A two-sided glue feeding molding device for connector inner mold

Abstract

The utility model discloses a bilateral glue feeding forming device of connector inner mode. The forming device includes: positioning fixture and forming main body, and the die strip of positioning fixture can detachably connect at least one upper and lower split type elastic die, and the front end of elastic die forms elastic mouth, and the forming main body includes lower model cavity and the upper model cavity vertically elevating opposite lower model cavity, and two cavity closes and forms at least one forming cavity and forms the glue hole, the wire hole of front end, and the glue hole elastic sheath or the cable of profiled sheath, and the glue injection hole of forming cavity two sides is opposite the pouring gate of connector, and positioning fixture removes the forming main body, and the front end of elastic die inserts the connector and the elastic mouth sheath PCB board, and positioning fixture removes the lower positioning groove of lower model cavity and the connector enters the forming cavity, and the glue liquid enters the pouring gate and forms the inner mode from two side glue injection holes. The utility model has the effect of convenient production, and the product yield is high.

Description

Technical Field

[0001] This utility model relates to the field of connector processing, and in particular to a double-sided glue injection molding device for connector inner mold. Background Technology

[0002] With the rapid development of artificial intelligence (AI), machine learning (ML), high-performance computing (HPC), and cloud services, the amount of data that needs to be exchanged between internal server chips (such as GPUs to GPUs, GPUs to NVMe SSDs, and CPUs to accelerator cards) is growing exponentially, thus requiring higher-performance cable connectors. Currently, cable connectors are manufactured by injecting a high-flow, low-dielectric-constant hot-melt adhesive into the connector to fix the internal structure and solder joints, ensuring good mechanical properties while maintaining transmission speed. However, this method has several problems: First, the assembly between the connector workpiece and the mold is complex, and the workpiece is not easy to enter the molding device, resulting in low production efficiency. Second, the mold's rigid structure for fixing the PCB board makes disassembly and assembly difficult and easily damages the gold fingers on the PCB board, resulting in low yield. Third, the mold's sealing device can easily seal too tightly, damaging the cable, or leave gaps, preventing proper injection molding and sealing. Utility Model Content

[0003] To address one or more of the aforementioned problems, this utility model provides a double-sided glue injection molding device for connector inner mold.

[0004] According to one aspect of the present invention, a double-sided glue injection molding device for a connector inner mold includes:

[0005] The positioning fixture has at least one mounting hole on the front wall of the mold strip. Each mounting hole can be detachably connected to an upper and lower split elastic mold core. The front ends of the upper and lower mold cores of the elastic mold core surround each other to form an elastic opening.

[0006] The molding body includes a lower mold cavity and an upper mold cavity that moves vertically relative to the lower mold cavity. The lower mold cavity has a lower positioning groove at its rear end. When the upper mold cavity closes the lower mold cavity, at least one molding cavity is formed between the two cavities, and a sealing hole and a wire passage hole are formed at the front end. The sealing hole is elastically wrapped or contoured wrapped with the cable. The injection holes on both sides of the molding cavity are aligned with the gate of the connector. The injection holes are connected to the vertical injection hole of the upper mold cavity.

[0007] The positioning fixture moves out of the molding body, and the front port of the elastic mold core inserts the connector and the elastic port covers the PCB board; the positioning fixture moves into the lower positioning groove and the connector enters the molding cavity, and the glue enters the gate from the injection holes on both sides to form an inner mold for integral injection molding of the connecting cable and the shell.

[0008] In some embodiments, two vertical limiting grooves are symmetrically provided at both ends of the front wall of the mold strip, and two limiting posts are symmetrically provided at both ends of the front wall of the lower positioning groove. When the two cavities are opened, the mold strip is inserted horizontally above the lower positioning groove and then descends vertically into the groove, with the limiting posts fitting into the limiting grooves.

[0009] The length of the template strip is greater than the length of the lower positioning groove, which facilitates the placement and removal of the positioning fixture.

