Figure 8 cable and figure 8 cable production equipment

Abstract

The invention discloses an 8-shaped cable and 8-shaped cable production equipment, which relate to the field of optical fiber technology, and comprise an upper cable and a lower cable, wherein the upper cable and the lower cable are connected via a connecting portion, and the upper cable and the lower cable form an 8-shaped structure, wherein the upper cable comprises an upper sheath, wherein a suspension wire is arranged in the upper sheath, and the lower cable comprises a lower sheath, wherein a water-blocking layer is arranged on the inner side of the lower sheath, wherein an armor layer is arranged in the water-blocking layer, wherein a binding yarn layer is arranged in the armor layer, and wherein a plurality of wire cores are arranged in the binding yarn layer; wherein a plurality of connecting through grooves are evenly arranged on the connecting portion; wherein a connecting piece is embedded in the connecting portion, wherein the connecting piece passes through the connecting portion, and is integrally formed with the upper sheath, the connecting portion and the lower sheath; and wherein the invention provides a plurality of connecting through grooves at the connecting portion, thereby reducing the self-weight of the cable on the one hand, ensuring the normal installation and use of the cable, and reducing the material used for the sheath on the other hand, thereby reducing the use cost of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of optical fibers, and in particular to a figure-8 cable and a figure-8 cable production device. Background Art

[0002] Optical cables are composed of multiple optical fibers. As a new generation of transmission media, optical fibers have greatly improved security, reliability and network performance compared to copper media. In addition, the bandwidth of optical fiber transmission far exceeds that of copper cables, and the maximum connection distance it supports is more than two kilometers, making it an inevitable choice for building larger networks. As optical fiber cables have the advantages of good electromagnetic interference resistance, strong confidentiality, high speed and large transmission capacity, the use of optical fibers is an inevitable trend in the development of communications.

[0003] At present, optical cables are mainly laid by aerial, direct burial, pipeline, etc. Among them, the most common way to lay optical cables in the field is aerial laying, because it can meet the needs of various environments such as mountainous areas and flat lands, and occupies less resources, so it has the advantages of strong environmental adaptability and better economy.

[0004] This laying method also has some defects. Compared with optical cables laid in pipelines and directly buried, overhead optical cables are all suspended in the open air. Due to the weaker safety control capabilities of optical cables, it is common for optical cables to be damaged by huge impacts. Large impacts cause optical fiber signal interruptions, leading to huge economic losses.

[0005] The Chinese patent application number 201410171669.7 discloses a self-supporting "8"-shaped optical cable. The self-supporting "8"-shaped optical cable includes a first sheath, a second sheath and a sling, the first sheath, the second sheath and the sling are connected as a whole and the three form an outer sheath with an "8"-shaped cross section, a steel strand is arranged in the first sheath, a water-blocking tape is arranged in the second sheath, a steel-plastic composite tape is arranged between the water-blocking tape and the outer peripheral surface of the second sheath, a reinforcing core is arranged in the center of the water-blocking tape, and the reinforcing core is made of glass fiber reinforced plastic material. In this solution, a steel-plastic composite tape structure is adopted and a reinforcing core is made of glass fiber reinforced plastic with reasonable compatibility, so as to enhance the tensile strength and compressive strength, ensure that the internal utility layer is not damaged during transportation and installation, and ensure the flattening force of the optical cable.

[0006] In this solution, although the strength of the cable is improved by providing a reinforcing core, the provision of the reinforcing core adds parts to the cable, thereby increasing the overall weight of the cable, which affects the installation. Summary of the invention

[0007] The object of the present invention is to provide a figure-8 cable and a figure-8 cable production device to solve the technical problem of improving the strength of the cable while ensuring stable installation.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A figure-8 cable comprises an upper cable and a lower cable, wherein the upper cable and the lower cable are connected via a connecting portion, and the upper cable and the lower cable form an 8-shaped structure, wherein the upper cable comprises an upper sheath, wherein a suspension wire is arranged in the upper sheath, and the lower cable comprises a lower sheath, wherein a water-blocking layer is arranged on the inner side of the lower sheath, wherein an armor layer is arranged in the water-blocking layer, wherein a binding yarn layer is arranged in the armor layer, and wherein a plurality of wire cores are arranged in the binding yarn layer; wherein a plurality of connecting through grooves are evenly arranged on the connecting portion; wherein a connecting piece is embedded in the connecting portion, wherein the connecting piece passes through the connecting portion, and is integrally formed with the upper sheath, the connecting portion and the lower sheath.

[0010] As a further solution of the present invention: the outer circumference of the suspension wire is provided with limit strips distributed in a ring array.

[0011] As a further solution of the present invention: a reinforcing core is arranged at the inner center of the binding yarn layer, a plurality of wire core grooves distributed in a ring array are arranged at the outer periphery of the reinforcing core, and the wire core is clamped at the wire core grooves.

[0012] As a further solution of the present invention: an 8-shaped cable production device, the production device is used for integrally forming the upper sheath, the connecting part and the lower sheath of the 8-shaped cable.

