Film cutting and sealing machine

Abstract

The invention discloses a film cutting and sealing machine which comprises a sealing mechanism, a container conveying mechanism and a film conveying mechanism. The container conveying mechanism conveys an unsealed container into the sealing mechanism and receives and sends out the sealed container; the sealing mechanism comprises a plurality of sealing assemblies moving in the circumferential direction, the containers entering the sealing mechanism and the corresponding sealing assemblies move synchronously, and the sealing assemblies are provided with sealing areas on the movement tracks of the sealing assemblies. A film conveyed by the film conveying mechanism and the sealing assembly synchronously move to pass through a sealing area; the sealing assembly firstly compresses the film through the sealing area, then seals the container and finally loosens the film. According to the film cutting and sealing machine, the container, the film and the sealing assembly synchronously move in the sealing area, it is guaranteed that the film and the container are accurately aligned, the structure is simplified, and the sealing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, in particular to a container packaging equipment, and in particular to a film cutting and sealing machine. Background Art

[0002] Many products are packaged in containers such as cups and bottles, such as coffee, beverages, food, and medicines. When packaging, they need to be sealed with film to achieve a sealing effect.

[0003] The existing film cutting and sealing machine includes a film cutting and placing device and a bottle conveying mechanism. The film cutting and placing device is arranged at the upper film working position of the bottle conveying mechanism. The film cutting and placing device generally includes a dislocation film cutting mechanism and a film suction and transport mechanism. The film suction and transport mechanism transports the film cut by the dislocation film cutting mechanism to the bottle working on the upper film. This film cutting and sealing machine has high requirements on the installation accuracy of the relative position of the dislocation film cutting mechanism and the film suction and transport mechanism. In addition, the film placing station and the sealing station of the film cutting and sealing machine are arranged at the same place. It is necessary to wait for the parts at the film placing station to be moved away before sealing. The working efficiency is low. When the film is transferred from the film placing station to the sealing station, the film is easy to fall off or shift. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problems of low sealing efficiency and complex structure in the prior art, the present invention provides a film cutting and sealing machine, which enables the container, film and sealing assembly to move synchronously in the sealing area, ensures precise alignment of the film and the container, simplifies the structure and improves the sealing efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a film cutting and sealing machine, comprising: a sealing mechanism, a container conveying mechanism and a film conveying mechanism;

[0006] The container conveying mechanism conveys unsealed containers to the sealing mechanism, and receives and delivers sealed containers;

[0007] The sealing mechanism comprises a plurality of sealing components moving in a circumferential direction, the container entering the sealing mechanism moves synchronously with the corresponding sealing components, and the sealing components have a sealing area on their movement trajectory;

[0008] The film conveyed by the film conveying mechanism moves synchronously with the sealing assembly through the sealing area;

[0009] The plurality of sealing components pass through the sealing area in sequence and continuously, and seal the container in the sealing area.

[0010] In the film cutting and sealing machine of the present invention, the film and the container move synchronously in the sealing area, and the sealing components complete the actions of pressing the film, sealing and loosening the film, so that the film and the container can be accurately positioned, the sealing efficiency is high, and the structure is simplified.

[0011] Further, in order to accurately align the film and the container, the sealing area includes a pressing area, a sealing area, and a separating area, and the pressing area, the sealing area, and the separating area are all arranged along the moving direction of the film.

[0012] Further, after passing through the pressing area, the sealing assembly presses the film tightly. When the sealing assembly passes through the sealing area, it seals the container, and when the sealing assembly passes through the separating area, it releases the film. Thus, the sealing assembly heat-seals the film and the container.

[0013] Further, in order to enable the sealing assembly to automatically complete the actions of pressing the film tightly, sealing, and releasing the film, the sealing assembly includes a pressing unit and a bearing plate. The pressing unit and the bearing plate rotate synchronously in the circumferential direction. The pressing unit can move relative to the bearing plate in the vertical direction. The pressing unit moves downward through the pressing area, moves horizontally through the sealing area, and moves upward through the separating area.

