CN217223888U

CN217223888U - Grooving machine capable of preventing sawdust from splashing

Info

Publication number: CN217223888U
Application number: CN202123202704.1U
Authority: CN
Inventors: 陈海龙
Original assignee: Baoding Taihang Plastic Steel Doors & Windows Co Ltd
Current assignee: Baoding Taihang Plastic Steel Doors & Windows Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-08-19
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a slotting machine for preventing sawdust from splashing, which comprises a section bar, a splashing prevention device and a power cutting device, wherein the splashing prevention device comprises a support frame, a fixed platform, a slag storage box and a material pressing device; the top surface of the support frame is fixedly provided with a power cutting device; a fixing table is arranged on one side surface of the supporting frame; the bottom surface of the supporting frame is fixedly connected with a slag storage box; the material pressing device comprises a hydraulic mechanism, a plurality of bending and blocking mechanisms, a plurality of connecting rods and a push plate assembly; the bottom surface of the hydraulic mechanism is attached to the top surface of the fixed table; one side surface of the top of the hydraulic mechanism is fixedly connected with the power cutting device, and one side surface of the bottom of the hydraulic mechanism is hinged with a plurality of hinges; the hinge is hinged with a bending and blocking mechanism; the bending and blocking mechanism is hinged with a connecting rod; one end of the connecting rod is hinged with a push plate component; the section bar is arranged between the hydraulic mechanism and the fixed platform; the connecting rod and the push plate component are arranged in the hydraulic mechanism; the utility model discloses can make the sweeps that splashe can draw in, be convenient for concentrate the utilization, reduce the potential safety hazard.

Description

Grooving machine capable of preventing sawdust from splashing

Technical Field

The utility model relates to a machining technical field especially relates to a prevent groover that sawdust splashes.

Background

The bridge-cut-off aluminum door and window adopts heat-insulating bridge-cut-off aluminum profiles and hollow glass, and has the functions of energy conservation, sound insulation, noise prevention, dust prevention, water prevention and the like. The heat conduction coefficient K value of the broken bridge aluminum door and window is less than 3W/square meter K, the heat loss is reduced by half compared with the common door and window, the heating cost is reduced by about 30 percent, the sound insulation quantity reaches more than 29 decibels, and the water tightness and the air tightness both reach the national A1 window standard.

In the process of processing the bridge-cut-off aluminum door and window, the existing bridge-cut-off aluminum section bar needs to be cut off, and the end surface of the cut-off section bar is grooved so as to be convenient for later assembly. However, in the process of grooving a sectional material by using a conventional grooving machine, cutting scraps always splash along an open gap, a cavity of the sectional material and an adjacent gap, which is not beneficial to environmental cleaning and has a great potential safety hazard for operators, and therefore, a grooving machine for preventing the scraps from splashing is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent groover that sawdust splashes to solve the problem that above-mentioned prior art exists, make the sweeps that splashes can draw in, be convenient for concentrate and utilize, reduce the potential safety hazard.

In order to achieve the above object, the utility model provides a following scheme:

a grooving machine capable of preventing sawdust from splashing comprises a section bar, a splashing prevention device and a power cutting device fixedly arranged on the splashing prevention device, wherein the splashing prevention device comprises a support frame, a fixing table, a slag storage box and a material pressing device; the power cutting device is fixedly arranged on the top surface of the support frame; a fixed table is arranged on one side surface of the support frame; the bottom surface of the support frame is fixedly connected with the slag storage box;

the material pressing device comprises a hydraulic mechanism, a plurality of bending and blocking mechanisms, a plurality of connecting rods and a push plate assembly; the bottom surface of the hydraulic mechanism is attached to the top surface of the fixed table; one side surface of the top of the hydraulic mechanism is fixedly connected with the power cutting device, and a plurality of hinges are fixedly connected to one side surface of the bottom of the hydraulic mechanism at equal intervals; the hinge is hinged with the bending and blocking mechanism; the bending and blocking mechanism is hinged with the connecting rod; one end of the connecting rod is hinged with a push plate component; the section bar is arranged between the hydraulic mechanism and the fixed table; the connecting rod and the push plate assembly are arranged in the hydraulic mechanism;

one opposite side surface of the hydraulic mechanism is fixedly connected with a baffle; the other side surface is fixedly connected with a sliding plate component; the bending and blocking mechanism and the sliding plate assembly are respectively arranged on the other opposite side face of the hydraulic mechanism.

