CN117447645A - Acrylic resin and automobile wheel hub and molding equipment containing the resin - Google Patents

Abstract

The application discloses acrylic resin, which comprises, by weight, 25-55 parts of styrene, 10-20 parts of butyl acrylate, 10-15 parts of isooctyl acrylate, 5-12 parts of isobornyl methacrylate, 6-14 parts of methyl methacrylate, 20-50 parts of glycidyl methacrylate, 0.5-1.5 parts of an initiator, 30-55 parts of an organic solvent and 0.2-1 part of a chain transfer agent. Also disclosed is an automobile hub, the exterior of which is coated with the above-described acrylic resin. The forming device comprises a raw material processing device, a spraying device and a baking device, wherein the raw material processing device is used for combining acrylic resin and organic dibasic acid to obtain powder raw material, the spraying device is suitable for coating the powder raw material on an automobile hub, and the baking device is suitable for drying the coated automobile hub. The beneficial effects of this application: the acrylic resin has the characteristics of strong adhesive force, weather resistance, high gloss and color retention, high hardness, excellent impact property and the like.

Description

Acrylic resin and automobile wheel hub and molding equipment containing the resin

Technical field

The present application relates to the technical field of automotive wheel hub coatings, and in particular to an acrylic resin, automotive wheel hubs and molding equipment containing the resin.

Background technique

Wheel hub is a cylindrical metal component in a car tire that is centered on the axis and used to support the tire. In layman's terms, it is the part where the axle is installed in the center of the wheel. It is an important part that connects the brake drum (brake disc), wheel disc and axle shaft. Parts, also known as "rims" or "steel rims".

During the driving of the car, the wheel hub is easily stained with dirt. If it is not cleaned for a long time, it may be corroded and deformed, causing safety hazards. Therefore, during the production process of the wheel hub, it is necessary to paint the outer surface of the wheel hub. Currently, spray painting is generally used to form a paint film on the outside of the wheel hub for protection. However, the existing paint film has low hardness, poor gloss, and poor corrosion resistance and heat resistance, which will shorten the life of the car wheel hub. service life.

Contents of the invention

One of the objects of the present application is to provide an acrylic resin.

Another object of the present application is to provide an automobile wheel hub with acrylic resin.

Another object of the present application is to provide a molding equipment for applying and spraying acrylic resin on automobile wheels to form a coating film.

In order to achieve the above purpose, the technical solution adopted in this application is: an acrylic resin. According to the weight ratio, the acrylic resin raw materials include 25-55 parts of styrene, 10-20 parts of butyl acrylate, and 10-15 parts of isoacrylate. Octyl ester, 5-12 parts isobornyl methacrylate, 6-14 parts methyl methacrylate, 20-50 parts glycidyl methacrylate, 0.5-1.5 parts initiator, 30-55 parts organic solvent and 0.2 -1 part chain transfer agent.

An automobile wheel hub, the outer part of the automobile wheel hub is coated with the above-mentioned acrylic resin.

A kind of molding equipment, including raw material processing equipment, spraying equipment and baking equipment, the raw material processing equipment is used to combine the acrylic resin and the organic dibasic acid to obtain powder raw materials, the spraying equipment is suitable for the powder The raw material is coated on the automobile wheel hub, and then the baking device is suitable for drying the coated automobile wheel hub.

Preferably, the spraying equipment includes a workbench, a driving mechanism, a placing table and a turning mechanism. The driving mechanism is installed on the workbench. The placing table is rotatably installed on the workbench and interacts with the driving mechanism. connection, and the placing table is used to place the automobile wheel hub to be sprayed, and the turning mechanism is installed on the workbench and connected to the driving mechanism; when spraying the automobile wheel hub, the driving mechanism is suitable for The first action is used to drive the placing platform to rotate; at this time, the turning mechanism is adapted to remain stationary; when the automobile wheel hub is turned over, the driving mechanism is adapted to drive the turning mechanism through the second action The automobile wheel hub is rotated and turned over; at this time, the placing platform remains stationary.

Preferably, the turning mechanism includes a moving component and two clamping components. The moving component is installed on the placement platform and connected to the driving mechanism. The clamping component and the placement platform pass through a guide structure. Cooperate, and the clamping component is cooperatively connected with the moving component; the moving component is adapted to drive the clamping component to move under the driving mechanism, and then the clamping component is at the desired position. The first process, the second process, the third process and the fourth process are carried out under the action of the guide structure; wherein the first process: the clamping assembly is adapted to move until it is against the automobile wheel hub, so that the automobile wheel hub is clamped The second process: the clamping component is adapted to drive the automobile wheel hub to move upward to a distance set by the placing platform; the third process: the clamping component is adapted to rotate the automobile wheel hub through the matching structure Turn over; fourth process: the clamping assembly is adapted to move and reset, so that the turned over automobile wheel hub is released and placed on the placement platform.

