CN211199857U - Eccentric shaft vibrating knife device with balance block - Google Patents
Eccentric shaft vibrating knife device with balance block Download PDFInfo
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- CN211199857U CN211199857U CN201922085895.4U CN201922085895U CN211199857U CN 211199857 U CN211199857 U CN 211199857U CN 201922085895 U CN201922085895 U CN 201922085895U CN 211199857 U CN211199857 U CN 211199857U
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Abstract
The utility model discloses an eccentric shaft vibration sword device with balancing piece, including power unit, eccentric wheel mechanism, link assembly and cut-off knife, power unit is connected with the transmission of eccentric wheel mechanism, eccentric wheel mechanism passes through link assembly and is connected with the cut-off knife, be equipped with the balancing piece on the eccentric wheel mechanism. The utility model discloses in, spindle motor passes through gear or hold-in range transmission rotary motion, is converted into reciprocating motion to rotary motion through link assembly by eccentric wheel mechanism, realizes big stroke reciprocating motion to improve production efficiency. The utility model discloses a set up the balancing piece at eccentric wheel mechanism, the distance H of the combination force point (static balance focus A promptly) and the eccentric main shaft centre of a circle of the link assembly and the balancing piece that cup joint on the eccentric inertia axle is within 5mm all the time to eliminate most unbalanced force on the eccentric inertia axle, because the effect of centrifugal force causes vibrations and noise when reducing high-speed rotation.
Description
Technical Field
The utility model relates to a technical field of numerical control cutting bed, specific saying so relates to an eccentric shaft vibration sword device with balancing piece.
Background
The cutting machine used in the market at present can not work well due to the eccentric radius of the eccentric main shaft being less than or equal to 12.5mm, and the patent with the publication number of 109944051A and the name of an eccentric main shaft vibrating knife for a numerical control cutting machine provides a main shaft vibrating knife for the numerical control cutting machine, which comprises a main shaft motor, an eccentric main shaft fixed on the numerical control cutting machine, a piston, a slide block and a blade; the piston is arranged in a sealing cavity of the numerical control cutting bed; the sliding block is arranged in a slide way of the numerical control cutting machine, and the sealing cavity and the slide way are positioned on the same plane on the same side of the numerical control cutting machine; an output shaft of the spindle motor is connected with an eccentric spindle through a driving wheel, the eccentric spindle is fixed with one end of a piston arranged in a sealed cavity through a connecting rod, the other end of the piston is connected with one end of a pull rod, the other end of the pull rod is connected with one end of a sliding block, and the other end of the sliding block is connected with the blade. In the invention, the spindle motor transmits rotary motion through the synchronous belt pulley, and the eccentric spindle converts the rotary motion into reciprocating motion through the pull rod, the connecting rod and the piston, so that the large-stroke reciprocating motion is realized, and the production efficiency is improved.
The utility model discloses improve the structure of link assembly and cut-off knife on this basis, can realize assembling the cut-off knife of different length, and rotate between cut-off knife and link assembly and be connected, the direction that the cutting edge of cut-off knife advanced with the trajectory line when being convenient for tailor is unanimous.
Meanwhile, the utility model discloses a set up great eccentric distance (be greater than the eccentricity 12.5mm commonly used on the market), increase eccentric distance and though improve the cutting performance of cutting bed, nevertheless because the axle is eccentric mechanism, goes up and has the heavy object again, because the effect of centrifugal force inevitably causes vibrations and noise during high-speed rotatory, eccentric distance is big more, noise and vibrations are more obvious, can not reach GB/T14574-2000 the noise standard of numerical control cutting bed of marking and verifying of machine and equipment noise emission value.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, an object of the present invention is to provide an eccentric shaft vibrating knife device with a balance weight.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an eccentric shaft vibration sword device with balancing piece, including power unit, eccentric wheel mechanism, link assembly and cut-off knife, power unit is connected with the transmission of eccentric wheel mechanism, eccentric wheel mechanism passes through link assembly and is connected with the cut-off knife, be equipped with the balancing piece on the eccentric wheel mechanism.
