CN221066582U - Half-cutter module - Google Patents

Abstract

The utility model provides a half-cutter module which comprises a base, a cutter fixing main shaft assembled in the base and a cutter arranged at the lower end of the cutter fixing main shaft, wherein a cutter fixing hole is formed in the lower end of the cutter fixing main shaft, cutter fixing magnets and cutter fixing pin shafts which are fixed on the cutter fixing main shaft and distributed up and down are arranged in the cutter fixing hole, the cutter is inserted into the cutter fixing hole, the upper end of the cutter is in adsorption connection with the cutter fixing magnets, a cutter fixing inclined surface facing the cutter fixing pin shaft is arranged on the cutter, and the cutter fixing pin shaft is in butt fit with the cutter fixing inclined surface. According to the utility model, the fixed cutter magnet, the fixed cutter pin shaft and the fixed cutter inclined plane on the cutter are used for realizing the disassembly of the cutter at the lower end of the fixed cutter main shaft, the cutter is inserted into the fixed cutter hole upwards by applying force during the assembly, and the cutter is removed from the fixed cutter hole downwards by applying force during the disassembly, so that the operation is convenient, and the cutter is convenient to replace.

Description

Half-cutter module

Technical Field

The utility model relates to the technical field of cutting beds, in particular to a half-cutter module.

Background

The cutting bed is cutting equipment for automatically cutting pieces, and is widely applied to industries of textile clothing, automotive interiors, furniture, bags, outdoor products and the like. When the cut pieces are different, the cut-off modules assembled in the cutting bed are also different. At present, a half-cutter module is assembled in the cutting bed, and the half-cutter module is not provided with a power source, but the cutting bed provides power for X, Y, Z triaxial movement. Therefore, the half-cutter module mainly comprises a base, a fixed cutter main shaft assembled in the base, and a cutter fixed at the lower end of the fixed cutter main shaft. However, in the existing half-cutter module, the cutter fixing structure between the cutter and the cutter fixing main shaft is complex, and the operation is inconvenient when the cutter is replaced, and time and labor are wasted.

Disclosure of utility model

In view of the above-mentioned drawbacks of the prior art, the present utility model is to provide a half-cutter module capable of conveniently replacing a cutter.

In order to achieve the above purpose, the utility model provides a half-cutter module, which comprises a base, a cutter fixing main shaft assembled in the base, and a cutter arranged at the lower end of the cutter fixing main shaft, wherein the lower end of the cutter fixing main shaft is provided with a cutter fixing hole, cutter fixing magnets and cutter fixing pin shafts which are fixed on the cutter fixing main shaft and distributed up and down are arranged in the cutter fixing hole, the cutter is inserted in the cutter fixing hole, the upper end of the cutter is in adsorption connection with the cutter fixing magnets, the cutter is provided with a cutter fixing inclined plane facing the cutter fixing pin shaft, and the cutter fixing pin shaft is in butt fit with the cutter fixing inclined plane.

Further, the half-cutter module further comprises a main shaft sleeve and a first connecting sleeve, the base comprises a fixed shell and a rotating shell rotatably supported in the fixed shell, the main shaft sleeve is fixed on the periphery of the main shaft of the fixed cutter, the first connecting sleeve is fixed in the rotating shell, and the main shaft sleeve is arranged in the first connecting sleeve in a penetrating mode and in spline connection with the first connecting sleeve.

Further, the half-cutter module further comprises a connecting pin fixed on the fixed cutter main shaft, a connecting clamping groove is formed in the end portion of the main shaft sleeve, and the connecting pin is clamped in the connecting clamping groove.

Further, a flat key is fixed to the outer periphery of the rotary housing.

Further, the half-cutter module further comprises a quick-change connecting block fixed on the fixed shell, a plurality of connecting lugs distributed at intervals in the circumferential direction are fixedly arranged on the periphery of the quick-change connecting block, a bead screw is arranged in each connecting lug, and steel balls of the bead screw are downwards emitted from the lower end face of each connecting lug.

