Top angle knife sharpener

Abstract

The utility model relates to the technical field of woodworking tools, in particular to a vertex angle sharpener. The device comprises a blade fixing mechanism, a rotating mechanism, a top pressing mechanism and a measuring mechanism. According to the vertex angle knife sharpener, through cooperation of the blade fixing mechanism, the rotating mechanism, the top pressing mechanism and the measuring mechanism, the blade can be efficiently fixed and ground, the angle of the blade needing to be machined can be quantitatively calibrated, and the grinding efficiency and the machining precision of the blade can be improved; and meanwhile, the cutter fixing and grinding device can be suitable for fixing and grinding various cutters in the market and has high applicability.

Description

Technical Field

[0001] This application relates to the technical field of woodworking tools, and particularly relates to a vertex angle sharpener. Background Art

[0002] A plane is a commonly used working tool when processing grooves or planes in woodworking. The angle and sharpness of the plane blade are one of the most important factors determining the efficiency of woodworking operations and the structural form of products. In the prior art, woodworkers use simple blade fixing tools to measure and grind the blade angle, which has problems such as inaccurate blade angle and low grinding efficiency. The vertex angle sharpener provided in this application is a special tool for accurately and quickly grinding the blade angle. Utility Model Content

[0003] In view of this, this application provides a vertex angle sharpener to solve all or part of the technical problems described in the background art of this application.

[0004] The solution adopted by this application to solve its technical problems is as follows:

[0005] A vertex angle sharpener includes a blade fixing mechanism and a rotating mechanism; the blade fixing mechanism includes a fixing frame, a driving shaft, a left clamping block, and a right clamping block; left clamping block threads and right clamping block threads are provided on the driving shaft, and the helix directions of the left clamping block threads and the right clamping block threads are opposite; a left clamping block thread mating hole is provided on the left clamping block, and a right clamping block thread mating hole is provided on the right clamping block; the driving shaft is hinged to the fixing frame, the left clamping block is assembled on the driving shaft through the cooperation of the left clamping block thread mating hole and the left clamping block threads, and the right clamping block is assembled on the driving shaft through the cooperation of the right clamping block thread mating hole and the right clamping block threads; the rotating mechanism includes a fixed shaft, a rotating cylinder, and a bearing seat; the fixed shaft is assembled to the fixing frame through the bearing seat, and the rotating cylinder is assembled on the fixed shaft and can rotate on the fixed shaft.

[0006] Preferably, the left clamping block includes an upper left clamping block, a lower left clamping block, and a left clamping block screw; a left positioning post and a left assembly hole are provided on the upper left clamping block; a left positioning hole and a left screw hole are provided on the lower left clamping block; the left positioning post can be embedded in different left positioning holes to adjust the inclination angle of the upper left clamping block; the upper left clamping block and the lower left clamping block are fixedly connected through the cooperation of the left assembly hole, the left screw hole, and the left clamping block screw, and the left clamping block thread mating hole is provided on the lower left clamping block.

[0007] Preferably, the right clamping block includes an upper right clamping block, a lower right clamping block, and a right clamping block screw; a right positioning post and a right assembly hole are provided on the upper right clamping block; a right positioning hole and a right screw hole are provided on the lower right clamping block; the right positioning post can be embedded in different right positioning holes to adjust the inclination angle of the upper right clamping block; the upper right clamping block and the lower right clamping block are fixedly connected through the cooperation of the right assembly hole, the right screw hole, and the right clamping block screw, and the right clamping block thread mating hole is provided on the lower right clamping block.

[0008] Preferably, a left nesting groove is further provided on the upper left clamping block, and the left nesting groove is arranged at the opening of the left assembly hole; a left nesting post is further provided on the lower left clamping block, and the left screw hole is arranged on the left nesting post; the left nesting post is assembled in the left nesting groove.

[0009] Preferably, a right nesting groove is further provided on the upper right clamping block, and the right nesting groove is arranged at the notch of the right assembly hole; a right nesting post is further provided on the lower right clamping block, and the right screw hole is arranged on the right nesting post; the right nesting post is assembled in the right nesting groove.

