Corn cob huller

Abstract

The utility model provides a corn cob huller, aims to solve the problem that the production efficiency of the huller is affected due to the fact that the discharging speed of corn cobs is low in the second-stage hulling process, and relates to the technical field of agricultural machinery. The corn cob huller comprises a hulling bin, at least one hulling unit is installed in the hulling bin, and each hulling unit comprises a first-stage roller set and a second-stage roller set arranged at the rear end of the first-stage roller set. The distance between the top plate of the peeling bin and the second-stage roller set is larger than the distance between the top plate of the peeling bin and the first-stage roller set. According to the utility model, the peeling efficiency of the corn cob peeling machine can be improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically a corn cob peeling machine. Background Technology

[0002] After the corn cobs are harvested, they need to be hulled before they can be kerneled. The traditional method of manual hulling is not only time-consuming and labor-intensive, but also inefficient and consumes a significant amount of manpower, impacting production efficiency.

[0003] To address the time-consuming and labor-intensive problem of manual corn peeling, patent application number CN201220542380.8 discloses a high-efficiency corn peeling machine. This machine includes a frame, on which a motor and a peeling chamber are mounted. The peeling chamber has a feed hopper on one side and a discharge port on the other. Two sets of peeling units are rotatably mounted inside the peeling chamber. Each set includes a guide roller and a peeling roller positioned on one side of the guide roller for peeling. The guide roller has spiral guide ribs, and the peeling roller has fish-scale-like protrusions. The motor's output shaft is connected to both the peeling roller and the guide roller via a belt. To facilitate the movement of the peeling roller and adjustment of the clearance between it and the guide roller, some corn peeling machines also use the peeling roller as a passive roller, meaning the motor is not directly connected to it. For example, patent application number CN201810169941.6 discloses a chain-driven peeling mechanism for a corn peeling machine. To facilitate the manufacturing of the peeling chamber shell, existing peeling machines have a design where the distance between the upper shell of the peeling chamber and the peeling unit is the same or gradually decreases from the feeding end to the discharging end.

[0004] The corn cob peeling process can be roughly divided into two stages: the first stage removes most of the husk from the corn cob; the second stage removes a small amount of strongly adhering residual husk. In the second stage, because there is less husk on the corn cob, and the remaining residual husk is the innermost layer with better adhesion and a smoother surface, the surface friction coefficient of the corn cob decreases. This reduces the force exerted by the peeling unit on the corn cob. However, existing peeling machines have a design where the distance between the upper shell of the peeling chamber and the peeling unit is the same or gradually decreases from the inlet to the outlet, resulting in a slower discharge speed in the second stage, which affects the overall production efficiency of the peeling machine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a corn cob peeling machine to solve the problem that the slow discharge speed of corn cobs during the second stage of peeling affects the production efficiency of the peeling machine.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a corn cob peeling machine, including a peeling chamber, wherein at least one peeling unit is installed in the peeling chamber, the peeling unit includes a first stage roller group and a second stage roller group disposed at the rear end of the first stage roller group, the first stage roller group includes a first stage guide roller and a first stage peeling roller disposed on one side of the first stage guide roller for peeling, the second stage roller group includes a second stage guide roller and a second stage peeling roller disposed on one side of the second stage guide roller for peeling, the surfaces of the second stage guide roller and the first stage guide roller are provided with spiral guide ribs, the front end of the second stage guide roller is drivenly connected to the rear end of the first stage guide roller, and the distance from the top plate of the peeling chamber to the second stage roller group is greater than the distance from the top plate of the peeling chamber to the first stage roller group.

[0007] Furthermore, the top plate of the peeling chamber is a flat plate, and the setting height of the second stage roller group is less than the setting height of the first stage roller group.

[0008] Furthermore, the front end of the second-stage guide roller is connected to the rear end of the first-stage guide roller via a belt, chain, or gear drive, and a cover plate is provided at the drive connection between the second-stage guide roller and the first-stage guide roller.

