Softening and heating device for flat wire softening furnace of enamelling machine

Abstract

The utility model belongs to the technical field of enameled wire production lines, and discloses a softening heating device for a flat wire softening furnace of an enamelling machine. A bare wire softening pipe; the wire inlet mechanism is assembled at one end of the bare wire softening pipe; the wire outlet mechanism is assembled at one end of the bare wire softening pipe; the heating guide mechanism is assembled on the flat wire softening furnace; and the flat wire outlet mechanism is assembled on the flat wire softening furnace. According to the utility model, wire incoming and outgoing are facilitated, the device is novel, simple and convenient to use, low-voltage and large-current heating is adopted, heat is directly conducted to the bare wire softening pipe through the aluminum silicate insulation heat conduction pipe, the softening efficiency of the bare wire of the rectangular enameled wire is greatly improved, and the service life is prolonged. And two-point temperature control is realized by adopting the upper-layer softening pipe electric conduction machine and the lower-layer softening pipe electric conduction machine, so that the furnace temperature fluctuation is small, and the softening performance and quality of the bare rectangular enameled wire are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of enameled wire production lines, in particular to a softening heating device for an enameling machine flat wire softening furnace. Background Art

[0002] New energy vehicle drive motors use extra-thick film rectangular enameled wires, which effectively reduce winding resistance and copper loss, and have higher efficiency, higher power density, better heat dissipation, better NVH performance, (noise) smaller size and weight. It is more in line with the lightweight and integrated development trend of new energy vehicles, and the demand for new energy vehicles has shown explosive growth.

[0003] Our company applied for a utility model patent on July 15, 2015, named a rectangular enameled bare wire softening device, which includes an enameled bare wire softening device, including a furnace frame, a bare wire softening tube installed in the furnace frame, an aluminum silicate insulated heat-conducting tube is also arranged in the furnace frame and on the periphery of the bare wire softening tube, a softening tube conductive heating tube is arranged in the furnace frame and on the periphery of the aluminum silicate insulated heat-conducting tube, the upper and lower ends of the softening tube conductive heating tube and the aluminum silicate insulated heat-conducting tube are respectively connected to the two ends of the furnace frame, and the upper softening tube conductor and the lower softening tube conductor are respectively connected to the softening tube conductive heating tube through conductive copper bars.

[0004] However, during the actual production process, the company's technicians found several problems:

[0005] 1. The bare wire softening device in front does not have a structure that is convenient for wire entry. During the production process, the bare wire will be entangled with other parts, affecting the use effect and the quality of the bare wire.

[0006] 2. There will be a section of suspension between the bare wire softening tube and the outlet wire, where the bare wire will sag, which will have a certain impact on the straight shape of the bare wire after heating. In addition, the heat dissipation here is fast, which is not conducive to the next step of processing. Utility Model Content

[0007] In order to solve the problems in the related art, the utility model provides a softening heating device for a flat wire softening furnace of an enameling machine, which solves the problems mentioned in the background technology.

[0008] The technical solution of this application is as follows:

[0009] The softening and heating device for the flat wire softening furnace of the enameling machine is used on the enameling machine. The enameling machine is provided with an unwinding device, a wire drawing device, a calendering device, a flat wire drawing device, a water cleaning device, a bare wire softening device, a painting device, a baking device and a rapid cooling zone device in sequence along the working direction; the bare wire softening device contains a flat wire softening furnace, and is characterized in that a softening and heating device is installed on the flat wire softening furnace; the softening and heating device comprises: a flat wire inlet mechanism, which is installed on the flat wire softening furnace; a bare wire softening tube, which is installed on the flat wire softening furnace, and the outer surface of the bare wire softening tube Aluminum silicate insulated heat-conducting pipes are arranged around the aluminum silicate insulated heat-conducting pipes, and softening pipe conductive heating pipes are arranged on the outer periphery of the aluminum silicate insulated heat-conducting pipes; the softening pipe conductive heating pipes and the two ends of the aluminum silicate insulated heat-conducting pipes are connected in the flat wire softening furnace; the softening pipe conductive heating pipes are electrically connected to the upper softening pipe conductor and the lower softening pipe conductor through a conductive copper bus; the inlet mechanism is assembled at one end of the bare wire softening pipe; the outlet mechanism is assembled at one end of the bare wire softening pipe; the heating guide mechanism is assembled on the flat wire softening furnace; the flat wire outlet mechanism is assembled on the flat wire softening furnace.

