CN214395084U

CN214395084U - Expandable resin raw material microwave pre-foaming machine

Info

Publication number: CN214395084U
Application number: CN202023033617.3U
Authority: CN
Inventors: 历三于
Original assignee: Hangzhou Fuyang Lianfa Epc Equipment Co ltd
Current assignee: Hangzhou Fuyang Lianfa Epc Equipment Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-15
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses an expandable resin raw materials microwave prefoaming machine belongs to plastics processing equipment technical field, and expandable resin raw materials microwave prefoaming machine includes: the microwave heating device comprises a rack, a stirring cylinder, a microwave generator and a silicon rubber heating plate, wherein the stirring cylinder is horizontally fixed in the rack, the silicon rubber heating plate is bonded at the outer bottom of the stirring cylinder, and the microwave generator for heating the inside of the stirring cylinder is arranged at the top of the stirring cylinder. The beneficial effects of the utility model are that heat through microwave generator and silicon rubber hot plate and combine together, be medium bulk heating, need not other heat transfer media, so fast, efficient, the cycle shortens greatly, and the energy consumption reduces, and this expandable resin raw materials microwave prefoamer does not have the noise simultaneously, does not poison gas and liquid and discharges, is favorable to the environmental protection.

Description

Expandable resin raw material microwave pre-foaming machine

Technical Field

The utility model relates to a plastic processing equipment technical field, more specifically the utility model relates to a foaming resin raw materials microwave prefoaming machine that says so.

Background

Steam is one of the conditions which must be met by the expandable resin raw material for prefoaming, and in addition, the expandable resin raw material is prefoamed by an electric heating mode, but the electric heating temperature rise is slow, and the temperature is not easy to control, so that the steam is adopted for prefoaming and molding of the model. The steam is obtained by adopting a steam boiler, a steam generator, an electric heater or an electromagnetic mode and the like.

However, the electric heater has high power and high operation cost; the heating temperature of the electric heating tube is not easy to control, and the production efficiency is low; the adoption of steam boilers and steam generators belongs to high-energy consumption and high-risk operation.

Therefore, the technical personnel in the field need to solve the problem that how to provide a heating speed block, wherein the heating temperature is easy to control, the production period can be shortened, and the production efficiency can be improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at solving among the prior art heating rate slow, the heating temperature is difficult to control, production cycle is long, the problem of inefficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the foaming resin raw material microwave pre-foaming machine comprises: frame, churn, microwave generator and silicon rubber hot plate, the churn level is fixed extremely in the frame, the outer bottom of churn bonds has the silicon rubber hot plate, the top of churn is provided with and is used for heating in the churn microwave generator.

Further, the stirring cylinder is internally provided with a stirring shaft, the stirring shaft is coaxially arranged with the stirring cylinder, two ends of the stirring shaft are respectively connected with two end faces of the stirring cylinder in a rotating manner, one end of the stirring shaft penetrates through one end face of the stirring cylinder and is fixed to a variable-frequency speed-regulating motor on the rack, and the variable-frequency speed-regulating motor is used for driving the stirring shaft to rotate.

Further, still include the automatic weighing loading hopper, the automatic weighing loading hopper be fixed in inside the frame and with the churn intercommunication is used for add the raw materials in the churn.

Further, still include pressurization atomizing device and hydrofuge fan, pressurization atomizing device with the hydrofuge fan all is fixed in inside the frame, and both all with the churn intercommunication, pressurization atomizing device is used for right cool off in the churn, the hydrofuge fan be used for with the moisture through cooling production in the churn is discharged by abandonment collection pipeline the churn.

Furthermore, an end face of the mixing drum is further provided with an atomized water butt joint port, an observation window, a bead outlet and a material level sensor, the atomized water butt joint port is used for butt joint with the pressurizing and atomizing device, and the bead outlet is connected with a bead suction fan.

Further, still include display screen and PLC controller, the PLC controller is connected with display screen, microwave generator, silicon rubber hot plate, automatic weighing loading hopper, pressurization atomizing device, hydrofuge fan and bead suction fan respectively.

Further, the microwave generator is provided with a plurality of magnetrons, and the plurality of magnetrons are arranged at the top of the stirring cylinder at intervals along the length direction of the stirring cylinder.

