An annular corrugated pipe flaring mechanism

Abstract

The present invention discloses a flaring mechanism for an annular corrugated pipe, which relates to the technical field of flaring. The present invention includes a machine table. A chute is opened on the left side of the top surface of the machine table. A pipe placing rack is fixed on the right side of the top surface of the machine table. Four limiting rods are fixed at the bottom end inside the pipe placing rack. A pipe falling prevention component is arranged at the bottom end inside the machine table. The pipe falling prevention component includes two ring frames. The two ring frames are fixed at the bottom end inside the machine table. The two ring frames are located on the right side inside the machine table. Electric telescopic rods are fixedly installed on the inner walls of the two ring frames. A vertical plate is fixed on the left side of the telescopic end of the electric telescopic rod. A round roller is rotatably installed on the bottom surface of the vertical plate. The round roller is located at the bottom end inside the machine table. By sliding the arc-shaped supporting plate to the right below the annular corrugated pipe, the present invention avoids the problem that the port of the annular corrugated pipe drops and deflects, resulting in the deformation of the flaring of the annular corrugated pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of flaring, and specifically relates to a flaring mechanism for an annular corrugated pipe. Background Art

[0002] The main function of the flaring mechanism for an annular corrugated pipe is to expand the diameter of the end of the annular corrugated pipe. During the flaring process, not only the connection performance of the corrugated pipe is improved, but also its sealing effect can be significantly improved, thereby enhancing the overall product quality and reliability.

[0003] The patent with the patent number CN220329791U discloses a flaring device for a steel belt corrugated pipe, including a machine base. The lower end of the machine base is fixedly connected with legs. A clamping assembly is arranged on the upper end of the machine base. A steel belt corrugated pipe is in contact inside the clamping assembly. A heating assembly is arranged on the machine base. The heating assembly is slidably connected with the steel belt corrugated pipe. A support base is fixedly connected to the machine base. A hydraulic cylinder is arranged on the support base. An installation seat is fixedly connected to the hydraulic rod of the hydraulic cylinder. A flaring die is slidably connected inside the installation seat. By rotating the handle, the turntable will drive the screw rod threadedly connected inside the fixed table to rotate and move to the right. Thus, through the transmission of the rod sleeve, the limiting plate moves to the right. When the limiting plate completely contacts the steel belt corrugated pipe, stop rotating the handle. At this time, the steel belt corrugated pipe is limited in the horizontal direction by the limiting plate, avoiding the situation of the leftward movement of the steel belt corrugated pipe during flaring.

[0004] However, the current flaring device for a steel belt corrugated pipe has the following problems: When the current flaring device for a steel belt corrugated pipe is in use, since the annular corrugated pipe is prone to drooping at the port under the action of gravity during flaring, resulting in the problem that the port of the annular corrugated pipe droops and shifts, causing deformation of the flaring of the annular corrugated pipe. Therefore, we propose a flaring mechanism for an annular corrugated pipe. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a flaring mechanism for an annular corrugated pipe, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A flaring mechanism for an annular corrugated pipe, including a machine table. A chute is opened on the left side of the top surface of the machine table. A pipe placing rack is fixed on the right side of the top surface of the machine table. Four limiting rods are fixedly connected to the bottom end inside the pipe placing rack. A pipe anti-dropping assembly is arranged at the bottom end inside the machine table.

[0007] The anti-pipe-falling component includes two ring frames which are fixed to the inner bottom end of the machine table. The two ring frames are located on the right side inside the machine table. Electric telescopic rods are fixedly installed on the inner walls of the two ring frames. A vertical plate is fixed to the left side of the telescopic end of the electric telescopic rod. A round roller is rotatably installed on the bottom surface of the vertical plate. The round roller is located at the inner bottom end of the machine table. The outer wall of the vertical plate is slidably connected to the inner wall of the chute of the machine table. A flat conical shell is fixed to the top of the right side of the vertical plate. Resistance heaters are fixedly installed on the left and right sides of the inner wall of the flat conical shell. A straight rod is fixed to the top of the right side of the vertical plate. The straight rod is located below the flat conical shell. A spring is fixed to the top of the right side of the vertical plate. The spring is sleeved on the outer wall of the straight rod. An arc-shaped support plate is slidably installed on the right side of the outer wall of the straight rod. The bottom of the left side of the arc-shaped support plate is fixedly connected to the end of the spring away from the vertical plate. The flat conical shell enters the port of the annular corrugated pipe. Under the action of high temperature and extrusion of the flat conical shell, the port of the annular corrugated pipe begins to expand. The arc-shaped support plate slides to the right below the annular corrugated pipe. When the flat conical shell expands the port of the annular corrugated pipe, the arc-shaped support plate supports below the annular corrugated pipe to prevent the port of the annular corrugated pipe from falling. A anti-vibration component is arranged at the top of the left side of the vertical plate;

[0008] The anti-vibration component includes an L-shaped plate which is fixed to the top of the left side of the vertical plate. A thin rod is penetrated and rotatably installed on the left side of the front surface of the L-shaped plate. Two rubber rollers are fixed to the outer wall of the thin rod. The two rubber rollers are located on the front and back surfaces of the L-shaped plate. During the process of the rubber rollers moving to the right, under the action of friction, the rubber rollers roll on the machine table to reduce the vibration when the vertical plate moves to the right;

[0009] An anti-deformation device is arranged at the top of the left side of the L-shaped plate. Anti-retraction devices are arranged on the mutually remote sides of the anti-deformation device.

[0010] According to the above technical solution, the four limiting rods are located on the right side inside the pipe placing rack. The four limiting rods are stuck in the intervals of the corrugated pipe. The top of the left side of the pipe placing rack is on the movement track of the arc-shaped support plate. The outer walls of the two rubber rollers are in contact with the top surface of the machine table.

[0011] According to the above technical solution, the anti-deformation device includes two U-shaped inclined rods, a circular ring, four connecting plates, four short rods and a ring plate. The two U-shaped inclined rods are fixed to the top of the left side of the L-shaped plate. The two U-shaped inclined rods are located on the front and back surfaces of the vertical plate. The circular ring is fixed to the right side of the two U-shaped inclined rods. The circular ring is located on the right side of the outer wall of the flat conical shell. The four connecting plates are fixed to the circular ring. The four short rods are respectively fixed to the right sides of the four connecting plates. The ring plate is fixed to the sides of the four short rods close to each other. When the port of the annular corrugated pipe deforms and expands, the ring plate abuts against the port wall surface of the annular corrugated pipe. The ring plate restricts the expanded diameter of the port of the annular corrugated pipe to make the expanded diameter of the port of the annular corrugated pipe uniform.

[0012] According to the above technical solution, the anti-deformation device further includes two annular straight plates, two arc-shaped elastic pieces and two chamfered blocks. The two annular straight plates are respectively fixed on the outer walls of the two U-shaped inclined rods. The two annular straight plates are located on the front and back of the flat conical shell. The two arc-shaped elastic pieces are respectively embedded and fixed on the bottom surfaces of the two annular straight plates. The two chamfered blocks are respectively fixed at one ends of the two arc-shaped elastic pieces away from the two annular straight plates. The bottom surfaces of the two chamfered blocks are in sliding contact with the top surface of the machine table. The chamfers of the chamfered blocks scrape off the foreign matters accumulated on the machine table, so that there will be no accumulated foreign matters on the machine table when the rubber roller moves to the right.

[0013] According to the above technical solution, the annular plate is located on the right side of the ring. Chamfers are provided on the right sides of the two chamfered blocks, and the two chamfered blocks are respectively located on the right sides of the two rubber rollers.

[0014] According to the above technical solution, the anti-retraction device includes two L-shaped strip plates, two round rods, an arc plate and a semiconductor refrigeration plate. The two L-shaped strip plates are respectively fixed on the mutually remote sides of the two annular straight plates. The two round rods respectively penetrate and are fixed on the right sides of the top surfaces of the two L-shaped strip plates. The arc plate is fixed on the top surfaces of the two round rods. The arc plate is located above the flat conical shell. The semiconductor refrigeration plate is fixedly installed on the bottom surface of the arc plate. The heat on the flared opening of the annular corrugated pipe is quickly cooled by the semiconductor refrigeration plate, so that the flared opening of the annular corrugated pipe is quickly cooled and shaped.

