Grape pulp hardening device capable of reducing fruit breaking rate and production method of grape pulp hardening device

Abstract

The invention relates to a grape pulp hardening device capable of reducing the fruit breaking rate and a production method of the grape pulp hardening device. The grape pulp hardening device comprises a box body, and a soaking assembly, a draining assembly and a material guide groove which are arranged on the box body and are sequentially distributed from back to front in the material moving direction; the soaking assembly comprises a material carrying block arranged in the opening in the top of the box body, a flow dividing pipe transversely and rotatably connected to the interior of the opening in the top of the box body and located above the rear side of the material carrying block, and a plurality of liquid outlet pipes which are connected to the flow dividing pipe in an inserted mode, are sequentially arranged at equal intervals from left to right and communicate with the interior of the flow dividing pipe. The soaking assembly further comprises a plurality of material pushing units which are arranged between the box body and the material carrying block and are sequentially distributed from front to back; the draining assembly comprises a draining cage and a power mechanism; the draining cage is transversely and rotatably connected to the box body; the power mechanism is arranged between the box body and the draining cage and is used for driving the draining cage to rotate; the use amount of the pulp hardening solution is greatly reduced, so that the processing cost is remarkably reduced, the operation process is simplified, the working efficiency is improved, and the fruit breaking rate is further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of fruit food processing, in particular to a grape pulp hardening device for reducing fruit breakage rate and a production method thereof. Background Art

[0002] Canned grapes are a kind of instant food made from grapes as the main raw material through special processing. At present, the grape varieties used to make canned grapes are mainly Kyoho and Sunshine Rose; the grape varieties used to make frozen pulp are mainly Karen and Sunshine Rose. The Kyoho variety has strong storage and transportation capabilities, which is conducive to maintaining the freshness and quality of the grapes, but it is prone to cracking; the Karen variety is favored for its high soluble solids content (15% to 20%) and storage and transportation resistance, but it is not heat-resistant and has a large flavor change.

[0003] In the production process of canned grapes, it is very important to maintain the original shape and necessary crispness. However, the pulp of Kyoho and Kronsen grapes is easy to be damaged during hardening and other processing, which leads to a high rate of broken fruit. The damaged pulp affects the taste and appearance, and the utilization rate is low, so the loss of raw materials is large. In order to reduce the loss of raw materials, the grape pulp must be kept crisp and hardened.

[0004] The existing methods for keeping grape pulp crisp and hardening are mostly to first put a large amount of grape pulp into a larger container at one time, then pour the prepared pulp hardening solution into the container to soak the grape pulp, and when the soaking time is sufficient, manually scoop out the hardened grape pulp with a sieve. The above method has a complicated operation process and low work efficiency, and the grape pulp is easily crushed during the pouring and taking out process, which will also affect the fruit breaking rate. In addition, the amount of pulp hardening solution used is large and the processing cost is high, which urgently needs to be solved. Summary of the invention

[0005] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a grape pulp hardening device and a production method thereof which greatly reduces the usage of pulp hardening solution to significantly reduce processing costs, simplifies the operation process to improve work efficiency, and can further reduce the fruit breakage rate.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a grape pulp hardening device for reducing the fruit breakage rate, characterized in that it comprises a box body and a soaking component, a draining component and a material guide trough arranged on the box body and arranged in sequence from back to front along the direction of the material, wherein the material guide trough is arranged with the front lower and the rear higher;

[0007] The immersion assembly includes a loading block arranged inside the top opening of the box body, a shunt pipe which is laterally and rotatably connected to the inside of the top opening of the box body and located above the rear side of the loading block, and a plurality of liquid outlet pipes which are plugged into the shunt pipe and are arranged at equal intervals from left to right and are interconnected with the inside of the shunt pipe. The top of the loading block is arranged low in the front and high in the back. The left and right outer walls of the loading block are respectively sealed and fixed to the left and right inner walls of the top opening of the box body. The end opening of each of the liquid outlet pipes is inclined toward the front and downward to match the top inclination of the loading block. Both ends of the liquid outlet pipe are closed.

[0008] The soaking assembly also includes a plurality of pushing units arranged between the box body and the material loading block and distributed sequentially from front to back, the pushing units include a supporting block that is movably and sealedly interspersed in the material loading block to have an up and down lifting function, and an electric cylinder fixed inside the box body and located below the supporting block, the telescopic end of the electric cylinder is vertically arranged upward and fixed to the bottom of the supporting block, and the height of the supporting blocks in the plurality of pushing units increases sequentially from front to back to adapt to the top slope of the material loading block;

[0009] The draining assembly comprises a draining cage which is laterally and rotatably connected to the box body and a power mechanism which is arranged between the box body and the draining cage to drive the draining cage to rotate.

[0010] Preferably, a plurality of slots extending vertically and arranged in sequence from front to back are provided between the top outer wall and the bottom outer wall of the loading block, the number of the slots being equal to the number of the supporting blocks, each of the supporting blocks being movably and sealedly inserted in a corresponding slot, a connecting slope which matches the slope of the top of the loading block being formed on the top of each supporting block, and a immersion tank with a variable volume being formed between the connecting slope on each supporting block and the inner wall at the top opening of a corresponding slot.

