A bearing retainer cage mold quick demolding device

Abstract

The utility model discloses a bearing retainer mould quick demoulding device belongs to mould technical field, including base, the top of base is fixedly connected with lower mould, the lower mould below is equipped with the ejection assembly, the ejection assembly includes the ejection rod, in the utility model, through setting up ejection assembly and drive assembly, control motor starts after driving the synchronous rotation of rotation axis and driving gear, and the meshing transmission of driving gear and toothed plate makes toothed plate directional slip along slide rail, and the inclined top block of toothed plate front end is along with before advancing, and the limiting groove on the inclined surface of top block is rolled and is embedded with the gyro wheel, and the feed movement of horizontal direction is converted into the jacking force of vertical direction, and the gyro wheel pushes the ejection rod along the center position of lower mould and stably rises through the connecting frame, and the ejection plate synchronous moves and ejects the retainer of the forming from the cavity, and the mode of discarding traditional manual operation is reduced the manual intervention, and the demoulding efficiency and operation stability are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and in particular relates to a quick demolding device for bearing cage molds. Background Technology

[0002] As a core component of rolling bearings, the molding quality of the bearing cage directly affects the bearing's operational accuracy and service life. During injection molding or compression molding, the cage is tightly fitted to the mold cavity, making demolding a critical process that restricts production efficiency and yield. Traditional demolding methods often involve manual knocking, where operators use tools such as pry bars to manually separate the cage from the mold. However, manual demolding is labor-intensive, inefficient, and the knocking force is difficult to control, easily causing cage deformation or surface damage, affecting product dimensional accuracy, and failing to meet the demands of modern industrial continuous and efficient production. To solve these problems, there is an urgent need for a new type of device that features precise transmission, low frictional resistance, stable operation, and automated rapid demolding. Summary of the Invention

[0003] The purpose of this utility model is to solve the problem that traditional demolding methods mostly rely on manual knocking, where operators use tools such as pry bars to manually separate the cage from the mold. However, manual demolding is labor-intensive, inefficient, and the knocking force is difficult to control, which can easily cause deformation or surface damage to the cage, affecting the dimensional accuracy of the product and making it difficult to meet the needs of continuous and efficient production in modern industry. Therefore, a quick demolding device for bearing cage molds is proposed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A quick demolding device for a bearing cage mold includes a base, a lower mold fixedly connected to the top of the base, an ejection assembly below the lower mold, the ejection assembly including an ejection rod slidably connected to the center of the lower mold below the lower mold, a connecting frame fixedly connected to the bottom end of the ejection rod, rollers rotatably connected between the inner walls of the connecting frame, a pressure plate fixedly connected to the middle of the ejection rod, and an ejection plate fixedly connected to the top end of the ejection rod, the ejection plate being located at the inner bottom of the lower mold. A reset assembly is provided below the lower mold, the reset assembly plate including four pillars distributed at the four corners below the lower mold, the bottom ends of the four pillars penetrating the four corners of the pressure plate, a stop block fixedly connected to the bottom end of each pillar, and a reset spring sleeved on the outer wall of each pillar.

[0005] As a further description of the above technical solution: An extension plate is fixedly connected to one side of the base, and a drive assembly is provided above the extension plate. The drive assembly includes a support frame. There are two support frames, which are fixedly connected to the top of the extension plate. A rotating shaft is rotatably connected between the two support frames. A control motor is provided at one end of the rotating shaft. The control motor is fixedly connected to the side of one of the support frames, and a drive gear is fixedly connected to the other end of the rotating shaft.

[0006] As a further description of the above technical solution: A slide rail is fixedly connected to the upper part of the extension plate, and a toothed plate is slidably connected between the inner walls of the slide rail. The drive gear meshes with the teeth on the upper part of the toothed plate.

[0007] As a further description of the above technical solution: A top block is fixedly connected to one end of the toothed plate facing the ejector assembly. The top block is of an inclined design, and a limiting groove is formed on the inclined surface of the top block. The position of the limiting groove corresponds to the position of the roller.

[0008] As a further description of the above technical solution: Two positioning grooves are respectively opened on both sides of the lower mold, and an upper mold is provided above the lower mold.

[0009] As a further description of the above technical solution: Two positioning blocks are fixedly connected to both sides of the upper mold, and the positions of the two positioning blocks correspond to the positions of the two positioning slots.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, by setting an ejection assembly and a drive assembly, the motor is controlled to start and drive the rotating shaft and the drive gear to rotate synchronously. The drive gear meshes with the toothed plate to make the toothed plate slide along the slide rail in a directional manner. The inclined ejector block at the front end of the toothed plate moves forward accordingly. The limiting groove on the inclined surface of the ejector block rolls and engages with the roller, converting the horizontal feed motion into the vertical lifting force. The roller pushes the ejector rod to rise stably along the center position of the lower mold through the connecting frame. The ejector plate moves upward synchronously to eject the molded retainer out of the cavity. By using the drive gear and toothed plate to drive, the movement of the ejector block is ensured to be precise and controllable, making the ejection process smooth and stable. The demolding action is automated, eliminating the traditional manual operation method, reducing manual intervention, and improving demolding efficiency and operational stability.

