CN115157505B

CN115157505B - Curing box for plastic film after molding

Info

Publication number: CN115157505B
Application number: CN202211095090.8A
Authority: CN
Inventors: 陈兆信; 王国福
Original assignee: Qingzhou Huasong Plastic Industry Co ltd
Current assignee: Qingzhou Huasong Plastic Industry Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-12-09
Anticipated expiration: 2042-09-08
Also published as: CN115157505A

Abstract

The invention relates to the field related to plastic film processing, in particular to a curing box after plastic film forming, which comprises a drying room and a goods shelf, wherein a plurality of drying layers are arranged on the goods shelf, each drying layer is provided with an unreeling assembly and two dampers, each unreeling assembly comprises an unreeling roller, a plurality of groups of limiting clamping rollers and a reeling roller, each group of limiting clamping rollers comprises an upper clamping roller and a lower clamping roller, the unreeling roller and the reeling roller are respectively hinged with a first hinged long plate and a second hinged long plate, a lock pin is inserted in the unreeling roller, each damper comprises an upper semi-cylinder, a lower semi-cylinder, a retarding sleeve and a plurality of metal elastic sheets, and the goods shelf is also provided with a driving mechanism. According to the invention, the plastic film in the drying room is slowly conveyed to the winding roller from the unwinding roller for heating, so that the whole plastic film can be uniformly heated and dried, and the drying is more thorough and uniform; the invention can ensure that the plastic film is always straight without looseness or even drooping in the unreeling process, and ensures the stable reeling of the plastic film in the drying process.

Description

Curing box after plastic film forming

Technical Field

The invention relates to the field related to plastic film processing, in particular to a curing box after plastic film forming.

Background

The curing is also called curing, namely, the compounded coiled plastic composite film is put into a drying room, so that the adhesive between the layers of the composite film is fully reacted and crosslinked, thereby achieving the process of the optimal composite strength between the layers of the composite film, and the application scenes of the plastic film are extremely wide.

The patent of china's publication number "CN213055630U", it discloses a complex film curing chamber, including spool and the curing chamber body of coiling the complex film, the both ends of spool are fixed with connecting portion, be provided with hot-blast system and room door on the curing chamber body, still include the track, sliding connection is in the blowing frame on the track, rotate the locking pivot that sets up on the relative both sides of blowing frame, set up the epaxial locking mechanism of locking pivot, the quantity of locking pivot is a plurality of, pass through chain drive between two adjacent locking pivots on one side of blowing frame, locking mechanism is including offering in the locking pivot and supplying the recess that connecting portion card goes into, with locking pivot sliding connection's first stopper. The composite films are heated in a curing chamber by winding a plurality of composite films on a reel, and then the composite films are dried.

The composite film curing chamber has the following defects: it will coil at epaxial complex film directly and send into the curing chamber and heat, because complex film coils unable expansion on the spool, and among the heating process, the complex film that is located the outside can preferentially receive the heating, and because the blockking of outer complex film, if the stoving time is not enough, then inlayer complex film just can't obtain fine heating, leads to being difficult to dry, if the stoving time is longer, then outer complex film is overheated and damage easily again.

Disclosure of Invention

In view of the above, it is necessary to provide a curing box after forming a plastic film, which addresses the problems of the prior art.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

