Anti-falling self-locking mechanism of large mass top slider in injection mold

Abstract

The application discloses a large-mass heaven-side slider anti-falling self-locking mechanism in an injection mold, relates to the technical field of mold slider anti-falling, and has the technical scheme as follows: a front mold plate, an inclined guide column, a rear mold plate and a slider are included; stop blocks are embedded and fixed on the left and right sides of the slider on the rear mold plate; a clamping groove is arranged on the slider; a lock block is slidably connected to the clamping groove on the stop block; the lock block comprises a driving block and a lock tongue fixed on the driving block; the lock tongue can extend into the clamping groove; a supporting block is fixed on the stop block; a through groove is arranged through the supporting block and the driving block; a driving rod is slidably connected in the through groove; one end of the driving rod is fixedly connected with the front mold; and a guide driving part for driving the driving block to move towards or away from the clamping groove is arranged at the other end of the driving rod. The application adopts a mechanical component to rigidly lock and release, is not prone to failure, has good stability, can be applied to a large-mass heaven-side slider, and has good use safety.

Description

Technical Field

[0001] This invention relates to the field of mold slider anti-fall technology, and more specifically, to a self-locking mechanism for preventing large-mass top-side sliders from falling in injection molds. Background Technology

[0002] In injection molds, sliders are driven in two ways: hydraulic cylinder drive and mechanical drive. Hydraulic cylinder drive uses the push and pull of a hydraulic cylinder to move the slider forward and backward after the mold opens; this process can only be carried out after the mold opens. Mechanical drive, on the other hand, uses a lever to move the slider forward and backward during the mold opening process (e.g., inclined guide post drive). Compared to hydraulic cylinder drive, mechanical drive allows the slider to move during the mold opening process, which can reduce the production cycle and improve production efficiency.

[0003] Currently, most injection molds use hydraulic cylinders to drive the top-side slides. To reduce costs and improve production efficiency, existing hydraulically driven slides need to be replaced with mechanically driven slides. Additionally, an anti-fall mechanism needs to be installed on the slides. Existing measures to prevent slide falls often involve installing springs on the mold to apply resistance after the slide has fully exited the mold, thus preventing it from falling. However, using springs to prevent the top-side slide from falling has the drawback of unstable spring strength. Furthermore, heavy slides require springs with high elasticity, which results in significant force when the guide post is pressed back, easily causing the slide to jam and damaging the injection mold.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a self-locking mechanism for preventing the fall of large-mass top-side sliders in injection molds. It uses mechanical components for rigid locking and releasing, making it less prone to failure and exhibiting good stability. It can be applied to top-side sliders with larger masses and provides good safety in use.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a large-mass top-side slider anti-fall self-locking mechanism in an injection mold, comprising a front template, an inclined guide post fixed on the front template, a rear template, and a slider slidably connected to the rear template along the top side. The slider is provided with an inclined guide groove, and the inclined guide post is slidably connected within the inclined guide groove. The front template can slide horizontally toward or away from the rear template. Stops are embedded and fixed on the left and right sides of the slider on the rear template, and a limiting device is provided on the side of the slider near the stop. The slider falls along the top side of the slot. A locking block is slidably connected to the stop block towards the slot. The locking block includes a driving block and a locking tongue fixed on the driving block. The locking tongue can extend into the slot. A support block is fixed on one side of the stop block located on the driving block. A through groove is provided on the support block and the driving block along the sliding direction of the front template. A driving rod is slidably connected in the through groove. One end of the driving rod is fixedly connected to the front template. The other end of the driving rod is provided with a guide driving part for driving the driving block to move towards or away from the slot.

[0007] In one embodiment, the through groove is a square groove, and the drive rod is a square rod adapted to the square groove.

[0008] In one embodiment, the slot is a V-shaped slot, and the end of the latch near the slot is provided with a V-shaped protrusion that matches the V-shaped slot.

