Moving device for extrusion mechanism of blow-fill-seal integrated machine, and blow-fill-seal integrated machine

Abstract

A moving device for an extrusion mechanism of a blow-fill-seal integrated machine, and a blow-fill-seal integrated machine. The moving device for an extrusion mechanism of a blow-fill-seal integrated machine comprises a support (1); a lead screw (2), guide rails (3), and a driving component (4) for driving the lead screw (2) to rotate are provided on the support (1); a first moving seat (51) is provided at a feeding end of the extrusion mechanism (5), and a second moving seat (52) is provided at a discharging end of the extrusion mechanism (5); the first moving seat (51) and the second moving seat (52) are arranged on the guide rails (3); a lead screw nut (21) is provided on the lead screw (2); the lead screw nut (21) is connected to the first moving seat (51); and the driving component (4) is connected to the lead screw (2) by means of a transmission mechanism (6). The blow-fill-seal integrated machine comprises the moving device for an extrusion mechanism of a blow-fill-seal integrated machine.

Description

A moving device for the extrusion mechanism of a blow-fill-seal integrated machine and the blow-fill-seal integrated machine.

[0001] Cross-references to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202520147508.8, filed on January 21, 2025, entitled “Extrusion Mechanism Moving Device and Blow-Fill-Seal Integrated Machine”, the full text of which is incorporated herein by reference as a part of this application. Technical Field

[0003] This application relates to the field of food and pharmaceutical packaging machinery technology, and in particular to a moving device for the extrusion mechanism of a blow-fill-seal integrated machine and the blow-fill-seal integrated machine itself. Background Technology

[0004] The extrusion mechanism of the blow-fill-seal machine mainly includes an extrusion screw assembly and a preform extrusion assembly located at the discharge end of the extrusion screw assembly. Plastic particles fed into the extrusion screw assembly are molten and conveyed forward under high temperature and pressure in the gap between the extrusion screw and the outer sleeve. The molten plastic flows through a smooth channel within the preform extrusion assembly, forming a near-elliptical preform. After testing and production of the blow-fill-seal machine, the preform extrusion assembly requires cleaning, routine maintenance, and upkeep. Because the preform extrusion assembly is very close to the molding die assembly below during normal production, it is necessary to move the preform extrusion assembly away from the production position to allow sufficient space for these operations.

[0005] Most existing extrusion mechanism moving devices are installed at the discharge end of the extrusion screw assembly. However, the discharge end of the sleeve on the outer periphery of the extrusion screw requires a cooling water jacket and is connected to water-cooling pipes to reduce the temperature rise caused by molten plastic. This results in limited installation space and difficulty in installation. Furthermore, existing extrusion mechanism moving devices use a gear and rack mechanism to provide the required driving force. The gear and rack mechanism cannot achieve precise adjustment and is prone to jamming during daily use, thus requiring improvement. Summary of the Invention

[0006] The technical problem to be solved by this application is to overcome the shortcomings of the prior art and provide a moving device for the extrusion mechanism of a blow-fill-seal integrated machine that is easy to install, can achieve precise adjustment, and is labor-saving to operate.

[0007] This application further provides a blow-fill-seal integrated machine that includes an extrusion mechanism moving device for the above-described blow-fill-seal integrated machine.

[0008] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0009] A moving device for the extrusion mechanism of a blow-fill-seal integrated machine includes a support frame. The support frame is provided with a lead screw, a guide rail, and a driving component for rotating the lead screw. The feed end of the extrusion mechanism is provided with a first moving seat, and the discharge end is provided with a second moving seat. The first moving seat and the second moving seat are located on the guide rail. The lead screw is provided with a lead screw nut, which is connected to the first moving seat. The driving component is connected to the lead screw through a speed change mechanism.

[0010] In some embodiments of this application, the guide rails are disposed on both sides of the lead screw.

[0011] In some embodiments of this application: the driving component is a handwheel, the handwheel is located on the outside of one of the guide rails, the speed change mechanism is a right-angle reducer, and the handwheel is connected to the right-angle reducer through a transmission shaft.

[0012] In some embodiments of this application: the driving component is a motor, the motor is disposed between the two guide rails, and the speed change mechanism is a right-angle reducer.

[0013] In some embodiments of this application, the speed change mechanism is connected to the lead screw via a star coupling.

[0014] A blow-fill-seal integrated machine includes an extrusion mechanism, a filling mechanism disposed at the discharge end of the extrusion mechanism, and a forming mechanism disposed below the discharge end of the extrusion mechanism. The blow-fill-seal integrated machine also includes the aforementioned extrusion mechanism moving device.

[0015] In some embodiments of this application: the extrusion mechanism includes an extrusion screw assembly and a preform extrusion assembly, the first movable seat and the second movable seat are disposed at both ends of the extrusion screw assembly, the preform extrusion assembly is connected to the discharge end of the extrusion screw assembly, and the discharge end of the extrusion screw assembly is provided with a water-cooling jacket.

