Cutting die steel correcting device

Abstract

The utility model relates to a cutting die steel correcting device which comprises a motor used for driving a lead screw to rotate. The screw rod is matched with a screw rod sleeve; the lead screw sleeve is connected with a straightening pressing wheel. An auxiliary wheel is arranged on the opposite side of the straightening pressing wheel; the straightening pressing wheel is driven by the lead screw sleeve to be close to or away from the auxiliary wheel. And a lifting device for controlling the straightening pressing wheel to lift is arranged at the bottom of the straightening pressing wheel. Displacement control of the straightening pressing wheels in two vertical directions is achieved, so that the correcting device can be suitable for correcting a sickle bend and a tile bend at the same time, and adjustment can be conducted according to actual requirements. When external force is applied for straightening, the springs can play a buffering role, a part of energy is absorbed and dissipated, and the impact of the external force on the cutting die steel is reduced. The defects such as indentations and scratches on the surface of the cutting die steel or cracks in the cutting die steel caused by excessively large external force applied instantly can be prevented, and therefore the quality and performance of the cutting die steel are protected.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting steel, and in particular to a die-cutting steel correction device. Background Technology

[0002] Die-making steel is a special type of steel used to manufacture various cutting tools and molds. It possesses high hardness, high strength, high wear resistance, and good toughness. During the rolling process of die-making steel, if the installation accuracy of the rolls is insufficient, such as deviations in the parallelism between the rolls or uneven wear, the steel will be subjected to uneven rolling forces in the rolling direction. This uneven force will cause the steel to elongate more on one side than the other along its length, causing the steel to gradually bend towards the side with greater elongation, forming a sickle bend. Additionally, if the steel is heated unevenly during the heating process, the side with higher temperature has better plasticity and is more prone to elongation under the rolling force, which can also lead to a sickle bend.

[0003] During the quenching and cooling process of die steel, the uneven cooling rates between the surface and interior of the steel generate significant thermal stress. When this thermal stress exceeds the steel's yield strength, uneven deformation occurs. If this deformation is uneven along the width of the steel, it can easily lead to warping. For example, the cooling rate at the edges of the steel may be faster than at the center, resulting in greater shrinkage at the edges and causing the steel to exhibit a warped shape with a raised or recessed center along its width. Furthermore, improper forging processes, such as excessive forging ratios or uneven forging temperatures, can also cause uneven internal structure in the steel, leading to warping during subsequent processing.

[0004] In existing technologies, specialized straightening machines are used to apply mechanical pressure to bent die steel. These machines typically have multiple pressure heads, whose positions and pressures can be adjusted according to the steel's curvature, repeatedly applying pressure and adjusting the steel to gradually restore it to a straight state. However, existing straightening devices usually only straighten camber or concave bends individually; the two types of equipment are not interchangeable. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a die steel correction device.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A die-cutting steel straightening device includes a motor for driving a lead screw to rotate; a lead screw sleeve is fitted on the lead screw; a straightening pressure roller is connected to the lead screw sleeve; an auxiliary roller is provided on the opposite side of the straightening pressure roller; the straightening pressure roller moves closer to or further away from the auxiliary roller under the drive of the lead screw sleeve; and a lifting device is provided at the bottom of the straightening pressure roller to control its lifting and lowering.

[0008] Furthermore, the motor is a servo motor; the servo motor is fixed on a motor mounting base; the output shaft of the servo motor is connected to a lead screw via a coupling.

[0009] Furthermore, the lead screw sleeve is fixedly connected to the fixed block; a straightening connecting plate is connected to the bottom of the fixed block; the straightening connecting plate is connected to the linear guide rail via a slider; the linear guide rail is fixedly mounted on the base; and the base also has a limit switch for detecting the movement position of the lead screw sleeve.

[0010] Furthermore, the lead screw is fitted with a spring; one end of the spring is connected to a fixed block, and the other end is connected to the pressure roller base of the straightening pressure roller; the pressure roller base is equipped with a lifting device.

[0011] Furthermore, a straightening bearing seat is fixedly connected to the base; the straightening bearing seat is connected to the lead screw through a bearing.

[0012] Furthermore, a top pad block is fixedly connected to the pressure roller base; a rear spring seat is fixedly provided on the top pad block; the rear spring seat is connected to the spring; and the fixing block is connected to the spring through the front spring seat.

