Injection molding mold

Abstract

The utility model discloses an injection molding mold which is used for carrying out injection molding on a connector of a data line, and the data line comprises a plurality of wire cores which are flatly laid along a plane and an outer cover which is wrapped outside the plurality of wire cores. The injection molding mold comprises an upper mold assembly and a lower mold assembly. The upper die assembly comprises a first forming piece and a first glue sealing piece, and the first glue sealing piece is tightly attached to the side of the first forming piece. The lower end face of the first glue sealing piece comprises a first flat pressing part and a first tooth pressing part, and the first flat pressing part is arranged between the first forming piece and the first tooth pressing part. The lower die assembly comprises a second forming piece and a second glue sealing piece, the second glue sealing piece is tightly attached to the side of the second forming piece, the upper end face of the second glue sealing piece comprises a second flat pressing part and a second tooth pressing part, and the second flat pressing part is arranged between the second forming piece and the second tooth pressing part. The first flat-pressing part and the second flat-pressing part flat-press the wire core respectively, and the first tooth-pressing part and the second tooth-pressing part press the outer cover in a tooth-pressing mode. In this way, glue overflowing during injection molding is prevented, and the injection molding yield is increased.

Description

Technical Field

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

[0002] At present, when making data cables, the outermost sheath of the wire is first peeled off to expose the outer sheath of each wire core, and then each wire core is stripped to reveal the metal core wire, and then the metal core wire is directly placed on the circuit board and welded. After that, injection molding is performed at the welding position of the data cable and the circuit board for protection. Generally, during injection molding, the overflow of glue is controlled by a tooth pressure block set on the mold. If the compression between the tooth pressure block and the wire core is too small, overflow of glue is likely to occur. If the compression between the tooth pressure block and the wire core is too large, the wire core is easily deformed, deformed or broken, resulting in a defective data cable.

[0003] Therefore, it is necessary to provide an injection molding die to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an injection molding mold, which will not crush the wire core and at the same time reduce the occurrence of glue overflow, thereby improving the yield rate of wire injection molding.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An injection molding mold is used for injection molding a connector of a data cable, wherein the data cable comprises a plurality of wire cores arranged flat along a plane and a sheath wrapped around the plurality of wire cores, comprising:

[0007] The upper mold assembly includes a first molding part and a first sealing part, wherein the first sealing part is closely attached to the side of the first molding part, and the lower end surface of the first sealing part includes a first flat pressing part and a first tooth pressing part, wherein the first flat pressing part is arranged between the first molding part and the first tooth pressing part;

[0008] The lower mold assembly includes a second molding part and a second sealing part, wherein the second sealing part is closely attached to the side of the second molding part, and the upper end surface of the second sealing part includes a second flat pressing portion and a second tooth pressing portion, wherein the second flat pressing portion is arranged between the second molding part and the second tooth pressing portion;

[0009] The first forming piece and the second forming piece are arranged correspondingly up and down, the first flat pressing portion and the second flat pressing portion are arranged correspondingly up and down, and the first tooth pressing portion and the second tooth pressing portion are arranged correspondingly up and down;

[0010] When the first molding member and the second molding member clamp the plurality of wire cores from upper and lower opposite directions for injection molding, the first flat pressing portion and the second flat pressing portion flatten the wire cores, and the first tooth pressing portion and the second tooth pressing portion tooth-press the outer sheath.

[0011] Further, the first tooth pressing portion includes a plurality of first protrusions, a plurality of the first protrusions are protruding downward, and a first groove is provided between two adjacent first protrusions; the second tooth pressing portion includes a plurality of second protrusions, a plurality of the second protrusions are protruding upward, and a second groove is provided between two adjacent second protrusions;

[0012] The first protrusion and the second protrusion are arranged correspondingly in the upper and lower parts; the first groove and the second groove are arranged correspondingly in the upper and lower parts.

[0013] Further, an end surface of the first flat pressing portion is between the first protrusion and the first groove, and an end surface of the second flat pressing portion is between the second protrusion and the second groove.

[0014] Furthermore, the first groove has a first arcuate surface, the first protrusion has a second arcuate surface, and the first arcuate surface is surface-to-surface connected to the second arcuate surface.

[0015] Furthermore, the second groove has a third arcuate surface, the second protrusion has a fourth arcuate surface, and the third arcuate surface is surface-to-surface connected to the fourth arcuate surface.

