CN116373041A - Intelligent hand guard device and method for planer - Google Patents

Intelligent hand guard device and method for planer Download PDF

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Publication number
CN116373041A
CN116373041A CN202310428745.7A CN202310428745A CN116373041A CN 116373041 A CN116373041 A CN 116373041A CN 202310428745 A CN202310428745 A CN 202310428745A CN 116373041 A CN116373041 A CN 116373041A
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China
Prior art keywords
plate
milling cutter
cutter shaft
spring
workbench
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CN202310428745.7A
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Chinese (zh)
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CN116373041B (en
Inventor
刘春明
周培刚
王汉军
袁清霞
马加俊
董昌芳
张敬刚
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Shandong Qiaoduo Tiangong Furniture Co ltd
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Shandong Qiaoduo Tiangong Furniture Co ltd
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Publication of CN116373041A publication Critical patent/CN116373041A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/10—Hand planes equipped with power-driven cutter blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/14—Other details or accessories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Abstract

The utility model provides an intelligence hand protector device of planer installs at the workstation of planer and keeps away from deflector one side, specifically includes slider, rotation piece, nature return piece, intelligent return piece, detection piece and control module. The safety protection, the quick return and the resistance-free processing are integrated. A sliding piece with one end rotatably connected to one side of the workbench far away from the guide plate is used for shielding the milling cutter shaft, so that a basic safety protection function is realized; the intelligent return piece is cooperated with the natural return piece to realize quick return; when the workpiece and the sliding part are in contact with each other, the lower part of the sliding part is in rolling contact with the workbench through the roller assembly, the upper part of the sliding part is in rolling contact with the side surface of the workpiece through the circular plate, the intelligent return part does not participate in return work, the circular plate is positioned at the far end of the rotating point of the flat plate, and the workpiece can be processed through the upper part of the milling cutter shaft by applying very small force. The whole working mode is greatly superior to the existing protection mode.

Description

Intelligent hand guard device and method for planer
Technical Field
The invention relates to the technical field of woodworking planer, in particular to an intelligent hand protector device of a planer.
Background
The woodworking plane planer is a common tool in woodworking industry, and is mainly characterized in that a driving motor is used for driving a milling cutter shaft to rotate, the upper end of the milling cutter shaft is slightly higher than the surface of a workbench, a guide plate with an adjustable position is arranged on one side of the workbench, and when a workpiece to be processed moves along the guide plate and passes over the milling cutter shaft, the lower surface of a plate is polished. Since the planing opening of the planing machine is exposed, workers are at risk when planing wood, especially when planing small wood, and often work injuries occur when the fingers are in close contact with the rotating cutter.
Some hand protection devices are arranged on the existing planing machine, and the simplest is that one end, far away from the guide plate, of the milling cutter shaft is connected with a protection plate in a rotating mode, the protection plate is opened when wood is processed, and the milling cutter shaft is shielded by the protection plate in the rotating mode when wood is not processed. Under the processing state, the milling cutter shaft is still in the exposed state, and the device can not solve the problem that fingers are contacted with the cutter during working.
Some protection tools such as a protection device of a woodworking planer with a patent number of CN201922041780.5 and a protection device of a woodworking planer with a patent number of CN201822168808.7 and a protection device of a woodworking planer with a safety protection function are provided, and a protection cover capable of moving up and down is provided above a milling cutter shaft in working. However, such protection tools have a great limitation, namely, they are all fixed protection tools, and during processing, fingers can be prevented from extending to the cutter to a certain extent, but in a processing state, the area above the milling cutter shaft beyond the wood is still exposed, and the danger that the fingers of workers still exist in contact with the cutter is still present.
Therefore, the fixed protection device can only treat the symptoms, but not the root cause, and can not always shield the area outside the wood placement position of the milling cutter shaft in the processing state.
Disclosure of Invention
The invention provides an intelligent hand protector for a planer, which aims to solve the technical problem that the traditional fixed hand protector in the background art can not always shield the area beyond the wood placement position of a milling cutter shaft in a processing state.
The technical scheme of the invention is as follows:
the intelligent hand guard device for the planer is arranged on one side, away from the guide plate, of a workbench of the planer and specifically comprises a sliding part, a rotating part, a natural return part, an intelligent return part, a detection part and a control module;
the sliding piece comprises a flat plate and a roller assembly, one end of the flat plate is rotatably connected to one side, far away from the guide plate, of the workbench, the other end of the flat plate is provided with the roller assembly, the roller assembly comprises a roller, the roller is rotatably connected with the flat plate, and the height of the lower part of the roller assembly, which is exposed out of the flat plate, is larger than the height of a milling cutter shaft on the planer, which is higher than the workbench;
the rotating piece is connected above the flat plate in a rotating way and comprises a circular plate which is arranged parallel to the flat plate, one side of the circular plate, which is close to the guide plate, extends out of the edge of the flat plate, the part, extending out of the edge of the flat plate, can be contacted with the guide plate when rotating around a flat plate rotating point, and the diameter of the circular plate is designed to be that the path of the circular plate when rotating around the flat plate rotating point covers more than half of the area of the milling cutter shaft; the processing width of the common wood processing workpiece is generally between 1 cm and 20cm, and the guide plate is also generally pushed forward to enable the processing workpiece to be positioned at the center of the workbench as much as possible when in use, so that the problem that the milling cutter shaft is exposed at the processing side can be solved as long as the circular plate rotating path is ensured to cover more than half of the area of the milling cutter shaft when the workpiece is processed.
The natural return piece is arranged at the joint of the flat plate and the workbench and comprises a first mounting plate and a first spring thereon, the first mounting plate is arranged on the outer wall of one side of the workbench far away from the guide plate, and the first spring is used for pulling the sliding piece to move towards the guide plate; because the action amplitude of the sliding piece on the side close to the milling cutter shaft is larger, the natural return piece is arranged on the side far away from the milling cutter shaft, and the sliding piece is pushed to return by pulling the tail end of the sliding piece with the smallest action amplitude through the first spring.
