Efficient cold drawing machine for seamless steel pipe production

Abstract

The invention discloses an efficient cold-drawing machine for seamless steel pipe production, and particularly relates to the technical field of cold-drawing machine equipment.The efficient cold-drawing machine comprises a first supporting frame, the opposite faces of two rotating supports are jointly provided with a conveying component, a first transmission wheel is arranged on the rear portion of the left side of the conveying component, and the left side of the bottom wall of an inner cavity of the first supporting frame is fixedly connected with a first power component; a drawing mechanism is fixedly connected to the right end of the first supporting frame, two guide sets are fixedly connected to the lower portion of the front side of the drawing mechanism, and a clamping mechanism is arranged on the upper side of the drawing mechanism. According to the efficient cold-drawing machine for seamless steel pipe production, through cooperative use of the drawing die set, the clamping set, the hydraulic pump, the hydraulic cylinder and the second mounting groove, the device can conduct drawing operation on three seamless steel pipes at a time and can also conduct drawing operation on seamless steel pipes with different thicknesses, and the production efficiency is improved. And the lubricating component I and the lubricating component II smear lubricating oil on the seamless steel pipe, so that the steel pipe is protected, and the application range of the device is widened.

Description

Technical Field

[0001] The invention relates to the technical field of cold drawing machine equipment, in particular to a high-efficiency cold drawing machine for producing seamless steel pipes. Background Art

[0002] At present, in the production process of seamless steel pipes, the blank steel pipe needs to be cold-drawn through a cold drawing machine. Before cold drawing, one end of the blank steel pipe is generally shrunken first, and then cold drawing is performed from the shrunken end of the blank steel pipe on the cold drawing machine, thereby changing the diameter and wall thickness of the blank steel pipe to form a seamless steel pipe with a specific diameter and wall thickness. Therefore, an efficient cold drawing machine for the production of seamless steel pipes is needed.

[0003] Chinese patent announcement number CN113198861 B discloses a high-efficiency cold drawing machine for seamless steel pipe production, which includes a frame and a pusher mechanism, a die base and a tube drawing mechanism arranged on the frame in sequence. An annular outer die is installed on the die base. The pusher mechanism includes a pusher drive, a pusher trough and a core rod. The pusher drive and the pusher trough are fixedly arranged on the frame. The length directions of the pusher trough and the core rod are both close to the die base. There are two pusher drives and two core rods. The two core rods are fixedly connected to the two pusher drives respectively. The pusher drive is used to drive the core rod connected thereto to approach or move away from the die base. The core rod is located in the pusher trough, and the end of the core rod close to the die base is fixedly connected to the inner die. The above invention has the effect of shortening the processing time gap of the cold drawing process and improving the processing efficiency; however, the following defects still exist during implementation:

[0004] During the implementation of the above patent document, although the processing time interval of the cold drawing process is shortened and the processing efficiency is improved, there are problems such as the device can only draw one seamless steel pipe and cannot rotate to apply lubricating oil, which makes the steel pipe easily damaged during the drawing process. Summary of the invention

[0005] The main purpose of the present invention is to provide an efficient cold drawing machine for the production of seamless steel pipes, which can effectively solve the problem that the device can only draw one seamless steel pipe and cannot rotate to apply lubricating oil, and the steel pipe is easily damaged during the drawing process.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A high-efficiency cold drawing machine for the production of seamless steel pipes comprises a support frame, the front and rear sides of the upper end of the support frame are fixedly connected to rotating frames, the opposite surfaces of the two rotating frames are jointly provided with a conveying component, the rear left portion of the conveying component is provided with a transmission wheel, the left side of the bottom wall of the inner cavity of the support frame is fixedly connected to a power component, the power component is connected to the transmission wheel through a belt, the right end of the support frame is fixedly connected to a drawing mechanism, the lower front portion of the drawing mechanism is fixedly connected to two guide groups, and the upper side of the drawing mechanism is provided with a clamping mechanism.

[0008] Preferably, the pulling mechanism includes a second support frame, a drawing die mechanism is fixedly connected to the left side of the upper end of the second support frame, a front-to-rear symmetrical track is fixedly connected to the upper end of the second support frame, a baffle is fixedly connected to the upper side of the right wall of the inner cavity of the second support frame, and a front-to-rear symmetrical auxiliary sliding rod is fixedly connected to the upper side of the right wall of the inner cavity of the second support frame and the right side of the drawing die mechanism, the inner cavity of the second support frame is provided with a left-right symmetrical rotating component, the middle parts of the outer surfaces of the two rotating components are commonly wound and connected with a transmission chain, the right side of the bottom wall of the inner cavity of the second support frame is fixedly connected to a power component, and the power component is connected to the rotating component on the right side through a belt.

