A mold provided with an in-mold compression device

Abstract

The application relates to a mold provided with an in-mold compression device, and relates to the technical field of injection molds. The mold comprises a fixed mold plate and a movable mold plate. A forming cavity is formed between the fixed mold plate and the movable mold plate. A compression sliding groove is arranged in the movable mold plate and is in communication with the forming cavity. An inner compression mechanism is arranged on the movable mold plate. The inner compression mechanism comprises a compression assembly and a driving assembly. The compression assembly comprises a compression plate. The compression plate is in plug-in cooperation with the compression sliding groove and is in sliding connection with the inner wall of the compression sliding groove. The driving assembly comprises a driving motor. The output shaft of the driving motor is in threaded connection with the compression plate. The driving motor can drive the compression plate to slide into the forming cavity. Through the driving mode of the driving motor, the positioning precision of the compression plate can be improved by controlling the output precision of the motor, so that the precision of the injection-molded product can be improved.

Description

Technical Field

[0001] This application relates to the technical field of injection molds, and in particular to a mold equipped with an in-mold compression device. Background Technology

[0002] To increase gear manufacturing speed, injection molding is currently used to produce gears, enabling the rapid production of large quantities of standard-sized gears. Compared to common machining methods such as milling, profile grinding, gear hobbing, gear shaving, shaping, and generative grinding, injection molding significantly improves production speed. Furthermore, for gears with complex structures, such as multi-tooth, thin-walled, and irregularly shaped gears, injection molding only requires the design of a corresponding mold for rapid production.

[0003] Currently, in the injection molding process of gears, the injection molding machine needs to hold pressure near the end of the injection process. During this holding pressure, the pressure loss is small near the injection port, so the molded product near the injection port receives a higher injection pressure. Conversely, the pressure loss is large further away from the injection port, so the molded product further away receives a lower injection pressure. Therefore, the different injection pressures experienced by the same molded product result in inconsistent shrinkage, leading to deformation after injection molding. This significantly impacts the precision of the injection-molded gears.

[0004] To address the aforementioned issues, existing injection molds are equipped with in-mold compression devices. These devices are typically driven by hydraulic cylinders, which linearly push a wedge block, causing a sliding block at the top of the wedge block to move vertically. This allows the top of the sliding block to insert into the molding cavity of the mold, thereby pressurizing the injection-molded product and improving the uniformity of pressure on different parts of the product.

[0005] However, with the above method, the control precision of the hydraulic cylinder is limited, and the sliding block is subjected to both vertical and horizontal forces during the movement of the wedge block. This results in the hydraulic cylinder driving the wedge block to have a large load, which makes the in-mold compression device prone to further reduction in the precision of the injection molded product due to wear of the sliding block. Summary of the Invention

[0006] This application provides a mold equipped with an in-mold compression device, the purpose of which is to improve the processing accuracy of the mold.

[0007] The mold with an in-mold compression device provided in this application adopts the following technical solution:

[0008] A mold equipped with an in-mold compression device includes a fixed mold plate and a movable mold plate, a forming cavity is formed between the fixed mold plate and the movable mold plate, and a compression groove is provided in the movable mold plate, the compression groove being in communication with the forming cavity.

[0009] The moving template is provided with an internal compression mechanism, which includes a compression component and a driving component.

[0010] The compression assembly includes a compression plate, which is inserted into the compression groove and slidably connected to the inner wall of the compression groove.

[0011] The drive assembly includes a drive motor, the output shaft of which is threadedly connected to the compression plate and the drive motor is capable of driving the compression plate to slide into the molding cavity.

[0012] By adopting the above technical solution, the fixed template, the moving template, and the molding cavity between the moving template and the fixed template can be configured to form a complete injection mold and realize the function of the injection molded product.

[0013] An internal compression mechanism is provided inside the moving template. The compression plate and the compression groove on the moving template are designed to cooperate so that the compression plate can slide into the molding cavity within the compression groove. Thus, the compression plate compresses the product in the molding cavity during product injection molding.

