Precise processing device for removing pits of prunes

By designing a precision machining device for pitting plums, an electric actuator is used to drive the pitting knife and the pitting strip to remove the pits. Combined with detachable blades and stepping conveyor, the device solves the problems of blade jamming and applicability of traditional plum pitting devices, thereby improving production efficiency and pit removal effect.

CN223489112UActive Publication Date: 2025-10-31XINJIANG YIDISHUI FRUIT DEV CO LTD
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Patent Information

Application Number
CN202422768146.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-10-31
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

Traditional methods for removing pits from plums can cause problems such as the pit getting stuck in the blade, leading to machine downtime and maintenance. In addition, the size difference between different batches of plums results in a narrow range of blade applicability, affecting production efficiency and product quality.

Method used

A precision processing device for pitting plums was designed, comprising a pitting mechanism and a conveying mechanism. The pitting knife is driven by an electric push rod to remove the pits, and a pit scraper is provided to remove stuck pits. Different diameter pitting knives can be replaced by a detachable connecting rod, and the plums are stably conveyed by a stepping conveyor belt.

Benefits of technology

This technology ensures the stability and applicability of the plum pitting process, avoids the problem of blade jamming, improves production efficiency and adaptability to different batches of plums, and ensures effective separation of the pit from the pulp.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of prune pit removal, in particular to a precision machining device for prune pit removal, which comprises a base, a pit punching mechanism is fixedly mounted at the edge of the upper surface of the base, a conveying mechanism is fixedly mounted on the upper surface of the base, and the pit punching mechanism comprises a connecting plate. When the prune kernel removing device is used, the second motor is started, the second rotating shaft is driven to rotate, the second cam is driven to rotate, the conveying belt is driven to convey prunes in a stepping mode, the first motor is started to drive the electric push rod to move up and down in a reciprocating mode, when the prunes are conveyed to the position below the kernel removing cutter, the electric push rod drives the kernel removing cutter to remove kernels downwards, then the kernel removing cutter ascends, and the conveying belt continues to step. In the rising process of the kernel punching cutter, the kernel scraping strip scrapes off kernels in the kernel punching cutter, the kernels fall into the kernel receiving box through the kernel leaking groove, the situation that the kernels clamp the kernel punching cutter to affect next kernel removal is avoided, screws are unscrewed, the connecting rod and the electric push rod are separated, kernel punching cutter sets with different calibers can be replaced, the applicability is wide, the cutter is prevented from being clamped, the cutter sets can be replaced, and the effect of precise kernel removal machining is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of plum pitting technology, specifically a precision machining device for plum pitting. Background Technology

[0002] In food processing, pitting is a crucial step. For making dried prunes, pitting makes drying easier, resulting in more uniform shapes and a more consistent texture. When making prune jam, the pitted flesh can be cooked directly, preventing the pit from affecting the jam's texture and preventing fragments from breaking and mixing into the jam. When making prune juice, pitting improves juicing efficiency and produces purer juice.

[0003] Traditional plum pitting is done manually using special blades, while automated plum pitting can result in the fruit pit getting stuck in the blades. In such cases, the machine often needs to be stopped to replace the blades, which is complicated and delays production. In addition, different batches of plums vary in size, and most pitting devices use a fixed blade model, resulting in a narrow range of applications. Utility Model Content

[0004] The purpose of this invention is to provide a precision machining device for pitting prunes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A precision machining device for pitting plums includes a base, a pitting mechanism fixedly installed at the edge of the upper surface of the base, a conveying mechanism fixedly installed on the upper surface of the base, the pitting mechanism including a connecting plate, a plurality of pitting blades fixedly installed on the lower surface of the connecting plate, a connecting rod fixedly installed on the upper surface of the connecting plate, an electric push rod threadedly installed at the top of the connecting rod, an output shaft of a motor fixedly installed at the top of the electric push rod, an L-plate sleeved on the outer surface of the electric push rod, a pit scraping strip fixedly installed on the side of the L-plate near the pitting blade, and a limit plate fixedly installed on the side of the L-plate near the bottom end of the pitting blade.

[0007] As described above, the conveying mechanism includes a cam, a conveyor belt slidably mounted on the outer surface of the cam, a plurality of placement boxes fixedly mounted on the upper surface of the conveyor belt, an arc plate slidably mounted on the inner wall of the conveyor belt near the L-plate, an arc plate slidably mounted on the inner wall of the conveyor belt away from the arc plate, a rotating shaft 1 fixedly mounted inside the cam, and vertical plates 1 rotatably mounted at both ends of the outer surface of the rotating shaft 1, an L-plate fixedly mounted on the side of the arc plate 1 away from the cam, and a vertical plate 1 fixedly mounted on the side of the arc plate 2 away from the cam.

