Bending machine

Abstract

The invention relates to the technical field of bending machines, and discloses a bending machine which comprises a plate body and a plastic pipeline, the outer wall of the plate body is rotationally connected with a positioning disc and two pressing discs, and the outer wall of the positioning disc is fixedly connected with a power output shaft of a servo motor; the air pump is driven to work, gas is injected into the plastic pipeline through the connecting pipe, the communicating pipe and the pressure supplementing pipe, and the two ends of the plastic pipeline are sealed through the two columnar air bags, so that the interior of the plastic pipeline is in a full-load gas state, the interior of the plastic pipeline is pressurized, and confrontation compensation with external force can be formed at the bending position; according to the plastic pipeline forming device, the bent position is prevented from forming wrinkles or plastic deformation, the pressure measuring mechanism can be used for monitoring the sealing performance of the interior of the plastic pipeline in the shaping state in real time, the abnormal plastic pipeline can be detected in time, the shaping mechanism can be used for positioning the bent plastic pipeline, it is guaranteed that the bent plastic pipeline cannot be reset immediately after being bent, and therefore the sealing performance of the interior of the plastic pipeline is improved. And the forming effect of the bent angle is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of bending machines, and particularly to a bending machine. Background Art

[0002] During the production and processing of plastic pipes, pipes with a certain arc-shaped bend are often produced and processed according to actual usage needs, and at this time, a pipe bending mechanism is used.

[0003] Both ends of the existing plastic pipes are in an open state during bending, and the inside cannot form compensation with the bending position during bending, which will further exacerbate the free deformation of the pipes, easily form wrinkles or plastic deformation at the bending position, and may cause cracks or even rupture in the long term, ultimately affecting the service life of the pipes. For this reason, this application proposes a bending machine to solve the above problems. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a bending machine that seals both ends of a plastic pipe through two columnar air bags, so that the inside of the plastic pipe is in a state of being full of gas, pressurizes the inside of the plastic pipe, can form an opposing compensation with the external force at the bending position, avoids forming wrinkles or plastic deformation at the bending position, and can use a pressure measuring mechanism to monitor the sealing performance of the inside of the plastic pipe in the shaped state in real time, can detect abnormal plastic pipes in time, and the shaping mechanism can position the bent plastic pipe to ensure that it will not immediately reset after bending, ensuring the forming effect of the angle after bending.

[0005] In order to solve the above technical problems, the present invention solves the problem that both ends of the existing plastic pipe are in an open state during bending, and the inside cannot form compensation with the bending position during bending, which will further exacerbate the free deformation of the pipe, easily form wrinkles or plastic deformation at the bending position, and may cause cracks or even rupture in the long term through the following technical solutions.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions: A bending machine, comprising: a plate body and a plastic pipe, the outer wall of the plate body is rotatably connected with a positioning disk and two pressing disks, and the power output shaft of a servo motor is fixedly connected to the outer wall of the positioning disk; further comprising: an air pump installed on the outer wall of the plate body, the output end of the air pump is fixedly connected with a connecting pipe, the end of the connecting pipe far from the air pump is fixedly connected with a communicating pipe, columnar air bags are installed at both ends of the communicating pipe, the columnar air bags are arranged on the inner walls on both sides of the plastic pipe, and a pressure measuring mechanism is installed on the outer edge of the communicating pipe; and a pressure compensating pipe communicated and installed on the inner wall of the communicating pipe, and the end of the pressure compensating pipe far from the communicating pipe extends to the inner wall of the plastic pipe, and a valve is installed on the outer edge of the communicating pipe; and a bending mechanism installed on the outer wall of the plate body and a shaping mechanism installed on the outer wall of the plate body.

[0007] As a preferred technical solution of the present invention, the pressure measuring mechanism includes a branch pipe, the branch pipe is connected and installed on the outer edge of the connecting pipe, a sliding column is slidably connected to the inner wall of the branch pipe, an electrode sheet one is installed on the side wall of the sliding column, a positioning column is fixed on the inner wall of the branch pipe, and an electrode sheet two is fixedly installed on the side of the positioning column close to the electrode sheet one. A fixing frame is installed on the top of the plate body, and the fixing frame, the electrode sheet one and the electrode sheet two are electrically connected.

