Persimmon stem picking machine

Abstract

The utility model relates to a persimmon stem taking machine, including machine shell, motor, spacing frame, rotary knife rest assembly, stopper assembly and main shaft, the machine shell inside upper and lower sequentially have installed support and motor support, the main shaft is hollow, and is fixed on the installation support through the nut, the rotary knife rest assembly is installed on the main shaft through the bearing, and one end stretches out the machine shell outside, the motor is installed on the motor support, and is rotatably connected with the rotary knife rest assembly through the belt, the stopper assembly moves and is installed in the main shaft, and one end stretches out the rotary knife rest assembly outside, the other end stretches out the main shaft outside, and is limited through spacing frame. The utility model has the characteristics of simple structure, high reliability and low cost, small, convenient to use and the like.

Description

Technical Field

[0001] This utility model relates to an agricultural product processing device, specifically a persimmon stem-removing machine capable of removing the stem of a persimmon and cutting off the persimmon peel below the stem. It belongs to the field of agricultural machinery technology. Background Technology

[0002] Fuping County is a famous "Hometown of Persimmons in China". Its pointed persimmons and dried persimmons have been recognized as national geographical indication protected products. The Fuping persimmon cake making technique has been listed in the Shaanxi Provincial Intangible Cultural Heritage Protection List. Based on the traditional processing, the Fuping persimmon cake processing has added processes such as washing the fruit, removing the stem, protecting the color, preventing mold, and preventing mosquitoes and flies, which has improved the quality of the persimmon cakes.

[0003] The persimmon calyx and stem grow at the base of the persimmon tree. Depending on the variety and whether it is grown in irrigated or dry land, some persimmons are close together, some protrude, and some are concave. Most persimmons grow with their heads down on the tree and their calyx and stem up. In this case, there are pesticide residues, insect eggs, and black streaks left by physiological abnormalities between the calyx and the persimmon, which cannot be washed clean and cannot be peeled by a peeler. Therefore, there is an urgent need for a machine that can remove the calyx and cut the persimmon skin below the calyx.

[0004] The purpose of this invention is to provide a persimmon stem-removing machine that is efficient, low-cost, and capable of mass production, capable of removing the stem and cutting the skin below the stem. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a highly efficient and safe persimmon stem removal machine. It features a simple structure, high reliability, low cost, small size, and ease of use.

[0006] The technical solution of this utility model is: to provide a persimmon stem removal machine, including a machine shell, a motor, a limit frame, a rotary tool assembly, a limiter assembly and a main shaft; The machine casing contains a mounting bracket and a motor bracket installed sequentially from top to bottom. The spindle is hollow and is fixed to the mounting bracket by nuts; The rotary tool post assembly is mounted on the spindle via bearings, with one end extending outside the machine housing; The electric motor is mounted on a motor bracket and is rotatably connected to the rotating tool post assembly via a belt. The limiter assembly is movably installed inside the spindle, with one end extending outside the rotary tool post assembly and the other end extending outside the spindle, and is limited by the limiter frame.

[0007] Furthermore, the rotary tool holder assembly is made of thick-walled steel pipe, and a belt groove is provided on the outside of the thick-walled steel pipe. A twig removal blade is installed at the front end of the thick-walled steel pipe through a twig removal blade mounting plate. A belt is installed in the belt groove on the rotary tool holder assembly, and the rotary tool holder assembly is connected to the pulley on the motor through the belt for transmission.

[0008] Furthermore, the rotary tool holder assembly has an inverted triangular belt groove on one end and two symmetrical pedicle removal blade mounting plates welded to the other end, with a pedicle removal blade mounted on each mounting plate; the belt is a V-belt corresponding to the belt groove.

[0009] Furthermore, the pedicle removal blade includes a blade fixing surface, a blade cutting surface, and a cutting edge. The blade fixing surface and the blade cutting surface form an angle of 75-90 degrees, and the cutting edge is located at the end of the blade cutting surface.

[0010] Furthermore, the limiter assembly is welded together from a limiter rod and a protective tube. One end of the protective tube extends out of the rotating tool holder assembly. A spring is fitted on the limiter rod, and the end of the limiter rod has a thread. An adjusting sleeve is connected to the limiter rod through the thread, and the adjusting sleeve is locked to the limiter rod by a locking nut.

