An automatic pipe fitting rust removal, paint spraying and baking device and method

Abstract

The present invention discloses an automatic pipe fitting rust removal, paint spraying and baking device and method, comprising a conveying mechanism, a clamping mechanism, a rust removal mechanism, a paint spraying mechanism and a paint baking mechanism; the conveying mechanism comprises a track, a chassis and a conveying drive mechanism; the conveying drive mechanism is used to drive the chassis to move along the track; the clamping mechanism is arranged on the chassis, and the clamping mechanism is used to clamp the pipe fitting; the rust removal mechanism comprises a wire wheel and a rust removal drive mechanism for driving the wire wheel to rotate and move; the paint spraying mechanism comprises a spraying robot arranged on at least one side of the track; and the paint baking mechanism comprises a heating plate arranged on both sides of the track. The beneficial effect of the automatic pipe fitting rust removal, paint spraying and baking device of the present invention is that the pipe fitting is well fixed on the conveying mechanism by the clamping mechanism, and the pipe fitting is automatically conveyed to the corresponding positions of the rust removal mechanism, the paint spraying mechanism and the paint baking mechanism by the conveying mechanism to perform rust removal, paint spraying and paint baking operations on the pipe fitting, and the whole process does not require direct human participation.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting spray painting and rust removal, and in particular to an automatic pipe fitting rust removal spray painting and baking device and method. Background Art

[0002] At present, straight pipe fittings or curved pipe fittings are often required to be installed at construction sites. Before installing straight pipe fittings or curved pipe fittings, the outer surface of the straight pipe fittings or curved pipe fittings needs to be sprayed with paint. If the straight pipe fittings or curved pipe fittings are sprayed with paint in advance and then transported to the construction site, the following problems will occur: 1. The surface coating layer of the pre-painted pipe fittings is easy to fall off or peel due to the long-term storage and the influence of the external environment; 2. During transportation, the pipe fittings will be hit and the coating layer will also fall off. In order to solve the above problems, some construction sites adopt the on-site painting treatment method, that is, the workers spray paint the pipe fittings at the construction site and dry them before installing them. This treatment method not only causes certain harm to the health of the workers, but also has relatively low painting efficiency and unstable painting quality. In addition, due to the simple facilities of manual painting, the sprayed paint waste gas often evaporates into the air and causes air pollution. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that existing pipe fittings lack an integrated device for automatic rust removal, painting and baking, and to provide an automatic pipe fitting rust removal, painting and baking device, including a conveying mechanism, a clamping mechanism, a rust removal mechanism, a painting mechanism and a painting mechanism;

[0004] The conveying mechanism comprises a track, a chassis and a conveying drive mechanism; the rust removal mechanism, the paint spraying mechanism and the paint baking mechanism are sequentially arranged along the length direction of the track; the chassis is arranged on the track; the conveying drive mechanism is used to drive the chassis to move along the track;

[0005] The clamping mechanism is arranged on the base frame, and the clamping mechanism is used to clamp the pipe fitting;

[0006] The rust removal mechanism comprises a wire wheel and a rust removal driving mechanism for driving the wire wheel to rotate and move;

[0007] The painting mechanism comprises a painting robot disposed on at least one side of the track;

[0008] The paint baking mechanism comprises heating plates arranged on both sides of the track.

[0009] Furthermore, the clamping mechanism includes two horizontal tube clamping devices relatively arranged on the base frame; the horizontal tube clamping device includes a slide, a support plate, a chuck, a rotating shaft and a horizontal clamping drive; the slide is slidably matched with the base frame; the support plate is arranged at the upper end of the slide, and a plurality of rotating shafts are arranged on the support plate, and the horizontal clamping drive drives the rotating shaft to rotate; the chuck includes a rotary expansion mechanism and a splint arranged at the side end of the rotary expansion mechanism; the rotary expansion mechanism is connected to the rotating shaft to drive the splint to expand so as to tighten or loosen the inner wall of the pipe fitting.

[0010] Furthermore, the rotary expansion mechanism includes a threaded rod, a threaded sleeve, a fixed sleeve and a hinged rod; the threaded rod is connected to the rotating shaft, and a fixed sleeve is fixed on the threaded rod and a threaded sleeve is matched with the thread; the hinged rod is arranged circumferentially along the threaded rod, and the hinged rod includes a fixed rod and a movable rod hinged to each other; one end of the fixed rod is hinged to the fixed sleeve, and the other end of the fixed rod is hinged to the splint; one end of the movable rod is hinged to the threaded sleeve, and the other end of the movable rod is slidably connected to the splint.

