Cutter structure and cutting machine feed system

Abstract

The invention discloses a cutter structure, wherein a knife support plate and a knife pressing plate hold a cutter blade, and the position of the cutter blade is just to expose a reasonable length of the blade of the cutter blade, the upper end of the adjustment plate is fixed to the rear of the knife pressing plate, and the lower end is connected to the rear of the knife support plate; when it is necessary to adjust the protruding length of the front end of the cutter blade, it is only necessary to loosen the first bolt and the second bolt, and turn the adjustment bolt to increase the length of the front end of the adjustment bolt protruding forward from the adjustment plate. Since the middle of the knife pressing plate and the middle of the knife support plate are both front and rear long waist-shaped holes, the adjustment plate will drive the knife pressing plate and the knife support plate to retreat, so that the protruding length of the front end of the cutter blade becomes longer, and the extension length of the cutter is adjusted. The cutter structure can adjust the extension length of the cutter blade within a reasonable range by adjusting the retreating knife pressing plate and the knife support plate, and is convenient to adjust, simple in structure, easy to process, manufacture and install, and low in maintenance cost. The invention also discloses a shredder feed system including the cutter structure. The invention can meet the needs of experimental line shredders for the research and development of new cigarette products of cigarette enterprises.

Description

Technical Field

[0001] The invention relates to tobacco processing machinery, in particular to a cutter structure for an experimental wire cutter and a cutter feed system for the cutter. Background Art

[0002] At present, the shredders commonly used in the experimental lines of domestic and foreign cigarette companies are realized by shortening the width of the blade of the conventional shredder. The blade head structure and feed system of this type of shredder have complex mechanical structures, high manufacturing precision, inconvenient installation, and high maintenance costs, which make it difficult to meet the research and development needs of new cigarette products. Summary of the invention

[0003] The technical problem to be solved by the present invention is to be able to meet the needs of cigarette companies for experimental line shredders for the research and development of new cigarette products, and the invention has convenient adjustment, simple structure, easy processing, manufacturing and installation, and low maintenance cost.

[0004] In order to solve the above technical problems, the present invention provides a cutter structure, which includes a fixed block 20, a cutter blade 101, a cutter pressing plate 102, a cutter supporting plate 103, an adjusting plate 104 and an adjusting bolt 105;

[0005] The fixing block 20 is a cuboid;

[0006] The upper side surface of the front portion of the fixing block 20 is concave to form a slot 201;

[0007] The cutting blade 101 is rectangular, and the front end is a cutting edge;

[0008] The rear portion of the cutting blade 101 is fixed to the slot 201 of the fixing block 20;

[0009] The first bolt 106 passes through the front and rear long waist-shaped holes in the middle of the knife pressing plate 102 and is threadedly engaged with the first screw hole 203 formed on the upper rear side of the fixing block 20 to fix the middle of the knife pressing plate 102 to the upper rear side of the fixing block 20;

[0010] The second bolt 107 passes through the front and rear long waist-shaped holes in the middle of the knife support plate 103 and is threadedly engaged with the second screw hole 204 formed on the lower rear side of the fixing block 20 to fix the middle of the knife support plate 103 to the lower rear side of the fixing block 20;

[0011] The front portion of the knife pressing plate 102 is pressed against the upper side of the cutting blade 101;

[0012] The front portion of the blade support plate 103 is pressed against the lower side of the cutting blade 101;

[0013] The front end of the cutting blade 101 can be extended to the front side of the knife pressing plate 102 and the knife supporting plate 103;

[0014] An adjustment plate 104 is vertically fixed to the lower side of the rear portion of the knife pressing plate 102;

[0015] The lower end of the adjusting plate 104 is connected to the rear portion of the knife supporting plate 103;

[0016] The adjustment plate 104 is provided with a third screw hole;

[0017] The adjusting bolt 105 is threadedly coupled and fixed to the adjusting plate 104 through the third screw hole, and the front end of the adjusting bolt 105 can abut against the rear side of the fixing block 20 .

