Automatic stem shearing device for shiitake mushroom production
By designing the box, shell, and top plate, and combining the indexing mechanism with an alloy steel turntable and cutter, the mushroom stem-cutting device achieves safe and efficient operation, solving the safety hazards and low efficiency problems of existing devices, and adapting to large-scale production.
Patent Information
- Application Number
- CN202520466610.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing mushroom stem-cutting devices have high safety risks and low efficiency during operation, making it difficult to meet the needs of large-scale production.
Design an automated stem-cutting device comprising a box, a shell, and a top plate. It employs an indexing mechanism to drive the rotating shaft to rotate intermittently, combined with an alloy steel turntable and a cutting blade, to simultaneously cut multiple mushroom stems.
It improves operational safety and efficiency, ensures simultaneous cutting of multiple shiitake mushroom stems, adapts to shiitake mushroom stems of different sizes, reduces temperature rise, and extends equipment life.
Smart Images

Figure CN223886165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shiitake mushroom production technology, specifically to an automated stem-cutting device for shiitake mushroom production. Background Technology
[0002] There is a close relationship between shiitake mushroom production and stem trimming. As a key step in shiitake mushroom processing, stem trimming directly affects the product's quality and market value. In shiitake mushroom production, stem trimming is not only to improve the appearance but also to meet consumers' demand for high-quality edible fungi.
[0003] Utility model patent CN202321818169.9 discloses a mushroom stem-cutting machine, which includes a base frame; two support plates fixed to the top of the base frame on both sides; a horizontal plate fixed to the end of the support plates; a motor fixed to the bottom of the horizontal plate; a cutter disposed at the top of the horizontal plate; and blades fixedly connected to the output shaft of the motor and located at the top of the horizontal plate. This utility model provides a mushroom stem-cutting machine that facilitates stem cutting for users, is highly efficient, produces uniform stem lengths after cutting, prevents the cut from aging, and results in better quality. It can also adapt to various stem length requirements, offering better adaptability and ease of use.
[0004] Although the mushroom stem-cutting machine facilitates stem-cutting operations, it suffers from several drawbacks in practical use. The operator must place the mushroom stem on the blade and guide it through the groove before the blade rotates to cut it. However, this design presents two significant problems: first, the blade continuously rotates during the cutting process, increasing the operator's risk of contact and posing a high safety hazard; second, the device can only process one mushroom at a time, resulting in low efficiency and hindering large-scale production. Therefore, this stem-cutting method is deficient in both safety and efficiency. To address this, we propose an automated stem-cutting device for mushroom production. Utility Model Content
[0005] To solve the above problems, this utility model provides an automated stem-cutting device for shiitake mushroom production.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] An automated scissor-cutting device for shiitake mushroom production includes a box, a shell, and a top plate that are fixedly connected from bottom to top.
[0008] The box has a hollow structure and an indexing mechanism inside; a mounting bracket is fixed to the bottom of the box, and a motor is installed in the opening of the mounting bracket.
[0009] The top and bottom of the shell are both transparent. A guide cover is fixed to the bottom of the shell, and multiple partitions are fixed to the top of the guide cover. A turntable is rotatably installed at the top of the shell. Multiple cutters for shear handles are fixed to the outer wall of the turntable, and notches are opened between adjacent cutters. A rotating shaft is coaxially connected to the bottom of the turntable. The rotating shaft passes through the guide cover and is rotatably connected to the guide cover. The bottom end of the rotating shaft is inserted into the box and driven by the indexing mechanism to achieve intermittent rotation.
[0010] The top of the top plate has multiple positioning holes for inserting mushroom stems, and the positioning holes are located directly above the corresponding notches.
[0011] Furthermore, the indexing mechanism includes a grooved wheel coaxially keyed to the rotating shaft. The outer wall of the grooved wheel is provided with multiple concave locking arcs, and a radial groove is provided between two adjacent concave locking arcs. A convex locking arc is provided on one side of the grooved wheel, and the convex locking arc is rotatably connected to the corresponding concave locking arc. A groove is provided on one side wall of the convex locking arc, and an active dial is coaxially fixed to the bottom of the convex locking arc. A cylindrical pin is fixed to the top of the active dial at one side of the groove.
