CN103962640B - Safety protection mechanism for band-sawing machine - Google Patents
Safety protection mechanism for band-sawing machine Download PDFInfo
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- CN103962640B CN103962640B CN201310032244.3A CN201310032244A CN103962640B CN 103962640 B CN103962640 B CN 103962640B CN 201310032244 A CN201310032244 A CN 201310032244A CN 103962640 B CN103962640 B CN 103962640B
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- seat
- relay
- protection mechanism
- lifting seat
- sawing machine
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Abstract
The invention relates to a safety protection mechanism for a band-sawing machine. The band-sawing machine comprises a driving wheel, a driven wheel, a saw band encircled the driving wheel and the driven wheel, and a motor connected with the driving wheel. The safety protection mechanism for the band-sawing machine is characterized in that the safety protection mechanism comprises a relay, a tensioning device and a pressure plate, wherein the relay used for controlling action of the motor is electrically connected with the relay; the tensioning device is provided with a lifting base; the lifting base is connected with the driven wheel and the tension of the saw band is adjusted through the driven wheel; the pressure plate is connected with the lifting base of the tensioning device and positioned above the relay, so that the pressure plate can be away from or press the relay based on the lifting or descending of the lifting base to start or shut down the relay. According to the safety protection mechanism for the band-sawing machine, as the relay can be started or shut down through the lifting or descending of the lifting base through the pressure plate, the action of the motor can be controlled by the relay and the safety of a user is protected.
Description
Technical field
The present invention is relevant with band sawing machine, particularly relates to a kind of safety protection mechanism of band sawing machine.
Background technology
Before operation band sawing machine carries out Cutting indexes to workpiece, operator have to first arrive the tension adjustment of saw band
Appropriate tightness, to maintain stability during sawing, when changing saw band, after operator then loosen saw band,
Saw band could smoothly be pulled down.
But for operator, can only judge whether saw band is adjusted to visual or feel at present tight
State, just in case when in the case that saw band is not yet tightened with regard to starter motor, it will operator are caused with quite serious injury.
Therefore, current band sawing machine cannot provide good processing safety.
The content of the invention
For the problems referred to above, present invention is primarily targeted at providing a kind of safety protection mechanism of band sawing machine, it can have
Effect lifting operation safety.
To reach above-mentioned purpose, a kind of safety protection mechanism of band sawing machine provided by the present invention, the band sawing machine is included
There are a drivewheel, a driven pulley, the saw band of drivewheel and the driven pulley described in a winding, and one connects the drivewheel
Motor, it is characterised in that the safety protection mechanism includes：One relay, electrically connects the motor, for controlling the horse
The action for reaching；One tension adjusting device, with a lifting seat, the lifting seat connects the driven pulley, with by described driven
The tension force of the wheel adjustment saw band；One pressing plate, connects the lifting seat of the tension adjusting device and positioned at the upper of the relay
Side so that the pressing plate can by the lifting of the lifting seat away from or compress the relay, it is described to start or close
Relay.
In the technical scheme of the invention described above, the relay has a wheel trolley, when the pressing plate leaves the wheel trolley
The relay can be started, the motor is started, the relay can be closed when the pressing plate compresses the wheel trolley,
The motor is set to start.
The tension adjusting device also has a fixed seat and a control assembly, and the lifting seat has two relative axles
Bar, top board, the base plate connected for the pressing plate, and a wheel seat connected for the driven pulley, the two axostylus axostyles energy axle
To the fixed seat is movably arranged in, the top board and the base plate are connected to the top of two axostylus axostyle, bottom two ends, institute
Wheel seat is stated located at two axostylus axostyle and between the top board and the base plate, the control assembly has leader and convex
Wheel block, the cam bit connects the handle and with a large-diameter portion and minor diameter part so that the cam bit can pass through described
The driving of handle and between a packing position and an off-position relative to the lifting seat rotate, when the cam bit be located at institute
When stating packing position, the top board of lifting seat described in the large-diameter portion pushing and withstanding of the cam bit, when the cam bit is located at the release
During position, the minor diameter part of the cam bit is connected to the top board of the lifting seat.
