CN219214025U

CN219214025U - Polycarbonate extrusion device

Info

Publication number: CN219214025U
Application number: CN202223501660.7U
Authority: CN
Inventors: 郑现国; 宋庆锋
Original assignee: Yueyang Jingyuan Plastic Products Co ltd
Current assignee: Yueyang Jingyuan Plastic Products Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-20
Anticipated expiration: 2032-12-21

Abstract

The utility model provides a polycarbonate extrusion device, which comprises an extrusion pipe, a spiral conveying blade, a driving shaft and a feeding pipe; the utility model discloses a novel extrusion pipe, including extrusion pipe, screw conveying blade, drive shaft, fixed subassembly, feed pipe, extrusion pipe, fixed subassembly is equipped with to the lower extreme opening part of extrusion pipe, the lower extreme opening part of extrusion pipe has extrusion head through fixed subassembly demountable installation, the feed pipe is installed the outer wall on extrusion pipe upper portion, and with the inside intercommunication of extrusion pipe, the up end of extrusion pipe is closed setting, the drive shaft sets up in the extrusion pipe, just the upper end of drive shaft runs through the up end of extrusion pipe, just the drive shaft with the extrusion pipe is same axle center, screw conveying blade installs the drive shaft is located one section outer wall in the extrusion pipe. According to the utility model, the extrusion heads and the fixing assemblies which are detachably connected are arranged, so that the extrusion head with different outlet calibers can be replaced under more service conditions, the actual requirements are met, and the practicability is improved.

Description

Polycarbonate extrusion device

Technical Field

The utility model relates to the technical field of plastic preparation, in particular to a polycarbonate extrusion device.

Background

The polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant and BI-grade, and has good mechanical properties at ordinary use temperature. Compared with polymethyl methacrylate, the polycarbonate has good impact resistance, high refractive index and good processability, and has UL94V-0 level flame retardant property without additives. PC produced by a photogas method is selected as a raw material for producing the polycarbonate textile bobbin, wherein the new material is 80 percent and the regenerated material is 20 percent.

The production process flow is as follows:

batching, drying, injecting, finishing, polishing, heat treatment and preparing the product.

For example, the application number is: 202021470905.2, including taking the injection sleeve of melt filling mouth and extrusion mouth, the inside clearance fit of injection sleeve has the screw rod, and the upper and lower port department symmetry of injection sleeve is equipped with sleeve locking mechanism, is equipped with the screw rod transmission shaft of taking spacing mount table on the sleeve locking mechanism of upper port department, is equipped with the locking flange lid on the sleeve locking mechanism of lower port department, and the sleeve locking mechanism of upper and lower port department is gone up to the both ends suit respectively in the screw rod. The utility model provides a screw extrusion sleeve device with a closed port, which cancels an injection molding structure for extruding melt through a travel screw. In addition, the sleeve locking mechanism at two ends of the sleeve is simple in structure, can seal and install the screw, and the upper end input is sealed by adopting an end cover, the lower end is sealed by adopting a locking flange cover, and the sleeve locking mechanism is simple in structure and low in cost.

Although the design performs stroke-free rotation through the limit screws at the two ends of the sleeve, the injected polycarbonate melt is guided to be extruded by the threads of the screws, so that the stroke is reduced. In addition, the sleeve locking mechanism at two ends of the sleeve is simple in structure, can seal and install the screw, and the upper end input is sealed by adopting an end cover, the lower end is sealed by adopting a locking flange cover, and the sleeve locking mechanism is simple in structure and low in cost.

However, the extrusion head of the design cannot be disassembled and replaced, and when materials with different calibers are required to be extruded, the actual requirements cannot be completely met.

The present utility model is directed to a polycarbonate extrusion apparatus for solving the above-mentioned problems of the prior art.

Disclosure of Invention

In order to achieve the above object, the present utility model provides a polycarbonate extrusion apparatus comprising an extrusion pipe, a screw conveying blade, a driving shaft and a feeding pipe; the utility model discloses a novel extrusion pipe, including extrusion pipe, screw conveying blade, drive shaft, fixed subassembly, feed pipe, extrusion pipe, fixed subassembly is equipped with to the lower extreme opening part of extrusion pipe, the lower extreme opening part of extrusion pipe has extrusion head through fixed subassembly demountable installation, the feed pipe is installed the outer wall on extrusion pipe upper portion, and with the inside intercommunication of extrusion pipe, the up end of extrusion pipe is closed setting, the drive shaft sets up in the extrusion pipe, just the upper end of drive shaft runs through the up end of extrusion pipe, just the drive shaft with the extrusion pipe is same axle center, screw conveying blade installs the drive shaft is located one section outer wall in the extrusion pipe.

Preferably: and a sealing ring is arranged on the outer wall of the extrusion head.

Preferably: the fixed subassembly is the fixed pin, the outer wall of extruding the pipe is equipped with the mounting hole, the mounting hole intercommunication extrude inside the pipe, fixed pin sliding connection is in the mounting hole, extrude the outer wall of head be equipped with the fixed hole of fixed pin mutually supporting.

Preferably: the outer wall of the fixed pin is provided with an annular block, the inner wall of the mounting hole is provided with an annular groove which is recessed inwards, and the annular block extends into the annular groove and is in sliding connection with the annular groove.

Preferably: the outer wall of the fixed pin is sleeved with a spring, and two ends of the spring are fixedly connected with the annular groove and the annular block respectively.

Preferably: the fixed component is an external thread and an internal thread, the internal thread is arranged on the outer wall of the extrusion head, and the external thread is arranged on the inner wall of the opening of the extrusion pipe.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the extrusion heads and the fixing assemblies which are detachably connected are arranged, so that the extrusion head with different outlet calibers can be replaced under more service conditions, the actual requirements are met, and the practicability is improved.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is an enlarged view of area a of the present utility model;

fig. 4 is an enlarged view of zone b of the present utility model.

