UV paint recovery equipment for paint spraying line

By designing UV paint recovery equipment for the paint spraying line and using a scraper and drainage trough system to recover the UV paint on the roller, the problems of paint waste and uneven paint surface during the spraying process were solved, and efficient paint recovery and reuse were achieved.

CN223440188UActive Publication Date: 2025-10-17NINGBO YUDONG AUTOMATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202422598212.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2025-10-17
Estimated Expiration
2034-10-25

AI Technical Summary

Technical Problem

The utilization rate of existing spray UV paint is low. Some UV paint drips from the gap between the conveying rollers during the spraying process and is wasted. It also sticks to the rollers, affecting the uniformity of the paint surface and the appearance of the furniture.

Method used

A UV paint recovery device for a painting line is designed, which includes a conveying device, a paint spraying device and a paint liquid recovery device. A scraper is used to scrape off the paint liquid adhering to the conveying roller and introduce it into a collection pool through a drainage trough and a confluence trough for recovery. The inclined surface and gravity are combined to achieve directional flow and centralized recovery of the paint liquid.

Benefits of technology

It improves the utilization rate of UV paint, avoids the waste of paint liquid in the gap between rollers, ensures the uniformity of the paint surface, and facilitates the subsequent filtration and reuse of the paint liquid.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223440188U_ABST
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Abstract

The utility model relates to paint spraying line UV paint recycling equipment, and belongs to the technical field of UV paint recycling. The paint spraying line UV paint recycling equipment comprises a conveying device which comprises a support and a plurality of conveying rolling shafts which are rotationally installed on the support and used for conveying objects; the paint spraying device comprises a protective cover mounted at the top of the bracket and a paint spraying head mounted in the protective cover and used for spraying paint on the surface of an object; and the paint liquid recovery device comprises a collection pool located below the multiple conveying rolling shafts and a scraping plate which is installed on the collection pool and used for scraping off the paint liquid adhering to the conveying rolling shafts and guiding the paint liquid into the collection pool. The UV paint collecting device has the effect of being capable of collecting UV paint located on the conveying rolling shafts.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of UV paint recycling, in particular to a UV paint recycling equipment for paint spraying line. BACKGROUND

[0002] The paint spraying line is a production line for spraying paint on parts. In industrial production, especially in the field of furniture, UV paint spraying is increasingly used for product surface treatment. In the UV paint spraying process, furniture is conveyed to the paint spraying station by a conveying roller device. The UV paint is sprayed at high speed by the paint spraying equipment towards the furniture on the conveying roller device. The furniture after paint spraying is conveyed to the next process by the conveying roller device.

[0003] However, the above-mentioned spraying method has low utilization rate of UV paint. A large part of the UV paint will drip from the gap between the adjacent two conveying rollers to the ground, causing waste. In the related art, a collection box is placed at the bottom of the conveying roller device to collect the UV paint falling between the adjacent two conveying rollers.

[0004] For the related art in the above, part of the UV paint will be sprayed on the conveying roller and stick to the side of the furniture close to the conveying roller during the spraying process, which will affect the entire paint surface when spraying on the side later, resulting in uneven paint surface on the side and affecting the appearance of the furniture. CONTENT OF THE INVENTION

[0005] In order to collect the UV paint on the conveying roller, the present application provides a UV paint recycling equipment for paint spraying line.

[0006] The UV paint recycling equipment for paint spraying line provided by the present application adopts the following technical scheme:

[0007] The UV paint recycling equipment for paint spraying line comprises a conveying device comprising a support and a plurality of conveying rollers rotatably installed on the support for conveying articles;

[0008] A paint spraying device comprising a protective cover installed on the top of the support and a paint spraying head installed inside the protective cover for spraying paint on the surface of the article;

[0009] A paint liquid recycling device comprising a collection pool located below the plurality of conveying rollers and a scraper installed on the collection pool for scraping the paint liquid adhered to the conveying rollers and draining it into the collection pool.

[0010] Preferably, one side of the scraper abuts against the outer wall of the conveying roller, and the other side extends obliquely towards the direction of the collection pool.

[0011] Preferably, the squeegee is provided with drainage grooves for guiding the paint, the extending direction of the drainage grooves is consistent with the tilting direction of the squeegee, and a plurality of the drainage grooves are arranged on the squeegee along the axial direction of the conveying roller.

