Test device and process for treating potatoes by utilizing X-ray radiation

Abstract

The invention discloses a test device and process for treating potatoes by using X-ray radiation. The device comprises a rack, wherein two X-shaped reinforcing frames are fixed on the rack; a potato bagging assembly; the potato loading assembly is used for bagging and packaging potatoes; a potato feeding assembly; the potato feeding assembly comprises a supporting plate fixed to the rack, and a discharging groove is formed in the supporting plate in a penetrating mode. The method comprises the following steps that S1, screened colored potatoes are placed in a feeding frame, through cooperation of a potato feeding assembly and a potato bagging assembly, the colored potatoes are subpackaged into plastic packaging bags, and the plastic packaging bags are prepared to be used for X-ray radiation treatment. According to the method, the content of reducing sugar, the content of cane sugar and accumulation of glucose in tubers can be remarkably inhibited, the low-temperature saccharification phenomenon of the colored potatoes is inhibited, and the effects of remarkably inhibiting low-temperature saccharification of the colored potatoes stored for a long time and prolonging the refreshing time of the colored potatoes can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of potato storage and fresh-keeping, and in particular to a test device and process for treating potatoes by utilizing X-ray radiation. Background Art

[0002] Although colored potatoes are rich in anthocyanins and other polyphenolic nutrients, colored potatoes mainly refer to potatoes with red or purple tubers. However, compared with ordinary potatoes, colored potatoes have poor storage resistance and are prone to low-temperature saccharification, germination, rot and deterioration when stored under low temperature conditions. Therefore, it is particularly important to invent a low-cost method to extend the shelf life of colored potatoes and inhibit the low-temperature saccharification phenomenon of colored potatoes during long-term storage.

[0003] Potato low-temperature storage usually refers to potatoes stored at a temperature of 4°C to 10°C. During long-term low-temperature storage, the sugar metabolism balance in the colored potato tubers is broken, which causes the starch in the tubers to gradually degrade and become reducing sugars such as glucose and fructose. This phenomenon is called low-temperature saccharification. Low-temperature storage methods can easily cause low-temperature saccharification of colored potato tubers, resulting in the deterioration of the processing quality of colored potatoes. During the processing, excessive Maillard reactions are likely to occur, excessive accumulation of carcinogens, poor commercial quality, and easy to rot. In addition, low-temperature storage of potatoes requires a special potato controlled atmosphere storage warehouse, which is expensive and has high operating costs, which is difficult for ordinary farmers to afford. Therefore, it is particularly important to invent a low-cost method to extend the storage period of colored potatoes and inhibit the occurrence of low-temperature saccharification during the storage of colored potatoes. Summary of the invention

[0004] The purpose of the present invention is to solve the above technical problems and to propose an experimental device and process for treating potatoes using X-ray radiation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An experimental device for treating potatoes using X-ray radiation comprises a frame on which two X-shaped reinforcement frames are fixed;

[0007] A potato bagging assembly; the potato bagging assembly is used to bag and pack potatoes;

[0008] A potato feeding assembly; the potato feeding assembly comprises a support plate fixed on a frame, a feeding chute is provided through the support plate, and the potato feeding assembly pushes the potatoes to the potato bagging assembly for bagging and packaging, and the potatoes fall into the feeding chute by gravity;

[0009] Heat-sealing and cutting component; the heat-sealing and cutting component heat-seals and cuts the potatoes that are packaged and fall into the chute;

[0010] X-ray radiation component; the packaged potatoes are transported to the X-ray radiation component through a conveying mechanism, and the potatoes are subjected to X-ray radiation treatment by the X-ray radiation component.

[0011] Preferably, the potato bagging assembly includes a first bracket fixed at the bottom of the frame, a first film roller is rotatably connected to the first bracket, a second bracket is fixedly connected to the support plate, a second film roller is rotatably connected to the support plate, a strip groove is penetrated by the support plate, and packaging film passing through the strip groove is wound around the first film roller and the second film roller.

[0012] Preferably, the potato feeding assembly includes a fixing frame fixed on a support plate, an electric push rod is installed on the fixing frame, an output end of the electric push rod is fixedly connected to a wedge plate, a limiting groove is provided on the wedge plate, a feeding frame is fixedly connected to the support plate, and a through groove is penetrated on the feeding frame and cooperated with the wedge plate.

