Device for spraying marks on outer surfaces of steel pipes based on parallel connection

By designing a parallel label injection device, the symmetrical structure and rolling bearings, screws and other components can be used to achieve simultaneous injection of the outer surface of two steel pipes, which solves the problem that existing devices cannot spray labels at the same time, improves work efficiency and reduces manufacturing costs.

CN222223767UActive Publication Date: 2024-12-24BAOTOU IRON & STEEL (GROUP) CO LTD
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Patent Information

Application Number
CN202420455566.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-07
Publication Date
2024-12-24
Estimated Expiration
2034-03-07

AI Technical Summary

Technical Problem

The existing steel pipe marking device cannot spray marking two steel pipes at the same time, resulting in low working efficiency and inability to match the mass production rhythm.

Method used

A parallel-connected marking device is designed, which uses symmetrical structure and rolling bearings, screws and other components to achieve simultaneous marking on the outer surfaces of two steel pipes, and realizes positioning and movement of the marking machine through the linkage between the bracket and the wheel.

Benefits of technology

The simultaneous spraying of the outer surfaces of two steel pipes is achieved, which improves the working efficiency, and the device is low in manufacturing cost and simple in operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for spraying marks on the outer surface of a steel pipe based on parallel connection, and belongs to the technical field of steel pipe mark spraying equipment. The device comprises two first supports, four second supports, four third supports, four fourth supports, two fifth supports, two sixth supports, two seventh supports, four supporting plates, four wheels, a bottom plate, two mark spraying machines, two axles and forty-eight screws. The device comprises 16 first rolling bearings, four second rolling bearings, 16 screw rods and 16 nuts, can realize the purpose of simultaneously spraying marks on the outer surfaces of two parts of two steel pipes, and has the characteristics of low manufacturing cost, simplicity in operation and high working efficiency.
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Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe marking equipment, and in particular relates to a device for marking the outer surface of a steel pipe based on a parallel connection. Background Art

[0002] At present, in the production field of seamless steel pipes, in order to facilitate the traceability of steel pipe products, it is usually necessary to spray the inner or outer surface of the steel pipe in the finishing workshop. The content of the spraying usually includes basic parameters such as factory mark, standard, specification, steel grade, grade, furnace number, batch number, pipe number, length and weight; however, most domestic companies still use manual template spraying or handheld spraying machines to complete it. The work efficiency of these two methods is relatively low, and the printing effect is not beautiful, which cannot match the batch production rhythm; although some large steel pipe companies have adopted automatic spraying devices, these automatic spraying devices can only spray a single steel pipe, and cannot spray two steel pipes at the same time.

[0003] For example: Patent document CN105365406 A discloses an automatic marking device for steel pipes, which mainly includes a base, a gantry, a column, a crossbeam, a motor, a fan, an air duct, a blower, a cantilever, a crossbar, a temperature sensor, a position sensor, a cylinder, a marking head, a controller, a bracket, a roller conveyor and a support frame. Since the position sensor and the temperature sensor are provided, the device can accurately control the marking position and can mark the outside and inside of the steel pipe, but the device cannot mark two steel pipes at the same time. Patent document CN 213565048 U discloses a marking typing device for hot-dip galvanized steel pipe production line, which mainly includes a conveyor, a belt, a sticky pipe clamp, a motor, a bracket, a photoelectric sensor, a host, a printing nozzle and a sponge glue. Since the conveyor uses a belt conveyor and a sticky pipe clamp in combination, the device can well position the steel pipe and is suitable for marking steel pipes on the production line, but the device cannot mark two steel pipes at the same time. Patent document CN218197576 U discloses a spray marking device for a hot-dip galvanized steel pipe production line, which mainly includes an operating table, a motor, a rotating block, a track, a tightening block, a protrusion, a bidirectional threaded rod, a knob, an operating frame, an electric push rod, a spray marking device, a spray marking head, a placement seat, a support column, a universal wheel, a fixed plate and a clamping block. Due to the combined use of the tightening block, the protrusion, the bidirectional threaded rod and the knob, the device has relatively good compatibility and can spray marking steel pipes of different specifications, but the device cannot spray marking two steel pipes at the same time. Utility Model Content

[0004] In order to overcome one or more problems existing in the prior art, the utility model provides a device for spraying marks on the outer surface of a steel pipe based on a parallel type. The utility model is designed based on a symmetrical structure. The use of the third bracket can realize the relative setting of the seventh bracket; the combined use of the sixth bracket and the second rolling bearing can realize the horizontal movement of the sixth bracket while the wheel and the axle roll along the seventh bracket; the use of screws can realize the linkage of the first bracket, the fifth bracket and the sixth bracket, and the linkage of the support plate and the fourth bracket; the combined use of the first bracket, the fourth bracket and the first rolling bearing can realize the swing of the second bracket; the combined use of the support plate and the fourth bracket can realize the positioning of the spray marking machine, and the use of two spray marking machines can realize the simultaneous spray marking of the outer surfaces of two parts of two steel pipes. Therefore, the working efficiency of the device of the utility model is relatively high.

