A pre-treatment device for immature torreya grandis peel fruit separation

Abstract

The utility model relates to handle equipment of Chinese torreya grandis, disclose a kind of immature Chinese torreya grandis skin fruit separation pretreatment equipment, including rack, first conveying belt is installed on rack, pressure roller adjusting device is also installed on rack, pressure roller adjusting device includes pressure roller height adjusting piece and multiple pressure rollers, both ends of each pressure roller are installed with pressure roller height adjusting piece, pressure roller is set in first conveying belt just above, extrusion channel is formed between the two, first conveying belt and pressure roller differential rotation. The pressure roller height adjusting piece of each pressure roller two ends can be flexibly adjusted extrusion channel height between pressure roller and first conveying belt, can adapt to different size, fullness of Chinese torreya grandis, avoid extrusion insufficient or damage fruit;Special extrusion channel can loosen the connection of Chinese torreya grandis pericarp and kernel by extrusion, reduce difficulty for subsequent skin fruit separation;While the differential rotation design of first conveying belt and pressure roller can stabilize the conveyance Chinese torreya grandis, can enhance extrusion effect, also can avoid Chinese torreya grandis jam, guarantee pretreatment process continuous stability.

Description

Technical Field

[0001] This utility model relates to equipment for processing Torreya grandis, and more particularly to a pretreatment device for separating the peel and fruit of immature Torreya grandis. Background Technology

[0002] Chinese torreya (scientific name: *Torreya grandis* 'Merrillii' Hu), also known as round torreya, fine torreya, horn torreya, and pearl torreya, is a superior cultivated type of the *Torreya* tree in the Taxaceae family. It is a rare and precious dried fruit tree species unique to China. In recent years, the scale of Chinese torreya cultivation in my country has expanded rapidly, mainly growing in the more humid southern regions, such as Zhejiang, Fujian, Jiangxi, Anhui, and Hunan. Besides being eaten as a snack and for its seed oil, Chinese torreya also has medicinal uses. It has many applications in traditional Chinese medicine. Its rich nutritional components include high-quality protein, healthy fats, carbohydrates, dietary fiber, vitamins, and minerals, including antioxidants, cardiovascular health benefits, digestive aid, energy provision, bone strengthening, blood sugar regulation, and immune system enhancement. Chinese torreya has a low glycemic index, making it suitable for diabetics and helping to stabilize blood sugar levels.

[0003] Removing the aril from Torreya grandis refers to removing the outer aril of the Torreya grandis fruit. The processing methods differ for mature and immature Torreya grandis, as follows: For mature Torreya grandis, the aril should be removed as soon as possible after harvesting. This can be done manually or mechanically to separate the aril from the kernel. Subsequent composting is then carried out on a well-ventilated, cool, clean, and uncontaminated indoor surface, with the aril piled in batches according to harvest time. For immature Torreya grandis, the current main processing method is to pile them in a well-ventilated indoor area, with a pile thickness of about 10cm, for 3-5 days. Once the aril turns yellow and softens, it should be removed, followed by composting. Another processing method involves piling immature Torreya nuts indoors, according to harvest batch and maturity level, to a height of 15-20cm. A certain proportion of ethephon is sprayed on the pile (the spraying ratio varies depending on the actual pile thickness and environment), then the pile is covered with film and left to ferment for 1-2 days until the aril turns yellow and softens. The aril is then removed, followed by the same composting process. The above-mentioned processing methods for immature Torreya nuts are time-consuming and require significant space. Therefore, this invention optimizes the process and equipment for removing the aril from immature Torreya nuts.

[0004] Patent application number 202211555802.X discloses an enzymatic dehulling device for Torreya grandis and its processing technology. The dehulling device uses a vibrating plate to transport the material to the seed coat cutting mechanism. Each Torreya grandis needs to be processed separately in a separate cutting mechanism. The processing speed is slow and the peel debris generated during the peeling process cannot be discharged normally, which can easily affect the peeling device.

[0005] Patent application number 202410023800.9 discloses a rotary torreya nut peeling machine, which uses a rotary peeling device to peel the material, and then allows it to undergo natural fermentation and ripening to soften the green peel (because the surface of immature torreya nut peel is covered with a waxy layer, this patent still requires composting and ripening after peeling to soften the green peel, so the overall processing time remains unchanged). Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a pretreatment device for separating the peel and fruit of immature Torreya grandis.

