Two-roller straightening machine capable of conveniently and quickly changing rollers

Abstract

The utility model discloses a two-roller straightening machine capable of conveniently and quickly changing rollers, which belongs to the field of two-roller straightening machines and comprises a lower machine base, an upper machine base, a concave roller and a convex roller, a guide column is fixedly connected between the lower machine base and the upper machine base, the top surface of the lower machine base is fixedly connected with a rotating seat, and the bottom surface of the upper machine base is fixedly connected with a rotating lifting seat. The output ends of the rotating seat and the rotating lifting seat are fixedly connected with bearing seats correspondingly, rotating shafts are fixedly connected into bearings in the two sides of the bearing seats in a penetrating mode, the inner side ends of the rotating shafts are fixedly connected with connecting mechanisms, and the concave roller and the convex roller are fixedly connected between the symmetrical connecting mechanisms in the upper bearing seat and the lower bearing seat correspondingly. The connecting mechanism comprises a connecting base, a fixing rod, a compression spring, a movable plate, a clamping plate, an isosceles trapezoid plate and a screw knob, the arranged connecting mechanism is matched with the two-roller straightening machine for use, the purpose of conveniently disassembling, assembling and replacing the concave roller and the convex roller can be achieved, disassembling, assembling and replacing operation is simple and rapid, and then the working efficiency of the two-roller straightening machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of two-roll straighteners, and in particular to a two-roll straightener that allows for convenient and quick roll changing. Background Technology

[0002] A two-roll straightener is a highly efficient metal processing device, primarily composed of a pair of straightening rollers arranged at a specific angle. During operation, the workpiece to be straightened passes through the special gap formed by these rollers and advances spirally. In this process, the workpiece is subjected to uneven pressure, gradually changing its original bending shape to achieve straightening. Two-roll straighteners are characterized by high straightening accuracy, strong adaptability, and ease of operation. They are widely used in the straightening of metal materials such as bars and tubes, significantly improving the dimensional accuracy and surface quality of products.

[0003] In existing technologies, during prolonged use, the surfaces of the convex and concave rollers on two-roll straighteners gradually wear down due to friction, causing changes in their shape and dimensions. This wear not only reduces straightening accuracy but may also affect the surface quality of the product. Therefore, it is necessary to replace the convex and concave rollers. However, in current two-roll straighteners, the convex and concave rollers are mostly connected to bearing housings via keys or bolts and fixedly connected to the rotating shaft inside the bearing housing. When the convex or concave rollers are worn or damaged and need to be replaced, it is necessary to manually disassemble the bearing housing and rotating shaft with auxiliary tools before the connection to the convex or concave roller can be severed. This makes the disassembly and replacement of the convex or concave rollers cumbersome and also inconvenient for subsequent installation. Consequently, the disassembly and replacement operations of the two-roll straightener are inconvenient, time-consuming, and labor-intensive, reducing the working efficiency of the two-roll straightener. Utility Model Content

[0004] The main purpose of this invention is to provide a two-roll straightener that allows for convenient and quick roll changing, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The utility model provides a two -roll straightener of convenient and quick roll replacement, including lower bed, upper bed, concave roll and convex roll, fixedly connected with guide column between lower bed and upper bed, and the top surface of lower bed is fixedly connected with rotary seat, the bottom surface of upper bed is fixedly connected with rotary lifting seat, and the output of rotary seat and rotary lifting seat is fixedly connected with bearing seat respectively, and the bearing in bearing seat both sides is inserted fixedly connected with rotary shaft, the inside end of rotary shaft is fixedly connected with connecting mechanism, and concave roll and convex roll are fixedly connected between the symmetrical connecting mechanism in upper bearing seat and lower bearing seat respectively, connecting mechanism includes connecting seat, fixed link, compression spring, movable plate, clamping plate, isosceles trapezoidal plate and screw knob, and the inside of connecting seat is fixedly connected with fixed link, the outside of fixed link is sleeved with compression spring, and the both ends of compression spring are fixedly connected with movable plate respectively, movable plate is movably connected with fixed link through the connecting hole on the top surface side, and clamping plate is fixedly connected on the outside wall of movable plate, isosceles trapezoidal plate is movably connected in the inside of connecting seat, and screw knob is movably connected with isosceles trapezoidal plate through the rotating block on the inside end.

