CN213647692U

CN213647692U - Pneumatic scissors that can reset

Info

Publication number: CN213647692U
Application number: CN202022028409.8U
Authority: CN
Inventors: 杭达雷
Original assignee: Ma'anshan Zhengli Machinery Blade Manufacturing Co ltd
Current assignee: Ma'anshan Zhengli Machinery Blade Manufacturing Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-07-09
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a resettable pneumatic scissors, belong to the pneumatic shearing field, including the cylinder, the scissors, the curb plate, the fixed block, coupling assembling and reset piece, the curb plate can be dismantled with the fixed block and be connected, the fixed block is installed in one side of the output of cylinder, the curb plate is installed in the both sides of fixed block, coupling assembling includes movable block and connecting piece, the scissors includes upper blade and bottom knife, the movable block rotates with the corresponding one end of connecting piece to be connected, upper blade and bottom knife rotate with the other end of connecting piece respectively to be connected, upper blade, bottom knife and the connecting piece of installing on the movable block constitute four-bar linkage, the output of cylinder passes the fixed block and is fixedly connected with the movable block, the output of cylinder removes the opening and shutting that drives the scissors, reset piece; the utility model provides an excessively use scissors, when shearing metal surface has viscidity or itself has viscidity material, the edge of a knife that produces opens and shuts and seals, the scissors can't open the scheduling problem.

Description

Pneumatic scissors that can reset

Technical Field

The utility model belongs to pneumatic shearing field, concretely relates to pneumatic scissors that can reset.

Background

The scissors are double-edge tools for cutting sheet or linear objects such as cloth, paper, steel plates, ropes, round steel and the like, the two edges are staggered and can be opened and closed, the scissors have wide application, the scissors can be easily solved when the tools such as knives, shovels and the like do not apply force, and the scissors become the tools which are not negligibly deficient in daily production and life of people.

The pneumatic scissors are also called pneumatic wire cutting pliers, and the power source is gas in an air compressor, so the pneumatic scissors are called as pneumatic scissors, the gripping force applied to the scissors by a person is saved, and the power generated by using compressed air is much larger than that of manpower.

When the pneumatic scissors in the prior art are used for processing different materials, different positions and different accuracies are needed, high temperature is generated for viscous materials or high-speed operation, and when partial materials are melted, viscous substances generated for a knife edge influence the shearing efficiency of the scissors.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: when the scissors are excessively used and the metal surface is cut to be sticky or the material with the sticky property is cut, the generated knife edge is opened, closed and the scissors cannot be opened.

In order to solve the technical problems, the inventor finds the technical scheme of the utility model through practice and summary, the utility model discloses a resettable pneumatic scissors, which comprises a cylinder, scissors, a side plate, a fixed block, a connecting assembly and a resetting piece, wherein the side plate is detachably connected with the fixed block, the fixed block is arranged on one side of the output end of the cylinder, and the side plate is arranged on two sides of the fixed block;

the connecting assembly comprises a moving block and a connecting piece, the scissors comprise an upper blade and a lower blade, the moving block is installed on one side, back to the air cylinder, of the fixed block, the moving block is respectively and rotatably connected with the connecting piece along the radial horizontal two ends of the output end of the air cylinder, the upper blade and the lower blade are respectively and rotatably connected with the other end of the connecting piece, the upper blade, the lower blade and the connecting piece installed on the moving block form a four-bar mechanism, the output end of the air cylinder penetrates through the fixed block and is fixedly connected with the moving block, and the output end of the air cylinder moves to drive;

the piece that resets is installed on the curb plate, the one end that resets is located the curb plate, the one end that resets is suitable for the butt connecting piece, the other end that resets is located outside the curb plate, the piece that resets is suitable for the dead connecting piece of card that resets.

The side plate comprises an upper plate and a lower plate, the upper plate and the lower plate are symmetrically distributed about the axial direction of the output end of the air cylinder, the four-bar linkage mechanism is located between the upper plate and the lower plate, connecting holes are formed in the upper plate and the lower plate, threaded holes are formed in the fixing blocks, the fixing blocks are fixedly connected with the cylinder body of the air cylinder, the upper plate and the lower plate are installed on the two longitudinal sides of the fixing blocks, and the upper plate and the lower plate are detachably connected with the fixing blocks.

