Salted egg pickling device

Abstract

The invention relates to the technical field of salted egg pickling, in particular to a salted egg pickling device which comprises a box body and a box cover, a heating plate is fixedly installed at the bottom of the interior of the box body, and a supporting hole plate is fixedly installed above the heating plate and used for bearing egg supports of egg products; a stirring paddle is also mounted in the box body and is used for stirring the pickling liquid; a salt concentration sensor and a temperature sensor are further mounted in the box body, the salt concentration sensor is used for detecting the salt concentration of the pickling liquid at different depths in the box body, and the temperature sensor is used for detecting the temperature of the pickling liquid. In the pickling process, the salt concentration sensor is used for detecting the salt concentration of the pickling liquid in the box body, and the pickling liquid is stirred through the stirring paddle based on the detection result, so that the pickling liquid at different depths is uniformly stirred, the salt concentration of the pickling liquid is uniformly and accurately regulated and controlled, and the pickling effect of egg products is guaranteed. Meanwhile, the temperature sensor is matched with the heating plate, so that the temperature of the pickling liquid can be accurately regulated and controlled.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of salted egg pickling, in particular to a salted egg pickling device. BACKGROUND

[0002] Salted eggs have a long history in China. Salted eggs are nutritious and rich in protein, essential amino acids, and various minerals such as calcium, phosphorus, and iron. At the same time, salted eggs have a significant advantage in the market due to their unique flavor, delicious taste, convenience of consumption, and suitability for all ages.

[0003] Currently, the most common method of salted egg processing is the salt water soaking method, which involves placing fresh poultry eggs into a pickling device and injecting a certain concentration of salt water into the pickling device to cover the poultry eggs, allowing the poultry eggs to soak in the salt water. However, since the salted egg industry generally uses plastic barrels for pickling, placing a large number of salted eggs into the barrel at once can easily cause the salted eggs to collide and break, and it is also very inconvenient to remove the salted eggs from the barrel, resulting in low efficiency and high damage rate. In summary, salted egg production still faces challenges such as scale industrialization, automation, and standardization. Salted egg pickling is easily affected by seasonal weather, has a long pickling period, large quality differences, and high breakage rate. The process parameter control level is not high, and a complete automated process has not been formed, making it difficult to meet the large-scale market demand for salted eggs during traditional consumption peaks such as the Dragon Boat Festival and the Mid-Autumn Festival.

[0004] The salted egg pickling device is the core equipment of the salted egg processing technology, and the process parameters such as salt concentration, temperature, and pressure inside the device will affect the pickling period and quality control.

[0005] A salted egg pickling egg barrel is disclosed in Chinese patent (CN222583618U), which has an upward opening. A support ring block is placed on the inner bottom wall of the barrel, and the outer diameter of the support ring block is matched with the inner diameter of the barrel. Two slide rods are arranged on the upper end surface of the support ring block. A water outlet assembly is arranged on the outer end surface of the barrel. A plurality of placement mechanisms are arranged between the two slide rods. The bottom of the lowermost placement mechanism is in contact with the inner bottom wall of the barrel, which can prevent the salted eggs from colliding and breaking during pickling and facilitate the removal of the salted eggs from the barrel.

[0006] Chinese patent (CN217937151U) discloses a kind of laminated salted egg pickling device, specifically including box, the inside both sides of box are symmetrically installed with connecting plate, connecting plate is L-shaped arrangement, the top of box both sides are symmetrically provided with containing groove, connecting plate top is placed in containing groove, and with containing groove sealing connection, connecting plate opposite face are all installed with a pair of guide block at equal intervals, a plurality of pairs of opposing material plates are equidistantly arranged between connecting plates, the two sides of opposing material plate are placed between guide block, and contact with guide block, a plurality of material slots are provided on the top of opposing material plate, and the material slot penetrates the opposing material plate, the temperature of pickling liquid in the box can be detected by temperature sensor, and the detected temperature signal is transmitted to the controller, and the controller controls the refrigeration piece to cool the inside of the box, so that the temperature of the inside of the box reaches the best pickling temperature interval, to improve the use effect.

[0007] Chinese patent (CN213663537U) discloses a kind of salted egg pickling device, including horizontal cylinder and open-close installation in the opening of cylinder cover, cylinder and cylinder cover are PPH cylinder and PPH cylinder cover, cylinder is provided with salt liquid inlet for being connected with liquid supply pipeline and salt liquid outlet for being connected with liquid discharge pipeline, salt liquid outlet is arranged at the bottom of cylinder, the top of cylinder is provided with suction port for being connected with negative pressure air suction pipe, cylinder is further provided with liquid level meter for detecting liquid level in cylinder, temperature sensor for detecting salt liquid temperature in cylinder and pressure gauge for detecting gas pressure of cylinder, pressure gauge is arranged at the top of cylinder and is connected with gas phase in cylinder, cylinder is provided with temperature adjusting structure or liquid supply pipeline is provided with heat exchange device for adjusting salt liquid temperature, the salted egg pickling device uses decompression method to pickle salted egg, parameters can be monitored during pickling process, to reduce pickling time, improve the quality and uniformity of salted egg.