[0005] The technical solution adopted by the utility model to solve its technical problem is as follows.

[0006] The device for spraying marking on the outer surface of a steel pipe based on parallel connection provided by the utility model comprises: two first brackets, four second brackets, four third brackets, four fourth brackets, two fifth brackets, two sixth brackets, two seventh brackets, four support plates, four wheels, a bottom plate, two spray marking machines, two axles, forty-eight screws, sixteen first rolling bearings, four second rolling bearings, sixteen screw rods and sixteen nuts;

[0007] The first bracket is composed of a first body and four first bosses connected together, the first body and the first bosses are both rectangular parallelepiped symmetrical structures, and the four first bosses are simultaneously located on the lower end surface of the first body; the first body is symmetrically provided with two groups of eight cylindrical first through holes, and the screws are penetrated through the first through holes; the left end surface of the first boss is provided with a cylindrical first groove, and the first rolling bearing is penetrated through the first groove; a cylindrical second through hole is provided at the axial position of the first groove, and the first bearing section of the second bracket is penetrated through the second through hole;

[0008] The second bracket is composed of two second bodies, a second boss and four first bearing segments, the second body and the second boss are both rectangular parallelepiped symmetrical structures, the second boss is located between the two second bodies, and the four first bearing segments are respectively located on the left and right end surfaces of the two second bodies; the first bearing segment is a cylindrical symmetrical structure, which is used to pass the first rolling bearing;

[0009] The third bracket is composed of a third body, a third boss and a fourth boss, the third body, the third boss and the fourth boss are all rectangular parallelepiped symmetrical structures, the third boss is located on the upper end surface of the third body, and the fourth boss is located on the upper end surface of the third boss; the third body is symmetrically provided with four cylindrical fifth through holes, and the screw is passed through the fifth through holes; the left end surface of the fourth boss is provided with a rectangular parallelepiped second groove, and the seventh bracket is passed through the second groove;

[0010] The fourth bracket is composed of a fourth body, two fifth bosses and two sixth bosses connected together, the fourth body, the fifth boss and the sixth boss are all rectangular parallelepiped symmetrical structures, the two fifth bosses are simultaneously located on the upper end surface of the fourth body, and the two sixth bosses are simultaneously located on the lower end surface of the fourth body; a cylindrical third groove is provided on the left end surface of the fifth boss, and the first rolling bearing is penetrated in the third groove; a cylindrical sixth through hole is provided at the axial position of the third groove, and the first bearing section of the second bracket is penetrated in the sixth through hole; the sixth boss is symmetrically provided with two first screw holes, and the screws are screwed in the first screw holes;

[0011] The fifth bracket is composed of a fifth body, two seventh bosses and two eighth bosses connected together. The fifth body, the seventh boss and the eighth boss are all rectangular parallelepiped symmetrical structures. The two seventh bosses are simultaneously located on the upper end surface of the fifth body, and the two eighth bosses are simultaneously located on the lower end surface of the fifth body; a rectangular parallelepiped through groove can be formed between the two seventh bosses, and the sixth body of the sixth bracket is penetrated in the through groove; the seventh boss is symmetrically provided with four cylindrical seventh through holes, and the screw is penetrated in the seventh through hole; the eighth boss is symmetrically provided with four second screw holes, and the screw is screwed in the second screw hole;

[0012] The sixth bracket is composed of a sixth body and two ninth bosses connected together, the sixth body and the ninth boss are both rectangular parallelepiped symmetrical structures, and the two ninth bosses are respectively located on the left and right end faces of the sixth body; the sixth body is symmetrically provided with four third screw holes, and the screws are screwed into the third screw holes; a cylindrical fourth groove is provided on the rear end face of the ninth boss, and the second rolling bearing is penetrated into the fourth groove; a cylindrical eighth through hole is provided at the axial position of the fourth groove, and the second bearing section of the axle is penetrated into the eighth through hole;

