CN209825110U

CN209825110U - Novel corn popper

Info

Publication number: CN209825110U
Application number: CN201920581873.4U
Authority: CN
Inventors: 吕家骅
Original assignee: Guangzhou City Heng Si Electronics Co Ltd
Current assignee: Guangzhou City Heng Si Electronics Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2019-12-24
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a novel popcorn machine, which comprises a cabinet, a cabinet door and a control host, wherein a raw material bin for placing raw material bags, a discharging funnel, a heating box and a cabinet door hinged at the front side of the heating box are arranged in the cabinet, a feeding mechanism for pushing the raw material bags to the discharging funnel is arranged on the raw material bin, and an inclined scraper blade which can be adapted to a discharging opening of the discharging funnel is arranged at the inner side of the cabinet door; a support frame for supporting the heating box is arranged in the cabinet, and a driving mechanism for driving the box door to rotate is arranged on the support frame; the front side of support frame be equipped with the shipment slide that the chamber door suited, the bottom of cabinet door be equipped with can with the bottom of shipment slide suits get the goods storehouse. The utility model discloses a novel popcorn machine belongs to automatic popcorn machine technical field, has solved the technical problem that current popcorn can not be done at present, and structural design is reasonable, realizes that the present point of popcorn is done at present, obtains the popcorn of good quality.

Description

Novel corn popper

Technical Field

The utility model relates to an automatic puffed rice machine technical field, more specifically says, it relates to a novel puffed rice machine.

Background

At present, the popcorn machine on the market can not be made at the moment, most of the products purchased from the vending machine are the products made in the early time, and the taste of the popcorn is influenced after the popcorn is placed for a long time, so that the popcorn machine does not meet the requirements of consumers.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, the utility model aims at providing a novel puffed rice machine of doing now at present.

In order to achieve the purpose, the utility model provides a novel popcorn machine, which comprises a cabinet, a cabinet door and a control host, wherein a raw material bin for placing a raw material bag, a discharging hopper, a heating box and a cabinet door hinged at the front side of the heating box are arranged in the cabinet; a support frame for supporting the heating box is arranged in the cabinet, and a driving mechanism for driving the box door to rotate is arranged on the support frame; a delivery slide adapted to the box door is arranged on the front side of the support frame, and a goods taking bin adapted to the bottom end of the delivery slide is arranged at the bottom of the box door; and the cabinet door is provided with an operation panel in telecommunication connection with the control host.

Furthermore, the oblique scraper blade with be equipped with the interval that suits with the thickness of raw materials package between the bottom of heating cabinet, be equipped with the material blocking piece in the heating cabinet.

Furthermore, a spring extending forwards and a push plate arranged at the front end of the spring are arranged on the material blocking block.

As a further improvement, a speed reduction baffle is hinged to a discharge opening at the bottom end of the discharge funnel, and a first microswitch which can be matched with the outer side surface of the speed reduction baffle is installed on the discharge funnel.

As a further improvement, a protective frame surrounding the heating box is arranged on the supporting frame, a second microswitch matched with one end of the box door is arranged at one end of the protective frame, and a third microswitch matched with the other end of the box door is arranged on the front side of the top of the protective frame.

Furthermore, the feeding mechanism comprises a feeding motor, a spiral spring, a positioning plate and a connecting disc, a plurality of storage troughs are arranged on the raw material bin, a supporting plate is arranged on each storage trough, and a slot for installing the positioning plate is formed in the supporting plate.

Furthermore, the driving mechanism comprises a driving motor arranged on the supporting frame, a driving gear connected with the driving motor and a gear disc which is arranged on the outer side of the box door and is meshed with the driving gear.

Furthermore, the driving motor is vertically installed on the support frame, a position adjusting groove transversely extending is formed in the support frame, and the driving motor is installed on the support frame in a position-adjustable mode through a bolt structure.

As a further improvement, a plurality of pairs of photoelectric sensors arranged in rows are arranged on two sides of the delivery slide, and long grooves for probes of the photoelectric sensors to pass through are arranged on two side walls of the delivery slide.

Furthermore, the signal output ends of the first microswitch, the second microswitch, the third microswitch and the photoelectric sensor are connected with the signal input end of the control host, and the control host is in telecommunication connection with the driving motor, the feeding motor and the heating box.

