A peanut shelling machine

Abstract

The present invention discloses a peanut shelling machine, which comprises a frame. A feed bin is installed at the front of the frame, and a peanut feeding mechanism for driving the feed bin to convey peanuts singly backward is provided. A power driving mechanism is installed on one side of the frame. A clamping and feeding mechanism and a shelling mechanism, which are driven by the power driving mechanism and are in linkage, are successively installed on the frame from front to back. The clamping and feeding mechanism comprises clamping claws driven by the power driving mechanism, which are used for clamping peanuts, conveying them backward, loosening the peanuts and then being able to retreat. The shelling mechanism comprises two shelling claws driven by the power driving mechanism, which can approach each other to clamp the peanuts, shell them and then loosen and return to their respective positions, and are arranged oppositely. The present invention can imitate the manual shelling method to continuously shell single peanuts, and has the advantages of high shelling efficiency and low breakage rate.

Description

Technical Field

[0001] The present invention relates to a peanut shelling machine. Background Art

[0002] Most traditional peanut shelling (or hulling) is done manually, that is, by hand to break the peanut shell, and then separate the peanut shell from the peanut kernel. After the peanut shell and the peanut kernel are separated, the peanut kernel can be further processed (such as oil extraction, cooking, etc.), and the peanut shell is crushed and used as fertilizer or fuel; in addition, in areas with a wide area of peanut cultivation, after the peanuts of uniform size are shelled, the peanut kernels are used as seeds for planting. When the planting season is approaching, peanut shelling work is a heavy job with high labor intensity and low labor efficiency.

[0003] Most of the peanut shelling machines currently produced on the market use stirring teeth for crushing and separation, that is, the peanut shelling machine usually consists of a shelling device, a winnowing device, a screening device and a transmission device. In the prior art, a rotating drum type shelling device is mostly used to break the peanut shell. Since the peanuts after shelling cannot be discharged from the drum in time when this rotating drum type shelling device works, it will cause the peanuts to continue to roll and rub in the drum, which is likely to damage the germ of the peanuts. Therefore, the peanuts shelled by this device cannot be used as peanut seeds. In addition, the breakage rate of this type of shelling machine is extremely high, resulting in waste. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a peanut shelling machine with high shelling efficiency and low breakage rate, and this machine can imitate the manual shelling method to continuously shell single peanuts with high shelling efficiency.

[0005] To solve the above technical problem, the provided peanut shelling machine includes a frame. Its structural characteristics are: a feed bin is installed at the front of the frame and a peanut feeding mechanism for driving the feed bin to convey peanuts backward one by one, a power driving mechanism is installed on one side of the frame, and a clamping and feeding mechanism and a shelling mechanism driven by the power driving mechanism and realizing linkage are successively installed on the frame from front to back. The clamping and feeding mechanism includes clamping claws driven by the power driving mechanism, which are used to clamp peanuts and convey them backward, then release the peanuts and can retreat. The shelling mechanism includes two shelling claws driven by the power driving mechanism, which can approach each other to clamp the peanuts, shell them, then release and return to their respective positions and are arranged oppositely.

[0006] After adopting the above structure, the feeding bin conveys peanuts individually driven by the peanut feeding structure. Then, the clamping claws of the clamping and feeding mechanism clamp the peanuts and convey them backward, and then release the peanuts. After being cracked by two cracking claws, they are released and then return to their original positions, thus realizing the cracking work of individual peanuts. Since this machine uses cracking claws for individual cracking and adopts the bionics principle, and uses the cracking claws to imitate the artificial shelling method to shell peanuts individually, its breakage rate is extremely low, and there will be no problem of incomplete cracking or uncracked peanuts. Driven continuously by the power driving mechanism, peanuts can be shelled one by one continuously, greatly improving the labor efficiency.

[0007] The clamping and feeding mechanism includes a clamping frame connected to the frame. A pushing platform is slidably connected to the clamping frame. The clamping claws include two clamping claw pieces that are oppositely arranged and connected by an elastic device. The front parts of the two clamping claw pieces form a clamping arm capable of clamping peanuts. The middle parts of the two clamping claw pieces are hinged to the pushing platform. A clamping power mechanism is connected to the pushing platform and is driven by the power driving mechanism to move backward, and at the same time can drive the pushing platform forward, and drive the two clamping arms of the two clamping claw pieces to close to clamp peanuts. A clamping reset device capable of driving the pushing platform to move backward is installed on the frame.

[0008] A longitudinal clamping guide shaft is connected to the clamping frame. The pushing platform is slidably connected to the clamping guide shaft. The clamping power mechanism includes a clamping push block that is slidably connected to the clamping guide shaft and can push the pushing platform to slide backward. The clamping push block is driven by a clamping power arm, and the clamping power arm is driven by the power driving mechanism through a clamping power device. A clamping drive block for closing the two clamping arms is connected to the clamping push block, and the two clamping arms can maintain an open state under the action of the elastic device.

[0009] The clamping power device includes a clamping power cam that is power-connected to the power driving mechanism. A first clamping swing arm driven by the clamping power cam to swing is connected to the frame. A clamping power swing arm with its top power-connected to the clamping push block is hinged to the frame. The first clamping swing arm drives the clamping power swing arm to swing back and forth through a clamping linkage mechanism.

[0010] The clamping and feeding mechanism further includes a peanut receiving device connected to the frame. The peanut receiving device includes a receiving frame connected to the frame. A receiving sliding frame capable of sliding back and forth is slidably connected to the receiving frame. Two receiving arms that extend downward and are oppositely arranged are hinged to the receiving sliding frame. When the two receiving arms move to the most front part with the receiving sliding frame, they are located below the rear outlet of the feeding bin. When they move to the last part, they are located above the clamping claws. A receiving power mechanism is connected to the frame and can drive the receiving sliding frame to move backward and drive the two receiving arms to receive peanuts and transport them to the clamping claws.

