CN202824855U - Cutter lifting range adjusting mechanism of scroll saw - Google Patents
Cutter lifting range adjusting mechanism of scroll saw Download PDFInfo
- Publication number
- CN202824855U CN202824855U CN 201220518996 CN201220518996U CN202824855U CN 202824855 U CN202824855 U CN 202824855U CN 201220518996 CN201220518996 CN 201220518996 CN 201220518996 U CN201220518996 U CN 201220518996U CN 202824855 U CN202824855 U CN 202824855U
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- CN
- China
- Prior art keywords
- cutter lifting
- adjusting knob
- sweep
- saw
- wheel bracket
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- Expired - Fee Related
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Abstract
The utility model relates to a cutter lifting range adjusting mechanism of a scroll saw. The cutter lifting range adjusting mechanism of the scroll saw comprises an adjusting knob, a cutter lifting shaft and a guide roller support frame. Guide rollers are rotatably installed at the front end of the guide roller support frame, and supports below a saw blade of the scroll saw. The middle of the guide roller support frame rotatably supports in a shell body of the scroll saw through a revolving shaft. A through hole is formed in the side wall on the back portion of the guide roller support frame. The cutter lifting shaft penetrates through the side wall of the shell body. The outer end of the cutter lifting shaft is connected with the adjusting knob and can rotate along the adjusting knob. An eccentric shaft part is placed at the inner end of the cutter lifting shaft and penetrates through the through hole. The cutter lifting range adjusting mechanism of the scroll saw is characterized in that the eccentric shaft part is provided with an arc face part and a cambered surface with radius gradually becoming smaller. Due to the fact that the eccentric shaft part is provided with the arc face part and the cambered surface part with radius gradually becoming smaller, angle of deflection of the guide roller support frame within a certain range cannot be limited. The range of the cutter lifting can be adjusted as long as the adjusting knob rotates any angles.
Description
Technical field
The utility model relates to a kind of sweep-saw with cutter lifting function, relates in particular to a kind of cutter lifting amplitude adjusted structure of sweep-saw.
Background technology
For improving the operating efficiency of sweep-saw, existing sweep-saw all has the cutter lifting function, and the cutter lifting function can in time be got rid of sawdust when saw blade is worked, and reduces the saw blade heating, improves cutting speed.
Be the Chinese utility model patent " lifter of sweep-saw " of ZL99203842.1 (notification number is CN2373213Y) such as a patent No., and drape over one's shoulders the Chinese utility model patent that the patent No. is ZL200420024532.0 (notification number is CN2717591Y) " sweep-saw with cutter lifting and saw blade spinfunction " and all disclosed a kind of like this sweep-saw with cutter lifting function.
Be control cutter lifting amplitude (cutter lifting amount), also be provided with cutter lifting amplitude adjusted structure on this sweep-saw, existing cutter lifting amplitude adjusted structure comprises adjusting knob, the cutter lifting axle, wheel bracket and guide wheel, wherein, guide wheel is rotatably installed in the front end of wheel bracket, the guide wheel periphery has annular guide channel, guide wheel is supported on the below of the saw blade of sweep-saw, on saw blade is shelved in the annular guide channel, the middle part of wheel bracket then is rotatably supported in the housing of sweep-saw by rotating shaft, by the amplitude that the swings up and down control to the wheel bracket front end, realize the adjusting of the cutter lifting amplitude of sweep-saw, have perforation on the wheel bracket sidewall, the cutter lifting axle wears on the housing, the outer end of cutter lifting axle is connected with adjusting knob, rotate adjusting knob and can drive the rotation of cutter lifting axle, the inner of cutter lifting axle has eccentric axial portion, eccentric axial portion is located in the perforation, the cross section of eccentric axial portion is non-circular structure, can be divided into the circular arc face, the first planar portions, the second planar portions and the 3rd planar portions, the first planar portions, the second planar portions and the 3rd planar portions arrive the distance in axle center less than the radius of circular arc face, and successively decrease successively.The wheel bracket amplitude of fluctuation is larger, then the