Suction type specific gravity stoner

Abstract

The utility model provides a suction type specific gravity stoner. The suction type specific gravity stoner comprises a supporting seat and a machine body arranged on the supporting seat, the machine body comprises a feed port and a discharge port, a dust collector is arranged above the feed port, and a buffer plate is arranged in the feed port; a sieve plate is arranged below the buffer plate and leads to the discharge hole; the sieve plate is movably connected to the wall of the machine body, and an adjusting mechanism is arranged below the sieve plate; the exterior of the motor is totally closed, the motor controls movement of the sieve plate through an adjusting mechanism, and a refrigerating system is further arranged outside the motor. A material residue box is arranged below the sieve plate; the machine body is further provided with an air bellow connected with the machine body through an air supply pipe. According to the utility model, the motor originally arranged in the machine body is moved outside the machine body, the dust collector at the feed port and the refrigerating system at the motor are additionally arranged, and the motor is arranged in the closed space, so that the problem of short service life caused by dust suction and heating in the working process of the motor is solved, and the service life of the motor can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of stone removal machines, in particular to a suction-type specific gravity stone removal machine. Background Art

[0002] Nowadays, food processing plants often store millet or other grains during the initial processing of raw grains. Stones are often mixed in the millet or other grains when they are stored. Therefore, in order to improve the quality of millet products after later processing, it is necessary to remove the stone impurities in the millet first. According to the different air usage methods, gravity stone removers are mainly divided into several categories, such as suction type, blowing type and circulating air type.

[0003] In common production processes, suction-type gravity stoners are generally used. However, the internal motor of existing suction-type gravity stoners is prone to heat up when working. Since the motor continues to work in a high-temperature and high-dust environment, its service life is short and it needs to be replaced frequently, which is not conducive to production. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a suction-type specific gravity stone removing machine, which can effectively increase the service life of the motor and reduce the inefficient production caused by frequent replacement of the motor.

[0005] The utility model discloses a suction-type specific gravity stone removal machine, comprising a support seat, a machine body arranged on the support seat; the machine body comprises a feed port and a discharge port, a vacuum cleaner is arranged above the feed port, and a buffer plate is arranged inside the feed port; a screen plate is arranged below the buffer plate, and the screen plate leads to the discharge port, so that grain can slowly fall onto the screen plate, which is convenient for screening. The screen plate is movably connected to the machine body wall, and a cam mechanism connected by a connecting rod is arranged below the screen plate; the motor is fully enclosed outside, and a refrigeration system is also arranged. When the refrigeration system is working, cold air is transported to the location of the motor to cool the motor and avoid damage caused by overheating of the motor. Since the motor is sealed, there will be no dust. A slag box is arranged below the sieve plate, which can allow fallen stones to enter the slag box. A vent is also arranged below the discharge port, and a filter is installed at the vent to reduce dust in the machine body. A wind shield is also arranged at the discharge port to reduce the wind entering the discharge port, and the wind shield is made of lighter material to facilitate discharge.

[0006] The machine body is also provided with a bellows connected to the machine body through an air supply pipe, and a negative pressure fan connected to the air supply pipe is provided inside the bellows.

[0007] The adjusting mechanism is a cam mechanism, which includes a groove arranged on the cam mechanism, a fixing rod fixed on the machine body, a rotating shaft connected to the motor, a fixing block installed on the connecting rod, and a slider connected to the fixing block. The slider is installed on the fixing rod; the fixing block can move on the groove following the movement of the slider according to the rotation of the cam mechanism.

[0008] The sieve plate is made of polyurethane composite material, and can be made of narrow sieve bars, high opening rate, sound absorption, not easy to run coarse, and can be applied to different grain crops. There are many sieve holes arranged in a matrix on its surface. The sieve plate is connected to the machine body through a spring, and the spring is set with a certain length so that the sieve plate can move. When the spring recovers after deformation, vibration will be generated, making the sieve plate more efficient.

[0009] The refrigeration system includes a group of evaporators aligned with the motor, one end of evaporator one is connected to the compressor and the other end is connected to the expansion valve, one end of evaporator two is connected to the expansion valve and the other end is connected to the drying filter; one end of the condenser is connected to the drying filter and the other end is connected to the compressor. The evaporator is directly opposite to the motor to reduce the temperature of the motor and prevent the motor from overheating.

