Flaring device for plastic pipe production

Abstract

The utility model relates to the technical field of plastic pipe production, in particular to a flaring device for plastic pipe production, which comprises a fixing frame, a flaring column and a heating box mounted on the right side of the upper end of the fixing frame, a lifting plate is arranged on the right side of the fixing frame, and the upper end face of the lifting plate is slidably connected with a positioning frame through a sliding rail. A positioning block matched with the interior of the positioning frame is arranged in the positioning frame, and the flaring column is fixedly connected to the upper end of the left side of the positioning block. An extrusion block is made to be aligned with an extrusion hole, then a threaded rod is made to rotate in a nut through a first rotating handle, and then the extrusion block is conveniently driven to move downwards while rotating, enter the extrusion hole and extrude the lower end of the inner wall of the extrusion hole, so that a positioning block and a flaring column are prevented from moving up and down; and therefore, the characteristic that flaring columns of different models can be replaced conveniently is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe production, in particular to a port expanding device used for plastic pipe production. Background Art

[0002] Plastic parts are widely used in every field of modern life. Plastic pipes have the advantages of small water flow loss, energy saving and environmental protection. When plastic pipes are used, they often need kneading, extrusion, shaping, pulling and expanding processes. The expansion is mainly completed by the expansion device. Therefore, a expansion device for plastic pipe production is needed.

[0003] according to Figure 1 As shown, the existing expanding device for plastic pipe production generally includes two liftable support frames 26, a heating box 3, a moving frame 27, an expanding column 2 fixedly connected to the moving frame 27 by multiple bolts 28, and a cylinder body 29. Its working principle is generally as follows: first, the plastic pipe is placed on the upper ends of the two liftable support frames 26, and then one end of the plastic pipe is pushed into the interior of the heating box 3 to heat it. The heated plastic pipe has plasticity, and then the moving frame 27 and the expanding column 2 are driven to move by the cylinder body 29, and the expanding column 2 enters the interior of the pipe to complete the expanding process.

[0004] The disadvantage of the existing expanding device for plastic pipe production is that, due to the difference in the inner diameter of the pipe, when expanding different pipes, the expanding column 2 often needs to be replaced by disassembling and assembling multiple bolts 28, which makes it inconvenient to replace the expanding columns 2 of different models. Utility Model Content

[0005] The utility model aims to provide a flaring device for the production of plastic pipes, which has the characteristic of being easy to replace flaring columns of different models.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a expanding device for the production of plastic pipes, comprising a fixing frame, a expanding column and a heating box installed on the upper right side of the fixing frame, a lifting plate is arranged on the right side of the fixing frame, the upper end surface of the lifting plate is slidably connected to a positioning frame through a slide rail, a positioning block matching the interior of the positioning frame is arranged inside the positioning frame, the expanding column is fixedly connected to the upper end of the left side of the positioning block, an extrusion hole is provided on the upper end surface of the positioning block, an extrusion block is arranged inside the extrusion hole, a threaded rod is fixedly connected to the upper end of the extrusion block, a nut is threadedly connected to the outer wall of the threaded rod, a cross plate is fixedly connected to the outer wall of the nut, a rotating rod is fixedly connected to the right side of the lower end surface of the cross plate, and the lower end of the rotating rod is rotatably connected to the right side of the upper end surface of the positioning frame through a turntable.

[0007] In order to facilitate the fixation of plastic pipes, as a preferred expansion device for plastic pipe production of the utility model, the lower end of the inner wall of the fixing frame is fixedly connected to two fixed clamps distributed on the left and right, and a movable clamp is arranged above the two fixed clamps.

[0008] In order to facilitate the movement of the two movable clamps, as a preferred expansion device for plastic pipe production of the utility model, a first cylinder mounting plate is provided at the upper end of the opposite side of the inner wall of the fixed frame, and a first cylinder is installed on the upper end of the first cylinder mounting plate. The output end of the first cylinder extends to the lower end of the first cylinder mounting plate and is fixedly connected to a movable plate, and the upper ends of the two movable clamps are respectively fixedly connected to the left and right sides of the lower end surface of the movable plate.

[0009] In order to facilitate the adjustment of the position of the expansion column according to the inner diameter of the plastic pipe, as a preferred expansion device for plastic pipe production of the utility model, the lower end of the right side of the fixed frame is fixedly connected to a second cylinder mounting plate, and the lower end of the second cylinder mounting plate is fixedly connected to two second cylinders distributed on the left and right, and the output ends of the two second cylinders are respectively fixedly connected to the left and right sides of the lower end surface of the lifting plate.