[0009] Furthermore, the width of the spiral groove formed by the guide rib on the second-stage guide roller is smaller than the width of the spiral groove formed by the guide rib on the first-stage guide roller.

[0010] Furthermore, the width of the spiral groove formed by the guide ribs on the first-stage guide roller ranges from 50mm to 90mm, and the width of the spiral groove formed by the guide ribs on the second-stage guide roller ranges from 5mm to 40mm.

[0011] Furthermore, the spiral groove formed by the guide ribs on the first-stage guide roller is provided with protrusions.

[0012] Furthermore, the guide ribs on the second-stage guide roller are made of rubber.

[0013] Furthermore, the two ends of the first-stage peeling roller and the second-stage peeling roller are respectively mounted in the peeling chamber via mounting seats that can move toward or away from the first-stage guide roller. A screw for pushing the mounting seat toward the first-stage guide roller is mounted on one side of the mounting seat. The screw abuts against the mounting seat via a compressible relief spring disposed between the mounting seat and the screw.

[0014] Furthermore, the mounting base can be oscillated toward or away from the first-stage guide roller.

[0015] Furthermore, baffles are respectively provided above the first stage roller group and the second stage roller group. The front end of the baffle is hinged so that it can rotate up and down, and the rear end of the baffle is provided with a baffle spring to prevent it from rotating upward.

[0016] The beneficial effects of this utility model are as follows: In the corn cob peeling machine of this utility model, the distance from the top plate of the peeling chamber 1 to the second stage roller group 22 is greater than the distance from the top plate of the peeling chamber 1 to the first stage roller group 21, which makes the space between the second stage roller group and the shell of the peeling chamber 1 larger. As a result, the shell of the peeling chamber 1 reduces the obstruction effect on the corn cobs in the second stage, and the second stage guide roller 221 can more easily push the corn cobs towards the discharge port, making the movement speed of the corn cobs in the second stage faster and more matched with the movement speed of the corn cobs in the first stage of peeling. Therefore, the peeling efficiency of the corn cob peeling machine can be improved. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the peeling unit structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model;

[0020] Figure 4 This is another structural schematic diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the first stage peeling roller installation;

[0022] The diagram shows: peeling chamber 1, peeling unit 2, cover plate 3, mounting base 4, screw 5, relief spring 6, baffle plate 7, baffle spring 8, feed inlet 11, discharge outlet 12, first stage roller group 21, second stage roller group 22, guide rib 23, spiral groove 24, protrusion 25, first stage guide roller 211, first stage peeling roller 212, second stage guide roller 221, and second stage peeling roller 222. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 4As shown, the corn cob peeling machine of this utility model includes a peeling chamber 1. One end of the peeling chamber 1 is provided with a feed inlet 11 and the other end is provided with a discharge outlet 12. At least one set of peeling units 2 is installed in the peeling chamber 1. In this embodiment of the utility model, there are 3 sets of peeling units. The peeling unit 2 includes a first-stage roller group 21 and a second-stage roller group 22 disposed at the rear end of the first-stage roller group 21. The first-stage roller group 21 includes a first-stage guide roller 211 and a first-stage peeling roller 212 disposed on one side of the first-stage guide roller 211 for peeling. The second-stage roller group 22 includes a second-stage guide roller 221 and a second-stage peeling roller 222 disposed on one side of the second-stage guide roller 221 for peeling. The surfaces of the second-stage guide roller 221 and the first-stage guide roller 211 are both provided with spiral guide ribs 23. The front end of the second-stage guide roller 221 is drivenly connected to the rear end of the first-stage guide roller 211. The distance from the top plate of the peeling chamber 1 to the second-stage roller group 22 is greater than the distance from the top plate of the peeling chamber 1 to the first-stage roller group 21.

[0025] Both the first-stage peeling roller 212 and the second-stage peeling roller 222 can be made of rubber rollers, iron rollers, etc. To increase the peeling friction, rubber rollers are preferred.

