Flaring machine for PVC pipes

Abstract

The utility model discloses a PVC (polyvinyl chloride) pipe flaring machine which comprises a bearing frame, a flaring assembly and a clamp, one side of the top surface of the bearing frame is movably connected with a movable frame through a first lead screw module, the other side of the top surface of the bearing frame is fixedly connected with a fixed frame, and a driving motor is fixedly mounted on the surface of one side of the movable frame. According to the flaring device, the first pulley and the second pulley are installed on the flaring assembly, the friction force between the PVC pipe and the flaring assembly in the flaring process can be effectively reduced, flaring resistance is reduced, the PVC pipe is not prone to being damaged in the flaring process, the attractiveness of the PVC pipe is guaranteed, and the flaring device is simple in structure, low in cost, high in practicability and worthy of popularization. The detachable protective pad is installed on the clamp, the protective pad is bonded and fixed through the hook-and-loop fastener hook face and the hook-and-loop fastener loop face, the protective pad can be detached and replaced easily, operation is easy and convenient, and the maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of flaring devices, in particular to a flaring machine for PVC pipes. Background Art

[0002] PVC pipes, i.e., rigid polyvinyl chloride pipes, are extruded by hot pressing after being compounded with polyvinyl chloride resin, stabilizers, lubricants, etc. They are the earliest plastic pipes to be developed and applied.

[0003] The existing technologies have the following problems:

[0004] After a large number of searches, it is found that the Chinese Patent Publication No.: CN220638896U discloses a pipe flaring device for PVC pipe production, including a support, a support rod welded on the support, a support cylinder welded on the support rod, a clamping plate slidably connected in the support cylinder, an adjusting mechanism arranged on the clamping plate, a hole expanding mechanism arranged on the support, an installation cylinder arranged on the hole expanding mechanism, and a heating strip arranged in the installation cylinder. The utility model drives the sliding cylinder to move through a cylinder, drives the square rod to rotate through a motor, further makes the installation plate drive the hole expanding plate to rotate, and heats through the displacement of the heating strip, so that the PVC pipe orifice is softened, facilitating hole expansion, and avoiding the deformation of the PVC pipe orifice caused by continuous heating.

[0005] However, the above patent still has problems in actual use. More obviously, the friction between the PVC pipe and the installation cylinder and the expansion plate is large during the flaring process, the resistance during the flaring process of the PVC pipe is large, and it is easy to damage the PVC pipe during the flaring process, making it difficult to ensure the aesthetics of the PVC pipe.

[0006] Therefore, we propose a flaring machine for PVC pipes to solve the above drawbacks. Content of the Utility Model

[0007] The purpose of the utility model is to provide a flaring machine for PVC pipes to solve the shortcomings existing in the prior art.

[0008] To achieve the above purpose, the utility model adopts the following technical scheme: A flaring machine for PVC pipes, including a bearing frame, a flaring assembly and a fixture. One side of the top surface of the bearing frame is movably connected with a movable frame through a first lead screw module. The other side of the top surface of the bearing frame is fixedly connected with a fixed frame. A driving motor is fixedly installed on one side surface of the movable frame, and a flaring assembly is installed at the output end of the driving motor. A support cylinder is installed on the fixed frame, a second lead screw module is installed on the inner wall of the support cylinder, and a fixture is installed on the second lead screw module;

[0009] The flaring assembly includes an installation cylinder, a flaring cylinder, a first pulley and a second pulley. One side surface of the installation cylinder is fixedly connected to the output end of the driving motor. The inner wall of the installation cylinder is provided with a flaring cylinder, and the outer wall of the flaring cylinder is rotatably connected to a first pulley. The inner wall of the installation cylinder is rotatably connected to a second pulley;

[0010] The fixture includes a support plate, a hook surface of Velcro, a loop surface of Velcro and a protective pad. One side surface of the support plate is connected to the second lead screw module. The other side surface of the support plate is adhered with the hook surface of Velcro, and the other side surface of the hook surface of Velcro is adhered with the loop surface of Velcro. And the side surface of the loop surface of Velcro away from the hook surface of Velcro is adhered with a protective pad.

[0011] Preferably, a control panel is fixedly installed on the surface of the carrier frame, and the control panel is electrically connected to the driving motor, the first lead screw module and the second lead screw module through wires.

[0012] Preferably, the lead screw in the second lead screw module is a double-threaded lead screw.

[0013] Preferably, a plurality of first pulleys are provided, and the plurality of first pulleys are annularly and arrayedly distributed on the outer wall of the flaring cylinder.

[0014] Preferably, a plurality of second pulleys are provided, and the plurality of second pulleys are annularly and arrayedly distributed on the inner wall of the installation cylinder.

[0015] Preferably, a plurality of second lead screw modules are provided, and the plurality of second lead screw modules are annularly and arrayedly distributed on the inner wall of the support cylinder.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, by installing a first pulley and a second pulley on the flaring assembly, the friction between the PVC pipe and the flaring assembly during the flaring process can be effectively reduced, the flaring resistance can be reduced, the PVC pipe is not easily damaged during the flaring process, the aesthetics of the PVC pipe can be ensured, and the structure is simple, the cost is low, and the practicability is strong, which is worthy of popularization.

