Transmission device of pipe making machine

Abstract

The invention provides a transmission device of a pipe making machine, and relates to the technical field of mechanical equipment, the transmission device comprises an upper and lower forming roller transmission assembly and a side roller transmission assembly, the upper and lower forming roller transmission assembly comprises an upper roller mounting shaft and a lower roller mounting shaft, and the upper roller mounting shaft and the lower roller mounting shaft are used for connecting an upper forming roller and a lower forming roller; the upper roller mounting shaft can move up and down relative to the lower roller mounting shaft; the side roller transmission assembly comprises two groups of side roller mounting shafts; the two groups of side roller mounting shafts are used for connecting side forming rollers; the device further comprises a power assembly. The power assembly is connected with the transmission rod; the transmission rod is connected with one of the upper roller mounting shaft and the lower roller mounting shaft; or, the power assembly is connected with a gear transmission box, the gear transmission box is connected with two groups of transmission rods, and the two groups of transmission rods are respectively connected with the upper roller mounting shaft and the lower roller mounting shaft. The production line has the beneficial effects that a user can reasonably match according to actual requirements in the using process, so that the cost of the production line is saved, and stable operation of the production line is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical equipment, in particular to a transmission device of a pipe making machine. Background Art

[0002] The pipe making machine is a mechanical equipment used to produce pipes. The working process of the pipe making machine includes uncoiling, forming, welding, grinding, sizing, straightening, sizing, cutting and other processes. The rolled steel strip is pulled into the folding mechanism of the pipe making machine for folding, so that the long steel strip is folded along both sides to the middle into a tube shape. The steel strip is folded and formed by the folding rollers set in the folding mechanism. The folding mechanism will be equipped with multiple sets of folding rollers. After the steel strip passes through multiple sets of folding rollers, it will be gradually bent into a tube shape. In the process of folding the steel strip, these folding rollers need to use a transmission device to make them rotate. The transmission device of the pipe making machine usually includes components such as a motor, a reducer, and a transmission shaft. These components work together to transmit power from the motor to the forming part of the pipe making machine to achieve continuous production of pipes. At present, the transmission devices of pipe making machines on the market mostly use one (or two) high-power main motors in series with multiple worm gears (or bevel gears) to drive multiple groups of driving rollers to rotate in order to obtain large torque. This transmission method has high energy consumption, large wear of worm gears (gears), and low transmission efficiency.

[0003] The technical content disclosed in the Chinese patent document (publication number: CN116274467A, patent name: A mixed tube making machine for round tubes and square tubes) is as follows: the material rough forming structure includes a round tube rough forming frame, a lower forming roller is provided on the round tube rough forming frame, and the lower forming roller is driven by a lower driving assembly, an upper forming roller is correspondingly provided at the upper end of the lower forming roller, and the upper forming roller is driven by the upper driving assembly, and a lifting screw for adjusting the lifting of the upper driving assembly and the upper forming roller is provided on the round tube rough forming frame, and one end of the lower driving assembly and the upper driving assembly is slidably arranged on the lifting rod on one side of the round tube rough forming frame; the tube body rotating mechanism includes a rotating frame, a rotating adjustment hand wheel is provided on the rotating frame, and a transverse loading seat for loading materials is rotatably provided on the upper end of the tube body rotating mechanism; a square tube rough forming frame is provided between the tube body rotating mechanism and the round tube rough forming frame, a square tube pressing roller is provided on the square tube rough forming frame, and a rough forming pressing plate is provided at the lower end of the square tube pressing roller, and the rough forming pressing plate is driven by a screw motor arranged on the square tube rough forming frame for lifting and lowering adjustment.

[0004] It can be seen from the above implementation scheme that the pipe making machine uses different motors to drive the upper forming roller and the lower forming roller to rotate to fold the steel strip. If the output synchronization of the two motors cannot be guaranteed during the production process, the pulling force of the upper forming roller and the lower forming roller on the steel strip will be staggered, which will easily form wrinkles on the steel strip, resulting in poor surface quality of the finished product, and may also cause different thicknesses of different parts of the manufactured pipe fittings, ultimately affecting the use effect of the product. Summary of the invention

[0005] The invention overcomes the shortcomings of the prior art. The invention allows each set of upper and lower forming roller transmission assemblies to have an independent power assembly, including a third motor and a reduction box, and uses a smaller motor with a large speed ratio combined reduction system to obtain a large output torque. This design can effectively avoid the high energy consumption and high wear problems caused by centralized drive in traditional transmission methods, improve transmission efficiency, and ensure stable operation of the pipe making machine. The power assembly, transmission rod, gear transmission box, and upper and lower forming roller transmission assemblies are set, so that users can reasonably match them according to actual needs during use, thereby saving the cost of the production line and ensuring the stable operation of the production line.