[0010] Furthermore, the flat wire feeding mechanism includes a movable bracket installed on the flat wire softening furnace, and a wire feeding guide wheel is installed on the movable bracket.

[0011] Furthermore, the movable bracket includes a movable base installed on the flat wire softening furnace, an I-shaped connecting frame is installed on the movable base, a fixing plate is installed on the I-shaped connecting frame by bolts, and an L-shaped bracket is installed on the fixing plate; a slot is opened on the L-shaped bracket, the slot is provided with a fastening member for fixing, and an inclined support seat is installed on the fastening member; the wire feed guide wheel is installed on the inclined support seat.

[0012] Furthermore, the wire inlet mechanism includes a wire inlet conduit threadedly sleeved on one end of the bare wire softening tube for inlet, a wire inlet wire pipe is arranged inside the wire inlet conduit, and a wear-resistant plate is covered on the inner wall of the wire inlet wire pipe.

[0013] Furthermore, the outlet mechanism includes an outlet conduit threadedly sleeved on one end of the bare wire softening tube, an outlet wire pipe is arranged in the outlet conduit, and a wear-resistant plate is covered on the inner wall of the outlet wire pipe.

[0014] Furthermore, the heating guide mechanism includes a heating guide bracket installed on the flat wire softening furnace and located between the wire outlet mechanism and the flat wire outlet mechanism, and the heating guide bracket is installed on the flat wire softening furnace by bolts; the heating guide bracket is provided with a guide groove with a through design, and a rectangular wire inlet and a rectangular wire outlet are respectively installed at both ends of the guide groove; the inner walls of the guide groove, the rectangular wire inlet and the rectangular wire outlet are covered with wear-resistant plates; the heating guide bracket is provided with a heating coil for heating the guide groove; the heating coil is connected to a second steam distribution valve; a first steam distribution valve is installed on the bare wire softening tube, and the first steam distribution valve is connected to the second steam distribution valve.

[0015] Furthermore, the flat wire outlet mechanism comprises an outlet bracket mounted on the flat wire softening furnace, and an outlet guide wheel is installed on the outlet bracket.

[0016] By adopting the above technical solution, compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model facilitates the entry and exit of the wires, and is novel, simple and easy to use. It adopts a low-voltage and high-current heating method, and directly conducts heat to the bare wire softening tube through an aluminum silicate insulated heat-conducting tube, which greatly improves the softening efficiency of the rectangular enameled wire bare wire. The upper softening tube conductor and the lower softening tube conductor are used to achieve two-point temperature control, and the furnace temperature fluctuates little, which greatly improves the performance and quality of the rectangular enameled wire bare wire softening.

[0018] 2. The wire guide wheel of the utility model is installed through a mounting bracket, and the mounting bracket is installed on the flat wire softening furnace, and the position can be adjusted to ensure the safety of the wire and facilitate the heating and softening of the bare wire.

[0019] 3. The utility model provides a heating guide bracket between the outlet mechanism and the flat wire outlet mechanism; steam heating is used for heat preservation, which improves the temperature maintenance of the bare wire after softening and facilitates subsequent processing.

[0020] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0022] Figure 1 It is a structural schematic diagram of the softening and heating device of the utility model.

[0023] Figure 2It is a structural schematic diagram of the flat wire feeding mechanism in the utility model.

[0024] Figure 3 It is a structural schematic diagram of the line inlet mechanism in the utility model.

[0025] Figure 4 It is a structural schematic diagram of the heating guide mechanism in the utility model. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] See also Figure 1-4 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0028] like Figure 1-4 As shown, this embodiment provides a softening heating device for a flat wire softening furnace of an enameling machine, which is used on an enameling machine. The enameling machine is composed of an unwinding device, a wire drawing device, a calendering device, a flat wire drawing device, a water cleaning device, a bare wire softening device, a painting device, a baking device and a rapid cooling zone device along the working direction.

[0029] The bare wire softening device includes a flat wire softening furnace 3, and a softening heating device is installed on the flat wire softening furnace 3.

[0030] The softening and heating device comprises a flat wire inlet mechanism, a bare wire softening tube, a wire inlet mechanism, a wire outlet mechanism, a heating guide mechanism and a flat wire outlet mechanism.