Advantageous effects

Compared with the prior art, the utility model discloses a novel puffed rice machine's beneficial effect as follows:

(1) the utility model has reasonable structural design, realizes the spot production of the popcorn, can ensure the raw material to be heated evenly, and obtains the popcorn with good quality;

(2) the novel corn popper has compact structure and small volume;

(3) the novel corn popper with the motor provides power through the motor, the number of turns of the motor can be accurately controlled, the novel corn popper is more accurate relative to cylinder and hydraulic drive, the novel corn popper is simpler in structure, more accurate in control relative to cylinder transmission and gear transmission, and low in noise;

(4) the novel corn popper of this motor operation is stable, greatly reduced the fault rate, long service life.

Drawings

FIG. 1 is an exploded view of the internal structure of the novel popcorn maker of the present invention;

FIG. 2 is a schematic view of the novel popcorn maker of the present invention;

fig. 3 is a schematic structural view of the raw material bin and the feeding mechanism of the present invention;

fig. 4 is an exploded view of the structure of the raw material bin and the feeding mechanism of the present invention;

fig. 5 is a schematic structural view of the discharging hopper of the present invention;

fig. 6 is an exploded view of the structure of the discharging hopper of the present invention;

FIG. 7 is a schematic structural view of a heating box according to the present invention;

FIG. 8 is a top view of the internal structure of the heating chamber of the present invention;

fig. 9 is an exploded view of the structure of the middle support frame and the delivery slide of the present invention;

fig. 10 is an exploded view of the structure of the delivery slide of the present invention;

FIG. 11 is a schematic structural view of a heating box and a driving mechanism according to the present invention;

FIG. 12 is an exploded view of the heating chamber and the driving mechanism of the present invention;

fig. 13 is a schematic diagram of a part of a control circuit of the novel popcorn maker of the present invention.

In the figure: 1. a cabinet; 101. a cabinet door; 102. taking a goods warehouse; 103. a goods taking door; 104. a protection plate; 2. a raw material bin; 201. a storage tank; 202. a support plate; 203. a slot; 3. a protective frame; 301. a second microswitch; 302. a third microswitch; 303. a mounting seat; 4. a feeding mechanism; 401. a feeding motor; 402. a coil spring; 403. positioning a plate; 5. a discharging hopper; 501. a deceleration baffle; 502. a first microswitch; 503. the gear is convex; 504. an open slot; 505. a guide plate; 6. a heating box; 601. a box door; 602. an inclined scraper; 603. a material blocking block; 604. a spring; 605. pushing the plate; 606. a first induction plate; 607. a second induction plate; 7. a support frame; 8. a drive mechanism; 801. a drive motor; 802. a drive gear; 803. a gear plate; 804. a connecting seat; 805. a positioning groove; 9. a delivery slide; 901. a photosensor; 902. a long groove; 10. a control host; 11. positioning seats; 12. an operation panel.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

The specific implementation manner of the utility model is as follows: as shown in fig. 1-13, a novel popcorn machine comprises a cabinet 1, a cabinet door 101 and a control host 10, wherein the control host 10 is installed at the bottom of the cabinet 1, a raw material bin 2 for placing a raw material bag, a discharging funnel 5, a heating box 6 and a cabinet door 601 hinged at the front side of the heating box 6 are arranged in the cabinet 1, the raw material bag is filled with raw popcorn materials such as grains, the heating box 6 is a microwave oven, a feeding mechanism 4 for pushing the raw material bag to the discharging funnel 5 is arranged on the raw material bin 2, and an inclined scraper 602 capable of adapting to a discharging opening of the discharging funnel 5 is arranged on the inner side of the cabinet door 601; a supporting frame 7 for supporting the heating box 6 is arranged in the cabinet 1, and a driving mechanism 8 for driving the box door 601 to rotate is arranged on the supporting frame 7; the front side of the supporting frame 7 is provided with a delivery slide 9 adapted to the box door 601, the bottom of the box door 101 is provided with a goods taking bin 102 adapted to the bottom end of the delivery slide 9, and the box door 101 is provided with an operating panel 12 in telecommunication connection with the control host 10. In the novel corn popper, the control host 10 is connected with the heating box 6, the feeding mechanism 4 and the driving mechanism 8, and the heating box 6, the feeding mechanism 4 and the driving mechanism 8 are controlled to operate through the control host 10 through a circuit known by the technical personnel in the field.

