CN112720740A - Be used for wood-cutting protection device - Google Patents
Be used for wood-cutting protection device Download PDFInfo
- Publication number
- CN112720740A CN112720740A CN202011617464.9A CN202011617464A CN112720740A CN 112720740 A CN112720740 A CN 112720740A CN 202011617464 A CN202011617464 A CN 202011617464A CN 112720740 A CN112720740 A CN 112720740A
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- China
- Prior art keywords
- transmission shaft
- fixedly connected
- spring
- electromagnet
- sliding block
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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
Abstract
The invention relates to the technical field of wood processing, and discloses a wood cutting protection device which comprises a transmission shaft, wherein a fluted disc is movably connected to the outer side of the transmission shaft, a sliding block movably connected with the inner wall of the fluted disc is movably connected to the outer side of the transmission shaft, a first magnetic block is fixedly connected to the inner part of the sliding block, and a first spring fixedly connected with the inner wall of the transmission shaft is fixedly connected to the inner side of the sliding block. This be used for wood cutting protection device, drive the moving part operation through spring two, rethread spring one is used with the cooperation of slider, stall suddenly when the fluted disc, the centrifugal force of moving part disappears and drives the moving part downstream under the effect of spring two, at this moment, the path voltage of resistance two is greater than the circuit voltage of negative plate, thereby reached the inboard that the transmission shaft was got back to the first electro-magnet outage slider under the effect of spring one and the purpose of second electro-magnet circular telegram absorption second magnetic path, effectively realized breaking away from the fluted disc and the transmission shaft continues the pivoted effect, the protection of cutting fluted disc has been realized.
Description
Technical Field
The invention relates to the technical field of wood processing, in particular to a wood cutting protection device.
Background
The wood processing is mainly carried out by mechanical or chemical methods by using wood as a raw material, the product still maintains the basic characteristics of the wood, in the forest industry, the wood processing industry and the forest product chemistry are important departments for comprehensively utilizing wood resources, the wood processing technology comprises the cutting of the wood, and the situation that parts inside the cutting machine are damaged due to the fact that a fluted disc is clamped easily when the cutting amount is too large during cutting is caused.
At present wood cutting still needs artifical manual to adjust the volume of feeding to timber mostly, and it is too much to feed the volume control not easy to appear and feed, and the condition that the cutting machine fluted disc blocked when leading to cutting timber continues to rotate the condition that causes the internals to damage easily at this moment, makes the card pause appear between fluted disc and the timber easily, causes the condition of the line off tracking of wood cutting.
Therefore, we propose a protection device for wood cutting to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a wood cutting protection device, which has the advantage of automatic protection when a cutting fluted disc is clamped, and solves the problem that internal parts of a cutting machine are damaged due to the clamping phenomenon between the fluted disc and wood when the cutting quantity is too much.
(II) technical scheme
In order to realize the purpose of automatic protection when the cutting fluted disc is clamped, the invention provides the following technical scheme: a protection device for wood cutting comprises a transmission shaft, wherein a fluted disc is movably connected to the outer side of the transmission shaft, a sliding block movably connected with the inner wall of the fluted disc is movably connected to the outer side of the transmission shaft, a first magnetic block is fixedly connected to the inner part of the sliding block, a first spring I fixedly connected with the inner wall of the transmission shaft is fixedly connected to the inner side of the sliding block, a first electromagnet is fixedly connected to the inner part of the transmission shaft and close to the inner side of the sliding block, a magnetic separation plate is fixedly connected to the top of the transmission shaft, a movable groove is formed in the top of the transmission shaft and close to the inner side of the magnetic separation plate, a positive plate is fixedly connected to the top of the transmission shaft and close to the left side of the movable groove, a negative plate is fixedly connected to the top of the transmission shaft and close, the top of transmission shaft and the bottom fixedly connected with second electro-magnet that is close to the movable groove, the inside swing joint in movable groove has the moving part, the bottom fixedly connected with second magnetic path of moving part, the inside fixedly connected with dielectric plate of moving part, the outside swing joint of moving part have with the inner wall roll connection's of movable groove ball, the top fixedly connected with of moving part and the top fixed connection's in movable groove spring two.
Preferably, the outer side of the sliding block is matched with a groove formed in the inner side of the fluted disc, the sliding block is made of hard high-strength materials, the size of the sliding block is smaller than that of the transmission shaft, and the sliding block plays a role in transmission and fixing of all parts.
Preferably, the first spring is an extension spring, the diameter of the first spring is smaller than the width of the sliding block, the first spring plays a role in contracting the sliding block towards the inner side, the magnetism generated on the outer side of the first electromagnet is the same as the magnetism of the inner side of the first magnetic block, the size of the first electromagnet is smaller than that of the transmission shaft, and the first electromagnet plays a role in magnetic transmission.
