Seed removing machine for sugarcoated haws and haws on stick

By integrating automatic feeding, posture adjustment, and pitting processing, the candied hawthorn pitting machine solves the problem of low efficiency in traditional manual pitting, realizes fully automated and efficient production of hawthorn pitting, and improves product quality and production efficiency.

CN121489150APending Publication Date: 2026-02-10WUHE COUNTY MINGHOU HOMETOWN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511952760.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-02-10

AI Technical Summary

Technical Problem

The traditional process of pitting hawthorns, especially in the production of candied hawthorns, relies on manual operation, which leads to low efficiency, safety and hygiene issues, and makes it impossible to achieve fully automated processing.

Method used

A pitting machine for candied hawthorn berries was designed, integrating automatic feeding, posture adjustment and pitting processing. Through the cooperation of closed-loop conveyor and loading mold, the multi-dimensional posture adjustment of hawthorn berries is realized, and the pitting is accurately removed by the combination of lifting seat and punching mold. Combined with the automatic feeding mechanism, the whole process is fully automated.

Benefits of technology

The process of pitting hawthorn has been fully automated, improving processing efficiency, ensuring the product quality and consistency of pitted hawthorn, reducing the intensity of manual operation, and making it suitable for large-scale production.

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Abstract

The invention relates to the technical field of hawthorn processing equipment, and particularly discloses a sugar-coated haw pitting machine which comprises a base and a conveying seat, two closed-loop conveying parts which are parallel in the front-back direction and driven by the same power source are arranged in the conveying seat, and a plurality of limiting sliding rails perpendicular to the conveying direction are arranged on the two closed-loop conveying parts at equal intervals; a loading mold strip is slidably arranged on each set of two limiting sliding rails aligned front and back, a closed-loop block parallel to the closed-loop conveying piece is arranged in the conveying base, each loading mold strip comprises a long strip body, a row of conical holes are formed in the upper surface of each long strip body at intervals, and the end of each long strip body is connected with a guide wheel extending to the corresponding closed-loop block through a connecting rod. A closed-loop guide groove acting with all the guide wheels is formed in the closed-loop block; according to the invention, the problem that manual intervention is needed for straightening in traditional equipment is effectively solved, full-automatic posture alignment is realized, and the accuracy and consistency of coring processing are remarkably improved.
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Description

Technical Field

[0001] This invention relates to the field of hawthorn processing equipment technology, and specifically discloses a hawthorn pitting machine for candied hawthorn. Background Technology

[0002] Candied hawthorn berries (tanghulu) are a popular traditional snack, with pitted hawthorn berries as their core ingredient. Currently, the production of candied hawthorn berries, especially the pitting process, still heavily relies on manual labor. However, traditional manual pitting is not only inefficient but also poses safety hazards and food hygiene problems.

[0003] Utility model patent application number 202321249433.1 discloses a fully automatic hawthorn pitting machine, including a support table and a gantry frame. The gantry frame is welded to both sides of the top surface of the support table. A placement plate is integrally provided on the top surface of the support table, and a placement groove is formed on the surface of the placement plate. A stepper motor is fixedly installed at the top right side of the gantry frame. The pitting machine disclosed in this patent is equipped with a telescopic motor and a movable clamping plate. The telescopic motor operates to drive the locking plate downward through a telescopic column, which allows the pitting tube to be automatically inserted into the hawthorn in the placement groove for pitting. When the pitting tube is inserted into the hawthorn, the movable clamping plate moves towards the fixed baffle under the clamping force of the hawthorn through a compression spring. When the pitting tube rises, the movable clamping plate automatically separates the pitting tube from the hawthorn under the rebound force of the compression spring, realizing the automatic pitting of hawthorn. However, the existing fully automatic hawthorn pitting machine cannot automatically adjust and straighten the hawthorns before the pitting process, which means that the feeding process still requires manual placement of each hawthorn, preventing fully automated processing. Therefore, this application proposes a truly fully automated hawthorn pitting machine for candied hawthorn skewers, which combines automatic feeding, posture adjustment, and pitting, greatly improving the efficiency of hawthorn pitting and the quality of the pitted hawthorn product. Summary of the Invention

[0004] The purpose of this invention is to provide a hawthorn pitting machine for candied hawthorn, so as to realize automatic feeding, posture adjustment and pitting in the process of hawthorn pitting, thereby greatly improving the efficiency of hawthorn pitting while ensuring the effect of hawthorn pitting, and realizing fully automated processing.

