Pipe bending mechanism for PVC power pipe production

Abstract

The utility model belongs to pipe processing technical field especially is bent pipe mechanism for PVC electric power pipe production. Including the bottom plate, the bottom plate is installed with the support, the right side of support is equipped with the locating block, and the inner bending mould is tightly equipped and installed on the locating block, the left side of support is installed with first electric push rod, and the piston rod of first electric push rod is installed with the push plate, the push plate is tightly installed with the outer bending mould, the rear side of bottom plate is installed with second electric push rod, and the piston rod of second electric push rod is installed with the fixed plate, and the fixed plate is tightly installed with the adjusting stud head. The utility model discloses through first electric push rod and pushes the outer bending mould and the inner bending mould cooperation, realizes the steady clamping and the bending of pipe material, the long spring on adjusting stud head can play the buffering and the supporting effect to pipe material in the bending process, avoids the crack or excessive deformation of pipe material because of local excessive stress, adopts first electric push rod, second electric push rod and so on electric drive component, reduces the manual intervention, improves the bent pipe efficiency and the operating safety.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to a pipe bending mechanism for the production of PVC power pipes. Background Technology

[0002] PVC power pipes are characterized by high strength, good flexibility, high temperature resistance, corrosion resistance, flame retardancy, good insulation performance, no pollution, not easy to age, light weight, and convenient construction. The product performance is far superior to traditional asbestos cable ducts and ordinary PVC pipes. It is an ideal substitute for traditional power cable sheathing pipes. Moreover, PVC power pipes are an indispensable hardware product in people's daily lives, whether in life or in factory production.

[0003] In the production of PVC power pipes, pipe bending is one of the important processes. Existing mechanisms often lack auxiliary support and buffer protection for the pipes during the bending process, which causes the pipes to be damaged due to uneven stress during bending, reducing the product qualification rate. In addition, traditional mechanisms have a low degree of automation and require more manual intervention, which not only increases labor intensity but also affects production efficiency, failing to meet the requirements of modern large-scale production for high-quality and high-efficiency pipe bending operations.

[0004] Therefore, we proposed a pipe bending mechanism for PVC power pipe production to solve the above problems. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a pipe bending mechanism for PVC power pipe production, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A pipe bending mechanism for PVC power pipe production includes a base plate, a support mounted on the base plate, a positioning block on the right side of the support, and an inner bending die tightly fitted on the positioning block. A first electric push rod is mounted on the left side of the support, and a push plate is mounted on the piston rod of the first electric push rod. An outer bending die is tightly fitted on the push plate. A second electric push rod is mounted on the rear side of the base plate, and a fixing plate is mounted on the piston rod of the second electric push rod. An adjusting column head is tightly fitted on the fixing plate, and a long spring is fixed on the adjusting column head. A bracket is mounted on the right side of the base plate, and a PTC heater is mounted on the top of the bracket, with the PTC heater close to the inner bending die.

[0007] Furthermore, the inner bending die is provided with a square sleeve hole, and is fitted onto the positioning block through the square sleeve hole.

[0008] Furthermore, the bottom of the push plate is provided with a T-shaped slider, and the support is provided with a T-shaped groove, and is slidably connected to the push plate through the T-shaped groove and the T-shaped slider.

[0009] Furthermore, the push plate is provided with a first waist-shaped hole, and a first wing bolt is inserted through the outer bending die, with the head end of the first wing bolt fastened to the first waist-shaped hole.

[0010] Furthermore, the outer bending die and the inner bending die are positioned correspondingly, and pressure rollers are installed on both sides of the outer bending die via bearings.

[0011] Furthermore, the fixing plate is provided with a second oblong hole, and a second wing bolt is inserted through the adjusting column head, with the head end of the second wing bolt fastened to the second oblong hole.

[0012] Furthermore, the long spring is located on the support and is positioned between the outer bending die and the inner bending die.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a pipe bending mechanism for PVC power pipe production, which has the following advantages: This invention uses a first electric actuator to push the outer bending die and the inner bending die together, achieving stable clamping and bending of the pipe. The long spring on the adjusting column head can buffer and support the pipe during the bending process, preventing the pipe from cracking or excessively deforming due to excessive local stress. The use of electric drive components such as the first electric actuator and the second electric actuator reduces manual intervention and improves bending efficiency and operational safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial top view of the present invention; Figure 3 This is a partial side view of the present invention.

