CN211868633U - Shell switching device of film sticking machine - Google Patents

Abstract

The utility model relates to a casing auto-change over device of sticking film machine belongs to the technical field of sticking film machine, and it includes the frame, fixed mounting has the workstation in the frame, fixed mounting has a motor on the end lateral wall of workstation, the pivot of motor is rotated and is run through the workstation, fixed mounting has a rotary platform in the pivot of motor, a plurality of mounting platforms, every are installed to circumference on the rotary platform the draw-in groove has all been seted up on the mounting platform, the pad pasting mould that is used for installing the casing is installed to the joint in the draw-in groove, still install on the rotary platform a plurality of be used for with pad pasting mould locking is in retaining member in the draw-in groove. The utility model has the advantages of can place a plurality of pad pasting moulds and switch in order to improve production efficiency.

Description

Shell switching device of film sticking machine

Technical Field

The utility model belongs to the technical field of the technique of sticking film machine and specifically relates to a casing auto-change over device of sticking film machine is related to.

Background

The LED nixie tube is formed by packaging a plurality of light-emitting diodes together into an 8-shaped device, the lead wires are connected inside, and only the strokes and the common electrodes of the LED nixie tube need to be LED out. The LED nixie tube comprises a reflecting cover and a display film adhered on the reflecting cover. And the sticking mode of the sticking film on the current LED nixie tube is usually manual sticking, namely, after the sticking film is punched and formed by equipment, the sticking film is stuck to the shell of the LED nixie tube manually.

In order to solve the problems of low efficiency and low precision of manual film pasting, equipment for pasting films on LED nixie tubes, namely a film pasting machine, exists in the market at present. A general film sticking machine is shown in fig. 6, and includes a frame 1, a worktable 11 is fixedly mounted on the frame 1, a film sticking mold 16 is mounted on the worktable 11, and a housing of an LED nixie tube is mounted in the film sticking mold 16. The workbench 11 is also provided with an air cylinder 17, and a press block 18 is fixedly arranged on a piston rod of the air cylinder 17. A conveyor belt 8 for conveying the film is arranged on the ground at one side of the frame 1.

The using method of the film sticking machine is that a worker places the shell of the LED nixie tube in the film sticking mould 16, then the conveyer belt 8 conveys the film, and the worker takes down the film sticking on the conveyer belt 8 and positions and places the film sticking on the shell of the LED nixie tube. After the film is placed, the air cylinder 17 is started to drive the pressing block 18 to press downwards, and the pressure of the pressing block 18 enables the film to be bonded with the shell of the LED nixie tube. And after the worker takes down the shell of the LED nixie tube after film pasting, the film pasting work of the shell of the next LED nixie tube can be carried out.

The above prior art solutions have the following drawbacks: because only one film sticking die can be placed on the workbench, in the film sticking process, workers cannot perform subsequent operation, and can only wait for the film sticking machine to finish the film sticking work of one shell, so that the production efficiency is low. Therefore, a film sticking machine capable of placing a plurality of film sticking molds and switching to improve the production efficiency is required.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a casing auto-change over device of sticking film machine, it has can place a plurality of pad pasting moulds and carries out the advantage of switching in order to improve production efficiency.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a casing auto-change over device of sticking film machine, includes the frame, fixed mounting has the workstation in the frame, fixed mounting has a motor on the end lateral wall of workstation, the pivot of motor is rotated and is run through the workstation, fixed mounting has a rotary platform in the pivot of motor, a plurality of mounting platforms, every are installed to rotary platform last circumference the last draw-in groove of all having seted up of mounting platform, the pad pasting mould that is used for installing the casing is installed to the joint in the draw-in groove, rotary platform is last still to install a plurality of be used for with the locking of pad pasting mould is in retaining member in the draw-in groove.

Through adopting above-mentioned technical scheme, a plurality of mounting platforms are installed to circumference on the rotary platform, and a pad pasting mould can all be installed to every mounting platform, all can place a casing in every pad pasting mould. Then, in the use, after the sticking film machine accomplished the pad pasting of a casing, the motor drove whole rotary platform and rotates certain angle, makes next mounting platform get into and waits to pad pasting station. When the film sticking machine sticks the film to the shell, a worker can take the shell which is stuck with the film out of the film sticking mould and put the shell to be stuck with the film. The switching circulation of the shell is carried out in the mode, and the film pasting efficiency of the shell is greatly improved.