[0018] Preferably, a protrusion 1031 is formed on the upper side of the rear portion of the blade supporting plate 103;

[0019] The lower end of the adjustment plate 104 is located between the protrusion 1031 and the rear side of the fixing block 20;

[0020] Twisting the adjusting bolt 105 increases the length of the front end of the adjusting bolt 105 protruding forward from the adjusting plate 104, so that the front end of the adjusting bolt 105 can be pressed against the rear side of the fixing block 20, and the rear side of the lower end of the adjusting plate 104 can be pressed against the front side of the protrusion 1031, so that the lower end of the adjusting plate 104 is connected to the rear of the knife support plate 103.

[0021] Preferably, a limiting groove 1032 is formed on the upper side surface of the rear portion of the blade supporting plate 103 adjacent to the front side of the protrusion 1031;

[0022] The front-to-back thickness of the lower end of the adjustment plate 104 is smaller than the front-to-back length of the limiting groove 1032;

[0023] The lower end of the adjusting plate 104 is located in the limiting groove 1032 , so that the lower end of the adjusting plate 104 is connected to the rear part of the knife supporting plate 103 .

[0024] Preferably, the portion of the cutting blade 101 fixed to the slot 201 of the fixing block 20 is 2 / 7 to 3 / 7 of the total front-to-back length of the cutting blade 101 .

[0025] Preferably, a third screw hole 202 is formed at the slot 201 on the upper side of the front portion of the fixing block 20;

[0026] The rear portion of the cutting blade 101 is fixed to the slot 201 of the fixing block 20 by means of a countersunk screw in cooperation with the third screw hole 202 .

[0027] Preferably, a disc-shaped spring piece 108 is provided on the screw sleeve between the head of the first bolt 106 and the second bolt 107 and the fixing block 20 .

[0028] In order to solve the above technical problems, the present invention provides a shredder feed system including the above-mentioned cutter structure, wherein the shredder feed system also includes a cutter disc base 2;

[0029] The cutter disc base 2 is in the shape of a circular plate;

[0030] At least two rectangular holes 21 are evenly arranged around the axis on the cutter disc base 2;

[0031] A cutting structure 1 is installed in each rectangular hole 21;

[0032] The left and right ends of the fixing block 20 of the cutter structure 1 are respectively fixed to the distal axial side wall and the proximal axial side wall of the rectangular hole 21, and the fixing block 20 forms an angle of 3° to 30° with the cutter disc base 2, and the front end of the cutting blade 101 can protrude to the front side of the cutter disc base 2.

[0033] Preferably, the fixing block 20 is integrally formed with the cutter disc base 2 and fixed together.

[0034] Preferably, the feed system of the wire cutter further comprises a cutter drive device 3, a connecting frame 4, a slide block 5, a guide rail 6, a locker 7, a feed drive device 9, and a base 16;

[0035] The cutter drive device 3 is used to drive the cutter disc base 2 to rotate around the axis;

[0036] The cutter drive device 3 is fixed on the connecting frame 4;

[0037] The lower end of the connecting frame 4 is connected and fixed to the slider 5;

[0038] The slider 5 is mounted on the guide rail 6 and can move forward and backward along the guide rail 6;

[0039] The guide rail 6 and the feed drive device 9 are both mounted and fixed on the base 16;

[0040] The driving rod of the feed driving device 9 is connected to the connecting frame 4;

[0041] The locking device 7 is connected to the connecting frame 4;

[0042] The locker 7 is of pneumatically controlled normally closed type. When in working state, the solenoid valve is controlled to close the compressed air, the locker 7 locks the guide rail 6, and the connecting seat frame 4 is fixed, thereby achieving fixed position of the cutter drive device 3; when feed adjustment is required, the solenoid valve is controlled to open the compressed air, the locker 7 is ventilated and opened, and the locking is invalid.