Preferably, the clamping assembly includes a splint, an elastic telescopic rod and a moving plate. The moving plate is slidably installed in the workbench through a slider, and the two moving plates are located on both sides of the placement platform. , the moving plate is vertically slidingly matched with the slider and matched with the placing table through a guide structure, and the moving plate and the moving mechanism are connected and matched, and the two elastic telescopic rods are rotated and installed respectively At the upper end of the opposite side of the two moving plates, the clamping plate is installed on the end of the elastic telescopic rod, and the elastic telescopic rod and the moving plate cooperate through a clutch structure; when the first process is performed, During the second process and the fourth process, the clutch structure is in a limiting state, and the elastic telescopic rod remains stationary along the axial circumferential direction; when the third process is performed, the clutch structure is in a separated state, and the elastic telescopic rod remains stationary along the axial circumferential direction. The elastic telescopic rod rotates along the axial circumferential direction, so that the automobile wheel hub rotates and turns over.

Preferably, guide plates are installed on both sides of the bottom end of the workbench. The guide structure includes a guide groove provided on the guide plate and a guide block provided on the moving plate. The guide block and the guide groove Forming a sliding fit; the guide groove includes an upper cross section, a lower cross section and an inclined section, the upper cross section and the lower cross section are arranged parallel and horizontally, and there is a passage between the upper cross section and the lower cross section. The inclined sections are connected; when the guide block slides toward the inclined section along the lower transverse section, the clamping plate is adapted to move until it abuts against the automobile wheel hub; when the guide block slides along the inclined section When sliding toward the upper cross section, the splint is adapted to drive the car wheel upward to move away from the placement platform by a set distance; when the guide block slides along the upper cross section away from the inclined section , the elastic telescopic rod is suitable for rotating and flipping the automobile wheel hub through the matching structure.

Preferably, the matching structure includes a rotating shaft, a matching rack, a matching gear and an extrusion block. The extrusion block is installed outside the guide plate and close to the upper transverse section. The matching rack is elastically and slidingly installed on the guide plate. The rotating shaft is rotatably mounted on the lower end of the moving plate. The rotating shaft and the elastic telescopic rod are connected through a transmission structure. The matching gear is installed on the rotating shaft through a one-way bearing. The matching gear meshes with the matching rack;.

Preferably, when performing the third process, the matching rack moves under the wedge-shaped fit of the extrusion block to cause the meshed matching gears to rotate. At this time, the one-way bearing is in an engaged state, and thus the The rotating shaft drives the elastic telescopic rod to rotate through the transmission structure, so that the automobile wheel hub rotates and turns over.

Preferably, the moving assembly includes a rotating rod and two moving blocks. The rotating rod is rotatably mounted on the bottom end of the workbench and connected to the driving mechanism. The outer sides of the rotating rod are reciprocating wires. Rod segment, the two moving blocks cooperate with the two reciprocating screw rod segments respectively, and the moving blocks are sleeved on the outside of the moving plate; when performing the first process and the second process When performing the third process, the rotating rod rotates to drive the two moving blocks to move relative to each other; when performing the fourth process, the rotating rod rotates to drive the two moving blocks to move away from each other; thus achieving The turning process of automobile wheel hub.

Preferably, the driving mechanism includes a motor, a first transmission component and a second transmission component, the motor is installed at the bottom end of the workbench, and the input ends of the first transmission component and the second transmission component It is connected with the output end of the motor, the output end of the first transmission component is connected and matched with the placing platform, and the output end of the second transmission component is connected and matched with the rotating rod; when the motor is connected with When the rotation in the first direction performs the first action, the placing platform is adapted to rotate driven by the first transmission component. At this time, the rotating rod is disengaged from the second transmission component; when the motor When performing the second action by rotating in the second direction, the rotating rod is adapted to rotate under the driving of the second transmission component, and at this time, the placing platform is disengaged from the first transmission component.

Compared with the existing technology, the beneficial effects of this application are:

(1) The acrylic resin prepared by the formula provided by the invention has the characteristics of strong adhesion, high hardness, excellent impact resistance, etc., and also has good physical and mechanical properties, excellent weather resistance, chemical resistance and water resistance, and is durable It has high light color retention and is especially suitable for the exterior coating of automobile wheels.

(2) The present invention is provided with a turning mechanism and a driving mechanism. When spraying, the driving mechanism can drive the placement table to rotate through the first action, so that the outside of the wheel hub can be sprayed more evenly and comprehensively; the wheel hub needs to be sprayed When turning over, the driving mechanism can use the second action to drive the turning mechanism to rotate and turn over the wheel hub placed on the table, which saves time and effort and improves work efficiency.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is a schematic structural diagram of the spraying workbench of the present invention.

Figure 3 is a schematic structural diagram of the bottom end of the workbench of the present invention.

Figure 4 is an enlarged structural schematic diagram of position A of the present invention.

Figure 5 is an enlarged structural schematic diagram of position B of the present invention.

Figure 6 is a schematic structural diagram of the turning mechanism of the present invention.

Figure 7 is a partial structural diagram of the present invention.

Figure 8 is a schematic structural diagram of the elastic telescopic rod of the present invention.

Figure 9 is a schematic diagram of the clutch structure of the present invention.

Figure 10 is a schematic structural diagram of the guide groove of the present invention.

Figure 11 is a schematic diagram of the working state of the turning mechanism of the present invention.

Figure 12 is a schematic diagram of the working state of the turning mechanism of the present invention.

