Melt pressure forming die

Abstract

The utility model provides a melt pressure forming mold, and relates to the technical field of optical fiber product forming. The melt pressure forming mold comprises a mold outer sleeve, a mold inner sleeve and a mold inner sleeve, the four sliding blocks are arranged in the mold outer sleeve, and a forming cavity with a parallelogram-shaped cross section is defined by the four sliding blocks; the side face of the sliding block comprises a first face, a second face opposite to the first face and two third faces connected between the first face and the second face, the first face faces the forming cavity and is perpendicular to the bottom face of the sliding block, and a first included angle formed by the second face and the bottom face of the sliding block is an acute angle. The third faces are perpendicular to the bottom face of the sliding block, and one third face of the sliding block is in lap joint with the first face adjacent to the third face in parallel. And the sleeve ring is arranged in the mold outer sleeve, an adjusting cavity is formed in the sleeve ring, the sleeve ring can be arranged outside the four sliding blocks in a sleeving mode, and the four cavity walls of the adjusting cavity are movably attached to the second faces of the four sliding blocks correspondingly.

Description

Technical Field

[0001] This application relates to the field of optical fiber product forming technology, and in particular to a melt pressing forming mold. Background Technology

[0002] The melting and pressing process involves bonding optical fiber assemblies arranged in a certain shape together under heat and pressure, relying on the softening of the coated glass to form a whole. To ensure that the internal structure of the product is not damaged, the melting and pressing process must be carried out in a vacuum environment.

[0003] In the fusion molding of optical fiber products, the fusion molding die is an important component. In traditional die design, optical fiber matrix assembly products are generally divided into square and hexagonal shapes. The die is usually designed according to the shape of the fiber diameter, and is normally square or hexagonal. This is because square and hexagonal shapes are convenient and compact for forming matrices, and the stress is more uniform during molding, which can ensure the internal structure and quality of the product.

[0004] With the development of society, more and more devices require various irregularly shaped optical fiber products for coupling materials, and the application fields are becoming wider and wider. As a result, many products have different specifications and shapes, forming irregularly shaped optical fiber products with multiple perspectives and specifications. If irregular shapes are to be processed, molds that match them and can meet the technical requirements need to be designed.

[0005] Therefore, how to provide a mold that saves materials, improves efficiency, and is easy to process for processing equilateral triangular optical fiber products is a technical problem that urgently needs to be solved. Utility Model Content

[0006] The purpose of this application is to provide a melt-forming mold to solve the problem of molds suitable for equilateral triangular optical fiber products, which have the advantages of saving materials, improving efficiency and facilitating processing.

[0007] To address the aforementioned technical problems, this application provides the following technical solutions:

[0008] This application provides a melt pressing mold, which includes: a mold outer sleeve, which is a cylindrical structure with an inner cavity in the middle and an opening at the top;

[0009] Four sliders are movably placed inside the mold jacket. The four sliders enclose a forming cavity with a parallelogram cross-section to accommodate the workpiece to be formed. The parallelogram can be equally divided into two equilateral triangles.

[0010] The slider has a first surface, a second surface opposite to the first surface, and two third surfaces connected between the first surface and the second surface. The first surface faces the molding cavity and is perpendicular to the bottom surface of the slider. The first angle formed by the second surface and the bottom surface of the slider is an acute angle. The third surface is perpendicular to the bottom surface of the slider, and one of the third surfaces of the slider overlaps with the adjacent first surface in parallel.

[0011] A collar is placed inside the outer sleeve of the mold, and has an adjustment cavity inside. The collar can be fitted onto the outside of the four sliders, and the four cavity walls of the adjustment cavity are respectively in movable contact with the second surface of the four sliders.

[0012] In some modified embodiments of this application, it further includes: a base disposed in the middle of the bottom of the inner cavity, wherein the bottom surfaces of the four sliders are movably fitted with the bottom surface of the base.

[0013] In some modified embodiments of this application, a top cover is also included, which is detachably mounted on the collar.

