Edge cutting device for special steel single plate

Abstract

The utility model belongs to the field of special steel plate processing equipment. The utility model provides an edge cutting device for a special steel single plate, main body equipment of the edge cutting device is a circle shear, and other accessory equipment comprises a base, an inlet clamping and conveying device, a bearing device, an outlet clamping and conveying device and the like. The inlet clamping and conveying device and the bearing device are installed on the base, the left box body and the right box body of the circle shear are installed on a transverse moving mechanism of the base, and the left box body and the right box body can move left and right so as to cut edges of plates with different widths. The outlet pinch device is installed on box bodies of the circle shear, and the distance between outlet pinch rollers is adjusted along with opening and closing of the left box body and the right box body of the circle shear. According to the utility model, the pinch roll is additionally arranged at the outlet of the circle shear, so that the width of the supporting rubber ring at the shear blade of the circle shear can be reduced, the indentation generated by the pinch of the supporting rubber ring at the shear blade of the circle shear in the shearing process of a plate can be effectively avoided, and the sheared plate can stably and smoothly enter a subsequent conveying roller way.

Description

Technical Field

[0001] The utility model relates to the field of special steel plate processing equipment, in particular to a trimming device for a single special steel plate. Background Art

[0002] In order to obtain higher quality of plate edges and high-precision plate width dimensions, it is usually necessary to trim the plates. Circular shears are generally used to trim the plates. The actuators of the circular shears are mainly composed of a frame, a knife shaft, an eccentric sleeve, a knife disc, a pressure ring, a shear blade side clearance adjustment mechanism, an overlap adjustment mechanism, a transmission system, etc. During shearing, the trimming action is mainly completed by the simultaneous rotation of the upper and lower shear blades.

[0003] In order to ensure that the steel plate is straight and stable during shearing, the disc shear generally uses upper and lower fixed sleeves to clamp the steel plate, and multiple pairs of disc knives of the same size are staggered on the upper and lower transmission shafts, and elastic rubber ring pads are installed on the side corresponding to the disc knives. When the upper and lower disc knives rotate, they drive the steel plate into the cutting edge of the knife, and the steel plate is separated by the shearing action of the upper and lower blades. However, when the steel plate is trimmed, the elastic rubber ring pad installed on the side opposite to the disc knife will produce black indentations on the edge of the steel plate, which seriously affects the surface quality of the special steel plate and becomes a defective product.

[0004] Therefore, how to prevent the disc knife from producing black indentations during edge cutting has become a problem that needs to be solved urgently in the art. Utility Model Content

[0005] The main purpose of the utility model is to provide a trimming device for a single special steel plate.

[0006] According to one aspect of the utility model, there is provided a trimming device for a single special steel plate, comprising:

[0007] A base, wherein the base is provided with a transverse guide rail perpendicular to the conveying direction of the steel plate and a transverse movement mechanism capable of moving along the guide rail;

[0008] An inlet clamping and conveying device, which is installed on the base and provides traction force for the steel plate to convey the steel plate;

[0009] A supporting device, the supporting device is arranged at the outlet side of the inlet clamping device to support the steel plate;

[0010] A circular shear, wherein the circular shear comprises two pairs of working blade discs arranged on both sides of the supporting device and two boxes respectively used to support the two pairs of working blade discs, and at least one of the boxes is mounted on the transverse movement mechanism;

[0011] An outlet clamping and conveying device is arranged on the outlet side of the circular shear, and the outlet clamping and conveying device is installed on the box body and provides traction for the steel plate after edge trimming.

[0012] According to one embodiment of the utility model, the entrance pinching device includes at least one pair of pinching rollers arranged opposite to each other up and down and the pinching rollers are rotatably supported on the base; the supporting device includes two rows of columns fixedly mounted to the base and arranged at intervals, and the top of each row of columns is connected to a supporting beam, and a supporting roller is bridged between the supporting beams on both sides, and the upper surface of the supporting roller is lower than the position of the gap between the pinching rollers of the entrance pinching device.

[0013] According to an embodiment of the utility model, each pair of the working cutter discs comprises an upper working cutter disc and a lower working cutter disc, and the height of the upper surface of the lower working cutter disc is consistent with the height of the upper surface of the supporting roller.

[0014] According to an embodiment of the utility model, the outlet pinching device includes two pairs of pinching rollers aligned up and down near the edges on both sides of the width of the steel plate.

[0015] According to an embodiment of the utility model, two pairs of pinch rollers are respectively mounted on the boxes on both sides of the circular shear and move together with the lateral movement of the boxes.

