Wire coating device and wire coating method

Abstract

The invention discloses a wire coating device and a wire coating method, and relates to the technical field of additive manufacturing. The wire coating device comprises a wire feeding mechanism, a coating mechanism, a water feeding mechanism and a blow-drying mechanism; the coating mechanism is provided with a rotary glue cavity; the glue cavity is positioned on a transmission path of the wire; a water supply pipe of the water supply mechanism is communicated with the glue cavity water adding hole; the blow-drying mechanism is provided with an air blowing pipe, a blow-drying channel and a blow-in opening. The tail end of the blowing pipe corresponds to the blowing inlet; the wire coating method comprises the following steps that S1, powder needing to be added and colloid are fully mixed, and a coating solution is formed; s2, the coating liquid is placed in a glue cavity; s3, according to the type and the volume of the coating liquid, setting the water conveying amount in a water conveying pipe, the air flow in an air blowing pipe and the rotating speed of a glue cavity; and S4, the wire feeding mechanism is started, the wire sequentially penetrates through the penetrating-in hole, the glue cavity, the penetrating-out hole and the blow-drying channel, and wire coating operation is completed. And long-time operation can be stably and reliably supported.

Description

Technical Field

[0001] The present invention relates to the technical field of additive manufacturing, and in particular to a wire coating device and a wire coating method. Background Art

[0002] Additive manufacturing technology is a new advanced manufacturing technology developed in recent years that integrates computer technology, numerical control technology and material processing technology. This technology uses a layer-by-layer accumulation method to achieve the manufacturing of solid parts and the interlayer combination of dissimilar materials. It has the characteristics of short manufacturing cycle, small workpiece deformation, dense organization, large changes in particle size and content. It has good controllability, can realize three-dimensional automatic processing, and has high processing quality.

[0003] In the process of additive manufacturing of composite materials, coating wires with coating liquid often requires a long time in actual production. During this process, the coating liquid will lose water and dry up, resulting in the inability to effectively adhere to the wire, affecting normal processing operations. Therefore, there is an urgent need for a wire coating device and a wire coating method that are stable and reliable and can support long-term operations. Summary of the invention

[0004] The purpose of the present invention is to provide a wire coating device and a wire coating method to solve the problems existing in the above-mentioned prior art and to achieve stable and reliable support for long-term operation.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a wire coating device, comprising a wire feeding mechanism, a coating mechanism, a water feeding mechanism and a blow-drying mechanism; the wire feeding mechanism is used to guide the wire to move along a specified path; the coating mechanism has a rotating glue chamber, and the glue chamber is used to contain a coating liquid; the glue chamber is also provided with an entry hole, an exit hole and a water adding hole connected thereto; the glue chamber is located on the transmission path of the wire, and the entry hole and the exit hole are used for the threading of the wire; the water feeding mechanism has a water feeding pipe, the end of the water feeding pipe can be connected to the water adding hole; and the water feeding pipe is used to transport water; the blow-drying mechanism has a blow pipe, a blow-drying channel and a blow inlet connected to the blow-drying channel; on the transmission path of the wire, the blow-drying channel is located at the rear side of the glue chamber, and the wire coated with the coating liquid enters the blow-drying channel after passing through the exit hole; the end of the blow pipe corresponds to the blow inlet, and the blow pipe is used to transport compressed gas.

[0007] Preferably, the coating mechanism comprises a front end member, a middle member, a rear end member and a driver; on the transmission path of the wire, the front end member is located at the front end of the middle member, and the rear end member is located at the rear end of the middle member; and the front end member and the rear end member are both fixed in position, and the two ends of the middle member are rotatably connected with the corresponding front end member and the rear end member respectively; the front end member is provided with a front end through hole and a water flow guide hole; the middle member is provided with the glue cavity and an inlet, an outlet and a water flow inlet connected with the glue cavity; the rear end member is provided with a rear end through hole; the driver is used to drive the middle member to rotate; the water flow guide hole can be connected with the water flow inlet; the water flow guide hole and the water flow inlet jointly form the water adding hole; the front end through hole and the inlet jointly form the penetration hole, and the rear end through hole and the outlet jointly form the penetration hole; the wire is sequentially penetrated into the front end through hole, the inlet, the glue cavity, the outlet and the rear end through hole.

