CN215098378U

CN215098378U - Novel straight line filling buckle closure capper of a quick-witted double-purpose

Info

Publication number: CN215098378U
Application number: CN202120889293.9U
Authority: CN
Inventors: 陈全红; 孙召永; 陆勇; 王振峰
Original assignee: Jiangsu Shenyi Machinery Co ltd
Current assignee: Jiangsu Shenyi Machinery Co ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-10
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses a novel sharp filling buckle closure capper of a quick-witted double-purpose, this kind of novel sharp filling buckle closure capper of a quick-witted double-purpose includes the frame, set up the transmission assembly on the frame workstation, transmission assembly drive mould board removes, transmission assembly input butt joint is provided with the rotatory cup mechanism that falls of spiral cover cup and the straight cup mechanism that disclose that falls of circular cup, it examines the sensor to set gradually the cup on transmission assembly direction of delivery's the workstation along the transmission assembly, feeding device, buckle closure mechanism, inhale powder device and film heat sealing device, feeding device below discharge gate butt joint is provided with reinforced raise powder and inhales powder mechanism, the output butt joint of transmission assembly is provided with out the cup and gets and put the manipulator. In this way, the utility model discloses can be used as in the canning, the buckle closure and the sealing of circular cup and the different cup types of spiral cover cup, a tractor serves several purposes realizes regular controllable single cup buckle closure, can realize that the ration stores up the cup and stores up the lid, convenient operation, and is with low costs, strong adaptability, can realize automatic semi-automatization production.

Description

Novel straight line filling buckle closure capper of a quick-witted double-purpose

Technical Field

The utility model relates to a product packaging technical field especially relates to a novel straight line filling buckle closure capper of a quick-witted double-purpose.

Background

After the food production is finished, in order to ensure that the food is not polluted in the transportation process, the food needs to be filled and sealed, the steps are mostly finished manually in the current market, the labor capacity is large, the cost is high, the efficiency is low, aiming at the filling and sealing of the capsule cup, the processes of cup falling, cup inspection, feeding stations, powder pressing and sucking, film releasing, cutting and sealing, secondary heat sealing, cup discharging and the like are arranged, the current market also has related equipment, but a plurality of equipment are required to be matched for completion, the occupied area is large, the manufacturing cost is high, the operation and maintenance are inconvenient, in addition, related production lines are also arranged in the market, along with the diversity of the market development, the filling of different cup types becomes a trend, aiming at the filling of different cup types, the production lines are different except for individual stations, most production stations such as material detection, filling, packaging, blanking and the like are the like, and the current single equipment can only produce one product, different cup types correspond corresponding production lines, which undoubtedly causes the waste of a little resource, and based on the defects and the defects, the prior art is necessarily improved, and a novel straight line filling, buckling and capping sealing machine with double purposes is designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a novel straight line filling buckle closure capper of a quick-witted double-purpose, compact structure operates steadily, can be used to canning, the buckle closure and the sealing of the different cup types of circular cup and spiral cover cup, and a tractor serves several purposes realizes regular controllable single cup buckle closure, can realize that the ration stores up the cup and stores up the lid, convenient operation, and with low costs, strong adaptability can realize automatic semi-automatization production.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a novel sharp filling buckle closure capper of a quick-witted double-purpose, this kind of novel sharp filling buckle closure capper of a quick-witted double-purpose includes the frame, set up the transmission assembly on the frame workstation, transmission assembly drive mould board removes, transmission assembly input butt joint is provided with the rotatory cup mechanism of falling of spiral cover cup and the straight cup mechanism of disclosing of circular cup, it examines the sensor to have set gradually the cup on transmission assembly direction of delivery's the workstation, feeding device, buckle closure mechanism, inhale powder device and film sealing device, feeding device below discharge gate butt joint is provided with reinforced raise powder and inhales powder mechanism, the output butt joint of transmission assembly is provided with out the cup and gets and put the manipulator.

Preferably, the rotary cup falling mechanism comprises a rotary cup arranging vibration disc, a rotary cup feeding conveying belt and a double-station rotary cup grabbing manipulator, the rotary cup arranging vibration disc vibrates frequently to orderly vibrate the rotary cup out to the rotary cup feeding conveying belt, and the double-station rotary cup grabbing manipulator grabs the rotary cup at the tail end of the conveying and then sequentially places the rotary cup in a mold plate.