[0016] Further, a recessed portion is provided on the lower end surface of the first sealing member, and the first flat pressing portion and the first tooth pressing portion are arranged in the recessed portion; a protruding portion is provided on the upper end surface of the second sealing member, and the second flat pressing portion and the second tooth pressing portion are arranged on the protruding portion; the recessed portion and the protruding portion are matched in a concave-convex manner.

[0017] Furthermore, the lower end surface of the first molding member is further provided with two step portions, the two step portions are respectively arranged on both sides of the recessed portion, and the step portions abut against the upper end surface of the second sealing member.

[0018] Furthermore, the first molding component has a first molding cavity, a side of the first molding cavity facing the first sealing component has a first opening, and the first flat pressing portion is arranged at the first opening.

[0019] Furthermore, the top of the first molded part has a through opening and a channel penetrating the first molded part, one end of the channel is connected to the through opening, and the other end of the channel is connected to the first molding cavity.

[0020] Furthermore, the second molding member has a second molding cavity, the second molding cavity has a second opening on a side facing the second sealing member, and the second flat pressing portion is arranged at the second opening.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The utility model discloses an injection molding die, which is used for injection molding a connector of a data cable, wherein the data cable comprises a plurality of wire cores and a sheath wrapped around the plurality of wire cores. The injection molding die comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly comprises a first molding part and a first sealing rubber part closely attached to the side of the first molding part, and the lower mold assembly comprises a second molding part and a second sealing rubber part closely attached to the side of the second molding part, and by arranging a first flat-pressing portion and a first tooth-pressing portion on the first sealing rubber part, and arranging a second flat-pressing portion and a second tooth-pressing portion on the second sealing rubber part, the first molding part and the second molding part are arranged correspondingly up and down, the first flat-pressing portion and the second flat-pressing portion are arranged correspondingly up and down, and the first tooth-pressing portion and the second tooth-pressing portion are arranged correspondingly up and down. When the upper mold assembly and the lower mold assembly move relatively to perform injection molding on the data cable, the first flat-pressing portion and the second flat-pressing portion can flat-press the wire core, and the first tooth-pressing portion and the second tooth-pressing portion can tooth-press the sheath. This reduces the possibility of molding material overflowing into the gap between the outer sheath and the wire core through the gap between the wire cores, thereby improving the yield of data line injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the injection molding mold and the data cable in the utility model in a matching state;

[0024] Figure 2 It is a three-dimensional schematic diagram of the data line in the utility model;

[0025] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional decomposition of

[0026] Figure 4 It is a three-dimensional exploded schematic diagram of the injection molding mold of the utility model;

[0027] Figure 5 yes Figure 4 A three-dimensional exploded schematic diagram from another angle;

[0028] Figure 6 yes Figure 1 A top view of

[0029] Figure 7 yes Figure 6 Sectional view along line AA;

[0030] Figure 8 Figure 7A partial enlarged schematic diagram of part C in the middle;

[0031] Fig. 9 yes Figure 6 Sectional view along line BB;

[0032] Fig.10 yes Fig. 9 A partial enlarged schematic diagram of part D in the middle;

[0033] Fig.11 It is a three-dimensional exploded schematic diagram of the upper mold assembly in the utility model;

[0034] Fig.12 It is a three-dimensional exploded schematic diagram of the lower mold assembly of the utility model;

[0035] Fig.13 It is a front view of the first molded part in the utility model;

[0036] Fig.14 It is a front view of the second molded part in the utility model.

[0037] Description of reference numerals:

[0038] 100. Injection molding mold;

[0039] 200, data line; 210, line core; 220, outer sheath;

[0040] 1. upper mold assembly; 11. first molding part; 101. first molding cavity; 111. first blocking part; 102. through port; 103. channel; 104. first opening; 12. first sealing part; 121. first flat pressing part; 122. first tooth pressing part; 1221. first protrusion; 12211. second arcuate surface; 1222. first groove; 12221. first arcuate surface; 123. recessed part; 1231. first bottom surface; 1232. first side surface; 124. step part;

[0041] 2. Lower mold assembly; 21. Second molding part; 201. Second molding cavity; 202. Second opening; 211. Second blocking portion; 22. Second sealing member; 221. Second flat pressing portion; 222. Second tooth pressing portion; 2221. Second protrusion; 22211. Fourth arc-shaped surface; 2222. Second groove; 22221. Third arc-shaped surface; 23. Protruding portion; 231. First top surface; 232. Second side surface. DETAILED DESCRIPTION

[0042] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are recorded in the claims of the present invention.

