CN220948884U - Film pressing device and film sleeving equipment - Google Patents

Abstract

The utility model discloses a film pressing device and film sleeving equipment, wherein the film pressing device comprises a conveying table, a pressing plate, a mounting mechanism, a driving mechanism and an adjusting mechanism, wherein the conveying table is used for conveying a plurality of pigment bottles sleeved with packaging films; the pressing plate is movably arranged above the conveying table; the mounting mechanism is fixedly mounted on the conveying table; the driving mechanism comprises a driving motor, a crank and at least one guide rod, wherein the driving motor is fixedly arranged on the mounting mechanism, the upper end of the crank is connected with a motor shaft of the driving motor, the lower end of the crank is connected with the pressing plate, the guide rod is arranged in an extending manner along the up-down direction, the driving motor is fixedly connected with the mounting mechanism and the pressing plate, and the driving motor is in driving connection with the crank so as to drive the crank to rotate around the motor shaft, so that the pressing plate reciprocates along the up-down direction under the combined action of the crank and the guide rod; the adjusting mechanism is connected with the crank to adjust the position of the crank in the up-down direction; therefore, the pressing plate moves downwards to press the packaging film, so that errors between the actual film covering position and the preset film covering position of the packaging film are reduced, and the film sealing effect is improved.

Description

Film pressing device and film sleeving equipment

Technical Field

The utility model relates to the technical field of film sleeving, in particular to a film pressing device and film sleeving equipment.

Background

With the development of economy, the demand for the variety and number of products has increased, and many products (e.g., color bottles, etc.) need to be packaged using an outer packaging film. The product needs to be subjected to the procedures of film covering, edge sealing and corner cutting in the packaging process, and the film covering procedure is an important procedure for packaging the product, and directly influences the packaging quality of the product. The film coating refers to coating a layer of film on the outer surface of a product through a film coating machine.

At present, the equipment generally used for sleeving the bottle comprises a feeding device and a shrinking device, wherein the feeding device is used for sleeving the packaging film on a bottle cap and a bottle body of a product, and the shrinking device tightens the packaging film so that the packaging film is completely attached to the bottle. In-process that general material feeding unit was putting on the bottle with the packaging film, the packaging film slope cover of in-process is established, the packaging film takes place to rub with the body and hinders the packaging film removal scheduling factor to lead to appearing the packaging film and embolias the situation that the position is not put in place, the actual tectorial membrane position that the packaging film is located exists the error with predetermineeing the tectorial membrane position promptly, and then lead to follow-up telescoping device to tighten up the packaging film when laminating in the bottle surface, the actual laminating position of packaging film is different with predetermineeing the laminating position, and the fold appears easily to the packaging film for bottle envelope effect is poor, even need to rework, reduction in production efficiency, increase in production cost.

Disclosure of utility model

The utility model mainly aims to provide a film pressing device and film sleeving equipment, and aims to solve the problems.

In order to achieve the above object, the present utility model provides a film pressing device, including:

The conveying table is arranged in an extending manner along a first direction and is used for conveying a plurality of pigment bottles sleeved with packaging films, and the pigment bottles are sequentially distributed along the first direction;

The pressing plate is movably arranged above the conveying table;

the mounting mechanism is fixedly mounted on the conveying table;

The driving mechanism comprises a driving motor, a crank and at least one guide rod, wherein the driving motor is fixedly arranged on the mounting mechanism, the crank is arranged in an extending mode along the up-down direction, the upper end of the crank is connected with a motor shaft of the driving motor, the lower end of the crank is connected with the pressing plate, the guide rod is arranged in an extending mode along the up-down direction and is fixedly connected with the mounting mechanism and the pressing plate, and the driving motor is in driving connection with the crank so as to drive the crank to rotate around the motor shaft, and the pressing plate can reciprocate along the up-down direction relative to the conveying table under the combined action of the crank and the guide rod; and

The adjusting mechanism is arranged on the mounting mechanism and is connected with the crank so as to adjust the position of the crank in the up-down direction, so that the lowest position of the pressing plate in the up-down direction is adjustable;

wherein the first direction and the up-down direction are perpendicular in the plane.

