A corrugated pipe production steel strip corrugated extrusion roller fixing frame

Abstract

The utility model provides a corrugated steel strip corrugated extrusion roller fixing frame for producing corrugated pipes, comprising two slideways arranged opposite to each other, one end of the two slideways being spanned by a connecting bridge; the extrusion roller is placed between the two slideways, and both ends of the rotating shaft of each extrusion roller are respectively connected to a bearing seat, and each bearing seat can move along the length direction of the slideway; a linkage bridge is provided between the two bearing seats of the extrusion roller close to the connecting bridge, and a stud is rotatably connected to the middle of the linkage bridge, and a screw sleeve is provided on the connecting bridge, and the stud and the screw sleeve are screwed. The utility model connects one of the extrusion rollers with the linkage bridge, and a stud is provided on the linkage bridge to cooperate with the screw sleeve on the connecting bridge, so that when the stud is rotated, an external force can be applied to the bearing seats at both ends of the extrusion roller at the same time, thereby quickly completing the height adjustment of the extrusion roller, so that the equipment can be put into use more quickly, and at the same time, the phenomenon of extrusion roller tilting during the adjustment process is avoided, so as to prevent damage to the equipment, and also make the force on both sides of the extrusion roller more uniform during the working process.

Description

Technical Field

[0001] The utility model belongs to the field of corrugated pipe production, in particular to a steel strip corrugated extrusion roller fixing frame for producing corrugated pipes. Background Art

[0002] In the production process of large-diameter corrugated pipes, the steel strip is bent and curled into a spiral shape, and then the edges of the steel strip are connected to form a tube. In order to process the "corrugated" protrusions on the tube wall, before the steel strip is curled, it is necessary to extrude a groove in the middle of the steel strip along the length direction of the steel strip. In the prior art, the processing of the groove is through the mutual extrusion of multiple groups of extrusion rollers, so that the middle of the steel strip gradually produces a groove. However, in the initial setting of the production line, in order to adjust the gap between each group of extrusion rollers, it is necessary to adjust the height of the bearing seat on both sides of each roller separately. When adjusting the bearing seat on one side, due to the connection effect of the roller shaft, it is inevitable to affect the bearing seat on the other side, so that the bearing seat needs to leave a gap with the surrounding guide parts to prevent the bearing seat from tilting when adjusting one side of the bearing seat alone, causing the various components to be stuck to each other, affecting the accuracy of each component. To adjust the bearing seats on both sides at the same time, it is necessary for two people to adjust the top screws on the two bearing seats respectively, which increases the labor cost. When producing steel strips of different specifications, the position of the roller set and the gap between each set of rollers need to be adjusted according to production needs. The existing technology is not conducive to quickly putting the production line into production. Utility Model Content

[0003] In view of this, the utility model aims to provide a corrugated tube production steel strip corrugated extrusion roller fixing frame to synchronously adjust the height of the bearing seats on both sides of the roller, so as to adjust the gap between the two rollers in the steel strip forming mechanism.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A corrugated steel strip corrugated extrusion roller fixing frame for producing corrugated pipes, comprising two slideways arranged opposite to each other, with a connecting bridge spanning one end of the two slideways and a base fixed to each other at the other end; two mutually cooperating extrusion rollers are placed between the two slideways, with both ends of the rotating shaft of each extrusion roller respectively connected to a bearing seat, and each bearing seat can move along the length direction of the slideway; a linkage bridge is provided between the two bearing seats of the extrusion roller close to the connecting bridge, a stud is rotatably connected to the middle of the linkage bridge, a screw sleeve is provided on the connecting bridge, and the stud is screwed to the screw sleeve; support rods are respectively extended downward from the two bearing seats of the other extrusion roller, and the bottom ends of the support rods can be tightly abutted against the base.

[0006] Furthermore, each slideway includes two guide plates arranged opposite to each other, and a guide rib extends inwardly from the middle of each guide plate. Guide grooves are respectively opened on both sides of each bearing seat, and the guide ribs are placed in the wire grooves.

[0007] Further, the linkage bridge is in a C shape and includes two avoidance parts and a linkage beam connecting the two avoidance parts. The extrusion roller is placed in the C-shaped space, and the stud is rotatably connected to the middle of the linkage beam.

[0008] Further, a long circular hole is formed in the connecting bridge, and the screw sleeve can move along the length direction of the long circular hole.

[0009] Further, the screw sleeve includes two oppositely arranged arc-shaped screw connection pieces, and a lower limit piece extends outward from the bottom end of each screw connection piece, and an upper limit piece extends outward from the middle part. There is a rotation space between the lower limit piece and the upper limit piece.

[0010] Further, the length of the upper limit piece and the lower limit piece is greater than the width of the long circular hole, and the width of the upper limit piece and the lower limit piece is less than the width of the long circular hole.

[0011] Further, connecting ears are respectively arranged on both sides of the upper limit piece, and the connecting ears of the two screw connection pieces can be connected by bolts.

[0012] Further, a limit protrusion extends upward from the upper surface of the lower limit piece, and when the connecting ears are connected to each other, the two side walls of the limit protrusion can closely adhere to the side walls of the long circular hole.

[0013] Further, a flange extends outward from the bottom end of the stud, a fixed sleeve is sleeved on the stud, an accommodation space is arranged in the fixed sleeve, the flange is placed in the accommodation space, and the fixed sleeve is fixedly connected to the linkage beam.

[0014] Further, a thread is formed at the bottom end of the support rod, a nut is screwed on the thread, a through hole is formed in the base, the support rod can be inserted into the through hole, and the nut can tightly abut against the upper surface of the base.

[0015] Further, two nuts are screwed on each support rod.

[0016] Compared with the prior art, the fixed frame for the corrugated pipe production steel belt waveform extrusion roller of the present utility model has the following advantages:

[0017] The present utility model connects one of the extrusion rollers with the linkage bridge, and a stud is arranged on the linkage bridge to cooperate with the screw sleeve on the connecting bridge, so that when the stud is rotated, an external force can be applied to the bearing seats at both ends of the extrusion roller, so that the two bearing seats move synchronously along the slideway, thereby quickly completing the height adjustment of the extrusion roller, enabling the equipment to be put into use faster, and at the same time avoiding phenomena such as the extrusion roller tilting during the adjustment process, preventing damage to the equipment, and also making the forces on both sides of the extrusion roller more uniform during the working process;

[0018] An oblong hole is opened on the connecting bridge and a screw sleeve moves along the oblong hole, so that the position of the screw sleeve can be adjusted according to the position of the stud, so as to determine the relative position of the stud and the linkage beam during production and processing, and prevent the stud from being offset;

[0019] The upper and lower limit plates are used to fix the height of the screw sleeve, and at the same time, the studs are used to apply external force to the extrusion roller, so that the steel strip is deformed through the extrusion roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of the molding device;

[0022] Figure 2 is a schematic diagram of the structure of the guide device;

[0023] Figure 3 is a schematic diagram of the support unit structure;

[0024] Figure 4 It is a schematic diagram of the overall structure of the limit unit;

[0025] Figure 5 Schematic diagram of the limiting wheel structure;

[0026] Figure 6 Schematic diagram of the guide sleeve structure

[0027] Figure 7 It is a schematic diagram of the overall structure of the extrusion unit;

[0028] Figure 8 It is a schematic diagram of the structure of the lower extrusion roller;

[0029] Fig. 9 This is a schematic diagram of the explosion of the upper extrusion roller structure;

[0030] Fig.10 This is a schematic diagram of the slide structure on one side;

[0031] Fig.11 It is a schematic diagram of the sliding sleeve structure.