[0013] The seventh bracket is composed of an eighth body, an eleventh boss and a twelfth boss connected together, the eighth body, the eleventh boss and the twelfth boss are all rectangular parallelepiped symmetrical structures, the eleventh boss is located on the upper end surface of the eighth body, and the twelfth boss is located on the upper end surface of the eleventh boss;

[0014] The support plate is a rectangular parallelepiped symmetrical structure, a rectangular parallelepiped third through hole is opened in the middle of the support plate, and the thirteenth boss of the marking machine is penetrated in the third through hole; the support plate is symmetrically opened with four cylindrical fourth through holes, and the screws are penetrated in the fourth through holes;

[0015] The wheel is composed of a coaxial seventh body and a tenth boss connected together, the seventh body and the tenth boss are both cylindrical symmetrical structures, the tenth boss is located at the rear end surface of the seventh body; a cylindrical ninth through hole is opened at the axis position of the tenth boss, the connecting section of the axle is penetrated in the ninth through hole, and the ninth through hole also penetrates the seventh body;

[0016] The bottom plate is a rectangular parallelepiped symmetrical structure, and is symmetrically provided with four groups of sixteen cylindrical tenth through holes, and the screw rods are passed through the tenth through holes;

[0017] The marking machine is composed of a ninth body and two thirteenth bosses connected together. The ninth body and the thirteenth bosses are both rectangular parallelepiped symmetrical structures. The two thirteenth bosses are respectively located on the left and right end surfaces of the ninth body.

[0018] The axle is composed of a coaxial tenth body, two second bearing segments and two connecting segments; the tenth body, the second bearing segment and the connecting segment are all cylindrical symmetrical structures, the two second bearing segments are respectively located on the front and rear end surfaces of the tenth body, and the two connecting segments are respectively located on the front and rear end surfaces of the two second bearing segments; the second bearing segment is penetrated by the second rolling bearing, and the connecting segment is penetrated by the wheel.

[0019] In some embodiments, the nut is screwed onto the threaded end of the screw.

[0020] In some embodiments, the screw, the first rolling bearing, the second rolling bearing, the screw rod and the nut are all standard parts.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1) The device for spraying marking on the outer surface of a steel pipe based on parallel connection provided by the utility model comprises two first brackets, four second brackets, four third brackets, four fourth brackets, two fifth brackets, two sixth brackets, two seventh brackets, four support plates, four wheels, a bottom plate, two spray marking machines, two axles, forty-eight screws, sixteen first rolling bearings, four second rolling bearings, sixteen screw rods and sixteen nuts. Since the materials are common and convenient for processing and forming, the manufacturing cost of the device of the utility model is relatively low.

[0023] 2) When the utility model is used, initially the four second brackets are all in a horizontal setting, the two steel pipes are simultaneously set at a position directly opposite to the two fifth brackets, the four second brackets are simultaneously swung 90 degrees in the opposite direction, so that the four second brackets are all in an upright setting, and the two spray-painting machines are started to spray marks on the outer surfaces of the left ends of the two steel pipes at the same time; the four second brackets are simultaneously swung 90 degrees forwardly, so that the four second brackets are all in a horizontal setting, and the two axles are simultaneously rotated forwardly, the two fifth brackets are moved to other parts of the two steel pipes, the four second brackets are simultaneously swung 90 degrees in the opposite direction, and the two spray-painting machines are started to spray marks on the outer surfaces of other parts of the two steel pipes at the same time. Therefore, the operation of the device of the utility model is relatively simple.

[0024] 3) The utility model is designed based on a symmetrical structure. The use of the third bracket can realize the relative setting of the seventh bracket; the combined use of the sixth bracket and the second rolling bearing can realize the horizontal movement of the sixth bracket while the wheel and the axle roll along the seventh bracket; the use of screws can realize the linkage of the first bracket, the fifth bracket and the sixth bracket, and the linkage of the support plate and the fourth bracket; the combined use of the first bracket, the fourth bracket and the first rolling bearing can realize the swing of the second bracket; the combined use of the support plate and the fourth bracket can realize the positioning of the spray marking machine, and the use of two spray marking machines can realize the simultaneous spray marking of the outer surfaces of two parts of two steel pipes. Therefore, the working efficiency of the device of the utility model is relatively high.

