Prune kernel removing tool
By designing a plum pitting tool with clamping components and a sloping plate structure, the problems of incomplete pit removal and pulp damage caused by plum shifting during the pitting process were solved, achieving stability and cleanliness in plum pitting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LINAN LIANGZEBOPIN FOOD CO LTD
- Filing Date
- 2025-12-24
- Publication Date
- 2026-04-21
AI Technical Summary
During the pitting process of plums, the plums may shift or shake in the trough, resulting in incomplete pit removal and damage to the flesh. Existing equipment lacks precision and efficiency.
A plum pitting tool was designed, including a clamping assembly and an inclined plate structure. The clamping assembly fixes the plum to ensure its stability, and the inclined plate guides the pit to a collection box. The pitting operation is carried out in conjunction with a lifting hydraulic system.
This method ensures that the plums do not move during the pitting process, reduces damage to the flesh, improves the accuracy of pit removal and the cleanliness of the operating area, and reduces the difficulty of cleaning.
Smart Images

Figure CN224140088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plum pitting technology, specifically a plum pitting tool. Background Technology
[0002] Prunes are dried plums that are commonly used in snacks, baked goods, preserves, seasonings, and medicinal cuisine. Prunes contain large pits, and semi-automatic or fully automatic equipment separates the plum flesh from the pits through mechanical impact or compression.
[0003] However, in actual use, the trough is a loading container used to hold plums. During the pitting process, plums are put into the trough, and a conveying device transports the plums from the trough to the working position of the pitting device. The hydraulic system transmits pressure to the extrusion rod through a hydraulic pump and pipes. The operator can adjust the working pressure of the hydraulic system through the control panel. The hydraulic device has a high pressure output, generating sufficient extrusion force on the plums to drive the extrusion rod to move back and forth. The extrusion rod can accurately enter the fruit part of the plum. The extrusion rod is usually a hemispherical or conical component that squeezes inside the plum, pushing the plum pit out of the flesh.
[0004] Because the plums are placed in the trough container, the pits inside the plums are squeezed out by the extrusion rod of the hydraulic system. The plums come in different sizes and shapes. However, the plums may shift or shake inside the trough container, which may cause some fruits to not be accurately aligned, thus affecting the pitting effect. Some plum pits are not completely removed, and the flesh is severely damaged during the pitting process. Utility Model Content
[0005] The purpose of this invention is to provide a tool for removing pits from prunes, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a plum pitting tool, comprising a workbench and a clamping assembly, the clamping assembly comprising a plum trough, the plum trough having a plurality of placement holes inside, a fixing block fixedly installed at the upper end of the placement holes, a fixing clamping plate installed on the fixing block, a movable block provided at the upper end of the placement holes, a sliding clamping plate fixedly installed on the movable block, a movable groove provided inside the plum trough, a movable block slidably connected inside the movable groove, a threaded rod rotatably connected inside the movable block, and a micro motor installed at one end of the threaded rod.
[0007] As a further preferred embodiment of this technical solution, sliding guide plates are fixedly installed on both sides of the lower end of the plum feeding trough, and sliding grooves are formed inside the sliding guide plates.
[0008] As a further preferred embodiment of this technical solution, a movable rod is slidably connected inside the sliding groove, the movable rod is fixedly installed on both sides of the base plate, and a handle is fixedly installed at one end of the base plate.
[0009] As a further preferred embodiment of this technical solution, the upper end of the workbench is connected to a sloping plate by screws, and a collection box is provided at one end of the sloping plate and the workbench.
[0010] As a further preferred embodiment of this technical solution, a support frame is installed at the upper end of the workbench, and a lifting hydraulic cylinder is connected and fixed at the upper end of the support frame by screws. A lifting guide column is installed at the lower end of the lifting hydraulic cylinder, and a lower pressure plate is installed at the lower end of the lifting guide column. An extrusion rod is fixedly installed at the lower end of the lower pressure plate, and the lower end of the extrusion rod is correspondingly above the placement hole.
[0011] As a further preferred embodiment of this technical solution, a conveying mechanism is installed at the upper end of the workbench. The conveying mechanism includes a movable guide block, and the upper end of the movable guide block is connected and fixed to the plum trough by screws.
[0012] This utility model provides a tool for removing pits from plums, which has the following beneficial effects:
[0013] (1) By using the sliding clamping plate and the fixed clamping plate, the plum is tightly clamped between the two, thereby ensuring that the plum will not move or slide out of the placement hole during the pitting process. This helps to maintain the stability of the plum and facilitates subsequent processing operations. It can ensure that the plum will not be damaged during processing and reduce manual intervention.
