CN207189161U - A kind of tube cutting mechanism of binder - Google Patents

Abstract

The utility model provides a kind of tube cutting mechanism of binder, belongs to field of mechanical technique.It solves the problems, such as that existing binder does not possess automatic pipe cutting function.It includes support frame and blade, support frame is connected in the frame of binder, tool rest is connected with the top of support frame, handle of a knife is provided between tool rest and support frame, blade is connected with handle of a knife, blanking hole is provided through on tool rest, resigning hole is provided through at the top of support frame, blade blocks the lower port of blanking hole, handle of a knife outer end is stretched out outside tool rest, handle of a knife outer end both sides are equipped with torsion spring, handle of a knife outer end is resisted against on rack under the elastic force effect of torsion spring, rack upper end has inclined-plane, and when rack is displaced downwardly to when handle of a knife outer end is in contact with inclined-plane handle of a knife outer end can be in the presence of two torsion springs to being moved away from tool rest direction and blade is opened blanking hole.It has the advantages that can automatic pipe cutting, good operating stability.

Description

A kind of tube cutting mechanism of binder

Technical field

The utility model belongs to field of mechanical technique, is related to a kind of binder, more particularly to a kind of pipe cutting machine of binder Structure.

Background technology

With society and expanding economy, the generation substantial increase of various tickets, the bookbinding and filing of standardization have turned into The whole society's necessary work of each composition unit and task, and with the sustainable development of economy, this workload can be increasing, And with the substantial increase of bill quantity, bill bookbinding also from the bookbinding of simple spot punch become it is semi-automatic it is even complete from Dynamic professional finance binding machine.

The traditional full-automatic finance binding machine of in the market generally comprises perforating mechanism, pressure riveting mechanism and can drive punching Mechanism and the drive mechanism of pressure riveting mechanism work, are wherein provided with rack, drive mechanism is by driving above and below rack in perforating mechanism Move to drive perforating mechanism to move up and down, to realize the perforating mechanism automatic rollback after the punching and punching to paper.Paper After having beaten hole, the riveting pipe of rivet hot is put into hole, is then moved down and is pressed by drive mechanism driving pressure riveting mechanism. Traditional automatic finance binding machine only possesses punching and the function that presses, and does not possess the function of automatic pipe cutting, is all manually real Existing Pipe Cutting, but artificial cutting operation get up it is just cumbersome.

The content of the invention

The purpose of this utility model is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of pipe cutting machine of binder Structure, technical problem to be solved are how automatic pipe cutting to be realized on binder.

The purpose of this utility model can be realized by following technical proposal：

A kind of tube cutting mechanism of binder, binder include frame and are arranged in frame and are punched in binder When the rack that can move down, tube cutting mechanism includes support frame and blade, and described support frame is connected in frame, and it is special Sign is, is connected with tool rest at the top of described support frame, handle of a knife, blade and handle of a knife phase are provided between described tool rest and support frame Connect, blanking hole is provided through on tool rest, the resigning hole relative with blanking hole is provided through at the top of support frame, blade is by under The lower port in material hole is blocked, and described handle of a knife outer end is stretched out outside tool rest, and handle of a knife outer end both sides are equipped with torsion spring, one end of two torsion springs Act on handle of a knife and the other end of two torsion springs is acted on tool rest, handle of a knife outer end is resisted against under the elastic force effect of torsion spring On rack, rack upper end has inclined-plane, and can be turned round when rack is displaced downwardly to handle of a knife outer end when handle of a knife outer end is in contact with inclined-plane two Moved in the presence of spring to remote tool rest direction and blade is opened blanking hole.

