High efficiency manual kernel opening device

Abstract

This invention discloses a high-efficiency manual pine nut opening device, comprising a base, a feeding hopper and a pressure knife assembly on the surface of the base. The device is characterized by a fixed mounting plate below the base, the pressure knife assembly including a pressing knife and a pressure rod, the pressing knife being elastically rotatably connected to the base via a torsion spring, one end of the pressure rod being rotatably connected to the base via a shaft, and the end of the pressing knife being slidably disposed within a pressure groove on the surface of the pressure rod via a sliding pin. A feeding mechanism is rotatably disposed below the pressing knife and between it and the feeding hopper, the feeding mechanism including a feeding disc and an air nozzle, the inner circumference of the feeding disc having a ratchet groove; a transmission mechanism is disposed near the end of the pressure rod close to the base. This invention can effectively achieve semi-automatic pine nut opening operation, preventing finger injuries to operators while effectively improving production efficiency, and also providing a better stable pressure opening effect for the pine nuts, preventing them from flying out.

Description

Technical Field

[0001] This invention relates to the field of nut pressing technology, and in particular to a high-efficiency manual pine nut opening device. Background Technology

[0002] Pine nuts are a type of nut rich in nutrients. Their edible part is encased in a hard and tightly closed brown shell. Due to the dense texture of the shell and the strong seams, it is obviously difficult for consumers or processors to directly obtain the kernel. Therefore, before processing or eating them, the pine nut shell must be effectively opened to facilitate subsequent shelling and kernel extraction.

[0003] Currently, the pine nut opening process mostly involves manually placing each pine nut into the pressing blade for crushing. Although manual opening devices can effectively control the pressing force of the blade and prevent excessive force at the opening point from causing the pine nuts to crumble, thus ensuring product quality, the following problems remain unresolved: 1. Manual opening devices require manual placement of pine nuts one by one at the pressing position for pressing, which is extremely inefficient and consumes a lot of the operator's labor. Second, while placing pine nuts, operators also need to pinch the tail end of the pine nut to stabilize the front end under pressure. In this case, the fingers are very close to the pressure knife, which can easily cause injury. Traditional automated limit devices are difficult to guarantee the dexterity of hands. The surface of pine nuts is smooth, so it is easy for pine nuts to slip or fly away, resulting in extremely low practicality of actual opening operation. It is difficult for the equipment to be transformed from manual to semi-automatic.

[0004] Therefore, how to provide a high-efficiency manual pine nut opening device is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a high-efficiency manual pine nut opening device. This invention can effectively realize semi-automatic pine nut opening operation, prevent operator finger injuries, effectively improve production efficiency, and provide a better stable pressure opening effect for pine nuts, preventing them from flying out.

[0006] According to an embodiment of the present invention, a high-efficiency manual pine nut opening device includes a base, a feeding hopper and a pressing knife assembly are provided on the surface of the base, a fixed mounting plate is provided below the base, the pressing knife assembly includes a pressing knife and a pressure rod, the pressing knife is elastically rotatably connected to the base through a torsion spring, one end of the pressure rod is rotatably connected to the base through a shaft, the end of the pressing knife is slidably disposed in a pressure groove opened on the surface of the pressure rod through a sliding pin, and a feeding mechanism is rotatably arranged between the pressing knife and the feeding hopper below the pressing knife, the feeding mechanism includes a feeding disc and an air nozzle, and a ratchet groove is opened on the inner ring surface of the feeding disc; A transmission mechanism is set at one end of the pressure rod near the base. The pressure rod is connected to the actuation mechanism through the transmission mechanism. The actuation mechanism includes a swing frame and two sets of drive components. When the pressure rod rotates, it drives the swing frame to rotate through the transmission mechanism. The two sets of drive components are respectively set at both ends of the swing frame. The swing frame is elastically engaged with the ratchet groove through the drive components. The actuating mechanism is located between the mounting plate and the base. Below the mounting plate, there is also a tensioning mechanism that is connected to the transmission mechanism. The tensioning mechanism includes four sets of extension rods. One end of the extension rod is rotatably connected to a vertical shaft through a stop wheel. The four sets of vertical shafts are arranged in a rectangle inside the feeding plate, and the vertical shafts are in contact with the inner ring of the feeding plate.

