Anti-wiredrawing structure for high-speed injection molding of thin-wall plastic

Abstract

The utility model relates to the technical field of thin-wall plastic products, and discloses a thin-wall plastic high-speed injection molding anti-wiredrawing structure which comprises a main injection nozzle, a splitter plate is arranged on one side of the main injection nozzle, a hot nozzle dragging position is arranged on the side, away from the main injection nozzle, of the splitter plate, a nozzle core of the main injection nozzle is designed, the diameter of the nozzle core ranges from 1.8 mm to 3.5 mm, and the diameter of the nozzle core ranges from 1.5 mm to 3.5 mm. The diameter phi of the sprue ranges from 2.0 mm to 4 mm, a glue passing gap between the nozzle core and the sprue is made into a triangular flat position, and the nozzle core of the main injection nozzle is generally made of beryllium copper. According to the thin-wall plastic high-speed injection molding anti-wiredrawing structure, the glue passing gap between the nozzle core and the pouring gate is made into a triangular flat position, glue passing is facilitated, wiredrawing caused by the too large gap is prevented, the hot nozzle dragging position is arranged and used for limiting the hot nozzle body and the hot nozzle head, and a main nozzle conducts glue passing injection molding through the hot nozzle head and the hot nozzle core; the hot nozzle heating ring is used for heating colloid fluid in the hot nozzle core to prevent glue clamping, and the positioning ring is used for fixing the main injection nozzle and the junction box and is externally connected with a signal cable and a power supply cable.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin -walled plastic product technical field, concretely is a thin -walled plastic high -speed injection molding anti -wire drawing structure. BACKGROUND

[0002] Thin -walled injection molding technology is also called thin -walled plastic injection molding technology, and thin -walled plastic product is prone to wire drawing phenomenon when being demoulded after high -speed high -pressure injection molding, which affects demoulding. This situation not only damages the mold, but also increases labor costs.

[0003] In the conventional technology, thin -walled plastic product is prone to wire drawing phenomenon after high -speed high -pressure injection molding, and wire drawing phenomenon is prone to occur when demolding. If the wire drawing is left on the mold, the mold will be crushed when the mold is closed. If the wire drawing is left in the flow channel of the mold, it will be flushed into the cavity by the subsequent melt and affect the appearance of the product. This situation not only damages the mold, but also increases labor costs and has a great influence on the efficiency of production. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] The utility model aims at providing a thin -walled plastic high -speed injection molding anti -wire drawing structure to solve the problem of the above -mentioned background technology that if the wire drawing is left on the mold, the mold will be crushed when the mold is closed, and if the wire drawing is left in the flow channel of the mold, it will be flushed into the cavity by the subsequent melt and affect the appearance of the product. This situation not only damages the mold, but also increases labor costs.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a thin -walled plastic high -speed injection molding anti -wire drawing structure, comprising a main nozzle, the one side of main nozzle is provided with the shunt plate, the one side of shunt plate away from main nozzle is provided with hot nozzle drag position, the nozzle core design of main nozzle, the nozzle core diameter is φ1.8-3.5mm interval, the gate diameter is in φ2.0-4mm interval, the nozzle core and the gate overlap gap are made into triangular flat position, the nozzle core material of nozzle core is generally beryllium copper.

[0008] Preferably, the hot nozzle body is provided on the side away from the shunt plate of the hot nozzle drag position, the hot nozzle head is provided on the side away from the hot nozzle drag position of the hot nozzle body, the nozzle core and the gate overlap gap are made into triangular flat position, which facilitates overlap and prevents the gap from being too large.

[0009] Preferably, the hot nozzle nozzle head and the middle part of the hot nozzle body are provided with a hot nozzle nozzle core, the outer side of the hot nozzle body is provided with a hot nozzle heating ring, the hot nozzle position is arranged for limiting the hot nozzle body and the hot nozzle nozzle head, the main nozzle is glued by injection molding through the hot nozzle nozzle head and the hot nozzle nozzle core, the hot nozzle heating ring heats the glue fluid in the hot nozzle nozzle core, and the glue is prevented from being stuck.

