CN115230158A - Plant protein meat multiple fiber forming manufacturing equipment - Google Patents

Abstract

The invention relates to the field of plant protein meat manufacturing, and discloses plant protein meat multiple fiber molding manufacturing equipment which comprises a pretreatment device, a mixing device and a 3D printing device which are sequentially connected, wherein the pretreatment device comprises a stirrer and an extruder, the mixing device comprises a mixer, the 3D printing device comprises an extruder and a printing spray head, the feeding end of the extruder is connected with the stirrer, the discharging end of the extruder is connected with the extruder through the mixer, and the discharging end of the extruder is connected with the printing spray head. The invention can realize the processing of the mixed and preheated protein raw materials, so that the protein of the protein raw materials is organized and forms protein meat suitable for printing. The structure is small and exquisite, the cost is low, the cost of processing equipment is greatly saved, and the processing efficiency can be improved.

Description

Plant protein meat multiple fiber forming manufacturing equipment

Technical Field

The invention belongs to the field of plant protein meat manufacturing, and relates to plant protein meat multi-fiber forming manufacturing equipment.

Background

With the development of modern society, the population increase rate is rapidly increased, and the demand of people on healthy nutritional diet is continuously increased. Meat products have a unique position in the human diet and, as a good quality food, are always an excellent choice for protein intake. With the improvement of living standard, the consumption of meat products is increased year by year. However, the global resources are limited, and if the traditional animal husbandry is only relied on to supply a huge market worldwide, the demand cannot be met. The traditional animal husbandry needs to occupy a large amount of land resources in the breeding process, consumes a large amount of energy and water resources, excrement produced by livestock can pollute water and soil of a farm, and the animal husbandry can discharge a large amount of greenhouse gases, the discharge amount of the greenhouse gases accounts for 12% of the global discharge amount, and the livestock breeding method is an important factor influencing global climate. The use of veterinary drugs and antibiotics cannot be avoided in animal husbandry, so a certain amount of antibiotics, hormones, veterinary drugs and the like can be remained in livestock meat, and a plurality of food safety problems are caused. The livestock meat has high content of saturated fatty acid, and can cause diseases such as hyperglycemia, hyperlipidemia, hypertension and the like after being eaten in large quantities for a long time. Because the problems of excessive carbon emission, low resource utilization rate, high consumption, animal welfare and the like exist in the processes of producing, processing, eating and the like of the traditional meat products, people hope to find a more healthy and nutritional product to replace the traditional meat products. The appearance of "meat analogue" has gradually attracted people's attention and has become the focus of food industry.

At present, the artificial meat processing and manufacturing technology mainly utilizes an extrusion technology to realize the organization of protein, and then extrudes and expands the protein to prepare the artificial meat. The process comprises the following steps: firstly, mixing and stirring bean protein, putting the bean protein into a feeder, conveying the bean protein into a processing screw, shearing and extruding the protein by a screw processing device under the high-temperature and high-pressure environment, and conveying the protein to an extrusion section; finally, the extrusion section cools the protein and extrudes the material to form the meat analogue. It can be seen that although this approach is relatively mature and practical, it suffers from the following problems: firstly, the manufacturing cost of processing equipment is high, so that the artificial cost water rising ship is high; secondly, the animal and livestock meat product has rich and compact fiber structure, fresh and tender mouthfeel and rich elasticity and chewiness, compared with the animal meat, the texture of the plant protein meat has loose structure, has certain difference with the animal meat in mouthfeel, and needs to be further adjusted and modified, so the product in the mode has poor mouthfeel; thirdly, most of the existing artificial meat processing equipment are single-structure nozzles, the processing efficiency is low, and the industrial requirement of artificial meat cannot be met.

Disclosure of Invention

In view of this, the present invention provides a plant protein meat multiple fiber forming manufacturing device, which has the advantages of automatically feeding materials in proportion, automatically mixing, adding auxiliary materials in batches to ensure that part of the raw materials do not deteriorate in a high-temperature high-shear environment of an extruder, automatically controlling temperatures of each stage of protein organization in a gradient manner, and the like, so as to meet requirements of a 3D plant protein meat printing process on an extrusion device, and simultaneously improve production efficiency and product quality.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides plant protein meat multi-fiber forming manufacturing equipment which comprises a pretreatment device, a mixing device and a 3D printing device which are sequentially connected, wherein the pretreatment device comprises a stirrer and an extruding machine, the mixing device comprises a blending machine, the 3D printing device comprises an extruding machine and a printing spray head, the feeding end of the extruding machine is connected with the stirrer, the discharging end of the extruding machine is connected with the extruding machine through the blending machine, and the discharging end of the extruding machine is connected with the printing spray head.

Furthermore, the top of the stirrer is provided with a feed hopper, the bottom of the stirrer is in a hopper shape and is provided with a blanking pipe, and the outlet of the blanking pipe is provided with an electromagnetic valve; the stirrer and the blending machine are connected with a plurality of charging barrels with metering pumps through pipelines.

Furthermore, a heating plate is arranged on the extruding machine, a cooling medium pipeline is wound on the extruding machine and close to the discharging end, and the cooling medium pipeline is connected with a circulating pump.

