Threaded smoke tube forming device
By designing a threaded smoke pipe forming device, the clamping and support of the positioning wheel and bracket are used to solve the problem of instability in the processing of steel pipes and achieve high-quality molding of the threaded smoke pipe.
Patent Information
- Application Number
- CN202420234334.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-01-31
AI Technical Summary
During the processing of threaded smoke pipes, the instability of the processing position of the steel pipe affects the forming quality of the threads on the surface of the smoke pipe.
A threaded smoke pipe forming device is designed, including a rotary fixture, a driving device, a molding mechanism and a tail frame. The forming mechanism consists of a shell, a positioning wheel, a top pressure wheel, a bracket and a high-pressure oil cylinder. The positioning wheel and a bracket are driven by a high-pressure oil cylinder to achieve surrounding clamping and support, and the top pressure wheel is used for spin forming.
By clamping and supporting the positioning wheel and bracket, the stability of the steel pipe processing position is improved, the tail vibration is reduced, and the high-quality forming of the thread is ensured. The use of a brush further cleanses the surface of the smoke pipe, avoiding the influence of large particles of slag.
Smart Images
Figure CN222470357U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boiler smoke tube forming, in particular to a threaded smoke tube forming device. Background Art
[0002] The threaded smoke pipe is a boiler-specific seamless steel pipe that has been reprocessed to have a spiral surface. Its function is to speed up the flue gas through the formation of threads and reduce the retention of dust, thereby achieving a long service life, high efficiency and reduced costs.
[0003] In the processing and forming process of threaded smoke pipes, threaded pipe rolling machines are generally used to process threaded smoke pipes. The processing procedures of threaded smoke pipes for gas boilers are generally divided into the following steps: Clamping: clamp one end of the smoke pipe workpiece on the fixture of the rotating device and fix it, and the other end is supported by the tail frame and not fixed; Debugging equipment for trial operation: the clamped steel pipe rotates, the threaded pipe rolling machine is turned on, and the spiral thread is slowly fed on the surface of the steel pipe through the top pressing wheel to process; in the processing process, the steel pipe is formed while rotating. Due to the top pressure force, the vibration amplitude of its tail supported by the tail frame is relatively large. The stability of the smoke pipe clamping affects the quality of the thread processing and forming of the smoke pipe surface. Therefore, in order to improve the stability of the steel pipe processing position and ensure the quality of the thread processing and forming of the smoke pipe surface, we provide a threaded smoke pipe forming device. Utility Model Content
[0004] The utility model aims to provide a threaded cigarette pipe forming device, which solves the problem of improving the stability of the steel pipe processing position and ensuring the quality of the thread processing and forming of the cigarette pipe surface.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a threaded cigarette tube forming device, comprising a rotating fixture, a crane device, a forming mechanism and a tail frame, the rotating fixture is clamped on the head of the cigarette tube workpiece, the tail of the cigarette tube workpiece is supported by the tail frame, the forming mechanism is fixed on the crane device, the crane device drives the forming mechanism to feed on the cigarette tube workpiece along the guide rail, the forming mechanism comprises an outer shell, a positioning wheel, a pressing wheel, a bracket and a high-pressure oil cylinder, the positioning wheel is located in the outer shell, and the upper positioning wheel is inclined to the top two sides of the circumference of the cigarette tube workpiece, and the lower positioning wheel is inclined to the bottom two sides of the circumference of the cigarette tube workpiece, the pressing wheel is located in the outer shell and presses on the surface of the cigarette tube workpiece, the positioning wheel and the pressing wheel are both rotatably connected to the corresponding high-pressure oil cylinder output end, the high-pressure oil cylinder is installed on the outer shell, the bracket is fixed to the discharge side of the outer shell, and the cigarette tube workpiece passes through the pressing wheel, the positioning wheel and the bracket in sequence.
[0006] Preferably, the rotary clamp is a three-jaw chuck.
