Center mechanism for tool sharpener

Abstract

The utility model relates to the technical field of apex mechanisms, in particular to an apex mechanism for a tool sharpener, which comprises a bottom plate, a supporting seat is arranged at the top end of the bottom plate, a groove is arranged at the top end of the supporting seat, a rotating shaft is arranged on the supporting seat, a rotating block is rotatably connected onto the rotating shaft, a vertical plate is arranged at the top end of the rotating block, and a vertical plate is arranged on the vertical plate. A connecting block is arranged on the vertical plate, an ejector pin is arranged on the connecting block, and a driving air cylinder for driving the rotating block to turn over is further arranged on the supporting seat; the driving air cylinder drives the driving plate to stretch out and draw back, the first limiting block and the second limiting block of the rotating block are matched with the driving plate, so that the vertical plate on the rotating block is switched between the vertical state and the horizontal state, when a long cutter needs to be polished, the driving air cylinder stretches out to enable the vertical plate to be vertically arranged, and at the moment, the ejector pin abuts against one end of the cutter; and the cutter can be stably placed during grinding, vibration of the cutter is prevented, the grinding precision is improved, and the machining efficiency of the cutter is improved.

Description

Technical Field

[0001] The utility model belongs to the field of top mechanisms, and in particular relates to a top mechanism for a knife sharpener. Background Art

[0002] During use, the existing knife sharpener will install the long strip tool that needs to be sharpened on the material table. Generally, the tool that needs to be sharpened is inserted horizontally on the material table, and then the grinding head grinds the tool. However, during the grinding process, the grinding head will produce a certain vibration to the tool when it is working. Especially when the tool is long, it is very likely to cause the tool to break during the working process. At the same time, the vibration of the tool may cause the grinding accuracy to decrease, which ultimately leads to the problem of low working efficiency of the knife sharpener. Therefore, it is necessary to design a top mechanism for the knife sharpener to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a top mechanism for a knife sharpener to solve the problem raised in the above background technology that when the knife sharpeners on the existing market are grinding knives, the long knives are not placed stably and will vibrate, thereby affecting the grinding accuracy and grinding efficiency.

[0004] In order to achieve the above object, the technical solution of the utility model is as follows:

[0005] A top mechanism for a knife sharpener comprises a base plate, a support seat is provided at the top of the base plate, a groove is provided at the top of the support seat, a rotating shaft is provided on the support seat, a rotating block is rotatably connected to the rotating shaft, a vertical plate is provided at the top of the rotating block, a vertical plate is provided on the vertical plate, a connecting block is provided on the vertical plate, a top pin is provided on the connecting block, and a driving cylinder for driving the rotating block to flip is also provided on the support seat.

[0006] As a further improvement to the utility model, a driving plate is fixed to the output end of the driving cylinder, and a first inclined surface is provided on the top end of the driving plate.

[0007] As a further improvement of the utility model, a first limit block and a second limit block are provided at the bottom end of the rotating block along the direction of movement of the driving cylinder, the first limit block is provided with a first inclined surface, the second limit block is provided with a second inclined surface, and movement space for the driving plate is left between the first limit block and the second limit block.

[0008] As a further improvement to the present invention, the height of the highest point of the driving plate is higher than the height of the lowest points of the first limiting block and the second limiting block.

[0009] As a further improvement to the present invention, the slope surface, the first slope surface and the second slope surface have the same inclination direction, and the slope of the second slope surface is the same as the slope of the slope surface.

[0010] As a further improvement to the present invention, a limit plate is further provided at the top of the support seat, the limit plate is arranged above the rotating block, and the position of the limit plate is staggered with the rotating shaft.

[0011] As a further improvement of the utility model, a vertical groove is provided on the vertical plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model drives the driving plate to extend and retract by driving the cylinder, and the first limit block and the second limit block of the rotating block cooperate with the driving plate to switch the vertical and horizontal states of the vertical plate on the rotating block. When it is necessary to grind a long tool, the driving cylinder extends to set the vertical plate vertically. At this time, the ejector pin abuts against one end of the tool, so that the tool can be stably placed during grinding, preventing the tool from vibrating, thereby enhancing the grinding accuracy and improving the processing efficiency of the tool.

[0014] The utility model reduces the resistance of the vertical plate during the flipping process by arranging vertical grooves on the vertical plate;

[0015] The utility model prevents the further upward turning tendency of the rotating block by installing a limit plate on the supporting seat, so that the vertical plate stands vertically on the supporting seat and more accurately supports one end of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the cylinder of the utility model when it is contracted;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model when the cylinder is extended;

[0020] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0021] The names represented by the part numbers in the above four schematic diagrams are as follows:

[0022] 1. Bottom plate;

[0023] 2. Support seat; 21. Groove; 22. Rotating shaft;

[0024] 3. Rotating block; 31. First limiting block; 32. Second limiting block; 33. First inclined plane; 34. Second inclined plane;

[0025] 4. Vertical plate; 41. Vertical groove;

[0026] 5. Connecting block; 51. Ejector pin;

[0027] 6. driving cylinder; 61. driving plate; 62. slope;

[0028] 7. Limit plate. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model provides the following embodiments:

