Device and method for preventing axis offset in a feed roller
By combining a support, mounting frame, connecting strip, and adjustment control, the problem of feed roller centerline offset was solved, and the uniformity of billet deformation during the rolling process was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHWESTERN POLYTECHNICAL UNIV
- Filing Date
- 2023-12-28
- Publication Date
- 2026-07-03
AI Technical Summary
In the prior art, the feed roller is prone to offset of its central axis under the squeezing action of the die roller, resulting in the deformation of the blank contacted at the lower end of the roller being significantly less than that of the blank contacted at the upper end.
The device employs a combination of supports, mounting frames, connecting strips, adjustment controls, and fixed seats. The adjustment controls are tangent to the surface of the feed roller and provide resistance to prevent the central axis from shifting, ensuring that the deformation of the blanks contacting the lower and upper ends of the rollers is consistent.
It effectively prevents the offset of the feed roller's central axis, ensures the consistency of the deformation degree of the blank in contact with the lower and upper ends of the roller, and improves the uniformity of the rolling process.
Smart Images
Figure CN117798231B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of roller pressing die technology, and in particular to a device and method for preventing the central axis of the feed roller from shifting. Background Technology
[0002] Roll forming uses rotating dies as the main forming components and processes various parts based on the principle of rolling bending. Metal sheets are pressed between the dies by the opposing rotation of the concave and convex dies through friction. The micro-structures on the die surface apply bending force to the sheet, causing plastic deformation and forming a component with a specific cross-sectional shape.
[0003] A certain working gap is maintained between the feed roll and the die roll. When the roll forming die is working, the billet is fed into the space between the two rolls from one end of the gap with a certain pressure. At this time, the feed roll is subjected to the squeezing action of the die roll. When the roll die is long, the feed roll installed on the roll forming equipment can be regarded as a vertical cantilever beam. Since the lower end of the roll away from the feed roll base can be regarded as the end of the cantilever beam away from the fixed end, it is less constrained by the feed roll base than the upper end of the roll closer to the feed roll base. As a result, the central axis of the feed roll is offset away from the die roll, especially the lower end of the roll, which is more obvious. This causes the deformation of the billet contacted by the lower end of the roll to be significantly less than the deformation of the billet contacted by the upper end. Summary of the Invention
[0004] This application provides a device and method for preventing the central axis of a feed roller from shifting, which can solve the problem that the central axis of the feed roller shifts away from the die roller due to the squeezing action of the die roller.
[0005] In a first aspect, embodiments of the present invention provide a device for preventing the central axis of a feed roller from shifting, comprising a support, a mounting frame, a connecting strip, two adjusting rods, and two fixed seats; the support includes a fixed plate and an adjusting block, the bottom of the fixed plate being connected to the top of the adjusting block so that the bottom surface of the fixed plate and the front end surface of the adjusting block form a placement space, the adjusting block being provided with a first insertion hole along its length; the connecting strip being disposed within the first insertion hole, and the width of the connecting strip being smaller than the width of the first insertion hole; the mounting frame being provided with a through groove along its length; the fixed seats include a retaining clip. The device comprises a mounting bracket and a fixing block, wherein the locking block is disposed on the top of the fixing block and engages with the through slot; one adjusting control is fixed to the lower end of one of the fixing blocks, each adjusting control being able to provide a cylindrical surface, and the cylindrical surfaces of the two adjusting control are used to abut against the surface of the feed roller of the rolling die; a first fixing member passes through the mounting bracket, the locking block and the adjusting block and is fixed to the connecting strip, thereby positioning the mounting bracket in the placement space; the connecting strip is movable along the width direction of the first insertion hole; when the connecting strip is moved into place, the adjusting block and the connecting strip are fixed by the second fixing member.
[0006] In conjunction with the first aspect, in one possible implementation, the fixing base further includes an adjustment block; the adjustment block is disposed on the side of the fixing block facing the adjustment block; the adjustment block is provided with two second insertion holes along the width direction, one of the adjustment blocks is disposed in one of the second insertion holes, and the length of the second insertion hole is longer than the length of the adjustment block.
[0007] In conjunction with the first aspect, in one possible implementation, the device for preventing the feed roller's central axis from shifting further includes two stabilizing blocks; one of the stabilizing blocks is disposed within a second insertion hole; the adjusting block, the stabilizing block, and the connecting strip are fixed by the second fastener.
