Connector plastic part and auxiliary shaping equipment and preparation method thereof

By designing connector plastic parts auxiliary shaping equipment, using the physical constraints of the shaping block and the directional airflow of the cooling device, the problems of low cooling efficiency and inverted deformation of the plug-in end in the production of connector plastic parts are solved, and higher dimensional accuracy and production yield are achieved.

CN120023987AActive Publication Date: 2025-05-23WENZHOU SHENJI ELECTRONICS TECH
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Patent Information

Application Number
CN202510510959.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-05-23
Estimated Expiration
2045-04-23

AI Technical Summary

Technical Problem

The cooling efficiency of existing connector plastic parts is low during the production process, especially the thin walls of the plug-in ends are prone to shrinkage deformation, resulting in poor dimensional stability and low yield.

Method used

A connector plastic parts auxiliary shaping device is designed, including a feeding table, a fixing device and a cooling device. The fixing device matches the inner wall of the plug-in end through a shaping block, forming a physical limit constraint to offset heat shrinkage; the cooling device accelerates heat exchange through a directional airflow to ensure cooling uniformity.

Benefits of technology

Through the physical constraints of the shaping blocks and the directional airflow of the cooling device, the dimensional accuracy and production yield of the plastic parts are significantly improved, and the shrinkage deformation problems caused by local stress concentration are avoided.

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Abstract

The invention relates to the technical field of electronic component manufacturing, in particular to a connector plastic part and auxiliary shaping equipment and a preparation method thereof, the connector plastic part auxiliary shaping equipment is used for auxiliary shaping in the production process of the connector plastic part and comprises a material placing table, a fixing device and a cooling device, and the material placing table bears the connector plastic part; the fixing device is arranged on the material placing table and comprises a shaping block and a base, the base is provided with a bearing surface used for bearing the connector plastic part, the shaping block is provided with a guide structure, and the outer side surface of the shaping block is matched with the inner wall contour of the inserting end of the connector plastic part so as to limit the inserting end of the connector plastic part from shrinking and deforming inwards; and the cooling device comprises an air outlet for directionally blowing cooling airflow to the plastic part fixing area of the fixing device. Through the synergistic effect of the fixing device and the cooling device, the size precision, the production yield and the production benefits of the plastic part are remarkably improved, and dependence on a complex mold or a secondary shaping process is not needed.
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Description

Technical Field

[0001] The present invention relates to the technical field of electronic component manufacturing, and in particular to a connector plastic part and auxiliary shaping equipment and a preparation method thereof. Background Art

[0002] In the field of electronic equipment manufacturing, connectors are core components for signal transmission. The dimensional accuracy and structural stability of their plastic shells directly affect the electrical performance and service life of the connectors. In the traditional production process of connector plastic parts, the cooling and shaping process after injection molding is particularly critical. After the plastic parts are separated from the mold at high temperature, if the cooling is uneven or there is a lack of effective constraints, they are very likely to deform due to thermal expansion and contraction of the material, resulting in problems such as shrinkage of the inner wall of the plug end and offset of the opening spacing. This phenomenon is particularly prominent in plastic parts with complex geometric structures (such as U-shaped plug ends): the shrinkage of the inner wall will not only reduce the matching accuracy between the plug end and the docking component, but may also cause cracking of the plastic parts due to stress concentration, ultimately resulting in a significant reduction in product yield.

[0003] The cooling and shaping solutions currently used in the industry mainly rely on natural cooling or simple air cooling equipment. Although natural cooling is low-cost, it is inefficient and cannot meet the needs of large-scale continuous production; while traditional air cooling equipment can accelerate heat dissipation, it does not provide sufficient stress and deformation protection for sensitive areas of local deformation of plastic parts (such as the inside of the U-shaped plug end). What's more serious is that during the cooling process, the existing equipment is placed flat on the operating table by its own weight, and the tendency of the inner wall to shrink toward the center when the thermal stress at the opening of the plug end is released cannot be effectively suppressed.

[0004] In summary, how to build a connector plastic parts auxiliary molding equipment with high efficiency and small error has become a technical bottleneck that needs to be broken through in the connector manufacturing field. Summary of the invention

[0005] (I) The technical problem to be solved by the present invention is that the cooling process of the existing connector plastic parts production is inefficient, especially the thin wall of the plug-in end of the connector plastic parts is prone to shrinkage deformation, resulting in poor dimensional stability and low yield rate of the connector plastic parts.

