A continuous jujube peeling machine

CN224875920UActive Publication Date: 2026-10-23SHANDONG AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202522518566.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-10-23
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

这种工作模式生产效率低,无法与前后端的清洗、去核、灌装等连续化工序有效衔接,形成了生产流水线上的“瓶颈”,制约了整个生产线的自动化水平与产能

Benefits of technology

[0014]作为优选,支撑板为网状结构且支撑板底面设置有震动电机,支撑板下方固定设置有斜板,机箱另一侧面开设有出皮口,斜板向出皮口的方向倾斜向下,网状支撑板能使得粉末状的红枣皮掉落并从斜板流出出皮口,实现对红枣进一步的筛分。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to food processing machinery technical field, and concretely is a kind of continuous red jujube peeling machine, including cabinet, peeling conveying roller is arranged in the cabinet, the peeling conveying roller includes the roller body that is driven along its axial line rotation by drive equipment, the spiral groove that is opened along the length direction of the outer side of roller body and the frosted layer that is sprayed along the inner wall of spiral groove and the outer side of roller body;The lower part of the peeling conveying roller is fixedly arranged with the support plate parallel to peeling conveying roller, the inlet is located in the top of the roller body one end in the cabinet, and the support plate and cabinet are respectively provided with the through blanking port and discharge port.The use of the present application can not only realize the friction peeling of red dates under the rotation condition of two meshing peeling conveying rollers, but also can convey while peeling red dates, thereby realizing peeling while conveying, and further realizing the continuous operation of peeling, improving overall efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of food processing machinery technology, specifically a continuous jujube peeling machine. Background Technology

[0002] Red dates are rich in nutrients and are loved by consumers. In the field of red date processing (such as the popular tiger-skin dates, black dates, date wine, date beverages, etc.), peeling is a key pre-processing step. The quality of peeling directly affects the taste, appearance, and market value of the subsequent products.

[0003] Currently, the peeling of jujubes still relies on traditional manual operations or semi-mechanized equipment in a considerable number of enterprises. Manual peeling is inefficient, labor-intensive, and difficult to maintain hygiene, and it also has high production costs. Problems such as over-peeling and uneven peeling exist, which can no longer meet the needs of large-scale and continuous production in the modern food industry.

[0004] To replace manual labor, some jujube peeling machines have appeared on the market. These machines mainly use the physical friction principle for peeling, with a typical example being the use of a sand roller (or grinding wheel) as the peeling actuator. During operation, the jujubes come into contact with the surface of the high-speed rotating sand roller inside the container, and the skin is removed through the friction of the sand particles.

[0005] However, most existing jujube peeling equipment operates intermittently or in batches. A fixed quantity of jujubes needs to be loaded into the processing chamber, peeled, and then the machine stopped to remove the jujubes and feed them into the next batch. This working mode results in low production efficiency and cannot be effectively integrated with continuous processes such as washing, pitting, and filling, creating a bottleneck in the production line and restricting the automation level and capacity of the entire production line. Utility Model Content

[0006] This utility model provides a continuous jujube peeling machine to overcome the defects in the prior art.

[0007] This utility model is achieved through the following technical solution: A continuous jujube peeling machine includes a casing with a frosted coating on the inner wall. A peeling conveyor roller is installed inside the casing. The peeling conveyor roller includes a roller body that is driven to rotate along its axis by a drive device, a spiral groove opened along the length of the outer side of the roller body, and a frosted coating sprayed along the inner wall of the spiral groove and the outer side of the roller body. A support plate parallel to the peeling conveyor roller is fixedly installed at the lower part of the peeling conveyor roller. The casing has a feed port located at the top of one end of the roller body. The support plate and the casing are respectively provided with a through discharge port and a discharge port.

[0008] In use, the peeled jujubes are placed into the machine housing through the feed inlet. The roller rotates under the drive of the drive device. Since the roller has a spiral groove and the spiral groove and the outer surface of the roller have a frosted surface, the jujubes can be conveyed towards the discharge outlet while rotating, and the jujubes can be rubbed to remove the peel. This allows for simultaneous feeding, peeling and discharge, thus achieving continuous peeling and improving overall work efficiency.

