Automatic flanging device for low-pressure injection back-packing

Abstract

The utility model discloses a kind of automatic flanging devices for low-pressure injection molding reverse packing, it includes base subassembly, flanging execution mechanism and auxiliary adjusting mechanism.Flanging execution mechanism is driven rack and pinion transmission to realize accurate movement by servo motor, flanging roller surface is equipped with rubber layer and exhaust hole, effectively promote flanging quality;Elastic tablet in auxiliary adjusting mechanism adapts to different thickness materials, enhances universality;Detection module monitors in real time and dynamically adjusts flanging process, improves accuracy.In addition, dust collection chamber and cooling module optimize operating environment and shaping effect.The present application can realize flanging automation, high efficiency and precision, solve the problem of low efficiency and poor accuracy of prior art.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing and automation equipment technology, and in particular to an automatic flanging device for low-pressure injection molding reverse wrapping. Background Technology

[0002] In low-pressure injection molding reverse wrapping, the flanging operation is a crucial step in ensuring the quality of the product's edge molding. This process is particularly important for injection molded parts requiring high precision and efficiency, as it not only affects the product's appearance but also directly relates to its sealing properties and structural strength. To meet production demands, the flanging operation needs to be completed quickly and accurately, which places high demands on the process equipment.

[0003] Since flanging operations typically involve handling flexible or thermoplastic materials, existing flanging devices mostly rely on manual or semi-automatic operation. However, in practice, manual intervention can easily lead to uneven flanging results and low production efficiency, making it difficult to meet the demands of large-scale production. Meanwhile, semi-automatic equipment may experience inaccurate positioning or unstable force control when handling complex shapes, affecting the final molding quality. Therefore, existing flanging methods have limitations in terms of efficiency and precision, necessitating a more efficient and stable solution. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic flanging device for low-pressure injection molding reverse wrapping, which solves the problems mentioned in the background art.

[0005] This invention is implemented as follows: an automatic flanging device for low-pressure injection molding reverse wrapping includes a base assembly, a flanging actuator, and an auxiliary adjustment mechanism. The specific structure is as follows:

[0006] The base assembly includes a horizontally positioned worktable, on which a support column is fixedly connected. A crossbeam is bolted to the top of the support column. One end of the crossbeam is fixedly connected to a drive housing, and the other end is hinged to a pair of limit guide rails via a pin. A flanging actuator is slidably connected between the limit guide rails. The flanging actuator is connected to the output end of the drive housing via a gear and rack transmission. A servo motor is installed inside the drive housing. The output shaft of the servo motor is connected to the drive gear of the gear and rack transmission mechanism via a coupling, thereby driving the flanging actuator to reciprocate along the limit guide rails.

[0007] The flanging actuator includes a main frame, within which a flanging roller is rotatably connected. The outer surface of the flanging roller is covered with a rubber layer, on which multiple evenly distributed vent holes are formed. Both ends of the flanging roller are fixed to the side plates of the main frame via bearing seats. One of the bearing seats is connected to a geared motor via a belt drive. The geared motor is fixedly mounted on the outer side wall of the main frame. The rotation direction of the flanging roller is opposite to the movement direction of the flanging actuator to enhance the flanging effect.

[0008] The auxiliary adjustment mechanism is located below the flanging actuator. The auxiliary adjustment mechanism includes a pair of parallel guide rods, which are fixed to the worktable by a threaded connection. An adjustment plate is slidably connected between the guide rods. A rectangular slot is opened in the middle of the adjustment plate, and an elastic pressure plate is embedded in the rectangular slot. The elastic pressure plate is connected to the bottom of the adjustment plate by a spring, and the top of the elastic pressure plate contacts the lower surface of the flanging roller to apply appropriate preload to the flanging material.

[0009] Furthermore, a detection module is fixedly connected to the main frame of the flanging actuator. The detection module includes an infrared sensor and a pressure sensor. The infrared sensor is used to monitor the edge position of the flanging material in real time, and the pressure sensor is used to detect the contact pressure between the flanging roller and the material. The detection module is connected to the controller via a data cable. The controller adjusts the speed of the servo motor and the output torque of the reduction motor according to the detection signal to achieve dynamic adjustment of the flanging process.