[0011] Preferably, a notch cavity is formed at the top front corner of the box body, a discharge hole is opened on the rear inner wall of the notch cavity, the drain cage is arranged in the notch cavity and in front of the discharge hole, the soaking component also includes a first material guide plate which is lower in front and higher in the back and is inclined in the discharge hole, the rear side of the first material guide plate is fixed on the front outer wall of the loading block, the top front edge of the first material guide plate cooperates with the drain cage, and a plurality of first through holes are opened in the first material guide plate.

[0012] Preferably, the draining cage includes two cantilevers fixed on the inner wall of the rear side of the cavity and symmetrically arranged on the left and right, a cylinder body arranged laterally between the two cantilevers, a plurality of spokes fixed on the outer peripheral surface of the cylinder body and evenly arranged at equal angles in the circumferential direction, a support plate concentrically fixed at the center position inside the cylinder body, and a traction shaft concentrically inserted and fixed in the support plate, and the left and right ends of the traction shaft are rotatably connected to the two cantilevers respectively.

[0013] Preferably, the drain cage also includes two side retaining rings concentrically fixed on the left and right ends of the cylinder, and the left and right sides of each spoke plate are sealed and fixed on the inner walls of the two side retaining rings, and a drain groove is formed between any two adjacent spoke plates and the two side retaining rings. The inner diameter of the side retaining ring is equal to the inner diameter of the cylinder, and the outer diameter of the side retaining ring is larger than the outer diameter of the cylinder.

[0014] Preferably, the support plate divides the interior of the cylinder into two cylindrical cavities symmetrically arranged on the left and right, and the drain cage also includes two liquid receiving boxes respectively arranged in the two cylindrical cavities and both located above the traction shaft, each of the liquid receiving boxes is fixed on a cantilever on the same side, and the top opening of the liquid receiving box cooperates with the inner wall of the cylinder, and a plurality of drainage hole combinations uniformly distributed at equal angles in the circumferential direction are provided on the outer circumferential surface of the cylinder, and the drainage hole combination includes a plurality of drainage holes arranged at equal intervals from left to right.

[0015] Preferably, a circulation component is further provided between the draining cage and the soaking component, and the circulation component includes a liquid storage box fixed inside the box body and a filter plate vertically fixed inside the liquid storage box, the filter plate divides the interior of the liquid storage box into a liquid receiving chamber and a clear liquid chamber respectively arranged front and back, the top opening of the liquid receiving chamber is arranged below the first material guide plate and the draining cage, a plurality of filter holes are provided between the front and rear outer walls of the filter plate, a plurality of interface pipes are also plugged into the bottom of each of the liquid receiving boxes, each of the interface pipes is also connected to a hose, and the end openings of each of the hoses are interconnected with the interior of the liquid receiving chamber.

[0016] Preferably, the circulation component also includes a circulation pump, a reflux pipe and a liquid inlet pipe, one end of the reflux pipe and one end of the liquid inlet pipe are respectively connected to the liquid inlet and liquid outlet of the circulation pump, the other end of the reflux pipe is plugged into one side of the liquid storage box and communicated with the interior of the clear liquid tank, and one end of the liquid inlet pipe is plugged into the shunt pipe and communicated with the interior of the shunt pipe.

[0017] Preferably, there is at least one buffer combination distributed in sequence from top to bottom above the first material guide plate, and the buffer combination includes a second material guide plate arranged low in the front and high in the back, and a third material guide plate arranged high in the front and low in the back below the second material guide plate, the rear side of the second material guide plate is fixed to the front outer wall of the loading block, and the front side of the second material guide plate is spaced a certain distance from the front inner wall of the box body, the front side of the third material guide plate is fixed to the front inner wall of the box body, and the rear side of the third material guide plate is spaced a certain distance from the front outer wall of the loading block; a plurality of second through holes are opened in the second material guide plate, and a plurality of third through holes are opened in the third material guide plate.

[0018] A method for producing grape pulp with reduced fruit breakage rate, characterized in that it comprises the following steps:

[0019] S1: performing pre-treatment steps on grapes in sequence, including de-branching, de-skinning and de-seeding;

[0020] S11: Delimbing

[0021] Use soft brush to wash and thresh, and use drum destemmer to remove the platycodon on grapes;

[0022] S12: Peeling

[0023] Alkaline solution, alcohol and peeling agent are mixed to prepare mixed solution A, which is used for soaking and peeling grapes;

[0024] S13: Seeding

[0025] Use a pitting machine to punch holes in the peeled grapes and remove the grape seeds by vibration;

[0026] S2: Immersion Hardening

[0027] Calcium ions and color preservatives are mixed to form a mixed solution B, and the grape pulp is hardened by continuous immersion;

[0028] S21: placing the seeded grapes on the top of the loading block and pushing the grapes into each soaking tank so that each soaking tank is filled with grapes at a certain density;

[0029] S22: pouring a certain amount of mixed solution B into the liquid storage box, starting the circulation pump in the circulation component to output the mixed solution B to the top of the loading block and flow into each immersion tank in turn, and shutting off the circulation pump when each immersion tank is filled, so that the grapes are immersed in the pulp hardening solution;

[0030] S23: After soaking for a certain period of time, the circulation pump is started again to continuously flow the pulp hardening solution to the top of the loading block and continue to flow forward and downward along the top slope of the loading block. Then, at a certain time interval, the telescopic end of each electric cylinder is driven to extend outward from the front to the back in turn to push the grapes and the mixed solution B in each soaking tank upward. The pushed grapes are also driven forward and downward by the flowing mixed solution B, which effectively avoids the grapes from flowing into the next process in large quantities at one time.

