Automatic material blocking device

Abstract

The invention discloses an automatic material blocking device which comprises a door baffle assembly, an air cylinder assembly, an air cylinder fixing plate assembly and a double-lug-ring support assembly, the two sides of the door baffle assembly are connected with the air cylinder fixing plate assembly through knuckle bearings and outer hexagon bolts, and the middle of the door baffle assembly is connected with the double-lug-ring support assembly through outer hexagon bolts. One side of the cylinder assembly is connected with the double-lug-ring support through the cylinder rear seat assembly, and the other side is connected with the universal joint rod. The whole automatic material blocking device is fixed to a supporting plate of the rice huller, it is ensured that the door baffle is clamped between the feeding port of the discharging groove and the discharging port of the vibration discharger, the problem that under the condition that the rice huller is shut down due to material blocking, the feeding port cannot seal an inlet in time, and then continuous feeding is stopped is solved, the rice huller is prevented from being damaged, and the service life of the rice huller is prolonged. Before the rice huller is started and the rollers are closed, unhulled rice directly enters the next working procedure under the condition that the unhulled rice is not hulled, the unhulled rice is prevented from being hulled back and forth, and the phenomenon that scattered unhulled rice enters a chute between the movable roller and the fixed roller, and consequently a rubber roller is abraded unevenly is avoided.

Description

Technical Field

[0001] The present invention relates to the field of rice hulling machines, and particularly relates to an automatic feeding device. Background Art

[0002] In the prior art, the rice hulling machine and the previous process elevator are started simultaneously. Basically, at the moment when the rice hulling machine starts, the paddy has already entered the chamber of the rice hulling machine. This is likely to damage the rubber rolls and the rice hulling machine. Therefore, when the rice hulling machine starts, it is required that the paddy be delayed for a few seconds before entering the dehulling chamber. Only when the rice hulling machine runs stably, is it the best state to feed the paddy for dehulling. When the rice hulling machine is blocked and stops running, it is also necessary to prevent the paddy from continuing to enter the chamber of the rice hulling machine, which may cause difficulties in subsequent cleaning. In view of the above situation, the traditional rice hulling machine uses a manual gate. When the rice hulling machine starts, a worker is required to specifically open the feeding gate. This can also solve the former problem, but it is basically manual. For the latter problem that the feeding pipe is blocked and the rice hulling machine stops running, since the worker cannot discover it in the first time, such a structure cannot effectively solve the latter blockage problem. There are also automatic feeding structures designed by other rice hulling machine manufacturers in the market. Although they can effectively solve the above two problems, the automatic feeding structure designed by the other party is relatively complex and the cost is relatively high, which indirectly increases the production cost of the rice hulling machine. Summary of the Invention

[0003] Object of the Invention: The present invention provides an automatic feeding device, which effectively solves the problem of automatic feeding in the rice hulling machine by converting the displacement change into rotation through the telescopic movement of a cylinder, improves the automation degree of the rice hulling machine to a certain extent, and reduces the production cost of the rice hulling machine at the same time.

[0004] Technical solution: An automatic feeding device proposed by the present invention includes a support plate, a cylinder fixing plate assembly fixed in the middle of the rear end of the support plate, a double-earring support assembly, a door baffle assembly, a cylinder rear seat assembly, a cylinder assembly, and a universal joint rod; the cylinder fixing plate assembly includes a fixing plate fixed to the support plate, an upper vertical plate located above the front end of the fixing plate, and lower vertical plates located below both sides of the fixing plate. The double-earring support assembly is fixed on the upper vertical plate. The double-earring support assembly is connected to the cylinder assembly through the cylinder rear seat assembly. The rod end of the cylinder assembly is fixedly connected to the universal joint rod. The door baffle assembly includes an L-shaped folding plate and a reinforcing plate. The universal joint rod is fixed at the middle position of the L-shaped folding plate through the double-earring support assembly. Both sides of the L-shaped folding plate are movably connected to the lower vertical plates below both sides of the fixing plate through spherical plain bearings. The door baffle assembly is located between the vibrating feeder and the feeding chute; when the rod of the cylinder assembly contracts, the reinforcing plate is engaged with the feeding chute, and at this time, the door baffle assembly is in a locked state; when the rod of the cylinder assembly extends to drive the universal joint rod to rotate clockwise around the pin shaft under the action of the rod, it pushes the double-earring support assembly and the door baffle assembly to rotate clockwise around the spherical plain bearings on both sides. At this time, the door baffle assembly is in an open state, and the paddy enters the feeding chute under the drive of the vibrating feeder.

