Wind power grading machine with grading and subpackaging functions
By designing a protective installation mechanism and a feeding protection mechanism in the wind selection machine, a built-in vibration base and lifting shield, the problems of vibration noise and wolfberry drop are solved, and the comfort and tidyness of the processing environment are improved.
Patent Information
- Application Number
- CN202411449352.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The exposure of vibrating parts of the wind selector to the outside causes noise pollution and falling wolfberry problems, affecting the processing environment and production efficiency.
A wind selection machine with a graded and packaged assembly is designed. The vibration base and lifting shield are built into the protective cover. The sound-absorbing cotton is used to absorb noise, and the feeding protection mechanism is used to protect the wolfberry from dust during transmission. and wolfberry falls.
It effectively reduces noise pollution, improves the working comfort of staff and the neatness of wolfberry, and ensures the safety of the processing environment and the stability of production.
Smart Images
Figure CN119187019A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of food processing equipment, in particular to a grading and packaging wind-powered sorting machine. Background Art
[0002] The production of wolfberry and other foods requires food processing operations such as cleaning and screening. When screening wolfberries, a wind sorter is required. The wind sorter consists of a lifting component, a vibrating component and a wind grading device. The wolfberries are transferred to the vibrating component through the lifting component. The vibrating component pre-treats the wolfberries, and then they are transferred to the wind grading equipment. They are graded and transmitted according to the size of the wolfberries.
[0003] According to CN202123100512.X, the utility model discloses a wind sorting machine for agricultural product processing, including a base, a fan is fixedly provided on the top of the base, an air intake pipe is fixedly provided on the top of the fan, and the inner wall of the fan is connected with the inner wall of the air intake pipe, a dust reduction pipe is fixedly provided at one end of the air intake pipe, a sealing ring is sleeved at the middle position of the outer wall of the dust reduction pipe, a dust suction pipe is fixedly provided at one end of the outer wall of the dust reduction pipe, and the inner wall of the dust reduction pipe is connected with the inner wall of the dust suction pipe, a dust box is fixedly provided at the bottom of the dust reduction pipe, and the inner wall of the dust reduction pipe is connected with the inner wall of the dust box, the inner wall of the air intake pipe, the inner wall of the dust reduction pipe, the inner wall of the dust suction pipe and the inner wall of the air sorting machine body form an internal air circulation system, smaller impurity dust is adsorbed by the dust suction pipe, and then the fine dust is sprayed with water vapor through the steam spray ring. This product can carry out dust reduction treatment on most dust in agricultural product processing and optimize the processing environment.
[0004] However, the vibration components on the wind sorting machine are generally arranged on the outside of the equipment. The vibration components generally pre-treat the wolfberries by continuously vibrating the vibration components. Since the vibration components are exposed to the outside of the equipment, the vibration components will generate a lot of noise during operation, which affects the processing and production of wolfberries. At the same time, when the wolfberries vibrate, they are likely to fall to the outside of the equipment, affecting the processing environment. Summary of the invention
[0005] In view of this, the present invention provides a grading and packaging wind power sorting machine, which has.
[0006] The present invention provides a purpose and function of a grading and packaging wind-powered sorting machine, which specifically includes: a sorting base, a conveying base, a lifting component, a conveying belt, a sorting component, a vibrating base, an adsorption component, a protective shield, a lifting shield, a protective installation mechanism and a feeding protection mechanism; the conveying base is fixedly connected to the right end face of the sorting base; the lifting component is located on the left side of the sorting base; the conveying belt is fixedly connected to the upper end face of the conveying base; the sorting component is fixedly connected to the upper end face of the conveying belt; the vibrating base slides on the upper end face of the sorting base; the adsorption component is fixedly connected to the right side of the upper end face of the sorting base; the protective shield is located on the upper end face of the sorting base, the protective shield is located on the outside of the vibrating base, and the inner end face of the protective shield is provided with sound-absorbing cotton; the lifting shield is located on the left side of the protective shield, and the lifting shield is located on the outside of the lifting component; the protective installation mechanism is arranged on the protective shield; and the feeding protection mechanism is arranged on the lifting shield.
