Quick-freezing equipment suitable for slurry-coated bean curd and fresh-keeping process

Abstract

The invention relates to the technical field of quick freezing of soybean milk wrapped tofu, in particular to quick freezing equipment suitable for soybean milk wrapped tofu and a fresh-keeping technology.The quick freezing equipment comprises a frame body, a box body and a fastening mechanism, supporting frames are arranged at the two ends of the frame body, a supporting plate is arranged below the two supporting frames, a transverse moving mechanism is arranged on the supporting plate, and a conveying net chain is arranged in the frame body; the quick-freezing box comprises a frame body and a box body, a rectangular strip is arranged on the lower edge of the frame body, a rectangular groove is formed in the upper edge of the box body, the fastening mechanism comprises six screws, six threaded sleeves and a connecting plate, two synchronous wheels are arranged on each screw, and two motors are arranged below the connecting plate. Therefore, the box body can be conveniently and independently detached to be cleaned, the time and labor cost required by cleaning can be greatly reduced, and the sealing effect is improved under the action of the fastening mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of quick-freezing of coated tofu, and in particular to quick-freezing equipment and a fresh-keeping process suitable for coated tofu. Background Art

[0002] The production process of coated tofu is relatively unique. It is usually made of gypsum tofu. By adding a step of soaking in soda water, the inner layer of the tofu remains in a slurry state after the outer layer is baked. In order to extend its shelf life, quick freezing is generally adopted. The speed can reduce the activity of microorganisms in the tofu and slow down the chemical reaction rate, thereby extending its shelf life. However, the current quick freezing temperature cannot be set and adjusted according to the product. Different quick freezing methods may have different effects on the quality and taste of the product, and may cause different damages to the inside of the product. At the same time, the quick freezing equipment in the prior art has a low degree of automation and cannot automatically realize intelligent quick freezing, automatic drying, weighing, packing and warehousing of food.

[0003] Prior art patent CN118602668A discloses a food quick-freezing processing system and method, including a quick-freezing device including a quick-freezing box, in which quick-freezing liquid is installed, and a conveying mechanism is arranged in the quick-freezing box to convey the food and quick-freeze it through the quick-freezing liquid, the quick-freezing box is provided with a temperature sensor for temperature monitoring, a vibrating air-cooling dehydration device is arranged downstream of the quick-freezing device to dehydrate the quick-frozen food, and an automatic weighing and packing device, a conveying device and a stacking device are arranged downstream of the vibrating air-cooling dehydration device in sequence to weigh and pack the food respectively. The prior art automatically completes the quick-freezing process of the food, and can monitor the quick-freezing temperature in real time, realize automatic compensation control of the quick-freezing temperature and the quick-freezing line speed, ensure product quality, and reduce labor intensity.

[0004] However, in the above structure, the quick-freezing box is often loaded with quick-freezing liquid. After long-term use, the inner bottom of the quick-freezing box will become dirty. Since the quick-freezing box is an integrated design as a whole, it has too many internal structures, which makes it inconvenient to clean the inner bottom of the quick-freezing box. Summary of the invention

[0005] The purpose of the present invention is to provide a quick-freezing device and a fresh-keeping process suitable for coated tofu, so as to solve the technical problem that in the prior art, the quick-freezing box is often loaded with quick-freezing liquid, and the inner bottom thereof becomes dirty after long-term use; and since the quick-freezing box is an integrated design as a whole, it has too many internal structures, making it inconvenient to clean the inner bottom of the quick-freezing box.

