Single-drive simple fixed-angle knife sharpener

Abstract

The utility model belongs to the technical field of woodworking tools, and particularly relates to a single-drive simple fixed-angle knife sharpener. The clamping device comprises a fixed clamping block, a movable clamping block, a driving rod, a guide rod, a fixed clamping block roller, a movable clamping block roller and an adjusting assembly. According to the single-drive simple fixed-angle knife sharpener disclosed by the invention, a double-drive scheme of the left clamping block and the right clamping block is improved into a single-drive scheme formed by the fixed clamping block and the movable clamping block, so that the structural stability of the knife sharpener is improved; and meanwhile, the influence of a button on the blade grinding process can be avoided through the adjustable button assembly.

Description

Technical Field

[0001] This application belongs to the field of woodworking tool technology, specifically relating to a single-drive simplified fixed-angle grinder. Background Technology

[0002] Please refer to Chinese patent application: A Point Angle Sharpener [Publication No.: CN118752322A]. This disclosed point angle sharpener not only clamps or releases the workpiece via the rotation of the drive shaft, but also accommodates irregularly shaped cutting tools through the inclined installation between the upper and lower clamping blocks. Furthermore, it allows adjustment of the rotation height of the rotating drum via a fixed shaft and an eccentric shaft. While this sharpener is feature-rich, it has numerous components and a relatively complex structure. Moreover, due to the dual-drive scheme of the left and right clamping blocks, although the efficiency of clamping the cutting tool is high, the structural stability is limited. Utility Model Content

[0003] In view of this, this application provides a single-drive simplified fixed-angle grinder to solve all or part of the technical problems described in the background section of this application.

[0004] The innovative idea of ​​this application is to improve the dual-drive scheme of left and right clamping blocks into a single-drive scheme formed by fixed clamping blocks and moving clamping blocks to increase structural stability; at the same time, an adjustable button assembly is used to avoid the button affecting the blade grinding process.

[0005] The solution proposed in this application to solve its technical problem is as follows:

[0006] A simplified single-drive fixed-angle grinder includes a fixed clamping block, a movable clamping block, and a drive rod; one end of the drive rod is housed within the fixed clamping block, and the drive rod can rotate within the fixed clamping block; the movable clamping block is connected to the drive rod via a threaded drive; when the drive rod rotates, it can cause the movable clamping block to move closer to or away from the fixed clamping block.

[0007] Preferably, the single-drive simplified fixed-angle grinder also includes guide rods; the guide rods are fixed on the fixed clamping block, and the movable clamping block is movably mounted on the guide rods. Further, there are two guide rods, symmetrically arranged on both sides of the drive rod.

[0008] Preferably, the part of the drive rod used to drive the movable clamping block is provided with an external thread; the movable clamping block is provided with a matching threaded hole; the movable clamping block is provided on the drive rod through the meshing connection of the external thread and the internal thread.

[0009] Preferably, the corresponding parts of the fixed clamping block and the movable clamping block are provided with clamping grooves; the single-drive simplified fixed angle grinder also includes a fixed clamping bar and a movable clamping bar; the fixed clamping bar and the movable clamping bar are respectively fixed in the clamping grooves on the fixed clamping block and the movable clamping block.

[0010] Preferably, both the fixed clamping block and the moving clamping block are provided with roller mounting positions; the single-drive simplified version of the fixed angle grinder also includes a fixed clamping block roller and a moving clamping block roller; the fixed clamping block roller and the moving clamping block roller are respectively arranged in the roller mounting positions on the fixed clamping block and the moving clamping block.

[0011] Preferably, both the fixed clamping block roller and the movable clamping block roller include a roller body; a roller shaft hole is provided in the middle part of the roller body, and a plurality of roller hoop grooves are provided on the outer surface of the roller body, with roller hoops provided in the roller hoop grooves.

[0012] Preferably, the roller assembly position includes an outer roller groove, an inner roller groove, and a roller assembly wall; the outer roller groove and the inner roller groove are located on both sides of the roller assembly wall; the roller assembly wall is provided with roller assembly holes; the fixed clamping block roller and the movable clamping block roller are both arranged in the outer roller groove and / or the inner roller groove through the cooperation of the shaft component and the roller shaft hole and the roller assembly hole.

