Longan shell opening device

Abstract

The utility model discloses a longan shell opening device, which relates to longan processing equipment and comprises a fixed seat, a guide seat, a bearing support and a fruit fixing cup. A center guide column is installed in the fixing base, the fruit fixing cup is installed on the top of the center guide column through an elastic mechanism, the guide base is installed in the center guide column in a sliding mode, a set of clamping swing hands are installed on the fixing base in a hinged mode, and the clamping swing hands penetrate through the guide base and extend to the outer side of the fruit fixing cup. A group of shell opening swinging hands are mounted on the fixed seat in a hinged manner, penetrate through the guide seat and extend to the upper part of the fruit fixing cup; the bearing support is installed on the fixing base, a connecting frame is rotatably installed on the bearing support, and a fruit breaking knife with a knife edge facing the fruit fixing cup is installed on one side of the connecting frame. According to the longan shell breaking and opening device, the shells of longan are broken and opened, and the problems that in the prior art, shell opening is not thorough, and shells are prone to remaining on pulp are solved.

Description

Technical Field

[0001] The utility model relates to longan processing equipment, and more specifically, to a longan shelling device. Background Art

[0002] Longan is also known as dried longan. Dried longan pulp is not only convenient for storage but also widely used as an ingredient in soups, playing the role of replenishing qi and blood and reducing fatigue. When processing fresh longan fruits, shelling - de - fleshing - pitting operations are required. Currently, for the shelling of longan, an extrusion - cutting shelling method is adopted. For example, the existing shelling device is provided with a peeling metal plate and a peeling knife. The peeling metal plate is provided with peeling through - holes, and the peeling knife is located above the peeling through - holes. When the peeling knife moves downward, when the longan is slightly pressed, it is first cut by the blade on the hole, and when it is continuously pressed by the peeling knife, it breaks out of the shell and enters the next round of pitting work. However, such a shelling method only cuts the periphery and the upper part of the longan shell, and the cutting position is fixed. In this way, it is easy to cause the situation that the cut parts of the longan shell are still adhered and not completely broken, and the shell still covers the pulp. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a longan shelling device in view of the deficiencies of the prior art, which solves the problems of incomplete shelling and easy residue of the shell on the pulp in the prior art.

[0004] A longan shelling device described in the utility model includes a fixed seat, a guiding seat, a bearing bracket, and a fruit - fixing cup; a central guiding column is installed in the fixed seat, the fruit - fixing cup is installed at the top of the central guiding column through an elastic mechanism, the guiding seat is slidably installed in the central guiding column, a group of clamping swing arms are hingedly installed on the fixed seat, the clamping swing arms penetrate through the guiding seat and extend to the outside of the fruit - fixing cup, a group of shelling swing arms are hingedly installed on the fixed seat, the shelling swing arms penetrate through the guiding seat and extend above the fruit - fixing cup; the bearing bracket is installed on the fixed seat, a connecting frame is rotatably installed on the bearing bracket, and a fruit - breaking knife with a blade facing the fruit - fixing cup is installed on one side of the connecting frame.

[0005] For further improvement, the shelling swing arm includes a first connecting rod, a shelling pull head, and a pull - head shaft rod; the first connecting rod is hingedly installed on the fixed seat, the first connecting rod penetrates through the guiding seat, the shelling pull head is rotatably installed at the end of the first connecting rod, a connecting piece is installed on the shelling pull head, a shelling hook is provided at the end of the connecting piece, the shelling hook is located above the fruit - fixing cup, a first torsion spring is installed at the connection between the shelling pull head and the first connecting rod, one end of the first torsion spring is installed on the first connecting rod, the other end of the first torsion spring is installed on the shelling pull head, and the pull - head shaft rod is installed on one side of the shelling pull head.

[0006] Further, a separation groove is provided at the end of the shell-opening pull head, so that there is a pull rod on both sides of the separation groove, and a shell-opening hook is provided at the end of each pull rod.

[0007] Further, a first through hole is provided on the guide seat. On both opposite sides of the first through hole, there are first semi-circular convex blocks. A first gap matching the first connecting rod is provided between the two first semi-circular convex blocks, and the first connecting rod is inserted into the first gap.