[0006] To achieve the above-mentioned purpose, the present invention provides a quick-freezing device suitable for coated tofu, comprising a frame, a box body and a fastening mechanism, support frames are arranged at both ends of the frame body, support plates are arranged below the two support frames, a transverse movement mechanism is arranged on the support plate, a conveying network chain is arranged in the frame body, a rectangular bar is arranged at the lower edge of the frame body, a rectangular groove is arranged at the upper edge of the box body, the frame body and the box body are in conflict with each other and are located above the box body, and the rectangular bar is located in the rectangular groove, the fastening mechanism comprises six screws, six threaded sleeves and a connecting plate, two screws are arranged on the screw A synchronous wheel, two motors are arranged under the connecting plate, the six screws are rotatably connected to the connecting plate through bearings respectively, and are located on the upper end surface of the connecting plate, and the screw near the middle of the connecting plate is driven by the corresponding motor, the synchronous wheels between the six screws are connected by a synchronous belt transmission, and three of the screws form a group, the six threaded sleeves are fixedly connected to the box body respectively, and are arranged around the outside of the box body, and the six screws are also threadedly connected to the corresponding threaded sleeves respectively, and are located in the threaded sleeves, and the connecting plate is arranged on the transverse movement mechanism.

[0007] Wherein, the fastening mechanism also includes a plurality of positioning rods, which are respectively fixedly connected to the box body and located below the box body. The plurality of positioning rods are also respectively slidably connected to the connecting plate and penetrate the upper and lower end surfaces of the connecting plate.

[0008] Wherein, a sealing ring is arranged at the connection between the frame body and the box body, and a sealing strip is arranged between the rectangular strip and the rectangular groove.

[0009] Among them, the quick-freezing equipment suitable for coated tofu also includes a pressing mechanism and a limiting component. The pressing mechanism is arranged above the frame and also extends into the frame. The limiting component is arranged at the upper edges of both ends of the frame.

[0010] Among them, the holding mechanism includes a holding plate and two horizontal plates, two hydraulic rods are arranged on the horizontal plate, and the output end of the hydraulic cylinder passes through the horizontal plate, the holding plate is fixedly connected to the corresponding hydraulic rod, and is located at the output end of multiple hydraulic cylinders, and also extends into the frame, the two horizontal plates are respectively fixedly connected to the frame, and are located above the frame.

[0011] Among them, the limiting assembly includes a plurality of side plates and a guide plate, the plurality of side plates are respectively fixedly connected to the frame, and are located at the upper edges of both ends of the frame, and are also located at the outer edge of the conveying network chain, the guide plate is fixedly connected to the frame, and is located at one end of the frame, and is also located above the corresponding support frame.

[0012] The present invention also provides a freshness-locking process applicable to clad tofu, which is applied to the quick-freezing equipment applicable to clad tofu, and comprises the following steps:

[0013] Firstly, the packaged tofu is laid out in sequence at one end of the conveyor network chain, and then a quick-freezing liquid is added between the frame and the box body;

[0014] At this time, the conveying net chain is started, and based on the action of the net chain, the packaged tofu with batter is slowly moved toward the depth of the box body;

[0015] When the tofu with batter moves to the holding mechanism, the hydraulic rod can be controlled to push the holding plate downward, so that the tofu with batter is always completely immersed in the quick-freezing liquid. The tofu with batter is quickly frozen and freshness is locked under the action of the quick-freezing liquid.

[0016] The quick-frozen coated tofu is then moved to the other end of the conveyor network chain for sorting.

[0017] The invention discloses a quick-freezing device and a fresh-keeping process for coated tofu, comprising a frame, a box body and a fastening mechanism, wherein both ends of the frame body are provided with support frames, support plates are provided below the two support frames, a lateral movement mechanism is provided on the support plates, a transmission network chain is provided in the frame body, a rectangular strip is provided at the lower edge of the frame body, a rectangular groove is provided at the upper edge of the box body, the fastening mechanism comprises six screws, six threaded sleeves and a connecting plate, two synchronous wheels are provided on the screws, and two motors are provided below the connecting plate. By splitting the quick-freezing box into the structure of the frame body and the box body, the box body can be easily removed and cleaned separately, which can greatly reduce the time and labor cost required for cleaning, and the sealing effect is improved under the action of the fastening mechanism, so that the quick-freezing box is often loaded with quick-freezing liquid, and the inner bottom thereof becomes dirty after long-term use, and the quick-freezing box is designed as an integrated whole, and its internal structure is too much, so that it is not convenient to clean the inner bottom of the quick-freezing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 It is a front view of the first embodiment of the present invention.

[0020] Figure 2 The present invention Figure 1 Section view along line AA.

[0021] Figure 3The present invention Figure 2 A partial enlarged view of point B in the middle.

[0022] Figure 4 The present invention Figure 1 Sectional view along the CC line.

[0023] Figure 5 The present invention Figure 4 A partial enlarged view of point D in the middle.

[0024] Figure 6 It is a three-dimensional stereogram of the second embodiment of the present invention.

[0025] Figure 7 It is a front view of the second embodiment of the present invention.

[0026] Figure 8 The present invention Figure 7 Cross-sectional view along line EE.

[0027] Fig. 9 is a side view of a third embodiment of the present invention.

[0028] Fig.10 The present invention Fig. 9 Cross-sectional view along line FF.

[0029] Fig.11 The invention discloses a flow chart of the steps of a freshness-locking process suitable for coated tofu.

[0030] 101-frame, 102-box, 103-support frame, 104-support plate, 105-transverse movement mechanism, 106-transmission network chain, 107-rectangular bar, 108-rectangular groove, 109-screw, 110-threaded sleeve, 111-connecting plate, 112-synchronous wheel, 113-motor, 114-bearing, 115-positioning rod, 116-sealing ring, 117-sealing strip, 118-synchronous belt, 201-cross plate, 202-holding plate, 203-hydraulic rod, 204-side plate, 205-guide plate, 301-pulley, 302-slide rail, 303-L-shaped plate, 304-slide groove, 305-baffle, 306-base. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0032] First embodiment:

[0033] See also Figure 1 to Figure 5 ,in Figure 1 is a front view of a first embodiment of the present invention, Figure 2 The present invention Figure 1 The cross-sectional view along the AA line. Figure 3 The present invention Figure 2 A partial enlarged view of point B in the middle. Figure 4 The present invention Figure 1 Cross-sectional view of the CC line, Figure 5 The present invention Figure 4 A partial enlarged view of point D in the middle.

[0034] The present invention provides a quick-freezing device suitable for coated tofu, comprising a frame 101, a box body 102 and a fastening mechanism, wherein support frames 103 are arranged at both ends of the frame 101, support plates 104 are arranged below the two support frames 103, and a transverse movement mechanism 105 is arranged on the support plates 104, a conveying network chain 106 is arranged in the frame 101, a rectangular bar 107 is arranged at the lower edge of the frame 101, a rectangular groove 108 is provided at the upper edge of the box body 102, the frame 101 and the box body 102 are in conflict with each other and are located above the box body 102, and the rectangular bar 107 is located in the rectangular groove 108.

[0035] According to the present specific embodiment, the fastening mechanism includes six screw rods 109, six threaded sleeves 110 and a connecting plate 111, two synchronous wheels 112 are arranged on the screw rods 109, two motors 113 are arranged below the connecting plate 111, the six screw rods 109 are rotatably connected to the connecting plate 111 through bearings 114, and are located on the upper end surface of the connecting plate 111, and the screw rods 109 near the middle of the connecting plate 111 are driven by the corresponding motors 113, the synchronous wheels 112 between the six screw rods 109 are connected by synchronous belts 118, and three screw rods 109 form a group, and the six threaded sleeves 110 are fixedly connected to the box body 102, and are located around the box body. The outer side of the quick-freezing box 102 is arranged, and the six screws 109 are also threadedly connected with the corresponding threaded sleeves 110 respectively and are located in the threaded sleeves 110. The connecting plate 111 is arranged on the transverse movement mechanism 105. By splitting the quick-freezing box into the structure of the frame body 101 and the box body 102, the box body 102 can be easily removed separately for cleaning, which can greatly reduce the time and labor costs required for cleaning, and the sealing effect is improved under the action of the fastening mechanism. In this way, the quick-freezing box is effectively solved. The problem that the quick-freezing liquid is often loaded in the quick-freezing box, and the inner bottom thereof will become dirty after long-term use, and the quick-freezing box as a whole is of integrated design and has too many internal structures, which makes it inconvenient to clean the inner bottom of the quick-freezing box.