[0013] Preferably, the single-drive simplified fixed-angle grinder also includes an adjustment component; the adjustment component includes a knob, a synchronizing element, an elastic element, and a locking element; one end of the drive rod, which is housed in the fixed clamping block, is provided with a locking hole; one end of the locking element is threaded into the locking hole, and the knob and the synchronizing element are sequentially fitted onto the locking element from the outside to the inside.

[0014] Preferably, the drive rod has a waist-shaped head at one end housed in the fixed clamping block; the synchronizing member has a waist-shaped groove on the side for connecting the drive rod; the synchronizing member has several synchronizing grooves on the side for connecting the knob; the knob has several locking parts on the side for connecting the synchronizing member; the waist-shaped head is located in the waist-shaped groove, and the locking parts are located in the synchronizing groove.

[0015] Preferably, the side of the synchronizing element used to connect the knob is provided with an embedding groove; a plurality of synchronizing grooves are provided on the groove body of the embedding groove; the side of the knob used to connect the synchronizing element is provided with an embedding part; a plurality of locking parts are provided around the embedding part.

[0016] Preferably, the fixed clamping block and / or the movable clamping block are further provided with a roller compartment; the roller compartment is used to store spare rollers.

[0017] Beneficial technical effects:

[0018] 1. The dual-drive scheme of the left and right clamping blocks is improved into a single-drive scheme consisting of a fixed clamping block and a moving clamping block, which increases the structural stability of the sharpener and the stability of the blade clamping.

[0019] 2. The use of easily replaceable left and right clamps extends the service life of the equipment and simplifies maintenance and replacement.

[0020] 3. Roller compartments are provided on the moving clamping block and / or the fixed clamping block to store spare rollers for customer convenience.

[0021] 4. The roller assembly position is equipped with both outer and inner roller grooves. Through different assembly combinations of moving clamping block rollers and fixed clamping block rollers, three rolling widths (large, medium, and small) are provided to adapt to whetstones of different widths.

[0022] 5. Use an adjustable knob assembly to avoid the knob obstructing the blade sharpening process.

[0023] The technical solution and technical effects of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0024] Figure 1 : Schematic diagram of the three-dimensional structure of a single-drive simplified fixed-angle grinder;

[0025] Figure 2 : A schematic diagram illustrating the usage status of a single-drive, simplified fixed-angle tool grinder;

[0026] Figure 3 : First-person perspective exploded view of the single-drive simplified fixed-angle grinder;

[0027] Figure 4 : Second-view exploded view of the single-drive simplified fixed-angle grinder;

[0028] Icon description:

[0029] 1-Fixed clamping block, 11-Clamping bar groove, 12-Roller assembly position, 13-Roller compartment;

[0030] 121-Roller outer groove, 122-Roller inner groove, 123-Roller mounting wall, 124-Roller mounting hole;

[0031] 2-Moving clamping block;

[0032] 3-Drive rod, 31-Locking hole, 32-Oval head;

[0033] 4-Guide rod;

[0034] 5-Fixed clamping bar;

[0035] 6-Moving clamp bar;

[0036] 7-Fixed clamping block roller, 71-Roller body, 72-Roller shaft hole, 73-Roller hoop groove, 74-Roller hoop;

[0037] 8-Moving clamping block roller;

[0038] 9-Adjustment components;

[0039] 91-Knob, 92-Synchronizer, 93-Elastic component, 94-Locking component;

[0040] 911 - Positioning part, 912 - Embedding part;

[0041] 921 - Waist-shaped groove, 922 - Synchronization groove, 923 - Embedding groove. Detailed Implementation

[0042] Please see Figures 1-4 The single-drive simplified fixed-angle grinder provided in this application includes a fixed clamping block 1, a movable clamping block 2, and a drive rod 3.

[0043] The drive rod 3 is provided with an external thread, and the movable clamping block 2 is provided with a threaded hole. The movable clamping block 2 is movably mounted on the drive rod 3 through the threaded transmission connection between its own threaded hole and the external thread on the drive rod 3.

[0044] The fixed clamping block 1 is provided with an assembly hole, and one end of the drive rod 3 is accommodated in the assembly hole and can rotate freely within the fixed clamping block 1.

[0045] The rotating drive rod 3 can move the moving clamp 2 closer to or away from the fixed clamp 1, thereby clamping or releasing the blade.

[0046] In existing single-drive simplified fixed-angle sharpeners, the left and right clamping blocks hold the cutting blades via inclined grooves (left and right clamping blocks, respectively), which suffers from easy wear and inconvenient maintenance. In this application, the fixed clamping block 1 and the movable clamping block 2 each have corresponding clamping grooves 11, within which a fixed clamping bar 5 and a movable clamping bar 6 are fixed. During implementation, the fixed clamping bar 5 and the movable clamping bar 6 can be made of more wear-resistant materials to extend their service life. After long-term wear, quick maintenance can be achieved by replacing the fixed clamping bar 5 and the movable clamping bar 6.

[0047] To increase the smoothness of the movement of the movable clamping block 2, the single-drive simplified fixed-angle grinder also includes two guide rods 4. The two guide rods 4 are symmetrically arranged on both sides of the drive rod 3. Guide rod mounting holes are provided at corresponding positions on the fixed clamping block 1 and the movable clamping block 2. One end of the two guide rods 4 is fixed in the guide rod mounting hole on the fixed clamping block 1, and the movable clamping block 2 is slidably connected to the guide rod 4 through its guide rod mounting hole.

[0048] The single-drive simplified fixed-angle grinder also includes a fixed clamping block roller 7 and a movable clamping block roller 8. As the names suggest, the fixed clamping block roller 7 and the movable clamping block roller 8 are respectively mounted on the fixed clamping block 1 and the movable clamping block 2. The fixed clamping block roller 7 and the movable clamping block roller 8 have the same structure and connection, both including a roller body 71; a roller shaft hole 72 is provided in the middle part of the roller body 71, and several roller hoop grooves 73 are provided on the outer surface of the roller body 71, with roller hoop 74 installed in the roller hoop grooves 73. The roller hoop 74 is made of wear-resistant plastic material to extend service life and reduce grinding noise.

[0049] Existing single-drive simplified fixed-angle grinders use an integrated rotating mechanism consisting of a fixed shaft, rotating drum, bearing housing, and eccentric shaft. While this mechanism allows for adjustment of the rolling height, the drum's length is fixed, meaning the rolling width cannot be adjusted according to the width of the whetstone during grinding. When the whetstone is narrow, using a drum mechanism with a rolling width exceeding the whetstone's width can easily cause the grinding force to deviate from the center of the blade.

[0050] The fixed clamping block 1 and the movable clamping block 2 disclosed in this application are both provided with roller assembly positions 12; the roller assembly position 12 includes an outer roller groove 121, an inner roller groove 122, and a roller assembly wall 123; the outer roller groove 121 and the inner roller groove 122 are respectively located on both sides of the roller assembly wall 123; the roller assembly wall 123 is provided with roller assembly holes 124.

[0051] The fixed clamping block roller 7 and the movable clamping block roller 8 are arranged in the outer groove 121 and / or the inner groove 122 of the roller through the cooperation of the shaft component, the roller shaft hole 72, and the roller assembly hole 124.

[0052] Both the fixed clamping block roller 7 and the movable clamping block roller 8 can be set in the outer groove 121 or the inner groove 122 of the roller. This allows for three assembly schemes: "outer groove + outer groove", "outer groove + inner groove", and "inner groove + inner groove", resulting in three rolling widths: longer, moderate, and shorter, flexibly adapting to whetstones of different widths.

[0053] The fixed clamping block 1 and / or the movable clamping block 2 are also provided with a roller compartment 13; the roller compartment 13 is used to store spare rollers for easy replacement after wear.

[0054] To facilitate operation of the drive lever 3, the single-drive simplified fixed-angle sharpener also includes an adjustment component 9. The adjustment component 9 includes a knob 91, a synchronizing element 92, an elastic element 93, and a locking element 94.

