A coffee fruit flotation machine

Abstract

The present invention provides a fresh coffee fruit flotation machine, comprising a frame, characterized in that a shell with a water material chamber and a material inlet is provided on the frame, a material elevator is provided in the water material chamber, the input end of the elevator is connected to the bottom of the water material chamber, and the output end is connected to the lower process equipment, and a drop hopper with an open top and a bottom connected to an external collection box through a material pipe is also provided in the water material chamber, and the open edge of the top of the drop hopper is adapted to the liquid level in the water material chamber, a push plate connected to a driving mechanism is provided above the water material chamber, and a drain rack and a reflux groove are provided below the output end of the material elevator. The problem of large waste of water resources and uneven feeding caused by unstable water supply pressure in traditional technology is solved, and water is drained and discharged through the drain rack and the through groove on the wall of the material lifting cylinder to improve the water recovery efficiency. The coffee fruit floating on the water surface and the shrunken fruit are pushed into the drop hopper by the push plate to improve the fruit selection efficiency.

Description

Technical Field

[0001] The invention relates to a flotation machine, in particular to a fresh coffee fruit flotation machine, and belongs to the technical field of mechanical design and manufacturing. Background Art

[0002] After picking, coffee berries need to be screened to separate floating berries, shrunken berries and high-quality berries, and then coffee berries of different qualities are sorted into different next-level processing procedures. Existing coffee berries are mainly screened manually. Due to the large number of coffee berries, manual screening is not only inefficient, but also increases manpower and cost investment for enterprises. At present, the coffee berry screening machines on the market mainly use water for flotation, and due to structural reasons, the consumption and waste of water resources are extremely serious. In addition, in order to save water, many companies using flotation machines must increase investment to build water circulation facilities, which adds unnecessary burdens to small and medium-sized enterprises. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0003] In order to solve the problems of low efficiency, time-consuming and labor-intensive, and serious waste of water resources caused by the existing manual screening of floating fruits and shriveled fruits and the like after the fresh coffee fruits are picked, the present invention provides a fresh coffee fruit flotation machine.

[0004] The present invention is completed through the following technical scheme: a fresh coffee fruit flotation machine includes a frame, characterized in that a shell with a water material chamber and a feed inlet is provided on the frame, a material elevator is provided in the water material chamber, the input end of the material elevator is connected to the bottom of the water material chamber, and the output end is connected to the lower process equipment, a drop hopper with an open top and a bottom connected to an external collection box through a material pipe is also provided in the water material chamber, and the open edge of the top of the drop hopper is adapted to the liquid level in the water material chamber, a push plate connected to a driving mechanism is provided above the water material chamber, and a drain rack and a reflux trough are provided below the output end of the material elevator, so that after the fresh coffee fruit enters the water material chamber filled with water from the feed inlet, under the buoyancy of the water, the heavier high-quality fruit sinks to the bottom and enters the material elevator to be sent to the lower process, and the lighter floating coffee fruit and shriveled fruit are sent to the drop hopper under the push of the push plate, and are transported to the external collection box through the material pipe to complete the flotation of the coffee.

[0005] The shell is configured as an inverted right-angled trapezoidal body with a large top and a small bottom and an outer side plate configured as an inclined plate. The water-material chamber is configured as an inverted right-angled trapezoidal chamber adapted to the shape of the shell. The top of the water-material chamber is configured as an open opening. The feed inlet is configured at the open top of the water-material chamber and is located on the side of the inclined plate, so that high-quality fruits can be guided by the inclined plate to quickly sink and gather at the bottom of the water-material chamber, making it easier for them to enter the material elevator.

[0006] The material elevator is configured as a screw conveyor, which is vertically arranged in the water material cavity on the vertical plate side of the shell, and includes a vertical cylinder with an inlet at the bottom and an outlet on the top side wall, a vertical rotating shaft with spiral blades arranged in the vertical cylinder, the bottom end of the vertical rotating shaft is matched with a bearing with a seat arranged at the bottom of the shell, and the top end extends upward out of the top of the shell and is connected to the main shaft of the power machine arranged at the top of the shell. The bottom inlet of the vertical cylinder is located at the bottom of the water material cavity, and the top outlet is located on one side of the top of the shell, so that the high-quality fruit that sinks to the bottom of the water material cavity under the guidance of the inclined plate can be lifted and transported by the material elevator and discharged from the outlet.

[0007] The material elevators are arranged in two parallel and spaced apart, both of which are arranged in the water-material cavity. A plurality of vertical through grooves are arranged at intervals on the upper part of the vertical cylinder wall of the material elevator so as to drain water through the vertical through grooves.

