Plastic pipeline hot bending device

Abstract

The utility model discloses a plastic pipeline hot bending device and belongs to the technical field of plastic pipe hot bending. A plastic pipeline passes through a bent pipe positioning device and a heating ring, the plastic pipeline is heated through the heating ring, the bent pipe positioning device is driven to move through an arc-shaped moving platform, bending of a heating section of the plastic pipeline is achieved, and pipeline hot bending operation is achieved. Due to the design of the arc-shaped moving platform, the bent pipe positioning device can accurately move, it is ensured that the plastic pipeline is bent according to the preset radian, and the accuracy and reliability of hot bending operation are improved. The bent pipe positioning device is connected with the platform through a connecting shaft, and the plastic pipeline is effectively fixed and positioned. In the heating and bending process, the pipeline is kept stable, deformation or deviation is prevented, and the hot bending operation quality is ensured. Through cooperation of the arc-shaped moving platform, the bent pipe positioning device and the pipe heating unit, automatic control over the hot bending process of the plastic pipeline is achieved, the operation process is simplified, the labor intensity is reduced, the operation stability and consistency are improved, and plastic pipeline production and machining are supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic pipe hot bending, especially to a plastic pipe hot bending device. BACKGROUND

[0002] The plastic pipe hot bending device is a device specially used for bending plastic pipes. The bending of the plastic pipe is mainly completed through two steps of heating and bending. First, the plastic pipe to be bent is placed in the heating area, and the pipe is heated to an appropriate temperature by the heating device, so that it has certain softness and plasticity. Then, the heated pipe is bent by the bending device to achieve the required bending angle and shape. During the bending process, auxiliary tools such as mandrels are often used to reduce the deformation and wrinkles of the pipe.

[0003] In the actual use of the current plastic pipe hot bending device, when the abutting piece pushes the heated section of the plastic pipe for bending, the abutting piece directly contacts the heated section of the plastic pipe. Because the material of the heated section of the plastic pipe is relatively soft and the temperature is relatively high, it is easy to be affected by external force and deformed or damaged. This direct contact may cause scratches, depressions or even cracks on the surface of the plastic pipe, thereby affecting the integrity and service life of the pipe.

[0004] The friction between the abutting piece and the heated section of the plastic pipe may also generate heat, further aggravating the thermal damage of the plastic pipe. This thermal damage not only affects the appearance quality of the plastic pipe, but also may adversely affect its internal structure and performance, such as reducing the pressure-bearing capacity and corrosion resistance of the pipe.

[0005] The use of the abutting piece may also increase the complexity and cost of the operation. In order to ensure that the plastic pipe is not damaged during the bending process, it is necessary to select the appropriate material, shape and size of the abutting piece, and to carry out precise adjustment and control. This not only increases the complexity and maintenance cost of the equipment, but also may reduce the production efficiency. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a plastic pipe hot bending device that can effectively solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0008] A plastic pipe hot bending device, comprising an upper workbench, a lower workbench, a heating instrument and a heating ring, the lower workbench is located below the upper workbench, the heating instrument is installed on the protruding part of the lower workbench, the heating ring is located at the front end of the heating instrument, and the heating ring is placed in the recessed groove of the upper workbench;

[0009] The upper workbench and the lower workbench are both provided with arc-shaped through grooves, and the arc-shaped through groove of the lower workbench is provided with an arc-shaped moving platform, and the arc-shaped moving platform is connected with a connecting shaft, and the connecting shaft is provided with a bent pipe positioning device;

[0010] The two bent pipe positioning devices are opposite to the heating ring, the plastic pipe passes through the bent pipe positioning device and the heating ring, the plastic pipe is heated by the heating ring, the bent pipe positioning device is driven by the arc-shaped moving platform to move, the bending of the heating section of the plastic pipe is realized, and the pipe hot bending operation is realized.

[0011] As a preferred scheme of the utility model, the arc-shaped moving platform comprises a mounting frame, a servo motor and a transmission assembly, the servo motor is mounted on the mounting frame, the transmission assembly is arranged on the mounting frame and moves through the servo motor, the upper end of the mounting frame is provided with an arc-shaped sliding rail, a sliding table is mounted on the track of the arc-shaped sliding rail, the sliding table is connected with the transmission belt of the transmission assembly, and the sliding table moves along the arc-shaped sliding rail.