[0008] Chinese patent (CN211091750U) discloses a kind of salted egg pickling device, including pickling box, filter, stirring paddle and pickling net cylinder, one end of pickling box is provided with water injection pipe, and one end of pickling box is also provided with drain pipe, the inner wall of pickling box is bolted with screen, the upper part of screen is placed with pickling net cylinder, the lower side of screen is provided with stirring paddle controlled by driving motor; The inner wall of pickling net cylinder is glued with stop block, and the stop block is provided with a placing net; Two fixed blocks are glued on the outer wall of pickling net cylinder, and screw holes are opened on the fixed blocks, and screw rods are screwed and rotated; Threaded holes are opened on the top of pickling box, and sealing covers are screwed and rotated, eggs are stored in pickling net cylinder, which is convenient for placing and subsequent taking of salted eggs, and the structure is simple and convenient to operate, and the pickling net cylinder and eggs can be easily taken out of the pickling box.

[0009] Although the above technology reduces the pickling time to a certain extent, improves the quality of salted eggs, and reduces the breakage rate, it does not mention the effect of salt concentration stratification of the pickling liquid on the uniformity of the quality of salted eggs, and cannot meet the development needs of modern food processing field such as scale industrialization, automation and standardization. Therefore, further improvement can be made. SUMMARY

[0010] In order to overcome the shortcomings of the prior art, the present application provides a salted egg pickling device to solve the problems in the prior art.

[0011] The salted egg pickling device provided by the present application adopts the following technical solution: A salted egg pickling device, comprising a box body and a box cover, a heating plate is fixedly installed at the bottom of the inside of the box body, a support hole plate is fixedly installed above the heating plate for supporting an egg holder; a stirring paddle is also installed in the box body, the stirring paddle is vertically arranged and installed at the center position for stirring the pickling liquid; at least two salt concentration sensors are installed in the box body in a vertical direction, for real-time detection of the salt concentration gradient of the pickling liquid at different depths in the box body; a temperature sensor is fixedly installed in the box body for monitoring the temperature of the pickling liquid; the salt concentration sensor and the temperature sensor are both signal connected to a control mainboard, the control mainboard controls the start-stop and rotating speed of the stirring paddle based on the salt concentration gradient data, and adjusts the power of the heating plate based on the temperature data.

[0012] By adopting the above technical solution, the egg holder is placed on the support hole plate before pickling, so that the pickling liquid in the box body covers the egg holder for pickling. During the pickling process, the salt concentration of the pickling liquid in the box body is detected by the salt concentration sensor, and based on the detection result, the pickling liquid is stirred by the stirring paddle to uniformly process the pickling liquid at different depths, so as to realize precise control of the uniformization of the salt concentration of the pickling liquid and to ensure the pickling effect of the egg. At the same time, the temperature sensor and the heating plate are used in cooperation to realize precise control of the temperature of the pickling liquid.

[0013] Optionally, the blades in the stirring paddle gradually increase from top to bottom and are of a gradually expanding type.

[0014] By adopting the above technical solution, in the pickling liquid, due to the sedimentation effect, the salt concentration of the lower layer is usually higher than that of the upper layer. At this time, in the process of stirring, the gradually expanding structure of the blades in the stirring paddle can bring the lower layer of the pickling liquid to the upper layer for mixing while stirring, so as to accelerate the uniform mixing of the upper and lower layers of the pickling liquid, and thus greatly improve the efficiency of the uniformization of the salt concentration of the pickling liquid.

[0015] Optionally, the support hole plate separates the inner tank into a pickling area in the upper area and a sedimentation area in the lower area; the stirring paddle comprises an upper paddle part and a lower paddle part, the upper paddle part is used for stirring the pickling area, and the lower paddle part is used for stirring the sedimentation area; the maximum diameter of the blade in the lower paddle part is set as A, the minimum diameter of the blade in the upper paddle part is set as B, and 1.5B < A < 2.5B.

[0016] By adopting the technical scheme, due to the sedimentation effect, the salt concentration of the pickling liquid in the sedimentation area is greatly different from that of the pickling area, and after sedimentation, the pickling liquid is mainly concentrated in the sedimentation area. Therefore, when stirring, the stirring intensity of the sedimentation area needs to be increased. Therefore, in the application, the stirring paddle is divided into an upper paddle part and a lower paddle part, and the large blade in the lower paddle part is used to realize large stirring intensity, so as to ensure large stirring intensity of the sedimentation area during stirring. At the same time, the stirring intensity required in the pickling area is relatively small compared with the sedimentation area, so the blade in the upper paddle part can be small, so as to reserve more pickling space for placing more egg products in the pickling area for pickling, so as to ensure large pickling capacity.