[0014] Further, the pressing unit moves on the track of the sealing mechanism. The track at least includes a descending section corresponding to the pressing area, a horizontal section corresponding to the sealing area, and an ascending section corresponding to the separating area. The pressing unit moves downward along the descending section, moves horizontally along the horizontal section, and moves upward along the ascending section. Thus, by coordinating with the shape of the track to control the movement track of the pressing unit within the sealing area, automatic sealing can be achieved.

[0015] Further, in order to ensure that the pressing unit presses the film tightly on the bearing plate and aligns it with the container, the upper surface of the bearing plate fits with the film, and the opening of the container is approximately flush with the lower surface of the bearing plate.

[0016] Further, in order to carry the container and make the container move synchronously with the sealing assembly, the sealing mechanism further includes a bearing seat for carrying the container, and the bearing seat is correspondingly arranged below the sealing assembly.

[0017] Further, in order to enable the container to enter or leave the sealing mechanism, the sealing mechanism further includes a container inlet position and a container outlet position, and the container inlet position and the container outlet position are located on the left and right sides of the sealing area.

[0018] Further, for the transportation of the container, the container transportation mechanism is arranged in parallel with the film transportation mechanism and is located on one side of the film transportation mechanism. The unsealed containers on the container transportation mechanism are sent into the container inlet position and receive the sealed containers sent out from the container outlet position.

[0019] Further, in order to accurately unwind and wind the film, the film transportation mechanism is arranged horizontally and drives the film to move horizontally and pass through the sealing area.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. For the film cutting and sealing machine of the present invention, the container is conveyed below the film through the sealing mechanism and the container conveying mechanism, so that the container, the film and the sealing component move synchronously along the sealing area, ensuring the accurate alignment of the film and the container, improving the sealing efficiency and accuracy. At the same time, the sealing component moves continuously along the track, enabling continuous sealing of the container and increasing the sealing speed of the container.

[0022] 2. For the film cutting and sealing machine of the present invention, the movement track of the pressing unit within the sealing area is controlled by the track, thereby adjusting the relative distance between the pressing unit and the bearing plate to meet the action requirements of the pressing unit within the sealing area, simplifying the structure and reducing costs.

[0023] 3. For the film cutting and sealing machine of the present invention, the film adheres to the bearing plate and moves synchronously with the bearing plate, which can prevent the position change of the film caused by the pressing unit during the process of pressing the film, ensuring the stable operation of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 is a schematic three-dimensional structure diagram of the film cutting and sealing machine of the present invention;

[0026] Figure 2 is Figure 1 the front view of

[0027] Figure 3 is Figure 2 the partial structure diagram in

[0028] Figure 4 is Figure 1 the top view of

[0029] Figure 5 is a schematic diagram of the sealing state;.

[0030] In the figure:.

[0031] 1. Sealing mechanism, 11. Container inlet position, 12. Container outlet position, 13. Sealing component, 131. Pressing unit, 132. Bearing plate, 133. Bearing seat, 14. Track, 141. Descending section, 142. Horizontal section, 143. Ascending section;

[0032] 2. Container conveying mechanism, 21. Container;

[0033] 3. Film conveying mechanism, 31. Film. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figure 1 As shown, a film cutting and sealing machine comprises: a sealing mechanism 1, a container conveying mechanism 2 and a film conveying mechanism 3. The container conveying mechanism 2 is arranged in parallel with the film conveying mechanism 3 and is located on one side of the film conveying mechanism 3. The container conveying mechanism 2 is a conventional conveyor belt and feeding tray mechanism, and the film conveying mechanism 3 is also composed of an existing unwinding mechanism and a winding mechanism to realize the unwinding and winding of the film 31. The above are all existing technologies and will not be repeated here.

[0038] Specifically, the film conveying mechanism 3 is arranged in the transverse direction, and drives the film 31 to move in the transverse direction and pass through the sealing area.

[0039] Specifically, the container conveying mechanism 2 conveys the unsealed container 21 to the sealing mechanism 1, and receives and delivers the sealed container 21. Figure 3 As shown, the container conveying mechanism 2 delivers the unsealed container 21 into the sealing mechanism 1 from the left end, and the container 21 moves synchronously with the sealing mechanism 1 to complete the sealing and is then delivered from the right side. The movement process of the container 21 following the sealing mechanism 1 will be described in detail below.

