CN110815318A - Cutter device with eccentric balance mechanism - Google Patents
Cutter device with eccentric balance mechanism Download PDFInfo
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- CN110815318A CN110815318A CN201911187788.0A CN201911187788A CN110815318A CN 110815318 A CN110815318 A CN 110815318A CN 201911187788 A CN201911187788 A CN 201911187788A CN 110815318 A CN110815318 A CN 110815318A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 123
- 230000005484 gravity Effects 0.000 claims abstract description 110
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 238000005520 cutting process Methods 0.000 claims description 48
- 238000007789 sealing Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000002146 bilateral effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 10
- 230000009471 action Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
- B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
- B26D1/085—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/08—Means for actuating the cutting member to effect the cut
- B26D5/16—Cam means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Testing Of Balance (AREA)
Abstract
The invention discloses a cut-off knife device with an eccentric balance mechanism, which comprises a power mechanism, an eccentric wheel mechanism, a connecting rod assembly and a cut-off knife, wherein the power mechanism is in transmission connection with the eccentric wheel mechanism, the eccentric wheel mechanism is connected with the cut-off knife through the connecting rod assembly, and the balance mechanism is arranged on the eccentric wheel mechanism. 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. According to the invention, the eccentric wheel mechanism is provided with the balance mechanism, 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 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.
Description
Technical Field
The invention relates to the technical field of numerical control cutting machines, in particular to a cutting knife device with an eccentric balance mechanism.
Background
The cutting bed used in the market at present can not work well because the eccentric radius of the eccentric shaft is less than or equal to 12.5mm, the patent with the publication number of 109944051A and the name of a main shaft vibrating knife for a numerical control cutting bed provides a main shaft vibrating knife for the numerical control cutting bed, which comprises a main shaft motor, an eccentric main shaft fixed on the numerical control cutting bed, 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 structure of the connecting component and the cut-off knife is improved on the basis, the cut-off knives with different lengths can be assembled, and the cut-off knife is rotatably connected with the connecting component, 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, the invention sets a larger eccentric distance (larger than the eccentric distance of 12.5mm commonly used in the market), and the increased eccentric distance improves the cutting performance of the cutting bed, but because the shaft is an eccentric mechanism and is attached with a heavy object, vibration and noise are inevitably generated due to the action of centrifugal force during high-speed rotation, the larger the eccentric distance is, the more obvious the noise and vibration are, and the noise standard of the numerical control cutting bed in GB/T14574-2000 marking and verification of noise emission values of machines and equipment can not be reached.
Disclosure of Invention
In order to solve the problems of the background art, the present invention provides a cutting device with an eccentric balancing mechanism.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a cut-off knife device with an eccentric balance mechanism, which comprises a power mechanism, an eccentric wheel mechanism, a connecting rod assembly and a cut-off knife, wherein the power mechanism is in transmission connection with the eccentric wheel mechanism, the eccentric wheel mechanism is connected with the cut-off knife through the connecting rod assembly, 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.
In the technical scheme, the eccentric shaft comprises an eccentric main shaft, an eccentric inertia shaft for sleeving the connecting rod assembly is arranged on the end surface 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 surface of the eccentric main shaft, which is 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, 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 balancing gravity center B of the balance wheel device.
In the technical characteristics, the power mechanism and the eccentric wheel mechanism are relatively fixed or relatively arranged in a sliding manner.
In the technical characteristics, 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 conveying belt;
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 spindle motor is fixed on one side, close to the upright 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;
the motor wheel is arranged on an output shaft of the spindle motor, and the motor wheel is connected with a first spindle wheel arranged at one end, far away from the eccentric inertia shaft, of the eccentric spindle through meshing or through a conveyor belt in a transmission manner.
In the technical characteristics, when the power mechanism and the eccentric wheel mechanism are arranged in a relative sliding manner, the power mechanism and the eccentric wheel mechanism are in transmission connection through the conveying belt;
the power mechanism comprises a spindle motor, and the spindle motor is fixed on one side of the vertical frame above 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 spindle is provided with a first spindle wheel, a first restraint wheel and a second restraint wheel, the top of the end face of one side, facing the spindle mounting seat, of the upright frame is provided with a tension wheel, and the first spindle wheel bypasses the tension wheel through a conveying belt and is in transmission connection with a motor wheel of a spindle 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, coupling assembling includes first connecting rod and second connecting rod, first connecting rod pot head is established on eccentric inertia axle of eccentric wheel mechanism, 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.
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 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. 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. 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.