The connecting piece comprises a pin, an upper clamping piece and a lower clamping piece, connecting holes are formed in the upper clamping piece and the lower clamping piece, two ends of the pin are respectively connected with the upper clamping piece and the lower clamping piece in a rotating mode, one ends of the upper blade and the lower blade corresponding to each other are arranged on the pin, and the pin is suitable for pushing the upper blade and the lower blade to rotate in a crossed mode and shear;

and the joint of the upper clamping piece and the lower clamping piece with the pin is respectively provided with a clamp spring pad, and the clamp spring pads are suitable for limiting the upper clamping piece to move upwards and limiting the lower clamping piece to move downwards.

The upper plate and the lower plate are provided with locking holes which are stepped holes, and first screws are installed in the locking holes and are suitable for being connected with scissors and locked.

And a spacer bush is arranged between the upper clamping piece and the lower clamping piece, the spacer bush is arranged on the stud, and the sum of the distances between the spacer bush and the upper clamping piece and the distance between the spacer bush and the lower clamping piece is equal to the height of the moving block.

The connecting assembly further comprises an elastic piece, the bottom of the elastic piece is arranged in the first annular groove, the top of the elastic piece is abutted against the head of the first screw, and the elastic piece is suitable for extruding the gasket to abut against the scissors;

the locking hole is a stepped hole and is suitable for limiting the first screw to be integrally screwed in.

The piece that resets includes support column and fixed plate, the second ring groove has been seted up on the support column, the second ring inslot is installed and is rotated the piece, the fixed plate is installed on the support column, rotate and install the torsional spring between piece and the fixed plate, the torsional spring is suitable for the fixed initial position that rotates the piece.

The rotation piece rotates along the second circular groove, the fixed plate is the spill, fixed plate and support column fixed connection, the rotation piece includes first dwang, second dwang and connecting cylinder, first dwang and second dwang respectively with connecting cylinder fixed connection, set up the cavity in the connecting cylinder, the one end and the fixed plate fixed connection of torsional spring, the other end and the second dwang fixed connection of torsional spring, first dwang is located between upper plate and the hypoplastron, first dwang is suitable for butt joint upper clamping piece or lower clamping piece, the second dwang is located outside upper plate or the hypoplastron.

The knife face of scissors is concave edge, the work knife face of scissors is the arc, the arc is 0.2 to 0.8 degree at the contained angle radian on the central line of scissors, and is specific, and the knife face is cuted in work has the radian, and the cutting edge no longer contacts after cuting, and the wearing and tearing of cutting edge are less, and secondly, the cutting edge of two sets of blades has the angle of slope for it is better to cut the effect.

Compared with the prior art, the utility model discloses can obtain following technological effect:

the utility model adopts the four-bar linkage mechanism and the air cylinder to connect and realize the opening and closing of the scissors, and has simple structure and convenient maintenance; secondly, the mode of combining the elastic piece, the gasket and the first screw is adopted, so that the jointing distance between the upper blade and the lower blade can be adjusted according to the actual situation according to the elastic piece with smaller elasticity under the locking condition, and the elastic piece ensures that the blades cannot be opened and closed due to the fact that the distance between the upper blade and the lower blade is too short when the upper blade and the lower blade work; then, according to the requirement of different materials and precision, design the piece that resets, the first pivot pole on the piece that resets is through rotating striking clamping piece, solves to need the edge of a knife viscidity to seal, the problem that can't open and shut, and because the torsional spring has quick reset ability, can not have the influence to the flexible of cylinder.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a block diagram of the present invention;

fig. 2 is an exploded view of fig. 1 of the present invention;

FIG. 3 is a schematic view of the pin of the present invention;

fig. 4 is a schematic view of the lower blade of the present invention;

fig. 5 is a front view of the lower blade of the present invention at the tip;

fig. 6 is a cross-sectional view of a first screw installation of the present invention;

fig. 7 is a structural view of a reset member of the present invention;

fig. 8 is a cross-sectional view of the restoring member of the present invention;

fig. 9 is a structural view of a rotor according to the present invention.