[0031] S24: After the grapes and the mixed solution B leave the top of the loading block, they will pass through the top of the second guide plate and the third guide plate in each buffer assembly from top to bottom in turn until they roll down to the top of the first guide plate. The grapes on the top of the first guide plate will continue to move forward and downward, while the mixed solution B will all fall into the liquid receiving chamber for recovery;

[0032] S25: The draining cage is driven to rotate by means of a power mechanism; when the grape grains leave the top front edge of the first guide plate, they fall into a draining trough located below it and rotate clockwise with the draining trough, so that the grape grains can be distributed to each draining trough in turn for batch processing;

[0033] S26: When the draining trough rotates to above the top openings of the two liquid receiving boxes, the residual pulp hardening solution entrained in the grapes will fall downward into the two liquid receiving boxes through a plurality of drainage holes located at the draining trough and flow back into the liquid receiving chamber through the interface pipe and the hose;

[0034] S27: When the opening of the draining trough is rotated to a downward position, the opening of the draining trough is just above the guide trough, and the grapes in the draining trough are all poured into the guide trough and continue to move forward along the slope of the guide trough. Finally, the operator can collect the grapes at the front opening of the guide trough 4.

[0035] S3: Screening, disinfection,

[0036] Remove defective products such as residual cores, branches, residual skin, black spots, etc. through light irradiation; use 4-10ppm ozone disinfection for 2-8 minutes to effectively inhibit microorganisms;

[0037] S4: Soup preparation, soup addition, sterilization

[0038] Add sugar and different concentrations of calcium ions, and adjust the amount of calcium ions added according to the maturity of the raw materials; use low-temperature long-time sterilization technology (78-84℃, 15-25 minutes). Compared with traditional canning sterilization conditions (84-88℃, 15-20 minutes), low-temperature sterilization is more conducive to maintaining product flavor, while improving calcium ion penetration, avoiding meat softening, and enhancing hardening effect;

[0039] S5: Filling and freezing

[0040] The process of canning before freezing is adopted to improve the yield of grape pulp after freezing.

[0041] Compared with the prior art, the advantages of the present invention are as follows: a immersion tank with a variable volume is formed between the top of each support block of the present invention and the inner wall of the top opening of a corresponding slot hole on the loading block, and a large number of grape grains to be hardened are dispersed and immersed in the pulp hardening solution in each immersion tank, thereby greatly reducing the use of the pulp hardening solution and significantly reducing the processing cost; when the grape pulp is soaked, each pushing unit can be used to push the grape grains and the pulp hardening solution in each immersion tank upward to the top of the loading block at a certain time interval, and the slope and the flow force of the pulp hardening solution are used to push the grape grains to be automatically transferred to the draining component in batches, and finally automatically transferred to the guide trough 4 in batches by the rotation of the draining cage, thereby simplifying the operation process and improving work efficiency; and because the grape grains move in batches at equal intervals during the above transfer process, the grape grains will not be too crowded, thereby effectively preventing the grape grains from being crushed, thereby further reducing the fruit breakage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a left front structural diagram of the present invention;

[0043] Figure 2 It is a left-side cross-sectional structural diagram of the present invention;

[0044] Figure 3 It is a left side cross-sectional structural diagram of the drain cage of the present invention;

[0045] Figure 4 It is the exploded structural diagram of the left front side of the drain cage of the present invention. DETAILED DESCRIPTION

[0046] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships, such as A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0048] like Figures 1 to 4 As shown, a grape pulp hardening device for reducing the fruit breakage rate comprises a box body 1, and a soaking component 2, a draining component 3 and a material guide trough 4 arranged on the box body 1 and arranged in sequence from the back to the front along the material direction, wherein the material guide trough 4 is arranged with the front lower and the rear higher;

[0049] The immersion assembly 2 includes a loading block 21 disposed inside the top opening of the box body 1, a shunt pipe 26 which is laterally and rotatably connected to the inside of the top opening of the box body 1 and is located above the rear side of the loading block 21, and a plurality of liquid outlet pipes 27 which are plugged into the shunt pipe 26 and are arranged at equal intervals from left to right and are interconnected with the inside of the shunt pipe 26. The top of the loading block 21 is arranged low in the front and high in the back. The left and right outer walls of the loading block 21 are respectively sealed and fixed to the left and right inner walls of the top opening of the box body 1. The end opening of each liquid outlet pipe 27 is inclined toward the front and downward to match the top inclination of the loading block 21, and both ends of the liquid outlet pipe 27 are closed.

[0050] The soaking assembly 2 also includes a plurality of pushing units arranged between the box body 1 and the material loading block 21 and distributed sequentially from front to back. The pushing unit includes a supporting block 22 that is movably and sealedly interspersed in the material loading block 21 to have an up and down lifting function, and an electric cylinder 25 fixed inside the box body 1 and located below the supporting block 22. The telescopic end of the electric cylinder 25 is vertically arranged upward and fixed to the bottom of the supporting block 22. The height of the supporting block 22 in the plurality of pushing units increases sequentially from front to back to adapt to the top slope of the material loading block 21.

