Epoxy powder spraying equipment and steel pipe machining production line

Abstract

The utility model provides epoxy powder spraying equipment and a steel pipe machining production line, and relates to the field of steel pipe production equipment. The epoxy powder spraying equipment comprises a supporting device and a spraying device. The supporting device is used for supporting and driving a to-be-machined steel pipe to rotate around the axis of the steel pipe. The spraying device comprises a walking mechanism and a spraying mechanism, the spraying mechanism comprises a support, a plurality of powder sprayers and an inductive switch, the support is installed on the walking mechanism, and the powder sprayers are installed on the support and arranged at intervals in the preset direction; the walking mechanism is used for conducting reciprocating motion relative to the supporting device in the preset direction so that the multiple powder spraying heads can sequentially pass through the to-be-machined steel pipe in the axial direction of the to-be-machined steel pipe. The inductive switch is matched with the multiple powder spraying heads and used for independently controlling starting and stopping of each powder spraying head. The spraying equipment can independently control the working state of the powder spraying head according to the position of the steel pipe, material waste is reduced, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of steel pipe production equipment, and more specifically, to an epoxy powder spraying device and a steel pipe processing production line. Background Art

[0002] At present, epoxy-coated steel pipes are widely used in personal and municipal water supply and drainage projects. The methods for producing epoxy-coated steel pipes are basically the same. The steel pipes need to be heated to a set temperature before spraying epoxy powder. Then, the epoxy powder absorbs part of the remaining heat of the steel pipe for cross-linking reaction until the powder is completely cured and finally firmly adheres to the surface of the steel pipe. In the prior art, the production equipment for epoxy-coated steel pipes is generally divided into two types. One is to use an intermediate frequency coil to preheat the steel pipe to be coated with electricity, that is, on the production line, the steel pipe is axially moved by the transmission roller to form a straight rotation, and the steel pipe is evenly passed through the intermediate frequency heating coil to locally heat the steel pipe. Generally, the temperature required for heating the steel pipe is controlled by setting the intermediate frequency heating power or the speed of the steel pipe walking. After the steel pipe passes through the heating coil and reaches the powder spraying chamber, the epoxy powder spray gun is used to spray the inside and outside of the steel pipe. This method sprays while heating. Since the epoxy powder just sprayed on the surface of the steel pipe needs to absorb heat, melt, level, and cross-link, it is not allowed to be contacted by foreign objects in a short time. Otherwise, contacting with the bottom transmission roller will cause uneven adhesion of the coating on the surface of the steel pipe, and even expose the surface of the steel pipe and lose the anti-corrosion effect. Only after the epoxy coating sprayed on the surface of the steel pipe is cured and microcrystallized can it be contacted by the transmission roller. Therefore, not only the electric heating energy consumption is high and the cost is large, but also the speed of powder spraying should not be too fast, resulting in low processing efficiency.

[0003] The spraying process of another equipment is to put the steel pipe into the preheating furnace, use resistance wire or natural gas to heat the whole steel pipe at one time, and then place the whole steel pipe on a special device after reaching the required temperature. After rotating the steel pipe, spray the inside and outside. This spraying method requires a fast spraying speed, otherwise the residual temperature of the steel pipe cannot ensure sufficient cross-linking reaction of the epoxy powder, thereby affecting the adhesion of the epoxy coating on the surface of the steel pipe. The faster the spraying powder speed, the more spray guns are needed, and the spray guns are not allowed to be arranged in too many layers, otherwise the sprayed epoxy powder will be too large to adhere to the surface of the steel pipe, resulting in a waste of raw materials. Therefore, the length of the spray gun arrangement will be longer. This spraying method uses an external spray truck carrying an epoxy spray gun to walk from one end of the steel pipe to the other end of the steel pipe at a uniform speed. In this way, each spray gun must spray the steel pipe from beginning to end continuously. When the external spray truck is moving and the sensor senses that the first spray gun has reached the end of the steel pipe to be processed, all the epoxy spray guns will be started at the same time to spray epoxy powder. The same is true for the end of the steel pipe. Only when the last epoxy spray gun leaves the end of the steel pipe can all the spray guns be closed, resulting in a large amount of epoxy powder at both ends of the steel pipe being sprayed onto the equipment or the ground, causing dust to fly all over the sky, affecting the on-site environment to a certain extent. The inability to recover the epoxy powder in time also greatly wastes the raw materials for production. Utility Model Content

