Automatic production line for steel pipe processing

Abstract

The present invention discloses an automatic production line for steel pipe processing, which belongs to the field of steel pipe processing equipment, and comprises a feeding assembly, a forming assembly, a discharging assembly and a packaging assembly which are arranged in sequence, wherein the front end of the forming assembly is provided with a cleaning welding assembly, and the discharging assembly comprises a feeding rack and a discharging rack, wherein the feeding rack is arranged correspondingly to the discharge port of the forming assembly, a turning assembly is arranged between the feeding rack and the discharging rack, and an end of the discharging rack away from the feeding rack is arranged correspondingly to the packaging assembly. The present invention can improve the efficiency of the entire production of steel pipes, and can also improve the quality of products and the period of stable operation of the structure.

Description

Technical Field

[0001] The invention belongs to the field of steel pipe processing equipment and relates to an automatic production line for steel pipe processing. Background Art

[0002] Steel pipes are widely used in real life. They are not only used to transport fluids and powdered solids, exchange heat, and manufacture mechanical parts and containers. They are also an economical steel material. Using steel pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight and save 20-40% of metal. It can also realize factory-based mechanized construction. Using steel pipes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of ​​protective coating, saving investment and maintenance costs.

[0003] During the production and manufacturing process, steel pipes need to go through the processes of loading, forming, unloading and packaging. Steel pipes are made of steel strips. The steel strips are used as processing raw materials to complete the loading, and then the steel strips are processed and formed into steel pipes. Because the steel strips are heavy and easily produce greater friction with other products, it is necessary to reduce friction during the loading process to ensure smooth loading. The current common steel strip loading devices are prone to jamming, causing the steel strip production line to be interrupted, affecting production efficiency.

[0004] Steel pipes are formed by welding steel plates. There will be welds at the joints of the steel plates. The welds need to be processed and shaped in the molten state to ensure the beauty of the outer surface of the steel pipe and make the outer surface of the steel pipe smoother. At present, the treatment of welds is mainly for the treatment of outer surface welds. Due to the limitation of pipe diameter, many steel pipes are transferred to the production line and then processed separately, which increases the production cost, and each steel pipe needs to be repositioned and processed, which reduces the efficiency of the entire production line. In addition, the diameter of many steel pipes is not large enough, and specific telescopic tools need to be set to clean the internal welds to ensure the needs of subsequent actual production, which is inefficient.

[0005] During the unloading process, the formed steel pipes need to be transported to the designated location by express delivery for surface treatment and packaging to facilitate subsequent transportation and other work. During the transfer of the steel pipes, the steel pipes need to be turned over and the production line and the packaging part need to be isolated. Currently, the commonly used turning mechanisms are mostly driven by cylinders. When the air pressure is insufficient, the turning will not be smooth, which will cause the steel pipes to easily accumulate. Summary of the invention

[0006] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0007] In view of the problems existing in the above-mentioned background technology description, the present invention is proposed. Therefore, one of the objects of the present invention is to provide an automatic production line for steel pipe processing, which has high processing efficiency and good quality of products from loading, forming to unloading.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic production line for steel pipe processing, comprising a loading assembly, a forming assembly, a unloading assembly and a packaging assembly arranged in sequence, and a cleaning welding assembly is provided at the front end of the forming assembly;

[0009] The feeding assembly includes a protective shell, a cleaning assembly and a traction assembly, the protective shell is circular, the cleaning assembly is arranged at the outlet end of the protective shell, the traction assembly is arranged at one end of the cleaning assembly away from the cleaning assembly, the steel plate is arranged in the protective shell and one end passes through the cleaning assembly and enters the traction assembly, the protective shell is provided with multiple groups of guide wheels, each group of guide wheels includes two extrusion wheels arranged oppositely and the gap between the two is consistent with the thickness of the steel plate, each extrusion wheel is arranged tangent to the steel plate, the extrusion wheel is arranged on the support rod and the two are rotatably connected, and the support rod is fixed on a horizontal plane;

[0010] The cleaning assembly comprises brushes symmetrically arranged on both sides of the steel plate and arranged in contact with the steel plate, one end of the brush away from the steel plate is fixedly arranged on the top head, one end of the top head away from the brush is provided with a guide column, the diameter of the guide column is smaller than the diameter of the top head, the outer ring of the guide column is coaxially provided with a spring, the outer side of the guide column is provided with a guide shell, the guide shell is fixedly arranged, and the spring is arranged between the inner end surface of the guide shell and the top head and is in a compressed state;

[0011] The welding cleaning assembly comprises a fixing rod, one end of the upper end surface of the fixing rod is provided with a first insert, the first insert is embedded in one end of the fixing rod, two first supporting rollers are connected in the first insert, the two first supporting rollers are symmetrically arranged relative to the axis of the fixing rod, the upper end of the first supporting roller protrudes from the fixing rod, and the lower end surface of the fixing rod is provided with a second supporting roller;

[0012] A positioning bevel is provided on the upper end surface of the fixing rod near the first insert, and the positioning bevel is arranged obliquely downward from one end close to the first insert to the other end. A second insert is provided on the upper end surface of the positioning bevel and away from the first insert. The second insert is embedded in the fixing rod, and a positioning ring is provided on the second insert. The positioning ring is arranged perpendicular to the positioning bevel, and a coaxial annular cutter is arranged in the positioning ring. The upper end surface of the annular cutter protrudes from the upper end surface of the fixing rod, and a slag discharge through hole is arranged on the inner side of the annular cutter.

