CN215039669U

CN215039669U - Quick automatic control liquid silica gel + PC double-gel injection unit

Info

Publication number: CN215039669U
Application number: CN202120765647.9U
Authority: CN
Inventors: 郑银强; 俞军民; 秦宏; 姚海峰
Original assignee: Zhoushan Tongda Plastic Machinery Co ltd
Current assignee: Zhoushan Tongda Plastic Machinery Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-12-07
Anticipated expiration: 2031-04-15

Abstract

The quick self-control liquid silica gel + PC double-gel injection unit comprises a main screw, a rod handle, a feeding section, a compression section, a metering section, a check valve seat, a check valve shuttle, a screw head, a liquid silica gel machine barrel, a front body connecting body device, a PC machine barrel, an auxiliary screw, a channel connecting pipe, a conical flow limiting pipe, a front converging machine barrel and a transition nozzle. The utility model has the advantages that: the double-color silica gel injection molding unit adopts a double-cylinder component for plasticizing, a front connecting body, a flow passage connecting pipe, a front converging cylinder, a check valve seat, a check valve shuttle, a transition nozzle and the like to realize injection molding of injection systems with different properties and colors at one time, and has the advantages of material saving and high production rate; according to different double-color injection requirements, a control system with high sensitivity can be designed, the discharge control capability is enhanced, and different design patterns can be realized in a programmable manner, so that the high-quality double-color injection pattern automatic control is realized, and the double-color injection molding of thermoplastic plastics and thermosetting plastics is realized synchronously.

Description

Quick automatic control liquid silica gel + PC double-gel injection unit

Technical Field

The utility model relates to a quick automatic control liquid silica gel + PC dual gel injection unit belongs to mechanical technical field.

Background

Because an obvious limit exists between two plastic colors of the bicolor plastic part, a formed product has the characteristics of stable quality, good structural strength, beautiful appearance, capability of improving the added value of the product and the like, thereby meeting the special requirements of the plastic product on the aspects of product structure, service performance, appearance and the like and showing an accelerated development trend. Nowadays, double-color injection molding products are widely applied to almost all plastic fields such as electronic products, electric tools, medical products, household appliances, toys and the like, and accordingly, the manufacturing and forming of double-color molds and the research and development of double-color injection molding raw materials are rapidly developed, wherein the double-color injection molding products comprise double-color silica gel injection molding parts. However, in practical application, the problems that no obvious boundary exists between two kinds of color plastics or mixed points with different colors from the self color of a double-color mold product in double-color injection molding are always easy to appear in the processing of double-color silica gel injection molding parts, the product quality is unstable, the structural strength is poor, the automatic control capability of double-color injection patterns is poor, and the like. Therefore, if the influence of the process parameters of the double-color injection molding on the product quality can be analyzed by combining rheology and related software according to production practice, the double-color injection machine for thermoplastic plastics and thermosetting plastics is developed on the basis of the process parameter optimization scheme, and the double-color injection machine has certain economic value.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick automatic control liquid silica gel + PC dual gel injection unit.

The to-be-solved problem of the utility model is the unable high accuracy control double-colored injection pattern of current double-colored silica gel injection machine, there is not obvious limit between two kinds of colour plastics, defects such as shaping product quality is unstable, structural strength is poor.

For realizing the purpose of the utility model, the utility model adopts the technical proposal that:

quick automatic control liquid silica gel + PC double glue injection unit, including main screw, pole handle, feeding section, compression section, measurement section, check valve seat, check valve shuttle, screw head, liquid silica gel barrel, preceding body device that connects, PC barrel, vice screw rod, passageway connecting pipe, toper current-limiting pipe, preceding barrel and transition nozzle of converging, characterized by: install liquid silica gel barrel outside the main screw, liquid silica gel barrel front end outer wall connection precursor connects body device, the precursor connects body device outer wall connection PC barrel, install vice screw rod in the PC barrel, the screw head of vice screw rod is aimed at and is installed the passageway connecting pipe, toper current-limiting pipe is installed to passageway connecting pipe end, converge the barrel before the end of toper current-limiting pipe is installed, preceding barrel end-to-end connection that converges is installed on liquid silica gel barrel, the main screw rod comprises the pole handle in proper order, the feeding section, compression section and measurement section, install the check valve seat on the tail end of measurement section, install the check valve shuttle in the check valve seat, install the screw head in the check valve shuttle, the transition nozzle is installed in screw head alignment.

Furthermore, a control system is arranged on the front body connecting device, and different design patterns can be realized in a programmable mode.

Furthermore, the main screw is of a large length-diameter ratio and separated screw structure; the compression section and the metering section are provided with main and auxiliary threads; the tail end of the metering section is provided with a groove.