[0013] As a further solution of the present invention: the production equipment includes an equipment machine, and a guide seat, a forming machine and a traction machine are arranged side by side in sequence on the upper end of the equipment machine. The traction machine is used to pull the cable, and the guide seat is used to guide the cable so that the cable enters the forming machine vertically. The forming machine is used to form an upper sheath, a connecting part and a lower sheath on the outside of the suspension wire and the water-blocking layer.

[0014] As a further solution of the present invention: the molding machine includes a molding chassis, the molding chassis is penetrated by an 8-shaped molding hole, the molding chassis is provided with a feed joint, the feed joint is connected with the 8-shaped molding hole, the side wall of the molding chassis is provided with a through groove molding hole and a connecting piece through hole connected with the 8-shaped molding hole, a through groove molding piece for forming a connecting through groove is installed at the through groove molding hole, and a connecting piece feeding mechanism for embedding the connecting piece is installed at the connecting piece through hole.

[0015] As a further solution of the present invention: the through-groove forming part includes a forming seat fixedly arranged on the side wall of the forming machine, a forming push block is slidably arranged in the forming seat, a forming cylinder is fixedly installed on the side of the forming seat away from the forming machine, and the output end of the forming cylinder is fixedly connected to the forming push block.

[0016] As a further solution of the present invention: the connecting part feeding mechanism includes a feeding component fixedly installed on the side wall of the forming machine, the feeding component is used to feed the connecting part into the 8-shaped forming hole, and a clamping component is installed in the feeding component, and the clamping component is used to fix and clamp the connecting part.

[0017] As a further solution of the present invention: a loading component is fixedly installed on the upper end of the feeding component, and the loading component is used to feed the connecting parts into the feeding component in sequence.

[0018] As a further solution of the present invention: the feeding component includes a feeding seat, the feeding seat is provided with a connected installation cavity and a material receiving cavity, a feeding support is slidably arranged in the material receiving cavity, and a feeding cylinder for pushing the feeding support to slide is fixedly installed in the installation cavity.

[0019] Beneficial effects of the present invention:

[0020] By arranging a number of limit strips distributed in a circular array on the outer circumference of the suspension wire, an angular connection is formed between the suspension wire and the upper sheath. When the upper sheath is formed, the suspension wire and the limit strips are connected together, which effectively avoids rotational friction between the suspension wire and the upper sheath during the installation of the cable, improves the tightness of the connection between the suspension wire and the upper sheath, and thus improves the protection effect of the suspension wire.

[0021] The setting of the limit strip improves the overall strength of the entire upper cable, thereby improving the stability of the cable installation. Due to the stable installation of the cable, the rotational friction between the suspension wire and the upper sheath is reduced, thereby improving the protection effect of the suspension wire to another extent.

[0022] The overall strength of the lower cable is improved by setting a reinforcing core, thereby increasing the service life of the cable. In addition, the setting of the core groove allows the core to be evenly and stably distributed, effectively preventing the core from shifting in the yarn layer, thereby effectively ensuring the stability of the cable connection and preventing the cable from being disconnected due to cable displacement.

[0023] By arranging a plurality of connection through grooves at the connection part, on the one hand, the weight of the cable itself is reduced to ensure the normal installation and use of the cable, and on the other hand, the material used for the sheath is reduced, thereby reducing the use cost of the cable.

[0024] Compared with the overall solid structure of the traditional 8-shaped cable connection, the setting of the connecting groove will make the stability of the connection between the upper cable and the lower cable worse. In order to solve this problem, a connecting piece is embedded in the connection part to ensure the stability of the connection between the upper cable and the lower cable.

[0025] The production equipment provided by the present invention is specially used for embedding the connecting piece and generating the connecting through groove while integrally forming the upper sleeve, the connecting part and the lower sleeve.

[0026] Both sides of the molding chassis are provided with through-slot molding parts and connector feeding mechanisms. During the cable production process, parts on one side are used for production. When a single side fails or parts need to be supplemented, parts on the other side are enabled for production, thereby ensuring that there will be no downtime during the cable production process and effectively improving the cable production efficiency.

[0027] The material of the connecting rod is the same as the injection molding material of the sheath, so it can be used in the subsequent injection molding of the sheath, which will not cause waste of raw materials and solve the problem of surplus raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the figure-8 cable of the present invention;

[0030] Figure 2 It is a schematic diagram of the radial cross-sectional structure of the figure-8 cable of the present invention;

[0031] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the production equipment of the present invention;

[0032] Figure 4 It is a schematic diagram of the overall axial structure of the production equipment of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of a molding machine of the production equipment of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the through-groove forming part of the production equipment of the present invention;

[0035] Figure 7 It is a structural schematic diagram of a connecting piece feeding mechanism of the production equipment of the present invention;

[0036] Figure 8 It is a schematic diagram of the structure of the feeding components of the production equipment of the present invention;

[0037] Fig. 9 The present invention Figure 7 Schematic diagram of the main structure;

[0038] Fig.10 The present invention Fig. 9 Schematic diagram of the cross-sectional structure in the AA direction;

[0039] Fig.11 It is a schematic diagram of the three-dimensional structure of the clamping parts of the production equipment of the present invention;

[0040] Fig.12 It is a schematic diagram of the axonometric structure of the clamping components of the production equipment of the present invention.