[0013] Furthermore, the pressure roller base is slidably connected inside the straightening base; the auxiliary wheel is disposed at one end of the straightening base; and a motor for driving its rotation is connected to the auxiliary wheel.

[0014] Furthermore, a pull-back seat is connected to the fixing block; the pull-back seat is connected to the top pad block via a pull-back rod; and nuts for limiting the position are provided at both ends of the pull-back rod.

[0015] Furthermore, the motor is connected to the central shaft of the auxiliary wheel via a worm gear reducer.

[0016] Furthermore, the worm gear reducer is mounted on the bracket; a first sprocket is connected to the central shaft of the auxiliary wheel; a straightening and clamping device is provided on the bracket; the straightening and clamping device includes a cylinder; the lead screw is mounted on a cylinder fixing plate on the top of the bracket; the movable end of the cylinder's cylinder top screw is connected to a cylinder pressure plate; a movable wheel is connected to the cylinder pressure plate; a second auxiliary wheel is provided on the opposite side of the movable wheel; a second sprocket is connected to the central shaft of the second auxiliary wheel; the first sprocket is connected to the second sprocket via a chain.

[0017] Furthermore, the bracket has a sealing plate on its side; and an upper protective cover is provided on the top of the bracket.

[0018] The beneficial effects of this invention are as follows: By controlling the displacement of the straightening pressure roller in two vertical directions, the correction device can be applied to correct both sickle and conical bends simultaneously, and can be adjusted according to actual needs. A spring acts on the straightening pressure roller, pushing it to linear displacement. During the straightening process of the die steel, when external force is applied, the spring acts as a buffer, absorbing and dissipating some energy, reducing the impact of the external force on the die steel. This helps prevent defects such as indentations, scratches, or internal cracks on the surface of the die steel caused by excessive instantaneous external force, thus protecting the quality and performance of the die steel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an exploded view of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural view of the present invention;

[0022] Figure 3 This is a reference diagram showing the structure of this utility model in use;

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Motor; 110. Motor mounting bracket; 120. Coupling; 200. Lead screw; 210. Front spring seat; 220. Spring; 300. Lead screw sleeve; 310. Fixing block; 320. Straightening connecting plate; 330. Slider; 340. Linear guide rail; 350. Base; 360. Straightening bearing seat; 370. Bearing; 380. Limit switch; 390. Pull-out seat; 391. Pull-out rod; 392. Nut; 400. Straightening pressure roller; 4 10. Pressure roller base; 420. Top pad block; 421. Rear spring seat; 430. Straightening base; 500. Auxiliary wheel; 510. Motor; 520. Worm gear reducer; 530. First sprocket; 600. Bracket; 610. Cylinder; 611. Cylinder fixing plate; 612. Cylinder set screw; 613. Cylinder pressure plate; 620. Straightening clamping device; 630. Second auxiliary wheel; 640. Second sprocket; 650. Sealing plate; 660. Upper protective cover. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model and 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Examples, such as Figures 1-3 As shown:

[0029] A die-cutting steel straightening device includes a motor 100; the motor 100 is typically a servo motor, which has better control precision; the servo motor is fixed on a motor mounting base 110; the output shaft of the servo motor is connected to a lead screw 200 via a coupling 120, thereby driving the lead screw 200 to rotate.

[0030] In one embodiment, a lead screw sleeve 300 is fitted onto the lead screw 200; when the lead screw 200 rotates, the lead screw sleeve 300 can move linearly along its axial direction on the lead screw 200; in one embodiment, the lead screw 200 can be a ball screw; the lead screw sleeve 300 is a ball nut 392; the lead screw sleeve 300 is connected to the straightening pressure roller 400, thereby controlling the position of the straightening pressure roller 400 relative to the auxiliary roller 500, so that the straightening pressure roller 400 can move closer to or further away from the auxiliary roller 500, thereby clamping the die steel to complete the correction of sickle bend or tile bend; the bottom of the straightening pressure roller 400 is provided with a lifting device to control its lifting and lowering; the lifting device can be implemented using a cylinder 610 drive scheme or a lead screw 200 drive scheme commonly used in the art, and its specific structure will not be described here; by achieving displacement control of the straightening pressure roller 400 in two vertical directions, the correction device of this utility model can be applied to the correction of sickle bend and tile bend simultaneously, and can be adjusted according to actual needs.