When someone needs to buy popcorn, ordering can be carried out on the operation panel 12, the control host 10 controls the feeding mechanism 4 to push the raw material packet in the raw material bin 2 to the discharging funnel 5, the raw material packet slides onto the inclined scraper 602 through the discharging funnel 5 to enter the heating box 6 and falls below the inclined scraper 602, and the control host 10 delays the closing of the control box door 601 and then starts the heating box 6 to heat the raw material packet for a period of time; after the raw material bags are thermally expanded to form popcorn, the control host 10 controls the heating box 6 to stop working, the control box door 601 is opened, when the box door 601 is opened, the inclined scraper 602 can scrape the expanded raw material bags to the delivery slide 9, the popcorn bags fall into the goods taking bin 102 through the delivery slide 9, and a customer can take out the popcorn from the goods taking bin 102.

In this embodiment, be equipped with the interval that suits with the thickness of raw materials package between the bottom of oblique scraper blade 602 and heating cabinet 6, be equipped with in the heating cabinet 6 and keep off material block 603, keep off the material block 603 and set up outside the active region of oblique scraper blade 602, prevent that the raw materials package from getting into the corner of heating cabinet 6 and making oblique scraper blade 602 can not scrape out the raw materials package after the inflation outside heating cabinet 6. The front side of the inclined scraper 602 is provided with a mandril connected with the box door 601, and one end of the inclined scraper 602 is provided with a flanging structure connected with the box door 601 in a turnover manner, so that the inclined scraper 602 is firmly connected with the box door 601.

Keep off the material piece 603 and be equipped with the spring 604 that extends the setting forward and locate the push pedal 605 of spring 604 front end, the rear end of spring 604 is fixed on a connecting plate, the connecting plate welds the leading flank at keeping off material piece 603, the raw materials package slides to the heating cabinet 6 in through oblique scraper blade 602, because the effect that blocks of keeping off material piece 603, after chamber door 601 closes completely, the raw materials package is located the outside of oblique scraper blade 602, and raw materials package landing makes can be to push pedal 605, spring 604 strikes, can push the raw materials package to the intermediate position of heating cabinet 6 when push pedal 605 and spring 604 rebound, guarantee that raw materials package heating is even, obtain the popcorn of high quality.

In this embodiment, the control host 10 is disposed at the bottom of the cabinet 1, and the space below the delivery slide 9 is fully utilized for arrangement, so that the occupied space is small, the compact structure of the cabinet 1 is ensured, and the volume of the cabinet 1 is smaller.

In this embodiment, the goods-taking door 103 is hinged to the goods-taking opening of the goods-taking bin 102, when the cabinet door 101 is closed, the opening of the goods-taking bin 102 faces the lower end opening of the goods-discharging slide 9, and the goods-taking door 103 is pushed from the outside of the cabinet 1, so that the user can reach the goods-taking bin 102 to take popcorn. The protection plate 104 which is matched with the upper surface of the goods taking door 103 is arranged above the goods taking bin 102 on the inner side of the cabinet door 101, and the protection plate 104 can prevent a child from stretching into the cabinet to be scalded by the heating box 6.

In this embodiment, a deceleration baffle 501 is hinged to a discharge opening at the bottom end of the discharge funnel 5, a first microswitch 502 which can be adapted to the outer side surface of the deceleration baffle 501 is installed on the discharge funnel 5, and the deceleration baffle 501 prevents the raw material bag from sliding onto a movable blind area of the inclined scraper 602 due to too high falling speed of the raw material bag; the contact of the first microswitch 502 is abutted against the outer side surface of the speed reduction baffle 501, and the first microswitch 502 sends signals for delaying the closing of the control box door 601 and the delayed opening of the heating box 6 to the control host 10, so that the control host 10 controls the operation of the driving mechanism 8 and the heating box 6.

