Cable extrusion molding device
By installing two sets of molds and cooling chambers at the end of the cable extruder, combined with a limiting mechanism, two cables can be extruded and initially cooled simultaneously, solving the problems of low efficiency, high cost, and space congestion of traditional equipment, and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HANXING CABLE CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional cable extrusion molding equipment suffers from problems such as low production efficiency due to its single-mold design, frequent equipment failures, large equipment footprint, high costs, and crowded production space and safety hazards due to the layout of multiple sets of equipment.
Two sets of molds are installed at the end of the extruder. Each set of molds includes a main body, a first splicing pipe and a second splicing pipe, a cooling chamber and a limiting mechanism, so that two cables can be extruded at the same time. The insulation layer or sheath is initially cooled by the coolant, and the cable movement is stabilized by the limiting mechanism.
It improves cable extrusion efficiency, reduces equipment failure rate, reduces equipment space occupation, lowers costs, and improves production safety and space utilization.
Smart Images
Figure CN224110052U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to cable production technical field, especially relate to a cable extrusion forming device. BACKGROUND
[0002] In the production process of cable, extrusion forming is one of the key processes, and the purpose is to cover a layer of plastic insulation layer or sheath on the cable core wire to protect the cable core wire and improve the electrical performance and mechanical performance of the cable. With the rapid development of power, communication and other industries, the market demand for cable is increasing, and higher requirements are put forward for cable production efficiency and cost control.
[0003] However, the traditional cable extrusion forming equipment currently exposes many thorny problems in the actual working process. From the perspective of processing capacity, the end of the extrusion equipment is generally only configured with a set of mold, and this design limitation directly leads to the completion of the insulation layer or sheath extrusion processing of only one cable at a time. Taking the common power cable production line as an example, during the peak production period, the market demand is growing in an explosive manner, and the order quantity is rising sharply. At this time, the single-mold equipment is not up to the task due to its inherent processing speed limitation, and it is difficult to complete the delivery demand on time. In order to reluctantly complete the production task, the running time of the equipment has to be extended, and the equipment runs for a long time under high load, which not only greatly increases the energy consumption cost, but also keeps the power consumption per hour at a high level compared with normal working time. In addition, the continuous operation may cause excessive wear of the key components of the equipment, leading to faults such as screw jamming and motor overheating. Once a fault occurs, a large amount of time is needed for equipment maintenance, further disrupting the production plan, seriously affecting the production progress, and greatly limiting the improvement of production efficiency.
[0004] In terms of equipment structure and space occupation, extrusion equipment and its supporting equipment, such as cable core placement and feeding devices, cooling devices for cooling the formed cables, and cable pulling devices, have complex overall structural designs and are bulky. In actual production workshops, these devices occupy a large amount of production space, making the already limited workshop space even more cramped. If one attempts to improve production efficiency by installing multiple sets of extrusion equipment and its supporting equipment, a large investment in equipment purchase is required first. The purchase cost of a complete set of extrusion equipment and its supporting facilities is high, and purchasing multiple sets of equipment will be a huge expense. At the same time, in order to accommodate these new equipment, it is necessary to expand the factory area, which involves a series of high costs such as land acquisition and factory construction, which will undoubtedly significantly increase the production costs of factory construction and equipment maintenance. In addition, too much equipment layout will make the production workshop space extremely crowded, and the operating space between equipment will be severely compressed, which is not conducive to workers' daily operation and maintenance of equipment. Workers operating equipment in a narrow space is not only inefficient and poses safety hazards, but also greatly reduces the utilization efficiency of production space. Summary of the Invention
[0005] The purpose of this invention is to provide a cable extrusion molding device to solve the related problems mentioned in the background art.
[0006] To achieve the above-mentioned technical objectives, the solution adopted by this utility model is as follows:
[0007] A cable extrusion molding apparatus includes an extruder, with at least two sets of molds sequentially connected at the end of the extruder; each set of molds includes a main body, a first splicing pipe and a second splicing pipe, and two connecting discs symmetrically and connectedly arranged on the side wall of the main body. The ends of the first splicing pipe and the second splicing pipe that are close to each other are inserted into the main body. The outer diameter of the first splicing pipe is equal to the inner diameter of the main body, and the outer diameter of the second splicing pipe is smaller than the inner diameter of the main body, and a discharge gap is formed between the first splicing pipe and the second splicing pipe.
