Table knife edge grinding machine with clamping assembly

Abstract

The utility model provides a table knife edge grinding machine with a clamping assembly. The table knife edge grinding machine comprises a base, a grinding plate is arranged at the upper end of the base, a plurality of grinding motors are fixed to the grinding plate, edge grinding wheels are fixed to the output ends of the grinding motors, a movable beam is arranged on the base in a sliding mode, and the clamping overturning assembly is fixed to the movable beam. The clamping and overturning assembly comprises an installation cylinder fixed to the moving beam, a clamping rod is rotatably arranged in the moving cylinder, and a first clamping jaw and a second clamping jaw which can slide are symmetrically arranged on the clamping rod. By arranging the slidable moving beam and the rotatable clamping rod, flexible adjustment of the position of the table knife blank is achieved, and the problem that in the prior art, the table knife blank needs to be turned over frequently or disassembled for multiple times to be fixed again is solved; the device has the advantages of improving the processing efficiency, ensuring the consistency of the processing precision, reducing manual operation errors and adapting to table knife blanks with different sizes and shapes.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutlery production field, concretely is a dinner knife edge grinding machine with clamping assembly. BACKGROUND

[0002] Stainless steel is made of iron chromium alloy and other trace elements, because of its excellent performance, is widely used in cutlery manufacturing field. With the continuous improvement of living standards, consumers' quality requirements of stainless steel tableware are also increasing. In the cutlery production process, edge grinding treatment is a key step for dinner knife blank, which directly affects the effect of subsequent processing and the quality of final product.

[0003] However, there are some significant defects in the dinner knife edge grinding equipment on the market. The existing edge grinding machine usually adopts fixed clamping device, once the dinner knife blank is fixed, it is difficult to adjust the position. This design leads to the fact that during the edge grinding process, the operator needs to frequently turn over the dinner knife blank or disassemble and re-fix the locking multiple times to ensure that each edge of the dinner knife can be evenly polished. This not only greatly reduces the processing efficiency, but also easily causes the problem of inconsistent processing accuracy. Due to the need to repeatedly adjust the position of the dinner knife blank, human operation error is easy to occur, leading to uneven edge grinding or excessive grinding. These problems directly affect the appearance quality and use performance of the dinner knife, and further reduce the yield of the product. In large-scale production, low yield means higher production cost and more resource waste. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiency that the position of the dinner knife blank needs to be repeatedly adjusted in the prior art, the utility model provides a dinner knife edge grinding machine with clamping assembly, which has the advantages of improving processing efficiency, ensuring consistent processing accuracy, reducing human operation error and adapting to different sizes and shapes of dinner knife blank.

[0005] The utility model adopts the following technical solutions.

[0006] A dinner knife edge grinding machine with clamping assembly, comprising a base, the upper end of the base is provided with a grinding plate, a plurality of grinding motors are fixed on the grinding plate, the output end of the grinding motor is fixed with an edge grinding wheel, a movable beam is slidably arranged on the base, and a clamping and overturning assembly is fixed on the movable beam; the clamping and overturning assembly comprises a mounting cylinder fixed on the movable beam, a clamping rod is rotatably arranged in the movable cylinder, and a first clamping claw and a second clamping claw are symmetrically arranged on the clamping rod.

[0007] The control member is movably arranged in the clamping rod along the axial direction, the first driving member and the second driving member are rotatably arranged on the two sides of the clamping rod, one end of the first driving member is hingedly connected with the control member, the other end of the first driving member is hingedly connected with the first clamping jaw, one end of the second driving member is hingedly connected with the control member, and the other end of the second driving member is hingedly connected with the second clamping jaw; when the control member moves away from the first clamping jaw and the second clamping jaw, the first driving member and the second driving member are driven to pull the first clamping jaw and the second clamping jaw to be close to each other respectively; when the control member moves close to the first clamping jaw and the second clamping jaw, the first driving block and the second driving block are driven to push the first locking mechanism and the second locking mechanism to be away from each other respectively.

[0008] Preferably, a lead screw motor is arranged in the clamping rod, the control member is threadedly connected with a lead screw of the lead screw motor, and the lead screw motor drives the control member to move.

[0009] Preferably, the side, where the first clamping jaw and the second clamping jaw are close to each other, is provided with an anti-skid rubber protrusion.

[0010] Preferably, a positioning gear is fixed to one end of the clamping rod away from the first clamping jaw, a side wall of the mounting cylinder is provided with a guide groove, and an external tooth ring engaged with the positioning gear is slidably arranged in the mounting cylinder through the guide groove.