[0011] Furthermore, the horizontal pipe clamping device further comprises a flange plate arranged on the rotating shaft; the flange plate is arranged at one end of the rotating shaft facing away from the horizontal clamping driving member and is used for connecting with a pipe flange. The flange plate can clamp and fix small-diameter pipes.

[0012] Furthermore, the clamping mechanism includes a vertical pipe clamping device arranged on the base frame; the vertical pipe clamping device includes a base plate, a lifting push rod, a wedge-shaped connecting plate, a push plate, a slider and a slide rail; the base plate is slidably matched with the base frame; the lifting push rod is arranged at the upper end of the base plate; multiple wedge-shaped connecting plates are arranged along the circumferential end of the lifting push rod; the end of the wedge-shaped connecting plate facing away from the lifting push rod is matched with a push plate through a wedge-shaped surface, and the wedge-shaped connecting plate is connected to the push plate through a spring; a slider is provided at the lower end of the push plate; the lower end of the slider is matched with a slide rail arranged at the upper end of the base plate and radially along the lifting push rod.

[0013] Furthermore, the clamping mechanism includes a bent pipe clamping device, which includes two horizontal pipe clamping devices and at least one vertical pipe clamping device disposed between the two horizontal pipe clamping devices. The bent pipe can be clamped and fixed by the cooperation of the horizontal pipe clamping device and the vertical pipe clamping device.

[0014] Furthermore, the rust removal drive mechanism includes a rust removal bracket and a lifting drive mechanism, a horizontal drive mechanism and a rotation drive mechanism arranged on the rust removal bracket; the rust removal bracket is arranged at the side end of the track; the rotation drive mechanism is connected to the wire wheel for driving the wire wheel to rotate; the horizontal drive mechanism is connected to the rotation drive mechanism for driving the rotation drive mechanism to move horizontally along the radial direction of the wire wheel; the lifting drive mechanism is connected to the horizontal drive mechanism for driving the horizontal drive mechanism to lift and lower.

[0015] Furthermore, the paint baking mechanism further comprises a soaking plate; the soaking plate is evenly provided with a plurality of through holes; the soaking plate is arranged between the heating plate and the track. By arranging the soaking plate outside the heating plate, the pipe is heated evenly, thereby improving the baking quality.

[0016] The beneficial effects of the automatic pipe rust removal, paint spraying and baking device of the present invention are: the pipe is well fixed on the conveying mechanism through the clamping mechanism, and the pipe is automatically conveyed to the corresponding positions of the rust removal mechanism, the paint spraying mechanism and the paint baking mechanism through the conveying mechanism to perform rust removal, paint spraying and paint baking operations on the pipe, and the whole process does not require direct human participation, which protects the health of personnel, has a high degree of automation, and has high quality of rust removal, paint spraying and paint baking. In addition, the device is easy to move and install, and can adapt to construction environments with large differences.

[0017] The present invention also provides a method for automatically removing rust from pipe fittings, spraying paint and baking, comprising the following steps:

[0018] Step 1: hoist the pipe to be derusted onto the clamping mechanism using a hoisting device, and clamp the pipe to be derusted onto the conveying mechanism using the clamping mechanism;

[0019] Step 2: The pipe to be derusted fixed in step 1 is transported to the rust removal mechanism by the conveying mechanism, and the wire wheel of the rust removal mechanism rotates and rubs along the outer wall of the pipe to be derusted to remove rust. After the outer wall of the pipe to be derusted is derusted, it becomes a pipe to be painted. At the same time, the conveying mechanism drives the pipe to be painted to move toward the paint spraying mechanism;

[0020] Step 3: The paint spraying mechanism sprays paint on the outer wall of the pipe to be painted, and after the outer wall of the pipe to be painted is completed, the pipe to be painted is formed, and at the same time, the conveying mechanism drives the pipe to be painted to move toward the paint spraying mechanism;

[0021] Step 4: the paint baking mechanism bakes the outer wall of the pipe to be painted to form a finished pipe, and the conveying mechanism drives the finished pipe to move toward the lifting device; the lifting device removes the finished pipe from the clamping mechanism.

[0022] Furthermore, the pipe to be derusted is a straight pipe or a bent pipe; and the baking, painting and derusting of the same straight pipe are carried out simultaneously.

