Spraying device for high-gloss gift bag production

By incorporating a mixing and filtering component into the spraying device, the problem of nozzle clogging caused by varnish sedimentation, clumping, and impurities was solved, achieving uniform gloss and spraying stability, thus improving the quality of gift bags and reducing maintenance costs.

CN224167808UActive Publication Date: 2026-04-28ZHEJIANG ZHUNDIAN PRINTING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHUNDIAN PRINTING TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing high-gloss gift bag production spraying equipment is prone to sedimentation, clumping, and layering during the storage and transportation of varnish, resulting in uneven gloss and easy contamination of impurities, causing nozzle clogging and affecting spraying efficiency and product quality.

Method used

The spraying device incorporates a mixing and filtering assembly within its casing. The mixing assembly ensures uniform varnish distribution, while the filtering assembly removes impurities. Combined with the pump and spraying assembly, this achieves uniform delivery and filtration of the varnish, preventing nozzle clogging.

Benefits of technology

This ensures the uniformity and stability of the varnish composition and concentration, preventing varnish sedimentation, clumping, and impurities from entering the spray nozzle, thus improving the quality and aesthetics of the gift bags, reducing equipment maintenance costs, and guaranteeing the continuity and stability of the spraying operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spraying device for high-gloss gift bag production, which comprises a spraying room, a roller conveyor for conveying gift bag products is arranged below the inner side of the spraying room, and a spraying mechanism for spraying the gift bag products conveyed on the roller conveyor is arranged at the top of the spraying room. The spraying mechanism is provided with a box body, the box body is provided with a spraying assembly used for spraying gift bag products conveyed on the roller type conveyor, and the two sides of the interior of the box body are provided with a first stirring assembly and a second stirring assembly which are used for stirring gloss oil in the box body respectively. According to the utility model, the uniformity and stability of gloss oil components and concentration are effectively ensured, the situation of local gloss difference of the gloss oil sprayed on gift bag products caused by the phenomena of precipitation, caking, layering and the like of the gloss oil is avoided, and the situation that the caked gloss oil blocks the spray head is also effectively avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of spray coating equipment for gift bag production, specifically a spray coating device for producing high-gloss gift bags. Background Technology

[0002] In the modern packaging industry, high-gloss gift bags are widely used in gift-giving and product display due to their beautiful appearance and high-end texture. The spraying process, as a key step in giving gift bags a high-gloss effect, directly affects the surface quality and visual effect of the gift bags.

[0003] A search revealed that patent publication number CN212596569U discloses a spraying device for producing aluminized bags, comprising a frame, support legs, reinforcing plates, a defective product storage rack structure, an L-shaped support arm, a spraying baffle frame structure, connecting pipes, a spraying head, a water pump, a discharge pipe, a bracket, a rapid drying rack structure, driven rollers, a conveyor belt, a drive motor, and driving rollers. The support legs are welded to the four lower corners of the frame; the reinforcing plates are welded to the connection between the frame and the support legs; the defective product storage rack structure is bolted to the right side of the support legs; and the L-shaped support arm is bolted to the left rear end of the frame. The beneficial effect of this invention is that the baffle plate effectively blocks the paint sprayed from the spraying head from both sides, preventing paint from spraying outside the equipment, which is not only difficult to clean but also wastes paint.

[0004] Existing high-gloss gift bag production spraying equipment suffers from uneven varnish concentration during storage due to the inherent properties of the varnish's composition. This uneven concentration leads to variations in the gloss of the gift bag surface, resulting in localized dullness or uneven coating thickness. This severely impacts the overall quality and aesthetics of the gift bag. Furthermore, dust, impurities, and other foreign matter may contaminate the varnish during storage and transportation. These impurities can easily clog the nozzles, reducing spraying efficiency and increasing maintenance costs due to frequent nozzle cleaning and repair. Clogged nozzles can also interrupt spraying, causing surface defects and lowering the product yield. Therefore, a high-gloss gift bag production spraying device is designed. Utility Model Content

[0005] In view of the defects or deficiencies of the spraying device used in the production of high-gloss gift bags, the purpose of this utility model is to provide a spraying device for the production of high-gloss gift bags, which not only effectively ensures the uniformity and stability of the composition and concentration of the varnish, but also effectively avoids the occurrence of varnish clumping and clogging of the nozzle.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a high-gloss gift bag production spraying device, including a spraying chamber, a roller conveyor for conveying gift bag products is provided on the lower inner side of the spraying chamber, and a spraying mechanism for spraying the gift bag products conveyed on the roller conveyor is provided on the top of the spraying chamber.