[0006] (II) Technical solution In order to solve the above technical problems, an embodiment of the present invention provides a connector plastic part auxiliary shaping device, which is used for auxiliary shaping after melt molding in the production process of connector plastic parts, including a material placement table, a fixing device and a cooling device, wherein the material placement table can carry the connector plastic part; The fixing device is arranged on the material placing table, and comprises a shaping block and a base, wherein the base is provided with a bearing surface for bearing the connector plastic part, the shaping block extends outward from the bearing surface to form a guide structure, and the outer surface of the shaping block matches the inner wall contour of the plug-in end of the connector plastic part to limit the inward contraction and deformation of the plug-in end of the connector plastic part; The cooling device comprises an air outlet for directionally blowing cooling airflow toward the plastic part fixing area of ​​the fixing device.

[0007] According to one embodiment of the present invention, the connector plastic part auxiliary molding equipment also includes a control device, which is electrically connected to the cooling device. The control device includes a timer for measuring the connector plastic part auxiliary molding time and a control module for triggering the start and stop of the cooling device. The control device can accurately monitor the time during the cooling process to ensure that the duration of each cooling process meets the set requirements, thereby avoiding uneven cooling effect caused by inaccurate cooling time, and further improving the dimensional accuracy and stability of the connector plastic parts. In addition, the start and stop function of the control module can automatically adjust the operating state of the cooling device according to actual needs, making the cooling process more intelligent and automated, reducing the difficulty of manual operation and improving production efficiency.

[0008] According to an embodiment of the present invention, a lifting drive mechanism connected to the control device is provided in the bearing surface, a lifting opening penetrating the bearing surface is provided on the base, and the shaping block passes through the lifting opening and is connected to the lifting drive mechanism.

[0009] The lifting drive mechanism is connected to the control device and is configured to drive the shaping block to move axially along the lifting opening to adjust the height of the shaping block protruding from the bearing surface. Through this design, the lifting drive mechanism can accurately adjust the shaping block according to the actual situation during the cooling process to ensure that the connector plastic parts always maintain the correct shape and position during shaping, and avoid deformation or dimensional deviation of the plastic parts due to improper position of the shaping block. Another function of the lifting mechanism is that when the shaping block generates a certain pressure due to the internal contraction force during the shaping process, the shaping connector plastic parts can be effectively removed from the shaping block through the cooperation of the lifting mechanism and the base bearing surface, effectively avoiding the situation where the connector plastic parts are stuck or difficult to pull out, while ensuring that the shaping block can be easily separated to avoid damage to the connector plastic parts, thereby improving the yield rate in the production process.

[0010] According to one embodiment of the present invention, a plurality of groups of fixing devices are provided on the material placement table, and two groups of shaping blocks are provided on the base of each group of fixing devices. The two groups of shaping blocks on the same base can facilitate the operator to take and place the connector plastic parts on the base with both hands at the same time, so that the operator can take and place the connector plastic parts more conveniently, thereby improving work efficiency; an operating gap is provided between the two groups of shaping blocks, and the operating gaps of all the fixing devices are aligned along a preset direction to form a linearly arranged cooling channel, and the operating gap leaves a fault-tolerant space for the operator, thereby avoiding mutual interference between adjacent connector plastic parts, and at the same time leaving a heat dissipation space for the shaping and heat dissipation of the connector plastic parts.

[0011] The air outlet is strip-shaped, and the central axis is parallel to the cooling channel, so that the wind force center of the cooling airflow acts on the cooling channel, so that the connector plastic parts on both sides of the cooling channel receive uniform wind force, and at the same time the cooling and molding efficiency remains consistent, ensuring the uniform quality of the finished connector plastic parts.

[0012] According to one embodiment of the present invention, an independently arranged lifting drive mechanism is provided in the base of each group of fixing devices, and the lifting drive mechanism is connected to the shaping block on the corresponding base; the control device independently controls the lifting action of each group of lifting drive mechanisms. Since the control device can independently control each group of lifting drive mechanisms, the lifting timing of each shaping unit can be adjusted in time according to the actual situation. When a shaping block is completed, the control device can immediately lower the shaping block to start cooling, while other shaping blocks continue to maintain the shaping state. In this way, the shaping and cooling rhythm of each shaping unit is precisely controlled, avoiding deformation or damage of the product due to asynchronous or delayed operation, thereby further improving the overall yield rate.