[0036] Among them, the fastening mechanism also includes a plurality of positioning rods 115, and the plurality of positioning rods 115 are respectively fixedly connected to the box body 102 and are located below the box body 102. The plurality of positioning rods 115 are also respectively slidably connected to the connecting plate 111 and penetrate the upper and lower end surfaces of the connecting plate 111. The positioning rods 115 can be used to improve the stability of the box body 102 when it moves downward, thereby avoiding the box body 102 from being offset.

[0037] Secondly, a sealing ring 116 is provided at the connection between the frame 101 and the box body 102, and a sealing strip 117 is provided between the rectangular bar 107 and the rectangular groove 108. The setting of the sealing ring 116 and the sealing strip 117 can effectively prevent cold air leakage during the quick freezing process, thereby improving the quick freezing efficiency and energy saving effect.

[0038] When using the quick-freezing device for coated tofu of the present embodiment, by starting the two motors 113, the two motors 113 simultaneously drive the two screw rods 109 near the middle of the connecting plate 111 in a clockwise direction, and the remaining screw rods 109 are linked together under the action of the synchronous belt 118 and the synchronous wheel 112. At this time, the six screw rods 109 are all threadedly connected with the corresponding threaded sleeves 110 in a clockwise direction, and the box body 102 moves downward until the rectangular strip 107 is completely separated from the rectangular groove 108, and then the box body 102 is removed by the transverse movement mechanism 105. The bottom of the box body 102 can be cleaned at this time. The quick-freezing box is separated into the structure of the frame body 101 and the box body 102, so that the box body 102 can be removed separately for cleaning, which can greatly reduce the time and labor cost required for cleaning, and improve the sealing effect under the action of the fastening mechanism. In this way, the quick-freezing box is effectively solved. The problem that the quick-freezing liquid is often loaded in the quick-freezing box, and the inner bottom thereof will become dirty after long-term use, and the technical problem that the quick-freezing box is in an integrated design as a whole and has too many internal structures, making it inconvenient to clean the inner bottom of the quick-freezing box.

[0039] Second embodiment:

[0040] Based on the first embodiment, please refer to Figure 6 to Figure 8 ,in Figure 6 is a three-dimensional stereogram of a second embodiment of the present invention, Figure 7 is a front view of a second embodiment of the present invention, Figure 8 The present invention Figure 7 Cross-sectional view along line EE.

[0041] The present invention provides a quick-freezing device suitable for coated tofu, further comprising a holding mechanism and a limiting assembly. The holding mechanism is arranged above the frame 101 and also extends into the frame 101. The limiting assembly is arranged at the upper edges of both ends of the frame 101.

[0042] Among them, the pressing mechanism includes a pressing plate 202 and two transverse plates 201, two hydraulic rods 203 are arranged on the transverse plate 201, and the output end of the hydraulic cylinder passes through the transverse plate 201, the pressing plate 202 is fixedly connected to the corresponding hydraulic rod 203, and is located at the output end of multiple hydraulic cylinders, and also extends into the frame 101, the two transverse plates 201 are respectively fixedly connected to the frame 101, and are located above the frame 101, the pressing mechanism uses the hydraulic cylinder as a power source, and has the advantages of large driving force, precise control, and stable operation. The output end of the hydraulic cylinder passes through the transverse plate 201 and is fixedly connected to the pressing plate 202, ensuring the uniform distribution and stable transmission of the pressing force, so that the coated tofu floats.

[0043] Secondly, the limiting assembly includes a plurality of side panels 204 and a guide plate 205. The plurality of side panels 204 are respectively fixedly connected to the frame 101 and are located at the upper edges of both ends of the frame 101 and at the outer edge of the conveying network chain 106. The guide plate 205 is fixedly connected to the frame 101 and is located at one end of the frame 101 and is located above the corresponding support frame 103. By the side panels 204 being fixedly connected to the frame 101 and being located at the outer edge of the conveying network chain 106, the falling of the coated tofu is effectively prevented. The guide plate 205 is located at one end of the frame 101 and above the corresponding support frame 103, guiding the coated tofu to enter the quick-freezing area smoothly, thereby avoiding damage to the coated tofu or equipment failure due to improper operation.

[0044] When using a quick-freezing device suitable for coated tofu according to the present embodiment, the pressing mechanism adopts the hydraulic cylinder as a power source, which has the advantages of large driving force, precise control, and smooth operation. The output end of the hydraulic cylinder passes through the cross plate 201 and is fixedly connected to the pressing plate 202, ensuring uniform distribution and stable transmission of the pressing force, so that the coated tofu floats up. The side plate 204 is fixedly connected to the frame 101 and is located at the outer edge of the conveying network chain 106, effectively preventing the coated tofu from falling. The guide plate 205 is located at one end of the frame 101 and above the corresponding support frame 103, guiding the coated tofu to enter the quick-freezing area smoothly, avoiding damage to the coated tofu or equipment failure due to improper operation.

[0045] Third embodiment:

[0046] Based on the second embodiment, please refer to Figure 9-10 ,in Fig. 9 is a side view of a third embodiment of the present invention, Fig.10 The present invention Fig. 9 Cross-sectional view along line FF.

[0047] The present invention provides a quick-freezing device suitable for coated tofu. The transverse movement mechanism 105 includes two transverse movement components, and the two transverse movement components are symmetrically arranged between the connecting plate 111 and the supporting plate 104 .

[0048] Among them, the transverse movement assembly includes two pulleys 301, two slide rails 302 and an L-shaped plate 303. The support plate 104 has two slide grooves 304. The two pulleys 301 are respectively arranged below the connecting plate 111 and also abut against the corresponding slide rails 302. The two slide rails 302 are respectively fixedly connected to the support plate 104 and are located on the support plate 104. The L-shaped plate 303 is arranged below the connecting plate 111 and is also slidably arranged in the corresponding slide grooves 304. The arrangement of the pulley 301 and the slide rail 302 can facilitate the support of one side of the connecting plate 111 and also facilitate sliding, and the L-shaped plate 303 can facilitate the support of the other side of the connecting plate 111.

[0049] Secondly, baffles 305 are provided at both ends of the slide rail 302, and the pulley 301 also abuts against the corresponding baffles 305. A base 306 is provided under the L-shaped plate 303. The setting of the baffle 305 can prevent the pulley 301 from completely separating from the slide rail 302. The base 306 can prevent the L-shaped plate 303 from tilting when the box body 102 is removed from the bottom of the frame body 101.

[0050] When using the quick-freezing equipment suitable for coated tofu of this embodiment, the pulley 301 and the slide rail 302 can be used to support one side of the connecting plate 111 and facilitate sliding, while the L-shaped plate 303 can support the other side of the connecting plate 111. The baffle 305 can prevent the pulley 301 from completely separating from the slide rail 302, and the base 306 can prevent the L-shaped plate 303 from tilting when the box body 102 is removed from the bottom of the frame body 101.

[0051] Based on the third embodiment, please refer to Fig.11 ,in Fig.11 The invention discloses a flow chart of the steps of a freshness-locking process suitable for coated tofu.

[0052] The present invention also provides a freshness-locking process applicable to clad tofu, which is applied to the quick-freezing equipment applicable to clad tofu, and comprises the following steps:

[0053] S1: First, the packaged tofu is laid out on one end of the conveyor chain 106 in sequence, and then a quick-freezing liquid is added between the frame 101 and the box body 102;

[0054] S2: At this time, the conveying mesh chain 106 is started, and based on the action of the mesh chain, the packaged tofu with batter is slowly moved toward the depth of the box body 102;

[0055] S3: When the tofu with batter moves to the holding mechanism, the hydraulic rod 203 can be controlled to push the holding plate 202 downward, so that the tofu with batter is always completely immersed in the quick-freezing liquid. The tofu with batter is quickly frozen and fresh under the action of the quick-freezing liquid.