[0040] Specifically, the sealing mechanism 1 further includes a container inlet position 11 and a container outlet position 12, which are located on the left and right sides of the sealing area respectively. The unsealed container 21 on the container conveying mechanism 2 is sent into the container inlet position 11 and receives the sealed container 21 sent out from the container outlet position 12. In this embodiment, the container inlet position 11 and the container outlet position 12 are located at the leftmost and rightmost ends of the sealing mechanism 1 respectively.

[0041] Preferably, the sealing mechanism 1 includes a plurality of sealing components 13 that move circumferentially. The container 21 entering the sealing mechanism 1 moves synchronously with the corresponding sealing component 13, and the sealing component 13 has a sealing area on its movement trajectory. The film 31 conveyed by the film conveying mechanism 3 moves synchronously with the sealing component 13 through the sealing area. The sealing area is consistent with the movement direction of the film 31. By actively adjusting the movement direction of the container 21 through the movement trajectory of the sealing mechanism 1, the container 21 is moved below the film 31 to ensure that the container 21 and the film 31 move synchronously, so that the container 21 and the film 31 are always aligned during the sealing process. The transmission components of the sealing mechanism 1 are of conventional structure and will not be elaborated here.

[0042] Before the container 21 enters the sealing mechanism 1, the positions of the container 21 and the film 31 are different. Therefore, after the container 21 enters the sealing mechanism 1, the sealing mechanism 1 needs to move the container 21 directly below the film 31 to complete the subsequent sealing action. Therefore, before the container 21 enters the sealing mechanism 1, it first moves forward along an arc following the sealing mechanism 1 until the container 21 and the sealing component 13 move to the sealing area. At this time, the container 21, the sealing component 13, and the film 31 are on the same plane and all move forward horizontally. During the subsequent sealing process, the positions of the container 21, the sealing component 13, and the film 31 in the vertical direction are always the same.

[0043] Specifically, the sealing area includes a pressing area, a sealing area, and a separation area ( Figure 3 the three dashed boxes in represent the pressing area, the sealing area, and the separation area in sequence), and the pressing area, the sealing area, and the separation area are all arranged along the movement direction of the film 31. After passing through the pressing area, the sealing component 13 presses the film 31. After passing through the sealing area, the sealing component 13 seals the container 21. After passing through the separation area, the sealing component 13 releases the film 31. Through the above process, the sealing of the container 21 is completed within the sealing area. The sealed container 21 moves into the container conveying mechanism 2 again along the arc-shaped movement trajectory, while the waste film is directly wound up along the movement direction. Particularly, the sealing component 13 has a heat-sealing component, which is composed of conventional heat-sealing cutting knives and other components. The heat-sealing cutting knife can cut the film 31 downward to complete heat-sealing, which will not be elaborated here.

[0044] Preferably, the sealing assembly 13 reciprocates along the annular track 14, thereby synchronously adjusting the movement direction of the container 21, and conveying the container 21 that originally moves parallel to the film 31 to the bottom of the film 31, thereby completing the sealing.

[0045] Embodiment 2, on the basis of embodiment 1, the sealing assembly 13 includes a pressing unit 131 and a pressure plate 132, the pressing unit 131 and the pressure plate 132 rotate synchronously in the circumferential direction, the pressing unit 131 can move in the vertical direction relative to the pressure plate 132, the pressing unit 131 descends through the pressing area, the pressing unit 131 translates through the sealing area, and the pressing unit 131 ascends through the separation area.

[0046] Before entering the sealing area, the laminating unit 131 and the pressure plate 132 are separated in the vertical direction. After the laminating unit 131 and the pressure plate 132 enter the laminating area, the laminating unit 131 moves downward and gradually approaches the pressure plate 132 until the laminating unit 131 and the pressure plate 132 are pressed together, at which time the film 31 is firmly pressed between the mold base and the pressure plate 132. Then, the laminating unit 131 and the pressure plate 132 enter the sealing area, and the laminating unit 131 and the pressure plate 132 move horizontally along the sealing area, completing the sealing of the container 21 during the movement. Then the laminating unit 131 and the pressure plate 132 immediately enter the separation area, the laminating unit 131 moves upward, the laminating unit 131 and the pressure plate 132 separate, the laminating unit 131 separates from the film 31, and the subsequent film 31 is rolled up, the container 21 is sent out, and the sealing of the container 21 is completed.