In the figure: 1. extruding a pipe; 11. a mounting hole; 111. an annular groove; 2. spiral conveying blades; 3. a drive shaft; 4. a feed pipe; 5. a fixing assembly; 51. a fixing pin; 511. an annular block; 52. an internal thread; 53. an external thread; 6. an extrusion head; 61. a seal ring; 62. a fixing hole; 63. and (3) a spring.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

The present utility model will be described in further detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 4, the present utility model provides a polycarbonate extrusion apparatus, which comprises an extrusion pipe 1, a screw conveying blade 2, a driving shaft 3 and a feeding pipe 4; the extrusion pipe 1's up end is closed setting, drive shaft 3 sets up in the extrusion pipe 1, just drive shaft 3's upper end runs through the up end of extrusion pipe 1, just drive shaft 3 with extrusion pipe 1 is the same axle center, screw conveyer blade 2 installs drive shaft 3 is located one section outer wall in the extrusion pipe 1, extrusion pipe 1's lower extreme opening part is equipped with fixed subassembly 5, extrusion pipe 1's lower extreme opening part is through fixed subassembly 5 demountable installation has extrusion head 6, inlet pipe 4 installs extrusion pipe 1 upper portion's outer wall, and with extrusion pipe 1 inside intercommunication is through setting up demountable connection's extrusion head 6 and fixed subassembly 5, does benefit to more has the service condition, changes extrusion head 6 of different outlet bore, and then satisfies actual demand, promotes the practicality.

Please refer to fig. 1 and 3: through setting up sealing washer 61, can laminate with the inner wall of extruding tube 1, and then promote the leakproofness, be fixed pin 51 through setting up fixed subassembly 5, extrude the outer wall of head 6 be equipped with fixed to complex fixed orifices 62, can insert in the fixed orifices 62 through fixed pin 51, make extrude head 6 fixed, and then accomplish the installation, through setting up annular block 511 and ring channel 111, do benefit to sliding connection fixed pin 51, through setting up spring 63, can promote fixed pin 51 card to the fixed inslot through spring 63.

The specific operation mode of the first embodiment of the utility model is as follows:

when the fixing pin 51 is required to be replaced, the fixing pin 51 is pulled towards the direction of the mounting hole 11, so that the fixing pin 51 is separated from the fixing hole 62, meanwhile, the fixing pin 51 drives the annular block 511 to slide in the annular groove 111, the annular block 511 extrudes the spring 63, after the fixing pin 51 is completely separated from the fixing hole 62, the extrusion head 6 is pulled out to complete disassembly, further, the replaced extrusion head 6 is inserted into the opening of the extrusion pipe 1, the fixing hole 62 is aligned with the mounting hole 11, the fixing pin 51 is further loosened, at the moment, the spring 63 rebounds to push the annular block 511, the annular block 511 drives the fixing pin 51 to move, the fixing pin 51 is clamped into the fixing hole 62, and the fixing of the extrusion head 6 is completed.

Embodiment two:

please refer to fig. 2 and 4: the fixed component 5 is provided with an external thread 53 and an internal thread 52, the internal thread 52 is arranged on the outer wall of the extrusion head 6, the external thread 53 is arranged on the inner wall of the opening of the extrusion pipe 1, and the fixed component 5 is provided with the external thread 53 and the internal thread 52, so that the extrusion head 6 can be conveniently installed through threaded connection, and the installation is enabled to be compact.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims

1. A polycarbonate extrusion device, characterized in that: comprises an extrusion pipe (1), a spiral conveying blade (2), a driving shaft (3) and a feeding pipe (4);

the utility model discloses a novel extrusion pipe, including extrusion pipe (1), drive shaft (3), feed pipe (4), screw conveying blade (2) are installed drive shaft (3) are located extrusion pipe (1)'s one section outer wall, extrusion pipe (1)'s lower extreme opening part is equipped with fixed subassembly (5), extrusion pipe (1)'s lower extreme opening part is through fixed subassembly (5) demountable installation extrusion head (6), feed pipe (4) are installed extrusion pipe (1) upper portion's outer wall, and with extrusion pipe (1) inside intercommunication.

2. The polycarbonate extrusion apparatus of claim 1, wherein: the outer wall of the extrusion head (6) is provided with a sealing ring (61).

3. The polycarbonate extrusion apparatus of claim 2, wherein: the fixing assembly (5) is a fixing pin (51), a mounting hole (11) is formed in the outer wall of the extrusion pipe (1), the mounting hole (11) is communicated with the inside of the extrusion pipe (1), the fixing pin (51) is slidably connected in the mounting hole (11), and a fixing hole (62) matched with the fixing pin (51) is formed in the outer wall of the extrusion head (6).

4. A polycarbonate extrusion apparatus according to claim 3, wherein: the outer wall of the fixing pin (51) is provided with an annular block (511), the inner wall of the mounting hole (11) is provided with an annular groove (111) recessed inwards, and the annular block (511) stretches into the annular groove (111) to be connected with the annular groove (111) in a sliding mode.

5. The polycarbonate extrusion apparatus according to claim 4, wherein: the outer wall of the fixing pin (51) is sleeved with a spring (63), and two ends of the spring (63) are fixedly connected with the annular groove (111) and the annular block (511) respectively.

6. The polycarbonate extrusion apparatus of claim 1, wherein: the fixing assembly (5) is provided with external threads (53) and internal threads (52), the internal threads (52) are arranged on the outer wall of the extrusion head (6), and the external threads (53) are arranged on the inner wall of the opening of the extrusion pipe (1).