[0010] In order to facilitate the movement of the expanding column and thus facilitate the expanding of the plastic pipe, as a preferred expanding device for plastic pipe production of the utility model, the right end of the lifting plate is fixedly connected to a vertical plate, the right end face of the vertical plate is fixedly connected to an electric cylinder, and the output end of the electric cylinder extends to the left side of the vertical plate and is fixedly connected to the right end face of the positioning frame.

[0011] In order to facilitate the rotation of the threaded rod, as a preferred expansion device for plastic pipe production of the utility model, the upper end of the threaded rod is fixedly connected with a first rotating handle.

[0012] In order to facilitate the rotation of the rotating rod, as a preferred embodiment of the expanding device for plastic pipe production of the utility model, the right end surface of the rotating rod is fixedly connected with a second rotating handle.

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

[0014] When the utility model is used, when the flared column is to be installed, the positioning block is first inserted into the interior of the positioning frame. Since the interior of the positioning frame matches the positioning block, it is convenient to limit the front, rear, left and right positions of the positioning block. Then, the second rotating handle is used to rotate the rotating rod along with the rotating disk, so as to facilitate the rotation of the cross plate, the nut, the threaded rod and the extrusion block, and align the extrusion block with the extrusion hole. Then, the first rotating handle is used to rotate the threaded rod inside the nut, so as to facilitate the extrusion block to move downward while rotating, enter the interior of the extrusion hole, and squeeze the lower end of the inner wall thereof to prevent the positioning block and the flared column from moving up and down. When the flared column is to be disassembled, only the steps opposite to the above steps need to be performed, so as to achieve the characteristic of facilitating the replacement of flared columns of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front cross-sectional view of a prior art expanding device for producing plastic pipes;

[0016] Figure 2 It is a front cross-sectional structural diagram of the utility model;

[0017] Figure 3 This is a diagram of the external connection structure between the horizontal plate and the rotating rod of the utility model;

[0018] Figure 4 It is a right side cross-sectional structural diagram of the lifting plate and the positioning frame of the utility model;

[0019] Figure 5 It is a right view structural diagram of the fixed splint of the utility model.

[0020] In the figure: 1. fixed frame; 2. flared column; 3. heating box; 4. lifting plate; 5. slide rail; 6. positioning frame; 7. positioning block; 8. extrusion hole; 9. extrusion block; 10. threaded rod; 11. nut; 12. cross plate; 13. rotating rod; 14. turntable; 15. fixed clamping plate; 16. first cylinder mounting plate; 17. first cylinder; 18. moving plate; 19. moving clamping plate; 20. second cylinder mounting plate; 21. second cylinder; 22. vertical plate; 23. electric cylinder; 24. first rotating handle; 25. second rotating handle; 26. liftable support frame; 27. moving frame; 28. bolt; 29. ​​cylinder body. DETAILED DESCRIPTION

[0021] See also Figures 1 to 5A flaring device for the production of plastic pipes comprises a fixing frame 1, a flaring column 2 and a heating box 3 installed on the upper right side of the fixing frame 1, a lifting plate 4 is arranged on the right side of the fixing frame 1, and the upper end surface of the lifting plate 4 is slidably connected with a positioning frame 6 through a slide rail 5, and a positioning block 7 matching the interior of the positioning frame 6 is arranged inside the positioning frame 6, the flaring column 2 is fixedly connected to the upper end of the left side of the positioning block 7, an extrusion hole 8 is opened on the upper end surface of the positioning block 7, an extrusion block 9 is arranged inside the extrusion hole 8, a threaded rod 10 is fixedly connected to the upper end of the extrusion block 9, a nut 11 is threadedly connected to the outer wall of the threaded rod 10, a cross plate 12 is fixedly connected to the outer wall of the nut 11, a rotating rod 13 is fixedly connected to the right side of the lower end surface of the cross plate 12, and the lower end of the rotating rod 13 is rotatably connected to the right side of the upper end surface of the positioning frame 6 through a turntable 14.

