Automatic line spraying equipment for balls

Abstract

The utility model discloses an automatic ball line spraying device which comprises a paint spraying device used for spraying paint and a clamping turnover device, the clamping turnover device comprises a rotatable clamp unit and a first rotation driving mechanism used for driving the clamp unit to rotate, and a spherical clamping inner cavity used for clamping a ball is formed in the clamp unit. The clamp unit is provided with a wire groove for the paint spraying device to spray paint to the surface of an internal sphere, the paint spraying device comprises a multi-axis rotating mechanical arm and an automatic paint spraying piece which is arranged on the mechanical arm and provided with a spraying head, and the clamp unit rotates to enable the internal sphere to rotate to the upper surface upwards or the lower surface upwards. The mechanical arm controls the automatic paint spraying part to spray paint on the upward sphere surface along the line groove, the mechanical arm controls the spray head of the automatic paint spraying part to spray paint on the sphere surface along the line groove, spraying is more accurate and uniform, the spray head for paint spraying can be made to be very small, the effect of saving more paint is achieved, and compared with manual paint spraying, the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to a painting device, in particular to an automatic sphere painting line device. Background Art

[0002] There are various types of ball products, such as volleyballs, footballs, basketballs, etc. Some of the ball products have lines on their surfaces, such as basketballs. After the sphere is formed, the required lines need to be sprayed on its surface.

[0003] The existing sphere line spraying devices on the market generally only have the function of clamping and positioning the sphere, including tooling jigs. The tooling jig is formed by the combination of an upper jig and a lower jig. The upper jig and the lower jig are provided with wire grooves. When spraying the line, the sphere is loaded into the upper jig and the lower jig, and the worker manually holds the spray gun and sprays paint along the wire grooves on the upper jig and the lower jig, so that the required lines are formed on the surface of the sphere loaded in the upper jig and the lower jig.

[0004] The efficiency of manual painting is low, and the painting path cannot always be kept facing the wire groove. Therefore, in order to ensure that the paint can be sprayed along the wire groove, the nozzle of the spray gun needs to be made larger, so that the spray gun has a larger spray port to increase the painting area. However, this method also wastes a lot of paint and increases the raw material cost. Summary of the Utility Model

[0005] Based on the problems of low efficiency of manual painting, the painting path cannot always be kept facing the wire groove, and the nozzle needs to be enlarged, which wastes a lot of paint, the utility model provides an automatic sphere painting line device.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: an automatic sphere painting line device, including a painting device for painting and a clamping and flipping device. The clamping and flipping device includes a rotatable fixture unit and a first rotation driving mechanism for driving the fixture unit to rotate. The fixture unit has a spherical clamping inner cavity for clamping the sphere inside. The fixture unit is provided with a wire groove for the painting device to spray paint onto the surface of the inner sphere. The painting device includes a robotic arm that rotates in multiple axes and an automatic painting part with a nozzle arranged on the robotic arm. The fixture unit rotates to make the inner sphere face upwards or downwards, and the robotic arm controls the automatic painting part to spray paint along the wire groove on the upward-facing surface of the sphere.

[0007] A further preferred technical solution of the utility model is: the device further includes a position conversion device. The position conversion device includes a turntable and a second rotation driving mechanism for driving the turntable to rotate. A number of clamping and flipping devices are installed on the turntable. The turntable rotates to rotate the clamping and flipping devices one by one to the painting station, and the painting device sprays paint on the surface of the sphere clamped at the painting station.

[0008] A further preferred technical solution of the present utility model is as follows: The fixture unit includes an upper fixture and a lower fixture, which are connected in an openable and closable manner. After the upper fixture and the lower fixture are connected, a spherical clamping inner cavity is formed inside. Wire grooves are provided on the upper fixture and the lower fixture.

[0009] A further preferred technical solution of the present utility model is as follows: One side of the upper fixture and the lower fixture is hinged, and the other side of the upper fixture and the lower fixture is detachably connected, so that the upper fixture can be turned upwards relative to the lower fixture to be opened.