[0008] For further improvement, the clamping swing arm includes a second connecting rod and a first steel sheet; the second connecting rod is hingedly installed on the fixed seat, the second connecting rod penetrates through the guide seat, the first steel sheet is installed at the end of the second connecting rod, the first steel sheet extends to the outside of the fruit-fixing cup, a saw-tooth strip is fixedly provided at the end of the first steel sheet, and a notch is provided at the position of the fruit-fixing cup corresponding to the saw-tooth strip.

[0009] Further, a second through hole is provided on the guide seat. On both opposite sides of the second through hole, there are second semi-circular convex blocks. A second gap matching the second connecting rod is provided between the two second semi-circular convex blocks, and the second connecting rod is inserted into the second gap.

[0010] For further improvement, the elastic mechanism includes a plug rod, a first spring and a positioning sleeve; one end of the plug rod is fixedly connected to the fruit-fixing cup, the other end of the plug rod is movably inserted into the top end of the central guide post, the positioning sleeve is fixed at the top of the central guide post, the first spring is arranged above the central guide post, and the first spring is sleeved on the plug rod.

[0011] Further, a plurality of uniformly arranged stop grooves are provided on the side wall of the plug rod, a cut groove is provided on the positioning sleeve, a V-shaped plug is rotatably installed in the cut groove, an insertion end matching the stop groove is provided on the V-shaped plug, a snap ring is installed on the side of the V-shaped plug away from the central guide post, a second steel sheet is installed on one of the shell-opening swing arms, and the end of the second steel sheet is inserted into the snap ring.

[0012] For further improvement, a tension spring is provided between the guide seat and the fixed seat.

[0013] Beneficial effects

[0014] The advantages of the present utility model are as follows:

[0015] 1. Through the elastically installed fruit-fixing cup, fruit-breaking knife, clamping swing arm and shell-opening swing arm, the shell-breaking and shell-opening of longan are realized, which is convenient for subsequent removal of the pulp and pit of longan from the fruit shell, and solves the problems of incomplete shell-opening and easy residue of the fruit shell on the pulp in the prior art. Moreover, the clamping of longan can improve the stability during shell-breaking, avoiding the problem of incomplete shell-breaking or even no shell-breaking caused by the displacement of longan.

[0016] 2. The fixed fruit cup is installed at the top of the central guide post through an elastic mechanism, enabling the fixed fruit cup to have a certain amount of expansion and contraction. When longans are placed in the fixed fruit cup, longans of different sizes have different downward pressing amounts on the fixed fruit cup. In this way, the central position of the longans can be automatically adjusted, making the central positions of longans of different sizes basically on the same horizontal plane. Thus, the gap between the longans and the fruit-breaking knife during shell-breaking is reduced, and further, the amount of cutting into the longan pulp during shell-breaking is reduced, ensuring the integrity of the pulp.

[0017] 3. Through the settings of the stop groove, V-shaped plug-in, and steel sheet II, the positioning of the plug rod connected to the fixed fruit cup can be effectively carried out, avoiding the problem of poor shell-breaking effect caused by the downward movement of the fixed fruit cup due to the pressure on the longans. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the longan shell-breaking device of the present utility model;

[0019] Figure 2 is a front structural schematic diagram of the longan shell-breaking device of the present utility model;

[0020] Figure 3 is a left structural schematic diagram of the longan shell-breaking device of the present utility model;

[0021] Figure 4 is a connection structural schematic diagram of the elastic mechanism and the shell-breaking swing arm of the present utility model;

[0022] Figure 5 is based on Figure 4 a cross-sectional schematic diagram of the connection structure of the elastic mechanism and the shell-breaking swing arm;

[0023] Figure 6 is a three-dimensional structural schematic diagram of the guide seat of the present utility model.