[0022] In this embodiment: when the flared column 2 is to be installed, the positioning block 7 is first inserted into the interior of the positioning frame 6. Since the interior of the positioning frame 6 matches the positioning block 7, it is convenient to limit the front, rear, left and right positions of the positioning block 7. Then the rotating rod 13 is rotated along with the rotating disk 14, so as to facilitate the rotation of the cross plate 12, the nut 11, the threaded rod 10 and the extrusion block 9, and align the extrusion block 9 with the extrusion hole 8. Then the threaded rod 10 is rotated inside the nut 11, so as to facilitate the extrusion block 9 to move downward while rotating, and enter the interior of the extrusion hole 8, and squeeze the lower end of the inner wall to prevent the positioning block 7 and the flared column 2 from moving up and down. When the flared column 2 is to be disassembled, only the steps opposite to the above are required, so as to achieve the characteristic of facilitating the replacement of flared columns 2 of different models.

[0023] As a technical optimization solution of the utility model, the lower end of the inner wall of the fixing frame 1 is fixedly connected to two fixed clamping plates 15 distributed on the left and right, and a movable clamping plate 19 is arranged above the two fixed clamping plates 15.

[0024] In this embodiment, when the plastic pipe located at the upper ends of the two fixed clamps 15 is to be expanded, the two movable clamps 19 are moved downward, thereby facilitating the fixing of the plastic pipe to prevent it from moving during expansion.

[0025] As a technical optimization scheme of the utility model, a first cylinder mounting plate 16 is provided at the upper end of the opposite side of the inner wall of the fixed frame 1, and a first cylinder 17 is installed at the upper end of the first cylinder mounting plate 16. The output end of the first cylinder 17 extends to the lower end of the first cylinder mounting plate 16 and is fixedly connected to a movable plate 18. The upper ends of the two movable clamping plates 19 are respectively fixedly connected to the left and right sides of the lower end surface of the movable plate 18.

[0026] In this embodiment: the first cylinder mounting plate 16 is provided to facilitate installation of the first cylinder 17 , and the first cylinder 17 is provided to facilitate driving the moving plate 18 to move downward.

[0027] As a technical optimization scheme of the utility model, the lower end of the right side of the fixed frame 1 is fixedly connected to the second cylinder mounting plate 20, and the lower end of the second cylinder mounting plate 20 is fixedly connected to two second cylinders 21 distributed on the left and right, and the output ends of the two second cylinders 21 are respectively fixedly connected to the left and right sides of the lower end surface of the lifting plate 4.

[0028] In this embodiment: a second cylinder mounting plate 20 is provided to facilitate the installation of two second cylinders 21, and two second cylinders 21 are provided to drive the lifting plate 4, the positioning frame 6, the flaring column 2, and the positioning block 7 to move up and down, so as to adjust the position of the flaring column 2 according to the inner diameter of the plastic pipe.

[0029] As a technical optimization solution of the utility model, the right end of the lifting plate 4 is fixedly connected to the vertical plate 22, and the right end face of the vertical plate 22 is fixedly connected to the electric cylinder 23. The output end of the electric cylinder 23 extends to the left side of the vertical plate 22 and is fixedly connected to the right end face of the positioning frame 6.

[0030] In this embodiment: a vertical plate 22 is provided to facilitate installation of the electric cylinder 23 , and the electric cylinder 23 is provided to facilitate driving the positioning frame 6 , the flaring column 2 , and the positioning block 7 to slide to the left, thereby facilitating flaring of the plastic pipe through the flaring column 2 .

[0031] As a technical optimization solution of the present utility model, a first rotating handle 24 is fixedly connected to the upper end of the threaded rod 10 .

[0032] In this embodiment, a first rotating handle 24 is provided to facilitate the rotation of the threaded rod 10 .

[0033] As a technical optimization solution of the present utility model, a second rotating handle 25 is fixedly connected to the right end surface of the rotating rod 13 .

[0034] In this embodiment, a second rotating handle 25 is provided to facilitate the rotation of the rotating rod 13 .

