Clamping device for sharpening knife

Abstract

The utility model discloses a clamping device for sharpening, which comprises a cutter clamping seat and a product fixing piece, one side of the upper end of the cutter clamping seat sinks downwards and is used for adjusting and fastening a cutter handle, and one end of the cutter clamping seat is provided with a sunken mounting surface for clamping and fixing the cutter handle. Through the installation combination of the positioning magnetic attraction seat, the positioning sliding groove, the positioning sliding block, the sliding locking groove, the sliding block locking piece and the strip-shaped locking groove on the cutter clamping seat, the cutting edge part can be magnetically attracted and positioned on the surface of the cutter clamping seat through the positioning magnetic attraction block, and one side of the cutting edge part is limited by utilizing the positioning sliding block and utilizing the strip-shaped locking groove to slide in the positioning sliding groove; and meanwhile, the sliding block locking piece is locked in the strip-shaped locking groove so that the positioning sliding block can be locked and fixed, multi-point fixing of the cutting edge part can be achieved, the phenomenon that the cutting edge part is non-uniformly sharpened due to position deviation in the sharpening process can be avoided, and the stability and firmness of a cutter in the sharpening process are further enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of knife sharpening, and particularly relates to a clamping device for knife sharpening. Background Art

[0002] Household kitchen knives on the market are composed of a blade edge, a blade body and a handle, and they are connected together. The blade edge will become blunt after being used for a long time and needs to be sharpened. The existing knife edge opening methods are divided into flat edge opening and clam edge opening. Traditional Chinese kitchen knives are generally clam edges, and modern knives are mostly flat edges. During the cutting and chopping process of the clam edge, the contact area between the blade surface and the object to be cut is relatively smaller than that of other blade edges, and the resistance received is small, so the retention and cutting performance are better, and the cutting is relatively labor-saving. Since the clam edge opening generally relies on manual grinding, when using the existing knife sharpening tools for clam edge opening, it has relatively high technical requirements for the opening master, the operation is relatively complex, and it is difficult for inexperienced or less experienced users to grind a high-quality clam edge.

[0003] For this reason, a knife sharpening assembly with the publication number of "CN220161971U" includes a fixing part, a sliding rod, a pull rod, a sliding block and a whetstone; the fixing part is fixedly connected with the sliding rod, the sliding block is slidably installed on the sliding rod, the pull rod is movably connected with the lower end of the sliding block through a universal joint, and the whetstone is installed on the pull rod. The utility model also provides a knife sharpening device, including a base, a bracket, a fixture for clamping a knife and a knife sharpening assembly. The fixture is arranged on one side of the base, and the bracket is detachably installed on the base and away from the fixture; the fixing part is detachably connected with the bracket. The utility model greatly simplifies the structure of the knife sharpening assembly, reduces the production cost, and is more convenient for inexperienced users to perform clam edge opening and grinding.

[0004] However, for the above-mentioned knife sharpening assembly, although the fixture 4 is fixed on the base 1 and can rotate at a pitching angle with the connecting bolt as the axis, the knife can be adjusted at a pitching angle along with the fixture to realize grinding of the knife at different angles. There are still the following obvious defects in the use process: the above-mentioned fixture can only clamp and fix a small part of the blade edge of the knife. Due to the small clamping area, during the back-and-forth knife sharpening, the blade edge of the knife will bend and vibrate because of its thin thickness, resulting in the problem of the position of the knife on the clamping seat shifting, thus causing uneven grinding thickness of the blade edge of the knife. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a clamping device for knife sharpening to solve the problems put forward in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solution: A clamping device for sharpening knives, including a tool holder, and a product fixing member which is recessed downward on one side of the upper end of the tool holder for adjusting and fastening the tool handle. One end of the tool holder is provided with a concave mounting surface for clamping and fixing the tool handle. Locking bolt members for sliding the product fixing member to clamp and lock the tool handle are provided at positions inward from both side edges of the concave mounting surface. Two positioning chutes for sliding a pressing member to press against one side of the tool edge are formed on one side of the surface of the tool holder. Positioning sliders for pressing against one side of the tool edge are slidably provided inside the positioning chutes. Positioning magnetic attraction blocks for magnetically fixing the tool edge are provided at positions corresponding to one end of the positioning chutes and on the surface of the tool holder.

[0007] Preferably, an arc-shaped sliding lock groove is formed on the surface of one end of the product fixing member. The product fixing member is locked on both sides of the concave mounting surface through the locking bolt members. And a positioning cylindrical rod is vertically provided at one end of the surface of the product fixing member, which can position and clamp the tool handle of the tool, so that the whole tool remains stable during sharpening.

[0008] Preferably, slider locking members are uniformly threaded inside the positioning chutes, and the slider locking members pass through the positioning sliders and are locked in the positioning chutes, so that the positioning sliders can slide in the positioning chutes and be locked by the slider locking members, preventing the tool from shifting in position.

