Corn cob huller and guide roller thereof

Abstract

The utility model provides a corn cob huller and a guide roller of the corn cob huller, which not only can give consideration to the corn cob hulling efficiency, but also can reduce the damage in the 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. According to the utility model, the competitiveness of the peeling machine can be improved.

Description

Technical Field

[0001] This utility model relates to the field of corn cob peeling technology, specifically a corn cob peeling machine and its guide roller. Background Technology

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

[0003] Chinese patent application CN201220542380.8 discloses a corn hulling machine, including a frame on which a motor and a hulling chamber are mounted. The hulling chamber has a feed hopper on one side and a discharge port on the other. Two parallel hulling rubber rollers with fish-scale-like protrusions on their surfaces are rotatably mounted inside the hulling chamber. Two parallel guide rollers are positioned between the two hulling rubber rollers, each with spiral guide ribs. The output shaft of the motor is connected to the hulling rubber rollers and guide rollers via belts. A baffle plate is hinged above the hulling rubber rollers and guide rollers inside the hulling chamber. This threshing machine, under the action of the hulling rubber rollers and their cooperating guide rollers, rolls the corn husks between the adjacent hulling rubber rollers and guide rollers, where they are then torn off by friction, improving hulling efficiency and reducing manual labor intensity. The spiral guide ribs can act on the corn cobs, straightening them (making them follow the direction of the guide rollers) and pushing them towards the discharge port of the peeling chamber. They can also generate lateral extrusion force and peeling friction on the corn cobs.

[0004] like Figure 1 As shown, in existing guide rollers, the spiral guide ribs are uniformly arranged along the length of the guide roller, resulting in a uniform width of the spiral grooves 12 formed by the spiral guide ribs. In practice, the applicant found a positive correlation between the width of the spiral grooves 12 and the damage to the corn cobs; that is, the wider the spiral grooves, the greater the damage to the corn cobs during the peeling process. The existing guide roller structure, with its uniformly arranged spiral guide ribs along the length of the guide roller, requires a larger spiral groove 12 formed between the spiral guide ribs 11 to facilitate the spiral guide ribs' action on the corn cobs. However, in the later stages of peeling, because the corn cobs have been completely or mostly peeled off, the corn cobs lack the protection of the peel. An excessively wide spiral groove can easily crush the corn cobs and knock off the kernels, causing damage to the corn cobs. If the spiral groove 12 is made narrower to reduce damage to the corn cob, the lateral squeezing effect of the spiral guide ribs on the corn cob can be reduced. However, this also reduces the discharge thrust and peeling friction of the spiral guide ribs on the corn cob, thus affecting the mechanical peeling efficiency. In other words, the existing corn cob peeling machine cannot simultaneously achieve peeling efficiency and reduce corn cob damage, and further improvements are needed. The utility model discloses a corn cob peeling machine and a guide roller thereof

[0005] The utility model discloses a corn cob peeling machine and a guide roller thereof

[0006] The utility model discloses a corn cob peeling machine and a guide roller thereof

[0007] The width of the spiral groove of the next section is less than the width of the spiral groove of the previous section.

[0008] Further, the setting density of the spiral guide rib of the next section in the circumferential direction of the section is greater than the setting density of the spiral guide rib of the previous section in the circumferential direction of the section, so that the width of the spiral groove of the next section is less than the width of the spiral groove of the previous section.

[0009] Further, the guide roller is provided with two section parts in the length direction, which are a first peeling section part and a second peeling section part, and the width of the spiral groove of the second peeling section part is less than the width of the spiral groove of the first peeling section part.

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

[0011] Further, the first peeling section part and the second peeling section part are both provided with protrusions for assisting peeling.

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

[0013] Further, the protrusions of the first peeling section part are welded by threaded steel strips, and the protrusions of the second peeling section part are plastic strips with smooth surfaces.

[0014] Further, the protrusions of the second peeling section part are polyurethane materials.

[0015] Further, the bottom surface of the spiral groove of the first peeling section part is smoothly connected with the side surface, and the bottom surface of the spiral groove of the second peeling section part is smoothly connected with the side surface.

[0016] Further, the helix angle of the helical groove of the second peeling section part is greater than the helix angle of the helical groove of the first peeling section part.

[0017] Further, the helix angle of the helical groove of the first peeling section part is 45°-65°, and the helix angle of the helical groove of the second peeling section part is 65°-75°.

[0018] The corn cob peeling machine comprises a peeling bin, one end of the peeling bin is provided with a feeding hopper, the other end of the peeling bin is provided with a discharging port, the corn cob peeling machine guide roller is arranged in the peeling bin, and the width of the helical groove of the lower section part is smaller than the width of the helical groove of the upper section part from the feeding hopper setting end of the peeling bin to the discharging port setting end of the peeling bin.