[0010] Preferably, the number of the left positioning posts is two, and the two left positioning posts are symmetrically distributed on both sides of the left assembly hole; the number of the left positioning holes is two rows, and the two rows of left positioning holes are symmetrically distributed on both sides of the left screw hole, and each row of left positioning holes is distributed along an arc.

[0011] Preferably, the number of the right positioning posts is two, and the two right positioning posts are symmetrically distributed on both sides of the right assembly hole; the number of the right positioning holes is two rows, and the two rows of right positioning holes are symmetrically distributed on both sides of the right screw hole, and each row of right positioning holes is distributed along an arc.

[0012] Preferably, the rotating mechanism further includes an eccentric shaft, an eccentric shaft hole is provided on the eccentric shaft, and the eccentric shaft is fixedly assembled on the fixed shaft through the eccentric shaft hole; a rotating cylinder shaft hole is provided on the rotating cylinder, and the rotating cylinder is rotatably assembled on the eccentric shaft through the rotating cylinder shaft hole.

[0013] Preferably, the rotating mechanism further includes an adjusting component, a positioning portion is provided on the adjusting component; a positioning groove is provided on the bearing seat; the fixed shaft is fixedly connected to the adjusting component, and the positioning portion is arranged in the positioning groove.

[0014] Preferably, a radial locking hole is further provided on the eccentric shaft, and the eccentric shaft is fixedly assembled with the fixed shaft through the cooperation of the radial locking hole and the locking screw.

[0015] Preferably, the vertex angle sharpener further includes a top pressing mechanism, and the top pressing mechanism includes a top frame, a pressing screw rod, and a presser. A pressing screw hole is provided on the top frame; the top frame is fixedly assembled on the fixed frame, the pressing screw rod is assembled in the pressing screw hole through thread cooperation, and the presser is fixedly assembled at the end of the pressing screw rod.

[0016] Preferably, the fixed frame includes a bottom frame, a left end frame, a left vertical frame, a right end frame, and a right vertical frame; the left end frame and the right end frame are respectively fixedly assembled on the left and right sides of the bottom frame, and the left vertical frame and the right vertical frame are respectively assembled on the left end frame and the right end frame.

[0017] Preferably, the apex angle sharpener further includes a measuring mechanism, which includes a grinding angle measuring scale; a scale slot is provided on the fixing frame; a sliding chuck is provided on the grinding angle measuring scale; the grinding angle measuring scale is slidably assembled on the fixing frame through the cooperation of the sliding chuck and the scale slot.

[0018] Preferably, the scale slot is a dovetail groove, and the sliding chuck is a chuck structure matching the dovetail groove structure. A clamping connection can be formed between the scale slot and the sliding chuck, and this clamping connection allows the grinding angle measuring scale to slide along the extending direction of the slot body of the scale slot, preventing the grinding angle measuring scale from falling off the fixing frame along the direction perpendicular to the extending direction of the scale slot.

[0019] Preferably, the apex angle sharpener further includes a locking component, which is fixedly connected to the grinding angle measuring scale and is used to fixedly assemble the grinding angle measuring scale to the fixing frame. Further preferably, a screw hole is provided on the locking component, and the grinding angle measuring scale is assembled to the fixing frame through the cooperation of the screw hole and a common fastener.

[0020] Preferably, grinding angle scale lines are provided on the grinding angle measuring scale to facilitate quantitative adjustment of the fixed length of the saw blade during use. Further preferably, the grinding angle scale lines are marked with the grinding angles of common saw blades. Further preferably, the grinding angles of common saw blades include 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°.

[0021] Preferably, a number of grinding angle indication lines are further provided on the grinding angle measuring scale, and the grinding angle indication lines are used for users to customarily mark suitable grinding angles according to their own needs.

[0022] Preferably, a saw blade length calibrator and a calibrator locking screw are further provided on the grinding angle measuring scale; a calibrator sliding slot and a calibrator locking hole are provided on the saw blade length calibrator, and the calibrator locking hole communicates with the calibrator sliding slot; the saw blade length calibrator is slidably assembled on the grinding angle measuring scale through the cooperation between the calibrator sliding slot and the scale body of the grinding angle measuring scale, and the calibrator locking screw is assembled in the calibrator locking hole; tightening the calibrator locking screw can fix the saw blade length calibrator to the grinding angle measuring scale, and loosening the calibrator locking screw allows the saw blade length calibrator to slide back and forth on the grinding angle measuring scale.