Because the workpiece is required to overcome the elastic force of the first spring when pushing the sliding piece to move, the elastic force of the first spring is not excessively large, and the sliding piece can be just pushed to return to the original position in order to reduce the moving resistance of the workpiece.
The resistance in the moving process of the workpiece is taken into consideration, the elastic force of the first spring is required to be reduced, but a new problem is generated, namely the return speed of the sliding part is low, and the intelligent return part is specially designed in consideration of the problem.
The intelligent return piece is adjacently arranged with the natural return piece and comprises an electromagnet, a second spring and an iron plate, wherein the electromagnet is fixed below the flat plate, the upper end of the iron plate is fixed on the flat plate, the second spring is fixed at one side of the lower end of the iron plate facing the electromagnet,
the iron plate is positioned outside the workbench when the circular plate is positioned above the milling cutter shaft;
the second spring is propped against the electromagnet when the circular plate is all positioned above the milling cutter shaft;
the detection piece is used for acquiring the real-time distance between the detection piece and the processing part;
the control module acquires a signal transmitted by the detection piece, compares the signal with a preset distance threshold, and controls the electromagnet to be started for preset time and then stopped when the real-time distance is detected to be equal to the preset distance threshold. When no workpiece is detected above the milling cutter shaft of the workbench, the system judges that the first spring drives the sliding part to return slowly, and the sliding part is required to be guaranteed to return quickly to the abutting guide plate to seal the planing opening in consideration of the fact that the workpiece to be processed is possibly placed on the workbench at any time for processing, so that injury to people is prevented, the electromagnet is started for a preset time of 0-1s when the detecting part detects that no workpiece is arranged above the milling cutter shaft of the workbench, the preset time is determined according to the size of the workbench and the size of the hand guard device, in the preset time, the electromagnet can attract an iron plate on the sliding part, and the iron plate drives the sliding part to move quickly towards the direction of the guide plate, so that the sliding part returns quickly under the combined action of the natural return part and the intelligent return part to shield the milling cutter shaft.
Furthermore, the magnetic force of the electromagnet is also based on the weight of the sliding piece, so that the sliding piece can be pulled to rotate and return for 1s to select the model. Through the design of intelligent return piece, make the slider return fast, then the electro-magnet outage, no matter be work piece make a round trip to promote the processing on the workstation, still place new work piece processing, when can both guarantee that the work piece reaches the milling cutter axle position, the slider shields the milling cutter axle, and the slider receives only the less first spring effect of elasticity, makes the work piece can easily push away the slider and slide milling cutter axle top processing.
The utility model provides a pair of planer intelligence hand protector device changes traditional fixed protection mode, and the innovative design of an intelligent movable protection mode collects multiple characteristics in an organic whole of safety protection, quick return and resistance-free processing. Wherein, based on the safety protection, a sliding piece with one end rotatably connected to one side of the workbench far away from the guide plate is adopted to shield the milling cutter shaft;
and quick return and resistance-free processing are the core invention points of the application.
The natural return sliding piece is adopted to shield the milling cutter shaft, so that the milling cutter shaft is completely shielded before the next processing action of the workpiece is started, and the technical problem of creative breakthrough in the application is solved.
Secondly, the work of the workpiece against the resistance of the sliding part is necessarily increased by accelerating the natural return speed, and the method is a technical problem II of creative breakthrough of the application.
And thirdly, the sliding piece always presses the workpiece under the action of the first spring, so that corresponding resistance can be necessarily generated, and the problem of how to eliminate the resistance of the sliding piece, so that the workpiece can pass through the milling cutter shaft without resistance or with low resistance, and the technical problem of creative breakthrough in the application is solved.
There is no technical solution of the present application in the prior art, nor is there any solution to the three problems described above. The cooperative design of the sliding part, the rotating part, the natural return part, the intelligent return part, the detection part and the control module perfectly solves the three technical problems, and achieves good use effect in practical application.
The specific structure of the present application is described below with respect to the design of specific structural members.
Regarding the slider portion, the flat plate includes a connection portion and a support portion connected in order;
one end of the connecting part is rotationally connected with the first mounting plate, the other end of the connecting part is connected with the supporting part, the upper part of the supporting part is rotationally connected with the circular plate, and a plurality of roller assemblies are arranged below the supporting part. When the workpiece and the sliding piece are contacted with each other, the lower part of the sliding piece is in rolling contact with the workbench through the roller component, and the upper part of the sliding piece is in rolling contact with the side surface of the workpiece through the circular plate, so that the work of the workpiece for overcoming the resistance of the sliding piece is greatly reduced, and the workpiece passes through the upper part of the milling cutter shaft without resistance or with low resistance.
Further, the support part is further provided with a hand-held part on one side far away from the connecting part, the length of the hand-held part is shorter than 112 degrees of the connecting part, and the hand-held part inclines towards one side far away from the guide plate relative to the center line of the connecting part. The hand portion is used as an auxiliary component and is arranged on one side far away from the rotating point of the flat plate, and when wider workpieces are processed, the flat plate can be rotated with minimum force to be far away from the guide plate, so that the workpieces can be conveniently placed. Simultaneously, the connecting part central line of the connecting part is inclined towards one side far away from the guide plate so as to be far away from the guide plate as far as possible, so that a large space is reserved, and wood to be processed is conveniently placed from two sides of the milling cutter shaft.
Further, the roller components at least comprise 2 groups, at least one roller component is respectively arranged on two sides of the supporting part opposite to the milling cutter shaft, and when the position of the roller component on the supporting part is designed to be at least 1/3 of the width of the workbench on one side of the guide plate far away from the workbench, the rolling track of the roller component is not contacted with the milling cutter shaft, so that the use safety is ensured.
