Pipe bending device

Abstract

The utility model belongs to the technical field of PFA plastic pipes, and particularly relates to a pipe bending device which comprises a limiting disc, a plurality of scale marks are carved on the top side of the limiting disc at equal intervals, a positioning block is installed at the other end of an arc-shaped groove in a sliding mode, a groove is formed in the positioning block, and a movable rod penetrates through the positioning block and is installed in the groove in a sliding mode. An electrode plate is assembled at one end of the movable rod, an electrode slice is installed on the inner wall of the top side of the groove, and a spring is fixedly connected between the groove and the electrode plate; when the bent pipe rotates to a set angle, the sliding rod makes contact with the electrode plate and pushes the electrode plate and the movable rod to slide towards the interior of the groove, the spring is compressed, when the electrode plate makes contact with the cambered surface of the electrode plate, an electric signal is generated and transmitted to the control panel, the control panel controls the driving motor to be turned off, and the driving motor drives the bent pipe to rotate. The pipe bending action is stopped, and accurate control over the pipe bending angle is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PFA plastic pipe technical field, specifically a pipe bending device. BACKGROUND

[0002] The full name of PFA plastic pipe is perfluoroalkoxy resin plastic pipe, in its production process, through pipe bending operation, pipeline can flexibly bypass obstacles, along the appropriate route extends, thereby realizes the intercommunication between material source and use point or different equipment, therefore needs to use a pipe bending device.

[0003] A kind of pipe bending machine is disclosed in one Chinese patent with authorization announcement number CN218395437U, including pipe bending wheel, pipe bending wheel is fixed in the inside one side of fixed groove, the top surface and bottom surface of pipe bending wheel are respectively equipped with bearing body;The top surface and bottom surface of rotating plate are respectively provided with through hole, the outer ring of bearing body is fixedly installed in the inside of the through hole;Positioning assembly, positioning assembly is arranged in one side of the rotating plate, for positioning pipeline;Staff puts pipeline into the inside of rotating plate, by setting hydraulic cylinder, after pipeline is put into the inside of rotating plate, positioning plate is moved forward by hydraulic cylinder extension and retraction shaft and pushes, make positioning plate make pipeline close to pipe bending wheel, save the positioning time of staff, improve positioning efficiency.

[0004] But the pipe bending machine still has some problems, cannot accurately control the bending angle of plastic pipe, to cause the bending angle of plastic pipe not to meet the design requirement, increase the scrap rate of plastic pipe, cause raw material waste;Therefore, aiming at the above problems, a pipe bending device is proposed. UTILITY MODEL CONTENT

[0005] In order to make up for the deficiencies of the prior art, solve the problems raised in the background art, the utility model provides a pipe bending device.

[0006] The utility model discloses a technical scheme that solves its technical problem is adopted: the utility model discloses a kind of pipe bending device, including workbench, the top of the workbench is installed with limit disc, the top side of the limit disc is equidistantly inscribed with several scale lines, arc slot is opened in the inside of the limit disc, limit rod is slidably installed in the inside of one end of the arc slot, indicating needle is installed on the outside of the limit rod, positioning block is slidably installed in the other end of the arc slot, recess is opened in the inside of the positioning block, movable rod is slidably installed in the inside of the recess, electrode plate is assembled in the one end of the movable rod, electrode piece is installed on the top side inner wall of the recess, spring is fixedly connected between the recess and the electrode plate, the spring is sleeved on the outside of the movable rod, several limit holes are equidistantly opened in the inside of the side wall of the limit disc, limit screw is rotatably installed in the inside of the limit hole, the one end of the limit screw is tightly connected with the positioning block, the outer arc surface of electrode piece is tangent when the electrode plate is operated, the angle of pipe bending is accurately controlled and measured, and the processing quality of plastic pipe is improved.

[0007] Preferably, the top side of the workbench is provided with an L-shaped bracket, the top side of the L-shaped bracket is provided with a supporting column, the outer side of the supporting column is provided with a bending wheel, and the limit disc is fixedly installed on the top side of the supporting column, so as to provide a stable installation platform for the bending wheel and ensure the smooth operation of pipe bending.

[0008] Preferably, the top side of the workbench is provided with a driving motor, the output end of the driving motor is provided with a connecting plate, one end of the connecting plate is provided with a sliding rod, the top side of the workbench is provided with a sliding groove, the bottom end of the sliding rod is slidably installed in the inside of the sliding groove, and the top end of the sliding rod is provided with a supporting frame, so as to facilitate pipe bending operation and improve work efficiency.