[0006] In order to solve the above technical problems, the invention is implemented through the following technical solutions: A transmission device of a pipe making machine comprises an upper and lower forming roller transmission assembly and a side roller transmission assembly, wherein the upper and lower forming roller transmission assembly comprises an upper roller mounting shaft and a lower roller mounting shaft, wherein the upper roller mounting shaft and the lower roller mounting shaft are used to connect the upper and lower forming rollers; the upper roller mounting shaft can move up and down relative to the lower roller mounting shaft; The side roller transmission assembly includes two sets of side roller mounting shafts, and the two sets of side roller mounting shafts are used to connect the side forming rollers; The upper and lower forming rollers and the side forming rollers roll the steel strip as it moves, so that the steel strip is finally rolled into a tube shape; Also includes power components; The power assembly is connected to a transmission rod, and the transmission rod is connected to one of the upper roller mounting shaft or the lower roller mounting shaft; Or, the power assembly is connected to a gear transmission box, the gear transmission box is connected to two sets of transmission rods, and the two sets of transmission rods are respectively connected to the upper roller mounting shaft and the lower roller mounting shaft.

[0007] Furthermore, the upper and lower forming roller transmission components include an adjusting seat, a lower roller seat is arranged near the lower end of the adjusting seat, detachable lower seat side plates are arranged on both sides of the lower roller seat, a lower bearing is arranged in the lower roller seat, the adjusting seat is slidably connected to the upper roller seat, the upper roller seat includes a movable seat body, detachable upper seat side plates are arranged on both sides of the movable seat body, and an upper bearing is arranged in the upper roller seat; Both ends of the upper roller mounting shaft are connected to the upper roller seat; Both ends of the lower roller mounting shaft are connected to the lower roller seat; Limiting seats are also arranged on both sides of the upper end of the adjusting seat, and limiting rod bodies are embedded on the limiting seats.

[0008] Furthermore, a second screw is rotatably connected to the movable seat, the second screw is connected to a worm gear conversion box, and the worm gear conversion box is connected to a second motor; The worm gear conversion box is connected to both ends of the connecting rod component, the two worm gear conversion boxes are connected to the two second screw rods, the two second screw rods are respectively threadedly connected to the two adjustment seats, and the two second screw rods rotate to pull the two upper roller seats to move up and down.

[0009] Furthermore, the connecting rod component includes a sleeve, which is provided with a polygonal inner sleeve hole, and a first connecting rod and a second connecting rod are movably connected at both ends of the sleeve. The first connecting rod is provided with a first polygonal connecting joint at one end facing the sleeve, and the second connecting rod is provided with a second polygonal connecting joint at one end facing the sleeve.

[0010] Furthermore, the power assembly includes a third motor, the third motor is connected to a reduction gearbox, and the reduction gearbox is connected to a coupling.

[0011] Furthermore, the transmission rod comprises a transmission main rod, and first U-shaped connecting blocks are arranged at both ends of the transmission main rod, the first U-shaped connecting block is connected to the transfer block, and the transfer block is connected to the second U-shaped connecting block; The transfer block comprises a block body, and connecting cylinders are arranged on the four faces around the block body, wherein two symmetrical connecting cylinders are rotatably connected to the first U-shaped connecting block, and the other two connecting cylinders are rotatably connected to the second U-shaped connecting block; The second U-shaped connecting block can rotate relative to the first U-shaped connecting block in two mutually perpendicular directions.

[0012] Furthermore, the second U-shaped connecting block is connected to the transmission connecting block, a key block is arranged on the second U-shaped connecting block, a key slot is arranged on the transmission connecting block, and the key block is engaged with the key slot.

[0013] Furthermore, the gear transmission box includes a transmission housing, a transmission main shaft and a transmission counter shaft are arranged inside the transmission housing, the transmission main shaft is connected to the driving gear, the transmission counter shaft is connected to the driven gear, and the driving gear is meshedly connected to the driven gear; Both ends of the transmission main shaft and the transmission secondary shaft are connected to the transmission bearings, and the transmission bearings are connected to the transmission end cover; One end of the transmission main shaft is connected to the coupling, and the other end of the transmission main shaft is connected to the transmission rod; one end of the transmission secondary shaft is connected to the transmission rod.