[0025] The device for spraying marking on the outer surface of a steel pipe based on parallel connection provided by the utility model can achieve the purpose of spraying marking on the outer surfaces of two parts of two steel pipes at the same time. The device of the utility model has the characteristics of low manufacturing cost, simple operation and high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the main structure of the device for spraying marking on the outer surface of a steel pipe based on the parallel type of the utility model when the second bracket is arranged horizontally;

[0027] Figure 2 It is a left-side structural schematic diagram of the device for spraying marking on the outer surface of a steel pipe based on the parallel type of the utility model when the second bracket is horizontally arranged;

[0028] Figure 3 It is a schematic diagram of the main structure of the device for spraying markings on the outer surface of a steel pipe based on the parallel type of the utility model when the second bracket is erected;

[0029] Figure 4 It is a left-side structural schematic diagram of the device for spraying markings on the outer surface of a steel pipe based on the parallel type of the utility model when the second bracket is erected;

[0030] Figure 5 It is a schematic diagram of the top view of the structure of the device for spraying marking on the outer surface of a steel pipe based on the parallel type of the utility model when the second bracket is vertically arranged;

[0031] Figure 6 It is a partial front view structural schematic diagram of the device for spraying marking on the outer surface of a steel pipe based on the parallel type of the utility model;

[0032] Figure 7 This is a schematic diagram of the main structure of the first bracket of the utility model;

[0033] Figure 8 It is a left-side structural schematic diagram of the first bracket of the utility model;

[0034] Fig. 9 This is a schematic diagram of the main structure of the second bracket of the utility model;

[0035] Fig.10 It is a left-side structural schematic diagram of the second bracket of the utility model;

[0036] Fig.11 It is a left-side structural schematic diagram of the support plate of the utility model;

[0037] Fig.12 It is a left-side structural schematic diagram of the third bracket of the utility model;

[0038] Fig.13 It is a schematic diagram of the top view of the structure of the third bracket of the utility model;

[0039] Fig.14 This is a schematic diagram of the main structure of the fourth bracket of the utility model;

[0040] Fig.15 It is a left-side structural schematic diagram of the fourth bracket of the utility model;

[0041] Fig.16 This is a schematic diagram of the main structure of the fifth bracket of the utility model;

[0042] Fig.17 It is a left-side structural schematic diagram of the fifth bracket of the utility model;

[0043] Fig.18 This is a schematic diagram of the main structure of the sixth bracket of the utility model;

[0044] Fig.19 It is a schematic diagram of the top view of the sixth bracket of the utility model;

[0045] Fig. 20 This is a schematic diagram of the main structure of the wheel of the utility model;

[0046] Fig.21 It is a right side structural schematic diagram of the wheel of the utility model;

[0047] Fig. 22 This is a schematic diagram of the main structure of the seventh bracket of the utility model;

[0048] Fig.23 It is a left-side structural schematic diagram of the seventh bracket of the utility model;

[0049] Fig.24 It is a schematic diagram of the top view of the bottom plate of the utility model;

[0050] Fig.25 This is a schematic diagram of the main structure of the marking machine of the utility model;

[0051] Fig.26 It is a left-side structural schematic diagram of the axle of the utility model;

[0052] Fig. 27 It is a schematic diagram of the forward swing of the second bracket of the utility model;

[0053] Fig.28 It is a schematic diagram of the reverse swing of the second bracket of the utility model;

[0054] Fig.29 It is a schematic diagram of the forward rotation of the axle of the utility model;

[0055] Fig.30 It is a schematic diagram of the reverse rotation of the axle of the utility model.

[0056] Description of the reference numerals: 1-first bracket; 101-first body; 102-first boss; 103-first through hole; 104-first groove; 105-second through hole; 2-second bracket; 201-second body; 202-second boss; 203-first bearing section; 3-support plate; 301-third through hole; 302-fourth through hole; 4-third bracket; 401-third body; 402-third boss; 403-fourth boss; 404-fifth through hole; 405-second groove; 5-fourth bracket; 501-fourth body; 502-fifth boss; 503-sixth boss; 504-third groove; 505-sixth through hole; 506-first screw hole; 6-fifth bracket; 601-fifth body; 602-seventh boss; 603-eighth boss; 604 -through groove; 605-seventh through hole; 606-second screw hole; 7-sixth bracket; 701-sixth body; 702-ninth boss; 703-third screw hole; 704-fourth groove; 705-eighth through hole; 8-wheel; 801-seventh body; 802-tenth boss; 803-ninth through hole; 9-seventh bracket; 901-eighth body; 902-eleventh boss; 903-twelfth boss; 10-bottom plate; 1001-tenth through hole; 11-spraying machine; 1101-ninth body; 1102-thirteenth boss; 12-axle; 1201-tenth body; 1202-second bearing section; 1203-connecting section; 13-screw; a14-first rolling bearing; b14-second rolling bearing; 15-screw; 16-nut; 17-steel pipe. DETAILED DESCRIPTION

[0057] The content of the utility model is described in detail below through examples and drawings. The examples are only used to understand the utility model, but are not intended to limit the content of the utility model.