Optionally, the mounting mechanism includes:

the mounting frame extends along the up-down direction and is fixedly arranged on one side of the conveying table; and

The connecting plate is arranged on the mounting frame and above the pressing plate and connected with the guide rod, the driving motor is arranged on the connecting plate, a through hole is formed in the connecting plate, and the lower end of the crank penetrates through the through hole and is connected with the pressing plate;

the adjusting mechanism is connected with the connecting plate and used for adjusting the position of the connecting plate in the up-down direction.

Optionally, the adjusting mechanism includes:

The screw rod is rotatably connected with the mounting frame and extends in the up-down direction; and

The adjusting block is sleeved on the periphery of the screw and fixedly connected with the connecting plate, and is in threaded connection with the screw so as to move up and down relative to the mounting frame when the screw rotates, so that the connecting plate is driven to move.

Optionally, the mounting frame comprises a mounting seat and a connecting rod, the mounting seat is fixedly mounted on the conveying table, and the connecting rod is mounted on the mounting seat and extends in the up-down direction;

The connecting plate is sleeved on the periphery of the connecting rod;

the screw rod is installed in the installation seat and is distributed with the connecting rod at intervals.

Optionally, the adjusting mechanism further comprises a turntable, and the turntable is fixedly installed at the upper end of the screw.

Optionally, the adjusting block is sleeved on the periphery of the connecting rod.

Optionally, two connecting rods are provided, and the two connecting rods are provided at two sides of the screw rod in the first direction.

Optionally, the platen is disposed to extend in the first direction.

Optionally, two guide rods are arranged, the two guide rods are distributed at intervals along the first direction, and the two guide rods are respectively arranged at two sides of the through hole.

The utility model also provides a film covering device for packaging a packaging film on a pigment bottle, comprising:

The feeding device is used for sleeving the packaging film outside the pigment bottle;

The film pressing device is used for pressing the packaging film outside the pigment bottle; and

The contraction device is used for tightly adhering the packaging film to the outer surface of the pigment bottle;

wherein, the film pressing device includes:

The conveying table is arranged in an extending manner along a first direction and is used for conveying a plurality of pigment bottles sleeved with packaging films, and the pigment bottles are sequentially distributed along the first direction;

The pressing plate is movably arranged above the conveying table;

the mounting mechanism is fixedly mounted on the conveying table;

The driving mechanism comprises a driving motor, a crank and at least one guide rod, wherein the driving motor is fixedly arranged on the mounting mechanism, the crank is arranged in an extending mode along the up-down direction, the upper end of the crank is connected with a motor shaft of the driving motor, the lower end of the crank is connected with the pressing plate, the guide rod is arranged in an extending mode along the up-down direction and is fixedly connected with the mounting mechanism and the pressing plate, and the driving motor is in driving connection with the crank so as to drive the crank to rotate around the motor shaft, and the pressing plate can reciprocate along the up-down direction relative to the conveying table under the combined action of the crank and the guide rod; and

The adjusting mechanism is arranged on the mounting mechanism and is connected with the crank so as to adjust the position of the crank in the up-down direction, so that the lowest position of the pressing plate in the up-down direction is adjustable;

wherein the first direction and the up-down direction are perpendicular in the plane.

