Lower shearing tool apron for multi-tool gantry shear
By designing the structure of tilting the second blade and adjusting the blade gap in the lower shear holder of the multi-knife gantry shear, the problem of falling caused by the metal sheet being not easily cut off and the thickness of the metal sheet in the prior art is solved, and more accurate cut metal sheets.
Patent Information
- Application Number
- CN202421097489.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The lower shear holder of the existing multi-knife gantry shear is rectangular because the shear grooves are rectangular, resulting in the gap between the middle shear knife and the lower shear knife, which makes the metal sheet not easily completely cut off, and the thickness of the multi-layer metal sheet is different. , the pressure is not tight, causing the remaining metal sheet to fall to exceed the requirements.
A lower shearing knife base with multi-knife gantry shear is designed, including a base, shear groove, lower cutter, step and platform. The second blade tilt design makes the front width of the shear groove smaller than the rear side, and adjusts the blade Clearance for better shearing and flexible installation of the blades through bolted connections and threaded holes.
It effectively avoids the metal sheet falling, ensures that the metal sheets on both sides of the shear notch are completely cut off, adjusting the blade gap improves the shear effect, and ensuring the accuracy of the cutting size.
Smart Images
Figure CN222268862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gantry shears, in particular to a lower shearing tool seat for multi-blade gantry shears. Background Art
[0002] Gantry shears are used for shearing various metal plates and are ideal equipment for processing furnace materials in steel rolling mills, non-ferrous metal plants, and smelters. The structure of the prior art multi-blade gantry shears is shown in the patent application number 201911241510.7 entitled A Gantry Multi-stage Shearing Machine. The lower shearing knife seat is provided with a shearing groove, which is generally rectangular. The lower shearing knife is provided on the front side of the lower shearing knife seat and around the shearing groove. The upper shearing knife and the middle shearing knife on the lower side of the upper knife seat and the middle knife seat cooperate with the lower shearing knife to shear three small pieces of material at a time. In actual use, Figure 5 As shown, there is a certain gap between the projection 5 of the upper shearing knife and the middle shearing knife on the top surface of the lower shearing seat and the lower shearing knife. Since the shearing groove is rectangular, a small strip of metal sheet between the middle shearing knife and the lower shearing knife is not easily cut by the upper shearing knife. Moreover, since there are often multiple layers of metal sheets between the pressing seat and the lower shearing seat, each layer is also composed of multiple metal sheets, and the multiple metal sheets of the layer are often not equal in thickness direction, resulting in the thinner metal sheet not being pressed tightly. When the remaining part of the sheared metal sheet is small and not pressed tightly, when the upper knife seat continues to descend, the remaining part of the metal sheet is easily pulled out from under the pressing seat, and the part that should have been completely sheared falls down together, resulting in the falling metal sheet being larger and its size being larger than the required size. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a lower shearing knife seat for a multi-knife gantry shears in view of the above-mentioned technical deficiencies.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a lower shearing knife seat for a multi-blade gantry shear, comprising a base, a base is arranged below the base, a shearing groove is arranged on the base, a lower cutting knife is arranged on the front side of the base and around the shearing groove, a first blade is arranged on the front side of the base, second blades are arranged on both sides of the shearing groove, and a third blade is arranged on the rear side of the shearing groove. The first blade, the second blade and the third blade are connected end to end in sequence to form a lower cutting knife, the extension direction of the first blade and the third blade is perpendicular to the forward direction of the material, and the second blade is inclined outward in the direction from the front end to the rear end.
[0005] To further optimize the technical solution, a plurality of long holes are provided on the base, the extension direction of the long holes is parallel to the forward direction of the material, threaded holes are provided on the base at positions corresponding to the long holes, and the base and the base are connected by bolts.
[0006] To further optimize the technical solution, steps are provided on the front side of the base and around the shear groove, and the first blade, the second blade and the third blade are installed on the steps.
[0007] To further optimize the technical solution, the base is provided with platforms at positions on both sides of the shear groove, the platform and the top surface of the step are on the same plane, a plurality of threaded holes are provided on the platform, and also includes a panel, the panel is provided with a plurality of long holes extending in a direction perpendicular to the forward direction of the material, the panel is fixed to the platform by bolts; threaded holes are provided on the side wall of the step on the front side of the base, a plurality of long holes are provided on the first blade, and the first blade is fixed to the step by bolts.
[0008] Compared with the prior art, the utility model has the following advantages: 1. The second blade is inclined outward in the direction from the front end to the rear end, so that the width of the front side of the shearing groove is smaller than the width of the rear side, so that the protruding plates on both sides of the material shearing notch can be easily sheared off completely, and it is not easy for the size of the fallen metal sheet to exceed the requirement; 2. The gap between the lower shearing knife and the upper shearing knife and the middle shearing knife can be adjusted to achieve a better shearing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 The utility model is a structural schematic diagram of a lower shearing tool holder for a multi-tool gantry shear.
[0010] Figure 2 A schematic diagram of the structure of the base.
[0011] Figure 3 A schematic diagram of the platform structure.
[0012] Figure 4 This is a schematic diagram of the relationship between the material and the lower cutter during shearing.
