CN113441788B - Circular sawing machine safety device - Google Patents
Circular sawing machine safety device Download PDFInfo
- Publication number
- CN113441788B CN113441788B CN202110693048.5A CN202110693048A CN113441788B CN 113441788 B CN113441788 B CN 113441788B CN 202110693048 A CN202110693048 A CN 202110693048A CN 113441788 B CN113441788 B CN 113441788B
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- Prior art keywords
- hydraulic
- oil
- piston
- connecting pipe
- protective cover
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/06—Safety devices for circular cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
- B27G19/04—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
Abstract
The invention relates to the technical field of circular sawing machines, in particular to a safety protection device of a circular sawing machine, which comprises a machine table, a support seat, a support plate and a transmission, wherein the support seat is fixed on the machine table, and the support plate is hinged with the support seat; when the circular sawing machine is wholly turned over and reset, hydraulic oil in the energy storage tank flows back to the first oil cavity, so that the first piston is pushed to reset, the hydraulic oil in the first oil cavity flows back to the second hydraulic device through the oil pipe at the moment, the second protective cover is stored, the coverage area of the saw blade is reduced, and the heat dissipation of the saw blade is accelerated.
Description
Technical Field
The invention relates to the technical field of circular sawing machines, in particular to a safety protection device of a circular sawing machine.
Background
Circular sawing machines, which are mainly used for cutting wood and metal profiles, can be divided into three types, namely manual, semi-automatic and full-automatic, according to a control mode. Wherein manual circular sawing machine needs the operator to press the organism, and then lets the circular sawing machine wholly overturn, makes saw bit and section bar contact, and then reaches cutting effect in advance.
Among the prior art, manual formula circular sawing machine is when carrying out the manual cutting of pressing down, organism self pushes down and the speed of the return stroke that resets keeps unanimously, return stroke in-process speed that resets is on the wrong side fast, cause the operator easily to bump the occurence of failure, and simultaneously, current saw bit protection casing is fixed to be set up on the gearbox casing, when organism self overturns, the protection casing rotates along with the fuselage, the saw bit shelters from insufficiently soundly, when the saw bit cuts the section bar, the section bar residue can splash along with the saw bit, there is certain potential safety hazard, how to design a safety device of circular sawing machine becomes the technical problem who waits for solution in need of technical staff in the field urgently.
Disclosure of Invention
In view of this, the present invention aims to provide a circular sawing machine safety protection device, which has the advantages of preventing the residues of the section bar from splashing, accelerating the heat dissipation of the saw blade, solving the potential safety hazard existing in the working process of the circular sawing machine, and improving the safety of the circular sawing machine.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a safety protection device of a circular sawing machine comprises a machine table, a support plate and a speed changer, wherein the support is fixed on the machine table, the support plate is hinged with the support, the speed changer is fixed on the support plate, the support and the support plate are provided with a first hydraulic device for overturning, the first hydraulic device comprises a first hydraulic cylinder fixed on the support, a first oil cavity is arranged in the first hydraulic cylinder, a first piston for dividing the first oil cavity into two parts is arranged in the first oil cavity in a sliding mode, an energy storage tank for recovering hydraulic oil in the first oil cavity is arranged on the machine table, a first protection cover for protecting a saw blade is fixedly arranged on the speed changer, a second protection cover is rotatably arranged in the first protection cover, and a second hydraulic device for driving the second protection cover to rotate is fixedly arranged on the first protection cover, an oil pipe for conveying hydraulic oil is arranged between the second hydraulic device and the first oil cavity, so that the hydraulic oil between the second hydraulic device and the first hydraulic device can flow.
According to the invention, the whole circular sawing machine is turned downwards, hydraulic oil on one side inside the first oil cavity is pressed into the energy storage tank, meanwhile, negative pressure is generated on the other side of the first oil cavity, hydraulic oil inside the second hydraulic device is absorbed through the oil pipe, so that the second protective cover can be driven to be unfolded, the protection area of the circular sawing machine saw blade is enlarged, and residues generated in the cutting process of the section bar are prevented from splashing; when the circular sawing machine is wholly turned over and reset, hydraulic oil in the energy storage tank flows back to the first oil cavity, so that the first piston is pushed to reset, the hydraulic oil in the first oil cavity flows back to the second hydraulic device through the oil pipe at the moment, the second protective cover is stored, the coverage area of the saw blade is reduced, and the heat dissipation of the saw blade is accelerated.