[0007] Furthermore, the protective mounting mechanism includes: a vibration slide bar and a vibration spring; the vibration slide bar is provided in four groups, the four groups of vibration slide bars are respectively fixedly connected to the four corners of the vibration base, and the four groups of vibration slide bars respectively slide inside the upper end surface of the selection base; the vibration spring is provided in four groups, the four groups of vibration springs are respectively fixedly connected to the upper end surface of the selection base, and the four groups of vibration springs are respectively elastically connected to the four groups of vibration slide bars.
[0008] Furthermore, the protective mounting mechanism also includes: mounting slots and mounting protrusions; the mounting slots are provided in four groups, and the four groups of mounting slots are respectively opened on the upper side of the outer end surface of the selection base; the mounting protrusions are provided in four groups, and the four groups of mounting protrusions are respectively fixedly connected to the four corners of the lower end surface of the protective shield, and the four groups of mounting protrusions are located inside the four groups of mounting slots.
[0009] Furthermore, the protective mounting mechanism also includes: mounting screw holes and mounting bolts; there are four groups of mounting screw holes, which are respectively opened on the upper side of the outer end surface of the selection base and in the middle of the four groups of mounting protrusions; there are four groups of mounting bolts, which are respectively threadedly connected to the inside of the four groups of mounting screw holes.
[0010] Furthermore, the protective mounting mechanism also includes: an operating shaft, an operating torsion spring and an operating guard plate; the operating shaft is rotatably connected to the inside of the front end surface of the protective shield; the operating torsion spring is fixedly connected to the inside of the front end surface of the protective shield, and the operating shaft and the operating torsion spring are elastically connected; the operating guard plate is fixedly connected to the middle position of the operating shaft, and the operating guard plate rotates on the front end surface of the protective shield.
[0011] Furthermore, the feeding protection mechanism includes: moving rollers; there are four groups of moving rollers, which are rotatably connected to the four corners inside the lower end surface of the lifting shield, and the four groups of moving rollers are rotated on the lower side of the lifting shield.
[0012] Furthermore, the feeding protection mechanism also includes: protection blocks and protection slots; there are four groups of protection blocks, which are respectively fixedly connected to the four corners of the right end surface of the lifting shield; there are four groups of protection slots, which are respectively opened on the selection base and the left end surface of the protection shield, and the four groups of protection blocks are respectively plugged and connected to the four groups of protection slots.
[0013] Furthermore, the feeding protection mechanism also includes: protective screw holes and protective bolts; there are four groups of protective screw holes, which are respectively opened on the outer end surface of the selection base and the protective cover, and four groups of protective screw holes are respectively opened in the middle position of the protective plug; there are four groups of protective bolts, which are respectively threadedly connected to the inside of the four groups of protective screw holes.
[0014] Furthermore, the feeding protection mechanism also includes: a safety shield, a safety slide and a safety spring; the safety shield is fixedly connected to the lower side of the inner end surface of the lifting shield; the safety slide is slidably connected to the lower side of the interior of the safety shield, and the safety slide slides on the lower side of the lifting shield; a total of multiple groups of safety springs are provided, and the multiple groups of safety springs are respectively fixedly connected to the interior of the safety shield, and the multiple groups of safety springs are respectively elastically connected to the safety slides.
[0015] Beneficial Effects
[0016] The present invention adopts a protective mounting mechanism to realize that the protective cover is installed on the upper side of the sorting base through mounting bolts. The protective cover protects the vibrating base inside, and the sound-absorbing cotton on the protective cover absorbs the noise on the vibrating base, thereby avoiding the problem that the vibrating base generates a large amount of noise affecting the work of the staff, reducing the noise heard by the staff, ensuring the comfort of the staff's work, and at the same time avoiding the problem that the wolfberries fall to the outside of the equipment when the wolfberries vibrate, thereby improving the comfort of the staff when using the wind sorting machine and the neatness of processing the wolfberries.
[0017] In addition, by adopting the feeding protection mechanism, the lifting cover can protect the lifting components inside, preventing dust from falling onto the wolfberries, ensuring the neatness of the wolfberries during transportation and feeding, and the safety slide plate ensures the safety of the staff when using the lifting cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.
[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0020] In the attached picture:
[0021] Figure 1It is a schematic structural diagram of a front view of a sorting machine according to an embodiment of the present invention.
[0022] Figure 2 It is a structural schematic diagram of a rear view of a sorting machine according to an embodiment of the present invention.