[0007] Preferably, a set of symmetrical connecting plates are fixedly installed on the left and right end walls of the concave roll and the convex roll respectively, and a positioning plug is fixedly installed on the opposite wall of each symmetrical connecting plate.

[0008] Preferably, a clamping groove is further formed on the opposite wall of each symmetrical connecting plate.

[0009] Preferably, the connecting seat is fixedly installed on the output end of the rotary shaft, a set of symmetrical positioning slots corresponding to the positioning plugs are formed on the outer wall of the connecting seat, an inner cavity is further formed in the connecting seat, a through hole is formed on the inner top surface and the inner bottom surface of the inner cavity respectively, and a threaded hole is further formed on the outer wall of the connecting seat in communication with the inner cavity.

[0010] Preferably, the screw knob is threadedly connected with the threaded hole, a rotating block is fixedly installed on the inside end of the screw knob, the isosceles trapezoidal plate is movably installed in the inner cavity, a convex groove is formed on the side wall of the isosceles trapezoidal plate, and the rotating block is movably installed in the convex groove.

[0011] Preferably, a fixed link is further fixedly installed in the inner cavity, a compression spring is sleeved on the outside of the fixed link, movable plates are fixedly installed on the upper and lower ends of the compression spring respectively, a connecting hole is formed on the top surface side of each movable plate and movably installed with the fixed link through the connecting hole, a right-angled trapezoidal plate is fixedly installed on the inside wall of each movable plate, and clamping plates are fixedly installed on the outside wall of each movable plate and inserted into the clamping grooves through the through holes.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a connecting mechanism cooperation upper two roll straightening machine's use is provided, when needing to replace the concave roller or convex roller, rotates screw knob and moves the isosceles trapezoidal plate to the outside direction through the rotating block after, the isosceles trapezoidal plate will no longer extrude the right angle trapezoidal plate, makes the compression spring to make the tight operation, and drives the movable plate to drive fixed rod to move to the inside direction through the connecting hole, makes the movable plate drive the clamping plate to move from the clamping groove and enter the through -opening, and then pushes the concave roller or convex roller and lets the positioning insert strip move from the positioning slot, can detach the concave roller or convex roller from the bearing seat, and when replacing the concave roller and convex roller, after inserting the positioning insert strip on the both ends connecting plate into the positioning slot, reverse screw knob is rotated and pushes the isosceles trapezoidal plate through the rotating block, and the isosceles trapezoidal plate extrudes the right angle trapezoidal plate on both sides and lets the movable plate move to the outside direction along the fixed rod through the connecting hole, and the clamping plate is inserted into the clamping groove through the through -opening, can complete the installation to the concave roller and convex roller, and simultaneously, the rotary shaft can drive the concave roller or convex roller to rotate and use when rotating through the connecting seat, thereby reach the purpose that the concave roller and convex roller are convenient to dismount and replace, and the operation is simple and fast, and further improve the work efficiency of two roll straightening machine. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is whole structure schematic diagram of the utility model;

[0015] Figure 2 It is whole structure schematic diagram of the concave roller of the utility model;

[0016] Figure 3 It is cutaway schematic diagram of the connecting seat of the utility model;

[0017] Figure 4 It is structure split schematic diagram of the connecting mechanism of the utility model.

[0018] In the drawing: 1, lower bed; 2, upper bed; 3, guide column; 4, rotary seat; 5, rotary lifting seat; 6, bearing seat; 7, rotary shaft; 8, connecting mechanism; 9, concave roller; 10, convex roller; 11, connecting plate; 12, positioning insert strip; 13, clamping groove; 14, connecting seat; 15, positioning slot; 16, inner chamber; 17, through -opening; 18, screw hole; 19, fixed rod; 20, compression spring; 21, movable plate; 22, connecting hole; 23, right angle trapezoidal plate; 24, clamping plate; 25, isosceles trapezoidal plate; 26, convex groove; 27, screw knob; 28, rotating block. PREFERRED EMBODIMENT