[0009] Preferably, a partition is fixedly installed on the inner wall of the top surface of the chassis, forming a feed inlet and an inner pressing area between the partition and the inner walls of the two sides of the chassis, respectively. A first pressure plate with a frosted coating is installed inside the feed inlet, and a handle is provided on the top surface of the first pressure plate. A feed groove is formed on the first pressure plate, with an internal thread and a sealing plate threadedly connected to it. Slides are provided on both sides of the feed inlet, and sliders are installed within the slides. The first pressure plate is fixedly connected to the corresponding slider. One end of a tension spring is fixedly connected to the inner wall of the bottom surface of the slide, and the other end of the tension spring is fixedly connected upwards to the corresponding slider. Under the action of the tension spring, the first pressure plate can press the dates located between the first pressure plate and the peeling conveyor roller inside the feed inlet, thereby achieving better contact between the dates and the frosted surface and a better peeling effect. The cooperation between the slider and the slide allows for better up-and-down movement of the first pressure plate, while the feed groove facilitates feeding, and the sealing plate seals the feed groove. The handle allows for easy lifting of the first pressure plate and convenient placement of dates.

[0010] Preferably, a second pressure plate with a frosted coating is installed in the inner pressing zone. The bottom surface of the second pressure plate is parallel to the axis of the peeling conveyor roller. The left end of the second pressure plate extends beyond the partition and bends vertically upwards. A sliding rod is vertically connected to the top surface of the second pressure plate. An outer tube is vertically connected to the inner wall of the top surface of the machine housing. The sliding rod enters the outer tube and slides with it. One end of a compression spring is fixedly connected to the upper end of the sliding rod, and the other end of the compression spring is fixedly connected upwards to the inner wall of the top surface of the machine housing, with the compression spring located in the outer tube. The second pressure plate can tightly press the dates during the conveying process, thereby achieving a better peeling effect. The cooperation of the sliding rod and the outer tube ensures that the compression spring always exerts a vertical force on the second pressure plate. The vertical upward bend of the left end of the second pressure plate can prevent the dates from entering the gap between the partition and the second pressure plate, thus preventing them from being peeled properly.

[0011] Preferably, multiple sets of peeling conveyor rollers can be installed inside the machine housing. Each set consists of two parallel peeling conveyor rollers with oppositely rotating spiral grooves that mesh with each other. One end of each roller is rotatably connected to the inner wall of the machine housing via a bearing, while the other end extends out of the machine housing and is fitted with a meshing gear. The driving device includes a drive motor fixedly installed on the outside of the machine housing. The outer end of any roller in each set is coaxially and fixedly connected to the shaft of the corresponding drive motor. The two peeling conveyor rollers, capable of rotating in opposite directions, generate relative motion and friction at the meshing point. The spiral design also provides axial thrust during peeling. Combined with the pressure plate, this ensures that the dates pass through the rollers one by one, guaranteeing uniformity in material processing (consistent path, consistent time). The rotation of the drive motor drives the corresponding gear to rotate, which in turn drives the other gear to rotate in the same direction. This achieves opposite rotation of the two rollers and conveys the dates in the same direction while maintaining opposite spirals. Multiple sets of rollers increase overall efficiency.

[0012] Preferably, the peeling conveyor roller is inclined downward from the feed port side to the discharge port side, which facilitates the axial movement of the dates during peeling and allows the dates to move better toward the discharge port under the action of gravity.

[0013] Preferably, the discharge port is located at the lower part of the side of the machine casing. A guide plate is installed between the discharge port and the discharge port to guide the material flow. A fan hood is installed on the side of the machine casing, and the fan hood is connected to the inside of the machine casing. The suction trajectory of the fan hood is perpendicular to the falling trajectory of the jujubes, and the fan hood is connected to a vacuum cleaner. After peeling, the jujubes, along with their skins, can move downwards under the action of gravity. The jujube skins are light and can be sucked into the vacuum cleaner by the fan hood, thus achieving the separation of the jujubes and their skins.