[0005] Preferably, the double-earring support assembly includes a double-earring support, DK retaining clips located on both sides of the double-earring support, and a pin shaft; both sides of the double-earring support are clamped with the pin shaft by the DK retaining clips.

[0006] Preferably, the cylinder rear seat assembly includes a cylinder rear seat plate and bolts. The cylinder rear seat plate is connected to the pin shaft of the double-earring support assembly, and the cylinder rear seat plate is fixedly connected to the cylinder assembly through the bolts.

[0007] Preferably, the cylinder assembly includes a cylinder and an L-shaped external thread tee arranged outside the cylinder. The rod end of the cylinder is connected to the fixed end of the universal joint rod.

[0008] Preferably, the bearing end of the universal joint rod is movably connected to the double-earring support through a pin shaft.

[0009] Preferably, the double-earring support is respectively fixedly connected to the upper vertical plate and the door baffle assembly through the cooperation of bolts and lock nuts. A number of washers are also provided between the bolts and the lock nuts, and a backing plate is provided between the double-earring support and the door baffle assembly.

[0010] Preferably, the two side edges of the main plane of the fixing plate are bent downward in an L shape to form lower vertical plates. The lower vertical plates are symmetrically distributed and one side edge is an inclined edge. Circular through holes are provided on the lower vertical plates.

[0011] Preferably, the spherical plain bearing is connected to the lower vertical plate through cooperation of a bolt and a lock nut. A thick gasket is provided between the spherical plain bearing and the lower vertical plate. The lower end of the spherical plain bearing is connected to the L-shaped folding plate through cooperation of the lock nut and a nut, and several gaskets are provided between the lock nut and the nut.

[0012] Preferably, the fixed plate is fixedly connected to the support plate through cooperation of an external hexagon bolt and a flat head nut. A bolt gasket is further provided between the external hexagon bolt and the support plate.

[0013] Preferably, a feed inlet is further provided at the front end of the support plate. A vibrating unloader is arranged below the feed inlet, and one end of the discharge port of the vibrating unloader is connected to a blanking chute.

[0014] Beneficial effects: An automatic blanking device proposed by the present invention is integrally fixed on the support plate of a rice huller, ensuring that the door baffle is stuck between the feed inlet of the blanking chute and the discharge port of the vibrating unloader. It solves the problem that when the rice huller is blocked and stops, the feed inlet cannot be sealed in time to prevent continuous feeding, thereby avoiding damage to the rice huller. At the same time, it also ensures that before the rice huller starts to close the rollers, rice can directly enter the next process without being hulled by the rice huller, avoiding the repeated hulling of the raw grain. It can also ensure that after the material accumulates to a certain extent, the feed door is opened to allow a certain amount of rice to enter the chute between the moving and stationary rubber rollers, avoiding scattered rice entering the chute between the moving and stationary rollers, resulting in uneven wear of the rubber rollers. To a certain extent, the automation degree of the rice huller is improved. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the working state of the automatic blanking device;

[0016] Figure 2 It is a sectional view of the working state of the automatic blanking device;

[0017] Figure 3 It is a schematic overall structural diagram of the automatic blanking device;

[0018] Figure 4 It is a side view of the overall structure of the automatic blanking device;

[0019] Figure 5 It is a schematic structural diagram of the door baffle assembly;

[0020] Figure 6 It is a schematic structural diagram of the double-earring support assembly;