[0008] The spraying mechanism is equipped with a housing, and the housing is equipped with a spraying assembly for spraying the gift bag products conveyed on the roller conveyor. Inside the housing, on both sides, are a first stirring assembly and a second stirring assembly for stirring the varnish inside the housing. A connecting pipe is located on the lower part of one inner wall of the housing, and one end of the connecting pipe is equipped with a filter end cap for filtering and blocking impurities in the varnish. The filter end cap and the connecting pipe are connected by a threaded connection. Below the second stirring assembly is a cleaning assembly for cleaning the filter end cap. The spraying mechanism is equipped with a geared motor for driving the second stirring assembly, the first stirring assembly, and the spraying assembly to rotate. The spraying mechanism is also equipped with a pump for transporting the varnish inside the housing to the spraying assembly.

[0009] Preferably, the box is installed on the top of the spray booth, the top of the box is covered, a discharge pipe is provided on the lower side of one outer wall of the box, a valve body is provided on the discharge pipe, and the interior of the discharge pipe is connected to the interior of the connecting pipe.

[0010] Preferably, the spraying assembly is provided with a hollow rotating shaft. The bottom end of the hollow rotating shaft extends through a sealed bearing at the center of the partition surface, a sealed bearing at the center of the bottom of the housing, and a sealed bearing at the center of the top of the spray booth, extending to the inside of the spray booth and connected to the spray nozzle via a branch pipe. The partition is located above the interior of the hollow column, and a rigid tube is installed inside the sealed bearing above the interior of the hollow rotating shaft.

[0011] Preferably, both the first stirring assembly and the second stirring assembly are provided with a first rotating shaft. One end of the first rotating shaft on both the first stirring assembly and the second stirring assembly extends through the sealed bearing on the outer wall of the hollow column into the interior of the hollow column and is connected to a bevel gear. The bevel gear on one end of the first rotating shaft meshes with the bevel gear on the circumferential outer wall of the hollow rotating shaft.

[0012] Preferably, a stirring rod is provided on the outer wall of the first rotating shaft, and the stirring rod is located inside the box. The other end of the first rotating shaft on the first stirring assembly passes through the sealed bearing on the outer wall of the other side of the box and extends to the outside to connect with the bevel gear. The other end of the first rotating shaft on the second stirring assembly passes through the sealed bearing on the outer wall of one side of the box and extends to the outside.

[0013] Preferably, the cleaning assembly is provided with a second rotating shaft, one end of which is equipped with a scraper, and the outer wall of the scraper contacts the outer wall of the filter end cover. The other end of the second rotating shaft passes through the sealed bearing on the outer wall of the hollow column and extends into the interior of the hollow column to connect with a bevel gear. The bevel gear on the other end of the second rotating shaft meshes with the bevel gear on the circumferential outer wall of the hollow rotating shaft.

[0014] Preferably, the inlet end of the pump body is connected to the outlet pipe via a pipe joint, and the outlet end of the pump body is connected to a rigid pipe via a conveying pipe. The pump body is installed on one side of the top of the spray booth.

[0015] Preferably, a bevel gear is installed on the output shaft of the geared motor, and the bevel gear on the geared motor meshes with the bevel gear on the other end of the first rotating shaft of the first mixing assembly. The geared motor is installed on the other side of the top of the spray booth.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] In this invention, through a series of coordinated structural arrangements, when the equipment sprays varnish onto gift bags conveyed by the roller conveyor, the geared motor and pump body start. The pump body then pumps the varnish inside the housing sequentially through the conveying pipe, rigid pipe, hollow rotating shaft, and branch pipe to the nozzle, from which it is sprayed onto the surface of the gift bag. The geared motor then drives the first stirring component, the second stirring component, the cleaning component, and the spraying component to rotate. The rotation of the first and second stirring components stirs the varnish inside the housing, thus effectively ensuring that the varnish composition and concentration are uniform and stable. This avoids the occurrence of sedimentation, clumping, and layering of the varnish, which could lead to localized differences in gloss on the gift bag, thereby improving the quality and aesthetics of the gift bag.