[0051] The drain assembly 3 comprises a drain cage which is laterally and rotatably connected to the housing 1 and a power mechanism which is arranged between the housing 1 and the drain cage to drive the drain cage to rotate.

[0052] A plurality of slots 2101 are provided between the top outer wall and the bottom outer wall of the loading block 21, and are arranged in sequence from front to back. The number of the slots 2101 is equal to the number of the supporting blocks 22. Each supporting block 22 is movably and sealedly inserted in a corresponding slot 2101. A connecting slope 221 matching the slope of the top of the loading block 21 is formed on the top of each supporting block 22. A immersion tank 23 with a variable volume is formed between the connecting slope 221 on each supporting block 22 and the inner wall of the top opening of a corresponding slot 2101.

[0053] A notch cavity 101 is formed at the top front corner of the box body 1, and a discharge hole 102 is opened on the rear inner wall of the notch cavity 101. The draining cage is arranged in the notch cavity 101 and is located in front of the discharge hole 102. The soaking component 2 also includes a first guide plate 211 which is lower in front and higher in the back and is inclined in the discharge hole 102. The rear side of the first guide plate 211 is fixed on the front outer wall of the loading block 21, and the top front edge of the first guide plate 211 cooperates with the draining cage, and a plurality of first through holes 211 are opened in the first guide plate 211.

[0054] The draining cage includes two cantilevers 310 fixed on the inner wall of the rear side of the notch cavity 101 and symmetrically arranged on the left and right, a cylinder 31 transversely arranged between the two cantilevers 310, a plurality of spokes 35 fixed on the outer circumferential surface of the cylinder 31 and uniformly arranged at equal angles in the circumferential direction, a support plate 32 concentrically fixed at the center position inside the cylinder 31, and a traction shaft 33 concentrically inserted and fixed in the support plate 32, and the left and right ends of the traction shaft 33 are rotatably connected to the two cantilevers 310 respectively.

[0055] The drain cage also includes two side retaining rings 34 concentrically fixed on the left and right ends of the cylinder 31, and the left and right sides of each spoke plate 35 are sealed and fixed on the inner walls of the two side retaining rings 34, respectively. A drain groove 37 is formed between any two adjacent spoke plates 35 and the two side retaining rings 34, and the inner diameter of the side retaining ring 34 is equal to the inner diameter of the cylinder 31, and the outer diameter of the side retaining ring 34 is larger than the outer diameter of the cylinder 31.

[0056] The support plate 32 divides the interior of the cylinder 31 into two cylindrical cavities 39 symmetrically arranged on the left and right. The drain cage also includes two liquid receiving boxes 36 respectively arranged in the two cylindrical cavities 39 and both located above the traction shaft 33. Each liquid receiving box 36 is fixed on a cantilever 310 on the same side. The top opening of the liquid receiving box 36 cooperates with the inner wall of the cylinder 31. A plurality of drainage hole combinations uniformly distributed at equal angles in the circumferential direction are provided on the outer circumferential surface of the cylinder 31. The drainage hole combination includes a plurality of drainage holes 3101 arranged at equal intervals from left to right.

[0057] A circulation component 5 is also provided between the draining cage and the soaking component 2. The circulation component 5 includes a liquid storage box 51 fixed inside the box body 1 and a filter plate 56 vertically fixed inside the liquid storage box 51. The filter plate 56 divides the interior of the liquid storage box 51 into a liquid receiving chamber 511 and a clear liquid chamber 512 respectively arranged in front and back. The top opening of the liquid receiving chamber 511 is arranged below the first material guide plate 211 and the draining cage. A plurality of filter holes 561 are opened between the front and rear outer walls of the filter plate 56.

[0058] The circulation component 5 also includes a circulation pump 52, a reflux pipe 54 and a liquid inlet pipe 53. One end of the reflux pipe 54 and one end of the liquid inlet pipe 53 are respectively connected to the liquid inlet and liquid outlet of the circulation pump 52. The other end of the reflux pipe 54 is inserted into one side of the liquid storage box 51 and communicated with the interior of the clear liquid tank 512. One end of the liquid inlet pipe 53 is inserted into the shunt pipe 26 and communicated with the interior of the shunt pipe 26.

[0059] A plurality of interface tubes 55 are plugged into the bottom of each liquid receiving box 36 , and each interface tube 55 is connected to a hose 57 . The end opening of each hose 57 is communicated with the interior of the liquid receiving chamber 511 .

[0060] There is also at least one buffer combination distributed from top to bottom above the first guide plate 211, and the buffer combination includes a second guide plate 28 arranged with a low front and a high back, and a third guide plate 29 arranged with a high front and a low back below the second guide plate 28. The rear side of the second guide plate 28 is fixed on the front outer wall of the loading block 21, and the front side of the second guide plate 28 is spaced a certain distance from the front inner wall of the box body 1. The front side of the third guide plate 29 is fixed on the front inner wall of the box body 1, and the rear side of the third guide plate 29 is spaced a certain distance from the front outer wall of the loading block 21.

[0061] The second material guide plate 28 defines a plurality of second through holes 281 , and the third material guide plate 29 defines a plurality of third through holes 291 .

[0062] The end edge of each spoke plate 35 is also formed with a flange 351 arranged in the rotation direction of the cylinder 31 .