[0015] According to the above technical solution, the anti-retraction device further includes two short columns, two magnetic blocks and a double-strip baffle. The two short columns are respectively embedded and fixed in the middle of the bottom surfaces of the two L-shaped strip plates. The two magnetic blocks are respectively fixed on the bottom surfaces of the two short columns. The double-strip baffle is fixed on the right side of the top surface of the machine table. The double-strip baffle is located on the left side of the pipe placing rack. The magnetic blocks limit the depth of the flat conical shell, so that the depth of the flared opening of the annular corrugated pipe will not be too long.

[0016] According to the above technical solution, the semiconductor refrigeration plate is located above the annular plate, and the left side of the double-strip baffle is on the movement tracks of the two magnetic blocks.

[0017] The present invention provides an annular corrugated pipe flaring mechanism. It has the following beneficial effects:

[0018] (1) In the present invention, through the cooperation of a ring frame, an electric telescopic rod, a vertical plate, a round roller, a flat conical shell, a resistance heater, a straight rod, a spring, an arc-shaped support plate, an L-shaped plate, and a thin rod with a rubber roller, the flat conical shell enters the port of the annular corrugated pipe. Under the high temperature and extrusion of the flat conical shell, the port of the annular corrugated pipe begins to expand. The arc-shaped support plate slides to the right below the annular corrugated pipe. When the flat conical shell expands the port of the annular corrugated pipe, the arc-shaped support plate supports below the annular corrugated pipe, preventing the port of the annular corrugated pipe from sagging. This prevents the deformation of the annular corrugated pipe due to the sag and offset of the port of the annular corrugated pipe. Moreover, during the rightward movement of the rubber roller, under the action of friction, the rubber roller rolls on the machine table, reducing the vibration when the vertical plate moves to the right and preventing the vertical plate from vibrating violently, which may cause uneven flaring of the equipment.

[0019] (2) Through the setting of the anti-deformation device in the present invention, the U-shaped inclined rod, the circular ring, the connecting plate, the short rod, the ring plate, the ring straight plate, and the arc-shaped elastic piece cooperate with the chamfer block. When the port of the annular corrugated pipe deforms and expands, the ring plate abuts against the port wall of the annular corrugated pipe. The ring plate restricts the expanded diameter of the port of the annular corrugated pipe, making the expanded diameter of the port of the annular corrugated pipe uniform, preventing poor flaring effect of the equipment due to different flaring sizes of the annular corrugated pipe. Moreover, the chamfer of the chamfer block scrapes off the foreign matters accumulated on the machine table, so that there are no accumulated foreign matters on the machine table during the rightward movement of the rubber roller, preventing the equipment from running smoothly due to the blockage of foreign matters on the machine table.

[0020] (3) Through the setting of the anti-retraction device in the present invention, the U-shaped inclined rod, the circular ring, the connecting plate, the short rod, the ring plate, the ring straight plate, and the arc-shaped elastic piece cooperate with the chamfer block. The heat on the flared part of the annular corrugated pipe is quickly cooled by the semiconductor refrigeration plate, enabling the flared part of the annular corrugated pipe to be quickly cooled and shaped, preventing the retraction of the flared part of the annular corrugated pipe due to slow shaping. Moreover, the magnetic block limits the depth of the flat conical shell, preventing the flared depth of the annular corrugated pipe from being too long and ensuring that the flared part of the annular corrugated pipe meets the standard. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the whole of the present invention;

[0022] Figure 2 is a cross-sectional schematic diagram of the whole of the present invention;

[0023] Figure 3 is a cross-sectional schematic diagram of the machine table of the present invention;

[0024] Figure 4 is of the present invention Figure 3 a partial enlarged schematic diagram of part A;

[0025] Figure 5 is a schematic diagram of the anti-deformation device of the present invention;

[0026] Figure 6 For the present invention Figure 5 A partially enlarged schematic view at position B in the present invention;

[0027] Figure 7 A cross-sectional schematic view of the anti-retraction device of the present invention;

[0028] Figure 8 For the present invention Figure 7 A partially enlarged schematic view at position C in the present invention.

