CN201231491Y - Tube shearing knife with stable feeding and cutter withdraw - Google Patents
Tube shearing knife with stable feeding and cutter withdraw Download PDFInfo
- Publication number
- CN201231491Y CN201231491Y CNU2008201219482U CN200820121948U CN201231491Y CN 201231491 Y CN201231491 Y CN 201231491Y CN U2008201219482 U CNU2008201219482 U CN U2008201219482U CN 200820121948 U CN200820121948 U CN 200820121948U CN 201231491 Y CN201231491 Y CN 201231491Y
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- spinal plate
- cutter
- blade
- knife rest
- feed
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Abstract
The utility model discloses a tube cutting tool which advances and retreats steadily. The tube cutting tool comprises an F-shaped tool post, a blade, a rack arranged at the back of the blade, a gear, a handgrip and a return spring. A blade sliding slot is arranged on the main body of the blade, and a pin rod fixed on the tool post is located in the blade sliding slot. A feed spinal plate mechanism is installed on the handgrip to push the gear to rotate. A stop spinal plate mechanism is installed on the tool post beside the rack at the back of the blade. Ratchets matching with the teeth of the gear are arranged at the front part of a feed spinal plate of the tool feed spinal plate, and a protruding part is arranged at the rear part of the feed spinal plate. A pull rod is arranged on the back of a stop spinal plate of the stop spinal plate mechanism and threads through a matching notch arranged on the handgrip. When the pull rod is pulled, the stop spinal plate mechanism disengages with the rack at the back of the blade, and at the same time the head of the stop spinal plate jacks up the protruding part of the feed spinal plate to enable the ratchets of the feed spinal plate to disengage with the gear. The tube cutting tool is reasonable and simple in structure, low in manufacturing precision, simple and stable in tool advancing and retreating movements and is convenient to use.
Description
Technical field
The utility model relates to manual cutting implement, specifically a kind of tube scissors of shearing the advance and retreat cutter stable performance of big caliber PVC (plastic cement) pipe.
Background technology
The shearing employing of common PVC (plastic cement) pipe is manual or power saws is sawed-off, wastes time and energy when operation.Simultaneously, the sawing mouth is inhomogeneous, and overlap or burr appear in regular meeting, influences the use of pipe.Chinese patent, the patent No. are 02217351.x, and the utility model patent that name is called " the plastic cement pipe is cut fast " has disclosed a kind of plastic conduit scissors, has solved above-mentioned problem.It is cut the composite support frame by pipe and cuts flexible handle axle and pipe on the composite support frame and cut the flexible handle that the composite support frame links to each other and formed by being located at pipe.The front portion that pipe is cut the composite support frame is provided with curved edge, and the rear portion is a fixed handle, and flexible handle is provided with gear.Pipe is cut and also is provided with one on the composite support frame, and this axle is cut the composite support frame with movable blades and pipe and connected together.The rear portion of movable blades is provided with the movable blades gear, and this movable blades gear is meshed with the flexible handle gear.Should " the plastic cement pipe is cut fast " can once cut off pipe.But its obvious defects is, can only shear the less pvc pipe of caliber, for caliber greater than 100 millimeters pvc pipe with powerless.
At the problems referred to above, the patent No. is that 200720113434.8 Chinese patent discloses a kind of tube scissors.It comprises knife rest and matches with knife rest and is incorporated in the blade that slides in the cutter saddle trough.The back of blade is provided with tooth bar.Knife rest is the F shape, and the cutting edge of blade is facing to the minor face of knife rest F shape.The gear that is meshed with the tooth bar of blade is housed on knife rest, is that pivot is provided with one handle with the gear shaft, is equipped with to promote the feed spinal plate mechanism that gear rotates on handle.On the other knife rest of gear, the withdrawing spinal plate mechanism that stops gear to rotate is installed.Be connected with return spring between the afterbody of blade and the knife rest.Have the blade loose slot on the main body of blade, the pin rod that is fixed on the knife rest is positioned at the blade loose slot.It is 120 millimeters relatively large pvc pipe that this tube scissors can be sheared caliber.But shortcoming is very high to the required precision of feed spinal plate mechanism processing.More seriously because the required precision of feed spinal plate mechanism processing is very high, feed spinal plate and withdrawing spinal plate mechanism all will work by gear again, when the precision of feed spinal plate has discrepancy slightly, though having broken away from gear, the withdrawing spinal plate desires withdrawing, but the feed spinal plate still is stuck on the teeth of gear, causes the withdrawing failure.The shearing work meeting is forced to pause like this.
