CN113891231A

CN113891231A - Ear-hang mould pressing equipment for earphone production

Info

Publication number: CN113891231A
Application number: CN202111000551.4A
Authority: CN
Inventors: 高小朋
Original assignee: Shenzhen Ono Global Electroacoustic Co ltd
Current assignee: Shenzhen Ono Global Electroacoustic Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-01-04

Abstract

The invention relates to a mould pressing device, in particular to an ear-hang mould pressing device for producing earphones. The technical problem to be solved is as follows: the utility model provides an ear-hang molding equipment is used in earphone production that reuse of raw materials avoids causing the waste and guarantees staff's safety. The technical scheme of the invention is as follows: an ear-hang die-pressing device for producing earphones comprises: frame, baffle, first dead lever, first spring, first slide, second spring, layer board, first template, second template, feeding mechanism, liquefaction heating mechanism and mould pressing mechanism, frame side symmetry rotary type are equipped with the baffle, and frame inner wall symmetry is equipped with first dead lever, all slidingtype on the first dead lever is equipped with first slide. The liquid circulating pump starts, and the water in the second template gets into the condenser pipe for the condenser pipe cools off water, flows into the second template afterwards in, and then accelerates the shaping of raw materials, so need not the shaping that people waited for the raw materials.

Description

Ear-hang mould pressing equipment for earphone production

Technical Field

The invention relates to a mould pressing device, in particular to an ear-hang mould pressing device for producing earphones.

Background

The ear hook is an accessory for assisting the earphone to be hung on the ear, can help the earphone to be stably hung on the ear, and is convenient and quick to take and place; the ear-hang is a common earphone accessory, and the ear-hang adopts the silica gel material to make usually, because the soft contact nature and the feature of environmental protection of silica gel material, the ear-hang that adopts the silica gel material can effectively promote user's use impression for the plastic ear-hang, and the elasticity and the ductility of silica gel material are good, can conveniently dismantle.

The existing ear-hang molding equipment needs a worker to pour the raw material into a mold, then uses another mold to press, the raw material is easy to overflow when pressing, the waste is not only caused, the worker is easy to scald due to the higher temperature of the raw material, and therefore, the ear-hang molding equipment for producing the earphone, which is used for avoiding the waste and ensuring the safety of the worker due to the repeated utilization of the raw material, is provided in view of the above problems.

Disclosure of Invention

Raw materials spill over easily when overcoming to press, not only cause the waste, because raw materials self temperature is higher, still scald staff's shortcoming easily, and the technical problem that solves is: the utility model provides an ear-hang molding equipment is used in earphone production that reuse of raw materials avoids causing the waste and guarantees staff's safety.

The technical scheme of the invention is as follows: an ear-hanging die pressing device for earphone production comprises an outer frame, a baffle, a first fixed rod, a first spring, a first sliding plate, a second spring, a supporting plate, a first template, a second template, a feeding mechanism, a liquefying heating mechanism and a die pressing mechanism, wherein the baffle is arranged in a symmetrical and rotating mode on one side of the outer frame, the first fixed rod is symmetrically arranged on the inner wall of the outer frame, the first sliding plate is arranged on the first fixed rod in a sliding mode, the first spring is connected between one side of the first sliding plate and the first fixed rod on the same side, the supporting plate is arranged between the upper portion of the first sliding plate in a sliding mode, the second spring is connected between the supporting plate and the first sliding plate, the first template is placed on the supporting plate, the feeding mechanism is arranged on one side of the outer frame, the liquefying heating mechanism is arranged at the top of the outer frame, the liquefying heating mechanism heats raw materials, the die pressing mechanism is arranged on the left rear side of the inner wall of the outer frame, and presses the raw materials to be formed, and a second template is arranged on the die pressing mechanism.

Preferably, feeding mechanism is equipped with the on & off switch including on & off switch, first electric putter, first fixed plate and distance sensor in the middle of the frame inner wall, is equipped with first fixed plate in the middle of the frame inner wall, and first fixed plate top one side is equipped with distance sensor.