[0043] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0044] Please refer to Figures 1 to 14 The utility model discloses an injection molding mold 100, which is used for injection molding the connector of a data cable 200. The data cable 200 includes a plurality of wire cores 210 arranged flat along a plane and a sheath 220 wrapped around the plurality of wire cores 210. During the process of partially injection molding the wire core 210, the injection molding mold 100 can avoid crushing the sheath 220 and prevent the injection material from overflowing into the gap between the sheath 220 and the wire core 210, thereby improving the yield of the injection molding of the data cable 200.

[0045] Please refer to Figure 3 For the convenience of explanation, we define Figure 3 The first direction D1-D1 shown is the up-down direction of the injection molding mold 100, the second direction D2-D2 is the left-right direction of the injection molding mold 100, and the third direction D3-D3 is the up-down direction of the injection molding mold 100. The first direction D1-D1, the second direction D2-D2 and the third direction D3-D3 are perpendicular to each other.

[0046] Please refer to Figures 1 to 14 The injection molding mold 100 includes an upper mold assembly 1 and a lower mold assembly 2, and the upper mold assembly 1 and the lower mold assembly 2 are arranged correspondingly in the first direction D1-D1. The upper mold assembly 1 and the lower mold assembly 2 are driven by the driving mechanism to make relative movement along the first direction D1-D1, so that the upper mold assembly 1 and the lower mold assembly 2 press the data line 200 up and down along the first direction D1-D1, thereby performing injection molding on the joints of the plurality of wire cores 210 of the data line 200.

[0047] Please refer to Figures 3 to 5The upper mold assembly 1 includes a first molded part 11 and a first sealing member 12. The first sealing member 12 is closely attached to the side of the first molded part 11. In this embodiment, the first sealing member 12 is arranged on the left side of the first molded part 11 along the second direction D2-D2. The lower end surface of the first sealing member 12 includes a first flat pressing portion 121 and a first tooth pressing portion 122. The first flat pressing portion 121 is arranged between the first molded part 11 and the first tooth pressing portion 122. The lower mold assembly 2 includes a second molded part 21 and a second sealing member 22. The second sealing member 22 is closely attached to the side of the second molded part 21. In this embodiment, the second sealing member 22 is arranged on the left side of the second molded part 21 along the second direction D2-D2. The upper end surface of the second sealing member 22 includes a second flat pressing portion 221 and a second tooth pressing portion 222. The second flat pressing portion 221 is arranged between the second molded part 21 and the second tooth pressing portion 222. The first molding member 11 and the second molding member 21 are arranged correspondingly up and down, the first flat pressing portion 121 and the second flat pressing portion 221 are arranged correspondingly up and down, and the first tooth pressing portion 122 and the second tooth pressing portion 222 are arranged correspondingly up and down. When the first molding member 11 and the second molding member 21 clamp a plurality of wire cores 210 from the upper and lower opposite directions for injection molding, the first flat pressing portion 121 and the second flat pressing portion 221 respectively flatten the wire cores 210, and the first tooth pressing portion 122 and the second tooth pressing portion 222 tooth press the outer sheath 220, so that the injection material will not overflow into the gap between the outer sheath 220 and the wire core 210.

[0048] Please refer to Figures 6 to 8 The first tooth pressure portion 122 includes a plurality of first protrusions 1221, which are protruding downward, and a first groove 1222 is provided between two adjacent first protrusions 1221. The plurality of first protrusions 1221 and the plurality of first grooves 1222 are arranged to extend along the third direction D3-D3 at intervals from each other, and the plurality of first protrusions 1221 and the plurality of first grooves 1222 are arranged to be spaced apart from each other to form a wave shape. The second tooth pressure portion 222 includes a plurality of second protrusions 2221, which are protruding upward, and a second groove 2222 is provided between two adjacent second protrusions 2221. The plurality of second protrusions 2221 and the plurality of second grooves 2222 are arranged to extend along the third direction D3-D3 at intervals from each other, and the plurality of second protrusions 2221 and the plurality of second grooves 2222 are arranged to be spaced apart from each other to form a wave shape. The first protrusion 1221 and the second protrusion 2221 are arranged correspondingly up and down, and the first groove 1222 and the second groove 2222 are arranged correspondingly up and down. When the first tooth pressing portion 122 and the second tooth pressing portion 222 press the outer jacket 220, each first protrusion 1221 and the second protrusion 2221 press the upper and lower surfaces of the outer jacket 220 respectively, and the pressing position is located at the gap between two adjacent wire cores 210 to prevent the molding glue from overflowing into the gap, thereby improving the yield rate of injection molding of the data cable 200.