[0013] Furthermore, the number of the second support rollers is four and two are arranged in a group at both ends of the fixed rod respectively. The setting direction of the second support roller is the same as the setting direction of the first support roller. The material of the first support roller and the second support roller is the same and both are polyetheretherketone plus 30% carbon fiber.

[0014] Furthermore, the fixing rod includes a first fixing plate on an upper layer and a second fixing plate on a lower layer, the first fixing plate is fixedly locked to the second fixing plate by screws, a locking platform is provided at the lower end of the second fixing plate away from the first embedment, the locking platform is locked with the fixing device, the first fixing plate is made of stainless steel, and the second fixing plate is made of cast iron.

[0015] Furthermore, the traction assembly includes traction rollers symmetrically arranged on both sides of the steel belt, the number of traction rollers on each side is arranged in a 3X3 structure, each of the traction rollers is arranged tangentially to the steel belt, the traction rollers are arranged on the fixed frame and the two are rotatably connected, the traction rollers in the same row are all arranged on a rotating shaft, the rotating shaft is driven to rotate by a rotating motor, and the symmetrically arranged rotating shafts are driven to rotate through a meshing gear set.

[0016] Furthermore, the top head is a conical structure and has a smaller diameter at one end close to the brush, and the top head is arranged in contact with the inner ring of the guide shell.

[0017] Furthermore, the unloading assembly includes a loading rack and a unloading rack, the loading rack is arranged corresponding to the discharge port of the forming assembly, a flip assembly is provided between the loading rack and the discharge rack, and the unloading rack is arranged corresponding to the packaging assembly at one end away from the loading rack.

[0018] Furthermore, the flip assembly includes a fixed plate, one side of which is provided with a driving wheel, a driving rod, a limiting groove and a sliding block, the axis of the driving wheel is arranged perpendicular to the fixed plate, the driving wheel is rotatably connected to the fixed plate, one end of the driving rod is hinged on the driving wheel and is not arranged to coincide with the center of the driving wheel, the other end of the driving rod is hinged to one end of the sliding block, the other end of the sliding block is hinged to one end of the first connecting rod and one end of the second connecting rod, the sliding block is arranged in the limiting groove and the two are slidably connected;

[0019] One end of the first connecting rod away from the sliding block is hinged at the middle part of the first rotating arm, the lower end of the first rotating arm is hinged at the fixed plate, the upper end is hinged to one end of the first toggle arm, and the other end of the first toggle arm is in contact with the toggle wheel; one end of the second connecting rod away from the sliding block is hinged at the middle part of the second rotating arm, the lower end of the second rotating arm is hinged at the fixed plate, the upper end is hinged to one end of the second toggle arm, and the other end of the second toggle arm is in contact with the toggle wheel, and the first rotating arm and the second rotating arm are symmetrically arranged relative to the longitudinal center line of the fixed plate.

[0020] Furthermore, the toggle wheel is provided with a plurality of outwardly protruding positioning angles, the first toggle arm is arranged in contact with the inner side of one of the positioning angles, the second toggle arm is arranged in contact with the inner side of one of the positioning angles, and the angle between two adjacent positioning angles is the same as the intermittent rotation angle of the first toggle arm;

[0021] Furthermore, a shifting rod is provided at the upper end of the shifting wheel, and the shifting rod is horizontally arranged at one end away from the shifting wheel.

[0022] Furthermore, the limiting groove is in a U-shape with an opening facing outward, and a longitudinal center plane of the limiting groove is arranged to coincide with a longitudinal center plane of the sliding block.