Further, the half-cutter module further comprises an up-and-down floating mechanism arranged on the base and a positioning cap distributed at the lower end of the base, the up-and-down floating mechanism is connected with the upper end of the fixed cutter main shaft, the fixed cutter main shaft is supported in the base in a vertically movable mode, the positioning cap is arranged at the lower end of the fixed cutter main shaft, a cutter groove allowing the cutter to extend downwards is formed in the lower end of the positioning cap, and the lower end face of the positioning cap is a positioning plane for attaching the cutting pieces.

Further, the upper and lower floating mechanism comprises an adjusting screw, a floating rod which can be supported in the adjusting screw in a vertically movable mode, a connecting rod and a pre-tightening spring, wherein the adjusting screw is screwed in the base, an inwardly protruding screw boss portion is arranged on the inner wall of the adjusting screw, an outwardly protruding rod boss portion is arranged on the outer peripheral surface of the floating rod, the pre-tightening spring is sleeved on the periphery of the floating rod, the upper end and the lower end of the pre-tightening spring are respectively abutted to the screw boss portion and the rod boss portion, and the connecting rod is connected between the lower end of the floating rod and the upper end of the cutter fixing main shaft.

Further, a connecting shaft section is arranged at the lower end of the floating rod, a connecting hole is arranged at the upper end of the connecting rod, the connecting shaft section is embedded in the connecting hole, and the lower end face of the rod boss part is in butt fit with the upper end face of the connecting rod; the lower end of the connecting rod is in threaded connection with the upper end of the fixed cutter main shaft.

Further, a limiting gasket is fixed at the upper end of the floating rod, the upper end face of the screw boss part forms a descending limiting surface, and the limiting gasket is distributed on the upper side of the descending limiting surface and can be abutted against the descending limiting surface; the lower extreme of adjusting screw has seted up the holding tank that can hold pole boss portion, the upper groove wall of holding tank constitutes the spacing face of going up, pole boss portion is at the downside of going up the spacing face, and can with the spacing face looks butt of going up.

Further, the half-cutter module further comprises a second connecting sleeve fixed on the periphery of the lower end of the fixed cutter main shaft, and the positioning cap is screwed on the periphery of the second connecting sleeve.

As described above, the half-cutter module according to the present utility model has the following advantageous effects:

In the application, after the cutter is inserted upwards into the cutter fixing hole of the cutter fixing main shaft, the cutter is adsorbed by the cutter fixing magnet, so that the gravity of the cutter is overcome; meanwhile, the cutter and the fixed cutter main shaft are relatively fixed by the abutting fit of the fixed cutter pin shaft and the fixed cutter inclined plane, so that the cutter can synchronously move along with the fixed cutter main shaft. According to the application, the fixed cutter magnet, the fixed cutter pin shaft and the fixed cutter inclined plane on the cutter are used for realizing the disassembly of the cutter at the lower end of the fixed cutter main shaft, the cutter is inserted into the fixed cutter hole upwards by applying force during the assembly, and the cutter is removed from the fixed cutter hole downwards by applying force during the disassembly, so that the operation is convenient, and the cutter is convenient to replace.

Drawings

Fig. 1 is a schematic structural view of a half-cutter module in the present utility model.

Fig. 2 is a half-sectional view of fig. 1.

Fig. 3 is a cross-sectional view taken along A-A of fig. 1.

Fig. 4 is a schematic structural view of a spindle sleeve according to the present utility model.

Fig. 5 is a schematic structural diagram of a quick-change connection block according to the present utility model.

Fig. 6 is a schematic structural view of a beaded screw according to the present utility model.

Fig. 7 is a schematic view of a head module for mounting the half-cutter module of the present utility model.

Fig. 8 is an enlarged view of circle B of fig. 7.