In the figure: 1. a cylinder; 2. scissors (21, lower blade; 22, upper blade; etc.); 3. a side plate (31, an upper plate; 32, a lower plate); 4. a fixed block; 5. a moving block; 6. a connecting piece (61, a pin; 62, an upper clamping piece; 63, a lower clamping piece; 64, a spacer bush; 65, a clamp spring pad); 7. a first screw; 8. a gasket; 9. a support pillar; 10. an elastic member; 11. a fixing plate; 12. a rotating member (121, a first rotating rod; 122, a second rotating rod; 123, a connecting cylinder); 13. a torsion spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 to 9, a pair of resettable pneumatic scissors comprises a cylinder 1 and scissors 2, and further comprises a side plate 3, a fixed block 4, a connecting assembly and a resetting member, wherein the side plate 3 is detachably connected with the fixed block 4, the fixed block 4 is installed on one side of an output end of the cylinder 1, the side plate 3 is installed on two sides of the fixed block 4, the connecting assembly comprises a moving block 5 and a connecting member 6, the scissors 2 comprises an upper blade 22 and a lower blade 21, the moving block 5 is rotatably connected with one corresponding end of the connecting member 6, the upper blade 22 and the lower blade 21 are respectively rotatably connected with the other end of the connecting member 6, the upper blade 22, the lower blade 21 and the connecting member 6 installed on the moving block 5 form a four-bar linkage mechanism, the output end of the cylinder 1 penetrates through the fixed block 4 and;

the connecting piece 6 comprises a pin 61 and a clamping piece, and the pin 61 is connected with the clamping piece;

reset the piece and install on curb plate 3, reset the one end of piece and be located curb plate 3, reset the one end of piece and be suitable for butt connecting piece 6, reset the other end of piece and be located outside curb plate 3, reset the piece and be suitable for the dead connecting piece 6 cylinder 1 of card that resets and can use CDU20-10D type and the substitutable type cylinder of similar effect.

The side plate 3 comprises an upper plate 31 and a lower plate 32, the upper plate 31 and the lower plate 32 are symmetrically distributed about the axial direction of the output end of the cylinder 1, the four-bar linkage is positioned between the upper plate 31 and the lower plate 32, connecting holes are formed in the upper plate 31 and the lower plate 32, threaded holes are formed in the fixing block 4, the fixing block 4 is in threaded connection with the cylinder body of the cylinder 1, the upper plate 31 and the lower plate 32 are installed on two sides of the fixing block 4, and the upper plate 31 and the lower plate 32 are in threaded connection with the fixing block 4.

Locking holes are formed in the upper plate 31 and the lower plate 32 and are stepped holes, first screws 7 are mounted in the locking holes, and the first screws 7 are suitable for being connected with the scissors 2 and locked;

the scissors 2 and the upper plate 31 and the lower plate 32 are respectively provided with a gasket 8, the gasket 8 is internally provided with a through hole, the head of the first screw 7 is positioned on the step table surface, and the distance between the two groups of gaskets 8 is matched with the height of the fixing block 4.

The clamping piece comprises an upper clamping piece 62 and a lower clamping piece 63, connecting holes are formed in the upper clamping piece 62 and the lower clamping piece 63, two ends of a pin 61 are fixedly connected with the upper clamping piece 62 and the lower clamping piece 63 respectively, one corresponding ends of the upper blade 22 and the lower blade 21 are mounted on the pin 61, and the pin 61 is suitable for pushing the upper blade 22 and the lower blade 21 to rotate in a crossed mode and shear;

clamping spring pads 65 are respectively arranged at the connecting positions of the upper clamping piece 62, the lower clamping piece 63 and the pin 61, and bayonets in the clamping spring pads 65 are suitable for limiting the upper clamping piece 62 to move upwards and limiting the lower clamping piece 63 to move downwards.