[0004] The utility model aims to provide an epoxy powder spraying device and a steel pipe processing production line, which can independently control the start and stop of each powder spraying head, save materials, and reduce processing and manufacturing costs.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides an epoxy powder spraying device, comprising:

[0007] A supporting device and a spraying device, wherein the supporting device is used to support and drive the steel pipe to be processed to rotate around its own axis; the spraying device includes a walking mechanism and a spraying mechanism, and the spraying mechanism includes a bracket, a plurality of powder spraying heads and an induction switch, the bracket is installed on the walking mechanism, and the plurality of powder spraying heads are installed on the bracket and arranged at intervals in a preset direction; the walking mechanism is used to reciprocate the supporting device in the preset direction, so that the plurality of powder spraying heads pass through the steel pipe to be processed in sequence in the axial direction of the steel pipe to be processed;

[0008] The induction switch cooperates with the plurality of powder spray heads, and the induction switch is used to independently control the start and stop of each of the powder spray heads.

[0009] In an alternative embodiment, the induction switch includes a plurality of control units, and the plurality of control units respectively cooperate with the plurality of powder spraying nozzles in a one-to-one correspondence. Each control unit is used to respectively control the start and stop of the corresponding powder spraying nozzle.

[0010] Based on the above solution, each powder spraying nozzle is independently controlled, which is convenient and accurate to operate.

[0011] In an alternative embodiment, the spraying device further includes a first positioning transmitter and a second positioning transmitter. The plurality of control units are all installed on the bracket and arranged in a preset direction. The first positioning transmitter and the second positioning transmitter are arranged at intervals in the preset direction. Each control unit is used to receive the signals emitted by the first positioning transmitter and the second positioning transmitter.

[0012] During the process that the traveling mechanism drives the bracket to reciprocate relative to the supporting device, when each control unit first receives the signal emitted by the first positioning transmitter or the second positioning transmitter, it controls the corresponding powder spraying nozzle to open. When the control unit receives the signal emitted by the first positioning transmitter or the second positioning transmitter again, it controls the corresponding powder spraying nozzle to close.

[0013] Based on the above solution, through the cooperation of the first positioning transmitter and the second positioning transmitter, it is possible to realize spraying on the steel pipe to be processed during the process that the traveling mechanism drives the spraying mechanism to reciprocate relative to the steel pipe to be processed, thereby improving the operation efficiency. Specifically, it is set that the first positioning transmitter is located on the left side of the second positioning transmitter. In the initial state, the traveling mechanism is located on the left side of the steel pipe to be processed. After starting, the traveling mechanism moves from left to right. When each control unit first passes the first positioning transmitter, the control unit receives the signal emitted by the first positioning transmitter, and the control unit controls the corresponding powder spraying nozzle to open for spraying. When all the powder spraying nozzles have passed the first positioning transmitter in sequence, all the powder spraying nozzles are opened. The traveling mechanism continues to move from left to right. When each control unit passes the second positioning transmitter, the control unit receives the signal emitted by the second positioning transmitter, and the control unit controls the corresponding powder spraying nozzle to close. In this way, when all the control units on the traveling mechanism have passed the second positioning transmitter, all the powder spraying nozzles are closed. The traveling mechanism moves to the right side of the steel pipe to be processed, completing one spraying operation. When it is necessary to perform a second spraying on the steel pipe to be processed or spray a new steel pipe, the traveling mechanism drives the spraying mechanism to move from right to left. Each control unit first passes the second positioning transmitter, and the control unit controls the corresponding powder spraying nozzle to open. When all the control units have passed the second positioning transmitter, all the powder spraying nozzles are opened. The traveling mechanism continues to move to the left. When the control unit passes the first positioning transmitter, the control unit controls the corresponding powder spraying nozzle to close. When all the control units have passed the first positioning transmitter, all the powder spraying nozzles are closed. Just repeat this cycle of work.

