A mold surface coating pretreatment and cleaning device

By designing a pretreatment cleaning device for mold surface coatings, combining ultrasonic cleaning and hot air drying, the problem of low cleaning efficiency for complex mold structures was solved, achieving efficient integrated cleaning and drying, and improving coating adhesion and production efficiency.

CN224443903UActive Publication Date: 2026-07-03KUNSHAN YOUNDE PRECISION MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN YOUNDE PRECISION MOULD CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing mold cleaning technologies are ineffective at cleaning complex structures such as deep holes and narrow gaps, are time-consuming, and require large amounts of cleaning agents. Ultrasonic cleaning requires pretreatment for thick oil stains or large particles of impurities, has high equipment energy consumption, and the process is fragmented.

Method used

Design a mold surface coating pretreatment cleaning device, which combines cleaning components and adjustment components, and achieves cleaning-drying integration through an integrated process of ultrasonic cleaning and hot air drying. This includes multi-angle spraying of cleaning agent, precise immersion in the ultrasonic tank, and tumbling drying.

Benefits of technology

It improves the cleaning efficiency of complex structures, significantly enhances coating adhesion, adapts to the needs of automated production lines, avoids manual transfer, and achieves an efficient integrated cleaning-drying process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a mold surface coating pretreatment cleaning device, relating to the field of mold technology. The utility model includes a cleaning tank with a support fixedly connected to the top. A rinsing nozzle is disposed at the bottom of the support. A cleaning assembly is disposed inside the cleaning tank, including an ultrasonic cleaning device. The utility model uses a first hydraulic cylinder in the cleaning assembly to drive the rinsing nozzle to move up and down, combined with a first rotating mechanism to rotate the nozzle 360°, achieving multi-angle spraying of cleaning agent. Simultaneously, a sliding table cylinder and a second hydraulic cylinder in the adjusting assembly coordinate to control the lateral and vertical displacement of the placement plate, ensuring precise immersion of the mold in the ultrasonic cleaning tank. The ultrasonic cleaning device removes microscopic stains through high-frequency cavitation effect. Subsequently, six drying pipes evenly distribute hot air, and the second rotating mechanism flips the mold to achieve mold drying.
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Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a mold surface coating pretreatment and cleaning device. Background Technology

[0002] Molds are crucial tools in industrial production used to solidify thermoplastic raw materials into products of specific shapes and sizes under external force. They mainly include two categories: injection molds and stamping molds. Taking injection molds as an example, their structure typically consists of a moving mold plate and a fixed mold plate. Molten cavities are pre-set on the surfaces of both mold plates. Molten raw materials are injected into the cavities through an injection molding machine, and after mold closing, pressure application, cooling, and solidification, the final product is formed. However, during long-term use or storage, mold surfaces are prone to accumulating oil stains, mold release agent residues, oxide layers, and particulate contaminants. If these contaminants are not thoroughly removed before heat treatment, direct heating can cause the oil stains to evaporate and burn, not only polluting the workshop environment but also forming a carbonized layer or microcracks on the mold surface. This severely affects the adhesion and uniformity of subsequent coatings, as well as the mold's lifespan, and may even lead to surface defects in the product.

[0003] Current mold pretreatment cleaning technology mainly relies on a single cleaning method: traditional spray cleaning: the surface is rinsed with high-pressure water or cleaning agent, which can remove loose dirt, but it is not effective in cleaning complex structures such as deep holes and crevices, and requires repeated rinsing, which is time-consuming and requires a large amount of cleaning agent; ultrasonic cleaning: it relies on cavitation effect to remove micro-pollutants, but it requires pretreatment for thick oil stains or large particles of impurities, and the equipment has high energy consumption, and the drying process is carried out independently, resulting in a fragmented process.

