Multi-station straight knife grinding machine

Abstract

The utility model discloses a multi-station straight knife grinding machine which comprises a knife grinding machine frame, a grinding head assembly and a working table, the working table is rotatably supported on the knife grinding machine frame below a grinding wheel on the grinding head assembly, an electromagnetic chuck used for adsorbing a ground straight knife blade is arranged on the working table, and a second working table top is arranged on the working table. The second working table top is located on the side face, different from the side where the electromagnetic chuck is located, of the working table, a straight knife pressing plate is further arranged on the working table, the pressing end of the straight knife pressing plate is driven by a pressing plate driving device to press the second working table top, a straight knife positioning piece is further arranged on the working table, and the positioning side of the straight knife positioning piece is adjacent to the second working table top. And the straight knife positioning piece can position at least one ground straight blade. By adopting the multi-station straight knife grinding machine, not only can the grinding of multiple side surfaces of a conventional flaky straight knife be completed, but also the grinding of an inclined surface of a cutting edge of the flaky straight knife such as a slicing knife can be realized, and the processing efficiency can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of machining equipment, more particularly to a kind of grinding equipment of sheet straight knife. BACKGROUND

[0002] Sheet straight knife is usually a cutting knife, and its side surface is fixed on cutting machine. The knife body is rectangular strip, and the cutting edge of sheet straight knife is located on one long side of rectangular strip. The cutting edge is formed by the intersection of side surface and blade bevel. The manufacturing of this kind of sheet straight knife is carried out by straight knife grinder. The sheet straight knife to be ground is adsorbed on the electromagnetic chuck of the worktable of straight knife grinder. The cutting edge of sheet straight knife is located in parallel with the length direction of grinding frame by blade positioning device. The blade bevel of sheet straight knife is in horizontal state by rotating the worktable for a certain angle. The grinding head assembly above the worktable can grind sheet straight knife. The upper and lower side surfaces of sheet straight knife can also be ground by this grinder. The working surface of electromagnetic chuck of worktable is in horizontal state at this time.

[0003] In addition to the common use for cutting, sheet straight knife is also used for planing cutter installed on rotary cutter head. The shape of planing cutter is similar to the common cutting knife. The cutting edges of several planing cutters evenly distributed along the outer periphery of rotary cutter head should be located on the same circumferential surface, and the axis of the circumferential surface is located on the axis of rotary cutter head. In order to facilitate the installation of planing cutter on rotary cutter head, the outer periphery of rotary cutter head is provided with planing cutter embedding groove. The relative position between the groove bottom of each planing cutter embedding groove and the axis of rotary cutter head is consistent. The installation of planing cutter is completed by fitting the back of planing cutter opposite to cutting edge to the groove bottom of planing cutter embedding groove. This requires that the distance between cutting edge and back of each planing cutter is equal. Therefore, the back of planing cutter must be used as positioning reference in the manufacturing and regrinding process of sheet straight knife such as planing cutter. The conventional sheet straight knife grinding machine cannot guarantee the consistency of the distance between cutting edge and back of each planing cutter, which brings great inconvenience to the installation and adjustment of planing cutter on rotary cutter head. Moreover, the electromagnetic chuck can only adsorb one blade at a time, and the production efficiency is low. SUMMARY

[0004] In view of the above-mentioned deficiencies of prior art, the technical problem to be solved by the utility model is to provide a multi-station straight knife grinder. It can not only grind the multiple side surfaces of conventional sheet straight knife, but also grind the blade bevel of planing cutter type sheet straight knife, and can greatly improve the processing efficiency.

[0005] In order to solve the above technical problems, the utility model discloses a multi -station straight knife grinding machine, including grinding machine frame, grinding head subassembly, workstation, workstation rotatable support is in the grinding head subassembly below the grinding wheel the grinding machine frame, be equipped with the electromagnetic chuck for adsorbing the straight blade of being ground on the workstation, be equipped with the second workstation surface on the workstation, and the second workstation surface is located the side of the workstation with the side of the electromagnetic chuck, still be equipped with straight knife pressure plate on the workstation, and the straight knife pressure plate's pressure end is driven to the second workstation surface by the pressure plate drive arrangement, still be equipped with straight knife positioning member on the workstation, and the positioning side of straight knife positioning member is adjacent to the second workstation surface, straight knife positioning member can position at least one straight blade of being ground.