[0016] Compared with the prior art, the advantages of this application are:

[0017] The extrusion mechanism moving device of the blow-fill-seal integrated machine disclosed in this application, during operation, the drive component drives the lead screw to rotate through the speed change mechanism. When the lead screw rotates, it drives the lead screw nut to move along the lead screw. The lead screw nut drives the extrusion mechanism, the second moving seat, and other components to move as a whole through the first moving seat. The lead screw has reversibility and high stability. Combined with the speed change mechanism to change the speed of the drive component, precise adjustment can be achieved, making operation labor-saving. Furthermore, the lead screw nut is connected to the first moving seat at the feed end of the extrusion mechanism. Compared with the discharge end, the feed end of the extrusion mechanism has more installation space, making the moving device easier to install and more rationally laid out.

[0018] The blow-fill-seal integrated machine disclosed in this application includes the extrusion mechanism moving device of the aforementioned blow-fill-seal integrated machine, and therefore also has the aforementioned advantages.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] Figure 1 is a three-dimensional structural diagram of Embodiment 1 of this application.

[0021] Figure 2 is a partial enlarged view of Embodiment 1 of this application.

[0022] Figure 3 is a top view of Embodiment 1 of this application.

[0023] Figure 4 is a three-dimensional structural diagram of Embodiment 2 of this application.

[0024] Figure 5 is a partial enlarged view of Embodiment 2 of this application.

[0025] Figure 6 is a top view of Embodiment 2 of this application.

[0026] The labels in the diagram represent:

[0027] 1. Support; 2. Lead screw; 21. Lead screw nut; 3. Guide rail; 4. Drive component; 41. Transmission shaft; 5. Extrusion mechanism; 51. First moving seat; 52. Second moving seat; 53. Extrusion screw assembly; 54. Tube preform extrusion assembly; 6. Speed ​​change mechanism; 7. Star coupling; 8. Filling mechanism; 9. Molding mechanism. Detailed Implementation

[0028] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "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, and 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 orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] 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 application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," "joining," and "fixing," etc., 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 application according to the specific circumstances.

[0031] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0032] Figures 1 to 3 illustrate an embodiment of the extrusion mechanism moving device of the blow-fill-seal integrated machine of this application. The extrusion mechanism moving device of the blow-fill-seal integrated machine of this embodiment includes a support 1. The support 1 is provided with a lead screw 2, a guide rail 3, and a drive component 4 for driving the lead screw 2 to rotate. The feed end of the extrusion mechanism 5 is provided with a first moving seat 51 and the discharge end is provided with a second moving seat 52. The first moving seat 51 and the second moving seat 52 are provided on the guide rail 3. The lead screw 2 is provided with a lead screw nut 21, which is connected to the first moving seat 51. The drive component 4 is connected to the lead screw 2 through a speed change mechanism 6.

[0033] In this embodiment, the extrusion mechanism moving device of the blow-fill-seal integrated machine operates by driving component 4 driving screw 2 to rotate via speed change mechanism 6. When screw 2 rotates, screw nut 21 moves along screw 2. Screw nut 21, through first moving seat 51, drives the extrusion mechanism 5, second moving seat 52, and other components to move as a whole. Screw 2 has reversibility and high stability. Combined with speed change mechanism 6 to alter the rotational speed of driving component 4, precise adjustment can be achieved, reducing operational effort. Furthermore, screw nut 21 is connected to the first moving seat 51 at the feed end of extrusion mechanism 5. Compared to the discharge end, the feed end of extrusion mechanism 5 has more installation space, making installation of the moving device more convenient and the layout more reasonable.

[0034] In a preferred embodiment, the guide rail 3 is located on both sides of the lead screw 2, which has good symmetry and can provide good support and guidance for the first moving seat 51, the second moving seat 52, etc., so that the extrusion mechanism 5 moves more smoothly and has higher motion accuracy.

[0035] Furthermore, in this embodiment, the driving component 4 is a handwheel, meaning that manual operation is used to drive the extrusion mechanism 5 to reciprocate. The handwheel is located on the outside of one of the guide rails 3, and the speed-changing mechanism 6 is a right-angle reducer. The handwheel is connected to the right-angle reducer via a transmission shaft 41. Positioning the handwheel on the outside of one of the guide rails 3 allows the operator to operate the extrusion mechanism 5 from the side without obstruction. During operation, the handwheel rotates, driving the right-angle reducer via the transmission shaft 41. The right-angle reducer can reduce speed, increase torque, and change direction. The lead screw 2 rotates under the drive of the right-angle reducer. The structure is simple and the transmission is reliable.

