Automatic overturning structure for stir-frying melon seeds

Abstract

The invention relates to the field of snack food processing equipment, in particular to a melon seed stir-frying automatic overturning structure which comprises a shell, an overturning cylinder is rotatably arranged in the shell, a supporting plate is fixedly installed on the front side of the shell, a disc plate is rotatably arranged on the rear side of the overturning cylinder, and a separation hopper is jointly arranged between the supporting plate and the disc plate in a front-back sliding mode. According to the device, the rotating overturning cylinder is adopted to drive the pushing plate on the overturning cylinder to repeatedly push melon seeds leftwards, meanwhile, the poking piece arranged between the supporting plate and the disc plate rotates to poke the melon seeds falling down due to gravity on the left portion into the separation hopper, and due to the structure, the melon seeds small in size are thrown into the separation hopper due to large kinetic energy; the melon seeds are intermittently far away from an inner wall heat source of the overturning cylinder, the heating degree is effectively reduced, then by prolonging the total heating time of the melon seeds, it is finally guaranteed that the heating quantity of the melon seeds of different sizes is uniform, and the situation that the quality difference of the melon seeds in the same stir-frying batch is large is avoided.

Description

Technical Field

[0001] The invention relates to the field of snack processing equipment, and in particular to an automatic turning structure for frying melon seeds. Background Art

[0002] As a popular snack food, the flavor and taste of melon seeds largely depend on the frying process. During the frying process, the melon seeds need to be evenly heated and constantly turned to achieve the ideal degree of ripeness, crispy taste and attractive color.

[0003] In the prior art, melon seed frying equipment usually includes a fixed casing with a heating component inside the casing to provide the heat required for frying. A cylindrical stir-frying cylinder is rotatably arranged inside the casing, and the stir-frying cylinder serves as the main working chamber for carrying and stir-frying the melon seeds. A spiral material guide plate is fixedly installed on the inner wall of the stir-frying cylinder.

[0004] During the production process, a large amount of salt is usually added to the stir-fry cylinder as a heat transfer medium. When the equipment is working, the driving mechanism drives the stir-fry cylinder to rotate around its axis. The mixture of melon seeds and salt particles in the cylinder is continuously picked up, thrown down and mixed by the spiral plate under the combined action of gravity, centrifugal force and spiral plate. The salt particles wrap around the melon seeds in this process, aiming to help the melon seeds absorb heat more evenly.

[0005] However, the above-mentioned existing stir-frying structure adopts a uniform stir-frying method to process all melon seeds. Since there are significant size differences between individual melon seeds in the same batch, at the same stir-frying drum speed and heating intensity, even with salt grains as the heat transfer medium, smaller melon seeds will be heated faster due to their light weight, and thus easily over-fried or even burnt.

[0006] However, larger melon seeds are heavier and take longer for heat to penetrate. They may not be fully wrapped by the salt particles, resulting in insufficient heating and incomplete frying. This uneven heating phenomenon causes significant differences in the quality of melon seeds within the same frying batch, which cannot meet the requirements for frying uniformity and affects the overall taste and market value of the product. Summary of the Invention

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic turning structure for frying melon seeds, including an outer shell, a turning cylinder rotatably arranged inside the outer shell, a support plate fixedly installed on the front side of the outer shell, a disc plate rotatably arranged on the rear side of the turning cylinder, and a separating bucket is arranged between the support plate and the disc plate for sliding back and forth together.

[0008] Pushing plates are fixedly installed on the inner side of the turning cylinder at equal intervals along its circumference. The pushing plates rotated to the left side of the turning cylinder have an inclined structure with the front higher and the back lower. A toggle piece is rotatably arranged between the support plate and the disc plate.

[0009] The inner side surface of the turning cylinder is provided with arc bowls and screening bowls at equal intervals along its circumference. The arc bowls and screening bowls are arranged alternately, and the screening bowl rotated to the left of the turning cylinder is located above the corresponding arc bowl.

[0010] When the turning cylinder rotates, the turning cylinder repeatedly pushes the melon seeds inside the turning cylinder to the left through the pushing plate, and the rotating toggle piece toggles the falling melon seeds into the separation bucket, so that the smaller melon seeds are thrown into the separation bucket, so as to reduce the heating time of the small melon seeds.

[0011] Preferably, an asynchronous motor is fixedly mounted on the housing, a driving gear is fixedly mounted on the output shaft of the asynchronous motor, and a driven gear meshing with the driving gear is fixedly mounted on the outer side of the turning cylinder.

[0012] Preferably, the left side of the separating bucket is in a horizontal posture, the right side of the separating bucket is in an inclined posture with the right side lower and the left side higher, and sieve holes are provided on the arc-shaped wall of the separating bucket.

[0013] Preferably, a shaft is rotatably provided at the axis position of the separating bucket, and a discharge plate and a dividing plate arranged along its radial direction are fixedly mounted on the shaft, and the rotating shaft can drive the discharge plate to fit on the inner side surface of the separating bucket.

[0014] Preferably, the length of the dividing plate is shorter than that of the discharging plate, and toothed discs are fixedly installed on the rear side of the disc plate and the outer side of the shaft, the two toothed discs are arranged in a centrally symmetrical manner, and a coil spring is provided between the toothed disc on the shaft and the outer shell.

[0015] Preferably, the rear portion of the shaft is a hexagonal column structure, a synchronous motor is fixedly mounted on the rear side of the housing, and the output shaft of the synchronous motor is connected to the hexagonal column structure of the shaft in a forward and backward sliding manner.

[0016] Preferably, the axis position of the toggle member is a rod-shaped structure, and a number of comb plate structures are fixedly installed on the outer side of the rod-shaped structure at equal intervals along its circumference. A number of buffer members connected to the toggle member for rotation are arranged at equal intervals along its axial direction, and a torsion spring is arranged between the buffer member and the toggle member.

[0017] Preferably, the arc bowl is fixedly connected to the turning cylinder, the screening bowl is connected to the turning cylinder for front and rear sliding, an L-shaped rod is fixedly installed on the rear side of the screening bowl, a track ring is fixedly installed on the rear side of the disc plate, and the L-shaped rod is slidably connected to the inside of the groove of the track ring.

[0018] Preferably, an inclined screen plate is fixedly installed between the front side of the disc plate and the support plate and is located above the left side of the separating bucket. A number of partitions are fixed on the upper side of the inclined screen plate at equal intervals along the front-to-back direction, and the partitions are gradually tilted backward from top to bottom.

[0019] Preferably, an actuator motor is fixedly mounted on the rear side of the disc plate, and an output shaft of the actuator motor is fixedly connected to the toggle member.

[0020] The beneficial effects of the present invention are: 1. The present invention adopts a rotating turning cylinder to drive the pushing plate on it to push the melon seeds repeatedly to the left. At the same time, the toggle member arranged between the support plate and the disc plate rotates to toggle the melon seeds that fall on the left due to gravity into the separation bucket. This structure allows smaller melon seeds to be thrown into the separation bucket, intermittently away from the heat source of the inner wall of the turning cylinder, effectively reducing their degree of heat exposure, and then by extending the overall heating time of the melon seeds, ultimately ensuring that the heat exposure of melon seeds of different volumes is uniform, avoiding large differences in the quality of melon seeds in the same frying batch.

[0021] 2. The present invention adopts a buffer member and a torsion spring structure provided on the toggle member to buffer the contact of the melon seeds. When the larger melon seeds contact the buffer member, it is easy to push it to rotate, thereby obtaining less kinetic energy, while the smaller melon seeds are difficult to push the buffer member to rotate and obtain greater kinetic energy, thereby significantly enhancing the separation effect of large and small melon seeds. At the same time, the melon seeds with a farther flying trajectory are screened for the second time by tilting the screen plate, further increasing the grading effect of large and small melon seeds.

[0022] 3. The present invention adopts a continuously rotating shaft to drive the discharge plate and the dividing plate to alternately scrape the melon seeds inside the separating bucket. When the shaft rotates, the two gear plates engage with each other, and cooperate with the action of the spiral spring to drive the separating bucket to vibrate back and forth. This vibration causes the large melon seeds inside the separating bucket to move upward, and the shorter dividing plate preferentially scrapes the large melon seeds that move upward out of the separating bucket, significantly improving the screening accuracy.

[0023] Fourth, the present invention adopts a turning cylinder to drive the arc bowl and the sieve bowl to rotate synchronously. The sieve bowl produces back and forth shaking during rotation through the cooperation of the L-shaped rod and the track ring. This shaking efficiently shakes the salt grains on the sieve bowl into the corresponding arc bowl below, burying the melon seeds carried in the arc bowl, greatly increasing the degree of salt wrapping around the melon seeds, and thereby improving the uniformity of frying. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a partial cross-sectional view of the outer shell, the turning cylinder, the inclined screen plate and the arc-shaped bowl in the present invention.

[0027] Figure 3 It is a partial cross-sectional view of the housing, track ring, actuator motor and shaft in the present invention.

[0028] Figure 4 It is a partial cross-sectional view of the turning cylinder, discharge plate, support plate and separation bucket in the present invention.

[0029] Figure 5 It is a fracture diagram of the disc plate, inclined screen plate, partition plate and support plate in the present invention.

[0030] Figure 6 It is a partial structural diagram of the disc plate, the actuator motor, the toggle member and the buffer member in the present invention.

[0031] Figure 7 It is a partial structural diagram of the disc plate, track ring, screening bowl and L-shaped rod in the present invention.

[0032] Figure 8 It is a partial structural diagram of the separation bucket, toothed disc, material dividing plate and discharge plate in the present invention.

[0033] Figure 9 It is a structural schematic diagram of the separation bucket in the present invention.

[0034] In the figure: 1. Shell; 2. Turning cylinder; 3. Support plate; 4. Disc plate; 5. Separation bucket; 6. Inclined sieve plate; 11. Asynchronous motor; 12. Driving gear; 13. Driven gear; 21. Push plate; 22. Arc bowl; 23. Screen bowl; 31. Toggle member; 41. Toothed disc; 51. Shaft; 52. Discharge plate; 53. Separation plate; 54. Synchronous motor; 61. Partition; 231. L-shaped rod; 232. Track ring; 311. Buffer; 312. Execution motor. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0036] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A melon seed frying automatic turning structure comprises a shell 1, a turning cylinder 2 is rotatably provided inside the shell 1, a support plate 3 is fixedly installed on the front side of the shell 1, a disc plate 4 is rotatably provided on the rear side of the turning cylinder 2, and a separating bucket 5 is provided between the support plate 3 and the disc plate 4 for sliding back and forth together.

[0037] See Figure 4 and Figure 6 On the inner side of the turning cylinder 2, there are fixedly installed push plates 21 at equal intervals along its circumference. The push plate 21 rotated to the left side of the turning cylinder 2 presents an inclined structure with the front higher and the back lower. A toggle member 31 is rotatably provided between the support plate 3 and the disc plate 4.

[0038] See Figure 2An asynchronous motor 11 is fixedly mounted on the housing 1 , a driving gear 12 is fixedly mounted on the output shaft of the asynchronous motor 11 , and a driven gear 13 meshing with the driving gear 12 is fixedly mounted on the outer side of the flip cylinder 2 .

[0039] It should be noted that if Figure 1 and Figure 2 As shown, a number of spiral blades are fixedly installed on the front side of the inner side of the turning cylinder 2 at equal intervals along its circumference. The spiral blades are used to transport the melon seeds on the front side of the turning cylinder 2 to the inside of the turning cylinder 2 when rotating in the forward direction, and can maintain the transport function to prevent the melon seeds from escaping from the turning cylinder 2 when stir-frying. At the same time, when the turning cylinder 2 rotates in the reverse direction, the melon seeds inside the turning cylinder 2 can be transported outward to complete the feeding function.

[0040] It should also be noted that a heating component for heating the turning drum 2 is provided inside the housing 1 . The heating component is not shown in the figure and is a commonly used method in the prior art, so it will not be described in detail herein.

[0041] When it is necessary to fry the melon seeds, the operator first starts the heating component to preheat the wall of the turning drum 2. Then, the operator puts salt grains into the turning drum 2 and starts the asynchronous motor 11. The asynchronous motor 11 transmits the power to the driven gear 13 through the driving gear 12, thereby driving the turning drum 2 to rotate in the forward direction, that is, the turning drum 2 rotates clockwise. The spiral blades on the turning drum 2 transport the salt grains to the inner wall of the turning drum 2, thereby preheating the salt grains.

[0042] When the salt grains are heated to a certain temperature, the operator adds the melon seeds to be fried into the turning cylinder 2, so that the turning cylinder 2 transports the melon seeds to the inside of the turning cylinder 2 through the spiral blades thereon, and heats the melon seeds by the temperature of the inner wall of the turning cylinder 2. At the same time, the rotating turning cylinder 2 drives the pushing plate 21 thereon to rotate synchronously, so that the pushing plate 21 continuously pushes the melon seeds and salt grains to the upper left. When the pushing plate 21 drives the melon seeds and salt grains to rotate to the upper part of the toggle member 31, the melon seeds and salt grains slide off the pushing plate 21 under the action of gravity, thereby turning the melon seeds and salt grains.

[0043] It should be noted that by pushing the melon seeds with the inclined push plate 21, the melon seeds can move backward along the axial direction of the turning cylinder 2 to a certain extent when they slide off the push plate 21, thereby preventing the turned melon seeds from escaping from the turning cylinder 2. At the same time, when the turning cylinder 2 rotates counterclockwise, the push plate 21 pushes the melon seeds inside the turning cylinder 2 to the outside of the turning cylinder 2.

[0044] See Figure 3 and Figure 4 An actuator motor 312 is fixedly mounted on the rear side of the disc plate 4 , and an output shaft of the actuator motor 312 is fixedly connected to the toggle member 31 .

[0045] When the operator adds melon seeds into the turning drum 2, the execution motor 312 is started to drive the toggle member 31 to rotate clockwise, so that the melon seeds sliding off the push plate 21 come into contact with the rotating toggle member 31, so that the toggle member 31 contacts and pushes the melon seeds, giving the melon seeds kinetic energy to fly to the right. Since the smaller melon seeds have smaller mass, the smaller melon seeds obtain a larger horizontal initial velocity under the same impulse of the toggle member 31, so that the smaller melon seeds fly farther horizontally, so that the smaller melon seeds are thrown and fall into the inside of the separation bucket 5, thereby realizing the distinction between large and small melon seeds.

[0046] It should be noted that the rotation speed of the toggle member 31 can be adjusted by a person skilled in the art to push the falling melon seeds, thereby realizing the separation of the melon seeds by volume, and preventing the toggle member 31 from crushing the melon seeds.

[0047] When the smaller melon seeds are thrown into the separating bucket 5, the smaller melon seeds are temporarily away from the inner wall of the turning cylinder 2, thereby reducing the degree of heating of the smaller melon seeds by the inner wall of the turning cylinder 2, thereby preventing the small melon seeds from being overheated and burnt under the same heating time. At the same time, the heating time of the melon seeds is extended as a whole, so that the larger melon seeds can get more heating, thereby ensuring that the large melon seeds are heated thoroughly and ensuring the uniformity of frying of the same heated batch of melon seeds.

[0048] It should be noted that the rotation speed of the turning drum 2 and the overall heating time of the melon seeds by the turning drum 2 can be adjusted by those skilled in the art to achieve the function of uniformly heating and cooking the melon seeds in the turning drum 2.

[0049] In order to improve the effect of distinguishing large and small melon seeds, the present invention has designed the following structure: Figure 2 、 Figure 4 and Figure 5 An inclined sieve plate 6 is fixedly installed between the front side of the disc plate 4 and the support plate 3, and is located above the left part of the separating bucket 5. The inclined sieve plate 6 is higher on the right and lower on the left. A number of partitions 61 are fixed on the upper side of the inclined sieve plate 6 at equal intervals along the front-to-back direction. The partitions 61 are gradually tilted backward from top to bottom.

[0050] When the toggle member 31 rotates, the linear velocity of the end of the toggle member 31 away from its axial position is the largest. When the end of the toggle member 31 away from its axial position contacts the melon seeds, the melon seeds that are subjected to a larger impulse or the melon seeds that are pushed by the secondary contact with other flying melon seeds are easily thrown to a farther distance, causing these melon seeds to fly and fall onto the upper side surface of the inclined sieve plate 6. Then these melon seeds slide to the lower left along the upper side surface of the inclined sieve plate 6. In this process, the melon seeds on it are filtered by the inclined sieve plate 6, so that the smaller melon seeds pass through the inclined sieve plate 6 and fall directly into the separating bucket 5, and the larger melon seeds slide along the inclined sieve plate 6 to the inner wall of the turning cylinder 2, thereby continuing to stir-fry the large melon seeds, thereby ensuring the effect of distinguishing between large and small melon seeds.

[0051] Furthermore, the upper side of the inclined screen plate 6 can be divided into several areas by a number of partitions 61, so that the melon seeds sliding on the inclined screen plate 6 can move along the guidance of the partitions 61, and the inclined partitions 61 increase the time that the melon seeds slide on the inclined screen plate 6, thereby increasing the screening effect of the inclined screen plate 6 on the melon seeds. The inclined partitions 61 can also guide the melon seeds backward to prevent them from escaping from the turning cylinder 2.

[0052] It should be noted that the inclination angle of the inclined screen plate 6 is determined by debugging by those skilled in the art, which can ensure that the melon seeds slide off the inclined screen plate 6 and prevent the melon seeds from being trapped on the inclined screen plate 6.

[0053] In order to enhance the kinetic energy imparted by the toggle member 31 to different large and small melon seeds, so as to better distinguish between large and small melon seeds, the present invention has designed the following technical structure: Figure 2 、 Figure 4 and Figure 6 The axis position of the toggle member 31 is a rod-shaped structure, and a number of comb plate structures are fixedly installed on the outer side of the rod-shaped structure at equal intervals along its circumference. A number of buffer members 311 rotatably connected to the toggle member 31 are arranged at equal intervals along its axial direction. A torsion spring is arranged between the buffer member 311 and the toggle member 31, which is not shown in the figure.

[0054] It should be noted that the buffer member 311 is composed of a central annular structure and a plurality of outer square rod-shaped structures that are arranged at equal intervals in the circumferential direction.

[0055] When the toggle member 31 rotates, the toggle member 31 toggles the melon seeds through its comb plate structure, and at the same time, the toggle member 31 drives the buffer member 311 thereon to rotate synchronously through the torsion spring, so that when the buffer member 311 contacts the melon seeds, the melon seeds hinder the rotation of the buffer member 311, thereby causing the buffer member 311 to deflect slightly relative to the toggle member 31, thereby buffering the rigid contact with the melon seeds.

[0056] Since smaller melon seeds have smaller mass, the impact force of the buffer 311 on them is smaller, resulting in smaller deflection of the buffer 311, so that the buffer 311 almost maintains rigid contact with the small melon seeds, thereby pushing the small melon seeds out at a higher speed, making the small melon seeds fly farther, while large melon seeds fly closer, thereby magnifying the difference in flying distances between large and small melon seeds and improving the effect of distinguishing large and small melon seeds.

[0057] It should be noted that the elastic performance of the torsion spring can be selected by technicians in this field, and combined with the adjustment of the rotation speed of the toggle member 31 by technicians in this field, it is possible to achieve the effect of amplifying the difference in flying distance between large and small melon seeds.

[0058] See Figure 4 and Figure 8 The separating bucket 5 is rotatably provided with a shaft rod 51 , on which a discharge plate 52 and a dividing plate 53 arranged radially thereof are fixedly mounted. The rotating shaft rod 51 can drive the discharge plate 52 to fit the inner side surface of the separating bucket 5 .

[0059] See Figure 3 and Figure 8 The rear portion of the shaft 51 is a hexagonal column structure, and a synchronous motor 54 is fixedly mounted on the rear side of the housing 1 . The output shaft of the synchronous motor 54 is connected to the hexagonal column structure of the shaft 51 in a forward and backward sliding manner.

[0060] Continue reading Figure 3 and Figure 8 The length of the dividing plate 53 is shorter than that of the discharging plate 52. The rear side of the disc plate 4 and the outer side of the shaft 51 are fixedly mounted with toothed discs 41. The two toothed discs 41 are arranged in a centrally symmetrical manner. A coil spring is provided between the toothed disc 41 on the shaft 51 and the housing 1.

[0061] It should be noted that if Figure 8 As shown, the toothed disc 41 is composed of a disc-shaped plate structure and a plurality of wedge-shaped structures fixedly installed on the end surface of the disc-shaped structure at equal intervals along the circumference thereof.

[0062] See Figure 4 、 Figure 8 and Figure 9 The left side of the separating bucket 5 is in a horizontal posture, the right side of the separating bucket 5 is in an inclined posture with the right side lower and the left side higher, and a sieve hole is provided on the arc-shaped wall of the separating bucket 5.

[0063] When the toggle member 31 starts to rotate clockwise, the synchronous motor 54 is started to drive the shaft 51 to rotate counterclockwise, and the shaft 51 drives the toothed disc 41 thereon to rotate. During this process, the coil spring pushes the toothed disc 41 on the shaft 51 forward through its pre-loaded elastic force, so that the wedge-shaped structure of the toothed disc 41 on the shaft 51 rotates to contact the wedge-shaped structure of the other toothed disc 41, which makes the wedge-shaped surfaces of the wedge-shaped structures on the two toothed discs 41 contact, so that the toothed disc 41 on the rear side of the disc plate 4 pushes the toothed disc 41 on the shaft 51 backward.

[0064] The toothed disc 41 on the shaft 51 drives the shaft 51 to move backward, and at the same time, the shaft 51 drives the separating bucket 5 to move backward. Then, when the toothed disc 41 on the shaft 51 rotates to the point where the wedge-shaped structures on the two toothed discs 41 are staggered, the coil spring quickly pushes the toothed disc 41 on the shaft 51 forward to reset, and at the same time, the separating bucket 5 moves forward quickly. Through the continuous rotation of the shaft 51, the separating bucket 5 continues to move back and forth.

[0065] By continuously moving the separating bucket 5 back and forth, the melon seeds and salt grains inside the separating bucket 5 are shaken, and the salt grains inside the separating bucket 5 are accelerated to pass through the sieve holes and fall onto the wall of the turning cylinder 2, preventing the salt grains from overheating the small-volume melon seeds. At the same time, the melon seeds inside the separating bucket 5 can be vibrated. During the vibration process, the melon seeds will undergo convection and gap filling. Small melon seeds are more likely to move downward through the gaps between the particles and fill the gaps at the bottom due to their small size and light weight. Large melon seeds are large in size and weight, and are not easy to enter these gaps. Instead, they are squeezed upward by the small melon seeds.

[0066] Then the rotating shaft 51 drives the dividing plate 53 to rotate to the lower part of the shaft 51, so that the dividing plate 53 extends into the interior of the separating bucket 5 and rotates, thereby pushing the large melon seeds moved to the upper part of the separating bucket 5 to the right. As the dividing plate 53 rotates to the right inclined position of the separating bucket 5, the large melon seeds in the separating bucket 5 are pushed to the outside of the separating bucket 5 by the dividing plate 53 and fall onto the wall of the turning cylinder 2 to be heated, thereby further refining the distinction between large and small melon seeds and improving the heating uniformity.

[0067] Then the shaft 51 drives the discharge plate 52 to rotate to the inside of the separation bucket 5, so that the discharge plate 52 rotates in contact with the inner curved wall of the separation bucket 5, thereby pushing all the melon seeds inside the separation bucket 5 to the wall of the turning cylinder 2, so that the small melon seeds are heated again.

[0068] See Figure 4 and Figure 7 On the inner side surface of the turning cylinder 2, arc-shaped bowls 22 and sieve bowls 23 are arranged at equal intervals along the circumference thereof. The arc-shaped bowls 22 and sieve bowls 23 are arranged alternately. The sieve bowl 23 rotated to the left side of the turning cylinder 2 is located on the upper part of the corresponding arc-shaped bowl 22. The arc-shaped wall of the sieve bowl 23 is provided with sieve holes for sieving salt particles.

[0069] When the turning cylinder 2 starts to rotate, the turning cylinder 2 drives the arc-shaped bowl 22 and the sieve bowl 23 thereon to rotate synchronously, so that when the arc-shaped bowl 22 and the sieve bowl 23 rotate, they are loaded with melon seeds and salt grains. When the arc-shaped bowl 22 and the sieve bowl 23 at the corresponding positions rotate to the left part of the turning cylinder 2, the salt grains inside the sieve bowl 23 pass through the sieve holes of the sieve bowl 23 under the action of gravity and fall onto the arc-shaped bowl 22, so that these falling salt grains bury the melon seeds carried in the arc-shaped bowl 22, greatly increasing the degree of salt wrapping of the melon seeds, thereby improving the uniformity of frying.

[0070] It should be noted that when the salt grains inside the sieve bowl 23 fall into the arc-shaped bowl 22, the melon seeds inside the sieve bowl 23 lack the salt grains to cover them. However, when the arc-shaped bowl 22 and the sieve bowl 23 rotate to the right side of the turning cylinder 2, the openings of the arc-shaped bowl 22 and the sieve bowl 23 face downward, so that the melon seeds and salt grains inside the arc-shaped bowl 22 and the sieve bowl 23 fall onto the inner wall of the turning cylinder 2, and are pushed and mixed again by the pushing plate 21, thereby avoiding the situation where the melon seeds inside the sieve bowl 23 are heated less uniformly than the melon seeds inside the arc-shaped bowl 22. Moreover, since the melon seeds and salt grains in the arc-shaped bowl 22 are already mixed, the sieve bowl 23 only needs to leak a small amount of salt grains to cover the opening of the arc-shaped bowl 22, thereby reducing the impact of salt grains on the heating of the melon seeds in the sieve bowl 23.

[0071] In order to increase the speed at which the salt particles are screened from the screening bowl 23, the following structure is designed in this embodiment: Figure 4 and Figure 7 The arc bowl 22 is fixedly connected to the turning cylinder 2, the screening bowl 23 is connected to the turning cylinder 2 for sliding forward and backward, an L-shaped rod 231 is fixedly installed on the rear side of the screening bowl 23, and a track ring 232 is fixedly installed on the rear side of the disc plate 4, and the L-shaped rod 231 is slidably connected to the inside of the slot of the track ring 232.

[0072] It should be noted that the notches on the track ring 232 are in a closed-loop wave structure.

[0073] When the sieve bowl 23 rotates synchronously with the flip drum 2, the sieve bowl 23 drives the L-shaped rod 231 thereon to move along the wave structure groove of the track ring 232, so that the L-shaped rod 231 continues to move back and forth under the guidance of the track ring 232, and then the L-shaped rod 231 drives the sieve bowl 23 to move back and forth synchronously, so as to continuously shake the salt grains and melon seeds in the sieve bowl 23, so that the salt grains can be quickly sieved out of the sieve bowl 23, thereby quickly burying the melon seeds in the arc bowl 22.

[0074] See Figures 1 to 9When stir-frying melon seeds, the present invention also includes the following steps: in the first step, the operator starts the heating component to preheat the wall of the turning cylinder 2, and then the operator puts salt grains into the turning cylinder 2 and starts the asynchronous motor 11, so that the turning cylinder 2 rotates clockwise to preheat the salt grains.

[0075] In the second step, the operator adds the melon seeds into the turning cylinder 2 so that the inner wall of the turning cylinder 2 heats the melon seeds. At the same time, the pushing plate 21 continuously pushes the melon seeds and salt grains to the upper left, and the melon seeds and salt grains slide off the pushing plate 21 under the action of gravity, thereby turning the melon seeds and salt grains.

[0076] The third step is to start the execution motor 312 to drive the toggle member 31 to rotate clockwise. The toggle member 31 drives the buffer member 311 thereon to rotate synchronously through the torsion spring, so that the buffer member 311 pushes the melon seeds to fly toward the separation bucket 5, and amplifies the difference in flying distances of large and small melon seeds, thereby improving the effect of distinguishing large and small melon seeds.

[0077] In the fourth step, some melon seeds that are thrown and fall onto the upper side of the inclined sieve plate 6 slide to the lower left along the upper side of the inclined sieve plate 6. During this process, the melon seeds on them are filtered by the inclined sieve plate 6, so that the smaller melon seeds pass through the inclined sieve plate 6 and fall directly into the separation bucket 5.

[0078] The fifth step is to start the synchronous motor 54 to drive the shaft 51 to rotate counterclockwise, so that the separating bucket 5 continues to move back and forth, and shake the melon seeds and salt grains inside the separating bucket 5, accelerating the salt grains inside the separating bucket 5 to pass through the sieve holes and fall onto the wall of the turning cylinder 2, while moving the large melon seeds to the top of the separating bucket 5.

[0079] In the sixth step, the shaft 51 drives the dividing plate 53 to push the large melon seeds moved to the upper part of the dividing bucket 5 to the left, so that the large melon seeds in the dividing bucket 5 are pushed to the outside of the dividing bucket 5 by the dividing plate 53 and fall onto the wall of the turning cylinder 2 to be heated, thereby further refining the effect of distinguishing large and small melon seeds and improving the heating uniformity.

[0080] In the seventh step, the shaft 51 drives the discharge plate 52 to rotate to the inside of the separation bucket 5, so that the discharge plate 52 rotates in contact with the inner curved wall of the separation bucket 5, thereby pushing all the melon seeds inside the separation bucket 5 to the wall of the turning cylinder 2, so that the small melon seeds are heated again.

[0081] In the eighth step, the turning cylinder 2 drives the arc-shaped bowl 22 and the sieving bowl 23 thereon to rotate synchronously. At the same time, the track ring 232 pushes the sieving bowl 23 to shake continuously, so that the salt particles are quickly sifted from the sieving bowl 23 into the arc-shaped bowl 22, burying the melon seeds carried in the arc-shaped bowl 22, greatly increasing the degree of salt wrapping around the melon seeds, thereby improving the uniformity of frying.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0083] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0084] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0085] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic turning structure for frying melon seeds, comprising a shell, a turning cylinder rotatably arranged inside the shell, characterized in that: A support plate is fixedly installed on the front side of the shell, and a disc plate is rotatably installed on the rear side of the turning cylinder. A separation bucket is provided between the support plate and the disc plate, which slides forward and backward together. Pushing plates are fixedly installed on the inner side of the turning cylinder at equal intervals along its circumference. The pushing plates rotated to the left side of the turning cylinder are inclined with the front higher and the back lower. A toggle member is rotatably provided between the support plate and the disc plate. The inner side surface of the rotating cylinder is provided with arc-shaped bowls and sieve bowls at equal intervals along its circumference. The arc-shaped bowls and sieve bowls are arranged alternately. The sieve bowls rotated to the left of the rotating cylinder are located above the corresponding arc-shaped bowls. Part of the salt particles falling from the sieve bowls wrap the melon seeds in the arc-shaped bowls. When the turning cylinder rotates, the turning cylinder repeatedly pushes the melon seeds inside the turning cylinder to the left through the pushing plate, and the rotating toggle piece toggles the falling melon seeds into the separation bucket, so that the smaller melon seeds are thrown into the separation bucket, so as to reduce the heating time of the small melon seeds.

2. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: An asynchronous motor is fixedly mounted on the shell, a driving gear is fixedly mounted on the output shaft of the asynchronous motor, and a driven gear meshing with the driving gear is fixedly mounted on the outer side of the turning cylinder.

3. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: The left side of the separating bucket is in a horizontal posture, the right side of the separating bucket is in an inclined posture with the right side lower and the left side higher, and sieve holes are opened on the arc-shaped wall of the separating bucket.

4. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: The axis position of the separating bucket is rotatably provided with a shaft rod, on which a discharge plate and a dividing plate arranged along its radial direction are fixedly mounted, and the rotating shaft rod can drive the discharge plate to fit on the inner side surface of the separating bucket.

5. The automatic turning structure for frying melon seeds according to claim 4, characterized in that: The length of the dividing plate is shorter than that of the discharging plate. Tooth discs are fixedly installed on the rear side of the disc plate and the outer side of the shaft. The two tooth discs are arranged in a central symmetrical manner. A coil spring is provided between the tooth disc on the shaft and the outer shell.

6. The automatic turning structure for frying melon seeds according to claim 4, characterized in that: The rear portion of the shaft is in a hexagonal column structure, a synchronous motor is fixedly mounted on the rear side of the housing, and an output shaft of the synchronous motor is connected to the hexagonal column structure of the shaft in a forward and backward sliding manner.

7. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: The axis position of the toggle member is a rod-shaped structure, and a plurality of comb plate structures are fixedly installed on the outer side of the rod-shaped structure at equal intervals along its circumference. A plurality of buffer members connected to the toggle member for rotation are arranged at equal intervals along its axial direction, and a torsion spring is arranged between the buffer member and the toggle member.

8. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: The arc bowl is fixedly connected to the turning cylinder, the screening bowl is connected to the turning cylinder for front and rear sliding, an L-shaped rod is fixedly installed on the rear side of the screening bowl, a track ring is fixedly installed on the rear side of the disc plate, and the L-shaped rod is slidably connected to the inside of the notch of the track ring.

9. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: An inclined screen plate located above the left portion of the separating bucket is fixedly installed between the front side of the disc plate and the support plate. A plurality of partitions are fixed on the upper side of the inclined screen plate at equal intervals along the front-to-back direction. The partitions are gradually tilted backward from top to bottom.

10. The automatic turning structure for frying melon seeds according to claim 1, characterized in that: An executing motor is fixedly mounted on the rear side of the disc plate, and an output shaft of the executing motor is fixedly connected to the toggle member.

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