CN211031187U

CN211031187U - Hollow blow molding machine with extrusion protection

Info

Publication number: CN211031187U
Application number: CN201921796513.2U
Authority: CN
Inventors: 何云鹏; 费世明; 胡辉; 顾文贤
Original assignee: Bestar Blow Molding Technology Co ltd
Current assignee: Bestar Blow Molding Technology Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-07-17
Anticipated expiration: 2029-10-24

Abstract

A hollow blow molding machine with extrusion protection relates to the technical field of hollow blow molding machines; the device comprises a frame, wherein a machine head is arranged in the frame, a parison cutting mechanism is arranged on the frame at a parison outlet of the machine head, a die closing mechanism is arranged below the machine head, a die moving mechanism is in driving connection with the die closing mechanism, and a needle blowing mechanism is arranged on one side of the machine head; the extruder head is connected with an extrusion system, the extrusion system is driven by an asynchronous motor, and a sol pressure sensor and a rupture disk assembly are arranged on an adapter between the extrusion system and the extruder head; the induction rod is screwed into the rupture disk through threads, the rupture disk is clamped in the fixing clamp, the fixing clamp is fixed on the fixing plate through screws, the bolt is inserted on the induction rod, and the travel switch is fixed on the fixing plate through screws. The utility model discloses the stability of the whole device of effectual protection surpasss pressure disconnection shutdown protection, and the last rupture disk protection of preferential colloidal sol pressure has realized the stable production and the protection of equipment on the equipment.

Description

Hollow blow molding machine with extrusion protection

Technical Field

The utility model relates to a cavity blowing machine technical field, concretely relates to cavity blowing machine with extrude protection.

Background

As the domestic safety requirements are not high generally, a plurality of domestic devices lack certain protection measures. With the progress of the times, the safety level of the equipment is gradually improved. The blow molding machine changes plastic particles into plastic in a molten state by an extrusion device, and then extrudes the plastic through a die head to produce a parison. Wherein a high back pressure exists from the extrusion device to the die head, the back pressure is generated by extruding the plastic in a molten state, or impurities exist in the flow passage to block the flow passage opening. The excessive pressure causes screw fracture, and the clearance produces the hourglass gluey phenomenon. The post-maintenance equipment is very troublesome and even cannot be produced.

Disclosure of Invention

An object of the utility model is to provide a simple structure, reasonable in design, convenient to use's cavity blowing machine with extrude protection to prior art's defect and not enough.

In order to achieve the above object, the utility model adopts the following technical scheme: the device comprises a frame, wherein a machine head is arranged in the frame, a parison cutting mechanism is arranged on the frame at a parison outlet of the machine head, a die closing mechanism is arranged below the machine head, a die moving mechanism is in driving connection with the die closing mechanism, and a needle blowing mechanism is arranged on one side of the machine head; the extruder head is connected with an extrusion system, the extrusion system is driven by an asynchronous motor, and a sol pressure sensor and a rupture disk assembly are arranged on an adapter between the extrusion system and the extruder head; the rupture disk assembly comprises a rupture disk, an induction rod, a bolt, a fixing plate, a fixing clamp and a travel switch; the induction rod is screwed into the rupture disk through threads, the rupture disk is clamped in the fixing clamp, the fixing clamp is fixed on the fixing plate through screws, the plug pin is inserted in the induction rod, and the travel switch is fixed on the fixing plate through screws.

Further, the sol pressure sensor and the rupture disk assembly are respectively installed on the adapter through threads.

Furthermore, a heater is fixed on the adapter through a screw.

Further, the adapter is fixed with the die head through a connecting flange.