[0029] In the figure: 1, machine platform; 2, pipe placing rack; 3, limiting rod; 21, anti-pipe-drop assembly; 211, ring frame; 212, electric telescopic rod; 213, vertical plate; 214, round roller; 215, flat conical shell; 216, resistance heater; 217, straight rod; 218, spring; 219, arc-shaped supporting plate; 22, anti-vibration assembly; 221, L-shaped plate; 222, thin rod; 223, rubber roller; 4, anti-deformation device; 41, U-shaped inclined rod; 42, circular ring; 43, connecting plate; 44, short rod; 45, ring plate; 46, ring straight plate; 47, arc-shaped elastic sheet; 48, chamfered block; 5, anti-retraction device; 51, L-shaped strip plate; 52, round rod; 53, arc plate; 54, semiconductor refrigeration plate; 55, short column; 56, magnetic block; 57, double-strip baffle. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Please refer to Figures 1 - 8 , an embodiment of the present invention is: an annular corrugated pipe flaring mechanism, including a machine platform 1, a chute is opened on the left side of the top surface of the machine platform 1, a pipe placing rack 2 is fixed on the right side of the top surface of the machine platform 1, four limiting rods 3 are fixed at the bottom end inside the pipe placing rack 2, the four limiting rods 3 are located on the right side inside the pipe placing rack 2, and the four limiting rods 3 are stuck in the intervals of the corrugated pipes;

[0032] At the inner bottom end of the machine table 1, a pipe anti-falling component 21 is provided. The pipe anti-falling component 21 includes two ring frames 211. The two ring frames 211 are fixed at the inner bottom end of the machine table 1. The two ring frames 211 are located on the right side inside the machine table 1. Electric telescopic rods 212 are fixedly installed on the inner walls of the two ring frames 211. On the left side of the telescopic end of the electric telescopic rod 212, a vertical plate 213 is fixed. At the bottom surface of the vertical plate 213, a round roller 214 is rotatably installed. The round roller 214 is located at the inner bottom end of the machine table 1. The outer wall of the vertical plate 213 is slidably connected to the inner wall of the chute of the machine table 1. At the top right of the vertical plate 213, a flat conical shell 215 is fixed. Resistance heaters 216 are fixedly installed on the left and right sides of the inner wall of the flat conical shell 215. At the top right of the vertical plate 213, a straight rod 217 is fixed. The straight rod 217 is located below the flat conical shell 215. At the top right of the vertical plate 213, a spring 218 is fixed. The spring 218 is sleeved on the outer wall of the straight rod 217. On the right side of the outer wall of the straight rod 217, an arc-shaped support plate 219 is slidably installed. The bottom left side of the arc-shaped support plate 219 is fixedly connected to the end of the spring 218 away from the vertical plate 213. The top left side of the pipe placing rack 2 is on the movement track of the arc-shaped support plate 219. During the process of the flat conical shell 215 moving to the right, the flat conical shell 215 enters the port of the annular corrugated pipe. Under the high temperature and extrusion of the flat conical shell 215, the port of the annular corrugated pipe begins to expand. The arc-shaped support plate 219 slides to the right below the annular corrugated pipe. When the flat conical shell 215 expands the port of the annular corrugated pipe, the arc-shaped support plate 219 supports below the annular corrugated pipe, so that the port of the annular corrugated pipe will not fall, avoiding the deformation of the annular corrugated pipe caused by the falling and deviation of the port of the annular corrugated pipe during the flaring of the annular corrugated pipe by the flaring mechanism;

[0033] At the top left of the vertical plate 213, an anti-vibration component 22 is provided. The anti-vibration component 22 includes an L-shaped plate 221. The L-shaped plate 221 is fixed at the top left of the vertical plate 213. On the left side of the front surface of the L-shaped plate 221, a thin rod 222 is penetrated and rotatably installed. Two rubber rollers 223 are fixed on the outer wall of the thin rod 222. The two rubber rollers 223 are located on the front and back surfaces of the L-shaped plate 221. The outer walls of the two rubber rollers 223 are in contact with the top surface of the machine table 1. During the process of the rubber rollers 223 moving to the right, under the action of friction, the rubber rollers 223 roll on the machine table 1, reducing the vibration when the vertical plate 213 moves to the right, avoiding the severe vibration of the vertical plate 213 during the flaring of the annular corrugated pipe by the flaring mechanism, which causes uneven flaring of the equipment.

