A vibrating knife module and cutting bed

Abstract

This invention provides a vibrating knife module and a cutting bed. The vibrating knife module includes a base, a reversing rotating seat rotatably mounted on the lower end of the base, a tool spindle movably inserted through the base and the reversing rotating seat, a vibration drive source mounted on the base, a torque transmission mechanism connected between the reversing rotating seat and the tool spindle, and a cutting blade mounted on the lower end of the tool spindle. The vibration drive source is drively connected to the tool spindle. The torque transmission mechanism includes an outer connecting sleeve fixed in the reversing rotating seat, an inner connecting sleeve fixed in the outer connecting sleeve, and a spindle outer sleeve fixed on the outer periphery of the tool spindle. The upper end of the outer connecting sleeve extends into the base and is rotatably supported in the base. The tool spindle is movably supported in the outer connecting sleeve. The inner connecting sleeve is splinedly connected to the spindle outer sleeve. This ensures that the tool spindle and the cutting blade can move smoothly up and down during the cutting process, and accurately transmits torque to the tool spindle and the cutting blade, reliably ensuring the cutting quality of the cut pieces.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting bed, in particular to a vibrating cutter module and a cutting bed comprising the vibrating cutter module. BACKGROUND

[0002] The cutting bed is a cutting device for automatically cutting pieces, which is widely used in the industries of textile and garment, automotive interior, furniture, luggage, outdoor products, etc. Generally, the cutting bed is equipped with a high-speed running cutter, which can walk along a pre-designed track to cut pieces of desired shape.

[0003] For different cutting objects, the types of cutters are also different, so that the cutting bed is equipped with multiple cutter modules, but the multiple cutter modules are all assembled in a head module of the cutting bed, which can drive the cutters in the cutter modules to move up and down and rotate for switching cutting positions. Therefore, the cutter module must have a torque transmission structure for transmitting torque output by the head module to the cutter. However, the existing cutter module cannot accurately and reliably transmit torque, which affects the cutting quality of the pieces. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a vibrating cutter module capable of accurately and reliably transmitting torque.

[0005] To achieve the above-mentioned purpose, the present application provides a vibrating cutter module, which comprises a base, a reversing rotating seat rotatably assembled at a lower end of the base, a cutter mandrel movably penetrating the base and the reversing rotating seat, a vibrating drive source mounted on the base, a torque transmission mechanism connected between the reversing rotating seat and the cutter mandrel, and a cutter mounted at a lower end of the cutter mandrel, the vibrating drive source is in transmission connection with the cutter mandrel to drive the cutter mandrel to move up and down, the torque transmission mechanism comprises an outer connecting sleeve fixed in the reversing rotating seat, an inner connecting sleeve fixed in the outer connecting sleeve, and a mandrel outer sleeve fixed on an outer periphery of the cutter mandrel, the upper end of the outer connecting sleeve extends into the base and is rotatably supported in the base, the cutter mandrel is movably supported in the outer connecting sleeve, and the inner connecting sleeve is in spline connection with the mandrel outer sleeve.

[0006] Further, the reversing rotating seat and the outer connecting sleeve are fixedly connected by tight fit and / or screwed, the outer connecting sleeve and the inner connecting sleeve are fixedly connected by tight fit, and the mandrel outer sleeve and the cutter mandrel are fixedly connected by tight fit and / or glued.

[0007] Further, a key groove is formed on the outer periphery of the reversing rotating seat, and the reversing rotating seat is connected with a reversing rotating sleeve in the head module by a key in the key groove.

[0008] Furthermore, the vibratory knife module also includes a vibration transmission mechanism that is connected between the vibration drive source and the tool spindle. The vibration drive source is a motor. The vibration transmission mechanism includes an eccentric shaft perpendicular to the tool spindle and an oscillator fixed to the upper end of the tool spindle. The eccentric shaft includes an eccentrically arranged first shaft segment and a second shaft segment. The first shaft segment of the eccentric shaft is fixedly connected to the motor shaft of the vibration drive source. The oscillator has an annular mounting groove on its outer periphery. The second shaft segment of the eccentric shaft is rotatably mounted in the annular mounting groove of the oscillator through a first bearing. The upper end of the outer connecting sleeve extends to the lower end of the oscillator.