Further, the supporting part is in a circular arc structure and is eccentrically connected with the center of the circular plate through the first upright post, one end close to the guide plate is positioned below the circular plate, and one end far away from the guide plate is longer than the circular plate. The eccentric distance between the two is not excessively large, preferably between 1 cm and 3cm, so that the boundary of the workbench is prevented from being drawn out too early by the center of the supporting part when wider wood is processed, and the sliding part is prevented from losing function.
Preferably, at least one roller assembly is in contact with the table when the center of the support reaches the boundary of the table.
As a further preferred option, the work table is provided with a milling cutter shaft fixing seat at one end far away from the guide plate, the upper surface of the work table is flush with the upper surface of the work table, and the central track of the supporting part passes through the upper surface of the milling cutter shaft fixing seat.
Regarding the natural return, further comprising:
the second upright post penetrates through the flat plate and is connected to the first mounting plate;
the third upright post is positioned on one side of the second upright post close to the milling cutter shaft and one side of the second upright post far away from the guide plate is arranged on the first mounting plate;
the fourth upright post is positioned on one side of the second upright post, close to the milling cutter shaft, and is arranged on the flat plate;
the vertical distance between the fourth upright post, the second upright post and the third upright post and the guide plate is gradually increased;
the first spring is a torsion spring, the middle part is sleeved on the second upright, one end of the first spring is abutted against the inner side of the third upright, and the other end of the first spring is abutted against the inner side of the fourth upright;
and a yielding hole is formed in one side, close to the third upright post, of the flat plate.
With respect to the intelligent return piece, the intelligent return piece is positioned at the front end of the natural return piece, the electromagnet is fixed on the outer side wall of the workbench through the second mounting plate, and the iron plate is positioned at the front end of the abdicating hole.
The quick return and the safe conflict deflector of slider are taken into consideration in the overall design, the elasticity of first spring is greater than the second spring, and the elasticity of first spring can promote the dull and stereotyped rotation around the second stand, supports the plectane on the deflector. The second spring can be fast contradicted on the electro-magnet during operation of electro-magnet to produce a reaction force to the flat board, thereby give a buffer force to the flat board when the plectane is about to contradict the deflector, with the power of slowing down plectane collision deflector, the second spring cooperates the design with the circular telegram time of electro-magnet, has realized the slider safety in the time of fast return and has moved the deflector. At the same time, the elastic force of the first spring is larger than that of the second spring, and when the sliding piece approaches the guide plate, the sliding piece can be slowly leaned against the guide plate against the reaction force.
Regarding the detection piece, the detection piece comprises a fourth mounting plate, is fixed on the outer side wall of the workbench at the front end of the flat plate rotating track, is obliquely provided with a vertical plate, and is fixedly provided with a ranging sensor which points to the junction of the milling cutter shaft and the guide plate, and the height of the ranging sensor is larger than that of the circular plate.
The application also provides an intelligent hand protecting method of the planer, which comprises the following specific steps:
s1, starting a power supply of a planer, and starting a milling cutter shaft and a control module to work;
s2, moving the workpiece from one side of a natural return part of the workbench along a guide plate to a milling cutter shaft;
s3, the workpiece abuts against the circular plate, the flat plate and the circular plate on the flat plate are pushed to rotate around the second upright post under the forward thrust action, the roller assembly below the flat plate moves along an arc line on the upper surface of the workbench at a height higher than that of the milling cutter shaft, and meanwhile, the circular plate freely rolls along the side surface of the workpiece, so that no resistance is generated to the workpiece;
meanwhile, as the workpiece is always positioned above the milling cutter shaft, the real-time distance measured by the detection part is smaller than the preset distance threshold, the electromagnet does not work, the second spring is far away from the workbench, the workpiece can advance only by overcoming the elasticity of the first spring on the natural return part, and the workpiece passes through the milling cutter shaft with lower resistance;
s4, the workpiece leaves the circular plate, at the moment, no workpiece exists above the milling cutter shaft, the real-time distance measured by the detection part is equal to a preset distance threshold value, the electromagnet is started for a preset time and then stopped, the electromagnet attracts the iron block of the intelligent return part when being electrified within the preset time, so that the flat plate returns under the action of the electromagnet and the action of the first spring, and meanwhile, the speed of the circular plate approaching the guide plate is slowed down when the second spring is abutted against the electromagnet, so that the circular plate is protected;
s5, abutting the circular plate against the guide plate under the action of the electromagnet and the action of the first spring, taking another workpiece and placing the workpiece on the workbench, and repeating the operation steps of S2-S4;
and S6, after all the workpieces are processed, turning off the power supply of the planer.
Through the design, the intelligent hand guard device for the planer changes a traditional fixed protection mode, creatively designs an intelligent movable protection mode, and integrates multiple characteristics of safety protection, quick return and resistance-free processing. The safety protection is based, a sliding piece with one end rotatably connected to one side of the workbench far away from the guide plate is used for shielding the milling cutter shaft, and quick return and resistance-free machining are the core invention points of the milling cutter shaft.
The quick return and the safe conflict deflector of slider are taken into consideration in the overall design, the elasticity of first spring is greater than the second spring, and the elasticity of first spring can promote the dull and stereotyped rotation around the second stand, supports the plectane on the deflector. The second spring can be fast contradicted on the electro-magnet during operation of electro-magnet to produce a reaction force to the flat board, thereby give a buffer force to the flat board when the plectane is about to contradict the deflector, with the power of slowing down plectane collision deflector, the second spring cooperates the design with the circular telegram time of electro-magnet, has realized the slider safety in the time of fast return and has moved the deflector. At the same time, the elastic force of the first spring is larger than that of the second spring, and when the sliding piece approaches the guide plate, the sliding piece can be slowly leaned against the guide plate against the reaction force.