[0008] Furthermore, screws are fixedly installed on both ends of the main body, and flanges are fixedly installed on both the first and second splicing pipes, with the flanges fitted onto the screws.
[0009] Furthermore, the first splicing pipe includes a pipe body and a ring plate. Flanges are provided at the ends of the ring plate and the pipe body that are close to each other. The ring plate is installed inside the main body.
[0010] Furthermore, the inner surface of the ring plate is set as a slope, the inner diameter of the slope is equal to the inner diameter of the pipe body, and the inner diameter of the pipe body is greater than the inner diameter of the second splicing pipe.
[0011] Further, the side wall of the pipe body is provided with a cooling cavity, a partition plate is fixedly arranged on the inner side of the cooling cavity, and the partition plate is arranged along the length direction of the pipe body; two flow pipes are arranged in communication on the cooling cavity, and the two flow pipes are arranged on the two sides of the partition plate.
[0012] Further, a plugging head is arranged, the plugging head is arranged at the connecting disc far away from the extruding machine, the plugging head comprises the connecting disc and a plugging column, the connecting disc is connected with the connecting disc, and the curved surface at the end of the plugging column is located on the same plane as the inner side wall of the main body.
[0013] Further, a limiting mechanism is arranged at the end of the mold, the limiting mechanism comprises an annular plate and two sets of limiting devices arranged symmetrically, the annular plate is arranged on the main body, and the two sets of limiting devices are adjustably arranged on the annular plate.
[0014] Further, the limiting device comprises a frame body, a connecting plate and two wheel bodies, the connecting plate is sleeved at the end of the frame body and is arranged on the annular plate, the two wheel bodies are arranged at the end of the frame body away from the connecting plate, and the two wheel bodies are arranged away from the center of the cable.
[0015] Further, the end of the connecting plate is fixedly provided with a sleeve, the ear plate is fixedly arranged on the side of the sleeve, the vertical section of the frame body penetrates through the sleeve, the adjusting screw is connected and penetrates through the vertical section of the frame body through a bearing, and the adjusting screw is threadedly arranged in the ear plate.
[0016] Further, the end of the connecting plate away from the sleeve is provided with a sleeve groove, the annular plate penetrates through the sleeve groove, and the bolt penetrating through the sleeve groove is threadedly inserted into a connecting groove of the annular plate.
[0017] The main beneficial effects generated by the above technical scheme are as follows:
[0018] 1. The utility model discloses a mold for extruding cable, which comprises a main body, a first splicing pipe and a second splicing pipe.
[0019] 2. The mold comprises a main body, a first splicing pipe and a second splicing pipe.
[0020] 3. The mold comprises a main body, a first splicing pipe and a second splicing pipe. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is the overall structure schematic view of the utility model;
[0022] Figure 2 is the structure schematic view of the utility model die and plug head;
[0023] Figure 3 is the structure schematic view of the utility model die;
[0024] Figure 4 is the structure schematic view of the utility model main body;
[0025] Figure 5 is the structure schematic view of the utility model first splicing pipe, second splicing pipe;
[0026] Figure 6 is the structure schematic view of the utility model first splicing pipe;
[0027] Figure 7 is the structure schematic view of the utility model plug head;
[0028] Figure 8 is the structure schematic view of the utility model die and limiting mechanism;
[0029] Figure 9 is the structure schematic view of the utility model limiting mechanism;
[0030] Figure 10 is the structure schematic view of the utility model limiting device.
[0031] In the drawing: 1, extruder; 2, die; 21, main body; 211, screw; 212, connecting disc; 22, first splicing pipe; 221, pipe body; 222, flow pipe; 223, partition; 224, flange plate; 225, cooling cavity; 226, ring plate; 227, slope; 23, second splicing pipe; 24, discharge gap; 3, plug head; 31, connecting disc; 32, plug column; 4, limiting mechanism; 41, annular plate; 411, connecting groove; 42, limiting device; 421, connecting plate; 422, sleeve groove; 423, frame body; 424, wheel body; 425, sleeve pipe; 426, adjusting stud; 427, ear plate. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; in the description of the utility model, it should be understood that if the terms "upper", "lower", "inner", "outer", "horizontal", "vertical" and the like are used to indicate the position or location relationship, it is based on the position or location relationship shown in the drawings, and it is only for the convenience of describing the technical solutions of the utility model and simplifying the description, and therefore it cannot be understood as a limitation on the utility model.