[0010] Furthermore, a dust collection chamber is provided below the workbench, and an air intake is provided at the top of the dust collection chamber. The air intake is connected to the exhaust hole on the flanging roller through a pipe. A filter screen and an exhaust fan are provided inside the dust collection chamber. The exhaust fan is fixed to the side wall of the dust collection chamber with bolts, and the filter screen is fixed inside the dust collection chamber with clips. It is used to collect debris and dust generated during the flanging process.

[0011] Furthermore, a cooling module is also provided on the main frame of the flanging actuator. The cooling module includes a cooling air duct and nozzles. One end of the cooling air duct is connected to an external compressed air source through a quick connector, and the other end is connected to multiple nozzles through a branch pipe. The nozzles are evenly distributed above the flanging roller and are used to quickly cool and shape the material after flanging.

[0012] Furthermore, a feeding mechanism is provided on one side of the worktable. The feeding mechanism includes a feeding roller and a guide plate. The feeding roller is fixed to the worktable by a bearing seat, and the guide plate is fixed to the bottom of the feeding roller by bolts. It is used to guide the flanging material into the working area of ​​the flanging actuator. The rotation direction of the feeding roller is consistent with the movement direction of the flanging actuator to reduce the friction between the material and the worktable.

[0013] The automatic flanging device for low-pressure injection molding reverse wrapping provided by this utility model has the following features: the flanging actuator is driven by a servo motor through a gear and rack transmission mechanism, enabling precise reciprocating movement and ensuring the stability of the flanging process; the rubber layer and vent design on the surface of the flanging roller effectively expel air between the material and the roller during the flanging process, avoiding air bubble residue and improving flanging quality; the elastic pressure plate in the auxiliary adjustment mechanism applies appropriate pre-tightening force to the material, adapting to materials of different thicknesses and enhancing the versatility of the device; the introduction of the detection module allows the flanging process to be dynamically adjusted based on real-time data, thereby improving flanging accuracy; the design of the dust collection chamber and cooling module further optimizes the flanging environment, reduces dust pollution, and improves the shaping effect after flanging. In summary, this utility model, through the coordinated cooperation between various components, achieves automation, high efficiency, and precision in the flanging process, solving the problems of low efficiency and poor precision existing in the prior art. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a magnified view of a portion of the flange actuator;

[0016] The attached diagram is labeled as follows: 1. Base assembly; 2. Flanging actuator; 3. Auxiliary adjustment mechanism; 4. Worktable; 5. Support column; 6. Crossbeam; 7. Drive housing; 8. Limit guide rail; 9. Flanging roller; 10. Elastic pressure plate; 11. Dust collection chamber; 12. Cooling module. Detailed Implementation

[0017] This utility model relates to an automatic flanging device for low-pressure injection molding reverse wrapping, combined with the attached... Figure 1 To be continued Figure 2 The specific embodiments of this utility model are described in detail below. The device mainly includes a base assembly 1, a flanging actuator 2, and an auxiliary adjustment mechanism 3. The structure and connection relationships of each part are as follows. The base assembly 1 consists of a horizontally arranged worktable 4 and a support column 5 fixedly connected to the worktable 4. A crossbeam 6 is fixedly installed on the top of the support column 5 by bolts. One end of the crossbeam 6 is fixedly connected to a drive housing 7, and the other end is hinged to a pair of limit guide rails 8 by a pin. The flanging actuator 2 is slidably connected between the limit guide rails 8. The flanging actuator 2 is connected to the output end of the drive housing 7 through a gear and rack transmission. A servo motor is installed inside the drive housing 7. The output shaft of the servo motor is connected to the driving gear of the gear and rack transmission mechanism through a coupling, thereby driving the flanging actuator 2 to reciprocate along the limit guide rails 8. The sliding connection design of the limit guide rails 8 ensures that the flanging actuator 2 can move on a precise track, while the fixed connection of the crossbeam 6 provides stable support for the entire device.