[0009] Preferably, the die drawing mechanism includes a fixed frame and a hydraulic pump, a lubricating component 1 is fixedly connected to the middle part of the front end of the fixed frame, a mounting groove 2 is opened in the middle part of the right end of the fixed frame, the front wall and the rear wall of the inner cavity of the mounting groove 2 are opened with mounting groove 1, the two inner cavities of the two mounting grooves 1 are fixedly connected to a hydraulic cylinder, the two hydraulic cylinders are connected by an oil pipe, the output end of the hydraulic pump passes through the front end of the fixed frame and the inner cavity of the mounting groove 1 and is fixedly connected to the input end of the hydraulic cylinder located on the front side, the inner cavity of the mounting groove 2 and the output end of the lubricating component 1 are jointly provided with a die drawing group, the middle part of the right end of the fixed frame is provided with a front-to-back symmetrical mounting groove 3, and the two inner cavities of the two mounting grooves 3 are jointly slidably connected with an oil scraper sleeve.

[0010] Preferably, the left end of support frame 2 is fixedly connected to the right end of support frame 1, the lower end of the fixed frame is fixedly connected to the left side of the upper end of support frame 2, the lower parts of the front and rear sides of the right end of the fixed frame are respectively fixedly connected to the left ends of two auxiliary sliding rods, and the lower side of the rear end of the hydraulic pump is fixedly connected to the upper left part of the front end of support frame 2.

[0011] Preferably, the drawing die group includes a die, the outer surface of the die is slidably connected to the inner cavity of the second mounting groove, the front end and the rear end of the die are provided with upper and lower symmetrical limit grooves, the middle part of the left end of the die is provided with three die holes, the middle part of the left end of the die is fixedly connected with a lubricating component 2, the output end of the lubricating component 1 passes through the front end of the fixing frame and is fixedly connected to the input end of the lubricating component 2, and the inner cavities of the two limit grooves on the same side are slidably connected to the output end of the hydraulic cylinder on the same side.

[0012] Preferably, the clamping mechanism includes a base one, a front side and a rear side of a lower end of the base are provided with sliding grooves, a top plate is fixedly connected to the left side of the front end of the base one, a base two is fixedly connected to the upper end of the base one, a sliding hole is provided on the front side and the rear side of the left end of the base two, a front-to-back symmetrical mounting groove four is provided on the left side of the upper end of the base two, two inner cavities of the two mounting grooves four are fixedly connected to hydraulic rods, a front-to-back symmetrical through grooves are provided on the left side of the upper end of the base two, and the two through grooves are located between the two mounting grooves four, a convex plug rod is slidably connected to the inner cavities of the two through grooves, and a clamping group is fixedly connected to the middle part of the upper end of the base two.

[0013] Preferably, the two sliding hole inner cavities are respectively slidably connected to the outer surfaces of the two auxiliary sliding rods, and the two sliding groove inner cavities are respectively slidably connected to the outer surfaces of the two tracks.

[0014] Preferably, the clamping group includes a lower clamping seat, the front end of the lower clamping seat is provided with three clamping holes, the upper end of the lower clamping seat in the horizontal direction is provided with two sliding grooves symmetrically arranged front and back, the four sliding grooves have inner cavities that are slidably connected to an upper clamping plate, the middle part of the front end and the middle part of the rear end of the upper clamping plate are fixedly connected to a connecting plate, the sides of the lower ends of the two connecting plates that are away from each other are respectively fixedly connected to the output ends of the two hydraulic rods, and the sides of the lower ends of the two connecting plates that are close to each other are commonly fixedly connected to the upper end of the convex plug rod, the lower side of the right end of the lower clamping seat is fixedly connected to three elastic telescopic rods, the right ends of the three elastic telescopic rods are commonly fixedly connected to a side plate, the upper side of the left end of the side plate is fixedly connected to three push rods, the left sides of the outer surfaces of the three push rods are respectively slidably connected to the right sides of the inner cavities of the three clamping holes, and the lower end of the lower clamping seat is fixedly connected to the middle of the second upper end of the base.

[0015] Preferably, the two guide groups each include a support column, the lower sides of the rear ends of the two support columns are commonly fixedly connected to the lower side of the front end of the second support frame, the upper ends of the two support columns are commonly fixedly connected to a rotating component, the upper rear and left parts of the outer surfaces of the two rotating components are commonly fixedly connected to a stopper, the upper ends of the two rotating components are commonly fixedly connected to an L-shaped support rod, the middle parts of the upper sides of the two L-shaped support rods are provided with a mounting groove five, the lower parts of the left and right sides of the inner cavities of the two mounting grooves five are commonly fixedly connected to a base plate, the upper ends of the four base plates are commonly fixedly connected to springs, the upper ends of the two springs on the same side are commonly fixedly connected to a T-shaped rotating plate, and the lower sides of the two T-shaped rotating plates are respectively rotatably connected to the lower right parts of the inner cavities of the two mounting grooves five.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention has a drawing mechanism, a guide group and a clamping mechanism. Through the coordinated use of the drawing die group and the clamping group, the device can not only draw three seamless steel pipes at one time, but also can replace different types of drawing die groups with the coordinated use of the hydraulic pump, the hydraulic cylinder and the second mounting groove, and cooperate with the clamping group to draw seamless steel pipes of different thicknesses. Lubricating oil is applied to the seamless steel pipe through the lubricating component one and the lubricating component two, which protects the steel pipe during the drawing process, thereby increasing the scope of application of the device.