In the picture: 1. Workbench; 2. Placement table; 3. Turning mechanism; 301. Moving component; 3011. Rotating rod; 30111. Reciprocating screw section; 3012. Moving block; 302. Clamping component; 3021. Moving Plate; 3022, elastic telescopic rod; 30221, fixed cylinder; 30222, elastic piece; 30223, inner rod; 3023, plywood; 4, vacuum head; 5, guide structure; 501, guide groove; 5011, upper cross section; 5012 , lower transverse section; 5013, inclined section; 502, guide block; 6, driving mechanism; 601, motor; 602, first transmission component; 6021, worm gear; 6022, worm; 603, second transmission component; 6031, first transmission component Gear; 6032, second gear; 7, guide plate; 8, matching structure; 801, rotating shaft; 802, matching gear; 803, matching rack; 804, extrusion block; 9, transmission structure; 10, slider; 11 , clutch structure; 1101, limit block; 1102, limit slot.

Detailed ways

Below, the present application will be further described with reference to specific implementation modes. It should be noted that, on the premise that there is no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

In the description of this application, it should be noted that for directional words, such as the terms "center", "transverse", "vertical", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise" ", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be in a specific orientation. The construction and operation shall not be construed as limiting the specific scope of protection of this application.

It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

One of the preferred embodiments of the present application provides an acrylic resin prepared from raw materials with the following weight ratio. The acrylic resin raw materials include 25-55 parts of styrene, 10-20 parts of butyl acrylate, 10-15 parts Isooctyl acrylate, 5-12 parts isobornyl methacrylate, 6-14 parts methyl methacrylate, 20-50 parts glycidyl methacrylate, 0.5-1.5 parts

Initiator, 30-55 parts of organic solvent and 0.2-1 part of chain transfer agent.

It should be noted that when a numerical range is disclosed herein, the above range is deemed to be continuous and includes the minimum value and maximum value of the range, as well as every value between such minimum value and maximum value.

For example, "10-20 parts" includes but is not limited to: 20 parts, 19 parts, 18 parts, 17 parts, 16 parts, 15 parts, 14 parts, 13 parts, 12 parts, 11 parts and 10 parts, or any two parts The range of values.

It should be further explained that the initiator includes azobisisobutyronitrile, azobisisoheptanitrile, dibenzoyl peroxide, tert-butyl peroxide, dicumyl peroxide, and tert-butyl peroxybenzoate. Or at least one of tert-amyl peroxide. The organic solvent includes at least one of mesitylene, propylene glycol methyl ether acetate, butyl acetate, n-butanol, ethyl acetate, isobutanol, isopropyl alcohol, and ethylene glycol butyl ether. The chain transfer agent includes at least one of dodecyl mercaptan, n-octane mercaptan, lauryl mercaptan, thioethyl alcohol, thiopropanol or thioacetic acid.

The preparation method of acrylic resin includes the following steps:

(1) Monomer mixing: 25-55 parts of styrene, 10-20 parts of butyl acrylate, 10-15 parts of isooctyl acrylate, 5-12 parts of isobornyl methacrylate, 6-14 parts of methacrylic acid Add methyl ester and 20-50 parts of glycidyl methacrylate into a mixing container for mixing, and add 0.5-1.5 parts of initiator and 0.2-1 part of chain transfer agent and stir evenly to prepare a monomer mixture.

(2) Polymerization reaction: Add 30-55 parts of organic solvent into the reaction vessel, increase the pressure inside the reactor to 0.2MPa (referring to the pressure difference between the inside and outside of the reactor, that is, the pressure gauge reading), and raise the temperature to 130-150 under stirring. ℃, maintain this temperature and slowly add the above monomer mixture dropwise into the reaction vessel for polymerization. After the dropwise addition is completed, the reaction is maintained at reflux and stirred for 0.5-1.5 hours; then a certain amount of initiator is added, and a second stirring at reflux is carried out for 1.5-2.5 hours. h.

(3) Post-processing: Normal pressure distillation can be used to remove the solvent. When the material temperature rises to 180°C, vacuum distillation is used to remove the solvent. Maintain the vacuum at 0.08-0.1MPa and stabilize the material temperature in the kettle at 180°C. -200℃ until there is no distillate. Release the vacuum, discharge the material while it is hot, and then cool and filter to obtain epoxy acrylic resin.

The prepared epoxy acrylic resin has good adhesion, wear resistance and weather resistance, as well as chemical stability, transparency, flexibility and processability, and is especially suitable for coating films on automobile wheels.

This application also provides an automobile wheel hub. The outer part of the automobile wheel hub is coated with the above-mentioned acrylic resin. The automobile wheel hub anti-corrosion coating prepared with the resin has the characteristics of strong adhesion, high hardness, and excellent impact resistance, and the anti-corrosion coating also has the characteristics of strong adhesion, high hardness, and excellent impact resistance. It has good physical and mechanical properties, excellent weather resistance, chemical resistance and water resistance, and high gloss and color retention.

In order to make the coating performance of automobile wheels better, the application method of acrylic resin is to combine acrylic resin with organic dibasic acid. The organic dibasic acid is preferably lauric acid. Therefore, this application also provides a molding equipment, including raw material processing equipment, spraying equipment and baking equipment (not shown). The raw material processing equipment is used to combine acrylic resin and organic dibasic acid to obtain powder raw materials. The spraying equipment The spray gun D can apply the powder raw material to the automobile wheel hub, and finally the baking equipment can dry the coated automobile wheel hub to obtain a coating film on the outside of the automobile wheel hub.