[0033] Embodiment one:
[0034] As shown in Figure 1 , Figure 2 , in order to be able to simultaneously perform plastic insulation layer or sheath extrusion treatment on at least two cables, the embodiment provides a new cable extrusion molding device, which comprises an extruder 1 and at least two sets of molds 2 connected in communication, so that the molten plastic material can be input into the two sets of molds 2 under the condition that the extruder 1 is working, and then the molten plastic material is coated on the cables arranged through the molds 2, so as to realize the plastic insulation layer or sheath extrusion treatment.
[0035] The above-mentioned extruder 1 has been disclosed for use, which comprises an extrusion system, a transmission system, a heating and cooling system, a feeding system, a control system and the like.
[0036] The extrusion system mainly consists of a screw and a barrel. The screw is the core component of the extruder, which pushes the plastic material forward in the barrel by rotating and transports, compacts, melts and homogenizes the material. The barrel is a container that contains the plastic material, which provides space for the heating and plasticizing of the material, and cooperates with the screw to extrude the material under certain pressure and temperature.
[0037] The transmission system is used to drive the screw to rotate, which generally consists of a motor, a speed reducer, a shaft coupling and the like. The motor provides power, the speed reducer reduces the high speed of the motor to the speed suitable for the work of the screw and increases the torque, and the shaft coupling is used to connect the motor, the speed reducer and the screw, so as to ensure the effective transmission of power.
[0038] The heating device of the heating and cooling system usually adopts an electric heating ring or a heating rod, which is installed outside the barrel to heat the plastic material in the barrel to the required melting temperature. The cooling system generally consists of a cooling fan or a cooling water pipe, which is used to control the temperature of the barrel and the screw to prevent the degradation of the plastic or the damage of the equipment caused by the high temperature, and also helps to improve the production efficiency and product quality.
[0039] The feeding system mainly includes a hopper and a feeding device. The hopper is used to store plastic raw materials, and the feeding device is responsible for uniformly adding the raw materials in the hopper into the barrel. Common feeding devices include gravity feeders, forced feeders, etc., and appropriate feeding methods can be selected according to different plastic raw materials and production processes.
[0040] The control system is composed of various electrical components and control instruments, used to control various working parameters of the extruder, such as temperature, pressure, speed, etc. The operator can set and adjust these parameters through the control system to ensure the stable operation of the extruder and the consistency of product quality. The control system of modern extruders usually has high automation degree, simple operation, fault diagnosis and alarm functions, which improves the reliability and production efficiency of the production process.
[0041] The above-mentioned extruder 1 cooperates with existing wire laying devices, cooling devices, traction devices, wire winding devices, wire winding devices, etc. to form a complete cable extrusion production system.
[0042] As shown in Figure 3 , Figure 4 , Figure 7 , in order to be able to install at least two sets of molds 2 in communication at the end of the extruder 1, each set of molds 2 includes a main body 21, and two connecting plates 212 are symmetrically and in communication on the side wall of the main body 21, that is, the two connecting plates 212 are located on the same straight line, so that the main body 21 can be installed on the extruder 1 through the connecting plates 212, and it is also convenient for the adjacent molds 2 to be connected in communication. After installing a corresponding number of molds 2, a plug head 3 can be provided on the mold 2 away from the extruder 1, the plug head 3 includes a connecting plate 31 and a plug column 32, the connecting plate 31 is connected with the connecting plate 212, and the curved surface at the end of the plug column 32 is located on the same plane as the inner side wall of the main body 21, that is, the passage of the material flow can be cut off under the action of the plug head 3, providing convenience for the simultaneous extrusion processing of the insulation layer or the sheath of at least two cables.