[0018] The flanging actuator 2 includes a main frame, within which a flanging roller 9 is rotatably connected. The outer surface of the flanging roller 9 is covered with a rubber layer, on which multiple evenly distributed vent holes are formed. Both ends of the flanging roller 9 are fixed to the side plates of the main frame via bearing seats. One bearing seat is connected to a geared motor via a belt drive, and the geared motor is fixedly mounted on the outer wall of the main frame. The rotation direction of the flanging roller 9 is opposite to the movement direction of the flanging actuator 2. This design allows the flanging roller 9 to apply high pressure to the material surface, thereby achieving the flanging operation. A detection module is fixedly connected to the main frame of the flanging actuator 2. The detection module includes an infrared sensor and a pressure sensor. The infrared sensor monitors the edge position of the material in real time, and the pressure sensor detects the contact pressure between the flanging roller 9 and the material. The detection module is connected to a controller via a data cable. The controller adjusts the speed of the servo motor and the output torque of the geared motor based on the detection signals, thereby achieving dynamic adjustment of the flanging process. A cooling module 12 is also provided on the main frame of the flanging actuator 2. The cooling module 12 includes a cooling air duct and nozzles. One end of the cooling air duct is connected to an external compressed air source through a quick connector, and the other end is connected to multiple nozzles through a branch pipe. The nozzles are evenly distributed above the flanging roller 9 and are used to quickly cool and shape the material after flanging.

[0019] The auxiliary adjustment mechanism 3 is located below the flanging actuator 2. The auxiliary adjustment mechanism 3 includes a pair of parallel guide rods, which are fixed to the worktable 4 by threaded connection. An adjustment plate is slidably connected between the guide rods. A rectangular slot is formed in the center of the adjustment plate, and an elastic pressure plate 10 is embedded in the slot. The elastic pressure plate 10 is connected to the bottom of the adjustment plate by a spring, and its top contacts the lower surface of the flanging roller 9 to apply appropriate preload to the flanging material. The parallel arrangement of the guide rods ensures that the adjustment plate can move smoothly in the vertical direction, while the design of the elastic pressure plate 10 allows it to adapt to materials of different thicknesses, thereby enhancing the versatility of the device.

[0020] A dust collection chamber 11 is located below the worktable 4. An air intake is located at the top of the dust collection chamber 11, and the air intake is connected to the exhaust port on the flanging roller 9 via a pipe. A filter and an exhaust fan are installed inside the dust collection chamber 11. The exhaust fan is bolted to the side wall of the dust collection chamber 11, and the filter is secured inside the dust collection chamber 11 with clips. This system collects debris and dust generated during the flanging process. A feeding mechanism is located on one side of the worktable 4. The feeding mechanism includes a feeding roller and a guide plate. The feeding roller is fixed to the worktable 4 via a bearing seat, and the guide plate is bolted to the bottom of the feeding roller to guide the flanging material into the working area of ​​the flanging actuator 2. The rotation direction of the feeding roller is the same as the movement direction of the flanging actuator 2. This design reduces the friction between the material and the worktable 4, thereby improving feeding efficiency.

[0021] In actual operation, the material to be flanged is first placed on the guide plate of the feeding mechanism. The feeding roller guides the material to the working area of ​​the flanging actuator 2 by rotating. The flanging actuator 2 moves along the limit guide rail 8 under the drive of the servo motor, and the flanging roller 9 rotates under the drive of the reduction motor, with its rotation direction opposite to the movement direction of the flanging actuator 2. The rubber layer of the flanging roller 9 contacts the material surface and discharges the air between the material and the roller through the exhaust hole to avoid air bubble residue. The elastic pressure plate 10 in the auxiliary adjustment mechanism 3 applies an appropriate pre-tightening force to the material to ensure that the flanging operation can be carried out stably on materials of different thicknesses. The infrared sensor of the detection module monitors the edge position of the material in real time, the pressure sensor detects the contact pressure between the flanging roller 9 and the material, and the controller adjusts the speed of the servo motor and the output torque of the reduction motor according to the detection signal, thereby realizing the dynamic adjustment of the flanging process. After the flanging is completed, the nozzles of the cooling module 12 rapidly cool and shape the flanged material, while the dust collection chamber 11 collects debris and dust generated during the flanging process through an exhaust fan and a filter, thereby optimizing the flanging environment. The entire device achieves automated operation of the flanging process through the coordinated cooperation between its various components.

