Processing and preparing method of macadamia nut-fruit mixed can

Abstract

The invention relates to the technical field of fruit can processing, and particularly discloses a macadamia nut-fruit mixed can processing preparation method, which comprises: taking fresh macadamia nuts, placing on a cutting mechanism, and carrying out non-thorough ring cutting; putting the girdled macadamia nuts into hot water for heating; quickly cooling the heated macadamia nuts; the cooled macadamia nuts are placed on a pressing mechanism to be pressed, shells are opened, and kernels are taken; putting the kernels into hot water, adding acid or enzyme, respectively heating, and then cleaning; adding orange slices or yellow peaches and the cleaned nuts into a canning container in a layered manner, and then adding sweet water or clear water for sealing; and sterilizing the canned food to obtain a finished product of the canned food. The prepared can is good in freshness, macadamia nuts in the can are complete, and the can is clear.

Description

Technical Field

[0001] The present invention relates to the technical field of canned fruit processing, and particularly relates to a processing and preparation method for macadamia nut-fruit mixed cans. Background Art

[0002] Macadamia nuts, also known as Hawaiian nuts and Lincang nuts, are native to Australia and are widely planted in places such as Lincang, Yunnan, China. They are round or oval in shape, with a hard brown shell and milky white kernels. The kernels have a delicate and crispy texture, with a natural buttery flavor and a slightly sweet taste, and are rich in nutritional components such as healthy fats (monounsaturated fatty acids).

[0003] Canned fruits are fruit products preserved through processing, sealing, and sterilization. They can not only extend the shelf life but also retain the flavor and nutrition of the fruits. Common canned fruits on the market include yellow peaches and orange segment canned fruits in syrup, which are sour, sweet, and refreshing, and are traditional and popular canned foods. The nutritional components of canned fruits formed by pure orange segments are relatively single. If macadamia nuts are added to form a more nutritious mixed can with orange segments, it will have a broader market prospect.

[0004] Fresh macadamia nuts have a crispy texture, but because they are not easy to preserve, fresh fruits must be used when making mixed cans. However, the current shelling and kernel extraction tools on the market are designed for dried macadamia nuts - after drying, the kernels are completely separated from the shells, and using existing equipment will not damage the kernels. The kernels of fresh macadamia nuts are tightly combined with the shells, and existing shelling equipment will damage the integrity of the kernels, resulting in poor commercial quality of the canned products.

[0005] When preparing macadamia nut-fruit mixed cans, traditional processes mostly use dried macadamia nuts (the sound of the kernels separating from the shells can be heard when shaken), but this kind of aged raw material is not suitable for mixed cans. The kernels of fresh macadamia nuts are firmly adhered to the shells. The current method of kernel extraction requires first cutting the shell and then forcibly separating the kernels, which easily leads to kernel fragmentation and cannot meet the requirements of high-quality cans. If the kernels of steamed macadamia nuts are directly mixed with orange segments or yellow peaches, it will cause the canned soup to be turbid and the transparency to decrease. At the same time, the arrangement of the kernels and orange segments is messy, affecting the aesthetic appearance of the product.

[0006] Therefore, in the process of preparing macadamia nut-fruit mixed cans, there are problems such as insufficient freshness, many fragmented macadamia nuts, and lack of clarity. Summary of the Invention

[0007] In order to solve the problems existing in the process of preparing macadamia nut-fruit mixed cans, the present invention provides a processing and preparation method for macadamia nut-fruit mixed cans, which has the characteristics of good freshness of the prepared cans, relatively complete macadamia nut kernels inside, and relatively clear cans.

[0008] Technical solution of the present invention: A processing and preparation method for macadamia nut - fruit mixed canned food, comprising the following steps,

[0009] (S01) Place fresh macadamia nuts on a cutting mechanism for non - penetrating circumferential cutting;

[0010] (S02) Place the macadamia nuts after circumferential cutting in step (S01) in hot water for heat treatment;

[0011] (S03) Rapidly cool the macadamia nuts heated in step (S02);

[0012] (S04) Place the macadamia nuts cooled in step (S03) on a pressing mechanism for pressing to open the shell and obtain the kernels;

[0013] (S05) Place the kernels in step (S04) in hot water, add acid or enzyme respectively, heat them and then wash them;

[0014] (S06) Take orange segments or yellow peaches and the kernels washed in step (S05), add them in layers in a canned container, and then add sugar water or clear water and seal the lid;

[0015] (S07) Sterilize the canned cans in step (S06) to obtain the canned finished products. The present invention selects fresh macadamia nuts to ensure the freshness of the kernels, thereby ensuring the taste and freshness of the finally prepared mixed canned finished products; the present invention uses a cutting mechanism to perform non-penetrating circumferential cutting on fresh macadamia nuts, and adopts a semi-automatic method to complete the non-penetrating circumferential cutting of fresh macadamia nuts, which has a high circumferential cutting efficiency and can also more accurately control the circumferential cutting depth of the shell. While ensuring that the shell is circumferentially cut to an appropriate depth, it avoids damaging the kernel; the present invention places the circumferentially cut macadamia nuts in hot water for heating, which can soften the shell fibers and expand the circumferential cutting gap, facilitating subsequent shelling; quickly cool the heated macadamia nuts, and the thermal expansion and contraction separate the shell from the kernel, reducing the difficulty of subsequent pressing to break the shell; the present invention places the cooled macadamia nuts on a pressing mechanism for pressing, which can quickly press and break the shell from the circumferential cutting position to obtain relatively complete kernels, providing fresh and beautiful raw materials for the subsequent preparation of mixed canned finished products; the present invention places the kernels in hot water and heats them with acid or enzyme respectively. Adding acid can effectively remove the brown seed coat of the kernel and ensure the whiteness of the kernel. Adding enzyme can effectively decompose the starch and protein on the kernel, preventing the starch and protein precipitates from being introduced after mixing with orange segments, and ensuring the clarity of the finally prepared mixed canned finished products; rinse the kernels with running water until they are neutral to avoid the influence of residual acid or enzyme on the canned flavor; layer the orange segments or yellow peaches and the washed kernels in a canned container, specifically one layer of kernels and one layer of orange segments or yellow peaches, and fill the tank layer by layer. Finally, control the proportion of kernels in the tank to be 5% - 40%. While ensuring the rich nutrition of the canned finished products, control the cost of the canned; the layer-by-layer addition method can also ensure that the internal arrangement and mixing of the canned finished products are relatively regular, improving the aesthetic degree of the canned finished products; add sugar water or clear water to the reserved top gap of 5 - 8 mm and then seal the lid; sterilize the canned cans finally to obtain the canned finished products, further ensuring the quality of the canned finished products and extending the storage time; the present invention solves the industry problem of taking out the whole macadamia nut kernel during the preparation of mixed canned food, and improves the added value of the canned; acid / enzyme treatment removes the starch and protein decomposed during the boiling process of the kernel, ensuring the clear color of the finally prepared canned finished products, and can also appropriately improve the taste of the kernel, further improving the overall taste of the finally canned finished products.

[0016] Preferably, the circumferential cutting in step (S01) is tool circumferential cutting or laser circumferential cutting. Tool circumferential cutting has a lower cost. The hard alloy tool rotating at a high speed is used to perform circular cutting on the shell of macadamia nuts, and the rotation speed is controlled at 2000 - 2500 rpm, and the cutting depth is 1.2 - 1.5 mm (the shell thickness is about 1.8 mm); laser circumferential cutting is non-contact circumferential cutting, with zero mechanical stress, which can well ensure that the kernel integrity rate > 99%, is accurate and controllable, the laser spot can be adjusted to 0.1 mm, suitable for different sizes of macadamia nuts, and the power is controlled at 80 - 100 W and the pulse frequency is 20 kHz during the laser cutting process.

[0017] Preferably, the circumferential cutting depth in the step (S01) is 1 / 2 to 3 / 4 of the shell thickness. The defined circumferential cutting depth can take into account not damaging the kernel and quickly cracking the shell subsequently.

[0018] Preferably, the heat treatment time in the step (S02) is 2 min to 15 min. More preferably, the heat treatment time in the step (S02) is 4 min to 12 min. More preferably, the heat treatment time in the step (S02) is 6 min to 10 min. The defined heat treatment time can, while ensuring softening of the outer shell fibers and expanding the circumferential cutting gap for subsequent shell opening, take into account timeliness.

[0019] Preferably, the heat treatment temperature in the step (S02) is 70°C to 100°C. More preferably, the heat treatment temperature in the step (S02) is 75°C to 95°C. More preferably, the heat treatment temperature in the step (S02) is 80°C to 90°C. More preferably, the heat treatment temperature in the step (S02) is 85°C. The defined heat treatment temperature can better soften the outer shell fibers and expand the circumferential cutting gap.

[0020] Preferably, the cooling temperature in the step (S03) is -30°C to -10°C. More preferably, the cooling temperature in the step (S03) is -25°C to -15°C. More preferably, the cooling temperature in the step (S03) is -20°C. The defined cooling temperature can achieve a rapid cooling effect on the heated macadamia nuts, quickly realize the separation of the outer shell and the kernel after thermal expansion and contraction, and reduce the difficulty of subsequent pressing to crack the shell.

[0021] Preferably, the acid in the step (S05) is a food-grade hydrochloric acid solution with a mass concentration of 0.1% to 3% or a citric acid solution with a mass concentration of 0.5% to 2%. More preferably, the acid in the step (S05) is a food-grade hydrochloric acid solution with a mass concentration of 0.5% to 2.5% or a citric acid solution with a mass concentration of 0.8% to 1.5%. More preferably, the acid in the step (S05) is a food-grade hydrochloric acid solution with a mass concentration of 1% to 2% or a citric acid solution with a mass concentration of 1% to 1.2%. The food-grade hydrochloric acid solution and citric acid solution with defined concentrations can well remove the brown seed coat of the kernel and ensure the whiteness of the kernel.

[0022] Preferably, the heat treatment temperature for adding acid in the step (S05) is 60°C to 95°C. More preferably, the heat treatment temperature for adding acid in the step (S05) is 65°C to 90°C. More preferably, the heat treatment temperature for adding acid in the step (S05) is 70°C to 85°C. More preferably, the heat treatment temperature for adding acid in the step (S05) is 75°C to 80°C. The defined heat treatment temperature can better promote the removal of the brown seed coat on the surface of the kernel by the acid and ensure the whiteness of the kernel.

[0023] Preferably, the heat treatment time with acid addition in step (S05) is 2 min to 10 min. More preferably, the heat treatment time with acid addition in step (S05) is 4 min to 8 min. Even more preferably, the heat treatment time with acid addition in step (S05) is 6 min. The defined heat treatment time can ensure that the acid fully removes the brown seed coat on the nut kernel while taking into account timeliness.

[0024] Preferably, the enzymes in step (S05) are amylase and protease. Amylase can well decompose the starch on the nut kernel, and protease can well decompose the protein on the nut kernel, preventing the subsequent substitution of starch and protein precipitates after mixing with orange segments, and ensuring the clarity of the final canned mixed product.

[0025] Preferably, the addition amount of the amylase is 0.05% to 0.2%. More preferably, the addition amount of the amylase is 0.08% to 0.15%. Even more preferably, the addition amount of the amylase is 0.1% to 0.12%. Defining the addition amount of amylase can ensure that the starch on the nut kernel is fully decomposed while not excessively affecting the quality of the canned product.

[0026] Preferably, the treatment temperature after adding the amylase is 30°C to 70°C. More preferably, the treatment temperature after adding the amylase is 35°C to 65°C. Even more preferably, the treatment temperature after adding the amylase is 40°C to 60°C. More preferably, the treatment temperature after adding the amylase is 45°C to 55°C. Even more preferably, the treatment temperature after adding the amylase is 50°C. The defined treatment temperature can better ensure the activity of amylase, enabling amylase to quickly and fully decompose the starch on the nut kernel.

[0027] Preferably, the treatment time after adding the amylase is 2 min to 40 min. More preferably, the treatment time after adding the amylase is 5 min to 35 min. Even more preferably, the treatment time after adding the amylase is 10 min to 30 min. More preferably, the treatment time after adding the amylase is 15 min to 25 min. Even more preferably, the treatment time after adding the amylase is 20 min. The defined treatment time can ensure that the amylase fully decomposes the starch on the nut kernel while taking into account timeliness.

[0028] Preferably, the addition amount of the protease is 0.1% to 0.3%. More preferably, the addition amount of the protease is 0.2%. Defining the addition amount of protease can ensure that the protein on the nut kernel is fully decomposed while not excessively affecting the quality of the canned product.

[0029] Preferably, the treatment temperature after adding the protease is 30°C to 60°C. More preferably, the treatment temperature after adding the protease is 35°C to 55°C. Preferably, the treatment temperature after adding the protease is 40°C to 50°C. Preferably, the treatment temperature after adding the protease is 45°C. The defined treatment temperature can better ensure the activity of the protease, enabling the protease to quickly and fully decompose the protein on the nuts.

[0030] Preferably, the treatment time after adding the protease is 3 min to 60 min. More preferably, the treatment time after adding the protease is 5 min to 55 min. More preferably, the treatment time after adding the protease is 10 min to 50 min. More preferably, the treatment time after adding the protease is 15 min to 45 min. More preferably, the treatment time after adding the protease is 20 min to 40 min. More preferably, the treatment time after adding the protease is 25 min to 35 min. More preferably, the treatment time after adding the protease is 30 min. The defined treatment time takes into account the timeliness while ensuring that the protease fully decomposes the protein on the nuts.

[0031] Preferably, the amount of nuts added in step (S06) accounts for 5% to 40% in the canned container. More preferably, the amount of nuts added in step (S06) accounts for 10% to 35% in the canned container. More preferably, the amount of nuts added in step (S06) accounts for 15% to 30% in the canned container. More preferably, the amount of nuts added in step (S06) accounts for 20% to 25% in the canned container. The defined amount of nuts added can control the cost of the canned food while ensuring that the finished canned food is rich in nutrition.

[0032] Preferably, the sterilization in step (S07) is pasteurization or boiling sterilization. Both pasteurization and boiling sterilization can effectively kill the bacteria inside and outside the can, further ensuring the quality of the finished canned food and extending the storage time.

