A steel belt guiding device for a corrugated pipe production forming mechanism

Abstract

The utility model provides a steel belt guiding device for a corrugated tube production and forming mechanism, comprising a support roller, on which the steel belt can be overlapped; a guide unit, which comprises two relatively arranged limiting wheels, the steel belt is placed between the two limiting wheels, each limiting wheel edge extends outwardly to form an upper limit edge and a lower support edge, and a space for the steel belt to pass is left between the upper limit edge and the lower support edge; a forming space is left between the support roller and the guide unit. The utility model adopts the support roller and the two limiting wheels to cooperate, and supports the steel belt through the support roller and the lower support edge, so that the steel belt is in a horizontal state, and at the same time, the operator can adjust the position of the extrusion roller according to the steel belt mounted between the two, so that the forming part of the extrusion roller corresponds to the pre-processing position of the steel belt, thereby improving the adjustment speed of the production line.

Description

Technical Field

[0001] The utility model belongs to the field of corrugated pipe production, in particular to a steel belt guiding device used for a corrugated pipe production forming mechanism. 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, it is necessary to extrude a groove in the middle of the steel strip along the length direction of the steel strip before curling 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 groove is gradually generated in the middle of the steel strip. This is for each group of extrusion rollers to be on the same straight line to prevent the force center of the steel strip from changing during movement due to the deviation of the extrusion rollers, causing the steel strip to shift. Now in the process of fixing the extrusion rollers, the positions of multiple groups of extrusion rollers need to be repeatedly debugged. After many attempts, continuous production can be carried out. When changing the specifications of the corrugated pipe, different steel strips need to be replaced and readjusted at the same time, so the production line cannot be put into use quickly, and it also increases labor costs. Utility Model Content

[0003] In view of this, the utility model aims to provide a steel strip guiding device for a corrugated tube production forming mechanism, so as to facilitate operators to position each extrusion roller in the forming mechanism.

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

[0005] A steel belt guiding device for a corrugated pipe production forming mechanism, comprising:

[0006] A support roller, on which the steel belt can be overlapped;

[0007] The guide unit comprises two limiting wheels arranged opposite to each other, the steel belt is placed between the two limiting wheels, the edge of each limiting wheel extends outwardly to form an upper limit edge and a lower support edge, and a space for the steel belt to pass is left between the upper limit edge and the lower support edge;

[0008] A forming space is reserved between the supporting roller and the guide unit.

[0009] Furthermore, a pressure roller is provided above the support roller, and the pressure roller presses on the steel belt.

[0010] Furthermore, the lower supporting edge includes a supporting surface and a guiding surface. The supporting surface is arranged opposite to the upper positioning edge. The guiding surface is formed by the supporting surface extending obliquely downward. The edge of the steel belt overlaps the supporting surface.

[0011] Furthermore, the supporting roller and the two limiting wheels can move in a vertical direction.

[0012] Furthermore, a first support frame is provided at both ends of the support roller, a slot is opened on the first support frame, both ends of the rotating shaft of the support roller pass through the slot respectively, and the end of the rotating shaft is screwed with a nut, and the support roller is fixed to the first support frame through the nut.

[0013] Furthermore, the guide unit also includes a second support frame, the second support frame includes a guide column, a sleeve is sleeved on the guide column, and the sleeve can move along the direction of the guide column, a guide platform is provided on the top of the sleeve, a guide groove is opened on the guide platform, the limiting wheel is rotatably connected to the end of a guide piece, and the guide piece is inserted into the guide groove.

[0014] Furthermore, a positioning column is extended upward from the upper surface of the guide piece, a nut is screwed to the positioning column, and fixing edges are respectively extended inward on both sides of the guide groove, and the nut can be tightly pressed against the fixing edges.

[0015] Furthermore, a long slot is formed on one side of the sleeve, and a screw hole is formed on the guide column. A bolt can pass through the long slot and be screwed into the screw hole, and the guide column can be fixed to the sleeve.

[0016] 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 supporting roller and the guiding unit, each group of extrusion units includes two extrusion rollers arranged opposite to each other, and the middle part of one of the extrusion rollers protrudes outwards and the middle part of the other extrusion roller is concave, and along the direction from the supporting roller to the guiding unit, in each extrusion unit, the diameter of the protruding part of the extrusion roller with the middle part protruding outwards gradually increases, and the diameter of the concave part of the extrusion roller with the middle part concave gradually decreases.

[0017] Compared with the prior art, the steel belt guiding device for the corrugated pipe production forming mechanism described in the utility model has the following advantages:

[0018] The utility model adopts the cooperation of the support roller and two limit wheels, supports the steel belt through the support roller and the lower support edge, so that the steel belt is in a horizontal state, and at the same time enables the operator to adjust the position of the squeezing roller according to the steel belt erected between the two, so that the forming part of the squeezing roller corresponds to the pre-processing position of the steel belt, thereby improving the adjustment speed of the production line;