[0012] Preferably, the side of the squeegee provided with the drainage grooves is provided with a flow collection groove for guiding the paint into the collection pool, the flow collection groove is located at one end of the drainage grooves close to the collection pool, and the plurality of drainage grooves are in communication with the flow collection groove.

[0013] Preferably, the middle part of the flow collection groove is provided with a liquid outlet groove for guiding the paint into the collection pool, the flow collection groove is a V-shaped groove, and the liquid outlet groove is located at the lowest part of the flow collection groove.

[0014] Preferably, the squeegee is provided with a connecting plate installed on the inner wall of the collection pool.

[0015] Preferably, the middle part of the collection pool is provided with a paint outlet, and a plunger is inserted into the paint outlet for shielding the paint outlet.

[0016] Preferably, the bottom of the collection pool is provided with an inclined surface for facilitating the flow of the paint to the paint outlet.

[0017] In summary, the present application has at least one of the following beneficial technical effects:

[0018] 1. When the conveying roller rotates to convey the painted objects, the squeegee scrapes off the UV paint remaining on the conveying roller, and due to the inclined arrangement of the squeegee, the paint on the squeegee flows into the collection pool under the action of gravity for unified recovery. In addition, part of the paint during the painting process also flows into the collection pool from the gap between the adjacent two conveying rollers for recovery.

[0019] 2. The arrangement of the drainage grooves enables the paint scraped off from the conveying roller to be directionally drained. The paint in the plurality of drainage grooves is collected in the flow collection groove, and then directionally and concentratedly flows into the collection pool through the liquid outlet groove, so that the paint on the conveying roller is not easily splashed everywhere during recovery.

[0020] 3. After the paint scraped off by each squeegee flows into the collection pool, it flows towards the paint outlet under the action of the inclined surface and gravity. When the work is completed, the staff can pull out the plunger to open the paint outlet, and then the paint flows into the collection tank for filtration to facilitate repeated use in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall structure schematic diagram of the UV paint recovery equipment in the embodiment of the present application.

[0022] Figure 2 is a schematic view of the cooperation structure of the conveying device and the paint recovery device in the embodiment of the present application.

[0023] Figure 3 is an exploded schematic view of the paint spraying device in the embodiment of the present application.

[0024] Figure 4 is a schematic view of the structure of the squeegee in the embodiment of the present application.

[0025] Figure 5 is a schematic view of the structure of the collection pool in the embodiment of the present application.

[0026] Legend: 1, conveying device; 11, support; 12, conveying roller; 2, paint spraying device; 21, protective cover; 22, linear module; 23, paint spraying head; 3, paint recovery device; 31, collection pool; 311, support leg; 312, paint discharge port; 313, plunger; 314, inclined surface; 32, squeegee; 321, drainage groove; 322, flow collection groove; 323, liquid outlet groove; 33, connecting plate. DETAILED DESCRIPTION

[0027] The following will be described in detail with reference to the accompanying drawings. Figures 1-5 The present application will be further described in detail.

[0028] The embodiment of the present application discloses a paint spraying line UV paint recovery equipment. Referring to Figure 1 and Figure 2 , the paint spraying line UV paint recovery equipment comprises a conveying device 1, a paint spraying device 2 and a paint recovery device 3. The conveying device 1 comprises a support 11 and a plurality of conveying rollers 12 rotatably installed on the support 11 for conveying articles, and the paint spraying device 2 is installed on the top of the support 11 for spraying UV paint on the surface of the articles. The recovery device is used for recovering the paint dripping from the gap between two adjacent conveying rollers 12, and can also recover the paint adhering to the conveying rollers 12.

[0029] The conveying rollers 12 are provided in plurality, the plurality of conveying rollers 12 are arranged at intervals along the length direction of the support 11, and the plurality of conveying rollers 12 are rotatably installed on the support 11. The plurality of conveying rollers 12 are connected by a ring chain to realize synchronous rotation, a driving motor is installed on the support 11, the driving motor drives one of the conveying rollers 12 to rotate, thereby realizing driving the plurality of conveying rollers 12 to rotate to convey the articles.