[0011] The shell-breaking mechanism includes two opposite shell-breaking claws. The two shell-breaking claws are respectively a clamping shell-breaking claw capable of clamping one side of the peanut and a tearing shell-breaking claw capable of clamping the other side of the peanut and tearing it. Both the clamping shell-breaking claw and the tearing shell-breaking claw are composed of two claw bodies that are opposite to each other up and down. The claw body includes a shell-breaking claw plate and a plurality of claw heads that are connected to the shell-breaking claw plate and arranged at intervals. The claw heads are bent, and the claw heads on the two claw bodies that are opposite to each other up and down are bent towards each other. The claw heads on the clamping shell-breaking claw are staggered from the claw heads on the tearing shell-breaking claw.

[0012] Two mutually hinged shelling clamp handles are correspondingly connected to the two claw bodies that are opposite to each other up and down. A spring pressing mechanism is installed at the rear of the shelling clamp handle and can drive the two claw bodies to approach each other to form a clamping state. A fixed shell-breaking seat and a tearing shell-breaking seat are installed on the frame. The two shelling clamp handles of the clamping shell-breaking claw are hinged on the fixed shell-breaking seat. A shell-breaking sliding box that can slide left and right is slidably connected to the tearing shell-breaking seat. The two shelling clamp handles of the tearing shell-breaking claw are hinged on the shell-breaking sliding box. A clamping shell-breaking power mechanism for driving the clamping shell-breaking claw to clamp the peanut and a tearing shell-breaking power mechanism for driving the tearing shell-breaking claw to slide and tear the peanut shell are connected to the frame.

[0013] The clamping shell-breaking power mechanism includes a clamping shell-breaking slider that is slidably connected to the fixed shell-breaking seat. Oppositely protruding convex parts are correspondingly provided on the two shelling clamp handles of the clamping shell-breaking claw. When the clamping shell-breaking slider slides, it can extend into the space between the two convex parts, so that the two claw bodies of the clamping shell-breaking claw are in an open state. A clamping shell-breaking swing arm for driving the clamping shell-breaking slider to slide left and right is hinged on the frame. A clamping shell-breaking cam is installed on the frame. A swingable clamping shell-breaking power arm is power-connected to the clamping shell-breaking cam. The clamping shell-breaking swing arm is power-connected to the clamping shell-breaking power arm through a clamping shell-breaking linkage mechanism.

[0014] The tearing shell-breaking power mechanism includes a support pin shaft connected to the tearing shell-breaking seat. The support pin shaft is located inside the two shelling clamp handles. Oppositely protruding convex parts are correspondingly provided on the two shelling clamp handles of the tearing shell-breaking claw, and when the tearing shell-breaking claw runs to the position closest to the clamping shell-breaking claw, the support pin shaft is located inside the convex parts. A tearing inner slider is slidably connected in the shell-breaking sliding box. The tearing inner slider is connected to the rear part of the shelling clamp handle through a pulling spring. A tearing shell-breaking crank power-connected to the power driving mechanism is connected to the frame. A tearing connecting rod for driving the shell-breaking sliding box to slide is connected to the tearing shell-breaking crank. The end of the tearing connecting rod is hinged to the tearing inner slider.

[0015] The spring pressing mechanism includes a vertical guide rod inserted through the rear part of the shelling clamp handle. Guide rod stoppers are provided at both the upper and lower ends of the vertical guide rod. A top pressure spring is installed between the guide rod stopper at the upper or lower part and the adjacent shelling clamp handle.

[0016] In summary, the present invention can crack peanuts one by one continuously by imitating the way of manual shelling, and has the advantages of high shelling efficiency and low breakage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings:

[0018] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0019] Figure 2 is a schematic flow diagram of the present invention;

[0020] Figure 3 is Figure 1 a schematic structural diagram of the feed bin and the peanut feeding mechanism in the embodiment;

[0021] Figure 4 is Figure 1 a schematic structural diagram of the clamping and feeding mechanism in the embodiment;

[0022] Figure 5 is Figure 4 a schematic top view structure diagram;

[0023] Figure 6 is Figure 4 a schematic structural diagram of a state after the clamping and feeding mechanism operates in the [embodiment];

[0024] Figure 7 is Figure 4 a schematic structural diagram of another state after the clamping and feeding mechanism operates in the [embodiment];

[0025] Figure 8 is Figure 1 a schematic structural diagram of the clamping power mechanism in the embodiment;

[0026] Figure 9 is Figure 1 a schematic structural diagram of the peanut receiving device in the embodiment;

[0027] Figure 10 is along Figure 9 a schematic cross-sectional view taken along the A-A direction in the [embodiment];

[0028] Figure 11 is Figure 1 a schematic structural diagram of the pushing power driving mechanism in the embodiment;

[0029] Figure 12 is Figure 1 a schematic structural diagram of the receiving power mechanism in the embodiment;

[0030] Figure 13 is Figure 1 a schematic structural diagram of the shelling mechanism in the embodiment;

[0031] Figure 14 for Figure 1 A schematic structural diagram of a shell-breaking seat in an embodiment;

[0032] Figure 15 For along Figure 14 Schematic diagram of the structure viewed from the middle BB line;

[0033] Figure 16 for Figure 1 A schematic diagram of the structure of a fixed shell breaking seat in the embodiment;

[0034] Figure 17 for Figure 1 A schematic diagram of the shell breaking mechanism in another working state in the embodiment;

[0035] Figure 18 for Figure 1 A schematic diagram of the structure of the clamping and shell-breaking power mechanism in the embodiment;

[0036] Figure 19 for Figure 1 A schematic diagram of the structure of the claw body in the embodiment. DETAILED DESCRIPTION

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. That is to say, in this embodiment, the positional relationships indicated by "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. Figure 1 The up and down positions in the figure are the left and right positions of the machine. Figure 1 The left and right positions in the figure are the front and back positions of the unit, and Figure 1 The left side in the figure is the front of the machine, and the right side is the rear of the machine.