Further, the channel connecting pipe and the interior of the front confluence machine barrel are of hollow structures; the inner diameter of the channel connecting pipe is 2 times of the inner diameter of the front confluence cylinder.

Furthermore, the size of the front port diameter of the conical flow limiting pipe is 2 times that of the rear port diameter.

Furthermore, the front end of the channel connecting pipe is fixedly arranged in the PC machine barrel; the diameter size of the auxiliary screw is larger than the inner diameter size of the channel connecting pipe.

Further, the tail end outlet of the front confluence cylinder is arranged on the outer wall of the liquid silica gel cylinder at the joint of the compression section and the metering section.

The utility model has the advantages that: the double-color silica gel injection molding unit adopts a double-cylinder component for plasticizing, a front connecting body, a flow passage connecting pipe, a front converging cylinder, a check valve seat, a check valve shuttle, a transition nozzle and the like to realize injection molding of injection systems with different properties and colors at one time, and has the advantages of material saving and high production rate; can be according to different double-colored injection requirements, the control system that the design has high sensitivity, strengthen ejection of compact control ability, can realize different design patterns programmable, thereby realize high quality double-colored injection pattern automatic control, realize thermoplastic and thermosetting plastic double-colored injection moulding in step, and there is obvious limit between two kinds of colour plastics of shaping product, stable quality, structural strength is good, the outward appearance is beautiful, can promote the product added value, satisfy the special requirement of plastic products in multiple occasion, provide service for the injection high quality silica gel goods of application enterprise, higher economic value has.

Drawings

FIG. 1 is a schematic structural diagram of a fast self-control liquid silica gel + PC dual-gel injection unit;

FIG. 2 is a schematic structural diagram of a main screw of a rapid self-control liquid silica gel + PC double-gel injection unit;

FIG. 3 is a schematic structural diagram of a check valve seat and a check valve shuttle of the fast self-control liquid silica gel + PC double-gel injection unit;

in the figure: 1. the device comprises a main screw 11, a rod handle 12, a feeding section 13, a compression section 14, a metering section 15, a check valve seat 16, a check valve shuttle 17, a screw head 2, a liquid silica gel machine barrel 3, a front body connecting device 4, a PC machine barrel 5, an auxiliary screw 6, a channel connecting pipe 61, a conical flow-limiting pipe 7, a front confluence machine barrel 8 and a transition nozzle.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

A quick self-control liquid silica gel and PC double-gel injection unit comprises a main screw 1, a rod handle 11, a feeding section 12, a compression section 13, a metering section 14, a check valve seat 15, a check valve shuttle 16, a screw head 17, a liquid silica gel machine barrel 2, a precursor connecting body device 3, a PC machine barrel 4, an auxiliary screw 5, a channel connecting pipe 6, a conical flow limiting pipe 61, a front converging machine barrel 7 and a transition nozzle 8, wherein the liquid silica gel machine barrel 2 is installed outside the main screw 1 and used for extruding silica gel materials in a thread groove, the outer wall of the front end of the liquid silica gel machine barrel 2 is connected with the precursor connecting body device 3 and used for providing connection, the outer wall of the precursor connecting body device 3 is connected with the PC machine barrel 4 and used for extruding PC materials in the thread groove, the auxiliary screw 5 is installed inside the PC machine barrel 4 and used for melt extrusion of the PC materials, the channel connecting pipe 6 is installed in alignment with the screw head 17 of the auxiliary screw 5 and used for material circulation, the conical flow limiting pipe 61 is installed at the tail end of the channel connecting pipe 6, the tail end of the conical flow limiting pipe 61 is longitudinally provided with a front converging machine barrel 7 for material circulation convergence, the tail end of the front converging machine barrel 7 is connected and arranged on a liquid silica gel machine barrel 2, a main screw 1 sequentially comprises a rod handle 11, a feeding section 12, a compression section 13 and a metering section 14, a check valve seat 15 is arranged at the tail end of the metering section 14 and used for preventing material backflow, a check valve shuttle 16 is arranged in the check valve seat 15 and used for preventing material backflow, a screw head 17 is arranged in the check valve shuttle 16 and used for extruding materials, and a transition nozzle 8 is arranged on the screw head 17 in an aligning mode and used for ejecting the materials.

Furthermore, a control system is arranged on the front body connecting device 3, and different design patterns can be realized in a programmable mode.

Further, the main screw 1 is of a large length-diameter ratio and separated screw structure; the compression section 13 and the metering section 14 are provided with main and auxiliary threads; the metering section 14 terminates with a groove.

Further, the channel connecting pipe 6 and the front confluence cylinder 7 are hollow inside; the inner diameter of the passage connecting tube 6 is 2 times the inner diameter of the front confluence cylinder 7.