[0006] After adopting the above technical scheme, the straight knife grinding machine can install and fix the straight blade of being ground of the conventional cutting and cutting by the electromagnetic chuck on the workstation, and the upper and lower sides of the straight blade of being ground are ground when the working surface of the electromagnetic chuck is in the horizontal state, or the blade bevel of the straight blade of being ground adsorbed on the electromagnetic chuck is in the horizontal state by rotating the workstation to grind the blade bevel, the straight blade of being ground can also be clamped and fixed by the second workstation surface through the straight knife pressure plate, and multiple straight blades of being ground can be fixed and installed in overlap, the installation position of the multiple straight blades of being ground installed in overlap is determined by the straight knife positioning member arranged on the workstation, so that the blade bevel of each straight blade of being ground is on the same plane, the blade bevel on the same plane is in the horizontal position by rotating the workstation, so that the grinding head subassembly can grind the blade bevel of each straight blade of being ground at the same time, and the processing efficiency is obviously greatly improved compared with the conventional electromagnetic chuck that can only adsorb one straight blade of being ground. In this way, the straight knife grinding machine not only can use the electromagnetic chuck to adsorb the straight blade of being ground to complete the grinding of multiple sides of the conventional sheet straight knife, but also can use the second workstation surface to install multiple straight blades of being ground in overlap, and use the straight knife positioning member to position the back surface of each straight blade of being ground of the planing cutter, ensure the consistency of the cutting edge and the distance from the back surface, and use the straight knife pressure plate to clamp and fix each straight blade of being ground installed in overlap, so that the grinding of the blade bevel of the sheet straight knife of the planing cutter is realized, and multiple straight blades of being ground can be processed at the same time, and the processing efficiency is greatly improved.

[0007] In an alternative embodiment of the utility model, the cross section of the workstation is rectangular, the electromagnetic chuck is located on one side of the rectangular workstation, and the second workstation surface is located on the side adjacent to the side where the electromagnetic chuck is located. By using this embodiment, the rectangular workstation is easy to manufacture, and the side where the second workstation surface is located is adjacent to the side where the electromagnetic chuck is located, which can meet the layout of the electromagnetic chuck and the second workstation surface, and facilitate the rotation of the workstation during use.

[0008] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0009] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0010] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0011] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0012] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0013] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0014] The utility model discloses a further preferred embodiment, a plurality of straight blade pressing plates are arranged along the length direction of the workbench. By this embodiment, one or more straight blade pressing plates can be selected to press the straight blade to be ground according to the length of the straight blade to be ground, ensuring reliable pressing and allowing multiple sets of straight blades to be ground to be installed along the length direction of the workbench.

[0015] The straight knife positioning piece is installed on the workbench through a positioning groove or a positioning tenon. With the embodiment, the installation and replacement of the straight knife positioning piece are facilitated, the adjustment time for replacing the straight knife positioning piece for the straight knife pieces of different sizes is reduced, and the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The multi-station straight knife grinding machine will be further described in detail below in combination with the drawings and specific embodiments.

[0017] Figure 1 is a structural schematic view of a specific embodiment of the multi-station straight knife grinding machine of the utility model;

[0018] Figure 2 is Figure 1 is an enlarged view of the structure of the workbench and its related components in the structure shown;

[0019] Figure 3 is Figure 2 is a structural schematic view of another working state of the work and its related components shown;

[0020] Figure 4 is Figure 3 is a top view.

[0021] In the figure: 1-grinding machine frame, 2-straight knife pressing plate, 3-pressing plate driving device, 4-straight knife positioning piece, 5-second workbench surface, 6-workbench, 7-electromagnetic chuck, 8-grinding wheel, 9-grinding head assembly, 10-straight knife supporting plate, 11-ground straight knife piece, 12-straight knife back positioning surface. DETAILED DESCRIPTION

[0022] In Figure 1 and Figure 2The multi-station straight blade grinder shown, the grinding head assembly 9 is movably arranged along the length direction of the grinding machine frame 1 through the bed body guide rails on the left and right sides above the grinding machine frame 1 and the tool feeding driving device, the rotating axis of the grinding wheel 8 on the grinding head assembly 9 is vertically arranged, the workbench 6 is installed on the grinding machine frame 1, the workbench 6 is rotatably arranged below the grinding wheel 8 on the grinding head assembly 9, the cross section of the workbench 6 is rectangular, the rotating axis thereof is parallel to the length direction thereof and parallel to the bed body guide rails on the grinding machine frame 1, the electromagnetic chuck 7 for adsorbing the straight blade 11 to be ground is arranged on the workbench 6, the electromagnetic chuck 7 is located on one side of the rectangular workbench 6, the second workbench surface 5 is arranged on the workbench 6, the second workbench surface 5 is located on the side of the workbench 6 different from the side where the electromagnetic chuck 7 is located, and the second workbench surface 5 is preferably located on the side of the workbench 6 adjacent to the side where the electromagnetic chuck 7 is located, so that the workbench 6 can have two work surfaces for clamping the straight blade 11 to be ground, forming two machining stations, and the workbench 6 is rotated to select one of the machining stations according to the object to be ground to perform corresponding grinding on the straight blade 11 to be ground. As a preferred embodiment, the straight blade supporting plate 10 is installed on the side of the workbench 6 where the second workbench surface 5 is located, and the upper side of the straight blade supporting plate 10 is the second workbench surface 5, and the lengths of the electromagnetic chuck 7 and the second workbench surface 5 correspond to the length of the workbench 6.