[0016] According to an embodiment of the utility model, the distance between the two pairs of pinch rollers is smaller than the width of the steel plate after trimming so that the pinch rollers can clamp the edge of the steel plate.

[0017] According to an embodiment of the utility model, the height of the gap between each pair of the pinch rollers of the outlet pinching device is consistent with the height of the upper surface of the support roller.

[0018] According to an embodiment of the utility model, the device further comprises an edge crushing device, and the edge crushing device is located at the outlet side of the outlet clamping device.

[0019] According to an embodiment of the utility model, the edge scraping device includes two pairs of edge scraping shears located on both sides of the width direction of the steel plate. The two pairs of edge scraping shears are respectively installed on two boxes and the installation position is lower than the height of the clamping rollers of the outlet clamping device.

[0020] According to one embodiment of the utility model, the edge cutting device also includes two edge cutting guide grooves, each of the edge cutting guide grooves includes an upper guide plate and a lower guide plate, the first ends of the upper guide plate and the lower guide plate are close to the edge cutting position of the disc shear, the height of the upper guide plate is consistent with the height of the upper surface of the support roller, the height of the lower guide plate is consistent with the height of the lower surface of the support roller, the second ends of the upper guide plate and the lower guide plate extend to the vicinity of the edge cutting shear, and the height of the lower guide plate is consistent with the height of the overlapping position of the cutting blades of the edge cutting shear.

[0021] Due to the adoption of the above technical scheme, according to the utility model, the trimming device for a single special steel plate is additionally provided with an exit pinch roller to guide the plate into a subsequent conveying roller, instead of using an elastic rubber ring pad to guide the plate as in the prior art. This can reduce the width of the supporting rubber ring at the cutting blade of the disc shear, and effectively avoid the generation of black indentations on the edge of the disc shear due to the pressure of the rubber ring pad during the trimming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0023] Figure 1 The overall structural diagram of the disc shear device is shown;

[0024] Figure 2 A schematic diagram of a cutter disc portion of a disc shear according to the prior art is shown;

[0025] Figure 3 A side view of a trimming device for a single special steel plate according to an embodiment of the utility model is shown.

[0026] Description of Reference Numerals

[0027] D1, base; D2, sheet support structure; D3, shearing machine body; D4, adjustment device; D5, width adjustment device; D6, working blade; D7, driver;

[0028] 100, base; 200, inlet clamping and feeding device; 300, supporting device; 400, disc shear; 410, working knife disc; 500, outlet clamping and feeding device; 600, edge cutting device; 610, edge cutting chute; 620, edge cutting guide groove. DETAILED DESCRIPTION

[0029] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0030] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0031] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0032] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0033] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] Figure 1 The overall structural diagram of the circular shear device is shown. The circular shear device generally includes a base D1, a plate support structure D2, two shear bodies D3 symmetrically arranged on both sides of the plate support structure D2 and movably connected to the base D1, an adjustment device D4 for adjusting the overlap of the blade discs and the gap between the blade discs, a width adjustment device D5 for adjusting the width between the two shear bodies D3, a working blade disc D6 installed on the shear body D3, and a driver D7 for driving the adjustment device D4. The shear body D3 generally includes a frame, a working blade disc D6 drivably installed on the frame, and related driving and transmission mechanisms.

[0035] The adjustment of the overlap amount is completed by the unique structure of the disc shear shaft. The blade shaft adopts a cantilever design and is installed in the eccentric sleeve through two sets of bearings. The position of the shear blade shaft can be changed by rotating the eccentric sleeve using a motor connected to a transmission gear. Based on this principle, the upper and lower eccentric sleeves are driven to change the relative positions of the upper and lower shear blades, thereby achieving the purpose of adjusting the overlap amount. The adjustment of the lateral clearance is completed by the motor connected to the worm gear structure to drive the threaded outer sleeve to rotate. Since the threaded inner sleeve is fixed on the frame of the disc shear, the threaded outer sleeve makes both rotational motion and axial motion, thereby moving the eccentric sleeve and the blade shaft of the shear blade, changing the lateral clearance between the upper and lower shear blades, thereby achieving the purpose of adjusting the side clearance of the shear blade. The width adjustment control of the shear body is achieved by connecting the motor to the reducer to drive the disc shear frame to move on the base. A transverse movement mechanism realized by a lead screw and a nut structure is provided on the base. A locking device is also installed on the lead screw and nut device of the transverse movement mechanism to facilitate the fixation of the device, thereby stably shearing the plate and controlling the width of the plate.