[0014] Furthermore, the side roller transmission assembly includes a side roller base, the side roller base includes a base plate, a side reinforcing plate is arranged on the base plate, the side reinforcing plate is connected to the upper cover plate, and a slide groove is formed between the side reinforcing plate and the upper cover plate; The slide groove is slidably connected with two sets of side roller sliders, and the side roller sliders are provided with guardrails; The side roller mounting shaft is rotatably connected to the side roller slider and the guardrail.

[0015] Furthermore, one side of the side roller base is connected to a side roller driving unit, which includes a first motor connected to a first screw rod, one end of the first screw rod is rotatably connected to a driving block, and the driving block is connected to a side roller slider.

[0016] Compared with the prior art, the invention has the following beneficial effects: Each set of upper and lower forming roller transmission components has an independent power component, including a third motor and a reduction box. The motor is selected to be a model with low power but can meet basic operating requirements, and the reduction box adopts a large speed ratio combined reduction system. After installation, debugging is carried out to ensure that each drive roller can rotate smoothly under independent drive and the output torque meets the requirements of pipe making. During the operation of the pipe making machine, the operating status of the transmission device is continuously monitored to ensure that it can provide power for the pipe making process efficiently and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the invention and are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation of the invention. In the accompanying drawings: Figure 1 is a general schematic diagram of a transmission device according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a side roller transmission assembly according to an embodiment of the present invention; Figure 3 is an exploded schematic diagram of a side roller transmission assembly according to an embodiment of the present invention; Figure 4 It is a schematic structural diagram of a power assembly, a transmission rod, and an upper and lower forming roller transmission assembly according to an embodiment of the present invention; Figure 5 It is an exploded schematic diagram of a power assembly, a gear transmission box, a transmission rod, and an upper and lower forming roller transmission assembly of an embodiment of the present invention; Figure 6 is an exploded view of the upper and lower forming roller transmission components of an embodiment of the present invention; Figure 7 is an exploded schematic diagram of a connecting rod component according to an embodiment of the present invention; Figure 8 is an exploded schematic diagram of a gear transmission box according to an embodiment of the present invention; Fig. 9 is a perspective view of a gear transmission box according to an embodiment of the present invention; Fig.10 is a first exploded schematic diagram of a transmission rod according to an embodiment of the present invention; Fig.11 2 is a second exploded schematic diagram of the transmission rod according to the embodiment of the present invention.

[0018] In the figure: 1. Side roller transmission assembly; 101. Side roller base; 1011. Base plate; 1012. Side reinforcement plate; 1013. Upper cover plate; 1014. Slide; 102. Side roller drive unit; 1021. First motor; 1022. First screw; 1023. Drive block; 103. Side roller slider; 104. Side roller mounting shaft; 105. Guardrail; 2. Upper and lower forming roller transmission assembly; 201. Lower roller mounting shaft; 202, adjustment seat; 2021, limit seat; 2022, lower roller seat; 20221, lower bearing; 20222, lower seat side plate; 2023, upper roller seat; 20231, movable seat body; 20232, second screw rod; 20233, upper seat side plate; 20234, upper bearing; 203, limit rod body; 204, second motor; 205, connecting rod component; 2051, first connecting rod ; 20511, first polygonal joint; 2052, second connecting rod; 20521, second polygonal joint; 5053, sleeve; 50531, polygonal inner sleeve hole; 206, worm gear conversion box; 207, upper roller mounting shaft; 3, power assembly; 301, third motor; 302, reduction box; 303, coupling; 4, transmission rod; 401, transmission main rod; 4011, first U-shaped connecting block; 402, transfer block; 4021, cube block; 4022, connecting cylinder; 403, second U-shaped connecting block; 4031, key block; 404, transmission connecting block; 4041, keyway; 5, gear transmission box; 502, transmission housing; 503, transmission end cover; 5031, transmission bearing; 504, transmission main shaft; 505, transmission secondary shaft; 506, driving gear; 507, passive gear. DETAILED DESCRIPTION

[0019] The preferred embodiments of the invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the invention, and are not used to limit the invention.

