Protective pipe production device

Abstract

The utility model discloses a protective casing pipe production device which comprises a rack and a power execution device arranged on the rack, the output end of the power execution device is connected with a core shaft, the core shaft can be driven by the power execution device to rotate, the rack is further provided with a buckling and pressing roller and a forming roller set, and the buckling and pressing roller set is connected with the power execution device. One end of the metal belt sequentially passes through the forming roller set and the buckling and pressing roller set and then is fixedly connected with the mandrel, and the forming roller set is used for rolling the metal belt into a formed metal belt in a preset shape. The buckling and pressing roller set is used for pressing the formed metal belt to the core shaft and enabling the formed metal belt to be driven by the core shaft to be spirally wound around the core shaft so as to be self-locked and buckled to form the protective sleeve. The sheath tube processed by the sheath tube production device provided by the utility model adopts a self-locking structure that the section of the sheath tube is spirally wound by the shaped metal belt in a specific shape, so that the sheath tube has good stability and bendability.

Description

Technical Field

[0001] The utility model relates to the field of sheath pipe production, in particular to a sheath pipe production device Background Art

[0002] There are many devices that need to be manually operated in the radiation and high-temperature areas of the nuclear power field, the toxic, harmful, flammable and explosive areas in chemical production, and the deep water and sealed areas of offshore engineering. Workers need to wear special protective clothing or do special treatment before entering these areas to operate the equipment. Since there are certain difficulties or risks for operators to approach the equipment in the area, remote control has its unique advantages.

[0003] When performing remote control, due to the complex on-site working conditions and long transmission distances in remote transmission, and the fact that the environment of the transmission location is basically a special medium or dangerous environment, the torsion-resistant sheath tube is required to meet both the "rigid" strength conditions to resist damage to the flexible shaft inside the sheath tube caused by the outside world, and the "flexible" compliance conditions to play a role in shaping and torsion resistance.

[0004] The current process for producing metal hoses is that the metal strip is first rolled and formed and then spirally fastened; the metal strip is first rolled by a rolling wheel assembly to form a cross-section with a specific shape and a folded edge for engagement on the metal strip, in preparation for subsequent spiral fastening; the rolled metal strip then reaches the spiral fastening assembly, a winding wheel is provided in the middle of the spiral fastening assembly, and a plurality of clamping wheels are provided on the periphery of the winding wheel, so that the metal strip is spirally wound around the winding wheel and adjacent folded edges are interlocked and engaged with each other without disengagement.

[0005] Metal hoses of different specifications have different diameters or pitches, and require different positions of rolling wheel assemblies and spiral fastening assemblies. In existing metal hose forming machines, the rolling wheel assemblies and spiral fastening assemblies are fixed, so that one model of metal hose forming machine can only produce one specification of metal hose. When it is necessary to produce metal hoses of multiple specifications or to produce small batches for trial production, it is necessary to purchase multiple metal hose forming machines to meet the demand, which makes the production or trial production cost higher. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the existing sheath pipe production device, the utility model provides a sheath pipe production device, which can produce sheath pipes with different diameters, pitches and spiral angles, and the sheath pipe has good stability and bending performance. To achieve the above-mentioned purpose, the embodiment of the utility model adopts the following technical solutions:

[0007] A sheath tube production device is used to process a metal strip into a sheath tube, comprising a frame and a power actuator arranged on the frame, wherein the output end of the power actuator is connected to a core shaft, and the core shaft can rotate under the drive of the power actuator, and the frame is also provided with a pressing roller group and a forming roller group, wherein the forming roller group is used to roll the metal strip into a formed metal strip of a preset shape, and the pressing roller group is used to press the formed metal strip toward the core shaft so that the formed metal strip can be spirally wound around the core shaft under the drive of the core shaft and self-locked to form a sheath tube.

[0008] According to one aspect of the utility model, the cross-sectional shape of the preset shaped metal strip includes a middle portion, a second bend portion and a third bend portion, one end of the middle portion extends and bends downward to form the second bend portion, and the other end of the middle portion extends and bends upward to form the third bend portion.

[0009] According to one aspect of the utility model, the forming roller group includes at least one group of forming rollers connected in series, the forming rollers include an upper concave-convex roller and a lower concave-convex roller, and the upper concave-convex roller and the lower concave-convex roller cooperate with each other to press the metal strip to form a formed metal strip with a specific cross-section.

[0010] According to one aspect of the utility model, a pulling and drawing mechanism is provided on the frame, and the pulling and drawing mechanism includes a propulsion device, a sliding base and a mounting frame, the mounting frame is fixedly installed on the sliding base, the sliding base is slidably connected to the propulsion device, the propulsion device is arranged on the frame and connected to the power actuator, and the forming roller group and the pressing roller group are fixedly arranged on the mounting frame.

[0011] According to one aspect of the utility model, the propulsion device includes a screw rod and a guide rail, the screw rod passes through the sliding base and is cooperatively connected to the sliding base, one end of the screw rod is connected to the output end of the power actuator, the guide rail is set on the frame, the sliding base is set on the guide rail, and is slidably connected to the guide rail.

[0012] According to one aspect of the utility model, the mounting frame includes a forming roller mounting seat and a pressing roller mounting seat, the forming roller group is mounted on the forming roller mounting seat, the forming roller mounting seat is fixedly mounted on the sliding base, the pressing roller group is mounted on the pressing roller mounting seat, the pressing roller mounting seat is arranged on one side of the forming roller mounting seat and is fixedly mounted on the sliding base.

[0013] According to one aspect of the utility model, the forming roller group mounting seat includes a sliding support, a slider and an adjustment base, the forming roller group is installed on the slider, the slider is arranged on the sliding support and is slidably connected to the sliding support, the sliding support is fixedly arranged on the sliding base, the adjustment base is arranged on the sliding base, and the adjustment base includes a gear meshingly connected to the slider and a hand wheel connected to the gear.

[0014] According to one aspect of the utility model, a metal strip feeding device is provided on the frame, and the metal strip feeding device comprises a feeding frame and a feeding wheel, and the feeding wheel is installed on the feeding frame.

[0015] According to one aspect of the utility model, at least one guide roller is provided on the pulling mechanism, and the guide roller is provided with a metal strip guide groove, and the metal strip guide groove is used to guide the metal strip.

[0016] According to one aspect of the utility model, a lubricating oil device is also provided on the mounting frame, and the lubricating oil device is used to spray lubricating liquid on the surface of the formed metal strip.

[0017] According to one aspect of the utility model, the pressing roller group includes a mounting platform and a plurality of pressing rollers fixed on the mounting platform and arranged around a core shaft, the pressing roller includes a mounting base and a pressing mechanism arranged on the mounting base, the pressing mechanism includes a shaft, a locking nut, a roller and a compression spring, the shaft is connected to the mounting base, the roller is connected to the bottom of the shaft, a compression spring is sleeved on the shaft above the roller, the locking nut is arranged above the compression spring, the mounting base is fixed on the mounting platform, and the roller is used to cooperate with the formed metal strip for pressing.

[0018] According to one aspect of the utility model, a front and rear adjustment locking plate and an upper and lower adjustment bolt are provided on the mounting base, the shaft is connected to the front and rear adjustment locking plate, the upper and lower adjustment bolts are connected to the shaft and are arranged on both sides of the shaft, and the buckling mechanism also includes an angle adjustment gear, which is sleeved on the shaft and arranged between the locking nut and the compression spring.

[0019] According to one aspect of the utility model, a method for producing a sheath pipe using a sheath pipe device is used to perform the following steps:

[0020] The metal strip is rolled by a forming roller group into a formed metal strip of a preset shape;

[0021] The formed metal strip passes through the pressing roller set and is fixedly connected to the mandrel;

[0022] The formed metal strip is pressed toward the mandrel by the pressing roller group and is spirally wound around the mandrel and self-locked and buckled to form a sheath tube under the rotation of the mandrel.

