A side-feed glue hot nozzle

Abstract

A side glue feeding hot nozzle comprises a body, a heating sleeve, a first hot nozzle, a second hot nozzle, a glue sealing ring, a cover plate and a locking part. The body is provided with a first flow channel and a second flow channel. The first flow channel is communicated with one end of the second flow channel. A first nozzle core is placed in the body. The first nozzle core is provided with a third flow channel. One end of the third flow channel is communicated with the other end of the second flow channel. A second nozzle core is attached to the side surface of the first nozzle core. The second nozzle core is provided with a fourth flow channel. The fourth flow channel is communicated with the other end of the third flow channel. The glue sealing ring is installed on the second nozzle core. The glue sealing ring is provided with a first glue sealing surface and a second glue sealing surface. The first glue sealing surface is vertically arranged. The second glue sealing surface is horizontally arranged. According to the above content, the utility model provides a side glue feeding hot nozzle. The side glue feeding hot nozzle in the prior art is usually sealed by a glue sealing ring with a single sealing surface. When facing a high-pressure injection environment or a slight deformation of a mold, a gap is easily generated on the single sealing surface, thereby causing the problem of leakage of plastic melt.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a side-entry hot nozzle. Background Technology

[0002] In the field of plastic injection molding, hot runner systems are widely used because they can improve production efficiency and reduce material waste. Side-entry hot nozzles, as a key component of the hot runner system, are used to introduce molten plastic from the hot runner manifold into the mold cavity; their sealing performance directly affects the quality and production stability of the injection-molded products.

[0003] However, existing side-entry hot nozzles typically use a sealing ring with a single sealing surface for sealing. When faced with a high-pressure injection environment or slight mold deformation, gaps can easily appear on the single sealing surface, leading to leakage of molten plastic. Utility Model Content

[0004] The purpose of this invention is to propose a side-injection hot nozzle, which solves the problem that existing side-injection hot nozzles typically use a sealing ring with a single sealing surface for sealing. When facing a high-pressure injection environment or slight deformation of the mold, gaps are easily formed on the single sealing surface, leading to leakage of molten plastic.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A side-injection hot nozzle includes a body, a heating sleeve, a first hot nozzle, a second hot nozzle, a sealing ring, a cover plate, and a locking element;

[0007] The main body is provided with a first flow channel and a second flow channel, the first flow channel is connected to one end of the second flow channel, the first nozzle is placed on the main body, the first nozzle is provided with a third flow channel, one end of the third flow channel is connected to the other end of the second flow channel, the second nozzle is attached to the side of the first nozzle, and the second nozzle is provided with a fourth flow channel, the fourth flow channel is connected to the other end of the third flow channel.

[0008] The heating sleeve is fitted around the outer periphery of the body, and the sealing ring is installed on the second nozzle core. The sealing ring has a first sealing surface and a second sealing surface. The first sealing surface is vertically arranged, and the second sealing surface is horizontally arranged. The second sealing surface and the first sealing surface are used to fit against the inner wall of the outer side of the mold injection port.

[0009] The cover plate abuts against the bottom surface of the first nozzle core, one end of the locking member is installed on the cover plate, and the other end of the locking member is installed on the body.

[0010] Furthermore, the sealing ring includes a first sealing block and a second sealing block;

[0011] One end of the second sealing block is connected to the first sealing block, the other end of the second sealing block is provided with the first sealing surface, and the outer periphery of the second sealing block is provided with the second sealing surface.

[0012] Specifically, the second nozzle core includes a connecting block, a first mounting block, and a second mounting block;

[0013] One end of the first assembly block is connected to the connecting block, the first assembly block is connected to the second assembly block, and the fourth flow channel is located inside the connecting block, the first assembly block, and the second assembly block;

[0014] The first sealing block is fitted around the outer periphery of the first set block, and the second sealing block is fitted around the outer periphery of the second set block.

[0015] Preferably, the connecting block is provided with an adhesive inlet, the second assembly block is provided with an adhesive outlet, and the adhesive inlet is connected to the adhesive outlet through the fourth flow channel.