[0023] The beneficial effects of the present invention are as follows: by conveying the same pipe fitting through the same conveying mechanism, the pipe fitting can be simultaneously subjected to baking, painting and rust removal treatments, which greatly shortens the processing cycle of a single pipe fitting, shortens the interval time between adjacent treatment processes, and improves the quality of painting and baking; and the completed pipe fitting can be directly hoisted to the construction site by hoisting equipment, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic pipe rust removal, paint spraying and baking device of the present invention.

[0025] Figure 2 for Figure 1 Schematic diagram of the enlarged three-dimensional structure of the conveying mechanism.

[0026] Figure 3 for Figure 2 An enlarged three-dimensional structural schematic diagram of the mid-horizontal pipe clamping device.

[0027] Figure 4 for Figure 2 An enlarged three-dimensional structural schematic diagram of a central vertical pipe clamp fixing a bent pipe member.

[0028] Figure 5 for Figure 4 An enlarged three-dimensional structural schematic diagram of a vertical pipe clamping device.

[0029] Figure 6 for Figure 1 An enlarged three-dimensional structural schematic diagram of the rust removal mechanism and the pipe to be rusted.

[0030] Figure 7 for Figure 6 Schematic diagram of the enlarged three-dimensional structure of the rust removal mechanism.

[0031] Figure 8 for Figure 7 An enlarged three-dimensional structural schematic diagram of the horizontal driving mechanism of the rust removal mechanism.

[0032] Fig. 9 for Figure 1 An enlarged three-dimensional structural diagram of the paint baking mechanism.

[0033] In the figure:

[0034] 1- conveying mechanism; 1.1- track; 1.2- chassis; 1.3- conveying drive mechanism;

[0035] 2- Clamping mechanism;

[0036] 2.1- horizontal pipe clamping device; 2.1.1- sliding frame; 2.1.2- supporting plate; 2.1.3- clamp; 2.1.3.1- clamping plate; 2.1.3.2- threaded rod; 2.1.3.3- threaded sleeve; 2.1.3.4- fixed sleeve; 2.1.3.5- hinged rod;

[0037] 2.1.4-rotating shaft; 2.1.5-horizontal clamping drive member;

[0038] 2.2-vertical pipe clamping device; 2.2.1-bottom plate; 2.2.2-lifting push rod; 2.2.3-wedge-shaped connecting plate; 2.2.4-push plate; 2.2.5-slider; 2.2.6 slide rail; 2.2.7-spring;

[0039] 3-Rust removal mechanism; 3.1-Wire wheel;

[0040] 3.2-lifting drive mechanism; 3.2.1-lifting motor; 3.2.2-transmission chain; 3.2.3-lifting plate;

[0041] 3.3-Horizontal drive mechanism; 3.3.1-Electric push rod; 3.3.2-Slide table; 3.3.3-Fixed frame;

[0042] 3.4-Rotation drive mechanism; 3.4.1-Rotation motor; 3.4.2-Belt; 3.4.3-Transmission shaft; 3.4.4-Steel wheel shaft;

[0043] 3.5-Rust removal bracket;

[0044] 4-Painting mechanism;

[0045] 5-painting mechanism; 5.1-heating plate; 5.2-heating plate;

[0046] 6-Box;

[0047] 7-Lifting equipment;

[0048] 8-straight pipe fittings;

[0049] 9-Bend pipe fittings. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0051] like Figures 1 to 9 The automatic pipe rust removal, paint spraying and baking device shown comprises a conveying mechanism 1, a clamping mechanism 2, a rust removal mechanism 3, a paint spraying mechanism 4 and a paint baking mechanism 5. In order to prevent dust from polluting the air during rust removal and painting, the device of this embodiment comprises a box 6, wherein the clamping mechanism 2, the rust removal mechanism 3, the paint spraying mechanism 4 and the paint baking mechanism 5 are all arranged in the box 6.

[0052] See 1. Figure 2 The conveying mechanism 1 includes a track 1.1, a chassis 1.2 and a conveying drive mechanism 1.3; a rust removal mechanism 3, a paint spraying mechanism 4 and a paint baking mechanism 5 are sequentially arranged along the length direction of the track 1.1; the chassis 1.2 is arranged on the track 1.1; the conveying drive mechanism 1.3 is used to drive the chassis 1.2 to move along the track 1.1; the track 1.1 is laid on the ground and passes through the lower end of the box 6, and the conveying drive mechanism 1.3 is arranged on the chassis 1.2. Under the action of the conveying drive mechanism 1.3, the chassis 1.2 can move along the length direction of the track 1.1, and at least a part of the track 1.1 is located outside the box 6. A lifting device 7 for lifting pipe fittings is provided on one side of the track 1.1 of this part. The operator uses the lifting device 7 to lift the pipe fittings on the ground to the clamping mechanism 2 on the conveying mechanism 1.