[0010] The slag box is configured as a pull-out structure, which is convenient for manual cleaning.

[0011] A lockable universal roller is installed below the support seat to enable the entire mechanism to move.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when in use, the negative pressure fan, the vacuum cleaner, the refrigeration system and the motor are started, and the grains are added into the feed pipe. When the grains fall on the buffer plate, the vacuum cleaner processes the dust mixed in the grains, thus solving the problem of the motor inhaling dust during operation. After processing, the dust falls on the sieve plate through the buffer plate. When the sieve plate moves through the adjusting mechanism, the negative pressure fan draws air upward through the air supply pipe, and the vents supply air into the machine body, thus forming a bottom-up wind. The grains with small specific gravity are blown away by the air flow. It floats to the upper layer and slides down to the discharge port under the push of gravity, inertia and continuous feeding. The heavy stones stick to the screen plate during the regular movement and slide upward under the alternating action of friction and inertia of the screen plate until they fall into the slag box. This can effectively remove the stones in the grain. In addition, the operation of the refrigeration system can effectively help the motor cool down during use. The motor is located in a closed space, which isolates it from dust, thereby extending the service life of the motor and avoiding the waste of time and efficiency problems such as equipment debugging caused by too many replacements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0014] Figure 2 Schematic diagram of the internal structure of the bellows.

[0015] Figure 3 Schematic diagram of the structure and refrigeration path of the refrigeration system.

[0016] Figure 4 for Figure 1 Schematic diagram of the local enlarged structure of part A.

[0017] Figure 5 Schematic diagram of the connection mechanism between the motor and the cam.

[0018] Figure 6 for Figure 4 Schematic diagram of another position of the middle slider.

[0019] In the above drawings: 1. support base; 2. bellows; 201. air supply pipe; 202. negative pressure fan; 203. vent; 3. vacuum cleaner; 4. discharge port; 5. feed port; 6. buffer mechanism; 7. stone removal screen plate; 8. refrigeration system; 801. compressor; 802. condenser; 803. drying filter; 804. evaporator one; 805. expansion valve; 806. evaporator two 9. connecting rod; 10. cam mechanism; 101. rotating shaft; 11. slag box; 12. motor; 13. fixing rod; 14. fixing block; 15. groove; 16. slider. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] 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", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] The utility model embodiment provides a suction type specific gravity stone removing machine, such as Figure 1 As shown, it includes a machine body arranged on a support base 1, and a lockable universal roller is installed below the support base 1 to facilitate the overall movement and can be adjusted in special circumstances.

[0023] The machine body is provided with a feed port 5 and a discharge port 4. A vacuum cleaner 3 is provided above the feed port 5. A buffer plate 6 is provided inside the feed port 5 to slow down the feeding speed and maximize the effect of the vacuum cleaner 3. A sieve plate 7 is provided below the buffer plate 6, and the sieve plate 7 leads to the discharge port 4. A vent 203 is also provided below the discharge port 4, and a filter screen is installed at the vent 203. A windshield is also provided at the discharge port 4 to reduce the wind entering the discharge port 4, and the windshield is made of a lighter material, such as plastic, so that the grain can be discharged smoothly.

[0024] The motor 12 on the support base 1 is provided with a refrigeration system 8 outside. Figure 3As shown, it includes a compressor 801 and a condenser 802. The refrigerant used in the compressor 801 is propane, i.e., R290 refrigerant. It does not damage the ozone layer during use and has no effect on the greenhouse effect. It is a new type of environmentally friendly refrigerant. The refrigeration system 8 includes a group of evaporators aligned with the motor 12. One end of the evaporator 1 804 is connected to the compressor 801, and the other end is an expansion valve 805. One end of the evaporator 2 806 is connected to the expansion valve 805, and the other end is connected to the drying filter 803. One end of the condenser 802 is connected to the drying filter 803, and the other end is connected to the compressor 801. The refrigerant circulates repeatedly in the refrigeration pipeline, and after certain steps, it continuously changes from liquid to gas, and then from gas to liquid, and refrigerates continuously. The compressor 801 and the condenser 802 are installed outside the enclosed space of the motor 12. During the operation, the compressor 801 first compresses the refrigerant, and releases heat and cools it in the condenser 802. After the water vapor is removed by the drying filter 803, it enters the evaporator 2 806 to increase its temperature. When entering the expansion valve 805, it expands and increases its temperature, and continues to absorb heat in the evaporator 1 804 to reduce the ambient temperature.