Original state, binder are not punched, and handle of a knife outer end is resisted against on rack under the elastic force effect of torsion spring, is pressed Riveting pipe is stretched into blanking hole, and blade blocks the lower port of blanking hole, and riveting pipe lower end can not pass through the lower port of blanking hole And it extend into support frame.When binder is punched, rack starts to move down, when rack is displaced downwardly to the oblique of rack upper end When face is in contact with handle of a knife outer end, handle of a knife outer end can move and protruding under the elastic force effect of two torsion springs along inclined-plane, this Sample blade moves also with handle of a knife to the direction for stretching out tool rest, and now blade opens the lower port of blanking hole, the lower end meeting of riveting pipe Dropped into by the lower port of blanking hole through the resigning hole at the top of support frame in support frame.After punching terminates, rack is multiple upwards Position, with constantly moving up for rack, the inclined-plane of rack upper end can extrude handle of a knife outer end overcome the elastic force of two torsion springs act on and to stretching Enter the direction movement in tool rest, so blade will move into tool rest and riveting pipe is cut again, and Separately rear blade completely cuts through riveting pipe with inclined-plane for handle of a knife outer end, and blade again blocks the lower port of blanking hole to treat down Once cut.

The tube cutting mechanism of this binder utilizes inclined-plane and two when rack moves up and down by setting inclined-plane on rack The elastic force of torsion spring controls blade action, realizes automatically cutting off for riveting pipe well；And compared to using single spring and Speech, more balanced using two torsion springs and stressing conditions for handle of a knife by the way of the handle of a knife both sides, slided promoting handle of a knife When more to stablize, be less prone to toward a certain side skew situation.

In the tube cutting mechanism of above-mentioned binder, described handle of a knife includes shank body and roller, and described handle of a knife includes handle Body and roller, described shank body outer end is U-shaped and formed with positioning recess, and shank body is between the two lateral walls at positioning recess Provided with locating shaft, the both ends of locating shaft are stretched out outside the both sides of shank body respectively, and the part that locating shaft is located in positioning recess is arranged with Roller, roller are resisted against on rack, and one end of two torsion springs is connected to corresponding to locating shaft on one end.

It is resisted against by roller on rack, and because roller is set on locating shaft, therefore moved up and down in rack During when being in contact with roller roller can rotate, can so reduce the frictional force between rack and handle of a knife, make rack Move up and down it is unaffected.In addition, when being in contact on the inclined-plane on rack with roller, again can by inclined-plane squeezing roller, Roller inwall is set to act on locating shaft outer wall and inwardly promote shank body, so as to realize cutting of the blade to riveting pipe.

In the tube cutting mechanism of above-mentioned binder, one end of two torsion springs is respectively provided with the socket part of the circle of bending at least one, institute The socket part stated is enclosed on corresponding to locating shaft on one end.

One end of two torsion springs is bent at least one circle and forms socket part, socket part is enclosed on corresponding to locating shaft on one end Afterwards, for being in vertical bar shape compared to one end of common torsion spring, the outer of the inner edge of socket part and locating shaft can on the one hand be passed through Edge is leant, and is consequently formed the way of contact in face and face, and the active force for being advantageous to torsion spring is more stably acted on locating shaft；Separately On the one hand also torsion spring is caused to be not easy to disengage from locating shaft.

In the tube cutting mechanism of above-mentioned binder, described tool rest rectangular-blocklike, one end of described tool rest is provided with Two mounting holes, the other end of two torsion springs are respectively provided with the Access Division of bending, and described Access Division is caught in corresponding mounting hole.

The end of common torsion spring is all straight, and such structure, which is not suitable for being formed with tool rest, to be connected, therefore in tool rest Side two mounting holes are set, the other end of two torsion springs is bent and in mounting hole corresponding to being caught in, so not only allows torsion Possesses the preferable strong point between spring and tool rest, simultaneously because the other end of torsion spring acts on handle of a knife and roller is supported all the time Lean against on rack, therefore Access Division can not all deviate from out of mounting hole in whole work process.

In the tube cutting mechanism of above-mentioned binder, described shank body is in strip, and described tool rest bottom is provided with and handle Shape identical guide groove, shank body are located in guide groove, and one end of guide groove opens up to tool rest the one end for being provided with mounting hole, institute The outer end for the shank body stated is stretched out outside tool rest.

Setting and shank body shape identical guide groove in tool rest bottom, after shank body is located in guide groove, guide groove can be right Guide effect is played in the motion of shank body, avoids shank body from producing the skew toward other directions during mobile to outside tool rest, from And have influence on the accurate fit of handle of a knife and rack.