[0022] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0023] First, the thermoplastic material to be flanged is placed on the guide plate of the feeding mechanism. The feeding roller is fixed to one side of the worktable 4 by a bearing seat and rotates under the drive of a motor, with its rotation direction consistent with the movement direction of the flanging actuator 2. This design reduces the friction between the material and the worktable 4, thereby ensuring that the material smoothly enters the working area of ​​the flanging actuator 2. The surface of the feeding roller is provided with an anti-slip rubber layer to increase the coefficient of friction with the material, preventing the material from shifting during conveying and thus improving feeding accuracy.

[0024] Subsequently, the flanging actuator 2 begins operation. A servo motor is installed inside the drive housing 7, and its output shaft is connected to the drive gear of the rack and pinion transmission mechanism via a coupling, driving the flanging actuator 2 to reciprocate along the limit guide rail 8. The design of the limit guide rail 8 ensures that the flanging actuator 2 can run on a precise track, while the crossbeam 6 is bolted to the support column 5, providing a stable support structure for the entire device. The flanging roller 9 is driven to rotate by a reduction motor, and its rotation direction is opposite to the movement direction of the flanging actuator 2. This relative motion design allows the flanging roller 9 to apply high pressure to the material surface, thereby achieving efficient flanging operation. The rubber layer on the outer surface of the flanging roller 9 not only increases the friction between it and the material but also allows air to be expelled between the material and the roller through the vent holes, preventing air bubbles from remaining and thus improving the flanging quality.

[0025] During the flanging process, the auxiliary adjustment mechanism 3 plays a crucial role. The adjustment plate achieves smooth vertical movement through the parallel arrangement of guide rods, and the elastic pressure plate 10 embedded in its rectangular slot is connected to the bottom of the adjustment plate via a spring. The top of the elastic pressure plate 10 contacts the lower surface of the flanging roller 9, applying appropriate pre-tension to the flanging material. This design can accommodate materials of different thicknesses, ensuring stable flanging operations on materials of various specifications, thereby enhancing the versatility of the device.

[0026] Meanwhile, a detection module fixedly connected to the main frame of the flanging actuator 2 monitors the flanging process in real time. An infrared sensor captures the edge position of the material being flanged, while a pressure sensor detects the contact pressure between the flanging roller 9 and the material. This data is transmitted to the controller via a data cable. The controller dynamically adjusts the speed of the servo motor and the output torque of the reduction motor based on the detection signals, thereby achieving precise control of the flanging process. For example, when the infrared sensor detects that the material edge position deviates from the predetermined path, the controller adjusts the speed of the servo motor, changing the moving speed of the flanging actuator 2 to correct the material's positional deviation. Similarly, when the pressure sensor detects that the contact pressure exceeds the set range, the controller adjusts the output torque of the reduction motor, thereby changing the rotational force of the flanging roller 9 to ensure a uniform flanging effect.

[0027] After flanging is completed, the cooling module 12 is activated. Nozzles are evenly distributed above the flanging roller 9 and connected to an external compressed air source via cooling ducts to rapidly cool and shape the flanged material. The cooling ducts are connected to branch lines via quick-connect fittings to ensure that the cooling gas is evenly distributed to each nozzle, thereby improving cooling efficiency. This design effectively shortens the cooling time of the flanged material, avoids deformation problems caused by insufficient cooling, and further improves the forming quality of the product.

[0028] Furthermore, the dust collection chamber 11 is connected to the exhaust port on the flanging roller 9 via an air intake. The exhaust fan draws debris and dust generated during the flanging process into the dust collection chamber 11. A filter screen is secured inside the dust collection chamber 11 with clips to collect these impurities and prevent them from spreading into the working environment. This design not only optimizes the flanging environment but also reduces the burden of subsequent cleaning work and improves production efficiency.