[0025] When the refrigeration system 8 is working, cold air is transported to the location of the motor 12 to cool the motor 12 and avoid damage caused by overheating of the motor 12. The refrigeration system 8 is arranged outside the motor, and the motor is sealed to prevent dust in the external environment from entering the motor.

[0026] The sieve plate 7 is made of polyurethane composite material, and narrow sieve bars can be selected, with high opening rate, sound absorption, and not easy to run rough. It can be applied to different grain crops, and the high opening rate can ensure the ventilation of the sieve plate 7. Under the action of the air supply pipe 201 and the vent 203, an airflow from bottom to top is generated, and the wind shield provided at the discharge port 4 can make the airflow pass through the sieve plate 7 from bottom to top, so that the grain on the sieve plate 7 is easier to be separated from the stone. There are many sieve holes arranged in a matrix on the surface of the sieve plate 7, and the sieve plate 7 is movably connected to the body through a spring. The reserved length is enough for the sieve plate 7 to move through the adjustment mechanism provided below the sieve plate 7, and there will be vibration during the spring deformation rebound process, which drives the sieve plate 7 to vibrate, and can improve the working efficiency of the sieve plate.

[0027] An adjusting mechanism is arranged below the sieve plate 7, such as Figure 4 The cam mechanism 10 includes a groove 15 provided on the cam, a fixing rod 13 fixing the cam to the machine body, a connecting rod 9 connecting and adjusting the screen plate 7, a fixing block 14 installed on the connecting rod 9, and a slider 16 connected to the fixing block 14. The length of the connecting rod 9 is adjustable, and the length of the connecting rod 9 is changed by changing the position fixed to the fixing block 14, thereby changing the angle of the screen plate 7, so as to achieve the effect of removing stones for various grains.

[0028] The slider 16 is installed on the fixed rod 13; the fixed block 14 is fixedly connected to the slider 16, so when the cam rotates, the movable connection part between the fixed block 14 and the groove 15 is snap-fitted into the groove 15 and moves. Since the distances from the groove 15 to the rotating shaft 101 are different, the fixed block 14 can drive the slider 16 to translate on the fixed rod 13, driving the sieve plate 7 to move left and right. Since the sieve plate 7 has a certain angle, and an air flow from bottom to top is formed under the action of the air supply pipe 201 sucking air upward and the vent 203 supplying air to the inside of the machine body, the lighter grain floats to the top of the sieve plate 7 and moves downward along the sieve plate 7. When the sieve plate 7 moves upward, the axial distance changes greatly and the movement speed is faster. After reaching the end value, the sieve plate 7 is immediately driven to move downward, and the stones fall from the higher end of the sieve plate 7 under the action of inertia.

[0029] like Figure 5 As shown, the rotating shaft 101 of the cam mechanism 10 is connected to the motor 12 via a belt. Figure 6 As shown in the figure, this figure shows the state when the cam moves to the other end point.

[0030] A slag box 11 is provided below the cam mechanism 10, and the slag box 11 is provided as a pull-out structure, so as to facilitate manual cleaning of fallen stones.

[0031] like Figure 2 As shown, a bellows 2 is also provided on the machine body and connected to the suction-type specific gravity stone remover through an air supply pipe 201. A negative pressure fan 202 connected to the air supply pipe 201 is provided inside the bellows 2. The negative pressure fan 202 sucks out the gas above the sieve plate 7 inside the machine body through the air supply pipe 201, and the vent 203 transports the external gas into the machine body, forming a vertical upward air flow, so that the light-gravity grain suspended in the upper layer moves downward along the inclination direction of the sieve plate 7, and the heavy-gravity stones suspended in the lower layer move upward along the inclination direction of the sieve plate 7.