Specifically, as shown in Figure 1, the raw material processing equipment includes mixing equipment A, extrusion equipment B and crushing and screening equipment C. The epoxy acrylic resin and organic dibasic acid are mixed and stirred through the mixing equipment A, and then the mixed The raw materials are transported to the extrusion equipment B for extrusion. The extruded raw materials are crushed and screened through the crushing and screening equipment C to obtain the required powder. Finally, the powder is sprayed on the wheel hub through the spray gun D and baked through the baking equipment. , you can get the required car wheel hub coating. This coating can greatly improve the resistance of automobile wheels, making them more wear-resistant and corrosion-resistant. Not only that, the coating film can also enhance the gloss and beauty of the car wheels, making them more attractive and greatly extending the service life of the car wheels.

It should be noted that mixing equipment A, extrusion equipment B, crushing equipment C, spraying equipment and baking equipment are all common knowledge to those skilled in the art, so their structures and working principles will not be described in detail.

In this embodiment, as shown in Figure 1-12, the spraying equipment includes a workbench 1, a driving mechanism 6, a placing table 2 and a turning mechanism 3. The driving mechanism 6 is installed at the bottom of the workbench 1, and the placing table 2 can The wheel hub to be sprayed is placed on the placement table 2. The turning mechanism 3 is installed on the workbench 1 and is also connected to the driving mechanism 6.

Specifically, when we are spraying the wheel hub on the placement table 2, as shown in Figure 1, the staff can hold the spray gun D to spray the wheel hub, and the driving mechanism 6 can drive the placement table 2 through the first action during spraying. Rotation is performed, and the turning mechanism 3 can remain stationary at this time. In this way, when spraying, the staff can spray the outside of the wheel hub more evenly and comprehensively, that is, there is no need to walk around the wheel hub when spraying, and at the same time, the problems of spray leakage and uneven spraying caused by improper operation are reduced. Moreover, the spraying process is simplified, the labor intensity of workers is reduced, and work efficiency is improved.

After the spraying is completed, we need to turn over the wheel hub so that the unsprayed areas of the wheel hub can be sprayed. At this time, the driving mechanism 6 can drive the turning mechanism 3 to rotate and turn over the wheel hub on the placement table 2 through the second action. , while the placing table 2 remains stationary; after the turning is completed, the driving mechanism 6 can drive the placing table 2 to rotate through the first action, and then spray the turned wheel hub evenly.

It can be seen that the wheel hub can rotate during spraying and can be automatically turned over after spraying. This eliminates the need for manual turning, which greatly improves work efficiency and spraying quality. The rotation and automatic turning function of the wheel hub make the spraying process more uniform and avoid the problem of uneven spraying. At the same time, no manual turning is required, which also reduces labor costs and work risks.

In one embodiment of the present application, as shown in Figure 3, the turning mechanism 3 includes a moving component 301 and two clamping components 302. The moving component 301 is installed on the placement table 2 and connected to the driving mechanism 6. The assembly 302 and the placement platform 2 are matched through the guide structure 5 , and the clamping assembly 302 and the moving assembly 301 are also connected in a matching manner.

Specifically, the moving component 301 can drive the clamping component 302 to move under the second action of the driving mechanism 6. During the movement, the clamping component 302 can perform the first process and the second process under the action of the guide structure 5. process, tertiary process and quaternary process. in

The first process: the two clamping assemblies 302 can move relative to each other until they abut the wheel hub, so as to clamp and fix the wheel hub;

The second process: the clamping assembly 302 can drive the clamped hub upward to move away from the placement platform 2 by a set distance. Of course, this distance must be greater than the radius of the hub, that is, it will not interfere with the rotation of the hub. The specific distance is set according to the actual situation.

The third process: the clamping component 302 can rotate through the matching structure 8 to turn the wheel hub;

The fourth process: the clamping component 302 moves and resets under the action of the moving component 301, so that the turned-over wheel hub is loosened and placed on the placing table 2, thereby completing the turning-over process.

In this embodiment, as shown in Figures 3, 7 and 9, the clamping component 302 includes a clamping plate 3023, an elastic telescopic rod 3022 and a moving plate 3021. The moving plate 3021 is slidably installed in the workbench 1 through the slider 10, and Two moving plates 3021 are located on the left and right sides of the placement table 2 respectively. The moving plates 3021 slide vertically with the slider 10. It can be understood that the moving plates 3021 can slide horizontally on the workbench 1 or move vertically. And the moving plate 3021 and the placing table 2 cooperate through the guide structure 5. Two elastic telescopic rods 3022 are respectively rotatably installed at the upper ends of the opposite sides of the two moving plates 3021, and the splint 3023 is fixedly installed on the two elastic telescopic rods 3022. on the opposite end, and the elastic telescopic rod 3022 and the moving plate 3021 cooperate through the clutch structure 11.

Specifically, when the first process, the second process and the fourth process are carried out, the clutch structure 11 is in the limiting state, and the elastic telescopic rod 3022 remains stationary along the axial circumferential direction. It can be understood that at this time, the elastic telescopic rod 3022 remains stationary along the axial circumferential direction. 3022 will not rotate, so that the clamped hub will not rotate.

When the third process is performed, that is, when the wheel hub is rotated and turned over, the clutch structure 11 will be in a separated state, and then the elastic telescopic rod 3022 will rotate along the axial circumferential direction. It can be understood that at this time, the elastic telescopic rod 3022 It can drive the clamped wheel hub to rotate and turn over.

