阅读说明：本技术 用于数控裁床的裁刀系统 (Cutter system for numerical control cutting machine ) 是由 张晓东 于 2019-11-28 设计创作，主要内容包括：本发明公开了一种用于数控裁床的裁刀系统,包括主轴安装座,在主轴安装座上设置有偏心轮机构,所述偏心轮机构通过连杆组件与裁刀连接,所述裁刀的刀片与设置在主轴安装座下方的刀盘相对应。本发明通过增大偏心距离,将旋转速度控制在一定范围内,无需加大电机的转速,从而减少了刀片的往复频率,避免使布料黏连。同时通过增加具有第一配重块的偏心轴和平衡轮装置传动连接的方式,避免不平衡力增大而增加噪音和震动。与此同时,本发明的锁盘装置,可实现全自动锁盘、无需人工参与,同时设置随动气缸收回,使锁定的刀盘与面料之间有一定的间距,使用数控裁床裁剪,不会出现锁定的刀盘带动面料翻起导致搓片、翻片等问题,提高裁剪质量。(The invention discloses a cutter system for a numerical control cutting machine, which comprises a main shaft mounting seat, wherein an eccentric wheel mechanism is arranged on the main shaft mounting seat, the eccentric wheel mechanism is connected with a cutter through a connecting rod assembly, and a blade of the cutter corresponds to a cutter head arranged below the main shaft mounting seat. According to the invention, the rotating speed is controlled within a certain range by increasing the eccentric distance, and the rotating speed of the motor is not required to be increased, so that the reciprocating frequency of the blade is reduced, and the cloth is prevented from being adhered. Meanwhile, by adding the mode of transmission connection of the eccentric shaft with the first balancing weight and the balancing wheel device, the noise and vibration caused by increase of unbalanced force are avoided. Meanwhile, the disc locking device can realize full-automatic disc locking without manual participation, the follow-up air cylinder is arranged to retract, a certain distance is reserved between the locked cutter disc and the fabric, the numerical control cutting bed is used for cutting, the problems of sheet rubbing, sheet turning and the like caused by the fact that the locked cutter disc drives the fabric to turn up are avoided, and the cutting quality is improved.)

1. A cut-off knife system for numerical control cutting bed, including main shaft mount pad (5), be provided with eccentric wheel mechanism (2) on main shaft mount pad (5), its characterized in that, eccentric wheel mechanism (2) are connected with cut-off knife (4) through link assembly (3), the blade of cut-off knife (4) is corresponding with blade disc (14) of setting in main shaft mount pad (5) below.

2. The cutting system for the numerical control cutting machine according to claim 1, characterized in that the eccentric wheel mechanism (2) comprises an eccentric shaft, a balance wheel device (12) is arranged on the eccentric shaft, and the balance wheel device (12) is in transmission connection with the eccentric shaft;

the eccentric shaft comprises an eccentric main shaft (2.1), an eccentric inertia shaft (2.2) used for being sleeved with the connecting rod assembly (3) is arranged on the end face of the power output end of the eccentric main shaft (2.1), the eccentricity (D) between the eccentric main shaft (2.1) and the eccentric inertia shaft (2.2) is 15-30mm, and a first balancing weight (13) is further arranged on the end face, provided with the eccentric inertia shaft (2.2), of the eccentric main shaft (2.1);

the first balancing weight (13) and the connecting rod assembly (3) sleeved on the eccentric inertia shaft (2.2) form a first balance gravity center (A), when the eccentric main shaft (2.1) is static or rotates, a resultant force point of a second balance gravity center (B) formed by the first balance gravity center (A) and the balance wheel device (12) is a balance mechanism gravity center (C), and the balance mechanism gravity center (C) is positioned on the center of the eccentric main shaft (2.1); the first balance gravity center (A) is a resultant force point of the gravity center (E) of the connecting rod assembly (3) sleeved on the eccentric inertia shaft (2.2) and the gravity center (F) of the first balancing weight (13).

3. The cutting system for the numerical control cutting machine according to claim 2, characterized in that the balance wheel device (12) is in transmission connection with the eccentric main shaft (2.1), the balance wheel device (12) comprises two balance wheels (12.1), the two balance wheels (12.1) are symmetrically arranged at the left side and the right side of the axial lead of the eccentric main shaft (2.1), the two balance wheels (12.1) are arranged at one side of the main shaft mounting seat (5) close to the power output end of the eccentric main shaft (2.1), and the two balance wheels (12.1) are in transmission connection with a second main shaft wheel (2.11) arranged at the power output end of the eccentric main shaft (2.1); each balance wheel (12.1) is provided with a second balancing weight (12.2), and the resultant gravity center point of the two second balancing weights (12.2) is the second balance gravity center (B) of the balance wheel device (12).

4. The cutter system for the numerical control cutting machine according to claim 2, characterized by further comprising a movable cross beam (7), wherein an upright frame (7.1) of the movable cross beam (7) is connected with a main shaft mounting seat (5) in a vertically sliding fit manner through a sliding plate (6), the main shaft mounting seat (5) is fixedly connected with one side of the sliding plate (6), and one side of the sliding plate (6) far away from the main shaft mounting seat (5) is connected with the upright frame (7.1) in a sliding manner;

the lifting air cylinder (15) is arranged on one side, facing the sliding plate (6), of the vertical frame (7.1), and a piston rod of the lifting air cylinder (15) is fixed with the sliding plate (6).