Another patent application of applicant (application number is 200820087621.8) improves on above-mentioned patent basis, discloses another kind of tube scissors.Be equipped with on the upper handle of this tube scissors and promote the feed spinal plate mechanism that gear rotates, be arranged on the other knife rest of blade back tooth bar and stop cutter spinal plate mechanism.The feed spinal plate of feed spinal plate mechanism and stop cutter spinal plate mechanism stop be provided with brace between the cutter spinal plate.This technology decreases in the making required precision.But destabilizing factor appears when withdrawing sometimes.Therefore, this technology still has further improved place.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, to society disclose a kind of simple and reasonable, make, install simple, withdrawing is stable convenient, is applicable to the tube scissors of shearing big caliber PVC (plastic cement) pipe.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
The stable tube scissors of a kind of cutter of advancing and retreat, comprise " F " shape knife rest, cutting edge is facing to the minor face of " F " shape knife rest, the blade that can in cutter saddle trough, slide to minor face, be arranged on the tooth bar at blade back, the gear that is meshed with tooth bar on the blade is housed on the knife rest, with the gear shaft is that pivot is provided with one handle, be connected the return spring between blade afterbody and the knife rest rear portion, have a straight blade sliding tray on the main body of blade, the pin rod that is fixed on the knife rest is positioned at the blade sliding tray, be equipped with on the handle and promote the feed spinal plate mechanism that gear rotates, be equipped with on the knife rest on blade back tooth bar side and stop cutter spinal plate mechanism; Portion is shaped on the ratchet that matches with the teeth of gear before the feed spinal plate of feed spinal plate mechanism, and its rear portion is shaped on protuberance; The back of stopping the cutter spinal plate of stopping cutter spinal plate mechanism is provided with pull bar, and pull bar passes the notch of leaving on the handle that matches with pull bar; When pulling pull bar, stop the tooth bar that the ratchet of cutter spinal plate breaks away from the blade back, the head that stops the cutter spinal plate simultaneously makes the ratchet of feed spinal plate break away from gear the protuberance of the feed spinal plate jack-up that makes progress.
Above-mentioned feed spinal plate mechanism comprises the feed spinal plate that matches with the teeth of gear, and the feed spinal plate is articulated in feed spinal plate pivot pin and feed spinal plate torsion spring on the handle; The front portion of feed spinal plate is shaped on the ratchet that matches with the teeth of gear, and its rear portion is shaped on protuberance.
Above-mentioned stop cutter spinal plate mechanism comprise match with blade back tooth bar stop the cutter spinal plate, will stop the cutter spinal plate and be articulated in stopping cutter spinal plate pivot pin and stopping cutter spinal plate torsion spring on the other knife rest of blade back tooth bar; Describedly stop that portion is the ratchet that matches with the tooth bar at blade back before the cutter spinal plate, the back of stopping the cutter spinal plate is provided with pull bar, and pull bar passes the notch of leaving on the handle that matches with pull bar.
The measure of taking for further optimization technique scheme also comprises:
The opening part of above-mentioned " F " shape knife rest is provided with a fender bracket, and fender bracket is a pivot with the fender bracket axle on the knife rest, is provided with the cutter groove in the fender bracket, and the head steady pin of fender bracket buckles in the snap close that is provided with on the knife rest.
Above-mentioned knife rest is provided with beam, and this beam is positioned at the rearward end and the contacted position of knife rest of blade.
Above-mentioned knife rest afterbody is provided with hook, and handle is provided with the fixedly pin rod that matches with this hook.
Be provided with preceding foot rest by fixed mechanism under the bottom surface of above-mentioned knife rest front portion; This fixed mechanism comprise the lower end pass knife rest the bottom surface and with described before the screw rod of foot rest bolt, be set on the screw rod from top to bottom successively and be positioned at nut, spring, the setting-up piece of top, knife rest bottom surface.
The rear portion of above-mentioned knife rest bottom is fixedly connected with rear leg.
