Small-size pipeline ruling machine

Abstract

The utility model discloses a small-size pipeline ruling machine. The small-size pipeline ruling machine comprises a profile frame, a spray gun installation frame, a plurality of spray guns, a lead screw, a starting handle and an electromagnetic valve. The pipeline ruling machine is small in overall size and portable, the starting handle is arranged on the profile frame, on one hand, starting and stopping of the spray guns are controlled through the starting handle, on the other hand, by holding the starting handle, an operator can conveniently hold the device and push the trolley to slide forwards, and overall operation is simpler and more convenient. Meanwhile, a plurality of containing barrels are arranged on the profile frame, so that a material barrel and a compressed air source can be conveniently placed, the situation that a pipeline is too long and becomes disordered is avoided, and the situation that in the operation process, the pipeline is pressed by other objects, consequently, the pipeline is blocked, and marking failure is caused is also avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface spraying treatment technical field, concretely relates to a small -size pipeline scribing machine. BACKGROUND

[0002] Scribing machine is generally applied to road marking, and the common road scribing machine is shaped like a trolley, including frame, engine, air compressor, bucket and spray gun, through pushing the scribing machine trolley, the spray gun at the lower end of the trolley sprays material body, thereby marking.

[0003] The existing road scribing machine is generally relatively large in size, so in some special scenarios, such as on the outer surface of a pipeline, it is difficult to work.

[0004] In the field of pipelines, the existing scribing machine needs to be structurally modified. At present, the customized modified pipeline scribing machine is still relatively large in size, which is inconvenient to use and easy to crush the pipeline, causing local deformation of the pipeline. Moreover, it cannot be universal, that is, when marking different sizes of pipelines, one device is difficult to adapt to pipelines of various sizes. UTILITY MODEL CONTENT

[0005] The utility model provides a small -size, portable pipeline scribing device.

[0006] The utility model adopts the technical scheme to solve the technical problems:

[0007] A small -size pipeline scribing machine, including: sectional frame, spray gun mounting bracket, a plurality of spray guns, lead screw, starting handle and electromagnetic valve;

[0008] The sectional frame is used as the overall framework structure of the device, and is a cuboid frame, including the bottom section bar arranged at the bottom of the frame and arranged left and right, the top section bar arranged at the top of the frame and arranged front and back, and the plurality of vertical columns arranged between the bottom section bar and the top section bar and arranged vertically;The plurality of vertical columns are fixed on the upper end of the bottom section bar, the upper end of the plurality of vertical columns is slidably connected with the top section bar through a sliding block, the lower end of the top section bar is shaped with the sliding block, and a sliding rail for sliding of the sliding block is regularly arranged, and the vertical column slides on the lower end of the top section bar through the sliding block and the sliding rail;

[0009] The bottom profile, column, and slider at the top of the column on the left side of the frame together form the left movable base frame. The bottom profile, column, and slider at the top of the column on the right side of the frame together form the right movable base frame. The left and right movable base frames are arranged in parallel. The left and right movable base frames slide at the lower end of the top profile through the cooperation of the slider and the slide rail to adjust the distance between the left and right movable base frames.

[0010] The left movable base and the right movable base are connected together by a column connecting plate and a column connecting plate tightening knob. The column connecting plates are arranged horizontally on the left and right sides of the front and rear ends of the left and right movable bases to form front and rear column connecting plates.

[0011] The column connecting plate is regularly provided with horizontal strip holes. The screw at the front end of the column connecting plate tension knob passes through the horizontal strip holes and the column from the outside of the column connecting plate, and engages with the threaded hole on the column or with the locking nut located behind the column to adjust the tightness between the column connecting plate and the column.

[0012] The outer side of the slider is regularly provided with a slider locking knob for locking and releasing the slider. The screw at the front end of the slider locking knob engages with the threaded hole on the slider to lock it in place. The pressure block at the rear end of the slider locking knob engages with the slider to clamp the top profile.

[0013] The profile frame also includes a top crossbeam spanning the top profile on both the front and rear sides; the spray gun mounting bracket is suspended below the top crossbeam via an adapter and a screw.