[0014] The drive assembly uses a drive motor, and the output shaft of the drive motor is connected to the compression plate by a thread. Therefore, when the drive motor rotates, the threaded connection can convert the rotation of the output shaft into the axial movement of the compression plate along the output shaft. By controlling the output of the drive motor, the movement distance of the compression plate can be controlled. Therefore, using a drive motor to drive the compression plate can improve the movement accuracy of the compression plate, thereby improving the molding accuracy of the product in the molding cavity.

[0015] Optionally, an overclocking vibration generator is mounted on the compression plate.

[0016] By adopting the above technical solution, the setting of the high-frequency vibration generator can make the compression plate generate high-frequency vibration, thereby making the product molding more compact.

[0017] Optionally, the compression assembly further includes a drive column, one end of which is rotatably connected to the compression plate, and the other end of which is coaxially connected to the drive motor;

[0018] The mold also includes an auxiliary lifting mechanism, which includes a lifting sleeve. The lifting sleeve is sleeved on the outside of the drive column and the inner wall of the lifting sleeve is threaded to the drive column. The outside of the lifting sleeve is connected to the moving template.

[0019] By adopting the above technical solution, the drive column is set to connect the compression plate and the drive motor. A lifting sleeve is sleeved on the outside of the drive column, and the inner wall of the lifting sleeve is connected to the drive column by a thread. The outside of the lifting sleeve is connected to the moving template. Thus, when the drive motor at one end of the drive column drives the drive column to rotate, the lifting sleeve allows the drive column to move along its own axial direction, and the compression plate at one end of the drive column can also move along the axial direction of the drive column.

[0020] Therefore, the combination of the lifting sleeve and the drive column enables a threaded connection between the drive motor and the compression plate, allowing the compression plate to be driven by the drive motor.

[0021] Optionally, the drive assembly further includes a gear transmission group, which includes a drive gear and is connected to the drive motor in a transmission connection.

[0022] A lifting sleeve is coaxially provided on the drive gear, and a connecting column is coaxially provided at one end of the drive column, and the connecting column is inserted into the lifting sleeve.

[0023] The inner wall of the lifting sleeve is provided with a connecting groove, and a connecting block is provided on the outer side of the connecting column. When the connecting column is inserted into the lifting sleeve, the connecting block is inserted into the connecting groove.

[0024] By adopting the above technical solution, the gear transmission group is set up so that the drive gear is used to connect the drive motor and the lifting sleeve is plugged into the connecting column. Therefore, the fitting of the lifting sleeve and the connecting column facilitates the disassembly and assembly of the drive column and the drive motor.

[0025] The connection between the connecting groove and the connecting block on the connecting column is designed to allow the side wall of the connecting block to abut against the inner side wall of the connecting groove when the connecting sleeve rotates, thus enabling the connecting sleeve to drive the connecting column to rotate synchronously.

[0026] Therefore, the drive column can be driven by the drive motor and can move along its own axis, enabling the compression plate to perform the compression function.

[0027] Optionally, the gear transmission assembly further includes a first bevel gear, a second bevel gear, a transmission gear, and a connecting shaft. The first bevel gear meshes with the second bevel gear. The first bevel gear is coaxially connected to the drive motor. The two ends of the connecting shaft are coaxially connected to the transmission gear and the second bevel gear, respectively. The transmission gear meshes with the drive gear.

[0028] By adopting the above technical solution, the matching arrangement of the first bevel gear, the second bevel gear, the transmission gear, and the connecting shaft in the gear transmission group serves two purposes: firstly, it transmits the power of the drive motor to the drive gear, thereby driving the drive column to rotate and realizing the movement of the compression plate; secondly, it can change the power output direction of the drive motor output shaft, thereby allowing the installation position of the drive motor to be adjusted according to actual requirements.

[0029] Optionally, the lifting sleeve is slidably connected to the moving template along its own axial direction;

[0030] The mold also includes a rapid drive mechanism, which includes a drive cylinder. One end of the drive cylinder is connected to the compression plate, and the drive direction of the drive cylinder is set along the sliding direction of the compression plate.

[0031] A locking component is provided between the lifting sleeve and the moving template to lock the lifting sleeve.