When the workpiece and the sliding piece are in contact with each other, the lower part of the sliding piece is in rolling contact with the workbench through the roller assembly, the upper part of the sliding piece is in rolling contact with the side surface of the workpiece through the circular plate, the intelligent return piece does not participate in return work, the circular plate is positioned at the far end of the rotating point of the flat plate, and the workpiece can pass through the upper part of the milling cutter shaft only by applying very small force.
Therefore, the intelligent hand guard device of the planer is greatly superior to the existing protection mode.
Drawings
In the drawings:
FIG. 1 is a top view of a planer intelligent hand guard applied to a small workpiece;
FIG. 2 is a top view of the intelligent hand guard of the planer as applied to a large workpiece;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is an enlarged view of a portion of the junction of the circular plate and the flat plate;
FIG. 5 is a state diagram of the work piece exiting the planer intelligent hand guard;
FIG. 6 is an enlarged partial view of the natural and intelligent return mounting locations
FIG. 7 is a side view of the intelligent return;
FIG. 8 is a schematic structural view of the detecting member, wherein (a) is a front view and (b) is a top view;
the components represented by the reference numerals in the figures are:
1. a slider; 11. a flat plate; 111. a support part; 1111. a roller groove; 112. a connection part; 1121. a relief hole; 113. a hand-held portion; 12. a roller assembly; 121. a roller; 122. a mounting piece; 2. a rotating member; 21. a circular plate; 22. a first upright; 23. a shaft sleeve; 3. a natural return member; 31. a first mounting plate; 32. a second upright; 33. a third upright; 34. a fourth upright; 35. a torsion spring; 4. an intelligent return piece; 41. a second mounting plate; 42. an electromagnet; 43. a third mounting plate; 44. a buffer spring; 5. a detecting member; 51. a fourth mounting plate; 52. a vertical plate; 53. a ranging sensor; 6. a work table; 7. a guide plate; 8. milling cutter shaft; 9. a workpiece.
Detailed Description
Referring to fig. 1-5, an intelligent hand guard device for a planer is mounted on the side of the planer table 6 remote from the guide plate 7, i.e. on the opposite side of the guide plate 7. The intelligent return device comprises a sliding part 1, a rotating part 2, a natural return part 3, an intelligent return part 4, a detecting part 5 and a control module;
the sliding piece 1 mainly plays a role of sliding on a workbench surface to shield the milling cutter shaft 8 and bearing the rotating piece 2.
Specifically, taking fig. 1 as an example, the workbench 6 is rectangular, the guide plates 7 are arranged in parallel on long sides, one end of each of the flat plates 11 is rotatably connected to the intersection of the long sides and the short sides of the workbench on the opposite sides of the guide plates 7, the other end of each of the flat plates is provided with the roller assemblies 12, a rotating member 2 is rotatably connected above the roller assemblies 12, the rotating member 2 comprises a circular plate 21, and the rotating member moves near the upper part of the milling cutter shaft 8.
By rotationally connecting the flat plate 11 at one end far away from the milling cutter shaft 8, the space of the workbench can be occupied less, the workpiece 9 can be placed conveniently, and a longer force arm can be formed, so that the labor is saved when the workpiece 9 pushes the sliding piece 1 to move.
Further, the flat plate 11 includes a connection part 112 and a support part 111 connected in sequence;
one end of the connecting part 112 is rotatably connected to the intersection of the long and short sides of the worktable on the opposite side of the guide plate 7, and the other end is connected to the supporting part 111, and the length of the connecting part 112 is designed such that the center of the supporting part 111 has an intersection with the axis of the milling cutter shaft 8. The supporting part 111 is rotatably connected to the circular plate 21 above and a plurality of roller assemblies 12 are installed below. When the workpiece 9 and the sliding part 1 are contacted with each other, the lower part of the sliding part 1 is in rolling contact with the workbench 6 through the roller component 12, and the upper part of the sliding part 1 is in rolling contact with the side surface of the workpiece 9 through the circular plate 21, so that the work done by the workpiece 9 against the resistance of the sliding part 1 is greatly reduced, and the workpiece 9 passes through the upper part of the milling cutter shaft 8 without resistance or with low resistance.
Specifically, the width of the connecting portion 112 is smaller than the size of the supporting portion 111, and the size of the supporting portion 111 is not larger than the size of the circular plate 21, so as to avoid interference with the machined workpiece.
Further, the support portion 111 is further provided with a holding portion 113 on a side away from the connecting portion 112, the holding portion 113 is shorter than the connecting portion 112 in length, and the holding portion 113 is inclined toward a side away from the guide plate 7 with respect to a center line of the connecting portion 112. The hand 113 is provided as an auxiliary member on the side away from the rotation point of the plate 11, and can rotate the plate 11 away from the guide plate 7 with a minimum force when processing a wide workpiece 9, thereby facilitating placement of the workpiece 9. Meanwhile, the central line of the connecting part 112 inclines towards the side far away from the guide plate 7 so as to be far away from the guide plate 7 as far as possible, so that a large space is reserved, and wood to be processed is conveniently placed from two sides of the milling cutter shaft 8.
Further, the width of the supporting portion 111 is larger than the width of the connecting portion 112 and the holding portion 113, preferably larger than 1/3 of the width of the table 6, so that the supporting portion can be well matched with the circular plate 21 to shield the milling cutter shaft 8.
Referring to fig. 4, a plurality of roller grooves 1111 are formed in the supporting portion 111, the roller assembly 12 below includes a roller 121 and a mounting plate 122, the roller 121 is mounted in the roller grooves 1111, the mounting plate 122 is disposed at a position below the supporting portion 111, the opening of the mounting plate 122 is smaller than the diameter of the roller 121, a pressing piece is disposed at an upper portion of the roller grooves 111, the roller 121 is fixed between the pressing piece and the mounting plate 122, and the roller 121 can freely roll in the roller grooves 1111.
