Flaring machine capable of protecting PVC pipe

Abstract

The utility model provides a flaring machine capable of protecting a PVC pipe, and relates to the field of PVC pipe flaring machines, the flaring machine comprises a rack, a flaring assembly, a protection assembly, a clamping air cylinder and a pushing air cylinder, the flaring assembly is arranged on the inner side of the rack, the flaring assembly comprises a rotating shaft, an adjusting bolt is rotationally connected to the interior of the front end of the rotating shaft, an open groove is formed in the surface of the rotating shaft, and the clamping air cylinder is arranged in the open groove. A scraper is slidably connected to the interior of the open groove, meanwhile, a wedge block is connected to the inner side of the scraper, a driving block is screwed to the outer side of the adjusting bolt, the driving block is slidably connected to the interior of the rotating shaft, meanwhile, the driving block coincides with the wedge block in the horizontal direction, and the protection assembly is arranged on the inner side of the rack and located on the front side of the flaring assembly. The PVC pipe flaring machine solves the problems that an existing PVC pipe flaring machine can only conduct flaring operation on pipes with specific inner diameters on the basis that the protection function is achieved, and meanwhile internal pollution exists, and the PVC pipe flaring machine can not be used continuously.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC pipe expanding machines, in particular to a expanding machine capable of protecting PVC pipes. Background Art

[0002] Pipes are facilities used for water supply and drainage in people's daily life. The length of pipes is limited during production. In order to meet the requirements of long-distance water transportation, multiple sections of pipes need to be connected. For PVC or HDPE pipes, they are generally connected by sleeve connection, so the radii of the two ends of the pipes need to be different. Since this type of pipe is a tube with a consistent overall radius after initial forming, it is necessary to further expand one end of the pipe. After searching, the prior art (application number: CN202020593431.4) records "a PVC pipe expanding machine, belonging to the field of PVC pipe expanding technology, including: a device body, an equipment cavity, a limit pipe, an elastic rubber pad, a motor, an electric soldering iron, a guide The device body is provided with a device cavity fixedly connected inside, a limit tube fixedly connected at one end of the device cavity, and a motor fixedly connected in the middle of the device cavity. The utility model is provided with a device body, a motor, an electric soldering iron, a heat conducting block, a positioning block and a protection structure, so that the PVC pipe expanding machine can expand the pipe mouth of the PVC pipe. The inner wall diameter of the protection pipe is larger than the diameter of the outer wall heat conducting block, so that there is a gap between the inner wall of the protection pipe and the outer wall of the heat conducting block, so that the expanded outer wall of the PVC pipe can be placed in the gap. At the same time, the protection tube can effectively prevent the outer wall of the PVC pipe from being torn when the PVC pipe is expanded, and the PVC pipe expanding machine is small in size and easy to carry.

[0003] However, although the PVC pipe expanding machine in the prior art has achieved portability and protection of the outer wall of the pipe, it still has some shortcomings: the existing PVC pipe expanding machine can only perform expanding operations on pipes of specific inner diameters on the basis of achieving the protection function, resulting in feasibility deviation; secondly, during the expanding operation by melting the inner wall of the pipe, it is easy for a large amount of molten material to be contaminated inside the expanding machine, which is not only difficult to handle, but also accumulates to a certain thickness over a long period of time and cannot be used for subsequent pipes to be inserted into the expanding machine, and produces harmful fumes, which leads to inconvenience in use. Utility Model Content

[0004] In order to overcome the defects of the prior art, a belling machine that can protect PVC pipes is provided to solve the problem that the existing PVC pipe belling machine can only perform belling operations on pipes with specific inner diameters on the basis of achieving the protection function, and there is internal pollution and cannot be used continuously.

