WO2024109827A1 - Blowing, filling and sealing mold device and forming method thereof, and continuous blowing, filling and sealing apparatus and usage method therefor - Google Patents

Abstract

A blowing, filling and sealing mold device, comprising a bottle body forming mold (5), a sealing mold (4) arranged on an upper side of the bottle body forming mold (5), an upper clamping component (7) arranged on an upper side of the sealing mold (4), and a lower clamping component (6) arranged on a lower side of the upper clamping component (7), wherein the sealing mold (4) is provided with a pushing member (41) for driving the upper clamping component (7) to synchronously move as the mold is closed; and the upper clamping component (7) is connected to a reset drive member (73). The forming method of the mold device comprises: S1, closing a bottle body forming mold (5) such that same is fitted to a blank body (10), forming a bottle body, and performing filling; S2, closing a sealing mold (4), and driving an upper clamping component (7) to synchronously move so as to fit to the blank body (10); S3, opening the bottle body forming mold (5) and then opening the sealing mold (4), or synchronously opening the bottle body forming mold (5) and the sealing mold (4); and S4, driving the upper clamping component (7) to separate from the blank body (10) by means of a reset drive member (73). Further provided are a continuous blowing, filling and sealing apparatus and a usage method therefor. By means of the device and the method, an improvement in the production efficiency and reduction in the number of impacts on the blank body are facilitated.

Description

Blow-fill-seal mold device and molding method, continuous blow-fill-seal equipment and use method

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on and claims priority to a Chinese patent application with an application date of "November 22, 2022", application number "202211467042.7", and invention name "Blowing, filling and sealing mold device and molding method, continuous blowing, filling and sealing equipment and use method". The full text of the Chinese patent application is hereby cited in this application as a part of this application.

Technical Field

The present invention relates to the technical field of food and medicine packaging equipment and methods, and in particular to a blow-fill-seal mold device and a molding method, a continuous blow-fill-seal equipment and a use method.

Background technique

The traditional blowing, filling and sealing machine is an intermittent equipment. The production process includes extrusion, molding, filling and punching. The molding die receives and cuts the extruded embryo at the extrusion station, and then the molding die is transferred to the filling station to complete the molding, filling and sealing processes. Finally, it is transferred to the punching station to separate the product from the waste. The production efficiency is low. At the same time, the transfer of the embryo during the production process is carried out in an open state, and there is a risk of contamination of the filling liquid by the external environment.

Chinese patent document (CN114835078A) discloses a continuous production blow-fill-seal equipment and its use method, which can continuously complete the extrusion, molding, filling and sealing processes, which is conducive to improving production efficiency. The embryo is in a closed state during the entire production process, avoiding the risk of contamination of the filling liquid by the external environment. Its use method can ensure that the embryo is always clamped and fixed at least at one place through the cooperation of the upper clamping component and the lower clamping component during the entire production process, which can effectively avoid the hidden danger of the embryo shaking when the bottle head mold and the bottle body mold are opened and closed, and further ensure the uniformity of the product. However, in this scheme, the upper clamping component and the bottle head mold act separately, that is, after the bottle head mold is closed, the upper clamping component clamps the embryo again. On the one hand, this method prolongs the cycle of the entire cycle process (the upper clamping component needs to wait until the bottle head mold is closed before clamping the embryo), which is not conducive to further improving production efficiency. On the other hand, the bottle head mold and the upper clamping component will have a total of two impacts on the embryo, which is not conducive to further maintaining the stability of the embryo. Chinese patent document (CN104837603B) discloses a device for manufacturing container products from plastic raw materials. This solution also clamps the embryo after the sealing process is completed, so the above-mentioned defects still exist.

Summary of the invention

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 mold device which is beneficial to improving production efficiency and reducing the number of impacts on the embryo body.

The present invention further provides a molding method of the above-mentioned blow-fill-seal mold device.

The present invention further provides a continuous blow-fill-seal equipment comprising the blow-fill-seal mould.

The present invention further provides a method for using the continuous blow-fill-seal equipment.

