A wire guiding system for large-sized enameled wire painting

Abstract

The present invention relates to a wire guiding system for large-sized enameled wires during painting, which includes a wire guiding wheel and a driver. The wire guiding wheel includes a constant-speed wheel with an axis line extending along the horizontal direction, and a transmission wheel arranged parallel to the constant-speed wheel. The constant-speed wheel is provided with multiple wheel grooves that are recessed inward from the surface and are spaced apart in sequence. The enameled wire fed from the upper wire system sequentially and continuously bypasses each wheel groove and the transmission wheel, and is transmitted from the transmission wheel to the take-up system. Each wheel groove matches the outer diameter of the enameled wire bypassed by it, and the multiple enameled wires located between the constant-speed wheel and the transmission wheel include upward wires located in the upper part and parallel to each other, downward wires located in the lower part and parallel to each other, and winding wires wound around the wheel grooves and the transmission wheel. For large-sized enameled wires with a diameter greater than 2.0 mm, the present invention can guide the wires under the same tension, reducing the probability of the enameled wire breaking due to being too tight or too loose.

Description

Technical Field

[0001] The present invention belongs to the field of copper-clad aluminum enameled wire processing equipment, and particularly relates to a wire guiding system for large-sized enameled wire painting. Background Art

[0002] As is well known, in the production process of copper-clad aluminum enameled wire, the copper-clad aluminum enameled wire needs to be painted. In the market, vertical enameling machines are mostly used. For vertical enameling machines, multiple painting processes are adopted for step-by-step painting. That is to say, after one coat is painted, it is dried. Although this implementation mode can realize the painting operation of the wire, for large-sized enameled wire, such as 2.0 - 4.0 mm, its defect is that since the same constant-speed wheel is used in multiple processes, and as the outer diameter of the enameled wire gradually becomes larger after multiple coats of paint, the tension formed by multiple enameled wires is unequal, and wire breakage often occurs. Once a wire breaks, the dropped enameled wire will interfere with other enameled wires and is very likely to be twisted (or wrapped) together with other enameled wires. As a result, the rejection rate is extremely high and it is not easy to handle, so the production cost is extremely high.

[0003] For horizontal enameling machines, although the problem of wire breakage interference can be solved, it has an obvious defect: all current horizontal enameling machines are for painting and coating small-sized (about 1.0 mm) enameled wire. Once the outer diameter of the enameled wire is 2.0 - 4.0 mm (or even greater than 4.0 mm), it also has the above-mentioned defect, that is, the tension formed by multiple enameled wires is unequal and wire breakage often occurs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved wire guiding system for large-sized enameled wire painting.

[0005] To solve the above technical problem, the present invention adopts the following technical solutions:

[0006] A wire guiding system for large-sized enameled wire painting, which includes a wire guiding wheel and a driver. The wire guiding wheel includes a constant-speed wheel with an axis line extending along the horizontal direction and a transmission wheel arranged parallel to the constant-speed wheel. The constant-speed wheel is provided with multiple grooves that are recessed inward from the surface and are spaced apart in sequence. The enameled wire fed from the upper wire system sequentially and continuously bypasses each groove and the transmission wheel and is transmitted from the transmission wheel to the take-up system. Each groove matches the outer diameter of the corresponding enameled wire bypassed, and the multiple enameled wires between the constant-speed wheel and the transmission wheel include upper parallel wires located in the upper part, lower parallel wires located in the lower part, and winding wires wound on the grooves and the transmission wheel.

[0007] Preferably, the outer diameters of the multiple winding wires are set to gradually increase from one end of the axle of the constant-speed wheel to the other end, and the vertical distance from the bottom of each corresponding wheel groove to the axis line of the constant-speed wheel is proportional to the outer diameters of the multiple winding wires.

[0008] According to a specific implementation and preferred aspect of the present invention, the outer diameters of the multiple winding wires change in an arithmetic progression, and the vertical distances from the bottoms of the multiple wheel grooves to the axis line of the constant-speed wheel also change in an arithmetic progression correspondingly.

[0009] According to another specific implementation and preferred aspect of the present invention, the wheel groove is a V-shaped groove or a U-shaped groove. When the wheel groove is V-shaped, the winding wire is in tangential fit with the inner arms on both sides of the V shape; when the wheel groove is U-shaped, the winding wire bypasses the corresponding wheel groove by fitting with the bottom of the U shape.

[0010] Preferably, the wheel groove is a V-shaped groove, and the angle formed by the two side arms of the V-shaped groove corresponds to the outer diameter of the winding wire and is in a proportional relationship.