[0014] The spray gun mounting bracket includes a horizontally arranged base plate, and mounting arms for mounting the plurality of spray guns are respectively provided on the front and rear sides of the base plate, forming front and rear mounting arms; horizontal sliding holes are arranged horizontally and left and right on the front and rear mounting arms, and the plurality of spray guns are mounted on the front and rear mounting arms by spray gun tightening bolts. The screw of the spray gun tightening bolt passes through the horizontal sliding hole on the mounting arm and locks with the spray gun, thereby fixing the spray gun on the mounting arm. The distance between the plurality of spray guns can be adjusted by the cooperation of the spray gun tightening bolts.

[0015] The start handle is mounted at the rear end of the profile frame and is used for holding and pushing the device;

[0016] The electromagnetic valve is regularly arranged on the profile frame, is communicated with the plurality of spray guns, the material barrels and the compressed air source through pipelines, and is electrically connected with the starting handle through a line, so that the starting handle controls the on-off of the electromagnetic valve, and the starting and stopping of the plurality of spray guns are controlled.

[0017] The lower end of the profile frame is regularly provided with a plurality of wheels for sliding.

[0018] Further, the upright column is regularly provided with an inwardly recessed upright column connecting plate clamping groove at the position of the upright column connecting plate, the upright column connecting plate is clamped in the upright column connecting plate clamping groove, and the upright column slides left and right on the upright column connecting plate through the upright column connecting plate clamping groove, so as to avoid position deviation of the left and right two upright columns.

[0019] Further, the starting handle is installed and fixed on the rear end of the top cross beam through an L-shaped adapter plate and fasteners.

[0020] Further, the lead screw includes a lead screw rod and a lead screw nut, the lead screw nut is installed and fixed on the top cross beam, and the lead screw rod is fixedly connected with the spray gun mounting bracket in sequence through the lead screw nut, the top cross beam and the spray gun mounting bracket, so that the spray gun mounting bracket slides up and down through the lead screw rod.

[0021] Further, the upper end of the lead screw rod is regularly provided with a knob, and the lead screw rod is driven to rotate through the knob; or the lead screw rod is driven to rotate through a servo motor.

[0022] Further, the adapter frame is arranged downward and erected on the top cross beam, forms a top panel at the top end of the top cross beam, forms left and right side panels at the left and right sides of the top cross beam, and the left and right side panels of the adapter frame are regularly provided with sliding grooves.

[0023] The bottom plate of the spray gun mounting bracket is vertically provided with a sliding plate upward relative to the sliding grooves on the left and right side panels of the adapter frame, the spray gun mounting bracket is inserted into the sliding grooves on the adapter frame through the sliding plate, and stably slides in the sliding grooves.

[0024] Further, the adapter frame is a U-shaped adapter frame, and a U-shaped opening faces and is arranged on the upper end of the top cross beam.

[0025] Further, the bottom profile is regularly arranged and installed with a containing barrel for containing the material barrels and the compressed air source, and the containing barrel is arranged away from the lower side of the spray gun mounting bracket.

[0026] This invention achieves versatility for pipe marking devices through an adjustable left-right spacing profile frame. By adjusting the left-right spacing of the profile frame, it can accommodate pipes of different diameters for marking. Simultaneously, by regularly arranged strip-shaped sliding holes on the spray gun mounting bracket, and by using locking bolts to engage with these holes, several spray guns can be flexibly mounted on the bracket. This allows for convenient and flexible adjustment of the spacing between the spray guns, thereby adjusting the marking distance.

[0027] This utility model of pipe marking machine is small and portable. By setting a start handle on the profile frame, the operator can control the start and stop of several spray guns. By holding the start handle, the operator can easily hold the device and push the trolley forward, making the overall operation simpler and more convenient.