[0018] 2. In the present utility model, by installing a detachable protective pad on the fixture, the protective pad is adhesively fixed through the hook surface of Velcro and the loop surface of Velcro, which is beneficial to disassembling and replacing the protective pad, and the operation is simple and convenient, and the maintenance cost is low. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a flaring machine for PVC pipes proposed by the present invention;

[0021] Figure 2 Side view of the flaring assembly;

[0022] Figure 3 Structural schematic diagram of the fixture;

[0023] Figure 4 For Figure 1 Structural schematic diagram of the flaring assembly in

[0024] Legend description:

[0025] 1. Carrier frame; 2. First lead screw module; 3. Movable frame; 4. Fixed frame; 5. Driving motor; 6. Flaring assembly; 61. Installation cylinder; 62. Expansion cylinder; 63. First pulley; 64. Second pulley; 7. Support cylinder; 8. Second lead screw module; 9. Fixture; 91. Support plate; 92. Hook surface of magic tape; 93. Fuzzy surface of magic tape; 94. Protective pad; 10. Control panel. Specific implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Please refer to Figures 1-4 , a flaring machine for PVC pipes, including a carrier frame 1, a flaring assembly 6 and a fixture 9. One side of the top surface of the carrier frame 1 is movably connected with a movable frame 3 through a first lead screw module 2. The other side of the top surface of the carrier frame 1 is fixedly connected with a fixed frame 4. A driving motor 5 is fixedly installed on one side surface of the movable frame 3, and a flaring assembly 6 is installed at the output end of the driving motor 5. A support cylinder 7 is installed on the fixed frame 4, a second lead screw module 8 is installed on the inner wall of the support cylinder 7, and a fixture 9 is installed on the second lead screw module 8;

[0029] The flaring assembly 6 includes an installation cylinder 61, an expansion cylinder 62, a first pulley 63 and a second pulley 64. One side surface of the installation cylinder 61 is fixedly connected with the output end of the driving motor 5. The expansion cylinder 62 is installed on the inner wall of the installation cylinder 61, and the outer wall of the expansion cylinder 62 is rotatably connected with the first pulley 63. The second pulley 64 is rotatably connected to the inner wall of the installation cylinder 61;

[0030] The fixture 9 includes a support plate 91, a hook surface of Velcro 92, a loop surface of Velcro 93, and a protective pad 94. One side surface of the support plate 91 is connected to the second lead screw module 8. The hook surface of Velcro 92 is adhesively bonded to the other side surface of the support plate 91, and the loop surface of Velcro 93 is adhesively bonded to the other side surface of the hook surface of Velcro 92. Moreover, the protective pad 94 is adhesively bonded to the side surface of the loop surface of Velcro 93 away from the hook surface of Velcro 92. During use, multiple second lead screw modules 8 are used to clamp the PVC pipe, making it convenient for the device to clamp PVC pipes with different diameters. Then, the first lead screw module 2 is started to drive the movable frame 3 to move to the right, and the PVC pipe is inserted between the mounting cylinder 61 and the expansion cylinder 62. The drive motor 5 drives the mounting cylinder 61 to rotate, driving the expansion cylinder 62 to rotate. At the same time, the first lead screw module 2 drives the movable frame 3 to continue moving to the right, so that the expansion cylinder 62 enters the PVC pipe opening and rotates, and heating is carried out through the displacement of the heating strip, softening the PVC pipe opening for easy reaming, and avoiding deformation of the PVC pipe opening caused by continuous heating. By installing the first pulley 63 and the second pulley 64 on the reaming assembly 6, the friction between the PVC pipe and the reaming assembly 6 during the reaming process can be effectively reduced, the reaming resistance can be reduced, and the PVC pipe is not easily damaged during the reaming process, ensuring the aesthetics of the PVC pipe. Moreover, the structure is simple, the cost is low, and the practicability is strong, which is worthy of promotion. Secondly, by installing a detachable protective pad 94 on the fixture 9, the protective pad 94 is adhesively fixed through the hook surface of Velcro 92 and the loop surface of Velcro 93, which is conducive to disassembling and replacing the protective pad 94, and the operation is simple and convenient, and the maintenance cost is low.

[0031] In this embodiment: A control panel 10 is fixedly installed on the surface of the carrier 1, and the control panel 10 is electrically connected to the drive motor 5, the first lead screw module 2, and the second lead screw module 8 through wires.

[0032] Specifically, it is a common circuit connection structure and will not be elaborated here.

[0033] In this embodiment: The lead screw in the second lead screw module 8 is a double-start lead screw.

[0034] Specifically, the position of the fixture 9 can be adjusted to meet the clamping and fixing of the pipe.

[0035] In this embodiment: There are multiple first pulleys 63, and the multiple first pulleys 63 are annularly arrayed on the outer wall of the expansion cylinder 62.

[0036] Specifically, the friction between the PVC pipe and the expansion cylinder 62 is reduced.

