Insert injection molding limiting device

Abstract

The utility model discloses an insert injection molding limiting device, which belongs to the technical field of insert injection molding processing and comprises a main fixing plate, a bottom plate, a bearing device, a clamping limiting device, a pre-limiting component and a pushing device. The bearing device is used for placing an injection molding part, the clamping limiting device and the pre-limiting assembly are used for limiting the injection molding part, and the pushing device is used for pushing the injection molding part into an injection mold. According to the utility model, the injection-molded part can be automatically pushed into the injection mold, and the injection-molded part is limited in the process, so that the stability of the injection-molded part in the mold is improved, the accurate positioning and pushing of the injection-molded part are realized, the problems of offset and dislocation of an insert or poor combination between the insert and a plastic layer and the like are effectively prevented, and the processing efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of insert injection molding processing, in particular to an insert injection molding limiting device. Background Art

[0002] Insert molding is a manufacturing process in which a molded or processed plastic or metal part (insert) is placed into a mold during the injection molding process, and then molten plastic is injected to combine it with the insert into a whole. This technology is widely used in the electronics, automobile, home appliance and other industries to produce composite parts with complex structures. In the traditional insert molding process, the positioning and fixation of the insert is one of the key steps. Inaccurate positioning or unstable state can cause mold damage or product defects, such as insert offset, misalignment or poor bonding between the insert and the plastic layer. Previous solutions may rely on manual operation or simple mechanical fixation, which not only affects production efficiency, but also increases the rejection rate of products. Especially when producing inserts with complex geometries or products with high precision requirements, traditional methods are often difficult to meet the needs. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide an insert injection molding limiting device, which can automatically push the injection molded parts into the injection mold and limit the injection molded parts during the process, thereby improving the stability of the injection molded parts placed in the mold and improving the processing efficiency and precision.

[0004] Technical solution: The utility model provides an insert injection molding limiting device, which is used to push the injection molded part into the injection mold and limit the injection molded part during the process. It includes: a main fixed plate, at least one base plate, at least one bearing device for placing the injection molded part, at least one clamping and limiting device, at least one pre-limiting component, and at least one pushing device; the main fixed plate is provided with a main fixed plate opening groove, the base plate is provided with a base plate opening groove, the base plate is connected to the main fixed plate by a connecting device, the bearing device passes through the main fixed plate opening groove and the base plate opening groove, the injection molded part is placed on the upper end surface of the bearing device, the clamping and limiting device passes through the main fixed plate opening groove and the base plate opening groove, the lower end is fixed below the base plate, the lower end of the pre-limiting component is fixed below the base plate, the upper end of the pre-limiting component passes through the base plate and the bearing device, and the pushing device is fixed below the base plate.

[0005] Furthermore, the bearing device includes a carrier, a group of connecting rods, and a pressure plate, wherein the upper end of the connecting rod passes through the bottom plate and is connected to the carrier, and the lower end of the connecting rod is connected to the pressure plate. The bearing device is a key component used to support and position the injection molded parts in the insert injection molding limiting device of the utility model, wherein the carrier is the main part of the bearing device, which is designed to place the injection molded parts and has sufficient strength and stability.

[0006] Furthermore, the clamping and limiting device includes at least one limiting structure, which includes a driving component and a limiting component. The driving component is installed under the base plate, and the limiting component is installed on the driving component. The driving component drives the limiting component to limit the injection molded part and the two are movably connected.

[0007] Furthermore, the driving assembly includes a cylinder fixing plate, a cylinder, a slide rail, a slider, and an adapter plate; the limiting assembly includes at least one limiting block and at least one fixed block; the cylinder fixing plate and the slide rail are fixed below the bottom plate, the cylinder is fixed on the cylinder fixing plate, and the slider is slidably connected to the slide rail; the upper surface of the adapter plate is fixedly connected to the slider, the fixed block is fixed on the adapter plate, the limiting block is fixed on the fixed block, and the lower surface is connected to the output end of the cylinder, and the cylinder drives the adapter plate to drive the fixed block and the limiting block to limit the injection molded part. The precise control force of the cylinder ensures the limiting accuracy of the injection molded part, and the sliding connection between the slider and the slide rail provides a stable movement path, reducing friction and wear during movement. The limiting block limits the injection molded part on the pressure plate to prevent the injection molded part from falling off.

[0008] Furthermore, the pre-limiting assembly includes a pre-limiting plate and at least one pre-limiting needle. The pre-limiting plate is installed below the bottom plate. The pre-limiting needle is perpendicular to the pre-limiting plate and its lower end is connected to the pre-limiting plate.