[0017] Optionally, the bottom of the stirring paddle is rotatably supported in the bottom of the tank, a driving motor is fixedly installed on the tank cover, a motor shaft of the driving motor is connected with the top of the stirring paddle, and the driving motor is used to drive the stirring paddle to rotate, and when the stirring is stopped and the tank cover is opened, a pluggable state is formed between the driving motor and the stirring paddle.

[0018] Optionally, the bottom of the stirring paddle and the tank are rotatably connected through a rotating shaft and a first rotating hole, a first connecting key is formed on the outer wall of the rotating shaft in the circumferential direction, a first key groove matched with the first connecting key is formed in the first rotating hole, and the first connecting key is lower than the top of the rotating shaft; the top of the stirring paddle and the tank cover are rotatably connected through the motor shaft of the driving motor and a second rotating hole, a second connecting key is fixedly arranged on the motor shaft of the driving motor, a second key groove for pluggable connection of the second connecting key is formed in the second rotating hole; a first magnet is further embedded and fixed in the motor shaft of the driving motor, and a second magnet is embedded and fixed in the hole bottom of the second rotating hole.

[0019] By adopting the above technical scheme, before the box cover is closed, the stirring paddle is in a falling state, at this time, the first key groove at the bottom of the stirring paddle is aligned and inserted with the first connecting key in the bottom shaft of the box body, so that the stirring paddle is positioned and kept stationary. After the box cover is closed, the motor shaft of the driving motor is inserted into the second rotating hole, and the second connecting key on the motor shaft of the driving motor is aligned and inserted with the second key groove in the second rotating hole. Then the first magnet and the second magnet are attracted to attract the stirring paddle upward, at this time the stirring paddle is in an attracted state, the first key groove in the stirring paddle is separated from the first connecting key in the bottom shaft of the box body, and the bottom of the stirring paddle is rotatably connected with the box body through the rotating shaft and the first rotating hole. Under the subsequent driving of the driving motor, the stirring paddle can be driven to rotate and stir. The driving motor is set as the starting zero point before the box cover is closed, and after each stirring is completed, the driving motor is controlled to return to the starting zero point position, at this time, after the stirring is stopped, the first key groove in the stirring paddle returns to the original position aligned with the first connecting key, after the box cover is opened, the suction force is lost, and the stirring paddle falls back to the falling state, at this time, the first key groove at the bottom of the stirring paddle is connected with the first connecting key in the bottom shaft of the box body to wait for the next closing cover pickling operation.

[0020] Optionally, the second connecting key and the second key groove are in a fan shape, a third key groove is further formed in the second rotating hole, the third key groove is in a fan shape aligned with the second key groove, the third key groove is below the second key groove, the third key groove is in communication with the second key groove, and one end of the third key groove is aligned with the second key groove, and the other end of the third key groove is larger than the second key groove.

[0021] By adopting the above technical scheme, after the stirring paddle is attracted, the second connecting key on the motor shaft of the driving motor enters the third key groove after passing through the second key groove downward, the driving motor is initially rotated by a set angle to adjust the second connecting key to the other end along the third key groove, and then the stirring paddle is driven to rotate to perform the stirring work. Similarly, after the stirring is completed, the driving motor is reversely rotated by a set angle to adjust the second connecting key to the other end along the third key groove to align with the second key groove, so that the second connecting key is pulled out upward after passing through the second key groove during the opening of the box cover, and the motor shaft and the stirring paddle are separated during the opening of the box cover. Through the setting of the third key groove, during the driving and stirring of the stirring paddle after being attracted, the second connecting key is clamped in the third key groove, and the motor shaft of the driving motor and the stirring paddle are not easy to be separated, which can further guarantee the connection reliability between the motor shaft of the driving motor and the stirring paddle.

[0022] Optionally, the box body is in a square box shape.

[0023] By adopting the above technical scheme, the box body is designed in a square box shape, which can be matched with the existing standard square egg tray.

[0024] Optionally, one side of the box body is provided with a turnover machine lock.

[0025] By adopting the above technical scheme, the turnover machine lock is arranged on one side of the box body, which is used for connecting the square box body with the automatic turnover machine, so as to facilitate the safe replacement of the pickling liquid in the box body.

[0026] Optionally, the bottom of the box body is provided with an AGV forklift port.

[0027] By adopting the above technical scheme, the AGV forklift port is arranged at the bottom of the box body, which is used for realizing accurate positioning and safe automatic transportation of the pickling device.