[0018] 2. In the specific use process of the present invention, the stability of the device during the drawing process is increased through the use of rails and auxiliary slide rods and the coordinated use of slide grooves and slide holes. In addition, with the coordinated use of the top plate, block and rotating parts, the L-shaped support rod and T-shaped rotating plate support the steel pipe during the drawing process of the device, and with the coordinated use of the bottom plate and spring, after the drawing is completed, it rolls into the external material receiving equipment to play a guiding role. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the drawing mechanism of the present invention;

[0021] Figure 3 It is a schematic diagram of the pulling mechanism of the present invention from another perspective;

[0022] Figure 4 It is a schematic diagram of the die drawing mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of another viewing angle of the die drawing mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the drawing die set of the present invention;

[0025] Figure 7 It is a schematic diagram of the clamping mechanism of the present invention;

[0026] Figure 8 It is a schematic diagram of the clamping group of the present invention;

[0027] Fig. 9 It is a schematic diagram of another viewing angle of the clamping assembly of the present invention;

[0028] Fig.10 It is a schematic diagram of the guide group of the present invention.

[0029] In the figure: 1, rotating bracket; 2, transmission component; 3, transmission wheel 1; 4, power component 1; 5, support frame 1; 6, drawing mechanism; 61, support frame 2; 62, rotating component; 63, baffle; 64, transmission chain; 65, power component 2; 66, track; 67, auxiliary slide; 68, die drawing mechanism; 681, fixed frame; 682, lubricating component 1; 683, hydraulic pump; 684, mounting groove 1; 685, hydraulic cylinder; 686, scraper sleeve; 687, die drawing group; 6871, mold; 6872, limit groove; 6873, lubricating component 2; 6874, mold hole; 688, mounting groove 2; 6 89. Mounting slot three; 7. Guide group; 71. Support column; 72. Rotating component; 73. Stopper; 74. L-shaped support rod; 75. Bottom plate; 76. Spring; 77. T-shaped rotating plate; 78. Mounting slot five; 8. Clamping mechanism; 81. Base one; 82. Convex plug rod; 83. Through slot; 84. Mounting slot four; 85. Slide slot; 86. Top plate; 87. Base two; 88. Slide hole; 89. Clamping group; 891. Lower clamp seat; 892. Clamp hole; 893. Sliding slot; 894. Upper clamp plate; 895. Connecting plate; 896. Elastic telescopic rod; 897. Side plate; 898. Push rod; 890. Hydraulic rod. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] Embodiment 1, as Figure 1 As shown, a high-efficiency cold drawing machine for seamless steel pipe production includes a support frame 5, the front and rear sides of the upper end of the support frame 5 are fixedly connected to a rotating bracket 1, the opposite surfaces of the two rotating brackets 1 are commonly provided with a conveying component 2, the rear part of the left side of the conveying component 2 is provided with a driving wheel 3, the left side of the bottom wall of the inner cavity of the support frame 5 is fixedly connected to a power component 4, the power component 4 and the driving wheel 3 are connected by a belt, the right end of the support frame 5 is fixedly connected to a drawing mechanism 6, the lower front part of the drawing mechanism 6 is fixedly connected to two guide groups 7, and the upper side of the drawing mechanism 6 is provided with a clamping mechanism 8.

[0032] It should be noted that the specific installation method of the power component 4, the circuit connection method and the control method in the present invention are all conventional designs, which are conventional design means of designers, and the power component 4 is composed of a motor and a pulley, and the pulley is connected to the transmission wheel 3 through a belt. In addition, the transmission component 2 is composed of a plurality of transmission wheels and chains wound around the front and rear sides of the plurality of transmission wheels, and the transmission component 2 is installed between two rotating brackets 1 and can rotate.

