A polishing machine for resin handicraft processing

Abstract

The utility model belongs to the technical field of polishing machine, concretely relates to a polishing machine for resin handicraft processing, including polishing mechanism, polishing mechanism includes drive motor, drive motor drive has the driving shaft, and the driving shaft is fixed with the polishing wheel, and the rear side of polishing wheel is provided with dust collecting cover, and dust collecting cover is connected through the air inlet of filter assembly through gas collector, three -way pipe, and the air outlet of filter assembly is connected the air inlet of centrifugal fan, and the air outlet of centrifugal fan is communicated the top side of purification assembly, and purification assembly includes the box, and the bottom side of box is provided with the air outlet, and the inside of box is installed with ultraviolet lamp, and the inside of box still is installed with the baffle that surface is coated with photocatalytic coating. The particulate matter and organic volatile gas generated in the process of polishing mechanism to resin piece polishing are sucked and delivered by centrifugal fan, make gas in after filter assembly and purification assembly make be filtered out particulate matter and decomposition and remove organic gas in turn, guarantee the body of operator not to be damaged.

Description

Technical Field

[0001] This utility model belongs to the field of polishing machine technology, and specifically relates to a polishing machine for processing resin crafts. Background Technology

[0002] Resin crafts are widely used in decoration and gift industries due to their diverse shapes and low cost. However, the properties of resin materials mean that the polishing process can cause serious environmental pollution and health hazards, as detailed below: 1. Significant Dust Pollution: Polishing resin crafts generates a large amount of fine dust, mainly composed of resin particles, fillers (such as calcium carbonate and talc), and abrasive particles (such as silica). These dust particles are mostly between 1-10 μm in diameter and can remain suspended in the air for extended periods. Traditional polishing machines use only simple dust hoods or bag filters, with a capture efficiency of less than 60% for ultrafine dust (especially inhalable particles <5 μm in diameter). This results in workshop dust concentrations often exceeding the standard by 5-10 times (GBZ 2.1-2019 specifies a time-weighted average permissible concentration of respirable dust of 1 mg / m³). Long-term exposure to this environment significantly increases the risk of pneumoconiosis for operators.

[0003] 2. Serious hazards from volatile organic compounds (VOCs): During the polishing process, the resin generates heat through friction, releasing VOCs such as styrene, formaldehyde, and toluene. Taking unsaturated polyester resin as an example, the amount of residual styrene monomer volatilized during polishing can reach 0.5-2 g / kg of resin, and styrene has been classified as a Group 2B carcinogen by the International Agency for Research on Cancer (IARC). Traditional activated carbon adsorption devices only achieve a removal rate of 40%-60% for low-concentration, highly volatile styrene, and the activated carbon needs frequent replacement, resulting in high operating costs.

[0004] 3. Existing filtration systems for polishing machines used in resin crafts processing are inefficient: Conventional cartridge dust collectors mostly adopt an outflow design, and the cartridges are easily clogged by resin dust (especially highly viscous epoxy resin dust), requiring frequent shutdowns for cleaning, which reduces equipment utilization. In addition, there is the problem of incomplete odor treatment: Relying solely on activated carbon or spray towers to treat VOCs cannot decompose stubborn organic compounds such as styrene, and can only achieve physical adsorption, which can easily cause secondary pollution. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a polishing machine for processing resin crafts, which solves the problems of low dust capture efficiency, incomplete treatment of volatile organic compounds such as styrene, and frequent cleaning of filter cartridges that are prone to clogging in existing resin craft polishing machines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a polishing machine for processing resin crafts, comprising a polishing mechanism, wherein the polishing mechanism includes a drive motor, the drive motor drives a drive shaft, a polishing wheel is fixedly mounted on the drive shaft, a dust collection hood is provided on the rear side of the polishing wheel, the dust collection hood is installed at one end of an air collection pipe, the other end of the air collection pipe is connected to both ends of a three-way pipe, the other end of the three-way pipe is connected to the air inlet of a filter assembly, the air outlet of the filter assembly is connected to the air inlet of a centrifugal fan, the air outlet of the centrifugal fan is connected to the top side of a purification assembly, the purification assembly includes a housing, an air outlet is provided on the bottom side of the housing, an ultraviolet lamp is installed inside the housing, and a guide plate with a photocatalytic coating is also installed inside the housing.

[0007] The beneficial effects of this utility model are as follows: the particulate matter and volatile organic gases generated during the polishing process of the resin parts are drawn and transported by the centrifugal fan, so that the gas is filtered and the particulate matter is removed and the organic gases are decomposed and removed in turn after passing through the filter component and the purification component, ensuring that the operator's body is not harmed.