Preferably, the material of magnetism barrier is non-magnetic material and the shape of magnetism barrier is "V font", and the magnetism barrier plays the effect of isolated first electro-magnet and first magnetic path magnetic force, the size of activity groove is less than the size of transmission shaft and the shape of activity groove is cylindrical, and the activity groove plays the effect that the moving part of being convenient for removed.
Preferably, the first resistor is a voltage dependent resistor and has a minimum path voltage greater than a minimum circuit voltage across the negative plate, the first resistor is electrically connected with the first electromagnet, and the first electromagnet is connected and disconnected with the first electromagnet.
Preferably, the second resistor is a voltage dependent resistor, the maximum path voltage of the second resistor is smaller than the maximum circuit voltage of the negative plate, the second resistor is electrically connected with the second electromagnet, and the second resistor plays a role in connecting and disconnecting the second electromagnet circuit.
Preferably, magnetism generated on the top side of the second electromagnet is opposite to that of the bottom of the second magnetic block, the size of the second electromagnet is smaller than that of the transmission shaft, the second electromagnet plays a role in magnetic transmission, the moving part is made of a hard high-strength material, the size of the moving part is smaller than that of the moving groove, and the moving part plays a role in transmission and fixing of each part.
Preferably, the size of dielectric plate is less than the size of moving part and the height of dielectric plate is less than the height of positive plate, and the dielectric plate plays the effect that changes circuit voltage size, the material of ball is the shape of stereoplasm high strength material and ball for the sphere, and the ball plays the effect of reducing friction force, spring two is the width that the diameter of compression spring and spring two is less than the moving part, and spring two plays the effect that moves the moving part to the bottom.
(III) advantageous effects
Compared with the prior art, the invention provides a wood cutting protection device, which has the following beneficial effects:
1. this be used for wood cutting protection device, drive the moving part operation through spring two, rethread spring one is used with the cooperation of slider, stall suddenly when the fluted disc, the centrifugal force of moving part disappears and drives the moving part downstream under the effect of spring two, at this moment, the path voltage of resistance two is greater than the circuit voltage of negative plate, thereby reached the inboard that the transmission shaft was got back to the first electro-magnet outage slider under the effect of spring one and the purpose of second electro-magnet circular telegram absorption second magnetic path, effectively realized breaking away from the fluted disc and the transmission shaft continues the pivoted effect, the protection of cutting fluted disc has been realized.
2. This be used for wood cutting protection device, drive the operation of dielectric medium board through the moving part, the cooperation of the first electro-magnet of rethread and first magnetic path is used, when the transmission shaft rotates, utilize the effect moving part of centrifugal force to be upwards thrown away, at this moment the relative area between positive plate and the negative plate reduces, the path voltage of resistance one is greater than the voltage through the negative plate, thereby reached the purpose that first electro-magnet leads to the magnetism to reject first magnetic path, effectively realize the fixed effect of slider and fluted disc cooperation, thereby realized driving fluted disc pivoted effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of a disengagement structure of the fluted disc of the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 3 according to the present invention.
In the figure: 1. a drive shaft; 2. a fluted disc; 3. a slider; 4. a first magnetic block; 5. a first spring; 6. a first electromagnet; 7. a magnetic shield plate; 8. a movable groove; 9. a positive plate; 10. a negative plate; 11. a first resistor; 12. a second resistor; 13. a second electromagnet; 14. a movable member; 15. a second magnetic block; 16. a dielectric plate; 17. a ball bearing; 18. and a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a protection device for wood cutting comprises a transmission shaft 1, a fluted disc 2 is movably connected to the outer side of the transmission shaft 1, a slider 3 movably connected to the inner wall of the fluted disc 2 is movably connected to the outer side of the transmission shaft 1, the outer side of the slider 3 is matched with a groove formed on the inner side of the fluted disc 2, the slider 3 is made of hard high-strength material, the size of the slider 3 is smaller than that of the transmission shaft 1, the slider 3 plays a role in transmission and fixing of each component, a first magnetic block 4 is fixedly connected to the inside of the slider 3, a first spring 5 fixedly connected to the inner wall of the transmission shaft 1 is fixedly connected to the inner side of the slider 3, the first spring 5 is an extension spring, the diameter of the first spring 5 is smaller than the width of the slider 3, the first spring 5 plays a role in retracting the slider 3 to the inner side, a first electromagnet, the magnetism generated on the outer side of the first electromagnet 6 is the same as the magnetism on the inner side of the first magnetic block 4, the size of the first electromagnet 6 is smaller than that of the transmission shaft 1, the first electromagnet 6 plays a role in magnetic transmission, the top of the transmission shaft 1 is fixedly connected with a magnetic isolation plate 7, the magnetic isolation plate 7 is made of a non-magnetic conductive material, the shape of the magnetic isolation plate 7 is in a V shape, and the magnetic isolation plate 7 plays a role in isolating the first electromagnet 6 from the magnetism of the first magnetic block 4.
