A thermoplastic pipe assisted bending device

Abstract

The utility model relates to mechanical processing equipment technical field, concretely relates to a kind of thermoplastic plastic pipe auxiliary pipe bending device, including rack, fixator assembly, bending die head, ejection mechanism and heating mechanism;Plastic pipe bending can be realized automatic and standardization operation, reduces manual operation, operation is more convenient, and working efficiency is high, while ensuring the consistency of plastic pipe workpiece bending quality. The plastic pipe workpiece to be processed is fixed by the fixator assembly symmetrically arranged, the plastic pipe workpiece is ejected by the ejection mechanism and the bending die head cooperation, the arc-shaped recess compatible with the outer diameter of plastic pipe and the radius needed to be bent is provided on the bending die head, and the plastic pipe is bent into the bending radius needed under the action of heating mechanism, wherein the preset heating time and temperature are according to the material of plastic pipe during heating, the bending quality is uniform, the uniformity of bending radius is ensured and fold mark is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing equipment technology, specifically to an auxiliary pipe bending device for thermoplastic pipes. Background Technology

[0002] Various thermoplastic pipes are used in wet process equipment. Currently, the method for bending these pipes in production typically involves heating them with a hot air gun, followed by manual bending by operators or using simple tools. This method is labor-intensive and inefficient. Furthermore, since the bending radius is a critical parameter in the bending process, manual operation is prone to errors, making it difficult to maintain consistent bending quality. Smaller bending radii can also easily cause creases, leading to the scrapping of the pipes. Therefore, based on these problems, the existing technology needs further improvement. Utility Model Content

[0003] The purpose of this utility model is to provide an auxiliary pipe bending device for thermoplastic pipes to solve the existing technical problems in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a thermoplastic tube auxiliary bending device is provided, including a frame, a fixing assembly, a bending die, an ejection mechanism, and a heating mechanism. The fixing assembly is symmetrically arranged on the frame and slidably connected to the frame. The fixing assembly is used to fix the plastic tube workpiece and realize the rotation of the plastic tube workpiece. The bending die is arranged at the output end of the ejection mechanism and located between the two fixing assemblies. The ejection mechanism drives the bending die to reciprocate in the vertical direction. The heating mechanism is symmetrically arranged on both sides of the frame.

[0005] Based on the above technical solution, the fixture assembly includes a support plate, a connecting shaft, and a mounting block. The support plates are symmetrically arranged on the frame, the connecting shaft is arranged between the support plates, the mounting block is sleeved on the connecting shaft and rotatably connected, and the mounting block has a through hole for fixing the plastic tube workpiece.

[0006] Based on the above technical solution, a limiting block is also included, which is symmetrically arranged on the frame and located between the two retainer assemblies.

[0007] Based on the above technical solution, the bending die head is configured as a semi-cylinder, and an arc-shaped groove is provided on the outer wall of the semi-cylinder.

[0008] Based on the above technical solution, the bending die head is made of polyvinylidene fluoride, polyphenylene sulfide, or polyvinyl chloride.

[0009] Based on the above technical solution, the bending die head and the output end of the ejection mechanism are detachably connected.

[0010] Based on the above technical solution, the ejection mechanism is configured as a pneumatic cylinder, an electric push rod, or a hydraulic cylinder.

[0011] Based on the above technical solution, the heating mechanism is configured as a heating nozzle.

[0012] Based on the above technical solution, a cooling mechanism is also included, which is symmetrically arranged on both sides of the frame, and the cooling mechanism is configured as cooling nozzles.

[0013] Based on the above technical solution, guide rails are symmetrically arranged on the frame, and a slider is provided at the bottom of the support plate. The slider is adapted to and slidably connected to the guide rails.