[0058] Combination Figures 1 to 6As shown, the utility model provides a device for spraying marking on the outer surface of a steel pipe based on parallel connection, which includes two first brackets 1, four second brackets 2, four third brackets 4, four fourth brackets 5, two fifth brackets 6, two sixth brackets 7, two seventh brackets 9, four support plates 3, four wheels 8, a bottom plate 10, two spray marking machines 11, two axles 12, forty-eight screws 13, sixteen first rolling bearings a14, four second rolling bearings b14, sixteen screws 15 and sixteen nuts 16; wherein the four third brackets 4 are arranged on the bottom plate 10 in pairs, and are connected by the sixteen screws The rod 15 is connected with the sixteen nuts 16; two seventh brackets 9 are inserted into the four second grooves 405 of the four third brackets 4, four wheels 8 are rolled on the two twelfth bosses 903 of the two seventh brackets 9, four connecting sections 1203 of the two axles 12 are inserted into the four ninth through holes 803 of the four wheels 8; four second rolling bearings b14 are inserted into the four second bearing sections 1202 of the two axles 12, and the four second rolling bearings b14 are inserted into the four fourth grooves 704 of the two sixth brackets 7; the two sixth brackets 7 The sixth body 701 is inserted into the two through grooves 604 of the two fifth brackets 6 and connected by the sixteen screws 13; the two first bodies 101 of the two first brackets 1 are arranged outside the four left and right end faces of the four eighth bosses 603 of the two fifth brackets 6, and connected by the sixteen screws 13; the eight first rolling bearings a14 are inserted into the eight first grooves 104 of the two first brackets 1, and the eight first bearing sections 203 of the four second brackets 2 are inserted into the eight first rolling bearings a14; the other eight first bearing sections 203 of the four second brackets 2 203 is inserted into the eight first rolling bearings a14, and the eight first rolling bearings a14 are inserted into the eight third grooves 504 of the four fourth brackets 5 arranged opposite to each other; the two ninth bodies 1101 of the two marking machines 11 are inserted between the eight sixth bosses 503 of the four fourth brackets 5, and the four thirteenth bosses 1102 of the two marking machines 11 are inserted into the four third through holes 301 of the four support plates 3; the four support plates 3 are arranged outside the left and right eight end faces of the eight sixth bosses 503 of the four fourth brackets 5, and are connected by the sixteen screws 13.

[0059] The assembly process of the device for spraying marking on the outer surface of a steel pipe based on parallel connection provided by the utility model is as follows:

[0060] Combination Figures 1 to 26As shown, firstly, four third brackets 4 are arranged on the bottom plate 10 in pairs, ensuring that the four second grooves 405 of the four third brackets 4 are arranged opposite to each other, and then two seventh brackets 9 are inserted into the four second grooves 405 of the four third brackets 4, and then the sixteen fifth through holes 404 of the four third brackets 4 and the sixteen tenth through holes 1001 of the bottom plate 10 are aligned, and then one screw rod 15 is inserted into each of the sixteen aligned through holes, and then one nut 16 is screwed onto each of the threaded ends of the sixteen screw rods 15, so that the two seventh brackets 9, the four third brackets 4 and the bottom plate 10 can be assembled;

[0061] Then, one second rolling bearing b14 is installed in each of the four fourth grooves 704 of the two sixth brackets 7, and then the two sixth brackets 7 are arranged relative to each other, and then the four second bearing sections 1202 of the two axles 12 are inserted into the four second rolling bearings b14, and then the four connecting sections 1203 of the two axles 12 are inserted into the four ninth through holes 803 of the four wheels 8, so that the two sixth brackets 7, the four second rolling bearings b14, the two axles 12 and the four wheels 8 can be assembled;

[0062] Then, the four wheels 8 are simultaneously arranged on the two twelfth bosses 903 of the two seventh brackets 9, and then the two through grooves 604 of the two fifth brackets 6 are sleeved outside the two sixth bodies 701 of the two sixth brackets 7, and the sixteen seventh through holes 605 of the two fifth brackets 6 and the eight third screw holes 703 of the two sixth brackets 7 are aligned, and then the sixteen screws 13 are passed through the sixteen seventh through holes 605 and screwed into the eight third screw holes 703, so that the two fifth brackets 6 and the two sixth brackets 7 can be assembled;

