Cable conductor preheating device
By designing a cable conductor preheating device, and using a clamping and wire device to guide the cable conductor through the spiral heating tube, the problems of inconvenient cable conductor insertion and damage to the spiral heating tube are solved, thus achieving a stable and low-cost cable heating process.
Patent Information
- Application Number
- CN202520488954.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In the prior art, the cable conductor is prone to slipping out through the gap when passing through the spiral heating tube, which can damage the spiral heating tube and make the insertion process inconvenient.
A cable conductor preheating device was designed, including an electric heater, a spiral heating tube, a wire clamping device, and a wire guide device. The cable conductor is positioned by the wire clamping device, and the cable conductor is guided through the spiral heating tube by the wire guide device to avoid direct contact. The position of the wire guide tube is adjusted by a servo motor to achieve stable passage of the cable conductor.
This method enables contactless passage between the cable conductor and the spiral heating tube, avoiding damage to the spiral heating tube, simplifying the insertion process, and reducing costs.
Smart Images
Figure CN223956369U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a cable conductor preheating device. BACKGROUND
[0002] In the cable manufacturing process, the preheating of the conductor is a key step. The main purpose of the conductor preheating is to remove the moisture on the surface of the conductor and to increase the temperature of the conductor, so that the insulation material can better adhere to the surface of the conductor in the subsequent insulation layer extrusion process, thereby improving the electrical performance and mechanical performance of the cable.
[0003] In the prior art, the mainstream is to use a spiral electric heating tube to heat the cable conductor. The cable conductor passes through the spiral electric heating tube before entering the extruder to complete the heating work.
[0004] However, the spiral electric heating tube is coiled in a spiral shape, and the cable conductor is relatively soft. In order to ensure sufficient heating efficiency, the length of the spiral electric heating tube is relatively long, which makes the cable conductor easy to pass out from the gap of the spiral electric heating tube when passing through, causing great trouble to the insertion work of the cable conductor, and also causing damage to the spiral electric heating tube.
[0005] Based on the above problems, we designed a cable conductor preheating device that can realize the guidance of the cable conductor and avoid contact between the cable conductor and the spiral electric heating tube. CONTENT OF THE UTILITY MODEL
[0006] The technical problem to be solved by the utility model is to provide a cable conductor preheating device that can realize the guidance of the cable conductor and avoid contact between the cable conductor and the spiral electric heating tube.
[0007] To solve the above problems, the utility model adopts the following technical scheme:
[0008] A cable conductor preheating device, comprising an electric heater and a spiral electric heating tube matched with the electric heater, further comprising a machine body structure, the spiral electric heating tube is installed in the machine body structure, a wire clamping device is arranged on the left side of the machine body structure, and a wire guiding device is installed on the right side of the machine body structure.
[0009] Preferably, the machine body structure comprises a shell, racks are welded on both sides of the shell, a cavity penetrating through both ends is formed in the shell, a heat insulation tile is installed in the cavity, and the spiral electric heating tube is fixedly installed on the inner side of the heat insulation tile; the wire guiding device is installed on the right side of the shell and is inserted along the spiral electric heating tube, and the wire clamping device is installed on the left side of the shell.
[0010] Preferably, two of the wire clamping devices are symmetrically arranged on the upper and lower sides of the wire clamping device, the wire clamping device comprises a wheel seat, a wire clamping wheel and a support, a fixed shaft is arranged between the wheel seat and the wire clamping wheel, the fixed shaft is fixed to the wheel seat, a bearing is arranged between the fixed shaft and the wire clamping wheel, the two supports are respectively fixed to the upper and lower ends of the shell, guide rods are fixed to the front and rear sides of the wheel seat, the guide rods vertically pass through the supports and are matched with limiting caps, baffles are arranged on the guide rods, springs are arranged on the guide rods and act between the baffles and the supports, wheel grooves are arranged on the outer walls of the wire clamping wheels, and the distance between the two wire clamping wheels is smaller than the diameter of the cable conductor when the springs are in a relaxed state.
[0011] Preferably, threaded rods are arranged at the ends of the guide rods, and the limiting caps are threadedly matched with the threaded rods.
[0012] Preferably, the wire guiding device comprises a servo motor, a first guide rod, a screw rod and a wire tube, the wire tube is inserted into the spiral electric heating pipe and is spaced apart from the spiral electric heating pipe, upper and lower first supports are welded to the outer wall of the wire tube and are away from the spiral electric heating pipe, a threaded sleeve is fixed to the upper first support, a linear bearing is arranged on the lower first support, the servo motor is fixed to the top of the shell, the screw rod is fixed to the output end of the servo motor, the screw rod is matched with the threaded sleeve, a bearing seat is arranged between the screw rod and the shell, a first bearing is arranged between the screw rod and the bearing seat, a second support is arranged between the first guide rod and the shell, and the first guide rod passes through the linear bearing.
