CN210635714U

CN210635714U - Easy abluent liquid blows embedment automatic molding liquid filling machine

Info

Publication number: CN210635714U
Application number: CN201921752154.0U
Authority: CN
Inventors: 李明辉
Original assignee: Jiangxi Minji Medicine Co ltd
Current assignee: Jiangxi Minji Medicine Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-05-29
Anticipated expiration: 2029-10-18

Abstract

The utility model provides an easy-to-clean automatic molding and filling machine for liquid blowing, filling and sealing, which comprises a plastic blank control mechanism, wherein the plastic blank control mechanism comprises a screw extruder, a parison extrusion head and a temperature control system; the screw of the screw extruder comprises a rotating shaft and spiral blades arranged around a rotating shaft, the rotating shaft is of a hollow structure, the end part of the rotating shaft is communicated with the liquid suction end of the negative pressure liquid suction device, and a residual liquid inlet is formed in the side wall of the rotating shaft between the two adjacent layers of spiral blades. The residual liquid inlets are uniformly distributed on the screw rod, so that the residual liquid distributed at each position in the screw extruder can be more easily attracted by negative pressure, and the route of the residual liquid leaving the screw extruder is shortened and controllable as far as possible. In addition, degerming water can be input into the feed inlet, the negative pressure liquid suction device is started, the degerming water is disturbed in the spiral squeezer under the suction of negative pressure, and finally the degerming water is discharged out of the spiral squeezer through the residual liquid inlet, so that the cleaning effect on the spiral squeezer is enhanced.

Description

Easy abluent liquid blows embedment automatic molding liquid filling machine

Technical Field

The utility model discloses the pharmacy belongs to equipment technical field, specifically relates to an easy abluent liquid blows embedment automatic molding liquid filling machine.

Background

The bottle blowing-filling-sealing (BFS, blow filling and sealing for short) technology is developed in the 60 th century, is initially applied to filling liquid products, and has been developed into an advanced aseptic processing technology through further development. The BFS process emphasizes the aseptic control in the production process of the product, and comprises the realization of the conditions of production environment, aseptic filtration, online cleaning, online sterilization and the like in the whole process from the molding, the liquid preparation starting to the filling and sealing ending, so that 3 processes of bottle making, filling and sealing are all completed in the same aseptic environment under the protection of A-level air shower.

The automatic forming and filling machine for blow-filling and sealing can finish the forming, filling and sealing of plastic containers in a set of continuous processes in turn, and the basic working flow is as follows: heating and melting plastic particles by a screw injection extruder of the machine, and forming a parison by an extrusion head under the support of clean air; under the protection of A-level air shower and the help of a parison clamp, enabling the parison to enter a mold of a mold forming mechanism, and processing the parison into a container in the mold under the action of clean compressed air and vacuum; the filling mandrel mechanism is used for filling a product into the container and exhausting gas in the container; the container is sealed by the head die of the die, then the die is opened, and the product is sent out of the filling room by the mechanical arm through the channel and sent to the common production area.

In each unit mechanism forming the automatic blow-filling-encapsulating molding filling machine, the screw injection extruder is used as a place where thermoplastic plastic particles are melted, residual plastic particle hot melt liquid or a plastic film formed after the hot melt liquid is condensed again can be easily adhered to the inner wall of the screw injection extruder, and the screw injection extruder is required to be disassembled to thoroughly clean residual waste materials in the screw injection extruder. However, the automatic blow-filling molding and filling machine needs to operate in a strict aseptic environment, and if the automatic blow-filling molding and filling machine is disassembled for many times, the clean aseptic environment inside the automatic blow-filling molding and filling machine is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an easy abluent liquid blows embedment automatic molding liquid filling machine to improve the convenient degree that washs its screw rod extruder of moulding plastics that includes.

According to one aspect of the utility model, an easy-to-clean automatic molding and filling machine for liquid blowing, filling and sealing is provided, which comprises a plastic blank control mechanism for processing plastic particles into a plastic blank, wherein the plastic blank control mechanism comprises a screw extruder, a parison extrusion head and a temperature control system; the screw of the screw extruder comprises a rotating shaft and spiral blades arranged around a rotating shaft, the rotating shaft is of a hollow structure, the end part of the rotating shaft is communicated with the liquid suction end of the negative pressure liquid suction device, and a residual liquid inlet is formed in the side wall of the rotating shaft between the two adjacent layers of spiral blades.