[0063] Then, one first rolling bearing a14 is installed in each of the eight first grooves 104 of the two first brackets 1, and then the two first brackets 1 are arranged relative to each other, and then the eight first bearing segments 203 of the four second brackets 2 are inserted into the eight first rolling bearings a14, so that the two first brackets 1, the eight first rolling bearings a14 and the four second brackets 2 can be assembled;

[0064] Then, one first rolling bearing a14 is installed in each of the eight third grooves 504 of the four fourth brackets 5, and then the four fourth brackets 5 are arranged relatively to each other, and then the other eight first bearing segments 203 of the four second brackets 2 are inserted into the eight first rolling bearings a14, so that the four fourth brackets 5, the other eight first rolling bearings a14 and the four second brackets 2 can be assembled;

[0065] Then, the two first bodies 101 of the two first brackets 1 are arranged outside the four left and right end surfaces of the four eighth bosses 603 of the two fifth brackets 6, and the sixteen first through holes 103 of the two first brackets 1 and the sixteen second screw holes 606 of the two fifth brackets 6 are aligned, and then the sixteen screws 13 are passed through the sixteen first through holes 103 and screwed into the sixteen second screw holes 606, so that the two first brackets 1 and the two fifth brackets 6 can be assembled;

[0066] Then, the two ninth bodies 1101 of the two marking machines 11 are inserted between the eight sixth bosses 503 of the four fourth brackets 5, and then the four thirteenth bosses 1102 of the two marking machines 11 are inserted into the four third through holes 301 of the four support plates 3, and the four support plates 3 are arranged outside the left and right eight end surfaces of the eight sixth bosses 503 of the four fourth brackets 5, and the sixteen fourth through holes 302 of the four support plates 3 and the sixteen first screw holes 506 of the four fourth brackets 5 are aligned, and then the sixteen screws 13 are passed through the sixteen fourth through holes 302 and screwed into the sixteen first screw holes 506. In this way, the whole set of equipment is assembled and can be put into use.

[0067] The setting principle of the swing direction of the second bracket of the device for spraying marking on the outer surface of a steel pipe based on parallel connection provided by the utility model is:

[0068] like Figure 2 and Figure 4 As shown, based on the left-side structural schematic diagram of the device of the utility model, for the convenience of description, the four second brackets 2 may be defined as ①, ②, ③ and ④ respectively; since the positions of the eight first bearing segments 203 of the four second brackets 2 located in the eight second through holes 105 of the two first brackets 1 are all fixed, the eight first bearing segments 203 are all swing axes, which may be defined as point O;

[0069] like Figure 4 As shown, it is assumed that the four second brackets 2 are initially in an upright position, and after simplification, Fig. 27As shown, ① and ② swing 90 degrees in the clockwise direction at the same time, and ③ and ④ swing 90 degrees in the counterclockwise direction at the same time, then the four second brackets 2 are all in a horizontal setting, and it may be appropriate to define this swing direction of the second bracket 2 as a positive direction;

[0070] like Figure 2 As shown, it is assumed that the four second brackets 2 are initially in a horizontal arrangement, and after simplification, Fig.28 As shown, ① and ② swing 90 degrees in the counterclockwise direction at the same time, and ③ and ④ swing 90 degrees in the clockwise direction at the same time, then the four second brackets 2 are all in an upright setting, and this swinging direction of the second bracket 2 may be defined as reverse.

[0071] The setting principle of the axle rotation direction of the device for spraying marking on the outer surface of a steel pipe based on parallel connection provided by the utility model is:

[0072] like Figure 1 and Figure 3 As shown, based on the main structural diagram of the device of the utility model, for the convenience of description, the two axles 12 may be defined as ⑤ and ⑥ respectively; the ⑤ and ⑥ rotate in the clockwise direction at the same time, and the four wheels 8 roll to the right at the same time. This rotation direction of the axle 12 may be defined as the positive direction. Fig.29 As shown; said ⑤ and said ⑥ rotate counterclockwise at the same time, then the four wheels 8 roll to the left at the same time, it may be appropriate to define the rotation direction of the axle 12 as the reverse direction, such as Fig.30 shown.