Preferably, the mechanism that falls is directly disclosed to circular cup includes the base, manages cup vibration dish, send cup slide rail, level sensor, presses the cup board, keeps off a cup subassembly and the subassembly that falls, install the reason cup vibration dish that is equipped with circular cup on the base, the export butt joint of reason cup vibration dish is provided with and sends the cup slide rail, send cup slide rail both sides to be provided with level sensor, send cup slide rail top to be provided with the pressure cup board that prevents that the cup extrusion from dropping, send cup slide rail discharge gate to install and keep off cup subassembly and the subassembly that falls, fall the cup subassembly and be located directly over the mould board.

Preferably, the cup blocking assembly comprises a rotating shaft frame, a material stirring rotating shaft, a limiting cylinder, a connecting rod and a shifting rod, the rotating shaft frame is arranged at the side end of a discharge port of the cup feeding sliding rail, the rotatable material stirring rotating shaft is inserted in the rotating shaft frame, the limiting cylinder horizontally arranged is further arranged at one side end of the discharge port of the cup feeding sliding rail, a piston rod of the limiting cylinder is movably connected with the material stirring rotating shaft through the connecting rod, and the shifting rod is radially inserted in the material stirring rotating shaft.

Preferably, the cup subassembly that falls includes the opening seat, the rotation axis, the door shaped plate, the negative weight piece, the separation blade, the cylinder mounting bracket, cup cylinder and pressure head fall, the opening seat is installed to two vertical board front ends of pivot frame, the cartridge has rotatable rotation axis on the opening seat, the separation blade passes through the screw lock and attaches to the rotation axis on, the door shaped plate is installed to two opening seat front ends, the bottom plate that send the cup slide rail is located the door shaped plate, be equipped with the blanking mouth on sending the bottom plate of cup slide rail, the negative weight piece is installed to the one end that two rotation axes passed the door shaped plate, the negative weight piece is vertical state under self gravity, two separation blades are at the level closure state this moment, the cylinder mounting bracket is vertical in the discharge gate department that sends the cup slide rail, install the cup cylinder that falls on the cylinder mounting bracket, install the pressure head on the piston rod of cup cylinder that falls, the pressure head is located blanking mouth top.

Preferably, the feeding, powder raising and powder sucking mechanism comprises a powder sucking side plate, a lifting cylinder, a lifting mounting plate, a conical filling head, a blanking cover plate and a vacuum suction head welding assembly, the powder absorbing side plate is vertically fixed on the workbench, the lifting cylinder is installed on the powder absorbing side plate, the lifting mounting plate horizontally arranged is installed on a piston rod flange plate of the lifting cylinder, the lifting cylinder drives the lifting mounting plate to move up and down, the extending end of the lifting mounting plate is provided with an avoiding opening, a conical filling head is installed on the lifting mounting plate below the avoiding opening, a feeding hole above the conical filling head is opposite to the avoiding opening, a feeder of the feeding device is inserted in the conical filling head, the upper end of the conical filling head is provided with a blanking cover plate, the aperture of the blanking cover plate is smaller than that of a feeding hole of the conical filling head, so that the material can be prevented from splashing, and a vacuum suction head welding assembly is sleeved outside the conical filling head; vacuum suction head welding set is including inhaling powder cover, linking bridge and quick change coupler, inhale powder cover on the toper filling head, inhale on the powder cover is fixed in the lift mounting panel through the linking bridge, it is equipped with the die cavity of breathing in to inhale powder cover lower extreme, inhale the powder cover on install with the communicating quick change coupler of die cavity of breathing in, the external vacuum generator of quick change coupler.

Preferably, the film heat sealing device comprises a film sucking device fixed on the workbench and used for grabbing the film on the cup body, a film sensing device for detecting the existence of the film and a film sealing heat sealing device for sealing the film.