In the technical characteristics, the eccentric wheel mechanism comprises an eccentric main shaft, an eccentric inertia shaft for sleeving the connecting rod assembly is arranged on one end face of the eccentric main shaft, and the eccentricity D between the eccentric main shaft and the eccentric inertia shaft is 15-30 mm;
the balance block is fixedly arranged on the end face, provided with the eccentric inertia shaft, of the eccentric main shaft, when the eccentric main shaft is static or rotates, the distance H between the center of the eccentric main shaft and a static balance gravity center A formed by the balance block and a connecting rod assembly sleeved on the eccentric inertia shaft is within 5mm, wherein the static balance gravity center A is the resultant force point of the center of gravity E of the connecting rod assembly sleeved on the eccentric inertia shaft and the center of gravity F of the balance block.
In the technical characteristics, the connecting rod assembly is horizontally and rotatably connected with the cut-off knife.
In the technical characteristics, the power mechanism is connected with the eccentric wheel mechanism through gear transmission or conveyor belt transmission.
In the technical characteristics, the power mechanism is in transmission connection with the eccentric wheel mechanism through a gear;
the power mechanism comprises a spindle motor, an eccentric spindle of the eccentric wheel mechanism is fixed on a spindle mounting seat through a bearing, the spindle mounting seat is connected with an upright frame arranged above the numerical control cutting bed in a sliding mode through a sliding plate, the spindle mounting seat is fixed on one side, far away from the upright frame, of the sliding plate, and the sliding plate is connected with the upright frame in a sliding mode; the spindle motor is fixed on one side of the sliding plate close to the vertical frame and moves up and down along with the sliding plate in a channel reserved in the vertical frame;
and the motor wheel arranged on the output shaft of the spindle motor is in transmission connection with an eccentric spindle wheel gear arranged at one end of the eccentric spindle far away from the eccentric inertia shaft.
In the technical characteristics, the power mechanism is in transmission connection with the eccentric wheel mechanism through a conveying belt;
the power mechanism comprises a spindle motor, and the spindle motor is fixed on one side of the vertical frame of the numerical control cutting machine; an eccentric main shaft of the eccentric wheel mechanism is fixed on a main shaft mounting seat through a bearing, and the main shaft mounting seat is connected with the vertical frame in a sliding mode through a sliding plate;
the end face of one side, facing the upright frame, of the eccentric main shaft is provided with an eccentric main shaft wheel, a first restraint wheel and a second restraint wheel, the top of the end face of one side, facing the main shaft mounting seat, of the upright frame is provided with a tension wheel, and the eccentric 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 characteristics, 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.
In the technical characteristics, a rotating body is further arranged below the main shaft mounting seat, the rotating body 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 a 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 characteristic, link assembly includes first connecting rod and second connecting rod, first connecting rod pot head is established on the eccentric inertia axle of eccentric wheel mechanism, and the other end is fixed with the second connecting rod through first piston, 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.
In the above technical features, a rotating body is further disposed below the spindle mounting seat, the rotating body includes 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.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, spindle motor passes through gear engagement or conveyer belt transmission rotary motion, is converted into reciprocating motion to rotary motion through link assembly by eccentric wheel mechanism, realizes big stroke reciprocating motion to improve 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 utility model discloses there is following advantage: 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. The utility model discloses a set up the balancing piece at eccentric wheel mechanism, the distance H of the combination force point (static balance focus A promptly) and the eccentric main shaft centre of a circle of the link assembly and the balancing piece that cup joint on the eccentric inertia axle is within 5mm all the time to eliminate most unbalanced force on the eccentric inertia axle, because the effect of centrifugal force causes vibrations and noise when reducing high-speed rotation. Meanwhile, when the eccentric distance is increased and the cutting capacity of the blade is improved, the mode of adding the balance block is adopted, and the noise and the vibration caused by the increase of unbalanced force are avoided.