[0028] This invention features multiple holding containers on a profile frame, facilitating the placement of material containers and compressed air sources. This avoids excessively long and tangled pipelines, and also prevents blockages caused by other objects pressing on the pipelines during operation, which could lead to marking failures. Furthermore, it enhances the portability of the entire device. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 for Figure 1 A three-dimensional diagram of a mechanism from a opposing perspective;

[0031] Figure 3 for Figure 1 A 3D structural diagram of the middle section modules;

[0032] Figure 4 for Figure 1 The front view;

[0033] Figure 5 for Figure 1 The left view;

[0034] The diagram is marked as follows:

[0035] 1. Profile frame; 11. Bottom profile; 12. L-shaped connecting plate; 13. Column; 14. Slider; 15. Top profile; 16. Top crossbeam; 17. Column connecting plate; 18. Column connecting plate tension knob; 19. Slider tension knob; 110. Wheel; 111. Wheel frame; 1101. Mounting hole; 1301. Column connecting plate slot; 1501. Slide rail; 1701. Horizontal strip hole;

[0036] 21、adapter, 2101、slotted guide;

[0037] 22、spray gun mounting bracket, 2201、mounting bracket base plate, 2202、mounting arm, 2203、sliding hole, 2204、sliding plate;

[0038] 3、spray gun, 31、spray gun locking bolt;

[0039] 4、screw rod, 41、screw rod screw, 42、screw rod nut, 43、fixed nut, 4401、screw rod knob;

[0040] 5、start handle, 51、L-shaped adapter plate;

[0041] 6、solenoid valve;

[0042] 7、holding bucket. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. Therefore, the specific embodiments disclosed below are not intended to limit the scope of the present application, but merely to illustrate exemplary embodiments of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0045] As Figures 1-5As shown, the utility model discloses a small -size pipeline marking machine, including sectional frame 1, spray gun mounting bracket 22, a plurality of spray guns 3, lead screw 4, starting handle 5 and electromagnetic valve 6. Among them, a plurality of spray guns 3 regular installation is in spray gun mounting bracket 22, and through spray gun locking bolt 31 cooperation in spray gun mounting bracket 22 left and right slide, to adjust the interval between a plurality of spray guns, to adjust the interval of marking. Spray gun mounting bracket 22 is connected with sectional frame 1 through adapter bracket 21, and the height of spray gun is adjusted through lead screw 4. Starting handle 5 regular installation is in sectional frame 1, is used for the hand of portable pipeline marking device of the utility model on one hand, and is used for controlling the start and stop of a plurality of spray guns 3 on the other hand. Electromagnetic valve 6 regular installation is fixed in sectional frame 1, is communicated with a plurality of spray guns 3, bucket and compressed gas source through pipeline, and is electrically connected with starting handle 5 through line, to control the on-off of electromagnetic valve through starting handle 5, to control the work of spray gun 3, to control the spray work of material body, and the material body is sprayed on the outer surface of pipeline.

[0046] Further, as shown in Figure 1 And Figure 2 The lower end of sectional frame 1 is regularly provided with a plurality of wheels 110. The portable pipeline marking device of the utility model smoothly slides on the pipeline through the plurality of wheels 110, thereby marking the outer surface of the pipeline.

[0047] As shown in Figure 1 The left side is the front side of the device, the right side is the rear side of the device, the front side is the left side of the device, and the rear side is the right side of the device. That is, the starting handle 5 is regularly arranged on the rear side of the device, thereby facilitating the operator to hold the device and push the trolley forward. The following description is based on the direction under this perspective.

[0048] Further, as shown in Figure 1 The sectional frame 1 serves as the overall framework structure of the device, is a rectangular frame, includes a bottom section 11 regularly arranged on the bottom of the frame and horizontally parallel arranged left and right, a top section 15 regularly arranged on the top of the frame and horizontally parallel arranged front and back, and a plurality of vertical columns 13 regularly arranged between the bottom section 11 and the top section 15 and vertically arranged. Therefore, in this embodiment, the sectional frame 1 includes a pair of bottom sections 11 arranged in parallel left and right, a pair of top sections 15 arranged in parallel front and back, and a plurality of vertical columns 13 arranged between the pair of bottom sections 11 and the pair of top sections 15.