[0043] Preferably, the shredder feed system further includes a displacement detector 12, a cutter head detection sensor 14 and a controller;

[0044] The displacement detector 12 is arranged on the base 16 and is used to detect the feeding distance of the connecting frame 4 driven by the feeding drive device 9;

[0045] The cutter head detection sensor 14 is arranged at the front side of the cutter disc base 2, and is used to detect whether the front end of the cutting blade 101 of the cutter structure 1 on the cutter disc base 2 protrudes to the set position at the front side of the cutter disc base 2;

[0046] The controller is used to control the feed set distance of the drive rod of the feed drive device 9; and if the feed distance of the connecting bracket 4 detected by the displacement detector 12 is consistent with the set distance, and the tool head detection sensor 14 detects that the front end of the cutting blade 101 of the cutter structure 1 on the cutter disc base 2 protrudes to the set position on the front side of the cutter disc base 2, then the output cutting start signal controls the cutter drive device 3 to start working, driving the cutter disc base 2 to rotate around the axis.

[0047] Preferably, the tool head detection sensor 14 is mounted and fixed on the third bracket 15;

[0048] The third bracket 15 is fixed on the wall panel;

[0049] The base 16 is fixed on the ground;

[0050] The wall panel is vertically fixed to the ground and can move up and down;

[0051] The feed drive device 9 is fixed on the base 16 via the first bracket 11;

[0052] The displacement detector 12 is mounted and fixed on the base 16 via the second bracket 13;

[0053] The driving rod of the feed driving device 9 is connected to the connecting frame 4 through the first connecting block 10;

[0054] The locking device 7 is connected to the connecting bracket 4 via a second connecting block 8 .

[0055] Preferably, the cutter drive device 3 includes a drive shaft 301, a bearing seat 302, a tapered roller bearing 303, a coupling 304, and a reducer 305;

[0056] The drive shaft 301 is fixed to the central axis of the cutter head base 2 by a spline connection;

[0057] The bearing seat 302 is installed on the connecting seat frame 4;

[0058] A pair of tapered roller bearings 303 are mounted in the bearing seat 302;

[0059] The drive shaft 301 is axially mounted and positioned by the pair of tapered roller bearings 303, and the pair of tapered roller bearings 303 are relatively mounted to bear the radial load of the cutter disc base 2;

[0060] The reducer 305 is installed on the connecting frame 4 and is connected to the driving shaft 301 through the coupling 304 to realize the rotation movement of the cutter disc base 2.

[0061] The cutter structure of the present invention has a support plate 103 and a pressure plate 102 that hold the cutter blade 101, and the position of the support plate 103 and the pressure plate 102 just exposes the blade of the cutter blade 101 to a reasonable length. The upper end of the adjustment plate 104 is fixed to the rear of the pressure plate 102, and the lower end is connected to the rear of the support plate 103. When it is necessary to adjust the protruding length of the front end of the cutter blade 101, it is only necessary to loosen the first bolt 106 and the second bolt 107, and turn the adjustment bolt 105 to increase the length of the front end of the adjustment bolt 105 protruding forward from the adjustment plate 104. Since the middle part of the pressure plate 102 and the middle part of the support plate 103 are both front and rear long waist-shaped holes, the adjustment plate 104 will drive the pressure plate 102 and the support plate 103 to retreat, so that the protruding length of the front end of the cutter blade 101 becomes longer, thereby realizing the adjustment of the protruding length of the cutter. The cutter structure 1 can adjust the extension length of the cutter blade 101 within a reasonable range by adjusting the backward pressure plate 102 and the support plate 103. The adjustment is convenient, the structure is simple, and the processing, manufacturing, and installation are easy, and the maintenance cost is low. The cutter structure 1 and the cutter feed system of the present invention can meet the needs of the experimental line cutter for the research and development of new cigarette products of cigarette enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 is a cross-sectional view of an embodiment of a cutter structure of the present invention;

[0064] Figure 2 It is a front perspective view of an embodiment of a cutting machine feed system of the present invention;

[0065] Figure 3 It is a left side view of an embodiment of a cutting machine feed system of the present invention;

[0066] Figure 4 It is a schematic diagram of a cutter driving device of an embodiment of a cutter feed system of a wire cutter of the present invention.