[0016] In some embodiments, the first flow channel and the second flow channel are arranged perpendicularly.

[0017] Furthermore, the second flow channel, the third flow channel, and the fourth flow channel are respectively arranged horizontally.

[0018] Specifically, the body is provided with a mounting groove, and the mounting groove is provided with a first inclined surface. The first nozzle is placed in the mounting groove, and the first nozzle is provided with a second inclined surface, which is attached to the first inclined surface.

[0019] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0020] The body, heating jacket, first hot nozzle, third flow channel, second hot nozzle, fourth flow channel, sealing ring, first sealing surface, second sealing surface, cover plate and locking parts adopt a double-sided sealing structure to prevent plastic melt from leaking out, thereby improving the sealing performance of side-entry hot nozzle injection molding. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a side-entry hot nozzle according to one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the first flow channel and the second flow channel according to one embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the sealing ring according to one embodiment of the present invention;

[0024] Figure 4This is a schematic diagram of the glue inlet and glue outlet of one embodiment of the present invention;

[0025] The components include: body 1, first flow channel 11, second flow channel 12, mounting groove 13, first inclined surface 14, heating sleeve 2, first hot nozzle 3, third flow channel 31, second inclined surface 32, second hot nozzle 4, fourth flow channel 41, connecting block 42, glue inlet 421, first set block 43, second set block 44, glue outlet 441, sealing ring 5, first sealing block 51, second sealing block 52, first sealing surface 521, second sealing surface 522, cover plate 6, and locking component 7. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0028] In one embodiment of this utility model, such as Figure 1-4As shown, a side-applied hot nozzle includes a body 1, a heating sleeve 2, a first hot nozzle 3, a second hot nozzle 4, a sealing ring 5, a cover plate 6, and a locking member 7. The body 1 has a first flow channel 11 and a second flow channel 12, the first flow channel 11 being connected to one end of the second flow channel 12. The first nozzle core 3 is placed on the body 1, and the first nozzle core 3 has a third flow channel 31, one end of which is connected to the other end of the second flow channel 12. The second nozzle core 4 is attached to the side of the first nozzle core 3, and the second nozzle core 4 has a fourth flow channel 41, which is connected to... The other end of the third flow channel 31 is connected; the heating sleeve 2 is fitted around the outer periphery of the body 1; the sealing ring 5 is installed on the second nozzle core 4; the sealing ring 5 has a first sealing surface 521 and a second sealing surface 522; the first sealing surface 521 is vertically arranged; the second sealing surface 522 is horizontally arranged; the second sealing surface 522 and the first sealing surface 521 are used to fit against the inner wall of the outside of the mold injection port; the cover plate 6 abuts against the bottom surface of the first nozzle core 3; one end of the locking member 7 is installed on the cover plate 6; and the other end of the locking member 7 is installed on the body 1.In this embodiment, the heating sleeve 2 is specifically a commercially available copper sleeve heater. There are two of each of the second flow channel 12, the first nozzle 3, the second nozzle 4, the sealing ring 5, and the locking member 7. The two second flow channels 12 are located on both sides of the first flow channel 11, and the bottom end of the first flow channel 11 is connected to one end of each of the two second flow channels 12. During installation, the heating sleeve 2 is inserted from the bottom of the body 1, so that it fits around the outer periphery of the body 1, thereby facilitating heating of the body 1 and ensuring the thermoplastic melt inside the body 1. The body remains in a flowable state. The body 1 is then placed inside the mold. Subsequent installation requires adaptation to the mold body. The two first nozzle cores 3 are placed inside the bottom of the body 1. Then, the two sealing rings 5 ​​are installed on the two second nozzle cores 4. The sealing rings 5 ​​prevent leakage of the molten plastic. One end of each of the two second nozzle cores 4 is then placed against the outer surface of the first nozzle core 3, connecting the second flow channel 12, the third flow channel 31, and the fourth flow channel sequentially. The other end of the second nozzle core 4 is then pressed against the inner wall of the mold through the sealing rings 5. The first sealing surface 521 and the second sealing surface 522 are respectively attached to the two inner walls outside the injection port of the mold. The two inner walls are vertically arranged corner inner walls. Finally, the cover plate 6 is placed against the bottom surface of the two first nozzle cores 3. One end of the locking member 7 is installed on the cover plate 6, and the other end of the locking member 7 is installed on the body 1. The locking member 7 is a locking screw. Then, by rotating the locking member 7, the cover plate 6 and the body 1 are brought closer together to clamp and fix the first nozzle core 3. During operation, the plastic melt flows sequentially through the first flow channel 11, the second flow channel 12, and the third flow channel 13. The flow channels 31 and 41 are used to inject the molten plastic into the molding cavity of the mold from the outlet of the second nozzle 4. The first sealing surface 51 and the second sealing surface 52 of the sealing ring 5 play a sealing role to prevent the molten plastic from leaking out. This utility model adopts a double-sided sealing structure through the body 1, heating sleeve 2, first hot nozzle 3, third flow channel 31, second hot nozzle 4, fourth flow channel 41, sealing ring 5, first sealing surface 521, second sealing surface 522, cover plate 6 and locking member 7 to prevent the molten plastic from leaking out, thereby improving the sealing performance of the side-injection hot nozzle.

