CN215151414U - Side is advanced gluey hot and is chewed structure and hot runner system - Google Patents

Abstract

The utility model discloses a structure and hot runner system are chewed to side gluey heat of inclining wherein inclines to advance gluey heat and chews the structure and include: chew the body, chew the body and be provided with the sprue, the sprue is followed the upper end of chewing the body extends downwards. The bottom cover is provided with a first branch flow channel, one end of the first branch flow channel penetrates through the upper end part of the bottom cover, the bottom cover is detachably mounted at the lower end part of the mouth body, and the first branch flow channel is communicated with the main flow channel in the state that the bottom cover is mounted at the lower end part of the mouth body. And a plurality of chewing cores which are respectively arranged at intervals along the circumferential direction of the bottom cover in a detachable way, and are respectively communicated with the first branch flow channel under the state of being arranged on the bottom cover. The utility model discloses a structure is chewed to side gluey heat of advancing can reduce to a certain extent and chew the processing degree of difficulty of core.

Description

Side is advanced gluey hot and is chewed structure and hot runner system

Technical Field

The utility model relates to a hot runner technical field especially relates to side advances to glue heat and chews structure and hot runner system.

Background

In hot runner injection molding, some products require glue injection from the full hot runner on the side of the product. In order to reduce the size of the die and achieve efficient production, the product ranks are usually designed to be distributed in the circumferential direction. In contrast, a multi-point side glue inlet hot nozzle is needed to realize the full hot runner glue inlet injection molding from the side surface of the product.

In the existing side-feeding hot nozzle structure, although the size of the die is reduced to a certain extent, the complexity of the mounting structure is reduced. However, the existing side glue feeding hot nozzle structure still has the technical problem of difficult part processing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem of prior art to at least a certain extent. Therefore, the utility model provides a structure is chewed to side gluey heat is advanced, can reduce the processing degree of difficulty of part to a certain extent. Furthermore, the utility model discloses it glues the hot runner system who chews the structure to have still provided to use this kind of side to advance.

According to the utility model discloses structure is chewed to side gluey heat of first aspect, include: chew the body, chew the body and be provided with the sprue, the sprue is followed the upper end of chewing the body extends downwards. The bottom cover is provided with a first branch flow channel, one end of the first branch flow channel penetrates through the upper end part of the bottom cover, the bottom cover is detachably mounted at the lower end part of the mouth body, and the first branch flow channel is communicated with the main flow channel in the state that the bottom cover is mounted at the lower end part of the mouth body. And a plurality of chewing cores which are respectively arranged at intervals along the circumferential direction of the bottom cover in a detachable way, and are respectively communicated with the first branch flow channel under the state of being arranged on the bottom cover.

According to the hot structure of chewing of side advance gluey of first aspect, have following beneficial effect:

the core is composed of a plurality of cores and is detachably arranged on the bottom cover and is detachably arranged on the mouth body through the bottom cover. Therefore, the processing difficulty of the nozzle core can be reduced to a certain extent.

In some embodiments, the nozzle body is further provided with a plurality of second branch flow passages, the upper ends of the second branch flow passages are respectively communicated with the lower end of the main flow passage, each of the second branch flow passages extends obliquely relative to the axial direction of the nozzle body, and each of the second branch flow passages respectively penetrates through the lower end part of the nozzle body.

In some embodiments, the first branch flow passages include a plurality of first branch flow passages, one end of each of the first branch flow passages respectively penetrates through the upper end portion of the bottom cap, and each of the first branch flow passages respectively communicates with a corresponding one of the second branch flow passages in a state where the bottom cap is mounted to the lower end portion of the mouthpiece.

In some embodiments, the bottom cover is provided with a plurality of mounting cavities at intervals along the circumferential direction, the mounting cavities extend along the radial direction of the bottom cover and are communicated with the first branch flow channel, and the chewing cores are respectively accommodated in the mounting cavities.

