Screw conveyor

Abstract

The present invention discloses a spiral conveying device, comprising a feed inlet, a discharge port and a shelling bin, wherein the feed inlet is arranged at one end of the shelling bin, the discharge port is arranged at the other end of the shelling bin, a rubber roller group is arranged in the shelling bin, a mesh screen is surrounded on the outside of the rubber roller group, and a bran discharge port is arranged at the discharge port end of the shelling bin; the rubber roller group comprises rubber roller a, rubber roller b and rubber roller c respectively controlled by roller pulleys, the centers of the rubber roller a and rubber roller b are on the same horizontal plane, and the centers of the rubber roller c and the centers of the rubber roller a and rubber roller b are in an inverted triangle; the mesh screen is driven to rotate by a reducer, the mesh screen is penetrated from left to right, and the inner wall of the mesh screen is provided with spiral blades; the inner wall of the shelling bin is provided with spiral blades. The spiral conveying device in the present invention concentrates the shelling, rolling and conveying of grains and cotton on one device, improves the integration and automation of the device, occupies a small area, and is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of grain transmission, in particular to a screw conveying device. Background Art

[0002] In terms of material transmission, grains and cotton products are generally transported by conveyor belts, which cannot be closed during transmission. Grains and cotton products are very likely to be affected by dust and weather humidity, resulting in cotton waste. Cotton products are commonly used raw materials in textiles. After cotton is picked, a certain shell will be left, which is not conducive to the subsequent textile processing. Therefore, it needs to be shelled, similar to the shelling of grains.

[0003] The grain transmission device and cotton product in the prior art do not have the shelling function, but only have the transmission function, and the degree of integration is low. Grains often need to be shelled and packaged by a shelling device after being transmitted. There are few devices in the prior art that have both the shelling function of grains and cotton products and the long-distance transmission function. If the transmission device and the shelling device are used separately, the device occupies a large space, the operation process is complicated, and the manpower and material costs required are high. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a spiral conveying device for grains and cotton products.

[0005] The technical solution adopted by the present invention is: a screw conveying device, comprising a feed inlet, a discharge port and a shelling bin, wherein the feed inlet is arranged at one end of the shelling bin, the discharge port is arranged at the other end of the shelling bin, a rubber roller group is arranged in the shelling bin, a mesh screen is surrounded on the outside of the rubber roller group, and a bran discharge port is arranged at the discharge port end of the shelling bin;

[0006] The rubber roller group comprises rubber roller a, rubber roller b and rubber roller c respectively controlled by roller pulleys, the centers of the rubber roller a and rubber roller b are on the same horizontal plane, and the center of the rubber roller c forms an inverted triangle with the centers of the rubber roller a and rubber roller b;

[0007] The mesh screen is driven to rotate by a reducer, the mesh screen runs through left and right, and the inner wall of the mesh screen is provided with spiral blades; the inner wall of the shelling bin is provided with spiral blades, and the spiral blades are inclined at an angle to the inner wall surface of the shelling bin;

[0008] When the conveying device is performing husking operation, rubber roller a and rubber roller b rotate at different speeds, squeezing and rubbing the rice passing through the rollers to husk it, and then the rice is separated by a mesh screen and spirally conveyed to the discharge port through the mesh screen; when the conveying device is performing rolling operation, rubber roller c is tangent to rubber roller a and rubber roller b, and the rice passing between rubber roller a and rubber roller b is rolled and conveyed, and the material is spirally conveyed through the husking bin and discharged from the bran discharge port.

[0009] Furthermore, the outer walls of the rubber roller a, rubber roller b and rubber roller c are all axially provided with strip-shaped protrusions, and the cross section of the protrusions is arc-shaped.

[0010] Furthermore, the diameters of the rubber roller a and the rubber roller b are the same, which is 80 mm, and the diameter of the rubber roller c is larger than that of the rubber roller a and the rubber roller b.

[0011] Furthermore, the feed port also includes a feed transmission channel, the other end of the feed transmission channel extends to the inside of the mesh screen, and the feed transmission channel outlet is arranged above the rubber roller group.

[0012] Furthermore, a discharge transmission channel is provided between the mesh screen and the discharge port, and the husked rice is separated from the husk by the mesh screen and then collected from the discharge port through the discharge transmission channel.

[0013] Furthermore, a control valve is provided at the end of the discharge transmission channel near the mesh screen, and the control valve is used to close the transmission channel to block the transportation of grains.

[0014] Furthermore, a spacing adjustment device is provided on the outer wall of the shelling bin, and the spacing adjustment device is connected to the side end of the rubber roller c. The adjustment device is used to lift and lower the rubber roller c, thereby adjusting the spacing between the rubber roller c and the rubber rollers a and b.