Further, the transmission end of the extruder is connected with a first driving motor through a reduction gearbox; a homodromous meshed double screw is arranged in the extruder, a kneading block is arranged on the homodromous meshed double screw, and a single screw is in a four-section type thread structure, a first section of thread adopts a single-head variable-lead thread, a second section of thread adopts a single-head same-lead thread, a third section of thread adopts a double-head thread, and a fourth section of thread adopts a reverse double-head thread; the reduction gearbox is a five-shaft homodromous transmission gearbox and consists of a box body, an input shaft, a transmission shaft and output shafts, wherein the input shaft, the transmission shaft and the output shafts are arranged in the box body, the transmission shaft and the output shafts are arranged in two numbers and are symmetrically arranged relative to the input shaft, a driving gear arranged on the input shaft is meshed with transmission large gears respectively arranged on the two transmission shafts, transmission small gears arranged on the two transmission shafts are respectively meshed with driven gears arranged on the two output shafts, and the two output shafts are respectively butted with homodromous meshed double screws of the extruder.

Further, agitator and blending machine all are provided with the (mixing) shaft of taking second driving motor, and second driving motor adopts buncher, the (mixing) shaft includes horizontal puddler, spiral stirring leaf, and horizontal puddler is established to vertical parallel arrangement's many, adjacent horizontal puddler end-to-end connection spiral stirring leaf.

Further, the extruder includes feed bin, drive assembly and third driving motor, sets up the incorgruous meshing twin-screw in the feed bin, and the incorgruous meshing twin-screw passes through drive assembly to be connected with third driving motor, sets up inlet pipe and discharging pipe on the feed bin, and the blending machine links to each other with the inlet pipe, and it is continuous with the discharging pipe to print the shower nozzle, and third driving motor adopts gear motor.

Further, the extruder comprises a base for mounting the bin; the transmission assembly consists of a bearing seat, a rotating shaft and bevel gears, the rotating shaft is connected with a third driving motor, two symmetrical bevel gears are arranged on the rotating shaft, and matched bevel gears which are respectively meshed with the two bevel gears arranged on the rotating shaft for transmission are arranged at the same side end of the heterodromous meshed double screws; the rotating shaft is also arranged on the base through bearing seats at two ends of the rotating shaft.

Furthermore, the storage bin consists of an upper cover and a lower box body, and a clamping structure of a convex rib and a groove is arranged at the contact part of the upper cover and the lower box body; the storage bin is provided with a heating wire; the heat preservation assembly is arranged on the outer pipe wall of the discharging pipe and the feeding pipe, the discharging pipe is a high-temperature-resistant soft pipe, and the feeding pipe is a high-temperature-resistant hard pipe or a metal pipe.

Further, print the shower nozzle and be coaxial dual nozzle structure, set up gel passageway, gondola water faucet formula extrusion plate, annular cooling tube and temperature sensor on it, gondola water faucet formula extrusion plate passes through screw thread bail detachable and installs on printing the shower nozzle, sets up on the gel passageway and extrudes the coaxial glue outlet hole of board through-hole with gondola water faucet formula, and the annular cooling tube is located gondola water faucet formula extrusion plate's top.

Further, 3D printing device still includes coordinate moving mechanism and shaping platform, and coordinate moving mechanism comprises mounting bracket, X axle sideslip subassembly, Z axle lifting unit, Y axle translation subassembly, support, and shaping platform, Z axle lifting unit and Y axle translation subassembly all set up on the support, and X axle sideslip subassembly sets up on Z axle lifting unit, and the mounting bracket setting is on X axle sideslip subassembly, and the setting of printing shower nozzle is on the mounting bracket, and Y axle translation subassembly acts on the shaping platform.

The invention has the technical effects that:

1. the plant protein meat multiple fiber forming manufacturing equipment adopts a multi-stage mixing structure, so that part of raw materials cannot be damaged due to a high-temperature high-pressure high-shear environment in an organization stage, the problem of part of substances in the protein organization process is effectively solved, continuous automatic feeding can be realized, and manpower and material resources are saved; meanwhile, the double-screw extruder is beneficial to the protein texturizing effect.

2. According to the plant protein meat multi-fiber forming manufacturing equipment, the symmetrical opposite-direction meshed double screws are adopted for extrusion and feeding, so that continuous feeding is realized in the 3D printing process of the plant protein meat, the feeding speed is increased, the feeding stability is improved, the raw materials can be stirred again in the double screw extrusion process, the quality of finished products is guaranteed through certain processing, meanwhile, the temperature control device is designed in the whole set of extrusion system, the raw materials in each link can be guaranteed to be at proper temperature, and the quality of the finished products is improved.

3. According to the plant protein meat multi-fiber forming manufacturing equipment, a 3D printing device is used for ensuring that a pasty mixture can smoothly complete a fiberization process, an annular cooling pipe and a shower head type extrusion plate are respectively arranged in a printing nozzle in a first stage and a second stage, the temperature of the annular cooling pipe can be set, and the shower head type extrusion plate can be replaced to change the size and the number of apertures in the plate, so that high-efficiency printing can be performed on different raw material formulas; still be equipped with the gel passageway at the second stage of printing the shower nozzle, the gel is finally sprayed through the play jiao Kong of printing the shower nozzle bottom and is extruded to ensure to extrude in-process product tissue adhesion closely, finally improve the quality of product.

