A loading device for a silica gel curing machine

Abstract

The application relates to the technical field of silica gel accessory processing equipment, in particular to a silica gel vulcanizing machine feeding device, which comprises a three-axis mechanical hand assembly, a glue injection assembly, a feeding assembly and a workbench for placing a mold, the three-axis mechanical hand assembly comprises an X-axis linear module arranged above the workbench in the transverse direction, a Z-axis linear module fixed on a sliding block of the X-axis linear module in the vertical direction and a Y-axis linear module fixed on a sliding block of the Z-axis linear module in the longitudinal direction, the glue injection assembly is fixed on the Y-axis linear module and comprises a plurality of parallel injection syringes, the feeding assembly comprises a storage tank, a conveying pump and a feeding pipeline, and the storage tank is sequentially connected with the conveying pump and the injection syringe through the feeding pipeline. Through the integration of mechanical motion control, material conveying and pressure regulation, the application realizes full-automatic operation of liquid silica gel from storage to precise glue injection, effectively reduces manual intervention and improves production efficiency.

Description

Technical Field

[0001] This application relates to the field of silicone accessory processing equipment technology, and in particular to a silicone vulcanizing machine feeding device. Background Technology

[0002] With the rapid development of the consumer electronics industry and the continuous upgrading of electronic products, consumers have increasingly higher requirements for product functions, appearance and quality. As an important component of electronic products, silicone accessories play a key role in sealing, insulation and shock absorption.

[0003] In related technologies, the current silicone accessory manufacturing industry generally adopts low-cost solid silicone processing technology. For liquid silicone processing, the feeding methods mainly include the following two: one is manual pouring, in which the operator holds a container and pours the raw material into the mold; the other is to use a fixed single-point injection machine, which uses a pneumatic cylinder to push the plunger to complete the injection.

[0004] Existing liquid silicone feeding methods suffer from the following problems: the former requires a high degree of manual intervention and is labor-intensive; the latter has a simple injection trajectory, which, while reducing labor costs, cannot meet the needs of complex injection trajectories. The combined production efficiency of both methods is low, making it difficult to meet the demands of mass production. Utility Model Content

[0005] To improve production efficiency, this application provides a feeding device for a silicone vulcanizing machine.

[0006] The technical solution of the silicone vulcanizing machine feeding device provided in this application is as follows: A silicone vulcanizing machine feeding device includes a three-axis robot assembly, a glue injection assembly, a material supply assembly, and a worktable for placing molds. The three-axis robot assembly includes an X-axis linear module arranged horizontally above the worktable, a Z-axis linear module fixed vertically to the slider of the X-axis linear module, and a Y-axis linear module fixed longitudinally to the slider of the Z-axis linear module. The glue injection assembly is fixed on the Y-axis linear module and includes multiple syringes arranged in parallel. The material supply assembly includes a storage tank, a delivery pump, and a delivery pipeline. The storage tank is connected to the delivery pump and the syringes in sequence through the delivery pipeline.

[0007] By adopting the above technical solution, the liquid silicone in the storage tank is pressurized by the delivery pump and then delivered to the syringe through the delivery pipeline. After the three-axis robot assembly accurately positions the injection assembly above the mold, the multi-point parallel syringes simultaneously inject the silicone into multiple molds to complete the feeding process. This effectively reduces manual intervention and improves production efficiency compared to the traditional feeding method.

[0008] Preferably, a slide plate is slidably disposed on the Y-axis linear module, and a support seat parallel to the Z-axis linear module is disposed at the end of the slide plate. The cavity spacing of the plurality of syringes in the corresponding molds is sequentially spaced along the length direction of the support seat.

[0009] By adopting the above technical solution, the sliding plate structure reduces the number of repeated positioning in the depth direction, and together with the support seat, it provides a stable working environment for the injection unit. At the same time, it optimizes the injection point position, enabling precise alignment between the injection unit and the mold cavity, thereby reducing the scrap rate and indirectly improving product quality and consistency.