[0049] Please refer to Figure 8 The first groove 1222 has a first arcuate surface 12221, and the first protrusion 1221 has a second arcuate surface 12211, and the first arcuate surface 12221 is surface-to-surface connected to the second arcuate surface 12211. Preferably, the center angle of the first arcuate surface 12221 is greater than the center angle of the second arcuate surface 12211, and the curvature radius of the first arcuate surface 12221 is greater than the curvature radius of the wire core 210, so as to avoid the outer jacket 220 from being crushed when the first groove 1222 and the first protrusion 1221 are pressed against the outer jacket 220 respectively.

[0050] Similarly, the second groove 2222 has a third arcuate surface 22221, and the second protrusion 2221 has a fourth arcuate surface 22211, and the third arcuate surface 22221 is surface-to-surface connected to the fourth arcuate surface 22211. Preferably, the center angle of the third arcuate surface 22221 is greater than the center angle of the fourth arcuate surface 22211, and the radius of curvature of the third arcuate surface 22221 is greater than the radius of curvature of the wire core 210, so as to avoid the outer jacket 220 from being crushed when the second groove 2222 and the second protrusion 2221 are pressed against the outer jacket 220 respectively.

[0051] Please refer to Figures 6 to 10 When the first sealing member 12 and the second sealing member 22 are pressed against the data line 200 from top to bottom, a cavity is formed between the first flat pressing portion 121 and the second flat pressing portion 221, and a plurality of wire cores 210 are arranged in the cavity. The first flat pressing portion 121 and the second flat pressing portion 221 are respectively in contact with the plurality of wire cores 210 at the upper and lower sides of the plurality of wire cores 210. The first flat pressing portion 121 and the second flat pressing portion 221 can greatly reduce the overflow of molding material into between adjacent wire cores 210, and at the same time, will not damage the wire core 210, thereby improving the yield of injection molding of the data line 200.

[0052] Please refer to Figures 11 to 14 , the end surface of the first flat pressing portion 121 is between the first protrusion 1221 and the first groove 1222, and the end surface of the second flat pressing portion 221 is between the second protrusion 2221 and the second groove 2222. The first flat pressing portion 121 and the second flat pressing portion 221 pre-press the wire core 210, and the first tooth pressing portion 122 and the second tooth pressing portion 222 are crimped with the outer sheath 220 to match the shape of the wire core 210 in the outer sheath 220, which can prevent glue overflow and prevent the wire core 210 and the outer sheath 220 from being crushed. In this embodiment, the height difference between the first flat pressing portion 121 and the first protrusion 1221, and the height difference between the second flat pressing portion 221 and the second protrusion 2221 can be adjusted according to the distance between the wire core 210 of the data cable 200 and the outer surface of the outer sheath 220. By replacing the first sealing member 12 and the second sealing member 22 of different specifications, the injection molding mold 100 can be adapted to the data cables 200 of different specifications, thereby reducing the cost.

[0053] Please refer to Fig.11 as well as Fig.13 The lower end surface of the first sealing member 12 is provided with a recessed portion 123, and the first flat pressing portion 121 and the first tooth pressing portion 122 are arranged in the recessed portion 123. The recessed portion 123 has a first bottom surface 1231 and two first side surfaces 1232 arranged perpendicularly on both sides of the first bottom surface 1231 along the third direction D3-D3. The first bottom surface 1231 is extended along the third direction D3-D3, and the first flat pressing portion 121 and the first tooth pressing portion 122 are arranged on the first bottom surface 1231 and are symmetrically arranged along the center of the first bottom surface 1231. The upper end surface of the second sealing member 22 is provided with a protruding portion 23, the second flat pressing portion 221 and the second tooth pressing portion 222 are arranged on the protruding portion 23, the protruding portion 23 has a first top surface 231 and two second side surfaces 232 arranged vertically on both sides of the first top surface 231 along the third direction D3-D3, the second flat pressing portion 221 and the second tooth pressing portion 222 are arranged on the first top surface 231, and are symmetrically arranged along the midline of the first top surface 231, and the height of the first side surface 1232 is the same as the height of the second side surface 232. The recessed portion 123 and the protruding portion 23 are matched in a concave-convex manner, that is, the first bottom surface 1231 of the recessed portion 123 and the first top surface 231 of the protruding portion 23 can fit tightly,

[0054] Please refer to Fig.11 as well as Fig.13 The lower end surface of the first molding part 11 is also provided with two step portions 124, which are respectively arranged on both sides of the recessed portion 123, and the step portions 124 abut against the upper end surface of the second sealing member 22. In this embodiment, the two step portions 124 are respectively arranged at the edges of both sides of the lower end surface of the first molding part 11, and both step portions 124 are protruded toward one side of the second molding part 21. When the recessed portion 123 and the protruding portion 23 are matched, the two step portions 124 abut against the upper top surface of the second sealing member 22, so as to prevent the molding material from overflowing.

