Multi-core combined mold

Abstract

The utility model relates to the technical field of dies, in particular to a multi-core combined die which comprises an inner die and an outer die, a second positioning hole is formed in one end of the inner die, a first positioning hole is formed in the outer die in a penetrating mode, and a positioning pin is fixedly installed in the first positioning hole. The second positioning hole is used for installing and inserting one end of a positioning pin, a positioning convex circular table is arranged at one end of the inner die, a positioning concave circular groove is formed in one end of the outer die, and the positioning convex circular table is used for installing and inserting the positioning concave circular groove. Through the arrangement of the positioning pin and the cooperative matching of the structures of the positioning convex circular truncated cone and the positioning concave circular groove, the positioning pin and the second positioning hole realize the axial positioning precision, and meanwhile, the annular convex circular truncated cone and the groove form radial self-centering constraint, so that the positioning mold can be quickly assembled, and the stability of concentric precision is ensured through double positioning; and the inner die and outer die combined die is convenient to disassemble and assemble the extruder head.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a multi-core combined mold. Background Technology

[0002] With the rapid development of the cable and optical fiber industry, the types of cables are gradually increasing. In addition to single-core cables, there are also dual-core and multi-core cables. The existing mold structure has technical problems such as difficulty in debugging and long debugging time.

[0003] Some molds have a split structure, with both the inner and outer molds using locating pins and the machine head for positioning. Due to the need for a proper fit, the positioning accuracy is not high, the concentricity of the inner and outer molds is poor, and it is inconvenient and time-consuming to adjust. Therefore, a multi-core combined mold is proposed. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a multi-core combined mold.

[0005] The technical solution adopted by this utility model to solve its technical problem is a multi-core combined mold, including an inner mold and an outer mold. One end of the inner mold is provided with a second positioning hole, and the interior of the outer mold is provided with a first positioning hole. A positioning pin is fixedly installed inside the first positioning hole. The second positioning hole is used for inserting one end of the positioning pin. One end of the inner mold is provided with a positioning convex round platform, and one end of the outer mold is provided with a positioning concave round groove. The positioning concave round groove is used for inserting the positioning convex round platform. One end of the inner mold is provided with a second sealing groove, and one end of the outer mold is provided with a first sealing groove. The first sealing groove and the second sealing groove are adapted to each other. Both the first sealing groove and the second sealing groove are used for installing and placing a sealing rubber ring.

[0006] By adopting the above technical solution, through the setting of the positioning pin and the coordinated cooperation of the positioning convex round platen and the positioning concave round groove structure, the positioning pin and the second positioning hole achieve axial positioning accuracy, while the annular convex round platen and the groove form a radial self-centering constraint, which can quickly assemble the positioning mold. The dual positioning ensures the stability of concentric accuracy, and the combination of inner and outer molds makes it convenient to disassemble and assemble the extruder head.

[0007] Specifically, one end of the inner mold is provided with a second threaded hole, and the interior of the outer mold is provided with a first threaded hole. Both the first and second threaded holes are used for screw installation and insertion.

[0008] By adopting the above technical solution, after the initial positioning is completed, the operator takes a standard screw, passes it through the first threaded hole of the outer mold, and screws it into the second threaded hole of the inner mold to achieve a fixed connection between the inner mold and the outer mold.

[0009] Specifically, the interior of the first threaded hole is used for the installation and placement of the limiting plate, and a limiting groove is provided on the inner side of the first threaded hole. The limiting groove is used for the installation and insertion of the limiting block. The limiting block is movably installed on the side of the limiting plate, and there are two sets of both the limiting groove and the limiting block.

[0010] Specifically, the limiting plate has a storage cavity inside, which is used to store the limiting block. One end of the limiting block is fixedly connected to one end of a spring. There are multiple springs, and the other end of the multiple springs is fixedly connected to the inner side of the storage cavity.

[0011] Specifically, the end of the limiting block near the spring is fixedly connected to one end of the connecting plate, the other end of the connecting plate is fixedly connected to one end of the push block, the push block is movably installed inside the slide groove, and the slide groove is opened on the top surface of the limiting plate.

[0012] By adopting the above technical solution, after the screw is tightened, the limiting plate is placed into the first threaded hole, and the limiting block is locked into the limiting groove, thereby realizing the function of preventing the screw from being pushed and further strengthening the connection strength between the inner mold and the outer mold.

[0013] Specifically, the inner mold has internal mold holes arranged in a ring array, and the outer mold has internal conical recesses. The internal mold holes are connected to the interior of the internal conical recesses. An extrusion port is located at the center of one end of the outer mold and is connected to the interior of the internal conical recesses.

[0014] By adopting the above technical solution, the cable and optical fiber material flows from multiple small holes in the inner mold to the inner conical concave hole, and is finally extruded from the extrusion port.

