Blowing, filling and sealing equipment

Abstract

The utility model relates to the technical field of filling, and discloses blowing, filling and sealing equipment which comprises a base, supporting seats are fixedly installed at the two ends of the top of the base, a material conveying pipe penetrates through and is fixedly connected between the two supporting seats in an inserted mode, and a first motor is fixedly installed at the right end of the material conveying pipe. The output end of the first motor is fixedly connected with a screw rod extending into the conveying pipe, the side wall of the screw rod is provided with a spiral conveying blade attached to the inner wall of the conveying pipe, the diameter of the screw rod is gradually reduced from left to right, the top of the right end of the conveying pipe is fixedly provided with a hopper communicating with the conveying pipe, and the top of the hopper is fixedly provided with a top plate; according to the utility model, under the action of the stirring mechanism, plastic raw materials are not easy to block at the opening at the bottom end of the hopper, the raw materials can be stably conveyed, and pipe bodies with different thicknesses can be extruded by replacing inner pipes with different thicknesses, so that bottle bodies with different sizes can be conveniently prepared subsequently.

Description

Technical Field

[0001] This utility model belongs to the field of filling technology, specifically to blow-fill-seal equipment. Background Technology

[0002] Blow-fill-seal equipment is a type of packaging equipment used in the pharmaceutical, food, and cosmetic industries. It integrates three key processes—blow molding of plastic containers, product filling, and container sealing—into one machine, completing the transformation from plastic granules to packaged products in a continuous automated production process. Blow-fill-seal equipment mainly consists of three parts: an extrusion mechanism, a blow molding mechanism, and a filling mechanism. The extrusion mechanism of the blow-fill-seal equipment is the key part that transforms plastic raw materials into tubular preforms. However, in common blow-fill-seal equipment, the extrusion mechanism is prone to blockage when the plastic raw material enters the conveying pipe from the hopper during operation, resulting in intermittent extrusion of the plastic raw material and the inability to adjust the tubular size of the extruded material, making it inconvenient to produce bottles of different sizes. Therefore, this application proposes a blow-fill-seal equipment. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides the following technical solution: a blow-fill-seal device, including a base, with support seats fixedly installed at both ends of the top of the base, a conveying pipe passing through and fixedly inserted between the two support seats, a first motor fixedly installed at the right end of the conveying pipe, a screw extending into the inside of the conveying pipe fixedly connected to the output end of the first motor, spiral conveying blades that fit against the inner wall of the conveying pipe provided on the side wall of the screw, and the diameter of the screw gradually decreasing from left to right, a hopper communicating with the top of the right end of the conveying pipe fixedly installed, a top plate fixedly installed on the top of the hopper, a stirring mechanism extending into the hopper provided on the top plate, a discharge hole communicating with the inside of the conveying pipe opened at the left end of the conveying pipe, and a molding part fixedly installed at the left end of the conveying pipe.

[0004] Preferably, the bottom of the molding section is provided with a storage groove, and the top of the storage groove is provided with a feeding channel that connects with the discharge hole. An outer tube that runs vertically through the storage groove is inserted into the storage groove. A conical top cover is fixedly installed at the opening at the top of the outer tube. Multiple feeding holes are provided in a circular array on the edge of the side wall of the top cover. An inner tube is connected to the bottom of the top cover.

[0005] Preferably, a threaded groove is provided at the center of the bottom end of the top cover, a stud threaded into the threaded groove is fixedly installed at the center of the top of the inner tube, and a rib groove is provided at the center of the bottom end of the inner tube, with the bottom end of the inner tube flush with the bottom end of the outer tube.

[0006] Preferably, a threaded ring is fixedly connected to the bottom end of the outer wall of the outer tube, the inner wall of the threaded ring can be threaded to the bottom of the outer wall of the molding part, and multiple external protrusions are uniformly and fixedly installed on the outer wall of the threaded ring.

[0007] Preferably, the mixing mechanism includes a second motor, a rotating rod, three sets of mixing blades and a spiral blade. The second motor is fixedly installed at the center of the top of the top plate. The rotating rod is fixedly connected to the output end of the second motor, and the bottom end of the rotating rod extends to the opening at the bottom of the hopper. The three sets of mixing blades are evenly installed on the rotating rod, and the size of the three sets of mixing blades gradually decreases from top to bottom. The spiral blade is fixedly installed at the bottom end of the rotating rod, and the spiral blade is located at the opening at the bottom of the hopper.

[0008] Preferably, a heating sleeve is fixedly fitted on the outside of the conveying pipe, and an electric heating wire is spirally arranged inside the heating sleeve and fitted on the outside of the conveying pipe.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The three sets of stirring blades in the stirring mechanism can stir the plastic raw materials in the hopper, thereby preventing the raw materials from being blocked at the outlet at the bottom of the hopper. The spiral blades located at the outlet at the bottom of the hopper can not only prevent the raw materials from being discharged too quickly, but also, under its rotation, can stably transport the raw materials in the hopper to the conveying pipe.