[0023] The advantages and positive effects of the present invention are as follows: compared with the prior art, 1. the new type of the present application has improvements in the links of loading, cleaning of welds after forming, and material turning over during unloading, thereby ensuring stable loading of steel plates, realizing timely cleaning of internal welds after steel pipe forming, and ensuring stable transportation of steel pipes after unloading, greatly improving the efficiency of the entire steel pipe production line, and improving the quality of steel pipes, and extending the service life of the structure; 2. the loading component is provided with a cleaning component and a guide component, and the steel strip is guided after cleaning to complete loading, which can ensure the cleanliness of the steel strip surface and improve the quality of the steel pipe after forming; 3. after the brush is provided, impurities on the surface of the steel strip can be cleaned in time to prevent impurities from entering the formed steel pipe and causing trouble for subsequent cleaning. , and the brush can move with the top head under the action of the spring. When the brush is worn, the top head drives the brush to move in the direction of the steel belt to ensure close contact with the steel belt and improve the cleaning force; 4. Setting multiple sets of traction rollers can improve the traction force, and multiple traction rollers are driven by a rotating motor through a gear set to simultaneously drive multiple traction rollers to move, ensuring good synchronization, improving efficiency and stability; 5. The fixed rod in the welding cleaning assembly is set on the steel pipe production line. In the actual application process, it is set at the mouth of the steel pipe after preliminary forming. The annular cutter is set corresponding to the weld inside the steel pipe. The weld is cut off during the continuous advancement of the formed steel pipe. It is integrated with the steel pipe production line, which is convenient for transformation on the existing production line, and the transformation cost is low, replacing The previous setting of secondary processing after the steel pipe is off the line has been changed, and the subsequent packaging action can be carried out directly, which greatly improves the production efficiency; 6. The first support roller can support the front end of the steel pipe and guide the steel pipe at the same time. The second support roller is at the lower end of the inside, and has a certain supporting effect on the fixed rod. It supports at multiple points and has high stability; 7. The first embedded block, the second embedded block and the fixed block in the welding assembly are all detachably assembled and connected, which can reduce the processing cost, facilitate the installation of other parts and subsequent maintenance, and make the operation more convenient and quick; 8. The driving wheel and the sliding block are set on the flip Du Jian. The driving wheel rotates, and the sliding block is driven up and down by the eccentrically hinged driving rod, and then the first rotating arm and the second rotating arm are driven to move simultaneously through the first connecting rod and the second connecting rod. The first toggle arm and the second toggle arm are driven to rotate the toggle wheel, and finally the movement of the toggle rod is realized to complete the continuous flipping of the steel pipe with high efficiency. Moreover, the rotation of the driving wheel is driven by a servo motor instead of a cylinder, which avoids the hidden dangers of failure caused by unstable air pressure and improves stability. 9. The above coordination relationship can ensure that in the process of rising, the first toggle arm contacts the positioning angle on the toggle wheel to push the toggle wheel to rotate. In the process of descending, the second toggle arm continues to push the toggle wheel to rotate based on the positioning angle just formed with the first toggle arm, thereby realizing continuous operation between multiple toggle rods and quickly realizing the flipping of the steel pipe with higher efficiency. 10. The outer surface of the toggle rod is provided with a chrome-plated layer to improve the hardness of the outer surface of the toggle rod and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0025] Figure 1 It is a structural layout diagram of the automatic production line for steel pipe processing of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the feeding assembly of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the extrusion wheel and the steel belt in the present invention;

[0028] Figure 4 is a schematic diagram of the structure of the cleaning component of the present invention;

[0029] Figure 5 is a schematic structural diagram of a traction assembly of the present invention;

[0030] Figure 6 It is a structural layout diagram of the installation of the cleaning welding assembly of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the cleaning welding assembly of the present invention from a top view;

[0032] Figure 8 It is a schematic diagram of the structure of the solder cleaning assembly of the present invention when viewed from above;

[0033] Fig. 9 The present invention Figure 7 A magnified view of part A;

[0034] Fig.10 This is a top view of the structural layout of the material turning assembly of the present invention;

[0035] Fig.11 It is a structural layout diagram from the left side in the application of the material turning component of the present invention;

[0036] Fig.12 It is an axonometric view of the material turning assembly of the present invention;

[0037] Fig.13 It is a structural schematic diagram of the material turning assembly of the present invention when viewed from the right;

[0038] Fig.14 It is a structural schematic diagram of the toggle wheel of the present invention.

[0039] Reference numerals:

[0040] 10-feeding assembly; 20-feeding assembly; 30-welding assembly; 40-forming assembly; 50-packaging assembly; 11-protective shell; 111-guide wheel; 112-support rod; 113-extrusion wheel; 12-cleaning assembly; 121-brush; 122-top; 123-guide column; 124-spring; 125-guide shell; 13-traction assembly; 131-traction roller; 132-fixed frame; 1321-rotating shaft; 133-gear set; 134-rotating motor; 135-guide groove; 136-wear-resistant pad; 14-steel belt; 21-feeding rack; 211-first baffle plate; 22-discharging rack; 221-second baffle plate; 23-fixed plate; 231-limiting groove; 24-driving wheel; 241-servo motor; 25-driving rod; 251-sliding block; 26-first connecting rod; 26'-second connecting rod; 27-first rotating arm; 27'-second rotating arm; 28-first driving arm; 28'-second driving arm; 29-shifting rod; 291-guide protrusion; 292-chamfer; 293-shifting wheel; 2931-positioning angle; 31-fixing rod; 311-first fixing plate; 312-second fixing plate; 32-first insert; 33-first supporting roller; 34-second insert; 35-positioning ring; 36-annular cutter; 361-Chamfer; 362-slag discharge hole; 37-positioning slope; 38-second supporting roller; 39-locking table. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0044] Again, it should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0047] In order to make the objectives, technical solutions and advantages of the present invention more clear, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, the automatic production line for steel pipe processing includes a loading assembly 10, a forming assembly 40, a unloading assembly 20 and a packaging assembly 50 which are arranged in sequence, and a cleaning welding assembly 30 is provided at the front end of the forming assembly 40;