Because the utility model has been taked above-mentioned technical measures, it compared with prior art has following advantage:
1, because the rear portion of feed spinal plate is shaped on protuberance, the back of stopping the cutter spinal plate of stopping cutter spinal plate mechanism is provided with pull bar, pull bar passes the notch of leaving on the handle that matches with pull bar, when pulling pull bar, stop the tooth bar at the ratchet disengaging blade back of cutter spinal plate, the head that stops the cutter spinal plate simultaneously makes the ratchet of feed spinal plate break away from gear the protuberance of the feed spinal plate jack-up that makes progress.This simply stablizes the action of withdrawing.
2, feed spinal plate of the present utility model and stop the cutter spinal plate and do not have an annexation textural, fairly simple on the structure, therefore, it is low to make required precision.
3, beam can reduce the noise of blade when regaining, and improves working environment, can also reduce the vibration of blade when regaining simultaneously, thereby reduces the infringement of blade to knife rest, increases the service life.
4, because preceding foot rest can rotate around screw rod, therefore can rotate different angles and place cutter hub, make that use is more convenient according to different situations.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the cutaway view of A-A position among Fig. 1;
Fig. 3 is the left view of the utility model embodiment;
Fig. 4 is the cutaway view of B-B position when stopping the cutter state among Fig. 3;
Fig. 5 is the cutaway view of B-B position during the withdrawing state among Fig. 3;
Fig. 6 is the vertical view of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The stable tube scissors of advance and retreat cutter, comprise " F " shape knife rest 1, cutting edge is facing to the minor face of " F " shape knife rest, the blade 2 that can in cutter saddle trough, slide to minor face, be arranged on the tooth bar 21 at blade back, the gear 3 that is meshed with tooth bar 21 on the blade 2 is housed on the knife rest 1, with the gear shaft is that pivot is provided with one handle 4, be connected the return spring 5 between blade 2 afterbodys and knife rest 1 rear portion, have a straight blade sliding tray 2a on the main body of blade 2, the pin rod 22 that is fixed on the knife rest 1 is positioned at blade sliding tray 2a, be equipped with on the handle 4 and promote the feed spinal plate mechanism that gear 3 rotates, be equipped with on the knife rest 1 on blade back tooth bar 21 sides and stop cutter spinal plate mechanism; The front portion of the feed spinal plate 61 of feed spinal plate mechanism is shaped on the ratchet 61a that matches with the teeth of gear 3, and its rear portion is shaped on protuberance 61b; The back of stopping cutter spinal plate 71 of stopping cutter spinal plate mechanism is provided with pull bar 71a, and pull bar 71a passes the notch 4a that matches with pull bar 71a that leaves on the handle 4; When pulling pull bar 71a, stop the tooth bar 21 that the ratchet 71b of cutter spinal plate 71 breaks away from the blade back, the head that stops the cutter spinal plate simultaneously makes the ratchet 61a of feed spinal plate 61 break away from gear 3 the protuberance 61b of feed spinal plate 61 jack-up that makes progress.
Feed spinal plate mechanism comprises the feed spinal plate 61 that matches with the teeth of gear 3, and feed spinal plate 61 is articulated in feed spinal plate pivot pin 62 and feed spinal plate torsion spring 63 on the handle 4; The front portion of feed spinal plate 61 is shaped on the ratchet 61a that matches with the teeth of gear 3, and its rear portion is shaped on protuberance 61b.
Stop cutter spinal plate mechanism comprise match with blade back tooth bar 21 stop cutter spinal plate 71, will stop cutter spinal plate 71 and be articulated in stopping cutter spinal plate pivot pin 72 and stopping cutter spinal plate torsion spring 73 on the other knife rest 1 of blade back tooth bar 21; The back of stopping cutter spinal plate 71 is provided with pull bar 71a, stops that portion is the ratchet 71b that matches with the tooth bar 21 at blade back before the cutter spinal plate 71, and pull bar 71a passes the notch 4a that matches with pull bar 71a that leaves on the handle 4.
The opening part of " F " shape knife rest 1 is provided with a fender bracket 8, and fender bracket 8 is a pivot with the fender bracket axle on the knife rest 1 81, is provided with cutter groove 8a in the fender bracket 8, and the head steady pin 82 of fender bracket 8 buckles in the snap close 11 that is provided with on the knife rest 1.The effect of fender bracket 11 is to protect the safety of blade in running and operating process to reach to stablize, and work package is stabilized in the knife rest mouth.
