CN216067704U

CN216067704U - Device is cut to silica gel protection film with structure is prevented partially in location

Info

Publication number: CN216067704U
Application number: CN202120246249.6U
Authority: CN
Inventors: 贺洪文; 徐万志
Original assignee: Guangdong Weike New Material Co ltd
Current assignee: Guangdong Weike New Material Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2022-03-18
Anticipated expiration: 2031-01-28

Abstract

The utility model relates to the technical field of protective film production, in particular to a silica gel protective film slitting device with a positioning anti-deviation structure, which comprises a top plate, wherein four corners of the bottom end of the top plate are fixedly provided with supporting legs, the lower parts of the inner sides of the supporting legs are fixedly provided with side plates, conveying rollers are movably arranged between the front adjacent side plates and the rear adjacent side plates together, the two conveying rollers are connected through a conveying belt, and a motor is fixedly arranged on the front side of the side plate positioned on the left front side. Is worthy of popularization and application.

Description

Device is cut to silica gel protection film with structure is prevented partially in location

Technical Field

The utility model relates to the technical field of production of protective films, in particular to a silica gel protective film slitting device with a positioning anti-deviation structure.

Background

The protective film can be divided into a digital product protective film, an automobile protective film, a household protective film, a food fresh-keeping protective film and the like according to the application. With the popularization of digital products such as mobile phones in China, the protective film has gradually become a general name of the screen protective film.

The silica gel protection film belongs to one type of protection film, need cut it in the production process of silica gel protection film, consequently need use and cut the device, the device is prevented partially poorly to the location of protection film to current cutting, thereby it cuts to make the not hard up condition influence of protection film easily appear when the cutting, and be not convenient for carry out the fixed length cutting, it is fixed to the protection film cancellation to need the manual work after the cutting is accomplished simultaneously, waste time and energy, influence production efficiency, for this reason we propose one kind have the location prevent partially the silica gel protection film of structure cut the device and solve this type of problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a silica gel protective film slitting device with a positioning deviation-preventing structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the design is a silica gel protective film cutting device with a positioning deviation-preventing structure, which comprises a top plate, wherein supporting legs are fixedly arranged at four corners of the bottom of the top plate, side plates are fixedly arranged at the lower parts of the inner sides of the supporting legs, conveying rollers are movably arranged between the front and the back adjacent side plates together, the two conveying rollers are connected through a conveying belt, a motor is fixedly arranged at the front side of the side plate positioned at the front left, an output shaft of the motor penetrates through the side plates to be fixedly connected with the front ends of the conveying rollers, a carrier plate is fixedly arranged at the top end of the conveying belt, a first driving rod is fixedly arranged in the middle of the top end of the carrier plate, mounting plates are fixedly arranged at the front and the back of the top plate, a cavity is arranged inside the mounting plates, a moving block is movably arranged inside the mounting plates, a first spring is fixedly arranged at the left side of the moving block, and a first movable opening is arranged at the bottom end of the mounting plates, a driving frame is fixedly mounted at the bottom ends of the two moving blocks together, a second driving rod is fixedly mounted in the middle of the bottom ends of the driving frame, a second movable opening is formed in the top end of the mounting plate, a mounting frame is fixedly mounted at the top ends of the two moving blocks together, a first fixing plate is fixedly mounted below the inside of the mounting frame, a pressing rod vertically penetrates through the middle of the top end of the mounting frame, the bottom end of the pressing rod penetrates through the mounting frame and extends to the inside of the mounting frame, a second fixing plate is fixedly mounted in the mounting frame, rubber pads are arranged on the opposite sides of the second fixing plate and the first fixing plate, a second spring is sleeved outside the pressing rod and between the second fixing plate and the mounting frame, two ends of the second spring are fixedly connected with the mounting frame and the second fixing plate respectively, clamping strips are fixedly mounted on the upper portions of the front side and the rear side of the pressing rod, and clamping devices are arranged on the front side and the rear side of the top end of the mounting frame, the utility model discloses a cutting tool, including roof, cylinder, knife rest, cutter, cutting tool, stand, top left side symmetry fixed mounting of roof has the stand, two be the front and back distribution between the stand, the horizontal fixed mounting in right side upper portion of stand has the inserted bar, the top right side fixed mounting of roof has the carrier, the top middle part fixed mounting of carrier has the cylinder, the cylinder pole bottom of cylinder passes the carrier and extends to its inside fixed mounting and has the knife rest, the bottom of knife rest is equipped with the cutter, the top right side of roof be equipped with cutter assorted sword groove, the mouth that drops has been seted up on the top of roof, both sides all are equipped with the scale strip around the top of roof.