[0009] Furthermore, the vibrating knife module also includes a knife fixing mechanism connected between the knife spindle and the cutting knife. The fixing mechanism includes a knife fixing seat threaded onto the lower end of the knife spindle, a knife fixing pin fixed in the knife fixing seat, and a fixing set screw. The knife fixing seat is supported vertically in a reversing rotating seat. The knife fixing pin has a vertically extending knife mounting groove. The knife mounting groove passes through the knife fixing pin radially along the knife spindle and downward through the lower end of the knife fixing pin. The upper end of the cutting knife is inserted into the knife mounting groove. The fixing set screw is tightened radially along the knife spindle in the knife fixing seat and the knife fixing pin. The fixing set screw, the cutting knife, and the knife fixing seat are sequentially pressed together.

[0010] Furthermore, the outer circumferential surface of the tool fixing pin is provided with an outer positioning plane, and the inner wall of the tool fixing seat is provided with an inner positioning plane, and the outer positioning plane and the inner positioning plane are in surface contact with each other.

[0011] Furthermore, the surface of the tool holder is coated with a titanium nitride coating, and the hardness of the tool fixing pin is HV650-750.

[0012] Furthermore, the vibrating knife module also includes a knife fixing mechanism connected between the knife spindle and the cutting knife, a connecting sleeve mounted on the outer periphery of the lower end of the reversing rotating seat, and a cutting disc mounted on the outer periphery of the lower end of the connecting sleeve. This part of the fixing mechanism and the cutting knife located outside the reversing rotating seat are housed in the connecting sleeve and the cutting disc. The lower end of the cutting disc is integrally provided with a bottom end plate, and the bottom end plate has a vertically penetrating knife groove, which only allows the cutting knife to extend downward from the cutting disc.

[0013] Furthermore, the vibrating knife module also includes a positioning pin and a fixing spring; the cutter disc has a radially penetrating first connecting groove, and the outer periphery of the connecting sleeve has a second connecting groove, and the fixing spring is detachably engaged in the first and second connecting grooves; the positioning pin is fixed in the cutter disc, and the connecting sleeve has a positioning pin hole that positions and cooperates with the positioning pin; the connecting sleeve and the reversing rotating seat are clearance-fitted and connected by a fixing screw, and the connecting sleeve also has a connecting hole for accommodating the fixing screw, which is an oblong hole extending vertically.

[0014] Furthermore, the vibrating knife module also includes a quick-change connecting block fixed to the outer periphery of the base. The quick-change connecting block has several circumferentially spaced connecting lugs fixed to its outer periphery. Each connecting lug is equipped with a ball screw, and the steel ball of the ball screw protrudes downward from the lower end of the connecting lug.

[0015] This application also provides a cutting bed in which a vibrating knife module as described above is configured.

[0016] As described above, the vibrating knife module and cutting bed of the present invention have the following beneficial effects:

[0017] In the aforementioned vibrating knife module, a vibration drive source drives the cutter spindle and the cutting blade to move up and down, providing the power for cutting. When switching cutting positions, the machine head module drives the reversing rotating seat to rotate. The reversing rotating seat, through a torque transmission mechanism, causes the cutter spindle and the cutting blade to rotate together through the same angle, changing the cutting direction of the cutting blade. In particular, the torque transmission mechanism adopts a structure in which an outer connecting sleeve, an inner connecting sleeve, and a spindle outer sleeve cooperate. Based on the spline connection between the inner connecting sleeve and the spindle outer sleeve, it can ensure that the cutter spindle and the cutting blade can move smoothly up and down during the cutting process, and accurately transmit torque to the cutter spindle and the cutting blade. Ultimately, it reliably ensures the cutting quality of the cut pieces, enhances the product competitiveness of the vibrating knife module in mid-to-high-end models, and is conducive to rapidly expanding domestic and overseas single-layer market customers such as clothing, advertising, composite materials, carpets, and mats. Attached Figure Description

[0018] Figure 1 and Figure 2 The diagram shows the structure of the vibrating knife module in this application from different perspectives.