Compared with the prior art, the beneficial effects of the utility model are that:

the automatic cover-screwing device has the advantages of compact structure, stable operation, multiple purposes, realization of regular and controllable single-cup cover-screwing, realization of quantitative cup storage and cover storage, convenient operation, low cost, strong adaptability and realization of automatic semi-automatic production, and can be used for canning, cover-screwing and sealing of different cup types of circular cups and cover-screwing cups;

the powder mechanism is inhaled in reinforced powder that raises can realize that the reinforced process and the charge door of circular cup and abnormal shape cup raise the powder clean, realizes regular controllable clearance mode, can cooperate other application modules to realize automatic semi-automatization production.

Drawings

Fig. 1 is a schematic view of a first view structure of a novel linear filling, capping and sealing machine with a dual-purpose machine.

Fig. 2 is a second view structural schematic diagram of a novel linear filling, capping and sealing machine with a dual-purpose machine.

Fig. 3 is a structural schematic diagram of a straight poking and cup dropping mechanism of a novel straight-line filling and cover-buckling sealing machine with two functions.

Fig. 4 is a structural schematic diagram of a cup blocking assembly of the novel linear filling, capping and sealing machine with one machine and two functions.

Fig. 5 is a structural schematic diagram of a cup dropping assembly of the novel linear filling, cap-buckling and sealing machine with one machine and two purposes.

Fig. 6 is a structural schematic diagram of a feeding, powder-lifting and powder-sucking mechanism of a novel linear filling, capping and sealing machine with a dual-purpose machine.

Fig. 7 is a cross-sectional view of a feeding, powder-lifting and powder-sucking mechanism of a novel linear filling, capping and sealing machine with two purposes.

Fig. 8 is a schematic view of the cap rotating cup and the cap.

Figure 9 is a schematic view of a circular cup.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.

Referring to fig. 1 to 9, an embodiment of the present invention includes:

the utility model provides a novel sharp filling buckle closure capper of a quick-witted double-purpose, this kind of novel sharp filling buckle closure capper of a quick-witted double-purpose includes frame 1, set up transmission assembly 2 on 1 workstation of frame, 2 drive mould boards in the transmission assembly remove, 2 input butt joints in the transmission assembly are provided with the rotatory cup mechanism of falling 3 of the rotatory cup of covering cup and the cup mechanism of falling 4 of directly disclosing of circular cup, it examines sensor 5 to have set gradually the cup on 2 direction of delivery's of transmission assembly workstation along the transmission assembly, feeding device 6, buckle closure mechanism 7, inhale powder device 8 and

film sealing device

9, 6 below discharge gate butt joints of feeding device are provided with reinforced raise powder and inhale powder mechanism 10, the output butt joint of transmission assembly 2 is provided with out the cup and gets manipulator 11.

The rotary cup falling mechanism 3 for the spiral cover cup comprises a spiral cover cup arranging vibration disc 31, a spiral cover cup feeding cup conveying belt 32 and a double-station rotary cup grabbing manipulator 33, the spiral cover cup arranging vibration disc 31 orderly shakes out the spiral cover cup through frequency vibration of the spiral cover cup feeding cup conveying belt 32, and the double-station rotary cup grabbing manipulator 33 sequentially places the conveying tail end spiral cover cup in a mold plate after grabbing.

The straight cup mechanism 4 that falls of disclosing of circular cup includes base 41, reason cup vibration dish 42, send cup slide rail 43, level sensor 44, presses cup board 45, keeps off cup subassembly 46 and the subassembly 47 that falls, install the reason cup vibration dish 42 that is equipped with circular cup on the base 41, the export butt joint of reason cup vibration dish 42 is provided with and sends cup slide rail 43, send cup slide rail 43 both sides to be provided with level sensor 44, send cup slide rail 43 top to be provided with and prevent the cup extrusion cup board 45 that drops, send cup slide rail 43 discharge gate to install and keep off cup subassembly 46 and the subassembly 47 that falls, fall cup subassembly 47 and be located directly over the mould board.

