A forming device for edible packaging film

Abstract

The present invention discloses a forming device for edible packaging film, comprising an outer frame, a supporting leg provided at the bottom of the outer frame, a double-roller flattening mechanism provided on one side of the top of the outer frame, a feeding mechanism provided on the top of the double-roller flattening mechanism, an initial heat treatment mechanism provided on one side of the inner frame, and at least three shaping rollers rotatably provided within the outer frame and on one side of the initial heat treatment mechanism, a supplementary heat mechanism provided on the upper portion of the shaping rollers, and a cooling mechanism provided on the lower portion of the shaping rollers. With the cooperation of the feeding mechanism, the double-roller flattening mechanism, and the initial heat treatment mechanism, polysaccharide molecules are uniformly clustered due to the initial heating, and their toughness and strength are improved, so that the film-forming slurry after the initial heating is not easily extended and broken due to the protrusions on the surface of the shaping rollers, and can effectively prevent the film-forming product from being damaged during the production process of the edible packaging film.

Description

Technical Field

[0001] The invention belongs to the technical field of food packaging, and in particular relates to a forming device for an edible packaging film. Background Art

[0002] Edible polysaccharide packaging films are widely used in food preservation, chemical and pharmaceutical industries, and food processing, making them a burgeoning industry. Polysaccharide edible films are primarily made from animal, plant, and microbial polysaccharides. Commonly used include pullulan films, konjac glucomannan films, and sodium alginate films. These films typically exhibit excellent mechanical properties and transparency. Polysaccharide films are chemically stable due to their unique long-chain helical molecular structure and intra- and intermolecular hydrogen bonds. Polysaccharides and their derivatives exhibit reversible thermogelation. When a solution of these substances is heated, its viscosity decreases with increasing temperature. Upon reaching a critical point, a three-dimensional gel structure forms. This gel is cooled and dried to remove some of the water, yielding an edible polysaccharide film.

[0003] In the prior art, there is disclosed an invention patent entitled "A Forming Device for Edible Packaging Film" with application number 2009100495997. The invention patent comprises a frame, N hot rolling rollers, a slurry coating device, a tension control mechanism, a film slitting device, and a computer servo temperature control system. The hot rolling roller is a hollow body, comprising a drum, a two-end drum cover plate, and a hollow central shaft. The outer surface of the drum is coated with a polytetrafluoroethylene non-stick coating. The drum cover plate is connected to a power sprocket. The hollow central shaft has a hollow input pipe coaxially sleeved on one side and a hollow output hose coaxially sleeved on the other side. The central shaft on one side of the input pipe and the radial direction of the input pipe each have a long milling groove, and the milling groove is in the shape of an inverted trapezoid. The central shaft on one side of the output pipe has a through hole radially therethrough. The output hose can be inserted into the hole to reach the inner wall of the drum. The slurry coating device includes a slurry leaking barrel, a scraper, a slurry leaking barrel opening and closing baffle, a feeding screw, and a motor. The slurry leaking barrel is the same length as the roller and has an inverted trapezoidal structure. The lower side of the trapezoid is the discharge port, and there is a feed port on the right side. A right-angled triangular scraper of the same length is set at the leaking barrel discharge port. The scraper can move horizontally to open and close the leaking barrel outlet material. A feeding screw is set in the middle of the trapezoid. Its axis is parallel to the axis of the hot rolling roller. The feeding screw is connected to the motor through a coupling; the tension control mechanism includes a tension frame, a tension corrector, and a tension sensor; the film slitting device includes a bracket, a slitting blade, a blade holder, and a pressure wheel shaft; the computer servo temperature control system includes a temperature controller, a temperature sensor, a heat source, a pressure pump, a servo motor, and a microcomputer processor.

[0004] A computer temperature control system is used to place the polysaccharide film-forming liquid with higher viscosity in a suitable molding temperature range. At the same time, a graded calendering device consisting of N hot rollers is used to ensure that the formed polysaccharide film has good streamlines and its mechanical properties are enhanced.