[0015] The beneficial effects of this utility model are:

[0016] (1) The multi-core combined mold of this utility model, through the setting of positioning pins and the coordinated cooperation of positioning convex round table and positioning concave round groove structure, the positioning pin and the second positioning hole achieve axial positioning accuracy, while the annular convex round table and the groove form radial self-centering constraint, which can quickly assemble the positioning mold, the dual positioning ensures the stability of concentric accuracy, and the inner and outer mold combination mold facilitates the disassembly and assembly of the extruder head.

[0017] (2) The multi-core combined mold of this utility model fills the first sealing groove and the second sealing groove with a sealing rubber ring to achieve a sealing effect at the interface and ensure the waterproofness of the mold.

[0018] (3) The multi-core combined mold of this utility model, by placing the limiting plate into the first thread hole and letting the limiting block be inserted into the limiting groove, realizes the function of preventing the screw from being pushed, and further strengthens the connection strength between the inner mold and the outer mold. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the outer mold structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the inner mold structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the outer mold end face structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the inner mold end face structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the limiting plate structure of this utility model;

[0026] In the diagram: 1. Inner mold; 2. Sealing rubber ring; 3. Positioning pin; 4. Outer mold; 5. Limiting block; 6. Limiting plate; 7. Screw; 8. Inner conical recess; 9. Positioning recessed groove; 10. First threaded hole; 11. Limiting groove; 12. First sealing groove; 13. Extrusion port; 14. First positioning hole; 15. Second sealing groove; 16. Positioning convex frustum; 17. Second threaded hole; 18. Inner mold small hole; 19. Second positioning hole; 20. Push block; 21. Receiving cavity; 22. Connecting plate; 23. Spring; 24. Slide groove. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] As one embodiment of this utility model, such as Figures 1-6As shown, the multi-core combined mold of this utility model includes an inner mold 1 and an outer mold 4. One end of the inner mold 1 is provided with a second positioning hole 19, and the interior of the outer mold 4 is provided with a first positioning hole 14. A positioning pin 3 is fixedly installed inside the first positioning hole 14. The second positioning hole 19 is used for inserting one end of the positioning pin 3. One end of the inner mold 1 is provided with a positioning convex round platform 16, and one end of the outer mold 4 is provided with a positioning concave round groove 9. The positioning concave round groove 9 is used for inserting the positioning convex round platform 16. One end of the inner mold 1 is provided with a second sealing groove 15, and one end of the outer mold 4 is provided with a first sealing groove 12. The first sealing groove 12 and the second sealing groove 15 are adapted to each other. Both the first sealing groove 12 and the second sealing groove 15 are used for placing the sealing rubber ring 2.

[0029] In use, the operator first precisely embeds the sealing rubber ring 2 into the second sealing groove 15 of the inner mold 1, and then holds the outer mold 4 to axially align the positioning pin 3 with the second positioning hole 19 of the inner mold 1. As the two mold bodies gradually approach each other, the positioning convex platform 16 is simultaneously inserted into the positioning concave groove 9 to form radial constraint. At this time, the first sealing groove 12 and the second sealing groove 15 are completely filled by the sealing rubber ring 2, completing the three-dimensional spatial positioning and primary sealing.

[0030] The present invention also includes a second threaded hole 17 at one end of the inner mold 1 and a first threaded hole 10 through the interior of the outer mold 4. Both the first threaded hole 10 and the second threaded hole 17 are used for the insertion and installation of screws 7.

[0031] When in use, after the initial positioning is completed, the operator takes a standard screw 7, passes it through the first threaded hole 10 of the outer mold 4, and screws it into the second threaded hole 17 of the inner mold 1 to achieve a fixed connection between the inner mold 1 and the outer mold 4.

[0032] The present invention further includes that the interior of the first threaded hole 10 is used for the installation of the limiting plate 6, and a limiting groove 11 is provided on the inner side of the first threaded hole 10. The limiting groove 11 is used for the installation and insertion of the limiting block 5. The limiting block 5 is movably installed on the side of the limiting plate 6. Both the limiting groove 11 and the limiting block 5 are provided in two sets.

[0033] The present invention also includes a storage cavity 21 inside the limiting plate 6, the storage cavity 21 being used to store the limiting block 5, one end of the limiting block 5 being fixedly connected to one end of the spring 23, and multiple springs 23 being provided, the other end of the multiple springs 23 being fixedly connected to one side of the inner side of the storage cavity 21.

[0034] This utility model also includes that one end of the limiting block 5 near the spring 23 is fixedly connected to one end of the connecting plate 22, the other end of the connecting plate 22 is fixedly connected to one end of the push block 20, the push block 20 is movably installed inside the slide groove 24, and the slide groove 24 is opened on the top surface of the limiting plate 6.

[0035] When in use, after the screw 7 is fully tightened, the two push blocks 20 can be pinched with fingers to push the limiting block 5 into the storage cavity 21. Then, the limiting plate 6 is placed horizontally into the first threaded hole 10, with the push blocks 20 facing outwards, so that the limiting block 5 is aligned with the limiting groove 11. Then, the limiting plate 6 is pushed until the limiting block 5 is pushed into the limiting groove 11 by the spring 23, ensuring that the limiting plate 6 is firmly installed. This allows the limiting plate 6 to achieve the function of preventing the screw 7 from retracting, further strengthening the connection strength between the inner mold 1 and the outer mold 4.

[0036] The present invention also includes that the inner mold 1 has an inner mold hole 18 inside, and the inner mold hole 18 is arranged in a ring array in multiple places; the outer mold 4 has an inner conical concave hole 8 inside, and the multiple inner mold holes 18 are connected to the interior of the inner conical concave hole 8; and an extrusion port 13 is provided at the center of one end of the outer mold 4, and the extrusion port 13 is connected to the interior of the inner conical concave hole 8.

[0037] During use, the cable and optical fiber material flows from multiple inner mold holes 18 into the inner concave hole 8, and is finally extruded from the extrusion port 13.

[0038] When using this invention, if it is necessary to quickly connect the inner mold 1 and the outer mold 4, firstly, place the sealing rubber ring 2 in the second sealing groove 15. Then, align the positioning pin 3 with the second positioning hole 19 at one end of the inner mold 1 and insert it. At the same time, the positioning convex platform 16 will also align with the positioning concave groove 9 and be inserted, and the first sealing groove 12 will also align with the remaining protruding part of the sealing rubber ring 2 and be inserted. In this way, the inner mold 1 and the outer mold 4 are quickly connected, and the sealing rubber ring 2 fills the first sealing groove 12 and the second sealing groove 15, achieving a sealing effect at the interface to ensure the waterproofness of the mold. Finally, screw 7 is screwed into the second threaded hole 17 from the first threaded hole 10 to achieve a fixed connection between the inner mold 1 and the outer mold 4. After screw 7 is fully tightened, the limiting block 5 can be squeezed into the receiving cavity 21 by pinching the two push blocks 20 with your fingers. Then, the limiting plate 6 is placed horizontally into the first threaded hole 10, with the push blocks 20 facing outwards, so that the limiting block 5 is aligned with the limiting groove 11. Then, the limiting plate 6 is pushed until the limiting block 5 is pushed into the limiting groove 11 by the spring 23, ensuring that the limiting plate 6 is firmly installed, thereby enabling the limiting plate 6 to prevent the screw 7 from retracting, further strengthening the connection strength between the inner mold 1 and the outer mold 4.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Multi-core combined mold comprising an inner mold (1) and an outer mold (4), characterized in that, One end of the inner mold (1) is provided with a second positioning hole (19), the inside of the outer mold (4) is provided with a first positioning hole (14), the inside of the first positioning hole (14) is fixedly provided with a positioning pin (3), the second positioning hole (19) is used for the positioning pin (3) to install and insert one end, one end of the inner mold (1) is provided with a positioning convex circular table (16), one end of the outer mold (4) is provided with a positioning concave circular groove (9), the positioning concave circular groove (9) is used for the positioning convex circular table (16) to install and insert, one end of the inner mold (1) is provided with a second sealing groove (15), one end of the outer mold (4) is provided with a first sealing groove (12), the first sealing groove (12) is matched with the second sealing groove (15), the first sealing groove (12) and the second sealing groove (15) are used for the sealing rubber ring (2) to install and place.

2. The multi-core combined die of claim 1, wherein, One end of the inner mold (1) is provided with a second screw hole (17), the inside of the outer mold (4) is provided with a first screw hole (10), the first screw hole (10) and the second screw hole (17) are used for the screw (7) to install and insert.

3. The multi-core combined die of claim 2, wherein, The inside of the first screw hole (10) is used for the limiting plate (6) to install and place, the inner side of the first screw hole (10) is provided with a limiting groove (11), the limiting groove (11) is used for the limiting block (5) to install and insert, the limiting block (5) is movably installed on the side surface of the limiting plate (6), the limiting groove (11) and the limiting block (5) are provided with two groups.

4. The multi-core combined die of claim 3, wherein, The inside of the limiting plate (6) is provided with a receiving cavity (21), the receiving cavity (21) is used for the limiting block (5) to receive and place, one end of the limiting block (5) is fixedly connected with one end of the spring (23), the spring (23) is provided with a plurality of roots, the other end of the plurality of roots of the spring (23) is fixedly connected with the inner side of the receiving cavity (21).

5. The multi-core assembly mold according to claim 4, wherein One end of the limiting block (5) close to the spring (23) is fixedly connected with one end of the connecting plate (22), the other end of the connecting plate (22) is fixedly connected with one end of the push block (20), the push block (20) is movably installed in the inside of the sliding groove (24), the sliding groove (24) is provided on the top end surface of the limiting plate (6).

6. The multi-core assembly mold according to claim 1, wherein The inside of the inner mold (1) is provided with an inner mold small hole (18), the inner mold small hole (18) is provided with a plurality of roots in the form of annular array, the inside of the outer mold (4) is provided with an inner tapered recess (8), the plurality of roots of the inner mold small hole (18) and the inner tapered recess (8) are in communication, one end of the outer mold (4) is provided with an extrusion outlet (13), the extrusion outlet (13) is in communication with the inside of the inner tapered recess (8).

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