In the technical scheme of the utility model, the film pressing device comprises a conveying table, a pressing plate, a mounting mechanism, a driving mechanism and an adjusting mechanism, wherein the conveying table is used for conveying the pigment bottles, the driving motor drives the crank to rotate around the motor shaft, the crank drives the pressing plate to move, and the guide rod extends in the up-down direction, so that the moving direction of the pressing plate is limited, and the pressing plate reciprocates in the up-down direction relative to the conveying table under the combined action of the crank and the guide rod; so, when the pigment bottle that the cover had the packaging film is carried to the below of clamp plate through carry the platform, the clamp plate is under drive mechanism's effect relative carry the platform and move down to the lowest position department from highest position department, realize pushing down the cover and establish the packaging film on the pigment bottle for the packaging film moves down to predetermineeing the cover membrane position department, then, the clamp plate is from lowest position department upward movement to highest position department, waits for next bottle pigment bottle to be carried to when pushing down under the clamp plate, so, significantly reduce the error of actual cover membrane position and the cover membrane position of predetermineeing of packaging film to when carrying to constriction device and tighten up laminating operation, can improve the sealing effect, reduce the rework rate, improve production efficiency, reduction in production cost. In addition, through setting up adjustment mechanism, can adjust the crank is upper and lower orientation is last, so can adjust the extreme low position of clamp plate, adjust the clamp plate be located when the extreme low position department with carry the interval between the platform, thereby applicable to the push down of the packaging film of not unidimensional pigment bottle, improve the practicality of film pressing device.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment of a film pressing device provided by the present utility model.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				100	Film pressing device	41	Driving motor
1	Conveying table	42	Crank arm
				2	Pressing plate	43	Guide rod
3	Mounting mechanism	5	Adjusting mechanism
				31	Mounting rack	51	Screw rod
311	Mounting base	52	Adjusting block
				312	Connecting rod	53	Turntable
32	Connecting plate	200	Pigment bottle
				321	Through hole	300	Packaging film
4	Driving mechanism

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

With the development of economy, the demand for the variety and number of products has increased, and many products (e.g., color bottles, etc.) need to be packaged using an outer packaging film. The product needs to be subjected to the procedures of film covering, edge sealing and corner cutting in the packaging process, and the film covering procedure is an important procedure for packaging the product, and directly influences the packaging quality of the product. The film coating refers to coating a layer of film on the outer surface of a product through a film coating machine.

At present, the equipment generally used for sleeving the bottle comprises a feeding device and a shrinking device, wherein the feeding device is used for sleeving the packaging film on a bottle cap and a bottle body of a product, and the shrinking device tightens the packaging film so that the packaging film is completely attached to the bottle. In-process that general material feeding unit was putting on the bottle with the packaging film, the packaging film slope cover of in-process is established, the packaging film takes place to rub with the body and hinders the packaging film removal scheduling factor to lead to appearing the packaging film and embolias the situation that the position is not put in place, the actual tectorial membrane position that the packaging film is located exists the error with predetermineeing the tectorial membrane position promptly, and then lead to follow-up telescoping device to tighten up the packaging film when laminating in the bottle surface, the actual laminating position of packaging film is different with predetermineeing the laminating position, and the fold appears easily to the packaging film for bottle envelope effect is poor, even need to rework, reduction in production efficiency, increase in production cost.

In view of the above, the present utility model provides a film pressing device 100 and a film covering device, wherein the film covering device is used for packaging a packaging film 300 on a pigment bottle 200, the film covering device comprises a feeding device, the film pressing device 100 and a shrinking device, the feeding device is used for covering the packaging film 300 outside the pigment bottle 200, the film pressing device 100 is used for pressing the packaging film 300 outside the pigment bottle 200, and the shrinking device is used for tightly fitting the packaging film 300 on the outer surface of the pigment bottle 200. Fig. 1 is a schematic diagram of an embodiment of a film pressing apparatus 100 according to the present utility model.