[0019] Figure 3 This is a cross-sectional view of the vibrating knife module in this application.

[0020] Figure 4 for Figure 3 A schematic diagram of the torque transmission mechanism and the tool fixing mechanism.

[0021] Figure 5 This is a schematic diagram of the structure of the fixing pin in this application.

[0022] Figure 6 for Figure 3 A schematic diagram of the structure of the vibration transmission mechanism.

[0023] Figure 7 This is a schematic diagram of the cutter head structure in this application.

[0024] Figure 8 This is a schematic diagram of the quick-connect block in this application.

[0025] Figure 9 This is a schematic diagram of the structure of the ball screw in this application.

[0026] Figure 10 This is an assembly diagram of the vibrating knife module being assembled in the head module in this application.

[0027] Figure 11 for Figure 10 A schematic diagram of the structure of the mid-head module.

[0028] Figure 12 for Figure 11 Enlarged view of circle A.

[0029] Component designation explanation

[0030] 10 bases

[0031] 20 Reversing Rotary Seat

[0032] 201 keyway

[0033] 30 Tool mandrel

[0034] 40 Vibration drive source

[0035] 50 Torque transmission mechanism

[0036] 51 External connecting sleeve

[0037] 52 Inner Connecting Sleeve

[0038] 53 Spindle Jacket

[0039] 60 cutting knives

[0040] 70 Vibration transmission mechanism

[0041] 71 Eccentric Shaft

[0042] 711 First Axle Section

[0043] 712 Second Axle Section

[0044] 72 Oscillator

[0045] 721 Annular Assembly Groove

[0046] 73 Coupling

[0047] 80 Tool fixing mechanism

[0048] 81 Tool holder

[0049] 82 Knife pin

[0050] 821 Tool Mounting Slot

[0051] 822 External positioning plane

[0052] 83 Fixed set screw

[0053] 90 connecting sleeve

[0054] 91 Connecting hole

[0055] 110 cutter head

[0056] 111 Bottom end plate

[0057] 112 Tool Groove

[0058] 113 First connecting slot

[0059] 121 Positioning pin

[0060] 122 Fixed Spring

[0061] 123 Fixing screws

[0062] 130 Quick-connect Block

[0063] 131 Connecting lug

[0064] 140 ball screw

[0065] 141 steel balls

[0066] 151 First Bearing

[0067] 152 Second Bearing

[0068] 153 Third Bearing

[0069] 154 Fourth Bearing

[0070] 160 spacer

[0071] 170 limit nut

[0072] 180 Quick-change mounting bracket

[0073] 181 Limiting lug

[0074] 182 slots

[0075] 190 slot spacer

[0076] 191 snap-in recess Detailed Implementation

[0077] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0078] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0079] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0080] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0081] This application relates to a vibrating knife module and a cutting bed equipped with the vibrating knife module.

[0082] like Figures 1 to 3As shown, the vibrating knife module involved in this application includes a base 10, a reversing rotating seat 20, a vertically extending tool spindle 30, a vibration drive source 40, a torque transmission mechanism 50, and a cutting blade 60. The reversing rotating seat 20 is rotatably mounted on the lower end of the base 10; the vibration drive source 40 is mounted on the base 10 and is connected to the tool spindle 30, driving the tool spindle 30 to move vertically; the tool spindle 30 is movably inserted into the base 10 and the reversing rotating seat 20, and the cutting blade 60 is mounted on the lower end of the tool spindle 30. Figure 10 As shown, the base 10 consists of several fixedly connected shells, one of which extends vertically and is distributed on the upper side of the reversing rotating seat 20. This shell of the base 10 is used to install in the head module of the cutting bed, thereby installing the vibrating knife module as a whole in the head module. The head module has a rotary drive source and a reversing rotating sleeve driven by the rotary drive source. When the vibrating knife module is installed as a whole in the head module, the reversing rotating sleeve is connected to the reversing rotating seat 20 of the vibrating knife module and transmits torque to the reversing rotating seat 20. The torque transmission mechanism 50 is connected between the reversing rotating seat 20 and the cutter spindle 30 and transmits torque to the cutter spindle 30 and the cutting knife 60 at its lower end.