Specifically, as shown in Figure 8, the elastic telescopic rod 3022 includes a fixed cylinder 30221, an elastic member 30222 and an inner rod 30223. That is, the fixed cylinder 30221 is rotatably installed on the moving plate 3021, and the inner rod 30223 is elastically slidably installed on the fixed rod 30222 through the elastic member 30222. In the barrel 30221, the elastic member 30222 is preferably a spring, which is always in a compressed state, and the splint 3023 is fixedly installed at the end of the inner rod 30223.

Of course, the splint 3023 preferably adopts an arc-shaped structure consistent with the outside of the automobile wheel hub, so that it can be stably clamped with the automobile wheel hub.

In this embodiment, as shown in Figures 3, 7 and 10, guide plates 7 are fixedly installed on both sides of the bottom end of the workbench 1, and the guide structure 5 includes guide grooves 501 provided on the guide plate 7 and The guide block 502 provided on the moving plate 3021 forms a sliding fit with the guide groove 501 .

Further, as shown in Figure 5 and Figure 10, in order to achieve better cooperation between the guide block 502 and the guide groove 501, the guide block 502 can use a roller, and the roller is rotatably installed on the moving plate 3021, that is, between the roller and the guide groove 501 Rolling fit.

Specifically, as shown in Figure 10, the guide groove 501 includes an upper cross section 5011, a lower cross section 5012 and an inclined section 5013. The upper cross section 5011 and the lower cross section 5012 are parallel and horizontally arranged. Between the upper cross section 5011 and the lower cross section 5012 are connected through the inclined section 5013. It can be understood that, as shown in Figure 11 and Figure 12:

When performing the first process, that is, when the guide block 502 slides along the lower transverse section 5012 to the inclined section 5013, the two clamping plates 3023 will move relative to each other until they are against both sides of the wheel hub, and the clamping plates 3023 are preferably adapted to the wheel hub. The arc-shaped structure is used to clamp and fix the wheel hub.

When performing the second process, that is, when the guide block 502 slides up the horizontal section 5011 along the inclined section 5013, since the guide block 502 moves upward in an inclined manner, the hub clamped by the clamping plate 3023 will be driven upward, and then Make the wheel hub move up and away from the placement platform 2 by a set distance. It should be noted that during the upward movement of the splint 3023, there is also partial displacement in the horizontal direction, that is, the two moving plates 3021 will also move relative to each other. At this time, the elastic telescopic rod 3022 will be compressed and shortened, that is, the inner rod 30223 moves toward the fixed cylinder. The inside of 30221 moves while the hub is always clamped.

During the third process, that is, when the guide block 502 slides along the upper transverse section 5011 in the direction away from the inclined section 5013, the elastic telescopic rod 3022 can cause the wheel hub to rotate and turn over through the matching structure 8.

As shown in Figures 5 and 6, the matching structure 8 includes a rotating shaft 801, a matching rack 803, a matching gear 802 and an extrusion block 804. The extrusion block 804 is fixedly installed outside the guide plate 7 and close to the upper cross section 5011. The rack 803 is installed at the lower end of the moving plate 3021 through spring elastic sliding, and the rotating shaft 801 is rotationally installed at the lower end of the moving plate 3021. The rotating shaft 801 and the elastic telescopic rod 3022 are connected through the transmission structure 9, and the matching gear 802 passes through the one-way The bearing is installed on the rotating shaft 801, and the matching gear 802 and the matching rack 803 mesh.

Specifically, as shown in Figure 7, the extrusion block 804 can adopt a right-angled trapezoidal structure; and the transmission structure 9 can adopt a chain transmission structure or a belt transmission structure.

When the third process is performed, that is, when the guide block 502 moves along the upper transverse section 5011 with the moving plate 3021, the matching rack 803 moves under the wedge-shaped fit of the extrusion block 804. It can be understood that the matching rack 803 It will move along the hypotenuse of the right-angled trapezoidal extrusion block 804, and the hypotenuse will squeeze and move the mating rack 803, so that the mating gear 802 meshing with the mating rack 803 rotates. At this time The one-way bearing is in an engaged state, that is, the matching gear 802 will rotate with the rotating shaft 801, and then the rotating shaft 801 can drive the elastic telescopic rod 3022 to rotate through the transmission structure 9. Of course, it is preferably rotated one hundred and eighty degrees to make the wheel hub rotate. Turn over.

In this embodiment, as shown in Figures 3 and 6, the moving assembly 301 includes a rotating rod 3011 and two moving blocks 3012. The rotating rod 3011 is installed horizontally at the bottom of the workbench 1 and is connected to the driving mechanism 6. , and the outer sides of the rotating rod 3011 are reciprocating screw rod segments 30111, the two moving blocks 3012 and the two reciprocating screw rod segments 30111 cooperate, and the moving block 3012 is sleeved on the outside of the moving plate 3021, that is, the moving plate 3021 can Move up and down along the moving block 3012.

Specifically, when performing the first process, the second process and the third process, the rotating rod 3011 rotates to drive the two moving blocks 3012 to move relative to each other; when the fourth process is performed, the rotating rod 3011 rotates to drive the two moving blocks 3012 Move oppositely; thereby realizing the turning process of the wheel hub.