[0007] Preferably, a circle of brushes is provided at the outlet of the shell, and the bristles of the brushes are placed on the peripheral surface of the smoke pipe workpiece.
[0008] Preferably, the bracket comprises an inner tube rack, an outer connecting rack and an arc plate, wherein the inner tube rack and the outer connecting rack are connected via an annularly distributed arc plate, the outer connecting rack is connected to the outer shell, and the inner tube rack supports the smoke tube workpiece.
[0009] The utility model has the following beneficial effects:
[0010] 1. The utility model sets a positioning wheel and a bracket, and uses a high-pressure oil cylinder to drive the positioning wheels in all directions to clamp the smoke pipe workpiece stably. The positioning wheel has the function of supporting and clamping the smoke pipe workpiece, and the positioning wheel can grind and polish the surface of the smoke pipe workpiece, which has the effect of removing rust. The bracket is used to support the smoke pipe workpiece on the side of the shell discharge, which plays a role of buffering and shock absorption, reduces the influence of the tail vibration of the smoke pipe workpiece on the molding position of the molding mechanism, improves the stability of the steel pipe processing position, and ensures that the steel pipe is firmly supported and the quality of the thread processing and molding of the steel pipe surface;
[0011] 2. The utility model provides a brush, which uses bristles to adhere to the surface of the smoke pipe workpiece in advance and blocks the granular slag outside the forming mechanism, thereby achieving the effect of cleaning the smoke pipe workpiece and preventing large granular slag from entering the forming mechanism to affect the rolling effect of the positioning wheel and the pressing effect of the pressing wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the molding mechanism structure of the utility model;
[0014] Figure 3 It is a structural schematic diagram of the positioning wheel and the top pressure wheel of the utility model.
[0015] In the figure: 1. rotating fixture; 2. driving device; 3. forming mechanism; 31. shell; 311. brush; 32. positioning wheel; 33. top pressure wheel; 34. bracket; 341. inner tube rack; 342. outer connecting frame; 343. arc plate; 35. high-pressure cylinder; 4. smoke pipe workpiece; 5. tail rack; 6. guide rail. DETAILED DESCRIPTION
[0016] 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.
[0017] like Figure 1-3As shown, the utility model provides a technical solution: a threaded cigarette tube forming device, including a rotating fixture 1, a driving device 2, a forming mechanism 3 and a tail frame 5, the rotating fixture 1 is a three-jaw chuck, the rotating fixture 1 is clamped on the head of the cigarette tube workpiece 4, the tail of the cigarette tube workpiece 4 is supported by the tail frame 5, the forming mechanism 3 is fixed on the driving device 2, the driving device 2 drives the forming mechanism 3 along the guide rail 6 to slowly feed from the head to the tail of the cigarette tube workpiece 4, the forming mechanism 3 includes a shell 31, a positioning wheel 32, a top pressure wheel 33, a bracket 34 and a high-pressure cylinder 35, the positioning wheel 32 is located on the shell 31, and the upper positioning wheel 32 is inclined on both sides of the top of the peripheral surface of the smoke pipe workpiece 4, and the lower positioning wheel 32 is inclined on both sides of the bottom of the peripheral surface of the smoke pipe workpiece 4. The upper and lower four positioning wheels 32 are all rotatably connected to the corresponding high-pressure oil cylinder 35 output end, and the high-pressure oil cylinder 35 is used to drive the positioning wheels 32 in all directions to clamp the smoke pipe workpiece 4 around stably. The positioning wheel 32 has the function of supporting and clamping the smoke pipe workpiece 4, and the positioning wheel 32 can grind and polish the surface of the smoke pipe workpiece 4, which has the effect of removing rust. The pressing wheel 33 is located in the shell 31 and presses on the surface of the smoke pipe workpiece 4. The pressing wheel 33 is rotatably connected to the corresponding high-pressure oil cylinder 35 output end. At