Multi-purpose pipe welding die for high frequency pipe welding unit
By introducing a geared motor-driven lead screw and moving seat structure into the high-frequency welded pipe unit, combined with components such as the mounting platform and positioning groove, the rapid installation and disassembly of the mold is realized, solving the problem of complex mold disassembly and improving production efficiency and mold adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YINJIANG PRECISION TECH CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
The existing high-frequency welded pipe unit has a complex and cumbersome mold disassembly process, which is not easy to operate and cannot meet the needs of quickly changing molds of different pipe diameters, thus affecting production efficiency.
A multi-purpose welded pipe mold was designed, which adopts a geared motor-driven lead screw and moving seat structure, combined with components such as mounting platform, positioning groove, slide, threaded rod and limit block, to realize the quick installation and disassembly of the mold, and the quick switching of the mold can be realized by the up and down movement of the moving seat.
It simplifies the mold installation and disassembly process, improves mold replacement efficiency, ensures mold stability during processing, and enhances production efficiency and flexibility to adapt to different pipe diameters.
Smart Images

Figure CN224463560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welded pipe mold technology, specifically a multi-purpose welded pipe mold used in high-frequency welded pipe units. Background Technology
[0002] A high-frequency welded pipe machine is a device used to produce welded pipes. It uses high-frequency current heating to roll steel plates into tubular shapes and then welds them. The welded pipe mold is mainly used for shaping the welded pipe. After the metal sheet passes through multiple sets of molds, it can be gradually bent into a tubular structure. The welded pipe mold is a mold used to produce welded pipes. It is usually composed of mold base, mold core, mold sleeve and other components. During the welded pipe processing, different molds can often only produce pipes of a single diameter. Therefore, when producing pipes of different diameters, it is necessary to frequently change the molds, making the use of welded pipe molds relatively limited and reducing the overall work efficiency.
[0003] The prior art patent document CN220092573U provides a multi-purpose welded pipe mold for high-frequency welded pipe units. Multiple different mold bodies are set in the mold mounting frame. By using the lifting and sliding of the mold mounting frame, the corresponding mold can be moved into the processing position. Therefore, when processing pipes of different diameters, the purpose of rapid switching can be achieved, which improves production efficiency.
[0004] Although the existing technology described above allows for the switching of different molds when producing different types of workpieces, the number of mold bodies that the high-frequency welded pipe machine can adapt to is limited due to the fixed height of the machine itself. Once a new type of pipe is required for production, the mold still needs to be replaced. The usual practice is to interchange the commonly used production mold with the mold in the machine. However, the mold disassembly process of this machine is relatively complicated and cumbersome, and the operation is not simple enough to meet people's needs. Therefore, we need a multi-purpose welded pipe mold for high-frequency welded pipe units. Utility Model Content
[0005] The purpose of this utility model is to provide a multi-purpose welded pipe mold for high-frequency welded pipe units, so as to solve the problem that the mold disassembly process of the device mentioned in the background art is relatively complicated and cumbersome, and the operation is not simple enough.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-purpose welded pipe mold for high-frequency welded pipe units, including a base, a fixed outer shell fixedly connected to the top of the base, and a top plate fixedly connected to the inner wall of the fixed outer shell, a reduction motor installed at the bottom of the base, and a lead screw fixedly connected to the output shaft of the reduction motor through a coupling, a movable seat threadedly connected to the outer wall of the lead screw, and an installation frame fixedly connected to the top of the movable seat, an installation component provided on the inner wall of the installation frame, and a fixing component provided on the inner wall of the fixed outer shell;
[0007] The installation assembly includes an installation platform, and the inner wall of the installation platform has a positioning groove and a sliding groove. A cover plate is fixedly connected to the inner wall of the installation platform, and the inner wall of the cover plate has a threaded groove. A threaded rod is threadedly connected to the inner wall of the threaded groove. One end of the threaded rod is rotatably connected to a limit block. A positioning seat is slidably connected to the inner wall of the positioning groove, and a limit groove is provided on the inner wall of the positioning seat. A mold body is fixedly connected to the top of the positioning seat.
[0008] The fixing component includes an elongated groove, and a screw is fixedly connected to the outer wall of the movable seat, with a nut threaded onto the outer wall of the screw.