Furthermore, a throttling device is arranged between the energy storage tank and the first oil cavity and comprises a first connecting pipe, a second connecting pipe and a one-way throttle valve, the first connecting pipe is communicated with the energy storage tank, the second connecting pipe is communicated with the first oil cavity, and the one-way throttle valve is communicated with the first connecting pipe and the second connecting pipe.
Furthermore, the one-way throttle valve controls hydraulic oil in the energy storage tank to slowly flow to the first oil cavity.
Further, the oil pipe and the second connecting pipe are located on two sides of the first piston and are communicated with the first oil cavity.
Furthermore, the second hydraulic device comprises a second hydraulic cylinder, a second oil cavity, a second piston and a second hydraulic rod, the second hydraulic cylinder is fixed on the first protective cover, the second oil cavity is located in the second hydraulic cylinder, the second piston is slidably mounted in the second oil cavity, and the first end of the second hydraulic rod is fixedly connected with the second piston.
Further, the oil pipe is communicated with the second oil chamber.
Furthermore, an arc-shaped sliding groove is formed in the first protective cover, a sliding block extending into the sliding groove is fixedly arranged on the second protective cover, and the second end of the second hydraulic rod is fixedly connected with the sliding block.
Furthermore, the output shaft of derailleur extends the derailleur, and the second protection casing is connected with the output shaft of derailleur rotation.
Further, the first hydraulic device further comprises a first hydraulic rod fixed on the support plate, and the first hydraulic rod extends into the first oil chamber and is fixedly connected with the first piston.
Furthermore, the support is provided with a hinged rod hinged with the support plate, and the rotating center of the first hydraulic rod is positioned on the axis of the hinged rod.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1;
FIG. 3 is an enlarged view of B in FIG. 1;
FIG. 4 is a cross-sectional view of FIG. 1;
FIG. 5 is an enlarged view of C in FIG. 4;
FIG. 6 is a sectional view of the shield position;
figure 7 is a cross-sectional view of a second cylinder position.
Reference numerals: 11. a machine platform; 12. a support; 13. a support plate; 14. a hinged lever; 15. a gearbox; 16. an energy storage tank; 17. a first hydraulic cylinder; 18. a first oil chamber; 19. a first hydraulic lever; 20. a first piston; 21. a first connecting pipe; 22. a second connecting pipe; 23. a one-way throttle valve; 24. an oil pipe; 25. a handle; 26. a first shield; 27. a second shield; 28. a chute; 29. a slider; 30. a second hydraulic cylinder; 31. a second hydraulic rod; 32. a second piston; 33. a second oil chamber.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
Example (b):
referring to fig. 1 and 7, the present embodiment provides a safety guard device for a circular saw machine, which is mainly used for being mounted on the circular saw machine for use to guard a saw blade of the circular saw machine.
The saw blade protection device comprises a machine table 11, a support 12, a support plate 13 and a transmission 15, wherein the support 12 is fixed on the machine table 11, the support plate 13 is hinged to the support 12, the transmission 15 is fixed on the support plate 13, the support 12 and the support plate 13 are provided with a first hydraulic device for overturning, the first hydraulic device comprises a first hydraulic cylinder 17 fixed on the support 12, a first oil cavity 18 is arranged in the first hydraulic cylinder 17, a first piston 20 for dividing the first oil cavity 18 into two parts is arranged in the first oil cavity 18 in a sliding manner, an energy storage tank 16 for recovering hydraulic oil in the first oil cavity 18 is arranged on the machine table 11, a first protection cover 26 for protecting a saw blade is fixedly arranged on the transmission 15, a second protection cover 27 is rotatably arranged in the first protection cover 26, and a second hydraulic device for driving the second protection cover 27 to rotate is fixedly arranged on the first protection cover 26, an oil pipe 24 for conveying hydraulic oil is arranged between the second hydraulic device and the first oil cavity 18, so that the hydraulic oil between the second hydraulic device and the first hydraulic device can flow;
specifically, the method comprises the following steps: the circular saw machine has two states, the first state is that the circular saw machine is in a vertical shape as shown in figure 1, and the second state is in a horizontal shape, and at the moment, the circular saw machine cuts the section.