[0014] Preferably, the support plate has a mesh structure and a vibration motor is installed on the bottom surface of the support plate. An inclined plate is fixedly installed below the support plate, and a peel outlet is opened on the other side of the machine box. The inclined plate is tilted downwards towards the peel outlet. The mesh support plate can make the powdery jujube peel fall off and flow out of the peel outlet from the inclined plate, thereby achieving further screening of the jujubes.

[0015] The beneficial effects of this utility model are as follows: the use of this application can not only achieve frictional peeling of jujubes under the rotating condition of two meshing peeling conveyor rollers, but also convey the jujubes while peeling them, thereby achieving peeling and conveying at the same time, thus realizing continuous peeling operation and improving overall efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the operation of two peeling conveyor rollers; Figure 3 yes Figure 1 A magnified view of part of I.

[0018] As shown in the figure: 1. Casing; 2. Roller body; 3. Spiral groove; 4. Support plate; 5. Feed port; 6. Discharge port; 7. First pressure plate; 8. Slider; 9. Second pressure plate; 10. Tension spring; 11. Outer tube; 12. Slide rod; 13. Fan cover; 14. Inclined plate; 15. Gear. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] A continuous jujube peeling machine, such as Figure 1 and Figure 2 As shown. The machine includes a casing 1 with an inner wall coated with a frosted layer. Inside the casing 1 is a peeling conveyor roller. The peeling conveyor roller includes a roller body 2 driven by a drive device to rotate along its axis, a spiral groove 3 formed along the length of the outer side of the roller body 2, and a frosted layer coated along the inner wall of the spiral groove 3 and the outer side of the roller body 2. A support plate 4 parallel to the peeling conveyor roller is fixedly installed at the lower part of the peeling conveyor roller. The casing 1 has a feed inlet located at the top of one end of the roller body 2. The support plate 4 and the casing 1 each have a through-hole discharge port 5 and a discharge port 6, respectively. The discharge port 6 is located at the lower part of the side of the casing 1. A guide plate is provided between the discharge port 5 and the discharge port 6 to guide the discharge. A fan hood 13 is installed on the side of the casing 1, communicating with the interior of the casing 1. The suction trajectory of the fan hood 13 is perpendicular to the falling trajectory of the jujubes, and the fan hood 13 is connected to a vacuum cleaner.

[0021] A partition is fixedly installed on the inner wall of the top surface of the chassis 1, forming a feed inlet and an inner pressing area between the partition and the inner walls of the two sides of the chassis 1. A first pressure plate 7 with a frosted coating is installed in the feed inlet. A handle is provided on the top surface of the first pressure plate 7. A feed groove is provided on the first pressure plate 7. The feed groove has an internal thread and is threaded to a sealing plate. Slide grooves are provided on both sides of the feed inlet. A slider 8 is installed in the slide groove. The first pressure plate 7 is fixedly connected to the corresponding slider 8. One end of a tension spring 10 is fixedly connected to the inner wall of the bottom surface of the slide groove. The other end of the tension spring 10 is fixedly connected upward to the corresponding slider 8.

[0022] A second pressure plate 9 with a frosted coating is installed in the inner pressing area. The bottom surface of the second pressure plate 9 is parallel to the axis of the peeling conveyor roller. The left end of the second pressure plate 9 extends past the partition and bends vertically upward. A notch is opened on the side of the partition, and the bent surface of the second pressure plate is located within the notch, so that the bent surface of the second pressure plate 9 and the corresponding side of the partition are on the same vertical plane, which facilitates the downward movement of the jujubes. A slide rod 12 is vertically connected to the top surface of the second pressure plate 9. An outer tube 11 is vertically connected to the inner wall of the top surface of the machine housing 1. The slide rod 12 enters the outer tube 11 and slides with the outer tube 11. One end of the compression spring is fixedly connected to the upper end of the slide rod 12, and the other end of the compression spring is fixedly connected to the inner wall of the top surface of the machine housing 1, with the compression spring located in the outer tube 11.

