Corn cob huller and guide roller thereof

Abstract

The invention provides a corn cob huller and a guide roller thereof, which not only can give consideration to corn cob hulling efficiency, but also can reduce damage in a corn cob hulling process, and relates to the technical field of corn cob hulling. The guide roller of the corn cob huller is divided into at least two section parts which are fixedly connected end to end in the length direction, the surface of each section part is provided with at least one spiral guide rib which spirally extends in the axis direction of the section part, and at least one spiral groove can be formed in the surface of each spiral guide rib; from one end of the guide roller to the other end of the guide roller, the width of the spiral groove of the next section part of every two adjacent section parts is smaller than that of the spiral groove of the previous section part of every two adjacent section parts. The competitiveness of the peeling machine can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of corn cob peeling, in particular to a corn cob peeling machine and a guide roller thereof. Background Art

[0002] During the production and processing of corn cobs, the corn cobs need to be peeled (husked), but the traditional manual peeling is time-consuming and laborious.

[0003] The Chinese patent application with application number CN201220542380.8 discloses a corn peeling machine, including a frame, a motor and a peeling bin are installed on the frame, a feed hopper is provided on one side of the peeling bin, and a discharge port is provided on the other side, two parallel peeling rubber rollers with fish scale-like protrusions on the surface are rotatably installed in the peeling bin, two parallel guide rollers are provided between the two peeling rubber rollers, and spiral guide ribs are provided on the two guide rollers, the output shaft of the motor is respectively connected to the peeling rubber roller and the guide roller through a belt, and a baffle plate is hinged above the peeling rubber roller and the guide roller in the peeling bin. Under the action of the peeling rubber roller and the guide roller matched therewith, the thresher rolls the corn husk between the adjacent peeling rubber roller and the guide roller, and then is torn off under the action of the friction between the two, thereby improving the peeling efficiency and reducing the labor intensity. The spiral guide ribs can act on the corn cob to guide the corn cob (to make the corn cob along the direction of the guide roller) and push the corn cob to move along the direction of the guide roller toward the discharge port of the peeling bin, and can also generate lateral squeezing force and peeling friction force on the corn cob.

[0004] like Figure 1 As shown, the spiral guide ribs of the existing guide rollers are uniformly arranged in the length direction of the guide rollers, so that the width of the spiral groove 12 formed by the spiral guide ribs is also uniform. In practice, the applicant found that the width of the spiral groove 12 is positively correlated with the damage of the corn cob, that is, the larger the width of the spiral groove, the greater the damage of the corn cob during the peeling process. The existing guide rollers have a structure in which the spiral guide ribs are uniformly arranged in the length direction of the guide roller. In order to guide the corn cobs that enter the peeling bin in a disorderly manner as soon as possible and push them to the discharge port to improve the peeling efficiency, it is necessary to set the spiral groove 12 formed between the spiral guide ribs 11 on the guide roller to a larger width so that the spiral guide ribs can act on the corn cob. However, in the late stage of peeling, because the skin of the corn cob has been completely peeled off or most of it has been peeled off, the corn cob lacks the protection of the skin, and the spiral groove with too large a width can easily squeeze and crush the corn cob and knock the corn kernels off the corn cob, causing damage to the corn cob. If the spiral groove 12 is set to have a smaller width in order to reduce the damage to the corn cob, the lateral squeezing effect of the spiral guide ribs on the corn cob can be reduced, but at the same time, the thrust of the spiral guide ribs on the corn cob and the friction of peeling will also be reduced, which will affect the mechanical peeling efficiency. That is, it is difficult for the existing corn cob peeling machine to take into account the peeling efficiency and reduce the damage to the corn cob at the same time, and further improvement is needed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a corn cob peeling machine and a guide roller thereof which can take into account the corn cob peeling efficiency and reduce the damage during the corn cob peeling process.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a guide roller for a corn cob peeling machine, the guide roller is divided into at least two sections fixedly connected end to end along the length direction, and the surface of each section is provided with at least one spiral guide rib which spirally extends along the axial direction thereof and can form at least one spiral groove on the surface thereof;

[0007] From one end to the other end of the guide roller, in two adjacent sections, the width of the spiral groove of the next section is smaller than the width of the spiral groove of the previous section.

[0008] Furthermore, for two adjacent sections, the density of the spiral guide ribs in the circumferential direction of the next section is greater than the density of the spiral guide ribs in the circumferential direction of the previous section, so that the width of the spiral groove of the next section is smaller than the width of the spiral groove of the previous section.