[0011] Specifically, the angles formed by the two side arms of the multiple V-shaped grooves arranged side by side change in an arithmetic progression.

[0012] According to another specific implementation and preferred aspect of the present invention, on each movement path of the enameled wire, there is a tensioner that can individually tension and adjust each passing upward wire.

[0013] Preferably, the tensioner includes a chassis positioned between the upward wire and the downward wire, a pedestal located above the chassis, a pedestal wheel provided on the pedestal, and an elastic member provided between the pedestal and the chassis and maintaining a tendency for the pedestal to move upward. The upward wire bypasses the pedestal wheel and is transmitted to the transmission wheel. The pedestal wheel is freely rotatably provided on the pedestal about its own axis, and a guide groove matching the upward wire is formed on the pedestal wheel.

[0014] Furthermore, the guide groove is a V-shaped groove or a U-shaped groove. When the wheel groove is V-shaped, the upward wire is in tangential fit with the inner arms on both sides of the V shape; when the wheel groove is U-shaped, the upward wire bypasses the corresponding guide groove by fitting with the bottom of the U shape.

[0015] Preferably, the guide groove is V-shaped, the outer diameter of the upward wire is set to gradually increase from one end of the axle of the constant-speed wheel to the other end, and the angle formed by the two side arms of the V-shaped groove corresponds to the outer diameter of the upward wire and is in a proportional relationship.

[0016] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0017] The present invention is composed of the distribution of multiple wheel grooves, and the outer diameter of the enameled wire bypassed by each wheel groove is matched, so that under the transmission of the same constant-speed wheel and transmission wheel, the wire running of enameled wires with different outer diameters is satisfied. Especially for large-size enameled wires with a diameter greater than 2.0 mm, wire running can be carried out under the same tension, reducing the probability of enameled wire breakage caused by being too tight or too loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0019] Figure 1 is a schematic structural diagram of the horizontal enameled wire machine of the present invention;

[0020] Figure 2 is Figure 1 a partially enlarged top view schematic diagram;

[0021] Figure 3 is a simplified schematic diagram of the wire running path of the present invention;

[0022] Figure 4 is Figure 2 an enlarged structural schematic diagram of the constant-speed wheel in

[0023] Figure 5 is Figure 2 an enlarged structural schematic diagram of the painting system in

[0024] Figure 6 is Figure 5 an enlarged structural schematic diagram of the painting die in

[0025] In the drawings: ①, the upper wire system; t, the enameled wire unwinding mechanism; z, the transfer wheel;

[0026] ②, the wire running system; 1, the wire running wheel; 10, the constant-speed wheel; 100, the V-shaped groove; 11, the transmission wheel; a, the upward wire; b, the downward wire; c, the winding wire;

[0027] ③, the painting system; 3, the painting seat; 4, the spray head; 40, the body; 40a, the avoidance notch; a1, the spray hole; 5, the painting die; 50, the channel; 500, the positioning section; 501, the painting section; s1, the reduction area; d1, the quantitative area; 6, the tensioner; 60, the chassis; 61, the frame seat; 62, the frame wheel; 620, the guide groove; 63, the elastic member;

[0028] ④, the drying system; 2, the heat treatment furnace;

[0029] ⑤, the wire winding system; 7, the enameled wire winding mechanism; 8, the wire guide wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0033] In the present application, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or that the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0035] As Figure 1 shown, this embodiment is applicable to a horizontal enameling machine for large-sized enameled wires, which includes a wire feeding system ①, a wire running system ②, a painting system ③, a drying system ④, and a wire winding system ⑤.

[0036] Specifically, the outer diameter of large-sized enameled wires is generally between 2.0 and 4.0 mm, and the horizontal enameling machine in this example is particularly suitable for the processing of painting and coating of enameled wires with an outer diameter between 2.0 and 4.0 mm.

[0037] In this example, the wire feeding system ① includes an enameled wire unwinding mechanism t and a transfer wheel z for transferring the unwound enameled wire to the wire running system ②.

[0038] The wire running system ② is used for the horizontal, side-by-side and continuous transmission of enameled wires.

[0039] The painting system ③ is arranged on the enameled wire transmission path and paints each enameled wire.

[0040] The drying system ④ is used for drying the enameled wire after painting.

[0041] The wire winding system ⑤ is used for continuously completing the material collection of the enameled wire after multiple coatings and drying.

[0042] Combined Figure 2 shown, the wire running system ② includes a wire running wheel 1 and a driver, wherein the wire running wheel 1 includes a constant-speed wheel 10 with an axis line extending along the horizontal direction and a transmission wheel 11 arranged parallel to the constant-speed wheel 10.