[0033] First, the transmission component 2 is installed on the rotating bracket 1, and the rotating bracket 1 is supported by the support frame 5, then the power component 4 is started, and the transmission wheel 3 is driven to rotate with the cooperation of the belt, and the transmission component 2 is rotated in the rotating bracket 1 through the transmission wheel 3, and then with the cooperation of the external automatic feeding equipment, three seamless steel pipes that need to be cold-drawn are transferred to the transmission component 2 at one time, and the seamless steel pipe is transported to the drawing mechanism 6 through the transmission component 2, and the right side of the seamless steel pipe is clamped by the clamping mechanism 8, and the drawing begins. During the drawing process, lubricating oil is applied to the surface of the seamless steel pipe through the drawing mechanism 6. Applying lubricating oil can reduce friction, prevent surface oxidation and cooling, etc. At the same time, the conveying component 2 stops rotating, and the external automatic feeding equipment stops feeding. When the clamping mechanism 8 pulls the seamless steel pipe to the right, it will push the guide group 7 to rotate. The guide group 7 supports the lower side of the seamless steel pipe. After the drawing is completed, with the cooperation of the drawing mechanism 6, the seamless steel pipe falls off from the clamping mechanism 8 to the upper side of the two guide groups 7, and rolls along the guide group 7 to the external receiving equipment, so that the device completes the cold drawing of three seamless steel pipes at one time, and then the clamping mechanism 8 returns to the initial position to prepare for the next drawing work, thereby improving work efficiency.

[0034] In order to complete the drawing of three seamless steel pipes at one time with the cooperation of the clamping mechanism 8, Figure 2 and Figure 3 As shown, the drawing mechanism 6 includes a support frame 61, a drawing die mechanism 68 is fixedly connected to the left side of the upper end of the support frame 61, a front-to-rear symmetrical track 66 is fixedly connected to the upper end of the support frame 61, a baffle 63 is fixedly connected to the upper side of the right wall of the inner cavity of the support frame 61, and a front-to-rear symmetrical auxiliary sliding rod 67 is fixedly connected to the upper side of the right wall of the inner cavity of the support frame 61 and the right side of the drawing die mechanism 68, the inner cavity of the support frame 61 is provided with a left-right symmetrical rotating component 62, and a transmission chain 64 is commonly wound and connected to the middle parts of the outer surfaces of the two rotating components 62, and a power component 65 is fixedly connected to the right side of the bottom wall of the inner cavity of the support frame 61, and the power component 65 is connected to the rotating component 62 located on the right side through a belt.

[0035] It should be noted that the specific installation method, circuit connection method and control method of the power component 2 65 in the present invention are all conventional designs and are conventional design means of designers. The power component 2 65 is composed of a motor and a pulley. In addition, the rotating component 62 is composed of a rotating rod, a pulley and a gear compatible with the transmission chain 64. The pulley in the power component 2 65 is connected to the pulley in the rotating component 62 by a belt, and the pulleys in the two rotating components 62 are also connected by belts. When the power component 2 65 is running, the two rotating components 62 will drive the transmission chain 64 to rotate simultaneously with the use of the belt.

[0036] First, the track 66 and the die drawing mechanism 68 are supported by the support frame 2 61, and the clamping mechanism 8 is installed by the two tracks 66 and the auxiliary sliding rod 67. The rotating component 62 can drive the transmission chain 64 to rotate through the cooperation of the power component 2 65 and the belt. Through the rotation of the transmission chain 64, the clamping mechanism 8 can move left and right on the track 66 and the auxiliary sliding rod 67. When the three seamless steel pipes reach the left side of the die drawing mechanism 68 and enter the right side, they will be clamped and fixed by the clamping mechanism 8, and start to be pulled under the rotation of the transmission chain 64, and lubricating oil will be applied while pulling. When it moves to the far right, the clamping mechanism 8 will hit the baffle 63. The seamless steel pipe after three times of drawing falls from the clamping mechanism 8 and falls into the external material receiving equipment with the cooperation of the guide group 7, thereby achieving the purpose of completing the drawing of three seamless steel pipes at one time with the cooperation of the clamping mechanism 8.

[0037] Further explanation, such as Figure 4 and Figure 5 As shown, the die drawing mechanism 68 includes a fixed frame 681 and a hydraulic pump 683. A lubricating component 1 682 is fixedly connected to the middle of the front end of the fixed frame 681. A mounting groove 2 688 is opened in the middle of the right end of the fixed frame 681. The front wall and the rear wall of the inner cavity of the mounting groove 2 688 are opened with mounting grooves 1 684. The inner cavities of the two mounting grooves 1 684 are fixedly connected to hydraulic cylinders 685. The two hydraulic cylinders 685 are connected by oil pipes. The output end of the hydraulic pump 683 passes through the front end of the fixed frame 681 and the inner cavity of the mounting groove 1 684 and is fixedly connected to the input end of the hydraulic cylinder 685 located on the front side. The inner cavity of the second mounting groove 688 and the output end of the lubrication component one 682 are jointly provided with a drawing die set 687, the middle part of the right end of the fixed frame 681 is provided with a front-to-back symmetrical mounting groove three 689, the inner cavities of the two mounting grooves three 689 are jointly slidably connected with an oil scraper sleeve 686, the left end of the support frame two 61 is fixedly connected to the right end of the support frame one 5, the lower end of the fixed frame 681 is fixedly connected to the left side of the upper end of the support frame two 61, the lower parts of the front and rear sides of the right end of the fixed frame 681 are respectively fixedly connected to the left ends of the two auxiliary sliding rods 67, and the lower side of the rear end of the hydraulic pump 683 is fixedly connected to the upper left part of the front end of the support frame two 61.