Knife rest 1 is provided with beam 12, and this beam 12 is positioned at the rearward end and the knife rest 1 contacted position of blade 2.Beam can reduce the noise of blade when regaining, and improves working environment, can also reduce the vibration of blade when regaining simultaneously, thereby reduces the infringement of blade to knife rest, increases the service life.
Knife rest 1 afterbody is provided with hook 13, and handle 4 is provided with the fixedly pin rod 41 that matches with this hook 13.The effect of this structure is: can make tube scissors can hook pin rod on the handle with hook when not using, prevent that handle is free movable.
Be provided with preceding foot rest 95 by fixed mechanism under the bottom surface of knife rest 1 front portion; This fixed mechanism comprise the lower end pass knife rest 1 the bottom surface and with the screw rod 91 of preceding foot rest 95 bolts, be set on the screw rod 91 from top to bottom successively and be positioned at nut 92, spring 93, the setting-up piece 94 of top, knife rest 1 bottom surface.The rear portion of knife rest 1 bottom is fixedly connected with rear leg 96.Because preceding foot rest 95 can rotate around screw rod 91, therefore can rotate different angles and place cutter hub according to different situations, use in the convenient various occasions; Rear leg 96 be arranged so that putting of tube scissors is more stable.
During use, the pipe that will shear is put into the oral area of knife rest, covers fender bracket, and with the snap close of knife rest head fender bracket is fastened, and pipe is fixed in the knife rest mouth.When upwards lifting handle, handle is because of being connected with knife rest by the pin rod axle, so handle is to rotate, the feed spinal plate on the handle simultaneously around gear rotate and the effect of feed spinal plate at torsion spring under to slide into the next tooth of gear also meshing.Handle is pressed, at this moment feed spinal plate driven gear rotates again, and gear moves to the pipe direction by the rack drives blade at blade back.Blade is subjected to being positioned at the restriction of the pin rod of blade sliding tray, and the restriction of the cutter groove that is provided with in cutter saddle trough and the fender bracket, and blade can only be done towards the motion of pipe direction straight cuts, and, avoid blade in shear history, to be out of shape.Meanwhile, blade is in the proal while, and the rack drives on the blade is stopped the cutter spinal plate and rotated and upwards lift around pin rod along chute, and slides into the next tooth of tooth bar and meshing under the effect of torsion spring, stops blade and moves backward.
Upwards lift handle once more and repeat action last time.Handle is operated up and down once can make the advance distance of a facewidth of about tooth bar of blade.Repeatedly operating upper handle up and down can cut off pipe gradually.
After shearing is finished, pull the pull bar that stops on the cutter spinal plate backward, stop the cutter spinal plate and rotate, thereby make the ratchet and the tooth bar on the blade back that stop on the cutter spinal plate break away from around stopping cutter spinal plate pivot pin.Again owing to stop the cutter spinal plate can be run into the feed spinal plate in the process of swaying protuberance, with the protuberance of the feed spinal plate jack-up that makes progress, and then drive feed spinal plate moves into the rotation of cutter spinal plate pivot pin, make ratchet on the feed spinal plate also break away from teeth on the gear, at this moment blade is regained under the effect of extension spring.
Claims (8)
1, the stable tube scissors of a kind of cutter of advancing and retreat, comprise " F " shape knife rest (1), cutting edge is facing to the minor face of " F " shape knife rest, the blade (2) that can in cutter saddle trough, slide to minor face, be arranged on the tooth bar (21) at blade (2) back, the gear (3) that is meshed with tooth bar (21) on the blade (2) is housed on the knife rest (1), with the gear shaft is that pivot is provided with one handle (4), be connected the return spring (5) between blade (2) afterbody and knife rest (1) rear portion, have a straight blade sliding tray (2a) on the main body of blade (2), the pin rod (22) that is fixed on the knife rest (1) is positioned at blade sliding tray (2a), be equipped with on the handle (4) and promote the feed spinal plate mechanism that gear (3) rotates, be equipped with on the knife rest (1) on blade back tooth bar (21) side and stop cutter spinal plate mechanism; It is characterized in that: the front portion of the feed spinal plate (61) of described feed spinal plate mechanism is shaped on the ratchet (61a) that matches with the teeth of described gear (3), and its rear portion is shaped on protuberance (61b); The described back of stopping cutter spinal plate (71) of stopping cutter spinal plate mechanism is provided with pull bar (71a), and described pull bar (71a) passes the notch of leaving on the handle (4) (4a) that matches with described pull bar (71a); When pulling described pull bar (71a), the described ratchet (71b) that stops cutter spinal plate (71) breaks away from the tooth bar (21) at blade back, the head that stops the cutter spinal plate simultaneously with the protuberance (61b) of described feed spinal plate (61) upwards jack-up make the ratchet (61a) of feed spinal plate (61) break away from described gear (3).
