A device for reducing the rate of fruit breakage and a method for producing the same

Abstract

The present application relates to a kind of grape flesh hardening device of reducing fruit breaking rate and its production method, including box and be distributed from back to front in turn along material direction and be located in box and drain assembly and guide chute of soaking component;Soaking component includes being located in the inside of the top opening of box load block, transverse and can be rotated and be connected in the inside of the top opening of box and be located in the above of the rear side of load block and shunt pipe, and multiple plug-in and be set from left to right in shunt pipe and from left to right in shunt pipe and be mutually communicated with the inside of shunt pipe and liquid outlet pipe;Soaking component further includes multiple and be located between box and load block and from front to back in turn distribution and push material unit;Drain assembly includes transverse and can be rotated and be connected on the box and drain cage and be located between box and drain cage to drive drain cage rotation power mechanism;The present application greatly reduces the use amount of flesh hardening solution to significantly reduce processing cost, simplify the operation process to improve work efficiency, further reduce fruit breaking rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit food processing, and particularly relates to a grape pulp hardening device for reducing fruit breakage rate and a production method thereof. BACKGROUND

[0002] Grape cans are instant foods processed by special technology with grapes as main raw materials. At present, the grape varieties for making grape cans are mainly Kyoho and Sunlight Rose. The grape varieties for making frozen pulp are mainly Kyoho and Sunlight Rose. Kyoho has strong storage and transportation capacity, which is beneficial to maintaining the freshness and quality of grapes, but is prone to fruit cracking. Kyoho is favored due to its high soluble solids content (15%-20%) and storage and transportation resistance, but is not heat-resistant and has great flavor change.

[0003] In the production process of grape cans, it is crucial to maintain the original shape and necessary crispness. However, the pulp of Kyoho and Kyoho is prone to breakage during hardening and other processing, which leads to high fruit breakage rate. The broken pulp affects the taste and appearance, has low utilization rate, and thus causes great loss of raw materials. In order to reduce the loss of raw materials, it is necessary to carry out crispness preservation and hardening treatment on the grape pulp.

[0004] The existing grape pulp crispness preservation and hardening method is to put a large number of grape pulps into a large container at one time, pour the prepared pulp hardening solution into the container to soak the grape pulps, and then manually fish out the hardened grape pulps with a sieve when the soaking time is sufficient. The above method is complicated in operation process, has low work efficiency, and the grape pulps are easily crushed during pouring and taking out, which further affects the fruit breakage rate. In addition, the use amount of pulp hardening solution is large, the processing cost is high, and it is urgent to be solved. SUMMARY

[0005] In view of the above status of the prior art, the technical problem to be solved by the present application is to provide a grape pulp hardening device for reducing fruit breakage rate and a production method thereof, which greatly reduces the use amount of pulp hardening solution to significantly reduce the processing cost, simplifies the operation process to improve the work efficiency, and further reduces the fruit breakage rate.

[0006] The technical scheme adopted by the present application to solve the above technical problem is as follows: a grape pulp hardening device for reducing fruit breakage rate, characterized in that it comprises a box body and an immersion assembly, a draining assembly and a guide chute arranged on the box body and sequentially distributed from back to front along the material flow direction, and the guide chute is arranged with a low front and a high back.

[0007] The soaking assembly comprises a carrier block arranged inside the top opening of the box body, a shunt pipe transversely and rotatably connected inside the top opening of the box body and located above the rear side of the carrier block, and a plurality of liquid outlet pipes plugged on the shunt pipe and arranged at equal intervals from left to right and in sequence, and each of which is in communication with the inside of the shunt pipe. The top of the carrier block is arranged with a front low and a rear high. The left and right outer walls of the carrier block are respectively sealed and fixed on the left and right inner walls of the top opening of the box body. The end opening of each liquid outlet pipe is arranged with a front and downward inclination to match the top slope of the carrier block. The two ends of the liquid outlet pipe are closed.

[0008] The soaking assembly further comprises a plurality of pushing units arranged between the box body and the carrier block and distributed in sequence from front to back. The pushing unit comprises a carrier block movably and sealingly inserted into the carrier block to have an up-and-down lifting function, and an electric cylinder fixed inside the box body and located below the carrier block. The telescopic end of the electric cylinder is arranged vertically upward and fixed on the bottom of the carrier block. The height of the carrier block in the plurality of pushing units increases in sequence from front to back to adapt to the top slope of the carrier block.