Preferably, a residual liquid outlet is formed in one end, close to the discharge hole of the spiral extruder, of the rotating shaft, and the residual liquid outlet is communicated with a liquid suction end of the negative pressure liquid suction device.

Preferably, a guide plate inclined with respect to the rotating shaft is formed on a side wall of the rotating shaft between two adjacent layers of the helical blades, the guide plate is inclined toward the mass transfer direction of the helical blades, and the raffinate inlet needs to pass through the inner surface of the guide plate. The guide plate guides the material flowing through the guide plate to move towards the mass transfer direction of the spiral blade.

Preferably, the rotating shaft is formed by sequentially nesting a plurality of hollow circular truncated cone-shaped wall plates, the wall plates are used as guide plates, and a residual liquid inlet is formed at the nesting position of two adjacent guide plates.

Preferably, the cross-section of the wall plate is a curved trapezoid with the inclined side concave.

Preferably, both ends of the wall plate are respectively provided with an upper opening with a smaller radius and a lower opening with a larger radius, and the edge of the lower opening is formed with a baffle plate which is buckled inwards into the wall plate.

Preferably, an electric bar is provided inside the rotating shaft.

The utility model discloses regard as the blank preparation mechanism of liquid blowing embedment automatic molding liquid filling machine with the screw extruder, when clearance screw extruder, can start the supporting heating device of screw extruder, make the inside waste material of screw extruder be heated and melt for liquid, under negative pressure suction device's suction effect, the raffinate can be via setting up raffinate entry discharge screw extruder along the axle on the rotation axis of screw extruder. The residual liquid inlets are uniformly distributed on the screw rod, so that the residual liquid distributed at each position in the screw extruder can be more easily attracted by negative pressure, and the route of the residual liquid leaving the screw extruder is shortened and controllable as far as possible. In addition, degerming water can be input into the feed inlet, the negative pressure liquid suction device is started, the degerming water is disturbed in the spiral squeezer under the suction of negative pressure, and finally the degerming water is discharged out of the spiral squeezer through the residual liquid inlet, so that the cleaning effect on the spiral squeezer is enhanced.

Optionally, set up the deflector on the hob, its advantage is: when a screw rod of the screw extruder is in a normal working state (plastic particles and blanks formed after the plastic particles are melted are transferred to an extrusion head from a feeding hole), materials falling on the screw rod are firstly contacted with the outer surface of the guide plate and move towards the mass transfer direction of the screw blade under the guidance of the guide plate, so that the materials cannot block a residual liquid inlet in the mass transfer process.

Furthermore, the rotating shaft is formed by laminating hollow circular truncated cone-shaped wall plates, the side wall of the conical surface is directly used as a guide plate to facilitate processing and forming, the laminated part of the wall plates is used as a residual liquid inlet, and the formed residual liquid inlet is an annular opening surrounding the wall plates, so that residual liquid reaching the vicinity of the rotating shaft can be pumped in an all-round mode at 360 degrees. Simultaneously, the deflector can play better effect of sheltering from to the raffinate entry, avoids getting into the raffinate entry at normal mass transfer in-process material. Further, set up the wallboard into the curved edge trapezium structure that the cross section is the hypotenuse indent, the material that falls the wallboard surface naturally can avoid outside the indent along the surface to the direction motion of keeping away from the raffinate entry, and the material gets into the raffinate entry when avoiding normal mass transfer. And the baffle at the edge of the lower opening of the wall plate is arranged, so that the material can be prevented from entering a residual liquid inlet under the condition that the negative pressure liquid suction device does not work.

Optionally, an electric heating rod is additionally arranged inside the rotating shaft, and when residual liquid is cleaned, the electric heating rod is turned on to accelerate the melting of the thermoplastic waste material remained near the rotating shaft.