[0033] Preferably, the temperature of pasteurization is 60°C to 95°C. More preferably, the temperature of pasteurization is 65°C to 90°C. More preferably, the temperature of pasteurization is 70°C to 85°C. More preferably, the temperature of pasteurization is 75°C to 80°C. The defined temperature can better ensure the pasteurization effect and quickly kill the bacteria inside and outside the can.

[0034] Preferably, the pasteurization time is 30 min to 60 min. More preferably, the pasteurization time is 35 min to 55 min. More preferably, the pasteurization time is 40 min to 50 min. More preferably, the pasteurization time is 45 min. The defined sterilization time takes into account timeliness while ensuring the complete elimination of bacteria inside and outside the cans.

[0035] Preferably, the cutting mechanism is a laser cutting mechanism or a saw blade cutting mechanism. The laser cutting mechanism and the saw blade cutting mechanism can be flexibly selected according to actual needs; the advantages of the laser cutting mechanism are non-contact circumferential cutting, zero mechanical stress, which can well ensure that the nut kernel integrity rate > 99%, precise and controllable, and the laser spot can be adjusted to 0.1 mm, suitable for macadamia nuts of different sizes; the advantages of the saw blade cutting mechanism are lower cost.

[0036] Preferably, the laser cutting mechanism includes a first cutting platform, on which a laser cutter is adjustably provided, and a first nut shell clamping mechanism is adjustably provided on the first cutting platform, and the nut shell clamping part of the first nut shell clamping mechanism corresponds to the laser cutting part of the laser cutter. The first cutting platform provides overall support for the circumferential cutting process of the whole fresh macadamia nut; the laser cutter is adjustably arranged on the first cutting platform, and by adjusting the position of the laser cutter on the first cutting platform, the circumferential cutting point of the fresh macadamia nut can be accurately controlled to ensure the accuracy of circumferential cutting on the fresh macadamia nut; the circumferential cutting of the fresh macadamia nut by the laser cutter is non-contact circumferential cutting, zero mechanical stress, which can well ensure that the nut kernel integrity rate > 99%, precise and controllable, and the laser spot can be adjusted to 0.1 mm, suitable for macadamia nuts of different sizes; a first nut shell clamping mechanism is adjustably provided on the first cutting platform, and the first nut shell clamping mechanism can stably clamp the fresh macadamia nut and drive the fresh macadamia nut to rotate at a constant speed during the specific process, and cooperate with the cutting point of the laser cutter to realize efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nut; by adjusting the position of the first nut shell clamping mechanism on the first cutting platform, the accurate cooperation with the cutting point of the laser cutter can be flexibly realized to achieve efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nut; when the circumferential cutting is completed, adjust the first nut shell clamping mechanism to withdraw, remove the circumferentially cut fresh macadamia nut, replace it with a new fresh macadamia nut, and repeat the movement and circumferential cutting process of the first nut shell clamping mechanism, and the whole circumferential cutting has good stability.

[0037] Preferably, the laser cutter includes a laser cutting main body which is arranged to be adjusted vertically relative to the first cutting platform. A laser head is provided on the laser cutting main body, and the laser emission position of the laser head corresponds to the nut shell clamping position of the first nut shell clamping mechanism. The laser cutting main body controls the power and pulse frequency of the entire laser cutting process, which is precisely controllable and can well ensure that the kernel integrity rate > 99%. By adjusting the position of the laser cutting main body on the first cutting platform, the circumferential cutting point of the fresh macadamia nut can be accurately controlled, ensuring the accuracy of circumferential cutting on the fresh macadamia nut. The laser head can accurately align with the fresh macadamia nut and precisely align the laser cutting point in the middle of the fresh macadamia nut.

[0038] Preferably, a first slide rail is provided on the first cutting platform, and a first sliding frame is slidably adjusted on the first slide rail. The laser cutting main body is arranged on the first sliding frame. By steplessly adjusting the position of the first sliding frame on the first slide rail, the circumferential cutting point of the laser head on the fresh macadamia nut can be accurately controlled, ensuring the accuracy of circumferential cutting on the fresh macadamia nut.

[0039] Preferably, a first adjusting screw hole is provided on the first sliding frame, and a first adjusting bolt is threadedly connected in the first adjusting screw hole. The adjusting end of the first adjusting bolt corresponds to the first slide rail in a tightness manner. By adjusting the rotation process of the first adjusting bolt in the first adjusting screw hole, the locking and unlocking of the first sliding frame on the first slide rail can be achieved at any time, realizing the stepless adjustment of the position of the first sliding frame on the first slide rail.

[0040] Preferably, at least one second slide rail is provided on the first cutting platform, and a second sliding frame is slidably adjusted on the second slide rail. The first nut shell clamping mechanism is arranged on the second sliding frame. By steplessly adjusting the position of the second sliding frame on the second slide rail, the stepless movement of the first nut shell clamping mechanism relative to the first cutting platform can be driven, flexibly realizing the accurate cooperation with the cutting point of the laser cutter, and achieving efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nut.

[0041] Preferably, a second adjusting screw hole is provided on the second sliding frame, and a second adjusting bolt is threadedly connected in the second adjusting screw hole. The adjusting end of the second adjusting bolt corresponds to the second slide rail in a tightness manner. By adjusting the rotation process of the second adjusting bolt in the second adjusting screw hole, the locking and unlocking of the second sliding frame on the second slide rail can be achieved at any time, realizing the stepless adjustment of the position of the second sliding frame on the second slide rail.

[0042] Preferably, the first nut shell clamping mechanism includes a first fixture base disposed on the second sliding frame. A first driving motor is provided on the first fixture base. A first driving shaft is provided at the driving end of the first driving motor. A set of first thread segments with opposite thread directions are provided on the first driving shaft. A set of first nut shell clamping components are adjustably provided on the first fixture base. The set of first nut shell clamping components corresponds to the set of first thread segments. The first nut shell clamping components are threadedly connected to the corresponding first thread segments. The laser emission point of the laser head corresponds to the nut shell clamping point of the first nut shell clamping components. The first fixture base provides an installation position for the first nut shell clamping components to clamp macadamia nuts. The first fixture base moves with the second sliding frame to flexibly achieve accurate cooperation with the cutting point of the laser cutter. The first driving motor provides power for the set of first nut shell clamping components to move relatively closer and farther away on the first fixture base, achieving clamping and loosening of macadamia nuts. The first driving shaft rotates forward and backward driven by the first driving motor. A set of first thread segments with opposite thread directions on the first driving shaft rotate forward and backward simultaneously, precisely achieving clamping and loosening of macadamia nuts. A set of first nut shell clamping components cooperate with the set of first thread segments. When the set of first thread segments rotate forward and backward, the threads drive the set of first nut shell clamping components to move closer and farther away, achieving clamping and loosening of macadamia nuts. The process of clamping and loosening macadamia nuts by screw adjustment has better accuracy and can better control the clamping force.

[0043] Preferably, the first nut shell clamping component includes a first sliding block. A first sliding track is provided on the first fixture base. The first sliding block is slidably disposed on the first sliding track. A first threaded hole is provided on the first sliding block. The first threaded hole is threadedly connected to the corresponding first thread segment. A first connecting segment is provided on the first sliding block. A first clamping block is rotatably provided at the end of the first connecting segment away from the first sliding block. A first rotating motor is provided on at least one of the first connecting segments. The driving end of the first rotating motor is connected to the first clamping block. The laser head corresponds to the relative clamping position of the two first clamping blocks. The two first sliding blocks slide relatively on the first sliding track, driving the two first clamping blocks to move relatively closer and farther away, stably achieving clamping and loosening of macadamia nuts. The first threaded hole on the first sliding block is threadedly connected to the corresponding first thread segment. By using the screw adjustment method, the clamping and loosening process of macadamia nuts can be achieved with good control of the force. The first connecting segment provides an installation position for the first clamping block, guiding the first clamping block to the outside of the first fixture base, making it more convenient to adjust and correspond to the cutting point of the laser cutter. The two first clamping blocks can stably achieve the clamping and loosening process of macadamia nuts. The first rotating motor drives the first clamping block to rotate stably, cooperating with the cutting point of the laser cutter to achieve efficient and accurate non-penetrating circumferential cutting of fresh macadamia nuts.

[0044] Preferably, a first recessed portion is provided on the first clamping block, and the recessed shape of the first recessed portion is adapted to the shape of the macadamia nut shell. The recessed shape of the first recessed portion is adapted to the shape of the macadamia nut shell. After the two first recessed portions cooperate, stable clamping of the macadamia nut shell can be achieved, preventing rotation during circumferential cutting.

[0045] Preferably, a plurality of first strip-shaped grooves are provided at the first recessed portion. The plurality of first strip-shaped grooves cooperate with the recessed surface of the first recessed portion to achieve more stable clamping of the macadamia nut shell and prevent rotation during circumferential cutting.

[0046] Preferably, the saw blade cutting mechanism includes a second cutting platform, on which a saw blade cutter and a second nut shell clamping mechanism are adjustably provided. The nut shell clamping portion of the second nut shell clamping mechanism corresponds to the saw blade cutting portion of the saw blade cutter, and the nut shell clamping portion of the second nut shell clamping mechanism and the saw blade cutting portion of the saw blade cutter are in a relatively close state. The second cutting platform provides overall support for the circumferential cutting process of the whole fresh macadamia nut; the saw blade cutter is adjustably arranged on the second cutting platform. By adjusting the position of the saw blade cutter on the second cutting platform, the circumferential cutting position of the fresh macadamia nut can be accurately controlled to ensure the accuracy of circumferential cutting on the fresh macadamia nut; the saw blade cutter has a low cost and performs circular cutting on the macadamia nut shell through a high-speed rotating cemented carbide tool, with the rotation speed controlled at 2000 - 2500 rpm and the cutting depth of 1.2 - 1.5 mm; a second nut shell clamping mechanism is adjustably provided on the second cutting platform. The second nut shell clamping mechanism can stably clamp the fresh macadamia nut, drive the fresh macadamia nut to rotate uniformly during the specific process, cooperate with the cutting portion of the saw blade cutter, and achieve efficient, accurate and non-penetrating circumferential cutting of the fresh macadamia nut; by adjusting the position of the second nut shell clamping mechanism on the second cutting platform, accurate cooperation with the cutting portion of the saw blade cutter can be flexibly achieved, and efficient, accurate and non-penetrating circumferential cutting of the fresh macadamia nut can be realized; when the circumferential cutting is completed, the second nut shell clamping mechanism is adjusted to withdraw, the circumferentially cut fresh macadamia nut is taken off, and a new fresh macadamia nut is replaced, and the movement of the second nut shell clamping mechanism and the circumferential cutting process are repeated, and the whole circumferential cutting has good stability; during the whole circumferential cutting process, the nut shell clamping portion of the second nut shell clamping mechanism is always elastically stressed with the saw blade cutting portion of the saw blade cutter to ensure the overall non-penetrating circumferential cutting effect on the fresh macadamia nut.

[0047] Preferably, the saw blade cutter includes a support base, which is adjusted relative to the second cutting platform. An installation shaft is rotatably provided on the support base, and a saw blade is provided on the installation shaft. The cutting position of the saw blade is adjusted relative to the nut shell clamping position of the second nut shell clamping mechanism, and the cutting position of the saw blade and the nut shell clamping position of the second nut shell clamping mechanism are in a relatively close state; a cutting motor is provided on the support base, and the driving end of the cutting motor is connected to the end of the installation shaft. The support base provides an installation position for the cutting and adjusted movement of the entire saw blade; by adjusting the position of the support base on the second cutting platform, the circumferential cutting position of the fresh macadamia nuts can be accurately controlled to ensure the accuracy of the circumferential cutting on the fresh macadamia nuts; the installation shaft drives the saw blade to rotate, and the non-penetrating circumferential cutting of the fresh macadamia nuts is well realized; the cutting position of the saw blade and the nut shell clamping position of the second nut shell clamping mechanism are elastically adjusted. On the one hand, it ensures the cutting force on the fresh macadamia nuts and accurately controls the cutting depth, and tries to cut deeper on the premise of ensuring that the nut shell is not penetrated. On the other hand, during the circumferential cutting, it can stably penetrate under the relatively elastic fitting force to realize the stable circumferential cutting of the fresh macadamia nuts; the cutting motor provides power for the stable cutting process of the saw blade.

[0048] Preferably, a protective shell is adjustably provided on the support base. The saw blade is rotatably provided in the protective shell. A notch is provided on the protective shell, and the saw blade is adjustably provided in the notch. The top of the protective shell is detachably and elastically attached to the second nut shell clamping mechanism. The protective shell can prevent external objects from reaching the saw blade and causing danger, providing protection for the stable cutting of the saw blade; the notch on the protective shell can accurately control the cutting depth of the saw blade on the fresh macadamia nuts, specifically by controlling how much the saw blade extends beyond the notch; the top of the protective shell is elastically and detachably attached to the second nut shell clamping mechanism, and the second nut shell clamping mechanism always has an elastic force that fits the top of the protective shell. This elastic force can well realize the stable penetration of the saw blade into the nut shell during the cutting process, realizing the stable circumferential cutting of the fresh macadamia nuts.

[0049] Preferably, a fifth adjustment screw hole is provided on the protective shell, and a fifth adjustment bolt is threadedly connected in the fifth adjustment screw hole. The adjustment end of the fifth adjustment bolt corresponds to the support base in terms of tightness. By adjusting the rotation process of the fifth adjustment bolt in the fifth adjustment screw hole, the locking and unlocking of the protective shell on the support base can be realized at any time, realizing the stepless adjustment of the protective shell on the support base, thereby accurately controlling the degree to which the saw blade extends beyond the notch and accurately controlling the non-penetrating circumferential cutting of the fresh macadamia nuts.

[0050] Preferably, a third slide rail is provided on the second cutting platform, and a third sliding frame is slidably adjusted on the third slide rail. The support base is provided on the third sliding frame. By steplessly adjusting the position of the third sliding frame on the third slide rail, the circumferential cutting position of the saw blade on the fresh macadamia nuts can be accurately controlled to ensure the accuracy of the circumferential cutting on the fresh macadamia nuts.