a curing box for a plastic film after molding comprises a drying room and a goods shelf capable of sliding in and pulling out along the length direction of the drying room, wherein a plurality of drying layers are arranged on the goods shelf at equal intervals along the vertical direction, each drying layer is provided with an unreeling assembly for fully drying the plastic film, each unreeling assembly comprises a plurality of rotatable unreeling rollers arranged on the drying layers, a plurality of groups of limiting clamping rollers arranged on the drying layers at equal intervals and a rotatable reeling roller arranged on the drying layers, each group of limiting clamping rollers comprises a rotatable upper clamping roller and a rotatable lower clamping roller, the upper clamping rollers are elastically pressed downwards to form clamping rollers, the unreeling rollers and the reeling rollers are respectively hinged with a first hinged long plate and a second hinged long plate for compressing the corresponding end of the plastic film, the unwinding roller is inserted with a lock pin for locking the first hinged long plate, the lock pin can be transferred to the winding roller to lock the second hinged long plate, the middle part of the plastic film is clamped between the upper clamping roller and the lower clamping roller of the plurality of, the drying layer is further provided with a damping mechanism for increasing resistance borne by the winding roller during rotation, the damping mechanism comprises two dampers which are symmetrically arranged at two ends of the unwinding roller, each damper comprises an upper half cylinder and a lower half cylinder which are pressed up and down, a retarding sleeve which is coaxially fixedly connected with the corresponding end of the unwinding roller and a plurality of metal elastic sheets which are embedded on the retarding sleeve and elastically abut against the inner ring of the upper half cylinder or the inner ring of the lower half cylinder, and the shelf is further provided with a driving mechanism for synchronously driving the winding rollers to rotate.

Preferably, the damping mechanism further comprises a fixing seat fixedly connected with the corresponding drying layer and a first pressing block hinged to the fixing seat, a lower semicircular groove and an upper semicircular groove are formed in opposite sides of the fixing seat and the first pressing block respectively, and the upper semicircular cylinder and the lower semicircular cylinder are fixedly arranged in the upper semicircular groove and the lower semicircular groove respectively.

Preferably, the holding tank that sets up a plurality of one-to-one corresponding to a plurality of metal shrapnel on the slow sleeve, every the holding tank all includes that two are led to the groove along circumferencial direction interval distribution and one-to-one corresponding to the axial at metal shrapnel both ends, and the inboard that leads to the groove in every axial still sets up the interior heavy groove that is used for placing metal shrapnel and corresponds the end.

Preferably, the unwinding roller and one end of the first hinged long plate are both formed with a first locking hole used for being matched with a locking pin, the winding roller and one end of the second hinged long plate are both formed with a second locking hole used for being matched with the locking pin, and two ends of the first hinged long plate and two ends of the second hinged long plate are both formed with arc-shaped sinking grooves used for facilitating hand-held rotation.

Preferably, all link firmly two symmetries on every stoving layer and set up in the rolling seat at wind-up roll both ends, every equal coupling is provided with the connection cross axle in the rolling seat, and the one end of connecting the cross axle and being close to the wind-up roll articulates has the second compact heap that is used for linking firmly with the wind-up roll, and one of them connects the one end that the cross axle kept away from the wind-up roll and links to each other with the actuating mechanism transmission.

Preferably, every spacing double-layered roller of group still includes that two sets of symmetries set up in the connecting piece at last double-layered roller and lower double-layered roller both ends, every group the connecting piece all includes:

the lower fixing blocks are horizontally and fixedly connected to the corresponding drying layers, and two ends of the lower clamping roller are arranged on the two lower fixing blocks in a shaft connection mode;

two spacing vertical shafts which are arranged at intervals are fixedly connected to the lower fixing block and the drying layer vertically downwards;

the movable blocks are arranged on the two limiting vertical shafts in a sliding mode and are positioned above the lower fixed block, and two ends of the upper clamping roller are arranged on the two movable blocks in a shaft connection mode;

go up the fixed block, link firmly in two spacing vertical axis tops and be located the movable block top, every still the cover is equipped with the spring that both ends were contradicted respectively and are gone up fixed block and movable block on the spacing vertical axis.

Preferably, actuating mechanism includes gear motor, a plurality of synchronizing wheel and a plurality of hold-in range, and wherein gear motor is fixed to be set up in the goods shelves bottom, and the corresponding a plurality of that is located the below is connected the cross axle and is corresponded the end and all coaxially linked firmly two synchronizing wheels, and the connection cross axle of the top corresponds the end and coaxially linked firmly a synchronizing wheel, and the coaxial synchronizing wheel that has linked firmly on gear motor's the output shaft links to each other with the hold-in range between a plurality of synchronizing wheel.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the plastic film in the drying room is slowly conveyed to the winding roller from the unwinding roller for heating, so that the whole plastic film can be uniformly heated and dried, and the drying is more thorough and uniform;

secondly, damping mechanisms are arranged at two ends of the unwinding roller, and the upper clamping roller is elastically pressed down to clamp the plastic film, so that the plastic film is ensured to be always stretched straight without loosening or even dropping in the unwinding process, and the stable winding of the plastic film in the drying process is ensured.

