Injection mold

Abstract

The injection mold comprises an upper mold and a lower mold which are matched with each other, the lower mold core is embedded in the lower mold and is sequentially provided with a containing groove and a containing groove which are communicated with each other in the direction from the upper mold to the lower mold; the forming piece is in sliding connection with the lower mold core; the insert component comprises an insert part which is movably arranged in the accommodating groove in a penetrating manner and extends into the accommodating groove, and a special-shaped part which is detachably connected with the insert part, and the insert part is matched with the lower mold core and the forming part to form a forming cavity of an injection product during mold closing; and the clamping piece is arranged in the accommodating groove in a penetrating manner, is connected with the lower mold core and is used for receiving and clamping the insert piece and fixing the insert piece to a preset position. The injection mold receives the insert piece extending into the containing groove through the clamping piece, so that the clamping piece clamps and fixes the insert piece to the preset position, the special-shaped piece connected with the insert piece is always kept at the fixed position in the forming cavity, then the special-shaped piece is accurately formed to a preset area of a product, and the forming precision of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to an injection molding mold. Background Art

[0002] Currently, when an injection mold is used to mold a product, such as a mobile phone back panel having a nut, the insert of the injection mold connected to the nut is usually placed at a preset position of the lower mold of the injection mold so that the nut can be molded to the preset area of ​​the product when the injection mold is closed and the product is injected.

[0003] However, when the insert drives the nut to be placed in the lower die, it is very easy for the insert to be placed incorrectly, resulting in a dent in the molding position of the nut, thereby reducing the molding accuracy of the product. Utility Model Content

[0004] In view of the above situation, it is necessary to provide an injection mold to improve the molding accuracy of the product.

[0005] An embodiment of the present application provides an injection mold, comprising an upper mold and a lower mold that cooperate with each other, and the injection mold also includes: a lower mold core, which is embedded in a side of the lower mold facing the upper mold and is provided with mutually connected receiving grooves and containing grooves in sequence along the direction of the upper mold toward the lower mold; a molding part, which is arranged on a side of the lower mold core facing the upper mold and is slidably connected to the lower mold core; an entry component, including an entry component and a special-shaped part, one end of the entry component is movably inserted into the receiving groove and extends into the containing groove, and the other end of the entry component is detachably connected to the special-shaped part, and the entry component, the lower mold core and the molding part cooperate with the upper mold to form a molding cavity for the injection product when the mold is closed, so as to mold the special-shaped part to a preset area of ​​the product; and a clamping part, which is inserted into the containing groove and connected to the lower mold core, and the clamping part clamps the entry component to a preset position.

[0006] The above-mentioned injection mold receives the entry part extending into the accommodating groove through the clamping part, so that the clamping part clamps the entry part to a preset position, so that the special-shaped part connected to the entry part is always maintained in a fixed position in the molding cavity, and then the special-shaped part is accurately molded to the preset area of ​​the product, thereby improving the molding accuracy of the product.

[0007] In some embodiments, the clamping part includes: a connecting portion, which is passed through the accommodating groove and connected to the lower mold core; a plurality of clamping portions, which are spaced and inclined at the end of the connecting portion adjacent to the insert, and the plurality of clamping portions are surrounded to form an accommodating space for accommodating the insert, and the plurality of clamping portions clamp the insert received in the accommodating space.

[0008] In some embodiments, the entry part includes: an entry portion, one end of which is movably inserted into the receiving groove and detachably connected to the special-shaped part, and the other end of the entry portion extends into the accommodating space and is clamped with the clamping portion; a guide portion, which is connected to the end of the entry portion away from the special-shaped part, and the cross-sectional area of ​​the guide portion is smaller than the cross-sectional area of ​​the entry portion, and the guide portion guides the entry portion to move to the receiving groove.

[0009] In some embodiments, an annular clamping groove is provided on the circumferential side of the entry portion, and a protrusion is provided on the inner side wall of the end of each clamping portion away from the connecting portion. The clamping portion is pressed into the annular clamping groove through the protrusion so that the clamping member clamps the entry portion.

[0010] In some embodiments, the thickness of the raised portion ranges from 0.14 cm to 0.16 cm.

[0011] In some embodiments, an arc-shaped transition portion is provided at the connection between the entry portion and the guide portion, and the arc-shaped transition portion guides the entry member to press the plurality of clamping portions to open.