[0049] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the feeding assembly 10 includes a protective shell 11, a cleaning assembly 12 and a traction assembly 13. The protective shell 11 is circular, the cleaning assembly 12 is arranged at the outlet end of the protective shell 11, and the traction assembly 13 is arranged at one end of the cleaning assembly 12 away from the cleaning assembly 12. The steel plate is arranged in the protective shell 11 and one end enters the traction assembly 13 after passing through the cleaning assembly 12. The protective shell 11 is provided with multiple groups of guide wheels 111, each group of guide wheels 111 includes two extrusion wheels 113 arranged opposite to each other and the gap between the two is consistent with the thickness of the steel plate, each extrusion wheel 113 is arranged tangentially to the steel plate, the extrusion wheel 113 is arranged on the support rod 112 and the two are rotatably connected, and the support rod 112 is fixed on a horizontal plane. Preferably, an anti-corrosion layer is provided on the inner side of the protective shell 11 to avoid rust or other damage to the outer surface of the steel belt 14. The cleaned steel belt 14 enters the traction assembly 13 again, which can ensure the cleanliness of the steel belt 14.

[0050] The cleaning assembly 12 includes a brush 121 symmetrically arranged on both sides of the steel plate and in contact with the steel plate, one end of the brush 121 away from the steel plate is fixedly arranged on the top head 122, and one end of the top head 122 away from the brush 121 is provided with a guide column 123, the diameter of the guide column 123 is smaller than the diameter of the top head 122, the outer ring of the guide column 123 is coaxially provided with a spring 124, and the outer side of the guide column 123 is provided with a guide shell 125, the guide shell 125 is fixedly arranged, and the spring 124 is arranged between the inner end surface of the guide shell 125 and the top head 122 and is in a compressed state. After the brush 121 is arranged, impurities on the surface of the steel strip 14 can be cleaned in time to prevent impurities from entering the formed steel pipe and causing trouble for subsequent cleaning, and the brush 121 can move with the top head 122 under the action of the spring 124. When the brush 121 is worn, the top head 122 drives the brush 121 to move toward the steel strip 14 to ensure close contact with the steel strip 14 and enhance the cleaning strength.

[0051] Preferably, the extrusion wheel 113 is a linear bearing, which can withstand a large radial force and meet the load-bearing requirements when the steel belt 14 is in an expanded state.

[0052] Preferably, at the same position of the steel belt 14, a group of guide wheels 111 are respectively arranged at the upper end and the lower end, and multiple groups of guide wheels 111 are evenly distributed on the steel belt 14, which can guide different positions of the steel belt 14 and ensure that the steel belt 14 is transmitted according to the established design route.

[0053] Preferably, the plug 122 is a conical structure and has a smaller diameter at the end close to the brush 121. The plug 122 is arranged in contact with the inner circle of the guide shell 125. The guide shell 125 has a certain limiting effect on the plug 122, which can prevent the plug 122 from being ejected without restriction, causing excessive friction between the brush 121 and the steel belt 14, and affecting the traction of the traction roller 131.

[0054] Preferably, the traction assembly 13 includes traction rollers 131 symmetrically arranged on both sides of the steel belt 14, the number of traction rollers 131 on each side is arranged in a 3X3 structure, each traction roller 131 is arranged tangentially to the steel belt 14, the traction rollers 131 are arranged on a fixed frame 132 and the two are rotatably connected, the traction rollers 131 located in the same row are all arranged on a rotating shaft 1321, the rotating shaft 1321 is driven to rotate by a rotating motor 134, the symmetrically arranged rotating shafts 1321 are driven to rotate through a meshing gear set 133, and a plurality of traction rollers 131 are symmetrically arranged, which can increase the traction force and is suitable for traction of steel plates of different widths, and has a wide range of applications, and a rotating motor 134 is used to transmit and drive the movement of multiple symmetrically arranged traction rollers 131 through the gear set 133, and the synchronization is strong; more preferably, guide grooves 135 are symmetrically arranged at the upper and lower ends of the fixed frame 132, and the groove bottom of the guide groove 135 is provided with a wear-resistant pad 136, and the distance between the upper and lower guide grooves 135 is equal to the height of the steel belt 14.