[0028] In summary, the present application has at least one of the following beneficial technical effects: 1. During the pickling process, the salt concentration sensor is used to detect the salt concentration of the pickling liquid in the box body, and based on the detection result, the stirring paddle is used to stir the pickling liquid to uniformly process the pickling liquid at different depths, so as to realize precise control of the uniformity of the salt concentration of the pickling liquid and ensure the pickling effect of the eggs. At the same time, the temperature sensor and the heating plate are used to realize precise control of the temperature of the pickling liquid; 2. During the stirring process, the gradually expanding structure of the blades in the stirring paddle can bring the lower layer of pickling liquid to the upper layer for mixing while stirring, which can accelerate the mixing of the upper and lower layers of pickling liquid, thereby greatly improving the efficiency of the uniformity of the salt concentration of the pickling liquid; 3. In the present application, the stirring paddle is divided into an upper paddle part and a lower paddle part, and the large blades in the lower paddle part are used to realize large stirring intensity to ensure large stirring intensity in the sedimentation area during stirring. At the same time, the stirring intensity required in the pickling area is relatively small compared with that in the sedimentation area, so the blades in the upper paddle part can be small to reserve more pickling space for placing more eggs for pickling in the pickling area, thereby ensuring a large pickling capacity. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structure schematic view of the salted egg pickling device in the closed box cover state.

[0030] Figure 2 is a structure schematic view of the salted egg pickling device in the open box cover state.

[0031] Figure 3 is a cross-sectional view of the salted egg pickling device after closing the box cover and removing the egg holder.

[0032] Figure 4 is a top view of the box body part in the present application.

[0033] Figure 5 is a perspective view of Figure 4 .

[0034] Figure 6 is the control logic flow chart of the pickling temperature control in the present application.

[0035] Figure 7 is the control logic flow chart of the pickling salt concentration control in the present application.

[0036] Figure 8 is the exploded view of the stirring paddle and the driving motor and the rotating shaft in the present application.

[0037] Figure 9 is an enlarged view of part A in Figure 3 .

[0038] Figure 10 is an enlarged view of part B in Figure 3 .

[0039] Figure 11 is the sectional view of the top part of the stirring paddle in the present application.

[0040] Figure 12 is the bottom view of the box part in the present application.

[0041] BRIEF DESCRIPTION OF DRAWINGS 1, box; 11, pickling area; 12, sedimentation area; 13, box turning machine lock; 14, AGV forklift opening; 2, box cover; 21, box cover fork lug; 22, shaft seat; 23, bearing; 24, pressing plate; 25, clamping block; 26, motor mounting plate; 27, motor cover plate; 28, sealing ring; 3, heating plate; 4, support hole plate; 5, stirring paddle; 51, upper paddle part; 52, lower paddle part; 6, driving motor; 71, rotating shaft; 72, first rotating hole; 73, first connecting key; 74, first key groove; 81, motor shaft; 82, second rotating hole; 83, second connecting key; 84, second key groove; 85, first magnet; 86, second magnet; 87, third key groove; 9, salt concentration sensor; 10, temperature sensor; 20, control mainboard; 100, egg product egg holder. DETAILED DESCRIPTION

[0042] The present application will be further described in detail below in combination with the accompanying drawings. Figures 1-12 The present application will be further described in detail below in combination with the accompanying drawings.

[0043] The present application discloses a salted egg pickling device.

[0044] Reference is made to Figure 1 , Figure 2 and Figure 3The utility model provides a kind of salted egg pickling device, including box 1 and box cover 2;Wherein, the inside bottom of box 1 is fixedly installed with heating plate 3, and the upper of heating plate 3 is fixedly installed with support hole plate 4, for supporting egg product egg holder 100.Support hole plate 4 separates the inside of box 1 into upper area pickling area 11 and lower area sedimentation area 12.It is also installed with stirring paddle 5 in the inside of box 1, and stirring paddle 5 is vertically arranged and is installed in central position, for stirring pickling liquid.At least two salt concentration sensors 9 are installed in the inside of box 1 along vertical direction, for detecting the salt concentration gradient of pickling liquid of different depth in the inside of box 1 in real time;Temperature sensor 10 is fixedly installed in the inside of box 1, for monitoring pickling liquid temperature;Salt concentration sensor 9 and temperature sensor 10 are all signal connected to control mainboard 20, and control mainboard 20 controls the start-stop and rotating speed of stirring paddle 5 based on salt concentration gradient data, and controls the power of heating plate 3 based on temperature data.

[0045] Before pickling, egg product egg holder 100 is placed on support hole plate 4, so that pickling liquid in the inside of box 1 is over egg product to carry out pickling.During pickling process, under the control of control mainboard 20, the salt concentration of pickling liquid in the inside of box 1 is detected using salt concentration sensor 9, based on the detection result, pickling liquid is stirred using stirring paddle 5 to evenly process pickling liquid of different depth, to realize the accurate regulation and control of the uniformization of pickling liquid salt concentration, to guarantee the pickling effect of egg product.Meanwhile, temperature sensor 10 and heating plate 3 are used to cooperate, to realize the accurate regulation and control of pickling liquid temperature.