The control assembly has a stop part, and the stop part is fixed on the cam bit and protrudes from the cam bit
Surface, to abut the top board of the lifting seat.
The minor diameter part of the cam bit has one against plane, described when the cam bit is located at the off-position
Cam bit against plane for the lifting seat top board against.
The tension adjusting device also have a trimming assembly, the trimming assembly have a supporting plate, a helical spring, one
Nut, and an adjusting lever, the supporting plate is between two axostylus axostyle of the lifting seat and positioned at the wheel seat and described
Between base plate, between the wheel seat and the supporting plate of the lifting seat, the nut is fixed on the liter to the helical spring
The base plate of drop seat, the adjusting lever can rotationally be arranged in the base plate and the supporting plate of the lifting seat, and be stretched with its one end
Enter in the helical spring, the adjusting lever has a threaded portion, and for spiral shell the nut is set.
The trimming assembly also has two spacing rings, and two spacing ring is individually fixed in two axle of the lifting seat
Bar and between the top board and the wheel seat.
The trimming assembly also has a runner, and the runner is fixed on one end of the adjusting lever, described for driving
Adjusting lever is rotated.
One end that the tension adjusting device also has a tension force pointer, the tension force pointer has a chute, the support
Plate has a protruding shaft, and the protruding shaft can be slippingly inserted in the chute of the tension force pointer.
The trimming assembly also has a thrust bearing, and the thrust bearing is sheathed on the adjusting lever and is connected to described
The bottom surface of supporting plate.
Using above-mentioned technical proposal, the safety protection mechanism of the present invention may insure that motor only will in tension adjusting device
The tension adjustment of saw band is so just avoided that unexpected generation and reaches lifting operation peace to being activated in the state of tight
The purpose of full property.
Description of the drawings
Fig. 1 is the axonometric chart of the band sawing machine of a preferred embodiment of the present invention；
Fig. 2 is the axonometric chart of the tension adjusting device that a preferred embodiment of the present invention is provided；
Fig. 3 is the plane graph of a preferred embodiment of the present invention, the main state for showing pressing plate away from relay；
Fig. 4 is the plane graph of a preferred embodiment of the present invention, main to show the state that pressing plate compresses relay；
Fig. 5 is the plane graph of a preferred embodiment of the present invention, the main state shown after tension adjusting device height-fine adjustment.
Specific embodiment
Now lift following examples and combine accompanying drawing and the structure and effect of the present invention are described in detail.
As shown in figure 1, be the band sawing machine 10 using the safety protection mechanism 20 of a preferred embodiment of the present invention, shown in figure
Band sawing machine 10 consist predominantly of pedestal 11 on, once driven pulley 13, of the pedestal 12, in the upper pedestal 11 be located at down
Drivewheel 14, one in pedestal 12 is set around the saw band 15 of drivewheel 14 and driven pulley 13, and one is located at lower pedestal 12 and connects
Connect the motor 16 of drivewheel 14.Please coordinate with reference to Fig. 2 and Fig. 3, the safety protection mechanism 20 of the present invention has a relay 30,
Tension adjusting device 40, and a pressing plate 60.
Relay 30 is fixed in pedestal 11 and electrically connects motor 16, for controlling the action of motor 16.Work as relay
When 30 wheel trolley 32 is not pressed, relay 30 can be presented opening and can export an electric current to motor 16, make motor
16 can be activated, and when the wheel trolley 32 of relay 30 is by pressed by external force, relay 30 can be presented closed mode and interrupt output
To the electric current of motor 16, motor 16 is set to be activated.
Tension adjusting device 40 has a fixed seat 41, a lifting seat 42, a control assembly 43, a trimming assembly 44, with
And a tension force pointer 45, wherein：
Fixed seat 41 is fixed on pedestal 11 and with one first fixed block 412 and 2 second fixed blocks 414, and two second consolidate
Determine block 414 relatively to lock in the two sides of the first fixed block 412.
Lifting seat 42 has two relative axostylus axostyles 421, a top board 422, a base plate 423, a wheel seat 424, wherein：Two axostylus axostyles
421 the first fixed blocks 412 for being arranged in fixed seat 41 and can move up and down along the axially opposing fixed seat 41 of itself；Top board
422 and base plate 423 be connected to the top of two axostylus axostyles 421, bottom two ends so that top board 422 and base plate 423 can be with two axostylus axostyles
421 movements；Wheel seat 424 is arranged and is fixed on two axostylus axostyles 421 and between top board 422 and base plate 423, is pivoted for driven pulley 13.