[0024] Wherein: 20 - fixed seat, 21 - guide seat, 22 - central guide post, 23 - shell-breaking swing arm, 24 - clamping swing arm, 25 - fixed fruit cup, 26 - bearing bracket, 27 - connecting frame, 28 - fruit-breaking knife, 29 - tension spring, 210 - through hole I, 211 - semi-circular convex block I, 212 - gap I, 213 - through hole II, 214 - semi-circular convex block II, 215 - gap II, 216 - push rod, 230 - connecting rod I, 231 - shell-breaking pull head, 232 - connecting piece, 233 - shell-breaking hook, 234 - pull head shaft rod, 235 - separation groove, 236 - steel sheet II, 237 - torsion spring I, 240 - connecting rod II, 241 - steel sheet I, 242 - sawtooth rack, 250 - notch, 251 - plug rod, 252 - spring I, 253 - positioning sleeve, 254 - cutting groove, 255 - V-shaped plug-in, 256 - snap ring, 257 - stop groove. Detailed Embodiment

[0025] Combined with the embodiments below, the present utility model will be further described, but it does not constitute any limitation to the present utility model. Any person's limited modifications within the scope of the claims of the present utility model are still within the scope of the claims of the present utility model.

[0026] Refer to Figures 1-6 , a longan shelling device of the present utility model includes a fixed seat 20, a guide seat 21, a bearing bracket 26 and a fruit fixing cup 25. A central guide post 22 is installed in the fixed seat 20, and the fruit fixing cup 25 is installed at the top of the central guide post 22 through an elastic mechanism, so that the fruit fixing cup 25 has a certain amount of expansion and contraction. Since the size and weight of each longan are different, through the elastic design of the fruit fixing cup 25, the central position of the longan is automatically adjusted by the different downward pressing amounts of the longan on the fruit fixing cup 25, so that the central positions of longans of different sizes are basically on the same horizontal plane, thereby reducing the gap between the longan and the fruit shelling knife 28 during shelling, and further reducing the amount of cutting into the longan pulp during shelling. For example, for larger longans, their own weight is larger, and the downward pressing amount on the fruit fixing cup 25 is larger; while for smaller longans, their own weight is smaller, and the downward pressing amount on the fruit fixing cup 25 is smaller, so that the central positions of longans of different sizes can be ensured to be basically at the same horizontal position. In actual operation, only the displacement amount of the fruit shelling knife 28 needs to be set according to the minimum size of longans of the same specification. The guide seat 21 is slidably installed in the central guide post 22, and a group of clamping swing arms 24 are hingedly installed on the fixed seat 20. Among them, a group of clamping swing arms 24 consists of two, and the two clamping swing arms 24 are symmetrically arranged. The clamping swing arms 24 penetrate through the guide seat 21 and extend to the outside of the fruit fixing cup 25 for clamping the longan in the fruit fixing cup 25. A group of shelling swing arms 23 are hingedly installed on the fixed seat 20. Among them, a group of shelling swing arms 23 consists of two, and the two shelling swing arms 23 are symmetrically arranged. The shelling swing arms 23 penetrate through the guide seat 21 and extend above the fruit fixing cup 25 for shelling the shelled longan. The bearing bracket 26 is installed on the fixed seat 20, a connecting frame 27 is rotatably installed on the bearing bracket 26, and a second torsion spring is provided between the connecting frame 27 and the bearing bracket 26 so that the connecting frame 27 can automatically reset after rotation; a stop bar is also provided on the bearing bracket 26, and the stop bar blocks the side of the connecting frame 27 away from the fruit fixing cup 25 to block and position the connecting frame 27 in the vertical direction. A fruit shelling knife 28 with a cutting edge facing the fruit fixing cup 25 is installed on one side of the connecting frame 27 for shelling the longan. Through the elastically installed fruit fixing cup 25, fruit shelling knife 28, clamping swing arms 24 and shelling swing arms 23, the shelling and opening of the longan are realized, which is convenient for subsequent removal of the pulp and pit of the longan from the fruit shell, and the clamping of the longan can improve the stability during shelling, avoiding the phenomenon that the longan is displaced and the shelling is not in place or even no shelling occurs.

