CN2772765Y - Tensioning mechanism of carpenter bandsaw - Google Patents
Tensioning mechanism of carpenter bandsaw Download PDFInfo
- Publication number
- CN2772765Y CN2772765Y CN 200520081034 CN200520081034U CN2772765Y CN 2772765 Y CN2772765 Y CN 2772765Y CN 200520081034 CN200520081034 CN 200520081034 CN 200520081034 U CN200520081034 U CN 200520081034U CN 2772765 Y CN2772765 Y CN 2772765Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- band
- guide rails
- upper box
- bands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a band saw blade tensioning mechanism of a woodworking band saw, which belongs to woodworking machinery. The utility model comprises a hand wheel arranged on an upper box body, a screw rod, etc., wherein the upper part of the screw rod is sheathed with a casing tube, the middle part penetrates through a square frame and the lower part is provided with two locking nuts and the other casing tube. The lower surfaces of the casing tubes are provided with upper shaft seats which are sheathed on the screw rod through upper holes of the upper axle seats; the lower end of the screw rod is also provided with a nut. Compression springs are arranged between the upper shaft seats and the nut; upper shafts are arranged on the upper shaft seats; the upper shaft seats and the square frame are arranged between two guide rails fixed on the upper box body and can slide along the two guide rails form top to bottom. An eccentric wheel is arranged in the square frame; a pin shaft provided with a raised head penetrates through a hole on the upper box body and is fixed in a shaft hole of the eccentric wheel; a handle is arranged on the raised head; a pointer is arranged on the upper box body; the lower surface or the lateral surface of the pointer is provided with a slotted hole; correspond positions on the upper shaft seats, which are positioned below a slotted hole of the upper box body are provided with scale marks. The utility model has the advantages the tensioning degrees of a band saw blade is quickly and accurately regulated, and the band saw blade tensioning mechanism is provided with the scales for convenient operation; the utility model can be used in various woodworking band saws.
Description
Technical field
The utility model belongs to the woodworking machinery technical field, more particularly relates to the improvement of the bands for band strainer of band saw.
Background technology
Band saw by base, be fixed on the frame that has upper box and lower box on the base, respectively be installed on upper box and the lower box go up axle and lower shaft, respectively with key be installed in driven big belt wheel and initiatively big belt wheel on axle and the lower shaft, be sleeved on bands for band on driven big belt wheel and the initiatively big belt wheel, be fixed on workbench on the frame, be fixed on motor on base or the frame, be installed in motor spool and lower shaft between transmission mechanism and electric machine controller etc. formed.In order to change bands for band, must make it lax; After the replacing, again must be again with its tensioning.Therefore, on its upper box the bands for band strainer is installed all.
Traditional bands for band strainer comprises the manual knob that is installed on the upper box, be fixed on screw rod on the manual knob, be fixed on the parts such as nut on the axle.Screw rod is installed in the nut with its external screw thread.Rotation is during manual knob, screw rod just can drive nut together with last axle and driven big belt wheel is last or following moving, thereby strengthen or reduce driven big belt wheel and the spacing between the belt wheel greatly initiatively, so just with the bands for band tensioning or relax.
The bands for band of band saw is generally longer, and tensioning or need continuously that the rotation manual knob much encloses when lax is time-consuming.That is to say that the operating efficiency of above-mentioned bands for band strainer is lower, the adjusting of bands for band tensioning degree is also not accurate enough.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of bands for band strainer of band saw is provided, and the adjusting that it makes the bands for band tensioning degree rapidly, accurately; And having scale, the ideal position that can know that the bands for band that indicates different width dimensions should regulate is convenient to operation.
In order to achieve the above object, the utility model comprises the handwheel that is installed on the upper box, is fixed on the parts such as screw rod on the handwheel.Screw rod top suit sleeve pipe, and two holes up and down of a square box are passed at its middle part, and the bottom is installed with two locking nuts and suit another sleeve pipe.There is a last axle bed that has spring base and last hole to be contained on the screw rod below the sleeve pipe with borehole jack on it.The lower end of screw rod also is installed with a nut.The compression spring is installed between last axle bed and the nut.The axle of going up of band saw is installed on the axle bed, and driven big belt wheel is installed in spool with bearing, last axle bed be installed in can along about between two guide rails that slide up and down of two guide rails, about two guide rails be fixed on the upper box.Square box also be installed in can along about between two guide rails that slide up and down of two guide rails, on the axis of square box eccentric wheel is installed.The hole that bearing pin that has a plush copper passes on the upper box is fixed in the eccentric axis hole, and being installed with on the plush copper of bearing pin can be with the handle of bearing pin rotation.