Thus, lifting seat 42 can be relatively fixed seat 41 and rise or fall by the synchronous drive driven pulley 13 of wheel seat 424.Additionally, lifting
Seat 42 has two spacing rings 425, and each spacing ring 425 is fixed on axostylus axostyle 421 and between top board 422 and wheel seat 424, for hindering
The upper shifting of gear wheel seat 424.
Control assembly 43 has the cam bit 47 of leader 46 and, and cam bit 47 is arranged the rotating shaft for being fixed on handle 46
462 so that cam bit 47 can OQ t seat 42 be rotated by the driving of handle 46.Cam bit 47 has a large-diameter portion
472 and a minor diameter part 474, as shown in Figure 3 to Figure 4, minor diameter part therein 474 has one against plane 476, additionally, cam bit
47 are provided with a stop part 48, and stop part 48 protrudes from the surface of cam bit 47, as shown in figure 3, the top for abutting lifting seat 42
Plate 422 and provide locating effect.
Trimming assembly 44 has a supporting plate 50, a helical spring 51, a nut 52, an adjusting lever 53, a thrust bearing 54,
And a runner 55.Supporting plate 50 is folded between two axostylus axostyles 421 of lifting seat 42 and between wheel seat 424 and base plate 423；Spiral shell
Rotation spring 51 is located between supporting plate 50 and the wheel seat 424 of lifting seat 42；Nut 52 is fixed on the base plate 423 of lifting seat 42；Adjustment
Bar 53 is rotationally arranged in the base plate 423 of supporting plate 50 and lifting seat 42, and is stretched in helical spring 51 with its one end, adjustment
Bar 53 has a threaded portion 532, and for spiral shell nut 52 is set.Thrust bearing 54 is sheathed on adjusting lever 53 and is connected to the bottom of supporting plate 50
Face；Runner 55 is fixed on one end of adjusting lever 53 and exposes to outside pedestal 11, for driving adjusting lever 53 to rotate.
Tension force pointer 45 is hubbed at pedestal 11 and has a chute 452 with its one end, for a protruding shaft 56 of supporting plate 50
In being slippingly plugged in so that tension force pointer 45 can produce pivot with moving up and down for supporting plate 50, for unification
Sight scale division (not shown) is indicating the elasticity of current saw band 15.
Pressing plate 60 connects the top board 422 of lifting seat 42 and positioned at the top of relay 30 with its one end so that the energy of pressing plate 60
The wheel trolley 32 of relay 30 is left or compressed with its other end by the lifting of lifting seat 42.
When to loosen saw band 15, first down pulling handle 46 and cam bit 47 is turned to into an off-position P1, such as
Shown in Fig. 4, lifting seat 42 now can be because weight itself drops to the minor diameter part 474 for allowing top board 422 to be resisted against cam bit 47
Against plane 476 so that driven pulley 13 the distance between can shorten with drivewheel 14 with the decline of wheel seat 424, while
Pressing plate 60 also can compress the wheel trolley 32 of relay 30 with the decline of top board 422, motor 16 is activated, and such one
Come, lax state will be presented for saw band 15 and motor 16 can also be presented off-position, with sharp operator safety situation
Under carry out the dismounting of saw band 15.
On the contrary, being then up to pull handle 46 when to install saw band 15, cam bit 47 is set to turn to a packing position
P2 is put, as shown in figure 3, stop part 48 now can be connected to the top board 422 of lifting seat 42 to complete the positioning of cam bit 47, this
When lifting seat 42 can be subject to cam bit 47 large-diameter portion 472 pushing and withstanding and upper lift, during lifting on the lifting seat 42 except
Outside driving driven pulley 13 away from drivewheel 14 by the way that wheel seat 424 is synchronous, while can also pass through the Timing Belt dynamic pressure plate 60 of top board 422
Away from relay 30, in the case, saw band 15 can be presented by the support of driven pulley 13 state tightened and motor 16 once again by
Start, can so drive saw band 15 to carry out sawing operation.
