A multi-core wire winding machine head

Abstract

The utility model discloses a multi -core wire harness machine head, including by front to rear to set up body, mould fixed plate, mould cover plate, the body is through the conical close fit and is provided with the movement core, the middle part of mould fixed plate is provided with the installation groove, the installation groove is matched and is connected with the mould, the movement core outer surface is provided with the inward recessed material groove, the body is provided with the feed port of intercommunication material groove, the body with mould fixed plate between, mould fixed plate with mould cover plate between respectively be provided with the connecting piece and carry out the hinged joint. The utility model only needs to carry out the alignment installation of mould fixed plate and body when replacing the mould, need not again to the tedious positioning of mould, and the hinged joint structure is formed through the connecting piece between mould fixed plate and body, when dismounting mould fixed plate, it is very convenient.

Description

Technical Field

[0001] This utility model relates to the field of cable injection molding head technology, and in particular to a multi-core ribbon cable injection head. Background Technology

[0002] Multi-core parallel flatbed cables are the "main artery" for achieving high-bandwidth, high-reliability internal interconnections in modern high-end electronic systems. They represent the highest level of cable technology in high-density integration, high-frequency and high-speed transmission, complex electromagnetic compatibility design, and precision manufacturing. Their development has directly driven advancements in data centers, high-performance computing, aerospace, and high-end medical equipment, serving as an indispensable key component connecting the various core modules within these complex systems.

[0003] As a core component of ribbon cable production, the extrusion molding process is a crucial factor determining the quality of the ribbon cable. The structure of a ribbon cable injection molding head typically involves a core assembly and a main body, with the main body connected to a flange. The flange delivers molten injection material to the core assembly. The mold, which wraps the core wire with the molten injection material to form the injection molded product, is then aligned and fixed to the core assembly via a mold fixing structure, guiding the molten injection material from the core assembly onto the mold. The existing ribbon cable injection molding heads suffer from several problems. The main method of fixing the entire assembly is with screws, which often requires complete disassembly and repositioning of the mold when changing it, making mold replacement inconvenient. Due to the multi-core wire structure, the injection cavity is relatively long, and the molten injection material at the edges cools faster than in the center during injection. This uneven heating and cooling often results in uneven thickness of the extruded plastic, affecting production efficiency and quality. Furthermore, the injection channels of multi-ribbed injection molding heads are prone to material accumulation in dead zones, making cleaning residual material from the injection channels a very troublesome task. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-core ribbon cable head.

[0005] To achieve the above objectives, a multi-core ribbon cable head includes a body, a mold fixing plate, and a mold cover plate arranged from front to back. A core is fitted inside the body via a conical joint. The mold fixing plate has a mounting groove in its center, and a mold is fitted into the mounting groove. The outer surface of the core has an inwardly recessed material groove. The body has a feed inlet communicating with the material groove. Connectors are provided between the body and the mold fixing plate, and between the mold fixing plate and the mold cover plate, for hinged connections. Each connector includes a fixed end and a movable end. The movable end has a strip groove. The body and the mold cover plate are connected to the fixed end of the connector, and the mold fixing plate is connected to the movable end. The mold fixing plate has a connecting shaft that corresponds to the strip groove of the connector, forming a movable hinged structure. The mold fixing plate has multiple internal fixing screws that are threadedly connected to the body. The mold cover plate has multiple external fixing screws that pass through the mold fixing plate and are threadedly connected to the body.

[0006] Because the mechanism and the body are tightly fitted by a cone, after installation, the material channel forms a cavity for the flow of molten injection material inside the body. The molten injection material flows into the mold through the material channel for injection extrusion and routing. Since the mold is installed in the mounting slot, when changing the mold, it is only necessary to align the mold fixing plate with the body, without the need for cumbersome mold positioning. The mold fixing plate and the body form a hinge structure through the connecting parts, which makes it very convenient to disassemble and assemble the mold fixing plate. When changing the mold, it is only necessary to remove the mold fixing plate, replace the mold, and then reinstall it. The connecting parts cooperate with the connecting shaft through the strip groove, which allows the mold fixing plate and the mold cover plate to have a certain range of motion while being hinged. This provides more operating space for disassembling and assembling the mold, which is convenient. The disassembly and assembly of the mold fixing plate and the mold cover plate can be achieved by simply using the internal fixing screws and the external fixing screws. This allows for convenient and quick mold changing, greatly improving efficiency and ensuring accuracy.