[0005] In order to achieve the above-mentioned purpose, a belling machine for protecting PVC pipes is provided, comprising: a frame, a belling assembly, a protection assembly, a clamping cylinder and a propulsion cylinder, wherein the belling assembly is arranged on the inner side of the frame, and the belling assembly comprises a rotating shaft, and an adjusting bolt is rotatably connected to the front end of the rotating shaft, an open groove is opened on the surface of the rotating shaft, and a scraper is slidably connected to the inside of the open groove, and a wedge block is connected to the inside of the scraper, a driving block is screwed on the outer side of the adjusting bolt, and the driving block is slidably connected to the inside of the rotating shaft, and the driving block has an overlapping part with the wedge block in the horizontal direction, the protection assembly is arranged on the inner side of the frame, and the protection assembly is located at the front side of the belling assembly, and the protection assembly The protective assembly includes an outer connecting plate and an annular plate connected in the middle of the connecting plate. The outer periphery of the annular plate is connected to the side of the rotating shaft by elastic teeth, and the elastic teeth are connected by springs. The clamping cylinder is fixed to the upper side of the frame, and a fixed clamping plate is installed on one side plate of the frame. At the same time, a movable clamping plate is slidably connected to the inner wall of the side plate. The movable clamping plate and the fixed clamping plate are arranged as arc-shaped plate structures with arc openings relative to each other, and the upper side of the movable clamping plate is connected to the piston rod of the clamping cylinder. The propulsion cylinder is fixed to the outer wall of the other side plate of the frame, and the piston rod end of the propulsion cylinder is connected to an installation box, and a motor is installed inside the installation box, and the output shaft end of the motor is connected to the rear end of the rotating shaft.

[0006] Preferably, a movable groove is provided inside the rotating shaft, and a connecting guide groove is provided at the rear side of the movable groove, and the driving block is horizontally slidably connected in the movable groove and the guide groove, and the wedge block slides up and down in the guide groove.

[0007] Preferably, an inclined slope is provided at the lower end of the wedge block, and a slope with the same inclination angle is provided on the side of the driving block facing the wedge block.

[0008] Preferably, the scraper includes an inclined surface, and a horizontal surface is provided on the rear side of the inclined surface, and the lower end of the inclined surface faces the front end of the rotating shaft.

[0009] Preferably, a telescopic rod is fixed to the outer wall of the rotating shaft along the radial direction of the rotating shaft, and the outer end of the telescopic rod is connected to the lower side of the horizontal plane of the scraper, and a positioning bolt is screwed on the outer side of the telescopic rod.

[0010] Preferably, a guide rod parallel to the adjusting bolt is provided on the outer side thereof, and the guide rod slides through the driving block.

[0011] Preferably, the upper and lower ends of the connecting plate are respectively fixed to the top plate and the bottom plate of the frame, and the annular plate is fixed to the middle of the connecting plate, and the annular plate is configured as a circular plate with a circular hole formed inside.

[0012] Preferably, the elastic teeth are configured as a trapezoidal block structure made of rubber material, and the elastic teeth are arranged in a ring array on the outer periphery of the inner circular hole of the annular plate, and an anti-slip pad is provided on the inner side of the elastic teeth.

[0013] Preferably, a slide plate is fixed inside the frame, and the upper and lower ends of the slide plate are slidably connected to the top plate and the bottom plate of the frame, the mounting box is fixed in the middle of the slide plate, and a stabilizing frame is connected to one side of the slide plate, and the rotating shaft rotates through the stabilizing frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When in use, place the PVC pipe horizontally through the through hole of the side plate from one side of the frame and place it inside the arc groove of the fixed clamping plate, then start the clamping cylinder to push the movable clamping plate downward to clamp the pipe, and at the same time, one end of the pipe passes through the protective component, then start the motor to drive the scraper to rotate through the rotating shaft, and at the same time start the propulsion cylinder to push the rotating shaft into one end of the pipe, so that the scraper expands the pipe during the sequential entry process;

[0016] (2) The protective assembly includes an annular plate, elastic teeth and springs, so that when the inner wall of the pipe contacts the scraper, the outer wall structure of the pipe is protected, so as to prevent the pipe wall from being broken due to the vibration caused by the scraper, thereby protecting the pipe. At the same time, the scraper performs chip cutting operation on the inner wall of the pipe, avoiding the molten material pollution and fume pollution caused by the expansion through hot melting in the prior art, and having an environmental protection effect;

[0017] (3) When adjusting the rotating outer diameter of the scraper, the adjusting bolt is turned to drive the driving block to move toward one side of the wedge block, or move in the opposite direction, thereby driving the wedge block to move radially inward and outward in the rotating shaft. When it is adjusted to the required position, the telescopic rod is fixed by the positioning bolt, thereby fixing the scraper, thereby realizing the expansion operation of pipes with different inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0019] Figure 2 For the utility model embodiment Figure 1 Schematic diagram of the structure at point A in the middle.