[0005] However, when the polysaccharide slurry with higher viscosity flows down from its slurry leakage tube, it is directly scraped by a scraper to form a film. Although it can form a film quickly, the direct scraper tears the falling slurry surface because it is not fully heated, which will directly destroy the mutual adhesion between the polysaccharide molecules in the film product, causing layer fractures during the hot rolling process of the rear hot rolling roller; and directly heating the hot surface of the film product in the multi-stage hot rolling roller, although it accelerates the film formation to a certain extent, during the process, the actual film product is more likely to cause extended rupture due to the elevation of impurities on the surface of the hot rolling roller, which is mainly due to the brittleness of the film product.

[0006] Therefore, it is necessary to provide a forming device that can effectively prevent the film product from being damaged during the production of edible packaging film. Summary of the Invention

[0007] The object of the present invention is to provide a forming device for edible packaging films to solve the problems existing in the prior art.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a forming device for edible packaging film, comprising an outer frame, a support leg provided at the bottom of the outer frame, a double-roller flattening mechanism provided on one side of the top of the outer frame, a feeding mechanism provided on the top of the double-roller flattening mechanism, the feeding mechanism being used to add flattened slurry to the double-roller flattening mechanism, and the double-roller flattening mechanism being used to perform preliminary film extrusion on the flattened slurry;

[0009] An initial heat treatment mechanism is provided on one side of the outer frame, and the initial heat treatment mechanism is used to preliminarily heat the product after film extrusion from the double-roll flat pressing mechanism;

[0010] At least three shaping rollers are rotatably arranged in the outer frame and on one side of the primary heat treatment mechanism, and the shaping rollers are arranged alternately in an oblique manner upward and downward; wherein a supplementary heating mechanism is provided on the upper part of the shaping rollers, and a cooling mechanism is provided on the lower part of the shaping rollers, the supplementary heating mechanism is used to heat the upper surface of the film-formed product from the shaping rollers, and the cooling mechanism is used to cool the lower surface of the film-formed product from the shaping rollers;

[0011] A plate heating and cutting mechanism is provided on the other side of the outer frame, and the plate heating and cutting mechanism is used to cut the film product during the heating process;

[0012] A slitting mechanism is provided on the other side of the outer frame, and the slitting mechanism is used to sort and transport the slit film products.

[0013] Preferably, the double-roller flattening mechanism includes a ballast cabin arranged on one side of the top of the outer frame, and pressure rollers are symmetrically rotated in the ballast cabin;

[0014] The front end center position of each pressure roller is connected to a connecting shaft 1, and the connecting shaft 1 passes through the ballast cabin and is connected to a gear, and the gears are engaged with each other. A motor 1 is also provided on the ballast cabin, and the rotor shaft of the motor 1 passes through the ballast cabin and is connected to the center position of one end of one of the pressure rollers.

[0015] Preferably, the feeding mechanism includes a slurry lower hopper fixedly arranged on the top of the ballast tank and the lower end of the slurry lower hopper penetrates into the ballast tank, support rods are connected to both sides of the top of the ballast tank and the tops of the support rods are connected to both sides of the slurry lower hopper, and a feed pipe is connected to one side of the slurry lower hopper, and the feed pipe is used to transport the slurry from the external slurry compressor to the slurry lower hopper, and the width of the lower port of the slurry lower hopper does not exceed millimeters.

[0016] Preferably, the initial heat treatment mechanism includes a support pile 1 fixedly arranged at the bottom of one side of the outer frame, a heat-insulating base 1 is arranged on the top of the support pile 1, a heat-conducting receiving plate is arranged on the heat-conducting receiving plate, a heater 1 is arranged on one side of the heat-conducting receiving plate, a pressing roller is rotatably arranged in the outer frame and close to the heat-conducting receiving plate, a motor 2 is arranged on the outer frame, and the rotor shaft of the motor 2 passes through the outer frame and is connected to the center position of one end of the pressing roller.

[0017] Preferably, baffle plates are provided on both sides of the outer frame, and a film mouth is provided on the baffle plate, and the film mouth is used to pass through the film product. Scrapers are connected on the baffle plate and located above and below the film mouth, and the scrapers are used to level the upper and lower surfaces of the film product.