[0010] Preferably, multiple syringes are screwed to the front end of the support seat, and each syringe has an injection port symmetrically arranged on the left and right sides of its lower end, and the total number of injection ports is always consistent with the number of single-row mold cavities in the mold.

[0011] By adopting the above technical solution, the threaded connection facilitates the installation, disassembly and maintenance of the syringe. Operators can flexibly adjust the number and position of syringes according to production needs and mold types, thereby improving the versatility and adaptability of the device and meeting the diversified production needs of silicone accessory products.

[0012] Preferably, the X-axis linear module is a motor-driven synchronous belt type linear module, and the Z-axis linear module and the Y-axis linear module are both servo motor-driven ball screw linear modules.

[0013] By adopting the above technical solutions, the synchronous belt linear module has high moving speed and long stroke, meeting the requirements for long-distance rapid movement in the horizontal direction; the ball screw linear module has high motion accuracy and high structural rigidity, which can ensure accurate positioning in the depth and vertical directions, and comprehensively improve mechanical efficiency and repeatability.

[0014] Preferably, a temperature sensor is installed inside the storage tank, and a displacement sensor is installed on the side wall of the support seat.

[0015] By adopting the above technical solutions, the temperature detection function of the stored materials and the position feedback function of the syringe are realized respectively, thereby improving the operational reliability of the equipment.

[0016] Preferably, it also includes a control box, which is located adjacent to the workbench, and the three-axis robot arm assembly, the delivery pump, the temperature sensor and the displacement sensor are all electrically connected to the control box.

[0017] By adopting the above technical solution, the control box is responsible for receiving and processing sensor data and directing the actuators to perform actions, thereby forming a complete closed-loop control system.

[0018] Preferably, the delivery pump adopts a hydraulically driven plunger pump or a supporting pump for a precision two-component injection molding machine, a filter screen structure is arranged at the discharge end of the storage tank, and the delivery pipeline adopts a corrosion-resistant flexible hose.

[0019] By adopting the above technical solution, efficient pumping of materials is realized. The filter screen design can reduce solid particles from entering the delivery system, lower the risk of wear or blockage of the pump and the pipeline. The corrosion-resistant flexible hose absorbs displacement and vibration generated by temperature changes and pressure fluctuations of the pipeline, and resists damage to the inner wall of the pipeline from abrasive media, thus extending the overall service life.

[0020] Preferably, the glue injection assembly further comprises a residual glue removal module fixed on the side wall of the workbench, the residual glue removal module comprises a high-pressure gas nozzle adapted to the size of the injection port and a rotary scraper, and the high-pressure gas nozzle is communicated with an external gas source through a compressed air pipeline.

[0021] By adopting the above technical solution, it is convenient for operators to remove residual liquid silica gel immediately and efficiently. The combined mechanical and pneumatic cleaning ensures a stable and reliable glue removal effect, and reduces the risk of blockage of the injector.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The liquid silica gel in the storage tank is pressurized by the delivery pump and then delivered to the injectors through the delivery pipeline. After the three-axis manipulator assembly precisely positions the glue injection assembly above the molds, the multiple injectors connected in parallel synchronously inject silica gel into a plurality of molds to complete the feeding process. Compared with the traditional feeding method, manual intervention is effectively reduced, and the production efficiency is improved; 2. The sliding plate sliding structure of the Y-axis linear module reduces the number of repeated positioning in the depth direction, and cooperates with the bearing seat to provide a stable working environment for the injector group. At the same time, the glue injection points are optimized to achieve precise alignment between the injector group and the mold cavities, thereby reducing the scrap rate and indirectly improving the product quality and consistency; 3. The threaded connection facilitates the installation, disassembly and maintenance of the injectors. Operators can flexibly adjust the number and positions of the injectors according to production requirements and mold types, thereby improving the versatility and adaptability of the device and meeting the diversified production requirements of silica gel accessory products. Brief Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0024] Figure 2 is a schematic diagram of the overall structure of the three-axis manipulator assembly in the embodiment of the present application.

