CN216681400U - Guard shield limit structure on cutting machine - Google Patents
Guard shield limit structure on cutting machine Download PDFInfo
- Publication number
- CN216681400U CN216681400U CN202122699457.4U CN202122699457U CN216681400U CN 216681400 U CN216681400 U CN 216681400U CN 202122699457 U CN202122699457 U CN 202122699457U CN 216681400 U CN216681400 U CN 216681400U
- Authority
- CN
- China
- Prior art keywords
- saw blade
- protective cover
- shield
- connecting rod
- cover assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sawing (AREA)
Abstract
The utility model discloses a shield limiting structure on a cutting machine, which comprises: the saw blade cover assembly is rotatably arranged on the cutting machine main body; the saw blade is rotatably arranged in the saw blade cover assembly and is driven to rotate by the motor; the protective cover is rotatably arranged on the saw blade cover assembly and is used for shielding part of the saw blade; the rotating connection point of the protective cover and the saw blade is eccentrically arranged; further comprising: the first end of the connecting rod is rotatably arranged at the lower end part of the saw blade cover assembly, and the second end of the connecting rod is in rotating fit with a positioning piece on the protective cover; a sliding groove is formed in the second end of the connecting rod, and the positioning piece can slide in the sliding groove; the rotating connection point on the first end of the connecting rod and the rotating connection point of the protective cover can be connected into a first straight line, and when the positioning piece is arranged below the first straight line, the protective cover is locked and cannot rotate downwards.
Description
Technical Field
The utility model relates to the technical field of cutting machines, in particular to a shield limiting structure on a cutting machine.
Background
The cutting machine has a wide application range as a cutting tool, can be used for cutting a plurality of metal or nonmetal materials, and is quick and convenient to cut. A conventional cutting machine generally includes a table having a table supporting surface for supporting a workpiece and a cutting groove extending in a longitudinal direction provided on the table, a cutting unit having a motor and a saw blade provided above the table, the saw blade being at least partially inserted into the cutting groove, and a fence provided on the table for positioning the workpiece, the cutting unit being rotatably coupled to the table about a pivot shaft fixed relative to the table for cutting the workpiece.
At present, when the saw blade of all cutting machines on the market is replaced, the lower protective cover is pushed to the uppermost surface of the machine by hands to completely leak the saw blade, then the saw blade is replaced by a wrench, one hand is required to continuously push the lower protective cover in the process, the lower protective cover cannot be loosened, otherwise, the protective cover can rotate to cover part of the saw blade, the saw blade cannot be replaced, and therefore two people are often required to be matched with each other to complete the replacement of the saw blade, and the operation is very troublesome.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the guard shield limiting structure on the cutting machine, so that the guard shield can be limited and fixed when the saw blade needs to be replaced, and the saw blade can be replaced by a single person.
The technical scheme adopted by the utility model for solving the technical problems is as follows: guard shield limit structure on cutting machine includes: the saw blade cover assembly is rotatably arranged on the cutting machine main body; the saw blade is rotatably arranged in the saw blade cover assembly and is driven to rotate by the motor; the protective cover is rotatably arranged on the saw blade cover assembly and is used for shielding part of the saw blade; the rotating connection point of the protective cover and the saw blade is eccentrically arranged; further comprising: the first end of the connecting rod is rotatably arranged at the lower end part of the saw blade cover assembly, and the second end of the connecting rod is in rotating fit with a positioning piece on the protective cover; a sliding groove is formed in the second end of the connecting rod, and the positioning piece can slide in the sliding groove; the rotating connection point on the first end of the connecting rod and the rotating connection point of the protective cover can be connected into a first straight line, and when the positioning piece is arranged below the first straight line, the protective cover is locked and cannot rotate downwards.
In the above technical solution, further, when the saw blade cover assembly rotates downward, the limit of the guard shield by the connecting rod is released.
In the above technical solution, further, the blade cover assembly includes a blade cover, and a hollow concave portion is provided at a region of one side of the blade cover close to the center of the saw blade.
In the above technical solution, further, a fixing plate is disposed on the hollow concave portion, and the shield is rotatably mounted on the fixing plate through a screw.
The utility model has the beneficial effects that: the positioning piece is positioned at different positions on the connecting rod to limit the protective cover, so that the saw blade can be replaced by a single person.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the cutting state of the present invention.
Fig. 2 is another angle structure diagram of fig. 1 according to the present invention.
Fig. 3 is a schematic structural view of the shield of the present invention in a limiting state.
Fig. 4 is a schematic structural view of the saw blade of the present invention, which uses the plane direction of the saw blade as a projection plane.
FIG. 5 is a schematic view of the hidden blade of FIG. 1 according to the present invention.
Fig. 6 is a schematic structural view of the base, the turntable and the backup plate of the present invention.
FIG. 7 is a schematic view of the blade guard assembly of the present invention.
