CN209151650U

CN209151650U - Scissor cut structure

Info

Publication number: CN209151650U
Application number: CN201822108630.7U
Authority: CN
Inventors: 雷利锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2019-07-26
Anticipated expiration: 2028-12-14

Abstract

The utility model discloses a kind of scissor cut structures, including stationary knife, middle part is hinged at the left part of the stationary knife or the moving knife at middle part by articulated shaft, wherein, the right part upper side edge of the stationary knife has lower blade, the right part lower side of the moving knife has upper knife edge, and the left part of the moving knife has the pressure handle extended to the left, simultaneously, torsional spring is arranged on the articulated shaft, the torsional spring makes the upper knife edge of the moving knife with the trend of the lower blade far from the stationary knife, the left part of the stationary knife or left are fixed with rotary shaft, the rotary shaft is equipped with an eccentric cam, the lower side of the eccentric cam and the pressure handle matches.The utility model has the advantages that: structure is simple, is not necessarily to reversion.

Description

Scissor cut structure

Technical field

The present invention relates to cutting implement technical fields, more particularly, to a kind of scissor cut structure.

Background technique

In the equipment of the automatic jobs such as shearing branch, the scissors that can back and forth form shear action is often required to use. But common scissors or structure it is complex or need and the scissors cooperation reciprocator inverted, it is more numerous It is trivial, it is not easy to operate.

Summary of the invention

In view of the deficiency of the prior art, the object of the present invention is to provide a kind of scissor cut structure, it has The characteristics of structure is simple, without inverting.

To achieve the goals above, the technical scheme adopted by the invention is that: scissor cut structure, including stationary knife, middle part The left part of the stationary knife or the moving knife at middle part are hinged at by articulated shaft, wherein the right part upper side edge of the stationary knife has lower blade, is somebody's turn to do The right part lower side of moving knife has upper knife edge, and the left part of the moving knife has the pressure handle extended to the left, meanwhile, it is covered on the articulated shaft Equipped with torsional spring, the torsional spring make the moving knife upper knife edge have far from the stationary knife lower blade trend, the left part of the stationary knife or Left is fixed with rotary shaft, which is equipped with an eccentric cam, the lower side matching of the eccentric cam and the pressure handle.

It is also arranged with gear in the rotary shaft, the gear and the eccentric cam are fixed together.

After adopting the above structure, that the invention has the advantages that compared with the prior art: structures is simple, without reversion. When in use, stationary knife is in stationary state to scissor cut structure of the invention, and gear rotates counterclockwise from starting point, drives eccentric Cam also rotates, since the lower side of pressure handle is close to the edge of eccentric cam, so decline the upper knife edge of moving knife, eccentric convex When wheel rotates to highest point, upper knife edge and lower blade complete shear action.Then, gear drives eccentric cam to continue to rotate, Under the action of torsional spring, pressure handle moves down therewith, and upper knife edge moves up, and moving knife resets.It loops back and forth like this, without carrying out In the case that component inverts, shearing in cycles is realized.Exterior power is received due to using gear, and by eccentric convex Wheel drive moving knife, it is ensured that shearing force is larger, is not only suitable for automation shearing branch etc., it is more hard can also to shear metal strip etc. Object.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples:

Fig. 1 is the main view of the scissor cut structure in original state of the embodiment of the present invention；

Fig. 2 is the overhead sectional view of Fig. 1；

Fig. 3 is main view of the scissor cut structure of the embodiment of the present invention when implementing shearing.

Specific embodiment

Embodiment, as shown in Fig. 1 to Fig. 3: scissor cut structure, including stationary knife 10, middle part are hinged at by articulated shaft 30 The left part of the stationary knife 10 or the moving knife 20 at middle part, the stationary knife 10 are in stationary state.For example, the stationary knife 10 and the moving knife 20 are in " X " type is hinged together.It should be noted that so-called fixation herein, generally refer to the stationary knife 10 and following rotary shafts 50 In relatively fixed state.Wherein, the right part upper side edge of the stationary knife 10 has the right part lower side tool of lower blade 11, the moving knife 20 There is upper knife edge 21, and the left part of the moving knife 20 has the pressure handle 22 extended to the left.Meanwhile torsional spring is arranged on the articulated shaft 30 40, which makes the upper knife edge 21 of the moving knife 20 with the trend of the lower blade 11 far from the stationary knife 10.For example, the torsional spring 40 Both ends be connected to the right part of the stationary knife 10 and the right part of the moving knife 20.

The left part of the stationary knife 10 or left are fixed with rotary shaft 50.That is, the stationary knife 10 and the rotary shaft 50 are in relatively solid Determine state.The rotary shaft 50 is equipped with an eccentric cam 60, the lower side matching of the eccentric cam 60 and the pressure handle 22.That is, should The lower side of pressure handle 22 is closely attached on the circumference side of the eccentric cam 60, once the eccentric cam 60 rotates, the bias The circumference side of cam 60 i.e. the pressure handle 22 can be promoted to move up and down, make the upper knife edge 21 move up and down and the lower blade 11 not It is disconnected to form shear action.

Optimization:

It is also arranged with gear 70 in the rotary shaft 50, the gear 70 and the eccentric cam 60 are fixed together.For example, the tooth Wheel 70 and the eccentric cam 60 are fixed together by least two screw, so that the eccentric cam 60 can be with the gear 70 It is rotated, and the gear 70 is used for and other connect dynamic gear and are meshed, in order to receive extraneous torque.In this way, Not only torque transmitting is more smooth and high-efficient, is capable of forming larger shearing force.

The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations Technical field, be included within the scope of the present invention.

Claims

1. scissor cut structure, including stationary knife (10), middle part by articulated shaft (30) be hinged at the stationary knife (10) left part or in The moving knife (20) in portion, wherein the right part upper side edge of the stationary knife (10) has the right part lower side of lower blade (11), the moving knife (20) With upper knife edge (21), and the left part of the moving knife (20) has the pressure handle (22) extended to the left, meanwhile, it is covered on the articulated shaft (30) Equipped with torsional spring (40), which makes the upper knife edge (21) of the moving knife (20) have the lower blade (11) far from the stationary knife (10) Trend, it is characterised in that: the left part of the stationary knife (10) or left are fixed with rotary shaft (50), which is equipped with The lower side of one eccentric cam (60), the eccentric cam (60) and the pressure handle (22) matches.

2. scissor cut structure according to claim 1, it is characterised in that: be also arranged with gear on the rotary shaft (50) (70), the gear (70) and the eccentric cam (60) are fixed together.