[0031] A top mechanism for a knife sharpener, comprising a bottom plate 1, a support seat 2 is provided at the top of the bottom plate 1, a groove 21 is provided at the top of the support seat 2, a rotating shaft 22 is provided on the support seat 2, a rotating block 3 is rotatably connected to the rotating shaft 22, a vertical plate 4 is provided at the top of the rotating block 3, a vertical plate 4 is provided on the vertical plate 4, a connecting block 5 is provided on the vertical plate 4, a top pin 51 is provided on the connecting block 5, a driving cylinder 6 for driving the rotating block 3 to flip is also provided on the support seat 2, a driving plate 61 is fixed to the output end of the driving cylinder 6, a first inclined surface 33 is provided at the top of the driving plate 61, and the driving cylinder 6 moves in the groove 21;

[0032] A first limit block 31 and a second limit block 32 are provided at the bottom end of the rotating block 3 along the direction of movement of the driving cylinder 6, a first inclined surface 33 is provided on the first limit block 31, and a second inclined surface 34 is provided on the second limit block 32, and a movement space of the driving plate 61 is reserved between the first limit block 31 and the second limit block 32; the height of the highest point of the driving plate 61 is higher than the height of the lowest point of the first limit block 31 and the second limit block 32, and the driving plate 61 can hook the first limit block 31 when contracted, so that the rotating block 3 can rotate following the contraction of the driving cylinder 6; the slope 62, the first inclined surface 33 and the second inclined surface 34 have the same inclination direction, and the slope of the second inclined surface 34 is the same as that of the slope 62, and when the driving cylinder 6 is extended and the vertical plate 4 is in an upright state, the slope 62 just fits with the second inclined surface 34;

[0033] A limit plate 7 is also provided at the top of the support seat 2. The limit plate 7 is arranged above the rotating block 3. The limit plate 7 is staggered with the rotating shaft 22. The staggered setting of the limit plate 7 does not affect the downward rotation of the rotating block 3. The limit plate 7 can block the further upward turning trend of the rotating block 3, so that the vertical plate 4 stands vertically on the support seat and more accurately resists one end of the tool.

[0034] A vertical groove 41 is provided on the vertical plate 4, so as to reduce the resistance of the vertical plate 4 during the flipping process, making the flipping of the vertical plate 4 smoother, thereby improving the work efficiency;

[0035] Working principle: When not processing long tools, the driving cylinder 6 is in a retracted state, and the vertical plate 4 is like Figure 2 In the horizontal state shown, when processing a longer tool, the driving cylinder 6 is extended, and the driving plate 61 supports the second limit block 32, so that the vertical plate 4 rotates upward with the rotation axis as the center. When the slope 62 and the second inclined surface 34 are just in contact, the vertical plate 4 is in an upright state, and then the limit plate 7 blocks the rotating block 3 to prevent the rotating block 3 from continuing to rotate. At this time, the ejector pin 51 just contacts the other end of the tool to place the tool stably. When there is no need to process a long tool, the driving cylinder 6 is retracted. At this time, the driving plate 61 is in contact with the first limit block 31, driving the rotating block 3 to rotate downward with the rotation axis as the center, and finally returning the vertical plate 4 to a horizontal state.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A top mechanism for a knife sharpener, comprising a bottom plate (1), characterized in that A support seat (2) is provided at the top of the bottom plate (1), a groove (21) is provided at the top of the support seat (2), a rotating shaft (22) is provided on the support seat (2), a rotating block (3) is rotatably connected to the rotating shaft (22), a vertical plate (4) is provided at the top of the rotating block (3), a vertical plate (4) is provided on the vertical plate (4), a connecting block (5) is provided on the vertical plate (4), a top pin (51) is provided on the connecting block (5), and a driving cylinder (6) for driving the rotating block (3) to flip is also provided on the support seat (2).

2. The top mechanism for a knife sharpener according to claim 1, characterized in that: A driving plate (61) is fixed to the output end of the driving cylinder (6), and a slope (62) is provided on the top of the driving plate (61).

3. The top mechanism for a knife sharpener according to claim 2, characterized in that: A first limit block (31) and a second limit block (32) are provided at the bottom end of the rotating block (3) along the direction of movement of the driving cylinder (6); a first inclined surface (33) is provided on the first limit block (31); a second inclined surface (34) is provided on the second limit block (32); and a movement space for the driving plate (61) is reserved between the first limit block (31) and the second limit block (32).

4. The top mechanism for a knife sharpener according to claim 3, characterized in that: The height of the highest point of the driving plate (61) is higher than the height of the lowest points of the first limiting block (31) and the second limiting block (32).

5. The top mechanism for a knife sharpener according to claim 4, characterized in that: The slope surface (62), the first slope surface (33) and the second slope surface (34) have the same inclination direction, and the slope of the second slope surface (34) is the same as the slope of the slope surface (62).

6. The top mechanism for a knife sharpener according to claim 5, characterized in that: A limit plate (7) is also provided at the top of the support seat (2), and the limit plate (7) is arranged above the rotating block (3), and the position of the limit plate (7) and the rotating shaft (22) are staggered.

7. The top mechanism for a knife sharpener according to claim 6, characterized in that: The vertical plate (4) is provided with a vertical groove (41).

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