Further, the height of the exposed part of the flat plate 11 below the roller 121 is larger than the height of the milling cutter shaft 8 on the planer, which is higher than the height of the workbench 6, so that the sliding part 1 cannot interfere with the milling cutter shaft 8 in the moving process.
Further, the circular plate 21 is disposed parallel to the plate 11, and the side of the circular plate 21 near the guide plate 7 protrudes beyond the edge of the plate 11, and the portion of the circular plate 21 protruding beyond the edge of the plate 11 can contact with the guide plate 7 when rotating around the rotation point of the plate 11, and the diameter of the circular plate 21 is designed such that the path of the circular plate 21 when rotating around the rotation point of the plate 11 covers more than half the area of the milling shaft 8. The processing width of the common wood processing workpiece 9 is generally between 1 cm and 20cm, and the guide plate 7 is also generally pushed forward for use when in use, so that the processing workpiece 9 is positioned at the center of the workbench 6 as much as possible, and therefore, the problem that the milling cutter shaft 8 is exposed on the processing side can be avoided when the workpiece 9 is processed as long as the rotating path of the circular plate 21 is ensured to cover more than half of the area of the milling cutter shaft 8.
Preferably, the roller assemblies 12 comprise 4 groups, 2 roller assemblies 12 are respectively arranged on two sides of the supporting part 111 opposite to the milling cutter shaft 8, the roller assemblies 12 are designed to be far away from the milling cutter shaft 8 as far as possible, and when the position of the roller assemblies on the supporting part 111 is designed to be at least 1/3 of the width of the workbench 6 on one side of the guide plate 7 far away from the workbench 6, the rolling track of the roller assemblies 12 is not contacted with the milling cutter shaft 8, so that the use safety is ensured.
Further, the support portion 111 has a circular arc structure, is eccentrically connected to the center of the disk 21 by the first column 22, and is provided with a connecting sleeve between the disk 21 and the support portion 111. The support 111 is located below the disk 21 at one end close to the guide plate 7, and extends out of the disk 21 at one end far from the guide plate 7. The eccentric distance between the two is not excessively large, preferably between 1 cm and 3cm, so that the boundary of the workbench 6 is prevented from being drawn out too early by the center of the supporting part 111 when wide wood is processed, and the sliding part 1 is prevented from losing function.
Preferably, when the center of the supporting portion 111 reaches the boundary of the table 6, at least one roller assembly 12 is in contact with the table 6.
As a further preferred option, the working table 6 is provided with a milling cutter shaft fixing seat at one end far away from the guide plate 7, the upper surface of the milling cutter shaft fixing seat is flush with the upper surface of the working table 6, and the central track of the supporting part 111 passes through the upper surface of the milling cutter shaft fixing seat so as to enlarge the application range of the device.
Referring to fig. 5 and 6, in the present embodiment, the return of the sliding member 1 is performed by the cooperation of the natural return member 3 and the intelligent return member 4, so as to ensure the quick and safe return of the sliding member 1.
The natural return element 3 is arranged at the joint of the flat plate 11 and the workbench 6 and comprises a first mounting plate 31, a second upright post 32, a third upright post 33, a fourth upright post 34 and a torsion spring 35.
The first mounting plate 31 is mounted on the outer wall of the side of the table 6 remote from the guide plate 7, with its upper surface flush with the surface of the table 6.
The second upright 32 is connected to the first mounting plate 31 through the connection portion 112 of the flat plate 11, and the connection portion 112 of the flat plate 11 is connected to the second upright 32 and then parallel to the surface of the table 6.
The third upright post 33 is positioned on one side of the second upright post 32 close to the milling cutter shaft 8 and one side far away from the guide plate 7 and is arranged on the first mounting plate 31;
the fourth upright post 34 is positioned on one side of the second upright post 32 close to the milling cutter shaft 8 and is arranged on the flat plate 11;
the vertical distance between the fourth upright 34, the second upright 32 and the third upright 33 and the guide plate 7 increases gradually;
the first spring is a torsion spring 35, the middle part is sleeved on the second upright post 32, one end of the first spring is abutted against the inner side of the third upright post 33, and the other end of the first spring is abutted against the inner side of the fourth upright post 34;
a relief hole 1121 is provided in the plate 11 on the side close to the third pillar 33.
Thus, one end of the torsion spring 35 always abuts against the third stand column 33 whose position is unchanged, and the other end changes its position with the position change of the flat plate 11. In the initial state, the opening angle of the torsion spring 35 is the largest, the elastic force applied to the flat plate 11 is the smallest, the resistance to overcome is small when the wood workpiece pushes the rotating piece 2, in addition, due to the circular design of the circular plate 21, a worker can push the wood to push the rotating piece 2 out to extend above the milling cutter shaft 8 easily, and at the moment, when the worker fingers pass through the milling cutter shaft 8, the fingers are all located above the circular plate 21 and cannot contact with the milling cutter shaft 8. After the machining is finished, the workpiece leaves the position of the milling cutter shaft 8, the torsion spring pushes the fourth upright post 34, the flat plate 11 is pushed to move towards the guide plate direction, and the elastic force of the torsion spring on the flat plate 11 is gradually reduced along with the continuous increase of the opening angle of the torsion spring 35, so that the sliding piece 1 is close to the guide plate 7 from rapid to slow, and rapid collision of the circular plate 21 and the guide plate 7 is avoided.
Because the elasticity of the torsion spring 35 needs to be overcome when the workpiece 9 pushes the sliding piece 1 to move, the elasticity of the torsion spring 35 is not excessively large, and the sliding piece 1 can be pushed to return just so as to reduce the moving resistance of the workpiece 9.