In the tube cutting mechanism of above-mentioned binder, the roof of described guide groove is provided with downwardly projecting limiting section, Described blanking hole is opened up to the lower surface of limiting section from the upper surface of tool rest, described shank body inner U-shaped and formed with Limit notch, described limiting section are located in limit notch, and described blade is connected to the bottom of shank body and blade section is located at Below limit notch, the limit notch described in when blade blocks the lower port of blanking hole is stuck on limiting section.

By the cooperation of limit notch and limiting section, the displacement of blade can be controlled, ensure blade to knife Maximum moving distance in seat can just cut off riveting pipe, avoid the excessive movement of blade and cause blade reverse movement by under Expect that the distance that hole is opened is long, the working time of whole tube cutting mechanism is saved with this.

Compared with prior art, the cooperation blade that the tube cutting mechanism of this binder passes through handle of a knife, rack and two torsion springs It can be moved forward and backward when rack moves up and down, realize automatically cutting off for riveting pipe so that the automaticity of binder is higher；Separately Outside, compared to using for single spring, the both ends that locating shaft is respectively acting on using the elastic force of two torsion springs are promoting handle of a knife More to stablize during slip.

Brief description of the drawings

Fig. 1 is the overall schematic of binder.

Fig. 2 is the schematic diagram that tube cutting mechanism is connected on support.

Fig. 3 is another angle schematic diagrames of Fig. 2.

Fig. 4 is the schematic diagram of tube cutting mechanism.

Fig. 5 is the connection diagram between tool rest and handle of a knife.

Fig. 6 is another angle schematic diagrames of Fig. 5.

Fig. 7 is the partial sectional view of tube cutting mechanism.

Fig. 8 is the sectional view between tool rest and handle of a knife.

Fig. 9 is the connection diagram between handle of a knife and blade.

Figure 10 is the schematic diagram of torsion spring.

In figure, 1, frame；2nd, perforating mechanism；3rd, pressure riveting mechanism；4th, drive mechanism；5th, rack；5a, inclined-plane；6th, driving electricity Machine；7th, travelling gear；8th, support frame；8a, resigning hole；9th, tool rest；9a, guide groove；9b, location division；9b1, positioning hole；9c, limit Position portion；9c1, blanking hole；9d, mounting hole；10th, blade；11st, handle of a knife；11a, shank body；11a1, positioning recess；It is 11a2, spacing recessed Mouthful；11b, roller；11c, locating shaft；12nd, pipe sleeve；13rd, torsion spring；13a, socket part；13b, Access Division.

Embodiment

It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.

As shown in figures 1 and 3, a kind of tube cutting mechanism of binder, tube cutting mechanism are arranged in the frame 1 of binder, machine Drive mechanism 4, perforating mechanism 2 and pressure riveting mechanism 3 are additionally provided with frame 1, drive mechanism 4 includes motor 6 and is fixed on Travelling gear 7 in the rotating shaft of motor 6, travelling gear 7 is between perforating mechanism 2 and pressure riveting mechanism 3.Perforating mechanism 2 Including rack 5, rack 5 is meshed with travelling gear 7 and travelling gear 7 can be driven by rack 5 and be moved down on perforating mechanism 2 It is dynamic.

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7 and Fig. 8, tube cutting mechanism includes support frame 8, tool rest 9, handle of a knife 11 and cut Knife, support frame 8 are connected in frame 1, and tool rest 9 is fixed on the top of support frame 8 by fastener, handle of a knife 11 located at support frame 8 with Between tool rest 9, and blade 10 is connected to the bottom of handle of a knife 11 by fastener.Handle of a knife 11 includes shank body 11a, and shank body 11a is in length Strip, the rectangular-blocklike of tool rest 9, the bottom of tool rest 9 are provided with one with shank body 11a shapes identical guide groove 9a and guide groove 9a End is opened up to the end face of tool rest 9, and shank body 11a is located in guide groove 9a and can slided along guide groove 9a, and shank body 11a's is outer End is stretched out outside the end of tool rest 9.Tool rest 9 is provided with the location division 9b for protruding from the roof of tool rest 9, and location division 9b is provided with positioning hole The pipe sleeve 12 for being used for placing riveting pipe is provided with 9b1, positioning hole 9b1, the lower surface of sleeve pipe is resisted against on positioning hole 9b1 bottom wall, The upper end of sleeve pipe is stretched out outside the 9b of location division.

