A grid plate shearing and leveling device

Abstract

The present invention discloses a grid plate shearing and leveling device, belonging to the technical field of sectional shearing after the forming of grid plates. It includes a grid plate, which comprises flat steel and upper strips. Multiple groups of the flat steel and upper strips are arranged in a grid-like distribution. The flat steel is welded to the upper strips, and the grid plate is in a curved shape; an upper flat knife, on which an upper positioning hole is opened, and a middle tooth knife and upper side teeth are opened at the bottom of the upper flat knife. Multiple groups of the upper side teeth are arranged on both sides of the middle tooth knife; a lower convex knife, the blade body of which is in an inverted V shape, a central groove is opened on the lower convex knife, the central groove is adapted to the middle tooth knife, lower side teeth are arranged on both sides of the central groove, multiple groups of the lower side teeth are located on both sides of the central groove; a lower tooth groove is opened between adjacent lower side teeth, and the flat steel is adapted to be placed in the lower tooth groove. The present invention solves the technical problem that the welded deformation of the grid plate in the prior art causes the sealing plate after shearing to fail to achieve a flat effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of post-forming segmentation shearing of grid plates, and particularly relates to a grid plate shearing and leveling device. Background Art

[0002] The grid plate is formed by arranging flat steel and steel bars in a proportion and welding them firmly to form a rectangular mesh plate. Normally, the top of the flat steel is welded to the steel bars, and the bottom weld points are on the side with flat steel. Due to the stress deformation of the weld points, the formed grid plate is bent into an arc along the direction of the round steel or steel bar. Therefore, it is not convenient for the subsequent sealing plate welding. Normally, it is required to level the grid plate before welding the sealing plates at both ends. Reference document CN102500877A, a welding method for a grid composite plate, mentions the above technical problems. Currently, it is urgent to realize the cutting of the grid plate on a shearing machine so that the bending deformation can be restored. Summary of the Invention

[0003] The technical problem solved by the present invention is to overcome the problem that the flatness of the sealing plate after shearing cannot be achieved due to the welding deformation of the grid plate in the prior art.

[0004] To solve the above technical problem, the inventor has obtained the technical solution of the present invention through practice and summary. The present invention discloses a grid plate shearing and leveling device, including a grid plate, the grid plate includes flat steel and upper bars, multiple groups of the upper bars and the flat steel are arranged in a grid pattern, the flat steel is welded to the upper bars, and the grid plate is in a bent shape;

[0005] An upper flat knife, on which an upper positioning hole is opened, and a middle tooth knife and upper side teeth are opened at the bottom of the upper flat knife, and multiple groups of the upper side teeth are distributed on both sides of the middle tooth knife;

[0006] A lower convex knife, the blade of the lower convex knife is in an inverted V shape, a central groove is opened on the lower convex knife, the central groove is adapted to the middle tooth knife, and lower side teeth are arranged on both sides of the central groove, and multiple groups of the lower side teeth are located on both sides of the central groove;

[0007] A lower tooth groove is opened between adjacent lower side teeth, and the flat steel is adapted to be placed in the lower tooth groove.

[0008] Specifically, an upper flat knife with a horizontal shape is arranged at the upper end, and a knife with an inverted V shape is arranged at the lower end. In this way, when the two knives shear in a staggered manner, due to the horizontal downward pressure of the upper flat knife, the bent grid plate will be stressed, and the middle part will be stressed first and the two ends will be stressed later, forming a state where the two ends are upturned, so as to restore the bending problem caused by welding. The upper bar can be a steel bar or a round steel, and during shearing, mainly the upper side teeth and the lower side teeth perform staggered shearing.

[0009] In a further technical solution, fixed supports are respectively installed on both sides of the lower convex cutter, and the fixed supports are fixedly connected to the lower convex cutter; the fixed supports are external force-bearing components suitable for stably fixing the lower convex cutter. Normally, the lower cutter on the shearing machine will not move, while the upper cutter realizes up-and-down staggered shearing.