[0023] The advantages of the implementation of the utility model are as follows: a sheath tube production device is used to process a metal strip into a sheath tube, including a frame and a power actuator arranged on the frame, an output end of the power actuator is connected to a core shaft, the core shaft can rotate under the drive of the power actuator, the frame is also provided with a buckling roller group and a forming roller group, the forming roller group forms the metal strip into a formed metal strip with a specific cross-sectional shape; the formed metal strip is pressed against the core shaft through the forming roller group, and the angle and position of the roller are adjusted to a suitable position by adjusting the upper and lower adjustment bolts, the angle adjustment gear, and the front and rear adjustment locking plates of the buckling roller respectively, the roller is tightly attached to the formed metal strip under the action of the compression spring, presses the spirally wound formed metal strip, and squeezes and locks the formed metal strip with each other to form a spiral winding structure; the angle and position of the buckling mechanism can be flexibly adjusted through the mounting seat, the front and rear adjustment locking plates, the upper and lower adjustment bolts and the angle adjustment gear to meet the production of sheath tubes with different diameters and pitches; through the setting of the pulling mechanism, the buckling roller group and the forming roller group can be on the core shaft The uniform movement in the axial direction enables the formed metal belt to be continuously and evenly spirally wound on the surface of the core shaft, thereby ensuring the stability and quality of the sheath tube; through the setting of the mounting frame, the replacement of the forming roller group and the buckling roller group is more convenient and quick, making the production of different sheath tubes more flexible and convenient; by setting a metal belt feeding device and a guide roller, the guide roller guides the metal belt unloaded by the feeding device, so that the metal belt can stably and continuously enter the forming roller group according to the preset path and direction, ensuring the stability of the production process; by setting a lubricating oil device to spray lubricating liquid on the surface of the formed metal belt, the friction between the roller and the formed metal belt is reduced, and the service life of the buckling roller is increased; through the above-mentioned sheath tube device, a sheath tube can be produced, which adopts a formed metal belt spiral winding structure, and a formed metal belt with a specific cross-section is spirally wound along the axial direction and self-lockingly buckled to form a sheath tube. The sheath tube has good stability and bending performance, can effectively resist external interference to the inside, and protect the internal flexible shaft from damage. At the same time, the sheath tube also has the function of shaping and anti-torsion, which can adapt to the "rigid" strength conditions in remote operation and meet the "flexible" compliance conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a sheath pipe device described in the utility model;

[0026] Figure 2It is a cross-sectional schematic diagram of a sheath pipe device according to the utility model;

[0027] Figure 3 It is a cross-sectional schematic diagram of a pressing roller described in the utility model;

[0028] Figure 4 This is a cross-sectional view of a forming roller assembly described in the utility model;

[0029] Figure 5 It is a schematic cross-sectional view of a formed metal strip according to the utility model;

[0030] Figure 6 The utility model is a schematic diagram of the anatomical structure of a sheath tube.

[0031] Numbers in the figure:

[0032] 1. Frame; 2. Power actuator; 3. Mandrel; 4. Forming roller group; 5. Pressing roller group; 51. Pressing roller; 52. Mounting table; 511. Locking nut; 512. Up and down adjustment bolt; 513. Angle adjustment gear; 514. Mounting base; 515. Compression spring; 516. Roller; 517. Front and rear adjustment locking plate; 518. Shaft; 6. Pulling mechanism; 61. Sliding base; 62. Mounting frame; 621. Forming roller mounting seat; 6211. Sliding support; 6212. Sliding block; 62 13. Adjustment base; 622. Feed device mounting seat; 623. Pressing roller mounting seat; 63. Propelling device; 631. Screw rod; 632. Guide rail; 7. Guide roller; 8. Metal belt feeding device; 81. Feed rack; 82. Feed wheel; 9. Metal belt; 10. Formed metal belt; 101. Middle part; 102. Second bending part; 103. Third bending part; 11. Lubricating oil device; 111. Lubricating oil input conduit; 112. Control switch; 113. Nozzle conduit; 114. Nozzle. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 5 , Figure 6As shown, a sheath tube, the sheath tube includes a metal strip with a specific cross-section shape, the metal strip 10 with a specific cross-section shape includes a middle part 101, a second bend 102 and a third bend 103, one end of the middle part 101 extends and bends downward to form the second bend 102, the other end of the middle part 101 extends and bends upward to form the third bend 103, the middle part is "Z" shaped, and other embodiments can also be other structures, for example, the middle part 101 is straight, arc-shaped, etc., the bending deformation angle between the middle part 101 and the second bend 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle part 101 and the third bend 103 is greater than 90° and less than or equal to 180°, and the second bend and the third bend are self-lockingly buckled with each other by spirally winding the metal strip in one direction to form a sheath tube. The sheath tube has excellent stability and bending performance, can effectively resist external interference, and protect the internal flexible shaft from damage. At the same time, the sheath tube also has the function of shaping and anti-torsion, which can adapt to the "rigid" strength conditions in remote operation and meet the "flexible" compliance conditions.

[0035] Embodiment 1

[0036] like Figures 1 to 4 As shown, a jacket tube production device, an embodiment of the utility model, the jacket tube production device, is used to process a metal strip 9 into a jacket tube, including a frame 1 and a power actuator 2 arranged on the frame 1, the output end of the power actuator 2 is connected to a core shaft 3, the core shaft 3 can rotate under the drive of the power actuator 2, the frame 1 is provided with a pressing roller group 5 and a forming roller group 4, the forming roller group 4 is at least composed of 1 group of forming rollers connected in series, the forming roller group is preferably 4-12 groups of forming rollers, and the forming roller group is more preferably 6-8 groups of forming rollers, the forming rollers include an upper concave-convex roller 41 and a lower concave-convex roller 42, and the upper concave-convex roller 41 and the lower concave-convex roller 42 cooperate with each other to press the metal strip 9 into a formed metal strip 10 with a specific cross-sectional shape.

[0037] like Figure 5 As shown, the formed metal strip 10 with a specific cross-section includes a middle portion 101, a second curved portion 102 and a third curved portion 103. One end of the middle portion 101 extends and bends downward to form the second curved portion 102, and the other end of the middle portion 101 extends and bends upward to form the third curved portion 103. The middle portion is "Z" shaped. In other embodiments, other structures may also be used. For example, the middle portion 101 is straight, arc-shaped, etc. The bending deformation angle between the middle portion 101 and the second curved portion 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle portion 101 and the third curved portion 103 is greater than 90° and less than or equal to 180°, which facilitates the self-locking buckling of the formed metal strip.

[0038] The metal strip 9 is formed into a formed metal strip 10 with a specific cross-section shape by the forming roller group, and then enters the pressing roller group 5 to be pressed toward the core shaft 3. Driven by the core shaft 3, the metal strip 10 is spirally wound around the core shaft 3 and self-locked. The pressing roller group 5 includes a mounting platform 52 and a plurality of pressing rollers 51 fixed on the mounting platform 52 and arranged around the core shaft 3. There is at least one pressing roller 51, preferably 2-4, and more preferably 4. The pressing roller 51 includes a mounting base 514 and a pressing mechanism arranged on the mounting base 514. The pressing mechanism includes a shaft 518, a locking nut 511, a roller 516 and a compression spring 515. The shaft 518 is connected to the mounting base 514, and the roller 516 is connected to the bottom of the shaft 518. A compression spring 515 is sleeved on the shaft 518 above the roller 516. The locking nut 511 is arranged above the compression spring 515. The mounting base 514 is fixed on the mounting platform 52, and the roller 516 is used to cooperate with the formed metal strip 10 for pressing. Preferably, the mounting base is provided with a front-to-back adjustment locking plate 517 and an up-and-down adjustment bolt 512, the shaft 518 is connected to the front-to-back adjustment plate 517, the shaft 518 is connected to the up-and-down adjustment bolt 512, and the up-and-down adjustment bolt 512 is arranged on both sides of the shaft 518, the buckling mechanism includes an angle adjustment gear 513, the angle adjustment gear 513 is sleeved on the shaft 518, and is arranged between the locking nut 511 and the compression spring 515, by adjusting the up-and-down adjustment bolt 512, the angle adjustment gear 513 and the front-to-back adjustment locking plate 517 respectively adjust the angle and position of the roller 516, and the roller 516 is pressed toward the formed metal strip under the action of the compression spring 515. The angle adjustment gear 513 includes an outer gear ring and an inner gear, the outer gear is fixed, and the angle of the roller 516 is adjusted by adjusting the meshing position of the inner gear.

[0039] Working principle: The metal strip 9 passes through the forming roller group 4, and by adjusting the gap between the upper and lower concave and convex rollers of each forming roller, it passes through the gap of the concave and convex shapes and is formed into a formed metal strip 10 with a specific cross-section shape. The formed metal strip 10 then passes through the buckling roller group 5 and is pressed against the core shaft 3 and fixedly connected to the core shaft 3. By adjusting the upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plate 517 of the buckling roller 51, the angle and position of the roller 516 are adjusted to a suitable position. At the same time, the power actuator 2 is started to drive the core shaft to rotate, so that the formed metal strip is spirally wound. The roller 516 is tightly attached to the formed metal strip 10 under the action of the compression spring 515, and presses the spirally wound formed metal strip 10, and squeezes and locks the formed metal strip 10 with each other to form a spirally wound self-locking buckled structure.

[0040] Advantages of this embodiment:

[0041] The upper and lower concave and convex rollers of the forming roller group press the formed metal strip into a metal strip with a specific cross-section shape, so that the shape of the formed metal strip is stable. By adjusting the front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears of each pressing roller in the pressing roller group to the appropriate angle and position, the formed metal strip can be accurately spirally rolled, so that the formed metal strip can be self-locked and buckled, which significantly improves the stability and quality of the sheath pipe. In addition, the angle and position of the pressing mechanism can be flexibly adjusted through the mounting seat, front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears to meet the production of sheath pipes with different diameters and pitches.