In general, the plant protein meat multi-fiber forming manufacturing equipment can process the mixed and preheated protein raw materials, so that the protein is organized and protein meat suitable for printing is formed, the structure of the equipment is small and exquisite, the cost is low, and the cost of processing equipment is greatly saved. The stirrer and the blending machine are arranged at the front and the back of the extruder, so that part of raw materials cannot be damaged due to high-temperature, high-pressure and high-shear environment in an organization stage, the feeding proportion is controlled by one-time mixing, automatic feeding is realized, and intelligent production is realized; the secondary mixing auxiliary raw materials are added, the texturizing effect is good, and all the components are uniformly mixed. And in the extruder, the gel is mixed by a replaceable shower type extrusion plate and is rapidly cooled and formed on a forming platform, so that the forming time is greatly shortened, the production efficiency is improved, and a high-quality finished product is obtained.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic front view of a plant protein meat multiple fiber forming manufacturing apparatus of the present invention;

FIG. 2 is a schematic plan view of the plant protein meat multiple fiber forming manufacturing equipment of the present invention;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a schematic view of the pretreatment device of FIG. 1;

FIG. 5 is a top view of FIG. 3;

FIG. 6 is a schematic side view of the mixer;

FIG. 7 is a schematic side view of the mixing device of FIG. 1;

FIG. 8 is a schematic view of the internal structure of the reduction box;

FIG. 9 is a schematic view of a co-rotating intermeshing twin screw configuration of an extruder;

FIG. 10 is a schematic view of the structure of the stirring shaft;

fig. 11 is a schematic plan view of the 3D printing apparatus of fig. 1;

FIG. 12 is a perspective view of FIG. 10;

FIG. 13 is a schematic structural view of a counter-rotating twin screw;

FIG. 14 is a schematic structural view of the transmission assembly;

FIG. 15 is a schematic view of a print head;

FIG. 16 is a cross-sectional schematic view of FIG. 14;

FIG. 17 is a schematic view of a shower type extrusion plate;

FIG. 18 is a schematic structural view of an annular cooling tube;

fig. 19 is a schematic structural view of the coordinate moving mechanism;

reference numerals: a pretreatment device 100, a mixing device 200, a 3d printing device 300;

the device comprises a first driving motor 1, a reduction gearbox 2, a metering pump 3, a charging barrel 4, a discharging pipe 5, a second driving motor 6, a stirring shaft 7, a stirrer 8, a feeding hopper 9, an extruder 10, a heating plate 11, a cooling medium pipeline 12, a circulating pump 13, a blending machine 14, a homodromous meshed twin screw 15, a third driving motor 16, a transmission component 17, a storage bin 18, a heterodromous meshed twin screw 19, an extruder 20, a base 21, a feeding pipe 22, a discharging pipe 23, a printing spray head 24, a gel channel 25, a shower head type extrusion plate 26, a threaded staple bolt 27, a glue outlet 28, an annular cooling pipe 29, a temperature sensor 30, a coordinate moving mechanism 31, a forming platform 32 and an operation control platform 33;

the device comprises an input shaft 2a, a driving gear 2b, a transmission shaft 2c, an output shaft 2d, a driven gear 2e, a transmission small gear 2f and a transmission large gear 2g;

a solenoid valve 5a;

a transverse stirring rod 7a and a spiral stirring blade 7b;

the thread-pressing mechanism comprises a kneading block 15a, a first section of thread 15b, a second section of thread 15c, a third section of thread 15d and a fourth section of thread 15e;

a bearing seat 17a, a rotating shaft 17b, a bevel gear 17c;

mounting block 31a, x-axis traversing assembly 31b, z-axis lifting assembly 31c, y-axis translating assembly 31d, and support 31e.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1-19, the plant protein meat multiple fiber forming manufacturing equipment provided by this embodiment is composed of a pretreatment device 100, a mixing device 200, and a 3D printing device 300 connected in sequence, wherein the pretreatment device includes a stirrer 8 and an extruder 10, the mixing device includes a mixer 14, the 3D printing device includes an extruder 20 and a printing nozzle 24, a feeding end of the extruder 10 is connected with the stirrer 8, a discharging end of the extruder 10 is connected with the extruder 20 through the mixer 14, and a discharging end of the extruder 20 is connected with the printing nozzle 24. In this way, the stirrer and the blending device are arranged at the front and the back of the extruder, so that part of raw materials can not be damaged due to the high-temperature high-pressure high-shearing environment in the organizing stage, the feeding proportion is controlled by one-time mixing, the automatic feeding is realized, and the intelligent production is realized; the secondary mixing auxiliary raw materials are added, the texturizing effect is good, and all the components are uniformly mixed. Through the extruder raw materials of misce bene and propelling movement to implement 3D and print in printing the shower nozzle, and cool off the shaping rapidly at the shaping platform to shorten the shaping time greatly, improve production efficiency, and obtain high-quality finished product.