The present invention may be further configured in a preferred embodiment as: the locking piece comprises an installation piece fixedly installed on the rotary platform, a limiting ring is fixedly installed at one end of the installation piece, a push rod is installed in the limiting ring in a sliding mode, the push rod is provided with a cavity, a telescopic rod is connected to the inner thread of the cavity, and a pushing piece used for pushing the push rod is installed at the other end of the installation piece.

Through adopting above-mentioned technical scheme, in order to reduce the revolving platform and rotate the back, the position error of pad pasting mould need use the retaining member to promote the pad pasting mould and support tightly with the draw-in groove to make the position of pad pasting mould keep relatively fixed. At the moment, the film sticking die is placed in the clamping groove, and the push rod is pushed to slide along the limiting ring through the pushing piece so as to push the telescopic rod to be tightly abutted to the film sticking die, so that the position error of the film sticking die is reduced. In addition, because the size of the film sticking mould is different, the total length of the push rod and the telescopic rod can be adjusted only by screwing the telescopic rod.

The present invention may be further configured in a preferred embodiment as: the pushing piece comprises a mounting seat fixedly mounted at one end, far away from the film pasting die, of the mounting piece, a connecting rod is hinged to the mounting seat, a bending rod is hinged to one end, far away from the mounting seat, of the connecting rod, the end, far away from the connecting rod, of the bending rod is hinged to the push rod, and a handle is fixedly mounted on the connecting rod on one side of the bending rod.

By adopting the technical scheme, when the pushing piece is used, only the pulling handle needs to be pulled to drive the connecting rod to rotate by taking the mounting seat as a rotating shaft, the bending rod can be pushed in the rotating process of the connecting rod, and the pushing rod can be pushed by the bending rod. When the both ends of pole of buckling were in a horizontal line, the reaction force of push rod was difficult for promoting the pole of buckling and takes place to rotate, so, the impeller just also had certain locking capacity, and is corresponding, and the pad pasting mould just also is locked in the draw-in groove, is difficult for taking place the skew in the position.

The present invention may be further configured in a preferred embodiment as: the telescopic link is kept away from the one end of push rod has been seted up and has been held the chamber, it installs the piece of keeping silent through the installed part to hold the intracavity, it includes the tight pole that keeps silent to support the piece, it installs through the installed part joint to support the tight pole hold the intracavity, it keeps away from to support the tight pole the one end fixed mounting of telescopic link has the piece of keeping silent, it keeps silent to keep silent the piece keep away from then fixed mounting has one to keep silent the cushion on the lateral wall of tight pole one side.

Through adopting above-mentioned technical scheme, the cross-sectional area of telescopic link is less, so the position pressure of pad pasting mould and telescopic link contact is great, leads to the pad pasting mould to damage easily. The supporting piece that additionally sets up transmits the power of telescopic link for supporting the tight pole, and support the tight pole and then transmit power for supporting the tight piece to promote to support tight cushion and pad pasting mould and support tightly. Because the contact area between the abutting cushion block and the film sticking die is large, the pressing force is small under the same thrust, and the film sticking die is not easy to damage.

The present invention may be further configured in a preferred embodiment as: the mounting part comprises a mounting groove formed in the tightening rod, a mounting sleeve is slidably mounted in the mounting groove, a mounting spring is fixedly mounted in the mounting sleeve, one end, far away from the mounting sleeve, of the mounting spring is connected with the bottom side wall of the mounting groove, a clamping block is fixedly mounted on the mounting sleeve outside the mounting groove, a limiting groove is formed in the telescopic rod, and the limiting groove is in sliding fit with the clamping block.

Through adopting above-mentioned technical scheme, when carrying out the installation that supports the piece, promote the fixture block and sink into the mounting groove in order to promote the installation cover, at this moment, installation spring pressurized shrink. Then the mounting rod is placed into the accommodating cavity, and the mounting spring pushes the fixture block to be tightly abutted against the inner side wall of the accommodating cavity; the installation rod is pushed again, the installation rod continuously sinks into the accommodating cavity, the clamping block finally slides to the limiting groove, and the installation spring pushes the clamping block to be clamped into the limiting groove, so that the installation of the abutting piece is completed.