[0025] Figure 3 is a schematic diagram of the matching relationship between the injector and the bearing seat in the embodiment of the present application.

[0026] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Three-axis robot assembly; 21. X-axis linear module; 22. Z-axis linear module; 23. Y-axis linear module; 231. Slide plate; 232. Bearing seat; 233. Displacement sensor; 3. Glue injection assembly; 31. Injector; 311. Injection port; 32. Residual glue removal module; 321. High-pressure gas nozzle; 4. Feeding assembly; 41. Storage tank; 42. Material conveying pipeline; 43. Conveying pump; 5. Control box. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] This application discloses a feeding device for a silicone vulcanizing machine. (Refer to...) Figure 1-3 In this embodiment, a silicone vulcanizing machine feeding device includes a three-axis manipulator assembly 2, a glue injection assembly 3, a feeding assembly 4, and a worktable 1 for placing molds. The three-axis manipulator assembly 2 includes an X-axis linear module 21 arranged horizontally above the worktable 1, a Z-axis linear module 22 fixed vertically on the slider of the X-axis linear module 21, and a Y-axis linear module 23 fixed longitudinally on the slider of the Z-axis linear module 22. The glue injection assembly 3 is fixed on the Y-axis linear module 23 and includes multiple syringes 31 installed in parallel. The feeding assembly 4 includes a storage tank 41, a delivery pump 43, and a delivery pipeline 42. The storage tank 41 is used to store the mixed two-component liquid silicone, and it is connected to the delivery pump 43 and the syringes 31 in sequence through the delivery pipeline 42.

[0029] Correspondingly, the X-axis linear module 21, Z-axis linear module 22, and Y-axis linear module 23 respectively drive the syringe 31 to move horizontally, vertically, and in depth. The three-axis linkage enables the precise positioning of the glue injection component 3 in three-dimensional space. After the glue injection component 3 at the end of the Z-axis moves multiple parallel syringes 31 to the top of the mold, the liquid silicone in the storage tank 41 is pressurized by the delivery pump 43 and continuously injected into the syringe 31 through the delivery pipeline 42. The flow rate and pressure of the silicone remain constant. Under the control of the three-axis robot component 2, the syringe 31 synchronously injects liquid silicone into the mold cavity according to the preset path, completing the loading process.

[0030] Therefore, by integrating mechanical motion control, material conveying and pressure regulation, this device achieves fully automated operation of liquid silicone from storage to precise injection. Compared with traditional feeding methods, it reduces manual intervention, effectively reduces labor costs, and improves production efficiency, making it suitable for mass production scenarios of silicone accessories.

[0031] Specifically, a sliding plate 231 is slidably mounted on the Y-axis linear module 23, and a support seat 232 parallel to the Z-axis linear module 22 is fixed at the end of the sliding plate 231. Therefore, the sliding plate 231, as an intermediate connecting component, transmits the linear motion of the Y-axis linear module 23 to the support seat 232. The sliding plate 231 structure can dynamically adjust the coverage range of the syringe 31 group in the Z-axis direction, ensuring the integrity of the motion trajectory, and working with the support seat 232 to provide a stable working environment for the syringe 31.

[0032] Furthermore, multiple syringes 31, corresponding to the cavity spacing in the mold, are sequentially installed at intervals along the length of the support 232 at the front end of the support 232 via fasteners. This structure makes full use of the installation space and reduces mutual interference by optimizing the injection points. Each syringe 31 can independently adjust the flow rate and pressure to ensure the injection quality is consistent with the product. The threaded connection method also facilitates the installation, disassembly, and subsequent maintenance of the syringes 31.

[0033] Meanwhile, an injection port 311 is symmetrically arranged on the left and right sides of the lower end of the syringe 31. This structural design makes the liquid silicone more evenly distributed in the mold cavity and reduces the risk of air bubbles in the mold cavity. Compared with the single injection port 311 structure, it can effectively shorten the single injection time.