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

[0010] Preferably, a plurality of vertical grooves arranged in sequence from front to back are formed between the top outer wall and the bottom outer wall of the carrier block. The number of the grooves is equal to the number of the carrier blocks. Each carrier block is movably and sealingly inserted into a corresponding groove. The top of each carrier block is formed with an engaging slope matching the top slope of the carrier block. A variable-volume soaking groove is formed between the engaging slope on each carrier block and the inner wall of the top opening of the corresponding groove.

[0011] Preferably, a notch cavity is formed at the front corner of the top of the box body. A discharge hole is formed in the rear inner wall of the notch cavity. The draining cage is arranged in the notch cavity and located in front of the discharge hole. The soaking assembly further comprises a first guide plate inclined in the discharge hole with a front low and a rear high. The rear side of the first guide plate is fixed on the front outer wall of the carrier block. The top front edge of the first guide plate matches the draining cage. A plurality of first through holes are formed in the first guide plate.

[0012] Preferably, the draining cage comprises two cantilevers fixed on the rear inner wall of the notch cavity and arranged symmetrically left and right, a cylinder transversely arranged between the two cantilevers, a plurality of radial plates fixed on the outer circumferential surface of the cylinder and arranged at equal angles in the circumferential direction, a support plate concentrically fixed at the central position inside the cylinder, and a traction shaft concentrically and movably fixed in the support plate. The left and right ends of the traction shaft are rotatably connected to the two cantilevers, respectively.

[0013] Preferably, the draining cage further includes two side baffle rings that are concentrically fixed to the left and right ends of the cylinder, and the left and right sides of each spoke are respectively sealed and fixed to the inner walls of the two side baffle rings. A draining groove is formed between any two adjacent spokes and the two side baffle rings. The inner diameter of the side baffle ring is equal to the inner diameter of the cylinder, and the outer diameter of the side baffle ring is larger than the outer diameter of the cylinder.

[0014] Preferably, the support plate divides the interior of the cylinder into two symmetrically arranged cylindrical cavities. The draining cage also includes two liquid receiving boxes, each located inside one of the two cylindrical cavities and above the traction shaft. Each liquid receiving box 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. The outer circumferential surface of the cylinder is provided with a plurality of drainage holes evenly distributed at equal angles along the circumferential direction. The drainage hole combination includes a plurality of drainage holes evenly spaced from left to right.

[0015] Preferably, a circulation component is provided between the draining cage and the soaking component. The circulation component includes a liquid storage box fixed inside the box 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 arranged at the front and rear respectively. The top opening of the liquid receiving chamber is located below the first guide plate and the draining cage. Multiple filter holes are opened between the front and rear outer walls of the filter plate. Several interface pipes are also inserted into the bottom of each liquid receiving box. Each interface pipe is connected to a flexible hose. The end opening of each flexible hose is connected to the interior of the liquid receiving chamber.

[0016] Preferably, the circulation assembly further includes a circulation pump, a return pipe, and an inlet pipe. One end of the return pipe and one end of the inlet pipe are respectively connected to the inlet and outlet of the circulation pump. The other end of the return pipe is inserted into one side of the storage box and communicates with the interior of the clear liquid chamber. One end of the inlet pipe is inserted into the diversion pipe and communicates with the interior of the diversion pipe.

[0017] Preferably, at least one buffer assembly is provided above the first guide plate, arranged sequentially from top to bottom. The buffer assembly includes a second guide plate with a lower front and a higher rear, and a third guide plate with a higher front and a lower rear, located below the second guide plate. The rear side of the second guide plate is fixed to the front outer wall of the material block, and the front side of the second guide plate is spaced a certain distance from the front inner wall of the box. The front side of the third guide plate is fixed to the front inner wall of the box, and the rear side of the third guide plate is spaced a certain distance from the front outer wall of the material block. The second guide plate has multiple second through holes, and the third guide plate has multiple third through holes.

[0018] A method for producing grape pulp with reduced fruit breakage rate, characterized by comprising the following steps:

[0019] S1: Perform pretreatment steps on the grapes in sequence, including debranching, peeling and deseeding;

[0020] S11: Detachment treatment

[0021] The grapes are threshed using a soft-bristled brush and a drum-type destemming machine to remove the stems from the grapes.