[0012] Furthermore, the turntable and the cutter are integrally formed structures, and both the turntable and the cutter are made of alloy steel.
[0013] Furthermore, the overall shape of the guide cover is conical, and the guide cover has an opening at the bottom.
[0014] Furthermore, the outer wall of the shell is provided with multiple discharge grooves at the bottom end, and the discharge grooves are connected to the cavities between two adjacent partitions.
[0015] Furthermore, a limiting ring is fixed to the top of the housing, and the limiting ring has a ring-shaped cross-section.
[0016] Furthermore, the front and rear walls of the housing are provided with multiple heat dissipation grooves, and the cross-sectional shape of the heat dissipation grooves is rectangular.
[0017] Furthermore, the positioning hole has a circular cross-sectional shape and a diameter of 7-9 mm.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] The design utilizes a box, shell, and top plate: mushroom stems are inserted into positioning holes. When the motor runs, the indexing mechanism drives the rotating shaft to rotate intermittently. Due to the linkage between the indexing mechanism and the rotating shaft, the rotating shaft precisely indexes within a preset angle range and stops periodically. When the motor's output shaft rotates one revolution, it can drive the rotating shaft and turntable to rotate one-sixth of a revolution. When multiple cutters rotate one-sixth of a revolution, the cutters pass just below the positioning holes. Under the action of the cutters, multiple mushroom stems can be cut simultaneously. This design ensures operational safety and allows for automated stem cutting of multiple mushrooms simultaneously, improving operational efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0022] Figure 3 This is a top view of the top plate structure in this utility model;
[0023] Figure 4 This is a schematic diagram of the material guide cover in this utility model;
[0024] Figure 5 This is a partial structural schematic diagram of the present invention;
[0025] Figure 6 This is a schematic diagram of the structure of the grooved wheel in this utility model;
[0026] In the picture:
[0027] 1. Housing; 10. Heat dissipation groove; 11. Active dial; 110. Cylindrical pin; 12. Convex locking anti-arc; 120. Groove; 13. Grooved wheel; 130. Radial groove; 131. Concave locking anti-arc; 14. Mounting bracket; 15. Motor; 16. Limiting ring;
[0028] 2. Housing; 20. Discharge chute; 21. Guide cover; 22. Baffle; 23. Turntable; 230. Cutter; 24. Shaft;
[0029] 3. Top plate; 30. Positioning holes. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0031] Example 1
[0032] Please see Figures 1-6 As shown, an automated pruning shearing device for shiitake mushroom production includes a box body 1, a shell 2, and a top plate 3, which are fixedly connected from bottom to top. The shell 2 is fixedly connected to the box body 1 and the top plate 3 by bolts. The box body 1 has a hollow structure, and an indexing mechanism is provided inside the box body 1. The indexing mechanism includes a grooved wheel 13 coaxially keyed to a rotating shaft 24. The outer wall of the grooved wheel 13 has multiple concave locking arcs 131, and a radial groove 130 is provided between two adjacent concave locking arcs 131. A convex locking mechanism is provided on one side of the grooved wheel 13. Arc 12, the convex locking arc 12 is rotatably connected to the corresponding concave locking arc 131. A groove 120 is provided on one side wall of the convex locking arc 12. An active dial 11 is coaxially fixed at the bottom of the convex locking arc 12. A cylindrical pin 110 is fixed at the top of the active dial 11 on one side of the groove 120. This design realizes the intermittent rotation of the rotating shaft 24 through the cooperation of the groove wheel 13 and the active dial 11. The structure is simple and the operation is stable. It is suitable for the periodic operation of mushroom stem cutting, and at the same time improves the indexing accuracy and reliability. A mounting bracket 14 is fixed to the bottom of the inner part of the housing 1, and a motor 15 is installed in the opening of the mounting bracket 14. The top and bottom of the housing 2 are both transparent. A guide cover 21 is fixed to the bottom of the inner part of the housing 2, and multiple partitions 22 are fixed to the top of the guide cover 21. A turntable 23 is rotatably installed at the top of the inner part of the housing 2. Multiple cutters 230 for cutting the stem are fixed to the outer wall of the turntable 23. A notch is opened between two adjacent cutters 230. A rotating shaft 24 is coaxially connected to the bottom of the turntable 23. The rotating shaft 24 passes through the guide cover 21 and is rotatably connected to the guide cover 21. The bottom end of the rotating shaft 24 is inserted into the housing 1 and driven by the indexing mechanism to achieve intermittent rotation. Multiple positioning holes 30 for inserting mushroom stems are opened on the top of the top plate 3. The positioning holes 30 are located directly above the corresponding notches.