In this embodiment, as shown in Figure 4, the driving mechanism 6 includes a motor 601, a first transmission component 602 and a second transmission component 603. The motor 601 can be fixedly installed on the bottom end of the workbench 1 through bolts, and the first transmission component 602 is connected with the input end of the second transmission component 603 and the output end of the motor 601, the output end of the second transmission component 603 is connected and matched with the rotating rod 3011, and the output end of the first transmission component 602 is connected and matched with the placement table 2, It can be understood that the placement platform 2 can be rotatably mounted on the placement platform 2 through the support column, and the output end of the first transmission assembly 602 is connected and matched with the support column.

When the motor 601 rotates in the first direction to perform the first action, the placing table 2 can rotate driven by the first transmission component 602. At this time, the rotating rod 3011 is disengaged from the second transmission component 603. It can be understood that, At this time, the second transmission component 603 cannot drive the rotating rod 3011 to rotate, and the rotating rod 3011 is in a stationary state.

When the motor 601 rotates in the second direction to perform the second action, the rotating rod 3011 can rotate under the driving of the second transmission component 603. At this time, the placement table 2 and the first transmission component 602 are disengaged. It can be understood that, At this time, the first transmission component 602 cannot drive the placing platform 2 to rotate, and the placing platform 2 is in a stationary state.

Specifically, as shown in Figure 4, this application does not limit the specific structure of the first transmission component 602, and only provides a specific structure for reference below:

The first transmission assembly 602 includes a worm gear 6021 and a worm 6022, where the worm 6022 is connected to the drive rod connected to the output shaft of the motor 601, and the worm gear 6021 is installed on the support column of the placement table 2 through a one-way bearing; when the motor 601 is connected to the first When performing the first action of rotation in the direction, we can assume that the motor 601 rotates forward. At this time, the worm 6022 drives the worm gear 6021 to rotate, and the one-way bearing is in an engaged state, thereby causing the placement table 2 to rotate; and the motor 601 rotates in the second direction. When the direction of rotation is performed in the second action, we assume that the motor 601 is reversed. At this time, the worm 6022 drives the worm gear 6021 to rotate. However, the one-way bearing is in a free state, and the worm gear 6021 will not drive the support column to rotate, thereby causing the placement table 2 to rotate. is in a static state.

It should be noted that the worm gear 6021 and the worm 6022 can also be replaced by two bevel gears, that is, the placement table 2 is driven to rotate through the meshing transmission of the bevel gears. Of course, one of the bevel gears must be installed through a one-way bearing. .

Furthermore, as shown in Figure 4, this application does not limit the specific structure of the second transmission component 603. The following only provides a specific structure for reference:

The second transmission assembly 603 includes a first gear 6031 and a second gear 6032, where the second gear 6032 is installed on the driving rod connected to the output shaft of the motor 601, and the first gear 6031 is installed on the rotating rod 3011 through a one-way bearing. When the motor 601 rotates in the second direction to perform the second action, we assume that the motor 601 rotates in reverse and the one-way bearing is in an engaged state. At this time, the second gear 6032 acts on the first gear 6031 to rotate, which can drive the rotating rod 3011 to perform the second action. Rotation; when the motor 601 performs the first action by rotating in the first direction, we can assume that the motor 601 rotates forward. At this time, the one-way bearing is in a free state, that is, at this time, the second gear 6032 acts on the first gear 6031 to rotate, However, the first gear 6031 will not drive the rotating rod 3011 to rotate, and thus will not cause the turning mechanism 3 to drive.

It should be noted that the second transmission assembly 603 can also adopt a chain transmission or a belt transmission. Of course, one of the sprockets or one of the pulleys in the transmission must be installed through a one-way bearing.

In this embodiment, as shown in Figure 9, the clutch structure 11 includes a limiting block 1101 and two limiting grooves 1102. The limiting block 1101 preferably adopts a spherical structure, and the limiting groove 1102 adopts a ball that is adapted to the limiting block 1101. Groove shape, when the limit block 1101 and the limit groove 1102 match, the clutch structure 11 is in the limit state; when the limit block 1101 and the limit groove 1102 are misaligned and separated, the clutch structure 11 is in the separated state; while the limit block There are many ways to set 1101 and limit slot 1102, including but not limited to the following two:

Method 1: The limiting block 1101 is elastically slidably installed in the moving plate 3021 through a spring, and the two limiting grooves 1102 are symmetrically provided on the elastic telescopic rod 3022.

Method 2: The limit block 1101 is installed on the elastic telescopic rod 3022 through spring elastic sliding, and the two limit grooves 1102 are symmetrically arranged in the moving plate 3021.

It can be understood that in the initial state, the limiting block 1101 cooperates with one of the limiting grooves 1102 under the action of the spring. At this time, the clutch structure 11 is in the limiting state; and when the wheel hub is turned over, the elasticity When the telescopic rod 3022 rotates, the limit block 1101 will be forcibly separated from the limit groove 1102. When the wheel hub is turned one hundred and eighty degrees, the limit block 1101 will cooperate with another limit groove 1102, thereby causing the clutch to be released. Structure 11 is limited again.