[0011] 2. In this utility model, by setting a reset component, during the upward movement of the ejector rod, the pressure plate moves synchronously upward along the four pillars and compresses the reset spring. After demolding, the ejector block retracts under the drive of the toothed plate, and the compressed reset spring releases its elastic potential energy to push the pressure plate downward. The ejector rod and ejector plate follow the movement of the pressure plate and reset to their initial positions. In this way, the ejector plate can quickly return to its original position without additional power under the automatic rebound of the reset spring, which simplifies the mechanical configuration, reduces energy consumption and maintenance frequency, meets the rhythm requirements of continuous production, and improves the economic efficiency of the device operation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a quick demolding device for a bearing cage mold proposed in this utility model; Figure 2 This is a cross-sectional view of the base structure of a quick demolding device for a bearing cage mold proposed in this utility model; Figure 3 This is a schematic diagram of the connection structure between the ejector assembly and the lower mold of a quick demolding device for a bearing cage mold proposed in this utility model; Figure 4 This is a schematic diagram of the drive assembly structure of a bearing cage mold quick demolding device proposed in this utility model.

[0013] Legend: 1. Base; 2. Lower mold; 3. Ejector assembly; 301. Ejector rod; 302. Connecting frame; 303. Roller; 304. Pressure plate; 305. Ejector plate; 4. Reset assembly; 401. Support column; 402. Stop block; 403. Reset spring; 5. Extension plate; 6. Drive assembly; 601. Support frame; 602. Rotating shaft; 603. Control motor; 604. Drive gear; 605. Slide rail; 606. Gear plate; 607. Ejector block; 608. Limiting groove; 7. Positioning groove; 8. Upper mold; 9. Positioning block. Detailed Implementation

[0014] The utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are only descriptive and are not limiting of the scope of protection of this utility model.

[0015] In its specific implementation, such as Figures 1-4 This utility model provides a technical solution: A quick demolding device for a bearing cage mold includes a base 1, a lower mold 2 fixedly connected to the upper part of the base 1, two positioning grooves 7 respectively opened on both sides of the lower mold 2, an upper mold 8 provided above the lower mold 2, and two positioning blocks 9 fixedly connected to both sides of the upper mold 8 respectively. The positions of the two positioning blocks 9 correspond to the positions of the two positioning grooves 7. Through the cooperation between the positioning grooves 7 and the positioning blocks 9, when the mold is closed, the positioning blocks 9 are inserted into the positioning grooves 7, so as to achieve precise positioning of the upper mold 8 and the lower mold 2, ensure that the cavities of the upper mold 8 and the lower mold 2 are completely aligned, prevent misalignment from causing defects in the forming of the cage, and improve the product dimensional accuracy and production consistency. An ejector assembly 3 is provided below the lower mold 2. The ejector assembly 3 includes an ejector rod 301, which is located below the lower mold 2 and slidably connected to the center of the lower mold 2. A connecting frame 302 is fixedly connected to the bottom end of the ejector rod 301, and rollers 303 are rotatably connected between the inner walls of the connecting frame 302. A pressure plate 304 is fixedly connected to the middle of the ejector rod 301, and an ejector plate 305 is fixedly connected to the top end of the ejector rod 301. The ejector plate 305 is located at the inner bottom of the lower mold 2. Due to the presence of the ejector plate 305, the ejector plate 305 moves upward at the inner bottom of the lower mold 2 under the push of the ejector rod 301, thereby ejecting the retainer located inside the lower mold 2, facilitating demolding and improving demolding efficiency. To improve mold efficiency, a reset assembly 4 is provided below the lower mold 2. The reset assembly 4 includes four support pillars 401, which are distributed at the four corners below the lower mold 2. The bottom ends of the four support pillars 401 pass through the four corners of the pressure plate 304. A stop block 402 is fixedly connected to the bottom end of the support pillar 401. A reset spring 403 is sleeved on the outer wall of the support pillar 401. Because of the reset assembly 4, the pressure plate 304 can compress the reset spring 403 when the ejector rod 301 rises. After demolding, the reset spring 403 automatically releases its elastic force to push the pressure plate 304 down, so that the ejector rod 301 and the ejector plate 305 quickly fall back to the initial position, realizing the automatic reset of the ejector plate 305 and meeting the needs of continuous production. An extension plate 5 is fixedly connected to one side of the base 1. A drive assembly 6 is located above the extension plate 5. The drive assembly 6 includes two support frames 601, which are fixedly connected to the top of the extension plate 5. A rotating shaft 602 is rotatably connected between the two support frames 601. A control motor 603 is located at one end of the rotating shaft 602 and is fixedly connected to the side of one of the support frames 601. A drive gear 604 is fixedly connected to the other end of the rotating shaft 602. A slide rail 605 is fixedly connected to the top of the extension plate 5. A toothed plate 606 is slidably connected between the inner walls of the slide rail 605. The drive gear 604 meshes with the teeth on the toothed plate 606. Through the cooperation between the slide rail 605 and the toothed plate 606, the slide rail 605 and the toothed plate 606 form a T-shape. The design ensures the stability of the toothed plate 606 during movement, preventing it from shifting and thus guaranteeing the ejection and demolding accuracy of the ejector assembly 3. A top block 607 is fixedly connected to the end of the toothed plate 606 facing the ejector assembly 3. The top block 607 has an inclined design, with a limiting groove 608 on its inclined surface. The position of the limiting groove 608 corresponds to the position of the roller 303. Through the cooperation between the roller 303 and the top block 607, the roller 303 rolls along the inclined limiting groove 608 when the top block 607 moves. The limiting groove 608 provides guidance for the roller 303. Simultaneously, under the action of the top block 607, the roller 303 drives the ejector rod 301 upwards to push out the retainer inside the lower mold 2, ensuring smooth and uninterrupted ejection.