[0083] In particular, such as Figure 3 and Figure 4 As shown, the torque transmission mechanism 50 includes an outer connecting sleeve 51 fixed inside the reversing rotary seat 20, an inner connecting sleeve 52 fixed inside the outer connecting sleeve 51, and a spindle sleeve 53 fixed to the outer periphery of the tool spindle 30. Along the radial direction of the tool spindle 30, the reversing rotary seat 20, the outer connecting sleeve 51, the inner connecting sleeve 52, the spindle sleeve 53, and the tool spindle 30 are arranged sequentially from the outside to the inside. The outer connecting sleeve 51, the inner connecting sleeve 52, and the spindle sleeve 53 all extend axially in the vertical direction. Furthermore, the upper end of the outer connecting sleeve 51 extends into the base 10 and is rotatably supported in the base 10. The tool spindle 30 is movably supported in the outer connecting sleeve 51, that is, the tool spindle 30 is movably mounted in the base 10 and the reversing rotary seat 20 through the outer connecting sleeve 51. The inner connecting sleeve 52 is splinedly connected to the spindle sleeve 53.

[0084] During the cutting process, the vibration drive source 40 operates, driving the cutter spindle 30 and the cutting blade 60 at its lower end to move up and down. The cutting blade 60 then cuts the sheet, with the vibration drive source 40 providing the cutting power. When switching cutting positions, the rotation drive source in the machine head module activates, driving the reversing rotating sleeve to rotate through a set angle. The reversing rotating sleeve then drives the reversing rotating seat 20 to rotate through the same angle. The reversing rotating seat 20, through the torque transmission mechanism 50, then drives the cutter spindle 30 and the cutting blade 60 to rotate through the same angle together, thereby changing the cutting direction of the cutting blade 60. In particular, the torque transmission mechanism 50 adopts a structure in which an outer connecting sleeve 51, an inner connecting sleeve 52, and a mandrel outer sleeve 53 cooperate. The outer connecting sleeve 51 not only transmits torque but also reliably supports the up-and-down movement of the cutter mandrel 30. Based on the spline connection between the inner connecting sleeve 52 and the mandrel outer sleeve 53, it can ensure that the cutter mandrel 30 and the cutting blade 60 can move smoothly up and down during the cutting process, and accurately transmit torque to the cutter mandrel 30 and the cutting blade 60. Ultimately, it reliably ensures the cutting quality of the cut pieces, enhances the product competitiveness of the vibrating knife module in mid-to-high-end models, and is conducive to rapidly expanding domestic and overseas single-layer market customers such as clothing, advertising, composite materials, carpets, and floor mats.

[0085] Preferably, the fixing structure between the components in the torque transmission mechanism 50 is as follows: the reversing rotating seat 20 is tightly fitted and fixed to the outer connecting sleeve 51 with screws, the outer connecting sleeve 51 is tightly fitted and fixed to the inner connecting sleeve 52, and the spindle outer sleeve 53 is tightly fitted and fixed to the tool spindle 30 with adhesive or glue.

[0086] Furthermore, after the vibratory knife module is installed in the head module, the reversing rotating sleeve of the head module and the reversing rotating seat 20 of the vibratory knife module are preferably connected by a parallel key. This parallel key connection reliably transmits the torque of the reversing rotating sleeve to the reversing rotating seat 20. Based on this, as... Figure 2 As shown, a keyway 201 is provided on the outer peripheral surface of the reversing rotary seat 20, and the reversing rotary seat 20 is connected to the reversing rotary sleeve key in the head module through the flat key in the keyway 201.