[0019] A guide surface is set on the lower supporting edge to prevent the steel belt from sagging during transportation. When the steel belt sags, the edge of the steel belt contacts the guide surface and is guided upward, so that the edge of the steel belt remains between the upper limit edge and the lower supporting edge. 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- first 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 ;51-first support frame;511-slot hole;52-support roller;53-pressing 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-second guide groove;6241-fixed edge;625-guide sheet;6251-fixed column;7-molding space. 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 steel strip guiding device for the corrugated tube production forming mechanism described in the utility model comprises a support unit 5 and a guide unit 6, wherein 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 parallel to the support roller 52, and the support roller 52 is parallel to the support roller 52. The two ends of the rotating shaft 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. 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 on the first support frame 51 by the cooperation of multiple 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 second guide groove 624 is opened on the guide platform 623, and the guide piece 625 is inserted into the second guide groove 624. In order to facilitate the fixing of the position of the limiting wheel 61, the upper surface of the guide piece 625 A positioning column is extended upward, and a nut is screwed to the positioning column. Fixed edges 6241 are extended inward on both sides of the second guide groove 624 respectively, and the nut can be tightly pressed against the fixed edge 6241. A long slot 6221 is opened on one side of the sleeve, 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 sleeve. The height of the limiting wheel 61 is adjusted by the cooperation of the guide column 621 and the guide sleeve. The distance between the two limiting wheels 61 is adjusted by the cooperation of the guide sheet 625 and the second guide groove 624, and 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 a plurality of extrusion units are arranged between the support roller 52 and the guide unit 6, and each group of extrusion units includes two extrusion rollers 2 arranged opposite to each other, and the middle part of one of the extrusion rollers 2 protrudes outwards and the middle part of the other extrusion roller 2 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 2 protruding outwards in the middle gradually increases, and the diameter of the concave part of the extrusion roller 2 concave in the middle gradually decreases. And each extrusion unit also includes two bases 11, and each base 11 extends two guide plates 12 vertically upward, and the two guide plates 12 on the same base 11 are arranged opposite to each other, 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 matching squeezing rollers 2 connected to the fixing frame are placed between the two slideways 1. 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. 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 a first guide groove 22. The guide rib 13 is placed in the first guide groove 22. Each bearing seat 21 can move along the length direction of the slideway 1. The two bearing seats 21 of the lower squeezing roller 2 respectively extend support rods downward, and the bottom ends of the support rods can be against the base 11, so as to apply support force to the lower squeezing roller 2. Specifically, the bottom ends of the support rods are provided with threads, and two nuts are screwed on the threads. The connecting seat is provided with through holes, and the support rods can be inserted into the through holes, and the nuts can be tightly against the upper surface of the connecting seat. The effective support length of the support rods is adjusted by the nuts, and the positions of the two nuts are fixed to each other by the design of double nuts to prevent loosening and change of the support force. Optionally, during the installation process, the bearing seats 21 can be placed in the slideway 1 first, and the heights 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 squeezing roller 2 is placed between the two bearing seats 21 and passed through the rotating shaft to complete the installation of the lower squeezing 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, and the stud 24 is screwed with the screw sleeve 4. Optionally, in this embodiment, the linkage bridge 23 includes two avoidance portions 231 and a linkage beam 232 connecting the two avoidance portions 231. The linkage beam 232 and the two avoidance portions 231 enclose a U-shape, and 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 the large-diameter hole section of the stepped hole and the surface of the connecting beam. The bottom end of the stud 24 extends outwards with a flange 241, and 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, and 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 to facilitate controlling 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, and 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.

Claims

1. A steel belt guiding device for a corrugated pipe production and forming mechanism, characterized in that: include A support roller, on which the steel belt can be overlapped; The guide unit comprises two limiting wheels arranged opposite to each other, the steel belt is placed between the two limiting wheels, the edge of each limiting wheel extends outwardly to form an upper limit edge and a lower support edge, and a space for the steel belt to pass is left between the upper limit edge and the lower support edge; A forming space is reserved between the supporting roller and the guide unit.

2. A steel strip guiding device for a corrugated pipe production and forming mechanism according to claim 1, characterized in that: A pressure roller is also arranged above the supporting roller, and the pressure roller presses on the steel belt.

3. The steel strip guiding device for a corrugated tube production and forming mechanism according to claim 1, characterized in that: The lower supporting edge includes a supporting surface and a guiding surface. The supporting surface is arranged opposite to the upper limiting edge. The guiding surface is formed by the supporting surface extending downwardly in an inclined manner. The edge of the steel belt overlaps the supporting surface.

4. The steel strip guiding device for a corrugated tube production and forming mechanism according to claim 1, characterized in that: The supporting roller and the two limiting wheels can move in the vertical direction.

5. The steel strip guiding device for a corrugated tube production and forming mechanism according to claim 1, characterized in that: A first support frame is provided at both ends of the support roller, and a slot is opened on the first support frame. Both ends of the rotating shaft of the support roller pass through the slot respectively, and the ends of the rotating shaft are screwed with nuts to fix the support roller on the first support frame through the nuts.

6. The steel strip guiding device for a corrugated tube production and forming mechanism according to claim 1, characterized in that: The guide unit also includes a second support frame, which includes a guide column, a sleeve is sleeved on the guide column, and the sleeve can move along the direction of the guide column. A guide platform is provided on the top of the sleeve, and a guide groove is opened on the guide platform. The limiting wheel is rotatably connected to the end of a guide piece, and the guide piece is inserted into the guide groove.

7. A steel strip guiding device for a corrugated tube production and forming mechanism according to claim 6, characterized in that: A positioning column is extended upward from the upper surface of the guide piece, a nut is screwed to the positioning column, and fixing edges are respectively extended inward from both sides of the guide groove, and the nut can be tightly pressed against the fixing edges.

8. The steel strip guiding device for a corrugated tube production and forming mechanism according to claim 6, characterized in that: A long slot is opened on one side of the sleeve, and a screw hole is opened on the guide column. A bolt can pass through the long slot and be screwed with the screw hole, and the guide column can be fixed to the sleeve.

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