Optical measuring head triangular support module injection molding device

Abstract

The utility model provides an optical measuring head A-frame module injection molding device which comprises an upper module and a lower module, the upper module is provided with an upper cavity, the lower side of the upper module is provided with three upper mold inserts, the lower module is provided with a lower cavity, and the upper side of the lower module is provided with three lower mold inserts; the triangular support is located between the upper mold insert and the lower mold insert, and the three conductive columns are inserted into the outer side of the triangular support. The upper mold insert and the lower mold insert form a positioning mechanism of the conductive column during mold closing; a blocking rod is arranged at the axial tail end of each conductive column; a glue inlet is formed in the position, above the triangular support, of the upper cavity, and a glue inlet nozzle is further arranged at the glue inlet; a second opening is formed in the position, below the triangular support, of the lower cavity, and an ejector pin is arranged at the second opening. The injection mold solves the problems of inaccurate positioning, unbalanced structure, influence of thermal expansion and cold contraction and the like in the prior art, provides a more stable, efficient and accurate injection molding solution, and has important significance for improving the product quality and the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding equipment technical field, concretely relates to a kind of optical probe triangular support module injection molding device. BACKGROUND

[0002] In the manufacturing process of optical probe module, especially when involving triangular support assembly with conducting column, injection molding is a commonly used manufacturing process;Traditional injection molding device usually includes upper die set and lower die set, and forms cavity by the closure of upper and lower die sets, for the parts required by injection molding;However, when dealing with components with complex structure such as triangular support and conducting column inserted outside, how to ensure the accurate positioning of these components during injection molding, prevent deviation and ensure the quality of final product becomes an important challenge.

[0003] Disadvantages of prior art:

[0004] 1. Inaccurate positioning: in the existing injection molding equipment, for the components that need high-precision positioning (such as conducting column), there is lack of effective positioning mechanism to ensure the position accuracy of the components during injection molding, which may lead to unstable quality of finished products.

[0005] 2. Thermal expansion and contraction effect: the problem of expansion or contraction of materials caused by temperature change is not fully considered, especially in the cooperation between conducting column and mold, which may lead to decrease of dimensional accuracy of finished products.

[0006] 3. Difficult demolding: in some designs, the setting of ejector pin fails to keep vertical with the bottom surface, or the characteristics of internal structure of injection molded part are not considered, which makes the demolding process complex and easy to cause damage to finished products.

[0007] Therefore, the prior art has disadvantages and needs to be further improved. INVENTION CONTENTS

[0008] In view of the problems existing in the prior art, the utility model provides an optical probe triangular support module injection molding device.

[0009] To achieve the above-mentioned purpose, the specific scheme of the utility model is as follows:

[0010] The utility model provides an optical probe triangular support module injection molding device, which comprises an upper die set and a lower die set, the upper die set is provided with an upper cavity, and the lower side of the upper cavity is provided with three upper die inserts, the lower die set is provided with a lower cavity, and the upper side of the lower cavity is provided with three lower die inserts;

[0011] The triangular support is installed between the upper die insert and the lower die insert, and three conducting columns are inserted outside the triangular support.

[0012] The upper die insert and the lower die insert form a positioning mechanism for conducting column when the mold is closed.

[0013] An abutment is arranged at the axial end of each conductive column;

[0014] An injection port is arranged above the triangular support on the upper cavity, and an injection nozzle is further arranged at the injection port;

[0015] A second opening is arranged below the triangular support on the lower cavity, and a ejector pin is arranged at the second opening;

[0016] A third opening is arranged at the top of the triangular support, and the plastic material is injected from the third opening by the injection nozzle during injection molding, and the conductive column is pushed outwards by the plastic material from the inside to the outside, and the conductive column is limited by the abutment, and the triangular support is ejected from the lower cavity by the ejector pin from the bottom to the top after molding.

[0017] Further, the mating surface of the upper die insert and the lower die insert is provided with a U-shaped positioning groove;

[0018] The U-shaped positioning groove is matched with the outer wall of the conductive column.

[0019] Further, the included angle between the three conductive columns is 120°.

[0020] Further, the axial center lines of the three conductive columns are located in the same plane.

[0021] Further, the limiting surface of the abutment and the end surface of the conductive column maintain a gap of 0.05-0.2mm.

[0022] Further, the ejecting direction of the ejector pin is perpendicular to the bottom surface of the triangular support.

[0023] Further, a radial expansion allowance of 0.1-0.3mm is arranged between the exposed end of the conductive column and the U-shaped positioning groove.

[0024] Further, the upper cavity is mounted on the upper die plate, and the lower cavity is mounted on the lower die plate.

