Soaking hot runner structure

Abstract

The utility model discloses a soaking hot runner structure which comprises a splitter plate, a driving cylinder body and a valve needle, a sub-runner is arranged in the splitter plate, a hot nozzle is arranged at the lower end of the splitter plate corresponding to the sub-runner, a heating sleeve is sleeved outside the hot nozzle, a heating wire I is arranged on the inner side of the heating sleeve, and a shunting part is arranged in the hot nozzle. An inner sleeve component is arranged in a center hole of the shunting component, and a heating wire II is arranged at the contact part of the center hole wall of the shunting component and the inner sleeve component. Molten fluid is shunted through the shunting part, concentrated flowing of the fluid can be avoided, the shunted molten fluid is heated through the first heating wire and the second heating wire, due to the fact that the molten fluid is shunted, the molten fluid is heated more easily, compared with the concentrated flowing fluid, heating is more uniform, and the injection molding quality can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner processing, in particular to a heat-equalizing hot runner structure. Background Art

[0002] Injection molding technology has become a crucial industrial production method. Its advantages include high production speed, high efficiency, and dimensional precision, making it widely used in the production of plastic parts. The manifold in an injection mold, also known as a hot runner manifold, is the central component of a hot runner structure with variable injection points in multi-cavity molds. It distributes the plastic melt from the main nozzle through the runner to each injection nozzle. The manifold ensures uniform filling of the mold cavity and balanced plastic flow.

[0003] However, in actual use, the existing hot runner device is mainly heated by the heating mechanism of the ring sleeve, which causes uneven temperature of the molten fluid inside the device, resulting in locally high temperature of the fluid, thereby affecting the injection molding quality.

[0004] Therefore, those skilled in the art provide a heat-equalizing hot runner structure to solve the problems raised in the above background technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat-equalizing hot runner structure to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A heat-equalizing hot runner structure comprises a diverter plate, a driving cylinder and a valve needle, a diverter channel is arranged inside the diverter plate, a hot nozzle is arranged at the lower end of the diverter plate corresponding to the diverter channel, a heating sleeve is arranged on the outside of the hot nozzle, a heating wire 1 is arranged on the inside of the heating sleeve, a diverter component is arranged inside the hot nozzle, an inner sleeve component is arranged in the center hole of the diverter component, and a heating wire 2 is arranged at the contact point between the center hole wall of the diverter component and the inner sleeve component.

[0008] Preferably: the hot nozzle includes a hot nozzle body, a first threaded portion, a limiting portion and a second threaded portion; the limiting portion is integrally provided on the top of the hot nozzle body, and the second threaded portion is integrally provided in the middle of the top of the limiting portion; the first threaded portion is provided on the upper part of the hot nozzle body, and the first threaded portion is located below the limiting portion; the outer diameter of the first threaded portion is larger than the outer diameter of the hot nozzle body; an injection channel is provided at the center of the hot nozzle body, the first threaded portion, the limiting portion and the second threaded portion; the second threaded portion of the hot nozzle is threadedly connected to the diverter port at the lower part of the diverter plate, and the limiting portion plays a limiting role in installation.

[0009] Preferably, a heating wire is wound around the inner side of the heating sleeve, and the upper part of the heating sleeve is threadedly connected to a threaded part on the hot nozzle. The threaded connection structure is adopted to facilitate the disassembly of the heating sleeve and facilitate subsequent maintenance and replacement.

[0010] Preferably: the diversion component includes a diversion body, a diversion groove and a mounting hole, the diversion body is a columnar structure, and diversion grooves that pass through the diversion body up and down are evenly spaced around the side of the diversion body. The mounting hole is opened at the central axis of the diversion body, and the mounting hole is a stepped through hole that is conductive up and down, and the step is located at the lower part of the mounting hole. The small diameter section of the mounting hole is provided with an internal thread, and a heating wire 2 is wound around the inside of the mounting hole. The outer wall of the diversion body is close to the inner wall of the injection channel of the hot nozzle, and the diversion groove and the inner wall of the injection channel of the hot nozzle form a diversion channel to divert the molten fluid, which is conducive to uniform heating of the molten fluid.

[0011] Preferably: the inner sleeve component includes a sleeve, a limiting end and a threaded head, the limiting end is integrally provided at the upper end of the sleeve, and the threaded head is integrally provided at the lower end of the sleeve, the inner sleeve component is threadedly connected to the small diameter section of the mounting hole through the threaded head, the center hole of the sleeve extends to the limiting end and the threaded head, and the aperture of the center hole is adapted to the outer diameter of the valve needle.

[0012] Preferably, a valve needle is provided at the lower portion of the driving cylinder body, and the lower portion of the valve needle extends to the vertical section of the branch channel and passes through the central through hole of the internal kit to the nozzle of the hot nozzle.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a diversion component to divert the molten fluid, which can avoid the concentrated flow of the fluid. The molten fluid after diversion is heated by the provided heating wire 1 and heating wire 2. Since the molten fluid is diverted, it is easier to be heated, and compared with the concentrated flow of the fluid, the heating is more even, which can effectively ensure the quality of injection molding.