[0008] Preferably, the apertures of the inlet and the outlet are the same, and the apertures of the front through hole and the rear through hole are the same; the aperture of the inlet is larger than the diameter of the wire and smaller than the aperture of the front through hole.

[0009] Preferably, the aperture of the inlet is 120% of the diameter of the wire.

[0010] Preferably, the blow-drying mechanism includes an extension tube; the extension tube has the blow-drying channel running through it, one end of the extension tube is fixedly connected to the rear end piece, and the rear end through hole is connected to the blow-drying channel; the axis of the blow-drying channel coincides with the wire transmission path, and the blow inlet is provided on the side wall of the extension tube, and the extension direction of the blow inlet is parallel to the wire transmission path.

[0011] Preferably, a wire receiving tube is fixedly provided on a side of the front end member away from the middle member and a side of the extension tube away from the rear end member; the wire receiving tube is used for threading the wire.

[0012] Preferably, the wire feeding mechanism includes a front wire feeder and a rear wire feeder; on the wire transmission path, the front wire feeder is located at the front end of the coating mechanism, and the rear wire feeder is located at the rear end of the coating mechanism; the front wire feeder has two first wire feeding wheels that are relatively and rotatably arranged; the rear wire feeder has two second wire feeding wheels that are relatively and rotatably arranged; the two first wire feeding wheels and the two second wire feeding wheels are used for threading the wire.

[0013] Preferably, the front end member and the middle member, as well as the rear end member and the middle member, are rotatably connected via bearings.

[0014] Preferably, a sealing device is further provided between the water flow guide hole and the water flow inlet; the sealing device can keep the water flow inlet closed when the water flow guide hole and the water flow inlet are not connected.

[0015] The present invention also provides a wire coating method based on any one of the wire coating devices described above, comprising the following steps:

[0016] S1, fully mixing the powder to be added with the colloid to form a coating liquid;

[0017] S2, placing the formed coating liquid in the glue cavity;

[0018] S3, according to the type and volume of the coating liquid, the water delivery amount in the water delivery pipe, the air flow in the blowing pipe and the rotation speed of the glue chamber are set; after checking that everything is correct, the water delivery pipe is opened to deliver water, the blowing pipe is opened to blow water and air, so that the glue chamber starts to rotate;

[0019] S4, starting the wire feeding mechanism, the wire passes through the entry hole, the glue cavity, the exit hole and the drying channel in sequence, and the wire coating operation is completed.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The wire coating device provided by the present invention, by providing a rotating glue chamber and a water supply pipe and a water adding hole that can replenish water, can realize the functions of replenishing and stirring the coating liquid compared to the existing structure, effectively solves the problems of dehydration and drying of the coating liquid and internal unevenness of the coating liquid caused by excessive duration in the manufacturing process, can stably and reliably support long-term operation, greatly simplifies the maintenance operation of the coating liquid, improves manufacturing efficiency, and has good industrialization prospects; and the provided drying mechanism can accelerate the solidification of the coating liquid, reduce the loss caused by its shedding before solidification, and at the same time prevent the coating liquid from carrying the beam moisture into the additive manufacturing operation area, effectively avoiding defects such as pores caused by excessive moisture in the additive manufacturing process.

[0022] Furthermore, the front end member and the rear end member are fixed in position as a stable supporting structure for the entire coating mechanism. The two ends of the middle member are rotatably connected to the front end member and the rear end member respectively. This connection method enables the middle member to rotate stably under the drive of the driver, which is beneficial for the wire to always pass through each hole and glue cavity in the correct position during long-term operation, reducing problems such as uneven wire coating or damage caused by device shaking or component displacement.

[0023] Furthermore, the design of the inlet and outlet apertures being smaller than the front end through hole and the rear end through hole can effectively reduce the leakage of the coating liquid from the inlet and outlet. Due to the fluidity of the coating liquid itself, it will not flow out from the inlet and outlet even when the wire does not pass through. During the wire transmission process, since the coating liquid is mainly concentrated in the glue cavity, the relatively small aperture at the inlet can form a "bottleneck" structure, further preventing the coating liquid from leaking from the inlet and outlet; if the aperture is too large, part of the coating liquid may be exposed, resulting in waste; and the smaller aperture can also constrain and limit the coating liquid on the wire, thereby reducing the amount of coating liquid on the wire.