The cup blocking assembly 46 comprises a rotating shaft frame 461, a material stirring rotating shaft 462, a limiting cylinder 463, a connecting rod 464 and a shifting rod 465, wherein the rotating shaft frame 461 is installed at the side end of a discharge port of the cup feeding sliding rail 43, the rotatable material stirring rotating shaft 462 is inserted in the rotating shaft frame 461, the limiting cylinder 463 horizontally arranged is further installed at one side end of the discharge port of the cup feeding sliding rail 43, a piston rod of the limiting cylinder 463 is movably connected with the material stirring rotating shaft 462 through the connecting rod 464, the shifting rod 465 is radially inserted in the material stirring rotating shaft 462, the connecting rod 464 is rotated through the limiting cylinder 463, the shifting rod 465 on the material stirring rotating shaft 462 is never driven to rotate, and the extending end of the shifting rod 465 blocks a second round cup when rotating to the lower side.

The cup drop assembly 47 includes an opening seat 471, a rotating shaft 472, a door-shaped plate 473, a weight 474, a baffle 475, a cylinder mount 476, a cup drop cylinder 477, and a ram 478, opening seats 471 are installed at the front ends of two vertical plates of the rotating shaft frame 461, a rotatable rotating shaft 472 is inserted into the opening seats 471, the blocking pieces 475 are locked on the rotating shaft 472 through screws, door-shaped plates 473 are installed at the front ends of the two opening seats 471, the bottom plate of the cup feeding sliding rail 43 is located on the door-shaped plates 473, a material dropping port is formed in the bottom plate of the cup feeding sliding rail 43, negative weights 474 are installed at one ends, penetrating through the door-shaped plates 473, of the two rotating shafts 472, the negative weights 472 are in a vertical state under the self gravity, at the moment, the two blocking pieces 475 are in a horizontal closed state, the cylinder mounting frame 476 is vertical to the material discharging port of the cup feeding sliding rail 43, a cup dropping cylinder 477 is installed on the cylinder mounting frame 476, a pressure head 478 is installed on a piston rod of the cup dropping cylinder 477, and the pressure head 478 is located above the material dropping port.

The feeding and powder-lifting powder-sucking mechanism 10 comprises a powder-sucking side plate 101, a lifting cylinder 102, a lifting mounting plate 103, a conical filling head 104, a discharging cover plate 105 and a vacuum suction head welding assembly 106, wherein the powder-sucking side plate 101 is vertically fixed on a workbench, the lifting cylinder 102 is mounted on the powder-sucking side plate 101, the lifting mounting plate 103 horizontally arranged is mounted on a piston rod flange plate of the lifting cylinder 102, the lifting mounting plate 103 is driven by the lifting cylinder 102 to move up and down, an avoiding opening is formed in an extending end of the lifting mounting plate 103, the conical filling head 104 is mounted on the lifting mounting plate 103 below the avoiding opening, a feeding port above the conical filling head 104 is opposite to the avoiding opening, a feeder of a feeding device 6 is inserted into the conical filling head 104, the discharging cover plate 105 is mounted at the upper end of the conical filling head 104, the aperture of the discharging cover plate 105 is smaller than that of the conical filling head 104, so as to prevent materials from splashing, a vacuum suction head welding assembly 106 is sleeved outside the conical filling head 104; vacuum suction head welding set 106 is including inhaling powder cover 1061, linking bridge 1062 and quick change coupler 1063, inhale powder cover 1061 cover on toper filling head 104, inhale powder cover 1061 and be fixed in on the lift mounting panel 103 through linking bridge 1062, inhale powder cover 1061 lower extreme and be equipped with the die cavity of breathing in, inhale install on the powder cover 1061 and breathe in the communicating quick change coupler 1063 of die cavity, the external vacuum generator of quick change coupler 1063, when the charging means during operation, inside the first 104 insert cup of toper filling head, the powder of raising is drawn in the evacuation in the vacuum suction head welding set 106 simultaneously.

The film heat sealing device 9 comprises a film sucking device 91 fixed on the workbench and used for grabbing a film on the cup body, a film sensing device 92 for detecting whether a film exists or not and a film sealing heat sealing device 93 for sealing the film.