[0051] Preferably, a third adjusting screw hole is provided on the third sliding frame, and a third adjusting bolt is threadedly connected in the third adjusting screw hole. The adjusting end of the third adjusting bolt corresponds to the tightness of the third sliding rail. By adjusting the rotation process of the third adjusting bolt in the third adjusting screw hole, the locking and unlocking of the third sliding frame on the third sliding rail can be achieved at any time, and stepless adjustment of the position of the third sliding frame on the third sliding rail can be realized.

[0052] Preferably, at least one fourth sliding rail is provided on the second cutting platform, and a fourth sliding frame is slidably adjusted on the fourth sliding rail. The second nut clamping mechanism is arranged on the fourth sliding frame. By steplessly adjusting the position of the fourth sliding frame on the fourth sliding rail, the stepless movement of the second nut clamping mechanism relative to the second cutting platform can be driven, and the accurate cooperation with the cutting position of the saw blade cutter can be flexibly realized, so as to achieve efficient, accurate and non-penetrating circumcision of fresh macadamia nuts.

[0053] Preferably, a fourth adjusting screw hole is provided on the fourth sliding frame, and a fourth adjusting bolt is threadedly connected in the fourth adjusting screw hole. The adjusting end of the fourth adjusting bolt corresponds to the tightness of the fourth sliding rail. By adjusting the rotation process of the fourth adjusting bolt in the fourth adjusting screw hole, the locking and unlocking of the fourth sliding frame on the fourth sliding rail can be achieved at any time, and stepless adjustment of the position of the fourth sliding frame on the fourth sliding rail can be realized.

[0054] Preferably, a first connecting rod is provided on the fourth sliding rail, a tension spring is connected to the first connecting rod, a second connecting rod is provided on the fourth sliding frame, and the end of the tension spring away from the first connecting rod is connected to the second connecting rod. One end of the first connecting rod is connected to the tension spring, and the other end of the second connecting rod is connected to the tension spring. Under the return acting force of the tension spring, the fourth sliding frame always has a relative sliding acting force on the fourth sliding rail. This acting force can well realize the stable depth of the relative movement of the nut shell relative to the saw blade during the cutting process, and realize the stable non-penetrating elastic circumcision of fresh macadamia nuts. The elastic circumcision can avoid excessive cutting stress from cutting through the nut shell and damaging the kernel.

[0055] Preferably, the second husk clamping mechanism includes a second fixture base disposed on the fourth sliding frame. A second driving motor is provided on the second fixture base. A second driving shaft is provided at the driving end of the second driving motor. A set of second thread segments with opposite thread directions are provided on the second driving shaft. A set of second husk clamping components are adjustably provided on the second fixture base. The set of second husk clamping components corresponds to the set of second thread segments. The second husk clamping components are threadedly connected to the corresponding second thread segments. The cutting position of the saw blade corresponds to the husk clamping position of the second husk clamping components. The second fixture base provides an installation position for the second husk clamping components to clamp the macadamia nuts. The second fixture base moves with the fourth sliding frame, flexibly achieving accurate elastic cooperation with the cutting position of the saw blade cutter. The second driving motor provides power for the relative approach and separation of the set of second husk clamping components on the second fixture base, realizing the clamping and loosening of the macadamia nuts. The second driving shaft rotates forward and backward under the drive of the second driving motor. A set of second thread segments with opposite thread directions on the second driving shaft rotate forward and backward simultaneously, accurately realizing the clamping and loosening of the macadamia nuts. The set of second husk clamping components corresponds and cooperates with the set of second thread segments. When the set of second thread segments rotate forward and backward, the threads drive the set of second husk clamping components to approach and separate, realizing the clamping and loosening of the macadamia nuts. The process of clamping and loosening the macadamia nuts by thread adjustment has better accuracy and can better control the clamping force.

[0056] Preferably, the second husk clamping component includes a second sliding block. A second sliding track is provided on the second fixture base. The second sliding block is slidably disposed on the second sliding track. A second threaded hole is provided on the second sliding block. The second threaded hole is threadedly connected to the corresponding second thread segment. A second connecting segment is provided on the second sliding block. A second clamping block is rotatably provided at the end of the second connecting segment away from the second sliding block. A second rotating motor is provided on at least one second connecting segment. The driving end of the second rotating motor is connected to the second clamping block. The cutting position of the saw blade corresponds to the relative clamping position of the two second clamping blocks. The two second sliding blocks slide relatively on the second sliding track, driving the two second clamping blocks to approach and separate relatively, stably realizing the clamping and loosening of the macadamia nuts. The second threaded hole on the second sliding block is threadedly connected to the corresponding second thread segment. By using the thread adjustment method, the process of clamping and loosening the macadamia nuts can be realized with good control of the force. The second connecting segment provides an installation position for the second clamping block, guiding the second clamping block to the outside of the second fixture base, making it more convenient to adjust and correspond to the cutting position of the saw blade cutter. The two second clamping blocks can well realize the clamping and loosening of the macadamia nuts. The second rotating motor drives the second clamping block to rotate stably, cooperating with the cutting position of the saw blade cutter, realizing efficient and accurate non-penetrating circumferential cutting of fresh macadamia nuts.

[0057] Preferably, a second recessed portion is provided on the second clamping block, and the recessed shape of the second recessed portion is adapted to the shape of the macadamia nut shell. The recessed shape of the second recessed portion is adapted to the shape of the macadamia nut shell. After the two second recessed portions cooperate, stable clamping of the macadamia nut shell can be achieved, preventing rotation during circumcision.

[0058] Preferably, a plurality of second strip-shaped grooves are provided at the second recessed portion. The plurality of second strip-shaped grooves cooperate with the recessed surface of the second recessed portion to achieve more stable clamping of the macadamia nut shell and prevent rotation during circumcision.

[0059] Preferably, the pressing mechanism includes a support frame. A rotating shaft is rotatably provided at the upper part of the support frame. An eccentric wheel is provided on the rotating shaft, and the rotating shaft is inserted at the eccentric surface of the eccentric wheel; a pressure rod is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel, and a pressure platform is provided at the other end of the pressure rod away from the eccentric wheel; a force-receiving platform is provided at the lower part of the support frame, and the force-receiving platform corresponds to the pressure platform. The macadamia nut shell is located between the pressure platform and the force-receiving platform; a return spring is sleeved on the pressure rod, one end of the return spring is connected to the support frame, and the other end of the return spring is connected to the force-receiving end of the pressure rod. The support frame provides stable support for the entire process of pressing and cracking the nut shell; the rotating shaft enables the stable rotation of the eccentric wheel on the support frame; the eccentric rotation of the eccentric wheel provides a suitable pressing force for the process of pressing and cracking the nut shell; the relative movement of the pressure rod on the support frame stably transmits the pressing force brought by the eccentric wheel to the nut shell; the pressure platform and the force-receiving platform cooperate to achieve stable pressing and cracking of the nut shell after non-penetrating circumcision; the return spring always provides a return force for the pressure rod. When the eccentric wheel contacts the eccentric pressure, the return spring drives the pressure rod to return, causing the pressure platform and the force-receiving platform to separate, removing the kernel after cracking, and placing a new nut shell to achieve a new round of pressing and cracking process; the entire pressing process is simple and the pressing and cracking effect is good.

[0060] Preferably, a pressing handle is provided on the rotating ring surface of the eccentric wheel. The pressing handle is used for the operator to apply a rotating force for the rotation of the eccentric wheel.

[0061] Preferably, a force-receiving block is provided at one end of the pressure rod close to the eccentric wheel. The force-receiving block is in contact with the outer ring surface of the eccentric wheel, and one end of the return spring close to the eccentric wheel is connected to the force-receiving block. The force-receiving block cooperates with the outer ring surface of the eccentric wheel to stably receive the pressing force at the outer ring surface of the eccentric wheel.

[0062] Preferably, a second arc-shaped recess is provided on the pressure table, and the shape of the second arc-shaped recess is adapted to the shape of the macadamia nut shell; a first arc-shaped recess is provided on the force-receiving table, and the first arc-shaped recess corresponds to the second arc-shaped recess, and the shape of the first arc-shaped recess is adapted to the shape of the macadamia nut shell. The shape of the second arc-shaped recess is adapted to the shape of the macadamia nut shell, and the shape of the first arc-shaped recess is adapted to the shape of the macadamia nut shell. When the uncut macadamia nut shell after circumcision is semi-wrapped and pressed by the first arc-shaped recess and the second arc-shaped recess, it will not escape from the pressing position due to the pressing force, ensuring the stability of the entire pressing process.

[0063] Preferably, a second arc-shaped rib is provided on the second arc-shaped recess, and the second arc-shaped rib corresponds to the circumcision groove on the macadamia nut shell; a first arc-shaped rib is provided on the first arc-shaped recess, and the first arc-shaped rib corresponds to the circumcision groove on the macadamia nut shell. The second arc-shaped rib corresponds to the circumcision groove on the macadamia nut shell, and the first arc-shaped rib corresponds to the circumcision groove on the macadamia nut shell, so that the circumcision groove is exactly stressed during pressing. When the second arc-shaped rib and the first arc-shaped rib are relatively close, they act as a cutter, causing the nut shell to break into two halves from the circumcision groove, realizing a labor-saving and fast shell-breaking process.

[0064] The present invention has the following beneficial effects:

[0065] (1) Select fresh macadamia nuts to ensure the freshness of the kernels, thereby ensuring the taste and freshness of the final prepared mixed canned finished products;

[0066] (2) Use a cutting mechanism to perform non-penetrating circumcision on fresh macadamia nuts, and adopt a semi-automatic method to complete the non-penetrating circumcision of fresh macadamia nuts, which has a high circumcision efficiency and can more accurately control the circumcision depth of the nut shell. While ensuring that the nut shell is circumcised to an appropriate depth, it avoids damaging the kernels;

[0067] (3) Place the circumcised macadamia nuts in hot water for heating, which can soften the outer shell fibers and expand the circumcision gap, facilitating subsequent shell opening; quickly cool the heated macadamia nuts, and the thermal expansion and contraction separate the outer shell from the kernels, reducing the difficulty of subsequent pressing shell breaking; the present invention places the cooled macadamia nuts on the pressing mechanism for pressing, which can quickly press and break the nut shell from the circumcision position to obtain relatively complete kernels, providing fresh and beautiful raw materials for the subsequent preparation of mixed canned finished products;

[0068] (4) Place the nuts in hot water and heat them separately with acid or enzyme. Adding acid can effectively remove the brown seed coats of the nuts and ensure the whiteness of the nuts. Adding enzyme can decompose the starch and protein on the nuts well, preventing the starch and protein precipitates from being introduced after mixing with orange segments later, and ensuring the clarity of the final canned mixed product. Rinse with running water until the nuts are neutral to avoid the influence of residual acid or enzyme on the canned flavor. Layer the orange segments or yellow peaches and the cleaned nuts in a canned container, specifically, one layer of nuts and one layer of orange segments or yellow peaches, filling the tank layer by layer. Finally, control the proportion of nuts in the tank at 5% - 40%. While ensuring the rich nutrition of the canned finished product, control the cost of the canned food. The layering addition method can also ensure the relatively regular arrangement and mixing inside the canned finished product, improving the aesthetic degree of the canned finished product. Add sugar water or clear water until the reserved headspace is 5 - 8 mm, and then seal the lid. Finally, sterilize the canned cans to obtain the canned finished product, further ensuring the quality of the canned finished product and extending the storage time.

[0069] (5) Solve the industry problem of taking out the whole macadamia nuts during the preparation of mixed canned food, and increase the added value of the canned food; Acid / enzyme treatment removes the starch and protein decomposed during the boiling process of the nuts, ensuring the clear color of the finally prepared canned finished product, and can also appropriately improve the taste of the nuts, further enhancing the overall taste of the finally canned finished product.. Brief Description of the Drawings

[0070] Figure 1 It is the first three-dimensional structure diagram of the laser cutting mechanism of the present invention;

[0071] Figure 2 It is the second three-dimensional structure diagram of the laser cutting mechanism of the present invention;

[0072] Figure 3 It is the third three-dimensional structure diagram of the laser cutting mechanism of the present invention;

[0073] Figure 4 It is the three-dimensional structure diagram of the laser cutting mechanism of the present invention when the first fixture base is omitted;

[0074] Figure 5 It is the first three-dimensional structure diagram of the first fruit shell clamping component of the present invention;

[0075] Figure 6 It is the second three-dimensional structure diagram of the first fruit shell clamping component of the present invention;

[0076] Figure 7 It is the third three-dimensional structure diagram of the first fruit shell clamping component of the present invention;

[0077] Figure 8 It is the first three-dimensional structure diagram of the saw blade cutting mechanism of the present invention;

[0078] Figure 9It is the second three-dimensional structure diagram of the saw blade cutting mechanism of the present invention;

[0079] Figure 10 It is the first three-dimensional structure diagram of the saw blade cutting mechanism of the present invention when the protective shell and the second fixture seat are omitted;

[0080] Figure 11 It is the second three-dimensional structure diagram of the saw blade cutting mechanism of the present invention when the protective shell and the second fixture seat are omitted;

[0081] Figure 12 It is the first three-dimensional structure diagram of the pressing mechanism of the present invention;

[0082] Figure 13 It is the second three-dimensional structure diagram of the pressing mechanism of the present invention;

[0083] Figure 14 It is the third three-dimensional structure diagram of the pressing mechanism of the present invention;

[0084] Figure 15 It is the structural schematic diagram of the second arc-shaped rib of the present invention;

[0085] Figure 16 It is a state diagram of the fresh macadamia nuts of the present invention after non-penetrating circumferential cutting by the saw blade cutting mechanism;

[0086] Figure 17 It is a state diagram of the fresh macadamia nuts of the present invention after pressing the saw blade to cut through the fruit shell by the pressing mechanism;

[0087] Figure 18 It is a morphological diagram of the finished macadamia nut-fruit mixed canned food of the present invention;

[0088] Figure 19 It is a state diagram of the fresh macadamia nuts of the present invention after non-penetrating circumferential cutting by the laser cutting mechanism;

[0089] Figure 20 It is a state diagram of the fresh macadamia nuts of the present invention after pressing the laser circumferential cutting to break the shell by the pressing mechanism.