Preferably, the bending and blocking mechanism comprises a bent pipe; one end of the bent pipe is fixedly connected with the hinge, and the other end of the bent pipe is bent to point and is attached with a sealing plug; a connecting rod is fixedly connected between the adjacent bent pipes; the plug is arranged in the section bar; the blocking and attracting are provided with a strong magnetic buckle; the strong magnetic buckle is arranged in an inner cavity at one end of the bent pipe close to the plug; one end face of the strong magnetic buckle is fixedly connected with a cable; one end of the cable penetrates through the partition plate and penetrates out of the inner cavity of the bent pipe; the cable is fixedly connected with the push plate assembly; a first spring is fixedly connected between the strong magnetic button and the partition plate; the top of the outer side face of one end of the bent pipe is fixedly connected with a hinge block; the hinged block is hinged with the connecting rod.

Preferably, the push plate assembly comprises a moving plate; the moving plate is hinged with one end of the connecting rod and one end of the cable respectively; the movable plate is fixedly connected with a fixed plate through a second spring; the bottom surface of the fixed plate is fixedly connected with the hydraulic mechanism, and the connecting rod and the moving plate are respectively arranged in the hydraulic mechanism.

Preferably, the hydraulic mechanism comprises a top plate and a pressure plate; one side surface of the top plate is fixedly connected with the side surface of the power cutting device; a plurality of guide assemblies are connected between the top plate and the pressing plate in a sliding manner; a hydraulic cylinder is fixedly connected to the middle of the top surface of the top plate; a transmission shaft of the hydraulic cylinder penetrates through the top surface of the top plate and is fixedly connected with the top surface of the pressing plate; the top surface of the pressure plate is fixedly connected with the fixed plate; a silica gel pad is fixedly connected to the bottom surface of the pressing plate; the silica gel pad is matched with the section bar; the baffle is fixedly connected between the top plate and the pressing plate.

Preferably, the slide plate assembly comprises two slide groove blocks; a scrap baffle is connected between the two sliding groove blocks in a sliding manner; the scrap blocking plate is in sliding contact with one side face of the baffle plate respectively; the two sliding groove blocks are symmetrically and fixedly arranged at two ends of one side surface of the top plate, which is far away from the power cutting device.

Preferably, a sealing plate is hinged to one side surface of the support frame, which is far away from the fixed table; the shrouding with the support frame is detachable connects.

Preferably, the plug comprises a magnetic core and a heat insulation cotton layer fixedly connected to the side surface of the magnetic core; one end face of the magnetic core is attracted with the strong magnetic buckle.

Preferably, the number of the connecting rods is not more than the number of the bending and blocking mechanisms.

The utility model discloses a following technological effect:

the utility model discloses a set up push pedal subassembly and curved stifled mechanism, can realize carrying out the shutoff to the section bar die cavity after section bar material loading is accomplished, avoid the die cavity departure of sweeps from the section bar.

The utility model discloses utilize baffle, slide subassembly and support frame to accomplish and enclose the fender to the three-dimensional of sweeps, realized in the confined region with the sweeps restriction, concentrate the collection and handle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic side view of the present invention.

Fig. 2 is a side view schematic diagram of the swage.

Fig. 3 is a schematic top view of the pressing device.

FIG. 4 is a schematic sectional view of A-A in FIG. 3.

Fig. 5 is an enlarged schematic view of B in fig. 4.