[0008] In conjunction with the first aspect, in one possible implementation, the second jack is a through hole.
[0009] In conjunction with the first aspect, in one possible implementation, the through slot is a T-shaped slot; the shape of the card block is adapted to the shape of the through slot.
[0010] In conjunction with the first aspect, in one possible implementation, the length of the card block is longer than the length of the fixing block.
[0011] In conjunction with the first aspect, in one possible implementation, the adjustment control includes a bearing and a bolt; the bearing is sleeved on the bolt, and its front end is fixed to the bottom of the fixing block; the outer surfaces of the two bearings are used to abut against the surface of the feed roller of the roll forming die.
[0012] In conjunction with the first aspect, in one possible implementation, an annular boss is provided at the position where the bolt is fixed on the bottom surface of the fixing block; the inner diameter of the annular boss is less than or equal to the inner diameter of the inner ring of the bearing, and the outer diameter is less than or equal to the inner diameter of the outer ring of the bearing.
[0013] In conjunction with the first aspect, in one possible implementation, the bolt comprises a nut, a smooth rod, and a threaded rod connected in sequence; the diameter of the threaded rod < the diameter of the smooth rod < the diameter of the nut.
[0014] Secondly, embodiments of the present invention provide a method for preventing the centerline of a feed roller from shifting, using the aforementioned device for preventing the centerline of a feed roller from shifting, comprising:
[0015] The adjustment control is fixed to the lower end of a fixed block on a fixed base;
[0016] The locking block of the fixing seat is inserted into the through slot provided on the mounting bracket;
[0017] The mounting bracket is placed in the placement space formed by the bottom surface of the fixing plate of the support and the front end surface of the adjusting block. The connecting strip is placed in the first insertion hole of the adjusting block. The first fixing member passes through the mounting bracket, the card block and the adjusting block and is fixed to the connecting strip placed in the first insertion hole.
[0018] When the connecting strip is moved into place, the adjusting block and the connecting strip are fixed by the second fastener.
[0019] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
[0020] This invention provides a device for preventing the central axis of a feed roller from shifting, comprising a support, a mounting frame, a connecting strip, two adjusting rods, and two fixed seats. The support includes a fixed plate and an adjusting block. The bottom of the fixed plate is connected to the top of the adjusting block so that the bottom surface of the fixed plate and the front end face of the adjusting block form a placement space. The adjusting block has a first insertion hole along its length. The connecting strip is disposed within the first insertion hole, and the width of the connecting strip is less than the width of the first insertion hole. The mounting frame has a through groove along its length. The fixed seats include a locking block and a fixing block. The locking block is disposed on the top of the fixing block and engages with the through groove. One adjusting rod is fixed to the lower end of one fixed block. Each adjusting rod provides a cylindrical surface, and the cylindrical surfaces of the two adjusting rods abut against the surface of the feed roller of the rolling die. A first fixing member passes through the mounting frame, the locking block, and the adjusting block and is fixed to the connecting strip, positioning the mounting frame in the placement space. The connecting strip can move along the width direction of the first insertion hole. When the connecting strip is in place, the adjusting block and the connecting strip are fixed by a second fixing member.
[0021] The device for preventing the central axis of the feed roller from shifting, provided in this embodiment of the invention, involves fixing an adjustment control to the lower end of a fixed block on a fixed base. Two locking blocks from the fixed base are then inserted into the through slots of a mounting frame from both ends. The mounting frame is placed within the space formed by the bottom surface of the fixed plate of the support and the front end surface of the adjustment block. A connecting strip is placed in the first insertion hole of the adjustment block. A first fixing member passes through the mounting frame, locking blocks, and adjustment block and is fixed to the connecting strip in the first insertion hole. The connecting strip can move along the width direction of the first insertion hole, thereby causing the mounting frame and locking blocks to move relative to the adjustment block. Since the adjustment control is fixed to the lower end of the fixed block, it can move relative to the adjustment block, thus achieving position adjustment of the adjustment control along the width direction. When the connecting strip is in place, the adjustment block and the connecting strip are fixed by a second fixing member. The cylindrical surface of the adjustment control is tangent to the surface of the feed roller and provides a resisting force, preventing the central axis of the feed roller from shifting away from the die roller, thereby ensuring that the deformation degree of the blank contacted at the lower end of the roller is consistent with the deformation degree of the blank contacted at the upper end. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 Schematic diagram of the structure of the device for preventing the feed roller centerline from shifting according to the embodiments of this application. Figure 1 ;
[0024] Figure 2 Schematic diagram of the structure of the device for preventing the feed roller centerline from shifting according to the embodiments of this application. Figure 2 ;
[0025] Figure 3 Explosion diagram of the device for preventing the feed roller centerline from shifting according to the embodiments of this application. Figure 1 ;
[0026] Figure 4 Explosion diagram of the device for preventing the feed roller centerline from shifting according to the embodiments of this application. Figure 2 ;
[0027] Figure 5 This is a schematic diagram of the structure of the fixing base provided in the embodiment of this application.
[0028] Icons: 1-Support; 11-Fixing plate; 12-Adjusting block; 121-First insertion hole; 122-Second insertion hole; 2-Mounting bracket; 21-Through groove; 3-Connecting strip; 4-Adjusting control; 41-Bearing; 42-Bolt; 5-Fixing seat; 51-Clamping block; 52-Fixing block; 53-Adjusting block; 54-Annular boss; 6-Stabilizing block; 7-Feed roller; 8-Die roller. Detailed Implementation
[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.
[0031] Please refer to Figures 1-4 As shown in the figure, an embodiment of the present invention provides a device for preventing the central axis of the feed roller from shifting, including a support 1, a mounting frame 2, a connecting strip 3, two adjustment controls 4 and two fixed seats 5.
[0032] The support 1 includes a fixed plate 11 and an adjusting block 12. The bottom of the fixed plate 11 is connected to the top of the adjusting block 12 so that the bottom surface of the fixed plate 11 and the front end surface of the adjusting block 12 form a placement space. The adjusting block 12 is provided with a first insertion hole 121 along its length. Figure 2 As shown, the length direction refers to the direction of the OX axis, the width direction refers to the direction of the OY axis, and the height direction refers to the direction of the OZ axis. The front end of the fixing plate 11 of the support 1 is connected to the feed roller 7, and the rear end is connected to the rolling equipment.
[0033] The connecting strip 3 is disposed within the first socket 121, and the width of the connecting strip 3 is less than the width of the first socket 121. The connecting strip 3 is generally hexahedral in shape for ease of processing and installation. The first socket 121 is generally a through hole. For example, the width of the connecting strip 3 is 20mm, and the width of the first socket 121 is 25mm.
[0034] like Figure 3 As shown, the mounting bracket 2 is provided with a through groove 21 along its length. The fixing base 5 includes a locking block 51 and a fixing block 52. The locking block 51 is disposed on the top of the fixing block 52 and is engaged with the through groove 21. An adjustment control 4 is fixed to the lower end of a fixing block 52. Each adjustment control 4 can provide a cylindrical surface. The cylindrical surfaces of the two adjustment controls 4 are used to abut against the surface of the feed roller 7 of the rolling die.
[0035] After passing through the mounting bracket 2, the locking block 51, and the adjusting block 12, the first fixing member is fixed to the connecting strip 3, and the mounting bracket 2 is located in the placement space. The connecting strip 3 can move along the width direction of the first insertion hole 121, thereby driving the mounting bracket 2 and the locking block 51 to move relative to the adjusting block 12. Since the adjusting control 4 is fixed at the lower end of the fixing block 52, it can drive the adjusting control 4 to move relative to the adjusting block 12. When the connecting strip 3 moves into place, the adjusting block 12 and the connecting strip 3 are fixed by the second fixing member.
[0036] The device for preventing the feed roller's central axis from shifting, provided in this embodiment of the invention, involves fixing the adjustment control 4 to the lower end of the fixing block 52 of the fixing base 5. Then, the locking blocks 51 of the two fixing bases 5 are inserted into the through groove 21 of the mounting frame 2 from both ends. The mounting frame 2 is placed in the placement space formed by the bottom surface of the fixing plate 11 of the support 1 and the front end surface of the adjustment block 12. The connecting strip 3 is placed in the first insertion hole 121 of the adjustment block 12. The first fixing member passes through the mounting frame 2, the locking block 51, and the adjustment block 12 and is fixed to the connecting strip 3 in the first insertion hole 121. The connecting strip 3 can move along the width direction of the first insertion hole 121, thereby causing the mounting frame 2 and the locking block 51 to move relative to the adjustment block 12. Since the adjustment control 4 is fixed to the lower end of the fixing block 52, it can move relative to the adjustment block 12, thus achieving position adjustment of the adjustment control 4 along the width direction. When the connecting strip 3 is in place, the adjustment block 12 and the connecting strip 3 are fixed by the second fixing member. The cylindrical surface of the adjustment control 4 is tangent to the surface of the feed roller 7 and provides a resisting force to prevent the central axis of the feed roller 7 from shifting away from the die roller 8, thereby making the deformation degree of the blank contacted at the lower end of the roller consistent with the deformation degree of the blank contacted at the upper end.