[0009] Preferably, two rectangular grooves are symmetrically formed on the two sides of the supporting frame, a sliding block is slidably installed in the inside of the rectangular groove, a mounting frame is fixedly connected between the two sides of the sliding block, an auxiliary wheel is cooperatively installed in the inside of the mounting frame through a pin shaft, a threaded rod is rotatably installed on one side of the supporting frame, a handle is fixedly connected to one end of the threaded rod, and the other end of the threaded rod is rotatably installed in the inside of the mounting frame, so as to facilitate the adjustment of the distance between the auxiliary wheel and the bending wheel and adapt to pipe bending operation of pipes of different sizes.

[0010] Preferably, a supporting seat is installed at the top side edge of the workbench, the top side of the supporting seat is arc-shaped, a fixing frame is installed on the top side of the supporting seat, a telescopic rod is installed on the top side of the fixing frame, and a fixed clamping plate is installed on the acting end of the telescopic rod, so as to firmly fix the pipe and prevent the pipe from moving during pipe bending.

[0011] Preferably, one side of the workbench is provided with a control panel electrically connected with the electrode plate, the electrode sheet and the driving motor, wherein the control panel is used for signal transmission of the electrode plate and the electrode sheet and operation control of the driving motor, so that the automation degree of the whole pipe bending device is improved.

[0012] The utility model has the advantages that:

[0013] 1. The utility model discloses a support frame moves, and the slide rod also moves, when the pipe is rotated to the set angle, the slide rod contacts the electrode plate and pushes the electrode plate and the movable rod to slide to the inside of the recess, and the spring is compressed, when the electrode plate contacts the arc surface of the electrode sheet, the electric signal is generated, and the signal is transmitted to the control panel, the control panel controls the driving motor to close, and the pipe action is stopped, so that the accurate control of the pipe angle is realized.

[0014] 2. The utility model discloses a rotating handle, and the handle drives the threaded rod to rotate, when the threaded rod rotates, the mounting frame moves in the rectangular groove, so as to drive the auxiliary wheel to move, adjusts the distance between the auxiliary wheel and the bending wheel, makes it adapt to the outer diameter of the plastic pipe, ensures that the plastic pipe can be stably clamped between the auxiliary wheel and the bending wheel in the pipe bending process, and ensures the precision and stability of the pipe. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0016] Figure 1 It is the medium axle side view structure schematic diagram in the utility model;

[0017] Figure 2 It is the pipe bending device main body structure schematic diagram;

[0018] Figure 3 It is the pipe bending device bending assembly structure schematic diagram;

[0019] Figure 4 It is the pipe bending device angle control assembly structure schematic diagram;

[0020] Figure 5 It is the pipe bending device pipe fixing assembly structure schematic diagram.

[0021] In the figure: 1, workbench; 2, limiting disc; 3, scale line; 4, arc-shaped groove; 5, limiting rod; 6, indicating needle; 7, positioning block; 8, groove; 9, movable rod; 10, electrode plate; 11, electrode piece; 12, spring; 13, limiting hole; 14, limiting screw; 15, L-shaped frame; 16, support column; 17, bending wheel; 18, driving motor; 19, connecting plate; 20, sliding rod; 21, sliding groove; 22, support frame; 23, rectangular groove; 24, sliding block; 25, mounting frame; 26, auxiliary wheel; 27, threaded rod; 28, handle; 29, support base; 30, fixed frame; 31, telescopic rod; 32, fixed clamping plate; 33, control panel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 As shown in the figure, a pipe bending device comprises a workbench 1, a limiting disc 2 is installed above the workbench 1, a plurality of scale lines 3 are equally marked on the top side of the limiting disc 2, an arc-shaped groove 4 is formed in the inside of the limiting disc 2, a limiting rod 5 is slidably installed in the inside of one end of the arc-shaped groove 4, an indicating needle 6 is installed on the outside of the limiting rod 5, a positioning block 7 is slidably installed at the other end of the arc-shaped groove 4, a groove 8 is formed in the inside of the positioning block 7, a movable rod 9 is slidably installed in the inside of the groove 8, an electrode plate 10 is assembled at one end of the movable rod 9, an electrode piece 11 is installed on the top side inner wall of the groove 8, a spring 12 is fixedly connected between the groove 8 and the electrode plate 10, the spring 12 is sleeved on the outside of the movable rod 9, a plurality of limiting holes 13 are equally formed in the inside of the side wall of the limiting disc 2, a limiting screw 14 is rotatably installed in the inside of the limiting hole 13, one end of the limiting screw 14 abuts against the positioning block 7, and the outer arc surface of the electrode piece 11 is tangent to the electrode plate 10 when the electrode plate 10 is working.

[0024] An L-shaped frame 15 is installed on the top side of the workbench 1, a support column 16 is installed on the top side of the L-shaped frame 15, a bending wheel 17 is installed on the outside of the support column 16, and the limiting disc 2 is fixedly installed on the top side of the support column 16.