[0004] To address these issues, we provide a mold surface coating pretreatment and cleaning device. Utility Model Content

[0005] The purpose of this invention is to provide a pretreatment and cleaning device for mold surface coatings. Through the cleaning component and the adjustment component, it solves the problems of traditional spray cleaning requiring repeated rinsing, long time consumption, large amount of cleaning agent consumption, and ultrasonic cleaning requiring pretreatment for thick oil stains or large particulate impurities.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a pretreatment cleaning device for mold surface coating, comprising a cleaning tank, a bracket fixedly connected to the top of the cleaning tank, a rinsing nozzle disposed at the bottom of the bracket, a cleaning assembly disposed inside the cleaning tank, the cleaning assembly comprising an ultrasonic cleaning device disposed inside the cleaning tank, a drying tube disposed inside the cleaning tank, a drying nozzle connected to the top of the drying tube, and a support rod fixedly connected inside the cleaning tank, and an adjustment assembly disposed outside the cleaning tank, the adjustment assembly comprising a support plate fixedly connected to the outside of the cleaning tank, a placement plate disposed on the top of the cleaning tank, and an electromagnet fixedly connected to one side of the placement plate.

[0008] The present invention is further configured such that a support filter screen is fixedly connected inside the cleaning tank, the ultrasonic cleaning device is fixedly connected to the top of the support filter screen, and the support rod is located at the top of the support filter screen.

[0009] The present invention is further configured such that a drying assembly is fixedly connected to one side of the cleaning box, the drying assembly including a drying box fixedly connected to one side of the cleaning box, a fan fixedly connected inside the drying box, and a heating wire disposed inside the drying box.

[0010] The present invention is further configured such that a first hydraulic cylinder is fixedly connected to the top of the bracket, the output end of the first hydraulic cylinder extends to the bottom of the bracket and is fixedly connected to a first rotating mechanism, the flushing nozzle is fixedly connected to the bottom of the first rotating mechanism, and the flushing nozzle is connected to an external cleaning agent delivery device through a rotary joint.

[0011] The present invention is further configured such that a slide cylinder is fixedly connected to the top of the support plate, a slide rod is fixedly connected to the top of the support plate, a support block is slidably connected to the surface of the slide rod, a horizontal plate is fixedly connected between the support block and the slide cylinder, and a second hydraulic cylinder is fixedly connected to the bottom of the horizontal plate.

[0012] The present invention is further configured such that a vertical plate is fixedly connected to the output end of the second hydraulic cylinder, and a second rotating mechanism is fixedly connected to one side of the vertical plate.

[0013] The present invention is further provided that the inside of the cleaning box is provided with a drop channel adapted to the placement plate, and the placement plate is U-shaped.

[0014] The present invention is further configured such that there are six drying tubes, which are horizontally and evenly fixedly connected inside the cleaning box, and the six drying tubes are interconnected by a connecting tube.

[0015] This utility model has the following beneficial effects:

[0016] 1. This invention utilizes a first hydraulic cylinder in the cleaning assembly to drive the rinsing nozzle to move up and down, combined with a first rotating mechanism to rotate the nozzle 360°, achieving multi-angle spraying of cleaning agent. Simultaneously, the sliding table cylinder and the second hydraulic cylinder in the adjusting assembly coordinate to control the lateral and vertical displacement of the placement plate, ensuring precise immersion of the mold in the ultrasonic cleaning tank. The ultrasonic cleaning equipment uses high-frequency cavitation to remove microscopic stains, followed by six drying pipes that evenly distribute hot air, working in conjunction with the second rotating mechanism to flip the mold and achieve mold drying. This process overcomes the limitations of traditional single-cleaning methods, improving pretreatment efficiency and ensuring effective cleaning of complex structures such as deep holes and crevices, significantly enhancing coating adhesion.

[0017] 2. This utility model uses an electromagnet in the adjustment assembly to attract the mold to the top of the U-shaped placement plate. A sliding cylinder then pushes the mold laterally to the cleaning position, and a second hydraulic cylinder drives the placement plate down into the ultrasonic tank. After cleaning, a second rotating mechanism inverts the mold, allowing the drying nozzles to precisely blow clean the mold cavity. This supports the filter screen, separating waste liquid from the equipment. This coordinated movement achieves an integrated cleaning-drying process, avoiding manual transfer and meeting the high-efficiency requirements of automated production lines.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a mold surface coating pretreatment and cleaning device.

