Accurate metering paint supply device for vertical enameling machine
By introducing a high-precision metering pump and flow monitor into the vertical enameling machine, combined with a fine filtration reflux device, the problems of uneven coating of insulating varnish and VOC emissions were solved, achieving efficient utilization of insulating varnish and improved product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CANGZHOU LINGANG TIANZHAO ELECTRIC WIRE CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-10
Smart Images
Figure CN224480839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of enameled wire coating technology, and in particular to a precise metering coating device for a vertical enameling machine. Background Technology
[0002] A conductor enamel supply device is a support device for pumping enamel onto enameled conductors. The task of enamel coating is not only to apply enamel to the surface of the conductor but also to apply it evenly and to a certain thickness, thus performing a coating process on the surface of the enameled conductor.
[0003] With the continuous development of technology, the power of downstream products of enameled wire (such as motors) is increasing, leading to higher requirements from downstream customers for the thermal performance of enameled wire. Simultaneously, as the nation places increasing emphasis on environmental protection, the requirements for VOC emissions in the use of hazardous chemicals are becoming increasingly stringent. Currently, high-heat-resistant insulating varnishes are made of polyamide-imide and polyimide. Due to their molecular structure, they are prone to moisture absorption. Prolonged exposure to air not only reduces the pass rate of enameled wire products due to moisture absorption, increasing costs, but also increases VOC emissions, impacting the environmental protection of manufacturing enterprises.
[0004] However, existing paint supply devices cannot accurately measure the delivery of insulating varnish. Generally, the flow rate is controlled by employees through manual valves. The current equipment situation results in the conductor passing through a large amount of downstream insulating varnish from bottom to top during the painting process. Because the flow rate of downstream insulating varnish in each pass cannot be accurately controlled, a large amount of insulating varnish waiting to be returned often exists in the paint tank. Therefore, long-term exposure to air will cause it to absorb moisture, affecting product quality and bringing certain adverse effects to the actual use process. To address this, we propose a precise metering paint supply device for vertical enameling machines. Utility Model Content
[0005] Technical problems solved: 1) To address the shortcomings of existing technologies, this utility model provides a precise metering and varnish supply device for a vertical enameling machine. By equipping the coating device with a high-precision metering pump and a flow monitor, the use of insulating varnish is precisely controlled, reducing the storage time of the insulation in the varnish tank, i.e., reducing the contact time between the varnish and the air; 2) Through precise metering, the amount of insulating varnish exposed to the air per unit time is minimized, reducing VOC emissions during the use of the insulating varnish; 3) Precise metering ensures the consistency of the insulating varnish flow rate during production, avoiding problems with the control of the insulation thickness and uniformity of the enameled wire caused by changes in flow rate.
[0006] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: A precise metering paint supply device for a vertical enameling machine, comprising an additive cylinder, a paint cylinder, a paint tank, a painting device, a fine filter assembly, and a mixer. The painting device includes a high-precision metering pump and a flow monitor, which are located above the paint tank and together within the painting chamber of the enameling machine. The bottom of the additive cylinder and the paint cylinder are connected to the mixer. A paint supply pipe is connected between the mixer and the painting device. A paint supply pump is positioned in the middle of the paint supply pipe. A stirring motor is installed on the side of the mixer.
[0007] Preferably, a first high-precision paint dispensing control pump is connected between the additive cylinder and the mixer, and a second high-precision paint dispensing control pump is connected between the paint cylinder and the mixer. A first paint dispensing flow monitor is installed at the first high-precision paint dispensing control pump, and a second paint dispensing flow monitor is installed at the second high-precision paint dispensing control pump. Both the first and second paint dispensing flow monitors are connected to a paint dispensing flow display device.
[0008] Preferably, the bottom of the paint tank is connected to an output pipe, the end of the output pipe is connected to a fine filter assembly, a return pipe is connected between the fine filter assembly and the paint cylinder, and a return pump is installed in the middle of the return pipe.
[0009] Preferably, the flow rate between the additive cartridge and the mixer is controlled by a first high-precision paint dispensing control pump and monitored by a first paint dispensing flow rate monitor, and the flow rate between the paint cartridge and the mixer is controlled by a second high-precision paint dispensing control pump and monitored by a second paint dispensing flow rate monitor.
[0010] Preferably, the output end of the paint tank is connected to the input end of the fine filter assembly through an output pipe, and the reflux pump pumps the filtered liquid inside the fine filter assembly into the interior of the mixer.
[0011] Preferably, the liquid inside the additive cylinder and the paint cylinder is mixed by a mixer and then pumped into the paint coating device by a paint supply pump. The amount of insulating paint used is precisely controlled by a high-precision metering pump on the paint coating device and monitored by a flow monitor.