Preferably, the latch device is including blocking the shell), card shell and mounting bracket top fixed connection, the inside movable mounting of card shell has the kelly, the both ends of kelly all pass the card shell and extend to its outside, the one end fixed mounting that the depression bar was kept away from to the kelly has the framework, the front side inner wall fixed mounting of framework has the sloping block, the fixed cover in outside of kelly is equipped with the clamp plate, the outside of kelly just is located the clamp plate and blocks and overlap and be equipped with the third spring between the shell.

Preferably, the right end of the inserted link is provided with an inclined surface.

Preferably, one end of the clamping strip, which is far away from the pressing rod, is provided with an inclined plane in a downward direction, and one end of the clamping rod, which is close to the pressing rod, is provided with an inclined plane in an upward direction.

Preferably, the opposite ends of the first driving rod and the second driving rod are both provided with round ends.

The utility model provides a silica gel protective film slitting device with a positioning anti-deviation structure, which has the beneficial effects that:

1. when the protective film clamp is used, one end of the protective film passes through the carrier frame and is placed between the second fixing plate and the first fixing plate, the pressure rod is pressed downwards, when the pressure rod is pressed downwards, the pressure rod drives the second fixing plate to descend so that the second fixing plate is abutted against the first fixing plate so as to clamp and fix the protective film, the friction force between the first fixing plate, the second fixing plate and the protective film is increased through the arrangement of the rubber pad so that the protective film is fixed more stably, the second spring is stretched to deform the second fixing plate to generate acting force when the second fixing plate descends, the clamping strip is driven to descend when the pressure rod descends, when the clamping strip is contacted with the clamping rod, the clamping rod is relatively slid so as to extrude the clamping rod to contract towards the inside of the clamping shell, meanwhile, the clamping rod drives the pressure plate to move along with the clamping rod so as to compress the third spring to generate acting force, when the clamping strip moves to the lower part of the clamping rod, at the moment, the third spring releases acting force to drive the pressing plate to reset, so that the clamping rod is reset, the clamping strip is fixed, the pressing rod is fixed, the second fixing plate is fixed, the protective film is positioned through extrusion of the second fixing plate and the first fixing plate, and the protective film is prevented from deviating during cutting;

2. the utility model realizes the rotation of the conveyor belt by starting the motor to ensure that the output shaft of the motor positively rotates to drive the conveyor roller connected with the motor to rotate, so as to drive the support plate and the first driving rod to move leftwards, the first driving rod drives the second driving rod to move therewith and further drives the driving frame to move therewith, the driving frame drives the moving block to move leftwards so as to drive the mounting frame to move therewith, so that the pressing rod, the second fixing plate and the first fixing plate move therewith and further drive the protective film to move therewith, in the process, the moving block compresses the first spring to deform the first spring to generate acting force, the length of the protective film can be read according to the scale bar, after the protective film is stretched to a proper length, the motor is turned off to stop the conveyor belt to move, the protective film is at the required length, the air cylinder is started to enable the air cylinder rod to descend to drive the cutter rest to descend, the descending of the cutter is matched with the cutter groove to cut the protective film, and the fixed-length cutting of the protective film is achieved;

3. after the cutting is finished, the motor is started again to enable the output shaft of the motor to rotate forwardly to drive the conveying roller to rotate continuously to achieve continuous movement of the conveying belt, the mounting rack moves leftwards continuously to achieve subsequent movement of the frame body, when the frame body moves to the inner oblique block and is contacted with the inserted rod, the oblique block moves towards the direction far away from the pressure rod through the arrangement of the oblique face to drive the frame body to move along with the oblique block, the frame body moves along with the inclined block, the clamping rod is enabled to leave the clamping strip and cancel fixation of the clamping strip, in the process, the third spring is in a compressed state, the second spring releases acting force to drive the second fixing plate to ascend, the pressure rod ascends to achieve ascending of the clamping strip, the clamping strip is located above the clamping rod, at the moment, fixation of the protective film is cancelled, the protective film falls onto the conveying belt through the falling port and finally moves to the left end of the conveying belt along with the conveying belt to achieve collecting of the clamping strip, and the frame body moves for a certain distance along with the inserted rod along with the continuous movement of the conveying belt, when the frame body leaves the inserted link, the third spring releases acting force to reset the pressing plate to reset the clamping rod, and finally the mounting frame resets, so that fixed-length cutting of the protective film and automatic removal of the protective film are realized;