[0032] By adopting the above technical solution, the lifting sleeve and the moving template are slidably connected, and with the drive cylinder in the fast drive mechanism, the compression plate can move quickly in the vertical direction and be positioned.

[0033] The locking component allows for locking or unlocking between the lifting sleeve and the moving template. When the lifting sleeve is locked to the moving template, the drive motor can drive the drive column to move up and down in the vertical direction. When the lifting sleeve is unlocked from the moving template, the lifting sleeve can slide in the vertical direction, and the compression plate can be moved in the vertical direction by the drive cylinder. The drive motor cannot drive the drive column to move up and down in the vertical direction.

[0034] Therefore, locking the price allows the compression board to switch between two driving modes.

[0035] Optionally, the locking component includes a first locking groove and a second locking groove. The first locking groove is formed on the inner wall of the moving template, and the second locking groove is formed on the outer side of the moving template. The first locking groove and the second locking groove are interconnected. A locking pin is inserted into the first locking groove, and the other end of the locking pin is inserted into the second locking groove. The locking pin is slidably connected to both the inner wall of the first locking groove and the inner wall of the second locking groove.

[0036] The first locking slot is provided with a locking drive component capable of driving the locking pin to slide within the first locking slot and the second locking slot.

[0037] By adopting the above technical solution, the first locking groove and the second locking groove are interconnected, so that when the two ends of the locking pin are inserted into the first locking groove and the second locking groove respectively, the lifting sleeve and the moving template are locked; when the locking drive drives the locking pin to move completely into the first locking groove, the lock between the lifting sleeve and the moving template is released.

[0038] Optionally, the rapid drive mechanism further includes a limiting ring and a positioning component, wherein the limiting ring is coaxially connected to the drive column;

[0039] The positioning component includes a mounting base and a positioning ring. The mounting base and the positioning ring are spaced apart from each other along the axial direction of the drive column. The drive column is slidably connected to the mounting base and the positioning ring along its own axial direction.

[0040] The limiting ring is located between the positioning ring and the mounting base along its own axial direction, and the limiting ring abuts against both the positioning ring and the mounting base along its own axial direction.

[0041] By adopting the above technical solution, the cooperation between the limiting ring, the positioning ring in the positioning assembly, and the mounting seat ensures that when the limiting ring moves along its own axial direction with the drive column, that is, when the compression plate moves, the positioning ring and the mounting seat can limit the limiting ring in the direction of movement of the limiting ring, thereby limiting the compression plate and ensuring that the compression plate can be positioned accurately.

[0042] Optionally, the mounting base is provided with a clearance groove, which is opened along the axial direction of the drive column. The positioning ring is inserted into the clearance groove and slidably connected to the inner wall of the clearance groove. The positioning ring is provided with an adjustment component that can drive the positioning ring to slide in the clearance groove.

[0043] By adopting the above technical solution, the opening of the relief groove allows the positioning ring to slide along its own axis within the relief groove. Therefore, the distance between the positioning ring and the bottom of the relief groove can be adjusted by adjusting the component. Since the limiting ring is located between the positioning ring and the bottom of the relief groove, the distance that the limiting ring can move can be adjusted. Therefore, the position of the positioning ring can be finely adjusted by adjusting the component to finely adjust the accuracy of the compression plate movement, thereby enabling high-precision control of the positioning of the compression plate when the driving cylinder realizes the rapid positioning of the compression plate.

[0044] In summary, this application includes at least one of the following beneficial technical effects:

[0045] 1. This application improves the positioning accuracy of the compression plate by using a drive motor and controlling the output accuracy of the motor, thereby improving the accuracy of injection molded products.

[0046] 2. This application, by setting an overfrequency vibration generator, enables the compression plate to generate overfrequency vibration, thereby making the product molding more compact and improving the quality of injection molded products.

[0047] 3. By setting the locking component, this application enables the compression plate to be driven by either a drive motor or a drive cylinder, thus allowing the appropriate drive method to be selected according to actual needs. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of the mold in Embodiment 1 of this application.

[0049] Figure 2 This is a cross-sectional structural schematic diagram of the mold of Embodiment 1 of this application.

[0050] Figure 3 This is an exploded structural diagram of the internal compression mechanism of Embodiment 1 of this application.

[0051] Figure 4 yes Figure 3 A magnified schematic diagram of part A in the middle.

[0052] Figure 5 This is a cross-sectional structural schematic diagram of the mold of Embodiment 2 of this application.

[0053] Figure 6 yes Figure 5 A magnified schematic diagram of part B in the middle section.

[0054] Figure 7 This is a schematic diagram of the overall structure of the fast drive mechanism in Embodiment 2 of this application.

[0055] In the diagram, 1. Define the template;

[0056] 2. Moving template; 21. Compression groove;

[0057] 3. Molding cavity;

[0058] 4. Internal compression mechanism;

[0059] 41. Compression assembly; 411. Compression plate; 412. Drive column; 4121. Connecting column; 4122. Connecting block;

[0060] 42. Drive assembly; 421. Drive motor; 422. Gear transmission group; 4221. First bevel gear; 4222. Second bevel gear; 4223. Transmission gear; 4224. Drive gear; 4225. Connecting shaft; 4226. Connecting sleeve; 4227. Connecting groove;

[0061] 5. Auxiliary lifting mechanism;

[0062] 51. Lifting sleeve;

[0063] 52. Locking component; 521. First locking slot; 522. Second locking slot; 523. Locking pin;

[0064] 524. Return spring; 525. Locking drive component;

[0065] 6. Rapid drive mechanism;

[0066] 61. Limiting ring;

[0067] 62. Positioning component; 621. Positioning ring; 6211. Control plate; 622. Mounting base; 6221. Clearance groove; 6222. Connecting hole;

[0068] 63. Drive cylinder;

[0069] 64. Adjustment component; 641. Drive cylinder; 642. Drive wedge; 643. Positioning wedge; 644. Contact spring. Detailed Implementation

[0070] The following is in conjunction with the appendix Figure 1 -Appendix Figure 7 This application will be described in further detail below.

[0071] Example 1,

[0072] A mold equipped with an in-mold compression device, as shown in the reference. Figure 1 and Figure 2 It includes a fixed template 1 and a moving template 2. The fixed template 1 and the moving template 2 are connected to each other in the vertical direction, and a molding cavity 3 is provided between the moving template 2 and the fixed template 1. Therefore, the cooperation of the fixed template 1, the moving template 2 and the molding cavity 3 can realize the function of the injection mold.

[0073] Reference Figure 2 A compression groove 21 is provided on the inner wall of the side of the moving template 2 facing the fixed template 1. The compression groove 21 is opened in the vertical direction and the upper side of the compression groove 21 is connected to the forming cavity 3.

[0074] Reference Figure 2 The moving template 2 is provided with an internal compression mechanism 4, which includes a compression component 41. The compression component 41 includes a compression plate 411. The compression plate 411 is inserted into the compression groove 21 in the vertical direction, and the outer wall of the compression plate 411 is slidably connected to the inner wall of the compression groove 21 in the vertical direction.

[0075] Reference Figure 2The compression assembly 41 also includes a drive column 412, which is axially arranged in the vertical direction. The upper end of the drive column 412 is rotatably connected to the compression plate 411 via a bearing. An auxiliary lifting mechanism 5 is provided on the outside of the drive column 412. The auxiliary lifting mechanism 5 includes a lifting sleeve 51, which is sleeved on the outside of the drive column 412, and the inner wall of the lifting sleeve 51 is threadedly connected to the outer wall of the drive column 412. The outer wall of the lifting sleeve 51 is connected to the inner wall of the moving template 2. Therefore, when the drive column 412 rotates, it can achieve vertical lifting movement through the threaded connection, thereby realizing the lifting of the compression plate 411.

[0076] Reference Figure 2 The internal compression mechanism 4 also includes a drive assembly 42. An installation space is provided within the moving template 2, which is connected to the compression slide 21. The drive assembly 42 is located within the installation space. The power source for the drive assembly 42 is a drive motor 421, whose output shaft is connected to the drive column 412. In this application, the drive motor 421 is a servo motor. Therefore, by driving the compression plate 411 to move via the drive motor 421, the accuracy of the compression plate 411's vertical movement can be improved, thereby increasing the molding accuracy of the product within the molding cavity 3.