[0018] In this invention, through a series of coordinated structural designs, before the varnish inside the housing enters the pump body, the filter end cap on the connecting pipe filters and blocks foreign objects such as clumps, impurities, and particles in the varnish. This effectively prevents foreign objects such as clumps, impurities, and particles in the varnish from entering the nozzle and causing nozzle clogging, reducing the frequency of downtime for cleaning and maintenance due to nozzle clogging, and significantly reducing equipment maintenance costs. At the same time, the service life of the nozzle is extended, ensuring the continuity and stability of the spraying operation.

[0019] In this invention, through a series of coordinated structural arrangements, when the cleaning component rotates, the scraper on the cleaning component will scrape off the clumps, impurities, particles and other foreign objects filtered on the filter end cover, thus preventing the clumps, impurities, particles and other foreign objects from clogging the filter end cover. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 2 .

[0023] Figure 3 This is a schematic diagram of the installation structure between the spray booth and the spray booth mechanism of this utility model.

[0024] Figure 4 This is a schematic diagram of the spraying mechanism of this utility model.

[0025] Figure 5 This is a cross-sectional view of the spraying mechanism of this utility model.

[0026] Figure 6 This is a utility model Figure 5 A magnified schematic diagram of the structure at point A in the diagram.

[0027] In the picture:

[0028] 100. Roller conveyor;

[0029] 200. Spray painting booth;

[0030] 300. Spraying mechanism; 310. Box body; 311. Top cover; 312. Hollow column; 313. Partition; 314. Discharge pipe; 315. Connecting pipe; 316. Filter end cap; 320. Spraying assembly; 321. Rigid pipe; 322. Hollow rotating shaft; 323. Branch pipe; 324. Spray nozzle; 330. Pump body; 340. Gear motor; 350. First stirring assembly; 360. Second stirring assembly; 361. Stirring rod; 362. First rotating shaft; 370. Cleaning assembly; 371. Second rotating shaft; 372. Scraper. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] like Figure 1-6 As shown, a high-gloss gift bag production spraying device includes a spraying chamber 200, a roller conveyor 100 for conveying gift bag products is provided on the lower inner side of the spraying chamber 200, and a spraying mechanism 300 for spraying the gift bag products conveyed on the roller conveyor 100 is provided on the top of the spraying chamber 200.

[0035] The spraying mechanism 300 is equipped with a housing 310, and the housing 310 is equipped with a spraying assembly 320 for spraying the gift bag products conveyed on the roller conveyor 100. Inside the housing 310, on both sides, are respectively provided a first stirring assembly 350 and a second stirring assembly 360 for stirring the varnish inside the housing 310. A connecting pipe 315 is provided on the lower part of one inner wall of the housing 310, and one end of the connecting pipe 315 is provided with a filter end for filtering and blocking impurities in the varnish. The filter end cap 316 is connected to the connecting pipe 315 by a threaded connection. A cleaning component 370 for cleaning the filter end cap 316 is provided below the second stirring component 360. A reduction motor 340 for driving the second stirring component 360, the first stirring component 350 and the spraying component 320 to rotate is provided on the spraying mechanism 300. A pump body 330 for delivering the varnish inside the housing 310 to the spraying component 320 is provided on the spraying mechanism 300.

[0036] The box body 310 is installed on the top of the spray booth 200. The top of the box body 310 is equipped with a top cover 311. A discharge pipe 314 is provided on the lower side of one outer wall of the box body 310. A valve body is provided on the discharge pipe 314, and the interior of the discharge pipe 314 is connected to the interior of the connecting pipe 315.

[0037] A hollow rotating shaft 322 is provided on the spraying assembly 320. The bottom end of the hollow rotating shaft 322 passes through the sealed bearing at the center of the surface of the partition 313, the sealed bearing at the center of the bottom of the housing 310, and the sealed bearing at the center of the top of the spraying booth 200, extending to the inside of the spraying booth 200 and connecting to the spray head 324 through the branch pipe 323. The partition 313 is located above the interior of the hollow column 312, and a rigid tube 321 is installed inside the sealed bearing above the interior of the hollow rotating shaft 322.

[0038] Both the first stirring assembly 350 and the second stirring assembly 360 are provided with a first rotating shaft 362. One end of the first rotating shaft 362 on the first stirring assembly 350 and the second stirring assembly 360 extends through the sealed bearing on the outer wall of the hollow column 312 into the interior of the hollow column 312 and is connected to the bevel gear. The bevel gear on one end of the first rotating shaft 362 is meshed with the bevel gear on the circumferential outer wall of the hollow rotating shaft 322.

[0039] A stirring rod 361 is provided on the outer wall of the first rotating shaft 362, and the stirring rod 361 is located inside the housing 310. The other end of the first rotating shaft 362 on the first stirring assembly 350 passes through the sealed bearing on the outer wall of the other side of the housing 310 and extends to the outside to connect with the bevel gear. The other end of the first rotating shaft 362 on the second stirring assembly 360 passes through the sealed bearing on the outer wall of one side of the housing 310 and extends to the outside. When the first rotating shaft 362 on the first stirring assembly 350 and the second stirring assembly 360 rotates, it will drive the stirring rod 361 to rotate. When the stirring rod 361 rotates, it will stir the varnish inside the housing 310, increase the fluidity of the varnish inside the housing 310, and avoid the occurrence of sedimentation, clumping and stratification of the varnish due to poor fluidity.

[0040] The cleaning assembly 370 is provided with a second rotating shaft 371. A scraper 372 is installed at one end of the second rotating shaft 371, and the outer wall of the scraper 372 is in contact with the outer wall of the filter end cover 316. The other end of the second rotating shaft 371 passes through the sealed bearing on the outer wall of the hollow column 312 and extends into the interior of the hollow column 312 to connect with a bevel gear. The bevel gear on the other end of the second rotating shaft 371 meshes with the bevel gear on the circumferential outer wall of the hollow rotating shaft 322. When the cleaning assembly 370 rotates, the rotation of the second rotating shaft 371 will cause the scraper 372 to scrape off the clumps, impurities and other foreign objects adsorbed on one side of the outer wall of the filter end cover 316.

[0041] The inlet end of the pump body 330 is connected to the outlet pipe 314 through a pipe joint, and the outlet end of the pump body 330 is connected to the rigid pipe 321 through a conveying pipe. The pump body 330 is installed on one side of the top of the spray booth 200.

[0042] A bevel gear is mounted on the output shaft of the geared motor 340, and the bevel gear on the geared motor 340 meshes with the bevel gear on the other end of the first rotating shaft 362 of the first mixing assembly 350. The geared motor 340 is mounted on the other side of the top of the spray booth 200. When the geared motor 340 starts, it drives the second mixing assembly 360 to rotate through the bevel gear set. When the second mixing assembly 360 rotates, it drives the spraying assembly 320 to rotate through the bevel gear set. When the spraying assembly 320 rotates, it drives the first mixing assembly 350 and the cleaning assembly 370 to rotate through the bevel gear set respectively.

[0043] Working Principle: When in use, with the external power supply connected, the equipment sprays varnish onto the gift bags conveyed by the roller conveyor 100. The geared motor 340 and pump 330 start. The pump 330 pumps the varnish inside the housing 310 sequentially through the conveying pipe, rigid pipe 321, hollow rotating shaft 322, and branch pipe 323 to the nozzle 324, from which it is sprayed onto the surface of the gift bag. The geared motor 340 drives the first stirring component 350, the second stirring component 360, the cleaning component 370, and the spraying component 320 to rotate. The rotation of the first stirring component 350 and the second stirring component 360 stirs the varnish inside the housing 310, effectively ensuring the uniformity and stability of the varnish composition and concentration. This prevents sedimentation, clumping, and stratification of the varnish, which can lead to localized shine on the gift bag. The absence of varnish variations improves the quality and aesthetics of the gift bag products. Before the varnish inside the housing 310 enters the pump body 330, the filter end cap 316 on the connecting pipe 315 filters and blocks lumps, impurities, particles, and other foreign matter in the varnish. This effectively prevents lumps, impurities, particles, and other foreign matter in the varnish from entering the nozzle 324 and causing clogging of the nozzle 324. This reduces the frequency of downtime for cleaning and maintenance due to nozzle 324 clogging, significantly reducing equipment maintenance costs. At the same time, the service life of the nozzle 324 is extended, ensuring the continuity and stability of the spraying operation. When the cleaning component 370 rotates, the scraper 372 on the cleaning component 370 scrapes off the lumps, impurities, particles, and other foreign matter filtered on the filter end cap 316, preventing lumps, impurities, particles, and other foreign matter from clogging the filter end cap 316.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the invention. For those skilled in the art, various modifications and variations can be made to this invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A spraying device for producing high-gloss gift bags, comprising a spray booth (200), characterized in that: The inner lower part of the spray booth (200) is provided with a roller conveyor (100) for conveying gift bag products, and the top of the spray booth (200) is provided with a spraying mechanism (300) for spraying the gift bag products conveyed on the roller conveyor (100). The spraying mechanism (300) is provided with a housing (310), and the housing (310) is provided with a spraying assembly (320) for spraying the gift bag products conveyed on the roller conveyor (100). A first stirring assembly (350) and a second stirring assembly (360) for stirring the varnish inside the housing (310) are respectively provided on both sides of the interior of the housing (310). A connecting pipe (315) is provided below one inner wall of the housing (310), and a filter end cap (360) for filtering and blocking impurities in the varnish is provided at one end of the connecting pipe (315). 16), and the filter end cap (316) and the connecting pipe (315) are connected by a threaded fit. A cleaning component (370) for cleaning the filter end cap (316) is provided below the second stirring component (360). A geared motor (340) for driving the second stirring component (360), the first stirring component (350) and the spraying component (320) to rotate is provided on the spraying mechanism (300). A pump (330) for conveying the varnish inside the box (310) to the spraying component (320) is provided on the spraying mechanism (300).