[0008] In order to effectively filter out particulate matter generated during the polishing process by using a filter assembly; As a further improvement to the above technical solution: the filter assembly includes an outer shell, the outer shell is a three-way pipe structure, the top end of the outer shell is connected to the air inlet of the centrifugal fan, the bottom end of the outer shell is threaded with an internal threaded cover, a filter cartridge is clamped between the internal threaded cover and the outer shell, the other end of the outer shell is connected to one end of the centrifugal fan, and the diameter of the air inlet of the centrifugal fan is not greater than the inner diameter of the filter cartridge.

[0009] The beneficial effects of this improvement are: when the centrifugal fan is working, it creates a negative pressure at the slot of the dust collection hood, which allows the air to carry the gas and particulate matter generated during the polishing process into the interior of the outer casing through the pipe, so that the particulate matter is effectively filtered and retained on the outside of the filter cartridge.

[0010] To ensure the stability of the filter cartridge installation; As a further improvement to the above technical solution: both the inner threaded cover and the positioning protrusion have protruding positioning protrusions that are adapted to be inserted into the inner side of the filter cartridge.

[0011] The beneficial effects of this improvement are: the positioning protrusions play a positioning and supporting role, ensuring the stability of the filter cartridge installation.

[0012] In order to effectively improve the treatment effect of purification components on organic gases; As a further improvement to the above technical solution: the number of the guide plates is multiple, and they are equidistantly spaced inside the housing, with the upper and lower adjacent guide plates staggered left and right.

[0013] The beneficial effects of this improvement are: multiple baffles isolate a serpentine channel for gas flow inside the chamber, effectively extending the gas treatment time inside the chamber, thereby improving the purification component's treatment effect on organic gases.

[0014] To avoid the deflector plate blocking the UV light; As a further improvement to the above technical solution: the axis of the ultraviolet lamp is perpendicular to the upper and lower end faces of the guide plate, and the guide plate is provided with a slot suitable for mounting the ultraviolet lamp.

[0015] The beneficial effects of this improvement are: the ultraviolet light emitted by the ultraviolet lamp will not be blocked by the guide plate and can effectively irradiate the surface of the guide plate, so that the photocatalyst coated on the surface of the guide plate can fully react with the organic gas.

[0016] To ensure the stability of the enclosure installation; As a further improvement to the above technical solution: the bottom of the box is equipped with support legs, which are angle iron structures.

[0017] The beneficial effects of this improvement are: the support legs can provide stable support for the housing, ensuring the stability of the purification components during operation.

[0018] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of the filter assembly in this utility model; Figure 4 This is a cross-sectional view of the purification component in this utility model; In the diagram: 1. Polishing mechanism; 11. Drive motor; 12. Drive shaft; 13. Polishing wheel; 14. Dust collection hood; 15. Air collection pipe; 16. T-pipe; 2. Filter assembly; 21. Outer shell; 22. Internal threaded cover; 23. Filter cartridge; 24. Positioning protrusion; 3. Centrifugal fan; 4. Purification assembly; 41. Box; 42. Ultraviolet lamp; 43. Guide plate; 44. Air outlet; 45. Support leg. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0021] Example 1: like Figure 1As shown in Figure 4: A polishing machine for processing resin crafts includes a polishing mechanism 1. The polishing mechanism 1 includes a drive motor 11, which drives a drive shaft 12. A polishing wheel 13 is fixed on the drive shaft 12. A dust collection hood 14 is provided on the rear side of the polishing wheel 13. The dust collection hood 14 is installed at one end of an air collection pipe 15. The other end of the air collection pipe 15 is connected to both ends of a three-way pipe 16. The other end of the three-way pipe 16 is connected to the air inlet of a filter assembly 2. The air outlet of the filter assembly 2 is connected to the air inlet of a centrifugal fan 3. The air outlet of the centrifugal fan 3 is connected to the top side of a purification assembly 4. The purification assembly 4 includes a housing 41. An air outlet 44 is provided on the bottom side of the housing 41. An ultraviolet lamp 42 is installed inside the housing 41, and a guide plate 43 with a photocatalytic coating is also installed inside the housing 41. During the polishing process of the resin parts, particulate matter and volatile organic gases generated by the polishing mechanism 1 are drawn and transported by the centrifugal fan 3. The gas then passes through the filter assembly 2 and purification assembly 4, where particulate matter is filtered out and volatile organic gases are decomposed and removed, ensuring the operator's health is not harmed. The filter assembly 2 includes an outer shell 21, which is a three-way pipe structure. The top of the outer shell 21 is connected to the air inlet of the centrifugal fan 3, and the bottom of the outer shell 21 is threaded with an internal threaded cap 22. A filter cartridge 23 is sandwiched between the internal threaded cap 22 and the outer shell 21. The other end of the outer shell 21 is connected to... One end of the centrifugal fan 3 is connected to the air inlet of the centrifugal fan 3. The diameter of the air inlet of the centrifugal fan 3 is not greater than the inner diameter of the filter cartridge 23. When the centrifugal fan 3 is working, it creates a negative pressure at the slot of the dust collection hood 14, which allows the air to carry the gas and particulate matter generated during the polishing process into the interior of the outer casing 21 through the pipe. The particulate matter is effectively filtered and retained on the outside of the filter cartridge 23. The inner threaded cover 22 and the positioning protrusion 24 both have protruding positioning protrusions 24 that are adapted to be inserted into the inner side of the filter cartridge 23. The positioning protrusions 24 play a positioning and support role to ensure the stability of the filter cartridge 23 installation. There are multiple guide plates 43, which are equidistantly spaced inside the housing 41. The upper and lower adjacent guide plates 43 are staggered left and right. Multiple guide plates Plate 43 isolates a serpentine channel for gas flow inside the housing 41, effectively extending the gas treatment time within the housing 41, thereby improving the treatment effect of the purification component 4 on organic gases. The axis of the ultraviolet lamp 42 is perpendicular to the upper and lower end faces of the guide plate 43. The guide plate 43 has through-holes suitable for mounting the ultraviolet lamp 42. The ultraviolet light emitted by the ultraviolet lamp 42 is not blocked by the guide plate 43 and can effectively irradiate the surface of the guide plate 43, allowing the photocatalyst coated on the surface of the guide plate 43 to fully react with the organic gases. The bottom of the housing 41 is equipped with support legs 45, which are angle iron structures. The support legs 45 can provide stable support for the housing 41 and ensure the stability of the purification component 4 during operation.

[0022] The working principle of this technical solution is as follows: Power is connected, drive motor 11 is turned on, and after polishing wheel 13 reaches a stable speed, centrifugal fan 3 is started, ultraviolet lamp 42 is turned on, and preheating is performed for 3-5 minutes to fully activate the photocatalyst. The resin craft to be polished is held or fixed on the worktable, with the polishing area close to polishing wheel 13. The workpiece is moved at a uniform speed to ensure the polishing wheel fully covers the processing surface. The polishing time for each pass is controlled at 30-60 seconds to avoid local overheating that could lead to resin decomposition. The dust and VOCs generated during polishing are drawn into filter assembly 2 through dust collection hood 14 by centrifugal fan 3. Particles with a diameter >1μm are intercepted inside filter cartridge 23. The preliminarily purified gas enters purification assembly 4, where it comes into full contact with ultraviolet light and photocatalytic coating in a serpentine channel. VOCs are decomposed into CO2 and H2O, and the purified gas is discharged through outlet 44 in compliance with standards.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A polishing machine for processing resin handicrafts, characterized in that: The system includes a polishing mechanism (1), which includes a drive motor (11) that drives a drive shaft (12). A polishing wheel (13) is fixed on the drive shaft (12). A dust collection hood (14) is provided on the rear side of the polishing wheel (13). The dust collection hood (14) is installed at one end of an air collection pipe (15). The other end of the air collection pipe (15) is connected to both ends of a three-way pipe (16). The other end of the three-way pipe (16) is connected to a filter. The air inlet of the component (2) is connected to the air inlet of the centrifugal fan (3), and the air outlet of the centrifugal fan (3) is connected to the top side of the purification component (4). The purification component (4) includes a housing (41), and an air outlet (44) is provided on the bottom side of the housing (41). An ultraviolet lamp (42) is installed inside the housing (41), and a guide plate (43) with a photocatalytic coating is also installed inside the housing (41).

2. The polishing machine for processing resin crafts according to claim 1, characterized in that: The filter assembly (2) includes an outer shell (21), which is a three-way pipe structure. The top of the outer shell (21) is connected to the air inlet of the centrifugal fan (3). The bottom of the outer shell (21) is threaded with an inner threaded cover (22). A filter cartridge (23) is sandwiched between the inner threaded cover (22) and the outer shell (21). The other end of the outer shell (21) is connected to one end of the centrifugal fan (3). The diameter of the air inlet of the centrifugal fan (3) is not greater than the inner diameter of the filter cartridge (23).

3. A polishing machine for processing resin crafts according to claim 2, characterized in that: The internal threaded cap (22) and the positioning protrusion (24) are both formed with positioning protrusions (24) on their opposite end faces, which are adapted to be inserted into the inside of the filter cartridge (23).

4. A polishing machine for processing resin crafts according to claim 1, characterized in that: The number of the guide plates (43) is multiple, and they are equidistantly spaced inside the housing (41), with the upper and lower adjacent guide plates (43) staggered left and right.

5. A polishing machine for processing resin crafts according to claim 1, characterized in that: The axis of the ultraviolet lamp (42) is perpendicular to the upper and lower end faces of the guide plate (43), and the guide plate (43) is provided with a slot suitable for mounting the ultraviolet lamp (42).

6. A polishing machine for processing resin crafts according to claim 1, characterized in that: The bottom of the box (41) is equipped with a support leg (45), which is an angle iron structure.

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