In order to realize the slow return of the circular saw machine from the first state to the first state, as shown in fig. 2 and 5, a throttling device is arranged between the energy storage tank 16 and the first oil chamber 18, the throttling device comprises a first connecting pipe 21, a second connecting pipe 22 and a one-way throttle valve 23, the first connecting pipe 21 is communicated with the energy storage tank 16, the second connecting pipe 22 is communicated with the first oil chamber 18, and the one-way throttle valve 23 is communicated with the first connecting pipe 21 and the second connecting pipe 22.
The one-way throttle valve 23 controls the hydraulic oil in the energy storage tank 16 to slowly flow to the first oil chamber 18.
And the oil pipe 24 and the second connecting pipe 22 are positioned on two sides of the first piston 20 and are communicated with the first oil chamber 18.
Through the arrangement, when the circular saw is in the second state, the hydraulic oil on one side inside the first oil cavity 18 flows into the energy storage tank 16 to be stored, so that energy is stored in the energy storage tank 16, when the circular saw is recovered to the first state from the second state, the circular saw stops running at the moment, the energy in the energy storage tank 16 is released, the hydraulic oil in the energy storage tank slowly flows to the inside of the first oil cylinder 18 through the one-way throttle valve 23, the first piston 20 is further pushed to slide in the inside of the first oil cylinder 18, the support 12 is further pushed to overturn with the transmission 15, and the circular saw is slowly recovered to the second state from the first state.
In order to realize the driving of the second hydraulic device, in this embodiment, as shown in fig. 7, the second hydraulic device includes a second hydraulic cylinder 30, a second oil chamber 33, a second piston 32, and a second hydraulic rod 31, the second hydraulic cylinder 30 is fixed on the first shield 26, the second oil chamber 33 is located in the second hydraulic cylinder 30, the second piston 32 is slidably installed in the second oil chamber 33, and a first end of the second hydraulic rod 31 is fixedly connected to the second piston 32.
The oil pipe 24 communicates with the second oil chamber 33.
Through the arrangement, when the circular sawing machine is switched from the first state to the second state, the first piston 20 slides in the first oil chamber 18, the space of the first oil chamber 18 close to one side of the oil pipe 24 is enlarged, negative pressure is generated, hydraulic oil in the second oil chamber 33 is sucked, the second piston 32 is driven to slide in the second oil chamber 33 and drive the second hydraulic rod 31 to be recovered into the second oil chamber 33, when the circular sawing machine is switched from the second state to the first state, the first piston 20 slides in the first oil chamber 18, the space of the first oil chamber 18 close to one side of the oil pipe 24 is reduced, the hydraulic oil is conveyed into the second oil chamber 33 through the oil pipe 24, and the second hydraulic rod 31 is pushed to extend out of the second oil chamber 33 through the second piston 32.
In order to unfold or store the second protection cover 27, in this embodiment, as shown in fig. 3 and 7, an arc-shaped sliding slot 28 is formed in the first protection cover 26, a sliding block 29 extending into the sliding slot 28 is fixedly arranged on the second protection cover 27, and a second end of the second hydraulic rod 31 is fixedly connected to the sliding block 29.
The output shaft of the transmission 15 extends out of the transmission 15, and the second protective cover 27 is rotatably connected with the output shaft of the transmission 15
Through the above arrangement, the second hydraulic rod 31 can be extended and retracted, so that the sliding block 29 can be driven to slide in the sliding groove 28, and the fixedly connected second protection cover 27 can be driven to be unfolded or stored.