[0021] Figure 2 This is a cross-sectional view of the cleaning tank in a mold surface coating pretreatment cleaning device.

[0022] Figure 3 This is a front view of an adjustment component in a mold surface coating pretreatment and cleaning device.

[0023] Figure 4 This is a three-dimensional view of the first hydraulic cylinder and the rinsing nozzle in a mold surface coating pretreatment cleaning device.

[0024] Figure 5 This is a three-dimensional view of the drying tube and drying nozzle in a mold surface coating pretreatment and cleaning device.

[0025] In the attached diagram: 1. Cleaning tank; 2. Support frame; 3. Rinsing nozzle; 4. Cleaning assembly; 401. Ultrasonic cleaning equipment; 402. Drying tube; 403. Drying nozzle; 404. Support rod; 5. Adjustment assembly; 501. Support plate; 502. Placement plate; 503. Electromagnet; 6. Support filter; 7. Drying assembly; 8. First hydraulic cylinder; 9. First rotating mechanism; 10. Slide table cylinder; 11. Slide rod; 12. Support block; 13. Second hydraulic cylinder; 14. Vertical plate; 15. Second rotating mechanism; 16. Drop channel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] For a specific implementation example, please refer to Implementation Example 1. Figures 1-5 This utility model is a pretreatment cleaning device for mold surface coating, including a cleaning tank 1, a bracket 2 fixedly connected to the top of the cleaning tank 1, a rinsing nozzle 3 provided at the bottom of the bracket 2, a cleaning component 4 provided inside the cleaning tank 1, the cleaning component 4 including an ultrasonic cleaning device 401 provided inside the cleaning tank 1, a drying tube 402 provided inside the cleaning tank 1, a drying nozzle 403 connected to the top of the drying tube 402, and a support rod 404 fixedly connected inside the cleaning tank 1, and an adjustment component 5 provided outside the cleaning tank 1, the adjustment component 5 including a support plate 501 fixedly connected to the outside of the cleaning tank 1, a placement plate 502 provided on the top of the cleaning tank 1, and an electromagnet 503 fixedly connected to one side of the placement plate 502.

[0028] Specifically, through the setting of cleaning component 4, the mold is placed on the placement plate 502 and adjusted to the cleaning position by adjusting component 5. The rinsing nozzle 3 is lowered to the set height under the drive of the first hydraulic cylinder 8. At the same time, the first rotating mechanism 9 drives the nozzle to rotate, spraying cleaning agent from multiple angles to rinse loose dirt on the surface. After rinsing, the mold is fixed by the support plate 501 and then immersed in the ultrasonic cleaning equipment 401. The ultrasonic cleaning equipment 401 is started, and cavitation bubbles break on the surface and in the gaps of the mold, removing stubborn stains. The ultrasonic cleaning equipment 401 is existing technology, and this solution will not elaborate further. The technicians are well aware of the working principle. After cleaning, the mold is lifted to the drying area. The six drying pipes 402 distribute hot air evenly through the connecting pipe. The drying nozzles 403 blow the mold surface and cavity in a directional manner to quickly evaporate the residual liquid. By adjusting the settings of component 5, the electromagnet 503 attracts the mold to the top of the placement plate 502. The slide cylinder 10 pushes the horizontal plate to move laterally and sends the mold into the cleaning box 1. The second hydraulic cylinder 13 drives the placement plate 502 to descend into the ultrasonic tank. The second rotating mechanism 15 is started, which drives the rinsed mold to flip over. Hot air dries the inverted mold.

