Plastic pipe hot bending device

Abstract

The utility model relates to the technical field of plastic pipe hot bending, and discloses a plastic pipe hot bending device which comprises a base, a round bottom plate is fixed to the upper surface of one side of the base, a stand column is fixed to the upper surface of the middle of the bottom plate, and a gear motor is installed at the top end of the stand column through a bolt. An L-shaped bent plate is fixed to an output shaft of the gear motor, an electric heating pipe is fixed to the outer wall of one side of the upper end of the bent plate, a hydraulic rod is embedded in the lower end of the bent plate through a bolt, the telescopic end of the hydraulic rod is connected with a hot bending wheel through a rotating shaft, and an electric telescopic rod is further installed on the outer wall of the upper end of the bottom plate through a bolt. A hot bending base is fixed to the telescopic end of the electric telescopic rod. According to the plastic pipe hot bending device, the hot bending base is arranged, the multiple layers of U-shaped wheel structures of different specifications on the hot bending base are matched and combined with the hot bending wheels, hot bending operation of various radiuses and angles can be conducted on plastic pipes to be hot bent, the adjusting mode is easy and convenient, and the applicability in the production operation process is good.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe hot bending, in particular to a plastic pipe hot bending device. Background Art

[0002] Plastic pipe hot bending refers to using heat to soften the plastic pipe and then bending it. This method can effectively achieve very complex curve shapes without changing the properties of the plastic itself. The surface of the plastic pipe is relatively smooth after hot bending, and the wall thickness is uniform and will not change significantly.

[0003] After searching, it was found that there is a hot bending forming device for thermoplastic plastic pipes with a publication number of CN217514535U, which includes a workbench, on which a hot-bent arc pipe is arranged, and the hot-bent arc pipe includes an upper semicircular pipe and a lower semicircular pipe, which are used to avoid interference between the plastic pipe and the hot-bent arc pipe during the removal process, and ensure that the hot-bent plastic pipe will not cause deformation. This practical hot bending structure is a fixed structure, and the hot bending angle and hot bending radius cannot be adjusted according to the operation requirements. It has poor applicability to various hot bending operations. For this reason, we propose a plastic pipe hot bending device. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic pipe hot bending device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic pipe hot bending device, comprising:

[0006] A base, a circular bottom plate is fixed on the upper surface of one side of the base, a column is fixed on the middle upper surface of the bottom plate, a reduction motor is installed on the top of the column by bolts, an L-shaped bent plate is fixed on the output shaft of the reduction motor, an electric heating pipe is fixed to the outer wall of one side of the upper end of the bent plate, a hydraulic rod is embedded in the lower end of the bent plate by bolts, the telescopic end of the hydraulic rod is connected to a hot bending wheel through a rotating shaft, an electric telescopic rod is also installed on the outer wall of the upper end of the base plate by bolts, a hot bending seat is fixed to the telescopic end of the electric telescopic rod, and the hot bending seat is sleeved on the outer wall of the upper end of the column.

[0007] Furthermore, the electric heating tube is rotatably connected to the column through the bending plate and the output shaft of the reduction motor, and the hot bending wheel is telescopically connected to the bending plate through the telescopic end of the hydraulic rod.

[0008] Furthermore, the thermal bending seat is telescopically connected to the bottom plate through the telescopic end of the electric telescopic rod, and the structure of the thermal bending seat is a combined structure of multiple layers of U-shaped wheels, and the thermal bending wheels form a rotating structure between the bending plate and the thermal bending seat.

[0009] Furthermore, a wheel seat is fixed to the upper surface of the base away from the bottom plate, and a guide wheel is installed on the inner surface of the middle part of the wheel seat via a rotating shaft.

[0010] Furthermore, the guide wheel is symmetrically arranged with respect to the central axis of the wheel seat, and the guide wheel, the hot bending seat and the hot bending wheel are parallel to each other.

[0011] Furthermore, a bellows is fixed to the upper surface of the base close to the bottom plate, a fan is installed at one end of the bellows by bolts, a heating wire is passed through the interior of the bellows, and a filter frame is installed on the outer wall of the other end of the bellows by bolts.