[0020] like Figures 1 to 11As shown, a transmission device of a pipe making machine includes an upper and lower forming roller transmission assembly 2 and a side roller transmission assembly 1. The upper and lower forming roller transmission assembly 2 includes an upper roller mounting shaft 207 and a lower roller mounting shaft 201, and the upper roller mounting shaft 207 and the lower roller mounting shaft 201 are used to connect the upper and lower forming rollers; the upper roller mounting shaft 207 can move up and down relative to the lower roller mounting shaft 201; the side roller transmission assembly 1 includes two sets of side roller mounting shafts 104, and the two sets of side roller mounting shafts 104 are both used to connect the side forming rollers; the distance between the two sets of side roller mounting shafts 104 is adjustable, so that the distance between the two upper and lower forming rollers and the side forming rollers can be adjusted according to the size of the actual pipe to be rolled and the shape and size of the upper and lower forming rollers and the side forming rollers, so that the forming size is more accurate. The upper and lower forming rollers and the side forming rollers roll the steel strip during the movement of the steel strip, so that the steel strip is finally rolled into a tube.

[0021] It also includes a power assembly 3; in the first embodiment, the power assembly 3 is connected to the transmission rod 4, and the transmission rod 4 is connected to one of the upper roller mounting shaft 207 or the lower roller mounting shaft 201; in the second embodiment, the power assembly 3 is connected to the gear transmission box 5, and the gear transmission box 5 is connected to two groups of transmission rods 4, and the two groups of transmission rods 4 are respectively connected to the upper roller mounting shaft 207 and the lower roller mounting shaft 201.

[0022] The first embodiment is aimed at the beginning of the bending of a relatively thin steel strip or a medium-thick steel strip. Since a small force is applied to the steel strip, the steel strip can be formed according to the setting. At this time, only one of the upper roller mounting shaft 207 and the lower roller mounting shaft 201 of the upper and lower forming roller transmission assemblies 2 needs to be rotated to drive the steel strip to move; the movement of the steel strip will drive the other to rotate, thereby forming upper and lower pressures on the steel strip, so that the steel strip is rolled and formed during the movement.

[0023] The second embodiment is aimed at steel strips with thicker thickness or where large angles of bends are required during the forming process. In order to achieve a better forming effect, a relatively uniform and larger force needs to be applied to the steel strip at this time. A gear transmission box 5 can be added between the power component 3 and the transmission rod 4. The gear transmission box 5 can simultaneously drive the two transmission rods 4 to rotate, so that the upper roller mounting shaft 207 and the lower roller mounting shaft 201 of the upper and lower forming roller transmission components 2 rotate at the same time, so that the upper and lower forming rollers connected to the upper roller mounting shaft 207 and the lower roller mounting shaft 201 can both apply tension or pressure to the steel strip to form the steel strip, and can also ensure the synchronization of the two, thereby ensuring the quality of the product. Therefore, users can make reasonable combinations according to actual needs during use, thereby saving the cost of the production line and ensuring the stable operation of the production line.

[0024] The upper and lower forming roller transmission assembly 2 includes an adjusting seat 202, a lower roller seat 2022 is arranged near the lower end of the adjusting seat 202, a lower bearing 20221 is arranged in the lower roller seat 2022, and detachable lower seat side plates 20222 are arranged on both sides of the lower roller seat 2022. Both ends of the lower roller mounting shaft 201 are connected to the lower roller seat 2022. When the upper and lower forming rollers need to be replaced, the lower seat side plates 20222 are removed, and the lower roller seat 2022 can be removed from the adjusting seat 202, so that the upper and lower forming rollers can be removed for replacement.

[0025] The adjusting seat 202 is slidably connected to an upper roller seat 2023, and the upper roller seat 2023 includes a movable seat body 20231, and an upper bearing 20234 is arranged in the upper roller seat 2023; removable upper seat side plates 20233 are arranged on both sides of the movable seat body 20231, and both ends of the upper roller mounting shaft 207 are connected to the upper roller seat 2023; when the upper and lower forming rollers need to be replaced, the upper seat side plates 20233 are removed, and the upper roller seat 2023 can be removed from the adjusting seat 202, so that the upper and lower forming rollers can be removed for replacement.