[0010] A lower positioning hole is formed in the lower convex cutter, and a cutter fixing screw is suitable for being installed and fixed in the upper positioning hole and the lower positioning hole. The upper positioning hole is suitable for installing the upper flat cutter on the descending hydraulic cylinder at the top, and both groups of positioning holes are used to realize detachable connection.

[0011] In a further technical solution, both the middle tooth cutter and the upper side teeth are provided with cutting edges on both sides.

[0012] In a further technical solution, the included angle between the two side faces of the middle tooth cutter is 6° - 10°.

[0013] In a further technical solution, multiple groups of the upper side teeth are divided into left tooth shapes one and right tooth shapes one arranged at equal intervals. Upper tooth grooves are arranged on both the left tooth shape one and the right tooth shape one. The left tooth shape one and the right tooth shape one are symmetrical about the vertical center line of the middle tooth cutter. A working cutting edge one is formed on the side of the left tooth shape one facing away from the right tooth shape one and extends into the upper tooth groove.

[0014] In a further technical solution, the lower side teeth are divided into left tooth shapes two and right tooth shapes two arranged at equal intervals. The left tooth shape two and the right tooth shape two are symmetrical about the vertical center line of the central groove. A working cutting edge two is formed on the side of the left tooth shape two facing away from the right tooth shape two and extends into the lower tooth groove.

[0015] The way of setting the working cutting edge, firstly, can reduce the processing time of the cutter. It is not necessary to open the edge on all parts completely. Through normal staggered shearing, the edge is opened on the single contact side face and extends into the tooth groove. The main working surface is the up-and-down abutting and staggered cutting in the tooth groove. In this way, the cutting path meets the requirements of the present invention, and the unopened part is thickened to enhance the strength of the cutter.

[0016] In a further technical solution, the included angle between the working cutting edge one on the side face of the upper side teeth and the corresponding working cutting edge two on the side face of the lower side teeth is 3°.

[0017] In a further technical solution, the lower convex cutter includes a left blade body and a right blade body. A hinge is installed between the left blade body and the right blade body. Both ends of the hinge are detachably connected to the left blade body and the right blade body respectively, and the hinge is installed in the central groove;

[0018] The lower end of the hinge is provided with a mounting groove, and a wedge block is installed in the mounting groove. The wedge block is adapted to adjust the included angle between the left blade body and the right blade body.

[0019] In a further technical solution, symmetric ear portions are provided at the bottom of the wedge block. A first connecting hole is opened in the ear portion. A second connecting hole adapted to the first connecting hole is adapted to be opened in the mounting groove. A connecting bolt is installed between the first connecting hole and the second connecting hole.

[0020] Specifically, by providing a split lower convex blade, a wider range of grid plate models can be accommodated. Moreover, whether the grid plate is welded manually or by machine, it is impossible to make the heat deformation of the grid plate welding completely consistent. Therefore, the bending arcs of the heat-deformed grid plates are inconsistent, and the corresponding tooth groove positions need to be adjusted. The articulated tool can achieve angle adjustment. To ensure the bearing capacity of the tool, a wedge block is installed at the bottom to ensure the overall bearing strength.

[0021] Compared with the prior art, the present invention can achieve the following technical effects:

[0022] Compared with the prior art, the present invention has a horizontal upper flat blade at the upper end and an inverted V-shaped tool at the lower end. When the two tools are sheared out of alignment, due to the horizontal downward pressure of the upper flat blade, the bent grid plate will be stressed, and the middle will be stressed first and the two ends will be stressed later, forming a state where the two ends are warped to solve the bending problem caused by welding. The structure of the present invention is simple and does not require additional equipment to level the grid plate. Only the tool is improved, and it is a tool specifically for grid plates.

[0023] The way of setting the working edge of the present invention can not only reduce the processing time of the tool. It is not necessary to open the edge at all parts completely. During normal misaligned shearing, the edge is opened through the single contact surface and extends into the tooth groove. The main working surface is the upper and lower abutting misaligned cutting in the tooth groove, and the cutting path has the functions of simplicity and practicality.