In this embodiment, the blanking funnel 5 is provided with a shift protrusion 503 adapted to the outer side surface of the speed reduction baffle 501, so as to prevent the speed reduction baffle 501 from being opened too much; the feed opening department of 5 bottoms ends of unloading funnel is equipped with the open slot 504 of installation speed reduction baffle 501, and the outside protrusion in both ends of speed reduction baffle 501 is provided with the deflector 505 that suits with the two cell walls of open slot 504, guarantees that speed reduction baffle 501 can smooth-going rotation, has solved because deckle edge appears in the both ends of speed reduction baffle 501 and the dead problem of two cell wall blocks of open slot 504.

In this embodiment, the supporting frame 7 is provided with a protection frame 3 surrounding the heating box 6, and the protection frame 3 presses the heating box 6 onto the supporting frame 7 to prevent the microwave oven from being displaced and affecting the meshing of the gears. One end of the protection frame 3 is provided with a second microswitch 301 which can be matched with one end of the door 601, the front side of the top of the protection frame 3 is provided with a third microswitch 302 which is matched with the other end of the door 601, and the second microswitch 301 and the third microswitch 302 are travel switches. The top of the box door 601 is provided with a second sensing plate which is perpendicular to the top surface of the box door 601 and is adapted to the contact of the third microswitch 302, and one end of the box door 601 is provided with a first sensing plate which is perpendicular to the side surface of the box door 601 and is adapted to the contact of the second microswitch 301. The second microswitch 301 and the third microswitch 302 are in telecommunication connection with the control host 10.

The scheme of telecommunication connection between the second microswitch 301 and the third microswitch 302 and the control host 10 is obtained according to common knowledge; when the door is opened, after the door 601 is pulled to a certain degree, the door 601 is in contact with the contact of the second microswitch 301, the second microswitch 301 detects that the door 601 is opened in place, a signal is sent to the control host 10, the control host 10 sends a control signal to stop the counterclockwise rotation of the driving motor 801, and the door is not opened any more; when the door 601 is closed tightly, the door 601 contacts with the contact of the third microswitch 302, the third microswitch 302 detects that the door 601 is closed in place, and sends a signal to the control host 10, the control host 10 sends a control signal to stop the driving mechanism 8, and the control host 10 can control the microwave oven to start heating operation, so as to avoid the situation that the driving motor 801 and the gear are damaged.

In this embodiment, the protection frame 3 is provided with two mounting seats 303 capable of being adjusted back and forth for positioning the second micro switch 301 and the third micro switch 302, the mounting seats 303 are "y" shaped plates, and the protection frame 3 is provided with an adjusting hole for mounting the "y" shaped plates. The second microswitch 301 and the third microswitch 302 are installed on the protective frame 3 through the installation seat 303, so that modular assembly is realized, and the installation efficiency is improved. The second microswitch 301 and the third microswitch 302 are arranged on the bottom surface of the top plate of the rectangular plate, so that the second microswitch 301 and the third microswitch 302 are prevented from colliding with external equipment to influence the detection precision.

The protective frame 3 comprises vertical plates which are positioned at the two ends of the protective frame and are adaptive to the two end surfaces of the heating box 6, and a transverse plate which is positioned at the top end of the protective frame and is adaptive to the top surface of the heating box 6, so that the heating box 6 is prevented from shifting; the second microswitch 301 is arranged on the vertical plate at the left end, and the third microswitch 302 is arranged on the horizontal plate.

The both ends of support frame 7 are equipped with the positioning seat 11 that suits with the both ends face of heating cabinet 6, and positioning seat 11 is tight with heating cabinet 6 top, prevents that heating cabinet 6 is not hard up, is equipped with the holding tank that the bottom at protective frame 3 both ends suited on positioning seat 11, and the bottom at protective frame 3 both ends is equipped with the turn-ups structure of being connected with positioning seat 11, and protective frame 3 passes turn-ups structure through the bolt and installs on positioning seat 11.

In this embodiment, the feeding mechanism 4 includes a feeding motor 401, a coil spring 402 and a positioning plate 403, the feeding motor 401 is installed on the positioning plate 403, the feeding motor 401 drives the coil spring 402 to rotate, a plurality of storage tanks 201 are arranged on the raw material bin 2, two coil springs 402 are arranged in each storage tank 201, a raw material bag is placed on the two coil springs 402, a supporting plate 202 is arranged on each storage tank 201, slots 203 for installing the positioning plate 403 are arranged on the supporting plate 202, and the positioning plate 403 is installed on the supporting plate 202 quickly, so that the installation is convenient.