[0038] like Figure 1 and Figure 2As shown, the present invention provides a peanut shelling machine, which includes a frame 1. The frame 1 can adopt the frame structure shown in the figure or other structures, and is used to support the components of the machine. A feeding bin 4 and a peanut feeding mechanism for driving the feeding bin 4 to convey peanuts backward one by one are installed at the front of the frame 1. A power driving mechanism is installed on one side of the frame 1. To simplify the power drive and better achieve linkage, a power motor 40 is used as the power source. The power motor 40 is drivingly connected to a main drive shaft 41 on the frame 1 to rotate powerfully. A clamping power cam 107, a pushing power cam 116, a receiving power cam 123, a clamping and shelling cam 11, and a tearing and shelling crank 16 are installed on the main drive shaft 41. That is to say, the above-mentioned power cams and cranks are all power-driven by a main drive shaft 41, thus ensuring the linkage performance between them. Next, the design of the cam tracks on each power cam will be described through the action relationships of each component. The specific structures of each power cam are not shown in detail in the figure. According to the action process, those skilled in the art know how to design the cam tracks. A clamping and feeding mechanism and a shelling mechanism driven by the power driving mechanism and achieving linkage are also installed on the frame 1 in sequence from front to back. The clamping and feeding mechanism further includes a peanut receiving device and a peanut pushing device connected to the frame 1. The clamping and feeding mechanism includes clamping claws 2 driven by the power driving mechanism, which are used to clamp peanuts and convey them backward, then release the peanuts and can retreat. The shelling mechanism includes two shelling claws 3 driven by the power driving mechanism, which can approach each other to clamp peanuts, shell them, then release and return to their respective positions and are arranged oppositely. Figure 2 The basic principle diagram of the machine is shown, in Figure 2 Figure a, the process of conveying and shelling peanuts from front to back is introduced. Figure 2 In Figure b, the process of tearing and shelling peanuts is introduced. Figure 2 What is shown in the figure is only the principle diagram, and its specific structure refers to other drawings.

[0039] Combined with Figure 1 the structural schematic diagram and Figure 2Schematic of the principle, generally describe the operation process of this machine: When this machine is in use, peanuts are put into the feeding bin 4. Driven by the power of the peanut feeding mechanism, peanuts flow out one by one from the rear discharge port of the feeding bin 4. The peanuts flowing out are clamped by two picking arms 112 and conveyed backward. When it is conveyed above the clamping claws 2, during the process of the picking arms 112 conveying backward, another single peanut flows to the discharge port of the feeding bin waiting to be picked up. The picking arms 112 loosen and start to return to their original positions, preparing for the next operation process. While the clamping claws 2 clamp the peanuts and convey them backward, the picking arms 112 return to their original positions. At this time, the pushing baffle 115 moves backward accordingly. After the pushing baffle 115 passes through the position between the two shell-breaking claws 3, it starts to fall. The clamping claws place the peanuts between the two shell-breaking claws 3. One of the shell-breaking claws clamps the peanuts, and the other shell-breaking claw starts to move closer. At the same time, the clamping claws 2 loosen and return to their original positions, preparing for the next operation process. During the process of the clamping claws 2 returning to their original positions, the picking arms 112 can pick up another peanut and convey it to the clamping claws 2. When the other shell-breaking claw is completely close, it clamps. After clamping, the other shell-breaking claw 3 ( Figure 2 the left shell-breaking claw in Figure b of

[0040] Refer to Figure 1 and Figure 3 As shown, the feeding bin 4 is suspended on the frame 1 through a fixed seat and a pull rod 21, so that the feeding bin 4 can shake back and forth. The rear part of the feeding bin 4 is a large space, and the front part below is a gradually narrowing material passing channel. The material passing channel only allows one peanut to pass through. A limiting baffle 22 extending downward is installed on the fixed seat. The bottom of the limiting baffle 22 is provided with a passing notch corresponding to the upper material passing channel. Peanuts flow to the rear discharge port of the feeding bin from the space between the material passing channel and the passing notch. The peanut feeding mechanism includes a feeding vibration shaft 24 rotatably connected to the frame 1 and driven by a feeding motor 23. A feeding cam 25 capable of driving the feeding bin 4 to shake back and forth is installed on the feeding vibration shaft 24. The outer circumferential surface of the feeding cam 25 is its cam track, and this cam track abuts against the bottom surface of the feeding bin 4. Driven by the power of the feeding cam 25, the feeding bin 4 shakes back and forth, and an intermittent driving strategy is adopted, that is, the feeding motor 23 drives intermittently, and the feeding cam 25 rotates intermittently, so that peanuts flow out one by one.