[0018] Preferably, the heat supplement mechanism includes an upper exhaust pipe arranged on the top of the outer frame and the space between the upper exhaust pipe and the baffle plate is connected. An exhaust hood 1 is evenly arranged laterally on the top of the outer frame and between the baffle plates. The lower exhaust hole of the exhaust hood 1 is aligned with the film product on the side of the shaping roller. An air collecting hood 1 is arranged on the top of the outer frame and the air collecting hood 1 is connected to the exhaust hood 1. The upper end pipe of the air collecting hood 1 is connected to the flexible pipe 1 through the discharge pipe 1, and the flexible pipe 1 is connected to the external hot steam pipeline.

[0019] Preferably, the cooling mechanism includes a lower exhaust pipe arranged at the top of the outer frame and the space between the lower exhaust pipe and the baffle plate is connected. Exhaust hood 2 is evenly arranged laterally at the bottom of the outer frame and located between the baffle plates. Air collecting hood 2 is arranged at the bottom of the outer frame and the air collecting hood 2 is connected to exhaust hood 2. The lower end pipe of air collecting hood 2 is connected to flexible pipe 2 through discharge pipe 2, and flexible pipe 2 is connected to an external cooling air duct.

[0020] Preferably, a processing opening is provided at the front of the outer frame corresponding to the position of the initial heat treatment mechanism and the shaping roller, and a baffle 1 and a baffle 2 are hingedly provided at the processing opening.

[0021] Preferably, the plate heating and cutting mechanism includes a second support pile arranged at the bottom of the other side of the outer frame, a second heat-insulating base is arranged on the top of the second support pile, a heat-conducting support plate is arranged on the top of the second heat-conducting support plate, a second heater is arranged on the heat-conducting support plate, a rotary column is rotatably arranged on the other side of the outer frame, cutting rings are evenly arranged on the front and back of the rotary column, and the ring blades of the cutting rings are in contact with the heat-conducting support plate, a third motor is arranged on the outer frame, and the rotor shaft of the third motor passes through the outer frame and is connected to the center position of one end of the rotary column.

[0022] Preferably, the whole-split mechanism includes a connecting frame arranged on the other side of the outer frame, a rotary tube is rotatably arranged between the connecting frames, retaining rings are evenly arranged on the front and back of the rotary tube, and a motor four is fixedly arranged on the connecting frame, and the rotor shaft of the motor four passes through the connecting frame and is connected to the center position of one end of the rotary tube.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the present invention, with the cooperation of the feeding mechanism, the double-roll flattening mechanism and the initial heat treatment mechanism, the film-forming slurry after the initial heating is not easily prolonged and broken due to the protrusions on the surface of the shaping roller; and with the cooperation of the supplementary heat mechanism and the cooling mechanism, the binding force between the molecules in the film-forming product is strengthened due to the alternating application of hot and cold, making it more tough and not easily broken due to the protrusions on the surface of the shaping roller, which can effectively prevent the film-forming product from being damaged during the production of edible packaging film. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a main schematic diagram of the present invention.

[0026] Figure 2 for Figure 1 A partial cutaway diagram of .

[0027] Figure 3 for Figure 1 Schematic rear view.

[0028] In the figure: 1 outer frame, 2 support legs, 3 ballast, 4 pressure roller, 5 gear, 6 motor 1, 7 slurry hopper, 8 support rod, 9 feed pipe, 10 support pile 1, 11 insulation base 1, 12 heat transfer receiving plate, 13 heater 1, 14 pressure roller, 15 motor 2, 16 material baffle, 17 scraper, 18 upper exhaust pipe, 19 shaping roller, 20 exhaust hood 1, 21 gas collecting hood 1, 22 discharge pipe 1, 23 flexible pipe 1, 24 lower exhaust pipe, 25 exhaust hood 2, 26 gas collecting hood 2, 27 discharge pipe 2, 28 flexible pipe 2, 29 baffle 1, 30 baffle 2, 31 support pile 2, 32 insulation base 2, 33 heat transfer receiving plate, 34 heater 2, 35 rotary column, 36 cutting ring, 37 motor 3, 38 connecting frame, 39 rotary pipe, 40 baffle ring, 41 motor 4. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] See Figure 1. Figure 2 and Figure 3 A device for forming edible packaging film includes an outer frame 1, a support leg is fixed to the bottom of the outer frame 1 by bolts, a double-roller flattening mechanism is provided on the left side of the top of the outer frame 1, and a feeding mechanism is provided on the top of the double-roller flattening mechanism. The feeding mechanism is used to add flattened slurry to the double-roller flattening mechanism, and the double-roller flattening mechanism is used to perform preliminary film extrusion on the flattened slurry;

[0031] The feeding mechanism adds slurry to the double-roller flattening mechanism under pressure. The double-roller flattening mechanism can fully squeeze the falling slurry, strengthen the bonding force between polysaccharides with higher viscosity, and make the film product made later have higher tensile strength and toughness.