[0014] In some modified embodiments of this application, a positioning groove is provided on the side of the top cover facing the collar;

[0015] The top surface of the collar is provided with a positioning protrusion surrounding the adjustment cavity. When the top cover is installed on the collar, the positioning protrusion is embedded in and adapted to the positioning groove.

[0016] In some modified embodiments of this application, the top cover has multiple channels extending to the edge on one side facing the collar, and the multiple channels surround and communicate with the outer periphery of the positioning groove.

[0017] In some modified embodiments of this application, the collar includes a first portion and a second portion that are connected to each other in its axial direction, wherein the first portion is closer to the bottom of the inner cavity than the second portion;

[0018] The outer cross-sectional shape and size of the first part are respectively adapted to the inner cross-sectional shape and size of the mold outer sleeve;

[0019] The diameter of the second part gradually decreases from one end connected to the first part to the other end.

[0020] In some modified embodiments of this application, at least one heat-conducting hole is provided on the side wall of the mold jacket.

[0021] In some modified embodiments of this application, a raised ring is provided on the top outer periphery of the side wall of the mold jacket.

[0022] In some modified embodiments of this application, the bottom surface of the mold jacket is provided with a threaded hole for connecting screws to the base.

[0023] In some modified embodiments of this application, a positioning hole is provided at the center of the bottom surface of the mold jacket.

[0024] Compared to existing technologies, the fusion molding die provided in this application uses four sliders that are movably set inside the die jacket to form a molding cavity for accommodating the workpiece to be molded. The four sliders move synchronously relative to the die jacket under the pressure of the collar, which can adjust the size of the molding cavity. The cross-sectional shape of the molding cavity is a parallelogram, and each side is a parallelogram of equal length. The workpiece to be molded in a certain shape is formed into a rhomboid workpiece in the molding cavity, which can be divided into two equilateral triangle optical fiber products. Thus, two equilateral triangle optical fiber products can be obtained in one molding process, which can reduce the amount of consumables, improve the efficiency of technicians, and lay a reliable foundation for mass production, cost reduction and efficiency improvement. Attached Figure Description

[0025] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0026] Figure 1 A schematic diagram of the structure of the melt pressing mold provided in an embodiment of the present invention is shown.

[0027] Figure 2 This schematic diagram illustrates the structure of the melt pressing mold provided in an embodiment of the present invention from another angle.

[0028] Figure 3 A schematic top view of the melt pressing mold provided in an embodiment of the present invention is shown.

[0029] Figure 4 schematically shown Figure 3 Schematic diagram of the cross-sectional structure of section AA;

[0030] Figure 5 A schematic diagram of the slider arrangement of the melt pressing mold provided in an embodiment of the present invention is shown.

[0031] Figure 6 The schematic diagram illustrates the structure of the slider and collar of the melt pressing mold provided in this embodiment of the present invention.

[0032] Explanation of icon numbers:

[0033] 1. Mold outer casing; 101. Heat conduction hole; 102. Convex ring; 103. Positioning hole; 2. Slider; 201. Molding cavity; 21. First surface; 22. Second surface; 23. Third surface; 3. Ring; 301. Positioning protrusion; 31. First part; 32. Second part; 4. Base; 5. Top cover; 501. Positioning groove; 502. Channel; 6. Screw; a. First included angle; b. Second included angle. Detailed Implementation

[0034] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0035] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0036] Example 1