Further, the size of the front port diameter of the tapered flow limiting pipe 61 is 2 times that of the rear port diameter.

Further, the front end of the channel connecting pipe 6 is fixedly arranged in the PC machine barrel 4; the diameter size of the sub screw 5 is larger than the inner diameter size of the passage connection pipe 6.

Further, the terminal outlet of the front confluence cylinder 7 is installed on the outer wall of the liquid silica gel cylinder 2 at the joint of the compression section 13 and the metering section 14.

The using method comprises the following steps: according to different double-color injection requirements, different parameters are set through a control system on the front body connecting device 3, the machine is started, liquid silica gel raw materials enter the liquid silica gel machine barrel 2 through a feed inlet of the liquid silica gel machine barrel 2, meanwhile, PC raw materials are added into the PC machine barrel 4, and the main screw 1 and the auxiliary screw 5 rotate; by means of the thrust of the main screw 1, the liquid silica gel raw material sequentially passes through the feeding section 12, the compression section 13 and the metering section 14 to be compressed and mixed, meanwhile, the PC material enters the channel connecting pipe 6 by means of the thrust of the auxiliary screw 5, then enters the conical flow-limiting pipe 61, finally enters the liquid silica gel machine barrel 2 through the front converging machine barrel 7, is mixed with the liquid silica gel material uniformly mixed in the liquid silica gel machine barrel 2 at the joint of the compression section 13 and the metering section 14, and finally is extruded into the transition nozzle 8 through the screw head 17 to be subjected to injection molding.

Claims

1. Quick automatic control liquid silica gel + PC double glue injection unit, including main screw (1), pole handle (11), feeding section (12), compression section (13), measurement section (14), check valve seat (15), check valve shuttle (16), screw head (17), liquid silica gel barrel (2), precursor connect body device (3), PC barrel (4), vice screw rod (5), passageway connecting pipe (6), toper current-limiting pipe (61), preceding barrel (7) and transition nozzle (8) of converging, characterized by: the liquid silica gel machine barrel (2) is installed outside the main screw (1), the front end outer wall of the liquid silica gel machine barrel (2) is connected with the front body connecting device (3), the outer wall of the front body connecting device (3) is connected with the PC machine barrel (4), the auxiliary screw (5) is installed in the PC machine barrel (4), the screw head of the auxiliary screw (5) is aligned to and installed with the channel connecting pipe (6), the tail end of the channel connecting pipe (6) is provided with the conical flow-limiting pipe (61), the tail end of the conical flow-limiting pipe (61) is provided with the front converging machine barrel (7), the tail end of the front converging machine barrel (7) is connected and installed on the liquid silica gel machine barrel (2), the main screw (1) sequentially consists of a rod handle (11), a feeding section (12), a compression section (13) and a metering section (14), the tail end of the metering section (14) is provided with a check valve seat (15), and a check valve shuttle (16) is installed in the check valve seat (15), a screw head (17) is arranged in the check valve shuttle (16), and the screw head (17) is aligned with and provided with a transition nozzle (8).

2. The fast self-controlling liquid silica gel + PC dual-gel injection unit as set forth in claim 1, wherein: the front body connecting device (3) is provided with a control system which can realize different design patterns in a programmable way.

3. The fast self-controlling liquid silica gel + PC dual-gel injection unit as set forth in claim 1, wherein: the main screw (1) is of a large length-diameter ratio and separated screw structure; main and auxiliary threads are arranged on the compression section (13) and the metering section (14); the end of the metering section (14) is provided with a groove.

4. The fast self-controlling liquid silica gel + PC dual-gel injection unit as set forth in claim 1, wherein: the channel connecting pipe (6) and the front confluence machine barrel (7) are hollow; the inner diameter of the channel connecting pipe (6) is 2 times of the inner diameter of the front confluence cylinder (7).

5. The fast self-controlling liquid silica gel + PC dual-gel injection unit as set forth in claim 1, wherein: the size of the front port diameter of the conical flow limiting pipe (61) is 2 times of the size of the rear port diameter.

6. The fast self-controlling liquid silica gel + PC dual-gel injection unit as set forth in claim 1, wherein: the front end of the channel connecting pipe (6) is fixedly arranged in the PC machine barrel (4); the diameter size of the auxiliary screw rod (5) is larger than the inner diameter size of the channel connecting pipe (6).

7. The fast self-controlling liquid silica gel + PC dual-gel injection unit as set forth in claim 1, wherein: the tail end outlet of the front confluence cylinder (7) is arranged on the outer wall of the liquid silica gel cylinder (2) at the joint of the compression section (13) and the metering section (14).