[0022] S12: Peeling process

[0023] A mixed solution A is prepared by mixing alkali, alcohol, and peeling agent, and used for soaking and peeling grape berries;

[0024] S13: Seed removal process

[0025] A seeding machine is used to punch holes in the peeled grapes and remove the seeds by vibration.

[0026] S2: Immersion hardening

[0027] Calcium ions and color-protecting agents were mixed to prepare mixed solution B, and grape pulp was hardened by continuous soaking.

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

[0029] S22: Pour a certain amount of mixed solution B into the storage box, start the circulation pump in the circulation assembly to make mixed solution B output to the top of the loading block and flow into each soaking tank in sequence. When each soaking tank is full, turn off the circulation pump so that the grapes are submerged in the pulp hardening solution.

[0030] S23: After soaking for a certain period of time, the circulation pump is restarted 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 certain time intervals, the telescopic ends of each electric cylinder are driven outward from front to back to push the grapes and mixed solution B in each soaking tank upward. The grapes pushed up are also carried forward and downward by the flowing mixed solution B. This effectively avoids the large-scale flow of grapes into the next process at one time.

[0031] S24: After the grapes and mixed solution B leave the top of the loading block, they will pass from top to bottom through the top of the second and third guide plates in each buffer assembly until they roll 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 fall into the receiving chamber for recycling.

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

[0033] S26: When the draining trough rotates to the top opening of the two liquid receiving boxes, the residual hardened pulp solution entrained in the grapes will fall down into the two liquid receiving boxes through multiple drain holes located at the draining trough and flow back into the liquid receiving chamber through the interface pipe and hose.

[0034] S27: When the opening of the drain trough is rotated to the downward position, the opening of the drain trough is located above the guide trough. The grapes in the drain trough will be 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 residual fruit pits, branches, bark residue, and black spots by irradiating with light; disinfect with 4-10 ppm ozone for 2-8 minutes to effectively inhibit microorganisms;

[0037] S4: Prepare soup, add broth, sterilize.

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

[0039] S5: Filling and Freezing

[0040] By employing a process of first processing the grapes into cans and then freezing them, the yield of the frozen grape pulp is increased.

[0041] Compared with the prior art, the advantages of the present invention are as follows: Each material support block of the present invention forms a variable-volume soaking tank between its top and the inner wall of the corresponding slot opening on the material carrier block. A large batch of grapes to be hardened are dispersed and immersed in the fruit hardening solution located in each soaking tank, thus greatly reducing the amount of fruit hardening solution used and significantly lowering processing costs. After the grape pulp is soaked, each pushing unit can sequentially push the grapes and fruit hardening solution from each soaking tank upwards to the top of the material carrier block at certain time intervals. The slope and the flow force of the fruit hardening solution then automatically transfer the grapes in batches to the draining assembly. Finally, the rotation of the draining cage automatically transfers them in batches to the guide trough 4, thereby simplifying the operation process and improving work efficiency. Since the grapes move in batches at equal intervals during the above transfer process, they are not overcrowded, effectively preventing them from being crushed and further reducing the breakage rate. Attached Figure Description

[0042] Fig. 1 This is a structural diagram of the left front side of the present invention;

[0043] Fig. 2 This is a left-side cross-sectional view of the present invention;

[0044] Fig. 3 This is a left-side cross-sectional view of the drain cage of the present invention;

[0045] Fig. 4 This is an exploded view of the left front side of the drain cage of the present invention. Detailed Implementation

[0046] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only 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 merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0047] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0048] like Figs. 1-4 As shown, a grape pulp hardening device for reducing fruit breakage rate includes a box 1 and an soaking component 2, a draining component 3 and a guide trough 4 arranged on the box 1 and distributed sequentially from back to front along the material direction. The guide trough 4 is arranged with the front lower than the back.

[0049] The soaking assembly 2 includes a material-carrying block 21 located inside the top opening of the box 1, a diversion pipe 26 connected laterally and rotatably inside the top opening of the box 1 and located above the rear side of the material-carrying block 21, and multiple outlet pipes 27 inserted into the diversion pipes 26 and arranged at equal intervals from left to right, all of which are interconnected with the inside of the diversion pipes 26. The top of the material-carrying block 21 is set with the front lower and the back higher. The left and right outer walls of the material-carrying block 21 are respectively sealed and fixed to the left and right inner walls of the top opening of the box 1. The end opening of each outlet pipe 27 is inclined forward and downward to match the top slope of the material-carrying block 21. Both ends of the outlet pipe 27 are closed.