[0029] For a specific embodiment two, please refer to Figures 1-5 Based on the first specific embodiment, a support filter 6 is fixedly connected inside the cleaning tank 1, an ultrasonic cleaning device 401 is fixedly connected to the top of the support filter 6, a support rod 404 is located at the top of the support filter 6, a drying assembly 7 is fixedly connected to one side of the cleaning tank 1, the drying assembly 7 includes a drying box fixedly connected to one side of the cleaning tank 1, a fan fixedly connected inside the drying box, and a heating wire installed inside the drying box, a first hydraulic cylinder 8 is fixedly connected to the top of the bracket 2, the output end of the first hydraulic cylinder 8 extends to the bottom of the bracket 2 and is fixedly connected to a first rotating mechanism 9, a rinsing nozzle 3 is fixedly connected to the bottom of the first rotating mechanism 9, and the rinsing nozzle 3 is connected to an external cleaning agent delivery device through a rotary joint. The top of the support plate 501 is fixedly connected to a sliding cylinder 10, and a sliding rod 11 is fixedly connected to the top of the support plate 501. A support block 12 is slidably connected to the surface of the sliding rod 11. A horizontal plate is fixedly connected between the support block 12 and the sliding cylinder 10. A second hydraulic cylinder 13 is fixedly connected to the bottom of the horizontal plate. A vertical plate 14 is fixedly connected to the output end of the second hydraulic cylinder 13. A second rotating mechanism 15 is fixedly connected to one side of the vertical plate 14. The cleaning box 1 has a drop channel 16 adapted to the placement plate 502. The placement plate 502 is U-shaped. There are six drying tubes 402. The six drying tubes 402 are horizontally and evenly fixedly connected inside the cleaning box 1. The six drying tubes 402 are interconnected by a connecting pipe.

[0030] Specifically, the support filter 6 separates the ultrasonic cleaning device 401 from the support rod 404 at the top of the inner cavity of the cleaning tank 1, allowing the bottom of the inner cavity of the cleaning tank 1 to collect the used cleaning agent. The drying component 7 is existing technology and will not be described in detail here, as those skilled in the art can clearly understand its working principle. The drying component 7 delivers hot air to the drying pipe 402 for rapid drying of the cleaned mold. The first hydraulic cylinder 8 drives the rinsing nozzle 3 to move up and down, adjusting the distance between the rinsing nozzle 3 and the mold. The first rotating mechanism 9 drives the rinsing nozzle 3 to rotate continuously during rinsing, improving the rinsing effect. The sliding table cylinder 10 and the hydraulic cylinder are both existing technologies and will not be described in detail here, as those skilled in the art can clearly understand their working principle. The sliding table cylinder 10 and the support block 1... The second hydraulic cylinder 13 is used to push the second hydraulic cylinder 13 to move laterally. The second hydraulic cylinder 13 is used to drive the placement plate 502 to move up and down. The placement plate 502 is fixedly connected to the second rotating mechanism 15. Both the first rotating mechanism 9 and the second rotating mechanism 15 include a rotating box, a motor fixedly connected inside the rotating box, a gear set fixedly connected to the output end of the motor, and a rotating rod fixedly connected inside the gear set. The rotating mechanism is existing technology, and this solution will not elaborate further. Moreover, those skilled in the art can clearly understand the working principle. The second rotating mechanism 15 is used to drive the placement plate 502 to rotate. The placement plate 502 can fall smoothly into the cleaning box 1 through the falling channel 16. The air outlet of the fan is connected to the connecting pipe. By setting six drying pipes 402, the mold is quickly dried after rinsing.

[0031] The operation process of this embodiment is as follows: the mold to be cleaned is placed on the top of the support plate 501. After the electromagnet 503 is energized, it magnetically attracts the mold and fixes the mold on the top of the support plate 501. The slide cylinder 10 drives the mold to move towards the flushing nozzle 3. The second hydraulic cylinder 13 drives the support plate 501 to move downward, so that the bottom of the support plate 501 contacts the left support rod 404. At this time, the first hydraulic cylinder 8 drives the flushing nozzle 3 to move downward to the specified height. The alkaline cleaning agent is sprayed onto the surface of the mold through the flushing nozzle 3 for 3-5 minutes to remove the surface oil film and provide pretreatment for subsequent ultrasonic cleaning.