[0043] As shown in Figure 3 , Figure 5 , in order to facilitate the flow of materials and coat the materials on the cable, each set of molds 2 further includes a first splicing pipe 22 and a second splicing pipe 23, one end of each of the first splicing pipe 22 and the second splicing pipe 23 is inserted into the main body 21, the outer diameter of the part of the first splicing pipe 22 extending into the main body 21 is equal to the inner diameter of the main body 21, and the outer diameter of the second splicing pipe 23 is smaller than the inner diameter of the main body 21. Therefore, a temporary storage space for molten materials is formed between the main body 21, the first splicing pipe 22 and the second splicing pipe 23. In addition, a material discharge gap 24 is formed between the first splicing pipe 22 and the second splicing pipe 23. When the pressure in the temporary storage space increases, the molten material is output from the material discharge gap 24 and coated on the cable to form an insulation layer or a sheath.
[0044] As shown in Figure 6As shown, in order to enable the movement of bare cables and cables covered with insulation or sheaths, the first splicing pipe 22 includes a pipe body 221 and a ring plate 226. The outer diameter of the ring plate 226 is equal to the inner diameter of the main body 21, and the inner side of the ring plate 226 is set as a slope 227. The smaller inner diameter of the slope 227 is equal to the inner diameter of the pipe body 221, and the inner diameter of the pipe body 221 is larger than the inner diameter of the second splicing pipe 23, thus forming a channel for cable movement.
[0045] like Figure 4 , Figure 5 , Figure 6 As shown, to stably install the first splicing pipe 22 and the second splicing pipe 23 onto the main body 21, screws 211 are fixedly installed on both ends of the main body 21. A flange 224 is fixedly installed on the second splicing pipe 23. Flanges 224 are also installed at the ends of the ring plate 226 and the pipe body 221 that are close to each other, and the flanges 224 are fitted onto the screws 211. The first splicing pipe 22 and the second splicing pipe 23 described above can be detachably installed on the side of the main body 21, and can also be easily replaced according to different sizes of cables, improving the practicality of the device.
[0046] Example 2:
[0047] like Figure 6 As shown, based on Embodiment 1, a cooling chamber 225 can be provided on the side wall of the tube body 221, and a partition 223 is fixedly provided on the inner side of the cooling chamber 225. The partition 223 is arranged along the length direction of the tube body 221, and two flow pipes 222 are connected to each other on the cooling chamber 225. The two flow pipes 222 are distributed on both sides of the partition 223. In addition, the flow pipes 222 can be connected to coolant and a liquid pump, and the coolant is pumped to the cooling chamber 225 under the action of the liquid pump. Then the coolant is output from the other flow pipe 222, reducing the temperature of the tube body 221 and realizing the preliminary cooling treatment of the insulation layer or sheath.
[0048] Example 3:
[0049] like Figure 8 , Figure 9 As shown in Example 1 or 2, when at least two cables are extruded, the cables will inevitably bend. In order to control the cables to enter and exit the mold and water cooling system more stably, a limiting mechanism 4 can be set at the ends of the mold 2 and the water cooling system that are far apart from each other. The two sets of limiting mechanisms 4 are stably installed at the ends of the mold 2 and the water cooling system, respectively. Thus, the limiting mechanism 4 restricts the reverse movement of the cables and reduces the impact of cable bending on the cable extrusion process.
[0050] like Figure 10As shown, specifically, the limiting mechanism 4 comprises a ring-shaped plate 41 and two sets of symmetrically arranged limiting devices 42. The ring-shaped plate 41 is installed at the end of the main body 21 or the water cooling system. The limiting device 42 comprises a frame body 423, a connecting plate 421 and two wheel bodies 424. The connecting plate 421 is fixedly provided with a sleeve 425 at one end, and is provided with a sleeve groove 422 at the other end, the ring-shaped plate 41 is arranged through the sleeve groove 422, and the bolt arranged through the sleeve groove 422 is screwed into a certain connecting groove 411 of the ring-shaped plate 41, so that the position of the connecting plate 421 relative to the ring-shaped plate 41 can be adjusted according to requirements in the case of stable installation of the connecting plate 421. The vertical section of the frame body 423 is arranged through the sleeve 425, and an adjusting screw column 426 is connected through a bearing at the side of the vertical section of the frame body 423, the adjusting screw column 426 is screwed through an ear plate 427, and the ear plate 427 is fixedly installed at the side of the sleeve 425. The position of the frame body 423 can be adjusted according to the size of the cable by rotating the adjusting screw column 426 to control the movement of the frame body 423 relative to the sleeve 425. The two wheel bodies 424 are installed at the end of the frame body 423 away from the connecting plate 421, and are arranged away from the center of the cable, so that the position of the cable can be limited under the action of the wheel bodies 424, and the resistance of the cable movement is reduced.