Description of element reference numerals

10. Base seat

101. Fixed shell

102. Rotary shell

20. Fixed cutter main shaft

21. Fixed cutter hole

22. Step part

30. Cutter knife

31. Fixed knife inclined plane

40. Fixed knife magnet

50. Fixed knife pin shaft

60. Spindle sleeve

61. Connection clamping groove

70. First connecting sleeve

80. Connecting pin

90. Up-down floating mechanism

91. Adjusting screw

911. Screw boss portion

912. Accommodating groove

92. Floating rod

921. Lever boss portion

922. Connecting shaft section

93. Connecting rod

931. Connecting hole

94. Pretension spring

95. Spacing gasket

96. Down limit surface

97. Uplink limiting surface

110. Quick-change connecting block

111. Connecting lug

120. Wave bead screw

121. Steel ball

130. Flat key

140. Positioning cap

141. Knife groove

142. Positioning plane

150. Second connecting sleeve

151. Hook part

160. Machine head module

161. Lifting driving source

162 Z-direction sliding block

163. Rotary driving source

170. Quick-change mounting seat

171. Limiting lug

172. Slot groove

180. Clamping gasket

181. Clamping concave part

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper", "lower", "left", "right", "middle", etc. are used herein for convenience of description, but are not to be construed as limiting the scope of the utility model, and the relative changes or modifications are not to be construed as essential to the scope of the utility model.

It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element through intervening elements.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

The utility model relates to the field of cutting beds, in particular to a half-cutter module for a cutting bed. The cutting bed is provided with a head module 160 as shown in fig. 7, and the half-cutter module according to the present utility model is mounted in the head module 160 shown in fig. 7.

As shown in fig. 1 to 3, the half-cutter module provided by the utility model comprises a base 10, a cutter fixing main shaft 20 assembled in the base 10 and extending vertically and axially, and a cutter 30 mounted at the lower end of the cutter fixing main shaft 20, wherein a cutter fixing hole 21 is formed at the lower end of the cutter fixing main shaft 20, the cutter fixing hole 21 penetrates through the cutter fixing main shaft 20 downwards, a cutter fixing magnet 40 and a cutter fixing pin shaft 50 which are fixed on the cutter fixing main shaft 20 and distributed vertically are arranged in the cutter fixing hole 21, the cutter 30 is inserted into the cutter fixing hole 21, the upper end of the cutter 30 is in adsorption connection with the cutter fixing magnet 40, a cutter fixing inclined surface 31 facing the cutter fixing pin shaft 50 is arranged on the cutter 30, the cutter fixing inclined surface 31 extends obliquely in a way of approaching the hole wall of the cutter fixing hole 21 downwards, and the cutter fixing pin shaft 50 is in butt fit with the cutter fixing inclined surface 31.

In the half-cutter module, after the cutter 30 is inserted upwards into the cutter fixing hole 21 of the cutter fixing main shaft 20, the cutter fixing magnet 40 is used for adsorbing the cutter, so that the gravity of the cutter 30 is overcome; meanwhile, the cutter 30 and the cutter fixing main shaft 20 are relatively fixed by the abutting fit of the cutter fixing pin shaft 50 and the cutter fixing inclined surface 31, so that the cutter 30 can synchronously move along with the cutter fixing main shaft 20. According to the application, the fixed cutter magnet 40, the fixed cutter pin shaft 50 and the fixed cutter inclined surface 31 on the cutter 30 are adopted, so that the cutter 30 can be dismounted at the lower end of the fixed cutter main shaft 20, the cutter 30 is inserted into the fixed cutter hole 21 upwards by applying force during mounting, the cutter 30 is removed from the fixed cutter hole 21 downwards by applying force during dismounting, and the operation is convenient, thereby facilitating the replacement of the cutter 30.