[0015] Furthermore, a fan is provided at one end of the feed inlet inside the shelling bin to clean out the residue at the bran outlet.

[0016] Furthermore, the outer wall of the shelling bin is driven to rotate by a pulley.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The spiral conveying device of the present invention integrates grain hulling, crushing and conveying in one device, thereby improving the integration and automation of the device, occupying a small area and being easy to operate.

[0019] 2. The present invention is provided with three rubber rollers, which can not only shell the grains and cotton raw materials, but also crush them. The rubber rollers c are raised and lowered by controlling the spacing adjustment device, and the working mode of the transmission device is switched, which is easy to operate.

[0020] 3. In the present invention, the outer wall of the rubber roller is provided with arc-shaped protrusions to improve the shelling ability and crushing ability of the rubber roller.

[0021] 4. In the present invention, the discharging transmission channel and the end of the mesh screen are provided with control valves, which are conducive to blocking the conveying and transmission of grains and changing the transmission path of the crushed grains and processed cotton.

[0022] 5. The bran outlet of the present invention can be used to discharge bran during shelling and is convenient for collecting crushed grains and crushed cotton, which can be used in multiple ways. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a screw conveying device according to Embodiment 1 of the present invention;

[0024] Figure 2 for Figure 1 Cross-section of the middle AA;

[0025] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0026] Figure 4 for Figure 3 Cross-section of the middle BB;

[0027] Figure 5 for Figure 4 Cross-section of CC.

[0028] Among them: 1-feeding port, 2-discharging port, 3-hulling bin, 4-rubber roller group, 5-mesh screen, 6-bran outlet, 7-spacing adjustment device, 8-fan, 9-pulley, 10-control valve, 11-feeding transmission channel, 12-rubber roller group a, 13-rubber roller group b, 14-export a, 15-export b, 16-switching valve a, 17-switching valve b, 21-discharging transmission channel, 41-rubber roller a, 42-rubber roller b, 43-rubber roller c, 44-rubber roller d, 45-rubber roller e, 51-spiral blade. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the combination or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, in the description of the embodiments of the present invention, the device positional relationships such as "up", "down", "front", "back", "left", "right" and the like in all the drawings are based on the positions or positional relationships shown in the accompanying drawings. Figure 1 As standard.

[0031] Embodiment 1:

[0032] like Figure 1 and Figure 2As shown, a screw conveying device includes a feed port 1, a discharge port 2 and a shelling bin 3, wherein the feed port 1 is arranged at one end of the shelling bin 3, the discharge port 2 is arranged at the other end of the shelling bin 3, a rubber roller group 4 is arranged in the shelling bin 3, a mesh screen 5 is surrounded on the outside of the rubber roller group 4, and a bran discharge port 6 is arranged at the discharge port end of the shelling bin 3.

[0033] In the above embodiment, the rubber roller group 4 includes a rubber roller a41, a rubber roller b42 and a rubber roller c43 which are respectively controlled by roller pulleys, the centers of the rubber roller a41 and the rubber roller b42 are on the same horizontal plane, the center of the rubber roller c43 forms an inverted triangle with the centers of the rubber rollers a41 and b42; the outer walls of the rubber rollers a41, b42 and c43 are axially provided with strip-shaped protrusions, the cross-section of the protrusions is arc-shaped, the diameters of the rubber rollers a41 and b42 are the same, which is 80 mm, and the diameter of the rubber roller c43 is larger than that of the rubber rollers a41 and b42.

[0034] In the above embodiment, the mesh screen 5 is driven to rotate by a speed reducer, the mesh screen 5 penetrates from left to right, and spiral blades 51 are arranged on the inner wall of the mesh screen 5 .

[0035] In the above embodiment, the inner wall of the shelling bin 3 is provided with a spiral blade 51, and the spiral blade 51 is inclined at an angle to the inner wall surface of the shelling bin 3; the outer wall of the shelling bin 3 is provided with a spacing adjustment device 7, and the spacing adjustment device 7 is connected to the side end of the rubber roller c43. The spacing adjustment device 7 is used to raise and lower the rubber roller c43, thereby adjusting the spacing between the rubber roller c43 and the rubber rollers a41 and b42. A fan 8 is provided at one end of the internal feed port 1 of the shelling bin 3 to clean up the bran residue at the outlet, and the outer wall of the shelling bin 3 is driven by a pulley 9.

[0036] In the above embodiment, the feed port 1 also includes a feed transmission channel 11, the other end of the feed transmission channel 11 extends to the inside of the mesh screen 5, and the feed transmission channel 11 is provided with an outlet a14 and an outlet b15, and the outlet a14 and the outlet b15 are respectively arranged above the rubber roller group a12 and the rubber roller group b13, and the outer wall of the shelling bin 3 is also provided with a switch valve a16 and a switch valve b17 corresponding to the outlet a14 and the outlet b15.