Preferably, liquefaction heating mechanism is equipped with the heat insulation frame including heat insulation frame, first solenoid valve, first temperature sensor, first apron and heating ring in the middle of the heat insulation frame, frame top, and heat insulation frame one side is equipped with first solenoid valve, is equipped with first temperature sensor in the heat insulation frame, and first apron has been placed at heat insulation frame top, and heat insulation frame is inside to be equipped with the heating ring.

Preferably, mould pressing means is including second electric putter, the second slide, the third spring, the second dead lever, third electric putter, clamp plate and second temperature sensor, frame inner wall one side is equipped with second electric putter, frame inner wall one side is equipped with the second dead lever, be equipped with the slide bar on the second electric putter telescopic link, the gliding type also is equipped with the slide bar on the second dead lever, all slidingtype is equipped with the second slide on the slide bar, second slide top all with be connected with the third spring between the slide bar of homonymy, the second template is connected with the second slide, be equipped with third electric putter in the middle of the top in the frame, third electric putter telescopic link bottom is equipped with the clamp plate, be equipped with second temperature sensor in the middle of second template one side.

Preferably, still including cooling body, cooling body is equipped with the second apron including second apron, condenser pipe and liquid circulating pump, second template top, and second apron top is equipped with the condenser pipe, and condenser pipe one side is equipped with liquid circulating pump.

Preferably, still including clout discharge mechanism, clout discharge mechanism is including third dead lever, discharging pipe and fourth spring, and first dead lever bottom one side all is equipped with the third dead lever, and slidingtype is equipped with the discharging pipe between the third dead lever, all is connected with the fourth spring between discharging pipe bottom both sides and the third dead lever.

Preferably, still including retrieving the mechanism, retrieve the mechanism including second fixed plate, collecting vessel and second solenoid valve, the bottom is equipped with the second fixed plate in the frame, has placed the collecting vessel on the second fixed plate, and the discharging pipe lower part is equipped with the second solenoid valve.

Preferably, the control box is further included, the control box is arranged on one side of the outer frame, a switching power supply, a power supply module and a control module are installed in the control box, the switching power supply supplies power to the whole equipment, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the power supply module is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; on & off switch, distance sensor, first temperature sensor and second temperature sensor all pass through electric connection with control module, and first electric putter, first solenoid valve, heating ring, second electric putter, third electric putter, liquid circulating pump and second solenoid valve all pass through relay control module with control module and are connected.

The beneficial effects are that: 1. when the liquid circulating pump is started, water in the second template enters the condensing pipe, so that the condensing pipe cools the water, and then the water flows into the second template, so that the forming of the raw material is accelerated, and people do not need to wait for the forming of the raw material;

2. the supporting plate moves backwards, so that the hole grooves in the supporting plate are aligned with the discharge pipe, redundant raw materials on the first die flow into and out of the discharge pipe through the hole grooves in the supporting plate and flow out of the discharge pipe, and therefore people can collect and reuse the redundant raw materials, and waste is avoided;

3. the second electromagnetic valve is opened, so that redundant raw materials fall into the collecting cylinder, and people can collect the redundant raw materials conveniently.

Drawings

Fig. 1 is a schematic overall perspective structure of the present invention.

Fig. 2 is a partial perspective view of the present invention.

Fig. 3 is a schematic perspective view of the feeding mechanism of the present invention.

Fig. 4 is an enlarged schematic perspective view of the invention at a.

Fig. 5 is a schematic perspective view of a first part of the liquefaction heating mechanism of the present invention.

Fig. 6 is a schematic perspective view of a second part of the liquefaction heating mechanism of the present invention.

Fig. 7 is a schematic perspective view of a third part of the liquefaction heating mechanism of the present invention.

Fig. 8 is a schematic perspective view of a first part of the mold pressing mechanism according to the present invention.

Fig. 9 is a schematic perspective view of a second part of the mold pressing mechanism of the present invention.

Fig. 10 is a perspective view of a first part of the cooling mechanism of the present invention.

Fig. 11 is a perspective view of a second part of the cooling mechanism of the present invention.

Fig. 12 is a perspective view of a first part of the residue discharge mechanism of the present invention.

Fig. 13 is a perspective view of a second part of the residue discharge mechanism of the present invention.

Fig. 14 is a perspective view of the first part of the recovery mechanism of the present invention.

Fig. 15 is a perspective view of a second part of the recycling mechanism of the present invention.