[0021] Figure 7 It is a schematic structural diagram of the cylinder fixing plate assembly;

[0022] Figure 8 It is a detailed installation drawing of the double-earring support assembly and the universal joint rod;

[0023] Figure 9 It is the installation detail drawing of the cylinder assembly, the cylinder rear seat assembly and the double-earring support assembly;

[0024] Figure 10 It is the installation detail drawing of the double-earring support assembly and the cylinder fixing plate;

[0025] Figure 11 It is the installation schematic diagram of the double-earring support assembly and the door baffle assembly;

[0026] Figure 12 It is the installation schematic diagram of the spherical plain bearing, the door baffle assembly and the cylinder fixing plate assembly;

[0027] Figure 13 It is the installation detail drawing of the automatic blanking device on the support plate;

[0028] Figure 14 It is the structure drawing of the spherical plain bearing;

[0029] Figure 15 It is the overall structure drawing of the automatic blanking device installed on the support plate. Specific embodiments

[0030] The present invention will be further described below in conjunction with specific drawings, where the serial numbers in different views are all interrelated and there is a connection between them.

[0031] As Figure 1 and 2 shown, it is the schematic diagram of the peripheral mating structure of the automatic blanking device in the working state. The cylinder fixing plate assembly 2, the support plate 9, the door baffle assembly 3, the blanking chute 10, the vibrating unloader 11, the feed inlet 12. The cylinder fixing plate assembly 2 is fixed at the middle position at the rear end of the support plate 9. The feed inlet 12 is located at the front end of the support plate 9. The vibrating unloader 11 is located below the feed inlet 12 and inside the rice huller. The discharge port of the vibrating unloader 11 is connected to the blanking chute 10. The door baffle assembly 3 is located between the vibrating unloader 11 and the blanking chute 10.