The working principle of the present invention is:

First, the wheel hub to be sprayed is placed on the placement table 2. The staff holds the spray gun D to spray the wheel hub. At this time, the starting motor 601 rotates forward, the worm 6022 drives the worm gear 6021 to rotate, and the one-way bearing on the worm gear 6021 is engaged. state, thereby causing the placement table 2 to rotate, thereby evenly spraying the outside of the wheel hub.

After the spraying is completed, we need to spray the wheel hub over. At this time, the starter motor 601 rotates in reverse, and the one-way bearing on the worm gear 6021 will be in a free state, so the placement table 2 will stop rotating; at this time, the second gear 6032 Acting on the rotation of the first gear 6031, the one-way bearing on the first gear 6031 is in an engaged state, which can drive the rotating rod 3011 to rotate, and the two reciprocating screw segments 30111 on the rotating rod 3011 will act on the two moving blocks. 3012 relative movement.

The first process: when the guide block 502 slides along the lower transverse section 5012 to the inclined section 5013, as shown in figure a in Figure 11, the two moving blocks 3012 will drive the two moving plates 3021 to move relative to each other, thereby causing the two moving plates 3021 to move relative to each other. Each splint 3023 moves relatively until it abuts the wheel hub to clamp and fix the wheel hub.

The second process: when the guide block 502 slides up the horizontal section 5011 along the inclined section 5013, as shown in Figure 11 b, the two moving plates 3021 will move upward relative to each other, so the clamped plate 3023 The wheel hub will be driven upward, and then the wheel hub will move upward by a distance set by the placement table 2. This distance will not interfere with the rotation of the wheel hub.

The third process: when the guide block 502 slides along the upper cross section 5011 in the direction away from the inclined section 5013, as shown in Figure 12 (c), the two moving plates 3021 will move relative to each other again, and the matching rack 803 will move along the Move along the hypotenuse of the extrusion block 804 with a right-angled trapezoid structure, the hypotenuse will squeeze and move the mating rack 803, so that the mating gear 802 meshing with the mating rack 803 rotates. At this time, the one-way The bearing is in an engaged state, that is, the matching gear 802 will rotate with the rotating shaft 801, and then the rotating shaft 801 can drive the elastic telescopic rod 3022 to rotate one hundred and eighty degrees through the transmission structure 9, so that the wheel hub rotates and turns over, and then the clutch structure 11. Limit the turned wheel hub again.

The fourth process: when the guide block 502 returns from the upper cross section 5011 to the lower cross section 5012, as shown in diagram d in Figure 12, at this time, after the two moving plates 3021 move relatively to the extreme position, the reciprocating screw rod Under the action of segment 30111, the two moving blocks 3012 will drive the two moving plates 3021 to move away from each other. At this time, although the matching rack 803 will move and reset under the elastic force of the spring, the matching gear 802 will The one-way bearing is in a free state, so that the rotating shaft 801 drives the wheel hub to flip and reset through the transmission structure 9, and then resets to the lower cross section 5012 through the inclined section 5013, that is, the flipped hub moves down to the placement platform 2, and then the two A splint 3023 is away from the hub to loosen it.

It should be noted that during the process of clamping and turning over, the two elastic telescopic rods 3022 will move relative to each other, but are always in an elastically telescopic state and will not interfere with the turning process; while the hub is being turned over. During spraying, multiple dust collector heads 4 can also be installed on the workbench 1. Of course, the dust collector heads 4 are connected to the dust collector equipment to adsorb the sprayed powder and reduce the impact on the working environment.

It should be further explained that after clamping and turning over, if the clamping position has been coated before turning over, the clamping plate 3023 may cause damage to the coated coating film when clamped, so the staff When coating, you can first avoid the corresponding clamping part of the car wheel hub, wait for the car wheel hub to be turned over, and then spray at the end, thereby improving the quality of the coating film after spraying.

The above describes the basic principles, main features and advantages of the present application. Those skilled in the industry should understand that the present application is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and descriptions is only the principle of the present application. The present application will have various applications without departing from the spirit and scope of the present application. changes and improvements that fall within the scope of the claimed application. The scope of protection claimed in this application is defined by the appended claims and their equivalents.

Claims (10)

1. The acrylic resin is characterized by comprising, by weight, 25-55 parts of styrene, 10-20 parts of butyl acrylate, 10-15 parts of isooctyl acrylate, 5-12 parts of isobornyl methacrylate, 6-14 parts of methyl methacrylate, 20-50 parts of glycidyl methacrylate, 0.5-1.5 parts of an initiator, 30-55 parts of an organic solvent and 0.2-1 part of a chain transfer agent.

2. An automobile hub, wherein the exterior of the automobile hub is coated with the acrylic resin of claim 1.

3. A forming apparatus comprising a raw material processing apparatus for combining the acrylic resin with an organic dibasic acid to obtain a powder raw material, a spraying apparatus adapted to apply the powder raw material to the automobile hub, and a baking apparatus adapted to dry the applied automobile hub.

4. A forming apparatus as claimed in claim 3, wherein the spraying apparatus comprises:

a work table;

the driving mechanism is arranged on the workbench;

the placing table is rotatably arranged on the workbench and connected with the driving mechanism, and the placing table is used for placing an automobile hub to be sprayed; and

the turnover mechanism is arranged on the workbench and is connected with the driving mechanism;

when the automobile hub is sprayed, the driving mechanism is suitable for driving the placing table to rotate through a first action; the turn-over mechanism is adapted to remain stationary at this time;

when the turning over of the automobile hub is carried out, the driving mechanism is suitable for driving the turning over mechanism to rotationally turn over the automobile hub through a second action; the rest table is kept stationary at this point.

