Inclined ejection mechanism of injection mold

Abstract

The utility model discloses a pitched roof mechanism of an injection mold, which comprises an injection mold, a section mold, a pitched roof component and a section mold seat fixed on the bottom surface of the section mold, a fixed guide plate is fixedly mounted on the inner side of the section mold seat, an ejector plate is slidably mounted on the top surface of the fixed guide plate, and a guide rod is fixedly mounted on the surface of the fixed guide plate. And an elastic reset rod connected with the ejector plate is arranged on the bottom surface of the section mold. And the inclined ejection assembly comprises a fixed inclined block, a sliding wedge block, a driving rod and an adjusting threaded rod, the output end of the driving rod penetrates through the adjusting threaded rod and is fixedly connected with the end of the sliding wedge block, and the bottom face of the sliding wedge block abuts against the top face of the fixed inclined block in a relative sliding mode. Through the inclined surface sliding fit structure of the fixed inclined block and the sliding wedge block, the ejector plate is synchronously and horizontally jacked up under the action of the driving rod, so that a plurality of ejector rods are synchronously jacked out, the demolding smoothness and efficiency are effectively improved, and the ejection mechanism is reasonable in structure, simple to operate, suitable for various injection molds and high in practicability. The practicability and the stability are relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding of injection molds, in particular to an inclined ejector mechanism for an injection mold. Background Art

[0002] In the field of injection mold technology, traditional demolding mechanisms typically rely on an ejector plate to drive several ejector pins to release the product. In this traditional structure, the ejector plate is lifted by a driving force, and the ejector pins are typically located at different locations on the ejector plate. Due to uneven force distribution, the ejector pins are prone to asynchronous movement during the demolding process. In particular, when the forces acting on the ejector pins are unbalanced, the ejector plate can tilt, causing the ejector pins to eject independently and asynchronously, affecting demolding stability.

[0003] Furthermore, due to the asynchronous ejection of the ejector pins, the molded part in the mold may be subject to uneven ejection force, especially in vulnerable areas of the product surface. This can easily cause localized deformation, scratches, or even damage to the molded part, reducing product quality and production efficiency. Therefore, solving the problems of ejector plate tilt and asynchronous ejector pin movement has become a major technical issue that urgently needs to be improved in traditional demolding mechanisms.

[0004] In view of this, the existing problems are studied and improved, and an injection mold inclined ejector mechanism is provided to solve the current problems. The purpose is to achieve the purpose of solving the problems and improving the practical value through this technology. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art such as tilting of the ejector plate, asynchronous movement of the ejector and easy damage to the surface of the product, and provides an injection mold inclined ejector mechanism with reasonable structure, stable operation and high efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides an injection mold tilting mechanism, comprising: an injection mold, a mold and a tilting assembly and a mold base fixed to the bottom surface of the mold.

[0007] An ejector plate located on the top surface of the fixed guide plate is slidably mounted on the inner side of the mold base, a fixed guide plate is fixedly mounted on the inner side of the mold base, a guide rod connected to the bottom surface of the mold is fixedly mounted on the surface of the fixed guide plate, and the ejector plate is slidably sleeved on the surface of the guide rod;

[0008] The inclined top assembly includes a fixed inclined block, a sliding wedge block, a driving rod, and an adjusting threaded rod movably mounted on the surface of the fixed inclined block. The output end of the driving rod passes through the adjusting threaded rod and is fixedly connected to the end of the sliding wedge block. The bottom surface of the sliding wedge block and the top surface of the fixed inclined block are both inclined and slide relative to each other.

[0009] The reset structure comprises an elastic reset rod which is fixedly mounted on the bottom surface of the mold and is used to reset the ejector plate.

[0010] Further improvements:

[0011] The number of the inclined ejector components and the limit switches is two groups, and they are symmetrically arranged on both sides of the fixed guide plate.

[0012] The driving rods are electrically connected to a controller, which is used to synchronously control the start and stop of the two sets of driving rods and quickly stop working when non-horizontal jacking is detected to ensure stable movement of the ejector plate.

[0013] The ejector rod passes through the mold and extends into the mold cavity, and cooperates with the ejector plate to achieve stable ejection of the molded part.