[0019] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] For example, Figure 1 - Figure 4As shown, a kind of two-roll straightening machine of convenient and fast roll replacement, including lower bed 1, upper bed 2, concave roll 9 and convex roll 10, fixedly connected with guide column 3 between lower bed 1 and upper bed 2, and the top surface of lower bed 1 is fixedly connected with rotating seat 4, the bottom surface of upper bed 2 is fixedly connected with rotating lifting seat 5, and the output end of rotating seat 4 and rotating lifting seat 5 is fixedly connected with bearing seat 6 respectively, and rotating shaft 7 is fixedly connected in the bearing of the both sides of bearing seat 6, rotating seat 4 and rotating lifting seat 5 can drive bearing seat 6 to rotate and incline, so that concave roll 9 and convex roll 10 are inclined synchronously, and the distance between concave roll 9 and convex roll 10 can be adjusted by rotating lifting seat 5 to adapt to the processing requirement of workpiece, finally, rotating shaft 7 is driven to rotate in bearing seat 6 under the driving of external driving equipment, then connecting seat 14 is rotated, so that concave roll 9 and convex roll 10 installed between connecting seat 14 are rotated, so that workpiece completes straightening operation when passing through between concave roll 9 and convex roll 10;

[0021] The inside end of rotating shaft 7 is fixedly connected with connecting mechanism 8, and concave roll 9 and convex roll 10 are fixedly connected between symmetrical connecting mechanism 8 in upper and lower bearing seat 6 respectively, connecting mechanism 8 includes connecting seat 14, fixed rod 19, compression spring 20, movable plate 21, clamping plate 24, isosceles trapezoidal plate 25 and screw knob 27, and fixed rod 19 is fixedly connected in the inside of connecting seat 14, compression spring 20 is sleeved on the outside of fixed rod 19, and the both ends of compression spring 20 are fixedly connected with movable plate 21 respectively, movable plate 21 is movably connected with fixed rod 19 through the connecting hole 22 on the top surface side, clamping plate 24 is fixedly connected on the outside wall of movable plate 21, isosceles trapezoidal plate 25 is movably connected in the inside of connecting seat 14, and screw knob 27 is movably connected with isosceles trapezoidal plate 25 through rotating block 28 on the inside end.

[0022] As shown in Figure 2 The left and right end walls of concave roll 9 and convex roll 10 are respectively fixedly installed with a group of symmetrical connecting plates 11, and the opposite walls of symmetrical connecting plates 11 are respectively fixedly installed with positioning inserts 12, and the positioning inserts 12 on connecting plates 11 are used for positioning installation of concave roll 9 and convex roll 10;

[0023] As shown in Figure 2 The opposite walls of symmetrical connecting plates 11 are also respectively provided with clamping grooves 13, and the clamping grooves 13 are used for limiting and fixing concave roll 9 and convex roll 10 with clamping plate 24;

[0024] As shown in Figure 3As shown, the connecting seat 14 is fixedly installed on the output end of the rotating shaft 7, and after the connecting seat 14 is driven to rotate by the rotating shaft 7, the concave roller 9 and the convex roller 10 between the connecting seat 14 are also driven to rotate. A group of symmetrical positioning slots 15 corresponding to the positioning bars 12 are formed on the outer wall of the connecting seat 14, and after the positioning bars 12 are inserted into the positioning slots 15, the concave roller 9 and the convex roller 10 are positioned and installed in the bearing seat 6. An inner cavity 16 is also formed in the connecting seat 14, which is used in cooperation with the movement of each part of the connecting mechanism 8. The inner top surface and the inner bottom surface of the inner cavity 16 are respectively provided with a through hole 17, which can ensure that the clamping plate 24 moves in and out of the inner cavity 16. A threaded hole 18 is also formed in the outer wall of the connecting seat 14 and communicates with the inner cavity 16. The threaded hole 18 is used to cooperate with the screw knob 27 to realize the rotating operation.

[0025] As shown in the figure, Figure 4 The screw knob 27 is screwed with the threaded hole 18, and the inner side end of the screw knob 27 is fixedly installed with a rotating block 28. The isosceles trapezoidal plate 25 is movably installed in the inner cavity 16, and the side wall of the isosceles trapezoidal plate 25 is provided with a convex groove 26. The rotating block 28 is movably installed in the convex groove 26. Rotating the screw knob 27 can push the isosceles trapezoidal plate 25 to move in the inner cavity 16 to extrude or release the right trapezoidal plate 23.