[0037] In the above embodiment, a discharge transmission channel 21 is arranged between the mesh screen 5 and the discharge port 2. After the husked rice passes through the mesh screen 5 to separate the grains and the husks, it is collected by the discharge port 2 through the discharge transmission channel 21. A control valve 10 is arranged near the end of the mesh screen 5 in the discharge transmission channel 21. The control valve 10 is used to close the transmission channel to block the transportation of the grains.

[0038] In the above embodiment, when the conveying device performs shelling operation, the rubber roller a41 and the rubber roller b42 are regulated by the roller pulley and rotate at different speeds. The rubber roller is made of styrene-butadiene rubber with a tear strength of 23-25 ​​MPa. The rotation speed of the rubber roller a41 is 800 rpm, and the rotation speed of the rubber roller b42 is 900 rpm. The rice passing through the rollers is squeezed and rubbed to shell. After the grain is separated by the mesh screen 5, the rice is spirally conveyed to the discharge port 2 by the spiral blades 51 on the inner wall of the mesh screen 5; when the conveying device performs rolling operation, the spacing adjustment device 7 is regulated, and the rubber roller c43 is turned on for operation. The spacing adjustment device 7 lifts and lowers the rubber roller c43 through the cylinder. The rubber roller c43 is tangent to the rubber roller a41 and the rubber roller b42. After the grain is shelled by the rubber roller a41 and the rubber roller b42, the shelled rice is rolled and conveyed by the rubber roller c43. The material is spirally conveyed by the spiral blades 51 on the inner wall of the shelling bin 3 and discharged from the bran outlet 6.

[0039] Embodiment 2:

[0040] like Figure 3 , Figure 4 and Figure 5 As shown, a screw conveying device includes a feed port 1, a discharge port 2 and a shelling bin 3, wherein the feed port 1 is arranged at one end of the shelling bin 3, the discharge port 2 is arranged at the other end of the shelling bin 3, a rubber roller group a12 and a rubber roller group b13 are arranged in the shelling bin 3, the rubber roller group a12 and the rubber roller group b13 are arranged on the same horizontal line, a mesh screen 5 is surrounded on the outside of the rubber roller group a12 and the rubber roller group b13, and a bran discharge port 6 is arranged at the discharge port end of the shelling bin 3.

[0041] In the above embodiment, the rubber roller group a12 and the rubber roller group b13 are both controlled by roller pulleys, the rubber roller group a12 includes a rubber roller a41 and a rubber roller b42, the centers of the rubber roller a41 and the rubber roller b42 are on the same horizontal plane, and the grains are shelled by being squeezed and rubbed between the rubber roller a41 and the rubber roller b42; the rubber roller group b13 includes a rubber roller d44 and a rubber roller e45, and the centers of the rubber roller d44 and the rubber roller e45 of the rubber roller group b13 are also on the same horizontal plane, and the grains are crushed by the rubber roller d44 and the rubber roller e45 and then spirally transported by the shelling bin 3 and collected by the bran outlet 6.

[0042] The outer walls of the rubber rollers a41, b42, d44 and e45 are all axially provided with strip-shaped protrusions, and the cross-section of the protrusions is arc-shaped. The diameters of the rubber rollers a41 and b42 are the same, which is 80 mm. The diameters of the rubber rollers d44 and e45 are 100 mm, which are larger than the diameters of the rubber rollers a41 and b42.

[0043] In the above embodiment, the mesh screen 5 is driven to rotate by a speed reducer, the mesh screen 5 penetrates from left to right, and spiral blades 51 are arranged on the inner wall of the mesh screen 5 .

[0044] In the above embodiment, the inner wall of the shelling bin 3 is provided with a spiral blade 51, and the spiral blade 51 is inclined at an angle to the inner wall surface of the shelling bin 3; a fan 8 is provided at one end of the internal feed port 1 of the shelling bin 3 to clean the bran residue at the outlet, and the outer wall of the shelling bin 3 is driven by a pulley 9.

[0045] In the above embodiment, the feed port 1 also includes a feed transmission channel 11, the other end of the feed transmission channel 11 extends to the inside of the mesh screen 5, and the feed transmission channel 11 is provided with an outlet a14 and an outlet b15, the outlet a14 and the outlet b15 are respectively arranged above the rubber roller group a12 and the rubber roller group b13, the outlet a is provided with a closed switch a16 and a switch b17 for blocking the material flow to the outlet b15, and the outer wall of the shelling bin 3 is provided with a corresponding valve.

[0046] In the above embodiment, a discharge transmission channel 21 is arranged between the mesh screen 5 and the discharge port 2. After the husked rice passes through the mesh screen 5 to separate the grains and the husks, it is collected by the discharge port 2 through the discharge transmission channel 21. A control valve 10 is arranged near the end of the mesh screen 5 in the discharge transmission channel 21. The control valve 10 is used to close the transmission channel to block the transportation of the grains.

[0047] In the above embodiment, when the conveying device performs shelling operation, the switch valve b17 is closed, the outlet b15 is closed, the rubber roller a41 and the rubber roller b42 are regulated by the roller pulley and rotate at different speeds. The rubber roller is made of styrene-butadiene rubber with a tear strength of 23-25 ​​MPa. The rotation speed of the rubber roller a41 is 1500 rpm, and the rubber roller b42 does not rotate. The grain enters from the feed inlet 1 and is fed to the rubber roller a41 and the rubber roller b42 from the outlet a14. The rubber roller a41 and the rubber roller b42 are used to align the rice passing through the rollers. The rice is squeezed and rubbed to remove the shell, and then the rice is separated by the mesh screen 5, and the rice is spirally conveyed to the discharge port 2 by the spiral blades 51 on the inner wall of the mesh screen 5; when the conveying device performs the rolling operation, the switch valve a16 is closed, and the outlet a14 is closed, and the rice enters from the feed port 1, and is fed to the rubber roller d44 and the rubber roller e45 from the outlet b15. The rubber roller d44 and the rubber roller e45 are tangent to each other, and the rice is rolled and conveyed, and the material is spirally conveyed by the spiral blades 51 on the inner wall of the shelling bin 3 and discharged from the bran outlet 6.

[0048] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A screw conveying device, comprising a feed port, a discharge port and a shelling bin, wherein the feed port is arranged at one end of the shelling bin, and the discharge port is arranged at the other end of the shelling bin, characterized in that: A rubber roller group is arranged in the shelling bin, a mesh screen is arranged on the outside of the rubber roller group, and a bran outlet is arranged at the outlet end of the shelling bin; The rubber roller group comprises rubber roller a, rubber roller b and rubber roller c respectively controlled by roller pulleys, the centers of the rubber roller a and rubber roller b are on the same horizontal plane, and the center of the rubber roller c forms an inverted triangle with the centers of the rubber roller a and rubber roller b; The mesh screen is driven to rotate by a reducer, the mesh screen runs through left and right, and the inner wall of the mesh screen is provided with spiral blades; the inner wall of the shelling bin is provided with spiral blades, and the spiral blades are inclined at an angle to the inner wall surface of the shelling bin; When the conveying device is performing husking operation, rubber roller a and rubber roller b rotate at different speeds, squeezing and rubbing the rice passing through the rollers to husk it, and then the rice is separated by a mesh screen and spirally conveyed to the discharge port through the mesh screen; when the conveying device is performing rolling operation, rubber roller c is tangent to rubber roller a and rubber roller b, and the rice passing between rubber roller a and rubber roller b is rolled and conveyed, and the material is spirally conveyed through the husking bin and discharged from the bran discharge port.

2. The screw conveying device according to claim 1, characterized in that: The outer walls of the rubber roller a, rubber roller b and rubber roller c are all axially provided with strip-shaped protrusions, and the cross section of the protrusions is arc-shaped.

3. The screw conveying device according to claim 2, characterized in that: The diameters of the rubber roller a and the rubber roller b are the same, that is, 80 mm, and the diameter of the rubber roller c is larger than that of the rubber roller a and the rubber roller b.

4. The screw conveying device according to claim 1, characterized in that: The feed port also includes a feed transmission channel, the other end of which extends to the inside of the mesh screen, and an outlet of the feed transmission channel is arranged above the rubber roller group.

5. The screw conveying device according to claim 1, characterized in that: A discharge transmission channel is arranged between the mesh screen and the discharge port. After the husked rice is separated from the grain and the husk by the mesh screen, it is collected from the discharge port through the discharge transmission channel.

6. The screw conveying device according to claim 5, characterized in that: The discharge transmission channel is provided with a control valve near the end of the mesh screen, and the control valve is used to close the transmission channel to block the transportation of grains.

7. The screw conveying device according to claim 1, 2 or 3, characterized in that: The outer wall of the shelling bin is provided with a spacing adjustment device, which is connected to the side end of the rubber roller c. The adjustment device is used to lift and lower the rubber roller c, thereby adjusting the spacing between the rubber roller c and the rubber rollers a and b.

8. The screw conveying device according to claim 7, characterized in that: A fan is arranged at one end of the feeding port inside the shelling bin to clean the residue at the hull outlet.

9. The screw conveying device according to claim 7 or 8, characterized in that: The outer wall of the shelling bin is driven to rotate by a belt pulley.

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