[0008] The drop hopper is set to be funnel-shaped with a large top opening and a small bottom outlet, the top width of which is consistent with the internal width of the water material chamber, the top opening edge height is lower than the shell top height, the upper end of the material pipe is connected with the bottom outlet of the drop hopper, and the lower end extends vertically downward out of the shell and is connected with the collecting box, the drop hopper and the material pipe are located in front of the material elevator and behind the inclined plate of the shell, and the top opening front edge is set as a transition plate inclined backward and upward, and a triangular diverter plate is provided at the angle between the material pipe and the inclined plate of the shell, so that floating coffee fruits and shriveled fruits enter from the top opening of the drop hopper and are then transported to the collecting box through the material pipe. The setting of the transition plate facilitates the floating coffee fruits to enter the drop hopper over the open front edge of the drop hopper, and the triangular diverter plate prevents the sinking high-quality coffee fruits from accumulating between the inclined plate and the pipeline.

[0009] The drain rack is arranged below the material elevator discharge port, the upper end of the drain rack is connected to the lower edge of the discharge port, the lower end is connected to the upper end of the downwardly inclined conveying ramp, and the lower end of the conveying ramp is matched with the lower process equipment; the drain rack includes a drain plate with a plurality of long through grooves arranged along the conveying direction, and side baffles arranged on both sides of the drain plate, the long through grooves are evenly spaced from the upper end to the lower end of the drain plate, and are used to filter the water in the lifted coffee.

[0010] The reflux trough is arranged below the drain rack, which is an inclined trough body, the high end of the reflux trough is connected to the low end of the drain plate of the drain rack, and the low end is connected to the water material chamber, and a horizontal filter plate matched with the low end of the reflux trough is arranged in the water material chamber, the outer end of the horizontal filter plate is fixed on the shell, and a vertical baffle is arranged at the inner end; so that the water drained from the drain plate can be returned to the water material chamber through the reflux trough for continued use to avoid wasting water resources, and at the same time, impurities can be prevented from entering the water material chamber through the horizontal filter plate and the vertical baffle.

[0011] The push plate is transversely arranged at the upper part of the water material chamber, and is set as a vertical long strip whose width is adapted to the inner width of the water material chamber. The driving mechanism includes two horizontal rotating shafts spaced apart and transversely arranged at the upper part of the water material chamber. The two ends of each horizontal rotating shaft are rotatably connected with the bearing seat arranged on the side wall of the shell. Two sprockets spaced apart are respectively sleeved on the two horizontal rotating shafts, and a chain is sleeved between the sprockets on the same side. The two ends of the push plate are respectively fixed on the corresponding chains, and one end of one of the horizontal rotating shafts extends outward from the side wall of the shell and is connected to the output shaft of an external reducer. The input shaft of the reducer is connected to the main shaft of the second power machine, so that under the drive of the second power machine, the chain is driven to rotate through the reducer and the horizontal rotating shaft, and then the push plate is driven to move, so as to push the floating coffee fruits into the drop hopper and send them to the lower process equipment through the material pipe.

[0012] A protective cover is arranged above the push plate and its driving mechanism. The protective cover is arranged on the top opening of the water material chamber, and an observation window is arranged on the protective cover.

[0013] The present invention has the following advantages and effects: By adopting the above scheme, the device can distinguish the high-quality coffee fruits from the floating fruits and the shriveled fruits, and send them to different conveying channels to the next process. It uses a screw conveyor to convey the high-quality fruits that sink to the bottom, solving the problem of water resource waste caused by the traditional method, and the drain rack and the grooves on the conveyor shell are used to drain water, thereby improving the water recovery efficiency. In addition, the floating fruits and shriveled fruits floating on the water surface are pushed into the drop hopper by the push plate, which improves the screening efficiency and ensures the normal and continuous production. It is indeed an ideal flotation machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the present invention;

[0015] Figure 2 for Figure 1 AA view of the . DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] The coffee fruit flotation machine provided by the present invention comprises a frame, a housing 2 having a water material chamber 1 therein and a material inlet 3 thereon is provided on the frame, a material elevator 20 having an input end connected to the bottom of the material chamber 1 and an output end connected to a lower process device is provided in the water material chamber 1, a drop hopper 18 having an opening 28 at the top and a bottom connected to an external collecting box through a material pipe 19 is also provided in the water material chamber 1, and the edge of the opening 28 at the top of the drop hopper 18 is adapted to the liquid level in the water material chamber 1, a drain rack 14 and a reflux trough 15 are provided below the output end of the material elevator 20, and a push plate 8 connected to a driving mechanism is provided above the water material chamber 1;

[0018] The shell 2 is configured as an inverted right-angled trapezoidal body with a large top and a small bottom and an outer plate configured as an inclined plate. The water-material chamber 1 is configured as an inverted right-angled trapezoidal chamber adapted to the shape of the shell 2. The top of the water-material chamber 1 is configured as an open opening. The feed inlet 3 is configured at the open top of the water-material chamber 1 and is located on the side of the inclined plate.