[0016] Working principle: When using this device, the control motor 603 starts to drive the rotating shaft 602 to rotate. The rotating shaft 602 drives the drive gear 604 to rotate. Since the drive gear 604 meshes with the teeth on the toothed plate 606, the drive gear 604 drives the toothed plate 606 to slide horizontally along the slide rail 605 during rotation. The top block 607 at the end of the toothed plate 606 is pushed towards the ejector assembly 3. During the movement of the top block 607, its inclined surface contacts and presses against the roller 303. The limiting groove 608 on its inclined surface provides a guide path for the roller 303. The roller 303 rolls along the inclined path of the limiting groove 608, forcing the connecting frame 302 to be ejected. The rod 301 slides upward against the resistance of the return spring 403. When the ejector rod 301 rises, the pressure plate 304 moves upward along the outer wall of the support column 401 and compresses the return spring 403. The ejector plate 305 then rises vertically at the bottom of the lower mold 2, pushing the formed bearing cage out of the lower mold 2. After demolding, the control motor 603 reverses, the drive gear 604 drives the toothed plate 606 to retract, the ejector block 607 disengages from the roller 303, the return spring 403 releases its elastic force to push the pressure plate 304 downward, and the ejector rod 301 and ejector plate 305 fall back to their initial positions, waiting for the next injection cycle. This cycle repeats, realizing the rapid demolding function in the continuous production process.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A quick demolding device for a bearing cage mold, characterized in that, include: A base (1) is provided, and a lower mold (2) is fixedly connected above the base (1). An ejector assembly (3) is provided below the lower mold (2). The ejector assembly (3) includes an ejector rod (301). The ejector rod (301) is located below the lower mold (2) and is slidably connected to the center of the lower mold (2). A connecting frame (302) is fixedly connected to the bottom end of the ejector rod (301). Rollers (303) are rotatably connected between the inner walls of the connecting frame (302). A pressure plate (304) is fixedly connected to the middle position of the ejector rod (301). The top of the mold (301) is fixedly connected to the ejector plate (305), which is located at the bottom of the lower mold (2). The lower mold (2) is provided with a reset assembly (4). The reset assembly (4) includes a support column (401). There are four support columns (401) and they are distributed at the four corners below the lower mold (2). The bottom ends of the four support columns (401) pass through the four corners of the pressure plate (304). The bottom ends of the support columns (401) are fixedly connected to the stop block (402). The outer wall of the support column (401) is fitted with a reset spring (403).

2. The bearing cage mold quick demolding device according to claim 1, characterized in that, An extension plate (5) is fixedly connected to one side of the base (1). A drive assembly (6) is provided above the extension plate (5). The drive assembly (6) includes a support frame (601). There are two support frames (601) and they are fixedly connected to the top of the extension plate (5). A rotating shaft (602) is rotatably connected between the two support frames (601). A control motor (603) is provided at one end of the rotating shaft (602). The control motor (603) is fixedly connected to the side of one of the support frames (601). A drive gear (604) is fixedly connected to the other end of the rotating shaft (602).

3. The bearing cage mold quick demolding device according to claim 2, characterized in that, A slide rail (605) is fixedly connected above the extension plate (5), and a toothed plate (606) is slidably connected between the inner walls of the slide rail (605). The drive gear (604) meshes with the teeth above the toothed plate (606).

4. The bearing cage mold quick demolding device according to claim 3, characterized in that, The toothed plate (606) is fixedly connected to a top block (607) at one end facing the ejector assembly (3). The top block (607) is of inclined design. A limiting groove (608) is provided on the inclined surface of the top block (607). The position of the limiting groove (608) corresponds to the position of the roller (303).

5. The bearing cage mold quick demolding device according to claim 1, characterized in that, The lower mold (2) has two positioning grooves (7) on both sides, and the upper mold (8) is provided above the lower mold (2).

6. A quick demolding device for a bearing cage mold according to claim 5, characterized in that, Two positioning blocks (9) are fixedly connected to both sides of the upper mold (8), and the positions of the two positioning blocks (9) correspond to the positions of the two positioning slots (7).

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