A spacer 64 is arranged between the upper clamping piece 62 and the lower clamping piece 63, the spacer 64 is arranged on the pin 61, and the sum of the distances between the spacer 65 and the upper clamping piece 62 and the lower clamping piece 63 is equal to the height of the moving block 5.

First ring groove has been seted up to one side that packing ring 8 back to scissors 2, and coupling assembling still includes elastic component 10, and the bottom of elastic component 10 is installed at first ring inslot, and the top of elastic component 10 and the head butt of first screw 7, elastic component 10 are suitable for 8 butt scissors 2 of extrusion packing ring.

The piece that resets includes support column 9 and fixed plate 11, has seted up the second ring groove on the support column 9, and the second ring inslot is installed and is rotated piece 12, and fixed plate 11 is installed on support column 9, rotates and installs torsional spring 13 between piece 12 and the fixed plate 11, and torsional spring 13 is suitable for the fixed initial position who rotates piece 12.

The rotating part 12 rotates along the second circular groove, the fixing plate 11 is concave, the fixing plate 11 is welded with the supporting column 9, the rotating part 12 comprises a first rotating rod 121, a second rotating rod 122 and a connecting cylinder 123, the first rotating rod 121 and the second rotating rod 122 are respectively welded with the connecting cylinder 123, a cavity is formed in the connecting cylinder 123, one end of the torsion spring 13 is welded with the fixing plate 11, the other end of the torsion spring 13 is welded with the second rotating rod 122, the first rotating rod 121 is located between the upper plate 31 and the lower plate 32, the first rotating rod 121 is suitable for abutting against the lower clamping piece 63, and the second rotating rod 122 is located outside the lower plate 32.

The knife surfaces of the scissors 2 are both concave edges, the working knife surfaces of the scissors 2 are arc-shaped, the radian of an included angle of the arc on the central line of the scissors 2 is 0.5-0.8 degrees, specifically, the lower blade 21 is concave downwards from the outward central line, and the upper blade 22 is convex outwards from the outward central line;

the blade is more tightly attached, and the efficiency of the scissors 2 during processing is higher.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A resettable pneumatic scissors comprising a cylinder (1) and scissors (2), characterized in that: the cylinder is characterized by further comprising a side plate (3), a fixed block (4), a connecting assembly and a resetting piece, wherein the side plate (3) is detachably connected with the fixed block (4), the fixed block (4) is installed on one side of the output end of the cylinder (1), and the side plate (3) is installed on two sides of the fixed block (4);

the connecting assembly comprises a moving block (5) and a connecting piece (6), the scissors (2) comprise an upper blade (22) and a lower blade (21), the moving block (5) is installed on one side, back to the air cylinder (1), of the fixing block (4), the moving block (5) is rotatably connected with the connecting piece (6) along the radial horizontal two ends of the output end of the air cylinder (1), the upper blade (22) and the lower blade (21) are rotatably connected with the other end of the connecting piece (6) respectively, the upper blade (22), the lower blade (21) and the connecting piece (6) installed on the moving block (5) form a four-link mechanism, the output end of the air cylinder (1) penetrates through the fixing block (4) and is fixedly connected with the moving block (5), and the output end of the air cylinder (1) moves to drive the scissors (2) to open and close;

reset the piece and install on curb plate (3), the one end that resets is located curb plate (3), the one end that resets is suitable for butt connecting piece (6), the other end that resets is located curb plate (3) outside, the piece that resets is suitable for the dead connecting piece of card (6) that resets.

2. A resettable pneumatic scissors as claimed in claim 1, wherein: the side plate (3) comprises an upper plate (31) and a lower plate (32), the upper plate (31) and the lower plate (32) are symmetrically distributed about the axial direction of the output end of the air cylinder (1), the four-bar linkage mechanism is located between the upper plate (31) and the lower plate (32), connecting holes are formed in the upper plate (31) and the lower plate (32), threaded holes are formed in the fixing block (4), the fixing block (4) is fixedly connected with a cylinder body of the air cylinder (1), the upper plate (31) and the lower plate (32) are installed on the two longitudinal sides of the fixing block (4), and the upper plate (31) and the lower plate (32) are detachably connected with the fixing block (4).