[0037] Furthermore, such as Figure 3 As shown, the fixing base 5 also includes an adjusting block 53. The adjusting block 53 is disposed on the side of the fixing block 52 facing the adjusting block 12. Figure 3 and Figure 4 As shown, the adjusting block 12 has two second insertion holes 122 along the width direction, and a regulating block 53 is disposed in one of the second insertion holes 122. The length of the second insertion hole 122 is longer than the length of the regulating block 53. For example, the length of the regulating block 53 is 14 mm, and the length of the second insertion hole 122 is 20 mm. When the regulating block 53 moves within the second insertion hole 122, it can drive the adjusting control 4 to move, thereby adjusting the distance between the two adjusting control 4 so that the two adjusting control 4 can press against the surface of the feed roller 7. When the regulating block 53 is moved into place, it is fixed to the adjusting block 12 by a third fixing member. For example, by pressing the regulating block 53 with M8 set screws through the M8 threads on the side and bottom of the adjusting block 12, the position in the length direction can be fixed.
[0038] like Figure 3 and Figure 4 As shown, the device for preventing the feed roller's central axis from shifting also includes two stabilizing blocks 6. One stabilizing block 6 is disposed within a second insertion hole 122. Generally, the length of the stabilizing block 6 matches the length of the second insertion hole 122. The adjusting block 12, the stabilizing block 6, and the connecting strip 3 are fixed by a second fixing member. The stabilizing block 6, due to the large area where the second fixing member is fixed, allows the second fixing member to be fixed more firmly, resulting in a better fixing effect.
[0039] Furthermore, the second socket 122 is a through hole, which facilitates the manufacturing of the second socket 122.
[0040] Optional, such as Figures 1-4 As shown, the through groove 21 is a T-shaped groove. The shape of the locking block 51 matches the shape of the through groove 21. This allows the locking block 51 and the through groove 21 to have a good fixing effect. Because the T-shape has an outer edge, the locking block 51 is not easy to fall out of the through groove 21 when subjected to downward force. Furthermore, the upper part of the locking block 51 is an arc surface, which facilitates the manufacture of the locking block 51, and the arc surface also makes it easier for the locking block 51 to be inserted into the through groove 21 without getting stuck. Of course, the cross-section of the upper part of the locking block 51 can also be rectangular or inverted trapezoidal.
[0041] like Figure 3 As shown, the length of the locking block 51 is longer than the length of the fixing block 52, so that the lengths of the two locking blocks 51 match the length of the through slot 21. When the length of the locking block 51 is longer than the length of the fixing block 52, the two fixing seats 5 are symmetrically arranged and their opposing surfaces are flush.
[0042] like Figures 1-4As shown, the adjustment control 4 includes bearings 41 and bolts 42. Bearings 41 are fitted onto bolts 42, with their front ends fixed to the bottom of the fixing block 52. The outer surfaces of the two bearings 41 abut against the surface of the feed roller 7 of the rolling die. The adjustment control 4 provided in this embodiment has a simple structure and is easy to implement. The two bearings 41 are symmetrically distributed on both sides of the feed trajectory of the feed roller 7, which can prevent the central axis of the feed roller 7 from shifting to either side of the feed trajectory. Simultaneously, by configuring both the bearings of the feed roller 7 and the bearings 41 of the adjustment control 4 as having fixed inner rings and rotating outer rings, violent collisions between the feed roller 7 and the supporting die can be avoided, ensuring a smooth process.