[0023] Figure 3 It is a structural schematic diagram of the left side of the sorting machine of an embodiment of the present invention.
[0024] Figure 4 It is a schematic structural diagram of a protective installation mechanism according to an embodiment of the present invention.
[0025] Figure 5 It is a schematic structural diagram of the detachable part of the protective shield according to an embodiment of the present invention.
[0026] Figure 6 It is a structural schematic diagram of a feeding protection mechanism according to an embodiment of the present invention.
[0027] Figure 7 It is a schematic structural diagram of a lifting shield viewed from the left according to an embodiment of the present invention.
[0028] Figure 8 It is a schematic structural diagram of the split inner end surface of the lifting shield according to an embodiment of the present invention.
[0029] Reference numerals list
[0030] 1. Selection base; 101. Installation slot; 2. Conveying base; 3. Lifting component; 4. Conveying drive belt; 5. Selection component; 6. Vibration base; 7. Adsorption component; 8. Vibration slide bar; 801. Vibration spring; 9. Protective shield; 901. Installation bump; 10. Installation screw hole; 11. Installation bolt; 12. Operating shaft; 1201. Operating torsion spring; 13. Operating guard plate; 14. Lifting shield; 1401. Moving roller; 1402. Protection plug; 15. Protection slot; 16. Protection screw hole; 17. Protection bolt; 18. Safety shield; 19. Safety slide plate; 1901. Safety spring. DETAILED DESCRIPTION
[0031] Example 1: Please refer to Figures 1 to 5 As shown:
[0032] The present invention provides a grading and packaging wind power sorting machine, comprising a sorting base 1, a conveying base 2, a lifting component 3, a conveying belt 4, a sorting component 5, a vibration base 6, an adsorption component 7, a protective shield 9, a lifting shield 14 and a protective installation mechanism; the conveying base 2 is fixedly connected to the right end surface of the sorting base 1; the lifting component 3 is located on the left side of the sorting base 1; the conveying belt 4 is fixedly connected to the upper end surface of the conveying base 2; the sorting component 5 is fixedly connected to the upper end surface of the conveying belt 4; the vibration base 6 slides on the upper end surface of the sorting base 1; the adsorption component 7 is fixedly connected to the right side of the upper end surface of the sorting base 1; the protective shield 9 is located on the upper end surface of the sorting base 1, the protective shield 9 is located on the outside of the vibration base 6, and the inner end surface of the protective shield 9 is provided with sound-absorbing cotton; the lifting shield 14 is located on the left side of the protective shield 9, and the lifting shield 14 is located on the outside of the lifting component 3; the protective installation mechanism is arranged on the protective shield 9.
[0033] Among them, the protective installation mechanism includes: a vibration slide bar 8 and a vibration spring 801; there are four groups of vibration slide bars 8, which are respectively fixedly connected to the four corners of the vibration base 6, and the four groups of vibration slide bars 8 slide respectively inside the upper end surface of the selection base 1; there are four groups of vibration springs 801, which are respectively fixedly connected to the upper end surface of the selection base 1, and the four groups of vibration springs 801 are respectively elastically connected to the four groups of vibration slide bars 8. During use, the vibration machine on the vibration base 6 drives the vibration base 6 to vibrate, the vibration of the vibration base 6 drives the vibration slide bar 8 to slide, and the sliding of the vibration slide bar 8 drives the vibration spring 801 to extend and retract.
[0034] Among them, the protective installation mechanism also includes: installation slots 101 and installation protrusions 901; there are four groups of installation slots 101, and the four groups of installation slots 101 are respectively opened on the upper side of the outer end surface of the selection base 1; there are four groups of installation protrusions 901, and the four groups of installation protrusions 901 are respectively fixedly connected to the four corners of the lower end surface of the protective shield 9, and the four groups of installation protrusions 901 are located inside the four groups of installation slots 101. During use, the protective shield 9 moves to drive the upper side of the selection base 1, and the movement of the protective shield 9 drives the installation protrusions 901 to move, and the installation protrusions 901 move into the installation slots 101.