[0007] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A pre-treatment device for separating the peel and fruit of immature Torreya grandis includes a frame, a first conveyor belt mounted on the frame, and a pressure roller adjusting device mounted on the frame. The pressure roller adjusting device includes a pressure roller height adjusting component and multiple pressure rollers. Each pressure roller has a pressure roller height adjusting component mounted at both ends. The pressure rollers are positioned directly above the first conveyor belt, forming a compression channel between them for compressing the Torreya grandis. The first conveyor belt and the pressure rollers rotate at a differential speed.

[0008] Preferably, the pressure roller height adjustment component includes a first slider, a locking component, and a first adjusting rod threadedly connected to the frame. The pressure roller is mounted on the first slider via a bearing. A first guide rail is mounted on the frame, and the first slider is mounted on the first guide rail. One end of the first adjusting rod is connected to the first slider, and the other end extends out of the frame and is connected to a first rotating handle. The locking component is threadedly connected to the first adjusting rod and fastens it to the frame. Rotating the first adjusting rod causes the first slider to rise and fall along the first guide rail.

[0009] Preferably, the frame has side frames on both sides, and multiple fixing plates are provided on the side frames. First guide rails are installed on both sides of the fixing plates, and the first slider is set between the two fixing plates through the first guide rails.

[0010] Preferably, the rotation direction of the first conveyor belt is opposite to the rotation direction of all the pressure rollers.

[0011] Preferably, the circumferential surface of the pressure roller is provided with protrusions for breaking the outer shell of the torreya nut.

[0012] Preferably, a second conveyor belt and a third conveyor belt are also installed on the frame. The third conveyor belt is located below the second conveyor belt and the first conveyor belt. A rear feeding zone is formed between the first conveyor belt, the second conveyor belt and the third conveyor belt. A rubbing channel communicating with the rear feeding zone is provided between the second conveyor belt and the third conveyor belt. The second conveyor belt and the third conveyor belt rotate at different speeds.

[0013] Preferably, the rotation direction of the second conveyor belt is opposite to that of the third conveyor belt, and the rotation direction of the third conveyor belt is the same as that of the first conveyor belt.

[0014] Preferably, the frame is also equipped with a conveyor belt height adjustment component, which includes a second adjustment rod and an adjustment frame. The second conveyor belt is installed between two adjustment frames via a pin. Both ends of the adjustment frame are connected to a second adjustment rod that is threaded to the frame. The other end of the second adjustment rod extends out of the frame and is connected to a second rotating handle.

[0015] Preferably, a tensioning assembly is installed on the adjusting frame, and the tensioning assembly is connected to the pin of the second conveyor belt. The tensioning assembly includes a second slider and a third adjusting rod. The pin of the second conveyor belt is installed between two second sliders through a bearing. A second guide rail is installed on the adjusting frame, and the second slider slides on the second guide rail. The third adjusting rod is threadedly connected to the adjusting frame and drives the second slider to move left and right on the second guide rail.

[0016] Preferably, a feed hopper is installed at the front end of the frame, which is located above the first conveyor belt and close to the inlet end of the extrusion channel; a discharge hopper is installed at the rear end of the frame, which is located below the third conveyor belt.

[0017] This utility model, by adopting the above technical solution, has significant technical effects: The height adjustment components at both ends of each pressure roller can flexibly adjust the height of the extrusion channel between the pressure roller and the first conveyor belt, which can accommodate torreya nuts of different sizes and plumpness, avoiding insufficient extrusion or damage to the fruit; the dedicated extrusion channel can loosen the connection between the torreya nut peel and the kernel through extrusion, reducing the difficulty of subsequent peel-fruit separation; at the same time, the differential rotation design of the first conveyor belt and the pressure roller can not only stably transport the torreya nuts, but also enhance the extrusion effect, and prevent the torreya nuts from getting stuck, ensuring the continuous and stable pre-processing process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the layout structure of the pressure rollers and conveyor belt.

[0020] Figure 3 This is a schematic diagram of the structure of the pressure roller height adjustment component.

[0021] Figure 4 This is a schematic diagram of the structure at the end face of the pressure roller.