[0014] The beneficial effects achieved by the utility model are:

[0015] 1. In the utility model, through the inclined sliding cooperation structure of the fixed bevel block and the sliding wedge block, under the driving action of the driving rod, the sliding wedge block slides along the fixed bevel block, realizing the horizontal lifting movement of the ejector plate and then realizing the synchronous ejection of several ejector rods, thereby improving the smoothness and efficiency of demoulding.

[0016] 2. In the present invention, by providing a guide rod and an elastic reset rod, stable motion guidance and rapid return functions are provided during the vertical lifting of the ejector plate, effectively preventing dislocation or jamming during the mold demolding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the surface structure of the die base according to one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the fixed guide plate and the ejector plate according to one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a sloping roof assembly according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] 100, injection mold; 200, mold; 210, mold base; 220, fixed guide plate; 230, ejector plate; 240, ejector rod; 250, limit switch; 221, guide rod; 231, elastic reset rod; 300, inclined ejector assembly; 310, fixed inclined block; 320, sliding wedge block; 330, drive rod; 340, adjusting threaded rod; 321, sliding pin. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0024] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0025] The following is combined with Figure 1-Figure 4 Some embodiments of the present invention provide an injection mold lift mechanism, comprising:

[0026] The injection mold 100 , the mold 200 , the lift assembly 300 and the mold base 210 fixed to the bottom surface of the mold 200 .

[0027] Among them, a fixed guide plate 220 is fixedly installed on the inner side of the mold base 210, and a pin plate 230 located on the top surface of the fixed guide plate 220 is also slidably installed on the inner side of the mold base 210. A guide rod 221 connected to the bottom surface of the mold 200 is fixedly installed on the surface of the fixed guide plate 220. The outer periphery of the guide rod 221 is slidably sleeved in the sliding hole set on the pin plate 230, playing a role of stable guidance.

[0028] The inclined top assembly 300 includes: a fixed inclined block 310 fixedly mounted on the surface of the fixed guide plate 220, a sliding wedge block 320 that cooperates with the inclined surface of the fixed inclined block 310, a driving rod 330 that drives the sliding wedge block 320 to slide on the fixed inclined block 310, and an adjusting threaded rod 340 connected to the driving rod 330.

[0029] The bottom surface of the sliding wedge block 320 and the top surface of the fixed bevel block 310 are both inclined and slide relative to each other. A sliding pin 321 is also fixedly installed on the bottom surface of the sliding wedge block 320, and the surface of the fixed bevel block 310 is provided with a sliding hole for guiding the sliding pin 321 to slide, ensuring that the sliding wedge block 320 slides stably along the fixed bevel block 310.

[0030] When the drive rod 330 is pushed forward, the sliding wedge 320 slides along the inclined surface of the fixed bevel block 310. This movement of the sliding wedge 320 causes the ejector plate 230 to synchronously and horizontally lift, thereby achieving the simultaneous ejection of several ejector rods 240 and smoothing the product demolding. The sliding cooperation between the inclined surfaces of the fixed bevel block and the sliding wedge ensures smooth movement of the ejector plate during the ejection process, resolving the problem of tilting the ejector plate and asynchronous movement of the ejector pins in conventional technologies. Example 1

[0031] Based on the first embodiment, Figure 2 and Figure 3As shown, the present invention further includes: an elastic reset rod 231, the two ends of which are respectively fixed between the bottom surface of the mold 200 and the top surface of the ejector plate 230, for realizing the rapid reset function of the ejector plate; a limit switch 250, which is used to monitor the working status of the ejector plate 230.

[0032] After the drive rod 330 drives the sliding wedge 320 to slide and complete the demolding operation, the elastic reset rod 231, under its elastic action, pushes the ejector plate 230 back to its original position, ensuring that the ejector rod 240 returns to its initial position. Furthermore, the provision of a limit switch 250 allows for real-time monitoring of the ejector plate's horizontal position, ensuring its synchronization and stability, and preventing mold damage caused by abnormal movement. The elastic reset rod improves the ejector plate's return efficiency and ensures rapid mold reset; the limit switch provides real-time monitoring of the movement status, enhancing the safety and reliability of the mold demolding process.