[0023] Preferably, a scale body sliding slot is provided on the grinding angle measuring scale, and a calibrator sliding head is provided on the saw blade length calibrator, and the calibrator sliding head is assembled in the scale body sliding slot.

[0024] Preferably, a plurality of quick positioning grooves for grinding angles are provided on the grinding angle measuring ruler, and a fixed-angle glass bead screw is provided on the saw blade length calibrator; through the cooperation of the quick positioning grooves for grinding angles and the fixed-angle glass bead screw, the saw blade length calibrator can be quickly positioned to the required grinding angle to improve the efficiency and accuracy of grinding angle adjustment.

[0025] Beneficial technical effects:

[0026] The apex angle knife grinder provided by this application, through the cooperation between the blade fixing mechanism, the rotating mechanism, the top pressing mechanism, and the measuring mechanism, can not only fix and grind the blade with high efficiency, but also quantitatively calibrate the angle of the blade to be processed, which is beneficial to improving the grinding efficiency and processing accuracy of the blade; at the same time, it can also be applied to the fixing and grinding work of various tools on the market, and has the technical advantage of strong applicability.

[0027] The following combines the description of the drawings and the specific implementation manners to introduce the technical solutions and technical effects of this application in detail. Description of the Drawings

[0028] Figure 1 : Schematic diagram of the geometric relationship of the blade extension length, fixed height, and grinding angle;

[0029] Figure 2 : Three-dimensional structure schematic diagram of the apex angle knife grinder;

[0030] Figure 3 : First perspective structure schematic diagram of the apex angle knife grinder;

[0031] Figure 4 : Second perspective structure schematic diagram of the apex angle knife grinder;

[0032] Figure 5 : Figure 2 Schematic diagram of the decomposition of the rotating mechanism in;

[0033] Icon description:

[0034] 10 - Blade fixing mechanism, 20 - Rotating mechanism, 30 - Top pressing mechanism, 40 - Measuring mechanism;

[0035] 110 - Fixing frame, 120 - Driving shaft, 130 - Left clamping block, 140 - Right clamping block;

[0036] 1110 - Bottom frame, 1120 - Left end frame, 1130 - Left vertical frame, 1140 - Right end frame, 1150 - Right vertical frame, 1160 - Measuring scale card slot;

[0037] 1210 - Threaded part of the left clamping block, 1220 - Threaded part of the right clamping block, 1230 - Driving knob;

[0038] 1310 - Upper left clamping block, 1320 - Lower left clamping block, 1330 - Left clamping block screw, 1340 - Left clamping block threaded mating hole;

[0039] 1311 - Left positioning post, 1312 - Left assembly hole, 1313 - Left nested groove;

[0040] 1321 - Left positioning hole, 1322 - Left screw hole, 1323 - Left nested post;

[0041] 210 - Fixed shaft, 220 - Rotating cylinder, 230 - Bearing seat, 240 - Eccentric shaft, 260 - Adjusting component, 270 - Locking screw;

[0042] 2210 - Rotating cylinder shaft hole;

[0043] 2310 - Positioning groove;

[0044] 2410 - Eccentric shaft hole, 2420 - Radial locking hole;

[0045] 2610 - Positioning part;

[0046] 310 - Top frame, 320 - Compression screw, 330 - Compressor;

[0047] 3110 - Compression screw hole;

[0048] 410 - Grinding angle measuring ruler; 420 - Locking component, 430 - Ruler body locking screw, 440 - Saw blade length calibrator, 450 - Calibrator locking screw;

[0049] 4110 - Sliding chuck, 4120 - Grinding angle scale line, 4130 - Grinding angle indicating line, 4140 - Ruler body sliding groove, 4150 - Grinding angle quick positioning groove;

[0050] 4210 - Ruler body locking screw hole;

[0051] 4410 - Calibrator sliding groove, 4420 - Calibrator locking hole, 4430 - Calibrator sliding head, 4440 - Fixed angle glass bead screw. Detailed implementation method

[0052] Please refer to Figure 1 , the blade is fixed to the knife grinder. On the premise that the height H of the blade is constant, the protruding length L of the blade determines the size of the blade grinding angle A. By calibrating the protruding length L of the blade and the blade grinding angle A, it is possible to quantitatively determine the size of the blade grinding angle A by adjusting the protruding length L of the blade. Thus, when the required blade grinding angle Ax is constant, there is a unique corresponding protruding length Lx of the blade. Fixing the blade according to this protruding length Lx can relatively accurately perform the blade angle grinding work.

[0053] Please refer to Figures 2-5 , the apex angle sharpener disclosed in the present application includes a blade fixing mechanism 10, a rotating mechanism 20, a top pressing mechanism 30, and a measuring mechanism 40.

[0054] The blade fixing mechanism 10 includes a fixing frame 110, a driving shaft 120, a left clamping block 130, and a right clamping block 140.

[0055] The driving shaft 120 is hinged to the fixing frame 110 and a driving knob 1230 is provided at one end. Rotating the driving knob 1230 can drive the driving shaft 120 to rotate together.

[0056] The driving shaft 120 is provided with a left clamping block thread portion 1210 and a right clamping block thread portion 1220, and the helix directions of the left clamping block thread portion 1210 and the right clamping block thread portion 1220 are opposite. A left clamping block thread fitting hole 1340 is provided on the left clamping block 130, and a right clamping block thread fitting hole is provided on the right clamping block 140; the left clamping block 130 is assembled on the driving shaft 120 through the cooperation of the left clamping block thread fitting hole 1340 and the left clamping block thread portion 1210, and the right clamping block 140 is assembled on the driving shaft 120 through the cooperation of the right clamping block thread fitting hole and the right clamping block thread portion 1220.

[0057] Rotating the driving shaft 120 can drive the left clamping block 130 and the right clamping block 140 to move closer to each other simultaneously to clamp the blade to be processed, and can also drive the left clamping block 130 and the right clamping block 140 to move away from each other simultaneously to loosen the clamped blade.

[0058] In a variant embodiment of the present application, the fixing frame 110 includes a bottom frame 1110, a left end frame 1120, a left vertical frame 1130, a right end frame 1140, and a right vertical frame 1150; the left end frame 1120 and the right end frame 1140 are respectively fixedly assembled on the left and right sides of the bottom frame 1110, and the left vertical frame 1130 and the right vertical frame 1150 are respectively assembled on the left end frame 1120 and the right end frame 1140.

[0059] The rotating mechanism 20 includes a fixing shaft 210, a rotating cylinder 220, a bearing seat 230, an eccentric shaft 240, an adjusting member 260, and a locking screw 270. The bearing seat 230 is fixedly assembled on the fixing frame 110, and the fixing shaft 210 is assembled to the fixing frame 110 through the bearing seat 230. The eccentric shaft 240 is provided with an eccentric shaft hole 2410 and a radial locking hole 2420; the eccentric shaft 240 is fixedly assembled on the fixing shaft 210 through the eccentric shaft hole 2410, and the fixed assembly between the eccentric shaft 240 and the fixing shaft 210 is achieved through the cooperation of the radial locking hole 2420 and the locking screw 270. The rotating cylinder 220 is provided with a rotating cylinder shaft hole 2210, and the rotating cylinder 220 is rotatably assembled on the eccentric shaft 240 through the rotating cylinder shaft hole 2210 and can rotate around the eccentric shaft 240.

[0060] A plurality of positioning portions 2610 are provided on the adjusting member 260, and a positioning groove 2310 is provided on the bearing seat 230. The number and shape of the positioning portions 2610 and the positioning groove 2310 match. The adjusting member 260 is fixedly connected to the fixed shaft 210, and the positioning portions 2610 are assembled in the positioning groove 2310.

[0061] Assembling the positioning portions 2610 into the positioning groove 2310 can limit the rotation of the fixed shaft 210 and the eccentric shaft 240, so that the rotating cylinder 220 can rotate around the eccentric shaft 240 with a constant height. Pulling the positioning portions 2610 out of the positioning groove 2310 can adjust the rotation height of the rotating cylinder 220 by rotating the fixed shaft 210 and the eccentric shaft 240. After the adjustment is completed, the positioning portions 2610 are assembled into the positioning groove 2310 again to machine the back angle of the blade.

[0062] The top pressing mechanism 30 includes a top frame 310, a pressing screw 320, and a presser 330. A pressing screw hole 3110 is provided on the top frame 310. The top frame 310 is fixedly assembled on the fixed frame 110. The pressing screw 320 is assembled in the pressing screw hole 3110 by thread fit, and the presser 330 is fixedly assembled at the end of the pressing screw 320. Rotating the pressing screw 320 can make the presser 330 move towards the fixed frame 110 to press the blade, or make the presser 330 leave the fixed frame 110 to release the blade. The top pressing mechanism 30 is used to cooperate with the blade fixing mechanism 10 to fix the blade. When the blade is not suitable to be fixed by the blade fixing mechanism 10, it can also be used alone for the blade pressing mechanism 30 to fix.

[0063] The measuring mechanism 40 includes a grinding angle measuring ruler 410; a ruler slot 1160 is provided on the fixed frame 110, and a sliding chuck 4110 is provided on the grinding angle measuring ruler 410; the grinding angle measuring ruler 410 is slidably assembled on the fixed frame 110 through the cooperation of the sliding chuck 4110 and the ruler slot 1160. Among them: the ruler slot 1160 is a dovetail groove, and the sliding chuck 4110 is a chuck structure matching the dovetail groove structure. A clamping connection can be formed between the ruler slot 1160 and the sliding chuck 4110, and this clamping connection allows the grinding angle measuring ruler 410 to slide along the extending direction of the groove body of the ruler slot 1160, preventing the grinding angle measuring ruler 410 from falling off the fixed frame 110 along the direction perpendicular to the extending direction of the ruler slot 1160.

[0064] The grinding angle measuring ruler 410 is provided with grinding angle scale lines 4120 to facilitate quantitative adjustment of the fixed length of the saw blade during use. The grinding angle scale lines 4120 are marked with the grinding angles of common saw blades. The grinding angles of common saw blades include 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, etc.

[0065] In a variant embodiment of the present application, a plurality of grinding angle indicating lines 4130 are further provided on the grinding angle measuring ruler 410, and the grinding angle indicating lines 4130 are used for a user to customarily mark a suitable grinding angle according to their own needs.

[0066] Principle and effect description:

[0067] Suppose the angle that the blade needs to be ground is A = 20°. First, fix the blade to the blade fixing mechanism 10, and make the part of the blade that needs to be ground flush with the 20° scale line on the grinding angle measuring ruler 410;

[0068] Remove the grinding angle measuring ruler 410, push the blade fixing mechanism 10 to drive the blade to contact the oilstone for saw blade grinding, until the ground part of the blade forms a horizontal contact with the oilstone, and complete the processing of the 20° blade;

[0069] When the back angle of the blade needs to be processed, pull out the positioning part 2610 from the positioning groove 2310, rotate the fixed shaft 210 and the eccentric shaft 240 to adjust the rotation height of the rotating cylinder 220 to a suitable height, then assemble the positioning part 2610 into the positioning groove 2310, and push the blade fixing mechanism 10 to grind the back angle.

[0070] Thus, the tip angle sharpener disclosed in the present application, through the cooperation between the blade fixing mechanism 10, the rotating mechanism 20, the top pressing mechanism 30, and the measuring mechanism 40, can not only fix and grind the blade with high efficiency, but also quantitatively calibrate the required blade angle, which is beneficial to improving the blade grinding efficiency and processing accuracy.

[0071] In a variant embodiment of the present application, the measuring mechanism 40 further includes a locking member 420. The locking member 420 is fixed to the grinding angle measuring ruler 410 and is used to fixedly assemble the grinding angle measuring ruler 410 to the fixing frame 110. Specifically, a ruler body locking screw hole 4210 is provided on the locking member 420, and the grinding angle measuring ruler 410 is assembled to the fixing frame 410 through the cooperation of the ruler body locking screw hole 4210 and the ruler body locking screw 430. The ruler body locking screw 430 can be a common fastener such as a screw. After adjusting the grinding angle of the blade, loosen the ruler body locking screw 430 and remove the grinding angle measuring ruler 410 from the fixing frame 410.