the automatic positioning device can realize the positioning deviation prevention of the protective film, avoid the deviation and looseness of the protective film in the cutting process, ensure the smooth operation of the cutting process, facilitate the fixed-length cutting of the protective film, meet the production requirement, and simultaneously realize the automatic positioning cancellation of the cut protective film, so that the protective film is convenient to take down and collect, the production efficiency is improved, and the automatic positioning device is worthy of popularization and use.

Drawings

Fig. 1 is a schematic structural view of a silica gel protective film slitting device with a positioning anti-deviation structure according to the present invention;

fig. 2 is a schematic right sectional structural view of a silica gel protective film slitting device with a positioning anti-deviation structure according to the present invention;

fig. 3 is a schematic left-side sectional structural view of a silica gel protective film slitting device with a positioning anti-deviation structure according to the present invention;

fig. 4 is a schematic top view of a cutting device for a silica gel protective film with a positioning anti-deviation structure according to the present invention;

FIG. 5 is a schematic top sectional view of the latch according to the present invention.

In the figure: the device comprises a top plate 1, supporting legs 2, side plates 3, a conveying roller 4, a motor 5, a carrier plate 6, a first driving rod 7, a mounting plate 8, a moving block 9, a first spring 10, a driving frame 11, a second driving rod 12, a mounting frame 13, a first fixing plate 14, a pressure rod 15, a second fixing plate 16, a second spring 17, a clamping strip 18, a clamping device 19, a clamping shell 191, a clamping rod 192, a frame body 193, an inclined block 194, a pressure plate 195, a third spring 196, an upright post 20, an inserted rod 21, a carrier frame 22, an air cylinder 23, a knife rest 24, a knife groove 25 and a scale bar 26.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a silica gel protective film slitting device with a positioning anti-deviation structure comprises a top plate 1, wherein supporting legs 2 are fixedly mounted at four corners of the bottom end of the top plate 1, side plates 3 are fixedly mounted at the lower parts of the inner sides of the supporting legs 2, conveying rollers 4 are movably mounted between the front and rear adjacent side plates 3 together, the two conveying rollers 4 are connected through a conveying belt, a motor 5 is fixedly mounted at the front side of the side plate 3 positioned at the left front, an output shaft of the motor 5 penetrates through the side plates 3 to be fixedly connected with the front ends of the conveying rollers 4, a carrier plate 6 is fixedly mounted at the top end of the conveying belt, a first driving rod 7 is fixedly mounted in the middle part of the top end of the carrier plate 6, mounting plates 8 are fixedly mounted at the front and rear sides of the top plate 1, a cavity is arranged in each mounting plate 8, a moving block 9 is movably mounted in the mounting plate 8, and a first spring 10 is fixedly mounted at the left side of the moving block 9, first movable opening has been seted up to the bottom of mounting panel 8, and the common fixed mounting in bottom of two movable blocks 9 has a drive frame 11, and the bottom middle part fixed mounting of drive frame 11 has a second actuating lever 12, and the relative one end of first actuating lever 7 and second actuating lever 12 is the round end setting for the relative one end of the first actuating lever 7 of being convenient for and second actuating lever 12 produces and slides, makes the separation of the first actuating lever 7 of being convenient for and second actuating lever 12.