[0049] Further, the wheel 110 is arranged and installed on the lower end of the bottom section 11 through the wheel frame 111. In an embodiment, the wheel 110 and the wheel frame 111 are provided with four groups, respectively installed on the front and rear lower ends of the bottom sections 11 on the left and right sides.

[0050] Further, several vertical columns 13 are vertically arranged at the four corners of the bottom profile 11 and the top profile 15, forming four corner vertical columns.

[0051] Further, the left and right bottom profiles 11 and the vertical columns 13 are fixedly connected together through the L-shaped connecting plates 12 and fasteners, and the vertical columns 13 are vertically fixed at the front and rear ends of the bottom profile 11.

[0052] Further, several vertical columns 13 are slidably connected together with the top profile 15 through the sliding blocks 14 fixed at the top ends of the vertical columns 13. Correspondingly, the lower end of the top profile 15 is regularly provided with a sliding rail 1501 for facilitating the sliding of the sliding block 14. The sliding block 14 is embedded in the sliding rail 1501 and stably slides in the sliding rail 1501. The vertical columns 13 slide at the lower end of the top profile 15 through the cooperation of the sliding block 14 and the sliding rail 1501, so as to adjust the distance between the left and right bottom profiles 11 to adapt to different sizes of the pipeline.

[0053] Further, as shown in Figure 1 , the left bottom profile, the vertical columns 13 at the front and rear ends thereof, and the sliding blocks 14 at the upper ends of the vertical columns together form a left moving chassis, and the right bottom profile, the vertical columns at the front and rear ends thereof, and the sliding blocks at the upper ends of the vertical columns together form a right moving chassis. The left moving chassis and the right moving chassis stably slide in the sliding blocks 1501 at the lower end of the front and rear top profiles 15 through the sliding blocks 14 at the upper ends of the vertical columns.

[0054] As shown in Figure 1 , Figure 2 and Figure 4 , in order to realize the positioning and fixing of the left moving chassis and the right moving chassis, the left and right vertical columns at the front end of the device and the left and right vertical columns at the rear end of the device are regularly provided with vertical column connecting plates 17 and vertical column connecting plate loose knobs 18. The vertical column connecting plate 17 is regularly provided with horizontal strip holes 1701, and the screw rods at the front end of the vertical column connecting plate loose knob 18 pass through the horizontal strip holes 1701 and the vertical columns 13 from the outside of the vertical column connecting plate 17 in sequence, and cooperate with the threaded holes on the vertical columns 13 or the locking nuts arranged at the rear side of the vertical columns to adjust the tightness between the vertical column connecting plate 17 and the vertical columns 13. By tightening the vertical column connecting plate loose knob 18, the vertical column connecting plate 17 and the vertical columns 13 are locked and fixed, so as to fix the distance between the left moving chassis and the right moving chassis; by loosening the vertical column connecting plate loose knob 18, the vertical column connecting plate 17 and the vertical columns 13 are released, so as to facilitate the adjustment of the distance between the left moving chassis and the right moving chassis.

[0055] In the utility model, the distance between the left and right two bottom section bars 11 is conveniently and quickly adjusted by the column connecting plate 17, the column connecting plate tension knob 18 and the locking nut or the threaded hole, so that the width of the pipeline marking machine is adjusted.

[0056] Further, in order to avoid the position deviation of the column connected with the column connecting plate, the column 13 is regularly provided with a column connecting plate clamping groove 1301 which is inwardly recessed at the position of the horizontally arranged column connecting plate 17, and the column connecting plate 17 is clamped in the column connecting plate clamping groove 1301. The column slides left and right on the column connecting plate 17 through the column connecting plate clamping groove 1301, so that the position deviation of the left and right columns can be avoided, and the accuracy and stability of the distance between the left and right bottom section bars are ensured.