[0010] In some embodiments, the limiting groove is a rectangular vertical groove, the limiting post is a rectangular post, the lower section of the limiting post is inserted into the rectangular shaft hole of the lower positioning groove and the front side of the upper section is inserted into the vertical groove of the front groove wall of the lower positioning groove, and the rear side of the upper section of the limiting post cooperates with the limiting groove.

[0011] In some embodiments, the rear end of the upper mold cavity is provided with an upper positioning groove that is vertically opposite to the lower positioning groove. The upper positioning groove and the lower positioning groove are closed to form a positioning groove for accommodating the mold strip.

[0012] In some embodiments, two lower molding grooves are symmetrically arranged in the middle of the lower mold cavity, and two upper molding grooves are symmetrically arranged in the middle of the upper mold cavity. The two sets of molding grooves close to form two symmetrical molding cavities.

[0013] Each molding cavity has two symmetrical transverse injection holes on both sides. The four injection holes are connected to the four side outlet channels of the glue delivery channel, and the central inlet channel of the glue delivery channel is connected to the inlet hole.

[0014] In some embodiments, the conical hole at the upper end of the injection port is detachably connected to a transition sprue sleeve, which is adapted to connect to a high-pressure injection nozzle; when the transition sprue sleeve is removed, the conical hole is directly connected to a low-pressure injection nozzle.

[0015] In some embodiments, the device also includes a separate upper sealing strip and a lower sealing strip. The lower sealing strip is threadedly connected to the lower mounting groove of the lower mold cavity, and the upper sealing strip is threadedly connected to the upper mounting groove of the upper mold cavity. When the two are closed, they can form a sealing hole that is directly opposite the molding cavity and the wire hole. The sealing hole can wrap around and seal the cable and close the molding cavity.

[0016] In some embodiments, the lower wall of the upper sealing strip is provided with multiple upper grooves at equal intervals, and the upper wall of the lower sealing strip is provided with multiple lower grooves at equal intervals. The upper and lower grooves are closed to form a sealing hole that is compatible with the cable.

[0017] Alternatively, the lower wall of the upper sealing strip and the upper wall of the lower sealing strip may be inlaid or integrally injection molded with elastic rubber skin, and the two rubber skins are elastically pressed and interference-sealed to seal the gap.

[0018] In some embodiments, the upper mold core and the lower mold core are two pieces of plastic elastomer; the positioning boss on the lower surface of the upper mold core is interference-fitted into the positioning groove of the lower mold core to form an elastic mold core.

[0019] In some embodiments, the molding body also includes guide pillars and sliding bearings. The sliding bearings are fixed in the connecting holes around the upper mold cavity, and the lower end of the guide pillars is fixedly connected to the four corners of the lower mold cavity and the upper end is slidably connected to the sliding bearings.

[0020] The molding body also includes a hollow rectangular base and a lifting part. The lifting part is located inside the base, and multiple ejector pins of the lifting part can vertically move up and down through the base, the lower mold cavity, and lift the connector, the positioning fixture, and the upper mold cavity.

[0021] The advantages of this double-sided injection molding device for connector inner mold are as follows: First, the positioning fixture has a simple overall structure and is fixed with a lower positioning groove, making it easy to remove or place the connector as a whole from the molding device. The connector is placed and fixed externally and then placed into the molding device as a whole. The positioning fixture enters the lower positioning groove and the connector is placed into the molding cavity, making it easier to install the connector into the mold and effectively improving production efficiency. Second, the positioning fixture adopts a two-piece upper and lower split elastic mold core assembly type implantation mold strip. Its elastic opening elastically covers the PCB board, which can effectively protect the gold finger part from hard friction damage, and the elastic mold core can be quickly replaced after wear. Third, a new type of sealing hole is adopted. Through contour closure and elastic closure, gapless closure and good injection molding can be achieved, solving the problems of easy excessive tight sealing damaging the cable or gap sealing failing to achieve good injection molding sealing. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a double-sided glue injection molding device for a connector inner mold according to one embodiment of the present invention.

