A low-temperature pickling device and method for sweet orange yuzu jam processing

Abstract

The application discloses a low-temperature pickling equipment and method for sweet orange and grapefruit jam processing, and relates to the technical field of jam processing. The equipment comprises a pickling tank for processing sweet orange and grapefruit jam. The pickling tank comprises a temperature-raising tank and a temperature-lowering tank which are hingedly connected. Rotatable shafts one and two are arranged in the temperature-raising tank and the temperature-lowering tank respectively. Stirring shafts one and two are arranged on the rotatable shafts one and two respectively. Stirring frames are arranged on the stirring shafts one and two. The opposite ends of the rotatable shafts one and two are provided with butt joints. The butt joints are symmetrically arranged. The butt joints are annularly and equidistantly provided with support columns. Compared with the existing pickling equipment for sweet orange and grapefruit, the equipment can quickly switch among several temperature stages for low-temperature pickling of sweet orange and grapefruit without replacing the tank and opening the pickling tank, so that jam pollution is avoided, the jam processing efficiency is greatly improved, and the pickling tank does not need to be cooled.

Description

Technical Field

[0001] This invention relates to the field of jam processing technology, specifically to a low-temperature pickling equipment and method for processing sweet orange and grapefruit jam. Background Technology

[0002] Sweet tangerine pomelo, also known as mandarin pomelo, has an open tree shape and strong growth. The fruit is oblate, firm, with a slightly spherical stem end and a flat top. The peel is orange-yellow and not very smooth, making it slightly difficult to peel. Similar to the pomelo, it has an orange aroma. Each fruit weighs about 300 grams and has few seeds.

[0003] High-temperature cooking of jam can destroy its nutrients and taste. To preserve these qualities, sweet orange and grapefruit jam is often produced using a low-temperature curing process. During this process, high pressure is applied to break down the three-dimensional structure of the sweet orange and grapefruit, sterilizing and concentrating the jam. This process requires precise temperature control, maintaining the temperature at several stages, such as around 40 and 50 degrees Celsius. However, common curing tanks only have heating functions. To cool the jam, the tank must be replaced or the process must be allowed to cool down before proceeding to the next step. The tank replacement process is susceptible to bacterial contamination, and waiting for the jam to cool down significantly impacts production efficiency. Furthermore, common curing tanks are large, complex, and expensive, making them suitable for large food manufacturing companies but not for small food processing plants. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam, comprising:

[0005] A pickling tank for processing sweet orange and grapefruit jam includes a heating tank and a cooling tank hinged together. A rotating shaft 1 and a rotating shaft 2 are rotatably mounted inside the heating tank and cooling tank, respectively. A stirring shaft 1 and a stirring shaft 2 are respectively mounted on the rotating shaft 1 and the rotating shaft 2. A stirring rack is mounted on each of the stirring shaft 1 and the stirring shaft 2. A docking shaft is provided at opposite ends of the rotating shaft 1 and the two docking shafts are symmetrically arranged. At least one support column is distributed in a ring at equal intervals at one end of each docking shaft. A transmission groove is provided between two adjacent support columns.

[0006] The second rotating shaft has a sealed cavity and a control cavity connected to the sealed cavity. A connector is movably installed inside the sealed cavity. One end of the connector extends into the control cavity and is connected to a control rod via a bearing. A positioning block with one end extending into the second stirring shaft is movably installed on the inner wall of the control cavity. A drive ring is movably installed inside the control cavity and is movably fitted inside the end of the positioning block away from the second stirring shaft. The drive ring has protrusions on both sides of the positioning block. When a rotational force is applied to the drive ring, the drive ring drives the protrusions to abut against the positioning block, so that one end of the positioning block disengages from the second stirring shaft. The top of the second stirring shaft has a connecting groove that movably engages with the connector, so that the second stirring shaft can be rotated via the connector when the first stirring shaft rotates.

[0007] A base is provided to support the marinating jar. A motor is embedded inside the base. A transmission plate is provided on the output end of the motor, extending into the transmission groove at the bottom of the heating jar. Support plates are provided on the top of the base on both sides of the marinating jar. Connecting shafts are rotatably provided on the top of the support plates. The opposite ends of the two connecting shafts are fixedly connected to the two sides of the heating jar. Turntables and gears are provided on the opposite ends of the two connecting shafts. The turntables are used to manually rotate the marinating jar, and the gears are used to connect to the motor to automatically rotate the marinating jar.

[0008] As a preferred embodiment of the present invention, the heating tank is equipped with a heating element, the cooling tank is equipped with a cooling element, the support column is teardrop-shaped, the end of the connector away from the control cavity has at least one fan-shaped plate evenly distributed, the connecting groove has at least one fan-shaped groove evenly distributed, the fan-shaped surfaces of the fan-shaped plates and the fan-shaped edges of the fan-shaped grooves are all chamfered, and the top of the stirring shaft is chamfered.

[0009] As a preferred embodiment of the present invention, the interior of the stirring shaft 2 is provided with a positioning groove that can be inserted into the positioning block. The number of positioning grooves and positioning blocks is not less than one. One end of the positioning block is arc-shaped. A sealing gasket 1 is provided between the circumference of the positioning block and the interior of the rotating shaft 2. A sealing gasket 2 is provided between the circumference of the connector and the bottom opening of the sealing cavity. The exterior of both the rotating shaft 1 and the rotating shaft 2 is polygonal. The interior of the control cavity is waist-shaped. The end of the connector extending into the control cavity is waist-shaped, so that the connector and the rotating shaft 2 rotate synchronously.