[0043] Specifically, the constant-speed wheel 10 is provided with multiple V-shaped grooves 100 that are recessed from the surface inward and are spaced apart in sequence. The enameled wire fed in from the upper wire system ① successively and continuously bypasses each V-shaped groove 100 and the transmission wheel 11, and is transmitted from the transmission wheel 11 to the take-up system ⑤.

[0044] In this example, the multiple enameled wires located between the constant-speed wheel 10 and the transmission wheel 11 include the upward wires a that are parallel to each other at the upper part, the downward wires b that are parallel to each other at the lower part, and the winding wires c that are wound around the V-shaped grooves 100 and the transmission wheel 11.

[0045] The drying system ④ includes a heat treatment furnace 2 arranged horizontally. The upward wire a passes through the heat treatment furnace 2, and the downward wire b is located below the heat treatment furnace 2.

[0046] In this example, there are three groups of wire systems ②. Among them, the three constant-speed wheels 10 are coaxially arranged, the three transmission wheels 11 are coaxially arranged, and the upward wires a of the enameled wires bypassing each group of wire systems ② pass through the same heat treatment furnace 2. In this way, the enameling machine can synchronously perform the enameling coating of multiple coils of enameled wires, improving efficiency and saving costs.

[0047] Combined with Figure 3 As shown, the upward wire a and the downward wire b are arranged relatively intersectingly, which can achieve continuous winding. Combined with the setting of the V-shaped groove, it will not cause the bending of the enameled wire.

[0048] Each winding wire c is tangentially engaged with the inner arms on both sides of the corresponding V-shaped groove 100.

[0049] Combined with Figure 4 As shown, the outer diameter of the winding wire c is set to gradually increase from one end of the axle of the constant-speed wheel 10 to the other end. At this time, the vertical distance from the bottom of the V-shaped groove 100 to the axis of the axle and the included angle formed by the two side arms of the V-shaped groove 100 are both set corresponding to the outer diameter of the winding wire and are in a direct proportional relationship. In this way, under the transmission of the same constant-speed wheel and transmission wheel, it meets the requirements for enameling different outer diameter enameled wires under relatively appropriate tension, reducing the probability of the enameled wire breaking due to being too tight or too loose.

[0050] In this example, the outer diameters of the multiple winding wires c change in an arithmetic progression, and the vertical distances from the bottoms of the multiple V-shaped grooves 100 to the axis of the axle of the constant-speed wheel 10 also change in an arithmetic progression correspondingly. This can realize the enameling operation of the enameled wire layer by layer and with the same thickness, which is convenient to implement and the quality of the enameled wire can be guaranteed.

[0051] At the same time, in Figure 4It can be clearly seen that the angle formed by the V-shaped groove 100 gradually increases from 83°, 91°, 99°, 107°, 115° (obviously also changing in an arithmetic progression). At the same time, the outer diameter of the winding wire c corresponding to it is also set to increase correspondingly. As for whether there is a pattern in the angle change, this completely depends on the increase amount of the paint thickness for each pass. Then it should be noted that Figure 4 Although only five V-shaped grooves 100 are shown in [reference], they can be added according to actual needs. Conventionally, there are eight, nine or more grooves.

[0052] Combined with Figure 5 As shown, the painting system ③ is located between the heat treatment furnace 2 and the constant speed wheel 10, and is set in one-to-one correspondence with each group of wire running systems ②.

[0053] Specifically, the painting system ③ includes a painting seat 3, spray heads 4 arranged side by side on the painting seat 3 and corresponding to the upward running wire a one by one, and painting molds 5 arranged on the painting seat 3 and corresponding to the spray heads 4 one by one.

[0054] In this example, the spray head 4 includes a body 40 with an avoidance notch 40a formed by a depression from the top downwards, and a liquid supply component for supplying paint to the avoidance notch 40a. Among them, a spray hole a1 is formed at the bottom of the avoidance notch 40a, and the paint sprays from the spray hole a1 and wraps around the outer circumference of the upward running wire a passing through the avoidance notch 40a. The excess paint directly flows back into the paint tank to achieve circulating paint supply.

[0055] Combined with Figure 6 As shown, a channel 50 for the upward running wire a to pass through is formed inside the painting mold 5. The channel 50 includes a positioning section 500 and a painting section 501 distributed in sequence along the moving direction of the upward running wire.

[0056] The inner diameter of the positioning section 500 is larger than the outer diameter of the upward running wire a to pass through, and it is straight cylindrical.