[0046] Refer to Figure 1 In the embodiment, control mainboard 20 is installed on the outside of box 1, and is embeddedly fixedly installed in the side wall of box.

[0047] Refer to Figure 4 And Figure 5 Among them, temperature sensor 10 is two groups, and the first group is three, which is uniformly spaced along the vertical direction;The second group is one, and it is aligned with the middle one of the first group.In the embodiment, temperature sensor 10 adopts PT100 platinum resistance temperature probe, and the accuracy is ±1℃.

[0048] Refer to Figure 6 When working, set the temperature setting value K0 of pickling.Set the readings of the first group and the second group of temperature sensor 10, and calculate the average value of the first group of temperature sensor 10, and the average value of the first group of temperature sensor 10 and the reading of the second group of temperature sensor 10 are recorded as K1 and K2 respectively.When K1<(K0-1)℃ and K2<(K0-1)℃, control mainboard 20 controls heating plate 3 to heat, and when K1>(K0+1)℃ and K2>(K0+1)℃, stop heating.

[0049] In the present application, K0 is 25℃, that is, when K1<24℃ and K2<24℃, the main control board 20 controls the heating plate 3 to heat, and when K1>26℃ and K2>26℃, the heating is stopped.

[0050] Referring to Figure 4 and Figure 5 In the present application, the salt concentration sensor 9 is divided into two groups, and the two groups of salt concentration sensors 9 are arranged opposite to each other, and the first group has three, which are uniformly spaced vertically; the second group has one, which is aligned with the middle one of the first group. And the salt concentration sensor 9 and the temperature sensor 10 are arranged on different sides, and are arranged in a cross shape. In the present embodiment, the salt concentration sensor 9 is an electrode type, which is a contact type measurement, usually with high precision, suitable for food processing, laboratory and other scenes with high precision requirements, relatively clean medium or maintainable scenes. The protection level and the material are selected to be IP65 and above protection level and corrosion resistant material PPS sensor. The range is selected to be 0-30%, covering all possible ranges from pure water to supersaturated brine, with an accuracy of ±0.5%.

[0051] Referring to Figure 7 In operation, the salt concentration set value S0 is set. The readings of the first group and the second group of salt concentration sensors 9 are obtained respectively, and the average value of the first group of salt concentration sensors 9 is calculated, and the average value of the first group of salt concentration sensors 9 and the reading of the second group of salt concentration sensors 9 are recorded as S1 and S2 respectively. When the absolute value of the difference between the two is |S1-S2|>0.5%, the main control board 20 controls the driving point 6 to drive the stirring paddle 5 to stir, and when the absolute value of the difference between the two is |S1-S2|<0.1%, the stirring is stopped.

[0052] In the present application, the salt concentration set value S0 is 25%.

[0053] The vertical distribution of the multi-point salt concentration sensor 9 monitors the salt concentration stratification in real time, and the directional disturbance of the gradually expanding stirring paddle 5 makes the salt concentration homogenization time in the tank shorten by more than 40%. If there is no disturbance, the salt concentration homogenization cannot be realized, and only the stratification will become more and more obvious. The PID closed-loop control of the temperature sensor 10 and the heating plate 3 controls the brine temperature fluctuation, and significantly improves the consistency of the salted egg quality.

[0054] Referring to Figure 3 In the present embodiment, the blades in the stirring paddle 5 increase continuously from top to bottom and are gradually expanded.

[0055] The stirring paddle 5 comprises an upper paddle part 51 and a lower paddle part 52, the upper paddle part 51 is used for stirring the pickling area 11, and the lower paddle part 52 is used for stirring the sedimentation area 12. The maximum diameter of the blade in the lower paddle part 52 is set as A, and the minimum diameter of the blade in the upper paddle part 51 is set as B, then 1.5.B<A<2.5.B, preferably A=2B. Correspondingly, the middle part of the support hole plate 4 is provided with an opening, and the opening is larger than the blade in the upper paddle part 51, and the opening is smaller than the blade in the lower paddle part 52.

[0056] In the pickling liquid, due to the sedimentation effect, the salt concentration of the lower layer is generally higher than that of the upper layer. At this time, in the stirring process, the gradually expanding structure of the blade in the stirring paddle 5 can bring the lower layer of the pickling liquid to the upper layer for mixing while stirring, accelerate the mixing of the upper and lower layers of the pickling liquid, and further greatly improve the efficiency of the uniformization of the salt concentration of the pickling liquid.

