CN210446781U

CN210446781U - Pancake machine

Info

Publication number: CN210446781U
Application number: CN201821159422.3U
Authority: CN
Inventors: 邵嘉阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-22
Filing date: 2018-07-22
Publication date: 2020-05-05
Anticipated expiration: 2028-07-22

Abstract

The utility model belongs to the technical field of catering equipment technique and specifically relates to a pancake machine is related to. The pancake machine comprises a protective cover which is covered on the pancake machine; the protective cover at least has an openable operation window, and a sealed dustproof space can be formed when the operation window is closed; the protective cover is connected with a suction pipeline which is used for discharging cooking gas generated when the pancake machine works. The pancake machine has a dustproof effect, and manufactured pancakes can reach qualified hygienic standards, so that food safety is effectively guaranteed.

Description

Pancake machine

Technical Field

The utility model belongs to the technical field of catering equipment technique and specifically relates to a pancake machine is related to.

Background

The pancake is a flavor snack made of coarse grain powder, and becomes a food which is very popular among people due to abundant ingredients and portability. Manually making battercake requires spreading the batter on a griddle for frying, a large amount of manpower and material resources are needed when spreading the batter, and the manual speed is too slow, so that the efficiency of making battercake is low. Some pancake machines on the market have simple and crude structures, are usually outdoor equipment, and cannot effectively guarantee food safety, and the sanitary standard of manufactured pancakes can not reach qualified sanitary standard, so that certain threat is brought to the health of people. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pancake machine to there is the poor technical problem of sanitary condition in the pancake that exists when solving among the prior art when the preparation.

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

the utility model provides a pancake machine, which comprises a protective cover used for covering the pancake machine; the protective cover at least has an openable operation window, and a sealed dustproof space can be formed when the operation window is closed; the protective cover is connected with a suction pipeline which is used for discharging cooking gas generated when the pancake machine works.

As a further technical solution, the pancake machine comprises: a purification device disposed on the suction line.

As a further technical solution, the pancake machine comprises: the heat exchange device is provided with a first channel and a second channel which are distributed in a winding and bending way; the first channel is connected with the suction pipeline; and a medium for utilizing waste heat is arranged in the second channel.

As a further technical solution, the second channel and the first channel are two independent heat exchange tubes, and the two independent heat exchange tubes are wound in parallel and distributed in a winding shape.

As a further technical solution, the second channel and the first channel are an integrated heat exchange tube, a central tube of the integrated heat exchange tube and an annular tube circumferentially arranged along the central tube, wherein either one of the central tube and the annular tube forms the first channel, and the other forms the second channel.

The pancake machine comprises: the automatic blanking device, the rotary heating device and the automatic scraper device;

the automatic blanking device is used for throwing slurry into the rotary heating device;

the automatic scraper device is used for uniformly flattening the slurry on the rotary heating device.

As a further technical solution, the automatic blanking device comprises: a blanking funnel and an air pump assembly;

the air pump assembly is communicated with the blanking funnel;

and the discharge hole of the blanking funnel is positioned above the rotary heating device.

As a further aspect, the rotary heating apparatus includes: the device comprises a griddle plate, a rotary driving mechanism and a heating cover;

the griddle plate is arranged on the rotary driving mechanism;

the heating cover is movably arranged above the griddle plate and is matched with the griddle plate to realize double-sided heating.

As a further technical solution, the automatic scraper device includes: a spreading scraper and a lifting driving mechanism;

the spreading scraper is positioned above the griddle plate;

the lifting driving mechanism is used for driving the material spreading scraper to move up and down above the griddle plate.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model provides a pancake machine, this pancake machine can form sealed dustproof space when the operating window is closed to the accessible suction pipeline discharges the cooking gas that pancake machine during operation produced. The pancake machine has a dustproof effect, and manufactured pancakes can reach qualified hygienic standards, so that food safety is effectively guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pancake machine provided in embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a pancake machine provided in embodiment 1 of the present invention;