[0041] Reference Figure 1 、 Figures 4 to 8 As shown in Figure 1 and Figures 4 to 8 , the clamping and feeding mechanism includes a clamping frame 100 connected to the frame 1. A pushing platform 101 is slidably connected to the clamping frame 100. The clamping claws 2 include two clamping claw pieces arranged oppositely and connected by an elastic device. In this embodiment, the two clamping claw pieces are two separate clamping pieces, and the two clamping pieces are respectively hinged to the above-mentioned pushing platform 101. The above-mentioned elastic device is a top spring 125 arranged between the two clamping claw pieces. The two clamping claw pieces are horizontally spaced apart and can clamp the side of the peanut. The front parts of the two clamping claw pieces form a clamping arm capable of clamping the peanut. The middle parts of the two clamping claw pieces are hinged to the pushing platform 101. A bottom support plate 102 is installed on the pushing platform 101 and located below the clamping claw pieces. The function of the bottom support plate 102 is to prevent the problem of the peanut transported from falling due to the clamping claw pieces not clamping it in time. A clamping power mechanism is connected to the pushing platform 101 and is driven by a power driving mechanism to move backward while driving the pushing platform forward and driving the two clamping arms of the two clamping claw pieces to close to clamp the peanut. A clamping reset device capable of driving the pushing platform 101 to move backward is installed on the frame 1. The clamping reset device includes a fixed support arm 26 fixedly connected to the front part of the frame 1, and a clamping reset tension spring 27 is installed between the fixed support arm 26 and the rear part of the pushing platform 101.

[0042] Reference Figure 1 、 Figures 4 to 8As shown, a longitudinal clamping guide shaft 103 is connected to the clamping frame 100, and the pushing platform 101 is slidably connected to the clamping guide shaft 103. The above-mentioned sliding connection structure can adopt the connection structure of a guide post and a guide sleeve, or other sliding connection structures in the prior art. Any sliding connection structure in the prior art can be adopted for all the sliding connection structures described below. The clamping power mechanism includes a clamping push block 104 that is slidably connected to the clamping guide shaft 103 and can push the pushing platform 101 to slide backward. Specifically, a pushing clamp sleeve 126 that is slidably connected to the clamping guide shaft 103 is fixedly connected to the above-mentioned pushing platform 101. The clamping push block 104 drives the pushing platform 101 to slide by pushing the pushing clamp sleeve 126. The clamping push block 104 is driven by a clamping power arm 105, and the clamping power arm 105 is driven by the power driving mechanism through a clamping power device. A clamping drive block 106 for closing the two clamping arms is connected to the clamping push block 104. The two clamping arms can be kept in an open state under the action of an elastic device. Specifically, the above-mentioned clamping drive block 106 has a tapered surface that gradually becomes smaller from front to back. In the initial state, there is a certain distance between the above-mentioned clamping push block 104 and the pushing clamp sleeve 126. The clamping push block 104 slides downward along the clamping guide shaft 103 by a certain distance under the drive of the clamping power arm 105, so that the two clamping arms are closed to clamp the peanuts. At this time, the above-mentioned top spring 125 is compressed. When the pushing platform 101 returns to its position, the clamping return tension spring 27 pulls the pushing platform 101 back to its position, and the clamping power arm 105 swings back to its position under the drive of the clamping power device. Of course, the above-mentioned elastic device can adopt other structures. For example, the two clamping claw pieces are made of an elastic sheet in a bent state. The above-mentioned clamping drive block 106 adopts the structure of a reduced-diameter sleeve. When the clamping drive block moves backward, it can also drive the two clamping claw pieces to close. There are other similar structures, which will not be listed one by one here.The clamping power device includes a clamping power cam 107 that is power-connected to a power driving mechanism. A first clamping swing arm 108 driven to swing by the clamping power cam 107 is connected to the frame 1. In this embodiment, the above-mentioned clamping power cam 107 adopts an embedded cam track, that is, a cam is installed on the main driving shaft 41, and an annular groove is opened on the side surface of the cam, and this annular groove is the above-mentioned cam track. A roller extending into the annular groove is connected to a branch arm of the first clamping swing arm 108. When the clamping power cam 107 rotates, the position change of the roller causes the first clamping swing arm 108 to swing. A clamping power swing arm 109 with its top power-connected to the clamping push block 104 is hinged to the frame 1. The first clamping swing arm 108 drives the clamping power swing arm 109 to swing back and forth through a clamping linkage mechanism. In this embodiment, the first clamping swing arm 108 swings downward. The clamping linkage mechanism includes a clamping intermediate transmission shaft 127 arranged below the frame 1. The clamping intermediate transmission shaft 127 extends back and forth (i.e., longitudinally arranged). The first clamping swing arm 108 is connected to the clamping intermediate transmission shaft 127 through a clamping connecting rod. The lower end of the clamping power swing arm 109 is connected to the clamping intermediate transmission shaft 127. When the first clamping swing arm 108 swings up and down, the rotation of the clamping intermediate transmission shaft 127 drives the clamping power swing arm to swing.

[0043] Reference Figure 1 、 Figures 4 to 7 And Figure 11As shown, a peanut pushing device is also connected to the pushing platform 101. This device can prevent peanuts from falling, and when moving backward with the pushing platform 101, it can push off the peanut shells and peanuts between the two shell-breaking claws 3. The peanut pushing device includes a pushing arm 114 hinged to the pushing platform 101. A pushing baffle 115 that can block in front of the clamping claws 2 is connected in front of the pushing arm 114. A pushing power driving mechanism is connected to the frame 1. This mechanism will not fall when the pushing baffle 115 moves backward, will fall when the pushing baffle 115 runs to the rearmost position, and will gradually rise when the pushing baffle moves forward. The pushing power driving mechanism includes a pushing power cam 116 that is power-connected to the power driving mechanism and is linked with the clamping power cam 107. In this embodiment, a cam track is provided on the outer circumferential surface of the pushing power cam 116. The above linkage means that the two rotate synchronously. A rotatable pushing power shaft 117 is hinged to the frame 1. A pushing power swing arm 128 is connected to the pushing power shaft 117. A sliding block that extends into the cam track on the pushing power cam 116 is provided on the branch arm of the pushing power swing arm 128. When the pushing power cam 116 rotates, the pushing power swing arm 128 swings, thereby causing the pushing power shaft 117 to rotate. A pushing swing arm 118 that can swing when it rotates is connected to the pushing power shaft 117. A pushing sliding block 119 that can slide along the pushing swing arm 118 and swing along with the pushing swing arm 118 when the pushing swing arm 118 swings is connected to the pushing arm 114. That is to say, when the above-mentioned pushing platform 101 runs backward to the last position, the above-mentioned cam track deforms, the pushing power swing arm 128 swings, and the pushing power shaft 117 rotates to drive the pushing swing arm 118 to swing, causing the pushing baffle 115 to fall. During the process of the pushing baffle 115 returning to its original position with the pushing platform 101, as the above-mentioned cam track deforms, through the linkage actions of the pushing power swing arm 128, the pushing power shaft 117, the pushing swing arm 118, etc., the pushing baffle 115 gradually rises and returns to its original position.