[0011] Preferably, a spring is arranged in the guide groove, and the spring makes the external tooth ring always have a movement trend close to the positioning gear.

[0012] Preferably, a four-rib square hole is arranged on the positioning gear.

[0013] Preferably, a turnover motor is fixed to one side of the base, an output end of the turnover motor is fixedly connected with an unlocking member, the unlocking member comprises a rib block matched with the four-rib square hole and a pushing rod arranged around the rib block, and the length of the pushing rod is greater than that of the rib block.

[0014] The utility model discloses the beneficial effects are:

[0015] The utility model provides a knife sharpener with clamping assembly, including base, the upper end of base is provided with polishing plate, a plurality of polishing motor is fixed on the polishing plate, the output of polishing motor is fixed with the edge grinding wheel, the movable beam is slidably arranged on the base, the clamping turnover assembly is fixed on the movable beam, the clamping turnover assembly includes the installation cylinder of fixed movable beam, the clamping rod is rotatably arranged in the movable cylinder, the first clamping claw and the second clamping claw of symmetrical setting are slidably arranged on the clamping rod, through setting movable beam and rotatable clamping rod, the flexible adjustment of knife blank position is realized, the problem of frequently overturning knife blank or multiple disassembly re-fixing in prior art is solved, has the advantages such as improving processing efficiency, ensuring the consistency of processing accuracy, reducing artificial operation error, adapting to different size and shape knife blank. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, for those skilled in the art, without creating labor, according to these drawings, other drawings can also be obtained.

[0017] Fig. 1 It is the three-dimensional structure schematic diagram of an embodiment of the utility model;

[0018] Fig. 2 It is the structure schematic diagram of the engagement of the external tooth ring and the positioning gear in an embodiment of the utility model;

[0019] Fig. 3 It is the structure schematic diagram of the disengagement of the external tooth ring and the positioning gear in an embodiment of the utility model.

[0020] BRIEF DESCRIPTION OF DRAWINGS:

[0021] 1, base;11, polishing plate;12, polishing motor;13, edge grinding wheel;2, movable beam;31, installation cylinder;32, clamping rod;321, first clamping claw;322, second clamping claw;323, control piece;324, first driving part;325, second driving part;326, screw rod motor;327, antiskid rubber convex;33, positioning gear;331, four-rib square hole;34, guide groove;341, spring;35, external tooth ring;4, turnover motor;41, unlocking piece;411, convex rib block;412, push rod. DETAILED DESCRIPTION

[0022] The drawings are only for illustrative purposes, and cannot be understood as a limitation of the patent; in order to better illustrate the embodiment, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0023] It is understood by those skilled in the art that certain well-known structures and their descriptions can be omitted in the drawings. The technical solutions of the utility model will be further described below in combination with the drawings and examples.

[0024] As shown in the accompanying Figs. 1-3 A knife edge grinding machine with a clamping assembly, comprising a base 1, the upper end of the base 1 is provided with a grinding plate 11, a plurality of grinding motors 12 are fixed on the grinding plate 11, the output end of the grinding motor 12 is fixed with an edge grinding wheel 13, a movable beam 2 is slidably arranged on the base 1, and a clamping and overturning assembly is fixed on the movable beam 2; the clamping and overturning assembly comprises a mounting cylinder 31 fixed on the movable beam 2, a clamping rod 32 is rotatably arranged in the movable cylinder, and a first clamping jaw 321 and a second clamping jaw 322 are symmetrically arranged on the clamping rod 32.

[0025] The sliding design of the movable beam 2 makes the clamping assembly flexible on the base 1, so as to adjust the position of the knife. The clamping and overturning assembly is designed through the mounting cylinder 31 and the clamping rod 32, so that the clamping rod 32 can rotate in the mounting cylinder 31, and further adjust the angle of the knife. The symmetrical arrangement and the slidable design of the first clamping jaw 321 and the second clamping jaw 322 make the knife can be clamped stably, and when one side of the knife is polished, it can be overturned to the other side for continuous polishing, without re-clamping. The technical scheme of the present application avoids the cumbersome operation of multiple overturning or disassembling and re-fixing, reduces the processing time, improves the processing precision and the yield.