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 showing the connection between the balance mechanism and the eccentric mechanism in embodiment 1 or embodiment 2;
fig. 8a 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. 8b 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. 9a 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. 8 a;
fig. 9b 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. 8 b;
fig. 10 is a schematic view showing the connection between the balance mechanism and the eccentric mechanism in embodiment 3 or embodiment 4;
fig. 11a 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. 11b 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. 12a 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. 11 a;
fig. 12b is a schematic diagram 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 diagram corresponds to fig. 11 b;
FIG. 13 is a front sectional view showing the connection of the upper stationary cutter body with the cutter and the rotary body according to the present invention;
FIG. 14 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. 8a to 8b and fig. 11a to 11b, 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, 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. 9a to 9B and 12a to 12B, 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. 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 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 member.
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.
The invention provides a cutter device with an eccentric balance mechanism, which comprises a power mechanism 1, an eccentric wheel mechanism 2, a connecting rod assembly 3 and a cutter 4, wherein the power mechanism 1 is in transmission connection with the eccentric wheel mechanism 2, the eccentric wheel mechanism 2 is connected with the cutter 4 through the connecting rod assembly 3, the connecting rod assembly 3 is in horizontal rotation connection with the cutter 4, 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 wheel device 12 comprises two balance wheels 12.1, the two balance wheels 12.1 are symmetrically arranged on the left side and the right side of the axial lead 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 a resultant gravity center point of the two second balancing weights 12.2 is a second balancing gravity center B of the balance wheel device 12.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a cutting device with an eccentric balance mechanism, including a power mechanism 1, an eccentric wheel mechanism 2, a connecting rod assembly 3, and a cutting knife 4, where the power mechanism 1 and the eccentric wheel mechanism 2 are arranged in a relatively sliding manner, and the power mechanism 1 and the eccentric wheel mechanism 2 are connected by a conveyor belt in a transmission manner;
the power mechanism 1 comprises a main shaft motor 1.1, the main shaft motor 1.1 is fixed on one side of a vertical frame 7 arranged above the numerical control cutting machine, 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 wheel device 12 comprises two balance wheels 12.1, the two balance wheels 12.1 are symmetrically arranged on 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 on one side, close to the power output end of the eccentric main shaft 2.1, of the main shaft mounting seat 5 (namely one side, far away from the vertical stand, of the main shaft mounting seat 5), 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;
as shown in fig. 7, a first tension wheel 12.3 is disposed above each balance wheel 12.1, each balance wheel 12.1 is synchronously driven by a corresponding first tension wheel 12.3, the two first tension wheels 12.3 are also in transmission connection with the two balance wheels 12.1 and the second spindle wheel 2.11 by a synchronous belt 12.5, so that the two balance wheels 12.1 rotate in the same direction, and the eccentric spindle wheel 2.11 rotates in the opposite direction to the two balance wheels 12.1.
Each balance wheel 12.1 is provided with a second balancing weight 12.2, and a resultant gravity center point of the two second balancing weights 12.2 is a second balancing gravity center B of the balance wheel device 12.
As shown in fig. 8a to 8B and fig. 9a to 9B, in the rotation process of the eccentric main shaft 2.1, the balance wheel device 12 and the eccentric wheel mechanism 2 form dynamic balance, as the eccentric main shaft 2.1 rotates, the gravity center (i.e. the first balance gravity center a) of the connecting rod assembly 3 and the first balancing weight 13 sleeved on the eccentric inertia shaft 2.2 and the second balance gravity center B of the balance wheel device 12 both change, and the resultant gravity center point C of the second balance gravity center B formed by the first balance gravity center a and the balance wheel device 12 is always located on the center of the circle of the eccentric main shaft 2.1, thereby eliminating most unbalanced force on the eccentric inertia shaft and reducing vibration and noise caused by the action of centrifugal force during high-speed rotation. Wherein, 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, namely a point a; the second balance center of gravity B is the resultant force point (i.e. the point of the line connecting the centers of gravity H) of the two second balance weights 12.1.