[0015] In the diagram: 1. Base plate; 2. Support; 3. Positioning block; 4. Inner bending die; 5. First electric push rod; 6. Push plate; 7. Outer bending die; 8. Second electric push rod; 9. Fixing plate; 10. Adjusting column head; 11. Long spring; 12. Bracket; 13. PTC heater; 14. Square sleeve hole; 15. T-shaped slider; 16. T-shaped groove; 17. First oblong hole; 18. First wing bolt; 19. Pressure roller; 20. Second oblong hole; 21. Second wing bolt. Detailed Implementation

[0016] 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.

[0017] Example like Figures 1-3 As shown in the figure, a PVC power pipe bending mechanism for production according to an embodiment of the present invention includes a base plate 1, a support 2 mounted on the base plate 1, a positioning block 3 on the right side of the support 2, and an inner bending die 4 tightly fitted on the positioning block 3; a first electric push rod 5 mounted on the left side of the support 2, and a push plate 6 mounted on the piston rod of the first electric push rod 5, with an outer bending die 7 fastened to the push plate 6; a second electric push rod 8 mounted on the rear side of the base plate 1, and a fixing plate 9 mounted on the piston rod of the second electric push rod 8; an adjusting column head 10 fastened to the fixing plate 9, and the adjusting column head 10... A long spring 11 is fixed in place. The outer bending die 7 and the inner bending die 4 are driven by the first electric push rod 5 to achieve stable clamping and bending of the pipe. The long spring 11 on the adjusting column head 10 can buffer and support the pipe during the bending process, so as to avoid cracks or excessive deformation of the pipe due to excessive local stress. Electric drive components such as the first electric push rod 5 and the second electric push rod 8 are used to reduce manual intervention, improve pipe bending efficiency and operation safety. A bracket 12 is installed on the right side of the base plate 1, and a PTC heater 13 is installed on the top of the bracket 12. The PTC heater 13 is close to the inner bending die 4.

[0018] like Figure 1 As shown, in some embodiments, the inner bending die 4 is provided with a square sleeve hole 14, and is fitted onto the positioning block 3 through the square sleeve hole 14. The square sleeve hole 14 is an assembly structure used for the installation and fixation between the inner bending die 4 and the positioning block 3.

[0019] like Figure 1 As shown, in some embodiments, the bottom of the push plate 6 is provided with a T-shaped slider 15, and the support 2 is provided with a T-shaped groove 16. The push plate 6 is slidably connected through the T-shaped groove 16 and the T-shaped slider 15. Through the cooperation between the T-shaped groove 16 and the T-shaped slider 15, the push plate 6 slides on the support 2 to ensure the stable movement of the push plate 6.

[0020] like Figure 1As shown, in some embodiments, the push plate 6 is provided with a first waist-shaped hole 17, and the outer bending die 7 is provided with a first wing bolt 18, and the head end of the first wing bolt 18 is fastened to the first waist-shaped hole 17. The cooperation between the first wing bolt 18 and the first waist-shaped hole 17 facilitates the assembly and disassembly of the outer bending die 7.

[0021] like Figure 1 As shown, in some embodiments, the outer bending die 7 and the inner bending die 4 are positioned correspondingly, and pressure rollers 19 are installed on both sides of the outer bending die 7 via bearings. The PVC power pipe to be bent (suitable for short pipe bending) is placed between the outer bending die 7 and the inner bending die 4. When the outer bending die 7 moves closer to the inner bending die 4, the PVC power pipe to be bent can be clamped and fixed by the pressure rollers 19 and the inner bending die 4. Then the outer bending die 7 continues to move, thereby performing the bending operation on the PVC power pipe.

[0022] like Figure 3 As shown, in some embodiments, the fixing plate 9 is provided with a second waist-shaped hole 20, and the adjusting column head 10 is provided with a second wing bolt 21, and the head end of the second wing bolt 21 is fastened to the second waist-shaped hole 20. Through the cooperation between the second wing bolt 21 and the second waist-shaped hole 20, it is convenient to disassemble and assemble the adjusting column head 10 and make fine adjustments to its height position.