Drawings

Fig. 1 is a schematic structural diagram of a preform control system of a liquid blow-filling, automatic molding and filling machine provided in embodiment 1;

FIG. 2 is a pictorial view of the rotating shaft of the screw extruder;

FIG. 3 is a pictorial view of a wall plate of the rotating shaft;

FIG. 4 is a cross-sectional view taken along section line AA in FIG. 2;

FIG. 5 is a schematic view showing the direction of flow of the residual liquid into the rotary shaft and in the interior thereof, the arrows indicating the direction of flow of the residual liquid;

fig. 6 is a cross-sectional view taken along line BB in fig. 2.

In the above drawings, the numbering correspondence of each component is as follows: 1. the device comprises a screw extruder, 11. a rotating shaft, 111. a wall plate, 112. an upper opening, 113. a lower opening, 114. a baffle, 115. a connecting part, 12. a helical blade, 13. a feeding hole, 14. a discharging hole, 15. a raffinate inlet, 16. a raffinate outlet, 17. an electric heating rod, 2. a parison extrusion head and 3. a heat insulation electric heating sleeve.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In describing the preferred embodiment which is illustrated in the drawings, specific terminology may be resorted to for the sake of clarity; however, it is not intended that the disclosure herein be limited to the specific terminology so selected; and it is to be understood that each specific element includes all equivalent techniques that perform the same function, operate in a similar manner, and achieve a similar result.

Example 1

The automatic liquid blowing, filling, sealing and automatic forming and filling machine provided by the embodiment comprises a plastic blank control mechanism, a filling mandrel mechanism and a mold forming mechanism, wherein the plastic blank control mechanism is responsible for completing a process of processing plastic particles into a plastic blank, the mold forming mechanism is responsible for completing a process of forming and sealing a plastic container, and the filling mandrel mechanism is responsible for completing a process of filling liquid into the formed plastic container. The plastic blank control mechanism consists of a screw extruder 1, a plastic blank extrusion head 2 and a temperature control system. As shown in fig. 1, a feed inlet 13 is formed at the top of the screw extruder 1, a discharge outlet 14 connected to the parison extrusion head 2 is formed at the lower end of the screw extruder 1, a rotating shaft 11 having a periphery surrounding the helical blade 12 is installed at the middle of the lower end of the screw extruder 1, and the outer wall of the rotating shaft 11 and the helical blade 12 are integrally formed. The rotating shaft 11 is a hollow structure composed of a plurality of wall plates 111, as shown in fig. 2 and 3, the rotating shaft is in a hollow round table shape, and the cross section of the rotating shaft is a curved trapezoid with an inward-concave oblique side. An upper opening 112 with a smaller radius and a lower opening 113 with a larger radius are respectively arranged at two ends of the wall plate 111, and a baffle plate 114 which is buckled inwards to the wall plate 111 is further formed at the edge of the lower opening 113. As shown in fig. 4 and 6, the connection between the adjacent wall plates 111 is: the lower opening 113 of the upper wall plate 111 is sleeved outside the upper opening 112 of the lower wall plate 111, and 4 connecting parts 115 for fixedly connecting the two wall plates are arranged at the telescopic positions of the adjacent wall plates 111. In the rotating shaft 11, a ring-shaped residual liquid inlet 15 is formed at the overlapped position of the adjacent wall plates 111, the bottom end opening of the rotating shaft 11 is a residual liquid outlet 16, and an electric heating rod 17 is arranged inside the rotating shaft 11. As shown in fig. 1, when the assembly is completed, a heat-insulating electric jacket 3 belonging to a temperature control system is sleeved outside the screw extruder 1, the discharge port 14 of the screw extruder 1 is connected with the parison extrusion head 2, the inner diameter of each wall plate 111 constituting the rotating shaft 11 of the screw extruder 1 is gradually increased along the mass transfer direction of the helical blade 12, the residual liquid outlet 16 of the rotating shaft 11 is communicated with the liquid suction end of the negative pressure liquid suction device, and in the embodiment, a vacuum pump is selected as the negative pressure liquid suction device.