[0007] Preferably, the mold cover plate is provided with an outer positioning pin, the mold fixing plate is provided with an outer positioning hole corresponding to the outer positioning pin, the mold fixing plate is provided with an inner positioning pin, and the body is provided with an inner positioning hole corresponding to the inner positioning pin.

[0008] Considering that although the mold fixing plate and mold cover plate can be flexibly positioned through the hinge structure during installation, the accuracy is not enough, external positioning pins and internal positioning pins are set for positioning and installation, and then fixed by external fixing screws and internal fixing screws. The installation is convenient, quick and accurate.

[0009] Preferably, the mold fixing plate has mold heating grooves on both sides of the mold for placing heating rods, and the body has multiple core heating grooves for placing heating rods evenly arranged around the core.

[0010] The mold heating groove and the core heating groove are set up to install heating rods. The heating rods raise the temperature to ensure that the injection molten material is kept warm in the core and mold, preventing uneven wall thickness of the injection molded product caused by unstable injection molten material temperature, and ensuring injection quality.

[0011] Preferably, the upper end of the mold fixing plate is provided with an upper baffle for sealing the mold heating groove, and the lower end of the body is provided with a lower baffle for sealing the mechanism heating groove.

[0012] Preferably, the mold includes a mold core and a mold sleeve. The mold core is provided with a punch body, and the mold sleeve is provided with a cavity corresponding to the punch body. An injection cavity is spaced between the punch body and the cavity. The punch body is provided with a plurality of core wire holes that penetrate the mold core from front to back. The mold sleeve is provided with a plurality of exit holes that correspond to the core wire holes respectively. The exit holes are connected to the injection cavity. A connecting groove is provided between adjacent exit holes to connect the two. The mold core has strip-shaped injection runners evenly arranged on both sides of the punch body along its length direction, which are connected to the injection cavity. The other end of the injection runners is connected to the material groove.

[0013] The core wire passes through the core wire hole, contacts the molten material in the injection cavity, and is output from the outlet hole. The connection groove can make the injection molded product a ribbon structure instead of multiple single wire structures.

[0014] Preferably, a barrier block is provided in the middle of the injection molding channel, and the barrier block narrows from the middle to both ends of the injection molding channel to form a double cone structure.

[0015] The function of the barrier block is to separate the injection flow channel, preventing the injection flow channel area from being too large and making it difficult to clean up the excess material. The double cone structure design helps to guide the injection molten material through and prevents the formation of injection dead corners in the injection flow channel.

[0016] Preferably, the connection points between the two ends of the punch and the mold core are provided with a guide arc surface that tapers towards the rear center, and the guide arc surface is connected to the injection runner.

[0017] The purpose of setting the guide arc surface is to guide the injection molten material at both ends of the punch body, and to prevent uneven filling of the molten material from causing uneven wall thickness of the wiring.

[0018] Preferably, the mold core and the mold sleeve are each provided with at least two corresponding positioning through holes.

[0019] Positioning through holes can be used to insert pins to position and fix the model and mold sleeve, strengthening the tightness of the connection between the two.

[0020] Preferably, the movement is provided with a feeding groove in the middle, and the core wire holes are all in the feeding groove area. The front end of the body is provided with a movement pressure plate for fixing and encapsulating the movement. The movement pressure plate is fixed to the movement and the body respectively by screws. The movement pressure plate is provided with a front hollow area in the area corresponding to the feeding groove.

[0021] The core wire enters the core wire hole through the feed channel. The mechanism pressure plate is fixed to the mechanism and the body respectively, which can ensure its stability, improve the packaging effect of the mechanism, and ensure the packaging accuracy.

[0022] Preferably, the body is connected to a flange, the flange is provided with an injection port and a feed port communicating, and a flange heating coil is sleeved on the outside of the flange.

[0023] The flange facilitates connection to the injection molding machine for injection molding, and the flange heating coil can heat the flange to ensure the heat preservation effect of the molten material injected into the flange.

[0024] Compared with the prior art, the beneficial effects of this utility model are: This invention features a mechanism where the core and body are tightly fitted together via a conical joint. After installation, the material channel forms a cavity for the flow of molten injection material inside the body. The molten injection material flows into the mold through the material channel for injection extrusion and routing. Since the mold is installed in the mounting slot, mold replacement only requires aligning the mold fixing plate with the body, eliminating the need for cumbersome mold positioning. The mold fixing plate and body are connected by a hinge structure, making it very convenient to disassemble and assemble the mold fixing plate. Mold replacement only requires disassembling the mold fixing plate, replacing the mold, and then reinstalling it. The connector, through a slotted groove and a connecting shaft, allows the mold fixing plate and mold cover plate to have a certain range of motion while hinged, providing more operational space and convenience for mold assembly and disassembly. The disassembly and assembly of the mold fixing plate and mold cover plate can be achieved simply by using internal and external fixing screws. This allows for quick and easy mold replacement, greatly improving efficiency and ensuring accuracy.