[0023] like Figure 1 As shown, in some embodiments, the long spring 11 is located on the support 2 and between the outer bending die 7 and the inner bending die 4. When the PVC power pipe to be bent (suitable for short pipe bending) is placed between the outer bending die 7 and the inner bending die 4, the PVC power pipe needs to be fitted onto the long spring 11 that matches the inner diameter of the PVC power pipe to avoid the bending part from being concave due to the extrusion pressure during the bending process.

[0024] When using this device, the PVC power pipe to be bent (suitable for short pipe bending) is placed between the outer bending die 7 and the inner bending die 4. The PVC power pipe is then fitted onto a long spring 11 that matches the inner diameter of the PVC power pipe. The PTC heater 13 is used to heat the part to be bent to soften the PVC pipe (bending can indeed be achieved by heating at the appropriate temperature, usually 70-80℃, within which the PVC material softens and is easy to shape). Then, the first electric push rod 5 pushes the outer bending die 7 to engage with the inner bending die 4, achieving stable clamping and bending of the pipe. During the bending process, the long spring 11 on the adjusting column 10 acts as a buffer and support for the pipe, preventing cracks or excessive deformation due to excessive local stress. After the hot bending is completed, the outer bending die 7 retracts and resets, and the long spring 11 is pulled out of the pipe by the second electric push rod 8 (the long spring 11 only covers the part of the pipe to be bent). Then, the pipe can be removed.

[0025] In summary, by using the first electric actuator 5 to push the outer bending die 7 and the inner bending die 4 to cooperate, stable clamping and bending of the pipe can be achieved. The long spring 11 on the adjusting column head 10 can buffer and support the pipe during the bending process, preventing the pipe from cracking or excessively deforming due to excessive local stress. The use of electric drive components such as the first electric actuator 5 and the second electric actuator 8 reduces manual intervention and improves pipe bending efficiency and operational safety.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pipe bending mechanism for PVC power pipe production, comprising a base plate (1), characterized in that: A support (2) is installed on the base plate (1). A positioning block (3) is provided on the right side of the support (2), and an inner bending die (4) is tightly fitted on the positioning block (3). A first electric push rod (5) is installed on the left side of the support (2), and a push plate (6) is installed on the piston rod of the first electric push rod (5). An outer bending die (7) is tightly installed on the push plate (6). A second electric push rod (8) is installed on the rear side of the base plate (1), and a fixing plate (9) is installed on the piston rod of the second electric push rod (8). An adjusting column head (10) is tightly installed on the fixing plate (9), and a long spring (11) is fixed on the adjusting column head (10). A bracket (12) is installed on the right side of the base plate (1), and a PTC heater (13) is installed on the top of the bracket (12). The PTC heater (13) is close to the inner bending die (4).

2. The pipe bending mechanism for PVC power pipe production according to claim 1, characterized in that: The inner bending mold (4) is provided with a square sleeve hole (14), and is fitted onto the positioning block (3) through the square sleeve hole (14).

3. The pipe bending mechanism for PVC power pipe production according to claim 1, characterized in that: The bottom of the push plate (6) is provided with a T-shaped slider (15), and the support (2) is provided with a T-shaped groove (16), and is slidably connected to the push plate (6) through the T-shaped groove (16) and the T-shaped slider (15).

4. The pipe bending mechanism for PVC power pipe production according to claim 1, characterized in that: The push plate (6) is provided with a first waist-shaped hole (17), and the outer bending die (7) is provided with a first butterfly bolt (18), and the head end of the first butterfly bolt (18) is fastened to the first waist-shaped hole (17).

5. The pipe bending mechanism for PVC power pipe production according to claim 1, characterized in that: The outer bending die (7) is positioned corresponding to the inner bending die (4), and pressure rollers (19) are installed on both sides of the outer bending die (7) via bearings.

6. The pipe bending mechanism for PVC power pipe production according to claim 1, characterized in that: The fixing plate (9) is provided with a second waist-shaped hole (20), and a second butterfly bolt (21) is inserted through the adjusting column head (10), and the head end of the second butterfly bolt (21) is fastened to the second waist-shaped hole (20).

7. The pipe bending mechanism for PVC power pipe production according to claim 1, characterized in that: The long spring (11) is located on the support (2) and between the outer bending die (7) and the inner bending die (4).

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