INTEGRATED BLOW-POUR-SEALING MACHINE

Abstract

The invention proposes an integrated blow-pouring-sealing machine, comprising a base frame (1), in which the base frame (1) is equipped with an extrusion screw (2) and an extrusion die head (3) connected to which is detachable from the extrusion screw (2), the extrusion die head (3) includes the first extrusion die head (31) and the second extrusion die head (32), both the first extrusion die head (31) and the second extrusion die head (32) have a translational structure to be connected respectively to the extrusion screw (2), and the base frame (1) is equipped with a guide structure to guide the translational extrusion die head (31) and the second extrusion die head (32).When producing with a series of bottles with the first center-distance, the first extrusion die (31) is connected to the extrusion screw (2); and when producing with a series of bottles with the second center-distance, the first extrusion die (31) is first detached from the extrusion screw (2), then the first extrusion die (31) is moved linearly to detach from the extrusion screw, and the second extrusion die is moved into position and connected to the extrusion screw. The guide structure helps guide the linear movement of the first extrusion die (31) and the second extrusion die (32), ensuring a stable and smooth movement process, preventing misalignment, thereby allowing for quick changes in center-distance and reducing the risk of affecting the sealing performance and sterility of the machine during disassembly and replacement.

Description

Blowing, filling and sealing machine CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is based on and claims priority to a Chinese patent application filed on September 25, 2023, with application number 202322610220.3 and invention name “A Blowing, Filling and Sealing Integrated Machine”. The full text of the Chinese patent application is incorporated herein by reference as a part of this application. Technical Field

[0002] The present invention relates to food and medicine packaging machinery and equipment, and in particular to a blow-fill-seal integrated machine. Background Art

[0003] Continuous blow-fill-seal (BFS) machines enable a closed, sterile, continuous production process that combines extrusion, molding, filling, sealing, and demolding in a single step. Currently, most machines on the market are rotary multi-mode continuous BFS machines, single-station single-mold machines, or dual-station dual-mold BFS machines. These machines each pair an extruder with a set of extrusion die heads and filling mechanisms. Consequently, they can only produce ampoules with one center-to-center distance specification, eliminating the need to produce ampoules with other center-to-center distance specifications. This requires manufacturers to prepare multiple machines, which are cumbersome to disassemble, assemble, or replace, and pose a risk of compromising the equipment's sealing and sterility. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a blow-fill-seal integrated machine which has a simple structure, is easy to use and is conducive to reducing equipment costs.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An embodiment of the present invention discloses a blow-fill-seal machine, comprising a frame, on which is provided an extrusion screw and an extrusion die head detachably connected to the extrusion screw, wherein the extrusion die head comprises a first extrusion die head and a second extrusion die head, wherein the first extrusion die head and the second extrusion die head are both translatable structures for docking with the extrusion screw respectively, and the frame is provided with a guide structure for providing guidance for the translation of the first extrusion die head and the second extrusion die head.

[0007] In some embodiments of the present invention, the extrusion screw is a structure capable of axial translation, and the translation directions of the first extrusion die head and the second extrusion die head are perpendicular to the axial direction of the extrusion screw.

[0008] In some embodiments of the present invention, the frame is provided with a first translation guide rail arranged along the axial direction of the extrusion screw, the first translation guide rail is provided with a first slide seat, and the extrusion screw is provided on the first slide seat.

[0009] In some embodiments of the present invention, a first translation drive mechanism is further provided on the frame.

[0010] In some embodiments of the present invention, the first translation drive mechanism includes a first drive rack arranged along the axial direction of the extrusion screw, and the first slide is provided with a first drive gear, which is engaged with the first drive rack.

[0011] In some embodiments of the present invention, a first filling mechanism is provided on the first extrusion die head, and a second filling mechanism is provided on the second extrusion die head.