[0010] A further preferred technical solution of the present utility model is as follows: Opposite through grooves are provided on the upper fixture and the lower fixture, and the through grooves are connected to the ends of the wire grooves to expose the joint of the wire groove on the upper fixture and the wire groove on the lower fixture.

[0011] A further preferred technical solution of the present utility model is as follows: The turntable is rotatably installed on the fixed shaft. A number of signal transmitters corresponding to the clamping and flipping devices one by one are provided on the turntable. A triggering mechanism is provided on the fixed shaft. The signal transmitters are electrically connected to the controller. When the clamping and flipping device rotates to the painting station, the corresponding signal transmitter rotates to a position opposite to the triggering mechanism, and the triggering mechanism can trigger the opposite signal transmitter, so that the controller controls the first rotation driving mechanism located at the painting station to drive the fixture unit to flip.

[0012] A further preferred technical solution of the present utility model is as follows: The signal transmitter is an electrical signal switch. The triggering mechanism includes a control cylinder. A touch pressure plate is connected to the piston rod of the control cylinder. The touch pressure plate moves up and down to touch the opposite electrical signal switch, so that the electrical signal switch emits a signal to the controller.

[0013] A further preferred technical solution of the present utility model is as follows: The robotic arm includes a first arm, a second arm, a third arm and a fourth arm. The first arm rotates around the Z axis. One end of the second arm is rotatably connected to the first arm. One end of the third arm is rotatably connected to the other end of the second arm. One end of the fourth arm is rotatably connected to the other end of the third arm. The rotation center lines of the second arm, the third arm and the fourth arm are parallel. A rotating seat is provided at the other end of the fourth arm. The rotating seat can rotate relative to the fourth arm. The rotation center line of the rotating seat is perpendicular to the rotation center line of the fourth arm. A bracket is fixed at a position deviating from the rotation center of the rotating seat. The automatic painting part is installed on the bracket.

[0014] A further preferred technical solution of the present utility model is as follows: The first rotation driving mechanism includes a rotating cylinder.

[0015] A further preferred technical solution of the present utility model is as follows: The rotation center line of the fixture unit is perpendicular to the rotation center line of the turntable.

[0016] Compared with the prior art, the advantages of the present utility model are that the clamping unit has a spherical clamping inner cavity for clamping the sphere, a wire groove is provided on the clamping unit for the painting device to spray paint onto the surface of the inner sphere, the clamping unit can rotate to make the inner sphere turn with its upper surface facing up or its lower surface facing up. During painting, the robotic arm controls the nozzle of the automatic painting part to spray paint on the upward-facing surface of the sphere along the wire groove. After the upper half surface of the sphere is painted, the clamping unit rotates to turn the unpainted lower half surface of the sphere upward, and the robotic arm controls the nozzle of the automatic painting part to spray paint on the upward-facing lower half surface of the sphere along the wire groove, so as to form complete lines on the entire surface of the sphere. By controlling the nozzle of the automatic painting part to spray paint on the surface of the sphere along the wire groove, the spraying is more accurate and uniform, enabling the painting nozzle to be made very small, achieving the effect of saving more paint, and having a higher efficiency compared to manual painting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 Schematic diagram of the overall structure of the present utility model Figure 1 ;

[0019] Figure 2 Schematic diagram of the overall structure of the present utility model Figure 2 ;

[0020] Figure 3 Schematic diagram of the structure of the clamping and flipping device and the position conversion device;

[0021] Figure 4 For Figure 1 Partial enlarged view of part A of

[0022] Figure 5 For Figure 3 Partial enlarged view of part B of

[0023] In the figures: 1, robotic arm; 2, automatic painting part; 3, processing table; 4, clamping and flipping device; 5, position conversion device; 6, base; 7, first arm; 8, second arm; 9, third arm; 10, rotating seat; 11, bracket; 12, second rotation driving mechanism; 13, turntable; 14, clamping unit; 15, rotating cylinder; 16, signal transmitter; 17, lower clamp; 18, wire groove; 19, through groove; 20, triggering mechanism; 21, fixed shaft; 22, control cylinder; 23, touch plate; 24, upper clamp; 25, fourth arm. Detailed implementation manners

[0024] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present utility model.