[0032] As Figure 3 and 4As shown in the figure, the automatic feeding device includes a door baffle assembly 3, a cylinder fixing plate assembly 2, a cylinder assembly 5, a double-earring support assembly 1, a cylinder rear seat assembly 4, a backing plate 8, a universal joint rod 6 and a joint bearing 7. The door baffle assembly 3 is composed of a patch plate 3.2 and an L-shaped folding plate 3.1. The patch plate 3.2 is a cuboid with a certain thickness; the L-shaped folding plate 3.1 is in the form of an L-shaped bend, with one side fold being rectangular and the other side being a dovetail shape, and there are several circular through holes above the dovetail-shaped fold. The cylinder fixing plate assembly 2 is composed of an upper vertical plate 2.1, an external hexagonal bolt 2.2, a bolt gasket 2.3, a flat head nut 2.4, a fixing plate 2.5 and a lower vertical plate 2.6. Among them, the two side edges of the main plane of the fixing plate 2.5 are bent downward in an L shape to form the lower vertical plate 2.6 and are symmetrically distributed. One side edge of the bending surface of the lower vertical plate 2.6 is an inclined edge, and there is a circular through hole on each bending surface of the lower vertical plate 2.6. The rear side of the main plane of the fixing plate 2.5 is bent upward in an L shape to form the upper vertical plate 2.1, and there are two circular through holes on the upper vertical plate 2.1. There is a rectangular through hole in the middle position of the fixing plate 2.5, and there is a hexagonal through hole on each side of the rectangular through hole; one side of the external hexagonal bolt 2.3 is a hexagonal cylinder, and the other side is a cylinder, and the hexagonal cylinder and the cylinder are coaxial, and there is a thread distribution on the outer side of the cylinder. The bolt gasket 2.3 is an annular cylinder; the flat head nut 2.4 is composed of a hexagonal cylinder and a cylinder, and they are coaxial. There is a hexagonal hole inside the hexagonal cylinder, and there is a threaded through hole inside the cylinder. The cylinder assembly 5 is composed of a cylinder 5.1 and an L-shaped external threaded tee 5.2. One side of the cylinder is a square cylinder, and the other side is a cylinder with a certain length. There is a thread on the outer side of the cylinder, and the cylinder is coaxial with the square cylinder. A nut is installed on the outer side of the cylinder screw; the L-shaped external threaded tee is an integral of two cylinders spliced at 90°. There is a thread distribution on the outer cylindrical surface of one side, and there are circular through holes inside both cylinders, and they are connected and communicated at the splicing point. The double-earring support assembly 1 is composed of a double-earring support 1.1, a pin shaft 1.3 and a DK retainer 1.2. The two side edges of the double-earring support 1.1 are formed by L-shaped bends, and the two side edges are symmetrically distributed. There are circular through holes on both side edges, and there are two circular through holes on the bottom plane of the double-earring support 1.1; the DK retainer 1.2 is an integral rectangle in the form of a U-shaped fold, and the U-shaped opening position is in a tight state. There are U-shaped openings in the middle positions of the two bending surfaces, and these two U-shaped openings are in opposite directions. The cylinder rear seat assembly 4 is composed of a cylinder rear seat 4.1 and an internal hexagonal bolt 4.2, as Figure 9As shown in the figure, the cylinder rear seat assembly 4 is composed of the cylinder rear seat 4.1 passing through four hexagon socket head cap screws 4.2 respectively; the backing plate 8 is a cuboid, and there are two circular through holes on one end face; one side of the universal joint rod 6 is a fish-eye-shaped cylinder, the middle is a rectangular cylinder, and the other side is a waist-shaped cylinder, and there is a threaded hole with a certain depth on the end face of the waist-shaped cylinder. One side of the spherical plain bearing 7 is a fish-eye-shaped cylinder, and the other side is a cylinder with a certain length, and external threads are distributed on the cylinder. Between the universal joint rod 6 and the spherical plain bearing 7, there is a rolling bearing for connection in the middle of the fish-eye-shaped cylinder. The cylinder assembly 5 is fixed on the cylinder fixing plate assembly 2 through the double-earring support assembly 1 and the cylinder rear seat assembly 4. The rod end of the cylinder assembly 5 is connected to the universal joint rod 6. The universal joint rod 6 is fixed on the door baffle assembly 3 through the double-earring support assembly 1. The cylinder fixing plate assembly 2 is connected to the door baffle assembly 3 through the spherical plain bearing 7.

[0033] Description of the installation details of the present invention: As Figure 10 shown in the figure, first align the two holes in the upward-bent edge of the double-earring support 1.1 and the cylinder fixing plate 2.1, and then pass the bolt 13 from left to right through the upper vertical plate 2.1, the double-earring support 1.1, the gasket 14 and the lock nut 15 in sequence, and tighten the lock nut 15. As Figure 11 and 12 shown in the figure, align the two holes on the bottom surface of the other double-earring support 1.1 with the two holes on the backing plate 8 and the upper surface of the door baffle assembly 3 respectively, and then pass the bolt 13 from bottom to top through the gasket 14, the door baffle assembly 3, the backing plate 8, the double-earring support 1.1, the gasket 14 and the lock nut 15 respectively, and finally tighten the lock nut 15. Then fix the universal joint rod 6 on the double-earring support 1.1 on one side of the door baffle. As Figure 8 shown in the figure, align the through hole at the bearing end of the universal joint rod 6 with the two circular through holes on both sides of the double-earring support 1.1, and then pass the pin shaft 1.3 from left to right through the hole on one side of the double-earring support 1.1, the universal joint rod 6 and the hole on the other side of the double-earring support in sequence. Next, use the DK retaining clips 1.2 on both sides of the double-earring support to respectively hold both sides of the pin shaft 1.3. As Figure 13 shown in the figure, install and fix the cylinder assembly 5, the cylinder rear seat assembly 4 and the double-earring support 1.1 on the upper surface of the upper vertical plate 2.1. First, fix the cylinder rear seat assembly 4 on the cylinder assembly 5, then align the round hole on the upper surface of the waist-shaped cylinder of the cylinder fixing seat 4.1 with the two circular through holes on both sides of the double-earring support 1.1, and then pass the pin shaft 1.3 from left to right through the round hole on one side of the double-earring support, the cylinder rear seat and the other side of the double-earring support in sequence. Finally, fix both sides of the pin shaft 1.3 with the DK retaining clips 1.2 respectively, and the installation is completed. Next, screw one side of the bolt on the cylinder into the universal joint rod 6. Finally, as Figure 12As shown, pass the external hexagon bolt 13 through the spherical plain bearing 7, thick washer 16, lower vertical plate 2.6, washer 14 and lock nut 15 from right to left in sequence, and screw the lock nut 15 to a certain position to ensure that the door baffle assembly 3 can rotate around the bolt 13. Subsequently, pass the threaded section of the spherical plain bearing 7 through the nut 17, washer 14, door baffle 3.1, washer 14 and lock nut 15 from top to bottom in sequence, and simultaneously tighten the lock nut 15 and the nut 17 in the reverse direction. The same installation method is adopted for the other side. Thus, the fixed assembly of the automatic blanking device is completed. Figure 13 and 15 The installation method for fixing the entire automatic blanking device to the rice huller support plate 9 is as follows: Just place the support plate 9 on the upper side of the automatic blanking device and make it flush with the main plane of the cylinder fixing plate 2.1. Pass the external hexagon bolt 2.2 through the washer 2.3 and the support plate 9 from top to bottom in sequence, and finally tighten it on the flat head nut 2.4.