Referring to fig. 1, the film pressing device 100 includes a conveying table 1, a pressing plate 2, a mounting mechanism 3, a driving mechanism 4, and an adjusting mechanism 5, where the conveying table 1 is disposed to extend along a first direction, and is used for conveying a plurality of pigment bottles 200 sleeved with packaging films 300, and the plurality of pigment bottles 200 are sequentially distributed along the first direction; the pressing plate 2 is movably arranged above the conveying table 1; the mounting mechanism 3 is fixedly mounted on the conveying table 1; the driving mechanism 4 comprises a driving motor 41, a crank 42 and at least one guide rod 43, the driving motor 41 is fixedly arranged on the mounting mechanism 3, the crank 42 is arranged in an extending mode along the up-down direction, the upper end of the crank 42 is connected with a motor shaft of the driving motor 41, the lower end of the crank is connected with the pressing plate 2, the guide rod 43 is arranged in an extending mode along the up-down direction and is fixedly connected with the mounting mechanism 3 and the pressing plate 2, the driving motor 41 is in driving connection with the crank 42 so as to drive the crank 42 to rotate around the motor shaft, and therefore the pressing plate 2 can reciprocate along the up-down direction relative to the conveying table 1 under the combined action of the crank 42 and the guide rod 43; the adjusting mechanism 5 is arranged on the mounting mechanism 3 and is connected with the crank 42 to adjust the position of the crank 42 in the up-down direction so that the lowest position of the pressing plate 2 in the up-down direction is adjustable; wherein the first direction and the up-down direction are perpendicular in the plane.

In the technical scheme of the utility model, the film pressing device 100 comprises a conveying table 1, a pressing plate 2, a mounting mechanism 3, a driving mechanism 4 and an adjusting mechanism 5, wherein the conveying table 1 is used for conveying the pigment bottles 200, the driving motor 41 drives the crank 42 to rotate around the motor shaft, the crank 42 drives the pressing plate 2 to move, and the guide rod 43 extends along the up-down direction, so that the moving direction of the pressing plate 2 is limited, and the pressing plate 2 reciprocates along the up-down direction relative to the conveying table 1 under the combined action of the crank 42 and the guide rod 43; thus, when the pigment bottle 200 sleeved with the packaging film 300 is conveyed to the lower side of the pressing plate 2 through the conveying table 1, the pressing plate 2 moves downwards from the highest position to the lowest position relative to the conveying table 1 under the action of the driving mechanism 4, so that the packaging film 300 sleeved on the pigment bottle 200 is pressed downwards, the packaging film 300 moves downwards to the preset film sleeving position, then the pressing plate 2 moves upwards from the lowest position to the highest position, and the pressing plate 2 presses downwards when waiting for the next bottle of pigment bottle 200 to be conveyed to the lower side of the pressing plate 2, and errors of the actual film sleeving position and the preset film sleeving position of the packaging film 300 are greatly reduced, so that when the packaging film 300 is conveyed to a contraction device for tightening and laminating operation, the film sealing effect can be improved, the rework rate is reduced, the production efficiency is improved, and the production cost is reduced. In addition, by providing the adjusting mechanism 5, the position of the crank 42 in the up-down direction can be adjusted, so that the lowest position of the pressing plate 2, that is, the distance between the pressing plate 2 and the conveying table 1 when being positioned at the lowest position can be adjusted, thereby being applicable to the pressing down of the packaging film 300 of the pigment bottles 200 with different sizes and improving the practicability of the film pressing device 100.

In one embodiment of the present utility model, the lowest position of the platen 2 is a position where the platen 2 contacts the cap of the pigment bottle 200, and the highest position of the platen 2 is 0.5cm above the pigment bottle 200.

In the present utility model, the film pressing device 100 is applicable to film pressing of not only the dye bottle 200 but also bottles such as shower gel, hand sanitizer, and disinfectant.

Further, referring to fig. 1, the mounting mechanism 3 includes a mounting frame 31 and a connecting plate 32, wherein the mounting frame 31 extends in the up-down direction and is fixedly mounted on one side of the conveying table 1; the connecting plate 32 is mounted on the mounting frame 31 and is arranged above the pressing plate 2 and is connected with the guide rod 43, the driving motor 41 is mounted on the connecting plate 32, a through hole 321 is formed in the connecting plate, and the lower end of the crank 42 penetrates through the through hole 321 to be connected with the pressing plate 2; the adjusting mechanism 5 is connected with the connecting plate 32 and is used for adjusting the position of the connecting plate 32 in the up-down direction; thus, when the position of the connecting plate 32 is adjusted by the adjusting mechanism 5, the position of the driving mechanism 4 is driven to be adjusted, so that the pressing plate 2 is driven to move through the crank 42, namely, the lowest position of the pressing plate 2 is adjusted.