[0057] Further, because the column 13 slides in the slide rail 1501 at the lower end of the top section bar 15 through the sliding block 14, in order to lock the sliding block 14, the left and right two movable chassis are fixed at the lower end of the top section bar 15. The outer side of the sliding block 14 is regularly provided with a sliding block locking knob 19. The screw rod at the front end of the sliding block locking knob 19 cooperates with the threaded hole on the sliding block 14, and the pressing block at the rear end of the sliding block locking knob 19 cooperates with the sliding block 14 to form a clamping groove for clamping the top section bar 15. The tightness between the sliding block locking knob 19 and the top section bar 15 is quickly adjusted by rotating the sliding block locking knob 19. The pressing block at the rear end of the sliding block locking knob 19 cooperates with the sliding block 14 to clamp the top section bar 15 by tightening the sliding block locking knob 19, so that the positioning and fixing of the sliding block 14 are realized; the top section bar 15 is released by loosening the sliding block locking knob 19, so that the sliding block 14 is released, and the sliding block 14 is conveniently slid in the slide rail 1501 to adjust the distance between the left and right two bottom section bars.

[0058] As shown in Figure 1 The section bar frame 1 further comprises a top cross beam 16 which is horizontally arranged on the top section bar 15 at the front and rear sides, and the top cross beam 16 is used for mounting and arranging a plurality of spray guns 3 and a starting handle 5. The starting handle 5 is fixed at the rear end of the top cross beam 16 through an L-shaped adapter plate 51 and a fastener, so that the user can conveniently hold the starting handle 5 and extract and push the portable pipeline marking device of the utility model through the starting handle 5.

[0059] Further, as shown in Figure 1 and Figure 3 The spray gun mounting rack 22 is hung below the top cross beam 16 through the adapter rack 21, that is, the plurality of spray guns 3 are arranged and mounted in the interior of the section bar frame 1 through the spray gun mounting rack 22 and the adapter rack 21. The spray gun mounting rack 22 is slidably connected with the adapter rack 21 through the lead screw 4.

[0060] Further, as shown in Figure 3As shown, the adapter frame 21 is a U-shaped adapter frame, the U-shaped opening is arranged downward, and is erected on the top beam 16, so as to form a top panel at the top end of the top beam and left and right side panels at the left and right sides of the top beam 16.

[0061] Further, the spray gun mounting frame 22 comprises a horizontally arranged bottom plate 2201, and the front and rear sides of the bottom plate 2201 are respectively provided with mounting arms 2202 for mounting the spray guns 3, thereby forming front and rear mounting arms.

[0062] Further, the front and rear mounting arms 2202 are respectively provided with horizontal sliding holes 2203, and the plurality of spray guns 3 are arranged outside the mounting arms 2202 and are locked and fixed on the mounting arms 2202 by penetrating the horizontal sliding holes 2203 from the inside of the mounting arms 2202 through the spray gun locking bolts 31 and cooperating with the fixing threaded holes on the spray guns 3. When the spray gun locking bolts 31 are loosened, the spray guns 3 can be released from the mounting arms 2202, and the plurality of spray guns 3 can be adjusted in the left and right positions by sliding the screw rods at the front ends of the spray gun locking bolts 31 in the horizontal sliding holes 2203, so as to adjust the positions and intervals of the lines.

[0063] Further, as shown in the drawings, Figure 3 in an embodiment, one spray gun is mounted on each of the front and rear mounting arms 2201, and a total of two spray guns are provided, so that two lines can be drawn. Of course, in other embodiments, more than two spray guns can be mounted, so that more lines can be drawn.

[0064] Further, as shown in the drawings, Figure 3 the lead screw 4 comprises a lead screw rod 41 and a lead screw nut 42. The lead screw nut 42 is fixed on the top panel of the adapter frame 21, and the lead screw rod 41 penetrates the lead screw nut 42, the adapter frame 21 and the top beam 16 in sequence and is locked with a fixing nut 43 arranged at the upper end of the bottom plate 2201 of the spray gun mounting frame. The rotation of the lead screw rod 41 is converted into linear motion by cooperating with the lead screw nut 42, so as to drive the spray gun mounting frame 22 to slide up and down.

