Automatic spraying equipment for hub low-pressure casting mold

Abstract

According to the automatic spraying equipment for the hub low-pressure casting mold, a diaphragm pump is connected with a coating supply pipeline I and extracts coating from a coating barrel, the extracted coating can flow back into the coating barrel again through a color changing device to form a supply loop, and the color changing device can automatically select the needed coating type through an electric control system; the mold temperature measuring device is used for measuring the temperature of the low-pressure casting mold placed on the mold positioning platform in real time and feeding back temperature data to the electric control system, the laser red line emitter is used for emitting a positioning red line, and when the mold positioning platform returns to the original point, the laser red line emitter emits the positioning red line. The center of the positioning red line coincides with the center of the mold positioning platform. In the automatic spraying process of the hub low-pressure casting mold, the problems of closed-loop supply of the coating, full-size mold positioning and automatic temperature monitoring in the mold spraying process can be solved, and manual mold coating spraying work can be replaced.

Description

Technical Field

[0001] The utility model relates to a mold spraying technology, and more specifically to an automatic spraying device for a wheel hub low-pressure casting mold. Background Art

[0002] Usually, during the low-pressure casting production of aluminum alloy wheels, the protective coating on the surface of the low-pressure casting mold used will fall off to varying degrees after a certain period of production. Therefore, it is necessary to regularly unload the production mold, remove the coating on the mold surface, and re-spray the protective coating on the mold surface.

[0003] At present, the mold coating spraying work first requires the mold temperature to be heated to 240°C in the mold heating furnace, and then the mold is transferred to the spraying platform to wait for manual spraying of the coating.

[0004] Before manual spraying, the sprayer must first mix the paint and adjust the spray volume and fan shape of the hand spray gun. After the spray gun is debugged, use a temperature measuring gun to detect that the mold temperature is between 230℃-240℃, and then the paint can be sprayed manually. During the spraying process, the spray gun is always about 10cm away from the mold surface, and the entire spraying process lasts about 20 minutes. Due to the high temperature of the mold surface, especially in summer work, the sprayer is in a high-temperature spraying environment, especially when holding the spray gun, the hands and face are in a high-temperature baking state for a long time, and the spraying quality and consistency of the mold protection coating cannot be effectively guaranteed. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide an automatic spraying equipment for low-pressure casting molds of wheel hubs, which solves the closed-loop supply of paint during mold spraying, the positioning of full-size molds, the automatic temperature monitoring during mold spraying, and the quality consistency problem. The utility model is easy to operate, safe and reliable. To use this equipment, you only need to hoist the heated mold to the mold positioning platform, and after the mold is positioned, start the equipment for automatic spraying. The consistency and spraying quality of the mold protection coating spraying process are guaranteed, and production efficiency is improved.

[0006] According to the utility model, an automatic spraying device for a low-pressure casting mold of a wheel hub is provided, comprising: a diaphragm pump, a paint bucket, a paint supply pipeline I, a color changing device, a peristaltic pump, a paint supply pipeline II, a spray gun, a manipulator for fixing the spray gun, a mold positioning platform, a mold temperature measuring device, a laser red line transmitter, and an electronic control system, wherein the diaphragm pump is connected to the paint supply pipeline I and extracts paint from the paint bucket, and the extracted paint can flow back into the paint bucket via the color changing device to form a feeding loop, the color changing device can automatically select the type of paint required for use by the electronic control system, and the paint is extracted by the peristaltic pump and supplied to the spray gun via the paint supply pipeline II, the mold temperature measuring device is used to measure the temperature of the low-pressure casting mold placed on the mold positioning platform in real time, and feed back the temperature data to the electronic control system, the laser red line transmitter is used to emit a positioning red line, and when the mold positioning platform returns to the origin, the center of the positioning red line coincides with the center of the mold positioning platform.