[0034] During use, the machine table 1 supports the pipe placing rack 2, and the pipe placing rack 2 supports the limiting rod 3. Since the port of the annular corrugated pipe is prone to droop under the action of gravity when the annular corrugated pipe is flared, when using the equipment, the staff places the annular corrugated pipe in the pipe placing rack 2, and the limiting rod 3 is stuck in the interval of the annular corrugated pipe. The limiting rod 3 limits the annular corrugated pipe. At the same time, the port of the annular corrugated pipe is placed on the arc-shaped support plate 219. The machine table 1 supports the ring frame 211, starts the electric telescopic rod 212 in the ring frame 211, and the telescopic end of the electric telescopic rod 212 starts to move to the right. The telescopic end of the electric telescopic rod 212 drives the vertical plate 213 to move to the right, and the vertical plate 213 drives the round roller 214 to move to the right. Under the action of friction, the round roller 214 rolls to the right in the machine table 1, and the vertical plate 213 moves to the right in the chute of the machine table 1. The vertical plate 213 drives the flat conical shell 215 to move to the right, and the flat conical shell 215 drives the resistance heater 216 to move to the right. Start the resistance heater 216, and the resistance heater 216 starts to heat up. The resistance heater 216 transfers heat to the flat conical shell 215. During the process of moving to the right, the flat conical shell 215 enters the port of the annular corrugated pipe. Under the high temperature and extrusion of the flat conical shell 215, the port of the annular corrugated pipe starts to expand. When the vertical plate 213 moves to the right in the chute of the machine table 1, the vertical plate 213 drives the straight rod 217 to move to the right. At the same time, the vertical plate 213 drives the spring 218 to move to the right. The straight rod 217 drives the arc-shaped support plate 219 to move to the right. The arc-shaped support plate 219 slides to the right below the annular corrugated pipe. During the process of moving to the right of the arc-shaped support plate 219, the arc-shaped support plate 219 contacts the pipe placing rack 2. Under the action of the extrusion force, the straight rod 217 slides to the right in the arc-shaped support plate 219, and the spring 218 on the arc-shaped support plate 219 starts to contract, so that when the flat conical shell 215 flares the port of the annular corrugated pipe, the arc-shaped support plate 219 supports below the annular corrugated pipe, so that the port of the annular corrugated pipe will not droop, preventing the port of the annular corrugated pipe from drooping during equipment use, thus avoiding the problem that the port of the annular corrugated pipe droops and offsets during the flaring of the annular corrugated pipe by the flaring mechanism, resulting in the deformation of the flared annular corrugated pipe.

[0035] When the vertical plate 213 moves to the right in the chute of the machine table 1, the vertical plate 213 drives the L-shaped plate 221 to move to the right, the L-shaped plate 221 drives the thin rod 222 to move to the right, and the thin rod 222 drives the rubber roller 223 to move to the right. During the process of moving the rubber roller 223 to the right, under the action of friction, the rubber roller 223 rolls on the machine table 1, reducing the jitter when the vertical plate 213 moves to the right, thus avoiding the problem that the vertical plate 213 generates severe jitter during the flaring of the annular corrugated pipe by the flaring mechanism, resulting in uneven flaring of the equipment.

[0036] Please refer to Figures 1 - 8, on the basis of the above embodiments, in another embodiment of the present invention, an anti-deformation device 4 and an anti-retraction device 5 are further included. Among them, the anti-deformation device 4 is provided at the top left of the L-shaped plate 221. The anti-deformation device 4 includes two U-shaped inclined rods 41, a circular ring 42, four connecting plates 43, four short rods 44 and a ring plate 45. The two U-shaped inclined rods 41 are fixed at the top left of the L-shaped plate 221. The two U-shaped inclined rods 41 are located on the front and back of the vertical plate 213. The circular ring 42 is fixed on the right side of the two U-shaped inclined rods 41. The circular ring 42 is located on the right side of the outer wall of the flat conical shell 215. The four connecting plates 43 are fixed on the circular ring 42. The four short rods 44 are respectively fixed on the right sides of the four connecting plates 43. The ring plate 45 is fixed on the side where the four short rods 44 are close to each other. The ring plate 45 is located on the right side of the circular ring 42. When the port of the flat conical shell 215 enters the port of the annular corrugated pipe, the ring plate 45 is sleeved on the port of the annular corrugated pipe. When the port of the annular corrugated pipe deforms and expands, the ring plate 45 abuts against the port wall surface of the annular corrugated pipe. The ring plate 45 restricts the expanded diameter of the port of the annular corrugated pipe, making the expanded diameter of the port of the annular corrugated pipe uniform in size, and avoiding poor flaring effect of the equipment caused by different flaring sizes of the annular corrugated pipe when the flaring mechanism flares the annular corrugated pipe.