[0012] As a preferred scheme of the utility model, the mounting frame is fixed on the lower workbench through bolts, and the top surface of the mounting frame is designed in an elliptical shape, the top surface of the arc-shaped sliding rail is designed in an elliptical shape, the arc-shaped part of the arc-shaped sliding rail is designed opposite to the arc-shaped through groove, and the arc shapes of the arc-shaped sliding rail and the arc-shaped through groove are consistent.

[0013] As a preferred scheme of the utility model, the bent pipe positioning device comprises a bent pipe base, a bent pipe groove and a sleeve ring, the upper end of the connecting shaft is provided with the bent pipe base, the side wall of the bent pipe groove is provided with the bent pipe base, the side wall of the bent pipe base is connected with the sleeve ring through a positioning shaft, and the sleeve hole is formed in the sleeve ring.

[0014] As a preferred scheme of the utility model, the bent pipe base is mounted on the upper end of the connecting shaft through fasteners, the upper end of the bent pipe base is provided with a notch, and the positioning shaft is arranged at the notch of the bent pipe base, so that the sleeve hole of the sleeve ring is opposite to the bent pipe groove of the bent pipe base.

[0015] As a preferred scheme of the utility model, the positioning shaft is connected with the sleeve ring through a limiting block, and the positioning shaft is mounted on the bent pipe base through threads, so as to fix the sleeve ring and the bent pipe base.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The design of the arc-shaped moving platform enables the bent pipe positioning device to move along the preset arc-shaped track accurately, so that the plastic pipe can be bent according to the predetermined curvature in the heating and bending process, and the accuracy and reliability of the hot bending operation are improved.

[0018] The pipe bending positioning device is connected to the arc-shaped moving platform via a connecting shaft, enabling effective fixation and positioning of the plastic pipe. During the heating and bending process, the pipe bending positioning device maintains the stability of the pipe, preventing it from deforming or shifting due to heat, thereby ensuring the quality of the hot bending operation.

[0019] The coordinated operation of the arc-shaped moving platform, the pipe bending positioning device, and the pipe heating unit enables automated control of the hot bending process of plastic pipes. This design not only simplifies the operation process and reduces labor intensity, but also improves the stability and consistency of the hot bending operation, providing strong support for the production and processing of plastic pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a top view of the overall structure of this utility model;

[0022] Figure 3 This is a side view of the overall structure of this utility model;

[0023] Figure 4 This is a diagram illustrating the workbench, heating assembly, and heating coil of this utility model.

[0024] Figure 5 This is a diagram illustrating the arc-shaped moving platform and the pipe bending positioning device of this utility model.

[0025] Figure 6 for Figure 5 Enlarged diagram of point A in the middle.

[0026] In the diagram: 1. Upper worktable; 2. Lower worktable; 3. Heating instrument; 4. Heating coil; 5. Arc-shaped through groove; 6. Mounting bracket; 7. Servo motor; 8. Transmission assembly; 9. Arc-shaped slide rail; 10. Slide table; 11. Connecting shaft; 12. Bend seat; 13. Bend groove; 14. Collar; 15. Sleeve hole; 16. Positioning shaft. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1 - Figure 6As shown, a plastic pipe hot bending device mainly consists of an upper workbench 1, a lower workbench 2, a heating instrument 3 and a heating ring 4. The lower workbench 2 is arranged below the upper workbench 1, the heating instrument 3 is installed on the protruding part of the lower workbench 2, and the heating ring 4 is located at the front end of the heating instrument 3. In particular, the heating ring 4 is placed in the recessed groove of the upper workbench 1 to ensure the stability and efficiency of the heating process.

[0029] In addition, both sides of the upper workbench 1 and the lower workbench 2 are designed with arc-shaped through grooves 5. At the arc-shaped through grooves 5 of the lower workbench 2, an arc-shaped moving platform is installed, which is called an arc-shaped moving platform. On the arc-shaped moving platform, a connecting shaft 11 is connected, which passes through the arc-shaped through grooves 5, and a pipe bending positioning device is installed for positioning the bent pipe.