[0033] In this embodiment, the turntable 23 and the cutter 230 are integrally formed structures, and both the turntable 23 and the cutter 230 are made of alloy steel. The integrally formed structure and the fact that it is made of alloy steel enhance the overall strength and durability of the turntable 23 and the cutter 230, while ensuring the service life of the turntable 23 and the cutter 230.
[0034] In this embodiment, the guide cover 21 has an overall cone shape and an open bottom. The cone shape facilitates the guidance of the mushroom stems to the discharge trough 20 for discharge, and the open bottom design has the advantage of saving materials.
[0035] In this embodiment, the outer wall of the housing 2 has multiple discharge troughs 20 at its bottom end, and the discharge troughs 20 are connected to the cavities between two adjacent partitions 22. This structure enables efficient collection and discharge of shear handle waste, optimizing the equipment's workflow and cleaning efficiency.
[0036] In this embodiment, a limiting ring 16 is fixed to the top of the housing 1, and the limiting ring 16 has a ring-shaped cross-section. The limiting ring 16 facilitates the collection of shear handle waste material discharged through the discharge chute 20.
[0037] In this embodiment, multiple heat dissipation slots 10 are provided on both the front and rear walls of the enclosure 1, and the cross-sectional shape of the heat dissipation slots 10 is rectangular. The heat dissipation slots 10 effectively reduce the temperature rise of the equipment inside the enclosure 1 during operation and extend its service life.
[0038] In this embodiment, the positioning hole 30 has a circular cross-sectional shape and a diameter of 7-9 mm. The preferred diameter of the positioning hole 30 is 8 mm. This design adapts to different mushroom stem sizes, ensuring accurate positioning of the mushroom stem, improving the precision and applicability of stem-cutting operations, and reducing operational errors.
[0039] It is understood that in this embodiment, the number of positioning holes 30, cutting blades 230 and radial grooves 130 are equal. This design ensures that after each mushroom stem passes through the positioning hole 30, it can be accurately aligned with the notch between adjacent cutting blades 230, avoiding deviations during the stem cutting process and improving the stem cutting accuracy. This design ensures that all components remain coordinated during operation, reducing the impact of mismatched component numbers on the mushroom stem cutting operation, and improving the stability and reliability of the equipment operation.
[0040] It should be added that before the cylindrical pin 110 on the active dial 11 enters the radial groove 130 on the grooved wheel 13, the convex locking arc 12 locks the concave locking arc 131, so the grooved wheel 13 remains stationary. When the cylindrical pin 110 enters the radial groove 130, the convex locking arc 12 and the concave locking arc 131 just separate, and the cylindrical pin 110 can drive the grooved wheel 13 to rotate. When the cylindrical pin 110 disengages from the radial groove 130, the convex locking arc 12 locks the concave locking arc 131 again, thus keeping the grooved wheel 13 stationary. Therefore, when the active dial 11 rotates continuously, the grooved wheel 13 is driven to rotate intermittently in one direction. This design allows the grooved wheel 13 to drive the rotating shaft 24, the turntable 23, and multiple cutters 230 to move synchronously and intermittently. Through the intermittent movement of the multiple cutters 230, the stem-cutting operation can be performed on multiple shiitake mushrooms simultaneously.
[0041] It is worth noting that the motor 15 involved in this embodiment is a conventional technology and will not be described in detail here.