[0012] In some embodiments, the injection mold further includes: an ejector pin, which is passed through the lower mold core and the connecting portion and extends into the accommodating space, the ejector pin abuts against the end of the insert away from the special-shaped part, and the ejector pin pushes the insert to separate from the lower mold core and the clamping part when the mold is opened.

[0013] In some embodiments, the lower mold core is further provided with a vacuum adsorption groove, which is opened on the groove wall of the accommodating groove and connected to an external air source. The vacuum adsorption groove vacuum adsorbs the input component under the action of the external air source.

[0014] In some embodiments, the special-shaped member is threadedly connected to the insertion member.

[0015] In some embodiments, an annular molding groove is provided on the circumference of the special-shaped part, and the annular molding groove molds a part of the structure of the product when the mold is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of the injection mold provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1 The schematic cross-sectional view along the II-II direction in the injection mold shown.

[0018] Figure 3 for Figure 1 The schematic diagram of the exploded structure of the lower mold core, molding part, insert assembly and clamping part of the injection mold is shown.

[0019] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the entry sub-assembly and the clamping part shown.

[0020] Main component symbols

[0021] Injection mold 100

[0022] Upper mold 101

[0023] Upper template 1011

[0024] Upper mold core 1012

[0025] Lower mold 102

[0026] Molding cavity 103

[0027] Lower mold core 10

[0028] Storage slot 11

[0029] Receiving groove 12

[0030] Vacuum adsorption tank 13

[0031] Molding 20

[0032] Enter subassembly 30

[0033] Enter sub-component 31

[0034] Entrance 311

[0035] Annular clamping groove 3111

[0036] Guide part 312

[0037] Arc transition portion 313

[0038] Special-shaped parts 32

[0039] Annular molding groove 321

[0040] Holder 40

[0041] Connection part 41

[0042] Clamping portion 42

[0043] Accommodation space 421

[0044] Protrusion 43

[0045] Ejector 50

[0046] Products 200 DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0048] In the description of the present application, it should be understood that the terms 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 the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0051] See also Figures 1 to 3 The present invention provides an injection mold 100 for injection molding a product 200. The injection mold 100 includes an upper mold 101, a lower mold 102 arranged opposite to the upper mold 101, a lower mold core 10 embedded in the lower mold 102 on the side facing the upper mold 101, a molding part 20 slidably arranged on the lower mold core 10, an insertion subassembly 30 movably inserted into the lower mold core 10, and a clamping part 40 clamped with the insertion subassembly 30. Figure 1 The upper mold 101 includes an upper mold plate 1011 and an upper mold core 1012 . The upper mold plate 1011 is roughly plate-shaped. The upper mold plate 1011 is arranged opposite to the lower mold 102 . The upper mold core 1012 is roughly plate-shaped. The upper mold core 1012 is embedded in the side of the upper mold plate 1012 facing the lower mold 102 .

[0052] See also Figure 2The lower mold core 10 is roughly plate-shaped, and the lower mold core 10 is fitted with the upper mold core 1012 and embedded in the side of the lower mold 102 facing the upper mold 101, and the lower mold core 10 is provided with a receiving groove 11, a containing groove 12 and a vacuum adsorption groove 13. The receiving groove 11 and the containing groove 12 are arranged in sequence along the direction from the upper mold 101 to the lower mold 102 and are connected to each other. The vacuum adsorption groove 13 is opened on the side wall of the containing groove 12 and is connected to an external air source.

[0053] See also Figure 3 The forming piece 20 is roughly block-shaped, and the forming piece 20 is arranged on the side of the lower mold core 10 facing the upper mold core 101 and is slidably connected to the lower mold core 10. It can be understood that in this embodiment, the number of the forming pieces 20 is four, and the four forming pieces 20 are divided into two rows and evenly arranged on the lower mold core 10 and are all slidably connected to the lower mold core 10.

