Sizing and reducing mill

Abstract

The utility model relates to the technical field of reducing mills, and discloses a sizing and reducing mill which comprises a bottom plate, a supporting frame is fixedly installed at one end of the upper end face of the bottom plate, three sets of switching assemblies are rotatably installed on the supporting frame, and each switching assembly comprises a rotating cylinder rotatably connected with the supporting frame and a plurality of sets of reducing rollers connected to the outer wall of the rotating cylinder. A supporting table is fixedly installed at the other end of the upper end face of the bottom plate, a clamping assembly is arranged on the supporting table, and the clamping assembly comprises a rack plate movably connected with the supporting table and two sets of clamping rods movably installed on the upper end face of the supporting table. According to the utility model, the three groups of switching assemblies which are matched with one another are arranged on the support frame, the reducing rollers in a working state can be replaced according to the processing requirements of a user, and the reducing grooves formed in the reducing rollers connected with the outer walls of the switching assemblies have different specifications, so that the reducing rollers with different specifications can meet the processing requirements of different sizes; and therefore, the device is wider in application range during use.

Description

Technical Field

[0001] The utility model relates to the technical field of diameter reducing machines, in particular to a sizing and diameter reducing machine. Background Art

[0002] The sizing and reducing mill is a necessary special equipment for seamless steel pipe factories. After continuous rolling or extrusion, the steel pipe needs to be removed from the pipe and sized. The sizing mill is driven by a single motor, and the sizing is completed by the roller. The axial force of the driving shaft is not large and the two bevel gears are installed back to back. When working, the axial forces of the two bevel gears are balanced with each other;

[0003] When the existing sizing and reducing machines are in use, most of them can only process raw materials with a fixed diameter, and the size after the diameter reduction process is single, which makes the application scope of the existing sizing and reducing machines relatively limited, and cannot be applied to the diameter reduction processing needs of various sizes. For this reason, we propose a sizing and reducing machine. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a sizing and reducing machine.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sizing and reducing machine, comprising a base plate, a support frame is fixedly installed at one end of the upper end surface of the base plate, three groups of switching components are rotatably installed on the support frame, the switching component comprises a rotating cylinder rotatably connected to the support frame and multiple groups of reducing rollers connected and arranged on the outer wall of the rotating cylinder, a support platform is arranged at the other end of the upper end surface of the base plate, a clamping assembly is arranged on the support platform, the clamping assembly comprises a rack plate movably connected to the support platform and two groups of clamping rods movably installed on the upper end surface of the support platform.

[0006] Preferably, a plurality of clamping frames are fixedly installed at equal intervals on the outer wall of the rotating cylinder, and reducing rollers are arranged inside the ends of the plurality of clamping frames, and reducing grooves with different diameters are provided on the plurality of reducing rollers.

[0007] Preferably, an electric telescopic rod is fixedly installed inside the support platform, the telescopic end of the electric telescopic rod is fixedly connected to the lower end of the rack plate, and multiple tooth blocks are arranged on both sides of the rack plate. The upper end surface of the support platform is located on both sides of the rack plate, and transmission gears are rotatably installed, and two groups of clamping rods are respectively arranged on the side of the two groups of transmission gears away from the rack plate. The lower end of the clamping rod is rotatably connected to the corresponding position of the cross-section on the support platform, and an adjustment block meshing with the transmission gear is fixedly installed on the outer wall of the lower end of the clamping rod.

[0008] Preferably, an extrusion block is fixedly mounted on the upper end surface of the rack plate and the ends of the two clamping rods, and the extrusion block is flexibly arranged.

[0009] Preferably, the number of clamping frames fixedly mounted on the outer wall of the rotating cylinder is not less than three groups, a servo motor is fixedly mounted at the end of the clamping frame, and a detachable reducing roller is connected to the output end of the servo motor.

[0010] Preferably, a downwardly recessed arc groove is formed at the end of the extrusion block.

[0011] Preferably, an electric lifting frame is provided at the bottom of the support platform, and the telescopic end of the electric lifting frame is fixedly connected to the bottom surface of the support rod platform, and the bottom surface of the electric lifting frame is fixedly connected to the upper end surface of the bottom plate.

[0012] Beneficial Effects

[0013] The utility model provides a sizing and reducing machine, which has the following beneficial effects:

[0014] (1) The sizing and reducing machine can replace the reducing rollers in working state according to the processing requirements of the user by arranging three sets of switching components that cooperate with each other on the support frame. The reducing grooves on the reducing rollers connected to the outer wall of the switching components have different specifications. Reducing rollers of different specifications can meet the processing requirements of different sizes, making the device more widely applicable when used.

[0015] (2) The sizing and reducing machine drives the ends of the two clamping rods to approach the upper end of the rack plate when the rack plate rises, which can meet the needs of clamping and limiting the raw materials of seamless steel pipes to be processed with different diameters, so that the device can be used to process raw materials with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0020] Figure 3 This is a front view of the support frame structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the switching component of the utility model.