3. A resettable pneumatic scissors as claimed in claim 1, wherein: the connecting piece (6) comprises a pin (61), an upper clamping piece (62) and a lower clamping piece (63), connecting holes are formed in the upper clamping piece (62) and the lower clamping piece (63), two ends of the pin (61) are respectively connected with the upper clamping piece (62) and the lower clamping piece (63) in a rotating mode, corresponding ends of the upper blade (22) and the lower blade (21) are installed on the pin (61), and the pin (61) is suitable for pushing the upper blade (22) and the lower blade (21) to rotate in a crossed mode and shear;

and the upper clamping piece (62) and the lower clamping piece (63) are connected with the pin (61) and are respectively provided with a clamp spring pad (65), and the clamp spring pads (65) are suitable for limiting the upper clamping piece (62) to move upwards and limiting the lower clamping piece (63) to move downwards.

4. A resettable pneumatic scissors as claimed in claim 2, wherein: all set up the locking hole on upper plate (31) and hypoplastron (32), the locking hole is the shoulder hole, install first screw (7) in the locking hole, first screw (7) are suitable for connecting scissors (2) and lock.

5. A resettable pneumatic scissors as claimed in claim 3, wherein: a spacer bush (64) is arranged between the upper clamping piece (62) and the lower clamping piece (63), the spacer bush (64) is arranged on the pin (61), and the sum of the distances between the spacer bush (64) and the upper clamping piece (62) and the distance between the spacer bush (64) and the lower clamping piece (63) are equal to the height of the moving block (5).

6. A resettable pneumatic scissors as claimed in claim 4, wherein: a gasket (8) is arranged between the scissors (2) and the upper plate (31) and the lower plate (32) respectively, a through hole is formed in the gasket (8), a first circular groove is formed in one side, back to the scissors (2), of the gasket (8), the connecting assembly further comprises an elastic piece (10), the bottom of the elastic piece (10) is arranged in the first circular groove, the top of the elastic piece (10) is abutted to the head of the first screw (7), and the elastic piece (10) is suitable for extruding the gasket (8) to abut against the scissors (2);

the locking hole is a stepped hole and is suitable for limiting the first screw (7) to be integrally screwed in.

7. A resettable pneumatic scissors as claimed in claim 6, wherein: reset the piece and include support column (9) and fixed plate (11), the second ring groove has been seted up on support column (9), second ring inslot is installed and is rotated piece (12), install on support column (9) fixed plate (11), install torsional spring (13) between rotating piece (12) and fixed plate (11), torsional spring (13) are suitable for the fixed initial position who rotates piece (12).

8. A resettable pneumatic scissors as claimed in claim 7, wherein: the rotating part (12) rotates along the second circular groove, the fixed plate (11) is concave, the fixed plate (11) is fixedly connected with the supporting column (9), the rotating piece (12) comprises a first rotating rod (121), a second rotating rod (122) and a connecting cylinder (123), the first rotating rod (121) and the second rotating rod (122) are respectively and fixedly connected with the connecting cylinder (123), a cavity is arranged in the connecting cylinder (123), one end of the torsion spring (13) is fixedly connected with the fixing plate (11), the other end of the torsion spring (13) is fixedly connected with the second rotating rod (122), the first rotation lever (121) is located between the upper plate (31) and the lower plate (32), the first rotating rod (121) is suitable for abutting against the upper clamping piece (62) or the lower clamping piece (63), the second rotating rod (122) is positioned outside the upper plate (31) or the lower plate (32).

9. A pneumatic scissors according to claim 1 wherein: the knife face of the scissors (2) is a concave edge, the working knife face of the scissors (2) is arc-shaped, and the radian of an included angle of the arc on the central line of the scissors (2) is 0.2-0.8 degrees.