3. Providing different power mechanisms, and selecting a main shaft motor to move along with a sliding plate and to be driven by a gear or a main shaft motor to be fixed and to be driven by a synchronous belt according to different cloth cutting, wherein the main shaft motor can be fixed to achieve the purpose of transmission when cutting the superhard material;
4. the utility model discloses in, rotate between cut-off knife and link assembly and be connected, the direction that the cutting edge of cut-off knife and trajectory line go forward when being convenient for tailor is unanimous. Meanwhile, cutters with different lengths can be assembled.
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 schematic view of the connection between the balance weight and the eccentric wheel mechanism according to the present invention;
FIG. 8a is a schematic view of the position of the first balance center of gravity A when the eccentric main shaft is in the first position;
FIG. 8b is a schematic view of the position of the first balance center of gravity A when the eccentric main shaft is in the second position;
FIG. 8c is a schematic view of the position of the first balance center of gravity A when the eccentric main shaft is in the third position;
FIG. 8d is a schematic view of the position of the first balance center of gravity A when the eccentric main shaft is in the fourth position;
fig. 9 is a front sectional view of the upper fixed cutter body, the cutter and the rotary body;
fig. 10 is a side sectional view of the upper fixed cutter body, the cutter and the rotary body according to the present invention;
in fig. 8a to 8d, E represents the position of the center of gravity of the link assembly, F represents the position of the center of gravity of the balance weight, and a represents the position of the resultant force of the center of gravity of the link assembly and the center of gravity of the balance weight;
h represents the distance between the static balance gravity center A and the center of the eccentric main shaft; 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; 2.2, an eccentric inertia shaft; 2.3, eccentric 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. a vertical frame; 7.1, a tension wheel; 7.2, shaft lever; 7.3, tightening the bolts; 7.4, locking the nut; 7.5, linear guide rails; 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 weight.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, how to implement the present invention is further explained below with reference to the accompanying drawings and the detailed description.
The utility model provides an eccentric shaft vibration sword device with balancing piece, including power unit 1, eccentric wheel mechanism 2, link assembly 3 and cut-off knife 4, power unit 1 is connected with 2 transmissions of eccentric wheel mechanism, eccentric wheel mechanism 2 is connected with cut-off knife 4 through link assembly 3, link assembly 3 is the level with cut-off knife 4 and rotates and be connected, be equipped with balancing piece 12 on the eccentric wheel mechanism 2.
The eccentric wheel mechanism 2 comprises an eccentric main shaft 2.1, an eccentric inertia shaft 2.2 for sleeving the connecting rod assembly 3 is arranged on one end face of the eccentric main shaft 2.1, and the eccentricity D between the eccentric main shaft 2.1 and the eccentric inertia shaft 2.2 is 15-30 mm;
the end face of the eccentric main shaft 2.1 provided with the eccentric inertia shaft 2.2 is fixedly provided with the balance block 12, when the eccentric main shaft 2.1 is static or rotates, the distance H between the static balance gravity center A formed by the balance block 12 and the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 and the circle center of the eccentric main shaft 2.1 is within 5mm, wherein the static balance gravity center A is the 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 balance block 12.
Wherein, the balance weight 12 is a fan-shaped balance weight.
As shown in fig. 8a to 8d, in the rotation process of the eccentric main shaft 2.1, the balance weight 12 and the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 rotate with each other to form static balance (the distance between the center of gravity a of the static balance formed by the balance weight 12 and the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 and the center of the circle of the eccentric main shaft 2.1 is within 5 mm); the eccentric main shaft 2.1 rotates along with the eccentric inertia shaft, the gravity center of the connecting rod assembly 3 and the gravity center of the balance block 12 which are sleeved on the eccentric inertia shaft 2.2 are changed, and the distance H between the resultant force point (namely the static balance gravity center A) of the connecting rod assembly 3 and the balance block 12 which are sleeved on the eccentric inertia shaft 2.2 and the circle center of the eccentric main shaft 2.1 is always within 5mm, so that most of unbalanced force on the eccentric inertia shaft is eliminated, and vibration and noise caused by the action of centrifugal force during high-speed rotation are reduced.