2. The spraying device for producing high-gloss gift bags according to claim 1, characterized in that: The box (310) is installed on the top of the spray booth (200). The top of the box (310) is covered with a top cover (311). A discharge pipe (314) is provided on the lower side of one outer wall of the box (310). A valve body is provided on the discharge pipe (314), and the interior of the discharge pipe (314) is connected to the interior of the connecting pipe (315).

3. The spraying device for producing high-gloss gift bags according to claim 1, characterized in that: The spraying assembly (320) is provided with a hollow rotating shaft (322). The bottom end of the hollow rotating shaft (322) passes through the sealed bearing at the center of the surface of the partition (313), the sealed bearing at the center of the bottom end of the housing (310), and the sealed bearing at the center of the top of the spraying chamber (200) and extends to the inside of the spraying chamber (200) and is connected to the spray nozzle (324) through a branch pipe (323). The partition (313) is located above the interior of the hollow column (312). A rigid tube (321) is installed in the sealed bearing above the interior of the hollow rotating shaft (322).

4. The spraying device for producing high-gloss gift bags according to claim 1, characterized in that: The first stirring assembly (350) and the second stirring assembly (360) are each provided with a first rotating shaft (362). One end of the first rotating shaft (362) on the first stirring assembly (350) and the second stirring assembly (360) extends through the sealed bearing on the outer wall of the hollow column (312) into the interior of the hollow column (312) and is connected to the bevel gear. The bevel gear on one end of the first rotating shaft (362) meshes with the bevel gear on the circumferential outer wall of the hollow rotating shaft (322).

5. The spraying device for producing high-gloss gift bags according to claim 4, characterized in that: A stirring rod (361) is provided on the outer wall of the first rotating shaft (362), and the stirring rod (361) is located inside the housing (310). The other end of the first rotating shaft (362) on the first stirring assembly (350) passes through the sealed bearing on the outer wall of the other side of the housing (310) and extends to the outside to connect with the bevel gear. The other end of the first rotating shaft (362) on the second stirring assembly (360) passes through the sealed bearing on the outer wall of one side of the housing (310) and extends to the outside.

6. The spraying device for producing high-gloss gift bags according to claim 1, characterized in that: The cleaning assembly (370) is provided with a second rotating shaft (371). A scraper (372) is installed at one end of the second rotating shaft (371), and the outer wall of the scraper (372) is in contact with the outer wall of the filter end cap (316). The other end of the second rotating shaft (371) passes through the sealed bearing on the outer wall of the hollow column (312) and extends into the interior of the hollow column (312) to connect with a bevel gear. The bevel gear on the other end of the second rotating shaft (371) meshes with the bevel gear on the circumferential outer wall of the hollow rotating shaft (322).

7. The spraying device for producing high-gloss gift bags according to claim 1, characterized in that: The inlet end of the pump body (330) is connected to the outlet pipe (314) through a pipe joint, and the outlet end of the pump body (330) is connected to the rigid pipe (321) through a conveying pipe. The pump body (330) is installed on one side of the top of the spray booth (200).

8. The spraying apparatus for producing high-gloss gift bags according to claim 1, characterized in that: A bevel gear is installed on the output shaft of the geared motor (340), and the bevel gear on the geared motor (340) meshes with the bevel gear on the other end of the first rotating shaft (362) on the first stirring assembly (350). The geared motor (340) is installed on the other side of the top of the spray booth (200).

Citation Information

Patent Citations

  • Limiting tool piece and to-be-painted vehicle body with limiting tool piece

    CN212596569U