[0042] Embodiment 2

[0043] like Figures 1 to 4 As shown, a sheath pipe production device, another preferred embodiment of the utility model, the sheath pipe production device, includes a frame 1 and a power actuator 2 arranged on the frame 1, the output end of the power actuator 2 is connected to a core shaft 3, the core shaft 3 can rotate under the drive of the power actuator 2, the frame 1 is provided with a pressing roller group 5 and a forming roller group 4, the forming roller group 4 is at least composed of 1 group of forming rollers connected in series, the forming roller group is preferably 4-12 groups of forming rollers, and the forming roller group is more preferably 6-8 groups of forming rollers, the forming rollers include an upper concave-convex roller 41 and a lower concave-convex roller 42, and the upper concave-convex roller 41 and the lower concave-convex roller 42 cooperate with each other to press the metal strip 9 into a formed metal strip 10 with a specific cross-sectional shape.

[0044] like Figure 5 As shown, the formed metal strip 10 with a specific cross-section includes a middle portion 101, a second curved portion 102 and a third curved portion 103. One end of the middle portion 101 extends and bends downward to form the second curved portion 102, and the other end of the middle portion 101 extends and bends upward to form the third curved portion 103. The middle portion is "Z" shaped. In other embodiments, other structures may also be used. For example, the middle portion 101 is straight, arc-shaped, etc. The bending deformation angle between the middle portion 101 and the second curved portion 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle portion 101 and the third curved portion 103 is greater than 90° and less than or equal to 180°, which facilitates the self-locking buckling of the formed metal strip.

[0045] The metal strip 9 is formed into a formed metal strip 10 with a specific cross-section shape by the forming roller group, and then enters the pressing roller group 5 to be pressed toward the core shaft 3. Driven by the core shaft 3, the metal strip 10 is spirally wound around the core shaft 3 and self-locked. The pressing roller group 5 includes a mounting platform 52 and a plurality of pressing rollers 51 fixed on the mounting platform 52 and arranged around a core shaft. There is at least one pressing roller 51, preferably 2-4, and more preferably 4. The pressing roller 51 includes a mounting base 514 and a pressing mechanism arranged on the mounting base 514. The pressing mechanism includes a shaft 518, a locking nut 511, a roller 516 and a compression spring 515. The shaft 518 is connected to the mounting base 514, and the roller 516 is connected to the bottom of the shaft 518. A compression spring 515 is sleeved on the shaft 518 above the roller 516. The locking nut 511 is arranged above the compression spring 515. The mounting base 514 is fixed on the mounting platform 52, and the roller 516 is used to cooperate with the formed metal strip 10 for pressing. Preferably, the mounting seat is provided with a front-to-back adjustment locking plate 517 and an up-and-down adjustment bolt 512, the shaft 518 is connected to the front-to-back adjustment plate 517, the shaft 518 is connected to the up-and-down adjustment bolt 512, and the up-and-down adjustment bolt 512 is arranged on both sides of the shaft 518, the pressing mechanism comprises an angle adjustment gear 513, the angle adjustment gear 513 is sleeved on the shaft 518, and is arranged between the locking nut 511 and the compression spring 515, by adjusting the up-and-down adjustment bolt 512, the angle adjustment gear 513 and the front-to-back adjustment locking plate 517 respectively adjust the angle and position of the roller 516, and the roller 516 is pressed toward the formed metal strip under the action of the compression spring 515. The angle adjustment gear 513 comprises an outer gear ring and an inner gear, the outer gear is fixed, and the angle of the roller 516 is adjusted by adjusting the meshing position of the inner gear.

[0046] The frame 1 is also provided with a pulling mechanism 6, which includes a sliding base 61, a mounting frame 62 and a propulsion device 63. The mounting frame 62 is fixedly mounted on the sliding base 61, and the sliding base 61 is slidably connected to the propulsion device 63. The propulsion device is arranged on the frame and connected to the power actuator 2; the propulsion device 63 includes a screw rod 631 and a guide rail 632, and the screw rod 631 and the guide rail 632 are arranged parallel to the core shaft 3, and one end of the screw rod 631 is connected to the output end of the power actuator 2; the screw rod 631 passes through the sliding base 61 and is connected to the sliding base in a cooperative manner, and the cooperative connection method can be a threaded connection, and the screw rod 631 can also be replaced by a worm, which is meshed with the sliding base 61, and the sliding base 61 is arranged on the guide rail 632 and can slide on the guide rail; the forming roller group 4 and the pressing roller group 5 are fixedly mounted on the mounting frame 62. The mounting frame 62 includes a forming roller mounting seat 621 and a pressing roller mounting seat 623, the forming roller group 4 is mounted on the forming roller mounting seat 621, the forming roller mounting seat 621 is fixedly mounted on the sliding base 61, and the pressing roller group 5 is mounted on the pressing roller mounting seat 623 and fixedly mounted on the sliding base 61. Preferably, the mounting frame 62 also includes a mounting plate, the mounting plate is fixedly mounted on the sliding base 61, and the forming roller mounting seat 621 and the pressing roller mounting seat 623 are fixedly mounted on the mounting plate. The power actuator 2 drives the screw 631 in the propulsion device 63 to rotate, thereby driving the sliding base 61 and the mounting frame 62 to slide on the propulsion device.

[0047] Working principle: The metal strip 9 passes through the forming roller group 4, and by adjusting the gap between the upper and lower concave and convex rollers of each forming roller, it passes through the gap of the concave and convex shapes and is formed into a formed metal strip 10 with a specific cross-section shape. The formed metal strip 10 then passes through the buckling roller group 5 to press against the mandrel 3 and is fixedly connected to the mandrel 3. By adjusting the upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plate 517 of the buckling roller 51, the angle and position of the roller 516 are adjusted to a suitable position. At the same time, the power actuator 2 is started to drive the mandrel 3 to rotate and the screw 631 in the propulsion device 63 to rotate. The screw 631 rotates to drive the sliding base 61 and the mounting frame 62 to move at a uniform speed along the axial direction of the mandrel 3, so that the formed metal strip is spirally wound. The roller 516 is tightly attached to the formed metal strip 10 under the action of the compression spring 515, presses against the spirally wound formed metal strip 10, and squeezes and locks the formed metal strip 10 with each other, forming a spirally wound self-locking buckled structure.

[0048] Advantages of this embodiment:

[0049] The upper and lower concave and convex rollers of the forming roller group are used to press the formed metal strip into a metal strip with a specific cross-section shape, so that the shape of the formed metal strip is stable. By adjusting the front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears of each pressing roller in the pressing roller group to the appropriate angle and position, the formed metal strip can be accurately spirally rolled, so that the formed metal strip can be self-locked and buckled, which significantly improves the stability and quality of the sheath tube. In addition, through the mounting seat, the front and rear adjustment locking plates, the upper and lower adjustment bolts and the angle adjustment gears, the angle and position of the pressing mechanism can be flexibly adjusted to meet the production of sheath tubes with different diameters and pitches; further, through the setting of the pulling mechanism, the pressing roller group and the forming roller group can move at a uniform speed in the axial direction of the mandrel, so that the formed metal strip can be continuously and evenly spirally wound on the surface of the mandrel, thereby ensuring the stability and quality of the sheath tube. Through the setting of the mounting frame, the replacement of the forming roller group and the pressing roller group is more convenient and quick, making the production of different sheath tubes more flexible and convenient.

[0050] Embodiment 3

[0051] like Figures 1 to 4 As shown, a sheath pipe production device, another preferred embodiment of the utility model, the sheath pipe production device, includes a frame 1 and a power actuator 2 arranged on the frame 1, the output end of the power actuator 2 is connected to a core shaft 3, the core shaft 3 can rotate under the drive of the power actuator 2, the frame 1 is provided with a pressing roller group 5 and a forming roller group 4, the forming roller group 4 is at least composed of 1 group of forming rollers connected in series, the forming roller group is preferably 4-12 groups of forming rollers, and the forming roller group is more preferably 6-8 groups of forming rollers, the forming rollers include an upper concave-convex roller 41 and a lower concave-convex roller 42, and the upper concave-convex roller 41 and the lower concave-convex roller 42 cooperate with each other to press the metal strip 9 into a formed metal strip 10 with a specific cross-sectional shape.

[0052] like Figure 5 As shown, the formed metal strip 10 with a specific cross-section includes a middle portion 101, a second curved portion 102 and a third curved portion 103. One end of the middle portion 101 extends and bends downward to form the second curved portion 102, and the other end of the middle portion 101 extends and bends upward to form the third curved portion 103. The middle portion 101 is "Z"-shaped. In other embodiments, other structures may also be used. For example, the middle portion 101 is straight, arc-shaped, etc. The bending deformation angle between the middle portion 101 and the second curved portion 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle portion 101 and the third curved portion 103 is greater than 90° and less than or equal to 180°, which facilitates the self-locking buckling of the formed metal strip.