[0037] The anti-deformation device 4 further includes two ring straight plates 46, two arc-shaped elastic pieces 47 and two chamfered blocks 48. The two ring straight plates 46 are respectively fixed on the outer walls of the two U-shaped inclined rods 41. The two ring straight plates 46 are located on the front and back of the flat conical shell 215. The two arc-shaped elastic pieces 47 are respectively embedded at the bottom surfaces of the two ring straight plates 46. The two chamfered blocks 48 are respectively fixed at the ends of the two arc-shaped elastic pieces 47 away from the two ring straight plates 46. The bottom surfaces of the two chamfered blocks 48 are in sliding contact with the top surface of the machine table 1. Chamfers are provided on the right sides of the two chamfered blocks 48. The two chamfered blocks 48 are respectively located on the right sides of the two rubber rollers 223. During the process of the chamfered blocks 48 moving to the right, the chamfers of the chamfered blocks 48 scrape off the foreign matters accumulated on the machine table 1, so that there are no accumulated foreign matters on the machine table 1 during the process of the rubber rollers 223 moving to the right, and avoiding the equipment running smoothly being blocked by foreign matters on the machine table 1 when the flaring mechanism flares the annular corrugated pipe.

[0038] On one side of the anti-deformation device 4 that are far away from each other, there is an anti-retraction device 5. The anti-retraction device 5 includes two L-shaped strip plates 51, two round rods 52, an arc plate 53 and a semiconductor refrigeration plate 54. The two L-shaped strip plates 51 are respectively fixed on one side of the two ring straight plates 46 that are far away from each other. The two round rods 52 respectively penetrate and are fixed on the right side of the top surfaces of the two L-shaped strip plates 51. The arc plate 53 is fixed on the top surfaces of the two round rods 52. The arc plate 53 is located above the flat conical shell 215. The semiconductor refrigeration plate 54 is fixedly installed on the bottom surface of the arc plate 53. The semiconductor refrigeration plate 54 is located above the ring plate 45. The heat on the flare of the annular corrugated pipe is quickly cooled by the semiconductor refrigeration plate 54, so that the flare of the annular corrugated pipe is quickly cooled and shaped, avoiding that when the flaring mechanism flares the annular corrugated pipe, the flare of the annular corrugated pipe is slowly shaped and causes the flare to retract.

[0039] The anti-retraction device 5 further includes two short columns 55, two magnetic blocks 56 and a double-strip baffle 57. The two short columns 55 are respectively embedded in the middle of the bottom surfaces of the two L-shaped strip plates 51. The two magnetic blocks 56 are respectively fixed on the bottom surfaces of the two short columns 55. The double-strip baffle 57 is fixed on the right side of the top surface of the machine table 1. The double-strip baffle 57 is located on the left side of the pipe rack 2. The left side of the double-strip baffle 57 is on the movement track of the two magnetic blocks 56. The magnetic blocks 56 are in contact with the double-strip baffle 57. Under the magnetic force of the magnetic blocks 56, the magnetic blocks 56 are adsorbed on the double-strip baffle 57. The magnetic blocks 56 limit the depth of the flat conical shell 215, so that the flare depth of the annular corrugated pipe will not be too long, avoiding that when the flaring mechanism flares the annular corrugated pipe, the flare depth of the annular corrugated pipe is too long and causes the flare of the annular corrugated pipe to not meet the standard.