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

A blow-fill-seal mold device comprises a bottle body forming mold, a sealing mold arranged on the upper side of the bottle body forming mold, an upper clamping component arranged on the upper side of the sealing mold and a lower clamping component arranged on the lower side of the upper clamping component. The sealing mold is provided with a pushing member for driving the upper clamping component to move synchronously when the mold is closed, and the upper clamping component is connected to a reset driving member.

As a further improvement of the above technical solution:

The pushing member is a pushing plate.

A molding method for a blow-fill-seal mold device, wherein the following steps are completed during the movement of the bottle body molding mold, the sealing mold and the upper clamping component:

S1, bottle body molding: the bottle body molding mold is closed against the embryo, and the bottle body is filled after being formed;

S2, bottle head sealing: the sealing mold closes the mold and drives the upper clamping part to move synchronously against the embryo body;

S3, the bottle body forming mold is opened, and then the sealing mold is opened; or, the bottle body forming mold and the sealing mold are opened simultaneously;

S4, the reset driving member drives the upper clamping member to separate from the embryo body.

A continuous blow-fill-seal device comprises an extruder, an extrusion die connected to the extruder, a filling needle inserted into the extrusion die, a sealing mold located at the lower side of the extrusion die, an upper clamping component located at the upper side of the sealing mold, a bottle body forming mold located below the sealing mold, and a lower clamping component arranged at the lower side of the upper clamping component, wherein the lower clamping component is arranged on a first lifting mechanism, the sealing mold, the bottle body forming mold and the upper clamping component are arranged on a second lifting mechanism, the sealing mold is provided with a pushing member for driving the upper clamping component to move synchronously when the mold is closed, and the upper clamping component is connected to a reset driving member.

As a further improvement of the above technical solution: it also includes a gas supply component for providing clean gas to the area where the extrusion die head is located.

As a further improvement of the above technical solution: the lower clamping component includes a clamping plate, a bottle body positioning groove is provided on the inner side of the clamping plate, a bottle head positioning groove is provided below the bottle body positioning groove, and cooling channels are provided on the sides of the bottle body positioning groove and the bottle head positioning groove.

As a further improvement of the above technical solution: the clamping plate is connected to a first telescopic driving member and a first guide rod, and the first guide rod is inserted into the first guide seat.

As a further improvement of the above technical solution: the upper clamping component includes a wedge-shaped clamping block, and the wedge-shaped clamping block is connected to the reset driving member through a second guide rod, and the second guide rod is penetrated in the second guide seat.

As a further improvement of the above technical solution: the filling needle includes a filling needle body and a filling needle seat for installing the filling needle body, a cooling sleeve is provided between the filling needle body and the filling needle seat, and a through hole is provided on the side wall of the lower end of the cooling sleeve.

A method for using a continuous blow-fill-seal device comprises the following steps:

S1. Extrusion: The extruder converts the plastic raw material into plastic fluid, and the extrusion die extrude the plastic fluid into an embryo;

S2, bottle body molding: the bottle body molding mold closes the mold to seal the bottom embryo and mold the bottle body, and the second lifting mechanism drives the sealing mold, the bottle body molding mold and the upper clamping component to descend synchronously with the embryo;

S3, filling: the filling needle descends to the set position for filling, and resets after filling is completed;

S4, bottle head sealing: the sealing mold is closed and the pusher drives the upper clamping component to clamp the embryo body, and the second lifting mechanism drives the sealing mold, the bottle body molding mold and the upper clamping component to descend synchronously with the embryo body;

S5, bottle body clamping: the bottle body molding mold is opened, and the first lifting mechanism drives the lower clamping component to rise into the bottle body molding mold and then clamp the embryo;

S6. The sealing mold is opened, the upper clamping component remains clamped, the first lifting mechanism drives the lower clamping component to descend synchronously with the embryo, and the second lifting mechanism drives the sealing mold, the bottle body forming mold and the upper clamping component to descend synchronously with the embryo to the set position;

S7, reset: the upper clamping component is opened, the second lifting mechanism drives the sealing mold, the bottle body forming mold and the upper clamping component to rise to the initial position, the lower clamping component remains clamped, and the first lifting mechanism drives the lower clamping component to descend synchronously with the embryo;

S8. Repeat steps S2 to S7 until production is completed or the machine is shut down due to a fault.