[0043] Furthermore, such as Figure 5 As shown, an annular boss 54 is provided on the bottom surface of the fixing block 52 at the position where the bolt 42 is fixed. The inner diameter of the annular boss 54 is less than or equal to the inner diameter of the inner ring of the bearing 41, and greater than the diameter of the screw; the outer diameter is less than or equal to the inner diameter of the outer ring of the bearing 41. Therefore, when the bearing 41 is fitted onto the bolt 42 and the front end of the bolt 42 is fixed to the bottom of the fixing block 52, the annular boss 54 can cover the end face between the inner diameter of the inner ring and the inner diameter of the outer ring of the bearing 41, and hold and fix the inner ring of the bearing 41 in place. This allows the outer ring of the bearing 41 to rotate relative to the inner ring, better coordinating with the movement of the bearing of the feed roller 7, and thus preventing a violent collision between the feed roller 7 and the device preventing the feed roller's central axis from shifting. If the annular boss 54 is not provided, the bottom surface of the fixing block 52 in the fixing seat 5 will contact the end faces of the inner and outer rings of the bearing 41 simultaneously. At this time, the movement of both the inner and outer rings of the bearing 41 will be restricted, making it difficult to achieve the requirement of fixing the inner ring and rotating the outer ring.
[0044] Optionally, bolt 42 includes a nut, a smooth shaft, and a screw connected in sequence. The nut is the head of an external hexagon, the smooth shaft is the journal section, and the screw is the part that screws into the bottom screw hole of the fixing block 52. The diameter of the screw is less than the diameter of the smooth shaft, which is less than the diameter of the nut. In this application, the smooth shaft of bolt 42 serves as the journal to mate with bearing 41. Therefore, the diameter and length of the smooth shaft must conform to the corresponding dimensions of bearing 41, and the surface roughness and cylindricity must meet the accuracy requirements, which cannot be met by existing bolts. At the same time, by reducing the diameter of the screw and using a stepped shaft for bolt 42, the inner surface of bearing 41 is not damaged, and the installation and removal of bearing 41 are facilitated.
[0045] Another embodiment of the present invention provides a method for preventing the centerline of a feed roller from shifting, using the above-described device for preventing the centerline of a feed roller from shifting, comprising:
[0046] The adjustment control 4 is fixed to the lower end of the fixing block 52 of the fixing base 5; the locking block 51 of the fixing base 5 is inserted into the through groove 21 provided on the mounting frame 2; the mounting frame 2 is placed in the placement space formed by the bottom surface of the fixing plate 11 of the support 1 and the front end surface of the adjustment block 12; the connecting strip 3 is placed in the first insertion hole 121 of the adjustment block 12; the first fixing member passes through the mounting frame 2, the locking block 51 and the adjustment block 12 and is fixed to the connecting strip 3 in the first insertion hole 121; when the connecting strip 3 moves into place, the adjustment block 12 and the connecting strip 3 are fixed by the second fixing member.
[0047] Another embodiment of the present invention provides a more specific method for preventing the central axis of the feed roller from shifting. The smooth rod of bolt 42 mates with the inner ring surface of bearing 41 to form an adjustment control 4. The screw of the adjustment control 4 connects to the threaded hole at the bottom of the fixing block 52 in the fixing seat 5. The locking blocks 51 of the two fixing seats 5 are respectively inserted into the through groove 21 from both ends of the mounting frame 2. The mounting frame 2 is placed in the placement space formed by the bottom surface of the fixing plate 11 and the front end surface of the adjusting block 12. The connecting strip 3 is placed in the first insertion hole 121 of the adjusting block 12. The first fixing member passes through the mounting frame 2, the locking block 51, and the adjusting block 12 of the support 1 and is then fixed to the connecting strip 3 in the first insertion hole 121. The stabilizing block 6 is placed in the second insertion hole 122 of the adjusting block 12 in the support 1. The second fixing member passes through the adjusting block 12 and the stabilizing block 6 and is then fixed to the connecting strip 3. At this point, the adjustment control 4, the fixing seat 5, the mounting bracket 2, the connecting strip 3, and the stabilizing block 6 become a whole, and the locking blocks 51 of the two fixing seats 5 can move along the through slots 21 of the mounting bracket 2 respectively.
[0048] Adjust the position in the width direction. Move the connecting strip 3 along the width direction of the adjusting block 12 (the movement range is less than or equal to 5mm), and the adjusting control 4, the fixed seat 5, the mounting bracket 2, and the stabilizing block 6 will move simultaneously along the width direction of the adjusting block 12. Viewed from the side, when the bearing 41 of the adjusting control 4 coincides with the bearing of the feed roller 7 in the OY direction, pass the set screw through the threads on the bottom and side of the adjusting block 12 to tighten the stabilizing block 6.