Wherein, 1, a section bar; 2. a power cutting device; 3. a support frame; 4. a fixed table; 5. a slag storage tank; 6. a material pressing device; 7. a hydraulic mechanism; 71. a top plate; 72. pressing a plate; 73. a guide assembly; 74. a hydraulic cylinder; 8. a bending and blocking mechanism; 81. bending the pipe; 82. plugging; 83. a strong magnetic buckle; 84. a cable; 85. a partition plate; 86. a first spring; 87. a hinged block; 9. a push plate assembly; 91. moving the plate; 92. a second spring; 93. a fixing plate; 10. a sled assembly; 101. a chute block; 102. a chip blocking plate; 1a, closing a plate; 1b, a baffle plate; 1c, a hinge; 1d, a silica gel pad; 1e, a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

A grooving machine for preventing sawdust from splashing comprises a section bar 1, a splashing prevention device and a power cutting device 2 fixedly arranged on the splashing prevention device, wherein the splashing prevention device comprises a support frame 3, a fixed table 4, a slag storage box 5 and a material pressing device 6; the top surface of the supporting frame 3 is fixedly provided with a power cutting device 2; a fixed table 4 is arranged on one side surface of the support frame 3; the bottom surface of the supporting frame 3 is fixedly connected with a slag storage box 5;

the material pressing device 6 comprises a hydraulic mechanism 7, a plurality of bending and blocking mechanisms 8, a plurality of connecting rods 1e and a push plate assembly 9; the bottom surface of the hydraulic mechanism 7 is attached to the top surface of the fixed table 4; one side surface of the top of the hydraulic mechanism 7 is fixedly connected with the power cutting device 2, and a plurality of hinges 1c are fixedly connected to one side surface of the bottom of the hydraulic mechanism 7 at equal intervals; the power cutting device 2 and the hinge 1c are arranged on the same side face of the hydraulic mechanism 7, and the hinge 1c is hinged with a bending and blocking mechanism 8; the bending and blocking mechanism 8 is hinged with a connecting rod 1 e; one end of the connecting rod 1e is hinged with a push plate component 9; the section bar 1 is arranged between the hydraulic mechanism 7 and the fixed platform 4; the connecting rod 1e and the push plate assembly 9 are arranged in the hydraulic mechanism 7;

furthermore, the length of the section bar 1 can be designed into any length according to actual design requirements, and the processing of the section bar of modern doors and windows can be met.

Further, the hinge 1c can realize 90-degree directional turning, can upwards turn the bent blocking mechanism 8 by 90 degrees, and can avoid a processing cutter of the power cutting device 2.

Furthermore, the end to be processed of the profile 1 is arranged towards the tool bit of the power cutting device 2, and the support frames 3 are arranged on two sides of the tool bit of the power cutting device 2 and play a role in supporting the power cutting device 2.

Further, the power cutting device 2 is a conventional power assembly for three-axis milling, which is a conventional technology and is not described herein again.

One opposite side surface of the hydraulic mechanism 7 is fixedly connected with a baffle plate 1 b; one side surface of the hydraulic mechanism 7 far away from the power cutting device 2 is fixedly connected with a sliding plate component 10; the bending and blocking mechanism 8 and the sliding plate assembly 10 are respectively arranged on the other opposite side surfaces of the hydraulic mechanism 7.

Furthermore, two baffles 1b are respectively and fixedly arranged on two side surfaces of the hydraulic mechanism, and the two side surfaces are opposite side surfaces, so that shielding is provided for chips to splash to two sides of the fixed table 4.

In a further optimized scheme, the bending and blocking mechanism 8 comprises a bent pipe 81; one end of the bent pipe 81 is fixedly connected with the hinge 1c, and the other end is bent to point and is attached with a plug 82; a connecting rod is fixedly connected between the adjacent bent pipes 81; the plug 82 is arranged in the section bar 1; the plug 82 is attracted with a strong magnetic buckle 83; the strong magnetic button 83 is arranged in the inner cavity of one end of the elbow 81 close to the plug 82; one end face of the strong magnetic buckle 83 is fixedly connected with a cable 84; one end of the cable 84 is inserted through the partition 85 and extends out of the inner cavity of the elbow 81 (the part of the cable 84 extending out of the inner cavity of the elbow 81 is not shown in the figure); one end of the cable 84 is fixedly connected with the push plate assembly 9; a first spring 86 is fixedly connected between the strong magnetic buckle 83 and the partition plate 85; the top of the outer side surface of one end of the elbow 81 close to the hinge 1c is fixedly connected with a hinge block 87; the hinge block 87 is hinged to the link 1 e.