[0007] Furthermore, the transmission mechanism includes a transmission rod and teeth. The teeth mesh with the lower side of one side of the transmission rod. The transmission rod is Z-shaped and slidably disposed at the bottom of the base. The teeth are connected to the pressure rod on both sides through a gear assembly.

[0008] Furthermore, the bottom of the base is rotatably connected to the swing frame via a pivot pin. Near the bottom of the swing frame, the pivot pin at the bottom of the base is also rotatably provided with opposing teeth. Opposing slide rods are engaged on both sides of the opposing teeth. The two sets of opposing slide rods slide on the bottom surface of the base in opposite directions of movement through the opposing teeth. An abutting protrusion is provided below each set of opposing slide rods. The surface of the transmission rod slides against the opposing slide rod through the outward protrusion.

[0009] Furthermore, a push-pull rod is movably connected to the end of the opposing slide rod via a pin seat. The end of the push-pull rod away from the opposing slide rod is rotatably connected to the swing frame. The two sets of push-pull rods corresponding to the two sets of opposing slide rods are distributed in parallel to each other. One end of a single set of opposing slide rods is elastically connected to the bottom of the base via a positioning spring.

[0010] Furthermore, the driving component also includes a rotating plate, a rotating pin, and a stop rod. The stop rod and the rotating pin are respectively rotatably arranged on the left and right sides of the rotating plate. The middle position of the rotating plate is rotatably connected to the swing frame through a shaft. The stop rod is engaged with the ratchet groove.

[0011] Furthermore, the rotating pin surface is elastically connected to the swing frame via a tension spring, and the rotating pin is located on one side of the swing frame surface.

[0012] Furthermore, the four sets of extension rods are respectively limited and slidable on both sides below the mounting plate, with the two sets of extension rods distributed opposite each other, and the two sets of extension rods having a single set of reversing cone push in wedge contact on opposite sides.

[0013] Furthermore, the four sets of extension rods correspond to two sets of reversing cone pushers. The two sets of reversing cone pushers are limited and slid at the bottom of the mounting plate and are distributed opposite to each other. There is a single set of cone push rods in wedge contact between the two sets of reversing cone pushers. One end of the cone push rod is fixed to the bottom of the transmission rod. The extension rod is elastically connected to the mounting plate through a pressure spring set on one side.

[0014] Furthermore, the feeding mechanism also includes an air nozzle and a collection box. The surface of the feeding tray has several sets of placement grooves in a ring. The bottom of the placement grooves is opened through the feeding tray to form an air port. The air nozzle is fixed on one side of the base near the bottom of the feeding tray track. The air nozzle is aligned with the air port at the bottom of the feeding tray. The collection box is set on one side of the air nozzle. A guide plate is set above the collection box and aligned with the top of the feeding tray.

[0015] The beneficial effects of this invention are: This invention utilizes a transmission mechanism and a tightening mechanism. The transmission mechanism is connected to the pressure rod, and during the downward pressing of the pressure rod, the pressure knife will crack the pine nuts inside the feeding disc. At this time, the transmission mechanism will first push the tightening mechanism, and four sets of braking wheels will support the feeding disc on the inside to ensure the stability of the feeding disc and prevent the pine nuts from flying out due to the rotation of the feeding disc when the disc is opened.