As shown in Fig. 6, Fig. 7 and Fig. 8, guide groove 9a roof is provided with downwardly projecting limiting section 9c, has on tool rest 9 Open up to the blanking hole 9c1 of the upper surface of tool rest 9, blanking hole 9c1 from limiting section 9c lower surfaces and be connected with positioning hole 9b1, support The resigning hole 8a relative with blanking hole 9c1 is provided through on the roof of frame 8.Blanking hole 9c1 upper port is tapered and by upper It is gradually reduced under, the aperture of blanking hole 9c1 lower ports is identical with the minimum-value aperture of blanking hole 9c1 upper ports, positioning hole 9b1's Aperture is more than the maximum diameter of hole of blanking hole 9c1 upper ports.Shank body 11a inner end is U-shaped and formed with limit notch 11a2, limit Position portion 9c is located in limit notch 11a2, and blade 10 is connected to shank body 11a bottom and the part of blade 10 and is located at limit notch Below 11a2, when handle of a knife 11 slides along guide groove 9a, blanking hole 9c1 lower port can be opened or blocked to blade 10, and Limit notch 11a2 described in when blade 10 blocks blanking hole 9c1 lower port is stuck on limiting section 9c.

As shown in Fig. 2, Fig. 5, Fig. 9 and Figure 10, handle of a knife 11 also includes roller 11b, and shank body 11a outer end is U-shaped and shape Locating shaft 11c, locating shaft are provided between the two lateral walls at positioning recess 11a1 into having positioning recess 11a1, shank body 11a 11c both ends are stretched out outside shank body 11a both sides respectively, and rolling is arranged with the part that locating shaft 11c is located in positioning recess 11a1 Take turns 11b.Torsion spring 13 is respectively equipped between locating shaft 11c both ends and tool rest 9, one end of two torsion springs 13 bends an at least cast Into socket part 13a, socket part 13a is enclosed on corresponding to locating shaft 11c on one end, the end of the tool rest 9 residing for guide groove 9a one end Face is located at the both sides of handle of a knife 11 provided with two mounting holes 9d, two mounting hole 9d, and the other end of two torsion springs 13 is bent to form card Socket part 13b, Access Division 13b are caught in corresponding mounting hole 9d.The upper end of rack 5 is provided with inclined-plane 5a, and handle of a knife 11 is in torsion spring 13 Elastic force effect is lower to have the trend for stretching out that tool rest 9 is outer and makes roller 11b be resisted against on rack 5 all the time.Compared to using single bullet For spring, the both ends that locating shaft 11c is respectively acting on using the elastic force of two torsion springs 13 will be more when promoting handle of a knife 11 to slide Ground is stable.

Original state, roller 11b are resisted against under the spring-force driven dual of two torsion springs 13 on rack 5, and now blade 10 will Blanking hole 9c1 lower port is blocked, and riveting pipe is put into pipe sleeve 12, and the lower end of riveting pipe is located in blanking hole 9c1 and is resisted against On blade 10.Then motor 6 drives the rotational band carry-over bar 5 of travelling gear 7 to move down and punched, when rack 5 moves down When being in contact to roller 11b with the inclined-plane 5a on rack 5, roller 11b can move along inclined-plane 5a, now in the torsion of torsion spring 13 Make under effect handle of a knife 11 to stretch out tool rest 9 direction move, blade 10 with handle of a knife 11 move together and by under blanking hole 9c1 Port is gradually opened.After rack 5, which is displaced downwardly to, no longer to be contacted with roller 11b, blanking hole 9c1 lower port is fully opened, riveting The lower end of pipe will pass through blanking hole 9c1 and drop into support frame 8.