[0013] According to one embodiment of the present invention, the connector plastic part auxiliary shaping device further includes: A cabinet is arranged on one side of the material placement table, and an air outlet of a cooling device is provided on the side wall of the cabinet adjacent to the fixing device; the cooling function is modularly integrated into the inner side of the cabinet, which simplifies the equipment layout and maintenance and reserves space for operators' operations on the one hand, and enables the cooling airflow to act more stably and concentratedly on the fixed area of ​​the connector plastic parts on the other hand, effectively improving the air cooling efficiency and shaping consistency.

[0014] Multiple groups of timing indicator lights, each group of timing indicator lights is connected to the timer signal and corresponds to a group of fixtures; the display mode of the timing indicator lights is dynamically switched according to the timing stage of the timer to independently display the cooling time progress of the connector plastic parts on the corresponding fixtures. Through the intuitive feedback of the light color or flashing state, the operator can grasp the cooling state of each plastic part in real time, which is convenient for accurately judging the operation timing, avoiding misoperation or missing the best demoulding window, and further improving the operation efficiency and product consistency; The control device also includes an operation panel, which is integrated into the side wall of the cabinet. The operation panel is communicatively connected to the control device. The integrated design of the operation panel improves the centralization and convenience of human-computer interaction, makes the overall operation logic of the equipment clear and unified, reduces misoperation, and enhances the controllability of on-site management and the consistency of system operation.

[0015] According to one embodiment of the present invention, a pressure sensor is embedded inside the outer surface of the molding block, the pressure sensor is electrically connected to the control device, the detection surface of the pressure sensor is flush with the outer surface of the molding block, and is used to detect in real time the radial pressure exerted by the plug-in end of the connector plastic part on the molding block. Through the embedded setting of the pressure sensor, the system can continuously and accurately sense the contact state and deformation pressure between the plastic part and the molding block during the molding process, realize fully automatic monitoring without manual intervention, improve operating efficiency and ensure the stability of the molding process.

[0016] The control device is configured as follows: Receiving real-time pressure data from the pressure sensor; When the pressure data is within a preset threshold range and the continuous stabilization time reaches a set value, a descending instruction is generated and sent to a corresponding driving mechanism to drive the shaping block to move to a preset position in the bearing surface.

[0017] When the pressure data exceeds the preset threshold range, an alarm signal is generated and the action of the driving mechanism is locked.

[0018] According to one embodiment of the present invention, a accommodating and limiting groove for accommodating the protrusion at the end of the connector plastic part is also provided on the top of the shaping block.

[0019] Another embodiment of the present invention provides a method for preparing a connector plastic part, comprising the following steps: a. Injecting molten plastic into the mold to form a connector plastic part having a plug end; b. The injection molded connector plastic part is transferred to the connector plastic part auxiliary molding device as described in any of the above embodiments for cooling and molding, specifically comprising: b1. The plug-in end of the connector plastic part is sleeved on the outside of the guide structure of the shaping block so that the inner wall of the plug-in end fits the outer surface of the guide structure; b2. Start the cooling device, blowing cooling air through the air outlet to the fixed area of ​​the plastic part; b3. When the cooling time reaches the preset time, remove the connector plastic part from the molding block.

[0020] Another embodiment of the present invention provides a connector plastic part, including a plug-in end interface, and a method for preparing the connector plastic part is the method for preparing the above-mentioned connector plastic part.

[0021] (III) Beneficial effects of the present invention: The directional airflow of the cooling device acts on the fixed area of ​​the plastic part, which accelerates the heat exchange while ensuring the cooling uniformity. At the same time, the guiding structure of the shaping block is precisely matched with the inner wall of the connector plastic part plug-in end, forming a physical limit constraint in the accelerated cooling process, offsetting the internal stress generated by the thermal shrinkage of the plastic part, suppressing the deformation of the plug-in end, and avoiding the shrinkage deformation caused by local stress concentration while accelerating the heat exchange. The synergistic effect of the two significantly improves the dimensional accuracy, production yield and production efficiency of the plastic part without relying on complex molds or secondary shaping processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a connector plastic part auxiliary shaping device provided by an embodiment of the present invention; Figure 2 A schematic diagram of a partial three-dimensional structure of a connector plastic part auxiliary molding device provided by an embodiment of the present invention; Figure 3 A schematic diagram of a three-dimensional structure of a fixing device in a working state provided by an embodiment of the present invention; Figure 4 A schematic diagram of a three-dimensional structure of a base and a shaping block assembly provided in one embodiment of the present invention; Figure 5 A schematic diagram of a three-dimensional structure of a base provided in one embodiment of the present invention; Figure 6 A schematic diagram of the three-dimensional structure of a shaping block provided by an embodiment of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a connector plastic part provided by an embodiment of the present invention.