[0037] Reference Appendix Figure 1 -Appendix Figure 6 Embodiment 1 of this utility model proposes a melt-press forming mold, which includes: a mold outer sleeve 1, which is a cylindrical structure with an inner cavity in the middle and an opening at the top; four sliders 2, which are movably placed inside the mold outer sleeve 1, and the four sliders 2 enclose a forming cavity 201 with a parallelogram cross-section for accommodating the workpiece to be formed, wherein the parallelogram can be equally divided into two equilateral triangles; wherein, the side of the slider 2 includes a first surface 21, a second surface 22 opposite to the first surface 21, and two second surfaces 22 connecting the first surface 21 and the second surface 22. Three surfaces 23, the first surface 21 facing the molding cavity 201 and perpendicular to the bottom surface of the slider 2, the second surface 22 forming an acute angle α with the bottom surface of the slider 2, the third surface 23 perpendicular to the bottom surface of the slider 2, and one of the third surfaces 23 of the slider 2 and the adjacent first surface 21 are parallel and overlap; and a collar 3, placed inside the mold outer sleeve 1, having an adjustment cavity inside, the collar 3 can be fitted onto the outside of the four sliders 2, and the four cavity walls of the adjustment cavity are respectively movably fitted with the second surface 22 of the four sliders 2.

[0038] Specifically, the fusion molding die provided in this embodiment can be applied, but is not limited to, to optical fiber products processed from equilateral triangular substrates. The die mainly consists of a die outer sleeve 1, four sliders 2, and a collar 3. The die outer sleeve 1 has a cylindrical structure with an internal cavity. The cross-sectional shape of the internal cavity can be, but is not limited to, circular, and the top of the die outer sleeve 1 has an opening. The four sliders 2, which are identical in shape and size, are movably disposed within the die outer sleeve 1 to enclose and form a molding cavity 201 for accommodating the workpiece to be molded. The workpiece to be molded can be clamped within the molding cavity 201, and the four sliders 2 move synchronously relative to the die outer sleeve 1 under the pressure of the collar 3 to adjust the size of the molding cavity 201. The cross-sectional shape of the molding cavity 201 is a parallelogram, and it is a parallelogram with equal side lengths. The cross-section refers to the plane parallel to the bottom of the inner cavity of the mold outer sleeve 1. This allows two 60-degree angles and two 120-degree angles to be formed within the forming cavity 201. Workpieces arranged in a certain shape are formed into rhomboid workpieces within the forming cavity 201, which can be divided into two equilateral triangle optical fiber products. Thus, two equilateral triangle optical fiber products can be obtained through a single forming process, reducing material consumption, improving worker efficiency, and laying a reliable foundation for mass production, cost reduction, and efficiency improvement. Of course, if there is a production demand, rhomboid optical fiber products can also be obtained directly. The collar 3 can be movably placed inside the mold outer sleeve 1. The collar 3 has an adjustment cavity inside, which can be a longitudinally penetrating cavity. The adjustment cavity allows the collar 3 to be fitted from the top onto the outside of the four sliders 2, as shown in the attached diagram. Figure 4 and attached Figure 6 As shown, the four walls of the adjustment cavity are in contact with the surfaces of the four sliders 2 that are away from the forming cavity 201, that is, the cross-sectional area of ​​the adjustment cavity gradually decreases from the bottom to the top.

[0039] The slider 2 includes a top surface, a bottom surface, and four side surfaces. Its bottom surface is parallel to the bottom of the inner cavity, and the top surface can be parallel to the bottom surface. The four side surfaces are a first surface 21, a second surface 22, and two third surfaces 23. The first surface 21 is the surface of the slider 2 facing the forming cavity 201, used to tightly fit the surface of the workpiece to be formed, and the first surface 21 is perpendicular to the bottom surface of the slider 2. The second surface 22 is the surface of the slider 2 opposite to the first surface 21, and the first angle α formed by the second surface 22 and the bottom surface of the slider 2 is an acute angle. The two third surfaces 23 are oppositely arranged and connected between the first surface 21, the second surface 22, the bottom surface, and the top surface. The top surface and the bottom surface have the following shapes: The parallelogram is formed by an acute angle between one of the third faces 23 and the first face 21, and an obtuse angle between the other third face 23 and the first face 21. When arranging the four sliders 2, the four sliders 2 are arranged around the perimeter, and one of the third faces 23 of the slider 2 overlaps parallel to the first face 21 adjacent to it to form a circumferentially closed forming cavity 201. When the collar 3 is fitted onto the outside of the four sliders 2 from the top, the four cavity walls of the adjustment cavity inside the collar 3 are respectively in contact with the second face 22 of the four sliders 2. As the collar 3 moves downward, the four sliders 2 are squeezed and slide inward synchronously until the set size is reached.