Fig. 16 is a circuit block diagram of the present invention.

Fig. 17 is a schematic circuit diagram of the present invention.

In the reference symbols: 1-outer frame, 2-baffle, 3-control box, 4-first fixed rod, 5-first spring, 6-first sliding plate, 7-second spring, 8-supporting plate, 801-first template, 802-second template, 9-feeding mechanism, 91-on-off key, 92-first electric push rod, 93-first fixed plate, 94-distance sensor, 10-liquefaction heating mechanism, 101-temperature insulation frame, 102-first electromagnetic valve, 103-first temperature sensor, 104-first cover plate, 105-heating ring, 11-mould pressing mechanism, 111-second electric push rod, 112-second sliding plate, 113-third spring, 114-second fixed rod, 115-third electric push rod, 116-pressing plate, 117-a second temperature sensor, 12-a cooling mechanism, 121-a second cover plate, 122-a condensation pipe, 123-a liquid circulating pump, 13-a residue discharge mechanism, 131-a third fixing rod, 132-a discharge pipe, 133-a fourth spring, 14-a recovery mechanism, 141-a second fixing plate, 142-a collection barrel, 143-a second electromagnetic valve.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

An ear-hanging molding device for earphone production, as shown in fig. 1-17, comprises an outer frame 1, a baffle 2, a first fixing rod 4, a first spring 5, a first sliding plate 6, a second spring 7, a supporting plate 8, a first template 801, a second template 802, a feeding mechanism 9, a liquefying heating mechanism 10 and a mold pressing mechanism 11, wherein the baffle 2 is arranged at the front side of the lower part of the outer frame 1 in a left-right symmetrical and rotating mode, the first fixing rod 4 is arranged at the middle part of the inner wall of the outer frame 1 in a left-right symmetrical mode, the first sliding plate 6 is arranged on the first fixing rod 4 in a sliding mode, the first spring 5 is connected between the rear side of the lower part of the first sliding plate 6 and the first fixing rod 4 at the same side, the supporting plate 8 is arranged between the upper parts of the first sliding plates 6 in a sliding mode, the second spring 7 is connected between the supporting plate 8 and the first sliding plate 6, the first template 801 is placed on the supporting plate 8, the feeding mechanism 9 is arranged at the right side of the middle part of the outer frame 1, the top of the outer frame 1 is provided with the liquefying heating mechanism 10, the left rear side of the inner wall of the outer frame 1 is provided with a mold pressing mechanism 11, and the mold pressing mechanism 11 is provided with a second template 802.

Feeding mechanism 9 is equipped with on & off switch 91 including on & off switch 91, first electric putter 92, first fixed plate 93 and distance sensor 94 in the middle part right side of frame 1, is equipped with first electric putter 92 in the middle of 1 upper portion inner wall rear side of frame, is equipped with first fixed plate 93 in the middle of 1 inner wall left side of frame, and first fixed plate 93 top right side is equipped with distance sensor 94.

The liquefaction heating mechanism 10 comprises a heat insulation frame 101, a first electromagnetic valve 102, a first temperature sensor 103, a first cover plate 104 and a heating ring 105, the heat insulation frame 101 is arranged at the top of the outer frame 1, the first electromagnetic valve 102 is arranged at the lower part of the heat insulation frame 101, the first temperature sensor 103 is arranged in the middle of the front side of the heat insulation frame 101, the first cover plate 104 is placed at the top of the heat insulation frame 101, and the heating ring 105 is arranged inside the heat insulation frame 101.

Mold pressing mechanism 11 is including second electric putter 111, second slide 112, third spring 113, second dead lever 114, third electric putter 115, clamp plate 116 and second temperature sensor 117, frame 1 inner wall left rear side is equipped with second electric putter 111, frame 1 inner wall right rear side is equipped with second dead lever 114, be equipped with the slide bar on the telescopic link of second electric putter 111, the slide formula also is equipped with the slide bar on second dead lever 114, all be equipped with second slide 112 on the slide bar in the slide formula, be connected with third spring 113 between the slide bar of second slide 112 top all and homonymy, second template 802 is connected with second slide 112, be equipped with third electric putter 115 in the middle of the top front side in frame 1, third electric putter 115 telescopic link bottom is equipped with clamp plate 116, be equipped with second temperature sensor 117 in the middle of second template 802 front side.