[0044] Reference Figure 1 、 Figure 9 、 Figure 10 And Figure 12As shown, the clamping and feeding mechanism further includes a peanut picking device connected to the frame 1. The peanut picking device includes a picking frame 110 connected to the frame 1. A picking sliding frame 111 that can slide back and forth is slidably connected to the picking frame 110. Two picking arms 112 that extend downward and are oppositely arranged are hinged to the picking sliding frame 111. A picking top spring 129 is installed between the two picking arms 112. When the two picking arms move to the most front part with the picking sliding frame 111, they are located below the rear outlet of the feeding bin 4. When they move to the last part, they are located above the clamping claws 2. A picking power mechanism is connected to the frame 1, which can drive the picking sliding frame 111 to move backward and can drive the two picking arms 112 to pick peanuts and transport them to the clamping claws 2. The picking power mechanism includes a picking drive block 120 connected to the picking sliding frame 111 and capable of driving the picking sliding frame 111 to slide along the picking frame 110. In this embodiment, a guide shaft is provided on the picking sliding frame 111, and a picking clamping sleeve 130 is fixedly connected to the guide shaft. The above-mentioned picking drive block 120 is slidably connected to the guide shaft. The picking drive block drives the picking clamping sleeve 130 to act, and then drives the picking sliding frame 111 to act. A picking power block 122 capable of driving the two picking arms 112 to close to clamp peanuts is connected to the picking drive block 120. The picking power block 122 has a closing arm that extends backward and is conically arranged. The closing arm is inserted outside the above-mentioned picking arms 112. When the picking power block 122 moves backward with the picking drive block 120, the closing arm forces the two picking arms to approach each other, thereby clamping the peanuts. Of course, the above elastic device can adopt other structures. For example, the two picking arms 112 are made of elastic sheets in a bent state. The above-mentioned picking power block 122 adopts the structure of a necking sleeve. When the picking power block 122 moves backward, it can also drive the two picking arms 112 to close. There are other similar structures, which will not be listed one by one here.A picking power swing arm 121 for driving a picking drive block 120 to slide is hinged on a frame 1. A picking power cam 123 power-connected to a power driving mechanism is connected to the frame 1. A first picking swing arm 124 is hinged on the frame 1. The first picking swing arm 120 is connected to the picking power swing arm 121 through a picking linkage mechanism and drives the picking power swing arm to swing. In this embodiment, the above-mentioned picking linkage mechanism includes a first picking intermediate transmission shaft 131 connected below the frame 1 and a picking linkage frame 133 connected to the frame. A second picking intermediate transmission shaft 134 is installed on the picking linkage frame 133. The first picking intermediate transmission shaft 131 extends left and right (i.e., is horizontally arranged). The first picking swing arm 124 is power-connected to the picking intermediate transmission shaft 131 through a first picking connecting rod 132. The top of the above-mentioned picking power swing arm 121 is power-connected to the second picking intermediate transmission shaft 134 through a second picking connecting rod. The second picking intermediate transmission shaft is power-connected to the first picking intermediate transmission shaft 131 through a third picking connecting rod. When the picking power cam 123 rotates, the first picking swing arm 124 swings, and the rotation of the first picking intermediate transmission shaft 131 drives the rotation of the second picking intermediate transmission shaft 134, thereby driving the picking power swing arm 121 to swing. In the initial state, a certain distance is left between the above-mentioned picking drive block 120 and the picking collet 130. Driven by the picking power swing arm 121, the picking drive block 120 slides a certain distance along the clamping guide shaft, so that the two picking arms clamp the peanuts. At this time, the above-mentioned picking top spring 129 is compressed. When the picking sliding frame 111 returns to its position, the picking power swing arm 121 swings back to its position under the drive of the clamping power device.