[0032] Description of reference numerals:

[0033] 1- slideway; 11- base; 12- guide plate; 13- guide edge; 2- squeeze roller; 21- bearing seat; 22- guide groove; 23- linkage bridge; 231- avoidance part; 232- linkage beam; 24- stud; 241- flange; 25- fixing sleeve; 251- accommodation space; 26- support column; 3- connection bridge; 31- oblong hole; 4- screw sleeve; 41- screw connection piece; 42- upper limit piece; 43- lower limit piece; 44- rotation space; 45- connection ear; 46- limit protrusion; 5- support unit; 5 1-first support frame; 511-slot hole; 52-support roller; 53-pressure roller; 6-guide unit; 61-limiting wheel; 611-upper limit edge; 612-lower support edge; 6121-support surface; 6122-guide surface; 613-space for steel belt to pass through; 62-second support frame; 621-guide column; 622-sleeve; 6221-long notch; 623-guide platform; 624-guide groove; 6241-fixed edge; 625-guide sheet; 6251-fixed column; 7-molding space; 8-substrate. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] The utility model discloses a corrugated tube production steel strip corrugated extrusion roller fixing frame, which is applied to a steel strip guiding device used in a corrugated tube production forming mechanism, wherein the steel strip guiding device comprises a support unit 5 and a guide unit 6, and a forming space 7 is left between the support unit 5 and the guide unit 6; the support unit 5 comprises a support roller 52, a pressure roller 53 and a first support frame 51, wherein the support roller 52 is horizontally arranged, the steel strip can be placed above the support roller 52, and the length direction of the steel strip is perpendicular to the axial direction of the support roller 52, the pressure roller 53 is pressed on the steel strip, and the pressure roller 53 is pressed on the steel strip. 53 is parallel to the support roller 52, and the two ends of the rotating shafts of the support roller 52 and the pressure roller 53 pass through the sliders respectively, and threads are respectively provided on the outer ends of the rotating shafts. A slide groove is provided on the first support frame 51, and the slider is placed in the slide groove and can move along the slideway 1. A slot hole 511 is provided at the bottom of the slide groove, and the two ends of the rotating shaft of the support roller 52 pass through the slot hole 511 respectively, and the ends of the rotating shaft are screwed with nuts. The support roller 52 and the pressure roller 53 are fixed to the first support frame 51 by the cooperation of a plurality of nuts, thereby determining the height of the support roller 52 and the pressure roller 53;

[0039] The guide unit 6 includes a second support frame 62 and two oppositely arranged limiting wheels 61, each limiting wheel 61 is rotatably connected to the end of a guide piece 625, the second support frame 62 includes a guide column 621, a sleeve 622 is sleeved on the guide column 621, and the sleeve 622 can move along the direction of the guide column 621, a guide platform 623 is provided on the top of the sleeve 622, and a guide groove 62422 is opened on the guide platform 623, and the guide piece 625 is inserted into the guide groove 62422. In order to facilitate the fixing of the position of the limiting wheel 61, the upper surface of the guide piece 625 is turned to A positioning column is extended from the top, and a nut is screwed to the positioning column. Fixed edges 6241 are extended inward on both sides of the guide groove 62422 respectively, and the nut can be tightly against the fixed edge 6241. A long slot 6221 is opened on one side of the guide tube, and a screw hole is opened on the guide column 621. A bolt can pass through the long slot 6221 and be screwed to the screw hole, and the guide column 621 can be fixed to the guide tube. The height of the limiting wheel 61 is adjusted by the cooperation of the guide column 621 and the guide sleeve, and the distance between the two limiting wheels 61 is adjusted by the cooperation of the guide sheet 625 and the guide groove 62422. The steel belt is placed between the two limiting wheels 61. The edge of the limiting wheel 61 extends outward to form an upper limit edge 611 and a lower support edge 612, and a space 613 for the steel belt to pass is reserved between the upper limit edge 611 and the lower support edge 612. The lower support edge 612 includes a supporting surface 6121 and a guide surface 6122. The supporting surface 6121 is arranged opposite to the upper limit edge 611, and the guide surface 6122 is formed by the supporting surface 6121 extending obliquely downward, and the edge of the steel belt overlaps the supporting surface 6121.

[0040] A forming space 7 is reserved between the support roller 52 and the guide unit 6 .

[0041] Based on the above-mentioned guide device, the present application also relates to a steel strip forming mechanism, which includes the above-mentioned steel strip guiding device, and multiple groups of extrusion units are arranged between the support roller 52 and the guide unit 6, and each group of extrusion units includes two oppositely arranged extrusion rollers 532, and the middle part of one of the extrusion rollers 532 protrudes outwards and the middle part of the other extrusion roller 532 is concave, and along the direction from the support roller 52 to the guide unit 6, in each extrusion unit, the diameter of the protruding part of the extrusion roller 532 protruding outwards in the middle gradually increases, and the diameter of the concave part of the extrusion roller 532 concave in the middle gradually decreases. And each extrusion unit also includes two bases 11, each base 11 extends two guide plates 12 vertically upward, and the two guide plates 12 on the same base 11 are arranged oppositely, and the guide plate 12 extends a guide ridge 13 inward along the length direction of the guide plate 12, and a space is left between the two guide plates 12 to form a slideway 1. Two mutually cooperating squeezing rollers 2 connected to the fixing frame are placed between the two slideways 1, and a connecting bridge 3 is provided across one end of the two slideways 1 away from the base 11. The two ends of the connecting bridge 3 are respectively fixed to the ends of the guide plates 12 of the two slideways 1, and the two ends of the rotating shaft of each squeezing roller 2 are respectively connected to a bearing seat 21, the bearing seat 21 is placed in the slideway 1, and the two sides of the bearing seat 21 are respectively provided with guide grooves 22, and the guide edges 13 are placed in the guide grooves 22, and each bearing seat 21 can move along the length direction of the slideway 1; the two bearing seats 21 of the squeezing roller 2 placed below respectively extend support rods downward, and the bottom ends of the support rods can be against the base 11, thereby applying a supporting force to the squeezing roller 2 below, specifically, the bottom ends of the support rods are provided with threads, and two nuts are screwed on the threads, and the base is provided with a through hole, the support rod can be inserted into the through hole, and the nut can be tightly against the upper surface of the base, the effective supporting length of the support rod is adjusted by the nut, and the positions of the two nuts are fixed to each other through the design of the double nuts to prevent loosening and causing changes in the supporting force. Optionally, during the installation process, the bearing seat 21 can be placed in the slide 1 first, and the height of the two bearing seats 21 can be adjusted by nuts. After the two bearing seats 21 are at the same predetermined height, the lower extrusion roller 2 is placed between the two bearing seats 21 and passed through the rotating shaft to complete the installation of the lower extrusion roller 2.A linkage bridge 23 is provided between two bearing seats 21 of the upper extrusion roller 2. A stud 24 is rotatably connected to the middle of the linkage bridge 23. A screw sleeve 4 is provided on the connecting bridge 3. The stud 24 is screwed with the screw sleeve 4. Optionally, in this embodiment, the linkage bridge 23 includes two avoiding portions 231 and a linkage beam 232 connecting the two avoiding portions 231. The linkage beam 232 and the two avoiding portions 231 surround to form a U-shape. The extrusion roller 2 is placed in the U-shaped space. The stud 24 is rotatably connected to the middle of the linkage beam 232. Specifically, a fixed sleeve 25 is fixedly provided