Dart board servo integrated forming hydraulic machine
By utilizing the multi-cylinder linkage technology and PLC control system of the servo integrated molding hydraulic press, the problem of material springback deformation in the dartboard hydraulic press was solved, achieving high-precision pressure and displacement control, improving product qualification rate and production efficiency, and reducing costs and energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TENGZHOU DAYUN MACHINERY CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-01
AI Technical Summary
The existing hydraulic press for dartboards suffers from severe material rebound deformation during the pressing process, resulting in excessive product dimensional tolerances, low pass rate, and large pressure adjustment accuracy and displacement error in the hydraulic system.
The system employs a servo-integrated molding hydraulic press, combining a servo motor, multi-cylinder linkage technology, a PLC control system, and real-time feedback from multiple sensors to achieve high-precision pressure and displacement control. Through multi-stage precise pressure adjustment and overpressure protection, the mold layout is optimized, integrating the servo hydraulic press with multi-cylinder linkage technology.
It improves the dimensional consistency and compressive strength of products, reduces material costs, increases product qualification rate and production efficiency, saves energy and reduces consumption, is easy to operate, and is suitable for the efficient production of precision composite materials.
Smart Images

Figure CN224183830U_ABST
Abstract
Description
Dartboard Servo Integrated Molding Hydraulic Press Technical Field
[0001] This utility model relates to the technical field of hydraulic equipment for the production and processing of dartboards, specifically a servo integrated molding hydraulic press for dartboards. Background Technology
[0002] As an important sporting equipment for both professional competitions and casual recreation, the core performance of dartboards relies on the uniform molding and stable structure of high-density composite materials. Hydraulic presses, through precise pressure control and intelligent process integration, achieve efficient compression and shaping of raw materials such as sisal fibers in dartboard production. This ensures high consistency in product hardness, resilience, and dimensions, meeting the stringent standards of international competitions while providing durable and reliable products for the mass consumer market. Its high efficiency, energy saving, and high yield rate have driven the popularization of darts and the large-scale development of the industry.
[0003] The existing technology has the following shortcomings: the existing dartboard hydraulic press only presses the raw material, the hydraulic system has low pressure adjustment accuracy (usually > ±5%) and large displacement error (> ± 0.5 mm), which makes the material prone to springback deformation during the compression molding stage, the product dimensional tolerance exceeds the standard, and the pass rate is only about 85% to 90%. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a servo integrated molding hydraulic press for dartboards, which solves the problem of low yield rates caused by easy deformation due to material springback.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dartboard servo integrated molding hydraulic press, including a worktable, a servo motor, and a column, wherein the servo motor is disposed on the side of the worktable and the column is disposed on the upper end of the worktable.
[0006] An upper beam is provided on the outer periphery of the upper end of the column, a movable beam is provided on the outer periphery of the middle part of the column, a PLC control console is provided on the side end of the workbench, and a lower top cylinder is provided at the bottom of the middle part of the workbench.
[0007] The PLC console also includes a control panel and an electrical control box. The control panel is fixedly installed on the top of the PLC console, and the electrical control box is plugged into the inside of the PLC console.
[0008] As a preferred technical solution of this utility model, the upper beam also includes a main oil cylinder, an auxiliary oil cylinder, a guide rod and a solenoid valve. The main oil cylinder and the auxiliary oil cylinder are respectively fixedly installed on the top of the upper beam, and two sets of auxiliary oil cylinders are provided.
[0009] As a preferred embodiment of this utility model, the guide rod is provided in four sets and inserted into the upper beam, with its end connected to the movable beam, and the solenoid valve is fixedly installed on the upper end of the upper beam.
[0010] As a preferred technical solution of this utility model, the worktable further includes a mold groove, a displacement sensor and a pressure sensor. The mold groove is opened on the upper surface of the worktable, and the displacement sensor and the pressure sensor are embedded in the upper surface of the worktable.
[0011] As a preferred embodiment of this utility model, the lower cylinder is provided with a rod-shaped structure inside, and the upper end of the rod-shaped structure is provided with a disc-shaped body embedded in the mold groove, while the lower cylinder is fixedly installed inside the worktable.
[0012] As a preferred technical solution of this utility model, the upper beam and the movable beam are in the form of a rectangular frame structure, wherein a circular pressure plate structure is provided at the bottom of the movable beam.
[0013] As a preferred technical solution of this utility model, the electrical control box is also equipped with a relay, a pull ruler and a pressure transmitter, and the side of the workbench is fixedly connected to the PLC control console.