[0013] Preferably, it includes a transmission mechanism capable of driving the first film roller and the second film roller to rotate, the transmission mechanism includes a first shaft rod coaxially fixedly connected to the second film roller, a one-way bearing is fixedly connected to the first shaft rod, the second bracket is rotatably connected to the second shaft rod, the second shaft rod and the one-way bearing are both equipped with synchronous wheels, the two synchronous wheels are connected by a synchronous belt, a gear is fixed on the second shaft rod, a rack plate is fixedly connected to the gear, and the rack plate is fixedly connected to the wedge plate via a connecting rod.

[0014] Preferably, a limiting pressure wheel is fixedly connected to the second bracket, and the limiting pressure wheel abuts against the upper end of the rack plate.

[0015] Preferably, the heat sealing cutting assembly includes a mounting plate and a baffle fixed to the bottom of the frame, the mounting plate fixedly connected to the first piston cylinder, the first movable piston slidably connected in the first piston cylinder, the first movable piston fixedly connected to a driving rod, the driving rod fixedly connected to a U-shaped plate, the U-shaped plate fixed with a U-shaped cutter and a U-shaped heat sealing strip, the U-shaped heat sealing strip is located inside the U-shaped cutter, the baffle is provided with a heat sealing strip opposite to the U-shaped heat sealing strip, the frame is fixed with a mounting block, the mounting block is fixedly connected to the second piston cylinder, the second movable piston is slidably connected in the second piston cylinder, the second movable piston is fixedly connected to a spring, the other end of the spring is fixedly connected to the second piston cylinder, the first piston cylinder and the second piston cylinder are connected by a delivery pipe and the medium delivered inside is hydraulic oil, an L-shaped driving rod is fixed on the rack plate, and the L-shaped driving rod is arranged opposite to the second movable piston.

[0016] Preferably, the conveying mechanism comprises two transmission rollers rotatably mounted on an X-shaped reinforcement frame, and the two transmission rollers are connected by a conveyor belt.

[0017] The present invention also discloses a process for treating potatoes using X-ray radiation, comprising the following steps:

[0018] S1, placing the screened colored potatoes in a loading frame, and packing the colored potatoes into plastic packaging bags with a length of 80 cm and a width of 45 cm through the cooperation of a potato loading assembly and a potato bagging assembly, wherein the height of the packaging bag after being filled with colored potatoes and laid flat is no higher than 20 cm, and the bags are ready for X-ray radiation treatment;

[0019] S2, placing the bagged colored potatoes flat on the conveyor belt, using a 5MeV high-frequency high-voltage electron accelerator for X-ray radiation of the colored potatoes, the equipment model is DD 5MeV-30mA / 1200, select the X-ray mode, and the X-ray radiation dose of the colored potato tubers must be strictly controlled between 100Gy and 200Gy;

[0020] S3: The colored potatoes irradiated with X-rays are stored in a warehouse.

[0021] Preferably, the relevant parameters in the X-ray mode are: electron beam energy 3 to 5 MeV, power 50 to 150 kW, beam current intensity 5 to 20 mA, scanning width 1200 mm, energy instability: ≤±2%, beam current instability: ≤±2%, scanning non-uniformity ≤±10%, and beam transmission speed 2 to 8 m / min.

[0022] Preferably, the storage conditions of the colored potatoes are: a temperature of 20° C.±3° C., storage in dark conditions, and a relative humidity of 40% to 70%.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The electric push rod can intermittently load the material and use the gravity of the potatoes to wrap the packaging film.

[0025] 2. The electric push rod cooperates with the first piston cylinder and the second piston cylinder to heat-seal and cut the packaging film wrapping the potatoes for subsequent irradiation treatment.

[0026] 3. The electric push rod works in conjunction with the gear rack plate to realize the rotation of the packaging film, rewind the packaging film, rewind the cut-out part on the second film roller and drive the first film roller to rotate, so that the new packaging film is in place to prepare for the next potato packaging.

[0027] 4. The method of the present invention can significantly inhibit starch degradation and tuber water loss in colored potato tubers during long-term storage, thereby promoting the preservation of colored potatoes.