[0008] As a preferred technical solution of the present invention, the bending mechanism includes a bracket installed on the outer wall of the plate body, a powerful motor is installed on the top of the bracket, the power output shaft of the powerful motor is fixedly connected with a lead screw, a slider is threadedly connected to the outer edge of the lead screw, two connecting rods are symmetrically installed on the outer side of the slider, and moving disks are fixedly installed on the sides of the two connecting rods away from the slider. Guide rods are rotatably connected to the inner walls of the two connecting rods, and the two guide rods are fixedly connected to the two pressing disks.

[0009] As a preferred technical solution of the present invention, the inner wall of the moving disk is fixedly connected with the outer ring of a bearing, the inner ring of the bearing is fixedly connected with the outer edge of the guide rod, and a driving part is installed on the outer wall of the connecting rod.

[0010] As a preferred technical solution of the present invention, the driving part includes a micro motor, the micro motor is fixedly installed on the outer wall of the connecting rod, the power output shaft of the micro motor is fixedly connected with a driving gear, the ends of the two guide rods away from the pressing disk are fixedly connected with transmission wheels, and a toothed transmission belt is sleeved on the inner walls of the two transmission wheels. The two transmission wheels are rotatably connected to the outer sides of the two moving disks in a fitting manner, and a driven gear is installed on the outer wall of one of the transmission wheels, and the driven gear meshes with the driving gear.

[0011] As a preferred technical solution of the present invention, there are two guide grooves symmetrically on the inner wall of the plate body, the two guide rods are slidably connected to the inner walls of the two guide grooves, the positioning disk and the two pressing disks are arranged in a triangle, and the plastic pipeline is arranged above the positioning disk and below the two pressing disks.

[0012] As a preferred technical solution of the present invention, the shaping mechanism includes a receiving frame, the receiving frame is installed on the outer wall of the plate body, a fixing plate is installed at the bottom of the receiving frame, a pressure sensor is installed on the inner side of the fixing plate, one ends of two reset springs are symmetrically and fixedly connected to the inner wall of the receiving frame, and the other ends of the two reset springs are fixedly connected to an abutting block. A pressing rod is fixedly installed on the side of the abutting block close to the reset spring, and the pressing rod is slidably connected to the inner wall of the receiving frame. A penetrating groove is opened on the inner wall of the plate body, the abutting block is slidably connected to the inner wall of the penetrating groove, an arc-shaped landslide is opened on the top of the abutting block, and a bayonet is opened on the bottom of the abutting block.

[0013] As a preferred technical solution of the present invention, straight grooves are symmetrically formed in the inner walls of the positioning disc and the two pressing discs, a motor bracket is installed on the outer wall of the plate body, and the servo motor is fixedly installed in the inner wall of the motor bracket.

[0014] As a preferred technical solution of the present invention, a positioning ring is fixedly installed in the inner wall of the bracket, the bottom end of the lead screw is rotatably installed in the inner wall of the positioning ring, the slider is slidably installed in the inner wall of the bracket, through grooves are formed on both sides of the bracket, and the two connecting rods are slidably installed in the inner walls of the through grooves.

[0015] As a preferred technical solution of the present invention, a warning light is fixedly installed on the outer wall of the plate body, and the pressure sensor is also electrically connected to the fixed frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: For this bending machine, by driving the air pump to operate, injecting gas into the interior of the plastic pipeline through the connecting pipe, the communicating pipe and the pressure compensating pipe, and sealing the two ends of the plastic pipeline with two columnar air bags, the interior of the plastic pipeline is in a state of being full of gas, pressurizing the interior of the plastic pipeline, which can form an anti-compensation against the external force at the bending position, avoiding the formation of wrinkles or plastic deformation at the bending part, and using the pressure measuring mechanism to monitor the sealing performance of the interior of the plastic pipeline in the shaped state in real time, being able to detect abnormal plastic pipelines in time, and the shaping mechanism can position the bent plastic pipeline, ensuring that it will not immediately return to its original position after bending, and ensuring the forming effect of the angle after bending.