Further, the cutting bed has an X-axis truss mechanism having an X-direction slider movable forward and backward in the X-direction and a Y-axis truss mechanism fixed to the X-direction slider, the Y-axis truss mechanism having a Y-direction slider movable left and right in the Y-direction, and the head module 160 is fixed to the Y-direction slider. As shown in fig. 7, the head module 160 has a lift drive source 161, a Z-direction slider 162 driven to lift by the lift drive source 161, and a rotation drive mechanism mounted on the Z-direction slider 162, the rotation drive mechanism including a rotation drive source 163, and a rotation sleeve driven to rotate by the rotation drive source 163, the rotation sleeve being rotatably supported in the Z-direction slider 162. The half-cutter module according to the present application is mounted in the Z-direction slider 162 and the rotating sleeve, is driven to move back and forth and left and right by the X-axis truss mechanism and the Y-axis truss mechanism, and is driven to move up and down and rotate about the vertical axis by the head module 160. Based on this, as shown in fig. 1 to 3, the base 10 includes a fixed housing 101 and a rotating housing 102, an upper end of the rotating housing 102 extends into the fixed housing 101 and is rotatably supported in the fixed housing 101 by a bearing, the fixed housing 101 is for connection with a Z-direction slider 162 of the head module 160, and the rotating housing 102 is for connection with a rotating sleeve of the head module 160.

Further, as shown in fig. 1 to 3, the half-cutter module further includes a spindle sleeve 60 and a first connecting sleeve 70, the spindle sleeve 60 is fixed on the outer periphery of the fixed cutter spindle 20, the first connecting sleeve 70 is fixed in the rotary housing 102, and the spindle sleeve 60 is inserted into the first connecting sleeve 70 and is in spline connection with the first connecting sleeve. When the rotary driving source 163 of the head module 160 is operated, the rotary sleeve transmits torque to the rotary housing 102, and the rotary housing 102 transmits torque to the fixed cutter spindle 20 through the first coupling sleeve 70 and the spindle sleeve 60 to drive the fixed cutter spindle 20 and the cutter 30 to rotate, thereby changing the cutting direction of the cutter 30.

Preferably, as shown in fig. 1 to 3, a flat key 130 is fixed to the outer circumference of the rotary housing 102, and the rotary housing 102 is flat-keyed to the rotary sleeve of the head module 160 through the flat key 130 to transmit torque. The half-cutter module further comprises a connecting pin 80 fixed on the fixed cutter main shaft 20, and the connecting pin 80 extends along the radial direction of the fixed cutter main shaft 20; as shown in fig. 4, two radially penetrating connecting clamping grooves 61 are formed at the lower end of the spindle sleeve 60, the lower end of the connecting clamping groove 61 penetrates the first connecting sleeve 70 downwards, two ends of the connecting pin 80 are respectively clamped in the two connecting clamping grooves 61, and the reliability of torque transmission between the first connecting sleeve 70 and the fixed cutter spindle 20 is improved.