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

[0051] The draining assembly 3 includes a draining cage that is laterally and rotatably connected to the housing 1, and a power mechanism located between the housing 1 and the draining cage to drive the draining cage to rotate.

[0052] Multiple vertical slots 2101 are provided between the top and bottom outer walls of the material carrier block 21 and are arranged sequentially from front to back. The number of slots 2101 is equal to the number of material support blocks 22. Each material support block 22 is movably and sealedly inserted into a corresponding slot 2101. The top of each material support block 22 has a connecting slope 221 that matches the slope of the top of the material carrier block 21. A variable volume soaking tank 23 is formed between the connecting slope 221 on each material support block 22 and the inner wall of the top opening of the corresponding slot 2101.

[0053] A notch 101 is formed at the front corner of the top of the box 1. A discharge hole 102 is provided on the inner rear wall of the notch 101. The draining cage is located in the notch 101 and in front of the discharge hole 102. The soaking assembly 2 also includes a first guide plate 211 that is inclined in the discharge hole 102 with a lower front and a higher rear. The rear side of the first guide plate 211 is fixed to the outer front wall of the material block 21. The top front edge of the first guide plate 211 cooperates with the draining cage. A plurality of first through holes 2111 are provided in the first guide plate 211.

[0054] The draining cage includes two cantilever arms 310 fixed to the rear inner wall of the notch 101 and arranged symmetrically on the left and right, a cylinder 31 arranged transversely between the two cantilever arms 310, a plurality of spokes 35 fixed to the outer circumferential surface of the cylinder 31 and arranged at equal angles along 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. The left and right ends of the traction shaft 33 are rotatably connected to the two cantilever arms 310 respectively.

[0055] The draining cage also includes two side baffle rings 34 that are concentrically fixed at the left and right ends of the cylinder 31. The left and right sides of each spoke 35 are sealed and fixed on the inner walls of the two side baffle rings 34 respectively. A draining groove 37 is formed between any two adjacent spokes 35 and the two side baffle rings 34. The inner diameter of the side baffle ring 34 is equal to the inner diameter of the cylinder 31, and the outer diameter of the side baffle 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 symmetrically arranged cylindrical cavities 39. The draining cage also includes two liquid receiving boxes 36, which are respectively located inside the two cylindrical cavities 39 and 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. Multiple drainage holes are evenly distributed at equal angles along the circumferential direction on the outer circumferential surface of the cylinder 31. The drainage hole combination includes multiple 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 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 at the front and rear. The top opening of the liquid receiving chamber 511 is located below the first guide plate 211 and the draining cage. Multiple filter holes 561 are opened between the front and rear outer walls of the filter plate 56.

[0058] The circulation assembly 5 also includes a circulation pump 52, a return pipe 54, and an inlet pipe 53. One end of the return pipe 54 and one end of the inlet pipe 53 are respectively connected to the inlet and outlet of the circulation pump 52. The other end of the return pipe 54 is inserted into one side of the storage box 51 and communicates with the interior of the clear liquid chamber 512. One end of the inlet pipe 53 is inserted into the diversion pipe 26 and communicates with the interior of the diversion pipe 26.

[0059] Each liquid receiving box 36 has several interface tubes 55 inserted into its bottom, and each interface tube 55 is connected to a flexible tube 57. The opening at the end of each flexible tube 57 is connected to the interior of the liquid receiving chamber 511.

[0060] Above the first guide plate 211, there is at least one buffer assembly arranged from top to bottom. The buffer assembly includes a second guide plate 28 with a lower front and a higher rear, and a third guide plate 29 with a higher front and a lower rear, located below the second guide plate 28. The rear side of the second guide plate 28 is fixed to the front outer wall of the material 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 1. The front side of the third guide plate 29 is fixed to the front inner wall of the box 1, and the rear side of the third guide plate 29 is spaced a certain distance from the front outer wall of the material block 21.

[0061] The second guide plate 28 has multiple second through holes 281, and the third guide plate 29 has multiple third through holes 291.

[0062] Each spoke 35 also has a flange 351 formed at its end edge, which is set in the direction of rotation of the cylinder 31.