[0023] Figure 2 for Figure 1 A partial cross-sectional schematic diagram of the dual-sided glue-feeding molding device shown;

[0024] Figure 3 for Figure 2 A three-dimensional schematic diagram of the upper model cavity shown;

[0025] Figure 4 for Figure 2 A three-dimensional schematic diagram of the lower model cavity and positioning fixture is shown.

[0026] Figure 5 for Figure 3 A three-dimensional schematic diagram (I) of the positioning fixture shown;

[0027] Figure 6 for Figure 3 A three-dimensional schematic diagram (II) of the positioning fixture shown;

[0028] Figure 7 for Figure 1 A three-dimensional schematic diagram of the base and lifting section shown;

[0029] Figure 8 for Figure 1 A three-dimensional exploded view of the dual-side glue injection molding device shown;

[0030] Figure 9 A three-dimensional schematic diagram of the connector (I);

[0031] Figure 10 A three-dimensional schematic diagram of the connector (II);

[0032] Connector 00, front port 001, PCB board 002, cable 003, gate 004, inner mold 005, housing 006;

[0033] Positioning fixture 01, mold strip 1, mounting hole 100, limiting groove 101, positioning strip 102, elastic mold core 2, elastic opening 20, upper mold core 21, positioning boss 210, groove 211, lower mold core 22, positioning groove 220.

[0034] Molding body 02, molding cavity 020, injection hole 021, wire guide hole 022, positioning groove 023, sealing hole 024, glue delivery channel 025, side outlet channel 0251, center inlet channel 0252, uniform channel 0253, turning channel 0254, lower mold cavity 3, limiting post 30, lower positioning groove 31, lower mounting groove 32, lower wire guide groove 33, lower molding groove 34, upper mold cavity 4, injection hole 41, upper positioning groove 42, upper wire guide groove 43, upper molding groove 44, upper mounting groove 45, upper sealing strip 5, lower sealing strip 6, base 7, lower template 70, frame template 71, ejector guide plate 72, lifting part 8, fixing plate 81, positioning plate 82, first ejector pin 83, second ejector pin 84, guide post 9, upper template 10, mold positioning ring 11, pouring gate sleeve 12. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0036] Figures 1 to 10 A schematic diagram illustrates a double-sided glue-feeding molding apparatus for a connector inner mold according to one embodiment of the present invention. As shown, the double-sided glue-feeding molding apparatus for a connector inner mold includes:

[0037] The positioning fixture 01 has at least one mounting hole 100 on the front wall of the mold strip 1. Each mounting hole 100 is detachably connected to an upper and lower split elastic mold core 2. The front ends of the upper mold core 21 and the lower mold core 22 of the elastic mold core 2 surround to form an elastic opening 20.

[0038] The molding body 02 includes a lower mold cavity 3 and an upper mold cavity 4 that can be vertically raised and lowered relative to the lower mold cavity 3. The lower mold cavity 3 has a lower positioning groove 31 at its rear end. When the upper mold cavity 4 closes the lower mold cavity 3, at least one molding cavity 020 is formed between the two cavities and a sealing hole 024 and a wire passage hole 022 are formed at the front end. The sealing hole 024 elastically covers or conformally covers the cable 003. The injection holes 021 on both sides of the molding cavity 021 are directly opposite the gate 004 of the connector 00. The injection holes 021 are connected to the vertical injection hole 41 of the upper mold cavity 4.

[0039] Positioning fixture 01 moves out of molding body 02, elastic mold core 2 inserts connector 000 front port 001 and elastic port 20 covers PCB board 002; positioning fixture 01 moves into lower positioning groove 31 and connector 00 enters molding cavity 020, glue enters gate 004 from injection holes 021 on both sides, forming inner mold 005 of integrated injection molding connecting cable 003 and shell 006.