Compared with the prior art, the advantages of the present invention are as follows: the blow-fill-seal mold device disclosed in the present invention is provided with a pushing member on the sealing mold. When the sealing mold is closed, the pushing member pushes the upper clamping member to clamp the embryo body synchronously. After the sealing mold is opened, the reset driving member is used to keep the upper clamping member clamped and drive the upper clamping member to reset. Since the upper clamping member and the sealing mold move synchronously without waiting, the period of the entire cycle process can be shortened, and the number of impacts on the embryo body can be reduced. Furthermore, compared with using the reset driving member to drive the upper clamping member to actively move synchronously with the sealing mold to abut against the embryo body, the upper clamping member is passively moved synchronously with the sealing mold to abut against the embryo body under the action of the pushing member. It is a purely mechanical structure, which is simpler and has lower cost. It does not require complex synchronous control, and the control error problem that is difficult to avoid in synchronous control will not occur. As long as the initial installation position of the upper clamping member, the pushing member and the sealing mold is accurate, it can be ensured that the position of the upper clamping member when clamping the embryo body is aligned with the position when the sealing mold is closed, avoiding the embryo body from tilting up and down, which is conducive to reducing the waste generated.

The present invention discloses a molding method for a blow-fill-seal mold device. When the sealing mold is closed, the upper clamping component is driven to synchronously clamp the embryo body. The reset driving component is used to drive the upper clamping component to reset. Since the upper clamping component and the sealing mold move synchronously without waiting, the period of the entire cycle process can be shortened and the number of impacts on the embryo body can be reduced.

The continuous blowing, filling and sealing equipment disclosed in the present invention can continuously complete the extrusion, molding, filling and sealing processes, which is beneficial to improving production efficiency. In the entire production process, the embryo is in a closed state, avoiding the risk of contamination of the filling liquid by the external environment. A pushing member is provided on the sealing mold. When the sealing mold is closed, the pushing member pushes the upper clamping member to synchronously clamp the embryo. After the sealing mold is opened, the reset driving member is used to keep the upper clamping member clamped and drive the upper clamping member to reset. Since the upper clamping member and the sealing mold move synchronously without waiting, the period of the entire cycle process can be shortened and the number of impacts on the embryo can be reduced. The lower clamping member can be driven by the first lifting mechanism to rise between the bottle body molding mold to clamp and fix the bottle body, effectively avoiding the embryo and the bottle body from shaking when the sealing mold and the bottle body molding mold are opened and closed.

The method for using the continuous blowing, filling and sealing equipment disclosed in the present invention continuously performs extrusion, molding, filling and sealing processes, thereby improving production efficiency. In the entire production process, the embryo is in a closed state, thereby avoiding the risk of contamination of the filling liquid by the external environment. When the sealing mold is closed, the upper clamping component is driven to synchronously clamp the embryo, and the reset driving component is used to drive the upper clamping component to reset. Since the upper clamping component and the sealing mold move synchronously without waiting, the period of the entire cycle process can be shortened, and the number of impacts on the embryo is reduced. The lower clamping component rises between the bottle body molding mold to clamp and fix the bottle body, thereby effectively avoiding the shaking of the embryo when the sealing mold and the bottle body molding mold are opened and closed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the three-dimensional structure of a blow-fill-seal mold device of the present invention.

FIG. 2 is a schematic diagram of the three-dimensional structure of the continuous blow-fill-seal equipment of the present invention.

FIG. 3 is a partial enlarged view of FIG. 2 .

FIG. 4 is a schematic diagram of the three-dimensional structure of the upper clamping component and the lower clamping component in the present invention.

FIG. 5 is a schematic diagram of the structure of the injection needle in the present invention.

FIG. 6 is a schematic diagram of the three-dimensional structure of the first lifting mechanism and the second lifting mechanism in the present invention.

FIG. 7 is a schematic structural diagram of the extrusion die head of the present invention.

FIG8 is a schematic diagram of the top view of the structure of the embryo extruded by the extrusion die head in the present invention.

FIG. 9 is a schematic diagram of the process of using the continuous blow-fill-seal equipment of the present invention.