[0077] Reference Figure 2 and Figure 3 The drive assembly 42 also includes a gear transmission group 422, which includes a first bevel gear 4221, a second bevel gear 4222, a transmission gear 4223, a drive gear 4224, and a connecting shaft 4225. The first bevel gear 4221 is coaxially connected to the drive motor 421, and the first bevel gear 4221 and the second bevel gear 4222 mesh with each other. The two ends of the connecting shaft 4225 are coaxially connected to the second bevel gear 4222 and the transmission gear 4223, respectively. The transmission gear 4223 meshes with the drive gear, and the drive gear 4224 is coaxially connected to the end of the drive column 412 away from the compression plate 411. Through the gear transmission group 422, the power of the drive motor 421 can be transmitted to the drive column 412. At the same time, the first bevel gear 4221 and the second bevel gear 4222 can change the installation position of the drive motor 421, so that the drive motor 421 can be installed on the outer side wall of the moving template 2.

[0078] Reference Figure 3 and Figure 4 A connecting sleeve 4226 is provided on the upper side of the drive gear 4224. The connecting sleeve 4226 is coaxially arranged with the drive gear 4224. A connecting post 4121 is provided at one end of the drive post 412 near the drive gear 4224. The connecting post 4121 is coaxially arranged with the drive post 412.

[0079] Reference Figure 3 and Figure 4 The connecting sleeve 4226 and the connecting post 4121 are vertically inserted and engaged, with the inner wall of the connecting sleeve 4226 and the outer wall of the connecting post 4121 slidingly connected vertically. The inner wall of the connecting sleeve 4226 has several connecting grooves 4227, which penetrate the connecting sleeve 4226 axially and are evenly spaced circumferentially. The outer wall of the connecting post 4121 has several connecting blocks 4122, whose length is along the axial direction of the connecting post 4121 and are evenly spaced circumferentially. Each connecting block 4122 corresponds vertically to one of the connecting grooves 4227. When the connecting post 4121 and the connecting sleeve 4226 are inserted and engaged, the connecting blocks 4122 engage with their corresponding connecting grooves 4227.

[0080] Therefore, the connection between the connecting sleeve 4226 and the connecting post 4121 facilitates the disassembly of the drive post 412; while the connection between the connecting block 4122 and the corresponding connecting groove 4227 enables the drive gear 4224 to drive the drive post 412 to rotate, thereby realizing the vertical lifting and lowering of the drive post 412.

[0081] An overclocking vibration generator is connected to the lower end of the drive column 412. Thus, the overclocking vibration generated by the overclocking vibration generator during the internal compression of the compression plate 411 can increase the density of the product in the injection mold.

[0082] The implementation principle of this application embodiment is as follows: Under the drive of the drive motor 421, the power of the drive motor 421 is transmitted to the drive column 412 through the gear transmission group 422, so that the drive column 412 can rotate; at the same time, the lifting sleeve 51 and the drive column 412 are connected by threads, and the lifting sleeve 51 is connected to the moving template 2. Therefore, when the drive column 412 rotates, the drive column 412 will move up and down in the vertical direction along the thread in the lifting sleeve 51, thereby driving the compression plate 411 to move up and down in the molding cavity 3, so that the compression plate 411 can compress the product during the product molding process, thereby improving the pressure uniformity of various parts of the injection molded product.

[0083] Furthermore, by controlling the drive motor 421, the compression plate 411 can achieve high-precision movement in the vertical direction, thereby improving the product's accuracy.

[0084] Example 2:

[0085] The difference between this embodiment and Embodiment 1 is that: a mold equipped with an in-mold compression device, as shown in the reference... Figure 5 The outer wall of the lifting sleeve 51 is slidably connected to the inner wall of the moving template 2 in the vertical direction.