[0009] Furthermore, the pre-limiting needle includes a bottom plate limiting part, a carrier limiting part, and an injection molded part limiting part. The bottom plate limiting part matches the hole position of the corresponding size on the bottom plate, the carrier limiting part matches the hole position of the corresponding size on the carrier, and the injection molded part limiting part matches the hole position of the corresponding size on the injection molded part. The bottom plate limiting part, the carrier limiting part, and the injection molded part limiting part are distributed from coarse to fine according to the stress conditions. Through this design, the pre-limiting needle not only improves the accuracy of injection molded part positioning, but also enhances the stability of the entire limiting system. This structural distribution from coarse to fine also helps to reduce the stress concentration that may occur during the injection molding process, thereby extending the service life of the equipment and reducing maintenance costs.

[0010] Furthermore, the pushing device includes a pushing cylinder and a pushing fixing frame, the pushing fixing frame includes a pushing cylinder fixing plate and a group of pushing fixing columns, the upper end of the pushing fixing column is fixed below the bottom plate, and the lower end thereof is fixed to the pushing cylinder fixing plate, the output end of the pushing cylinder is connected to the lower end of the pressing plate, and the pushing cylinder pushes the pressing plate to push the injection molded part on the carrier into the injection mold. The pushing device is mainly driven by the cylinder, and when the injection molding is completed, the pushing device is reset, the injection molded part is taken out, and the next injection molding operation is prepared.

[0011] Furthermore, the connection device is a floating bearing, which improves the stability and flexibility of the device and adapts to different working environments and requirements.

[0012] Furthermore, a cavity is provided above the carrier, and the cavity matches the injection molded part. The cavity has various shapes and sizes to match various types of injection molded parts.

[0013] It can be seen from the above technical scheme that the utility model has the following beneficial effects: precise positioning and pushing of injection molded parts are achieved through a plurality of components cooperating with each other. For example, the cooperation of the pushing device and the supporting device can stably push the injection molded parts into the mold, and a limit and pre-limit mechanism is adopted. The double limit design ensures that the position of the injection molded parts is accurate during the pushing and injection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an insert injection molding limiting device of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the load-bearing device of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the clamping and limiting device of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the pre-limiting component of the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the pushing device of the utility model.

[0019] Description of the accompanying drawings: 1-main fixing plate, 2-bottom plate, 3-carrying device, 4-clamping limit device, 5-pre-limiting assembly, 6-pushing device, 7-connecting device, 11-main fixing plate opening slot, 21-bottom plate opening slot, 31-carrier, 32-connecting rod, 33-pressing plate, 34-cavity, 41-limiting structure, 51-pre-limiting plate, 52-pre-limiting needle, 61-pushing cylinder, 62-pushing cylinder Delivery fixing frame, 411-driving assembly, 412-limiting assembly, 521-bottom plate limiting part, 522-carrier limiting part, 523-injection molded part limiting part, 621-push cylinder fixing plate, 622-push fixing column, 4111-cylinder fixing plate, 4112-cylinder, 4113-slide rail, 4114-slider, 4115-adapter plate, 4121-limiting block, 4122-fixed block. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1The illustrated insert injection molding limiting device comprises a main fixed plate 1, at least one base plate 2, at least one supporting device 3 for placing injection molded parts, at least one clamping limiting device 4, at least one pre-limiting component 5, and at least one pushing device 6; the main fixed plate 1 is provided with a main fixed plate opening groove 11, the base plate 2 is provided with a base plate opening groove 21, the base plate 2 is connected to the main fixed plate 1 through a connecting device 7, the supporting device 3 passes through the main fixed plate opening groove 11 and the base plate opening groove 21, the injection molded part is placed on the upper end surface of the supporting device 3, the clamping limiting device 4 passes through the main fixed plate opening groove 11 and the base plate opening groove 21, the lower end is fixed below the base plate 2, the lower end of the pre-limiting component 5 is fixed below the base plate 2, the upper end of the pre-limiting component 5 passes through the base plate 2 and the supporting device 3, and the pushing device 6 is fixed below the base plate 2.

[0023] Furthermore, in this embodiment, if Figure 2 The carrier device 3 shown in the figure includes a carrier 31, a group of connecting rods 32, and a pressing plate 33. The upper end of the connecting rod 32 passes through the bottom plate 2 and is connected to the carrier 31, and the lower end of the connecting rod 32 is connected to the pressing plate 33. Preferably, four connecting rods 32 are provided.

[0024] Furthermore, in this embodiment, if Figure 3 The clamping and limiting device 4 shown includes at least one limiting structure 41, and the limiting structure 41 includes a driving component 411 and a limiting component 412. The driving component 411 is installed below the base plate 2, and the limiting component 412 is installed on the driving component 411. The driving component 411 drives the limiting component 412 to limit the injection molded part and the two are movably connected.