[0022] Figure 5 This is a structural diagram of components such as the second adjusting rod and the adjusting frame.

[0023] The names of the body parts referred to by the numbers in the above attached diagrams are as follows: 10—Frame, 11—First conveyor belt, 12—Pressure roller height adjustment component, 13—Pressure roller, 14—Second conveyor belt, 15—Third conveyor belt, 16—Second adjusting rod, 17—Adjusting frame, 18—Second rotating handle, 19—Tensioning assembly, 20—Feed hopper, 21—Discharge hopper 100—Extrusion channel, 200—Rear feed zone, 300—Skinning channel 101—First guide rail, 102—Side frame, 103—Fixing plate 121—First slider, 122—First adjusting rod, 123—First rotating handle, 124—Locking element 131—Protrusion 171—Second guide rail 191—Second slider, 192—Third adjusting rod Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail with reference to the embodiments.

[0025] Example 1 A pre-treatment device for separating the peel and fruit of immature Torreya grandis includes a frame 10, on which a first conveyor belt 11 is installed. A pressure roller adjustment device is also installed on the frame 10. The pressure roller adjustment device includes a pressure roller height adjustment component 12 and multiple pressure rollers 13. In this embodiment, there are 8 pressure rollers 13. Each pressure roller 13 has a pressure roller height adjustment component 12 installed at both ends. The pressure rollers 13 are located directly above the first conveyor belt 11, and a compression channel 100 for compressing Torreya grandis is formed between the two. The first conveyor belt 11 and the pressure rollers 13 rotate at different speeds. The height adjustment components 12 at both ends of each pressure roller 13 can flexibly adjust the height of the extrusion channel 100 between the pressure roller 13 and the first conveyor belt 11, which can adapt to different sizes and fullness of Torreya grandis, avoiding insufficient extrusion or damage to the fruit; the dedicated extrusion channel 100 can loosen the connection between the Torreya grandis peel and kernel through extrusion, reducing the difficulty of subsequent peel-fruit separation; at the same time, the differential rotation design of the first conveyor belt 11 and the pressure roller 13 can not only stably transport Torreya grandis, but also enhance the extrusion effect, and avoid Torreya grandis jamming, ensuring the continuous and stable pre-processing process.

[0026] The roller height adjustment component 12 is mainly for adjusting the roller 13 up and down for different batches of Torreya grandis fruits. The roller height adjustment component 12 includes a first slider 121, a locking component 124, and a first adjusting rod 122 threadedly connected to the frame 10. The roller 13 is mounted on the first slider 121 via bearings. A first guide rail 101 is mounted on the frame 10. The first slider 121 is mounted on the first guide rail 101. One end of the first adjusting rod 122 is connected to the first slider 121, and the other end extends out of the frame 10 and is connected to a first rotating handle 123. The locking component 124 is threadedly connected to the first adjusting rod 122 and fastens it to the frame 10. Rotating the first adjusting rod 122 drives the first slider 121 to rise and fall along the first guide rail 101. The adjustment is convenient. One end of the first adjustment rod 122 is equipped with a first rotating handle 123 and is threaded to the frame 10. No complicated tools are required. The adjustment can be driven by manually rotating the first rotating handle 123. The adjustment is precise and stable. The first slider 121 is installed on the first guide rail 101 of the frame 10. It can move in a directional manner along the guide rail when lifting and lowering to avoid deviation and ensure that the height of the pressure roller 13 is accurately adjusted.

[0027] The frame 10 has side frames 102 on both sides, and multiple fixing plates 103 are provided on the side frames 102. The fixing plates 103 are welded to the side frames 102. First guide rails 101 are installed on both sides of the fixing plates 103. The first guide rails 101 play a guiding and limiting role to ensure the stability of the lifting of the first slider 121. The first slider 121 is set between the two fixing plates 103 through the first guide rails 101.

[0028] The rotation direction of the first conveyor belt 11 is opposite to the rotation direction of all the pressure rollers 13, ensuring that the torreya nuts enter the extrusion channel 100. The green skin of the torreya nuts is crushed in the extrusion channel 100, which facilitates the entry of enzyme solution.

[0029] The circumferential surface of the pressure roller 13 is provided with a protrusion 131 for breaking the outer shell of the torreya nut, and the protrusion 131 is toothed.