[0067] Description of reference numerals:

[0068] 1 Cutter structure; 101 Cutter blade; 102 Cutter pressing plate; 103 Cutter supporting plate; 104 Adjustment plate; 105 Adjustment bolt; 106 First bolt; 107 Second bolt; 108 Disc spring; 1031 Bump; 1032 Limiting groove; 20 Fixing block; 201 Slot; 202 Third screw hole; 203 First screw hole; 204 Second screw hole; 2 Cutter disc base; 21 Rectangular hole; 3 Cutter drive device; 4 Connecting seat frame; 5 Slider; 6 Guide rail; 7 Locker; 9 Feed drive device; 16 Base; 12 Displacement detector; 14 Cutter head detection sensor; 15 Third bracket; 11 First bracket; 13 Second bracket; 10 First connecting block; 8 Second connecting block; 301 Driving shaft; 302 Bearing seat; 303 Tapered roller bearing; 304 coupling; 305 reducer. DETAILED DESCRIPTION

[0069] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] Embodiment 1, as Figure 1 As shown, the cutter structure 1 includes a fixed block 20, a cutter blade 101, a cutter pressing plate 102, a cutter supporting plate 103, an adjusting plate 104 and an adjusting bolt 105;

[0071] The fixing block 20 is a cuboid;

[0072] The upper side surface of the front portion of the fixing block 20 is concave to form a slot 201;

[0073] The cutting blade 101 is rectangular, and the front end is a cutting edge;

[0074] The rear portion of the cutting blade 101 is fixed to the slot 201 of the fixing block 20;

[0075] The first bolt 106 passes through the front and rear long waist-shaped holes in the middle of the knife pressing plate 102 and is threadedly engaged with the first screw hole 203 formed on the upper rear side of the fixing block 20 to fix the middle of the knife pressing plate 102 to the upper rear side of the fixing block 20;

[0076] The second bolt 107 passes through the front and rear long waist-shaped holes in the middle of the knife support plate 103 and is threadedly engaged with the second screw hole 204 formed on the lower rear side of the fixing block 20 to fix the middle of the knife support plate 103 to the lower rear side of the fixing block 20;

[0077] The front portion of the knife pressing plate 102 is pressed against the upper side of the cutting blade 101;

[0078] The front portion of the blade support plate 103 is pressed against the lower side of the cutting blade 101;

[0079] The front end of the cutting blade 101 can be extended to the front side of the knife pressing plate 102 and the knife supporting plate 103;

[0080] An adjustment plate 104 is vertically fixed to the lower side of the rear portion of the knife pressing plate 102;

[0081] The lower end of the adjusting plate 104 is connected to the rear portion of the knife supporting plate 103;

[0082] The adjustment plate 104 is provided with a third screw hole;

[0083] The adjusting bolt 105 is threadedly coupled and fixed to the adjusting plate 104 through the third screw hole, and the front end of the adjusting bolt 105 can abut against the rear side of the fixing block 20 .

[0084] In the cutter structure 1 of the first embodiment, the support plate 103 and the pressure plate 102 hold the cutter blade 101, and their positions just expose the reasonable length of the blade of the cutter blade 101. The upper end of the adjustment plate 104 is fixed to the rear of the pressure plate 102, and the lower end is connected to the rear of the support plate 103. When it is necessary to adjust the protruding length of the front end of the cutter blade 101, it is only necessary to loosen the first bolt 106 and the second bolt 107, and turn the adjustment bolt 105 to increase the length of the front end of the adjustment bolt 105 protruding forward from the adjustment plate 104. Since the middle part of the pressure plate 102 and the middle part of the support plate 103 are both front and rear long waist-shaped holes, the adjustment plate 104 will drive the pressure plate 102 and the support plate 103 to retreat, so that the protruding length of the front end of the cutter blade 101 becomes longer, thereby adjusting the extension length of the cutter. The cutter structure 1 can adjust the extended length of the cutter blade 101 within a reasonable range by adjusting the backward pressure plate 102 and the support plate 103. It is easy to adjust, has a simple structure, is easy to process, manufacture and install, and has a low maintenance cost. It can meet the needs of experimental line cutters for the research and development of new cigarette products by cigarette companies.