[0009] Preferably, a strip-shaped lock groove with arc-shaped ends is formed on the surface of the positioning slider. And a limiting convex surface for limiting and supporting the slider locking member extends inward from the bottom end inside the strip-shaped lock groove. The slider locking member is hidden in the strip-shaped lock groove. One side surface of one end of the positioning slider is an L-shaped structure and slides on the surface of the tool holder, so as to press against one side of the tool and keep the position unchanged during sharpening.

[0010] Preferably, a bottom plate fixing screw member for mounting the tool holder on the sharpener is threadedly penetrated through the surface of the tool holder between the positioning chutes, so as to fix the tool on the tool holder and polish the tool edge by using the sharpener.

[0011] Preferably, a tool handle load-bearing screw for supporting the bottom surface of the tool handle to keep it horizontal is provided at the central position on one side of the concave mounting surface, which can support the bottom of one end of the tool handle, ensuring that the tool is fixed on the tool holder and remains in a horizontal state.

[0012] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: For the clamping device for knife sharpening, through the installation combination of the positioning magnetic seat, positioning sliding groove, positioning slider, sliding locking groove, slider locking part, and strip-shaped locking groove on the tool holder, the blade part can be magnetically positioned on the surface of the tool holder through the positioning magnetic block, and the positioning slider can be used to limit one side of the blade part by sliding in the strip-shaped locking groove along the positioning sliding groove. At the same time, the slider locking part is locked inside the strip-shaped locking groove to lock and fix the positioning slider, thus realizing multi-point fixation of the blade part, and preventing the phenomenon of uneven sharpening of the blade due to position deviation during the knife sharpening process, further enhancing the stability and firmness of the tool during knife sharpening; Through the coordinated use of the product fixing part, locking bolt part, positioning cylindrical rod, and sliding locking groove in the concave installation surface on one side of the tool holder, the handle part can be clamped on the left and right sides of the handle part by the sliding of the product fixing part to make the positioning cylindrical rod clamp, and then locked and positioned by the locking bolt part, thus realizing the clamping and fixation of the handle part. Through the clamping and fixation of the blade part and the handle part by the above structure, the tool will not be displaced due to frictional resistance during knife sharpening, and at the same time, knives with different blade widths can be clamped for knife sharpening operations, further expanding the scope of use of the clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic diagram of the clamping combination structure of the tool and the tool holder of the present utility model.

[0015] In the figure: 1. Tool holder; 2. Product fixing part; 3. Concave installation surface; 4. Locking bolt part; 5. Positioning sliding groove; 6. Positioning slider; 7. Positioning magnetic block; 8. Sliding locking groove; 9. Positioning cylindrical rod; 10. Slider locking part; 11. Strip-shaped locking groove; 12. Bottom plate fixing screw part; 13. Handle bearing screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figure 1-2, the present utility model provides a technical solution: a clamping device for sharpening knives, including a tool holder 1, and a product fixing member 2 which is recessed downward on one side of the upper end of the tool holder 1 for adjusting and fastening the handle of the knife. The product fixing member 2 is arranged on both sides of the surface of the concave mounting surface 3 to facilitate clamping and fixing the handle part, limit the position of the handle part, and ensure that the handle part is more stable and firm during knife sharpening. One end of the tool holder 1 is provided with a concave mounting surface 3 for clamping and fixing the handle of the knife, so that the product fixing member 2 can be clamped, and the handle part with a round surface can be suspended, supported and clamped. At the positions where both sides of the concave mounting surface 3 face inwards, there are locking bolt members 4 for sliding the product fixing member 2 to clamp and lock the handle of the knife, so that the product fixing member 2 can be clamped and locked by sliding the locking bolt members 4 when clamping handles of different sizes. On one side of the surface of the tool holder 1, there are two positioning sliding grooves 5 for sliding the pressing member to press against one side of the blade of the knife. The positioning sliding grooves 5 can enable the positioning slider 6 to slide horizontally inside it to limit and press against the edge end of the blade. Inside the positioning sliding grooves 5, there are positioning sliders 6 for pressing against one side of the blade of the knife. The positioning slider 6 can slide to press against blades of different widths. At the positions corresponding to one end of the positioning sliding grooves 5 and on the surface of the tool holder 1, there are positioning magnetic attraction blocks 7 for magnetically fixing the blade of the knife. A layer of rubber protection cushion layer is sleeved outside the positioning magnetic attraction blocks 7, which can prevent the blade of the knife from directly contacting the positioning magnetic attraction blocks 7 and causing friction and scratching phenomena.

[0018] On the surface of one end of the product fixing member 2, there is a sliding lock groove 8 with an arc-shaped end, which can enable the product fixing member 2 to slide horizontally through the sliding lock groove 8 on the locking bolt member 4 and maintain linear motion. The product fixing member 2 is locked on both sides of the concave mounting surface 3 through the locking bolt member 4 to ensure the clamping and locking of the handle part by the product fixing member 2. On the surface of one end of the product fixing member 2, there is a vertical positioning cylindrical rod 9, and a silica gel sleeve is sleeved on the positioning cylindrical rod 9, and the silica gel sleeve can play a role in protecting the surface of the clamped handle part. Inside the positioning sliding grooves 5, there are uniformly threaded slider locking members 10, and the slider locking members 10 pass through the positioning sliders 6 and are locked in the positioning sliding grooves 5, which can lock and fix the sliding positioning slider 6 after sliding adjustment.