[0049] Adjust the length position. Move the locking block 51 of the fixed seat 5 along the through groove 21 of the mounting bracket 2 (movement range less than or equal to 6mm) so that the surface of the bearing 41 of the adjusting control 4 is tangent to the surface of the bearing of the feed roller 7. That is, when the bearing of the feed roller 7 rotates, the bearing 41 of the adjusting control 4 can rotate simultaneously under the action of friction. Pass the set screw through the threads on the bottom and side of the adjusting block 12 to tighten the adjusting block 53 of the fixed seat 5.
[0050] The method provided in this invention can effectively prevent the feed roller's centerline from shifting during the rolling process.
[0051] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.
[0052] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.
Claims
1. A device for preventing the central axis of a feed roller from shifting, characterized in that, Includes a support, mounting bracket, connecting strip, two adjustment levers, and two fixing bases; The support includes a fixed plate and an adjusting block. The bottom of the fixed plate is connected to the top of the adjusting block so that the bottom surface of the fixed plate and the front end surface of the adjusting block form a placement space. The adjusting block is provided with a first insertion hole along the length direction. The connecting strip is disposed inside the first socket, and the width of the connecting strip is smaller than the width of the first socket; The mounting bracket is provided with a through groove along its length; The fixing base includes a locking block and a fixing block, the locking block being disposed on the top of the fixing block and locking into the through slot; One of the adjustment controls is fixed to the lower end of one of the fixed blocks, each of the adjustment controls can provide a cylindrical surface, and the cylindrical surfaces of the two adjustment controls are used to abut against the surface of the feed roller of the rolling die; The adjustment mechanism includes a bearing and a bolt; The bearing is fitted onto the bolt, and its front end is fixed to the bottom of the fixing block; The outer surfaces of the two bearings are used to abut against the surface of the feed roller of the roll forming die; After passing through the mounting bracket, the locking block, and the adjusting block, the first fixing member is fixed to the connecting strip, and the mounting bracket is positioned in the placement space. The connecting strip can move along the width direction of the first insertion hole. When the connecting strip is moved into place, the adjusting block and the connecting strip are fixed by the second fixing member. The mounting base also includes an adjustment block; The adjustment block is disposed on the side of the fixed block facing the adjustment block; The adjusting block is provided with two second sockets along the width direction, and one adjusting block is disposed in one of the second sockets. The length of the second socket is longer than the length of the adjusting block. It also includes two stabilizing blocks; One of the stabilizing blocks is disposed within one of the second sockets; The adjusting block, the stabilizing block, and the connecting strip are fixed by the second fastener.
2. The device for preventing offset of the feed roller's central axis according to claim 1, characterized in that, The second socket is a through hole.
3. The device for preventing offset of the feed roller's central axis according to claim 1, characterized in that, The through groove is a T-shaped groove; The shape of the card block is adapted to the shape of the through slot.
4. The device for preventing offset of the feed roller's central axis according to claim 1 or 3, characterized in that, The length of the card block is longer than the length of the fixing block.
5. The device for preventing offset of the feed roller's central axis according to claim 1, characterized in that, An annular boss is provided on the bottom surface of the fixing block at the position where the bolt is fixed; The inner diameter of the annular boss is less than or equal to the inner diameter of the bearing's inner ring, and the outer diameter is less than or equal to the inner diameter of the bearing's outer ring.
6. The device for preventing offset of the feed roller's central axis according to claim 1 or 5, characterized in that, The bolt comprises a nut, a smooth rod, and a threaded rod connected in sequence; The diameter of the screw is less than the diameter of the smooth rod, which is less than the diameter of the nut.
7. A method for preventing the centerline of a feed roller from shifting, characterized in that, The device for preventing offset of the feed roller centerline as described in any one of claims 1 to 6 includes: The adjustment control is fixed to the lower end of a fixed block on a fixed base; The locking block of the fixing seat is inserted into the through slot provided on the mounting bracket; The mounting bracket is placed in the placement space formed by the bottom surface of the fixing plate of the support and the front end surface of the adjusting block. The connecting strip is placed in the first insertion hole of the adjusting block. The first fixing member passes through the mounting bracket, the card block and the adjusting block and is fixed to the connecting strip placed in the first insertion hole. When the connecting strip is moved into place, the adjusting block and the connecting strip are fixed by the second fastener.