[0026] A control member 323 is arranged in the clamping rod 32 and can move along the axis direction of the clamping rod 32, first and second driving members 324 and 325 are rotatably arranged on both sides of the clamping rod 32, one end of the first driving member 324 is hinged to the control member 323, the other end of the first driving member 324 is hinged to the first clamping jaw 321, one end of the second driving member 325 is hinged to the control member 323, and the other end of the second driving member 325 is hinged to the second clamping jaw 322; when the control member 323 moves away from the first clamping jaw 321 and the second clamping jaw 322, the first driving member 324 and the second driving member 325 pull the first clamping jaw 321 and the second clamping jaw 322 to approach each other respectively; when the control member 323 moves towards the first clamping jaw 321 and the second clamping jaw 322, the first driving block and the second driving block push the first locking mechanism and the second locking mechanism away from each other respectively.

[0027] By controlling the axial direction movement of the control member 323, the first driving member 324 and the second driving member 325 are pulled or pushed to drive the first clamping jaw 321 and the second clamping jaw 322, so as to realize the automatic opening and closing of the clamping jaw, and further realize the clamping and releasing of the knife. The operation of clamping and releasing the knife is simplified, and the processing efficiency is improved. The movement of the control member 323 directly affects the position of the first clamping jaw 321 and the second clamping jaw 322, and through the transmission of the driving member, the accurate control of the first clamping jaw 321 and the second clamping jaw 322 is realized, and a stable clamping force is applied to the knife.

[0028] In some embodiments, a lead screw motor 326 is arranged in the clamping rod 32, the control member 323 is threadedly connected with the lead screw of the lead screw motor 326, and the lead screw motor 326 drives the control member 323 to move. Through the accurate control of the lead screw motor 326, the technical problems of inaccurate movement of the control member 323 and unstable clamping are solved, and the operation efficiency and clamping accuracy of the first clamping jaw 321 and the second clamping jaw 322 are improved. Specifically, the lead screw motor 326 can be fixed in the interior of the clamping rod 32, the lead screw is consistent with the axial direction of the clamping rod 32, when the lead screw motor 326 is started, the lead screw rotates to drive the control member 323 to move along the axial direction, so as to realize the accurate control of the clamping jaw. The lead screw motor 326 can adopt a stepping motor or a servo motor to have higher control accuracy and response speed.

[0029] In some embodiments, the side of the first clamping jaw 321 and the second clamping jaw 322 close to each other is provided with an anti-skid rubber protrusion 327. The anti-skid rubber protrusion 327 is a continuous arrangement of wave-shaped protrusions. The material of the anti-skid rubber protrusion 327 can be selected from rubber materials with high friction coefficient, such as nitrile rubber or silicone rubber, to ensure that the friction force can be effectively increased during clamping.

[0030] In some embodiments, the end of the clamping rod 32 away from the first clamping jaw 321 is fixed with a positioning gear 33, the sidewall of the mounting cylinder 31 is provided with a guide groove 34, and an outer tooth ring 35 engaged with the positioning gear 33 is arranged in the mounting cylinder 31 through the guide groove 34.

[0031] The positioning gear 33 is fixed at one end of the clamping rod 32, and the outer tooth ring 35 slides in the mounting cylinder 31 through the guide groove 34 and is engaged with the positioning gear 33. When the outer tooth ring 35 is engaged with the positioning gear 33, the clamping rod 32 cannot rotate relative to the mounting cylinder 31, thereby solving the technical problem of unstable positioning of the clamping rod 32 in the mounting cylinder 31. When the outer tooth ring 35 is disengaged from the positioning gear 33, the clamping rod 32 can rotate, thereby realizing the overturning of the knife. Through the gear engagement mode, stable positioning of the clamping rod 32 in the mounting cylinder 31 is realized, and the clamping rod 32 is prevented from shaking or deviating during the edge grinding process, thereby improving the machining precision and efficiency. The problem of unstable positioning of the clamping rod 32 is effectively solved, and the overall performance of the knife edge grinding machine is improved.

[0032] In some embodiments, a spring 341 is arranged in the guide groove 34, and the spring 341 causes the outer tooth ring 35 to always have a movement tendency close to the positioning gear 33. The spring 341 is arranged along the axis direction of the guide groove 34, one end of the spring 341 is fixed to the inner wall of the guide groove 34, and the other end of the spring 341 is connected with the outer tooth ring 35, so that the outer tooth ring 35 always moves towards the positioning gear 33. Through the continuous pressure of the spring 341, the outer tooth ring 35 always has a movement tendency close to the positioning gear 33, and the engagement failure between the outer tooth ring 35 and the positioning gear 33 due to looseness or displacement is avoided, so that the clamping and overturning assembly can maintain a stable engagement state during the working process.

[0033] In some embodiments, a four-rib square hole 331 is arranged on the positioning gear 33.