[0063] The top of the material block 21 is also fixed with a vertical stop 210 located behind the diversion pipe 26. The left and right sides of the stop 210 are respectively sealed and fixed to the inner walls of the left and right sides of the box 1.

[0064] The power mechanism includes a geared motor 311 fixed on the outer wall of the housing 1, a first pulley 312 concentrically fixed on the rotating shaft of the geared 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] Each material support block 22 is also fitted with a sealing sleeve 24 on its top outer wall. The outer wall of the sealing sleeve 24 slides against the inner wall of the slot 2101 to achieve a sliding and sealed connection between the material support block 22 and the slot 2101.

[0066] Working principle:

[0067] The telescopic ends of the electric cylinders 25 in each pusher unit are retracted inward to drive each material support block 22 to move downward, thereby forming a variable volume soaking tank 23 between the connecting inclined surface 221 on each material support block 22 and the inner wall of the top opening of the corresponding slot 2101.

[0068] The deseeded grapes 5 are placed on 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. This greatly saves the amount of pulp hardening solution used and reduces costs.

[0069] A certain amount of fruit pulp hardening solution is poured into the storage box 51. The circulation pump 52 in the circulation assembly 5 is started so that the fruit pulp hardening solution enters the diversion pipe 26 through the return pipe 54 and the inlet pipe 53 in sequence. Then, it is output to the top of the material block 21 through each outlet pipe 27 and flows into each soaking tank 23 in sequence. When each soaking tank 23 is full, the circulation pump 52 is turned off, so that the grapes 5 are submerged in the fruit pulp hardening solution. The excess fruit pulp hardening solution will flow forward along the top slope of the material block 21 and fall into the receiving chamber 511 to prevent waste.

[0070] After soaking for a certain period of time, the circulation pump 52 is restarted 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, the telescopic end of the foremost electric cylinder 25 is driven to extend outward to move the material support block 22 upward until the front and rear edges of the connecting slope 221 are flush with the front and rear edges of the top opening of the slot 2101. This pushes the grapes 5 and the pulp hardening solution in the soaking tank 23 upward and makes the volume of the soaking tank 23 become 0. The grapes 5 that are pushed up are then carried forward and downward by the flowing pulp hardening solution.

[0071] After the grapes 5 and the pulp hardening solution leave the top of the carrier block 21, they will first fall to the top of the second guide plate 28 of the uppermost buffer assembly, and then roll down the slope of the second guide plate 28 to the top of the third guide plate 29, and so on, until the grapes 5 roll down to the top of the first guide plate 211. This prevents the grapes 5 from breaking due to the large drop. The grapes 5 located on the top of the first guide plate 211 will continue to move down. During 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 down through multiple second through holes 281, multiple third through holes 291 and multiple first through holes 2111, and then all of them will fall into the liquid receiving chamber 511 for recycling.

[0072] Then, at certain time intervals, the telescopic ends of each of the remaining electric cylinders 25 are driven outward in sequence from front to back to push the grapes 5 and the pulp hardening solution in each of the remaining soaking tanks 23 upward in the same way. The grapes 5 that are pushed up are also carried forward and downward by the flowing pulp hardening solution. This effectively avoids the large-scale flow of grapes 5 into the next process at one time.

[0073] The geared motor 311 in the power mechanism is started to rotate its rotating shaft, which in turn drives the traction shaft 33 to rotate via the first pulley 312, the second pulley 313 and the belt 314. This, in turn, drives the cylinder 31 and each spoke 35 to rotate clockwise via the support plate 32. When the grapes 5 leave the top front edge of the first guide plate 211, they will fall into a drain trough 37 located below it and rotate clockwise with the drain trough 37. This allows the grapes 5 to be distributed into each drain trough 37 in batches for processing.

[0074] When the draining trough 37 rotates to the top opening of the two liquid receiving boxes 36, the residual hardened pulp solution entrained in the grape berries 5 will fall down into the two liquid receiving boxes 36 through multiple 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 drain trough 37 is rotated to a downward position, the opening of the drain trough 37 is located above the guide trough 4. The grapes 5 in the drain trough 37 will be completely poured into the guide trough 4 and continue to move forward along the slope of the guide trough 4. Finally, the operator can collect the grapes 5 at the front opening of the guide trough 4.