[0037] In this embodiment: There are multiple second pulleys 64, and the multiple second pulleys 64 are annularly arrayed on the inner wall of the mounting cylinder 61.

[0038] Specifically, the friction between the PVC pipe and the installation cylinder 61 is reduced.

[0039] In this embodiment: There are multiple second lead screw modules 8, and the multiple second lead screw modules 8 are annularly and arrayedly distributed on the inner wall of the support cylinder 7.

[0040] Specifically, the clamping stability of the PVC pipe is improved, and it is not easy to cause the pipe to shake.

[0041] In this embodiment: The controller is of an existing structure, and the control circuit can be realized by simple programming by those skilled in the art. It belongs to the common knowledge in the field. Only its use is carried out without modification, so the control method and circuit connection will not be described in detail.

[0042] Working principle: During use, multiple second lead screw modules 8 are used to clamp the PVC pipe, so that the device is convenient for clamping PVC pipes with different diameters. Then, the first lead screw module 2 is started to drive the movable frame 3 to move left and right, and the PVC pipe is inserted between the installation cylinder 61 and the expansion cylinder 62. The drive motor 5 drives the installation cylinder 61 to rotate, driving the expansion cylinder 62 to rotate. At the same time, the first lead screw module 2 drives the movable frame 3 to continue moving to the right, so that the expansion cylinder 62 enters the PVC pipe orifice to rotate, and heating is carried out through the displacement of the heating strip, so that the PVC pipe orifice is softened, which is convenient for reaming, and it is avoided that the continuous heating causes the deformation of the PVC pipe orifice. By installing the first pulley 63 and the second pulley 64 on the reaming assembly 6, the friction between the PVC pipe and the reaming assembly 6 during the reaming process can be effectively reduced, the reaming resistance is reduced, and it is not easy to damage the PVC pipe during the reaming process, ensuring the aesthetics of the PVC pipe. Moreover, the structure is simple, the cost is low, and the practicability is strong, which is worthy of popularization. Secondly, by installing a detachable protective pad 94 on the fixture 9, the protective pad 94 is adhesively fixed through the hook surface 92 of the magic tape and the loop surface 93 of the magic tape, which is beneficial to the disassembly and replacement of the protective pad 94, and the operation is simple and convenient, and the maintenance cost is low.

[0043] It should be noted that: The model specifications of the drive motor 5, the first lead screw module 2 and the second lead screw module 8 need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0044] The power supply and principle of the drive motor 5, the first lead screw module 2 and the second lead screw module 8 are clear to those skilled in the art, and will not be described in detail here.

[0045] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A PVC pipe expanding machine, comprising a carrier frame (1), an expanding assembly (6) and a clamp (9), characterized in that: One side of the top surface of the carrier frame (1) is movably connected to a movable frame (3) via a first screw module (2), and the other side of the top surface of the carrier frame (1) is fixedly connected to a fixed frame (4), a driving motor (5) is fixedly mounted on one side surface of the movable frame (3), and an expansion assembly (6) is mounted on the output end of the driving motor (5), a support tube (7) is mounted on the fixed frame (4), and a second screw module (8) is mounted on the inner wall of the support tube (7), and a clamp (9) is mounted on the second screw module (8); The flaring assembly (6) comprises a mounting tube (61), an expansion tube (62), a first pulley (63) and a second pulley (64); a side surface of the mounting tube (61) is fixedly connected to the output end of the driving motor (5); the expansion tube (62) is mounted on the inner wall of the mounting tube (61); the outer wall of the expansion tube (62) is rotatably connected to the first pulley (63); and the inner wall of the mounting tube (61) is rotatably connected to the second pulley (64); The clamp (9) comprises a support plate (91), a Velcro hook surface (92), a Velcro fleece surface (93) and a protective pad (94); one side surface of the support plate (91) is connected to the second screw module (8); the other side surface of the support plate (91) is bonded with the Velcro hook surface (92); the other side surface of the Velcro hook surface (92) is bonded with the Velcro fleece surface (93); and the side surface of the Velcro fleece surface (93) away from the Velcro hook surface (92) is bonded with the protective pad (94).

2. A PVC pipe expanding machine according to claim 1, characterized in that: A control panel (10) is fixedly mounted on the surface of the carrier frame (1), and the control panel (10) is electrically connected to the drive motor (5), the first lead screw module (2) and the second lead screw module (8) via wires.

3. A PVC pipe expanding machine according to claim 1, characterized in that: The screw in the second screw module (8) is a positive and negative thread screw.

4. A PVC pipe expanding machine according to claim 1, characterized in that: A plurality of the first pulleys (63) are provided, and the plurality of first pulleys (63) are distributed in a circular array on the outer wall of the expansion cylinder (62).

5. A PVC pipe expanding machine according to claim 1, characterized in that: A plurality of the second pulleys (64) are provided, and the plurality of second pulleys (64) are distributed in a circular array on the inner wall of the mounting cylinder (61).

6. A PVC pipe expanding machine according to claim 1, characterized in that: A plurality of the second screw modules (8) are provided, and the plurality of second screw modules (8) are distributed in a circular array on the inner wall of the support tube (7).

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