in the middle of the linkage beam 232. A stepped hole is provided in the fixed sleeve 25, and a receiving space 251 is formed by surrounding the surface of the connecting beam with the large-diameter hole section of the stepped hole. The bottom end of the stud 24 extends outwards with a flange 241. The flange 241 is placed in the receiving space 251. When an axial force is applied to the stud 24, the axial force can act on the two bearing seats 21 through the linkage beam 232 and drive the bearing seats 21 to move up or down synchronously. A screw sleeve 4 is provided on the connecting bridge 3. The screw sleeve 4 is screwed with the stud 24. Optionally, when installing the upper extrusion roller 2, the upper extrusion roller 2 is connected to the rotating shaft, the bearing seat 21 and the linkage bridge 23 as a whole, so as to facilitate the control of the accuracy of the upper extrusion roller 2. In this whole, the extrusion roller 2 is placed at the middle position between the two bearing seats 21. At the same time, the stud 24 is placed at the middle position of the linkage beam 232, and the stud 24 is placed directly above the extrusion roller 2. The bearing seats 21 on both sides of the extrusion roller 2 are placed in the slideway 1. The upper extrusion roller 2 can be temporarily placed on the lower extrusion roller 2. Then the connecting bridge 3 is installed on the guide plate 12, and the stud 24 is screwed with the screw sleeve 4 to adjust the upper extrusion roller 2 to a predetermined height.In order to facilitate installation and ensure that the position of the screw sleeve 4 on the connecting bridge 3 corresponds to the position of the stud 24, an oblong hole 31 is opened on the connecting bridge 3, and the screw sleeve 4 can move along the length direction of the oblong hole 31. Specifically, the screw sleeve 4 includes two relatively arranged arc-shaped screw connecting pieces 41, and the bottom end of each screw connecting piece 41 extends outwardly to form a lower limiting piece 43, and the middle part extends outwardly to form an upper limiting piece 42, and a rotation space 44 is left between the lower limiting piece 43 and the upper limiting piece 42. The lengths of the upper limiting piece 42 and the lower limiting piece 43 are greater than the width of the oblong hole 31, and the widths of the upper limiting piece 42 and the lower limiting piece 43 are less than the width of the oblong hole 31, so that the arc-shaped screw connecting piece 41 on a single side can pass through the oblong hole 31 , and when the height of the oblong hole 31 corresponds to the rotation space 44, the screw connection piece 41 is rotated so that the upper limit piece 42 and the lower limit piece 43 can be placed on the edge of the limit hole to prevent the screw connection piece 41 from falling. The upper limit piece 42 is provided with connecting ears 45 on both sides, and the connecting ears 45 of the two screw connection pieces 41 can be connected by bolts. The inner walls of the two screw connection pieces 41 are respectively provided with threads. When the two screw connection pieces 41 are combined, the threads on the two screw connection pieces 41 cooperate with each other to form a screw hole, so that the stud 24 is screwed with the screw hole. In the processing of the screw sleeve 4, the overall outer circle shape and the internal threaded hole of the screw sleeve 4 can be processed first, and then the screw sleeve 4 can be divided into two screw connection pieces 41 by wire cutting and other processing methods to ensure the thread accuracy. The upper surface of the lower limit piece 43 extends upward with a limiting protrusion 46, and when the connecting ears 45 are connected to each other, the two side walls of the limiting protrusion 46 can be closely attached to the side walls of the oblong hole 31.