[0053] The clamping mechanism 2 is arranged on the base frame 1.2, and is used for clamping the pipe fittings. Since the base frame 1.2 is movable on the guide rail, the clamping mechanism 2 can be located outside the box body 6, which is convenient for fixing the hoisted pipe fittings.

[0054] Specifically, the clamping mechanism 2 in this embodiment includes two horizontal pipe clamping devices 2.1 arranged on the base frame 1.2 and a vertical pipe clamping device 2.2 arranged on the base frame 1.2. Of course, the clamping mechanism 2 also includes a bent pipe clamping device for clamping and fixing the bent pipe member 9.

[0055] See also Figure 2 , Figure 3 The horizontal pipe clamping device 2.1 includes a slide 2.1.1, a support plate 2.1.2, a chuck 2.1.3, a rotating shaft 2.1.4 and a horizontal clamping drive 2.1.5; the slide 2.1.1 is slidably matched with the base frame 1.2; the support plate 2.1.2 is arranged on the upper end of the slide 2.1.1, and a plurality of rotating shafts 2.1.4 are arranged on the support plate 2.1.2. The horizontal clamping drive 2.1.5 drives the rotating shaft 2.1.4 to rotate. The horizontal clamping drive 2.1.5 includes a motor and a gear or chain mechanism. A gear plate is provided at the end of each rotating shaft 2.1.4 facing away from the chuck 2.1.3. The gear plate is matched with a chain. The chain cooperates with the gear on the output shaft of the motor, so that the rotation of the motor can drive each rotating shaft 2.1.4 to rotate. After the horizontal pipe clamping device 2.1 fixes the straight pipe member 8, the horizontal pipe clamping device 2.1 can drive the straight pipe member 8 to rotate coaxially, so that baking, painting and rust removal are uniform.

[0056] The clamp 2.1.3 comprises a rotary expansion mechanism and a clamping plate 2.1.3.1 arranged at the peripheral end of the rotary expansion mechanism; the rotary expansion mechanism is connected to the rotating shaft 2.1.4 to drive the clamping plate 2.1.3.1 to expand so as to tighten or loosen the inner wall of the pipe.

[0057] The rotary expansion mechanism comprises a threaded rod 2.1.3.2, a threaded sleeve 2.1.3.3, a fixed sleeve 2.1.3.4 and a hinged rod 2.1.3.5; the threaded rod 2.1.3.2 is connected to the rotating shaft 2.1.4, the threaded rod 2.1.3.2 is fixed with a fixed sleeve 2.1.3.4 and the threaded sleeve 2.1.3.3 is threadedly matched; the hinged rod 2.1.3.5 is arranged circumferentially along the threaded rod 2.1.3.2, and the hinged rod 2.1.3.5 comprises a fixed rod and a movable rod which are hinged to each other; one end of the fixed rod is hinged to the fixed sleeve 2.1.3.4, and the other end of the fixed rod is hinged to the splint 2.1.3.1; one end of the movable rod is hinged to the threaded sleeve 2.1.3.3, and the other end of the movable rod is slidably connected to the splint 2.1.3.1. When the shaft 2.1.4 rotates, the threaded rod 2.1.3.2 rotates with the shaft 2.1.4, so that the threaded sleeve 2.1.3.3 matched with the threaded rod 2.1.3.2 moves along the length direction of the threaded rod 2.1.3.2, so as to realize the expansion of the hinged rod 2.1.3.5, thereby realizing the regulation of the distance between the clamp 2.1.3.1 and the threaded rod 2.1.3.2, and the end surface of the clamp 2.1.3.1 facing away from the threaded rod 2.1.3.2 is preferably a curved surface, which is used to abut against the inner wall of the pipe fitting. For pipe fittings with different inner diameters, the expansion degree of the clamp 2.1.3.1 can be adjusted by rotating the shaft 2.1.4, so that its curved surface abuts against the inner wall of the pipe fitting to clamp and fix the pipe fitting. Since the clamp 2.1.3 is on the inner side of the pipe fitting, it will not affect the rust removal, painting and baking treatment effects of the outer wall of the pipe fitting.

[0058] In addition, compared with the clamping and fixing method of the pipe fitting by the chuck 2.1.3, the horizontal pipe clamping device 2.1 also includes a flange plate arranged on the rotating shaft 2.1.4; the flange plate is arranged at the end of the rotating shaft 2.1.4 facing away from the horizontal clamping drive 2.1.5 and is used to connect with the flange at the end of the pipe fitting. The flange plate is suitable for fixing pipe fittings with smaller inner diameters, and is particularly suitable for a large number of pipe fittings of the same size. It can fix multiple pipe fittings of the same size at the same time, thereby improving the efficiency of rust removal, painting and baking. For example, in this embodiment, there are four rotating shafts 2.1.4 with flange plates, and another rotating shaft 2.1.4 is provided with a chuck 2.1.3, and the rotating shaft 2.1.4 with the chuck 2.1.3 is at the top, so that one large-sized pipe fitting and four small-sized pipe fittings can be rust-removed, painted and baked simultaneously.

[0059] See also Figure 4 , Figure 5The vertical pipe clamping device 2.2 includes a bottom plate 2.2.1, a lifting push rod 2.2.2, a wedge-shaped connecting plate 2.2.3, a push plate 2.2.4, a slider 2.2.5 and a slide rail 2.2.6; the bottom plate 2.2.1 is slidably matched with the base frame 1.2, that is, the bottom plate 2.2.1 can adjust its position on the base frame 1.2, thereby adjusting the distance of the vertical pipe clamping device 2.2 relative to the horizontal pipe clamping device 2.1 or the rust removal device to adapt to pipes of different lengths. A lifting push rod 2.2.2 is arranged at the upper end of the base plate 2.2.1; a plurality of wedge-shaped connecting plates 2.2.3 are arranged along the circumferential end of the lifting push rod 2.2.2; the end of the wedge-shaped connecting plate 2.2.3 facing away from the lifting push rod 2.2.2 is matched with a push plate 2.2.4 through a wedge-shaped surface, and the wedge-shaped connecting plate 2.2.3 and the push plate 2.2.4 are connected by a spring 2.2.7; a slider 2.2.5 is arranged at the lower end of the push plate 2.2.4; the lower end of the slider 2.2.5 is matched with a slide rail 2.2.6 arranged at the upper end of the base plate 2.2.1 and radially arranged along the lifting push rod 2.2.2.

[0060] When the pipe fitting is vertically fixed on the vertical pipe clamping device 2.2, the lower end of the pipe fitting is a horizontal end face and is placed on the upper end of the bottom plate 2.2.1, and the lifting push rod 2.2.2, the wedge-shaped connecting plate 2.2.3, the push plate 2.2.4, the slider 2.2.5 and the slide rail 2.2.6 are all on the inner side of the pipe fitting. When the lifting push rod 2.2.2 is lowered, the push plate 2.2.4 is squeezed under the action of the wedge-shaped connecting plate 2.2.3, so that the push plate 2.2.4 moves away from the lifting push rod 2.2.2 on the slide rail 2.2.6, and the push plate 2.2.4 is pressed against the inner wall of the pipe fitting to fix the pipe fitting. When the lifting push rod 2.2.2 moves in the opposite direction, under the action of the spring 2.2.7, the push plate 2.2.4 leaves the inner wall of the pipe fitting, and the pipe fitting can be removed from the vertical pipe clamping device 2.2. The inclination angle and length of the wedge-shaped surface of the wedge-shaped connecting plate 2.2.3 and the push plate 2.2.4 in this embodiment are only one of many possible implementation methods, and this embodiment does not limit its specific size or number.

[0061] The bent pipe clamping device comprises two horizontal pipe clamping devices 2.1 and at least one vertical pipe clamping device 2.2 arranged between the two horizontal pipe clamping devices 2.1. Figure 4 As shown, the lower end of the bent pipe member 9 is a vertical portion, which can be fixed by a vertical pipe clamping device 2.2, while the upper end of the bent pipe member 9 is a horizontal portion, which can be fixed by a horizontal pipe clamping device 2.1.

[0062] See also Figure 6 , Figure 7 , Figure 8The rust removal mechanism 3 includes a wire wheel 3.1 and a rust removal driving mechanism for driving the wire wheel 3.1 to rotate and move; the rust removal driving mechanism includes a rust removal bracket 3.5 and a lifting driving mechanism 3.2, a horizontal driving mechanism 3.3 and a rotating driving mechanism 3.4 arranged on the rust removal bracket 3.5; the rust removal bracket 3.5 is arranged at the side end of the track 1.1, and there are two rust removal mechanisms 3 in this embodiment, which are arranged on both sides of the track 1.1 respectively. Of course, in fact, there can be more rust removal mechanisms 3, and they are arranged on both sides of the track 1.1 respectively.

[0063] The rotation drive mechanism 3.4 is connected to the wire wheel 3.1 to drive the wire wheel 3.1 to rotate; the horizontal drive mechanism 3.3 is connected to the rotation drive mechanism 3.4 to drive the rotation drive mechanism 3.4 to move horizontally along the radial direction of the wire wheel 3.1; the lifting drive mechanism 3.2 is connected to the horizontal drive mechanism 3.3 to drive the horizontal drive mechanism 3.3 to lift.

[0064] Specifically, the rotation drive mechanism 3.4 includes a rotation motor 3.4.1, a belt 3.4.2, a transmission shaft 3.4.3 and a steel wheel shaft 3.4.4; a plurality of steel wire wheels 3.1 are coaxially connected to the steel wheel shaft 3.4.4. In this embodiment, two steel wire wheels 3.1 are coaxially and spaced apart on one steel wheel shaft 3.4.4.

[0065] The horizontal driving mechanism 3.3 includes an electric push rod 3.3.1, a slide 3.3.2 and a fixed frame 3.3.3; the fixed frame 3.3.3 is connected to the lifting driving mechanism 3.2; the electric push rod 3.3.1 is horizontally installed on the fixed frame 3.3.3, and the electric push rod 3.3.1 is connected to the horizontally arranged slide 3.3.2, and the electric push rod 3.3.1 is horizontally telescopic to drive the slide 3.3.2 to move horizontally. The transmission shaft 3.4.3 and the rotating motor 3.4.1 are fixed on the upper end of the slide 3.3.2, and the transmission shaft 3.4.3 is connected to the slide 3.3.2 through a bearing. The output shaft of the rotating motor 3.4.1 is connected to the transmission shaft 3.4.3 through a belt 3.4.2, which is used to drive the transmission shaft 3.4.3 to rotate, and the transmission shaft 3.4.3 is connected to the steel wheel shaft 3.4.4 through another belt 3.4.2 to drive the steel wheel shaft 3.4.4 to rotate, thereby driving the wire wheel 3.1 to rotate. The contact distance between the wire wheel 3.1 and the outer wall of the pipe can be adjusted by the electric push rod 3.3.1, and the rotating motor 3.4.1 is started, and the wire wheel 3.1 rotates and rubs the outer wall of the pipe to remove rust from the outer wall of the pipe. In this embodiment, the rust removal of the pipe refers to rubbing the outer wall of the pipe to remove rust.

[0066] The lifting drive mechanism 3.2 includes a lifting motor 3.2.1, a transmission chain 3.2.2 and a lifting plate 3.2.3; the output shaft of the lifting motor 3.2.1 is connected to the transmission chain 3.2.2, the transmission chain 3.2.2 is vertically arranged, and is connected to the horizontally arranged lifting plate 3.2.3, the lifting plate 3.2.3 also slides with the vertically arranged rust removal bracket 3.5, under the action of the lifting motor 3.2.1, the lifting plate 3.2.3 is vertically lifted and lowered, driving the fixed frame 3.3.3 connected to the lifting plate 3.2.3 to be vertically lifted and lowered, thereby adjusting the height of the wire wheel 3.1.

[0067] The painting mechanism 4 includes a painting robot disposed on at least one side of the track 1.1; the painting robot may be of existing technology and is not specifically limited in this embodiment.

[0068] The paint baking mechanism 5 includes a heating plate 5.2 and a soaking plate 5.1 disposed on both sides of the track 1.1; the soaking plate 5.1 is evenly provided with a plurality of through holes; the soaking plate 5.1 is disposed between the heating plate 5.2 and the track 1.1. Through the through holes on the soaking plate 5.1, the heat of the heating plate 5.2 is evenly dissipated to the pipe fittings, and the pipe fittings are evenly heated, thereby ensuring the paint baking effect.

[0069] In order to avoid air pollution, a gas collection device is also provided in the box 6 to collect waste gas and dust emitted during the painting and rust removal processes; the gas collection device includes an air collecting trough arranged at the bottom of the box 6 and a blower arranged at the top of the box 6, the blowers are evenly arranged on both sides of the track 1.1, and the air outlet of the blower is inclined downward, so that the waste gas, dust, paint spray, etc. generated during the rust removal and painting processes are blown into the air collecting trough and discharged after filtration.

[0070] The method for automated pipe rust removal, spray painting and baking of this embodiment comprises the following steps:

[0071] Step 1: Use the hoisting device 7 to hoist the pipe to be derusted onto the clamping mechanism 2, and clamp the pipe to be derusted onto the conveying mechanism 1 through the clamping mechanism 2; during actual construction, the pipe to be derusted is placed on one side of the conveying mechanism 1, and the completed pipe is placed on the other side of the conveying mechanism 1. The hoisting device 7 is an existing known device. The pipe to be derusted can be a straight pipe 8 or a curved pipe 9. Figure 1 For example, the pipe to be derusted in this embodiment is a straight pipe 8.

[0072] Step 2: The pipe to be derusted that has been fixed in step 1 is transported to the rust removal mechanism 3 through the conveying mechanism 1, and the wire wheel 3.1 of the rust removal mechanism 3 rotates and rubs along the outer wall of the pipe to be derusted to remove rust. After the rust on the outer wall of the pipe to be derusted is completed, the pipe to be painted is formed, and at the same time, the conveying mechanism 1 drives the pipe to be painted to move toward the painting mechanism 4; since the pipe to be painted has a certain length, in order to improve the processing efficiency of the pipe, while some areas of the pipe to be painted are still undergoing rust removal, some pipes to be painted that have completed rust removal are already undergoing painting.

[0073] Step three: the paint spraying mechanism 4 sprays paint on the outer wall of the pipe to be painted. After the outer wall of the pipe to be painted is completed, the pipe to be baked is formed. At the same time, the conveying mechanism 1 drives the pipe to be baked to move toward the paint baking mechanism 5; when the pipe to be painted is moved to the paint spraying mechanism 4, the spraying robot automatically sprays paint on it.

[0074] Step 4: the paint baking mechanism 5 bakes the outer wall of the pipe fitting to be painted to form a finished pipe fitting, and the conveying mechanism 1 drives the finished pipe fitting to move toward the hoisting device 7; the hoisting device 7 removes the finished pipe fitting from the clamping mechanism 2.

[0075] It should be noted that the baking, painting and rust removal of the same straight pipe 8 can be carried out simultaneously, that is, when the end of a straight pipe 8 is still undergoing rust removal or has not yet been rusted, the other parts of the straight pipe 8 can be respectively painted and baked. When multiple straight pipes 8 are loaded on the clamping mechanism 2, the rust removal, painting and baking of the topmost straight pipe 8 can be carried out first, and then the topmost straight pipe 8 is taken out by the lifting equipment 7, and then the rust removal, painting and baking of the next layer of straight pipes 8 are carried out; and this is carried out in sequence until all straight pipes 8 are processed. Of course, multiple layers of straight pipes 8 can also be processed synchronously, that is, the cooperation of the lifting drive mechanism 3.2 and the conveying drive mechanism 1.3 allows the straight pipe 8 to move while the wire wheel 3.1 is vertically displaced to grind and rust-removal multiple straight pipes 8 in the same vertical direction.

[0076] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An automatic pipe rust removal, paint spraying and baking device, characterized by: It includes conveying mechanism, clamping mechanism, rust removal mechanism, painting mechanism and baking paint mechanism; The conveying mechanism comprises a track, a chassis and a conveying drive mechanism; the rust removal mechanism, the paint spraying mechanism and the paint baking mechanism are sequentially arranged along the length direction of the track; the chassis is arranged on the track; the conveying drive mechanism is used to drive the chassis to move along the track; The clamping mechanism is arranged on the base frame, and the clamping mechanism is used to clamp the pipe fitting; The rust removal mechanism comprises a wire wheel and a rust removal driving mechanism for driving the wire wheel to rotate and move; The painting mechanism comprises a painting robot disposed on at least one side of the track; The paint baking mechanism includes heating plates arranged on both sides of the track; The clamping mechanism comprises two horizontal pipe clamping devices arranged on the base frame in opposite directions; the horizontal pipe clamping device comprises a slide, a support plate, a clamp, a rotating shaft and a horizontal clamping driving member; the slide is slidably matched with the base frame; the support plate is arranged on the upper end of the slide, a plurality of rotating shafts are arranged on the support plate, and the horizontal clamping driving member drives the rotating shaft to rotate; the clamp comprises a rotary expansion mechanism and a clamping plate arranged on the peripheral side end of the rotary expansion mechanism; the rotary expansion mechanism is connected to the rotating shaft to drive the clamping plate to expand so as to tighten or loosen the inner wall of the pipe fitting; The rotary expansion mechanism comprises a threaded rod, a threaded sleeve, a fixed sleeve and a hinged rod; the threaded rod is connected to the rotating shaft, a fixed sleeve is fixed on the threaded rod and a threaded sleeve is matched with the thread; the hinged rod is arranged along the circumference of the threaded rod, and the hinged rod comprises a fixed rod and a movable rod that are hinged to each other; one end of the fixed rod is hinged to the fixed sleeve, and the other end of the fixed rod is hinged to the clamping plate; one end of the movable rod is hinged to the threaded sleeve, and the other end of the movable rod is slidably connected to the clamping plate; The clamping mechanism includes a vertical pipe clamping device arranged on the base frame; the vertical pipe clamping device includes a base plate, a lifting push rod, a wedge-shaped connecting plate, a push plate, a slider and a slide rail; the base plate is slidably matched with the base frame; the lifting push rod is arranged at the upper end of the base plate; multiple wedge-shaped connecting plates are arranged along the circumferential end of the lifting push rod; the end of the wedge-shaped connecting plate facing away from the lifting push rod is matched with a push plate through a wedge-shaped surface, and the wedge-shaped connecting plate is connected to the push plate through a spring; a slide plate is provided at the lower end of the push plate; the lower end of the slide rail is matched with a slide rail arranged at the upper end of the base plate and radially along the lifting push rod.