[0063] A stopper 210 vertically arranged behind the shunt pipe 26 is also fixed on the top of the loading block 21 , and the left and right sides of the stopper 210 are respectively sealed and fixed on the left and right inner walls of the box body 1 .

[0064] The power mechanism includes a reduction motor 311 fixed on the outer wall of the box body 1, a first pulley 312 concentrically fixed on the rotating shaft of the reduction motor 311, a second pulley 313 concentrically fixed on one end of the traction shaft 33 and located on the same side as the first pulley 312, and a belt 314 sleeved on the first pulley 312 and the second pulley 313.

[0065] A sealing sleeve 24 is also fixedly mounted on the top outer wall of each supporting block 22 , and the outer wall of the sealing sleeve 24 is slidably fitted on the inner wall of the slot 2101 to achieve a sliding sealing connection between the supporting block 22 and the slot 2101 .

[0066] Working principle:

[0067] The telescopic end of the electric cylinder 25 in each pushing unit is driven to retract inward to drive each supporting block 22 to move downward, thereby forming a immersion tank 23 with a variable volume between the connecting inclined surface 221 on each supporting block 22 and the inner wall of the top opening of a corresponding slot hole 2101;

[0068] The seeded grapes 5 are placed on the top of the loading block 21 and pushed into each soaking tank 23 by hand so that each soaking tank 23 is filled with grapes 5 at a certain density, thereby greatly saving the amount of pulp hardening solution used to reduce costs;

[0069] A certain amount of pulp hardening solution is poured into the liquid storage box 51, and the circulation pump 52 in the circulation component 5 is started to make the pulp hardening solution enter the shunt pipe 26 through the reflux pipe 54 and the liquid inlet pipe 53 in turn, and then output to the top of the material loading block 21 through each liquid outlet pipe 27 and flow into each soaking tank 23 in turn. When each soaking tank 23 is filled, the circulation pump 52 is turned off, so that the grapes 5 are immersed in the pulp hardening solution, and the excess pulp hardening solution will flow forward along the top slope of the material loading block 21 and fall into the liquid receiving chamber 511 to prevent waste;

[0070] After soaking for a certain period of time, the circulation pump 52 is started again to continuously flow the pulp hardening solution to the top of the material loading block 21 and continue to flow forward and downward along the top slope of the material loading block 21. Then, the telescopic end of the frontmost electric cylinder 25 is driven to extend outward to drive the material supporting block 22 to move upward until the front and rear edges of the connecting inclined surface 221 are respectively flush with the front and rear edges of the top opening of the slot hole 2101 where it is located, thereby pushing the grapes 5 and the pulp hardening solution in the soaking tank 23 upward and making the volume of the soaking tank 23 become 0. The pushed-up grapes 5 are then driven forward and downward by the flowing pulp hardening solution.

[0071] When the grape grains 5 and the pulp hardening solution leave the top of the loading block 21, they will first fall to the top of the second guide plate 28 of the uppermost buffer assembly, and then roll forward and downward along the slope of the second guide plate 28 to the top of the third guide plate 29, and so on, until the grape grains 5 roll to the top of the first guide plate 211, thereby preventing the grape grains 5 from being broken due to a large drop; the grape grains 5 located on the top of the first guide plate 211 will continue to move forward and downward. In the above process, the pulp hardening solution flowing through the second guide plate 28, the third guide plate 29 and the first guide plate 211 will drip downward through the multiple second through holes 281, the multiple third through holes 291 and the multiple first through holes 211, and then all fall into the liquid receiving chamber 511 for recovery;

[0072] Then, at a certain time interval, the telescopic end of each of the remaining electric cylinders 25 is driven to extend outward from the front to the back in turn, so that the grape grains 5 and the pulp hardening solution in each of the remaining soaking tanks 23 are pushed upward in the same way. The pushed-up grape grains 5 are also driven forward and downward by the flowing pulp hardening solution, so that the grape grains 5 are effectively prevented from flowing into the next process in large quantities at one time;

[0073] The reduction motor 311 in the power mechanism is started to rotate its rotating shaft, and then the traction shaft 33 is driven to rotate with the help of the first pulley 312, the second pulley 313 and the belt 314, so that the cylinder 31 and each spoke plate 35 are driven to rotate clockwise with the help of the support plate 32; when the grape grains 5 leave the top front edge of the first guide plate 211, they will fall into a draining trough 37 located below it and rotate clockwise with the draining trough 37, so that the grape grains 5 can be distributed to each draining trough 37 in turn for batch processing;

[0074] When the draining trough 37 rotates to the top of the openings of the two liquid receiving boxes 36, the residual pulp hardening solution entrained in the grape granules 5 will fall downward into the two liquid receiving boxes 36 through the plurality of drainage holes 3101 located at the draining trough 37 and flow back into the liquid receiving chamber 511 through the interface pipe 55 and the hose 57;

[0075] When the opening of the draining trough 37 is rotated to the downward position, the opening of the draining trough 37 is just located above the material guide trough 4, and the grape grains 5 in the draining trough 37 will be poured into the material guide trough 4 and continue to move forward along the slope of the material guide trough 4. Finally, the operator can collect the grape grains 5 at the front opening of the material guide trough 4.

[0076] The pulp hardening solution that falls into the liquid receiving chamber 511 is inevitably mixed with pulp residues. The pulp hardening solution in the liquid receiving chamber 511 will flow into the clear liquid chamber 512 through the multiple filter holes 561 in the filter plate 56, but the pulp residue will be retained in the liquid receiving chamber 511 by the filter plate 56. The pulp hardening solution extracted by the circulating pump 52 after working comes from the clear liquid chamber 512, which can effectively prevent the pulp residue from mixing into the next batch of grapes 5.

[0077] A grape pulp production method for reducing fruit breakage rate comprises the following steps:

[0078] S1: performing pre-treatment steps on the grape 5 in sequence, including de-branching, de-skinning and de-seeding;

[0079] S11: Delimbing

[0080] Use a soft brush to wash and thresh, and use a drum-type stem remover to remove the platycodon on the grape 5;

[0081] S12: Peeling

[0082] Alkaline solution, alcohol and peeling agent are mixed to prepare mixed solution A, which is used for soaking and peeling grapes 5;

[0083] S13: Seeding

[0084] The peeled grapes 5 are punched with a pitting machine and the grape seeds are removed by vibration;

[0085] S2: Immersion Hardening

[0086] Calcium ions and color preservatives are mixed to form a mixed solution B, and the grape pulp is hardened by continuous immersion;

[0087] S21: placing the seeded grapes 5 on the top of the loading block 21 and pushing the grapes 5 into each soaking tank 23 so that each soaking tank 23 is filled with grapes 5 at a certain density;

[0088] S22: Pour a certain amount of mixed solution B into the liquid storage box 51, start the circulation pump 52 in the circulation component 5 to output the mixed solution B to the top of the material loading block 21 and flow into each immersion tank 23 in turn, and shut down the circulation pump 52 when each immersion tank 23 is filled, so that the grapes 5 are immersed in the pulp hardening solution;

[0089] S23: After soaking for a certain period of time, the circulation pump 52 is started again to continuously flow the pulp hardening solution to the top of the loading block 21 and continue to flow forward and downward along the top slope of the loading block 21. Then, at a certain time interval, the telescopic end of each electric cylinder 25 is driven to extend outward from the front to the back in turn to push the grapes 5 and the mixed solution B in each soaking tank 23 upward. The grapes 5 pushed up are also driven forward and downward by the flowing mixed solution B, which effectively avoids the grapes 5 from flowing into the next process in large quantities at one time.

[0090] S24: After the grape granules 5 and the mixed solution B leave the top of the material loading block 21, they will pass through the top of the second material guide plate 28 and the third material guide plate 29 in each buffer assembly from top to bottom, until they roll down to the top of the first material guide plate 211. The grape granules 5 on the top of the first material guide plate 211 will continue to move forward and downward, while the mixed solution B will all fall into the liquid receiving chamber 511 for recovery;

[0091] S25: The draining cage is driven to rotate by means of a power mechanism; when the grape grains 5 leave the top front edge of the first guide plate 211, they fall into a draining trough 37 located below it and rotate clockwise with the draining trough 37, so that the grape grains 5 can be distributed to each draining trough 37 in turn for batch processing;

[0092] S26: When the draining trough 37 rotates to above the top openings of the two liquid receiving boxes 36, the residual pulp hardening solution entrained in the grape granules 5 will fall downward into the two liquid receiving boxes 36 through the plurality of drainage holes 3101 located at the draining trough 37 and flow back into the liquid receiving chamber 511 through the interface pipe 55 and the hose 57;

[0093] S27: When the opening of the draining trough 37 is rotated to the downward position, the opening of the draining trough 37 is just located above the material guide trough 4, and the grape grains 5 in the draining trough 37 are all poured into the material guide trough 4 and continue to move forward along the slope of the material guide trough 4. Finally, the operator can collect the grape grains 5 at the front opening of the material guide trough 4.

[0094] S3: Screening and disinfection

[0095] Remove defective products such as residual cores, branches, residual skin, black spots, etc. through light irradiation; use 4-10ppm ozone disinfection for 2-8 minutes to effectively inhibit microorganisms;

[0096] S4: Soup preparation, soup addition, sterilization

[0097] Add sugar and different concentrations of calcium ions, and adjust the amount of calcium ions added according to the maturity of the raw materials; use low-temperature long-time sterilization technology (78-84℃, 15-25 minutes). Compared with traditional canning sterilization conditions (84-88℃, 15-20 minutes), low-temperature sterilization is more conducive to maintaining product flavor, while improving calcium ion penetration, avoiding meat softening, and enhancing hardening effect;

[0098] S5: Filling and freezing

[0099] The process of canning before freezing is adopted to improve the pulp yield of frozen grapes. For example, the pulp yield of Kyoho grapes can be increased by 40% after being canned through the hardening process and then frozen.