[0024] The present invention can accommodate a wider range of grid plate models by providing a split lower convex blade. Because the bending arcs of the heat-deformed grid plates are inconsistent, the corresponding tooth groove positions need to be adjusted, and the articulated tool can achieve angle adjustment. To ensure the bearing capacity of the tool, a wedge block is installed at the bottom to ensure the overall bearing strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 Top view of the grid plate of the present invention;

[0027] Figure 2 Side view of the grid plate of the present invention;

[0028] Figure 3 Schematic diagram of the upper flat knife and the lower convex knife of Embodiment 1 of the present invention;

[0029] Figure 4 Station of the upper flat knife and the lower convex knife of the present invention Figure 1 ;

[0030] Figure 5 Station of the upper flat knife and the lower convex knife of the present invention Figure 2 ;

[0031] Figure 6 Schematic diagram of the staggered cutting of the upper flat knife and the lower convex knife of the present invention;

[0032] Figure 7 Station of the upper flat knife and the lower convex knife of the present invention Figure 3 ;

[0033] Figure 8 Schematic diagram of the upper flat knife and the lower convex knife of Embodiment 2 of the present invention;

[0034] Figure 9 is Figure 8 Enlarged view of part A;

[0035] Figure 10 Schematic diagram of the upper flat knife and the lower convex knife of Embodiment 3 of the present invention;

[0036] Figure 11 is Figure 10 Enlarged view of part B.

[0037] In the figure: 1, grid plate; 11, flat steel; 12, upper strip; 2, upper flat knife; 21, upper positioning hole; 22, middle tooth knife; 23, upper side tooth; 24, working edge one; 3, lower convex knife; 31, central groove; 32, lower side tooth; 33, fixed support; 34, working edge two; 35, left blade body; 36, right blade body; 37, hinge; 38, wedge block; 381, ear edge part; 382, connecting bolt; 39, lower positioning hole. Embodiment

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Embodiment 1

[0040] As Figures 1 to 7 shown, a grid plate shearing and leveling device of the present invention includes a grid plate 1, the grid plate 1 includes flat steel 11 and upper strips 12, multiple groups of the flat steel 11 and the upper strips 12 are arranged in a grid pattern, the flat steel 11 is welded to the upper strips 12, and the grid plate 1 is curved; the upper strips 12 can be one of steel strips or round steel.

[0041] An upper flat knife 2, on which an upper positioning hole 21 is opened, and a middle tooth knife 22 and upper side teeth 23 are opened at the bottom of the upper flat knife 2, and multiple groups of the upper side teeth 23 are arranged on both sides of the middle tooth knife 22;

[0042] A lower convex knife 3, the blade body of which is in an inverted V shape, a central groove 31 is opened on the lower convex knife 3, the central groove 31 is adapted to the middle tooth knife 22, and lower side teeth 32 are arranged on both sides of the central groove 31, and multiple groups of the lower side teeth 32 are located on both sides of the central groove 31;

[0043] A lower tooth groove is opened between adjacent lower side teeth 32, and the flat steel 11 is adapted to be placed in the lower tooth groove.

[0044] As Figure 3 shown, fixed supports 33 are respectively installed on both sides of the lower convex knife 3, and the fixed supports 33 are fixedly connected to the lower convex knife 3; a lower positioning hole 31 is opened on the lower convex knife 3, and a tool fixing screw is adapted to be installed and fixed in the upper positioning hole 21 and the lower positioning hole 39. The fixed supports 33 are used to apply an inward clamping force externally to achieve the fixing effect of the lower convex knife 3, so as to further strengthen the connection effect after the lower positioning hole 31 is provided.

[0045] Both the middle tooth knife 22 and the upper side teeth 23 are provided with cutting edges on both sides. The included angle between the two side surfaces of the middle tooth knife 22 is 6° - 10°. In Embodiment 1, it can be set that the middle tooth knife 22 and the upper side teeth 23 are both cutting-edge on both sides to achieve cutting.