[0012] Furthermore, the wind box is connected to the fan through the filter frame, and the heating wires are evenly distributed at equal distances along the inner surface of the wind box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The plastic pipe hot bending device is provided with a hot bending seat. Through the matching combination of multiple layers of U-shaped wheel structures of different specifications on the hot bending seat and the hot bending wheels, the plastic pipe to be hot bent can be hot bent at various radii and angles. The adjustment method is relatively simple and the applicability in the production operation process is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the combined working state structure of the utility model;

[0016] Figure 2 It is a side view structural diagram of the column and the bent plate of the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the base and wheel seat of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the bellows of the utility model in a partially disassembled state.

[0019] In the figure: 1. base; 2. bottom plate; 3. column; 4. reduction motor; 5. bending plate; 6. electric heating pipe; 7. hydraulic rod; 8. hot bending wheel; 9. electric telescopic rod; 10. hot bending seat; 11. wheel seat; 12. guide wheel; 13. bellows; 14. fan; 15. electric heating wire; 16. filter frame. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides a plastic pipe hot bending device through improvement. Please refer to Figure 1-Figure 2 , including: a base 1, a circular bottom plate 2 is fixed on the upper surface of one side of the base 1, a column 3 is fixed on the upper surface of the middle part of the bottom plate 2, a reduction motor 4 is installed on the top of the column 3 by bolts, an L-shaped bending plate 5 is fixed on the output shaft of the reduction motor 4, an electric heating pipe 6 is fixed on the outer wall of one side of the upper end of the bending plate 5, the electric heating pipe 6 is rotatably connected with the column 3 through the bending plate 5 and the output shaft of the reduction motor 4, and the electric heating pipe 6 is used to follow the rotation of the bending plate 5 to continuously heat the bending part of the plastic pipe to be hot-bent to achieve a better hot-bending effect; a hydraulic rod 7 is embedded with a bolt at the lower end of the bending plate 5, and the telescopic end of the hydraulic rod 7 is connected with a hot bending wheel 8 through a rotating shaft, and the rotating shaft is used to make the hot bending wheel 8 rotate smoothly; and the hot bending wheel 8 is telescopically connected to the bending plate 5 through the telescopic end of the hydraulic rod 7, and the hot bending wheel 8 is used to adjust the telescopic end of the hydraulic rod 7 The hot bending seat 10 is a multi-layer structure, and the hot bending wheel 8 is a plurality of U-shaped wheels.

[0022] See also Figure 1 and Figure 3 A plastic pipe hot bending device comprises: a wheel seat 11 is fixed to the upper surface of a base 1 away from a bottom plate 2, a guide wheel 12 is installed on the inner surface of the middle part of the wheel seat 11 through a rotating shaft, the guide wheel 12 is symmetrically arranged about the central axis of the wheel seat 11, and the guide wheel 12 is parallel to the hot bending seat 10 and the hot bending wheel 8. The guide wheel 12 is used to guide the plastic pipe to be hot bent, so that the plastic pipe can stably extend into the working gap between the hot bending wheel 8 and the hot bending seat 10, to prevent the plastic pipe from bending due to the vacancy in the middle section before the hot bending operation.

[0023] See also Figure 1 and Figure 4 A plastic pipe hot bending device comprises: a bellows 13 is also fixed to the upper surface of the base 1 near the bottom plate 2, a fan 14 is installed at one end of the bellows 13 by bolts, an electric heating wire 15 is passed through the interior of the bellows 13, and the electric heating wire 15 is evenly distributed along the inner surface of the bellows 13 at equal distances, the bellows 13 is set to slightly heat the air output by the fan 14 through the electric heating wire 15, so that the wind blows to the surface of the hot-bent plastic pipe, and prevents the cold air from directly blowing on the plastic pipe, causing the plastic pipe to cool down quickly and crack; a filter frame 16 is installed on the outer wall of the other end of the bellows 13 by bolts, and the bellows 13 is connected to the fan 14 through the filter frame 16, and the detachable filter frame 16 is used to filter the air sucked into the bellows 13 to prevent impurities from being blown to the surface of the hot-bent plastic pipe.

