Discharge port structure of popcorn subpackaging equipment with directional heating function

Abstract

The utility model provides a popcorn sub-packaging equipment discharge port structure with a directional heating function, which relates to the field of food heat preservation, and comprises two fixing frames, an electric cylinder, a special-shaped flashboard, a mounting frame and a valve body, the two fixing frames are oppositely arranged in parallel along the horizontal direction, the upper and lower surfaces of the two fixing frames are respectively fixed with the electric cylinder, and the special-shaped flashboard is arranged on the mounting frame. The end of a piston rod of the electric air cylinder is fixed to the special-shaped gate plate, and the installation frame is arranged on the horizontal plane parallel to the fixing frame. Through the cooperation of the above structures, the popcorn dryer has the following beneficial effects: 1, heat can be directionally concentrated, and the temperature range of the inner wall of the discharge port can be accurately controlled, so that the sugar of popcorn is uniformly heated and is not burnt; meanwhile, the hydrophobic characteristic of the heat preservation layer can effectively avoid short circuit caused by water vapor invasion and fire risks caused by high-temperature sugar carbonization; and secondly, the insulating layer is detachable, so that the insulating layer is convenient for workers to maintain and does not need to be frequently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to food heat preservation field especially is involved in a kind of discharge port structure of directional heating function's popcorn subpackaging equipment. BACKGROUND

[0002] In the popcorn food processing field, when the existing equipment needs to be sold by subpackaging after popcorn is inflated by high temperature, popcorn is usually directly dropped from the hopper or transported to the packaging container through simple pipeline, without heating treatment to the discharge port, so that its surface temperature drops rapidly, resulting in hard taste and loss of aroma.

[0003] Some equipment attempts to set heating device at discharge port to maintain popcorn temperature, but there are the following problems:

[0004] Firstly, some equipment uses external heating pipe or metal resistance wire to wrap discharge port, which can cause local temperature of inner wall of discharge port to be too high, popcorn to be unevenly heated, outer layer to quickly dissipate heat, and large temperature difference between inside and outside, popcorn to be easily burnt or flavor to be lost;

[0005] Secondly, although the heating plate made of conventional graphene has the advantages of fast response and flexibility, its double-sided heating feature can cause waste of heat on the outer layer, and cannot concentrate heat to the inner wall side, resulting in high energy consumption;

[0006] And the double-sided heating material made of graphene is wrapped with heat insulation material on the outside, and the existing heat insulation material has poor temperature resistance, such as ordinary silica gel and leather, which is difficult to work stably in high temperature environment for a long time, cannot effectively insulate heat on the outer layer, causes the surface temperature of the equipment to be too high, and the heat insulation effect is insufficient, if ceramic fiber is used, its thickness needs to reach 3cm to achieve equivalent heat insulation effect, which seriously affects the lightweight of the equipment. SUMMARY

[0007] In view of the above problems of the prior art, the utility model solves the technical problem to provide a discharge port structure of popcorn subpackaging equipment with directional heating function, which can realize uniform heating of popcorn, energy-saving and safe operation, convenient maintenance, and prolong the service life of the equipment by directional precise temperature control and detachable hydrophobic insulation layer design.

[0008] To solve the above technical problems, the utility model adopts the technical scheme that provides a discharge port structure of popcorn sub-packaging equipment with directional heating function, which comprises two fixing frames, an electric cylinder, a special-shaped gate plate, a mounting frame and a valve body, the two fixing frames are arranged in parallel along the horizontal direction, the upper and lower surfaces of the two fixing frames are fixed with the electric cylinder respectively, the end of the piston rod of the electric cylinder is fixed with the special-shaped gate plate, the mounting frame is arranged on the horizontal plane parallel to the fixing frame, the special-shaped gate plate is matched with the inner wall of the valve body, and the valve body is characterized in that the valve body is two and is arranged in mirror image, and a directional heat preservation part for keeping the temperature of the material is arranged between the opposite sides of the two valve bodies.

[0009] In the preferred scheme, the two valve bodies are an upper valve and a lower valve respectively, the lower valve is fixed with one side of the mounting frame, the upper valve is provided with a hopper box on one side, the valve body is in a hollow rectangular structure, a valve cavity forming a horizontal passage is formed in the valve body, and the special-shaped gate plate is slidingly arranged in the valve cavity.

[0010] A circular through hole penetrating along the axis direction of the directional heat preservation part is formed between the opposite sides of the two valve bodies, and a material passage is formed.