Further, in order to enable quick disassembly of the fixed housing 101 in the head module 160, as shown in fig. 1 to 3, the half-cutter module further includes a quick-change connection block 110, the quick-change connection block 110 is fixed at the lower end of the fixed housing 101 by a plurality of screws, and quick disassembly of the half-cutter module in the head module 160 is achieved by the quick-change connection block 110. Specifically, as shown in fig. 5 and 6, three connection lugs 111 are fixedly arranged at the periphery of the quick-change connection block 110 at intervals in the circumferential direction, two ball screws 120 are mounted in each connection lug 111, each ball screw 120 is provided with a steel ball 121 which can extend up and down, a spring which is abutted against the steel ball 121 is arranged in each ball screw 120, the steel ball 121 at the lower end of each ball screw 120 is enabled to be ejected downwards from the lower end face of the connection lug 111 by the spring, and the steel ball 121 can be retracted upwards into the ball screw 120. As shown in fig. 7 and 8, the head module 160 has a quick-change mounting seat 170 fixed at the upper end of the Z-direction sliding block 162, three circumferentially spaced spacing lugs 171 are disposed at the upper end of the quick-change mounting seat 170, and three slots 172 formed between two adjacent spacing lugs 171, the head module 160 is provided with a clamping washer 180 fixed to the quick-change mounting seat 170 at the lower end of the quick-change mounting seat 170, and a pre-tightening O-ring abutting against the lower end of the clamping washer 180, and a plurality of concave clamping concave portions 181 are disposed on the upper end surface of the clamping washer 180. When the half-cutter module is installed in the head module 160, the half-cutter module is inserted into the quick-change mounting seat 170 from top to bottom, and the connecting lugs 111 of the half-cutter module are aligned with the slots 172 of the head module 160; after the half cutter module is inserted downwards, the half cutter module is rotated by an angle until steel balls 121 at the lower ends of a plurality of wave bead screws 120 of the half cutter module are just clamped into clamping concave parts 181 of the head module 160, at the moment, limiting lugs 171 of the head module 160 are just abutted against the upper sides of connecting lugs 111 of the half cutter module, clamping gaskets 180 of the head module 160 are abutted against the lower sides of the connecting lugs 111 of the half cutter module, and an elastic pre-tightening O-shaped ring provides a pre-tightening force, so that axial gaps are eliminated, axial limiting of the quick-change connecting block 110 in the head module 160 is realized, and axial movement of the half cutter module relative to a quick-change mounting seat 170 of the head module 160 is prevented. In this way, a quick locking of the half-knife module in the head module 160 is achieved.

Further, as shown in fig. 1 to 3, the half-cutter module further includes an up-down floating mechanism 90 mounted on the rotary housing 102, and a positioning cap 140 distributed on the lower end of the rotary housing 102, the up-down floating mechanism 90 is connected to the upper end of the cutter fixing spindle 20, the cutter fixing spindle 20 is supported in the rotary housing 102 to be capable of moving up and down, the positioning cap 140 is mounted on the lower end of the cutter fixing spindle 20, a cutter slot 141 allowing the cutter 30 to extend downward is formed on the lower end of the positioning cap 140, and a positioning plane 142 for attaching the cut pieces is formed on the lower end surface of the positioning cap 140. In the cutting process, the fixed cutter main shaft 20 can move up and down in the rotary shell 102, and when the thickness of the cut pieces changes, the positioning cap 140 can fluctuate along with the change of the thickness of the cut pieces, so that the fixed cutter main shaft is suitable for the cut pieces with different thicknesses; simultaneously, the up-down floating mechanism 90 applies downward pretightening force to the fixed cutter main shaft 20, so that the exposed length of the cutter 30 from the positioning cap 140 is determined, and the cutter 30 has consistent cutting depth when cutting the cut pieces with different thicknesses under the action of the positioning plane 142.

Preferably, as shown in fig. 2 and 3, the half-cutter module further includes a second connecting sleeve 150 fixed to the outer circumference of the lower end of the fixed cutter main shaft 20, and the positioning cap 140 is screw-coupled to the outer circumference of the second connecting sleeve 150; turning the positioning cap 140 adjusts the up and down position of the positioning cap 140, thereby adjusting the length of the downward extension of the cutter 30 from the positioning cap 140, and thus the cutting depth. In addition, the upper portion of the second connecting sleeve 150 extends upward to the outer circumference of the lower portion of the spindle sleeve 60, increasing the connection reliability between the spindle sleeve 60 and the fixed cutter spindle 20. The lower end of the second connecting sleeve 150 is also provided with a hook 151, the periphery of the fixed cutter main shaft 20 is provided with a step part 22, and the hook 151 is abutted against the lower end of the step part 22 to prevent the fixed cutter main shaft 20 from loosening.