[0053] The metal strip 9 is formed into a formed metal strip 10 with a specific cross-section shape by the forming roller group, and then enters the pressing roller group 5 to be pressed toward the core shaft 3. Driven by the core shaft 3, the metal strip 10 is spirally wound around the core shaft 3 and self-locked. The pressing roller group 5 includes a mounting platform 52 and a plurality of pressing rollers 51 fixed on the mounting platform 52 and arranged around the core shaft 3. There is at least one pressing roller 51, preferably 2-4, and more preferably 4. The pressing roller 51 includes a mounting base 514 and a pressing mechanism arranged on the mounting base 514. The pressing mechanism includes a shaft 518, a locking nut 511, a roller 516 and a compression spring 515. The shaft 518 is connected to the mounting base 514, and the roller 516 is connected to the bottom of the shaft 518. A compression spring 515 is sleeved on the shaft 518 above the roller 516. The locking nut 511 is arranged above the compression spring 515. The mounting base 514 is fixed on the mounting platform 52, and the roller 516 is used to cooperate with the formed metal strip 10 for pressing. Preferably, the mounting seat is provided with a front-to-back adjustment locking plate 517 and an up-and-down adjustment bolt 512, the shaft 518 is connected to the front-to-back adjustment plate 517, the shaft 518 is connected to the up-and-down adjustment bolt 512, and the up-and-down adjustment bolt 512 is arranged on both sides of the shaft 518, the pressing mechanism comprises an angle adjustment gear 513, the angle adjustment gear 513 is sleeved on the shaft 518, and is arranged between the locking nut 511 and the compression spring 515, by adjusting the up-and-down adjustment bolt 512, the angle adjustment gear 513 and the front-to-back adjustment locking plate 517 respectively adjust the angle and position of the roller 516, and the roller 516 is pressed toward the formed metal strip under the action of the compression spring 515. The angle adjustment gear 513 comprises an outer gear ring and an inner gear, the outer gear is fixed, and the angle of the roller 516 is adjusted by adjusting the meshing position of the inner gear.

[0054] The frame 1 is also provided with a pulling mechanism 6, which includes a sliding base 61, a mounting frame 62 and a propulsion device 63. The mounting frame 62 is fixedly mounted on the sliding base 61, and the sliding base 61 is slidably connected to the propulsion device 63. The propulsion device is arranged on the frame and connected to the power actuator 2; the propulsion device 63 includes a screw rod 631 and a guide rail 632, and the screw rod 631 and the guide rail 632 are arranged parallel to the core shaft 3, and one end of the screw rod 631 is connected to the output end of the power actuator 2; the screw rod 631 passes through the sliding base 61 and is connected to the sliding base in a cooperative manner, and the cooperative connection method can be a threaded connection, and the screw rod 631 can also be replaced by a worm, which is meshed with the sliding base 61, and the sliding base 61 is arranged on the guide rail 632 and can slide on the guide rail; the forming roller group 4 and the pressing roller group 5 are fixedly mounted on the mounting frame 62. The mounting frame 62 includes a forming roller mounting seat 621 and a pressing roller mounting seat 623, the forming roller group 4 is mounted on the forming roller mounting seat 621, the forming roller mounting seat 621 is fixedly mounted on the sliding base 61, and the pressing roller group 5 is mounted on the pressing roller mounting seat 623 and fixedly mounted on the sliding base 61. Preferably, the mounting frame 62 also includes a mounting plate, the mounting plate is fixedly mounted on the sliding base 61, and the forming roller mounting seat 621 and the pressing roller mounting seat 623 are fixedly mounted on the mounting plate. The power actuator 2 drives the screw 631 in the propulsion device 63 to rotate, thereby driving the sliding base 61 and the mounting frame 62 to slide on the propulsion device. The forming roller mounting seat 621 includes a sliding support 6211, a slider 6212 and an adjustment base 6213, the forming roller group 4 is installed on the slider 6212, the slider 6212 is installed on the sliding support 6211 and is slidably connected to the sliding support 6211, the sliding support is fixedly arranged on the sliding base, the adjustment base is arranged on the sliding base, the adjustment base 6213 includes a gear meshing with the slider and a hand wheel connected with the gear, the adjustment base 6213 can drive the slider 6212 to move on the sliding support 6211, and the position of the slider is adjusted by adjusting the base 6213, so that the angle between the forming roller group 4 installed on the slider and the axial direction of the core shaft 3 can be adjusted, thereby changing the spiral winding angle of the formed metal strip 10 and the core shaft 3.

[0055] Working principle: The metal strip 9 passes through the forming roller group 4, and by adjusting the gap between the upper and lower concave and convex rollers of each forming roller, it passes through the gap of the concave and convex shapes and is formed into a formed metal strip 10 with a specific cross-section shape. The formed metal strip 10 then passes through the buckling roller group 5 and is pressed against the mandrel 3 and fixedly connected to the mandrel 3. The angle and position of the roller 516 are adjusted to a suitable position by adjusting the upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plate 517 of the buckling roller 51. The position of the slider 6212 on the sliding bracket 6212 is adjusted by adjusting the base 6213, and the angle between the forming roller group 4 and the mandrel 3 in the axial direction is adjusted to change the spiral winding angle of the formed metal strip 10. At the same time, the power actuator 2 is started to drive the core shaft 3 to rotate and the screw 631 in the propulsion device 63 to rotate. The screw 631 rotates to drive the sliding base 61 and the mounting frame 62 to move at a uniform speed along the axial direction of the core shaft 3, so that the formed metal belt is spirally wound. The roller 516 is tightly attached to the formed metal belt 10 under the action of the compression spring 515, and presses the formed metal belt 10 that is spirally wound and rolled into it, squeezing and locking the formed metal belt 10 with each other to form a spirally wound self-locking structure.

[0056] Advantages of this embodiment:

[0057] The upper and lower concave and convex rollers of the forming roller group are used to press the formed metal strip into a metal strip with a specific cross-section shape, so that the shape of the formed metal strip is stable. By adjusting the front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears of each buckling roller in the buckling roller group to the appropriate angle and position, the formed metal strip can be accurately spirally rolled, so that the formed metal strip can be self-locked and buckled, which significantly improves the stability and quality of the sheath tube. In addition, through the mounting seat, the front and rear adjustment locking plates, the upper and lower adjustment bolts and the angle adjustment gears, the angle and position of the buckling mechanism can be flexibly adjusted to meet the production of sheath tubes with different diameters and pitches. Further, through the setting of the pulling mechanism, the buckling roller group and the forming roller group can move at a uniform speed in the axial direction of the mandrel, so that the formed metal strip can be continuously and evenly spirally wound on the surface of the mandrel, thereby ensuring the stability and quality of the sheath tube. Through the setting of the mounting frame, the replacement of the forming roller group and the buckling roller group is more convenient and quick, making the production of different sheath tubes more flexible and convenient. A sliding base, a slider and an adjustment base are arranged on the forming roller mounting seat, which can easily and conveniently adjust the winding angle of the formed metal strip relative to the core shaft, thereby facilitating the production of sheath pipes with different winding angles.

[0058] Embodiment 4

[0059] like Figures 1 to 4As shown, a sheath pipe production device, another preferred embodiment of the utility model, the sheath pipe production device, includes a frame 1 and a power actuator 2 arranged on the frame 1, the output end of the power actuator 2 is connected to a core shaft 3, the core shaft 3 can rotate under the drive of the power actuator 2, the frame 1 is provided with a pressing roller group 5 and a forming roller group 4, the forming roller group 4 is at least composed of 1 group of forming rollers connected in series, the forming roller group is preferably 4-12 groups of forming rollers, and the forming roller group is more preferably 6-8 groups of forming rollers, the forming rollers include an upper concave-convex roller 41 and a lower concave-convex roller 42, and the upper concave-convex roller 41 and the lower concave-convex roller 42 cooperate with each other to press the metal strip 9 into a formed metal strip 10 with a specific cross-sectional shape.

[0060] like Figure 5 As shown, the formed metal strip 10 with a specific cross-section includes a middle portion 101, a second curved portion 102 and a third curved portion 103. One end of the middle portion 101 extends and bends downward to form the second curved portion 102, and the other end of the middle portion 101 extends and bends upward to form the third curved portion 103. The middle portion 101 is "Z"-shaped. In other embodiments, other structures may also be used. For example, the middle portion 101 is straight, arc-shaped, etc. The bending deformation angle between the middle portion 101 and the second curved portion 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle portion 101 and the third curved portion 103 is greater than 90° and less than or equal to 180°, which facilitates the self-locking buckling of the formed metal strip.

[0061] The metal strip 9 is formed into a formed metal strip 10 with a specific cross-section shape by the forming roller group, and then enters the pressing roller group 5 to be pressed toward the core shaft 3. Driven by the core shaft 3, the metal strip 10 is spirally wound around the core shaft 3 and self-locked. The pressing roller group 5 includes a mounting platform 52 and a plurality of pressing rollers 51 fixed on the mounting platform 52 and arranged around the core shaft 3. There is at least one pressing roller 51, preferably 2-4, and more preferably 4. The pressing roller 51 includes a mounting base 514 and a pressing mechanism arranged on the mounting base 514. The pressing mechanism includes a shaft 518, a locking nut 511, a roller 516 and a compression spring 515. The shaft 518 is connected to the mounting base 514, and the roller 516 is connected to the bottom of the shaft 518. A compression spring 515 is sleeved on the shaft 518 above the roller 516. The locking nut 511 is arranged above the compression spring 515. The mounting base 514 is fixed on the mounting platform 52, and the roller 516 is used to cooperate with the formed metal strip 10 for pressing. Preferably, the mounting seat is provided with a front-to-back adjustment locking plate 517 and an up-and-down adjustment bolt 512, the shaft 518 is connected to the front-to-back adjustment plate 517, the shaft 518 is connected to the up-and-down adjustment bolt 512, and the up-and-down adjustment bolt 512 is arranged on both sides of the shaft 518, the pressing mechanism comprises an angle adjustment gear 513, the angle adjustment gear 513 is sleeved on the shaft 518, and is arranged between the locking nut 511 and the compression spring 515, by adjusting the up-and-down adjustment bolt 512, the angle adjustment gear 513 and the front-to-back adjustment locking plate 517 respectively adjust the angle and position of the roller 516, and the roller 516 is pressed toward the formed metal strip under the action of the compression spring 515. The angle adjustment gear 513 comprises an outer gear ring and an inner gear, the outer gear is fixed, and the angle of the roller 516 is adjusted by adjusting the meshing position of the inner gear.