[0022] Legend: 1. Base plate; 2. Support table; 3. Support frame; 4. Rotating cylinder; 5. Clamping frame; 6. Reduction roller; 7. Electric telescopic rod; 8. Rack plate; 9. Extrusion block; 10. Clamping rod; 11. Adjustment block; 12. Transmission gear. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-4 As shown, a sizing and reducing machine comprises a base plate 1, a support frame 3 is fixedly mounted on one end of the upper end surface of the base plate 1, three sets of switching components are rotatably mounted on the support frame 3, the switching components comprise a rotating cylinder 4 rotatably connected to the support frame 3 and a plurality of sets of reducing rollers 6 connected and arranged on the outer wall of the rotating cylinder 4, a support platform 2 is arranged at the other end of the upper end surface of the base plate 1, a clamping component is arranged on the support platform 2, the clamping component comprises a rack plate 8 movably connected to the support platform 2 and two sets of clamping rods 10 movably mounted on the upper end surface of the support platform 2;

[0025] When in use, raw materials such as seamless steel pipes that need to be reduced in diameter extend one end into the interior of the support frame 3 after passing over the top of the rack plate 8. The interior of the support frame 3 can reduce the diameter of the end of the raw material to be processed that extends into the interior of the support frame 3 through the interaction between three groups of reduction rollers 6 of the same specifications. When faced with reduction processing requirements of different sizes, the user can switch the specifications of the reduction rollers 6 inside the support frame 3 by rotating the rotating cylinder 4. When the diameters of the raw materials to be processed are different, the upper end of the rack plate 8 and the ends of the two movable clamping rods 10 cooperate to clamp and limit the raw materials to be processed of different diameters, so that the raw materials to be processed of different diameters enter the interior of the support frame 3 for reduction processing under the action of the existing traction assembly after being clamped and limited by the rack plate 8 and the two clamping rods 10, so that the device can meet the needs of various reduction processing and has a wider range of applications.

[0026] like Figure 1 and Figure 4As shown, a plurality of groups of clamping frames 5 are equidistantly fixedly installed on the outer wall of the rotating cylinder 4, and reducing rollers 6 are arranged inside the ends of the plurality of groups of clamping frames 5, and reducing grooves with different diameters are opened on the plurality of reducing rollers 6. When the reducing sizes required for processing raw materials with different diameters are different, the rotating cylinder 4 can be rotated to rotate the different reducing rollers 6 arranged on the outer wall of the rotating cylinder 4 to the inside of the supporting frame 3. The reducing grooves opened on the reducing rollers 6 arranged in the plurality of groups of clamping frames 5 have different diameters, which can meet the various processing requirements of the user, and when the unused reducing rollers 6 are moved out of the supporting frame 3 after the rotating cylinder 4 is rotated, the user can conveniently inspect and replace the reducing rollers 6 outside the supporting frame 3, thereby ensuring that the reducing rollers 6 outside the supporting frame 3 can operate normally when used next time.

[0027] like Figure 2 As shown, an electric telescopic rod 7 is fixedly installed inside the support platform 2, and the telescopic end of the electric telescopic rod 7 is fixedly connected to the lower end of the rack plate 8. A plurality of tooth blocks are arranged on both sides of the rack plate 8. The upper end surface of the support platform 2 is located on both sides of the rack plate 8 and is rotatably installed with a transmission gear 12, and two groups of clamping rods 10 are respectively arranged on the side of the two groups of transmission gears 12 away from the rack plate 8. The lower end of the clamping rod 10 is rotatably connected to the corresponding position of the upper cross section of the support platform 2, and the outer wall of the lower end of the clamping rod 10 is fixedly installed with an adjustment block 11 meshing with the transmission gear 12. When the original workpiece to be processed needs to be clamped When the rack plate 8 is moved upward, the electric telescopic rod 7 is used to push the rack plate 8 upward. The meshing action between the tooth blocks arranged on both sides of the rack plate 8 and the transmission gear 12 can drive the transmission gear 12 to rotate. The adjusting block 11 meshed with the other side of the transmission gear 12 drives the clamping rod 10 to rotate when it rotates. As a result, when the rack plate 8 moves upward, the ends of the two clamping rods 10 continue to approach the ends of the rack plate 8. The cooperation between the rack plate 8 and the two clamping rods 10 can be suitable for clamping and fixing cylindrical raw materials to be processed with different diameters, thereby facilitating the reduction of the raw materials in the subsequent process.