[0030] Referring to Figure 1 and Figure 3The paint spraying device 2 includes a protective cover 21, a linear module 22, and a paint spraying head 23. The protective cover 21 is welded to the top of the bracket 11, the linear module 22 is fixedly installed inside the protective cover 21, and the paint spraying head 23 is installed on a slider in the linear module 22. Driven by the linear module 22, the paint spraying head 23 moves perpendicular to the direction of object conveyance, thereby allowing the paint spraying head 23 to evenly spray the paint liquid on the surface of the object during movement.

[0031] Suppose a linear module 22 and a paint spray head 23 form a set of paint spray components, then multiple sets of paint spray components are provided, and the multiple sets of paint spray components are arranged at intervals along the conveying direction of the object in the protective cover 21, thereby realizing multiple spraying of the object, so that each position on the surface of the object is sprayed with paint liquid.

[0032] Reference Figure 1 and Figure 2 The paint liquid recovery device 3 includes a collection pool 31 and a scraper 32. The collection pool 31 is located below the conveying roller 12, and the multiple conveying rollers 12 are all located within the range of the collection pool 31. The collection pool 31 can cover the gaps between the multiple conveying rollers 12, so that the paint liquid that is not attached to the surface of the object can flow into the collection pool 31 and be collected. The scraper 32 is installed on the collection pool 31 to scrape off the paint liquid adhering to the conveying roller 12 and drain it into the collection pool 31. Since there are multiple conveying rollers 12, there are also multiple scrapers 32. The number of scrapers 32 is consistent with the number of conveying rollers 12 and corresponds one to one. The following is an example of the cooperation between a water conveying roller and a scraper 32.

[0033] Reference Figure 2 and Figure 4 Two connecting support plates 33 are welded to the side of the scraper 32 closest to the collection tank 31. These two connecting support plates 33 are spaced apart and bolted to two opposing inner walls of the collection tank 31. One side of the scraper 32 abuts the outer wall of the conveyor roller 12, while the other side extends obliquely toward the collection tank 31. That is, the height from the side of the scraper 32 closest to the conveyor roller 12 to the bottom of the collection tank 31 is higher than the height from the side of the scraper 32 farther from the conveyor roller 12 to the bottom of the collection tank 31. This facilitates scraping paint liquid off the conveyor roller 12 and draining it into the collection tank 31.

[0034] The scraping plate 32 is provided with a flow guide groove 321 and a flow collection groove 322, the flow guide groove 321 is communicated with the flow collection groove 322, paint in the flow guide groove 321 will flow into the flow collection groove 322, and then flow into the collection pool 31. The flow guide groove 321 extends along the inclined direction of the scraping plate 32, and the end of the flow guide groove 321 close to the conveying roller 12 penetrates the scraping plate 32 along the extension direction of the flow guide groove 321, so that the paint on the conveying roller 12 can be scraped into the flow guide groove 321 for directional flow. A plurality of flow guide grooves 321 are arranged along the axial direction of the conveying roller 12, so that the paint scraped from each position of the conveying roller 12 can be guided correspondingly. The flow collection groove 322 is located at the end of the flow guide groove 321 away from the conveying roller 12, and the plurality of flow guide grooves 321 are communicated with the flow collection groove 322. In this embodiment, the flow collection groove 322 is a V-shaped groove, so that the paint in the plurality of flow guide grooves 321 will be collected at the lowest part of the flow collection groove 322 under the action of gravity. The lowest part of the flow collection groove 322 is provided with a liquid outlet groove 323, the liquid outlet groove 323 extends along the inclined direction of the scraping plate 32, and the end of the liquid outlet groove 323 away from the flow guide groove 321 penetrates the scraping plate 32, so that the paint in the flow collection groove 322 can flow into the collection pool 31 for recycling.

[0035] Referring to Figure 4 The bottom of the collection pool 31 is provided with a supporting leg 311, and the collection pool 31 is spaced apart from the ground by the supporting leg 311. The middle position of the bottom of the collection pool 31 is provided with a paint outlet 312, and the paint outlet 312 is inserted with a plunger 313. The plunger 313 blocks the paint outlet 312. When the paint is being sprayed, the collected paint can be stored in the collection pool 31 by blocking the paint outlet 312 with the plunger 313. When the spraying work is completed, the worker can place a collection barrel at the bottom of the collection pool 31 below the paint outlet 312, and then pull out the plunger 313, so that the paint in the collection pool 31 flows into the collection barrel through the paint outlet 312, thereby facilitating the worker to filter the paint in the collection barrel later.