[0026] A second screw 20232 is rotatably connected to the movable seat body 20231, and the second screw 20232 is connected to a worm gear conversion box 206, and the worm gear conversion box 206 is connected to a second motor 204; the worm gear conversion box 206 is connected to both ends of the connecting rod component 205, and the two worm gear conversion boxes 206 are connected to two second screws 20232, and the two second screws 20232 are respectively threadedly connected to the two adjustment seats 202, and the two second screws 20232 rotate to pull the two upper roller seats 2023 to move up and down.

[0027] The connecting rod component 205 includes a sleeve 2053, which is provided with a polygonal inner sleeve hole 50531. The first connecting rod 2051 and the second connecting rod 2052 are movably connected at both ends of the sleeve 2053. The first connecting rod 2051 is provided with a first polygonal docking joint 20511 at one end facing the sleeve 2053, and the second connecting rod 2052 is provided with a second polygonal docking joint 20521 at one end facing the sleeve 2053. When it is necessary to adjust the height of the upper roller seat 2023, the first connecting rod 2051 and the second connecting rod 2052 are sleeved on both ends of the sleeve 2053. When the second motor 204 drives the second screw 20232 on one side to rise and fall, the two second screws 20232 can be lifted and lowered at the same time through the connecting rod component 205, so that both ends of the upper roller mounting shaft 207 can be lifted and lowered at the same time, so that the upper roller mounting shaft 207 can be lifted and lowered stably.

[0028] Limiting seats 2021 are also provided on both sides of the upper end of the adjusting seat 202, and the limiting rod body 203 is embedded in the limiting seat 2021. The distance between the upper ends of the two adjusting seats 202 can be adjusted so that the distance between the upper and lower ends of the two limiting seats 2021 is inconsistent, thereby generating a pulling force on the upper roller mounting shaft 201 and the lower roller mounting shaft 207 installed therein.

[0029] The power assembly 3 includes a third motor 301 . The third motor 301 is connected to a reduction box 302 . The reduction box 302 is connected to a coupling 303 .

[0030] The transmission rod 4 includes a transmission main rod 401, and first U-shaped connecting blocks 4011 are arranged at both ends of the transmission main rod 401, the first U-shaped connecting block 4011 is connected to the transfer block 402, and the transfer block 402 is connected to the second U-shaped connecting block 403; the transfer block 402 includes a square body 4021, and connecting cylinders 4022 are arranged on the four faces around the square body 4021, among which two symmetrical connecting cylinders 4022 are rotatably connected to the first U-shaped connecting block 4011, and the other two connecting cylinders 4022 are rotatably connected to the second U-shaped connecting block 403; the second U-shaped connecting block 403 can rotate in two mutually perpendicular directions relative to the first U-shaped connecting block 4011. The second U-shaped connecting block 403 is connected to the transmission connecting block 404. A key block 4031 is provided on the second U-shaped connecting block 403. A key slot 4041 is provided on the transmission connecting block 404. The key block 4031 is engaged with the key slot 4041. Therefore, the angle between the two transmission rods 4 changes within a certain range and will not affect the transmission of the two transmission rods 4. Therefore, after the upper roller seat 2023 adjusts the height, the transmission power of the transmission rod 4 will not be affected.

[0031] The gear transmission box 5 includes a transmission housing 502, and a transmission main shaft 504 and a transmission secondary shaft 505 are arranged inside the transmission housing 502. The transmission main shaft 504 is connected to the driving gear 506, and the transmission secondary shaft 505 is connected to the passive gear 507. The driving gear 506 is meshed with the passive gear 507; both ends of the transmission main shaft 504 and the transmission secondary shaft 505 are connected to the transmission bearing 5031, and the transmission bearing 5031 is connected to the transmission end cover 503; one end of the transmission main shaft 504 is connected to the coupling 303, and the other end of the transmission main shaft 504 is connected to the transmission rod 4; one end of the transmission secondary shaft 505 is connected to the transmission rod 4, so that the power output of the power component 3 can be transmitted to the two transmission rods 4 through the gear transmission box 5, so that the lower roller mounting shaft 201 and the upper roller mounting shaft 207 can both achieve self-rotation.