[0029] like Figure 2-4As shown, the sealing ring 5 includes a first sealing block 51 and a second sealing block 52; one end of the second sealing block 52 is connected to the first sealing block 51, the other end of the second sealing block 52 is provided with the first sealing surface 521, and the outer periphery of the second sealing block 52 is provided with the second sealing surface 522. In this embodiment, the first sealing block 51 and the second sealing block 52 are an integral structure. One end of the second sealing block 52 is connected to the first sealing block 51, the other end of the second sealing block 52 is provided with the first sealing surface 521, and the outer periphery of the second sealing block 52 is provided with the second sealing surface 522. Both sealing surfaces are provided on the second sealing block 52, which makes processing more convenient and faster.

[0030] like Figure 2-4 As shown, the second nozzle core 4 includes a connecting block 42, a first fitting block 43, and a second fitting block 44. One end of the first fitting block 43 is connected to the connecting block 42, and the first fitting block 43 is connected to the second fitting block 44. The fourth flow channel 41 is located inside the connecting block 42, the first fitting block 43, and the second fitting block 44. The first sealing block 51 is fitted around the outer periphery of the first fitting block 43, and the second sealing block 52 is fitted around the outer periphery of the second fitting block 44. In this embodiment, the connecting block 42, the first fitting block 43, and the second fitting block 44 are an integral structure. When the sealing ring 5 is installed on the second nozzle core 4, specifically, the first sealing block 51 is fitted around the outer periphery of the first fitting block 43, and the second sealing block 52 is fitted around the outer periphery of the second fitting block 44, which is convenient and quick. The first sealing surface 521 and the second sealing surface 522 are vertically arranged, thereby respectively fitting against the inner wall of the mold, improving the sealing performance and preventing glue leakage.

[0031] like Figure 2-4 As shown, the connecting block 42 is provided with a glue inlet 421, and the second assembly block 44 is provided with a glue outlet 441. The glue inlet 421 is connected to the glue outlet 441 through the fourth flow channel 41. In this embodiment, there are two glue outlets 411. During operation, the molten plastic flows sequentially through the first flow channel 11, the second flow channel 12, and the third flow channel 13, and enters the fourth flow channel 41 from the glue inlet 421. Finally, it is injected into the molding cavity of the mold from the two glue outlets 441. Providing two glue outlets 441 can increase the glue output, which is beneficial to improving the glue injection efficiency.

[0032] like Figure 2As shown, the first flow channel 11 and the second flow channel 12 are vertically arranged. In this embodiment, the first flow channel 11 is vertically arranged and the second flow channel 12 is horizontally arranged. During operation, the molten plastic flows from the top to the bottom of the first flow channel 11. During the downward flow, the molten plastic first collides with the inner wall of the bottom of the first flow channel 11, thereby achieving the purpose of buffering the flowing molten plastic. Then, it flows smoothly to the left and right sides of the second flow channel 12, avoiding excessive force of the molten plastic that could cause misalignment of the nozzle core and thus lead to leakage.