The top end of the mounting plate 8 is provided with a second movable opening, the top ends of the two moving blocks 9 are jointly and fixedly provided with a mounting frame 13, a first fixing plate 14 is fixedly arranged below the inner part of the mounting frame 13, a pressing rod 15 is vertically inserted in the middle part of the top end of the mounting frame 13, the bottom end of the pressing rod 15 extends to the inner part of the mounting frame 13 through the mounting frame 13 and is fixedly provided with a second fixing plate 16, one side of the second fixing plate 16 opposite to the first fixing plate 14 is provided with a rubber pad, a second spring 17 is sleeved outside the pressing rod 15 and between the second fixing plate 16 and the mounting frame 13, two ends of the second spring 17 are respectively and fixedly connected with the mounting frame 13 and the second fixing plate 16, clamping strips 18 are fixedly arranged on the upper parts of the front side and the rear side of the pressing rod 15, clamping devices 19 are arranged on the front side and the rear side of the top end of the mounting frame 13, each clamping device 19 comprises a clamping shell 191, and the top end of the mounting frame 13 are fixedly connected, a clamping rod 192 is movably arranged in the clamping shell 191, two ends of the clamping rod 192 extend to the outside of the clamping shell 191 through the clamping shell 191, one end, far away from the pressure rod 15, of the clamping rod 192 is fixedly provided with a frame body 193, the inner wall of the front side of the frame body 193 is fixedly provided with an inclined block 194, the outer part of the clamping rod 192 is fixedly sleeved with a pressure plate 195, a third spring 196 is sleeved outside the clamping rod 192 and between the pressure plate 195 and the clamping shell 191, when the pressure rod 15 is pressed downwards, the pressure rod 15 drives the second fixing plate 16 to descend so that the second fixing plate 16 is abutted against the first fixing plate 14 to clamp and fix the protective film, the friction force between the first fixing plate 14 and the protective film and between the second fixing plate 16 and the protective film is increased through the arrangement of a rubber pad so that the protective film is fixed more stably, when the second fixing plate 16 descends, the second spring 17 is stretched to deform to generate acting force, and the clamping strip 18 is driven to descend while the pressure rod 15 descends, when the clamping strip 18 contacts with the clamping rod 192, relative sliding is generated, so that the clamping rod 192 is extruded to enable the clamping rod 192 to contract towards the inside of the clamping shell 191, meanwhile, the clamping rod 192 drives the pressing plate 195 to move along with the pressing plate 195 to compress the third spring 196 to enable the third spring 196 to deform to generate acting force, when the clamping strip 18 moves to the lower side of the clamping rod 192, the third spring 196 releases acting force to drive the pressing plate 195 to reset to enable the clamping rod 192 to reset to enable the clamping strip 18 to be fixed, fixing of the pressing rod 15 is achieved, fixing of the second fixing plate 16 is achieved, the protective film is located through extrusion of the second fixing plate 16 and the first fixing plate 14, and deviation of the protective film when cutting is avoided.

One end of the clamping strip 18, which is far away from the pressing rod 15, is provided with a downward inclined surface, and one end of the clamping rod 192, which is close to the pressing rod 15, is provided with an upward inclined surface, and the inclined surfaces are arranged so that the clamping rod 192 is pressed to be contracted into the clamping shell 191 when the clamping strip 18 contacts the clamping rod 192.

Top left side symmetry fixed mounting of roof 1 has stand 20, be front and back distribution between two stands 20, the horizontal fixed mounting in right side upper portion of stand 20 has inserted bar 21, the right-hand member of inserted bar 21 is equipped with the inclined plane, when framework 193 moves to its inside sloping block 194 and the contact of inserted bar 21, thereby it makes sloping block 194 to the direction motion of keeping away from depression bar 15 to drive framework 193 motion thereupon and then realize that the motion thereupon of kelly 192 makes kelly 192 leave card strip 18 and cancel its fixedly to the setting of inclined plane.

Roof 1's top right side fixed mounting has carrier 22, carrier 22's top middle part fixed mounting has cylinder 23, the cylinder pole bottom of cylinder 23 passes carrier 22 and extends to its inside fixed mounting has knife rest 24, knife rest 24's bottom is equipped with the cutter, roof 1's top right side be equipped with cutter assorted sword groove 25, the mouth that drops has been seted up on roof 1's top, both sides all are equipped with scale bar 26 around roof 1's top, can realize the adjustment to cutting length through observing scale bar 26, realize the fixed length cutting.