[0036] In a preferred embodiment, the transmission mechanism 6 is connected to the lead screw 2 via a star coupling 7. The star coupling 7 has almost no backlash, resulting in higher precision and responsiveness in the transmission process. At the same time, it can absorb minor vibrations and shocks, protecting the lead screw 2 and other transmission components. Example 2

[0037] Figures 4 to 6 illustrate another embodiment of the extrusion mechanism moving device of the blow-fill-seal integrated machine of this application. The extrusion mechanism moving device of the blow-fill-seal integrated machine in this embodiment is basically the same as that in Embodiment 1, except that:

[0038] In this embodiment, the driving component 4 is a motor, which is located between the two guide rails 3, and the speed change mechanism 6 is a right-angle reducer. That is, this embodiment uses motor drive. During operation, the motor drives the right-angle reducer to run. The right-angle reducer can reduce speed, increase torque, and change direction. The lead screw 2 rotates under the drive of the right-angle reducer. The structure is simple and the transmission is reliable. Example 3

[0039] The blow-fill-seal integrated machine of this embodiment includes an extrusion mechanism 5, a filling mechanism 8 passing through the discharge end of the extrusion mechanism 5, and a forming mechanism 9 located below the discharge end of the extrusion mechanism 5. The blow-fill-seal integrated machine also includes the extrusion mechanism moving device of the blow-fill-seal integrated machine described in Embodiment 1 or Embodiment 2 above.

[0040] The blow-fill-seal integrated machine of this embodiment includes the extrusion mechanism moving device of the blow-fill-seal integrated machine described above, and therefore also has the above-mentioned advantages.

[0041] Furthermore, in this embodiment, the extrusion mechanism 5 includes an extrusion screw assembly 53 and a preform extrusion assembly 54. A first movable seat 51 and a second movable seat 52 are disposed at both ends of the extrusion screw assembly 53. The preform extrusion assembly 54 is connected to the discharge end of the extrusion screw assembly 53. The discharge end of the extrusion screw assembly 53 is provided with a water-cooling jacket 55.

[0042] Plastic particles fed into the extrusion screw assembly 53 are molten and conveyed forward under high temperature and pressure in the gap between the extrusion screw and the outer sleeve. The molten plastic flows through a smooth channel in the preform extrusion assembly 54 to form a near-elliptical preform. The water-cooling jacket 55 cools the discharge end of the extrusion screw assembly 53, preventing the temperature of the extrusion screw assembly 53 from becoming too high due to the molten plastic. Furthermore, the water-cooling jacket 55 is located at the discharge end of the base screw 53, so it does not hinder the installation of the moving device, resulting in a reasonable layout.

[0043] While this application has disclosed preferred embodiments above, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application, or modify them into equivalent embodiments, without departing from the scope of the technical solutions of this application. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solutions of this application, should fall within the protection scope of the technical solutions of this application.

Claims

1. A moving device for the extrusion mechanism of a blow-fill-seal integrated machine, characterized in that: The device includes a support (1), on which a lead screw (2), a guide rail (3), and a drive component (4) for rotating the lead screw (2) are provided. The extrusion mechanism (5) has a first moving seat (51) at the feed end and a second moving seat (52) at the discharge end. The first moving seat (51) and the second moving seat (52) are located on the guide rail (3). The lead screw (2) is provided with a lead screw nut (21), which is connected to the first moving seat (51). The drive component (4) is connected to the lead screw (2) through a speed change mechanism (6).

2. The extrusion mechanism moving device of the blow-fill-seal integrated machine according to claim 1, characterized in that: The guide rail (3) is located on both sides of the lead screw (2).

3. The extrusion mechanism moving device of the blow-fill-seal integrated machine according to claim 2, characterized in that: The driving component (4) is a handwheel, which is located on the outside of one of the guide rails (3). The speed change mechanism (6) is a right-angle reducer, and the handwheel is connected to the right-angle reducer through a transmission shaft (41).

4. The extrusion mechanism moving device of the blow-fill-seal integrated machine according to claim 2, characterized in that: The driving component (4) is a motor, which is located between the two guide rails (3), and the speed change mechanism (6) is a right-angle reducer.

5. The extrusion mechanism moving device of the blow-fill-seal integrated machine according to any one of claims 1 to 4, characterized in that: The speed change mechanism (6) is connected to the lead screw (2) via a star coupling (7).

6. A blow-fill-seal integrated machine, comprising an extrusion mechanism (5), a filling mechanism (8) passing through the discharge end of the extrusion mechanism (5), and a forming mechanism (9) disposed below the discharge end of the extrusion mechanism (5), characterized in that: The blow-fill-seal integrated machine also includes the extrusion mechanism moving device of the blow-fill-seal integrated machine according to any one of claims 1 to 5.

7. The blow-fill-seal integrated machine according to claim 6, characterized in that: The extrusion mechanism (5) includes an extrusion screw assembly (53) and a tube preform extrusion assembly (54). The first movable seat (51) and the second movable seat (52) are located at both ends of the extrusion screw assembly (53). The tube preform extrusion assembly (54) is connected to the discharge end of the extrusion screw assembly (53). The discharge end of the extrusion screw assembly (53) is provided with a water-cooled jacket (55).

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