[0009] Furthermore, the guide roller is provided with two sections along the length direction, namely a first peeling section and a second peeling section, and the width of the spiral groove of the second peeling section is smaller than the width of the spiral groove of the first peeling section.

[0010] Furthermore, the width of the spiral groove of the first peeling section is 50-70 mm, and the width of the spiral groove of the second peeling section is 20-40 mm.

[0011] Furthermore, the spiral grooves of the first peeling section and the spiral grooves of the second peeling section are both provided with convex strips for auxiliary peeling.

[0012] Further, the convex strips of the first peeling section are arranged along the axial direction thereof, and the convex strips of the second peeling section are arranged along the spiral extension direction of the spiral groove of the second peeling section.

[0013] Furthermore, the convex strips of the first peeling section are welded from threaded steel strips, and the convex strips of the second peeling section are plastic strips with a smooth surface.

[0014] Furthermore, the convex strips of the second peeling section are made of polyurethane material.

[0015] Furthermore, the bottom surface of the spiral groove of the first peeling section is transitioned to the side edges, and the bottom surface of the spiral groove of the second peeling section is transitioned to the side smoothly.

[0016] Furthermore, the helix angle of the spiral groove of the second peeling section is greater than the helix angle of the spiral groove of the first peeling section.

[0017] Furthermore, the helix angle of the spiral groove of the first peeling section is 45° to 65°, and the helix angle of the spiral groove of the second peeling section is 65° to 75°.

[0018] A corn cob peeling machine comprises a peeling bin, wherein a feed hopper is provided at one end of the peeling bin, and a discharge port is provided at the other end. The above-mentioned corn cob peeling machine guide roller is provided in the peeling bin, and from the feed hopper setting end of the peeling bin to the discharge port setting end thereof, of two adjacent sections of the guide roller, the width of the spiral groove of the lower section is smaller than the width of the spiral groove of the upper section.

[0019] The beneficial effects of the present invention are as follows: the corn cob peeling machine and its guide roller of the present invention divide the guide roller into at least two section parts which are fixedly connected end to end, and the surface of each section part is provided with a spiral groove 12 which spirally extends along its axial direction, from one end of the peeling bin where the feed hopper 21 is set to the other end where the discharge port 22 is set, for two adjacent sections, the width of the spiral groove 12 of the next section part is smaller than the width of the spiral groove 12 of the previous section part, so that the spiral groove 12 of appropriate width can be arranged in the corresponding section part according to each peeling stage of the corn cob, which can not only take into account the corn cob peeling efficiency, but also reduce the damage to the corn cob, and can improve the competitiveness of the peeling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the guide roller of the prior art;

[0021] Figure 2 It is a schematic diagram of the guide roller structure of the present invention;

[0022] Figure 3 is a cross-sectional view of a second peeling section;

[0023] Figure 4 is a cross-sectional view of the first peeling section

[0024] Figure 5 It is a structural schematic diagram of a corn cob peeling machine of the present invention;

[0025] Figure 6 Schematic diagram of guide roller arrangement;

[0026] As shown in the figure: guide roller 1, peeling bin 2, spiral guide rib 11, spiral groove 12, first peeling section 13, second peeling section 14, convex strip 15, feed hopper 21, discharge port 22. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] like Figure 2 As shown, the guide roller of the corn cob peeling machine of the present invention, the guide roller 1 is divided into at least two section parts fixedly connected end to end along the length direction, and the surface of each section part is provided with at least one spiral guide rib 11 which extends spirally along its axial direction and can form at least one spiral groove 12 on its surface; from one end to the other end of the guide roller 1, between two adjacent sections, the width of the spiral groove 12 of the next section part is smaller than the width of the spiral groove 12 of the previous section part.

[0029] Specifically, two adjacent sections can be connected end to end by welding or bolting. Of course, the two sections can also be an integral structure.

[0030] In the present invention, the specific number of sections of the guide roller 1 is set according to how many stages the corn peeling is divided into. For example, in some embodiments, the guide roller 1 is provided with three sections to divide the corn peeling into three stages; in some embodiments, the guide roller 1 is provided with four sections to divide the corn peeling into four stages. In the present invention, preferably, Figure 2 As shown, the guide roller 1 is provided with two sections along the length direction, namely, a first peeling section 13 and a second peeling section 14, so as to divide the corn peeling into two stages. The width of the spiral groove 12 of the second peeling section 14 is smaller than the width of the spiral groove 12 of the first peeling section 13. The first peeling section 13 is used to guide and preliminarily peel the corn cob to remove most of the loose and thick skins attached to the surface, and the second peeling section 14 is used to further peel the corn cob to remove a small amount of tightly attached and thin skins that may not be removed from the surface.