[0032] When in use, the negative pressure fan 202, the vacuum cleaner 3, the refrigeration system 8 and the motor 12 are started, and the grain is added into the feed pipe 5. When the grain falls on the buffer plate 6, the vacuum cleaner 3 processes the dust mixed in the grain, and after processing, the dust falls on the sieve plate 7 through the buffer plate 6. The sieve plate 7 moves through the cam mechanism 10 connected by the connecting rod. Due to the special setting of the cam mechanism 10, the sieve plate 7 moves faster when it moves upward and slower when it moves downward. The grain with a small specific gravity floats to the upper layer, and slides down to the discharge port 4 under the action of gravity, inertia, the airflow through the air supply pipe 201 and the continuous feeding. The stones with a large specific gravity will have a process of sudden stop and downward movement when the sieve plate 7 moves upward. Under the action of inertia, the stones fall into the slag box 11, which can well remove the stones in the grain. In addition, during the use of the motor 12, due to the operation of the refrigeration system 13, the motor 12 is effectively helped to cool down, and the motor 12 works in a confined space to reduce the influence of dust on the life of the motor 12, thereby achieving the purpose of increasing the service life of the motor.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A suction type specific gravity stone remover, characterized in that: The invention comprises a support base (1) and a machine body arranged on the support base (1); the machine body comprises a feed port (5) and a discharge port (4); a dust collector (3) is arranged above the feed port (5); a buffer plate (6) is arranged inside the feed port (5); a sieve plate (7) is arranged below the buffer plate (6), and the sieve plate (7) leads to the discharge port (4); the sieve plate (7) is movably connected to the machine body wall, and an adjustment mechanism is arranged below the sieve plate (7); the support base (1) A motor (12) is installed near the machine body, and the motor (12) can drive the sieve plate (7). The outside of the motor (12) is completely sealed, and a refrigeration system (8) is also provided at the motor (12); a slag box (11) is provided below the sieve plate (7); a bellows (2) is also provided on the machine body and connected to the machine body through an air supply pipe (201); a vent (203) is provided below the discharge port (4), and a wind shield is provided at the discharge port (4).

2. A suction-type specific gravity stone remover according to claim 1, characterized in that: The regulating mechanism is a cam mechanism (10), comprising a connecting rod (9) connecting the cam and the screen plate (7), a fixing block (14) mounted on the connecting rod (9) and a sliding block (16) connected to the fixing block (14), a fixing rod (13) fixing the cam on the machine body, a rotating shaft (101) connected to the motor (12), and a groove (15) arranged on the cam.

3. A suction-type specific gravity stone remover according to claim 2, characterized in that: The sliding block (16) is mounted on the fixing rod (13); the fixing block (14) is movably connected in the groove (15) of the cam.

4. A suction-type specific gravity stone remover according to claim 1 or 2, characterized in that: The motor (12) is connected to the rotating shaft (101) of the cam via a belt.

5. The suction type specific gravity stone remover according to claim 1, characterized in that: The surface of the sieve plate (7) has a plurality of sieve holes arranged in a matrix, and the sieve plate (7) can be movably connected to the machine body via a spring.

6. A suction-type specific gravity stone remover according to claim 1, characterized in that: The refrigeration system (8) comprises a compressor (801), a condenser (802), a drying filter (803) and a group of evaporators arranged outside the machine body and aligned with the motor (12); one end of evaporator one (804) is connected to the compressor (801) and the other end is connected to the expansion valve (805); one end of evaporator two (806) is connected to the expansion valve (805) and the other end is connected to the drying filter (803); one end of the condenser (802) is connected to the drying filter (803) and the other end is connected to the compressor (801), forming a closed loop.

7. A suction-type specific gravity stone remover according to claim 1, characterized in that: A negative pressure fan (202) connected to the air supply pipe (201) is arranged inside the wind box (2).

8. The suction-type specific gravity stone remover according to claim 1, characterized in that: The slag box (11) is configured as a drawable structure.

9. The suction-type specific gravity stone remover according to claim 1, characterized in that: A lockable universal roller is installed below the support seat (1).

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