[0062] The frame 1 is also provided with a pulling mechanism 6, which includes a sliding base 61, a mounting frame 62 and a propulsion device 63. The mounting frame 62 is fixedly mounted on the sliding base 61, and the sliding base 61 is slidably connected to the propulsion device 63. The propulsion device is arranged on the frame and connected to the power actuator 2; the propulsion device 63 includes a screw rod 631 and a guide rail 632, and the screw rod 631 and the guide rail 632 are arranged parallel to the core shaft 3, and one end of the screw rod 631 is connected to the output end of the power actuator 2; the screw rod 631 passes through the sliding base 61 and is connected to the sliding base in a cooperative manner, and the cooperative connection method can be a threaded connection, and the screw rod 631 can also be replaced by a worm, which is meshed with the sliding base 61, and the sliding base 61 is arranged on the guide rail 632 and can slide on the guide rail; the forming roller group 4 and the pressing roller group 5 are fixedly mounted on the mounting frame 62. The mounting frame 62 includes a forming roller mounting seat 621 and a pressing roller mounting seat 623, the forming roller group 4 is mounted on the forming roller mounting seat 621, the forming roller mounting seat 621 is fixedly mounted on the sliding base 61, and the pressing roller group 5 is mounted on the pressing roller mounting seat 623 and fixedly mounted on the sliding base 61. Preferably, the mounting frame 62 also includes a mounting plate, the mounting plate is fixedly mounted on the sliding base 61, and the forming roller mounting seat 621 and the pressing roller mounting seat 623 are fixedly mounted on the mounting plate. The power actuator 2 drives the screw 631 in the propulsion device 63 to rotate, thereby driving the sliding base 61 and the mounting frame 62 to slide on the propulsion device. The forming roller mounting seat 621 includes a sliding support 6211, a slider 6212 and an adjustment base 6213, the forming roller group 4 is installed on the slider 6212, the slider 6212 is installed on the sliding support 6211 and is slidably connected to the sliding support 6211, the sliding support is fixedly arranged on the sliding base, the adjustment base is arranged on the sliding base, the adjustment base 6213 includes a gear meshing with the slider and a hand wheel connected with the gear, the adjustment base 6213 can drive the slider 6212 to move on the sliding support 6211, and the position of the slider is adjusted by adjusting the base 6213, so that the angle between the forming roller group 4 installed on the slider and the axial direction of the core shaft 3 can be adjusted, thereby changing the spiral winding angle of the formed metal strip 10 and the core shaft 3.

[0063] The frame 1 is provided with a metal strip feeding device 8, which includes a feeding frame 81 and a feeding wheel 82. The feeding wheel 82 is mounted on the feeding frame 81. The metal strip feeding device 8 is preferably mounted on a mounting frame 62. The mounting frame 62 is preferably provided with a metal strip feeding device mounting seat 622. More preferably, the feeding frame 81 of the metal strip feeding device 8 is mounted on the feeding device mounting seat 622. The metal strip feeding device 8 can ensure that the metal strip can stably and continuously enter the forming roller group 4, providing a reliable basis for subsequent forming and crimping operations.

[0064] Working principle: Through the setting of the feeding device 8, the metal strip 9 can be stably and continuously fed into the forming roller group 4. By adjusting the gap between the upper and lower concave and convex rollers of each forming roller, the metal strip 9 can pass through the gap between the concave and convex shapes and be formed into a formed metal strip 10 with a specific cross-section shape. The formed metal strip 10 is then pressed toward the mandrel 3 through the buckling roller group 5 and fixedly connected to the mandrel 3. By adjusting the upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plate 517 of the buckling roller 51, the angle and position of the roller 516 can be adjusted to a suitable position. By adjusting the position of the slider 6212 on the sliding bracket 6212 by adjusting the base 6213, the angle between the forming roller group 4 and the mandrel 3 in the axial direction is adjusted, and the spiral winding angle of the formed metal strip 10 is changed. At the same time, the power actuator 2 is started to drive the core shaft 3 to rotate and the screw 631 in the propulsion device 63 to rotate. The screw 631 rotates to drive the sliding base 61 and the mounting frame 62 to move at a uniform speed along the axial direction of the core shaft 3, so that the formed metal belt 10 is spirally wound. The roller 516 is tightly attached to the formed metal belt 10 under the action of the compression spring 515, and presses the formed metal belt 10 that is spirally wound and rolled into it, squeezing and locking the formed metal belt 10 with each other to form a spirally wound self-locking structure.

[0065] Advantages of this embodiment:

[0066] The upper and lower concave and convex rollers of the forming roller group are used to press the formed metal strip into a metal strip with a specific cross-section shape, so that the shape of the formed metal strip is stable. By adjusting the front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears of each pressing roller in the pressing roller group to the appropriate angle and position, precise spiral rolling of the formed metal strip is achieved, so that the formed metal strip is self-locking and buckled, which significantly improves the stability and quality of the sheath pipe. In addition, through the mounting seat, front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears, the angle and position of the pressing mechanism can be flexibly adjusted to meet the production of sheath pipes with different diameters and pitches. By setting a metal strip feeding device on the frame, the metal strip can be automatically and continuously fed into the forming roller group for processing, which reduces the difficulty of operation, reduces labor costs, and improves production efficiency.

[0067] Embodiment 5

[0068] like Figures 1 to 4 As shown, a sheath pipe production device, another preferred embodiment of the utility model, the sheath pipe production device, includes a frame 1 and a power actuator 2 arranged on the frame 1, the output end of the power actuator 2 is connected to a core shaft 3, the core shaft 3 can rotate under the drive of the power actuator 2, the frame 1 is provided with a pressing roller group 5 and a forming roller group 4, the forming roller group 4 is at least composed of 1 group of forming rollers connected in series, the forming roller group is preferably 4-12 groups of forming rollers, and the forming roller group is more preferably 6-8 groups of forming rollers, the forming rollers include an upper concave-convex roller 41 and a lower concave-convex roller 42, and the upper concave-convex roller 41 and the lower concave-convex roller 42 cooperate with each other to press the metal strip 9 into a formed metal strip 10 with a specific cross-sectional shape.

[0069] like Figure 5 As shown, the formed metal strip 10 with a specific cross-section includes a middle portion 101, a second curved portion 102 and a third curved portion 103. One end of the middle portion 101 extends and bends downward to form the second curved portion 102, and the other end of the middle portion 101 extends and bends upward to form the third curved portion 103. The middle portion 101 is "Z" shaped. In other embodiments, other structures may also be used. For example, the middle portion 101 is straight, arc-shaped, etc. The bending deformation angle between the middle portion 101 and the second curved portion 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle portion 101 and the third curved portion 103 is greater than 90° and less than or equal to 180°, which facilitates the self-locking buckling of the formed metal strip 10.

[0070] The metal strip 9 is formed into a formed metal strip 10 with a specific cross-section shape by the forming roller group, and then enters the pressing roller group 5 to be pressed toward the core shaft 3. Driven by the core shaft 3, the metal strip 10 is spirally wound around the core shaft 3 and self-locked. The pressing roller group 5 includes a mounting platform 52 and a plurality of pressing rollers 51 fixed on the mounting platform 52 and arranged around the core shaft 3. There is at least one pressing roller 51, preferably 2-4, and more preferably 4. The pressing roller 51 includes a mounting base 514 and a pressing mechanism arranged on the mounting base 514. The pressing mechanism includes a shaft 518, a locking nut 511, a roller 516 and a compression spring 515. The shaft 518 is connected to the mounting base 514, and the roller 516 is connected to the bottom of the shaft 518. A compression spring 515 is sleeved on the shaft 518 above the roller 516. The locking nut 511 is arranged above the compression spring 515. The mounting base 514 is fixed on the mounting platform 52, and the roller 516 is used to cooperate with the formed metal strip 10 for pressing. Preferably, the mounting seat is provided with a front-to-back adjustment locking plate 517 and an up-and-down adjustment bolt 512, the shaft 518 is connected to the front-to-back adjustment plate 517, the shaft 518 is connected to the up-and-down adjustment bolt 512, and the up-and-down adjustment bolt 512 is arranged on both sides of the shaft 518, the pressing mechanism comprises an angle adjustment gear 513, the angle adjustment gear 513 is sleeved on the shaft 518, and is arranged between the locking nut 511 and the compression spring 515, by adjusting the up-and-down adjustment bolt 512, the angle adjustment gear 513 and the front-to-back adjustment locking plate 517 respectively adjust the angle and position of the roller 516, and the roller 516 is pressed toward the formed metal strip under the action of the compression spring 515. The angle adjustment gear 513 comprises an outer gear ring and an inner gear, the outer gear is fixed, and the angle of the roller 516 is adjusted by adjusting the meshing position of the inner gear.