[0016] This invention utilizes a transmission mechanism and actuation mechanism. During the lifting of the pressure rod, the transmission mechanism drives the swing frame to rotate. As the swing frame rotates, the contact between the abutment rod and the ratchet groove causes the feeding disc to rotate forward by a small angle. At this time, the feeding disc will move the pine nuts to be opened to the area below the pressure rod. During the pressing of the pressure rod, the opposing sliding rod, under the action of elasticity, drives the drive assembly to reset, allowing the abutment rod to re-enter the next ratchet groove to be pushed, thus realizing a reciprocating pushing operation, thereby improving production efficiency and achieving the goal of semi-automated production. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a high-efficiency manual pine nut opening device proposed in this invention; Figure 2 This is a schematic diagram of the bottom surface of the overall structure of a high-efficiency manual pine nut opening device proposed in this invention.

[0018] Figure 3This is a schematic diagram of the transmission mechanism connection of a high-efficiency manual pine nut opening device proposed in this invention.

[0019] Figure 4 This is a plan view of the expansion mechanism of a high-efficiency manual pine nut opening device proposed in this invention.

[0020] Figure 5 This is a schematic diagram of the top surface structure of the mounting plate of a high-efficiency manual pine nut opening device proposed in this invention.

[0021] Figure 6 This is a structural disassembly diagram of the actuating mechanism of a high-efficiency manual pine nut opening device proposed in this invention.

[0022] Figure 7 This is a half-sectional schematic diagram of the base structure of a high-efficiency manual pine nut opening device proposed in this invention.

[0023] Figure 8 This is a schematic diagram of the feeding disc transmission principle of a high-efficiency manual pine nut opening device proposed in this invention.

[0024] Figure 9 This invention proposes a high-efficiency manual pine nut opening device. Figure 6 Enlarged schematic diagram of the structure at point A.

[0025] In the diagram: 1. Base; 2. Feeding hopper; 3. Pressing knife assembly; 4. Feeding mechanism; 5. Expansion mechanism; 6. Mounting plate; 7. Transmission mechanism; 8. Actuating mechanism; 31. Pressing knife; 32. Pressure rod; 33. Pressure groove; 41. Feeding tray; 42. Air nozzle; 43. Collection box; 44. Racket groove; 51. Conical push rod; 52. Reversing conical push rod; 53. Extension rod; 54. Pressure spring; 55. Vertical shaft; 56. Stop wheel; 71. Transmission rod; 72. Biting tooth; 73. Meshing wheel assembly; 81. Swing frame; 82. Push-pull rod; 83. Opposing slide rod; 84. Outward protrusion; 85. Opposing meshing tooth; 86. Drive assembly; 861. Rotating plate; 862. Rotating pin; 863. Tension spring; 864. Abutting rod. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0027] refer to Figures 1-9The system includes a base 1, a feeding hopper 2 and a pressing knife assembly 3 on the surface of the base 1, a fixed mounting plate 6 below the base 1, and a pressing knife assembly 3 including a pressing knife 31 and a pressure rod 32. The pressing knife 31 is elastically rotatably connected to the base 1 by a torsion spring, and one end of the pressure rod 32 is rotatably connected to the base 1 by a shaft. The end of the pressing knife 31 is slidably disposed in a pressure groove 33 opened on the surface of the pressure rod 32 by a sliding pin. A feeding mechanism 4 is rotatably arranged between the pressing knife 31 and the feeding hopper 2 below the pressing knife 31. The feeding mechanism 4 includes a feeding disc 41 and an air nozzle 42. A ratchet groove 44 is opened on the inner ring surface of the feeding disc 41. A transmission mechanism 7 is provided at one end of the pressure rod 32 near the base 1. The pressure rod 32 is connected to the actuating mechanism 8 through the transmission mechanism 7. The actuating mechanism 8 includes a swing frame 81 and two sets of driving components 86. When the pressure rod 32 rotates, it drives the swing frame 81 to rotate through the transmission mechanism 7. The two sets of driving components 86 are respectively provided at both ends of the swing frame 81. The swing frame 81 is elastically engaged with the ratchet groove 44 through the driving components 86. The actuating mechanism 8 is set between the mounting plate 6 and the base 1. Below the mounting plate 6, there is also a tightening mechanism 5 that is connected to the transmission mechanism 7. The tightening mechanism 5 includes four sets of expansion rods 53. One end of the expansion rod 53 is rotatably connected to a vertical shaft 55 through a stop wheel 56. The four sets of vertical shafts 55 are rectangularly distributed inside the feeding plate 41, and the vertical shafts 55 are in contact with the inner ring of the feeding plate 41.