[0024] Furthermore, an inlet with an aperture of 120% of the wire diameter can make the space in this annular area relatively reasonable, and the flow of the coating liquid will not be blocked due to the small aperture. During long-term operation, this reasonable flow space can ensure that the coating liquid continuously and stably wraps the wire, thereby improving the coating quality.

[0025] Furthermore, the compressed gas in the longer drying channel can more thoroughly remove the moisture or solvent in the coating liquid, so that the coating layer on the surface of the wire can be dried more fully, effectively improving the drying effect and ensuring the coating quality of the wire.

[0026] Furthermore, wire feeding tubes are respectively arranged on both sides of the front end piece and the extension tube, which provide a longer distance of guidance for the wire and reduce the shaking and deviation of the wire, thereby ensuring that the wire accurately passes through the front end piece and out of the extension tube, so that the entire coating and drying process can be carried out stably.

[0027] Furthermore, the front wire feeder and the rear wire feeder are respectively located at the front and rear ends of the coating mechanism. This double wire feeder setting can perform bidirectional traction on the wire; the wire feeding wheel can ensure the straightness of the wire, so that the wire can pass through the rubber cavity smoothly; and the synergistic effect of the two wire feeders helps to maintain the stability of the wire tension.

[0028] Furthermore, by connecting the front end component and the middle component, and the rear end component and the middle component through bearings, it is possible to ensure that the middle component is accurately positioned during rotation. The bearings can withstand radial and axial forces, so that the rotating axis of the middle component remains stable during long-term operation. The use of bearings greatly reduces the friction between components.

[0029] Furthermore, a sealing device is provided between the water flow guide hole and the water flow inlet. When the water flow guide hole and the water flow inlet are not connected, the sealing device can effectively close the water flow inlet, thereby reducing the outflow of the coating liquid from the water flow inlet; and can prevent external impurities, such as dust, metal chips, etc. from entering the glue cavity and affecting the quality of the coating liquid.

[0030] The present invention also provides a wire coating method based on the above wire coating device, firstly fully mixing the powder and the colloid to form a coating liquid, which can ensure that the coating liquid composition is uniform. In the long-term wire coating operation, the uniform coating liquid is the key to achieving stable coating quality on the wire surface; after the colloid cavity rotates, the coating liquid is in a good flow mixing state, water supply can maintain the stable flow of the coating liquid, and air blowing can promptly deal with subsequent drying problems; the whole process ensures the integrity and stability of the wire coating, so that the effect of the wire coating can remain stable and reliable during batch operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a schematic diagram of the overall structure of the wire coating device provided by the present invention (excluding the driver in the coating mechanism);

[0033] Figure 2 This is a schematic cross-sectional structure diagram of a coating mechanism in a wire coating device provided by the present invention.

[0034] In the figure:

[0035] 10-front wire feeder; 11-first wire feed wheel;

[0036] 20-transmitting wire tube;

[0037] 30-front end member; 31-water delivery pipe; 32-front end through hole; 33-water flow guide hole;

[0038] 40-middle part; 41-inlet; 42-rubber cavity; 43-outlet; 44-water inlet;

[0039] 50-rear end member; 51-rear end through hole;

[0040] 60- extension tube; 61- blowing tube; 62- blowing inlet;

[0041] 70 - rear wire feeder; 71 - second wire feeding wheel. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The purpose of the present invention is to provide a wire coating device and a wire coating method to solve the problems existing in the prior art and to achieve stable and reliable support for long-term operation.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Embodiment 1

[0046] This embodiment provides a wire coating device, which is mainly but not limited to the application of particle gel coating on wire, such as Figure 1 and Figure 2 As shown, it includes a wire feeding mechanism, a coating mechanism, a water feeding mechanism and a blow-drying mechanism; the wire feeding mechanism is used to guide the wire to move along a specified path; the coating mechanism has a rotating glue chamber 42, and the glue chamber 42 is used to contain a coating liquid (such as a granular gel formed by a mixture of powder and colloid); the glue chamber 42 is also provided with an entry hole, an exit hole and a water adding hole connected thereto; the glue chamber 42 is located on the transmission path of the wire, and the entry hole and the exit hole are used for the threading of the wire; the water feeding mechanism has a water feeding pipe 31, the end of the water feeding pipe 31 can be connected to the water adding hole; and the water feeding pipe 31 is used to transport water; the blow-drying mechanism has a blow pipe 61, a blow-drying channel and a blow inlet 62 connected to the blow-drying channel; on the transmission path of the wire, the blow-drying channel is located at the rear side of the glue chamber 42, and the wire coated with the coating liquid enters the blow-drying channel after passing through the exit hole; the end of the blow pipe 61 corresponds to the blow inlet 62, and the blow pipe 61 is used to transport compressed gas.