[0013] Preferably, a heat insulation sleeve is wrapped outside the wire tube.
[0014] The device has the advantages that:
[0015] The wire clamping device is arranged on one side of the machine body structure, and the wire clamping device supports and positions the cable conductor.
[0016] The device has the advantages of simple structure, low cost and wide application. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0018] Figure 1 The structure of the present application is shown in the figure.
[0019] Figure 2 The Figure 1 The local sectional view at A;
[0020] Figure 3 The schematic diagram of pulling out the wire device;
[0021] Figure 4 The installation schematic diagram of the wire clamping device;
[0022] Figure 5 The side view of the wire clamping device;
[0023] Figure 6 The semi-sectional view of the limiting cap. DETAILED DESCRIPTION
[0024] All features disclosed in this specification, or all steps of any method or process disclosed in this specification, can be combined in any combination, except where it is explicitly stated that a combination is not to be made.
[0025] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or similar feature, or any feature with the same function. That is, each feature is only an example of a series of equivalent or similar features, unless stated otherwise.
[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0027] In addition, in the description of the present application, "a plurality of" means at least two, for example, two, three, etc., unless otherwise specifically limited.
[0028] In the utility model, unless another definite provision and limitation, the terms "arrange", "sleeve joint", "connect", "penetrate", "plug in" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or become an integral whole, can be mechanical connection, also can be electrical connection, can be direct connection, also can pass through the indirect connection of intermediate medium, can be the communication or mutual action relation of two elements inside, unless another definite limitation. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0029] Referring to Figure 1 and Figure 2 As shown in a kind of cable conductor preheating device, including electric heater (not shown), and cooperate with the spiral electric heating tube 2 of electric heater, still include machine body structure 3, the spiral electric heating tube 2 is installed in the machine body structure 3, wire clamp device 4 is provided at the left side of the machine body structure 3, and wire guide device 5 is installed at the right side of the machine body structure 3.
[0030] In the above technical solution, when passing through cable conductor, wire guide device 5 is inserted along machine body structure 3 first, then cable conductor is passed from wire clamp device 4, and then passed through wire guide device 5, and cable conductor after passing through wire guide device 5 is guided into extruder.
[0031] In the above technical solution, cable conductor can be guided to pass through by wire guide device 5, to avoid interference between cable conductor and spiral electric heating tube 2 when passing through.
[0032] Referring to Figure 1 , Figure 2 and Figure 3 As shown, the machine body structure 3 includes shell 31, rack 32 is welded on both sides of shell 31, through cavity is formed in shell 31, heat insulation tile 33 is installed in the cavity, and spiral electric heating tube 2 is fixedly installed on the inner side of heat insulation tile 33;Wire guide device 5 is installed on the right side of shell 31 and is inserted along spiral electric heating tube 2, and wire clamp device 4 is installed on the left side of shell 31.
[0033] In the above technical solution, heat insulation tile 33 needs to maintain a certain gap with spiral electric heating tube 2 during installation.
[0034] Heat insulation tile 33 can reduce heat transfer, to ensure that the outside of shell 31 is in normal working condition.
[0035] Referring to Figure 4 and Figure 5As shown, the wire clamping device 4 is symmetrically arranged on the upper and lower part of the device, which comprises a wheel seat 41, a wire clamping wheel 42 and a support 43. The fixed shaft 44 is arranged between the wheel seat 41 and the wire clamping wheel 42, and the fixed shaft 44 is fixed to the wheel seat 41. The bearing is arranged between the fixed shaft 44 and the wire clamping wheel 42. The two supports 43 are respectively fixed to the upper and lower end of the shell 31. The guide rod 45 is fixed to the front and rear side of the wheel seat 41. The guide rod 45 vertically penetrates through the support 43 and is matched with the limiting cap 46. The baffle 47 is arranged on the guide rod 45. The spring 48 is arranged on the guide rod 45 and acts between the baffle 47 and the support 43. The wheel groove 442 is arranged on the outer wall of the wire clamping wheel 42. When the spring 48 is in the relaxed state, the distance between the two wire clamping wheels 42 is smaller than the diameter of the cable conductor.
[0036] In the above technical solution, the cable conductor passes through the two wire clamping wheels 42. At this time, the cable conductor is positioned in the wheel groove 442, which avoids the deviation of the cable and ensures the stable passing.
[0037] Referring to Figure 4 and Figure 6 As shown, the threaded rod 455 is arranged at the end of the guide rod 45, and the limiting cap 46 is threadedly matched with the threaded rod 455.
[0038] In the above technical solution, the position of the limiting cap 46 can adjust the compression range of the spring 48, and the initial position of the wire clamping wheel 42 can be adjusted.