[0012] Beneficial Effects: Compared with the prior art, this utility model provides a precise metering varnish supply device for a vertical enameling machine, which has the following beneficial effects: 1) By equipping the coating device with a high-precision metering pump and flow monitor, the use of insulating varnish is precisely controlled, reducing the storage time of the insulation in the varnish tank, i.e., reducing the contact time between the varnish and air, thus solving the problem of moisture absorption and increased VOC emissions due to long-term exposure of the insulating varnish; 2) It can precisely control the flow rate of insulating varnish per unit time, which is beneficial to the process control of enameled wire production and ensures the stability of the thickness and uniformity of the insulating varnish; 3) It is equipped with a high-precision mixing varnish supply device and a fine filtration reflux device, which can facilitate better control of the insulating varnish. The insulating varnish and additives are mixed and fed with high precision, and the flow rate is precisely controlled. This also facilitates the recycling, filtration, and reuse of the insulating varnish, solving the problem of easy contamination of the insulating varnish. The liquid inside the additive cylinder and the varnish cylinder is pumped into the mixer with high precision by the first and second high-precision varnish control pumps, respectively. The mixture is then pumped into the coating device by the varnish supply pump. The coating device coats the mixed insulating varnish onto the conductor surface. After the insulating varnish is used up, it flows back into the varnish tank and is further filtered by the fine filtration component before flowing back into the mixer. The entire conductor varnish supply device has a simple structure, is easy to operate, and has better performance than traditional methods. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a precision metering paint supply device for a vertical enameling machine according to this utility model.
[0014] Figure 2 This is a schematic diagram of the paint supply process of the additive cylinder and paint cylinder in a precision metering paint supply device for a vertical enameling machine according to this utility model.
[0015] Figure 3 This is a schematic diagram of the fine filter component in a precision metering paint supply device for a vertical enameling machine according to this utility model.
[0016] Figure 4 This is a schematic diagram of the mixer in a precision metering paint supply device for a vertical enameling machine according to this utility model.
[0017] In the diagram: 1. Additive container; 2. Paint container; 3. Stirring motor; 4. Mixer; 5. Return pipe; 6. Return pump; 7. Fine filter assembly; 8. Output pipe; 9. Paint tank; 10. Painting device; 11. High-precision metering pump; 12. Flow monitor; 13. Paint supply pipe; 14. Paint supply pump; 15. First high-precision paint discharge control pump; 16. Second high-precision paint discharge control pump; 17. Paint discharge flow display device; 18. First paint discharge flow monitor; 19. Second paint discharge flow monitor. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] like Figure 1-4 As shown, a precision metering and supply device for a vertical enameling machine includes an additive cylinder 1, a paint cylinder 2, a paint tank 9, a coating device 10, a fine filter assembly 7, and a mixer 4. The coating device 10 includes a high-precision metering pump 11 and a flow monitor 12, which are located above the paint tank 9 and together within the coating chamber of the enameling machine. The bottom of the additive cylinder 1 and the paint cylinder 2 are connected to the mixer 4. A paint supply pipe 13 connects the mixer 4 and the coating device 10. A paint supply pump 14 is positioned in the middle of the paint supply pipe 13. A stirring motor 3 is installed on the side of the mixer 4. This solution, by incorporating a precision metering device and a fine filter reflux device, facilitates and improves the high-precision mixing and feeding of insulating varnish and additives, enables precise flow control, solves the problems of short storage time and easy moisture absorption of insulating varnish, and also facilitates the recycling, fine filtration, and reuse of insulating varnish, thus solving the problem of easy contamination of insulating varnish.
[0022] Furthermore, a first high-precision paint dispensing control pump 15 is connected between the additive cylinder 1 and the mixer 4, and a second high-precision paint dispensing control pump 16 is connected between the paint cylinder 2 and the mixer 4. A first paint dispensing flow monitor 18 is installed at the first high-precision paint dispensing control pump 15, and a second paint dispensing flow monitor 19 is installed at the second high-precision paint dispensing control pump 16. Both the first paint dispensing flow monitor 18 and the second paint dispensing flow monitor 19 are connected to a paint dispensing flow display device 17.
[0023] Furthermore, the bottom of the paint tank 9 is connected to an output pipe 8, the end of the output pipe 8 is connected to a fine filter assembly 7, the fine filter assembly 7 is connected to the paint cylinder 2 by a return pipe 5, and a return pump 6 is installed in the middle of the return pipe 5.
[0024] Furthermore, the flow rate between the additive cartridge 1 and the mixer 4 is controlled by the first high-precision paint dispensing control pump 15 and monitored by the first paint dispensing flow rate monitor 18, while the flow rate between the paint cartridge 2 and the mixer 4 is controlled by the second high-precision paint dispensing control pump 16 and monitored by the second paint dispensing flow rate monitor 19.