[0032] The side roller transmission assembly 1 includes a side roller base 101, and the side roller base 101 includes a base plate 1011. A side reinforcing plate 1012 is arranged on the base plate 1011, and an upper cover plate 1013 is connected to the side reinforcing plate 1012. A slide groove 1014 is formed between the side reinforcing plate 1012 and the upper cover plate 1013; two sets of side roller sliders 103 are slidably connected to the slide groove 1014, and a guardrail 105 is arranged on the side roller slider 103; the side roller mounting shaft 104 is rotatably connected to the side roller slider 103 and the guardrail 105, and the guardrail 105 prevents people from entering the equipment during operation. Or other objects touch the rotating side forming roller, one side of the side roller base 101 is connected to the side roller driving unit 102, the side roller driving unit 102 includes a first motor 1021, the first motor 1021 is connected to the first screw 1022, one end of the first screw 1022 is rotatably connected to the driving block 1023, the driving block 1023 is connected to the side roller slider 103, the two first motors 1021 rotate, drive the two first screws 1022 to move on the side roller base 101, thereby pushing the two groups of side roller sliders 103 to move, thereby adjusting the distance between the two side forming rollers.

[0033] A power assembly, a transmission rod, a gear transmission box and an upper and lower forming roller transmission assembly are provided. For relatively thin iron sheets or the beginning of the bending of medium-thick iron sheets, a small force can be applied to the iron sheets to make the iron sheets be formed according to the settings. At this time, only one of the upper roller mounting shaft and the lower roller mounting shaft of the upper and lower forming roller transmission assemblies needs to be rotated to drive the iron sheets to move. For thicker iron sheets or bending sections that require a large angle during the forming process, in order to achieve a better forming effect, a more uniform and larger force needs to be applied to the iron sheets. A gear transmission box can be added between the power assembly and the transmission rod. The gear transmission box can drive the two transmission rods to rotate at the same time, so that the upper roller mounting shaft and the lower roller mounting shaft of the upper and lower forming roller transmission assemblies rotate at the same time, so that the upper and lower forming rollers connected to the upper roller mounting shaft and the lower roller mounting shaft can both apply tension or pressure to the iron sheets to form the iron sheets, and can also ensure the synchronization of the two, thereby ensuring the quality of the product. Therefore, users can make reasonable combinations according to actual needs during use, thereby saving the cost of the production line and ensuring the stable operation of the production line.

[0034] Finally, it should be noted that the above are only preferred embodiments of the invention and are not intended to limit the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the protection scope of the invention.

Claims

1. A transmission device for a pipe making machine, characterized in that: The invention comprises an upper and lower forming roller transmission assembly (2) and a side roller transmission assembly (1), wherein the upper and lower forming roller transmission assembly (2) comprises an upper roller mounting shaft (207) and a lower roller mounting shaft (201), and the upper roller mounting shaft (207) and the lower roller mounting shaft (201) are used to connect the upper and lower forming rollers; the upper roller mounting shaft (207) can move up and down relative to the lower roller mounting shaft (201); The side roller transmission assembly (1) comprises two sets of side roller mounting shafts (104), and the two sets of side roller mounting shafts (104) are both used to connect to the side forming rollers; The upper and lower forming rollers and the side forming rollers bend and deform the steel strip during the movement, so that the steel strip is finally bent into a tube shape; Also includes a power assembly (3); The power assembly (3) is connected to a transmission rod (4), and the transmission rod (4) is connected to one of an upper roller mounting shaft (207) or a lower roller mounting shaft (201); Alternatively, the power assembly (3) is connected to a gear transmission box (5), the gear transmission box (5) is connected to two sets of transmission rods (4), and the two sets of transmission rods (4) are respectively connected to the upper roller mounting shaft (207) and the lower roller mounting shaft (201).

2. The transmission device of the pipe making machine according to claim 1, characterized in that: The upper and lower forming roller transmission assembly (2) comprises an adjustment seat (202), a lower roller seat (2022) is arranged near the lower end of the adjustment seat (202), detachable lower seat side plates (20222) are arranged on both sides of the lower roller seat (2022), a lower bearing (20221) is arranged in the lower roller seat (2022), the adjustment seat (202) is slidably connected to an upper roller seat (2023), the upper roller seat (2023) comprises a movable seat body (20231), detachable upper seat side plates (20233) are arranged on both sides of the movable seat body (20231), and an upper bearing (20234) is arranged in the upper roller seat (2023); Both ends of the upper roller mounting shaft (207) are connected to the upper roller seat (2023); Both ends of the lower roller mounting shaft (201) are connected to the lower roller seat (2022); Limiting seats (221) are also provided on both sides of the upper end of the adjustment seat (202), and the limiting rod body (201) is embedded in the limiting seat (221).