[0032] An initial heat treatment mechanism is provided on one side of the outer frame 1, and is used to preliminarily heat the product after film extrusion from the double-roll flattening mechanism;

[0033] The primary heat treatment mechanism preliminarily heats the unheated slurry film to solidify the outer surface of the slurry film.

[0034] Five shaping rollers 19 are rotatably arranged in the outer frame 1 and on the right side of the primary heat treatment mechanism, and the shaping rollers 19 are arranged alternately in an oblique upward and downward direction; the center position of the rear end of the shaping roller 19 is connected to the fixed shaft by an interference key, and the interference sleeve on the fixed shaft is provided with a bearing 1, and the bearing 1 is interference-inserted into the bearing groove provided at the rear end of the outer frame 1. The distance between the shaping rollers 19 is sufficient to shape the preliminarily heated slurry film into a standard thickness; wherein, a supplementary heating mechanism is provided on the upper part of the shaping roller 19, and a cooling mechanism is provided on the lower part of the shaping roller 19. The supplementary heating mechanism is used to heat the upper surface of the film-formed product from the shaping roller 19, and the cooling mechanism is used to cool the lower surface of the film-formed product from the shaping roller 19;

[0035] The heating mechanism applies heat to the top of the film product, and the cooling mechanism cools the bottom of the film product, so that the bonding force between molecules in the film product is strengthened due to the alternating application of hot and cold, making it tougher and less likely to break due to the protrusions on the surface of the shaping roller 19.

[0036] A plate heating and cutting mechanism is provided on the right side of the outer frame 1, and the plate heating and cutting mechanism is used to cut the film product during the heating process;

[0037] The plate heating and cutting mechanism heats the film product from the bottom. Therefore, during the movement of the film product, it is heated from bottom to top until it finally forms an edible packaging film. Therefore, the embrittlement process is also from bottom to top. The upper layer of the packaging film has a protective effect on the lower layer. In this process, the rolling cutting process is realized from the top, which is not easy to cause brittle cracking of the packaging film due to rolling cutting.

[0038] The plate heating and cutting mechanism can effectively separate the processed edible packaging film into multiple strips.

[0039] A tidying and separating mechanism is provided on the right side of the outer frame, which is used to sort and transport the cut film products.

[0040] The dividing mechanism can separate the edible packaging film into multiple strips through the plate heating and cutting mechanism for sorting, avoiding the messy discharge due to narrowing, which is conducive to the subsequent winding roller to rewind it.

[0041] The double-roller flattening mechanism includes a ballast chamber 3 bolted to the left side of the top of the outer frame 1. The ballast chamber 3 is provided with symmetrically rotating pressure rollers 4. The distance between the pressure rollers 4 is 1.5 times the thickness of the standard edible packaging film.

[0042] The front end center position of the pressure roller 4 is connected to a coupling shaft 1 by an interference key. The coupling shaft 1 is interference inserted in the inner ring of the bearing 2 that is interference inserted on both sides of the front end of the ballast 3. The coupling shaft 1 passes through the front of the ballast 3 and is connected to a gear 5 by an interference key. The gears 5 are engaged with each other. A motor 1 6 is also bolted to the back of the ballast 3. The rotor shaft of the motor 1 6 passes into the ballast 3 and is interference keyed to the rear end center position of the pressure roller 4 on the right.

[0043] Driven by motor 6, gears 5 mesh with each other and rotate, causing pressure rollers 4 to rotate in opposite directions, thereby effectively squeezing the falling slurry, causing the slurry to be initially flattened and fall into the primary heat treatment mechanism. The slurry is squeezed by the pressure rollers 4 rotating in opposite directions, so that the polysaccharides with higher viscosity inside the slurry that have not been initially heated are pressurized by external force, making the film product made later have higher tensile strength and toughness.