[0015] 2. The diverter groove provided in the present invention forms a diverter flow channel with the inner wall of the injection flow channel of the hot nozzle, which diverts the molten fluid and is conducive to uniform heating of the molten fluid.

[0016] 3. The upper part of the heating sleeve provided in the utility model is threadedly connected to the threaded part on the hot nozzle. The threaded connection structure facilitates the disassembly of the heating sleeve and facilitates subsequent maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the structural diagram of the heat-equalizing hot runner structure;

[0018] Figure 2 Schematic diagram of the structure of the heat-equalizing hot runner structure;

[0019] Figure 3 It is the structural diagram of the heating jacket in the heat-equalizing hot runner structure;

[0020] Figure 4 It is the structural diagram of the hot nozzle in the heat-uniform hot runner structure;

[0021] Figure 5 This is the connection structure diagram of the heating jacket and the hot nozzle in the heat-uniform hot runner structure;

[0022] Figure 6 A top view of the connection between the diverter component and the inner sleeve component in the heat-dissipating hot runner structure;

[0023] Figure 7 It is a top view of the diversion component in the heat-uniform hot runner structure;

[0024] Figure 8 The state of the diversion components in the heat-uniform hot runner structure Figure 1 ;

[0025] Figure 9 The state of the diversion components in the heat-uniform hot runner structure Figure 2 ;

[0026] Figure 10 It is a structural diagram of the inner sleeve components in the heat-equalizing hot runner structure.

[0027] In the figure: diverter plate 1, drive cylinder 2, valve needle 3, hot nozzle 4, hot nozzle body 41, threaded part 1 42, limit part 43, threaded part 2 44, heating sleeve 5, inner sleeve component 6, sleeve 61, limit end 62, threaded head 63, diverter component 7, diverter body 71, diverter groove 72, mounting hole 73, heating wire 1 8, heating wire 2 9. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1 to 10In the embodiment of the present invention, a heat-uniform hot runner structure includes a diverter plate 1, a driving cylinder 2 and a valve needle 3. A diverter is arranged inside the diverter plate 1, and a hot nozzle 4 is arranged at the lower end of the diverter plate 1 corresponding to the diverter. A heating sleeve 5 is provided on the outside of the hot nozzle 4, and a heating wire 8 is provided on the inside of the heating sleeve 5. A diverter component 7 is provided inside the hot nozzle 4, and an inner sleeve component 6 is provided in the center hole of the diverter component 7. A heating wire 2 9 is provided at the contact point between the center hole wall of the diverter component 7 and the inner sleeve component 6. The molten fluid material flows into the hot nozzle 4 through the diverter channel, and the molten fluid is diverted by the diverter component 7 to avoid concentrated flow of the fluid. The molten fluid after diversion is heated by the provided heating wire 1 8 and heating wire 2 9. Since the molten fluid is diverted, it is easier to be heated, and compared with the concentrated flow of the fluid, the heating is more evenly distributed, which can effectively ensure the quality of injection molding.

[0030] The hot nozzle 4 includes a hot nozzle body 41, a threaded portion 1 42, a limiting portion 43 and a threaded portion 2 44. The limiting portion 43 is integrally provided on the top of the hot nozzle body 41, and the threaded portion 2 44 is integrally provided at the middle of the top of the limiting portion 43. The threaded portion 1 42 is provided on the upper part of the hot nozzle body 41, and the threaded portion 1 42 is located below the limiting portion 43. The outer diameter of the threaded portion 1 42 is larger than the outer diameter of the hot nozzle body 41. An injection channel is provided at the center of the hot nozzle body 41, the threaded portion 1 42, the limiting portion 43 and the threaded portion 2 44. The threaded portion 2 44 of the hot nozzle 4 is threadedly connected to the diverter port at the lower part of the diverter plate 1, and the limiting portion 43 serves as a limiting installation function.

[0031] A heating wire 8 is wound around the inner side of the heating sleeve 5, and the upper part of the heating sleeve 5 is threadedly connected to the threaded part 41 on the hot nozzle 4. The threaded connection structure is convenient for disassembly of the heating sleeve 5 and facilitates subsequent maintenance and replacement.

[0032] The diverter component 7 includes a diverter body 71, a diverter groove 72 and a mounting hole 73. The diverter body 71 is a columnar structure. Diverter grooves 72 are evenly spaced around the side of the diverter body 71 and are connected vertically. A mounting hole 73 is provided at the center axis of the diverter body 71. The mounting hole 73 is a stepped through hole that is connected vertically. The step is located at the lower part of the mounting hole 73. The small diameter section of the mounting hole 73 is provided with an internal thread. A heating wire 9 is wound around the inside of the mounting hole 73. The outer wall of the diverter body 71 is tightly attached to the inner wall of the injection channel of the hot nozzle 4 and is welded and fixed. The diverter groove 72 and the inner wall of the injection channel of the hot nozzle 4 form a diverter channel to divert the molten fluid, which is conducive to uniform heating of the molten fluid.