Example 1
As shown in fig. 1 to 3, the embodiment provides an eccentric shaft vibrating knife device with a balance block, which includes a power mechanism 1, an eccentric wheel mechanism 2, a connecting rod assembly 3 and a cutting knife 4, wherein the power mechanism 1 and the eccentric wheel mechanism 2 are arranged in a relative sliding manner, and the power mechanism 1 and the eccentric wheel mechanism 2 are in transmission connection through a conveyor belt;
the power mechanism 1 comprises a spindle motor 1.1, and the spindle motor 1.1 is fixed on one side, above the numerical control cutting machine, of the vertical frame 7; the eccentric wheel mechanism 2 comprises an eccentric main shaft 2.1, an eccentric inertia shaft 2.2 for sleeving the connecting rod assembly 3 is arranged on one end face of the eccentric main shaft 2.1, and the eccentricity D between the eccentric main shaft 2.1 and the eccentric inertia shaft 2.2 is 15-30 mm;
as shown in fig. 7 and fig. 8a to 8d, the balance weight 12 is fixedly disposed on the end surface of the eccentric main shaft 2.1 having the eccentric inertia shaft 2.2, and when the eccentric main shaft 2.1 is stationary or rotating, the distance H between the center of the eccentric main shaft 2.1 and the static balance center of gravity a formed by the balance weight 12 and the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 is within 5mm, where the static balance center of gravity a is the resultant force point of the center of gravity E of the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 and the center of gravity F of the balance weight 12. Wherein, the balance weight 12 is a fan-shaped balance weight.
The eccentric main shaft 2.1 is fixed on a main shaft mounting seat 5 through a bearing, and the main shaft mounting seat 5 is connected with an upright frame 7 in a sliding manner through a sliding plate 6; specifically, a linear sliding block 6.1 arranged on one side of the sliding plate 6 facing the vertical frame 7 is matched with a linear guide rail 7.5 arranged on one side of the vertical frame 7 facing the sliding plate 6 in a sliding manner.
The end face of one side, facing the upright frame 7, of the eccentric spindle 2.1 is provided with an eccentric spindle wheel 2.3, a first restraint wheel 2.4 and a second restraint wheel 2.5, the top, facing the end face of one side of the spindle mounting seat 5, of the upright frame 7 is provided with a tension wheel 7.1, and the eccentric spindle wheel 2.3 bypasses the tension wheel 7.1 through a conveying belt 8 and is in transmission connection with a motor wheel 1.2 of the spindle motor 1.1. For example, the belt 8 is wound in the manner shown in fig. 2 or 3, and the belt 8 is a timing belt or a belt.
In this embodiment, when cut-off knife length is longer, adopt first kind link assembly: as shown in fig. 1, the connecting rod assembly 3 includes 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 is connected with the handle of the cut-off knife 4 through a first piston 3.2, the handle of the cut-off knife 4 is fixed with the first piston 3.2 through a piston rotator 3.5 (the piston rotator 3.5 can be replaced by 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 (not shown in the figure) 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 an outer bearing seat 9.2, the inner seat rotating body 9.1 is supported on the outer bearing seat 9.2 in a rolling manner, and the outer bearing seat 9.2 is fixed on the sliding plate 6;
as shown in fig. 9 to 10, 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 part of the upper cutter fixing body 10 in a left-right symmetrical manner, the two lower bearings 10.2 are arranged at the lower end of the middle part of the upper cutter fixing 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 at the center of the upper cutter fixing 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, the first middle bearing 10.3 is positioned below one side of the two upper bearings 10.1, and 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 foreseen between the two upper bearings 10.1 and the two lower bearings 10.2.