In this embodiment, the eccentric spindle 2.1 is fixed on a spindle mounting base 5 through a bearing, and the spindle mounting base 5 is slidably connected with an upright frame 7 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 eccentric spindle 2.1 is equipped with first main shaft wheel 2.3, first restraint wheel 2.4 and second restraint wheel 2.5 on the terminal surface (power input end) towards erector 7 one side, erector 7 is equipped with tight pulley 7.1 in the top towards 5 side terminal surfaces of main shaft mount pad, first main shaft wheel 2.3 is through conveyer belt 8 bypass tight pulley 7.1 and spindle motor 1.1's motor wheel 1.2 looks transmission connection. 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. 13 to 14, an upper fixed cutter body 10 is arranged in the inner seat rotary 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 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 an 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 a knife handle of the cutting knife 4 through a second piston 3.4, and the knife 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 invention provides a cutting knife device with an eccentric balance mechanism, which comprises 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 relatively and fixedly arranged, and the power mechanism 1 and the eccentric wheel mechanism 2 are in transmission connection through gear engagement or a conveyor belt;
the power mechanism comprises a main shaft motor 1.1, 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 wheel device 12 comprises two balance wheels 12.1, the two balance wheels 12.1 are symmetrically arranged on 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 on one side, close to the power output end of the eccentric main shaft 2.1, of the main shaft mounting seat 5 (namely one side, far away from the vertical stand, of the main shaft mounting seat 5), 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;
as shown in fig. 7, a first tension wheel 12.3 is disposed above each balance wheel 12.1, each balance wheel 12.1 is synchronously driven by a corresponding first tension wheel 12.3, the two first tension wheels 12.3 are also in transmission connection with the two balance wheels 12.1 and the second spindle wheel 2.11 by a synchronous belt 12.5, so that the two balance wheels 12.1 rotate in the same direction, and the eccentric spindle wheel 2.11 rotates in the opposite direction to the two balance wheels 12.1.
Each balance wheel 12.1 is provided with a second balancing weight 12.2, and a resultant gravity center point of the two second balancing weights 12.2 is a second balancing gravity center B of the balance wheel device 12.
As shown in fig. 8a to 8B and fig. 9a to 9B, in the rotation process of the eccentric main shaft 2.1, the balance wheel device 12 and the eccentric wheel mechanism 2 form dynamic balance, as the eccentric main shaft 2.1 rotates, the gravity center (i.e. the first balance gravity center a) of the connecting rod assembly 3 and the first balancing weight 13 sleeved on the eccentric inertia shaft 2.2 and the second balance gravity center B of the balance wheel device 12 both change, and the resultant gravity center point C of the second balance gravity center B formed by the first balance gravity center a and the balance wheel device 12 is always located on the center of the circle of the eccentric main shaft 2.1, thereby eliminating most unbalanced force on the eccentric inertia shaft and reducing vibration and noise caused by the action of centrifugal force during high-speed rotation. Wherein, 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, namely a point a; the second balance center of gravity B is the resultant force point (i.e. the point of the line connecting the centers of gravity H) of the two second balance weights 12.1.
In the embodiment, 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 in sliding connection with an upright frame 7 arranged above the numerical control cutting machine 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 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 a first spindle wheel 2.3 arranged at the power input end of the eccentric spindle 2.1 through meshing or transmission through 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. 13 to 14, an upper fixed cutter body 10 is arranged in the inner seat rotary 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 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 an 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 a knife handle of the cutting knife 4 through a second piston 3.4, and the knife 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 3
The structure of the present embodiment is similar to that of embodiment 1, except that the structure of the balance wheel device 12 is different, as shown in fig. 10, the balance wheel device 12 includes two balance wheels 12.1, the two balance wheels 12.1 are symmetrically disposed on the left and right sides of the axial lead of the eccentric main shaft 2.1, the two balance wheels 12.1 are disposed on one side of the main shaft mounting base 5 close to the power output end of the eccentric main shaft 2.1 (i.e., one side of the main shaft mounting base 5 away from the upright stand), and the two balance wheels 12.1 are in transmission connection with a second main shaft wheel 2.11 disposed on the power output end of the eccentric main shaft 2.1; a second tension wheel 12.4 is arranged above one of the balance wheels 12.1, the second tension wheel 12.4 is fixedly arranged on the spindle mounting base 5, and the second tension wheel 12.4, the two balance wheels 12.1 and a second spindle wheel 2.11 are in transmission connection through a synchronous belt 12.5, so that the two balance wheels 12.1 are opposite in rotation direction, and the second spindle wheel 2.11 and one of the balance wheels 12.1 are the same in rotation direction.
Each balance wheel 12.1 is provided with a second balancing weight 4.2, and the gravity center of the two second balancing weights 4.2 is the second balancing gravity center B of the balance wheel device 12.
As shown in fig. 11a to 11B and fig. 12a to 12B, in the rotation process of the eccentric main shaft 2.1, the balance wheel device 12 and the eccentric wheel mechanism 2 form dynamic balance, as the eccentric main shaft 2.1 rotates, the center of gravity (i.e. the first balance center of gravity a) of the connecting rod assembly 3 and the first counterweight block 13 sleeved on the eccentric inertia shaft 2.2 and the second balance center of gravity B of the balance wheel device 12 both change, and the resultant center of gravity C of the second balance center of gravity B formed by the first balance center of gravity a and the balance wheel device 12 is always located on the center of the circle of the eccentric main shaft 2.1, thereby eliminating most unbalanced force on the eccentric inertia shaft and reducing vibration and noise caused by the action of centrifugal force during high-speed rotation. Wherein, 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, namely a point a; the second balance center of gravity B is the resultant force point (i.e. the point of the line connecting the centers of gravity H) of the two second balance weights 12.1.