[0008] As described above, the conveying mechanism includes a second cam, a second rotating shaft fixedly installed inside the second cam, an output shaft of a second motor fixedly installed at one end of the second rotating shaft, a second vertical plate rotatably installed at the other end of the second rotating shaft, an arc plate three slidably installed on the inner wall of the conveyor belt near the second motor, an arc plate four slidably installed on the inner wall of the conveyor belt near the second vertical plate, a support column fixedly installed on the side of the arc plate three away from the cam, a second vertical plate two fixedly installed on the side of the arc plate four away from the cam, and a second motor fixedly installed on the top of the support column.

[0009] As described above: the punching knife has a groove, and a scraping strip is slidably installed on the inner wall of the groove.

[0010] As described above: the bottom end of the electric actuator is threaded with a screw, and the outer surface of the screw is threaded with a connecting rod.

[0011] As described above: the conveyor belt is provided with several pit-leaking slots, and the placement box is provided with several fruit-holding slots.

[0012] As described above: a fruit-receiving box is slidably mounted on the upper surface of the base near the upright plate, and a seed-receiving box is slidably mounted on the upper surface of the base near the fruit-receiving box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, starting motor two drives rotating shaft two to rotate, which in turn drives cam two to rotate, which in turn drives the conveyor belt to step-by-step convey the plums. Starting motor one drives the electric push rod to move up and down back and forth. When the plums are conveyed to the area below the pitting knife, the electric push rod drives the pitting knife downward to remove the pits. Then the pitting knife rises, and the conveyor belt continues to step. During the rising process of the pitting knife, the pit scraper scrapes off the pits inside the pitting knife. The pits fall into the pit collection box through the pit leakage groove, preventing the pits from getting stuck in the pitting knife and affecting the next pitting. Unscrewing the screws separates the connecting rod and the electric push rod, and different diameter pitting knife sets can be replaced. It has wide applicability, prevents knife jamming, and the interchangeable knife sets achieve the effect of precision pitting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the punching mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the conveying mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram showing the disassembly of the conveyor and arc plate of this utility model.

[0019] In the diagram: 1. Base; 2. Pitting mechanism; 3. Conveying mechanism; 4. Connecting plate; 5. Pitting knife; 6. Connecting rod; 7. Electric push rod; 8. Motor 1; 9. L-plate; 10. Limiting plate; 11. Cam 1; 12. Conveyor belt; 13. Placement box; 14. Arc plate 1; 15. Arc plate 2; 16. Rotating shaft 1; 17. Vertical plate 1; 18. Cam 2; 19. Rotating shaft 2; 20. Motor 2; 21. Vertical plate 2; 22. Arc plate 3; 23. Arc plate 4; 24. Support column; 25. Slide groove; 26. Pitting strip; 27. Screw; 28. Pitting groove; 29. ​​Fruit placement groove; 30. Fruit receiving box; 31. Pitting box. Detailed Implementation

[0020] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0021] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0022] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0023] Please see Figures 1-5 In this embodiment of the present invention, a precision machining device for pitting plums includes a base 1, a pitting mechanism 2 fixedly installed at the edge of the upper surface of the base 1, a conveying mechanism 3 fixedly installed on the upper surface of the base 1, the pitting mechanism 2 includes a connecting plate 4, a plurality of pitting blades 5 fixedly installed on the lower surface of the connecting plate 4, a connecting rod 6 fixedly installed on the upper surface of the connecting plate 4, an electric push rod 7 threadedly installed at the top of the connecting rod 6, an output shaft of a motor 8 fixedly installed at the top of the electric push rod 7, an L-plate 9 sleeved on the outer surface of the electric push rod 7, a pit scraping strip 26 fixedly installed on the side of the L-plate 9 near the pitting blades 5, and a limit plate 10 fixedly installed on the side of the L-plate 9 near the bottom of the pitting blades 5.

[0024] When the pitting mechanism 2 is in use, the motor 8 is started, which drives the electric push rod 7 to move up and down. When the plum is conveyed to the pitting knife 5, the electric push rod 7 drives the pitting knife 5 downward to remove the pit. Then the pitting knife 5 rises, and the conveyor belt 12 continues to move forward. During the rising process of the pitting knife 5, the pit scraper 26 scrapes off the pit inside the pitting knife 5. The limit plate 10 prevents the plum from moving upward with the pitting knife 5. The pit falls into the pit receiving box 31 through the pit leakage groove 28 to avoid the pit getting stuck in the pitting knife 5 and affecting the next pitting. The screw 27 is unscrewed to separate the connecting rod 6 and the electric push rod 7. Different diameter pitting knife 5 sets can be replaced, which is widely applicable. By preventing the knife from getting stuck and the knife set can be replaced, the precise pitting effect can be achieved.

[0025] The conveying mechanism 3 includes a cam 11, a conveyor belt 12 is slidably mounted on the outer surface of the cam 11, a plurality of placement boxes 13 are fixedly mounted on the upper surface of the conveyor belt 12, an arc plate 14 is slidably mounted on the inner wall of the conveyor belt 12 near the L plate 9, an arc plate 2 15 is slidably mounted on the inner wall of the conveyor belt 12 away from the arc plate 14, a rotating shaft 16 is fixedly mounted inside the cam 11, and vertical plates 17 are rotatably mounted on both ends of the outer surface of the rotating shaft 16, an L plate 9 is fixedly mounted on the side of the arc plate 14 away from the cam 11, and a vertical plate 17 is fixedly mounted on the side of the arc plate 2 15 away from the cam 11.

[0026] When the conveyor mechanism 3 is in use, the motor 20 is started, which drives the shaft 19 to rotate, which in turn drives the cam 18 to rotate, thereby driving the cam 11 to rotate. The cam 11 and the cam 18 work together to make the conveyor belt 12 move steadily forward, intermittently and smoothly conveying the plums to be processed. At the same time, the arc plate 14 and the arc plate 25 fit the shape of the conveyor belt 12, stabilizing the shape of the conveyor belt 12.

[0027] The conveying mechanism 3 includes a second cam 18, a second rotating shaft 19 fixedly installed inside the second cam 18, an output shaft of a second motor 20 fixedly installed at one end of the second rotating shaft 19, and a second vertical plate 21 rotatably installed at the other end of the second rotating shaft 19. An arc plate 22 is slidably installed on the inner wall of the conveyor belt 12 near the second motor 20, and an arc plate 23 is slidably installed on the inner wall of the conveyor belt 12 near the second vertical plate 21. A support column 24 is fixedly installed on the side of the arc plate 22 away from the cam, and the second vertical plate 21 is fixedly installed on the side of the arc plate 23 away from the cam. The second motor 20 is fixedly installed on the top of the support column 24.

[0028] When in use, the motor 20 is started, which drives the shaft 19 to rotate, which in turn drives the cam 18 to rotate, and drives the conveyor belt 12 to step-by-step convey the plums. At the same time, the arc plate 22 and the arc plate 23 fit the shape of the conveyor belt 12 to stabilize the shape of the conveyor belt 12. The special shape of the cam 18 allows the conveyor belt 12 to convey intermittently, ensuring that the conveyor belt 12 moves steadily forward.

[0029] The core-scraping knife 5 has a groove 25, and a core-scraping strip 26 is slidably installed on the inner wall of the groove 25.

[0030] With the setting of the pit scraping strip 26, when in use, the electric push rod 7 drives the pit punching knife 5 downward to remove the fruit pit. Then the pit punching knife 5 rises, and the conveyor belt 12 continues to move forward. During the rising process of the pit punching knife 5, the pit scraping strip 26 scrapes off the fruit pit inside the pit punching knife 5. The fruit pit falls into the pit receiving box 31 through the pit leakage groove 28, which avoids the fruit pit getting stuck in the pit punching knife 5 and affecting the next pit removal. Traditional devices often require stopping production and disassembling the knife for maintenance when the knife gets stuck, which is complicated and delays production.

[0031] The bottom end of the electric actuator 7 is threaded with a screw 27, and the outer surface of the screw 27 is threaded with a connecting rod 6.

[0032] By using the thread 27, when in use, unscrew the screw 27 to separate the connecting rod 6 and the electric push rod 7, and you can replace 5 sets of punching knives of different diameters. Different batches of plums have different overall sizes, and using only one type of knife cannot be used for all plums. Therefore, disassembling and replacing the knives has a higher utilization rate and stronger adaptability.