Drawings

Fig. 1 is a schematic perspective view of the embodiment.

Fig. 2 is a schematic perspective view of a shelf and a plurality of unwinding assemblies according to the embodiment.

Fig. 3 is an enlarged view of a portion of a structure in fig. 2.

Fig. 4 is an enlarged view of a portion of the structure at B in fig. 2.

Fig. 5 is a partial perspective view of a shelf and a plurality of unwinding assemblies according to the embodiment.

Fig. 6 is an enlarged view of a portion of the structure at C in fig. 5.

FIG. 7 is an exploded view of the partial perspective structure of the bake layer, unwind roll and wind-up roll of an embodiment.

Fig. 8 is an enlarged view of a portion of the structure at D in fig. 7.

Fig. 9 is an enlarged view of a portion of the structure at F in fig. 8.

Fig. 10 is an enlarged view of a portion of the structure at E in fig. 7.

The reference numbers in the figures are:

1. a drying room; 2. a shelf; 3. drying the layer; 4. a plastic film; 5. unwinding rollers; 6. limiting the clamping roller; 7. a wind-up roll; 8. an upper nip roll; 9. a lower nip roll; 10. a first hinged long plate; 11. a second hinged long plate; 12. a lock pin; 13. an upper half cylinder; 14. a lower semi-cylinder; 15. a retarding sleeve; 16. a metal spring sheet; 17. a drive mechanism; 18. a fixed seat; 19. a first compact block; 20. an axial through slot; 21. an arc-shaped sinking groove; 22. a winding seat; 23. connecting a cross shaft; 24. a second compact block; 25. a lower fixed block; 26. limiting the vertical shaft; 27. a movable block; 28. an upper fixed block; 29. a spring; 30. a reduction motor; 31. a synchronizing wheel; 32. and (4) a synchronous belt.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 10, a curing box after forming a plastic film comprises a drying room 1 and a shelf 2 capable of sliding in and pulling out along the length direction of the drying room 1, wherein the shelf 2 is provided with a plurality of drying layers 3 arranged at equal intervals along the vertical direction, each drying layer 3 is provided with an unwinding assembly for fully drying the plastic film 4, each unwinding assembly comprises an unwinding roller 5 arranged on the drying layer 3 in a rotatable manner, a plurality of groups of limiting clamping rollers 6 arranged on the drying layer 3 at equal intervals and a winding roller 7 arranged on the drying layer 3 in a rotatable manner, each group of limiting clamping rollers 6 comprises an upper clamping roller 8 and a lower clamping roller 9 which can rotate, the upper clamping roller 8 elastically presses the lower clamping roller 9 downwards, the unwinding roller 5 and the winding roller 7 are respectively hinged with a first hinged long plate 10 and a second hinged long plate 11 which are used for pressing the corresponding end of the plastic film 4, the unwinding roller 5 is inserted with a lock pin 12 for locking the first hinged long plate 10, the lock pin 12 can be transferred to the winding roller 7 to lock the second hinged long plate 11, the middle part of the plastic film 4 is clamped between the upper clamping rollers 8 and the lower clamping rollers 9, the drying layer 3 is further provided with a damping mechanism for increasing resistance received by the winding roller 7 during rotation, the damping mechanism comprises two dampers symmetrically arranged at two ends of the unwinding roller 5, each damper comprises an upper semi-cylinder 13 and a lower semi-cylinder 14 which are pressed up and down, a retarding sleeve 15 coaxially fixed at the corresponding end of the unwinding roller 5 and a plurality of metal elastic sheets 16 which are embedded on the retarding sleeve 15 and elastically abut against the inner ring of the upper semi-cylinder 13 or the lower semi-cylinder 14, and the shelf 2 is further provided with a driving mechanism 17 for synchronously driving the winding rollers 7 to rotate.