Specifically, the driving end of the extruder 10 of the pretreatment device 100 is connected with the first driving motor 1, the feeding end is connected with the stirrer 8, and the discharging end is connected with the mixer 14 of the mixing device 200; the stirrer 8 is used for uniformly mixing main raw materials of textured protein, such as vegetable protein, lipid, salt, water and the like, and the extruder 10 is used for pressurizing, heating and shearing the raw materials of protein and the like mixed by the stirrer to be textured; the mixer 14 is used for adding plant pigment, amino acid, vitamin, antioxidant, nutrient yeast, perfume and other temperature and pressure sensitive materials to mix with textured protein and produce plant protein meat. When the plant protein pulp mixer is used, after partial plant protein raw materials are uniformly mixed by the mixer, plant protein pulp is formed and is fed into the extruder, the extruder is driven by the driving motor to heat, pressurize and shear the plant protein pulp, so that plant protein is fully organized in the extruder to obtain molten plant protein pulp and is conveyed to the mixer, the mixer is used for carrying out plant protein pulp conditioning treatment by adding carbohydrate solution, flavor pigment solution and the like in an auxiliary manner, the organizing effect is better, and the plant protein pulp is conveyed to a subsequent process to finally form a plant protein meat product.

A feed hopper 9 is arranged at the top of the stirrer 8 in the embodiment and used for feeding powder, the bottom of the stirrer is hopper-shaped and is provided with a blanking pipe 5 connected with the feeding end of an extruder 10, and the outlet of the blanking pipe 5 is provided with an electromagnetic valve 5a; the stirrer 8 is also connected via a line (not shown) to two cartridges 4 with metering pumps 3. The outer wall of the tank body of the stirrer 8 can be also provided with a heating resistance wire (not shown), and the resistance wire is electrified to heat the raw materials while stirring. Thus, the mixer 8 can uniformly mix, preheat and pre-mix the powder (such as vegetable protein) from the hopper 9 and the liquid material (such as lipid and water) from the barrel 4 by the metering pump 3, and the paste protein flows into the feeding end of the extruder 10 through the electromagnetic valve 5a below the feeding pipe 5. And a base (not marked) is arranged below the extruder 10, a heating plate 11 is arranged on the outer wall of the middle section of the extruder, a cooling medium pipeline 12 is arranged close to the discharge end of the extruder, the cooling medium pipeline 12 is connected with a circulating pump 13, and the cooling medium circulating in the cooling medium pipeline 12 can be water, air and the like and is used for properly cooling the extruder after heating and organizing protein and the like. The extruder 10 is provided with six independent heating plates 11 and a group of cooling medium pipelines 12, and the heating temperature of each heating plate can be respectively controlled according to a temperature sensor arranged on the extruder in the process of protein texturing, and if the setting parameters of the extruder 10 can be as follows: the feeding speed is 10-20kg/h, the rotating speed is 100-170r/min, the temperature of a region I formed by six independent heating plates 11 is 20 ℃, the temperature of a region II is 50 ℃, the temperature of a region III is 80 ℃, the temperature of a region IV is 110 ℃, the temperature of a region V is 150 ℃, the temperature of a region VI is 170 ℃, and the temperature of a region VII formed by cooling medium pipelines 12 is 150 ℃; the heating temperature of each stage of protein organization is regulated and controlled to ensure the protein organization effect, and molten organized protein is formed and enters the mixer 14 from the discharge end of the mixer 14, and the mixer 14 is also connected with a plurality of charging barrels 4 with metering pumps 3 through pipelines, so that plant pigments, amino acids, vitamins and other raw materials are added in an auxiliary manner while the molten organized protein sent by the extruder 10 is received, and the quality of the final product is prevented from being influenced by the damage of the raw materials; the outer wall of the body of the blending device 14 can also be provided with a heating resistance wire (not shown), the resistance wire is electrified while stirring, and the raw materials are insulated; and after the mixing and stirring work is carried out in the plant protein meat, the plant protein meat is output to the subsequent working procedures so as to finally obtain the production of the plant protein meat.

The stirrer 8 and the blending device 14 in the embodiment are both provided with a stirring shaft 7 with a second driving motor 6, the stirring shaft 7 comprises a plurality of transverse stirring rods 7a and a plurality of spiral stirring blades 7b, the transverse stirring rods are arranged in parallel, and the spiral stirring blades are arranged between the adjacent transverse stirring rods. This (mixing) shaft structure can realize carrying out abundant mixing to the raw materials. The second driving motor 6 adopts a speed regulating motor, and can regulate the rotating speed or rotation of the stirring shaft 7 so as to ensure that the raw materials are fully mixed.

In the extruder 10 of the present embodiment, a co-rotating twin screw 15 is provided, two sets of kneading blocks 15a with an included angle of 45 ° are provided on the co-rotating twin screw 15, and a single screw is provided with a four-stage screw structure, a first-stage screw 15b is a single-start variable-pitch screw, a second-stage screw 15c is a single-start co-pitch screw, a third-stage screw 15d is a double-start screw, and a fourth-stage screw 15e is a reverse double-start screw. Like this, become the helical pitch screw rod and have good mixed transport and compression effect, knead and close piece and double thread and can provide bigger shearing force, reverse thread is used for providing highly compressed shearing environment, through the cooperation of screw thread, can fine improvement organize the effect.