[0026] The working principle of this corn cob peeling machine is the same as that of existing peeling machines. During peeling, the first-stage guide roller 211 is driven to rotate by a motor, and the rotation of the first-stage guide roller 211 simultaneously drives the second-stage guide roller 221 to rotate. During the rotation of the first-stage guide roller 211 and the second-stage guide roller 221, the spiral guide ribs 23 push the corn towards the discharge port 12, and the corn husk is pulled into the gap between the corresponding guide roller and the peeling roller. The friction between the guide roller and the peeling roller is used to tear off the corn husk. In this invention, the distance from the top plate of the peeling chamber 1 to the second-stage roller group 22 is greater than the distance from the top plate of the peeling chamber 1 to the first-stage roller group 21. This results in a larger space between the roller group and the shell of the peeling chamber 1 within the second peeling stage (the second-stage roller group section). Consequently, the shell of the peeling chamber 1 reduces its obstruction of the corn cobs in the second stage, making it easier for the second-stage guide roller 221 to move the corn cobs towards the discharge port. This increases the speed of the corn cobs in the second stage, better matching the speed in the first peeling stage, and reduces the likelihood of material blockage during the second-stage peeling process. Therefore, the peeling efficiency of the machine can be improved. Furthermore, the greater distance from the top plate of the peeling chamber 1 to the second-stage roller group 22 facilitates easier discharge and also helps reduce damage to the corn kernels on the corn cobs during the peeling process.

[0027] In one embodiment of this utility model, such as Figure 3As shown, the first-stage roller group 21 and the second-stage roller group 22 are arranged on the same plane. The top plate of the peeling chamber 1 is modified into a stepped shape so that the distance from the top plate of the peeling chamber 1 to the second-stage roller group 22 is greater than the distance from the top plate of the peeling chamber 1 to the first-stage roller group 21. Alternatively, the distance from the top plate of the peeling chamber 1 to the second-stage roller group 22 can also be made greater than the distance from the top plate of the peeling chamber 1 to the first-stage roller group 21 in the following ways: Figure 4 As shown, the top plate of the peeling chamber 1 is still set as a flat plate, and the setting height of the second stage roller group 22 is lowered so that its setting height is less than that of the first stage roller group 21. This utility model preferably adopts a structure where the top plate of the peeling chamber 1 is a flat plate and the setting height of the second stage roller group 22 is less than that of the first stage roller group 21. This structure not only facilitates the processing and manufacturing of the top plate, making the peeling machine more aesthetically pleasing, but also allows for a certain drop when the corn cob transitions from the first stage roller group 21 to the second stage roller group 22, facilitating the transition of the corn cob and improving the efficiency of the peeling machine.

[0028] Depending on the structure and operating conditions (such as rotational speed) of the peeling machine, the optimal value required for the difference between the distance from the top plate of the peeling chamber 1 to the second stage roller group 22 and the distance from the top plate of the peeling chamber 1 to the first stage roller group 21 will be different. A suitable value can be obtained through actual experiments.

[0029] When the first stage roller group 21 and the second stage roller group 22 are set on the same plane, the first stage guide roller 211 and the second stage guide roller 221 can be connected by bolts, couplings, welding, splines or other means. Of course, the first stage guide roller 211 and the second stage guide roller 221 can also adopt an integral structure.

[0030] In this invention, the rear end of the first-stage peeling roller 212 and the front end of the second-stage peeling roller 222 may not be connected to each other, i.e., they can be set independently. Alternatively, a transmission structure can be provided as needed to achieve a transmission connection. In this embodiment of the invention, the first-stage peeling roller 212 and the second-stage peeling roller 222 are set independently.

[0031] When the first stage roller group 21 and the second stage roller group 22 are set on the same plane, the first stage peeling roller 212 and the second stage peeling roller 222 can also be connected by bolts, couplings, welding, splines or other means. Of course, the first stage peeling roller 212 and the second stage peeling roller 222 can also adopt an integral structure.