[0044] See Figure 1 、 Figure 2 and Figure 3 The feeding mechanism includes a slurry lower hopper 7 fixed with bolts on the top of the ballast tank 3, and the lower end of the slurry lower hopper 7 is inserted into the ballast tank 3. Support rods 8 are fixed with screws on both sides of the top of the ballast tank 3, and the tops of the support rods 8 are welded to the left and right sides of the slurry lower hopper 7. The left flange of the slurry lower hopper 7 is connected to a feed pipe 9. The feed pipe 9 is used to transport the slurry from the external slurry compressor to the slurry lower hopper 7. The width of the lower port of the slurry lower hopper 7 is 1 mm.

[0045] The slurry is pressurized and input into the slurry lower hopper 7 by an external slurry pressurizer, and the slurry is squeezed and discharged from the lower port of the slurry lower hopper 7.

[0046] See Figure 2 and Figure 3 The initial heat treatment mechanism includes a support pile 10 bolted to the bottom left side of the outer frame 1, and an insulating base 11 is welded to the top of the support pile 10. A heat-conducting receiving plate 12 is bolted to the insulating base 11. The heat-conducting receiving plate 12 is made of food-grade aluminum alloy. A heater 13 is fixed to the left side of the heat-conducting receiving plate 12 with screws. The heater 13 is a plate heater. The cable of the heater 13 is connected to the external thermostat, and the temperature is set to 120°C. The pressing roller 14 and the motor 2 15 are bolted to the rear left side of the outer frame 1. The rotor shaft of the motor 2 15 passes through the outer frame 1 and is connected to the rear end center position of the pressing roller 14 by an interference key. The pressing roller 14 is located in the arc-shaped bend in the heat-conducting receiving plate 12, and the minimum distance between the two is 1.2 times the thickness of the standard edible packaging film.

[0047] Therefore, the pressing roller 14 is driven by motor 2 15 to rotate counterclockwise, which can not only drive the preliminarily heated membrane slurry to move to the right, but also further squeeze the slurry when it is in the arc surface heating state, which not only makes the polysaccharides with higher viscosity inside the slurry heated evenly, but also makes the polysaccharide molecules evenly clustered, and the toughness and strength are improved, so that the membrane slurry after preliminarily heating is not easy to be prolonged and broken due to the protrusions on the surface of the shaping roller 19.

[0048] See Figure 2 A baffle plate 16 is seamlessly welded on the left and right sides of the outer frame 1. A film opening is set on the baffle plate 16, and the film opening is used to pass through the film product. A scraper 17 is connected to the baffle plate 16 and located above and below the film opening. The scraper 17 is used to level the upper and lower surfaces of the film product.

[0049] The scraper 17 can be set to level the membrane slurry and membrane semi-finished products on the top and bottom to prevent them from being bent and pressed, thereby ensuring the quality of the products.

[0050] See Figure 1 、 Figure 2 and Figure 3 The heat supplement mechanism includes an upper exhaust pipe 18 integrally arranged on the top of the outer frame 1, and the space between the upper exhaust pipe 18 and the baffle plate 16 is connected. An exhaust hood 20 is welded horizontally and evenly and seamlessly at the top of the outer frame 1 and between the baffle plates 16. The lower exhaust hole of the exhaust hood 20 is aligned with the film product on the side of the shaping roller 19, wherein the lower exhaust hole of the exhaust hood 20 is aligned with the shaping roller 19, and an air collecting hood 21 is provided on the top of the outer frame 1, and the air collecting hood 21 is connected to the exhaust hood 20. The upper end pipe of the air collecting hood 21 is connected to the flexible pipe 23 through the discharge pipe 22, and the flexible pipe 23 is connected to the external hot steam pipeline.

[0051] The hot steam pipeline inputs hot steam into the gas collecting hood 21, and discharges it to the film product through the lower exhaust hole of the exhaust hood 20, so that the film product is fully heated, and the excess hot steam is discharged through the upper exhaust pipe 18.