[0007] Preferably, the automatic spraying equipment for the low-pressure casting mold of the wheel hub also includes: a mold positioning platform base, a Z-axis rotating motor, an X-axis manual crank, a Y-axis manual crank, and a Z-axis rotating handle, wherein the mold positioning platform is fixedly connected to the mold positioning platform base, the Z-axis rotating motor is controlled by the Z-axis rotating handle to realize the Z-axis rotation function of the mold positioning platform, the X-axis manual crank is used to realize the lateral movement function of the mold positioning platform in the X-axis direction, and the Y-axis manual crank is used to realize the lateral movement function of the mold positioning platform in the Y-axis direction.

[0008] Preferably, the automatic spraying equipment for the low-pressure casting mold of the wheel hub also includes: two sets of diaphragm pumps, two sets of paint buckets, both of which are connected to two sets of supply pipelines I of the color changing device. When the color changing device selects a paint corresponding to one of the sets, the other paint flows back to the paint bucket through the paint supply pipeline I.

[0009] Preferably, the automatic spraying equipment for the low-pressure casting mold of the wheel hub also includes: a fixing bracket for fixing the diaphragm pump, the color changing device, the peristaltic pump, the mold temperature measuring device and the laser red line transmitter.

[0010] The beneficial effects of the utility model are as follows: the automatic spraying equipment for low-pressure casting molds of wheel hubs is easy to operate. On-site workers only need to position the mold and start the automatic spraying program to complete the automatic spraying of full-size molds. This avoids the problem that the spraying quality and consistency cannot be guaranteed due to the high-temperature spraying environment and manual hand-held spray gun work. This improves production efficiency and automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic side view of an automatic spraying device for a low-pressure casting wheel hub mold is shown. DETAILED DESCRIPTION

[0012] The exemplary embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The exemplary embodiments described below and shown in the accompanying drawings are intended to teach the principles of the present invention, so that those skilled in the art can implement and use the present invention in several different environments and for several different applications. Therefore, the scope of protection of the present invention is defined by the attached claims, and the exemplary embodiments are not intended to be, and should not be considered to be, a restrictive description of the scope of protection of the present invention. Moreover, for the convenience of description, the sizes of the various parts shown in the accompanying drawings are not necessarily drawn according to the actual proportional relationship, and the orientation description, such as the orientation or position relationship indicated by the upper, lower, left, right, top, bottom, etc., are all based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Throughout the accompanying drawings, the same elements are represented by the same or similar figure marks. Conventional structures or local structures will be omitted when they may cause confusion or difficulty in observing and understanding the understanding of the present disclosure. Unless otherwise specifically stated, the order and numerical values ​​of components and assembly steps set forth in the embodiments do not limit the scope of the present invention.

[0013] The utility model is further described in detail below in conjunction with the embodiments and drawings.

[0014] like Figure 1 As shown, an embodiment of the utility model provides an automatic paint spraying equipment for a low-pressure casting mold of a wheel hub, including a diaphragm pump 1, a paint bucket 2, a paint supply pipeline I3, a color changing device 4, a peristaltic pump 5, a paint supply pipeline II6, a manipulator base 7, a spray gun 8, a six-axis collaborative manipulator 9, a mold positioning platform base 10, a Z-axis rotating motor 11, a mold positioning platform 12, an X-axis manual crank 13, a Y-axis manual crank 14, a Z-axis rotating handle 15, a mold temperature measuring device 16, a laser red line transmitter 17, a fixed bracket 18, and an electronic control system 19.

[0015] The diaphragm pump 1 is connected to a fixing bracket 18, such as an aluminum alloy, by bolts, and the fixing bracket 18 is fixed to the horizontal ground by anchor bolts. The liquid paint is stored in the paint bucket 2, and the diaphragm pump 1 is connected to the paint supply pipeline I3 by a hose connector, and the paint is extracted from the paint bucket 2, and the extracted paint flows into the color changing device 4 through the paint supply pipeline I3. The paint supply pipeline I3 also includes a return pipe (the corresponding valve is not shown) that returns to the paint bucket 2.