[0031] The flat wire inlet mechanism is installed on the flat wire softening furnace 3. The flat wire inlet mechanism includes a movable bracket 2 installed on the flat wire softening furnace 3, and the movable bracket 2 is installed with an inlet guide wheel 1. The movable bracket 2 includes a movable base 22 installed on the flat wire softening furnace, and an I-shaped connecting frame 21 is installed on the movable base 22. A fixing plate 20 is installed on the I-shaped connecting frame 21 through bolts, and an L-shaped bracket 18 is installed on the fixing plate 20. A card slot 17 is provided on the L-shaped bracket 18, and a fastening member 16 for fixing is sleeved on the card slot 17, and an inclined support seat 15 is installed on the fastening member 16, and the inlet guide wheel 15 is installed on the inclined support seat 15.

[0032] In addition, in order to ensure the stability of the installation, a buffer pad 19 is provided between the I-shaped connecting frame 21 and the fixing plate 20. The buffer pad 19 is a pad made of rubber material.

[0033] The bare wire softening tube 13 is installed on the flat wire softening furnace 3, and an aluminum silicate insulated heat conducting tube 4 is arranged on the outer periphery of the bare wire softening tube 13, and a softening tube conductive heating tube 6 is arranged on the outer periphery of the aluminum silicate insulated heat conducting tube 4. Both ends of the softening tube conductive heating tube 6 and the aluminum silicate insulated heat conducting tube 4 are connected in the flat wire softening furnace 3. The softening tube conductive heating tube 6 is electrically connected to the upper softening tube conductor 5 and the lower softening tube conductor 7 through a conductive copper busbar.

[0034] The wire inlet mechanism 14 is assembled at one end of the bare wire softening tube 13. The wire inlet mechanism comprises a wire inlet conduit 24 threadedly sleeved at one end of the bare wire softening tube, a wire inlet conduit 25 is arranged in the wire inlet conduit 24, and a wear-resistant plate 23 is covered on the inner wall of the wire inlet conduit 25.

[0035] The outlet mechanism is assembled at one end of the bare wire softening tube. The outlet mechanism includes an outlet conduit threadedly sleeved at one end of the bare wire softening tube, an outlet wire conduit is arranged in the outlet conduit, and a wear-resistant plate is covered on the inner wall of the outlet wire conduit.

[0036] The heating guide mechanism 10 is mounted on the flat wire softening furnace. The heating guide mechanism 10 includes a heating guide bracket installed on the flat wire softening furnace and located between the wire outlet mechanism and the flat wire outlet mechanism, and the heating guide bracket is installed on the flat wire softening furnace by bolts 27. A guide groove 28 with a through design is provided on the heating guide bracket, and a rectangular wire inlet 26 and a rectangular wire outlet 29 are respectively installed at both ends of the guide groove 28. The inner walls of the guide groove, the rectangular wire inlet and the rectangular wire outlet are covered with wear-resistant plates. A heating coil for heating the guide groove is provided on the heating guide bracket, and the heating coil is connected to the second steam distribution valve 8. A first steam distribution valve 11 is installed on the bare wire softening pipe, and the first steam distribution valve 11 is connected to the second steam distribution valve 8.

[0037] The flat wire outlet mechanism is mounted on the flat wire softening furnace. The flat wire outlet mechanism comprises an outlet bracket mounted on the flat wire softening furnace, and an outlet guide wheel 9 is installed on the outlet bracket.

[0038] Working principle: The cleaned rectangular bare wire is pulled into the bare wire softening tube by the wire guide wheel, and then connected to an external adjustable transformer to reduce the voltage and increase the current. After adjusting and controlling to the ideal range, the upper softening tube conductor and the lower softening tube conductor directly conduct electricity to the aluminum silicate insulated heat-conducting tube on the outer layer of the bare wire softening tube through the conductive copper busbar. The aluminum silicate insulated heat-conducting tube directly heats the bare wire softening tube with the heating temperature, thereby softening the rectangular enameled bare wire 1.

[0039] The temperature is controlled by an SCR regulator. The above independent temperature control method can improve the softening efficiency of the bare wire in the continuous production of the rectangular gas explosion line. Different bare wire softening temperatures can be set according to different production specifications, which greatly reduces the energy consumption required for the softening of the rectangular enameled wire, achieves the purpose of energy saving, and improves the efficiency of the production enterprise.

[0040] The utility model facilitates the line entry and exit, and is novel, simple and easy to use. It adopts the method of low voltage and high current heating, and directly conducts heat to the bare wire softening tube through the aluminum silicate insulated heat conducting tube, which greatly improves the softening efficiency of the rectangular enameled wire bare wire. The upper softening tube conductor and the lower softening tube conductor are adopted to realize two-point temperature control, and the furnace temperature fluctuates little, which greatly improves the performance and quality of the rectangular enameled wire bare wire softening.

