Steel pipe spraying equipment

Abstract

The utility model discloses a steel pipe spraying device which is characterized by comprising a machine frame (1), a driving mechanism (2) used for driving a steel pipe (N) to rotate, an inside and outside spraying mechanism (3) and a feeding mechanism (4) used for driving the inside and outside spraying mechanism (3) to move in the axial direction of the steel pipe (N). Wherein the inside and outside spraying mechanism (3) comprises a spraying frame (3-1), an inner nozzle (3-2) and an outer nozzle (3-3); the spraying frame (3-1) is provided with an external rod (3-11) and an internal rod (3-12); the external rods (3-11) and the internal rods (3-12) are distributed in parallel at intervals; the inner nozzle (3-2) is arranged at the end part of the built-in rod (3-12); and the outer nozzle (3-3) is arranged at the end part of the external rod (3-11). The inner wall and the outer wall of the steel pipe can be sprayed at the same time, and production efficiency can be improved exponentially.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of steel pipe spraying equipment. BACKGROUND

[0002] Steel pipe spraying refers to the process of uniformly spraying paint or coating on the surface of steel pipe, forming a protective coating on the steel pipe by spraying paint to prevent corrosion, oxidation, wear and other damage, and steel pipe spraying is usually used to improve the weather resistance, corrosion resistance, aesthetics of steel pipe and meet the requirements of specific industries or applications.

[0003] In order to improve the corrosion and rust prevention performance, the inner and outer walls of the steel pipe need to be sprayed during rust prevention treatment, and the existing technology uses two processes to first spray the inner wall and then spray the outer wall, which has the problem of low spraying efficiency. SUMMARY

[0004] The utility model provides a kind of steel pipe spraying equipment to solve the problem of low spraying efficiency in prior art when spraying the inner and outer walls of steel pipe, which needs two processes to first spray the inner wall and then spray the outer wall.

[0005] To achieve the above purpose, the utility model provides a kind of steel pipe spraying equipment, characterized by comprising rack, driving mechanism for driving steel pipe rotation, inner and outer spraying mechanism and feeding mechanism for driving the inner and outer spraying mechanism to move axially along the steel pipe.

[0006] The inner and outer spraying mechanism includes spraying frame, inner nozzle and outer nozzle, the spraying frame has built-in rod and external rod, the built-in rod and external rod are parallel and spaced, and the inner nozzle is arranged at the end of the built-in rod; the outer nozzle is arranged at the end of the external rod.

[0007] The above-mentioned scheme is used in use, the driving mechanism is used to drive the steel pipe to rotate, and the feeding mechanism is used to drive the inner and outer spraying mechanism to move axially along the steel pipe. The built-in rod and external rod are located on the inner and outer sides of the steel pipe, respectively, and the inner nozzle and outer nozzle are used to spray the inner wall and outer wall of the steel pipe, respectively. When working, the steel pipe is in a rotating state under the drive of the driving mechanism, so that the inner nozzle and outer nozzle can spray the inner and outer walls of the rotating steel pipe in a circumferential direction. Since the feeding mechanism drives the inner and outer spraying mechanism to move axially along the steel pipe, the inner nozzle and outer nozzle move axially along the steel pipe, thereby realizing comprehensive inner and outer spraying of the steel pipe in the length direction of the steel pipe. Therefore, the technical scheme can realize comprehensive inner and outer spraying of the steel pipe, and the inner and outer spraying is performed simultaneously, which can reduce the spraying time by half. At the same time, the number of position switching and loading and unloading between different processes is reduced, the working intensity is reduced, and the production efficiency is greatly improved.

[0008] Therefore, the technical scheme solves the problem of low spraying efficiency in the prior art, which needs to spray the inner wall first and then the outer wall, needs two processes, sprays the workpiece twice, switches processes, and needs twice loading and unloading operations.

[0009] Preferably, the driving mechanism comprises a first motor, two driving wheels and two driven wheels; the two driving wheels are rotatably arranged on the rack; the two driven wheels are rotatably arranged on the rack; the two driving wheels rollably support one end of the steel pipe, and the two driven wheels rollably support the other end of the steel pipe; and the first motor is used for driving the driving wheels to rotate.