[0046] The arc-shaped grid plate 1 conforms to the shape of the downward convex cutter 3, enabling the flat steel 11 of the grid plate 1 to be inserted into the lower tooth grooves of the downward convex cutter 3. When the upper flat cutter 2 shears downward, the tooth tips of the upper flat cutter 2 divert the flat steel 11 towards the cutting edge of the downward convex cutter 3, and then the flat steel is cut with displacement by the upper and lower cutting edges. During cutting, it is gradually sheared from the middle to both ends, and each tooth bears an even force. Since the welded grid plate 1 is arc-shaped, the middle of the downward convex cutter 3 is raised, basically conforming to the shape of the grid plate 11 after welding deformation. Since the grid plate 1 in the middle is cut first and the grid plates 1 at both ends are cut later, the grid plate 1 in the middle part is pressed down by the upper flat cutter 2 to be flush with both ends. During the shearing process, the round steel or steel bar follows the original arc and is pressed into a straight line. The length direction is squeezed, which can release a certain amount of internal stress, effectively flattening the originally curved grid plate 1 after shearing, making the cut flat grid plate 1 flat. Embodiment 2

[0047] As Figure 8 and Figure 9 shown, this is another set of implementation schemes of the present invention. On the basis of Embodiment 1, in order to reduce the machining area of the cutting edge, multiple groups of the upper side teeth 23 are divided into left tooth shapes one and right tooth shapes one arranged at equal intervals. Upper tooth grooves are provided on both the left tooth shape one and the right tooth shape one. The left tooth shape one and the right tooth shape one are symmetric with respect to the vertical center line of the middle tooth cutter 22. A working edge one 24 is provided on the side of the left tooth shape one facing away from the right tooth shape one and extends into the upper tooth groove. The lower side teeth 32 are divided into left tooth shapes two and right tooth shapes two arranged at equal intervals. The left tooth shape two and the right tooth shape two are symmetric with respect to the vertical center line of the central groove 31. A working edge two 34 is provided on the side of the left tooth shape two facing away from the right tooth shape two and extends into the lower tooth groove. As Figure 9 shown, the included angle between the working edge one 24 on the side of the upper side teeth 23 and the corresponding working edge two 34 on the side of the lower side teeth 32 is 3°. Embodiment 3

[0048] As Figure 10 and Figure 11As shown below, this is another set of implementation solutions of the present invention. On the basis of Embodiment 2, in order to achieve an adjustable multi-angle manner to realize the grid plate 1 with different bending degrees. The lower convex cutter 3 includes a left cutter body 35 and a right cutter body 36. A hinge 37 is installed between the left cutter body 35 and the right cutter body 36. The two ends of the hinge 37 are respectively detachably connected to the left cutter body 35 and the right cutter body 36. The hinge 37 is installed in the central groove 31. An installation groove is opened at the lower end of the hinge 37. A wedge block 38 is installed in the installation groove. The wedge block 38 is adapted to adjust the included angle between the left cutter body 35 and the right cutter body 36. Symmetrical ear parts 381 are provided at the bottom of the wedge block 38. A first connection hole is opened in the ear part 381. A second connection hole adapted to the first connection hole is preferably opened in the installation groove. A connection bolt 382 is installed between the first connection hole and the second connection hole.

[0049] Working principle: Insert the flat steel on the grid plate 1 into the lower tooth groove. Because the production of the grid plate 1 has certain specification requirements, relatively speaking, the number of tooth grooves is consistent with the number of flat steels 11. The lower convex cutter 3 and the upper flat cutter 2 are fixedly installed on the shearing equipment and correspond to each other. Then, as Figures 4 to 7 in the working state, the upper side teeth 23 are inserted into the lower tooth groove, and are gradually cut downward through the working edge, and then completely cut off at the bottom of the tooth groove. The upper flat cutter 2 and the lower convex cutter 3 are misaligned and face each other, as Figure 6 shown. When pressing down normally, both ends of the grid plate 1 are first pressed and both ends are warped, and then pressed and cut to be completely flattened.