[0025] It should be noted that: Similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0026] Figures 1 - 5 As shown, a sphere automatic spraying line device is used for spraying paint on the surface of a sphere to form required lines on the surface of the sphere, including a spraying device and a clamping and flipping device 4, and the clamping and flipping device 4 is used for clamping the sphere to be sprayed with lines.

[0027] Figure 3 As shown, the clamping and flipping device 4 includes a rotatable fixture unit 14 and a first rotation driving mechanism for driving the fixture unit 14 to rotate. The fixture unit 14 has a spherical clamping inner cavity for clamping the sphere inside. A wire groove 18 is provided on the fixture unit 14 for the spraying device to spray paint onto the surface of the inner sphere. By rotating the fixture unit 14, the inner sphere can be rotated so that its upper surface faces upward or its lower surface faces upward.

[0028] Preferably, the fixture unit 14 rotates intermittently, and the first rotation driving mechanism drives the fixture unit 14 to rotate 180° each time. When the first rotation driving mechanism drives the fixture unit 14 to rotate, the sphere clamped inside the fixture unit 14 can rotate from the upper surface above to the lower surface below, and the lower surface located below can rotate to the upper surface, so that the spraying device can spray paint on the entire surface of the sphere.

[0029] Preferably, the first rotation driving mechanism is a rotary cylinder 15. The fixture unit 14 is connected to the rotating part of the rotary cylinder 15 and is driven to rotate by the rotating part. The fixture unit 14 rotates around a horizontal axis. The rotary cylinder 15 is a conventional existing structure, such as a rotary cylinder with the brand XINYANG / New Yang Pneumatic and the model QGKA. The first rotation driving mechanism is not limited to the rotary cylinder 15, and other conventional driving mechanisms that can drive rotation are applicable to this patent, such as servo motors, reduction motors, etc.

[0030] Figure 3 As shown, preferably, the fixture unit 14 includes an upper fixture 24 and a lower fixture 17. The upper fixture 24 and the lower fixture 17 are connected in an openable and closable manner. After the upper fixture 24 and the lower fixture 17 are connected, a spherical clamping inner cavity is formed inside. The sphere is clamped inside the clamping inner cavity and fixed to the fixture unit 14. Wire grooves 18 are provided on the upper fixture 24 and the lower fixture 17.

[0031] Preferably, one side of the upper fixture 24 and the lower fixture 17 is hinged, and the other side of the upper fixture 24 and the lower fixture 17 is detachably connected, so that the upper fixture 24 can be turned upward relative to the lower fixture 17 to be opened, the sphere is placed in the lower fixture 17, and then the upper fixture 24 is covered on the lower fixture 17 and connected to the lower fixture 17.

[0032] The detachable connection manner between the upper fixture 24 and the lower fixture 17 is a conventional connection manner, such as snap connection, or connection by bolts, or pin connection, etc. The snap connection can refer to patents CN2764148Y and CN210889008U.

[0033] The lower fixture 17 is fixedly connected to the above-mentioned first rotation driving mechanism, and the upper fixture 24 is hinged to the lower fixture 17.

[0034] Figure 5 As shown, preferably, opposite through grooves 19 are provided on the upper fixture 24 and the lower fixture 17. The through grooves 19 are arranged at the respective ends of the wire grooves 18 and communicate with the ends of the wire grooves 18. The opposite through grooves 19 expose the joint of the wire groove 18 on the upper fixture 24 and the wire groove 18 on the lower fixture 17, so that when the spraying device sprays paint along the wire groove 18, the wires sprayed on the upper surface of the sphere and the wires sprayed on the lower surface can be connected.

[0035] Figure 2 As shown, the spraying device includes a robotic arm 1 that rotates in multiple axes, and an automatic spraying member 2 provided on the robotic arm 1 and having a spray head. The robotic arm 1 controls the automatic spraying member 2 to spray paint on the upward-facing surface of the sphere along the wire groove 18.