[0011] In the preferred scheme, the cross section of the special-shaped gate plate is Z-shaped, and the long side of the special-shaped gate plate is slidingly attached to the valve cavity of the valve body.

[0012] In the preferred scheme, the directional heat preservation part is a composite layered structure, and the directional heat preservation part comprises an inner lining pipe, a heating layer and a heat insulation layer from inside to outside in sequence.

[0013] The heat insulation layer is a multi-layer composite structure.

[0014] In the preferred scheme, a split type fixing part detachably fastened to the directional heat preservation part is further arranged, the number of the split type fixing parts is multiple, the split type fixing parts are distributed along the axial direction of the directional heat preservation part, and the split type fixing parts form radial clamping of the directional heat preservation part.

[0015] In the preferred scheme, the heating layer is a double-sided flexible graphene film, the heating layer has a conductive surface and a heat insulation surface, one side facing the inner lining pipe is the conductive surface, and one side facing the heat insulation layer is the heat insulation surface.

[0016] The conductive surface of the heating layer is bonded to the outer wall of the inner lining pipe through high-temperature resistant conductive adhesive.

[0017] The conductive surface of the heating layer is coated with a copper foil electrode or a silver paste electrode.

[0018] In the preferred scheme, the conductive surface of the heating layer is coated with a copper foil electrode, the copper foil electrode is in a grid shape or a snake shape, the copper foil electrode is located between the contact surface of the heating layer and the inner lining pipe, and the end of the copper foil electrode is connected with a copper foil lead wire to form a conductive path.

[0019] In the preferred scheme, the silver paste electrode array is coated on the conductive surface of the heating layer, and the silver paste electrode array is in a serpentine distribution, the silver paste electrode array is located between the heating layer and the inner lining pipe, and the copper foil lead is connected to the end of the silver paste electrode array to form a conductive path.

[0020] In the preferred scheme, the thermal insulation layer is composed of a nanosilica aerogel thermal insulation felt, a carbon fiber felt layer and a ceramic glass fiber cotton layer from inside to outside, and the thermal insulation layer is tightly covered on the outer side of the heating layer in a detachable manner.

[0021] In the preferred scheme, the thermal insulation layer is composed of a nanosilica aerogel thermal insulation felt, a carbon fiber felt layer and a ceramic glass fiber cotton layer from inside to outside, and the thermal insulation layer is tightly covered on the outer side of the heating layer in a detachable manner.

[0022] An aluminum foil reflection layer is further coated on the outer wall of the thermal insulation layer.

[0023] The utility model provides a kind of discharge port structure of directional heating function's popcorn subpackaging equipment, by the cooperation between above-mentioned structure, by the cooperation between above-mentioned structure, compared with prior art, with following beneficial effects:

[0024] First, directional concentrated heat can be obtained, the temperature range of discharge port inner wall is accurately controlled, so that popcorn sugar is evenly heated and no burnt, flavor is significantly improved;At the same time, energy saving and operation safety are combined, the hydrophobic property of heat preservation layer can effectively avoid the circuit short circuit caused by water vapor invasion and the fire risk caused by high-temperature sugar carbonization;

[0025] Second, the heat preservation layer is designed as detachable, which is convenient for maintenance and does not need to be replaced frequently, ensures flavor stability and prolongs equipment service life. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further described below in combination with drawings and examples:

[0027] Figure 1 It is the front view structure diagram of the utility model;

[0028] Figure 2 It is the front view structure diagram of the utility model Figure 1 A part of the utility model is the local enlarged view;

[0029] Figure 3 It is the cross section schematic view of valve body and special-shaped gate in the utility model Figure 2

[0030] It is the cross section schematic view of valve body and special-shaped gate in the utility model Figure 4 Figure 1 It is the cross section schematic view of valve body and special-shaped gate in the utility model

[0031] Figure 5 ​This is a structural diagram of the first embodiment of the split-type fastener in Embodiment 3 of this utility model;

[0032] Figure 6 This is a structural diagram of the second embodiment of the split-type fastener in Embodiment 3 of this utility model.