cutter lifting amplitude is larger, circular arc facial with at wheel bracket when the perforation inner hole wall that swings initial period contacts, then amplitude of fluctuation is minimum, does not possess the cutter lifting function, when the first planar portions with at wheel bracket when the perforation inner hole wall that swings initial period is relative, possess the cutter lifting function, but the cutter lifting amplitude is minimum, when the 3rd planar portions with at wheel bracket when the perforation inner hole wall that swings initial period is relative, possess the cutter lifting function, but the cutter lifting amplitude is maximum.The cutter lifting amplitude adjusted structure of existing this sweep-saw generally only has three gears, and the adjusting of cutter lifting amplitude does not possess the step-less adjustment function, for the needs of difference cutting sheet material, only has three gears desirable not enough.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of cutter lifting amplitude adjusted structure that can realize the sweep-saw of stepless lasting adjusting cutter lifting amplitude is provided for above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of cutter lifting amplitude adjusted structure of sweep-saw, comprise adjusting knob, the cutter lifting axle, wheel bracket, the front end of described wheel bracket is rotatablely equipped with guide wheel, this guide wheel is supported on the below of the saw blade of sweep-saw, the middle part of wheel bracket then is rotatably supported in the housing of sweep-saw by rotating shaft, have perforation on the sidewall at wheel bracket rear portion, described cutter lifting axle is located on the housing sidewall, the outer end of cutter lifting axle is connected with adjusting knob and can rotates with adjusting knob, the inner of cutter lifting axle has eccentric axial portion, and eccentric axial portion is located in the perforation; It is characterized in that: described eccentric axial portion has the cambered surface section that circular arc is facial and radius reduces gradually.
Above-mentioned cambered surface section has two sections, and the two ends from the circular arc face begin to reduce gradually to the medium position radius of eccentric axial portion respectively, and two cambered surface sections form the cambered surface transition in the centre.So no matter cutter lifting axle formal dress or anti-dress all can ensure a cambered surface section and work convenient the installation.
Be provided with the corner locating structure that adjusting knob is rotated between the lateral wall of above-mentioned adjusting knob and housing in 180 ° of scopes.
Above-mentioned corner locating structure comprises spacer pin and spring, the inner face of described adjusting knob has accommodating cavity and spring cavity, described spring cavity is positioned on the accommodating cavity madial wall, described spacer pin and spring are located in this accommodating cavity, spacer pin is held by spring and keeps exposing outside all the time adjusting knob inner face trend, the lateral wall of described housing is provided with the arc block reinforcement, and this arc block reinforcement is positioned at accommodating cavity, and described spacer pin cooperates with arc block reinforcement gear.This position limiting structure has advantages of simple in structure.
The lateral wall of above-mentioned housing is provided with the concave part that also is provided with and continuous distributed consistent with the spacer pin movement locus, and the bottom surface of described spacer pin is sphere, and is positioned at described concave part.By cooperating of concave part and spacer pin bottom surface, the angle that can indicate adjusting knob to rotate, adjusting knob is rotated more feel.
The inner face center position of above-mentioned adjusting knob has inwardly protruded joint pin, has spliced eye on the front end face of joint pin, and described joint pin passes the lateral wall of housing, and the outer end of cutter lifting axle is plugged in the described spliced eye.
Above-mentioned guide wheel periphery has annular guide channel, and saw blade is shelved in the annular guide channel.Annular guide channel can better lead to saw blade, prevents from rocking before and after the saw blade.
Above-mentioned wheel bracket takes the shape of the letter U, and described guide wheel is rotatably connected on the front opening place of wheel bracket, and described perforation then is arranged on the sidewall of wheel bracket one side.This wheel bracket is simple in structure, is convenient to install guide wheel.