[0040] Preferably, the front wall of the mold strip 1 is symmetrically provided with two vertical limiting grooves 101 at both ends, and the front wall of the lower positioning groove 31 is symmetrically provided with two limiting posts 30 at both ends. When the two cavities are opened, the mold strip 1 is inserted horizontally above the lower positioning groove 31 and then descends vertically into the groove, and the limiting posts 30 are fitted into the limiting grooves 101. The length of the mold strip 1 is greater than the length of the lower positioning groove 31, which makes it easier to pick up and put down the positioning fixture 01.

[0041] The advantages of this double-sided injection molding device for connector inner mold are as follows: First, the positioning fixture 01 has a simple overall structure and is fixed by the lower positioning groove 31, making it easy to remove or place the connector 00 as a whole from the molding device. The connector 00 is placed and fixed on the outside and then placed into the molding device as a whole. The positioning fixture 0 enters the lower positioning groove 31 and the connector 00 is placed into the molding cavity 020, making it easier for the connector 00 to be installed into the mold and effectively improving production efficiency. Second, the positioning fixture 01 adopts a two-piece upper and lower split elastic mold core 2 assembled with the mold strip 1. Its elastic opening 20 elastically covers the PCB board 002, which can effectively protect the gold finger part from hard friction damage, and the elastic mold core 2 can quickly become smoother after wear. Third, a new type of sealing hole 024 is adopted. Through contour closure and elastic closure, gapless closure and good injection molding can be achieved, solving the problem that the sealing is too tight and damages the cable or the gap closure cannot achieve good injection molding sealing.

[0042] Furthermore, the limiting groove 101 is a rectangular vertical groove, the front wall of the lower positioning groove 31 has a rectangular vertical groove, and the lower wall has a rectangular shaft hole communicating with the vertical groove. The limiting post 30 is a rectangular post, the lower section of the limiting post 30 is interference-fitted into the rectangular shaft hole of the lower positioning groove 31, and the front side of the upper section is inserted into the vertical groove of the front groove wall of the lower positioning groove 31. The rear side of the upper section of the limiting post 30 cooperates with the limiting groove 101. Its beneficial effects are: this setting facilitates assembly and can achieve good positioning performance.

[0043] Preferably, the rear end of the upper mold cavity 4 is provided with an upper positioning groove 42 that is vertically opposite to the lower positioning groove 31. When the two cavities are closed, the upper positioning groove 42 and the lower positioning groove 31 seal to form a positioning groove 023 for accommodating the mold strip 1. The beneficial effect is that this setting facilitates the gripping of the upper part of the positioning fixture 01 and is beneficial for the rapid removal of the positioning fixture 01.

[0044] Furthermore, the lower mold cavity 3 is symmetrically provided with two lower molding grooves 34 in the middle, and the upper mold cavity 4 is symmetrically provided with two upper molding grooves 44 in the middle. The two sets of molding grooves close to form two symmetrical molding cavities 020.

[0045] Each molding cavity 020 has two symmetrical transverse injection holes 021 on both sides. The four injection holes 021 are connected to the four side outlet channels 0251 of the glue conveying channel 025. The central inlet channel 0252 of the glue conveying channel 025 is connected to the inlet hole 41. Preferably, the glue delivery channel 025 includes four horizontally longitudinal side-outlet glue channels 0251, one horizontally longitudinal central glue inlet channel 0252, one horizontally transverse glue distribution channel 0253, and five vertically directional glue channels 0254. The central glue inlet channel 0252 connects to the lower end of the middle directional glue channel 0254, and the four side-outlet glue channels 0251 connect to the lower ends of the four directional glue channels 0254. The upper ends of the four directional glue channels 0254 symmetrically connect to both sides of the glue distribution channel 0253, and the upper end of the middle directional glue channel 0254 connects to the middle of the glue distribution channel 0253. The four horizontally longitudinal side-outlet glue channels 0251 and the one horizontally longitudinal central glue inlet channel 0252 are mutually surrounded by the upper wall of the lower mold cavity 3 and the lower wall of the upper mold cavity 4. The upper groove wall of the upper molding groove 44 and the upper wall of the mold strip 1 mutually surround each other to form the glue distribution channel 0253. The front groove wall of the upper molding groove 44 and the front wall of the mold strip 1 surround each other to form the directional glue channel 0254. Its beneficial effects are: the glue channel structure is simple, easy to process and manufacture, and convenient for the layout of various components, which can ensure that the glue is dispensed uniformly from each glue injection hole 021.