[0025] Furthermore, the output end of the paint tank 9 is connected to the input end of the fine filter assembly 7 through the output pipe 8, and the return pump 6 pumps the filtered liquid inside the fine filter assembly 7 into the interior of the mixer 4.
[0026] Furthermore, the liquids inside the additive cylinder 1 and the paint cylinder 2 are mixed by the mixer 4 and then pumped into the paint coating device 10 by the paint supply pump 14. The amount of insulating paint used is precisely controlled by the high-precision metering pump 11 on the paint coating device 10 and monitored by the flow monitor 12.
[0027] Working principle: This utility model includes an additive cylinder 1, a paint cylinder 2, a stirring motor 3, a mixer 4, a return pipe 5, a return pump 6, a fine filter assembly 7, an output pipe 8, a paint tank 9, a painting device 10, a high-precision metering pump 11, a flow monitor 12, a paint supply pipe 13, a paint supply pump 14, a first high-precision paint discharge control pump 15, a second high-precision paint discharge control pump 16, a paint discharge flow display device 17, a first paint discharge flow monitor 18, and a second paint discharge flow monitor 19. In use, the liquid inside the additive cylinder 1 and the paint cylinder 2 is pumped into the mixer 4 through the first high-precision paint discharge control pump 15 and the second high-precision paint discharge control pump 16 respectively. The insulating varnish is mixed inside the mixer 4 and pumped into the coating device 10 by the paint supply pump 14. The amount of insulating varnish used is precisely controlled by the high-precision metering pump 11 on the coating device 10 and monitored by the flow monitor 12. After the insulating varnish is used up, it flows back into the paint tank 9 and is then filtered by the fine filter assembly 7 before flowing back into the mixer 4. By having a precise metering device and a fine filter return device, it is possible to facilitate and better mix and feed the insulating varnish and additives with high precision, and to control the flow rate accurately. This solves the problems of short storage time and easy moisture absorption of insulating varnish. It also facilitates the recycling, fine filtration and reuse of insulating varnish, and solves the problem of easy contamination of insulating varnish.
[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A precision metering paint supply device for a vertical enameling machine, comprising an additive cylinder (1), a paint cylinder (2), a paint tank (9), a painting device (10), a fine filter assembly (7), and a mixer (4), wherein the painting device (10) includes a high-precision metering pump (11) and a flow monitor (12), which are located above the paint tank (9) and together within the painting chamber of the enameling machine, characterized in that, The bottom of the additive cylinder (1) and the paint cylinder (2) are connected to a mixer (4), and a paint supply pipe (13) is connected between the mixer (4) and the paint coating device (10). A paint supply pump (14) is positioned in the middle of the paint supply pipe (13), and a stirring motor (3) is installed on the side of the mixer (4).
2. The precise metering and paint supply device for a vertical enameling machine according to claim 1, characterized in that: A first high-precision paint control pump (15) is connected between the additive cylinder (1) and the mixer (4), and a second high-precision paint control pump (16) is connected between the paint cylinder (2) and the mixer (4). A first paint flow monitor (18) is installed at the first high-precision paint control pump (15), and a second paint flow monitor (19) is installed at the second high-precision paint control pump (16). Both the first paint flow monitor (18) and the second paint flow monitor (19) are connected to a paint flow display device (17).
3. The precise metering and paint supply device for a vertical enameling machine according to claim 1, characterized in that: The bottom of the paint tank (9) is connected to an output pipe (8), the end of the output pipe (8) is connected to a fine filter assembly (7), the fine filter assembly (7) is connected to a reflux pipe (5) between the mixer (4), and a reflux pump (6) is installed in the middle of the reflux pipe (5).
4. The precise metering and paint supply device for a vertical enameling machine according to claim 2, characterized in that: The flow rate between the additive cylinder (1) and the mixer (4) is controlled by the first high-precision paint control pump (15) and monitored by the first paint flow rate monitor (18). The flow rate between the paint cylinder (2) and the mixer (4) is controlled by the second high-precision paint control pump (16) and monitored by the second paint flow rate monitor (19).
5. A precise metering paint supply device for a vertical enameling machine according to claim 3, characterized in that: The output end of the paint tank (9) is connected to the input end of the fine filter assembly (7) through the output pipe (8), and the reflux pump (6) pumps the filtered liquid inside the fine filter assembly (7) into the mixer (4).
6. The precise metering and paint supply device for a vertical enameling machine according to claim 1, characterized in that: The liquid inside the additive cylinder (1) and paint cylinder (2) is mixed by the mixer (4) and then pumped into the paint coating device (10) by the paint supply pump (14). The amount of insulating paint used is precisely controlled by the high-precision metering pump (11) on the paint coating device (10) and monitored by the flow monitor (12).