[0085] Embodiment 2, based on the cutter structure 1 of embodiment 1, a protrusion 1031 is formed on the upper side of the rear portion of the knife support plate 103;

[0086] The lower end of the adjustment plate 104 is located between the protrusion 1031 and the rear side of the fixing block 20;

[0087] Twisting the adjusting bolt 105 increases the length of the front end of the adjusting bolt 105 protruding forward from the adjusting plate 104, so that the front end of the adjusting bolt 105 can be pressed against the rear side of the fixing block 20, and the rear side of the lower end of the adjusting plate 104 can be pressed against the front side of the protrusion 1031, so that the lower end of the adjusting plate 104 is connected to the rear of the knife support plate 103.

[0088] Preferably, a limiting groove 1032 is formed on the upper side surface of the rear portion of the blade supporting plate 103 adjacent to the front side of the protrusion 1031;

[0089] The front-to-back thickness of the lower end of the adjustment plate 104 is smaller than the front-to-back length of the limiting groove 1032;

[0090] The lower end of the adjusting plate 104 is located in the limiting groove 1032 , so that the lower end of the adjusting plate 104 is connected to the rear part of the knife supporting plate 103 .

[0091] Preferably, the portion of the cutting blade 101 fixed to the slot 201 of the fixing block 20 is 2 / 7 to 3 / 7 (eg 1 / 3) of the total front-to-back length of the cutting blade 101 , and the rest of the cutting blade 101 with the cutting edge hangs in front of the fixing block 20 .

[0092] Preferably, a third screw hole 202 is formed at the slot 201 on the upper side of the front portion of the fixing block 20;

[0093] The rear portion of the cutting blade 101 is fixed to the slot 201 of the fixing block 20 by means of a countersunk screw in cooperation with the third screw hole 202 .

[0094] Preferably, a disc-shaped spring piece 108 is provided on the screw sleeve between the head of the first bolt 106 and the second bolt 107 and the fixing block 20 .

[0095] Embodiment 3, a slitting machine feed system including the slitting knife structure 1 of embodiment 1 or 2, such as Figure 2 As shown, the shredder feed system further includes a cutter disc base 2;

[0096] The cutter disc base 2 is in the shape of a circular plate;

[0097] At least two rectangular holes 21 are evenly arranged around the axis on the cutter disc base 2;

[0098] A cutting structure 1 is installed in each rectangular hole 21;

[0099] The left and right ends of the fixing block 20 of the cutter structure 1 are respectively fixed to the distal axial side wall and the proximal axial side wall of the rectangular hole 21, and the fixing block 20 forms an angle of 3° to 30° with the cutter disc base 2, and the front end of the cutting blade 101 can protrude to the front side of the cutter disc base 2.

[0100] Preferably, the fixing block 20 of the cutter structure 1 is integrally formed and fixed with the cutter disc base 2 .

[0101] Embodiment 4, based on embodiment 3, as Figure 3 As shown, the feed system of the wire cutter also includes a cutter drive device 3, a connecting frame 4, a slide block 5, a guide rail 6, a locker 7, a feed drive device 9, and a base 16;

[0102] The cutter drive device 3 is used to drive the cutter disc base 2 to rotate around the axis;

[0103] The cutter drive device 3 is fixed on the connecting frame 4;

[0104] The lower end of the connecting frame 4 is connected and fixed to the slider 5;

[0105] The slider 5 is mounted on the guide rail 6 and can move forward and backward along the guide rail 6;

[0106] The guide rail 6 and the feed drive device 9 are both mounted and fixed on the base 16;

[0107] The driving rod of the feed driving device 9 is connected to the connecting frame 4;

[0108] The locking device 7 is connected to the connecting frame 4;

[0109] The locker 7 is of pneumatically controlled normally closed type. When in working state, the solenoid valve is controlled to close the compressed air, the locker 7 locks the guide rail 6, and the connecting seat frame 4 is fixed, thereby achieving fixed position of the cutter drive device 3; when feed adjustment is required, the solenoid valve is controlled to open the compressed air, the locker 7 is ventilated and opened, and the locking is invalid.