[0041] The wire-in guide wheel of the utility model is installed through a mounting bracket, and the mounting bracket is mounted on the flat wire softening furnace, and the position can be adjusted to ensure the safety of the wire-in and facilitate the heating and softening of the bare wire.

[0042] The utility model arranges a heating guide bracket between the wire outlet mechanism and the flat wire outlet mechanism; steam heating is used for heat preservation, thereby improving the temperature maintenance of the bare wire after softening, and facilitating subsequent processing.

[0043] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the present invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not present in the present invention. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0044] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. Softening and heating device for softening furnace of flat wire of enameling machine, used on enameling machine, said enameling machine has unwinding device, wire drawing device, calendering device, flat wire drawing device, water cleaning device, bare wire softening device, painting device, baking device and rapid cooling zone device in the working direction; The bare wire softening device includes a flat wire softening furnace, which is characterized in that: The flat wire softening furnace is provided with a softening heating device; The softening and heating device comprises: A flat wire feeding mechanism is installed on the flat wire softening furnace; A bare wire softening tube is installed on the flat wire softening furnace, an aluminum silicate insulated heat-conducting tube is arranged on the outer periphery of the bare wire softening tube, and a softening tube conductive heating tube is arranged on the outer periphery of the aluminum silicate insulated heat-conducting tube; both ends of the softening tube conductive heating tube and the aluminum silicate insulated heat-conducting tube are connected in the flat wire softening furnace; the softening tube conductive heating tube is electrically connected to an upper softening tube conductor and a lower softening tube conductor through a conductive copper busbar; A wire inlet mechanism, mounted at one end of the bare wire softening tube; A wire outlet mechanism, mounted at one end of the bare wire softening tube; A heating guide mechanism, mounted on the flat wire softening furnace; The flat wire outlet mechanism is assembled on the flat wire softening furnace.

2. The softening heating device for the softening furnace of the enameling machine flat wire according to claim 1, characterized in that: The flat wire feeding mechanism comprises a movable bracket installed on the flat wire softening furnace, and a wire feeding guide wheel is installed on the movable bracket.

3. The softening and heating device for the softening furnace of the enameling machine flat wire according to claim 2, characterized in that: The movable bracket includes a movable base installed on the flat wire softening furnace, an I-shaped connecting frame is installed on the movable base, a fixing plate is installed on the I-shaped connecting frame by bolts, and an L-shaped bracket is installed on the fixing plate; a slot is opened on the L-shaped bracket, and the slot is provided with a fastening member for fixing, and an inclined support seat is installed on the fastening member; the wire feed guide wheel is installed on the inclined support seat.

4. The softening and heating device for the softening furnace of the enameling machine flat wire according to claim 3, characterized in that: The wire inlet mechanism comprises a wire inlet conduit threadedly sleeved on one end of the bare wire softening tube inlet, a wire inlet wire pipe is arranged in the wire inlet conduit, and a wear-resistant plate is covered on the inner wall of the wire inlet wire pipe.

5. The softening and heating device for the softening furnace of the enameling machine flat wire according to claim 3, characterized in that: The outlet mechanism comprises an outlet conduit threadedly sleeved on one end of the bare wire softening tube, an outlet wire pipe is arranged in the outlet conduit, and a wear-resistant plate is covered on the inner wall of the outlet wire pipe.

6. The softening and heating device for the softening furnace of the enameling machine flat wire according to claim 1, characterized in that: The heating guide mechanism includes a heating guide bracket installed on the flat wire softening furnace and located between the wire outlet mechanism and the flat wire outlet mechanism, and the heating guide bracket is installed on the flat wire softening furnace by bolts; the heating guide bracket is provided with a guide groove with a through design, and a rectangular wire inlet and a rectangular wire outlet are respectively installed at both ends of the guide groove; the inner walls of the guide groove, the rectangular wire inlet and the rectangular wire outlet are covered with wear-resistant plates; the heating guide bracket is provided with a heating coil for heating the guide groove; the heating coil is connected to a second steam distribution valve; the bare wire softening tube is provided with a first steam distribution valve, and the first steam distribution valve is connected to the second steam distribution valve.

7. The softening and heating device for the softening furnace of the enameling machine flat wire according to claim 1, characterized in that: The flat wire outlet mechanism comprises an outlet bracket mounted on the flat wire softening furnace, and an outlet guide wheel is installed on the outlet bracket.

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