[0072] In a variant embodiment of the present application, the measuring mechanism 40 further includes a saw blade length calibrator 440 and a calibrator locking screw 450. The saw blade length calibrator 440 is provided with a calibrator sliding groove 4410, a calibrator locking hole 4420, and a calibrator sliding head 4430. The calibrator locking hole 4420 communicates with the calibrator sliding groove 4410. The grinding angle measuring ruler 410 is provided with a ruler body sliding groove 4140.

[0073] The saw blade length calibrator 440 is slidably assembled on the grinding angle measuring ruler 410 through the cooperation between the calibrator sliding groove 4410 and the ruler body of the grinding angle measuring ruler 410; the calibrator locking screw 450 is assembled in the calibrator locking hole 4420; the calibrator sliding head 4430 is assembled in the ruler body sliding groove 4140. Tightening the calibrator locking screw 450 can fix the saw blade length calibrator 440 to the grinding angle measuring ruler 410, and loosening the calibrator locking screw 450 allows the saw blade length calibrator 440 to slide back and forth on the grinding angle measuring ruler 410.

[0074] In a variant embodiment of the present application, a plurality of grinding angle quick positioning grooves 4150 are provided on the grinding angle measuring ruler 410, and the grinding angle quick positioning grooves 4150 correspond to the grinding angle scale lines 4120. A fixed angle glass bead screw 4440 is provided on the saw blade length calibrator 440; through the cooperation of the grinding angle quick positioning groove 4150 and the fixed angle glass bead screw 4440, the saw blade length calibrator 440 can be quickly positioned to the required grinding angle to improve the efficiency and accuracy of grinding angle adjustment.

[0075] The foregoing embodiment of driving the left clamping block 130 and the right clamping block 140 to clamp or release the blade by rotating the drive shaft 120 can complete the clamping and fixing of most blades on the market. However, for some forged blades in Japan, due to the irregular shape of the edge part, it is difficult to effectively fix them by the left and right clamping blocks.

[0076] To solve the processing and fixing of Japanese forged blades, the present application adopts left and right clamping blocks of another structure. Please refer to Figure 3 and Figure 4 , the left clamping block 130 includes an upper left clamping block 1310, a lower left clamping block 1320, and a left clamping block screw 1330.

[0077] The upper left clamping block 1310 is provided with a left positioning post 1311, a left assembly hole 1312, a left nested groove 1313, and a left clamping block inclined groove 1314, and the left nested groove 1313 is provided at the opening of the left assembly hole 1312.

[0078] The lower left clamping block 1320 is provided with a left positioning hole 1321, a left screw hole 1322, and a left nested post 1323, and the left screw hole 1322 is provided on the left nested post 1323.

[0079] The number of the left positioning posts 1311 is two, and the two left positioning posts 1311 are symmetrically distributed on both sides of the left assembly hole 1312.

[0080] The number of left positioning holes 1321 is two rows, and the two rows of left positioning holes 1321 are symmetrically distributed on both sides of the left screw hole 1322. Moreover, each row of left positioning holes 1321 is distributed along an arc.

[0081] The upper left clamping block 1310 and the lower left clamping block 1320 are fixedly connected through the cooperation of the left assembly hole 1312, the left screw hole 1322, and the left clamping block screw 1330. The left clamping block threaded mating hole 1340 is provided on the lower left clamping block 1320. Loosening the left clamping block screw 1330 can embed the left positioning post 1311 into different left positioning holes 1321 to adjust the inclination angle of the upper left clamping block 1310.

[0082] The composition, connection of the right clamping block 140 are the same as those of the left clamping block 130:

[0083] The right clamping block 140 includes an upper right clamping block, a lower right clamping block, and a right clamping block screw.

[0084] The upper right clamping block is provided with a right positioning post, a right assembly hole, a right nesting groove, and a right clamping block inclined groove. The right nesting groove is provided at the opening of the right assembly hole.

[0085] The lower right clamping block is provided with a right positioning hole, a right screw hole, and a right nesting post. The right screw hole is provided on the right nesting post.