In the present embodiment, the driving mechanism 8 includes a driving motor 801 provided on the supporting frame 7, a driving gear 802 connected to the driving motor 801, and a gear plate 803 provided on the outer side of the door 601 to engage with the driving gear 802. Through gear transmission, the control signal sent by the control host 10 can control the rotating speed of the driving motor 801, thereby preventing the over-high rotating speed of the box door 601 from causing great impact on the microwave oven and prolonging the service life of the popcorn machine. Moreover, the motor provides power, the number of turns of the control motor that can be accurate is more accurate for cylinder, hydraulic drive, and the structure is simpler moreover, relative and cylinder transmission, control more accurate, and the noise that produces moreover is little.

The driving motor 801 is vertically installed on the supporting frame 7, the supporting frame 7 is provided with a positioning groove 805 transversely extending, the driving motor 801 is installed on the supporting frame 7 in a positioning mode through a bolt structure, and the driving motor 801 is installed in a positioning mode so that the driving gear 802 on the driving motor 801 is meshed with the gear disc 803.

In this embodiment, the central line of the gear plate 803 coincides with the rotation central line of the door 601, the gear plate 803 is in a fan-shaped structure, and the radian of the fan-shaped structure is 90 °, so that the door 601 can rotate 90 °, and the opening amplitude is ensured; one end of the gear plate 803 is provided with a connecting seat 804 connected to the door 601. The connecting base 804 includes a positioning plate corresponding to the bottom surface of the door 601 and a connecting plate corresponding to the outer side surface of the door 601, and the connecting plate is perpendicular to the positioning plate to ensure that the gear plate 803 is coaxial with the door 601.

In this embodiment, a relief opening corresponding to the gear plate 803 is provided at the front side of the positioning seat 11 to prevent the gear plate 803 from interfering with the positioning seat 11 when rotating 90 °.

In this embodiment, a plurality of pairs of photoelectric sensors 901 arranged in a row are disposed on two sides of the delivery slide 9, the photoelectric sensors 901 are in telecommunication connection with the control host 10, the photoelectric sensors 901 are infrared correlation sensors, two side walls of the delivery slide 9 are provided with elongated slots 902 for probes of the photoelectric sensors 901 to pass through, the photoelectric sensors 901 are mounted on a mounting plate 903 in a row, and the mounting plate 903 is mounted on two sides of the delivery slide 9. The plurality of photoelectric sensors 901 detect whether the popcorn bag is scraped from the heating box 6 to the delivery slide 9 by the inclined scraper 602, and when the plurality of photoelectric sensors 901 detect that the raw material bag slides, a signal is sent to the control main unit 10, and the control main unit 10 will remind the customer to take the popcorn from the delivery bin 102 on the operation panel 12. The plurality of photoelectric sensors 901 detect the object, so that the control host 10 is prevented from being mistakenly judged due to interference of dust and tiny objects, and the failure rate is reduced.

In this embodiment, the signal output ends of the first microswitch 502, the second microswitch 301, the third microswitch 302 and the photoelectric sensor 901 are connected with the signal input end of the control main machine 10, and the signal output end of the control main machine 10 is connected with the driving motor 801, the feeding motor 401 and the heating box 6; an operation panel 12 which is in telecommunication connection with the control host 10 is arranged on the cabinet door 101. The cabinet door 101 is provided with an observation window corresponding to the raw material bin 2.

The driving motor 801 includes a stepping motor and a stepping driver using a controller of which the control host 10 includes signals VB1-24MT, and the signal of the stepping driver is YK2609 MA.

The control host 10 is connected with the driving motor 801 and the microwave oven in a telecommunication way, the output end of the control host 10 is connected with the driving motor 801 and the microwave oven 1, and the driving motor 801 is a stepping motor. The control host 10 comprises a PLC of model VB1-24MT, as shown in fig. 13, signal output interfaces Y1 and Y2 of the PLC are connected with a control port of the stepping motor driver YK2609MA, and signals output by signal output terminals Y1 and Y2 of the PLC can control the driving motor 801 to rotate forward or backward, so that the controlled box door 601 is closed or opened; then, the signal output ends of the second micro switch 301 and the third micro switch 302 input detection signals to the PLC, thereby controlling the driving motor 801 to stop.