[0090] The reference numerals in the accompanying drawings are: 10 - laser cutting mechanism, 100 - first cutting platform, 101 - first slide rail, 102 - first sliding frame, 103 - first adjusting screw hole, 104 - first adjusting bolt, 105 - second slide rail, 106 - second sliding frame, 107 - second adjusting screw hole, 108 - second adjusting bolt, 200 - laser cutter, 201 - laser cutting main body, 202 - laser head, 300 - first nut shell clamping mechanism, 301 - first fixture seat, 302 - first driving motor, 303 - first driving shaft, 304 - first threaded section, 305 - first nut shell clamping assembly, 3051 - first sliding block, 3052 - first slideway, 3053 - first threaded hole, 3054 - first connecting section, 3055 - first clamping block, 3056 - first rotating motor, 3057 - first recessed part, 3058 - first strip-shaped groove, 40 - saw blade cutting mechanism, 400 - second cutting platform, 401 - third slide rail, 402 - third sliding frame, 403 - third adjusting screw hole, 404 - third adjusting bolt, 405 - fourth slide rail, 406 - fourth sliding frame, 407 - fourth adjusting screw hole, 408 - fourth adjusting bolt, 409 - first connecting rod, 410 - tension spring, 411 - second connecting rod, 500 - saw blade cutter, 501 - support seat, 502 - mounting shaft, 503 - saw blade, 504 - cutting motor, 505 - protective housing, 506 - notch, 507 - fifth adjusting screw hole, 508 - fifth adjusting bolt, 600 - second nut shell clamping mechanism, 601 - second fixture seat, 602 - second driving motor, 603 - second driving shaft, 604 - second threaded section, 605 - second nut shell clamping assembly, 6051 - second sliding block, 6052 - second slideway, 6053 - second threaded hole, 6054 - second connecting section, 6055 - second clamping block, 6056 - second rotating motor, 6057 - second recessed part, 6058 - second strip-shaped groove, 70 - pressing mechanism, 700 - support frame, 701 - rotating shaft, 702 - eccentric wheel, 703 - pressure rod, 704 - pressure table, 705 - force receiving table, 706 - return spring, 707 - pressing handle, 708 - force receiving block, 709 - second arc-shaped recessed part, 710 - first arc-shaped recessed part, 711 - second arc-shaped convex rib, 712 - first arc-shaped convex rib. Detailed implementation manners

[0091] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it shall not be used as a basis for limiting the present invention.

[0092] A processing and preparation method for macadamia nut - fruit mixed cans includes the following steps.

[0093] (S01) Place fresh macadamia nuts on the cutting mechanism for non-penetrating circumferential cutting; the circumferential cutting in step (S01) is tool circumferential cutting or laser circumferential cutting; the circumferential cutting depth in step (S01) is 1 / 2 to 3 / 4 of the shell thickness;

[0094] (S02) Place the macadamia nuts after circumferential cutting in step (S01) in hot water for heating; the heat treatment time in step (S02) is 2 min to 15 min; the heat treatment temperature in step (S02) is 70 °C to 100 °C;

[0095] (S03) Rapidly cool the macadamia nuts after heating in step (S02); the cooling temperature in step (S03) is -30 °C to -10 °C;

[0096] (S04) Place the macadamia nuts after cooling in step (S03) on the pressing mechanism for pressing to open the shell and obtain the kernels;

[0097] (S05) Place the kernels in step (S04) in hot water, and heat and wash them after adding acid or enzyme respectively; the acid in step (S05) is a food-grade hydrochloric acid solution with a mass concentration of 0.1% to 3% or a citric acid solution with a mass concentration of 0.5% to 2%; the heat treatment temperature for adding acid in step (S05) is 60 °C to 95 °C; the heat treatment time for adding acid in step (S05) is 2 min to 10 min; the enzyme in step (S05) is amylase and protease; the addition amount of amylase is 0.05% to 0.2%; the treatment temperature after adding amylase is 30 °C to 70 °C; the treatment time after adding amylase is 2 min to 40 min; the addition amount of protease is 0.1% to 0.3%; the treatment temperature after adding protease is 30 °C to 60 °C; the treatment time after adding protease is 3 min to 60 min;

[0098] (S06) Take orange segments or yellow peaches and the kernels after washing in step (S05) and add them in layers in a canned container, then add sugar water or clear water and seal the lid; the addition amount of kernels in step (S06) accounts for 5% to 40% in the canned container;

[0099] (S07) Sterilize the canned cans in step (S06) to obtain the canned finished products; the sterilization in step (S07) is pasteurization or boiling water sterilization; the temperature of pasteurization is 60 °C to 95 °C; the time of pasteurization is 30 min to 60 min;

[0100] As Figure 16 shown is a state diagram after non-penetrating circumferential cutting of macadamia nuts using a saw blade cutting mechanism. The state after non-penetrating circumferential cutting of macadamia nuts using a laser cutting mechanism is as Figure 19 shown, and the cut grooves will look more regular; as Figure 17The figure shows a morphological diagram of the shell after pressing and circumferential cutting. The nut kernel in the figure has become two halves. The best shell-breaking morphology is as shown in Figure 20 the morphological diagram of the shell broken and the nut kernel intact as shown; as shown in Figure 18 the figure shows a morphological diagram of a canned finished product. In the figure, it is made of macadamia nut kernels broken into two halves. The best morphology should be made of intact macadamia nut kernels after practical shell-breaking.

[0101] The cutting mechanism is a laser cutting mechanism 10 or a saw blade cutting mechanism 40.

[0102] As shown in Figure 1 the laser cutting mechanism shown includes a first cutting platform 100 as shown in Figure 3 On the first cutting platform, a laser cutter 200 is adjusted and arranged. On the first cutting platform, a first nut shell clamping mechanism 300 is adjusted and arranged. The nut shell clamping part of the first nut shell clamping mechanism corresponds to the laser cutting part of the laser cutter. The laser cutter includes a laser cutting main body 201 as shown in Figure 2 The laser cutting main body is arranged to be adjusted up and down relative to the first cutting platform. On the laser cutting main body, a laser head 202 as shown in Figure 4 is arranged. The laser emission part of the laser head corresponds to the nut shell clamping part of the first nut shell clamping mechanism. A first slide rail 101 is arranged on the first cutting platform. A first sliding frame 102 is slidably adjusted on the first slide rail. The laser cutting main body is arranged on the first sliding frame. A first adjusting screw hole 103 is arranged on the first sliding frame. A first adjusting bolt 104 is threadedly connected in the first adjusting screw hole. The adjusting end of the first adjusting bolt corresponds to the first slide rail in terms of tightness. At least one second slide rail 105 is arranged on the first cutting platform. A second sliding frame 106 is slidably adjusted on the second slide rail. The first nut shell clamping mechanism is arranged on the second sliding frame. A second adjusting screw hole 107 is arranged on the second sliding frame. A second adjusting bolt 108 is threadedly connected in the second adjusting screw hole. The adjusting end of the second adjusting bolt corresponds to the second slide rail in terms of tightness.

[0103] The first nut shell clamping mechanism includes a first fixture seat 301 as shown in Figure 7 The first fixture seat is arranged on the second sliding frame. A first driving motor 302 as shown in Figure 5 is arranged on the first fixture seat. A first driving shaft 303 is arranged at the driving end of the first driving motor. A group of first thread segments 304 with opposite thread directions are arranged on the first driving shaft; A group of first nut shell clamping components 305 are adjusted and arranged on the first fixture seat. A group of first nut shell clamping components correspond to a group of first thread segments. The first nut shell clamping components are threadedly connected to the corresponding first thread segments. The laser emission part of the laser head corresponds to the nut shell clamping part of the first nut shell clamping components. The first nut shell clamping components include as shown in Figure 6The first sliding block 3051 shown, a first sliding track 3052 is provided on the first fixture seat, the first sliding block is slidably arranged on the first sliding track, a first threaded hole 3053 is provided on the first sliding block, and the first threaded hole is threadedly connected to the corresponding first threaded section; a first connecting section 3054 is provided on the first sliding block, a first clamping block 3055 is rotatably provided at one end of the first connecting section away from the first sliding block, at least one first connecting section is provided with a first rotating motor 3056, and the driving end of the first rotating motor is connected to the first clamping block; the laser head corresponds to the relative clamping position of the two first clamping blocks. A first recessed portion 3057 is provided on the first clamping block, and the recessed shape of the first recessed portion is adapted to the shape of the macadamia nut shell. A plurality of first strip-shaped grooves 3058 are provided at the first recessed portion.

[0104] As Figure 8 shown, the saw blade cutting mechanism includes as Figure 9 shown, a second cutting platform 400, a saw blade cutter 500 and a second nut shell clamping mechanism 600 are adjustably provided on the second cutting platform, the nut shell clamping position of the second nut shell clamping mechanism corresponds to the saw blade cutting position of the saw blade cutter, and the nut shell clamping position of the second nut shell clamping mechanism and the saw blade cutting position of the saw blade cutter are in a relatively close state. The saw blade cutter includes a support seat 501, the support seat is adjustably arranged relative to the second cutting platform, a mounting shaft 502 is rotatably provided on the support seat, and as Figure 10The saw blade 503 shown has its cutting part adjusted with respect to the fruit shell clamping part of the second fruit shell clamping mechanism, and the cutting part of the saw blade and the fruit shell clamping part of the second fruit shell clamping mechanism are in a relatively close state; a cutting motor 504 is provided on the support base, and the driving end of the cutting motor is connected to the end of the mounting shaft. A protective shell 505 is adjustably provided on the support base, the saw blade is rotatably arranged inside the protective shell, a notch 506 is provided on the protective shell, the saw blade is adjustably arranged in the notch, and the top of the protective shell can be detachably attached to the second fruit shell clamping mechanism. A fifth adjusting screw hole 507 is provided on the protective shell, a fifth adjusting bolt 508 is threadedly connected in the fifth adjusting screw hole, and the adjusting end of the fifth adjusting bolt corresponds to the support base in a tight or loose manner. A third slide rail 401 is provided on the second cutting platform, a third sliding frame 402 is slidably adjusted on the third slide rail, and the support base is arranged on the third sliding frame. A third adjusting screw hole 403 is provided on the third sliding frame, a third adjusting bolt 404 is threadedly connected in the third adjusting screw hole, and the adjusting end of the third adjusting bolt corresponds to the third slide rail in a tight or loose manner. At least one fourth slide rail 405 is provided on the second cutting platform, a fourth sliding frame 406 is slidably adjusted on the fourth slide rail, and the second fruit shell clamping mechanism is arranged on the fourth sliding frame. A fourth adjusting screw hole 407 is provided on the fourth sliding frame, a fourth adjusting bolt 408 is threadedly connected in the fourth adjusting screw hole, and the adjusting end of the fourth adjusting bolt corresponds to the fourth slide rail in a tight or loose manner. A first connecting rod 409 is provided on the fourth slide rail, a tension spring 410 is connected to the first connecting rod, a second connecting rod 411 is provided on the fourth sliding frame, and the end of the tension spring away from the first connecting rod is connected to the second connecting rod.

[0105] The second fruit shell clamping mechanism includes a second fixture base 601, the second fixture base is arranged on the fourth sliding frame, a second driving motor 602 is provided on the second fixture base, a second driving shaft 603 is provided at the driving end of the second driving motor, and a set of second driving shafts with opposite thread directions are provided on the second driving shaft such as Figure 11The second thread segment 604 shown; a set of second husk clamping components 605 are adjustably provided on the second fixture base. A set of second husk clamping components corresponds to a set of second thread segments. The second husk clamping components are threadedly connected to the corresponding second thread segments. The cutting position of the saw blade corresponds to the husk clamping position of the second husk clamping components. The second husk clamping components include second sliding blocks 6051. Second sliding channels 6052 are provided on the second fixture base. The second sliding blocks are slidably arranged on the second sliding channels. Second threaded holes 6053 are provided on the second sliding blocks. The second threaded holes are threadedly connected to the corresponding second thread segments; second connecting segments 6054 are provided on the second sliding blocks. Second clamping blocks 6055 are rotatably provided at one ends of the second connecting segments away from the second sliding blocks. At least one second connecting segment is provided with a second rotating motor 6056. The driving end of the second rotating motor is connected to the second clamping block; the cutting position of the saw blade corresponds to the relative clamping position of the two second clamping blocks. Second recessed portions 6057 are provided on the second clamping blocks. The recessed shapes of the second recessed portions are adapted to the shapes of macadamia nut husks. A plurality of second strip-shaped grooves 6058 are provided at the second recessed portions.

[0106] As Figure 12 shown, the pressing mechanism 70 includes a support frame 700. A rotating shaft 701 is rotatably provided at the upper part of the support frame. An eccentric wheel 702 as Figure 13 shown is provided on the rotating shaft. The rotating shaft is inserted at the eccentric surface of the eccentric wheel; a pressure rod 703 is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel. A pressure platform 704 is provided at the other end of the pressure rod away from the eccentric wheel; a stress platform 705 is provided at the lower part of the support frame. The stress platform corresponds to the pressure platform. The macadamia nut husk is located between the pressure platform and the stress platform; a return spring 706 as Figure 15 shown is sleeved on the pressure rod. One end of the return spring is connected to the support frame. The other end of the return spring is connected to the stress end of the pressure rod. A pressing handle 707 is provided on the rotating ring surface of the eccentric wheel. A stress block 708 is provided at one end of the pressure rod close to the eccentric wheel. The stress block is in contact with the outer ring surface of the eccentric wheel. One end of the return spring close to the eccentric wheel is connected to the stress block. A second arc-shaped recessed portion 709 is provided on the pressure platform. The shape of the second arc-shaped recessed portion is adapted to the shape of the macadamia nut husk; a first arc-shaped recessed portion 710 is provided on the stress platform. The first arc-shaped recessed portion corresponds to the second arc-shaped recessed portion. The shape of the first arc-shaped recessed portion is adapted to the shape of the macadamia nut husk. Second arc-shaped convex ribs 711 as Figure 14 shown are provided on the second arc-shaped recessed portion. The second arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk; first arc-shaped convex ribs 712 are provided on the first arc-shaped recessed portion. The first arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk.