[0009] Preferably, the geared motor forms a movable structure with a lead screw and a movable seat, and one end of the lead screw is threaded through the movable seat.
[0010] Preferably, there are multiple mounting platforms, and the multiple mounting platforms are arranged at equal intervals within the mounting frame.
[0011] Preferably, the inner wall shape and size of the positioning groove match the outer wall shape and size of the positioning seat, and the inner wall of the positioning groove fits into the outer wall of the positioning seat.
[0012] Preferably, the cover plate forms a threaded structure with a threaded groove and a threaded rod, and one end of the threaded rod extends into the threaded groove for connection.
[0013] Preferably, the shape and size of the limiting block match the shape and size of the limiting groove, and one end of the limiting block extends into the limiting groove.
[0014] Preferably, one end of the screw extends out of a long slot to connect with the nut.
[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0016] First, this utility model includes an installation platform, a positioning groove, a sliding groove, a cover plate, a threaded groove, a threaded rod, a limiting block, a positioning seat, a limiting groove, and a mold body. When installing the mold, the positioning seat at the bottom of the mold body is positioned and placed into the positioning groove of the installation platform. The operator rotates the threaded rod by the handle to move the limiting block in the sliding groove and extend it into the limiting groove, thus fixing the positioning seat on the installation platform. The installation method is simple and easy to operate, facilitating quick installation and disassembly of the mold, improving the efficiency of mold replacement, and meeting people's needs.
[0017] Secondly, this utility model is equipped with a long groove, a screw, and a nut. Through the operation of a geared motor, the movable seat can move up and down, thereby moving the mold inside the mounting frame. When producing pipes of different diameters, it is convenient to quickly switch to the required mold, improving production efficiency. After the movable seat drives the mounting frame to a suitable position, the operator can use the nut to tighten it onto the screw to fix the movable seat in that position, ensuring the stability of the mold during processing and preventing displacement during mold processing from affecting the process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the geared motor and lead screw structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the movable base and mounting frame structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the mounting platform and positioning seat structure of this utility model;
[0022] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0023] The components are as follows: 1. Base; 2. Fixed outer shell; 3. Top plate; 4. Gear motor; 5. Lead screw; 6. Moving seat; 7. Mounting frame; 8. Mounting assembly; 801. Mounting platform; 802. Positioning groove; 803. Slide groove; 804. Cover plate; 805. Threaded groove; 806. Threaded rod; 807. Limiting block; 808. Positioning seat; 809. Limiting groove; 810. Mold body; 9. Fixed assembly; 901. Long groove; 902. Screw; 903. Nut. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figure 1-5 As shown, a multi-purpose welded pipe mold for a high-frequency welded pipe unit includes a base 1. A fixed outer shell 2 is fixedly connected to the top of the base 1, and a top plate 3 is fixedly connected to the inner wall of the fixed outer shell 2. A geared motor 4 is installed at the bottom of the base 1, and a lead screw 5 is fixedly connected to the output shaft of the geared motor 4 via a coupling. A movable seat 6 is threadedly connected to the outer wall of the lead screw 5, and a mounting frame 7 is fixedly connected to the top of the movable seat 6. An mounting assembly 8 is provided on the inner wall of the mounting frame 7, and a fixing assembly 9 is provided on the inner wall of the fixed outer shell 2. The mounting assembly 8 includes a mounting platform 801, and a positioning groove 802 is provided on the inner wall of the mounting platform 801. The inner wall of the mounting platform 801 is provided with a sliding groove 803, and a cover plate 804 is fixedly connected to the inner wall of the mounting platform 801. The inner wall of the cover plate 804 is provided with a threaded groove 805, and a threaded rod 806 is threadedly connected to the inner wall of the threaded groove 805. One end of the threaded rod 806 is rotatably connected to a limit block 807. A positioning seat 808 is slidably connected to the inner wall of the positioning groove 802, and a limit groove 809 is provided on the inner wall of the positioning seat 808. The top of the positioning seat 808 is fixedly connected to the mold body 810. The fixing component 9 includes a long groove 901. A screw 902 is fixedly connected to the outer wall of the moving seat 6, and a nut 903 is threadedly connected to the outer wall of the screw 902.