[0034] Furthermore, the operator can flexibly adjust the number and position of the syringes 31 according to production needs and mold types, so that the total number of injection ports 311 always matches the number of single-row mold cavities in the mold, and ensures that the syringe group 31 is precisely aligned with the mold cavity. With the continuous feeding of the feeding component 4, parallel injection of multiple mold cavities and adaptive filling of complex molds can be achieved, thereby reducing the scrap rate, reducing material costs, improving the versatility and compatibility of the device, and meeting the diversified production needs of silicone accessory products.

[0035] In the process described above, the X-axis linear module 21 is a synchronous belt type linear module driven by a motor, while the Z-axis linear module 22 and the Y-axis linear module 23 are both ball screw linear modules driven by servo motors.

[0036] Correspondingly, the synchronous belt linear module has high speed, long stroke, and low energy loss, meeting the requirements for rapid movement in the X-axis direction, providing sufficient range of motion, and smooth and accurate transmission with buffering and shock absorption capabilities; the ball screw linear module has high motion accuracy, ensuring precise positioning in the depth and vertical directions. The ball screw is usually made of high-strength materials, with high rigidity and load-bearing capacity, suitable for heavy-duty and high-rigidity applications. It uses rolling friction to stably support the injection assembly 3, achieving instant stop and start in the linear direction.

[0037] In summary, the three-axis linear module achieves high-precision three-dimensional spatial positioning through appropriate selection and coordination, comprehensively improving mechanical efficiency and repeatability, and meeting the comprehensive requirements of silicone vulcanizing machines for speed, accuracy, and stability.

[0038] On the other hand, in this embodiment, the delivery pump 43 is a hydraulically driven plunger pump, whose high pressure and high flow characteristics can maintain the integrity of the material when conveying high viscosity media, thus achieving efficient pumping of liquid silica gel; the discharge end of the storage tank 41 is equipped with a filter screen structure to reduce the occurrence of solid particles or other impurities entering the conveying system, thereby reducing the risk of wear or blockage of the pump and pipeline; the conveying pipeline 42 is made of corrosion-resistant flexible hose, which can absorb the displacement and vibration of the pipeline caused by temperature changes and pressure fluctuations through its flexibility, while resisting the damage of corrosive media such as acids and alkalis to the inner wall of the pipeline, reducing downtime maintenance time and extending the overall service life.

[0039] In addition, it includes a control box 5, which is located close to the workbench 1. At the same time, a temperature sensor (not shown in the attached figure) is installed inside the storage tank 41, and a displacement sensor 233 is installed on the side wall of the fixed support 232. The control box 5 is electrically connected to the three-axis robot arm assembly, the conveying pump 43, the temperature sensor and the displacement sensor 233 respectively.

[0040] Therefore, the control box 5, through the integrated PLC system, receives in real time the silicone temperature data of the storage tank 41 monitored by the temperature sensor and the position signal of the bearing seat 232 fed back by the displacement sensor 233. During the glue injection process, it dynamically adjusts the Z-axis pressing speed of the three-axis manipulator assembly 2 and the pressure of the delivery pump 43. At the same time, it corrects the positioning trajectory of the syringe 31 group according to the displacement, forming a closed-loop control process of "sensor monitoring - algorithm decision - execution correction".

[0041] On the other hand, the dispensing assembly 3 also includes a residual adhesive removal module 32 fixed to the side wall of the workbench 1. The residual adhesive removal module 32 includes a high-pressure gas nozzle 321 adapted to the size of the injection port 311 and a rotary scraper (not shown in the figure). The high-pressure gas nozzle 321 is connected to an external air source through a compressed air pipeline, which can generate a high-pressure airflow that can accurately act on the residual adhesive area to quickly blow away soft residual adhesive. The cleaning force can be changed by adjusting the air source pressure to adapt to residual adhesives of different viscosities. The rotary scraper is used to physically scrape away solidified or hardened residual adhesive, effectively removing stubborn residues that are difficult to remove with high-pressure gas.