[0023] In this application, peeled jujubes are placed into the machine housing 1 through the feed inlet. The roller 2 rotates under the drive of a driving device. Because the roller 2 has spiral grooves 3 and both the spiral grooves 3 and the outer surface of the roller 2 have a frosted surface, the rotation of the roller 2 not only conveys the jujubes towards the discharge port 6, but also allows the jujubes to move axially one by one within the spiral grooves. The jujubes are peeled by the friction between the top and bottom of the spiral grooves and the inner wall of the machine housing, thus achieving simultaneous feeding, peeling, and discharge, thereby achieving continuous peeling and improving overall work efficiency. The peeled jujubes, along with their peels, are conveyed by the roller 2 and fall downwards onto the guide plate at the discharge port 5, flowing out of the discharge port 6 under the action of the guide plate. As the jujubes and peels move downwards, the peel cup shroud 13 sucks them in and into the dust collector, while the heavier jujubes continue to move downwards, achieving separation of the jujubes from their peels.

[0024] The first pressure plate 7, under the action of the tension spring 10, can press the jujubes located between the first pressure plate 7 and the peeling conveyor roller inside the feed inlet, thereby achieving better contact between the jujubes and the abrasive surface and achieving a better peeling effect. The cooperation between the slider 8 and the slide groove allows the first pressure plate 7 to move up and down more effectively, while the feed chute facilitates feeding, and the sealing plate closes the feed chute. The handle allows for easy lifting of the first pressure plate 7 and convenient placement of jujubes.

[0025] The second pressure plate 9 can tightly press the dates during the conveying process, thus achieving a better peeling effect. The cooperation of the slide rod 12 and the outer tube 11 ensures that the pressure spring always applies vertical force to the second pressure plate 9. The vertical upward bend of the left end of the second pressure plate 9 can prevent the dates from entering the gap between the partition and the second pressure plate 9, which would prevent them from being peeled properly.

[0026] Multiple sets of peeling conveyor rollers can be installed inside the housing 1. Each set consists of two rollers arranged in parallel within the housing 1. The corresponding spiral grooves 3 on each set rotate in opposite directions and are meshed with each other. One end of each roller body 2 is rotatably connected to the inner wall of the housing 1 via a bearing, and the other end extends out of the housing 1 and is fitted with a meshing gear 15. Each set of peeling conveyor rollers is driven by a drive device, which includes a drive motor fixedly installed on the outside of the housing 1. The outer end of any roller body 2 is coaxial with and fixedly connected to the shaft of the drive motor. Having two peeling conveyor rollers improves the overall peeling efficiency. The rotation of the drive motor drives the corresponding gear 15 to rotate, which in turn drives the other gear 15 to rotate in the same direction, achieving opposite rotation of the two roller bodies 2 and conveying the dates in the same direction while maintaining opposite spiral directions. The dates are moved axially one by one within the meshing spiral grooves, and are subjected to friction from the top and bottom of the spiral grooves. At the same time, the two peeling conveyor rollers rotate in opposite directions, generating relative motion and friction at the meshing point. The spiral design also provides axial thrust during peeling. Combined with the action of the pressure plate, the dates pass through the rollers one by one, ensuring the uniformity of material processing (consistent path and time).

[0027] The peeling conveyor roller is inclined downward at a certain angle from the feed port side to the discharge port 6 side, which facilitates the axial movement of the jujubes during peeling and allows the jujubes to move better toward the discharge port 6 under the action of gravity.

[0028] The support plate has a mesh structure with a vibration motor mounted on its bottom surface. An inclined plate 14 is fixedly installed below the support plate 4. A peel outlet is located on the other side of the casing 1. The inclined plate 14 slopes downwards towards the peel outlet. The mesh support plate 4 allows waste material to fall and flow out through the peel outlet, achieving further screening of the jujubes. Besides separating the jujube peel from the waste material (crushed jujube chunks), the support plate 4 can also work with rollers. Smaller jujubes or crushed jujube chunks are axially moved and collected via the lower spiral surface of the rollers.