[0010] As a preferred embodiment of the present invention, a stop bar is provided at the protruding end of the drive ring, a spring is provided inside the positioning block with one end abutting against the drive ring, a spring is sleeved on a section of the connector inside the sealed cavity, a slide plate is fixedly provided on the surface of the control rod, a slot for movably inserting into the slide plate is provided inside the drive ring, two return springs are symmetrically arranged above the drive ring inside the control cavity, the opposite ends of the two return springs abut against the sides of the slide plate respectively, and a handle is provided at the end of the control rod away from the control cavity to the outside of the docking shaft.

[0011] As a preferred embodiment of the present invention, a pressurized discharge port is provided on one side of the bottom of the heating tank and one side of the top of the cooling tank. The number of stirring frames is not less than one. The surface of the stirring shaft one is connected to scraper one, scraper two and scraper three through multiple stirring frames. The surface of the stirring shaft two is connected to scraper four, scraper five and scraper six through multiple stirring frames. The stirring frame includes a stirring rod and corrugated plates disposed on the stirring rod.

[0012] As a preferred embodiment of the present invention, a scraper is provided at the bottom end of the scraper four, and an arc-shaped rod with one end bent to the bottom of the scraper is provided at the bottom of one side of the scraper four. A collection groove is movably provided between the scraper and the arc-shaped rod. The collection groove is annular and a rubber ring that is tightly attached to the inner wall of the cooling tank is provided on the outer ring of the collection groove. The cross-section of the collection groove is L-shaped. The scraper is used to clean the inside of the collection groove. A pusher protrusion that protrudes from the collection groove is provided on the top of one side of the scraper.

[0013] As a preferred embodiment of the present invention, the inner wall of the cooling tank is provided with at least one limiting block in a ring, and the outer ring of the collecting groove is provided with at least one limiting groove that engages with the limiting block to restrict the rotation of the collecting groove. An internal rubber block is embedded on one side of the inner wall of the cooling tank, with one end extending into the receiving groove. The top of the rubber block is higher than the collecting groove and is provided with a boss structure with the same shape as the pusher boss.

[0014] As a preferred embodiment of the present invention, the top of the base is provided with a turnover groove, and two arc-shaped grooves are symmetrically opened on one side of the inner wall of the turnover groove. An insert plate is movably arranged inside the arc-shaped groove. One end of the insert plate extends into the interior of the base and is provided with a spring. The top of the insert plate is provided with a lever whose top end extends through to the top of the base.

[0015] As a preferred embodiment of the present invention, an electromagnetic sealing ring is provided between the heating tank and the cooling tank, an electromagnetic lock is installed on the surface of the heating tank and the cooling tank at the opposite position of the hinge, and a handle is provided on the electromagnetic lock, an induction plate is provided on the output end surface of the motor, a photoelectric switch matching the induction plate is fixedly provided inside the turnover groove, and at least one insertion hole is distributed in a ring inside the turntable, and a spring pin is movably provided inside one of the support plates, with one end extending into the inside of one of the insertion holes.

[0016] A method for pickling using a low-temperature pickling device for processing sweet citrus and grapefruit jam includes the following steps:

[0017] S1. Add raw materials. When adding materials, the cooling tank rotates and is offset from the heating tank. Pour the sweet orange and grapefruit pulp and jam additive into the heating tank to start marinating. When marinating the sweet orange and grapefruit jam at low temperature, the temperature is about 50 degrees. Activate the heating element inside the heating tank to heat the heating tank to about 50 degrees and maintain a constant temperature. After adding materials, rotate the cooling tank and the heating tank to close. Pressurize through the pressurized discharge port. When the fan-shaped blade touches the top of the stirring shaft one, the fan-shaped blade is pushed by the contact to cause the connector head to compress the spring and rise. When the connector head is opposite to the connecting groove, the connector head is pushed by the spring back and inserted into the connecting groove. Start the motor to drive the rotating shaft one and the stirring shaft one to rotate. The stirring shaft one drives the connector head to rotate through the connecting groove. The connector head drives the rotating shaft one and the stirring shaft two to rotate, realizing the linkage of the stirring shaft one and the stirring shaft two.

[0018] S2. Cooling and Marinating: After the first stage of marinating, the cooling tank is kept at around 40 degrees Celsius by cooling plates. The heating tank and cooling tank need to be reversed to release the spring pin from the connecting shaft. The operator rotates the marinating tank using a turntable, causing the connecting shaft at the bottom of the heating tank to disengage from the transmission plate. At the same time, the connecting shaft on the cooling tank rotates and enters the turnover groove, contacting the transmission plate and causing the transmission plate to insert into the transmission groove. The connecting shaft is then positioned by inserting the spring pin into the insertion hole. The motor can then be started to drive the stirring shaft to rotate. During the reversal process, the jam inside the heating tank directly enters the cooling tank for the next stage of marinating. After marinating, the jam is discharged through the pressurized discharge port.

[0019] As a preferred technical solution of the present invention

[0020] Compared with the prior art, the present invention provides a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam, which has the following beneficial effects:

[0021] 1. The low-temperature pickling equipment and method for processing sweet orange and grapefruit jam, compared with the existing pickling equipment for sweet orange and grapefruit on the market, can quickly switch between several temperature stages of low-temperature pickling of sweet orange and grapefruit by inverting the heating tank and cooling tank. The pickling tank does not need to be changed or opened during the process, which avoids jam contamination and greatly improves jam processing efficiency without waiting for the pickling tank to cool down.

[0022] 2. The low-temperature pickling equipment and method for processing sweet orange and grapefruit jam are equipped with stirring racks in both the heating and cooling tanks, and the two sets of stirring racks are linked, eliminating the need for an additional power source. At the same time, it does not affect the opening of the cooling tank, making it more energy-efficient. The pickling tank can be inverted manually or electrically, making it more suitable for small processing plants. The structure is simplified, the transmission efficiency between components is high, the use of a power source is reduced, and the equipment manufacturing cost is low.