fig. 3 is a cross-sectional view of a pancake machine provided in embodiment 2 of the present invention;

fig. 4 is a sectional view of the pancake machine after the ejector rod is jacked up in embodiment 2 of the present invention;

figure 5 is a top view of a griddle plate according to example 2 of the present invention;

fig. 6 is a partial cross-sectional view of a griddle plate and a top rod provided in embodiment 2 of the present invention;

fig. 7 is a schematic structural view of a push rod in embodiment 3 of the present invention;

figure 8 is a top view of a griddle plate according to embodiment 3 of the present invention;

fig. 9 is a partial schematic view of a griddle plate provided with a pulp outlet bar in embodiment 4 of the present invention;

figure 10 is a longitudinal sectional view of a griddle plate according to an embodiment of the present invention 5;

fig. 11 is a diagram AA in fig. 10.

Icon: 1-a protective cover; 2-a blanking funnel; 3-an air pump assembly; 4-a lifting driving mechanism; 5-spreading a material scraper; 7-a griddle plate; 9-a heating source; 10-a rotary drive mechanism; 12-a heat exchange means; 13-a purification device; 16-a suction line; 17-heating cover;

20 a-a base; 20-a griddle plate; 21-a first shaft hole; 22-a release coating; 23-second shaft hole; 25-an annular baffle; 30-a top rod; 31-a first bracket; 30 a-an extension; 32-a release coating; 33-air blowing holes; 34-a gas channel; 40-a guide post; 50-a pulp outlet rod; 51-slurry outlet holes; 52-slurry channel; 60-cake body; 70-air outlet part; 71-hot air ports; 72-gas path; 80-air flow path; 81-preheating circuit; 82-an annular air chamber; 83-an air inlet; 84-a fan arrangement; 85-air supply pipeline; 90-heating source.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Example 1

Referring to fig. 1 to 2, the present embodiment provides a pancake machine, which includes a protective cover 1 for covering the pancake machine; the protective cover 1 at least has an openable operating window, and the protective cover 1 can form a sealed dustproof space when the operating window is closed; a suction line 16 is connected to the hood 1, said suction line 16 being used to evacuate the cooking gases generated during the operation of the pancake machine. The pancake machine has a dustproof effect, and manufactured pancakes can reach qualified hygienic standards, so that food safety is effectively guaranteed.

In this embodiment, the operation window is used for taking the pancake, and the specific setting form is not limited, and the operation window can be flexibly set according to actual needs.

For example: the operating window and the protective cover 1 are connected by a mechanical slideway, similar to a glass window.

Another example is: the operation window and the protective cover 1 are in an electric push type, and are similar to automobile windows.

Further, the operation window may preferably be a transparent window.

In order to prevent the transparent window from atomizing, the inside heating plate that increases of transparent window to heat the transparent window body, thereby keep the inside and outside difference in temperature of transparent window at any time unanimous, and then prevent its atomizing.

In this embodiment, the pancake machine includes: a purification device 13, said purification device 13 being arranged on said suction line 16. It should be noted that the suction line 16 may be provided with a blower device or may be connected to a kitchen range hood.

In this embodiment, the pancake machine includes: a heat exchange device 12, wherein the heat exchange device 12 is provided with a first channel and a second channel which are distributed in a winding way; said first channel being connected to said suction line 16; and a medium for utilizing waste heat is arranged in the second channel. The heat exchange device can fully utilize the cooking hot gas in the suction pipeline 16 to realize heat exchange, and the specific application of the waste heat is not limited, such as: heating water, heating other media, etc.

In this embodiment, as a further technical solution, the second channel and the first channel are two independent heat exchange tubes, and the two independent heat exchange tubes are wound in parallel and distributed in a winding shape.

Or, the second channel and the first channel are an integrated heat exchange tube, a central tube of the integrated heat exchange tube and an annular tube circumferentially arranged along the central tube, wherein either one of the central tube and the annular tube forms the first channel, and the other forms the second channel.