[0055] Preferably, the traction roller 131 is made of stainless steel and has a chrome-plated layer on its outer surface. The chrome-plated layer can improve the hardness of the traction roller 131 and increase the wear resistance, thereby extending the service life of the traction roller 131 .

[0056] like Figure 7 , Figure 8 and Fig. 9 As shown, the cleaning welding assembly 30 includes a fixing rod 31, one end of the upper end surface of the fixing rod 31 is provided with a first insert block 32, the first insert block 32 is embedded in one end of the fixing rod 31, and two first support rollers 33 are connected in the first insert block 32, and the two first support rollers 33 are symmetrically arranged relative to the axis of the fixing rod 31, the upper end of the first support roller 33 protrudes from the fixing rod 31, and the lower end surface of the fixing rod 31 is provided with a second support roller 38, the first insert block 32 and the fixing rod 31 are fixed by screws, and the first insert block 32 and the fixing rod 31 are arranged as a separate structure, which is convenient for fixing the first support roller 33, and can reduce the processing cost, and is also conducive to the subsequent maintenance and replacement of the first support roller 33. In the actual application process, the first support roller 33 plays a supporting role on the steel pipe;

[0057] A positioning bevel 37 is provided on the upper end surface of the fixing rod 31 near the first insert 32. The positioning bevel 37 is arranged obliquely downward from one end close to the first insert 32 to the other end. A second insert 34 is provided on the upper end surface of the positioning bevel 37 and away from the first insert 32. The second insert 34 is embedded in the fixing rod 31. A positioning ring 35 is provided on the second insert 34. The positioning ring 35 is arranged perpendicular to the positioning bevel 37. A coaxial annular cutter 36 is provided in the positioning ring 35. The upper end surface of the annular cutter 36 is The upper end surface of the protruding fixing rod 31 is provided, and a slag discharge through hole 362 is provided on the inner side of the annular cutter 36. The positioning ring 35 and the annular cutter 36 are both arranged on the second insert block 34. The advantages thereof are the same as those of the first insert block 32, which reduces the processing cost and is beneficial to the later maintenance. A positioning bevel 37 is provided to facilitate the installation and fixation of the positioning ring 35, which is beneficial to the subsequent positioning of the annular cutter 36. The inclined setting ensures that the annular cutter 36 is arranged at a certain angle to the weld, which is beneficial to the cutting and has a higher efficiency.

[0058] Preferably, the number of the second support rollers 38 is four and two are arranged in a group at both ends of the fixed rod 31 respectively. The setting direction of the second support rollers 38 is the same as the setting direction of the first support rollers 33. Multi-point support is performed at multiple positions to improve the stability of the fixed rod 31.

[0059] Preferably, the first support roller 33 and the second support roller 38 are made of the same material and are both polyetheretherketone plus 30% carbon fiber, which is strong enough to bear the pressure of the steel pipe and has good wear resistance and a long service life when rotating relative to the steel pipe.

[0060] Preferably, the first insert block 32 and the second insert block 34 are both fixed to the fixing rod 31 by screws. With this detachable structure, assembly is more convenient and quick, efficiency is improved, and processing costs can be reduced.

[0061] Preferably, the upper end surface of the annular cutter 36 is provided with a chamfer 361, which makes the cutting speed faster. More preferably, the annular cutter 36 is fixed to the positioning ring 35 through a plurality of evenly distributed holes. After a period of use, the part where the weld is cut off will be worn, and then it can be rotated a certain angle to be used again, which has high utilization rate and reduces maintenance costs.

[0062] Preferably, if Figure 6 As shown, the fixing rod 31 includes a first fixing plate 311 on an upper layer and a second fixing plate 312 on a lower layer. The first fixing plate 311 is fixed to the second fixing plate 312 by screws. A locking platform is provided at the lower end of the second fixing plate 312 away from the first embedment block 32. The locking platform is locked with the fixing device. The locking platform can support one end of the fixing rod 31 and simultaneously perform multi-point positioning support on the fixing rod 31 together with the second supporting roller 38, which is more stable.

[0063] Preferably, the first fixing plate 311 is made of stainless steel and is arranged relatively close to the upper layer of the steel pipe to avoid rust caused by long-term use and touching the inner wall of the steel pipe. The second fixing plate 312 is made of cast iron, which has high strength and low manufacturing cost.