[0026] With the above technical solution, when installing the mold, the positioning seat 808 at the bottom of the mold body 810 is positioned in the positioning groove 802 of the mounting table 801. The operator rotates the threaded rod 806 by the handle, causing the limiting block 807 to move in the sliding groove 803 and extend into the limiting groove 809, thus fixing the positioning seat 808 on the mounting table 801. The installation method is simple to operate, facilitates quick installation and disassembly of the mold, improves the mold replacement efficiency, and meets people's needs. Through the operation of the reduction motor 4, the moving seat 6 can be moved up and down, thereby enabling the mold in the mounting frame 7 to move. When producing pipes of different diameters, it is convenient to quickly switch to the required mold, improving production efficiency. After the moving seat 6 drives the mounting frame 7 to rise to the appropriate position, the operator can use the nut 903 to tighten it onto the screw 902 to fix the moving seat 6 in that position, ensuring the stability of the mold during processing and avoiding displacement during mold processing that would affect processing.
[0027] Specifically, the geared motor 4 forms a moving structure with the movable seat 6 via the lead screw 5, and one end of the lead screw 5 is threaded through the movable seat 6.
[0028] Through the above technical solution, a bearing is provided at one end of the lead screw 5, and the bearing is fixed in the top plate 3. A threaded groove is provided on the inner wall of the movable seat 6, and the thread in the threaded groove matches the thread on the lead screw 5. A circular groove is opened on the other side of the movable seat 6, and a guide rod slides in the circular groove. The guide rod is fixed on the base 1. Through the guiding action of the guide rod, when the movable seat 6 moves, the movable seat 6 moves more stably on the guide rod. A controller is provided on the outer wall of the fixed housing 2.
[0029] Specifically, there are multiple mounting platforms 801, and these multiple mounting platforms 801 are arranged at equal intervals within the mounting frame 7.
[0030] Through the above technical solution, the mounting platform 801 is fixed in the mounting frame 7 by bolts, and the bottom of the mold body 810 of different models is fixed with the same size positioning seat 808, which facilitates quick assembly.
[0031] Specifically, the inner wall shape and size of the positioning groove 802 match the outer wall shape and size of the positioning seat 808, and the inner wall of the positioning groove 802 fits against the outer wall of the positioning seat 808.
[0032] The above technical solution enhances the connection between the positioning groove 802 and the positioning seat 808, making it easier for the positioning seat 808 to be positioned and assembled into the positioning groove 802. After the positioning seat 808 is positioned and assembled, the limiting groove 809 is aligned with the sliding groove 803.
[0033] Specifically, the cover plate 804 forms a threaded structure with the threaded rod 806 through the threaded groove 805, and one end of the threaded rod 806 extends into the threaded groove 805 for connection.
[0034] With the above technical solution, a handle is provided at one end of the threaded rod 806, and a bearing is provided at the other end of the threaded rod 806. The bearing is fixed on the limiting block 807. When the threaded rod 806 rotates, the limiting block 807 can be moved.
[0035] Specifically, the shape and size of the limiting block 807 match the shape and size of the limiting groove 809, and one end of the limiting block 807 extends into the limiting groove 809.
[0036] The above technical solution enhances the connection between the limiting block 807 and the limiting groove 809, making it easier for one end of the limiting block 807 to extend into the limiting groove 809 and fix the positioning seat 808. Two slide grooves 803 are symmetrically arranged on the mounting platform 801 on each side, allowing four limiting blocks 807 to extend into the limiting groove 809 and apply limiting force to the positioning seat 808 from multiple directions, making its fixation on the mounting platform 801 more secure.
[0037] Specifically, one end of the screw 902 extends out of the long slot 901 and connects with the nut 903.
[0038] With the above technical solution, there are four screws 902, two symmetrically arranged on each side, which makes it easier to tighten the four nuts 903 onto the four screws 902 respectively, so as to make the fixation of the movable seat 6 more secure.