[0032] Then, the first hydraulic cylinder 8 drives the flushing nozzle 3 to return to its original position. The adjusting component 5 moves the mold after the first flush to the ultrasonic cleaning equipment 401. The ultrasonic cleaning equipment 401 performs ultrasonic cleaning on the mold again to remove impurities from the mold. After the ultrasonic cleaning is completed, the adjusting component 5 moves the mold back to the flushing nozzle 3 for a third flush.

[0033] After rinsing, the mold moves to the drying tube 402. During the movement, the second rotating mechanism 15 flips the mold upside down and moves it to the top of the drying tube 402. The drying component 7 delivers heated air to the drying tube 402 and blows it onto the mold through the drying nozzle 403 connected to the top of the drying tube 402 to dry the mold. After drying, the mold is cleaned.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mold surface coating pretreatment cleaning device comprising a cleaning tank (1), characterized in that: The top of the cleaning tank (1) is fixedly connected to a bracket (2), and a rinsing nozzle (3) is provided at the bottom of the bracket (2). The cleaning box (1) is equipped with a cleaning component (4), which includes an ultrasonic cleaning device (401) installed inside the cleaning box (1), a drying tube (402) installed inside the cleaning box (1), a drying nozzle (403) connected to the top of the drying tube (402), and a support rod (404) fixedly connected inside the cleaning box (1). The cleaning tank (1) is provided with an adjustment component (5) on the outside. The adjustment component (5) includes a support plate (501) fixedly connected to the outside of the cleaning tank (1), a placement plate (502) set on the top of the cleaning tank (1), and an electromagnet (503) fixedly connected to one side of the placement plate (502).

2. A mold surface coating pretreatment cleaning apparatus according to claim 1, wherein The cleaning tank (1) is fixedly connected to a support filter (6), the ultrasonic cleaning device (401) is fixedly connected to the top of the support filter (6), and the support rod (404) is located on the top of the support filter (6).

3. The mold surface coating pretreatment cleaning apparatus of claim 1, wherein A drying assembly (7) is fixedly connected to one side of the cleaning box (1). The drying assembly (7) includes a drying box fixedly connected to one side of the cleaning box (1), a fan fixedly connected inside the drying box, and a heating wire installed inside the drying box.

4. The mold surface coating pretreatment cleaning apparatus of claim 1, wherein The bracket (2) is fixedly connected to the top of a first hydraulic cylinder (8). The output end of the first hydraulic cylinder (8) extends to the bottom of the bracket (2) and is fixedly connected to a first rotating mechanism (9). The flushing nozzle (3) is fixedly connected to the bottom of the first rotating mechanism (9). The flushing nozzle (3) is connected to an external cleaning agent delivery device through a rotary joint.

5. The mold surface coating pretreatment cleaning apparatus of claim 1, wherein A slide cylinder (10) is fixedly connected to the top of the support plate (501), a slide rod (11) is fixedly connected to the top of the support plate (501), a support block (12) is slidably connected to the surface of the slide rod (11), a horizontal plate is fixedly connected between the support block (12) and the slide cylinder (10), and a second hydraulic cylinder (13) is fixedly connected to the bottom of the horizontal plate.

6. A mold surface coating pretreatment cleaning apparatus according to claim 5, wherein The output end of the second hydraulic cylinder (13) is fixedly connected to a vertical plate (14), and a second rotating mechanism (15) is fixedly connected to one side of the vertical plate (14).

7. The mold surface coating pretreatment cleaning apparatus of claim 1, wherein The cleaning box (1) has a drop channel (16) inside that is adapted to the placement plate (502), and the placement plate (502) is U-shaped.

8. The mold surface coating pretreatment cleaning apparatus of claim 1, wherein The number of drying tubes (402) is six. The six drying tubes (402) are horizontally and evenly fixed inside the cleaning box (1). The six drying tubes (402) are interconnected by a connecting tube.