[0057] The inner diameter of the painting section 501 gradually becomes smaller along the moving direction of the upward running wire a, and includes a reduction area s1 and a quantitative area d1 arranged in sequence.

[0058] The inner diameter at the outlet of the quantitative area d1 is R, the outer diameter of the upward running wire a to pass through is D, and the paint thickness to be applied is X, where R = D + 2X. This can not only remove the excess paint on the surface of the upward running wire, but also evenly coat the paint on the surface of the upward running wire more uniformly.

[0059] In addition, the above-mentioned enameling machine further includes a tensioner 6 located between the heat treatment furnace 2 and the transmission wheel 11 and used for tension adjustment of each passing upward running wire a. That is to say, the tensioner corresponds to each upward running wire, that is, each tensioner is independent. In this way, each enameled wire is painted under the tension suitable for itself, thereby further reducing the probability of the enameled wire breaking due to being too tight or too loose.

[0060] The tensioner 6 includes a base frame 60 positioned between the upward line a and the downward line b, a frame seat 61 located above the base frame 60, a frame wheel 62 arranged on the frame seat 61, and an elastic component 63 arranged between the frame seat 61 and the base frame 60 and maintaining the frame seat 61 with an upward push-up movement tendency. The upward line a bypasses the frame wheel 62 and is transmitted to the transmission wheel 11.

[0061] The frame wheel 62 is arranged on the frame seat 61 to rotate freely around its own axis, and a guide groove 620 matching the upward line a is formed on the frame wheel 62.

[0062] The guide groove 620 is also a V-shaped groove, and the upward line a is tangentially matched with the inner arms on both sides of the V. It is not only convenient to adjust the tension of the enameled wire, but also convenient to transmit the enameled wire under the action of the guide groove.

[0063] Similarly, the outer diameter of the upward line a is gradually increased from one end of the axle of the fixed speed wheel to the other end, and the angle formed by the two side arms of the V-shaped groove corresponds to the outer diameter of the upward line and is proportional. In this way, the tension adjustment of enameled wires with different outer diameters can be met.

[0064] In addition, a suitable elastic component 63 is selected according to actual needs. In this example, the elastic component 63 is a commonly used spring.

[0065] As for the wire taking-up system ⑤, it includes an enameled wire taking-up mechanism 7 and a guide wheel 8 located above the transmission wheel 11.

[0066] In summary, the painting process of this embodiment is as follows:

[0067] 1) The enameled wire sent out from the on-line system is sent into the corresponding spray head and painting mold through the first wheel groove. The painting mold removes the excess paint on the surface of the coated enameled wire and sends it horizontally into the heat treatment furnace for drying under the wrapping of quantitative paint;

[0068] 2) After drying, the enameled wire passes through the transmission wheel and is returned from the bottom of the heat treatment furnace to the fixed-speed wheel, bypasses the second wheel groove, and repeats the process of step 1) until the painting and drying of the upward wire bypassing the fifth wheel groove is completed;

[0069] 3) After the fifth upward line is dried, the enameled wire bypasses the transmission wheel and goes to the wire collection system, which collects the completed enameled wire.

[0070] In summary, this embodiment has the following advantages:

[0071] 1) Multiple enameled wires are horizontally and side by side in and out of the heat treatment furnace for drying and transmission. Even if the wires are accidentally broken, it will not affect or interfere with the adjacent enameled wires, thus reducing the scrap rate of the enameled wires;

[0072] 2), Through the distribution of multiple grooves, and the outer diameter of each groove matching the enameled wire it bypasses, thus, under the transmission of the same constant-speed wheel and transmission wheel, the painting of enameled wires with different outer diameters is satisfied. Especially for enameled wires with an outer diameter of 2.0 - 4.0 mm (or above 4.0 mm), painting is carried out under the same tension, reducing the probability of the enameled wire breaking due to being too tight or too loose;

[0073] 3), Use a heat treatment furnace to dry the upward lines of multi-channel painting simultaneously. Moreover, the settings of the constant-speed wheel and multiple transmission wheels on the same axis respectively are adopted. In this way, under the drying of one heat treatment furnace, the synchronous painting of multiple coils of enameled wire can be completed, which not only has a simple structure and is convenient to implement, but also greatly reduces the cost of painting and coating;

[0074] 4), Set corresponding tensioners according to the outer diameters of different upward lines to further ensure that each enameled wire is in a suitable tension state. In this way, each enameled wire is painted under a tension suitable for itself, thereby further reducing the probability of the enameled wire breaking due to being too tight or too loose;

[0075] 5), There are no operation defects, nor is it necessary for multiple people to cooperate and climb up and down for operation. The work intensity of employees is small. At the same time, the structure of the whole machine is compact, and installation and maintenance are very convenient, reducing potential safety hazards during operation.