[0054] See also Figure 2 and Figure 4 The insertion subassembly 30 includes an insertion subassembly 31 movably inserted into the lower mold core 10, and a special-shaped piece 32 detachably connected to the insertion subassembly 31. The insertion subassembly 31 is roughly rod-shaped, one end of which is movably inserted into the receiving groove 11 and extends into the receiving groove 12, and the special-shaped piece 32 is roughly hollow cylindrical, and the special-shaped piece 32 is detachably connected to the other end of the insertion subassembly 31. Among them, the number of the insertion subassemblies 30 is a plurality of groups, and the specific number thereof is consistent with the number of special-shaped pieces 32 required for the product 200, and the plurality of groups of the insertion subassemblies 30 are arranged at intervals and are all movably inserted into the lower mold core 10. In this embodiment, the number of the sub-assemblies 30 is six, of which three groups of the sub-assemblies 30 are arranged between the two molding parts 20 in one row mentioned above, and the other three groups of the sub-assemblies 30 are arranged between the two molding parts 20 in another row, and the six groups of the sub-assemblies 30 are all movably inserted into the lower mold core 10, and the six groups of the sub-assemblies 30 cooperate with the lower mold core 10, the four molding parts 20 and the upper mold 101 to form two products 200.

[0055] In this way, the molding cavity 103 of the injection molded product 200 is formed by the insert 31, the lower mold core 10, and the molding part 20 in cooperation with the upper mold 101 when the mold is closed, so that the molten plastic or other material to be molded fluid can stably mold the product 200 in the molding cavity 103, and the special-shaped part 32 can be molded to the preset area of ​​the product 200, thereby improving the molding accuracy. In addition, by setting the special-shaped part 32 and the insert 31 to be detachably connected, it is convenient for the insert 31 to be separated from the special-shaped part 32 after the product 200 is molded, so as to avoid the insert 31 interfering with the subsequent process of the product 200.

[0056] Understandable, see Figure 2When the sub-piece 31 is placed in the receiving groove 11 and extends into the receiving groove 12, the vacuum adsorption groove 13 vacuum adsorbs the sub-piece 31 under the action of the external air source, so that the sub-piece 31 is separated from the upper mold 101 under the action of the vacuum adsorption force, so that the sub-piece 31 is stably fixed to the preset position, which is convenient for the special-shaped piece 32 to face the preset area of ​​the product 200.

[0057] See also Figure 2 and Figure 4 The insertion member 31 includes an insertion portion 311 movably inserted into the receiving groove 11, a guide portion 312 connected to the insertion portion 311, and an arc-shaped transition portion 313 connected between the insertion portion 311 and the guide portion 312. The insertion portion 311 is roughly cylindrical, one end of the insertion portion 311 is movably inserted into the receiving groove 11 and is detachably connected to the special-shaped member 32, and an annular clamping groove 3111 is provided at a position near the arc-shaped transition portion 313 on the circumferential side of the insertion portion 311. The guide portion 312 is roughly rod-shaped, and the guide portion 312 is connected to the other end of the insertion portion 311, and the cross-sectional area of ​​the guide portion 312 is smaller than the cross-sectional area of ​​the insertion portion 311. The arc-shaped transition portion 313 is provided at the connection between the insertion portion 311 and the guide portion 312 and is respectively connected to the insertion portion 311 and the guide portion 312.

[0058] In this way, by providing the above-mentioned guide portion 312, the cross-sectional area of ​​the guide portion 312 is smaller than the cross-sectional area of ​​the entry portion 311. When the entry member 31 is placed in the storage groove 11, the guide portion 312 can quickly and stably pass through the storage groove 11 and extend into the receiving groove 12, so that the guide portion 312 guides the entry portion 311, making it easier for the entry portion 311 to move stably into the storage groove 11.

[0059] The special-shaped member 32 is generally in the shape of a hollow cylinder, and is threadedly connected to the insertion member 31, wherein the special-shaped member 32 has an internal thread, and the insertion member 31 has an external thread that matches the internal thread, and an annular molding groove 321 is provided on the circumference of the special-shaped member 32, and the annular molding groove 321 forms a partial structure of the molding product 200. It can be understood that the special-shaped member 32 is a nut, and in other embodiments, the structure of the special-shaped member 32 can be adjusted according to the injection molding needs.

[0060] Thus, by providing the threaded connection between the special-shaped member 32 and the insertion member 31, a detachable connection is formed between the special-shaped member 32 and the insertion member 31, which facilitates the easy separation of the special-shaped member 32 and the insertion member 31 after the product 200 is formed, thereby improving the demoulding efficiency of the product 200. In addition, by providing the above-mentioned annular molding groove 321, the molten plastic flows into the annular molding groove 321 when the product 200 is injected, so that part of the structure of the product 200 is molded into the annular molding groove 321, so that a stable connection structure is formed between the special-shaped member 32 and the product 200, and the special-shaped member 32 is prevented from being separated from the product 200 due to external force after being molded to the preset area of ​​the product 200.