[0065] Further, as shown in the drawings, Figure 3 in an embodiment, a lead screw knob 4401 is regularly arranged at the upper end of the lead screw rod 41, so that the rotation of the lead screw knob 4401 drives the rotation of the lead screw rod 41, thereby manually adjusting the up and down positions of the spray gun mounting frame 22. Of course, in another embodiment, a servo motor driving device is mounted at the upper end of the lead screw rod 41 through a motor mounting frame, and the servo motor drives the rotation of the lead screw rod 41, thereby realizing the automatic adjustment of the spray gun mounting frame 22.

[0066] Further, in order to improve the stability of the spray gun mounting rack 22 sliding up and down, the outer side of the left and right side panels of the adapter rack 21 is regularly provided with a sliding groove 2101. Correspondingly, the left and right sides of the spray gun mounting rack 22 on the bottom plate 2201 are provided with a sliding plate 2204 upward. The spray gun mounting rack 22 is inserted into the sliding groove 2101 through the sliding plate 2204 and stably slides in the sliding groove 2101, so as to improve the stability of the spray gun mounting rack 22 sliding up and down. Avoiding the shaking of the spray gun mounting rack 22 during use, causing the curved line to be drawn, even the breakpoint appears.

[0067] Further, as shown in Figure 1 The left and right bottom profiles 11 are regularly provided with a plurality of mounting holes 1101, and the upper end is regularly arranged and mounted with a containing barrel 7 for containing the material barrel and compressed gas source. The material barrel containing the spray coating barrel and the compressed gas tank are placed into the containing barrel 7, which can facilitate the arrangement and installation of the material barrel and the gas tank.

[0068] Further, the containing barrel 7 is arranged away from the lower side of the spray gun mounting rack 22, and is arranged on the left and right outer sides below the spray gun mounting rack 22, so as to avoid affecting the moving range of the plurality of spray guns 3.

[0069] Further, the outer side of the wheel 110 is wrapped with a rubber wheel, so as to avoid scratching the pipeline.

[0070] Further, as shown in Figure 3 The spray gun 3 preferably adopts a nano spray gun, which sprays the coating through compressed gas.

[0071] Further, as shown in Figure 1 The profile frame 1 can also be reasonably installed with a portable code jet according to the actual use scene, so as to perform code jet processing after drawing lines on the surface of the pipeline.