[0036] The bottom of the collection pool 31 is provided with two inclined surfaces 314, and the two inclined surfaces 314 are symmetrically arranged about the paint outlet 312 along the conveying direction of the articles, so that the paint outlet 312 is located at the lowest part of the two inclined surfaces 314, and the paint falling into the collection pool 31 can be collected at the position of the paint outlet 312.

[0037] The implementation principle of the UV paint recycling equipment of the paint spraying line is that part of the paint will also flow into the collection pool 31 from the gap between the adjacent two conveying rollers 12 during spraying to be recycled.

[0038] Secondly, when the conveying roller 12 rotates to convey the painted article, the scraper 32 can scrape off the UV paint remaining on the conveying roller 12, the paint can be directionally drained under the action of the drainage groove 321, the paint in the plurality of drainage grooves 321 can be collected in the flow collecting groove 322, and then directionally and concentratedly flow into the collecting pool 31 through the liquid outlet groove 323 for unified recovery.

[0039] Finally, the paint scraped off by each scraper 32 flows and collects toward the paint outlet 312 under the action of the inclined surface 314 and gravity after entering the collecting pool 31, when the work is completed, the staff can pull out the plunger 313 to open the paint outlet 312, and then the paint flows into the collecting barrel to be filtered for later reuse.

[0040] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A UV paint recovery device for a paint spraying line, characterized in that: include: A conveying device (1) comprises a support (11) and a plurality of conveying rollers (12) rotatably mounted on the support (11) for conveying articles; A paint spraying device (2) comprising a protective cover (21) mounted on the top of the bracket (11) and a paint spraying head (23) mounted inside the protective cover (21) for spraying paint on the surface of an object; The paint liquid recovery device (3) comprises a collection pool (31) located below the plurality of conveying rollers (12) and a scraper (32) installed on the collection pool (31) for scraping off the paint liquid adhering to the conveying rollers (12) and draining the paint liquid into the collection pool (31).

2. The UV paint recovery equipment for a paint spraying line according to claim 1, characterized in that: One side of the scraper (32) abuts against the outer wall of the conveying roller (12), and the other side extends obliquely toward the collecting pool (31).

3. The UV paint recovery equipment for a paint spraying line according to claim 2, characterized in that: The scraper (32) is provided with a drainage groove (321) for draining the paint liquid. The extension direction of the drainage groove (321) is consistent with the inclination direction of the scraper (32). A plurality of drainage grooves (321) are provided. The plurality of drainage grooves (321) are arranged on the scraper (32) at intervals along the axial direction of the conveying roller (12).

4. The UV paint recovery equipment for a paint spraying line according to claim 3, characterized in that: A confluence groove (322) is provided on one side of the scraper (32) where the drainage groove (321) is provided, for allowing the paint liquid to flow into the collection pool (31). The confluence groove (322) is located at one end of the drainage groove (321) close to the collection pool (31), and a plurality of the drainage grooves (321) are connected to the confluence groove (322).

5. The UV paint recovery equipment for a paint spraying line according to claim 4, characterized in that: A liquid outlet groove (323) is provided in the middle of the confluence groove (322) for allowing the paint liquid to flow into the collection pool (31). The confluence groove (322) is a V-shaped groove, and the liquid outlet groove (323) is located at the lowest point of the confluence groove (322).

6. The UV paint recovery equipment for a paint spraying line according to claim 1, characterized in that: The scraper (32) is provided with a connecting support plate (33), and the connecting support plate (33) is installed on the inner wall of the collection tank (31).

7. The UV paint recovery equipment for a paint spraying line according to claim 1, characterized in that: A paint liquid discharge outlet (312) is provided in the middle of the collection tank (31), and a plunger (313) is inserted into the paint liquid discharge outlet (312) to block the paint liquid discharge outlet (312).

8. The UV paint recovery equipment for a paint spraying line according to claim 7, characterized in that: The bottom of the collection pool (31) is provided with an inclined surface (314) that facilitates the paint liquid to flow to the paint liquid discharge port (312).