[0024] Icons: 1. Connector plastic parts; 11. Plug-in interface; 2. Material placement table; 21. Forming block; 211. Pressure sensor; 212. Limiting groove; 22. Base; 221. Bearing surface; 222. Lifting opening; 23. Lifting drive mechanism; 24. Operating gap; 3. Cooling device; 31. Air outlet; 4. Control device; 41. Operation panel; 5. Cabinet; 6. Timing indicator light. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention. Specific embodiments Example

[0026] like Figures 1 to 6 As shown, this embodiment provides a connector plastic part auxiliary shaping device, which is used in the cooling and shaping process after the molten plastic injection molding in the connector plastic part 1 production process, and its structural composition includes a placing table 2, a fixing device and a cooling device 3.

[0027] The material placement table 2 is used to support the shaping equipment structure as a whole and to carry the connector plastic part 1. It is the basic platform of the entire device. A plurality of mounting positions are provided on its upper surface for embedding the base 22 of the fixing device. Specifically, the base 22 is fixedly embedded on the table surface of the material placement table 2. The installation method can be groove matching, threaded fastening, or guide rail sliding. In this embodiment, a groove-embedded fixing structure is preferably used to ensure that the base 22 is stable and does not move during the working process, which is convenient for batch deployment and later maintenance and replacement.

[0028] The fixing device is arranged on the material placing table 2, and mainly includes a shaping block 21 and a base 22. The base 22 structure is used to support the shaping block 21 and connect the lifting mechanism. The upper surface of the base 22 is provided with a bearing surface 221 for bearing the connector plastic part 1. The bearing surface 221 is located above the upper surface of the material placing table 2, that is, the upper end surface of the base 22 is slightly higher than the surface of the material placing table 2, so that the connector plastic part 1 remains exposed after assembly, which is conducive to full contact of the cooling airflow and manual visual inspection. The structural form of the base 22 can be circular, square or other geometric forms that are suitable for the layout of the shaping block 21. In this embodiment, a rectangular plate-like structure is selected to facilitate the formation of a continuous parallel arrangement between multiple groups of fixing devices, which is suitable for the parallel guiding direction of the strip cooling airflow.

[0029] The shaping block 21 extends outward from the bearing surface 221 to form a guide structure, the outer surface of which matches the inner wall profile of the plug-in end of the connector plastic part 1. Through this fitting guide relationship, the plug-in end of the connector plastic part 1 can be effectively restricted from shrinking and deforming in the inner diameter direction under high temperature after demolding. The existence of the guide structure not only provides support and positioning for the plug-in end, but also provides shape constraints during the cooling process, and is particularly suitable for U-shaped or open-structured plug-in ends, and can achieve dimensional retention without relying on a closed mold structure.

[0030] like Figure 4 and Figure 6 As shown, preferably, a accommodating limit groove 212 is also provided on the top of the shaping block 21, and the accommodating limit groove 212 is specifically used to accommodate the protrusion at the end of the connector plastic part 1. The design of the accommodating limit groove 212 enables the shaping block 21 to provide precise support and positioning for the protrusion at the end of the connector plastic part 1 during the shaping process. The top edge of the shaping block 21 is precisely designed to accommodate the shape of the protrusion at the end of the connector plastic part 1, ensuring that the protrusion at the end of the connector plastic part 1 is not damaged by excessive pressure or improper contact during the shaping process. The depth and width of this groove are optimized so that it can effectively accommodate the protrusion at the end of the connector plastic part 1 and avoid unnecessary friction or interference during the shaping process.

[0031] Specifically, the accommodating limit groove 212 is usually a U-shaped, V-shaped or other groove-shaped structure suitable for the protruding shape of the end of the connector plastic part 1. According to the geometric characteristics of the protruding end of the connector plastic part 1, the shape and size of the accommodating limit groove 212 will be adjusted to ensure that the end of the connector plastic part 1 will not be subjected to excessive external force during the shaping process, avoiding dimensional deviation or demolding difficulties caused by deformation. The provision of the accommodating limit groove 212 improves the contact stability between the shaping block 21 and the contact surface of the connector plastic part 1, ensuring the integrity of the plug-in end and the plastic part shape.