5. The cut-off knife system for the numerical control cutting machine according to claim 4, characterized by further comprising a power mechanism (1), wherein the power mechanism (1) and the eccentric wheel mechanism (2) are relatively fixed or relatively slidably arranged, and the power mechanism (1) comprises a spindle motor (1.1);

when the power mechanism (1) and the eccentric wheel mechanism (2) are relatively fixedly arranged, the power mechanism (1) and the eccentric wheel mechanism (2) are in transmission connection through gear engagement or a conveyor belt,

an eccentric main shaft (2.1) of the eccentric wheel mechanism (2) is fixed on a main shaft mounting seat (5) through a bearing, the main shaft mounting seat (5) is in sliding connection with an upright frame (7.1) through a sliding plate (6), the main shaft mounting seat (5) is fixed on one side, far away from the upright frame (7.1), of the sliding plate (6), and a main shaft motor (1.1) is fixed on one side, close to the upright frame (7.1), of the sliding plate (6); when the spindle motor works, the spindle motor (1.1) moves up and down on a channel reserved in the vertical frame (7.1) along with the sliding plate (6);

the output shaft of the spindle motor (1.1) is provided with a motor wheel (1.2), the motor wheel (1.2) is connected with a first spindle wheel (2.3) arranged at one end of the eccentric spindle (2.1) far away from the eccentric inertia shaft (2.2) through meshing or transmission by a conveyor belt,

when the power mechanism (1) and the eccentric wheel mechanism (2) are arranged in a relatively sliding manner, the power mechanism (1) and the eccentric wheel mechanism (2) are in transmission connection through a conveyor belt,

the spindle motor (1.1) is fixed on one side of the vertical frame (7.1); eccentric main shaft (2.1) of eccentric wheel mechanism (2) are equipped with first main shaft wheel (2.3), first restraint wheel (2.4) and second restraint wheel (2.5) towards the terminal surface of erectting frame (7.1) one side, erectting frame (7.1) is equipped with tight pulley (7.11) towards the top of main shaft mount pad (5) one side terminal surface, first main shaft wheel (2.3) are walked around through conveyer belt (8) tight pulley (7.11) and motor wheel (1.2) looks transmission connection of main shaft motor (1.1).

6. The cut-off knife system for the numerical control cutting machine according to claim 4, characterized in that the connecting rod assembly (3) comprises a first connecting rod (3.1), one end of the first connecting rod (3.1) is sleeved on the eccentric inertia shaft (2.2), the other end of the first connecting rod is connected with the handle of the cut-off knife (4) through a first piston (3.2), and the handle of the cut-off knife (4) is fixed with the first piston (3.2) through a piston rotator (3.5) or a coupler (3.6) and is horizontally and rotatably connected with the first piston (3.2); the first piston (3.2) is arranged in a sealing cavity arranged at the lower end of the main shaft mounting seat (5) and is connected with the sealing cavity in a vertically moving mode;

a rotating body (9) is further arranged below the main shaft mounting seat (5), the rotating body (9) comprises an inner seat rotating body (9.1) and a bearing outer seat (9.2), the inner seat rotating body (9.1) is supported on the bearing outer seat (9.2) in a rolling manner, and the bearing outer seat (9.2) is fixed on the sliding plate (6);

an upper fixed cutter body (10) is arranged in the inner seat rotating body (9.1), two upper bearings (10.1), two lower bearings (10.2), a first middle bearing (10.3) and a second middle bearing (10.4) are arranged in the middle of the upper fixed cutter body (10), the two upper bearings (10.1) are arranged at the upper end of the middle of the upper fixed cutter body (10) in a bilateral symmetry manner, the two lower bearings (10.2) are arranged at the lower end of the middle of the upper fixed cutter body (10) in a bilateral symmetry manner, each upper bearing (10.1) is vertically opposite to one lower bearing (10.2), the first middle bearing (10.3) and the second middle bearing (10.4) are arranged in the center of the upper fixed cutter body (10) and vertically opposite, the first middle bearing (10.3) and the second middle bearing (10.4) are both positioned at the same side of the two upper bearings (10.1) and the two lower bearings (10.2), and the first middle bearing (10.1) is positioned at one side of the upper bearing (10.1), the second middle bearing (10.2) is positioned above one side of the two lower bearings (10.2);

a channel for the passage of the blade of the cutting knife (4) is preset between the two upper bearings (10.1) and the two lower bearings (10.2).