Compared with prior art, the utility model has the advantage of: this structure remains by the amplitude that the swings up and down control to the wheel bracket front end, realize the adjusting of the cutter lifting amplitude of sweep-saw, but because its eccentric axial portion has the cambered surface section that circular arc is facial and radius reduces gradually, stepless restriction wheel bracket deflection angle so within the specific limits, as long as the adjusting knob rotation is arbitrarily angled, all play the effect of regulating the cutter lifting amplitude.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment;
Fig. 2 is the perspective view after the utility model embodiment removes general housing;
Fig. 3 is the solid assembling schematic diagram of the utility model embodiment critical piece;
Fig. 4 is the three-dimensional assembling exploded view of the utility model embodiment critical piece;
Fig. 5 is the three-dimensional assembling exploded view of adjusting knob among the utility model embodiment;
Fig. 6 is the perspective view of adjusting knob among the utility model embodiment;
Fig. 7 is the side view of the cutter lifting axle of adjusting knob among the utility model embodiment.
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～7, be a preferred embodiment of the present utility model.
A kind of cutter lifting amplitude adjusted structure of sweep-saw, include adjusting knob 1, cutter lifting axle 2, wheel bracket 3, wheel bracket 3 takes the shape of the letter U, guide wheel 4 is rotatably connected on the front opening place of wheel bracket 3, guide wheel 4 peripheries have annular guide channel 41, guide wheel 4 is supported on the below of the saw blade 5 of sweep-saw, and saw blade 5 is shelved in the annular guide channel 41.The middle part of wheel bracket 3 then is rotatably supported in the housing 6 of sweep-saw by rotating shaft 31, has perforation 32 on the sidewall at wheel bracket 3 rear portions, and boring a hole 32 is arranged on the sidewall of wheel bracket 3 one sides.
Be provided with the corner locating structure that adjusting knob 1 is rotated between the lateral wall of adjusting knob 1 and housing 6 in 180 ° of scopes.
Shown in Fig. 5,6, the corner locating structure comprises spacer pin 7 and spring 8, the inner face of adjusting knob 1 has accommodating cavity 11 and spring cavity 12, spring cavity 12 is positioned on accommodating cavity 11 madial walls, spacer pin 7 and spring 8 are located in this accommodating cavity 11, and spacer pin 7 is held by spring 8 and keeps exposing outside all the time adjusting knob 1 inner face trend, and the lateral wall of housing 6 is provided with arc block reinforcement 61, this arc block reinforcement 61 is positioned at accommodating cavity 11, and spacer pin 7 cooperates with arc block reinforcement 61 gears.
Shown in Fig. 5,6, the lateral wall of housing 6 is provided with the concave part 62 that also is provided with and continuous distributed consistent with spacer pin 7 movement locus, and the bottom surface of spacer pin 7 is sphere, and is positioned at concave part 62.The inner face center position of adjusting knob 1 has inwardly protruded joint pin 13, has spliced eye 14 on the front end face of joint pin 13, and joint pin 13 passes the lateral wall of housing 6, and the outer end of cutter lifting axle 2 is plugged in the spliced eye 14.
This structure remains by the amplitude that the swings up and down control to the wheel bracket front end, realize the adjusting of the cutter lifting amplitude of sweep-saw, Principles of Regulation and prior art are basic identical, but because its eccentric axial portion has the cambered surface section that circular arc is facial and radius reduces gradually, stepless restriction wheel bracket deflection angle so within the specific limits, as long as the adjusting knob rotation is arbitrarily angled, all play the effect of regulating the cutter lifting amplitude.