[0016] The device includes 2 sets of diaphragm pumps 1, 2 sets of paint buckets 2, and 2 sets of feed pipes Ⅰ3, which can realize the function of supplying 2 different paints at the same time, and are all connected to the color changing device 4. When the color changing device 4 selects one of the paints, the other paint flows back to the paint bucket 2 through the paint feed pipe Ⅰ3 (return pipe).

[0017] The color changing device 4 can automatically select the type of paint to be used according to the actual spraying requirements by relying on the electronic control system 19, and the paint is extracted by the peristaltic pump 5 and stably supplied to the spray gun 8 through the paint supply pipeline II 6. The color changing device 4, the peristaltic pump 5, and the fixed bracket 18 are all connected by bolts.

[0018] The six-axis collaborative manipulator 9 is connected to the manipulator base 7 by bolts. The manipulator base 7 is fixed to the horizontal ground by adhesive anchor bolts and carries a spray gun 8. The spray gun 8 is fixed to the six-axis collaborative manipulator 9 by a specific bracket.

[0019] The mold positioning platform 12 is fixedly connected to the mold positioning platform base 10 by welding. The mold positioning platform base 10 is fixed to the horizontal ground by adhesive anchor bolts. Among them, the Z-axis rotation motor 11 is controlled by the Z-axis rotation handle 15 to realize the 360° rotation function of the mold positioning platform in the Z-axis direction. When the X-axis manual crank 13 is manually rotated, the mold positioning platform 12 can be horizontally moved in the X-axis direction. When the Y-axis manual crank 14 is manually rotated, the mold positioning platform 12 can be horizontally moved in the Y-axis direction.

[0020] The mold temperature measuring device 16 and the laser red line transmitter 17 are connected to the fixed bracket 18 by bolt connection. Among them, the mold temperature measuring device 16 can measure the temperature of the low-pressure casting mold placed on the mold positioning platform 12 in real time, and feed back the temperature data to the electronic control system 19. The laser red line transmitter 17 can emit a laser cross-shaped positioning red line. When the mold positioning platform 12 returns to the origin, the center of the laser cross-shaped positioning red line coincides with the center of the mold positioning platform 12, and the laser cross-shaped positioning red line is parallel to the X-axis and Y-axis of the mold positioning platform 12 respectively.

[0021] For example, the laser red line transmitter 17 directly emits two laser lines to form a cross shape, and the position of the laser line remains constant. The cross shape is exactly in the center of the mold platform. The outermost contour of the hub mold is a square and symmetrical. Just move the mold positioning platform 12 horizontally along the X and Y axes to make the mold center coincide with the laser line center. Then rotate the Z axis to make the mold X and Y directions parallel to the laser cross. The entire mold can complete repeated positioning.

[0022] The electronic control system 19 can adjust spray parameters such as spray fan shape, atomization, flow rate, etc. in real time. It can record spray path parameters of different molds and switch according to actual spray requirements. It can collect mold temperature information collected by the mold temperature measuring device 16 in real time.

[0023] During operation, the sprayer first completes the paint mixing work in the paint bucket 2 according to the formula, and simultaneously starts the paint feeding setting in the electronic control system 19, so that two sets of different paint automatic feeding circuits can be formed.

[0024] Secondly, the spraying personnel hoist the wheel hub low-pressure casting mold to the mold positioning platform 12 and start the mold positioning setting in the electronic control system 19. At this time, the laser red line transmitter 17 emits a positioning laser red line and forms a laser cross-shaped positioning red line on the mold positioning platform 12. The center of the laser cross-shaped positioning red line coincides with the center of the mold positioning platform 12.

[0025] Among them, the spraying personnel can adjust the X-axis manual handle 13 and the Y-axis manual handle 14 of the mold positioning platform 12 to make the mold center coincide with the center point of the laser cross-shaped positioning red line, and then adjust the Z-axis rotation of the mold through the Z-axis rotation handle 15 to make the mold center line completely coincide with the laser cross red line, thereby completing the mold positioning.

[0026] During the mold positioning process, the mold temperature measuring device 16 always monitors the mold temperature.