[0032] In addition, the contact surface between the accommodating limit groove 212 and the surface of the shaping block 21 is processed so that the protrusion at the end of the plastic part can be stably placed in the groove and can prevent displacement caused by shrinkage after cooling of the plastic part, thereby ensuring the stability of the end shape during the shaping process. Through the design of the accommodating limit groove 212, the shape of the end of the connector plastic part 1 is effectively constrained, and the shape after cooling is more precise, thereby improving the quality consistency and production yield of the final product.

[0033] like Figure 1As shown, further, the cooling device 3 includes an air outlet 31 for blowing a cooling airflow in a directional manner to the plastic part fixing area of ​​the fixing device. The cooling device 3 is arranged on one side or above the material placement table 2, and can guide the directional airflow to the cooling channel formed on the outside of each group of shaping blocks 21 through one or more groups of air outlets 31. The arrangement of the shaping blocks 21 and the design of the operating gap 24 between the fixing devices enable the cooling airflow to be concentrated on the key parts of the plug-in end of the connector plastic part 1, thereby achieving efficient and uniform heat dissipation.

[0034] On the whole, the loading platform 2 provides an installation base for each component, the base 22 is embedded with it and forms a highly protruding area in the vertical direction, the shaping block 21 is fixed on it to realize the fitting constraint of the plug-in end, and the cooling device 3 uses the cooling channel as the wind path to evenly distribute the directional airflow to the shaping area, forming a stable cooling and shaping process closed loop between multiple components. This structural layout not only ensures the efficiency and controllability of the cooling process, but also effectively improves the dimensional consistency and yield rate of the connector plastic part 1, reducing the need to rely on mold shaping or secondary processing.

[0035] Preferably, the auxiliary shaping device for the connector plastic part 1 also includes a control device 4. The control device 4 is interconnected with the cooling device 3 through an electrical connection, and is internally provided with a timer for measuring the auxiliary shaping time of the connector plastic part 1 and a control module for triggering the start and stop of the cooling device 3. In this embodiment, the control device 4 adopts digital timing and microprocessor control technology, and its timer module can accurately measure the cooling cycle, while the control module automatically outputs the start and stop signal through the pre-set parameters to achieve the state adjustment of the cooling device 3. As a result, the entire cooling process can be precisely time-controlled in structure to ensure that each cycle meets the design requirements, thereby avoiding the problem of uneven heat dissipation caused by the cooling time error, and further ensuring the stability of the size and shape of the connector plastic part 1 during the cooling and shaping process.

[0036] like Figure 2 and Figure 3 As shown, the bearing surface 221 is also provided with a lifting drive mechanism 23 connected to the control device 4. Specifically, the base 22 is provided with a lifting opening 222 that penetrates the bearing surface 221, and the shaping block 21 is mechanically linked with the lifting drive mechanism 23 through the opening. Furthermore, the lifting drive mechanism 23 is closely matched with the bearing surface 221 of the base 22. During the shaping process, when a certain pressure is generated due to the shrinkage of the plastic part, the mechanism can automatically adjust the height of the shaping block 21, and smoothly separate the shaped connector plastic part 1 from the shaping block 21, thereby avoiding the plastic part from being stuck or damaged during demolding, and significantly improving the yield rate in the production process.

[0037] In the entire equipment layout, multiple groups of fixtures are provided on the material placement table 2. Two groups of shaping blocks 21 are arranged on the base 22 of each group of fixtures. The structural design allows the two groups of shaping blocks 21 on the same base 22 to be arranged compactly without interfering with each other, making it convenient for operators to use both hands to simultaneously pick up and place the connector plastic parts 1 processed on the fixtures. The fixtures are aligned through a preset operating gap 24 to form a cooling channel arranged in a straight line. This channel design not only provides a smooth flow space for the cooling airflow, but also leaves enough tolerance area to avoid mutual interference between adjacent plastic parts and enable shaping and heat dissipation to be carried out evenly.

[0038] The air outlet 31 of the cooling device 3 is strip-shaped, and its central axis is parallel to the cooling channel. This structure ensures that the wind force center of the cooling airflow can evenly act on each fixture in the cooling channel, so that the connector plastic parts 1 on both sides of the channel are subjected to a consistent cooling effect, thereby further ensuring the uniformity of cooling and shaping and the consistency of the finished product quality.