[0025] The technical scheme of the utility model has the following beneficial effects:

[0026] 1. Accurate positioning of the conductive column: by arranging the U-shaped positioning groove on the mating surface of the upper die insert and the lower die insert, and matching with the outer wall of the conductive column, the accurate positioning of the conductive column during injection molding is ensured, and the consistency and reliability of the finished product are improved.

[0027] 2. Design for adapting to thermal expansion and contraction: by arranging a radial expansion allowance (0.1-0.3mm) between the exposed end of the conductive column and the U-shaped positioning groove, the problem of expansion or contraction of the material caused by temperature change is effectively solved, and the risk of size precision reduction of the finished product is reduced.

[0028] 3. Efficient injection molding process: The injection material is injected into the triangular bracket through the third opening at the top of the nozzle, and then pushed outwards by the conductive pillars. Simultaneously, a stop bar is used for limiting the movement, ensuring smooth injection molding and product quality. Furthermore, the ejector pins are positioned perpendicular to the bottom surface of the triangular bracket, facilitating demolding and reducing the possibility of finished product damage.

[0029] 4. Enhanced operational flexibility and production efficiency: The entire device is rationally designed and easy to operate, enabling it to quickly and efficiently complete the injection molding of the optical probe tripod module, thereby improving overall production efficiency and economic benefits. Attached Figure Description

[0030] Figure 1 It is a 3D diagram of the tripod and conductive post;

[0031] Figure 2 This is an exploded view of this utility model;

[0032] Figure 3 yes Figure 2 Enlarged view at point A;

[0033] Figure 4 This is a cross-sectional view of the present invention;

[0034] Figure 5 yes Figure 4 Enlarged view at point B;

[0035] Figure 6 This is a perspective view of the upper module of this utility model;

[0036] Figure 7 yes Figure 6 Enlarged view at point C;

[0037] Figure 8 This is another perspective view of the upper module of this utility model;

[0038] Figure 9 This is a perspective view of the lower module of this utility model;

[0039] Figure 10 yes Figure 9 Enlarged view at point D;

[0040] Figure 11 This is another perspective view of the lower module of this utility model.

[0041] Attached image captions:

[0042] 1. Triangular bracket; 2. Conductive post; 3. Inlet nozzle; 4. Upper mold insert; 5. Stop bar; 6. Lower mold insert; 7. Ejector pin; 8. Upper cavity; 9. Lower cavity; 10. Upper template; 11. Lower template; 12. Third opening; 13. U-shaped positioning groove. DETAILED DESCRIPTION

[0043] The utility model will be described further in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and not limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.

[0044] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of the embodiment, the terms "up", "down", "front", "back", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.

[0047] In combination Figures 1-11 As shown in the drawings, the utility model provides a kind of optical probe triangular support module injection molding device, the upper die set is provided with upper cavity 8, the lower side of upper cavity 8 is provided with three upper die inserts 4, the lower die set is provided with lower cavity 9, the upper side of lower cavity 9 is provided with three lower die inserts 6;

[0048] Triangular support 1 is installed between upper die insert 4 and lower die insert 6, three conductive columns 2 are inserted in the outside of triangular support 1;

[0049] The upper die insert 4 and the lower die insert 6 form a positioning mechanism of the conductive column 2 when the mold is closed.

[0050] An axial end of each conductive column 2 is provided with a stopper 5.

[0051] An upper side of the upper cavity 8 above the triangular support 1 is provided with a glue inlet, and the glue inlet is further provided with a glue nozzle 3.

[0052] A lower side of the lower cavity 9 below the triangular support 1 is provided with a second opening, and the second opening is provided with a ejector pin 7.

[0053] A top of the triangular support 1 is provided with a third opening 12, and the glue is injected into the inside of the triangular support 1 from the third opening 12 by the glue nozzle 3 during injection molding, the conductive column 2 is pushed outwards by the glue from inside to outside, and the triangular support 1 is ejected from the lower cavity 9 upwards by the ejector pin 7 after molding.

[0054] The matching surface of the upper die insert 4 and the lower die insert 6 is provided with a U-shaped positioning groove 13.

[0055] The U-shaped positioning groove 13 is matched with the outer wall of the conductive column 2.

[0056] The included angle between the three conductive columns 2 is 120°.

[0057] The axial center lines of the three conductive columns 2 are located in the same plane.

[0058] The limiting surface of the stopper 5 and the end surface of the conductive column 2 keep a gap of 0.05-0.2mm.

[0059] The ejecting direction of the ejector pin 7 is vertically arranged with the bottom surface of the triangular support 1.

[0060] The radial expansion allowance between the exposed end of the conductive column 2 and the U-shaped positioning groove 13 is 0.1-0.3mm.

[0061] The upper cavity 8 is installed on the upper die plate 10, and the lower cavity 9 is installed on the lower die plate 11.