Known through foretell technical scheme, compare with prior art, the utility model discloses an expandable resin raw materials microwave pre-foaming machine has following beneficial effect: the heating of a microwave generator and a silicon rubber heating plate is combined, the traditional expandable resin raw material model manufacturing process is broken through steam heating foaming and steam forming, the traditional heating method firstly heats the surface of an object by means of a heat source through ways such as conduction, convection and the like, then the internal temperature is gradually increased from the outside to the inside through heat conduction, the heat transfer speed in most objects is very low, the external maturity and internal growth conditions occur, and therefore, a long time is needed for heating the whole object; the microwave generator heats the medium integrally without other heat transfer media, so that the heating speed is high, the efficiency is high, the period is greatly shortened, the energy consumption is reduced, the energy conversion efficiency is high, the heating speed is high, in addition, the microwave oven does not generate heat, but the microwave energy penetrates through the material, so that polar molecules in the material rub with each other to generate internal heat, and the liquid in the processed material is instantly heated, vaporized and pressurized to expand; the structure of macromolecular substances in the components is modified by the expansion force of gas, and the volatile matters of the white mold after molding return to zero, so that the production time efficiency of a foundry can be improved, the order arrangement plan of the foundry during order receiving is greatly simplified, the production periodicity is reduced, the production space is saved, and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a front view of an expandable resin raw material microwave pre-foaming machine provided by the present invention;

fig. 2 is a left side view of the microwave prefoaming machine for expandable resin raw material according to the present invention.

Wherein: 1 is a frame; 2 is a mixing drum; 3 is a microwave generator; 4 is a silicon rubber heating plate; 5 is an automatic weighing hopper; 6 is a pressurized atomization device; 7 is a moisture exhaust fan; 8 is a display screen; 9 is a PLC controller; 10 is a magnetron; 11 is a stirring shaft; 12 is a bearing seat; 13 is a variable frequency speed regulating motor; 14 is a waste collection pipeline; 15 is an atomized water interface; 16 is an observation window; 17 is a bead outlet; 18 is a material level sensor; bead aspiration blower 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the accompanying

drawings

1 and 2, the embodiment of the utility model discloses an expandable resin raw material microwave pre-foaming machine, includes: the device comprises a frame 1, a mixing drum 2, a microwave generator 3, a silicon rubber heating plate 4, an automatic weighing hopper 5, a pressurizing and atomizing device 6, a dehumidifying fan 7, a display screen 8 and a PLC (programmable logic controller) 9.

2 levels of churn are fixed to in the frame 1, the outer bottom of churn 2 bonds there is silicon rubber hot plate 4, the bonding area of silicon rubber hot plate 4 is the lower semicircle whole of churn 2, the top of churn 2 is provided with the microwave generator 3 that is used for heating in for churn 2, in this embodiment, churn 2 is stainless steel or aluminum alloy, microwave generator 3 has four magnetrons 10, four magnetrons 10 set up in the top of churn 2 along the length direction interval of churn 2, every magnetron 10 is connected with a generator power supply, magnetron 10 and generator power supply all set up in the box, the box is connected with churn 2.

Preferably, a stirring shaft 11 is arranged in the stirring cylinder 2, the stirring shaft 11 is coaxial with the stirring cylinder 2, two ends of the stirring shaft 11 are respectively rotatably connected with two end faces of the stirring cylinder 2 through a bearing seat 12, one end of the stirring shaft 11 penetrates through one end face of the stirring cylinder 2 and is connected with a variable frequency speed regulating motor 13 fixed to the rack 1, and the variable frequency speed regulating motor 13 is used for driving the stirring shaft 11 to rotate.

In this embodiment, automatic weighing loading hopper 5, pressurization atomizing device 6 and hydrofuge fan 7 all are fixed in frame 1 inside and communicate with churn 2, automatic weighing loading hopper 5 is used for adding an amount of raw materials for in the churn 2, pressurization atomizing device 6 is used for cooling down in the churn 2, be convenient for through the raw materials thermally equivalent inflation after the heating, hydrofuge fan 7 is used for carrying out centralized processing with the moisture that produces through the cooling in the churn 2 by abandonment collection pipeline 14 discharge churn 2.

In the above embodiment, one end surface of the mixing drum 2 is further provided with an atomized water docking port 15, an observation window 16, a bead outlet 17, and a level sensor 18, the atomized water docking port 15 is used for docking with the pressurized atomizing device 6, the bead outlet 17 is provided with a bead suction fan 19, specifically, the bead outlet 17 is provided with a three-way valve, one end of the three-way valve is connected with the bead outlet 17, the other end of the three-way valve is connected with the bead suction fan 19, the bead suction fan 19 is used for discharging pre-foamed beads from the mixing drum 2, and the level sensor 18 is used for sensing the height reached by the pre-foamed raw material in the mixing drum 2.