Furthermore, the fixed position of the hinge block 87 and the elbow 81 is far away from the fixed position of the elbow 81 and the hinge 1c, so that the fixed position of the elbow 81 and the hinge 1c is taken as the axis, and the hinge block 87 can pull up the elbow 81 under the action of the connecting rod 1 e.

Further, the strong magnetic button 83 and the plug 82 are arranged to be attracted, so that the elbow 81 and the plug 82 can be detachably connected, and interference in later processing is avoided.

In a further optimized scheme, the push plate assembly 9 comprises a moving plate 91; the moving plate 91 is respectively hinged with one end of the connecting rod 1e and one end of the cable 84; the moving plate 91 is fixedly connected with a fixed plate 93 through a second spring 92; the bottom surface of the fixed plate 93 is fixedly connected with the hydraulic mechanism 7, and the connecting rod 1e and the moving plate 91 are respectively arranged in the hydraulic mechanism 7.

Further, the fixed plate 93 and the moving plate 91 are parallel to each other, and the fixed plate 93 is disposed near a side surface of the pressing plate 72, so that the moving plate 91 is fixedly connected to the connecting rod 1e and the cable 84.

In a further optimized scheme, the hydraulic mechanism 7 comprises a top plate 71 and a pressure plate 72; one side surface of the top plate 71 is fixedly connected with the side surface of the power cutting device 2; a plurality of guide assemblies 73 are connected between the top plate 71 and the pressure plate 72 in a sliding manner; a hydraulic cylinder 74 is fixedly connected to the middle part of the top surface of the top plate 71; a transmission shaft of the hydraulic cylinder 74 penetrates through the top surface of the top plate 71 and is fixedly connected with the top surface of the pressure plate 72; a fixed plate 93 is fixedly connected to the top surface of the pressure plate 72; the bottom surface of the pressing plate 72 is fixedly connected with a silica gel pad 1 d; the silica gel pad 1d is matched with the section bar 1; a baffle plate 1b is fixed between the top plate 71 and the pressing plate 72.

Further, when the silica gel pad 1d is inconsistent with the plurality of sectional materials 1, the gaps between the two adjacent sectional materials 1 can be filled because the silica gel pad 1d is made of soft elastic materials, and chips are prevented from flying out of the gaps.

Further, the guide assembly 73 is a guide sleeve and guide pillar assembly, the guide sleeve is embedded in four corners of the top plate 71, one end of the guide pillar is matched with the guide sleeve, the other end of the guide pillar is fixedly connected with four corners of the pressing plate 72, and the guide sleeve and guide pillar is a conventional guide assembly, which is not described herein again; the pressing plate 72 is vertically arranged corresponding to the top plate 71, and the guide assembly 73 provides direction guide for the upward and downward movement of the pressing plate 72.

In a further optimized solution, the sliding plate assembly 10 includes two sliding groove blocks 101; a scrap baffle plate 102 is connected between the two sliding groove blocks 101 in a sliding manner; the chip blocking plates 102 are respectively in sliding contact with one side surface of the baffle plate 1 b; the two sliding groove blocks 101 are symmetrically and fixedly installed at two ends of one side face, far away from the power cutting device 2, of the top plate 71, so that the chip blocking plate 102 can slide in sliding grooves formed in the opposite side faces of the two sliding groove blocks 101 respectively, the chip blocking plate 102 further blocks waste chips cut by the power cutting device 2, and an operator is prevented from being injured.