[0025] The injection runner system, with its barrier blocks and guide arc surfaces, ensures that there are no dead corners for material to accumulate inside the mold core. This facilitates the removal of the internal injection plastic after injection molding, preventing residual material from remaining. The mold heating groove allows for the placement of heating rods to heat the mold, ensuring a constant temperature of the injection molten material. This enables balanced temperature in multi-core extrusion, stable product quality, improved production efficiency and product consistency, and also solves the problem of thin insulation layers on the edge core wires of traditional large-size ribbon cables, guaranteeing production quality. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0029] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0030] Figure 4 This is a schematic diagram of the structure of this utility model.

[0031] Figure 5 This is a schematic diagram of the mechanism cover plate structure of this utility model.

[0032] Figure 6 This is a schematic diagram of the main body structure of this utility model.

[0033] Figure 7 This is a schematic diagram of the partial explosion structure of this utility model.

[0034] Figure 8 This is a schematic diagram of the partial explosion structure of this utility model.

[0035] Figure 9 This is a schematic diagram of the movement structure of this utility model.

[0036] Figure 10 This is a schematic diagram of the mold core structure of this utility model.

[0037] Figure 11 This is a schematic diagram of the mold core of this utility model from another perspective.

[0038] Figure 12 This is a schematic diagram of the mold structure of this utility model.

[0039] Figure 13 This is a schematic diagram of the cross-sectional structure of the mold of this utility model.

[0040] Figure 14 This is a schematic diagram of the connecting component structure of this utility model. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0042] This utility model provides a multi-core ribbon cable head, such as Figures 1-14As shown, the device includes a body 1, a mold fixing plate 2, and a mold cover plate 3 arranged from front to back. A core 4 is tightly fitted inside the body 1 via a conical joint. The mold fixing plate 2 has a mounting groove 21 in its center, within which a mold 5 is fitted. The mold 5 and core 4 are aligned and installed through the connection between the mold fixing plate 2 and the body 1. The outer surface of the core 4 has an inwardly recessed material groove 41, which, together with the inner wall of the body 1, forms a cavity for the flow of molten injection material. The body 1 has an inlet 11 connecting to the material groove 41. Molten injection material enters the material groove 41 through the inlet 11 and then flows into the mold 5 for injection molding. Connectors 6 are provided between the body 1 and the mold fixing plate 2, and between the mold fixing plate 2 and the mold cover plate 3, for hinged connections. Each connector 6 includes a fixed end 61 and a movable end 62. The movable end 62 has a strip groove 63. The body 1 and the mold cover plate 3 are respectively connected to the connector 6. The fixed end 61 is connected to the mold fixing plate 2, which is connected to the movable end 62, so that the mold fixing plate 2 and the mold cover plate 3 form a flip-up structure, which is convenient for disassembly and positioning. Since the mold 5 is set in the mounting groove 21, the positioning and installation of the mold fixing plate 2 is achieved, which also achieves the alignment and installation of the mold 5. Considering the space required for the installation of the mold 5, the mold fixing plate 2 is provided with a connecting shaft 22, which corresponds to the strip groove 63 of the connecting piece 6 to form a movable hinge structure. The strip groove 63 provides more space for the mold fixing plate 2 and the mold cover plate 3 to move, which is convenient for disassembling and assembling the mold. For the fixing of the mold fixing plate 2 and the mold cover plate 3, the mold fixing plate 2 is provided with multiple internal fixing screws 23, which are threaded to the body 1 respectively. The mold cover plate 3 is provided with multiple external fixing screws 31, which pass through the mold fixing plate 2 and are threaded to the body 1 respectively. Disassembly and assembly can be achieved by simply removing and installing the external fixing screws 31 and the internal fixing screws 23.