[0014] (2) By pushing the bottom plate and guiding the pit of the plum onto the inclined plate, this utility model can ensure that the pit is quickly and accurately separated from the plum pulp and falls into the collection box below. The appropriate angle between the inclined plate and the workbench allows the pit to slide down smoothly. The structure of the workbench and the inclined plate keeps the entire operating area clean and tidy, reducing the difficulty of cleaning pit and pulp residue. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0016] Figure 2 This is a schematic diagram of the inclined groove plate and collection box structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the plum feeding trough and placement hole structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the sliding clamping plate and the fixed clamping plate of this utility model;
[0020] Figure 6 This is a schematic diagram of the base plate and moving rod structure of this utility model;
[0021] In the diagram: 100, workbench; 101, support frame; 102, lifting hydraulic cylinder; 103, lifting guide column; 104, lower pressure plate; 105, extrusion rod; 106, inclined groove plate; 107, collection box; 108, sliding guide plate; 109, moving guide block; 110, base plate; 112, sliding groove; 113, handle; 115, moving rod; 200, clamping assembly; 201, fixed clamping plate; 202, sliding clamping plate; 203, plum material trough; 204, placement hole; 205, moving groove; 206, fixed block; 207, moving block; 208, threaded rod; 209, micro motor; 300, conveying mechanism. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] This utility model provides a technical solution: such as Figure 1 , Figure 3-5 As shown in this embodiment, a plum pitting tool includes a workbench 100 and a clamping assembly 200. The clamping assembly 200 includes a plum trough 203, which has several placement holes 204. A fixing block 206 is fixedly installed on the upper end of each placement hole 204, and a fixing clamping plate 201 is installed on the fixing block 206. A movable block 207 is provided on the upper end of each placement hole 204, and a sliding clamping plate 202 is fixedly installed on the movable block 207. A movable groove 205 is provided inside the plum trough 203, and the movable block 207 is slidably connected inside the movable groove 205. The movable block 207 is rotatably connected inside the movable groove 205. A threaded rod 208 is connected, and a micro motor 209 is installed at one end of the threaded rod 208. In actual use, the operator first places the plums into the placement holes 204 of the plum trough 203. Each placement hole 204 is used to place one plum. The micro motor 209 is started, and the rotation of the threaded rod 208 drives the moving block 207 to slide along the moving groove 205. At this time, the threaded rod 208 will drive the sliding clamping plate 202 to move. The sliding clamping plate 202 and the fixed clamping plate 201 will further press the plums together. The fixed clamping plate 201 and the sliding clamping plate 202 ensure that the plums will not slide out of the placement holes 204.
[0024] With the cooperation of the sliding clamping plate 202 and the fixed clamping plate 201, the plums are tightly clamped between the two, thereby ensuring that the plums will not move or slide out of the placement hole 204 during the pitting process. This helps to maintain the stability of the plums, facilitates subsequent processing operations, ensures that the plums will not be damaged during processing, and reduces manual intervention.
[0025] like Figure 2-4 , Figure 6 As shown, sliding guide plates 108 are fixedly installed on both sides of the lower end of the plum feeding trough 203. A sliding groove 112 is formed inside the sliding guide plate 108. A moving rod 115 is slidably connected inside the sliding groove 112. The moving rod 115 is fixedly installed on both sides of the base plate 110. A handle 113 is fixedly installed at one end of the base plate 110. An inclined chute plate 106 is screwed to the upper end of the workbench 100. A collection box 107 is provided at one end of the inclined chute plate 106 and the workbench 100. In actual use, when the prunes are pitted, the sliding groove 112 on the sliding guide plate 108 is operated by the handle 113, so that the moving rod 115 slides along the sliding groove 112, further moving the base plate 110 out. Then, the prune pits fall on the inclined plate 106. The inclined plate 106 and the other end of the worktable 100 form a suitable working angle, and the pits are guided to the collection box 107. The collection box 107 is used to collect the pitted prune pits.
[0026] By pushing the base plate 110 and guiding the plum pit onto the inclined plate 106, the pit can be ensured to quickly and accurately detach from the plum flesh and fall into the collection box 107 below. The appropriate angle between the inclined plate 106 and the workbench 100 allows the pit to slide smoothly. The structure of the workbench 100 and the inclined plate 106 keeps the entire operating area clean and tidy, reducing the difficulty of cleaning up pit and flesh residue.