[0042] In practical use, the user first inserts the mushroom stem through the positioning hole 30, with the bottom end of the stem inserted between the two cutters 230. Then, the user turns on the power to the motor 15, which starts working. The output shaft of the motor 15 rotates one revolution, driving the active dial 11 to rotate one revolution. The active dial 11 then drives the grooved wheel 13 to rotate one-sixth revolution. The grooved wheel 13 drives the rotating shaft 24, the rotating disk 23, and the cutters 230 to rotate one-sixth revolution. At this time, the cutters 230 pass through the mushroom stem, and the mushroom stem is cut off. Then, the user can remove the stem-removed mushroom from the top of the top plate 3. Finally, the user can repeat the above steps to remove the stems from the mushrooms.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An automated stem-cutting device for shiitake mushroom production, characterized in that: It includes a box body (1), a shell (2) and a top plate (3) that are fixedly connected from bottom to top; The box (1) has a hollow structure and an indexing mechanism is provided inside the box (1); a mounting bracket (14) is fixed to the bottom of the box (1), and a motor (15) is installed in the opening of the mounting bracket (14); The top and bottom of the shell (2) are both transparent. A guide cover (21) is fixed to the bottom of the shell (2), and multiple partitions (22) are fixed to the top of the guide cover (21). A turntable (23) is rotatably installed at the top of the shell (2). Multiple cutters (230) for shear handles are fixed to the outer wall of the turntable (23). A notch is opened between two adjacent cutters (230). A rotating shaft (24) is coaxially connected to the bottom of the turntable (23). The rotating shaft (24) passes through the guide cover (21) and is rotatably connected to the guide cover (21). The bottom end of the rotating shaft (24) is inserted into the box (1) and driven by the indexing mechanism to achieve intermittent rotation. The top plate (3) has multiple positioning holes (30) for inserting mushroom stems, and the positioning holes (30) are located directly above the corresponding notches.
2. The automated stem-cutting device for shiitake mushroom production according to claim 1, characterized in that: The indexing mechanism includes a grooved wheel (13) coaxially keyed to the rotating shaft (24). The outer wall of the grooved wheel (13) is provided with a plurality of concave locking arcs (131), and a radial groove (130) is provided between two adjacent concave locking arcs (131). A convex locking arc (12) is provided on one side of the grooved wheel (13), and the convex locking arc (12) is rotatably connected to the corresponding concave locking arc (131). A groove (120) is provided on one side wall of the convex locking arc (12). An active dial (11) is coaxially fixed at the bottom of the convex locking arc (12), and a cylindrical pin (110) is fixed at the top of the active dial (11) on one side of the groove (120). The output shaft of the motor (15) is coaxially keyed to the active dial (11).
3. The automated stem-cutting device for shiitake mushroom production according to claim 1, characterized in that: The turntable (23) and the cutter (230) are integrally formed structures, and both the turntable (23) and the cutter (230) are made of alloy steel.
4. The automated stem-cutting device for shiitake mushroom production according to claim 1, characterized in that: The overall shape of the guide cover (21) is conical, and the guide cover (21) has an open bottom.
5. The automated mushroom pruning device according to claim 1, characterized in that: The outer wall of the shell (2) is provided with a plurality of discharge grooves (20) at the bottom end, and the discharge grooves (20) are connected to the cavity between the two adjacent partitions (22).
6. The automated stem-cutting device for shiitake mushroom production according to claim 1, characterized in that: A limiting ring (16) is fixed to the top of the box (1), and the cross-sectional shape of the limiting ring (16) is ring-shaped.
7. The automated stem-cutting device for shiitake mushroom production according to claim 1, characterized in that: The front and rear walls of the box (1) are provided with multiple heat dissipation grooves (10), and the cross-sectional shape of the heat dissipation grooves (10) is rectangular.
8. The automated mushroom stem-cutting device for mushroom production according to claim 1, characterized in that: The positioning hole (30) has a circular cross-sectional shape and a diameter of 7-9 mm.
Citation Information
Patent Citations
Mushroom stem shearing machine
CN220403037U