[0030] The two pipe bending positioning devices are opposite to the heating ring 4, so that the plastic pipe can pass through the two positioning devices and through the heating ring 4. The plastic pipe is heated by the heating ring 4, and then the pipe bending positioning device is moved by the arc-shaped moving platform, so as to realize the bending of the heated section of the plastic pipe. In this way, the pipe hot bending operation can be completed, so that the pipe can be bent according to the predetermined arc.

[0031] The arc-shaped moving platform includes a mounting frame 6, a servo motor 7, a transmission assembly 8 and other key components. The servo motor 7 is installed on the mounting frame 6, and the transmission assembly 8 is placed on the mounting frame 6 and moves by the servo motor 7. The upper end of the mounting frame 6 is designed with an arc-shaped slide rail 9, and the slide rail 9 is installed on the track of the slide rail 9. The slide table 10 is connected with the transmission belt of the transmission assembly 8, so as to realize the movement of the slide table 10 along the arc-shaped slide rail 9.

[0032] The mounting frame 6 is fixed on the lower workbench 2 by bolts, and the top view is designed as an ellipse to adapt to the elliptical design of the arc-shaped slide rail 9. The top view of the arc-shaped slide rail 9 is also designed as an ellipse, and the arc-shaped part is opposite to the arc-shaped through groove 5, which ensures that the arc-shaped slide rail 9 is consistent with the arc-shaped through groove 5, thereby ensuring the coordination and smooth operation of the whole device.

[0033] The pipe bending positioning device includes a pipe bending seat 12, a pipe bending groove 13 and a sleeve ring 14. The upper end of the connecting shaft 11 is provided with the pipe bending seat 12, and the sidewall of the pipe bending groove 13 is arranged on the pipe bending seat 12. The sidewall of the pipe bending seat 12 is connected with the sleeve ring 14 through a positioning shaft 16, and the sleeve hole 15 is arranged on the sleeve ring 14, so that the plastic pipe can pass through.

[0034] The elbow seat 12 is installed on the upper end of the connecting shaft 11 by fasteners, and its upper end is specially designed with a notch to position the shaft 16 to install the sleeve ring 14 at the notch of the elbow seat 12. In this way, the sleeve hole 15 of the sleeve ring 14 can be aligned with the elbow groove 13 of the elbow seat 12, ensuring the accurate position of the plastic pipe during the heating and bending process.

[0035] The positioning shaft 16 is connected to the sleeve ring 14 through a limiting block and is installed on the elbow seat 12 through threads, thereby fixing the sleeve ring 14 to the elbow seat 12. This design ensures the stability and reliability of the elbow positioning device during operation, making the entire heating and bending process more accurate and efficient.

[0036] Assembly process: Place the lower workbench 2 below the upper workbench 1. Install the heating instrument 3 on the protruding part of the lower workbench 2. Place the heating coil 4 in the recessed groove of the upper workbench 1, ensuring it is at the front end of the heating instrument 3. Install the arc-shaped moving platform at the arc-shaped through slot 5 of the lower workbench 2. Pass the connecting shaft 11 through the arc-shaped through slot 5 and install it on the arc-shaped moving platform. Place the transmission assembly 8 on the mounting bracket 6 and move it through the servo motor 7. Design an arc-shaped slide rail 9 on the upper end of the mounting bracket 6 and install a sliding table 10 on its track. Ensure that the sliding table 10 is connected to the transmission belt of the transmission assembly 8 so that the sliding table 10 can move along the arc-shaped slide rail 9. Install the elbow seat 12 on the upper end of the connecting shaft 11 through fasteners. Open the elbow groove 13 on the side wall of the elbow seat 12. Install the sleeve ring 14 on the notch of the elbow seat 12 through the positioning shaft 16, ensuring that the sleeve hole 15 is aligned with the elbow groove 13. Fix the positioning shaft 16 to the elbow seat 12 through limiting blocks and threads. Use bolts to fix the mounting bracket 6 to the lower workbench 2. Ensure that the top view of the mounting bracket 6 is designed as an ellipse to adapt to the elliptical design of the arc-shaped slide rail 9.