[0055] Please refer to Fig.11 as well as Fig.12The first molding member 11 has a first molding cavity 101, and the first molding cavity 101 has a first opening 104 on the side facing the first sealing member 12, and the first flat pressing portion 121 is arranged at the first opening 104. Specifically, the lower end surface of the first molding member 11 also includes a U-shaped first blocking portion 111, and the first opening 104 is located at the two free ends of the first blocking portion 111, and the two ends of the first flat pressing portion 121 are respectively connected to the two free ends of the first blocking portion 111 to close the first opening 104. The second molding member 21 has a second molding cavity 201, and the second molding cavity 201 has a second opening 202 on the side facing the second sealing member 22, and the second flat pressing portion 221 is arranged at the second opening 202. Specifically, the upper end surface of the second molding member 21 also includes a U-shaped second blocking portion 211, and the second opening 202 is located at the two free ends of the second blocking portion 211, and the two ends of the second flat pressing portion 221 are respectively connected to the two free ends of the second blocking portion 211 to close the second opening 202. When the first molding part 11 and the second molding part 21 move relative to each other until they are attached to each other, the first molding cavity 101 and the second molding will be connected to form a receiving cavity, and the connector of the data cable 200 is placed in the receiving cavity for injection molding, and the first flat pressing part 121 and the second flat pressing part 221 respectively press the wire core 210 on the upper and lower end surfaces of the wire core 210, and the first tooth pressing part 122 and the second tooth pressing part 222 respectively tooth press the outer sheath 220 on the upper and lower end surfaces of the outer sheath 220. In this way, the molding material in the receiving cavity can be prevented from overflowing through the gap between the wire cores 210 into the gap between the outer sheath 220 and the wire core 210, thereby improving the yield of the injection molding of the data cable 200 and reducing the production cost.

[0056] Please refer to Figure 1 , Figure 3 as well as Fig.11 In this embodiment, the top of the first molded part 11 has a through opening 102 and a channel 103 that runs through the first molded part 11. One end of the channel 103 is connected to the through opening 102, and the other end of the channel 103 is connected to the first molding cavity 101. By adding molding material to the through opening 102, the molding material enters the accommodating cavity through the channel 103 to perform injection molding of the data line 200.

[0057] In summary, the utility model discloses an injection molding mold 100 for injection molding a connector of a data cable 200, wherein the data cable 200 includes a plurality of wire cores 210 and an outer sheath 220 wrapped around the plurality of wire cores 210. The injection molding mold 100 includes an upper mold assembly 1 and a lower mold assembly 2, wherein the upper mold assembly 1 includes a first molding part 11 and a first sealing member 12 closely attached to the side of the first molding part 11, and the lower mold assembly 2 includes a second molding part 21 and a second sealing member 22 closely attached to the side of the second molding part 21, by arranging a first flat pressing portion 121 and a first tooth pressing portion 122 on the first sealing member 12, and arranging a second flat pressing portion 221 and a second tooth pressing portion 222 on the second sealing member 22, the first molding part 11 and the second molding part 21 are arranged correspondingly up and down, the first flat pressing portion 121 and the second flat pressing portion 221 are arranged correspondingly up and down, and the first tooth pressing portion 122 and the second tooth pressing portion 222 are arranged correspondingly up and down. When the upper mold assembly 1 and the lower mold assembly 2 move relatively to perform injection molding of the data cable 200, the first flat pressing portion 121 and the second flat pressing portion 221 can flat press the wire core 210, and the first tooth pressing portion 122 and the second tooth pressing portion 222 can tooth press the outer sheath 220. This reduces the possibility that the molding material overflows through the gap between the wire cores 210 into the gap between the outer sheath 220 and the wire core 210, thereby improving the yield rate of the injection molding of the data cable 200.