[0035] Among them, the protective installation mechanism also includes: mounting screw holes 10 and mounting bolts 11; there are four groups of mounting screw holes 10, and the four groups of mounting screw holes 10 are respectively opened on the upper side of the outer end surface of the selection base 1 and in the middle of the four groups of mounting protrusions 901; there are four groups of mounting bolts 11, and the four groups of mounting bolts 11 are respectively threadedly connected inside the four groups of mounting screw holes 10. During use, after the mounting protrusion 901 is placed into the mounting slot 101, the mounting screw hole 10 on the mounting protrusion 901 is aligned with the mounting screw hole 10 on the selection base 1, and the mounting bolt 11 is installed inside the mounting screw hole 10, so that the protective cover 9 is installed on the upper end surface of the selection base 1.
[0036] Among them, the protective installation mechanism also includes: an operating shaft 12, an operating torsion spring 1201 and an operating guard plate 13; the operating shaft 12 is rotatably connected to the inside of the front end surface of the protective shield 9; the operating torsion spring 1201 is fixedly connected to the inside of the front end surface of the protective shield 9, and the operating shaft 12 and the operating torsion spring 1201 are elastically connected; the operating guard plate 13 is fixedly connected to the middle position of the operating shaft 12, and the operating guard plate 13 rotates on the front end surface of the protective shield 9. During use, when operating the vibration base 6 inside the protective shield 9, the staff pries the operating guard plate 13 to rotate, and the rotation of the operating guard plate 13 drives the operating shaft 12 to rotate, and the rotation of the operating shaft 12 drives the operating torsion spring 1201 to extend and retract, and the elastic reset of the operating torsion spring 1201 drives the operating guard plate 13 to rotate and reset.
[0037] Specific usage and function of the first embodiment: During use of the present invention, the vibrator on the vibration base 6 drives the vibration base 6 to vibrate, and the vibration of the vibration base 6 drives the vibration slide bar 8 to slide, and the sliding of the vibration slide bar 8 drives the vibration spring 801 to expand and contract, and the protective shield 9 moves to drive the upper side of the sorting base 1, and the movement of the protective shield 9 drives the installation protrusion 901 to move, and the installation protrusion 901 moves and is placed inside the installation slot 101. After the installation protrusion 901 is placed inside the installation slot 101, the installation screw hole 10 on the installation protrusion 901 is aligned with the installation screw hole 10 on the sorting base 1, and the installation bolt 11 is installed inside the installation screw hole 10, so that the protective shield 9 is installed on the upper end surface of the sorting base 1. When operating the vibration base 6 inside the protective shield 9, the staff bends the operating guard plate 13 to rotate, and the rotation of the operating guard plate 13 drives the operating shaft 12 to rotate, and the rotation of the operating shaft 12 drives the operating torsion spring 1201 to expand and contract, and the elastic reset of the operating torsion spring 1201 drives the operating guard plate 13 to rotate and reset, so that the protective shield 9 protects the vibration base 6 inside.
[0038] Embodiment 2:
[0039] Based on Example 1, please refer to Figures 6 to 8 As shown:
[0040] The present invention provides a grading and packaging wind-powered sorting machine, which also includes a feeding protection mechanism, which is arranged on a lifting shield 14, and includes: moving rollers 1401; a total of four groups of moving rollers 1401 are arranged, and the four groups of moving rollers 1401 are rotatably connected to the four corners inside the lower end surface of the lifting shield 14, and the four groups of moving rollers 1401 are respectively rotated on the lower side of the lifting shield 14. During use, when a staff member pushes the lifting shield 14 to move, the moving rollers 1401 are driven to move on the ground.
[0041] Among them, the feeding protection mechanism also includes: a protection plug 1402 and a protection slot 15; there are four groups of protection plugs 1402, and the four groups of protection plugs 1402 are respectively fixedly connected to the four corners of the right end face of the lifting shield 14; there are four groups of protection slots 15, and the four groups of protection slots 15 are respectively opened on the left end face of the selection base 1 and the protection shield 9, and the four groups of protection plugs 1402 are respectively plugged and connected with the four groups of protection slots 15. During use, the lifting shield 14 moves to drive the protection plug 1402 to move, and the protection plug 1402 moves and is inserted into the protection slot 15.