In this embodiment, when cut-off knife length is shorter, adopt the link assembly of second kind: as shown in fig. 4, the connecting rod assembly 3 includes a first connecting rod 3.1 and a second connecting rod 3.3, a pot head of the first connecting rod 3.1 is arranged 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 cutting knife 4 through a second piston 3.4, and the handle of the cutting knife 4 is fixed with the second piston 3.4 through a piston rotator 3.5 or a coupler 3.6 and is connected with the second piston 3.4 in a horizontal rotation manner.
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 an outer bearing seat 9.2, the inner seat rotating body 9.1 is supported on the outer bearing seat 9.2 in a rolling manner, and the outer bearing 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 (not shown in the figure) arranged at the lower end of the main shaft mounting seat 5 and is in up-and-down sliding fit with the sealing cavity.
Example 2
As shown in fig. 5, the utility model provides an eccentric shaft vibrating knife device with a balance block, which comprises a power mechanism 1, an eccentric wheel mechanism 2, a connecting rod assembly 3 and a cut-off knife 4, wherein the power mechanism 1 and the eccentric wheel mechanism 2 are relatively fixed, and the power mechanism 1 and the eccentric wheel mechanism 2 are connected through gear engagement or transmission of a conveyor belt; the power mechanism comprises a spindle motor 1.1, the eccentric wheel mechanism 2 comprises an eccentric spindle 2.1, an eccentric inertia shaft 2.2 for sleeving the connecting rod assembly 3 is arranged on one end face of the eccentric spindle 2.1, and the eccentricity D between the eccentric spindle 2.1 and the eccentric inertia shaft 2.2 is 15-30 mm;
as shown in fig. 7 and fig. 8a to 8d, the balance weight 12 is fixedly disposed on the end surface of the eccentric main shaft 2.1 having the eccentric inertia shaft 2.2, and when the eccentric main shaft 2.1 is stationary or rotating, the distance H between the center of the eccentric main shaft 2.1 and the static balance center of gravity a formed by the balance weight 12 and the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 is within 5mm, where the static balance center of gravity a is the resultant force point of the center of gravity E of the connecting rod assembly 3 sleeved on the eccentric inertia shaft 2.2 and the center of gravity F of the balance weight 12. Wherein, the balance weight 12 is a fan-shaped balance weight.
The eccentric spindle 2.1 is fixed on a spindle mounting seat 5 through a bearing, the spindle mounting seat 5 is in sliding connection with an upright frame 7 arranged above a numerical control cutting bed (not shown in the figure) through a sliding plate 6, the spindle mounting seat 5 is fixed on one side, far away from the upright frame 7, of the sliding plate 6, and the spindle motor 1.1 is fixed on one side, close to the upright frame 7, of the sliding plate 6; when the spindle motor works, the spindle motor 1.1 moves up and down along with the sliding plate 6 on a channel reserved in the vertical frame 7;
the output shaft of the spindle motor 1.1 is provided with a motor wheel 1.2, and the motor wheel 1.2 is connected with an eccentric 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 of a conveyor belt. When the spindle motor 1.1 is engaged with the eccentric spindle 2.1, the motor wheel 1.2 and the eccentric spindle wheel 2.3 are both gears. When the spindle motor 1.1 is in transmission connection with the eccentric spindle 2.1 through a conveyor belt, the conveyor belt is a synchronous belt or a flat belt; an eccentric main shaft wheel 2.3 arranged on the eccentric main shaft 2.1 and a motor wheel 1.2 arranged on the main shaft motor can be set as a synchronous belt wheel and a flat belt wheel according to the type of the conveying belt.
In this embodiment, when cut-off knife length is longer, adopt first kind link assembly: as shown in fig. 5, the connecting rod assembly 3 includes 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 is connected with the handle of the cut-off knife 4 through a first piston 3.2, the handle of the cut-off knife 4 is fixed with the first piston 3.2 through a piston rotator 3.5 (the piston rotator 3.5 can be replaced by 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 (not shown in the figure) 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 an outer bearing seat 9.2, the inner seat rotating body 9.1 is supported on the outer bearing seat 9.2 in a rolling manner, and the outer bearing seat 9.2 is fixed on the sliding plate 6;
as shown in fig. 7 to 8, 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 part of the upper cutter fixing body 10 in a left-right symmetrical manner, the two lower bearings 10.2 are arranged at the lower end of the middle part of the upper cutter fixing 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 at the center of the upper cutter fixing 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, the first middle bearing 10.3 is positioned below one side of the two upper bearings 10.1, and 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 foreseen between the two upper bearings 10.1 and the two lower bearings 10.2.