[0076] The hardened pulp solution falling into the receiving chamber 511 inevitably contains pulp residue. The hardened pulp solution in the receiving chamber 511 will flow through multiple filter holes 561 in the filter plate 56 to the clearing chamber 512, but the pulp residue will be trapped in the receiving chamber 511 by the filter plate 56. The hardened pulp solution drawn by the circulating pump 52 after it starts working comes from the clearing chamber 512, which can effectively prevent pulp residue from being mixed into the next batch of grapes 5.

[0077] A method for producing grape pulp with reduced fruit breakage rate includes the following steps:

[0078] S1: Perform pretreatment steps on grape berries 5 in sequence, including debranching, peeling and deseeding;

[0079] S11: Detachment treatment

[0080] The grapes were threshed using a soft-bristled brush and a drum-type destemming machine to remove the stems from the grape berries.

[0081] S12: Peeling process

[0082] A mixed solution A is prepared by mixing alkali, alcohol, and peeling agent, and used for soaking and peeling grape berries 5.

[0083] S13: Seed removal process

[0084] A seeding machine is used to punch holes in the peeled grapes (5), and the seeds are removed by vibration.

[0085] S2: Immersion hardening

[0086] Calcium ions and color-protecting agents were mixed to prepare mixed solution B, and grape pulp was hardened by continuous soaking.

[0087] S21: Place the seedless grapes 5 on top of the carrier block 21 and push 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 storage box 51, start the circulation pump 52 in the circulation component 5 to output the mixed solution B to the top of the loading block 21 and flow into each soaking tank 23 in sequence. When each soaking tank 23 is full, turn off the circulation pump 52 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 restarted 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 certain time intervals, the telescopic ends of each electric cylinder 25 are driven outward from front to back to push the grapes 5 and the mixed solution B in each soaking tank 23 upward. The grapes 5 that are pushed up are also carried forward and downward by the flowing mixed solution B. This effectively avoids the large-scale flow of grapes 5 into the next process at one time.

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

[0091] S25: Drive the draining cage to rotate with the help of the power mechanism; when the grapes 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 grapes 5 can be distributed into each draining trough 37 in batches for processing.

[0092] S26: When the draining trough 37 rotates to the top opening of the two liquid receiving boxes 36, the residual hardened pulp solution entrained in the grape berries 5 will fall down into the two liquid receiving boxes 36 through multiple drain 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 drain trough 37 is rotated to the downward position, the opening of the drain trough 37 is located above the guide trough 4. The grapes 5 in the drain trough 37 will be completely poured into the guide trough 4 and continue to move forward along the slope of the guide trough 4. Finally, the operator can collect the grapes 5 at the front opening of the guide trough 4.

[0094] S3: Screening and disinfection

[0095] Remove residual fruit pits, branches, bark residue, and black spots by irradiating with light; disinfect with 4-10 ppm ozone for 2-8 minutes to effectively inhibit microorganisms;

[0096] S4: Prepare soup, add broth, sterilize.

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

[0098] S5: Filling and Freezing

[0099] By employing a process of first processing the grapes into canned fruit and then freezing them, the yield of the frozen grape pulp can be increased. For example, when Kyoho grapes are processed into canned fruit through a hardening process and then frozen, the yield of the pulp can be increased by 40%.