[0014] Compared with the prior art, the present invention provides a servo integrated molding hydraulic press for dartboards, which has the following beneficial effects:
[0015] This dartboard servo integrated molding hydraulic press, equipped with an upper beam, main cylinder, auxiliary cylinder, movable beam, solenoid valve, displacement sensor, and pressure sensor, operates as follows: The operator places the product on the mold slot and then places the iron hoop inside the straight opening of the movable beam. The control panel controls the auxiliary cylinder to rapidly descend the movable beam to a set value, then slows down. Upon reaching the mold, pressure is applied and stopped at the set value. The auxiliary cylinder then presses the product with the mold, stopping and holding pressure after reaching the set value. The main cylinder rapidly descends the pressure plate to a set value, then slows down, stopping and pushing the cylinder to eject the baffle, stopping after ejecting to the set value. The main cylinder then lowers the pressure plate to the set value and holds pressure. The lower ejector cylinder rises to the set value and stops, while the main cylinder raises the pressure plate. After the pressure plate stops, the lower ejector cylinder rises to the set value and stops. The main hydraulic cylinder drives the pressure plate to descend to the set value and then stops. The main hydraulic cylinder then drives the pressure plate to rise to the set position, while the auxiliary hydraulic cylinder drives the movable beam to rise to the set position and then stops. At this point, the product is removed, thus completing one cycle of operation.
[0016] Through the above settings and processes, compared to existing dartboard hydraulic devices, this equipment utilizes a servo hydraulic press and multi-cylinder linkage technology. High-precision servo adjustment (pressure accuracy ±1%, displacement accuracy ±0.05mm) further completes the extrusion molding of sisal raw materials, eliminating the risk of rebound and deformation, and ensuring product dimensional consistency and fit. The optimized mold layout via the slotted movable plate and box-type worktable structure reduces size by 15% and material costs by 12%, while simultaneously increasing compressive strength by 30%. The integrated PLC touch control system and multi-sensor real-time feedback enable stepless cylinder speed regulation, multi-stage precise pressure control, and automatic overpressure protection. Combined with the dual control mode of hydraulic multi-way valves and flange pressure plates, the product qualification rate is increased to 98%, production efficiency is increased by 35%, and it also boasts advantages such as energy saving (energy consumption reduced by 20%), convenient operation, and low-cost maintenance, making it suitable for the efficient production of precision composite materials. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 is a schematic diagram of the side end structure of this utility model;
[0019] Figure 3 is a schematic diagram of the connection structure between the upper beam and the main and auxiliary oil cylinders of this utility model.
[0020] Figure 4 is a schematic diagram of the location of the mold groove in this utility model.
[0021] In the diagram: 1. Workbench; 101. Mold slot; 102. Displacement sensor; 103. Pressure sensor; 2. Servo motor; 3. Column; 4. Upper beam; 401. Main cylinder; 402. Auxiliary cylinder; 403. Guide rod; 404. Solenoid valve; 5. Movable beam; 6. PLC control console; 601. Control panel; 602. Electrical control box; 7. Lower cylinder. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In this implementation plan: the dartboard servo integrated forming hydraulic press includes a worktable 1, a servo motor 2, and a column 3. The servo motor 2 is located on the side of the worktable 1, and the column 3 is located on the top of the worktable 1.
[0024] An upper beam 4 is provided on the outer perimeter of the upper end of the column 3, a movable beam 5 is provided on the outer perimeter of the middle part of the column 3, a PLC control console 6 is provided on the side end of the workbench 1, and a lower top cylinder 7 is provided at the bottom of the middle part of the workbench 1.
[0025] The PLC console 6 also includes a control panel 601 and an electrical control box 602. The control panel 601 is fixedly installed on the upper part of the PLC console 6, and the electrical control box 602 is plugged into the interior of the PLC console 6.
[0026] In this embodiment, the upper beam 4 also includes a main oil cylinder 401, an auxiliary oil cylinder 402, a guide rod 403, and a solenoid valve 404. The main oil cylinder 401 and the auxiliary oil cylinder 402 are respectively fixedly installed on the top of the upper beam 4. Two sets of auxiliary oil cylinders 402 are provided. Four sets of guide rods 403 are provided and inserted into the interior of the upper beam 4, with their ends connected to the movable beam 5. The solenoid valve 404 is fixedly installed on the upper end of the upper beam 4.
[0027] Specifically, as shown in Figures 1 and 2, the bottom circular pressure plate of the movable beam 5 is equipped with a quick-change flange interface, which can be adapted to Φ200-Φ500mm molds. The center of the pressure plate is embedded with an infrared positioning mark and is optically aligned with the reference point of the mold groove 101.
[0028] In this embodiment, the workbench 1 also includes a mold groove 101, a displacement sensor 102, and a pressure sensor 103. The mold groove 101 is opened on the upper end face of the workbench 1, and the displacement sensor 102 and the pressure sensor 103 are embedded in the upper end of the workbench 1. The lower cylinder 7 has a rod-shaped structure inside, and the upper end of the rod-shaped structure has a disc-shaped body embedded in the mold groove 101. The lower cylinder 7 is fixedly installed inside the workbench 1.
[0029] Specifically, as shown in Figures 3 and 4, when the lower cylinder 7 ejects, the pressure sensor 103 monitors the resistance in real time. When the peak pressure exceeds the set value by 10%, it immediately reverses by 0.5mm and alarms to prevent the mold from jamming.
[0030] In this embodiment, the upper beam 4 and the movable beam 5 are rectangular frame structures, and the bottom of the movable beam 5 is provided with a circular pressure plate structure; the electrical control box 602 is also provided with a relay, a pull ruler and a pressure transmitter, and the side of the workbench 1 is fixedly connected to the PLC control console 6.
[0031] The working principle and usage process of this utility model are as follows: When using this equipment, the operator places the product on the mold slot 101, and then places the iron hoop in the straight opening of the movable beam 5. The auxiliary hydraulic cylinder 402, controlled by the control panel 601, drives the movable beam 5 to descend rapidly to the set value, then slows down, descends slowly to the mold, applies pressure, and stops after reaching the set value. The auxiliary hydraulic cylinder 402 drives the mold to press the product, stopping and holding the pressure after reaching the set value. The main hydraulic cylinder 401 drives the pressure plate to descend rapidly to the set value, then slows down, stopping after reaching the set value, and pushes the hydraulic cylinder to push the baffle out, stopping after reaching the set value. The main hydraulic cylinder 401 drives the pressure plate to descend to the set value, stops, and enters the pressure holding phase. The lower ejector cylinder 7 rises to the set value and stops, while the main hydraulic cylinder 401 drives the pressure plate to rise. After the pressure plate stops, the lower ejector cylinder 7 rises to the set value and stops. The main hydraulic cylinder 401 drives the pressure plate to descend to the set value and then stops. The main hydraulic cylinder 401 drives the pressure plate to rise to the set position, while the auxiliary hydraulic cylinder 402 drives the movable beam 5 to rise to the set position and then stops. At this time, the product is removed, thus completing one action cycle.
[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A servo-driven integrated hydraulic press for forming dartboards, comprising a worktable (1), a servo motor (2), and a column (3), wherein the servo motor (2) is disposed on the side of the worktable (1), and the column (3) is disposed on the upper end of the worktable (1), characterized in that: The upper outer perimeter of the column (3) is provided with an upper beam (4), the middle outer perimeter of the column (3) is provided with a movable beam (5), the side end of the workbench (1) is provided with a PLC control console (6), and the bottom end of the middle part of the workbench (1) is provided with a lower top cylinder (7); the PLC control console (6) also includes a control panel (601) and an electrical control box (602). The control panel (601) is fixedly installed on the upper end of the PLC control console (6), and the electrical control box (602) is plugged into the inside of the PLC control console (6).
2. The dartboard servo integrated molding hydraulic press according to claim 1, characterized in that: The upper beam (4) also includes a main oil cylinder (401), an auxiliary oil cylinder (402), a guide rod (403) and a solenoid valve (404). The main oil cylinder (401) and the auxiliary oil cylinder (402) are respectively fixedly installed on the top of the upper beam (4), and there are two sets of auxiliary oil cylinders (402).
3. The dartboard servo integrated molding hydraulic press according to claim 2, characterized in that: The guide rod (403) is provided in four sets and is inserted into the upper beam (4), with its end connected to the movable beam (5). The solenoid valve (404) is fixedly installed on the upper end of the upper beam (4).
4. The dartboard servo integrated molding hydraulic press according to claim 1, characterized in that: The workbench (1) also includes a mold groove (101), a displacement sensor (102) and a pressure sensor (103). The mold groove (101) is opened on the upper surface of the workbench (1), and the displacement sensor (102) and the pressure sensor (103) are embedded in the upper part of the workbench (1).
5. The dartboard servo integrated molding hydraulic press according to claim 1, characterized in that: The lower cylinder (7) has a rod-shaped structure inside, and a disc-shaped body is provided at the upper end of the rod-shaped structure and embedded in the mold groove (101). The lower cylinder (7) is fixedly installed inside the worktable (1).
6. The dartboard servo integrated molding hydraulic press according to claim 1, characterized in that: The upper beam (4) and the movable beam (5) are rectangular frame structures, and the bottom of the movable beam (5) is provided with a circular pressure plate structure.
7. The servo integrated molding hydraulic press for dartboards according to claim 1, characterized in that: The electrical control box (602) is also equipped with a relay, a pull ruler and a pressure transmitter. The side of the workbench (1) is fixedly connected to the PLC control console (6).