[0025] The top side of the workbench 1 is provided with a driving motor 18, the output end of the driving motor 18 is provided with a connecting plate 19, one end of the connecting plate 19 is provided with a sliding rod 20, the top side of the workbench 1 is internally provided with a sliding groove 21, the bottom end of the sliding rod 20 is slidingly installed in the inside of the sliding groove 21, the top end of the sliding rod 20 is provided with a supporting frame 22, and the workbench 1 is provided with a control panel 33 on one side; When working, the bending angle of the plastic pipe cannot be accurately controlled, so that the bending angle of the plastic pipe does not meet the design requirements, increases the waste rate of the plastic pipe, causes waste of raw materials, first, according to the angle that the plastic pipe needs to be bent, loosen the limiting screw 14, under the cooperation of the scale line 3, slide the positioning block 7 to the appropriate position, then pass the limiting screw 14 through the appropriate limiting hole 13 and abut against the positioning block 7 to fix the positioning block 7;

[0026] The driving motor 18 is started, the output end drives the connecting plate 19 to do circular motion, the sliding rod 20 slides in the sliding groove 21, the supporting frame 22 moves with the movement of the sliding rod 20, cooperates with the bending wheel 17 to apply pressure to the plastic pipe, so that the plastic pipe is gradually bent, with the movement of the supporting frame 22, the sliding rod 20 also moves, when the pipe is bent to the set angle, the sliding rod 20 contacts the electrode plate 10 and pushes the electrode plate 10 and the movable rod 9 to slide to the inside of the groove 8, compresses the spring 12, when the electrode plate 10 contacts the arc surface of the electrode sheet 11, an electric signal is generated at this time, and the signal is transmitted to the control panel 33, after the control panel 33 receives the signal, the driving motor 18 is immediately controlled to be closed, and the pipe bending action is stopped, so that the accurate control of the pipe bending angle is realized.

[0027] Please refer to Figure 1 、 2 、3、5, two rectangular grooves 23 are symmetrically arranged on the two sides of the supporting frame 22, a sliding block 24 is slidingly installed in the inside of the rectangular groove 23, a mounting frame 25 is fixedly connected between the two sides of the sliding block 24, an auxiliary wheel 26 is cooperatively installed in the inside of the mounting frame 25 through a pin shaft, a threaded rod 27 is rotatably installed on one side of the supporting frame 22, a handle 28 is fixedly connected to one end of the threaded rod 27, and the other end of the threaded rod 27 is rotatably installed in the inside of the mounting frame 25.

[0028] The top side edge of the workbench 1 is provided with a support seat 29, the inner top side of the support seat 29 is arc-shaped, the top side of the support seat 29 is provided with a fixing frame 30, the top side of the fixing frame 30 is provided with a telescopic rod 31, and the acting end of the telescopic rod 31 is provided with a fixed clamping plate 32; in operation, in the production process of the plastic pipe, the pipe can flexibly bypass the obstacles along the suitable route through the pipe bending operation, so as to realize the connection between the material source and the use point or different equipment, and therefore a pipe bending device is needed; in order to ensure the stability during the pipe bending operation, the handle 28 is rotated according to the size of the plastic pipe to be bent, the handle 28 drives the threaded rod 27 to rotate, when the threaded rod 27 rotates, the mounting frame 25 moves in the rectangular groove 23, thereby driving the auxiliary wheel 26 to move, the distance between the auxiliary wheel 26 and the bending wheel 17 is adjusted to adapt to the outer diameter of the plastic pipe, and it is ensured that the plastic pipe can be stably clamped between the auxiliary wheel 26 and the bending wheel 17 during the pipe bending process; the plastic pipe is placed on the support seat 29, the arc-shaped top side of the support seat 29 is matched with the shape of the plastic pipe, and the arc-shaped top side of the support seat 29 plays a preliminary supporting role; then the telescopic rod 31 is operated, the fixed clamping plate 32 is lowered, the plastic pipe is fixed on the support seat 29, the plastic pipe is prevented from moving during the pipe bending process, and the precision and stability of the pipe bending are ensured.

[0029] Working principle: first, loosen the limiting screw 14 according to the angle of the plastic pipe to be bent, slide the positioning block 7 to the appropriate position under the cooperation of the scale line 3, then pass the limiting screw 14 through the appropriate limiting hole 13 and abut against the positioning block 7 to fix the positioning block 7;

[0030] Start the driving motor 18, the output end of the driving motor 18 drives the connecting plate 19 to make circular motion, the sliding rod 20 slides in the sliding groove 21, the support frame 22 moves with the movement of the sliding rod 20, cooperates with the bending wheel 17 to apply pressure to the plastic pipe, and the plastic pipe is gradually bent; with the movement of the support frame 22, the sliding rod 20 also moves, when the pipe is rotated to the set angle, the sliding rod 20 contacts the electrode plate 10 and pushes the electrode plate 10 and the movable rod 9 to slide to the inside of the recess 8, and the spring 12 is compressed; when the electrode plate 10 contacts the arc surface of the electrode sheet 11, an electric signal is generated at this time, and the signal is transmitted to the control panel 33; after the control panel 33 receives the signal, the driving motor 18 is immediately controlled to be turned off, and the pipe bending operation is stopped, so that the angle of the pipe bending is accurately controlled;