[0011] Furthermore, there are two bearings, with a spacer sleeve between them, which are installed sequentially on the main shaft and limited by a shaft retaining spring.

[0012] Furthermore, the rotating tool post assembly mounted on the bearing is limited by a retaining ring through the hole.

[0013] Furthermore, bearing sleeves are fixedly installed at both ends of the spindle, and limiter assemblies are movably installed in the middle hole of the bearing sleeves.

[0014] Furthermore, a dust cover and a safety guard are sequentially installed on the housing extending outside the machine casing of the rotary tool holder assembly; the protective tube of the limiter assembly extends outside the inlet of the safety guard.

[0015] Furthermore, the safety cover is made of stainless steel plate welded together and has an arched structure with a baffle at the front end, and the baffle is provided with a persimmon inlet.

[0016] Compared with existing technologies, the advantages of this invention are: placing the persimmon stem inside the protective tube of the limiter assembly ensures it is not broken or cut off by the stem-removing blade; the tube is made of stainless steel, increasing its strength. The distance between the limiter assembly and the limiter frame is adjusted using an adjusting sleeve and a locking nut, ensuring the thickness of the peel after stem removal. Multiple protective covers are provided for each machine, and the inlet can be changed according to the size of the persimmon for convenience and safety. Because only one rotating blade assembly rotates, there are fewer malfunctions and maintenance is simple. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a structural schematic diagram of the rotary tool post assembly of this utility model; Figure 4 This is a schematic diagram of the pedicle removal blade of this utility model: Figure 5 This is a schematic diagram of the limiter assembly of this utility model: Figure 6 This is a schematic diagram of the structure of the safety shield of this utility model: In the diagram: 1. Machine housing; 2. Motor; 3. Limiting bracket; 4. Mounting bracket; 5. Spacer sleeve; 6. Rotary tool post assembly; 7. Dust cover; 8. Safety guard; 9. Limiting device assembly; 10. Shaft circlip; 11. Bearing; 12. Hole circlip; 13. Spindle; 14. Nut; 15. Bearing sleeve; 16. Belt; 17. Motor bracket; 18. Pulley; 6-1. Belt groove; 6-2. Stem removal knife mounting plate; 6-3. Stem removal blade; 6-3-1. Blade fixing surface; 6-3-2. Blade cutting edge; 6-3-3. Blade edge; 9-1. Adjusting sleeve; 9-2. Locking nut; 9-3. Limiting rod; 9-4. Spring; 9-5. Protective tube. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1 like Figure 1 and Figure 2As shown, this utility model discloses a persimmon stem-removing machine, comprising a machine housing 1, a motor 2, a limiting frame 3, a rotating blade assembly 6, a limiter assembly 9, and a main shaft 13. A mounting bracket 4 and a motor bracket 17 are sequentially installed inside the machine housing 1. The main shaft 13 is hollow and fixed to the mounting bracket 4 by a nut 14. The rotating blade assembly 6 is mounted on the main shaft 13 via a bearing 11, with one end extending outside the machine housing 1. The motor 2 is mounted on the motor bracket 17 and rotatably connected to the rotating blade assembly 6 via a belt 16. The limiter assembly 9 is movably installed inside the main shaft 13, with one end extending outside the rotating blade assembly 6 and the other end extending outside the main shaft 13, and is limited by the limiting frame 3.

[0020] Preferably, the limiting frame 3 is The limit frame 3 is a three-dimensional structure that is fixed to the mounting bracket 4 with bolts. As long as it can limit the limiter assembly 9, the limit frame 3 can also be of other forms.

[0021] Furthermore, the electric motor 2 and the rotating tool post assembly 6 are not on the same side.

[0022] Preferred, such as Figure 1 As shown, both the mounting bracket 4 and the motor bracket 17 are "I" shaped. The main shaft 13 passes through the middle support plate of the mounting bracket 4, and the rotating shaft of the motor 2 passes through the middle support plate of the motor bracket 17.

[0023] Furthermore, the outer wall of one end of the spindle 13 is provided with threads and a step, the end face of the step is in close contact with one side of the support plate of the mounting bracket 4, and the threaded end passes through the hole in the support plate, and the spindle 13 is fixed to the mounting bracket 4 by the nut 14.