[0014] The beneficial effects of the technical solution provided by this utility model are as follows: This invention provides an auxiliary bending device for thermoplastic tubes, which enables automated and standardized bending of plastic tubes, reducing manual operation, making operation more convenient, and increasing work efficiency, while ensuring the consistency of bending quality of the plastic tube workpieces. The plastic tube workpiece to be processed is fixed by a symmetrically arranged fixing assembly. The workpiece is ejected by an ejection mechanism and a bending die. The bending die has an arc-shaped groove adapted to the outer diameter of the plastic tube and the required bending radius. Simultaneously, under the action of a heating mechanism, the plastic tube is bent to the required bending radius. The heating time and temperature are preset according to the material of the plastic tube, resulting in good uniformity of bending quality, ensuring a consistent bending radius and avoiding creases. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the fixation assembly in this utility model; Figure 3 This is a schematic diagram of the bending die head in this utility model; Detailed Implementation The present invention will be further described below with reference to the accompanying drawings and embodiments: In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0016] In the description of this utility model, it should be understood that the terms "left", "right", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] like Figures 1 to 3 As shown, a thermoplastic tube bending auxiliary device includes a frame 1, a fixture assembly 2, a bending die 3, an ejector mechanism 4, and a heating mechanism 5. The fixture assembly 2 is symmetrically arranged on the frame 1 and slidably connected to the frame 1. The fixture assembly 2 is used to fix the plastic tube workpiece and realize the rotation of the plastic tube workpiece. The bending die 3 is arranged at the output end of the ejector mechanism 4 and located between the two fixture assemblies 2. The ejector mechanism 4 drives the bending die 3 to reciprocate in the vertical direction. The heating mechanism 5 is symmetrically arranged on both sides of the frame 1.

[0018] This utility model provides an auxiliary bending device for thermoplastic tubes, which can realize automatic and standardized operation of bending plastic tubes, reduce manual operation, make operation more convenient, and improve work efficiency, while ensuring the consistency of bending quality of plastic tube workpieces. The plastic tube workpiece to be processed is fixed by a symmetrically arranged fixing assembly 2. The workpiece is ejected by the ejection mechanism 4 and the bending die 3. The bending die 3 has an arc-shaped groove adapted to the outer diameter of the plastic tube and the required bending radius. Simultaneously, under the action of the heating mechanism 5, the plastic tube is bent to the required bending radius. The heating time and temperature are preset according to the material of the plastic tube, resulting in good uniformity of bending quality, ensuring a consistent bending radius and avoiding creases.

[0019] Based on the above technical solution, the fixture assembly 2 includes a support plate 21, a connecting shaft 22 and a mounting block 23. The support plates 21 are symmetrically arranged on the frame 1, the connecting shaft 22 is arranged between the support plates 21, and the mounting block 23 is sleeved on the connecting shaft 22 and rotatably connected. The mounting block 23 has a through hole 24 for fixing the plastic tube workpiece.

[0020] Specifically, during the bending process, the bending die 3, driven by the ejector mechanism 4, moves the plastic tube workpiece upward. At this time, both ends of the plastic tube workpiece are fixed in the through holes 24 on the mounting block 23. During the upward pushing of the plastic tube, the mounting block 23 and the plastic tube workpiece fixed on it rotate at a corresponding angle relative to the connecting shaft 22. At the same time, the support plate 21 moves towards the center on the frame 1.

[0021] Based on the above technical solution, a limiting block 6 is also included. The limiting block 6 is symmetrically arranged on the frame 1 and located between the two fixing assemblies 2. By providing the limiting block 6 on the frame, the movement stroke of the fixing assembly 2 can be limited during its sliding on the frame 1, which can effectively prevent excessive bending of the plastic tube workpiece and thus avoid waste tubes.

[0022] Based on the above technical solution, the bending die 3 is configured as a semi-cylinder, and an arc-shaped groove 31 is provided on the outer wall of the semi-cylinder. Preferably, the arc-shaped groove 31 provided on the bending die 3 is adapted to the outer diameter of the plastic tube and the radius to be bent, making processing more convenient.

[0023] Based on the above technical solution, the bending die 3 is made of polyvinylidene fluoride, polyphenylene sulfide, or polyvinyl chloride, that is, it is made of a hard material with low thermal conductivity.

[0024] Based on the above technical solution, the bending die 3 and the output end of the ejector mechanism 4 are detachably connected. Preferably, the output end of the bending die 3 and the ejector mechanism 4 are detachably connected, which facilitates disassembly and replacement. The die can be selected and installed according to the pipe diameter and bending radius of the plastic pipe workpiece to be processed, which enhances its applicability and processing efficiency.