[0027] For the shell-opening swinging arm 23 of this embodiment, it includes a first connecting rod 230, a shell-opening pull head 231, and a pull head shaft rod 234. The first connecting rod 230 is hingedly installed on the fixed seat 20, and the first connecting rod 230 passes through the guide seat 21. Specifically, a first through hole 210 is formed on the guide seat 21, and semi-circular bumps 211 are provided on both opposite sides of the first through hole 210. A first gap 212 matching the first connecting rod 230 is provided between the two semi-circular bumps 211, and the first connecting rod 230 is inserted into the first gap 212. When the guide seat 21 is in the lowermost position, the first connecting rod 230 is inclined outward. When the guide seat 21 moves upward, since the distance between the first gap 212 and the central guide post 22 remains unchanged, the first connecting rod 230 moves toward the central guide post 22, and the two shell-opening swinging arms 23 form a closed state. The shell-opening pull head 231 is rotatably installed at the end of the first connecting rod 230. A connecting piece 232 is installed on the shell-opening pull head 231. A shell-opening hook 233 is provided at the end of the connecting piece 232. The shell-opening hook 233 is located above the fixed fruit cup 25. A first torsion spring 237 is installed at the connection between the shell-opening pull head 231 and the first connecting rod 230. One end of the first torsion spring 237 is installed on the first connecting rod 230, and the other end of the first torsion spring 237 is installed on the shell-opening pull head 231. The pull head shaft rod 234 is installed on one side of the shell-opening pull head 231. After the two shell-opening swinging arms 23 are closed, the shell-opening hook 233 will be located above the fixed fruit cup 25. At this time, when the pull head shaft rod 234 is pressed down, the shell-opening pull head 231 will rotate, and the shell-opening hook 233 will move toward the fixed fruit cup 25. Eventually, the shell-opening hook 233 will contact the longan in the fixed fruit cup 25 and hook at the position where the longan shell is cracked. When the pull head shaft rod 234 is released, the shell-opening pull head 231 will reset under the action of the first torsion spring 237. At the same time, the shell-opening hook 233 hooks the fruit shell and pulls it open, exposing the pulp in the longan, so as to facilitate its extraction.

[0028] Preferably, a separation groove 235 is formed at the end of the shell-opening pull head 231, so that there is a pull rod on both sides of the separation groove 235, and a shell-opening hook 233 is provided at the end of each pull rod. With this setting, the shell-opening hook 233 can be more effectively inserted into the cracked position of the fruit shell.

[0029] The clamping swing arm 24 of this embodiment includes a second connecting rod 240 and a first steel sheet 241. The second connecting rod 240 is hingedly installed on the fixed seat 20, and the second connecting rod 240 penetrates through the guide seat 21. Specifically, a second through hole 213 is provided on the guide seat 21, and semi-circular bumps 214 are provided on both opposite sides of the second through hole 213. A second gap 215 matching the second connecting rod 240 is provided between the two semi-circular bumps 214, and the second connecting rod 240 is inserted into the second gap 215. The movement state of the second connecting rod 240 is the same as that of the first connecting rod 230, that is, when the guide seat 21 is in the lowest position, the second connecting rod 240 is inclined outward. When the guide seat 21 moves upward, the second connecting rod 240 moves toward the central guide post 22, and the two clamping swing arms 24 form a closed state. The first steel sheet 241 is installed at the end of the second connecting rod 240, the first steel sheet 241 extends to the outside of the fixed fruit cup 25, and a sawtooth rack 242 is fixedly provided at the end of the first steel sheet 241. A notch 250 is provided at the position of the fixed fruit cup 25 corresponding to the sawtooth rack 242. When the two clamping swing arms 24 are closed, they form a clamping effect on the longan in the fixed fruit cup 25, and the clamping swing arm 24 clamps through the contact between the sawtooth rack 242 and the longan, and the clamping effect is better.

[0030] As Figure 4 and Figure 5 shown, the elastic mechanism includes a plug rod 251, a first spring 252, and a positioning sleeve 253. One end of the plug rod 251 is fixedly connected to the fixed fruit cup 25, and the other end of the plug rod 251 is movably inserted into the top end of the central guide post 22 and is slidably connected to the central guide post 22, which can effectively prevent the rotation of the plug rod 251. The positioning sleeve 253 is fixed on the top of the central guide post 22, the first spring 252 is provided above the central guide post 22, and the first spring 252 is sleeved on the plug rod 251, thereby realizing the elastic installation of the fixed fruit cup 25.