[0045] Reference Figures 1 to 11, the operation process of the clamping and feeding mechanism is described in detail: For the peanuts at the discharge port at the rear of the feeding bin 4, the picking power cam 123 drives the picking power swing arm 121 to swing, the picking driving block 120 slides backward, the picking power block 122 drives the two picking arms 112 to clamp the peanuts, and then the picking driving block 120 drives the picking sliding frame 111 to slide backward. During the process of the picking arms 112 transporting the peanuts backward, another single peanut flows to the discharge port of the feeding bin 4 to wait for picking. When it is transported above the clamping claws 2, the rotation of the picking power cam 123 causes the picking power swing arm 121 to swing, and the picking power block 122 returns under the drive of the picking driving block 120. The picking arms 112 release the peanuts, and the peanuts fall between the two clamping claw pieces. The entire picking sliding frame 111 returns to prepare for the next operation process. The clamping power cam 107 rotates to cause the clamping power swing arm 109 to swing. The clamping push block 104 slides downward along the clamping guide shaft 103 by a certain distance under the drive of the clamping power arm 105, so that the two clamping arms close to clamp the peanuts. At this time, the above-mentioned top spring 125 is compressed. The clamping power arm 105 continues to swing, and the clamping power block drives the entire pushing platform 101 to slide backward. At this time, the pushing arm 114 and the pushing baffle 115 both slide backward with the pushing platform. When the pushing platform 101 runs backward to the final position, the pushing power swing arm 128 swings to make the pushing baffle 115 fall. After the clamping claws place the peanuts between the two shell-breaking claws 3, the clamping power cam 107 rotates to cause the clamping power arm 105 to swing. During the process of the pushing baffle 115 returning with the pushing platform 101, the pushing baffle 115 gradually rises and returns. The clamping return spring 27 pulls the pushing platform 101 to return, and the clamping power arm 105 swings back under the drive of the clamping power device to prepare for the next operation process. During the process of the clamping claws 2 returning, the picking arms 112 can pick another peanut and transport it to the clamping claws 2. Through the continuous operation of the above process, the continuous picking and conveying of single peanuts can be realized, which has the advantages of accurate conveying and high conveying efficiency.

[0046] Reference Figure 1 、 Figures 13 to 19 As shown in Figure 13 , it is the above-mentioned initial state, that is, the state when the two shell-breaking claws are farthest apart. At this time, both of the two shell-breaking claws 3 are in the open state. Figure 17 It is the state when the two shell-breaking claws 3 are closest to each other. The shell-breaking claw on the left side in the figure is a slidable shell-breaking claw, that is, a tearing shell-breaking claw. Both of the two shell-breaking claws in the figure are in the state of grasping the peanuts. The shell-breaking mechanism includes two opposite shell-breaking claws 3. The two shell-breaking claws 3 are respectively a clamping shell-breaking claw that can clamp one side of the peanut and a tearing shell-breaking claw that can clamp the other side of the peanut and perform tearing. The clamping shell-breaking claw and the tearing shell-breaking claw are both composed of two upper and lower opposite claw bodies. The claw body includes a shell-breaking claw plate and a plurality of claw heads that are connected to the shell-breaking claw plate and are arranged at intervals. The plurality of claw heads are similar to the shape of fingers. Figure 19Shows the structure of a part of the shell-breaking claw 3. Figure 19 Figure d in Figure 19 is a schematic structure diagram of the claw body that holds the upper part of the shell-breaking claw. Figure 19 Figure e in Figure 19 is a schematic structure diagram of the claw body that tears the upper part of the shell-breaking claw. The claw head is bent, and the claw heads on the two claw bodies that are opposite to each other up and down are bent towards each other. The claw heads on the holding shell-breaking claw are staggered from the claw heads on the tearing shell-breaking claw. The shell-breaking claw 3 with this structure completely imitates the process of manual shelling, with precise shelling and high efficiency. Two shelling clamp handles 5 that are hinged to each other are correspondingly connected to the two claw bodies that are opposite to each other up and down. That is, the shelling clamp handle 5 is similar to the structure of a hinged pliers handle (which can also be called a scissor-type hinge). A spring pressing mechanism that can drive the two claw bodies to approach each other to form a clamping state is installed at the rear of the shelling clamp handle 5. A fixed shell-breaking seat 6 and a tearing shell-breaking seat 7 are installed on the frame 1. The two shelling clamp handles of the holding shell-breaking claw are hinged to the fixed shell-breaking seat 6. A shell-breaking sliding box 8 that can slide left and right is slidably connected to the tearing shell-breaking seat 7. The two shelling clamp handles of the tearing shell-breaking claw are hinged to the shell-breaking sliding box 8.

[0047] Reference Figure 1 、 Figure 13 、 Figures 16 to 18 As shown in Figures 16 to 18 , a holding shell-breaking power mechanism that drives the holding shell-breaking claw to hold peanuts is connected to the frame 1. The holding shell-breaking power mechanism includes a holding shell-breaking slider 9 that is slidably connected to the fixed shell-breaking seat 6. Oppositely protruding raised parts are correspondingly provided on the two shelling clamp handles of the holding shell-breaking claw. When the holding shell-breaking slider 9 slides, it can extend into the space between the two raised parts, so that the two claw bodies of the holding shell-breaking claw are in an open state. A holding shell-breaking swing arm 10 that drives the holding shell-breaking slider 9 to slide left and right is hinged to the frame 1. A holding shell-breaking cam 11 is installed on the frame 1. A swingable holding shell-breaking power arm 12 is power-connected to the holding shell-breaking cam 11. The holding shell-breaking power arm 12 is hinged to the frame through a support. The holding shell-breaking swing arm 10 is power-connected to the holding shell-breaking power arm 12 through a holding shell-breaking linkage mechanism. In this embodiment, with key reference to Figure 18 , the outer surface of the above-mentioned holding shell-breaking cam 11 is its cam track. The holding shell-breaking power arm 12 is leaned against the cam track of the holding shell-breaking cam 11 through a connecting head. A shell-breaking spring 20 is installed on the frame. The upper end of the shell-breaking spring 20 is connected to the holding shell-breaking power arm 12, so as to ensure that the holding shell-breaking power arm 12 can receive the power drive of the holding shell-breaking cam 11. The above-mentioned holding shell-breaking linkage mechanism includes a holding shell-breaking connecting rod 28. The two ends of the holding shell-breaking connecting rod 28 are respectively hinged to the holding shell-breaking power arm 12 and the holding shell-breaking swing arm 10. When the holding shell-breaking cam 11 rotates, after rotating to a certain angle, it drives the holding shell-breaking power arm 12 to swing, and drives the holding shell-breaking swing arm 10 to swing through the holding shell-breaking connecting rod 28, so that the holding shell-breaking slider 9 enters and exits the space between the two raised parts, that is, drives the two claw bodies to be in an open or clamping state.