[0086] Reference Figure 5 and Figure 6 The auxiliary lifting mechanism 5 also includes locking components 52, and a plurality of locking components 52 are evenly spaced along the circumference of the lifting sleeve 51.

[0087] Reference Figure 5 and Figure 6 The locking assembly 52 includes a first locking groove 521, a second locking groove 522, a locking pin 523, a return spring 524, and a locking drive member 525. In this application, the locking drive member 525 is an electromagnet. The first locking groove 521 is formed on the inner wall of the moving template 2, and the second locking groove 522 is formed on the outer wall of the lifting sleeve 51. The first locking groove 521 and the second locking groove 522 are interconnected along the corresponding radial direction of the lifting sleeve 51. The two ends of the locking pin 523 are respectively inserted into the first locking groove 521 and the second locking groove 522, and the locking pin 523 is slidably connected to the inner walls of the first locking groove 521 and the second locking groove 522. The locking drive member 525 and the return spring 524 are both disposed in the first locking groove 521. Along the axial direction of the first locking groove 521, the return spring 524 is disposed between the locking drive member 525 and the locking pin 523, and the two ends of the return spring 524 are respectively connected to the locking drive member 525 and the locking pin 523.

[0088] Therefore, with the cooperation of the locking drive component 525 and the return spring 524, the locking pin 523 can move within the first locking groove 521 and the second locking groove 522, thereby locking or unlocking the lifting sleeve 51 and the moving template 2. When the lifting sleeve 51 is locked to the moving template 2, the drive motor 421 can drive the drive column 412 to move up and down in the vertical direction; when the lifting sleeve 51 is unlocked from the moving template 2, the lifting sleeve 51 can slide in the vertical direction, so the drive motor 421 cannot drive the drive column 412 to move up and down in the vertical direction.

[0089] Reference Figure 5 and Figure 7 A quick-drive mechanism 6 is also provided on the outer side of the drive column 412. The quick-drive mechanism 6 includes a limiting ring 61, which is coaxially disposed at the lower end of the drive column 412 and fixedly connected to the drive column 412. When the connecting column 4121 and the connecting sleeve 4226 are inserted and engaged, the limiting ring 61 and the connecting sleeve 4226 abut against each other in the vertical direction. Therefore, the limiting ring 61 can limit the movement of the drive column 412 in the vertical direction.

[0090] Reference Figure 5 and Figure 7The rapid drive mechanism 6 also includes a positioning component 62, which includes a positioning ring 621 and a mounting base 622. The positioning ring 621 is sleeved on the drive column 412, and the inner wall of the positioning ring 621 is spaced apart from the outer wall of the drive column 412. The mounting base 622 has a clearance groove 6221 on its upper side. The positioning ring 621 and the clearance groove 6221 are vertically inserted and fitted together, and the inner wall of the positioning ring 621 and the clearance groove 6221 are slidably connected in the vertical direction. Therefore, the positioning ring 621 can move up and down vertically within the clearance groove 6221.

[0091] Reference Figure 5 and Figure 7 A connecting hole 6222 is vertically oriented through the lower side of the mounting base 622. The connecting hole 6222 communicates with the relief groove 6221, and the relief hole is inserted into the connecting sleeve 4226. The limiting ring 61 abuts against the bottom of the relief groove 6221, and the limiting ring 61 also abuts against the positioning ring 621 in the vertical direction. Therefore, in the vertical direction, the limiting ring 61 is located between the bottom of the relief groove 6221 and the positioning ring 621. Thus, when the drive column 412 moves in the vertical direction, the limiting ring 61 abuts against both the positioning ring 621 and the bottom of the relief groove 6221, thereby limiting the movement of the drive column 412.

[0092] Refer to 5 and Figure 7 A plurality of drive cylinders 63 are provided between the compression plate 411 and the mounting base 622. The drive cylinders 63 are evenly spaced along the axial direction of the drive column 412, and the upper end of the drive cylinders 63 is connected to the compression plate 411, and the lower end is connected to the mounting base 622. Therefore, when the lifting sleeve 51 and the moving template 2 are released from lock, the setting of the drive cylinders 63, together with the setting of the limit ring 61 and the positioning ring 621, enables the compression plate 411 to move quickly into position in the vertical direction, thereby accelerating the internal compression step of the injection molded product.

[0093] Reference Figure 7 A plurality of control plates 6211 are provided on the outer side of the positioning ring 621. The length direction of the control plates 6211 is arranged along the radial direction corresponding to the positioning ring 621, and the control plates 6211 are evenly spaced along the circumference of the positioning ring 621. The control plates 6211 are inserted into the clearance groove 6221 in the vertical direction, and the control plates 6211 are slidably connected to the inner wall of the clearance groove 6221 in the vertical direction.

[0094] Reference Figure 7Each control plate 6211 is equipped with an adjustment component 64 on its upper side. The adjustment component 64 includes a drive cylinder 641, a drive wedge 642, a positioning wedge 643, and a resisting spring 644. The drive cylinder 641 is located on the outside of the moving template 2. The output end of the drive cylinder 641 is connected to the drive wedge 642. The lower side of the positioning wedge 643 is connected to the control plate 6211. The inclined surface of the drive wedge 642 and the inclined surface of the positioning wedge 643 cooperate with each other. The resisting spring 644 is vertically arranged between the bottom of the corresponding control plate 6211 and the relief groove 6221. Both ends of the resisting spring 644 are connected to the bottom of the corresponding control plate 6211 and the relief groove 6221, respectively. Therefore, when the drive cylinder 641 pushes the drive wedge 642 to move, the control plate 6211 can be pushed down by the cooperation of the drive wedge 642 and the positioning wedge 643, thereby adjusting the position of the positioning ring 621 in the vertical direction; while the function of the abutment spring 644 is to make the drive wedge 642 and the positioning wedge 643 abut against each other, ensuring that the drive cylinder 641 can drive the control plate 6211.

[0095] A distance sensor is provided on the lower side of the positioning ring 621. The distance sensor is embedded in the positioning ring 621. Therefore, the distance sensor can detect the distance between the positioning ring 621 and the limiting ring 61. Thus, when the position of the positioning ring 621 is adjusted by the adjusting component 64, the distance sensor can detect whether the positioning ring 621 is in contact with the limiting ring 61, thereby ensuring that the positioning ring 621 is in the correct position.

[0096] The implementation principle of this embodiment is as follows: First, the locking component 52 locks the lifting sleeve 51 to the inner wall of the moving template 2. At this time, the compression plate 411 is raised and lowered by the drive motor 421 to achieve the positioning of the compression plate 411. Second, after the compression plate 411 is positioned, the current product accuracy is ensured by measurement or repeated injection molding. Then, the position of the compression plate 411 is finely adjusted to improve the molding accuracy of the product and determine the final position of the compression plate 411. Then, after the compression plate 411 is adjusted, the adjustment component 64 is activated, causing the positioning ring 621 to move downward. Through the detection of the distance sensor, when the positioning ring 621 abuts against the current limit ring 61, the adjustment component 64 is closed, and the drive cylinder 641 maintains pressure to fix the position of the positioning ring 621. Finally, the lock between the lifting sleeve 51 and the inner wall of the moving template 2 is released, and the compression plate 411 is moved rapidly by the drive cylinder 63 to achieve internal compression.