[0073] The utility model provides a method for using the device for spraying marking on the outer surface of a steel pipe based on parallel connection:

[0074] Step 1: Assume that the four second brackets 2 are initially arranged horizontally, and then the two steel pipes 17 are simultaneously arranged at positions facing the two fifth brackets 6. At this time, the two fifth brackets 6 are just located above the left ends of the two steel pipes 17. Figure 1 and Figure 2 As shown;

[0075] Step 2: Then, the four second brackets 2 are simultaneously swung 90 degrees in the opposite direction, so that the four second brackets 2 are all in an upright position. At this time, the two marking machines 11 are close to the outer surfaces of the two steel pipes 17, and then the two marking machines 11 are started. In this way, the outer surfaces of the left ends of the two steel pipes 17 can be marked at the same time. Figures 3 to 5 As shown;

[0076] Step 3: Then, simultaneously swing the four second brackets 2 forward 90 degrees so that the four second brackets 2 are all in a horizontal setting, and then simultaneously rotate the two axles 12 forward so that the four wheels 8 roll to the right at the same time, and then move the two fifth brackets 6 to other parts of the two steel pipes 17, and then repeat the operation of step 2. In this way, the outer surfaces of other parts of the two steel pipes 17 can be sprayed at the same time.

[0077] Supplementary explanation: The device for spraying marking on the outer surface of a steel pipe based on parallel type provided by the utility model is designed with a symmetrical structure. First, according to the outer diameter specification of the steel pipe, the spacing between two steel pipes, the setting height of the steel pipe and the fixed length of the steel pipe, multiple specifications of the device of the utility model should be designed and manufactured to match it.

[0078] It can be seen from the embodiments that the device for spraying marking on the outer surface of a steel pipe based on a parallel type provided by the utility model can achieve the purpose of simultaneously spraying marking on the outer surfaces of two parts of two steel pipes. The device of the utility model has the characteristics of low manufacturing cost, simple operation and high working efficiency.

[0079] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein.