[0071] The frame 1 is also provided with a pulling mechanism 6, which includes a sliding base 61, a mounting frame 62 and a propulsion device 63. The mounting frame 62 is fixedly mounted on the sliding base 61, and the sliding base 61 is slidably connected to the propulsion device 63. The propulsion device is arranged on the frame and connected to the power actuator 2; the propulsion device 63 includes a screw rod 631 and a guide rail 632, and the screw rod 631 and the guide rail 632 are arranged parallel to the core shaft 3, and one end of the screw rod 631 is connected to the output end of the power actuator 2; the screw rod 631 passes through the sliding base 61 and is connected to the sliding base in a cooperative manner, and the cooperative connection method can be a threaded connection, and the screw rod 631 can also be replaced by a worm, which is meshed with the sliding base 61, and the sliding base 61 is arranged on the guide rail 632 and can slide on the guide rail; the forming roller group 4 and the pressing roller group 5 are fixedly mounted on the mounting frame 62. The mounting frame 62 includes a forming roller mounting seat 621 and a pressing roller mounting seat 623, the forming roller group 4 is mounted on the forming roller mounting seat 621, the forming roller mounting seat 621 is fixedly mounted on the sliding base 61, and the pressing roller group 5 is mounted on the pressing roller mounting seat 623 and fixedly mounted on the sliding base 61. Preferably, the mounting frame 62 also includes a mounting plate, the mounting plate is fixedly mounted on the sliding base 61, and the forming roller mounting seat 621 and the pressing roller mounting seat 623 are fixedly mounted on the mounting plate. The power actuator 2 drives the screw 631 in the propulsion device 63 to rotate, thereby driving the sliding base 61 and the mounting frame 62 to slide on the propulsion device. The forming roller mounting seat 621 includes a sliding support 6211, a slider 6212 and an adjusting base 6213, the forming roller group 4 is installed on the slider 6212, the slider 6212 is installed on the sliding support 6211 and is slidably connected to the sliding support 6211, the sliding support is fixedly arranged on the sliding base, the adjusting base is arranged on the sliding base, the adjusting base 6213 includes a gear meshing with the slider and a hand wheel connected with the gear, the adjusting base 6213 can drive the slider 6212 to move on the sliding support 6211, and the position of the slider is adjusted by adjusting the base 6213, so that the angle between the forming roller group 4 installed on the slider and the axial direction of the core shaft 3 can be adjusted, thereby changing the spiral winding angle of the formed metal strip 10 and the core shaft 3, thereby processing different sheath tubes.

[0072] The frame 1 is provided with a metal strip feeding device 8, which includes a feeding frame 81 and a feeding wheel 82. The metal strip feeding wheel 82 is mounted on the feeding frame 81. The metal strip feeding device 8 is preferably mounted on a mounting frame 62. The mounting frame 62 is preferably provided with a feeding device mounting seat 622. More preferably, the feeding frame 81 of the metal strip feeding device 8 is mounted on the feeding device mounting seat 622. The metal strip feeding device 8 can ensure that the metal strip can stably and continuously enter the forming roller group 4, providing a reliable basis for subsequent forming and crimping operations.

[0073] At least one guide roller is provided on the pulling mechanism 6, and the guide roller 7 is provided with a metal belt guide groove, which is used to guide the metal belt. Preferably, three guide rollers are provided, one guide roller 7 is provided on the sliding base 61 close to the feeding device, one guide roller 7 is provided at the other end of the sliding base 61 away from the feeding device, and another guide roller 7 is provided on the forming roller mounting seat 621. The setting of the guide roller group plays a role in supporting and guiding the unloading of the metal belt by the feeding belt, ensuring that the metal belt enters the forming roller group 4 according to the predetermined path and direction.

[0074] Working principle: Through the setting of the feeding device 8 and the guide roller group, the metal strip 9 can be stabilized and enter the forming roller group 4 in a preset path and direction. By adjusting the gap between the upper and lower concave and convex rollers of each forming roller, it can pass through the gap between the concave and convex shapes and be formed into a formed metal strip 10 with a specific cross-section shape. The formed metal strip 10 is then pressed toward the mandrel 3 through the buckling roller group 5 and fixedly connected to the mandrel 3. By adjusting the upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plate 517 of the buckling roller group 5, the angle and position of the roller 516 are adjusted to a suitable position. By adjusting the position of the slider 6212 on the sliding bracket by adjusting the base 6213, the angle between the forming roller group 4 and the mandrel 3 in the axial direction is adjusted, and the spiral winding angle of the formed metal strip 10 is changed. At the same time, the power actuator 2 is started to drive the core shaft 3 to rotate and the screw 631 in the propulsion device 63 to rotate. The screw 631 rotates to drive the sliding base 61 and the mounting frame 62 to move at a uniform speed along the axial direction of the core shaft 3, so that the formed metal belt 10 is spirally wound. The roller 516 is tightly attached to the formed metal belt 10 under the action of the compression spring 515, and presses the formed metal belt 10 that is spirally wound and rolled into it, squeezing and locking the formed metal belt 10 with each other to form a spirally wound self-locking structure.

[0075] Advantages of this embodiment:

[0076] The upper and lower concave and convex rollers of the forming roller group are used to press the formed metal strip into a metal strip with a specific cross-section shape, so that the shape of the formed metal strip is stable. By adjusting the front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears of each pressing roller in the pressing roller group to the appropriate angle and position, the formed metal strip can be accurately spirally rolled, so that the formed metal strip can be self-locked and buckled, which significantly improves the stability and quality of the jacket tube. In addition, through the mounting seat, front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears, the angle and position of the pressing mechanism can be flexibly adjusted to meet the production of jacket tubes with different diameters and pitches. Through the setting of the guide roller, after the metal strip is unloaded from the feeding device, it is guided to move forward along the predetermined path, support the metal strip to avoid bending or deformation, and adjust the tension of the metal strip to ensure stability during the production process.

[0077] Embodiment 6

[0078] like Figures 1 to 4 As shown, a sheath pipe production device, another preferred embodiment of the utility model, the sheath pipe production device, includes a frame 1 and a power actuator 2 arranged on the frame 1, the output end of the power actuator 2 is connected to a core shaft 3, the core shaft 3 can rotate under the drive of the power actuator 2, the frame 1 is provided with a pressing roller group 5 and a forming roller group 4, the forming roller group 4 is at least composed of 1 group of forming rollers connected in series, the forming roller group 4 is preferably 4-12 groups of forming rollers, and the forming roller group 4 is more preferably 6-8 groups of forming rollers, the forming rollers include an upper concave-convex roller 41 and a lower concave-convex roller 42, and the upper concave-convex roller 41 and the lower concave-convex roller 42 cooperate with each other to press the metal strip 9 into a formed metal strip 10 with a specific cross-sectional shape.

[0079] like Figure 5 As shown, the formed metal strip 10 with a specific cross-section includes a middle portion 101, a second curved portion 102 and a third curved portion 103. One end of the middle portion 101 extends and bends downward to form the second curved portion 102, and the other end of the middle portion 101 extends and bends upward to form the third curved portion 103. The middle portion 101 is "Z" shaped. In other embodiments, other structures may also be used. For example, the middle portion 101 is straight, arc-shaped, etc. The bending deformation angle between the middle portion 101 and the second curved portion 102 is greater than 90° and less than or equal to 180°. The bending deformation angle between the middle portion 101 and the third curved portion 103 is greater than 90° and less than or equal to 180°, which facilitates the self-locking buckling of the formed metal strip 10.

[0080] The metal strip 9 is formed into a formed metal strip 10 with a specific cross-section shape by the forming roller group, and then enters the pressing roller group 5 to be pressed toward the core shaft 3. Driven by the core shaft 3, the metal strip 10 is spirally wound around the core shaft 3 and self-locked. The pressing roller group 5 includes a mounting platform 52 and a plurality of pressing rollers 51 fixed on the mounting platform 52 and arranged around the core shaft 3. There is at least one pressing roller 51, preferably 2-4, and more preferably 4. The pressing roller 51 includes a mounting base 514 and a pressing mechanism arranged on the mounting base 514. The pressing mechanism includes a shaft 518, a locking nut 511, a roller 516 and a compression spring 515. The shaft 518 is connected to the mounting base 514, and the roller 516 is connected to the bottom of the shaft 518. A compression spring 515 is sleeved on the shaft 518 above the roller 516. The locking nut 511 is arranged above the compression spring 515. The mounting base 514 is fixed on the mounting platform 52, and the roller 516 is used to cooperate with the formed metal strip 10 for pressing. Preferably, the mounting seat is provided with a front-to-back adjustment locking plate 517 and an up-and-down adjustment bolt 512, the shaft 518 is connected to the front-to-back adjustment plate 517, the shaft 518 is connected to the up-and-down adjustment bolt 512, and the up-and-down adjustment bolt 512 is arranged on both sides of the shaft 518, the pressing mechanism comprises an angle adjustment gear 513, the angle adjustment gear 513 is sleeved on the shaft 518, and is arranged between the locking nut 511 and the compression spring 515, by adjusting the up-and-down adjustment bolt 512, the angle adjustment gear 513 and the front-to-back adjustment locking plate 517 respectively adjust the angle and position of the roller 516, and the roller 516 is pressed toward the formed metal strip under the action of the compression spring 515. The angle adjustment gear 513 comprises an outer gear ring and an inner gear, the outer gear is fixed, and the angle of the roller 516 is adjusted by adjusting the meshing position of the inner gear.