FIG. 10 is an enlarged view of the pusher in FIG. 9 a .

FIG. 11 is an enlarged view of the pusher in FIG. 9 d .

FIG. 12 is an enlarged view of the push member in FIG. 9i.

FIG. 13 is an enlarged view of the push member in FIG. 9k .

The reference numerals in the figure indicate: 1. extruder; 2. extrusion die; 3. filling needle; 31. filling needle body; 32. filling needle seat; 33. cooling sleeve; 34. through hole; 4. sealing mold; 41. pushing member; 5. bottle body forming mold; 6. lower clamping member; 61. clamping plate; 62. bottle body positioning groove; 63. bottle head positioning groove; 64. cooling channel; 65. first telescopic driving member; 66. first guide rod; 67. first guide seat; 7. upper clamping member; 71. wedge clamping block; 72. second guide rod; 73. reset driving member; 74. second guide seat; 8. first lifting mechanism; 81. servo motor; 82. ball screw; 83. screw nut; 9. second lifting mechanism; 10. embryo; 20. bottle body.

Detailed ways

Unless the context clearly indicates an exception, the words "a", "an", "a kind" and/or "the" do not specifically refer to the singular, but may also include the plural. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the words "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1

FIG1 shows an embodiment of a blow-fill-seal mold device of the present invention. The blow-fill-seal mold device of this embodiment comprises a bottle body forming mold 5, a sealing mold 4 arranged on the upper side of the bottle body forming mold 5, an upper clamping component 7 arranged on the upper side of the sealing mold 4, and a lower clamping component 6 arranged on the lower side of the upper clamping component 7. The sealing mold 4 is provided with a pushing member 41 for driving the upper clamping component 7 to move synchronously when the mold is closed. The upper clamping component 7 is connected to a reset driving member 73 (such as a commonly used air cylinder, oil cylinder or electric push rod, etc.).

In the blow-fill-seal mold device of this embodiment, a pusher 41 is provided on the sealing mold 4. When the sealing mold 4 is closed, the pusher 41 pushes the upper clamping component 7 to synchronously clamp the embryo 10. After the sealing mold 4 is opened, the reset driving component 73 is used to keep the upper clamping component 7 clamped and drive the upper clamping component 7 to reset. Since the upper clamping component 7 and the sealing mold move synchronously without waiting, the cycle of the entire cycle process can be shortened and the number of impacts on the embryo 10 can be reduced. Furthermore, compared with using the reset driving component 73 to drive the upper clamping component 7 to actively move synchronously with the sealing mold 4 The upper clamping component 7 is pressed against the embryo 10, and the upper clamping component 7 is passively moved synchronously with the sealing mold 4 under the action of the pushing member 41 to press against the embryo 10. It is a purely mechanical structure, which is simpler and has lower cost. It does not require complicated synchronous control and will not have control error problems that are difficult to avoid in synchronous control. As long as the initial installation positions of the upper clamping component 7, the pushing member 41 and the sealing mold 4 are accurate, the position of the upper clamping component 7 when clamping the embryo 10 can be aligned with the position of the sealing mold 4 when the mold is closed, which can avoid the embryo 10 from tilting up and down, and is beneficial to reducing the waste generated in the left and right directions of the embryo 10.

When the reset driving member 73 is a cylinder, preferably, during the mold closing process, the pusher 41 pushes the upper clamping member 7 to move, and the rodless chamber of the cylinder is inflated to push the piston rod of the cylinder to extend, but the inflation speed cannot be too fast to avoid the upper clamping member 7 from separating from the pusher 41; or the upper clamping member 7 can be inflated immediately after contacting the embryo 10. Afterwards, when the sealing mold 4 is opened, the upper clamping member 7 can be immediately kept in a clamped state.

Furthermore, in this embodiment, the push member 41 is a push plate. The push plate can have a large contact area with the upper clamping member 7, which is conducive to the overall synchronous movement of the upper clamping member 7, and the structure is simple and reliable. Of course, in other embodiments, the push member 41 can also be a push rod, a push block, etc.