[0047] Preferably, the pressing area, the sealing area and the separation area all have a certain length in the lateral direction, so that in the entire sealing area, the multiple sealing components 13 are in continuous motion, which can achieve continuous sealing with high sealing efficiency.

[0048] Specifically, Figure 5 As shown, the upper surface of the pressure plate 132 is fitted with the film 31, and the lower surface of the pressure plate 132 is nearly flush with the opening of the container 21. The pressure plate 132 is provided with a through hole, and the heat sealing assembly moves downward to heat-seal the cut film 31 with the container 21. The film 31 is fitted with the surface of the pressure plate 132 and the pressure plate 132 and the film 31 move synchronously to ensure that the relative position of the film 31 and the pressure plate 132 will not change. More importantly, if the film 31 is suspended between the pressing unit 131 and the pressure plate 132, the pressing unit 131 will generate downward pressure on the film 31 during the pressing process, affecting the tension of the film 31, and even causing problems such as deformation of the film 31, which will affect the sealing effect. Therefore, the film 31 is fitted with the pressure plate 132, and the pressing unit 131 is directly fitted with the pressure plate 132, which will not cause adverse effects on the film 31.

[0049] Preferably, the sealing mechanism 1 further includes a carrier seat 133 for carrying the container 21, and the carrier seat 133 is correspondingly arranged below the sealing assembly 13. After the container 21 enters the carrier seat 133, positioning is achieved. At this time, the pressing plate 132 is located above the carrier seat 133, and the opening of the container 21 is just located below the through hole, ensuring that the through hole of the container 21 and the pressing plate 132 are accurately aligned during the sealing process.

[0050] Embodiment 3, on the basis of Embodiment 2, as Figure 3 and 4 shown, the pressing unit 131 moves on the track 14 of the sealing mechanism 1. The track 14 at least includes a descending section 141 corresponding to the pressing area, a horizontal section 142 corresponding to the sealing area, and an ascending section 143 corresponding to the separation area. The pressing unit 131 moves downward along the descending section 141, the pressing unit 131 translates along the horizontal section, and the pressing unit 131 moves upward along the ascending section 143. The descending section 141, the horizontal section 142, and the ascending section 143 together form the running track of the pressing unit 131 within the sealing area. In the descending section 141 and the ascending section 143, there is a spacing between the pressing unit 131 and the pressing plate 132. After the carrier seat 133 receives the container 21, the sealing assembly 13 and the carrier seat 133 rotate synchronously until the pressing unit 131 of the sealing assembly 13 enters the descending section 141. Since the descending section 141 is inclined downward, the pressing unit 131 will gradually descend when passing through the descending section 141 until the pressing unit 131 enters the horizontal section 142. When the pressing unit 131 descends to the lowest point, the pressing unit 131 and the pressing plate 132 are in contact, and at this time, the film 31 is pressed tightly between the pressing unit and the pressing plate 132, ensuring that the film 31 corresponds to the opening of the container 21 during the subsequent sealing process. After the pressing unit enters the horizontal section 142, the pressing unit and the pressing plate 132 always press the film 31 tightly, and the sealing of the container 21 is completed in the horizontal section 142. Finally, the pressing unit enters the ascending section 143, and after the pressing unit is lifted, it will separate from the film 31. At this time, the waste film is wound up by the film conveying mechanism 3, and the container 21 that has been sealed continues to move and then enters the container conveying mechanism 2. Since the multiple sealing assemblies 13 move continuously, any sealing assembly 13 will automatically complete the above actions when passing through the sealing area, realizing the sealing of the container 21, enabling the film cutting and sealing machine of the present application to work continuously and improving the sealing efficiency of the container 21.

[0051] Figure 4 In the figure, arrow a is the movement track of the container 21, and arrow b is the movement track of the film 31.