When people need to produce the ear-hang, a worker presses a power supply main switch to electrify the equipment, firstly, the first cover plate 104 is opened, a proper amount of raw materials are added into the heat insulation frame 101, the first cover plate 104 is closed, the on-off key 91 is pressed, the on-off key 91 sends a signal, the control module receives the signal to control the first electric push rod 92 to be started, the telescopic rod of the first electric push rod 92 drives the supporting plate 8 to move backwards, so as to drive the first template 801 and the first sliding plate 6 to move backwards, the first spring 5 is compressed, the distance sensor 94 sends a signal when detecting that the moving distance of the supporting plate 8 reaches a first preset value, the control module receives the signal to control the telescopic rod of the first electric push rod 92 to stop running, meanwhile, the control module also controls the heating ring 105 to be started, so that the heating ring 105 heats the raw materials, and sends a signal when the first temperature sensor 103 detects that the temperature of the raw materials reaches the preset value, the control module receives signals to control the heating ring 105 to be closed, and simultaneously the control module also controls the first electromagnetic valve 102 to be opened, so that raw materials fall onto the first template 801, the first template 801 and the supporting plate 8 move downwards due to the increase of the raw materials, the second spring 7 is compressed, the distance sensor 94 sends a signal when detecting that the moving distance of the supporting plate 8 reaches a second preset value, the control module receives signals to control the first electromagnetic valve 102 to be closed, simultaneously the control module also controls the second electric push rod 111 to be started for 2 seconds, the telescopic rod of the second electric push rod 111 drives the slide rod on the left side to move forwards, the slide rod on the left side drives the second sliding plate 112, the second template 802, the slide rod on the right side and the second temperature sensor 117 to move forwards, so that the second template 802 is positioned right above the first template 801, and after the second electric push rod 111 is started for 2 seconds, the control module also controls the third electric push rod 115 to be started for 2 seconds, the telescopic rod of the third electric push rod 115 drives the pressing plate 116 to move downwards, when the pressing plate 116 contacts with the second template 802, the second sliding plate 112 and the second temperature sensor 117 are further driven to move downwards, the third spring 113 is stretched, when the second template 802 contacts with the raw material, the raw material is further pressed and molded, after the raw material is cooled, the second temperature sensor 117 sends a signal when detecting that the temperature of the raw material is lower than a preset value, the control module receives the signal to control the telescopic rod of the third electric push rod 115 to move upwards for 2 seconds and then close, the pressing plate 116 is further driven to reset, the pressing plate 116 is separated from the second template 802, the second sliding plate 112 and the second temperature sensor 117 are driven to move upwards to reset under the reset action of the third spring 113, after the third electric push rod 115 is closed, the control module also controls the telescopic rod of the second electric push rod 111 to move backwards for 2 seconds and then close, and then drive the slide bar, second slide 112, second template 802 and second temperature sensor 117 reset, press switch key 91 again, switch key 91 signals, control module received signal control first electric putter 92 restarts, first electric putter 92 telescopic link extension drives layer board 8, first template 801 and first slide 6 move forward and reset, first spring 5 resets thereupon, distance sensor 94 sends out a signal when detecting the distance that layer board 8 moved and returning to the initial value, control module received signal control first electric putter 92 telescopic link stop operation, take out first template 801 afterwards, second spring 7 resets and then drives layer board 8 to reset, collect the ear-hang, reset first template 801 again, when need not use this equipment, press the power master switch and power off this equipment can.

Still including cooling body 12, cooling body 12 is equipped with second apron 121 including second apron 121, condenser pipe 122 and liquid circulation pump 123, second template 802 top, and second apron 121 top is equipped with condenser pipe 122, and the condenser pipe 122 rear side is equipped with liquid circulation pump 123.

When the second temperature sensor 117 detects that the temperature of the water in the second template 802 is higher than the preset value, a signal is sent, the control module receives the signal to control the liquid circulating pump 123 to be started, the water in the second template 802 enters the condensation pipe 122, the condensation pipe 122 cools the water, the cooled water continues to flow into the second template 802 to accelerate the forming of the raw material, when the second temperature sensor 117 detects that the temperature of the water in the second template 802 is lower than the preset value, a signal is sent, and the control module receives the signal to control the liquid circulating pump 123 to be closed.