[0024] Furthermore, the rotary tool holder assembly 6 is made of thick-walled steel pipe, and a belt groove 6-1 is provided on the outside of the thick-walled steel pipe. A twig removal blade 6-3 is installed at the front end of the thick-walled steel pipe through a twig removal blade mounting plate 6-2. A belt 16 is installed in the belt groove 6-1 on the rotary tool holder assembly 6, and the rotary tool holder assembly 6 is connected to the pulley 18 on the motor 2 through the belt 16.

[0025] further, Figure 3 This is a schematic diagram of the rotary tool post assembly, in which... Figure 3 Figure (a) is a right view of Figure (b), but the blade cutting face 6-3-2 and the cutting edge 6-3-3 are not shown in Figure (a), as... Figure 3 As shown, the rotating blade assembly 6 has an inverted triangular belt groove 6-1 on one end and two symmetrical pedicle removal blade mounting plates 6-2 welded to the other end, with a pedicle removal blade 6-3 mounted on each pedicle removal blade mounting plate 6-2; the belt 16 is a V-belt, corresponding to the belt groove 6-1.

[0026] further, Figure 4 This is a schematic diagram of the pedicle removal blade, in which... Figure 4 Figure (b) is the right view of Figure (a), and Figure (c) is the bottom view of Figure (a), as shown below. Figure 4 As shown, the pedicle removal blade 6-3 includes a blade fixing surface 6-3-1, a blade cutting surface 6-3-2, and a cutting edge 6-3-3. The blade fixing surface 6-3-1 and the blade cutting surface 6-3-2 form an angle of 75-90 degrees, and the cutting edge 6-3-3 is located at the end of the blade cutting surface 6-3-2.

[0027] Furthermore, the blade fixing surface 6-3-1 is fixed to the pedicle removal knife mounting plate 6-2 by screws.

[0028] Furthermore, the stalk-removing blade 6-3 is made of 0.7mm thick carbon steel. The blade fixing surface 6-3-1 and the blade cutting surface 6-3-2 are formed by bending at 75-90 degrees, and the head of the cutting edge 6-3-3 is slightly curved inward.

[0029] For persimmons with a prominent stem end, a blade with a large bending angle (6-3-2) is suitable, typically an 80-degree bending angle (6-3-2). When installing, the stem-mounted blade (6-3) should be bent outwards.

[0030] Furthermore, such as Figure 5 As shown, the limiter assembly 9 is welded together from the limiter rod 9-3 and the protective tube 9-5. One end of the protective tube 9-5 extends out of the rotating tool holder assembly 6. A spring 9-4 is fitted on the limiter rod 9-3. The end of the limiter rod 9-3 has a thread, and an adjusting sleeve 9-1 is connected to it through the thread. The adjusting sleeve 9-1 is locked to the limiter rod 9-3 by a locking nut 9-2.

[0031] Furthermore, the limiter rod 9-3 is made of stainless steel, preferably 8mm in diameter; Furthermore, the protective tube 9-5 is a stainless steel tube, preferably a stainless steel tube with a diameter of 22mm and a wall thickness of 1mm, used to protect the persimmon stem.

[0032] Furthermore, there are two bearings 11, with a spacer sleeve 5 between them. They are installed on the main shaft 13 in sequence and are limited by the shaft retaining spring 10.

[0033] Furthermore, the rotary tool post assembly 6 mounted on the bearing 11 is limited by a retaining ring 12 through the hole.

[0034] Furthermore, bearing sleeves 15 are fixedly installed at both ends of the spindle 13, and limiter assembly 9 is movably installed in the middle hole of the bearing sleeve 15.

[0035] Preferably, the bearing sleeve 15 is a powder metallurgy oil-impregnated bearing copper sleeve.

[0036] Furthermore, a dust cover 7 and a safety guard 8 are sequentially installed on the outer shell of the rotating tool holder assembly 6, which extends out of the machine housing 1; the protective tube 9-5 of the limiter assembly 9 extends out of the inlet of the safety guard 8.

[0037] Furthermore, the dust cover 7 is a plastic dust cover, used to prevent dust or residue from falling into the housing or rotating tool holder assembly 6 after shearing.

[0038] further, Figure 6 This is a structural diagram of the safety shield, in which, Figure 6 Figure (b) is a bottom view of Figure (a), as shown below. Figure 6 As shown, the safety cover 8 is an arched structure welded from stainless steel plates with a baffle at the front end. The baffle has a persimmon inlet. The size of the persimmon inlet depends on the size of the persimmon. The persimmon is placed into the protective tube 9-5 of the limiter assembly 9 through the persimmon inlet. After being cut, the persimmon stem falls out of the safety cover 8 and is collected.