[0042] During use, first complete the assembly of the fixing frame, and place the squeezing roller 2 in the fixing frame, pass the steel strip between the two squeezing rollers 2, connect it to the top of the stud 24 through a turntable or a handle, rotate the turntable or handle to drive the stud 24 to rotate, so that the squeezing roller 2 applies pressure downward to deform the steel strip. During this process, the screw sleeve 4 is supported by the squeezing roller 2, and the lower limit edge is against the connecting bridge 3. At the same time, the limit protrusion 46 enters the oblong hole 31 upward to prevent the screw sleeve 4 from rotating during the rotation of the stud 24. In order to facilitate the transmission of torque, the top of the stud is square. Those skilled in the art should know that in order to rotate the squeezing roller to drive the steel strip to move, the rotating shaft of the upper squeezing roller or the lower squeezing roller can be connected to the output shaft of the motor through parts such as a universal joint connecting rod. This is a prior art and will not be repeated here.

[0043] In order to facilitate position adjustment and fixation, oblong holes are respectively opened on the first support frame, the second support frame and the base, as well as the base plate for fixing the above-mentioned device, so as to fine-tune the position of each unit during installation and fixation.

[0044] During the installation of the production line, the first support frame is installed at one end of the base plate, and the support roller and the pressure roller are adjusted to a preset height; the second support frame is fixed to the other end of the base plate, and part of the steel is placed on the support roller and passed between the two limiting wheels, and the edges of both sides of the steel belt are placed on the support surface. Based on this part of the steel belt, the extrusion unit is positioned so that the lower extrusion roller is placed directly below the steel belt, and the upper extrusion roller is placed directly above the steel belt, and the convex and concave parts of the extrusion roller correspond to the position to be processed on the steel belt. More specifically, the operator can first place the base of the slideway on the base plate, install the lower extrusion roller between the two slideways, and adjust the positions of the two bases as needed, thereby changing the position of the lower extrusion roller. After determining the position of the lower extrusion roller, fix the bases on both sides, and install the extrusion roller, thereby completing the installation and commissioning of the extrusion unit.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated steel strip corrugated extrusion roller fixing frame for corrugated pipe production, characterized in that: It includes two relatively arranged slideways. A connecting bridge is spanned across one end of the two slideways, and a base is fixedly provided at the other end respectively; two mutually cooperating extrusion rollers are placed between the two slideways. Both ends of the rotating shaft of each extrusion roller are connected to a bearing seat respectively, and each bearing seat can move along the length direction of the slideway; a linkage bridge is provided between the two bearing seats of the extrusion roller close to the connecting bridge. A stud is rotatably connected to the middle of the linkage bridge. A screw sleeve is provided on the connecting bridge, and the stud is screwed with the screw sleeve; support rods respectively extend downward from the two bearing seats of the other extrusion roller, and the bottom ends of the support rods can tightly abut against the bases.

2. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 1, characterized in that: Each slideway includes two relatively arranged guide plates. Guide ribs extend inward from the middle of each guide plate respectively. Guide grooves are respectively formed on both sides of each bearing seat, and the guide ribs are placed in the guide grooves.

3. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 1, characterized in that: The linkage bridge is in a U shape and includes two avoidance parts and a linkage beam connecting the two avoidance parts. The extrusion roller is placed in the U-shaped space, and the stud is rotatably connected to the middle of the linkage beam.

4. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 1, characterized in that: A long circular hole is formed on the connecting bridge, and the screw sleeve can move along the length direction of the long circular hole.

5. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 4, characterized in that: The screw sleeve includes two relatively arranged arc-shaped screwing pieces. The bottom end of each screwing piece extends outward to form a lower limit piece, and the middle part extends outward to form an upper limit piece. A rotating space is left between the lower limit piece and the upper limit piece.

6. A corrugated steel strip corrugated extrusion roller fixing frame for corrugated pipe production according to claim 5, characterized in that: The lengths of the upper limit piece and the lower limit piece are greater than the width of the long circular hole, and the widths of the upper limit piece and the lower limit piece are less than the width of the long circular hole.

7. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 5, characterized in that: Connecting ears are respectively provided on both sides of the upper limit piece, and the connecting ears of the two screwing pieces can be connected by bolts.

8. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 5, characterized in that: A limit protrusion extends upward from the upper surface of the lower limit piece. When the connecting ears are connected to each other, the two side walls of the limit protrusion can closely adhere to the side walls of the long circular hole.

9. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 1, characterized in that: A flange extends outward from the bottom end of the stud. A fixed sleeve is sleeved on the stud. An accommodating space is provided in the fixed sleeve, and the flange is placed in the accommodating space. The fixed sleeve is fixedly connected to the linkage beam.

10. The fixing frame for corrugated steel strip corrugated extrusion rollers for corrugated pipe production according to claim 1, characterized in that: The bottom end of the support rod is provided with threads, and a nut is screwed on the threads. A through hole is formed on the base. The support rod can be inserted into the through hole, and the nut can tightly abut against the upper surface of the base.

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