Quickly-replaceable profiling spraying tool

Abstract

The utility model provides a quick-changing type profiling spraying tool, and belongs to the technical field of spraying tools. The quick-changing type profiling spraying tool comprises profiling plates, spraying pipe plate modules and positioning supporting columns, and the profiling plates are uniform in size and are matched with the placing distance between negative pressure line sand cores and shell mold line sand cores; the spraying pipe plate module comprises a spraying pipe plate and a replaceable spraying pipeline, the replaceable spraying pipeline is arranged on the surface of the spraying pipe plate and comprises a copper spraying pipe and a PU pipe, the copper spraying pipe is fixed to the spraying pipe plate in a threaded or inserted mode and connected with the PU pipe through a quick-change connector, and the number of the positioning supporting columns is four. And the spraying nozzles are distributed at four corners of the profiling plate and the spraying pipe plate and are fixedly connected through bolts. Through the lightweight, modularized and standardized design, the cold core spraying work efficiency can be improved, and the production cost can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of spraying tooling technology, specifically relating to a quick-change contour spraying tooling. Background Technology

[0002] Traditional cold core spraying fixtures have many problems in cold core spraying operations. From a structural and manufacturing perspective, the fixtures are made according to the cold core structure and the spraying position, resulting in complex internal structures, long manufacturing cycles, and a significant consumption of time and labor costs.

[0003] During use and maintenance, the nozzle is prone to deformation during replacement and storage. Once deformed, it can easily cause paint to be sprayed onto non-target areas, resulting in paint waste and potentially affecting product quality.

[0004] From a cost perspective, each product requires a separate spraying fixture with a spray nozzle, resulting in high fixture manufacturing costs. Furthermore, the different cold core placement spacing between shell-type and negative pressure lines leads to inconsistent base plate dimensions for the corresponding spraying fixtures, making them incompatible between different production lines and further limiting the fixtures' versatility and efficiency. These issues need to be addressed to improve the efficiency of cold core spraying and reduce production costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is how to improve the working efficiency of cold core spraying contouring tooling and reduce production costs. In view of the shortcomings of the existing technology, a quick-change contouring spraying tooling is provided.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a quick-change contour spraying fixture, including a contour plate, a spray nozzle plate module, and positioning support columns. The contour plate has a uniform size to accommodate the placement spacing of negative pressure wire cores and shell-shaped wire cores. The spray nozzle plate module includes a spray nozzle plate and replaceable spraying pipes. The replaceable spraying pipes are provided on the surface of the spray nozzle plate. The replaceable spraying pipes include copper spray nozzles and PU pipes. The copper spray nozzles are fixed to the spray nozzle plate by threads or plugs and are connected to the PU pipes by quick-change connectors. There are four positioning support columns, distributed at the four corners of the contour plate and the spray nozzle plate, and fixedly connected by bolts.

[0008] Optionally, the nozzle plate is made of a lightweight composite material.

[0009] Optionally, the contour plate and the nozzle plate are arranged in layers by positioning support columns.

[0010] Optionally, a 3-5mm thick cushioning pad is attached to the back of the contour plate.

[0011] Optionally, the nozzle plate and the contour plate adopt a standardized interface to adapt to the sand core spacing of different production lines; the copper nozzle can be replaced with different diameters or materials to adapt to various coating viscosities, and the spraying area error is ≤1mm.

[0012] Compared to existing technologies, the advantages of this utility model include: A quick-change contour spraying fixture is constructed by setting up a contour plate, a spray nozzle plate module, and positioning support columns. The contour plate and spray nozzle plate are connected in layers by multiple positioning support columns, which are distributed at the four corners of the two plates and secured with bolts. The spray nozzle plate module consists of a spray nozzle plate and spraying pipes, allowing the fixture to be optimized for different spraying needs, improving spraying accuracy and applicability, and better meeting different production process requirements. A replaceable spraying pipe is provided above the spray nozzle plate, which includes a copper spray nozzle and a PU tube. The copper spray nozzle is fixed to the spray nozzle plate by threads or plug-in connections and connected to the PU tube via quick-change connectors. The copper nozzle on the nozzle plate is connected to the PU tubing of the external paint supply system. The copper nozzle, with its excellent thermal conductivity and corrosion resistance, ensures stability and reliability during long-term use, extending its service life and improving coating quality. The copper nozzle and PU tubing are quickly connected or disconnected via quick-connect couplings, significantly reducing assembly and disassembly time, improving work efficiency, minimizing downtime, and facilitating continuous production. The overall structure is rationally designed, with clear installation methods for each component, simplifying installation, reducing difficulty, and facilitating future maintenance and repair. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 : A schematic diagram of the overall structure of the quick-change contour spraying fixture in this embodiment of the present invention;