[0038] It should be noted that the specific installation methods and circuit connection methods and control methods of the lubricating component 682, the hydraulic pump 683 and the mounting groove 684 in the present invention are all conventional designs, which are conventional design means of designers. The lubricating component 682 is composed of a lubricating oil tank and an oil pump, and lubricating oil can be injected through the lubricating oil tank. The hydraulic pump 683 contains hydraulic oil. The hydraulic cylinder 685 has three hydraulic push rods, which are long on the upper and lower sides and short in the middle. The short push rod in the middle will penetrate the oil scraper sleeve 686 to fix the oil scraper sleeve 686.

[0039] In detail, three seamless steel pipes are drawn through the drawing die set 687 in cooperation with the clamping mechanism 8, and the lubricating oil enters the left side of the drawing die set 687 through the lubricating component 1 682 and is smeared on the seamless steel pipe. The excess lubricating oil on the surface of the seamless steel pipe after drawing is scraped off by the scraper sleeve 686, and with the cooperation of the hydraulic pump 683 and the hydraulic cylinder 685, the drawing die set 687 can be quickly installed in the inner cavity of the mounting groove 2 688, and can be quickly disassembled from the inner cavity of the mounting groove 2 688 when the drawing die set 687 is replaced, and seamless steel pipes of different thicknesses can be drawn by replacing the drawing die set 687 and the scraper sleeve 686, which improves the use range of the device and facilitates repair and maintenance.

[0040] Further explanation, such as Figure 6 As shown, the drawing die set 687 includes a die 6871, the outer surface of the die 6871 is slidably connected to the inner cavity of the second installation groove 688, the front and rear ends of the die 6871 are provided with upper and lower symmetrical limit grooves 6872, three die holes 6874 are provided in the middle of the left end of the die 6871, and a lubricating component 2 6873 is fixedly connected to the middle of the left end of the die 6871, the output end of the lubricating component 1 682 passes through the front end of the fixed frame 681 and is fixedly connected to the input end of the lubricating component 2 6873, and the inner cavities of the two limit grooves 6872 on the same side are slidably connected to the output end of the hydraulic cylinder 685 on the same side.

[0041] In detail, the mold 6871 is fixed by the limit groove 6872 with the cooperation of two long hydraulic push rods in the hydraulic cylinder 685, and three seamless steel pipes respectively penetrate the three holes in the lubricating component 2 6873 and enter the mold hole 6874. The lubricating oil is evenly applied to the seamless steel pipes through the lubricating component 2 6873, thereby reducing excessive waste of lubricating oil and reducing costs.

[0042] Embodiment 2: Based on Embodiment 1, this embodiment achieves the purpose of clamping seamless steel pipes of different thicknesses. Figure 7 As shown, the clamping mechanism 8 includes a base 81, a slide groove 85 is provided on the front and rear sides of the lower end of the base 81, a top plate 86 is fixedly connected to the left side of the front end of the base 81, a base 2 87 is fixedly connected to the upper end of the base 81, a slide hole 88 is provided on the front and rear sides of the left end of the base 2 87, a front and rear symmetrical mounting groove 4 84 is provided on the left side of the upper end of the base 2 87, and the inner cavities of the two mounting grooves 4 84 are fixedly connected to hydraulic rods 890, a front and rear symmetrical through grooves 83 are provided on the left side of the upper end of the base 2 87, and the two through grooves 83 are located between the two mounting grooves 4 84, and the inner cavities of the two through grooves 83 are slidably connected to the convex insertion rod 82, and a clamping group 89 is fixedly connected to the middle part of the upper end of the base 2 87, the inner cavities of the two slide holes 88 are respectively slidably connected to the outer surfaces of the two auxiliary slide bars 67, and the inner cavities of the two slide grooves 85 are respectively slidably connected to the outer surfaces of the two rails 66.

[0043] It should be noted that the specific installation method of the hydraulic rod 890 and the circuit connection method and control method in the present invention are all conventional designs and are conventional design means of designers.