[0041] In the figure: 100, upper cable; 101, upper sheath; 102, suspension wire; 103, limit strip; 200, connection part; 201, connection slot; 202, connection piece; 2021, connection piece support rod; 300, lower sheath; 400, water-blocking layer; 500, armor layer; 600, yarn binding layer; 700, wire core; 800, reinforcing core; 801, wire core slot; 802, through hole; 900, filling layer;

[0042] 1. Equipment machine; 2. Guide seat; 21. Lower guide groove; 22. Upper guide groove; 23. Limiting groove; 3. Forming machine; 31. 8-shaped forming hole; 32. Feeding joint; 33. Through-slot forming hole; 34. Connecting part through hole; 4. Tractor; 5. Through-slot forming part; 51. Forming seat; 52. Forming cylinder; 53. Pushing guide rod; 54. Forming push block; 6. Feeding component; 61. Feeding seat; 62. Mounting cavity; 63. Cylinder seat plate; 64. Feeding cylinder; 65. Feeding support plate; 66. Feeding support; 661. Upper wire groove; 662. Connecting section; 663. Lower wire groove; 67. Clamping through hole; 68. Receiving cavity; 7. Clamping component; 71. Fixed seat; 72. Pushing cylinder; 73. Clamping seat; 74. Connecting vertical plate; 75. Material clamping drive; 751. Material clamping cylinder; 752. Material clamping push plate; 753. Material clamping push rod; 754. Rotating connecting plate; 755. Material clamping support rod; 76. Driving connecting plate; 77. Connecting plate pin; 78. Semicircular chuck; 79. Support rod clamping groove; 8. Loading component; 81. Loading seat; 811. Storage trough; 812. Support rod connecting groove; 813. Side loading trough; 82. Side connecting plate; 83. Loading shaft; 84. Loading pulley; 85. Loading conveyor belt; 86. Loading baffle; 87. Loading drive; 871. Driving chassis; 872. Driving motor; 873. Driving shaft; 874. Driving gear; 875. Driven shaft; 876. Driving pulley; 877. Driven gear; 878. Transmission belt; 879. Driven pulley. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-2As shown, an embodiment of the first aspect of the present invention provides an 8-shaped cable, including an upper cable 100 and a lower cable, the upper cable 100 and the lower cable are connected by a connecting portion 200, the upper cable 100 and the lower cable form an 8-shaped structure, the upper cable 100 includes an upper sheath 101, a suspension wire 102 is arranged in the upper sheath 101, the lower cable includes a lower sheath 300, a water-blocking layer 400 is arranged on the inner side of the lower sheath 300, an armor layer 500 is arranged in the water-blocking layer 400, a binding yarn layer 600 is arranged in the armor layer 500, and a plurality of wire cores 700 are arranged in the binding yarn layer 600; a plurality of connecting through grooves 201 are evenly arranged on the connecting portion 200; a connecting piece 202 is embedded in the connecting portion 200, the connecting piece 202 passes through the connecting portion 200, and is integrally formed with the upper sheath 101, the connecting portion 200 and the lower sheath 300.

[0045] Specifically, the upper sheath 101 and the lower sheath 300 are used to provide external protection for the suspension wire 102 and the wire core 700, wherein the water-blocking layer 400 is used for waterproofing the lower cable, the armor layer 500 ensures the overall armor strength of the entire cable, and the binding yarn layer 600 protects and insulates the wire core 700.

[0046] Furthermore, a filling layer 900 is filled in the binding yarn layer 600, and the filling layer 900 keeps the wire core 700 fixed in the binding yarn layer 600, thereby effectively ensuring the stability of the cable connection and preventing the cable connection from falling off due to cable displacement.

[0047] The limiting strips 103 are distributed in a circular array on the outer circumference of the suspension line 102. The 8-shaped cable is installed by suspending the lower cable through the suspension line 102, and the suspension line 102 is protected by the upper sheath 101. During the installation of the suspension line 102, the shaking of the cable often causes rotational friction between the suspension line 102 and the upper sheath 101. Over time, a gap will be formed between the suspension line 102 and the upper sheath 101, causing rainwater to enter the upper sheath 101, affecting the protection effect of the suspension line 102.

[0048] In the present solution, a plurality of limiting strips 103 distributed in a circular array are arranged on the outer circumference of the suspension wire 102, so that an angular connection is formed between the suspension wire 102 and the upper sheath 101. When the upper sheath 101 is formed, the suspension wire 102 and the limiting strips 103 are connected together, thereby effectively avoiding rotational friction between the suspension wire 102 and the upper sheath 101 during the installation of the cable, improving the tightness of the connection between the suspension wire 102 and the upper sheath 101, and thus improving the protection effect of the suspension wire 102.