In addition, in order to by the tension adjustment of saw band 15 to appropriate elasticity, operator can pass through runner 55
Drive adjusting lever 53 to rotate, because nut 52 is maintained static, adjusting lever 53 can up be moved along the axial direction of itself, and moving
Supporting plate 50 is up promoted by thrust bearing 54 in dynamic process, then the meeting extrusion spiral of supporting plate 50 spring 51, extruded spiral shell
Rotation spring 51 understands again up pushing and withstanding wheel seat 424, driven pulley 13 is up moved, as shown in figure 5, wheel seat 424 now can be subject to
The stop of two spacing rings 425 and microdisplacement can only be produced, with reach fine setting elasticity effect.
In sum, safety protection mechanism 20 of the invention may insure that motor 16 only will be sawed in tension adjusting device 40
With 15 tension adjustment to being activated in the state of tight, so just it is avoided that unexpected generation and reaches lifting operation peace
The purpose of full property.Supplementary notes are additionally needed, tension adjusting device 40 is not limited to above-mentioned mentioned structure design, real
As long as the effect of the adjustment tension force of saw band 15 is can reach on border with the lifting seat 42 that driven pulley 13 can be driven to lift.
Finally, the disclosed in the aforementioned embodiment composed component of the present invention, by way of example only, not for limiting this
The scope of patent protection of case, the replacement of other equivalence elements or change, also should be covered by the scope of patent protection of this case.
Claims (9)
1. a kind of safety protection mechanism of band sawing machine, the band sawing machine includes a drivewheel, a driven pulley, main described in a winding
The saw band of driving wheel and the driven pulley, and the motor of the connection drivewheel, it is characterised in that the safety protection mechanism
Include：
One relay, electrically connects the motor, for controlling the action of the motor；
One tension adjusting device, with a lifting seat, the lifting seat connects the driven pulley, to be adjusted by the driven pulley
The tension force of the saw band；
One pressing plate, connects the lifting seat of the tension adjusting device and positioned at the top of the relay so that the pressing plate energy
By the lifting of the lifting seat away from or compress the relay, to start or close the relay；
The tension adjusting device also has a fixed seat and a control assembly, the lifting seat have two relative axostylus axostyles, one
For top board, a base plate of pressing plate connection, and one for driven pulley connection wheel seat, two axostylus axostyle can move axially
Be arranged in the fixed seat, the top board and the base plate are connected to the top of two axostylus axostyle, bottom two ends, the wheel seat
Located at two axostylus axostyle and between the top board and the base plate, the control assembly has leader and a cam bit,
The cam bit connects the handle and with a large-diameter portion and minor diameter part so that the cam bit can pass through the handle
Drive and rotate relative to the lifting seat between a packing position and an off-position, when the cam bit is located at the packing
During position, the top board of lifting seat described in the large-diameter portion pushing and withstanding of the cam bit, when the cam bit is located at the off-position,
The minor diameter part of the cam bit is connected to the top board of the lifting seat.
2. the safety protection mechanism of band sawing machine as claimed in claim 1, it is characterised in that：The relay has a wheel trolley,
The relay can be started when the pressing plate leaves the wheel trolley, the motor is started, when the pressing plate compresses institute
The relay can be closed when stating wheel trolley, the motor is started.
3. the safety protection mechanism of band sawing machine as claimed in claim 1 or 2, it is characterised in that：The control assembly has one
Stop part, the stop part is fixed on the cam bit and protrudes from the surface of the cam bit, to abut the lifting seat
Top board.
4. the safety protection mechanism of band sawing machine as claimed in claim 1 or 2, it is characterised in that：The minor diameter part of the cam bit
With one against plane, when the cam bit is located at the off-position, the cam bit supplies the lifting against plane
Seat top board against.