[0036] Figure 2 The schematic diagram of the blade disc part of the disc shear according to the prior art is shown, wherein the left figure (a) is the main cross-sectional view of the blade disc part, and the right figure (b) is the side view of the blade disc part. The blade disc part includes an upper disc knife and a lower disc knife that are arranged relatively to each other. The upper disc knife and the lower disc knife are staggeredly installed on the upper and lower transmission shafts, respectively. An elastic rubber ring pad is installed on the side corresponding to the disc knife, and the elastic rubber ring pad guides the steel plate to be transported forward. When the upper and lower disc knives rotate, they drive the steel plate into the cutting edge of the tool, and the steel plate is separated by the shearing action of the upper and lower blades. However, when the steel plate is trimmed, the pressure of the elastic rubber ring pad installed on the side opposite to the disc knife will produce a black indentation on the edge of the steel plate, which seriously affects the surface quality of the special steel plate and becomes a defective product.

[0037] In order to solve the problem, the utility model provides a trimming device for a single special steel plate. Figure 3 The side view of a trimming device for a single special steel plate according to an embodiment of the utility model is shown. The device comprises a base 100, an inlet clamping device 200, a supporting device 300, a circular shear 400, and an outlet clamping device 500.

[0038] The base 100 is used to support other components. The base 100 has a horizontal beam and a vertical beam. The driving mechanism for driving the inlet clamping device 200, the disc shear 400, and the outlet clamping device 500 can be installed on the base 100. The base 100 is equipped with a transverse guide rail perpendicular to the conveying direction of the steel plate and a transverse movement mechanism that can move along the guide rail to change the transverse spacing between the two working blade discs 410 of the disc shear 400. The transverse movement mechanism can be specifically implemented in the form of a screw nut, that is, the motor drives the screw to rotate, and the rotation of the screw drives the nut installed thereon to translate transversely, and the disc shear 400 connected to the nut moves transversely with the nut to change the transverse spacing between the two working blade discs 410.

[0039] The entrance pinching device 200 is used to guide the steel plate into the circular shear 400. The entrance pinching device 200 is arranged on the entrance side of the circular shear 400, and includes at least one pair of pinching rollers arranged opposite to each other up and down. The at least one pair of pinching rollers rotate to provide a certain traction force for the steel plate to convey the steel plate, and the pinching rollers can be rotatably supported on the base 100. The pinching rollers have roller shafts, which are driven to rotate by a motor. The upper and lower pinching rollers rotate in opposite directions. The steel plate is clamped between the paired pinching rollers and moves backward under the rotation and traction of the pinching rollers. In one embodiment, the entrance pinching device 200 uses a pair of pinching rollers aligned up and down across the entire width of the steel plate. Optionally, in another embodiment, the entrance pinching device 200 uses two pairs of pinching rollers aligned up and down and arranged near the two side edges of the width of the steel plate.

[0040] The supporting device 300 is arranged at the exit side of the inlet clamping device 200, and is used to support the steel plate. The supporting device 300 includes two rows of columns fixedly mounted to the base 100 and arranged at intervals, and the top of each row of columns is connected to a supporting beam, and a number of supporting rollers are bridged between the supporting beams on both sides. The upper surface of the supporting roller is slightly lower than the position of the gap between the clamping rollers, for example, the height difference between the two can be about 5 cm. The number of supporting rollers can be determined according to the length of the steel plate to be trimmed. The supporting roller is rotatably mounted on the supporting beam via a bearing or a bearing seat. When the steel plate is conveyed backward, the supporting roller rotates driven by the steel plate, so that the steel plate can be supported while avoiding scratches or scratches on the steel plate.

[0041] The circular shear 400 includes two pairs of circular working blade discs 410 arranged on both sides of the supporting device 300 in the horizontal direction and two boxes for supporting the two working blade discs 410 respectively. The two pairs of circular working blade discs 410 are respectively installed on the boxes on both sides, and at least one box is installed on the transverse movement mechanism of the base 100. The height of the upper surface of the lower working blade disc 410 is consistent with the height of the upper surface of the supporting roller. The boxes on both sides can also be installed on the transverse movement mechanism to change the distance between the working blade discs 410 according to the width of the steel plate to be processed. In the up and down direction, the lower part of the upper working blade disc 410 slightly overlaps with the upper part of the lower working blade disc 410, and the overlap amount is determined according to the thickness of the plate to be cut. In the width direction of the plate (i.e., the direction perpendicular to the conveying direction of the steel plate), each pair of working blade discs 410 are staggered, and the side gap between the two is determined according to factors such as the strength and thickness of the steel plate. Regarding the setting of the overlap amount and the side gap, it is not an improvement point of the utility model, and can be determined by referring to the existing technology and experience, and will not be described in detail here. As above combined Figure 1 As described above, the working blade disc 410 is mounted on the blade shaft, which is cantilever-type and is mounted in an eccentric sleeve through two sets of bearings. The position of the shear blade shaft can be changed by rotating the eccentric sleeve using a motor connected to a transmission gear. A pair of blade shafts rotate in opposite directions under the drive of the motor, driving the working blade disc 410 to rotate and cut the edge of the steel plate.