Embodiment 2

In the molding method of the blow-fill-seal mold device of this embodiment, the bottle body molding mold 5, the sealing mold 4 and the upper clamping component 7 move synchronously with the embryo 10 (preferably, they move downward to keep in sync with the embryo 10 that automatically moves downward under the action of gravity. Of course, in other embodiments, they can also move upward or in other ways, which will not be described in detail). The following steps are completed during the process:

S1, bottle body molding: the bottle body molding mold 5 is molded against the embryo 10, and the bottle body is filled after being formed;

S2, bottle head sealing: the sealing mold 4 closes the mold and drives the upper clamping component 7 to move synchronously against the embryo body 10;

S3, the bottle body forming mold 5 is opened, and then the sealing mold 4 is opened; or, the bottle body forming mold 5 and the sealing mold 4 are opened simultaneously;

S4, the resetting driving member 73 drives the upper clamping member 7 to separate from the embryo body 10.

In the molding method of the blow-fill-seal mold device of the present embodiment, when the sealing mold 4 is closed, the upper clamping component 7 is driven to synchronously abut against the embryo 10 (for example, the upper clamping component 7 is pushed to move by the pushing member 41 on the sealing mold 4), and the reset driving member 73 is used to drive the upper clamping component 7 to reset. Since the upper clamping component 7 and the sealing mold 4 move synchronously without waiting, the period of the entire cycle process can be shortened, and the number of impacts on the embryo 10 can be reduced.

Embodiment 3

2 to 8 show an embodiment of a continuous blow-fill-seal device of the present invention. The continuous blow-fill-seal device of this embodiment includes an extruder 1, an extrusion die 2 connected to the extruder 1, a filling needle 3 inserted in the extrusion die 2, a sealing mold 4 located at the lower side of the extrusion die 2, an upper clamping component 7 located at the upper side of the sealing mold 4, a bottle body forming mold 5 located below the sealing mold 4, and a lower clamping component 6 arranged at the lower side of the upper clamping component 7, wherein the lower clamping component 6 is arranged on a first lifting mechanism 8, the sealing mold 4, the bottle body forming mold 5 and the upper clamping component 7 are arranged on a second lifting mechanism 9, the sealing mold 4 is provided with a pushing member 41 for driving the upper clamping component 7 to move synchronously when the mold is closed, and the upper clamping component 7 is connected to a reset driving member 73. Taking the first lifting mechanism 8 as an example, in this embodiment, the first lifting mechanism 8 includes a servo motor 81, a ball screw 82 connected to the servo motor 81, and a screw nut 83 arranged on the ball screw 82. The lower clamping part 6 is connected to the screw nut 83. When in use, the servo motor 81 drives the ball screw 82 to rotate, and the screw nut 83 moves up and down on the ball screw 82. The lower clamping part 6 is lifted and lowered synchronously with the screw nut 83. The overall structure is simple, reliable, and has high motion accuracy. Of course, in other embodiments, the first lifting mechanism 8 can also adopt other forms. The second lifting mechanism 9 can have the same structure as the first lifting mechanism 8, which will not be repeated.

The continuous blowing, filling and sealing equipment of this embodiment can continuously complete the extrusion, molding, filling and sealing processes, which is conducive to improving production efficiency. In the entire production process, the embryo 10 is in a closed state, avoiding the risk of contamination of the filling liquid by the external environment; a pushing member 41 is provided on the sealing mold 4. When the sealing mold 4 is closed, the pushing member 41 pushes the upper clamping member 7 to synchronously clamp the embryo 10. After the sealing mold 4 is opened, the reset driving member 73 is used to keep the upper clamping member 7 clamped and drive the upper clamping member 7 to reset. Since the upper clamping member and the sealing mold act synchronously, there is no need to wait, so the period of the entire cycle process can be shortened, and at the same time The number of impacts on the embryo 10 is reduced; the upper clamping component 7 cooperates with the lower clamping component 6 to ensure that the embryo 10 is always clamped and fixed at least at one place, and can effectively avoid the hidden danger of the embryo 10 and the bottle body 20 shaking when the sealing mold 4 and the bottle body molding mold 5 are opened and closed during the entire production process, further improving the reliability of the equipment; the sealing mold 4 and the upper clamping component 7 are both arranged on the second lifting mechanism 9 to achieve synchronous lifting. Therefore, as long as the upper side of the sealing mold 4 and the lower side of the upper clamping component 7 are in contact during the initial installation, it can be ensured that they are always in contact during the entire working process, which is conducive to reducing the waste generated in the upper and lower directions of the embryo 10.