[0056] S4: The quick-frozen coated tofu is then moved to the other end of the conveyor chain 106 for sorting.

[0057] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A quick-freezing device suitable for coated tofu, comprising a frame and a box body, support frames are provided at both ends of the frame body, support plates are provided below the two support frames, a lateral movement mechanism is provided on the support plate, a conveying network chain is provided in the frame body, a rectangular strip is provided at the lower edge of the frame body, a rectangular groove is provided at the upper edge of the box body, the frame body and the box body are in conflict with each other and are located above the box body, and the rectangular strip is located in the rectangular groove, characterized in that: Also included is a fastening mechanism; The fastening mechanism includes six screw rods, six threaded sleeves and a connecting plate, two synchronous wheels are arranged on the screw rods, and two motors are arranged below the connecting plate. The six screw rods are rotatably connected to the connecting plate through bearings respectively and are located on the upper end surface of the connecting plate, and the screw rods close to the middle of the connecting plate are driven by the corresponding motors, and the synchronous wheels between the six screw rods are connected by synchronous belt transmission, and three of the screw rods form a group, and the six threaded sleeves are fixedly connected to the box body respectively and are arranged around the outside of the box body, and the six screw rods are also threadedly connected to the corresponding threaded sleeves respectively and are located in the threaded sleeves, and the connecting plate is arranged on the transverse movement mechanism.

2. The quick-freezing equipment for coated tofu as claimed in claim 1, characterized in that: The fastening mechanism also includes a plurality of positioning rods, which are respectively fixedly connected to the box body and located below the box body. The plurality of positioning rods are also respectively slidably connected to the connecting plate and penetrate the upper and lower end surfaces of the connecting plate.

3. The quick-freezing equipment for coated tofu as claimed in claim 2, characterized in that: A sealing ring is arranged at the connection between the frame body and the box body, and a sealing strip is arranged between the rectangular strip and the rectangular groove.

4. The quick-freezing device for coated tofu as claimed in claim 3, characterized in that: The quick-freezing device suitable for coated tofu also includes a holding mechanism and a limiting component. The holding mechanism is arranged above the frame and also extends into the frame. The limiting component is arranged at the upper edges of both ends of the frame.

5. The quick-freezing equipment for coated tofu as claimed in claim 4, characterized in that: The holding mechanism includes a holding plate and two transverse plates, two hydraulic rods are arranged on the transverse plate, and the output end of the hydraulic cylinder passes through the transverse plate, the holding plate is fixedly connected to the corresponding hydraulic rods, and is located at the output ends of multiple hydraulic cylinders, and also extends into the frame, and the two transverse plates are respectively fixedly connected to the frame and are located above the frame.

6. The quick-freezing equipment for coated tofu as claimed in claim 5, characterized in that: The limiting assembly includes a plurality of side plates and a guide plate. The plurality of side plates are respectively fixedly connected to the frame and are located at the upper edges of both ends of the frame and at the outer edge of the conveying network chain. The guide plate is fixedly connected to the frame and is located at one end of the frame and is located above the corresponding support frame.

7. A freshness-locking process for coated tofu, applied to the quick-freezing equipment for coated tofu as claimed in claim 6, characterized in that: The steps include: Firstly, the packaged tofu is laid out in sequence at one end of the conveyor network chain, and then a quick-freezing liquid is added between the frame and the box body; At this time, the conveying net chain is started, and based on the action of the net chain, the packaged tofu with batter is slowly moved toward the depth of the box body; When the tofu with batter moves to the holding mechanism, the hydraulic rod can be controlled to push the holding plate downward, so that the tofu with batter is always completely immersed in the quick-freezing liquid. The tofu with batter is quickly frozen and freshness is locked under the action of the quick-freezing liquid. The quick-frozen coated tofu is then moved to the other end of the conveyor network chain for sorting.

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