[0061] Please continue reading Figure 2 and Figure 4 The clamping member 40 includes a connecting portion 41 connected to the lower mold core 10 and a plurality of clamping portions 42 connected to the connecting portion 41. The connecting portion 41 is roughly cylindrical, and is inserted into the receiving groove 12 and connected to the lower mold core 10. The connecting portion 41 is arranged away from the special-shaped member 32 relative to the inserting member 31. The plurality of clamping portions 42 are roughly sheet-shaped buckle structures, and the plurality of clamping portions 42 are arranged at intervals and obliquely at the end of the connecting portion 41 adjacent to the inserting member 31. The plurality of clamping portions 42 are arranged to form an accommodating space 421 for accommodating the inserting member 31, and the plurality of clamping portions 42 clamp the inserting member 31 received in the accommodating space 421. Among them, the number of the clamping members 40 is consistent with the number of the inserting member assembly 30, and the plurality of clamping members 40 are arranged at intervals in the lower mold core 10 and are all movably inserted into the lower mold core 10, and the plurality of clamping members 40 clamp and fix the corresponding inserting member 31 respectively. In this embodiment, two clamping portions 42 are provided on the connecting portion 41 in each clamping member 40. The two clamping portions 42 are arranged opposite to each other and are both connected to the connecting portion 41. The two clamping portions 42 are respectively clamped to the opposite sides of the inserting member 31 to fix the inserting member 31 extending into the accommodating space 421.

[0062] In this way, when the sub-piece 31 extends into the accommodating space 421, it pushes the multiple clamping parts 42 to open, and the accommodating space 421 formed by the multiple clamping parts 42 is received in the sub-piece 31, so that the multiple clamping parts 42 stably shrink and clamp the sub-piece 31 received in the accommodating space 421, and then the clamping part 40 fixes the sub-piece 31 to the preset position, so that the special-shaped part 32 connected to the sub-piece 31 is stably formed to the preset area of ​​the product 200, thereby improving the molding accuracy. In addition, by arranging the clamping parts 42 at an angle, a certain movable spacing can be formed between the outer wall of the clamping parts 42 and the groove wall of the accommodating groove 12. When the sub-piece 31 extends into the accommodating space 421 and pushes the multiple clamping parts 42 to open, the above-mentioned movable spacing provides a sufficiently large movable space for the opened clamping parts 42, avoiding interference between the clamping parts 42 and the accommodating groove 12 during the opening process, thereby improving the molding stability of the product 200.

[0063] Among them, when the insert 31 extends into the accommodating space 421, the arc-shaped transition portion 313 can stably guide the insert 31 to press multiple clamping portions 42 to open synchronously, so as to avoid the formation of rigid abutment between the clamping portions 42 and the insert 31, which may cause damage to the insert 31 and the clamping member 40, and facilitate the clamping member 40 to stably receive and clamp the insert 31, thereby stably fixing the insert 31 to a preset position.

[0064] It can be understood that the material of the clamping member 40 is spring steel. In this way, the clamping member 40 uses the elastic properties of the spring steel to enable the multiple clamping parts 42 to stably open and contract, so that the clamping member 40 can stably clamp and fix the sub-piece 31 stored in the accommodating space 421. The number of clamping parts 42 can be two, three, four, etc. In this embodiment, the number of clamping parts 42 is two. In other embodiments, the clamping member 40 can adjust the number of clamping parts 42 according to the clamping requirements. The more the number of clamping parts 42, the greater the clamping force applied to the sub-piece 31, the easier it is for the sub-piece 31 to be stably fixed to the preset position, and the more difficult it is for the sub-piece 31 to loosen the clamping member 40.

[0065] The width of the holding portion 42 ranges from 2.2 cm to 2.4 cm, and the thickness of the holding portion 42 ranges from 0.5 cm to 0.7 cm.