As a preferred embodiment, the continuous blow-fill-seal equipment further includes an air supply component (not shown in the figure, such as a blower, an air supply pipeline, etc.) for providing clean air to the area where the extrusion die head 2 is located. The air supply component provides clean oxygen-free gas (such as nitrogen or inert gas, etc.) to the area where the extrusion die head 2 is located, thereby ensuring a sterile, oxygen-free and clean environment during the molding, filling and sealing processes.

Furthermore, in this embodiment, the lower clamping component 6 includes a clamping plate 61, a bottle body positioning groove 62 is provided on the inner side of the clamping plate 61, a bottle head positioning groove 63 is provided below the bottle body positioning groove 62, and cooling channels 64 are provided on the sides of the bottle body positioning groove 62 and the bottle head positioning groove 63. Driven by the first lifting mechanism 8, the lower clamping component 6 can rise between the bottle body forming mold 5 (needed after the bottle body forming mold 5 is opened) and clamp and fix the bottle body of the upper bottle body 20 and the bottle head of the lower bottle body 20 at the same time, effectively avoiding the shaking of the embryo 10 when the sealing mold 4 and the bottle body forming mold 5 are opened and closed, and the coolant passed through the cooling channel 64 in the clamping plate 61 can cool the bottle body 20 after being formed, which is conducive to ensuring the consistency of the bottle body 20, and the coolant passed through the cooling channel 64 in the clamping plate 61 can cool the bottle body 20 after being formed, which is conducive to ensuring the consistency of the bottle body 20.

Furthermore, in this embodiment, the clamping plate 61 is connected to a first telescopic driving member 65 (such as a cylinder, an electric cylinder, a screw nut pair, etc.) and a first guide rod 66, and the first guide rod 66 is inserted into a first guide seat 67. The first guide rod 66 cooperates with the first guide seat 67 to provide a guide for the opening and closing action of the clamping plate 61, which is conducive to ensuring a smooth movement process and high movement accuracy.

Furthermore, in this embodiment, the upper clamping member 7 includes a wedge-shaped clamping block 71, which is connected to the reset driving member 73 through a second guide rod 72, and the second guide rod 72 is inserted into a second guide seat 74. The wedge-shaped clamping block 71 has high mechanical strength, and the thinner side is convenient for clamping the embryo 10 to reduce material waste, and the thicker side is convenient for connecting the second guide rod 72. The second guide rod 72 cooperates with the second guide seat 74 to provide a guide for the opening and closing action of the wedge-shaped clamping block 71, which is conducive to ensuring a smooth movement process and high movement accuracy.

Furthermore, in this embodiment, the injection needle 3 includes an injection needle body 31 and an injection needle seat 32 for mounting the injection needle body 31. A cooling sleeve 33 is provided between the injection needle body 31 and the injection needle seat 32. A through hole 34 is provided on the side wall at the lower end of the cooling sleeve 33. Cooling liquid can be introduced into the cooling sleeve 33, flows downward and then flows out from the through hole 34, and finally leaves the injection needle seat 32 from the gap between the cooling sleeve 33 and the injection needle seat 32. During the flow process, the liquid medicine in the injection needle body 31 can be kept warm to avoid the adverse effect of the high temperature embryo 10 on the liquid medicine.