Further, the structure of the up-down floating mechanism 90 is preferably: as shown in fig. 2 and 3, the up-and-down floating mechanism 90 includes an adjusting screw 91, a floating rod 92 supported in the adjusting screw 91 so as to be movable up and down, a connecting rod 93, and a pre-tightening spring 94 extending up and down; the adjusting screw 91 is screwed in the rotary shell 102, and a screw boss part 911 protruding inwards is arranged on the inner wall of the adjusting screw 91; the outer peripheral surface of the floating rod 92 is provided with rod boss portions 921 protruding outward, and the rod boss portions 921 are distributed on the lower side of the screw boss portions 911; the pre-tightening spring 94 is sleeved on the periphery of the floating rod 92, and the upper end and the lower end of the pre-tightening spring 94 are respectively abutted against the screw boss portion 911 and the rod boss portion 921, namely, the pre-tightening spring 94 is distributed between the screw boss portion 911 and the rod boss portion 921; the connecting rod 93 is connected between the lower end of the floating rod 92 and the upper end of the stationary cutter main shaft 20. The preload spring 94 is in a compressed state, and the preload spring 94 applies a downward force to the lever boss 921, which is transmitted to the cutter 30 through the connecting rod 93 and the fixed cutter spindle 20. When the adjusting screw 91 is rotated, the adjusting screw 91 moves up or down, and the up-down position of the boss portion 911 of the adjusting screw is adjusted, so that the compression degree of the pre-tightening spring 94 is adjusted, and the pre-tightening force is adjusted.

Preferably, as shown in fig. 2 and 3, the lower end of the floating rod 92 is provided with a connecting shaft section 922, the upper end of the connecting rod 93 is provided with a connecting hole 931, the connecting shaft section 922 is embedded in the connecting hole 931, and the lower end face of the rod boss 921 is in abutting engagement with the upper end face of the connecting rod 93, thereby connecting the floating rod 92 with the connecting rod 93. The lower end of the connecting rod 93 is screw-coupled with the upper end of the stationary cutter arbor 20, thereby connecting the connecting rod 93 with the stationary cutter arbor 20.

Further, as shown in fig. 2 and 3, a limiting gasket 95 is fixed to the upper end of the floating rod 92 by a screw, the upper end surface of the screw boss portion 911 forms a downward limiting surface 96, and the limiting gasket 95 is distributed on the upper side of the downward limiting surface 96 and can abut against the downward limiting surface 96 to limit the downward limit of the floating rod 92, that is, limit the downward limit of the positioning cap 140. The lower end of the adjusting screw 91 is provided with a containing groove 912 capable of containing the rod boss 921, the upper groove wall of the containing groove 912 forms an upward limit surface 97, the rod boss 921 can abut against the upward limit surface 97 under the upward limit surface 97 to limit the upward limit of the floating rod 92, and the upward limit of the positioning cap 140 is limited.

In summary, the present utility model effectively overcomes the disadvantages of the prior art and has high industrial utility value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. The utility model provides a half sword module, includes base (10), assembles solid sword main shaft (20) in base (10), and install cutter (30) of solid sword main shaft (20) lower extreme, its characterized in that: the utility model discloses a solid sword main shaft, including solid sword main shaft (20), fixed sword hole (21) have been seted up to the lower extreme of solid sword main shaft (20), be equipped with all in solid sword hole (21) and be fixed in solid sword magnet (40) and solid sword round pin axle (50) of solid sword main shaft (20) and upper and lower distribution, cutter (30) are inserted and are established in solid sword hole (21), the upper end and the solid sword magnet (40) of cutter (30) adsorb and are connected, be equipped with on cutter (30) and face solid sword inclined plane (31) of solid sword round pin axle (50), solid sword round pin axle (50) and solid sword inclined plane (31) butt cooperation.