[0100] In this invention, the top of each material support block 22 forms a variable-volume soaking tank 23 between the top of the corresponding slot 2101 on the material carrier block 21 and the inner wall of the top opening. A large batch of grapes 5 to be hardened are dispersed and immersed in the fruit pulp hardening solution located in each soaking tank 23, which greatly reduces the amount of fruit pulp hardening solution used and significantly reduces processing costs. After the grape pulp is soaked, each pushing unit can push the grapes 5 and fruit pulp hardening solution in each soaking tank 23 outward to the top of the material carrier block 21 at certain time intervals. The slope and the flow force of the fruit pulp hardening solution push the grapes 5 to be automatically transferred in batches to the draining component 3. Finally, the rotation of the draining cage automatically transfers them to the guide trough 4, thereby simplifying the operation process and improving work efficiency. Since the grapes 5 move in batches at equal intervals during the above transfer process, the grapes 5 will not be too crowded, which can effectively prevent the grapes 5 from being crushed, thereby further reducing the fruit breakage rate. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for hardening grape pulp to reduce fruit breakage rate, characterized in that, It includes a box body and soaking components, draining components and a material guide trough arranged on the box body and distributed sequentially from back to front along the material direction, wherein the material guide trough is arranged with a lower front and a higher back; The soaking assembly includes a material-carrying block located inside the top opening of the tank, a diversion pipe horizontally and rotatably connected to the top opening of the tank and located above and behind the material-carrying block, and multiple outlet pipes inserted into the diversion pipes and arranged at equal intervals from left to right, all of which are interconnected with the inside of the diversion pipes. The top of the material-carrying block is set with the front lower than the back. The left and right outer walls of the material-carrying block are respectively sealed and fixed to the left and right inner walls of the top opening of the tank. The end opening of each outlet pipe is inclined forward and downward to match the top slope of the material-carrying block. Both ends of the outlet pipe are closed. The soaking assembly also includes multiple pushing units arranged between the tank and the material block and distributed sequentially from front to back. Each pushing unit includes a material support block that is movably and sealedly inserted into the material block to have the function of lifting up and down, and an electric cylinder fixed inside the tank and located below the material support block. The telescopic end of the electric cylinder is vertically upward and fixed to the bottom of the material support block. The height of the material support block in the multiple pushing units increases sequentially from front to back to adapt to the top slope of the material block. The draining assembly includes a draining cage that is horizontally and rotatably connected to the box body, and a power mechanism located between the box body and the draining cage to drive the draining cage to rotate. The material carrier block has multiple vertically oriented slots arranged sequentially from front to back between its top and bottom outer walls. The number of slots is equal to the number of material support blocks. Each material support block is movably and sealedly inserted into a corresponding slot. The top of each material support block has a connecting slope that matches the slope of the top of the material carrier block. The connecting slope on each material support block and the inner wall of the top opening of the corresponding slot form a soaking tank with variable volume.

2. The grape pulp hardening device for reducing fruit breakage rate according to claim 1, characterized in that, A notch is formed at the front corner of the top of the box. A discharge hole is provided on the rear inner wall of the notch. The draining cage is located in the notch and in front of the discharge hole. The soaking assembly also includes a first guide plate that is inclined in the discharge hole with a lower front and a higher rear. The rear side of the first guide plate is fixed to the front outer wall of the material block. The top front edge of the first guide plate cooperates with the draining cage. Multiple first through holes are provided in the first guide plate.

3. The grape pulp hardening device for reducing fruit breakage rate according to claim 2, characterized in that, The draining cage includes two cantilever arms fixed to the rear inner wall of the notch and arranged symmetrically on the left and right, a cylinder arranged laterally between the two cantilever arms, multiple spokes fixed to the outer circumference of the cylinder and arranged at equal angles in sequence along the circumference, a support plate concentrically fixed at the center position inside the cylinder, and a traction shaft concentrically inserted and fixed in the support plate. The left and right ends of the traction shaft are rotatably connected to the two cantilever arms respectively.

4. The grape pulp hardening device for reducing fruit breakage rate according to claim 3, characterized in that, The draining cage also includes two side baffle rings that are concentrically fixed to the left and right ends of the cylinder. The left and right sides of each spoke are sealed and fixed to the inner walls of the two side baffle rings. A draining groove is formed between any two adjacent spokes and the two side baffle rings. The inner diameter of the side baffle ring is equal to the inner diameter of the cylinder, and the outer diameter of the side baffle ring is greater than the outer diameter of the cylinder.

5. A grape pulp hardening device for reducing fruit breakage rate according to claim 3, characterized in that, The support plate divides the interior of the cylinder into two symmetrically arranged cylindrical cavities. The draining cage also includes two liquid receiving boxes located inside the two cylindrical cavities and above the traction shaft. Each liquid receiving box 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. The outer circumferential surface of the cylinder is provided with a plurality of drainage holes evenly distributed at equal angles along the circumferential direction. The drainage hole combination includes a plurality of drainage holes evenly spaced from left to right.

6. A grape pulp hardening device for reducing fruit breakage rate according to claim 5, characterized in that, A circulation component is also provided between the draining cage and the soaking component. The circulation component includes a liquid storage box fixed inside the box 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 arranged at the front and rear respectively. The top opening of the liquid receiving chamber is located below the first guide plate and the draining cage. Multiple filter holes are opened between the front and rear outer walls of the filter plate. Several interface pipes are also inserted into the bottom of each liquid receiving box. Each interface pipe is connected to a flexible hose. The end opening of each flexible hose is connected to the interior of the liquid receiving chamber.