[0087] Furthermore, the vibratory cutter module also includes a vibration transmission mechanism 70 connected between the vibration drive source 40 and the tool spindle 30. The vibratory cutter module drives the tool spindle 30 to move up and down reciprocally through the vibration transmission mechanism 70. The preferred structure of the tool spindle 30 is as follows: Figure 3 and Figure 6As shown, the vibration drive source 40 is a motor, preferably a stepper motor. The vibration transmission mechanism 70 includes an eccentric shaft 71 perpendicular to the tool spindle 30 and an oscillator 72 fixed to the upper end of the tool spindle 30. The eccentric shaft 71 includes an eccentrically arranged first shaft segment 711 and a second shaft segment 712. The first shaft segment 711 of the eccentric shaft 71 is fixedly connected to the motor shaft of the vibration drive source 40 through a coupling 73. The oscillator 72 has an annular mounting groove 721 on its outer periphery. The second shaft segment 712 of the eccentric shaft 71 is rotatably mounted in the annular mounting groove 721 of the oscillator 72 through a first bearing 151. The first bearing 151 is concentric with the second shaft segment 712. In this way, the vibration drive source 40 drives the tool spindle 30 to move up and down reciprocally through the eccentric shaft 71 and the oscillator 72. Preferably, the eccentric shaft 71 is rotatably supported in the base 10 by the second bearing 152, and the second bearing 152 is concentric with the first shaft segment 711, so the first bearing 151 and the second bearing 152 are eccentrically positioned.

[0088] Furthermore, such as Figure 3 As shown, the vibration drive source 40 is connected to the upper end of the tool spindle 30, and the cutting blade 60 is installed at the lower end of the tool spindle 30, making the tool spindle 30 a slender shaft. To improve the stability of the tool spindle 30's vertical movement within the base 10 and the reversing rotary seat 20, as follows... Figure 3 As shown, the upper end of the outer connecting sleeve 51 extends to the lower end of the oscillator 72, and the lower part of the oscillator 72 is located between the upper end of the tool spindle 30 and the upper end of the outer connecting sleeve 51. This part of the oscillator 72 is supported in the outer connecting sleeve 51 by means of the third bearing 153, which is a linear bearing.

[0089] Preferably, such as Figure 3 As shown, the outer connecting sleeve 51 is also rotatably supported in the base 10 by two fourth bearings 154. The two fourth bearings 154 are respectively located at the upper end and the middle position of the outer connecting sleeve 51. A spacer 160 abuts between the two fourth bearings 154, and there is a gap between the inner wall surface of the spacer 160 and the outer peripheral surface of the outer connecting sleeve 51. The base 10 has a limit nut 170 threadedly connected to the lower end of the fourth bearing 154 on the lower end side. The limit nut 170 abuts against the lower end of the fourth bearing 154 on the lower end side to achieve axial limiting.

[0090] Furthermore, the vibrating knife module also includes a knife-fixing mechanism 80 connected between the tool spindle 30 and the cutting blade 60, with the cutting blade 60 mounted on the lower end of the tool spindle 30 via the knife-fixing mechanism 80. A preferred structure for the knife-fixing mechanism 80 is as follows: Figures 3 to 5As shown, the fixing mechanism includes a tool fixing seat 81, a tool fixing pin 82, and a fixing set screw 83. The tool fixing seat 81 is threaded onto the lower end of the tool spindle 30. The tool fixing pin 82 is fixed inside the tool fixing seat 81. The tool fixing seat 81 is supported in the reversing rotating seat 20, which can move up and down. The tool fixing pin 82 has a tool mounting groove 821 extending up and down. The tool mounting groove 821 passes through the tool fixing pin 82 radially along the tool spindle 30 and downward through the lower end of the tool fixing pin 82. The upper end of the cutting blade 60 is inserted into the tool mounting groove 821. The fixing set screw 83 is tightened radially along the tool spindle 30 in the tool fixing seat 81 and the tool fixing pin 82. The fixing set screw 83, the cutting blade 60, and the tool fixing seat 81 are pressed together in sequence, thereby fixing the cutting blade 60 in the tool fixing pin 82. During the up-and-down movement of the cutter spindle 30 driven by the vibration drive source 40, the cutter fixing seat 81 drives the tool fixing pin 82 to move up and down together with the cutter spindle 30. Under the action of the fixing set screw 83, the tool fixing pin 82 drives the cutting blade 60 to move up and down together with the cutter spindle 30 for cutting. When switching cutting positions, the reversing rotating seat 20 drives the cutter spindle 30 to rotate through the same angle through the torque transmission mechanism 50. The cutter spindle 30 drives the cutting blade 60 to rotate through the same angle through the cutter fixing seat 81, the tool fixing pin 82, and the fixing set screw 83. Therefore, the cutting blade 60 moves synchronously with the cutter spindle 30 through the tool fixing mechanism 80.