[0039] Furthermore, the safety guard 8 is detachable, so that one persimmon stem removal machine can be equipped with several guards, and the guards can be changed according to the size of the persimmons, which is convenient and safe.

[0040] During operation: The motor 2 drives the rotating blade assembly 6 to rotate at high speed. Hold the persimmon by hand and place it into the protective tube 9-5 of the limiter assembly 9. Gently press the persimmon and limiter assembly 9 inward. After contacting the high-speed rotating stem-removing blade 6-3, the persimmon stem and peel are cut off and discharged from the lower outlet of the safety cover 8 under the high-speed centrifugal force of the stem-removing blade mounting plate 6-2, thus completing the operation.

[0041] Example 2 Based on Example 1, such as Figure 1As shown, a persimmon stem-removing machine includes a machine housing 1, a motor 2, a limiting frame 3, a mounting bracket 4, a rotating blade assembly 6, a plastic dust cover, a safety guard 8, a limiter assembly 9, and a main shaft 13. The main shaft 13 is fixed to the mounting bracket 4 with a nut 14. A bearing 11 and a spacer sleeve 5 are mounted on the main shaft 13 and limited by a shaft retaining spring 10. The rotating blade assembly 6 is mounted on the bearing 13 and limited by a hole retaining spring 12. Stem-removing blades 6-3 are mounted on the rotating blade assembly 6. The belt groove 6-1 of the rotating blade assembly 6 is connected to the pulley on the motor 2 mounted below the main shaft by a V-belt drive. The spindle 13 is hollow. Powder metallurgy oil-impregnated bearing copper sleeves are fixedly installed at both ends. The limiter assembly 9 is movably installed in the middle hole of the powder metallurgy oil-impregnated bearing copper sleeve. The limiter 3 is fixedly installed on the mounting bracket 4. The mounting bracket 4 is fixed to the machine housing 1 with screws. A plastic dust cover 7 and a safety guard 8 are installed on the other side of the machine housing 1.

[0042] During operation: After picking, the persimmon stem is cut into a T-shape with a horizontal length of 10-16mm to prevent it from falling off when hanging persimmon cakes. The rotating blade assembly 6 is driven by motor 2 to rotate at high speed. Hold the persimmon stem and place it into the protective tube 9-5 of the stainless steel tube of the limiter assembly 9. Gently press the persimmon and limiter assembly 9 inward. After contacting the high-speed rotating stem-removing blade 6-3, the persimmon stem and skin are cut off and discharged from the outlet of the safety cover 8 under the high-speed centrifugal force of the stem-removing blade mounting plate 6-2, completing the operation.

[0043] Example 3 Based on Example 2, such as Figure 2 Figure 3 As shown, a persimmon stem-removing machine includes a rotating blade assembly 6, which is machined from a thick-walled steel pipe. One side has a belt groove 6-1, and the other end is welded with two symmetrical stem-removing blade mounting plates 6-2. Stem-removing blades 6-3 are mounted on the mounting plates 6-2. The stem-removing blades 6-3 are made of 0.7mm thick carbon steel and bent at 75-90 degrees, with a slight inward curve at the blade tip. During operation, different angles of the stem-removing blades 6-3 are used depending on the variety and shape of the persimmon. For protruding stems, a 90-degree blade 6-3 is used, while a deeply recessed blade 6-3 is selected. Choosing different angles of the blades 6-3 for different persimmon shapes ensures clean removal of the stem and skin. The slight inward curve at the blade tip leaves no marks after cutting.

[0044] Example 4 Based on Example 3, such as Figure 4The diagram shows a persimmon stem-removing machine, which includes at least a limiter assembly 9. This assembly is welded together from an 8mm diameter limiter rod 9-3 (stainless steel limiter rod) and a 22mm diameter, 1mm wall thickness protective tube 9-5 (stainless steel tube). A spring 9-4 is fitted onto the limiter rod 9-3. The threaded end of the limiter rod 9-3 is fitted with an adjusting sleeve 9-1 and a locking nut 9-2. During operation, the persimmon stem is placed inside the protective tube 9-5, protecting it from being broken or cut by the stem-removing blade 6-3. The adjusting sleeve 9-1 and locking nut 9-2 on the limiter rod 9-3 are adjusted to ensure the persimmon peel is of appropriate thickness after stem removal. The spring 9-4 fitted onto the limiter rod 9-3 should not be too stiff, as this would be difficult to work with; it only needs to be stiff enough to return the limiter assembly 9 to its original position after the operation is completed.