In this embodiment, a reduction gearbox 2 is disposed between an extruder 10 and a driving motor 1, the reduction gearbox 2 is a five-axis co-directional transmission gearbox, and is composed of a box body, and an input shaft 2a, a transmission shaft 2c, and an output shaft 2d disposed in the box body, the transmission shafts 2c and the output shafts 2d are both provided with two numbers and are symmetrically arranged relative to the input shaft 2a, a driving gear 2b disposed on the input shaft 2a is engaged with and transmitted to transmission large gears 2g disposed on the two transmission shafts 2c, transmission small gears 2f disposed on the two transmission shafts 2c are engaged with and transmitted to driven gears 2e disposed on the two output shafts 2d, and the two output shafts 2d are respectively and correspondingly connected to co-directional engaging twin screws 15 of the extruder 10.

By adopting the scheme, the raw materials can be mixed and stirred in batches after the pretreatment device 100 is combined with the mixing device 200, and the specific working process is as follows: part of the high temperature resistant raw materials are mixed and stirred in the stirrer 8, then are fed into the extruder 10 to be subjected to high temperature and high pressure shearing extrusion, are conveyed into the blending device 14 under the action of axial force of the co-rotating meshed twin screws, are added again into the blending device 14 to be sufficiently stirred and mixed, and are conveyed into the 3D printing device 300. Thus, the raw materials adopt a multi-stage mixing structure in the pretreatment stage, so that part of the raw materials can not be damaged due to the high-temperature, high-pressure and high-shear environment in the organization stage, thereby effectively solving the problem of part of substances in the protein organization process, realizing continuous feeding and saving manpower and material resources; meanwhile, the double-screw extruder is beneficial to the protein texturizing effect.

The extruder 20 of the 3D printing device 300 in this embodiment includes a stock bin 18, a transmission assembly 17 and a third driving motor 16, a counter-rotating meshed twin screw 19 is installed in the stock bin 18, the counter-rotating meshed twin screw 19 is connected with the third driving motor 16 through the transmission assembly 17, the transmission assembly 17 is composed of a bearing seat 17a, a rotating shaft 17b and bevel gears 17c, the rotating shaft 17b is connected with an output end of the third driving motor 16, two symmetrical bevel gears 17c are arranged on the rotating shaft 17b, the same side ends of the counter-rotating meshed twin screws 19 are respectively provided with matched bevel gears which are respectively meshed with the two bevel gears 17c arranged on the rotating shaft 17b for transmission, the stock bin 18 is provided with a feeding pipe 22 and a discharging pipe 23, and a printing nozzle 24 is flexibly connected with the discharging pipe 23. Thus, the organized protein material in the blending device 14 is received by the feeding pipe 22 and enters the storage bin 18, and after stirring and extrusion are carried out by the counter-rotating meshed twin screw 19, the raw materials are extruded and pushed to have further mixing effect at the same time, and then the raw materials are conveyed to the printing spray head 24 from the discharging pipe 23 to be matched with the printing spray head 24 to carry out the forming and manufacturing of the plant protein meat.

In this embodiment, be equipped with electric heating wire on the feed bin 18 for stirring material to in the feed bin 18 heats up, and electric heating wire still with control platform 33's program controller electric connection, be used for the control of each part temperature. Of course, in different embodiments of the tube, the electric heating wire may be replaced by an electric heating sheet. In addition, the outer pipe walls of the feeding pipe 22 and the discharging pipe 23 are also provided with a heat preservation assembly (not shown), and the heat preservation assembly is connected with the program controller, so that the temperature of the raw materials in the pipeline is stable, the effect of finished products is ensured, and the product quality is improved. The discharge pipe 23 is a high temperature resistant soft pipe, so that the discharge pipe can move along with a printing nozzle connected to the outlet to generate position change, namely the extruder 20 can be fixed by adjusting the length of the discharge pipe, and only the printing nozzle 24 is moved; it is of course also possible to connect the print head 24 directly to the extruder 20, to move it. And the feeding pipe 22 adopts a high-temperature resistant hard pipe or a metal pipe. Thus, the heat transfer performance is good, and the temperature control is convenient.

In this embodiment, the magazine 18 is mounted on the base 21 to facilitate fixed mounting of the magazine, and the rotating shaft 17b is also disposed on the base 21 through the bearing seats 17a at both ends thereof to facilitate mounting, and similarly, the third driving motor 16 may also be mounted on the base 21 to optimize mounting. The storage bin 18 is composed of an upper cover and a lower box body, and the contact position of the upper cover and the lower box body is provided with a clamping structure of a convex rib and a groove (not marked), which is beneficial to installation and sealing. Like this, when receiving the electric heating piece heating, protruding muscle and recess are laminated in the part each other and are located the protruding muscle of upper cover and are closer to the heat source, are influenced by expend with heat and contract with cold effect, and the expansion volume is great, in addition the bolt and nut between lid and the lower box is connected to this makes upper cover and lower box laminating inseparabler, and the leak protection effect is better. In addition, the inside top structure (not marked) that is equipped with of lower box for carry out axial positioning to the incorgruous meshing twin-screw, extrude more stably during messenger's operation. The inner wall of the bin is tightly attached to the screw threads, and a small gap is reserved between screw grooves of the heterodromous meshed twin screws, so that the forward conveying characteristic can be achieved. In addition, still can set up temperature sensor on the lower box of feed bin, when temperature sensor detected that raw materials temperature is less than required printing temperature, electric heating piece began to work and generates heat, if be higher than suitable temperature range, the stop heating.