After punching terminates, motor 6 is inverted and moved up again with carry-over bar 5.Rack 5 is moved on rack 5 On inclined-plane 5a when being in contact with roller 11b, with the continuous rising of rack 5, inclined-plane 5a can squeezing roller 11b so that handle of a knife 11 overcome the elastic force of torsion spring 13 to act on and moved to the direction stretched into tool rest 9, and now blade 10 can be again to blanking hole 9c1's Lower port is close, and when the sidepiece of positive stop strip that handle of a knife 11 is moved on handle of a knife 11 and limiting section 9c leans blade 10 by riveting Pipe is cut off and again blocks blanking hole 9c1 lower port completely, and the riveting pipe being cut is dropped into support frame 8 and for pressing When use.So a whole Pipe Cutting job is just completed, when needing to be pressed with riveting pipe again next time, is repeated State Pipe Cutting action.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (6)

1. a kind of tube cutting mechanism of binder, binder includes frame (1) and is arranged in frame (1) and is carried out in binder The rack (5) that can be moved down during punching, tube cutting mechanism include support frame (8) and blade (10), described support frame (8) It is connected in frame (1), it is characterised in that tool rest (9), described tool rest (9) and branch are connected with the top of described support frame (8) Handle of a knife (11) is provided between support (8), blade (10) is connected with handle of a knife (11), and tool rest is provided through blanking hole on (9) (9c1), be provided through at the top of support frame (8) with the relative resigning hole (8a) of blanking hole (9c1), blade (10) is by blanking hole The lower port of (9c1) is blocked, and tool rest (9) is stretched out outside in described handle of a knife (11) outer end, and handle of a knife (11) outer end both sides are equipped with torsion spring (13), one end of two torsion springs (13) is acted on handle of a knife (11) and the other end of two torsion springs (13) is acted on tool rest (9), Handle of a knife (11) outer end is resisted against on rack (5) under the elastic force effect of torsion spring (13), and rack (5) upper end has inclined-plane (5a), and When rack (5) is displaced downwardly to when handle of a knife (11) outer end is in contact with inclined-plane (5a), handle of a knife (11) outer end can be in the effect of two torsion springs (13) It is lower to be moved to remote tool rest (9) direction and blade (10) is opened blanking hole (9c1).

2. the tube cutting mechanism of binder according to claim 1, it is characterised in that described handle of a knife (11) includes shank body (11a) and roller (11b), described shank body (11a) outer end is U-shaped and formed with positioning recess (11a1), and shank body (11a) is fixed Locating shaft (11c) is provided between the two lateral walls at position recess (11a1) place, shank body is stretched out at the both ends of locating shaft (11c) respectively Outside the both sides of (11a), the part that locating shaft (11c) is located in positioning recess (11a1) is arranged with roller (11b), roller (11b) It is resisted against on rack (5), one end of two torsion springs (13) is connected to corresponding to locating shaft (11c) on one end.

3. the tube cutting mechanism of binder according to claim 2, it is characterised in that one end of two torsion springs (13) is respectively provided with curved The socket part (13a) of the circle of song at least one, described socket part (13a) is enclosed on corresponding to locating shaft (11c) on one end.

4. the tube cutting mechanism of binder according to claim 3, it is characterised in that described tool rest (9) rectangular-blocklike, One end of described tool rest (9) is provided with two mounting holes (9d), and the other end of two torsion springs (13) is respectively provided with the Access Division of bending (13b), described Access Division (13b) are caught in corresponding mounting hole (9d).

5. the tube cutting mechanism of binder according to claim 4, it is characterised in that described shank body (11a) is in strip, Described tool rest (9) bottom is provided with is located at guide groove (9a) with shank body (11a) shape identical guide groove (9a), shank body (11a) Interior, one end of guide groove (9a) opens up to tool rest (9) one end for being provided with mounting hole (9d), and the outer end of described shank body (11a) is stretched Go out tool rest (9) outside.

6. the tube cutting mechanism of binder according to claim 5, it is characterised in that on the roof of described guide groove (9a) Provided with downwardly projecting limiting section (9c), the upper surface of described blanking hole (9c1) from tool rest (9) is opened up to limiting section (9c) Lower surface, described shank body (11a) inner U-shaped are simultaneously located at formed with limit notch (11a2), described limiting section (9c) In limit notch (11a2), described blade (10) is connected to the bottom of shank body (11a) and blade (10) is partly positioned at spacing recessed Below mouth (11a2), the limit notch (11a2) described in when blade (10) blocks the lower port of blanking hole (9c1) is stuck in limit In position portion (9c).