7. The cut-off knife system for the numerical control cutting machine according to claim 4, characterized in that the connecting component (3) comprises a first connecting rod (3.1) and a second connecting rod (3.3), one end of the first connecting rod (3.1) is sleeved on the eccentric inertia shaft (2.2) of the eccentric wheel mechanism (2), the other end of the first connecting rod is fixed with the second connecting rod (3.3) through a first piston (3.2), the second connecting rod (3.3) is connected with the handle of the cut-off knife (4) through a second piston (3.4), the handle of the cut-off knife (4) is fixed with the second piston (3.4) through a piston rotating body (3.5) or a coupler (3.6) and is horizontally and rotatably connected with the second piston (3.4),

a rotating body (9) is further arranged below the main shaft mounting seat (5), the rotating body (9) comprises an inner seat rotating body (9.1) and a bearing outer seat (9.2), the inner seat rotating body (9.1) is supported on the bearing outer seat (9.2) in a rolling manner, and the bearing outer seat (9.2) is fixed on the sliding plate (6);

a shaft sleeve (11) is arranged in the inner seat rotating body (9.1), and the second piston (3.4) is arranged in the shaft sleeve (11) and is matched with the shaft sleeve (11) in an up-and-down sliding manner; the first piston (3.2) is arranged in a sealing cavity arranged at the lower end of the main shaft mounting seat (5) and is matched with the sealing cavity in a vertically sliding manner.

8. The cutter system for the numerical control cutting machine according to claim 6 or 7, wherein the cutter head (14) comprises an outer cutter head (14.1) and an inner cutter head (14.2), a bearing (14.3) is symmetrically arranged at the upper part and the lower part of the annular inner wall of the outer cutter head (14.1), the inner cutter head (14.2) is arranged in the two bearings (14.3) in a penetrating way, a plurality of outer cutter head guide rail mounting positions (14.4) are further arranged on the outer cutter head (14.1), an outer cutter head guide rod (16) is fixedly arranged on each outer cutter head guide rail mounting position (14.4), and the outer cutter head guide rod (16) is arranged on the bearing outer base (9.2) in a penetrating way and is in up-and-down sliding connection with the bearing outer base (9.2);

still be equipped with a plurality of interior blade disc guide rail installation positions (14.5) on interior blade disc (14.2), fixedly on every interior blade disc guide rail installation position (14.5) be equipped with one interior blade disc guide rail (17), interior blade disc guide rail is worn to establish on bearing outer support (9.2) and is sliding connection from top to bottom with bearing outer support (9.2).

9. The cutter system for the numerical control cutting machine according to claim 8, characterized in that a cutter cooling device is further arranged on the cutter (14), the cutter cooling device comprises a horizontal annular cavity (14.6) and a vertical cross-shaped cavity (14.7) which are respectively and correspondingly arranged on the outer periphery and the inner periphery of the inner cutter (14.2), the annular cavity (14.6) is communicated with the cross-shaped cavity (14.7), and the center of the cross-shaped cavity (14.7) is a blade passing position of the cutter (4);

the oil-gas mixing type oil-gas mixing device is characterized by further comprising a plurality of oil-gas mixing atomizers (19) fixed in the middle of the annular inner wall of the outer cutter head (14.1), the plurality of oil-gas mixing atomizers (19) are uniformly distributed in the annular cavity (14.6) in an annular shape, an annular oil cavity (14.8) and an annular air cavity (14.9) are respectively arranged in the outer cutter head (14.1) and close to the two bearings (14.3), an oil inlet of the annular oil cavity (14.8) is communicated with the oil pump (20), and a plurality of oil outlets formed in the annular oil cavity (14.8) are communicated with atomizer oil inlets (19a) of the plurality of oil-gas mixing atomizers (19) in a one-to-one correspondence manner; the air inlet of the annular air cavity (14.9) is communicated with a vortex type cold air gun (21), and a plurality of air outlets arranged on the annular air cavity (14.9) are communicated with the atomizer air inlets (19b) of a plurality of oil-gas mixing atomizers (19) in a one-to-one correspondence manner;

an inner cutter head follower (22) is further fixed at the lower end of the inner cutter head (14.2), a felt (23) is arranged between the inner cutter head follower (22) and the inner cutter head (14.2), and the felt (23) is located right below a cross-shaped cavity (14.7) of the inner cutter head (14.2);

a pair of upper fixed cutter bearings (14.21) and a pair of lower fixed cutter bearings (14.22) are further arranged in the cross-shaped cavity (14.7) of the inner cutter head (14.2), the two upper fixed cutter bearings (14.21) and the two lower fixed cutter bearings (14.22) are respectively in bilateral symmetry with the central axis of the cross-shaped cavity (14.7), the two upper fixed cutter bearings (14.21) and the two lower fixed cutter bearings (14.22) are in up-down one-to-one correspondence with each other, and reserved gaps between the two upper fixed cutter bearings (14.21) and reserved gaps between the two lower fixed cutter bearings (14.22) are both passing channels of the cutter (4) blades;

and a middle fixed cutter bearing (14.23) is also arranged in the cross-shaped cavity (14.7) of the inner cutter head (14.2), and the middle fixed cutter bearing (14.23) is positioned at one side of the middle parts of the two upper fixed cutter bearings (14.21) and the two lower fixed cutter bearings (14.22) and is close to the passing channel of the cutter (4) blade.

10. The cutter system for the numerical control cutting machine according to claim 8, wherein a cutter locking device is arranged on the cutter head (14), the cutter locking device comprises a cutter locking mounting plate (18.1), a follow-up cylinder (18.2) is arranged on the cutter locking mounting plate (18.1), and a piston rod of the follow-up cylinder (18.2) is fixedly connected with the outer cutter head (14.1);

a toothed rod (18.3) is further fixed on the cutter locking mounting plate (18.1), the toothed rod (18.3) penetrates through the bearing outer support (9.2) and is matched and locked with a toothed block (18.4) arranged at the upper part of the bearing outer support (9.2), the toothed block (18.4) is fixedly connected with a piston rod of a locking cylinder (18.5), and a cylinder body of the locking cylinder (18.5) is arranged on the bearing outer support (9.2);

a pressure plate cylinder (18.6) is further mounted on the vertical frame (7.1), and a piston rod of the pressure plate cylinder (18.6) is fixed with the lock knife mounting plate (18.1).