In order to realize the overturning of the support 12, in the embodiment, as shown in fig. 5, a grab handle 15 is fixedly arranged on the transmission 15, and the first hydraulic device further includes a first hydraulic rod 19 fixed on the support plate 13, and the first hydraulic rod 19 extends to the inside of the first oil chamber 18 and is fixedly connected with the first piston 20.
The support 12 is provided with an articulated rod 14 for being articulated with the support plate 13, and the rotation center of the first hydraulic rod 19 is positioned on the axis of the articulated rod 14.
Through the device, through with the wrench grip 15, and then exert pressure to derailleur 15 and support 12, and then drive support 12 and overturn around hinge rod 14, and then make first hydraulic stem 19 extend to first oil pocket 18 is inside, and then promote first piston 20 and slide, realize support 12 and the holistic rotation of circular sawing machine.
The implementation principle is as follows: firstly, the circular sawing machine is in a first state, the circular sawing machine is driven and drives the saw blade to rotate at a high speed, at the moment, two hands hold the holding handle 25 and press downwards, the transmission 15 and the support 12 are driven to rotate around the hinge rod 14, at the moment, the circular sawing machine is changed from the first state to a second state, then, hydraulic oil on one side of the first oil cavity 18 flows into the energy storage tank 16 through the one-way throttle valve 23 under normal pressure, at the moment, hydraulic oil in the second oil cavity 33 flows into the first oil cavity 18 through the oil pipe 24 to be stored, further, the second hydraulic rod 31 is driven to be stored into the second oil cavity 33, further, the sliding block 29 is driven to slide in the sliding groove 28, further, the second protective cover 27 is driven to be unfolded, at the moment, the saw blade continues to move downwards to cut the profile, the second protective cover 27 is unfolded to increase the protection of the saw blade, when the circular sawing machine stops working, the energy storage tank 16 increases the hydraulic oil, pressure grow, grab handle 25 is loosened to both hands this moment, the inside hydraulic oil of energy storage tank 16 flows to first oil pocket 18 inside through one-way throttle valve 23 is slow, and then with the circular sawing machine by the slow recovery to first state of second state, the inside hydraulic oil of first oil pocket 18 flows back to inside second oil pocket 33 through oil pipe 24 in this in-process, and then promote the outside extension of second hydraulic stem 31 and promote slider 29 and remove, and then realize accomodating of second protection casing 27, reduce the guard area to the saw bit, accelerate the radiating rate of saw bit.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the present invention.
Claims (8)
1. The utility model provides a circular sawing machine safety device, includes board (11), support (12), backup pad (13), derailleur (15), support (12) are fixed on board (11), backup pad (13) with support (12) are articulated, derailleur (15) are fixed on backup pad (13), its characterized in that: the supporting seat (12) and the supporting plate (13) are provided with a first hydraulic device for overturning, the first hydraulic device comprises a first hydraulic cylinder (17) fixed on the supporting seat (12), a first oil cavity (18) is arranged in the first hydraulic cylinder (17), a first piston (20) for dividing the first oil cavity (18) into two parts is arranged in the first oil cavity (18) in a sliding manner, an energy storage tank (16) for recovering hydraulic oil in the first oil cavity (18) is arranged on the machine table (11), a first protective cover (26) for protecting a saw blade is fixedly arranged on the speed changer (15), a second protective cover (27) is rotatably arranged in the first protective cover (26), a second hydraulic device for driving the second protective cover (27) to rotate is fixedly arranged on the first protective cover (26), and an oil pipe (24) for conveying hydraulic oil is arranged between the second hydraulic device and the first oil cavity (18), so that hydraulic oil circulates between second hydraulic means and the first hydraulic means, energy storage jar (16) with be equipped with throttling arrangement between first oil pocket (18), throttling arrangement includes first connecting pipe (21), second connecting pipe (22), one-way throttle valve (23), first connecting pipe (21) with energy storage jar (16) intercommunication, second connecting pipe (22) with first oil pocket (18) communicate each other, one-way throttle valve (23) with first connecting pipe (21) and second connecting pipe (22) intercommunication, one-way throttle valve (23) control energy storage jar (16) inside hydraulic oil slowly flow to first oil pocket (18).