[0058] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0059] The above embodiments are only used to illustrate the present invention but not to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. For example, for the directional description of "front", "back", "left", "right", "up", "down", etc., although this specification has been described in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An injection molding mold for injection molding a connector of a data cable (200), wherein the data cable (200) comprises a plurality of wire cores (210) arranged flat along a plane and an outer sheath (220) wrapped around the plurality of wire cores (210), characterized in that: include: An upper mold assembly (1) comprises a first molding part (11) and a first sealing part (12), wherein the first sealing part (12) is closely attached to the side of the first molding part (11), and the lower end surface of the first sealing part (12) comprises a first flat pressing portion (111) and a first tooth pressing portion (112), wherein the first flat pressing portion (111) is arranged between the first molding part (11) and the first tooth pressing portion (112); The lower mold assembly (2) comprises a second molding part (21) and a second sealing part (22), wherein the second sealing part (22) is closely attached to the side of the second molding part (21), and the upper end surface of the second sealing part (22) comprises a second flat pressing portion (221) and a second tooth pressing portion (222), wherein the second flat pressing portion (221) is arranged between the second molding part (21) and the second tooth pressing portion (222); The first molded part (11) and the second molded part (21) are arranged correspondingly up and down, the first flat pressing part (111) and the second flat pressing part (221) are arranged correspondingly up and down, and the first tooth pressing part (112) and the second tooth pressing part (222) are arranged correspondingly up and down; When the first molding part (11) and the second molding part (21) respectively clamp the plurality of wire cores (210) from upper and lower opposite directions for injection molding, the first flat pressing part (111) and the second flat pressing part (221) respectively flat press the wire cores (210), and the first tooth pressing part (112) and the second tooth pressing part (222) tooth press the outer sheath (220).

2. The injection molding die according to claim 1, characterized in that: The first tooth pressing portion (112) comprises a plurality of first protrusions (1221), wherein the plurality of first protrusions (1221) are protruding downwards, and a first groove (1222) is provided between two adjacent first protrusions (1221); the second tooth pressing portion (222) comprises a plurality of second protrusions (2221), wherein the plurality of second protrusions (2221) are protruding upwards, and a second groove (2222) is provided between two adjacent second protrusions (2221); The first protrusion (1221) and the second protrusion (2221) are arranged correspondingly up and down; the first groove (1222) and the second groove (2222) are arranged correspondingly up and down.

3. The injection molding die according to claim 2, characterized in that: The end surface of the first flat pressing portion (111) is between the first protrusion (1221) and the first groove (1222), and the end surface of the second flat pressing portion (221) is between the second protrusion (2221) and the second groove (2222).

4. The injection molding die according to claim 3, characterized in that: The first groove (1222) has a first arcuate surface (12221), the first protrusion (1221) has a second arcuate surface (12211), and the first arcuate surface (12221) and the second arcuate surface (12211) are connected surface to surface.

5. The injection molding die according to claim 3, characterized in that: The second groove (2222) has a third arcuate surface (22221), the second protrusion (2221) has a fourth arcuate surface (22211), and the third arcuate surface (22221) and the fourth arcuate surface (22211) are connected surface to surface.

6. The injection molding die according to claim 1, characterized in that: The lower end surface of the first sealing member (12) is provided with a recessed portion (123), and the first flat-pressed portion (111) and the first tooth-pressed portion (112) are arranged in the recessed portion (123); the upper end surface of the second sealing member (22) is provided with a protruding portion (23), and the second flat-pressed portion (221) and the second tooth-pressed portion (222) are arranged on the protruding portion (23); the recessed portion (123) and the protruding portion (23) are matched in a concave-convex manner.

7. The injection molding die according to claim 6, characterized in that: The lower end surface of the first molded part (11) is also provided with two step portions (124), the two step portions (124) are respectively arranged on both sides of the recessed part (123), and the step portions (124) are in contact with the upper end surface of the second sealing member (22).

8. The injection molding die according to claim 1, wherein: The first molding component (11) has a first molding cavity (101), a side of the first molding cavity (101) facing the first sealing component (12) has a first opening (104), and the first flat pressing portion (111) is arranged at the first opening (104).

9. The injection molding die according to claim 8, characterized in that: The top of the first molded part (11) has a through opening (102) and a channel (103) passing through the first molded part (11); one end of the channel (103) is connected to the through opening (102), and the other end of the channel (103) is connected to the first molding cavity (101).

10. The injection molding die according to claim 1, wherein: The second molding component (21) has a second molding cavity (201), the second molding cavity (201) has a second opening (202) on a side facing the second sealing component (22), and the second flat pressing portion (221) is arranged at the second opening (202).

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