[0033] In the diagram: 1. Fixing frame; 2. Electric cylinder; 3. Irregular gate; 4. Mounting frame; 5. Valve body; 6. Oriented insulation part; 61. Inner lining tube; 62. Heating layer; 63. Heat insulation layer; 7. Hopper box; 8. Split-type fixing component. Detailed Implementation

[0034] To better understand the purpose, structure, and function of this utility model, the embodiments and features described herein can be combined with each other without conflict. The utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Example 1

[0036] like Figures 1-6 As shown in the figure, this embodiment illustrates the outlet structure of a popcorn dispensing device with directional heating function, including two fixed frames 1, an electric cylinder 2, a shaped gate 3, a mounting frame 4, and a valve body 5. The two fixed frames 1 are arranged parallel to each other in the horizontal direction, and the upper and lower surfaces of the two fixed frames 1 are respectively fixedly connected to the electric cylinder 2 by bolts. The piston rod end of the electric cylinder 2 is fixed to the shaped gate 3 by bolts, and its piston rod drives the shaped gate 3 to move in the horizontal direction. The mounting frame 4 is set on a horizontal plane parallel to the fixed frames 1. The shaped gate 3 cooperates with the inner wall of the valve body 5. The characteristic is that there are two valve bodies 5 arranged in a mirror image, and a directional heat preservation part 6 is provided between the opposite sides of the two valve bodies 5 to maintain a specific temperature of the material to prevent burning or loss of flavor.

[0037] The materials are puffed foods, nuts, or crispy foods that need to be kept at a specific temperature during the discharge process to prevent burning or loss of flavor. The materials are not limited to popcorn, but can also be one or more of puffed rice flakes, chopped nuts, or sugar-coated crispy biscuits.

[0038] Furthermore, such as Figure 1 , 2As shown, the two valve bodies 5 are respectively upper valve and lower valve, which are integrally formed by stainless steel, the lower valve is fixed to one side of the mounting frame 4 by bolts, and the upper valve is fixed to one side by a flange The hopper box 7 is fixed to one side of the upper valve, the valve body 5 is a hollow rectangular structure, and the inside of the valve body 5 forms a horizontal passage valve cavity, the special-shaped gate plate 3 is slidingly arranged in the valve cavity, and the width of the special-shaped gate plate 3 is adapted to the width of the horizontal passage of the valve cavity, which provides space for the horizontal movement of the special-shaped gate plate 3, and a circular through hole is formed between the opposite sides of the two valve bodies 5, which is in communication with the axis direction of the directional heat preservation part 6, which is in communication with the hopper box 7, so as to form a material passage, which ensures that the material falls smoothly into the directional heat preservation part 6 in the open state, and at the same time, the directional heat preservation part 6 is powered on, which can continuously heat the inner wall of the directional heat preservation part 6, maintain the temperature of the material, and avoid the loss of flavor.

[0039] Among them, the valve cavity is the movement guide rail of the special-shaped gate plate 3, the width of the rectangular section is 50mm to 60mm, the height is 25mm to 30mm, and the thickness of the special-shaped gate plate 3 is 20mm to 25mm, so as to ensure the stability of the special-shaped gate plate 3 translation, and also avoid material card block.

[0040] In this embodiment, as shown in Figure 3 The cross section of the special-shaped gate plate 3 is Z-shaped, and the long side of the special-shaped gate plate 3 is slidingly attached to the valve cavity of the valve body 5.

[0041] In implementation, the special-shaped gate plate 3 is controlled to be conducted or cut off in the valve cavity of the valve body 5 through the reciprocating motion of the electric cylinder 2. In the open state, the piston rod of the electric cylinder 2 is retracted, which drives the special-shaped gate plate 3 to move away from the circular through hole, and the circular through hole of the upper valve is in communication with the hopper box 7, forming a material passage, so that the material falls into the directional heat preservation part 6 from the hopper box 7 without obstacles; in the closed state, the piston rod of the electric cylinder 2 is extended, which drives the special-shaped gate plate 3 to move and completely cover the circular through hole, so as to block the material from falling.

[0042] Further, as shown in Figure 4 , 5 The directional heat preservation part 6 is a composite layered structure, and the directional heat preservation part 6 is composed of an inner lining pipe 61, a heating layer 62 and a heat insulation layer 63 from inside to outside;

[0043] Further, the heat insulation layer 63 is a multi-layer composite structure.