2. The half knife module of claim 1, wherein: the novel tool comprises a base (10), and is characterized by further comprising a main shaft sleeve (60) and a first connecting sleeve (70), wherein the base (10) comprises a fixed shell (101) and a rotating shell (102) rotatably supported in the fixed shell (101), the main shaft sleeve (60) is fixed on the periphery of a main shaft (20) of a fixed tool, the first connecting sleeve (70) is fixed in the rotating shell (102), and the main shaft sleeve (60) is arranged in the first connecting sleeve (70) in a penetrating mode and is in spline connection with the first connecting sleeve and the second connecting sleeve.

3. The half knife module of claim 2, wherein: the tool fixing device is characterized by further comprising a connecting pin (80) fixed on the tool fixing main shaft (20), wherein a connecting clamping groove (61) is formed in the end part of the main shaft sleeve (60), and the connecting pin (80) is clamped in the connecting clamping groove (61).

4. The half knife module of claim 2, wherein: a flat key (130) is fixed on the periphery of the rotary shell (102).

5. The half knife module of claim 2, wherein: the quick-change connecting block (110) is fixed to the fixed shell (101), a plurality of connecting lugs (111) distributed at intervals in the circumferential direction are fixedly arranged on the periphery of the quick-change connecting block (110), a wave bead screw (120) is arranged in each connecting lug (111), and steel balls (121) of the wave bead screw (120) are downwards emitted from the lower end face of the connecting lug (111).

6. The half knife module of claim 1, wherein: still including install in upper and lower floating mechanism (90) of base (10) and distribution are in locating cap (140) of base (10) lower extreme, upper and lower floating mechanism (90) link to each other with the upper end of solid sword main shaft (20), but solid sword main shaft (20) support in base (10) with reciprocating, locating cap (140) are installed in the lower extreme of solid sword main shaft (20), the lower extreme of locating cap (140) has seted up and has been allowed sword groove (141) that cutter (30) downwardly stretched out, the lower terminal surface of locating cap (140) is locating plane (142) for laminating cut-parts.

7. The half knife module of claim 6, wherein: the vertical floating mechanism (90) comprises an adjusting screw (91), a floating rod (92) which can be vertically movably supported in the adjusting screw (91), a connecting rod (93) and a pre-tightening spring (94), wherein the adjusting screw (91) is screwed in a base (10), an inwardly protruding screw boss part (911) is arranged on the inner wall of the adjusting screw (91), an outwardly protruding rod boss part (921) is arranged on the outer peripheral surface of the floating rod (92), the pre-tightening spring (94) is sleeved on the periphery of the floating rod (92), the upper end and the lower end of the pre-tightening spring (94) are respectively abutted to the screw boss part (911) and the rod boss part (921), and the connecting rod (93) is connected between the lower end of the floating rod (92) and the upper end of a cutter fixing main shaft (20).

8. The half knife module of claim 7, wherein: the lower end of the floating rod (92) is provided with a connecting shaft section (922), the upper end of the connecting rod (93) is provided with a connecting hole (931), the connecting shaft section (922) is embedded in the connecting hole (931), and the lower end face of the rod boss part (921) is in butt fit with the upper end face of the connecting rod (93); the lower end of the connecting rod (93) is in threaded connection with the upper end of the fixed cutter main shaft (20).

9. The half knife module of claim 7, wherein: a limiting gasket (95) is fixed at the upper end of the floating rod (92), the upper end surface of the screw boss part (911) forms a descending limiting surface (96), and the limiting gasket (95) is distributed on the upper side of the descending limiting surface (96) and can be abutted against the descending limiting surface (96); the lower end of the adjusting screw (91) is provided with a containing groove (912) capable of containing the boss part (921) of the rod, an upper groove wall of the containing groove (912) forms an upper limit surface (97), and the boss part (921) of the rod is arranged at the lower side of the upper limit surface (97) and can be abutted against the upper limit surface (97).

10. The half knife module of claim 6, wherein: the tool fixing device further comprises a second connecting sleeve (150) fixed on the periphery of the lower end of the tool fixing main shaft (20), and the positioning cap (140) is screwed on the periphery of the second connecting sleeve (150).