[0029] In summary, this invention automates the flanging process through the coordinated operation of its components. The feeding mechanism ensures the material enters the working area smoothly, the flanging actuator 2 achieves efficient flanging through precise control of servo motors and geared motors, the auxiliary adjustment mechanism 3 provides pre-tightening force suitable for materials of different thicknesses, the detection module enables dynamic adjustment, and the cooling module 12 and dust collection chamber 11 are responsible for rapid cooling and shaping and optimizing the working environment, respectively. Through the orderly operation of the above steps, the entire device solves the problems of low efficiency and poor precision in existing technologies, significantly improving flanging quality and production efficiency.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic flanging device for low-pressure injection molding reverse wrapping, comprising: A base assembly (1), on which a flange-flanging actuator (2) and an auxiliary adjustment mechanism (3) are provided, characterized in that it further includes: The worktable (4) is horizontally set and fixedly connected to the support column (5). The top of the support column (5) is fixedly installed with a crossbeam (6) by bolts. One end of the crossbeam (6) is fixedly connected to the drive box (7), and the other end is hinged to a pair of limit guide rails (8) by a pin. The limit guide rails (8) are slidably connected to the flange actuator (2). The flange actuator (2) is connected to the output end of the drive box (7) through a gear and rack transmission. A servo motor is set inside the drive box (7). The output shaft of the servo motor is connected to the active gear of the gear and rack transmission mechanism through a coupling. The flanging actuator (2) includes a main frame, and a flanging roller (9) is rotatably connected inside the main frame. A rubber layer is provided on the outer surface of the flanging roller (9), and multiple evenly distributed exhaust holes are opened on the rubber layer. The two ends of the flanging roller (9) are respectively fixed to the two side plates of the main frame through bearing seats. One of the bearing seats is connected to the geared motor through belt drive. The geared motor is fixedly installed on the outer side wall of the main frame. The auxiliary adjustment mechanism (3) is located below the flanging actuator (2). The auxiliary adjustment mechanism (3) includes a pair of parallel guide rods. The guide rods are fixed on the worktable (4) by threaded connection. An adjustment plate is slidably connected between the guide rods. A rectangular slot is opened in the middle of the adjustment plate. An elastic pressure plate (10) is embedded in the rectangular slot. The elastic pressure plate (10) is connected to the bottom of the adjustment plate by a spring. The top of the elastic pressure plate (10) is in contact with the lower surface of the flanging roller (9).

2. The automatic flanging device for low-pressure injection molding reverse wrapping according to claim 1, characterized in that, A detection module is fixedly connected to the main frame of the flanging actuator (2). The detection module includes an infrared sensor and a pressure sensor. The infrared sensor is used to monitor the edge position of the flanging material in real time, and the pressure sensor is used to detect the contact pressure between the flanging roller (9) and the material. The detection module is connected to the controller via a data cable.

3. The automatic flanging device for low-pressure injection molding reverse wrapping according to claim 1, characterized in that, A dust collection chamber (11) is provided below the workbench (4). An air inlet is opened at the top of the dust collection chamber (11). The air inlet is connected to the exhaust hole on the flanging roller (9) through a pipe. A filter screen and an exhaust fan are installed in the dust collection chamber (11). The exhaust fan is fixed to the side wall of the dust collection chamber (11) by bolts. The filter screen is fixed inside the dust collection chamber (11) by clips.

4. The automatic flanging device for low-pressure injection molding reverse wrapping according to claim 1, characterized in that, A cooling module (12) is also provided on the main frame of the flanging actuator (2). The cooling module (12) includes a cooling air duct and nozzles. One end of the cooling air duct is connected to an external compressed air source through a quick connector, and the other end is connected to multiple nozzles through a branch pipe. The nozzles are evenly distributed above the flanging roller (9).

5. An automatic flanging device for low-pressure injection molding reverse wrapping according to claim 1, characterized in that, A feeding mechanism is provided on one side of the worktable (4). The feeding mechanism includes a feeding roller and a guide plate. The feeding roller is fixed on the worktable (4) by a bearing seat, and the guide plate is fixed below the feeding roller by bolts.

6. An automatic flanging device for low-pressure injection molding reverse wrapping according to claim 5, characterized in that, The rotation direction of the feeding roller is consistent with the movement direction of the flanging actuator (2).

7. An automatic flanging device for low-pressure injection molding reverse wrapping according to claim 1, characterized in that, The rotation direction of the flanging roller (9) is opposite to the movement direction of the flanging actuator (2).

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