[0017] For this bending machine, by setting the bending mechanism and the driving part, the plastic pipeline can be bent when the two pressing discs move downward, and the driving part can drive the two pressing discs to rotate synchronously, thereby adjusting the position of the straight groove and the arc part of the inner wall of the pressing disc, so as to facilitate corresponding to bending parts of different specifications, and at the same time, it is convenient to adjust the contact between different positions of the inner walls of the positioning disc and the two pressing discs and the plastic pipeline, avoiding wear caused by long-term contact and causing scratches on the outer wall of the plastic pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following drawings 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.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a rear structural schematic diagram of the present invention; Figure 3 Schematic cross-sectional structure diagram of the plastic pipeline of the present invention; Figure 4 For the present invention Figure 3 Enlarged structure diagram at position A in Figure 5 For the present invention Figure 3 Enlarged structure diagram at position B in Figure 6 Schematic structure diagram of the positioning disk and the pressing disk of the present invention; Figure 7 Schematic side-sectional structure diagram of the bracket of the present invention; Figure 8 Schematic structure diagram of the transmission wheel of the present invention; Figure 9 Schematic structure diagram of the abutting block of the present invention; Figure 10 For the present invention Figure 9 Enlarged structure diagram at position C in

[0020] In the figure: 1, plate body; 2, fixing frame; 3, warning lamp; 4, positioning disk; 5, servo motor; 6, pressing disk; 7, plastic pipeline; 8, air pump; 9, connecting pipe; 10, communicating pipe; 11, columnar airbag; 12, valve; 13, pressure compensation pipe; 14, branch pipe; 15, sliding column; 16, electrode plate 1; 17, positioning column; 18, electrode plate 2; 19, bracket; 20, powerful motor; 21, lead screw; 22, slider; 23, connecting rod; 24, moving disk; 25, guide rod; 26, bearing; 27, transmission wheel; 28, toothed transmission belt; 29, driven gear; 30, driving gear; 31, micro motor; 32, guide groove; 33, penetration groove; 34, accommodation frame; 35, fixing plate; 36, pressure sensor; 37, return spring; 38, abutting block; 39, pressing rod; 40, arc-shaped landslide; 41, straight groove. Detailed implementation manners

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be used in other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present invention.

[0023] Those skilled in the art should understand that in the disclosure of the present invention, the orientations or positions indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or position relationships shown in the drawings. It is only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present invention.

[0024] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0025] Please refer to Figure 1-10 , a bending machine, including a plate body 1 and a plastic pipe 7. A positioning disk 4 and two pressing disks 6 are rotatably connected to the outer wall of the plate body 1. The power output shaft of a servo motor 5 is fixedly connected to the outer wall of the positioning disk 4. It further includes: an air pump 8 installed on the outer wall of the plate body 1. The output end of the air pump 8 is fixedly connected to a connecting pipe 9. One end of the connecting pipe 9 away from the air pump 8 is fixedly connected to a communicating pipe 10. Columnar air bags 11 are installed at both ends of the communicating pipe 10. The columnar air bags 11 are arranged on the inner walls on both sides of the plastic pipe 7. A pressure measuring mechanism is installed on the outer edge of the communicating pipe 10. And a pressure compensating pipe 13 communicated and installed on the inner wall of the communicating pipe 10. One end of the pressure compensating pipe 13 away from the communicating pipe 10 extends to the inner wall of the plastic pipe 7. A valve 12 is installed on the outer edge of the communicating pipe 10. And a bending mechanism installed on the outer wall of the plate body 1 and a shaping mechanism installed on the outer wall of the plate body 1.