[0064] like Fig.12 , Fig.13 and Fig.14 As shown, the automatic turning device for steel pipe packaging includes a fixed plate 23, one side of the fixed plate 23 is provided with a driving wheel 24, a driving rod 25, a limiting groove 231 and a sliding block 251, the axis of the driving wheel 24 is arranged perpendicular to the fixed plate 23, the driving wheel 24 is rotatably connected with the fixed plate 23, one end of the driving rod 25 is hinged on the driving wheel 24 and is not arranged to coincide with the center of the driving wheel 24, forming an eccentric structure, which can convert the rotation of the driving wheel 24 into a linear motion of the driving rod 25, the other end of the driving rod 25 is hinged to one end of the sliding block 251, the other end of the sliding block 251 is hinged to one end of the first connecting rod 26 and one end of the second connecting rod 26', the sliding block 251 is arranged in the limiting groove 231 and the two are slidably connected, the driving wheel 24 is driven to rotate by a driving motor, and the driving motor adopts a servo motor 241, which has high positioning accuracy, and the control program is simple, stable and reliable, and the sliding block 251 is arranged in the limiting groove 231, which can ensure the accuracy of the sliding block 251 moving up and down;

[0065] One end of the first connecting rod 26 away from the sliding block 251 is hinged to the middle part of the first rotating arm 27, the lower end of the first rotating arm 27 is hinged to the fixed plate 23, the upper end is hinged to one end of the first toggle arm 28, and the other end of the first toggle arm 28 is contacted with the toggle wheel 293. One end of the second connecting rod 26' away from the sliding block 251 is hinged to the middle part of the second rotating arm 27', the lower end of the second rotating arm 27' is hinged to the fixed plate 23, the upper end is hinged to one end of the second toggle arm 28', and the other end of the second toggle arm 28' is contacted with the toggle wheel 293. The first rotating arm 27 and the second rotating arm 27' are symmetrically arranged relative to the longitudinal center line of the fixed plate 23. The connecting rod slider mechanism described in the previous paragraph drives the first rotating arm 27 and the second rotating arm 27' to move simultaneously, completing the rise and fall of the first toggle arm 28 and the second toggle arm 28', thereby completing the driving of the toggle wheel 293 to achieve rotation.

[0066] The toggle wheel 293 is provided with a plurality of outwardly protruding positioning angles 2931, the first toggle arm 28 is arranged in contact with the inner side of one of the positioning angles 2931, the second toggle arm 28' is arranged in contact with the inner side of one of the positioning angles 2931, the angle between two adjacent positioning angles 2931 is the same as the rotation angle of an intermittent action of the first toggle arm 28, and the symmetrical structure is adopted, and the power transmission is more stable. The above matching relationship can ensure that during the ascending process, the first toggle arm 28 contacts the positioning angle 2931 on the toggle wheel 293 to push the toggle wheel 293 to rotate, and during the descending process, the second toggle arm 28' is based on the positioning angle 2931 just based on the first toggle arm 28, and continues to push the toggle wheel 293 to rotate, thereby realizing continuous operation between multiple toggle rods, and can quickly realize the turning of the steel pipe with higher efficiency;

[0067] A lever 29 is provided at the upper end of the toggle wheel 293 , and the lever 29 is horizontally arranged at one end away from the toggle wheel 293 , so as to facilitate docking with the steel pipe and facilitate the steel pipe to smoothly enter the upper end of the lever 29 .

[0068] Preferably, the limiting groove 231 is U-shaped with its opening facing outward, and the longitudinal center plane of the limiting groove 231 is arranged to coincide with the longitudinal center plane of the sliding block 251 , adopting a symmetrical structure, so that the force is more stable.

[0069] Preferably, a guide protrusion 291 and a chamfer 292 are provided at one end of the lever 29 away from the driving wheel 293, which play a role of introduction and help the steel pipe enter the upper end of the lever 29 more quickly. The outer surface of the lever 29 is provided with a chrome-plated layer to improve the hardness of the outer surface of the lever 29 and extend its service life.

[0070] Preferably, there are multiple levers 29 and they are evenly distributed relative to the axis of the shifting wheel 293 , symmetrically arranged to be evenly stressed, and there are two levers 29 to increase the contact area with the steel pipe and improve the bearing capacity of the lever 29 .

[0071] Preferably, if Fig.10 and Fig.11As shown, there are multiple automatic turning devices for steel pipe packaging and they are arranged in a straight line between the steel pipe production line and the packaging production line. By setting multiple devices, the steel pipe can be supported and turned over from multiple points, and multiple points are subjected to force. It is more secure during the turning process, avoiding problems such as the steel pipe falling off, and switching between the production line and packaging; more preferably, a loading rack 21 is provided on one side of the automatic turning device for steel pipe packaging, and a discharging rack 22 is provided on the other side. Both the loading rack 21 and the discharging rack 22 are arranged to be inclined downward, and are inclined from one end of the loading rack to one end of the discharging rack 22. The steel pipes are arranged below, so that the processed steel pipes slide from one end of the loading rack 21 to the end close to the turning device under the action of gravity, and fall onto the unloading rack 22 after being turned over, and then, under the action of gravity, slide to the end away from the turning device for accumulation, so as to facilitate subsequent packaging; more preferably, a plurality of first baffle plates 211 are provided at one end of the loading rack 21 close to the unloading rack 22, and a plurality of second baffle plates 221 are provided on the side of the unloading rack 22 close to the loading rack 21, and the first baffle plates 211 and the second baffle plates 221 are both vertically arranged.