[0097] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold equipped with an in-mold compression device, comprising a fixed template (1) and a movable template (2), wherein a molding cavity (3) is formed between the fixed template (1) and the movable template (2), characterized in that, The moving template (2) has a compression groove (21) inside, and the compression groove (21) is connected to the forming cavity (3); the moving template (2) is provided with an internal compression mechanism (4), which includes a compression component (41) and a drive component (42); the compression component (41) includes a compression plate (411), which is inserted into the compression groove (21) and slidably connected to the inner wall of the compression groove (21); the drive component (42) includes a drive motor (421), the output shaft of the drive motor (421) is threadedly connected to the compression plate (411), and the drive motor (421) can drive the compression plate (411) to slide into the forming cavity (3); The compression assembly (41) also includes a drive column (412), one end of which is rotatably connected to the compression plate (411), and the other end is coaxially connected to the drive motor (421); the mold also includes an auxiliary lifting mechanism (5), which includes a lifting sleeve (51), the lifting sleeve (51) is sleeved on the outside of the drive column (412) and the inner wall of the lifting sleeve (51) is threaded to the drive column (412), and the outside of the lifting sleeve (51) is connected to the moving template (2); The lifting sleeve (51) is slidably connected to the moving template (2) along its own axial direction; the mold also includes a quick drive mechanism (6), the quick drive mechanism (6) includes a drive cylinder (63), one end of the drive cylinder (63) is connected to the compression plate (411), and the drive direction of the drive cylinder (63) is set along the sliding direction of the compression plate (411); a locking component (52) for locking the lifting sleeve (51) is provided between the lifting sleeve (51) and the moving template (2). The locking component (52) includes a first locking groove (521) and a second locking groove (522). The first locking groove (521) is formed on the inner wall of the moving template (2), and the second locking groove (522) is formed on the outer side of the moving template (2). The first locking groove (521) and the second locking groove (522) are interconnected. A locking pin (523) is inserted into the first locking groove (521), and the other end of the locking pin (523) is inserted into the second locking groove (522). The locking pin (523) is slidably connected to both the inner wall of the first locking groove (521) and the inner wall of the second locking groove (522). A locking drive (525) is provided in the first locking groove (521) to drive the locking pin (523) to slide within the first locking groove (521) and the second locking groove (522).

2. A mold equipped with an in-mold compression device according to claim 1, characterized in that, An overclocking vibration generator is installed on the compression plate (411).

3. A mold equipped with an in-mold compression device according to claim 1, characterized in that, The drive assembly (42) further includes a gear transmission group (422), which includes a drive gear (4224) and is connected to the drive motor (421). A lifting sleeve (51) is coaxially arranged on the drive gear (4224), and a connecting column (4121) is coaxially arranged at one end of the drive column (412). The connecting column (4121) is inserted into the lifting sleeve (51). A connecting groove (4227) is opened on the inner wall of the lifting sleeve (51), and a connecting block (4122) is arranged on the outer side of the connecting column (4121). When the connecting column (4121) is inserted into the lifting sleeve (51), the connecting block (4122) is inserted into the connecting groove (4227).

4. A mold equipped with an in-mold compression device according to claim 3, characterized in that, The gear transmission assembly (422) further includes a first bevel gear (4221), a second bevel gear (4222), a transmission gear (4223), and a connecting shaft (4225). The first bevel gear (4221) meshes with the second bevel gear (4222). The first bevel gear (4221) is coaxially connected to the drive motor (421). The two ends of the connecting shaft (4225) are coaxially connected to the transmission gear (4223) and the second bevel gear (4222), respectively. The transmission gear (4223) meshes with the drive gear (4224).

5. A mold equipped with an in-mold compression device according to claim 1, characterized in that, The rapid drive mechanism (6) further includes a limiting ring (61) and a positioning component (62). The limiting ring (61) is coaxially connected to the drive column (412). The positioning component (62) includes a mounting base (622) and a positioning ring (621). The mounting base (622) and the positioning ring (621) are spaced apart from each other along the axial direction of the drive column (412). The drive column (412) is slidably connected to the mounting base (622) and the positioning ring (621) along its own axial direction. The limiting ring (61) is located between the positioning ring (621) and the mounting base (622) along its own axial direction, and the limiting ring (61) abuts against both the positioning ring (621) and the mounting base (622) along its own axial direction.

6. A mold equipped with an in-mold compression device according to claim 5, characterized in that, The mounting base (622) is provided with a clearance groove (6221), which is opened along the axial direction of the drive column (412). The positioning ring (621) is inserted into the clearance groove (6221), and the positioning ring (621) is slidably connected to the inner wall of the clearance groove (6221). The limiting ring (61) is inserted into the clearance groove (6221), and the inner wall of the clearance groove (6221) is slidably connected to or spaced apart from the limiting ring (61). The positioning ring (621) is provided with an adjustment component (64) that can drive the positioning ring (621) to slide in the clearance groove (6221).

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