Single-mode BFS device

Abstract

The utility model discloses a single-die BFS device which comprises a main die, a head die and vacuum channels facilitating vacuumizing treatment, a plurality of bottle body forming cavities used for forming bottle bodies are formed in the main die, and a plurality of head die forming cavities and at least two vacuum channels which are independently arranged are formed in the head die. A plurality of vacuumizing holes are formed in the bottle body forming cavity and / or the head mold forming cavity, each vacuumizing hole in the bottle body forming cavity is connected with one vacuum channel, and each vacuumizing hole in the head mold forming cavity is connected with the other vacuum channel. According to the single-mold BFS device disclosed by the utility model, at least more than two vacuum channels which are independent from each other are arranged, so that different areas in the mold can be vacuumized independently, the vacuum degrees required by different areas of an ampoule bottle can reach the standard, and the forming effect is good; the multiple vacuumizing holes are formed to be connected with the vacuum channel for vacuumizing, so that vacuumizing in the same area is more uniform, and the forming consistency is high.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging machinery and equipment technology, specifically to a single-mode BFS device. Background Technology

[0002] Blow-fill-seal (BFS) is an infusion production technology that completes blow molding, liquid filling, and sealing at the same station on the same equipment. This technology effectively prevents contamination through a closed blow-fill-seal system and airflow control system, and is now widely used in aseptic packaging in the pharmaceutical and food industries. Currently, the main blow-fill-seal equipment includes two main types: single-mold continuous / discontinuous and multi-mold continuous. The core difference between these types lies in the BFS mold. Multi-mold equipment has multiple sets of molds, which rotate during operation, while single-mold equipment only reciprocates horizontally. BFS molds are specifically designed for blow molding, filling, and sealing operations. A pair of molds typically has more than ten ampoule forming positions, and can reach dozens as needed. The resulting ampoules look like... Figure 1 As shown, it includes a bottle body 51 and a handle 52 and a labeling part 53 located on the upper and lower parts of the bottle body 51.

[0003] Because BFS molds need to form a large number of bottles at once, and each bottle has multiple parts that need to be formed, and need to achieve multiple functions such as blow-fill-seal, the BFS mold structure is complex and difficult to manufacture. For example, in CN220409591U, a single mold includes at least a mold frame, an upper mold, a lower mold, and an intermediate mold, and cooling channels and vacuum channels need to be set in each mold. In addition, the mold needs to move rapidly under the action of a drive device at a specific rhythm, and the ampoule forming mold needs to be changed according to the required bottle shape and capacity. In order to ensure the consistency of the forming state of each ampoule 5 when the BFS device blows the ampoule 5, the vacuum degree of the ampoule forming area inside the mold needs to maintain a high degree of consistency. Therefore, the existing molds connect the various areas inside the mold to the same vacuum source through a merged channel. However, the applicant found that during the bottle manufacturing process, especially for some irregularly shaped bottles, it is easy to find that while the vacuum degree required for manufacturing the main body of the ampoule 5 meets the standard, the vacuum degree of the edge area of ​​the ampoule 5 is insufficient. Utility Model Content

[0004] This invention addresses the problems existing in the use of the prior art by providing a single-mold BFS device with good molding effect and high molding consistency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A single-mold BFS device includes a main mold, a head mold, and vacuum channels for easy vacuuming. The main mold has multiple bottle forming cavities for forming bottles, and the head mold has multiple head mold forming cavities and at least two independently arranged vacuum channels. The bottle forming cavities and / or head mold forming cavities have multiple vacuum holes. Each vacuum hole on the bottle forming cavity is connected to a vacuum channel, and each vacuum hole on the head mold forming cavity is connected to another vacuum channel.

[0007] As a further improvement to the above technical solution:

[0008] It also includes a vacuuming device, which includes a first vacuuming device and a second vacuuming device. The first vacuuming device is connected to each vacuuming hole on a plurality of bottle forming cavities through a vacuum channel, and the second vacuuming device is connected to each vacuuming hole on a plurality of head mold forming cavities through another vacuum channel.

[0009] The vacuum channel includes a first vacuum channel, a second vacuum channel, and a third vacuum channel. The bottle forming cavity includes a bottle body forming cavity and a handle forming cavity. The first vacuum channel is connected to vacuum holes on multiple bottle body forming cavities. The second vacuum channel is connected to vacuum holes on multiple handle forming cavities. The third vacuum channel is connected to vacuum holes on multiple head mold forming cavities. The first and second vacuum channels are both connected to a first vacuum device. The third vacuum channel is connected to a second vacuum device.

[0010] The first vacuum channel includes a first main channel and multiple first sub-channels. One end of each first sub-channel is connected to the first main channel, and the other end of each first sub-channel is connected to a vacuum hole on the bottle forming cavity.

[0011] The second vacuum channel includes a second main channel and multiple second sub-channels. One end of each second sub-channel is connected to the second main channel, and the other end of each second sub-channel is connected to a vacuum hole on the handle forming cavity.

[0012] It also includes multiple valves, which are respectively installed on the first vacuum channel, the second vacuum channel and the third vacuum channel.

[0013] The head mold is located above the main mold, and the main mold and the head mold are detachably connected.

[0014] A wear-resistant plate is provided between the main mold and the head mold.

[0015] The main mold comprises two joined half-molds, with the bottle forming cavity located in the space between the two half-molds.

[0016] The half-mold is provided with positioning plates at both ends along its length, and the positioning plates of the half-mold are threadedly connected to the positioning plates of the other half-mold that are arranged opposite to it.

[0017] The head mold is threadedly connected to the positioning plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention's single-mold BFS device, by setting at least two independent vacuum channels, enables independent vacuuming of different areas within the mold. This ensures that the required vacuum level in different areas of the ampoule meets the standard, resulting in good instantaneous vacuum, full molding, and excellent molding effect. By setting multiple vacuum holes connected to the vacuum channels for vacuuming, the vacuuming within the same area becomes more uniform, preventing insufficient vacuum at the edges of the same area. This contributes to a more consistent vacuum level across different parts of the same area of ​​the ampoule, resulting in high molding consistency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the ampoule bottle of this utility model.

[0021] Figure 2 This is a front view of the single-mode BFS device of this utility model.

[0022] Figure 3 This is a side view of the single-mode BFS device of this utility model.

[0023] Figure 4 This is an isometric view of the single-mode BFS device of this utility model.

[0024] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0025] Legend: 1. Main mold; 11. Bottle body forming cavity; 111. Bottle body forming cavity; 112. Handle forming cavity; 13. First vacuum channel; 131. First main channel; 132. First sub-channel; 14. Second vacuum channel; 141. Second main channel; 142. Second sub-channel; 15. Half mold; 16. Third vacuum channel; 2. Head mold; 21. Head mold forming cavity; 3. Wear-resistant plate; 4. Positioning plate; 5. Ampoule; 51. Bottle body; 52. Handle; 53. Labeling part; 6. Vacuum hole; 9. Valve. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] like Figure 1 As shown, the ampoule 5 in this embodiment includes a bottle body and a labeling section 53. The bottle body includes a body portion 51 and a handle portion 52. The body portion and the labeling section 53 are respectively connected to different vacuum channels, and the two parts are not connected. The bottle body is used to hold materials. The labeling section 53 is used to affix labels.

[0031] like Figures 2 to 5 As shown, the single-mold BFS device of this embodiment includes a main mold 1, a head mold 2, and a vacuum channel for easy vacuuming. The main mold 1 is provided with a plurality of bottle forming cavities 11 for forming the bottle body, and the head mold 2 is provided with a plurality of head mold forming cavities 21 for forming the labeling part 53. At least two vacuum channels are independently arranged. The bottle forming cavity 11 and the head mold forming cavity 21 are provided with a plurality of vacuum holes 6. Each vacuum hole 6 on the bottle forming cavity 11 is connected to a vacuum channel, and each vacuum hole 6 on the head mold forming cavity 21 is connected to another vacuum channel.

[0032] In this embodiment, the single-mold BFS device, during the blowing of the ampoule 5, evacuates the bottle forming cavity 11 through one vacuum channel to form the bottle body (bottle body 51 and handle 52), and evacuates the head mold forming cavity 21 through another vacuum channel to form the labeling part 53, thus realizing the blowing of the ampoule 5. This single-mold BFS device, by setting at least two independent vacuum channels, allows for independent evacuation of different areas in the mold, ensuring that the required vacuum level in different areas of the ampoule 5 is met, resulting in good instantaneous vacuum, full forming, and good forming effect. By setting multiple vacuum holes 6 connected to the vacuum channels for evacuation, the evacuation within the same area is more uniform, preventing insufficient vacuum at the edges of the same area, and promoting more consistent vacuum levels in different parts of the same area of ​​the ampoule 5, resulting in high forming consistency.