[0110] In the shredder feed system of the fourth embodiment, each cutter structure 1 is installed on a cutter disc base 2, the cutter disc base 2 is connected to the cutter drive device 3, the cutter disc base 2 is driven to rotate by the cutter drive device 3, the cutter drive device 3 is connected to the connecting seat frame 4, the connecting seat frame 4 is fixed on the slider 5, the slider 5 slides back and forth on the guide rail 6 to realize feeding and retracting, and the locker 7 is used to realize the position locking and fixing of the cutter drive device 3.

[0111] Embodiment 5, based on embodiment 4, the shredder feed system further includes a displacement detector 12, a cutter head detection sensor 14 and a controller;

[0112] The displacement detector 12 is arranged on the base 16 and is used to detect the feeding distance of the connecting frame 4 driven by the feeding drive device 9;

[0113] The cutter head detection sensor 14 is arranged at the front side of the cutter disc base 2, and is used to detect whether the front end of the cutting blade 101 of the cutter structure 1 on the cutter disc base 2 protrudes to the set position at the front side of the cutter disc base 2;

[0114] The controller is used to control the feed set distance of the drive rod of the feed drive device 9; and if the feed distance of the connecting bracket 4 detected by the displacement detector 12 is consistent with the set distance, and the tool head detection sensor 14 detects that the front end of the cutting blade 101 of the cutter structure 1 on the cutter disc base 2 protrudes to the set position on the front side of the cutter disc base 2, then the output cutting start signal controls the cutter drive device 3 to start working, driving the cutter disc base 2 to rotate around the axis.

[0115] Preferably, the tool head detection sensor 14 is mounted and fixed on the third bracket 15;

[0116] The third bracket 15 is fixed on the wall panel;

[0117] The base 16 is fixed on the ground;

[0118] The wall panel is vertically fixed to the ground and can move up and down.

[0119] Preferably, the feed drive device 9 is fixed on the base 16 via the first bracket 11 .

[0120] Preferably, the displacement detector 12 is mounted and fixed on the base 16 via the second bracket 13 .

[0121] Preferably, the driving rod of the feed driving device 9 is connected to the connecting frame 4 through the first connecting block 10.

[0122] Preferably, the locker 7 is connected to the connecting frame 4 via a second connecting block 8 .

[0123] In the shredder feed system of the fifth embodiment, when feeding is required, the feed drive device 9 drives the connection frame 4 to complete the feeding action, thereby realizing the feeding of the cutter drive device 3; the controller controls the drive rod of the feed drive device 9 to feed the set distance, and controls whether the cutter drive device 3 starts working according to whether the feeding distance of the connection frame 4 detected by the displacement detector 12 is consistent with the set distance, and whether the front end blade of the cutter blade 101 of the cutter structure 1 on the cutter disc base 2 protrudes to the set position, and realizes the precise feeding of the feed system through the mutual verification of the detection information of the displacement detector 12 and the detection information of the cutter head detection sensor 14. The shredder feed system can meet the needs of experimental line shredders for the research and development of new cigarette products of cigarette enterprises.

[0124] Embodiment 6, based on the shredder feed system of embodiment 4, Figure 4 As shown, the cutter drive device 3 includes a drive shaft 301, a bearing seat 302, a tapered roller bearing 303, a coupling 304, and a reducer 305;

[0125] The drive shaft 301 is fixed to the central axis of the cutter head base 2 by a spline connection;

[0126] The bearing seat 302 is installed on the connecting seat frame 4;

[0127] A pair of tapered roller bearings 303 are mounted in the bearing seat 302;

[0128] The drive shaft 301 is axially mounted and positioned by the pair of tapered roller bearings 303, and the pair of tapered roller bearings 303 are relatively mounted to bear the radial load of the cutter disc base 2;

[0129] The reducer 305 is installed on the connecting frame 4 and is connected to the driving shaft 301 through the coupling 304 to realize the rotation movement of the cutter disc base 2.