[0019] The material elevator 20 is configured as a screw conveyor, which is vertically arranged in the water material chamber 1 on the vertical plate side of the shell 2, and includes a vertical cylinder 21 with a feed inlet 24 at the bottom and a discharge port 12 on the top side wall, and a vertical rotating shaft 23 with spiral blades 22 arranged in the vertical cylinder 21, the bottom end of the vertical rotating shaft 23 is matched with a seat bearing 25 arranged at the bottom of the shell 2, and the top end extends upward from the top of the shell 2 and is connected to the main shaft of the first power machine 11 arranged at the top of the shell 2. The feed inlet 24 at the bottom of the vertical cylinder 21 is located at the bottom of the water material chamber 1, and the top discharge port 12 is located on one side of the top of the shell 2. The material elevator 20 is configured as two parallel and spaced units, both of which are arranged in the water material chamber 1. A plurality of vertical through grooves 31 are spaced apart on the upper part of the wall of the vertical cylinder 21 of the material elevator 20, which are used to filter the water in the lifted coffee;

[0020] The hopper 18 is designed to be a funnel with a large top opening 28 and a small bottom outlet 27. The top width is consistent with the internal width of the water material chamber 1. The edge height of the top opening 28 is lower than the top height of the shell 2. The upper end of the material pipe 19 is connected to the bottom outlet 27 of the hopper 18, and the lower end extends vertically downward out of the shell 2 and is connected to the collection box. The hopper 18 and the material pipe 19 are located in front of the material hoist 20 and behind the inclined plate of the shell 2. The front edge of the top opening 28 is set as a transition plate 9 inclined backward and upward. A triangular diverter plate 26 is provided at the angle between the material pipe 19 and the inclined plate of the shell 2.

[0021] The drain rack 14 is arranged below the discharge port 12 of the material elevator 20, the upper end of the drain rack 14 is connected to the lower edge of the discharge port 12, and the lower end is connected to the upper end of the downwardly inclined conveying ramp 16, and the lower end of the conveying ramp 16 is matched with the lower process equipment; the drain rack 14 includes a drain plate with a plurality of long through grooves 32 arranged along the conveying direction, and side baffles 13 arranged on both sides of the drain plate, and the long through grooves 32 are evenly spaced from the upper end to the lower end of the drain plate, and are used to filter the water in the lifted coffee;

[0022] The reflux trough 15 is arranged below the drain rack 14, and is an inclined trough body. The high end of the reflux trough 15 is connected to the low end of the drain plate of the drain rack 14, and the low end is connected to the water material chamber 1. A horizontal filter plate 17 matched with the low end of the reflux trough 15 is arranged in the water material chamber 1. The outer end of the horizontal filter plate 17 is fixed on the shell 2, and the inner end is provided with a vertical baffle 10.

[0023] The push plate 8 is transversely arranged at the upper part of the water material chamber 1, and is set as a vertical long strip whose width is adapted to the inner width of the water material chamber 1. The driving mechanism includes two horizontal rotating shafts 30 which are spaced apart and transversely arranged at the upper part of the water material chamber 1. The two ends of each horizontal rotating shaft 30 are rotatably connected with the seat bearing 29 arranged on the side wall of the shell 2. Two sprocket wheels 4 are sleeved on the two horizontal rotating shafts 30 respectively. A chain 7 is sleeved between the sprocket wheels 4 on the same side. The two ends of the push plate 8 are respectively fixed on the corresponding chain 7. One end of one of the horizontal rotating shafts 30 extends outward from the side wall of the shell 2 and is connected to the output shaft of an external reducer 34. The input shaft of the reducer 34 is connected to the main shaft of the second power machine 33, so that under the drive of the second power machine 33, the chain 7 is driven to rotate through the reducer 34 and the horizontal rotating shaft 30, and then the push plate 8 is driven to move, so that the floating coffee fruit is pushed into the drop hopper 18 and sent to the lower process equipment through the material pipe 19.

[0024] A protective cover 5 is provided above the push plate 8 and its driving mechanism. The protective cover 5 is provided on the top opening of the water material chamber 1 , and an observation window 6 is provided on the protective cover 5 .