Have pointer on the upper box, the following or side of pointer has slotted hole.The corresponding position, slotted hole below that is positioned at upper box on the last axle bed has scale mark.When last axle bed moved up and down, the scale mark on it moved up and down thereupon, and motionless pointer just can be indicated the shift length of axle bed, that is had indicated the tensioning degree of bands for band.
About have two guide grooves up and down on two guide rails respectively.Last axle bed each side fixing a lateral pin that is inserted into respectively in the lower guide channel, square box each side fixing a lateral pin that is inserted into respectively in the upper rail.About last axle bed and square box two lateral pins make respectively axle bed and square box can only along about upper and lower two guide grooves of two guide rails slide up and down.
Between its plush copper and eccentric wheel, go back suit on the bearing pin and that an inboard has convex shoulder, periphery has externally threaded lining.Two nuts are installed on the lining, one interior, one outside.Be used from the rear wall that lining is locked at upper box at interior nut and convex shoulder one.Using handle and eccentric wheel with the bands for band tensioning, when eccentric wheel is adjusted to the extreme higher position, again nut is outside firmly being twisted the plush copper inboard that leans against bearing pin, just eccentric wheel can be resisted against on the convex shoulder of lining, and then eccentric locking position.
The utility model is work like this: two locking nuts are upwards unscrewed along screw rod, made screw rod no longer bear the longitudinal tension force of compression spring.With the handle rotary pin shaft, force eccentric peak to be in the top then.In this course, sleeve pipe, screw rod and the nut that eccentric wheel drives square box, screw rod top suit successively moves on fast, and will compress spring fast and compress.Rotate handwheel subsequently by hand, force the screw rod rotation, will move in the nut continuation slowly.This moment, nut continued to compress the spring compression, the very fast increase of tension force that the compression spring makes progress.When this tension force greater than last axle bed, go up axle, driven big belt wheel when being sleeved on the pressure of the bands for band on driven big belt wheel and the initiatively big belt wheel, just can make axle bed, go up on axle, the driven big belt wheel and move, also bands for band tensioning soon.When being tensioned to ideal position, with two locking nuts this locking position with screw rod, the scale that will go up the axle bed back simultaneously gets final product.After this just can make the band saw operate as normal.When need changing bands for band, only need the opposite spin handle, make eccentric minimum point be in the top bands for band that can relax fast it is changed.During later on each tensioning, the ideal position that axle bed is positioned at demarcated.
Above-mentioned adjustment process only is adapted to a kind of bands for band of size.The bands for band that is to say different size needs to be adjusted to different ideal positions according to above-mentioned steps, and carries out corresponding and different scale.Therefore, on the dial of last axle bed back, demarcated the ideal position of the bands for band of multiple size.
Task of the present utility model comes to this and finishes.
The utility model makes the adjusting of bands for band tensioning degree rapid, accurate; And having scale, the ideal position that can know that the bands for band that indicates different width dimensions should regulate is convenient to operation.It can be widely used in the various band saws.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the partial rear view of Fig. 1.
Fig. 4 removes the partial view of driven big belt wheel for Fig. 1.
The specific embodiment
Embodiment 1.A kind of bands for band strainer of band saw is as Fig. 1～shown in Figure 4.Band saw by base 1, have upper box 2 and lower box 3 frame 4, go up axle 5 and lower shaft, driven big belt wheel 6 and initiatively big belt wheel, the parts such as bands for band 7, workbench 8, motor, transmission mechanism and electric machine controller that are sleeved on driven big belt wheel 6 and the initiatively big belt wheel are formed.
The bands for band strainer comprises the handwheel 9 that is installed on the upper box 2, is fixed on the screw rod 10 on the handwheel 9.Screw rod 10 top suits sleeve pipe 11, and two holes up and down of a square box 12 are passed at its middle part, and the bottom is installed with two locking nuts 13 and suit another sleeve pipe 14.There is a last axle bed 15 that has spring base and last hole 16 to be sleeved on the screw rod 10 below the sleeve pipe 14 with hole on it 16.The lower end of screw rod 10 also is installed with a nut 17.Compression spring 18 is installed between last axle bed 15 and the nut 17.The axle 5 of going up of band saw is installed on the axle bed 15, and driven big belt wheel 6 is installed on the axle 5 with bearing.Last axle bed 15 be installed in can along about between two guide rails 19 that slide up and down of two guide rails 19, about two guide rails 19 be fixed on the upper box 2.Square box 12 also be installed in can along about between two guide rails 19 that slide up and down of two guide rails 19.The hole that bearing pin 22 that 20, one of eccentric wheels have plush copper 21 passes on the upper box 2 is installed on the axis of square box 12 to be fixed in the axis hole of eccentric wheel 20.On the plush copper 21 of bearing pin 22 handle 23 is installed.