[0040] In order to improve the accuracy of the adjustment of the four sliders 2 by the collar 3, the outer cross-sectional shape and size of the collar 3 can be adapted to the cross-sectional shape and size of the inner cavity of the mold sleeve 1, so that the movement trajectory of the collar 3 inside the mold sleeve 1 can be restricted by the inner cavity of the mold sleeve 1, so as to facilitate the synchronous and precise adjustment of the four sliders 2.

[0041] During the pressing process, pressure is first applied slowly to the collar 3, compressing it downwards a certain distance. As the collar 3 moves downwards, it pushes the four sliders 2 to contract inwards synchronously. The lateral contraction distance and the downward compression distance are related to the size of the second included angle b (the second included angle b is complementary to the first included angle a) between the contact surface of the collar 3 and the slider 2 and the bottom surface of the collar 3. In the design, the included angle between the contact surface of the collar 3 and the slider 2 and the bottom surface of the collar 3, as well as the downward movement distance of the collar 3, can be determined based on the lateral contraction amount of the workpiece, thereby determining the dimensions and angles of the collar 3 and the slider 2. During molding, the assembled melting and pressing mold is placed into the melting and pressing furnace, and melting and pressing are completed under suitable vacuum, temperature, and pressure.

[0042] Based on the above, this utility model embodiment proposes a melt-pressing molding die. Four sliders 2 are movably disposed within the die outer sleeve 1, forming a molding cavity 201 to accommodate the workpiece to be molded. Under the pressure of the collar 3, the four sliders 2 move synchronously relative to the die outer sleeve 1, adjusting the size of the molding cavity 201. The cross-sectional shape of the molding cavity 201 is a parallelogram, with all sides of equal length. Workpieces arranged in a certain shape are molded within the molding cavity 201, resulting in a rhomboid workpiece that can be divided into two equilateral triangle optical fiber products. Thus, two equilateral triangle optical fiber products can be obtained through a single molding process, reducing material consumption, improving worker efficiency, and laying a reliable foundation for mass production, cost reduction, and efficiency improvement.

[0043] Further, see attached document. Figure 4 and attached Figure 5 In a specific implementation, the melt pressing mold provided in this embodiment also includes: a base 4, which is disposed in the middle of the bottom of the inner cavity, and the bottom surfaces of the four sliders 2 are movably fitted with the bottom surface of the base 4.

[0044] Specifically, to facilitate the adjustment of the collar 3 within the mold outer sleeve 1, the technical solution adopted in this utility model allows for the placement of a base 4 at the center of the cavity bottom. The base 4 can be a cylindrical structure with a certain height. Taking the circular cross-sectional shape of the inner cavity of the mold outer sleeve 1 as an example, the central axis of the base 4 coincides with the central axis of the inner cavity of the mold outer sleeve 1, and the cross-sectional area of ​​the base 4 is smaller than the bottom cross-sectional area of ​​the adjustment cavity of the collar 3. This means that the collar 3 can move from the top of the slider 2 to the bottom of the slider 2, with a large stroke. Furthermore, to limit the downward movement of the collar 3 to its extreme position, a limiting block can be placed at the bottom of the mold outer sleeve 1. The height of the limiting block can be lower than the height of the base 4, and can be set according to the actual situation.

[0045] In order to fix the base 4 at the bottom of the inner cavity, a first threaded hole or through hole can be opened on the bottom surface of the mold outer sleeve 1, and a corresponding second threaded hole can be opened on the bottom of the base 4 for screwing the screw 6 to fix the base 4 to the mold outer sleeve 1; the number of threaded holes can be, but is not limited to, three, and they are spaced apart.