5. The molding apparatus of claim 4, wherein: the turnover mechanism comprises a moving assembly and two clamping assemblies, the moving assembly is arranged on the placing table and connected with the driving mechanism, the clamping assemblies are matched with the placing table through a guide structure, and the clamping assemblies are matched and connected with the moving assembly; the moving component is suitable for being driven by the driving mechanism to drive the clamping component to move, and then the clamping component performs a first process, a second process, a third process and a fourth process under the action of the guiding structure; wherein the method comprises the steps of

The first process comprises the following steps: the clamping assembly is suitable for moving until the clamping assembly abuts against the automobile hub, so that the automobile hub is clamped and fixed;

the second process is as follows: the clamping assembly is suitable for driving the automobile hub to move upwards to be away from the placing table by a set distance;

and a third process: the clamping assembly is suitable for enabling the automobile hub to rotate and turn over through a matching structure;

fourth process: the clamping assembly is suitable for moving and resetting so that the turned automobile hub is loosened and placed on the placing table.

6. The molding apparatus of claim 5, wherein: the clamping assembly comprises clamping plates, elastic telescopic rods and moving plates, wherein the moving plates are slidably installed in the workbench through sliding blocks, the two moving plates are respectively positioned on two sides of the placing table, the moving plates are vertically slidably matched with the sliding blocks and matched with the placing table through guide structures, the moving plates and the moving mechanisms are connected and matched, the two elastic telescopic rods are respectively rotatably installed at the upper ends of two opposite sides of the two moving plates, the clamping plates are installed at the ends of the elastic telescopic rods, and the elastic telescopic rods are matched with the moving plates through clutch structures;

when the first process, the second process and the fourth process are carried out, the clutch structure is in a limiting state, and then the elastic telescopic rod is kept static along the axial circumferential direction;

when the third process is carried out, the clutch structure is in a separation state, and then the elastic telescopic rod rotates along the axial circumferential direction, so that the automobile hub rotates and turns over.

7. The molding apparatus of claim 6, wherein: the guide plates are arranged on two sides of the bottom end of the workbench, the guide structure comprises guide grooves arranged on the guide plates and guide blocks arranged on the moving plate, and the guide blocks and the guide grooves form sliding fit;

the guide groove comprises an upper transverse section, a lower transverse section and an inclined section, wherein the upper transverse section and the lower transverse section are parallel and horizontally arranged, and the upper transverse section and the lower transverse section are communicated through the inclined section;

when the guide block slides along the lower transverse section to the inclined section, the clamping plate is suitable for moving until the clamping plate abuts against the automobile hub;

when the guide block slides along the inclined section to the upper transverse section, the clamping plate is suitable for driving the automobile hub to move upwards to be away from the placing table by a set distance;

when the guide block slides along the upper transverse section far away from the inclined section, the elastic telescopic rod is suitable for enabling the automobile hub to rotate and turn over through the matching structure.

8. The molding apparatus of claim 7, wherein: the matching structure comprises a rotating shaft, a matching rack, a matching gear and an extrusion block, wherein the extrusion block is arranged outside the guide plate and is close to the upper transverse section, the matching rack is elastically and slidably arranged at the lower end of the moving plate, the rotating shaft is rotatably arranged at the lower end of the moving plate, the rotating shaft and the elastic telescopic rod are in matching connection through a transmission structure, the matching gear is arranged on the rotating shaft through a one-way bearing, and the matching gear is meshed with the matching rack;

when the third process is carried out, the matched racks move under the wedge-shaped matching of the extrusion blocks so that the meshed matched gears rotate, at the moment, the one-way bearings are in a meshed state, and then the rotating shaft drives the elastic telescopic rods to rotate through the transmission structure so that the automobile hubs turn over in a rotating mode.

9. The molding apparatus of claim 8, wherein: the movable assembly comprises a rotating rod and two movable blocks, the rotating rod is rotatably arranged at the bottom end of the workbench and is connected with the driving mechanism, the two sides of the outer part of the rotating rod are provided with reciprocating screw rod sections, the two movable blocks are respectively matched with the two reciprocating screw rod sections, and the movable blocks are sleeved outside the movable plate; when the first process, the second process and the third process are carried out, the rotating rod rotates to drive the two moving blocks to move relatively; when the fourth process is carried out, the rotating rod rotates to drive the two moving blocks to move oppositely; and further realizing the turn-over process of the automobile hub.

10. The molding apparatus of claim 9, wherein: the driving mechanism comprises a motor, a first transmission assembly and a second transmission assembly, the motor is arranged at the bottom end of the workbench, the input ends of the first transmission assembly and the second transmission assembly are connected with the output end of the motor, the output end of the first transmission assembly is connected with the placing table, and the output end of the second transmission assembly is connected with the rotating rod;

when the motor rotates in a first direction to perform a first action, the placement table is suitable for being driven by the first transmission assembly to rotate, and the rotating rod is disengaged from the second transmission assembly;

when the motor rotates in a second direction to perform a second action, the rotating rod is suitable for being driven by the second transmission assembly to rotate, and the placing table is disengaged from the first transmission assembly.