[0029] The use of this application enables not only frictional peeling of jujubes under the rotating condition of two meshing peeling conveyor rollers, but also conveying of jujubes while peeling, thereby achieving continuous peeling operation and improving overall efficiency.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that, for example, the frequency conversion design of the power motor can dynamically adjust the speed of the peeling conveyor roller to realize the adjustment of the corresponding parameters when peeling red dates. In other aspects, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A continuous jujube peeling machine, characterized in that: The device includes a housing, inside which a peeling conveyor roller is installed. The peeling conveyor roller includes a roller body that is driven to rotate along its axis by a drive device, a spiral groove opened along the length of the outer side of the roller body, and a frosted layer sprayed along the inner wall of the spiral groove, the outer side of the roller body, and the inner wall of the housing. A support plate parallel to the peeling conveyor roller is fixedly installed at the lower part of the peeling conveyor roller. The housing has a feed inlet located at the top of one end of the roller body, and the support plate and the housing are respectively provided with a through discharge port and a discharge port.

2. The continuous jujube peeling machine according to claim 1, characterized in that: A partition is fixedly installed on the inner wall of the top surface of the chassis, forming a feed inlet and an inner pressing area between the partition and the inner walls of the two sides of the chassis, respectively. A first pressure plate with a frosted coating is installed in the feed inlet, and a handle is provided on the top surface of the first pressure plate. A feed groove is provided on the first pressure plate, and the feed groove has an internal thread and is threaded to a sealing plate. Slide grooves are provided on both sides of the feed inlet, and sliders are provided in the slide grooves. The first pressure plate is fixedly connected to the corresponding sliders. One end of a tension spring is fixedly connected to the inner wall of the bottom surface of the slide groove, and the other end of the tension spring is fixedly connected upward to the corresponding slider.

3. The continuous jujube peeling machine according to claim 2, characterized in that: The inner pressing zone is equipped with a second pressure plate with a bottom spray nozzle frosted layer. The bottom surface of the second pressure plate is parallel to the axis of the peeling conveyor roller. The left end of the second pressure plate passes over the partition and bends vertically upward. A sliding rod is vertically connected to the top surface of the second pressure plate. An outer tube is vertically connected to the inner wall of the top surface of the machine box. The sliding rod enters the outer tube and slides with the outer tube. One end of the pressure spring is fixedly connected to the upper end of the sliding rod. The other end of the pressure spring is fixedly connected to the inner wall of the top surface of the machine box and the pressure spring is located in the outer tube.

4. The continuous jujube peeling machine according to claim 1, characterized in that: Multiple sets of peeling conveyor rollers can be installed inside the machine housing. Each set has two peeling conveyor rollers arranged in parallel. The spiral grooves of the two peeling conveyor rollers rotate in opposite directions and are meshed with each other. One end of each set of rollers is rotatably connected to the inner wall of the machine housing through a bearing, and the other end passes through the machine housing and is fitted with a meshing gear. The driving device includes a drive motor fixedly installed on the outside of the machine housing. The outer end of any roller in each set is coaxial with and fixedly connected to the shaft of the corresponding drive motor.

5. The continuous jujube peeling machine according to claim 4, characterized in that: The peeling conveyor roller is inclined downwards at a certain slope from the feed inlet side to the discharge outlet side.

6. The continuous jujube peeling machine according to claim 5, characterized in that: The discharge port is located at the lower part of the side of the machine box. A guide plate is provided between the discharge port and the discharge port to guide the material to be discharged. A fan hood is provided on the side of the machine box. The fan hood is connected to the inside of the machine box. The suction trajectory of the fan hood is perpendicular to the falling trajectory of the jujubes. The fan hood is connected to the vacuum cleaner.

7. The continuous jujube peeling machine according to claim 6, characterized in that: The support plate has a mesh structure and a vibration motor is installed on the bottom surface of the support plate. An inclined plate is fixedly installed below the support plate, and a leather outlet is opened on the other side of the machine box. The inclined plate is inclined downward towards the leather outlet.