[0005] This invention is achieved through the following technical solution: A candied hawthorn pitting machine includes a base and a conveyor seat disposed on the base. The conveyor seat is provided with two closed-loop conveying components that are parallel to each other and driven by the same power source. Multiple limiting slide rails perpendicular to the conveying direction are evenly spaced on the two closed-loop conveying components. Loading templates are slidably disposed on the two limiting slide rails that are aligned front to back in each set. The conveyor seat is provided with a closed-loop block that is parallel to the closed-loop conveying components. The loading module includes a long strip with a row of tapered holes spaced apart on its upper surface. The end of the long strip is connected to a guide wheel extending to the closed-loop block via a connecting rod. The closed-loop block is provided with a closed-loop guide groove that interacts with all the guide wheels. The closed-loop guide groove is composed of a straight section and a wave section. A horizontal plate is fixed in the conveyor seat. Brushes that act on the hawthorns extending from the tapered holes are provided on the horizontal plate at the position corresponding to the wave section. A pitting mechanism is provided on the conveyor seat located downstream of the wave section. A side-exiting pit conveyor is provided in the conveyor seat directly below the pitting mechanism.

[0006] As a further feature of the above scheme, sliding blocks that interact with the limiting slide rail are provided at both the front and rear ends of the elongated body, and a row of tapered holes are opened on the elongated body between the two sliding blocks.

[0007] As a further feature of the above scheme, the outer diameter of the conical hole is larger than the average diameter of the hawthorn, and the inner diameter of the conical hole is set between 1 / 3 and 1 / 2 of the average diameter of the hawthorn.

[0008] As a further provision of the above scheme, the core removal mechanism includes a gantry frame and a lifting seat. The lifting seat is located in the gantry frame and is driven by a downward pressure cylinder at the top of the lifting seat. A punching strip is connected to the top of the lifting seat by a spring. A row of punching heads corresponding to each conical hole on the loading die strip is connected to the punching strip. A cam pressing assembly acting on the punching strip is provided in the lifting seat.

[0009] As a further provision of the above scheme, the cam pressing assembly includes a bearing housing and a cam motor mounted on the lifting seat, and a pressing cam acting on the punch strip is provided between the bearing housing and the cam motor.

[0010] As a further feature of the above solution, the lower surface of the lifting seat is provided with limiting holes aligned vertically with each punch head, forming a cavity for accommodating and restricting the hawthorn through the limiting holes and the tapered holes.

[0011] As a further provision of the above scheme, an automatic feeding mechanism is also provided at the end of the conveyor seat. The automatic feeding mechanism includes a fixedly provided hopper, and an inclined plate for receiving hawthorns is provided below the hopper. The upper surface of the inclined plate is provided with roller grooves corresponding to each conical hole on the loading mold strip. The inclined plate is provided with a support on its side end, and a first cylinder and a second cylinder are provided at intervals on the upper end of the support. The lower ends of the first cylinder and the second cylinder are respectively connected to a first baffle plate and a second baffle plate for intercepting hawthorns in the raceway groove.

[0012] As a further provision of the above scheme, the closed-loop conveyor is a conveyor belt assembly or a conveyor chain assembly.

[0013] As a further feature of the above scheme, the wave segment is a wave-shaped or reciprocating broken line segment structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes the interaction between the guide wheels on the loading template and the wave-like segments in the closed-loop guide groove to generate a combined lateral and longitudinal motion during transport. This, combined with the multi-dimensional brushing of the hawthorns extending from the conical holes by the bristles on the horizontal plate, causes the hawthorns to roll irregularly within the conical holes and ultimately adjust to a vertical posture. This design effectively solves the problem of requiring manual intervention for alignment in traditional equipment, achieving fully automated posture adjustment and significantly improving the accuracy and consistency of pitting processing.

[0015] This equipment integrates automatic feeding, posture adjustment, pitting, and pit collection. Through the coordinated operation of the closed-loop conveyor and the automatic feeding mechanism, it achieves continuous and efficient conveying and processing of hawthorns, significantly reducing the intensity of manual operation and improving production efficiency. It is suitable for large-scale production needs.