Example 4
The structure of the present embodiment is similar to that of embodiment 2, except that the structural arrangement of the balance wheel device 12 is different, and the structural arrangement of the balance wheel device 12 in the present embodiment is similar to that of embodiment 3.
The balance wheel device 12 in embodiments 1 to 4 is only for illustration and not for limitation, and other modifications or equivalent substitutions for the technical solution of the balance wheel device 12 also belong to the protection scope of the present invention.
In the present invention, a big fluted disc (not shown in the figure) is further fixedly installed on the upper portion of the upper fixed cutter body 10 or the shaft sleeve 11, the big fluted disc is engaged or in transmission connection with a driving wheel (not shown in the figure) arranged on an output shaft of a rotating motor (not shown in the figure), and the rotating motor is fixed on the sliding plate 6 or the bearing outer base 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, the above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The cut-off knife device with the eccentric balance mechanism comprises a power mechanism (1), an eccentric wheel mechanism (2), a connecting rod assembly (3) and a cut-off knife (4), and is characterized in that the power mechanism (1) is in transmission connection with the eccentric wheel mechanism (2), the eccentric wheel mechanism (2) is connected with the cut-off knife (4) through the connecting rod assembly (3), 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.
2. The cutting knife device with the eccentric balancing mechanism according to claim 1, characterized in that 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 at the end surface 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 the end surface of the eccentric main shaft (2.1) provided with the eccentric inertia shaft (2.2) is further provided with a first balancing weight (13);
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 knife device with the eccentric balance mechanism 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), 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 force point of the gravity centers of the two second balancing weights (12.2) is the second balancing gravity center (B) of the balance wheel device (12).
4. The cutting device with eccentric balancing mechanism according to claim 2, characterized in that the power mechanism (1) and the eccentric mechanism (2) are fixed or arranged in a sliding manner.
5. The cutting knife device with the eccentric balancing mechanism according to claim 4, characterized in that when the power mechanism (1) and the eccentric mechanism (2) are fixedly arranged relatively, the power mechanism (1) and the eccentric mechanism (2) are connected through gear engagement or belt transmission;
the power mechanism 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 a first 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 through transmission of a conveyor belt.
6. The cutting knife device with the eccentric balance mechanism according to claim 4, characterized in that 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 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 first 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, first 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 cut-off knife device with the eccentric balance mechanism 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 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 an up-and-down moving mode.
8. The cutting knife device with eccentric balancing mechanism according to claim 7, 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 manner, and the outer bearing 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).
9. The cut-off knife device with eccentric balance mechanism of claim 5 or 6, characterized in that, the coupling assembling (3) includes the first connecting rod (3.1) and the 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 is fixed with the second connecting rod (3.3) through the first piston (3.2), the second connecting rod (3.3) is connected with the handle of the cut-off knife (4) through the second piston (3.4), the handle of the cut-off knife (4) is fixed with the second piston (3.4) through the piston rotator (3.5) or the shaft coupling (3.6) and is connected with the second piston (3.4) in horizontal rotation.
10. The cutting knife device with eccentric balancing mechanism 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 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 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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| CN201911187788.0A CN110815318B (en) | 2019-11-28 | 2019-11-28 | Cutter device with eccentric balance mechanism |
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| CN111376324A (en) * | 2020-04-29 | 2020-07-07 | 沈笠 | Soft material cutting machine head and cutting device |
| CN111394984A (en) * | 2020-03-25 | 2020-07-10 | 长园装备制造有限公司 | Cutting machine head and cutting machine carrying same |
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| CN109910075A (en) * | 2019-03-29 | 2019-06-21 | 中山市中科智能制造研究院有限公司 | A kind of reciprocating cutter mechanism |
| CN109944051A (en) * | 2019-04-04 | 2019-06-28 | 武汉科普易能科技有限公司 | A kind of spindle vibration knife for numerical control cutting |
| CN211137269U (en) * | 2019-11-28 | 2020-07-31 | 武汉科普易能科技有限公司 | Cut-off knife device with eccentric balance mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394984A (en) * | 2020-03-25 | 2020-07-10 | 长园装备制造有限公司 | Cutting machine head and cutting machine carrying same |
| CN111376324A (en) * | 2020-04-29 | 2020-07-07 | 沈笠 | Soft material cutting machine head and cutting device |
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| CN110815318B (en) | 2023-12-01 |
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