[0051] It should be noted that in the scheme of the present application, the "connection" not specifically limited can be fixed connection, can also be detachable connection or integral connection; for those skilled in the art, corresponding adjustment and transformation can be made according to specific application situation.
[0052] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications and replacements can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A cable extrusion molding apparatus characterized by: The utility model provides an extruding machine (1), at least two sets of moulds (2) are successively communicated and installed at the end of extruding machine (1) in sequence, each set of mould (2) includes main body (21), first splicing pipe (22) and second splicing pipe (23), two connecting discs (212) are symmetrically and communicatedly arranged on the side wall of main body (21), the end of first splicing pipe (22) and second splicing pipe (23) is inserted into main body (21), the outer diameter of first splicing pipe (22) is equal to the inner diameter of main body (21), the outer diameter of second splicing pipe (23) is less than the inner diameter of main body (21), and the discharge gap (24) is formed between first splicing pipe (22) and second splicing pipe (23).
2. A cable extrusion device according to claim 1, characterised in that: The end surface of main body (21) is fixedly provided with screw rod (211), and the flange plate (224) is fixedly arranged on first splicing pipe (22) and second splicing pipe (23), and the flange plate (224) is sleeved on screw rod (211).
3. A cable extrusion device as defined in claim 1, wherein: First splicing pipe (22) includes pipe body (221) and ring plate (226), the end of ring plate (226) and pipe body (221) is provided with flange plate (224), and ring plate (226) is installed in main body (21).
4. A cable extrusion device as claimed in claim 3, wherein: The inner side of ring plate (226) is provided with slope (227), the smaller inner diameter of slope (227) is equal to the inner diameter of pipe body (221), and the inner diameter of pipe body (221) is greater than the inner diameter of second splicing pipe (23).
5. A cable extrusion device as claimed in claim 4, wherein: Cooling cavity (225) is arranged on the side wall of pipe body (221), and baffle (223) is fixedly arranged on the inner side of cooling cavity (225), and baffle (223) is arranged along the length direction of pipe body (221), two flow pipes (222) are communicatedly arranged on cooling cavity (225), and two flow pipes (222) are arranged on the two sides of baffle (223).
6. A cable extrusion device as defined in claim 1, wherein: Plug head (3) is further arranged, plug head (3) is installed at the connecting disc (212) far away from extruding machine (1), plug head (3) includes connecting disc (31) and plug column (32), connecting disc (31) is connected with connecting disc (212), and the curved surface of end of plug column (32) is located on the same plane with the inner side wall of main body (21).
7. A cable extrusion device as defined in claim 1, wherein: Limiting mechanism (4) is arranged at the end of mould (2), limiting mechanism (4) includes annular plate (41) and two sets of symmetrically arranged limiting devices (42), annular plate (41) is installed on main body (21), and two sets of limiting devices (42) are adjustably installed on annular plate (41).
8. A cable extrusion device according to claim 7, wherein: Limiting device (42) includes frame body (423), connecting plate (421) and two wheel bodies (424), connecting plate (421) is sleeved on the end of frame body (423), connecting plate (421) is installed on annular plate (41), two wheel bodies (424) are installed on the end of frame body (423) away from connecting plate (421), and two wheel bodies (424) are arranged away from the center of cable.
9. A cable extrusion device as claimed in claim 8, wherein: The end of the connecting plate (421) is fixedly provided with a sleeve (425), the side of the sleeve (425) is fixedly provided with an ear plate (427), the vertical section of the frame body (423) is provided through the sleeve (425), and the side of the vertical section of the frame body (423) is provided through with an adjusting stud (426) by bearing connection, and the adjusting stud (426) is provided through the ear plate (427) by screwing.
10. A cable extrusion device as claimed in claim 8, wherein: The end of the connecting plate (421) away from the sleeve (425) is provided with a sleeve groove (422), the annular plate (41) is provided through the sleeve groove (422), and the bolt provided through the sleeve groove (422) is screwed into a certain connecting groove (411) of the annular plate (41).