In view of the resistance of the workpiece 9 during moving, the spring force of the torsion spring 35 is reduced, but a new problem is caused in that the return speed of the sliding member 1 is slow, and if the worker finishes processing the first member and takes the second member to the table, the sliding member 1 is not returned yet, and the open planer still threatens the worker. If the slide 1 is waited for to return completely, working time is wasted.
In view of this, the present application also specifically designs the intelligent return 4.
Referring to fig. 6 and 7, the intelligent return member 4 is arranged adjacent to the natural return member 3 and is positioned at the front end of the natural return member 3, and the moving stroke of the flat plate 11 is relatively small, so that the flat plate 11 can be conveniently controlled to return quickly.
The intelligent return 4 includes a second mounting plate 41, an electromagnet 42, a third mounting plate 43, and a buffer spring 44.
The electromagnet 42 is fixed on the outer side wall of the workbench 6 through the second mounting plate 41, and is positioned below the flat plate 11,
the third mounting plate 43 is an inverted L-shaped iron plate, the upper end of which is horizontally fixed to the flat plate 11 and is positioned at the front end of the relief hole 1121, the lower end of which is vertically oriented, a buffer spring 44 is fixed toward the electromagnet 42, and,
the third mounting plate 43 is located outside the table 6 when the circular plate 21 is located entirely above the milling shaft 8, at which point its distance from the electromagnet 42 is less than the free length of the buffer spring 44;
the buffer spring 44 abuts against the electromagnet 42 when the circular plate 21 is located entirely above the milling shaft 8.
Through the above design, before the sliding part 1 carries the rotating part 2 to collide with the guide plate 7, the sliding part will receive the reaction force from the buffer spring 44 to slow down the collision between the circular plate 21 and the guide plate 7, thereby prolonging the service life of the circular plate 21.
Considering the quick return and the safe collision of the sliding part 1, the elastic force of the torsion spring 35 is designed to be larger than that of the buffer spring 4, and the elastic force of the torsion spring 35 can push the flat plate 11 to rotate around the second upright post 32, so that the circular plate 21 is propped against the guide plate 7. The buffer spring 44 can quickly collide with the electromagnet 42 when the electromagnet 42 works, so that a reaction force is generated on the flat plate 11, and thus, when the circular plate 21 is about to collide with the guide plate 7, a buffer force is given to the flat plate 11, so that the force of the circular plate 21 colliding with the guide plate 7 is relieved, the power-on time of the buffer spring 44 and the electromagnet 42 is cooperatively designed, and the sliding piece 1 can quickly return and safely move to the guide plate 7. At the same time, the spring force of the torsion spring 35 is greater than the buffer spring 44, and when the slider 1 approaches the guide plate 7, the slider 1 is slowly leaned against the guide plate 7 against the reaction force.
The detecting element 5 will be described below with reference to fig. 8, where the detecting element 5 includes a fourth mounting plate 51 fixed on the outer sidewall of the table 6 at the front end of the rotation track of the flat plate 11, a vertical plate 52 is obliquely arranged on the fourth mounting plate, and a ranging sensor 53 is fixed on the vertical plate 52, and the ranging sensor 53 points to the junction between the milling cutter shaft 8 and the guide plate 7, and its height is greater than that of the circular plate 21. The detecting member 5 is used for acquiring the real-time distance between the detecting member and the processing part.
The control module is further included, and the control module obtains the signal transmitted by the detecting piece 5, compares the signal with a preset distance threshold value, and controls the electromagnet 42 to be started for a preset time and then stopped when the real-time distance is detected to be equal to the preset distance threshold value. When no workpiece 9 is detected above the milling cutter shaft 8 of the workbench 6, the system judges that the torsion spring 35 is slowly driving the sliding part 1 to return, and considering that the workpiece 9 to be processed is possibly placed on the workbench 6 at any time for processing, the sliding part 1 needs to be guaranteed to be quickly returned to the abutting guide plate 7 so as to seal the planing opening and prevent hurting people, therefore, the electromagnet 42 starts a preset time when the detecting part 5 detects that no workpiece 9 is detected above the milling cutter shaft 8 of the workbench 6, the preset time is 0-1s, and the electromagnet 42 is specifically determined according to the size of the workbench 6 and the size of the hand guard device, and in the preset time, the electromagnet 42 can attract an iron plate on the sliding part 1, and the iron plate drives the sliding part 1 to quickly move towards the guide plate 7, so that the sliding part 1 quickly returns under the combined action of the natural return part 3 and the intelligent return part 4 so as to shield the milling cutter shaft 8.
Further, the magnetic force of the electromagnet 42 is also based on the weight of the sliding member 1, so that the sliding member 1 can be pulled to rotate back for 1s to select the shape. Through the design of intelligent return piece 4, make slider 1 can quick return, then electro-magnet 42 outage, no matter work piece 9 is the back and forth pushing type processing on workstation 6, or place new work piece 9 processing, can both guarantee that work piece 9 reaches milling cutter shaft 8 position, slider 1 shields milling cutter shaft 8, and slider 1 receives the effect of the less torsional spring 35 of elasticity alone, makes work piece 9 can easily push away slider 1 and slide milling cutter shaft 8 top processing.
The utility model provides a pair of planer intelligence hand protector device changes traditional fixed protection mode, and the innovative design of an intelligent movable protection mode collects multiple characteristics in an organic whole of safety protection, quick return and resistance-free processing. Wherein, based on the safety protection, a sliding piece 1 with one end rotatably connected to one side of the workbench 6 far away from the guide plate 7 is adopted to shield the milling cutter shaft 8;
and quick return and resistance-free processing are the core invention points of the application.