[0033] In this embodiment, since the labeling part 53 is used for labeling without containing materials or medicine, the bottle forming cavity 11 and the head mold forming cavity 21 are not connected.

[0034] Furthermore, this embodiment also includes a vacuuming device (not shown in the figure). The vacuuming device includes a first vacuuming device and a second vacuuming device. The first vacuuming device is connected to each vacuuming hole 6 on the plurality of bottle forming cavities 11 through a vacuum channel, and the second vacuuming device is connected to each vacuuming hole 6 on the plurality of head mold forming cavities 21 through another vacuum channel. When blowing ampoules 5, the first vacuuming device and the second vacuuming device can simultaneously vacuum the bottle forming cavity 11 and the head mold forming cavity 21 respectively, resulting in high vacuuming efficiency and avoiding the technical problem of low vacuuming power caused by using only one vacuuming device. At the same time, the setting of different vacuuming devices can also adapt to the different vacuuming requirements of different areas.

[0035] Furthermore, in this embodiment, as Figure 3As shown, the vacuum channels include a first vacuum channel 13, a second vacuum channel 14, and a third vacuum channel 16. The bottle forming cavity 11 includes a bottle body forming cavity 111 and a handle forming cavity 112. The first vacuum channel 13 is connected to the vacuum holes 6 on the multiple bottle body forming cavities 111. The second vacuum channel 14 is connected to the vacuum holes 6 on the multiple handle forming cavities 112. The third vacuum channel 16 is connected to the vacuum holes 6 on the multiple head mold forming cavities 21. The first vacuum channel 13 and the second vacuum channel 14 are both connected to the first vacuum device, and the third vacuum channel 16 is connected to the second vacuum device. When blowing the ampoule 5, because the ampoule 5 is an irregularly shaped bottle with many corners in the body 51 and handle 52, if the body 51 and handle 52 are vacuumed together, the vacuum level at the edges may be insufficient. By connecting the first vacuum channel 13 to the body forming cavity 111 and the second vacuum channel 14 to the handle forming cavity 112, the body 51 and handle 52 can be blown independently, resulting in a better forming effect.

[0036] Furthermore, in this embodiment, as Figure 5 As shown, the first vacuum channel 13 includes a first main channel 131 and multiple first sub-channels 132. One end of each first sub-channel 132 is connected to the first main channel 131, and the other end of each first sub-channel 132 is connected to a vacuum hole 6 on the bottle forming cavity 111. The second vacuum channel 14 includes a second main channel 141 and multiple second sub-channels 142. One end of each second sub-channel 142 is connected to the second main channel 141, and the other end of each second sub-channel 142 is connected to a vacuum hole 6 on the handle forming cavity 112. By connecting the first main channel 131 and multiple first sub-channels 132, and the second main channel 141 and multiple second sub-channels 142, vacuuming can be performed simultaneously on multiple bottle forming cavities 111 and multiple handle forming cavities 112, resulting in high vacuuming efficiency.

[0037] Furthermore, in this embodiment, as Figure 4 As shown, it also includes multiple valves 9, which are respectively disposed on the first vacuum channel 13, the second vacuum channel 14, and the third vacuum channel 16. Valves 9 are respectively disposed on the first vacuum channel 13 and the second vacuum channel 14. By switching the valves 9 on and off, the connection and disconnection between the first vacuum device and the first vacuum channel 13 and the second vacuum channel 14 can be controlled. Independent vacuuming of the bottle body forming cavity 111 and the handle forming cavity 112 can be achieved using a single vacuum device, resulting in a simple and reliable structure. Preferably, the valves 9 are solenoid valves, allowing for remote control of their opening and closing, making operation convenient.

[0038] Furthermore, in this embodiment, the head mold 2 is located above the main mold 1, and the main mold 1 and the head mold 2 are detachably connected. After a batch of ampoules 5 is formed, the main mold 1 and the head mold 2 are disassembled and separated, the ampoules 5 are unloaded, and then the main mold 1 and the head mold 2 are reassembled and connected to allow for the forming of the next batch of ampoules 5. The structure is simple and reliable.