[0026] Refer to Figure 3 and Figure 4As shown: The pressure measuring mechanism includes a branch pipe 14, which is connected and installed on the outer edge of the connecting pipe 10. A sliding column 15 is slidably connected to the inner wall of the branch pipe 14. An electrode plate 16 is installed on the side wall of the sliding column 15. A positioning column 17 is fixed to the inner wall of the branch pipe 14. An electrode plate 18 is fixedly installed on the side of the positioning column 17 close to the electrode plate 16. A fixing frame 2 is installed on the top of the plate body 1. The fixing frame 2, the electrode plate 16 and the electrode plate 18 are electrically connected. After the plastic pipe 7 is bent to form an arc, the air pump 8 can be continuously driven to operate. The inside of the plastic pipe 7 is filled with gas by using the connecting pipe 9, the connecting pipe 10 and the pressure compensating pipe 13. And the two columnar air bags 11 seal the two ends of the plastic pipe 7. When the plastic pipe 7 is bent and in a leak-free state, the gas entering the inside of the branch pipe 14 can push the sliding column 15 to move until the electrode plate 16 contacts the electrode plate 18, and then an electric current can be generated to transmit a signal to the fixing frame 2, which is used to flash a light to express the sealing information of the plastic pipe 7 after bending to the user. On the contrary, if the plastic pipe 7 is damaged after bending and the sealing performance is insufficient, the gas passing through the branch pipe 14 cannot push the sliding column 15 to move to drive the electrode plate 16 to contact the electrode plate 18, and thus the signal cannot be transmitted to the fixing frame 2.

[0027] Refer to Figures 6-8 As shown: The bending mechanism includes a bracket 19 installed on the outer wall of the plate body 1. A powerful motor 20 is installed on the top of the bracket 19. The power output shaft of the powerful motor 20 is fixedly connected to a lead screw 21. A slider 22 is threadedly connected to the outer edge of the lead screw 21. Two connecting rods 23 are symmetrically installed on the outer side of the slider 22. And a moving disc 24 is fixedly installed on the side of each of the two connecting rods 23 away from the slider 22. The inner walls of the two connecting rods 23 are rotatably connected to a guide rod 25. And the two guide rods 25 are fixedly connected to the two pressing discs 6. By driving the powerful motor 20 to drive the lead screw 21 to rotate, the slider 22 can be driven to move up and down, and then the moving disc 24 can be driven to cooperate with the guide rod 25 to drive the pressing disc 6 to move up and down, so as to adjust the distance between the pressing disc 6 and the positioning disc 4, which is convenient for applying plastic pipes 7 of different diameters, and is also convenient for placing the plastic pipe 7 between the positioning disc 4 and the two pressing discs 6.

[0028] Refer to Figure 8 As shown: The outer ring of a bearing 26 is fixedly connected to the inner wall of the moving disc 24. The inner ring of the bearing 26 is fixedly connected to the outer edge of the guide rod 25. A driving part is installed on the outer wall of the connecting rod 23, so that the guide rod 25 during rotation can be limited, ensuring that the guide rod 25 can stably rotate inside the moving disc 24 and ensuring that it will not easily deviate from its position during rotation.

[0029] Refer to Figure 7 and Figure 8As shown in the figure: The driving part includes a micro motor 31, which is fixedly installed on the outer wall of the connecting rod 23. The power output shaft of the micro motor 31 is fixedly connected with a driving gear 30. One end of each of the two guide rods 25 away from the pressure plate 6 is fixedly connected with a transmission wheel 27. A toothed transmission belt 28 is sleeved on the inner walls of the two transmission wheels 27. The two transmission wheels 27 are rotatably connected to the outside of the two moving plates 24. A driven gear 29 is installed on the outer wall of one of the transmission wheels 27. The driven gear 29 meshes with the driving gear 30, so that the micro motor 31 can be driven to drive the driving gear 30 to rotate, and then the driven gear 29 can be driven to rotate. Then, the transmission wheel 27 can be driven to cooperate with the toothed transmission belt 28 to drive the two guide rods 25 to rotate, and then drive the two pressure plates 6 to rotate, realizing the adjustment of the orientation of the pressure plate 6, and facilitating the control of the contact between different positions on the inner wall of the pressure plate 6 and the outer edge of the plastic pipe 7.