[0055] The drive rod 3 is housed in the fixed clamp block 1 and has a locking hole 31 and a waist-shaped head 32 at one end; the locking hole 31 is a screw hole and is located in the middle of the waist-shaped head 32.

[0056] The locking element 94 has an external thread at one end and a nut at the other end. The locking element 94 is threaded into the locking hole 31. The knob 91 and the synchronizing element 92 are sequentially fitted onto the locking element 94 from the outside to the inside. The elastic element 93 is disposed in the knob 91 and the synchronizing element 92, and its two ends abut against the drive rod 3 and the nut of the locking element 94, respectively.

[0057] The synchronizing component 92 has a waist-shaped groove 921 on one side for connecting the drive rod 3 and an embedding groove 923 on the other side for connecting the knob 91. The embedding groove 923 has several synchronizing grooves 922 on its groove body.

[0058] The knob 91 has an insert 912 on one side for connecting the synchronizing element 92, and several locking parts 911 distributed around the insert 912.

[0059] The waist-shaped head 32 is disposed in the waist-shaped groove 921, the embedding part 912 is disposed in the embedding groove 923, and the locking part 911 is disposed in the synchronization groove 922.

[0060] The knob 91 has a cuboid structure, and the synchronizing element 92 has a cylindrical structure; both the knob 91 and the synchronizing element 92 have through holes in the middle, and the locking element 94 is connected to the locking hole 31 on the drive rod 3 through the middle through holes on the knob 91 and the synchronizing element 92.

[0061] When the rectangular knob 91 is in the horizontal position, its vertical dimension is at its smallest, thus preventing the knob from obstructing the grinding process. When the rectangular knob 91 is in the vertical position, its vertical dimension is at its largest, and in different working environments, the obstruction caused by the knob 91 may affect the grinding process.

[0062] Because the blades to be ground have different widths, after clamping the blades between the fixed clamping block 1 and the movable clamping block 2, the knob 91 may not be in a horizontal or vertical position. To avoid the knob 91 affecting the grinding process due to obstruction, the knob 91 needs to be adjusted to a horizontal position.

[0063] Implementation principle and technical effects:

[0064] Tighten the locking member 94 into the locking hole 31. The synchronizing member 92 and the knob 91 are pressed sequentially against the end of the drive rod 3, at which point the elastic member 93 is compressed. Rotating the knob 91 can drive the synchronizing member 92, the elastic member 93, the locking member 94, and the drive rod 3 to rotate synchronously, thereby allowing the moving clamp 2 to move closer to or away from the fixed clamp 1 by rotating the knob 91. When it is necessary to adjust the state of the knob, loosen the locking member 94, and the elastic member 93 extends and returns to its original position. At this time, the insert 912 and the locking part 911 on the knob 91 can be pulled out from the insert groove 923 and the synchronous groove 922 on the synchronizing member 92, respectively. After adjusting the knob 91 to a horizontal position, push the insert 912 into the insert groove 923, and at the same time, let the locking part 911 be inserted into the appropriate synchronous groove 922.

[0065] The existing fixed-angle whetstone drive knob adopts a cylindrical structure. During the blade grinding process, the grinding process may be affected by obstruction in certain working environments. This application adopts adjustment component 9, which can not only complete the clamping or loosening operation of the whetstone, but also prevent the knob from affecting the blade grinding process due to obstruction by adjusting the state of knob 91.

[0066] The technical solutions and effects of this application have been described in detail above with reference to the accompanying drawings and specific embodiments. It should be noted that those skilled in the art can develop other embodiments based on this. Any simple modifications and equivalent substitutions that do not depart from the innovative concept of this application are covered by this application and fall within the protection scope of this patent.