[0040] When the vertical plate 213 drives the L-shaped plate 221 to move to the right, the L-shaped plate 221 drives the U-shaped inclined rod 41 to move to the right, the U-shaped inclined rod 41 drives the ring 42 to move to the right, the ring 42 drives the connecting plate 43 to move to the right, the connecting plate 43 drives the short rod 44 to move to the right, and the short rod 44 drives the ring plate 45 to move to the right. When the flat conical shell 215 enters the port of the annular corrugated pipe, the ring plate 45 is sleeved on the port of the annular corrugated pipe. When the port of the annular corrugated pipe deforms and expands, the ring plate 45 abuts against the port wall surface of the annular corrugated pipe, so that the ring plate 45 restricts the expanded diameter of the port of the annular corrugated pipe, making the expanded diameter of the port of the annular corrugated pipe uniform in size, preventing the expanded sizes of the annular corrugated pipe from being different when the equipment is in use, and thus avoiding the problem that the flaring effect of the equipment is poor due to different flaring sizes of the annular corrugated pipe when the flaring mechanism flares the annular corrugated pipe.

[0041] While the L-shaped plate 221 drives the U-shaped diagonal rod 41 to move rightward, the U-shaped diagonal rod 41 drives the ring straight plate 46 to move rightward, the ring straight plate 46 drives the arc-shaped elastic piece 47 to move rightward, and the arc-shaped elastic piece 47 drives the chamfered block 48 to move rightward. During the rightward movement of the chamfered block 48, the chamfer of the chamfered block 48 scrapes the foreign matters accumulated on the machine table 1, so that during the rightward movement of the rubber roller 223, there are no accumulated foreign matters on the machine table 1, preventing foreign matters from blocking on the machine table 1 when the equipment is in use, thereby avoiding the problem that the equipment runs smoothly when the flaring mechanism flares the annular corrugated pipe due to foreign matter blocking on the machine table 1.

[0042] While the U-shaped diagonal rod 41 drives the ring straight plate 46 to move rightward, the ring straight plate 46 drives the L-shaped strip plate 51 to move rightward, the L-shaped strip plate 51 drives the round rod 52 to move rightward, the round rod 52 drives the arc plate 53 to move rightward, and the arc plate 53 drives the semiconductor refrigeration plate 54 to move rightward. When the flaring of the annular corrugated pipe by the flat conical shell 215 is completed, the resistance heater 216 in the flat conical shell 215 is turned off. At the same time, the semiconductor refrigeration plate 54 is started, and the semiconductor refrigeration plate 54 starts to refrigerate, so that the heat on the flared part of the annular corrugated pipe is quickly cooled by the semiconductor refrigeration plate 54, and the flared part of the annular corrugated pipe is quickly cooled and shaped, preventing the slow shaping of the flared part of the annular corrugated pipe when the equipment is in use, thereby avoiding the problem of flaring retraction caused by the slow shaping of the flared part of the annular corrugated pipe when the flaring mechanism flares the annular corrugated pipe.

[0043] While the ring straight plate 46 drives the L-shaped strip plate 51 to move rightward, the L-shaped strip plate 51 drives the short column 55 to move rightward, and the short column 55 drives the magnetic block 56 to move rightward. During the rightward movement of the magnetic block 56, the magnetic block 56 contacts the double-strip baffle 57, and under the magnetic force of the magnetic block 56, the magnetic block 56 is adsorbed on the double-strip baffle 57, so that the magnetic block 56 limits the depth of the flat conical shell 215, making the depth of the flared part of the annular corrugated pipe not too long, preventing the depth of the flared part of the annular corrugated pipe from being too long when the equipment is in use, thereby avoiding the problem that the flared part of the annular corrugated pipe does not meet the standard due to the too long depth of the flared part of the annular corrugated pipe when the flaring mechanism flares the annular corrugated pipe.