In a further optimized scheme, a sealing plate 1a is hinged to one side surface of the support frame 3, which is far away from the fixed table 4; shrouding 1a can be dismantled with support frame 3 and be connected, and shrouding 1a can realize cutting power cutting device 2 and get off stopping of the sweeps that splashes to the direction of keeping away from section bar 1 to shrouding 1a can be dismantled with support frame 3 and be connected, has also been convenient for the clearance of later stage to the sweeps of collecting.

In a further optimized scheme, the plug 82 comprises a magnetic core and a heat insulation cotton layer fixedly connected to the side surface of the magnetic core; one end face of the magnetic core is attracted with the strong magnetic buckle 83, and the outer side face of the magnetic core is fixedly connected with the heat insulation cotton layer, so that the bent pipe 81 can plug the plug 82 into the inner cavity of the section bar 1, and the flying of cut scraps from the cavity in the section bar 1 is avoided.

Further optimize the scheme, the quantity of connecting rod 1e is not more than the curved quantity of stifled mechanism 8, reduces connecting rod 1 e's quantity, can optimize the utility model discloses a structure reduces manufacturing cost.

The working process of the embodiment is as follows:

before the section bar 1 is processed, the hydraulic cylinder 74 lifts the pressing plate 72 to an upper dead point, the moving plate 91 is arranged close to the fixed plate 93, and at the moment, the extension force of the second spring 92 is smaller than the overturning force of the hinge 1c, so that the bending and blocking mechanism 8 cannot be overturned downwards;

placing a plurality of sectional materials 1 on the top surface of a fixed table 4 side by side, starting a hydraulic cylinder 74, driving a silica gel pad 1d to be abutted against the plurality of sectional materials 1 by a pressing plate 72, sealing a gap between the adjacent sectional materials 1, pushing a movable plate 91 to move towards a bending and blocking mechanism 8 manually at the moment, bending a hinge 1c under stress, carrying a plug 82 to move towards a cavity of the sectional material 1, and finally sealing the cavity of the sectional material 1 by the plug 82 under the action of the movable plate 91.

The moving plate 91 is pulled again to turn up the elbow 81, because one end of the cable is fixedly connected with the moving plate 91, one end of the cable is pulled by stretching, force is immediately transmitted to the strong magnetic buckle 83, the strong magnetic buckle 83 is separated from the plug 82 under the action of the pulling force, and the elbow 81 is turned up by 90 degrees under the action of the connecting rod 1 e.

At this time, the top plate 71, the power cutting device 2, the baffle plate 1b, the support frame 3, the sealing plate 1a and the chip blocking plate 102 respectively enclose and block one end of the profile 1 to be processed into a closed space, so that the splashing of cutting chips is completely blocked.

After the processing is finished, the sweeps can be concentrated and fall into the slag storage box 5, after the sweeps in the slag storage box 5 are fully stored, the sealing plate 1a is opened, and the sweeps are concentrated and taken out for recycling.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A grooving machine capable of preventing sawdust from splashing comprises a section bar (1), a splashing prevention device and a power cutting device (2) fixedly installed on the splashing prevention device, and is characterized in that the splashing prevention device comprises a support frame (3), a fixing table (4), a slag storage box (5) and a material pressing device (6); the power cutting device (2) is fixedly arranged on the top surface of the support frame (3); a fixed table (4) is arranged on one side surface of the support frame (3); the bottom surface of the support frame (3) is fixedly connected with the slag storage box (5);

the material pressing device (6) comprises a hydraulic mechanism (7), a plurality of bending and blocking mechanisms (8), a plurality of connecting rods (1e) and a push plate assembly (9); the bottom surface of the hydraulic mechanism (7) is attached to the top surface of the fixed table (4); one side surface of the top of the hydraulic mechanism (7) is fixedly connected with the power cutting device (2), and a plurality of hinges (1c) are fixedly connected to one side surface of the bottom of the hydraulic mechanism (7) at equal intervals; the hinge (1c) is hinged with the bent blocking mechanism (8); the bending and blocking mechanism (8) is hinged with the connecting rod (1 e); one end of the connecting rod (1e) is hinged with a push plate component (9); the section bar (1) is arranged between the hydraulic mechanism (7) and the fixed platform (4); the connecting rod (1e) and the push plate assembly (9) are arranged in the hydraulic mechanism (7);

a baffle (1b) is fixedly connected to one opposite side surface of the hydraulic mechanism (7); the other side surface is fixedly connected with a sliding plate component (10); the bending and blocking mechanism (8) and the sliding plate assembly (10) are respectively arranged on the other opposite side surface of the hydraulic mechanism (7).