[0033] like Figure 4 As shown, in this embodiment, the top end of the ejector rod 240 penetrates the mold 200 and extends into the mold cavity, contacting the product and enabling smooth ejection. Furthermore, two sets of inclined ejector assemblies 300 and the drive mechanism are symmetrically arranged on either side of the fixed guide plate 220, forming a point-of-origin symmetric structure. This ensures that the ejector plate 230 is subjected to more uniform force during the demolding process.

[0034] The synchronous operation of the two inclined ejector assemblies allows the ejector plate 230 to be lifted horizontally under the guidance of the fixed guide plate 220. The ejector rod 240 simultaneously acts on the product, achieving smooth demolding and reducing damage caused by uneven force on the product surface. The symmetrical arrangement of the two inclined ejector assemblies ensures a more even force distribution on the ejector plate, further improving the smoothness and efficiency of demolding.

[0035] This new design achieves synchronous ejection and rapid return of the ejector plate through the sliding engagement of the inclined surfaces of the fixed bevel block and the sliding wedge, and the stable guidance and rapid return of the guide rod and elastic return lever. This solves the problems of ejector plate tilt, ejector pin asynchrony, and surface damage in conventional technologies. Real-time monitoring by the limit switch and the symmetrical arrangement of the two inclined ejector assemblies further improve the safety, stability, and efficiency of the mold release process.

[0036] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An injection mold tilting mechanism, characterized in that: include: An injection mold (100), a mold (200) and an inclined ejector assembly (300), an ejector rod (240), a limit switch (250), and a mold base (210) fixed to the bottom surface of the mold (200), wherein a fixed guide plate (220) is fixedly installed on the inner side of the mold base (210), an ejector plate (230) located on the top surface of the fixed guide plate (220) is slidably installed on the inner side of the mold base (210), a guide rod (221) connected to the bottom surface of the mold (200) is fixedly installed on the surface of the fixed guide plate (220), and the ejector plate (230) is fixedly installed on the surface of the fixed guide plate (220). ) is slidably sleeved on the surface of the guide rod (221), the bottom surface of the mold (200) is provided with an elastic reset rod (231) connected to the surface of the ejector plate (230), the inclined ejector assembly (300) includes a fixed inclined block (310), a sliding wedge block (320), a driving rod (330) and an adjusting threaded rod (340) movably mounted on the surface of the fixed inclined block (310), the driving rod (330) is fixed to the surface of the adjusting threaded rod (340) and the output end passes through the adjusting threaded rod (340) and is fixedly connected to the end of the sliding wedge block (320).

2. The injection mold lift mechanism according to claim 1, characterized in that: The bottom surface of the sliding wedge block (320) and the top surface of the fixed bevel block (310) are both inclined and in relative sliding contact. A sliding pin (321) is fixedly mounted on the bottom surface of the sliding wedge block (320), and a sliding sleeve hole for guiding the sliding pin (321) is provided on the surface of the fixed bevel block (310).

3. The injection mold lift mechanism according to claim 1, characterized in that: The fixed tilting block (310) and the sliding wedge block (320) are respectively fixed to the opposite surfaces of the fixed guide plate (220) and the ejector plate (230), and the tilting ejector assembly (300) and the limit switch (250) are provided in two groups and are symmetrically arranged on both sides of the fixed guide plate (220).

4. The injection mold lift mechanism according to claim 1, characterized in that: The output ends of the two groups of limit switches (250) are electrically connected to a controller, and the controller is used to synchronously control the start and stop operations of the driving rods (330) on both sides.

5. The injection mold lift mechanism according to claim 1, characterized in that: The upper and lower ends of the guide rod (221) are fixedly connected to the bottom surface of the mold (200) and the top surface of the fixed guide plate (220) respectively, and are used to guide the movement of the ejector plate (230). The elastic reset rod (231) is fixed to the bottom surface of the mold (200) and is used to drive the ejector plate (230) back.

6. The injection mold lift mechanism according to claim 1, characterized in that: The top end of the ejector rod (240) penetrates the mold (200) and extends into the mold cavity of the mold (200).

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