[0044] Among them, the inner lining pipe 61 is the main body of the material passage, which is used for temporarily storing materials, and the inner lining pipe 61 is a stainless steel inner tube, which is used for directional heating of materials by the heating layer 62, and the temperature is controlled within a suitable range, and in order to ensure low energy consumption and block heat transmission, the heat insulation layer 63 is arranged outside the heating layer 62;

[0045] In this embodiment, an intelligent temperature control system is also provided, which comprises a distributed optical fiber temperature sensor and a microcontroller. The distributed optical fiber temperature sensor is in electrical signal connection with the microcontroller. The temperature of the inner lining pipe 61 is collected, and the heating power of the heating layer 62 is dynamically adjusted through a PID control algorithm. If an abnormal working condition occurs, a reverse pulse protection is triggered, and the power supply can be cut off within 3 ms.

[0046] Specifically, the distributed optical fiber temperature sensor adopts a spiral winding method to wind the high-temperature-resistant optical fiber on the outer wall of the inner lining pipe 61 with a 5mm pitch. The total length covers the entire section of the inner lining pipe 61. The distributed optical fiber temperature sensor is connected with the signal conditioning module of the microcontroller.

[0047] In implementation, the heating layer 62 is powered to generate radial Joule heat through the heating layer 62, so as to maintain the surface temperature of the material and prevent heat loss of the material. At the same time, the distributed optical fiber temperature sensor collects the axial temperature distribution of the inner lining pipe 61 in real time, and outputs data to the microcontroller once every certain time. The microcontroller outputs a PWM signal through a PID algorithm to dynamically adjust the power of the heating layer 62 and maintain the temperature stable. When over-temperature, short circuit or disconnection is detected, the microcontroller immediately cuts off the power supply and records the fault time and peak temperature.

[0048] A split type fixing piece 8 is also provided, which is detachably fastened to the directional heat preservation part 6. The number of the split type fixing piece 8 is multiple, and the split type fixing piece 8 is installed along the axial direction of the directional heat preservation part 6 to form radial clamping of the directional heat preservation part 6. The split type fixing piece 8 not only meets the mechanical strength requirement of the heat preservation part, but also improves the maintenance convenience through the detachable design.

[0049] In implementation, the split type fixing piece 8 is interference-fitted with the directional heat preservation part 6 in a specific way, so as to ensure that there is no relative displacement between the layers under vibration conditions.

[0050] In this embodiment, the heating layer 62 is a double-sided flexible graphene film. The heating layer 62 has a conductive surface and a heat insulation surface. The surface facing the inner lining pipe 61 is the conductive surface, and the surface facing the heat insulation layer 63 is the heat insulation surface.

[0051] The double-sided flexible graphene film has high carrier mobility and can quickly generate heat when powered on. The thickness of the double-sided flexible graphene film is 0.2mm to 0.3mm, which has a certain bendability and can tightly fit the outer wall of the inner lining pipe 61 to achieve efficient heat transfer.

[0052] It should be noted that the conductive surface of the heating layer 62 is bonded to the outer wall of the inner lining pipe 61 through high-temperature-resistant conductive adhesive.

[0053] Further, the conductive surface of the heating layer 62 is coated with a copper foil electrode in a grid or serpentine pattern between the heating layer 62 and the inner liner tube 61, forming a conductive path, and the conductive surface of the heating layer 62 is connected to an external power source through the copper foil lead, and after power-on, the current is uniformly distributed along the copper foil electrode, so that the heating layer 62 generates planar Joule heat, and the heat is conducted to the material passage through the inner liner tube 61 to maintain the specific temperature of the material.

[0054] In this embodiment, the thermal insulation layer 63 is composed of a nanosilica aerogel thermal insulation felt and a carbon fiber felt from inside to outside, and the thermal insulation layer 63 tightly covers the outside of the heating layer 62 in a detachable manner, which can block heat leakage.

[0055] The nanosilica aerogel thermal insulation felt and the carbon fiber felt are laminated and compounded by a high-temperature-resistant silicone adhesive, and the thermal insulation layer 63 is sewn into a cylindrical sleeve in the circumferential direction, and the sewing thread is a polytetrafluoroethylene-coated glass fiber thread.

[0056] Further, the inner diameter of the thermal insulation layer 63 is in interference fit with the outer diameter of the heating layer 62, and the outside of the two ends of the thermal insulation layer 63 is fastened by a split fixing part 8.

[0057] Specifically, the nanosilica aerogel thermal insulation felt has an extremely low thermal conductivity and is a highly efficient thermal insulation material, and has a nanoscale porous structure inside, which can effectively prevent heat conduction, heat convection and heat radiation, thereby achieving good thermal insulation effect; and the carbon fiber felt has high strength and flexibility, which can enhance the overall structural stability and durability of the thermal insulation layer 63.