In this embodiment, the counter-rotating meshed twin-screw 19 includes a left-handed screw and a right-handed screw, both of which have a section of polish rod at the same end, and the rest of which are screws, and a bevel gear mating with a bevel gear 17c disposed on a rotating shaft 17b is designed at the head of the polish rod, and the bevel gear mating with the screws are of an integral structure, and the parameters of the bevel gears at the heads of the counter-rotating meshed twin-screw are the same, the height and the size are the same, the structural parameters of the spiral part are the same, the thread on the left-handed screw is left-handed, and the thread on the right-handed screw is right-handed.

In the embodiment, the print head 24 is a coaxial dual-nozzle structure, and is provided with a gel channel 25, a shower type extrusion plate 26, an annular cooling pipe 29 and a temperature sensor 30, the shower type extrusion plate 26 is detachably mounted on the print head 24 through a threaded clamp 27, and the gel channel 25 is provided with a glue outlet 28 coaxial with a through hole of the shower type extrusion plate 26. The annular cooling tube 29 is located at the first stage of the print head, the temperature is controlled and fed back by the temperature sensor 30 in a circulating water condensation mode, so that the temperature is monitored, and a switch bin door (not identified) for overhauling and replacing the annular cooling tube is further installed on the body of the print head 24. The annular cooling pipe 29 can be set to the temperature to be controlled by opening the opening and closing bin door, and a temperature sensor is arranged in the annular cooling pipe for controlling the temperature. Gondola water faucet formula extrusion plate 26 is located the first stage of printing shower nozzle 24, is equipped with gondola water faucet formula extrusion plate 26 behind the annular cooling tube 29 promptly, and gondola water faucet formula extrusion plate 26 is fixed with printing for the shower nozzle screw thread bail 27, can change different gondola water faucet formula extrusion plate 26 models to change the size of through-hole on the gondola water faucet formula extrusion plate 26. The shower type extrusion plate 26 extrudes plant meat passing through the stock bin 18 into filaments and extrudes the plant meat in a shower form, and the diameter of a through hole in the shower type extrusion plate 26 can be changed by changing the plate. The number of the glue outlet holes 28 can be set to be three to eight according to requirements, so that the gel can be connected with the gel channel 25 on the printing spray head 24 through the conveying pipe and flows out through the glue outlet holes 28 surrounding the through holes formed in the shower head type extrusion plate, and the adhesion between the shredded meat is ensured to be tight in the printing process.

In this embodiment, the 3D printing apparatus further includes a console 33, a chassis, a coordinate moving mechanism 31 and a forming platform 32, the chassis encloses the coordinate moving mechanism 31 and the extruder to ensure the sealing performance during the printing and forming process of the vegetable protein meat, a door of the switch is disposed on a side surface of the chassis, the coordinate moving mechanism 31 is composed of a mounting rack 31a, an X-axis traverse component 31b, a Z-axis lifting component 31c, a Y-axis translation component 31D and a support 31e, wherein the forming platform 32, the Z-axis lifting component 31c and the Y-axis translation component 31D are disposed on the support 31e, the X-axis traverse component 31b is disposed on the Z-axis lifting component 31c, the mounting rack 31a is disposed on the X-axis traverse component 31b, the printing nozzle 24 is disposed on the mounting rack 31a, and the Y-axis translation component 31D acts on the forming platform 32. The X-axis transverse moving assembly 31b and the Z-axis lifting assembly 31c both adopt a lead screw transmission pair, and the Y-axis transverse moving assembly 31d adopts a rack-and-pinion or belt transmission structure. Still be provided with the refrigerator on the shaping platform 32, on the shaping platform was fallen to the material, the refrigerator started, and through last aperture of shaping platform carried air conditioning to the upper surface, realized the rapid cooling on shaping platform surface, shortened finished product shaping time, improved production efficiency greatly. The chassis is provided with a console 33, and a program controller in the console 33 is used for electrically connecting all electric control elements, such as a driving motor, a heat preservation assembly, an electric heating plate, a temperature sensor, a refrigerator and the like. In this way, through the cooperation of the X-axis traversing assembly 31b and the Z-axis lifting assembly 31c, the printing nozzle 24 arranged on the mounting frame 31a can move in the X direction and the Z direction relative to the forming platform 32, and through the Y-axis translating assembly 31D, the forming platform 32 can move in the Y direction relative to the printing nozzle, that is, the printing nozzle 24 can complete the Y-direction movement relative to the forming platform 32, so that the printing nozzle 24 can complete the 3D printing and forming of the plant protein meat.