In this embodiment, the PLC controller 9 is respectively connected to the display screen 8, the microwave generator 3, the silicone rubber heating plate 4, the automatic weighing hopper 5, the pressurization atomization device 6, the moisture exhausting fan 7 and the bead sucking fan 19, the PLC controller 9 is configured to control the microwave generator 3, the silicone rubber heating plate 4, the automatic weighing hopper 5, the pressurization atomization device 6, the moisture exhausting fan 7 and the bead sucking fan 19 to start and stop working, wherein the display screen 8 is respectively connected to the microwave generator 3 and the silicone rubber heating plate 4, and is configured to display the temperature and humidity inside the mixing drum 2 and the temperature of the silicone rubber heating plate 4 outside the mixing drum 2.

The expandable resin raw material microwave pre-foaming machine is further explained by an expandable resin raw material pre-foaming method, which specifically comprises the following steps:

s1: starting variable frequency speed regulating motor 13

Starting a variable frequency speed regulating motor 13 through a PLC (programmable logic controller) 9, wherein the variable frequency speed regulating motor 13 drives a stirring shaft 11 to rotate clockwise;

s2: starting silicon rubber heating plate 4

The PLC 9 is used for starting the silicon rubber heating plate 4 to heat and preserve heat of the outer wall of the mixing drum 2;

s3: adding raw materials

A PLC (programmable logic controller) 9 is used for controlling an automatic weighing hopper 5 to add a certain amount of raw materials into the mixing drum 2;

s4: cooling and shaping of beads

According to the temperature and humidity in the mixing drum 2 displayed by the display screen 8 and the temperature outside the mixing drum 2 displayed by the display screen 8, when the temperature and humidity in the mixing drum 2 reach the pre-foaming temperature of the raw materials, the PLC 9 starts the pressurizing and atomizing device 6 to add atomized water into the mixing drum 2, cooling and shaping beads in the mixing drum 2, and meanwhile, the PLC 9 starts the moisture exhaust fan 7 to exhaust moisture in the mixing drum 2 and pentane overflowing from the raw materials through the waste collection pipeline 14;

s5: when the material level sensor 18 senses the volume of the bead expansion, the volume weight is converted, when the volume weight reaches a set value, the magnetron 10 stops working, the PLC 9 starts the bead suction fan 19, and the bead which is pre-sent is conveyed to the next process.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Expandable resin raw materials microwave prefoaming machine, its characterized in that includes: frame, churn, microwave generator and silicon rubber hot plate, the churn level is fixed extremely in the frame, the outer bottom of churn bonds has the silicon rubber hot plate, the top of churn is provided with and is used for heating in the churn microwave generator.

2. The microwave prefoaming machine for expandable resin raw material according to claim 1, wherein a stirring shaft is provided in said stirring cylinder, said stirring shaft is coaxially disposed with said stirring cylinder, and both ends of said stirring shaft are rotatably connected with both end surfaces of said stirring cylinder, respectively, one end of said stirring shaft penetrates through one end surface of said stirring cylinder and is connected with a variable frequency speed motor fixed to said frame, said variable frequency speed motor is used for driving said stirring shaft to rotate.

3. The microwave prefoaming machine for expandable resin raw material according to claim 2, further comprising an automatic weighing hopper, said automatic weighing hopper being fixed inside said frame and being in communication with said mixing drum for adding raw material into said mixing drum.

4. The microwave prefoaming machine for expandable resin raw materials according to claim 3, further comprising a pressurization atomization device and a moisture removal fan, wherein the pressurization atomization device and the moisture removal fan are both fixed inside the frame and are both communicated with the mixing drum, the pressurization atomization device is used for cooling the inside of the mixing drum, and the moisture removal fan is used for discharging moisture generated by cooling in the mixing drum from a waste collection pipeline.

5. The microwave pre-foaming machine for expandable resin raw materials according to claim 4, wherein an end surface of the mixing drum is further provided with an atomized water butt joint port, an observation window, a bead outlet and a material level sensor, the atomized water butt joint port is used for butt joint with the pressurized atomizing device, and the bead outlet is connected with a bead suction fan.

6. The microwave pre-foaming machine for expandable resin raw materials according to claim 5, further comprising a display screen and a PLC controller, wherein the PLC controller is respectively connected with the display screen, the microwave generator, the silicone rubber heating plate, the automatic weighing hopper, the pressurization atomizing device, the dehumidifying fan and the bead sucking fan.

7. The microwave prefoamer of expandable resinous feedstock of claim 1 wherein said microwave generator has a plurality of magnetrons, said plurality of magnetrons being spaced apart along the length of said mixing drum at the top of said mixing drum.