[0011] By replacing the inner tube inside the outer tube, the distance between the inner wall of the outer tube and the outer wall of the inner tube can be changed, thereby extruding tubes of different thicknesses, which facilitates the subsequent blow molding of the tubes into bottles of different sizes. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of a partial cross-section of the present invention;

[0015] Figure 3 This is a cross-sectional structural diagram of the connection between the material conveying pipe and the molding part of this utility model;

[0016] Figure 4 This is a schematic diagram of the material conveying pipe and screw of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the outer tube, threaded ring, and top cover of this utility model;

[0018] Figure 6 This is a schematic diagram of the inner tube structure of this utility model;

[0019] In the diagram: 1. Base; 2. Support seat; 3. Feeding pipe; 4. Heating sleeve; 5. Heating wire; 6. First motor; 7. Screw; 8. Discharge hole; 9. Hopper; 10. Top plate; 11. Second motor; 12. Rotating rod; 13. Stirring blade; 14. Spiral blade; 15. Molding section; 16. Feeding channel; 17. Outer tube; 18. Top cover; 19. Feeding hole; 20. Inner tube; 21. Threaded ring; 22. Threaded groove; 23. Stud; 24. Rib groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figure 1-6 The present invention includes a base 1, with support seats 2 fixedly installed at both ends of the top of the base 1. A conveying pipe 3 is inserted through and fixedly connected between the two support seats 2. A first motor 6 is fixedly installed at the right end of the conveying pipe 3. A screw 7 extending into the interior of the conveying pipe 3 is fixedly connected to the output end of the first motor 6. Spiral conveying blades that fit against the inner wall of the conveying pipe 3 are provided on the side wall of the screw 7, and the diameter of the screw 7 gradually decreases from left to right. A hopper 9 communicating with the top of the right end of the conveying pipe 3 is fixedly installed. A top plate 10 is fixedly installed on the top of the hopper 9, and an extension extending into the hopper 9 is provided on the top plate 10. The stirring mechanism has a discharge hole 8 at the left end of the conveying pipe 3, which communicates with the inside of the pipe. A molding part 15 is fixedly installed at the left end of the conveying pipe 3. Under the action of the stirring mechanism, the plastic raw material is not easy to block the opening at the bottom of the hopper 9, and the raw material can be stably conveyed into the conveying pipe 3. The raw material is melted by shearing force and heating wire 5 in the conveying pipe 3 and enters the molding part 15. The molten raw material comes between the inner tube 20 and the outer tube 17 through multiple feed holes 19 on the top cover 18. By replacing the inner tube 20 with different thicknesses, tubes of different thicknesses can be extruded, which is convenient for the subsequent preparation of bottles of different sizes.

[0022] like Figure 1 and Figure 3As shown, the bottom of the molding section 15 is provided with a storage groove, and the top of the storage groove is provided with a feeding channel 16 that connects with the discharge hole 8. An outer tube 17 that runs vertically through the storage groove is inserted into the storage groove. A conical top cover 18 is fixedly installed at the opening at the top of the outer tube 17. Multiple feeding holes 19 are arranged in a circular array on the edge of the side wall of the top cover 18. The bottom of the top cover 18 is connected to an inner tube 20. By replacing the inner tube 20 with different sizes, the distance between the outer wall of the inner tube 20 and the inner wall of the outer tube 17 can be changed. Then, the hot-melted plastic comes between the inner tube 20 and the outer tube 17 through the multiple feeding holes 19 on the top cover 18. In this way, tubes of different thicknesses can be extruded.

[0023] like Figure 3 and Figure 6 As shown, a threaded groove 22 is provided at the center of the bottom end of the top cover 18, and a stud 23 threaded into the threaded groove 22 is fixedly installed at the center of the top of the inner tube 20. A rib groove 24 is provided at the center of the bottom end of the inner tube 20. The bottom end of the inner tube 20 is flush with the bottom end of the outer tube 17. The inner tube 20 can be screwed by using a hex wrench so that the stud 23 at the top of the inner tube 20 is threaded into the threaded groove 22 at the bottom of the top cover 18, thereby fixing the inner tube 20 inside the outer tube 17.

[0024] like Figure 1 , Figure 3 and Figure 5 As shown, a threaded ring 21 is fixedly connected to the bottom of the outer wall of the outer tube 17. The inner wall of the threaded ring 21 can be threaded to the bottom of the outer wall of the molding part 15. The outer wall of the threaded ring 21 is uniformly and fixedly equipped with multiple external protrusions. By threading the threaded ring 21 to the molding part 15, the outer tube 17 can be fixed in the storage groove at the bottom of the molding part 15. The multiple external protrusions on the outer wall of the threaded ring 21 make it easy to twist and rotate.