[0019] The corn cob peeling machine and the guide roller have the following beneficial effects: the guide roller is divided into at least two section parts which are fixedly connected at the head and tail, the surface of each section part is provided with a helical groove 12 which extends along the axial direction, the width of the helical groove 12 of the lower section part is smaller than the width of the helical groove 12 of the upper section part from one end of the feeding hopper 21 to one end of the discharging port 22 of the peeling bin, and the width of the helical groove 12 of the lower section part is smaller than the width of the helical groove 12 of the upper section part. Thus, the helical groove 12 with a proper width can be arranged in the corresponding section part according to the peeling stage of the corn cob, the peeling efficiency of the corn cob can be considered, the damage of the corn cob can be reduced, and the competitiveness of the peeling machine can be improved. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 2 It is a structural schematic view of the guide roller of the prior art;

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

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

[0024] Figure 5 It is a structural schematic view of the corn cob peeling machine of the prior art;

[0025] Figure 6 It is a structural schematic view of the corn cob peeling machine of the prior art;

[0026] As shown in the drawings: the guide roller 1, the peeling bin 2, the helical rib 11, the helical groove 12, the first peeling section part 13, the second peeling section part 14, the convex strip 15, the feeding hopper 21 and the discharging port 22. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 2 As shown, the guide roller of the corn cob peeling machine of this utility model is divided into at least two sections that are fixedly connected end to end along the length direction. Each section has at least one spiral guide rib 11 that extends spirally along its axis and can form at least one spiral groove 12 on its surface. From one end of the guide roller 1 to the other end, 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.

[0029] Specifically, two adjacent sections can be connected end to end by welding or bolting; of course, they can also be a single integrated structure.

[0030] In this invention, the specific number of sections on the guide roller 1 is set according to the number of stages in which the corn peeling is divided. For example, in some embodiments, the guide roller 1 has three sections to divide the corn peeling into three stages; in some embodiments, the guide roller 1 has four sections to divide the corn peeling into four stages. In this invention, preferably... Figure 2 As shown, the guide roller 1 has two sections along its length: a first peeling section 13 and a second peeling section 14, to divide the corn peeling process into two stages. The width of the spiral groove 12 in the second peeling section 14 is smaller than the width of the spiral groove 12 in the first peeling section 13. The first peeling section 13 is used to guide the corn cob and perform preliminary peeling to remove most of the loosely attached and thicker husks from the surface. The second peeling section 14 is used to further peel the corn cob to remove any remaining, tightly attached and thinner husks that may not have been removed.

[0031] The specific number of spiral grooves 12 on each section can be set as needed. Under the premise of meeting the width requirements of the spiral grooves 12, the more spiral grooves 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 two adjacent peeling sections, the first peeling section 13 has a spiral guide rib 11 in the circumferential direction, thereby forming a spiral groove 12 on the first peeling section 13. The second peeling section 14 has three spiral guide ribs 11 in the circumferential direction, thereby forming three spiral grooves 12 on its surface. If the spiral guide ribs on the upper and lower sections are the same and there is only one, the width of the spiral groove 12 in the lower section can be made smaller than the width of the spiral groove 12 in the upper section by reducing the pitch of the spiral guide rib 11 on the lower section. Figures 2 to 4As shown, in the utility model, the setting density of the spiral-shaped reinforcing bars 11 of the lower section part in the circumferential direction of the section part is greater than the setting density of the spiral-shaped reinforcing bars 11 of the upper section part in the circumferential direction of the section part, so that the width of the spiral groove 12 of the lower section part is smaller than the width of the spiral groove 12 of the upper section part. The setting density of the spiral-shaped reinforcing bars is calculated as follows: the number of spiral-shaped reinforcing bars set in the circumferential direction of the section part / the circumference of the section part.

[0032] As shown, Figure 5 and Figure 6 As shown, when the guide roller is installed, the installation direction of the guide roller 1 is from the feeding hopper 21 setting end of the peeling bin 2 to the discharge port 22 setting end, the width of the spiral groove 12 of the lower section part is smaller than the width of the spiral groove 12 of the upper section part. That is, the end of the guide roller spiral groove 12 with the maximum width is installed close to the end of the feeding hopper 21 of the peeling bin 2, and the end of the guide roller spiral groove 12 with the minimum width is installed close to the end of the discharge port 22 of the peeling bin 2. The guide roller of the utility model is divided into at least two section parts fixedly connected at the head and tail, the surface of each section part is provided with a spiral groove 12 extending in the axial direction, the width of the spiral groove 12 of the lower section part is smaller than the width of the spiral groove 12 of the upper section part from one end of the guide roller 1 to the other end, so that the spiral groove 12 with a suitable width can be set in the corresponding section part according to each peeling stage of the corn cob. For example, in the initial stage of peeling, the corn cob has a lot of thick skin, the skin can protect the corn cob, in order to quickly guide the corn cobs entering the peeling bin in order and peel them, improve the peeling efficiency, the spiral groove 12 of the section part corresponding to the initial stage can be set to a larger width, and then in order to reduce the damage to the corn cob, the spiral groove 12 of the section part of the subsequent stage can be gradually set to a smaller width, so that the corn cob is more and more difficult to be clamped into the spiral groove 12, so that the lateral extrusion effect of the spiral-shaped reinforcing bars 11 of the subsequent section part on the corn is smaller and smaller, so as to reduce the situation that the corn cob is extruded and broken and the corn kernels are knocked off, so that the peeling efficiency of the corn cob can be considered and the damage to the corn cob can be reduced, and the product competitiveness can be improved.