[0052] Specifically, the pressing unit 131 includes a lower pressing plate and a connecting seat. The upper end of the connecting seat is movably arranged in the track 14 through a pulley, and the connecting seat and the lower pressing plate are connected by a guide post and a spring. In the horizontal section 142, since the distance between the lower pressing plate and the connecting seat becomes smaller, the spring is compressed, and the spring force acts on the lower pressing plate in the reverse direction, pressing the lower pressing plate tightly against the bearing plate 132 to ensure that the film 31 can be fixed between the lower pressing plate and the bearing plate 132.

[0053] In summary, for the film cutting and sealing machine of the present invention, the container, the film and the sealing component move synchronously in the sealing area, ensuring the precise alignment of the film and the container, simplifying the structure and improving the sealing efficiency.

[0054] The above is based on the ideal embodiments of the present invention as an inspiration. Through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A film cutting and sealing machine, characterized in that, Including: A sealing mechanism (1), a container conveying mechanism (2), and a film conveying mechanism (3); The container conveying mechanism (2) conveys the unsealed container (21) into the sealing mechanism (1) and receives and sends out the sealed container (21); The sealing mechanism (1) includes a plurality of sealing components (13) that move circumferentially. The container (21) entering the sealing mechanism (1) moves synchronously with the corresponding sealing component (13). The sealing component (13) has a sealing area on its movement track; The film (31) conveyed by the film conveying mechanism (3) moves synchronously with the sealing component (13) through the sealing area; The plurality of sealing components (13) sequentially and continuously pass through the sealing area and seal the container (21) within the sealing area.

2. The film cutting and sealing machine according to claim 1, wherein The sealing area includes a pressing area, a sealing area, and a separation area. The pressing area, the sealing area, and the separation area are all arranged along the movement direction of the film (31).

3. The film cutting and sealing machine according to claim 2, characterized in that, After passing through the pressing area, the sealing component (13) presses the film (31). The sealing component (13) passes through the sealing area and seals the container (21). After passing through the separation area, the sealing component (13) releases the film (31).

4. The film cutting and sealing machine according to claim 3, characterized in that, The sealing component (13) includes a pressing unit (131) and a bearing plate (132). The pressing unit (131) and the bearing plate (132) rotate synchronously in the circumferential direction. The pressing unit (131) can move relative to the bearing plate (132) in the vertical direction. The pressing unit (131) moves downward through the pressing area, and the pressing unit (131) moves horizontally through the sealing area. The pressing unit (131) moves upward through the separation area.

5. The film cutting and sealing machine according to claim 4, characterized in that, The pressing unit (131) moves on the track (14) of the sealing mechanism (1). The track (14) at least includes a descending section (141) corresponding to the pressing area, a horizontal section (142) corresponding to the sealing area, and an ascending section (143) corresponding to the separation area. The pressing unit (131) moves downward along the descending section (141), the pressing unit (131) moves horizontally along the horizontal section (142), and the pressing unit (131) moves upward along the ascending section (143).

6. The film cutting and sealing machine according to claim 5, wherein, The upper surface of the bearing plate (132) is in contact with the film (31), and the opening of the container (21) is approximately flush with the lower surface of the bearing plate (132).

7. The film cutting and sealing machine according to claim 6, wherein, The sealing mechanism (1) further includes a bearing seat (133) for carrying the container (21). The bearing seat (133) is correspondingly arranged below the sealing component (13).

8. The film cutting and sealing machine according to any one of claims 1-7, characterized in that, The sealing mechanism (1) further includes a container inlet position (11) and a container outlet position (12). The container inlet position (11) and the container outlet position (12) are located on the left and right sides of the sealing area.

9. The film cutting and sealing machine according to claim 8, characterized in that, The container conveying mechanism (2) is arranged in parallel with the film conveying mechanism (3) and is located on one side of the film conveying mechanism (3). The unsealed container (21) on the container conveying mechanism (2) is fed into the container inlet position (11) and receives and sends out the sealed container (21) from the container outlet position (12).

10. The film cutting and sealing machine according to claim 9, characterized in that, The film conveying mechanism (3) is arranged horizontally and drives the film (31) to move horizontally and pass through the sealing area.

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