[0031] According to the size of the plastic pipe to be bent, the handle 28 is rotated to drive the threaded rod 27 to rotate, when the threaded rod 27 rotates, the mounting frame 25 will move in the rectangular groove 23, thereby driving the auxiliary wheel 26 to move, adjusting the distance between the auxiliary wheel 26 and the bending wheel 17 to adapt to the outer diameter of the plastic pipe, ensuring that the plastic pipe can be stably clamped between the auxiliary wheel 26 and the bending wheel 17 during the pipe bending process, the plastic pipe is placed on the support seat 29, the arc-shaped top side thereof is matched with the shape of the plastic pipe, and a preliminary supporting effect is achieved, then the telescopic rod 31 is operated to lower the fixed clamping plate 32, and the plastic pipe is firmly fixed on the support seat 29, preventing the plastic pipe from moving during the pipe bending process, and ensuring the bending precision and stability.

[0032] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The basic principles, main features and advantages of the present application have been shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles 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.

Claims

1. A pipe bending apparatus characterized by: The application relates to a workbench, which comprises a workbench (1), a limiting disc (2) is mounted above the workbench (1), a plurality of scale lines (3) are equidistantly marked on the top side of the limiting disc (2), an arc-shaped groove (4) is formed in the inside of the limiting disc (2), a limiting rod (5) is slidably mounted in the inside of one end of the arc-shaped groove (4), an indicating needle (6) is mounted on the outside of the limiting rod (5), a positioning block (7) is slidably mounted at the other end of the arc-shaped groove (4), a recess (8) is formed in the inside of the positioning block (7), a movable rod (9) is slidably mounted in the inside of the recess (8) and penetrates through the positioning block (7), an electrode plate (10) is assembled at one end of the movable rod (9), an electrode sheet (11) is mounted on the top side inner wall of the recess (8), a spring (12) is fixedly connected between the recess (8) and the electrode plate (10), the spring (12) is sleeved on the outside of the movable rod (9), a plurality of limiting holes (13) are equidistantly formed in the inside of the side wall of the limiting disc (2), a limiting screw rod (14) is rotatably mounted in the inside of the limiting hole (13), one end of the limiting screw rod (14) abuts against the positioning block (7), and the outer arc surface of the electrode sheet (11) is tangent to the electrode plate (10) during the operation of the electrode plate (10).

2. A tube bending apparatus according to claim 1, wherein: An L-shaped frame (15) is mounted on the top side of the workbench (1), a supporting column (16) is mounted on the top side of the L-shaped frame (15), a bending wheel (17) is mounted on the outside of the supporting column (16), and the limiting disc (2) is fixedly mounted on the top side of the supporting column (16).

3. A tube bending apparatus according to claim 2, wherein: A driving motor (18) is mounted on the top side of the workbench (1), a connecting plate (19) is mounted on the output end of the driving motor (18), a sliding rod (20) is mounted at one end of the connecting plate (19) and penetrates through, a sliding groove (21) is formed in the inside of the top side of the workbench (1), the bottom end of the sliding rod (20) is slidably mounted in the inside of the sliding groove (21), and a supporting frame (22) is mounted on the top end of the sliding rod (20).

4. A tube bending apparatus according to claim 3, wherein: Two rectangular grooves (23) are symmetrically formed in the two sides of the supporting frame (22), a sliding block (24) is slidably mounted in the inside of the rectangular groove (23), a mounting frame (25) is fixedly connected between the two sides of the sliding block (24), an auxiliary wheel (26) is mounted in the inside of the mounting frame (25) through pin shaft cooperation, a threaded rod (27) is rotatably mounted on one side of the supporting frame (22) and penetrates through, a handle (28) is fixedly connected to one end of the threaded rod (27), and the other end of the threaded rod (27) is rotatably mounted in the inside of the mounting frame (25).

5. A tube bending apparatus according to claim 4, wherein: A supporting base (29) is mounted at the top side edge of the workbench (1), the top side inside of the supporting base (29) is arc-shaped, a fixing frame (30) is mounted on the top side of the supporting base (29), a telescopic rod (31) is mounted on the top side of the fixing frame (30), and a fixed clamping plate (32) is mounted on the acting end of the telescopic rod (31).

6. A tube bending apparatus according to claim 5, wherein: One side of the workbench (1) is provided with a control panel (33), which is electrically connected with the electrode plate (10), the electrode sheet (11) and the driving motor (18), and is used for signal transmission of the electrode plate (10) and the electrode sheet (11) and operation control of the driving motor (18).

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