The working principle is as follows: when the protective film fixing device is used, one end of a protective film penetrates through the carrier frame 22 and is placed between the second fixing plate 16 and the first fixing plate 14, the pressing rod 15 is pressed downwards, when the pressing rod 15 is pressed downwards, the pressing rod 15 drives the second fixing plate 16 to descend so that the second fixing plate 16 is abutted to the first fixing plate 14 to clamp and fix the protective film, the friction force between the first fixing plate 14 and the protective film and between the second fixing plate 16 and the protective film is increased through the arrangement of the rubber pads, so that the protective film is fixed more stably, when the second fixing plate 16 descends, the second spring 17 is stretched to deform to generate acting force, when the pressing rod 15 descends, the clamping strip 18 is driven to descend, when the clamping strip 18 is contacted with the clamping rod 192, relative sliding is generated, so that the clamping rod 192 is extruded to contract towards the clamping shell 191, and meanwhile, the clamping rod 192 drives the pressing plate 195 to move along with the clamping rod 195 to compress the third spring 196 so as to generate acting force, when the clamping bar 18 moves to the lower part of the clamping rod 192, the third spring 196 releases acting force to drive the pressing plate 195 to reset so as to realize the resetting of the clamping rod 192 and fix the clamping bar 18, thereby realizing the fixing of the pressing rod 15 and further realizing the fixing of the second fixing plate 16, the protective film is positioned by the extrusion of the second fixing plate 16 and the first fixing plate 14 so as to avoid the deviation of the protective film during cutting, after the fixing is finished, the motor 5 is started to ensure that the output shaft of the motor rotates in the forward direction to drive the conveying roller 4 to rotate so as to realize the rotation of the conveying belt, so that the supporting plate 6 and the first driving rod 7 are driven to move leftwards, the first driving rod 7 drives the second driving rod 12 to move therewith and further drive the driving frame 11 to move therewith, the driving frame 11 drives the moving block 9 to move leftwards so as to drive the mounting frame 13 to realize the movement of the pressing rod 15 and the second fixing plate 16 and the first fixing plate 14 and further drive the protective film to move therewith, in the process, the moving block 9 compresses the first spring 10 to enable the first spring 10 to deform to generate acting force, the length of the protective film can be read according to the scale bar 26, after the protective film is stretched to a proper length, the motor 5 is turned off to enable the conveyor belt to stop moving, the protective film is located at the required length, the air cylinder 23 is started to enable the air cylinder rod to descend to drive the knife rest 24 to descend, the descending matching knife groove 25 of the cutter is further used for cutting the protective film, the motor 5 can be started to enable the output shaft of the motor 5 to rotate reversely, the conveyor belt rotates reversely to achieve rightward movement of the first driving rod 7, at the moment, the first spring 10 releases the acting force to drive the moving block 9 to move rightwards to achieve rightward movement of the mounting frame 13, the protective film moves rightwards, when the length is adjusted carelessly to be too long, the length of the protective film can be shortened, the motor 5 is started again after cutting is completed, the output shaft of the motor 5 is rotated forwardly to drive the conveying roller 4 to rotate continuously to achieve continuous movement of the conveyor belt, the mounting frame 13 moves leftwards continuously to achieve movement of the frame 193 movement When the frame 193 moves to the inner inclined block 194 and contacts the inserted rod 21, the inclined block 194 moves in the direction away from the pressure rod 15 through the arrangement of the inclined surface, so that the frame 193 is driven to move along with the inclined block, the clamping rod 192 moves along with the inclined block, the clamping rod 192 leaves the clamping strip 18 and is not fixed, the third spring 196 is in a compressed state in the process, at the moment, the second spring 17 releases acting force to drive the second fixing plate 16 to ascend, the pressure rod 15 ascends, the clamping strip 18 ascends and is located above the clamping rod 192, at the moment, the fixing of the protective film is cancelled, the protective film falls onto the conveying belt through the falling port and finally moves to the left end along the conveying belt to be collected, the frame 193 moves for a certain distance along the inserted rod 21 along with the continuous movement of the conveying belt, and when the first driving rod 7 moves to the left end of the conveying belt, the first driving rod 7 and the second driving rod 12 slide relatively, the first driving rod 7 continues to move along with the conveyor belt and finally separates from the second driving rod 12, at the moment, the first spring 10 releases acting force to drive the moving block 9 to move rightwards to realize the rightwards movement of the mounting frame 13, the frame body 193 moves along with the first driving rod, when the frame body 193 leaves the inserting rod 21, the third spring 196 