Have pointer 24 on the upper box 2.Following or the side of pointer 24 has slotted hole 25 on the upper box 2.The corresponding position, below that is positioned at the slotted hole 25 on the upper box 2 on the last axle bed 15 has scale mark 26.
About have two guide grooves 27 up and down on two guide rails 19 respectively.Last axle bed 15 each side fixing a lateral pin 28 that is inserted into respectively in the lower guide channel 27, square box 12 each side fixing a lateral pin 29 that is inserted into respectively in the upper rail 27.
Between its plush copper 21 and eccentric wheel 20, go back suit on the bearing pin 22 and that an inboard has convex shoulder, periphery has externally threaded lining 30.Two nuts 31 and 32 are installed on the lining 30, and wherein nut 31 at interior, nut 32 outside.
Embodiment 1 makes the adjusting of bands for band tensioning degree rapid, accurate; And having scale, the ideal position that can know that the bands for band that indicates different width dimensions should regulate is convenient to operation.It can be widely used in the various band saws.
Claims (4)
1. the bands for band strainer of a band saw, it comprises the handwheel that is installed on the upper box, be fixed on the screw rod on the handwheel, it is characterized in that screw rod top suit sleeve pipe, two holes up and down of a square box are passed at its middle part, the bottom is installed with two locking nuts and suit another sleeve pipe, there is a last axle bed that has spring base and last hole to be contained on the screw rod below the sleeve pipe with borehole jack on it, the lower end of screw rod also is installed with a nut, the compression spring is installed between last axle bed and the nut, the axle of going up of band saw is installed on the axle bed, driven big belt wheel is installed on the axle with bearing, last axle bed be installed in can along about between two guide rails that slide up and down of two guide rails, about two guide rails be fixed on the upper box, square box also be installed in can along about between two guide rails that slide up and down of two guide rails, on the axis of square box eccentric wheel is installed, the hole that bearing pin that has a plush copper passes on the upper box is fixed in the eccentric axis hole, on the plush copper of bearing pin handle is installed.
2. according to the bands for band strainer of the described band saw of claim 1, it is characterized in that having pointer on the said upper box, the following or side of pointer has slotted hole, and the corresponding position, slotted hole below that is positioned at upper box on the last axle bed has scale mark.
3. according to the bands for band strainer of claim 1 or 2 described band saws, it is characterized in that having two guide grooves up and down on two guide rails respectively about said, last axle bed each side fixing a lateral pin that is inserted into respectively in the lower guide channel, square box each side fixing a lateral pin that is inserted into respectively in the upper rail.
4. according to the bands for band strainer of the described band saw of claim 3, it is characterized in that between its plush copper and eccentric wheel, going back on the said bearing pin suit and that an inboard has convex shoulder, periphery has externally threaded lining, two nuts are installed on the lining.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520081034 CN2772765Y (en) | 2005-01-31 | 2005-01-31 | Tensioning mechanism of carpenter bandsaw |
| TW094211342U TWM291883U (en) | 2005-01-31 | 2005-07-05 | Tightening structure used in carpenter band saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520081034 CN2772765Y (en) | 2005-01-31 | 2005-01-31 | Tensioning mechanism of carpenter bandsaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772765Y true CN2772765Y (en) | 2006-04-19 |
Family
ID=36708021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520081034 Expired - Fee Related CN2772765Y (en) | 2005-01-31 | 2005-01-31 | Tensioning mechanism of carpenter bandsaw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN2772765Y (en) |
| TW (1) | TWM291883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274720B (en) * | 2007-03-27 | 2010-05-19 | 宝山钢铁股份有限公司 | Method and device for adjusting strip tension |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103659957A (en) * | 2013-06-08 | 2014-03-26 | 成都天磐科技有限责任公司 | Cutting device capable of automatically collecting shavings |
| CN107839024A (en) * | 2017-11-29 | 2018-03-27 | 柳州市鸿联木业有限公司 | Timber band sawing machine |
-
2005
- 2005-01-31 CN CN 200520081034 patent/CN2772765Y/en not_active Expired - Fee Related
- 2005-07-05 TW TW094211342U patent/TWM291883U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274720B (en) * | 2007-03-27 | 2010-05-19 | 宝山钢铁股份有限公司 | Method and device for adjusting strip tension |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM291883U (en) | 2006-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060419 Termination date: 20140131 |