[0107] Example 1: A method for processing and preparing macadamia nut - fruit mixed canned food, including the following steps,

[0108] (S01) Place fresh macadamia nuts on the cutting mechanism for non-penetrating circumferential cutting; the circumferential cutting in step (S01) is carried out by a tool; the circumferential cutting depth in step (S01) is 1 / 2 of the shell thickness;

[0109] (S02) Place the macadamia nuts after circumferential cutting in step (S01) in hot water for heating; the heat treatment time in step (S02) is 2 min; the heat treatment temperature in step (S02) is 100 °C;

[0110] (S03) Quickly cool the macadamia nuts heated in step (S02); the cooling temperature in step (S03) is -30 °C;

[0111] (S04) Place the macadamia nuts cooled in step (S03) on the pressing mechanism for pressing to open the shell and obtain the kernels;

[0112] (S05) Place the kernels in step (S04) in hot water, and heat and wash them after adding acid or enzyme respectively; the acid in step (S05) is a food-grade hydrochloric acid solution with a mass concentration of 0.1%; the heat treatment temperature for adding acid in step (S05) is 60 °C; the heat treatment time for adding acid in step (S05) is 10 min; the enzymes in step (S05) are amylase and protease; the addition amount of amylase is 0.05%; the treatment temperature after adding amylase is 30 °C; the treatment time after adding amylase is 40 min; the addition amount of protease is 0.1%; the treatment temperature after adding protease is 30 °C; the treatment time after adding protease is 60 min;

[0113] (S06) Take orange segments or yellow peaches and the kernels washed in step (S05) and add them in layers in a canned container, and then add sugar water and seal the lid; the addition amount of kernels in step (S06) accounts for 5% in the canned container;

[0114] (S07) Sterilize the canned cans in step (S06) to obtain the canned finished products; the sterilization in step (S07) is pasteurization; the pasteurization temperature is 60 °C; the pasteurization time is 60 min;

[0115] The cutting mechanism is a saw blade cutting mechanism 40.

[0116] The saw blade cutting mechanism includes a second cutting platform 400. A saw blade cutter 500 and a second fruit shell clamping mechanism 600 are adjustably arranged on the second cutting platform. The fruit shell clamping position of the second fruit shell clamping mechanism corresponds to the saw blade cutting position of the saw blade cutter, and the fruit shell clamping position of the second fruit shell clamping mechanism and the saw blade cutting position of the saw blade cutter are in a relatively close state. The saw blade cutter includes a support seat 501, and the support seat is adjustably arranged relative to the second cutting platform. A mounting shaft 502 is rotatably arranged on the support seat, and a saw blade 503 is arranged on the mounting shaft. The cutting position of the saw blade is adjustably arranged corresponding to the fruit shell clamping position of the second fruit shell clamping mechanism, and the cutting position of the saw blade and the fruit shell clamping position of the second fruit shell clamping mechanism are in a relatively close state; a cutting motor 504 is arranged on the support seat, and the driving end of the cutting motor is connected to the end of the mounting shaft. A protective shell 505 is adjustably arranged on the support seat, the saw blade is rotatably arranged in the protective shell, a notch 506 is arranged on the protective shell, the saw blade is adjustably arranged in the notch, and the top of the protective shell can be detachably attached to the second fruit shell clamping mechanism. A fifth adjusting screw hole 507 is arranged on the protective shell, a fifth adjusting bolt 508 is threadedly connected in the fifth adjusting screw hole, and the adjusting end of the fifth adjusting bolt corresponds to the support seat in a loose or tight manner. A third slide rail 401 is arranged on the second cutting platform, and a third sliding frame 402 is slidably adjusted on the third slide rail. The support seat is arranged on the third sliding frame. A third adjusting screw hole 403 is arranged on the third sliding frame, a third adjusting bolt 404 is threadedly connected in the third adjusting screw hole, and the adjusting end of the third adjusting bolt corresponds to the third slide rail in a loose or tight manner. At least one fourth slide rail 405 is arranged on the second cutting platform, a fourth sliding frame 406 is slidably adjusted on the fourth slide rail, and the second fruit shell clamping mechanism is arranged on the fourth sliding frame. A fourth adjusting screw hole 407 is arranged on the fourth sliding frame, a fourth adjusting bolt 408 is threadedly connected in the fourth adjusting screw hole, and the adjusting end of the fourth adjusting bolt corresponds to the fourth slide rail in a loose or tight manner. A first connecting rod 409 is arranged on the fourth slide rail, a tension spring 410 is connected to the first connecting rod, a second connecting rod 411 is arranged on the fourth sliding frame, and the end of the tension spring far from the first connecting rod is connected to the second connecting rod.

[0117] The second husk clamping mechanism includes a second fixture base 601 which is arranged on the fourth sliding frame. A second driving motor 602 is provided on the second fixture base. A second driving shaft 603 is provided at the driving end of the second driving motor. A set of second thread segments 604 with opposite thread directions are provided on the second driving shaft. A set of second husk clamping components 605 are adjustably provided on the second fixture base. The set of second husk clamping components correspond to the set of second thread segments, and the second husk clamping components are in threaded connection with the corresponding second thread segments. The cutting position of the saw blade corresponds to the husk clamping position of the second husk clamping components. The second husk clamping components include second sliding blocks 6051. Second sliding ways 6052 are provided on the second fixture base. The second sliding blocks are slidably arranged on the second sliding ways. Second threaded holes 6053 are provided on the second sliding blocks, and the second threaded holes are in threaded connection with the corresponding second thread segments. Second connecting segments 6054 are provided on the second sliding blocks. Second clamping blocks 6055 are rotatably provided at the ends of the second connecting segments far away from the second sliding blocks. Second rotating motors 6056 are provided on at least one of the second connecting segments, and the driving ends of the second rotating motors are connected to the second clamping blocks. The cutting position of the saw blade corresponds to the relative clamping position of the two second clamping blocks. Second concave portions 6057 are provided on the second clamping blocks. The concave shapes of the second concave portions are adapted to the shapes of macadamia nut husks. A number of second strip-shaped grooves 6058 are provided at the second concave portions.

[0118] The pressing mechanism 70 includes a support frame 700. A rotating shaft 701 is rotatably provided at the upper part of the support frame. An eccentric wheel 702 is provided on the rotating shaft, and the rotating shaft is inserted at the eccentric surface of the eccentric wheel. A pressure rod 703 is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel. A pressure platform 704 is provided at the end of the pressure rod far away from the eccentric wheel. A force-receiving platform 705 is provided at the lower part of the support frame. The force-receiving platform corresponds to the pressure platform, and the macadamia nut husk is located between the pressure platform and the force-receiving platform. A return spring 706 is sleeved on the pressure rod. One end of the return spring is connected to the support frame, and the other end of the return spring is connected to the force-receiving end of the pressure rod. A pressing handle 707 is provided on the rotating ring surface of the eccentric wheel. A force-receiving block 708 is provided at the end of the pressure rod close to the eccentric wheel. The force-receiving block is in contact with the outer ring surface of the eccentric wheel, and one end of the return spring close to the eccentric wheel is connected to the force-receiving block. A second arc-shaped concave portion 709 is provided on the pressure platform. The shape of the second arc-shaped concave portion is adapted to the shape of the macadamia nut husk. A first arc-shaped concave portion 710 is provided on the force-receiving platform. The first arc-shaped concave portion corresponds to the second arc-shaped concave portion, and the shape of the first arc-shaped concave portion is adapted to the shape of the macadamia nut husk. Second arc-shaped convex ribs 711 are provided on the second arc-shaped concave portion. The second arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk. First arc-shaped convex ribs 712 are provided on the first arc-shaped concave portion. The first arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk.

[0119] Example 2: Processing and preparation method of macadamia nut - fruit mixed canned food, including the following steps,

[0120] (S01) Place fresh macadamia nuts on a cutting mechanism for non - through circumferential cutting; the circumferential cutting in step (S01) is carried out by a tool; the circumferential cutting depth in step (S01) is 3 / 4 of the shell thickness;

[0121] (S02) Place the macadamia nuts after circumferential cutting in step (S01) in hot water for heating; the heat treatment time in step (S02) is 15 min; the heat treatment temperature in step (S02) is 70 °C;

[0122] (S03) Rapidly cool the macadamia nuts after heating in step (S02); the cooling temperature in step (S03) is - 10 °C;

[0123] (S04) Place the macadamia nuts after cooling in step (S03) on a pressing mechanism for pressing to open the shell and obtain kernels;

[0124] (S05) Place the kernels in step (S04) in hot water, add acid or enzyme and heat respectively, then wash; the acid in step (S05) is a food - grade hydrochloric acid solution with a mass concentration of 3%; the heat treatment temperature for adding acid in step (S05) is 95 °C; the heat treatment time for adding acid in step (S05) is 2 min; the enzymes in step (S05) are amylase and protease; the addition amount of amylase is 0.2%; the treatment temperature after adding amylase is 70 °C; the treatment time after adding amylase is 2 min; the addition amount of protease is 0.3%; the treatment temperature after adding protease is 60 °C; the treatment time after adding protease is 3 min;

[0125] (S06) Take orange segments or yellow peaches and the washed kernels in step (S05) and layer - add them in a canned container, then add clear water and seal the lid; the addition amount of kernels in step (S06) accounts for 40% in the canned container;

[0126] (S07) Sterilize the canned cans in step (S06) to obtain canned food products; the sterilization in step (S07) is pasteurization; the pasteurization temperature is 95 °C; the pasteurization time is 30 min;

[0127] The cutting mechanism is a saw - blade cutting mechanism 40.

[0128] The saw blade cutting mechanism includes a second cutting platform 400. A saw blade cutter 500 and a second fruit shell clamping mechanism 600 are adjustably arranged on the second cutting platform. The fruit shell clamping part of the second fruit shell clamping mechanism corresponds to the saw blade cutting part of the saw blade cutter, and the fruit shell clamping part of the second fruit shell clamping mechanism and the saw blade cutting part of the saw blade cutter are in a relatively close state. The saw blade cutter includes a support seat 501, which is adjustably arranged relative to the second cutting platform. A mounting shaft 502 is rotatably arranged on the support seat, and a saw blade 503 is arranged on the mounting shaft. The cutting part of the saw blade is adjustably arranged corresponding to the fruit shell clamping part of the second fruit shell clamping mechanism, and the cutting part of the saw blade and the fruit shell clamping part of the second fruit shell clamping mechanism are in a relatively close state; a cutting motor 504 is arranged on the support seat, and the driving end of the cutting motor is connected to the end of the mounting shaft. A protective shell 505 is adjustably arranged on the support seat, the saw blade is rotatably arranged in the protective shell, a notch 506 is arranged on the protective shell, the saw blade is adjustably arranged in the notch, and the top of the protective shell can be detachably attached to the second fruit shell clamping mechanism. A fifth adjusting screw hole 507 is arranged on the protective shell, a fifth adjusting bolt 508 is threadedly connected in the fifth adjusting screw hole, and the adjusting end of the fifth adjusting bolt corresponds to the support seat in a tight or loose manner. A third sliding rail 401 is arranged on the second cutting platform, and a third sliding frame 402 is slidably adjusted on the third sliding rail. The support seat is arranged on the third sliding frame. A third adjusting screw hole 403 is arranged on the third sliding frame, a third adjusting bolt 404 is threadedly connected in the third adjusting screw hole, and the adjusting end of the third adjusting bolt corresponds to the third sliding rail in a tight or loose manner. At least one fourth sliding rail 405 is arranged on the second cutting platform, and a fourth sliding frame 406 is slidably adjusted on the fourth sliding rail. The second fruit shell clamping mechanism is arranged on the fourth sliding frame. A fourth adjusting screw hole 407 is arranged on the fourth sliding frame, a fourth adjusting bolt 408 is threadedly connected in the fourth adjusting screw hole, and the adjusting end of the fourth adjusting bolt corresponds to the fourth sliding rail in a tight or loose manner. A first connecting rod 409 is arranged on the fourth sliding rail, a tension spring 410 is connected to the first connecting rod, a second connecting rod 411 is arranged on the fourth sliding frame, and the end of the tension spring away from the first connecting rod is connected to the second connecting rod.

[0129] The second husk clamping mechanism includes a second fixture base 601 which is arranged on the fourth sliding frame. A second driving motor 602 is provided on the second fixture base. A second driving shaft 603 is provided at the driving end of the second driving motor. A set of second thread segments 604 with opposite thread directions are provided on the second driving shaft. A set of second husk clamping components 605 are adjustably provided on the second fixture base. The set of second husk clamping components correspond to the set of second thread segments, and the second husk clamping components are threadedly connected to the corresponding second thread segments. The cutting position of the saw blade corresponds to the husk clamping position of the second husk clamping components. The second husk clamping components include second sliding blocks 6051. Second sliding channels 6052 are provided on the second fixture base. The second sliding blocks are slidably arranged on the second sliding channels. Second threaded holes 6053 are provided on the second sliding blocks, and the second threaded holes are threadedly connected to the corresponding second thread segments. Second connecting segments 6054 are provided on the second sliding blocks. Second clamping blocks 6055 are rotatably provided at the ends of the second connecting segments away from the second sliding blocks. Second rotating motors 6056 are provided on at least one of the second connecting segments, and the driving ends of the second rotating motors are connected to the second clamping blocks. The cutting position of the saw blade corresponds to the relative clamping position of the two second clamping blocks. Second recessed portions 6057 are provided on the second clamping blocks. The recessed shape of the second recessed portions is adapted to the shape of the macadamia nut husk. A number of second strip-shaped grooves 6058 are provided at the second recessed portions.

[0130] The pressing mechanism 70 includes a support frame 700. A rotating shaft 701 is rotatably provided at the upper part of the support frame. An eccentric wheel 702 is provided on the rotating shaft, and the rotating shaft is inserted at the eccentric surface of the eccentric wheel. A pressure rod 703 is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel. A pressure platform 704 is provided at the other end of the pressure rod away from the eccentric wheel. A force-receiving platform 705 is provided at the lower part of the support frame. The force-receiving platform corresponds to the pressure platform, and the macadamia nut husk is located between the pressure platform and the force-receiving platform. A return spring 706 is sleeved on the pressure rod. One end of the return spring is connected to the support frame, and the other end of the return spring is connected to the force-receiving end of the pressure rod. A pressing handle 707 is provided on the rotating ring surface of the eccentric wheel. A force-receiving block 708 is provided at one end of the pressure rod close to the eccentric wheel. The force-receiving block is in contact with the outer ring surface of the eccentric wheel, and one end of the return spring close to the eccentric wheel is connected to the force-receiving block. A second arc-shaped recessed portion 709 is provided on the pressure platform. The shape of the second arc-shaped recessed portion is adapted to the shape of the macadamia nut husk. A first arc-shaped recessed portion 710 is provided on the force-receiving platform. The first arc-shaped recessed portion corresponds to the second arc-shaped recessed portion, and the shape of the first arc-shaped recessed portion is adapted to the shape of the macadamia nut husk. Second arc-shaped convex ribs 711 are provided on the second arc-shaped recessed portion. The second arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk. First arc-shaped convex ribs 712 are provided on the first arc-shaped recessed portion. The first arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk.