[0049] Furthermore, the overall strength of the entire upper cable 100 is improved by setting the limit strip 103, thereby improving the stability of the cable installation. Due to the stable installation of the cable, the rotational friction between the suspension wire 102 and the upper sheath 101 is reduced, thereby improving the protection effect of the suspension wire 102 to another extent.

[0050] In another optional embodiment, a reinforcing core 800 is disposed at the inner center of the binding yarn layer 600 , and a plurality of wire core grooves 801 distributed in a circular array are disposed at the outer periphery of the reinforcing core 800 , and the wire core 700 is clamped in the wire core grooves 801 .

[0051] The reinforcing core 800 is provided to improve the overall strength of the lower cable, thereby increasing the service life of the cable.

[0052] In addition, the arrangement of the wire core groove 801 enables the wire core 700 to be evenly and stably distributed, effectively preventing the wire core 700 from shifting in the binding yarn layer 600, thereby effectively ensuring the stability of the cable connection and preventing the cable connection from falling off due to cable displacement.

[0053] Specifically, although the strength of the cable is improved by providing a reinforcing core 800, the provision of the reinforcing core 800 adds parts to the cable, thereby increasing the overall weight of the cable, which affects the installation. Therefore, in order to solve this problem, the present embodiment provides a through hole 802 at the center of the reinforcing core 800, thereby effectively reducing the overall weight of the cable, and the reinforcing core 800 is made of lightweight materials, and the reinforcing core 800 is installed in sections according to the length of the cable.

[0054] The connection part 200 of the traditional figure-8 cable is an overall solid structure. Although such a structure makes the connection between the upper cable 100 and the lower cable more stable, on the one hand, such a structure will require more material for the sheath, increasing the production cost of the cable, and on the other hand, it will increase the weight of the cable itself. In order to ensure the normal installation of the cable, it is often necessary to reduce the thickness of the sheath and reduce the amount of other components of the cable to achieve a reduction in the overall weight, resulting in a reduction in the protection effect of the cable and insufficient quality of the cable itself.

[0055] In the present application, the quality of the cable is improved by adding a reinforcing core 800. While the weight is increased, a plurality of connecting grooves 201 are provided at the connecting portion 200. On the one hand, the weight of the cable itself is reduced to ensure the normal installation and use of the cable. On the other hand, the material used in the sheath is reduced, thereby reducing the cost of using the cable.

[0056] Compared with the overall solid structure of the traditional 8-shaped cable connecting part 200, the setting of the connecting groove 201 will make the stability of the connection between the upper cable 100 and the lower cable worse. In order to solve this problem, a connecting piece 202 is embedded in the connecting part 200 to ensure the stability of the connection between the upper cable 100 and the lower cable.

[0057] Furthermore, the connector 202 is of an I-shaped structure, with its upper portion disposed in the upper sheath 101, the middle portion penetrating in the connecting portion 200, and the lower portion disposed in the lower sheath 300, thereby achieving a stable connection between the upper and lower sheaths and ensuring the stability of the connection between the upper cable 100 and the lower cable.

[0058] More preferably, since the connector 202 needs to be embedded in the connecting part 200 when the upper sheath 101, the connecting part 200 and the lower sheath 300 are integrally formed, a connector support rod 2021 is provided at the side end of the connector 202, and the material of the connector support rod 2021 is the same as the material of the sheath. When the sheath is integrally formed, the connector 202 is first placed between the upper cable 100 and the lower cable, and then the connector 202 is embedded inside during the sheath injection molding, thereby strengthening the connecting part 200, and the material of the connector support rod 2021 is the same as the material of the sheath, ensuring that the connector 202 is better embedded in the connecting part 200.

[0059] The outstanding features of the figure-8 cable provided in the embodiment of the first aspect of the present application are that a connecting groove 201 is opened at the connecting part 200 and a connecting piece 202 is embedded between the connecting part 200 and the sheath. The figure-8 cable of this structure is different from the traditional figure-8 cable, so it is impossible to use traditional equipment to produce this figure-8 cable. Therefore, the production equipment provided in the embodiment of the second aspect of the present application is specifically used to produce the above-mentioned figure-8 cable with special structure.

[0060] It can be seen from the above records that other production equipment of the figure-8 cable of the present application is not much different from the traditional figure-8 cable equipment. The biggest difference lies in the integrated embedded connector 202 and the provision of a connecting groove 201 at the connecting portion 200. Therefore, the production equipment provided in the second aspect embodiment is specifically used to embed the connector 202 and generate the connecting groove 201 while integrally molding the upper sheath 101, the connecting portion 200 and the lower sheath 300.

[0061] See also Figure 3-12 As shown, a second embodiment of the present invention provides a figure-8 cable production device, which is used to integrally form an upper sheath 101, a connecting portion 200 and a lower sheath 300.