Damping mechanism still includes the fixing base 18 that links firmly with corresponding stoving layer 3 and articulates the first compact heap 19 that sets up on fixing base 18, the opposite side of fixing base 18 and first compact heap 19 is moulded respectively down half slot and last half slot, last half cylinder 13 and lower half cylinder 14 are fixed respectively and are set up in last half slot and lower half slot.

First cylinder 13 and lower cylinder 14 inner circle all the shaping have a plurality of along circumferencial direction evenly distributed and be used for increasing the axial groove of frictional force, first compact heap 19 is articulated mutually with the fixed block and can be rotatory round articulated department, and first compact heap 19 is rotatory and make first cylinder 13 and lower cylinder 14 compress tightly behind the corresponding a plurality of metal shrapnel 16, can lock first compact heap 19 on fixing base 18 through the screw, and so can realize unreeling 5 detachable connections on two fixing bases 18 of roller.

Set up the holding tank that a plurality of one-to-one corresponds to a plurality of metal shrapnel 16 on the sleeve 15 of slowing down, every the holding tank all includes two along circumferencial direction interval distribution and the one-to-one leads to groove 20 in the axial at 16 both ends of metal shrapnel, and the inboard that leads to groove 20 in every axial still sets up the interior heavy groove that is used for placing metal shrapnel 16 and corresponds the end.

The inner sinking groove is not shown in the figure, the metal elastic sheet 16 is of a structure shown in figure 9, the metal elastic sheet 16 is made of wear-resistant materials, the metal elastic sheet 16 is arranged on the retarding sleeve 15, then the retarding sleeve 15 is fixed on the corresponding end of the unwinding roller 5, together with the retarding sleeve 15 and the metal elastic sheets 16, is placed on the lower half cylinder 14, then the first pressing block 19 is closed, so that the upper half cylinder 13 presses the metal elastic sheet 16 above the upper half cylinder, when the subsequent unwinding roller 5 rotates, the metal elastic sheets 16 elastically abut against the inner ring of the upper half cylinder 13 or the lower half cylinder 14 and generate friction, so that the friction force borne by the unwinding roller 5 during rotation is increased, the rotating speed of the unwinding roller 5 is relieved, after the plastic film 4 stretches out from the unwinding roller 5 and passes through the limiting clamping rollers 6 and is arranged on the winding roller 7, when the winding roller 7 actively rotates to pull the plastic film 4, the plastic film 4 on the unwinding roller 5 stretches out slowly, the plastic film 4 between the unwinding roller 5 and the winding roller 7 is not loosened in a stretched state, and can be dried more easily, and even the plastic film can not fall down excessively.

Unreel that roller 5 and first articulated long slab 10 one end all take shape and be used for cooperating the first lockhole of lockpin 12, wind-up roll 7 and the articulated long slab 11 one end of second all take shape and be used for cooperating the second lockhole of lockpin 12, first articulated long slab 10 both ends and the articulated long slab 11 both ends of second all take shape and be used for conveniently handing pivoted arc heavy groove 21.

The first locking hole and the second locking hole are not shown in the figure, the first hinged long plate 10 and the second hinged long plate 11 are identical in structure and are both arc-shaped long plate structures, the first locking hole and the second locking hole are identical in structure, the lock pin 12 is of the structure shown in the figure 10 and comprises a handheld portion and two locking columns, the first locking hole comprises cylindrical holes which are formed in the unwinding roller 5 and the first hinged long plate 10 respectively and are adapted to the structures of the two locking columns respectively, the two locking columns are inserted into the two cylindrical holes respectively after the handheld portion is grasped, the first hinged long plate 10 can be locked on the unwinding roller 5 through interference fit of the two locking columns and the two cylindrical holes, and rubber layers used for preventing the plastic film 4 from sliding are attached to inner rings of the first hinged long plate 10 and the second hinged long plate 11.