[0046] Further, see attached document. Figure 1 and attached Figure 3 In a specific implementation, the melt pressing mold provided in this embodiment also includes: a top cover 5, which can be detachably installed on the collar 3.

[0047] Specifically, in order to facilitate the adjustment of the collar 3, the technical solution adopted by this utility model is to install a top cover 5 on the top of the collar 3. By pressing down the top cover 5, the collar 3 can be evenly forceped, and debris can be prevented from falling into the adjustment cavity and the forming cavity 201. The cross-sectional shape and size of the top cover 5 can be set to be adapted to the outer cross-sectional shape and size of the upper end face of the collar 3 respectively.

[0048] Further, see attached document. Figure 4 In a specific implementation, the top cover 5 is provided with a positioning groove 501 on one side facing the collar 3; the top surface of the collar 3 is provided with a positioning protrusion 301 around the adjustment cavity. When the top cover 5 is installed on the collar 3, the positioning protrusion 301 is embedded in the interior of the positioning groove 501 and is adapted to it.

[0049] Specifically, in order to improve the positioning accuracy of the top cover 5 and the collar 3, the technical solution adopted by this utility model can provide a positioning groove 501 on the lower end face of the top cover 5 and a corresponding positioning protrusion 301 on the upper end face of the collar 3. The positioning protrusion 301 is arranged around the adjustment cavity, and the outer shape and size of the positioning protrusion 301 are adapted to the shape and size of the positioning groove 501. Thus, when the top cover 5 is installed on the collar 3, the positioning protrusion 301 is embedded in the positioning groove 501, so that the top cover 5 and the collar 3 can be reliably positioned. The depth of the positioning groove 501 can be set to be greater than the height of the positioning protrusion 301, but is not limited to this.

[0050] Further, see attached document. Figure 1 and attached Figure 4 In a specific implementation, the top cover 5 is provided with multiple channels 502 extending to the edge on one side facing the collar 3. The multiple channels 502 surround the outer periphery of the positioning groove 501 and communicate with it.

[0051] Specifically, in order to facilitate the operation of the top cover 5, the technical solution adopted by this utility model can provide multiple channels 502 on the lower end face of the top cover 5, and each channel 502 extends to the edge of the lower end face of the top cover 5, that is, it can be exposed on the side of the top cover 5. Each channel 502 can also be connected to the positioning groove 501. By providing channels 502, it is convenient for workers or robot arms to operate the top cover 5. Multiple channels 502 can be evenly distributed along the circumference of the top cover 5. The central axis of each channel 502 can pass through the center of the top cover 5. The cross-sectional shape of the channel 502 can be rectangular, and the cross-section is perpendicular to the lower end face of the top cover 5.

[0052] Further, see attached document. Figure 1 and attached Figure 4In a specific implementation, the collar 3 includes a first part 31 and a second part 32 that are connected to each other in its axial direction. The first part 31 is closer to the bottom of the inner cavity than the second part 32. The outer cross-sectional shape and size of the first part 31 are adapted to the inner cross-sectional shape and size of the mold outer sleeve 1. The diameter of the second part 32 gradually decreases from the end connected to the first part 31 to the other end.

[0053] Specifically, in order to reliably restrict the movement trajectory of the collar 3 and reduce its weight, the technical solution adopted in this utility model can be configured such that the collar 3 includes a first part 31 and a second part 32 connected axially and having different diameters. When the collar 3 is fitted onto the four sliders 2, the first part 31 of the collar 3 is closer to the bottom of the inner cavity. The first part 31 plays the role of restricting the movement trajectory of the collar 3 in conjunction with the inner cavity of the mold outer sleeve 1. Specifically, the outer cross-sectional shape and size of the first part 31 are adapted to the cross-sectional shape and size of the inner cavity of the mold outer sleeve 1, so that when the two are in conjunction, the collar 3 can only move precisely in the vertical direction inside the inner cavity, and the movement distance can be set according to calculation. The second part 32 can be set as a conical structure, that is, the diameter of the second part 32 gradually decreases from one end connected to the first part 31 to the other end. Specifically, it can be conical or pyramidal, which is not specifically limited here.