Claims

1. A single drive simple version of fixed angle sharpener, characterized in that: comprising a fixed clamp block (1), a movable clamp block (2), a drive rod (3); one end of the drive rod (3) is contained in the fixed clamp block (1), the drive rod (3) can rotate in the fixed clamp block (1); the movable clamp block (2) is arranged on the drive rod (3) through threaded transmission connection; the drive rod (3) can make the movable clamp block (2) approach or leave the fixed clamp block (1) when rotating. 2.According to claim 1, the single drive simple version of fixed angle sharpener, characterized in that: the single drive simple version of fixed angle sharpener further comprises a guide rod (4); the guide rod (4) is fixed on the fixed clamp block (1), and the movable clamp block (2) is movably arranged on the guide rod (4). 3.According to claim 1, the single drive simple version of fixed angle sharpener, characterized in that: the corresponding parts of the fixed clamp block (1) and the movable clamp block (2) are provided with clamp strip grooves (11); the single drive simple version of fixed angle sharpener further comprises a fixed clamp strip (5) and a movable clamp strip (6); the fixed clamp strip (5) and the movable clamp strip (6) are respectively fixed in the clamp strip grooves (11) on the fixed clamp block (1) and the movable clamp block (2). 4.According to claim 1, the single drive simple version of fixed angle sharpener, characterized in that: the fixed clamp block (1) and the movable clamp block (2) are respectively provided with roller assembly positions (12); the single drive simple version of fixed angle sharpener further comprises a fixed clamp block roller (7) and a movable clamp block roller (8); the fixed clamp block roller (7) and the movable clamp block roller (8) are respectively arranged in the roller assembly positions (12). 5.According to claim 4, the single drive simple version of fixed angle sharpener, characterized in that: the fixed clamp block roller (7) and the movable clamp block roller (8) each comprise a roller body (71); the middle part of the roller body (71) is provided with a roller shaft hole (72), and the outer surface of the roller body (71) is provided with a plurality of roller hoop grooves (73), and the roller hoop grooves (73) are provided with roller hoops (74). 6.According to claim 4, the single drive simple version of fixed angle sharpener, characterized in that: the roller assembly position (12) comprises a roller outer groove (121), a roller inner groove (122) and a roller assembly wall (123); the roller outer groove (121) and the roller inner groove (122) are respectively located on the two sides of the roller assembly wall (123); the roller assembly wall (123) is provided with a roller assembly hole (124); the fixed clamp block roller (7) and the movable clamp block roller (8) are arranged in the roller outer groove (121) and / or the roller inner groove (122) through the cooperation of the shaft part, the roller shaft hole (72) and the roller assembly hole (124). 7.According to claim 1, the single drive simple version of fixed angle sharpener, characterized in that: the fixed clamp block (1) and / or the movable clamp block (2) are further provided with a roller warehouse (13); the roller warehouse (13) is used for storing spare rollers. 8.According to claim 1, the single drive simple version of fixed angle sharpener, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The single-drive concise version fixed-angle knife sharpener further comprises an adjusting assembly (9); The adjusting assembly (9) comprises a knob (91), a synchronizer (92), an elastic member (93), and a locking member (94); One end of the driving rod (3) accommodated in the clamping block (1) is provided with a locking hole (31); One end of the locking member (94) is threadedly fitted in the locking hole (31), and the knob (91) and the synchronizer (92) are sequentially sleeved on the locking member (94) from outside to inside.

9. The single-drive concise version fixed-angle knife sharpener according to claim 8, wherein: One end of the driving rod (3) accommodated in the clamping block (1) is provided with a waist-shaped head (32); The synchronizer (92) is provided with a waist-shaped groove (921) on one side for connecting the driving rod (3); The synchronizer (92) is provided with a plurality of synchronizer grooves (922) on one side for connecting the knob (91); The knob (91) is provided with a plurality of clamping portions (911) on one side for connecting the synchronizer (92); The waist-shaped head (32) is arranged in the waist-shaped groove (921), and the clamping portions (911) are arranged in the synchronizer grooves (922).

10. The single-drive concise version fixed-angle knife sharpener according to claim 9, wherein: The synchronizer (92) is provided with an embedding groove (923) on one side for connecting the knob (91); A plurality of the synchronizer grooves (922) are arranged on the groove body of the embedding groove (923); The knob (91) is provided with an embedding portion (912) on one side for connecting the synchronizer (92); A plurality of the clamping portions (911) are arranged around the embedding portion (912).

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