[0033] The height of the spiral-shaped reinforcing bars 11 is the same as the height of the existing spiral-shaped reinforcing bars 11, which is preferably 1mm-8mm. In the embodiment of the utility model, the height of the spiral-shaped reinforcing bars 11 is 5mm.

[0034] It is understandable that the width of the spiral groove 12 in each section can be determined through actual experiments based on the corresponding position of each section in the peeling chamber after the guide roller is installed. Experiments show that when the guide roller is divided into two sections, the width of the spiral groove 12 in the first peeling section 13 is 'a', preferably within the range of 50-70 mm. This provides good guidance for the corn cob and facilitates rapid initial peeling. The width of the spiral groove 12 in the second peeling section 14 is 'b', preferably within the range of 20-40 mm. This ensures further peeling of the corn cob while minimizing damage. In this embodiment, a = 65 mm and b = 30 mm.

[0035] It should be noted that the length of each section in this invention can be determined through experiments based on the specific conditions of the peeling machine, such as the rotational speed of the guide rollers.

[0036] like Figure 2 As shown, to further improve the peeling effect, both the spiral groove 12 of the first peeling section 13 and the spiral groove 12 of the second peeling section 14 are provided with auxiliary peeling protrusions 15. The protrusions 15 can increase the force exerted by the guide roller on the corn cob husk, thereby improving the peeling effect. The direction of the protrusions 15 can be arbitrary. In this invention, preferably, the protrusions 15 of the first peeling section 13 are arranged along its axial direction, and the protrusions 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 arrangement of the protrusions 15 of the first peeling section 13 along its axial direction not only improves the initial peeling effect but also has a positive effect on guiding the corn cob. In the later stages of corn cob peeling, the reduced width of the spiral groove 12 in the second peeling section leads to a decrease in the effect of its spiral guide ribs 11 on the corn. Furthermore, the smoother surface of the corn cob in the later stages results in a decrease in the thrust of the spiral guide ribs 11 on the corn cob, affecting mechanical efficiency. In this invention, the protrusion 15 of the second peeling section 14 is arranged along the spiral extension direction of the spiral groove 12 of the second peeling section 14. This not only takes into account the peeling effect in the later stage, but also generates a thrust towards the discharge port on the corn cob. This can make up for the part of the thrust lost by the second peeling section due to the reduction of the width of the spiral groove 12, which is beneficial to improving the mechanical peeling efficiency.

[0037] In this invention, in order to increase the thrust on the corn cob in the later stage, preferably, in two adjacent sections, the spiral guide ribs 11 of the next section have a higher circumferential density than the spiral guide ribs 11 of the previous section, so that 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.

[0038] The convex strip 15 can be made of various materials, such as steel, plastic, rubber, etc. In the embodiment of the utility model, the convex strip 15 of the first peeling section 13 is welded by a threaded steel strip, and the convex strip 15 of the second peeling section 14 is a plastic strip. The convex strip 15 of the first peeling section 13 is welded by a threaded steel strip, which has high hardness and a rough surface with large roughness, so that the corn cob can be better preliminarily peeled. The convex strip 15 of the second peeling section 14 is a plastic strip, and the surface is smooth. In the embodiment of the utility model, the convex strip 15 of the second peeling section 14 is made of polyurethane material. The plastic strip has relatively low hardness and a smooth surface, which is beneficial to protect the corn cob and 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 arranged on the guide roller in a screw connection manner.

[0039] The helix angle of the spiral groove 12 of the second peeling section 14 can be the same as or different from the helix angle of the spiral groove 12 of the second peeling section 14. In order to compensate for the loss of thrust due to the decrease in the width of the spiral groove 12 of the second peeling section, which is beneficial to improve the mechanical peeling efficiency, in the utility model, preferably, the helix angle of the spiral groove 12 of the second peeling section 14 is greater than the helix angle of the spiral groove 12 of the first peeling section 13. Through experiments, in the utility model, the helix angle of the spiral groove 12 of the first peeling section 13 is 45-65°, which is beneficial to the action on the corn cob and the preliminary peeling of the corn cob. When the helix angle of the spiral groove 12 of the second peeling section 14 is 65°-75°, both the later peeling of the corn cob and the rapid discharge of the corn cob in the later stage are considered. In the embodiment of the utility model, the helix angle of the spiral groove 12 of the first peeling section 13 is 50°, and the helix angle of the spiral groove 12 of the second peeling section 14 is 70°

[0040] As shown in the utility model, Figure 4 and Figure 5 In order to further ensure the preliminary peeling effect of the corn cob, preferably, the bottom surface and the side edge of the spiral groove 12 of the first peeling section 13 are transitioned, so as to increase the lateral extrusion force and the peeling friction of the spiral-shaped guide rib 11 of the section on the corn cob. In order to better protect the corn cob and reduce the damage to the corn cob, preferably, the bottom surface and the side surface of the spiral groove 12 of the second peeling section 14 are smoothly transitioned, so as to reduce the lateral extrusion force of the spiral-shaped guide rib 11 of the section on the corn cob. In the embodiment of the utility model, the spiral groove 12 of the first peeling section 13 is formed by a spiral-shaped circular cross-section steel bar welded on the first peeling section 13.

[0041] As shown in the utility model, Figure 5 and Figure 6As shown, the utility model still provides a kind of corn cob peeling machine, including peeling bin 2, the one end of peeling bin 2 is equipped with feed hopper 21, and the other end is equipped with discharge port 22, the peeling bin 2 is provided with above-mentioned corn cob peeling machine guide roller, and the specific setting mode of corn cob peeling machine guide roller is, from the feed hopper 21 setting end of the peeling bin 2 to its discharge port 22 setting end, the adjacent two section parts of guide roller 1, the width of helical groove 12 of lower section part is less than the width of helical groove 12 of upper section part.

Claims

1. A corn sheller guide roll characterized by: The guide roller (1) is divided into at least two fixedly connected section parts along the length direction, the surface of each section part is provided with at least one spiral rib (11) extending along the axial direction and forming at least one spiral groove (12) on the surface; The width of the spiral groove (12) of the next section part is smaller than that of the previous section part from one end to the other end of the guide roller (1).

2. The corn cob unscrambler guide roller of claim 1 wherein: The setting density of the spiral rib (11) of the next section part is greater than that of the previous section part in the circumferential direction of the section part, so that the width of the spiral groove (12) of the next section part is smaller than that of the previous section part.

3. The corn cob unscrambler guide roller of claim 2 wherein: The guide roller (1) is provided with two section parts along the length direction, which are the first peeling section part (13) and the second peeling section part (14), and the width of the spiral groove (12) of the second peeling section part (14) is smaller than that of the first peeling section part (13).

4. The corn cob unscrambler guide roller of claim 3 wherein: The width of the spiral groove (12) of the first peeling section part (13) is 50-70 mm, and the width of the spiral groove (12) of the second peeling section part (14) is 20-40 mm.

5. A corn cob unscrambler guide roller as claimed in claim 3 or 4 wherein: The first peeling section part (13) and the second peeling section part (14) are both provided with protrusions (15) for assisting peeling.

6. The corn cob unscrambler guide roller of claim 5 wherein: The protrusions (15) of the first peeling section part (13) are arranged along the axial direction, and the protrusions (15) of the second peeling section part (14) are arranged along the spiral extension direction of the spiral groove (12) of the second peeling section part (14).

7. The corn cob unscrambler guide roller of claim 5 wherein: The protrusions (15) of the first peeling section part (13) are welded from threaded steel strips.

8. The corn cob unscrambler guide roll of claim 5 wherein: The protrusions (15) of the second peeling section part (14) are plastic strips with smooth surfaces.

9. The corn cob unscrambler guide roll of claim 3 wherein: The bottom surface and the side surface of the spiral groove (12) of the first peeling section part (13) are angularly connected, and the bottom surface and the side surface of the spiral groove (12) of the second peeling section part (14) are smoothly connected.

10. The corn cob unscrambler guide roller of claim 3 or 4, wherein: The helix angle of the spiral groove (12) of the second peeling section part (14) is greater than that of the first peeling section part (13).

11. The corn cob unscrambler guide roller of claim 10 wherein: The helix angle of the spiral groove (12) of the first peeling section part (13) is 45-65°, and the helix angle of the spiral groove (12) of the second peeling section part (14) is 65-75°.

12. A corn cob peeler characterized by: The peeling machine for corn cob includes a peeling bin (2), one end of the peeling bin (2) is provided with a feeding hopper (21), the other end is provided with a discharging port (22), and the peeling bin (2) is provided with the guide roller for corn cob peeling machine according to any one of claims 1-11, and the width of the spiral groove (12) of the next section part is smaller than that of the previous section part from the feeding hopper (21) to the discharging port (22) of the peeling bin (2).

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