[0014] In an alternative embodiment, the first positioning emitter is installed at a position directly facing the first end face of the steel pipe to be processed in the vertical direction, and the second positioning emitter is installed at a position directly facing the second end face of the steel pipe to be processed in the vertical direction. The first end face and the second end face are arranged axially on the steel pipe to be processed; a plurality of the control units are respectively arranged directly opposite to a plurality of the powder spraying nozzles in the vertical direction.

[0015] Based on the above solution, a plurality of control units are directly opposite and cooperate with a plurality of powder spraying nozzles. Moreover, the first positioning emitter and the second positioning emitter are also directly opposite to the two end faces of the steel pipe to be processed. In this way, it is convenient to assemble the positions of the powder spraying nozzles and the control units, reducing the assembly difficulty, improving the assembly efficiency, and improving the assembly accuracy.

[0016] In an alternative embodiment, the supporting device includes a base and two supporting units. Each supporting unit includes a support and two driving components installed on the support. The support is installed on the base, and the two supports are arranged at intervals; the two driving components of the same supporting unit are used to cooperate to carry the steel pipe to be processed and can drive the steel pipe to be processed to rotate.

[0017] Based on the above solution, the two supporting units cooperate to carry the steel pipe to be processed, and the position of the steel pipe to be processed is stable. During the powder spraying process, the steel pipe to be processed is not easily tilted or displaced, and the powder spraying quality is not easily affected. At the same time, when the two supporting units support the steel pipe to be processed, they can also drive the steel pipe to be processed to rotate. When the powder spraying nozzle sprays powder onto the surface of the steel pipe, with the rotation of the steel pipe to be processed, the powder can be evenly distributed on the circumferential surface of the steel pipe to be processed.

[0018] In an alternative embodiment, the driving component includes a motor and a driving roller. The motor is fixed on the support, and the driving roller is fixed on the output shaft of the motor. A plurality of the driving rollers cooperate to carry the steel pipe to be processed.

[0019] Based on the above solution, the driving roller rotates driven by the motor, and can drive the steel pipe to be processed to rotate by relying on the frictional force. By adjusting the rotation speed of the driving roller, the rotation speed of the steel pipe to be processed can be adaptively adjusted, and the rotation speed of the steel pipe to be processed is convenient to control.

[0020] In an alternative embodiment, the supporting device further includes a collecting member, and the collecting member is installed on the support for receiving the materials falling from the steel pipe to be processed.

[0021] Based on the above solution, during the powder spraying process, some of the powder leaves the surface of the steel pipe to be processed and can fall into the collecting member, not easily scattered everywhere, not easily affecting the environmental hygiene, and the collected powder can be reused, improving the resource utilization rate.

[0022] In an alternative embodiment, the collecting member is movably connected to the support.

[0023] Based on the above solution, when the amount of powder collected in the collecting member meets the threshold, the collecting member can be operated to move away from the support, facilitating the cleaning of the collecting member.

[0024] In an alternative embodiment, the powder spraying angles of the plurality of powder spraying nozzles are set to be the same.

[0025] Based on the above solution, the assembly of the plurality of powder spraying nozzles is convenient and fast.

[0026] In a second aspect, the present utility model provides a steel pipe processing production line, comprising:

[0027] The epoxy powder spraying equipment according to any one of the foregoing embodiments.

[0028] The beneficial effects of the embodiments of the present utility model are:

[0029] In summary, for the epoxy powder spraying equipment provided in this embodiment, by setting an induction switch, the induction switch cooperates with a plurality of powder spraying nozzles at the same time, and the induction switch can independently control the opening and closing of each powder spraying nozzle. In this way, during the process that the traveling mechanism drives the spraying mechanism to move relative to the steel pipe to be processed, when the head end of the steel pipe to be processed just enters the powder spraying area, the induction switch obtains the corresponding position of the steel pipe to be processed, and controls the powder spraying nozzle located at the head end among the plurality of powder spraying nozzles to start through the induction signal, and starts the powder spraying operation on the steel pipe to be processed from the head end of the steel pipe to be processed. The remaining powder spraying nozzles are not opened and will not spray powder, reducing the waste of powder. Then, as the traveling mechanism drives the spraying mechanism to move towards the tail end of the steel pipe to be processed, the position of the steel pipe to be processed obtained by the induction switch changes continuously, and the subsequent corresponding powder spraying nozzles are sequentially opened under the control of the induction switch to perform the spraying operation on the steel pipe to be processed. Since the powder spraying nozzles at the corresponding positions are only opened after the steel pipe to be processed reaches the set position, powder can be saved and the powder spraying cost can be reduced.