[0030] The frame 10 is also equipped with a second conveyor belt 14 and a third conveyor belt 15. The third conveyor belt 15 is located below the second conveyor belt 14 and the first conveyor belt 11. The first conveyor belt 11, the second conveyor belt 14 and the third conveyor belt 15 form a rear feeding zone 200. The rear feeding zone 200 expands the feeding space for Torreya grandis, allowing the Torreya grandis that has been pre-processed by the first conveyor belt 11 to transition stably to subsequent stages, avoiding material accumulation or scattering. A rubbing channel 300 connected to the rear feeding zone 200 is provided between the second conveyor belt 14 and the third conveyor belt 15. The second conveyor belt 14 and the third conveyor belt 15 rotate at different speeds. The differential rotation between the two generates relative frictional force, which further rubs and kneads the Torreya grandis, loosening or even peeling the peel more fully, making up for the limitations of pre-processing by extrusion alone. The third conveyor belt 15 is also positioned below to receive and transport the Torreya grandis after rubbing, ensuring that the entire pre-processing process is continuous and smooth.

[0031] The rotation direction of the second conveyor belt 14 is opposite to that of the third conveyor belt 15, and the rotation direction of the third conveyor belt 15 is the same as that of the first conveyor belt 11, ensuring that the torreya nuts can be smoothly conveyed from the extrusion channel 100 to the peeling channel 300.

[0032] The frame 10 is also equipped with a conveyor belt height adjustment device, which includes a second adjusting rod 16 and an adjusting frame 17. The second conveyor belt 14 is installed between the two adjusting frames 17 via pins. Both ends of the adjusting frame 17 are connected to the second adjusting rod 16, which is threaded to the frame 10. The other end of the second adjusting rod 16 extends out of the frame 10 and is connected to a second rotating handle 18. The conveyor belt height adjustment device makes the height of the second conveyor belt 14 adjustable, thereby flexibly adapting to the specifications of Torreya grandis to optimize the peeling effect and ensure stable operation. By adjusting the height of the second conveyor belt 14, the gap between it and the peeling channel 300 between it and the third conveyor belt 15 can be flexibly changed to adapt to Torreya grandis of different sizes and maturity levels, ensuring the sufficiency and consistency of subsequent peeling processing and further improving the pretreatment effect.

[0033] A tensioning assembly 19 is installed on the adjusting frame 17. The tensioning assembly 19 is connected to the pin of the second conveyor belt 14. The tensioning assembly 19 includes a second slider 191 and a third adjusting rod 192. The pin of the second conveyor belt 14 is installed between two second sliders 191 through bearings. A second guide rail 171 is installed on the adjusting frame 17. The second sliders 191 slide on the second guide rail 171. The third adjusting rod 192 is threadedly connected to the adjusting frame 17 and drives the second sliders 191 to move left and right on the second guide rail 171. The second sliders 191 slide directionally along the second guide rail 171 to avoid deviation, ensuring that the second conveyor belt 14 is subjected to uniform force and consistent tension, effectively preventing slippage or deviation due to slack, ensuring the stability of the differential rotation of the second conveyor belt 14 and the third conveyor belt 15, and providing reliable support for the rubbing effect of the rubbing channel 300. Tensioning component 19 is used for convenient and precise adjustment of the tension of the second conveyor belt 14, ensuring its differential rotation effect with the third conveyor belt 15 and stably performing the rubbing function.

[0034] A feed hopper 20 is installed at the front end of the frame 10. Torreya nuts enter the first conveyor belt 11 from the feed hopper 20. The feed hopper 20 is located above the first conveyor belt 11 and close to the inlet end of the extrusion channel 100. A discharge hopper 21 is installed at the rear end of the frame 10. The green skin and kernels of the Torreya nuts are output from the discharge hopper 21. The discharge hopper 21 is located below the third conveyor belt 15.

Claims

1. A pretreatment device for separating the peel and fruit of immature Torreya grandis, comprising a frame (10) and a first conveyor belt (11) mounted on the frame (10), characterized in that: The frame (10) is also equipped with a pressure roller adjustment device, which includes a pressure roller height adjustment component (12) and multiple pressure rollers (13). Each pressure roller (13) has a pressure roller height adjustment component (12) installed at both ends. The pressure roller (13) is located directly above the first conveyor belt (11), and a compression channel (100) for extruding Torreya grandis is formed between the two. The first conveyor belt (11) and the pressure roller (13) rotate at different speeds.