In this embodiment, the pancake machine includes: the automatic cake discharging device comprises an automatic discharging device, a rotary heating device, an automatic scraper device and a cake lifting device;

Preferably, the automatic blanking device comprises: the blanking funnel 2 and the air pump component 3; the air pump assembly 3 is communicated with the blanking funnel 2; and the discharge hole of the blanking funnel 2 is positioned above the rotary heating device. Preferably, the blanking funnel 2 can be replaced by a shower head or other structures.

For example, the automatic discharging device can be a 3D printing discharging device comprising: the blanking machine comprises a blanking machine head, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and a controller; the blanking machine head is used for putting pancake slurry; the X-axis moving mechanism is connected with the blanking machine head and is used for driving the blanking machine head to move along the X-axis direction; the Y-axis moving mechanism is connected with the X-axis moving mechanism and is used for driving the X-axis moving mechanism and the blanking machine head to move together along the Y-axis direction; the Z-axis moving mechanism is connected with the Y-axis moving mechanism and used for driving the Y-axis moving mechanism, the X-axis moving mechanism and the blanking machine head to move along the Z-axis direction together, and the controller is in signal connection with the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism respectively.

Preferably, the rotary heating device includes: a griddle plate 7, a rotary driving mechanism 10 and a heating cover 17; the griddle plate 7 is arranged on the rotary driving mechanism 10, and the rotary driving mechanism 10 is used for driving the griddle plate 7 to rotate; the heating cover 17 is movably arranged above the griddle plate 7 and is matched with the griddle plate 7 to realize double-sided heating.

The rotary heating device may be replaced with an air heating device.

Specifically, the air heating device includes: the air supply system, the heating source 9, the griddle plate 7 and the air outlet part; the heating source 9 is arranged below the griddle plate 7; the air outlet part is arranged on the periphery of the griddle plate 7 and is provided with a plurality of hot air openings facing the griddle plate 7; the air supply system conveys hot air preheated by the heating source 9 to the air outlet part.

As a further aspect, the air supply system includes: the device comprises a fan device, an air supply pipeline and a preheating pipeline; the fan device is connected with the preheating pipeline through an air supply pipeline; the preheating pipeline comprises a first preheating section and a second preheating section, the extending path of the first preheating section passes through the heating area of the heating source 9, the second preheating section is connected with the first preheating section, and the second preheating section is connected with the air outlet part.

As a further technical solution, the air supply system further includes: a purification device 13 and a suction line 16; the purification device 13 is arranged on the suction pipeline 16 and/or the blast pipeline; an air inlet of the fan device is connected with the suction pipeline 16, and the suction pipeline 16 is connected with the protective cover 1 of the pancake machine; and the air outlet of the fan device is connected with the air supply pipeline, and the air supply pipeline is connected with the preheating pipeline.

As a further technical scheme, the air outlet part is arranged on the periphery of the griddle plate 7 through a movable connecting seat. As a further technical scheme, the movable connecting seat is a hinged seat; the air outlet part is hinged with the hinged support. As a further technical scheme, the movable connecting seat is a magnetic ball socket, and a magnetic coating is arranged on the inner surface of the magnetic ball socket; the air outlet part is connected with an arc-shaped arm, the tail end of the arc-shaped arm is provided with a metal ball head, and the metal ball head is matched with the magnetic ball socket.

Preferably, the automatic scraper device includes: a spreading scraper 5 and a lifting driving mechanism 4; the spreading scraper 5 is positioned above the griddle plate 7; the lifting driving mechanism 4 is used for driving the material spreading scraper 5 to move up and down above the griddle plate 7. The spreading scraper 5 is conveniently detached from the lifting driving mechanism 4, so that the cleaning and the maintenance of a user are facilitated, and the sanitation and the safety of the automatic pancake machine are ensured. For example: the lifting drive mechanism 4 may be any one of a cylinder, a screw drive, a cam mechanism, or the like.

