characterized in that: The supporting plate is provided with a stepped hole, the hot nozzle is stepped, and the hot nozzle is located in the stepped hole of the supporting plate.

3. The in-line hot runner structure of the rubber-bristled interdental brush according to claim 1 or 2, characterized in that: The hot nozzle is provided with three injection flow channels.

4. The in-line hot runner structure of the rubber-bristled interdental brush according to claim 1 is characterized in that: The valve needle passes through the diverter plate and is connected to the cylinder located in the upper plate.

5. The in-line hot runner structure of the rubber-bristled interdental brush according to claim 1 is characterized in that: A heating coil is provided on the diverter plate.

6. The in-line hot runner structure of the rubber-bristled interdental brush according to claim 1 is characterized in that: The hot nozzle is provided with a heating coil on the annular surface.

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