[0032] When the height of the second stage roller group 22 is less than the height of the first stage roller group 21, the front end of the second stage guide roller 221 and the rear end of the first stage guide roller 211 are connected by a belt, chain, or gear. To avoid affecting the transmission structure, a cover plate 3 is provided at the transmission connection between the second stage guide roller 221 and the first stage guide roller 211 to facilitate the transition of corn cobs from above the transmission structure.

[0033] In existing peeling machines, the width of the spiral groove 24 formed by the guide ribs 23 on the guide rollers is typically between 40mm and 90mm, and the width of the spiral groove 24 formed by the guide ribs 23 on each stage of the same peeling machine is usually consistent. In this invention, preferably, the width of the spiral groove 24 formed by the guide ribs 23 on the second-stage guide roller 221 is smaller than the width of the spiral groove 24 formed by the guide ribs 23 on the first-stage guide roller 211. The larger width of the spiral groove 24 formed by the guide ribs 23 on the first-stage guide roller 211 facilitates rapid movement and efficient peeling of the corn cob in the first stage. Since the corn cob in the second stage has less husk and lacks husk protection, the smaller width of the spiral groove 24 formed by the guide ribs 23 on the second-stage guide roller 221 makes the corn cob less susceptible to compression by the guide ribs 23, reducing damage to the corn cob during the peeling process. If the width of the spiral groove 24 on the first-stage guide roller 211 is too large, it may easily crush the corn cobs. While a smaller spiral groove 24 on the second-stage guide roller 221 is better for protecting the corn cobs, it reduces the force exerted by the guide ribs on the corn cob in the discharge direction, affecting the efficiency of the peeling machine. Considering all factors, preferably, the width of the spiral groove 24 formed by the guide ribs 23 on the first-stage guide roller 211 is in the range of 50mm to 90mm, and the width of the spiral groove 24 formed by the guide ribs 23 on the second-stage guide roller 221 is in the range of 5mm to 40mm.

[0034] In order to improve the peeling effect in the first stage, in this invention, the spiral groove 24 formed by the guide rib 23 on the first stage guide roller 211 is provided with a protrusion 25.

[0035] The guide ribs 23 on the second-stage guide roller 221 can be made of materials such as steel, rubber, or plastic. To increase friction and improve the discharge speed in the second stage, the guide ribs 23 on the second-stage guide roller 221 are preferably made of rubber. The preference for rubber for the guide ribs 23 on the second-stage guide roller 221 also reduces damage to the corn cobs during the peeling process. The guide ribs 23 on the first-stage guide roller 211 can be made of materials such as steel, rubber, or plastic.

[0036] The gap between the peeling roller and its corresponding guide roller affects the peeling effect. To facilitate adjustment of the gap between the guide roller and the peeling roller at each stage according to actual conditions, such as… Figure 5As shown, the first-stage peeling roller 212 and the second-stage peeling roller 222 are respectively mounted in the peeling chamber 1 via mounting seats 4 that can move towards or away from the first-stage guide roller 211. A screw 5 is mounted on one side of the mounting seat 4 to push the mounting seat 4 towards the first-stage guide roller 211. The screw 5 abuts against the mounting seat 4 via a compressible relief spring 6 disposed between the mounting seat 4 and the screw 5. In the figure, the mounting seat 4 is movable towards or away from the first-stage guide roller 211 by means of a swinging arrangement, i.e., movement is achieved by swinging. In some embodiments, the mounting seat 4 is slidably connected to achieve the movement towards or away from the first-stage guide roller 211.

[0037] When it is necessary to adjust the gap between the peeling roller and the guide roller at a certain stage, such as to reduce the gap, rotate the screw 5 of the corresponding peeling roller mounting base 4 to move the screw. The screw then pushes the mounting base 4 towards the first-stage guide roller 211 via the relief spring 6, thus reducing the gap between the peeling roller and the guide roller at that stage. To increase the gap, rotate the screw in the opposite direction. A compressible relief spring 6 is provided between the screw 5 and the mounting base 4. During the operation of the peeling machine, the peeling roller can compress the relief spring 6 on its own and move away from the first-stage guide roller 211, i.e., make room. The gap between the guide roller and the peeling roller can be adaptively adjusted within a certain range according to the actual amount of corn husks to suit the actual situation.