The present invention may be further configured in a preferred embodiment as: still install on the telescopic link and be used for the release piece of piece supports, the release piece includes a set of two annuluses, and two equal circumference in annular are seted up on the telescopic link, and two annuluses are located respectively the both sides of spacing groove, every all rotate in the annular and install a swivel, two fixed cup joint is installed the release ring on the swivel, the release groove has been seted up on the inside wall of release ring, the release groove with the spacing groove is linked together, just the degree of depth of release groove reduces along precession direction.

By adopting the technical scheme, the fastening piece belongs to a quick-wear piece due to long-term compression, and the fastening piece needs to be taken down for maintenance or replacement after the fastening piece is damaged. When the abutting piece needs to be taken down, the release ring is rotated, and when the release ring rotates, the release ring is positioned through the rotating fit of the rotating ring and the annular groove. And because the degree of depth of the release groove in the release ring reduces along the precession direction, consequently, the inside wall in release groove constantly promotes the fixture block, makes installation spring pressurized shrink, after the fixture block sinks into the spacing inslot completely, the pulling supports the tighting pole and can take off whole piece from the telescopic link of supporting.

The present invention may be further configured in a preferred embodiment as: the releasing ring is also provided with a releasing hole which is communicated with the releasing groove.

Through adopting above-mentioned technical scheme, when the release tank can't promote the fixture block and sink into the spacing inslot, can use external instrument to promote the fixture block through the release hole to reduce fixture block and spacing inslot card and die and can't be with the possibility of taking off of holding tightly.

The present invention may be further configured in a preferred embodiment as: the inner side wall of the accommodating cavity is further provided with a guide groove, the guide groove is communicated with one side, away from the push rod, of the limiting groove, and the depth of the guide groove is reduced from being close to the limiting groove to being far away from the limiting groove.

Through adopting above-mentioned technical scheme, when taking off the piece that supports, the fixture block dies with the inside wall card of spacing groove easily to make and support the difficult taking off of piece. The guide groove which is additionally and obliquely arranged enables the clamping block to easily slide into the accommodating cavity along the guide groove, thereby reducing the possibility that the clamping block is blocked in the limiting groove

The present invention may be further configured in a preferred embodiment as: the inner side wall of the accommodating cavity is further provided with a guide groove along the length direction, and the guide groove is communicated with the guide groove.

Through adopting above-mentioned technical scheme, the guide way can be when the installation supports the piece, forms the guide effect to the fixture block, makes the fixture block slide in order easily to slide into the guide slot along the guide way to finally the card is gone into the spacing inslot, thereby it takes place to rotate and makes the unable card of fixture block go into the possibility of spacing inslot to reduce the fixture block.

To sum up, the utility model discloses a following at least one useful technological effect:

1. by arranging the rotary table and the motor and arranging the plurality of mounting platforms on the rotary table, after the film sticking machine finishes the film sticking of one shell, the film sticking operation of the next shell can be immediately carried out;

2. through the matching of the locking piece and the pushing piece, the film sticking die can be stably locked and installed in the clamping groove, so that the position error of the film sticking die in the rotating process is reduced;

3. by arranging the abutting piece, the pressure on the film sticking die is reduced on the premise that the thrust is not changed, so that the service life of the film sticking die is prolonged;

4. through setting up installed part and release, make to support tight piece detachable and install on the telescopic link to make and support easy to change when the piece damages.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the locking member, pushing member, retaining member and releasing member of the present invention.

Fig. 3 is a cross-sectional view of the fastening member and the mounting member of the present invention, and the fastening member is in a removed state.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 5 is a cross-sectional view of a swivel and release ring of the present invention.

Fig. 6 is a schematic diagram of a prior art structure.

In the figure, 1, a frame; 11. a work table; 12. a motor; 13. a rotating platform; 14. mounting a platform; 15. a card slot; 16. pasting a film mould; 17. a cylinder; 18. briquetting; 2. a locking member; 21. mounting a sheet; 22. a limiting ring; 23. a push rod; 24. a telescopic rod; 3. a pusher member; 31. a mounting seat; 32. a connecting rod; 33. a bending rod; 34. a handle; 4. an accommodating chamber; 5. an abutting piece; 51. a tightening rod; 52. a propping block; 53. tightly abutting against the cushion block; 6. a mounting member; 61. mounting grooves; 62. installing a sleeve; 63. installing a spring; 64. a clamping block; 65. a limiting groove; 7. a release member; 71. a ring groove; 72. rotating the ring; 73. releasing the ring; 74. a relief groove; 75. a release aperture; 76. a guide groove; 77. a guide groove; 8. and (4) a conveyor belt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, for the utility model discloses a casing auto-change over device of sticking film machine, including fixed mounting in subaerial frame 1, fixed mounting has a workstation 11 in the frame 1, and fixed mounting has a motor 12 on the bottom lateral wall of workstation 11, and the pivot of motor 12 rotates and runs through workstation 11.