The utility model relates to a novel sharp filling buckle closure capper during operation of a quick-witted double-purpose, when the target product is the spiral cover cup, the operating procedure is following: the rotary cup-falling mechanism 3 of the rotary cup-covering mechanism starts working, the vibration disc 31 of the rotary cup-covering mechanism orderly vibrates the rotary cup-covering to the cup-feeding conveyer belt 32 of the rotary cup-covering, the double-station rotary cup-grabbing manipulator 33 grabs the rotary cup-covering at the conveying end and then sequentially places the rotary cup-covering in the mould plate of the transmission assembly 2, the mould plate moves backwards under the drive of the transmission assembly 2, the cup detection sensor 5 senses the existence of the rotary cup-covering, the feeding device 6 at the next station feeds the rotary cup-covering, the powder-lifting and absorbing mechanism 10 moves at the moment, when the feeder works, the conical can-filling head 104 is inserted into the cup, the vacuum suction head welding assembly 106 pumps the lifting powder, the cover-buckling mechanism 7 stably conveys the cup cover and fastens the cup cover on the rotary cup-covering, the mould plate continues moving backwards, the powder-absorbing device 8 absorbs the powder raised around the product, the film-sheet heat-sealing device 9 works to absorb the film to the cup mouth in the mould plate, and detecting whether a film exists or not, finally, carrying out heat sealing on the film, and after the heat sealing is finished, discharging the cup, taking and placing the mechanical arm 11 to take the shaft product.

When the target product is a round cup, the operation steps are as follows: the circular cup direct-poking cup dropping mechanism 4 starts to work, a circular cup is manually placed to enter the cup arranging vibration disc 42, the cup arranging vibration disc 42 goes out of the cup, the cup enters the cup feeding sliding rail 43, the circular cup is conveyed to the baffle piece 475 of the cup dropping assembly 47, the cup blocking assembly 46 starts to work at the moment, the connecting rod 464 is rotated through the limiting air cylinder 463, the poking rod 465 on the poking rotating shaft 462 is not driven to rotate, the extending end of the poking rod 465 blocks a second circular cup when rotating to the lower side, the piston of the cup dropping air cylinder 477 extends out to poke the circular cup on the baffle piece 475 to the mold plate, the cup dropping air cylinder 477 resets, the negative weight 472 is in a vertical state under the self gravity, the two baffle pieces 475 reset are in a closed state, the cup dropping is completed, the circular cup does not need to be covered, and other related actions of the cover-removing mechanism 7 in the subsequent steps are the same as the steps of the cover-rotating cup.

The utility model relates to a novel sharp filling buckle closure capper of a quick-witted double-purpose, compact structure operates steadily, can be used to the canning, the buckle closure and the sealing of the different types of cup type of circular cup and spiral cover cup, and a tractor serves several purposes realizes regular controllable single cup buckle closure, can realize that the ration stores up the cup and stores up the lid, convenient operation, and with low costs, strong adaptability can realize automatic semi-automatization production.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a novel sharp filling buckle closure capper of a quick-witted double-purpose which characterized in that: this kind of novel sharp filling buckle closure capper of a quick-witted double-purpose includes the frame, set up the transmission assembly on the frame workstation, transmission assembly drive mould board removes, the butt joint of transmission assembly input is provided with the rotatory cup mechanism that falls of the cover cup of revolving and the cup mechanism that falls of directly disclosing of circular cup, it examines the sensor to have set gradually the cup on transmission assembly direction of delivery's the workstation, feeding device, the buckle closure mechanism, inhale powder device and film sealing device, feeding device below discharge gate butt joint is provided with reinforced raise powder and inhales powder mechanism, the output butt joint of transmission assembly is provided with out the cup and gets and put the manipulator.

2. The novel linear filling, buckling and capping and sealing machine with double functions as claimed in claim 1, wherein: the rotary cup falling mechanism of the spiral cover cup comprises a spiral cover cup arranging vibration disc, a spiral cover cup feeding conveyer belt and a double-station rotary cup grabbing manipulator, wherein the spiral cover cup arranging vibration disc vibrates frequently to orderly vibrate out the spiral cover cup to the spiral cover cup feeding conveyer belt, and the double-station rotary cup grabbing manipulator grabs the conveying tail end of the spiral cover cup and then sequentially places the spiral cover cup in a mold plate.