[0058] In implementation, after heat is generated on the conductive surface of the heating layer 62, the heat will spread around, and since the thermal insulation layer 63 has a low thermal conductivity, it can effectively prevent heat transfer to the thermal insulation layer 63, so that the heat is mainly conducted to the material through the inner liner tube 61 to achieve the purpose of directional heating.

[0059] Embodiment 2:

[0060] In the preferred scheme, this embodiment shows the second implementation based on the first embodiment, and the main difference between the heating layer 62 and the thermal insulation layer 63 in this embodiment and the heating layer 62 and the thermal insulation layer 63 in the first embodiment is that:

[0061] In this embodiment, the conductive surface of the heating layer 62 is coated with a silver paste electrode array, and the silver paste electrode array is in a serpentine pattern between the heating layer 62 and the inner liner tube 61, and the end of the silver paste electrode array is connected to a copper foil lead to form a conductive path, and the conductive surface of the heating layer 62 is connected to an external power source through the copper foil lead, and after power-on, the current is uniformly distributed along the silver paste electrode array, so that the heating layer 62 generates planar Joule heat, and the heat is conducted to the material passage through the inner liner tube 61 to maintain the specific temperature of the material.

[0062] wherein the silver paste electrode array is high silver content and sintered silver paste.

[0063] In this embodiment, the thermal insulation layer 63 is composed of, from the inside to the outside, a nanometer silica aerogel thermal insulation felt, a carbon fiber felt layer, and a ceramic glass fiber cotton layer.

[0064] The carbon fiber felt layer is woven from carbon fibers and is used for mechanical support and heat radiation suppression. The ceramic glass fiber cotton layer is formed by sintering ceramicized glass fibers at high temperature and can further block heat loss by conduction and radiation. The nanometer silica aerogel felt and the carbon fiber felt layer are bonded by a silicone adhesive, including room temperature curing silicone. The carbon fiber felt layer and the ceramic glass fiber cotton layer are fixed by a high-temperature resistant adhesive, including ceramic glue.

[0065] Further, the outer wall of the thermal insulation layer 63 is coated with an aluminum foil reflective layer, with an infrared reflectivity of ≥92%, and the reflection direction is the infrared radiation directed towards the inside of the thermal insulation layer 63.

[0066] The aluminum foil is uniformly coated on the outer surface of the ceramic glass fiber cotton layer to form a continuous reflective layer.

[0067] In specific implementation, when the heating layer 62 generates heat, the heat is first transferred to the nanometer silica aerogel thermal insulation felt. The nanometer porous structure of the nanometer silica aerogel thermal insulation felt limits the thermal motion of air molecules, reducing the heat conduction rate. At the same time, the porous structure also suppresses the convection of air, reducing convective heat transfer. Part of the heat radiation is absorbed and scattered inside the aerogel. Then, the carbon fiber felt layer further assists in blocking heat and enhances structural stability. When the heat is transferred to the ceramic glass fiber cotton layer, the ceramic glass fiber cotton layer continues to block heat transfer due to its own thermal insulation performance. Finally, when the heat reaches the aluminum foil reflective layer, since the infrared reflectivity of the aluminum foil reflective layer is ≥92%, most of the outwardly radiated heat is reflected back into the thermal insulation layer, thereby achieving high-efficiency thermal insulation effect.

[0068] Embodiment 3:

[0069] In the preferred scheme as shown in Figure 5 , 6 In this embodiment, based on the third embodiment shown in Embodiment 1, the main difference between the split fixing member 8 in this embodiment and the split fixing member 8 in Embodiment 1 is that:

[0070] In this embodiment, as shown in Figure 5As shown, the split fixing member 8 is connected with the heat insulation layer 63 by split clamps, so that the heat insulation layer 63 is fastened with the inner liner pipe 61 through the heating layer 62, forming a stable overall structure, which can prevent the heat insulation layer 63 and the heating layer 62 from displacement or loosening during the operation of the device, and ensure the normal realization of the heating and heat insulation functions.

[0071] The split fixing member 8 is composed of two semicircular rings, a sealing gasket and a bolt set, and the inner wall of the semicircular ring is provided with anti-skid teeth.