[0042] Among them, the feeding protection mechanism also includes: protection screw holes 16 and protection bolts 17; there are four groups of protection screw holes 16, which are respectively opened on the outer end surfaces of the sorting base 1 and the protection cover 9, and the four groups of protection screw holes 16 are respectively opened in the middle position of the protection plug 1402; there are four groups of protection bolts 17, which are respectively threadedly connected to the inside of the four groups of protection screw holes 16. During use, when the protection plug 1402 is inserted into the protection slot 15, the protection screw holes 16 on the protection plug 1402 are aligned with the protection screw holes 16 on the sorting base 1 and the protection cover 9, and the protection bolts 17 are installed in the protection screw holes 16, so that the lifting cover 14 is installed on the sorting machine, and the lifting cover 14 protects the lifting component 3 inside.
[0043] Among them, the feeding protection mechanism also includes: a safety shield 18, a safety slide plate 19 and a safety spring 1901; the safety shield 18 is fixedly connected to the lower side of the inner end surface of the lifting shield 14; the safety slide plate 19 is slidably connected to the lower side of the inside of the safety shield 18, and the safety slide plate 19 slides on the lower side of the lifting shield 14; there are a total of multiple groups of safety springs 1901, and the multiple groups of safety springs 1901 are respectively fixedly connected to the inside of the safety shield 18, and the multiple groups of safety springs 1901 are respectively elastically connected to the safety slide plates 19. During use, when the staff operates the lifting component 3, if the hand accidentally touches the lower side of the lifting shield 14, the hand will contact the safety slide plate 19 to drive the safety slide plate 19 to slide, and the sliding of the safety slide plate 19 drives the safety spring 1901 to retract and retract, and the elastic reset of the safety spring 1901 drives the safety slide plate 19 to slide and reset, so as to avoid the lifting shield 14 from hurting the staff and ensure the safety of the staff operating the lifting component 3.
[0044] Specific usage and function of the second embodiment: During the use of the present invention, when the staff pushes the lifting shield 14 to move, the moving roller 1401 moves on the ground, and the lifting shield 14 moves to drive the protective plug 1402 to move, and the protective plug 1402 moves to insert into the protective slot 15. When the protective plug 1402 is inserted into the protective slot 15, the protective screw hole 16 on the protective plug 1402 is aligned with the protective screw hole 16 on the selection base 1 and the protective shield 9, and the protective bolt 17 is installed in the protective screw hole 16, so that the lifting shield 14 can be lifted. The protective cover 14 is installed on the sorting machine, and the lifting protective cover 14 protects the lifting component 3 inside. When the staff operates the lifting component 3, if the hand accidentally touches the lower side of the lifting protective cover 14, the hand will contact the safety slide plate 19 and drive the safety slide plate 19 to slide. The sliding of the safety slide plate 19 drives the safety spring 1901 to extend and retract. The elastic reset of the safety spring 1901 drives the safety slide plate 19 to slide and reset, so as to prevent the lifting protective cover 14 from hurting the staff, ensure the safety of the staff operating the lifting component 3, and realize the protection of the lifting component 3 by the lifting protective cover 14.
Claims
1. A wind power sorting machine for grading and packaging, comprising: A selection base (1), a conveying base (2), a lifting component (3), a conveying belt (4), a selection component (5), a vibration base (6), an adsorption component (7), a protective shield (9), a lifting shield (14), a protective installation mechanism and a feeding protection mechanism; the conveying base (2) is fixedly connected to the right end surface of the selection base (1); characterized in that the lifting component (3) is located on the left side of the selection base (1); the conveying belt (4) is fixedly connected to the upper end surface of the conveying base (2); the selection component (5) is fixedly connected to the upper end surface of the conveying belt (4) ; The vibration base (6) slides on the upper end surface of the selection base (1); the adsorption component (7) is fixedly connected to the right side of the upper end surface of the selection base (1); the protective shield (9) is located on the upper end surface of the selection base (1), the protective shield (9) is located on the outside of the vibration base (6), and the inner end surface of the protective shield (9) is provided with sound-absorbing cotton; the lifting shield (14) is located on the left side of the protective shield (9), and the lifting shield (14) is located on the outside of the lifting component (3); the protective installation mechanism is arranged on the protective shield (9); the feeding protection mechanism is arranged on the lifting shield (14).
2. A wind-powered sorting machine for grading and packaging as claimed in claim 1, characterized in that: The protective installation mechanism comprises: a vibration slide bar (8) and a vibration spring (801); the vibration slide bar (8) is provided in four groups, the four groups of vibration slide bars (8) are respectively fixedly connected to the four corners of the vibration base (6), and the four groups of vibration slide bars (8) are respectively slid inside the upper end surface of the selection base (1); the vibration spring (801) is provided in four groups, the four groups of vibration springs (801) are respectively fixedly connected to the upper end surface of the selection base (1), and the four groups of vibration springs (801) are respectively elastically connected to the four groups of vibration slide bars (8).