[0034] The working principle and process of the present invention: This is described in conjunction with Figure 1 and Figure 2 When the rice huller starts, the moving and stationary rollers of the rice huller start to operate, and at the same time, the feeding port 12 starts to feed, and the vibrating discharger 11 starts to vibrate. These three states basically occur at the same moment. At this time, the door baffle assembly 3 in the automatic blanking device is in a locked state, preventing the rice from entering the blanking chute 10 from the vibrating discharger 11. After a few seconds, when the moving and stationary rubber rollers run stably, the cylinder assembly 5 receives the air supply signal, and the front air rod extends. At this time, under the external force of the air rod, one end of the cylinder rear seat assembly 4 drives the cylinder assembly 5 to rotate counterclockwise around the pin shaft. On the other side, under the action of the air rod, the universal joint rod 6 rotates clockwise around the pin shaft, and at the same time, it pushes the double-ear support 1.1 and the door baffle assembly 3 to rotate clockwise around the two bolts 13. At this time, the rice is driven by the vibrating discharger 11 and enters the blanking chute 10 to start the hulling operation. When the rice huller suddenly stops for some reason, at this time, the cylinder assembly 5 receives the signal, the air rod contracts, one end of the cylinder rear seat assembly 4 drives the cylinder assembly to rotate clockwise around the pin shaft, and on the other side, the universal joint rod 6 pulls the double-ear support 1.1 and the door baffle assembly 3 to rotate counterclockwise around the external hexagon bolt 13 to block the feeding port and prevent continuous feeding, thus protecting the rice huller.