Due to the fact that the naturally-returned sliding piece 1 is adopted to shield the milling cutter shaft 8, the milling cutter shaft 8 is completely shielded before the next processing action of the workpiece 9 is started, and the technical problem of the creative breakthrough of the application is solved.
Secondly, accelerating the natural return speed necessarily increases the work done by the workpiece 9 against the resistance of the sliding member 1, which is a technical problem two of the creative breakthrough of the present application.
Again, the sliding member 1 always presses the workpiece 9 under the action of the torsion spring 35, which inevitably generates corresponding resistance, and how to eliminate the resistance of the sliding member 1, so that the workpiece 9 can pass through the milling cutter shaft 8 without resistance or with low resistance, which is a technical problem three of the creative breakthrough in the application.
There is no technical solution of the present application in the prior art, nor is there any solution to the three problems described above. The cooperative design of the sliding part 1, the rotating part 2, the natural return part 3, the intelligent return part 4, the detecting part 5 and the control module perfectly solves the three technical problems, and achieves good use effect in practical application.
The following describes how the device solves the three technical problems by introducing the intelligent hand protection method of the planer.
The method comprises the following specific steps:
s1, starting a power supply of a planing machine, and starting a milling cutter shaft 8 and a control module to work;
s2, moving a workpiece 9 from one side of a natural return part 3 of the workbench 6 along a guide plate 7 to a milling cutter shaft 8;
s3, the workpiece 9 is abutted against the circular plate 21, the flat plate 11 and the circular plate 21 on the flat plate 11 are pushed to rotate around the second upright post 32 under the forward thrust action, the roller assembly 12 below the flat plate 11 moves along an arc line on the upper surface of the workbench 6 at a height higher than the milling cutter shaft 8, and meanwhile, the circular plate 21 freely rolls along the side surface of the workpiece 9, so that no resistance is generated to the workpiece 9;
meanwhile, as the workpiece 9 is always positioned above the milling cutter shaft 8, the real-time distance measured by the detection piece 5 is smaller than the preset distance threshold value, the electromagnet 42 does not work, the buffer spring 44 is far away from the workbench 6, the workpiece 9 can advance only by overcoming the elasticity of the torsion spring 35 on the natural return piece 3, and the workpiece 9 passes through the milling cutter shaft 8 with lower resistance;
s4, the workpiece 9 leaves the circular plate 21, at the moment, the workpiece 9 does not exist above the milling cutter shaft 8, the real-time distance measured by the detection piece 5 is equal to a preset distance threshold value, the electromagnet 42 is started for a preset time and then stopped, the electromagnet 42 attracts the iron block of the intelligent return piece 4 when being electrified within the preset time, so that the flat plate 11 is accelerated to return under the action of the electromagnet 42 and the action of the torsion spring 35, and meanwhile, the speed of the circular plate 21 approaching the guide plate 7 is slowed down when the buffer spring 44 is in collision with the electromagnet 42, so that the circular plate 21 is protected;
s5, the circular plate 21 is abutted against the guide plate 7 under the action of the electromagnet 42 and the action of the torsion spring 35, another workpiece 9 is taken and placed on the workbench 6, and the operation steps of S2-S4 are repeated;
s6, after all the workpieces 9 are machined, turning off the power supply of the planer.

Claims (10)

1. The intelligent hand protector device for the planer is arranged on one side, far away from a guide plate (7), of a workbench (6) of the planer and is characterized by comprising a sliding part (1), a rotating part (2), a natural return part (3), an intelligent return part (4), a detection part (5) and a control module;
the sliding piece (1) comprises a flat plate (11) and a roller assembly (12), one end of the flat plate (11) is rotatably connected to one side, far away from the guide plate (7), of the workbench (6), the other end of the flat plate is provided with the roller assembly (12), the roller assembly (12) comprises a roller (121), the roller (121) is rotatably connected with the flat plate (11), and the part, exposed out of the flat plate (11), of the lower part is higher than the milling cutter shaft (8) on the planer by the height higher than the workbench (6);
the milling cutter is characterized in that a rotating piece (2) is rotatably connected above the flat plate (11), the rotating piece (2) comprises a circular plate (21), the circular plate (21) is arranged parallel to the flat plate (11), one side of the circular plate (21) close to the guide plate (7) extends out of the edge of the flat plate (11), the edge part of the circular plate (21) extending out of the flat plate (11) can be contacted with the guide plate (7) when rotating around the rotating point of the flat plate (11), and the diameter of the circular plate (21) is designed to be that the path of the circular plate (21) when rotating around the rotating point of the flat plate (11) covers more than half of the area of the milling cutter shaft (8);
the natural return piece (3) is arranged at the joint of the flat plate (11) and the workbench (6) and comprises a first mounting plate (31) and a first spring arranged on the first mounting plate, the first mounting plate (31) is arranged on the outer wall of one side of the workbench (6) far away from the guide plate (7), and the first spring is used for pulling the sliding piece (1) to move towards the guide plate (7);
the intelligent return piece (4) is adjacently arranged with the natural return piece (3) and comprises an electromagnet (42), a second spring and an iron plate, wherein the electromagnet (42) is fixed below the flat plate (11), the upper end of the iron plate is fixed on the flat plate (11), the second spring is fixed at the lower end of the iron plate towards one side of the electromagnet (42), and,
the iron plate is positioned outside the workbench (6) when the circular plate (21) is positioned above the milling cutter shaft (8);
the second spring is propped against the electromagnet (42) when the circular plate (21) is all positioned above the milling cutter shaft (8);
the detection piece (5) is used for acquiring the real-time distance between the detection piece and the processing part;
the control module acquires a signal transmitted by the detection piece (5), compares the signal with a preset distance threshold, and controls the electromagnet (42) to be started for preset time and then stopped when the real-time distance is detected to be equal to the preset distance threshold.
2. The intelligent hand guard device of the planer according to claim 1, wherein the flat plate (11) comprises a connecting part (112) and a supporting part (111) which are connected in sequence;
one end of the connecting part (112) is rotationally connected with the first mounting plate (31), the other end of the connecting part is connected with the supporting part (111), a circular plate (21) is rotationally connected above the supporting part (111), and a plurality of roller assemblies (12) are arranged below the supporting part.
3. The intelligent hand guard device of the planer according to claim 2, wherein a hand holding portion (113) is further arranged on one side, away from the connecting portion (112), of the supporting portion (111), the length of the hand holding portion (113) is shorter than that of the connecting portion (112), and the hand holding portion (113) is inclined towards one side, away from the guide plate (7), of the center line of the connecting portion (112).
4. The intelligent hand guard device of the planer according to claim 2, wherein the roller assemblies (12) at least comprise 2 groups, at least one roller assembly (12) is respectively arranged on two sides of the supporting part (111) opposite to the milling cutter shaft (8), and when the position of the roller assembly (12) on the supporting part (111) is designed to be at least 1/3 of the width of the workbench (6) on one side of the guide plate (7) far away from the workbench (6), the rolling track of the roller assembly (12) is not contacted with the milling cutter shaft (8).
5. The intelligent hand guard device of the planer according to claim 2, wherein the supporting portion (111) is of a circular arc structure, is eccentrically connected with the center of the circular plate (21) through the first upright post (22), one end, close to the guide plate (7), is located below the circular plate (21), and one end, far away from the guide plate (7), is longer than the circular plate (21).
6. The intelligent hand guard device of a planer according to any one of claims 1-5, characterized in that the natural return (3) further comprises:
a second upright (32) passing through the flat plate (11) and connected to the first mounting plate (31);
the third upright post (33) is positioned on one side of the second upright post (32) close to the milling cutter shaft (8) and one side of the third upright post far away from the guide plate (7) is arranged on the first mounting plate (31);
the fourth upright post (34) is positioned on one side of the second upright post (32) close to the milling cutter shaft (8) and is arranged on the flat plate (11);
the vertical distances among the fourth upright (34), the second upright (32) and the third upright (33) and the guide plate (7) are gradually increased;
the first spring is a torsion spring (35), the middle part of the first spring is sleeved on the second upright (32), one end of the first spring is abutted against the inner side of the third upright (33), and the other end of the first spring is abutted against the inner side of the fourth upright (34);
and a yielding hole (1121) is formed in one side, close to the third upright post (33), of the flat plate (11).
7. The intelligent hand guard device of the planer according to claim 6, wherein the intelligent return piece (4) is located at the front end of the natural return piece (3), the electromagnet (42) is fixed on the outer side wall of the workbench (6) through the second mounting plate (41), and the iron plate is located at the front end of the yielding hole (1121).
8. The intelligent hand guard device of the planer according to claim 7, wherein the elastic force of the first spring is larger than that of the second spring, and the flat plate (11) can be pushed to rotate around the second upright post (32) by the elastic force of the first spring, so that the circular plate (21) is abutted against the guide plate (7).
9. The intelligent hand guard device for the planer according to claim 7 or 8, wherein the detecting piece (5) comprises a fourth mounting plate (51) which is fixed on the outer side wall of a workbench (6) at the front end of a rotating track of the flat plate (11), a vertical plate (52) is obliquely arranged on the workbench, a ranging sensor (53) is fixed on the vertical plate (52), and the ranging sensor (53) points to the junction of the milling cutter shaft (8) and the guide plate (7) and is higher than a circular plate (21).
10. An intelligent hand protecting method for a planer is characterized in that the intelligent hand protecting device for the planer is adopted, and comprises the following specific steps:
s1, starting a power supply of a planing machine, and starting a milling cutter shaft (8) and a control module to work;
s2, moving a workpiece (9) from one side of a natural return piece (3) of a workbench (6) along a guide plate (7) to a milling cutter shaft (8);
s3, the workpiece (9) is abutted against the circular plate (21), the flat plate (11) and the circular plate (21) on the flat plate are pushed to rotate around the second upright post (32) under the action of forward thrust, the roller assembly (12) below the flat plate (11) moves along an arc line on the upper surface of the workbench (6) at a height higher than that of the milling cutter shaft (8), and meanwhile, the circular plate (21) freely rolls along the side surface of the workpiece (9) and does not generate any resistance to the workpiece (9);
meanwhile, as the workpiece (9) is always positioned above the milling cutter shaft (8), the real-time distance measured by the detection piece (5) is smaller than a preset distance threshold, the electromagnet (42) does not work, the second spring is far away from the workbench (6), and the workpiece (9) can advance only by overcoming the elasticity of the first spring on the natural return piece (3);
s4, the workpiece (9) leaves the circular plate (21), at the moment, the workpiece (9) does not exist above the milling cutter shaft (8), the real-time distance measured by the detection piece (5) is equal to a preset distance threshold value, the electromagnet (42) is started for a preset time and then stopped, and in the preset time, the electromagnet (42) attracts an iron block of the intelligent return piece (4) when being electrified, so that the flat plate (11) accelerates and returns under the action of the electromagnet (42) and the action of the first spring, and meanwhile, the speed of the circular plate (21) approaching the guide plate (7) is slowed down when the second spring is in contact with the electromagnet (42) so as to protect the circular plate (21);
s5, abutting the circular plate (21) against the guide plate (7) under the action of the electromagnet (42) and the action of the first spring, taking another workpiece (9) and placing the workpiece on the workbench (6), and repeating the operation steps of S2-S4;
s6, after all the workpieces (9) are machined, turning off the power supply of the planer.
CN202310428745.7A 2023-04-20 2023-04-20 Intelligent hand guard device and method for planer Active CN116373041B (en)

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