In some embodiments, the bottom cover is provided with a plurality of mounting cavities at intervals along the circumferential direction, and the mounting cavities extend along the radial direction of the bottom cover and are respectively communicated with the corresponding one of the first branch flow passages.

In some embodiments, said core comprises a glue inlet extending in the axial direction of said core and a plurality of glue outlets communicating with said glue inlet and inclined with respect to said glue outlet.

In some embodiments, the mouthpiece is provided with locating formations by which the mouthpiece is located within the mounting chamber.

In some embodiments, the locating formation comprises a flat site on the peripheral surface of the chewing core.

In some embodiments, the chewing gum further comprises an outer casing into which the body is inserted, and a heating wire wrapped around the body within the outer casing.

According to the utility model discloses hot runner system of second aspect, including the mould for injection moulding, the side that is equipped with above-mentioned arbitrary one in the mould is glued hot structure of chewing.

Drawings

Fig. 1 is a schematic cross-sectional view of a hot runner system having a side-glue hot nozzle structure according to the present invention.

Fig. 2 is a bottom view of the chewing core of fig. 1.

Fig. 3 is a perspective view of the mouthpiece of fig. 1.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Fig. 1 is a schematic cross-sectional view of a hot runner system 200 with a side-entry hot nozzle structure 100, fig. 2 is a bottom view of nozzle core 103, and fig. 3 is a perspective view of nozzle core 103. In fig. 1, the mold 201 is indicated by a chain line for easy distinction. In fig. 3, the glue inlet hole 106 and the glue outlet hole 107 are shown in perspective for convenience of illustration. Referring to fig. 1 to 3, a side-entry hot nozzle structure 100 according to a first embodiment includes: a body 101, a bottom cap 102 and a plurality of cores 103. The nozzle body 101 is provided with a main flow passage 104, and the main flow passage 104 extends downward from the upper end of the nozzle body 101 in the axial direction (vertical direction in the drawing) of the nozzle body 101. The first branch flow passage 105 is provided in the base cap 102, one end of the first branch flow passage 105 penetrates the upper end portion of the base cap 102, the base cap 102 is detachably attached to the lower end portion of the nozzle body 101, and the first branch flow passage 105 communicates with the main flow passage 104 in a state where the base cap 102 is attached to the lower end portion of the nozzle body 101. A plurality of cores 103 are detachably attached to the under cap 102 at intervals in the circumferential direction of the under cap 102, and each core 103 communicates with the first branch flow path 105 in a state of being attached to the under cap 102.

In this embodiment, the chewing core 103 is composed of a plurality of pieces and is detachably attached to the mouth piece 102 and detachably attached to the body 101 through the mouth piece 102. Therefore, the difficulty of processing the core 103 can be reduced to some extent. Specifically, with respect to core 103, since one core 103 corresponds to the glue injection of only one mold gate, the channels (glue injection holes 106 and glue discharge holes 107 described later) in core 103 can be simplified, and the difficulty in processing core 103 can be reduced. In addition, the bottom cap 102 does not need to have a complicated flow passage structure inside the bottom cap 102, since the first branch flow passage 105 of the bottom cap 102 is only required to be communicated with the nozzle core 103 in a state where the nozzle core 103 is mounted, and thus the difficulty in processing the bottom cap 102 can be reduced.

In some embodiments, in order to more easily realize side glue feeding, the nozzle body 101 is further provided with a plurality of second branch flow passages 108, upper ends of the second branch flow passages 108 are respectively communicated with lower ends of the main flow passages 104, each second branch flow passage 108 extends obliquely with respect to the axial direction of the nozzle body 101, and each second branch flow passage 108 penetrates through a lower end portion of the nozzle body 101. Specifically, for example, nozzle body 101 has a substantially columnar shape, main flow channel 104 is provided at the center of nozzle body 101, and the axial center of main flow channel 104 and the axial line of nozzle body 101 substantially overlap. Main flow channel 104 extends from the upper end toward the lower end in the axial direction of nozzle body 101 to a position close to the lower end (does not penetrate the lower end). The angle of second branch flow channel 108 with respect to main flow channel 104 is, for example, between 30 ° and 60 °. This enables the molten rubber to be divided.