[0038] like Figure 3 As shown, baffle plates 7 are respectively provided above the first stage roller group 21 and the second stage roller group 22. The front end of the baffle plate 7 is hinged so that it can rotate up and down, and the rear end of the baffle plate 7 is provided with a baffle spring 8 to prevent it from rotating upward. The baffle plates can block the corn cobs in their corresponding stages, allowing them to pass better through the groove between the guide roller and the peeling roller, which is beneficial for peeling the corn cobs.

Claims

1. A corn cob peeling machine, comprising a peeling chamber (1), wherein at least one peeling unit (2) is installed in the peeling chamber (1), the peeling unit (2) comprising a first stage roller group (21) and a second stage roller group (22) disposed at the rear end of the first stage roller group (21), the first stage roller group (21) comprising a first stage guide roller (211) and a first stage peeling roller (212) disposed on one side of the first stage guide roller (211) for peeling in cooperation with it, the second stage roller group (22) comprising a second stage guide roller (221) and a second stage peeling roller (222) disposed on one side of the second stage guide roller (221) for peeling in cooperation with it, the surfaces of the second stage guide roller (221) and the first stage guide roller (211) are provided with spiral guide ribs (23), the front end of the second stage guide roller (221) is drivenly connected to the rear end of the first stage guide roller (211), characterized in that: The distance from the top plate of the peeling chamber (1) to the second stage roller group (22) is greater than the distance from the top plate of the peeling chamber (1) to the first stage roller group (21).

2. The corn cob peeling machine as described in claim 1, characterized in that: The top plate of the peeling chamber (1) is a flat plate, and the setting height of the second stage roller group (22) is less than the setting height of the first stage roller group (21).

3. The corn cob peeling machine as described in claim 2, characterized in that: The front end of the second stage guide roller (221) is connected to the rear end of the first stage guide roller (211) by a belt, chain or gear drive, and a cover plate (3) is provided at the drive connection between the second stage guide roller (221) and the first stage guide roller (211).

4. The corn cob peeling machine as described in claim 1, characterized in that: The width of the spiral groove (24) formed by the guide rib (23) on the second stage guide roller (221) is smaller than the width of the spiral groove (24) formed by the guide rib (23) on the first stage guide roller (211).

5. The corn cob peeling machine as described in claim 4, characterized in that: The width of the spiral groove (24) formed by the guide rib (23) on the first stage guide roller (211) ranges from 50mm to 90mm, and the width of the spiral groove (24) formed by the guide rib (23) on the second stage guide roller (221) ranges from 5mm to 40mm.

6. The corn cob peeling machine as described in claim 4 or 5, characterized in that: The spiral groove (24) formed by the guide rib (23) on the first stage guide roller (211) is provided with a protrusion (25).

7. The corn cob peeling machine as described in claim 4 or 5, characterized in that: The guide ribs (23) on the second stage guide roller (221) are made of rubber.

8. The corn cob peeling machine as described in claim 1, characterized in that: The first-stage peeling roller (212) and the second-stage peeling roller (222) are respectively mounted in the peeling chamber (1) by mounting seats (4) that can move toward or away from the first-stage guide roller (211). A screw (5) for pushing the mounting seat (4) to move toward the first-stage guide roller (211) is mounted on one side of the mounting seat (4). The screw (5) abuts against the mounting seat (4) by a compressible relief spring (6) provided on the mounting seat (4) and the screw (5).

9. The corn cob peeling machine as described in claim 8, characterized in that: The mounting base (4) can be oscillating toward or away from the first-stage guide roller (211).

10. The corn cob peeling machine as described in claim 1, characterized in that: The first stage roller group (21) and the second stage roller group (22) are respectively provided with baffle plates (7). The front end of the baffle plate (7) is hinged so that it can rotate up and down. The rear end of the baffle plate (7) is provided with a baffle spring (8) to prevent it from rotating upward.

Images