[0010] Preferably, the outer side of the main nozzle top is provided with a panel, and the main nozzle and the panel are provided with a positioning ring in the middle, and the positioning ring is arranged for fixing the main nozzle.

[0011] Preferably, the side of the panel away from the positioning ring is provided with a heat insulation pad, and the heat insulation pad is arranged in the middle of the panel and the flow distribution plate, so that the panel is prevented from being scalded.

[0012] Preferably, the side of the flow distribution plate away from the main nozzle is provided with a center pin, and the side of the flow distribution plate away from the main nozzle is provided with an anti-rotation pin, and the center pin and the anti-rotation pin are arranged for fixing the hot runner plate.

[0013] Preferably, the side of the center pin is provided with a hot runner plate, and the outer side of the hot runner plate is provided with a junction box, and the junction box is arranged for external signal cable and power cable.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The thin-walled plastic high-speed injection molding anti-wire drawing structure, the nozzle core and the glue gap between the gate are made into triangular flat positions, the glue is convenient, the gap is prevented from being too large to draw wire, the hot nozzle position is arranged for limiting the hot nozzle body and the hot nozzle nozzle head, the main nozzle is glued by injection molding through the hot nozzle nozzle head and the hot nozzle nozzle core, the hot nozzle heating ring heats the glue fluid in the hot nozzle nozzle core, and the glue is prevented from being stuck, and the practicability of the device is effectively improved.

[0016] 2. The thin-walled plastic high-speed injection molding anti-wire drawing structure, the positioning ring is arranged for fixing the main nozzle, the junction box is arranged for external signal cable and power cable, the heat insulation pad can prevent the panel from being scalded, the center pin and the anti-rotation pin are arranged for fixing the hot runner plate, and the safety of the device is effectively improved. DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional structure schematic view of the utility model;

[0018] Figure 2 It is a side structure schematic view of the utility model;

[0019] Figure 3 It is a local sectional structure schematic view of the utility model;

[0020] Figure 4 It is a partial sectional structure schematic view of the utility model.

[0021] In the figure: 1, main nozzle; 2, shunt plate; 3, hot nozzle drag position; 4, hot nozzle body; 5, hot nozzle tip; 6, hot nozzle nozzle core; 7, hot nozzle heating ring; 8, panel; 9, positioning ring; 10, heat insulation pad; 11, center pin; 12, anti-rotation pin; 13, hot runner plate; 14, junction box. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of thin-wall plastic high-speed injection molding anti-wire-drawing structure, including main nozzle 1, the side of main nozzle 1 is provided with shunt plate 2, the side of shunt plate 2 away from main nozzle 1 is provided with hot nozzle drag position 3, nozzle core design of main nozzle 1, nozzle core diameter is φ1.8-3.5mm interval, gate diameter is in φ2.0-4mm interval, nozzle core and gate glue gap are made into triangle flat position, nozzle core nozzle core material of main nozzle 1 nozzle core is generally beryllium copper.

[0024] The hot nozzle body 4 is arranged on the side of the hot nozzle drag position 3 away from the flow distribution plate 2, the hot nozzle head 5 is arranged on the side of the hot nozzle body 4 away from the hot nozzle drag position 3, the hot nozzle head 5 and the middle part of the hot nozzle body 4 are provided with the hot nozzle nozzle core 6, the outer side of the hot nozzle body 4 is provided with the hot nozzle heating ring 7, the outer side of the top of the main nozzle 1 is provided with the panel 8, the middle part of the main nozzle 1 and the panel 8 is provided with the positioning ring 9, the side of the panel 8 away from the positioning ring 9 is provided with the heat insulation pad 10, the heat insulation pad 10 is arranged in the middle part of the panel 8 and the flow distribution plate 2, the side of the flow distribution plate 2 away from the main nozzle 1 is provided with the center pin 11, the side of the flow distribution plate 2 away from the main nozzle 1 is provided with the anti-rotation pin 12, the side of the center pin 11 is provided with the hot runner plate 13, the outer side of the hot runner plate 13 is provided with the junction box 14, when the thin-walled plastic high-speed injection molding anti-wire drawing structure is used, the gap between the nozzle core and the glue pouring gap is made into a triangular flat position, which facilitates glue pouring and prevents the gap from being too large to draw wires, the hot nozzle drag position 3 is arranged to limit the hot nozzle body 4 and the hot nozzle head 5, the main nozzle 1 is glued and injection molded through the hot nozzle head 5 and the hot nozzle nozzle core 6, the hot nozzle heating ring 7 heats the glue fluid in the hot nozzle nozzle core 6 to prevent the glue from being stuck, the positioning ring 9 is arranged to fix the main nozzle 1, the junction box 14 is arranged to externally connect the signal cable and the power cable, the heat insulation pad 10 is arranged to prevent the panel 8 from being burnt, and the center pin 11 and the anti-rotation pin 12 are arranged to fix the hot runner plate 13.