[0047] By providing a rotating glue chamber 42 and a water supply pipe 31 and a water adding hole that can replenish water, compared with the existing structure, the functions of replenishing water and stirring the coating liquid can be realized, and the phenomenon of dehydration and drying of the coating liquid and internal unevenness of the coating liquid caused by excessive duration in the manufacturing process can be effectively solved. It can stably and reliably support long-term operation, greatly simplify the maintenance operation of the coating liquid, improve manufacturing efficiency, and have good industrialization prospects; and the provided drying mechanism can accelerate the solidification of the coating liquid and reduce the loss caused by its shedding before solidification, while preventing the coating liquid from carrying the water from the beam into the additive manufacturing operation area, effectively avoiding defects such as pores caused by excessive water in the additive manufacturing process.

[0048] Among them, the relevant settings of the wire feeding mechanism are as follows:

[0049] In the optional scheme of this embodiment, it is more preferred that Figure 1 As shown, the wire feeding mechanism includes a front wire feeder 10 and a rear wire feeder 70; on the transmission path of the wire, the front wire feeder 10 is located at the front end of the coating mechanism, and the rear wire feeder 70 is located at the rear end of the coating mechanism; the front wire feeder 10 has two first wire feeder wheels 11 that are relatively and rotatably arranged; the rear wire feeder 70 has two second wire feeder wheels 71 that are relatively and rotatably arranged; the two first wire feeder wheels 11 and the two second wire feeder wheels 71 are used for threading the wire. The front wire feeder 10 and the rear wire feeder 70 are respectively located at the front and rear ends of the coating mechanism. This double wire feeder arrangement can pull the wire in both directions; the wire feeder wheels can ensure the straightness of the wire, so that the wire can smoothly pass through the rubber cavity 42; and the synergistic effect of the two wire feeders helps to maintain the stability of the wire tension.

[0050] Among them, the relevant setting instructions for the coating mechanism:

[0051] In the optional scheme of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the coating mechanism includes a front end member 30, a middle member 40, a rear end member 50 and a driver; on the transmission path of the wire, the front end member 30 is located at the front end of the middle member 40, and the rear end member 50 is located at the rear end of the middle member 40; and the front end member 30 and the rear end member 50 are both fixed in position, and the two ends of the middle member 40 are rotatably connected to the corresponding front end member 30 and the rear end member 50 respectively; the front end member 30 has a front end through hole 32 and a water flow guide hole 33; the middle member 40 has a glue cavity 42 (similar to a cylindrical structure) and a glue cavity 43 (similar to a cylindrical structure) and a glue cavity 44 (similar to a cylindrical structure) and a glue cavity 45 (similar to a cylindrical structure) and a glue cavity 46 (similar to a cylindrical structure) and a glue cavity 47 (similar to a cylindrical structure) and a glue cavity 48 (similar to a cylindrical structure) and a glue cavity 49 (similar to a cylindrical structure) and a glue cavity 41 (similar to a cylindrical structure) and a glue cavity 42 (similar to a cylindrical structure) and a glue cavity 46 (similar to a cylindrical structure) and a glue cavity 47 (similar to a cylindrical structure) and a glue cavity 48 (similar to a cylindrical structure) and a glue cavity 49 ... 2 connected inlet 41, outlet 43 and water inlet 44; the rear end member 50 has a rear end through hole 51; the driver is used to drive the middle member 40 to rotate; the water flow guide hole 33 can be connected with the water flow inlet 44; the water flow guide hole 33 and the water flow inlet 44 together form a water supply hole; the front end through hole 32 and the inlet 41 together form a penetration hole, and the rear end through hole 51 and the outlet 43 together form an outlet hole; the wire is sequentially inserted into the front end through hole 32, the inlet 41, the glue cavity 42, the outlet 43 and the rear end through hole 51. The front end member 30 and the rear end member 50 are fixed in position, and serve as a stable supporting structure of the entire coating mechanism. The two ends of the middle member 40 are rotatably connected to the front end member 30 and the rear end member 50 respectively. This connection mode enables the middle member 40 to rotate stably under the drive of the driver, which is conducive to the wire being able to always pass through each hole and the glue cavity 42 in the correct position during long-term operation, reducing problems such as uneven coating or damage of the wire caused by device shaking or component displacement.