3. The novel linear filling, buckling and capping and sealing machine with double functions as claimed in claim 1, wherein: the cup dropping mechanism is directly disclosed to circular cup includes base, reason cup vibration dish, send cup slide rail, level sensor, presses the cup board, keeps off a cup subassembly and the cup subassembly that drops, install the reason cup vibration dish that is equipped with circular cup on the base, the export butt joint of reason cup vibration dish is provided with and send the cup slide rail, send cup slide rail both sides to be provided with level sensor, send cup slide rail top to be provided with the pressure cup board that prevents the cup extrusion and drop, send cup slide rail discharge gate to install and keep off cup subassembly and the cup subassembly that drops, the cup subassembly that drops is located directly over the mould board.

4. The novel linear filling, buckling and capping and sealing machine with double functions as claimed in claim 3, wherein: the cup blocking assembly comprises a rotating shaft frame, a material stirring rotating shaft, a limiting cylinder, a connecting rod and a shifting rod, the rotating shaft frame is installed at the side end of a discharge port of a cup feeding slide rail, the rotating shaft frame is inserted with the rotatable material stirring rotating shaft, the limiting cylinder horizontally arranged is further installed at one side end of the discharge port of the cup feeding slide rail, a piston rod of the limiting cylinder is movably connected with the material stirring rotating shaft through the connecting rod, and the shifting rod is radially inserted in the material stirring rotating shaft.

5. The novel linear filling, buckling and capping and sealing machine with double functions as claimed in claim 3, wherein: the cup subassembly that falls includes the opening seat, the rotation axis, the gate plate, the negative weight piece, the separation blade, the cylinder mounting bracket, cup cylinder and pressure head fall, the opening seat is installed to two vertical board front ends of pivot frame, the cartridge has rotatable rotation axis on the opening seat, the separation blade passes through the screw lock and attaches to the rotation axis on, the gate plate is installed to two opening seat front ends, the bottom plate that send the cup slide rail is located the gate plate, be equipped with the blanking mouth on the bottom plate that sends the cup slide rail, the negative weight piece is installed to the one end that two rotation axes passed the gate plate, the negative weight piece is vertical state under self gravity, two separation blades are at horizontal closed state this moment, the cylinder mounting bracket is vertical in the discharge gate department that sends the cup slide rail, install the cup cylinder that falls on the cylinder mounting bracket, install the pressure head on the piston rod of the cup cylinder that falls, the pressure head is located blanking mouth top.

6. The novel linear filling, buckling and capping and sealing machine with double functions as claimed in claim 1, wherein: the feeding, powder raising and powder sucking mechanism comprises a powder sucking side plate, a lifting cylinder, a lifting mounting plate, a conical filling head, a discharging cover plate and a vacuum suction head welding assembly, the powder absorbing side plate is vertically fixed on the workbench, the lifting cylinder is installed on the powder absorbing side plate, the lifting mounting plate horizontally arranged is installed on a piston rod flange plate of the lifting cylinder, the lifting cylinder drives the lifting mounting plate to move up and down, the extending end of the lifting mounting plate is provided with an avoiding opening, a conical filling head is installed on the lifting mounting plate below the avoiding opening, a feeding hole above the conical filling head is opposite to the avoiding opening, a feeder of the feeding device is inserted in the conical filling head, the upper end of the conical filling head is provided with a blanking cover plate, the aperture of the blanking cover plate is smaller than that of a feeding hole of the conical filling head, so that the material can be prevented from splashing, and a vacuum suction head welding assembly is sleeved outside the conical filling head; vacuum suction head welding set is including inhaling powder cover, linking bridge and quick change coupler, inhale powder cover on the toper filling head, inhale on the powder cover is fixed in the lift mounting panel through the linking bridge, it is equipped with the die cavity of breathing in to inhale powder cover lower extreme, inhale the powder cover on install with the communicating quick change coupler of die cavity of breathing in, the external vacuum generator of quick change coupler.

7. The novel linear filling, buckling and capping and sealing machine with double functions as claimed in claim 1, wherein: the film heat sealing device comprises a film sucking device, a film sensing device and a film sealing heat sealing device, wherein the film sucking device is fixed on the workbench and used for grabbing a film on the cup body, the film sensing device is used for detecting whether the film exists or not, and the film sealing heat sealing device is used for sealing the film.