[0026] As shown in the figure, Figure 4 The inner cavity 16 is also fixedly installed with a fixed rod 19, and the outer part of the fixed rod 19 is sleeved with a compression spring 20. The upper and lower ends of the compression spring 20 are respectively fixedly installed with movable plates 21, and the top surface of the movable plate 21 is provided with a connecting hole 22 and movably installed with the fixed rod 19 through the connecting hole 22. The right trapezoidal plate 23 is fixedly installed on the inner side wall of the movable plate 21, and the clamping plate 24 is fixedly installed on the outer side wall of the movable plate 21 and inserted into the clamping groove 13 through the through hole 17. When the right trapezoidal plate 23 is extruded by the isosceles trapezoidal plate 25, the movable plate 21 will move outward along the fixed rod 19 through the connecting hole 22, and force the compression spring 20 to contract until the clamping plate 24 on the outer side wall of the movable plate 21 is inserted into the clamping groove 13 through the through hole 17, so as to achieve the purpose of conveniently installing and fixing the concave roller 9 and the convex roller 10. Conversely, the concave roller 9 and the convex roller 10 can be disassembled and replaced.

[0027] The specific use principle of the connecting mechanism 8 cooperating with the upper two-roller straightening machine is as follows:

[0028] When the concave roller 9 and the convex roller 10 on the two-roller straightener need to be disassembled and replaced due to wear or damage after a long period of use, rotate the screw knob 27 on the outer wall of the connecting seat 14, which will be screwed in the threaded hole 18 and rotate the rotating block 28 at the inner side end in the convex groove 26 on the side wall of the isosceles trapezoidal plate 25, and make the rotating block 28 drive the isosceles trapezoidal plate 25 to move outward in the inner cavity 16 in the connecting seat 14. At this time, the isosceles trapezoidal plate 25 will no longer press the two straight trapezoidal plates 23 during continuous movement, and the compression spring 20 outside the fixed rod 19 will recover and contract, and drive the movable plates 21 at both ends to move in opposite directions along the fixed rod 19 through the connecting hole 22. When the clamping plate 24 installed on the outer side wall of the movable plate 21 is removed from the clamping groove 13 on the connecting plate 11 and enters the through hole 17, and the screw knob 27 cannot be rotated any more, push the concave roller 9 and the convex roller 10 to make the positioning insert 12 installed on the connecting plate 11 at both ends removed from the positioning insert groove 15 on the outer wall of the connecting seat 14, and then the concave roller 9 and the convex roller 10 that are worn or damaged can be disassembled from the bearing seat 6.

[0029] After the concave roller 9 and the convex roller 10 that are worn or damaged are disassembled, new concave rollers 9 and convex rollers 10 are reinstalled into the bearing seat 6. During installation, the concave roller 9 and the convex roller 10 are placed between the symmetrical connecting seats 14 of the bearing seat 6, and the positioning insert 12 installed on the opposite side walls of the connecting plate 11 at both ends of the concave roller 9 and the convex roller 10 is inserted into the positioning insert groove 15 on the outer wall of the connecting seat 14 connected to the rotating shaft 7 on both sides of the bearing seat 6. Then, the screw knob 27 on the outer wall of the connecting seat 14 is rotated in the opposite direction, which will be screwed in the threaded hole 18 and push the isosceles trapezoidal plate 25 in the inner cavity 16 inward through the rotating block 28, so that the isosceles trapezoidal plate 25 gradually presses the straight trapezoidal plate 23 outward. After the straight trapezoidal plate 23 is pressed, it will push the movable plate 21 outward, and the movable plate 21 will move outward along the fixed rod 19 through the connecting hole 22, forcing the compression spring 20 to expand. Until the clamping plate 24 on the outer side wall of the movable plate 21 is inserted into the clamping groove 13 through the through hole 17, the concave roller 9 and the convex roller 10 can be installed and fixed in the bearing seat 6, thereby achieving the purpose of facilitating the disassembly and replacement of the concave roller 9 and the convex roller 10. The disassembly and replacement operation is simple and fast, thereby improving the working efficiency of the two-roller straightener.