[0050] Compared with Embodiment 3, it is necessary to correspondingly adjust the included angle between the left cutter body 35 and the right cutter body 36 of the lower convex cutter 3 for the grid plates 1 of the same batch processed and welded, and install the corresponding wedge block to realize the fixed connection of the lower convex cutter 3.

[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grid plate shearing and leveling device, characterized in that Comprising: A grid plate (1), the grid plate (1) includes flat steel (11) and upper strips (12), multiple groups of the flat steel (11) and the upper strips (12) are arranged in a grid pattern, the flat steel (11) is welded to the upper strips (12), and the grid plate (1) is curved; an upper flat knife (2), an upper positioning hole (21) is provided on the upper flat knife (2), a middle tooth knife (22) and upper side teeth (23) are provided at the bottom of the upper flat knife (2), and multiple groups of the upper side teeth (23) are arranged on both sides of the middle tooth knife (22); a lower convex knife (3), the blade body of the lower convex knife (3) is in an inverted V shape, a central groove (31) is provided on the lower convex knife (3), the central groove (31) is adapted to the middle tooth knife (22), lower side teeth (32) are provided on both sides of the central groove (31), multiple groups of the lower side teeth (32) are provided and located on both sides of the central groove (31); a lower tooth groove is provided between adjacent lower side teeth (32), and the flat steel (11) is adapted to be placed in the lower tooth groove.

2. The mesh plate shearing and leveling device according to claim 1, characterized in that: Fixed supports (33) are respectively installed on both sides of the lower convex knife (3), and the fixed supports (33) are fixedly connected to the lower convex knife (3); a lower positioning hole (39) is provided on the lower convex knife (3), and a tool fixing screw is adapted to be installed and fixed in the upper positioning hole (21) and the lower positioning hole (39).

3. The grid plate shearing and leveling device according to claim 2, characterized in that: Both the middle tooth knife (22) and the upper side teeth (23) have cutting edges provided on both sides.

4. The grid plate shearing and leveling device according to claim 3, characterized in that: The included angle between the two side surfaces of the middle tooth knife (22) is 6° - 10°.

5. The mesh plate shearing and leveling device according to claim 2, characterized in that: Multiple groups of the upper side teeth (23) are divided into a left tooth shape one and a right tooth shape one arranged at equal intervals, upper tooth grooves are provided on both the left tooth shape one and the right tooth shape one, the left tooth shape one and the right tooth shape one are symmetrical about the vertical center line of the middle tooth knife (22), and a working cutting edge one (24) is provided on the side of the left tooth shape one facing away from the right tooth shape one and extends into the upper tooth groove.

6. The grid plate shearing and leveling device according to claim 5, characterized in that: The lower side teeth (32) are divided into a left tooth shape two and a right tooth shape two arranged at equal intervals, the left tooth shape two and the right tooth shape two are symmetrical about the vertical center line of the central groove (31), and a working cutting edge two (34) is provided on the side of the left tooth shape two facing away from the right tooth shape two and extends into the lower tooth groove.

7. A grid plate shearing and leveling device according to claim 6, characterized in that: The included angle between the working cutting edge one (24) on the side surface of the upper side teeth (23) and the corresponding working cutting edge two (34) on the side surface of the lower side teeth (32) is 3°.

8. The grid plate shearing and leveling device according to claim 1, characterized in that: The lower convex knife (3) includes a left blade body (35) and a right blade body (36), a hinge (37) is installed between the left blade body (35) and the right blade body (36), both ends of the hinge (37) are detachably connected to the left blade body (35) and the right blade body (36) respectively, and the hinge (37) is installed in the central groove (31); an installation groove is provided at the lower end of the hinge (37), and a wedge block (38) is installed in the installation groove, and the wedge block (38) is adapted to adjust the included angle between the left blade body (35) and the right blade body (36).

9. A grid plate shearing and leveling device according to claim 8, characterized in that: The bottom of the wedge block (38) is provided with symmetrical ear parts (381), a first connecting hole is formed in the ear parts (381), a second connecting hole adapted to the first connecting hole is formed in the installation groove, and a connecting bolt (382) is installed between the first connecting hole and the second connecting hole.

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