[0025] Based on the above technical solution, the ejection mechanism 4 is configured as a pneumatic cylinder, an electric push rod, or a hydraulic cylinder. It is understood that the ejection mechanism can be any mechanism commonly used in the art capable of driving lifting and lowering movements.

[0026] Based on the above technical solution, the heating mechanism 5 is configured as a heating nozzle.

[0027] Based on the above technical solution, a cooling mechanism 7 is symmetrically arranged on both sides of the frame 1, and the cooling mechanism 7 is configured as a cooling nozzle.

[0028] Preferably, the tube is equipped with a heating nozzle or a cooling nozzle. The heating nozzle outputs heated air to heat the part of the plastic tube that needs to be bent, thereby achieving bending. After bending, the cooling nozzle outputs room temperature or low temperature air to cool the bent part, assisting in rapid shaping.

[0029] Based on the above technical solution, guide rails are symmetrically arranged on the frame 1, and a slider 25 is provided at the bottom of the support plate 21. The slider 25 is adapted to and slidably connected to the guide rails.

[0030] During operation, the symmetrically arranged fixture assemblies 2 clamp the plastic tube workpiece and mount it on the guide rail of the frame 1. The ejection mechanism 4 drives the bending die 3 to move vertically upward, ejecting the plastic tube workpiece upward. During this process, the two fixture assemblies 2 move closer to each other on the frame 1. Simultaneously, during ejection, the two ends of the plastic tube workpiece rotate at corresponding angles within the fixture assemblies 2. The heating nozzles on both sides of the frame 1 operate, aligning with the bending position of the plastic tube workpiece and heating it for a predetermined time for bending. Since the length of the plastic tube workpiece is fixed, both the inner and outer sides of the bending position are stretched by tension, avoiding creases caused by compression on the inner side. After bending, the cooling nozzles open, cooling the bending position with room temperature or low temperature air. After cooling, the bending die 3 returns to its initial position under the drive of the ejection mechanism 4, at which point the bent plastic tube workpiece can be removed.

[0031] The foregoing has shown and described the basic principles and main features of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments. Therefore, the embodiments should be regarded as exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims within this utility model.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thermoplastic pipe bending auxiliary device, characterized in that, The device includes a frame, a retainer assembly, a bending die, an ejector mechanism, and a heating mechanism. The retainer assembly is symmetrically arranged on the frame and slidably connected to it. The retainer assembly is used to fix the plastic tube workpiece and enable the plastic tube workpiece to rotate. The bending die is located at the output end of the ejector mechanism and between the two retainer assemblies. The ejector mechanism drives the bending die to reciprocate in the vertical direction. The heating mechanism is symmetrically arranged on both sides of the frame.

2. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, The fixture assembly includes a support plate, a connecting shaft, and a mounting block. The support plates are symmetrically arranged on the frame, the connecting shaft is arranged between the support plates, and the mounting block is sleeved on the connecting shaft and rotatably connected. The mounting block has a through hole for fixing the plastic tube workpiece.

3. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, It also includes a limiting block, which is symmetrically arranged on the frame and located between the two retainer assemblies.

4. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, The bending die head is configured as a semi-cylinder, and an arc-shaped groove is provided on the outer wall of the semi-cylinder.

5. A thermoplastic pipe auxiliary bending device according to claim 1 or 4, characterized in that, The bending die is made of polyvinylidene fluoride, polyphenylene sulfide, or polyvinyl chloride.

6. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, The bending die head is detachably connected to the output end of the ejection mechanism.

7. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, The ejection mechanism is configured as a pneumatic cylinder, an electric push rod, or a hydraulic cylinder.

8. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, The heating mechanism is configured as a heating nozzle.

9. The thermoplastic pipe auxiliary bending device according to claim 1, characterized in that, It also includes cooling mechanisms symmetrically arranged on both sides of the frame, wherein the cooling mechanisms are configured as cooling nozzles.

10. The thermoplastic pipe auxiliary bending device according to claim 2, characterized in that, The frame is symmetrically equipped with guide rails, and the bottom of the support plate is equipped with a slider, which is adapted to and slidably connected to the guide rails.

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