[0054] Further, see attached document. Figure 1 In specific implementation, at least one heat-conducting hole 101 is provided on the side wall of the mold outer sleeve 1. By providing the heat-conducting hole 101, after the melting and pressing mold and the workpiece to be formed are placed in the melting and pressing furnace, the workpiece to be formed can be fully heated, thereby improving the forming efficiency. The number of heat-conducting holes 101 can be, but is not limited to, three, and they are evenly distributed on the side wall of the mold outer sleeve 1. In addition, a positioning hole 103 can be provided at the center of the bottom surface of the mold outer sleeve 1 to facilitate the reliable and accurate positioning and installation of the melting and pressing mold in the melting and pressing furnace. The positioning hole 103 can be a tapered hole with a gradually increasing diameter from the bottom to the opening, but is not limited to this.

[0055] Further, see attached document. Figure 1 In order to facilitate the operation of the mold jacket 1, in specific implementation, a raised ring 102 can be provided on the outer periphery of the top side wall of the mold jacket 1, which can facilitate the operation of the mold jacket 1 by workers or robot arms.

[0056] It should be noted that in the description of this specification, the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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; the terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which 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.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A melt pressing molding die, characterized in that, include: The mold outer casing is a cylindrical structure with an inner cavity in the middle and an opening at the top; Four sliders are movably placed inside the mold jacket. The four sliders enclose a forming cavity with a parallelogram cross-section to accommodate the workpiece to be formed. The parallelogram can be equally divided into two equilateral triangles. The slider has a first surface, a second surface opposite to the first surface, and two third surfaces connected between the first surface and the second surface. The first surface faces the molding cavity and is perpendicular to the bottom surface of the slider. The first angle formed by the second surface and the bottom surface of the slider is an acute angle. The third surface is perpendicular to the bottom surface of the slider, and one of the third surfaces of the slider overlaps with the adjacent first surface in parallel. A collar is placed inside the outer sleeve of the mold, and has an adjustment cavity inside. The collar can be fitted onto the outside of the four sliders, and the four cavity walls of the adjustment cavity are respectively in movable contact with the second surface of the four sliders.

2. The melt pressing mold according to claim 1, characterized in that, Also includes: The base is located in the middle of the bottom of the inner cavity, and the bottom surfaces of the four sliders are movably fitted with the bottom surface of the base.

3. The melt pressing mold according to claim 1, characterized in that, Also includes: The top cover is detachably installed on the collar.

4. The melt pressing mold according to claim 3, characterized in that, The top cover has a positioning groove on one side facing the collar; The top surface of the collar is provided with a positioning protrusion surrounding the adjustment cavity. When the top cover is installed on the collar, the positioning protrusion is embedded in and adapted to the positioning groove.

5. The melt pressing mold according to claim 4, characterized in that, The top cover has multiple channels extending to the edge on one side facing the collar, and the multiple channels surround and communicate with the outer periphery of the positioning groove.

6. The melt pressing mold according to claim 1, characterized in that, The collar comprises a first part and a second part that are connected to each other in its axial direction, wherein the first part is closer to the bottom of the inner cavity than the second part; The outer cross-sectional shape and size of the first part are respectively adapted to the inner cross-sectional shape and size of the mold outer sleeve; The diameter of the second part gradually decreases from one end connected to the first part to the other end.

7. The melt pressing mold according to claim 1, characterized in that, The mold jacket has at least one heat-conducting hole on its side wall.

8. The melt pressing mold according to claim 1, characterized in that, A raised ring is provided on the top outer periphery of the side wall of the mold jacket.

9. The melt pressing mold according to claim 2, characterized in that, The bottom surface of the mold jacket has a threaded hole for connecting screws to the base.

10. The melt pressing mold according to claim 1, characterized in that, A positioning hole is provided at the center of the bottom surface of the mold jacket.

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