[0030] Similarly, when the tail end of the steel pipe to be processed leaves the spraying area, the powder spraying nozzle at the head end stops operating first, and the subsequent plurality of powder spraying nozzles stop operating sequentially until the tail end of the steel pipe to be processed leaves the position where the last powder spraying nozzle is located, and the last powder spraying nozzle at the tail end stops operating. Compared with the prior art, where all the powder spraying nozzles need to stop operating only when the tail end of the steel pipe to be processed leaves the last powder spraying nozzle at the tail end, a large amount of materials can be saved. Description of the Drawings

[0031] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant attached drawings can also be obtained based on these attached drawings.

[0032] Figure 1 Schematic diagram of a perspective view of the epoxy powder spraying equipment according to an embodiment of the present utility model;

[0033] Figure 2 Schematic diagram of another perspective view of the epoxy powder spraying equipment according to an embodiment of the present utility model;

[0034] Figure 3 Control flowchart of the epoxy powder spraying equipment according to an embodiment of the present utility model.

[0035] Icon:

[0036] 001 - Steel pipe to be processed; 100 - Support device; 110 - Base; 120 - Support unit; 121 - Support; 122 - Driving assembly; 1221 - Motor; 1222 - Driving roller; 200 - Spraying device; 210 - Traveling mechanism; 220 - Spraying mechanism; 221 - Bracket; 222 - Powder spraying head; 223 - Inductive switch; 2231 - Control unit; 2232 - First positioning transmitter; 2233 - Second positioning transmitter; 300 - Collection piece; 400 - Track. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the attached drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present utility model provided in the attached drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0039] It should be noted that: Similar reference numerals and letters represent similar items in the following attached drawings. Therefore, once an item is defined in one attached drawing, it does not need to be further defined and explained in subsequent attached drawings.

[0040] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0041] In addition, the terms "horizontal", "vertical", etc. do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0042] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] In the prior art, in order to improve the powder spraying efficiency, a plurality of powder spray heads 222 are arranged in a row along the axial extension direction of the steel pipe. A plurality of powder spray heads 222 are all controlled by one switch. When the head end of the steel pipe just enters the spraying area, all the powder spray heads 222 are opened, and when the tail end of the steel pipe leaves the spraying area, all the powder spray heads 222 are closed. Thus, a large amount of powder is consumed during the entire spraying process, and the cost is high.

[0044] In view of this, the designer provides an epoxy powder spraying device, which can reduce the amount of powder and lower the processing and manufacturing cost.

[0045] Please combine Figures 1 - 3, in this embodiment, the epoxy powder spraying equipment includes a support device 100 and a spraying device 200. The support device 100 is used to support and drive the steel pipe 001 to be processed to rotate around its own axis; the spraying device 200 includes a traveling mechanism 210 and a spraying mechanism 220. The spraying mechanism 220 includes a bracket 221, a plurality of powder spraying nozzles 222 and an induction switch 223. The bracket 221 is installed on the traveling mechanism 210, and the plurality of powder spraying nozzles 222 are installed on the bracket 221 and are arranged at intervals in a preset direction; the traveling mechanism 210 is used to reciprocate relative to the support device 100 in the preset direction, so that the plurality of powder spraying nozzles 222 sequentially pass through the steel pipe 001 to be processed in the axial direction of the steel pipe 001 to be processed. The induction switch 223 cooperates with the plurality of powder spraying nozzles 222, and the induction switch 223 is used to independently control the start and stop of each powder spraying nozzle 222.

[0046] It should be noted that during the normal operation process, the preset direction is parallel to the axis of the steel pipe 001 to be processed.