[0131] Example 3: Processing and preparation method of macadamia nut - fruit mixed canned food, including the following steps,

[0132] (S01) Place fresh macadamia nuts on a cutting mechanism for non - penetrating circumcision; the circumcision in step (S01) is laser circumcision; the circumcision depth in step (S01) is 1 / 2 of the shell thickness;

[0133] (S02) Place the macadamia nuts circumcised in step (S01) in hot water for heating; the heat treatment time in step (S02) is 2 min; the heat treatment temperature in step (S02) is 90 °C;

[0134] (S03) Rapidly cool the macadamia nuts heated in step (S02); the cooling temperature in step (S03) is - 20 °C;

[0135] (S04) Place the macadamia nuts cooled in step (S03) on a pressing mechanism for pressing to open the shell and obtain kernels;

[0136] (S05) Place the kernels in step (S04) in hot water, and heat and wash them after adding acid or enzyme respectively; the acid in step (S05) is a citric acid solution with a mass concentration of 0.5%; the heat treatment temperature for adding acid in step (S05) is 70 °C; the heat treatment time for adding acid in step (S05) is 10 min; the enzymes in step (S05) are amylase and protease; the addition amount of amylase is 0.05%; the treatment temperature after adding amylase is 30 °C; the treatment time after adding amylase is 40 min; the addition amount of protease is 0.1%; the treatment temperature after adding protease is 30 °C; the treatment time after adding protease is 60 min;

[0137] (S06) Take orange segments or yellow peaches and the kernels washed in step (S05) and add them in layers in a canned container, and then add sugar water and seal the lid; the addition amount of kernels in step (S06) accounts for 15% in the canned container;

[0138] (S07) Sterilize the canned cans in step (S06) to obtain the finished canned food; the sterilization in step (S07) is boiling water boiling sterilization;

[0139] The cutting mechanism is the laser cutting mechanism 10.

[0140] The laser cutting mechanism includes a first cutting platform 100, on which a laser cutter 200 is adjustably provided. On the first cutting platform, a first nut shell clamping mechanism 300 is adjustably provided. The nut shell clamping position of the first nut shell clamping mechanism corresponds to the laser cutting position of the laser cutter. The laser cutter includes a laser cutting main body 201, which is adjustably arranged up and down relative to the first cutting platform. A laser head 202 is provided on the laser cutting main body. The laser emission position of the laser head corresponds to the nut shell clamping position of the first nut shell clamping mechanism. A first slide rail 101 is provided on the first cutting platform. A first sliding frame 102 is slidably adjusted on the first slide rail. The laser cutting main body is arranged on the first sliding frame. A first adjustment screw hole 103 is provided on the first sliding frame. A first adjustment bolt 104 is threadedly connected to the first adjustment screw hole. The adjustment end of the first adjustment bolt corresponds to the first slide rail in a tight or loose manner. At least one second slide rail 105 is provided on the first cutting platform. A second sliding frame 106 is slidably adjusted on the second slide rail. The first nut shell clamping mechanism is arranged on the second sliding frame. A second adjustment screw hole 107 is provided on the second sliding frame. A second adjustment bolt 108 is threadedly connected to the second adjustment screw hole. The adjustment end of the second adjustment bolt corresponds to the second slide rail in a tight or loose manner.

[0141] The first nut shell clamping mechanism includes a first fixture seat 301, which is arranged on the second sliding frame. A first driving motor 302 is provided on the first fixture seat. A first driving shaft 303 is provided at the driving end of the first driving motor. A set of first thread segments 304 with opposite thread directions are provided on the first driving shaft. A set of first nut shell clamping components 305 are adjustably provided on the first fixture seat. The set of first nut shell clamping components corresponds to the set of first thread segments. The first nut shell clamping component is threadedly connected to the corresponding first thread segment. The laser emission position of the laser head corresponds to the nut shell clamping position of the first nut shell clamping component. The first nut shell clamping component includes a first sliding block 3051. A first slideway 3052 is provided on the first fixture seat. The first sliding block is slidably arranged on the first slideway. A first thread hole 3053 is provided on the first sliding block, which is threadedly connected to the corresponding first thread segment. A first connecting section 3054 is provided on the first sliding block. A first clamping block 3055 is rotatably provided at the end of the first connecting section away from the first sliding block. At least one first connecting section is provided with a first rotating motor 3056. The driving end of the first rotating motor is connected to the first clamping block. The laser head corresponds to the relative clamping position of the two first clamping blocks. A first recessed part 3057 is provided on the first clamping block. The recessed shape of the first recessed part is adapted to the shape of the macadamia nut shell. A number of first strip-shaped grooves 3058 are provided at the first recessed part.

[0142] The pressing mechanism 70 includes a support frame 700. A rotating shaft 701 is rotatably provided at the upper part of the support frame. An eccentric wheel 702 is provided on the rotating shaft, and the rotating shaft is inserted at the eccentric surface of the eccentric wheel. A pressure rod 703 is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel, and a pressure platform 704 is provided at the other end of the pressure rod away from the eccentric wheel. A force-receiving platform 705 is provided at the lower part of the support frame. The force-receiving platform corresponds to the pressure platform, and the macadamia nut shell is located between the pressure platform and the force-receiving platform. A return spring 706 is sleeved on the pressure rod. One end of the return spring is connected to the support frame, and the other end of the return spring is connected to the force-receiving end of the pressure rod. A pressing handle 707 is provided on the rotating ring surface of the eccentric wheel. A force-receiving block 708 is provided at one end of the pressure rod close to the eccentric wheel. The force-receiving block is in contact with the outer ring surface of the eccentric wheel, and one end of the return spring close to the eccentric wheel is connected to the force-receiving block. A second arc-shaped recess 709 is provided on the pressure platform. The shape of the second arc-shaped recess is adapted to the shape of the macadamia nut shell. A first arc-shaped recess 710 is provided on the force-receiving platform. The first arc-shaped recess corresponds to the second arc-shaped recess, and the shape of the first arc-shaped recess is adapted to the shape of the macadamia nut shell. A second arc-shaped convex rib 711 is provided on the second arc-shaped recess. The second arc-shaped convex rib corresponds to the circumferential cutting groove on the macadamia nut shell. A first arc-shaped convex rib 712 is provided on the first arc-shaped recess. The first arc-shaped convex rib corresponds to the circumferential cutting groove on the macadamia nut shell.

[0143] Example 4: A processing and preparation method for macadamia nut-fruit mixed canned food, comprising the following steps,

[0144] (S01) Place fresh macadamia nuts on the cutting mechanism for non-penetrating circumferential cutting; the circumferential cutting in step (S01) is laser circumferential cutting; the circumferential cutting depth in step (S01) is 3 / 4 of the shell thickness;

[0145] (S02) Heat the macadamia nuts after circumferential cutting in step (S01) in hot water; the heat treatment time in step (S02) is 15 min; the heat treatment temperature in step (S02) is 90 °C;

[0146] (S03) Rapidly cool the macadamia nuts after heating in step (S02); the cooling temperature in step (S03) is -25 °C;

[0147] (S04) Place the macadamia nuts after cooling in step (S03) on the pressing mechanism for pressing to open the shell and obtain the kernels;

[0148] (S05) Place the nuts in step (S04) in hot water, heat them separately with acid or enzyme and then wash them; the acid in step (S05) is a citric acid solution with a mass concentration of 2%; the heat treatment temperature with acid in step (S05) is 80°C; the heat treatment time with acid in step (S05) is 2 min; the enzymes in step (S05) are amylase and protease; the addition amount of amylase is 0.2%; the treatment temperature after adding amylase is 70°C; the treatment time after adding amylase is 2 min; the addition amount of protease is 0.3%; the treatment temperature after adding protease is 60°C; the treatment time after adding protease is 3 min;

[0149] (S06) Take orange segments or yellow peaches and the washed nuts in step (S05), add them in layers in a canned container, and then add water and seal the lid; the addition amount of nuts in step (S06) accounts for 25% in the canned container;

[0150] (S07) Sterilize the canned cans in step (S06) to obtain the canned finished products; the sterilization in step (S07) is pasteurization; the pasteurization temperature is 95°C; the pasteurization time is 30 min;

[0151] The cutting mechanism is a laser cutting mechanism 10.

[0152] The laser cutting mechanism includes a first cutting platform 100. A laser cutter 200 is adjustably provided on the first cutting platform. A first fruit shell clamping mechanism 300 is adjustably provided on the first cutting platform. The fruit shell clamping part of the first fruit shell clamping mechanism corresponds to the laser cutting part of the laser cutter. The laser cutter includes a laser cutting main body 201. The laser cutting main body is adjustably arranged up and down relative to the first cutting platform. A laser head 202 is provided on the laser cutting main body. The laser emission part of the laser head corresponds to the fruit shell clamping part of the first fruit shell clamping mechanism. A first slide rail 101 is provided on the first cutting platform. A first sliding frame 102 is slidably adjusted on the first slide rail. The laser cutting main body is arranged on the first sliding frame. A first adjustment screw hole 103 is provided on the first sliding frame. A first adjustment bolt 104 is threadedly connected in the first adjustment screw hole. The adjustment end of the first adjustment bolt corresponds to the first slide rail in a tight or loose manner. At least one second slide rail 105 is provided on the first cutting platform. A second sliding frame 106 is slidably adjusted on the second slide rail. The first fruit shell clamping mechanism is arranged on the second sliding frame. A second adjustment screw hole 107 is provided on the second sliding frame. A second adjustment bolt 108 is threadedly connected in the second adjustment screw hole. The adjustment end of the second adjustment bolt corresponds to the second slide rail in a tight or loose manner.

[0153] The first husk clamping mechanism includes a first fixture base 301 which is arranged on the second sliding frame. A first driving motor 302 is provided on the first fixture base. A first driving shaft 303 is provided at the driving end of the first driving motor. A set of first thread segments 304 with opposite thread directions are provided on the first driving shaft. A set of first husk clamping components 305 are adjustably arranged on the first fixture base. The set of first husk clamping components correspond to the set of first thread segments. The first husk clamping components are in threaded connection with the corresponding first thread segments. The laser emission position of the laser head corresponds to the husk clamping position of the first husk clamping components. The first husk clamping components include first sliding blocks 3051. First sliding channels 3052 are provided on the first fixture base. The first sliding blocks are slidably arranged on the first sliding channels. First threaded holes 3053 are provided on the first sliding blocks. The first threaded holes are in threaded connection with the corresponding first thread segments. First connecting segments 3054 are provided on the first sliding blocks. A first clamping block 3055 is rotatably provided at the end of the first connecting segment away from the first sliding block. At least one first connecting segment is provided with a first rotating motor 3056. The driving end of the first rotating motor is connected to the first clamping block. The laser head corresponds to the relative clamping position of the two first clamping blocks. First recessed portions 3057 are provided on the first clamping blocks. The recessed shape of the first recessed portions is adapted to the shape of the macadamia nut husk. A number of first strip-shaped grooves 3058 are provided at the first recessed portions.

[0154] The pressing mechanism 70 includes a support frame 700. A rotating shaft 701 is rotatably provided at the upper part of the support frame. An eccentric wheel 702 is provided on the rotating shaft. The rotating shaft is inserted at the eccentric surface of the eccentric wheel. A pressure rod 703 is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel. A pressure platform 704 is provided at the end of the pressure rod away from the eccentric wheel. A stress platform 705 is provided at the lower part of the support frame. The stress platform corresponds to the pressure platform. The macadamia nut husk is located between the pressure platform and the stress platform. A return spring 706 is sleeved on the pressure rod. One end of the return spring is connected to the support frame. The other end of the return spring is connected to the stress end of the pressure rod. A pressing handle 707 is provided on the rotating ring surface of the eccentric wheel. A stress block 708 is provided at the end of the pressure rod close to the eccentric wheel. The stress block is in contact with the outer ring surface of the eccentric wheel. One end of the return spring close to the eccentric wheel is connected to the stress block. A second arc-shaped recessed portion 709 is provided on the pressure platform. The shape of the second arc-shaped recessed portion is adapted to the shape of the macadamia nut husk. A first arc-shaped recessed portion 710 is provided on the stress platform. The first arc-shaped recessed portion corresponds to the second arc-shaped recessed portion. The shape of the first arc-shaped recessed portion is adapted to the shape of the macadamia nut husk. Second arc-shaped convex ribs 711 are provided on the second arc-shaped recessed portion. The second arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk. First arc-shaped convex ribs 712 are provided on the first arc-shaped recessed portion. The first arc-shaped convex ribs correspond to the circumferential cutting grooves on the macadamia nut husk.