[0010] Further, the first motor output end is connected with the two driving wheels through a transmission assembly; the transmission assembly comprises a driving sprocket, a chain and two driven sprockets; the first motor output end is connected with the driving sprocket, the two driven sprockets are coaxially fixedly connected with the two driving wheels respectively; and the chain is connected with the driving sprocket and the two driven sprockets.

[0011] Preferably, the feeding mechanism comprises a guide rail, a screw rod, a feeding seat and a second motor; the guide rail is fixedly arranged on the rack; the screw rod is rotatably arranged on the rack; the guide rail is arranged in parallel with the screw rod; the second motor output end is connected with the screw rod; the feeding seat is slidably matched with the guide rail; the feeding seat is threadedly matched with the screw rod; and the spraying frame is fixedly connected with the feeding seat.

[0012] Preferably, left and right supports are arranged on the rack; the two driving wheels are rotatably mounted on the left support; and the two driven wheels are rotatably mounted on the right support.

[0013] Further, the right support is slidably matched with the rack through a slide rail; a third motor and a gear are further mounted on the right support; a rack is fixedly arranged on the rack, the third motor output end is connected with the gear, the gear is meshingly connected with the rack, and the rack is parallel to the slide rail.

[0014] Further, the built-in rod and the external rod adopt telescopic rods.

[0015] The utility model discloses the beneficial effect:

[0016] First, the utility model can realize the comprehensive spraying treatment to the steel pipe, and the inner and outer spraying are simultaneously carried out, so that the spraying time can be reduced by half, the position switching and the loading and unloading times of the workpiece between different processes are reduced, the working intensity is reduced, and the production efficiency can be greatly improved.

[0017] Second, the utility model discloses a first motor output through transmission assembly and two driving wheels are connected, and since chain drive cannot slip and can provide high driving torque, the two driving wheels can drive heavy steel pipe to rotate stably for a long time.

[0018] Third, the utility model discloses that the distance between right support and left support can be adjusted before spraying paint, and then the position distance between two driving wheels and two driven wheels is adjusted, and the length of the steel pipe to be sprayed can be large or small, and the optimal distance after adjustment can meet the technical requirements of spraying the inside and outside of the steel pipe of different lengths, and production is more flexible.

[0019] Fourth, the utility model discloses that the built-in rod and the external rod can be adjusted to the matching length according to the length change of the steel pipe, and the length of the built-in rod and the external rod can be reasonably adjusted according to the length requirement of the steel pipe, so that the internal nozzle and the external nozzle can meet the length requirement of work, and the multifunctional production requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view of the steel pipe spraying equipment in the utility model when spraying inside and outside.

[0021] Figure 2 It is the perspective view of the steel pipe spraying equipment in the utility model when spraying inside and outside.

[0022] Figure 3 It is Figure 2 the enlarged view of B.

[0023] Figure 4 It is Figure 2 the enlarged view of C.

[0024] Figure 5 It is the front view of the steel pipe spraying equipment in the utility model after spraying.

[0025] Figure 6 It is the front view of the steel pipe spraying equipment in the utility model when adjusting the distance between right support and left support.

[0026] Figure 7 It is Figure 6 the enlarged view of A.

[0027] Figure 8 It is the perspective view of the assembly relationship between right support, third motor, gear and two driven wheels. DETAILED DESCRIPTION

[0028] The utility model will be further described below in combination with the drawings and examples:

[0029] Example one: referring to Figures 1-2A steel pipe spraying device comprises a frame 1, a driving mechanism 2 for driving a steel pipe N to rotate, an inner-outer spraying mechanism 3, and a feeding mechanism 4 for driving the inner-outer spraying mechanism 3 to move axially along the steel pipe N.

[0030] Referring to Figures 1-2 , wherein the inner-outer spraying mechanism 3 comprises a spraying frame 3-1, an inner nozzle 3-2, and an outer nozzle 3-3, the spraying frame 3-1 has an inner rod 3-12 and an outer rod 3-11, the inner rod 3-12 and the outer rod 3-11 are distributed in parallel and at intervals, and the inner nozzle 3-2 is arranged at the end of the inner rod 3-12, and the outer nozzle 3-3 is arranged at the end of the outer rod 3-11.