[0020] Figure 3 It is a schematic diagram of the side view structure of the annular hole plate according to an embodiment of the utility model.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the expansion component of an embodiment of the utility model.

[0022] In the figure: 1. frame; 2. flaring assembly; 21. rotating shaft; 211. opening slot; 212. guide slot; 213. moving slot; 22. scraper; 221. inclined surface; 222. horizontal surface; 23. wedge block; 24. driving block; 25. adjusting bolt; 26. guide rod; 27. telescopic rod; 28. positioning bolt; 3. protection assembly; 31. connecting plate; 32. annular plate; 33. elastic tooth; 331. anti-skid pad; 34. spring; 4. clamping cylinder; 41. moving clamp plate; 42. fixed clamp plate; 5. propulsion cylinder; 51. mounting box; 52. slide plate; 6. motor; 61. stabilizing frame. DETAILED DESCRIPTION

[0023] Reference Figures 1 to 4 As shown, the utility model provides a belling machine capable of protecting PVC pipes, comprising: a frame 1, a belling assembly 2, a protection assembly 3, a clamping cylinder 4 and a propulsion cylinder 5.

[0024] Specifically, the flaring component 2 is arranged on the inner side of the frame 1, and the flaring component 2 includes a rotating shaft 21, and an adjusting bolt 25 is rotatably connected inside the front end of the rotating shaft 21, an open groove 211 is opened on the surface of the rotating shaft 21, and a scraper 22 is slidably connected inside the open groove 211, and a wedge block 23 is connected to the inner side of the scraper 22, and a driving block 24 is screwed on the outer side of the adjusting bolt 25, and the driving block 24 is slidably connected inside the rotating shaft 21, and the driving block 24 has an overlapping part with the wedge block 23 in the horizontal direction, and the protection component 3 is arranged on the inner side of the frame 1, and the protection component 3 is located at the front side of the flaring component 2, and the protection component 3 includes an outer connecting plate 31, and a ring hole plate 32 connected in the middle of the connecting plate 31, and the outer periphery of the ring hole plate 32 is connected to the side of the rotating shaft 21, and the elastic teeth 33 are connected through The spring 34 is connected, the clamping cylinder 4 is fixed on the upper side of the frame 1, and a fixed clamping plate 42 is installed on one side plate of the frame 1, and a movable clamping plate 41 is slidably connected to the inner wall of the side plate, the movable clamping plate 41 and the fixed clamping plate 42 are set as arc plate structures with arc mouths relative to each other, and the upper side of the movable clamping plate 41 is connected to the piston rod of the clamping cylinder 4, the propulsion cylinder 5 is fixed to the outer wall of the side plate on the other side of the frame 1, and the piston rod end of the propulsion cylinder 5 is connected to the installation box 51, and the motor 6 is installed inside the installation box 51, and the output shaft end of the motor 6 is connected to the rear end of the rotating shaft 21, a slide plate 52 is fixed on the inner side of the frame 1, and the upper and lower ends of the slide plate 52 are slidably connected to the top plate and the bottom plate of the frame 1, the installation box 51 is fixed in the middle of the slide plate 52, and a stabilizing frame 61 is connected to one side of the slide plate 52, and the rotating shaft 21 rotates through the stabilizing frame 61.

[0025] In this embodiment, the frame 1, the expanding assembly 2, the protection assembly 3, the clamping cylinder 4, the propulsion cylinder 5 and the motor 6 constitute the main structure of the expanding machine for protecting PVC pipes involved in this application.

[0026] The frame 1 involved includes two side plates, a top plate and a bottom plate, and a control button is provided at one end of the top plate to realize convenient and automated operation.

[0027] In this embodiment, the driving block 24 is configured as a circular plate structure so as to drive the plurality of wedge blocks 23 during the movement.

[0028] In this embodiment, the stabilizing frame 61 is configured as a C-shaped structure, and a bearing is installed in the middle to facilitate the rotation of the rotating shaft 21 through the connection.

[0029] As a preferred embodiment, the slide plate 52 is provided to be slidably connected to the frame 1, so that the propulsion cylinder 5 can drive the flaring assembly 2 to move horizontally.