[0086] The number of right positioning posts is two, and the two right positioning posts are symmetrically distributed on both sides of the right assembly hole.

[0087] The number of right positioning holes is two rows, and the two rows of right positioning holes are symmetrically distributed on both sides of the right screw hole. Moreover, each row of right positioning holes is distributed along an arc.

[0088] The upper right clamping block and the lower right clamping block are fixedly connected through the cooperation of the right assembly hole, the right screw hole, and the right clamping block screw. The right clamping block threaded mating hole is provided on the lower right clamping block. Loosening the right clamping block screw can embed the right positioning post into different right positioning holes to adjust the inclination angle of the upper right clamping block.

[0089] When it is necessary to fix a Japanese forged blade or other blades with irregular edges, first loosen the left clamping block screw 1330 and the right clamping block screw, adjust the inclination angles of the upper left clamping block 1310 and the upper right clamping block to coincide with the fixing parts of the blade, then tighten the left clamping block screw 1330 and the right clamping block screw, and then clamp the blade through the driving shaft 120 via the upper left clamping block 1310 and the upper right clamping block. The calibration of the blade grinding angle, the grinding process of the blade, and the processing adjustment of the blade clearance angle are the same as those in the foregoing embodiments and will not be elaborated herein.

[0090] Therefore, the tip angle sharpener disclosed in this application can also be applicable to the fixing and grinding work of various tools on the market and has the technical advantage of strong applicability.

[0091] The technical solutions and technical effects of the present application have been elaborated in detail in combination with the accompanying drawings of the specification and specific embodiments. It should be noted that those skilled in the art can also develop other embodiments on this basis; any simple deformation and equivalent replacement that do not depart from the innovative concept of the present application are covered by the present application and belong to the protection scope of this patent.

Claims

1. A vertex angle sharpener, characterized in that: It comprises a blade fixing mechanism (10) and a rotating mechanism (20); The blade fixing mechanism (10) comprises a fixing frame (110), a driving shaft (120), a left clamping block (130), and a right clamping block (140); The drive shaft (120) is provided with a left clamping block threaded portion (1210) and a right clamping block threaded portion (1220), and the left clamping block threaded portion (1210) and the right clamping block threaded portion (1220) have opposite rotation directions; The left clamping block (130) is provided with a left clamping block threaded matching hole (1340), and the right clamping block (140) is provided with a right clamping block threaded matching hole; The drive shaft (120) is hinged on the fixing frame (110); the left clamping block (130) is assembled on the drive shaft (120) by means of the left clamping block threaded fitting hole (1340) and the left clamping block threaded portion (1210); and the right clamping block (140) is assembled on the drive shaft (120) by means of the right clamping block threaded fitting hole and the right clamping block threaded portion (1220); The rotating mechanism (20) comprises a fixed shaft (210), a rotating drum (220), and a bearing seat (230); The fixed shaft (210) is assembled onto the fixed frame (110) via the bearing seat (230), and the rotating drum (220) is assembled onto the fixed shaft (210) and is rotatable on the fixed shaft (210).

2. The vertex angle sharpener according to claim 1, characterized in that: The left clamping block (130) comprises an upper left clamping block (1310), a lower left clamping block (1320), and a left clamping block screw (1330); The upper left clamping block (1310) is provided with a left positioning column (1311) and a left assembly hole (1312); The left lower clamping block (1320) is provided with a left positioning hole (1321) and a left screw hole (1322); The left positioning column (1311) can be embedded in different left positioning holes (1321) to adjust the tilt angle of the left upper clamping block (1310); The upper left clamp block (1310) and the lower left clamp block (1320) are fixedly connected by the cooperation of the left assembly hole (1312), the left screw hole (1322) and the left clamp block screw (1330), and the left clamp block threaded cooperation hole (1340) is provided on the lower left clamp block (1320); The right clamping block (140) comprises a right upper clamping block, a right lower clamping block, and a right clamping block screw; The right upper clamp block is provided with a right positioning column and a right assembly hole; The right lower clamp block is provided with a right positioning hole and a right screw hole; The right positioning column can be embedded in different right positioning holes to adjust the tilt angle of the right upper clamping block; The upper right clamp block and the lower right clamp block are fixedly connected by the cooperation of the right assembly hole, the right screw hole and the right clamp block screw, and the right clamp block threaded cooperation hole is arranged on the lower right clamp block.