[0081] The frame 1 is also provided with a pulling mechanism 6, which includes a sliding base 61, a mounting frame 62 and a propulsion device 63. The mounting frame 62 is fixedly mounted on the sliding base 61, and the sliding base 61 is slidably connected to the propulsion device 63. The propulsion device is arranged on the frame and connected to the power actuator 2; the propulsion device 63 includes a screw rod 631 and a guide rail 632, and the screw rod 631 and the guide rail 632 are arranged parallel to the core shaft 3, and one end of the screw rod 631 is connected to the output end of the power actuator 2; the screw rod 631 passes through the sliding base 61 and is connected to the sliding base in a cooperative manner, and the cooperative connection method can be a threaded connection, and the screw rod 631 can also be replaced by a worm, which is meshed with the sliding base 61, and the sliding base 61 is arranged on the guide rail 632 and can slide on the guide rail; the forming roller group 4 and the pressing roller group 5 are fixedly mounted on the mounting frame 62. The mounting frame 62 includes a forming roller mounting seat 621 and a pressing roller mounting seat 623, the forming roller group 4 is mounted on the forming roller mounting seat 621, the forming roller mounting seat 621 is fixedly mounted on the sliding base 61, and the pressing roller group 5 is mounted on the pressing roller mounting seat 623 and fixedly mounted on the sliding base 61. Preferably, the mounting frame 62 also includes a mounting plate, the mounting plate is fixedly mounted on the sliding base 61, and the forming roller mounting seat 621 and the pressing roller mounting seat 623 are fixedly mounted on the mounting plate. The power actuator 2 drives the screw 631 in the propulsion device 63 to rotate, thereby driving the sliding base 61 and the mounting frame 62 to slide on the propulsion device. The forming roller mounting seat 621 includes a sliding support 6211, a slider 6212 and an adjusting base 6213, the forming roller group 4 is installed on the slider 6212, the slider 6212 is installed on the sliding support 6211 and is slidably connected to the sliding support 6211, the sliding support is fixedly arranged on the sliding base, the adjusting base is arranged on the sliding base, the adjusting base 6213 includes a gear meshing with the slider and a hand wheel connected with the gear, the adjusting base 6213 can drive the slider 6212 to move on the sliding support 6211, and the position of the slider is adjusted by adjusting the base 6213, so that the angle between the forming roller group 4 installed on the slider and the axial direction of the core shaft 3 can be adjusted, thereby changing the spiral winding angle of the formed metal strip 10 and the core shaft 3, thereby processing different sheath tubes.

[0082] The frame 1 is provided with a metal strip feeding device 8, which includes a feeding frame 81 and a feeding wheel 82. The feeding wheel 82 is mounted on the feeding frame 81. The metal strip feeding device 8 is preferably mounted on a mounting frame, and the mounting frame is preferably provided with a feeding device mounting seat 622. More preferably, the feeding frame 81 of the metal strip feeding device 8 is mounted on the feeding device mounting seat 622. The metal strip feeding device 8 can ensure that the metal strip can stably and continuously enter the forming roller group 4, providing a reliable basis for subsequent forming and crimping operations.

[0083] At least one guide roller is provided on the pulling mechanism 6, and the guide roller 7 is provided with a metal belt guide groove, which is used to guide the metal belt. Preferably, three guide rollers are provided, one guide roller 7 is provided on the sliding base 61 close to the feeding device, one guide roller 7 is provided on the other end of the sliding base 61 away from the feeding device 8, and another guide roller 7 is provided on the forming roller group mounting seat. Through the provision of the guide roller group, the metal belt is supported and guided when the feeding belt is unloaded, ensuring that the metal belt enters the forming roller group 4 according to the predetermined path and direction.

[0084] A lubricating oil device 11 is also provided on the mounting frame 62, and the lubricating oil device 11 includes a lubricating oil control switch 112. One end of the lubricating oil control switch 112 is connected to the lubricating oil input conduit 111, and the other end is connected to a nozzle conduit 113 with a nozzle 114. The nozzle 114 sprays lubricating liquid on the surface of the formed metal strip 10 to reduce the friction between the pressing roller group 5 and the formed metal strip 10.

[0085] Working principle: Through the setting of the feeding device 8 and the guide roller group, the metal strip 9 can be stabilized and enter the forming roller group 4 in a preset path and direction. By adjusting the gap between the upper and lower concave and convex rollers of each forming roller, it can pass through the gap of the concave and convex shape and be formed into a formed metal strip 10 with a specific cross-section shape. The formed metal strip 10 is then pressed toward the mandrel 3 through the buckling roller group 5 and fixedly connected to the mandrel 3. By adjusting the upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plate 517 of the buckling roller group 5, the angle and position of the roller 516 are adjusted to a suitable position. By adjusting the position of the slider 6212 on the sliding support 6211 by adjusting the base 6213, the relative angle of the forming roller group 4 relative to the drawing mechanism 6 is adjusted, and the spiral winding angle of the formed metal strip 10 is changed. At the same time, the power actuator 2 is started to drive the core shaft 3 to rotate and the screw 631 in the propulsion device 63 to rotate. The screw 631 rotates and drives the pulling mechanism 6 to move at a uniform speed along the axial direction of the core shaft 3, so that the formed metal strip 10 is spirally wound. The roller 516 is tightly attached to the formed metal strip 10 under the action of the compression spring 515, and presses the spirally wound formed metal strip 10, and squeezes and locks the formed metal strip 10 to form a spirally wound self-locking structure. The friction between the buckling roller group 5 and the formed metal strip 10 is reduced by setting the lubricating oil device 11.

[0086] Advantages of this embodiment:

[0087] The upper and lower concave and convex rollers of the forming roller group are used to press the formed metal strip into a metal strip with a specific cross-section shape, so that the shape of the formed metal strip is stable. By adjusting the front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears of each pressing roller in the pressing roller group to the appropriate angle and position, precise spiral rolling of the formed metal strip is achieved, so that the formed metal strip is self-locking and buckled, which significantly improves the stability and quality of the jacket tube. In addition, through the mounting seat, front and rear adjustment locking plates, upper and lower adjustment bolts and angle adjustment gears, the angle and position of the pressing mechanism can be flexibly adjusted to meet the production of jacket tubes with different diameters and pitches. By setting up a lubricating oil device, the friction between the pressing roller and the formed metal strip is reduced, the wear of the pressing roller is reduced, and the practical life of the pressing roller is extended.

[0088] Embodiment 7

[0089] A method for producing a sheath pipe comprises the following steps:

[0090] S01: The metal strip is rolled into a shaped metal strip of a preset shape by a forming roller group;

[0091] The metal strip is unloaded from the feeding device, guided by the guide roller, and then enters the forming roller group. It is rolled into a formed metal strip of a preset shape under the action of the upper and lower concave and convex rollers of the forming roller group.

[0092] S02: The formed metal strip passes through the pressing roller set and is fixedly connected to the mandrel;

[0093] The formed metal strip passes through the pressing roller to fix the formed metal strip to the core shaft.

[0094] S03: The formed metal strip is pressed toward the mandrel by the pressing roller group and is spirally wound around the mandrel under the rotation of the mandrel and self-locked to form a sheath tube.

[0095] Adjust the upper and lower adjustment bolts, angle adjustment gear, and front and rear adjustment locking plates of the pressing roller respectively to adjust the angle and position of the roller to a suitable position. The roller is pressed against the formed metal belt under the action of the compression spring. Start the power actuator to drive the core shaft to rotate and the mounting frame to move axially. The pressing roller presses against the formed metal belt to make it spirally wrapped around the core shaft. The formed metal belts are squeezed and interlocked with each other to form a spirally wound and self-locking sheath tube.

[0096] Advantages of this embodiment:

[0097] The metal strip is rolled into a preset shape by a forming roller group, and the formed metal strip is pressed toward the mandrel by the buckling roller and spirally wound around the mandrel under the rotation of the mandrel to form a sheath tube by self-locking buckling, so that the sheath tube is firmly connected and not easy to fall off, thereby improving the quality of the sheath tube. At the same time, the process of this method is simple, suitable for metal strips and mandrels of different materials, and has a wide range of applications.