2. The automatic pipe rust removal, paint spraying and baking device according to claim 1 is characterized by: The horizontal pipe clamping device also includes a flange plate arranged on the rotating shaft; the flange plate is arranged at one end of the rotating shaft facing away from the horizontal clamping driving member and is used for connecting with the pipe flange.

3. The automatic pipe rust removal, paint spraying and baking device according to claim 1 is characterized in that: The clamping mechanism comprises a bent pipe clamping device, and the bent pipe clamping device comprises two horizontal pipe clamping devices and at least one vertical pipe clamping device arranged between the two horizontal pipe clamping devices.

4. The automatic pipe rust removal, paint spraying and baking device according to claim 1 is characterized by: The rust removal drive mechanism includes a rust removal bracket and a lifting drive mechanism, a horizontal drive mechanism and a rotation drive mechanism arranged on the rust removal bracket; the rust removal bracket is arranged at the side end of the track; the rotation drive mechanism is connected to the wire wheel for driving the wire wheel to rotate; the horizontal drive mechanism is connected to the rotation drive mechanism for driving the rotation drive mechanism to move horizontally along the radial direction of the wire wheel; the lifting drive mechanism is connected to the horizontal drive mechanism for driving the horizontal drive mechanism to lift and lower.

5. The automatic pipe rust removal, paint spraying and baking device according to claim 1 is characterized by: The paint baking mechanism further includes a soaking plate; a plurality of through holes are evenly arranged on the soaking plate; and the soaking plate is arranged between the heating plate and the track.

6. A method for automatic pipe rust removal, spray paint and baking, implemented by using the automatic pipe rust removal, spray paint and baking device as claimed in claim 1, characterized in that: The method comprises the following steps: Step 1: hoist the pipe to be derusted onto the clamping mechanism using a hoisting device, and clamp the pipe to be derusted onto the conveying mechanism using the clamping mechanism; Step 2: The pipe to be derusted fixed in step 1 is transported to the rust removal mechanism by the conveying mechanism, and the wire wheel of the rust removal mechanism rotates and rubs along the outer wall of the pipe to be derusted to remove rust. After the outer wall of the pipe to be derusted is derusted, it becomes a pipe to be painted. At the same time, the conveying mechanism drives the pipe to be painted to move toward the paint spraying mechanism; Step 3: The paint spraying mechanism sprays paint on the outer wall of the pipe to be painted, and after the outer wall of the pipe to be painted is completed, the pipe to be painted is formed, and at the same time, the conveying mechanism drives the pipe to be painted to move toward the paint spraying mechanism; Step 4: the paint baking mechanism bakes the outer wall of the pipe to be painted to form a finished pipe, and the conveying mechanism drives the finished pipe to move toward the lifting device; the lifting device removes the finished pipe from the clamping mechanism.

7. The method for automatic pipe rust removal, spray painting and baking according to claim 6, characterized in that: The pipe fitting to be derusted is a straight pipe fitting or a bent pipe fitting; the baking, painting and derusting of the same straight pipe fitting are carried out simultaneously.

Images