[0052] Specifically, the colloid cavity 42 contains a colloid powder mixture, wherein the colloid may be a polyvinyl alcohol solution with a concentration (volume) of 5%. Those skilled in the art may also replace it with other colloids with higher viscosity. Poor fluidity can ensure that the colloid will not flow out from the inlet 41 and the outlet 43 due to gravity. The powder may be selected from suitable alloy powder or ceramic powder as needed.

[0053] In the optional scheme of this embodiment, it is more preferred that Figure 2 As shown, the apertures of the inlet 41 and the outlet 43 are the same, and the apertures of the front through hole 32 and the rear through hole 51 are the same; the aperture of the inlet 41 is larger than the diameter of the wire and smaller than the aperture of the front through hole 32. The design that the apertures of the inlet 41 and the outlet 43 are smaller than the apertures of the front through hole 32 and the rear through hole 51 can effectively reduce the leakage of the coating liquid from the inlet 41 and the outlet 43. Due to the fluidity of the coating liquid itself, it will not flow out from the inlet 41 and the outlet 43 even when the wire does not pass through. During the wire transmission process, since the coating liquid is mainly concentrated in the glue cavity 42, the relatively small aperture at the inlet 41 can form a structure similar to a "bottleneck", further preventing the coating liquid from leaking from the inlet 41 and the outlet 43; if the aperture is too large, part of the coating liquid may be exposed, resulting in waste; and the smaller aperture can also restrict the coating liquid on the wire, reducing the amount of coating liquid on the wire.

[0054] In the optional scheme of this embodiment, it is more preferred that the aperture of the inlet 41 is 120% of the diameter of the wire. If the wire is of the common 1.2mm diameter, the aperture of the inlet 41 should be 1.4mm; the inlet 41 with an aperture of 120% of the wire diameter can make the space of this annular area relatively reasonable, and the flow of the coating liquid will not be blocked due to the small aperture. In long-term operation, this reasonable flow space can ensure that the coating liquid continuously and stably wraps the wire, improving the coating quality.

[0055] In the optional scheme of this embodiment, it is more preferred that Figure 2 As shown, the front end member 30 and the middle member 40, as well as the rear end member 50 and the middle member 40, are rotatably connected via bearings. Connecting the front end member 30 and the middle member 40, as well as the rear end member 50 and the middle member 40 via bearings can ensure that the middle member 40 is accurately positioned during rotation, and the bearings can withstand radial and axial forces, so that the rotating shaft of the middle member 40 remains stable during long-term operation; the use of bearings greatly reduces the friction between the components.

[0056] Specifically, the driver for driving the middle component 40 to rotate is an existing device, including but not limited to the structural settings mentioned below, such as a gear is fixedly arranged on the outer wall of the middle component 40, the output end of the motor has rotating teeth, and the rotating teeth are meshed with the gears for transmission, thereby driving the rotation of the middle component 40; it can also be a gear, a pulley or any other driving structure that can realize the middle component 40; this is the existing technology and will not be described in detail here.

[0057] Among them, the relevant settings of the water delivery mechanism are as follows:

[0058] In the optional scheme of this embodiment, it is more preferred that a sealing device is further provided between the water flow guide hole 33 and the water flow inlet 44; the sealing device can keep the water flow inlet 44 closed when the water flow guide hole 33 and the water flow inlet 44 are not connected. The sealing device is provided between the water flow guide hole 33 and the water flow inlet 44. When the water flow guide hole 33 and the water flow inlet 44 are not connected, the sealing device can effectively close the water flow inlet 44, thereby reducing the outflow of the coating liquid from the water flow inlet 44; and can prevent external impurities, such as dust, metal chips, etc., from entering the glue cavity 42 to affect the quality of the coating liquid.