3. The vertex angle sharpener according to claim 2, characterized in that: The upper left clamp block (1310) is also provided with a left nesting groove (1313), and the left nesting groove (1313) is arranged at the opening of the left assembly hole (1312); the lower left clamp block (1320) is also provided with a left nesting column (1323), and the left screw hole (1322) is arranged on the left nesting column (1323); the left nesting column (1323) is assembled in the left nesting groove (1313); The upper right clamp block is also provided with a right nesting groove, which is arranged at the notch portion of the right assembly hole; the lower right clamp block is also provided with a right nesting column, and the right screw hole is arranged on the right nesting column; the right nesting column is assembled in the right nesting groove.

4. The vertex angle sharpener according to claim 2, characterized in that: The number of the left positioning posts (1311) is two, and the two left positioning posts (1311) are symmetrically distributed on both sides of the left assembly hole (1312); The number of the left positioning holes (1321) is two rows, and the two rows of left positioning holes (1321) are symmetrically distributed on both sides of the left screw hole (1322), and each row of the left positioning holes (1321) is distributed along an arc; There are two right positioning posts, which are symmetrically distributed on both sides of the right assembly hole; The number of the right positioning holes is two rows, and the two rows of right positioning holes are symmetrically distributed on both sides of the right screw hole, and each row of the right positioning holes is distributed along an arc.

5. The vertex angle sharpener according to claim 1, characterized in that: The rotating mechanism (20) further comprises an eccentric shaft (240), the eccentric shaft (240) being provided with an eccentric shaft hole (2410), and the eccentric shaft (240) being fixedly assembled on the fixed shaft (210) through the eccentric shaft hole (2410); The rotating drum (220) is provided with a rotating drum shaft hole (2210), and the rotating drum (220) can be rotatably assembled on the eccentric shaft (240) through the rotating drum shaft hole (2210).

6. The vertex angle sharpener according to claim 5, characterized in that: The rotating mechanism (20) further comprises an adjusting component (260), and a positioning portion (2610) is provided on the adjusting component (260); The bearing seat (230) is provided with a positioning groove (2310); The fixed shaft (210) is fixedly connected to the adjusting component (260), and the positioning portion (2610) is arranged in the positioning groove (2310).

7. The vertex angle sharpener according to claim 5, characterized in that: The eccentric shaft (240) is also provided with a radial locking hole (2420). The eccentric shaft (240) is fixedly assembled with the fixed shaft (210) through the cooperation of the radial locking hole (2420) and the locking screw (270).

8. The vertex angle sharpener according to claim 1, characterized in that: The top angle sharpener further comprises a top pressing mechanism (30), wherein the top pressing mechanism (30) comprises a top frame (310), a pressing screw (320), and a presser (330), and a pressing screw hole (3110) is provided on the top frame (310); The top frame (310) is fixedly mounted on the fixing frame (110), the pressing screw (320) is mounted in the pressing screw hole (3110) by threaded engagement, and the pressing device (330) is fixedly mounted on the end of the pressing screw (320).

9. The vertex angle sharpener according to claim 1, characterized in that: The fixed frame (110) comprises a base frame (1110), a left end frame (1120), a left vertical frame (1130), a right end frame (1140), and a right vertical frame (1150); The left end frame (1120) and the right end frame (1140) are respectively fixedly mounted on the left and right sides of the base frame (1110), and the left vertical frame (1130) and the right vertical frame (1150) are respectively mounted on the left end frame (1120) and the right end frame (1140).

10. The vertex angle sharpener according to claim 1, characterized in that: The vertex angle sharpener further comprises a measuring mechanism (40), wherein the measuring mechanism (40) comprises a grinding angle measuring ruler (410); The fixing frame (110) is provided with a ruler slot (1160); The grinding angle measuring ruler (410) is provided with a sliding chuck (4110); The grinding angle measuring ruler (410) is assembled on the fixing frame (110) through the cooperation and sliding of the sliding clamp (4110) and the ruler clamping groove (1160).

Images