[0030] Refer to Figure 8 and Figure 9 As shown in the figure: There are two guide grooves 32 symmetrically arranged on the inner wall of the plate body 1. The two guide rods 25 are slidably connected to the inner walls of the two guide grooves 32. The positioning plate 4 and the two pressure plates 6 are arranged in a triangular shape. The plastic pipe 7 is arranged above the positioning plate 4 and below the two pressure plates 6, so that the two pressure plates 6 can be guaranteed to move up and down stably in a vertical state, and it is guaranteed that the guide rods 25 will not interfere with the plate body 1 when moving up and down. When the two pressure plates 6 move downwards, the plastic pipe 7 can be bent with the positioning plate 4 as a fulcrum.

[0031] Refer to Figure 9 and Figure 10 As shown in the figure: The shaping mechanism includes a receiving frame 34, which is installed on the outer wall of the plate body 1. A fixing plate 35 is installed at the bottom of the receiving frame 34. A pressure sensor 36 is installed on the inner side of the fixing plate 35. One ends of two return springs 37 are symmetrically and fixedly connected to the inner wall of the receiving frame 34, and the other ends of the two return springs 37 are fixedly connected to an abutting block 38. A pressing rod 39 is fixedly installed on the side of the abutting block 38 close to the return spring 37, and the pressing rod 39 is slidably connected to the inner wall of the receiving frame 34. A penetrating groove 33 is formed on the inner wall of the plate body 1. The abutting block 38 is slidably connected to the inner wall of the penetrating groove 33. An arc-shaped landslide 40 is formed on the top of the abutting block 38, and a bayonet is formed on the bottom of the abutting block 38. When the two pressure plates 6 move downwards to push the two sides of the plastic pipe 7 to bend downwards, the two sides of the plastic pipe 7 can squeeze the abutting block 38 along the arc-shaped landslide 40. Then, the abutting block 38 can be contracted into the inner wall of the receiving frame 34. Then, the plastic pipe 7 can move to the bottom of the abutting block 38. At this time, the elastic force of the return spring 37 can push the abutting block 38 back to its original position, and then the top of the plastic pipe 7 can be abutted against the inner wall of the bayonet, and then it can be used to shape the plastic pipe 7. When the abutting block 38 contracts into the inner wall of the receiving frame 34, it can push the pressing rod 39 to contact the pressure sensor 36.

[0032] Refer to Figure 1 and Figure 7 as shown in the figure: Straight grooves 41 are symmetrically formed on the inner walls of the positioning disc 4 and the two pressing discs 6. A motor bracket is installed on the outer wall of the plate body 1, and the servo motor 5 is fixedly installed on the inner wall of the motor bracket, so that the rotation of the positioning disc 4 and the two pressing discs 6 can be used to adjust the orientation position of the straight grooves 41, thereby facilitating the bending operation of plate-shaped materials. Moreover, different positions on the inner walls of the positioning disc 4 and the two pressing discs 6 can contact the plastic pipe 7, avoiding abrasion caused by long-term contact and preventing scratches on the outer wall of the plastic pipe 7.

[0033] Refer to Figure 7 and Figure 8 as shown in the figure: A positioning ring is fixedly installed on the inner wall of the bracket 19, the bottom end of the lead screw 21 is rotatably installed on the inner wall of the positioning ring, the slider 22 is slidably installed on the inner wall of the bracket 19, through grooves are formed on both sides of the bracket 19, and the two connecting rods 23 are slidably installed on the inner walls of the through grooves, so that the lead screw 21 during rotation can be limited, ensuring that the lead screw 21 will not swing randomly during rotation, and can stably drive the slider 22 to move up and down on the inner wall of the bracket 19, and the connecting rod 23 will not interfere with the bracket 19 during up and down movement.

[0034] Refer to Figure 1 and Figure 10 as shown in the figure: A warning light 3 is fixedly installed on the outer wall of the plate body 1, and the pressure sensor 36 is also electrically connected to the fixed frame 2, so that it can be used to position the plate body 1 and ensure the stability of the plate body 1. Moreover, when the pressure sensor 36 detects the impact signal of the pressure rod 39, it will timely transmit the signal to the fixed frame 2 to emit a flashing light, which is used to inform the staff that the plastic pipe 7 has been locked and shaped.