[0023] 3. The low-temperature pickling equipment and pickling method for processing sweet orange and grapefruit jam uses a teardrop-shaped docking shaft that can automatically rotate and adjust its direction when it comes into contact with the transmission plate, so that the transmission groove and the transmission plate can be docked. The connector and the connecting groove make the docking process of rotating shaft one and rotating shaft two faster, without the need for manual operation, reducing pollution. Pulling the control lever can separate the linkage of rotating shaft one and rotating shaft two.

[0024] 4. The low-temperature pickling equipment and pickling method for processing sweet orange and grapefruit jam allows the first and second stirring shafts to work together and be removed from the heating and cooling tanks for cleaning, ensuring efficient cleaning of the pickling tanks and facilitating the pickling of different types of fruits. The arc-shaped groove facilitates the fixing of the cooling tank for inspection, assembly, and cleaning. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the low-temperature pickling equipment and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0026] Figure 2 This is a cross-sectional view of the structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0027] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of the structure at point B;

[0029] Figure 5 for Figure 2 Enlarged view of the structure at point C;

[0030] Figure 6 for Figure 2 Enlarged view of the structure at point D;

[0031] Figure 7 for Figure 2 Enlarged view of the structure at point E in the middle;

[0032] Figure 8 This is a cross-sectional view of the positioning block structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0033] Figure 9 This is a top sectional view of the drive ring structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0034] Figure 10 This is a schematic diagram of the docking shaft structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0035] Figure 11 This is a schematic diagram of the connector structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0036] Figure 12 This is a schematic diagram of the connecting groove structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0037] Figure 13 This is a schematic diagram of the scraper structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention;

[0038] Figure 14 This is a schematic diagram of the transmission plate structure of a low-temperature pickling device and pickling method for processing sweet orange and grapefruit jam proposed in this invention.

[0039] In the diagram: 1. Marinating tank; 11. Heating tank; 111. Heating element; 112. Discharge port; 12. Cooling tank; 121. Cooling element; 122. Limiting block; 123. Rubber stopper; 13. Rotating shaft one; 131. Stirring shaft one; 1311. Scraper one; 1312. Scraper two; 1313. Scraper three; 132. Connecting groove; 14. Rotating shaft two; 141. Stirring shaft two; 1411. Scraper four; 1412. Scraper five; 1413. Scraper six; 1414. Positioning groove; 142. Scraper; 1421. Pushing boss; 143. Arc rod; 144. Collection trough; 145. Limiting groove; 146. Sealing cavity; 147. Control cavity; 1471. Positioning block; 1472. Drive ring; 1473. Protrusion; 1474. Baffle strip; 1475, Slot; 1476, Reset Spring; 1477, Sealing Gasket 1; 148, Connector; 1481, Sealing Gasket 2; 149, Control Lever; 1491, Slide Plate; 1492, Handle; 15, Stirring Rack; 151, Stirring Rod; 152, Corrugated Sheet; 17, Connecting Shaft; 171, Support Column; 172, Transmission Groove; 18, Electromagnetic Sealing Ring; 19, Electromagnetic Lock; 191, Handle; 2, Base; 21, Motor; 211, Induction Sheet; 22, Transmission Plate; 23, Support Plate; 231, Connecting Shaft; 232, Spring Pin; 233, Pad; 24, Turntable; 241, Insertion Hole; 242, Crank Handle; 25, Gear; 26, Turning Groove; 261, Photoelectric Switch; 27, Arc Groove; 271, Insert Plate; 272, Lever. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-14 A low-temperature pickling device and method for processing sweet orange and grapefruit jam, comprising:

[0042] A pickling tank 1 is used to process sweet orange and grapefruit jam. The pickling tank 1 includes a heating tank 11 and a cooling tank 12 that are hinged to each other. The heating tank 11 and the cooling tank 12 are respectively rotatably equipped with a first rotating shaft 13 and a second rotating shaft 14. A first stirring shaft 131 and a second stirring shaft 141 are respectively sleeved on the first rotating shaft 13 and the second rotating shaft 14. A stirring rack 15 is provided on both the first stirring shaft 131 and the second stirring shaft 141. A docking shaft 17 is provided at opposite ends of the first rotating shaft 13 and the second rotating shaft 14. The two docking shafts 17 are symmetrically arranged. At least one support column 171 is distributed in a ring at equal intervals at one end of the docking shaft 17. A transmission groove 172 is provided between two adjacent support columns 171.

[0043] The rotating shaft 14 has a sealed cavity 146 and a control cavity 147 connected to the sealed cavity 146. A connector 148 is movably disposed inside the sealed cavity 146. One end of the connector 148 extends into the control cavity 147 and is connected to a control rod 149 via a bearing. A positioning block 1471 is movably disposed on the inner wall of the control cavity 147, with one end extending into the interior of the stirring shaft 141. A movably disposed part of the control cavity 147 is movably fitted inside the end of the positioning block 1471 away from the stirring shaft 141. The drive ring 1472 has protrusions 1473 on both sides of the positioning block 1471 inside. A rotational force is applied to the drive ring 1472, and the drive ring 1472 drives the protrusions 1473 to abut against the positioning block 1471, so that one end of the positioning block 1471 disengages from the interior of the stirring shaft 141. The top of the stirring shaft 141 has a connecting groove 132 that is movably inserted into the connector 148, so that the stirring shaft 141 can be driven to rotate through the connector 148 when the stirring shaft 131 rotates.

[0044] A base 2 supports the marinating jar 1. A motor 21 is embedded inside the base 2. A transmission plate 22, extending into the transmission groove 172 at the bottom of the heating tank 11, is mounted on the output end of the motor 21. Support plates 23 are located on both sides of the marinating jar 1 at the top of the base 2. Connecting shafts 231 are rotatably mounted on the top of the support plates 23. The opposite ends of the two connecting shafts 231 are fixedly connected to the sides of the heating tank 11. A turntable 24 and a gear 25 are respectively mounted on the opposite ends of the two connecting shafts 231. The turntable 24 is used to manually rotate the marinating tank 1, and the gear 25 is used to connect the electric motor to automatically rotate the marinating tank 1. The bottom of the turntable 24 is provided with a crank handle 242, which facilitates the manual rotation of the turntable 24 by the operator. The gear 25 and the electric motor can be driven by a chain. The electric motor can be installed between two arc-shaped grooves 27 without affecting the rotation of the cooling tank 12. With multiple drive methods, it is more suitable for some small processing plants. The structure is simple, the transmission efficiency between the components is high, the use of power sources is reduced, and the equipment manufacturing cost is low.

[0045] As a specific technical solution in this embodiment, the heating tank 11 is internally equipped with a heating element 111, the cooling tank 12 is internally equipped with a cooling element 121, the support column 171 is teardrop-shaped, the end of the connector 148 away from the control cavity 147 has at least one fan-shaped plate evenly distributed at intervals, the connecting groove 132 has at least one fan-shaped groove evenly distributed at intervals, the fan-shaped surfaces of the fan-shaped plates and the fan-shaped edges of the fan-shaped grooves are all chamfered, the top of the stirring shaft 131 is chamfered, and both the cooling tank 12 and the heating tank 11 are equipped with temperature sensors for temperature monitoring. (See reference...) Figure 2During the addition of ingredients, the cooling tank 12 rotates to offset the heating tank 11. Sweet orange and grapefruit pulp and the jam additive are poured into the heating tank 11 to begin marinating. During the low-temperature marinating of the sweet orange and grapefruit jam, the temperature is approximately 50 degrees Celsius. The heating element 111 inside the heating tank 11 is activated to heat the tank to approximately 50 degrees Celsius and maintain a constant temperature. After the addition is complete, the cooling tank 12 rotates to close the heating tank 11. When the fan-shaped blade contacts the top of the stirring shaft 131, the contact causes the connector 148 to compress the spring and rise. When the connector 148 aligns with the connecting groove 132, the spring-loaded connector 148 is pushed back and inserted into the connecting groove. Inside 132, if the fan-shaped blade and the fan-shaped groove are misaligned, when the motor 21 drives the stirring shaft 131 to rotate, the stirring shaft 131 drives the connecting groove 132 to rotate for angle adjustment. The chamfered design of the connector 148 and the connecting groove 132 allows the fan-shaped blade to be easily inserted into the interior of the connecting groove 132 when the connecting groove 132 rotates to face the fan-shaped blade, thus completing the connection between the stirring shaft 131 and the stirring shaft 141. By observing the lifting and lowering of the control rod 149 inside the docking shaft 17 at the top of the cooling tank 12, it is possible to intuitively determine whether the connector 148 has docked with the connecting groove 132.

[0046] As a specific technical solution of this embodiment, the interior of the stirring shaft 141 is provided with a positioning groove 1414 that inserts into the positioning block 1471. The number of positioning grooves 1414 and positioning blocks 1471 is not less than one. One end of the positioning block 1471 is arc-shaped. A sealing gasket 1477 is provided between the ring of the positioning block 1471 and the interior of the rotating shaft 14. A sealing gasket 1481 is provided between the ring of the connector 148 and the bottom opening of the sealing cavity 146. The exteriors of the rotating shaft 13 and the rotating shaft 14 are both polygonal. The interior of the control cavity 147 is waist-shaped. One end of the connector 148 extending into the control cavity 147 is also waist-shaped, so that the connector 148 and the rotating shaft 14 rotate synchronously. (See reference...) Figure 8The arc-shaped design of one end of the positioning block 1471 allows the stirring shaft 2 141 to be smoothly fitted with the rotating shaft 2 14 without the need to control the retraction of the positioning rod. When the arc-shaped part of the positioning block 1471 is contacted by the stirring shaft 2 141, its internal spring automatically compresses and retracts, allowing the stirring shaft 2 141 to smoothly fit with the rotating shaft 2 14. Because the rotating shaft 2 14 is polygonal, and the interior of the stirring shaft 2 141 is also polygonal with the number of positioning grooves 1414 matching the number of sides, even though there are only two positioning blocks 1471, the stirring shaft 2 141 and the rotating shaft 2 14 still fit together smoothly. The direction needs to be calibrated; simply insert it directly. The waist-shaped control cavity 147 restricts the rotation of the connecting shaft 231, allowing the connector 148 to rotate synchronously with the second rotating shaft 14 and the second stirring shaft 141. The first sealing gasket 1477 seals the connection between the positioning block 1471 and the second rotating shaft 14, preventing liquid from seeping into the control cavity 147. The second sealing gasket 1481 seals the sealing cavity 146, preventing liquid from entering the sealing cavity 146. The connector 148, the first stirring shaft 131, the second stirring shaft 141, and the stirring frame 15 are all made of food-grade metal.

[0047] As a specific technical solution of this embodiment, a stop bar 1474 is provided inside the drive ring 1472 at one end of the protrusion 1473. A spring with one end abutting against the drive ring 1472 is provided inside the positioning block 1471. A spring is sleeved on a section of the connector 148 inside the sealing cavity 146. A slide plate 1491 is fixedly provided on the surface of the control rod 149. A slot 1475 is provided inside the drive ring 1472 for movably engaging with the slide plate 1491. Two return springs 1476 are symmetrically arranged inside the control cavity 147, located above the drive ring 1472. The opposite ends of the two return springs 1476 are respectively connected to the slide plate 1472. The two sides of 91 abut against each other. The end of the control rod 149 away from the control cavity 147 extends to the outside of the docking shaft 17 and is provided with a handle 1492. When it is necessary to open the cooling tank 12, the control rod 149 is pulled vertically by the handle 1492. The control rod 149 drives the connector 148 to compress the spring and rise through the bearing, so that the connector 148 is disengaged from the connection groove 132. The cooling tank 12 can then be rotated by the handle 191. Since the positioning block 1471 is not driven by the control rod 149, when the cooling tank 12 rotates and is misaligned with the heating tank 11, the stirring shaft 141 inside the cooling tank 12 will not disengage from the rotating shaft 14, making it more stable to use. After the jam processing is completed, When cleaning the first stirring shaft 131 and the second stirring shaft 141, when the cooling tank 12 rotates and is misaligned with the heating tank 11, the second stirring shaft 141 can be directly lifted from the first stirring shaft 131. When disassembling the second stirring shaft 141, the operator needs to support the second stirring shaft 141 from the bottom beforehand. By rotating the control lever 149 through the handle 1492, the control lever 149 rotates by contacting the drive ring 1472 through the sliding plate 1491. The drive ring 1472 drives the protrusion 1473 to contact the positioning block 1471. The positioning block 1471 is compressed by the protrusion 1473 and retracts from the positioning groove 1414. The second stirring shaft 141 is released from the restriction and automatically descends under gravity, allowing the operator to remove the stirring shaft. Shaft 2 141, along with the stirring rack 15 on it, is removed. When the control lever 149 rotates, it causes the slide plate 1491 to abut against the reset spring 1476 on one side. The two reset springs 1476 are designed so that the control lever 149 can automatically reset after the operator releases it. To ensure the stability of the reset springs 1476, two arc rods inside the reset springs 1476 can be inserted into the slide rod on both sides later. This allows the reset springs 1476 to compress and rebound along the arc rod trajectory, ensuring the stability of the reset springs 1476. The stop bar 1474 is designed to abut against the positioning block 1471 to limit the rotation of the drive ring 1472 and prevent excessive rotation of the control lever 149.

[0048] As a specific technical solution of this embodiment, a pressurized discharge port 112 is provided on one side of the bottom of the heating tank 11 and one side of the top of the cooling tank 12. The number of stirring racks 15 is not less than one. The surface of the first stirring shaft 131 is connected to scraper rod 1311, scraper rod 2 1312, and scraper rod 3 1313 via multiple stirring racks 15. The surface of the second stirring shaft 141 is connected to scraper rod 4 1411, scraper rod 5 1412, and scraper rod 6 1413 via multiple stirring racks 15. Each stirring rack 15 includes a stirring rod 151 and corrugated sheets 152 disposed on the stirring rod 151. The first scraper rod 1311... Scraper 11 and scraper 4 1411 are used to clean the vertical surfaces on the inner walls of heating tank 11 and cooling tank 12. Scraper 2 1312 and scraper 5 1412 are used to clean the arc surfaces on the inner walls of heating tank 11 and cooling tank 12. Scraper 3 1313 and scraper 6 1413 are used to clean the bottom surface of the inner wall of heating tank 11 and the top surface of the inner wall of cooling tank 12. The corrugated sheet 152 can effectively stir the jam as stirring shaft 131 and stirring shaft 2 141 rotate, so that the pulp and jam additives are fully mixed and reacted. The pressurized discharge port 112 is located in two integrated structures and is used for pressurizing and discharging jam.

[0049] As a specific technical solution in this embodiment, a scraper 142 is provided at the bottom end of the scraper 1411, and an arc-shaped rod 143 with one end bent to the bottom of the scraper 142 is provided on one side of the bottom of the scraper 1411. A collection groove 144 is movably arranged between the scraper 142 and the arc-shaped rod 143. The collection groove 144 is annular, and a rubber ring that is tightly attached to the inner wall of the cooling tank 12 is provided on the outer ring of the collection groove 144. The cross-section of the collection groove 144 is L-shaped. The scraper 142 is used to clean the inside of the collection groove 144. A scraper 142 is provided on the top side of one side. There is a pusher boss 1421 that protrudes above the collection tank 144. The arc-shaped rod 143, together with the scraper 142, can fit over the collection tank 144. The processing method is simple. By slightly bending the arc-shaped rod 143, the collection tank 144 can be removed, which is conducive to later maintenance. When the scraper 1411 drives the scraper 142 to rotate, it also drives the arc-shaped rod 143 to rotate. The arc-shaped rod 143 cleans the outer ring of the collection tank 144, so that the jam attached to it is quickly scraped off into the interior of the heating tank 11. When the stirring shaft 141 is removed for cleaning, the collection tank 144 can also be removed together, further ensuring cleaning efficiency.

[0050] As a specific technical solution in this embodiment, the inner wall of the cooling tank 12 is provided with at least one limiting block 122 arranged in a ring. The outer ring of the collecting groove 144 is provided with at least one limiting groove 145 that engages with the limiting block 122 to restrict the rotation of the collecting groove 144. An internal rubber stop plate 123 extending into the receiving groove is embedded on one side of the inner wall of the cooling tank 12. The top of the rubber stop plate 123 is higher than the collecting groove 144 and is provided with a pusher boss 14. The 21 identical boss structures, when the stirring shaft 2 141 rotates, drive the scraper 4 1411 to rotate along the inner wall of the cooling tank 12 via the stirring frame 15. Because the limiting block 122 is stuck inside the limiting groove 145, the collecting tank 144 cannot rotate. The scraper 4 1411 drives the scraper 142 to scrape inside the collecting tank 144, causing the jam inside the collecting tank 144 to be scraped out. The rubber ring is set to ensure the fit between the collecting tank 144 and the inner wall of the cooling tank 12, so that the jam inside the collecting tank 144 is scraped out. After the jam is scraped out, a small amount of jam that slides down the inner wall of the cooling tank 12 can be collected inside the collection trough 144, preventing jam from dripping after the cooling tank 12 is opened and reducing cleaning difficulty. The rubber stopper 123 is designed to increase resistance to the jam inside the collection trough 144, preventing the jam inside the collection trough 144 from rotating as a whole when the scraper 142 scrapes it, and preventing it from being squeezed out by the scraper 142. The rubber stopper 123 works in conjunction with the scraper 142 to block the jam, making it... When the scraper 142 touches the jam, the jam overflows after touching the rubber stopper 123 and slides from the inner ring of the collection trough 144 into the interior of the heating tank 11. The boss on the top of the rubber stopper 123 cooperates with the pusher boss 1421, so that when the scraper 142 and the rubber stopper 123 touch the jam, they apply a force to the jam to move towards the inner ring of the collection trough 144, ensuring scraping efficiency. This allows the jam remaining on the inner wall of the cooling tank 12 to be quickly collected into the interior of the heating tank 11 when the jam moves from the cooling tank 12 into the interior of the heating tank 11.

[0051] As a specific technical solution in this embodiment, a turnover groove 26 is provided on the top of the base 2. Two arc-shaped grooves 27 are symmetrically opened on one side of the inner wall of the turnover groove 26. An insert plate 271 is movably arranged inside the arc-shaped groove 27. One end of the insert plate 271 extends into the base 2 and is provided with a spring. A lever 272 with its top end penetrating to the top of the base 2 is provided on the top of the insert plate 271. (See reference...) Figure 1The output end of the motor 21 extends into the interior of the turnover groove 26. The arc-shaped groove 27 allows for maintenance work to be carried out when the cooling tank 12 is rotated to the bottom. After the cooling tank 12 is rotated to the bottom, it is opened to allow the stirring shaft 131 inside the heating tank 11 to be removed. The docking shaft 17 on the cooling tank 12 slides into the interior of the arc-shaped groove 27. The operator pulls the insert plate 271 to compress the spring by using the lever 272. When the docking shaft 17 moves to the position of the insert plate 271, the lever 272 is released so that the insert plate 271 is inserted into the interior of the docking shaft 17. This completes the positioning of the cooling tank 12 after it is opened, which facilitates maintenance, assembly and cleaning work.

[0052] As a specific technical solution in this embodiment, an electromagnetic sealing ring 18 is provided between the heating tank 11 and the cooling tank 12. An electromagnetic lock 19 is installed on the surface of the heating tank 11 and the cooling tank 12 at the position opposite to the hinge, and a handle 191 is provided on the electromagnetic lock 19. A sensing plate 211 is provided on the output end surface of the motor 21. A photoelectric switch 261 matching the sensing plate 211 is fixedly installed inside the turnover groove 26. The turntable 24 has at least one insertion hole 241 arranged in a ring inside, one of which is the support plate. The internal movable part of the support plate 23 has a spring pin 232 extending into one of the insertion holes 241. A pad 233 is also provided inside the support plate 23 on one side of the spring pin 232. The spring pin 232 is L-shaped. When the restriction on the turntable 24 is released, the spring pin 232 is pulled out of the insertion hole 241, and then rotated to engage with the pad 233, freeing the operator's hands. Once the turntable 24 is adjusted to the correct position, the spring pin 232 can be rotated to disengage from the pad 233 and engage with the insertion hole 241. The electromagnetic sealing ring 18 is included in the heating tank 11. The annular electromagnet inside the cooling tank 12, the magnetic ring for the heating tank 11 or cooling tank 12, and the rubber gasket fitted around the annular electromagnet and magnetic ring, together with the magnetic ring attracted by the electromagnet, clamp the rubber gasket to achieve a seal. To ensure the docking efficiency between the docking shaft 17 and the transmission plate 22, the position of the transmission plate 22 is restricted. When the heating tank 11 and cooling tank 12 need to be reversed, the induction plate 211 rotates until the photoelectric switch 261 senses it, which stops the rotation of the motor 21. At this time, the transmission plate 22 is aligned with the direction of the turnover groove 26, and the spring pin 232 is released. With the restriction in place, the staff rotates the marinating tank 1 via the turntable 24, causing the docking shaft 17 at the bottom of the heating tank 11 to disengage from the transmission plate 22. At the same time, the docking shaft 17 on the cooling tank 12 rotates and enters the turnover groove 26, where it comes into contact with the transmission plate 22. The teardrop-shaped support column 171, in contact with the transmission plate 22, can drive the second rotating shaft 14 to rotate automatically and adjust its direction, so that the transmission groove 172 and the transmission plate 22 are perfectly engaged. By inserting the spring pin 232 into the insertion hole 241 to position the connecting shaft 231, the motor 21 can be started to drive the stirring shaft 141 to rotate.

[0053] A method for pickling using a low-temperature pickling device for processing sweet citrus and grapefruit jam includes the following steps:

[0054] S1. Adding raw materials: During addition, the cooling tank 12 rotates to offset the heating tank 11. Pour the sweet orange / grapefruit pulp and jam additive into the heating tank 11 to begin marinating. During low-temperature marinating of the sweet orange / grapefruit jam, the temperature is approximately 50 degrees Celsius. Activate the heating element 111 inside the heating tank 11 to heat the tank to approximately 50 degrees Celsius and maintain a constant temperature. After adding the raw materials, rotate the cooling tank 12 to close the heating tank 11. Pressurize through the pressurized discharge port 112. When the fan-shaped blades contact the top of the stirring shaft 131... When the fan-shaped blade is resisted, the connector 148 is compressed and rises. When the connector 148 is opposite to the connecting groove 132, the connector 148 is pushed into the interior of the connecting groove 132 by the spring. The motor 21 is started to drive the rotating shaft 13 and the stirring shaft 131 to rotate. The stirring shaft 131 drives the connector 148 to rotate through the connecting groove 132. The connector 148 drives the rotating shaft 13 and the stirring shaft 141 to rotate, realizing the linkage between the stirring shaft 131 and the stirring shaft 141.

[0055] S2. Cooling and Marinating: After the first stage of marinating, the cooling tank 12 is kept at approximately 40 degrees Celsius by the cooling plate 121. The heating tank 11 and the cooling tank 12 need to be reversed to release the spring pin 232 from the connecting shaft 231. The operator rotates the marinating tank 1 using the turntable 24, causing the docking shaft 17 at the bottom of the heating tank 11 to disengage from the transmission plate 22. Simultaneously, the docking shaft 17 on the cooling tank 12 rotates and enters the turnover groove 26, abutting against the transmission plate 22, causing the transmission plate 22 to insert into the transmission groove 172. The spring pin 232 is then inserted into the insertion hole 241. The internal connecting shaft 231 is positioned so that the motor 21 can be started to drive the stirring shaft 141 to rotate. During the inversion process, the jam inside the heating tank 11 directly enters the cooling tank 12 for the next stage of pickling. After pickling, the jam can be discharged through the pressurized discharge port 112. If pickling is required to continue, the temperature of the heating tank 11 and the cooling tank 12 is controlled by the heating element 111 and the cooling element 121. The heating tank 11 and the cooling tank 12 are inverted. The heating tank 11 and the cooling tank 12 are not turned on during the temperature switching process. The tanks are not changed during the process, which makes them less susceptible to bacterial contamination and makes the processing more hygienic.

[0056] In summary, the low-temperature pickling equipment and method for processing sweet orange and grapefruit jam, compared with existing sweet orange and grapefruit pickling equipment on the market, allows for rapid switching between several temperature stages during the low-temperature pickling of sweet orange and grapefruit by inverting the heating tank 11 and the cooling tank 12. This eliminates the need to change tanks and open the pickling tank 1 during the process, thus avoiding jam contamination and greatly improving jam processing efficiency, without having to wait for the pickling tank 1 to cool down.

[0057] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature pickling device for processing sweet orange and grapefruit jam, characterized in that, include: A pickling tank (1) is used to process sweet orange and grapefruit jam. The pickling tank (1) includes a heating tank (11) and a cooling tank (12) that are hinged to each other. The heating tank (11) and the cooling tank (12) are respectively rotatably equipped with a first rotating shaft (13) and a second rotating shaft (14). A first stirring shaft (131) and a second stirring shaft (141) are respectively sleeved on the first rotating shaft (13) and the second stirring shaft (141). A stirring rack (15) is provided on both the first stirring shaft (131) and the second stirring shaft (141). A docking shaft (17) is provided at the opposite ends of the first rotating shaft (13) and the second rotating shaft (14). The two docking shafts (17) are symmetrically arranged. At least one support column (171) is distributed in a ring at equal intervals at one end of the docking shaft (17). A transmission groove (172) is provided between two adjacent support columns (171). The rotating shaft 2 (14) has a sealed cavity (146) and a control cavity (147) connected to the sealed cavity (146). A connector (148) is movably disposed inside the sealed cavity (146). One end of the connector (148) extends into the control cavity (147) and is connected to a control rod (149) via a bearing. A positioning block (1471) is movably disposed on the inner wall of the control cavity (147), with one end extending into the interior of the stirring shaft 2 (141). A drive is movably disposed inside the control cavity (147) and is movably sleeved with the end of the positioning block (1471) away from the stirring shaft 2 (141). The driving ring (1472) has protrusions (1473) on both sides of the positioning block (1471) inside. A rotational force is applied to the driving ring (1472), and the driving ring (1472) drives the protrusions (1473) to abut against the positioning block (1471), so that one end of the positioning block (1471) is disengaged from the interior of the stirring shaft (141). The top of the stirring shaft (141) is provided with a connecting groove (132) that is movably inserted into the connector (148), so that the stirring shaft (141) can be driven to rotate through the connector (148) when the stirring shaft (131) rotates. A base (2) is used to support the pickling jar (1). A motor (21) is embedded inside the base (2). A transmission plate (22) is provided on the output end of the motor (21) and extends to the transmission groove (172) at the bottom of the heating tank (11). A support plate (23) is provided on the top of the base (2) on both sides of the pickling jar (1). A connecting shaft (231) is rotatably provided on the top of the support plate (23). The opposite ends of the two connecting shafts (231) are fixedly connected to the two sides of the heating tank (11). A turntable (24) and a gear (25) are provided on the opposite ends of the two connecting shafts (231). The turntable (24) is used to manually rotate the pickling jar (1), and the gear (25) is used to connect the motor to automatically rotate the pickling jar (1).

2. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 1, characterized in that: The heating tank (11) is equipped with a heating element (111), the cooling tank (12) is equipped with a cooling element (121), the support column (171) is raindrop shaped, the end of the connector (148) away from the control cavity (147) is evenly distributed with at least one fan-shaped piece, the connecting groove (132) is evenly distributed with at least one fan-shaped groove, the fan-shaped surface of the fan-shaped piece and the fan-shaped edge of the fan-shaped groove are all chamfered, and the top of the stirring shaft (131) is chamfered.

3. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 2, characterized in that: The stirring shaft 2 (141) has a positioning groove (1414) inside that is inserted into the positioning block (1471). There is at least one positioning groove (1414) and one positioning block (1471). One end of the positioning block (1471) is arc-shaped. A sealing gasket 1 (1477) is provided between the ring of the positioning block (1471) and the inside of the rotating shaft 2 (14). A sealing gasket 2 (1481) is provided between the ring of the connector (148) and the bottom opening of the sealing cavity (146). The outside of the rotating shaft 1 (13) and the rotating shaft 2 (14) are both polygonal. The inside of the control cavity (147) is waist-shaped. The end of the connector (148) extending into the control cavity (147) is waist-shaped, so that the connector (148) and the rotating shaft 2 (14) rotate synchronously.

4. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 3, characterized in that: The drive ring (1472) has a stop bar (1474) at one end of the protrusion (1473) inside. The positioning block (1471) has a spring at one end that abuts against the drive ring (1472) inside. The connector (148) has a spring sleeved on one end inside the sealing cavity (146). The control rod (149) has a slide plate (1491) fixedly installed on its surface. The drive ring (1472) has a slot (1475) that is movably inserted into the slide plate (1491) inside. The control cavity (147) has two symmetrically arranged reset springs (1476) above the drive ring (1472) inside. The opposite ends of the two reset springs (1476) abut against the sides of the slide plate (1491) respectively. The end of the control rod (149) away from the control cavity (147) extends to the outside of the docking shaft (17) and is provided with a handle (1492).

5. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 4, characterized in that: The heating tank (11) is provided with a pressurized discharge port (112) on one side of the bottom and the cooling tank (12) on one side of the top. The number of stirring racks (15) is not less than one. The surface of the stirring shaft (131) is connected to scraper one (1311), scraper two (1312) and scraper three (1313) through multiple stirring racks (15). The surface of the stirring shaft (141) is connected to scraper four (1411), scraper five (1412) and scraper six (1413) through multiple stirring racks (15). The stirring rack (15) includes a stirring rod (151) and a corrugated sheet (152) set on the stirring rod (151).

6. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 5, characterized in that: The scraper (142) is provided at the bottom end of the scraper (1411). An arc-shaped rod (143) with one end bent to the bottom of the scraper (142) is provided at the bottom of one side of the scraper (1411). A collection groove (144) is movably provided between the scraper (142) and the arc-shaped rod (143). The collection groove (144) is arranged in a ring and a rubber ring that is in close contact with the inner wall of the cooling tank (12) is provided on the outer ring of the collection groove (144). The cross-section of the collection groove (144) is L-shaped. The scraper (142) is used to clean the inside of the collection groove (144). A pusher boss (1421) that is higher than the collection groove (144) is provided on the top side of one side of the scraper (142).

7. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 6, characterized in that: The inner wall of the cooling tank (12) is provided with at least one limiting block (122) in a ring. The outer ring of the collection groove (144) is provided with at least one limiting groove (145) that engages with the limiting block (122) to restrict the rotation of the collection groove (144). One side of the inner wall of the cooling tank (12) is provided with an internal rubber block (123) that extends to the receiving groove. The top of the rubber block (123) is higher than the collection groove (144) and is provided with a boss structure with the same shape as the pusher boss (1421).

8. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 7, characterized in that: The top of the base (2) is provided with a turnover groove (26). Two arc-shaped grooves (27) are symmetrically opened on one side of the inner wall of the turnover groove (26). An insert plate (271) is movably arranged inside the arc-shaped groove (27). One end of the insert plate (271) extends into the base (2) and is provided with a spring. The top of the insert plate (271) is provided with a lever (272) whose top end extends through to the top of the base (2).

9. The low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 8, characterized in that: An electromagnetic sealing ring (18) is provided between the heating tank (11) and the cooling tank (12). An electromagnetic lock (19) is installed on the surface of the heating tank (11) and the cooling tank (12) at the position opposite to the hinge, and a handle (191) is provided on the electromagnetic lock (19). An induction plate (211) is provided on the output end surface of the motor (21). A photoelectric switch (261) matching the induction plate (211) is fixedly provided inside the turnover groove (26). The turntable (24) has at least one insertion hole (241) arranged in a ring inside. A spring pin (232) extending into one of the insertion holes (241) is movably provided inside the support plate (23).

10. A pickling method based on the low-temperature pickling equipment for processing sweet orange and grapefruit jam according to claim 9, characterized in that, Includes the following steps: S1. Adding raw materials: When adding materials, the cooling tank (12) is rotated to offset the heating tank (11). The sweet orange and grapefruit pulp and jam additive are poured into the heating tank (11) to start marinating. When marinating the sweet orange and grapefruit jam at low temperature, the temperature is about 50 degrees. The heating element (111) inside the heating tank (11) is activated to heat the heating tank (11) to about 50 degrees and maintain a constant temperature. After the materials are added, the cooling tank (12) is rotated to close the heating tank (11). Pressure is applied through the pressure discharge port (112). When the fan-shaped blade touches the top of the stirring shaft (131), the fan-shaped blade is subjected to The contact causes the connector (148) to compress the spring and rise. When the connector (148) is opposite to the connecting groove (132), the connector (148) is pushed into the interior of the connecting groove (132) by the spring. The motor (21) is started to drive the rotating shaft (13) and the stirring shaft (131) to rotate. The stirring shaft (131) drives the connector (148) to rotate through the connecting groove (132). The connector (148) drives the rotating shaft (13) and the stirring shaft (141) to rotate, thus realizing the linkage between the stirring shaft (131) and the stirring shaft (141). S2. Cooling and Marinating: After the first stage of marinating is completed, the cooling tank (12) is kept at about 40 degrees Celsius by the cooling plate (121). The heating tank (11) and the cooling tank (12) need to be reversed to release the spring pin (232) from the connecting shaft (231). The worker rotates the marinating tank (1) by the turntable (24) so ​​that the docking shaft (17) at the bottom of the heating tank (11) is disengaged from the transmission plate (22). At the same time, the docking shaft (17) on the cooling tank (12) enters the cooling tank as it rotates. The turnover trough (26) then contacts the transmission plate (22), causing the transmission plate (22) to insert into the transmission trough (172). The connecting shaft (231) is then positioned by inserting the spring pin (232) into the insertion hole (241). The motor (21) can then be started to drive the stirring shaft (141) to rotate. During the inversion process, the jam inside the heating tank (11) directly enters the cooling tank (12) for the next stage of pickling. After pickling, the jam is discharged through the pressurized discharge port (112).

Images