[0031] Before use, the inner nozzle 3-2 and the outer nozzle 3-3 are connected with the pipeline of a spraying system (which comprises a pump, a liquid tank, and the like, and the prior art can be adopted, so that no further description is needed).

[0032] In this embodiment, referring to Figures 1-5 , in use, the driving mechanism 2 is used for driving the steel pipe N to rotate, and the feeding mechanism 4 is used for driving the inner-outer spraying mechanism 3 to move axially along the steel pipe N. In spraying, the inner rod 3-12 and the outer rod 3-11 can be located at the inner side and the outer side of the steel pipe N respectively, and the inner nozzle 3-2 and the outer nozzle 3-3 are used for spraying the inner wall and the outer wall of the steel pipe N respectively. In work, the steel pipe N is in a rotating state under the driving of the driving mechanism 2, so that the inner nozzle 3-2 and the outer nozzle 3-3 can spray the inner wall and the outer wall of the rotating steel pipe N circumferentially. Since the feeding mechanism 4 drives the inner-outer spraying mechanism 3 to move axially along the steel pipe N, the inner nozzle 3-2 and the outer nozzle 3-3 will move axially (i.e. in the length direction of the pipe) along the steel pipe N (which can be combined with Figure 1 and Figure 5 ), so that the steel pipe N can be fully sprayed in the length direction.

[0033] In this embodiment, specifically, the feeding mechanism 4 is used for driving the inner-outer spraying mechanism 3 to move axially along the steel pipe N to the right to reach a starting spraying position at the right end of the steel pipe (see Figure 1 ); then the spraying system is started to work, the driving mechanism 2 is driven to work to drive the steel pipe N to rotate, and the feeding mechanism 4 drives the inner-outer spraying mechanism 3 to move axially along the steel pipe N to the left and right; then the inner nozzle 3-2 and the outer nozzle 3-3 spray the inner wall and the outer wall of the rotating steel pipe (see Figure 2 ), while moving axially to the left, until the spraying is completed, at which time the inner nozzle 3-2 and the outer nozzle 3-3 on the inner-outer spraying mechanism 3 are far away from and exit the steel pipe N (seeFigure 5 The sprayed steel pipe N can be taken away.

[0034] Therefore, the embodiment solves the problem of low spraying efficiency in the prior art, which needs two processes, twice spraying, process switching, and twice loading and unloading operations when spraying the inner wall and the outer wall of a steel pipe.

[0035] In the embodiment, referring to Figures 1-3 The driving mechanism 2 comprises a first motor 2-1, two driving wheels 2-2, and two driven wheels 2-3. The two driving wheels 2-2 are rotatably arranged on the rack 1. The two driven wheels 2-3 are rotatably arranged on the rack 1. The two driving wheels 2-2 rollably support one end of the steel pipe N (see Figures 2-3 ). The two driven wheels 2-3 rollably support the other end of the steel pipe N (see Figure 2 and Figure 8 ). The first motor 2-1 is used to drive the rotation of the driving wheels 2-2. When spraying, one end of the steel pipe N is placed on the two driving wheels 2-2 and is rollably supported, and the other end of the steel pipe N is placed on the two driven wheels 2-3 and is rollably supported. When the first motor 2-1 drives the rotation of the two driving wheels 2-2, the steel pipe N is driven to rotate at a fixed point by the two driving wheels 2-2.

[0036] Further, referring to Figure 3 The output end of the first motor 2-1 is connected with the two driving wheels 2-2 through a transmission assembly 2-4. The transmission assembly 2-4 comprises a driving sprocket 2-41, a chain 2-42, and two driven sprockets 2-43. The output end of the first motor 2-1 is coaxially fixedly connected with the driving sprocket 2-41. The two driven sprockets 2-43 are coaxially fixedly connected with the two driving wheels 2-2, respectively. The chain 2-42 is connected with the driving sprocket 2-41 and the two driven sprockets 2-43. In the embodiment, the first motor 2-1 drives the rotation of the driving sprocket 2-41 during work. The driving sprocket 2-41 drives the synchronous rotation of the two driven sprockets 2-43 through the chain 2-42. The two driven sprockets 2-43 drive the synchronous rotation of the two driving wheels 2-2, respectively, thereby driving the rotation of the steel pipe N. Since the chain transmission cannot slip and can provide high driving torque, the two driving wheels 2-2 can drive the heavy steel pipe N and keep long-term stable rotation.