[0047] As described above, the working mode of the epoxy powder spraying equipment provided in this embodiment is as follows:

[0048] By setting the induction switch 223, the induction switch 223 cooperates with the plurality of powder spraying nozzles 222 at the same time, and the induction switch 223 can independently control the opening and closing of each powder spraying nozzle 222. Thus, during the process of the traveling mechanism 210 driving the spraying mechanism 220 to move relative to the steel pipe 001 to be processed, when the head end of the steel pipe 001 to be processed just enters the powder spraying area, the induction switch 223 obtains the position of the steel pipe 001 to be processed, and controls the powder spraying nozzle 222 located at the head end among the plurality of powder spraying nozzles 222 to start, and performs powder spraying operation on the head end of the steel pipe 001 to be processed. The remaining powder spraying nozzles 222 are not opened, and the remaining powder spraying nozzles 222 do not spray powder, reducing powder waste. Then, as the traveling mechanism 210 drives the spraying mechanism 220 to move towards the tail end of the steel pipe 001 to be processed, the position of the steel pipe 001 to be processed obtained by the induction switch 223 changes continuously, and the subsequent corresponding powder spraying nozzles 222 are sequentially opened to perform spraying operation on the steel pipe 001 to be processed. Since the powder spraying nozzle 222 at the corresponding position is only opened after the steel pipe 001 to be processed reaches the set position, powder can be saved and the powder spraying cost can be reduced.

[0049] Similarly, when the tail end of the steel pipe 001 to be processed leaves the spraying area, the powder spraying nozzle 222 at the head end stops working first, and the subsequent plurality of powder spraying nozzles 222 stop working sequentially until the tail end of the steel pipe 001 to be processed leaves the position where the last powder spraying nozzle 222 is located, and the last powder spraying nozzle 222 at the tail end stops working. Compared with the prior art, it is necessary for the tail end of the steel pipe 001 to be processed to leave the last powder spraying nozzle 222 at the tail end before all the powder spraying nozzles 222 stop working, which can save a large amount of materials.

[0050] The following embodiments will illustrate the details of the epoxy powder spraying equipment provided by the present application by way of example.

[0051] In this embodiment, optionally, the induction switch 223 includes a plurality of control units 2231. The plurality of control units 2231 are respectively in one-to-one correspondence with a plurality of powder spraying nozzles 222. The number of control units 2231 is equal to the number of powder spraying nozzles 222, and the control is more accurate and reliable. For example, each control unit 2231 is directly opposite to a corresponding powder spraying nozzle 222 in the vertical direction, that is, each control unit 2231 is located directly below the corresponding powder spraying nozzle 222. It should be understood that the number of control units 2231 is consistent with the number of powder spraying nozzles 222, and the specific number is not limited in this embodiment.

[0052] Please refer to Figure 1 , optionally, the spraying device 200 further includes a first positioning transmitter 2232 and a second positioning transmitter 2233. The plurality of control units 2231 are all installed on the bracket 221 and arranged in a preset direction. The plurality of control units 2231 are in one-to-one correspondence with a plurality of powder spraying nozzles 222; the first positioning transmitter 2232 and the second positioning transmitter 2233 are both installed on the support device 100 and arranged at intervals in a preset direction. Each control unit 2231 is configured to receive the signals emitted by the first positioning transmitter 2232 and the second positioning transmitter 2233. During the process that the traveling mechanism 210 drives the bracket 221 to reciprocate relative to the support device 100, when each control unit 2231 first receives the signal emitted by the first positioning transmitter 2232 or the second positioning transmitter 2233, it controls the corresponding powder spraying nozzle 222 to open, and when the control unit 2231 receives the signal emitted by the first positioning transmitter 2232 or the second positioning transmitter 2233 again, it controls the corresponding powder spraying nozzle 222 to close. That is to say, when the traveling mechanism 210 moves relative to the steel pipe 001 to be processed from left to right or from right to left, each induction switch 223 will successively pass by the first positioning transmitter 2232 and the second positioning transmitter 2233, or successively pass by the second positioning transmitter 2233 and the first positioning transmitter 2232. When each induction switch 223 first passes by one of the first positioning transmitter 2232 and the second positioning transmitter 2233, the induction signal emitted by the induction switch 223 controls the corresponding powder spraying nozzle 222 to open, and then when it passes by the other of the first positioning transmitter 2232 and the second positioning transmitter 2233 again, the induction signal emitted by the induction switch 223 controls the corresponding powder spraying nozzle 222 to close. In this way, during the process that the traveling mechanism 210 drives the spraying mechanism 220 to reciprocate relative to the steel pipe 001 to be processed, the steel pipe 001 to be processed can be sprayed, improving the efficiency.