[0036] Preferably, the automatic spraying member 2 is an automatic spray gun. The automatic spray gun is an existing conventional spraying device, such as a pneumatic paint spray gun of the brand Trifity, model WA-101.

[0037] The robotic arm 1 is the same as the existing robot arm. For example, in this embodiment, the robotic arm 1 includes a base 6, a first arm 7, a second arm 8, a third arm 9, and a fourth arm 25. One end of the first arm 7 is rotatably connected to the base 6, and the first arm 7 rotates around the Z-axis. One end of the second arm 8 is rotatably connected to the first arm 7. One end of the third arm 9 is rotatably connected to the other end of the second arm 8. One end of the fourth arm 25 is rotatably connected to the other end of the third arm 9. The rotation center lines of the second arm 8, the third arm 9, and the fourth arm 25 are parallel to each other. A rotating seat 10 is provided at the other end of the fourth arm 25. The rotating seat 10 can rotate relative to the fourth arm 25. The rotation center line of the rotating seat 10 is perpendicular to the rotation center line of the fourth arm 25. A bracket 11 is fixed at a position of the rotating seat 10 deviating from the rotation center. The automatic painting part 2 is installed on the bracket 11. The first arm 7, the second arm 8, the third arm 9, the fourth arm 25, and the rotating seat 10 are all parts of the robotic arm 1 and can rotate. The robotic arm 1 rotates in multiple axes to control the automatic painting part 2 to spray paint on the surface of the sphere along the groove 18.

[0038] During painting, the robotic arm 1 controls the nozzle of the automatic painting part 2 to spray paint on the upward-facing surface of the sphere along the groove 18. After spraying the upper half surface of the sphere, the fixture unit 14 rotates to turn the unsprayed lower half surface of the sphere upward. The robotic arm 1 controls the nozzle of the automatic painting part 2 to spray paint on the turned-up lower half surface of the sphere along the groove 18, so as to form a complete line on the entire surface of the sphere. By controlling the nozzle of the robotic arm 1 to spray paint on the surface of the sphere along the groove 18, the spraying is more accurate and uniform, enabling the paint spraying nozzle to be made smaller, achieving a more paint-saving effect, and having a higher efficiency compared to manual painting.

[0039] Figures 1 - 3 As shown, the above-mentioned device further includes a position conversion device 5. The position conversion device 5 includes a turntable 13 and a second rotation drive mechanism 12 for driving the turntable 13 to rotate. A number of clamping and flipping devices 4 are installed on the turntable 13. The turntable 13 rotates to successively rotate the number of clamping and flipping devices 4 to the painting station, and the painting device sprays paint on the surface of the sphere clamped at the painting station.

[0040] The above-mentioned first rotation drive mechanism is fixed on the turntable 13.

[0041] A number of clamping and flipping devices 4 are sequentially and evenly arranged at the edge of the turntable 13 along the rotation direction of the turntable 13. The turntable 13 rotates to successively send the clamping and flipping devices 4 to the painting station. The above-mentioned painting device is opposite to the painting station, and the painting device sprays paint on the surface of the sphere clamped in the fixture unit 14 at the painting station.

[0042] Preferably, four clamping and flipping devices 4 are installed on the turntable 13, and the included angle between two adjacent clamping and flipping devices 4 is 90°. The turntable 13 rotates intermittently, and the turntable 13 rotates 90° each time.

[0043] By arranging a plurality of clamping and flipping devices 4 on the turntable 13, when spraying paint on the spheres in a fixture unit 14, workers can simultaneously take out the spheres that have been sprayed with paint from the fixture unit 14, and clamp a new sphere to be sprayed into the fixture unit 14. The whole process does not require stopping the machine, making the overall processing efficiency higher.

[0044] Preferably, the rotation center line of the fixture unit 14 is perpendicular to the rotation center line of the turntable 13, and the turntable 13 rotates around the Z-axis direction.