[0072] Specifically, the heat insulation layer 63 is wrapped outside the heating layer 62, and the heating layer 62 is tightly bonded to the outer wall of the inner liner pipe 61. The two semicircular rings of the split fixing member 8 wrap the heat insulation layer 63 from both sides, and the anti-skid teeth of the semicircular ring are in close contact with the outer wall of the heat insulation layer 63. The two semicircular rings are fastened together by the bolt set. During the fastening process, the sealing gasket is compressed between the semicircular ring and the heat insulation layer 63, playing a sealing and buffering role, preventing external dust, water vapor and the like from entering between the heat insulation layer 63 and the heating layer 62, and also avoiding damage to the heat insulation layer 63 caused by the clamps. The split fixing member 8 fastens the heat insulation layer 63 to the inner liner pipe 61 through the heating layer 62.

[0073] In implementation, first, the sealing gasket is placed on the inner side of the semicircular ring, then the two semicircular rings wrap the heat insulation layer 63 from both sides, so that the anti-skid teeth are in full contact with the outer wall of the heat insulation layer 63. Then, the bolt set is used to pass through the corresponding mounting holes on the semicircular ring, and the bolt is tightened. As the bolt is tightened, the semicircular rings gradually approach each other, and the sealing gasket is compressed. At the same time, the semicircular ring exerts pressure on the heat insulation layer 63 through the anti-skid teeth, tightly fixing the heat insulation layer 63 and the heating layer 62 to the inner liner pipe 61. When disassembly is required, the bolt set is loosened, and the two semicircular rings can be separated, so that the heat insulation layer 63 and the heating layer 62 can be conveniently operated.

[0074] In this embodiment, as shown in the drawings, Figure 6 The split fixing member 8 is connected with the heat insulation layer 63 by magic tape fasteners or magnetic fasteners, so that the heat insulation layer 63 is fastened with the inner liner pipe 61 through the heating layer 62.

[0075] If the magic tape fasteners are used, they include two parts of a hook surface and a loop surface.

[0076] If the magnetic fasteners are used, they are composed of mutually attractive magnets. These components have good durability and connection strength, and can meet the long-term use requirements.

[0077] The heat insulation layer 63 is preformed into an arc-shaped heat preservation sleeve matching the inner liner pipe 61, with an embedded groove reserved on the inner side, which is quickly installed / dismounted by magic tape fasteners or magnetic fasteners, facilitating subsequent maintenance work.

[0078] Specifically, when the Velcro is used, the hook surface of the Velcro is fixed on the outer side of the arc-shaped heat preservation sleeve of the heat insulation layer 63, and the loop surface is fixed on the component at the position corresponding to the heat insulation layer 63, and the connection is realized by the combination of the loop surface and the hook surface.

[0079] When the magnetic buckle is used, one part of the magnet of the magnetic buckle is installed on the outer side of the arc-shaped heat preservation sleeve of the heat insulation layer 63, and the other part is installed at the position corresponding to the heat insulation layer 63, and the connection is realized by the attraction between the magnets, and meanwhile, the embedded groove on the inner side of the heat insulation layer 63 can further position and stably connect, so as to prevent the heat insulation layer 63 from being displaced.

[0080] In the specific implementation, when the heat insulation layer 63 is installed, the operator first aligns the arc-shaped heat preservation sleeve of the heat insulation layer 63 with the inner liner pipe 61 and the heating layer 62, and aligns the embedded groove on the inner side with the corresponding position, and if the Velcro is used, the loop surface and the hook surface of the Velcro are combined by force to ensure that they are in full contact, so as to generate sufficient adhesion, and if the magnetic buckle is used, the magnets are close to each other, and the heat insulation layer 63 is fixed in the correct position by the attraction between the magnets, and in the combination process, the embedded groove can play an auxiliary positioning role, so as to ensure the accuracy and stability of the installation of the heat insulation layer 63.

[0081] When the heat insulation layer 63 needs to be disassembled, if the Velcro is used, the operator only needs to pull apart the loop surface and the hook surface by force, and if the magnetic buckle is used, the heat insulation layer 63 is taken down from the fixed position by overcoming the attraction between the magnets by applying external force, and the whole disassembly process is simple and fast, and will not cause damage to the heat insulation layer 63 and other components.

[0082] In order for those skilled in the art to better understand the scheme of the present application, the above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation on the present application, and the protection scope of the present application should be the technical solutions recited in the claims, including the equivalent replacement solutions of the technical features recited in the claims as the protection scope. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

[0083] It should be further pointed out that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented.