In addition, the eggs, the chopped green onions and the dipping materials can be manually assisted or automatically operated. For example: the method comprises the following steps of placing egg liquid into an egg liquid feeding barrel after eggs are peeled, wherein the egg liquid feeding barrel can be in a nozzle type or a valve type and can be controlled by a controller quantitatively in real time. The egg liquid feeding barrel can be bound with an automatic blanking device for use and can also be used independently. Similarly, according to individual taste, its chopped green onion (caraway) and dip in material (chilli sauce, sweet fermented flour paste) also can set up alone and put in the box, can be equipped with the small opening in putting in box bottom, put in the box and be equipped with the shake device, of course, also can be provided with vegetable box etc..

Example 2

As shown in fig. 3 to 5, the griddle plate 20 in the pancake machine provided by this embodiment has different structural designs, and further includes: a push rod 30 and a push-up actuator;

the griddle plate 20 is provided with a plurality of first shaft holes 21;

the mandril 30 is telescopically and slidably arranged on the first shaft hole 21;

the jacking actuating mechanism is used for driving the mandril 30 to move up and down along the first shaft hole 21, so that the top of the mandril 30 extends out of the upper opening edge of the first shaft hole 21 or retracts into the first shaft hole 21; when the top of the top bar 30 extends out of the first shaft hole 21, the top of the top bar 30 protrudes out of the upper plate surface of the griddle plate 20, so that the cake 60 above the griddle plate 20 is forced to be separated from the griddle plate 20.

The present embodiment further includes a base 20a and a first bracket 31; the griddle plate 20 and the base 20a are arranged at intervals; the first bracket 31 is arranged between the griddle plate 20 and the base 20a, the distance between the first bracket 31 and the griddle plate 20 is adjustable, and the plurality of top bars 30 are arranged on the first bracket 31.

The first bracket 31 is arranged on the base 20a in a manner of moving up and down (i.e. approaching to or departing from the griddle plate 20), and the jacking actuating mechanism forces the mandril 30 to slide along the first shaft hole 21 through the first bracket 31.

The jack-up actuator includes a motor and a transmission mechanism (not shown). Wherein the motor in the jack-up actuator is connected with the first bracket 31 through a transmission mechanism. Wherein the transmission mechanism is preferably a screw transmission pair or a gear rack transmission pair or the like.

The first guide mechanism is used for movably guiding the first bracket; in the present embodiment, the guiding structure is a guiding column 40, and the first bracket 31 is provided with a guiding hole for guiding and matching with the guiding column 40. Of course, the guiding structure has many forms, for example, the guiding structure can also be a track with various forms arranged between the griddle plate 20 and the base, and the bracket can be arranged on the track in a way of sliding up and down; or the base is provided with a guide hole in sliding fit with the guide pin shaft.

As shown in figure 6, the griddle plate 20 has a release coating 22 applied to the surface of the plate. An anti-sticking coating 32 is provided on the top surface of the jack 30. The anti-sticking coating is uniformly covered on the griddle plate and the top bar, so that the adhesion of the flour slurry with the griddle plate 20 and the top bar 30 can be effectively prevented, and the cake can be prevented from being damaged when being separated. Release coatings are available in many forms, such as teflon release coatings, nano GN-205 high temperature non-stick coatings, release coatings made of ceramic materials, release coatings made of other food grade alloys, and the like.

Wherein the first shaft holes 21 are preferably uniformly arranged at equal intervals, as shown in fig. 5.

In addition, the embodiment further preferably comprises an elastic restoring element, the elastic restoring element is arranged between the first bracket and the griddle plate 20, and the self elasticity of the elastic restoring element tends to force the first bracket to be far away from the griddle plate 20 so as to enable the top end of the top bar 30 to retract into the first shaft hole 21. Wherein, preferably, the elastic reset piece is a compression coil spring, a rubber spring or a gas spring, etc.

The pancake body 60 supporting device is simple in structure, the pancake body 60 can be automatically supported through the ejector rods, the pancake body is separated from the griddle plate, and labor and time are greatly saved.