In a normal working state, the heat-insulating electric heating jacket 3 and the screw extruder 1 are started, thermoplastic plastic particles are put into a working space of the screw extruder 1 from a feeding hole 13 of the screw extruder 1, the plastic particles entering the screw extruder 1 are melted to form a blank, the blank moves towards a discharging hole 14 along with the rotation of the helical blade 12, and the material falling on the surface of the rotating shaft 11 slides onto the rotating blade at the lower layer along the concave side surface of the wall plate 111 of the rotating shaft 11. The blank reaches the parison extrusion head 2 and is extruded to form a parison in the shape of a tube open at both ends. The parison is extruded into an open mold of a mold forming mechanism, where it is formed into a plastic container. The filling mandrel mechanism comprises a set of filling needle points, when the mould passes through the filling needle points, the filling needle is lowered to enter the neck of the forming container, the precisely metered product to be filled is filled into the container (time pressure quantification method), and air in the container is discharged at the same time. When the filling needle tip is retracted, the mold seals the container. And unloading the sealed finished product by the mold, and finally conveying the finished product out of the equipment. The equipment starts to carry out the next production period, and the next production period is repeated in sequence and circularly operated.

When cleaning the screw extruder 1 of the liquid blowing, filling, sealing and automatic forming filling machine, the heat insulation electric heating jacket 3, the electric heating rod 17 and the vacuum pump are started. The residual material remained in the screw extruder 1 is transformed into residual liquid by hot melting at high temperature, and under the suction action of a vacuum pump: the raffinate adhering to the screw surface leaves the screw extruder 1 via the raffinate inlet 15 nearest thereto; the residual liquid attached to the inner wall of the screw extruder 1 may leave the screw extruder 1 through the residual liquid inlet 15 closest thereto, or may flow along the inner wall of the screw extruder 1 to the bottom of the screw extruder 1, collect at the bottom end of the rotary shaft 11, and finally leave the screw extruder 1 through the residual liquid inlet 15 at the bottom end of the rotary shaft 11. The direction of flow of the raffinate into and within the rotating shaft is shown in figure 5.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides an easy abluent liquid blows embedment automatic molding liquid filling machine, includes the plastic parison control mechanism who is used for processing the plastic pellet shaping base, plastic parison control mechanism includes screw extruder, parison extrusion head and temperature control system, its characterized in that:

the screw of the screw extruder comprises a rotating shaft and spiral blades arranged around the rotating shaft, the rotating shaft is of a hollow structure, the end part of the rotating shaft is communicated with a liquid suction end of the negative pressure liquid suction device, and a residual liquid inlet is formed in the side wall of the rotating shaft between the two adjacent layers of the spiral blades.

2. The easy-to-clean liquid blow-fill-seal automatic form-fill machine of claim 1, wherein: and a residual liquid outlet is formed in one end, close to the discharge hole of the screw extruder, of the rotating shaft, and the residual liquid outlet is communicated with a liquid suction end of the negative pressure liquid suction device.

3. The easy-to-clean liquid blow-fill-seal automatic form-fill machine of claim 2, wherein:

a guide plate inclined with respect to the rotating shaft is formed on the side wall of the rotating shaft between two adjacent layers of the helical blades, and the guide plate is inclined towards the mass transfer direction of the helical blades;

the raffinate enters the raffinate inlet and needs to pass through the inner surface of the guide plate.

4. The easy-to-clean liquid blow-fill-seal automatic form-fill machine of claim 3, wherein:

the rotation axis is formed by a plurality of wallboards that are cavity round platform form intussusception in proper order, with the wallboard is as deflector, adjacent two the intussusception department of deflector forms the raffinate entry.

5. The easy-to-clean liquid blow-fill-seal automatic form-fill machine of claim 4, wherein: the cross section of the wall plate is a curved trapezoid with an inward concave inclined edge.

6. The easy-to-clean liquid blow-fill-seal automatic molding and filling machine as claimed in claim 5, characterized in that: the two ends of the wall plate are respectively provided with an upper opening with a smaller radius and a lower opening with a larger radius, and the edge of the lower opening is provided with a baffle plate which is buckled inside the wall plate.

7. An easy-to-clean liquid blow-fill-seal automatic form-fill machine as claimed in any one of claims 1-6, characterized by: an electric heating rod is arranged inside the rotating shaft.