[0048] refer to Figure 1 , Figure 14 , Figures 15 to 16 As shown, the frame 1 is connected with a shell-tearing power mechanism that drives the shell-tearing claws to slide and tear the peanut shells. The shell-tearing power mechanism includes a support pin 13 connected to the shell-tearing seat 7, and the support pin 13 is located on the inner side of the two shelling clamping handles 5. The two shelling clamping handles of the shell-tearing claws are correspondingly provided with raised portions that protrude backwards, and when the shell-tearing claws are closest to the position of clamping the shell-tearing claws, the support pin 13 is located in the raised portion. The shell-tearing sliding box 8 is slidably connected with a tearing inner slider 14, and the tearing inner slider 14 is connected to the rear of the shelling clamping handles by a pulling spring 15. The frame 1 is connected with a shell-tearing crank 16 that is power-connected to the power drive mechanism, and the shell-tearing crank 16 is connected with a tearing connecting rod 17 that can drive the shell-tearing sliding box 8 to slide, and the end of the tearing connecting rod 17 is hinged on the tearing inner slider 14. Figures 13 to 17 As shown, the spring mechanism includes a vertical guide rod 18 installed at the rear of the shelling clamp handle, and the upper and lower ends of the vertical guide rod 18 are provided with guide rod blocks, wherein a pressing spring 19 is installed between the upper or lower guide rod block and the adjacent shelling clamp handle. Under the action of the pressing spring 19, the rear parts of the two shelling clamp handles tend to move closer to each other, thereby making the two claws at the other ends of the two shelling clamp handles tend to move closer to each other. The tearing link 17 has a long slot hole, and the vertical guide rod 18 passes through the long slot hole. The tearing link 17 is Figure 13 When the shell breaking sliding box 8 is about to be pushed to slide, the two shelling clamping handles of the shell breaking claw are opened under the action of the support pin 13; the tearing connecting rod 17 is in the middle position. Figure 17 When the shell breaking sliding box 8 is in the middle position, it is in the state of just pulling the entire shell breaking sliding box 8 to slide, and the two shelling clamping handles of the shell breaking claws are torn under the action of the supporting pin 13 so that the two claw bodies are in a closed state.

[0049] refer to Figure 1 , Figures 12 to 19, the operation process of the shell-breaking mechanism is described in detail: when the clamping claw 2 sends the clamped peanut to the position between the two shell-breaking claws 3, the pushing baffle 115 starts to fall after passing through the position between the two shell-breaking claws 3. The pushing baffle 115 can push the peanut shell or peanut kernel that has not fallen before. The clamping and shell-breaking slider 9 is about to move away from the space between the two protrusions on the two peeling clip handles of the clamping and shell-breaking claw under the driving force of the clamping and shell-breaking swing arm 10. The tearing and shell-breaking claw is about to reach the position under the driving force of the tearing connecting rod 17. After the clamping and shell-breaking slider 9 completely leaves the above space, the clamping and shell-breaking claw clamps the peanut. When the tearing and shell-breaking claw reaches the position, the supporting pin shaft 13 is located in the protrusion of the peeling clip handle of the tearing and shell-breaking claw. The two claw bodies of the tearing and shell-breaking claw close to hold the peanut. The tearing and shell-breaking crank 16 continues to rotate with the main drive shaft. The tearing connecting rod 17 pulls the entire shell-breaking sliding box 8 to slide. The tearing and shell-breaking claw clamps the peanut and tears it outwards, so the peanut shell will be broken. After the shell-breaking is completed, both shell-breaking claws 3 release the peanut, and the peanut shell and peanut kernel both fall through the blanking hole 50 on the frame. Repeat the above cycle, so that the shelling of a single peanut can be continuously carried out.

[0050] The present invention is not limited by the above embodiments. For those skilled in the art, equivalent changes and component replacements based on the specific structure of the present invention are within the protection scope of the present invention.