releases acting force to realize the resetting of the pressing plate 195 to realize the resetting of the clamping rod 192, and finally the mounting frame 13 resets, so far, the fixed-length cutting of the protective film and the automatic taking-off of the protective film are realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a device is cut to silica gel protection film with structure is prevented partially in location, includes roof (1), its characterized in that, the equal fixed mounting in bottom four corners of roof (1) has supporting leg (2), the inboard lower part fixed mounting of supporting leg (2) has curb plate (3), and front and back two are adjacent movable mounting has transfer roller (4) jointly between curb plate (3), two be connected through the conveyer belt between transfer roller (4), be located left place ahead the front fixed mounting of curb plate (3) has motor (5), the output shaft of motor (5) passes curb plate (3) and the front end fixed connection of transfer roller (4), the top fixed mounting of conveyer belt has support plate (6), the top middle part fixed mounting of support plate (6) has first actuating lever (7), the equal fixed mounting in both sides has mounting panel (8) around roof (1), the cavity is arranged in the mounting plate (8), moving blocks (9) are movably mounted in the mounting plate (8), a first spring (10) is fixedly mounted on the left side of each moving block (9), a first movable opening is formed in the bottom end of the mounting plate (8), a driving frame (11) is fixedly mounted at the bottom ends of the two moving blocks (9) together, a second driving rod (12) is fixedly mounted in the middle of the bottom end of the driving frame (11), a second movable opening is formed in the top end of the mounting plate (8), a mounting frame (13) is fixedly mounted at the top ends of the two moving blocks (9) together, a first fixing plate (14) is fixedly mounted below the inner portion of the mounting frame (13), a pressing rod (15) is vertically inserted in the middle of the top end of the mounting frame (13), and the bottom end of the pressing rod (15) penetrates through the mounting frame (13) and extends to the inner portion of the mounting frame and is fixedly mounted with a second fixing plate (16), the utility model discloses a pneumatic pressure cooker, including roof, base, second fixed plate (16) and first fixed plate (14), the relative one side of second fixed plate (16) and first fixed plate (14) all is equipped with the rubber pad, the outside of depression bar (15) just is located and is equipped with second spring (17) between second fixed plate (16) and mounting bracket (13), the both ends of second spring (17) respectively with mounting bracket (13) and second fixed plate (16) fixed connection, the equal fixed mounting in upper portion of both sides has card strip (18) around depression bar (15), both sides all are equipped with latch device (19) around the top of mounting bracket (13), the top left side symmetry fixed mounting of roof (1) has stand (20), two distribute around being between stand (20), the horizontal fixed mounting in right side upper portion of stand (20) has inserted bar (21), the top right side fixed mounting of roof (1) has carrier (22), the top middle part fixed mounting of carrier (22) has cylinder (23), the bottom end of a cylinder rod of the cylinder (23) penetrates through the carrier frame (22) and extends to the interior of the carrier frame (22) and is fixedly provided with a cutter frame (24), the bottom end of the cutter frame (24) is provided with a cutter, the right side of the top end of the top plate (1) is provided with a cutter groove (25) matched with the cutter, the top end of the top plate (1) is provided with a dropping opening, and the front side and the rear side of the top end of the top plate (1) are respectively provided with a scale bar (26).

2. The device is cut to silica gel protection film with location structure of preventing partially according to claim 1, characterized in that latch device (19) is including card shell (191), card shell (191) and mounting bracket (13) top fixed connection, the inside movable mounting of card shell (191) has kelly (192), the both ends of kelly (192) all pass card shell (191) and extend to its outside, one end fixed mounting that depression bar (15) were kept away from in kelly (192) has framework (193), the front side inner wall fixed mounting of framework (193) has sloping block (194), the external fixed cover of kelly (192) is equipped with clamp plate (195), the outside of kelly (192) just is located and is equipped with third spring (196) between clamp plate (195) and card shell (191).

3. The silica gel protective film slitting device with the positioning deviation-preventing structure as claimed in claim 2, wherein the right end of the insertion rod (21) is provided with an inclined surface.

4. The device for cutting the silica gel protective film with the positioning deviation-proof structure according to claim 2, wherein an end of the clamping strip (18) far away from the pressing rod (15) is provided with a downward inclined surface, and an end of the clamping rod (192) close to the pressing rod (15) is provided with an upward inclined surface.

5. The device is cut to silica gel protection film with location structure of preventing partially according to claim 1, characterized in that, the relative one end of first actuating lever (7) and second actuating lever (12) is the round end setting.