[0053] It should be understood that the first positioning emitter 2232 is installed at a position vertically facing the first end face of the steel pipe 001 to be processed, and the second positioning emitter 2233 is installed at a position vertically facing the second end face of the steel pipe 001 to be processed. The first end face and the second end face are arranged axially on the steel pipe 001 to be processed. A plurality of control units 2231 are respectively arranged vertically opposite to a plurality of powder spraying nozzles 222 one by one. Among them, taking Figure 1 as an example, the first end face is the left end and the second end face is the right end.

[0054] With such a design, the number of control units 2231 is equal to the number of powder spraying nozzles 222 and they are in one-to-one correspondence and cooperation. Each control unit 2231 can independently correspond to one powder spraying nozzle 222. A plurality of induction switches 223 can all be connected to the controller that controls the start and stop of all powder spraying nozzles 222 through wires. Please refer to Figure 1, in the initial state, the first positioning transmitter 2232 is located on the left side of the second positioning transmitter 2233, and the traveling mechanism 210 is located on the left side of the steel pipe 001 to be processed. When the traveling mechanism 210 does not drive the spraying mechanism 220 to run to the spraying position of the steel pipe 001 to be processed, that is, when the signal emitted by the first positioning transmitter 2232 corresponding to the left end of the steel pipe 001 to be processed is not received by the control unit 2231, the controller will not start the corresponding powder spraying head 222. After the traveling mechanism 210 starts and moves from left to right, when each powder spraying head 222 just moves to the left end face of the steel pipe 001 to be processed, the corresponding control unit 2231 just receives the signal emitted by the first positioning transmitter 2232, and the controller controls the corresponding powder spraying head 222 to start according to this induction signal, so that each powder spraying head 222 starts spraying operations from the left end face of the steel pipe 001 to be processed, and the powder spraying heads 222 that have not reached the left end face of the steel pipe 001 to be processed will not be opened, saving materials. As the traveling mechanism 210 drives the control unit 2231 and the powder spraying heads 222 to continue moving relative to the steel pipe 001 to be processed, the signals emitted by the first positioning transmitter 2232 are sequentially received by multiple control units 2231, so that all the powder spraying heads 222 are sequentially opened through the controller. Each powder spraying head 222 is independently controlled and operates independently, which is convenient to operate and reliable in operation. As the traveling mechanism 210 continues to move to the right relative to the steel pipe 001 to be processed, when each powder spraying head 222 just leaves the right end face of the steel pipe 001 to be processed, at this time, the control unit 2231 corresponding to the powder spraying head 222 is also exactly aligned with the position of the second positioning transmitter 2233 corresponding to the right end face of the steel pipe 001 to be processed. The control unit 2231 receives the signal emitted by the second positioning transmitter 2233, and the controller controls the corresponding powder spraying head 222 to stop spraying according to this induction signal, that is, each powder spraying head 222 stops spraying only when it reaches the position of the right end face of the steel pipe 001 to be processed, which will neither cause material waste nor ensure that each powder spraying head 222 can complete spraying on the steel pipe 001 to be processed from left to right, and the spraying effect is good.

[0055] It should be understood that after the traveling mechanism 210 moves from left to right to the right side of the steel pipe 001 to be processed, the traveling mechanism 210 can move in the reverse direction, thereby driving the powder spraying head 222 and the control unit 2231 to move from right to left relative to the steel pipe 001 to be processed together. When each powder spraying head 222 reaches the right end face of the steel pipe 001 to be processed, the corresponding induction switch 223 just receives the signal emitted by the second positioning transmitter 2233, and the corresponding powder spraying head 222 is controlled to open through the controller. Each powder spraying head 222 can start the spraying operation only when it moves to the right end face of the steel pipe 001 to be processed. When all the powder spraying heads 222 have passed the right end face of the steel pipe 001 to be processed, all the control units 2231 have also passed the second positioning transmitter 2233, and all the powder spraying heads 222 are opened. When the traveling mechanism 210 continues to move from right to left, when each powder spraying head 222 reaches the left end face of the steel pipe 001 to be processed, the corresponding control unit 2231 receives the signal emitted by the first positioning transmitter 2232, and the controller controls the corresponding powder spraying head 222 to close according to this signal. In this way, each powder spraying head 222 can spray the steel pipe 001 to be processed comprehensively from right to left, and can be closed after leaving the left end face of the steel pipe 001 to be processed, which not only ensures the spraying quality but also saves the spraying cost.