[0012] In some embodiments of the present invention, the guide structure includes a second translation guide rail, which is perpendicular to the axial direction of the extrusion screw. A second slide is provided on the second translation guide rail, and the first extrusion die head and the second extrusion die head are provided on the second slide.

[0013] In some embodiments of the present invention, a second translation drive mechanism is further provided on the frame.

[0014] In some embodiments of the present invention, the second translation drive mechanism includes a second drive rack, which is perpendicular to the axial direction of the extrusion screw. The second slide is provided with a second drive gear, which is engaged with the second drive rack.

[0015] In some embodiments of the present invention, positioning components are provided at both ends of the second translation guide rail.

[0016] Compared with the prior art, the advantages of the present invention are: in the blow-fill-seal integrated machine disclosed in the present invention, when producing bottles with a first center distance specification, the first extrusion die head is docked with the extrusion screw; and when it is necessary to produce bottles with a second center distance specification, the first extrusion die head is first disconnected from the extrusion screw, and then the first extrusion die head is translated to separate from the extrusion screw, and the second extrusion die head is translated into position and docked with the extrusion screw. The guide structure can provide a guide for the translation of the first extrusion die head and the second extrusion die head, ensuring that the translation process is smooth and stable and preventing deviation, thereby realizing rapid specification change and reducing the risk of damage to the sealing and sterility of the equipment during disassembly and replacement. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic diagram of the three-dimensional structure of the blow-fill-seal machine of the present invention from a first viewing angle.

[0018] FIG2 is a schematic diagram of the three-dimensional structure of the blow-fill-seal machine of the present invention from a second viewing angle.

[0019] FIG3 is a side structural diagram of the blow-fill-seal machine of the present invention.

[0020] FIG4 is a schematic structural diagram of the first extrusion die head of the present invention when used to produce 15 bottles in a single row.

[0021] FIG5 is a schematic structural diagram of the second extrusion die head of the present invention when used to produce 20 bottles in a single row.

[0022] The numbers in the figure represent:

[0023] 1. Frame; 11. First translation guide rail; 12. First slide; 13. Second translation guide rail; 14. Second slide; 2. Extrusion screw; 3. Extrusion die; 31. First extrusion die; 32. Second extrusion die; 41. First drive rack; 42. First drive gear; 51. Second drive rack; 52. Second drive gear; 6. Positioning component; 71. First filling mechanism; 72. Second filling mechanism; 8. Molding mold; 100. Bottle body; 101. Bottle body sheet. DETAILED DESCRIPTION

[0024] In the description of this application, it should be understood that the terms "upper", "left", "right", "vertical", "inner", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on this application.

[0025] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0026] In this application, unless otherwise specified or limited, the term "connection" and other terms should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Figures 1 to 3 show an embodiment of the present invention. The blow-fill-seal machine of this embodiment includes a frame 1. The frame 1 is provided with an extrusion screw 2 and an extrusion die head 3 that is detachably connected to the extrusion screw 2 (for example, by fasteners, etc.). The extrusion die head 3 includes a first extrusion die head 31 and a second extrusion die head 32. The first extrusion die head 31 and the second extrusion die head 32 are both translatable structures to respectively dock with the extrusion screw 2. The frame 1 is provided with a guide structure that provides guidance for the translation of the first extrusion die head 31 and the second extrusion die head 32.

[0029] In the blowing, filling and sealing machine of this embodiment, when producing bottles 100 with a first center distance specification, the first extrusion die head 31 is docked with the extrusion screw 2, as shown in FIG4 , with a single row of 15 bottles 100 having a larger center distance; and when it is necessary to produce bottles 100 with a second center distance specification, the first extrusion die head 31 is first disconnected from the extrusion screw 2, and then the first extrusion die head 31 is translated to separate from the extrusion screw 2, and the second extrusion die head 32 is translated into place and docked with the extrusion screw 2, as shown in FIG5 , with a single row of 20 bottles 100 having a smaller center distance; the guide structure can provide a guide for the translation of the first extrusion die head 31 and the second extrusion die head 32, ensuring a smooth and steady translation process and preventing deviation, thereby realizing rapid specification change and reducing the risk of damage to the sealing and sterility of the equipment during disassembly and replacement. The structure is simple and easy to use. Of course, in other embodiments, the extrusion die 3 may also include a third extrusion die, a fourth extrusion die, etc., for producing bottles 100 with third and fourth center distance specifications, which will not be repeated here.