In the figure, 1, a base, 2, a rotating disc, 21, a vertical connecting plate, 22, a saw blade groove, 3, a backup plate, 31, a guide wall, 4, a saw blade cover assembly, 41, a saw blade cover, 411, a hollow concave part, 5, a saw blade, 51, a saw blade fastening piece, 6, a tension spring, 7, a shield, 8, an avoiding space, 9, a connecting rod, 91, a sliding groove, 10, a positioning piece, 11, a first straight line, 12, a fixing plate, 121, a groove, 13, a dust outlet, 14, a guide sleeve and 141, an avoiding groove.
Detailed Description
Referring to fig. 1-7, there are shown embodiments of the present invention: a cutting machine comprises a base 1 for providing support; a turntable 2 rotatably mounted on the base, wherein a vertical connecting plate 21 is arranged on one side of the turntable 2; a backup plate 3 which is arranged above the turntable 2 and two ends of which are detachably fixed on the base 1; the saw blade cover assembly 4 is rotatably arranged at the upper end part of the vertical connecting plate 21; and rotating a saw blade 5 mounted in the blade housing assembly 4 by a blade fastener 51. Further, saw bit cover assembly 4 includes saw bit cover 41, drive mechanism installation department, motor installation department, the saw bit drives a belt through the motor and drives its rotation still be provided with the handle on the 41 assemblies of saw bit cover, simultaneously in order to provide in the power of a lifting of saw bit cover assembly, the rotation installation that end of saw bit cover assembly 4 through an extension spring 6 with carousel 2 is connected, extension spring 6 is used for the pulling the main part of saw bit cover assembly 4 upwards rotates. Furthermore, a shield 7 is further arranged, and the shield 7 is rotatably mounted on the blade cover assembly 4 and used for shielding part of the saw blade 5 to achieve safety protection during work.
In order to facilitate the beveling of materials, the plane direction of the saw blade 5 is taken as a projection plane, and an avoidance space 8 which forms a distance with the installation center of the saw blade is arranged on the saw blade cover assembly 4; meanwhile, the rotating connection point of the saw blade cover assembly 4 is higher than the upper end surface of the backup plate 3; further, when the saw blade 5 is at the lowest moving point, the distance between the saw blade installation center and the turntable is 20-75 CM. By the arrangement, when the bevel angle is required to be cut for a material with a certain width, the material can be placed on the turntable 2 in a vertical state and abutted against the backup plate 3, the saw blade cover assembly 4 is lifted and rotated to a required angle, the handle is pressed down immediately to finish beveling of the material, and the saw blade cover 41 cannot be in contact with the material all the time in the whole process.
In order to realize the effect that the shield 7 can be limited when the saw blade 5 is replaced, the requirement of facilitating the replacement of the saw blade 5 is met. The rotating connection point of the protective cover 7 and the saw blade 5 is eccentrically arranged; the saw blade cover assembly also comprises a connecting rod 9, wherein a first end of the connecting rod 9 is rotatably arranged at the lower end part of the saw blade cover assembly 4, and a second end of the connecting rod 9 is in rotating fit with a positioning piece 10 on the protective cover 7; a sliding groove 91 is formed in the second end of the connecting rod 9, and the positioning piece 10 can slide in the sliding groove 91; the rotation connection point of the first end of the connecting rod 9 and the rotation connection point of the shield 7 can be connected to form a first straight line 11, and when the positioning member 10 is placed below the first straight line, the shield 7 is locked and cannot rotate downwards. Further, when the saw blade cover assembly 4 rotates downwards, the limit of the connecting rod 9 on the protective cover 7 is released. Further, the saw blade cover assembly 4 includes a saw blade cover 41, a hollow concave portion 411 is disposed on a region of one side of the saw blade cover 41 close to the center of the saw blade, a fixing plate 12 is disposed on the hollow concave portion 411, the shield 7 is rotatably mounted on the fixing plate 12 through a screw, the saw blade fastener 51 will not be limited by the fixing plate 12 or the shield 7 when moving out axially, a groove 121 is disposed on the fixing plate 12, the plane direction of the saw blade 5 is a projection plane, and a distance is formed between the groove 121 and the saw blade fastener 51. Meanwhile, in order to realize the adaptation of the protective cover 7, the outer edge contour line of the protective cover 7 is formed by multi-section arcs, and the center of each multi-section arc has a distance from the rotation center of the protective cover 7. During the use, earlier with saw bit cover assembly 4 lifting to the highest position to when 7 propelling movement of guard shield to the top, push down a distance with saw bit cover assembly 4 afterwards, loosen the hand that pushes away guard shield 7 this moment, guard shield 7 can keep can not rotatory downwards (as shown in fig. 3-4), alright complete liberation both hands immediately, come to easily realize changing saw bit 5, whole change in-process guard shield 7 can not fall, saw bit fastener 51 also has the space of dodging to conveniently dismantle simultaneously. Referring to fig. 1 and 5, when the present invention is cutting, the positioning member 10 is positioned above the first straight line, and the connecting rod 9 restricts the shield 7 from rotating upwards, thereby ensuring the safety of cutting.