Although the above description has been made taking as an example the axial center of main flow passage 104 and the axial line of nozzle body 101 substantially overlap (i.e., main flow passage 104 extends linearly), the present invention is not limited to this. For example, the primary flow passage 104 may also extend helically. In this case, body 101 may be formed by 3D printing, for example.

In some embodiments, in order to more easily realize side glue feeding, the first branch flow passages 105 include a plurality of first branch flow passages 105, one end of each first branch flow passage 105 penetrates through the upper end portion of the bottom cap 102, and each first branch flow passage 105 is communicated with a corresponding one of the second branch flow passages 108 in a state that the bottom cap 102 is mounted to the lower end portion of the nozzle body 101. Specifically, the first branch flow path 105 extends obliquely with respect to the axial direction of the bottom cover 102, for example. The angle of inclination of the first branch flow path 105 with respect to the axial direction of the bottom cover 102 is substantially the same as the angle of inclination of the second branch flow path 108 with respect to the main flow path 104, and is, for example, between 30 ° and 60 °. Further, the pipe diameter of the first branch flow passage 105 is substantially the same as the pipe diameter of the second branch flow passage 108. In a state where the lower cap 102 is fitted to the lower end portion of the mouthpiece 101, a first branched flow path 105 and a second branched flow path 108 communicate. Further, the first branch flow passage 105 and the second branch flow passage 108 are substantially coaxial, so that the melt adhesive can flow conveniently. This enables the glue in main flow channel 104 to be dispersed in the circumferential direction of bottom cover 102 after passing through second branch flow channel 108 and first branch flow channel 105. Thereby more easily realizing side glue feeding.

The manner in which bottom cap 102 is attached to the lower end portion of mouth 101 is not particularly limited, and may be directly fastened to the lower end portion of mouth 101 by screws, for example.

Although the above description has been given with an example in which the molten metal in the main flow channel 104 is dispersed in the circumferential direction of the bottom cover 102 via the second branch flow channel 108 and the first branch flow channel 105, the present invention is not limited to this. For example, the main flow path 104 may directly penetrate the nozzle body 101 without providing the second branch flow path 108, and the first branch flow path 105 may also extend in the axial direction of the base cap 102 and directly communicate with the main flow path 104. The nozzle core 103 is embedded in the bottom cover 102 along the radial direction of the bottom cover 102 and is communicated with the first branch flow passage 105.

In some embodiments, for easy installation of the cores 103, the bottom cover 102 is provided with a plurality of mounting cavities 109 at intervals along the circumferential direction, the mounting cavities 109 extend along the radial direction of the bottom cover 102 and are communicated with the first branch flow passages 105, and each core 103 is accommodated in the mounting cavity 109. Specifically, the bottom cover 102 is also cylindrical, for example. Mounting cavity 109 may be perforated and each nozzle core 103 is inserted into mounting cavity 109. The mounting cavity 109 may be groove-shaped (see fig. 1), and the mounting cavity 109 penetrates the upper end of the bottom cover 102, whereby each core 103 can be directly placed in the mounting cavity 109 from the upper end of the bottom cover 102. In the case where the first branch flow path 105 has only one and extends in the axial direction of the bottom cover 102, each of the mounting cavities 109 extends directly to the middle of the bottom cover 102 and communicates with the first branch flow path 105. When the first branch flow path 105 includes a plurality of inclined portions with respect to the axial direction of the bottom cover 102, each of the mounting cavities 109 communicates with a corresponding one of the first branch flow paths 105 (see fig. 1). That is, each mounting cavity 109 may extend in the radial direction of the bottom cover 102 to a position communicating with the corresponding first branch flow passage 105. Thus, the core 103 may be directly fitted or placed on the bottom cover 102, and is easily attached. Further, since the structure of the first branch flow path 105 can be simplified, the difficulty in processing the bottom cover 102 can be reduced.