[0030] Furthermore, in this embodiment, the extrusion screw 2 is a structure that can be translated axially, and the translation direction of the first extrusion die head 31 and the second extrusion die head 32 is perpendicular to the axial direction of the extrusion screw 2. After the connection between the first extrusion die head 31 and the extrusion screw 2 is disconnected, the extrusion screw 2 moves axially away from the first extrusion die head 31, thereby disconnecting from the first extrusion die head 31; after the second extrusion die head 32 is translated into place, the extrusion screw 2 moves axially to reset, and then connects to the second extrusion die head 32, which helps prevent the first extrusion die head 31 and the second extrusion die head 32 from interfering with or colliding with the extrusion screw 2 during translation, further improving reliability. The translation direction of the first extrusion die head 31 and the second extrusion die head 32 is perpendicular to the axial direction of the extrusion screw 2, which helps to achieve accurate docking of the first extrusion die head 31 and the second extrusion die head 32 with the extrusion screw 2.

[0031] Furthermore, in this embodiment, the frame 1 is provided with a first translation guide rail 11 arranged along the axial direction of the extrusion screw 2. The first translation guide rail 11 is provided with a first slide 12, and the extrusion screw 2 is disposed on the first slide 12. The first translation guide rail 11 can provide a guide for the translation of the first slide 12, making the translation process of the first slide 12 smoother while preventing deviation. The extrusion screw 2 moves synchronously with the first slide 12, resulting in a simple and effective structure.

[0032] Furthermore, in this embodiment, the frame 1 is further provided with a first drive rack 41 arranged axially along the extrusion screw 2. The first slide 12 is provided with a first drive gear 42, which meshes with the first drive rack 41. When the extrusion screw 2 needs to translate axially, the first drive gear 42 rotates (e.g., driven by a motor, etc.), and through cooperation with the first drive rack 41, drives the first slide 12 to move along the first translation guide rail 11. The first translation drive mechanism utilizes a rack and pinion pair, which is a mature technology with high reliability. Of course, in other embodiments, the first translation drive mechanism may also utilize a cylinder, a screw-nut pair, etc., which will not be described in detail.

[0033] As a preferred embodiment, a first filling mechanism 71 is provided on the first extrusion die 31, and a second filling mechanism 72 is provided on the second extrusion die 32. The process of filling the ampoule with the liquid medicine through the filling needle needs to be carried out within the tubular rubber blank extruded by the extrusion die 3, thereby ensuring a closed and sterile environment. The first filling mechanism 71 is provided on the first extrusion die 31, and the second filling mechanism 72 is provided on the second extrusion die 32, so that the extrusion die 3 and the corresponding filling mechanism can be synchronously translated and replaced, further improving the convenience of use.

[0034] Furthermore, in this embodiment, the guide structure includes a second translation guide rail 13, which is perpendicular to the axial direction of the extrusion screw 2. A second slide 14 is provided on the second translation guide rail 13, and the first extrusion die head 31 and the second extrusion die head 32 are provided on the second slide 14. The second translation guide rail 13 can provide guidance for the translation of the second slide 14, making the translation process of the second slide 14 smoother while preventing deviation. The first extrusion die head 31 and the second extrusion die head 32 move synchronously with the second slide 14, and the movement direction is perpendicular to the axial direction of the extrusion screw 2, resulting in a simple and effective structure. Of course, in other embodiments, the first extrusion die head 31 and the second extrusion die head 32 can also move separately along the second translation guide rail 13.