2. A slotter preventing scattering of sawdust according to claim 1, wherein: the bending and blocking mechanism (8) comprises a bent pipe (81); one end of the bent pipe (81) is fixedly connected with the hinge (1c), and the other end of the bent pipe is bent to point and is attached with a plug (82); a connecting rod is fixedly connected between the adjacent bent pipes (81); the plug (82) is arranged in the section bar (1); the seal plug (82) is sucked with a strong magnetic buckle (83); the strong magnetic button (83) is arranged in an inner cavity at one end of the bent pipe (81) close to the plug (82); a cable (84) is fixedly connected to one end face of the strong magnetic buckle (83); one end of the cable (84) penetrates through the partition plate (85) and penetrates out of the inner cavity of the bent pipe (81); the cable (84) is fixedly connected with the push plate assembly (9); a first spring (86) is fixedly connected between the strong magnetic buckle (83) and the partition plate (85); the top of the outer side face of one end of the bent pipe (81) is fixedly connected with a hinge block (87); the hinge block (87) is hinged with the connecting rod (1 e).

3. The groover for preventing sawdust from splashing as set forth in claim 2, wherein: the push plate assembly (9) comprises a moving plate (91); the moving plate (91) is hinged with one end of the connecting rod (1e) and one end of the cable (84) respectively; the moving plate (91) is fixedly connected with a fixed plate (93) through a second spring (92); the bottom surface of the fixed plate (93) is fixedly connected with the hydraulic mechanism (7), and the connecting rod (1e) and the moving plate (91) are respectively arranged in the hydraulic mechanism (7).

4. A slotter preventing scattering of sawdust according to claim 3, wherein: the hydraulic mechanism (7) comprises a top plate (71) and a pressure plate (72); one side surface of the top plate (71) is fixedly connected with the side surface of the power cutting device (2); a plurality of guide assemblies (73) are connected between the top plate (71) and the pressing plate (72) in a sliding manner; a hydraulic cylinder (74) is fixedly connected to the middle of the top surface of the top plate (71); a transmission shaft of the hydraulic cylinder (74) penetrates through the top surface of the top plate (71) and is fixedly connected with the top surface of the pressure plate (72); the top surface of the pressure plate (72) is fixedly connected with the fixing plate (93); a silica gel pad (1d) is fixedly connected to the bottom surface of the pressing plate (72); the silica gel pad (1d) is matched with the section bar (1); the baffle (1b) is fixedly connected between the top plate (71) and the pressing plate (72).

5. The grooving machine for preventing sawdust from splashing as set forth in claim 4, wherein: the slide plate assembly (10) comprises two slide groove blocks (101); a scrap baffle plate (102) is connected between the two sliding groove blocks (101) in a sliding manner; the chip blocking plates (102) are in sliding contact with one side face of the baffle (1b) respectively; the two sliding groove blocks (101) are symmetrically and fixedly arranged at two ends of one side face, far away from the power cutting device (2), of the top plate (71).

6. A slotter preventing scattering of sawdust according to claim 1, wherein: a sealing plate (1a) is hinged to one side surface of the support frame (3) far away from the fixed table (4); the closing plate (1a) is detachably connected with the support frame (3).

7. A slotter preventing scattering of sawdust according to claim 2, wherein: the plug (82) comprises a magnetic core and a heat insulation cotton layer fixedly connected to the side surface of the magnetic core; one end face of the magnetic core is attracted with the strong magnetic button (83).

8. A slotter preventing scattering of sawdust according to claim 1, wherein: the number of the connecting rods (1e) is not more than that of the bending and blocking mechanisms (8).