With continued reference to fig. 2 and 3, in some embodiments, the core 103 includes a glue inlet 106 and a plurality of glue outlets 107, the glue inlet 106 extending axially of the core 103, the glue outlets 107 communicating with the glue inlet 106 and being inclined relative to the glue outlets 107. Specifically, the mouthpiece 103 is substantially cylindrical. The mouth-piece 103 has a shoulder 110 as a large diameter end and a body 111 as a small diameter end. Shoulder 110 and a part of body 111 are accommodated in mounting cavity 109, and since shoulder 110 has a larger diameter than body 111, core 103 can be reliably held in bottom cap 102 in the state where bottom cap 102 is mounted to body 101. Glue inlet 106 is located in the middle of core 103, extends axially through shoulder 110 of core 103, and extends to approximately the middle of body 111 of core 103. Each glue outlet 107 is inclined with respect to the axial center of the core 103. One end of the glue outlet 107 is connected to the glue inlet 106 in the core 103, and the other end of the glue outlet 107 is connected to the other end of the main body 111 opposite to the shoulder 110. Since the core 103 is substantially cylindrical and the structure of the glue inlet hole 106 and the glue outlet hole 107 is simple, the core 103 can be easily processed. In addition, in this embodiment, since one strand of melt flowing into core 103 can be divided into a plurality of strands, the temperature of the melt in core 103 can also be ensured.

In some embodiments, to maintain the position of core 103 and bottom cap 102 accurately and to prevent misalignment of glue outlet 107 with respect to the mold gate, locating structure 112 is provided on core 103, and core 103 is positioned within mounting cavity 109 by locating structure 112. Specifically, for example, locating structure 112 comprises a flat site that opens onto the peripheral surface of core 103. The flat portion may be provided on shoulder 110 of core 103 or on main body 111 of core 103, provided that core 103 is prevented from rotating relative to mounting cavity 109.

With continued reference to fig. 1, in some embodiments, side-adhesive hot nozzle structure 100 further comprises outer cover 113 and heater wire 114, body 101 being inserted into outer cover 113, heater wire 114 wrapping body 101 within outer cover 113. Specifically, a spiral groove 115 is formed in the outer periphery of body 101, and heater wire 114 extends along spiral groove 115 and is wound around body 101. This enables body 101 to be heated effectively. In addition, in order to suppress heat loss from body 101, a gap is provided between the inner hole of casing 113 and body 101.

In order to reliably attach body 101, outer sleeve 113 is provided on its upper end surface with dowel holes (not shown) and fixing screw holes 116 fitted to body 101, and body 101 is positioned with respect to outer sleeve 113 by dowel pins (not shown) and fastened to outer sleeve 113 by screws. In addition, in order to easily detach body 101, screw hole 117 for a lifting nut may be provided at the upper end of body 101.

With continued reference to fig. 1, side-entry hot-nozzle structure 100 of the above embodiments may be incorporated into a hot-runner system 200. Hot runner system 200 according to the second embodiment includes a mold 201, mold 201 having a side-glue hot nozzle structure 100 according to any of the above embodiments installed therein.

Specifically, in mounting the side-feeding hot nozzle structure 100 of each of the above embodiments, the body 101 may be partially mounted in the mold 201, and then the base cap 102 to which the core 103 has been mounted may be locked to the body 101 from the lower end of the body 101. Therefore, side-glue hot-nozzle structure 100 of hot-runner system 200 of the present embodiment is also particularly easy to install or remove.

During injection molding, the melt enters main flow channel 104 of nozzle body 101 of the hot nozzle structure from a splitter plate (not shown) of hot runner system 200, enters a plurality of nozzles 103 through second branch flow channels 108 and first branch flow channels 105, and then enters the mold cavity from the side of mold 201 through the mold gate corresponding to each nozzle 103, thereby completing an injection molding process.