[0057] In particular, due to the sedimentation effect, the salt concentration of the pickling liquid in the sedimentation area 12 is quite different from that of the pickling area 11, and after sedimentation, it is mainly concentrated in the sedimentation area 12. Therefore, during the stirring process, the stirring intensity of the sedimentation area 12 needs to be increased. Therefore, in the present application, the stirring paddle 5 is divided into an upper paddle part 51 and a lower paddle part 52, and the large blade in the lower paddle part 52 is used to realize large stirring intensity to ensure large stirring intensity of the sedimentation area 12 during stirring. At the same time, in the pickling area 11, the stirring intensity requirement is relatively small compared with the sedimentation area 12, so the blade in the upper paddle part 51 can be small to reserve more pickling space for placing more egg products in the pickling area 11 for pickling to ensure a large pickling amount.

[0058] Referring to Figure 3 In the present embodiment, the bottom of the stirring paddle 5 is rotatably supported in the bottom of the box body 1, and the driving motor 6 is fixedly installed on the box cover 2. The motor shaft 81 of the driving motor 6 is connected with the top of the stirring paddle 5, which is used to drive the stirring paddle 5 to rotate, and when the stirring is stopped and the box cover 2 is opened, the driving motor 6 and the stirring paddle 5 form a pluggable state.

[0059] Referring to Figure 3 , 8, 9, specifically, the bottom of the stirring paddle 5 and the box 1 are rotatably connected through the rotating shaft 71 and the first rotating hole 72, wherein the rotating shaft 71 is fixedly arranged in the middle of the bottom of the box 1, and the first rotating hole 72 is arranged in the middle of the bottom of the stirring paddle 5. The outer wall of the rotating shaft 71 is circumferentially formed with a first connecting key 73, and correspondingly, the first rotating hole 72 is formed with a first key groove 74 adapted for connection, and the first connecting key 73 is lower than the top of the rotating shaft 71. In this embodiment, the first connecting key 73 is circumferentially arranged around the rotating shaft 71, and correspondingly, the first key groove 74 is circumferentially arranged around the first rotating hole 72, and the first key groove 74 is connected with the first connecting key 73 one by one. Preferably, the first connecting key 73 is four.

[0060] In this application, the bottom of the rotating shaft 71 and the box 1 are cross-plugged.

[0061] Referring to Figure 3 , 8 , 10, specifically, the top of the stirring paddle 5 and the box cover 2 are rotatably connected through the motor shaft 81 of the driving motor 6 and the second rotating hole 82, wherein the driving motor 6 is fixedly installed downward on the bottom of the box cover 2, and the motor shaft 81 of the driving motor 6 penetrates out of the box cover 2 downward, and the second rotating hole 82 is arranged on the top of the stirring paddle 5. The motor shaft 81 of the driving motor 6 is fixedly provided with a second connecting key 83, and correspondingly, the second rotating hole 82 is formed with a second key groove 84 for plug-in connection of the second connecting key 83. The motor shaft 81 of the driving motor 6 is further embedded with a first magnet 85, and the hole bottom of the second rotating hole 82 is embedded with a second magnet 86.

[0062] Before the box cover 2 is closed, the stirring paddle 5 is in a falling state, at this time, the first key groove 74 at the bottom of the stirring paddle 5 is aligned and inserted with the first connecting key 73 in the bottom rotating shaft 71 of the box body 1, so that the stirring paddle 5 is positioned and kept stationary. After the box cover 2 is closed, the motor shaft 81 of the driving motor 6 is inserted into the second rotating hole 82, and the second connecting key 83 on the motor shaft 81 of the driving motor 6 is aligned and inserted with the second key groove 84 in the second rotating hole 82. Then the first magnet 85 and the second magnet 86 are used to attract the stirring paddle 5 upward, at this time the stirring paddle 5 is in an attracted state, the first key groove 74 in the stirring paddle 5 is separated from the first connecting key 73 in the bottom rotating shaft 71 of the box body 1, and the bottom of the stirring paddle 5 is connected with the box body 1 through the rotating shaft 71 and the first rotating hole 72. Under the subsequent driving of the driving motor 6, the stirring paddle 5 can be driven to rotate and stir. The driving motor 6 is set as the starting zero point before the box cover 2 is closed, and after each stirring is completed, the driving motor 6 is controlled to return to the starting zero point position, at this time, after the stirring is stopped, the first key groove 74 in the stirring paddle 5 returns to the original position aligned with the first connecting key 73, after the box cover 2 is opened, the attraction force is lost, the stirring paddle 5 falls back to the falling state, at this time, the first key groove 74 at the bottom of the stirring paddle 5 is connected with the first connecting key 73 in the bottom rotating shaft 71 of the box body 1, waiting for the next closing cover pickling operation.