[0043] The mold cover plate 3 is provided with an outer positioning pin 32, the mold fixing plate 2 is provided with an outer positioning hole 24 corresponding to the outer positioning pin 32, the mold fixing plate 2 is provided with an inner positioning pin 25, and the body 1 is provided with an inner positioning hole 12 corresponding to the inner positioning pin 25. When the mold cover plate 3 and the mold fixing plate 2 are aligned and installed, they can be positioned by the outer positioning pin 32 cooperating with the outer positioning hole 24, and then locked by the outer fixing screw 31. When the mold fixing plate 2 and the body 1 are aligned and installed, they can be positioned by the inner positioning pin 25 cooperating with the inner positioning hole 12, and then locked by the inner fixing screw 23. As for the disassembly of the mold fixing plate 2 and the mold cover plate 3, the setting of the strip groove 63 provides just enough displacement space for the outer positioning pin 32 and the inner positioning pin 25 to disengage.

[0044] To address the insulation requirements of the molten injection material within the mold 5, the mold fixing plate 2 is evenly arranged with mold heating grooves 26 on both sides of the mold 5, which can hold heating rods for heating and insulation. Similarly, to address the insulation requirements of the molten injection material within the core 4, the body 1 is evenly arranged with multiple core heating grooves 13 around the core 4, which can hold heating rods for heating and insulation. The heating rods can be implemented using any existing technology.

[0045] To ensure the stability of the heating rod after installation and to prevent excessive heat loss, the upper end of the mold fixing plate 2 is provided with an upper baffle 261 for encapsulating the mold heating groove 26, and the lower end of the body 1 is provided with a lower baffle 131 for encapsulating the core heating groove 13. Both the upper baffle 261 and the lower baffle 131 can be locked and fixed with any existing screw.

[0046] The mold 5 includes a mold core 51 and a mold sleeve 52. The mold core 51 is provided with a punch 511, and the mold sleeve 52 is provided with a die groove 521 corresponding to the punch 511. An injection cavity 53 is spaced between the punch 511 and the die groove 521. The punch 511 is provided with a plurality of core wire holes 512 that penetrate the mold core 51 from front to back. The mold sleeve 52 is provided with a plurality of wire outlet holes 522 that correspond to the core wire holes 512 respectively. The wire outlet holes 522 are connected to the injection cavity 53. The core wire enters the injection cavity 53 through the core wire holes 512 and comes into contact with the molten injection material. Then, it is extruded through the wire outlet holes 522 to form the required cable structure. For wiring, a connecting groove (not shown in the figure) is provided between adjacent outlet holes 522 to connect the two. The injection molten material can be connected here to form a wiring structure. Otherwise, the extruded product will be multiple separate cables. Considering that the wiring structure has multiple core holes 512 for arrangement and is relatively long, in order to ensure the uniformity of material usage and pressure during injection, the mold core 51 has strip-shaped injection channels 513 evenly arranged on both sides of the punch body 511 along its length direction, which are connected to the injection cavity 53. The other end of the injection channel 513 is connected to the material groove 41. The mold cover plate 3 is provided with a rear hollow area 33 in the area corresponding to the outlet hole 522.

[0047] Considering that the remaining material in the injection runner 513 needs to be cleaned after injection molding, and to avoid the presence of dead corners in the injection runner 513 that may cause residue, a baffle block 514 is provided in the middle of the injection runner 513. The length of the injection runner 513 is reduced to facilitate the cleaning of the remaining material. The baffle block 514 is a double-cone structure that tapers from the middle to both ends of the injection runner 513. Whether during injection molding or when cleaning the remaining material, the baffle block 514 can play a guiding role, which is conducive to the removal of the remaining material without affecting the injection molding.

[0048] Considering that the pressure of the injection molten material at both ends of the injection line is lower than that at other locations, which can easily lead to insufficient filling of the injection molten material and a thinner product wall at that location, a guide arc surface 515 that tapers towards the rear center is provided at the connection between the two ends of the punch body 511 and the mold core 51. The guide arc surface 515 is connected to the injection runner 513. By setting the guide arc surface 515, the filling of the injection molten material is better guided. The setting of the guide arc surface 515 also avoids the formation of dead corners where material is trapped, which is conducive to the subsequent removal of excess material.

[0049] The mold core 51 and the mold sleeve 52 are respectively provided with at least two front and rear corresponding positioning through holes 54. The positioning through holes 54 can be aligned and connected by any existing pin, so that the mold core 51 and the mold sleeve 52 can be further aligned, installed and fixed to ensure the tightness of the connection.