A square rotary platform 13 is fixedly mounted on a rotating shaft of the motor 12, mounting platforms 14 are fixedly mounted on four vertical side walls of the rotary platform 13, a clamping groove 15 is formed in the top side wall of each mounting platform 14, and a film sticking mold 16 used for mounting a shell is mounted in each clamping groove 15 in a clamping mode.

As shown in fig. 1 and 2, four locking members 2 for locking and installing the film sticking mould 16 in the clamping groove 15 are further circumferentially installed on the rotating platform 13. Retaining member 2 includes the installation piece 21 of fixed mounting on rotary platform 13, and the one end fixed mounting that installation piece 21 is close to pad pasting mould 16 has a spacing ring 22, and slidable mounting has a push rod 23 in the spacing ring 22. One end of the push rod 23 close to the film sticking mould 16 is provided with a cavity which is coaxial with the push rod 23 along the length direction, and the inner thread of the cavity is connected with a telescopic rod 24.

The end of the mounting plate 21 far away from the film sticking mould 16 is provided with a pushing part 3 for pushing a push rod 23 to slide along a limiting ring 22. The pushing part 3 comprises a mounting seat 31, the mounting seat 31 is fixedly mounted on the top side wall of one end of the mounting sheet 21 far away from the film sticking mould 16, and a connecting rod 32 is hinged on the mounting seat 31. One end of the connecting rod 32, which is far away from the mounting seat 31, is hinged with a bending rod 33, and one end of the bending rod 33, which is far away from the connecting rod 32, is hinged with one end of the push rod 23, which is far away from the film sticking die 16. A handle 34 is fixedly arranged on the connecting rod 32 at one side of the bending rod 33, and a sinking groove for the bending rod 33 to sink into is arranged on the handle 34.

As shown in fig. 2 and fig. 3, an accommodating cavity 4 is formed in an end side wall of one end of the telescopic rod 24, which is far away from the push rod 23, and a fastening member 5 is installed in the accommodating cavity 4 through an installation member 6. The abutting piece 5 comprises an abutting rod 51, the abutting rod 51 is slidably connected with the accommodating cavity 4, one end, far away from the push rod 23, of the abutting rod 51 is vertically and fixedly provided with an abutting block 52, and the side wall, far away from the push rod 23, of the abutting block 52 is provided with an abutting cushion block 53.

As shown in fig. 3 and 4, the mounting member 6 includes a mounting groove 61 opened on the peripheral sidewall of the abutting rod 51, a mounting sleeve 62 is slidably mounted in the mounting groove 61, a mounting spring 63 is fixedly mounted in a cavity of the mounting sleeve 62, one end of the mounting spring 63 far away from the mounting sleeve 62 is connected to the bottom sidewall of the mounting groove 61, and a latch 64 is fixedly mounted on the mounting sleeve 62 outside the mounting groove 61. A limiting groove 65 is formed on the peripheral side wall of the telescopic rod 24, the limiting groove 65 is communicated with the accommodating cavity 4, and the limiting groove 65 is in sliding fit with the clamping block 64.

Still install the release 7 that is used for releasing to prop up the piece 5 on the telescopic link 24, release 7 includes a set of two annular 71, and two annular 71 equal circumference are seted up on the periphery lateral wall of telescopic link 24, and two annular 71 are located the both sides of spacing groove 65 respectively. A rotating ring 72 is rotatably arranged in each of the two annular grooves 71, and a release ring 73 is fixedly sleeved on each of the two rotating rings 72.

As shown in fig. 4 and 5, a release groove 74 is formed on an inner peripheral side wall of the release ring 73 between the two rotary rings 72, the release groove 74 communicates with the stopper groove 65, and a depth of the release groove 74 is reduced along a screwing direction of the release ring 73. The release ring 73 is further provided with a release hole 75 on the peripheral side wall, the axis of the release hole 75 is perpendicular to the axis of the telescopic rod 24, and the release hole 75 is communicated with the release groove 74.