[0025] Furthermore, in this embodiment, if Figure 3The driving assembly 411 shown includes a cylinder fixing plate 4111, a cylinder 4112, a slide rail 4113, a slider 4114, and an adapter plate 4115; the limiting assembly 412 includes at least one limiting block 4121 and at least one fixing block 4122; the cylinder fixing plate 4111 and the slide rail 4113 are fixed below the base plate 2, the cylinder 4112 is fixed on the cylinder fixing plate 4111, and the slider 4114 is slidably connected to the slide rail 4113; the upper surface of the adapter plate 4115 is fixedly connected to the slider 4114, the fixing block 4122 is fixed on the adapter plate 4115, the limiting block 4121 is fixed on the fixing block 4122, and the lower surface is connected to the output end of the cylinder 4112, and the cylinder 4112 drives the adapter plate 4115 to drive the fixing block 4122 and the limiting block 4121 to limit the injection molded part. Preferably, a group of limiting structures 41 is provided, including two driving components 411 and two limiting components 412, each limiting component 412 has two limiting blocks 4121, when the injection molded part needs to be limited, the two driving components 411 cooperate with each other to drive the two corresponding limiting components 412 to limit the injection molded part from two symmetrical directions of the injection molded part at the same time, and the injection molded part is clamped by two limiting blocks 4121 in each direction.

[0026] Further, in this embodiment, if Figure 4 The pre-limiting assembly 5 shown includes a pre-limiting plate 51 and at least one pre-limiting pin 52. The pre-limiting plate 51 is installed below the bottom plate 2. The pre-limiting pin 52 is perpendicular to the pre-limiting plate 51 and its lower end is connected to the pre-limiting plate 51. Preferably, three pre-limiting pins are provided.

[0027] Further, in this embodiment, if Figure 4 The pre-limiting needle 52 shown includes a base plate limiting portion 521, a carrier limiting portion 522, and an injection molded part limiting portion 523. The base plate limiting portion 521 matches with a hole position of corresponding size on the base plate 2, the carrier limiting portion 522 matches with a hole position of corresponding size on the carrier, and the injection molded part limiting portion 523 matches with a hole position of corresponding size on the injection molded part. The base plate limiting portion 521, the carrier limiting portion 522, and the injection molded part limiting portion 523 are distributed from coarse to fine according to the force conditions.

[0028] Further, in this embodiment, if Figure 5 The pushing device 6 shown includes a pushing cylinder 61 and a pushing fixing frame 62. The pushing fixing frame 62 includes a pushing cylinder fixing plate 621 and at least one pushing fixing column 622. The upper end of the pushing fixing column 622 is fixed below the bottom plate 2, and the lower end thereof is fixed to the pushing cylinder fixing plate 621. The output end of the pushing cylinder 61 is connected to the lower end of the pressing plate 33. The pushing cylinder 61 pushes the pressing plate 33 to push the injection molded part on the carrier 31 into the injection mold. Preferably, as Figure 1 The connecting device 7 shown is a floating bearing.

[0029] The working principle of the insert injection molding limiter is based on the coordinated actions of a series of carefully designed components, aiming to achieve the precise positioning, stable holding and efficient pushing of the injection molded parts into the injection mold. The following is a detailed explanation of how the device works:

[0030] Initialization state: the injection molded part is placed on the carrier 31, which is supported by the connecting rod 32, which passes through the main fixing plate opening slot 11 and the bottom plate opening slot 21 and is connected to the pressing plate 33. The pre-limiting needle 52 of the pre-limiting assembly 5 is inserted into the hole of the injection molded part to preliminarily position it and prevent it from moving on the carrier 31.

[0031] Clamping and limiting: When the injection molded part is placed in place, the clamping and limiting device 4 is activated. The cylinder 4112 drives the slider 4114 to move along the slide rail 4113. The movement of the slider 4114 drives the fixed block 4122 and the limiting block 4121 through the adapter plate 4115, so that the limiting block 4121 can clamp and limit the injection molded part more accurately. In this way, the injection molded part is clamped by the limiting blocks in two directions to ensure that its position is accurate and without deviation.

[0032] Pushing into mold: The pushing device 6 is activated, and the pushing cylinder 61 pushes the pressing plate 33, pushing the carrier 31 and the injection molded part thereon into the injection mold smoothly. After the injection molding is completed, the pushing device is reset, the injection molded part is taken out, and the system is ready for the next cycle.

[0033] Connection and flexibility: The connection device 7 uses a floating bearing to ensure the stability and flexibility of the entire device under different working environments, reduce vibration, prevent the deviation of the base plate 2, and improve accuracy.

[0034] Pre-limiting and limiting work together: the pre-limiting needle 52 provides rough positioning at the initial stage of injection molding, while the clamping limiting device 4 provides more precise limiting before pushing. The double limiting mechanism ensures the stable position of the injection molding during the whole process.