Technical Field

The invention relates to the technical field of numerical control cutting machines, in particular to a cutter system for a numerical control cutting machine.

Background

The numerical control cutting bed is a sewing device for automatically cutting cloth, is widely applied to the clothing manufacturing industry, and controls the motion track (namely the cutting track) of a cutter by using data set by a computer so as to cut required cut pieces. The cutting bed mainly comprises a cutting table, a cutting knife, a knife fixing mechanism, a rotating mechanism, an operation panel, a vacuum suction device and the like; in the cutting process, the cutter does vertical linear motion and 360-degree rotary motion, the upper end of the cutter is arranged in the cutter fixing mechanism, and the cutter fixing mechanism is connected with the rotary mechanism, so that the cutter can cut various curves or straight lines.

The cutting bed used in the current market is not strong in working capacity of the whole equipment due to the fact that the eccentric radius of the eccentric main shaft is smaller than or equal to 12.5mm, when the cloth to be cut is thick or the cloth is hard and needs a certain cutting speed, the speed of the rotating mechanism needs to be increased, the reciprocating frequency of the blade is increased, the friction frequency between the blade and the cloth is increased, and the cloth is adhered. When a certain cutting speed of the cutter needs to be obtained, the eccentric distance is increased, the rotating speed is controlled within a certain range, and the rotating speed of the motor does not need to be increased, so that the reciprocating frequency of the blade is reduced, and cloth is prevented from being adhered. Meanwhile, the increase of noise and vibration caused by the increase of unbalanced force due to large eccentricity is avoided by adding a balance mechanism.

Disclosure of Invention

In order to solve the problems in the prior art, the present invention provides a cutting system for a numerical control cutting machine.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention provides a cutter system for a numerical control cutting machine, which comprises a main shaft mounting seat, wherein an eccentric wheel mechanism is arranged on the main shaft mounting seat, the eccentric wheel mechanism is connected with a cutter through a connecting rod assembly, and a blade of the cutter corresponds to a cutter head arranged below the main shaft mounting seat.

In the technical scheme, the eccentric wheel mechanism comprises an eccentric shaft, a balance wheel device is arranged on the eccentric shaft, and the balance wheel device is in transmission connection with the eccentric shaft;

the eccentric shaft comprises an eccentric main shaft, an eccentric inertia shaft for sleeving the connecting rod assembly is arranged on the end face of the power output end of the eccentric main shaft, the eccentricity D between the eccentric main shaft and the eccentric inertia shaft is 15-30mm, and a first balancing weight is further arranged on the end face of the eccentric main shaft, provided with the eccentric inertia shaft;

the first balancing weight and the connecting rod assembly sleeved on the eccentric inertia shaft form a first balance gravity center A, when the eccentric main shaft is static or rotates, the resultant force point of a second balance gravity center B formed by the first balance gravity center A and the balance wheel device is a balance mechanism gravity center C, and the balance mechanism gravity center C is positioned on the center of the eccentric main shaft; the first balance gravity center A is a resultant force point of a connecting rod assembly gravity center E and a first balancing weight gravity center F which are sleeved on the eccentric inertia shaft.

In the technical scheme, the balance wheel device is in transmission connection with the eccentric main shaft and comprises two balance wheels, the two balance wheels are symmetrically arranged on the left side and the right side of the axial lead of the eccentric main shaft, the two balance wheels are arranged on one side, close to the power output end of the eccentric main shaft, of the main shaft mounting seat, and the two balance wheels are in transmission connection with a second main shaft wheel arranged at the power output end of the eccentric main shaft; each balance wheel is provided with a second balancing weight, and the resultant gravity center point of the two second balancing weights is the second balance gravity center B of the balance wheel device.

In the technical scheme, the device further comprises a movable cross beam, wherein an upright frame of the movable cross beam is connected with a main shaft mounting seat in a vertically sliding fit mode through a sliding plate, the main shaft mounting seat is fixedly connected with one side of the sliding plate, and one side of the sliding plate, which is far away from the main shaft mounting seat, is connected with the upright frame in a sliding mode; and a lifting cylinder is arranged on one side of the vertical frame facing the sliding plate, and a piston rod of the lifting cylinder is fixed with the sliding plate.

In the technical scheme, the device further comprises a power mechanism, wherein the power mechanism and the eccentric wheel mechanism are relatively fixed or relatively arranged in a sliding manner, and the power mechanism comprises a spindle motor;

when the power mechanism and the eccentric wheel mechanism are relatively fixedly arranged, the power mechanism and the eccentric wheel mechanism are in transmission connection through gear engagement or a conveyor belt,

an eccentric main shaft of the eccentric wheel mechanism is fixed on a main shaft mounting seat through a bearing, the main shaft mounting seat is connected with the vertical frame in a sliding mode through a sliding plate, the main shaft mounting seat is fixed on one side, far away from the vertical frame, of the sliding plate, and a main shaft motor is fixed on one side, close to the vertical frame, of the sliding plate; when the spindle motor works, the spindle motor moves up and down on a channel reserved in the vertical frame along with the sliding plate;

and the motor wheel is arranged on the output shaft of the spindle motor, and the motor wheel is meshed with a first spindle wheel arranged at one end of the eccentric spindle, which is far away from the eccentric inertia shaft, through a gear or is in transmission connection through a conveyor belt.

When the power mechanism and the eccentric wheel mechanism are arranged in a relative sliding manner and are in transmission connection through the conveying belt,

the spindle motor is fixed on one side of the vertical frame; the eccentric mechanism is characterized in that a first main shaft wheel, a first restraint wheel and a second restraint wheel are arranged on the end face of one side, facing the vertical frame, of an eccentric main shaft of the eccentric mechanism, a tension wheel is arranged on the top of the end face of one side, facing the main shaft mounting seat, of the vertical frame, and the first main shaft wheel bypasses the tension wheel through a conveying belt and is in transmission connection with a motor wheel of a main shaft motor.

In the technical scheme, the connecting rod assembly comprises a first connecting rod, one end of the first connecting rod is sleeved on the eccentric inertia shaft, the other end of the first connecting rod is connected with the cutter handle of the cut-off knife through a first piston, and the cutter handle of the cut-off knife is fixed with the first piston through a piston rotating body or a coupling and is horizontally and rotatably connected with the first piston; the first piston is arranged in a sealing cavity arranged at the lower end of the main shaft mounting seat and is connected with the sealing cavity in a vertically moving mode;

a rotating body is further arranged below the main shaft mounting seat and comprises an inner seat rotating body and an outer bearing seat, the inner seat rotating body is supported on the outer bearing seat in a rolling manner, and the outer bearing seat is fixed on the sliding plate;

an upper cutter fixing body is arranged in the inner base rotating body, two upper bearings, two lower bearings, a first middle bearing and a second middle bearing are arranged in the middle of the upper cutter fixing body, the two upper bearings are arranged at the upper end of the middle of the upper cutter fixing body in a bilateral symmetry mode, the two lower bearings are arranged at the lower end of the middle of the upper cutter fixing body in a bilateral symmetry mode, each upper bearing is vertically opposite to one lower bearing, the first middle bearing and the second middle bearing are arranged in the center of the upper cutter fixing body and vertically opposite to each other, the first middle bearing and the second middle bearing are located on the same side of the two upper bearings and the two lower bearings, the first middle bearing is located below one side of the two upper bearings, and the second middle bearing is located above one side of the two lower bearings;

a channel for the blade of the cutting knife to pass through is preset between the two upper bearings and the two lower bearings.

Among the above-mentioned technical scheme, coupling assembling includes first connecting rod and second connecting rod, first connecting rod pot head is established on eccentric wheel mechanism's eccentric inertia axle, and the other end is fixed through first piston and second connecting rod, the second connecting rod passes through the second piston and is connected with the handle of a knife of cut-off knife, the handle of a knife of cut-off knife passes through piston rotator or shaft coupling and is fixed with the second piston, and be the horizontal rotation with the second piston and be connected.

A rotating body is further arranged below the main shaft mounting seat and comprises an inner seat rotating body and an outer bearing seat, the inner seat rotating body is supported on the outer bearing seat in a rolling manner, and the outer bearing seat is fixed on the sliding plate;

a shaft sleeve is arranged in the inner seat rotating body, and the second piston is arranged in the shaft sleeve and is in up-down sliding fit with the shaft sleeve; the first piston is arranged in a sealing cavity arranged at the lower end of the main shaft mounting seat and is matched with the sealing cavity in a vertically sliding mode.

In the technical scheme, the cutter head comprises an outer cutter head and an inner cutter head, the upper part and the lower part of the annular inner wall of the outer cutter head are symmetrically provided with a bearing, the inner cutter head penetrates through the two bearings, the outer cutter head is also provided with a plurality of outer cutter head guide rail mounting positions, each outer cutter head guide rail mounting position is fixedly provided with an outer cutter head guide rod, and the outer cutter head guide rods penetrate through the outer bearing base and are in up-down sliding connection with the outer bearing base;

the inner cutter head is also provided with a plurality of inner cutter head guide rail installation positions, each inner cutter head guide rail installation position is fixedly provided with an inner cutter head guide rail, and the inner cutter head guide rails penetrate through the bearing outer support and are in up-down sliding connection with the bearing outer support.