[0039] Referring to Figure 3 As shown, the wire guiding device 5 comprises a servo motor 51, a first guide rod 52, a screw rod 53 and a wire tube 54. The wire tube 54 penetrates into the spiral electric heating tube 2 and maintains a distance with the spiral electric heating tube 2. The upper and lower first supports 55 are welded on the outer wall of the wire tube 54 and away from the spiral electric heating tube 2. The threaded sleeve 56 is fixed to the upper first support 55, and the linear bearing 57 is installed on the lower first support 55. The servo motor 51 is fixed to the top of the shell 31. The screw rod 53 is fixed to the output end of the servo motor 51. The screw rod 53 is matched with the threaded sleeve 56. The bearing seat 58 is arranged between the screw rod 53 and the shell 31. The first bearing (not shown) is arranged between the screw rod 53 and the bearing seat 58. The second support 552 is arranged between the first guide rod 52 and the shell 31. The first guide rod 52 penetrates through the linear bearing 57.
[0040] In the above technical solution, the screw rod is driven to rotate by the servo motor, so as to adjust the position of the wire tube 54.
[0041] When it is necessary to pass through the new cable conductor, the wire tube 54 is inserted into the spiral heating tube by the servo motor, then the cable conductor can be passed through, and the end of the cable conductor is pulled into the extruder.
[0042] After the above operation is completed, the wire tube 54 is moved out of the spiral heating tube by the servo motor, so that the heat of the spiral heating tube can be used for cable heating.
[0043] During the above operation, the position of the shell is adjusted, so that the wire tube 54 can be extended to be docked with the cable inlet position of the extruder after being moved out, at this time, the wire tube 54 can protect the heated cable conductor, avoid dust adhesion, and also play a certain heat preservation role.
[0044] Referring to Figure 3 As shown in the drawings, the wire tube 54 is wrapped outside by a heat insulation sleeve 544.
[0045] The heat insulation sleeve is arranged to play a heat insulation protection role on the outside of the wire tube 54.
[0046] The heat insulation sleeve 544 maintains a gap with the spiral heating tube 2 after being inserted with the wire tube 54.
[0047] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of the features, steps, operations, devices, components and / or combinations thereof.
[0048] Unless otherwise specifically stated, the relative arrangements of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The technology, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the technology, methods and devices should be considered as part of the authorized specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0049] For purposes of the description hereinafter, spatial
[0050] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.
[0051] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.
[0052] The preferred embodiments of the present application have been described above with the aid of drawing figures, and are not limited to those embodiments; rather, they will include any changes that do not constitute departures from the spirit and scope of the present application.
Claims
1. A cable conductor preheating device comprising an electric heater and a coiled electric heating tube fitted to the electric heater, characterized in that: The body structure is provided with a wire clamping device on the left side and a wire guiding device on the right side.
2. The cable conductor preheating arrangement of claim 1, characterized by: The body structure comprises a shell, racks are welded to the two sides of the shell, a cavity is formed in the shell, a heat insulation tile is installed in the cavity, and the helical electric heating tube is fixedly installed on the inner side of the heat insulation tile; the wire guiding device is installed on the right side of the shell and is inserted along the helical electric heating tube, and the wire clamping device is installed on the left side of the shell.
3. The cable conductor preheating arrangement of claim 2, characterized in that: The wire clamping device is symmetrically provided on the upper and lower sides, and comprises a wheel seat, a wire clamping wheel and a support, a fixing shaft is matched between the wheel seat and the wire clamping wheel, the fixing shaft is fixed to the wheel seat, a bearing is matched between the fixing shaft and the wire clamping wheel, the two supports are respectively fixed to the upper and lower ends of the shell, guide rods are fixed to the front and rear sides of the wheel seat, the guide rods vertically pass through the supports and are matched with limiting caps, baffles are processed on the guide rods, springs are sleeved on the guide rods, the springs act between the baffles and the supports, wheel grooves are processed on the outer walls of the wire clamping wheels, and the distance between the two wire clamping wheels is smaller than the diameter of the cable conductor when the springs are in a relaxed state.
4. The cable conductor preheating arrangement of claim 3, characterized in that: Threaded rods are processed at the ends of the guide rods, and the limiting caps are threadedly matched with the threaded rods.
5. The cable conductor preheating arrangement of claim 2, wherein: The wire guiding device comprises a servo motor, a first guide rod, a screw rod and a wire tube, the wire tube is inserted into the helical electric heating tube and maintains a distance with the helical electric heating tube, upper and lower first supports are welded to the outer wall of the wire tube and away from the helical electric heating tube, a threaded sleeve is fixed to the upper first support, a linear bearing is installed at the lower first support, the servo motor is fixed to the top of the shell, the screw rod is fixed to the output end of the servo motor, the screw rod is matched with the threaded sleeve, a bearing seat is matched between the screw rod and the shell, a first bearing is matched between the screw rod and the bearing seat, a second support is matched between the first guide rod and the shell, and the first guide rod passes through the linear bearing.
6. The cable conductor preheating arrangement of claim 5, characterized by: A heat insulation sleeve is wrapped outside the wire tube.