[0042] The exit pinching device 500 is arranged at the exit side of the circular shear 400, and is used to guide the steel plate after trimming to be transferred to the subsequent conveying step. The exit pinching device 500 is installed on the box body and provides traction for the steel plate. Specifically, the exit pinching device 500 may include at least one pair of pinching rollers arranged opposite to each other up and down, and at least one pair of pinching rollers can be rotatably supported on the box body. The pinching roller has a roller shaft, and the roller shaft is driven by a motor to rotate. The upper and lower pinching rollers rotate in opposite directions. The steel plate is clamped between the pairs of pinching rollers and moves backward under the rotation and traction of the pinching rollers. Optionally, in one embodiment, the exit pinching device 500 uses two pairs of pinching rollers arranged in an upper and lower alignment near the two side edges of the steel plate width. The two pairs of pinching rollers are respectively installed on the box body for supporting the working blade 410 on both sides of the circular shear 400, and move together with the lateral movement of the box body. The distance between the pinching rollers on both sides is less than the width of the steel plate after trimming, so that the pinching rollers can clamp the edge of the steel plate. In this way, the distance between the pinch rollers of the outlet pinching device 500 can be adjusted while adjusting the distance between the working blade discs 410, without adjusting the outlet pinching device 500 separately, which makes the operation more convenient and efficient. By using the outlet pinching device 500 to guide the trimmed steel plate into the subsequent conveying roller, it is no longer necessary to rely on the rubber ring pad opposite to the working blade disc 410 to guide the steel plate, so that the rubber ring pad can be reduced or even removed, so that no black indentation will appear on the steel plate.

[0043] Optionally, in some embodiments, the edge trimming device for a single sheet of special steel further includes an edge shredding device 600, which is used to cut the waste edges cut from the steel plate into small segments for easy recycling. The edge shredding device 600 is located at the outlet side of the outlet clamping device 500. The edge shredding device 600 may include two pairs of edge shredding shears located on both sides of the steel plate, and the lateral position of each pair of edge shredding shears corresponds to the position of the cut waste edges. The installation height of the edge shredding shears is lower than the height of the outlet clamping rollers. Each edge shredding shear includes a shear body, the frame of the shear body adopts a welded structure, the upper and lower cutter disc shafts and the side clearance adjustment device are all installed on the frame, and the frame of the shear body can be connected to the box body on the corresponding side of the disc shear 400. The shear blade is mounted on the cutter disc, the upper cutter disc is mounted on the upper cutter disc shaft, and the lower cutter disc is mounted on the lower cutter disc shaft. All the cutter disc shafts are driven by the main motor to drive the reducer through the coupling, thereby realizing the rotary shearing action of the cutter disc. The cutter disc shafts are cantilevered, the connecting line of the upper cutter disc shaft and the lower cutter disc shaft is perpendicular to the conveying direction of the steel plate, and the shear blades of the upper cutter disc and the lower cutter disc are radially staggered and overlapped at the outer edges so as to achieve shearing during rotation. The edge crushing device 600 may also include an edge crushing chute 610, which is arranged at the outlet side of the edge crushing shear and is used to collect the steel segments after edge crushing into a collection basket for subsequent recycling.

[0044] Optionally, in some embodiments, the edge trimming device 600 may further include two edge trimming guide grooves 620, which are used to guide the scrap edges cut by the disc shear 400 to the entrance of the edge trimming shear. Each edge trimming guide groove 620 may include an upper guide plate and a lower guide plate, the first ends of which are close to the disc shearing edge, the height of the upper guide plate is consistent with the height of the upper surface of the support roller of the support device 300, and the height of the lower guide plate is consistent with the height of the lower surface of the support roller of the support device 300, so that the scrap edges cut off fall between the upper guide plate and the lower guide plate. The second ends of the upper guide plate and the lower guide plate extend to the vicinity of the edge trimming shear, and the height of the lower guide plate is consistent with the height of the overlapping position of the cutting blades of the edge trimming shear, so that the scrap edges cut off slide between the upper and lower cutter discs and are cut off.