[0033] The inner sleeve component 6 includes a sleeve 61, a limiting end 62 and a threaded head 63. The limiting end 62 is integrally provided at the upper end of the sleeve 61, and the threaded head 63 is integrally provided at the lower end of the sleeve 61. The inner sleeve component 6 is threadedly connected to the small diameter section of the mounting hole 73 through the threaded head 63. The center hole of the sleeve 61 extends to the limiting end 62 and the threaded head 63. The aperture of the center hole is adapted to the outer diameter of the valve needle 3. The valve needle 3 slides relative to the inner sleeve component 6 through the center hole.

[0034] A valve needle 9 is provided at the lower portion of the driving cylinder 2 , and the lower portion of the valve needle 9 extends to the vertical section of the branch channel and passes through the central through hole of the internal kit to the nozzle of the hot nozzle 4 .

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A heat-equalizing hot runner structure, comprising a manifold (1), a drive cylinder (2) and a valve needle (3), characterized in that: A diversion channel is provided inside the diversion plate (1), a hot nozzle (4) is provided at the lower end of the diversion plate (1) corresponding to the diversion channel, a heating sleeve (5) is provided on the outside of the hot nozzle (4), a heating wire (8) is provided on the inside of the heating sleeve (5), a diversion component (7) is provided inside the hot nozzle (4), an inner sleeve component (6) is provided in the center hole of the diversion component (7), and a heating wire (9) is provided at the contact point between the center hole wall of the diversion component (7) and the inner sleeve component (6).

2. The heat-equalizing hot runner structure according to claim 1, characterized in that: The hot nozzle (4) comprises a hot nozzle body (41), a threaded portion 1 (42), a limiting portion (43) and a threaded portion 2 (44); the limiting portion (43) is integrally provided at the top of the hot nozzle body (41); the threaded portion 2 (44) is integrally provided at the middle of the top of the limiting portion (43); the threaded portion 1 (42) is provided at the top of the hot nozzle body (41); the threaded portion 1 (42) is located below the limiting portion (43); the outer diameter of the threaded portion 1 (42) is larger than the outer diameter of the hot nozzle body (41); an injection flow channel is provided at the center of the hot nozzle body (41), the threaded portion 1 (42), the limiting portion (43) and the threaded portion 2 (44); the threaded portion 2 (44) of the hot nozzle (4) is threadedly connected to the diversion channel opening at the lower part of the diversion plate (1); the limiting portion (43) plays a role in limiting the installation.

3. The heat-equalizing hot runner structure according to claim 1, characterized in that: A heating wire (8) is wound around the inner side of the heating sleeve (5), and the upper part of the heating sleeve (5) is threadedly connected to a threaded portion (42) on the hot nozzle (4). The threaded connection structure facilitates the disassembly of the heating sleeve (5) and facilitates subsequent maintenance and replacement.

4. The heat-equalizing hot runner structure according to claim 1, characterized in that: The diversion component (7) includes a diversion body (71), a diversion groove (72) and a mounting hole (73). The diversion body (71) is a columnar structure. The diversion groove (72) is evenly spaced around the side of the diversion body (71) and is connected vertically. The mounting hole (73) is opened at the center axis of the diversion body (71). The mounting hole (73) is a stepped through hole connected vertically, and the step is located at the lower part of the mounting hole (73). The small diameter section of the mounting hole (73) is provided with an internal thread. The inner side of the mounting hole (73) is wound with a heating wire 2 (9). The outer wall of the diversion body (71) is in close contact with the inner wall of the injection channel of the hot nozzle (4). The diversion groove (72) and the inner wall of the injection channel of the hot nozzle (4) form a diversion channel to divert the molten fluid, which is conducive to uniform heating of the molten fluid.

5. The heat-equalizing hot runner structure according to claim 1, characterized in that: The inner sleeve component (6) includes a sleeve (61), a limiting end (62) and a threaded head (63); the limiting end (62) is integrally provided at the upper end of the sleeve (61), and the threaded head (63) is integrally provided at the lower end of the sleeve (61); the inner sleeve component (6) is threadedly connected to the small-diameter section of the mounting hole (73) through the threaded head (63); the center hole of the sleeve (61) extends toward the limiting end (62) and the threaded head (63); and the diameter of the center hole is adapted to the outer diameter of the valve needle (3).

6. The heat-equalizing hot runner structure according to claim 1, characterized in that: A valve needle (3) is provided at the lower portion of the driving cylinder body (2), and the lower portion of the valve needle (3) extends to the vertical section of the branch channel and passes through the central through hole of the internal kit to the nozzle of the hot nozzle (4).

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