[0025] During operation, after the coffee to be selected is fed into the water material chamber 1 from the feed port 3, the coffee fruit sinks to the bottom and then enters the material elevator 20. While being lifted from bottom to top to a high position, water is filtered out through a plurality of vertical through grooves 31 spaced apart on the upper part of the wall of the vertical cylinder 21, and then filtered again through the drain rack 14 and sent out through the conveying ramp 16. The filtered water returns to the water material chamber 1 through the reflux groove 15 and the horizontal filter plate 17. At the same time, the floating coffee fruit enters the drop hopper 18 under the push of the push plate 8, and is sent to the lower process equipment through the material pipe 19, thereby completing the flotation of the coffee.

Claims

1. A fresh coffee fruit flotation machine, comprising a frame, characterized in that The frame is provided with a shell with a water material chamber therein and a material inlet thereon, the water material chamber is provided with a material elevator whose input end is connected to the bottom of the water material chamber and whose output end is connected to the lower process equipment, the water material chamber is also provided with a drop hopper with an open top and the bottom connected to an external collection box through a material pipe, and the open edge of the top of the drop hopper is adapted to the liquid level in the water material chamber, a push plate connected to the driving mechanism is provided above the water material chamber, and a drain rack and a reflux trough are provided below the output end of the material elevator; The hopper is designed to be in the shape of a funnel with a large top opening and a small bottom outlet. The top width is consistent with the internal width of the water cavity. The height of the top opening edge is lower than the height of the shell top. The upper end of the material pipe is connected to the bottom outlet of the hopper, and the lower end extends vertically downward out of the shell and is connected to the collection box. The drain frame is arranged below the discharge port of the material elevator, the upper end of the drain frame is connected to the lower edge of the discharge port, the lower end is connected to the upper end of the downwardly inclined conveying ramp, and the lower end of the conveying ramp is matched with the lower process equipment; the drain frame includes a drain plate with a plurality of long through grooves arranged along the conveying direction, and side baffles arranged on both sides of the drain plate, and the long through grooves are evenly spaced from the upper end to the lower end of the drain plate; The reflux trough is arranged below the drain rack, and is an inclined trough body, the high end of the reflux trough is connected to the low end of the drain plate of the drain rack, and the low end is connected to the water material chamber, and a horizontal filter plate matched with the low end of the reflux trough is arranged in the water material chamber, the outer end of the horizontal filter plate is fixed on the shell, and the inner end is provided with a vertical baffle; The shell is configured as an inverted right-angled trapezoidal body with a large top and a small bottom and an outer plate configured as an inclined plate; the water-material cavity is configured as an inverted right-angled trapezoidal cavity adapted to the shape of the shell; the top of the water-material cavity is configured as an open cavity; and the feed inlet is configured at the open top of the water-material cavity and is located on the side of the inclined plate; The material elevators are provided as two parallel and spaced apart units, both of which are arranged in the water-material chamber, and a plurality of vertical through grooves are spaced apart on the upper part of the vertical cylinder wall of the material elevator; The drop hopper and the material pipe are located in front of the material elevator and behind the inclined plate of the shell, and the front edge of the top opening is set as a transition plate inclined backward and upward, and a triangular diverter plate is provided at the angle between the material pipe and the inclined plate of the shell.

2. The coffee fruit flotation machine according to claim 1, characterized in that The material elevator is configured as a screw conveyor, which is vertically arranged in a water material cavity on the side of the vertical plate of the shell. It includes a vertical cylinder with an inlet at the bottom and an outlet on the top side wall, a vertical rotating shaft with spiral blades arranged in the vertical cylinder, the bottom end of the vertical rotating shaft is matched with a seat bearing arranged at the bottom of the shell, and the top end extends upward out of the top of the shell and is connected to the main shaft of the power machine arranged at the top of the shell. The inlet at the bottom of the vertical cylinder is located at the bottom of the water material cavity, and the outlet at the top is located on one side of the top of the shell.

3. The coffee fruit flotation machine according to claim 1, characterized in that The push plate is transversely arranged at the upper part of the water material chamber, and is set as a vertical long strip whose width is adapted to the internal width of the water material chamber. The driving mechanism includes two horizontal rotating shafts that are spaced apart and transversely arranged at the upper part of the water material chamber. The two ends of each horizontal rotating shaft are rotatably connected with the seat bearings arranged on the side wall of the shell. Two spaced sprockets are respectively sleeved on the two horizontal rotating shafts, and a chain is sleeved between the sprockets on the same side. The two ends of the push plate are respectively fixed on the corresponding chains. One end of one of the horizontal rotating shafts extends outward from the side wall of the shell and is connected to the output shaft of the external reducer. The input shaft of the reducer is connected to the main shaft of the second power machine.

4. The coffee fruit flotation machine according to claim 1, characterized in that A protective cover is arranged above the push plate and its driving mechanism. The protective cover is arranged on the top opening of the water material chamber, and an observation window is arranged on the protective cover.

Images