In this embodiment, when cut-off knife length is shorter, adopt the link assembly of second kind: as shown in fig. 6, the connecting rod assembly 3 includes a first connecting rod 3.1 and a second connecting rod 3.3, a pot head of the first connecting rod 3.1 is arranged 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 cutting knife 4 through a second piston 3.4, and the handle of the cutting knife 4 is fixed with the second piston 3.4 through a piston rotator 3.5 or a coupler 3.6 and is connected with the second piston 3.4 in a horizontal rotation manner.
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 an outer bearing seat 9.2, the inner seat rotating body 9.1 is supported on the outer bearing seat 9.2 in a rolling manner, and the outer bearing 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 (not shown in the figure) arranged at the lower end of the main shaft mounting seat 5 and is in up-and-down sliding fit with the sealing cavity.
The utility model discloses in, further, the upper portion fixed mounting who fixes cutter body 10 or axle sleeve 11 at last has big fluted disc (not shown in the figure), and the drive wheel (not shown in the figure) meshing or the transmission that big fluted disc and rotating electrical machines (not shown in the figure) output shaft were equipped with are connected, and the rotating electrical machines is fixed at slide 6 or bearing outer support 9.2. The rotary motor drives the upper fixed cutter body 10 or the shaft sleeve 11 to rotate, thereby driving the cut-off knife 4 to rotate.
Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides an eccentric shaft vibration sword device with balancing piece, includes power unit (1), eccentric wheel mechanism (2), link assembly (3) and cut-off knife (4), its characterized in that, power unit (1) is connected with eccentric wheel mechanism (2) transmission, eccentric wheel mechanism (2) are connected with cut-off knife (4) through link assembly (3), be equipped with balancing piece (12) on eccentric wheel mechanism (2).
2. The eccentric shaft vibrating knife device with the balance weight according to claim 1, characterized in that the eccentric wheel mechanism (2) comprises an eccentric main shaft (2.1), an eccentric inertia shaft (2.2) for sleeving the connecting rod assembly (3) is arranged on one end face of the eccentric main shaft (2.1), and the eccentricity D between the eccentric main shaft (2.1) and the eccentric inertia shaft (2.2) is 15-30 mm;
the eccentric main shaft (2.1) is equipped with fixedly on the terminal surface of eccentric inertia axle (2.2) be equipped with balancing piece (12), when eccentric main shaft (2.1) is static or when rotating, the static balance focus A that link assembly (3) that cup joints on balancing piece (12) and the eccentric inertia axle (2.2) constitutes all is within 5mm with distance (H) of eccentric main shaft (2.1) centre of a circle, wherein, static balance focus (A) is the resultant force point of link assembly (3) focus (E) and balancing piece (12) focus (F) that cup joints on eccentric inertia axle (2.2).
3. The eccentric shaft vibrating knife device with balance weight according to claim 2, characterized in that the connecting rod assembly (3) is horizontally and rotatably connected with the cutting knife (4).
4. The eccentric shaft vibrating knife device with the balance weight according to claim 3, characterized in that the power mechanism (1) and the eccentric wheel mechanism (2) are fixed relatively or arranged in a sliding manner relatively.