[0030] The above merely is preferred embodiment of the present utility model and is not used for limiting the present utility model, although the present utility model is described in detail with reference to the foregoing embodiment, however, can make various improvements and can replace the components therein with equivalent in the case of not departing from the scope of the present utility model, or make equivalent replacement to part technical features, all should be contained in the protection scope of the present utility model in the spirit and principle of the present utility model.

Claims

1. A two-roll straightener for convenient and quick roll changing, comprising a lower base (1), an upper base (2), a concave roll (9), and a convex roll (10), wherein a guide column (3) is fixedly connected between the lower base (1) and the upper base (2), and a rotating seat (4) is fixedly connected to the top surface of the lower base (1), and a rotating lifting seat (5) is fixedly connected to the bottom surface of the upper base (2), wherein bearing seats (6) are fixedly connected to the output ends of the rotating seat (4) and the rotating lifting seat (5), and rotating shafts (7) are fixedly inserted into the bearings on both sides of the bearing seats (6), characterized in that: The inner end of the rotating shaft (7) is fixedly connected to a connecting mechanism (8), and the concave roller (9) and convex roller (10) are respectively fixedly connected between the symmetrical connecting mechanisms (8) in the upper and lower bearing seats (6). The connecting mechanism (8) includes a connecting seat (14), a fixing rod (19), a compression spring (20), a movable plate (21), a clamping plate (24), an isosceles trapezoidal plate (25), and a screw knob (27). The connecting seat (14) is fixedly connected to the inside of the fixing rod (19). The compression spring (20) is sleeved on the outside of the fixed rod (19), and the two ends of the compression spring (20) are respectively fixedly connected to the movable plate (21). The movable plate (21) is movably connected to the fixed rod (19) through the connecting hole (22) on one side of the top surface, and the clamping plate (24) is fixedly connected to the outer wall of the movable plate (21). The isosceles trapezoidal plate (25) is movably connected to the inside of the connecting seat (14), and the screw knob (27) is movably connected to the isosceles trapezoidal plate (25) through the rotating block (28) on the inner end.

2. The two-roll straightener for convenient and quick roll changing according to claim 1, characterized in that: A set of symmetrical connecting plates (11) are fixedly installed on the left and right end walls of the concave roller (9) and the convex roller (10), and positioning inserts (12) are fixedly installed on the opposite side walls of the symmetrical connecting plates (11).

3. A two-roll straightener for convenient and quick roll changing according to claim 2, characterized in that: The symmetrical connecting plates (11) also have slots (13) on their opposite sides.

4. A two-roll straightener for convenient and quick roll changing according to claim 3, characterized in that: The connecting seat (14) is fixedly installed on the output end of the rotating shaft (7), and a set of symmetrical positioning slots (15) corresponding to the positioning insert (12) are provided on the outer wall of the connecting seat (14). The connecting seat (14) also has an inner cavity (16), and the top and bottom surfaces of the inner cavity (16) are respectively provided with through holes (17). The connecting seat (14) also has a threaded hole (18) communicating with the inner cavity (16) on the outer wall.

5. A two-roll straightener for convenient and quick roll changing according to claim 4, characterized in that: The screw knob (27) is threadedly connected to the threaded hole (18), and a rotating block (28) is fixedly installed on the inner end of the screw knob (27). The isosceles trapezoidal plate (25) is movably installed in the inner cavity (16), and a groove (26) is provided on the side wall of the isosceles trapezoidal plate (25). The rotating block (28) is movably installed in the groove (26).

6. A two-roll straightener for convenient and quick roll changing according to claim 5, characterized in that: A fixing rod (19) is fixedly installed inside the inner cavity (16), and a compression spring (20) is fitted on the outside of the fixing rod (19). Movable plates (21) are fixedly installed at the upper and lower ends of the compression spring (20), and a connecting hole (22) is opened on one side of the top surface of the movable plate (21) and is movably installed together with the fixing rod (19) through the connecting hole (22). A right-angled trapezoidal plate (23) is fixedly installed on the inner side wall of the movable plate (21), and a card plate (24) is fixedly installed on the outer side wall of the movable plate (21) and inserted into the card slot (13) through the through-hole (17).

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