Embodiment 4

FIG9 to FIG13 show an embodiment of a method for using a continuous blow-fill-seal device according to the present invention. The working method of the continuous blow-fill-seal device according to the present embodiment comprises the following steps:

S1, extrusion: the extruder 1 converts the plastic raw material into a plastic fluid, and the extrusion die 2 extrude the plastic fluid into an embryo 10, as specifically shown in FIG. 9a;

S2, bottle body molding: the bottle body molding mold 5 closes the bottom blank 10 and molds the bottle body, and the second lifting mechanism 9 drives the sealing mold 4, the bottle body molding mold 5 and the upper clamping component 7 to descend synchronously with the blank 10, as shown in FIG. 9b ;

S3, filling: the filling needle 3 descends to a set position for filling, and resets after the filling is completed, as shown in FIGS. 9b to 9c ;

S4, bottle head sealing: the sealing mold 4 is closed and the pusher 41 drives the upper clamping component 7 to clamp the embryo 10, and the second lifting mechanism 9 drives the sealing mold 4, the bottle body molding mold 5 and the upper clamping component 7 to descend synchronously with the embryo 10, as shown in FIG. 9d;

S5, bottle body clamping: the bottle body forming mold 5 is opened, and the first lifting mechanism 8 drives the lower clamping component 6 to rise into the bottle body forming mold 5 and then clamp the embryo 10, as shown in Figures 9e to 9h;

S6. The sealing mold 4 is opened, and the upper clamping component 7 remains clamped. The first lifting mechanism 8 drives the lower clamping component 6 to descend synchronously with the embryo 10. The second lifting mechanism 9 drives the sealing mold 4, the bottle body forming mold 5 and the upper clamping component 7 to descend synchronously with the embryo 10 to the set position, as shown in Figures 9i to 9j;

S7, reset: the upper clamping member 7 is opened, the second lifting mechanism 9 drives the sealing mold 4, the bottle body forming mold 5 and the upper clamping member 7 to rise to the initial position, the lower clamping member 6 remains clamped, and the first lifting mechanism 8 drives the lower clamping member 6 to descend synchronously with the embryo, as shown in FIGS. 9k to 91 ;

S8. Repeat steps S2 to S7 until production is completed or the machine is shut down due to a fault.

The method for using the continuous blowing, filling and sealing equipment of this embodiment continuously performs the extrusion, molding, filling and sealing processes, thereby improving the production efficiency. In the entire production process, the embryo 10 is in a closed state, thereby avoiding the risk of contamination of the filling liquid by the external environment. When the sealing mold 4 is closed, it drives the upper clamping component 7 to synchronously clamp the embryo 10, and the reset driving component 73 is used to drive the upper clamping component 7 to reset. Since the upper clamping component 7 and the sealing mold 4 act synchronously without waiting, the period of the entire cycle process can be shortened, and the number of impacts on the embryo 10 can be reduced. Through the cooperation between the upper clamping component 7 and the lower clamping component 6, it can be ensured that the embryo 10 is always clamped and fixed at least at one place, and the hidden danger of shaking of the embryo 10 when the sealing mold 4 and the bottle body molding mold 5 are opened and closed during the entire production process can be effectively avoided, further ensuring the uniformity of the product.

Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims (10)

1. A blow-fill-seal mold device comprises a bottle body molding mold (5), a sealing mold (4) arranged on the upper side of the bottle body molding mold (5), an upper clamping component (7) arranged on the upper side of the sealing mold (4), and a lower clamping component (6) arranged on the lower side of the upper clamping component (7), characterized in that: the sealing mold (4) is provided with a pushing member (41) for driving the upper clamping component (7) to move synchronously when the mold is closed, and the upper clamping component (7) is connected to a reset driving member (73).
2. The blow-fill-seal mold device according to claim 1 is characterized in that the pushing member (41) is a push plate.
3. A molding method of a blow-fill-seal mold device, characterized in that the following steps are completed during the movement of the bottle body molding mold (5), the sealing mold (4) and the upper clamping component (7):

   S1, bottle body molding: the bottle body molding mold (5) is molded against the embryo body (10), and the bottle body is filled after being molded;

   S2, bottle head sealing: the sealing mold (4) is closed and drives the upper clamping component (7) to move synchronously and abut against the embryo body (10);

   S3, the bottle body forming mold (5) is opened, and then the sealing mold (4) is opened; or, the bottle body forming mold (5) and the sealing mold (4) are opened simultaneously;