Claims

1. A peanut shelling machine, comprising a frame (1), characterized in that: At the front of the frame (1), there is a feeding bin (4) and a peanut feeding mechanism that drives the feeding bin (4) to convey peanuts backward one by one. On one side of the frame (1), there is a power driving mechanism. On the frame (1), there are also a clamping and feeding mechanism and a shelling mechanism that are driven by the power driving mechanism and are linked in sequence from front to back. The clamping and feeding mechanism includes a clamping claw (2) that is driven by the power driving mechanism, is used to clamp peanuts and convey them backward, then release the peanuts and can retreat. The shelling mechanism includes two shelling claws (3) that are driven by the power driving mechanism, can approach each other to clamp the peanuts, shell them, then release and return to their respective positions and are arranged oppositely; The gripping and feeding mechanism comprises a gripping frame (100) connected to a frame (1), a pushing platform (101) being slidably connected to the gripping frame (100), the gripping claw (2) comprising two gripping claw pieces arranged opposite to each other and connected by an elastic device, the front parts of the two gripping claw pieces forming a gripping arm capable of gripping peanuts, the middle parts of the two gripping claw pieces being hinged to the pushing platform (101), the pushing platform (101) being connected to a gripping power mechanism which is driven by a power drive mechanism to move backward and can drive the pushing platform forward at the same time, and drives the two gripping arms of the two gripping claw pieces to close and grip the peanuts, the frame (1) being provided with a gripping power mechanism which can drive the pushing platform (101) to move backward and can drive the pushing platform forward at the same time, and drives the two gripping arms of the two gripping claw pieces to close and grip the peanuts, The clamping frame (100) is connected to a longitudinal clamping guide shaft (103), the pushing platform (101) is slidably connected to the clamping guide shaft (103), the clamping power mechanism comprises a clamping push block (104) slidably connected to the clamping guide shaft (103) and capable of pushing the pushing platform (101) to slide backward, the clamping push block (104) is driven by a clamping power arm (105), the clamping power arm (105) is driven by the power drive mechanism through the clamping power device, and the clamping push block (104) is connected to a clamping drive block (106) for closing the two clamping arms. ), the two clamping arms can maintain an open state under the action of the elastic device; the clamping and feeding mechanism also includes a peanut receiving device connected to the frame (1), the peanut receiving device includes a receiving frame (110) connected to the frame (1), a receiving sliding frame (111) that can slide forward and backward is slidably connected to the receiving frame (110), and two receiving arms (112) that extend downward and are arranged opposite to each other are hingedly connected to the receiving sliding frame (111), and the two receiving arms are located below the rear outlet of the feed bin (4) when the receiving sliding frame (111) moves to the frontmost part, and are located above the clamping claw (2) when the receiving sliding frame (111) moves to the rearmost part, and are located above the clamping claw (2), and the frame (1) is connected to a receiving sliding frame that drives the receiving sliding frame (111) a receiving power mechanism that moves backward and can drive two receiving arms (112) to receive peanuts and transport them to the clamping claws (2); the shell breaking mechanism includes two opposing shell breaking claws (3), the two shell breaking claws (3) are respectively a clamping shell breaking claw that can clamp one side of the peanut and a tearing shell breaking claw that can clamp the other side of the peanut and tear it, the clamping shell breaking claw and the tearing shell breaking claw are both composed of two claw bodies that are opposite to each other up and down, the claw body includes a shell breaking claw plate and a plurality of claw heads connected to the shell breaking claw plate and arranged at intervals, the claw heads are arranged in a bent manner and the claw heads on the two claw bodies that are opposite to each other up and down are bent towards each other, and the claw heads on the clamping shell breaking claw and the claw heads on the tearing shell breaking claw are arranged in a staggered manner.

2. The peanut shelling machine according to claim 1, characterized in that: The clamping power device includes a clamping power cam (107) that is power-connected to a power driving mechanism. A first clamping swing arm (108) that is driven to swing by the clamping power cam (107) is connected to the frame (1). A clamping power swing arm (109) whose top is power-connected to a clamping push block (104) is hinged to the frame (1). The first clamping swing arm (108) drives the clamping power swing arm (109) to swing back and forth through a clamping linkage mechanism.

3. The peanut shelling machine according to claim 1, characterized in that: Two mutually hinged shelling clamping handles (5) are correspondingly connected to the two oppositely arranged claw bodies. A spring pressing mechanism that can drive the two claw bodies to approach each other to form a clamping state is installed at the rear of the shelling clamping handle (5). A fixed shell-breaking seat (6) and a tearing shell-breaking seat (7) are installed on the frame (1). The two shelling clamping handles of the clamping shell-breaking claws are hinged to the fixed shell-breaking seat (6). A shell-breaking sliding box (8) that can slide left and right is slidably connected to the tearing shell-breaking seat (7). The two shelling clamping handles of the tearing shell-breaking claws are hinged to the shell-breaking sliding box (8). A clamping shell-breaking power mechanism that drives the clamping shell-breaking claws to clamp peanuts and a tearing shell-breaking power mechanism that drives the tearing shell-breaking claws to slide and tear the peanut shell are connected to the frame (1).

4. The peanut shelling machine according to claim 3, characterized in that: The clamping shell-breaking power mechanism includes a clamping shell-breaking slider (9) that is slidably connected to the fixed shell-breaking seat (6). Oppositely protruding raised parts are correspondingly provided on the two shelling clamping handles of the clamping shell-breaking claws. When the clamping shell-breaking slider (9) slides, it can extend into the space between the two raised parts so that the two claw bodies of the clamping shell-breaking claws are in an open state. A clamping shell-breaking swing arm (10) that drives the clamping shell-breaking slider (9) to slide left and right is hinged to the frame (1). A clamping shell-breaking cam (11) is installed on the frame (1). A swingable clamping shell-breaking power arm (12) is power-connected to the clamping shell-breaking cam (11). The clamping shell-breaking swing arm (10) is power-connected to the clamping shell-breaking power arm (12) through a clamping shell-breaking linkage mechanism.

5. The peanut sheller according to claim 3, characterized in that: The tearing shell-breaking power mechanism includes a support pin shaft (13) that is connected to the tearing shell-breaking seat (7). The support pin shaft (13) is located inside the two shelling clamping handles (5). Oppositely protruding raised parts are correspondingly provided on the two shelling clamping handles of the tearing shell-breaking claws, and the support pin shaft (13) is located inside the raised parts when the tearing shell-breaking claws run to the position closest to the clamping shell-breaking claws. A tearing inner slider (14) is slidably connected in the shell-breaking sliding box (8). The tearing inner slider (14) is connected to the rear part of the shelling clamping handle through a pulling spring (15). A tearing shell-breaking crank (16) that is power-connected to the power driving mechanism is connected to the frame (1). A tearing connecting rod (17) that can drive the shell-breaking sliding box (8) to slide is connected to the tearing shell-breaking crank (16). The end of the tearing connecting rod (17) is hinged to the tearing inner slider (14).

6. The peanut shelling machine according to claim 3, characterized in that: The spring pressing mechanism includes a vertical guide rod (18) that is inserted through the rear part of the shelling clamping handle. Guide rod stoppers are provided at both the upper and lower ends of the vertical guide rod (18). A top pressure spring (19) is installed between the guide rod stopper at the upper part or the lower part and the adjacent shelling clamping handle.

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