2, the stable tube scissors of advance and retreat cutter according to claim 1, it is characterized in that: described feed spinal plate mechanism comprises the feed spinal plate (61) that matches with the teeth of gear (3), and feed spinal plate (61) is articulated in feed spinal plate pivot pin (62) and feed spinal plate torsion spring (63) on the handle (4); The front portion of described feed spinal plate (61) is shaped on the ratchet (61a) that matches with the teeth of described gear (3), and its rear portion is shaped on protuberance (61b).
3, the stable tube scissors of advance and retreat cutter according to claim 1, it is characterized in that: described stop cutter spinal plate mechanism comprise match with blade back tooth bar (21) stop cutter spinal plate (71), will stop cutter spinal plate (71) and be articulated in stopping cutter spinal plate pivot pin (72) and stopping cutter spinal plate torsion spring (73) on the other knife rest (1) of blade back tooth bar (21); Described back of stopping cutter spinal plate (71) is provided with pull bar (71a), described stop cutter spinal plate (71) before portion be the ratchet (71b) that matches with the tooth bar (21) at blade back, described pull bar (71a) passes the notch of leaving on the handle (4) (4a) that matches with described pull bar (71a).
4, the stable tube scissors of advance and retreat cutter according to claim 1; it is characterized in that: the opening part of described " F " shape knife rest (1) is provided with a fender bracket (8); fender bracket (8) is a pivot with the fender bracket axle (81) on the knife rest (1); be provided with cutter groove (8a) in the fender bracket (8), the head steady pin (82) of fender bracket (8) buckles into knife rest (1) and goes up in the snap close (11) that is provided with.
5, according to claim 1 or the stable tube scissors of 4 described advance and retreat cuttves, it is characterized in that: described knife rest (1) is provided with beam (12), and this beam (12) is positioned at the rearward end and the contacted position of described knife rest (1) of described blade (2).
6, the stable tube scissors of advance and retreat cutter according to claim 5 is characterized in that: described knife rest (1) afterbody is provided with hook (13), and described handle (4) is provided with the fixedly pin rod (41) that matches with this hook (13).
7, the stable tube scissors of advance and retreat cutter according to claim 6 is characterized in that: be provided with preceding foot rest (95) by fixed mechanism under the bottom surface of described knife rest (1) front portion; This fixed mechanism comprise the lower end pass knife rest (1) the bottom surface and with described before the screw rod (91) of foot rest (95) bolt, be set in top, knife rest (1) bottom surface was gone up and be positioned to described screw rod (91) nut (92), spring (93), setting-up piece (94) from top to bottom successively.
8, the stable tube scissors of advance and retreat cutter according to claim 6 is characterized in that: the rear portion of described knife rest (1) bottom is fixedly connected with rear leg (96).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201219482U CN201231491Y (en) | 2008-07-24 | 2008-07-24 | Tube shearing knife with stable feeding and cutter withdraw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201219482U CN201231491Y (en) | 2008-07-24 | 2008-07-24 | Tube shearing knife with stable feeding and cutter withdraw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201231491Y true CN201231491Y (en) | 2009-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201219482U Expired - Fee Related CN201231491Y (en) | 2008-07-24 | 2008-07-24 | Tube shearing knife with stable feeding and cutter withdraw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201231491Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110731534A (en) * | 2018-07-19 | 2020-01-31 | 秦皇岛烟草机械有限责任公司 | tobacco shredding machine and control method thereof |
-
2008
- 2008-07-24 CN CNU2008201219482U patent/CN201231491Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110731534A (en) * | 2018-07-19 | 2020-01-31 | 秦皇岛烟草机械有限责任公司 | tobacco shredding machine and control method thereof |
| CN110731534B (en) * | 2018-07-19 | 2022-07-22 | 秦皇岛烟草机械有限责任公司 | Tobacco cutter and control method thereof |
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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: 20090506 Termination date: 20110724 |