5. the safety protection mechanism of band sawing machine as claimed in claim 1 or 2, it is characterised in that：The tension adjusting device is also
With a trimming assembly, the trimming assembly has a supporting plate, a helical spring, a nut, and an adjusting lever, the supporting plate
Between two axostylus axostyle of the lifting seat and between the wheel seat and the base plate, the helical spring is located at institute
State between the wheel seat and the supporting plate of lifting seat, the nut is fixed on the base plate of the lifting seat, the adjusting lever can be rotated
Be arranged in the base plate and the supporting plate of the lifting seat, and stretched in the helical spring with its one end, the adjusting lever
With a threaded portion, for spiral shell the nut is set.
6. the safety protection mechanism of band sawing machine as claimed in claim 5, it is characterised in that：The trimming assembly is also with two limits
Position ring, two spacing ring be individually fixed in two axostylus axostyle of the lifting seat and positioned at the top board and the wheel seat it
Between.
7. the safety protection mechanism of band sawing machine as claimed in claim 5, it is characterised in that：The trimming assembly also has one turn
Wheel, the runner is fixed on one end of the adjusting lever, for driving the adjusting lever to rotate.
8. the safety protection mechanism of band sawing machine as claimed in claim 5, it is characterised in that：The tension adjusting device also has
One tension force pointer, one end of the tension force pointer has a chute, and the supporting plate has a protruding shaft, and the protruding shaft can be inserted slippingly
In the chute of the tension force pointer.
9. the safety protection mechanism of band sawing machine as claimed in claim 5, it is characterised in that：The trimming assembly also has one to stop
Thrust bearing, the thrust bearing is sheathed on the adjusting lever and is connected to the bottom surface of the supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032244.3A CN103962640B (en) | 2013-01-28 | 2013-01-28 | Safety protection mechanism for band-sawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032244.3A CN103962640B (en) | 2013-01-28 | 2013-01-28 | Safety protection mechanism for band-sawing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103962640A CN103962640A (en) | 2014-08-06 |
| CN103962640B true CN103962640B (en) | 2017-05-03 |
Family
ID=51232910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310032244.3A Active CN103962640B (en) | 2013-01-28 | 2013-01-28 | Safety protection mechanism for band-sawing machine |
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| CN (1) | CN103962640B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422470A (en) * | 2017-02-15 | 2018-08-21 | 罗兰Dg有限公司 | Transaction machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193216Y (en) * | 1993-07-30 | 1995-03-29 | 顾关耀 | Metal band saw machine |
| TW200512055A (en) * | 2003-09-26 | 2005-04-01 | Way Train Ind Co Ltd | Band-saw machine tension measuring device |
| TW200821116A (en) * | 2006-11-09 | 2008-05-16 | Rexon Ind Corp Ltd | Table saw machine |
| CN201493537U (en) * | 2009-09-04 | 2010-06-02 | 广州精新泽自动化设备有限公司 | Electric tube cutting machine |
| CN202271419U (en) * | 2011-09-15 | 2012-06-13 | 青岛金岭电器有限公司 | Fast tensioning mechanism of saw blade of woodworking band-sawing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178222A (en) * | 2000-12-15 | 2002-06-25 | Hitachi Koki Co Ltd | Band saw tensioning device in horizontal band sawing machine |
| US7493842B2 (en) * | 2007-03-23 | 2009-02-24 | King Saw Machinery Ltd. | Band saw quickly changing device for a band saw machine |
| KR101072969B1 (en) * | 2009-04-22 | 2011-10-13 | 김경호 | Band sawing machine having change of speed control function |
-
2013
- 2013-01-28 CN CN201310032244.3A patent/CN103962640B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193216Y (en) * | 1993-07-30 | 1995-03-29 | 顾关耀 | Metal band saw machine |
| TW200512055A (en) * | 2003-09-26 | 2005-04-01 | Way Train Ind Co Ltd | Band-saw machine tension measuring device |
| TW200821116A (en) * | 2006-11-09 | 2008-05-16 | Rexon Ind Corp Ltd | Table saw machine |
| CN201493537U (en) * | 2009-09-04 | 2010-06-02 | 广州精新泽自动化设备有限公司 | Electric tube cutting machine |
| CN202271419U (en) * | 2011-09-15 | 2012-06-13 | 青岛金岭电器有限公司 | Fast tensioning mechanism of saw blade of woodworking band-sawing machine |
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| Publication number | Publication date |
|---|---|
| CN103962640A (en) | 2014-08-06 |
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