[0028] In this embodiment, the pressing knife 31 and the pressure rod 32 are connected by a lever through the pressure groove 33. The pressing knife 31 is always kept in a separation space from the feeding plate 41 by the elasticity of the torsion spring. When the pressure rod 32 is manually pressed down, the pressing knife 31 slides in the pressure groove 33 through the pivot pin, so that the pressure rod 32 is pressed and moves closer to the feeding plate 41 until the pine nuts in the top slot of the feeding plate 41 are pressed open, thereby realizing the opening operation of the pine nuts. While the pressing knife 31 presses down on the pine nuts remaining on the surface of the feeding disc 41, one end of the pressure rod 32 can push the four sets of expansion rods 53 in the expansion mechanism 5 through the transmission mechanism 7. The expansion effect of the four sets of expansion rods 53 can abut against the inner ring of the feeding disc 41, thereby securing the position of the feeding disc 41. In this way, when the pressing knife 31 applies pressure to the pine nuts, the feeding disc 41 can provide a better stabilizing effect for the pine nuts, preventing the pine nuts from causing the feeding disc 41 to rotate slightly after being pressed, thereby preventing the pine nuts from flying away. During the lifting process, the reverse movement of the transmission mechanism 7 causes the extension rod 53 to release its grip on the feeding disc 41. At the same time, the transmission mechanism 7 drives the actuating mechanism 8 to move. The force on the swing frame 81 occurs at the bottom of the base 1 and rotates. The protruding parts at both ends of the swing frame 81 are connected to the driving component 86. The driving component 86 will then actuate the feeding disc 41 in the released state, causing the feeding disc 41 to rotate at an angle between the top of the base 1 and the feeding hopper 2. This causes the next pine nut to be opened to rotate to the position below the pressing knife 31, and the opened pine nut is sent to the next processing unit for collection and processing. The feeding disc 41 mentioned here rotates between the base 1 and the feeding hopper 2. After the feeding disc 41 enters the feeding hopper 2, the feeding device guides the pine nuts into the placement slot on the surface of the feeding disc 41. The specific feeding structure can use a push or spiral feeding device, or it can be placed manually. In addition, the extension rod 53 can preferably be an elastic rod to realize the adaptive pressing operation, so that after the feeding disc 41 is elastically pressed, the pressing knife 31 can continue to press down to realize the cracking and opening operation of the pine nuts.

[0029] refer to Figure 3 and Figure 7 The transmission mechanism 7 includes a transmission rod 71 and a tooth 72. The tooth 72 meshes with the lower side of one side of the transmission rod 71. The transmission rod 71 is Z-shaped and slidably disposed at the bottom of the base 1. The two sides of the tooth 72 are connected to the pressure rod 32 through the meshing wheel assembly 73.

[0030] In this embodiment, one end of the pressure rod 32 is rotatably connected to the base 1 via a shaft, and both ends of the shaft can be connected to the beginning of the gear assembly 73. The end of the gear assembly 73 is connected to the teeth 72 via a coupling. The gear assembly 73 can be composed of three sets of sequentially meshing gears. The middle gear realizes the reversing operation, and the rotation limit between the gear and the base 1 realizes the transmission effect. For details, please refer to [reference needed]. Figure 3 Due to the structural features, when the pressure rod 32 presses down and drives the teeth 72 to rotate clockwise, the upper part of the teeth 72 meshes with the lower side of the transmission rod 71, while the transmission rod 71 itself is slidably limited at the bottom of the base 1. At this time, the transmission rod 71 will move stably to one side to achieve the basic transmission purpose.