[0035] Working principle: When the flared column 2 is to be installed, the positioning block 7 is first inserted into the interior of the positioning frame 6. Since the interior of the positioning frame 6 matches the positioning block 7, it is convenient to limit the front, rear, left and right positions of the positioning block 7. Then, the second rotating handle 25 is used to rotate the rotating rod 13 along with the rotating disk 14, so as to drive the cross plate 12, the nut 11, the threaded rod 10 and the extrusion block 9 to rotate, and the extrusion block 9 is aligned with the extrusion hole 8. Then, the first rotating handle 24 is used to rotate the threaded rod 10 inside the nut 11, so as to facilitate the rotation of the cross plate 12, the nut 11, the threaded rod 10 and the extrusion block 9. The movable extrusion block 9 moves downward while rotating, and enters the interior of the extrusion hole 8, and squeezes the lower end of its inner wall to prevent the positioning block 7 and the flaring column 2 from moving up and down. When the flaring column 2 is to be disassembled, only the steps opposite to the above are required, thereby achieving the characteristic of facilitating the replacement of flaring columns 2 of different models. When working, first, the two second cylinders 21 are used to drive the lifting plate 4, the positioning frame 6, the flaring column 2, and the positioning block 7 to move up and down, thereby facilitating the adjustment of the position of the flaring column 2 according to the inner diameter of the plastic pipe. The plastic pipe is then placed on the upper ends of the two fixed clamps 15, and one end of it is pushed into the interior of the heating box 3 to heat it. The heated plastic pipe has plasticity. One end of it is then pushed into the right side of the heating box 3, and the first cylinder 17 drives the movable plate 18 and the two movable clamps 19 to move downward to fix the plastic pipe. Subsequently, the electric cylinder 23 drives the positioning frame 6, the flaring column 2, and the positioning block 7 to slide to the left, thereby facilitating the flaring of the plastic pipe through the flaring column 2.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flaring device for use in the production of plastic pipes, comprising a fixing frame (1), a flaring column (2), and a heating box (3) mounted on the upper right side of the fixing frame (1), Features: A lifting plate (4) is arranged on the right side of the fixing frame (1), and the upper end surface of the lifting plate (4) is slidably connected to a positioning frame (6) through a slide rail (5), and a positioning block (7) matching the interior of the positioning frame (6) is arranged inside the positioning frame (6), and the flaring column (2) is fixedly connected to the upper end of the left side of the positioning block (7), and an extrusion hole (8) is opened on the upper end surface of the positioning block (7), and an extrusion block (9) is arranged inside the extrusion hole (8), and a threaded rod (10) is fixedly connected to the upper end of the extrusion block (9), and a nut (11) is threadedly connected to the outer wall of the threaded rod (10), and a cross plate (12) is fixedly connected to the outer wall of the nut (11), and a rotating rod (13) is fixedly connected to the right side of the lower end surface of the cross plate (12), and the lower end of the rotating rod (13) is rotatably connected to the right side of the upper end surface of the positioning frame (6) through a rotating disk (14).

2. A flaring device for plastic pipe production according to claim 1, Features: The lower end of the inner wall of the fixed frame (1) is fixedly connected to two fixed clamping plates (15) distributed on the left and right, and a movable clamping plate (19) is arranged above the two fixed clamping plates (15).

3. A flaring device for plastic pipe production according to claim 2, Features: A first cylinder mounting plate (16) is provided at the upper end of the inner wall of the fixed frame (1) on the opposite side, a first cylinder (17) is mounted on the upper end of the first cylinder mounting plate (16), an output end of the first cylinder (17) extends to the lower end of the first cylinder mounting plate (16) and is fixedly connected to a movable plate (18), and the upper ends of the two movable clamping plates (19) are respectively fixedly connected to the left and right sides of the lower end surface of the movable plate (18).

4. A flaring device for plastic pipe production according to claim 1, Features: A second cylinder mounting plate (20) is fixedly connected to the lower end of the right side of the fixing frame (1), and two second cylinders (21) distributed on the left and right are fixedly connected to the lower end of the second cylinder mounting plate (20), and the output ends of the two second cylinders (21) are respectively fixedly connected to the left and right sides of the lower end surface of the lifting plate (4).

5. A flaring device for plastic pipe production according to claim 1, Features: The right end of the lifting plate (4) is fixedly connected to a vertical plate (22), the right end surface of the vertical plate (22) is fixedly connected to an electric cylinder (23), and the output end of the electric cylinder (23) extends to the left side of the vertical plate (22) and is fixedly connected to the right end surface of the positioning frame (6).

6. A expanding device for plastic pipe production according to claim 1, Features: The upper end of the threaded rod (10) is fixedly connected to a first rotating handle (24).

7. A expanding device for plastic pipe production according to claim 1, Features: The right end surface of the rotating rod (13) is fixedly connected with a second rotating handle (25).

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