[0030] It should be noted that the fixed clamping plate 42 is also slidably installed in the side plate of the frame 1 and is fixed in position by bolts, so that when pipes of different diameters are replaced, the center of the pipe can be adjusted up and down to coincide with the axis of the protection component 3 and the rotating shaft 21 in the horizontal direction.

[0031] Specifically, a movable groove 213 is opened inside the rotating shaft 21, and a connecting guide groove 212 is provided on the rear side of the movable groove 213, and the driving block 24 is horizontally slidably connected in the movable groove 213 and the guide groove 212, and the wedge block 23 slides up and down in the guide groove 212. The lower end of the wedge block 23 is provided with an inclined slope, and the side of the driving block 24 facing the wedge block 23 is provided with a slope with the same inclination angle, the scraper 22 includes an inclined surface 221, and a horizontal surface 222 is provided on the rear side of the inclined surface 221, and the lower end of the inclined surface 221 faces the front end of the rotating shaft 21, and a telescopic rod 27 is fixed to the outer wall of the rotating shaft 21 along the radial direction of the rotating shaft 21, and the outer end of the telescopic rod 27 is connected to the lower side of the horizontal surface 222 of the scraper 22, and a positioning bolt 28 is screwed on the outer side of the telescopic rod 27, and a guide rod 26 parallel to the adjusting bolt 25 is provided on the outer side, and the guide rod 26 slides through the driving block 24.

[0032] As a preferred embodiment, the driving block 24 and the inclined end faces of the wedge block 23 are in sliding frictional contact, so that the wedge block 23 is pushed outward, and at the same time, the driving block 24 is moved in the direction so that the scraper 22 is retracted under the elastic reset action of the telescopic rod 27.

[0033] Specifically, the upper and lower ends of the connecting plate 31 are respectively fixed to the top plate and the bottom plate of the frame 1, and the annular plate 32 is fixed to the middle part of the connecting plate 31. At the same time, the annular plate 32 is set as a circular plate with a circular hole opened inside, and the elastic teeth 33 are set as a trapezoidal block structure made of rubber material. The elastic teeth 33 are located on the outer periphery of the inner circular hole of the annular plate 32 and are arranged in a circular array. At the same time, an anti-slip pad 331 is provided on the inner side of the elastic teeth 33.

[0034] As a preferred embodiment, elastic teeth 33 made of rubber material are provided to make it suitable for pipes of different diameters. At the same time, under the action of spring 34, the contraction pressure of elastic teeth 33 is strengthened, thereby forming a stable clamping force on the pipe mouth.

[0035] When in use, the PVC pipe is horizontally passed through the through hole of the side plate from one side of the frame and placed inside the arc groove of the fixed clamping plate, and then the clamping cylinder is started to push the movable clamping plate downward to clamp the pipe. At the same time, one end of the pipe passes through the protective component, and then the motor is started to drive the scraper to rotate through the rotating shaft, and at the same time, the propulsion cylinder is started to push the rotating shaft to insert one end of the pipe, so that the scraper expands the pipe in the process of sequential entry; when adjusting the outer diameter of the scraper rotation, by rotating the adjusting bolt, the driving block is driven to move toward one side of the wedge block, or move in the opposite direction, and then the wedge block is driven to move radially inward and outward in the rotating shaft. When adjusted to the required position, the telescopic rod is fixed by the positioning bolt, and then the scraper is fixed, so as to realize the expansion operation of pipes with different inner diameters.

[0036] The expanding machine capable of protecting PVC pipes of the utility model can effectively solve the problem that the existing PVC pipe expanding machine can only expand pipes with specific inner diameters on the basis of realizing the protection function, and at the same time there is the problem of internal pollution and non-sustainable use. It realizes the expansion operation of PVC pipes of different diameters on the basis of the existing expanding machine technology capable of protecting PVC pipes and on the basis of protecting the pipes, and at the same time effectively prevents the internal pollution of the expanding machine and the external smoke pollution, thereby realizing the sustainable use effect.