[0063] Referring to Figure 8 , 11 In the embodiment, the second connecting key 83 is in a fan shape, and the second key groove 84 is correspondingly in a fan shape. The third key groove 87 is further formed in the second rotating hole 82, the third key groove 87 is in a fan shape aligned with the second key groove 84, the third key groove 87 is below the second key groove 84, the third key groove 87 is in communication with the second key groove 84, one end of the third key groove 87 is aligned with the second key groove 84, and the other end of the third key groove 87 is larger than the second key groove 84. Preferably, in the embodiment, the second connecting key 83 and the second key groove 84 are each 1 / 4 of a whole circular arc, and the third key groove 87 is 7 / 12 of a whole circular arc.

[0064] After the stirring paddle 5 is attracted, the second connecting key 83 on the motor shaft 81 of the driving motor 6 enters the third key groove 87 after passing through the second key groove 84 downward, the driving motor 6 is first rotated by a set angle to adjust the second connecting key 83 to the other end along the third key groove 87, and then the stirring paddle 5 is driven to rotate to perform the stirring work. Similarly, after the stirring is completed, the driving motor 6 is reversely rotated by a set angle to adjust the second connecting key 83 to the other end along the third key groove 87 to be aligned with the second key groove 84, so that the second connecting key 83 passes through the second key groove 84 upward to be separated during the opening of the box cover 2, and the motor shaft 81 and the stirring paddle 5 are separated when the box cover 2 is opened.

[0065] By setting the third key groove 87, during the stirring paddle 5 is sucked up and driven to stir, the second connecting key 83 is clamped in the third key groove 87, the motor shaft 81 of the driving motor 6 is not easy to be separated from the stirring paddle 5, and the connection reliability between the motor shaft 81 of the driving motor 6 and the stirring paddle 5 can be further guaranteed.

[0066] Referring to Figure 3 In the embodiment, the support hole plate 4 is detachably fixedly installed between the box body 1. The middle part of the support hole plate 4 is provided with an opening, which is larger than the upper paddle part 51 in the stirring paddle 5, so as to realize the detachable taking out and installation of the support hole plate 4 and the stirring paddle 5.

[0067] Referring to Figure 2 In the embodiment, the box body 1 is a square box body 1, the box cover 2 is a square box cover 2, and the pickling space in the box body 1 is a square space, which can be matched with the existing standard square egg tray. The box body 1 is provided with a box turning machine lock 13 on one side, which is used for connecting the square box body 1 with the automatic box turning machine, so as to facilitate the safe replacement of the pickling liquid of the box body 1. The box body 1 is provided with an AGV forklift port 14 at the bottom, which is used for realizing the accurate positioning and safe automatic transportation of the pickling device.

[0068] Referring to Figure 2 In the embodiment, the box cover 2 is installed in an upper and lower cover combination manner between the box body 1, and the box cover 2 is further formed with a box cover fork lug 21 on both sides, which is used for opening the box cover 2.

[0069] Referring to Figure 10 The bottom of the box cover 2 is fixedly provided with a shaft seat 22, which is used for rotatably inserting the top of the stirring paddle 5, so as to assist in supporting and positioning the top of the stirring paddle 5 after the box cover 2 is closed, so as to improve the rotation stability of the stirring paddle 5 during stirring.

[0070] The bearing 23 is further embedded and installed in the box cover 2, so as to support the motor shaft 81 of the driving motor 6.

[0071] Referring to Figure 3 The bottom of the box cover 2 is further fixedly provided with a pressing plate 24, which presses the top layer of the egg tray after the box cover 2 is closed, so as to press the eggs to prevent the eggs from shaking and breaking during pickling and stirring, so as to guarantee the pickling and forming quality of the eggs during pickling. In the embodiment, the pressing plate 24 is fixedly installed on the box cover 2 by means of screws.

[0072] Referring to Figure 3 The bottom of the box cover 2 is further fixedly provided with a clamping block 25, which is a square ring, and the clamping block 25 is clamped on the inner wall of the box body 1 after the box cover 2 is closed, so as to position the box cover 2 and the box body 1, and facilitate the actual closing work.

[0073] Referring to Figure 3The top of the box cover 2 is fixedly provided with a motor mounting plate 26, and the driving motor 6 is mounted on the motor mounting plate 26. A motor cover plate 27 is also mounted on the motor mounting plate 26, and an opening is formed in the middle of the motor cover plate 27. After the motor cover plate 27 is mounted, the opening is clamped to the mounting flange of the driving motor 6 to press the motor downward for re-fixing. In this embodiment, the motor mounting plate 26 and the box cover 2 are fixed by screws, the driving motor 6 and the motor mounting plate 26 are fixed by screws, and the motor cover plate 27 and the box cover 2 are fixed by screws to form detachable fixing.

[0074] In this embodiment, the motor mounting plate 26 is made of metal material, which can be an iron plate or the like, and is installed as a counterweight. A sealing ring 28 is also mounted in the motor mounting plate 26 at the motor shaft 81 of the driving motor 6 for sealing treatment.