In the technical scheme, a cutter head cooling device is further arranged on the cutter head, the cutter head cooling device comprises a horizontal annular cavity and a vertical cross-shaped cavity which are correspondingly arranged on the outer periphery and the inner periphery of the inner cutter head respectively, the annular cavity is communicated with the cross-shaped cavity, and the center of the cross-shaped cavity is a blade passing position of a cutter;

the oil-gas mixing atomizer comprises an outer cutter head, a plurality of bearings, a plurality of oil-gas mixing atomizers, an oil pump, a plurality of oil outlets and atomizer oil inlets, wherein the oil pump is arranged in the outer cutter head; the air inlet of the annular air cavity is communicated with the vortex type cold air gun, and a plurality of air outlets arranged on the annular air cavity are communicated with the air inlets of the atomizers of the oil-gas mixing atomizer in a one-to-one correspondence manner;

an inner cutter head follower is further fixed at the lower end of the inner cutter head, a felt is arranged between the inner cutter head follower and the inner cutter head, and the felt is located right below the cross-shaped cavity of the inner cutter head;

a pair of upper cutter fixing bearings and a pair of lower cutter fixing bearings are further arranged in the cross-shaped cavity of the inner cutter head, the two upper cutter fixing bearings and the two lower cutter fixing bearings are respectively in bilateral symmetry with the central axis of the cross-shaped cavity, the two upper cutter fixing bearings and the two lower cutter fixing bearings are in up-down one-to-one correspondence with each other, and reserved gaps between the two upper cutter fixing bearings and reserved gaps between the two lower cutter fixing bearings are both through channels of cutter blades;

and a middle fixed cutter bearing is also arranged in the cross-shaped cavity of the inner cutter head, is positioned on one side of the middle parts of the two upper fixed cutter bearings and the two lower fixed cutter bearings and is close to the passing channel of the cutter blade.

In the technical scheme, a cutter locking device is arranged on the cutter disc and comprises a cutter locking mounting plate, a follow-up cylinder is arranged on the cutter locking mounting plate, and a piston rod of the follow-up cylinder is fixedly connected with the outer cutter disc;

the lock cutter mounting plate is also fixedly provided with a toothed rod, the toothed rod penetrates through the bearing outer support and is matched and locked with a toothed block arranged at the upper part of the bearing outer support, the toothed block is fixedly connected with a piston rod of a locking cylinder, and a cylinder body of the locking cylinder is arranged on the bearing outer support;

and a pressure plate cylinder is further installed on the vertical frame, and a piston rod of the pressure plate cylinder is fixed with the lock cutter installation plate.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, the spindle motor transmits rotary motion through the gear or the synchronous belt, and the eccentric wheel mechanism converts the rotary motion into reciprocating motion through the connecting rod assembly, thereby realizing large-stroke reciprocating motion and improving the production efficiency. Under the condition that the rotating speed of the eccentric main shaft is not changed, the eccentric distance is increased, and the cutting speed can be doubled. Therefore, the invention has the following advantages: 1. the cutting capability is stronger when the frequencies are the same; 2. the cutting ability is the same, the frequency is lower, the heating is less, and the cloth is not easy to dissolve.

2. According to the invention, the eccentric wheel mechanism is provided with the balance wheel device, the balance wheel device is in transmission connection with the eccentric shaft provided with the first configuration block, and the resultant force gravity center point C of the first balance gravity center A formed by the connecting rod assembly and the first balancing weight block sleeved on the eccentric inertia shaft and the second balance gravity center B formed by the balance wheel device is always positioned on the center of the eccentric main shaft, so that the unbalanced force on the eccentric inertia shaft is eliminated, and the vibration and noise caused by the action of the centrifugal force during high-speed rotation are reduced. Meanwhile, when the eccentric distance is increased and the cutting capacity of the blade is improved, the mode of transmission connection of the eccentric shaft with the first balancing weight and the balancing wheel device is added, and the increase of unbalanced force and noise and vibration are avoided.

3. The disc locking device can realize full-automatic disc locking without manual participation, the follow-up air cylinder is arranged to retract, a certain distance is reserved between the locked cutter disc and the fabric, the numerical control cutting bed is used for cutting, the problems of sheet rubbing, sheet turning and the like caused by the fact that the locked cutter disc drives the fabric to turn up are avoided, and the cutting quality is improved.

4. Different power mechanisms are provided, and according to different cloth cutting, the main shaft motor can be selected to move along with the sliding plate and be in gear transmission, or the main shaft motor can be fixed and be in synchronous belt transmission, wherein the main shaft motor can be fixed to achieve the transmission purpose when the superhard material is cut.

5. According to the invention, the cut-off knife is rotationally connected with the connecting rod assembly, so that the advancing direction of the cutting edge of the cut-off knife is consistent with the advancing direction of the trajectory line during cutting. Meanwhile, cutters with different lengths can be assembled.

6. In the invention, a cutter head cooling device sends oil and gas into an oil-gas mixing atomizer through mechanisms such as an oil pump and a vortex type cold air gun; the oil-gas mixing atomizer directly sprays oil and gas after mixing on the blade, the two upper fixed cutter bearings, the two lower fixed cutter bearings and the middle fixed cutter bearing which are arranged in the cross-shaped cavity, the excessive silicon oil substance falls onto the felt through volatilization cooling of low-temperature gas and silicon oil, and the felt acts on the blade again for secondary cooling after absorbing oil; thereby achieving better blade cooling effect and effectively solving the adhesion problem of cloth which is easy to adhere.