[0100] The top of each support block 22 of the present invention can form a immersion tank 23 with a variable volume between the inner wall of the top opening of a corresponding slot hole 2101 on the loading block 21, and a large number of grape grains 5 to be hardened are dispersed and immersed in the pulp hardening solution located in each immersion tank 23, thereby greatly reducing the use of the pulp hardening solution and significantly reducing the processing cost; when the grape pulp is soaked, each pushing unit can be used to push the grape grains 5 and the pulp hardening solution in each immersion tank 23 upward to the top of the loading block 21 at a certain time interval, and the slope and the flow force of the pulp hardening solution are used to push the grape grains 5 to be automatically transferred to the draining component 3 in batches, and finally automatically transferred to the guide trough 4 in batches by the rotation of the draining cage, thereby simplifying the operation process and improving work efficiency; and because the grape grains 5 move in batches at equal intervals during the above transfer process, the grape grains 5 will not be too crowded, thereby effectively preventing the grape grains 5 from being crushed, thereby further reducing the fruit breakage rate.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grape pulp hardening device for reducing the fruit breakage rate, characterized in that: It comprises a box body, and a soaking component, a draining component and a material guide trough which are arranged on the box body and are sequentially distributed from the back to the front along the direction of the material, and the material guide trough is arranged with the front lower and the back higher; The immersion assembly includes a loading block arranged inside the top opening of the box body, a shunt pipe which is laterally and rotatably connected to the inside of the top opening of the box body and located above the rear side of the loading block, and a plurality of liquid outlet pipes which are plugged into the shunt pipe and are arranged at equal intervals from left to right and are interconnected with the inside of the shunt pipe. The top of the loading block is arranged low in the front and high in the back. The left and right outer walls of the loading block are respectively sealed and fixed to the left and right inner walls of the top opening of the box body. The end opening of each of the liquid outlet pipes is inclined toward the front and downward to match the top inclination of the loading block. Both ends of the liquid outlet pipe are closed. The soaking assembly also includes a plurality of pushing units arranged between the box body and the material loading block and distributed sequentially from front to back, the pushing units include a supporting block that is movably and sealedly interspersed in the material loading block to have an up and down lifting function, and an electric cylinder fixed inside the box body and located below the supporting block, the telescopic end of the electric cylinder is vertically arranged upward and fixed to the bottom of the supporting block, and the height of the supporting blocks in the plurality of pushing units increases sequentially from front to back to adapt to the top slope of the material loading block; The draining assembly comprises a draining cage which is laterally and rotatably connected to the box body and a power mechanism which is arranged between the box body and the draining cage to drive the draining cage to rotate.

2. A grape pulp hardening device for reducing fruit breakage rate according to claim 1, characterized in that: A plurality of slots extending vertically and arranged in sequence from front to back are provided between the top outer wall and the bottom outer wall of the loading block, the number of the slots being equal to the number of the supporting blocks, each of the supporting blocks being movably and sealedly inserted in a corresponding slot, a connecting slope which matches the slope of the top of the loading block being formed on the top of each supporting block, and a immersion tank with a variable volume being formed between the connecting slope on each supporting block and the inner wall at the top opening of a corresponding slot.

3. The grape pulp hardening device for reducing the fruit breakage rate according to claim 1, characterized in that: A notch cavity is formed at the top front corner of the box body, a discharge hole is opened on the rear inner wall of the notch cavity, the drain cage is arranged in the notch cavity and in front of the discharge hole, the soaking component also includes a first material guide plate which is lower in front and higher in the back and is inclined in the discharge hole, the rear side of the first material guide plate is fixed on the front outer wall of the loading block, the top front edge of the first material guide plate cooperates with the drain cage, and a plurality of first through holes are opened in the first material guide plate.

4. The grape pulp hardening device for reducing the fruit breakage rate according to claim 3, characterized in that: The draining cage includes two cantilevers fixed on the inner wall of the rear side of the cavity and symmetrically arranged on the left and right, a cylinder body arranged laterally between the two cantilevers, a plurality of spoke plates fixed on the outer peripheral surface of the cylinder body and evenly arranged at equal angles in the circumferential direction, a support plate concentrically fixed at the center position inside the cylinder body, and a traction shaft concentrically inserted and fixed in the support plate, and the left and right ends of the traction shaft are rotatably connected to the two cantilevers respectively.

5. The grape pulp hardening device for reducing the fruit breakage rate according to claim 4, characterized in that: The drain cage also includes two side retaining rings which are concentrically fixed on the left and right ends of the cylinder body, and the left and right sides of each spoke plate are sealed and fixed on the inner walls of the two side retaining rings. A drain groove is formed between any two adjacent spoke plates and the two side retaining rings. The inner diameter of the side retaining ring is equal to the inner diameter of the cylinder body, and the outer diameter of the side retaining ring is larger than the outer diameter of the cylinder body.

6. The grape pulp hardening device for reducing the fruit breakage rate according to claim 4, characterized in that: The support plate divides the interior of the cylinder into two cylindrical cavities symmetrically arranged on the left and right. The drain cage also includes two liquid receiving boxes respectively arranged in the two cylindrical cavities and both located above the traction shaft. Each of the liquid receiving boxes is fixed on a cantilever on the same side. The top opening of the liquid receiving box cooperates with the inner wall of the cylinder. A plurality of drainage hole combinations uniformly distributed at equal angles in a circumferential direction are provided on the outer circumferential surface of the cylinder. The drainage hole combination includes a plurality of drainage holes equally spaced from left to right.