Still including clout discharge mechanism 13, clout discharge mechanism 13 is including third dead lever 131, discharging pipe 132 and fourth spring 133, and first dead lever 4 bottom rear side all is equipped with third dead lever 131, and slidingtype is equipped with discharging pipe 132 between the third dead lever 131, all is connected with fourth spring 133 between discharging pipe 132 rear side bottom left and right sides and the third dead lever 131.

Layer board 8 moves backward, make the hole groove on layer board 8 align with discharging pipe 132, when layer board 8 because the increase of raw materials is when moving down, can drive discharging pipe 132 and move down, fourth spring 133 is compressed, make unnecessary raw materials flow into discharging pipe 132 through the hole groove on layer board 8 on the first mould, flow through discharging pipe 132, so people just can collect reuse to unnecessary raw materials, avoid causing the waste, when layer board 8 separates with discharging pipe 132, drive discharging pipe 132 under the effect that fourth spring 133 resets and reset.

Still including retrieving mechanism 14, retrieve mechanism 14 including second fixed plate 141, collecting vessel 142 and second solenoid valve 143, the bottom is equipped with second fixed plate 141 in the frame 1, has placed collecting vessel 142 on second fixed plate 141, and discharging pipe 132 lower part is equipped with second solenoid valve 143.

The distance sensor 94 sends a signal when detecting that the moving distance of the supporting plate 8 reaches a second preset value, the control module receives the signal to control the second electromagnetic valve 143 to be opened, so that redundant raw materials fall into the collecting cylinder 142, the second temperature sensor 117 sends a signal when detecting that the temperature of the raw materials is lower than the preset value, the control module receives the signal to control the second electromagnetic valve 143 to be closed, then the baffle 2 is opened, the collecting cylinder 142 is taken out, the raw materials are collected, then the collecting cylinder 142 is reset, and the baffle 2 is closed.

The control box 3 is arranged on the front left side of the top of the outer frame 1, a switching power supply, a power supply module and a control module are installed in the control box 3, the switching power supply supplies power to the whole equipment, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the power supply module is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the on-off key 91, the distance sensor 94, the first temperature sensor 103 and the second temperature sensor 117 are electrically connected with the control module, and the first electric push rod 92, the first electromagnetic valve 102, the heating ring 105, the second electric push rod 111, the third electric push rod 115, the liquid circulation pump 123 and the second electromagnetic valve 143 are all connected with the control module through the relay control module.

The above description is only an example of the present invention and is not intended to limit the present invention. All equivalents which come within the spirit of the invention are therefore intended to be embraced therein. Details not described herein are well within the skill of those in the art.

Claims

1. An ear-hanging die pressing device for earphone production is characterized by comprising an outer frame (1), a baffle (2), a first fixing rod (4), a first spring (5), a first sliding plate (6), a second spring (7), a supporting plate (8), a first template (801), a second template (802), a feeding mechanism (9), a liquefying and heating mechanism (10) and a die pressing mechanism (11), wherein the baffle (2) is symmetrically and rotatably arranged on one side of the outer frame (1), the first fixing rod (4) is symmetrically arranged on the inner wall of the outer frame (1), the first sliding plate (6) is arranged on the first fixing rod (4) in a sliding manner, the first spring (5) is connected between one side of the first sliding plate (6) and the first fixing rod (4) on the same side, the supporting plate (8) is arranged between the upper parts of the first sliding plate (6), the second spring (7) is connected between the supporting plate (8) and the first sliding plate (6), the first template (801) is placed on the supporting plate (8), the feeding mechanism (9) is arranged on one side of the outer frame (1), the liquefaction heating mechanism (10) is arranged at the top of the outer frame (1), the raw materials are heated by the liquefaction heating mechanism (10), the mold pressing mechanism (11) is arranged on the left rear side of the inner wall of the outer frame (1), the raw materials are pressed and molded by the mold pressing mechanism (11), and the second template (802) is arranged on the mold pressing mechanism (11).