Claims

1. An automatic feeding device, characterized in that, It includes a support plate (9), a cylinder fixing plate assembly (2) fixed in the middle of the rear end of the support plate (9), a double-earring support assembly (1), a door baffle assembly (3), a cylinder rear seat assembly (4), a cylinder assembly (5) and a universal joint rod (6); the cylinder fixing plate assembly (2) includes a fixing plate (2.5) fixed to the support plate (9), an upper vertical plate (2.1) located above the front end of the fixing plate (2.5), and lower vertical plates (2.6) located below both sides of the fixing plate (2.5). The double-earring support assembly (1) is fixed on the upper vertical plate (2.1). The double-earring support assembly (1) is connected to the cylinder assembly (5) through the cylinder rear seat assembly (4). The rod end of the cylinder assembly (5) is fixedly connected to the universal joint rod (6). The door baffle assembly (3) includes an L-shaped folding plate (3.1) and a supplementary plate (3.2). The universal joint rod (6) is fixed at the middle position of the L-shaped folding plate (3.1) through the double-earring support assembly (1). Both sides of the L-shaped folding plate (3.1) are movably connected to the lower vertical plates (2.6) below both sides of the fixing plate (2.5) through joint bearings (7). The door baffle assembly (3) is located between the vibrating discharger (11) and the blanking chute (10); when the rod of the cylinder assembly (5) contracts, the supplementary plate (3.2) is engaged with the blanking chute (10), and at this time the door baffle assembly (3) is in a locked state; when the rod of the cylinder assembly (5) extends to drive the universal joint rod (6), under the action of the rod, it rotates clockwise around the pin shaft (1.3), pushing the double-earring support assembly (1) and the door baffle assembly (3) to rotate clockwise around the joint bearings (7) on both sides. At this time, the door baffle assembly (3) is in an open state, and the paddy enters the blanking chute (10) driven by the vibrating discharger (11).

2. The automatic feeding device according to claim 1, wherein The double-earring support assembly (1) includes a double-earring support (1.1), DK retaining clips (1.2) located on both sides of the double-earring support (1.1), and a pin shaft (1.3); both sides of the double-earring support (1.1) are clamped with the pin shaft (1.3) by the DK retaining clips (1.2).

3. The automatic feeding device according to claim 2, wherein The cylinder rear seat assembly (4) includes a cylinder rear seat plate (4.1) and bolts (4.2). The cylinder rear seat plate (4.1) is connected to the pin shaft (1.3) of the double-earring support assembly (1), and the cylinder rear seat plate (4.1) is fixedly connected to the cylinder assembly (5) through the bolts (4.2).

4. The automatic feeding device according to claim 3, wherein, The cylinder assembly (5) includes a cylinder (5.1) and an L-shaped external thread tee (5.2) arranged outside the cylinder. The rod end of the cylinder (5.1) is connected to the fixed end of the universal joint rod (6).

5. The automatic feeding device according to claim 2, characterized in that, The bearing end of the universal joint rod (6) is movably connected to the double-earring support (1.1) through the pin shaft (1.3).

6. The automatic feeding device according to claim 2, wherein The double-earring support (1.1) is fixedly connected to the upper vertical plate (2.1) and the door baffle assembly (3) respectively through the cooperation of bolts (13) and lock nuts (15). A number of gaskets (14) are also provided between the bolts (13) and the lock nuts (15). A backing plate (8) is provided between the double-earring support (1.1) and the door baffle assembly (3).

7. The automatic feeding device according to claim 1, characterized in that, The two side edges of the main plane of the fixed plate (2.5) are bent downward in an L shape to form lower vertical plates (2.6). The lower vertical plates (2.6) are symmetrically distributed and one side edge is an inclined edge. Circular through holes are provided on the lower vertical plates (2.6).

8. The automatic feeding device according to claim 1, wherein The spherical plain bearing (7) is connected to the lower vertical plate (2.6) through the cooperation of bolts (13) and lock nuts (15). A thick gasket (16) is provided between the spherical plain bearing (7) and the lower vertical plate (2.6). The lower end of the spherical plain bearing (7) is connected to the L-shaped folding plate (3.1) through the cooperation of a lock nut (15) and a nut (17). A number of gaskets (14) are provided between the lock nut (15) and the nut (17).

9. The automatic feeding device according to claim 1, wherein The fixed plate (2.5) is fixedly connected to the support plate (9) through the cooperation of hexagon socket head cap screws (2.2) and flat head nuts (2.4). A bolt gasket (2.3) is also provided between the hexagon socket head cap screws (2.2) and the support plate (9).

10. The automatic feeding device according to claim 1, characterized in that A feed inlet (12) is further provided at the front end of the support plate (9). A vibrating unloader (11) is arranged below the feed inlet (12). One end of the discharge port of the vibrating unloader (11) is connected to a blanking chute (10).

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