[0072] Preferably, the first toggle arm 28 and the second toggle arm 28' have the same structure and are both arc-shaped. The arc-shaped structure can avoid stress concentration to a certain extent, and the performance is more stable and reliable.

[0073] During the actual operation, the loading assembly 10, the molding assembly 40, the unloading assembly 20, the cleaning assembly 30 and the packaging assembly 50 operate simultaneously to ensure high efficiency and high quality.

[0074] The working principle of the feeding component 10 is as follows: the steel strip 14 is placed in the protective shell 11, and one end of the steel strip 14 is guided by multiple sets of guide wheels 111 and then passes through the cleaning component 12 and the traction component 13 in turn. When passing through the cleaning component 12, the brush 121 will clean the impurities on the outer surface of the steel strip 14, which is beneficial to improving the quality of the steel strip 14 after being processed into a steel pipe. The brush 121 may be worn after cleaning for a period of time. Because the spring 124 is in a compressed state, it will prompt the top head 122 to tightly contact with the guide shell 125, ensuring that the brush 121 is in close contact with the steel strip 14, improving the cleaning quality. Under the rotation of multiple traction rollers 131, the relatively arranged traction rollers 131 rotate, which can drive the steel strip 14 to move forward and complete the feeding action of the steel strip 14. The entire structure can not only ensure the guidance of the steel strip 14 before feeding, but also complete the cleaning before feeding, thereby improving the quality of the steel pipe. Moreover, the structure is simple, stable and reliable.

[0075] The working principle of the welding cleaning component 30 is as follows: the fixing rod 31 is set at the front end of the steel plate to steel pipe forming, the formed steel pipe is wrapped in the outer ring of the fixing rod 31, and the annular cutter 36 is set corresponding to the weld inside the steel pipe. During the forming process, the steel pipe continues to move forward, and the annular cutter 36 will cut and clean the weld to complete the cleaning of the weld inside the steel pipe. After a period of use, the second insert 34 can be removed from the fixing rod 31, and then the annular cutter 36 can be maintained or replaced. The removed welding slag and other impurities can be discharged through the slag discharge hole 362, and then the inside of the steel pipe can be blown by the fan to complete the cleaning of the internal welding slag. The whole structure is set on the steel pipe production line, and can be completed by simple modification of the existing production line. The cost is low, and there is no need for secondary processing after the steel pipe is unloaded, which greatly improves the production efficiency.