Claims (8)
1. the cutter lifting amplitude adjusted structure of a sweep-saw, comprise adjusting knob (1), cutter lifting axle (2), wheel bracket (3), the front end of described wheel bracket (3) is rotatablely equipped with guide wheel (4), guide wheel (4) is supported on the below of the saw blade (5) of sweep-saw, the middle part of wheel bracket (3) then is rotatably supported in the housing (6) of sweep-saw by rotating shaft (31), have perforation (32) on the sidewall at wheel bracket (3) rear portion, described cutter lifting axle (2) is located on housing (6) sidewall, the outer end of cutter lifting axle (2) is connected with adjusting knob (1) and can rotates with adjusting knob (1), the inner of cutter lifting axle (2) has eccentric axial portion (21), and eccentric axial portion (21) is located in the perforation (32); It is characterized in that: described eccentric axial portion (21) has the cambered surface section (212) that circular arc face (211) and radius reduce gradually.
2. the cutter lifting amplitude adjusted structure of sweep-saw according to claim 1, it is characterized in that: described cambered surface section (212) has two sections, two ends from circular arc facial (211) begin to reduce gradually to the medium position radius of eccentric axial portion (21) respectively, and two cambered surface sections (212) form the cambered surface transition in the centre.
3. the cutter lifting amplitude adjusted structure of sweep-saw according to claim 2 is characterized in that: be provided with the corner locating structure that adjusting knob (1) is rotated between the lateral wall of described adjusting knob (1) and housing (6) in 180 ° of scopes.
4. the cutter lifting amplitude adjusted structure of sweep-saw according to claim 3, it is characterized in that: described corner locating structure comprises spacer pin (7) and spring (8), the inner face of described adjusting knob (1) has accommodating cavity (11) and spring cavity (12), described spring cavity (12) is positioned on accommodating cavity (11) madial wall, described spacer pin (7) and spring (8) are located in this accommodating cavity (11), spacer pin (7) is held by spring (8) and keeps exposing outside all the time adjusting knob (1) inner face trend, the lateral wall of described housing (6) is provided with arc block reinforcement (61), this arc block reinforcement (61) is positioned at accommodating cavity (11), and described spacer pin (7) cooperates with arc block reinforcement (61) gear.
5. the cutter lifting amplitude adjusted structure of sweep-saw according to claim 4, it is characterized in that: the lateral wall of described housing (6) is provided with the concave part (62) that also is provided with and continuous distributed consistent with spacer pin (7) movement locus, the bottom surface of described spacer pin (7) is sphere, and is positioned at described concave part (62).
6. the cutter lifting amplitude adjusted structure of sweep-saw according to claim 4, it is characterized in that: the inner face center position of described adjusting knob (1) has inwardly protruded joint pin (13), have spliced eye (14) on the front end face of joint pin (13), described joint pin (13) passes the lateral wall of housing (6), and the outer end of cutter lifting axle (2) is plugged in the spliced eye (14).
7. the cutter lifting amplitude adjusted structure of sweep-saw according to claim 1, it is characterized in that: described guide wheel (4) periphery has annular guide channel (41), and saw blade (5) is shelved in the annular guide channel (41).
8. the cutter lifting amplitude adjusted structure of each described sweep-saw according to claim 1～7, it is characterized in that: described wheel bracket (3) takes the shape of the letter U, described guide wheel (4) is rotatably connected on the front opening place of wheel bracket (3), and described perforation (32) then is arranged on the sidewall of wheel bracket (3) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518996 CN202824855U (en) | 2012-10-10 | 2012-10-10 | Cutter lifting range adjusting mechanism of scroll saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518996 CN202824855U (en) | 2012-10-10 | 2012-10-10 | Cutter lifting range adjusting mechanism of scroll saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824855U true CN202824855U (en) | 2013-03-27 |
Family
ID=47936648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220518996 Expired - Fee Related CN202824855U (en) | 2012-10-10 | 2012-10-10 | Cutter lifting range adjusting mechanism of scroll saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106305173A (en) * | 2016-08-23 | 2017-01-11 | 华南农业大学 | Clamping type electric high-branch saw for gardens and use method |
-
2012
- 2012-10-10 CN CN 201220518996 patent/CN202824855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106305173A (en) * | 2016-08-23 | 2017-01-11 | 华南农业大学 | Clamping type electric high-branch saw for gardens and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |