CN216328866U

CN216328866U - Adjustable movable protective cover for woodworking circular saw

Info

Publication number: CN216328866U
Application number: CN202122490755.2U
Authority: CN
Inventors: 姜建斌; 程俊东
Original assignee: LAIZHOU FULIN MACHINERY CO Ltd
Current assignee: LAIZHOU FULIN MACHINERY CO Ltd
Priority date: 2021-10-16
Filing date: 2021-10-16
Publication date: 2022-04-19
Anticipated expiration: 2031-10-16

Abstract

The utility model discloses an adjustable movable protective cover for a woodworking circular saw, which is an independent structure independent of the woodworking circular saw, wherein a vertical support is vertically arranged in the middle of a base, a T-shaped pipe vertical part is inserted and matched with the upper part of the vertical support, two ends of a T-shaped pipe horizontal part are respectively connected with a protective cover support and a dust collection pipe, and the protective cover support is connected with the upper part of the protective cover through a four-bar mechanism; an air spring is arranged along a diagonal line of the four-bar mechanism; the protective cover is a cavity with an opening at the lower end and covers and surrounds the upper part and the periphery of the saw blade working part protruding out of the working table of the main machine; the dust collection opening protruded at the top of the protective cover is sequentially communicated with the hose, the protective cover bracket, the horizontal part of the T-shaped pipe and a dust collection pipe connected with the dust collection device. The utility model has simple structure, light weight and low manufacturing cost, the protective cover can be adjusted and moved, the operation is convenient, flexible and quick, the utility model can be matched with a small and medium-sized woodworking circular saw and can realize cutting, opening and slotting, and the utility model has the functions of safety protection, dust prevention and dust absorption and meets the requirements of environmental protection and safety production.

Description

Adjustable movable protective cover for woodworking circular saw

Technical Field

The utility model relates to the technical field of woodworking machinery, in particular to an adjustable movable protective cover for a woodworking circular saw.

Background

The existing small and medium-sized woodworking circular saw is provided with a saw blade in the middle of a main machine workbench; the simple protective cover is arranged right above the saw blade and is directly arranged on a knife protection plate behind the saw blade through a pin shaft, and the knife protection plate is fixedly arranged on a main machine workbench behind the saw blade. The defects are as follows:

the woodworking circular saw can only be used for timber to cut off because the existence of installing the knife protection board on the workstation and going up simple and easy guard shield makes the woodworking circular saw, can't realize ligneous opening and fluting, therefore has restricted the application range of circular saw, and the function is single, has reduced the utilization ratio of equipment.

In addition, the simple protective cover has lower safety protection performance and can not effectively prevent an operator from being injured by rotating a cutting saw blade, splashing wood chips and the like during cutting; moreover, the sealing and dust-proof effects are poor, powder generated during workpiece cutting floats into the surrounding environment, and wood dust splashes to the working table top and the ground outside the simple shield, so that the time and trouble for sanitary cleaning are caused, the health of an operator is influenced after a long time, and the requirements for environment-friendly and safe production are not met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an adjustable movable protective cover for a woodworking circular saw, which can overcome the defects, has the advantages of simple structure, light weight, low manufacturing cost, adjustable and movable protective cover, convenient, flexible and quick operation, is suitable for being matched with small and medium-sized woodworking circular saws with different specifications, integrates various processing functions of cutting, opening, slotting and the like, has better safety protection and dust prevention and dust absorption effects, and meets the requirements of environmental protection and safe production.

In order to solve the technical problem, the utility model adopts the following technical scheme:

an adjustable movable protective cover for woodworking circular saw is characterized in that,

the device is an independent structure independent of a woodworking circular saw, a vertical support is vertically arranged in the middle of a base, a vertical part matched with a T-shaped pipe is inserted into the upper part of the vertical support, two ends of a horizontal part of the T-shaped pipe are respectively connected with a protective cover support and a dust collection pipe, and the protective cover support is connected with the upper part of the protective cover through a four-bar mechanism capable of enabling the protective cover to move in parallel; an air spring which can make the shield still in a certain range is arranged along a diagonal line of the four-bar mechanism;

the protective cover is a cavity structure with an opening at the lower end and covers and surrounds the upper part and the periphery of the saw blade working part protruding out of the working table of the main machine; the top of the protective cover is convexly provided with a dust suction port, the dust suction port is sequentially communicated with the hose, the protective cover bracket, the horizontal part of the T-shaped pipe and the dust suction pipe, and the dust suction pipe is connected with a dust suction device;

the shield comprises a shield main body, a left side guard plate, a right side guard plate and a pair of rollers; wherein the shield main body is of an arc structure and is matched with the outer edge shape of the circular saw blade; the guard plates on the left side and the right side are made of transparent materials, are oppositely arranged on the left side and the right side of the saw blade and are connected to the lower part of the shield main body, one side guard plate is in a semicircular plane shape, and the other side plate is in a half-basin-shaped structure protruding outwards and is suitable for the cutting space range of the saw blade inclining outwards during cutting; the pair of rollers are symmetrically arranged at the front end and the rear end of the bottom of the shield, and the pair of rollers form rolling contact with the upper surface of a cutting material during cutting so that a cut object smoothly passes below the shield.

The thickness of the shield main body is larger than 3 mm, and the shield main body in an arc-shaped structure is made of ABS materials.

The left and right side guard plates are both thicker than 3 mm, and the transparent left and right side guard plates are made of polycarbonate materials; the left and right side guard plates are arranged at the mounting positions with the angle of inclination suitable for the left inclined saw blade or the right inclined saw blade interchangeable.

The central axes of the rollers are parallel, and the outer circumference surfaces of the lower ends of the rollers are slightly lower than the lower end surfaces of the left and right side guard plates; the distance between the pair of rollers and the working table of the main machine is adaptive to the thickness of the workpiece during cutting.

The four-bar mechanism comprises two connecting rods arranged in parallel, connecting rod seats respectively arranged at the upper parts of the shield support and the shield, and a plurality of pin shafts for forming rotary connection between the two connecting rods and the two connecting rod seats; one end of a gas spring arranged along a diagonal of the four-bar mechanism is rotatably connected with one end of an upper connecting rod close to the shield through a pin shaft, and the other end of the gas spring is rotatably connected with one end of a lower connecting rod close to the shield support through another pin shaft.

And an alignment label for confirming the lifting adjustment in place is arranged on one side of the vertical part of the T-shaped pipe close to the auxiliary table of the main machine.

The vertical part of the T-shaped pipe is provided with a locking hose clamp A which is used for locking the position of the T-shaped pipe after the T-shaped pipe is lifted and adjusted in place on the upper part of the vertical support; the horizontal part of the T-shaped pipe is provided with a locking hose clamp B which is used for locking the horizontal part of the T-shaped pipe and the position of the shield support after the adjusting shield is aligned with the saw blade.

The vertical part of the T-shaped pipe is provided with a U-shaped clamp and a fixed block connected with the U-shaped clamp; after the alignment label that is provided with on the vertical part of T venturi tube aligns with the host computer vice platform, the fixed block is connected with the host computer vice platform.

The base is ┤ shape structure, is provided with three support footing, three adjustment handle and three removal universal wheel at the three overhanging end of base and is the triangle, and three adjustment handle corresponds the setting from top to bottom with three support footing and is connected with the base with the screw thread.

The main machine workbench is arranged on the main machine, and a main machine auxiliary platform and a main machine rear auxiliary platform are respectively and horizontally arranged on the left side and the rear side of the main machine workbench; the main machine auxiliary table surface, the main machine rear auxiliary table surface and the main machine working table surface are positioned on the same plane; an opening is arranged in the middle of the main machine workbench and corresponds to the saw blade arranged on the main machine, a lifting handle used for lifting the saw blade is arranged on the front side of the main machine, and an angle adjusting handle used for adjusting the inclination angle of the saw blade is arranged on the right side of the main machine.

Compared with the prior art, the utility model has the following beneficial effects:

the multifunctional adjustable dust-collecting device has the advantages of simple and reasonable structure, light weight, low manufacturing cost, adjustable and movable shield, convenient, flexible and quick operation, labor saving, labor intensity reduction, work efficiency improvement, multiple functions, expanded use range of equipment, improved utilization rate of the equipment, capability of providing higher safety protection effect for operators, better dust-collecting and dust-preventing effect and capability of meeting the requirements of environment-friendly and safe production, and is suitable for small and medium-sized woodworking circular saws with different specifications and capable of meeting various processing requirements such as cutting, opening, slotting and the like.

Drawings

FIG. 1 is a perspective view of an adjustable movable guard for a woodworking circular saw;

fig. 2 is a schematic view of the structure of the shield of fig. 1.

Description of the components in fig. 1-2:

1. a host; 2. a host machine workbench; 3. a main machine secondary station; 4. a main machine rear auxiliary platform; 5. a saw blade; 6. lifting the handle; 7. an angle adjusting handle; 8. a base; 9. supporting feet; 10. moving the universal wheel; 11. adjusting the handle; 12. standing and supporting; 13. locking the hose clamp A; 14. a fixed block; a U-shaped clip; a T-shaped tube; 17. aligning the labels; 18. a shield support; 19. locking the hose clamp B; 20. a dust collection pipe; 21. a four-bar mechanism; 22. a gas spring; 23. a hose; 24. a shield; 241. a shield body; 242. a right guard plate; 243. a left guard plate; 244. a roller; 245. a dust suction port.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific embodiments.

As shown in fig. 1-2, the adjustable and movable guard shield of the woodworking circular saw is an independent structure independent of the woodworking circular saw, can be adjusted and moved, can be used with middle and small woodworking circular saws with different specifications, and can meet various processing requirements such as cutting off, opening and grooving of cutting materials.

The base 8 is ┤ shape structure, is the triangle at the three overhanging end of base 8 and is provided with three removal universal wheel 10, three supporting footing 9 and three adjustment handle 11, and three adjustment handle is used for adjusting the height that corresponds the three supporting footing that sets up from top to bottom, and three supporting footing 9 is used for supporting the removal guard shield and levels through three adjustment handle. The three moving universal wheels 10 make it extremely convenient and fast to move the base, and the shield needs to be moved to a proper position before installation.

The tee 16 is connected between the vertical stay 12 and the shield support 18, and the tee 16 includes a vertical portion and a horizontal portion vertically connected into an integral structure.

The vertical support 12 is vertically arranged in the middle of the base 8, the vertical part matched with the T-shaped pipe is vertically inserted into the upper part of the vertical support, and the purpose of flexibly adjusting the height of the shield according to the height of the working table of the host machine can be realized through the lifting adjustment of the vertical part of the T-shaped pipe in the vertical support 12. The main machine auxiliary table surface and the main machine rear auxiliary table are both positioned on the same plane with the main machine working table surface.

An alignment label 17 for confirming the lifting adjustment in place is arranged on one side of the vertical part of the T-shaped pipe close to the main machine auxiliary table 3; when the alignment mark 17 is aligned with the auxiliary table of the main machine, it shows that the vertical part of the T-shaped pipe is adjusted in position by lifting on the upper part of the vertical support.

And a locking hose clamp A13 for locking the position of the vertical part of the T-shaped pipe after the whole height adjustment is finished is also arranged on the upper part of the vertical support. And a U-shaped clamp 15 and a fixed block 14 connected with the U-shaped clamp are further arranged at the vertical part of the T-shaped pipe, and the fixed block 14 is fixedly connected with the main machine auxiliary table 3 to improve the overall stability.

The specific operation steps are that the vertical part of the T-shaped pipe can move up and down and be adjusted in the inner cavity of the upper part of the vertical support, when the alignment label 17 is aligned with the table top of the main machine auxiliary table, the vertical part of the T-shaped pipe is locked by the locking throat hoop A13, and then the vertical part of the T-shaped pipe is fixed on one side of the main machine auxiliary table by the fixing block 14 and the U-shaped clamp 15 connected with the fixing block 14.

The tail end of the horizontal part of the T-shaped pipe is communicated with a dust suction pipe 20, the dust suction pipe 20 is connected with a dust suction device arranged at the rear side of the main machine, the other end of the dust suction pipe 20 is horizontally inserted into one end of the shield support 18, and a locking hose clamp B19 used for locking the positions of the horizontal part of the T-shaped pipe and the shield support after the adjusting shield 24 is aligned with the saw blade 5 is arranged. The shield support 18 is used for supporting and installing the shield 24, the shield 24 covers and surrounds the upper part and the periphery of the saw blade working part protruding out of the working table surface of the main machine, saw dust, dust and the like which are generated during cutting and splashed outwards can be blocked in the shield, and the saw dust, the dust and the like are timely cleaned away through a dust suction channel communicated with a dust suction device, so that the pollution to the environment is effectively prevented, and the personal safety of an operator is ensured.

A dust suction port 245 is convexly arranged at the top end of the protective cover 24, one end of a hose 23 is communicated with the dust suction port 245, and the other end of the hose 23 is sequentially communicated with the protective cover bracket 18, the horizontal part of the T-shaped pipe and the dust suction pipe 20; the upper part of the shield is connected to the shield support 18 by means of a four-bar linkage 21 and a gas spring 22.

As shown in fig. 1, the four-bar mechanism 21 includes two connecting rods arranged in parallel, a connecting rod seat respectively installed at the upper portions of the shield support 18 and the shield 24, and a plurality of pin shafts for forming a rotational connection between the two connecting rods and the two connecting rod seats, and a gas spring 22 is arranged along a diagonal line of the four-bar mechanism 21; one end of the gas spring 22 is rotatably connected to one end of the upper link adjacent to the shield 24 by a pin, and the other end thereof is rotatably connected to one end of the lower link adjacent to the shield support 18 by another pin.

The four-bar mechanism 21 is used for enabling the shield 24 to move in parallel to realize the height adjustment of the shield; after being adjusted to the proper position, the position is locked by the gas spring 22. The gas spring 22 is used to counterbalance the weight of the guard, allowing the guard 24 to be stationary within a certain range, particularly when adjusted to a proper position above the saw blade 5, to be held in place and not fall under its own weight.

As shown in fig. 2, the hood 24 includes a hood main body 241, a left guard 243, a right guard 242, a pair of rollers 244, and a dust suction port 245; the main body 241 of the protecting cover is of a convex arc structure and is matched with the outer edge of the circular saw blade 5, and a dust suction port 245 communicated with the hose 23 is convexly arranged at the top of the main body 241 of the protecting cover. The left guard plate 243 and the right guard plate 242 are made of transparent material, and are disposed on the left and right sides of the saw blade 5 and connected to the lower portion of the guard main body 241, wherein one side guard plate is in a semicircular plane shape, and the other side guard plate is in a half-basin-shaped structure protruding outwards, and is adapted to the cutting space range of the saw blade inclining outwards during cutting. The pair of rollers 244 are symmetrically arranged at the front end and the rear end of the bottom of the shield, and can form rolling contact with the upper surface of a cutting material during cutting, so that the rolling contact friction force is small, cut objects can conveniently and smoothly pass through the lower part of the shield, the labor can be saved, the labor intensity is reduced, and the working efficiency is correspondingly improved.

In addition, the height of the protective cover 24 and the distance between the protective cover and the workpiece table top of the woodworking circular saw main machine can be flexibly adjusted according to the thickness of a cutting workpiece and the specific cutting height, and the adjustment comprises the vertical position adjustment and the left-right position adjustment which are respectively matched with the vertical support 12 and the protective cover support 18 through the vertical part and the horizontal part of the T-shaped pipe 16 before installation, the leveling which is carried out by matching the three adjusting handles 11 with the three support feet 9, and the protective cover height position adjustment which is carried out by an adjusting and positioning mechanism consisting of a four-bar mechanism and a gas spring during cutting; the adjustable movable shield has the advantages of simple structure, light weight, convenient and quick adjustment for operators, and accurate, stable and reliable positioning.

The shield body 241 is of an arc-shaped structure and made of an ABS material. The left and right

side guard plates

243 and 242 are made of polycarbonate material, and the left and right side guard plates are made of transparent material so as to facilitate visual and clear observation of the cutting condition of the saw blade and facilitate timely adjustment of the relative position between the guard and the saw blade. The mounting positions of the left and right side guard plates can be interchanged so as to adapt to the inclination angle of the left inclined saw blade or the right inclined saw blade. The thickness of the shield main body 241 and the left and right

side guard plates

243 and 242 is larger than 3 mm, so that a good protection effect can be achieved.

The central axes of the rollers 244 are parallel, and the outer circumference surfaces of the lower ends of the rollers are slightly lower than the lower end surfaces of the left and right side guard plates; the distance between the pair of rollers 244 and the table of the main machine is adapted to the thickness of the workpiece during cutting.

A main machine workbench 2 is arranged on the main machine 1, and a main machine auxiliary platform 3 and a main machine rear auxiliary platform 4 are respectively and horizontally arranged on the left side and the rear side of the main machine workbench 2; the main machine auxiliary table surface, the main machine rear auxiliary table surface and the main machine working table surface are positioned on the same plane. An opening is arranged in the middle of the main machine workbench 2 and corresponds to a saw blade 5 arranged on the main machine, and a lifting handle 6 and an angle adjusting handle 7 are respectively arranged on the front side and the right side of the main machine. The lifting handle 6 can lift the saw blade under the working table and make the working part of the saw blade protrude above the working table of the main machine. The angle of inclination of the saw blade 5 can be adjusted by the angle adjusting handle 7, so that workpieces with different angles can be cut.

The working process of the utility model is as follows: reference is made to fig. 1-2.

Firstly, the shield 24 is moved to the left position of the main machine auxiliary table 3 through the supporting feet 9 and the movable universal wheels 10 below the base 8;

adjusting the supporting feet 9 by adjusting the handle 11 to enable the horizontal part of the T-shaped pipe to be parallel to the surface of the working table of the host machine, and finishing leveling;

then, the height of the vertical part of the T-shaped pipe is adjusted, and the alignment label 17 arranged on the inner side of the T-shaped pipe is flush with the auxiliary table surface of the host machine;

then the U-shaped clamp 15 is locked, and the fixed block 14 is fixedly connected with the main machine auxiliary table 3;

then aligning the centers of a pair of rollers at the bottom of the shield with the saw blade 5, and locking a locking throat hoop B19 to realize the position locking of the shield support 18 and the horizontal part of the T-shaped pipe;

then, a dust suction pipe 20 is inserted into the rear portion of the horizontal portion of the T-shaped pipe, and the dust suction pipe 20 is connected to a dust suction device located at the rear side of the main body.

By this time the shield installation is complete.

Starting the machine, pushing the workpiece to move forward along the material guide plate, and cutting the workpiece; and the material guide plate is locked to meet the requirements of different cutting widths of the workpiece. According to different cutting thickness and angle requirements of the workpiece, the height and the inclination angle of the saw blade 5 can be flexibly adjusted through the lifting handle 6 and the angle adjusting handle 7.

When in cutting, the height of the protective cover is correspondingly adjusted by parallelly moving the protective cover through the four-bar mechanism 21 according to the thickness of a workpiece and different cutting heights; when adjusted in position, is locked in position by gas spring 22. During cutting, the pair of rollers 244 at the bottom of the shroud can roll along the upper surface of the material being cut and form a rolling contact with a low friction force, facilitating the cut material to pass smoothly under the shroud.

The sawdust, the dust and the dust generated during cutting are covered by the protective cover 24, sequentially pass through the dust suction port at the top of the protective cover, the hose 23, the protective cover support 18, the horizontal part of the T-shaped pipe and the dust suction pipe 20 which are communicated with each other, and are finally sucked away by the dust suction device, so that the working table surface and the ground are kept clean, the environment-friendly production environment requirement is met, and the body health of an operator is guaranteed.

Claims

1. An adjustable movable protective cover for woodworking circular saw is characterized in that,

2. The adjustable portable guard of claim 1, wherein the thickness of the guard body is greater than 3 mm, and the guard body having an arc structure is made of ABS material.

3. The adjustable portable guard of claim 2, wherein the left and right guard plates are thicker than 3 mm, and the transparent left and right guard plates are made of polycarbonate material; the left and right side guard plates are arranged at the mounting positions with the angle of inclination suitable for the left inclined saw blade or the right inclined saw blade interchangeable.

4. The adjustable portable guard for a woodworking circular saw as claimed in claim 3, wherein the central axes of the rollers are parallel, and the outer circumferences of the lower ends of the rollers are slightly lower than the lower end surfaces of the guard plates on the left and right sides; the distance between the pair of rollers and the working table of the main machine is adaptive to the thickness of the workpiece during cutting.

5. The adjustable portable guard for woodworking circular saws as claimed in claim 4, wherein said four-bar mechanism comprises two connecting bars arranged in parallel, a connecting bar base mounted on the upper portion of the guard support and the guard, respectively, and a plurality of pins for forming a rotational connection between the two connecting bars and the two connecting bar bases; one end of a gas spring arranged along a diagonal of the four-bar mechanism is rotatably connected with one end of an upper connecting rod close to the shield through a pin shaft, and the other end of the gas spring is rotatably connected with one end of a lower connecting rod close to the shield support through another pin shaft.

6. The adjustable portable guard for a woodworking circular saw as claimed in any one of claims 1 to 5, wherein an alignment mark for confirming the lifting adjustment is provided on a side of the vertical portion of the T-shaped pipe close to the auxiliary table of the main machine.

7. The adjustable portable guard for woodworking circular saws as claimed in claim 6, wherein the vertical part of the T-shaped pipe is provided with a locking throat hoop A for locking the position of the T-shaped pipe after the T-shaped pipe is lifted and lowered on the upper part of the vertical support; the horizontal part of the T-shaped pipe is provided with a locking hose clamp B which is used for locking the horizontal part of the T-shaped pipe and the position of the shield support after the adjusting shield is aligned with the saw blade.

8. The adjustable portable guard for woodworking circular saws as claimed in claim 7, wherein the vertical portion of the T-shaped pipe is provided with a U-shaped clamp and a fixing block connected with the U-shaped clamp; after the alignment label that is provided with on the vertical part of T-shaped pipe aligns with the vice platform of host computer, the fixed block can be connected with the vice platform of host computer.

9. The adjustable portable guard for woodworking circular saw as claimed in claim 8, wherein the base is ┤ -shaped, three supporting feet, three adjusting handles and three moving universal wheels are triangularly arranged at three outward extending ends of the base, and the three adjusting handles and the three supporting feet are correspondingly arranged up and down and are connected with the base through threads.

10. The adjustable mobile protective cover for woodworking circular saw as claimed in claim 9, wherein the main machine workbench is arranged on the main machine, and a main machine auxiliary platform and a main machine rear auxiliary platform are respectively horizontally arranged on the left side and the rear side of the main machine workbench; the main machine auxiliary table surface, the main machine rear auxiliary table surface and the main machine working table surface are positioned on the same plane; an opening is arranged in the middle of the main machine workbench and corresponds to the saw blade arranged on the main machine, a lifting handle used for lifting the saw blade is arranged on the front side of the main machine, and an angle adjusting handle used for adjusting the inclination angle of the saw blade is arranged on the right side of the main machine.