[0062] The production equipment includes an equipment machine 1, and a guide seat 2, a forming machine 3 and a traction machine 4 are arranged side by side on the upper end of the equipment machine 1. The traction machine 4 is used to pull the cable, and the guide seat 2 is used to guide the cable so that the cable enters the forming machine 3 vertically. The forming machine 3 is used to form an upper sheath 101, a connecting part 200 and a lower sheath 300 outside the suspension line 102 and the water-blocking layer 400.

[0063] Specifically, the guide seat 2 is provided with a lower guide groove 21 and an upper guide groove 22, which are respectively used to guide the suspension wire 102 and the lower cable, so that the cable can vertically enter the forming machine 3, and the side wall of the upper guide groove 22 is provided with a plurality of limit grooves 23, which cooperate with the limit grooves 23 to ensure that the limit strips 103 are tightly fitted with the suspension wire 102 during the integral forming process of the upper sheath 101, the connecting part 200 and the lower sheath 300.

[0064] The molding machine 3 includes a molding chassis, an 8-shaped molding hole 31 is penetrated on the molding chassis, a feed connector 32 is provided on the molding chassis, the feed connector 32 is connected to the 8-shaped molding hole 31, the side wall of the molding chassis is provided with a through groove molding hole 33 and a connecting piece through hole 34 connected to the 8-shaped molding hole 31, a through groove molding piece 5 for forming a connecting through groove 201 is installed at the through groove molding hole 33, and a connecting piece feeding mechanism for embedding the connecting piece 202 is installed at the connecting piece through hole 34.

[0065] Furthermore, through-slot forming parts 5 and connector feeding mechanisms are provided on both sides of the forming chassis. During the cable production process, components on one side are used for production. When a single side fails or additional production parts are needed, components on the other side are enabled for production, thereby ensuring that there will be no downtime during the cable production process and effectively improving the cable production efficiency.

[0066] Furthermore, connecting piece feeding mechanisms are provided on both sides of the through-slot forming piece 5 , so that connecting pieces 202 are embedded on both sides of the connecting through-slot 201 in the connecting portion 200 , effectively ensuring the overall strength of the connecting portion 200 .

[0067] The through-slot forming member 5 includes a forming seat 51 fixedly arranged on the side wall of the forming machine 3, a forming push block 54 is slidably arranged in the forming seat 51, a forming cylinder 52 is fixedly installed on the side of the forming seat 51 away from the forming machine 3, and the output end of the forming cylinder 52 is fixedly connected to the forming push block 54.

[0068] Furthermore, a plurality of push guide rods 53 are slidably connected to and penetrate the side wall of the forming seat 51 away from the forming machine 3 . One end of the push guide rod 53 is fixedly connected to the forming push block 54 , so as to limit and guide the sliding of the forming push block 54 .

[0069] Specifically, the thickness of the molding push block 54 is equal to the height of the connecting portion 200. During the injection molding process of the sheath, the molding cylinder 52 on one side drives the molding push block 54 to be inserted into the 8-shaped molding hole 31, and the end of the molding push block 54 is low-connected with the molding push block 54 on the other side, thereby realizing the middle partition of the 8-shaped molding hole 31, thereby forming a connecting groove 201 during the injection molding process of the sheath. When the injection molding cooling is completed, the molding cylinder 52 contracts and drives the molding push block 54 to slide into the groove molding hole 33. The cable after the sheath injection molding is completed moves outward under the action of the traction machine 4, completing the molding process of the connecting groove 201.

[0070] The connecting piece feeding mechanism includes a feeding component 6 fixedly mounted on the side wall of the molding machine 3 , and the feeding component 6 is used to feed the connecting piece 202 into the 8-shaped molding hole 31 . A clamping component 7 is installed in the feeding component 6 , and the clamping component 7 is used to fix and clamp the connecting piece 202 .

[0071] The feeding component 6 includes a feeding seat 61, in which a connecting installation cavity 62 and a receiving cavity 68 are provided. A feeding support 66 is slidably provided in the receiving cavity 68, and a feeding cylinder 64 for pushing the feeding support 66 to slide is fixedly installed in the installation cavity 62.

[0072] Specifically, a cylinder seat plate 63 is fixedly installed in the installation cavity 62, and a feeding cylinder 64 is fixedly installed on the cylinder seat plate 63. A feeding support plate 65 is fixedly installed at the output end of the feeding cylinder 64. The feeding support plate 65 is L-shaped and is slidably arranged in the receiving cavity 68, and the feeding support 66 is fixedly installed at the end of the feeding support plate 65.

[0073] Furthermore, in order to ensure the molding quality of the connecting part 200, the end of the feeding support 66 cooperates with the inner wall of the 8-shaped forming hole 31, specifically, an upper wire groove 661 is arranged on the upper part of the feeding support 66, and the upper wire groove 661 is an arc groove that cooperates with the outer periphery of the upper sleeve 101; an upper connecting section 662 is arranged in the middle part of the feeding support 66, and the height of the connecting section 662 is equal to that of the connecting part 200; and a lower wire groove 663 is provided at the lower part of the feeding support 66, and the lower wire groove 663 is an arc groove that cooperates with the outer periphery of the lower sleeve 300.

[0074] A clamping hole 67 is provided at the center of the feeding support 66, wherein the semicircular clamp 78 of the clamping component 7 is connected through the clamping hole 67 to fix and clamp the connecting member support rod 2021 of the connecting member 202, thereby ensuring that the connecting member 202 can be stably placed in the middle of the 8-shaped forming hole 31 during the injection molding process of the sheath.

[0075] The clamping component 7 includes a fixed seat 71 fixedly mounted on the feeding support plate 65, a pushing cylinder 72 is fixedly mounted on the fixed seat 71, a clamping seat 73 is fixedly mounted on the output end of the pushing cylinder 72, a connecting vertical plate 74 is fixedly provided on the clamping seat 73, a vertical plate through hole for installing a driving connecting plate 76 is provided on the connecting vertical plate 74, two groups of driving connecting plates 76 are rotatably mounted at the vertical plate through holes through connecting plate pins 77, one end of the driving connecting plate 76 is connected to a clamping drive 75 for driving it to rotate, and the other end of the driving connecting plate 76 is fixedly connected to a semicircular chuck 78, and the diameter of the semicircular chuck 78 is equal to the diameter of the clamping through hole 67.

[0076] The semicircular clamp 78 is provided with a support rod clamping groove 79 , and two groups of support rod clamping grooves 79 form a complete circular clamping groove, through which the connecting member support rod 2021 is fixedly clamped, thereby ensuring that the connecting member 202 can be stably and accurately embedded in the connecting part 200 .

[0077] Furthermore, the material clamping drive 75 includes a material clamping cylinder 751 fixedly mounted on the material clamping seat 73, the output end of the material clamping cylinder 751 is fixedly connected with a material clamping push plate 752, the material clamping push plate 752 is fixedly mounted with a material clamping push rod 753, the material clamping push rod 753 is rotatably connected with two groups of rotating connecting plates 754, and the two groups of rotating connecting plates 754 are rotatably connected with the two groups of driving connecting plates 76 through the material clamping support rods 755 respectively.

[0078] The clamping cylinder 751 drives the clamping push plate 752 to slide horizontally, and the clamping push plate 752 drives the clamping push rod 753 to move, thereby driving the two sets of driving connecting plates 76 to rotate synchronously under the action of the rotating connecting plate 754, realizing the automatic opening and closing of the support rod clamping groove 79, thereby completing the stable clamping of the connecting member support rod 2021 and the connecting member 202.

[0079] The specific steps of pushing the connecting piece 202 by the feeding component 6 and the clamping component 7 are as follows: when the connecting piece 202 falls into the receiving cavity 68, the pushing cylinder 72 first drives the clamping seat 73 to slide toward the connecting piece 202, so that the semicircular clamp 78 extends out of the clamping through hole 67, and then the clamping cylinder 751 drives the two groups of semicircular clamps 78 to rotate outward, so that the connecting piece support rod 2021 is in the two groups of support rod clamping grooves 79, and then the clamping cylinder 751 drives the two groups of semicircular clamps 78 to rotate inward, and fixes the connecting piece support rod 2021 in the support rod clamping groove 79, and then the pushing cylinder 72 drives the connecting piece 202 to slide outward, so that the end of the semicircular clamp 78 is flush with the end of the connecting section 662, and then the feeding cylinder 64 drives the entire clamping component 7 and the fixedly clamped connecting piece 202 to pass through the connecting piece through hole. Hole 34, extend the connector 202 into the 8-shaped forming hole 31 and hang it in the air, then embed the connector 202 into the connecting part 200 during the injection molding of the sheath, after the injection molding is cooled, the traction machine 4 pulls the cable out and breaks the connector support rod 2021, the pushing cylinder 72 drives the clamping seat 73 to move forward, the semicircular clamp 78 extends out of the clamping through hole 67, and then the clamping cylinder 751 drives the two groups of semicircular clamps 78 to rotate outward, and the remaining connector support rod 2021 is placed in the subsequent 8-shaped forming hole 31. Since the material of the connector support rod 2021 is the same as the injection molding material of the sheath, it can be used in the subsequent sheath injection molding, without causing waste of raw materials, and solving the problem of excess raw materials. The above steps are repeated later to achieve continuous embedding of the cable connector 202.

[0080] A loading component 8 is fixedly mounted on the upper end of the feeding component 6 , and the loading component 8 is used to feed the connecting pieces 202 into the feeding component 6 in sequence.

[0081] The connecting parts 202 are automatically added to the feeding part 6 by the loading part 8, so as to realize the automation and continuity of the embedding of the connecting parts 202, and effectively improve the production efficiency of the cable.

[0082] The loading component 8 includes a loading seat 81 fixedly set on the feeding seat 61, and a penetrating storage trough 811 is set on the loading seat 81. The storage trough 811 is connected with the material receiving chamber 68, and the side wall of the storage trough 811 is provided with a support rod connecting groove 812 for avoiding the connecting member support rod 2021, thereby ensuring that the connecting member 202 automatically falls in the storage trough 811.

[0083] Side loading troughs 813 are provided on both sides of the loading seat 81, and side connecting plates 82 are fixedly connected on both sides of the loading seat 81. Loading shafts 83 are rotatably installed on the upper and lower parts of the side connecting plates 82, and loading pulleys 84 are fixedly installed on the loading shaft 83. A loading conveyor belt 85 is transmission-connected between the upper and lower loading pulleys 84, and loading baffles 86 are evenly installed on the loading conveyor belt 85. The connecting piece 202 is supported and stored in the storage trough 811 by the loading baffles 86 on both sides, and automatically falls into the receiving cavity 68 as the loading conveyor belt 85 rotates.

[0084] A loading drive 87 is fixedly mounted on the loading seat 81 , and the loading drive 87 is used to drive the loading shaft 83 to rotate.

[0085] Specifically, the feeding drive 87 includes a driving chassis 871 fixedly mounted on the feeding seat 81 and a bearing seat fixedly mounted on the feeding seat 81, wherein a driving gear set is arranged in the driving chassis 871, a driving motor 872 is fixedly mounted on the driving chassis 871, a driving shaft 873 is fixedly mounted on the output end of the driving chassis 871, a bearing is arranged in the bearing seat, a driven shaft 875 is fixedly mounted on the inner ring of the bearing, wherein a driving gear 874 and a driving pulley 876 are fixedly mounted on the driving shaft 873, a driven gear 877 and a driving pulley 876 are fixedly mounted on the driven shaft 875, the driving gear 874 and the driven gear 877 are meshingly connected, so that the driving shaft 873 and the driven shaft 875 have opposite rotation directions, and driven pulleys 879 are fixedly mounted on the two groups of feeding shafts 83 located at the upper part, and the two groups of driven pulleys 879 are respectively connected to the two groups of driving pulleys 876 through transmission belts 878.

[0086] The loading steps of the loading component 8 to the connecting piece 202 are as follows: the driving motor 872 drives the driving shaft 873 to rotate, and drives the driven shaft 875 to rotate synchronously in the opposite direction through gear meshing. The driving shaft 873 and the driven shaft 875 synchronously drive the two sets of driven pulleys 879 and the loading shaft 83 to rotate in opposite directions through the driving pulley 876 and the transmission belt 878, thereby realizing the synchronous conveying rotation of the two sets of loading conveyor belts 85, and utilizing the loading baffle 86 on the loading conveyor belt 85 to realize automatic synchronous loading of the connecting piece 202.

[0087] The working principle of the present invention is as follows: when the cable needs to be subjected to sheath injection molding, the guide seat 2 guides the cable and the limit strip 103 so that the cable enters the molding machine 3 vertically. The cable enters the molding machine 3 under the action of the traction machine 4. During the sheath injection molding process, the molding cylinder 52 on one side drives the molding push block 54 to be inserted into the 8-shaped molding hole 31, and the end of the molding push block 54 is low-connected with the molding push block 54 on the other side, so as to realize the middle partition of the 8-shaped molding hole 31, thereby forming a connecting groove 201 during the sheath injection molding process; the driving motor 872 drives the driving shaft 873 to rotate The driven shaft 875 is driven to rotate synchronously in the opposite direction through gear meshing. The driving shaft 873 and the driven shaft 875 synchronously drive the two sets of driven pulleys 879 and the feeding shaft 83 to rotate in opposite directions through the driving pulley 876 and the transmission belt 878, so as to realize the synchronous conveying rotation of the two sets of feeding conveyor belts 85. The feeding baffle 86 on the feeding conveyor belt 85 is used to realize the automatic synchronous feeding of the connecting piece 202. When the connecting piece 202 falls into the receiving cavity 68, the pushing cylinder 72 first drives the clamping seat 73 to slide toward the connecting piece 202, so that the semicircular clamping head 78 extends out of the clamping through hole 67, and then the clamping cylinder 75 1 drives the two groups of semicircular chucks 78 to rotate outward, so that the connecting rod 2021 is in the two groups of rod clamping grooves 79, and then the clamping cylinder 751 drives the two groups of semicircular chucks 78 to rotate inward, and the connecting rod 2021 is fixedly clamped in the rod clamping grooves 79, and then the push cylinder 72 drives the connecting member 202 to slide outward, so that the end of the semicircular chuck 78 is flush with the end of the connecting section 662, and then the feeding cylinder 64 drives the entire clamping component 7 and the fixedly clamped connecting member 202 to pass through the connecting member through hole 34, and the connecting member 202 is extended into the 8-shaped forming hole 31 and suspended in the air, and then the sheath is injection molded. During the molding process, the connector 202 is embedded into the connector 200. When the injection molding is cooled, the molding cylinder 52 contracts and drives the molding push block 54 to slide into the through-groove molding hole 33. The cable with the completed sheath injection molding moves outward under the action of the traction machine 4, and at the same time, the connector support rod 2021 is torn off. The pushing cylinder 72 drives the clamping seat 73 to move forward, and the semicircular clamp 78 extends out of the clamping through hole 67. Then the clamping cylinder 751 drives the two groups of semicircular clamps 78 to rotate outward, and the remaining connector support rod 2021 is placed into the subsequent 8-shaped molding hole 31, and then retreats and resets to wait for the subsequent embedding of the connector 202.

[0088] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An 8-shaped cable production device, comprising an upper cable (100) and a lower cable, wherein the upper cable (100) and the lower cable are connected via a connecting portion (200), the upper cable (100) and the lower cable form an 8-shaped structure, the upper cable (100) comprises an upper sheath (101), a suspension wire (102) is arranged in the upper sheath (101), the lower cable comprises a lower sheath (300), a water-blocking layer (400) is arranged inside the lower sheath (300), an armor layer (500) is arranged in the water-blocking layer (400), a binding yarn layer (600) is arranged in the armor layer (500), and a plurality of wire cores (700) are arranged in the binding yarn layer (600); characterized in that: The connecting portion (200) is evenly provided with a plurality of connecting through grooves (201); a connecting piece (202) is embedded in the connecting portion (200); the connecting piece (202) passes through the connecting portion (200) and is integrally formed with the upper sleeve (101), the connecting portion (200) and the lower sleeve (300); The production equipment is used to integrally form the upper sheath (101), the connecting portion (200) and the lower sheath (300) of the figure-8 cable; The production equipment comprises an equipment platform (1), wherein a guide seat (2), a forming machine (3) and a traction machine (4) are sequentially arranged side by side at the upper end of the equipment platform (1); the traction machine (4) is used to pull the cable; the guide seat (2) is used to guide the cable so that the cable enters the forming machine (3) vertically; and the forming machine (3) is used to form an upper sheath (101), a connecting portion (200) and a lower sheath (300) outside the suspension wire (102) and the water-blocking layer (400); The molding machine (3) comprises a molding chassis, an 8-shaped molding hole (31) is provided through the molding chassis, a feed connector (32) is provided on the molding chassis, the feed connector (32) is connected to the 8-shaped molding hole (31), a through-slot molding hole (33) and a connecting piece through-hole (34) are provided on the side wall of the molding chassis and are connected to the 8-shaped molding hole (31), a through-slot molding piece (5) for molding a connecting through-slot (201) is installed at the through-slot molding hole (33), and a connecting piece feeding mechanism for embedding the connecting piece (202) is installed at the connecting piece through-hole (34); The through-slot forming member (5) comprises a forming seat (51) fixedly arranged on a side wall of a forming machine (3), a forming push block (54) being slidably arranged in the forming seat (51), a forming cylinder (52) being fixedly mounted on a side of the forming seat (51) away from the forming machine (3), and an output end of the forming cylinder (52) being fixedly connected to the forming push block (54); The thickness of the molding push block (54) is equal to the height of the connecting portion (200). During the injection molding process of the sheath, the molding cylinder (52) on one side drives the molding push block (54) to be inserted into the (8)-shaped molding hole (31), and the end of the molding push block (54) is low-contacted with the molding push block (54) on the other side, so as to achieve the middle partition of the (8)-shaped molding hole (31), thereby forming a connecting through groove (201) during the injection molding process of the sheath. After the injection molding is completed and cooled, the molding cylinder (52) contracts and drives the molding push block (54) to slide into the through groove molding hole (33). The cable after the sheath injection molding is completed moves outward under the action of the traction machine (4), thereby completing the molding process of the connecting through groove (201).

2. The 8-shaped cable production equipment according to claim 1 is characterized in that: Limiting strips (103) are distributed in a ring array around the outer circumference of the suspension wire (102).

3. The 8-shaped cable production equipment according to claim 1 is characterized in that: A reinforcing core (800) is arranged at the inner center of the binding yarn layer (600), and a plurality of wire core grooves (801) distributed in a ring array are arranged at the outer periphery of the reinforcing core (800), and the wire core (700) is clamped at the wire core grooves (801).

4. The 8-shaped cable production equipment according to claim 1 is characterized in that: The connecting piece feeding mechanism comprises a feeding component (6) fixedly mounted on a side wall of the molding machine (3), the feeding component (6) being used to feed the connecting piece (202) into the 8-shaped molding hole (31), a clamping component (7) being mounted in the feeding component (6), the clamping component (7) being used to fix and clamp the connecting piece (202).

5. The 8-shaped cable production equipment according to claim 4, characterized in that: A loading component (8) is fixedly mounted on the upper end of the feeding component (6), and the loading component (8) is used to sequentially feed the connecting pieces (202) into the feeding component (6).

6. The 8-shaped cable production equipment according to claim 4, characterized in that: The feeding component (6) comprises a feeding seat (61), wherein a mounting cavity (62) and a material receiving cavity (68) are arranged in the feeding seat (61), a feeding support (66) is slidably arranged in the material receiving cavity (68), and a feeding cylinder (64) for pushing the feeding support (66) to slide is fixedly installed in the mounting cavity (62).

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