[0035] Working principle: First, the plastic pipeline 7 can be placed in the middle position between the positioning disc 4 and the two pressure discs 6. Then, the two columnar air bags 11 can be respectively inserted into the inner walls at both ends of the plastic pipeline 7. Then, the air pump 8 can be continuously driven to operate, and gas is injected into the interior of the plastic pipeline 7 through the connecting pipe 9, the communicating pipe 10, and the pressure compensating pipe 13. Moreover, the two columnar air bags 11 seal both ends of the plastic pipeline 7, so that the interior of the plastic pipeline 7 is in a state of being full of gas. Then, the powerful motor 20 can be driven to drive the lead screw 21 to rotate, and then the slider 22 can be driven to move up and down. Furthermore, the moving disc 24 can be driven to cooperate with the guide rod 25 to drive the pressure disc 6 to move downward to bend the plastic pipeline 7. At this time, both sides of the plastic pipeline 7 can squeeze the abutting block 38 along the arc-shaped landslide 40. Then, the abutting block 38 can be contracted into the inner wall of the accommodating frame 34. Furthermore, the plastic pipeline 7 can move to the bottom of the abutting block 38. At this time, the elastic force of the return spring 37 can push the abutting block 38 back to its original position, and then the top of the plastic pipeline 7 can be abutted against the inner wall of the bayonet, which can be used to shape the plastic pipeline 7. When the abutting block 38 contracts into the inner wall of the accommodating frame 34, it can push the pressure rod 39 to contact the pressure sensor 36. Then, when the pressure sensor 36 monitors the impact signal of the pressure rod 39, it can promptly transmit a signal to the fixed frame 2 to emit a flashing light, which is used to inform the staff that the locking and shaping of the plastic pipeline 7 have been completed; Then, when the plastic pipeline 7 is in a leak-free state after being bent, the valve 12 is closed. Then, the gas enters the interior of the plastic pipeline 7 through the pressure compensating pipe 13. The gas entering the branch pipe 14 can push the sliding column 15 to move until the electrode plate one 16 contacts the electrode plate two 18, and then an electric current can be generated to transmit a signal to the fixed frame 2, which is used to flash a light to convey the sealing information of the plastic pipeline 7 after being bent to the user. On the contrary, if the plastic pipeline 7 is damaged after being bent and the sealing performance is insufficient, the gas cannot push the sliding column 15 to move to drive the electrode plate one 16 to contact the electrode plate two 18, and then the signal cannot be transmitted to the fixed frame 2, that is, the light cannot flash, which can inform the staff that the bent plastic pipeline 7 may be damaged and the sealing performance is insufficient.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the above principles, the embodiments of the present invention can have any deformation or modification.

Claims

1. Bending machine, including: A plate body (1) and a plastic pipe (7), wherein the outer wall of the plate body (1) is rotatably connected to a positioning plate (4) and two pressure plates (6), and the outer wall of the positioning plate (4) is fixedly connected to a power output shaft of a servo motor (5); It is characterized by: also including: An air pump (8) is mounted on the outer wall of the plate body (1), the output end of the air pump (8) is fixedly connected to a connecting pipe (9), the end of the connecting pipe (9) away from the air pump (8) is fixedly connected to a connecting pipe (10), both ends of the connecting pipe (10) are mounted with columnar air bags (11), the columnar air bags (11) are arranged on the inner walls of both sides of the plastic pipe (7), and the outer edge of the connecting pipe (10) is mounted with a pressure measuring mechanism; and A pressure compensating pipe (13) is connected to and installed on the inner wall of the connecting pipe (10), and one end of the pressure compensating pipe (13) away from the connecting pipe (10) extends to the inner wall of the plastic pipe (7), and a valve (12) is installed on the outer edge of the connecting pipe (10); and A bending mechanism installed on the outer wall of the plate body (1) and a shaping mechanism installed on the outer wall of the plate body (1).

2. The bending machine according to claim 1, characterized in that: The pressure measuring mechanism comprises a branch pipe (14), the branch pipe (14) being connected and installed on the outer edge of the connecting pipe (10), the inner wall of the branch pipe (14) being slidably connected to a sliding column (15), the side wall of the sliding column (15) being installed with an electrode sheet 1 (16), the inner wall of the branch pipe (14) being fixed with a positioning column (17), the side of the positioning column (17) close to the electrode sheet 1 (16) being fixed with an electrode sheet 2 (18), the top of the plate body (1) being installed with a fixing frame (2), the fixing frame (2), the electrode sheet 1 (16) and the electrode sheet 2 (18) being electrically connected.