[0024] Working principle: For this type of plastic pipe hot bending device, the staff will first support and guide the plastic pipe to be hot bent through the wheel seat 11 and the guide wheel 12 on the base 1 to prevent the plastic pipe from bending due to excessive stagnation in the air. Then the staff will adjust the hot bending wheel 8 and the hot bending seat 10 according to the specifications of the plastic pipe to be hot bent. The hot bending seat 10 can be raised and lowered by the extension and retraction of the telescopic end of the electric telescopic rod 9. The hot bending wheel 8 on one side of the bending plate 5 can be fitted and matched with the hot bending seat 10 through the extension and retraction of the telescopic end of the hydraulic rod 7, so that the plastic pipe can be hot bent with different specifications inside the working gap between the hot bending wheel 8 and the hot bending seat 10. Then the bending plate 5 continuously follows the hot bending of the plastic pipe through the electric heating pipe 6 installed on one side. As the heating is carried out, after heating to an appropriate temperature, the reduction motor 4 drives the bending plate 5 to rotate through the output shaft, so that the hot bending wheel 8 on one side of the bending plate 5 cooperates with the hot bending seat 10 with a multi-layer U-shaped wheel structure to hot bend the plastic pipe, thereby obtaining the hot-bent plastic pipe required for the operation, and the reduction motor 4 is installed on the base 1 through the column 3 and the bottom plate 2 with fasteners, which is convenient for disassembly and maintenance. Finally, the bent plastic pipe will be slowly cooled by the warm air blown by the bellows 13. The bellows 13 drives the air to flow inside through the fan 14, and after being slightly heated by the electric heating wire 15 and filtered by the filter frame 16, the cleaner warm air is sent to the hot bending part of the plastic pipe to avoid cracks in the plastic pipe caused by too fast cooling, and reduce the adhesion of impurities and dust on the surface of the plastic pipe.

[0025] 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 plastic pipe hot bending device, characterized in that: include: A base (1), a circular bottom plate (2) is fixed on the upper surface of one side of the base (1), a column (3) is fixed on the middle upper surface of the bottom plate (2), a reduction motor (4) is installed on the top of the column (3) by means of bolts, an L-shaped bending plate (5) is fixed to the output shaft of the reduction motor (4), an electric heating pipe (6) is fixed to the outer wall of one side of the upper end of the bending plate (5), a hydraulic rod (7) is embedded in the lower end of the bending plate (5) by means of bolts, the telescopic end of the hydraulic rod (7) is connected to a hot bending wheel (8) by means of a rotating shaft, an electric telescopic rod (9) is also installed on the outer wall of the upper end of the bottom plate (2) by means of bolts, a hot bending seat (10) is fixed to the telescopic end of the electric telescopic rod (9), and the hot bending seat (10) is sleeved on the outer wall of the upper end of the column (3).

2. A plastic pipe hot bending device according to claim 1, characterized in that: The electric heating tube (6) is rotatably connected to the column (3) through the bending plate (5) and the output shaft of the reduction motor (4), and the hot bending wheel (8) is telescopically connected to the bending plate (5) through the telescopic end of the hydraulic rod (7).

3. A plastic pipe hot bending device according to claim 1, characterized in that: The hot bending seat (10) is telescopically connected to the bottom plate (2) through the telescopic end of the electric telescopic rod (9), and the structure of the hot bending seat (10) is a combined structure of multiple layers of U-shaped wheels, and the hot bending wheel (8) forms a rotating structure with the hot bending seat (10) through the bending plate (5).

4. The plastic pipe hot bending device according to claim 1, characterized in that: A wheel seat (11) is fixed to the upper surface of the base (1) at a side away from the bottom plate (2), and a guide wheel (12) is installed on the inner surface of the middle part of the wheel seat (11) via a rotating shaft.

5. A plastic pipe hot bending device according to claim 4, characterized in that: The guide wheel (12) is symmetrically arranged with respect to the central axis of the wheel seat (11), and the guide wheel (12) is parallel to the hot bending seat (10) and the hot bending wheel (8).

6. A plastic pipe hot bending device according to claim 1, characterized in that: A bellows (13) is also fixed to the upper surface of the base (1) on the side close to the bottom plate (2); a fan (14) is installed on one end of the bellows (13) by means of bolts; a heating wire (15) is passed through the interior of the bellows (13); and a filter frame (16) is installed on the outer wall of the other end of the bellows (13) by means of bolts.

7. A plastic pipe hot bending device according to claim 6, characterized in that: The wind box (13) is connected to the fan (14) through the filter frame (16), and the heating wires (15) are evenly distributed at equal distances along the inner surface of the wind box (13).

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