[0059] Specifically, the sealing device can be any existing device that can achieve connection or disconnection between the fixed part (front end part 30) and the rotating part (middle part 40), including but not limited to the structures mentioned below: if the sealing device is a sliding sealing rubber ring, which is arranged at the water inlet 44, when the water inlet 44 of the glue cavity 42 is not aligned with the water guide hole 33, it can ensure that there is no water leakage, and when the two holes are aligned, water can flow into the glue cavity 42 through the water inlet 44.

[0060] Specifically, when the particle gel coated wire material is used, the water supply pipe 31 delivers hot water, the temperature of which is not less than 80°C.

[0061] Among them, the relevant setting instructions for the drying mechanism:

[0062] In the optional scheme of this embodiment, it is more preferred that Figure 1 As shown, the drying mechanism includes an extension tube 60; the extension tube 60 has a drying channel running through it, one end of the extension tube 60 is fixedly connected to the rear end member 50, and the rear end through hole 51 is connected to the drying channel; the axis of the drying channel coincides with the wire transmission path, and a blowing inlet 62 is provided on the side wall of the extension tube 60, and the extension direction of the blowing inlet 62 is parallel to the wire transmission path. The wire in the longer drying channel can allow the compressed gas to more thoroughly take away the moisture or solvent in the coating liquid, so that the coating layer on the surface of the wire is dried more fully, effectively improving the drying effect and ensuring the wire coating quality.

[0063] Among them, about other related settings description:

[0064] In the optional scheme of this embodiment, it is more preferred that Figure 1 As shown, a wire receiving tube 20 is fixedly arranged on the side of the front end member 30 away from the middle member 40 and the side of the extension tube 60 away from the rear end member 50; the wire receiving tube 20 is used for passing the wire. The wire receiving tube 20 is arranged on both sides of the front end member 30 and the extension tube 60, respectively, to provide a longer distance guide for the wire, reduce the shaking and deviation of the wire, thereby ensuring that the wire accurately passes through the front end member 30 and passes out of the extension tube 60, so that the entire coating and drying process can be carried out stably.

[0065] Specifically, the corresponding position of the connection between the front end piece 30 and the wire feeding tube 20 is set as a threaded connection structure, and the corresponding position of the connection between the rear end piece 50 and the extension tube 60 is also set as a threaded connection structure.

[0066] Specifically, the water flow guide hole 33 on the front end member 30 and the corresponding position of the connection between the water supply pipe 31 are set as a threaded connection structure.

[0067] Specifically, the blowing pipe 61 is connected to the compressed gas cylinder.

[0068] Embodiment 2

[0069] This embodiment provides a wire coating method based on the wire coating device of embodiment 1, comprising the following steps:

[0070] S1, fully mixing the powder to be added with the colloid to form a coating liquid;

[0071] S2, placing the formed coating liquid in the glue chamber 42;

[0072] S3, according to the type and volume of the coating liquid, the water delivery amount in the water delivery pipe 31, the air flow in the blowing pipe 61 and the rotation speed of the glue chamber 42 are set; after checking that everything is correct, the water delivery pipe 31 is opened to deliver water, the blowing pipe 61 is opened to blow water, and the glue chamber 42 starts to rotate;

[0073] S4, the wire feeding mechanism is started, and the wire passes through the entry hole, the glue cavity 42, the exit hole and the drying channel in sequence, completing the wire coating operation.

[0074] Firstly, the powder and the colloid are fully mixed to form a coating liquid, which can ensure that the coating liquid has a uniform composition. In the long-term wire coating operation, a uniform coating liquid is the key to achieving stable coating quality on the wire surface. After the glue cavity 42 rotates, the coating liquid is in a good flow mixing state, water supply can maintain the stable flow of the coating liquid, and air blowing can promptly deal with subsequent drying problems. The whole process ensures the integrity and stability of the wire coating, so that the effect of the wire coating can remain stable and reliable during batch operations.