[0044] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An annular bellows expansion mechanism, comprising a machine platform, a slide groove is provided on the left side of the top surface of the machine platform, and a pipe placing rack is fixed on the right side of the top surface of the machine platform, characterized in that: Four limit rods are fixed at the bottom of the pipe rack, and a pipe falling prevention component is provided at the bottom of the machine. The anti-pipe falling assembly includes two ring frames, the two ring frames are fixed at the inner bottom end of the machine platform, the two ring frames are located on the right side of the machine platform, the inner walls of the two ring frames are fixedly installed with electric telescopic rods, a vertical plate is fixed on the left side of the telescopic end of the electric telescopic rod, a round roller is rotatably installed on the bottom surface of the vertical plate, the round roller is located at the inner bottom end of the machine platform, the outer wall of the vertical plate is slidably connected with the inner wall of the slide groove of the machine platform, a flat cone shell is fixed on the top right side of the vertical plate, and resistance heaters are fixedly installed on the left and right sides of the inner wall of the flat cone shell, a straight rod is fixed on the top right side of the vertical plate, the straight rod is located below the flat cone shell, a spring is fixed on the top right side of the vertical plate, the spring is sleeved on the outer wall of the straight rod, an arc-shaped support plate is slidably installed on the right side of the outer wall of the straight rod, the bottom left side of the arc-shaped support plate is fixedly connected to an end of the spring away from the vertical plate, and an anti-shake assembly is arranged on the top left side of the vertical plate; The anti-shake assembly includes an L-shaped plate, the L-shaped plate is fixed to the top of the left side of the vertical plate, a thin rod is passed through the left side of the front of the L-shaped plate and is rotatably installed, and two rubber rollers are fixed to the outer wall of the thin rod, and the two rubber rollers are located on the front and back of the L-shaped plate; The left top of the L-shaped plate is provided with an anti-deformation device, which includes two U-shaped oblique rods, a circular ring, four connecting plates, four short rods and a circular plate. The two U-shaped oblique rods are fixed to the left top of the L-shaped plate, the two U-shaped oblique rods are located on the front and back of the vertical plate, the circular ring is fixed to the right side of the two U-shaped oblique rods, the circular ring is located on the right side of the outer wall of the flat cone shell, the four connecting plates are fixed to the circular ring, the four short rods are respectively fixed to the right sides of the four connecting plates, and the circular plate is fixed to the four short rods close to each other. On one side, the anti-deformation device also includes two annular straight plates, two arc-shaped spring pieces and two chamfered blocks, the two annular straight plates are respectively fixed on the outer walls of the two U-shaped oblique rods, the two annular straight plates are located on the front and back sides of the flat cone shell, the two arc-shaped spring pieces are respectively embedded in the bottom surfaces of the two annular straight plates, the two chamfered blocks are respectively fixed at one end of the two arc-shaped spring pieces away from the two annular straight plates, the bottom surfaces of the two chamfered blocks are in sliding contact with the top surface of the machine, and an anti-retraction device is provided on the side of the anti-deformation device away from each other.

2. The annular bellows expansion mechanism according to claim 1, characterized in that: The four limit rods are located on the right side of the tube rack, the four limit rods are stuck in the intervals of the corrugated tube, the top left side of the tube rack is on the movement track of the arc-shaped support plate, and the outer walls of the two rubber rollers are in contact with the top surface of the machine.

3. The annular bellows expansion mechanism according to claim 2, characterized in that: The ring plate is located on the right side of the circular ring, and chamfers are provided on the right sides of the two chamfered blocks. The two chamfered blocks are respectively located on the right sides of the two rubber rollers.

4. The annular bellows expansion mechanism according to claim 3, characterized in that: The anti-retraction device includes two L-shaped strips, two round rods, an arc plate and a semiconductor refrigeration plate. The two L-shaped strips are respectively fixed on the side of the two straight ring plates away from each other. The two round rods respectively penetrate and are fixed on the right side of the top surfaces of the two L-shaped strips. The arc plate is fixed on the top surfaces of the two round rods. The arc plate is located above the flat cone shell, and the semiconductor refrigeration plate is fixedly installed on the bottom surface of the arc plate.

5. The annular bellows expansion mechanism according to claim 4, characterized in that: The anti-retraction device also includes two short columns, two magnetic blocks and a double-bar baffle. The two short columns are respectively embedded in the middle of the bottom surfaces of the two L-shaped strips, the two magnetic blocks are respectively fixed on the bottom surfaces of the two short columns, the double-bar baffle is fixed on the right side of the top surface of the machine, and the double-bar baffle is located on the left side of the pipe rack.

6. The annular bellows expansion mechanism according to claim 5, characterized in that: The semiconductor refrigeration plate is located above the ring plate, and the left side of the double-strip baffle is located on the movement track of the two magnetic blocks.

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