[0052] See Figure 1 、 Figure 2 and Figure 3 The cooling mechanism includes a lower exhaust pipe 24 integrally arranged on the top of the outer frame 1, and the space between the lower exhaust pipe 24 and the baffle plate 16 is connected. An exhaust hood 25 is welded uniformly and seamlessly to the bottom of the outer frame 1 and located between the baffle plates 16. An air collecting hood 26 is seamlessly welded to the bottom of the outer frame 1 and the air collecting hood 26 is connected to the exhaust hood 25. The lower end pipe of the air collecting hood 26 is connected to the flexible pipe 28 through the discharge pipe 27, and the flexible pipe 28 is connected to the external cooling pipe.

[0053] Cold air is input from the external cold air pipe to the second air collecting hood 26 through the second flexible pipe 28, and then discharged to the film product before the adjacent shaping roller 19 through the discharge holes on the second exhaust hood 25, thereby cooling the film product.

[0054] As the film product moves from left to right, it alternates between hot-cold-hot-cold-hot, so that the bonding force between molecules in the film product is strengthened due to the alternating application of hot and cold, making it tougher and less likely to break due to the protrusions on the surface of the shaping roller 19.

[0055] See Figure 1 A processing port is provided at the front of the outer frame 1 and corresponds to the position of the initial heat treatment mechanism and the shaping roller 19, and a baffle 1 29 and a baffle 2 30 are hingedly provided at the processing port.

[0056] The processing port is used to gradually add the material into the initial heat treatment mechanism, the shaping roller 19, the plate heating and cutting mechanism and the dividing mechanism after the initial discharge from the double-roller flattening mechanism, while the baffle 1 29 and the baffle 2 30 are used to block the outer frame 1 during subsequent normal production.

[0057] See Figure 1 and Figure 2The plate heating and cutting mechanism includes a support pile 2 31 bolted to the bottom right side of the outer frame 1, the top of the support pile 2 31 is bolted to the insulation base 2 32, the top of the insulation base 2 32 is bolted to a heat-conducting support plate 33, the bottom of the heat-conducting support plate 33 is screwed to a heater 2 34, the power cord of the heater 2 34 is connected to the external thermostat, and the temperature is controlled at 140°C. The heat-conducting support plate 33 is made of food-grade stainless steel, and a rotary column 36 is rotatably provided on the right side of the outer frame 1. Cutting rings 36 are evenly and integrally provided on the rotary column 36, and the ring blade of the cutting ring 36 is in contact with the heat-conducting support plate 33. A motor 37 is bolted to the rear right side of the outer frame 1, and the rotor shaft of the motor 37 passes through the outer frame 1 and is connected to the rear end center position of the rotary column 36.

[0058] The motor 37 drives the rotary column 36 to rotate, so that the outer ring blade of the cutting ring 36 can cut the film-made product at equal intervals. Since the heat-conducting support plate 33 heated by the heater 2 34 heats the film-made product from the bottom, the film-made product is heated from bottom to top during its movement until it finally forms an edible packaging film. Therefore, the embrittlement process is also from bottom to top, and the upper layer of the packaging film has a covering protective effect on its lower layer. In this process, the cutting ring 36 realizes the rolling cutting process from the top, which is not easy to cause brittle fracture of the packaging film due to rolling cutting.

[0059] See Figure 1 、 Figure 2 and Figure 3 The whole dividing mechanism includes a connecting frame 38 fixed by bolts to the right side of the outer frame 1, and a rotary tube 39 is rotatably arranged between the connecting frames 38. More specifically, the center position of the rear end of the rotary tube 39 is connected to the connecting shaft by an interference key, and the connecting shaft is interference-inserted into the inner ring of the bearing three interference-inserted at the rear end of the outer frame 1. A retaining ring 40 is uniformly and integrally arranged on the front and back of the rotary tube 39. A motor four 41 is bolted to the connecting frame 38. The rotor shaft of the motor four 41 passes through the connecting frame 38 and is interference-keyed to the center position of one end of the rotary tube 39.

[0060] The motor 41 drives the coil 39 to rotate, so that the coil 39 rotates clockwise under the film-forming product, thereby moving the film-forming product. Due to the setting of the retaining ring 40, the multiple film-forming products to be cut are effectively limited after they exit the outer frame 1, avoiding messy discharge.