[0031] Although the clamping swing arm 24 can clamp the longan, the clamping force is limited. When the fruit-breaking knife presses down to crack the shell, there will still be a phenomenon that the longan is pressed and moves downward. To solve this problem, in this embodiment, a plurality of uniformly arranged stop grooves 257 are provided on the side wall of the insertion rod 251, a cutting groove 254 is provided on the positioning sleeve 253, a V-shaped plug-in 255 is rotatably installed in the cutting groove 254, the V-shaped plug-in 255 is provided with an insertion end matching the stop groove 257, a snap ring 256 is installed on the side of the V-shaped plug-in 255 away from the central guide post 22, and a second steel sheet 236 is installed on one of the shell-opening swing arms 23. The end of the second steel sheet 236 is inserted into the snap ring 256. During the process of the connecting frame 27 driving the fruit-breaking knife 28 to rotate and press down, the upward movement of the guide seat 21 also drives the first connecting rod 230 to rotate towards the central guide post 22, and the rotation of the first connecting rod 230 will cause the second steel sheet 236 to get closer and closer to the central guide post 22, thereby causing the V-shaped plug-in 255 to rotate, and its insertion end will move towards the insertion rod 251 and finally be inserted into the stop groove 257, so as to position the insertion rod 251, effectively avoiding the problem that the fixed fruit cup 25 moves downward due to the longan being pressed.

[0032] In addition, a tension spring 29 is provided between the guide seat 21 and the fixed seat 20 to facilitate the reset of the guide seat 21. Specifically, two symmetrically arranged mounting rods are fixed on the guide seat 21, two mounting blocks corresponding to the mounting rods are fixed on the fixed seat 20, and both ends of the tension spring 29 are respectively hooked on the mounting rod and the mounting block. Push rods 216 are also fixed on both sides of the guide seat 21 for pushing the guide seat 21 to move.

[0033] The working principle of the present utility model is as follows: During work, the longan is placed in the fixed fruit cup 25, and then the push rod 216 is pushed, so that the guide seat 21 moves along the central guide post 22 towards its top direction. The upward movement of the guide seat 21 will drive all the connecting rods to rotate towards the central guide post 22, so that the two clamping swing arms 24 and the two shell-opening swing arms 23 form a closed state. When the guide seat 21 stops moving upward, the clamping swing arm 24 and the shell-opening swing arm 23 will be in place at the same time. At this time, the clamping swing arm 24 clamps the longan in the fixed fruit cup 25. At the same time, the insertion end of the V-shaped plug-in 255 is also inserted into the corresponding stop groove 257 to position the insertion rod 251. Then, the connecting frame 27 is pressed down, which will drive the fruit-breaking knife 28 to rotate towards the fixed fruit cup 25. When the fruit-breaking knife 28 is in place, the longan is squeezed and cracked. Immediately afterwards, the connecting frame 27 is released, which drives the fruit-breaking knife 28 to reset. And when the fruit-breaking knife 28 is reset, the pull head shaft rod 234 is pulled down to drive the shell-opening pull head 231 to rotate, and the shell-opening hook 233 will move towards the fixed fruit cup 25 and finally contact the longan in the fixed fruit cup 25 and be inserted into the cracked part. When the pull head shaft rod 234 is released, the shell-opening hook 233 will pull open the fruit shell while resetting, so that the pulp in the longan is exposed, and the longan shell-opening action is completed.

[0034] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the present utility model, several modifications and improvements can be made, which will not affect the implementation effect of the present utility model and the practicability of the patent.

Claims

1. A longan shelling device, characterized in that, It includes a fixed seat (20), a guiding seat (21), a bearing bracket (26) and a fruit-fixing cup (25); a central guide post (22) is installed in the fixed seat (20), the fruit-fixing cup (25) is installed at the top of the central guide post (22) through an elastic mechanism, the guiding seat (21) is slidably installed in the central guide post (22), a group of clamping swing hands (24) are hingedly installed on the fixed seat (20), the clamping swing hands (24) penetrate through the guiding seat (21) and extend to the outside of the fruit-fixing cup (25), a group of shell-opening swing hands (23) are hingedly installed on the fixed seat (20), the shell-opening swing hands (23) penetrate through the guiding seat (21) and extend above the fruit-fixing cup (25); the bearing bracket (26) is installed on the fixed seat (20), a connecting frame (27) is rotatably installed on the bearing bracket (26), and a fruit-breaking knife (28) with a blade facing the fruit-fixing cup (25) is installed on one side of the connecting frame (27).