Claims

1. A device for spraying marking on the outer surface of a steel pipe based on parallel connection, characterized in that: The device for spraying marking the outer surface of a steel pipe based on parallel connection comprises: two first brackets (1), four second brackets (2), four third brackets (4), four fourth brackets (5), two fifth brackets (6), two sixth brackets (7), two seventh brackets (9), four support plates (3), four wheels (8), a bottom plate (10), two spray marking machines (11), two axles (12), forty-eight screws (13), sixteen first rolling bearings (a14), four second rolling bearings (b14), sixteen screw rods (15) and sixteen nuts (16), wherein: The first bracket (1) is composed of a first body (101) and four first bosses (102) connected together, the first body (101) and the first bosses (102) are both rectangular parallelepiped symmetrical structures, and the four first bosses (102) are simultaneously located on the lower end surface of the first body (101); the first body (101) is symmetrically provided with two groups of eight cylindrical first through holes (103), and the screws (13) are inserted into the first through holes (103); the left end surface of the first boss (102) is provided with a cylindrical first groove (104), and the first rolling bearing (a14) is inserted into the first groove (104); the first groove (104) is provided with a cylindrical second through hole (105) at an axial position, and the second through hole (105) is provided with a first bearing section (203) of the second bracket (2); The second bracket (2) is composed of two second bodies (201), a second boss (202) and four first bearing sections (203) connected together; the second body (201) and the second boss (202) are both rectangular parallelepiped symmetrical structures; the second boss (202) is located between the two second bodies (201); the four first bearing sections (203) are respectively located on the left and right end surfaces of the two second bodies (201); the first bearing section (203) is a cylindrical symmetrical structure, and is used for passing the first rolling bearing (a14); The third bracket (4) is composed of a third body (401), a third boss (402) and a fourth boss (403) connected together; the third body (401), the third boss (402) and the fourth boss (403) are all rectangular parallelepiped symmetrical structures; the third boss (402) is located on the upper end surface of the third body (401), and the fourth boss (403) is located on the upper end surface of the third boss (402); the third body (401) is symmetrically provided with four cylindrical fifth through holes (404), and the screw rod (15) is passed through the fifth through holes (404); the left end surface of the fourth boss (403) is provided with a rectangular parallelepiped second groove (405), and the seventh bracket (9) is passed through the second groove (405); The fourth bracket (5) is composed of a fourth body (501), two fifth bosses (502) and two sixth bosses (503) connected together; the fourth body (501), the fifth boss (502) and the sixth boss (503) are all rectangular parallelepiped symmetrical structures; the two fifth bosses (502) are simultaneously located on the upper end surface of the fourth body (501); the two sixth bosses (503) are simultaneously located on the lower end surface of the fourth body (501); the left end of the fifth boss (502) is A cylindrical third groove (504) is provided on the surface, and the first rolling bearing (a14) is inserted into the third groove (504); a cylindrical sixth through hole (505) is provided at the axial position of the third groove (504), and the first bearing section (203) of the second bracket (2) is inserted into the sixth through hole (505); the sixth boss (503) is symmetrically provided with two first screw holes (506), and the screw (13) is screwed into the first screw hole (506); The fifth bracket (6) is composed of a fifth body (601), two seventh bosses (602) and two eighth bosses (603) connected together; the fifth body (601), the seventh boss (602) and the eighth boss (603) are all rectangular parallelepiped symmetrical structures; the two seventh bosses (602) are simultaneously located on the upper end surface of the fifth body (601); the two eighth bosses (603) are simultaneously located on the lower end surface of the fifth body (601); the two seventh bosses (602) can form a rectangular parallelepiped through groove (604), and the sixth body (701) of the sixth bracket (7) is penetrated in the through groove (604); the seventh boss (602) is symmetrically provided with four cylindrical seventh through holes (605), and the screws (13) are penetrated in the seventh through holes (605); the eighth boss (603) is symmetrically provided with four second screw holes (606), and the screws (13) are screwed in the second screw holes (606); The sixth bracket (7) is composed of a sixth body (701) and two ninth bosses (702) connected together. The sixth body (701) and the ninth boss (702) are both rectangular parallelepiped symmetrical structures. The two ninth bosses (702) are respectively located on the left and right end faces of the sixth body (701); the sixth body (701) is symmetrically provided with four third screw holes (703), and the screws (13) are screwed into the third screw holes (703); the rear end face of the ninth boss (702) is provided with a cylindrical fourth groove (704), and the second rolling bearing (b14) is penetrated into the fourth groove (704); the axis position of the fourth groove (704) is provided with a cylindrical eighth through hole (705), and the second bearing section (1202) of the axle (12) is penetrated into the eighth through hole (705); The seventh bracket (9) is composed of an eighth body (901), an eleventh boss (902) and a twelfth boss (903) connected together, the eighth body (901), the eleventh boss (902) and the twelfth boss (903) are all rectangular parallelepiped symmetrical structures, the eleventh boss (902) is located on the upper end surface of the eighth body (901), and the twelfth boss (903) is located on the upper end surface of the eleventh boss (902); The support plate (3) is a rectangular parallelepiped symmetrical structure, a third rectangular through hole (301) is provided in the middle of the support plate (3), and a thirteenth boss (1102) of the marking machine (11) is inserted into the third through hole (301); the support plate (3) is symmetrically provided with four cylindrical fourth through holes (302), and the screws (13) are inserted into the fourth through holes (302); The wheel (8) is composed of a coaxial seventh body (801) and a tenth boss (802), the seventh body (801) and the tenth boss (802) are both cylindrical symmetrical structures, and the tenth boss (802) is located at the rear end surface of the seventh body (801); a cylindrical ninth through hole (803) is opened at the axial position of the tenth boss (802), and a connecting section (1203) of the axle (12) is penetrated in the ninth through hole (803), and the ninth through hole (803) also runs through the seventh body (801); The bottom plate (10) is a rectangular parallelepiped symmetrical structure, and the bottom plate (10) is symmetrically provided with four groups of sixteen cylindrical tenth through holes (1001), and the screw rod (15) is passed through the tenth through hole (1001); The marking machine (11) is composed of a ninth body (1101) and two thirteenth bosses (1102) connected together, the ninth body (1101) and the thirteenth bosses (1102) are both rectangular parallelepiped symmetrical structures, and the two thirteenth bosses (1102) are respectively located on the left and right end surfaces of the ninth body (1101); The axle (12) is composed of a coaxial tenth body (1201), two second bearing segments (1202) and two connecting segments (1203); the tenth body (1201), the second bearing segment (1202) and the connecting segment (1203) are all cylindrical symmetrical structures, the two second bearing segments (1202) are respectively located on the front and rear end surfaces of the tenth body (1201), and the two connecting segments (1203) are respectively located on the front and rear end surfaces of the two second bearing segments (1202); the second bearing segment (1202) is penetrated by the second rolling bearing (b14), and the connecting segment (1203) is penetrated by the wheel (8).

2. The device for spraying marking on the outer surface of a steel pipe based on parallel connection according to claim 1 is characterized in that: The threaded end of the screw rod (15) is screwed with the nut (16).

3. The device for spraying marking on the outer surface of a steel pipe based on parallel connection according to claim 1 or 2, characterized in that: The screw (13), the first rolling bearing (a14), the second rolling bearing (b14), the screw rod (15) and the nut (16) are all standard parts.