Every stoving layer 3 is last all to have linked firmly two symmetries and to set up in the rolling seat 22 at wind-up roll 7 both ends, every all the coupling is provided with in the rolling seat 22 and connects cross axle 23, connects that cross axle 23 is close to that the one end of wind-up roll 7 articulates there is the second compact heap 24 that is used for linking firmly with wind-up roll 7, and one of them is connected cross axle 23 and is kept away from the one end of wind-up roll 7 and link to each other with actuating mechanism 17 transmission.

Both ends of wind-up roll 7 all are moulded and are had the quadrangular structure, connect all the shaping of the side in opposite directions of 23 corresponding ends of cross axle and second compact heap 24 of cross axle and be used for fixing the edge groove that 7 corresponds end quadrangular structure of wind-up roll, and can be fixed in on connecting cross axle 23 through the screw after second compact heap 24 rotatory compresses tightly wind-up roll 7, so wind-up roll 7 can detachable connect on two rolling seats 22, also can follow and correspond and connect the rotation of cross axle 23 and rotate.

Every group spacing clamp roller 6 still includes that two sets of symmetries set up in the connecting piece at last clamp roller 8 and lower clamp roller 9 both ends, every group the connecting piece all includes:

the lower fixing blocks 25 are horizontally and fixedly connected to the corresponding drying layers 3, and two ends of the lower clamping roller 9 are axially connected to the two lower fixing blocks 25;

two spacing vertical shafts 26 which are arranged at intervals are vertically and downwards fixedly connected to the lower fixing block 25 and the drying layer 3;

the movable blocks 27 are arranged on the two limiting vertical shafts 26 in a sliding mode and are positioned above the lower fixed block 25, and two ends of the upper clamping roller 8 are arranged on the two movable blocks 27 in a shaft connection mode;

go up fixed block 28, link firmly in two spacing vertical axis 26 tops and be located the movable block 27 top, every still the cover is equipped with the spring 29 that both ends contradict fixed block 28 and movable block 27 respectively on the spacing vertical axis 26.

The movable blocks 27 are vertically pressed downwards to the lower fixed blocks 25 under the action of the two springs 29, the upper clamping roller 8 and the lower clamping roller 9 are always kept horizontal, the two movable blocks 27 can drive the upper clamping roller 8 to press the lower clamping roller 9 after being pressed downwards, so that the plastic film 4 is pressed between the upper clamping roller 8 and the lower clamping roller 9, after the plastic film 4 is rotationally pulled by the winding roller 7, the corresponding sections of the plastic film 4 can be kept stretched straight and not loosened due to the pressing force of the upper clamping roller 8 and the lower clamping roller 9 on the plastic film 4, and damping mechanisms arranged between the upper clamping roller 8 and the two movable blocks 27 and between the lower clamping roller 9 and the two fixed blocks can be additionally arranged between the unwinding roller 5 and the two fixed seats 18 so as to further keep the stretched straight state of the plastic film 4.

Actuating mechanism 17 includes gear motor 30, a plurality of synchronizing wheel 31 and a plurality of hold-in range 32, and wherein gear motor 30 is fixed to be set up in 2 bottoms on goods shelves, and the corresponding a plurality of that is located the below is connected 23 corresponding ends of cross axle and is all coaxially linked firmly two synchronizing wheels 31, and the connection 23 corresponding ends of cross axle of the top are coaxially linked firmly a synchronizing wheel 31, and the coaxial synchronizing wheel 31 that has linked firmly on gear motor 30's the output shaft, links to each other with hold-in range 32 between a plurality of synchronizing wheel 31.

After gear motor 30's output shaft is rotatory, just can drive a plurality of connection cross axle 23 synchronous revolution of corresponding end through a plurality of synchronizing wheel 31 and a plurality of hold-in range 32, thereby drive a plurality of wind-up roll 7 synchronous revolution, and the direction of turning to of a plurality of wind-up roll 7 is unanimous, and then will unreel plastic film 4 on the roll 5 and emit, plastic film 4 rolling on the wind-up roll 7, be equipped with two symmetries in the baking house 1 and set up and be used for keeping 2 moving direction's of goods shelves slide rail (not shown in the figure), 2 bottoms of goods shelves link firmly the pulley that a plurality of slided and set up on two slide rails, and goods shelves 2 are close to the one end in the 1 outside of baking house still link firmly two symmetries and set up and slide and set up in subaerial truckle, when pulling out baking house 1 with goods shelves 2, two truckles cooperate a plurality of pulley can keep goods shelves 2's motion stationary.