2. The pretreatment equipment for separating the peel and fruit of immature Torreya grandis according to claim 1, characterized in that: The pressure roller height adjustment component (12) includes a first slider (121), a locking component (124), and a first adjusting rod (122) threadedly connected to the frame (10). The pressure roller (13) is mounted on the first slider (121) via a bearing. A first guide rail (101) is mounted on the frame (10). The first slider (121) is mounted on the first guide rail (101). One end of the first adjusting rod (122) is connected to the first slider (121), and the other end extends out of the frame (10) and is connected to a first rotating handle (123). The locking component (124) is threadedly connected to the first adjusting rod (122) and fastened to the frame (10). Rotating the first adjusting rod (122) causes the first slider (121) to rise and fall along the first guide rail (101).

3. The pretreatment equipment for separating and processing immature Torreya grandis peel and fruit according to claim 2, characterized in that: The frame (10) has side frames (102) on both sides, and multiple fixing plates (103) are provided on the side frames (102). First guide rails (101) are installed on both sides of the fixing plates (103), and the first slider (121) is set between the two fixing plates (103) through the first guide rails (101).

4. The pretreatment equipment for separating the peel and fruit of immature Torreya grandis according to claim 1, characterized in that: The rotation direction of the first conveyor belt (11) is opposite to the rotation direction of all the pressure rollers (13).

5. The pretreatment equipment for separating the peel and fruit of immature Torreya grandis according to claim 1, characterized in that: The pressure roller (13) has a protrusion (131) on its circumferential surface for breaking the outer shell of the Torreya grandis.

6. A pretreatment device for separating the peel and fruit of immature Torreya grandis according to any one of claims 1-5, characterized in that: The frame (10) is also equipped with a second conveyor belt (14) and a third conveyor belt (15). The third conveyor belt (15) is located below the second conveyor belt (14) and the first conveyor belt (11). A rear feeding area (200) is formed between the first conveyor belt (11), the second conveyor belt (14) and the third conveyor belt (15). A rubbing channel (300) communicating with the rear feeding area (200) is provided between the second conveyor belt (14) and the third conveyor belt (15). The second conveyor belt (14) and the third conveyor belt (15) rotate at different speeds.

7. The pretreatment equipment for separating unripe Torreya grandis peel and fruit according to claim 6, characterized in that: The rotation direction of the second conveyor belt (14) is opposite to that of the third conveyor belt (15), and the rotation direction of the third conveyor belt (15) is the same as that of the first conveyor belt (11).

8. The pretreatment equipment for separating the peel and fruit of immature Torreya grandis according to claim 6, characterized in that: The frame (10) is also equipped with a conveyor belt height adjustment component, which includes a second adjustment rod (16) and an adjustment frame (17). The second conveyor belt (14) is installed between the two adjustment frames (17) by a pin. Both ends of the adjustment frame (17) are connected to the second adjustment rod (16) which is threaded to the frame (10). The other end of the second adjustment rod (16) extends out of the frame (10) and is connected to a second rotating handle (18).

9. The pretreatment equipment for separating the peel and fruit of immature Torreya grandis according to claim 8, characterized in that: A tensioning assembly (19) is installed on the adjusting frame (17). The tensioning assembly (19) is connected to the pin of the second conveyor belt (14). The tensioning assembly (19) includes a second slider (191) and a third adjusting rod (192). The pin of the second conveyor belt (14) is installed between two second sliders (191) through bearings. A second guide rail (171) is installed on the adjusting frame (17). The second slider (191) slides on the second guide rail (171). The third adjusting rod (192) is threadedly connected to the adjusting frame (17) and drives the second slider (191) to move left and right on the second guide rail (171).

10. The pretreatment equipment for separating the peel and fruit of immature Torreya grandis according to claim 6, characterized in that: The front end of the frame (10) is equipped with a feed hopper (20), which is located above the first conveyor belt (11) and close to the inlet end of the extrusion channel (100); the rear end of the frame (10) is equipped with a discharge hopper (21), which is located below the third conveyor belt (15).

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