[0061] The working principle of this embodiment is as follows:

[0062] Feeding mechanism, double-roller flattening mechanism and initial heat treatment mechanism: the feeding mechanism presses the double-roller flattening mechanism to add slurry, and the double-roller flattening mechanism can fully squeeze the falling slurry, strengthen the bonding force between the polysaccharide molecules, and make the film product made later have higher tensile strength and toughness; then the unheated slurry film is preliminarily heated by the initial heat treatment mechanism, so that the outer surface of the slurry film is solidified, and while driving the preliminarily heated film slurry to move to the right, the slurry can be further squeezed in the arc surface heating state, which not only makes the polysaccharide molecules with higher viscosity heated evenly, but also makes them evenly clustered, and the toughness and strength are improved, so that the film slurry after preliminarily heating is not easy to be prolonged and broken due to the protrusions on the surface of the shaping roller 19.

[0063] Supplementary heating mechanism and cooling mechanism: The supplementary heating mechanism applies heat to the top of the film product, and the cooling mechanism cools the bottom of the film product, so that the bonding force between molecules in the film product is strengthened due to the alternating application of hot and cold, making it tougher and less likely to break due to the protrusions on the surface of the shaping roller 19.

[0064] Plate heating and cutting mechanism: It heats from the bottom of the film product. Therefore, during the movement of the film product, it is heated from bottom to top until it finally forms an edible packaging film. Therefore, the brittleness process is also from bottom to top. The upper layer of the packaging film has a covering protection effect on its lower layer. In this process, the rolling cutting process is realized from the top, which is not easy to cause brittle fracture of the packaging film due to roller cutting.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A forming device for edible packaging film, characterized in that: The outer frame (1) comprises an outer frame (1), the bottom of the outer frame (1) is provided with a supporting leg, a double-roller flattening mechanism is provided on one side of the top of the outer frame (1), a feeding mechanism is provided on the top of the double-roller flattening mechanism, the feeding mechanism is used to add flattened slurry to the double-roller flattening mechanism, and the double-roller flattening mechanism is used to perform preliminary film extrusion on the flattened slurry; An initial heat treatment mechanism is provided on one side of the outer frame (1), and the initial heat treatment mechanism is used to preliminarily heat the product after film extrusion from the double-roll flattening mechanism; At least three shaping rollers (19) are rotatably arranged in the outer frame (1) and on one side of the primary heat treatment mechanism, and the shaping rollers (19) are arranged alternately in an oblique manner upward and downward; wherein, a supplementary heating mechanism is provided on the upper portion of the shaping roller (19), and a cooling mechanism is provided on the lower portion of the shaping roller (19), the supplementary heating mechanism is used to heat the upper surface of the film-formed product in the shaping roller (19), and the cooling mechanism is used to cool the lower surface of the film-formed product in the shaping roller (19); A plate heating and cutting mechanism is provided on the other side of the outer frame (1), and the plate heating and cutting mechanism is used to cut the film product during the heating process; A slitting mechanism is provided on the other side of the outer frame, and the slitting mechanism is used to sort and transport the slit film products.

2. The forming device for an edible packaging film according to claim 1, characterized in that: The double-roller flattening mechanism comprises a ballast cabin (3) arranged on one side of the top of the outer frame (1), and a pressure roller (4) is symmetrically rotated and arranged in the ballast cabin (3); The front end center position of each of the pressure rollers (4) is connected to a connecting shaft 1, which passes through the ballast cabin (3) and is connected to a gear (5). The gears (5) are meshed with each other. A motor 1 (6) is also provided on the ballast cabin (3). The rotor shaft of the motor 1 (6) passes through the ballast cabin (3) and is connected to the center position of one end of one of the pressure rollers (4).

3. The forming device of an edible packaging film according to claim 2, characterized in that: The feeding mechanism includes a slurry lower hopper (7) fixedly arranged on the top of the ballast tank (3), and the lower end of the slurry lower hopper (7) penetrates into the ballast tank (3), the top of the ballast tank (3) is connected to support rods (8) on both sides, and the tops of the support rods (8) are connected to both sides of the slurry lower hopper (7), and one side of the slurry lower hopper (7) is connected to a feed pipe (9), and the feed pipe (9) is used to transport slurry from an external slurry pressurizer to the slurry lower hopper (7), and the width of the lower port of the slurry lower hopper (7) does not exceed 1 mm.