[0072] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A small volume pipe marking machine characterized by: The profile frame, the spray gun mounting rack, the plurality of spray guns, the screw rod, the starting handle and the electromagnetic valve; The profile frame is used as the overall framework of the device, is a cuboid frame, and comprises bottom profiles arranged on the bottom of the frame and arranged left and right, top profiles arranged on the top of the frame and arranged front and back, and a plurality of vertical columns arranged vertically between the bottom profiles and the top profiles; the plurality of vertical columns are fixed on the upper end of the bottom profiles, the upper end of the plurality of vertical columns is connected to the top profiles through a sliding block, and the lower end of the top profiles is shaped as the sliding block and regularly provided with sliding rails for the sliding block to slide; the vertical columns slide on the lower end of the top profiles through the sliding block and the sliding rails; The bottom profile, the vertical column and the sliding block on the upper end of the vertical column on the left side of the frame together form a left moving chassis, the bottom profile, the vertical column and the sliding block on the upper end of the vertical column on the right side of the frame together form a right moving chassis, the left moving chassis and the right moving chassis are arranged in parallel left and right, and the left moving chassis and the right moving chassis slide on the lower end of the top profiles through the sliding block and the sliding rails to adjust the distance between the left moving chassis and the right moving chassis; The left moving chassis and the right moving chassis are connected together through a vertical column connecting plate and a vertical column connecting plate tension knob, the vertical column connecting plate is arranged on the front and back ends of the left moving chassis and the right moving chassis in a left and right transverse arrangement, and forms front and back vertical column connecting plates; The vertical column connecting plate is regularly provided with horizontal strip holes, a screw rod at the front end of the vertical column connecting plate tension knob passes through the horizontal strip holes and the vertical column from the outside of the vertical column connecting plate in sequence, and is matched with a threaded hole on the vertical column or a locking nut arranged behind the vertical column to adjust the tightness between the vertical column connecting plate and the vertical column; The outside of the sliding block is regularly provided with a sliding block locking knob for locking and releasing the sliding block, a screw rod at the front end of the sliding block locking knob is matched with a threaded hole on the sliding block for locking, and a pressing block at the rear end of the sliding block locking knob is matched with the sliding block to clamp the top profile; The profile frame further comprises a top cross beam horizontally arranged on the upper end of the top profiles on the front and back two sides; the spray gun mounting rack is hung below the top cross beam through an adapter and a screw rod; The spray gun mounting rack comprises a bottom plate arranged horizontally, mounting arms for mounting the plurality of spray guns are arranged on the front and back two sides of the bottom plate respectively, and front and back mounting arms are formed; horizontal sliding holes are arranged horizontally and arranged left and right on the front and back mounting arms, the plurality of spray guns are arranged on the front and back mounting arms through spray gun tension bolts, screw rods of the spray gun tension bolts pass through the horizontal sliding holes on the mounting arms and are matched with the spray guns for locking, so that the spray guns are mounted and fixed on the mounting arms, and the distance between the plurality of spray guns is adjusted through the cooperation of the spray gun tension bolts; The starting handle is arranged and mounted on the rear end of the profile frame and is used for handheld and pushing of the device. The electromagnetic valve is regularly arranged on the profile frame, is communicated with the plurality of spray guns, the material barrels and the compressed air source through pipelines, and is electrically connected with the starting handle through a line, so that the starting handle controls the on-off of the electromagnetic valve, and the plurality of spray guns are controlled to start or stop. The lower end of the profile frame is regularly provided with a plurality of wheels for sliding.

2. A small volume pipe marking machine according to claim 1, characterized in that: The upright column is regularly provided with an inwardly recessed upright column connecting plate clamping groove at the position of the upright column connecting plate, the upright column connecting plate is clamped in the upright column connecting plate clamping groove, and the upright column slides left and right on the upright column connecting plate through the upright column connecting plate clamping groove, so as to avoid position deviation of the left and right upright columns.

3. A small footprint pipe marking machine according to claim 1, wherein: The starting handle is installed and fixed on the rear end of the top cross beam through an L-shaped adapter plate (51) and a fastener.

4. A small footprint pipe marking machine according to claim 1, wherein: The lead screw includes a lead screw rod and a lead screw nut, the lead screw nut is installed and fixed on the top cross beam, and the lead screw rod is fixedly connected with the spray gun mounting bracket in sequence through the lead screw nut, the top cross beam and the spray gun mounting bracket, so that the spray gun mounting bracket is driven to slide up and down through the lead screw rod.

5. A small volume pipe marking machine according to claim 4, wherein: The upper end of the lead screw rod is regularly provided with a knob, and the lead screw rod is driven to rotate through the knob; or the lead screw rod is driven to rotate through a servo motor.

6. A small footprint pipe marking machine as defined in claim 1, wherein: The adapter frame is arranged downward and erected on the top cross beam, forms a top panel at the top end of the top cross beam, forms left and right side panels at the left and right sides of the top cross beam, and the left and right side panels of the adapter frame are regularly provided with sliding grooves. The bottom plate of the spray gun mounting bracket is vertically and upwardly provided with a sliding plate with respect to the sliding grooves on the left and right side panels of the adapter frame, the spray gun mounting bracket is inserted into the sliding grooves on the adapter frame through the sliding plate, and stably slides in the sliding grooves.

7. A small footprint pipe marking machine according to claim 6, wherein: The adapter frame is a U-shaped adapter frame, and the U-shaped opening is arranged towards.

8. A small volume pipe marking machine according to any one of claims 1 to 7, wherein: The bottom profile is regularly provided with a containing barrel for containing the material barrels and the compressed air source, and the containing barrel is arranged away from the lower side of the spray gun mounting bracket.

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