Example 3

The structure of the present embodiment is the same as that of embodiment 2, except that:

as shown in fig. 7, when the top of the top bar 30 extends out of the upper opening edge of the first shaft hole 21, the top bar 30 includes a protruding portion 30a extending out of the first shaft hole 21; the outer side surface of the extension part 30a is provided with a blowing hole 33, the inside of the mandril 30 is provided with a gas channel 34, and the blowing hole 33 is connected with a pressure gas source through the gas channel 34 and a gas pipeline. The gas pipeline is provided with a control switch and a controller for controlling the on-off of the gas. The control switch and controller are not described in detail herein for the prior art. Wherein the pressure air source preferably adopts a small-sized air pump.

After the top rod 30 is lifted, the extending part 30a lifts the cake, and simultaneously, the pressure air source blows air to the bottom of the cake through the air blowing hole 33, so that the cake is in a suspension or semi-suspension state, and the cake is forced to be completely separated from the griddle plate 20 by utilizing the air. Compared with the embodiment 1, the embodiment adopts the cooperative work of the gas and the ejector rod, the separation effect is better, the separation action is softer, the damage of the cake body can be effectively prevented, or the damage part of the cake body is further enlarged, and the integrity of the cake body is effectively maintained. Meanwhile, the pressure gas has a cooling effect, can quickly cool the cake body, and is convenient to take and eat.

In addition, as shown in figures 3 and 5, the griddle plate 20 is provided with an annular baffle 25 protruding upwards at the periphery of the upper plate surface. Wherein annular baffle can hinder gaseous smoothly from discharging from the cake body bottom, and then forms higher atmospheric pressure in the bottom of the cake body, and then improves the efficiency and the effect of cake body separation.

Example 4

This embodiment has the same structure as embodiment 3, except that:

as shown in figure 8, the griddle plate 20 is provided with a first shaft hole 21 and a second shaft hole 23 at the same time. As shown in fig. 9, the embodiment further comprises a pulp outlet rod 50 and a pulp outlet actuating mechanism, and the griddle plate 20 is provided with a plurality of second shaft holes 23; the pulp outlet rod 50 is telescopically and slidably arranged in the second shaft hole 23;

the slurry outlet actuating mechanism is used for driving the slurry outlet rod 50 to move up and down along the second shaft hole 23, so that the top of the slurry outlet rod 50 is forced to extend out of the upper opening edge of the first shaft hole 21 or retreat into the first shaft hole 21; when the top of the slurry outlet rod 50 extends out of the upper opening edge of the second shaft hole, the slurry outlet rod 50 comprises a protruding part extending out of the second shaft hole; the outer side surface of the protruding part is provided with a slurry outlet hole 51, a slurry channel 52 is arranged in the slurry outlet rod 50, and the slurry outlet hole is connected with slurry containers such as egg liquid and the like through the slurry channel 52, a pipeline and a liquid pump. And also comprises a control switch for controlling the ejection or stop of the slurry and a controller.

Wherein, the slurry outlet rod 50 is used for the cake body to be lifted by the top rod 30, the protruding part of the slurry outlet rod 50 extends out of the second shaft hole, and slurry is sprayed to the bottom of the cake body by the slurry outlet hole. Wherein the slurry includes but is not limited to a loose egg liquid or a batter of various legumes and grains. Then the slurry outlet rod 50 and the top rod 30 respectively return to the second shaft hole and the first shaft hole 21, and the slurry is heated and dried and then is adhered to the bottom of the cake body.

The arrangement of the slurry outlet rod 50 does not need to be turned over, and the egg layer can be directly paved at the bottom of the cake body, so that the processing efficiency is greatly improved. After the egg layer is spread, the ejector rod 30 is lifted again, the cake body adhered with the egg layer is lifted by the air blowing hole 33, and the cake body is cooled by air in the separation process.