In the present utility model, the connection manner between the driving motor 41 and the connection plate 32 is not limited, and in particular, in an embodiment of the present utility model, the driving motor 41 is welded to the connection plate 32.

Further, referring to fig. 1, the adjusting mechanism 5 includes a screw 51 and an adjusting block 52, the screw 51 is rotatably connected to the mounting frame 31 and extends in an up-down direction, the adjusting block 52 is sleeved on an outer periphery of the screw 51 and is fixedly connected with the connecting plate 32, and the adjusting block 52 is in threaded connection with the screw 51 so as to be movable in the up-down direction relative to the mounting frame 31 when the screw 51 rotates, so as to drive the connecting plate 32 to move; in this way, the screw 51 may be rotated to drive the adjusting block 52 to move up and down, so as to drive the connecting plate 32 to move, so as to adjust the position of the connecting plate 32, and further adjust the lowest position of the pressing plate 2, so as to be suitable for film pressing of the pigment bottles 200 with different sizes.

More specifically, the connection plate 32 is fixedly connected to the adjustment block 52 by a screw.

Further, referring to fig. 1, the mounting rack 31 includes a mounting seat 311 and a connecting rod 312, the mounting seat 311 is fixedly mounted on the conveying table 1, and the connecting rod 312 is mounted on the mounting seat 311 and extends in the up-down direction; the connecting plate 32 is sleeved on the periphery of the connecting rod 312; the screw 51 is mounted on the mounting seat 311 and is spaced apart from the connecting rod 312. In this way, the installation of the pressure plate 2, the driving mechanism 4 and the adjusting mechanism 5 is achieved.

More specifically, the mounting seat 311 is fixedly connected to the conveying table 1 by a screw.

Further, referring to fig. 1, the adjusting mechanism 5 further includes a turntable 53, and the turntable 53 is fixedly mounted on the upper end of the screw 51. Thus, the operator can rotate the screw rod 51 by operating the turntable 53, and the operation is labor-saving and convenient.

Specifically, referring to fig. 1, the adjusting block 52 is sleeved on the outer periphery of the connecting rod 312; in this way, since the link 312 is provided to extend in the up-down direction, the link 312 can serve as a guide to define the moving direction of the adjustment block 52, thereby defining the moving direction of the driving mechanism 4.

Further, referring to fig. 1, two links 312 are provided, and the two links 312 are provided on both sides of the screw 51 in the first direction; the adjusting blocks 52 are sleeved on the peripheries of the two connecting rods 312, so that the connection strength of the connecting frame and the adjusting blocks 52 is improved, the adjusting blocks 52 are balanced in stress, and the moving direction of the adjusting blocks 52 is further limited.

Specifically, the pressing plate 2 is disposed to extend in the first direction; thus, the pressing plate 2 can press the packaging films 300 of the plurality of pigment bottles 200 each time under the action of the driving mechanism 4, thereby improving the production efficiency.

Further, referring to fig. 1, two guide rods 43 are provided, and the two guide rods 43 are distributed at intervals along the first direction and are separately disposed on two sides of the through hole 321, so that the stress of the pressing plate 2 is balanced, the stability of the movement of the pressing plate 2 in the up-down direction is improved, and the film pressing effect of the plurality of pigment bottles 200 is consistent.

Specifically, the conveying table 1 comprises a bearing frame, a servo motor, at least two driving pulleys and a driving belt, the bearing frame extends along the first direction, the two driving pulleys are distributed at intervals along the first direction, the driving belt is sleeved on the periphery of the two driving pulleys, the two driving pulleys are connected through a belt, the servo motor is in driving connection with one of the two driving pulleys so as to drive the driving pulleys to rotate, the driving belt and the other driving pulleys to rotate, and the pigment bottle 200 is placed on the driving belt and is used for being conveyed by the driving belt along the first direction.