[0033] The conveyor belt 12 has several pit-leaking slots 28, and the placement box 13 has several fruit-holding slots 29.

[0034] When the plum is conveyed to the pitting knife 5 via the pitting groove 28, the electric push rod 7 drives the pitting knife 5 downward to remove the pit. Then the pitting knife 5 rises and the conveyor belt 12 continues to move forward. During the rising process of the pitting knife 5, the pit scraping strip 26 scrapes off the pit inside the pitting knife 5. The pit falls into the pit receiving box 31 through the pitting groove 28.

[0035] A fruit receiving box 30 is slidably installed on the upper surface of the base 1 near the upright plate 17, and a pit receiving box 31 is slidably installed on the upper surface of the base 1 near the fruit receiving box 30.

[0036] With the set-up pit receiving box 31 and fruit receiving box 30, during use, the processed plums gradually fall into the fruit receiving box 30 as the conveyor belt 12 moves forward, completing the classification and collection of the processed fruit and pits.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision machining apparatus for pitting prunes, characterized in that: The device includes a base (1), a punching mechanism (2) is fixedly installed at the edge of the upper surface of the base (1), a conveying mechanism (3) is fixedly installed on the upper surface of the base (1), the punching mechanism (2) includes a connecting plate (4), a plurality of punching knives (5) are fixedly installed on the lower surface of the connecting plate (4), a connecting rod (6) is fixedly installed on the upper surface of the connecting plate (4), an electric push rod (7) is threaded on the top end of the connecting rod (6), an output shaft of a motor (8) is fixedly installed on the top end of the electric push rod (7), an L plate (9) is sleeved on the outer surface of the electric push rod (7), a scraping strip (26) is fixedly installed on the side of the L plate (9) near the punching knife (5), and a limit plate (10) is fixedly installed on the side of the L plate (9) near the bottom end of the punching knife (5).

2. The precision machining apparatus for pitting prunes according to claim 1, characterized in that: The conveying mechanism (3) includes a cam (11), a conveyor belt (12) is slidably mounted on the outer surface of the cam (11), a plurality of placement boxes (13) are fixedly mounted on the upper surface of the conveyor belt (12), an arc plate (14) is slidably mounted on the inner wall of the conveyor belt (12) near the L plate (9), an arc plate (2) (15) is slidably mounted on the inner wall of the conveyor belt (12) away from the arc plate (14), a rotating shaft (16) is fixedly mounted inside the cam (11), and a vertical plate (17) is rotatably mounted on both ends of the outer surface of the rotating shaft (16), an L plate (9) is fixedly mounted on the side of the arc plate (14) away from the cam (11), and a vertical plate (17) is fixedly mounted on the side of the arc plate (2) away from the cam (11).

3. The precision machining apparatus for pitting prunes according to claim 2, characterized in that: The conveying mechanism (3) includes a second cam (18), a second rotating shaft (19) is fixedly installed inside the second cam (18), an output shaft of a second motor (20) is fixedly installed at one end of the second rotating shaft (19), and a second vertical plate (21) is rotatably installed at the other end of the second rotating shaft (19). An arc plate (22) is slidably installed on the inner wall of the conveyor belt (12) near the second motor (20), and an arc plate (23) is slidably installed on the inner wall of the conveyor belt (12) near the second vertical plate (21). A support column (24) is fixedly installed on the side of the arc plate (22) away from the cam, and a second vertical plate (21) is fixedly installed on the side of the arc plate (23) away from the cam. A second motor (20) is fixedly installed on the top of the support column (24).

4. The precision machining apparatus for pitting prunes according to claim 1, characterized in that: The punching knife (5) has a groove (25) and a scraping strip (26) is slidably installed on the inner wall of the groove (25).

5. The precision machining apparatus for pitting prunes according to claim 1, characterized in that: The bottom end of the electric actuator (7) is threaded with a screw (27), and the outer surface of the screw (27) is threaded with a connecting rod (6).

6. The precision machining apparatus for pitting prunes according to claim 2, characterized in that: The conveyor belt (12) is provided with several pit-leaking grooves (28), and the placement box (13) is provided with several fruit-laying grooves (29).

7. The precision machining apparatus for pitting prunes according to claim 1, characterized in that: A fruit-receiving box (30) is slidably installed on the upper surface of the base (1) near the upright plate (17), and a kernel-receiving box (31) is slidably installed on the upper surface of the base (1) near the fruit-receiving box (30).