Drawings

FIG. 1 is a first schematic structural diagram of embodiment 1;

FIG. 2 is a first winding pattern of the conveyor belt of example 1;

FIG. 3 is a second winding pattern of the conveyor belt of example 1;

FIG. 4 is a second schematic structural view of embodiment 1;

FIG. 5 is a first schematic structural diagram of embodiment 2;

FIG. 6 is a second schematic structural view of embodiment 2;

fig. 7 is a side sectional view of embodiment 1 or embodiment 2;

FIG. 8 is an enlarged view of a portion of FIG. 7;

fig. 9a is a schematic diagram of the position of the first balance center of gravity a when the eccentric main shaft is in the first position state in embodiment 1 or embodiment 2;

fig. 9b is a schematic diagram of the position of the first balance center of gravity a when the eccentric main shaft is in the second position state in embodiment 1 or embodiment 2;

fig. 10a is a schematic view of the position of the center of gravity C of the balance mechanism in the first position state of the eccentric main shaft in embodiment 1 or embodiment 2, wherein point a in the figure corresponds to fig. 9 a;

fig. 10b is a schematic view of the position of the center of gravity C of the balance mechanism in the second position state of the eccentric main shaft in embodiment 1 or embodiment 2, wherein a point a in the figure corresponds to fig. 9 b;

fig. 11 is a plan view of the cutter head in embodiment 1 or embodiment 2;

fig. 12 is a side sectional view of the first embodiment 3 or the second embodiment 4;

FIG. 13 is an enlarged view of a portion of FIG. 12;

fig. 14a is a schematic diagram of the position of the first balance center of gravity a when the eccentric main shaft is in the first position state in embodiment 3 or embodiment 4;

fig. 14b is a schematic diagram of the position of the first balance center of gravity a when the eccentric main shaft is in the second position state in embodiment 3 or embodiment 4;

fig. 15a is a schematic view of the position of the center of gravity C of the balance mechanism in the first position state of the eccentric main shaft in embodiment 3 or embodiment 4, wherein point a in the figure corresponds to fig. 14 a;

fig. 15b is a schematic view of the position of the center of gravity C of the balance mechanism in the second position state of the eccentric main shaft in embodiment 3 or embodiment 4, wherein point a in the figure corresponds to fig. 14 b;

FIG. 16 is a schematic structural view of a blade locking device in accordance with embodiment 5;

FIG. 17 is a schematic view showing the structure of a cooling apparatus for a cutter head according to embodiment 6;

FIG. 18 is an enlarged view of a portion of FIG. 17 at C;

FIG. 19 is an enlarged view of a portion of FIG. 18 at D;

FIG. 20 is a schematic cross-sectional view taken along line A-A in FIG. 17;

FIG. 21 is a schematic cross-sectional view taken along line B-B in FIG. 17;

FIG. 22 is a schematic structural view of the oil-gas mixture atomizer;

FIG. 23 is a schematic view of the structure of the movable beam of the present invention;

FIG. 24 is a front sectional view showing the coupling of the upper stationary cutter body with the cutter and the rotary body according to the present invention;

FIG. 25 is a side sectional view showing the connection of the upper stationary cutter body with the cutter and the rotary body according to the present invention;

in fig. 9a to 9b and 14a to 14b, E is the center of gravity of the connecting rod assembly sleeved on the eccentric inertia shaft, F is the center of gravity of the first balancing weight, a is the first balancing center of gravity, i.e., the resultant force point of the connecting rod assembly and the first balancing weight, and P represents the distance between the first balancing center of gravity a and the center of the eccentric main shaft;

in fig. 10a to 10B and fig. 15a to 15B, H is the center of gravity of the second balancing weight, B is the center of gravity of the two second balancing weights, and C is the center of gravity of the balancing mechanism, i.e., the resultant force point of the first center of gravity and the center of gravity of the two second balancing weights;

d is an eccentricity which represents the axle center distance between the eccentric main shaft and the eccentric inertia shaft;

description of reference numerals:

1. a power mechanism; 1.1, a spindle motor; 1.2, a motor wheel; 2. an eccentric wheel mechanism; 2.1, an eccentric main shaft; 2.11, a second main shaft wheel; 2.2, an eccentric inertia shaft; 2.3, a first main shaft wheel; 2.4, a first restraint wheel; 2.5, a second restraint wheel; 3. a connecting rod assembly; 3.1, a first connecting rod; 3.2, a first piston; 3.3, a second connecting rod; 3.4, a second piston; 3.5, a piston rotator; 3.6, a coupler; 4. a cutter; 5. a main shaft mounting base; 6. A slide plate; 6.1, a linear slide block; 7. moving the beam; 7.1, erecting a frame; 7.11, a tension wheel; 7.2, moving the beam body; 7.2a, a horizontal sliding rail; 7.2b, a transmission gear; 7.3, horizontal frame; 7.3a, a horizontal sliding block; 8. a conveyor belt; 9. a rotating body; 9.1, an inner seat rotator; 9.2, bearing outer seats; 10. fixing a cutter body; 10.1, an upper bearing; 10.2, a lower bearing; 10.3, a first middle bearing; 10.4, a second middle bearing; 11. a shaft sleeve; 12. a balance wheel device; 12.1, a balance wheel; 12.2, a second balancing weight; 12.3, a first tensioning wheel; 12.4, a second tensioning wheel; 12.5, a synchronous belt; 13. a first weight block; 14. a cutter head; 14.1, an outer cutter disc; 14.2, an inner cutter disc; 14.21, an upper fixed cutter bearing; 14.22, a lower fixed cutter bearing; 14.23, a middle fixed cutter bearing; 14.3, a bearing; 14.4, an outer cutter head guide rail mounting position; 14.5, an inner cutter head guide rail mounting position; 14.6, ring cavity; 14.7, a cross-shaped cavity; 14.8, an annular oil chamber; 14.9, an annular air cavity; 15. a lifting cylinder; 16. an outer cutter head guide rod; 17. an inner cutter head guide rail; 18.1, a lock knife mounting plate; 18.2, a follow-up cylinder; 18.3, a toothed rod; 18.4, a tooth-shaped block; 18.5, locking the air cylinder; 18.6, a platen cylinder; 19. an oil-gas mixing atomizer; 19.1, concentric sleeve structure; 19.2, a vortex structure; 19.3, an atomizer air inlet; 19.4, an oil inlet of the atomizer; 20. An oil pump; 20a, an oil pipe; 20b, a liquid flow regulating valve; 21. a vortex type cold air gun; 21a, a trachea; 21b, a gas flow regulating valve; 22. an inner cutter head follower; a through hole 22.1; a first annular groove 22.2; a first through hole 22.3; 23. felt; 24. an upper protective cover; 25. a lower protective cover; 25.1, a second annular groove; 26. A liquid recovery pipeline; 27. an oil suction pump; 28. a grazing ring.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following description further explains how the invention is implemented by combining the attached drawings and the detailed implementation modes.