[0091] Preferably, in the fixing mechanism involved in this application, the lower end of the tool fixing seat 81 and the tool spindle 30 are threaded together, i.e., detachable, allowing for easy disassembly of the tool fixing seat 81 and convenient replacement of the cutting blade 60. During the replacement of the cutting blade 60, the tool fixing seat 81 and the tool fixing pin 82 need to be repeatedly disassembled and reassembled, and the tool fixing pin 82 is an open component. Therefore, the surface of the tool fixing seat 81 is coated with a titanium nitride coating to increase its hardness and wear resistance, resulting in a longer service life and greater durability. Similarly, the hardness of the tool fixing pin 82 is HV650-750, increasing its hardness and wear resistance, thus also resulting in a longer service life and greater durability.

[0092] Furthermore, such as Figure 4 and Figure 5 As shown, the outer circumferential surface of the tool fixing pin 82 is provided with an outer positioning plane 822, which is located on the side opposite to the fixing set screw 83; the inner wall of the tool holder 81 is provided with an inner positioning plane; the outer positioning plane 822 and the inner positioning plane are in surface contact to realize the positioning of the tool fixing pin 82 when it is installed into the tool holder 81, and the surface contact structure can also improve the accuracy and reliability of torque transmission.

[0093] Furthermore, such as Figures 1 to 3As shown, the vibrating knife module also includes a connecting sleeve 90 mounted on the outer periphery of the lower end of the reversing rotating seat 20, and a cutter disc 110 mounted on the outer periphery of the lower end of the connecting sleeve 90. This part of the fixing mechanism and the cutting knife 60 located outside the reversing rotating seat 20 are housed in the connecting sleeve 90 and the cutter disc 110. The lower end of the cutter disc 110 is integrally provided with a bottom end plate 111, and a vertically penetrating cutter groove 112 is provided in the bottom end plate 111. The cutter groove 112 only allows the cutting knife 60 to extend downward from the cutter disc 110, which plays a good role in protection and dust prevention.

[0094] Preferably, such as Figure 1 , Figure 2 and Figure 7 As shown, the vibrating knife module also includes a positioning pin 121 and a fixing spring 122; a radially penetrating first connecting groove 113 is provided in the cutter head 110, and a second connecting groove is provided on the outer periphery of the connecting sleeve 90. The fixing spring 122 is detachably engaged in the first connecting groove 113 and the second connecting groove to achieve quick release of the cutter head 110. The positioning pin 121 is fixed in the cutter head 110, and the connecting sleeve 90 is provided with a positioning pin hole that engages with the positioning pin 121; the connecting sleeve 90 and the reversing rotating seat 20 are clearance-fitted and connected by a fixing screw 123. The connecting sleeve 90 is also provided with a connecting hole 91 for accommodating the fixing screw 123. The connecting hole 91 is an oblong hole that extends vertically to achieve positioning of the cutter head 110 with the connecting sleeve 90 during installation.