[0037] In the embodiment, referring to Figure 2 and Figure 4The feeding mechanism 4 comprises a guide rail 4-1, a screw rod 4-2, a feeding seat 4-3 and a second motor 4-4; the guide rail 4-1 is fixedly arranged on the rack 1; the screw rod 4-2 is rotatably arranged on the rack 1; the guide rail 4-1 is arranged in parallel with the screw rod 4-2; the output end of the second motor 4-4 is connected with the screw rod 4-2; the feeding seat 4-3 is in sliding fit with the guide rail 4-1; the feeding seat 4-3 is in threaded fit with the screw rod 4-2; the spraying frame 3-1 is fixedly connected with the feeding seat 4-3.

[0038] When the feeding mechanism 4 works, the second motor 4-4 drives the screw rod 4-2 to rotate, the screw rod 4-2 drives the feeding seat 4-3 to slide along the guide rail 4-1 (see Figure 4 ), and further drives the spraying frame 3-1 to move, and the guide rail 4-1 and the screw rod 4-2 are axially parallel with the steel pipe N, and the inner nozzle 3-2 and the outer nozzle 3-3 on the spraying frame 3-1 can move along the axial direction of the steel pipe N. Since the second motor 4-4 can rotate forward and reversely, the moving direction (left or right) of the spraying frame 3-1 can be controlled respectively, and the reciprocating motion can be realized.

[0039] Embodiment two: this embodiment is further improved on the basis of embodiment one:

[0040] And since the length of the steel pipe N varies in use, in order to meet the requirements of internal and external spraying of different steel pipes.

[0041] Please refer to Figures 6-8 Further, the rack 1 is provided with a left support 1-1 and a right support 1-2; the two driving wheels 2-2 are rotatably mounted on the left support 1-1; the two driven wheels 2-3 are rotatably mounted on the right support 1-2.

[0042] Further, the right support 1-2 is in slidable fit with the rack 1 through a slide rail 1-3; a third motor 1-4 and a gear 1-5 are further mounted on the right support 1-2; the rack 1 is fixedly provided with a rack 1-6, the output end of the third motor 1-4 is connected with the gear 1-5, the gear 1-5 is in meshing connection with the rack 1-6, and the rack 1-6 is parallel with the slide rail 1-3. Specifically, the slide rail 1-3 is parallel with the center line of the steel pipe N.

[0043] The distance between the right support 1-2 and the left support 1-1 can be adjusted before painting, and then the position distance between the two driving wheels 2-2 and the two driven wheels 2-3 is adjusted.

[0044] Specifically, please refer to Figures 6-8During adjustment, the third motor 1-4 is started to drive the gear 1-5 to rotate, and the gear 1-5 moves in coordination with the rack 1-6. Since the rack 1-6 on the frame 1 is fixed, the right support 1-2 will move along the slide rail 1-3 (to the left or right), thereby causing the right support 1-2 to approach or move away from the left support 1-1.

[0045] Specifically, the slide rail 1-3 is fixed on the frame 1, and the bottom of the right support 1-2 is provided with a slide groove 1-21 for sliding cooperation with the slide rail 1-3 (see Figures 7-8 ).

[0046] Specifically, compared Figure 6 and Figure 1 It can be seen that in Figure 6 In the middle working state, the right support 1-2 is displaced close to the left support 1-1, which can reduce the distance and then be suitable for spraying inside and outside the shorter steel pipe.

[0047] Since the third motor 1-4 can rotate forward and reverse to drive the gear 1-5 to rotate in different directions, the right support 1-2 can move in different directions along the slide rail 1-3 to increase or decrease the distance between the right support 1-2 and the left support 1-1.