The PLC is connected with the operation panel 12, data can be input on the operation panel 12, and the PLC outputs a signal through an output interface Y6 to enable a coil of the relay KA1 to be electrified or powered off so as to control the microwave oven to be started or stopped; the PLC outputs signals to coils of relays KA2 and KA3 of the feeding motors 401 through output interfaces Y4 and Y5 to be electrified or deenergized to control the feeding motors 401 to start or stop, and therefore the raw material bags are pushed to the blanking hopper 5.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. A novel corn popper comprises a machine cabinet (1), a machine door (101) and a control host (10), and is characterized in that a raw material bin (2) for placing raw material bags, a discharging hopper (5), a heating box (6) and a machine door (601) hinged to the front side of the heating box (6) are arranged in the machine cabinet (1), a feeding mechanism (4) for pushing the raw material bags to the discharging hopper (5) is arranged on the raw material bin (2), and an inclined scraper (602) capable of adapting to a discharging opening of the discharging hopper (5) is arranged on the inner side of the machine door (601); a supporting frame (7) for supporting the heating box (6) is arranged in the cabinet (1), and a driving mechanism (8) for driving the box door (601) to rotate is arranged on the supporting frame (7); a delivery slide (9) adapted to the box door (601) is arranged on the front side of the support frame (7), and a goods taking bin (102) adapted to the bottom end of the delivery slide (9) is arranged at the bottom of the box door (101); and an operation panel (12) in telecommunication connection with the control host (10) is arranged on the cabinet door (101).

2. The novel popcorn maker according to claim 1, wherein a distance corresponding to the thickness of the raw material bag is provided between the inclined scraper (602) and the bottom end of the heating box (6), and a material blocking block (603) is provided in the heating box (6).

3. The novel popcorn malcer according to claim 2, wherein the baffle block (603) is provided with a spring (604) extending forwards and a push plate (605) arranged at the front end of the spring (604).

4. The novel popcorn maker according to claim 1, 2 or 3, wherein a deceleration baffle (501) is hinged at the bottom end of the discharging funnel (5), and a first microswitch (502) adapted to the outer side surface of the deceleration baffle (501) is installed on the discharging funnel (5).

5. The novel popcorn maker according to claim 4, wherein a protective frame (3) is provided on the supporting frame (7) to surround the heating box (6), a second microswitch (301) is provided at one end of the protective frame (3) to be adapted to one end of the box door (601), and a third microswitch (302) is provided at the front side of the top of the protective frame (3) to be adapted to the other end of the box door (601).

6. The novel popcorn maker according to claim 5, wherein the feeding mechanism (4) comprises a feeding motor (401), a coil spring (402), a positioning plate (403), and a connecting plate (404), the raw material bin (2) is provided with a plurality of storage troughs (201), the storage troughs (201) are provided with a supporting plate (202), and the supporting plate (202) is provided with slots (203) for installing the positioning plate (403).

7. A novel corn popper as claimed in claim 5 or 6, wherein said driving mechanism (8) comprises a driving motor (801) arranged on the supporting frame (7), a driving gear (802) connected with the driving motor (801) and a gear plate (803) arranged on the outer side of the box door (601) and engaged with the driving gear (802).

8. A novel popcorn maker according to claim 7, wherein the driving motor (801) is vertically mounted on the supporting frame (7), a positioning groove (805) extending transversely is provided on the supporting frame (7), and the driving motor (801) is adjustably mounted on the supporting frame (7) by a bolt structure.

9. The novel popcorn maker according to claim 7, wherein a plurality of pairs of photoelectric sensors (901) arranged in rows are provided on both sides of the delivery slide (9), and elongated slots (902) for the probes of the photoelectric sensors (901) to pass through are provided on both side walls of the delivery slide (9).

10. A novel popcorn maker according to claim 9, wherein the signal output terminals of the first microswitch (502), the second microswitch (301), the third microswitch (302) and the photoelectric sensor (901) are connected with the signal input terminal of the control host (10), and the control host (10) is in telecommunication connection with the driving motor (801), the feeding motor (401) and the heating box (6).