[0075] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A wire coating device, characterized in that: It includes a wire feeding mechanism, a coating mechanism, a water feeding mechanism and a drying mechanism; The wire feeding mechanism is used to guide the wire to move along a specified path; The coating mechanism has a rotating glue chamber, in which the coating liquid is contained; the glue chamber is also provided with an entry hole, an exit hole and a water supply hole connected thereto; the glue chamber is located on the transmission path of the wire, and the entry hole and the exit hole are used for threading the wire; The water delivery mechanism has a water delivery pipe, the end of which can be connected to the water filling hole; and the water delivery pipe is used to deliver water; The blowing mechanism comprises a blowing pipe, a blowing channel and a blowing inlet connected to the blowing channel; on the transmission path of the wire material, the blowing channel is located at the rear side of the glue cavity, and the wire material coated with the coating liquid enters the blowing channel after passing through the outlet hole; the end of the blowing pipe corresponds to the blowing inlet, and the blowing pipe is used to transport compressed gas.

2. The wire coating device according to claim 1, characterized in that: The coating mechanism comprises a front end member, a middle member, a rear end member and a driver; On the transmission path of the wire, the front end member is located at the front end of the middle member, and the rear end member is located at the rear end of the middle member; and the front end member and the rear end member are both fixed in position, and the two ends of the middle member are rotatably connected to the corresponding front end member and the rear end member respectively; The front end member is provided with a front end through hole and a water flow guide hole; The middle component comprises the rubber cavity and an inlet, an outlet and a water inlet communicated with the rubber cavity; The rear end member is provided with a rear end through hole; The driver is used to drive the middle component to rotate; The water flow guide hole can be connected to the water flow inlet; the water flow guide hole and the water flow inlet together form the water supply hole; The front through hole and the inlet together form the entry hole, and the rear through hole and the outlet together form the exit hole; The wire material is sequentially arranged in the front through hole, the inlet, the glue cavity, the outlet and the rear through hole.

3. The wire coating device according to claim 2, characterized in that: The apertures of the inlet and the outlet are the same, and the apertures of the front through hole and the rear through hole are the same; the aperture of the inlet is larger than the diameter of the wire and smaller than the aperture of the front through hole.

4. The wire coating device according to claim 3, characterized in that: The aperture of the inlet is 120% of the diameter of the wire.

5. The wire coating device according to claim 2, characterized in that: The drying mechanism comprises an extension tube; The extension tube has the drying passage passing through it, one end of the extension tube is fixedly connected to the rear end member, and the rear end through hole is connected to the drying passage; The axis of the drying channel coincides with the wire transmission path, and the blowing inlet is provided on the side wall of the extension tube, and the extending direction of the blowing inlet is parallel to the wire transmission path.

6. The wire coating device according to claim 5, characterized in that: A wire feeding tube is fixedly provided on a side of the front end member away from the middle member and a side of the extension tube away from the rear end member; The wire feeding tube is used for threading the wire.

7. The wire coating device according to claim 1, characterized in that: The wire feeding mechanism comprises a front wire feeder and a rear wire feeder; On the transmission path of the wire material, the front wire feeder is located at the front end of the coating mechanism, and the rear wire feeder is located at the rear end of the coating mechanism; The front wire feeder has two first wire feed wheels which are arranged opposite to each other and rotate; the rear wire feeder has two second wire feed wheels which are arranged opposite to each other and rotate; the space between the two first wire feed wheels and the space between the two second wire feed wheels are used for threading the wire.

8. The wire coating device according to claim 2, characterized in that: The front end member and the middle member as well as the rear end member and the middle member are rotatably connected via bearings.

9. The wire coating device according to claim 2, characterized in that: A sealing device is also provided between the water flow guide hole and the water flow inlet; The sealing device can keep the water flow inlet closed when the water flow guide hole is not connected to the water flow inlet.

10. A wire coating method based on the wire coating device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, fully mixing the powder to be added with the colloid to form a coating liquid; S2, placing the formed coating liquid in the glue cavity; S3, setting the water delivery volume in the water delivery pipe, the air flow volume in the blowing pipe and the rotation speed of the glue chamber according to the type and volume of the coating liquid; After checking that everything is correct, the water supply pipe is opened to supply water, and the air blowing pipe is opened to blow air, so that the rubber cavity starts to rotate; S4, starting the wire feeding mechanism, the wire passes through the entry hole, the glue cavity, the exit hole and the drying channel in sequence, and the wire coating operation is completed.

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