[0034] In some embodiments, a overturning motor 4 is fixed on one side of the base 1, an unlocking piece 41 is fixedly connected to the output end of the overturning motor 4, the unlocking piece 41 includes a convex rib block 411 adapted to the four-rib square hole 331 and a push rod 412 arranged in an annular array outside the convex rib block 411, and the length of the push rod 412 is greater than that of the convex rib block 411. The design of the four-rib square hole 331 enables the convex rib block 411 of the unlocking piece 41 to closely fit the four-rib square hole 331, thereby realizing the direct driving of the positioning gear 33 by the overturning motor 4. The fitting mode of the convex rib block 411 and the four-rib square hole 331 can be close insertion, so as to ensure that no sliding or deviation occurs during rotation. The length of the push rod 412 is greater than that of the convex rib block 411, so that the outer tooth ring 35 can be pushed away from the positioning gear 33 during unlocking, so that the clamping rod 32 can rotate. The annular array design of the push rod 412 can uniformly distribute the thrust force, thereby avoiding damage to the components caused by excessive local force. Further, the end of the push rod 412 can be provided with a ball to reduce friction with the outer tooth ring 35 and improve the smoothness during overturning.

[0035] When the turnover is needed, the moving beam 2 drives the mounting cylinder 31 to move towards the direction close to the turnover motor 4, first pushes the push rod 412 to abut against the outer tooth ring 35, then further moves, the push rod 412 pushes the outer tooth ring 35 to disengage from the positioning gear 33, at this time, the convex rib block 411 on the unlocking piece 41 is inserted into the four-rib square hole 331 of the positioning gear 33, so that the turnover motor 4 can directly drive the positioning gear 33 to rotate through the unlocking piece 41, thereby realizing the quick turnover of the clamping and turnover assembly. Finally, when the moving beam 2 drives the mounting cylinder 31 to move away from the direction of the turnover motor 4, the outer tooth ring 35 disengages from the push rod 412 and is engaged with the positioning gear 33 under the elastic force of the spring 341, thereby realizing the locking of the positioning gear 33.

[0036] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A knife edge-grinding machine with a clamping assembly, comprising a base, a grinding plate disposed at the upper end of the base, a plurality of grinding motors fixed on the grinding plate, and an edge-grinding wheel fixed at the output end of the grinding motor, characterized in that, A movable beam is slidably provided on the base, and a clamping and flipping assembly is fixed on the movable beam; The clamping and flipping assembly includes a mounting cylinder fixed on the movable beam, a clamping rod rotatably disposed inside the movable cylinder, and a sliding first clamping claw and a second clamping claw symmetrically disposed on the clamping rod; The clamping rod is provided with a control component that can move along its axis. A first driving component and a second driving component are rotatably provided on both sides of the clamping rod. One end of the first driving component is hinged to the control component, and the other end of the first driving component is hinged to the first clamping claw. One end of the second driving component is hinged to the control component, and the other end of the second driving component is hinged to the second clamping claw. When the control component moves away from the first clamping claw and the second clamping claw, it drives the first driving component and the second driving component to pull the first clamping claw and the second clamping claw closer to each other. When the control component moves toward the first clamping claw and the second clamping claw, it drives the first driving block and the second driving block to push the first locking mechanism and the second locking mechanism away from each other, respectively.

2. A knife edge grinding machine with a clamping assembly according to claim 1, characterized in that, A lead screw motor is installed inside the clamping rod, and the control component is threadedly connected to the lead screw of the lead screw motor. The lead screw motor drives the control component to move.

3. A knife edge grinding machine with a clamping assembly according to claim 1, characterized in that, The first gripper and the second gripper are provided with anti-slip rubber protrusions on the side that are close to each other.

4. A knife edge grinding machine with a clamping assembly according to claim 1, characterized in that, A positioning gear is fixed at one end of the clamping rod away from the first clamping claw. A guide groove is provided on the side wall of the mounting cylinder, and an external toothed ring that meshes with the positioning gear is slidably disposed in the mounting cylinder through the guide groove.

5. A knife edge grinding machine with a clamping assembly according to claim 4, characterized in that, A spring is provided in the guide groove, and the spring causes the external gear ring to always tend to move closer to the positioning gear.

6. A knife edge grinding machine with a clamping assembly according to claim 5, characterized in that, The positioning gear is provided with a square hole.

7. A knife edge grinding machine with a clamping assembly according to claim 6, characterized in that, A flip motor is fixed to one side of the base, and an unlocking component is fixedly connected to the output end of the flip motor. The unlocking component includes a convex block adapted to the square hole and a push rod arranged in a ring outside the convex block. The length of the push rod is greater than that of the convex block.

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