By adopting the scheme, the 3D printing device 300 can mix and rough process the raw materials again and perform 3D printing and forming. The specific working process is as follows: the raw materials are conveyed to a feeding pipe 22 by a mixer 14, enter a storage bin 18 of an extruder 20 through the feeding pipe 22 under the spontaneous flowing trend of the raw materials, and when power is supplied to a third driving motor 16, a rotating shaft 17b and a bevel gear 17c of a transmission assembly are driven to rotate, so that a counter-rotating meshed twin screw 19 is driven to rotate at the same speed and at the same torque in the counter-rotating direction, and the raw materials are provided with better shearing force and extrusion at the meshing position, so that the raw materials entering the extruder are conveyed to a discharging pipe 23 under the axial force of the extrusion of the screw rod, and then are conveyed to a printing nozzle 24 through the discharging pipe 23; after the raw material enters the printing nozzle 24 through the discharge pipe 23, the raw material is firstly cooled by the first stage, i.e. the annular cooling pipe 29, and then is extruded to the forming platform 32 through the shower head type extrusion plate 26, so that the protein fibrosis process is realized. Like this, this printing device adopts the incorgruous meshing twin-screw of symmetry to extrude the feed structure, makes plant protein meat 3D print the process and realizes lasting feed, has increased the speed of feed, has improved feed stability, is provided with temperature control system simultaneously, need adjust according to required raw materials actual temperature before the use, guarantees that raw materials temperature remains stable at the printing in-process, improves product quality. In order to ensure that the pasty mixture can smoothly complete the fiberization process, the printing nozzle is respectively provided with an annular cooling pipe and a shower head type extrusion plate in the first stage and the second stage, the temperature of the annular cooling pipe can be set, and the shower head type extrusion plate can be replaced to change the aperture size on the plate, so that printing can be carried out according to different raw material formulas; still be equipped with the gel passageway at the second stage of printing the shower nozzle, the gel is finally sprayed through the play gluey hole of printing shower nozzle bottom and is extruded to ensure that the adhesion of extrusion in-process product tissue is inseparable, finally improve the quality of product.

The plant protein meat production method related to the plant protein meat multiple fiber forming manufacturing equipment comprises the following steps:

(1) Preparing a vegetable protein solution:

according to the weight portion, 10 to 20 portions of soybean protein concentrate and 5 to 15 portions of soybean protein isolate are dissolved in water and stirred and mixed evenly to obtain vegetable protein solution;

(2) Preparation of carbohydrate solution:

dissolving 3-5 parts by weight of cellulose and 3-5 parts by weight of potato starch in water, and uniformly mixing to obtain a carbohydrate solution; wherein the cellulose comprises one or more of methylcellulose, sodium alginate and gelatin;

(3) Preparing a flavor pigment solution:

according to the weight portion, 1 to 3 portions of yeast extract, 1 to 3 portions of onion powder, 1 to 2 portions of garlic powder, 0.1 to 0.5 portion of colorant, 0.3 to 0.5 portion of salt and 0.1 to 0.3 portion of sugar are dissolved in water and evenly stirred; wherein the colorant comprises one of soybean hemoglobin, beet juice pigment, and caramel pigment;

(4) Preparing plant protein slurry:

adding 4-6 parts of lipid into the vegetable protein solution obtained in the step (1) according to the mass fraction, and uniformly stirring the mixture by a stirrer 8 of a pretreatment device 100 at a rotating speed of 180-200r/min to obtain vegetable protein slurry;

(5) Heating, pressurizing and shearing plant protein meat:

adding the plant protein slurry obtained by stirring in the step (4) and water into an extruder 10 of a pretreatment device 100, and carrying out heating, pressurizing and shearing treatment on the plant protein to obtain molten plant protein slurry; controlling the feeding speed of the extruder 10 in the heating, pressurizing and shearing treatment to be 10-20kg/h, the rotating speed to be 100-170r/min, the temperature of a zone I to be 20 ℃, the temperature of a zone II to be 50 ℃, the temperature of a zone III to be 80 ℃, the temperature of a zone IV to be 110 ℃, the temperature of a zone V to be 150 ℃, the temperature of a zone VI to be 170 ℃ and the temperature of a zone VII to be 150 ℃;

(6) B, plant protein meat tempering:

uniformly stirring the carbohydrate solution and the flavor pigment solution through a mixer 14 of a mixing device 200 at a rotating speed of 160-180r/min to obtain a modified solution; then adding the obtained modified solution into molten plant protein pulp to carry out modulation treatment on plant protein meat;

(7) Secondary extrusion treatment of the plant protein meat:

sending the molten plant protein slurry added with the conditioning solution in the step (6) into an extruder 20 of a 3D printing device 300 from a blending machine 14 for stirring and shearing; controlling the extruder 20 to operate at a rotation speed of 90-170r/min and a temperature of 110 ℃;

(8) Printing and molding the plant protein meat:

and (3) extruding the plant protein meat subjected to the secondary extrusion treatment in the step (7) to a multi-fiber printing nozzle 24 through a heat insulation pipeline to obtain fibrous plant protein meat, and cooling and stacking the fibrous plant protein meat on a forming platform 32 under the assistance of a coordinate moving mechanism 31.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (10)

1. The utility model provides a plant protein meat multiple fiber shaping manufacturing equipment, a serial communication port, by preprocessing device (100) that connect gradually, mixing arrangement (200), 3D printing device (300) are constituteed, preprocessing device includes agitator (8) and extruder (10), mixing arrangement includes blending machine (14), 3D printing device includes extruder (20) and prints shower nozzle (24), the feed end and the agitator of extruder are connected, the discharge end of extruder passes through the blending machine and is connected with the extruder, the discharge end and the printing shower nozzle of extruder are connected.