The working principle is as follows: the plastic film 4 is in a strip-shaped coiling structure, the plastic film 4 is manually coiled on the uncoiling roller 5 before entering the drying room 1, one end of the plastic film 4 is fixed on the uncoiling roller 5 through the first hinged long plate 10 and the first hinged long plate 10 is fixed through the lock pin 12 during coiling, the plastic film 4 can be easily coiled on the uncoiling roller 5 after coiling, then two ends of the uncoiling roller 5 are manually arranged on the two corresponding fixing seats 18, the corresponding metal elastic sheets 16 are tightly pressed between the upper half cylinder 13 and the lower half cylinder 14 through the first pressing block 19, then the outer end of the plastic film 4 is drawn out and the plastic film 4 passes through the limiting clamping rollers, so that each upper clamping roller 8 and each lower clamping roller 9 clamp the plastic film 4, the corresponding end of the plastic film 4 is finally clamped on the coiling roller 7, at this moment, the lock pin 12 on the uncoiling roller 5 can be drawn out, the plastic film unwinding device is inserted into a second lock hole to enable a second hinged long plate 11 to be locked, and because a large number of plastic films 4 are still coiled on the unwinding roller 5 at the moment, the first hinged long plate 10 cannot be loosened directly, so that the corresponding ends of the plastic films 4 fall off, after the plastic films 4 on each drying layer 3 are placed according to the steps, the speed reducing motor 30 is started, the speed reducing motor 30 drives the plurality of winding rollers 7 to rotate synchronously and synchronously in the same direction, and then the plastic films 4 on the unwinding roller 5 are gradually unwound onto the winding rollers 7, the plurality of damping mechanisms are matched with the plurality of limiting clamping rollers to ensure that the plastic films 4 between the unwinding roller 5 and the winding rollers 7 are always in a stretched state, the plastic films 4 are ensured not to be loosened or collapsed, and can be dried better, so that after the whole plastic film 4 on the unwinding roller 5 is unwound, because the lock pins 12 on the first hinged long plate 10 are taken out, the plastic films 4 at the corresponding ends can also be separated easily, and finally make whole plastic film 4 roll up to wind-up roll 7 on, through carrying out the timing operation to gear motor 30, can guarantee that after plastic film 4 completely rolled up to wind-up roll 7, a plurality of wind-up roll 7 stops rotatoryly in step to follow the manual work takes out a plurality of wind-up roll 7, can collect a plurality of plastic film 4 of drying.