[0031] refer to Figure 3 , Figures 5-9The base 1 is rotatably connected to the swing frame 81 at its bottom via a pivot pin. Near the bottom of the swing frame 81, a counter-rotating tooth 85 is also rotatably provided on the pivot pin at the bottom of the base 1. Counter-sliding slide rods 83 are engaged on both sides of the counter-sliding tooth 85. The two sets of counter-sliding slide rods 83 slide in opposite directions on the bottom surface of the base 1 via the counter-sliding tooth 85. An abutting protrusion is formed below each set of counter-sliding slide rods 83, and the surface of the transmission rod 71 slides against the counter-sliding slide rod 83 via an outward protrusion 84. A push-pull rod 82 is movably connected to the end of each counter-sliding slide rod 83 via a pin seat. The end of the push-pull rod 82 away from the counter-sliding slide rod 83 is rotatably connected to the swing frame 81. The two sets of push-pull rods 82 corresponding to the two sets of counter-sliding slide rods 83 are parallel to each other. One end of each set of counter-sliding slide rods 83 is elastically connected to the bottom of the base 1 via a positioning spring. The drive assembly 86 also includes a rotating plate 861, a rotating pin 862, and a stop rod 864. The stop rod 864 and the rotating pin 862 are rotatably mounted on the left and right sides of the rotating plate 861, respectively. The middle part of the rotating plate 861 is rotatably connected to the swing frame 81 via a shaft. The stop rod 864 is engaged with the ratchet groove 44. The surface of the rotating pin 862 is elastically connected to the swing frame 81 via a tension spring 863, and the rotating pin 862 is located on one side of the surface of the swing frame 81.

[0032] This implementation plan focuses on combining Figure 6 and Figure 8 Explanation: When the transmission rod 71 moves to one side under force, it synchronously drives the outward protrusion 84 to move away from the protrusion at the bottom of the opposing slide rod 83. There are two sets of opposing slide rods 83, which are interconnected. The single set of opposing slide rods 83 away from the transmission rod 71 is elastically limited to the base 1 by a positioning spring. This positioning spring is a spring that maintains a shape and can satisfy both compression and tension elastic deformation. At this time, the single set of opposing slide rods 83 closer to the transmission rod 71 will not move under force, and the actuating mechanism 8 is in a stable state. When the transmission rod 71 moves in the opposite direction, at this time... When the pressure rod 32 reverses, it means that the pine nut pressing operation has been completed and the pine nuts need to be released. At this time, the outward protrusion 84 will push the single set of opposing slide rods 83 to move. One side of the opposing slide rod 83 can engage the opposing teeth 85 that limit the lower part of the base 1 through the meshing rod. The opposing teeth 85 rotate at this time, driving the other set of opposing slide rods 83 to move in the opposite direction. Because the opposing slide rods 83 are movably connected to the side of the swing frame 81 through the push-pull rod 82, the effect of the opposing slide rods 83 moving in opposite directions will pull the swing frame 81 through the push-pull rod 82. The swing frame 81 will rotate around the central axis position at this time. The rotation process is stabilized by the positioning spring on one side of the opposing slide rod 83. The swing frame 81 is generally concave rod shaped with right angles at both ends to accommodate the distribution of the structure in the space below the base 1. After the swing frame 81 rotates, the driving components 86 at both ends of the swing frame 81 will be driven to rotate synchronously. At this time, the swing frame 81 mainly drives the middle position of the rotating plate 861 to rotate and displace. The abutting rod 864 at one end of the rotating plate 861 is stuck in the ratchet groove 44, while the rotating pin 862 at the other end of the rotating plate 861 is limited by the swing frame 81 itself. Thus, the rotating plate 861 can be regarded as maintaining a whole with the swing frame 81, thereby realizing the rotation of the rotating plate 861. The abutting rod 864 moves the ratchet groove 44, and the feeding plate 41 is subjected to force and rotates at an angle. This happens during the lifting process of the pressure rod 32, thereby realizing the effect of automatic feeding of pine nuts placed on the surface of the feeding plate 41. Subsequently, the pressure rod 32 is pressed down, and the two sets of opposing sliding rods 83 are reset under the action of the positioning spring. During this process, due to the contact between the contact rod 864 and the inner wall of the ratchet groove 44, the swing frame 81 in the rotating state will first reset and rotate by an angle, causing the rotating plate 861 itself to rotate on the surface of the swing frame 81. At this time, the rotating pin 862 will pull the tension spring 863 to elastically deform until the contact rod 864 is dragged into the groove of the next ratchet groove 44. During this process, it should be noted that the ratchet groove 44 needs to remain stationary, but the tension of the tension spring 863 will pull the contact rod 864 to push the inclined position of the ratchet groove 44. In order to prevent the ratchet groove 44 from resetting, it is necessary to ensure a certain static friction of the ratchet groove 44. This damping effect can overcome the pushing effect of the contact rod 864 on the ratchet groove 44. This damping effect can be achieved by adding a damping pad at the contact position between the feeding plate 41 and the feeding hopper 2 or the base 1.