[0015] Figure 2 : A schematic diagram of the nozzle plate structure of the quick-change contour spraying fixture in this embodiment of the present invention;

[0016] Figure 3 : A schematic diagram of the replaceable spray pipe structure of the quick-change contour spraying fixture in this embodiment of the present invention;

[0017] Figure 4 : A schematic diagram of the contour plate structure of the quick-change contour spraying fixture in this embodiment of the present invention;

[0018] The components include: 1. Contouring plate; 2. Copper nozzle; 3. PU tube; 4. Quick-change connector; 5. Nozzle plate; 6. Positioning support column. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0020] It should be noted that the Z-axis in the attached figures represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis representing upward and the negative direction representing downward; the Y-axis in the attached figures represents the horizontal direction and is designated as the front-back position, with the positive direction of the Y-axis representing the front and the negative direction representing the back; the X-axis in the attached figures represents the left-right position, with the positive direction of the X-axis representing the right and the negative direction representing the left. It should also be noted that the aforementioned representations of the Z, Y, and X axes 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.

[0021] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0022] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] In the casting industry, cold core spraying fixtures are used to coat sand cores with paint to improve the surface quality of castings. Traditional spraying fixtures have complex structures, with integrated designs of spray nozzles and contour plates. They require custom-made fixtures for each product, resulting in long production cycles and high costs. Spray nozzles are prone to deformation, and frequent fixture changes can damage them, leading to paint waste and contamination of non-target areas. Furthermore, the spacing between sand cores placed using negative pressure lines and shell profile lines is not interchangeable, and the fixture base plate dimensions are incompatible, requiring separate fabrication and increasing storage and management difficulties.

[0024] To solve the above problems, an embodiment of this utility model provides a quick-change contour spraying fixture, including a contour plate (1), a spray pipe plate module and positioning support columns (6). The contour plate (1) has a uniform size and can be adapted to the placement spacing of negative pressure wire cores and shell-shaped wire cores. The spray pipe plate module includes a spray pipe plate (5) and replaceable spraying pipelines. The surface of the spray pipe plate (5) is provided with replaceable spraying pipelines. The replaceable spraying pipelines include copper spray pipes (2) and PU pipes (3). The copper spray pipes (2) are fixed to the spray pipe plate (5) by threads or plugs and are connected to the PU pipes (3) by quick-change connectors (4). There are 4 positioning support columns (6) distributed at the four corners of the contour plate (1) and the spray pipe plate (5) and are fixedly connected by bolts.

[0025] In this embodiment, as Figures 1 to 4 As shown, a quick-change contour spraying fixture is composed of a contour plate (1), a spray nozzle plate module, and positioning support columns (6). The contour plate (1) has a uniform size and can be adapted to different sand core placement spacings. The contour plate (1) and the spray nozzle plate (5) are connected in layers by four positioning support columns (6). The positioning support columns (6) are distributed at the four corners of the two plates and are fastened with bolts. The spray nozzle plate module consists of a spray nozzle plate (5) and a spraying pipeline, which allows the fixture to be optimized for different spraying needs, improving the accuracy and applicability of spraying and better meeting different production process requirements. A replaceable spraying pipeline is provided above the spray nozzle plate (5). The replaceable spraying pipeline is equipped with a copper spray nozzle (2) and a PU tube (3). The copper spray nozzle (2) is fixed to the spray nozzle plate (5) by thread or plug-in method and is connected to the spray nozzle plate (5) by a quick-change connector (4). The PU tube (3) is connected to the copper spray pipe (2) on the spray pipe plate (5) and the PU tube (3) of the external paint supply system. The spray pipe (2) is made of copper. Copper material has good thermal conductivity and corrosion resistance, which can ensure the stability and reliability of the spray pipe during long-term use, extend the service life of the spray pipe, and also help improve the spraying effect. The copper spray pipe (2) and the PU tube (3) can be quickly connected or disassembled through the quick-connect coupling (4). In actual use, it can greatly shorten the assembly and disassembly time of the tooling, improve work efficiency, reduce downtime, and facilitate continuous production. The overall structure design is reasonable and the installation method between each component is clear, which makes the installation process of the tooling relatively simple, reduces the installation difficulty, and is also conducive to later maintenance and repair.