[0009] In one embodiment, the rear template is provided with a cavity for the drive rod to move.

[0010] In one embodiment, the guide drive includes a head and an inclined transition portion fixedly connected between the head and the drive rod. The head is parallel to the drive rod, and the distance from the head to the extension line of the slot is less than the distance from the drive rod to the extension line of the slot. When the drive rod moves into the through slot, the locking tongue exits the slot, and when the head moves into the through slot, the locking tongue extends into the slot.

[0011] In summary, the present invention has the following beneficial effects: During demolding, the front template slides horizontally away from the rear template, and the inclined guide post causes the slider to slide upward along the top side, so that the slot is aligned with the locking tongue. At the same time, the drive rod moves with the front template, causing the guide drive part to enter the through groove. Under the guidance of the guide drive part, the drive block drives the locking tongue to extend into the slot, thereby realizing the locking and limiting of the slider, so that the slider will not fall downward from the top side. Compared with traditional springs, the present invention uses mechanical components for rigid locking and releasing, which is not easy to fail and has better stability. It can be applied to top side sliders with larger mass and has better safety in use. In addition, the components of the present invention are embedded in the mold body, so there is no need to change the overall appearance of the mold. At the same time, the present invention also has the advantages of simple structure, low production cost and easy maintenance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the anti-fall self-locking mechanism for a large-mass top-side slider in an injection mold according to an embodiment of this application;

[0013] Figure 2 for Figure 1 A magnified view of section A in the middle.

[0014] In the figure: 1. Front template; 2. Rear template; 3. Slider; 31. Slot; 4. Inclined guide post; 5. Stop block; 6. Locking block; 61. Locking tongue; 62. Drive block; 7. Support block; 8. Drive rod; 81. Guide drive part; 811. Head; 812. Inclined transition part. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1 and Figure 2 As shown, the embodiments of this application provide a large-mass top-side slider anti-fall self-locking mechanism in an injection mold, including a front template 1, an inclined guide post 4 fixed on the front template 1, a rear template 2, and a slider 3 slidably connected to the rear template 2 along the top side. The slider 3 is provided with an inclined guide groove. The end of the inclined guide post 4 away from the front template 1 is slidably connected in the inclined guide groove. The front template 1 can slide horizontally toward or away from the rear template 2. The rear template 2 has stop blocks 5 embedded and fixed on the left and right sides of the slider 3 respectively. The slider 3 has a slot 31 on the side near the stop block 5 to limit the slider 3 from falling along the top side. The stop block 5 has a locking block 6 slidably connected to the slot 31. The locking block 6 includes a driving block 62 and a locking tongue 61 fixed on the driving block 62. The locking tongue 61 can extend into the slot 31. The stop block 5 has a support block 7 fixed on the side of the driving block 62. The support block 7 and the driving block 62 have through grooves along the sliding direction of the front template 1. The driving rod 8 is slidably connected in the through groove. One end of the driving rod 8 is fixedly connected to the front mold. The other end of the driving rod 8 is provided with a guide driving part 81 for driving the driving block 62 to move toward or away from the slot 31.

[0017] During demolding, the front mold plate 1 slides horizontally away from the rear mold plate 2. The inclined guide post 4 causes the slider 3 to slide upward along the top side, so that the slot 31 is aligned with the locking tongue 61. At the same time, the drive rod 8 moves with the front mold plate 1, so that the guide drive part 81 enters the through groove. Under the guidance of the guide drive part 81, the drive block 62 drives the locking tongue 61 to extend into the slot 31, thereby locking and limiting the slider 3, so that the slider 3 will not fall downward from the top side. Compared with the traditional spring, the present invention uses mechanical components for rigid locking and releasing, which is not easy to fail and has better stability. It can be applied to the top side slider 3 with a larger mass and has better safety in use. In addition, the components of the present invention are embedded in the mold body, so there is no need to change the overall appearance of the mold. At the same time, the present invention also has the advantages of simple structure, low production cost and easy maintenance.