[0095] Furthermore, such as Figure 1 and Figure 2 As shown, the vibratory knife module also includes a quick-change connecting block 130 fixed to the outer periphery of the base 10. The vibratory knife module achieves quick-change within the head module through the quick-change connecting block 130. Specifically, as... Figure 8 and Figure 9 As shown, the quick-change connecting block 130 has three circumferentially spaced connecting lugs 131 fixed on its outer periphery. Each connecting lug 131 houses two ball screws 140. Each ball screw 140 has a retractable steel ball 141. Inside the ball screw 140 is a spring that abuts against the steel ball 141. This spring causes the steel ball 141 at the lower end of the ball screw 140 to protrude downwards from the lower end of the connecting lug 131, and also causes the steel ball 141 to retract upwards into the ball screw 140. Figures 10 to 12As shown, the head module has a quick-change mounting base 180. The upper end of the quick-change mounting base 180 is provided with three circumferentially spaced limiting lugs 181 and three slots 182 formed between two adjacent limiting lugs 181. The head module is provided with a locking pad 190 fixed to the quick-change mounting base 180 and a pre-tightening O-ring abutting against the lower end of the locking pad 190 at the lower end of the quick-change mounting base 180. The upper surface of the locking pad 190 is provided with several recessed locking recesses 191. When installing the vibratory knife module in the head module, first remove the cutter disc 110 at the lower end of the vibratory knife module; insert the vibratory knife module into the quick-change mounting base 180 from top to bottom, aligning the connecting lug 131 of the vibratory knife module with the slot 182 of the head module; after the vibratory knife module is inserted into the lower part, rotate the vibratory knife module by an angle until the steel balls 141 at the lower end of the several ball screws 140 of the vibratory knife module are just locked into the locking recess 191 of the head module. At this time, the limiting lug 181 of the head module just abuts against the upper side of the connecting lug 131 of the vibratory knife module, and the locking gasket 190 of the head module abuts against the lower side of the connecting lug 131 of the vibratory knife module, and the elastic pre-tightening O-ring provides pre-tightening force to eliminate axial clearance and realize the axial limiting of the quick-change connecting block 130 in the head module, preventing the vibratory knife module from axially moving relative to the quick-change mounting base 180 of the head module.

[0096] In summary, the vibrating knife module involved in this application can reliably transmit reversing torque, facilitate the replacement of the cutting blade 60, and enable quick disassembly in the head module, giving it excellent product competitiveness in mid-to-high-end models.

[0097] Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0098] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A vibrating knife module, comprising a base (10), a commutating rotary seat (20) rotatably assembled at a lower end of the base (10), a knife spindle (30) movably penetrating in the base (10) and the commutating rotary seat (20), a vibrating drive source (40) installed on the base (10), a torque transmission mechanism (50) connected between the commutating rotary seat (20) and the knife spindle (30), and a cutting knife (60) installed at a lower end of the knife spindle (30), the vibrating drive source (40) and the knife spindle (30) being in transmission connection, driving the knife spindle (30) to move up and down, characterized in that: The torque transmission mechanism (50) comprises an outer connecting sleeve (51) fixed in the reversing rotating seat (20), an inner connecting sleeve (52) fixed in the outer connecting sleeve (51), and a core shaft outer sleeve (53) fixed on the outer periphery of the tool core shaft (30), the upper end of the outer connecting sleeve (51) extends into the base (10) and is rotatably supported in the base (10), the tool core shaft (30) is movably supported in the outer connecting sleeve (51), and the inner connecting sleeve (52) is splined with the core shaft outer sleeve (53). The vibration cutter module further comprises a cutter fixing mechanism (80) connected between the tool core shaft (30) and the cutting knife (60), the cutter fixing mechanism (80) comprises a cutter fixing seat (81) detachably screwed on the lower end of the tool core shaft (30), a cutter fixing pin (82) fixed in the cutter fixing seat (81), and a fixing stud (83), the cutter fixing seat (81) is movably supported in the reversing rotating seat (20), the cutter fixing pin (82) is provided with a cutter mounting groove (821) extending upward and downward, the cutter mounting groove (821) penetrates the cutter fixing pin (82) in the radial direction of the tool core shaft (30) and penetrates the lower end of the cutter fixing pin (82) downward, the upper end of the cutting knife (60) is inserted into the cutter mounting groove (821), the fixing stud (83) is screwed in the cutter fixing seat (81) and the cutter fixing pin (82) in the radial direction of the tool core shaft (30), the fixing stud (83), the cutting knife (60) and the cutter fixing seat (81) are in close contact in sequence, the surface of the cutter fixing seat (81) is coated with a titanium nitride coating, and the hardness of the cutter fixing pin (82) is HV650-750. An outer positioning plane (822) is arranged on the outer periphery of the cutter fixing pin (82), and an inner positioning plane is arranged on the inner wall of the cutter fixing seat (81), and the outer positioning plane (822) and the inner positioning plane are in surface contact.