[0130] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cutting blade structure, characterized in that: It comprises a fixed block (20), a cutting blade (101), a knife pressing plate (102), a knife supporting plate (103), an adjusting plate (104) and an adjusting bolt (105); The fixing block (20) is a rectangular parallelepiped; The upper side surface of the front portion of the fixing block (20) is concave to form a slot (201); The cutting blade (101) is rectangular, and the front end is a cutting edge; The rear portion of the cutting blade (101) is fixed to the slot (201) of the fixing block (20); The middle of the knife pressing plate (102) is fixed to the upper side of the rear portion of the fixing block (20) by passing a first bolt (106) through the front and rear long waist-shaped holes in the middle of the knife pressing plate (102) and threadedly engaging with a first screw hole (203) formed on the upper side of the rear portion of the fixing block (20); The middle part of the knife support plate (103) is fixed to the lower side of the rear part of the fixing block (20) by passing a second bolt (107) through the front and rear long waist-shaped holes in the middle part of the knife support plate (103) and threadedly engaging with a second screw hole (204) formed on the lower side of the rear part of the fixing block (20); The front portion of the knife pressing plate (102) is pressed onto the upper side of the cutting blade (101); The front portion of the blade support plate (103) is pressed against the lower side of the cutting blade (101); The front end of the cutting blade (101) can protrude to the front side of the blade pressing plate (102) and the blade supporting plate (103); An adjustment plate (104) is vertically fixed to the lower side of the rear portion of the knife pressing plate (102); The lower end of the adjustment plate (104) is connected to the rear portion of the knife supporting plate (103); The adjustment plate (104) is provided with a third screw hole; The adjusting bolt (105) is threadedly coupled and fixed to the adjusting plate (104) through the third screw hole, and the front end of the adjusting bolt (105) can abut against the rear side of the fixing block (20); A convex block (1031) is formed on the upper side surface of the rear portion of the knife supporting plate (103); The lower end of the adjustment plate (104) is located between the protrusion (1031) and the rear side surface of the fixing block (20); By turning the adjusting bolt (105) to increase the length of the front end of the adjusting bolt (105) protruding forward from the adjusting plate (104), the front end of the adjusting bolt (105) can be pressed against the rear side of the fixing block (20), and the rear side of the lower end of the adjusting plate (104) can be pressed against the front side of the protrusion (1031), so that the lower end of the adjusting plate (104) is connected to the rear of the knife support plate (103).

2. The cutter structure according to claim 1, characterized in that: A limiting groove (1032) is formed on the upper side surface of the rear portion of the knife supporting plate (103) adjacent to the front side of the protrusion (1031); The front-to-back thickness of the lower end of the adjustment plate (104) is smaller than the front-to-back length of the limiting groove (1032); The lower end of the adjustment plate (104) is located in the limiting groove (1032), so that the lower end of the adjustment plate (104) is connected to the rear part of the knife supporting plate (103).

3. The cutter structure according to claim 1, characterized in that: The portion of the cutting blade (101) fixed to the slot (201) of the fixing block (20) is 2 / 7 to 3 / 7 of the total front-to-back length of the cutting blade (101).

4. The cutter structure according to claim 1, characterized in that: A third screw hole (202) is formed at the front upper side slot (201) of the fixing block (20); The rear portion of the cutting blade (101) is fixed to the slot (201) of the fixing block (20) by means of a countersunk screw engaging the third screw hole (202).

5. The cutter structure according to claim 1, characterized in that: The screw sleeves between the heads of the first bolt (106) and the second bolt (107) and the fixing block (20) are provided with disc-shaped spring pieces (108).

6. A cutting machine feed system comprising the cutting knife structure according to any one of claims 1 to 5, characterized in that: The shredder feed system further comprises a cutter disc base (2); The cutter disc base (2) is in the shape of a circular plate; At least two rectangular holes (21) are evenly arranged around the axis on the cutter disc base (2); A cutting structure (1) is installed in each rectangular hole (21); The left and right ends of the fixing block (20) of the cutter structure (1) are respectively fixed to the distal axial side wall and the proximal axial side wall of the rectangular hole (21), and the fixing block (20) forms an angle of 3° to 30° with the cutter disc base (2), so that the front end of the cutting blade (101) can protrude to the front side of the cutter disc base (2).