[0025] like Figure 1 and Figure 2 As shown, the stirring mechanism includes a second motor 11, a rotating rod 12, three sets of stirring blades 13, and a spiral blade 14. The second motor 11 is fixedly installed at the center of the top of the top plate 10. The rotating rod 12 is fixedly connected to the output end of the second motor 11, and the bottom end of the rotating rod 12 extends to the opening at the bottom of the hopper 9. The three sets of stirring blades 13 are evenly installed on the rotating rod 12, and the size of the three sets of stirring blades 13 gradually decreases from top to bottom. The spiral blade 14 is fixedly installed at the bottom end of the rotating rod 12, and the spiral blade 14 is located at the opening at the bottom of the hopper 9. Through the three sets of stirring blades 13 in the stirring mechanism, the plastic raw material in the hopper 9 can be stirred, thereby avoiding the blockage of the raw material at the outlet at the bottom of the hopper 9. The spiral blade 14 located at the outlet at the bottom of the hopper 9 can not only prevent the raw material from being discharged too quickly, but also stably transport the raw material in the hopper 9 to the conveying pipe 3 under its rotation.

[0026] like Figure 1 and Figure 2 As shown, a heating sleeve 4 is fixedly sleeved on the outside of the conveying pipe 3. An electric heating wire 5 is spirally arranged inside the heating sleeve 4 and sleeved on the outside of the conveying pipe 3. The electric heating wire 5 inside the heating sleeve 4 can heat the outside of the conveying pipe 3. Through the shearing force between the threaded conveying blade on the screw 7 and the inner wall of the conveying pipe 3, as well as the heating effect of the electric heating wire 5, the plastic raw material is heated and melted during the conveying process in the conveying pipe 3.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Blow-fill-seal apparatus comprising a base (1), characterised in that: Support seats (2) are fixedly installed at both ends of the top of the base (1). A conveying pipe (3) is inserted through and fixed between the two support seats (2). A first motor (6) is fixedly installed at the right end of the conveying pipe (3). A screw (7) extending into the inside of the conveying pipe (3) is fixedly connected to the output end of the first motor (6). A spiral conveying blade that fits against the inner wall of the conveying pipe (3) is provided on the side wall of the screw (7). The diameter of the screw (7) gradually decreases from left to right. A hopper (9) communicating with the top of the right end of the conveying pipe (3) is fixedly installed. A top plate (10) is fixedly installed on the top of the hopper (9). A stirring mechanism extending into the hopper (9) is provided on the top plate (10). A discharge hole (8) communicating with the inside of the conveying pipe (3) is opened at the left end of the conveying pipe (3). A molding part (15) is fixedly installed at the left end of the conveying pipe (3).

2. The blow-fill-seal apparatus of claim 1, wherein: The bottom of the molding part (15) is provided with a storage groove, and the top of the storage groove is provided with a feeding channel (16) that connects with the discharge hole (8). An outer tube (17) that runs vertically through the storage groove is inserted into the storage groove. A conical top cover (18) is fixedly installed at the opening at the top of the outer tube (17). Multiple feeding holes (19) are arranged in a circular array at the edge of the side wall of the top cover (18). The bottom of the top cover (18) is connected to an inner tube (20).

3. The blow-fill-seal apparatus of claim 2, wherein: A threaded groove (22) is provided at the center of the bottom end of the top cover (18), and a stud (23) threaded in the threaded groove (22) is fixedly installed at the center of the top of the inner tube (20), and a rib groove (24) is provided at the center of the bottom end of the inner tube (20), and the bottom end of the inner tube (20) is flush with the bottom end of the outer tube (17).

4. The blow-fill-seal apparatus of claim 3, wherein: The bottom end of the outer wall of the outer tube (17) is fixedly connected to a threaded ring (21). The inner wall of the threaded ring (21) can be threaded to the bottom of the outer wall of the molding part (15), and the outer wall of the threaded ring (21) is uniformly and fixedly equipped with multiple external protrusions.

5. The blow-fill-seal apparatus of claim 1, wherein: The stirring mechanism includes a second motor (11), a rotating rod (12), three sets of stirring blades (13) and a spiral blade (14). The second motor (11) is fixedly installed at the center of the top of the top plate (10). The rotating rod (12) is fixedly connected to the output end of the second motor (11), and the bottom end of the rotating rod (12) extends to the opening at the bottom of the hopper (9). The three sets of stirring blades (13) are evenly installed on the rotating rod (12), and the size of the three sets of stirring blades (13) gradually decreases from top to bottom. The spiral blade (14) is fixedly installed at the bottom end of the rotating rod (12), and the spiral blade (14) is located at the opening at the bottom of the hopper (9).

6. The blow-fill-seal device according to claim 1, characterized in that: A heating sleeve (4) is fixedly sleeved on the outside of the conveying pipe (3), and an electric heating wire (5) is spirally arranged inside the heating sleeve (4) and sleeved on the outside of the conveying pipe (3).

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