[0016] 3. The pitting mechanism in this invention adopts a combination structure of lifting seat and punch strip, and works with cam pressing component to achieve precise pressing and rebound. Combined with the sealed cavity formed by limiting hole and conical hole, it effectively prevents hawthorn from shifting or breaking during pitting, ensuring the integrity of the fruit pulp and product quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle; Figure 2 This is a schematic diagram of the second-angle three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the closed-loop conveyor, loading module, and closed-loop block in this invention; Figure 4 This is a three-dimensional cross-sectional view of the loading module in this invention; Figure 5 This is a three-dimensional structural diagram of the core removal mechanism in this invention from a first angle; Figure 6 This is a schematic diagram of the second angle of the core removal mechanism in this invention; Figure 7 This is a partial three-dimensional structural diagram of the automatic feeding mechanism in this invention; Figure 8 This is a schematic diagram showing the adjustment of the hawthorn's posture in the loading module. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-8 This application will be described in detail with reference to the embodiments. Example 1

[0021] Example 1 discloses a pitting machine for candied hawthorn berries, see attached drawing. Figures 1-3 Its main components include a base 1, a conveyor seat 2 on the upper surface of the base 2, and two closed-loop conveyor components 3 arranged in parallel front to back inside the conveyor seat 2. The two closed-loop conveyor components 3 are driven by the same power source 4, so that the two closed-loop conveyor components 3 can run and stop synchronously. In specific design, the closed-loop conveyor component 3 can be a conveyor belt assembly or a conveyor chain assembly. The pulleys or sprockets in the conveyor belt assembly or conveyor chain assembly are driven by the same axle and servo motor.

[0022] Multiple limiting slide rails 301, perpendicular to the conveying direction, are fixedly connected at equal intervals on each closed-loop conveyor 3, and the limiting slide rails 301 on the front and rear closed-loop conveyor 3 are aligned one by one. Then, a loading template 5 is slidably arranged between the two aligned limiting slide rails 301 in each group. (See attached diagram) Figure 4 The loading module 5 includes a long strip 501. Sliding blocks 502, adapted to the limiting slide rail 301, are provided at both the front and rear ends of the lower surface of the long strip 501. A row of tapered holes 503 are spaced apart on the long strip 501 between the two sliding blocks 502. The outer diameter of the tapered holes 503 is larger than the average diameter of the hawthorn, and the inner diameter of the tapered holes 503 is between 1 / 3 and 1 / 2 of the average diameter of the hawthorn. A connecting rod 504, perpendicular to the conveying direction, is fixedly connected to the front end of each long strip 501. A guide wheel 505 is rotatably mounted at the end of each connecting rod 504.

[0023] Furthermore, a closed-loop block 6 parallel to the closed-loop conveyor 3 is fixedly installed on the inner front wall of the conveyor seat 2. A closed-loop guide groove 60 is formed on the outer side of the closed-loop block 6, which interacts with the guide wheels 505 in all the loading modules 5. The closed-loop guide groove 60 is composed of a straight section 601 and a wavy section 602 connected together. Of course, the wavy section can also be replaced by a reciprocating broken line section. Then, a horizontal plate 11 located in the two closed-loop conveyors 3 is fixed in the conveyor seat 2. A large number of bristles 111 are provided on the upper surface of the horizontal plate 11 at the position corresponding to the wavy section 602, and when the bristles 111 are in a vertical state, they are in contact with the lower surface of the loading module 5 that it moves through.

[0024] When the guide wheel 505 interacts with the straight section 601 for conveying, the loading module 5 can maintain a fixed state and move stably in a straight line along the conveying direction of the closed-loop conveyor 3; while when the guide wheel 505 interacts with the wave section 602 for conveying, the loading module 5 can not only move along the conveying direction of the closed-loop conveyor 3, but also move back and forth synchronously along the conveying direction perpendicular to the closed-loop conveyor 3, and then interact with the hawthorn in the conical hole 503 through the brush bristles.

[0025] Reference Appendix Figure 5 and attached Figure 6 A core removal mechanism 7 is installed on the conveyor seat 2 located on the right side of the wave section 602. This mechanism includes a gantry frame 701 spanning above the loading module 5. Vertical slide rails 702 are installed on both the front and rear sides of the gantry frame 701, and a lifting seat 703 is installed between the vertical slide rails 702. The lifting seat 703 has grooves at both its front and rear ends that interact with the vertical slide rails 702. A downward pressure cylinder 704 is installed at the top of the gantry frame 701, and the telescopic end of the downward pressure cylinder 704 is connected to the lifting seat 703, allowing the lifting seat 703 to move up and down under the action of the downward pressure cylinder 704.

[0026] A punch strip 706 is connected to the upper surface of the lifting base 703 by a spring 705. A row of columnar punch heads 707 are connected to the punch strip 706, corresponding to each tapered hole 503 on the loading die strip 5, and each punch head 707 passes through a through hole on the lifting base 703. Bearing seats 708 and cam motors 709 are respectively provided at both ends of the middle position of the lifting base 703. Then, a downward cam 710 that can act on the punch strip 706 is provided between the bearing seats 708 and the cam motors 709. In addition, a limiting hole 711 is provided on the lower surface of the lifting seat 703, which is aligned vertically with each punch head 707. The limiting hole 711 is also conical. When the lifting seat 703 descends and fits against the upper surface of the loading die strip 5, the conical hole 503 and the limiting hole 711 can form a cavity for accommodating and restricting the hawthorn, so as to prevent the hawthorn from being pulled out of the conical hole 503 when the punch head 707 removes the pit.

[0027] Reference Appendix Figure 2 and attached Figure 3 A side-exiting pit conveyor 8 is installed in the conveyor seat 2 directly below the pitting mechanism 7, and the pit conveyor 8 is positioned between two closed-loop conveyors 3, with one end extending out of the front side of the conveyor seat 2. Finally, a guide hopper 9 is fixed to the end of the conveyor seat 2, so that when the hawthorn is pitted and conveyed to the end, the hawthorn will fall from the loading template 5, be received by the guide hopper 9, and be directionally discharged and conveyed by the guide hopper 9.

[0028] In the operation of the hawthorn pitting machine for candied hawthorn disclosed in Embodiment 1, the hawthorn is placed directly in the conical hole 503 of the loading template 5, and then the loading template 5 carries the hawthorn from left to right under the action of the closed-loop conveyor 3.

[0029] When the loading module 5 moves to the position corresponding to the wave segment 602, due to the interaction between the guide wheel 505 and the wave segment 602, the loading module 5 will also have a back-and-forth reciprocating motion during its left-right movement. At this time, if the hawthorn in the conical hole 503 is not in a straight position, its lower end will protrude a portion of the conical hole 503. This causes the hawthorn to move laterally and longitudinally with the loading module 5, and the numerous bristles 111 on the horizontal plate 11 below it will interact with the hawthorn protruding from the conical hole 503 in two dimensions. This allows the hawthorn to roll irregularly in the conical hole 503 until it is in a straight position. The straightened hawthorn does not protrude from the conical hole 503 and therefore does not interact with the bristles, keeping it in a straight position and conveyed directly below the de-core mechanism 7.

[0030] When the hawthorns, after being adjusted in posture, move along the loading template 5 to directly below the pitting mechanism 7, the lowering cylinder 704 first drives the lifting seat 703 to move downwards until it is in contact with the upper surface of the loading template 5, thus confining the hawthorns within the cavity formed by the conical hole 503 and the limiting hole 711. Then, the cam motor 709 rotates one revolution, and under the combined action of the lowering cam 710 and the spring 705, the punching strip 706 and the punching head 707 move downwards and then upwards, thereby completing the pitting action of the hawthorns. The removed pits are received and sent out by the pitting conveyor 8, and the pitted hawthorns are finally collected by falling from the end. Example 2

[0031] Example 2 discloses a candied hawthorn pitting machine further designed based on the technical solution in Example 1. The similarities between it and Example 1 will not be described again.

[0032] Reference Appendix Figure 1 Appendix Figure 2 and attached Figure 7 In this embodiment 2, an automatic feeding mechanism 10 is also provided on the left side of the conveyor seat 2. The automatic feeding mechanism 10 includes a support frame 101, a hopper 102 is fixed at the upper end of the support frame 101, and an inclined plate 103 for receiving hawthorns is provided below the hopper 102. Roller grooves 104 corresponding to each conical hole 503 on the loading template 5 are spaced apart on the upper surface of the inclined plate 103.

[0033] In addition, a support 105 is provided on the side end of the inclined plate 103. A first cylinder 106 and a second cylinder 107 are spaced apart on the upper end of the support 105. A first baffle plate 108 and a second baffle plate 109 are respectively connected to the lower ends of the first cylinder 106 and the second cylinder 107. When the hawthorns are being fed, each roller groove 104 can be used to convey a row of hawthorns. Then, under the action of the first cylinder 106 and the second cylinder 107, the first baffle plate 108 and the second baffle plate 109 perform a lifting and lowering action, so that the hawthorns in the roller groove 104 are discharged one at a time and received by the conical hole 503 on the loading template 5, realizing fully automated feeding.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pitting machine for candied hawthorn berries, comprising a base and a conveyor seat disposed on the base, characterized in that, The conveyor seat is provided with two closed-loop conveyor components that are parallel to each other and driven by the same power source. Multiple limiting slide rails perpendicular to the conveying direction are evenly spaced on the two closed-loop conveyor components. Loading templates are slidably arranged on the two limiting slide rails that are aligned front to back in each group. The conveyor seat is provided with a closed-loop block that is parallel to the closed-loop conveyor components. The loading module includes a long strip with a row of tapered holes spaced apart on its upper surface. The end of the long strip is connected to a guide wheel extending to the closed-loop block via a connecting rod. The closed-loop block is provided with a closed-loop guide groove that interacts with all the guide wheels. The closed-loop guide groove is composed of a straight section and a wave section. A horizontal plate is fixed in the conveyor seat. Brushes that act on the hawthorns extending from the tapered holes are provided on the horizontal plate at the position corresponding to the wave section. A pitting mechanism is provided on the conveyor seat located downstream of the wave section. A side-exiting pit conveyor is provided in the conveyor seat directly below the pitting mechanism.

2. The hawthorn pitting machine for candied hawthorn skewers according to claim 1, characterized in that, Both ends of the long strip are provided with sliding blocks that interact with the limiting slide rail, and a row of tapered holes are opened on the long strip between two sliding blocks.

3. A pitting machine for candied hawthorn berries according to claim 1 or 2, characterized in that, The outer diameter of the conical hole is larger than the average diameter of the hawthorn, and the inner diameter of the conical hole is set between 1 / 3 and 1 / 2 of the average diameter of the hawthorn.

4. The pitting machine for candied hawthorn berries according to claim 1, characterized in that, The core removal mechanism consists of a gantry frame and a lifting seat. The lifting seat is located within the gantry frame and is driven by a downward pressure cylinder at the top of the lifting seat. A punching strip is connected to the top of the lifting seat via a spring. A row of punching heads corresponding to each tapered hole on the loading die strip is connected to the punching strip. A cam pressing assembly acting on the punching strip is provided in the lifting seat.

5. The hawthorn pitting machine for candied hawthorn skewers according to claim 5, characterized in that, The cam pressing assembly includes a bearing housing and a cam motor mounted on the lifting seat, with a pressing cam acting on the punch strip disposed between the bearing housing and the cam motor.

6. The hawthorn pitting machine for candied hawthorn skewers according to claim 5, characterized in that, The lower surface of the lifting seat is provided with limiting holes that are aligned vertically with each punch head. The limiting holes and the tapered holes form a cavity for accommodating and restricting the hawthorn.

7. The pitting machine for candied hawthorn berries according to claim 1, characterized in that, It also includes an automatic feeding mechanism at the end of the conveyor seat. The automatic feeding mechanism includes a fixedly installed hopper, and a sloping plate for receiving hawthorns is provided below the hopper. The upper surface of the sloping plate is provided with roller grooves that correspond to each conical hole on the loading mold strip. The inclined plate is provided with a support on its side end, and a first cylinder and a second cylinder are provided at intervals on the upper end of the support. The lower ends of the first cylinder and the second cylinder are respectively connected to a first baffle plate and a second baffle plate for intercepting hawthorns in the raceway groove.

8. The pitting machine for candied hawthorn berries according to claim 1, characterized in that, The closed-loop conveyor is a conveyor belt assembly or a conveyor chain assembly.

9. The hawthorn pitting machine for candied hawthorn skewers according to claim 1, characterized in that, The wave segment is a wave-shaped or reciprocating broken line segment structure.

Citation Information

Patent Citations

  • Full-automatic hawthorn pitting machine

    CN219961882U