5. The eccentric shaft vibrating knife device with the balance weight according to claim 4, characterized in that when the power mechanism (1) and the eccentric wheel mechanism (2) are fixedly arranged relatively, the power mechanism (1) and the eccentric wheel mechanism (2) are in gear engagement or transmission connection through a conveyor belt;
the power mechanism (1) comprises a spindle motor (1.1), an eccentric spindle (2.1) of the eccentric wheel mechanism (2) is fixed on a spindle mounting seat (5) through a bearing, the spindle mounting seat (5) is in sliding connection with an upright frame (7) arranged above the numerical control cutting machine through a sliding plate (6), the spindle mounting seat (5) is fixed on one side, far away from the upright frame (7), of the sliding plate (6), and the spindle motor (1.1) is fixed on one side, close to the upright frame (7), 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) along with the sliding plate (6);
the motor wheel (1.2) is arranged on an output shaft of the spindle motor (1.1), and the motor wheel (1.2) is connected with an eccentric spindle wheel (2.3) arranged at one end, far away from the eccentric inertia shaft (2.2), of the eccentric spindle (2.1) through meshing or transmission of a conveyor belt.
6. The eccentric shaft vibrating knife device with the balance weight according to claim 4, characterized in that when the power mechanism (1) and the eccentric wheel mechanism (2) are arranged in a relative sliding manner, the power mechanism (1) and the eccentric wheel mechanism (2) are in transmission connection through a conveyor belt;
the power mechanism (1) comprises a spindle motor (1.1), and the spindle motor (1.1) is fixed on one side of the vertical frame (7) above the numerical control cutting machine; an eccentric main shaft (2.1) of the eccentric wheel mechanism (2) is fixed on a main shaft mounting seat (5) through a bearing, and the main shaft mounting seat (5) is connected with an upright frame (7) in a sliding mode through a sliding plate (6);
eccentric main shaft (2.1) are equipped with eccentric main shaft wheel (2.3), first restraint wheel (2.4) and second restraint wheel (2.5) on the terminal surface towards erector (7) one side, erector (7) are equipped with tight pulley (7.1) that rises towards the top of main shaft mount pad (5) one side terminal surface, eccentric main shaft wheel (2.3) are walked around through conveyer belt (8) tight pulley (7.1) and motor wheel (1.2) looks transmission connection of spindle motor (1.1) rise.
7. The eccentric shaft vibrating knife device with the balance weight according to claim 5 or 6, 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 knife handle of the cut-off knife (4) through a first piston (3.2), and the knife 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 an up-and-down moving mode.
8. The eccentric shaft vibrating knife device with balance weight according to claim 7, characterized in that a rotating body (9) is arranged below the main shaft mounting seat (5), the rotating body (9) comprises an inner seat rotating body (9.1) and an outer bearing seat (9.2), the inner seat rotating body (9.1) is supported on an outer bearing seat (9.2) in a rolling way, and the outer bearing seat (9.2) is fixed on a 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).
9. The eccentric shaft vibrating knife device with the balance weight according to claim 5 or 6, characterized in that the connecting rod assembly (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), and 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 connected with the second piston (3.4) in a horizontal rotating manner.
10. The eccentric shaft vibrating knife device with balance weight according to claim 9, characterized in that a rotating body (9) is further provided below the main shaft mounting seat (5), the rotating body (9) comprises an inner seat rotating body (9.1) and an outer bearing seat (9.2), the inner seat rotating body (9.1) is supported on an outer bearing seat (9.2) in a rolling way, and the outer bearing 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085895.4U CN211199857U (en) | 2019-11-28 | 2019-11-28 | Eccentric shaft vibrating knife device with balance block |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085895.4U CN211199857U (en) | 2019-11-28 | 2019-11-28 | Eccentric shaft vibrating knife device with balance block |
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| CN211199857U true CN211199857U (en) | 2020-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654534A (en) * | 2022-03-28 | 2022-06-24 | 杭州爱科自动化技术有限公司 | Large-amplitude electric vibration knife balancing mechanism |
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- 2019-11-28 CN CN201922085895.4U patent/CN211199857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654534A (en) * | 2022-03-28 | 2022-06-24 | 杭州爱科自动化技术有限公司 | Large-amplitude electric vibration knife balancing mechanism |
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