After the structure is adopted, the utility model discloses the beneficial effect who produces does: a cavity blowing machine with extrusion protection, installed melt pressure sensing additional, through melt pressure sensing's feedback, the stability of the whole device of effectual protection, simultaneously in order to avoid the interference of electrical apparatus, installed rupture disc subassembly additional again, rupture disc pressurized upper limit surpasss pressure disconnection shutdown protection, the last rupture disc protection of preferred sol pressure has realized the stable production and the protection of equipment on the equipment, the utility model has the advantages of simple structure, set up reasonable, the cost of manufacture low.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a block diagram of the adapter of the present invention;

FIG. 4 is a block diagram of section B-B of FIG. 3;

fig. 5 is a structural view of a rupture disc assembly of the present invention;

fig. 6 is a structural view of section D-D in fig. 5.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Referring to fig. 1 to fig. 6, the following technical solutions are adopted in the present embodiment: the device comprises a frame 1, wherein a machine head 2 used for extruding a tubular plastic parison is arranged in the frame 1, a parison cutting mechanism 3 capable of cutting off the tubular plastic parison output from a parison outlet is arranged on the frame 1 at the parison outlet of the machine head 2, a mould closing mechanism 4 is arranged below the machine head 2, the mould closing mechanism 4 is used for realizing mould opening or mould closing of a mould, a mould moving mechanism 6 drives the mould closing mechanism 4, the mould moving mechanism 6 adopts a mould moving oil cylinder to move the mould closing mechanism 4 to the lower part of a needle blowing mechanism 5, and the needle blowing mechanism is used for realizing air blowing and forming the tubular parison by air blowing; the machine head 2 is connected with an extrusion system 7, and the extrusion system is driven by an asynchronous motor to realize the rotation of the screw rod. A sol pressure sensor 9 and a rupture disk assembly 10 are arranged on an adapter 8 between the extrusion system and the machine head; the rupture disk assembly 10 comprises a rupture disk 11, an induction rod 12, a bolt 13, a fixing plate 14, a fixing clamp 15 and a travel switch 16; the induction rod 12 is screwed into the rupture disk 11 through threads, the rupture disk 11 is clamped in a fixing clamp 15, the fixing clamp 15 is fixed on a fixing plate 14 through screws, the plug pin 13 is inserted on the induction rod 12, and the travel switch 16 is fixed on the fixing plate 14 through screws.

The sol pressure sensor 9 and the rupture disk assembly 10 are respectively installed on the adapter 8 through threads.

The heater 17 is fixed on the adapter 8 through a screw.

The adapter 8 is fixed to the die head by means of a connecting flange 18.

After adopting above-mentioned structure, this embodiment produces beneficial effect does: this embodiment a hollow blow molding machine with extrude protection, installed melt pressure sensing additional, feedback through melt pressure sensing, the stability of the whole device of effectual protection, simultaneously in order to avoid the interference of electrical apparatus, installed rupture disc subassembly additional again, rupture disc pressurized upper limit, exceed pressure disconnection shutdown protection, the last rupture disc protection of preferred sol pressure on the equipment, realized the stable production and the protection of equipment, this embodiment has simple structure, set up rationally, cost of manufacture low grade advantage.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a blow molding machine with extrude protection which characterized in that: the device comprises a frame, wherein a machine head is arranged in the frame, a parison cutting mechanism is arranged on the frame at a parison outlet of the machine head, a die closing mechanism is arranged below the machine head, a die moving mechanism is in driving connection with the die closing mechanism, and a needle blowing mechanism is arranged on one side of the machine head; the extruder head is connected with an extrusion system, the extrusion system is driven by an asynchronous motor, and a sol pressure sensor and a rupture disk assembly are arranged on an adapter between the extrusion system and the extruder head; the rupture disk assembly comprises a rupture disk, an induction rod, a bolt, a fixing plate, a fixing clamp and a travel switch; the induction rod is screwed into the rupture disk through threads, the rupture disk is clamped in the fixing clamp, the fixing clamp is fixed on the fixing plate through screws, the plug pin is inserted in the induction rod, and the travel switch is fixed on the fixing plate through screws.

2. The blow molding machine with extrusion protection as claimed in claim 1, wherein: the sol pressure sensor and the rupture disk assembly are respectively installed on the adapter through threads.

3. The blow molding machine with extrusion protection as claimed in claim 1, wherein: the heater is fixed on the adapter through a screw.

4. The blow molding machine with extrusion protection as claimed in claim 1, wherein: the adapter is fixed with the die head through a connecting flange.