[0056] It should be understood that through the cooperation of multiple control units 2231 with the first positioning transmitter 2232 and the second positioning transmitter 2233, independent control of each powder spraying head 222 can be achieved, the structure is simplified, and the cost is reduced. The traveling mechanism 210 drives the powder spraying head 222 to reciprocate relative to the steel pipe 001 to be processed, and spraying can be achieved during the reciprocating operation process, improving the operation efficiency.

[0057] In this embodiment, optionally, the supporting device 100 includes a base 110 and two supporting units 120. Each supporting unit 120 includes a support 121 and two driving components 122 installed on the support 121. The support 121 is installed on the base 110, and the two supports 121 are arranged at intervals, and the distance between them is determined according to the length of the steel pipe 001 to be processed; the two driving components 122 of the same supporting unit 120 are used to cooperate to carry the steel pipe 001 to be processed and can drive the steel pipe 001 to rotate.

[0058] Designed in this way, the two supporting units 120 cooperate to carry the steel pipe 001 to be processed, and the position of the steel pipe 001 to be processed is stable. During the powder spraying process, the steel pipe 001 to be processed is not easily tilted or displaced, and it is not easy to affect the powder spraying quality. At the same time, when the two supporting units 120 support the steel pipe 001 to be processed, they can also drive the steel pipe 001 to rotate. When the powder spraying head 222 sprays powder onto the steel pipe surface, as the steel pipe 001 to be processed rotates, the powder can be evenly distributed on the circumferential surface of the steel pipe 001 to be processed.

[0059] Optionally, the driving assembly 122 includes a motor 1221 and a driving roller 1222. The motor 1221 is fixed to the support 121. The driving rollers 1222 of the two driving assemblies 122 of the same support unit 120 are arranged in parallel at intervals. The driving roller 1222 is fixed to the output shaft of the motor 1221. The four driving rollers 1222 cooperate to carry the steel pipe 001 to be processed. Driven by the motor 1221, the driving roller 1222 rotates, and can drive the steel pipe 001 to be processed to rotate by friction. By adjusting the rotation speed of the driving roller 1222, the rotation speed of the steel pipe 001 to be processed can be adaptively adjusted, and the rotation speed of the steel pipe 001 to be processed is convenient to control.

[0060] In this embodiment, optionally, the support device 100 further includes a collecting member 300. The collecting member 300 is installed on the support 121 and is used to receive the materials falling from the steel pipe 001 to be processed.

[0061] It should be understood that during the powder spraying process, some powder materials leave the surface of the steel pipe 001 to be processed and can fall into the collecting member 300, which is not easy to scatter everywhere, not easy to affect the environmental hygiene, and the collected powder materials can be reused, improving the resource utilization rate. The collecting member 300 can be provided with a collecting groove, and a drain hole can be provided at the bottom of the collecting groove. The cleaning groove is cleaned regularly, and the drain hole can drain the cleaning liquid.

[0062] Optionally, the collecting member 300 is movably connected to the support 121. The collecting member 300 can be slidably matched with the support 121. When the amount of powder materials collected in the collecting member 300 meets the threshold, the collecting member 300 can be operated to leave the support 121, which is convenient for cleaning the collecting member 300.

[0063] In this embodiment, optionally, the powder spraying angles of the plurality of powder spraying heads 222 are set to be the same. The assembly of the plurality of powder spraying heads 222 is convenient and fast.

[0064] In this embodiment, optionally, the traveling mechanism 210 can travel on the track 400. The track 400 is used to guide the movement direction of the traveling mechanism 210, ensuring that the traveling mechanism 210 drives the powder spraying mechanism to reciprocate relative to the steel pipe 001 to be processed on the set route, and the powder spraying effect is good.

[0065] For the epoxy powder spraying equipment provided in this embodiment, by independently controlling the operation state of each powder spraying head 222, the powder spraying head 222 will only be started for powder spraying when the traveling mechanism 210 drives the powder spraying head 222 to move to the left end face or the right end face position of the steel pipe 001 to be processed, reducing material waste, improving the resource utilization rate, and reducing the cost of the powder spraying operation.