2. The vibrating knife module of claim 1, wherein: The reversing rotating seat (20) and the outer connecting sleeve (51) are tightly fitted and / or screwed, the outer connecting sleeve (51) and the inner connecting sleeve (52) are tightly fitted, and the core shaft outer sleeve (53) and the tool core shaft (30) are tightly fitted and / or glued.

3. The vibrating knife module of claim 1, wherein: A key groove (201) is arranged on the outer periphery of the reversing rotating seat (20), and the reversing rotating seat (20) is connected with the reversing rotating sleeve in the machine head module through a flat key in the key groove (201).

4. The vibrating knife module of claim 1, wherein: Further comprising a vibration transmission mechanism (70) connected between the vibration driving source (40) and the cutter mandrel (30), the vibration driving source (40) being a motor, the vibration transmission mechanism (70) comprising an eccentric shaft (71) perpendicular to the cutter mandrel (30) and an oscillator (72) fixed on the upper end of the cutter mandrel (30), the eccentric shaft (71) comprising a first shaft segment (711) and a second shaft segment (712) arranged eccentrically, the first shaft segment (711) of the eccentric shaft (71) being fixedly connected with the motor shaft of the vibration driving source (40), the oscillator (72) being provided with a ring-shaped assembly groove (721) on its outer periphery, the second shaft segment (712) of the eccentric shaft (71) being rotatably assembled in the ring-shaped assembly groove (721) of the oscillator (72) through a first bearing (151), and the upper end of the outer connecting sleeve (51) extending to the lower end of the oscillator (72).

5. The vibrating knife module of claim 1, wherein: Further comprising a cutter fixing mechanism (80) connected between the cutter mandrel (30) and the cutter (60), a connecting sleeve (90) assembled on the outer periphery of the reversing rotating seat (20), and a cutter disc (110) assembled on the outer periphery of the lower end of the connecting sleeve (90), the part of the fixing mechanism and the cutter (60) located outside the reversing rotating seat (20) being accommodated in the connecting sleeve (90) and the cutter disc (110), the lower end of the cutter disc (110) being integrally provided with a bottom end plate (111), the bottom end plate (111) being provided with a cutter slot (112) extending through the upper and lower portions, and the cutter slot (112) allowing the cutter (60) to extend downward from the cutter disc (110) only.

6. The vibrating knife module of claim 5, wherein: Further comprising a positioning pin (121) and a fixing spring (122), the cutter disc (110) being provided with a first connecting groove (113) extending through the radial direction, the outer periphery of the connecting sleeve (90) being provided with a second connecting groove, and the fixing spring (122) being detachably clamped in the first connecting groove (113) and the second connecting groove, the positioning pin (121) being fixed in the cutter disc (110), the connecting sleeve (90) being provided with a positioning pin hole matched with the positioning pin (121), the connecting sleeve (90) being gap-fitted with the reversing rotating seat (20) and connected through a fixing screw (123), the connecting sleeve (90) being further provided with a connecting hole (91) accommodating the fixing screw (123), the connecting hole (91) being a waist-shaped hole extending upward and downward.

7. The vibrating knife module of claim 1, wherein: Further comprising a quick-change connecting block (130) fixed on the outer periphery of the base (10), the outer periphery of the quick-change connecting block (130) being fixedly provided with a plurality of connecting lugs (131) distributed in the circumferential direction, a wave bead screw (140) being installed in each connecting lug (131), and a steel bead (141) of the wave bead screw (140) protruding downward from the lower end surface of the connecting lug (131).

8. A cutting table, characterized by: The cutting bed is provided with the vibration cutter module according to any one of claims 1-7. The cutting bed is provided with the vibration cutter module according to any one of claims 1-7.

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