the output end of the oil cylinder 35, the high-pressure oil cylinder 35 is used to drive the pressing wheel 33 to press on the surface of the rotating smoke pipe workpiece 4 to achieve the effect of spin forming. The high-pressure oil cylinder 35 is installed on the shell 31, and the bracket 34 is fixed on the discharge side of the shell 31. A circle of brushes 311 are set at the discharge port of the shell 31. The bristles of the brush 311 are placed on the peripheral surface of the smoke pipe workpiece 4. The brush 311 uses the bristles to adhere to the surface of the smoke pipe workpiece 4 in advance and blocks the granular slag material outside the forming mechanism 3, so as to achieve the effect of cleaning the smoke pipe workpiece 4 and prevent large granular slag material from entering the forming mechanism 3 to affect the rolling effect of the positioning wheel 32 and the pressing effect of the pressing wheel 33. The smoke tube workpiece 4 passes through the top pressing wheel 33, the positioning wheel 32 and the bracket 34 in sequence, the inner tube frame 341 of the bracket 34, the outer connecting frame 342 and the arc plate 343, the inner tube frame 341 and the outer connecting frame 342 are connected by the annularly distributed arc plate 343, the outer connecting frame 342 is connected to the outer shell 31, the inner tube frame 341 supports the smoke tube workpiece 4, and the bracket 34 is used to support the smoke tube workpiece 4 on the discharge side of the outer shell 31, which plays a role of buffering and shock absorption, reduces the influence of the tail vibration of the smoke tube workpiece 4 on the forming position of the forming mechanism 3, and ensures the firm support of the steel tube and the quality of the thread processing and forming of the steel tube surface.
[0018] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A threaded cigarette tube forming device, comprising a rotating fixture (1), a crane device (2), a forming mechanism (3) and a tail frame (5), wherein the rotating fixture (1) is clamped on the head of a cigarette tube workpiece (4), the tail of the cigarette tube workpiece (4) is supported by the tail frame (5), the forming mechanism (3) is fixed on the crane device (2), and the crane device (2) drives the forming mechanism (3) to feed on the cigarette tube workpiece (4) along a guide rail (6), characterized in that: The forming mechanism (3) comprises an outer shell (31), a positioning wheel (32), a pressing wheel (33), a bracket (34) and a high-pressure oil cylinder (35). The positioning wheel (32) is located in the outer shell (31), and the upper positioning wheel (32) is inclined to press on both sides of the top of the peripheral surface of the smoke tube workpiece (4), and the lower positioning wheel (32) is inclined to press on both sides of the bottom of the peripheral surface of the smoke tube workpiece (4). The pressing wheel (33) is located in the outer shell (31) and presses on the surface of the smoke tube workpiece (4). The positioning wheel (32) and the pressing wheel (33) are both rotatably connected to the output end of the corresponding high-pressure oil cylinder (35). The high-pressure oil cylinder (35) is mounted on the outer shell (31). The bracket (34) is fixed on the discharge side of the outer shell (31). The smoke tube workpiece (4) passes through the pressing wheel (33), the positioning wheel (32) and the bracket (34) in sequence.
2. A threaded cigarette tube forming device according to claim 1, characterized in that: The rotating fixture (1) is a three-jaw chuck.
3. A threaded cigarette tube forming device according to claim 1, characterized in that: A circle of brushes (311) is provided at the outlet of the shell (31), and the bristles of the brushes (311) are placed on the peripheral surface of the smoke pipe workpiece (4).
4. A threaded cigarette tube forming device according to claim 1, characterized in that: The bracket (34) comprises an inner tube rack (341), an outer connecting rack (342) and an arc plate (343); the inner tube rack (341) and the outer connecting rack (342) are connected via an annularly distributed arc plate (343); the outer connecting rack (342) is connected to the outer shell (31); and the inner tube rack (341) supports a cigarette pipe workpiece (4).