[0035] Through these steps, the insert injection molding limit device ensures the precise positioning and stable pushing of the injection molded parts during the insert injection molding process, thereby improving production efficiency and product quality.

[0036] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An insert injection molding limiting device, characterized in that: include: A main fixed plate (1), at least one bottom plate (2), at least one bearing device (3) for placing an injection molded part, at least one clamping and limiting device (4), at least one pre-limiting component (5), and at least one pushing device (6); the main fixed plate (1) is provided with a main fixed plate opening groove (11), the bottom plate (2) is provided with a bottom plate opening groove (21), the bottom plate (2) is connected to the main fixed plate (1) via a connecting device (7), the bearing device (3) passes through the main fixed plate opening groove (11) and the bottom plate opening groove (21), the injection molded part is placed on the upper surface of the bearing device (3), the clamping and limiting device (4) passes through the main fixed plate opening groove (11) and the bottom plate opening groove (21), the lower end of which is fixed below the bottom plate (2), the lower end of the pre-limiting component (5) is fixed below the bottom plate (2), the upper end of the pre-limiting component (5) passes through the bottom plate (2) and the bearing device (3), and the pushing device (6) is fixed below the bottom plate (2).

2. The insert injection molding limiting device according to claim 1, characterized in that: The bearing device (3) comprises a carrier (31), a group of connecting rods (32), and a pressing plate (33); the upper ends of the connecting rods (32) pass through the bottom plate (2) and are connected to the carrier (31); and the lower ends of the connecting rods (32) are connected to the pressing plate (33).

3. The insert injection molding limiting device according to claim 1, characterized in that: The clamping and limiting device (4) comprises at least one limiting structure (41), wherein the limiting structure (41) comprises a driving component (411) and a limiting component (412), wherein the driving component (411) is mounted below the base plate (2), and the limiting component (412) is mounted on the driving component (411), and the driving component (411) drives the limiting component (412) to limit the injection molded part, and the two are movably connected.

4. The insert injection molding limiting device according to claim 3, characterized in that: The driving assembly (411) comprises a cylinder fixing plate (4111), a cylinder (4112), a slide rail (4113), a slider (4114), and an adapter plate (4115); the limiting assembly (412) comprises at least one limiting block (4121) and at least one fixing block (4122); the cylinder fixing plate (4111) and the slide rail (4113) are fixed below the bottom plate (2); the cylinder (4112) is fixed on the cylinder fixing plate (4111); and the slider (4114) is fixed to the bottom plate (2). (4114) is slidably connected to the slide rail (4113); the upper surface of the adapter plate (4115) is fixedly connected to the slider (4114), the fixed block (4122) is fixed on the adapter plate (4115), the limit block (4121) is fixed on the fixed block (4122), and the lower surface is connected to the output end of the cylinder (4112), and the cylinder (4112) drives the adapter plate (4115) to drive the fixed block (4122) and the limit block (4121) to limit the injection molded part.

5. The insert injection molding limiting device according to claim 1, characterized in that: The pre-limiting assembly (5) comprises a pre-limiting plate (51) and at least one pre-limiting needle (52); the pre-limiting plate (51) is installed below the bottom plate (2); the pre-limiting needle (52) is perpendicular to the pre-limiting plate (51), and its lower end is connected to the pre-limiting plate (51).

6. The insert injection molding limiting device according to claim 5, characterized in that: The pre-limiting needle (52) comprises a bottom plate limiting portion (521), a carrier limiting portion (522), and an injection molded part limiting portion (523); the bottom plate limiting portion (521) matches a hole position of corresponding size on the bottom plate (2); the carrier limiting portion (522) matches a hole position of corresponding size on the carrier; and the injection molded part limiting portion (523) matches a hole position of corresponding size on the injection molded part; the bottom plate limiting portion (521), the carrier limiting portion (522), and the injection molded part limiting portion (523) are distributed from coarse to fine according to the stress conditions.

7. The insert injection molding limiting device according to claim 2, characterized in that: The pushing device (6) comprises a pushing cylinder (61) and a pushing fixing frame (62); the pushing fixing frame (62) comprises a pushing cylinder fixing plate (621) and a group of pushing fixing columns (622); the upper ends of the pushing fixing columns (622) are fixed below the bottom plate (2), and the lower ends thereof are fixed to the pushing cylinder fixing plate (621); the output end of the pushing cylinder (61) is connected to the lower end of the pressing plate (33); the pushing cylinder (61) pushes the pressing plate (33) to push the injection molded part on the carrier (31) into the injection mold.

8. The insert injection molding limiting device according to claim 1, characterized in that The connecting device (7) is a floating bearing.

9. The insert injection molding limiting device according to claim 2, characterized in that A cavity (34) is provided above the carrier (31), and the cavity (34) cooperates with the injection molded part.

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