[0045] Preferably, the position conversion device 5 is a cam divider, and the turntable 13 is the indexing plate of the cam divider; or the second rotation driving mechanism 12 is a cam divider, and the turntable 13 is fixedly installed on the indexing plate of the cam divider; or the second rotation driving mechanism 12 includes a servo motor, a transmission gear is installed on the turntable 13, a driving gear is connected to the output shaft of the servo motor, and the driving gear meshes with the transmission gear to drive the turntable 13 to rotate.

[0046] Figure 1 , Figure 4 As shown, preferably, the automatic spraying line equipment further includes a controller. The turntable 13 is rotatably installed on the fixed shaft 21, the fixed shaft 21 is fixedly installed on the processing table 3, a plurality of signal transmitters 16 corresponding to the clamping and flipping devices 4 one by one are arranged on the turntable 13, a triggering mechanism 20 is arranged on the fixed shaft 21, the signal transmitters 16 are electrically connected to the controller. When the clamping and flipping device 4 rotates to the painting station, the corresponding signal transmitter 16 rotates to a position opposite to the triggering mechanism 20, and the triggering mechanism 20 can trigger the opposite signal transmitter 16, so that the controller controls the first rotation driving mechanism at the painting station to drive the fixture unit 14 to flip 180°, so that the spheres clamped in the fixture unit 14 are turned over. Four signal transmitters 16 are arranged on the turntable 13, and the four signal transmitters 16 are arranged in one-to-one correspondence with the four clamping and flipping devices 4.

[0047] Preferably, the signal transmitter 16 is an electrical signal switch, and the triggering mechanism 20 includes a control cylinder 22 fixed on the fixed shaft 21. A pressure contact plate 23 is connected to the piston rod of the control cylinder 22. The pressure contact plate 23 can move up and down. The pressure contact plate 23 presses down on the opposite electrical signal switch, so that the electrical signal switch emits a signal to the controller. The electrical signal switch is a conventional switch structure, such as a micro switch or a push button switch.

[0048] The signal transmitter 16 is used to assist the controller in identifying the clamping and flipping device 4 at the painting station, so as to facilitate the controller to accurately control the clamping and flipping device 4 to turn over.

[0049] The above spray painting device, the first rotary drive mechanism, the second rotary drive mechanism 12 and the control cylinder 22 are all electrically connected to the controller.

[0050] Working principle: The turntable 13 rotates 90° to send the clamping and flipping device 4 with the sphere clamped to the spray painting station. The electric signal switch corresponding to the clamping and flipping device 4 rotates to the lower side of the pressure plate 23. The robotic arm 1 controls the automatic spray painting part 2 to spray the upper surface of the sphere along the wire groove 18 on the upper fixture 24. After the robotic arm 1 controls the automatic spray painting part 2 to complete the spraying action on the upper surface of the sphere, the robotic arm 1 sends a signal to the controller. The controller controls the control cylinder 22 to drive the pressure plate 23 to press down, so that the pressure plate 23 presses on the electric signal switch. The electric signal switch feeds back a signal to the controller. The controller controls the first rotary drive mechanism at the spray painting station to drive the fixture unit 14 to flip 180°, so that the upper surface of the sphere that has been spray painted turns to the lower side, and the unpainted lower surface turns to the upper side. The robotic arm 1 controls the automatic spray painting part 2 to spray the lower surface of the sphere along the wire groove 18 on the lower fixture 17. After the robotic arm 1 controls the automatic spray painting part 2 to complete the spraying action on the lower surface of the sphere, the robotic arm 1 sends a signal to the controller. The controller controls the control cylinder 22 to drive the pressure plate 23 to move up, so that the electric signal switch feeds back a signal to the controller. The controller controls the first rotary drive mechanism at the spray painting station to drive the fixture unit 14 to flip 180°, so that the upper fixture 24 turns back to the upper side, and the lower fixture 17 turns to the lower side. At the same time, the turntable 13 rotates 90° to turn out the clamping and flipping device 4 at the spray painting station, and turns another adjacent clamping and flipping device 4 to the spray painting station for the spray painting device to spray the clamped sphere. The above steps are continuously repeated.

[0051] The upper fixture 24 rotates to the upper side, which is convenient for opening the upper fixture 24 to take out the sphere.

[0052] The above introduces the automatic spray line equipment for spheres provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the present utility model and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. Ball automatic spraying equipment, characterized in that: The invention comprises a paint spraying device and a clamping and flipping device for spraying paint, wherein the clamping and flipping device comprises a rotatable clamping unit and a first rotating driving mechanism for driving the clamping unit to rotate, wherein the clamping unit has a spherical clamping inner cavity for clamping a sphere, and the clamping unit is provided with a line groove for the paint spraying device to spray paint onto the surface of the internal sphere, and the paint spraying device comprises a multi-axis rotating mechanical arm and an automatic paint spraying part with a spray head arranged on the mechanical arm, wherein the clamping unit rotates to turn the internal sphere to face the upper surface upward or the lower surface upward, and the mechanical arm controls the automatic paint spraying part to spray paint on the upward sphere surface along the line groove.

2. The ball automatic spraying equipment according to claim 1, characterized in that: The equipment also includes a position conversion device, which includes a turntable and a second rotating drive mechanism that drives the turntable to rotate. A plurality of clamping and flipping devices are installed on the turntable. The turntable rotates to rotate the plurality of clamping and flipping devices one by one to the painting station. The painting device sprays paint on the surface of the sphere clamped at the painting station.

3. The ball automatic spraying equipment according to claim 1, characterized in that: The clamp unit comprises an upper clamp and a lower clamp, the upper clamp and the lower clamp are connected in an openable and closable manner, a spherical clamping inner cavity is formed inside the upper clamp and the lower clamp are provided with wire grooves.

4. The ball automatic spraying equipment according to claim 3, characterized in that: One side of the upper clamp is hinged to the lower clamp, and the other side of the upper clamp is detachably connected to the lower clamp, so that the upper clamp can be flipped upwards and opened relative to the lower clamp.

5. The ball automatic spraying equipment according to claim 3, characterized in that: The upper clamp and the lower clamp are provided with opposite through grooves, which are connected to the ends of the wire grooves to expose the joints of the wire grooves on the upper clamp and the wire grooves on the lower clamp.

6. The ball automatic spraying equipment according to claim 2, characterized in that: The turntable is rotatably mounted on a fixed shaft, and a plurality of signal transmitters corresponding to the clamping and flipping devices are arranged on the turntable. A trigger mechanism is arranged on the fixed shaft, and the signal transmitter is electrically connected to the controller. When the clamping and flipping device is rotated to the painting station, the signal transmitter corresponding to it is rotated to a position opposite to the trigger mechanism. The trigger mechanism can trigger the relative signal transmitter, so that the controller controls the first rotating drive mechanism located at the painting station to drive the clamp unit to flip.

7. The ball automatic spraying equipment according to claim 6, characterized in that: The signal transmitter is an electric signal switch, and the trigger mechanism includes a control cylinder. A pressure plate is connected to the piston rod of the control cylinder. The pressure plate moves up and down to contact and press the relative electric signal switch, so that the electric signal switch transmits a signal to the controller.

8. The ball automatic spraying equipment according to claim 1, characterized in that: The robotic arm comprises a first arm, a second arm, a third arm and a fourth arm, the first arm rotates around the Z axis, one end of the second arm is rotationally connected to the first arm, one end of the third arm is rotationally connected to the other end of the second arm, one end of the fourth arm is rotationally connected to the other end of the third arm, the rotation center lines of the second arm, the third arm and the fourth arm are parallel, a rotating seat is arranged on the other end of the fourth arm, the rotating seat can rotate relative to the fourth arm, the rotation center line of the rotating seat is perpendicular to the rotation center line of the fourth arm, a bracket is fixed to the position of the rotating seat deviating from the rotation center, and the automatic spray painting part is mounted on the bracket.

9. The ball automatic spraying equipment according to claim 1, characterized in that: The first rotary drive mechanism includes a rotary cylinder.

10. The ball automatic spraying equipment according to claim 2, characterized in that: The rotation centerline of the fixture unit is perpendicular to the rotation centerline of the turntable.

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