[0046] Furthermore, the conical hole at the upper end of the injection port 41 is detachably connected to a transition sprue sleeve 12, which is adapted to connect to a high-pressure injection nozzle. When the transition sprue sleeve 12 is removed, the conical hole is directly connected to a compatible low-pressure injection nozzle. The upper mold cavity 4 is also fixedly connected to an upper mold plate 10, with a mold positioning ring 11 fixedly connected in the middle of the upper mold plate 10. The transition sprue sleeve 12 passes through the mold positioning ring 11 and the center hole of the upper mold plate 10, connecting to either the injection port 41 or the transition sprue sleeve 12. The advantages are: this setup is compatible with both high-pressure and low-pressure injection molding processes, facilitating production and enabling the production of more product types.

[0047] Furthermore, it also includes a separate upper sealing strip 5 and a lower sealing strip 6. The upper wall of the front end of the lower mold cavity 3 is provided with a rectangular lower mounting groove 32 and a lower through-hole 33 located at the front end of the lower molding groove 34. The lower wall of the front end of the upper mold cavity 4 is provided with a rectangular upper mounting groove 45 and an upper through-hole 43 located at the front end of the upper molding groove 44. The lower sealing strip 6 is threadedly connected to the lower mounting groove 32 of the lower mold cavity 3, and the upper sealing strip 5 is threadedly connected to the upper mounting groove 45 of the upper mold cavity 4. When the upper sealing strip 5 descends and closes the lower sealing strip 6, the closure of the two can form a sealing hole 024 that is directly opposite the molding cavity 020 and the through-hole 022. The sealing hole 024 can cover and seal the cable 003 and close the molding cavity 020. Preferably, the lower wall of the upper sealing strip 5 is provided with multiple upper grooves at equal intervals, and the upper wall of the lower sealing strip 6 is provided with multiple lower grooves at equal intervals. The upper grooves and lower grooves close to form a sealing hole adapted to the cable. Its beneficial effects are: firstly, the use of multi-channel contour holes combined with the upper and lower split structure can avoid damage to the pressure lines; secondly, the upper and lower split structure facilitates product assembly.

[0048] Preferably, the lower wall of the upper sealing strip 5 and the upper wall of the lower sealing strip 6 are both inlaid or integrally injection molded with elastic rubber sheets. The two rubber sheets elastically press the lines and provide an interference fit to seal the gap. The beneficial effect is that this elastic pressing design effectively prevents damage to the pressing lines.

[0049] Furthermore, the upper mold core 21 and the lower mold core 22 are two pieces of plastic elastomer; the lower surface of the upper mold core 21 is provided with a positioning boss 210, and the upper surface of the lower mold core 22 is provided with a positioning groove 220. The positioning boss 210 is interference-fitted into the positioning groove 220 to form the elastic mold core 2, and the elastic mold core 2 is interference-fitted into the mounting hole 100. Its advantages are: this design can effectively and elastically fix the connector 00 without damaging the gold fingers 01, and the structure is easy to replace and suitable for different models of connectors 00.

[0050] Preferably, the upper surface of the upper mold core 21 is also provided with a rectangular groove 211 that cooperates with the positioning strip 102 of the mounting hole 100. This setting can achieve high-precision fixing of the elastic mold core 00.

[0051] Furthermore, the molding body 02 also includes guide pillars 9 and sliding bearings. The sliding bearings are fixed in the connecting holes around the upper mold cavity 4. The lower end of the guide pillars 9 is fixedly connected to the four corners of the lower mold cavity 3 and the upper end is slidably connected to the sliding bearings. The molding body 02 also includes a rectangular base 7 and a lifting part 8. The base 7 is an internally hollow rectangular frame. The lifting part 8 is located in the inner cavity of the base 7. The ejector pin of the lifting part 8 can vertically lift and lower through the base 7, the lower mold cavity 3, and lift the connector 00, the positioning fixture 01, and the upper mold cavity 4.