[0033] refer to Figure 2 , Figure 4 and Figure 7 Four sets of extension rods 53 are respectively limited and slidable on both sides below the mounting plate 6, with the two sets of extension rods 53 facing each other. A single set of reversing cone pushers 52 is wedge-shaped contacting the opposite sides of the two sets of extension rods 53. The four sets of extension rods 53 correspond to the two sets of reversing cone pushers 52, which are limited and slidable at the bottom of the mounting plate 6 and are opposite to each other. A single set of cone pushers 51 is wedge-shaped contacting the two sets of reversing cone pushers 52. One end of the cone pusher 51 is fixed to the bottom of the transmission rod 71. The extension rods 53 are elastically connected to the mounting plate 6 through a pressure spring 54 set on one side.

[0034] This implementation plan mainly refers to Figure 4With the structural features of the transmission rod 71, during the lateral advancement process, the conical opening at the end of the conical push rod 51 will push the conical push rods 51 on both sides, the reversing conical push rod 52, and the extension rod 53, all of which are limited and set at the bottom of the mounting plate 6. This causes the reversing conical push rod 52 to push the two sets of extension rods 53 at the end to move to both sides. At this time, the extension rod 53 will squeeze the pressure spring 54 between it and the mounting plate 6, causing it to deform elastically. At the same time, the movement effect of the extension rod 53 itself will drive the blocking wheel 56 to press against the upper position of the inner ring of the feeding plate 41 through the vertical shaft 55. The blocking wheel 56 is made of rubber, which can ensure that the feeding plate 41 remains stable between the feeding hopper 2 and the base 1 under the pressure of the four sets of blocking wheels 56. At this time, the downward pressure of the pressure rod 32 will squeeze the pine nuts in the slot at the top of the feeding plate 41. The pine nuts will open due to the pressure of the pressure rod 32 and the feeding plate 41. A further solution is to set the extension rod 53 as a spring rod to better adapt to the fact that the pressure rod 32 can continuously provide the downward pressure effect of the pine nut after it is tightened.

[0035] refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 The feeding mechanism 4 also includes an air nozzle 42 and a collection box 43. The surface of the feeding plate 41 has several sets of placement grooves in a ring. The bottom of the placement grooves passes through the feeding plate 41 and has an air port. The air nozzle 42 is fixed on one side of the base 1 near the bottom of the track of the feeding plate 41. The air nozzle 42 is aligned with the air port at the bottom of the feeding plate 41. The collection box 43 is set on one side of the air nozzle 42. A guide plate is set above the collection box 43 and aligned with the top of the feeding plate 41.

[0036] In this embodiment, after entering the feeding hopper 2, a single pine nut is placed in the placement groove on the surface of the feeding disc 41. Then, the rotating feeding disc 41 carries it to the pressure rod 32 to open the hopper. After the hopper is opened, the rotation of the feeding disc 41 will move the pine nut to the air nozzle 42. At this time, the air nozzle 42 blows air into the air outlet of the feeding disc 41 from the bottom. The pine nut and the crushed material are blown up and fall into the collection box 43 under the action of the guide plate to achieve collection.

[0037] Working principle: Pressing the pressure rod 32 causes the pressure rod 32 to slide against the pressure groove 33 and the pressure knife 31, causing the pressure knife 31 to overcome the torsion spring force and press down. At this time, one end of the pressure knife 31 drives the bottom teeth 72 of the base 1 to rotate through the meshing wheel assembly 73. The teeth 72 drive the transmission rod 71 to move laterally across the bottom surface of the base 1. The transmission rod 71 pushes the two sets of reversing cone pushers 52 at the bottom of the mounting plate 6 through the cone pusher 51. The two sets of reversing cone pushers 52 push the four sets of extension rods 53, so that the extension rods 53 are driven by the vertical shaft 55. The stop wheel 56 is pressed against the inner ring of the feed plate 41. On the other hand, after the transmission rod 71 moves, the opposing slide rod 83 is reset under the action of the positioning spring. The two sets of opposing slide rods 83 move in opposite directions under the meshing of the opposing teeth 85. At the same time, the opposing slide rods 83 push the swing frame 81 through the push-pull rod 82. The swing frame 81 rotates and drives the rotating plate 861 to rotate. Under the elastic force of the tension spring 863 on the surface of the rotating pin 862, the abutment rod 864 is driven into the next ratchet groove 44 to reset. Then the pressure rod 32 is raised, at which time the transmission rod 71 moves in the opposite direction. Under the action of the outward protrusion 84, it drives the two sets of opposing sliding rods 83 to unfold. During the rotation of the swing frame 81, due to the contact effect between the rotating pin 862 and the swing frame 81, the contact rod 864 will push the ratchet groove 44. The feeding plate 41 is subjected to force and rotates, which drives the pine nut in the new placement slot to move to the bottom of the pressure rod 32. At the same time, the four sets of extension rods 53 are reset under the elastic action of the pressure spring 54, releasing the contact of the stop wheel 56 with the feeding plate 41, thereby facilitating the rotation of the feeding plate 41. Finally, the pine nuts are carried by the feeding plate 41 to the air nozzle 42. The air nozzle 42 blows air to blow the pine nuts and crushed material into the collection box 43 for collection. The feeding plate 41 then enters the feeding hopper 2 to place the pine nuts.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency manual pine nut opening device, comprising a base (1), a feeding hopper (2) and a pressing knife assembly (3) disposed on the surface of the base (1), characterized in that, A fixed mounting plate (6) is placed below the base (1). The pressure knife assembly (3) includes a pressure knife (31) and a pressure rod (32). The pressure knife (31) is elastically rotatably connected to the base (1) through a torsion spring. One end of the pressure rod (32) is rotatably connected to the base (1) through a shaft. The end of the pressure knife (31) is slidably set in the pressure groove (33) opened on the surface of the pressure rod (32) through a sliding pin. A feeding mechanism (4) is rotatably arranged between the pressure knife (31) and the feeding hopper (2). The feeding mechanism (4) includes a feeding disc (41) and an air nozzle (42). A ratchet groove (44) is opened on the inner ring surface of the feeding disc (41). A transmission mechanism (7) is provided at one end of the pressure rod (32) near the base (1). The pressure rod (32) is connected to the actuating mechanism (8) through the transmission mechanism (7). The actuating mechanism (8) includes a swing frame (81) and two sets of driving components (86). The pressure rod (32) rotates while driving the swing frame (81) to rotate through the transmission mechanism (7). The two sets of driving components (86) are respectively provided at both ends of the swing frame (81). The swing frame (81) is elastically engaged with the ratchet groove (44) through the driving components (86). The actuating mechanism (8) is set between the mounting plate (6) and the base (1). Below the mounting plate (6) is a tightening mechanism (5) that is connected to the transmission mechanism (7). The tightening mechanism (5) includes four sets of extension rods (53). One end of the extension rod (53) is rotatably connected to a vertical shaft (55) through a stop wheel (56). The four sets of vertical shafts (55) are rectangularly distributed inside the feeding plate (41). The vertical shafts (55) are in contact with the inner ring of the feeding plate (41).