[0098] Embodiment 8

[0099] A method for producing a sheath pipe, taking the equipment in Example 6 as an example, comprises the following steps:

[0100] S01: The metal strip is rolled into a shaped metal strip of a preset shape by a forming roller group;

[0101] The metal strip 9 is unloaded by the feeding device 8, guided by the guide roller 7, and then enters the forming roller group 4. The preferred 8-group forming roller is adopted, and the upper and lower concave and convex rollers of the 8-group forming roller are used to roll the metal strip 10 into a preset shape; by adjusting the position of the slider on the forming mounting seat on the sliding support, the relative angle between the forming roller group 4 and the mounting frame is adjusted to reach a preset angle, so that the formed metal strip enters the pressing roller group at a preset angle.

[0102] S02: The formed metal strip passes through the pressing roller set and is fixedly connected to the mandrel;

[0103] The profiled metal strip 10 passes through the pressing roller set 5 , and the profiled metal strip 10 and the core shaft 3 are fixed at a preset angle.

[0104] S03: The formed metal strip is pressed toward the mandrel by the pressing roller group and is spirally wound around the mandrel under the rotation of the mandrel and self-locked to form a sheath tube.

[0105] The crimping roller group 5 in the equipment, preferably 4 groups of crimping rollers 51, is used for crimping. The upper and lower adjustment bolts 512, the angle adjustment gear 513, and the front and rear adjustment locking plates 517 of each group of crimping rollers 51 are adjusted respectively to adjust the angle and position of the roller 516 to a suitable position. The roller 516 is pressed against the formed metal strip 10 under the action of the compression spring 515. The power actuator 2 is started, the core shaft 3 rotates, and the pulling mechanism 6 moves axially along the core shaft 3 under the drive of the propulsion device 63. The crimping roller group 5 is pressed against the formed metal strip 10, so that it is spirally wrapped around the core shaft 3. The formed metal strip 10 is squeezed and interlocked with each other to form a spirally wound and self-locking sheath tube.

[0106] In step 2, the forming roller group 4 bends the metal strip through 8 groups of forming rollers in 8 passes to form a formed metal strip with a specific cross-sectional shape. The angles of each bending portion formed in each pass to form a metal strip with a specific cross-sectional shape are as follows:

[0107]

[0108] Advantages of this embodiment:

[0109] By adopting 8 groups of forming rollers in the equipment of the utility model to roll the metal strip, the shape of the formed metal strip and the angle of the bending portion can be controlled more accurately; by using 4 groups of crimping rollers 51 to crimp the formed metal strip, the crimping strength and crimping position can be better controlled, so that the formed metal strip can be more tightly wrapped around the core shaft 3, thereby improving the connection firmness and stability of the sheath pipe.

[0110] Advantages of the implementation of the utility model: the forming roller group forms the metal strip into a formed metal strip with a specific cross-sectional shape. The formed metal strip is pressed against the core shaft by the forming roller group, and the angle and position of the roller are adjusted to a suitable position by adjusting the upper and lower adjustment bolts, angle adjustment gears, and front and rear adjustment locking plates of the pressing rollers respectively. The rollers are pressed against the formed metal strip under the action of the compression springs, and press against the spirally wound formed metal strip, and squeeze and lock the formed metal strips with each other to form a spiral winding structure; the angle and position of the pressing mechanism can be flexibly adjusted through the mounting seat, front and rear adjustment locking plates, upper and lower adjustment bolts, and angle adjustment gears to meet the production of sheath pipes with different diameters and pitches; through the setting of the pulling mechanism, the pressing roller group and the forming roller group can move at a uniform speed in the axial direction of the core shaft, so that the formed metal strip can be continuously and evenly spirally wound on the surface of the core shaft, thereby ensuring the stability and quality of the sheath pipe; through the setting of the mounting frame, the forming roller group and the pressing roller The replacement of the group is more convenient and quick, making the production of different sheath tubes more flexible and convenient; by setting a metal belt feeding device and a guide roller, the guide roller guides the metal belt unloaded by the feeding device, so that the metal belt can enter the forming roller group 4 stably and continuously according to the preset path and direction, ensuring the stability of the production process; by setting a lubricating oil device 11 to spray lubricating liquid on the surface of the formed metal belt, it plays a role in reducing the friction between the roller and the formed metal belt, and improving the service life of the buckling roller; through the above-mentioned sheath tube device, a sheath tube can be produced, which adopts a spiral winding structure of a formed metal belt, and a formed metal belt with a specific cross-section is spirally wound along the axial direction to form a sheath tube by self-locking buckling. The sheath tube has good stability and bending performance, can effectively resist external interference to the inside, and protect the internal flexible shaft from damage. At the same time, the sheath tube also has the function of shaping and torsion resistance, which can not only adapt to the "rigid" strength conditions in remote operation, but also meet the "flexible" compliance conditions.

[0111] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A jacket tube production device, used for processing a metal strip into a jacket tube, comprising a frame and a power actuator arranged on the frame, characterized in that: A core shaft is connected to the output end of the power actuator, and the core shaft can rotate under the drive of the power actuator. The frame is also provided with a pressing roller group and a forming roller group. The forming roller group is used to roll the metal strip into a formed metal strip of a preset shape, and the pressing roller group is used to press the formed metal strip against the core shaft so that the formed metal strip can be spirally wound around the core shaft driven by the core shaft and self-locked to form a sheath tube.

2. The sheath pipe production device according to claim 1, characterized in that: The cross-sectional shape of the preset shaped metal strip includes a middle portion, a second curved portion and a third curved portion, one end of the middle portion extends and bends downward to form the second curved portion, and the other end of the middle portion extends and bends upward to form the third curved portion.

3. The jacket pipe production device according to claim 1, characterized in that: The forming roller group includes at least one group of forming rollers connected in series, and the forming rollers include an upper concave-convex roller and a lower concave-convex roller, and the upper concave-convex roller and the lower concave-convex roller cooperate with each other to press the metal strip to form a formed metal strip with a cross section of a preset shape.

4. The sheath pipe production device according to claim 1, characterized in that: The frame is provided with a pulling and drawing mechanism, which includes a propulsion device, a sliding base and a mounting frame. The mounting frame is fixedly mounted on the sliding base. The sliding base is slidably connected to the propulsion device. The propulsion device is arranged on the frame and connected to the power actuator. The forming roller group and the pressing roller group are fixedly arranged on the mounting frame.

5. The sheath pipe production device according to claim 4, characterized in that: The propulsion device includes a screw rod and a guide rail. The screw rod passes through the sliding base and is connected to the sliding base. One end of the screw rod is connected to the output end of the power actuator. The guide rail is set on the frame. The sliding base is set on the guide rail and is slidably connected to the guide rail.

6. The sheath pipe production device according to claim 4, characterized in that: The mounting frame includes a forming roller mounting seat and a pressing roller mounting seat, the forming roller group is mounted on the forming roller mounting seat, the forming roller mounting seat is fixedly mounted on the sliding base, the pressing roller group is mounted on the pressing roller mounting seat, the pressing roller mounting seat is arranged on one side of the forming roller mounting seat and is fixedly mounted on the sliding base.

7. The jacket pipe production device according to claim 6, characterized in that: The forming roller group mounting seat includes a sliding support, a slider and an adjustment base, the forming roller group is installed on the slider, the slider is arranged on the sliding support and is slidably connected to the sliding support, the sliding support is fixedly arranged on the sliding base, the adjustment base is arranged on the sliding base, and the adjustment base includes a gear meshingly connected to the slider and a hand wheel connected to the gear.

8. The sheath pipe production device according to claim 1, characterized in that: A metal belt feeding device is arranged on the frame, and the metal belt feeding device comprises a feeding frame and a feeding wheel, and the feeding wheel is installed on the feeding frame.

9. The jacket pipe production device according to claim 4, characterized in that: At least one guide roller is provided on the pulling mechanism, and the guide roller is provided with a metal belt guide groove, and the metal belt guide groove is used to guide the metal belt.

10. The jacket pipe production device according to claim 5, characterized in that: The mounting frame is also provided with a lubricating oil device, and the lubricating oil device is used to spray lubricating liquid on the surface of the formed metal strip.

11. The jacket pipe production device according to any one of claims 1 to 9, characterized in that: The pressing roller group includes a mounting platform and a plurality of pressing rollers fixed on the mounting platform and arranged around a core shaft, the pressing roller includes a mounting base and a pressing mechanism arranged on the mounting base, the pressing mechanism includes a shaft, a locking nut, a roller and a compression spring, the shaft is connected to the mounting base, the roller is connected to the bottom of the shaft, a compression spring is sleeved on the shaft above the roller, the locking nut is arranged above the compression spring, the mounting base is fixed on the mounting platform, and the roller is used to cooperate with the formed metal strip for pressing.

12. The sheath pipe production device according to claim 11, characterized in that: The mounting base is provided with a front and rear adjustment locking plate and an up and down adjustment bolt, the shaft is connected to the front and rear adjustment locking plate, the up and down adjustment bolts are connected to the shaft and are arranged on both sides of the shaft, and the buckling mechanism also includes an angle adjustment gear, which is sleeved on the shaft and arranged between the locking nut and the compression spring.

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