[0048] Example 3: This example is based on Example 1 or 2 and is further improved:

[0049] In order to avoid the problem of mismatch between the lengths of the internal rod 3-12 and the external rod 3-11 due to the change in the length of the steel pipe N, it is impossible to achieve the requirement that the entire pipe length can be sprayed.

[0050] Furthermore, the inner rod 3-12 and the outer rod 3-11 are telescopic rods. In this way, the lengths of the inner rod 3-12 and the outer rod 3-11 can be adjusted according to the length of the steel pipe N, so that the inner nozzle 3-2 and the outer nozzle 3-3 can meet the working length requirements.

[0051] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A steel pipe spraying apparatus characterized by comprising: The utility model relates to a steel pipe spraying device, including frame (1), drive mechanism (2) for driving steel pipe (N) rotation, inside and outside spraying mechanism (3) and feed mechanism (4) for driving inside and outside spraying mechanism (3) along steel pipe (N) axial movement; Wherein, inside and outside spraying mechanism (3) include spraying frame (3-1), inner nozzle (3-2) and outer nozzle (3-3), spraying frame (3-1) has outer pole (3-11) and built-in rod (3-12), outer pole (3-11) and built-in rod (3-12) parallel interval distribution, inner nozzle (3-2) is arranged at built-in rod (3-12) end;Outer nozzle (3-3) is arranged at outer pole (3-11) end.

2. A steel pipe spraying apparatus as claimed in claim 1, wherein: Drive mechanism (2) includes first motor (2-1), two driving wheels (2-2) and two driven wheels (2-3), two driving wheels (2-2) rotatably arranged on frame (1), two driven wheels (2-3) rotatably arranged on frame (1), two driving wheels (2-2) roll support steel pipe (N) one end, two driven wheels (2-3) roll support steel pipe (N) the other end, first motor (2-1) is used for driving driving wheel (2-2) rotation.

3. A steel pipe spraying apparatus as claimed in claim 2, wherein: The output end of the first motor (2-1) is connected with the two driving wheels (2-2) through a transmission assembly (2-4); the transmission assembly includes a driving sprocket (2-41), a chain (2-42) and two driven sprockets (2-43); the output end of the first motor (2-1) is connected with the driving sprocket (2-41), and the two driven sprockets (2-43) are coaxially fixedly connected with the two driving wheels (2-2) respectively; the chain (2-42) is connected with the driving sprocket (2-41) and the two driven sprockets (2-43).

4. A steel pipe spraying apparatus as claimed in claim 1, wherein: The feed mechanism (4) includes a guide rail (4-1), a lead screw (4-2), a feed seat (4-3), and a second motor (4-4); the guide rail (4-1) is fixedly arranged on the frame (1); the lead screw (4-2) is rotatably arranged on the frame (1); the guide rail (4-1) and the lead screw (4-2) are arranged in parallel; the output end of the second motor (4-4) is connected with the lead screw (4-2); the feed seat (4-3) is slidingly matched with the guide rail (4-1); the feed seat (4-3) is threadedly matched with the lead screw (4-2); the spraying frame (3-1) is fixedly connected with the feed seat (4-3).

5. A steel pipe spraying apparatus as claimed in claim 2, wherein: The frame (1) is provided with a left support (1-1) and a right support (1-2); the two driving wheels (2-2) are rotatably mounted on the left support (1-1); the two driven wheels (2-3) are rotatably mounted on the right support (1-2).

6. A steel pipe spraying apparatus as claimed in claim 5, wherein: The right support (1-2) is slidably matched with the frame (1) through a slide rail (1-3); The right support (1-2) is further provided with a third motor (1-4) and a gear (1-5); the rack (1-6) is fixed to the frame (1), the output end of the third motor (1-4) is connected with the gear (1-5), the gear (1-5) is connected with the rack (1-6) in a meshing mode, and the rack (1-6) is parallel to the slide rail (1-3).

7. A steel pipe spraying apparatus as claimed in claim 1, wherein: The external rod (3-11) and the internal rod (3-12) are telescopic rods.

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