7. The cutting machine feed system according to claim 6, characterized in that: The fixing block (20) is integrally formed with the cutter disc base (2) and fixed together.

8. The cutting machine feed system according to claim 6, characterized in that: The shredder feed system further comprises a shredder drive device (3), a connecting frame (4), a slide block (5), a guide rail (6), a locker (7), a feed drive device (9), and a base (16); The cutter drive device (3) is used to drive the cutter disc base (2) to rotate around the axis; The cutter drive device (3) is fixed on the connecting frame (4); The lower end of the connecting seat frame (4) is connected and fixed to the sliding block (5); The slider (5) is mounted on the guide rail (6) and can move forward and backward along the guide rail (6); The guide rail (6) and the feed drive device (9) body are both mounted and fixed on the base (16); The driving rod of the feed driving device (9) is connected to the connecting frame (4); The locking device (7) is connected to the connecting frame (4); The locker (7) is of a pneumatically controlled normally closed type. In the working state, the electromagnetic valve is controlled to close the compressed air, the locker (7) locks the guide rail (6), and the connecting seat frame (4) is fixed, thereby achieving the position fixation of the cutter drive device (3); when feed adjustment is required, the electromagnetic valve is controlled to open the compressed air, the locker (7) is ventilated and opened, and the locking is invalid.

9. The cutting machine feed system according to claim 8, characterized in that: The shredder feed system also includes a displacement detector (12), a cutter head detection sensor (14) and a controller; The displacement detector (12) is arranged on the base (16) and is used to detect the feeding distance of the connecting seat frame (4) driven by the feeding driving device (9); The cutter head detection sensor (14) is arranged on the front side of the cutter disc base (2) and is used to detect whether the front end of the cutting blade (101) of the cutter structure (1) on the cutter disc base (2) protrudes to a set position on the front side of the cutter disc base (2); The controller is used to control the driving rod of the feed drive device (9) to feed a set distance; and if the feeding distance of the connecting bracket (4) detected by the displacement detector (12) is consistent with the set distance, and the cutter head detection sensor (14) detects that the front end of the cutting blade (101) of the cutting blade structure (1) on the cutter disc base (2) protrudes to the set position on the front side of the cutter disc base (2), then a cutting start signal is output to control the cutter drive device (3) to start working, thereby driving the cutter disc base (2) to rotate around the axis.

10. The cutting machine feed system according to claim 9, characterized in that: The tool head detection sensor (14) is mounted and fixed on the third bracket (15); The third bracket (15) is fixed on the wall panel; The base (16) is fixed on the ground; The wall panel is vertically fixed to the ground and can move up and down; The feed drive device (9) is fixed on the base (16) via a first bracket (11); The displacement detector (12) is mounted and fixed on the base (16) via the second bracket (13); The driving rod of the feed driving device (9) is connected to the connecting seat frame (4) via a first connecting block (10); The locking device (7) is connected to the connecting seat frame (4) via a second connecting block (8).

11. The blade feed system of the shredder according to claim 9, characterized in that: The cutter drive device (3) comprises a drive shaft (301), a bearing seat (302), a tapered roller bearing (303), a coupling (304), and a reducer (305); The drive shaft (301) is fixed to the central axis of the cutter disc base (2) by means of a spline connection; The bearing seat (302) is mounted on the connecting seat frame (4); A pair of tapered roller bearings (303) are mounted in the bearing seat (302); The drive shaft (301) is axially mounted and positioned by means of the pair of tapered roller bearings (303), and the pair of tapered roller bearings (303) are relatively mounted to bear the radial load of the cutter disc base (2); The reducer (305) is mounted on the connecting frame (4) and is connected to the drive shaft (301) via a coupling (304) to achieve rotational movement of the cutter disc base (2).

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