[0018] In this embodiment, the through groove is a square groove, and the drive rod 8 is a square rod adapted to the square groove.

[0019] The above settings achieve circumferential limiting of the drive rod 8, preventing the drive rod 8 from rotating circumferentially.

[0020] In this embodiment, the slot 31 is a V-shaped slot, and the locking tongue 61 has a V-shaped protrusion that matches the slot at one end. During operation, the V-shaped slot guides the V-shaped protrusion, making it easier for the V-shaped protrusion to engage with the slot.

[0021] In this embodiment, the rear template 2 is provided with a cavity for the drive rod 8 to move.

[0022] In this embodiment, the guide drive part 81 includes a head 811 and an inclined transition part 812 fixedly connected between the head 811 and the drive rod 8. The head 811 is parallel to the drive rod 8. The distance from the head 811 to the extension line of the slot 31 is less than the distance from the drive rod 8 to the extension line of the slot 31. When the drive rod 8 moves into the through groove, the locking tongue 61 exits the slot 31. When the head 811 moves into the through groove, the locking tongue 61 extends into the slot 31.

[0023] With the above configuration, since the distance between the extension line of the head 811 and the slot 31 is less than the distance between the extension line of the drive rod 8 and the slot 31, when the drive rod 8 moves into the through slot, the locking tongue 61 will exit the slot 31, and when the head 811 moves into the through slot, the locking tongue 61 will extend into the slot 31. This configuration has the advantages of simple structure and good working stability.

[0024] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high-mass top-side slider anti-fall self-locking mechanism in an injection mold, comprising a front template (1), an inclined guide post (4) fixed on the front template (1), a rear template (2), and a slider (3) slidably connected to the rear template (2) along the top side, wherein the slider (3) is provided with an inclined guide groove, the inclined guide post (4) is slidably connected in the inclined guide groove, and the front template (1) can slide horizontally toward or away from the rear template (2), characterized in that: The rear template (2) has stop blocks (5) embedded and fixed on the left and right sides of the slider (3). The slider (3) has a slot (31) on the side near the stop block (5) to limit the slider (3) from falling along the top side. The stop block (5) has a locking block (6) slidably connected to the slot (31). The locking block (6) includes a driving block (62) and a locking tongue (61) fixed on the driving block (62). The locking tongue (61) can extend into the slot (31). Inside the block (5), a support block (7) is fixed on one side of the drive block (62). A through groove is provided on the support block (7) and the drive block (62) along the sliding direction of the front template (1). A drive rod (8) is slidably connected in the through groove. One end of the drive rod (8) is fixedly connected to the front template. The other end of the drive rod (8) is provided with a guide drive part (81) for driving the drive block (62) to move toward or away from the slot (31). The guide drive unit (81) includes a head (811) and an inclined transition part (812) fixedly connected between the head (811) and the drive rod (8). The head (811) is parallel to the drive rod (8). The distance from the head (811) to the extension line of the slot (31) is less than the distance from the drive rod (8) to the extension line of the slot (31). When the drive rod (8) moves into the through slot, the locking tongue (61) exits the slot (31). When the head (811) moves into the through slot, the locking tongue (61) extends into the slot (31).

2. The anti-fall self-locking mechanism for a large-mass top-side slider in an injection mold according to claim 1, characterized in that: The through groove is a square groove, and the drive rod (8) is a square rod adapted to the square groove.

3. The anti-fall self-locking mechanism for a large-mass top-side slider in an injection mold according to claim 1, characterized in that: The slot (31) is a V-shaped slot, and the end of the latch (61) near the slot (31) is provided with a V-shaped protrusion that matches the V-shaped slot.

4. The anti-fall self-locking mechanism for a large-mass top-side slider in an injection mold according to claim 1, characterized in that: The rear template (2) is provided with a cavity for the drive rod (8) to move.

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