2. The longan shelling device according to claim 1, characterized in that, The shell-opening swing hand (23) includes a first connecting rod (230), a shell-opening pull head (231) and a pull head shaft rod (234); the first connecting rod (230) is hingedly installed on the fixed seat (20), the first connecting rod (230) penetrates through the guiding seat (21), the shell-opening pull head (231) is rotatably installed at the end of the first connecting rod (230), a connecting piece (232) is installed on the shell-opening pull head (231), a shell-opening pull hook (233) is provided at the end of the connecting piece (232), the shell-opening pull hook (233) is located above the fruit-fixing cup (25), a first torsion spring (237) is installed at the connection between the shell-opening pull head (231) and the first connecting rod (230), one end of the first torsion spring (237) is installed on the first connecting rod (230), the other end of the first torsion spring (237) is installed on the shell-opening pull head (231), and the pull head shaft rod (234) is installed on one side of the shell-opening pull head (231).

3. The longan shelling device according to claim 2, wherein A separation groove (235) is provided at the end of the shell-opening pull head (231) so that there is a pull rod on both sides of the separation groove (235), and a shell-opening pull hook (233) is provided at the end of each pull rod.

4. The longan shelling device according to claim 2, wherein A first through hole (210) is provided on the guiding seat (21), semi-circular convex blocks (211) are provided on both opposite sides of the first through hole (210), and a first gap (212) matching the first connecting rod (230) is provided between the two semi-circular convex blocks (211), and the first connecting rod (230) is inserted into the first gap (212).

5. The longan shelling device according to claim 1, characterized in that, The clamping swing hand (24) includes a second connecting rod (240) and a first steel sheet (241); the second connecting rod (240) is hingedly installed on the fixed seat (20), the second connecting rod (240) penetrates through the guiding seat (21), the first steel sheet (241) is installed at the end of the second connecting rod (240), the first steel sheet (241) extends to the outside of the fruit-fixing cup (25), a saw tooth strip (242) is fixedly provided at the end of the first steel sheet (241), and a notch (250) is provided at the position of the fruit-fixing cup (25) corresponding to the saw tooth strip (242).

6. The longan shelling device according to claim 5, wherein, A through hole two (213) is formed in the guiding seat (21). Semi-circular bumps two (214) are arranged on both opposite sides of the through hole two (213). A clearance two (215) matching the connecting rod two (240) is provided between the two semi-circular bumps two (214), and the connecting rod two (240) is inserted into the clearance two (215).

7. The longan shelling device according to claim 1, characterized in that, The elastic mechanism includes a plug rod (251), a first spring (252) and a positioning sleeve (253). One end of the plug rod (251) is fixedly connected to the fixed fruit cup (25). The other end of the plug rod (251) is movably inserted into the top end of the central guide post (22). The positioning sleeve (253) is fixed to the top of the central guide post (22). The first spring (252) is arranged above the central guide post (22), and the first spring (252) is sleeved on the plug rod (251).

8. The longan shelling device according to claim 7, wherein A plurality of uniformly arranged stop grooves (257) are formed in the side wall of the plug rod (251). A cut groove (254) is formed in the positioning sleeve (253). A V-shaped plug-in (255) is rotatably installed in the cut groove (254). The V-shaped plug-in (255) is provided with an insertion end matching the stop groove (257). A snap ring (256) is installed on the side of the V-shaped plug-in (255) away from the central guide post (22). A second steel sheet (236) is installed on one of the shell-opening swing hands (23), and the end of the second steel sheet (236) is inserted into the snap ring (256).

9. The longan shelling device according to claim 1, wherein A tension spring (29) is provided between the guiding seat (21) and the fixed seat (20).

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