[0076] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A wire guiding system for large-sized enameled wire painting, comprising a wire guiding wheel and a driver, characterized in that: The outer diameter of the enameled wire is 2.0-4.0mm; The wire wheel comprises a fixed-speed wheel whose axis extends in the horizontal direction, and a transmission wheel arranged in parallel with the fixed-speed wheel. The fixed-speed wheel is provided with a plurality of wheel grooves which are recessed inward from the surface and are sequentially spaced. The enameled wire supplied from the upper wire system sequentially and continuously bypasses each wheel groove and the transmission wheel, and is transmitted from the transmission wheel to the wire collection system. Each wheel groove matches the outer diameter of the corresponding enameled wire bypassed. The plurality of enameled wires located between the fixed-speed wheel and the transmission wheel include an upper wire located at the upper part and parallel to each other, a lower wire located at the lower part, and a plurality of enameled wires disposed between the fixed-speed wheel and the transmission wheel. The plurality of winding wires are parallel to each other, and the winding wires are wound on the wheel groove and the transmission wheel; the outer diameters of the plurality of winding wires are gradually enlarged from one end of the wheel shaft of the constant speed wheel to the other end, and the vertical distances from the bottom of each corresponding groove of the plurality of wheel grooves to the axis center line of the constant speed wheel are proportional to the outer diameters of the plurality of winding wires; the outer diameters of the plurality of winding wires change in an arithmetic progression, and the vertical distances from the bottom of the plurality of wheel grooves to the axis center line of the constant speed wheel also change in an arithmetic progression to achieve the coating of the enameled wire layer by layer and with the same thickness; A painting mold is also provided on the moving path of the upward line, wherein a channel for the upward line to pass through is formed inside the painting mold, each channel includes a positioning section and a painting section which are sequentially distributed along the moving direction of the upward line, the inner diameter of the positioning section is larger than the outer diameter of the upward line to pass through; the inner diameter of the painting section gradually decreases along the moving direction of the upward line, and includes a reduction zone and a quantitative zone which are sequentially arranged, the inner diameter at the exit of the quantitative zone is R, the outer diameter of the upward line to pass through is D, the thickness of the paint to be applied is X, and R=D+2X.

2. The wire guiding system for large-sized enameled wire painting according to claim 1, characterized in that: The wheel groove is a V-shaped groove or a U-shaped groove, wherein when the wheel groove is V-shaped, the winding line is tangentially matched with the inner arms on both sides of the V-shape; when the wheel groove is U-shaped, the winding line is in contact with the bottom of the U-shape and bypasses the corresponding wheel groove.

3. The wire guiding system for large-sized enameled wire painting according to claim 2, characterized in that: The wheel groove is a V-shaped groove, and the angle formed by the two side arms of the V-shaped groove corresponds to the outer diameter of the winding wire and is in direct proportion.

4. The wire guiding system for large-size enameled wire painting according to claim 3, characterized in that: The included angles formed by the two side arms of the multiple V-shaped grooves arranged side by side change in an arithmetic progression.

5. The wire guiding system for large-sized enameled wire painting according to claim 1, characterized in that: A tensioner is provided on each enameled wire moving path and is capable of individually adjusting the tension of each of the upstream wires passing through.

6. The wire guiding system for large-sized enameled wire painting according to claim 5, characterized in that: The tensioner includes a base frame positioned between the upward line and the downward line, a frame seat located above the base frame, a frame wheel arranged on the frame seat, and an elastic component arranged between the frame seat and the base frame and maintaining the upward movement tendency of the frame seat. The upward line bypasses the frame wheel and is transmitted to the transmission wheel. The frame wheel is arranged on the frame seat and can rotate freely around its own axis, and a guide groove matching the upward line is formed on the frame wheel.

7. The wire guiding system for large-sized enameled wire painting according to claim 6, characterized in that: The guide groove is a V-shaped groove or a U-shaped groove, wherein when the wheel groove is V-shaped, the upward line is tangent to the inner arms on both sides of the V-shape; when the wheel groove is U-shaped, the upward line is in contact with the bottom of the U-shape and bypasses the corresponding guide groove.

8. The wire feeding system for large-size enameled wire painting according to claim 7, characterized in that: The guide groove is V-shaped, and the outer diameter of the upward line is gradually increased from one end of the axle of the fixed speed wheel to the other end. The angle formed by the two side arms of the V-shaped groove corresponds to the outer diameter of the upward line and is proportional.

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