[0050] The mechanism 4 has a feeding groove 42 in the middle, and the core wire holes 512 are all located in the feeding groove 42 area. The main function of the feeding groove 42 is to prevent air leakage, so that the core wire can pass smoothly through the core wire holes 512. After the mechanism 4 is aligned and installed with the body 1, the mechanism 4 needs to be fixed. To ensure that the mechanism 4 is properly installed and the connection is stable after alignment, the front end of the body 1 is provided with a mechanism pressure plate 7 for fixing and encapsulating the mechanism 4. The mechanism pressure plate 7 is fixed to the mechanism 1 and the body 1 respectively by screws, thereby ensuring the uniqueness and stability of the installation position of the mechanism 4. The mechanism pressure plate 7 has a front hollow area 71 in the area corresponding to the feeding groove 42.

[0051] The main body 1 is connected to a flange 8, which has an injection port 81 that communicates with the feed port 11. The flange 8 is connected to the injection molding machine for injection molding. Considering the heat preservation requirements of the molten material inside the flange 8, a flange heating ring (not shown in the figure) is fitted on the outside of the flange 8. The flange heating ring heats and preserves the molten material. The flange heating ring can be implemented using any existing technology.

[0052] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A multi-core ribbon cable head, characterized in that, The device comprises a main body, a mold fixing plate, and a mold cover plate arranged from front to back. A mechanism is fitted inside the main body via a conical joint. The mold fixing plate has a mounting groove in its center, within which a mold is fitted. The outer surface of the mechanism has an inwardly recessed material groove. The main body has a feed inlet communicating with the material groove. Connectors are provided between the main body and the mold fixing plate, and between the mold fixing plate and the mold cover plate, for hinged connections. Each connector includes a fixed end and a movable end. The movable end has a slotted groove. The main body and the mold cover plate are connected to the fixed end of the connector, and the mold fixing plate is connected to the movable end. The mold fixing plate has a connecting shaft that corresponds to the slotted groove of the connector, forming a movable hinged structure. The mold fixing plate has multiple internal fixing screws that are threadedly connected to the main body. The mold cover plate has multiple external fixing screws that pass through the mold fixing plate and are threadedly connected to the main body.

2. The multi-core ribbon cable head according to claim 1, characterized in that, The mold cover plate is provided with an outer positioning pin, the mold fixing plate is provided with an outer positioning hole corresponding to the outer positioning pin, the mold fixing plate is provided with an inner positioning pin, and the body is provided with an inner positioning hole corresponding to the inner positioning pin.

3. The multi-core ribbon cable head according to claim 1, characterized in that, The mold fixing plate has mold heating grooves on both sides of the mold for placing heating rods, and the body has multiple core heating grooves for placing heating rods evenly arranged around the core.

4. A multi-core ribbon cable machine head according to claim 3, characterized in that, The upper end of the mold fixing plate is provided with an upper baffle for sealing the mold heating groove, and the lower end of the body is provided with a lower baffle for sealing the mechanism heating groove.

5. A multi-core ribbon cable head according to claim 1, characterized in that, The mold includes a mold core and a mold sleeve. The mold core is provided with a punch body, and the mold sleeve is provided with a cavity corresponding to the punch body. An injection cavity is spaced between the punch body and the cavity. The punch body is provided with a plurality of core wire holes that penetrate the mold core from front to back. The mold sleeve is provided with a plurality of exit holes that correspond to the core wire holes respectively. The exit holes are connected to the injection cavity. A connecting groove is provided between adjacent exit holes to connect the two. The mold core has strip-shaped injection runners evenly arranged on both sides of the punch body along its length direction, which are connected to the injection cavity. The other end of the injection runners is connected to the material groove.

6. A multi-core ribbon cable head according to claim 5, characterized in that, A baffle block is provided in the middle of the injection molding channel, and the baffle block narrows from the middle to both ends of the injection molding channel to form a double cone structure.

7. A multi-core ribbon cable head according to claim 5, characterized in that, The connection points between the two ends of the punch and the mold core are provided with a guide arc surface that tapers towards the rear center, and the guide arc surface is connected to the injection runner.

8. A multi-core ribbon cable head according to claim 5, characterized in that, The mold core and mold sleeve are each provided with at least two corresponding positioning through holes.

9. A multi-core ribbon cable head according to claim 1, characterized in that, The movement is provided with a feeding channel in the middle, and the core wire holes are all in the feeding channel area. The front end of the body is provided with a movement pressure plate for fixing and sealing the movement. The movement pressure plate is fixed to the movement and the body respectively by screws. The movement pressure plate is provided with a front hollow area in the area corresponding to the feeding barrel groove.

10. A multi-core ribbon cable machine head according to claim 1, characterized in that, The body is connected to a flange, the flange is provided with an injection port and a feed port, and a flange heating coil is sleeved on the outside of the flange.

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