Claims

1. A popcorn dispensing equipment outlet structure with directional heating function, comprising two fixed frames (1), an electric cylinder (2), a special-shaped gate plate (3), a mounting frame (4) and a valve body (5), the two fixed frames (1) are arranged in parallel along the horizontal direction, and the two fixed frames (1) are fixed with the electric cylinder (2) on the upper and lower surfaces respectively, the end of the piston rod of the electric cylinder (2) is fixed with the special-shaped gate plate (3), the mounting frame (4) is arranged on the horizontal plane parallel to the fixed frame (1), and the special-shaped gate plate (3) is matched with the inner wall of the valve body (5), characterized in that, The valve body (5) is two and is mirror image relative to each other, and a directional heat preservation part (6) for keeping the material at a specific temperature is arranged between the opposite sides of the two valve bodies (5).

2. The discharge port structure of the popcorn dispensing apparatus having a directional heating function according to claim 1, wherein, The two valve bodies (5) are respectively upper and lower valves, the lower valve is fixed to one side of the mounting frame (4), one side of the upper valve is provided with a hopper box (7), the valve body (5) is a hollow rectangular structure, and a valve cavity forming a horizontal passage is formed in the valve body (5), and the special-shaped gate plate (3) is slidingly arranged in the valve cavity. Circular through holes are respectively arranged between the opposite sides of the two valve bodies (5) and penetrate along the axis direction of the directional heat preservation part (6), forming a material passage.

3. The popcorn dispensing apparatus according to claim 2, wherein, The cross section of the special-shaped gate plate (3) is Z-shaped, and the long side of the special-shaped gate plate (3) is slidingly attached to the valve cavity of the valve body (5).

4. The discharge port structure of the popcorn portioning apparatus having a directional heating function according to any one of claims 1 to 3, wherein The directional heat preservation part (6) is a composite layered structure, and the directional heat preservation part (6) is composed of an inner lining pipe (61), a heating layer (62) and a heat insulation layer (63) from inside to outside. The heat insulation layer (63) is a multi-layer composite structure.

5. The popcorn dispensing apparatus according to claim 1, wherein, A split type fixing part (8) is also provided, which is detachably fastened to the directional heat preservation part (6), the number of the split type fixing part (8) is multiple, and the split type fixing part (8) is distributed along the axial direction of the directional heat preservation part (6), forming a radial clamping of the directional heat preservation part (6).

6. The popcorn dispensing apparatus according to claim 4, wherein, The heating layer (62) is a double-sided flexible graphene film, the heating layer (62) has a conductive surface and a heat insulation surface, one side facing the inner lining pipe (61) is the conductive surface, and the other side facing the heat insulation layer (63) is the heat insulation surface. The conductive surface of the heating layer (62) is bonded to the outer wall of the inner lining pipe (61) by high-temperature resistant conductive adhesive. The conductive surface of the heating layer (62) is coated with a copper foil electrode or a silver paste electrode.

7. The popcorn dispensing apparatus according to claim 6, wherein the outlet structure is configured to direct heat toward the popcorn. The conductive surface of the heating layer (62) is coated with a copper foil electrode, the copper foil electrode is in a grid shape or a snake shape, the copper foil electrode is located between the contact surface of the heating layer (62) and the inner lining pipe (61), and the end of the copper foil electrode is connected with a copper foil lead wire, forming a conductive path.

8. The discharge port structure of the popcorn dispensing apparatus having a directional heating function according to claim 6, wherein, The conductive surface of the heating layer (62) is coated with a silver paste electrode array, and the silver paste electrode array is in a snake shape, the silver paste electrode array is located between the contact surface of the heating layer (62) and the inner lining pipe (61), and the end of the silver paste electrode array is connected with a copper foil lead wire, forming a conductive path.

9. The popcorn dispensing apparatus according to claim 4, wherein, The heat insulation layer (63) is composed of a nano-silica aerogel heat insulation felt and a carbon fiber felt from inside to outside, and the heat insulation layer (63) is tightly covered on the outside of the heating layer (62) in a detachable manner.

10. The popcorn dispensing apparatus according to claim 4, wherein the outlet structure has a directional heating function. The heat insulation layer (63) is composed of a nano-silica aerogel heat insulation felt, a carbon fiber felt layer and a ceramic glass fiber cotton layer from inside to outside, and the heat insulation layer (63) is tightly covered on the outside of the heating layer (62) in a detachable manner. An aluminum foil reflection layer is also coated on the outer wall of the heat insulation layer (63).

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