[0062] The principle of the utility model is as follows:

[0063] The working principle of the optical probe triangular support module injection molding device of the utility model comprises the following steps:

[0064] Preparation stage: firstly, the triangular support 1 with three conductive columns 2 is installed between the upper die insert 4 and the lower die insert 6. The upper die insert 4 is located on the lower side of the upper cavity 8, and the lower die insert 6 is located on the upper side of the lower cavity 9. An axial end of each conductive column 2 is provided with a stopper 5 for limiting the position of the conductive column 2.

[0065] Mold positioning: When the upper mold set and the lower mold set are combined, the upper mold insert 4 cooperates with the lower mold insert 6 to form the positioning mechanism of the conductive column 2. Specifically, the mating surface of the upper and lower mold inserts 6 is provided with U-shaped positioning grooves 13, which are in close fit with the outer wall of the conductive column 2, ensuring accurate positioning of the conductive column 2, and the included angle between the three conductive columns 2 is 120°, and the axial center lines are located in the same plane.

[0066] Injection molding process: When the injection molding starts, the glue enters through the glue inlet provided above the upper cavity 8 and is injected into the triangular support 1 through the third opening 12 at the top of the triangular support 1 via the glue nozzle 3. As the glue gradually fills the space inside the triangular support 1, it will push the conductive column 2 from the inside out, but the movement of the conductive column 2 is limited by the stop lever 5, avoiding excessive displacement or deviation.

[0067] Thermal expansion and contraction compensation: In order to adapt to the expansion or contraction of the material due to temperature change, a radial expansion allowance (0.1-0.3mm) is provided between the exposed end of the conductive column 2 and the U-shaped positioning groove 13, thereby ensuring the accuracy of the finished product size.

[0068] Demolding: After the injection molding is completed, the ejector pin 7 is ejected upward from the second opening at the bottom of the lower cavity 9, and the ejection direction is perpendicular to the bottom surface of the triangular support 1, which helps to smoothly push the molded triangular support 1 out of the lower cavity 9, reducing the risk of product damage.

[0069] Mold plate structure: Throughout the process, the upper cavity 8 is installed on the upper mold plate 10, and the lower cavity 9 is installed on the lower mold plate 11, ensuring the overall stability of the mold and the convenience of operation.

[0070] In summary, the injection molding device realizes efficient and accurate injection molding of the optical probe triangular support 1 module with complex structure through the precise design of the mold structure and the reasonable process flow, improving the product quality and production efficiency.

[0071] The above only describes the preferred embodiments of the present application, and does not limit the scope of the application. Any equivalent structural transformation or direct / indirect application in other related technical fields based on the application concept, the contents of the application specification and the drawings are included in the protection scope of the application.

Claims

1. An optical probe triangular support module injection molding device, comprising an upper mold module and a lower mold module, characterized in that: the upper mold module is provided with an upper cavity, and the lower side of the upper cavity is provided with three upper mold inserts; the lower mold module is provided with a lower cavity, and the upper side of the lower cavity is provided with three lower mold inserts; a triangular support is installed between the upper mold inserts and the lower mold inserts, and three conductive columns are inserted outside the triangular support; the upper mold inserts and the lower mold inserts form a positioning mechanism for the conductive columns when the mold is closed; an axial end of each conductive column is provided with a stop lever; an injection port is arranged above the triangular support on the upper cavity, and an injection nozzle is arranged at the injection port; a second opening is arranged below the triangular support on the lower cavity, and an ejector pin is arranged at the second opening; a third opening is arranged at the top of the triangular support, and the injection nozzle injects the material into the interior of the triangular support from the third opening during injection, the material pushes the conductive columns outward from the inside to the outside, and the stop lever limits the position, and the ejector pin ejects the triangular support from the lower cavity upward after molding.

2. The optical probe triangular support module injection molding device of claim 1, wherein: the mating surface of the upper mold insert and the lower mold insert is provided with a U-shaped positioning groove; the U-shaped positioning groove is matched with the outer wall of the conductive column.

3. The optical probe triangular support module injection molding device of claim 1, wherein: The included angle between the three conductive columns is 120°.

4. The optical probe triangular support module injection molding device of claim 1, wherein: The axial center lines of the three conductive columns are located in the same plane.

5. The optical probe tripod module injection molding apparatus of claim 1, wherein: The limiting surface of the stop lever and the end surface of the conductive column maintain a gap of 0.05-0.2mm.

6. The optical probe tripod module injection molding apparatus of claim 1, wherein: The ejecting direction of the ejector pin is perpendicular to the bottom surface of the triangular support.

7. The optical probe triangular support module injection molding device of claim 2, wherein: The exposed end of the conductive column and the U-shaped positioning groove are provided with a radial expansion allowance of 0.1-0.3mm.

8. The optical probe triangular support module injection molding device according to claim 1, characterized in that: the upper cavity is installed on the upper mold plate, and the lower cavity is installed on the lower mold plate.

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