2. The ear-hang die-pressing equipment for producing the earphones as claimed in claim 1, wherein the feeding mechanism (9) comprises an on-off switch (91), a first electric push rod (92), a first fixing plate (93) and a distance sensor (94), the on-off switch (91) is arranged on one side of the outer frame (1), the first electric push rod (92) is arranged in the middle of the inner wall of the outer frame (1), the first fixing plate (93) is arranged in the middle of the inner wall of the outer frame (1), and the distance sensor (94) is arranged on one side of the top of the first fixing plate (93).

3. The ear-hang die pressing equipment for producing the earphones as claimed in claim 2, wherein the liquefying and heating mechanism (10) comprises a heat insulation frame (101), a first electromagnetic valve (102), a first temperature sensor (103), a first cover plate (104) and a heating ring (105), the heat insulation frame (101) is arranged at the top of the outer frame (1), the first electromagnetic valve (102) is arranged at one side of the heat insulation frame (101), the first temperature sensor (103) is arranged in the middle of the heat insulation frame (101), the first cover plate (104) is placed at the top of the heat insulation frame (101), and the heating ring (105) is arranged inside the heat insulation frame (101).

4. The ear-hang die pressing equipment for producing the earphones as claimed in claim 3, wherein the die pressing mechanism (11) comprises a second electric push rod (111), a second sliding plate (112), a third spring (113), a second fixing rod (114), a third electric push rod (115), a pressing plate (116) and a second temperature sensor (117), the second electric push rod (111) is arranged on one side of the inner wall of the outer frame (1), the second fixing rod (114) is arranged on one side of the inner wall of the outer frame (1), a sliding rod is arranged on the telescopic rod of the second electric push rod (111), a sliding rod is also arranged on the second fixing rod (114) in a sliding manner, the second sliding plate (112) is arranged on the sliding rod in a sliding manner, the third spring (113) is connected between the top of the second sliding plate (112) and the sliding rod on the same side, the second die plate (802) is connected with the second sliding plate (112), the third electric push rod (115) is arranged in the middle of the top of the inner frame (1), the bottom of the telescopic rod of the third electric push rod (115) is provided with a pressing plate (116), and the middle of one side of the second template (802) is provided with a second temperature sensor (117).

5. The ear-hook die pressing device for producing the earphones as claimed in claim 4, further comprising a cooling mechanism (12), wherein the cooling mechanism (12) comprises a second cover plate (121), a condensation pipe (122) and a liquid circulating pump (123), the second cover plate (121) is arranged at the top of the second template (802), the condensation pipe (122) is arranged at the top of the second cover plate (121), and the liquid circulating pump (123) is arranged at one side of the condensation pipe (122).

6. The ear-hang die-pressing equipment for producing the earphones as claimed in claim 5, further comprising a surplus material discharging mechanism (13), wherein the surplus material discharging mechanism (13) comprises a third fixing rod (131), a discharging pipe (132) and a fourth spring (133), the third fixing rod (131) is arranged on one side of the bottom of the first fixing rod (4), the discharging pipe (132) is slidably arranged between the third fixing rods (131), and the fourth spring (133) is connected between two sides of the bottom of the discharging pipe (132) and the third fixing rod (131).

7. The ear-hang die-pressing device for producing the earphones according to claim 6, further comprising a recycling mechanism (14), wherein the recycling mechanism (14) comprises a second fixing plate (141), a collecting cylinder (142) and a second electromagnetic valve (143), the second fixing plate (141) is arranged at the bottom in the outer frame (1), the collecting cylinder (142) is placed on the second fixing plate (141), and the second electromagnetic valve (143) is arranged at the lower part of the discharging pipe (132).

8. The ear-hang die-pressing equipment for producing the earphones as claimed in claim 7, further comprising a control box (3), wherein the control box (3) is arranged on one side of the outer frame (1), a switching power supply, a power supply module and a control module are installed in the control box (3), the switching power supply supplies power to the whole equipment, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the power supply module is electrically connected with the control module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; on & off switch (91), distance sensor (94), first temperature sensor (103) and second temperature sensor (117) all pass through electric connection with control module, and first electric putter (92), first solenoid valve (102), heating ring (105), second electric putter (111), third electric putter (115), liquid circulation pump (123) and second solenoid valve (143) all pass through relay control module with control module and are connected.