[0066] This embodiment also provides a steel pipe processing production line, including the above-mentioned epoxy powder spraying equipment, which at least has the advantage of saving materials.

[0067] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An epoxy powder spraying equipment, characterized in that: include: A support device (100) and a spraying device (200), wherein the support device (100) is used to support and drive a steel pipe (001) to be processed to rotate around its own axis; the spraying device (200) comprises a walking mechanism (210) and a spraying mechanism (220), wherein the spraying mechanism (220) comprises a bracket (221), a plurality of powder spraying heads (222) and an induction switch (223); the bracket (221) is mounted on the walking mechanism (210), and the plurality of powder spraying heads (222) are mounted on the bracket (221) and arranged at intervals in a preset direction; the walking mechanism (210) is used to reciprocate the support device (100) in the preset direction, so that the plurality of powder spraying heads (222) pass through the steel pipe (001) to be processed in sequence in the axial direction of the steel pipe (001) to be processed; The induction switch (223) cooperates with the plurality of powder spraying heads (222), and the induction switch (223) is used to independently control the start and stop of each of the powder spraying heads (222).

2. The epoxy powder spraying equipment according to claim 1, characterized in that: The induction switch (223) comprises a plurality of control units, and the plurality of control units are respectively matched with the plurality of powder spray heads (222) in a one-to-one correspondence, and each of the control units is used to control the start and stop of the corresponding powder spray head.

3. The epoxy powder spraying equipment according to claim 2, characterized in that: The spraying device (200) further comprises a first positioning transmitter (2232) and a second positioning transmitter (2233); the plurality of control units (2231) are all mounted on the bracket (221) and arranged in a preset direction; the first positioning transmitter (2232) and the second positioning transmitter (2233) are arranged at intervals in the preset direction, and each of the control units (2231) is used to receive signals sent by the first positioning transmitter (2232) and the second positioning transmitter (2233); When the walking mechanism drives the bracket to reciprocate relative to the supporting device, each control unit (2231) first controls the corresponding powder spray head (222) to turn on when it receives a signal from one of the first positioning transmitter (2232) and the second positioning transmitter (2233), and controls the corresponding powder spray head (222) to turn off when the control unit (2231) receives a signal from the other of the first positioning transmitter (2232) and the second positioning transmitter (2233) again.

4. The epoxy powder spraying equipment according to claim 3, characterized in that: The first positioning transmitter is installed at a position facing the first end face of the steel pipe to be processed in the vertical direction, and the second positioning transmitter is installed at a position facing the second end face of the steel pipe to be processed in the vertical direction, and the first end face and the second end face are arranged in the axial direction of the steel pipe to be processed; the multiple control units are respectively arranged one by one facing the multiple powder spray heads in the vertical direction.

5. The epoxy powder spraying equipment according to claim 1, characterized in that: The support device (100) comprises a base (110) and two support units (120), each of the support units (120) comprises a support (121) and two drive assemblies (122) mounted on the support (121), the support (121) is mounted on the base (110), and the two supports (121) are arranged at intervals; the two drive assemblies (122) of the same support unit (120) are used to cooperate in carrying the steel pipe (001) to be processed, and can drive the steel pipe (001) to be processed to rotate.

6. The epoxy powder spraying equipment according to claim 5, characterized in that: The driving assembly (122) comprises a motor (1221) and a driving roller (1222); the motor (1221) is fixed to the support (121); the driving roller (1222) is fixed to the output shaft of the motor (1221); and a plurality of driving rollers (1222) cooperate to support the steel pipe (001) to be processed.

7. The epoxy powder spraying equipment according to claim 5, characterized in that: The supporting device (100) further comprises a collecting member (300), wherein the collecting member (300) is mounted on the support (121) and is used to receive materials dropped from the steel pipe (001) to be processed.

8. The epoxy powder spraying equipment according to claim 7, characterized in that: The collecting member (300) is movably connected to the support (121).

9. The epoxy powder spraying equipment according to claim 1, characterized in that: The powder spraying angles of the plurality of powder spraying heads (222) are set to be the same.

10. A steel pipe processing production line, characterized in that: include: The epoxy powder spraying equipment according to any one of claims 1 to 9.

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