In addition, the present embodiment may further include a second bracket; the second bracket is arranged between the griddle plate 20 and the base, the distance between the second bracket and the griddle plate 20 is adjustable, and the plurality of pulp outlet rods 50 are arranged on the second bracket. The second bracket is arranged on the base and can move up and down (i.e. close to or far away from the griddle plate 20), and the pulp outlet actuating mechanism forces the pulp outlet rod 50 to slide along the second shaft hole through the second bracket.

Wherein first bracket and second bracket can also integrative setting, go out the thick liquid pole setting promptly on first bracket, jack-up actuating mechanism and play thick liquid actuating mechanism are same set of device.

Example 5

as shown in fig. 10 and 11, this embodiment further comprises a heating source 90 for heating the plate 20.

Specifically, the heating source 90 is disposed against the bottom surface of the plate 20. The heating source is prior art, and optionally adopts ceramic heating plate.

This embodiment still includes: an air supply system and an air outlet portion 70; the air outlet part 70 is arranged on the peripheral edge of the griddle plate 20, and the air outlet part 70 is provided with a plurality of hot air openings 71 used for facing the top surface of the griddle plate 20;

the air channel 80 is arranged in the griddle plate 20 in a bent mode, the air supply system is connected with the air outlet part 70 through the air channel 80, and air conveyed by the air supply system is heated by the griddle plate 20 and then conveyed to the air outlet part 70 when passing through the air channel 80.

The air heated by the plate 20 is blown through the hot air vents 71 and is used for heating the upper surface of the cakes on the plate 20.

Wherein, air supply system includes: a blower device 84 and an air supply line 85; wherein the air flow passage 80 includes: the air-blowing device comprises a preheating pipeline 81 coiled inside the griddle plate 20 and an annular air cavity 82 arranged inside the periphery of the griddle plate 20, wherein an air channel 72 is arranged in an air-blowing part 70, a plurality of hot air openings 71 are arranged on one side of the air-blowing part 70 facing the top surface of the griddle plate 20, and the annular air cavity 82 is communicated with the hot air openings 71 through the air channel 72. The inlet 83 of the preheating line 81 is connected to a fan arrangement 84 via a supply line 85.

The griddle plate 20 can heat the two sides of the cake simultaneously by combining the air outlet part 70 without turning over, thereby greatly improving the processing efficiency of the cake.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A pancake machine, comprising: the protective cover is used for covering the pancake machine; the protective cover at least has an openable operation window, and a sealed dustproof space can be formed when the operation window is closed; the protective cover is connected with a suction pipeline which is used for discharging cooking gas generated when the pancake machine works.

2. The pancake machine of claim 1, comprising: a purification device disposed on the suction line.

3. The pancake machine of claim 1, comprising: the heat exchange device is provided with a first channel and a second channel which are distributed in a winding and bending way; the first channel is connected with the suction pipeline; and a medium for utilizing waste heat is arranged in the second channel.

4. The battercake maker of claim 3, wherein the second channel and the first channel are two independent heat exchange tubes that are wound side-by-side and distributed in a serpentine shape.

5. The battercake maker of claim 3, wherein the second channel and the first channel are one integrated heat exchange tube having a central tube and an annular tube circumferentially disposed along the central tube, wherein either of the central tube and the annular tube forms the first channel and the other forms the second channel.

6. The pancake machine according to any one of claims 1-5 comprising: the automatic blanking device, the rotary heating device and the automatic scraper device;

7. The pancake machine of claim 6 wherein the automatic blanking device comprises: a blanking funnel and an air pump assembly;

the air pump assembly is communicated with the blanking funnel;

8. The pancake machine of claim 6 wherein the rotary heating device comprises: the device comprises a griddle plate, a rotary driving mechanism and a heating cover;

the griddle plate is arranged on the rotary driving mechanism;

9. The pancake machine of claim 8 wherein the automatic scraper assembly comprises: a spreading scraper and a lifting driving mechanism;

the spreading scraper is positioned above the griddle plate;