7. The grape pulp hardening device for reducing the fruit breakage rate according to claim 6, characterized in that: A circulation component is also provided between the draining cage and the soaking component, and the circulation component includes a liquid storage box fixed inside the box body and a filter plate vertically fixed inside the liquid storage box, the filter plate divides the interior of the liquid storage box into a liquid receiving chamber and a clear liquid chamber respectively arranged front and back, the top opening of the liquid receiving chamber is arranged below the first material guide plate and the draining cage, a plurality of filter holes are provided between the front and rear outer walls of the filter plate, a plurality of interface pipes are also plugged into the bottom of each of the liquid receiving boxes, each of the interface pipes is also connected to a hose, and the end openings of each of the hoses are interconnected with the interior of the liquid receiving chamber.

8. The grape pulp hardening device for reducing the fruit breakage rate according to claim 7, characterized in that: The circulation component also includes a circulation pump, a reflux pipe and a liquid inlet pipe, one end of the reflux pipe and one end of the liquid inlet pipe are respectively connected to the liquid inlet and liquid outlet of the circulation pump, the other end of the reflux pipe is plugged into one side of the liquid storage box and communicated with the interior of the clear liquid tank, and one end of the liquid inlet pipe is plugged into the shunt pipe and communicated with the interior of the shunt pipe.

9. The grape pulp hardening device for reducing the fruit breakage rate according to claim 3, characterized in that: At least one buffer combination is provided above the first material guide plate and is distributed in sequence from top to bottom, the buffer combination includes a second material guide plate which is arranged low in the front and high in the back, and a third material guide plate which is arranged high in the front and low in the back and is provided below the second material guide plate, the rear side of the second material guide plate is fixed to the front outer wall of the loading block, the front side of the second material guide plate is spaced a certain distance from the front inner wall of the box body, the front side of the third material guide plate is fixed to the front inner wall of the box body, the rear side of the third material guide plate is spaced a certain distance from the front outer wall of the loading block; a plurality of second through holes are provided in the second material guide plate, and a plurality of third through holes are provided in the third material guide plate.

10. The method for producing grape pulp with reduced fruit breakage rate according to claim 1, characterized in that: The following steps are involved: S1: performing pre-treatment steps on grapes in sequence, including de-branching, de-skinning and de-seeding; S11: Delimbing Use soft brush to wash and thresh, and use drum destemmer to remove the platycodon on grapes; S12: Peeling Alkaline solution, alcohol and peeling agent are mixed to prepare mixed solution A, which is used for soaking and peeling grapes; S13: Seeding Use a pitting machine to punch holes in the peeled grapes and remove the grape seeds by vibration; S2: Immersion Hardening Calcium ions and color preservatives are mixed to form a mixed solution B, and the grape pulp is hardened by continuous immersion; S21: placing the seeded grapes on the top of the loading block, and pushing the grapes into each soaking tank, so that each soaking tank is filled with grapes at a certain density; S22: pouring a certain amount of mixed solution B into the liquid storage box, starting the circulation pump in the circulation component to output the mixed solution B to the top of the loading block and flow into each immersion tank in turn, and shutting off the circulation pump when each immersion tank is filled, so that the grapes are immersed in the pulp hardening solution; S23: After soaking for a certain period of time, the circulation pump is started again to continuously flow the pulp hardening solution to the top of the loading block and continue to flow forward and downward along the top slope of the loading block. Then, at a certain time interval, the telescopic end of each electric cylinder is driven to extend outward from the front to the back in turn to push the grapes and the mixed solution B in each soaking tank upward. The grapes pushed up are also driven forward and downward by the flowing mixed solution B, which effectively avoids the grapes from flowing into the next process in large quantities at one time. S24: After the grapes and the mixed solution B leave the top of the loading block, they will pass through the top of the second guide plate and the third guide plate in each buffer assembly from top to bottom in turn until they roll down to the top of the first guide plate. The grapes on the top of the first guide plate will continue to move forward and downward, while the mixed solution B will all fall into the liquid receiving chamber for recovery; S25: The draining cage is driven to rotate by means of a power mechanism; when the grape grains leave the top front edge of the first guide plate, they fall into a draining trough located below it and rotate clockwise with the draining trough, so that the grape grains can be distributed to each draining trough in turn for batch processing; S26: When the draining trough rotates to above the top openings of the two liquid receiving boxes, the residual pulp hardening solution entrained in the grapes will fall downward into the two liquid receiving boxes through a plurality of drainage holes located at the draining trough and flow back into the liquid receiving chamber through the interface pipe and the hose; S27: When the opening of the draining trough is rotated to a downward position, the opening of the draining trough is just above the guide trough, and the grapes in the draining trough are all poured into the guide trough and continue to move forward along the slope of the guide trough. Finally, the operator can collect the grapes at the front opening of the guide trough 4. S3: Screening and disinfection Remove defective products such as residual cores, branches, residual skin, black spots, etc. through light irradiation; use 4-10ppm ozone disinfection for 2-8 minutes to effectively inhibit microorganisms; S4: Soup preparation, soup addition, sterilization Add sugar and different concentrations of calcium ions, and adjust the amount of calcium ions added according to the maturity of the raw materials; use low-temperature long-time sterilization technology (78-84℃, 15-25 minutes). Compared with traditional canning sterilization conditions (84-88℃, 15-20 minutes), low-temperature sterilization is more conducive to maintaining product flavor, while improving calcium ion penetration, avoiding meat softening, and enhancing hardening effect; S5: Filling and freezing The process of canning before freezing is adopted to improve the yield of grape pulp after freezing.

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