[0023] The straight blade pressing plate 2 is also arranged on the workbench 6, the pressing end of the straight blade pressing plate 2 is located above the second workbench surface, the rear end of the straight blade pressing plate 2 is supported on the workbench 6 through a supporting member, and the pressing end of the straight blade pressing plate 2 is driven by the pressing plate driving device 3 to press against the second workbench surface 5, as shown in Figure 4 The straight blade pressing plate 2 is also arranged on the workbench 6, the pressing end of the straight blade pressing plate 2 is located above the second workbench surface, the rear end of the straight blade pressing plate 2 is supported on the workbench 6 through a supporting member, and the pressing end of the straight blade pressing plate 2 is driven by the pressing plate driving device 3 to press against the second workbench surface 5, as shown in

[0024] The workbench 6 is further provided with a straight blade positioning member 4, the positioning side of which is adjacent to the second workbench surface 5, and the straight blade positioning member 4 can position at least one straight blade to be ground, see Figure 3 As a preferred embodiment, the positioning side of the straight blade positioning member 4 is provided with at least one straight blade back positioning surface 12, which is perpendicular to the second workbench surface 5. Further, the positioning side of the straight blade positioning member 4 is in a stepped shape, and the number of steps can be one to eight, and in the figure, five steps are shown. The number of the straight blades 11 to be ground which are overlapped and installed on the second workbench surface 5 can be less than or equal to the number of steps. The straight blade positioning member 4 with the stepped positioning side is installed on the workbench 6 through positioning grooves or positioning tenons. The vertical surface of each step of the stepped positioning side is the straight blade back positioning surface 12 which is in contact with the straight blade back surface to be ground. The spacing between the straight blade back positioning surfaces 12 of each step is equal, and the spacing value depends on the thickness of the straight blade 11 to be ground and the angle of the blade bevel, so as to ensure that the blade bevels of the overlapped straight blades 11 to be ground are in the same plane. The height of each step corresponds to the thickness of the straight blade 11 to be ground, so as to ensure that the straight blades 11 to be ground and the adjacent step below the straight blade positioning member 4 do not interfere with each other in installation. The straight blade positioning members 4 are installed at intervals along the length direction of the workbench 6, and each straight blade 11 to be ground is provided with at least one straight blade positioning member 4 in the length direction.

[0025] The above only lists some preferred embodiments of the present application, but the present application is not limited thereto, and many improvements and changes can be made. Any improvement and change made on the basis of the basic principles of the present application shall be considered to fall within the protection scope of the present application.

Claims

1. A multi-station straight knife grinder, comprising a knife sharpening frame (1), a grinding head assembly (9), and a workbench (6), wherein the workbench (6) is rotatably supported on the knife sharpening frame (1) below a grinding wheel (8) on the grinding head assembly (9), and an electromagnetic chuck (7) is provided on the workbench (6) for adsorbing a straight knife blade to be ground, characterized in that: A second work surface (5) is provided on the workbench (6), and the second work surface (5) is located on a side of the workbench (6) different from the side where the electromagnetic chuck (7) is located. A straight knife pressing plate (2) is also provided on the workbench (6), and the pressing end of the straight knife pressing plate (2) is driven by a pressing plate driving device (3) to press toward the second work surface (5). A straight knife positioning member (4) is also provided on the workbench (6), and the positioning side of the straight knife positioning member (4) is adjacent to the second work surface (5). The straight knife positioning member (4) can position at least one straight knife blade to be ground.

2. The multi-station straight knife grinder according to claim 1, characterized in that: The workbench (6) has a rectangular cross section, the electromagnetic suction cup (7) is located on one side of the rectangular workbench (6), and the second workbench surface (5) is located on a side of the workbench (6) adjacent to the side where the electromagnetic suction cup (7) is located.

3. The multi-station straight knife grinder according to claim 1 or 2, characterized in that: A straight knife support plate (10) is installed on the side of the workbench (6) where the second work surface (5) is located, and the upper side surface of the straight knife support plate (10) is the second work surface (5).

4. The multi-station straight knife grinder according to claim 1, characterized in that: A plurality of straight knife pressing plates (2) are arranged at intervals along the length direction of the workbench (6).

5. The multi-station straight knife grinder according to claim 4, characterized in that: Each straight knife pressing plate (2) is correspondingly provided with a pressing plate driving device (3).

6. The multi-station straight knife grinder according to claim 1 or 5, characterized in that: The pressing plate driving device (3) is a screw and nut pressing device.

7. The multi-station straight knife grinder according to claim 1, characterized in that: The pressure plate driving device (3) is a pneumatic cylinder or a hydraulic cylinder installed between the straight knife pressure plate (2) and the workbench (6).

8. The multi-station straight knife grinder according to claim 1, characterized in that: At least one straight knife back positioning surface (12) is provided on the positioning side of the straight knife positioning piece (4), and the straight knife back positioning surface (12) is perpendicular to the second work surface (5).

9. The multi-station straight knife grinder according to claim 1 or 8, characterized in that: The positioning side of the straight knife positioning member () is in a step shape, and the vertical surface at each step of the stepped positioning side is a straight knife back positioning surface (12) that contacts the back of the straight knife to be ground, and the distances between the straight knife back positioning surfaces (12) at each step are equal.

10. The multi-station straight knife grinder according to claim 9, characterized in that: The straight knife positioning member (4) is mounted on the workbench (6) via a positioning groove or a positioning tenon.

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