3. The transmission device of the pipe making machine according to claim 2, characterized in that: A second screw (20232) is rotatably connected to the movable seat (20231), the second screw (20232) is connected to a worm gear conversion box (206), and the worm gear conversion box (206) is connected to a second motor (204); The worm gear conversion box (206) is connected to both ends of the connecting rod component (205), the two worm gear conversion boxes (206) are connected to the two second screw rods (20232), the two second screw rods (20232) are respectively threadedly connected to the two adjustment seats (202), and the two second screw rods (20232) rotate to pull the two upper roller seats (2023) to move up and down.

4. The transmission device of the pipe making machine according to claim 3, characterized in that: The connecting rod component (205) comprises a sleeve (2053), the sleeve (2053) is provided with a polygonal inner sleeve hole (50531), the first connecting rod (2051) and the second connecting rod (2052) are movably inserted at both ends of the sleeve (2053), the first connecting rod (2051) is provided with a first polygonal butt joint (20511) at one end facing the sleeve (2053), and the second connecting rod (2052) is provided with a second polygonal butt joint (20521) at one end facing the sleeve (2053).

5. The transmission device of a pipe making machine according to any one of claims 1 to 4, characterized in that: The power assembly (3) comprises a third motor (301), the third motor (301) is connected to a reduction gearbox (302), and the reduction gearbox (302) is connected to a coupling (303).

6. The transmission device of the pipe making machine according to claim 5, characterized in that: The transmission rod (4) comprises a transmission main rod (401), and first U-shaped connection blocks (4011) are arranged at both ends of the transmission main rod (401), the first U-shaped connection block (4011) is connected to the transfer block (402), and the transfer block (402) is connected to the second U-shaped connection block (403); The transfer block (402) comprises a block body (4021), and connecting cylinders (4022) are arranged on four faces around the block body (4021), wherein two symmetrical connecting cylinders (4022) are rotatably connected to the first U-shaped connecting block (4011), and the other two connecting cylinders (4022) are rotatably connected to the second U-shaped connecting block (403); The second U-shaped connecting block (403) can rotate in two mutually perpendicular directions relative to the first U-shaped connecting block (4011).

7. The transmission device of the pipe making machine according to claim 6, characterized in that: The second U-shaped connection block (403) is connected to the transmission connection block (404); a key block (4031) is provided on the second U-shaped connection block (403); a key slot (4041) is provided on the transmission connection block (404); and the key block (4031) is engaged with the key slot (4041).

8. The transmission device of the pipe making machine according to claim 7, characterized in that: The gear transmission box (5) comprises a transmission housing (502), a transmission main shaft (504) and a transmission secondary shaft (505) are arranged inside the transmission housing (502), the transmission main shaft (504) is connected to the driving gear (506), the transmission secondary shaft (505) is connected to the driven gear (507), and the driving gear (506) is meshingly connected to the driven gear (507); Both ends of the transmission main shaft (504) and the transmission secondary shaft (505) are connected to the transmission bearing (5031), and the transmission bearing (5031) is connected to the transmission end cover (503); One end of the transmission main shaft (504) is connected to the coupling (303), and the other end of the transmission main shaft (504) is connected to the transmission rod (4); one end of the transmission secondary shaft (505) is connected to the transmission rod (4).

9. The transmission device of a pipe making machine according to any one of claims 1 to 4 and 6 to 8, characterized in that: The side roller transmission assembly (1) comprises a side roller base (101), the side roller base (101) comprises a base plate (1011), a side reinforcing plate (1012) is arranged on the base plate (1011), an upper cover plate (1013) is connected to the side reinforcing plate (1012), and a slide groove (1014) is formed between the side reinforcing plate (1012) and the upper cover plate (1013); The slide groove (1014) is slidably connected to two sets of side roller sliders (103), and the side roller sliders (103) are provided with guardrails (105); The side roller mounting shaft (104) is rotatably connected to the side roller slider (103) and the guardrail (105).

10. The transmission device of the pipe making machine according to claim 9, characterized in that: One side of the side roller base (101) is connected to a side roller driving unit (102); the side roller driving unit (102) comprises a first motor (1021); the first motor (1021) is connected to a first screw rod (1022); one end of the first screw rod (1022) is rotatably connected to a driving block (1023); and the driving block (1023) is connected to a side roller slider (103).

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