It should be noted that the film laminating apparatus 100 described above is adopted in the film laminating apparatus described above, that is, the film laminating apparatus has all the technical features of all the embodiments of the film laminating apparatus 100 described above, that is, all the technical effects brought by all the technical features described above are not described herein again.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A film pressing device, characterized in that the film pressing device comprises:

The conveying table is arranged in an extending manner along a first direction and is used for conveying a plurality of pigment bottles sleeved with packaging films, and the pigment bottles are sequentially distributed along the first direction;

The pressing plate is movably arranged above the conveying table;

the mounting mechanism is fixedly mounted on the conveying table;

The driving mechanism comprises a driving motor, a crank and at least one guide rod, wherein the driving motor is fixedly arranged on the mounting mechanism, the crank is arranged in an extending mode along the up-down direction, the upper end of the crank is connected with a motor shaft of the driving motor, the lower end of the crank is connected with the pressing plate, the guide rod is arranged in an extending mode along the up-down direction and is fixedly connected with the mounting mechanism and the pressing plate, and the driving motor is in driving connection with the crank so as to drive the crank to rotate around the motor shaft, and the pressing plate can reciprocate along the up-down direction relative to the conveying table under the combined action of the crank and the guide rod; and

The adjusting mechanism is arranged on the mounting mechanism and is connected with the crank so as to adjust the position of the crank in the up-down direction, so that the lowest position of the pressing plate in the up-down direction is adjustable;

wherein the first direction and the up-down direction are perpendicular in the plane.

2. The film laminating apparatus as set forth in claim 1, wherein said mounting mechanism includes:

the mounting frame extends along the up-down direction and is fixedly arranged on one side of the conveying table; and

The connecting plate is arranged on the mounting frame and above the pressing plate and connected with the guide rod, the driving motor is arranged on the connecting plate, a through hole is formed in the connecting plate, and the lower end of the crank penetrates through the through hole and is connected with the pressing plate;

the adjusting mechanism is connected with the connecting plate and used for adjusting the position of the connecting plate in the up-down direction.

3. The film pressing apparatus of claim 2, wherein the adjusting mechanism comprises:

The screw rod is rotatably connected with the mounting frame and extends in the up-down direction; and

The adjusting block is sleeved on the periphery of the screw and fixedly connected with the connecting plate, and is in threaded connection with the screw so as to move up and down relative to the mounting frame when the screw rotates, so that the connecting plate is driven to move.

4. A film pressing apparatus according to claim 3, wherein the mounting frame includes a mounting seat fixedly mounted to the conveying table and a link rod mounted to the mounting seat and extending in an up-down direction;

The connecting plate is sleeved on the periphery of the connecting rod;

the screw rod is installed in the installation seat and is distributed with the connecting rod at intervals.

5. The film laminating apparatus of claim 4, wherein said adjustment mechanism further comprises a turntable fixedly mounted to an upper end of said screw.

6. The film pressing device of claim 4, wherein the adjusting block is sleeved on the periphery of the connecting rod.

7. The film pressing apparatus according to claim 6, wherein two of the links are provided, and the two links are provided on both sides of the screw in the first direction.

8. The film laminating apparatus as set forth in claim 2, wherein said pressing plate is disposed to extend in said first direction.

9. The film pressing device as claimed in claim 8, wherein two guide rods are provided, and the two guide rods are spaced apart along the first direction and are respectively disposed at two sides of the through hole.

10. A film wrapping apparatus for wrapping a packaging film on a color bottle, comprising:

The feeding device is used for sleeving the packaging film outside the pigment bottle;

a film laminating apparatus according to any one of claims 1 to 9, for pressing down a packaging film outside the pigment bottle; and

And the contraction device is used for tightening and attaching the packaging film to the outer surface of the pigment bottle.