4. The forming device for an edible packaging film according to claim 1, characterized in that: The initial heat treatment mechanism includes a support pile (10) fixedly arranged at the bottom of one side of the outer frame (1), a heat-insulating base (11) is arranged on the top of the support pile (10), a heat-conducting receiving plate (12) is arranged on the heat-conducting receiving plate (11), a heater (13) is arranged on one side of the heat-conducting receiving plate (12), a pressing roller (14) is rotatably arranged in the outer frame (1) and close to the heat-conducting receiving plate (12), a motor (15) is arranged on the outer frame (1), and the rotor shaft of the motor (15) passes through the outer frame (1) and is connected to the center position of one end of the pressing roller (14).

5. The forming device of an edible packaging film according to claim 1, characterized in that: Baffle plates (16) are provided on both sides of the outer frame (1), and a film opening is provided on the baffle plate (16), and the film opening is used to penetrate the film product. Scrapers (17) are connected to the baffle plate (16) and located above and below the film opening, and the scrapers (17) are used to level the upper and lower surfaces of the film product.

6. The forming device for an edible packaging film according to claim 1, characterized in that: The heat supplement mechanism includes an upper exhaust pipe (18) arranged on the top of the outer frame (1) and the space between the upper exhaust pipe (18) and the baffle plate (16) is connected. An exhaust hood (20) is evenly arranged laterally on the top of the outer frame (1) and between the baffle plates (16). The lower exhaust hole of the exhaust hood (20) is aligned with the film product on the side of the shaping roller (19). An air collecting hood (21) is arranged on the top of the outer frame (1) and the air collecting hood (21) is connected to the exhaust hood (20). The upper end pipe of the air collecting hood (21) is connected to the flexible pipe (23) through the discharge pipe (22). The flexible pipe (23) is connected to the external hot steam pipeline.

7. The forming device for an edible packaging film according to claim 1, characterized in that: The cooling mechanism includes a lower exhaust pipe (24) arranged at the top of the outer frame (1), and the space between the lower exhaust pipe (24) and the baffle plate (16) is connected. The bottom of the outer frame (1) and the position between the baffle plates (16) are uniformly and laterally provided with exhaust hoods (25). The bottom of the outer frame (1) is provided with gas collecting hoods (26), and the gas collecting hoods (26) are connected to the exhaust hoods (25). The lower end pipe of the gas collecting hoods (26) is connected to the flexible pipes (28) through the discharge pipes (27), and the flexible pipes (28) are connected to the external cooling pipe.

8. The edible packaging film forming device according to claim 1, characterized in that: A processing opening is provided at the front of the outer frame (1) and at a position corresponding to the initial heat treatment mechanism and the shaping roller (19), and a baffle 1 (29) and a baffle 2 (30) are hingedly provided at the processing opening.

9. The forming device for an edible packaging film according to claim 1, characterized in that: The plate heating and cutting mechanism comprises a second support pile (31) arranged at the bottom of the other side of the outer frame (1), a second heat-insulating base (32) is arranged on the top of the second support pile (31), a heat-conducting support plate (33) is arranged on the top of the second heat-conducting support plate (32), a second heater (34) is arranged on the heat-conducting support plate (33), a rotating column (35) is rotatably arranged on the other side of the outer frame (1), cutting rings (36) are evenly arranged on the front and back of the rotating column (35), and the ring blades of the cutting rings (36) are in contact with the heat-conducting support plate (33), and a third motor (37) is arranged on the outer frame (1), and the rotor shaft of the third motor (37) passes through the outer frame (1) and is connected to the center position of one end of the rotating column (35).

10. The forming device of an edible packaging film according to claim 1, characterized in that: The whole-split mechanism comprises a connecting frame (38) arranged on the other side of the outer frame (1), a rotary tube (39) is rotatably arranged between the connecting frames (38), retaining rings (40) are evenly arranged on the front and back of the rotary tube (39), and a motor four (41) is fixedly arranged on the connecting frame (38), and the rotor shaft of the motor four (41) passes through the connecting frame (38) and is connected to the center position of one end of the rotary tube (39).

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