   S4. The resetting driving member (73) drives the upper clamping member (7) to separate from the embryo body (10).
4. A continuous blow-fill-seal device comprises an extruder (1), an extrusion die (2) connected to the extruder (1), a filling needle (3) inserted into the extrusion die (2), a sealing mold (4) located at the lower side of the extrusion die (2), an upper clamping component (7) located at the upper side of the sealing mold (4), a bottle body molding mold (5) located below the sealing mold (4) and a lower clamping component (6) located at the lower side of the upper clamping component (7), wherein the lower clamping component (6) is arranged on a first lifting mechanism (8), and the sealing mold (4), the bottle body molding mold (5) and the upper clamping component (7) are arranged on a second lifting mechanism (9), characterized in that: the sealing mold (4) is provided with a pushing member (41) for driving the upper clamping component (7) to move synchronously when the mold is closed, and the upper clamping component (7) is connected to a reset driving member (73).
5. The continuous blow-fill-seal equipment according to claim 4 is characterized in that it also includes a gas supply component for providing clean gas to the area where the extrusion die head (2) is located.
6. The continuous blowing, filling and sealing equipment according to claim 4 is characterized in that: the lower clamping component (6) includes a clamping plate (61), the inner side of the clamping plate (61) is provided with a bottle body positioning groove (62), a bottle head positioning groove (63) is provided below the bottle body positioning groove (62), and cooling channels (64) are provided on the sides of the bottle body positioning groove (62) and the bottle head positioning groove (63).
7. The continuous blowing, filling and sealing equipment according to claim 6 is characterized in that: the clamping plate (61) is connected to a first telescopic driving member (65) and a first guide rod (66), and the first guide rod (66) is inserted into the first guide seat (67).
8. The continuous blow-fill-seal equipment according to claim 4 is characterized in that: the upper clamping component (7) includes a wedge-shaped clamp block (71), and the wedge-shaped clamp block (71) is connected to the reset drive member (73) through a second guide rod (72), and the second guide rod (72) is inserted into the second guide seat (74).
9. The continuous blow-fill-seal equipment according to any one of claims 4 to 8 is characterized in that: the filling needle (3) includes a filling needle body (31) and a filling needle seat (32) for mounting the filling needle body (31), a cooling sleeve (33) is provided between the filling needle body (31) and the filling needle seat (32), and a through hole (34) is provided on the side wall of the lower end of the cooling sleeve (33).
10. A method for using a continuous blow-fill-seal device, characterized in that it includes the following steps:

    S1. Extrusion: the extruder (1) converts the plastic raw material into a plastic fluid, and the extrusion die (2) extrude the plastic fluid into an embryonic body (10);

    S2, bottle body molding: the bottle body molding mold (5) closes the bottom sealing embryo (10) and molds the bottle body, and the second lifting mechanism (9) drives the sealing mold (4), the bottle body molding mold (5) and the upper clamping component (7) to descend synchronously with the embryo (10);

    S3, filling: the filling needle (3) descends to the set position for filling and resets after filling is completed;

    S4, bottle head sealing: the sealing mold (4) is closed and the pushing member (41) drives the upper clamping member (7) to clamp the embryo (10), and the second lifting mechanism (9) drives the sealing mold (4), the bottle body forming mold (5) and the upper clamping member (7) to descend synchronously with the embryo (10);

    S5, bottle body clamping: the bottle body forming mold (5) is opened, and the first lifting mechanism (8) drives the lower clamping component (6) to rise into the bottle body forming mold (5) and then clamp the embryo (10);

    S6. The sealing mold (4) is opened, the upper clamping component (7) remains clamped, the first lifting mechanism (8) drives the lower clamping component (6) to descend synchronously with the embryo (10), and the second lifting mechanism (9) drives the sealing mold (4), the bottle body forming mold (5) and the upper clamping component (7) to descend synchronously with the embryo (10) to the set position;

    S7, resetting: the upper clamping component (7) is opened, the second lifting mechanism (9) drives the sealing mold (4), the bottle body forming mold (5) and the upper clamping component (7) to rise to the initial position, the lower clamping component (6) remains clamped, and the first lifting mechanism (8) drives the lower clamping component (6) to descend synchronously with the embryo;

    S8. Repeat steps S2 to S7 until production is completed or the machine is shut down due to a fault.