[0037] Usage process: Place the plastic pipe between the two elbow positioning devices and pass it through the heating coil 4. Turn on the heating instrument 3 to heat the plastic pipe until the desired bending temperature is reached. Start the servo motor 7 to make the transmission assembly 8 drive the sliding table 10 to move along the arc-shaped slide rail 9. The arc-shaped moving platform drives the elbow positioning device to move in an arc shape, thereby bending the heated section of the plastic pipe. During the bending process, adjust the position of the elbow positioning device to ensure that the plastic pipe bends according to the predetermined curvature. When the plastic pipe reaches the predetermined curvature, turn off the heating instrument 3 and stop heating. Remove the bent plastic pipe and complete the heating and bending operation. Check if the bent pipe meets the requirements and make fine adjustments if necessary.

[0038] It is to be noted that, in the present document, relational terms such as first and second, and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0039] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic pipe hot bending device, comprising an upper workbench (1), a lower workbench (2), a heating instrument (3) and a heating ring (4), wherein the lower workbench (2) is located below the upper workbench (1), the heating instrument (3) is installed on the protruding part of the lower workbench (2), the heating ring (4) is located at the front end of the heating instrument (3), and the heating ring (4) is placed in the recessed groove of the upper workbench (1), characterized in that: Both sides of the upper workbench (1) and the lower workbench (2) are provided with arc-shaped through grooves (5), and an arc-shaped moving platform is installed at the arc-shaped through groove (5) of the lower workbench (2), and a connecting shaft (11) is connected to the arc-shaped moving platform, and the connecting shaft (11) is provided with a bent pipe positioning device which penetrates through the arc-shaped through groove (5); ​ The two bent pipe positioning devices are opposite to the heating ring (4), the plastic pipe passes through the bent pipe positioning device and penetrates through the heating ring (4), the plastic pipe is heated by the heating ring (4), the bent pipe positioning device is driven by the arc-shaped moving platform to move, the bending of the heating section of the plastic pipe is realized, and the pipe hot bending operation is realized.

2. A device for hot bending plastic pipe according to claim 1, wherein: The arc-shaped moving platform comprises a mounting frame (6), a servo motor (7) and a transmission assembly (8), the servo motor (7) is installed on the mounting frame (6), the transmission assembly (8) is arranged on the mounting frame (6), and the servo motor (7) is used for realizing movement, an arc-shaped sliding rail (9) is arranged at the upper end of the mounting frame (6), a sliding table (10) is installed on the track of the arc-shaped sliding rail (9), and the sliding table (10) is connected with the transmission belt of the transmission assembly (8), so that the sliding table (10) moves along the arc-shaped sliding rail (9).

3. A device for hot bending plastic pipe according to claim 2, wherein: The mounting frame (6) is fixed on the lower workbench (2) by bolts, and the top surface of the mounting frame (6) is designed in an elliptical shape, the top surface of the arc-shaped sliding rail (9) is designed in an elliptical shape, the arc-shaped part of the arc-shaped sliding rail (9) is designed to be opposite to the arc-shaped through groove (5), and the arc-shaped sliding rail (9) and the arc-shaped through groove (5) are consistent in shape.

4. The apparatus of claim 3, wherein: The bent pipe positioning device comprises a bent pipe seat (12), a bent pipe groove (13) and a sleeve ring (14), the upper end of the connecting shaft (11) is provided with the bent pipe seat (12), the side wall of the bent pipe groove (13) is provided with the bent pipe seat (12), the side wall of the bent pipe seat (12) is connected with the sleeve ring (14) through a positioning shaft (16), and the sleeve hole (15) of the sleeve ring (14) is opposite to the bent pipe groove (13) of the bent pipe seat (12).

5. The apparatus of claim 4, wherein: The bent pipe seat (12) is installed at the upper end of the connecting shaft (11) through fasteners, the upper end of the bent pipe seat (12) is provided with a notch, the positioning shaft (16) is installed at the notch of the bent pipe seat (12) to make the sleeve hole (15) of the sleeve ring (14) opposite to the bent pipe groove (13) of the bent pipe seat (12).

6. A device for hot bending plastic pipe according to claim 5, wherein: The positioning shaft (16) is connected with the sleeve ring (14) through a limiting block, and the positioning shaft (16) is installed on the bent pipe seat (12) through threads to fix the sleeve ring (14) and the bent pipe seat (12).

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