[0028] 5. The method of the present invention can significantly inhibit the accumulation of reducing sugar content, sucrose content and glucose in tubers, and inhibit the occurrence of low-temperature saccharification of colored potatoes.

[0029] In summary, the present invention can significantly inhibit the accumulation of reducing sugar content, sucrose content and glucose in tubers, inhibit the occurrence of low-temperature saccharification of colored potatoes, and can achieve the effect of significantly inhibiting the occurrence of low-temperature saccharification of long-term stored colored potatoes and extending the shelf life of colored potatoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0031] Figure 2 A rear view of an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0032] Figure 3 This is a schematic structural diagram of a conveying mechanism in an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0033] Figure 4 This is a schematic structural diagram of an X-ray radiation component in an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0034] Figure 5 This is a schematic structural diagram of a heat-sealing and cutting assembly in an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0035] Figure 6 This is a disassembled diagram of a heat-sealing and cutting assembly in an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0036] Figure 7 This is a schematic structural diagram of a potato bagging component and a potato feeding component in an experimental device for treating potatoes by X-ray radiation proposed by the present invention;

[0037] Figure 8 This is a schematic structural diagram of a synchronous wheel in an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0038] Fig. 9 This is a schematic structural diagram of a potato bagging assembly in an experimental device for treating potatoes using X-ray radiation proposed by the present invention;

[0039] Fig.10This is a diagram showing that X-rays with a dose of 100Gy have a good inhibitory effect on the sprouting and rotting of colored potatoes;

[0040] Fig.11 This is a comparison picture of Red Rose No. 3 potato;

[0041] Fig.12 This is a comparison picture of Purple Rose No. 2 potato.

[0042] In the figure: 1 frame, 2 conveyor belt, 3X-type reinforcement frame, 4X-ray radiation component, 5 loading frame, 6 through slot, 7 first bracket, 8 one-way bearing, 9 second bracket, 10 support plate, 11 blanking trough, 12 fixed frame, 13 wedge plate, 14 limit slot, 15 electric push rod, 16 transmission roller, 17 baffle, 18 mounting plate, 19U-type plate, 20U-type cutter, 21U-type heat sealing strip, 22 first piston cylinder, 23 second piston cylinder, 24 first shaft rod, 25 second shaft rod, 26 drive rod, 27 first movable piston, 28 spring, 29 second movable piston, 30 mounting block, 31 conveying pipe, 32 connecting rod, 33 first film roller, 34 second film roller, 35 rack plate, 36L-type drive rod, 37 packaging film, 38 limit pressure wheel, 39 gear, 40 synchronous belt, 41 synchronous wheel. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] Reference Figure 1-Figure 12 , an experimental device for treating potatoes by X-ray radiation, comprising a frame 1, on which two X-shaped reinforcement frames 3 are fixed:

[0045] Potato bagging assembly; the potato loading assembly is used for bagging and packaging potatoes; specifically: the potato bagging assembly includes a first bracket 7 fixed to the bottom of the frame 1, a first film roller 33 is rotatably connected to the first bracket 7, a second bracket 9 is fixedly connected to the support plate 10, a second film roller 34 is rotatably connected to the support plate 10, a strip groove is penetrated on the support plate 10, and a packaging film 37 passing through the strip groove is wound on the first film roller 33 and the second film roller 34.

[0046] Potato feeding assembly; the potato feeding assembly comprises a support plate 10 fixed on the frame 1, and a feeding chute 11 is provided through the support plate 10. The potato feeding assembly pushes the potatoes to the potato bagging assembly for bagging and packaging, and the potatoes fall into the feeding chute 11 by gravity;

[0047] The potato feeding assembly includes a fixed frame 12 fixed on a support plate 10, an electric push rod 15 is installed on the frame 12, an output end of the electric push rod 15 is fixedly connected to a wedge plate 13, a limiting groove 14 is provided on the wedge plate 13, a feeding frame 5 is fixedly connected to the support plate 10, and a through groove 6 is penetrated on the feeding frame 5 and is arranged in cooperation with the wedge plate 13, including a transmission mechanism capable of driving the first film roller 33 and the second film roller 34 to rotate, the transmission mechanism including a first shaft rod 24 coaxially fixedly connected to the second film roller 34, and the first shaft rod 24 A one-way bearing 8 is fixedly connected to the upper part, and a second shaft rod 25 is rotatably connected to the second bracket 9. Synchronous wheels 41 are installed on the second shaft rod 25 and the one-way bearing 8. The two synchronous wheels 41 are connected by a synchronous belt 40. A gear 39 is fixed to the second shaft rod 25, and a rack plate 35 is fixedly connected to the gear 39. The rack plate 35 is fixedly connected to the wedge plate 13 through a connecting rod 32. In order to ensure the stable movement of the rack plate 35, a limiting pressure wheel 38 is fixedly connected to the second bracket 9, and the limiting pressure wheel 38 is against the upper end of the rack plate 35.

[0048] Heat-sealing and cutting components; the heat-sealing and cutting components heat-seal and cut the potatoes that are packaged and fall into the feeding chute 11; the heat-sealing and cutting components include a mounting plate 18 and a baffle 17 fixed to the bottom of the frame 1, a first piston cylinder 22 is fixedly connected to the mounting plate 18, a first movable piston 27 is slidably connected in the first piston cylinder 22, a driving rod 26 is fixedly connected to the first movable piston 27, a U-shaped plate 19 is fixedly connected to the driving rod 26, a U-shaped cutter 20 and a U-shaped heat-sealing strip 21 are fixed to the U-shaped plate 19, the U-shaped heat-sealing strip 21 is located inside the U-shaped cutter 20, and a U-shaped heat-sealing strip 21 is provided on the baffle 17. 21 is a heat sealing strip relative to the U-shaped heat sealing strip 21, and the U-shaped heat sealing strip cooperates with the heat sealing strip to heat-seal the packaging film. A mounting block 30 is fixed on the frame 1, and a second piston cylinder 23 is fixedly connected to the mounting block 30. A second movable piston 29 is slidably connected in the second piston cylinder 23, and a spring 28 is fixedly connected to the second movable piston 29. The other end of the spring 28 is fixedly connected to the second piston cylinder 23. The first piston cylinder 22 and the second piston cylinder 23 are connected by a delivery pipe 31, and the medium delivered inside is hydraulic oil. An L-shaped driving rod 36 is fixed on the rack plate 35, and the L-shaped driving rod 36 is arranged opposite to the second movable piston 29.

[0049] X-ray radiation component 4; the packaged potatoes are transported to the X-ray radiation component 4 through a conveying mechanism, and the potatoes are subjected to X-ray radiation treatment by the X-ray radiation component 4. The conveying mechanism includes two transmission rollers 16 rotatably mounted on the X-shaped reinforcement frame 3, and the two transmission rollers 16 are connected by a conveyor belt 2.

[0050] The present invention also discloses a process for treating potatoes using X-ray radiation, comprising the following steps:

[0051] S1, sorting the harvested colored potatoes. Screen the colored potatoes within 20 days after harvest, and keep the colored potatoes without sprouts, disease spots and insects. The weight of the colored potato pieces is required to be more than 100g; place the screened colored potatoes in the feeding frame 5, and pack the colored potatoes into plastic packaging bags with a length of 80cm and a width of 45cm through the cooperation of the potato feeding component and the potato bagging component. The height of the packaging bag after being filled with colored potatoes and laid flat is not higher than 20cm, ready for X-ray radiation treatment;

[0052] S2, placing the bagged colored potatoes flat on the conveyor belt 2, the colored potatoes are X-ray irradiated using a 5MeV high-frequency high-voltage electron accelerator, the equipment model is DD 5MeV-30mA / 1200, the X-ray mode is selected, and the X-ray radiation dose of the colored potato tubers must be strictly controlled between 100Gy and 200Gy; wherein, the relevant parameters in the X-ray mode are: electron beam energy 3 to 5MeV, power 50 to 150kW, beam intensity 5 to 20mA, scanning width 1200mm, energy instability: ≤±2%, beam instability: ≤±2%, scanning non-uniformity ≤±10%, and beam transmission speed 2 to 8m / min;

[0053] S3: storing the colored potatoes after X-ray irradiation in a warehouse, wherein the storage conditions of the colored potatoes are: a temperature of 20° C.±3° C., storage in dark conditions, and a relative humidity of 40% to 70%.

[0054] in:

[0055] Fig.10 The results show that the 100 Gy radiation dose inhibits the sprouting and decay of yellow, red and purple potato tubers after 150 days of storage.

[0056] Fig.11 The changes in water content, total starch content, reducing sugar content, sucrose content and glucose content of red Rose 3 colored potato tubers during storage after 100Gy X-ray radiation treatment. (t test, n=5; ns: no significant difference; *: significant difference, p≤0.05; **: extremely significant difference, p≤0.01)

[0057] Fig.12 Changes in water content, total starch content, reducing sugar content, sucrose content and glucose content of purple purple rose 2 colored potato tubers during storage after 100 Gy X-ray radiation treatment (t test, n = 5; ns: no significant difference; *: significant difference, p ≤ 0.05; **: extremely significant difference, p ≤ 0.01).

[0058] Example 1: X-ray irradiation and storage of potato tubers;

[0059] The selected potatoes were Red Rose No. 3 potatoes with red tubers and Purple Rose No. 2 potatoes with purple tubers for irradiation. Potatoes with different colors of tubers were randomly selected on the 15th day after harvest, and tubers with no germination, no lesions, complete tubers, and tubers weighing more than 100 grams were selected for X-ray irradiation, with a radiation dose of 100Gy. The equipment model was DD5MeV-30mA / 1200, and the X-ray mode was selected. The equipment parameters were: electron beam energy 3MeV, maximum power 100kW, beam intensity 10mA, scanning width 1200mm, energy instability: ≤±2%, beam instability: ≤±2%, scanning unevenness ≤±10%, and beam transmission speed 5m / min. The storage conditions of potato tubers of different colors were: temperature 20℃, storage in dark conditions, relative humidity 60%, and a total storage of 150 days.

[0060] X-ray irradiation, with a radiation dose of 100Gy, was used to store colored potatoes for a long time and observe the changes in potato tubers of different colors. The test results showed that a dose of 100Gy of X-rays had a good inhibitory effect on the sprouting and rotting of colored potatoes (see Fig.10 As shown). Compared with the colored potato tubers that were not irradiated, the Red Rose No. 3 and Purple Rose No. 2 potato tubers were not observed to sprout after being treated with an X-ray radiation dose of 100Gy and stored for 150 days according to the above conditions. After irradiation with an X-ray radiation dose of 100Gy, the colored potato tubers did not show obvious rot when stored for 150 days according to the above conditions. When stored for 150 days, the colored potato tubers that were not irradiated had already shown obvious sprouting and rot. At this time, the non-irradiated potatoes in the control group had severely lost water and were inedible, while the Red Rose No. 3 potato tubers and Purple Rose No. 2 potato tubers in the X-ray radiation 100Gy treatment group could still be used for potato processing.

[0061] Example 2: Determination of tuber moisture content, total starch content, reducing sugar content, sucrose content and glucose content in long-term storage potato tubers;

[0062] The water content, total starch content, reducing sugar content, sucrose content and glucose content of the tubers of Red Rose No. 3 and Purple Rose No. 2 potato tubers were measured, and each treatment was repeated 5 times. The tubers of Red Rose No. 3 and Purple Rose No. 2 potato tubers treated with X-ray irradiation were sampled at 0 days, 60 days and 150 days, and the corresponding physiological indicators were measured to verify the inhibitory effect of the method of the present invention on the low-temperature saccharification phenomenon of colored potatoes during long-term storage, as well as the preservation effect of colored potatoes.

[0063] The specific steps are as follows:

[0064] 1. Determine the moisture content of potato tubers. Weigh the sampled tubers, record the wet weight of the tubers, and then quickly freeze the potato tubers in a -80°C ultra-low temperature refrigerator. Use a freeze dryer to freeze-dry the samples thoroughly, then weigh them again to calculate the moisture content of the potato tubers.

[0065] 2. The starch content of the sampled colored potato tubers was determined by a starch content detection kit (China, Solebao, catalog number: BC0700). The reducing sugar content in the sampled colored potato tubers was determined by a reducing sugar content detection kit (China, Solebao, catalog number: BC0230).

[0066] 3. Determine the sucrose and glucose content in potato tubers by high performance liquid chromatography. Weigh 3 g of fresh potato tubers, dry the sample in a freeze dryer and grind it thoroughly, add 2 ml of 50% acetonitrile, and place it in a water bath at 80°C for 30 min; repeat the above steps and add 5 mg of activated carbon to each sample and vortex mix to decolorize. Centrifuge the sample at 5000 rpm / min for 10 min, take the supernatant, and re-add 5 mg of activated carbon and vortex mix to decolorize again. Thereafter, add 5 ml of 50% acetonitrile and place it in a water bath at 80°C for 30 min. Centrifuge the sample at 5000 rpm / min for 10 min, take the supernatant and filter it with a 0.22 um organic filter membrane. After filtering the sample, use it for high performance liquid chromatography detection.

[0067] The experiment was carried out using an Agilent 1260 Infinity II LC System liquid chromatograph, with 20ul of sample loaded, a flow rate set at 1.2ml / min, a column temperature of 35°C, a differential detector set at 40°C, acetonitrile-water (75:25, V / V) as the mobile phase, and an Agilent ZORBAX NH2 (4.6×250mm, 5um) column. The sucrose and glucose contents were determined by a differential detector.

[0068] The results showed that the method of the present invention made the water content and starch content of the red and purple potatoes in the 100 Gy irradiation group significantly higher than those in the control group (such as Fig.11 As shown, Fig.12 This indicates that the method of the present invention can significantly inhibit the degradation of starch in colored potato tubers and the loss of water in tubers during long-term storage, thereby promoting the preservation of colored potatoes. At the same time, the method of the present invention makes it possible for the reducing sugar content, sucrose content and glucose content of the red rose 3 potato with red tubers and the purple rose 2 potato with purple tubers in the 100 Gy radiation treatment group to be significantly lower than those of the control group (such as Fig.11 As shown, Fig.12 As shown). This shows that the method of the present invention can significantly inhibit the accumulation of reducing sugar content, sucrose content and glucose in the tuber, and inhibit the occurrence of low-temperature saccharification of colored potatoes. Therefore, the research method can achieve the effect of significantly inhibiting the low-temperature saccharification of long-term stored colored potatoes and extending the shelf life of colored potatoes.

[0069] The working principle of the experimental device for treating potatoes using X-ray radiation is further explained:

[0070] The selected potatoes are placed in the loading frame 5. Due to gravity, the potatoes at the bottom are against the support plate 10, and the electric push rod 15 is started;

[0071] The electric push rod 15 drives the wedge plate 13 to move. At this time, the limiting groove 14 abuts against the potato and the potato is located in the limiting groove 14. With the movement of the wedge plate 13, the potato at the bottom can be pushed away, and the wedge plate 13 can limit the potato on the upper side to move upward. Finally, the upper end of the wedge plate 13 abuts against the inner top of the through groove 6 to prevent the potato on the upper side from moving downward.

[0072] The movement of the wedge plate 13 drives the connecting rod 32 and the rack plate 35 to move. The movement of the rack plate 35 drives the gear 39 to rotate. The rotation of the gear 39 drives the second shaft 25 to rotate, thereby driving the synchronous wheel 41 to rotate. Under the transmission of the synchronous belt 40, another synchronous wheel 41 rotates. The rotation of the synchronous wheel 41 drives the one-way bearing 8 to rotate. Under the action of the one-way bearing 8, the synchronous wheel 41 and the first shaft 24 move relative to each other, as shown in FIG. Figure 7 As shown, that is to say, when the one-way bearing 8 rotates counterclockwise at this time, the first shaft 24 is stationary;

[0073] As the electric push rod 15 drives the wedge plate 13 to continue to move, the wedge plate 13 drives the potatoes to collide with the packaging film 37. Due to gravity, the potatoes drive the packaging film 37 to fall into the blanking chute 11 in a U-shape, and the bottom is against the upper end of the conveyor belt 2. At this time, the potatoes drive the packaging film 37 to move due to gravity, and the packaging film 37 drives the first film roller 33 to rotate to release the film. However, at this time, the second film roller 34 is also pulled to rotate counterclockwise. Under the action of the one-way bearing 8, the first shaft 24 is driven to rotate counterclockwise, thereby transmitting to the gear 39 to rotate counterclockwise. However, the slow movement of the rack plate 39 will interfere with the rotation of the first shaft 24 and the second film roller 34, while the first film roller 33 is not interfered. Therefore, under the gravity of the potatoes, the first film roller 33 can rotate and release the film.

[0074] The electric push rod 5 continues to work, and the rack plate 35 drives the L-shaped driving rod 36 to move. Finally, the L-shaped driving rod 36 abuts against the second moving piston 29 and drives the second moving piston 29 to move. The second moving piston 29 moves to squeeze the hydraulic oil and deliver it to the first piston cylinder 22 through the delivery pipe 31. The hydraulic oil in the first piston cylinder 22 increases and drives the first moving piston 27 and the driving rod 26 to move. The movement of the driving rod 26 drives the U-shaped plate 19, the U-shaped cutter 20, and the U-shaped heat sealing strip 21 to move. The U-shaped heat sealing strip 21 cooperates with the heat sealing strip on the baffle 17 to heat-seal the packaging film 37. The U-shaped cutter 20 can cut and separate the heat-sealed packaging film 37. Finally, the packaged potatoes fall on the conveyor belt 2. The X-shaped reinforcement frame 3 is equipped with a motor that drives the transmission roller 16 to rotate, so as to realize the movement of the conveyor belt 2. The packaged potatoes can be transported by the conveyor belt 2, and the potatoes can be subjected to X-ray radiation treatment through the X-ray radiation component 4.

[0075] The output end of the electric push rod 5 is reset, and finally the wedge plate 13 is separated from the through groove 6, and the potatoes at the bottom fall onto the support plate 10. The rack plate 35 is reset to drive the gear 39 to rotate in the opposite direction, thereby realizing the opposite rotation of the synchronous wheel 41. Under the action of the one-way bearing 8, the first shaft rod 24 and the second film roller 34 are rotated, and the packaging film 37 can be rolled up, and the part with holes cut out is rolled up on the second film roller 34 and drives the first film roller 33 to rotate, so that the new packaging film 37 is in place to prepare for the next potato packaging; under the action of the spring 28, the second movable piston 29 is reset, thereby realizing the reset of the first movable piston 27, the U-shaped plate 19, etc.;

[0076] The output end of the electric push rod 5 is extended again, and the above work is repeated, and the potatoes can be packaged one by one and subjected to X-ray radiation treatment.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An experimental device for treating potatoes using X-ray radiation, comprising a frame (1), on which two X-shaped reinforcement frames (3) are fixed, characterized in that: A potato bagging assembly; the potato bagging assembly is used to bag and pack potatoes; A potato feeding assembly; the potato feeding assembly comprises a support plate (10) fixed on a frame (1), a feeding chute (11) being provided through the support plate (10), the potato feeding assembly pushing the potatoes to the potato bagging assembly for bagging and packaging, and the potatoes fall into the feeding chute (11) by gravity; A heat-sealing and cutting component; the heat-sealing and cutting component heat-seals and cuts the potatoes that are packaged and fall into the feeding chute (11); X-ray radiation component (4); the packaged potatoes are transported to the X-ray radiation component (4) by a transport mechanism, and the potatoes are subjected to X-ray radiation treatment by the X-ray radiation component (4).

2. The experimental device for treating potatoes using X-ray radiation according to claim 1, characterized in that: The potato bagging assembly comprises a first bracket (7) fixed at the bottom of a frame (1), a first film roller (33) being rotatably connected to the first bracket (7), a second bracket (9) being fixedly connected to the support plate (10), a second film roller (34) being rotatably connected to the support plate (10), a strip groove penetrating the support plate (10), and packaging films (37) passing through the strip grooves being wound around the first film roller (33) and the second film roller (34).

3. The experimental device for treating potatoes using X-ray radiation according to claim 2, characterized in that: The potato feeding assembly comprises a fixing frame (12) fixed on a support plate (10), an electric push rod (15) is installed on the fixing frame (12), an output end of the electric push rod (15) is fixedly connected to a wedge plate (13), a limiting groove (14) is provided on the wedge plate (13), a feeding frame (5) is fixedly connected to the support plate (10), and a through groove (6) is penetrated through the feeding frame (5) and is arranged to cooperate with the wedge plate (13).

4. The experimental device for treating potatoes using X-ray radiation according to claim 3, characterized in that: The invention comprises a transmission mechanism capable of driving a first film roller (33) and a second film roller (34) to rotate, wherein the transmission mechanism comprises a first shaft (24) coaxially fixedly connected to the second film roller (34), a one-way bearing (8) being fixedly connected to the first shaft (24), a second shaft (25) being rotatably connected to the second bracket (9), a synchronous wheel (41) being installed on the second shaft (25) and the one-way bearing (8), the two synchronous wheels (41) being connected via a synchronous belt (40), a gear (39) being fixedly connected to the second shaft (25), a rack plate (35) being fixedly connected to the gear (39), and the rack plate (35) being fixedly connected to the wedge plate (13) via a connecting rod (32).

5. The experimental device for treating potatoes using X-ray radiation according to claim 4, characterized in that: The second bracket (9) is fixedly connected to a limiting pressure wheel (38), and the limiting pressure wheel (38) abuts against the upper end of the rack plate (35).

6. The experimental device for treating potatoes using X-ray radiation according to claim 4, characterized in that: The heat-sealing cutting assembly comprises a mounting plate (18) and a baffle (17) fixed to the bottom of the frame (1); a first piston cylinder (22) is fixedly connected to the mounting plate (18); a first movable piston (27) is slidably connected inside the first piston cylinder (22); a driving rod (26) is fixedly connected to the first movable piston (27); a U-shaped plate (19) is fixedly connected to the driving rod (26); a U-shaped cutter (20) and a U-shaped heat-sealing strip (21) are fixedly connected to the U-shaped plate (19); the U-shaped heat-sealing strip (21) is located inside the U-shaped cutter (20); and a heat-sealing strip (21) is provided on the baffle (17) opposite to the U-shaped heat-sealing strip (21). The rack (1) is provided with a mounting block (30), a second piston cylinder (23) is fixedly connected to the mounting block (30), a second movable piston (29) is slidably connected inside the second piston cylinder (23), a spring (28) is fixedly connected to the second movable piston (29), the other end of the spring (28) is fixedly connected to the second piston cylinder (23), the first piston cylinder (22) and the second piston cylinder (23) are connected through a delivery pipe (31), and the medium delivered inside is hydraulic oil, an L-shaped driving rod (36) is fixed to the rack plate (35), and the L-shaped driving rod (36) is arranged opposite to the second movable piston (29).

7. The experimental device for treating potatoes using X-ray radiation according to claim 1, characterized in that: The conveying mechanism comprises two transmission rollers (16) rotatably mounted on an X-shaped reinforcement frame (3), and the two transmission rollers (16) are connected via a conveyor belt (2).

8. A process for treating potatoes using X-ray radiation, characterized in that: The experimental device for treating potatoes by X-ray radiation according to any one of claims 1 to 7 comprises the following steps: S1, placing the screened colored potatoes in a loading frame (5), and packing the colored potatoes into plastic packaging bags with a length of 80 cm and a width of 45 cm through the cooperation of a potato loading assembly and a potato bagging assembly, wherein the height of the packaging bag after being filled with colored potatoes and laid flat is no higher than 20 cm, and the bags are ready for X-ray radiation treatment; S2, placing the bagged colored potatoes flat on the conveyor belt (2), using a 5MeV high-frequency high-voltage electron accelerator for X-ray radiation of the colored potatoes, the equipment model is DD 5MeV-30mA / 1200, selecting the X-ray mode, and the X-ray radiation dose of the colored potato tubers must be strictly controlled within a radiation dose range of 100Gy to 200Gy; S3: The colored potatoes irradiated with X-rays are stored in a warehouse.

9. A process for treating potatoes using X-ray radiation according to claim 8, characterized in that: The relevant parameters in the X-ray mode are: electron beam energy 3 to 5 MeV, power 50 to 150 kW, beam current intensity 5 to 20 mA, scanning width 1200 mm, energy instability: ≤±2%, beam current instability: ≤±2%, scanning non-uniformity ≤±10%, and beam transmission speed 2 to 8 m / min.

10. A process for treating potatoes using X-ray radiation according to claim 8, characterized in that: The storage conditions of the colored potatoes are: temperature of 20°C±3°C, storage in dark conditions, and relative humidity of 40% to 70%.

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