[0045] According to the utility model, after the shearing blade opening and the upper and lower shearing blade side clearances of the disc shear are adjusted, the plate is fed into the disc shear by the front pinch roller of the disc shear for trimming, and then guided by the outlet pinch roller to the subsequent conveying roller to the next process. The waste edges sheared by the disc enter the scrap shear through the trimming guide groove for scrapping and recycling. The utility model can reduce the width of the supporting rubber ring at the disc shear blade by adding pinch rollers at the outlet of the disc shear, effectively avoid the indentation caused by the pinching of the disc shear blade supporting rubber ring during the shearing process, and enable the sheared plate to enter the subsequent conveying roller smoothly. The cut edge material can be cut into short materials of a certain length through the scrapping shear, and enter the collection basket through the scrapping chute for collection and regular treatment.

[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0048] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A trimming device for a single sheet of special steel, characterized in that: include: A base (100), wherein the base (100) is provided with a transverse guide rail perpendicular to the conveying direction of the steel plate and a transverse movement mechanism capable of moving along the guide rail; An inlet clamping and conveying device (200), the inlet clamping and conveying device (200) being mounted on the base (100) and providing traction force for the steel plate to convey the steel plate; A supporting device (300), the supporting device (300) being arranged at the outlet side of the inlet clamping device (200) to support the steel plate; A circular shear (400), the circular shear (400) comprising two pairs of working blade discs (410) arranged on both lateral sides of the supporting device (300) and two boxes respectively used to support the two pairs of working blade discs (410), at least one of the boxes being mounted on the transverse movement mechanism; An outlet clamping and conveying device (500) is arranged on the outlet side of the circular shear (400), and the outlet clamping and conveying device (500) is installed on the box body and provides traction for the steel plate after edge trimming.

2. The trimming device for a single special steel plate according to claim 1, characterized in that: The entrance pinching device (200) comprises at least one pair of pinching rollers arranged opposite to each other in an upper and lower direction and the pinching rollers are rotatably supported on the base (100); the supporting device (300) comprises two rows of columns fixedly mounted to the base (100) and arranged at intervals, the top of each row of columns is connected to a supporting beam, and a supporting roller is bridged between the supporting beams on both sides, and the upper surface of the supporting roller is lower than the position of the gap between the pinching rollers of the entrance pinching device (200).

3. The trimming device for a single special steel plate according to claim 2, characterized in that: Each pair of the working cutter discs (410) comprises an upper working cutter disc and a lower working cutter disc, and the height of the upper surface of the lower working cutter disc is consistent with the height of the upper surface of the supporting roller.

4. The trimming device for a single special steel plate according to claim 2, characterized in that: The outlet pinching device (500) comprises two pairs of pinching rollers arranged in an aligned manner up and down near the edges on both sides of the width of the steel plate.

5. The trimming device for a single special steel plate according to claim 4, characterized in that: The two pairs of pinch rollers are respectively mounted on boxes on both sides of the circular shear (400) and move together with the lateral movement of the boxes.

6. The trimming device for a single special steel plate according to claim 4, characterized in that: The distance between the two pairs of pinch rollers is smaller than the width of the steel plate after edge trimming so that the pinch rollers can clamp the edge of the steel plate.

7. The trimming device for a single special steel plate according to claim 6, characterized in that: The height of the gap between each pair of pinch rollers of the outlet pinching device (500) is consistent with the height of the upper surface of the support roller.

8. The trimming device for a single special steel plate according to claim 2, characterized in that: The device further comprises an edge crushing device (600), wherein the edge crushing device (600) is located at the outlet side of the outlet clamping device (500).

9. The trimming device for a single special steel plate according to claim 8, characterized in that: The edge scraping device (600) comprises two pairs of edge scraping shears located on both sides of the width direction of the steel plate, and the two pairs of edge scraping shears are respectively installed on two boxes and the installation positions are lower than the height of the pinch rollers of the outlet pinching device (500).

10. The trimming device for a single special steel plate according to claim 9, characterized in that: The edge trimming device (600) further comprises two edge trimming guide grooves (620), each of the edge trimming guide grooves (620) comprising an upper guide plate and a lower guide plate, the first ends of the upper guide plate and the lower guide plate being close to the edge trimming position of the disc shear (400), the height of the upper guide plate being consistent with the height of the upper surface of the support roller, the height of the lower guide plate being consistent with the height of the lower surface of the support roller, the second ends of the upper guide plate and the lower guide plate extending to the vicinity of the edge trimming shear, and the height of the lower guide plate being consistent with the height of the overlapping position of the edge trimming shear blades.

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