[0025] Working principle: when the thin-walled plastic high-speed injection molding anti-wire drawing structure is used, the gap between the nozzle core and the glue pouring gap is made into a triangular flat position, which facilitates glue pouring and prevents the gap from being too large to draw wires, the hot nozzle drag position 3 is arranged to limit the hot nozzle body 4 and the hot nozzle head 5, the main nozzle 1 is glued and injection molded through the hot nozzle head 5 and the hot nozzle nozzle core 6, the hot nozzle heating ring 7 heats the glue fluid in the hot nozzle nozzle core 6 to prevent the glue from being stuck, the positioning ring 9 is arranged to fix the main nozzle 1, the junction box 14 is arranged to externally connect the signal cable and the power cable, the heat insulation pad 10 is arranged to prevent the panel 8 from being burnt, and the center pin 11 and the anti-rotation pin 12 are arranged to fix the hot runner plate 13.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical scheme of the present application by ordinary skilled in the art do not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. A thin-walled plastic high-speed injection molded anti-wire-drawing structure comprising a main nozzle (1), characterized in that: The side of the main nozzle (1) is provided with a shunt plate (2), the side of the shunt plate (2) away from the main nozzle (1) is provided with a hot nozzle drag position (3), the nozzle core of the main nozzle (1) is designed, the nozzle core diameter is in the range of φ1.8-3.5mm, the gate diameter is in the range of φ2.0-4mm, the nozzle core and the gate are made into a triangular flat position, and the nozzle core material of the main nozzle (1) is generally beryllium copper.

2. A thin-walled plastic high-speed injection molded anti-wire-drawing structure according to claim 1, characterized in that: The side of the hot nozzle drag position (3) away from the shunt plate (2) is provided with a hot nozzle body (4), and the side of the hot nozzle body (4) away from the hot nozzle drag position (3) is provided with a hot nozzle head (5).

3. A thin-walled plastic high-speed injection molded anti-wire-drawing structure according to claim 2, characterized in that: The middle part of the hot nozzle head (5) and the hot nozzle body (4) is provided with a hot nozzle core (6), and the outer side of the hot nozzle body (4) is provided with a hot nozzle heating ring (7).

4. The thin-walled plastic high-speed injection molded anti-wire-drawing structure according to claim 3, characterized in that: The outer side of the top of the main nozzle (1) is provided with a panel (8), and the middle part of the main nozzle (1) and the panel (8) is provided with a positioning ring (9).

5. A thin-walled plastic high-speed injection molded anti-wire-drawing structure according to claim 4, characterized in that: The side of the panel (8) away from the positioning ring (9) is provided with a heat insulation pad (10), and the heat insulation pad (10) is arranged in the middle part of the panel (8) and the shunt plate (2).

6. A thin-walled plastic high-speed injection molded anti-wire-drawing structure according to claim 5, characterized in that: The side of the shunt plate (2) away from the main nozzle (1) is provided with a center pin (11), and the side of the shunt plate (2) away from the main nozzle (1) is provided with an anti-rotation pin (12).

7. A thin-walled plastic high-speed injection molded anti-wire-drawing structure according to claim 6, characterized in that: The side of the center pin (11) is provided with a hot runner plate (13), and the outer side of the hot runner plate (13) is provided with a junction box (14).

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