[0066] If the width of the clamping portion 42 is greater than 2.4 cm and the thickness is greater than 0.7 cm, the clamping force applied by the clamping portion 42 to the insert 31 is too large, making it difficult for the insert 31 to separate from the clamping portion 40 when the mold is opened; if the width of the clamping portion 42 is less than 2.2 cm and the thickness is less than 0.5 cm, the clamping force applied by the clamping portion 42 to the insert 31 is too small, making it difficult for the clamping portion 40 to stably clamp the insert 31, causing the insert 31 to easily loosen from the clamping portion 40 during the injection molding process of the product 200, thereby causing the molding position of the special-shaped part 32 to deviate from the preset area of ​​the product 200. In this way, by setting the width and thickness of the clamping portion 42 to conform to the above-mentioned width range and thickness range, the clamping member 40 can apply a clamping force of appropriate size to the insert part 31, which can not only ensure that the clamping member 40 stably clamps and fixes the insert part 31 to the preset position, but also facilitate the insert part 31 to stably detach from the clamping member 40 when the mold is opened.

[0067] The clamping member 40 further includes a plurality of protrusions 43 , each of which is disposed on an inner side wall of an end of a corresponding clamping portion 42 away from the connecting portion 41 .

[0068] In this way, by setting the above-mentioned protrusion 43, the protrusion 43 can be pressed against the annular clamping groove 3111 under the drive of the clamping portion 42, so that the clamping member 40 can stably clamp the sub-member 31, avoiding the clamping member 40 and the sub-member 31 from loosening from each other when the product 200 is injected, thereby improving the molding stability.

[0069] The thickness of the protrusion 43 ranges from 0.14 cm to 0.16 cm.

[0070] When the thickness of the protrusion 43 is greater than 0.16 cm, the contact area between the protrusion 43 and the annular clamping groove 3111 is too large, making it difficult for the protrusion 43 to stably detach from the annular clamping groove 3111; when the thickness of the protrusion 43 is less than 0.14 cm, the contact area between the protrusion 43 and the annular clamping groove 3111 is too small, making it difficult for the clamping portion 42 to stably clamp and fix the sub-component 31 through the protrusion 43. In this way, by setting the thickness of the protrusion 43 to meet the above-mentioned thickness range, the contact area between the protrusion 43 and the annular clamping groove 3111 can be of appropriate size, so that the clamping portion 42 can stably clamp and fix the sub-component 31 through the protrusion 43, so that the sub-component 31 can be stably fixed to the preset position when the mold is closed, and the sub-component 31 can also stably loosen the clamping member 40 when the mold is opened.

[0071] See also Figure 1 and Figure 2 The injection mold 100 also includes an ejector pin 50, which is roughly rod-shaped. The ejector pin 50 is inserted through the lower mold core 10 and the connecting portion 41 and extends into the accommodating space 421. The ejector pin 50 abuts against the end of the insertion component 31 away from the special-shaped component 32. When the mold is opened, the ejector pin 50 pushes the insertion component 31 away from the lower mold core 10 and the clamping component 40.

[0072] In this way, by abutting the end of the insert 31 with the ejector pin 50, the ejector pin 50 can stably push the insert 31 to move toward the upper mold 101 when the mold is opened, so that the insert 31 is driven by the ejector pin 50 to push multiple clamping parts 42 to open and successively detach from the clamping part 40 and the lower mold core 10, which is convenient for the subsequent demolding operation of the product 200.

[0073] It can be understood that the number of ejector pins 50 is twenty, of which six ejector pins 50 are respectively arranged corresponding to the six clamping parts 40, and the six ejector pins 50 are respectively penetrated through the corresponding clamping parts 40 and abutted against the corresponding inserting parts 31, and the other fourteen ejector pins 50 are divided into two groups, and the two groups of ejector pins 50 are evenly distributed and movably penetrated through the lower mold core 10, and the two groups of ejector pins 50 are respectively abutted against the two products 200 formed by the injection mold 100, so as to push the products 200 away from the lower mold core 10 when the mold is opened.

[0074] The working process of the above-mentioned injection mold 100 is roughly as follows:

[0075] First, the operator locks the special-shaped piece 32 onto the entry piece 31, and then places the entry piece 31 in the receiving groove 11. The guide portion 312 guides the entry portion 311 during the placement of the entry piece 31, so that the entry portion 311 is stably moved into the receiving groove 11. At the same time, the entry portion 311 pushes the multiple holding portions 42 to open synchronously, so that the entry portion 311 is stably extended into the accommodating space 421.

[0076] Then, the plurality of clamping parts 42 are synchronously contracted to move close to the entry part 311, and drive the protrusion 43 to abut against the annular clamping groove 3111, and at the same time, the vacuum adsorption groove 13 vacuum adsorbs the entry part 31 under the action of the external air source, so that the entry part 31 is fixed to the preset position under the action of the clamping part 40 and the vacuum adsorption groove 13;

[0077] Next, the upper mold 101 and the lower mold 102 are molded together with the insert 31, the lower mold core 10 and the molded part 20 to form a molding cavity 103, and the molten plastic is molded into the product 200 in the molding cavity 103. Since the special-shaped part 32 is connected to the insert 31 fixed to the preset position, the special-shaped part 32 is stably molded to the preset area of ​​the product 200, so that the special-shaped part 32 is not placed in the right position, which causes the product 200 to be recessed in the preset area, which is beneficial to improve the quality of the product 200 and improve the molding accuracy of the product 200.

[0078] Finally, the upper mold 101 and the lower mold 102 open, and the ejector pin 50 pushes the sub-component 31 to move toward the upper mold 101, so that the sub-component 31 is driven by the ejector pin 50 to push multiple clamping parts 42 to open and detach from the clamping parts 40 and the lower mold core 10 in sequence. The operator removes the sub-component 31 from the special-shaped part 32 and takes out the product 200.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An injection mold, comprising an upper mold and a lower mold that cooperate with each other, characterized in that: The injection mold further comprises: A lower mold core is embedded in a side of the lower mold facing the upper mold and is provided with mutually communicating receiving grooves and containing grooves in sequence along a direction from the upper mold toward the lower mold; A forming piece, arranged on a side of the lower die core facing the upper die core and slidably connected to the lower die core; An insert assembly, comprising an insert member and a special-shaped member, one end of the insert member being movably arranged in the receiving groove and extending into the receiving groove, the other end of the insert member being detachably connected to the special-shaped member, the insert member, the lower mold core and the molding member cooperating with the upper mold to form a molding cavity of the injection molded product when the mold is closed, so as to mold the special-shaped member into a preset area of ​​the product; and A clamping piece is passed through the accommodating groove and connected to the lower mold core, and the clamping piece clamps the inserting piece to a preset position.

2. The injection mold according to claim 1, characterized in that: The holder comprises: A connecting portion, which is passed through the containing groove and connected to the lower mold core; A plurality of clamping parts are arranged at intervals and tilted at the end of the connecting part adjacent to the inserting member, the plurality of clamping parts are arranged to surround and form a receiving space for accommodating the inserting member, and the plurality of clamping parts clamp the inserting member received in the receiving space.

3. The injection mold according to claim 2, characterized in that: The input component comprises: An entry portion, one end of which is movably inserted into the receiving groove and detachably connected to the special-shaped member, and the other end of which extends into the accommodating space and is clamped by the clamping portion; The guide part is connected to the end of the entry part away from the special-shaped member, and the cross-sectional area of ​​the guide part is smaller than the cross-sectional area of ​​the entry part. The guide part guides the entry part to move to the receiving groove.

4. The injection mold according to claim 3, characterized in that: An annular clamping groove is provided on the circumferential side of the entry part, and a protrusion is provided on the inner side wall of the end of each clamping part away from the connecting part. The clamping part is pressed into the annular clamping groove through the protrusion so that the clamping piece clamps the entry part.

5. The injection mold according to claim 4, characterized in that: The thickness of the raised portion ranges from 0.14 cm to 0.16 cm.

6. The injection mold according to claim 3, characterized in that: An arcuate transition portion is provided at the connection between the entry portion and the guide portion, and the arcuate transition portion guides the entry member to press the plurality of clamping portions to open.

7. The injection mold according to claim 2, characterized in that: The injection mold further comprises: An ejector pin is provided through the lower die core and the connecting portion and extends into the accommodating space, wherein the ejector pin abuts against the end of the insert member away from the special-shaped member, and the ejector pin pushes the insert member away from the lower die core and the clamping member when the mold is opened.

8. The injection mold according to claim 1, characterized in that: The lower mold core is also provided with a vacuum adsorption groove, which is opened on the groove wall of the accommodating groove and is connected to an external air source. The vacuum adsorption groove vacuum adsorbs the sub-component under the action of the external air source.

9. The injection mold according to claim 1, characterized in that: The special-shaped part is threadedly connected to the insertion part.

10. The injection mold according to claim 1, characterized in that: An annular molding groove is provided on the circumference of the special-shaped part, and the annular molding groove molds a part of the structure of the product when the mold is closed.

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