The inner side wall of the accommodating cavity 4 is further provided with a guide groove 76, the guide groove 76 is communicated with one side of the limiting groove 65 far away from the push rod 23, and the depth of the guide groove 76 is reduced from the position close to the limiting groove 65 to the position far away from the limiting groove 65. The inner peripheral side wall of the accommodating cavity 4 is further provided with a guide groove 77 along the length direction, and the guide groove 77 is communicated with one end of the guide groove 76 far away from the limiting groove 65.

The implementation principle of the embodiment is as follows:

before a film sticking operation is performed on the shell of the LED nixie tube by using a film sticking machine, four film sticking dies 16 are required to be installed in the clamping grooves 15. At this moment, directly install in draw-in groove 15 with pad pasting mould 16 joint, and in order to reduce the revolving platform and rotate the back, pad pasting mould 16's position error, need use retaining member 2 to promote pad pasting mould 16 and draw-in groove 15 and support tightly to make pad pasting mould 16's position keep relatively fixed.

At this time, only the handle 34 needs to be pulled to drive the connecting rod 32 to rotate around the mounting seat 31, so that the bending rod 33 can be pushed in the rotation process of the connecting rod 32, and the bending rod 33 can push the push rod 23 to slide along the limiting ring 22. In the sliding process of the push rod 23, the push rod 23 pushes the abutting piece 5 through the telescopic rod 24 to push the film sticking die 16 to abut against the clamping groove 15, so that the position error of the film sticking die 16 is reduced.

In addition, because the size of the film sticking mould 16 is different, the total length of the push rod 23 and the telescopic rod 24 can be adjusted only by screwing the telescopic rod 24. And when the two ends of the bending rod 33 are on the same horizontal line, the reaction force of the push rod 23 is not easy to push the bending rod 33 to rotate, so that the pushing part 3 has a certain locking capacity, and correspondingly, the film sticking die 16 is locked in the clamping groove 15, and the position deviation is not easy to occur.

The abutting piece 5 is easy to damage due to long-term compression, belongs to a vulnerable part, and the abutting piece 5 needs to be taken down for maintenance or replacement after the abutting piece 5 is damaged. The release ring 73 is rotated when it is desired to remove the abutment member 5, and the rotational engagement of the ring 72 and the groove 71 locates the release ring 73 when the release ring 73 is rotated. Since the depth of the release groove 74 in the release ring 73 is reduced along the screwing direction, the inner sidewall of the release groove 74 continuously pushes the latch 64, so that the mounting spring 63 is compressed and contracted, and the latch 64 finally sinks into the limiting groove 65 completely.

After the clamping block 64 is completely sunk into the limiting groove 65, the whole abutting part 5 can be taken down from the telescopic rod 24 only by pulling the abutting rod 51 to enable the clamping block 64 to firstly slide into the guide groove 76 from the limiting groove 65 and then slide along the guide groove 77.

When the releasing groove 74 cannot push the latch 64 to sink into the limiting groove 65, an external tool can be used to push the latch 64 through the releasing hole 75, so as to reduce the possibility that the latch 64 is locked with the limiting groove 65 and the retaining member 5 cannot be removed.

When the abutting piece 5 is installed, the latch 64 is pushed to push the installation sleeve 62 to sink into the installation groove 61, and at this time, the installation spring 63 is compressed and contracted. Then, the mounting rod is placed into the accommodating cavity 4, and the mounting spring 63 pushes the latch 64 to abut against the inner side wall of the accommodating cavity 4. Subsequently, the mounting rod is pushed, the catching block 64 slides along the guide groove 77 and the guide groove 76 in turn, and finally catches in the catching groove 65 under the pushing of the mounting spring 63, thereby completing the mounting of the abutment member 5.