[0052] The lower template 70 of the base 7 is vertically connected to the lower ends of two vertical frame templates 71 on both sides, and the upper ends of the two frame templates 71 are vertically connected to the ejector guide plate 72. The ejector guide plate 72 is threadedly connected to the lower model cavity 3, thus forming a hollow rectangular frame.

[0053] The lifting section 8 includes a fixed plate 81 disposed in the inner cavity of the base 7 and a positioning plate 82 threadedly connected to the fixed plate 81. Multiple first ejector pins 83 are fixedly connected to the center of the positioning plate 82, and multiple second ejector pins 84 are fixedly connected to its periphery. The upper ends of the multiple first ejector pins 83 are sleeved in the ejection shaft hole in the center of the guide plate 72 and the central top hole of the lower mold cavity 3, and are directly opposite the forming cavity 020. The multiple second ejector pins 84 are sleeved in the ejection shaft holes around the ejection guide plate 72 and the top holes around the lower mold cavity 3, and are directly opposite the positioning fixture 01 and the upper mold cavity 4. A vertical lifter is also fixedly connected to the lower end of the fixed plate 81. The drive rod of the vertical lifter passes through the central hole of the lower template 70 and is connected to the lower end of the fixed plate 81. The vertical lifter can be a pneumatic cylinder, a servo electric cylinder, or a hydraulic cylinder. When the vertical lifter is activated, multiple first ejector pins 83 pass through the central top hole of the lower mold cavity 3 and enter the molding cavity 020 to lift the connector 00. Multiple second ejector pins 84 pass through the surrounding top holes of the lower mold cavity 3 to lift the positioning fixture 01 and the upper mold cavity 4. The beneficial effect is that the molding body 02 can achieve high-precision molding operations.

[0054] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A double-sided glue-feeding molding device for a connector inner mold, characterized in that, include: The positioning fixture (01) has at least one mounting hole (100) on the front wall of the mold strip (1) of the positioning fixture (01). Each mounting hole (100) is detachably connected to an upper and lower split elastic mold core (2). The front ends of the upper mold core (21) and lower mold core (22) of the elastic mold core (2) surround to form an elastic opening (20). The molding body (02) includes a lower mold cavity (3) and an upper mold cavity (4) that is vertically raised and lowered relative to the lower mold cavity (3). The lower mold cavity (3) has a lower positioning groove (31) at its rear end. When the upper mold cavity (4) closes the lower mold cavity (3), at least one molding cavity (020) is formed between the two cavities and a sealing hole (024) and a wire passage hole (022) are formed at the front end. The sealing hole (024) elastically covers or conformally covers the cable (003). The injection holes (021) on both sides of the molding cavity (020) are directly opposite the gate (004) of the connector (00). The injection holes (021) are connected to the vertical injection hole (41) of the upper mold cavity (4). The positioning fixture (01) moves out of the molding body (02), the elastic mold core (2) inserts the front port (001) of the connector (00) and the elastic port (20) covers the PCB board (002); the positioning fixture (01) moves into the lower positioning groove (31) and the connector (00) enters the molding cavity (020), the glue enters the gate (004) from the two side injection holes (021), forming an inner mold (005) of an integral injection molding connecting cable (003) and shell (006).

2. The double-sided glue-feeding molding device according to claim 1, characterized in that, The front wall of the mold strip (1) is symmetrically provided with two vertical limiting grooves (101) at both ends, and the front wall of the lower positioning groove (31) is symmetrically provided with two limiting posts (30) at both ends. When the two cavities are opened, the mold strip (1) is horizontally inserted above the lower positioning groove (31) and then vertically descends into the groove. The limiting posts (30) are inserted into the limiting groove (101). The length of the template (1) is greater than the length of the lower positioning groove (31), which facilitates the placement and removal of the positioning fixture (01).

3. The dual-sided glue-feeding molding device according to claim 2, characterized in that, The limiting groove (101) is a rectangular vertical groove, and the limiting post (30) is a rectangular post. The lower section of the limiting post (30) is inserted into the rectangular shaft hole of the lower positioning groove (31) and the front side of the upper section is inserted into the vertical groove of the front groove wall of the lower positioning groove (31). The rear side of the upper section of the limiting post (30) cooperates with the limiting groove (101).

4. The dual-sided glue-feeding molding device according to claim 2, characterized in that, The upper mold cavity (4) has an upper positioning groove (42) at its rear end that is vertically opposite to the lower positioning groove (31). The upper positioning groove (42) and the lower positioning groove (31) are closed to form a positioning groove (023) for accommodating the mold strip (1).

5. The double-sided glue-feeding molding device according to claim 4, characterized in that, The lower mold cavity (3) is symmetrically provided with two lower molding grooves (34) in the middle, and the upper mold cavity (4) is symmetrically provided with two upper molding grooves (44) in the middle. The two molding grooves close to form two symmetrical molding cavities (020). Each molding cavity (020) is symmetrically provided with two transverse injection holes (021) on both sides. The four injection holes (021) are connected to the four side outlet channels (0251) of the glue conveying channel (025). The central inlet channel (0252) of the glue conveying channel (025) is connected to the inlet hole (41).

6. The double-sided glue-feeding molding device according to claim 5, characterized in that, The conical hole at the upper end of the injection hole (41) is detachably connected to the transition gate sleeve (12), which is adapted to connect to the high-pressure injection nozzle; when the transition gate sleeve (12) is removed, the conical hole is directly connected to the adapted low-pressure injection nozzle.

7. The double-sided glue-feeding molding device according to claim 1, characterized in that, It also includes a separate upper sealing strip (5) and a lower sealing strip (6). The lower sealing strip (6) is threaded to the lower mounting groove (32) of the lower mold cavity (3), and the upper sealing strip (5) is threaded to the upper mounting groove (45) of the upper mold cavity (4). When the two are closed, they can form a sealing hole (024) that is directly opposite to the molding cavity (020) and the wire hole (022). The sealing hole (024) can wrap and seal the cable (003) and close the molding cavity (020).

8. The double-sided glue-feeding molding device according to claim 7, characterized in that, The upper sealing strip (5) has multiple upper grooves at equal intervals on its lower wall, and the lower sealing strip (6) has multiple lower grooves at equal intervals on its upper wall. The upper and lower grooves are closed to form a sealing hole that is compatible with the cable (003). Alternatively, the lower wall of the upper sealing strip (5) and the upper wall of the lower sealing strip (6) may be inlaid or integrally injection molded with elastic rubber skin, and the two rubber skins are elastically pressed and interference-sealed to seal the gap.

9. The double-sided glue-feeding molding device according to claim 1, characterized in that, The upper mold core (21) and the lower mold core (22) are two pieces of plastic elastomer; the positioning boss (210) on the lower surface of the upper mold core (21) is inserted into the positioning groove (220) of the lower mold core (22) to form an elastic mold core (2).

10. The double-sided glue-feeding molding apparatus according to any one of claims 1 to 9, characterized in that, The molding body (02) also includes guide posts (9) and sliding bearings. The sliding bearings are fixed in the connecting holes around the upper mold cavity (4). The lower end of the guide post (9) is fixedly connected to the four corners of the lower mold cavity (3) and the upper end is slidably connected to the sliding bearing. The molding body (02) also includes a hollow rectangular base (7) and a lifting part (8). The lifting part (8) is located inside the base (7). Multiple ejector pins of the lifting part (8) can vertically lift and lower through the base (7), the lower mold cavity (3) to lift the connector (00), the positioning fixture (01) and the upper mold cavity (4).

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