[0044] First, the clamping mechanism 8 is installed on the track 66 and the auxiliary slide bar 67 through the slide groove 85 and the slide hole 88. By starting the hydraulic rod 890, the hydraulic rod 890, in cooperation with the clamping group 89, drives the convex plug rod 82 to move downward in the inner cavity of the two through grooves 83, so that the lower side of the convex plug rod 82 is stuck in the gap of the L-shaped support rod 74. Through the rotation of the L-shaped support rod 74, in cooperation with the convex plug rod 82, the slide groove 85 and the slide hole 88, the base 2 87 and the base 1 81 are moved to the left on the auxiliary slide bar 67 and the track 66 respectively, so that the clamping group 89 is moved to a suitable position on the right side of the drawing mechanism 68. The hydraulic rod 890 drives the convex plug rod 82 to move upward with the cooperation of the clamping group 89, and the convex plug rod 82 is separated from the gap of the L-shaped support rod 74, and the seamless steel pipe is transported to the clamping group 89. The hydraulic rod 890 drives the clamping group 89 to clamp and fix the seamless steel pipe while driving the convex plug rod 82 to move downward, so that the lower side is re-stuck in the gap of the L-shaped support rod 74, and the L-shaped support rod 74 rotates to the left to drive the clamping group 89 to perform drawing work under the action of the drawing die mechanism 68. The clamping group 89 can clamp and fix seamless steel pipes of different thicknesses, and finally achieves the purpose of clamping seamless steel pipes of different thicknesses.

[0045] Further explanation, such as Figure 8 and Fig. 9 As shown, the clamping group 89 includes a lower clamping seat 891, three clamping holes 892 are opened at the front end of the lower clamping seat 891, and two sliding grooves 893 are opened at the upper end of the lower clamping seat 891 in the horizontal direction, and the four sliding grooves 893 are slidably connected to the upper clamping plate 894 in the inner cavity. The middle of the front end and the middle of the rear end of the upper clamping plate 894 are fixedly connected to connecting plates 895. The lower ends of the two connecting plates 895 are fixedly connected to the output ends of the two hydraulic rods 890 on the sides away from each other. The two connecting plates 895 are fixedly connected to the output ends of the two hydraulic rods 890 respectively. The sides of the lower ends of the connecting plates 895 that are close to each other are fixedly connected to the upper end of the convex plug rod 82, and three elastic telescopic rods 896 are fixedly connected to the lower side of the right end of the lower clamping seat 891. The right ends of the three elastic telescopic rods 896 are fixedly connected to the side plate 897, and three push rods 898 are fixedly connected to the upper side of the left end of the side plate 897. The left sides of the outer surfaces of the three push rods 898 are slidingly connected to the right sides of the inner cavities of the three clamping holes 892 respectively, and the lower end of the lower clamping seat 891 is fixedly connected to the middle part of the upper end of the base 87.

[0046] In detail, when the hydraulic rod 890 is started to drive the connecting plate 895 to move upward, the upper clamping plate 894 and the convex plug rod 82 will be driven to move upward together. When the three seamless steel pipes are transported to the inner cavity of the clamping hole 892, the hydraulic rod 890 drives the upper clamping plate 894 and the convex plug rod 82 downward through the connecting plate 895, so that the upper clamping plate 894 can clamp and fix the seamless steel pipe in cooperation with the lower clamping seat 891, so that the lower side of the convex plug rod 82 is stuck in the gap of the L-shaped support rod 74, and the seamless steel pipe is pulled by rotating the L-shaped support rod 74. When the seamless steel pipe is pulled out of the inner cavity of the die hole 6874 and the oil scraper sleeve The inner cavity of plate 686 is supported by two guide groups 7. The hydraulic rod 890 drives the connecting plate 895 to make the upper clamping plate 894 and the convex plug rod 82 move slightly upward to the appropriate position, and the convex plug rod 82 will not completely break away from the gap of the L-shaped support rod 74. The clamping group 89 will continue to move to the right until the side plate 897 hits the baffle 63, and will simultaneously push the push rod 898 and the elastic telescopic rod 896, so that the push rod 898 pushes the seamless steel pipe out of the inner cavity of the clamping hole 892, so that the seamless steel pipe falls into the external material receiving device along the two guide groups 7, so as to achieve the purpose of clamping and fixing the seamless steel pipe and completing the drawing work.

[0047] In order to support and guide the seamless steel pipe, such as Fig.10 As shown, the two guide groups 7 both include support columns 71, the lower sides of the rear ends of the two support columns 71 are commonly fixedly connected to the lower side of the front end of the support frame 2 61, the upper ends of the two support columns 71 are both fixedly connected to a rotating component 72, the upper rear and left parts of the outer surfaces of the two rotating components 72 are both fixedly connected to a stopper 73, the upper ends of the two rotating components 72 are both fixedly connected to an L-shaped support rod 74, the middle part of the upper side of the two L-shaped support rods 74 are provided with a mounting groove 5 78, the lower parts of the left and right sides of the inner cavities of the two mounting grooves 5 78 are fixedly connected to base plates 75, the upper ends of the four base plates 75 are all fixedly connected to springs 76, the upper ends of the two springs 76 on the same side are commonly fixedly connected to a T-shaped rotating plate 77, and the lower sides of the two T-shaped rotating plates 77 are respectively rotatably connected to the lower right parts of the inner cavities of the two mounting grooves 5 78.