A moving part 14 is movably connected in the moving groove 8, the moving part 14 is made of a hard high-strength material, the size of the moving part 14 is smaller than that of the moving groove 8, the moving part 14 plays a role in transmission and fixing of each part, a second magnetic block 15 is fixedly connected at the bottom of the moving part 14, a dielectric plate 16 is fixedly connected in the moving part 14, the size of the dielectric plate 16 is smaller than that of the moving part 14, the height of the dielectric plate 16 is smaller than that of the positive plate 9, the dielectric plate 16 plays a role in changing the circuit voltage, a ball 17 in rolling connection with the inner wall of the moving groove 8 is movably connected to the outer side of the moving part 14, the ball 17 is made of a hard high-strength material, the ball 17 is spherical, the ball 17 plays a role in reducing friction, a second spring 18 fixedly connected with the top of the moving groove 8 is fixedly, the second spring 18 is a compression spring and the diameter of the second spring 18 is smaller than the width of the movable member 14, and the second spring 18 plays a role of moving the movable member 14 to the bottom.
The working principle is as follows: when wood is required to be cut, the transmission shaft 1 rotates, the movable part 14 is thrown out upwards under the action of centrifugal force, the second extrusion spring 18 continuously rotates, the relative area between the positive plate 9 and the negative plate 10 is reduced due to the upward movement of the dielectric plate 16, the circuit voltage is reduced, the first electromagnet 6 is electrified and magnetized due to the fact that the minimum path voltage of the first resistor 11 is larger than the minimum circuit voltage of the negative plate 10, the first electromagnet 6 is electrified due to the fact that the first electromagnet 11 is electrified, the magnetism generated on the outer side of the first electromagnet 6 is the same as the magnetism on the inner side of the first magnetic block 4, and the purpose that the first electromagnet 6 repels the first magnetic block 4 to operate is achieved by the principle that the same magnetism repels each other, the effect that the sliding block 3 is extruded and fixed to the outer side in a matched mode with the fluted disc 2;
when the fluted disc 2 stops suddenly, the centrifugal force of the moving part 14 disappears suddenly, the moving part 14 is driven to move downwards under the action of the spring II 18, at the moment, the relative area between the positive plate 9 and the negative plate 10 is increased due to the downward movement of the dielectric plate 16, so that the circuit voltage is increased, the first electromagnet 6 is powered off, the sliding block 3 returns to the inner side of the transmission shaft 1 under the action of the spring I5, meanwhile, the second electromagnet 13 is powered on due to the fact that the maximum path voltage of the second electromagnet 12 is smaller than the maximum circuit voltage of the negative plate 10, the second electromagnet 13 is powered on, and the magnetism generated on the top side of the second electromagnet 13 is opposite to the magnetism at the bottom of the second magnetic block 15, and the effect that the second electromagnet 13 adsorbs the second magnetic block 15 is achieved by utilizing the principle that opposite magnetism attracts, thereby realized automatic separation fluted disc 2 and transmission shaft 1 continues pivoted effect to realize cutting fluted disc 2's protection, ensured the integrality of cutting machine internals.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A protection device for wood cutting, comprising a transmission shaft (1), characterized in that: the outer side of the transmission shaft (1) is movably connected with a fluted disc (2), the outer side of the transmission shaft (1) is movably connected with a sliding block (3) movably connected with the inner wall of the fluted disc (2), the inner part of the sliding block (3) is fixedly connected with a first magnetic block (4), the inner side of the sliding block (3) is fixedly connected with a first spring (5) fixedly connected with the inner wall of the transmission shaft (1), the inner part of the transmission shaft (1) and the inner side close to the sliding block (3) are fixedly connected with a first electromagnet (6), the top of the transmission shaft (1) is fixedly connected with a magnetic separation plate (7), the top of the transmission shaft (1) and the inner side close to the magnetic separation plate (7) are provided with a movable groove (8), the top of the transmission shaft (1) and the left side close to the movable groove (8) are fixedly connected with a positive plate (9), the top, the top of transmission shaft (1) just is close to top fixedly connected with resistance (11) of positive plate (9), the top of transmission shaft (1) just is close to the top fixedly connected with resistance two (12) of negative plate (10), the top of transmission shaft (1) just is close to bottom fixedly connected with second electro-magnet (13) of activity groove (8), the inside swing joint of activity groove (8) has moving part (14), the bottom fixedly connected with second magnetic path (15) of moving part (14), the inside fixedly connected with dielectric plate (16) of moving part (14), the outside swing joint of moving part (14) has ball (17) with the inner wall roll connection of activity groove (8), the top fixedly connected with of moving part (14) and the top fixedly connected with spring two (18) of activity groove (8).