[0013] Figure 5 It is a schematic diagram of the positional relationship between the projections of the upper shearing knife and the middle shearing knife on the top surface of the lower shearing seat and the lower shearing knife.
[0014] In the figure: 1, base; 11, shearing groove; 12, panel; 13, step; 14, platform; 2, lower cutter; 21, first blade; 22, second blade; 23, third blade; 3, base; 4, material; 41, protruding plate; 5, projection of the upper shearing knife and the middle shearing knife on the top surface of the lower shearing seat. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0016] Specific implementation method: Combination Figure 1-4 As shown, a lower shearing knife seat for a multi-blade gantry shear comprises a base 1, a base 3 is arranged below the base 1, a shearing groove 11 is arranged on the base 1, a blanking chute is arranged below the shearing groove 11 on the base 3, and the blanking chute gradually expands to both sides from top to bottom, wherein the expansion degree of the front side is greater than that of the rear side, a lower cutting knife 2 is arranged around the front side of the base 1 and the shearing groove 11, a first blade 21 is arranged on the front side of the base 1, second blades 22 are arranged on both sides of the shearing groove 11, and a third blade 23 is arranged on the rear side of the shearing groove 11, the first blade 21, the second blade 22 and the third blade 23 are connected end to end in sequence to form the lower cutting knife 2, the extension direction of the first blade 21 and the third blade 23 is perpendicular to the forward direction of the material 4, and the second blade 22 is inclined outward in the direction from the front end to the rear end, so that the width of the front side of the shearing groove 11 is smaller than the width of the rear side. When in use, combined with Figure 4 As shown, the protruding plates 41 on both sides of the shearing notch of the material 4 have their ends close to the base 1 located outside the shearing groove 11, so that the protruding plates 41 can be easily sheared off completely.
[0017] Furthermore, the base 1 is provided with a plurality of long holes, the extension direction of the long holes is parallel to the advancing direction of the material 4, the base 3 is provided with threaded holes at positions corresponding to the long holes, and the base 1 and the base 3 are connected by bolts, so that during shearing, the gap between the first blade 21 and the upper shearing knife can be adjusted according to actual conditions.
[0018] Specifically, a step 13 is provided on the front side of the base 1 and around the shearing groove 11 , and the first blade 21 , the second blade 22 and the third blade 23 are installed on the step 13 .
[0019] Furthermore, the base 1 is provided with platforms 14 at positions on both sides of the shearing groove 11, the platform 14 and the top surface of the step 13 are on the same plane, the platform 14 is provided with a plurality of threaded holes, and also includes a panel 12, the panel 12 is provided with a plurality of long holes extending in a direction perpendicular to the forward direction of the material 4, the panel 12 is fixed to the platform 14 by bolts, the rear end of the second blade 22 is located in front of the third blade 23, and during shearing, the gap between the second blade 22 and the middle shearing knife can be adjusted according to actual conditions. The side wall of the step 13 on the front side of the base 1 is provided with threaded holes, the first blade 21 is provided with a plurality of long holes, the first blade 21 is fixed to the step 13 by bolts, and after adjusting the position of the second blade 22, the position of the first blade 21 can be adjusted to make it contact with the second blade 22.
[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A lower shearing blade holder for a multi-blade gantry shear, comprising a base (1), a base (3) being arranged below the base (1), a shearing groove (11) being arranged on the base (1), and a lower cutting blade (2) being arranged on the front side of the base (1) and around the shearing groove (11), characterized in that: A first blade (21) is arranged on the front side of the base (1), second blades (22) are arranged on both sides of the shearing groove (11), and a third blade (23) is arranged on the rear side of the shearing groove (11); the first blade (21), the second blade (22) and the third blade (23) are connected end to end in sequence to form a lower cutting blade (2); the extension direction of the first blade (21) and the third blade (23) is perpendicular to the advancing direction of the material (4), and the second blade (22) is inclined outward in a direction from the front end to the rear end.
2. The lower shearing tool holder for multi-blade gantry shears according to claim 1, characterized in that: The base (1) is provided with a plurality of long holes, the extension direction of the long holes being parallel to the advancing direction of the material (4), the base (3) is provided with threaded holes at positions corresponding to the long holes, and the base (1) and the base (3) are connected by bolts.
3. A lower shearing tool holder for a multi-blade gantry shear according to any one of claims 1-2, characterized in that: A step (13) is provided on the front side of the base (1) and around the shearing groove (11), and the first blade (21), the second blade (22) and the third blade (23) are installed on the step (13).
4. The lower shearing tool holder for a multi-blade gantry shear according to claim 3, characterized in that: The base (1) is provided with platforms (14) at positions on both sides of the shear groove (11); the platform (14) and the top surface of the step (13) are on the same plane; a plurality of threaded holes are provided on the platform (14); and the base (1) further comprises a panel (12); a plurality of long holes extending in a direction perpendicular to the forward direction of the material (4) are provided on the panel (12); the panel (12) is fixed to the platform (14) by bolts; a threaded hole is provided on the side wall of the step (13) on the front side of the base (1); a plurality of long holes are provided on the first blade (21); and the first blade (21) is fixed to the step (13) by bolts.