[0027] like Figure 1-2As shown, a support frame 101 is installed on the upper end of the workbench 100. The upper end of the support frame 101 is connected and fixed to the lifting hydraulic cylinder 102 by screws. A lifting guide column 103 is installed on the lower end of the lifting hydraulic cylinder 102. A lower pressure plate 104 is installed on the lower end of the lifting guide column 103. An extrusion rod 105 is fixedly installed on the lower end of the lower pressure plate 104. The lower end of the extrusion rod 105 is correspondingly above the placement hole 204. A conveying mechanism 300 is installed on the upper end of the workbench 100. The conveying mechanism 300 includes a moving guide block 109. The upper end of the moving guide block 109 is connected and fixed to the plum material trough 203 by screws. In actual use, the conveying mechanism 300 is responsible for conveying the plums, including the moving guide block 109. The upper end of the movable guide block 109 is connected and fixed to the plum trough 203. The plums are fed into the pitting processing area of the workbench 100 through the trough. When the lifting hydraulic cylinder 102 is started, the hydraulic cylinder will push the lifting guide column 103 to move downward, thereby driving the lower pressure plate 104 to press down. The extrusion rod 105 will apply a certain pressure to the plums. The relative movement of the lower pressure plate 104 and the extrusion rod 105 will generate an extrusion effect, thereby removing the pits from the plums.
[0028] This utility model provides a plum pitting tool, the specific working principle of which is as follows: First, the operator places the plums into the placement holes 204 of the plum trough 203. Each placement hole 204 is used to place one plum. The micro motor 209 is started, and the rotation of the threaded rod 208 drives the moving block 207 to slide along the moving groove 205. At this time, the threaded rod 208 will drive the sliding clamping plate 202 to move. The sliding clamping plate 202 and the fixed clamping plate 201 will further press the plums together. The fixed clamping plate 201 and the sliding clamping plate 202 ensure that the plums will not slide out of the placement holes 204. The conveying mechanism 300 is responsible for conveying the plums and includes the moving guide block 109. The upper end of the movable guide block 109 is connected and fixed to the plum trough 203. The plums are fed into the pitting processing area of the workbench 100 through the trough. When the lifting hydraulic cylinder 102 is started, the hydraulic cylinder will push the lifting guide column 103 downward, thereby driving the lower pressure plate 104 to press down. The extrusion rod 105 will apply a certain pressure to the plums. The relative movement of the lower pressure plate 104 and the extrusion rod 105 will generate an extrusion effect, thereby removing the pits from the plums. After the pitting operation is completed, the sliding groove 112 on the sliding guide plate 108 is operated by the handle 113, so that the moving rod 115 slides along the sliding groove 112, further moving the bottom plate 110 out. Then, the plum pits fall onto the inclined chute plate 106. The inclined chute plate 106 and the other end of the workbench 100 form a suitable working angle. The pits will be guided to the collection box 107, which is used to collect the pitted plum pits.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tool for pitting prunes, comprising a worktable (100) and a clamping assembly (200), characterized in that: The clamping assembly (200) includes a plum trough (203), which has several placement holes (204) inside. A fixing block (206) is fixedly installed at the upper end of each placement hole (204), and a fixing clamping plate (201) is installed on the fixing block (206). A moving block (207) is provided at the upper end of each placement hole (204), and a sliding clamping plate (202) is fixedly installed on the moving block (207). A moving groove (205) is provided inside the plum trough (203), and the moving block (207) is slidably connected inside the moving groove (205). A threaded rod (208) is rotatably connected inside the moving block (207), and a micro motor (209) is installed at one end of the threaded rod (208).
2. A tool for removing the stone from a prune according to claim 1, characterized in that: The lower end of the plum trough (203) is fixedly installed with sliding guide plates (108) on both sides, and the sliding guide plates (108) have sliding grooves (112) inside.
3. A tool for removing the stone from a prune according to claim 2, characterized in that: The sliding groove (112) is slidably connected to a moving rod (115), which is fixedly installed on both sides of the base plate (110). A handle (113) is fixedly installed on one end of the base plate (110).
4. A tool for removing the stone from a prune according to claim 1, characterized in that: The upper end of the workbench (100) is connected to a sloping plate (106) by screws, and a collection box (107) is provided at one end of the sloping plate (106) and the workbench (100).
5. A tool for removing the pit of a prune according to claim 1, wherein: The upper end of the workbench (100) is equipped with a support frame (101). The upper end of the support frame (101) is connected and fixed to the lifting hydraulic cylinder (102) by screws. The lower end of the lifting hydraulic cylinder (102) is equipped with a lifting guide column (103). The lower end of the lifting guide column (103) is equipped with a lower pressure plate (104). The lower end of the lower pressure plate (104) is fixedly equipped with a pressing rod (105). The lower end of the pressing rod (105) is correspondingly above the placement hole (204).
6. A tool for removing the pit of a prune according to claim 1, wherein: The upper end of the workbench (100) is equipped with a conveying mechanism (300), which includes a moving guide block (109). The upper end of the moving guide block (109) is connected and fixed to the plum trough (203) by screws.