[0039] Through the precise structure and mutual cooperation between the above components, this embodiment realizes the intelligence and automation of the shaping equipment. The control device 4 adjusts the cooling time and the lifting drive together, ensuring that the connector plastic part 1 always maintains an ideal state during the cooling process, and also makes the overall operation of the equipment more convenient and efficient, thereby greatly improving the production efficiency and product yield.

[0040] An independently arranged lifting drive mechanism 23 is provided in the base 22 of each set of fixing devices, and the lifting drive mechanism 23 is connected to the shaping block 21 on the corresponding base 22. In this embodiment, the lifting drive mechanism 23 is specifically described by taking a cylinder drive as an example, and the cylinder is vertically arranged below the base 22, and is connected to the bottom of the shaping block 21 through a piston rod, and the cylinder body is fixedly connected to the lower surface of the base 22 by threaded fastening or positioning pin insertion, so as to ensure the guiding stability and repeated action accuracy during the lifting process.

[0041] In order to further ensure the vertical accuracy of the lifting movement of the shaping block 21, parallel guide columns can be provided on both sides of the cylinder, and rolling or sliding sleeves are provided on the guide columns, so that the shaping block 21 can move stably along the opening axis direction of the bearing surface 221 under the push of the cylinder, avoiding lateral shaking or jamming, and improving the smoothness of the demoulding action and the repeatability of the position.

[0042] The control device 4 is electrically connected to each set of lifting drive mechanisms 23 and has the ability to independently control each set of lifting drive mechanisms 23. Specifically, the control device 4 receives real-time pressure data from the pressure sensor 211 disposed on the outer surface of the shaping block 21 to determine the deformation state and stress release of the plug-in end of the connector plastic part 1 during the shaping process; when the pressure data of a certain set of shaping blocks 21 is stably within the preset threshold range and lasts for a set period of time, the control device 4 will automatically issue a descending command to drive the corresponding cylinder to move the shaping block 21 to the preset position in the bearing surface 221, complete the shaping process, and start cooling or demolding operations. In this way, each set of fixing devices can make autonomous judgments and responses based on its current state, ensuring that when the entire equipment is operating at multiple stations, the lifting rhythms of each shaping unit do not interfere with each other and are precisely coordinated, greatly reducing the risk of plastic part deformation or misoperation due to inconsistent synchronization.

[0043] It is worth noting that, although the present embodiment uses cylinder drive as the preferred structure of the lifting drive mechanism 23, the present invention is not limited to this. The lifting drive mechanism 23 can also be implemented by other mechanical drive methods such as electric push rods, ball screw + stepper motor combination, hydraulic cylinder, etc. The specific structure selection can be flexibly set according to the process space, cost budget and maintenance convenience. In addition, under the condition of sensorless configuration, the control device 4 can also preset a manual operation channel, and the operator manually triggers each group of lifting actions through the control panel, or performs group operations based on manual judgment based on the timer data to adapt to the application environment of non-automated production lines or low-cost solutions.

[0044] like Figure 1 As shown, further, in this embodiment, the auxiliary shaping device of the connector plastic part 1 also includes: The cabinet 5 is arranged on one side of the material placement table 2 and is connected to the material placement table 2 to form an L-shaped overall structure. The arrangement of the cabinet 5 not only makes the equipment structure more compact, but also facilitates the integration and maintenance of the cooling device 3. Specifically, a cooling function module is integrated in the cabinet 5, and the cooling airflow is blown directionally to the plastic part fixing area of ​​the fixing device through the air outlet 31 arranged on the side wall of the cabinet 5. This design ensures that the cooling airflow can act more stably and concentratedly on the molding area of ​​the connector plastic part 1, avoiding the dispersion of the cooling airflow, thereby effectively improving the cooling efficiency and molding consistency. There is no gap at the connection between the cabinet 5 and the material placement table 2, ensuring that the equipment maintains a high degree of stability during use.

[0045] Multiple groups of timing indicator lights 6, each group of timing indicator lights 6 is connected to the signal of the timer, and these indicator lights correspond one by one to the base 22 on the loading platform 2. Specifically, each group of timing indicator lights 6 is connected to the corresponding shaping unit fixture, and the state of the indicator lights will change dynamically according to the progress of the cooling time. The timing indicator lights 6 provide real-time feedback on the cooling state of each shaping unit by changing the light color or flashing frequency. For example, when the cooling time is approaching, the indicator lights will be displayed with a faster flashing frequency to remind the operator that the shaping unit is about to enter the cooling stage or demoulding operation. Since each group of timing indicator lights 6 is relative to the respective shaping unit fixtures, the operator can directly observe and judge the cooling state of each group of shaping units, ensure the timeliness and accuracy of the cooling operation, and avoid product deformation or defectiveness due to delays or misoperations.