[0048] It should be noted that the rotating component 72 consists of a rotating upper seat and a rotating lower seat, and blocks 73 are installed on the rear and left sides of the outer surface of the rotating upper seat. The rotating upper seat and the rotating lower seat can rotate ninety degrees, which is a conventional design and a conventional design method of designers.

[0049] When the clamping mechanism 8 clamps the seamless steel pipe, the clamping mechanism 8 moves to the right to perform the drawing work under the cooperation of the L-shaped support rod 74. The clamping mechanism 8 moves to the right, which drives the top plate 86 to move to the right. The top plate 86 moves to the right and hits the stopper 73 at the rear side, so that the stopper 73 at the rear side drives the rotating component 72 to rotate 90 degrees, and then drives the L-shaped support rod 74 to rotate to the lower side of the seamless steel pipe, so that the T-shaped rotating plate 77 is located directly below the three seamless steel pipes. The T-shaped rotating plate 77 supports the seamless steel pipe. When the seamless steel pipe falls off from the clamping mechanism 8 and the rotation center of the T-shaped rotating plate 77 is located in the front side of the T-shaped rotating plate 77, the seamless steel pipe will be pressed on the T-shaped rotating plate 77, and the T-shaped rotating plate 77 will compress the spring 76 located on the rear side. The T-shaped rotating plate 77 tilts toward the rear side, and the three seamless steel pipes will roll along the tilted T-shaped rotating plate 77 and the L-shaped support rod 74 to the external material receiving equipment, playing a supporting and guiding role.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An efficient cold drawing machine for seamless steel pipe production, comprising a support frame (5), characterized in that: The front and rear sides of the upper end of the support frame 1 (5) are fixedly connected to a rotating bracket (1), and the opposite surfaces of the two rotating brackets (1) are provided with a conveying component (2), and the left rear part of the conveying component (2) is provided with a transmission wheel 1 (3). The left side of the bottom wall of the inner cavity of the support frame 1 (5) is fixedly connected to a power component 1 (4), and the power component 1 (4) is connected to the transmission wheel 1 (3) through a belt. The right end of the support frame 1 (5) is fixedly connected to a pulling mechanism (6), and the lower front part of the pulling mechanism (6) is fixedly connected to two guide groups (7), and the upper side of the pulling mechanism (6) is provided with a clamping mechanism (8).

2. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 1, characterized in that: The drawing mechanism (6) comprises a second support frame (61), a drawing die mechanism (68) is fixedly connected to the left side of the upper end of the second support frame (61), a front-to-rear symmetrical track (66) is fixedly connected to the upper end of the second support frame (61), a baffle (63) is fixedly connected to the upper side of the right wall of the inner cavity of the second support frame (61), and a front-to-rear symmetrical auxiliary sliding rod (67) is fixedly connected to the upper side of the right wall of the inner cavity of the second support frame (61) and the right side of the drawing die mechanism (68), the inner cavity of the second support frame (61) is provided with a left-right symmetrical rotating component (62), the middle parts of the outer surfaces of the two rotating components (62) are commonly wound and connected with a transmission chain (64), and the right side of the bottom wall of the inner cavity of the second support frame (61) is fixedly connected to a power component (65), and the power component (65) is connected to the rotating component (62) located on the right side through a belt.

3. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 2, characterized in that: The die drawing mechanism (68) comprises a fixed frame (681) and a hydraulic pump (683). A lubricating component 1 (682) is fixedly connected to the middle of the front end of the fixed frame (681). A mounting groove 2 (688) is provided in the middle of the right end of the fixed frame (681). A mounting groove 1 (684) is provided on the front wall and the rear wall of the inner cavity of the mounting groove 2 (688). The inner cavities of the two mounting grooves 1 (684) are fixedly connected to hydraulic cylinders (685). The two hydraulic cylinders (685) are connected via oil pipes. The output end of the hydraulic pump (683) passes through the front end of the fixed frame (681) and the inner cavity of the mounting groove 1 (684) and is fixedly connected to the input end of the hydraulic cylinder (685) located at the front side. The inner cavity of the mounting groove 2 (688) and the output end of the lubricating component 1 (682) are jointly provided with a drawing die set (687). The middle part of the right end of the fixed frame (681) is provided with a front-to-back symmetrical mounting groove 3 (689). The inner cavities of the two mounting grooves 3 (689) are jointly slidably connected with an oil scraper sleeve (686).

4. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 3, characterized in that: The left end of the second support frame (61) is fixedly connected to the right end of the first support frame (5), the lower end of the fixed frame (681) is fixedly connected to the left side of the upper end of the second support frame (61), the lower front and rear sides of the right end of the fixed frame (681) are respectively fixedly connected to the left ends of two auxiliary sliding rods (67), and the lower rear end of the hydraulic pump (683) is fixedly connected to the upper left side of the front end of the second support frame (61).

5. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 3, characterized in that: The drawing die set (687) comprises a die (6871), the outer surface of which is slidably connected to the inner cavity of the second mounting groove (688), the front and rear ends of the die (6871) are provided with upper and lower symmetrical limit grooves (6872), the middle of the left end of the die (6871) is provided with three die holes (6874), the middle of the left end of the die (6871) is fixedly connected to the second lubricating component (6873), the output end of the first lubricating component (682) passes through the front end of the fixing frame (681) and is fixedly connected to the input end of the second lubricating component (6873), and the inner cavities of the two limit grooves (6872) on the same side are slidably connected to the output end of the hydraulic cylinder (685) on the same side.

6. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 2, characterized in that: The clamping mechanism (8) comprises a base 1 (81), wherein the front and rear sides of the lower end of the base 1 (81) are provided with sliding grooves (85), the front left side of the front end of the base 1 (81) is fixedly connected to a top plate (86), the upper end of the base 1 (81) is fixedly connected to a base 2 (87), the front and rear sides of the left end of the base 2 (87) are provided with sliding holes (88), the upper left side of the base 2 (87) is provided with a front-to-rear symmetrical mounting groove 4 (84), the inner cavities of the two mounting grooves 4 (84) are fixedly connected to a hydraulic rod (890), the upper left side of the base 2 (87) is provided with a front-to-rear symmetrical through grooves (83), and the two through grooves (83) are located between the two mounting grooves 4 (84), the inner cavities of the two through grooves (83) are slidably connected to a convex plug rod (82), and the middle part of the upper end of the base 2 (87) is fixedly connected to a clamping group (89).

7. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 6, characterized in that: The inner cavities of the two sliding holes (88) are respectively slidably connected to the outer surfaces of the two auxiliary sliding rods (67), and the inner cavities of the two sliding grooves (85) are respectively slidably connected to the outer surfaces of the two tracks (66).

8. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 6, characterized in that: The clamping group (89) includes a lower clamping seat (891), the front end of the lower clamping seat (891) is provided with three clamping holes (892), the upper end of the lower clamping seat (891) in the horizontal direction is provided with two front-to-back symmetrical sliding grooves (893), the inner cavities of the four sliding grooves (893) are slidably connected with an upper clamping plate (894), the middle of the front end and the middle of the rear end of the upper clamping plate (894) are fixedly connected with connecting plates (895), the lower ends of the two connecting plates (895) are fixedly connected to the output ends of the two hydraulic rods (890) on the sides away from each other, and the two connecting plates (895) are fixedly connected to the output ends of the two hydraulic rods (890) respectively. The sides of the lower ends of the connecting plates (895) that are close to each other are fixedly connected to the upper end of the convex plug rod (82); three elastic telescopic rods (896) are fixedly connected to the lower side of the right end of the lower clamp seat (891); the right ends of the three elastic telescopic rods (896) are fixedly connected to a side plate (897); three push rods (898) are fixedly connected to the upper side of the left end of the side plate (897); the left sides of the outer surfaces of the three push rods (898) are respectively slidably connected to the right sides of the inner cavities of the three clamp holes (892); the lower end of the lower clamp seat (891) is fixedly connected to the middle of the upper end of the second base (87).

9. The high-efficiency cold drawing machine for seamless steel pipe production according to claim 2, characterized in that: The two guide groups (7) each comprise a support column (71), the lower sides of the rear ends of the two support columns (71) being fixedly connected to the lower sides of the front ends of the second support frame (61), the upper ends of the two support columns (71) being fixedly connected to a rotating component (72), the upper rear parts and the left parts of the outer surfaces of the two rotating components (72) being fixedly connected to a stopper (73), the upper ends of the two rotating components (72) being fixedly connected to an L-shaped support rod (74), the middle parts of the upper sides of the two L-shaped support rods (74) being provided with a mounting groove (78), the lower parts of the left and right sides of the inner cavities of the two mounting grooves (78) being fixedly connected to a bottom plate (75), the upper ends of the four bottom plates (75) being fixedly connected to a spring (76), the upper ends of the two springs (76) on the same side being fixedly connected to a T-shaped rotating plate (77), the lower sides of the two T-shaped rotating plates (77) being respectively rotatably connected to the lower right parts of the inner cavities of the two mounting grooves (78).

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