Claims

1. A belling machine capable of protecting PVC pipes, comprising: A frame (1), a flaring assembly (2), a protection assembly (3), a clamping cylinder (4) and a propulsion cylinder (5), characterized in that: the flaring assembly (2) is arranged on the inner side of the frame (1), and the flaring assembly (2) includes a rotating shaft (21), and an adjusting bolt (25) is rotatably connected to the front end of the rotating shaft (21), an opening groove (211) is opened on the surface of the rotating shaft (21), and a scraper (22) is slidably connected to the inside of the opening groove (211), and a wedge block (23) is connected to the inside of the scraper (22), and a driving block (24) is screwed to the outside of the adjusting bolt (25), and the driving block (24) is slidably connected to the inside of the rotating shaft (21), and the driving block (24) has an overlapping portion with the wedge block (23) in the horizontal direction, and the protection assembly (3) is arranged on the inner side of the frame (1), and the protection assembly (3) is located on the front side of the flaring assembly (2), and the protection assembly (3) includes an outer The connecting plate (31) on the side and the annular plate (32) connected in the middle of the connecting plate (31), the outer periphery of the annular plate (32) facing the side of the rotating shaft (21) is connected with elastic teeth (33), and the elastic teeth (33) are connected by springs (34), the clamping cylinder (4) is fixed on the upper side of the frame (1), and a fixed clamping plate (42) is installed on one side of the side plate of the frame (1), and a movable clamping plate (41) is slidably connected to the inner side wall of the side plate, the movable clamping plate (41) and the fixed clamping plate (42) are set as arc plate structures with arc openings facing each other, and the upper side of the movable clamping plate (41) is connected to the piston rod of the clamping cylinder (4), the propulsion cylinder (5) is fixed on the outer wall of the other side of the side plate of the frame (1), and the piston rod end of the propulsion cylinder (5) is connected with a mounting box (51), and a motor (6) is installed inside the mounting box (51), and the output shaft end of the motor (6) is connected to the rear end of the rotating shaft (21).

2. A belling machine capable of protecting PVC pipes according to claim 1, characterized in that: The rotating shaft (21) is provided with a moving groove (213) inside, and a communicating guide groove (212) is provided at the rear side of the moving groove (213), and the driving block (24) is horizontally slidably connected in the moving groove (213) and the guide groove (212), and the wedge block (23) slides up and down in the guide groove (212).

3. The belling machine for protecting PVC pipes according to claim 1, characterized in that: The lower end of the wedge block (23) is provided with an inclined slope surface, and the side of the driving block (24) facing the wedge block (23) is provided with a slope surface with the same inclination angle.

4. The belling machine for protecting PVC pipes according to claim 1, characterized in that: The scraper (22) comprises an inclined surface (221), and a horizontal surface (222) is provided at the rear side of the inclined surface (221), while the lower end of the inclined surface (221) faces the front end of the rotating shaft (21).

5. The belling machine for protecting PVC pipes according to claim 1, characterized in that: A telescopic rod (27) is fixed to the outer wall of the rotating shaft (21) along the radial direction of the rotating shaft (21), and the outer end of the telescopic rod (27) is connected to the lower side of the horizontal plane (222) of the scraper (22), while a positioning bolt (28) is screwed to the outer side of the telescopic rod (27).

6. The belling machine for protecting PVC pipes according to claim 1, characterized in that: A guide rod (26) parallel to the adjusting bolt (25) is provided on the outer side of the adjusting bolt (25), and the guide rod (26) slides through the driving block (24).

7. The belling machine for protecting PVC pipes according to claim 1, characterized in that: The upper and lower ends of the connecting plate (31) are respectively fixed to the top plate and the bottom plate of the frame (1), and the annular plate (32) is fixed to the middle of the connecting plate (31). The annular plate (32) is configured as a circular plate with a circular hole formed therein.

8. The belling machine capable of protecting PVC pipes according to claim 1, characterized in that: The elastic teeth (33) are configured as a trapezoidal block structure made of rubber material, and the elastic teeth (33) are arranged in a ring array on the outer periphery of the inner circular hole of the annular plate (32), and an anti-slip pad (331) is provided on the inner side of the elastic teeth (33).

9. The belling machine capable of protecting PVC pipes according to claim 1, characterized in that: A slide plate (52) is fixed inside the frame (1), and the upper and lower ends of the slide plate (52) are slidably connected to the top plate and the bottom plate of the frame (1). The mounting box (51) is fixed in the middle of the slide plate (52). At the same time, a stabilizing frame (61) is connected to one side of the slide plate (52), and the rotating shaft (21) rotates through the stabilizing frame (61).

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