[0035] Furthermore, in this embodiment, the frame 1 is further provided with a second drive rack 51, which is perpendicular to the axial direction of the extrusion screw 2. A second drive gear 52 is provided on the second slide 14, which meshes with the second drive rack 51. When the specification needs to be changed, the second drive gear 52 rotates (e.g., driven by a motor), and through cooperation with the second drive rack 51, drives the second slide 14 along the second translation guide rail 13. The second translation drive mechanism utilizes a rack and pinion pair, which is a mature technology with high reliability. Of course, in other embodiments, the second translation drive mechanism can also utilize a cylinder, a screw-nut pair, etc., which will not be further described.

[0036] As a preferred embodiment, positioning components 6 are provided at both ends of the second translation guide rail 13. Specifically, referring to FIG3 , when the second extrusion die head 32 contacts the positioning component 6 on the left side of the second translation guide rail 13, the first extrusion die head 31 is exactly in the docking position with the extrusion screw 2; and when the first extrusion die head 31 translates and contacts the positioning component 6 on the right side of the second translation guide rail 13, the second extrusion die head 32 is exactly in the docking position with the extrusion screw 2, which is conducive to improving the rapid and accurate docking of the extrusion die head 3 with the extrusion screw 2.

[0037] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A blow-fill-seal machine, comprising a frame (1), characterized in that: The frame (1) is provided with an extrusion screw (2) and an extrusion die head (3) detachably connected to the extrusion screw (2); the extrusion die head (3) comprises a first extrusion die head (31) and a second extrusion die head (32); the first extrusion die head (31) and the second extrusion die head (32) are both translatable structures for docking with the extrusion screw (2) respectively; the frame (1) is provided with a guide structure for providing guidance for the translation of the first extrusion die head (31) and the second extrusion die head (32).

2. The blow-fill-seal machine according to claim 1, characterized in that: The extrusion screw (2) is a structure capable of axial translation, and the translation directions of the first extrusion die head (31) and the second extrusion die head (32) are perpendicular to the axial direction of the extrusion screw (2).

3. The blow-fill-seal machine according to claim 2, characterized in that: The frame (1) is provided with a first translation guide rail (11) arranged along the axial direction of the extrusion screw (2), the first translation guide rail (11) is provided with a first slide seat (12), and the extrusion screw (2) is arranged on the first slide seat (12).

4. The blow-fill-seal machine according to claim 3, characterized in that: The frame (1) is also provided with a first translation driving mechanism.

5. The blow-fill-seal machine according to claim 4, characterized in that: The first translation drive mechanism comprises a first drive rack (41) arranged along the axial direction of the extrusion screw (2), and the first slide seat (12) is provided with a first drive gear (42), and the first drive gear (42) is meshed with the first drive rack (41).

6. The blow-fill-seal machine according to claim 1, characterized in that: The first extrusion die head (31) is provided with a first filling mechanism (71), and the second extrusion die head (32) is provided with a second filling mechanism (72).

7. The blow-fill-seal machine according to any one of claims 1 to 6, characterized in that: The guide structure comprises a second translation guide rail (13), the second translation guide rail (13) being perpendicular to the axial direction of the extrusion screw (2), a second slide seat (14) being arranged on the second translation guide rail (13), and the first extrusion die head (31) and the second extrusion die head (32) being arranged on the second slide seat (14).

8. The blow-fill-seal machine according to claim 7, characterized in that: The frame (1) is also provided with a second translation drive mechanism.

9. The blow-fill-seal machine according to claim 8, characterized in that: The second translation drive mechanism comprises a second drive rack (51), the second drive rack (51) being perpendicular to the axial direction of the extrusion screw (2), and the second slide seat (14) being provided with a second drive gear (52), the second drive gear (52) being meshed with the second drive rack (51).

10. The blow-fill-seal machine according to claim 7, characterized in that: Positioning components (6) are provided at both ends of the second translation guide rail (13).

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