3. The bending machine according to claim 1, characterized in that: The bending mechanism comprises a bracket (19) mounted on the outer wall of the plate body (1), a powerful motor (20) being mounted on the top of the bracket (19), a screw rod (21) being fixedly connected to the power output shaft of the powerful motor (20), a slider (22) being threadedly connected to the outer edge of the screw rod (21), two connecting rods (23) being symmetrically mounted on the outer side of the slider (22), and a moving plate (24) being fixedly mounted on the sides of the two connecting rods (23) away from the slider (22), guide rods (25) being rotatably connected to the inner walls of the two connecting rods (23), and the two guide rods (25) being fixedly connected to the two pressure plates (6).

4. The bending machine according to claim 3, characterized in that: The inner wall of the movable plate (24) is fixedly connected to the outer ring of a bearing (26), the inner ring of the bearing (26) is fixedly connected to the outer edge of a guide rod (25), and a driving part is installed on the outer wall of the connecting rod (23).

5. The bending machine according to claim 4, characterized in that: The driving unit comprises a micro motor (31), the micro motor (31) being fixedly mounted on the outer wall of the connecting rod (23), the power output shaft of the micro motor (31) being fixedly connected to a driving gear (30), the ends of the two guide rods (25) away from the pressure plate (6) being fixedly connected to a transmission wheel (27), the inner walls of the two transmission wheels (27) being sleeved with a toothed transmission belt (28), the two transmission wheels (27) being rotatably connected to the outer sides of the two moving plates (24), the outer wall of one of the transmission wheels (27) being mounted with a driven gear (29), the driven gear (29) being meshed with the driving gear (30).

6. The bending machine according to claim 3, characterized in that: The inner wall of the plate body (1) is symmetrically provided with two guide grooves (32), the two guide rods (25) are slidably connected to the inner walls of the two guide grooves (32), the positioning plate (4) and the two pressure plates (6) are arranged in a triangular shape, and the plastic pipe (7) is arranged above the positioning plate (4) and below the two pressure plates (6).

7. The bending machine according to claim 1, characterized in that: The shaping mechanism comprises a containing frame (34), the containing frame (34) being mounted on the outer wall of the plate body (1), a fixing plate (35) being mounted on the bottom of the containing frame (34), a pressure sensor (36) being mounted on the inner side of the fixing plate (35), one end of two return springs (37) being symmetrically fixedly connected to the inner wall of the containing frame (34), and the other ends of the two return springs (37) being fixedly connected to abutment blocks (38), a pressure rod (39) being fixedly mounted on a side of the return spring (37) of the abutment blocks (38), and the pressure rod (39) being slidably connected to the inner wall of the containing frame (34), a through groove (33) being provided on the inner wall of the plate body (1), the abutment block (38) being slidably connected to the inner wall of the through groove (33), an arc-shaped slideway (40) being provided on the top of the abutment block (38), and a bayonet being provided on the bottom of the abutment block (38).

8. The bending machine according to claim 1, characterized in that: The inner walls of the positioning plate (4) and the two pressure plates (6) are symmetrically provided with straight grooves (41); the outer wall of the plate body (1) is provided with a motor frame, and the servo motor (5) is fixedly mounted on the inner wall of the motor frame.

9. The bending machine according to claim 3, characterized in that: A positioning ring is fixedly mounted on the inner wall of the bracket (19); the bottom end of the screw rod (21) is rotatably mounted on the inner wall of the positioning ring; the slider (22) is slidably mounted on the inner wall of the bracket (19); through grooves are provided on both sides of the bracket (19); and the two connecting rods (23) are slidably mounted on the inner walls of the through grooves.

10. The bending machine according to claim 7, characterized in that: A warning light (3) is fixedly mounted on the outer wall of the plate body (1), and the pressure sensor (36) is also electrically connected to the fixing frame (2).

Images