[0075] Referring to Figure 12 In this embodiment, the bottom of the box body 1 is also optimized for anti-skid. Specifically, the bottom of the box body 1 is formed with a plurality of cylindrical bodies arranged in a planar dot matrix to form a supporting bottom surface, thereby achieving anti-skid optimization.

[0076] The implementation principle of the salted egg pickling device according to the embodiment is as follows: in the pickling process, the salt concentration sensor 9 is used to detect the salt concentration of the pickling liquid in the box body 1, and based on the detection result, the stirring paddle 5 is used to stir the pickling liquid to uniformly stir the pickling liquid at different depths, thereby achieving precise control of the uniform salt concentration of the pickling liquid to ensure the pickling effect of the eggs. Meanwhile, the temperature sensor 10 cooperates with the heating plate 3 to achieve precise control of the temperature of the pickling liquid.

[0077] In this application, it should be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on this application.

[0078] In this application, unless otherwise explicitly specified and limited, the first feature "on" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. The meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0079] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0080] The above are preferred embodiments of the present application, not to limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for pickling salted eggs, characterized by: The utility model provides a kind of egg pickling device, including box (1) and box cover (2), the inside bottom of the box (1) is fixedly installed with heating plate (3), the upper side of the heating plate (3) is fixedly installed with support hole plate (4), for supporting egg product egg holder (100);Stirring paddle (5) is also installed in the box (1), and the stirring paddle (5) is vertically arranged and installed in the center position, for stirring pickling liquid;At least two salt concentration sensors (9) are installed in the box (1) in vertical direction interval, for real-time detection of the salt concentration gradient of pickling liquid at different depths in the box (1);Temperature sensor (10) is fixedly installed in the box (1), for monitoring pickling liquid temperature;The salt concentration sensor (9) and temperature sensor (10) are signal connected to control mainboard (20), the control mainboard (20) controls the start-stop and rotating speed of stirring paddle (5) based on salt concentration gradient data, and adjusts the power of heating plate (3) based on temperature data.

2. The device for pickling salted eggs according to claim 1, wherein: The blades in the stirring paddle (5) gradually increase from top to bottom and are of a gradually expanding type.

3. A device for pickling salted eggs as claimed in claim 2, characterized in that: The support hole plate (4) divides the inside of the box (1) into a pickling area (11) in the upper region and a precipitation area (12) in the lower region;The stirring paddle (5) includes an upper paddle portion (51) and a lower paddle portion (52), the upper paddle portion (51) is used for stirring the pickling area (11), and the lower paddle portion (52) is used for stirring the precipitation area (12);The maximum diameter of the blades in the lower paddle portion (52) is set as A, the minimum diameter of the blades in the upper paddle portion (51) is set as B, and 1.5B 4. The device of claim 1, wherein: The bottom of the stirring paddle (5) is rotatably supported on the bottom of the box (1), a driving motor (6) is fixedly installed on the box cover (2), the motor shaft (81) of the driving motor (6) is connected with the top of the stirring paddle (5), for driving the stirring paddle (5) to rotate, and when the stirring is stopped and the box cover (2) is opened, a pluggable state is formed between the driving motor (6) and the stirring paddle (5).

5. A device for pickling salted eggs as claimed in claim 4, characterized in that: The bottom of the stirring paddle (5) and the box (1) are rotatably connected through a rotating shaft (71) and a first rotating hole (72), a first connecting key (73) is formed on the outer wall of the rotating shaft (71) around the circumference thereof, a first key groove (74) is formed in the first rotating hole (72) and is adaptively connected with the first connecting key (73), and the first connecting key (73) is lower than the top of the rotating shaft (71);The top of the stirring paddle (5) and the box cover (2) are rotatably connected through the motor shaft (81) of the driving motor (6) and a second rotating hole (82), a second connecting key (83) is fixedly arranged on the motor shaft (81) of the driving motor (6), a second key groove (84) is formed in the second rotating hole (82) and is plug-connectingly connected with the second connecting key (83);A first magnet (85) is also embedded and fixed in the motor shaft (81) of the driving motor (6), and a second magnet (86) is embedded and fixed in the hole bottom of the second rotating hole (82).

6. The device of claim 5, wherein: The second connecting key (83) and the second key groove (84) are in the shape of a sector, a third key groove (87) is further formed in the second rotating hole (82), the third key groove (87) is in the shape of a sector and is arranged in alignment with the second key groove (84) upside down, the third key groove (87) is located below the second key groove (84), the third key groove (87) is in communication with the second key groove (84) upside down, and one end of the third key groove (87) is aligned with the second key groove (84), and the other end of the third key groove (87) is larger than the second key groove (84).

7. The device of claim 1, wherein: The box (1) is in the shape of a square box.

8. The device of claim 1, wherein: A box turning machine lock catch (13) is arranged on one side of the outer side of the box (1).

9. The device of claim 1, wherein: An AGV forklift opening (14) is arranged at the bottom of the box (1).

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