[0046] The operation panel 41 is integrated into the side wall of the cabinet 5 and is connected to the control device 4 through an electrical connection, allowing the operator to fully control the equipment. The operation panel 41 is provided with a plurality of function buttons and display screens. Through these control buttons, the operator can independently adjust the cooling time of each shaping unit, start the cooling device 3, control the lifting and lowering of the shaping block 21, and other operations. The electrical connection between the operation panel 41 and the control device 4 ensures that the operator's settings can be reflected in the operating status of the equipment in real time, thereby improving the accuracy and convenience of the equipment operation. The position design of the operation panel 41 facilitates the operator to operate quickly, reduces unnecessary operation steps, and improves work efficiency.

[0047] In summary, the cabinet 5, the material placement table 2, the timing indicator light 6 and the operation panel 41 cooperate with each other to form the core control system of the equipment. The cabinet 5 provides a reasonable layout space for the cooling device 3 and effectively guides the cooling airflow; the timing indicator light 6 cooperates with the shaping device on the material placement table 2 to provide real-time feedback to the operator to ensure that the cooling time of each shaping unit is accurate; the operation panel 41 serves as a centralized control interface to ensure the coordination and smoothness of various equipment operations. The close cooperation of various components makes the cooling of the connector plastic part 1 more uniform and efficient during the shaping process, thereby improving the consistency and yield rate of the product.

[0048] like Figure 7 As shown, a connector plastic part 1 is also provided in this embodiment. The connector plastic part 1 includes two U-shaped plug-in end interfaces 11 , and a U-shaped gap is provided between the two plug-in end interfaces 11 .

[0049] Another embodiment of the present invention provides a method for preparing a connector plastic part 1, comprising the following steps: Step 1: The connector plastic part 1 after injection molding is transferred to the molding equipment First, the operator takes the molded connector plastic part 1 out of the injection molding machine and carefully places it on the fixture on the material placement table 2. At this time, the timing device automatically starts timing and records the time of the cooling process. The operator ensures that the plug-in end of the connector plastic part 1 is accurately sleeved on the outer side of the guide structure of the shaping block 21, so that the inner wall of the plug-in end is completely in contact with the outer surface of the guide structure of the shaping block 21.

[0050] Step 2: Start the cooling device 3 to cool When the connector plastic part 1 is stably placed in the shaping block 21, the operator starts the cooling device 3, and the cooling airflow is blown to the plug-in end area of ​​the connector plastic part 1 through multiple air outlets 31. At this time, the cooling airflow begins to evenly dissipate heat from the connector plastic part 1 to ensure the high efficiency of the cooling process. The operator can observe the cooling airflow distribution on both sides of the cooling channel to ensure that the airflow evenly covers the key parts of the connector plastic part 1.

[0051] Step 3: Control the lifting and lowering of the shaping block 21 As the cooling progresses, the lifting drive mechanism 23 starts to work. During the cooling process, when the control device 4 detects the pressure state of the connector plastic part 1 in the shaping block 21, the pressure sensor 211 provides real-time data to determine the cooling state of the plastic part. When the pressure data is within the preset threshold range and lasts for a period of time, the control device 4 automatically issues an instruction, and the lifting drive mechanism 23 slowly moves the shaping block 21 downward to separate the connector plastic part 1 from the shaping block 21. The operator can manually trigger the lifting operation through the operation panel 41, or rely on the automatic control system to accurately control the lifting speed of the shaping block 21.

[0052] Step 4: Demolding and Inspection When the cooling time reaches the set time, the operator can check the status of the timing indicator light 6 through the operation panel 41 to confirm that the cooling process has been completed. At this time, the control device 4 sends a descending command to drive the lifting mechanism to move the shaping block 21 downward, and smoothly remove the cooled connector plastic part 1 from the shaping block 21. The operator takes out the connector plastic part 1 and checks whether the connector plastic part 1 meets the size requirements and appearance standards. If there is any deformation or defect, the connector plastic part 1 will be returned for reshaping.