[0027] Furthermore, the spraying personnel starts the spraying teaching mode in the electronic control system 19, manually grabs the six-axis collaborative robot spray gun, performs the first spraying on different mold modeling surfaces, completes the robot spraying path memory work, and after the first spraying is completed, the corresponding program is used to name the corresponding mold in the electronic control system 19. When the mold is sprayed repeatedly in the future, the automatic spraying work can be completed by directly calling the corresponding spraying path program.

[0028] During the repeated spraying of the mold, the mold temperature measuring device 16 always monitors the mold temperature. When the actual mold spraying temperature is lower than the set temperature, the electronic control system 19 will send out a temperature sound and light alarm, and the spraying work will be automatically stopped. The spraying personnel will then lift away the mold with unqualified spraying temperature, and reheat it before spraying again.

[0029] Finally, when the mold has completed the overall spraying work, the six-axis collaborative robot returns to the spatial origin. At this time, the spraying personnel will lift the finished wheel hub low-pressure casting mold out of the automatic spraying equipment, completing the automatic spraying work of the entire mold.

[0030] In the description of the present application, "multiple" means two or more than three, unless otherwise clearly and specifically defined. Unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Although the present invention has been described with reference to various specific embodiments, it should be understood that variations can be made within the spirit and scope of the concept of the described utility model. Therefore, it is intended that the present invention is not limited to the described embodiments, but will have the full scope defined by the language of the appended claims.

Claims

1. An automatic spraying equipment for low-pressure casting mold of wheel hub, characterized in that: include: A diaphragm pump (1), a paint bucket (2), a paint supply pipeline I (3), a color changing device (4), a peristaltic pump (5), a paint supply pipeline II (6), a spray gun (8), a manipulator (9) for fixing the spray gun (8), a mold positioning platform (12), a mold temperature measuring device (16), a laser red line transmitter (17), and an electronic control system (19), wherein the diaphragm pump (1) is connected to the paint supply pipeline I (3) and extracts paint from the paint bucket (2), and the extracted paint can flow back into the paint bucket (2) through the color changing device (4) to form a supply. The color changing device (4) can automatically select the type of paint to be used by the electronic control system (19), and the paint is extracted by the peristaltic pump (5) and supplied to the spray gun (8) through the paint supply pipeline II (6). The mold temperature measuring device (16) is used to measure the temperature of the low-pressure casting mold placed on the mold positioning platform (12) in real time, and feed the temperature data back to the electronic control system (19). The laser red line transmitter (17) is used to emit a positioning red line. When the mold positioning platform (12) returns to the origin, the center of the positioning red line coincides with the center of the mold positioning platform (12).

2. The automatic spraying equipment for low-pressure casting mold of wheel hub according to claim 1 is characterized in that: Also includes: A mold positioning platform base (10), a Z-axis rotating motor (11), an X-axis manual crank (13), a Y-axis manual crank (14), and a Z-axis rotating handle (15), wherein the mold positioning platform (12) is fixedly connected to the mold positioning platform base (10), the Z-axis rotating motor (11) is controlled by the Z-axis rotating handle (15) to realize the Z-axis rotation function of the mold positioning platform (12), the X-axis manual crank (13) is used to realize the X-axis lateral movement function of the mold positioning platform (12), and the Y-axis manual crank (14) is used to realize the Y-axis lateral movement function of the mold positioning platform (12).

3. The automatic spraying equipment for low-pressure casting mold of wheel hub according to claim 1, characterized in that: Also includes: Two sets of diaphragm pumps (1) and two sets of paint barrels (2) are connected to two sets of feed pipes I (3) of a color changing device (4). When the color changing device (4) selects a paint corresponding to one of the two sets, the other paint flows back into the paint barrel (2) via the paint feed pipe I (3).

4. The automatic spraying equipment for low-pressure casting mold of wheel hub according to claim 1, characterized in that: Also includes: A fixing bracket (18) for fixing the diaphragm pump (1), the color changing device (4), the peristaltic pump (5), the mold temperature measuring device (16) and the laser red line transmitter (17).

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