In hot runner system 200 of the present embodiment, in order to prevent molten adhesive from entering the open frame of mold 201, two seal portions 118 are provided, for example, in two positions in the axial direction on outer jacket 113 of side-entry hot nozzle structure 100. When the cover 113 is fitted into the open frame of the mold 201, the sealing portion 118 is substantially adhered to the mold 201. This can prevent the molten resin from entering the open frame of the mold 201.

In addition, in order to ensure the temperature of the nozzle core 103 of the side-feeding hot nozzle structure 100, a gap serving as a glue maintaining position 202 is arranged between the bottom of the bottom cover 102 and the open frame of the mold 201. When the hot-runner system 200 is first used, the molten glue will first fill the gap and then enter the mold cavity from the mold gate. Because this glue maintenance position 202 has better heat insulation effect, consequently can guarantee to chew the temperature of core 103, be convenient for the mould runner to advance gluey.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The structure is chewed to side advance gluey heat, its characterized in that includes:

the mouth body is provided with a main flow channel, and the main flow channel extends downwards from the upper end part of the mouth body;

the bottom cover is provided with a first branch flow channel, one end of the first branch flow channel penetrates through the upper end part of the bottom cover, the bottom cover is detachably mounted at the lower end part of the nozzle body, and the first branch flow channel is communicated with the main flow channel under the condition that the bottom cover is mounted at the lower end part of the nozzle body;

and a plurality of chewing cores which are respectively arranged at intervals along the circumferential direction of the bottom cover in a detachable way, and are respectively communicated with the first branch flow channel under the state of being arranged on the bottom cover.

2. The side-adhesive heat nozzle structure according to claim 1, wherein the nozzle body is further provided with a plurality of second branch flow passages, upper ends of the second branch flow passages are respectively communicated with lower ends of the main flow passages, each of the second branch flow passages extends obliquely with respect to an axial direction of the nozzle body, and each of the second branch flow passages respectively penetrates through a lower end portion of the nozzle body.

3. The side-adhesive hot nozzle structure of claim 2, wherein the first branch flow passages comprise a plurality of first branch flow passages, one end of each of the first branch flow passages extends through the upper end portion of the bottom cap, and each of the first branch flow passages communicates with a corresponding one of the second branch flow passages in a state where the bottom cap is mounted to the lower end portion of the nozzle body.

4. The side-adhesive hot nozzle structure of claim 1, wherein the bottom cover is circumferentially provided with a plurality of mounting cavities at intervals, the mounting cavities extend in the radial direction of the bottom cover and are communicated with the first branch flow passage, and the nozzle cores are respectively accommodated in the mounting cavities.

5. The side-adhesive hot nozzle structure of claim 3, wherein the bottom cover is circumferentially provided with a plurality of mounting cavities at intervals, and the mounting cavities extend in a radial direction of the bottom cover and are respectively communicated with a corresponding one of the first branch flow passages.

6. A side-feeding hot nozzle structure according to claim 4 or 5, characterized in that the nozzle core comprises a glue inlet hole and a plurality of glue outlet holes, the glue inlet hole extends along the axial direction of the nozzle core, and the glue outlet holes are communicated with the glue inlet hole and are inclined relative to the glue outlet hole.

7. A side-adhesive hot mouth structure according to claim 6, wherein a positioning structure is provided on the mouth core, and the mouth core is positioned in the mounting cavity by the positioning structure.

8. A side-adhesive hot mouth structure according to claim 7, wherein the locating structure comprises a flat site on the peripheral surface of the mouth core.

9. A side-adhesive hot mouth structure according to claim 1, further comprising an outer sleeve into which the mouth body is inserted, and a heating wire wrapped around the mouth body in the outer sleeve.

10. A hot-runner system comprising a mold for injection molding, wherein the mold incorporates a side-entry hot-nozzle structure according to any one of claims 1 to 9.

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