[0039] Furthermore, in this embodiment, a wear-resistant plate 3 is provided between the main mold 1 and the head mold 2. During the production process, the main mold 1 and the head mold 2 need to be frequently disassembled. The wear-resistant plate 3 can reduce the wear between the main mold 1 and the head mold 2 and improve the durability of the device.

[0040] Furthermore, in this embodiment, the main mold 1 includes two joined half-molds 15, and the bottle forming cavity 11 is located in the space between the two half-molds 15. The main mold 1 is formed by joining the two half-molds 15, which simplifies the manufacturing process.

[0041] Furthermore, in this embodiment, positioning plates 4 are respectively provided at both ends of the half mold 15 along its length, and the positioning plates 4 of the half mold 15 are threadedly connected to the positioning plates 4 of the other half mold 15. The two half molds 15 are positioned by the positioning plates 4 at the left and right ends before being assembled, making the assembly more precise.

[0042] Furthermore, in this embodiment, the head mold 2 is threadedly connected to the positioning plate 4, which facilitates disassembly and assembly, and has a simple and reliable structure.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A single mode BFS device, characterized by: The main mold (1), the head mold (2) and the vacuum channel for facilitating vacuumizing treatment, the main mold (1) is provided with a plurality of bottle body forming cavities (11) for forming bottle body, the head mold (2) is provided with a plurality of head mold forming cavities (21), at least two or more vacuum channels are independently arranged, the bottle body forming cavity (11) and / or the head mold forming cavity (21) are provided with a plurality of vacuum holes (6), each vacuum hole (6) on the bottle body forming cavity (11) is connected with a vacuum channel, each vacuum hole (6) on the head mold forming cavity (21) is connected with another vacuum channel; The vacuum channel includes a first vacuum channel (13), a second vacuum channel (14) and a third vacuum channel (16), the first vacuum channel (13) is connected with the vacuum holes (6) on the plurality of bottle body forming cavities (111), the second vacuum channel (14) is connected with the vacuum holes (6) on the plurality of handle forming cavities (112), and the third vacuum channel (16) is connected with the vacuum holes (6) on the plurality of forming cavities for forming the label part (53). The first vacuum channel (13) includes a first total channel (131) and a plurality of first branch channels (132), one end of each first branch channel (132) is connected with the first total channel (131), and the other end of each first branch channel (132) is connected with each vacuum hole (6) on the bottle body forming cavity (111). The second vacuum channel (14) includes a second total channel (141) and a plurality of second branch channels (142), one end of each second branch channel (142) is connected with the second total channel (141), and the other end of each second branch channel (142) is connected with each vacuum hole (6) on the handle forming cavity (112). A plurality of valves (9) are further included and arranged on the first vacuum channel (13), the second vacuum channel (14) and the third vacuum channel (16).

2. The single-mode BFS apparatus of claim 1, wherein: The vacuumizing device includes a first vacuumizing device and a second vacuumizing device, the first vacuumizing device is connected with each vacuum hole (6) on the plurality of bottle body forming cavities (11) through the vacuum channel, and the second vacuumizing device is connected with each vacuum hole (6) on the plurality of head mold forming cavities (21) through another vacuum channel.

3. The single-mode BFS apparatus of claim 2, wherein: The bottle body forming cavity (11) includes a bottle body forming cavity (111) and a handle forming cavity (112), the third vacuum channel (16) is connected with the vacuum holes (6) on the plurality of head mold forming cavities (21), the first vacuum channel (13) and the second vacuum channel (14) are connected with the first vacuumizing device, and the third vacuum channel (16) is connected with the second vacuumizing device.

4. The single-mode BFS apparatus of any one of claims 1 to 3, wherein: The head mold (2) is located above the main mold (1), and the main mold (1) and the head mold (2) are detachably connected.

5. The single-mode BFS apparatus of claim 4, wherein: A wear-resistant plate (3) is arranged between the main mold (1) and the head mold (2).

6. The single-mode BFS apparatus of claim 4, wherein: The main mold (1) includes two half molds (15) that are combined together, and the bottle body forming cavities (11) are located in the space between the two half molds (15).

7. The single-mode BFS apparatus of claim 6, wherein: The half mold (15) is provided with a positioning plate (4) at each lengthwise end, and the positioning plate (4) of the half mold (15) is threadedly connected with the positioning plate (4) of the oppositely arranged other half mold (15).

8. The single-mode BFS apparatus of claim 6, wherein: The head mold (2) is threadedly connected with the positioning plate (4).

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