[0031] The specific number of spiral grooves 12 on each section can be set as needed. On the premise of meeting the width requirements of the spiral grooves 12, the more spiral grooves 12 are arranged in the circumferential direction of each section, the better the peeling efficiency and effect of the peeling machine. Figures 2 to 4 As shown, in the two adjacent sections, a spiral guide rib 11 is provided on the circumference of the first peeling section 13, thereby forming a spiral groove 12 on the first peeling section 13, and three spiral guide ribs 11 are provided on the circumference of the second peeling section 14, thereby forming three spiral grooves 12 on its surface. For the two adjacent sections, if the spiral guide ribs on the upper and lower sections are the same and there is only one spiral guide rib, the width of the spiral groove 12 of the next section can be made smaller than the width of the spiral groove 12 of the previous section by reducing the pitch of the spiral guide rib 11 on the next section. Figures 2 to 4As shown, in the present invention, the arrangement density of the spiral guide ribs 11 of the next segment part in the circumferential direction of the segment part is greater than the arrangement density of the spiral guide ribs 11 of the previous segment part in the circumferential direction of the segment part, so that the width of the spiral groove 12 of the next segment part is smaller than the width of the spiral groove 12 of the previous segment part. The arrangement density of the spiral guide ribs is calculated as: the number of spiral guide ribs arranged on the circumference of the segment part / the circumference of the segment part.

[0032] like Figure 5 and Figure 6 As shown, when the guide roller of the present invention is installed, the installation direction of the guide roller 1 is: from the end where the feed hopper 21 of the peeling bin 2 is set to the end where the discharge port 22 is set, the width of the spiral groove 12 of the next section of the guide roller 1 is smaller than the width of the spiral groove 12 of the previous section. That is, the end with the largest width of the spiral groove 12 of the guide roller is installed at the end close to the feed hopper 21 of the peeling bin 2, and the end with the smallest width of the spiral groove 12 of the guide roller is installed at the end close to the discharge port 22 of the peeling bin 2. The guide roller of the present invention is divided into at least two sections that are fixedly connected end to end, and the surface of each section is provided with a spiral groove 12 that extends spirally along its axial direction. From one end to the other end of the guide roller 1, the width of the spiral groove 12 of the next section is smaller than the width of the spiral groove 12 of the previous section, so that the spiral groove 12 of appropriate width can be correspondingly set in the corresponding section according to each peeling stage of the corn cob. For example, in the initial stage of peeling, the husks of corn cobs are relatively large and thick, and the husks can protect the corn cobs. In order to straighten and peel the corn cobs that enter the peeling bin in a disorderly manner as quickly as possible and improve the peeling efficiency, the spiral grooves 12 of the sections corresponding to the initial stage can be set at a larger width. In order to reduce the damage to the corn cobs, the spiral grooves 12 of the sections in the subsequent stages can be gradually set at a smaller width, making it increasingly difficult for the corn cobs to fit into the spiral grooves 12. In this way, the lateral extrusion effect of the spiral guide ribs 11 of the subsequent sections on the corn becomes smaller and smaller, so as to reduce the occurrence of the corn cobs being squeezed and crushed and the corn kernels being knocked off the corn cobs. This can take into account the peeling efficiency of the corn cobs, reduce the damage to the corn cobs, and improve the competitiveness of the product.

[0033] The height of the spiral guide rib 11 is the same as that of the existing spiral guide rib 11, preferably 1 mm to 8 mm. In the embodiment of the present invention, the height of the spiral guide rib 11 is 5 mm.

[0034] It can be understood that the width of the spiral groove 12 of each section can be obtained through actual experiments according to the corresponding positions of each section in the peeling bin after the guide roller is installed. Through experiments, when the guide roller is divided into two sections, the width of the spiral groove 12 of the first peeling section 13 is a, and the value range of a is preferably 50-70mm, which has a good effect on the correction of the corn cob and the rapid initial peeling of the corn cob. The width of the spiral groove 12 of the second peeling section 14 is b, and the value range of b is preferably 20-40mm. While ensuring the further peeling of the corn cob to ensure the peeling effect, it also has a better effect on reducing the damage to the corn cob. In the embodiment of the present invention, a=65mm, b=30mm.

[0035] It should be noted that the length of each section in the present invention can be obtained through experiments according to the conditions of the corresponding peeling machine, such as the rotation speed of the guide roller when it is working.

[0036] like Figure 2 As shown, in order to further improve the peeling effect, the spiral groove 12 of the first peeling section 13 and the spiral groove 12 of the second peeling section 14 are both provided with convex strips 15 for auxiliary peeling. The convex strips 15 can increase the force of the guide roller on the corn cob skin, thereby improving the peeling effect. The setting direction of the convex strips 15 can be any direction. In the present invention, preferably, the convex strips 15 of the first peeling section 13 are arranged along its axial direction, and the convex strips 15 of the second peeling section 14 are arranged along the spiral extension direction of the spiral groove 12 of the second peeling section 14. The convex strips 15 of the first peeling section 13 are arranged along its axial direction, which can not only improve the initial peeling effect, but also have a certain positive effect on the corn cob correction. In the later stage of corn cob peeling, the reduced width of the spiral groove 12 of the second peeling section will reduce the effect of the spiral guide rib 11 on the corn, and the surface of the corn cob is smoother in the later stage, so there will be a problem of reduced thrust of the spiral guide rib 11 on the corn cob, which affects the mechanical efficiency. The present invention arranges the convex strip 15 of the second peeling section 14 along the spiral extension direction of the spiral groove 12 of the second peeling section 14, which not only takes into account the later peeling effect, but also generates a thrust on the corn cob toward the discharge port, thereby compensating for part of the thrust lost in the second peeling section due to the reduction in the width of the spiral groove 12, which is beneficial to improving the mechanical peeling efficiency.

[0037] In the present invention, in order to increase the thrust on the corn cob in the later stage, preferably, of the two adjacent sections, the circumferential arrangement density of the spiral guide ribs 11 in the next section is greater than the circumferential arrangement density of the spiral guide ribs 11 in the previous section, so that the width of the spiral groove 12 in the next section is smaller than the width of the spiral groove 12 in the previous section.

[0038] The convex strips 15 can be made of various materials, such as steel, plastic, rubber, etc. In the embodiment of the present invention, the convex strips 15 of the first peeling section 13 are welded by threaded steel bars, and the convex strips 15 of the second peeling section 14 are plastic strips. The convex strips 15 of the first peeling section 13 are welded by threaded steel bars, which have high hardness, and have lines on the surface and high roughness, so that the corn cobs can be preliminarily peeled better. The convex strips 15 of the second peeling section 14 are plastic strips with smooth surface. In the embodiment of the present invention, the convex strips 15 of the second peeling section 14 are specifically made of polyurethane material. The plastic strip has a relatively low hardness and a smooth surface, which is conducive to protecting the corn cob and can further reduce the damage to the corn cob. In order to better protect the corn cob, the edges of the plastic strip can be rounded. The plastic strip can be set on the guide roller by screw connection.

[0039] The helical lead angle of the spiral groove 12 of the second peeling section 14 may be the same as or different from the helical lead angle of the spiral groove 12 of the second peeling section 14. In order to compensate for the thrust lost in the second peeling section due to the reduction in the width of the spiral groove 12, which is beneficial to improving the mechanical peeling efficiency, in the present invention, preferably, the helical lead angle of the spiral groove 12 of the second peeling section 14 is greater than the helical lead angle of the spiral groove 12 of the first peeling section 13. Through experiments, in the present invention, the helical lead angle of the spiral groove 12 of the first peeling section 13 is 45 to 65°, which is beneficial to its effect on the corn cob and is beneficial to the early peeling of the corn cob. When the helical lead angle of the spiral groove 12 of the second peeling section 14 is 65° to 75°, it takes into account the peeling of the corn cob in the later stage, which is beneficial to the rapid discharge of the corn cob in the later stage. In the embodiment of the present invention, the helical angle of the spiral groove 12 of the first peeling section 13 is 50°, and the helical angle of the spiral groove 12 of the second peeling section 14 is 70°.

[0040] In the present invention, Figure 4 and Figure 5 As shown, in order to further ensure the initial peeling effect of the corn cob, preferably, the bottom surface and the side edges of the spiral groove 12 of the first peeling section 13 are transitioned to increase the lateral extrusion force of the spiral guide rib 11 of the section on the corn cob and the peeling friction; in order to better protect the corn cob and reduce the damage to the corn cob, preferably, the bottom surface and the side of the spiral groove 12 of the second peeling section 14 are smoothly transitioned to reduce the lateral extrusion force of the spiral guide rib 11 of the section on the corn cob. In the real-time embodiment of the present invention, the spiral groove 12 of the first peeling section 13 is formed by a spirally extended circular cross-section steel bar welded to the first peeling section 13.

[0041] like Figure 5 and Figure 6As shown, the present invention also provides a corn cob peeling machine, including a peeling bin 2, wherein a feed hopper 21 is provided at one end of the peeling bin 2, and a discharge port 22 is provided at the other end. The above-mentioned corn cob peeling machine guide roller is provided in the peeling bin 2, and the guide roller of the corn cob peeling machine is specifically arranged as follows: from the feed hopper 21 setting end of the peeling bin 2 to the discharge port 22 setting end thereof, of the two adjacent sections of the guide roller 1, the width of the spiral groove 12 of the lower section is smaller than the width of the spiral groove 12 of the upper section.

Claims

1. Corn cob peeling machine guide roller, characterized by: The guide roller (1) is divided into at least two sections that are fixedly connected end to end along the length direction, and the surface of each section is provided with at least one spiral guide rib (11) that extends spirally along the axial direction thereof and can form at least one spiral groove (12) on the surface thereof; From one end to the other end of the guide roller (1), in two adjacent sections, the width of the spiral groove (12) of the next section is smaller than the width of the spiral groove (12) of the previous section.

2. The guide roller of the corn cob peeling machine according to claim 1, characterized in that: For two adjacent sections, the arrangement density of the spiral guide ribs (11) in the circumferential direction of the next section is greater than the arrangement density of the spiral guide ribs (11) in the circumferential direction of the previous section, so that the width of the spiral groove (12) in the next section is smaller than the width of the spiral groove (12) in the previous section.

3. The guide roller of the corn cob peeling machine according to claim 2, characterized in that: The guide roller (1) is provided with two sections along the length direction, namely a first peeling section (13) and a second peeling section (14); the width of the spiral groove (12) of the second peeling section (14) is smaller than the width of the spiral groove (12) of the first peeling section (13).

4. The guide roller of the corn cob peeling machine according to claim 3, characterized in that: The width of the spiral groove (12) of the first peeling section (13) is 50 to 70 mm, and the width of the spiral groove (12) of the second peeling section (14) is 20 to 40 mm.

5. The guide roller of the corn cob peeling machine according to claim 3 or 4, characterized in that: The spiral groove (12) of the first peeling section (13) and the spiral groove (12) of the second peeling section (14) are both provided with convex strips (15) for auxiliary peeling.

6. The guide roller of the corn cob peeling machine according to claim 5, characterized in that: The convex strips (15) of the first peeling section (13) are arranged along its axial direction, and the convex strips (15) of the second peeling section (14) are arranged along the spiral extension direction of the spiral groove (12) of the second peeling section (14).

7. The guide roller of the corn cob peeling machine according to claim 5, characterized in that: The convex strips (15) of the first peeling section (13) are welded from threaded steel strips.

8. The guide roller of the corn cob peeling machine according to claim 5, characterized in that: The convex strip (15) of the second peeling section (14) is a plastic strip with a smooth surface.

9. The guide roller of the corn cob peeling machine according to claim 3, characterized in that: The bottom surface and the side edges of the spiral groove (12) of the first peeling section (13) are transitioned, and the bottom surface and the side edges of the spiral groove (12) of the second peeling section (14) are transitioned smoothly.

10. The guide roller of the corn cob peeling machine according to claim 3 or 4, characterized in that: The helical lead angle of the spiral groove (12) of the second peeling section (14) is greater than the helical lead angle of the spiral groove (12) of the first peeling section (13).

11. The guide roller of the corn cob peeling machine according to claim 10, characterized in that: The helical lead angle of the spiral groove (12) of the first peeling section (13) is 45° to 65°, and the helical lead angle of the spiral groove (12) of the second peeling section (14) is 65° to 75°.

12. Corn cob peeling machine, characterized by: It comprises a peeling bin (2), one end of the peeling bin (2) is provided with a feed hopper (21), and the other end is provided with a discharge port (22), and the peeling bin (2) is provided with a guide roller of a corn cob peeling machine as described in any one of claims 1 to 11, and from the end where the feed hopper (21) of the peeling bin (2) is provided to the end where the discharge port (22) is provided, of the two adjacent sections of the guide roller (1), the width of the spiral groove (12) of the lower section is smaller than the width of the spiral groove (12) of the upper section.

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