In order to improve the dust removal efficiency of the cutting machine, one side of the vertical connecting plate 21 is provided with a dust outlet 13, and the other side of the vertical connecting plate is provided with a guide sleeve 14 communicated with the dust outlet 13; the turntable 2 is also provided with a saw blade groove 22; the backup plate 3 is provided with a guide wall 31, and the guide wall 31 is arranged below the guide sleeve 14. Specifically, the guide sleeve 14 is mounted on the saw blade cover assembly 4, and the backup plate 3 comprises a left unit and a right unit which are arranged at two sides of the saw blade 5 and a middle unit for connecting the left unit and the right unit; the middle unit is in the shape of a circular arc strip, and the inner side of the middle unit extends towards the lowest point of the saw blade 5 to form the guide wall 31. During operation, the scraps are discharged from the saw blade groove through the guide wall 31, the guide sleeve 14 and the dust outlet 13 in sequence.
In order to make the installation of the guide sleeve 14 more compact and reduce the escape space of the waste chips, the guide sleeve 14 is provided with an avoiding groove 141, and the saw blade 5 is partially disposed in the avoiding groove 141.
In order to prevent the scraps from falling below the turntable 2 or the base 1, the turntable 2 has no through grooves or holes at the upper and lower parts except for the central mounting hole.
Here, two cutting machines of traditional structure on the market are taken to carry out the comparison of dust rate, and concrete test result is as follows:
the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical scope of the present invention.
Claims (4)
1. Guard shield limit structure on cutting machine includes:
the saw blade cover assembly is rotatably arranged on the cutting machine main body;
the saw blade is rotatably arranged in the saw blade cover assembly and is driven to rotate by the motor;
the protective cover is rotatably arranged on the saw blade cover assembly and is used for shielding part of the saw blade;
it is characterized in that the preparation method is characterized in that,
the rotating connection point of the protective cover and the saw blade is eccentrically arranged;
further comprising: the first end of the connecting rod is rotatably arranged at the lower end part of the saw blade cover assembly, and the second end of the connecting rod is in rotating fit with a positioning piece on the protective cover;
a sliding groove is formed in the second end of the connecting rod, and the positioning piece can slide in the sliding groove;
the rotating connection point on the first end of the connecting rod and the rotating connection point of the protective cover can be connected into a first straight line, and when the positioning piece is arranged below the first straight line, the protective cover is locked and cannot rotate downwards.
2. The structure for limiting the shield on the cutting machine as claimed in claim 1, wherein the downward rotation of the blade shield assembly releases the limitation of the shield by the link.
3. The shield position limiting structure on a cutter as claimed in claim 1, wherein the blade cover assembly comprises a blade cover, and a region of one side of the blade cover close to the center of the saw blade is provided with a hollow recess.
4. The structure for limiting the shield on the cutting machine according to claim 3, wherein a fixing plate is provided on the hollow recess, and the shield is rotatably mounted on the fixing plate by a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122699457.4U CN216681400U (en) | 2021-11-05 | 2021-11-05 | Guard shield limit structure on cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122699457.4U CN216681400U (en) | 2021-11-05 | 2021-11-05 | Guard shield limit structure on cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216681400U true CN216681400U (en) | 2022-06-07 |
Family
ID=81832772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122699457.4U Active CN216681400U (en) | 2021-11-05 | 2021-11-05 | Guard shield limit structure on cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216681400U (en) |
-
2021
- 2021-11-05 CN CN202122699457.4U patent/CN216681400U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7458301B2 (en) | Worktable having adjustable shield | |
| CN202952234U (en) | Handheld power tool, tabular component and direction controlling assembly used for handheld power tool | |
| US4628605A (en) | Orbital bayonet saw | |
| US20060207683A1 (en) | Power tool | |
| US7752699B1 (en) | Tubing preparation machine | |
| WO2012099207A1 (en) | Hand-held electric cutting machine | |
| US20080168667A1 (en) | Portable cutting device with guiding guard | |
| JPH05185318A (en) | Circular saw device | |
| KR101159642B1 (en) | Processing machine for weld bead with improved stability | |
| CN216681400U (en) | Guard shield limit structure on cutting machine | |
| CN216441761U (en) | Cutting machine convenient to saw bit is changed | |
| CN105710439B (en) | Processing unit (plant) | |
| CN102950331A (en) | Cutting machine | |
| CN216680513U (en) | Cutting machine convenient to material is obliquely cut | |
| CN218398599U (en) | Efficient dust outlet structure on cutting machine | |
| EP2343146B1 (en) | Chop sawing machine provided with guard means | |
| US2944374A (en) | Grinding tool | |
| WO2007059604A1 (en) | A portable cutting device with guiding guard | |
| CN213352669U (en) | Cutting device for industrial processing | |
| KR200372048Y1 (en) | High speed cutting machine for horizontal adjusting angle | |
| CN108687883B (en) | Numerical control solid wood cutting milling saw machine | |
| EP1785244B1 (en) | Planer and/or thicknesser comprising a guard for a cutting tool | |
| CN113927081B (en) | Cutting tool with accurate positioning function and mounting method thereof | |
| CN220051993U (en) | Building material environmental protection recovery unit | |
| CN110421607A (en) | A kind of industrial roller brush carrying roller cutter device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |