Auxiliary discharging device for steam rice conveying belt

Abstract

An auxiliary discharging device for a steam rice conveying belt comprises a rack arranged at the discharging end of the conveying belt, a transfer belt is arranged on the rack, the rack is located below the conveying belt, the side, close to the conveying belt, of the rack is connected with a scraping plate, and the edge of the scraping plate is attached to the conveying belt. The conveying belt and the scraping plate which are lower in position are arranged on the side of the conveying belt, so that rice discharged from a pot can be completely transferred to the conveying belt, in the transferring process, the rice adhering to the conveying belt is scraped off by the scraping plate, the rice is loosened due to overturning and falling, and the low-viscosity rice is laid on the conveying belt; meanwhile, an air nozzle for spraying air is arranged at the joint of the conveyor belt and the transfer belt, so that the spread rice is cooled by blowing air, and diffused steam is dispersed.

Description

Technical Field

[0001] The invention relates to the field of cooking, and in particular to an auxiliary feeding device for a steam rice conveyor belt. Background Art

[0002] Steamed rice is a rice cooking method that uses steam to cook rice. The rice grains are cooked by the heat of steam. The soaked raw rice is placed in a steamer, steamer or other steam equipment, and the high temperature of the steam penetrates the rice grains, making them evenly heated and gelatinized. The rice grains do not directly contact a large amount of water, but transfer heat and a small amount of water through steam to avoid excessive water absorption and resulting in softness. Compared with direct boiling or stewing in a rice cooker, the characteristics of steamed rice are that it has a soft texture, distinct grains, and can better retain the nutrients of rice.

[0003] After the steamed rice is cooked, the lid is opened. Currently, the rice falls directly onto the conveyor belt after it is taken out of the pot. A transfer device is set at the discharge end of the conveyor belt, which is usually an insulation cylinder. During the transmission on the conveyor belt, the rice grains may adhere to the conveyor belt. The reasons for adhesion include: the rice grains absorb too much water and become sticky, or the water volume is not properly controlled during steaming, or the rice grains accumulate on the conveyor belt after it is taken out of the pot and cannot be spread out and dissipated in time. At present, the staff manually scrapes it with tools such as rice shovels, which is inefficient.

[0004] The invention provides an auxiliary unloading device for a steam rice conveyor belt, which is connected to the unloading side of the existing conveyor belt and automatically scrapes off the rice grains adhered to the conveyor belt. Summary of the invention

[0005] According to the problems raised in the background technology, the present invention provides an auxiliary unloading device for a steam rice conveyor belt to solve the problems. The present invention will be further explained below.

[0006] An auxiliary unloading device for a steam rice conveyor belt comprises a frame arranged at the discharging end of the conveyor belt, a transfer belt is arranged on the frame, the frame is located below the conveyor belt, a scraper is connected to one side of the frame close to the conveyor belt, and the edge of the scraper is attached to the conveyor belt.

[0007] Preferably, a vibration mechanism is provided on the frame, including a rotating shaft rotatably arranged on the frame and located below the conveyor belt, a first motor is fixed on one side of the frame, the rotating shaft is connected to the output shaft of the first motor; a cam is connected to the rotating shaft by a key; a column shaft is also connected to both sides of the frame through a suspension arm, a rotating rod is rotatably connected to the column shaft, one end of the rotating rod is connected to a vibration plate, and the other end contacts the cam surface, and a torsion spring sleeved outside the column shaft is provided at the connection between the rotating rod and the column shaft. The vibration mechanism intermittently impacts the conveyor belt with a small amplitude, causing the conveyor belt to vibrate with a small amplitude, thereby vibrating the accumulated rice.

[0008] Preferably, an air nozzle is provided above the conveyor belt, and the air nozzle blows air toward the scraper, so as to blow away the steam when the rice is spread out over an increased area and the temperature is high.

[0009] Preferably, a rake is suspended on the conveyor belt, and the rake is connected to a slide bar, and the slide bar is lifted and lowered reciprocatingly under the action of the driving device. The linked rake continuously punches air holes on the rice on the conveyor belt to increase the air permeability of the rice.

[0010] Preferably, the frame is rotatably connected to a second rotating shaft located below the transfer belt, the second rotating shaft is keyed to a driven wheel, the rotating shaft is keyed to a driving wheel, and the driven wheel and the driving wheel are connected by a belt; the frame is connected to brackets on both sides, a crossbeam is connected between the brackets, the slide bar passes through the crossbeam and is connected to a connecting piece, the connecting piece is connected to a guide rod, and the guide rod passes through the bracket; the second rotating shaft is connected to a turntable, and the edge of the turntable is rotatably connected to the guide rod through a connecting rod. The independent source is not independently set, and the lifting and lowering of the sparse rake is controlled by linkage using the power of the first motor.

[0011] Preferably, a second motor is connected to both sides of the frame, and a scraper is connected to the output shaft of the second motor. The edge of the scraper just contacts the transfer belt during rotation, and the speed of the second motor is controlled so that the linear speed of the scraper edge is greater than the transmission speed of the transfer belt. The rotating scraper causes the rice to fall into the heat preservation cylinder step by step, further loosening it.

[0012] Preferably, cylinders are connected to both sides of the frame, and partitions are connected to the output of the cylinders. The friction between the partitions and the conveyor belt has a scraping effect on the conveyor belt, and the transfer and replacement of the heat preservation cylinder can be completed within the time period when the rice reaches the scraper wheel by controlling the partitions.

[0013] Beneficial effects: Compared with the prior art, the present invention sets a lower transfer belt and scraper on the conveyor belt side, so that the rice out of the pot can be completely transferred to the transfer belt, and during the transfer process, the rice adhering to the conveyor belt is scraped off by the scraper, and the rice is loosened due to turning and falling, and the rice with low viscosity is spread on the transfer belt. At the same time, an air nozzle is set at the connection between the conveyor belt and the transfer belt to blow air to cool the spread rice and disperse the diffused steam. A vibration mechanism is also set on the frame, which increases the looseness of the rice through continuous vibration, and increases the air permeability of the rice through reciprocating rakes. Finally, the rice is dropped more loosely into the insulation cylinder through the rotating wheel, and the insulation cylinder is replaced in conjunction with the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 : A schematic structural diagram of an auxiliary unloading device for a steam rice conveyor belt of the present invention;

[0015] Figure 2 : Schematic diagram of the rack structure;

[0016] Figure 3 : Another structural diagram of the rack;

[0017] In the figure: conveyor belt 1, frame 2, frame body 3, transfer belt 4, scraper 5, air nozzle 6, rotating shaft 7, first motor 8, cam 9, hanging arm 10, column shaft 11, rotating rod 12, vibration plate 13, torsion spring 14, rake 15, slide bar 16, second rotating shaft 17, driven wheel 18, driving wheel 19, belt 20, bracket 21, cross beam 22, connecting piece 23, guide rod 24, turntable 25, connecting rod 26, scraper wheel 27, second motor 28, cylinder 29, partition 30. DETAILED DESCRIPTION

[0018] Next, combine with Figure 1-3 A specific embodiment of the present invention is described in detail.

[0019] An auxiliary unloading device for a steam rice conveyor belt includes a frame 2 located at the unloading side of a conveyor belt 1, the frame 2 can be directly connected to a frame body 3 on the side of the conveyor belt 1, and a transfer belt 4 is provided on the frame 2. The transfer belt 4 has the same function as the conveyor belt 1, and both transfer rice to the front end. A scraper 5 is connected to the side of the frame 2 close to the conveyor belt 1, and the edge of the scraper 5 is attached to the conveyor belt 1. When the conveyor belt 1 transfers the rice just out of the pot to the end and leaves the conveyor belt, the rice slides down to the transfer belt 4 below under the action of inertia and gravity, and the rice adhering to the conveyor belt is separated from the conveyor belt under the action of the scraper 5, and finally falls on the transfer belt 4 through the scraper 5.

[0020] When the rice is taken out of the pot, it first falls directly onto the conveyor belt 1. When it is taken out of the pot, the temperature and steam content are the highest. The bottom layer of rice in contact with the conveyor belt has the highest viscosity. At the same time, the pressure of the rice drops and it adheres to the conveyor belt, while the top layer of rice exposed outside cools down quickly and its viscosity decreases. When passing through the scraper 5, under the action of inertia and the scraper 5, the rice ball will fall onto the conveyor belt in an overturned state. The bottom layer of rice adhering to the conveyor belt will not be in direct contact with the conveyor belt after being scraped off by the scraper 5. The rice contacting the conveyor belt comes from the outer layer of the rice on the conveyor belt with low viscosity, which reduces the probability of the rice sticking to the conveyor belt.

[0021] When the rice from the conveyor belt 1 turns over and falls on the transfer belt 4, the collision causes the rice to become looser. When the rice falls on the conveyor belt, the upper layer does not directly contact the conveyor belt. The bottom layer of rice in contact with the conveyor belt moves forward under the action of the conveyor belt, and the upper layer of rice collapses due to inertia. In this way, the thickness of the rice on the conveyor belt is more uniform than that on the conveyor belt, which increases the looseness and thus enhances the heat dissipation, avoiding the accumulation of residual heat inside the rice and the resulting adhesion between the rice grains.

[0022] It can be seen that when the rice falls on the conveyor belt 4 from the conveyor belt 1, the spreading area increases, the rice becomes looser, and the temperature of the rice is also the highest. In order to accelerate the volatilization of the residual heat of the rice, the present embodiment is provided with an air nozzle 6 at the connection of the conveyor belt 4, and the air nozzle 6 blows air toward the scraper 5 to take away the high-temperature steam. That is, at the connection of the scraper 5, the spreading area of ​​the rice is increased, and the steam is blown away when the temperature of the rice is high, which is most efficient and avoids the increase in the viscosity of the rice after the steam is liquefied.

[0023] In practice, when the rice falls on the conveyor belt 1 after being taken out of the pot, it presents a shape with a high center and a low side, and there are also clumping rice. In order to further increase the looseness of the rice, this embodiment is also provided with a vibration mechanism on the frame 2, and the conveyor belt 1 is intermittently hit with a small amplitude through the vibration mechanism, so that the conveyor belt vibrates with a small amplitude, and then the accumulated rice is shaken and dispersed. Specifically, a rotating shaft 7 located below the transfer belt 4 is rotatably provided on the frame 2, and a first motor 8 is also fixed on one side of the frame 2, and the rotating shaft 7 is connected to the rotating output shaft of the first motor 8; a cam 9 is key-connected on the rotating shaft 7, and the cam 9 rotates synchronously with the rotating shaft 7; a column shaft 11 is also connected to both sides of the frame 2 through a suspension arm 10, and a rotating rod 12 is rotatably connected to the column shaft 11, one end of the rotating rod 12 is connected to a vibration plate 13, and the other end contacts the surface of the cam 9, and a torsion spring 14 sleeved outside the column shaft 11 is provided at the connection between the rotating rod 12 and the column shaft 11.

[0024] In the working state, the motor 8 starts to drive the rotating shaft 7 to rotate, and then the key-connected cam 9 also rotates with the rotating shaft. Under the action of the torsion spring, the non-vibrating end (the end close to the cam) of the rotating rod 12 is always pressed against the surface of the cam 9. In the process of the rotation of the cam 9 with the rotating shaft 7, when the distance between its contour surface and the axis of the rotating shaft 7 increases, the rotating rod 12 is gradually pressed upward, forcing the rotating rod 12 to rotate, and the vibrating end of the rotating rod 12, i.e. the vibration plate 13, is out of contact with the conveyor belt 1; when the cam 9 rotates to the point where the distance between its contour surface and the axis of the rotating shaft 7 is the maximum, the cam 9 passes over the rotating rod 12 and is out of contact with it, and the rotating rod 12 is reset under the action of the elastic force of the torsion spring, driving the vibration plate 13 to hit the bottom of the conveyor belt and stop, thereby achieving the effect of reciprocating vibration of the conveyor belt.

[0025] Under the dual effects of mechanical vibration of the vibration mechanism and the impact of rice falling at the junction of the conveyor belt and the transfer belt, the looseness of the rice is improved. In this embodiment, a raking mechanism is further provided to further increase the looseness of the rice. The raking mechanism includes a raking 15, which is connected to a slide bar 16. The slide bar 16 is reciprocated and lifted under the action of the driving device. The linkage raking 15 continuously punches air holes on the rice on the transfer belt 4, accelerates the heat dissipation of the residual heat inside the rice, and further reduces the stickiness of the rice.

[0026] This embodiment does not independently set a power source for driving the slide bar 16 to rise and fall. Specifically: the frame 2 is also rotatably connected to a second shaft 17 located below the transfer belt on both sides, the second shaft 17 is keyed to a driven wheel 18, the shaft 7 is keyed to a driving wheel 19, and the driven wheel 18 and the driving wheel 19 are connected by a belt 20; the frame 2 is connected to brackets 21 on both sides, and a crossbeam 22 is connected between the brackets 21. The slide bar 16 passes through the crossbeam 22 and is connected to a connecting piece 23. The connecting piece 23 is connected to a guide rod 24, and the guide rod 24 passes through the bracket 21; a turntable 25 is connected to the second shaft 17, and the edge of the turntable 25 is rotatably connected to the guide rod 24 through a connecting rod 26.

[0027] When the motor 8 starts to drive the rotating shaft 7 to rotate, the driving wheel 19 connected to the key on it drives the driven wheel 18 to rotate, and the second rotating shaft 17 causes the turntable 25 to rotate. The rotating turntable 25 is linked to the guide rod 24 through the connecting rod 26, and the guide rod 24 is vertically lifted and lowered under the guidance of the bracket 21, thereby controlling the vertical reciprocating lifting and lowering movement of the rake 15. The movement of the rake 15 can, on the one hand, make air holes in the rice layer, and on the other hand, collide with the clumped rice to loosen it.

[0028] The loose rice after the raking 15 moves with the conveyor belt 4 and is collected by the insulation cylinder. As mentioned above, the probability of the rice on the conveyor belt sticking to the conveyor belt is greatly reduced under the action of the scraper 5, the air nozzle and the raking. In this embodiment, a rotating scraper 27 is set at the unloading end of the conveyor belt 4 to scrape the rice sticking to the conveyor belt section by section and push it into the insulation cylinder, so that it falls into the insulation cylinder more loosely. The specific scheme is as follows: a second motor 28 is connected to both sides of the frame 2, and the scraper 27 is connected to the output shaft of the second motor 28. The edge of the scraper 27 just contacts the conveyor belt 4 during the rotation process, and the speed control of the second motor 28 makes the linear speed of the edge of the scraper 27 greater than the transmission speed of the conveyor belt 4.

[0029] When the rice moves along the conveyor belt to the unloading edge, it is pushed away from the conveyor belt section by section by the rotating scraper wheel 27 and falls into the insulation cylinder, further loosening the rice. At the same time, the edge of the scraper wheel 27 blades acts on the conveyor belt intermittently, further reducing the probability of rice adhering to the recycled conveyor belt.

[0030] Normally, the conveyor belt 1 and the transfer belt 4 are both continuously rotating, and the insulation cylinder needs to be replaced after it is full. During the replacement period, the rice on the transfer belt needs to be partitioned. Based on this, in this embodiment, cylinders 29 are connected to both sides of the frame 2, and a partition 30 is connected to the output of the cylinder 29. When the insulation cylinder is almost full, the cylinder 29 acts to pull the partition 30 down and press it on the transfer belt 4. At this time, the rice will be blocked by the partition. At this time, the friction between the partition and the transfer belt also has a scraping effect on the transfer belt. The rice between the partition 30 and the scraper 27 continues to move with the transfer belt until it is pushed into the insulation cylinder by the scraper 27. At this time, the cylinder 29 is triggered to pull up the partition 30, and the transfer and replacement of the insulation cylinder can be completed during the time when the rice reaches the scraper 27.

[0031] In the present invention, a transfer belt and a scraper are provided at a lower position on the conveyor belt side, so that the rice out of the pot can be completely transferred to the transfer belt, and during the transfer process, the rice adhering to the conveyor belt is scraped off by the scraper, and the rice is loosened due to turning and falling, and the rice with low viscosity is spread on the transfer belt. At the same time, an air nozzle is provided at the junction of the conveyor belt and the transfer belt to blow air to cool the spread rice and disperse the diffused steam. A vibration mechanism is also provided on the frame, which increases the looseness of the rice through continuous vibration, and increases the air permeability of the rice through a reciprocating lifting rake, and finally the rice is dropped more loosely into the insulation cylinder through the rotating wheel, and the insulation cylinder is replaced in conjunction with the partition.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary unloading device for a steam rice conveyor belt, comprising a frame (2) arranged at the discharge end of the conveyor belt, a transfer belt (4) being arranged on the frame, characterized in that: The frame (2) is located below the conveyor belt, and a scraper (5) is connected to one side of the frame (2) close to the conveyor belt (1), and the edge of the scraper (5) is in contact with the conveyor belt (1).

2. The auxiliary unloading device for steam rice conveyor belt according to claim 1, characterized in that: The frame (2) is provided with a vibration mechanism, comprising a rotating shaft (7) rotatably arranged on the frame (2) and located below the conveyor belt (4); a first motor (8) is fixed on one side of the frame (2), and the rotating shaft (7) is connected to the output shaft of the first motor (8); a cam (9) is keyed on the rotating shaft (7); both sides of the frame (2) are also connected to a column shaft (11) through a suspension arm (10), and a rotating rod (12) is rotatably connected to the column shaft (11), one end of the rotating rod (12) is connected to a vibration plate (13), and the other end contacts the surface of the cam (9), and a torsion spring (14) sleeved outside the column shaft (11) is provided at the connection between the rotating rod (12) and the column shaft (11).

3. The auxiliary unloading device for steam rice conveyor belt according to claim 2, characterized in that: An air nozzle (6) is arranged above the transfer belt (4), and the air nozzle (6) blows air in the direction of the scraper (5).

4. The auxiliary unloading device for steam rice conveyor belt according to claim 3, characterized in that: A rake (15) is suspended on the conveyor belt (4), and the rake (15) is connected to a slide bar (16), and the slide bar (16) is controlled to reciprocate and rise and fall.

5. The auxiliary unloading device for steam rice conveyor belt according to claim 4, characterized in that: The frame (2) is rotatably connected to a second rotating shaft (17) located below the transfer belt on both sides, the second rotating shaft (17) is key-connected to a driven wheel (18), the rotating shaft (7) is key-connected to a driving wheel (19), and the driven wheel (18) and the driving wheel (19) are connected via a belt (20); the frame (2) is connected to brackets (21) on both sides, a crossbeam (22) is connected between the brackets (21), the sliding rod (16) passes through the crossbeam (22) and is connected to a connecting piece (23), the connecting piece (23) is connected to a guide rod (24), and the guide rod (24) passes through the bracket (21); a rotating disk (25) is connected to the second rotating shaft (17), and the edge of the rotating disk (25) is rotatably connected to the guide rod (24) via a connecting rod (26).

6. The auxiliary unloading device for steam rice conveyor belt according to claim 5, characterized in that: A second motor (28) is connected to both sides of the frame (2), and a scraper wheel (27) is connected to an output shaft of the second motor (28). The edge of the scraper wheel (27) just contacts the transfer belt (4) during rotation, and the rotation speed of the second motor (28) is controlled so that the linear speed of the edge of the scraper wheel (27) is greater than the transmission speed of the transfer belt (4).

7. The auxiliary unloading device for steam rice conveyor belt according to claim 6, characterized in that: The frame (2) is connected to cylinders (29) on both sides, and the output of the cylinder (29) is connected to a partition (30).

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