[0019] The surface of the positioning slider 6 is provided with a strip-shaped locking groove 11 with arc-shaped ends at both ends, and a limiting convex surface for limiting and supporting the slider locking member 10 extends inward from the inner bottom end of the strip-shaped locking groove 11, so that the slider locking member 10 is limited inside the strip-shaped locking groove 11 to lock the positioning slider 6. The slider locking member 10 is hidden in the strip-shaped locking groove 11. One side surface of the positioning slider 6 is of an L-shaped structure and slides on the surface of the tool holder 1, which can magnetically attract the surface of the blade part and then perform the function of side tightening. Between the positioning chutes 5 and on one side of the surface of the tool holder 1, a bottom plate fixing screw member 12 for installing the tool holder 1 on the grinding machine is threaded through, so that the tool holder 1 can be installed on the grinding machine through the bottom plate fixing screw member 12. At the central position on one side of the concave mounting surface 3, a tool handle bearing screw 13 for supporting the bottom surface of the tool handle to keep it horizontal is provided, which can support the bottom of the suspended position of the tool handle part.

[0020] Specifically, during use, first, the tool holder 1 is fixed on the grinding machine table through the bottom plate fixing screw member 12, and the blade part of the tool to be ground is adsorbed and fixed on the surface of the tool holder 1 through the positioning magnetic attraction block 7, and the tool handle part of the tool is suspended between the two product fixing members 2. The suspended tool handle part is supported at one end of the tool handle part through the tool handle bearing screw 13 to ensure the support stability of the suspended tool handle part. At this time, the product fixing member 2 uses the sliding locking groove 8 to position and slide on the locking bolt member 4, so that the positioning cylindrical rod 9 approaches and clamps the two side edges of the tool handle part. After the tool handle part is clamped, the locking bolt member 4 clamps and locks the sliding position of the product fixing member 2 on the surface of the concave mounting surface 3 to keep the tool handle part firmly in place. Then, the positioning slider 6 slides in the positioning chute 5, and while sliding, it slides under the limitation of the strip-shaped locking groove 11 by the slider locking member 10. After the positioning slider 6 slides and limits and presses against the edge end of the blade part, the slider locking member 10 is locked in the strip-shaped locking groove 11, so that the positioning slider 6 can be positioned and fixed in the positioning chute 5 to perform multi-point positioning and magnetic attraction fixation on the blade part, thereby ensuring that the position of the tool remains unchanged during grinding and improving the grinding quality of the blade part.

[0021] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping device for sharpening a knife, comprising a tool holder (1), and a product fixing member (2) having a downward depression on one side of the upper end of the tool holder (1) for adjusting and tightening a knife handle, characterized in that: One end of the tool holder (1) is provided with a concave mounting surface (3) for clamping and fixing the tool handle, and the two sides of the concave mounting surface (3) are provided with locking bolts (4) for sliding the product fixing part (2) to clamp and lock the tool handle, and one side of the surface of the tool holder (1) is provided with two positioning grooves (5) for sliding the clamping part to clamp the tool blade, and the inside of the positioning groove (5) is provided with a positioning slider (6) for clamping the tool blade, and a positioning magnetic block (7) for magnetically fixing the tool blade is provided at a position corresponding to one end of the positioning groove (5) and located on the surface of the tool holder (1).

2. A knife sharpening clamping device according to claim 1, characterized in that: A sliding locking groove (8) with an arc-shaped end is provided on one end surface of the product fixing part (2); the product fixing part (2) is locked on both sides of the concave mounting surface (3) by means of locking bolts (4); and a positioning cylindrical rod (9) is vertically provided on one end of the surface of the product fixing part (2).

3. The knife sharpening clamping device according to claim 1, characterized in that: The interior of the positioning slide groove (5) is evenly threaded with a slider lock (10), and the slider lock (10) passes through the positioning slide block (6) and is positioned and locked in the positioning slide groove (5).

4. The knife sharpening clamping device according to claim 1, characterized in that: The surface of the positioning slider (6) is provided with a strip-shaped locking groove (11) with arc-shaped ends, and the bottom end of the strip-shaped locking groove (11) extends inward to provide a limiting convex surface for limiting support of the slider locking member (10), and the slider locking member (10) is hidden in the strip-shaped locking groove (11), and one end side surface of the positioning slider (6) is an L-shaped structure that slides on the surface of the tool holder (1).

5. The knife sharpening clamping device according to claim 1, characterized in that: A bottom plate fixing screw (12) for mounting the tool holder (1) on the tool sharpener is provided between the positioning slots (5) and on one side of the surface of the tool holder (1).

6. The knife sharpening clamping device according to claim 1, characterized in that: A handle bearing screw (13) for supporting the bottom surface of the handle and maintaining it horizontal is provided at the center of one side of the concave mounting surface (3).

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