[0045] like Figure 5 The diagram shows a persimmon stem-removing machine, which includes at least a safety guard 8 welded from stainless steel plates. The size of the persimmon inlet depends on the size of the persimmon. During operation, the safety guard 8 is replaced, and the persimmon inlet is 10mm larger than the persimmon, ensuring both safety and ease of operation.

[0046] After harvesting, the persimmon stem is cut into a T-shape with a horizontal length of 10-16mm to prevent it from falling off when hanging on the persimmon cake. The stem is placed inside a stainless steel tube to prevent it from being broken or cut off by the stem-removing blade. The distance between the limiter assembly and the limiter is adjusted using an adjusting sleeve and locking nut to ensure the thickness of the peel after stem removal. Each machine is equipped with several protective covers, and the inlet is interchangeable according to the size of the persimmon for convenience and safety. Because only one rotating blade assembly rotates while the main shaft remains stationary, there are fewer malfunctions and maintenance is simple.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A persimmon stem removal machine, characterized in that: Includes machine housing, motor, limit frame, rotary tool post assembly, limit switch assembly and spindle; The machine casing contains a mounting bracket and a motor bracket installed sequentially from top to bottom. The spindle is hollow and is fixed to the mounting bracket by nuts; The rotary tool post assembly is mounted on the spindle via bearings, with one end extending outside the machine housing; The electric motor is mounted on a motor bracket and is rotatably connected to the rotating tool post assembly via a belt. The limiter assembly is movably installed inside the spindle, with one end extending outside the rotary tool post assembly and the other end extending outside the spindle, and is limited by the limiter frame.

2. The persimmon stem-removing machine according to claim 1, characterized in that: The rotary tool holder assembly is made of thick-walled steel pipe. The outside of the thick-walled steel pipe is provided with a belt groove. The front end of the thick-walled steel pipe is equipped with a twig removal blade through a twig removal blade mounting plate. A belt is installed in the belt groove on the rotary tool holder assembly. The rotary tool holder assembly is connected to the pulley on the motor through the belt.

3. A persimmon stem-removing machine according to claim 2, characterized in that: The rotary tool holder assembly has an inverted triangular belt groove on one end and two symmetrical pedicle removal blade mounting plates welded to the other end, with a pedicle removal blade mounted on each mounting plate; the belt is a V-belt corresponding to the belt groove.

4. A persimmon stem-removing machine according to claim 3, characterized in that: The pedicle removal blade includes a blade fixing surface, a blade cutting surface, and a cutting edge. The blade fixing surface and the blade cutting surface form an angle of 75-90 degrees, and the cutting edge is located at the end of the blade cutting surface.

5. A persimmon stem-removing machine according to claim 1, characterized in that: The limiter assembly is welded together from a limiter rod and a protective tube. One end of the protective tube extends out of the rotating tool holder assembly. A spring is fitted on the limiter rod. The end of the limiter rod has a thread, and an adjusting sleeve is connected to it through the thread. The adjusting sleeve is locked to the limiter rod by a locking nut.

6. A persimmon stem-removing machine according to claim 1, characterized in that: The bearings consist of two parts, separated by a spacer sleeve. They are installed sequentially on the main shaft and are limited by a shaft retaining spring.

7. A persimmon stem-removing machine according to claim 1, characterized in that: The rotary tool post assembly mounted on the bearing is limited by a retaining ring through the hole.

8. A persimmon stem-removing machine according to claim 1, characterized in that: Bearing sleeves are fixedly installed at both ends of the spindle, and limiter assemblies are movably installed in the middle hole of the bearing sleeves.

9. A persimmon stem-removing machine according to claim 1, characterized in that: A dust cover and a safety guard are sequentially installed on the housing that extends out of the machine casing of the rotary tool post assembly; the protective tube of the limiter assembly extends out of the inlet of the safety guard.

10. A persimmon stem-removing machine according to claim 9, characterized in that: The safety cover is an arched structure made of stainless steel plates welded together, with a baffle at the front end. The baffle has an inlet for persimmons to enter.

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