[0053] Step 5: Finish the shaping and prepare for the next batch After the connector plastic part 1 is demoulded, the operator transfers it to the next process. The timing device on the equipment will automatically reset and start preparing to process the next batch of connector plastic parts 1. The operator can continue to operate the equipment or adjust the cooling time according to the production plan to accommodate different types of connector plastic parts 1.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connector plastic part auxiliary shaping device, used for auxiliary shaping in the connector plastic part production process, characterized in that: include: A material placement table, carrying the connector plastic part; A fixing device is arranged on the material placing table, comprising a shaping block and a base, wherein the base is provided with a bearing surface for bearing the connector plastic part, the shaping block extends outwardly from the bearing surface to form a guiding structure, and the outer surface of the shaping block matches the inner wall contour of the plug-in end of the connector plastic part to limit the inward contraction and deformation of the plug-in end of the connector plastic part; The cooling device comprises an air outlet for blowing cooling airflow in a direction toward the plastic part fixing area of ​​the fixing device.

2. The connector plastic part auxiliary shaping device according to claim 1, characterized in that: The connector plastic part auxiliary shaping equipment also includes a control device, which is electrically connected to the cooling device. The control device includes a timer for measuring the connector plastic part auxiliary shaping time and a control module for triggering the start and stop of the cooling device.

3. The connector plastic part auxiliary shaping device according to claim 2, characterized in that: A lifting drive mechanism connected to the control device is arranged in the bearing surface, a lifting opening penetrating the bearing surface is arranged on the base, and the shaping block passes through the lifting opening and is connected to the lifting drive mechanism.

4. The connector plastic part auxiliary shaping device according to claim 3, characterized in that: The placing table is provided with multiple groups of fixing devices, each group of fixing devices is provided with two groups of shaping blocks on the base, and an operating gap is provided between the two groups of shaping blocks, and the operating gaps of all the fixing devices are aligned along a preset direction to form a linearly arranged cooling channel; The air outlet is strip-shaped, and the central axis is parallel to the cooling channel, so that the wind force center of the cooling airflow acts on the cooling channel.

5. The connector plastic part auxiliary shaping device according to claim 4, characterized in that: An independently arranged lifting and driving mechanism is arranged in the base of each set of fixing devices, and the lifting and driving mechanism is connected to the shaping block on the corresponding base; The control device independently controls the lifting action of each group of lifting drive mechanisms.

6. The connector plastic part auxiliary shaping device according to claim 5, characterized in that: The connector plastic part auxiliary shaping equipment also includes: A cabinet is arranged on one side of the material placement table, and a side wall of the cabinet adjacent to the fixing device is provided with an air outlet of a cooling device; A plurality of groups of timing indicator lights, each group of timing indicator lights is connected to the timer signal and corresponds to a group of fixtures; the display mode of the timing indicator lights is dynamically switched according to the timing stage of the timer to independently display the cooling time progress of the connector plastic parts on the corresponding fixtures; The control device further comprises an operation panel, which is integrated into a side wall of the cabinet and is communicatively connected with the control device.

7. The connector plastic part auxiliary shaping device according to claim 5, characterized in that: A pressure sensor is embedded inside the outer surface of the shaping block, the pressure sensor is electrically connected to the control device, and the detection surface of the pressure sensor is flush with the outer surface of the shaping block, and is used to detect the radial pressure applied by the plug-in end of the connector plastic part to the shaping block in real time; The control device is configured as follows: Receiving real-time pressure data from the pressure sensor; When the pressure data is within a preset threshold range and the continuous stabilization time reaches a set value, a descending instruction is generated and sent to a corresponding driving mechanism to drive the shaping block to move to a preset position in the bearing surface.

8. The connector plastic part auxiliary shaping device according to any one of claims 1 to 7, characterized in that: The top of the shaping block is also provided with a limiting groove for accommodating the protrusion at the end of the connector plastic part.

9. A method for preparing a connector plastic part, characterized in that: The following steps are involved: a. Injecting molten plastic into the mold to form a connector plastic part having a plug end; b. Transferring the injection molded connector plastic part to the connector plastic part auxiliary molding device according to any one of claims 1 to 8 for cooling and molding, specifically comprising: b1. The plug-in end of the connector plastic part is sleeved on the outside of the guide structure of the shaping block so that the inner wall of the plug-in end fits the outer surface of the guide structure; b2. Start the cooling device, blowing cooling air through the air outlet to the fixed area of ​​the plastic part; b3. When the cooling time reaches the preset time, remove the connector plastic part from the molding block.

10. A connector plastic part, comprising a plug-in end interface, characterized in that: The connector plastic part is manufactured by the manufacturing method as claimed in claim 9.

Citation Information

Patent Citations

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    CN214111231U

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    CN215203428U

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