7. A grape pulp hardening device for reducing fruit breakage rate according to claim 6, characterized in that, The circulation assembly also includes a circulation pump, a return pipe, and an inlet pipe. One end of the return pipe and one end of the inlet pipe are respectively connected to the inlet and outlet of the circulation pump. The other end of the return pipe is inserted into one side of the storage box and communicates with the interior of the clear liquid chamber. One end of the inlet pipe is inserted into the diversion pipe and communicates with the interior of the diversion pipe.

8. A grape pulp hardening device for reducing fruit breakage rate according to claim 2, characterized in that, Above the first guide plate, there is at least one buffer assembly arranged from top to bottom. The buffer assembly includes a second guide plate with a lower front and a higher rear, and a third guide plate with a higher front and a lower rear, located below the second guide plate. The rear side of the second guide plate is fixed to the front outer wall of the material block, and the front side of the second guide plate is spaced a certain distance from the front inner wall of the box. The front side of the third guide plate is fixed to the front inner wall of the box, and the rear side of the third guide plate is spaced a certain distance from the front outer wall of the material block. The second guide plate has multiple second through holes, and the third guide plate has multiple third through holes.

9. A method for producing grape pulp with reduced fruit breakage rate according to claim 1, characterized in that, Includes the following steps: S1: Perform pretreatment steps on the grapes in sequence, including debranching, peeling and deseeding; S11: Detachment treatment The grapes are threshed using a soft-bristled brush and a drum-type destemming machine to remove the stems from the grapes. S12: Peeling process A mixed solution A is prepared by mixing alkali, alcohol, and peeling agent, and used for soaking and peeling grape berries; S13: Seed removal process A seeding machine is used to punch holes in the peeled grapes and remove the seeds by vibration. S2: Immersion hardening Calcium ions and color-protecting agents were mixed to prepare mixed solution B, and grape pulp was hardened by continuous soaking. S21: Place the seeded grapes on top of the loading block and push the grapes into each soaking tank so that each soaking tank is filled with grapes at a certain density; S22: Pour a certain amount of mixed solution B into the storage box, start the circulation pump in the circulation assembly to make mixed solution B output to the top of the loading block and flow into each soaking tank in sequence. When each soaking tank is full, turn off the circulation pump so that the grapes are submerged in the pulp hardening solution. S23: After soaking for a certain period of time, the circulation pump is restarted 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 certain time intervals, the telescopic ends of each electric cylinder are driven outward from front to back to push the grapes and mixed solution B in each soaking tank upward. The grapes pushed up are also carried forward and downward by the flowing mixed solution B. This effectively avoids the large-scale flow of grapes into the next process at one time. S24: After the grapes and mixed solution B leave the top of the loading block, they will pass from top to bottom through the top of the second and third guide plates in each buffer assembly until they roll 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 fall into the receiving chamber for recycling. S25: The draining cage is driven to rotate by a power mechanism; after the grapes leave the top front edge of the first guide plate, they will fall into a draining trough located below it and rotate clockwise with the draining trough, so that the grapes can be distributed into each draining trough in batches for processing. S26: When the draining trough rotates to the top opening of the two liquid receiving boxes, the residual hardened pulp solution entrained in the grapes will fall down into the two liquid receiving boxes through multiple drain holes located at the draining trough and flow back into the liquid receiving chamber through the interface pipe and hose. S27: When the opening of the drain trough is rotated to the downward position, the opening of the drain trough is located above the guide trough. The grapes in the drain trough will be 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 residual fruit pits, branches, bark residue, and black spots by irradiating with light; disinfect with 4-10 ppm ozone for 2-8 minutes to effectively inhibit microorganisms; S4: Prepare soup, add broth, sterilize. Add white sugar and calcium ions of different concentrations, and adjust the amount of calcium ions added according to the maturity of the raw materials; adopt low-temperature long-time sterilization technology (78-84℃, 15-25 minutes). Compared with the traditional canning sterilization conditions (84-88℃, 15-20 minutes), low-temperature sterilization is more conducive to maintaining the product flavor, while improving calcium ion penetration, avoiding meat softening, and enhancing the hardening effect. S5: The filling and freezing process adopts a process of first processing the grapes into cans and then freezing them, which improves the yield of grape pulp after freezing.

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