[0028] like Figure 2 As shown, the upper end surface of the rack plate 8 and the ends of the two clamping rods 10 are fixedly installed with extrusion blocks 9, and the extrusion blocks 9 are flexibly set. When the rack plate 8 moves upward, the ends of the two clamping rods 10 can approach the rack plate 8, and the extrusion blocks 9 set at the upper end of the rack plate 8 and the ends of the two clamping rods 10 can clamp and limit the original workpiece to be processed set at the upper end of the rack plate 8, and the flexibly set extrusion blocks 9 can transform the hard contact between the rack plate 8, the ends of the clamping rods 10 and the original workpiece to be processed into flexible contact, so as to avoid damage to the outer wall of the original workpiece to be processed when the ends of the rack plate 8 and the clamping rods 10 contact with the outer wall of the original workpiece.

[0029] like Figure 2As shown, a downwardly recessed arc groove is provided at the end of the extrusion block 9, and the setting of the arc groove can better fit the outer wall of cylindrical parts such as seamless steel pipes, so that the rack plate 8 and the two sets of clamping rods 10 can better limit the original workpiece to be processed after cooperation.

[0030] like Figure 4 As shown, the number of clamping frames 5 fixedly installed on the outer wall of the rotating cylinder 4 is not less than three groups, and a servo motor is fixedly installed at the end of the clamping frame 5. The output end of the servo motor is connected to a detachable reducing roller 6. When the device is in use, the servo motor can drive the reducing roller 6 to rotate. Under the action of the reducing rollers 6 with the same diameter reducing grooves in the three groups of switching components, the raw materials such as seamless steel pipes can be reduced in diameter. When one group of reducing rollers 6 is in use, the user can disassemble and replace the other unused reducing rollers 6 in the switching component.

[0031] like Figure 2 As shown, an electric lifting frame is provided at the bottom of the support platform 2, and the telescopic end of the electric lifting frame is fixedly connected to the bottom surface of the support rod platform 2, and the bottom surface of the electric lifting frame is fixedly connected to the upper end surface of the base plate 1. The height of the upper end of the rack plate 8 is adjusted by the electric lifting frame, so that the center position of the raw material to be processed placed on the upper end of the rack plate 8 and the three groups of shrinking rollers 6 after combination can be maintained on the same horizontal line.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sizing and reducing machine, comprising a base plate (1), characterized in that: A support frame (3) is fixedly mounted on one end of the upper end surface of the base plate (1), and three groups of switching components are rotatably mounted on the support frame (3), the switching components comprising a rotating cylinder (4) rotatably connected to the support frame (3) and a plurality of groups of shrinking rollers (6) connected and arranged on the outer wall of the rotating cylinder (4); a support platform (2) is arranged on the other end of the upper end surface of the base plate (1), and a clamping component is arranged on the support platform (2), and the clamping component comprises a rack plate (8) movably connected to the support platform (2) and two groups of clamping rods (10) movably mounted on the upper end surface of the support platform (2).

2. A sizing and reducing machine according to claim 1, characterized in that: The outer wall of the rotating cylinder (4) is fixedly provided with a plurality of clamping frames (5) at equal intervals, and the ends of the plurality of clamping frames (5) are provided with reducing rollers (6), and the plurality of reducing rollers (6) are provided with reducing grooves of different diameters.

3. A sizing and reducing machine according to claim 1, characterized in that: An electric telescopic rod (7) is fixedly installed inside the support platform (2), the telescopic end of the electric telescopic rod (7) is fixedly connected to the lower end of the rack plate (8), and a plurality of tooth blocks are arranged on both sides of the rack plate (8). The upper end surface of the support platform (2) is located on both sides of the rack plate (8) and is rotatably installed with a transmission gear (12), and two groups of clamping rods (10) are respectively arranged on the side of the two groups of transmission gears (12) away from the rack plate (8), the lower end of the clamping rod (10) is rotatably connected to the corresponding position of the upper cross section of the support platform (2), and the lower end outer wall of the clamping rod (10) is fixedly installed with an adjustment block (11) meshing with the transmission gear (12).

4. A sizing and reducing machine according to claim 3, characterized in that: The upper end surface of the rack plate (8) and the ends of the two clamping rods (10) are fixedly mounted with an extrusion block (9), and the extrusion block (9) is flexibly arranged.

5. A sizing and reducing machine according to claim 2, characterized in that: The number of clamping frames (5) fixedly mounted on the outer wall of the rotating cylinder (4) is not less than three groups, a servo motor is fixedly mounted at the end of the clamping frame (5), and a detachable reducing roller (6) is connected to the output end of the servo motor.

6. A sizing and reducing machine according to claim 4, characterized in that: The end of the extrusion block (9) is provided with an arc-shaped groove which is recessed downwards.

7. A sizing and reducing machine according to claim 3, characterized in that: An electric lifting frame is provided at the bottom of the support platform (2), and the telescopic end of the electric lifting frame is fixedly connected to the bottom surface of the support platform (2), and the bottom surface of the electric lifting frame is fixedly connected to the upper end surface of the bottom plate (1).

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