When the film sticking machine is normally produced, because the rotary platform 13 is provided with the four mounting platforms 14, each mounting platform 14 can be provided with one film sticking mould 16, and a shell can be placed in each film sticking mould 16. Then, in the use process, after the laminator finishes laminating a shell, the motor 12 drives the whole rotary platform 13 to rotate ninety degrees, so that the next mounting platform 14 enters a station to be laminated with a film. When the laminator is used for laminating the shell, a worker can take the shell subjected to film laminating out of the film laminating die 16 and place the shell to be laminated. The switching circulation of the shell is carried out in the mode, and the film pasting efficiency of the shell is greatly improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a casing auto-change over device of sticking film machine, includes frame (1), fixed mounting has workstation (11), its characterized in that on frame (1): fixed mounting has a motor (12) on the end lateral wall of workstation (11), the pivot of motor (12) is rotated and is run through workstation (11), fixed mounting has a rotary platform (13) in the pivot of motor (12), a plurality of mounting platform (14), every are installed to circumference on rotary platform (13) draw-in groove (15) have all been seted up on mounting platform (14), laminating mould (16) that are used for installing the casing are installed to joint in draw-in groove (15), still install on rotary platform (13) a plurality of be used for with laminating mould (16) locking is in retaining member (2) in draw-in groove (15).

2. The housing switching device of the laminator according to claim 1, wherein: retaining member (2) are including fixed mounting in installation piece (21) on rotary platform (13), the one end fixed mounting of installation piece (21) has spacing ring (22), slidable mounting has a push rod (23) in spacing ring (22), push rod (23) are equipped with the cavity, and cavity female connection has telescopic link (24), the other end of installation piece (21) is then installed and is used for promoting impeller (3) of push rod (23).

3. The housing switching device of the laminator according to claim 2, wherein: the pushing piece (3) comprises a mounting seat (31) fixedly mounted at one end of the mounting piece (21) far away from the film sticking die (16), a connecting rod (32) is mounted on the mounting seat (31) in a hinged mode, one end, far away from the mounting seat (31), of the connecting rod (32) is mounted with a bending rod (33) in a hinged mode, one end, far away from the connecting rod (32), of the bending rod (33) is connected with the push rod (23) in a hinged mode, and a handle (34) is fixedly mounted on the connecting rod (32) on one side of the bending rod (33).

4. The housing switching device of the film laminator according to claim 3, wherein: keep away from telescopic link (24) the one end of push rod (23) has been seted up and has been held chamber (4), it supports retainer (5) to install through installed part (6) in chamber (4) to hold, support retainer (5) including supporting tight pole (51), support tight pole (51) and install through installed part (6) joint hold in chamber (4), support tight pole (51) and keep away from the one end fixed mounting of telescopic link (24) supports tight piece (52), support tight piece (52) and keep away from support tight pole (51) one side on the lateral wall then fixed mounting support tight cushion (53).

5. The housing switching device of the laminator according to claim 4, wherein: installation part (6) are including offering mounting groove (61) on the pole (51) of supporting, slidable mounting has installation cover (62) in mounting groove (61), fixed mounting has installation spring (63) in installation cover (62), installation spring (63) are kept away from the one end of installation cover (62) with the end lateral wall of mounting groove (61) links to each other, mounting groove (61) are outer then fixed mounting has a fixture block (64) on installation cover (62), a spacing groove (65) have then been seted up on telescopic link (24), spacing groove (65) with fixture block (64) sliding fit.

6. The housing switching device of the laminator according to claim 5, wherein: still install on telescopic link (24) and be used for the release (7) of piece (5) support, release (7) are including a set of two annular (71), and two equal circumference of annular (71) are seted up on telescopic link (24), and two annular (71) are located respectively the both sides of spacing groove (65), every all rotate in annular (71) and install a change (72), two fixed cup joint is installed release ring (73) on change (72), release groove (74) have been seted up on the inside wall of release ring (73), release groove (74) with spacing groove (65) are linked together, just the degree of depth of release groove (74) reduces along precession direction.

7. The housing switching device of the laminator according to claim 6, wherein: the releasing ring (73) is also provided with a releasing hole (75), and the releasing hole (75) is communicated with the releasing groove (74).

8. The housing switching device of a film laminator according to claim 5 or 6, wherein: the inner side wall of the accommodating cavity (4) is further provided with a guide groove (76), the guide groove (76) is communicated with one side, away from the push rod (23), of the limiting groove (65), and the depth of the guide groove (76) is reduced from being close to the limiting groove (65) to being far away from the limiting groove (65).

9. The housing switching device of the film laminator according to claim 8, wherein: the inner side wall of the accommodating cavity (4) is further provided with a guide groove (77) along the length direction, and the guide groove (77) is communicated with the guide groove (76).

Images