[0039] In use, first connect an external power supply to the device. When the mold body 810 needs to be replaced, the reduction motor 4 drives the lead screw 5 to rotate, causing the moving seat 6 to move upward. The moving seat 6 then moves the mounting frame 7 upward, causing the mounting platform 801 to move upward away from the fixed housing 2. When disassembling the mold, the operator rotates the threaded rod 806 by the handle, causing the limiting block 807 to move within the slide groove 803. One end of the limiting block 807 moves out of the limiting groove 809 of the positioning seat 808. The remaining limiting block 807 repeats the above operation to release the limiting position on the positioning seat 808. The operator removes the positioning seat 808 from the positioning groove 802, completing the disassembly. During installation, the operator aligns the positioning seat 808 on the new model mold body 810 with the positioning groove 802 on the mounting table 801 for positioning and assembly. The operator rotates the threaded rod 806 by the handle, causing the limiting block 807 to move. One end of the limiting block 807 extends into the limiting groove 809 of the positioning seat 808. The remaining limiting block 807... 07 Repeat the above operation to fix the positioning seat 808, completing the mold replacement operation. The installation and disassembly operations are simple and easy to use. When a new mold body 810 is needed, the reduction motor 4 works, causing the moving seat 6 to move the mounting frame 7. The moving mounting frame 7 moves the new mold body 810 to the required processing position. When changing production models and quickly switching molds, the reduction motor 4 works, causing the current mold body 810 to move away and the mold body 810 of the current production model to the required processing position, completing the quick mold switching and improving processing efficiency. After the mold body 810 is moved to the required processing position, the nut 903 is tightened on the screw 902. The remaining screw 902 is used to repeat the above operation to fix the moving seat 6, preventing mold displacement during processing and enhancing stability. When lifting or lowering is required, the nut 903 can be removed before operation. This completes all the work. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-purpose welded pipe mold for high-frequency welded pipe units, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of a fixed outer shell (2), and the inner wall of the fixed outer shell (2) is fixedly connected to a top plate (3). The base (1) is equipped with a reduction motor (4), and the output shaft of the reduction motor (4) is fixedly connected to a lead screw (5) through a coupling. The outer wall of the lead screw (5) is threadedly connected to a movable seat (6), and the top of the movable seat (6) is fixedly connected to an installation frame (7). The inner wall of the installation frame (7) is provided with an installation component (8), and the inner wall of the fixed outer shell (2) is provided with a fixing component (9). The installation assembly (8) includes an installation platform (801), and the inner wall of the installation platform (801) is provided with a positioning groove (802). The inner wall of the installation platform (801) is provided with a sliding groove (803), and the inner wall of the installation platform (801) is fixedly connected with a cover plate (804). The inner wall of the cover plate (804) is provided with a threaded groove (805), and the inner wall of the threaded groove (805) is threadedly connected with a threaded rod (806). One end of the threaded rod (806) is rotatably connected with a limit block (807). The inner wall of the positioning groove (802) is slidably connected with a positioning seat (808), and the inner wall of the positioning seat (808) is provided with a limit groove (809). The top of the positioning seat (808) is fixedly connected with a mold body (810). The fixing component (9) includes a long groove (901), and a screw (902) is fixedly connected to the outer wall of the movable seat (6), and a nut (903) is threadedly connected to the outer wall of the screw (902).
2. The multi-purpose welded pipe mold for high-frequency welded pipe units according to claim 1, characterized in that: The geared motor (4) forms a moving structure with the movable seat (6) through the lead screw (5), and one end of the lead screw (5) is threaded through the movable seat (6).
3. The multi-purpose welded pipe mold for high-frequency welded pipe units according to claim 1, characterized in that: The number of mounting platforms (801) is multiple, and the multiple mounting platforms (801) are arranged at equal intervals within the mounting frame (7).
4. The multi-purpose welded pipe mold for high-frequency welded pipe units according to claim 1, characterized in that: The inner wall shape and size of the positioning groove (802) match the outer wall shape and size of the positioning seat (808), and the inner wall of the positioning groove (802) fits against the outer wall of the positioning seat (808).
5. The multi-purpose welded pipe mold for high-frequency welded pipe units according to claim 1, characterized in that: The cover plate (804) forms a threaded structure with the threaded rod (806) through the threaded groove (805), and one end of the threaded rod (806) extends into the threaded groove (805) for connection.
6. The multi-purpose welded pipe mold for high-frequency welded pipe units according to claim 1, characterized in that: The shape and size of the limiting block (807) match the shape and size of the limiting groove (809), and one end of the limiting block (807) extends into the limiting groove (809).
7. The multi-purpose welded pipe mold for high-frequency welded pipe units according to claim 1, characterized in that: One end of the screw (902) extends out of the long groove (901) and connects with the nut (903).