[0042] In summary, the operator first activates the high-pressure gas nozzle 321 to blow away most of the soft residual adhesive, and then uses a rotating scraper to treat stubborn residues, completing an immediate and efficient cleaning of residual liquid silicone. This mechanical-pneumatic combined cleaning method ensures stable and reliable adhesive removal, effectively reduces the risk of clogging of the syringe 31, and improves the overall cleaning effect.

[0043] The implementation principle of the silicone vulcanizing machine feeding device in this application embodiment is as follows: Under the control of the three-axis robot component 2, the injection component 3 carries multiple parallel injectors 31 and moves to the top of the mold. The liquid silicone in the storage tank 41 is pressurized by the delivery pump 43 and continuously injected into the injectors 31 through the delivery pipeline 42. Then, the injectors 31 synchronously inject liquid silicone into the mold cavity to complete the feeding process. This device realizes the fully automated operation of liquid silicone from storage to precise injection by integrating mechanical motion control, material conveying and pressure regulation. Compared with the traditional feeding method, it reduces manual intervention, effectively reduces labor costs, and improves production efficiency. It is suitable for mass production scenarios of silicone accessories.

[0044] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for a silicone vulcanizing machine, characterized in that, The assembly includes a three-axis manipulator assembly (2), an injection assembly (3), a feeding assembly (4), and a worktable (1) for placing molds. The three-axis manipulator assembly (2) includes an X-axis linear module (21) arranged horizontally above the worktable (1), a Z-axis linear module (22) fixed vertically on the slider of the X-axis linear module (21), and a Y-axis linear module (23) fixed longitudinally on the slider of the Z-axis linear module (22). The injection assembly (3) is fixed on the Y-axis linear module (23) and includes multiple syringes (31) arranged in parallel. The feeding assembly (4) includes a storage tank (41), a delivery pump (43), and a delivery pipeline (42). The storage tank (41) is connected to the delivery pump (43) and the syringes (31) in sequence through the delivery pipeline (42).

2. The feeding device for a silicone vulcanizing machine according to claim 1, characterized in that, A slide plate (231) is slidably disposed on the Y-axis linear module (23), and a support seat (232) parallel to the Z-axis linear module (22) is disposed at the end of the slide plate (231). The distance between the cavity of the multiple syringes (31) in the mold is arranged sequentially along the length direction of the support seat (232).

3. The feeding device for a silicone vulcanizing machine according to claim 2, characterized in that, Multiple syringes (31) are screwed to the front end of the support seat (232). Each syringe (31) has an injection port (311) symmetrically arranged on the left and right sides of its lower end. The total number of injection ports (311) is always consistent with the number of single-row mold cavities in the mold.

4. The feeding device for a silicone vulcanizing machine according to claim 1, characterized in that, The X-axis linear module (21) is a synchronous belt type linear module driven by a motor, and the Z-axis linear module (22) and the Y-axis linear module (23) are both ball screw linear modules driven by servo motors.

5. The feeding device for a silicone vulcanizing machine according to claim 2, characterized in that, A temperature sensor is installed inside the storage tank (41), and a displacement sensor (233) is installed on the side wall of the support (232).

6. The feeding device for a silicone vulcanizing machine according to claim 5, characterized in that, It also includes a control box (5), which is located adjacent to the workbench (1). The three-axis manipulator assembly (2), the delivery pump (43), the temperature sensor and the displacement sensor (233) are all electrically connected to the control box (5).

7. The feeding device for a silicone vulcanizing machine according to claim 1, characterized in that, The delivery pump (43) is a hydraulically driven plunger pump or a precision two-component injection molding machine pump. The discharge end of the storage tank (41) is equipped with a filter screen structure. The delivery pipeline (42) is a corrosion-resistant flexible hose.

8. The feeding device for a silicone vulcanizing machine according to claim 3, characterized in that, The glue injection assembly (3) also includes a residual glue removal module (32) fixed to the side wall of the workbench (1). The residual glue removal module (32) includes a high-pressure gas nozzle (321) adapted to the size of the injection port (311) and a rotating scraper. The high-pressure gas nozzle (321) is connected to an external air source through a compressed air pipeline.

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