The above examples only show one or more embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A curing box for a plastic film after being formed comprises a drying room (1) and a goods shelf (2) capable of sliding in and pulling out along the length direction of the drying room (1), and is characterized in that a plurality of drying layers (3) are arranged on the goods shelf (2) at equal intervals along the vertical direction, each drying layer (3) is provided with an unwinding assembly for fully drying the plastic film (4), each unwinding assembly comprises an unwinding roller (5) which can rotate and is arranged on the drying layer (3), a plurality of groups of limiting clamping rollers (6) which are arranged on the drying layer (3) at equal intervals and a winding roller (7) which can rotate and is arranged on the drying layer (3), each group of limiting clamping rollers (6) comprises an upper clamping roller (8) and a lower clamping roller (9) which can rotate, the upper clamping roller (8) and the lower clamping roller (9) are elastically pressed downwards, the unwinding roller (5) and the upper clamping roller (7) are respectively hinged with a first hinged plate (10) and a second hinged plate (11) which are used for pressing the corresponding ends of the plastic film (4), the upper clamping roller (5) and the second clamping roller (7) are hinged with a lock pin (12), and the upper clamping roller (8) and the upper clamping roller (7) and the locking pin (12) are hinged with the upper clamping roller (12), the drying layer (3) is also provided with a damping mechanism for increasing resistance borne by the winding roller (7) during rotation, the damping mechanism comprises two dampers which are symmetrically arranged at two ends of the unwinding roller (5), each damper comprises an upper semi-cylinder (13) and a lower semi-cylinder (14) which are pressed up and down, a retarding sleeve (15) coaxially connected with a corresponding end of the unwinding roller (5) and a plurality of metal elastic sheets (16) which are embedded on the retarding sleeve (15) and elastically abut against the inner ring of the upper semi-cylinder (13) or the inner ring of the lower semi-cylinder (14), a goods shelf (2) is also provided with a driving mechanism (17) for synchronously driving a plurality of winding rollers (7) to rotate, the retarding sleeve (15) is provided with a plurality of accommodating grooves which are one by one corresponding to a plurality of metal elastic sheets (16), each accommodating groove comprises two axial through grooves (20) which are distributed at intervals along the circumferential direction and one by one correspond to two ends of the metal elastic sheets (16), the inner side of each axial through groove (20) is also provided with a winding end corresponding to the metal elastic sheet (16), each accommodating groove (23) is symmetrically arranged at the winding roller (3), and two transverse shafts (23) are connected with the winding roller (7), and two compressing seats (22) are symmetrically hinged with the winding roller (7), one of them is connected cross axle (23) and is kept away from the one end of wind-up roll (7) and link to each other with actuating mechanism (17) transmission, actuating mechanism (17) include gear motor (30), a plurality of synchronizing wheel (31) and a plurality of hold-in range (32), wherein gear motor (30) are fixed to be set up in goods shelves (2) bottom, the corresponding a plurality of that is located the below is connected cross axle (23) and is corresponded the equal coaxial two synchronizing wheel (31) that have linked firmly of end, the connection cross axle (23) of the top corresponds the end and has linked firmly one synchronizing wheel (31) coaxially, coaxial one synchronizing wheel (31) have linked firmly on the output shaft of gear motor (30), link to each other with hold-in range (32) between a plurality of synchronizing wheel (31)

A first lock hole used for being matched with the lock pin (12) is formed in each of the unwinding roller (5) and one end of the first hinged long plate (10), a second lock hole used for being matched with the lock pin (12) is formed in each of the winding roller (7) and one end of the second hinged long plate (11), and arc-shaped sinking grooves (21) convenient to rotate in a handheld mode are formed in each of the two ends of the first hinged long plate (10) and the two ends of the second hinged long plate (11);

every spacing clamp roller of group (6) still includes that two sets of symmetries set up in the connecting piece at last clamp roller (8) and lower clamp roller (9) both ends, every group the connecting piece all includes: the lower fixing blocks (25) are horizontally and fixedly connected to the corresponding drying layers (3), and two ends of the lower clamping roller (9) are axially connected to the two lower fixing blocks (25); two spacing vertical shafts (26) which are arranged at intervals are vertically and downwards fixedly connected to the lower fixing block (25) and the drying layer (3); the movable blocks (27) are arranged on the two limiting vertical shafts (26) in a sliding mode and are positioned above the lower fixed block (25), and two ends of the upper clamping roller (8) are arranged on the two movable blocks (27) in a shaft connection mode; go up fixed block (28), link firmly in two spacing vertical axis (26) tops and be located movable block (27) top, every still the cover is equipped with spring (29) that both ends contradicted fixed block (28) and movable block (27) respectively on spacing vertical axis (26).

2. The curing box for the plastic film after molding as claimed in claim 1, wherein the damping mechanism further comprises a fixing seat (18) fixedly connected with the corresponding drying layer (3) and a first pressing block (19) hinged on the fixing seat (18), the opposite sides of the fixing seat (18) and the first pressing block (19) are respectively formed with a lower semicircular groove and an upper semicircular groove, and the upper semicircular cylinder (13) and the lower semicircular cylinder (14) are respectively and fixedly arranged in the upper semicircular groove and the lower semicircular groove.