2. The plant protein meat multi-fiber forming manufacturing equipment according to claim 1, wherein a feed hopper (9) is arranged at the top of the stirrer, a blanking pipe (5) is arranged at the bottom of the stirrer in a bucket shape, and an electromagnetic valve (5 a) is arranged at the outlet of the blanking pipe; the stirrer and the blending machine are both connected with more than one charging barrel (4) with a metering pump (3) through pipelines.

3. Plant protein meat multiple fiber forming manufacturing equipment according to claim 1, characterized in that a heating plate (11) is arranged on the extruder, a cooling medium pipe (12) is wound on the extruder near the discharge end, and a circulating pump (13) is connected to the cooling medium pipe.

4. The plant protein meat multi-fiber forming manufacturing equipment according to claim 1, wherein the transmission end of the extruder is connected with a first driving motor (1) through a reduction box (2); a homodromous meshed double screw (15) is arranged in the extruder, a kneading block (15 a) is arranged on the homodromous meshed double screw, a single screw is of a four-section type thread structure, a first section of thread (15 b) adopts a single-head variable-lead thread, a second section of thread (15 c) adopts a single-head homodromous thread, a third section of thread (15 d) adopts a double-head thread, and a fourth section of thread (15 e) adopts a reverse double-head thread; the reduction gearbox is a five-axis homodromous transmission gearbox and consists of a box body, an input shaft (2 a), a transmission shaft (2 c) and an output shaft (2 d), wherein the input shaft, the transmission shaft and the output shaft are arranged in the box body, the transmission shaft and the output shaft are symmetrically arranged relative to the input shaft, a driving gear (2 b) arranged on the input shaft is meshed with and drives transmission large gears (2 g) respectively arranged on the two transmission shafts, transmission small gears (2 f) arranged on the two transmission shafts are respectively meshed with and drive driven gears (2 e) arranged on the two output shafts, and the two output shafts are respectively butted with homodromous meshed double screws of the extruder.

5. The plant protein meat multiple fiber forming manufacturing equipment of claim 1, wherein the stirrer and the blending machine are both provided with a stirring shaft (7) with a second driving motor (6), the second driving motor is an adjustable speed motor, the stirring shaft comprises transverse stirring rods (7 a) and spiral stirring blades (7 b), the transverse stirring rods are arranged into a plurality of longitudinal parallel arrangement, and the tail ends of the adjacent transverse stirring rods are connected with the spiral stirring blades.

6. The plant protein meat multiple fiber forming manufacturing equipment according to claim 1, wherein the extruder comprises a bin (18), a transmission assembly (17) and a third driving motor (16), a counter-rotating meshed double screw (19) is arranged in the bin, the counter-rotating meshed double screw is connected with the third driving motor through the transmission assembly, a feeding pipe (22) and a discharging pipe (23) are arranged on the bin, the blending machine is connected with the feeding pipe, the printing nozzle is connected with the discharging pipe, and the third driving motor adopts a speed reducing motor.

7. Plant protein meat multiple fiber profile manufacturing equipment according to claim 6, characterized in that said extruder comprises a base (21) for mounting a silo; the transmission assembly consists of a bearing seat (17 a), a rotating shaft (17 b) and bevel gears (17 c), the rotating shaft is connected with a third driving motor, two symmetrical bevel gears are arranged on the rotating shaft, and matched bevel gears which are respectively in meshing transmission with the two bevel gears arranged on the rotating shaft are arranged at the same side ends of the heterodromous meshing double screws; the rotating shaft is also arranged on the base through bearing seats at two ends of the rotating shaft.

8. The plant protein meat multi-fiber forming manufacturing equipment according to claim 6, wherein the bin is composed of an upper cover and a lower box body, and a clamping structure of a convex rib and a groove is arranged at the contact position of the upper cover and the lower box body; the stock bin is provided with a heating wire; the heat preservation assembly is arranged on the outer pipe wall of the discharging pipe and the feeding pipe, the discharging pipe is a high-temperature-resistant soft pipe, and the feeding pipe is a high-temperature-resistant hard pipe or a metal pipe.

9. The plant protein meat multi-fiber forming manufacturing equipment of claim 1, wherein the printing nozzle is a coaxial double-nozzle structure, a gel channel (25), a shower type extrusion plate (26), an annular cooling pipe (29) and a temperature sensor (30) are arranged on the printing nozzle, the shower type extrusion plate is installed on the printing nozzle through a detachable screw staple (27), a glue outlet (28) coaxial with the through hole of the shower type extrusion plate is arranged on the gel channel, and the annular cooling pipe is located above the shower type extrusion plate.

10. The plant protein meat multi-fiber forming manufacturing equipment as claimed in claim 1, wherein the 3D printing device further comprises a coordinate moving mechanism (31) and a forming platform (32), the coordinate moving mechanism is composed of a mounting frame (31 a), an X-axis transverse moving component (31 b), a Z-axis lifting component (31 c), a Y-axis transverse moving component (31D) and a support (31 e), the forming platform, the Z-axis lifting component and the Y-axis transverse moving component are all arranged on the support, the X-axis transverse moving component is arranged on the Z-axis lifting component, the mounting frame is arranged on the X-axis transverse moving component, the printing nozzle is arranged on the mounting frame, and the Y-axis transverse moving component acts on the forming platform.

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