2. A protection device for wood cutting according to claim 1, characterized in that: the outer side of the sliding block (3) is matched with a groove formed in the inner side of the fluted disc (2), the sliding block (3) is made of hard high-strength materials, and the size of the sliding block (3) is smaller than that of the transmission shaft (1).
3. A protection device for wood cutting according to claim 1, characterized in that: the first spring (5) is an extension spring, the diameter of the first spring (5) is smaller than the width of the sliding block (3), the magnetism generated on the outer side of the first electromagnet (6) is the same as the magnetism of the inner side of the first magnetic block (4), and the size of the first electromagnet (6) is smaller than that of the transmission shaft (1).
4. A protection device for wood cutting according to claim 1, characterized in that: the magnetic isolation plate (7) is made of a non-magnetic-conductive material, the magnetic isolation plate (7) is V-shaped, the size of the movable groove (8) is smaller than that of the transmission shaft (1), and the movable groove (8) is cylindrical.
5. A protection device for wood cutting according to claim 1, characterized in that: the first resistor (11) is a voltage dependent resistor, the minimum path voltage of the first resistor (11) is larger than the minimum circuit voltage of the negative plate (10), and the first resistor (11) is electrically connected with the first electromagnet (6).
6. A protection device for wood cutting according to claim 1, characterized in that: the second resistor (12) is a voltage dependent resistor, the maximum path voltage of the second resistor (12) is smaller than the maximum circuit voltage of the negative plate (10), and the second resistor (12) is electrically connected with the second electromagnet (13).
7. A protection device for wood cutting according to claim 1, characterized in that: magnetism generated on the top side of the second electromagnet (13) is opposite to that of the bottom of the second magnetic block (15), the size of the second electromagnet (13) is smaller than that of the transmission shaft (1), the moving piece (14) is made of hard high-strength materials, and the size of the moving piece (14) is smaller than that of the moving groove (8).
8. A protection device for wood cutting according to claim 1, characterized in that: the size of the dielectric plate (16) is smaller than that of the movable element (14), the height of the dielectric plate (16) is smaller than that of the positive plate (9), the material of the ball (17) is hard high-strength material, the shape of the ball (17) is spherical, the spring II (18) is a compression spring, and the diameter of the spring II (18) is smaller than the width of the movable element (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011617464.9A CN112720740A (en) | 2020-12-30 | 2020-12-30 | Be used for wood-cutting protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011617464.9A CN112720740A (en) | 2020-12-30 | 2020-12-30 | Be used for wood-cutting protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112720740A true CN112720740A (en) | 2021-04-30 |
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ID=75611193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011617464.9A Pending CN112720740A (en) | 2020-12-30 | 2020-12-30 | Be used for wood-cutting protection device |
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| CN (1) | CN112720740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290637A (en) * | 2021-05-19 | 2021-08-24 | 周秀香 | Cutting device of stall braking for plywood processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875347A2 (en) * | 1997-04-30 | 1998-11-04 | Black & Decker Inc. | Guard and control apparatuses for sliding compound miter saw |
| CN202336761U (en) * | 2011-12-03 | 2012-07-18 | 吴志强 | Adjustable overload protection device |
| CN107442837A (en) * | 2017-08-24 | 2017-12-08 | 陈宗宗 | A kind of stronger cutting machine of security performance |
| CN207606355U (en) * | 2017-11-15 | 2018-07-13 | 林正津 | A kind of smart home production cutting wheel |
| CN111530354A (en) * | 2020-05-19 | 2020-08-14 | 缪月华 | Centrifugal force stall prevention-based stirring device for environment-friendly coating |
| CN111745093A (en) * | 2020-07-06 | 2020-10-09 | 杨灵艳 | A general type building materials fixed length cutting device for building engineering construction |
-
2020
- 2020-12-30 CN CN202011617464.9A patent/CN112720740A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0875347A2 (en) * | 1997-04-30 | 1998-11-04 | Black & Decker Inc. | Guard and control apparatuses for sliding compound miter saw |
| CN202336761U (en) * | 2011-12-03 | 2012-07-18 | 吴志强 | Adjustable overload protection device |
| CN107442837A (en) * | 2017-08-24 | 2017-12-08 | 陈宗宗 | A kind of stronger cutting machine of security performance |
| CN207606355U (en) * | 2017-11-15 | 2018-07-13 | 林正津 | A kind of smart home production cutting wheel |
| CN111530354A (en) * | 2020-05-19 | 2020-08-14 | 缪月华 | Centrifugal force stall prevention-based stirring device for environment-friendly coating |
| CN111745093A (en) * | 2020-07-06 | 2020-10-09 | 杨灵艳 | A general type building materials fixed length cutting device for building engineering construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290637A (en) * | 2021-05-19 | 2021-08-24 | 周秀香 | Cutting device of stall braking for plywood processing |
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