2. The high-efficiency manual pine nut opening device according to claim 1, characterized in that, The transmission mechanism (7) includes a transmission rod (71) and a tooth (72). The tooth (72) meshes with the lower side of the transmission rod (71). The transmission rod (71) is Z-shaped and slidably disposed at the bottom of the base (1). The two sides of the tooth (72) are connected to the pressure rod (32) through a gear assembly (73).

3. The high-efficiency manual pine nut opening device according to claim 1, characterized in that, The bottom of the base (1) is rotatably connected to the swing frame (81) by a shaft pin. The bottom shaft pin of the base (1) is also rotatably provided with opposing teeth (85) near the bottom of the swing frame (81). Opposing slide rods (83) are engaged on both sides of the opposing teeth (85). The two sets of opposing slide rods (83) slide on the bottom surface of the base (1) in opposite directions of movement through the opposing teeth (85). A contact protrusion is opened below the single set of opposing slide rods (83). The surface of the transmission rod (71) slides against the opposing slide rod (83) through the outward protrusion (84).

4. A high-efficiency manual pine nut opening device according to claim 3, characterized in that, A push-pull rod (82) is movably connected to the end of the opposing slide rod (83) via a pin seat. The end of the push-pull rod (82) away from the opposing slide rod (83) is rotatably connected to the swing frame (81). The two sets of push-pull rods (82) corresponding to the two sets of opposing slide rods (83) are distributed in parallel to each other. One end of a single set of opposing slide rods (83) is elastically connected to the bottom of the base (1) via a positioning spring.

5. A high-efficiency manual pine nut opening device according to claim 1, characterized in that, The drive assembly (86) also includes a rotating plate (861), a rotating pin (862), and a contact rod (864). The contact rod (864) and the rotating pin (862) are respectively rotatably arranged on the left and right sides of the rotating plate (861). The middle position of the rotating plate (861) is rotatably connected to the swing frame (81) through a shaft. The contact rod (864) is engaged with the ratchet groove (44).

6. A high-efficiency manual pine nut opening device according to claim 5, characterized in that, The surface of the rotating pin (862) is elastically connected to the swing frame (81) by a tension spring (863), and the rotating pin (862) is located on one side of the surface of the swing frame (81).

7. A high-efficiency manual pine nut opening device according to claim 1, characterized in that, The four sets of extension rods (53) are respectively limited and slid on both sides below the mounting plate (6). The two sets of extension rods (53) are distributed opposite each other, and the two sets of extension rods (53) have a single set of reversing cone pushers (52) in wedge contact on opposite sides.

8. A high-efficiency manual pine nut opening device according to claim 7, characterized in that, Four sets of extension rods (53) correspond to two sets of reversing cone pushers (52). The two sets of reversing cone pushers (52) are limited to slide at the bottom of the mounting plate (6) and are distributed opposite to each other. There is a single set of cone push rods (51) in wedge contact between the two sets of reversing cone pushers (52). One end of the cone push rod (51) is fixed to the bottom of the transmission rod (71). The extension rod (53) is elastically connected to the mounting plate (6) through a pressure spring (54) set on one side.

9. A high-efficiency manual pine nut opening device according to claim 1, characterized in that, The feeding mechanism (4) also includes an air nozzle (42) and a collection box (43). The surface of the feeding tray (41) has several sets of placement grooves in a ring. The bottom of the placement grooves passes through the feeding tray (41) to open an air port. The air nozzle (42) is fixed on one side of the base (1) near the bottom of the feeding tray (41) track. The air nozzle (42) is aligned with the air port at the bottom of the feeding tray (41). The collection box (43) is set on one side of the air nozzle (42). A guide plate is set above the collection box (43) and aligned with the top of the feeding tray (41).

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