[0031] In one embodiment, the lead screw sleeve 300 is fixedly connected to the fixing block 310; the base 350 of the fixing block 310 is connected to a straightening connecting plate 320; the straightening connecting plate 320 is connected to the linear guide rail 340 via a slider 330; the guide rail structure guides the movement of the lead screw sleeve 300, effectively improving the stability of linear movement; since a large load needs to be applied when correcting sickle bends or corrugations, the directionality of the load application can be ensured by the limiting and guiding of the guide rail; the linear guide rail 340 is fixedly mounted on the base 350; the base 350 also has a limit switch 380 for detecting the movement position of the lead screw sleeve 300;

[0032] In one embodiment, a spring 220 is sleeved on the lead screw 200; the spring 220 connects the lead screw sleeve 300 and the straightening pressure roller 400; the spring 220 is located on the side near the straightening pressure roller 400; one end of the spring 220 is connected to the fixing block 310, and the other end is connected to the pressure roller base 410 of the straightening pressure roller 400; the lifting device is located inside the pressure roller base 410; in this embodiment, the spring 220 acts on the straightening pressure roller 400, thereby pushing the straightening pressure roller 400 to move linearly. During the straightening process of the die-cutting steel, when an external force is applied for straightening, the spring 220 can play a buffering role, absorbing and dissipating some energy, and reducing the impact of the external force on the die-cutting steel. This helps to prevent defects such as indentations, scratches, or internal cracks from appearing on the surface of the die-cutting steel due to excessive external force applied instantaneously, thereby protecting the quality and performance of the die-cutting steel. Because the spring 220 is sleeved outside the lead screw 200 and has a relatively large size, it has a large contact area with the pressure roller base 410, which facilitates the uniform application of force. During the processing and use of the die steel, minor deformations may occur due to various reasons. The load applied by the spring 220 can compensate for these deformations to a certain extent, ensuring that the die steel remains under force during straightening and improving the straightening effect. Since the spring 220 can buffer external forces and apply force evenly, it reduces wear and damage to the equipment caused by excessive rigid impact forces during straightening. This helps extend the service life of the straightening equipment and reduce maintenance and replacement costs.

[0033] In one embodiment, a straightening bearing seat 360 is fixedly connected to the base 350; the straightening bearing seat 360 is connected to the lead screw 200 via a bearing 370; in one embodiment, two bearings 370 are provided. By providing the straightening bearing seat 360 to support the lead screw 200, the deformation of the lead screw 200 is reduced.

[0034] In one embodiment, a top pad block 420 is fixedly connected to the pressure roller base 410; a rear spring seat 421 is fixedly provided on the top pad block 420; the rear spring seat 421 is connected to the spring 220; and the fixing block 310 is connected to the spring 220 through the front spring seat 210.

[0035] In one embodiment, a pull-back seat 390 is connected to the fixing block 310; the pull-back seat 390 is connected to the top pad block 420 via a pull-back rod 391; and nuts 392 for limiting the position are provided at both ends of the pull-back rod 391. The pull rod 391 is mainly used to apply force to the top pad 420 to drive the movement of the pressure roller base 410 when the lead screw sleeve 300 moves to the right, that is, when the straightening pressure roller 400 moves away from the auxiliary roller 500; to avoid the spring 220 bearing tensile force, it can improve the connection stability between the spring 220 and the spring seat; the nuts 392 are all set on the outside of the top pad 420 and the pull rod base 390. When the straightening pressure roller 400 moves away from the auxiliary roller 500, the nuts 392 play a limiting role. When the straightening pressure roller 400 moves closer to the auxiliary roller 500, the pull rod 391 can slide relative to the top pad 420 and the pull rod base 390; in one embodiment, one end of the pull rod 391 can be fixedly connected to the top pad 420 or the pull rod base 390;

[0036] In one embodiment, the pressure roller base 410 is slidably connected within the straightening base 430; the auxiliary wheel 500 is disposed at one end of the straightening base 430; and a motor 510 for driving the rotation of the auxiliary wheel 500 is connected to the auxiliary wheel 500.

[0037] In one embodiment, the motor 510 is connected to the central shaft of the auxiliary wheel 500 via a worm gear reducer 520; the worm gear reducer 520 is mounted on the bracket 600; a first sprocket 530 is connected to the central shaft of the auxiliary wheel 500; a straightening and clamping device 620 is provided on the bracket 600; the straightening and clamping device 620 includes a cylinder 610; a lead screw 200 is mounted on a cylinder fixing plate 611 at the top of the bracket 600; the movable end of the cylinder push screw 612 of the cylinder 610 is connected to a cylinder pressure plate 613; a movable wheel is connected to the cylinder pressure plate 613; a second auxiliary wheel 630 is provided on the opposite side of the movable wheel; a second sprocket 640 is connected to the central shaft of the second auxiliary wheel 630; the first sprocket 530 is connected to the second sprocket 640 via a chain; when the motor 510 rotates, it can simultaneously drive the auxiliary wheel 500 and the second auxiliary wheel 630 to rotate, thereby driving the movement of the die steel;

[0038] In one embodiment, the bracket 600 is provided with a sealing plate 650 on its side; the bracket 600 is provided with an upper protective cover 660 on its top.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A die-cutting steel straightening device, characterized in that: It includes a motor (100) for driving the lead screw (200) to rotate; a lead screw sleeve (300) is fitted on the lead screw (200); a straightening pressure roller (400) is connected to the lead screw sleeve (300); an auxiliary wheel (500) is provided on the opposite side of the straightening pressure roller (400); the straightening pressure roller (400) moves closer to or further away from the auxiliary wheel (500) under the drive of the lead screw sleeve (300); and a lifting device is provided at the bottom of the straightening pressure roller (400) to control its lifting and lowering.

2. The die-cutting steel straightening device according to claim 1, characterized in that: The motor (100) is a servo motor; the servo motor is fixed on the motor mounting base (110); the output shaft of the servo motor is connected to the lead screw (200) through a coupling (120).

3. The die-cutting steel straightening device according to claim 1, characterized in that: The lead screw sleeve (300) is fixedly connected to the fixing block (310); the bottom of the fixing block (310) is connected to a straightening connecting plate (320); the straightening connecting plate (320) is connected to the linear guide rail (340) through a slider (330); the linear guide rail (340) is fixedly mounted on the base (350); the base (350) also has a limit switch (380) for detecting the moving position of the lead screw sleeve (300).

4. The die-cutting steel straightening device according to claim 3, characterized in that: The lead screw (200) is fitted with a spring (220); one end of the spring (220) is connected to the fixing block (310), and the other end is connected to the pressure roller base (410) of the straightening pressure roller (400); the pressure roller base (410) is equipped with a lifting device.

5. The die-cutting steel straightening device according to claim 3, characterized in that: A straightening bearing seat (360) is fixedly connected to the base (350); the straightening bearing seat (360) is connected to the lead screw (200) through a bearing (370).

6. The die-cutting steel correction device according to claim 4, characterized in that: A top pad (420) is fixedly connected to the pressure roller base (410); a rear spring seat (421) is fixedly provided on the top pad (420); the rear spring seat (421) is connected to the spring (220); the fixing block (310) is connected to the spring (220) through the front spring seat (210).

7. The die steel straightening device according to claim 4, characterized in that: The pressure roller base (410) is slidably connected inside the straightening base (430); the auxiliary wheel (500) is set at one end of the straightening base (430); a motor (510) for driving the rotation of the auxiliary wheel (500) is connected to the auxiliary wheel (500); the motor (510) is connected to the central shaft of the auxiliary wheel (500) through a worm gear reducer (520).

8. A die-cutting steel correction device according to claim 6, characterized in that: The fixing block (310) is connected to a pull-back seat (390); the pull-back seat (390) is connected to the top pad block (420) through a pull-back rod (391); the two ends of the pull-back rod (391) are provided with nuts (392) for limiting the position.

9. A die-cutting steel straightening device according to claim 7, characterized in that: The worm gear reducer (520) is mounted on the bracket (600); a first sprocket (530) is connected to the central shaft of the auxiliary wheel (500); a straightening and clamping device (620) is provided on the bracket (600); the straightening and clamping device (620) includes a cylinder (610); the lead screw (200) is mounted on the cylinder fixing plate (611) at the top of the bracket (600); the movable end of the cylinder top screw (612) of the cylinder (610) is connected to the cylinder pressure plate (613); a movable wheel is connected to the cylinder pressure plate (613); a second auxiliary wheel (630) is provided on the opposite side of the movable wheel; a second sprocket (640) is connected to the central shaft of the second auxiliary wheel (630); the first sprocket (530) is connected to the second sprocket (640) through a chain.

10. A die-cutting steel straightening device according to claim 9, characterized in that: The bracket (600) is provided with a sealing plate (650) on its side; the bracket (600) is provided with an upper protective cover (660) on its top.

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