[0155] Example 5: Processing and preparation method of macadamia nut - fruit mixed canned food, including the following steps,

[0156] (S01) Place fresh macadamia nuts on a cutting mechanism for non - penetrating circumferential cutting; the circumferential cutting in step (S01) is laser circumferential cutting; the circumferential cutting depth in step (S01) is 2.5 / 4 of the shell thickness;

[0157] (S02) Place the macadamia nuts after circumferential cutting in step (S01) in hot water for heating; the heat treatment time in step (S02) is 10 min; the heat treatment temperature in step (S02) is 85 °C;

[0158] (S03) Quickly cool the macadamia nuts heated in step (S02); the cooling temperature in step (S03) is - 20 °C;

[0159] (S04) Place the macadamia nuts cooled in step (S03) on a pressing mechanism for pressing to open the shell and obtain kernels;

[0160] (S05) Place the kernels in step (S04) in hot water, and heat and wash them after adding acid or enzyme respectively; the acid in step (S05) is a food - grade hydrochloric acid solution with a mass concentration of 2%; the heat treatment temperature for adding acid in step (S05) is 75 °C; the heat treatment time for adding acid in step (S05) is 6 min; the enzymes in step (S05) are amylase and protease; the addition amount of amylase is 0.1%; the treatment temperature after adding amylase is 50 °C; the treatment time after adding amylase is 21 min; the addition amount of protease is 0.2%; the treatment temperature after adding protease is 45 °C; the treatment time after adding protease is 30 min;

[0161] (S06) Take orange segments or yellow peaches and the kernels washed in step (S05) and add them in layers in a canned container, and then add sugar water and seal the lid; the addition amount of kernels in step (S06) accounts for 20% in the canned container;

[0162] (S07) Sterilize the canned cans in step (S06) to obtain canned food products; the sterilization in step (S07) is pasteurization; the pasteurization temperature is 75 °C; the pasteurization time is 45 min;

[0163] The cutting mechanism is the laser cutting mechanism 10.

[0164] The laser cutting mechanism includes a first cutting platform 100, on which a laser cutter 200 is adjustably provided, and a first nut shell clamping mechanism 300 is adjustably provided. The nut shell clamping position of the first nut shell clamping mechanism corresponds to the laser cutting position of the laser cutter. The laser cutter includes a laser cutting main body 201, which is adjustably arranged up and down relative to the first cutting platform. A laser head 202 is provided on the laser cutting main body, and the laser emission position of the laser head corresponds to the nut shell clamping position of the first nut shell clamping mechanism. A first slide rail 101 is provided on the first cutting platform, and a first sliding frame 102 is slidably adjusted on the first slide rail. The laser cutting main body is arranged on the first sliding frame. A first adjusting screw hole 103 is provided on the first sliding frame, and a first adjusting bolt 104 is threadedly connected in the first adjusting screw hole. The adjusting end of the first adjusting bolt corresponds to the first slide rail in a tightness manner. At least one second slide rail 105 is provided on the first cutting platform, and a second sliding frame 106 is slidably adjusted on the second slide rail. The first nut shell clamping mechanism is arranged on the second sliding frame. A second adjusting screw hole 107 is provided on the second sliding frame, and a second adjusting bolt 108 is threadedly connected in the second adjusting screw hole. The adjusting end of the second adjusting bolt corresponds to the second slide rail in a tightness manner.

[0165] The first nut shell clamping mechanism includes a first fixture seat 301, which is arranged on the second sliding frame. A first driving motor 302 is provided on the first fixture seat. A first driving shaft 303 is provided at the driving end of the first driving motor. A set of first thread segments 304 with opposite thread directions are provided on the first driving shaft; A set of first nut shell clamping components 305 are adjustably provided on the first fixture seat. The set of first nut shell clamping components corresponds to the set of first thread segments. The first nut shell clamping component is threadedly connected to the corresponding first thread segment. The laser emission position of the laser head corresponds to the nut shell clamping position of the first nut shell clamping component. The first nut shell clamping component includes a first sliding block 3051. A first slideway 3052 is provided on the first fixture seat. The first sliding block is slidably arranged on the first slideway. A first threaded hole 3053 is provided on the first sliding block, and the first threaded hole is threadedly connected to the corresponding first thread segment; A first connecting section 3054 is provided on the first sliding block. A first clamping block 3055 is rotatably provided at the end of the first connecting section away from the first sliding block. A first rotating motor 3056 is provided on at least one first connecting section. The driving end of the first rotating motor is connected to the first clamping block; The laser head corresponds to the relative clamping position of the two first clamping blocks. A first recess 3057 is provided on the first clamping block. The recess shape of the first recess is adapted to the shape of the macadamia nut shell. A number of first strip-shaped grooves 3058 are provided at the first recess.

[0166] The pressing mechanism 70 includes a support frame 700. A rotating shaft 701 is rotatably provided at the upper part of the support frame. An eccentric wheel 702 is provided on the rotating shaft, and the rotating shaft is inserted at the eccentric surface of the eccentric wheel. A pressure rod 703 is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel. A pressure platform 704 is provided at the other end of the pressure rod away from the eccentric wheel. A force-receiving platform 705 is provided at the lower part of the support frame. The force-receiving platform corresponds to the pressure platform, and the macadamia nut shell is located between the pressure platform and the force-receiving platform. A return spring 706 is sleeved on the pressure rod. One end of the return spring is connected to the support frame, and the other end of the return spring is connected to the force-receiving end of the pressure rod. A pressing handle 707 is provided on the rotating ring surface of the eccentric wheel. A force-receiving block 708 is provided at one end of the pressure rod close to the eccentric wheel. The force-receiving block is in contact with the outer ring surface of the eccentric wheel, and one end of the return spring close to the eccentric wheel is connected to the force-receiving block. A second arc-shaped recess 709 is provided on the pressure platform. The shape of the second arc-shaped recess is adapted to the shape of the macadamia nut shell. A first arc-shaped recess 710 is provided on the force-receiving platform. The first arc-shaped recess corresponds to the second arc-shaped recess, and the shape of the first arc-shaped recess is adapted to the shape of the macadamia nut shell. A second arc-shaped rib 711 is provided on the second arc-shaped recess. The second arc-shaped rib corresponds to the circumferential cutting groove on the macadamia nut shell. A first arc-shaped rib 712 is provided on the first arc-shaped recess. The first arc-shaped rib corresponds to the circumferential cutting groove on the macadamia nut shell.

[0167] The working principle of the laser cutting mechanism 10 is as follows: The first cutting platform 100 provides overall support for the circumferential cutting process of the whole fresh macadamia nuts; the laser cutter 200 is adjusted and arranged on the first cutting platform. By adjusting the position of the laser cutter on the first cutting platform, the circumferential cutting points of the fresh macadamia nuts can be accurately controlled, ensuring the accuracy of circumferential cutting on the fresh macadamia nuts; the circumferential cutting of the fresh macadamia nuts by the laser cutter is a non-contact circumferential cutting with zero mechanical stress, which can well ensure that the kernel integrity rate > 99%, is precisely controllable, and the laser spot can be adjusted to 0.1 mm, suitable for macadamia nuts of different sizes; on the first cutting platform 100, a first husk clamping mechanism 300 is adjusted and arranged. The first husk clamping mechanism can stably clamp the fresh macadamia nuts and drive the fresh macadamia nuts to rotate at a constant speed during the specific process, cooperating with the cutting points of the laser cutter 200 to achieve efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nuts; by adjusting the position of the first husk clamping mechanism 300 on the first cutting platform, the accurate cooperation with the cutting points of the laser cutter can be flexibly achieved, realizing efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nuts; when the circumferential cutting is completed, adjust the first husk clamping mechanism to withdraw, remove the circumferentially cut fresh macadamia nuts, replace them with new fresh macadamia nuts, and repeat the movement and circumferential cutting process of the first husk clamping mechanism. The whole circumferential cutting has good stability; the laser cutting main body 201 controls the power and pulse frequency of the whole laser cutting process, is precisely controllable, and can well ensure that the kernel integrity rate > 99%; by adjusting the position of the laser cutting main body on the first cutting platform, the circumferential cutting points of the fresh macadamia nuts can be accurately controlled, ensuring the accuracy of circumferential cutting on the fresh macadamia nuts; the laser head 202 can accurately aim at the fresh macadamia nuts and precisely align the laser cutting points in the middle of the fresh macadamia nuts; by steplessly adjusting the position of the first sliding frame 102 on the first slide rail 101, the circumferential cutting points of the laser head 202 on the fresh macadamia nuts can be accurately controlled, ensuring the accuracy of circumferential cutting on the fresh macadamia nuts; by adjusting the rotation process of the first adjusting bolt 104 in the first adjusting screw hole 103, the locking and unlocking of the first sliding frame on the first slide rail can be achieved at any time, realizing the stepless adjustment of the position of the first sliding frame on the first slide rail; by steplessly adjusting the position of the second sliding frame 106 on the second slide rail 105, the stepless movement of the first husk clamping mechanism relative to the first cutting platform can be driven, flexibly achieving the accurate cooperation with the cutting points of the laser cutter, realizing efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nuts; by adjusting the rotation process of the second adjusting bolt 108 in the second adjusting screw hole 107, the locking and unlocking of the second sliding frame on the second slide rail can be achieved at any time, realizing the stepless adjustment of the position of the second sliding frame on the second slide rail; the first fixture seat 301 provides an installation position for the first husk clamping assembly 305 to realize the clamping process of the macadamia nuts; the first fixture seat moves with the second sliding frame 106, flexibly achieving the accurate cooperation with the cutting points of the laser cutter 200;The first driving motor 302 provides power for a set of first nut shell clamping components to move relatively closer to and away from each other on the first fixture base, so as to clamp and release the macadamia nuts; the first driving shaft 303 rotates forward and backward under the drive of the first driving motor, and a set of first thread segments 304 with opposite thread directions on the first driving shaft rotate forward and backward at the same time, accurately clamping and releasing the macadamia nuts; a set of first nut shell clamping components are correspondingly matched with a set of first thread segments. When the set of first thread segments rotate forward and backward, the threads drive the set of first nut shell clamping components to move closer to and away from each other, clamping and releasing the macadamia nuts; the process of clamping and releasing the macadamia nuts by thread adjustment has better accuracy and can better control the clamping force; two first sliding blocks 3051 slide relatively on the first slideway 3052, driving two first clamping blocks 3055 to move relatively closer to and away from each other, stably clamping and releasing the macadamia nuts; the first threaded holes 3053 on the first sliding blocks are threadedly connected to the corresponding first thread segments. By using the thread adjustment method, the process of clamping and releasing the macadamia nuts can be realized with good force control; the first connecting section 3054 provides an installation position for the first clamping block, guiding the first clamping block to the outside of the first fixture base, making it more convenient to adjust and correspond to the cutting point of the laser cutter; the two first clamping blocks can well realize the process of clamping and releasing the macadamia nuts; the first rotating motor 3056 drives the first clamping block to rotate stably, cooperating with the cutting point of the laser cutter, to realize efficient and accurate non-penetrating circumferential cutting of fresh macadamia nuts; the concave shape of the first concave part 3057 is adapted to the shape of the macadamia nut shell. After the two first concave parts are combined, they can stably clamp the macadamia nut shell and prevent it from rotating during circumferential cutting; a number of first strip-shaped grooves 3058 cooperate with the concave surface of the first concave part to realize more stable clamping of the macadamia nut shell and prevent it from rotating during circumferential cutting.;

[0168] The working principle of the saw blade cutting mechanism 40 is as follows: The second cutting platform 400 provides overall support for the saw blade circumferential cutting process of the whole fresh macadamia nut; the saw blade cutter 500 is adjusted and arranged on the second cutting platform. By adjusting the position of the saw blade cutter on the second cutting platform, the circumferential cutting position of the fresh macadamia nut can be accurately controlled to ensure the accuracy of circumferential cutting on the fresh macadamia nut; the saw blade cutter has a low cost and circularly cuts the macadamia nut shell with a high-speed rotating cemented carbide tool, with the rotation speed controlled at 2000 - 2500 rpm and the cutting depth of 1.2 - 1.5 mm (the shell thickness is about 1.8 mm); the second nut shell clamping mechanism 600 is adjusted and arranged on the second cutting platform. The second nut shell clamping mechanism can stably clamp the fresh macadamia nut and can drive the fresh macadamia nut to rotate uniformly during the specific process, cooperating with the cutting part of the saw blade cutter to achieve efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nut; by adjusting the position of the second nut shell clamping mechanism on the second cutting platform, the accurate cooperation with the cutting part of the saw blade cutter can be flexibly achieved to realize efficient and accurate non-penetrating circumferential cutting of the fresh macadamia nut; when the circumferential cutting is completed, adjust the second nut shell clamping mechanism to withdraw, remove the circumferentially cut fresh macadamia nut, replace it with a new fresh macadamia nut, and repeat the movement and circumferential cutting process of the second nut shell clamping mechanism. The whole circumferential cutting has good stability; during the whole circumferential cutting process, the nut shell clamping part of the second nut shell clamping mechanism is always elastically stressed with the saw blade cutting part of the saw blade cutter to ensure the overall non-penetrating circumferential cutting effect on the fresh macadamia nut; the support seat 501 provides an installation position for the cutting and adjustment movement process of the whole saw blade 503; by adjusting the position of the support seat on the second cutting platform, the circumferential cutting position of the fresh macadamia nut can be accurately controlled to ensure the accuracy of circumferential cutting on the fresh macadamia nut; the installation shaft 502 drives the saw blade to rotate to well achieve non-penetrating circumferential cutting of the fresh macadamia nut; the cutting part of the saw blade is elastically adjusted with the nut shell clamping part of the second nut shell clamping mechanism. On the one hand, it ensures the cutting force on the fresh macadamia nut and accurately controls the cutting depth, and tries to cut deeper on the premise of ensuring non-penetration of the nut shell. On the other hand, during circumferential cutting, it can stably enter under the relatively elastic fitting force to achieve stable circumferential cutting of the fresh macadamia nut; the cutting motor 504 provides power for the stable cutting process of the saw blade; the protective shell 505 can prevent external objects from reaching the saw blade to cause danger and provides protection for the stable cutting of the saw blade; the notch 506 on the protective shell can accurately control the cutting depth of the saw blade on the fresh macadamia nut, specifically by controlling how much the saw blade exceeds the notch; the top of the protective shell is elastically and separably fitted with the second nut shell clamping mechanism, and the second nut shell clamping mechanism always has an elastic acting force fitting the top of the protective shell. This elastic acting force can well achieve the stable entry of the saw blade into the nut shell during the cutting process to realize stable circumferential cutting of the fresh macadamia nut;By adjusting the rotation of the fifth adjusting bolt 508 in the fifth adjusting screw hole 507, the locking and unlocking of the protective shell on the support seat can be achieved at any time, realizing the stepless adjustment of the protective shell on the support seat, so as to accurately control the degree of the saw blade exceeding the notch and accurately control the non-penetrating circumferential cutting of fresh macadamia nuts; by adjusting the position of the third sliding frame 402 on the third slide rail 401 steplessly, the circumferential cutting position of the saw blade on the fresh macadamia nuts can be accurately controlled to ensure the accuracy of circumferential cutting on the fresh macadamia nuts; by adjusting the rotation of the third adjusting bolt 404 in the third adjusting screw hole 403, the locking and unlocking of the third sliding frame on the third slide rail can be achieved at any time, realizing the stepless adjustment of the position of the third sliding frame on the third slide rail; by adjusting the position of the fourth sliding frame 406 on the fourth slide rail 405 steplessly, the second fruit shell clamping mechanism can be driven to move steplessly relative to the second cutting platform, flexibly realizing the accurate cooperation with the cutting position of the saw blade cutter and achieving the efficient and accurate non-penetrating circumferential cutting of fresh macadamia nuts; by adjusting the rotation of the fourth adjusting bolt 408 in the fourth adjusting screw hole 407, the locking and unlocking of the fourth sliding frame on the fourth slide rail can be achieved at any time, realizing the stepless adjustment of the position of the fourth sliding frame on the fourth slide rail; the first connecting rod 409 is connected to one end of the tension spring 410, and the second connecting rod 411 is connected to the other end of the tension spring. Under the return force of the tension spring, the fourth sliding frame always has a relative sliding force on the fourth slide rail, and this force can well realize the stable depth of the fruit shell moving relative to the saw blade during the cutting process, realizing the stable non-penetrating elastic circumferential cutting of fresh macadamia nuts. The elastic circumferential cutting can avoid excessive cutting stress from cutting through the fruit shell and damaging the kernel; the second fixture seat 601 provides an installation position for the second fruit shell clamping component 605 during the clamping process of macadamia nuts; the second fixture seat moves with the fourth sliding frame, flexibly realizing the accurate elastic cooperation with the cutting position of the saw blade cutter; the second driving motor 602 provides power for a group of second fruit shell clamping components to move relatively closer to and farther away from each other on the second fixture seat, realizing the clamping and loosening of macadamia nuts; the second driving shaft 603 rotates forward and backward under the drive of the second driving motor, and a group of second thread segments 604 with opposite thread directions on the second driving shaft rotate forward and backward at the same time, accurately realizing the clamping and loosening of macadamia nuts; a group of second fruit shell clamping components are correspondingly matched with a group of second thread segments. When a group of second thread segments rotate forward and backward, the threads drive a group of second fruit shell clamping components to move closer to and farther away from each other, realizing the clamping and loosening of macadamia nuts; the process of clamping and loosening macadamia nuts by screw adjustment has better accuracy and can better control the clamping force; two second sliding blocks 6051 slide relatively on the second slideway 6052, driving two second clamping blocks 6055 to move relatively closer to and farther away from each other, stably realizing the clamping and loosening of macadamia nuts; the second thread holes 6053 on the second sliding blocks are threadedly connected to the corresponding second thread segments. By adopting the screw adjustment method, the force can be well controlled to realize the clamping and loosening process of macadamia nuts;The second connecting section 6054 provides an installation position for the second clamping block, guiding the second clamping block to the outside of the second fixture base, which is more convenient for adjusting and corresponding to the cutting position of the saw blade cutter; the two second clamping blocks can well realize the clamping and loosening processes of macadamia nuts; the second rotating motor 6056 drives the second clamping block to rotate stably, cooperating with the cutting position of the saw blade cutter, to achieve efficient, accurate and non-penetrating circumferential cutting of fresh macadamia nuts; the concave shape of the second concave portion 6057 is adapted to the shape of the macadamia nut shell, and the two second concave portions can cooperate to stably clamp the macadamia nut shell, preventing rotation during circumferential cutting; a plurality of second strip-shaped grooves 6058 cooperate with the concave surface of the second concave portion to realize more stable clamping of the macadamia nut shell, preventing rotation during circumferential cutting.;

[0169] The working principle of the pressing mechanism 70 is as follows: the support frame 700 provides stable support for the entire process of pressing and cracking the nut shell; the rotating shaft 701 enables the eccentric wheel 702 to rotate stably on the support frame; the eccentric rotation of the eccentric wheel provides appropriate pressing force for the process of pressing and cracking the nut shell; the relative movement of the pressure rod 703 on the support frame stably transmits the pressing force brought by the eccentric wheel to the nut shell; the pressure table 704 cooperates with the force-receiving table 705 to realize stable pressing and cracking of the nut shell after non-penetrating circumferential cutting; the return spring 706 always provides a return force for the pressure rod. When the eccentric wheel contacts the eccentric pressure, the return spring drives the pressure rod to return, separating the pressure table from the force-receiving table, removing the kernel after cracking, and placing a new nut shell to realize a new round of pressing and cracking process; the whole pressing process is simple and the pressing and cracking effect is good; the pressing handle 707 is used for the operator to apply a rotating force for the rotation of the eccentric wheel; the force-receiving block 708 cooperates with the outer ring surface of the eccentric wheel to stably receive the pressing force at the outer ring surface of the eccentric wheel; the shape of the second arc-shaped concave portion 709 is adapted to the shape of the macadamia nut shell, and the shape of the first arc-shaped concave portion 710 is adapted to the shape of the macadamia nut shell. When the macadamia nut shell after non-penetrating circumferential cutting is half-wrapped and pressed by the first arc-shaped concave portion and the second arc-shaped concave portion, it will not escape from the pressing position due to the pressing force, ensuring the stability of the whole pressing process; the second arc-shaped convex rib 711 corresponds to the circumferential cutting groove on the macadamia nut shell, and the first arc-shaped convex rib 712 corresponds to the circumferential cutting groove on the macadamia nut shell, so that the circumferential cutting groove is just stressed during pressing. When the second arc-shaped convex rib and the first arc-shaped convex rib approach each other, they act as a cutter, causing the nut shell to break into two halves from the circumferential cutting groove, realizing a labor-saving and fast nut shell cracking process.

Claims

1. Processing and preparation method of macadamia nut-fruit mixed canned food, characterized in that: including the following steps (S01) Place fresh macadamia nuts on a cutting mechanism for non-penetrating circumferential cutting; the cutting mechanism is a laser cutting mechanism (10) or a saw blade cutting mechanism (40); the circumferential cutting depth in step (S01) is 1 / 2 to 3 / 4 of the shell thickness; (S02) Place the macadamia nuts after circumferential cutting in step (S01) in hot water for heat treatment; (S03) Quickly cool the macadamia nuts after boiling in step (S02); (S04) Place the cooled macadamia nuts in step (S03) on a pressing mechanism for pressing to open the shell and obtain kernels; (S05) Place the kernels in step (S04) in hot water, and heat and wash them after adding acid or enzyme respectively; (S06) Take orange segments or yellow peaches and the washed kernels in step (S05) and add them in layers in a canned container, then add sugar water or clear water and seal the lid; (S07) Heat and sterilize the canned food in step (S06) to obtain the canned food finished product.

2. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 1, characterized in that: The heat treatment time in step (S02) is 2 min to 15 min; the heat treatment temperature in step (S02) is 70°C to 100°C; the cooling temperature in step (S03) is -30°C to -10°C; the kernel addition amount in step (S06) accounts for 5% to 40% in the canned container; the sterilization in step (S07) is pasteurization or boiling water sterilization.

3. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 1, characterized in that: The acid in step (S05) is a food-grade hydrochloric acid solution with a mass concentration of 0.1% to 3% or a citric acid solution with a mass concentration of 0.5% to 2%; the heat treatment temperature for adding acid in step (S05) is 60°C to 95°C; the heat treatment time for adding acid in step (S05) is 2 min to 10 min.

4. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 1, characterized in that: The enzyme in step (S05) is amylase and protease; the addition amount of amylase is 0.05% to 0.2%; the heat treatment temperature after adding amylase is 30°C to 70°C; the heat treatment time after adding amylase is 2 min to 40 min; the addition amount of protease is 0.1% to 0.3%; the heat treatment temperature after adding protease is 30°C to 60°C; the heat treatment time after adding protease is 3 min to 60 min.

5. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 1, characterized in that: The laser cutting mechanism includes a first cutting platform (100), on which a laser cutter (200) is adjustably provided, and a first fruit shell clamping mechanism (300) is adjustably provided. The fruit shell clamping position of the first fruit shell clamping mechanism corresponds to the laser cutting position of the laser cutter; the laser cutter includes a laser cutting main body (201), which is adjustably arranged up and down relative to the first cutting platform. A laser head (202) is provided on the laser cutting main body, and the laser emitting position of the laser head corresponds to the fruit shell clamping position of the first fruit shell clamping mechanism; the first fruit shell clamping mechanism includes a first fixture base (301), on which a first driving motor (302) is provided. The driving end of the first driving motor is provided with a first driving shaft (303), and a set of first thread segments (304) with opposite thread directions are provided on the first driving shaft; a set of first fruit shell clamping components (305) are adjustably provided on the first fixture base. The set of first fruit shell clamping components corresponds to the set of first thread segments, and the first fruit shell clamping component is threadedly connected to the corresponding first thread segment. The laser emitting position of the laser head corresponds to the fruit shell clamping position of the first fruit shell clamping component.

6. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 5, characterized in that: The first fruit shell clamping component includes a first sliding block (3051), a first sliding track (3052) is provided on the first fixture base, and the first sliding block is slidably arranged on the first sliding track. A first threaded hole (3053) is provided on the first sliding block, and the first threaded hole is threadedly connected to the corresponding first thread segment; a first connecting segment (3054) is provided on the first sliding block, and a first clamping block (3055) is rotatably provided at one end of the first connecting segment away from the first sliding block. A first rotating motor (3056) is provided on at least one first connecting segment, and the driving end of the first rotating motor is connected to the first clamping block; the laser head corresponds to the relative clamping position of the two first clamping blocks.

7. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 1, characterized in that: The saw blade cutting mechanism includes a second cutting platform (400). A saw blade cutter (500) and a second fruit shell clamping mechanism (600) are adjustably provided on the second cutting platform. The fruit shell clamping position of the second fruit shell clamping mechanism corresponds to the saw blade cutting position of the saw blade cutter, and the fruit shell clamping position of the second fruit shell clamping mechanism and the saw blade cutting position of the saw blade cutter are in a relatively close state. The saw blade cutter includes a support base (501), which is adjustably arranged relative to the second cutting platform. A mounting shaft (502) is rotatably provided on the support base, and a saw blade (503) is provided on the mounting shaft. The cutting position of the saw blade is adjustably arranged corresponding to the fruit shell clamping position of the second fruit shell clamping mechanism, and the cutting position of the saw blade and the fruit shell clamping position of the second fruit shell clamping mechanism are in a relatively close state. A cutting motor (504) is provided on the support base, and the driving end of the cutting motor is connected to the end of the mounting shaft. The second fruit shell clamping mechanism includes a second fixture base (601). A second driving motor (602) is provided on the second fixture base. A second driving shaft (603) is provided at the driving end of the second driving motor, and a set of second thread segments (604) with opposite thread directions are provided on the second driving shaft. A set of second fruit shell clamping components (605) are adjustably provided on the second fixture base. The set of second fruit shell clamping components correspond to the set of second thread segments, and the second fruit shell clamping components are threadedly connected to the corresponding second thread segments. The cutting position of the saw blade corresponds to the fruit shell clamping position of the second fruit shell clamping components.

8. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 7, characterized in that: A protective shell (505) is adjustably provided on the support base. The saw blade is rotatably arranged inside the protective shell. A notch (506) is provided on the protective shell, and the saw blade is adjustably arranged in the notch. The top of the protective shell can be detachably attached to the second fruit shell clamping mechanism. At least one fourth slide rail (405) is provided on the second cutting platform. A fourth sliding frame (406) is slidably adjusted on the fourth slide rail, and the second fruit shell clamping mechanism is arranged on the fourth sliding frame. A first connecting rod (409) is provided on the fourth slide rail, and a tension spring (410) is connected to the first connecting rod. A second connecting rod (411) is provided on the fourth sliding frame, and the end of the tension spring away from the first connecting rod is connected to the second connecting rod.

9. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 7, characterized in that: The second fruit shell clamping component includes a second sliding block (6051). A second slideway (6052) is provided on the second fixture base. The second sliding block is slidably arranged on the second slideway. A second threaded hole (6053) is provided on the second sliding block, and the second threaded hole is threadedly connected to the corresponding second thread segment. A second connecting section (6054) is provided on the second sliding block. A second clamping block (6055) is rotatably provided at the end of the second connecting section away from the second sliding block. A second rotating motor (6056) is provided on at least one second connecting section, and the driving end of the second rotating motor is connected to the second clamping block. The cutting position of the saw blade corresponds to the relative clamping position of the two second clamping blocks.

10. The processing and preparation method of macadamia nut-fruit mixed canned food according to claim 1, characterized in that: The pressing mechanism (70) includes a support frame (700). A rotating shaft (701) is rotatably provided at the upper part of the support frame. An eccentric wheel (702) is provided on the rotating shaft, and the rotating shaft is inserted at the eccentric surface of the eccentric wheel. A pressure rod (703) is movably provided on the support frame. One end of the pressure rod close to the eccentric wheel is in contact with the outer ring surface of the eccentric wheel, and a pressure platform (704) is provided at the other end of the pressure rod away from the eccentric wheel. A force-receiving platform (705) is provided at the lower part of the support frame. The force-receiving platform corresponds to the pressure platform, and the macadamia nut shell is located between the pressure platform and the force-receiving platform. A return spring (706) is sleeved on the pressure rod. One end of the return spring is connected to the support frame, and the other end of the return spring is connected to the force-receiving end of the pressure rod. A second arc-shaped recess (709) is provided on the pressure platform, and the shape of the second arc-shaped recess is adapted to the shape of the macadamia nut shell. A first arc-shaped recess (710) is provided on the force-receiving platform. The first arc-shaped recess corresponds to the second arc-shaped recess, and the shape of the first arc-shaped recess is adapted to the shape of the macadamia nut shell. A second arc-shaped rib (711) is provided on the second arc-shaped recess, and the second arc-shaped rib corresponds to the circumferential cutting groove on the macadamia nut shell. A first arc-shaped rib (712) is provided on the first arc-shaped recess, and the first arc-shaped rib corresponds to the circumferential cutting groove on the macadamia nut shell.

Images