[0026] Optionally, the nozzle plate (5) is made of lightweight composite material.

[0027] Specifically, the nozzle plate (5) is made of carbon fiber reinforced plastic or aluminum alloy and weighs ≤10kg.

[0028] In this optional embodiment, such as Figures 1 to 2As shown, in order to improve the production efficiency and reduce the production cost of quick-change contour spraying fixtures, the spray nozzle plate (5) can be replaced with different spray nozzle plates according to the size, shape or placement spacing of the sand core. A single production line only needs to replace the spray nozzle plate (5) to adapt to all products, reducing the cost by 0.9 million yuan / set.

[0029] Optionally, the contour plate (1) and the nozzle plate (5) are arranged in layers by positioning support columns (6).

[0030] In this optional embodiment, such as Figures 1 to 4 As shown, in order to improve the flexibility, scalability and production efficiency of the quick-change contour spraying fixture, the contour plate (1) and the nozzle plate (5) are set in layers and can be quickly replaced by removing the four corner positioning support columns (6). With this setting, only the four corner bolts need to be removed to replace the contour plate (1), which greatly shortens the changeover time. The four corner positioning support columns (6) ensure that the copper nozzle (2) and the contour plate (1) are aligned with high precision. The nozzle plate (5) and the contour plate (1) are designed independently.

[0031] Optionally, a 3-5mm thick cushioning pad is attached to the back of the profile plate (1).

[0032] Specifically, the cushioning layer is made of silicone or polyurethane.

[0033] In this optional embodiment, such as Figure 1 and Figure 4 As shown, in order to reduce damage to quick-change contour spraying fixtures, a 3-5mm thick silicone or polyurethane buffer pad is attached to the back of the contour plate (1). The contact surface with the cold core adopts a contour curved surface design. The size is uniform and adapted to the negative pressure line and shell-shaped line sand core structure. The buffer pad reduces damage to the cold core and fixtures, and the sand core breakage rate is reduced. The contour plate (1) of uniform size can be reused across production lines.

[0034] Optionally, the nozzle plate (5) and the contour plate (1) adopt a standardized interface to adapt to the sand core spacing of different production lines; the copper nozzle (2) can be replaced with different diameters or materials to adapt to various coating viscosities, and the spraying area error is ≤1mm.

[0035] In this optional embodiment, such as Figures 1 to 4 As shown, in order to improve equipment utilization and reduce paint waste, the spray nozzle plate (5) and the contour plate (1) adopt a standardized interface to adapt to the sand core spacing of different production lines. Cross-line universality can be achieved by replacing the contour plate (1), and the same tooling can be seamlessly switched, greatly improving equipment utilization. Moreover, only the contour plate (1) needs to be replaced each time the production line is changed, which is not easy to cause the spray nozzle to deform. This allows the paint to be sprayed better on the spraying area, saving paint materials. By replacing the spray nozzle to adapt to different paint viscosities, the paint accuracy is greatly improved.

[0036] This invention enables quick-change contour spraying fixtures, allowing for rapid single-person production changeovers and precise spraying, significantly reducing paint waste and meeting green manufacturing requirements.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

[0038] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change contour spraying fixture, characterized in that: The system includes a contour plate, a nozzle plate module, and positioning support columns. The contour plate has a uniform size to accommodate the placement spacing of negative pressure wire cores and shell-shaped wire cores. The nozzle plate module includes a nozzle plate and replaceable spraying pipes. The replaceable spraying pipes are provided on the surface of the nozzle plate. The replaceable spraying pipes include copper nozzles and PU tubes. The copper nozzles are fixed to the nozzle plate by threads or plugs and are connected to the PU tubes by quick-connect couplings. There are four positioning support columns, distributed at the four corners of the contour plate and the nozzle plate, and fixedly connected by bolts.

2. The quick-change contour spraying fixture as described in claim 1, characterized in that: The nozzle plate is made of lightweight composite material.

3. The quick-change contour spraying fixture as described in claim 1, characterized in that: The contour plate and the nozzle plate are arranged in layers by positioning support columns.

4. The quick-change contour spraying fixture as described in claim 1, characterized in that: The back of the conformal plate is fitted with a 3-5mm thick cushioning pad.

5. The quick-change contour spraying fixture as described in claim 1, characterized in that: The nozzle plate and the contour plate adopt a standardized interface to adapt to the sand core spacing of different production lines; the copper nozzle can be replaced with different diameters or materials to adapt to various paint viscosities, and the spraying area error is ≤1mm.

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