3. A wind-powered sorting machine for grading and packaging as claimed in claim 1, characterized in that: The protective installation mechanism further comprises: an installation slot (101) and an installation protrusion (901); the installation slot (101) is provided in four groups, and the four groups of installation slots (101) are respectively opened on the upper side of the outer end surface of the selection base (1); the installation protrusion (901) is provided in four groups, and the four groups of installation protrusions (901) are respectively fixedly connected to the four corners of the lower end surface of the protective shield (9), and the four groups of installation protrusions (901) are located inside the four groups of installation slots (101).
4. A wind-powered sorting machine for grading and packaging as claimed in claim 3, characterized in that: The protective installation mechanism also includes: installation screw holes (10) and installation bolts (11); the installation screw holes (10) are provided in four groups, and the four groups of installation screw holes (10) are respectively opened on the upper side of the outer end surface of the selection base (1) and in the middle of the four groups of installation protrusions (901); the installation bolts (11) are provided in four groups, and the four groups of installation bolts (11) are respectively threadedly connected inside the four groups of installation screw holes (10).
5. A wind-powered sorting machine for grading and packaging as claimed in claim 1, characterized in that: The protective installation mechanism also includes: an operating shaft (12), an operating torsion spring (1201) and an operating guard plate (13); the operating shaft (12) is rotatably connected to the inside of the front end surface of the protective shield (9); the operating torsion spring (1201) is fixedly connected to the inside of the front end surface of the protective shield (9), and the operating shaft (12) and the operating torsion spring (1201) are elastically connected; the operating guard plate (13) is fixedly connected to the middle position of the operating shaft (12), and the operating guard plate (13) is rotatably connected to the front end surface of the protective shield (9).
6. A wind-powered sorting machine for grading and packaging as claimed in claim 1, characterized in that: The feeding protection mechanism comprises: moving rollers (1401); the moving rollers (1401) are arranged in four groups, and the four groups of moving rollers (1401) are respectively rotatably connected to the four corners inside the lower end surface of the lifting shield (14), and the four groups of moving rollers (1401) are respectively rotated on the lower side of the lifting shield (14).
7. A wind-powered sorting machine for grading and packaging as claimed in claim 1, characterized in that: The feeding protection mechanism further comprises: a protection plug block (1402) and a protection slot (15); the protection plug blocks (1402) are provided in four groups, and the four groups of protection plug blocks (1402) are respectively fixedly connected to the four corners of the right end surface of the lifting shield (14); the protection slots (15) are provided in four groups, and the four groups of protection slots (15) are respectively opened on the left end surface of the selection base (1) and the protection shield (9), and the four groups of protection plug blocks (1402) are respectively plugged and connected to the four groups of protection slots (15).
8. A wind-powered sorting machine for grading and packaging as claimed in claim 7, characterized in that: The feeding protection mechanism also includes: protection screw holes (16) and protection bolts (17); the protection screw holes (16) are provided in four groups, and the four groups of protection screw holes (16) are respectively opened on the outer end surfaces of the selection base (1) and the protection shield (9), and the four groups of protection screw holes (16) are respectively opened in the middle position of the protection plug block (1402); the protection bolts (17) are provided in four groups, and the four groups of protection bolts (17) are respectively threadedly connected to the inside of the four groups of protection screw holes (16).
9. A wind-powered sorting machine for grading and packaging as claimed in claim 1, characterized in that: The feeding protection mechanism also includes: a safety shield (18), a safety slide plate (19) and a safety spring (1901); the safety shield (18) is fixedly connected to the lower side of the inner end surface of the lifting shield (14); the safety slide plate (19) is slidably connected to the lower side of the interior of the safety shield (18), and the safety slide plate (19) slides on the lower side of the lifting shield (14); a total of multiple groups of safety springs (1901) are provided, and the multiple groups of safety springs (1901) are respectively fixedly connected to the interior of the safety shield (18), and the multiple groups of safety springs (1901) are respectively elastically connected to the safety slide plates (19).