[0033] like Figure 2 As shown, the second flow channel 12, the third flow channel 31, and the fourth flow channel 41 are all horizontally arranged. In this embodiment, the second flow channel 12, the third flow channel 31, and the fourth flow channel 41 are all horizontally arranged and connected horizontally in sequence, so that the plastic melt can flow smoothly in the horizontal direction.

[0034] like Figure 2-3 As shown, the main body 1 is provided with a mounting groove 13, and the mounting groove 13 is provided with a first inclined surface 14. The first nozzle 3 is placed in the mounting groove 13, and the first nozzle 3 is provided with a second inclined surface 32, which is attached to the first inclined surface 14. In this embodiment, during installation, two first nozzles 3 are placed in two mounting grooves 13, and one end of two second nozzles 4 is attached to the outer side of the first nozzle 3. The other end of the second nozzle 4 is pressed against the inner wall of the mold through a sealing ring 5. Then, the cover plate 6 and the locking member 7 are installed in sequence. During the process of twisting the locking member 7 to bring the cover plate 6 closer to the main body 1, under the action of the first inclined surface 14 and the second inclined surface 32, the first nozzle 3 will move outward and squeeze the second nozzle 4, thereby making the horizontal connection between the main body 1, the first nozzle 3 and the second nozzle 4 more compact and stable, and less prone to misalignment.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A side-inlet hot nozzle, characterized in that: Includes the main body, heating jacket, first nozzle core, second nozzle core, sealing ring, cover plate and locking components; The main body is provided with a first flow channel and a second flow channel, the first flow channel is connected to one end of the second flow channel, the first nozzle is placed on the main body, the first nozzle is provided with a third flow channel, one end of the third flow channel is connected to the other end of the second flow channel, the second nozzle is attached to the side of the first nozzle, and the second nozzle is provided with a fourth flow channel, the fourth flow channel is connected to the other end of the third flow channel. The heating sleeve is fitted around the outer periphery of the body, and the sealing ring is installed on the second nozzle core. The sealing ring has a first sealing surface and a second sealing surface. The first sealing surface is vertically arranged, and the second sealing surface is horizontally arranged. The second sealing surface and the first sealing surface are used to fit against the inner wall of the outer side of the mold injection port. The cover plate abuts against the bottom surface of the first nozzle core, one end of the locking member is installed on the cover plate, and the other end of the locking member is installed on the body.

2. The side-feed hot nozzle according to claim 1, characterized in that: The sealing ring includes a first sealing block and a second sealing block; One end of the second sealing block is connected to the first sealing block, the other end of the second sealing block is provided with the first sealing surface, and the outer periphery of the second sealing block is provided with the second sealing surface.

3. The side-feed hot nozzle according to claim 2, characterized in that: The second nozzle core includes a connecting block, a first fitting block, and a second fitting block; One end of the first assembly block is connected to the connecting block, the first assembly block is connected to the second assembly block, and the fourth flow channel is located inside the connecting block, the first assembly block, and the second assembly block; The first sealing block is fitted around the outer periphery of the first set block, and the second sealing block is fitted around the outer periphery of the second set block.

4. A side-feed adhesive hot nozzle according to claim 3, characterized in that: The connecting block is provided with an adhesive inlet, and the second assembly block is provided with an adhesive outlet. The adhesive inlet is connected to the adhesive outlet through the fourth flow channel.

5. A side-feed adhesive hot nozzle according to claim 1, characterized in that: The first flow channel and the second flow channel are arranged perpendicularly.

6. A side-feed adhesive hot nozzle according to claim 5, characterized in that: The second flow channel, the third flow channel, and the fourth flow channel are respectively arranged horizontally.

7. A side-feed adhesive hot nozzle according to claim 1, characterized in that: The main body is provided with a mounting groove, and the mounting groove is provided with a first inclined surface. The first nozzle is placed in the mounting groove, and the first nozzle is provided with a second inclined surface, which is attached to the first inclined surface.

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