2. The circular saw machine safety guard of claim 1, wherein: and the second connecting pipe (22) is positioned on two sides of the first piston (20) and is communicated with the first oil chamber (18).
3. The circular saw machine safety guard of claim 1, wherein: the second hydraulic device comprises a second hydraulic cylinder (30), a second oil cavity (33), a second piston (32) and a second hydraulic rod (31), wherein the second hydraulic cylinder (30) is fixed on the first protective cover (26), the second oil cavity (33) is located in the second hydraulic cylinder (30), the second piston (32) is slidably installed in the second oil cavity (33), and the first end of the second hydraulic rod (31) is fixedly connected with the second piston (32).
4. The circular saw machine safety guard of claim 3, wherein: the oil pipe (24) is communicated with the second oil chamber (33).
5. The circular saw machine safety guard apparatus as claimed in claim 4, wherein: seted up curved spout (28) on first protection casing (26), fixed being equipped with on second protection casing (27) extends to slider (29) inside spout (28), the second end of second hydraulic stem (31) with slider (29) fixed connection.
6. The circular saw machine safety guard of claim 1, wherein: the output shaft of the speed changer (15) extends out of the speed changer (15), and the second protective cover (27) is in rotary connection with the output shaft of the speed changer (15).
7. The circular saw machine safety guard of claim 1, wherein: the first hydraulic device further comprises a first hydraulic rod (19) fixed on the supporting plate (13), and the first hydraulic rod (19) extends into the first oil chamber (18) and is fixedly connected with the first piston (20).
8. The circular saw machine safety guard of claim 7, wherein: the support (12) is provided with a hinged rod (14) hinged with the support plate (13), and the rotating center of the first hydraulic rod (19) is positioned on the axis of the hinged rod (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110693048.5A CN113441788B (en) | 2021-06-22 | 2021-06-22 | Circular sawing machine safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110693048.5A CN113441788B (en) | 2021-06-22 | 2021-06-22 | Circular sawing machine safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113441788A CN113441788A (en) | 2021-09-28 |
| CN113441788B true CN113441788B (en) | 2022-04-22 |
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ID=77812102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110693048.5A Active CN113441788B (en) | 2021-06-22 | 2021-06-22 | Circular sawing machine safety device |
Country Status (1)
| Country | Link |
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| CN (1) | CN113441788B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905443A (en) * | 2022-07-19 | 2022-08-16 | 太原市立科致业科技有限公司 | Fixing tool for single-sided printed integrated circuit board in electronic industry |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893311A (en) * | 1997-04-28 | 1999-04-13 | Huang; Peter | Protective covers of power saw |
| DE102006048560A1 (en) * | 2006-10-13 | 2008-04-17 | Robert Bosch Gmbh | guard |
| DE102007044801A1 (en) * | 2007-09-20 | 2009-04-09 | Robert Bosch Gmbh | machine tool |
| CN202411535U (en) * | 2011-12-19 | 2012-09-05 | 上海锐奇工具股份有限公司 | Cutting saw with safety protection device |
| CN103357954A (en) * | 2013-07-04 | 2013-10-23 | 扬州市胜达电动工具有限公司 | Cutting machine |
| CN208083569U (en) * | 2018-02-27 | 2018-11-13 | 新昌县平海汽车配件有限公司 | A kind of building bar cutter device |
| CN208787651U (en) * | 2018-09-05 | 2019-04-26 | 宁波协诚电动工具有限公司 | Multifunctional saw |
| CN211135741U (en) * | 2019-11-11 | 2020-07-31 | 西安博源消防设备有限公司 | Novel fire control cutting device |
| CN212169176U (en) * | 2020-04-20 | 2020-12-18 | 武义博海电动工具有限公司 | Novel cutting machine |
-
2021
- 2021-06-22 CN CN202110693048.5A patent/CN113441788B/en active Active
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| CN113441788A (en) | 2021-09-28 |
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