Glue nozzle beneficial to improving injection molding quality
By setting a cold flow head at the end of the injection plastic mouth, the plastic raw material is injected into the mold, which solves the impact of high temperature glue mouth on the product surface, and achieves the effect of improving the quality of injection molding products.
Patent Information
- Application Number
- CN202421000052.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-09
AI Technical Summary
During the injection molding process, the high-temperature rubber nozzle will affect the surface of the product in the mold, resulting in the formation of sun patterns and affect product quality.
Design a gum with the main body of the glue mouth and the cold flowing head set at the end of its end. The cold current head is connected to the clip, and the plastic raw material is injected into the mold through the cold flow head, and the main body and mold of the glue mouth are separated, thereby reducing the effect of calories on the product.
Through the design of the cold flow head, the effect of the main heat of the glue mouth is alleviated on the product, avoiding or reducing the solar pattern on the surface of the product, and improving the quality of injection molding products.
Smart Images
Figure CN222406938U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of injection molding machines, in particular to a nozzle which is beneficial to improving the quality of injection molding. Background Art
[0002] An injection molding machine is a mechanized production equipment used to produce plastic products. It replaces the original injection molding process that completes the plastic melting and molding work through manual operation, realizes the automation of injection molding, and improves production efficiency and injection molding quality. In modern industrial production, injection molding machines have become basic equipment in the fields of daily necessities, toys, auto parts, industrial parts, etc. During injection molding, the high-temperature plastic raw material flows out of the nozzle of the injection molding machine and enters the mold, and is finally cooled and formed. In order to ensure that the temperature of the plastic raw material flowing out of the nozzle is high and stable, a heating structure will be set at the nozzle.
[0003] However, due to the high temperature of the nozzle, during the injection and cooling and curing process, the product in the mold will be affected by the high-temperature nozzle, forming circles of sun patterns with the nozzle as the center on the surface of the product, thus affecting the quality of the product. Utility Model Content
[0004] In view of this, the utility model provides a nozzle which is beneficial to improving the injection molding quality to solve the above problems.
[0005] A nozzle that is beneficial to improving the quality of injection molding, comprising a nozzle body and a cold flow head arranged at the end of the nozzle body, wherein the nozzle body comprises a mounting tube, a clamping portion arranged at one end of the mounting tube, a guide portion arranged at the other end of the mounting tube, and a clamping portion arranged on the outer side wall of the mounting tube. The cold flow head is cylindrical and communicates with the clamping portion.
[0006] Furthermore, the clamping portion is in a convergent shape, and the guiding portion is in a trumpet shape.
[0007] Furthermore, the cross-sectional diameter of the cold flow head is the same as the diameter of the minimum cross-sectional diameter of the clamping portion.
[0008] Furthermore, the clamping portion includes an annular groove formed on an outer side wall of the mounting tube body.
[0009] Furthermore, at least one annular step is provided at one end of the mounting tube body, and the annular step is provided between the clamping portion and the cold flow head.
[0010] Furthermore, a material guide tube is sleeved on the outside of the nozzle body, and a connecting sleeve is provided between the material guide tube and the nozzle body.
[0011] Furthermore, the outer sleeve of the material guide pipe is provided with a shell, the shell covers the outside of the annular step of the mounting tube body, and the cold flow head passes through the shell.
[0012] Compared with the prior art, the nozzle provided by the utility model is beneficial to improving the injection molding quality by arranging a cold flow head at the end of the nozzle body. The plastic raw material flowing out of the nozzle body is injected into the mold through the cold flow head. The cold flow head separates the nozzle body from the mold, thereby reducing the influence of the heat of the nozzle body on the product in the mold, reducing or even avoiding the sun marks on the surface of the product, thereby improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model provides a cross-sectional view of a nozzle which is beneficial to improving the injection molding quality.
[0014] Figure 2 for Figure 1 A partial enlarged view of the nozzle at A, which is helpful in improving the injection molding quality. DETAILED DESCRIPTION
[0015] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.
[0016] like Figure 1 and Figure 2 As shown in FIG. 1 , it is a schematic diagram of the structure of the nozzle that is beneficial to improving the injection molding quality provided by the utility model. The nozzle that is beneficial to improving the injection molding quality includes a nozzle body 10 and a cold flow head 20 arranged at the end of the nozzle body 10. The nozzle that is beneficial to improving the injection molding quality also includes some other functional modules, such as a connecting sleeve mounted on the outside of the nozzle body 10, etc., which should be well known to those skilled in the art and will not be described in detail here.
[0017] It should be noted that the nozzle body 10 is arranged at the end of a material guide tube 30. A connecting sleeve 40 is arranged between the material guide tube 30 and the nozzle body 10, the inner wall of the connecting sleeve 40 is tightly attached to the nozzle body 10 and bonded by glue, and the outer wall of the connecting sleeve 40 is tightly attached to the material guide tube 30 and bonded by glue, so that the nozzle body 10 is fixedly arranged in the material guide tube 30.
[0018] The nozzle body 10 includes a mounting tube 11 , a clamping portion 12 disposed at one end of the mounting tube 11 , a guiding portion 13 disposed at the other end of the mounting tube 11 , and a clamping portion 14 disposed on the outer side wall of the mounting tube 11 .
[0019] The material of the mounting tube body 11 is stainless steel, so that the mounting tube body 11 itself has good thermal conductivity. When the mounting tube body 11 is connected to an external heating module, the mounting tube body 11 can heat the plastic raw material flowing through to ensure the temperature of the plastic raw material. The cross-sectional diameter of the inner wall of the mounting tube body 11 is larger than the cross-sectional diameter of the valve needle, so as to ensure that the valve needle can move freely in the mounting tube body 11 along the axial direction of the mounting tube body 11.
[0020] At least one annular step 12 is provided at one end of the mounting tube body 11, and the annular step 12 is provided between the clamping portion 14 and the cold flow head 20. In this embodiment, there are two annular steps 12, and the extension direction of the two annular steps 12 is toward one end of the mounting tube body 11 on which the guide portion 13 is provided. One end of the annular step 12 is connected to one end of the clamping portion 14. The annular step 12 is used to increase the contact area between the end of the mounting tube body 11 and the outer shell 31 covering the outside of the guide tube 30, so as to increase the tightness of the connection between the mounting tube body 11 and the outer shell 31 of the guide tube 30, and improve the installation stability of the mounting tube body 11.
[0021] The clamping portion 12 is disposed at the end of the mounting tube 11. The clamping portion 12 is used to stably clamp the valve needle inserted into the nozzle body 10, so as to ensure that the valve needle stably blocks the mounting tube 11 when the valve needle is inserted at the clamping portion 12. The clamping portion 12 is tubular. The inner wall of the clamping portion 12 is convergent. The minimum diameter of the cross section of the inner wall of the clamping portion 12 is not greater than the cross section diameter of the valve needle, so that the valve needle can be tightly fitted outside the valve needle when the valve needle is inserted.
[0022] The guide part 13 is arranged at the base of the installation tube body 11 and is inserted into the injection tube of the plastic raw material during installation. The end of the guide part 13 is trumpet-shaped, so as to facilitate the introduction of the plastic raw material into the installation tube body 11.
[0023] The clamping portion 14 is disposed on the outer side wall of the mounting tube body 11 and is used to connect with the connecting sleeve 40. The clamping portion 14 includes an annular groove 141 disposed on the outer side wall of the mounting tube body 11, and the connecting sleeve is sleeved in the annular groove 141, so that the connecting sleeve is fixed to the clamping portion 14.
[0024] The cold flow head 20 is cylindrical. The inner wall diameter of the cold flow head 20 is the same as the minimum diameter of the cross section of the inner wall of the clamping part 12, so that the flow rate of the plastic material flowing out of the clamping part 12 is uniform. The end of the cold flow head 20 exceeds one end of the guide tube 30. The cold flow head 20 is connected to the clamping part 12.
[0025] Compared with the prior art, the nozzle provided by the utility model is conducive to improving the injection molding quality by arranging a cold flow head 20 at the end of the nozzle body 10. The plastic raw material flowing out of the nozzle body 10 is injected into the mold through the cold flow head 20. The cold flow head 20 separates the nozzle body 10 from the mold, thereby reducing the influence of the heat of the nozzle body 10 on the product in the mold, reducing or even avoiding the sun pattern on the surface of the product, thereby improving the quality of the product.
[0026] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.
Claims
1. A nozzle that is beneficial to improving the quality of injection molding, characterized by: The nozzle that is beneficial to improving the injection molding quality includes a nozzle body and a cold flow head arranged at the end of the nozzle body, the nozzle body includes a mounting tube body, a clamping portion arranged at one end of the mounting tube body, a guide portion arranged at the other end of the mounting tube body, and a clamping portion arranged on the outer side wall of the mounting tube body, the cold flow head is cylindrical, and the cold flow head is connected to the clamping portion.
2. The nozzle for improving injection molding quality as claimed in claim 1, characterized in that: The clamping portion is in a convergent shape, and the guiding portion is in a trumpet shape.
3. The nozzle for improving injection molding quality as claimed in claim 1, characterized in that: The cross-sectional diameter of the cold flow head is the same as the diameter of the minimum cross-sectional diameter of the clamping portion.
4. The nozzle for improving injection molding quality as claimed in claim 1, characterized in that: The clamping portion includes an annular groove formed on the outer side wall of the mounting tube body.
5. The nozzle for improving injection molding quality as claimed in claim 1, characterized in that: One end of the mounting tube body is provided with at least one annular step, and the annular step is provided between the clamping portion and the cold flow head.
6. The nozzle for improving the quality of injection molding as claimed in claim 5, characterized in that: A material guide tube is sleeved on the outside of the nozzle body, and a connecting sleeve is arranged between the material guide tube and the nozzle body.
7. The nozzle for improving injection molding quality as claimed in claim 6, characterized in that: The outer sleeve of the material guide pipe is provided with a shell, the shell covers the outside of the annular step of the mounting tube body, and the cold flow head passes through the shell.