[0076] The working principle of the blanking component 20 is as follows: the driving motor rotates, driving the driving wheel 24 to rotate. Because the driving rod 25 is eccentrically hinged on the driving wheel 24, and since the driving rod 25 is hinged on the sliding block 251, the sliding block 251 is set in the limiting groove 231, the rotation of the driving wheel 24 will drive the sliding block 251 to realize up and down linear motion, and then the first connecting rod and the second connecting rod move upward, driving the first rotating arm 27 and the second rotating arm 27' to move upward, driving the first toggle arm 28 and the second toggle arm 28' to move, to realize the rotation of the toggle wheel 293, and realize the intermittent motion of the toggle rod 29. When the wave wheel rotates, the first toggle arm 28 first drives the toggle wheel 293 to rotate. After rotating to a certain angle, during the resetting process, the second toggle arm 28' descends and continues to drive the toggle wheel 293 to rotate, realizing the intermittent motion of the toggle rod 29. The entire structure is transmitted through a mechanical structure, without the influence of other factors such as air pressure. The performance is stable and reliable, and the power transmission is smoother.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Automatic production line for steel pipe processing, characterized by: It includes a loading assembly, a molding assembly, a unloading assembly and a packaging assembly which are arranged in sequence, and a cleaning welding assembly is provided at the front end of the molding assembly; The feeding assembly comprises a protective shell, a cleaning assembly and a traction assembly, the protective shell is circular, the cleaning assembly is arranged at the outlet end of the protective shell, the traction assembly is arranged at one end of the cleaning assembly away from the protective shell, the steel plate is arranged in the protective shell and one end enters the traction assembly after passing through the cleaning assembly, a plurality of guide wheels are arranged in the protective shell, each guide wheel comprises two extrusion wheels arranged oppositely and the gap between the two is consistent with the thickness of the steel plate, each extrusion wheel is arranged tangent to the steel plate, the extrusion wheels are arranged on the support rod and the two are rotatably connected, and the support rod is fixed on a horizontal plane; The cleaning assembly comprises brushes symmetrically arranged on both sides of the steel plate and arranged in contact with the steel plate, one end of the brush away from the steel plate is fixedly arranged on the top head, one end of the top head away from the brush is provided with a guide column, the diameter of the guide column is smaller than the diameter of the top head, the outer ring of the guide column is coaxially provided with a spring, the outer side of the guide column is provided with a guide shell, the guide shell is fixedly arranged, and the spring is arranged between the inner end surface of the guide shell and the top head and is in a compressed state; The cleaning welding assembly comprises a fixing rod, one end of the upper end surface of the fixing rod is provided with a first insert, the first insert is embedded in one end of the fixing rod, two first supporting rollers are connected in the first insert, the two first supporting rollers are symmetrically arranged relative to the axis of the fixing rod, the upper end of the first supporting roller protrudes from the fixing rod, and the lower end surface of the fixing rod is provided with a second supporting roller; A positioning inclined surface is provided on the upper end surface of the fixing rod near the first insert, and the positioning inclined surface is arranged obliquely downward from one end close to the first insert to the other end, and a second insert is provided on the upper end surface of the positioning inclined surface and away from the first insert, and the second insert is embedded in the fixing rod, and a positioning ring is provided on the second insert, and the positioning ring is arranged perpendicular to the positioning inclined surface, and a coaxial annular cutter is arranged inside the positioning ring, and the upper end surface of the annular cutter protrudes from the upper end surface of the fixing rod, and a slag discharge through hole is arranged on the inner side of the annular cutter; The number of the second supporting rollers is four and two are arranged in a group at both ends of the fixing rod respectively, and the arrangement direction of the second supporting rollers is the same as the arrangement direction of the first supporting rollers; The unloading assembly includes an upper material rack and an unloading rack, the upper material rack is arranged corresponding to the discharge port of the forming assembly, a flip assembly is arranged between the upper material rack and the discharge rack, and one end of the unloading rack away from the upper material rack is arranged corresponding to the packaging assembly; The flip assembly comprises a fixed plate, one side of which is provided with a driving wheel, a driving rod, a limiting groove and a sliding block, the axis of the driving wheel is arranged perpendicular to the fixed plate, the driving wheel is rotatably connected to the fixed plate, one end of the driving rod is hinged on the driving wheel and is not arranged to coincide with the center of the driving wheel, the other end of the driving rod is hinged to one end of the sliding block, the other end of the sliding block is hinged to one end of the first connecting rod and one end of the second connecting rod, the sliding block is arranged in the limiting groove and the two are slidably connected; One end of the first connecting rod away from the sliding block is hinged at the middle part of the first rotating arm, the lower end of the first rotating arm is hinged at the fixed plate, the upper end is hinged to one end of the first toggle arm, and the other end of the first toggle arm is in contact with the toggle wheel; one end of the second connecting rod away from the sliding block is hinged at the middle part of the second rotating arm, the lower end of the second rotating arm is hinged at the fixed plate, the upper end is hinged to one end of the second toggle arm, and the other end of the second toggle arm is in contact with the toggle wheel, and the first rotating arm and the second rotating arm are symmetrically arranged relative to the longitudinal center line of the fixed plate.

2. The automatic production line for steel pipe processing according to claim 1 is characterized in that: The fixing rod includes a first fixing plate on an upper layer and a second fixing plate on a lower layer. The first fixing plate is fixedly locked to the second fixing plate by screws. A locking platform is provided at the lower end of the second fixing plate away from the first insert. The locking platform is locked with the fixing device. The first fixing plate is made of stainless steel, and the second fixing plate is made of cast iron.

3. The automatic production line for steel pipe processing according to claim 1 is characterized in that: The traction assembly includes traction rollers symmetrically arranged on both sides of the steel belt, and the number of traction rollers on each side is arranged in a 3X3 structure. Each of the traction rollers is arranged tangentially to the steel belt. The traction rollers are arranged on a fixed frame and the two are rotatably connected. The traction rollers in the same row are all arranged on a rotating shaft, and the rotating shaft is driven to rotate by a rotating motor. The symmetrically arranged rotating shafts are driven to rotate through a meshing gear set.

4. The automatic production line for steel pipe processing according to claim 1 is characterized in that: The top head is a conical structure and has a smaller diameter at one end close to the brush. The top head is arranged in contact with the inner ring of the guide shell.

5. The automatic production line for steel pipe processing according to claim 1, characterized in that: The toggle wheel is provided with a plurality of outwardly protruding positioning angles, the first toggle arm is arranged in contact with the inner side of one of the positioning angles, the second toggle arm is arranged in contact with the inner side of one of the positioning angles, and the angle between two adjacent positioning angles is the same as the intermittent rotation angle of the first toggle arm.

6. The automatic production line for steel pipe processing according to claim 1 is characterized in that: A shifting rod is arranged at the upper end of the shifting wheel, and an end of the shifting rod away from the shifting wheel is arranged horizontally.

7. The automatic production line for steel pipe processing according to claim 1 is characterized in that: The limiting groove is in a U-shape with an opening facing outward, and a longitudinal center plane of the limiting groove is arranged to coincide with a longitudinal center plane of the sliding block.

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