Referring to fig. 1 to 25, the invention provides a cutter system for a numerical control cutting machine, which comprises a main shaft mounting seat 5, wherein an eccentric wheel mechanism 2 is arranged on the main shaft mounting seat 5, the eccentric wheel mechanism 2 is connected with a cutter 4 through a connecting rod assembly 3, and a blade of the cutter 4 corresponds to a cutter head 14 arranged below the main shaft mounting seat 5.

The eccentric wheel mechanism 2 comprises an eccentric shaft, a balance wheel device 12 is arranged on the eccentric shaft, and the balance wheel device 12 is in transmission connection with the eccentric shaft. The eccentric shaft comprises an eccentric main shaft 2.1, an eccentric inertia shaft 2.2 for sleeving the connecting rod assembly 3 is arranged on the end face of the power output end of the eccentric main shaft 2.1, the eccentricity D between the eccentric main shaft 2.1 and the eccentric inertia shaft 2.2 is 15-30mm, and a first balancing weight 13 is further arranged on the end face of the eccentric main shaft 2.1, which is provided with the eccentric inertia shaft 2.2;

the first balancing weight 13 and the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 form a first balance gravity center a, when the eccentric main shaft 2.1 is static or rotates, the resultant force point of a second balance gravity center B formed by the first balance gravity center a and the balance wheel device 12 is a balance mechanism gravity center C, the balance mechanism gravity center C is located on the center of the eccentric main shaft 2.1, and meanwhile, the distance P between the first balance gravity center a and the center of the eccentric main shaft 2.1 is within 5 mm. The first balance gravity center a is a resultant force point of a gravity center E of the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 and a gravity center F of the first balancing weight 13.

The balance wheel device 12 is in transmission connection with the eccentric main shaft 2.1, the balance mechanism comprises a balance wheel device 12 and a balance block mechanism, the balance wheel device 12 is in transmission connection with the eccentric main shaft 2.1, the balance block mechanism comprises a first balance weight block 13, the first balance weight block 13 is arranged on the end face of the power output end of the eccentric main shaft 2.1, the connecting rod assembly 3 sleeved on the first balance weight block 13 and the eccentric inertia shaft 2.2 forms a first balance gravity center A, when the eccentric main shaft 2.1 is static or rotates, the resultant force point of a second balance gravity center B formed by the first balance gravity center A and the balance wheel device 12 is a balance mechanism gravity center C, and the balance mechanism gravity center C is located on the eccentric main shaft 2.1.

In the invention, further, the numerical control cutting machine further comprises a movable cross beam 7, as shown in fig. 23, the movable cross beam 7 is arranged above a workbench of the numerical control cutting machine, the movable cross beam 7 comprises an upright frame 7.1, a movable cross beam body 7.2 and a horizontal frame 7.3, the movable cross beam body 7.2 is connected with a horizontal sliding block 7.3a arranged on the horizontal frame 7.3 in a horizontal sliding fit manner through a transmission gear 7.2b and a horizontal sliding rail 7.2a arranged on the movable cross beam body, the transmission gear 7.2b is connected with an output shaft of a motor (not shown in the figure), and the transmission gear 7.2b is in meshed connection with a rack (not shown in the figure) arranged on the movable cross beam body 7.2; the horizontal frame 7.3 is fixedly connected with the vertical frame 7.1.

The upright frame 7.1 is connected with the spindle mounting seat 5 in a vertically sliding fit manner through a sliding plate 6, the spindle mounting seat 5 is fixedly connected with one side of the sliding plate 6, and one side, far away from the spindle mounting seat 5, of the sliding plate 6 is connected with the upright frame 7.1 in a sliding manner; the side, facing the sliding plate 6, of the vertical frame 7.1 is provided with a lifting cylinder 15, and a piston rod of the lifting cylinder 15 is fixed with the sliding plate 6.